Battery box and battery pack

Abstract

The application relates to the technical field of batteries, and discloses a battery box and a battery pack. The battery box comprises a lower box body, and a cover plate connected to the lower box body. One end of the cover plate is bent to form a bent edge. An accommodating groove for accommodating a low-voltage wire harness is formed between the bent edge and the lower box body, so that the low-voltage wire harness can pass through the accommodating groove. The bent edge is used for limiting and protecting the low-voltage wire harness. The low-voltage wire harness can be provided with a support structure, and can be protected. The wiring of the low-voltage wire harness is facilitated, that is, the low-voltage wire harness can be wired according to a relatively fixed position, the wiring efficiency of the battery box is improved, and the use performance of the battery box is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery box and a battery pack. BACKGROUND

[0002] In the related art, the battery box is used to accommodate a battery assembly formed by a plurality of batteries to achieve the protection of the batteries. The battery assembly is connected with a plurality of wire harness assemblies to achieve different connection requirements. However, due to the structural limitation of the battery box itself, there is a problem of inconvenient wire harness assembly wiring. SUMMARY

[0003] The present application provides a battery box and a battery pack to improve the use performance of the battery box.

[0004] According to a first aspect of the present application, a battery box is provided, comprising:

[0005] a lower box;

[0006] a cover plate connected to the lower box, one end of the cover plate being bent to form a bent edge, and a containing groove for accommodating a low-voltage wire harness being formed between the bent edge and the lower box.

[0007] The battery box of one embodiment of the present application comprises a lower box and a cover plate connected to the lower box. By bending one end of the cover plate to form a bent edge, a containing groove for accommodating a low-voltage wire harness is formed between the bent edge and the lower box. Thus, the bent edge can be used for the low-voltage wire harness to pass through, so that the low-voltage wire harness is protected by the bent edge. Not only can the low-voltage wire harness be provided with a support structure, but also can be protected, and the wiring of the low-voltage wire harness can be facilitated, i.e., the low-voltage wire harness can be wired according to a relatively fixed position, improving the wiring efficiency of the battery box, and thus improving the use performance of the battery box.

[0008] According to a second aspect of the present application, a battery pack is provided, comprising the above-mentioned battery box.

[0009] The battery box of the battery pack of one embodiment of the present application comprises a lower box and a cover plate connected to the lower box. By bending one end of the cover plate to form a bent edge, a containing groove for accommodating a low-voltage wire harness is formed between the bent edge and the lower box. Thus, the bent edge can be used for the low-voltage wire harness to pass through, so that the low-voltage wire harness is protected by the bent edge. Not only can the low-voltage wire harness be provided with a support structure, but also can be protected, and the wiring of the low-voltage wire harness can be facilitated, i.e., the low-voltage wire harness can be wired according to a relatively fixed position, improving the wiring efficiency of the battery box, and thus improving the use performance of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0010] For a better understanding of the present disclosure, reference can be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements can be omitted in order to emphasize and clarify the technical features of the present disclosure. In addition, related elements or components can have different settings as known in the art. Furthermore, in the drawings, the same reference numerals represent the same or similar components throughout the various drawings.

[0011] wherein:

[0012] Figure 1 is a structural schematic diagram of one perspective of a battery pack according to an exemplary embodiment;

[0013] Figure 2 is a structural schematic diagram of another perspective of a battery pack according to an exemplary embodiment;

[0014] Figure 3 is an exploded structural schematic diagram of a battery pack according to an exemplary embodiment;

[0015] Figure 4 is a partially exploded structural schematic diagram of a battery pack according to an exemplary embodiment;

[0016] Figure 5 is a partial structural schematic diagram of one perspective of a cover plate of a battery pack according to an exemplary embodiment;

[0017] Figure 6 is a partial structural schematic diagram of another perspective of a cover plate of a battery pack according to an exemplary embodiment.

[0018] The reference numerals are explained as follows:

[0019] 10, lower box body; 11, bottom plate; 12, main frame; 121, side plate; 122, first end plate; 123, second end plate; 20, cover plate; 21, folded edge; 211, first section; 212, second section; 22, accommodating groove; 23, butt joint flange; 24, through hole; 30, battery assembly; 31, single battery; 40, BMS battery management module; 41, low-voltage wire harness; 50, high-voltage connector; 51, high-voltage wire harness. DETAILED DESCRIPTION

[0020] The technical solutions in the example embodiments of the present disclosure will be described clearly and completely below in combination with the drawings in the example embodiments of the present disclosure. The example embodiments described herein are only for illustrative purposes, and are not used to limit the protection scope of the present disclosure, so it should be understood that various modifications and changes can be made to the example embodiments without departing from the protection scope of the present disclosure.

[0021] In the description of the present disclosure, unless explicitly specified and limited, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more; the term "and / or" includes any combination and all combinations of one or more associated listed items. In particular, referring to "the" object or "one" object is also intended to represent one of the possible multiple such objects.

[0022] Unless otherwise specified or explained, the terms "connection", "fixation" and the like should be interpreted broadly, for example, "connection" can be fixed connection, or detachable connection, or integrally connected, or electrically connected, or signal connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0023] Further, in the description of the present disclosure, it should be understood that the orientation terms "upper", "lower", "inner", "outer" and the like described in the example embodiments of the present disclosure are described from the angle shown in the drawings, and should not be understood as limiting the example embodiments of the present disclosure. It should also be understood that in the context, when referring to one element or feature connected to another element (one or more) "on", "under", or "inside", "outside", it can not only be directly connected to another element (one or more) "on", "under", or "inside", "outside", but also indirectly connected to another element (one or more) "on", "under", or "inside", "outside" through an intermediate element.

[0024] One embodiment of the present application provides a battery box, please refer to Figures 1 to 6 The battery box comprises a lower box 10; a cover plate 20 connected to the lower box 10, one end of the cover plate 20 is bent to form a folded edge 21 for the low-voltage wire harness to pass through, and the folded edge 21 and the lower box 10 form a containing groove 22 for containing the low-voltage wire harness.

[0025] The battery box of one embodiment of the present application comprises a lower box 10 and a cover plate 20 connected to the lower box 10. By bending one end of the cover plate 20 to form a folded edge 21, a containing groove 22 for containing the low-voltage wire harness is formed between the folded edge 21 and the lower box 10, so that the folded edge 21 can be used for the low-voltage wire harness to pass through. In this way, the folded edge 21 can be used to limit and protect the low-voltage wire harness, which can not only provide a support structure for the low-voltage wire harness, but also form protection for the low-voltage wire harness, and facilitate the wiring of the low-voltage wire harness, i.e. ensure that the low-voltage wire harness can be wired according to a relatively fixed position, improve the wiring efficiency of the battery box, and thus improve the use performance of the battery box.

[0026] It should be noted that the low-voltage wire harness can be used to connect the battery and the BMS battery management module, and the BMS battery management module can be located outside the battery box, therefore, part of the low-voltage wire harness can be led out from the inside of the battery box to facilitate connection with the BMS battery management module, in the embodiment, the folding edge 21 is formed by bending one end of the cover plate 20, so that the low-voltage wire harness led out from the inside of the battery box can pass through the folding edge 21 to form a connection with the BMS battery management module, which not only allows the low-voltage wire harness to be routed according to the predetermined path, but also facilitates the connection of the low-voltage wire harness located outside the battery box with the BMS battery management module, thereby improving the installation efficiency of the battery pack.

[0027] As shown in Figure 1 The folding edge 21 and the lower box 10 form a containing groove 22 for accommodating the low-voltage wire harness, which not only stores the low-voltage wire harness, but also limits the low-voltage wire harness, thereby ensuring that the low-voltage wire harness reliably passes through the containing groove 22 and avoids position deviation of the low-voltage wire harness, thereby ensuring that the low-voltage wire harness can be reliably connected with the BMS battery management module.

[0028] It should be noted that the containing groove 22 is formed on the outside of the battery box, that is, the opening of the containing groove 22 can be connected with the outside.

[0029] In one embodiment, the containing groove 22 is located on the inside of the lower box 10, that is, the folding edge 21 is located on the inside of the lower box 10, which not only facilitates the connection of the cover plate 20 and the lower box 10, but also avoids increasing the space occupancy of the battery box by the folding edge 21, thereby optimizing the structure of the battery box to the greatest extent, and also facilitating the routing of the wire harness.

[0030] The containing groove 22 is located on the inside of the lower box 10, that is, the containing groove 22 can be formed between the folding edge 21 and the inner wall of the lower box 10.

[0031] It should be noted that in some embodiments, the containing groove 22 can be located on the outside of the lower box 10, that is, the folding edge 21 can form the containing groove 22 with the outer wall of the lower box 10.

[0032] In one embodiment, the folding edge 21 can be bent downward relative to one end of the cover plate 20, for example, the folding edge 21 can be a flat plate, and the flat plate is bent downward relative to one end of the cover plate 20 and is located opposite a part of the lower box 10, thereby forming a containing groove 22 in a substantially U shape, thereby achieving limiting protection of the low-voltage wire harness.

[0033] In one embodiment, as shown in Figure 5As shown, the folded edge 21 includes a first section 211 and a second section 212, the first section 211 is bent downward from one end of the cover plate 20, and the second section 212 is connected to the end of the first section 211 away from the cover plate 20 and extends towards the inner side wall of the lower box body 10 to form a containing groove 22 with the lower box body 10, not only can make full use of the space of the lower box body 10, avoid increasing the size of the battery box by the folded edge 21, and can realize the limiting protection of the low-voltage wire harness through the containing groove 22 formed between the folded edge 21 and the lower box body 10.

[0034] The folded edge 21 can be roughly L-shaped, that is, the first section 211 and the second section 212 are roughly L-shaped, the first section 211 is bent downward from one end of the cover plate 20, and the second section 212 is connected to the end of the first section 211 away from the cover plate 20 and extends towards the lower box body 10, so that one end of the second section 212 is arranged opposite to a part of the lower box body 10, thereby forming a roughly U-shaped containing groove 22, and the low-voltage wire harness is located in the U-shaped containing groove 22, thereby ensuring the wiring stability of the low-voltage wire harness.

[0035] In one embodiment, at least part of the cover plate 20 and the second section 212 are substantially parallel, so that the volume of the containing groove 22 is relatively large, and the wiring of the low-voltage wire harness located in the containing groove 22 is relatively stable, which can avoid the problem of too long low-voltage wire harness to a certain extent.

[0036] In one embodiment, at least part of the cover plate 20 and the first section 211 are substantially perpendicular, that is, the first section 211 and the second section 212 are substantially perpendicular, and the first section 211 and the second section 212 roughly form an L-shaped structure, so that the low-voltage wire harness passes through, and the protection of the low-voltage wire harness can be realized, and the low-voltage wire harness and other wire harnesses can be isolated, for example, the low-voltage wire harness and the high-voltage wire harness are isolated, thereby avoiding the interference of high-voltage signals on low-voltage signals.

[0037] In one embodiment, as shown in Figure 2 and Figure 3 As shown, the lower box body 10 includes a bottom plate 11 and a main frame 12, the main frame 12 is connected to the bottom plate 11, the main frame 12 includes a first end plate 122 and a second end plate 123, the first end plate 122 and the second end plate 123 are oppositely connected to the bottom plate 11, and one end of the cover plate 20 is bent to form a folded edge 21 towards the second end plate 123, so that the folded edge 21 can form a containing groove 22 with the second end plate 123, thereby being used for containing the low-voltage wire harness and forming reliable protection for the low-voltage wire harness, at this time, the second end plate 123 can be provided with a BMS battery management module.

[0038] In combination with Figure 2As shown, the first end plate 122 and the second end plate 123 are oppositely arranged on the bottom plate 11, and the main frame 12 can further include two opposite side plates 121 which are conveniently connected to the opposite ends of the bottom plate 11, so as to form a containing space with the first end plate 122 and the second end plate 123, and a cavity for accommodating the battery is formed by connecting the cover plate 20 to the main frame 12, and effective protection is provided for the battery.

[0039] In one embodiment, the second end plate 123 is detachably connected to the main frame 12. In one embodiment, as shown in Figure 3 and Figure 6 As shown, the cover plate 20 is bent at the other end thereof towards the first end plate 122 to form a butt flange 23 which is connected to the first end plate 122, so as to reliably fix the cover plate 20 to the main frame 12, thereby ensuring the connection stability of the cover plate 20.

[0040] The opposite sides of the cover plate 20 respectively form a folding edge 21 and a butt flange 23 which is connected to the first end plate 122, and a containing groove 22 is formed between the folding edge 21 and the second end plate 123, so that the low-voltage wire harness can be located between the folding edge 21 and the second end plate 123, and reliable protection is provided for the low-voltage wire harness.

[0041] In one embodiment, the containing groove 22 is formed between the folding edge 21 and the second end plate 123, that is, a first section 211 of the folding edge 21 is bent downward from one end of the cover plate 20, and a second section 212 of the folding edge 21 is connected to the other end of the first section 211 away from the cover plate 20 and extends towards the inner side wall of the second end plate 123, so as to form the containing groove 22.

[0042] Considering that the cover plate 20 itself has a relatively simple structure, the folding edge 21 of the cover plate 20 is easier to form, and the subsequent connection of the cover plate 20 to the lower box body 10 can be conveniently completed, and when the battery pack is installed, the cover plate 20 can be the last component to be installed, so that the folding edge 21 of the cover plate 20 does not affect the installation of other components, thereby improving the installation efficiency of the battery pack.

[0043] In one embodiment, the folding edge 21 is connected to the second end plate 123, so as to improve the connection stability of the cover plate 20 to the lower box body 10, and the second end plate 123 can reliably support the folding edge 21, avoiding deformation and other problems of the folding edge 21, thereby improving the structural stability of the folding edge 21.

[0044] The second section 212 of the folding edge 21 can be placed on the top of the second end plate 123, so that the second end plate 123 forms a support for the folding edge 21, and reliable positioning of the cover plate 20 can be formed when the cover plate 20 is installed, thereby improving the installation efficiency of the cover plate 20.

[0045] In one embodiment, the fold edge 21 is detachably connected with the second end plate 123, which not only facilitates the installation of the fold edge 21 and the second end plate 123, but also facilitates the subsequent maintenance of the battery pack, thereby improving the service life of the battery pack.

[0046] In one embodiment, the fold edge 21 can be connected with the second end plate 123 through fasteners, for example, the fold edge 21 can be connected with the second end plate 123 through screws, which not only has a simple connection mode, but also is easy to install and facilitates subsequent disassembly.

[0047] The fold edge 21 and the second end plate 123 can be connected through a plurality of fasteners, which are not limited here.

[0048] Alternatively, the fold edge 21 and the second end plate 123 are clamped, which not only facilitates connection, but also facilitates the disassembly of the fold edge 21 and the second end plate 123. For example, the fold edge 21 and the second end plate 123 can be clamped through the structure formed by the protrusions and the grooves, which are not limited here.

[0049] In one embodiment, the second end plate 123 can be integrally formed with the main frame 12, at this time, by providing the fold edge 21 on the cover plate 20, the fold edge 21 and the second end plate 123 form the accommodating groove 22, the second end plate 123 can provide a support surface for the fold edge 21 and form the side wall of the accommodating groove 22, therefore, the second end plate 123 will not interfere with other structures inside the battery box, thereby facilitating the installation of the battery pack.

[0050] It should be noted that in some embodiments, the fold edge 21 can form the accommodating groove 22 with the main frame 12.

[0051] One embodiment of the present application also provides a battery pack comprising the above-mentioned battery box.

[0052] The battery box of the battery pack of one embodiment of the present application comprises a lower box 10 and a cover plate 20, the cover plate 20 is connected to the lower box 10, one end of the cover plate 20 is bent to form a fold edge 21, the fold edge 21 and the lower box 10 form an accommodating groove 22 for accommodating a low-voltage wire harness, so that the fold edge 21 can be used for the low-voltage wire harness to pass through, thereby achieving the limiting protection of the low-voltage wire harness through the fold edge 21, which not only provides a support structure for the low-voltage wire harness, but also forms protection for the low-voltage wire harness, and facilitates the wiring of the low-voltage wire harness, that is, ensures that the low-voltage wire harness can be wired according to a relatively fixed position, improves the wiring efficiency of the battery box, and thereby improves the use performance of the battery pack.

[0053] In one embodiment, as Figure 3 and Figure 4As shown, the battery pack further comprises: a battery assembly 30, the battery assembly 30 is arranged in the lower box 10, the battery assembly 30 comprises a plurality of single batteries 31; a BMS battery management module 40, the BMS battery management module 40 is arranged in the lower box 10; a low-voltage wire harness 41, the low-voltage wire harness 41 connects the battery assembly 30 and the BMS battery management module 40, part of the low-voltage wire harness 41 is arranged in the folded edge 21, so that part of the low-voltage wire harness 41 can form an electrical connection with the BMS battery management module 40 through the folded edge 21, and the BMS battery management module 40 is used to obtain voltage information, temperature information and the like of the battery assembly 30.

[0054] In combination Figure 4 As shown, the low-voltage wire harness 41 can comprise a circuit board, the circuit board can be arranged above the battery assembly 30 to form a connection with the plurality of single batteries 31, thereby being used to obtain voltage information, temperature information and the like of the single batteries 31, and the low-voltage wire harness 41 can further comprise a connecting wire harness, the connecting wire harness can be connected with a connector of the circuit board, and the connecting wire harness forms an electrical connection with the BMS battery management module 40 through the folded edge 21. The connecting wire harness can be a wire.

[0055] In one embodiment, as shown in Figure 1 , Figure 3 and Figure 5 As shown, the battery pack further comprises: a high-voltage connector 50, the high-voltage connector 50 is arranged in the lower box 10; a high-voltage wire harness 51, the high-voltage wire harness 51 connects the battery assembly 30 and the high-voltage connector 50, part of the high-voltage wire harness 51 is located below the folded edge 21, so that the folded edge 21 isolates the low-voltage wire harness and the high-voltage wire harness 51, that is, the folded edge 21 can form an electromagnetic shield, thereby avoiding interference of the high-voltage signal on the low-voltage signal.

[0056] The cover plate 20 is of metal material, that is, the folded edge 21 is of metal material, and the folded edge 21 isolates the low-voltage wire harness and the high-voltage wire harness 51, so that the interference of the high-voltage signal on the low-voltage signal can be avoided through electromagnetic shielding, thereby ensuring the use performance of the battery pack and avoiding problems such as signal confusion or weak signal.

[0057] The high-voltage connector 50 can serve as a charging and discharging connection end of the battery pack, the high-voltage connector 50 can be two, the two high-voltage connectors 50 can be a positive terminal and a negative terminal, and the BMS battery management module 40 can be located substantially between the two high-voltage connectors 50, as shown in Figure 1 .

[0058] In one embodiment, as shown in Figure 5As shown, at least one of the cover plate 20 and the folded edge 21 is provided with a through hole 24 for the low-voltage wire harness to pass through, and the folded edge 21 is provided for connection with the BMS battery management module 40. The low-voltage wire harness passing through the through hole 24 can be a wire, so as to pass through the through hole 24 into the accommodating groove 22 formed by the folded edge 21 and the lower box body 10.

[0059] In one embodiment, the low-voltage wire harness is clamped with the folded edge 21, which not only facilitates the fixation of the folded edge 21, but also ensures that the low-voltage wire harness can be reliably fixed on the folded edge 21. The low-voltage wire harness and the folded edge 21 can be clamped by a buckle provided on the folded edge 21. The low-voltage wire harness and the folded edge 21 are insulated, for example, the folded edge 21 can be coated with a coating layer, such as aluminum oxide (Al2O3), zirconium oxide (ZrO2), and the like.

[0060] The low-voltage wire harness is clamped with the folded edge 21, and the folded edge 21 can form an accommodating groove 22 with the second end plate 123, and the wire harness is located in the accommodating groove 22, so as to achieve reliable protection of the wire harness and improve the safe use performance of the battery pack.

[0061] It should be noted that the plurality of single batteries 31 can be fixed by the end plate and the side plate to form a battery module, and the battery module is assembled into the battery box, or the plurality of single batteries 31 can be directly arranged in the battery box, that is, the plurality of single batteries 31 do not need to be grouped, at this time, the end plate and the side plate can be removed.

[0062] The single battery 31 includes an electrode and an electrolyte, and is a minimum unit capable of electrochemical reactions such as charging / discharging. The electrode refers to a unit formed by winding or laminating a stacked portion including a first electrode, a separator, and a second electrode. When the first electrode is a positive electrode, the second electrode is a negative electrode. The polarity of the first electrode and the second electrode can be interchanged. The electrode is arranged in the battery case.

[0063] The single battery 31 is a laminated battery, which is not only convenient to group, but also can process a battery with a longer length. Specifically, the electrode is a laminated electrode, and the electrode has a first electrode sheet, a second electrode sheet opposite in electrical property to the first electrode sheet, and a diaphragm sheet arranged between the first electrode sheet and the second electrode sheet, so that a plurality of pairs of the first electrode sheet and the second electrode sheet are stacked to form the laminated electrode.

[0064] Alternatively, the single battery 31 can be a wound battery, that is, the first electrode sheet, the second electrode sheet opposite in electrical property to the first electrode sheet, and the diaphragm sheet arranged between the first electrode sheet and the second electrode sheet are wound to obtain a wound electrode.

[0065] It should be noted that the cover plate 20 can be formed with a plurality of folded edges 21, and the plurality of folded edges 21 can correspond to the plurality of battery assemblies 30 respectively. Each battery assembly 30 can be isolated from the high-voltage wire harness and the pressure wire harness through the corresponding folded edge 21, so as to avoid high-voltage and low-voltage signal interference, thereby ensuring the use performance of the battery pack.

[0066] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. The disclosure is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the disclosure are indicated by the appended claims.

[0067] It should be understood that the present disclosure is not limited to the precise structures herein described and illustrated in the drawings, and that various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A battery pack, characterized by, The battery pack comprises: a battery box, comprising a lower box (10) and a cover plate (20) connected to the lower box (10), one end of the cover plate (20) being bent to form a bent edge (21); a battery assembly (30) arranged in the lower box (10), the battery assembly (30) comprising a plurality of single batteries (31); a BMS battery management module (40) arranged in the lower box (10); a low-voltage wire harness (41) connecting the battery assembly (30) and the BMS battery management module (40), a part of the low-voltage wire harness (41) being arranged between the bent edge (21) and the lower box (10) to form an accommodation groove (22) for accommodating the low-voltage wire harness (41), the accommodation groove (22) being formed on the outside of the battery box, the opening of the accommodation groove (22) being connected to the outside, the accommodation groove (22) being located on the inner side of the lower box (10), the bent edge (21) comprising a first section (211) and a second section (212), the first section (211) being bent downward from one end of the cover plate (20), the second section (212) being connected to the end of the first section (211) away from the cover plate (20) and extending toward the inner side wall of the lower box (10) to form the accommodation groove (22) with the lower box (10).

2. The battery pack of claim 1, wherein, At least part of the cover plate (20) and the second section (212) are substantially parallel.

3. The battery pack of claim 2, wherein, At least part of the cover plate (20) and the first section (211) are substantially perpendicular.

4. The battery pack of any one of claims 1-3, wherein, The lower box (10) comprises a bottom plate (11) and a main frame (12) connected to the bottom plate (11), the main frame (12) comprising a first end plate (122) and a second end plate (123) oppositely connected to the bottom plate (11), one end of the cover plate (20) being bent to form the bent edge (21) toward the second end plate (123), the bent edge (21) and the second end plate (123) forming the accommodation groove (22).

5. The battery pack of claim 4, wherein, The other end of the cover plate (20) is bent to form a butt joint flange (23) toward the first end plate (122), the butt joint flange (23) being connected to the first end plate (122).

6. The battery pack of claim 4, wherein, The bent edge (21) is connected to the second end plate (123). The bent edge (21) and the second end plate (123) are detachably connected.

7. The battery pack of claim 6, wherein, The bent edge (21) and the second end plate (123) are connected by fasteners, or the bent edge (21) and the second end plate (123) are clamped.

8. The battery pack of claim 1, wherein, The battery pack further comprises: a high-voltage connector (50) arranged in the lower box (10). A high-voltage wire harness (51) connects the battery assembly (30) and the high-voltage connector (50), and a portion of the high-voltage wire harness (51) is located below the folded edge (21) so that the folded edge (21) separates the low-voltage wire harness and the high-voltage wire harness (51).

9. The battery pack of claim 1 or 8, wherein, At least one of the cover plate (20) and the folded edge (21) is provided with a through hole (24) for the low-voltage wire harness to pass through.

10. The battery pack of claim 1 or 8, wherein, The low-voltage wire harness is clamped with the folded edge (21).

Images