Art
[1]
This application claims priority to an application for the Korea Patent Application No. 10-2016-0153243, filed on 17 dated 11 January 2016, all information disclosed in the specification and drawings of that application is hereby incorporated by reference into this application.
[2]
The present invention relates to a battery pack including the battery module, and this, and more particularly, to a battery pack of the battery module can easily be included and this, in combination to the end plates.
BACKGROUND
[3]
Technology and the secondary battery demand as an energy source that has been rapidly increased as the demand increases, but the nickel-cadmium battery or a hydrogen ion battery is used as a conventional secondary battery, in recent years, the memory effect as compared to a secondary battery of nickel based on the mobile device there is free and the charge and discharge hardly occurs, self-discharge rate is very low widely used in the lithium secondary battery is a high energy density.
[4]
The lithium secondary battery mainly uses a lithium-based oxide and carbon materials as an anode active material and the negative active material. The lithium secondary battery is provided with such a positive electrode active material and the negative electrode active material are respectively coated with the positive electrode plate and the negative electrode plate with a separator disposed between the electrode assembly and the casing for sealing the housing with the electrode assembly and an electrolyte, that is, the battery case.
[5]
The lithium secondary battery has a positive electrode, a negative electrode and composed of a separator and an electrolyte interposed between them, a lithium ion battery depending on which to use the positive electrode active material and the negative active material (Lithium Ion Battery, LIB), a lithium polymer battery (Polymer Lithium Ion Battery divided into, PLIB) and the like. Typically, the electrodes of these lithium secondary batteries is formed by after coating aluminum or copper sheet (sheet), mesh (mesh), the film (film), the foil (foil) to the positive or negative electrode active material of the current collector, such as drying.
[6]
Such secondary batteries, by using the cover case and at least one of the end plates and protects the battery cell. That is, to protect the battery cell to receive the battery cell to the inside of the cover and case and end plate. However, in the case of the conventional secondary battery using a variety of fastening members, e.g., bolts or the like to bond the cover sheet, the case or the end plate. However, in order to fasten over the fastening member, such as a chapter bolt cover, and the fastening part of the long bolt or the like case or the end plate it should be formed, due to the fastening part of this chapter bolt increases the overall size of the secondary battery, of the long bolt there is a problem that the working time increases due to the process according to the conclusion.
Detailed Description of the Invention
SUMMARY
[7]
Accordingly, the object of the present invention is to facilitate the fastening of the end plate in the battery module and to provide a battery pack including the battery module, and it may help reduce the overall size.
[8]
Further, to provide a battery pack including the battery module, and this, with the operation time can be reduced through simplification to simplification of the working process in a combination of the end plate.
Problem solving means
[9]
According to an aspect of the invention, a plurality of battery cells stacked body which battery cells are stacked; A plurality of end plate surrounding at least a portion of the battery cell stack; And coupled to the plurality of end plates it may be provided with a battery module including a support member for supporting the end plate.
[10]
Further, bent from each end of the plurality of end plates are provided with a first bend and a second bend portion is formed, the support member, said first bend and said second bend of said plurality of end plates It may be coupled to the unit.
[11]
Also, the first bent portion is formed with a first engaging projection, and the second bent part has a second engaging groove is formed, the support member has the second and the first coupling groove coupled to the first engaging projection, the second coupling protrusion is coupled to the second coupling groove may be formed.
[12]
In addition, the first coupled to the first coupling protrusion first engaging groove in the upper side of the first bending portion, the second coupling protrusion may be coupled to the second coupling groove on the lower side and the second bending portion.
[13]
In addition, the end plate is provided with bent to be formed is bent from the end portion, the bent portion is formed in part accommodating at least one receiving groove is formed, in the side end portions of the support member, is inserted into the receiving groove of the receiving portion addition, which can be engaged can be formed.
[14]
Further, the engaging portion may be provided with a pair of clamping ring formed so as to face a direction that is spaced apart from each other are opposite.
[15]
In addition, the swivel hook may be formed in an inclined for ease of insertion of the receiving groove.
[16]
Further, at least a portion of the retaining ring may be a round portion is formed.
[17]
According to another aspect of the present invention, there may be provided a battery pack including the battery module described above, also, there is a car including the battery module may be provided.
Effects of the Invention
[18]
Embodiments of the present invention, there is an effect that it is possible to reduce the overall size, which facilitates the fastening of the end plate in the battery module through a coupling protrusion and the coupling groove.
[19]
In addition, there is an effect that can reduce work time through simplification to simplification of the working process in a combination of the end plates through the engagement projection and the engagement groove.
Brief Description of the Drawings
[20]
1 is a perspective view of the combination of the battery module according to a first embodiment of the present invention.
[21]
2 is an exploded perspective view of a battery module according to a first embodiment of the present invention.
[22]
Figure 3 is a perspective view of the support member is detached from the end plate in the form a battery module according to a first embodiment of the present invention.
[23]
Figure 4 is a perspective view of the support member is coupled state the end plate on the battery module according to a first embodiment of the present invention.
[24]
Figure 5 is a side view showing an enlarged view of a support member coupled to the end plate in the battery module according to a first embodiment of the present invention.
[25]
Figure 6 is a perspective view of the support member is detached from the end plate in the form a battery module according to a second embodiment of the present invention.
[26]
7 is a perspective view of a state in which the support member coupled to the end plate in the battery module according to a second embodiment of the present invention.
[27]
Figure 8 is a perspective view of the support member is detached from the end plate in the form a battery module according to a third embodiment of the present invention.
[28]
Figure 9 is a perspective view of the support member is coupled state the end plate on the battery module according to a third embodiment of the present invention.
Mode for the Invention
[29]
Will be described in detail with respect to the battery module and a battery pack including the same according to the preferred embodiment described below, the present invention will be described with reference to the accompanying drawings.
[30]
Herein and in the terms or words used in the claims is general and not be construed as limited to the dictionary meanings are not, the inventor can adequately define terms to describe his own invention in the best way on the basis of the principle that the interpreted based on the meanings and concepts corresponding to technical aspects of the present invention. Accordingly, the configuration shown in the examples and figures disclosed herein are in not intended to limit the scope of the present is merely a preferable 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.
[31]
Size of the particular portion to be combined with each component or components in the drawings are exaggerated, omitted for the purpose of convenience or clarity, or was schematically illustrated. Therefore, the size of elements does not utterly reflect an actual size. If a detailed description of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention, such explanation will be omitted.
[32]
The term "coupled" or "connected" as used herein, is one member and the other members directly bonded, or a single member, as well as when directly connected or via a joint member indirectly coupled to another element or indirectly to also include the case that is connected.
[33]
1 is a perspective view showing coupling of a battery module according to a first embodiment of the present invention, Figure 2 is an exploded perspective view of a battery module according to a first embodiment of the present invention, Figure 3 is according to the first embodiment of the present invention and in the battery module from the end plate supporting member is a perspective view of the separated state, Figure 4 is a perspective view of the support member is coupled state the end plate on the battery module according to a first embodiment of the present invention, Figure 5 of the present invention claim is an enlarged view of a support member coupled to the end plate in the battery module showing a side view of the first embodiment.
[34]
If Figure 1 to refer to Figure 5, a battery module 10 according to one embodiment of the present invention, the battery cell stack 100, a plurality of end plates (200a, 200b) and the support member 300 It includes.
[35]
Battery cell stack 100 may be configured such that a plurality of stacked battery cells (110). Battery cells 110 may have various structures, and the plurality of battery cells 110 may be stacked in a number of ways. Battery cell 110 is a positive electrode plate-separator-unit are arranged in order of the negative electrode plate cells (Unit Cell) or bipolar plate - separator - negative electrode plate - separator - positive electrode plate-separator-cell a bi-cell (Bi-Cell) arranged in order of the negative electrode plate according to the capacity it may have a structure in which a plurality of lamination. Then, the battery cell 110 may include an electrode lead. Electrode leads are exposed to the outside there is a conductive material can be used as a kind of terminals connected to an external device. Electrode lead may include a positive electrode lead and the negative electrode lead. Positive electrode lead and the negative electrode lead is located in the same direction with respect to the longitudinal direction of the battery cells 110 may have or the positive electrode lead and the negative electrode lead, the battery cell 110 to be disposed in opposite directions with respect to the longitudinal direction of the It may be. On the other hand, the battery cell stack 100 may be provided with a number of cartridges (120) for accommodating the battery cells 110. Each cartridge 120 may be manufactured by injection molding of plastic, a plurality of cartridges 120 accommodating portion is formed that can hold the battery cells 110 may be stacked. A plurality of cartridges (120) are laminated cartridge 120 assembly may be provided with a connector element, or terminal element. Connector elements, for example, battery cell 110 may provide the data for the voltage or temperature BMS (Battery Management System, not shown) may include various types of electrical connection part to the connection member for connection or the like that of have. Then, the terminal element comprises a positive terminal and the negative terminal as a main terminal coupled to the battery cell 110, the terminal element is provided with a terminal bolt can be connected to external devices electrically.
[36]
End plate 200 may be provided in plurality, the plurality of end plates (200a, 200b) are provided so as to surround at least a portion of the battery cell stack 100. Here, the end plate 200 may be provided to surround at least a portion of the battery cell 110 and the like to protect the battery cell 110, or support various structures case or cover of the can. 1 and 2, there is a cartridge 120 with a battery cell 110 can be stored stacked, the end plates 200 are coupled to both ends of the cartridge 120. Here, will be described for example with reference to Figures 1 and 2, the lower side of the end plate end plate through a bolt from the upper side of the 200, 200 and the cartridge, and 120 can be coupled to end plates 200 in, the end plate 200 and the cartridge 120 can be attached through a support member 300 which will be described later. However, this is an illustration, it can be engaged by the upper and lower both the support member 300 of the end plate 200. In addition, the support member 300, the end plate 200 and the cartridge 120 can be bonded, and the end plate 200 via the bolt at the lower side of the end plate 200 via the above the end plate 200 a cartridge (120) can be coupled. In this manner, or bonded by the upper and lower both the support member 300 of the end plate 200, or, is coupled the end plate 200 by the support members 300 in at least one location, and thereby necessary possible to reduce the number of bolts, so it is possible to reduce the overall size of the battery module (10) and simplified to simplify the working process. On the other hand, below the center of the case to be engaged by the lower side support members 300 of the bolt it has been fastened and the end plate 200 on the upper side of the reference to Figures 1 and 2 for convenience of explanation, the end plates 200 It will be described with.
[37]
Support members 300 are coupled to a plurality of end plates (200a, 200b) to support the end plate (200). Support members 300 may be provided in a variety of sizes and shapes, materials, e.g., Figs. 1 to, as shown in Figure 3 the two end plates (200a, 200b) located in the center of the two end plates (200a of , it may be composed of a member in the longitudinal direction to connect the 200b). Here, the number of end plate 200 is merely an illustration, the end plate 200 may be provided in various numbers.
[38]
Referring to Figure 1 to Figure 5, a plurality of end plates (200a, 200b) is provided with a first bending portion 210 and the second bent section 220 formed by bending from the respective ends. Then, the support members 300 is coupled to the first bent part 210 and the second bent section 220 formed in the end plate 200. For this purpose, the first bending portion 210 is provided with a first coupling the first coupling projections 211 are formed, the second bending part 220, the second coupling groove 221 is formed, the support member 300 the groove 310 and the second engaging projection 320 is formed. The second engaging projection 320 of the support member 300, the first engaging groove 310 is first coupled to the first coupling protrusion 211 of the bent portion 210, a support member 300 of the second 2, the second engagement of the bent part 220 are coupled to the grooves 221. On the other hand, it Figures 4 and 5, the first coupling groove 310 is engaged with the first engaging projection 211 on the upper side of the first bent portion 210, a second engaging projection 320 of the second in the lower side of the bent portion 220 may be coupled to the second coupling groove 221. Thus, the ease of coupling is improved by combining staggered manner, In addition, there is an effect that the bond strength of the support member 300 is increased. However, be sure this is not limited, the respectively coupled to the first coupling protrusion 211 and the second engaging projection 320, the first coupling on both the upper groove 310 and the second coupling groove 221, or, or, The in the first engagement projection 211 and the second engaging projection 320 is both the lower side may be coupled to the first coupling groove 310 and the second coupling groove 221. The first bent portion 210 and the second may be coupled to the bent part supporting member 300 is formed the engaging projection to 220 are respectively such that corresponding grooves are formed, or, the first bending part 210 and may be coupled to the second bent portion 220, grooves are formed respectively corresponding to the engaging projection on the support member 300 is formed so. As a result, without using any fastening members such as bolts a support member 300 can be coupled to the end plate 200.
[39]
6 is a support member is coupled to the end plate in the battery module according to a second embodiment of a perspective view of the appearance of a support member separate from the end plate in the battery module according to a second embodiment of the present invention, Figure 7 is the invention It is a perspective view of the appearance.
[40]
But below with reference to the accompanying drawings describe the action and effect of the battery module 10 according to the second embodiment of the present invention, the content and the common part is described in the battery module 10 according to the first embodiment of the present invention It is replaced by the foregoing description.
[41]
And forming the receiving section 230 in the case of the second embodiment of the present invention, the bent part 210 and 220 of end plate 200, a support member in that the engagement portion 330 at the respective side end portions in the 300 form No. the difference with the first embodiment.
[42]
6 and 7, a plurality of end plates in the battery module 10 according to the second embodiment of the present invention (200a, 200b) have bent portions (210, 220) that is formed by bending from an end portion, respectively is provided, the bending portion (210, 220) may be formed in the receiving portion 230 is formed with a receiving groove (231). Here, the receiving unit 230, for example, be projected to the receiving groove 231 is formed from a bent portion (210, 220). Then, the side end portions of the support members 300 has a locking ring the locking portion 330 is provided 331 to be coupled are inserted into the receiving groove 231 of the receiving portion 230 may be formed, respectively. Here, the side end portions of the support member 300 may be provided symmetrically, but is not limited to this. 6, the retaining ring 331 may be provided as a pair, retaining ring 331, a pair may be arranged to face the direction in which spaced apart from each other opposite to each other. Here, the engaging ring 331 may be formed of an inclined portion (332), receiving as retaining ring 331, a case that is inserted into the receiving groove 231, the inclined portion 332 is guided along the receiving portion 230 since the insertion groove 231, thereby facilitating the insertion of the engaging ring 331. And, Fig. 7, a pair of retaining ring 331 is coupled is inserted into the receiving portion 230 formed in the receiving groove 231. The supporting member 300 includes a plurality of end plates by (200a, 200b) can be coupled to.
[43]
8 is a support member is coupled to the end plate in the battery module according to a third embodiment of a perspective view of the appearance of a support member separate from the end plate in the battery module according to a third embodiment of the present invention, Figure 9 is the invention It is a perspective view of the appearance.
[44]
Below with reference to the drawings, but describes the operation and effects of the battery module 10 according to the third embodiment of the present invention, described in the battery module 10 according to the first embodiment or the second embodiment of the present invention information and the common portion is replaced by the foregoing description.
[45]
In at least that the forming of the round portion 342 in a part of the third embodiment when the swivel hook 341 of the invention differs from the second embodiment.
[46]
8 and 9, the third embodiment when the second as in the embodiment, the side end portions of the support member 300, engaging to be coupled are inserted into the receiving groove 231 of the receiving portion 230 the ring is an engagement section 340 having 341 may be formed, respectively. Then, the support members 300 retaining ring 341 formed in the second embodiment similarly provided as a pair, but spaced apart from each other and arranged to face the opposite direction, the rounded portion (342 at least a portion of the retaining ring 341 has ) it is formed. In this manner, when the retaining ring 341 is rounded portion 342 is formed than in the second embodiment, there are possible advantages inserted more smoothly.
[47]
On the other hand, a battery pack (not shown) in accordance with one embodiment of the present invention may include one or more of the battery module 10 according to one embodiment of the present invention as described above. In addition, the battery pack (not shown), such a battery module 10 in addition to, various devices for controlling the charging and discharging of the case, a battery module 10 for receiving such a battery module 10, such as BMS, current the sensor, a fuse or the like can be further included.
[48]
Meanwhile, the vehicle (not shown) in accordance with one embodiment of the present invention may include a battery module (10) above or a battery pack (not shown), in the battery module 10. The battery pack (not shown) this may be included. Then, the battery module 10 according to one embodiment of the present invention, the motor vehicle (not shown), for example, be applied to certain of the vehicle (not shown) that is adapted to use electrical, such as an electric car or a hybrid car can.
[49]
The present invention in the above Although the detailed description and specific examples, the invention is not limited by this is described below with the teachings of the present invention by one of ordinary skill in the art available are various changes and modifications within the equivalent scope of the claims. FIG.
Industrial Applicability
[50]
The invention is applicable to industries related to, in particular, relates to a secondary battery, the battery pack including the battery module, and it.

Claims
[Claim 1]
A plurality of battery cells stacked body which battery cells are stacked; A plurality of end plate surrounding at least a portion of the battery cell stack; And coupled to the plurality of end plates battery module including a support member for supporting the end plate.
[Claim 2]
The method of claim 1, is bent from each end of the plurality of end plates are provided with a first bend and a second bend portion is formed, the support member is part of the first bending of the plurality of end plates, and the battery module, characterized in that coupled to the second bent portion.
[Claim 3]
The method of claim 2, wherein the first and the first bending portion is formed with a first engaging projection, and the second bent part has a second engaging groove is formed, the support member has a first coupling groove coupled to the first engaging projection and a battery module wherein a second coupling protrusion is coupled to the second coupling groove is formed.
[Claim 4]
Of claim 3, wherein the first, coupled to the first coupling protrusion first engaging groove in the upper side of the first bent portion and the second engaging projection is to be coupled to the second coupling groove on the lower side and the second bent portion the battery module according to claim.
[Claim 5]
The method of claim 1, is provided with the end plate, the portion bent is formed is bent from an end portion, in the bent part is accommodated, and the groove forming portion, at least one of the housing is formed, both ends of the support member, wherein the receiving the receiving portion the battery module engaging portion that is inserted into the groove can be coupled, characterized in that each formed.
[Claim 6]
The method of claim 5, wherein the engaging portion is formed spaced apart from each other so as to face the opposite direction of the pair of battery module comprising the retaining ring.
[Claim 7]
7. The method of claim 6 wherein the retaining ring has a battery module characterized in that the inclined portion is formed for ease of insertion of the receiving groove.
[Claim 8]
The method of claim 6 wherein at least some cases, the battery module characterized in that the round portion is formed in the locking ring.
[Claim 9]
The first battery pack including a battery module according to any one of the preceding claims.
[Claim 10]
FAW including a battery module according to any one of the preceding claims.