Art
[1]The present invention, a separate battery module comprising: a housing having an initial gap (Gap) configurable structure assembled between the positioning and bonding the base material between the components, without the jig, and a method of producing when performing electromagnetic pulse bonding process relates to a battery module housing It relates.
[2]This application claims priority to an application for the Korea Patent Application No. 10-2017-0124419, filed on September 26, dated 2017, all information disclosed in the specification and drawings of that application is hereby incorporated by reference into this application.
BACKGROUND
[3]
The battery module may be laminated in one direction and the electrode leads are configured to include a battery module housing for accommodating the packaging and electrically in series and / or parallel, a plurality of battery cells and the battery cells.
[4]
The battery module housing has a casing serves to provide mechanical support to the battery cells lack the mechanical strength and protection from external impact, such as these. The battery module housing may be made in various forms depending on the manufacturing lot of the battery modules in recent years in the form of a rectangular tube that is, referred to as a mono-frame, as disclosed in KR Patent Publication No. 10-2017-0083834 (19.07.2017) it is.
[5]
The mono-frame is snap manufactured integrally by extrusion or die-casting method, or the tower and lowers the plate and between the two side plates cross-it can be prepared by combining the fit, bolting or welding.
[6]
Wherein seunaet-fit manner and has the disadvantage that by applying a bolting system when producing mono-frame, the assembly process is simple to increase the durability and a difficulty and cost of the design change in accordance with the increased number of separate parts. Therefore, in recent years it has produced to produce a mono- or frame integrally bonding the four plates welded to the die casting method.
[7]
On the other hand, recently it spotlighted solid phase bonding technique of welding.
[8]
Solid state bonding technique is a technique to preserve the original characteristics of the base material that has by suppressing or prevent the possible melting of the base material and to maximize the characteristics of the components are integrated to minimize the defects of the junction. Composite materials such as was the development of the development and solid bonding technology to the development of high-tech industry of new metallic materials largely the spotlight this due to the traditional fusion welding techniques to bond the non-material, of complex shape material, high quality and high precision is required that it is possible to bond the materials.
[9]
The solid phase with one of the bonding techniques there are electromagnetic pulse bonding can be used in the battery module housing junction, electromagnetic pulse technology (Electro Magnetic Pulse Technology) due to the high current instantaneously flows in the coil induces a current in one base material produced and by the Lorentz force as one modified base shape is a technique for bonding and collision with other base material and the high speed.
[10]
To enforce these electromagnetic pulse bonded to need for example generate an induced current at one end of the top plate at one end and the off state disappointed predetermined distance down the upper end of the side plate of the joining of the top plate target base portion wherein a separate positioning and initial gap to enable a jig for setting the constant distance, but it is difficult to process these jobs. On the other hand, there are many cases when junction electromagnetic pulse for each end are formed low, the induced current density corresponding to low speed crashes Lorentz force is insufficient, part of the base material is left in non-bonded state. The non-bonded portion can be very vulnerable to external shocks it causes to easily cause cracking of the battery module housing. Therefore, the battery module housing, and can more easily perform the electromagnetic pulse welding, there is a need in this way to eliminate the non-bonded portion.
Detailed Description of the Invention
SUMMARY
[11]
The present invention, as designed to solve the above problems, capable of applying electromagnetic pulse bonding techniques require the initial gap (Gap) between the bonding target base material to a battery module housing junction separate without jig pliers and target structure a battery module housing, and an object of the present invention to provide a method of manufacturing the same with a.
[12]
However, the object of the present invention will be able to be clearly understood to those skilled in the art from the description of the invention described below is not limited to the above-described problems, that are not mentioned yet another task are.
Problem solving means
[13]
According to the present invention, there is provided a respective pipe in the form of a battery module housing inner space capable of accommodating the battery cell is formed, and the standing disposed facing each other, and the target portion in the longitudinal direction is specified as the top and bottom, in the target portion perpendicular to the first and second side plates having a protrusion formed in the spacer; And the first and second doedoe respectively horizontally disposed in the upper and lower portions of the side plate, the first and is supported by the spacers of the second side plate electromagnetic pulse bonding while maintaining a gap between said target portion the battery has a module housing including a top and a drawer comprising a flyer plate is joined to the target portion may be provided by.
[14]
Said fryer unit is identified by both ends of the top and Lower plate, said top and Lower plate, respectively, and including a cover formed to be thicker than said fryer unit between the flyer unit is located where the both ends 2, add the lid of the first is fitted between the side plates of the spacers and the second spacers of the side plate may be space for positioning the first and second side plates.
[15]
The spacer may be provided at one side edge close to the target portion in the interior space side.
[16]
And forming the pliers part and the cover part step, the spacer has a cross-section to take the rectangular shape on the interview pliers part and the stepped parts of the cover.
[17]
The spacer, takes one additional round structure faces the inner space, and can access to said cover.
[18]
The spacer is a second portion located on the other side, on the one side may take the chamfer structure.
[19]
Said fryer unit can include a notch which is extended to be longer than before electromagnetic pulse bonding length of the target portion with a non-junction does not have the target portion and the joint made, and induced to exit the the non-junction broken by the impact when the electromagnetic pulse bond have.
[20]
According to a further aspect of the invention, there is provided a method for producing a tube in the form of each battery module to the housing by applying an electromagnetic pulse having a bonding technique that can hold the inner space of the battery cell,
[21]
Having a plate-like structure, length and a first and a second side plate provided with a vertical projection formed in the spacer in the target part and the target part that is specific to the top and bottom in a direction, opposite ends two pliers specified where parts of the tower and the drawer comprising: providing a plate; The first and second mutually opposed side plates to stand layout, but arranging the top or Lower plate horizontally with respect to the first and second side plates, the pliers addition of the first and second spacers on the side plates It is supported by a positioning step of an electromagnetic pulse to be joined to maintain a gap between said target portion and facing the target portion; And may be a method for manufacturing a battery module housing including the EMP bonding step of bonding to the target portion the pliers parts provided with the electromagnetic force to form an induced current in said fryer unit.
[22]
The top and Lower plate by comprising a cover formed to be thicker than the pliers part between the above specified two places pliers unit in both ends, wherein in the positioning step, the spacer and the spacer of the first side plate and the second side plate is fitted in the space between the positioning may be for the first and second side plates.
[23]
The spacer may be provided at one side edge close to the target portion in the interior space.
[24]
And forming the pliers part and the cover part step, the spacer has a cross-section to take the rectangular shape on the interview pliers part and the stepped parts of the cover.
[25]
The spacer, takes one additional round structure facing the inner space side, and can access to said cover.
[26]
The spacer is a second portion located on the other side, on the one side may take the chamfer structure.
[27]
It said fryer unit can include a non-joint and extends longer than the entire length of the electromagnetic pulse junction target portion does not have the target portion and the bonding achieved.
[28]
It said fryer unit can further include a notch for guiding out so that the non-junction broken by impact during bonding by the bonding step EMP.
Effects of the Invention
[29]
According to an aspect of the invention, the bonding target base the initial gap (Gap) is required electromagnetic pulse Joining a separate jig, without the battery module can be applied to the housing joint pliers, and the target structure in the battery module housing and their having an in between It may provide a method of manufacturing the same.
[30]
According to a further aspect of the invention, it is possible to minimize the gap flaring of the collision preventing cracks and the repulsive force of the pliers part and the target part to the impact absorption of the spacer.
[31]
According to still another aspect of the present invention, it is possible to improve the bonding quality by not leaving a non-bonded portion between the pliers parts at both ends of the pliers parts and the induced current is insufficient for the target unit.
[32]
It is not the effect of the present invention be limited to the above-described effects, effects which are not mentioned will be able to be clearly understood to those of ordinary skill in the art from the drawings herein and the appended claims.
Brief Description of the Drawings
[33]
Intended to illustrate the following figures attached to the specification are exemplary of the invention, the components which serve to further understand the spirit of the invention and together with the description of which will be described later invention, the details of this invention is described in such figures be construed as limited only is not.
[34]
1 is a schematic exploded perspective view illustrating a battery module housing in accordance with one embodiment of the present invention.
[35]
2 and 3 are is a perspective view of an electromagnetic pulse junction before / after battery module housing in accordance with one embodiment of the present invention.
[36]
4 and 5 are cross-sectional views of the electromagnetic pulse junction before / after battery module housing in accordance with one embodiment of the present invention.
[37]
6 and 7 is an enlarged main portion of Fig. 5 and Fig.
[38]
8 and 9 are main part enlarged cross-sectional view of the electromagnetic pulse junction before / after housing the battery module according to another embodiment of the present invention.
[39]
10 is a reference showing the state in which the spacer with the electromagnetic shock pulse junction inclined FIG.
[40]
11 is a reference showing the electromagnetic pulse bonded specimen Fig.
[41]
12 and 13 are perspective views of an electromagnetic pulse junction before / after housing the battery module according to another embodiment of the present invention.
[42]
14 and 15 are an enlarged main part of Fig. 13 and Fig.
[43]
16 is a flow chart of a method for manufacturing a battery module housing in accordance with one embodiment of the present invention.
Mode for the Invention
[44]
With reference to the accompanying drawings will be described a preferred embodiment of the present invention; Prior to this, the specification and are should not be construed as limited to the term general and dictionary meanings used in the claims, the inventor accordingly the concept of a term to describe his own invention in the best way It interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that can be defined.
[45]
Accordingly, the configuration shown in the examples and figures disclosed herein are in not intended to in the technical idea of ​​the present merely nothing but the embodiment most preferred embodiment of the present invention invention, a variety that can be made thereto according to the present application point It should be understood that there are equivalents and modifications.
[46]
Embodiment of the present invention because it can be of the shape and size of the elements in the drawings are exaggerated, omitted or schematically shown for a more clear description is provided to more completely explain the present invention by ordinary skill. Thus, the size and ratios of each component does not utterly reflect an actual size or scale.
[47]
1 is a perspective view of a schematic exploded battery module housing in accordance with one embodiment of the invention, Figures 2 and 3 are perspective views of an electromagnetic pulse junction before / after battery module housing in accordance with one embodiment of the present invention.
[48]
Battery module housing 100 of the present invention described below is necessary that mean a structure for housing the battery cells 200 in the inner space may be used for the purpose of accommodating articles other than the battery cell.
[49]
Note battery cells are accommodated in a battery module housing 100 of the present invention is to may be a pouch-type secondary battery. In this case, the battery cells are stacked or in a horizontal direction, can be accommodated in a battery module housing 100 to form the laminate in the vertical direction.
[50]
Battery module housing 100, as shown in Figs. 1 to 3, wherein the plurality of first and second side plates (10, 20) forming the two sides of the inner space in the battery cell may be housed and a top plate and a drawer (30, 40) forming the upper and lower sides of the inner space.
[51]
The battery module housing 100 provides a mechanical force to the storage battery cells and may serve to protect against such an external impact. Therefore, the above four plates constituting the battery module housing 100 (10,20,30,40) may be provided of a metal material so as to be rigid secured.
[52]
In addition, the first and second side plates (10, 20) and the top plate and the drawer (30, 40) is that the electromagnetic pulse edge of the plate-like structure 4 where they meet each other as bonding by (Electro Magnetic Pulse) laminating method It is can be integrated into the mono-frame of a rectangular tube shape.
[53]
Wherein an electromagnetic pulse joining techniques, technologies that because of the high instantaneous current flowing in the induction coil current is generated on one side and the base material as a base material one deformation by the Lorentz force junction collided with other base material and the high speed.
[54]
These electromagnetic When applying the pulse bonding technique to the battery module housing 100 is joined, be it becomes the bonding is possible at a low temperature without the base material melted maximize the properties of the components to minimize the defect occurs and the integration of the four junctions where can.
[55]
Although described later in detail, in the case of the battery module housing 100 according to this embodiment, when performing an electromagnetic pulse welding, for the joint pliers parts (31,32,41,42) and the target portion (11,12,21 , 22) being designed as a structure capable of setting the initial gap can be a bonding preparation process simple and easy joining it is possible to reduce the tolerances of the joint. This has the bonding quality of the battery module housing can be improved.
[56]
In the following with reference to figures 4 to 7, and more specifically with respect to the four plates constituting such a battery module housing (100). A first side plate 10 and the second side plate 20 is the same configuration that is symmetrical in the horizontal direction, the top plate 30 and lowers the plate 40 in this embodiment is the same configuration that is symmetrical in the vertical direction Since each of the duplicate description of the same configuration will be omitted.
[57]
The first side plate 10 and the second side plate 20 may be provided with the same thickness and shape, like the top plate 30 and the Lower plate 40 may be provided with the same thickness and shape. In this case it is preferred to prepare a relatively thicker than the thickness of the structure in order to increase the robustness of the battery module housing 100, first and second side plates (10, 20) on top and a drawer plate 30, 40 a thickness of.
[58]
First and second side plates (10, 20) is provided with a target section (11,12,21,22), and the top plate and the drawer (30, 40) in accordance with the present invention pliers unit (31,32,41 and a, 42).
[59]
The target unit (11,12,21,22) includes first and second, when the side plates (10,20) have been disposed upright and can be specified as the top and bottom, the pliers parts (31,32,41,42 ) may be specified in both ends in the left and right when disposed horizontally and the top drawer plate (30, 40).
[60]
2 to the other words, referring to FIG. 5, the target portion (11,12,21,22) includes first and second side plates (10, 20 according to the longitudinal direction (X axis direction) of the battery module housing 100 ) may be specified as the top line and the bottom line, pliers unit (31,32,41,42) is on top and a drawer which faces down to the target unit (11,12,21,22), the plate (30, 40 ) it may be characterized by both ends of the line.
[61]
The target portion (11,12,21,22) and the pliers parts (31,32,41,42) is a portion of the interconnect is made, pliers unit above or below the target portion (11,12,21,22) (31,32,41,42) the state by applying a pulse electromagnetic bonding techniques pliers unit (31,32,41,42) to a bonding target portion to collide with the (11,12,21,22) located in between each other can. The induced current may be formed only on the pliers parts (31,32,41,42).
[62]
In particular, 4 to as shown in Figure 7, the first and second side plate spacers (10, 20) is formed vertically protrude from the target section (11,12,21,22) according to the invention (13, the 14,23,24) further includes. Spacers (13,14,23,24) may be provided at one side edge of the nearest target portion (11,12,21,22) in the internal space side of the battery module housing 100, the cross section can take a rectangular shape have.
[63]
It said spacers (13,14,23,24) that has the role to set the initial gap (G) between the pliers parts (31,32,41,42) and the target portion (11,12,21,22) for the electromagnetic pulses junction can do.
[64]
For example, the spacer pliers 31 and the first of the first side plate 10, top plate 30 by supports the top plate 30 at the top of the target portion 11 is formed projecting vertically by a predetermined interval as between the target portion 11 of the upper side plate 10, and FIG. 6, the gap (G) is present.
[65]
The gap (G) between the target unit (11,12,21,22) and the pliers parts (31,32,41,42) is necessarily at least the gap (G) necessary for electromagnetic pulse welding. The gap (G) target the pliers parts (31,32,41,42) by electromagnetic force be formed in an induced current in the pliers parts (31,32,41,42) in the holding state portion (11,12,21, 22) by the collision as shown in Figure 7, it is possible to bond the pliers parts (31,32,41,42) and the target portion (11,12,21,22).
[66]
On the other hand, the tower and the Lower plate 30 and 40 is the cover part (33 that is formed thicker than the pliers parts (31,32,41,42) between the pliers parts (31,32,41,42) located within the two opposite ends each and it may include 43).
[67]
This embodiment a top plate 30 has a downward bring the center of the step between the relatively thick and these cover portions (33,43) than the pliers parts (31,32,41,42) of the both ends of the two locations as it may be a concave shape.
[68]
And first and second upper spacers (13,14,23,24) are pliers parts (31,32,41,42) and the lid portion (33 at both ends of the top plate 30 of the side plates (10, 20), able to interview the step surface 43) may be formed of a rectangular shape.
[69]
Therefore, Fig. 4 and 6 again, the top plate 30 includes a lid portion 33 is inserted into the space between the spacer 13 and second spacer 23 of the side plates a first side plate 10 fit It is can be positioning horizontally on the first and second side plates (10,20). Similarly drawer in such a way the plate 40 can be positioning horizontally the lower part of the first and second side plates (10,20).
[70]
In this way, the cover portion 33 of the top plate 30. The first and second spacer side plates (10,20) (13,23) Hit space sandwiched between a top plate 30, first and second the initial gap between the side plates at both ends at the same time and location are fixed for 10 and 20) pliers parts (31, 32) and target portion (11,21) of the first and second side plates 10 and 20 (G) this is set.
[71]
Therefore, it is possible to directly perform the electromagnetic pulse joint In such a state in the case of the present invention, when performing an electromagnetic pulse welding, a separate jig (zig) for the gap (G) between the set plate does not need.
[72]
In addition, it is possible to have allowance when the electromagnetic pulse bond reduced because the first and second position because of the top plate and drawer (30, 40) for the side plates 10 and 20 may be accurately aligned (align).
[73]
Next will be described a battery module housing 100 in accordance with another embodiment of the present invention will be described with reference to FIG. 8 to FIG. The same reference numerals as those of the above-described embodiment represent the same elements, and duplicate description of the same members will be omitted, and description mainly the differences with the embodiments described above.
[74]
As shown in Figure 8 to Figure 9, the spacers (13,14,23,24) in accordance with another embodiment of the present invention, one side (13a) facing the inner space side of the battery module housing 100 has a round taking the structure, the second portion (13b) located opposite to the one side (13a) is provided in a shape that takes a chamfer (chamfer) structure.
[75]
The above-described embodiment, the spacer 13 is then easily and the top plate's features to interview at a right angle to the 30 top plate 30 in a rectangular shape to assemble to the space between the spacer assembly top plate 30 is to be stably fixed to the Although the advantage of, and also may occur cracks and the spacers (13,14,23,24), the bending phenomenon in the electromagnetic shock pulse welding.
[76]
For example, referring to Figure 10, the spacer 13 of an rectangular shape of the above-described embodiments are joined in a strong load according to a modified spacer 13 of pliers 31 flyer 31 and the target part 11 direction may be obliquely folded as θ. At this time, the portion of the spacer 13 and the top plate 30 at right angles to the interview is liable to cause a crack due to shock.
[77]
Spacers (13,14,23,24) according to the present embodiment on the other hand, unlike the above-described embodiments, one side (13a) and the tangent to the lid portion 33 of the top plate 30 takes a round structure , the other side (13b) located on the other side of the one side (13a) has a structure that goes from the top to the bottom of spacers (13,14,23,24) to the chamfer structure is gradually increased in width.
[78]
One side of said round of structure (13a) can prevent cracks and gaps in the flaring top plate (30) part facing this sikimeuroseo mitigate the impact of the electromagnetic pulse welding.
[79]
And kkeokyi the joining direction of the second portion (13b) is a flyer 31 and the target part 11 batdeorado the load deformation of the fryer 31 because it goes from top to bottom increases gradually the width of the chamfer structure or it may collapse.
[80]
Therefore, this battery module housing 100 according to this embodiment having the spacers (13,14,23,24) are cracks around the spacers (13,14,23,24) according to the impact of the electromagnetic pulse welding, the gap flaring to possible to prevent the spacers (13,14,23,24) are flexural phenomena it may be greater than the structural robustness and bonding reliability of a battery module housing (100).
[81]
Then with reference to Figs. 11 to 15 will be described in a further embodiment of the invention.
[82]
First, referring to FIG. 11 prior to the description and reviewing the bonded specimen in accordance with the pulse electromagnetic bonding techniques, the both ends of the bonded specimen be seen that the remaining non-bonded state as (M). This is because you have the density of the induced current by the coil is insufficient impact strength and the low speed, consequently, its Lorentz at both ends of the base material.
[83]
12 to refer to FIG. 15, referring to a further embodiment of the invention, pliers parts (31,32,41,42) of the electromagnetic pulse welding tower and lowers the plate (30, 40) before the (in Fig. 14 L as a) represented by the first side plate 10 and the second side plate 20 is extended longer than the length of the target portion (11,12,21,22), the target portion (11,12,21,22 ) and does not face may be bonded comprises a non-abutment (31a, 32a, 41a, 42a) does not occur. For example, the non-joint (31a, 32a, 41a, 42a) may be preferably formed to be about 1 ~ 2mm.
[84]
If added, as shown in Figure 12, the non-junction may correspond to both ends of the ends of the pliers parts (31,32,41,42), where there is an induced current when the electromagnetic pulse can be insufficiently bonded to form . Failure to this embodiment, in view of the rest of the non-joint pliers unit (31,32,41,42) except for (31a, 32a, 41a, 42a) section matches the length of the target portion (11,12,21,22) it can be configured.
[85]
That is, the non-joint (31a, 32a, 41a, 42a) with the exception of the pliers parts (31,32,41,42) segment is a segment which faces the target unit (11,12,21,22) all sectors electromagnetic pulse the density of the induced current during bonding can be sufficiently secured. Therefore, the non-joint pliers with the exception of portions (31,32,41,42) and a target interval portion (11,12,21,22) is the total interval can be the complete joint improves the bonding quality of a battery module housing (100) It can be.
[86]
On the other hand, on top and a non-abutment in the Lower plate (30,40) (31a, 32a, 41a, 42a) it is desirable to remove not only can lead to interference with other parts, because it can lead to adverse effects, such as when an external impact crack . The pliers parts (31,32,41,42) according to the present embodiment, as shown in Fig. 14 and 15, and on either side of the end portion to form a notch (31b) non-abutment (31a, 32a, 41a, 42a) is induced to be broken out by itself as a shock when the electromagnetic pulse welding.
[87]
The notch (31b) can be seen when the battery module housing 100 as a whole formed by a total of four in each corner portion. More specifically, the notches (31b) may be provided at the boundary of the non-joined section and the joined section, the boundary line of the pliers parts (31,32,41,42) has a target portion (11,12,21,22) of it can match the edge line.
[88]
According to the present embodiment configured as notches you can easily remove the unwanted products in the non-junction (31a, 32a, 41a, 42a).
[89]
Then with reference to Fig. 16 and Figs. 1 to 7 to find out that the process for producing a battery module housing 100 in accordance with the present invention, briefly.
[90]
Method of manufacturing a battery module housing 100 in accordance with the present invention, the above-described first and second pliers parts (31, step (S10), to provide a second side plate (10, 20) and the top plate and the drawer (30, 40) , 32,41,42) and the target portion (11,12,21,22), the initial gap (G) is the set of four positioning step of placing the plate (S20) and said fryer unit (31,32,41 so that the , 42) comprises a EMP (Electro Magnetic Pulse) joining step (S30) of bonding the pliers parts (31,32,41,42) by electromagnetic force to form an induced current in a target portion (11,12,21,22) can do.
[91]
More specifically first, it provided the above-described first and second side plates (10, 20) and the top plate and the drawer (30, 40) constituting a battery module housing (100). At this time, the pliers parts (31,32,41,42) of the top plate and the drawer (30, 40) is more than the target portion (11,12,21,22), a length of the first and second side plates (10, 20) about 1 ~ 2mm can be provided longer.
[92]
The horizontally disposed but with the following, wherein the first and second side plates (10,20) facing each other to the standing place, and the top plate 30, the first and second side plates (10, 20), flyer unit (31,32,41,42) the first and is supported by spacers (13,14,23,24) of the two side plates (10, 20) first and second side plates (10, 20) as the interface with the target part (11,12,21,22) and to maintain a gap (G) between the the target unit (11,12,21,22).
[93]
At this time, the insert fitted into the lid part (33,43) of the top plate 30 into the space between the top of the spacers (13,14,23,24) of the first and second side plates (10,20), a top plate 30 is straddle the spacers (13,14,23,24) of the first and second side plates 10 and 20 can be horizontally supported on the upper portion. And corresponding to the opposite ends of the top plate 30, pliers parts (31,32,41,42) has a target portion (11,12,21,22) and the electromagnetic the first and second side plates (10, 20) the initial gap (G) for pulse junction is directly set.
[94]
In this state to form an induced current in both pliers parts (31, 32) in the longitudinal direction (X axis direction) of the top plate 30 using a bonding apparatus EMP. At this time, the pliers parts (31, 32) of the top plate 30 by the electromagnetic force to the first and to be joined with two strong impact and the target portion (11,21) of the side plates 10 and 20 (the Lorentz force) can.
[95]
Then, in the case of Lower plate 40 is also fitted into the space between the bottom of the spacer (14,24) of the first and second side plates (10, 20) in the same manner as the top plate 30, first and second after positioning to the side plates (10, 20), lower pliers parts (41, 42) and the first and the second performs the EMP joined to the target portion 12 and 22 at the bottom of the side plates (10, 20) of the plate by it the four plates (10,20,30,40) can be prepared a battery module housing (100) integral with each tube type.
[96]
In accordance with the present invention having this structure and operation, pliers parts initial gap (G) setting a battery module housing (31,32,41,42) and the target portion (11,12,21,22) corresponding to the junction 100 is not a separate jig for the initial gap (G) set when performing electromagnetic pulse bonding required, because it is in its own structure. Therefore, the battery module housing 100, the bonding process can be greatly simplified, and it is possible to reduce the tolerance.
[97]
Further, according to the present invention, it is possible to minimize the gap flaring of the cracks and the repulsive force of the shock EMP junction, whereby it is possible to increase the structural steel geongeong a battery module housing (100).
[98]
In addition, the non-bonded portion between the pliers parts (31,32,41,42) and the target portion (11,12,21,22) of the pliers parts (31,32,41,42) at both ends of the induced current is insufficient to form by so as not it is possible to further improve the bonding completeness.
[99]
Or more, although shown and described for the preferred embodiment of the invention, the invention is not limited to the preferred embodiment of the above-mentioned specific, in the art the art without departing from the subject matter of the present invention invention claimed in the claims those of ordinary skill, and not to can be readily applied to other types of embodiment, of course, that such changes are within the scope of the claims described.
[100]
On the other hand, in the present specification. In top, bottom, left, but using the term that indicates the direction, such as right, such terms are intended only for the convenience of description, may be expressed differently depending on the position that is put in position to view the observer and the target are those skilled in the art it is obvious to.

Claims

[Claim 1]As each tube in the form of a battery module, the housing interior space that can hold the battery cells are formed, facing each other to the standing and arranged, the length and the target portion in a direction specified by the top and bottom, formed in a vertical projection in the target portion spacer a first and a second side plate provided with a; And the first and second doedoe respectively horizontally disposed in the upper and lower portions of the side plate, the first and is supported by the spacers of the second side plate electromagnetic pulse bonding while maintaining a gap between said target portion by a battery module housing comprises a top and a drawer comprising a flyer plate is joined to the target portion.
[Claim 2]
The method of claim 1, wherein the pliers part the top and a drawer being specific to both ends of the plate, said top and lowers plates, each comprising a cover formed to be thicker than said fryer unit between the flyer unit is located where the both ends 2, battery module housing wherein the cover portion is fitted in between the spacers of the spacer and the second side plate of the first side plate area, characterized in that the positioning with respect to the first and second side plates.
[Claim 3]
The method of claim 1, wherein the spacer includes a battery module housing, characterized in that provided in one side edge portion close to the target in the interior space side.
[Claim 4]
The method of claim 2, wherein forming the pliers part and the cover part step, the spacer includes a battery module housing, characterized in that the cross section is taking the square shape in the interview pliers part and the stepped parts of the cover.
[Claim 5]
The method of claim 2 wherein the spacer, takes one additional round structure faces the inner space, and a battery module housing, characterized in that the part in contact with the cover.
[Claim 6]
The method of claim 5, wherein the spacer is, the battery module housing to the other side located on the opposite side to the one side characterized in that the structure takes a chamfer.
[Claim 7]
The method of claim 1, wherein the pliers parts electromagnetic pulse junction is more elongated than the whole length of the target portion with a non-junction does not have the target portion and the joint made, and induced to exit the the non-junction broken by the impact when the electromagnetic pulse bond battery module housing comprises a notch.
[Claim 8]
A method for manufacturing an electromagnetic pulse joining each tube in the form of a battery module housing by applying the technology formed the inner space capable of accommodating the battery cell, a plate-like structure, with a length specified by the top and bottom along the direction of the target portion and the comprising: providing a plate having a top and lowers the first and second side plates, and a flyer that is specific to the both ends 2, where parts having a vertically projecting spacer formed in the target section; The first and second mutually opposed side plates to stand layout, but arranging the top or Lower plate horizontally with respect to the first and second side plates, the pliers addition of the first and second spacers on the side plates It is supported by a positioning step of an electromagnetic pulse to be joined to maintain a gap between said target portion and facing the target portion; And a method of manufacturing a battery module housing comprising the EMP bonding step of bonding to the target portion the pliers parts of the electromagnetic force to form an induced current in said fryer unit.
[Claim 9]
The method of claim 8, by having the top and a Lower plate portion lid formed thicker than said fryer unit among the above specified two places pliers unit in both ends, wherein in the positioning step, the spacer of the first side plate and the 2 is fitted in the spacer between the side plate space process for producing a battery module housing, characterized in that the positioning with respect to the first and second side plates.
[Claim 10]
The method of claim 8, wherein the spacer is method of producing a battery module housing, characterized in that provided in one side edge portion close to the target in the interior space.
[Claim 11]
10. The method of claim 9, wherein forming the pliers part and the cover part step, the spacer method battery module housing section is taking a rectangular shape, characterized in that in interviewing the pliers part and the stepped parts of the cover.
[Claim 12]
10. The method of claim 9, wherein the spacer, takes one additional round structure facing the inner space side, and method for manufacturing a battery module housing, characterized in that the part in contact with the cover.
[Claim 13]
The method of claim 12, wherein the spacer is a method for manufacturing a battery module housing, characterized in that taking the other side is chamfered structure situated on the other side to the one side.
[Claim 14]
In the pliers joint portion electromagnetic pulse before the target is extended longer than the length of the method of manufacturing a battery module housing, characterized in that it comprises a non-junction does not have the target portion and the joint made according to claim 8.
[Claim 15]
15. The method of claim 14 wherein the method of manufacturing a battery module housing portion pliers according to claim 1, further comprising a notch for guiding out so that the non-junction broken by impact during bonding by the bonding step EMP.