阅读说明：本技术 电池模组、电池箱及电池包 (Battery module, battery box and battery pack ) 是由 温金辉 王建立 王新锋 于 2021-08-26 设计创作，主要内容包括：本发明公开一种电池包,包括电池箱与电池模组；电池箱中设有用于承载电池模组的支撑骨架,支撑骨架上设有若干销孔,电池模组设有若干与销孔配合的销柱,电池箱中还设有两个抵接电池模组的顶端的限位横梁,两个限位横梁用于；电池模组包括第一电池组件、与第一电池组件并排串联的第二电池组件以及隔板组件,第一电池组件与第二电池组件分别由不同数量的模块单元串联组成,且第一电池组件与第二电池组件的一端对齐并串联连接,隔板组件覆盖第一电池组件与第二电池组件中被显露的侧面。与现有技术相比,有益效果在于：设有支撑骨与限位横梁,方便电池模组的拆装,并设有隔板组件来保护电池模组,可以提高安全性。(The invention discloses a battery pack, which comprises a battery box and a battery module; the battery box is internally provided with a support framework for bearing the battery module, the support framework is provided with a plurality of pin holes, the battery module is provided with a plurality of pin columns matched with the pin holes, and the battery box is also internally provided with two limiting cross beams which are abutted against the top end of the battery module and used for limiting the position of the battery module; the battery module comprises a first battery assembly, a second battery assembly and a partition plate assembly, wherein the second battery assembly is connected with the first battery assembly in parallel and in series, the first battery assembly and the second battery assembly are respectively formed by connecting different numbers of module units in series, one end of the first battery assembly is aligned with one end of the second battery assembly and is connected with the second battery assembly in series, and the partition plate assembly covers the exposed side faces of the first battery assembly and the second battery assembly. Compared with the prior art, beneficial effect lies in: be equipped with support bone and spacing crossbeam, make things convenient for battery module's dismouting to be equipped with the baffle subassembly and protect battery module, can improve the security.)

1. A battery pack, comprising: comprises a battery box and a battery module;

the battery box is internally provided with a support framework for bearing the battery module, the support framework is provided with a plurality of pin holes, a plurality of pin columns which are matched with the pin holes one by one are arranged at two ends of the battery module, and the battery box is also internally provided with two limiting cross beams which are used for abutting against the top end of the battery module;

the battery module comprises a first battery assembly, a second battery assembly and a separator assembly, wherein the second battery assembly is connected with the first battery assembly in parallel and in series; the first battery assembly and the second battery assembly are respectively formed by connecting different numbers of module units in series, and one ends of the first battery assembly and the second battery assembly are aligned and connected in series;

the separator assembly comprises a bottom frame and a cover plate, the bottom frame is used for bearing the first battery assembly and the second battery assembly and covering the bottoms of the first battery assembly and the second battery assembly and exposed sides of the first battery assembly and the second battery assembly, and the cover plate is arranged on the tops of the first battery assembly and the second battery assembly and used for covering the tops of the first battery assembly and the second battery assembly.

2. The battery pack according to claim 1, wherein the support frame includes two first frames and two second frames, the first frames are disposed along a width direction of the case and provided with the pin holes, and at least one third frame is further disposed between the two second frames.

3. The battery pack according to claim 2, wherein a bottom support for supporting the battery module is further arranged in the battery box, a plurality of limiting strips are further arranged on one side of the bottom support, which faces away from the battery module, and the limiting strips are arranged along the length direction of the box body and abut against the space between two adjacent third frameworks or the space between one adjacent third framework and one first framework.

4. The battery pack of claim 1, wherein the battery module further comprises the end cap assembly, the end cap assembly comprises a positive end cap, a negative end cap, and a transit end cap, the transit end cap is disposed at a serial connection position of the first battery assembly and the second battery assembly, and the positive end cap and the negative end cap are respectively disposed at ends of the first battery assembly and the second battery assembly far away from the transit end cap.

5. The battery pack according to claim 4, wherein the end cap assembly further comprises a plurality of fixing posts, and the same number of fixing posts are respectively connected between the positive end cap and the transit end cap and between the negative end cap and the transit end cap, and each fixing post passes through the first battery assembly or the second battery assembly and fixes the first battery assembly and the second battery assembly between the positive end cap and the transit end cap and between the negative end cap and the transit end cap; the first battery assembly or the second battery assembly is respectively provided with a plurality of fixing holes for the fixing columns to penetrate through.

6. The battery pack according to claim 1, wherein each module unit comprises a pair of battery frames, a plurality of single batteries fixed between the pair of battery frames, and a pair of bus assemblies, the battery frames are provided with a plurality of first through holes and a plurality of second through holes, each first through hole is used for fixing one end of one single battery, each second through hole is used for a fixing column to pass through, and the pair of bus assemblies are respectively arranged on the sides of the pair of battery frames far away from each other and used for electrically connecting the single batteries; each current collecting assembly comprises a current collecting plate and at least two current conducting plates, each current conducting plate is electrically connected with the positive electrodes or the negative electrodes of two adjacent rows of single batteries, and the current collecting plates connect all the current conducting plates in parallel.

7. The battery pack according to claim 6, wherein the conductive plate comprises a main body part and a plurality of conductive parts formed by extending two sides of the main body part, each conductive part is electrically connected with the positive electrode or the negative electrode of one single battery, and each conductive part is further provided with a welding seam hole for welding; the current-collecting plate is fixed on one side of the corresponding battery frame, which deviates from the corresponding single battery, the current-conducting plate is fixed on one side of the corresponding current-collecting plate, which deviates from the corresponding battery frame, and a plurality of via holes for the conduction part to pass through are formed in the current-collecting plate.

8. The battery pack according to claim 7, wherein one end of each bus bar extends beyond the top end of the corresponding battery holder and extends in the longitudinal direction of the unit batteries to form a terminal plate, and two adjacent module units are connected in series by laminating the two terminal plates on the two bus bars.

9. The battery pack of claim 1, further comprising a collection module, wherein two mounting seats are arranged in the battery box, and the collection module is suspended and fixed above the battery module by the two mounting seats.

10. The battery pack according to claim 1, wherein a communication port, a connection port and an explosion-proof valve are embedded in the battery box, and the communication port, the connection port and the explosion-proof valve are all located above the battery module.

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of batteries, in particular to a battery module, a battery box and a battery pack.

[ background of the invention ]

At present, because lithium ion battery has the voltage height, the capacity is big, small, the quality is light, operating temperature range advantage such as wide, by the wide application in electric vehicle field, electric vehicle generally adopts the battery module to drive, the battery module adopts secondary battery to constitute usually, can the battery produce a large amount of heats when using, if the battery module current abnormity then leads to the high temperature easily, thereby arouse the incident, consequently the reliability of electricity connection must be guaranteed to the battery module after being in groups.

However, in the prior art, after the battery module is installed in the battery box, the electrical connection members on the battery module are not specially protected, and the electrical connection members are generally exposed in the battery box, so that the installation and the disassembly of the battery module are not facilitated, and foreign matters can easily enter the battery module to influence the stability of the electrical connection.

In view of the above, it is desirable to provide a battery module, a battery box and a battery pack to overcome the disadvantages of the prior art.

[ summary of the invention ]

The invention aims to provide a battery pack, which aims to conveniently improve the safety and the assembly performance.

In order to achieve the above object, the present invention provides a battery pack, which includes a battery box and a battery module; the battery box is internally provided with a support framework for bearing the battery module, the support framework is provided with a plurality of pin holes, a plurality of pin columns which are matched with the pin holes one by one are arranged at two ends of the battery module, and the battery box is also internally provided with two limiting cross beams which are used for abutting against the top end of the battery module; the battery module comprises a first battery assembly, a second battery assembly and a separator assembly, wherein the second battery assembly is connected with the first battery assembly in parallel and in series; the first battery assembly and the second battery assembly are respectively formed by connecting different numbers of module units in series, and one ends of the first battery assembly and the second battery assembly are aligned and connected in series; the separator assembly comprises a bottom frame and a cover plate, the bottom frame is used for bearing the first battery assembly and the second battery assembly and covering the bottoms of the first battery assembly and the second battery assembly and exposed sides of the first battery assembly and the second battery assembly, and the cover plate is arranged on the tops of the first battery assembly and the second battery assembly and used for covering the tops of the first battery assembly and the second battery assembly.

As an improvement of the battery pack, the support framework comprises two first frameworks and two second frameworks, the first frameworks are arranged along the width direction of the box body and provided with the pin holes, and at least one third framework is arranged between the two second frameworks.

As an improvement of the battery pack, a bottom support for supporting the battery module is further arranged in the battery box, a plurality of limiting strips are further arranged on one side of the bottom support, which is far away from the battery module, and the limiting strips are arranged along the length direction of the box body and abut against the space between two adjacent third frameworks or the space between one adjacent third framework and one first framework.

As an improvement of the battery pack of the present invention, the battery module further includes the end cap assembly, the end cap assembly includes a positive end cap, a negative end cap and a transit end cap, the transit end cap is installed at a serial connection position of the first battery assembly and the second battery assembly, and the positive end cap and the negative end cap are respectively installed at ends of the first battery assembly and the second battery assembly far away from the transit end cap.

As an improvement of the battery pack of the present invention, the end cap assembly further includes a plurality of fixing posts, and the same number of fixing posts are respectively connected between the positive end cap and the transfer end cap and between the negative end cap and the transfer end cap, each fixing post penetrates through the first battery assembly or the second battery assembly, and the first battery assembly and the second battery assembly are respectively fixed between the positive end cap and the transfer end cap and between the negative end cap and the transfer end cap; the first battery assembly or the second battery assembly is respectively provided with a plurality of fixing holes for the fixing columns to penetrate through.

As an improvement of the battery pack of the present invention, each module unit includes a pair of battery racks, a plurality of single batteries fixed between the pair of battery racks, and a pair of bus assemblies, wherein the battery racks are provided with a plurality of first through holes and a plurality of second through holes, each first through hole is used for fixing one end of one single battery, each second through hole is used for passing a fixing column, and the pair of bus assemblies are respectively disposed on the sides of the pair of battery racks far away from each other and are used for electrically connecting the single batteries; each current collecting assembly comprises a current collecting plate and at least two current conducting plates, each current conducting plate is electrically connected with the positive electrodes or the negative electrodes of two adjacent rows of single batteries, and the current collecting plates connect all the current conducting plates in parallel.

As an improvement of the battery pack, the conductive plate comprises a main body part and a plurality of conductive parts formed by extending two sides of the main body part, each conductive part is electrically connected with the anode or the cathode of one single battery, and each conductive part is also provided with a welding seam hole for welding; the current-collecting plate is fixed on one side of the corresponding battery frame, which deviates from the corresponding single battery, the current-conducting plate is fixed on one side of the corresponding current-collecting plate, which deviates from the corresponding battery frame, and a plurality of via holes for the conduction part to pass through are formed in the current-collecting plate.

As an improvement of the battery pack, one end of each bus bar extends out of the top end of the corresponding battery frame and then extends along the length direction of the single battery to form a wiring board, and two adjacent module units are connected in series through two wiring boards on two laminated bus bars.

The battery pack further comprises an acquisition module, two mounting seats are arranged in the battery box, and the acquisition module is fixed above the battery module in a hanging mode through the two mounting seats.

As an improvement of the battery pack, a communication port, a wiring port and an explosion-proof valve are embedded in the battery box, and the communication port, the wiring port and the explosion-proof valve are all positioned above the battery module.

Compared with the prior art, the battery pack has the beneficial effects that: be equipped with support bone and spacing crossbeam, make things convenient for battery module's dismouting to be equipped with the baffle subassembly and protect battery module, can improve the security.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of a battery pack according to the present invention.

Fig. 2 is an exploded perspective view of the battery case shown in fig. 1.

Fig. 3 is a perspective view of the case shown in fig. 1.

Fig. 4 is a top view of the case shown in fig. 1.

Fig. 5 is an exploded perspective view of the battery module shown in fig. 1.

Fig. 6 is an exploded perspective view of the module unit shown in fig. 1.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1, the present invention provides a battery pack 100, wherein the battery pack 100 includes a battery module 1 and a battery box 2 for accommodating the battery module 1.

In an embodiment of the present invention, referring to fig. 4 to fig. 6, the battery module 1 includes a first battery assembly 12, a second battery assembly 13 connected in series with the first battery assembly 12, an end cap assembly 14, and a separator assembly 15.

The first battery assembly 12 and the second battery assembly 13 are respectively formed by connecting different numbers of module units 10 in series, and one ends of the first battery assembly 12 and the second battery assembly 13 are aligned and connected in series. In this embodiment, the number of the module units 10 of the first battery assembly 12 is greater than the number of the block units of the second battery assembly 13, so that the first battery assembly 12 is greater than the second battery assembly 13 in length and forms a gap at the positive and negative electrodes of the battery module 1, and the gap can be used for placing other components on the battery pack 100.

The end cap assembly 14 includes a positive end cap 141, a negative end cap 142 and a relay end cap 143, the relay end cap 143 is installed at a serial connection position of the first battery assembly 12 and the second battery assembly 13, and the positive end cap 141 and the negative end cap 142 are respectively installed at one ends of the first battery assembly 12 and the second battery assembly 13 far away from the relay end cap 143, that is, one ends of the first battery assembly 12 and the second battery assembly 13 far away from the relay end cap 143 are respectively used as a positive electrode and a negative electrode of the battery module 1.

The partition assembly 15 includes a bottom frame 151 and a cover plate 152, the bottom frame 151 is used for carrying the first battery assembly 12 and the second battery assembly 13 and covering the bottom of the first battery assembly 12 and the second battery assembly 13 and the exposed side of the first battery assembly 12 and the second battery assembly 13, the cap plate 152 is disposed on the top of the first battery assembly 12 and the second battery assembly 13 and serves to cover the top of the first battery assembly 12 and the second battery assembly 13, that is, the separator assembly 15 is used to wrap the periphery of the first battery assembly 12 and the second battery assembly 13, to prevent the conductive components on the first battery assembly 12 and the second battery assembly 13 from being exposed, thereby functioning to protect the first battery assembly 12 and the second battery assembly 13. In this embodiment, the bottom frame 151 may include a bottom plate 1511 and three side plates 1512 erected on the bottom plate 1511, the bottom plate 1511 is configured to carry the first battery assembly 12 and the second battery assembly 13 and to completely cover the bottoms of the first battery assembly 12 and the second battery assembly 13, the three side plates 1512 are respectively disposed on the sides of the first battery assembly 12 and the second battery assembly 13 exposed outside, and the cover plate 152 is disposed on the tops of the first battery assembly 12 and the second battery assembly 13 and to completely cover the tops of the first battery assembly 12 and the second battery assembly 13.

In one embodiment, the end cap assembly 14 further includes a plurality of fixing posts 144, and the same number of fixing posts 144 are respectively connected between the positive end cap 141 and the intermediate end cap 143 and between the negative end cap 142 and the intermediate end cap 143, each fixing post 144 penetrates through the first battery assembly 12 or the second battery assembly 13, and fixes the first battery assembly 12 and the second battery assembly 13 between the positive end cap 141 and the intermediate end cap 143 and between the negative end cap 142 and the intermediate end cap 143, for this reason, the first battery assembly 12 or the second battery assembly 13 is respectively provided with a plurality of fixing holes for the fixing posts 144 to penetrate through.

Specifically, each module unit 10 includes a pair of battery frames 101 and a plurality of unit batteries 102 fixed between the pair of battery frames 101, and the battery frames 101 are provided with a plurality of first through holes 1011 and a plurality of second through holes 1012. Each first through hole 1011 is used for fixing one end of one battery cell 102, for this reason, the battery frame 101 is provided with a plurality of limit blocks 1013 for abutting against the battery cells 102 around each first through hole 1011, and the limit blocks 1013 on each module unit 10 are respectively arranged on the sides of the corresponding pair of battery frames 101 far away from each other for abutting against the positive pole and the negative pole of the corresponding battery cell 102; each second through hole 1012 is penetrated by one fixing post 144, that is, the fixing holes of the first battery assembly 12 and the second battery assembly 13 are respectively formed by the second through holes 1012 of the corresponding module unit 10.

In this embodiment, the single battery 102 is a cylindrical lithium ion battery, the fixing column 144 is cylindrical, and the fixing column 144 and the single battery 102 have the same outer diameter, and correspondingly, the first through hole 1011 and the second through hole 1012 are circular holes having the same inner diameter.

In one embodiment, each module unit 10 further includes a pair of bus bars 103, and the pair of bus bars 103 are respectively disposed at sides of the corresponding pair of cell holders 101 that are away from each other and serve to electrically connect the corresponding unit cells 102. In order to improve the current collecting effect, each current collecting assembly 103 includes a current collecting plate 104 and at least two current conducting plates 105, each current conducting plate 105 is electrically connected to the positive electrode or the negative electrode of two adjacent rows of the single batteries 102 to connect the two adjacent rows of the single batteries 102 in parallel, that is, at least four rows of the single batteries 102 are included on each module unit 10, and the current collecting plate 104 connects all the current conducting plates 105 in parallel.

Further, the conductive plate 105 is made of a nickel plate, the conductive plate 105 includes a main body portion 1051 and a plurality of conductive portions 1052 formed by extending two sides of the main body portion 1051, each conductive portion 1052 is electrically connected to a positive electrode or a negative electrode of one single battery 102, here, in order to ensure the stability of the electrical connection, each conductive portion 1052 is welded and fixed to the positive electrode or the negative electrode of one single battery 102, and therefore, a welding seam hole 1053 for welding is further formed on each conductive portion 1052.

Further, the bus bar 104 is fixed on a side of the corresponding battery frame 101 away from the corresponding battery cell 102, and the conductive plate 105 is fixed on a side of the corresponding bus bar 104 away from the corresponding battery frame 101, for this reason, a plurality of through holes 1041 through which the conductive portions 1052 pass are opened on the bus bar 104, and because a certain height difference exists between the main portion 1051 of the conductive plate 105 and the corresponding battery cell 102, one end of each conductive portion 1052 close to the corresponding main portion 1051 is bent to form a connecting portion 1054 vertically connected between the conductive portion 1052 and the corresponding main portion 1051, and the height difference between the main portion 1051 and the corresponding battery cell 102 is offset by the connecting portion 1054, so that the conductive portion 1052 can abut against a positive electrode or a negative electrode of the corresponding battery cell 102 to smoothly complete welding and fixing.

Further, in order to facilitate the series connection between two module units 10, one end of each bus bar 104 extends out of the top end of the corresponding battery frame 101 and then extends along the length direction of the single battery 102 to form a connection plate 1042, and the two bus bars 104 on each module unit 10 have different extending heights, so that the two adjacent module units 10 are connected in series by stacking the two connection plates 1042 on the two bus bars 104. Preferably, each of the wiring boards 1042 is further provided with a plurality of connection holes 1043, and screws pass through the connection holes 1043 to tightly fix the two laminated wiring boards 1042 together, so as to ensure the stability of electrical connection. Here, the wiring board 1042 can also be used to fix the cover plate 152, and the wiring board 1042 allows a certain gap to be provided between the cover plate 152 and the module unit 10, so that the wiring can be conveniently routed, for example, a wiring harness for detecting the unit battery 102 can be placed through a space between the cover plate 152 and the module unit 10.

In summary, in the battery module 1 provided by the present invention, the first battery assembly 12 and the second battery assembly 13 are formed by different numbers of module units 10, and then the first battery assembly 12 and the second battery assembly 13 are connected in series to form the battery module 1 with the notch, so that the battery module 1 has a sufficient space for installing other components, and meanwhile, the separator assembly 15 is further provided, and the exposed portions of the first battery assembly 12 and the second battery assembly 13 are covered by the separator assembly 15 through the bottom frame 151 and the cover plate 152, so that all exposed conductive components on the battery module 1 are shielded, and thus the safety of the battery pack 100 can be improved.

In an embodiment of the present invention, referring to fig. 2 to fig. 4, the battery box 2 includes a box body 21, a box cover 23 covering the box body 21, and a sealing member 24 press-fitted between the box body 21 and the box cover 23.

The box body 21 includes a bottom wall 211 and a side wall 212 extending from an edge of the bottom wall 211, an accommodating space 213 is defined between the bottom wall 211 and the side wall 212, the accommodating space 213 is used for accommodating the battery module 1, a plurality of sealing studs 2121 are embedded in one end of the side wall 212 away from the bottom wall 211, a plurality of sealing bolts 2301 matched with the sealing studs 2121 one by one are arranged on the box cover 23 in a penetrating manner, a plurality of sealing holes 2401 for the sealing bolts 2301 to pass through are arranged on the sealing element 24, the sealing bolts 2301 pass through the sealing holes 2401 to form a matching with the sealing studs 2402121 and fix the box cover 23 on the box body 21, and the sealing element 24 is pressed between the box body 21 and the box cover 23.

In this embodiment, the case cover 23 may be made of an aluminum alloy material, and has good mechanical strength and good thermal conductivity, so as to provide heat dissipation of the battery pack. The tank 21 may be made of an insulating plastic material, for example, the tank 21 may be made of an insulating and antistatic PP material.

Further, the bottom wall 211 of the box body 21 is provided with a supporting framework 25 for supporting the battery module 1, the supporting framework 25 is used for improving the mechanical strength of the box body 21, the supporting framework 25 is provided with a plurality of pin holes 2501, the pin holes 2501 also play a role in fixing and limiting the battery module 1 so as to prevent the battery module 1 from moving in the box body 21, correspondingly, the battery module 1 is provided with a plurality of pins 1401 which are matched with the pin holes 2501 one by one, and here, the pins 1401 are arranged on the end cover assembly 14, that is, the positive end cover 141, the negative end cover 142 and the transfer end cover 143 are respectively provided with a certain number of pins 1401.

In this embodiment, the box 21 is a cuboid, the edge of the supporting framework 25 abuts against the joint of the bottom wall 211 and the side wall 212, the supporting framework 25 includes two first frameworks 251 and two second frameworks 252, the first frameworks 251 are arranged along the width direction of the box 21 and are provided with the pin holes 2501, the second frameworks 252 are arranged along the length direction of the box 21, and at least one third framework 253 is further arranged between the two second frameworks 252 for improving the bearing capacity.

Preferably, a bottom support 26 for supporting the battery module 1 is further arranged in the box body 21, a plurality of limiting strips 2601 are further arranged on one side of the bottom support 26 away from the battery module 1, the limiting strips 2601 are arranged along the length direction of the box body 21 and abut against the space between two adjacent third frameworks 253 or the space between one adjacent third framework 253 and one first framework 251, and thus, the stability of fixing the battery module 1 can be further improved through the limiting strips 2601.

Further, the box body 21 is provided with two limiting beams 27 on the side wall 212, and the two limiting beams 27 are used for abutting against the top end of the battery module 1, so that the battery module 1 cannot jump on the box body 21. Here, two limiting beams 27 are oppositely arranged and arranged along the length of the box body 21 to ensure the limiting effect of the limiting beams 27 on the battery module 1.

Further, the battery pack 100 further comprises an acquisition module 3, the acquisition module 3 is installed in the accommodating space 213 of the box 21 and electrically connected with the battery module 1, and the acquisition module 3 is used for acquiring the temperature, voltage and current information of the battery module 1 in real time so as to control the working state of the battery module 1, thereby preventing the battery module 1 from generating the phenomenon of overhigh temperature or overhigh current.

In this implementation, the box body 21 is provided with two mounting seats 28 on the side wall 212, the two ends of the acquisition module 3 are respectively fixedly connected with the two mounting seats 28 and then suspended and fixed above the battery module 1, and meanwhile, the acquisition module 3 is close to the notch of the battery module 1, so that the acquisition module 3 is convenient to connect the bus board 104 on the battery module 1 and acquire the working state of the battery module 1.

Further, a communication port 2122, a wiring port 2123 and an explosion-proof valve 2124 are embedded in the side wall 212, and the communication port 2122, the wiring port 2123 and the explosion-proof valve 2124 are all located above the battery module 1, so as to fully benefit the remaining space in the box 21. Meanwhile, the side wall 212 is provided with a plurality of handles 2125 for carrying.

In summary, the battery box 2 provided by the invention increases the mechanical strength of the box body 21 through the support frame 25, and then limits the lateral movement of the battery module 1 through the matching of the pin holes 2501 and the pins 1401 and the matching of the bottom support 26 and the support frame 25, and then limits the longitudinal movement of the battery module 1 through the limiting cross beam 27, so that the battery module 1 is not only convenient to mount and dismount, but also the battery module 1 is more stable and reliable to fix, and the safety and maintainability of the battery pack 100 are further increased.

The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.