【Technical field】

Mutual citation with the relevant application(s)

5 This application is 2018 years 1 Mon 26 Date of Korea Patent Application No. 10-2018-0010011 claims the benefit of priority based on the call, and all information disclosed in the literature of the Korea patent application are included as part of the specification.

The present invention relates to a battery module and a battery module assembly, and more particularly, to a structure in which electrical connection between battery modules is simplified in 10 configurations of one battery module assembly by combining two or more battery modules .

【Background description】

There is demand for secondary batteries as an energy source is rapidly increasing as the development of technology and the demand for mobile devices increases. Accordingly, to meet a variety of requirements 15 have been made many researchers on the number of secondary batteries.

Rechargeable batteries are attracting a lot of attention as an energy source for power devices such as electric bicycles, electric vehicles, and hybrid electric vehicles as well as mobile devices such as mobile phones, digital cameras and laptops.

For small devices such as mobile phones and cameras, one battery cell is packed and a small battery pack with 20 is used, but for mid- to large-sized devices such as notebook electric vehicles, several battery modules are connected in parallel and/or in series. A medium-sized or large-sized battery module assembly in which one assembly is formed by binding them together is being used.

This medium and large battery module assembly employs 25 busbars for electrical connection between battery modules . Conventionally, a bus bar connecting between battery modules was manufactured as a separate component from the battery module, and was assembled by inserting it between bolts formed on the battery module and tightening a nut. However, such a busbar assembly process acts as one cause of increasing the process time by reducing workability in manufacturing the battery module assembly.

30【Invention and detailed explanation】

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【Technical task】

The technical problem to be solved by the present invention is to improve workability and reduce process time in assembling a battery module assembly.

【Means to solve the problem】

5, the battery module according to an embodiment of the present invention, the module case and the installed at one side of the module case which incorporates a plurality of battery cells 1 input-output terminal and the second contains the input and output terminals and said first one input-output terminal is the The first module bus bar connected to at least one of the plurality of battery cells inside the module case is extended to extend to a position outside the module case.

The first input/output terminal has an indented portion at the end, and the indented portion is formed at the same height as the second input/output terminal, so when another battery module is disposed next to the battery module, the second input/output of the other battery module The terminal may be fitted into the recess of the first input/output terminal.

15 Further comprising a second module busbar connected to at least one of the plurality of battery cells , the second input/output terminal has a shape of a bolt including a body having a screw wire and a head connected thereto, the second The module busbar has a downwardly indented portion at the top, and the body of the second input/output terminal may be inserted into the indented portion of the second module busbar and exposed to the outside.

20 Further comprising a second module busbar connected to at least one of the plurality of battery cells , the second input/output terminal has a form of a nut having a terminal hole having a screw wire , and the second module busbar is at the top have recessed portions destined to the claim 2, the terminal hole of the input-output terminal wherein the second can be arranged so as to be exposed to the outside through the recess of the module to the bus bar and the terminal holes 25 can be further comprising a bolt that is fastened.

The first input line force terminal includes a first portion extending in a vertical direction and a second portion extending in a horizontal direction by bending at a right angle from the first portion , and the indentation portion is formed by being indented in a horizontal direction at the end of the second portion. Can be. The battery module assembly according to an embodiment of the present invention includes a module case having a plurality of battery cells incorporating 30 and a first input/output installed on one side of the module case. 2019/146962 1 »（：1^1{2019/000717

A first battery module including a terminal and a second input/output terminal ; A module case and is installed in the iljeuk claim that of the module case which incorporates a plurality of battery cells 1 mouth julryeok terminal and a second agent comprising a mouth julryeok terminal 2 includes a battery module, and wherein the first claim of the battery module 1 output terminal is the modules inside the case of the plurality of battery cells 5 at least one of and is connected with the first been made the module bus bar is extended, wherein the second claim of the battery module 2 is extended to the input-output terminal may be connected to each other. The first input/output terminal of the first battery module includes a first portion extending in a vertical direction and a second portion extending in a horizontal direction by bent at a right angle from the first portion , and the second portion is recessed in a horizontal direction from an end. 10 It may include formed indentations.

The first battery module and the second battery module further include a second module busbar connected to at least one of the plurality of battery cells, and the second input/output terminal of the first battery module and the second battery module The second input/output terminal has a shape of a bolt including a body having a screw wire and a head connected thereto. 15 The second module busbar has a downwardly indented portion at the top, and the second input/output of the first battery module The terminal or the body of the second input/output terminal of the second battery module may be inserted into the recessed portion of the second module busbar and exposed to the outside. Wherein the second claim of the battery module 2, the body of the input-output terminal is the first 1 second of the battery modules 1 , and fitted to the recess portion of the input-output terminal, wherein the secondIt may further include a nut fastened to the body of the second input and output 20 terminals of the battery module .

Wherein the second battery module is first connected with at least one of said plurality of electronic cells 2 wherein, further comprising a bar module bus 2, the battery module 2, input-output terminal has a form of a nut having a terminal aperture having a threaded said that one second module bus bar is the first to have portions depressed downward at the top of the second battery module 25, the second terminal is the first hole of the input-output terminal 2 may be arranged such that through the recess of the module bus bar exposed to the outside .

Wherein the second claim of the battery module 2, the terminal hole of the input-output terminal is the first 1 second of the battery modules 1 are arranged in recessed portions of the input and output terminals, wherein the second claim of the battery module 2 volts, which is fastened to the terminal hole of the input-output terminal It may further include.

30 The second battery module is connected to at least one of the plurality of battery cells 0 2019/146962 1 »（：1^1{2019/000717

A third module busbar is further included, wherein the first input/output terminal of the second battery module has a shape of a bolt including a body having a screw wire and a head connected thereto, and the third module busbar is lower at the top. The body of the first input/output terminal of the second battery module may be inserted into the indented portion of the third module 5 busbar and exposed to the outside.

The battery module assembly according to an embodiment of the present invention may include two or more of the first battery modules . In this case, the first battery modules are sequentially arranged adjacent to each other, and the second battery module may be arranged outside the outermost one of the first battery modules.

10 A device according to an embodiment of the present invention includes the battery module assembly described above.

【Effects of the Invention】

The battery module according to the embodiment of the present invention has a bus bar that can be connected with neighboring battery modules, thereby making it easy to combine battery modules.

15, and the number and time required for assembly can be reduced.

【Simple explanation of the drawing】

Figure 1 is a perspective view of a battery module assembly according to one embodiment of the invention eunbon. Figure 2 is a first perspective view of the battery module assembly in said membrane stage to the assembly of the battery module assembly of .

20 FIG. 3 is an enlarged perspective view of one battery module constituting the battery module assembly of FIG. 1 .

Figure 4 is a 3 is an exploded perspective view showing the arrangement structure of the left side cover and the module, the bus bar of the battery module.

Figure 5 is a battery module assembly according to another embodiment one of the present invention

25 is a perspective view.

Figure 6 is a 5 a perspective view of an electronic module assembly in a final step of assembling the battery modules in the assembly.

Figure 7 is a 5 is an enlarged perspective view of a battery modul constituting the battery module assembly of ASEM.

30 FIG. 8 shows the arrangement structure of the left cover of the battery module of FIG. 7 and the module bus bar. 2019/146962 1 »（：1^1{2019/000717

It is an exploded perspective view showing.

【Forms for the implementation of the invention】

Then, with reference to the accompanying drawings, the embodiments of the present invention can be easily implemented by those of ordinary skill in the technical field to which the present invention pertains.

5 Explain in detail to be able to. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

In the drawings, the thicknesses are enlarged to clearly express the various layers and regions . Throughout the specification, the same reference numerals are assigned to similar parts. 10 When a part such as a layer film, a region, or a plate is said to be "on" another part, this is not only a case where the other part is "directly above", but also in the middle. It includes cases where there are other parts. Conversely, when a part is said to be "right above" another part, it means that there is no other part in the middle.

Figure 1 is a perspective view of the battery module assembly according to one embodiment of the eunbon invention, Figure 2 is a first battery module in the last step of assembling the battery module assembly of 15 and is a perspective view of the assembly FIG. 3 is a 1, the battery module assembly of It is an enlarged perspective view of one constituting battery module, and FIG. 4 is an exploded perspective view showing an arrangement structure of a left cover and a module bus bar of the battery module of FIG. 3 .

Figure 1 to Figure 4 cell module assembly (in accordance with one embodiment of the invention Referring to the example 100) is in the side-by-side in close contact with each other 6 of battery modules ( 110, 120, 130, 20, 140, 150, 160) includes . Here, the number of battery modules 110, 120, 130, 140, 150, 160 may be adjusted as necessary. Each battery module ( 110, 120, 130, 140, 150, 160) includes a plurality of battery cells (not shown), and the plurality of battery cells are closely arranged in a predetermined arrangement, and are connected in series or parallel to each other And is housed in the module case.

25 The input/output terminal of any one of these battery cells is drawn out to the outside of the battery module through the module bus bar of the battery module ( 110, 120 , 130 , 140 , 150, 160) and is connected to a neighboring battery module, or It is used as input/output terminals of the module assembly 100 . Each battery module ( 110, 120, 130, 140, 150, 160) is first installed on the side of the module case one input-output terminal and the second present has an input-output terminal 30 In the one embodiment of the invention Example 1 expanded the input and output terminals the module bus bar ( 1) to

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Make up.

Among the battery modules 110, 120, 130, 140, 150, 160 , the remaining battery modules 120, 130, 140, 150, 160 except for the first battery module 110 are extended to connect to the neighboring right battery modules Module busbar ( 1) . The extended module 5 busbar ( 1) is that the module busbar connected to the terminal of the battery cell inside the battery module ( 120, 130, 140, 150, 160) extends in the vertical direction and then is bent at a right angle to extend in the horizontal direction. No. 1 serves as the input and output terminals, the right side of the battery module of its neighbors itself second teller terminal lock ( 2) is extended so that the structure can reach. The indented portion 11 is formed at the end of the expanded module busbar (1) , so that the second input/output terminal ( 2) of the battery module adjacent to the 10 indented portion ( 11 )Is inserted.

On the left side of the battery modules 110 , 120, 130, 140, 150, 160 , a second input/output terminal 2 is provided. The second input/output terminal 2 has a shape of a body having a threaded body and a bolt having a square head 21 . As shown in FIG . 4 , the low 12 input/output terminals 2 are connected to the module busbar 4 . Module bus bar ( 4) of the 15 top of the in this section and is recessed in a direction following the II-shaped second input-output terminal ( 2) is fitted to the body in. The second input-output terminal ( 2) is a square head ( 21) is It is fixed by pressing on the module bus bar ( 4) . Also extended module busbar ( 1) and module busbar (The lower part of 4) is covered by the side cover 101 and fixed.

The expansion module the bus bar (1) indentations of the 11 first of the battery modules that are adjacent second 20 input-output terminal ( 2) the nut (in the state sandwiched by 3) is the second input-output terminal ( 2) expanded and is fastened to the module, Solidify the connection between the bus bar ( 1) and the second input/output terminal ( 2) .

The first battery module 110 is disposed on the rightmost side of the battery module assembly 100, so there is no longer a battery module to be electrically connected. Therefore, the first battery module ( 110) of claim of 1 mouth julryeok terminal ( 8) comprises a second input terminal julryeok ( 2) as in the

It has the form of a body with 25 threads and a bolt with a square head. A first battery module ( 110) of claim of the first input-output terminal ( 8) is the bus bar module (which is connected to the internal battery module 5) is connected to the. The first battery module ( 110) of claim of the first input-output terminal ( 8) is a battery module assembly ( 100) is used as the input and output terminals of the.

The battery module of this structure do not use a separate bar bus 30, the bus bar module (extension without 1) the battery module adjacent a second output terminal ( 2) 2019/146962 to 1 » (1 ^ 1 {2019 /000717

By inserting and fixing it with nut 3), you can easily electrically connect the battery modules 110, 120, 130, 140, 150, 160) . Therefore, not only can the number of parts be reduced, but also the number of processes required for assembly can be reduced, thereby reducing the process time.

5 Figure 5 is according to another embodiment of the invention the battery module perspective view of the assembly and Figure 6. The silver 5 is a perspective view of the battery module assembly of the final stage of assembling the battery module assembly of FIG. 7 is an eight cell module assembly of It is an enlarged perspective view of one battery module constituting a, and FIG. 8 is an exploded perspective view showing the arrangement structure of the left cover and the module bus bar of the battery module of FIG. 7

10 in the embodiment of the above first two input-output terminals 2) has the form of a bolt, where the module bus bar extended by tightening the nut to 1) secure the structure or, that in the present embodiment, FIG. 5 to FIG. 8, shown in terminal holes as 6) the terminal nut having a 22) installed inside the battery module, and the bolt 7), the terminal hole 6) bar on modules bus by fastening to 1) fixed to and the second constituting the input-output terminal 15 form Have. As shown in Fig . 8 , the terminal nut 22) is placed inside the module bus bar 4) so that the terminal hole 6) is located at a position corresponding to the indentation of the expanded module bus bar 1) , and this terminal hole 6) By tightening the bolt 7) to the2 Configure input/output terminals.

When using a battery module of this structure, the battery module 110 is easily fixed by placing the 200,000 inlet of the expanded module busbar 1) in the terminal hole 6) of the adjacent battery module and fastening the bolt 7) to the terminal hole 6) . , 120, 130, 140, 150, 160) can be electrically connected. Therefore, not only the number of parts can be reduced, but also the number of processes required for assembly can be reduced, thereby reducing the process time.

25 The battery module assembly described above can be applied to various devices. It can be applied to a vehicle such as an electric bicycle electric vehicle hybrid, but is not limited thereto, and can be applied to various devices that can use a battery module assembly.

Although detailed description will be given of a preferred embodiment of the present invention at least 30 scope of the present invention is not limited thereto, and then 2019/146962 1> (part 1 '/ 1012019/000 717 in the claims

Various modifications of those skilled in the art using the basic concept of the present invention defined ^ improved form will also belong to the scope of the present invention.

【Explanation of code】

1: Expanded module busbar 11: Indentation

2: 2nd input/output terminal 8: 1st input/output terminal

5: 2nd module bus bar 3: Nut

6: Terminal hole 7: Bolt

110, 120, 130, 140, 150, 160: battery module

100： Battery module assembly

【Claim 1】

A module case containing a plurality of battery cells; And

Including a first input/output terminal and a second fifth input/ output terminal installed on one side of the module case ,

The first input/output terminal is a battery module in which a first module bus bar connected to at least one of the plurality of battery cells inside the module case is extended to extend to a position outside the module case.

【Claim 2】

10 In paragraph 1 ,

The first input/output terminal has a depression at its end, and the depression is formed at the same height as the second input/output terminal, so that when another battery module is disposed next to the battery module, the second input/output of the other battery module A battery module in which a terminal is inserted into the indentation of the first input/output terminal.

15 [Claim 3]

In paragraph 2 ,

Further comprising a second module bus bar connected to at least one of the plurality of battery cells ,

The second input/output terminal is connected to a body having a screw wire and

It has the shape of a bolt including 20 heads, and the second module busbar is at the top

A battery module having a downwardly indented portion, wherein the body of the second input/output terminal is inserted into the indented portion of the second module busbar and exposed to the outside.

[Claim 4]

Claim 2 in wherein

25 a second module connected to at least one of the plurality of battery cells

Including more bus bars,

The second input/output terminal has a shape of a nut having a terminal hole having a screw wire, and the second module busbar has a downwardly indented portion at an upper end, and a terminal hole of the second input/output terminal is formed of the second module busbar.

30 A battery module arranged to be exposed to the outside through an indentation.

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【Claim 5】

In paragraph 4,

Battery module further comprising a bolt fastened to the terminal hole.

【Claim 6】

5 claim 2 in wherein

Wherein the first mouth julryeok terminals extending first in the vertical direction first portion and the second one at a right angle from the portion kkeokyeoseo extending the horizontally 2 includes a portion and the recessed portion wherein the second cell is formed is recessed in the horizontal direction at the end of the part module.

[Claim 7]

10 A first battery module including a module case including a plurality of battery cells and a first input/output terminal and a second input/ output terminal installed on one side of the module case ;

A second battery module including a module case containing a plurality of battery cells and a first input/output terminal and a second input/ output terminal installed on one side of the module case

15 , wherein the first input/output terminal of the first battery module is the module

The inside of which the plurality of battery cells in the case connected to the at least one first been made the module bus bar is extended, wherein the second claim of the battery module 2, a battery module assembly, which is extended to the input and output terminals are connected to each other.

[Claim 8]

20 No. 7 in the section

A first input-output terminal of the first battery module extending first portion and the second vertically one at a right angle from the portion kkeokyeoseo extending the horizontally 2 includes a portion, and wherein the second is recessed in the horizontal direction from the end, the portion formed Battery module assembly including indentations.

25 [Claim 9]

In paragraph 8 ,

The first battery module and the second battery module further include a second module busbar connected to at least one of the plurality of battery cells ,

Wherein the first claim of the battery module 2, input-output terminal and wherein the second claim of the battery module 2

30 Input/output terminals include a body with a screw wire and a head connected to it.

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Has the form of a bolt, wherein the second module, the bus bar is the first to have portions depressed downward at the top of the first claim of the battery module 2, input and output terminals or the first two second battery module 2 is wherein the body of the input-output terminal 2, the module bus A battery module assembly that is inserted into the indentation of the bar and exposed to the outside.

5【Claim 10】

Claim 9 in the section

Wherein the second claim of the battery module 2, the body of the input-output terminal is the first one and fitted to the recess portion of the first input-output terminal of the battery module

The nut fastened to the body of the second input/output terminal of the second battery module

Battery module assembly further comprising 10 .

【Claim 11】

Claim 8 in the section

The second battery module further comprises a second module bus bar connected to at least one of the plurality of battery cells ,

15 wherein the second agent of the battery module 2, input-output terminal has a form of a nut having a terminal hole having a thread, wherein the second module, the bus bar is the first to have portions depressed downward at the top of the second claim of the battery module 2, input-output terminal A battery module assembly in which the terminal hole of the second module is exposed to the outside through the indentation of the bus bar

20【Claim 12】

In paragraph 11,

Wherein the second claim of the battery module 2, the terminal hole of the input-output terminal is the first 1 second of the battery modules 1 are arranged in recessed portions of the input and output terminals,

Fastened to the terminal hole of the second input/output terminal of the second battery module

Battery module assembly containing an additional 25 volts.

【Claim 13】

In paragraph 8 ,

The second battery module further includes a third module busbar connected to at least one of the plurality of battery cells,

30 The first input/output terminal of the second battery module is connected to a body having a screw wire and

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It has a shape of a bolt including a connected head, and the third module busbar has a downward indentation at the top, and the body of the first input/output terminal of the second battery module is indentation of the third module busbar. Battery module assembly inserted into the part and exposed to the outside.

5【Claim 14】

In paragraph 13 ,

Wherein the first battery module 2 includes one or more, wherein the first battery module are arranged to be adjacent in sequence and wherein the second battery module wherein the first battery module is disposed on the outside of what is located outermost of the battery module 10 assembly.

【Claim 15】

A device comprising the battery module assembly of claim 7 .