Battery pack and electric equipment

Abstract

The embodiment of the utility model provides a battery pack and electric equipment, the battery pack comprises a cover plate, a tray and a first grounding piece, and the outer surface of the cover plate is coated with an insulating layer; the cover plate covers the tray, and the tray is configured to be grounded; the first grounding piece is conductively connected to the cover plate and the tray, so that the cover plate and the tray can be grounded together through the first grounding piece, risks of accidental electric leakage, electric shock and the like are reduced, the safety of the battery pack is improved, and the safety of electric equipment applying the battery pack is also improved.

Description

Technical Field

[0001] The present application belongs to the technical field of power batteries. Specifically, the present application relates to a battery pack and an electrical device. Background Art

[0002] As an electrical device, battery packs are widely used in electrical equipment such as vehicles. In the prior art, battery packs usually use steel covers to improve the strength of the battery packs. The outer surface of the steel cover usually needs to be covered with an insulating layer for corrosion protection. However, the long-term static electricity accumulation of metal parts in the battery pack will lead to increased potential, so that the steel cover will have risks such as leakage, which in turn affects the safety of the battery pack. Utility Model Content

[0003] One purpose of the embodiments of the present application is to provide a new technical solution for a battery pack and an electrical device.

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

[0005] A cover plate, wherein the outer surface of the cover plate is covered with an insulating layer;

[0006] A tray, the cover plate is disposed on the tray, and the tray is configured to be groundable;

[0007] A first grounding member is conductively connected to the cover plate and the tray.

[0008] Optionally, the first grounding member is integrally connected to the cover plate.

[0009] Optionally, the first grounding member is configured as a first nut, the cover plate has a first through hole, and the first nut is welded to the first through hole;

[0010] The battery pack also includes a grounding screw. The tray has a second through hole. The grounding screw passes through the second through hole and the first through hole in sequence and forms a threaded connection with the first nut so that the first grounding piece is conductively connected to the cover plate and the tray.

[0011] Optionally, the first grounding member is constructed as a rivet, one end of the rivet is connected to the cover plate, and the other end is riveted to the tray, so that the first grounding member is conductively connected to the cover plate and the tray.

[0012] Optionally, the cover plate includes a first side edge, the first side edge is used to be connected to the tray, and the first through hole is provided on the first side edge.

[0013] Optionally, the cover plate has a rectangular structure, and the first through hole is provided on one of the first side edges of the cover plate along the width direction.

[0014] Optionally, a second grounding member is further included, wherein one end of the second grounding member is conductively connected to the tray, and the other end of the second grounding member is conductively connected to an external structure.

[0015] Optionally, the second grounding member is constructed as a second nut, the tray has a third through hole, the second nut is fixedly connected to the third through hole, and the second nut is used to be threadedly connected to the external structure.

[0016] Optionally, the cover plate and the tray are both rectangular structures, the cover plate and the tray are both provided with side edges in the circumferential direction and are connected to each other, the first grounding member is provided on a first side edge of the cover plate along the length direction, and the second grounding member is provided on a second side edge of the tray away from the first grounding member along the length direction;

[0017] Alternatively, the first grounding member is disposed on a first side edge of the cover plate along the width direction, and the second grounding member is disposed on a second side edge of the tray along the width direction away from the first grounding member.

[0018] Optionally, the first grounding member and the second grounding member are arranged along a diagonal line parallel to the tray.

[0019] Optionally, the tray is provided with a grounding flange, and the second grounding member is provided on the grounding flange.

[0020] According to a second aspect of an embodiment of the present application, there is provided an electrical device comprising the battery pack described in the first aspect.

[0021] A technical effect of this application is:

[0022] An embodiment of the present application provides a battery pack, including a cover plate, a tray and a first grounding member, wherein the outer surface of the cover plate is covered with an insulating layer; the cover plate is covered on the tray, and the tray is constructed to be grounded; the first grounding member is conductively connected to the cover plate and the tray, so that the cover plate and the tray can be grounded together through the first grounding member, reducing the risk of accidental leakage and electric shock, thereby improving the safety of the battery pack and the safety of electrical equipment using the battery pack.

[0023] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0025] Figure 1 A schematic diagram of a battery pack provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 A partial enlarged view of the connection of the first grounding member;

[0027] Figure 3 for Figure 1 A cross-sectional view of a connection portion of the first grounding member;

[0028] Figure 4 Another schematic diagram of a battery pack provided in an embodiment of the present application;

[0029] Figure 5 for Figure 4 A local enlarged view of the connection of the second grounding piece.

[0030] Description of reference numerals:

[0031] 1. Cover plate; 11. First through hole; 12. First side edge; 2. First grounding piece; 3. Tray; 31. Second through hole; 32. Grounding flange; 33. Second side edge; 4. Grounding screw; 5. Second grounding piece. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "height", "thickness", "up", "down", "front", "middle", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] Reference Figures 1 to 5 The embodiment of the present application provides a battery pack, which can be used in other electrical equipment such as vehicles and refrigerators.

[0039] like Figure 1 As shown, the battery pack includes:

[0040] A cover plate 1, wherein the outer surface of the cover plate 1 is covered with an insulating layer;

[0041] A tray 3, the cover plate 1 is covered on the tray 3, and the tray 3 is configured to be grounded;

[0042] A first grounding member 2 , wherein the first grounding member 2 is conductively connected to the cover plate 1 and the tray 3 .

[0043] Specifically, the cover plate 1 can be a steel cover of the battery pack, and the cover plate 1 is used to protect the internal battery module, battery management system (BMS), thermal management system and other structural parts, and provide physical support and isolation, so as to improve the safety and reliability of the battery pack. The cover plate 1 can be provided with a first through hole 11, which is a through hole on the cover plate 1, and the first through hole 11 is mostly a round hole, so as to facilitate the penetration and connection of the first grounding member 2.

[0044] Among them, the outer surface of the cover plate 1 is usually covered with an insulating layer. The setting of the insulating layer can avoid corrosion and other problems caused by the contact between the cover plate 1 and moisture, water vapor, etc. in the air, and can also reduce the risk of rust on the cover plate 1, thereby improving the safety and reliability of the battery pack.

[0045] like Figure 1 and Figure 3As shown, the cover plate 1 is placed on the tray 3, so that the tray 3 and the cover plate 1 are buckled together to form a storage space, which can be used to set other structural parts such as battery modules, battery management systems (BMS), thermal management systems, etc. Among them, matching mounting holes and mounting screws can be arranged on the cover plate 1 and the tray 3, and the connection between the cover plate 1 and the tray 3 is achieved by the cooperation of the mounting holes and the mounting screws.

[0046] The tray 3 is usually an aluminum tray, and there is no need to set an insulating layer for corrosion protection. The tray 3 can be directly connected to the entire vehicle or other electrical equipment for conductive connection and grounding.

[0047] On this basis, the embodiment of the utility model is also provided with a first grounding member 2, and the first grounding member 2 is conductively connected between the cover plate 1 and the tray 3, so that the first grounding member 2 can be used to realize the conductive connection between the tray 3 and the cover plate 1, so that the tray 3 and the cover plate 1 form an equal potential, which is convenient for subsequent grounding through the tray 3, and can reduce the risk of leakage and electric shock caused by abnormalities such as damage to the insulating layer on the cover plate 1, thereby improving the safety of the battery pack and the safety of electrical equipment using the battery pack.

[0048] Among them, the first grounding member 2 is conductively connected between the cover plate 1 and the tray 3. The conductive connection between the first grounding member 2 and the cover plate and the tray 3 can be achieved by welding, or by screwing (threaded connection), so as to adapt to the requirements of different battery pack structures.

[0049] Optionally, the first grounding member 2 is integrally connected to the cover plate 1 .

[0050] Specifically, the first grounding member 2 is integrally connected to the cover plate 1. For example, the first grounding member 2 and the cover plate 1 can be welded to form an integral structure, so that the first grounding member 2 can form a conductive connection with the cover plate 1, which is convenient for subsequent conductive connection with the tray 3, and can also avoid the impact of the electrophoresis process of the cover plate 1 on its safety performance, thereby improving the safety and reliability of the battery pack. In addition, welding the first grounding member 2 and the cover plate 1 to form an integral structure can also improve the reliability of the sealed connection between the first grounding member 2 and the cover plate 1.

[0051] In another embodiment, the first grounding member 2 and the cover plate 1 may be integrally formed, that is, the first grounding member 2 and the cover plate 1 form a structural member, which can improve the connection reliability between the first grounding member 2 and the cover plate 1 while utilizing the first grounding member 2 to achieve a conductive connection with the cover plate 1, thereby reducing the difficulty of assembling the battery pack and improving the production efficiency of the battery pack.

[0052] Optionally, the first grounding member 2 is configured as a first nut, the cover plate 1 has a first through hole 11, and the first nut is welded to the first through hole 11;

[0053] The battery pack also includes a grounding screw 4. The tray 3 has a second through hole 31. The grounding screw 4 passes through the second through hole 31 and the first through hole 11 in sequence and forms a threaded connection with the first nut, so that the first grounding piece 2 is conductively connected to the cover plate 1 and the tray 3.

[0054] Among them, the first nut can be made of stainless steel or covered with a protective layer (i.e., an oxide layer) through blackening treatment, which can avoid corrosion and other problems caused by the contact of the first nut with moisture, water vapor, etc. in the air, and can also reduce the risk of rusting of the first nut, thereby ensuring the reliability of the conductive connection between the first nut and the cover plate 1.

[0055] Before the first nut is blackened to be covered with a protective layer, the internal thread of the first nut can be masked to avoid the risk of the internal thread being covered with an insulating layer (i.e., an oxide layer) caused by the blackening process, thereby improving the reliability of the conductive connection between the first nut and the cover plate 1.

[0056] like Figure 2 and Figure 3 As shown, the cover plate 1 may be provided with a first through hole 11, which is a through hole on the cover plate 1 and is mostly a round hole, so as to facilitate welding of the first nut. The tray 3 is provided with a second through hole 31, and the grounding screw 4 can pass through the second through hole 31 and the first through hole 11 in sequence from the side of the tray 3 away from the cover plate 1.

[0057] Moreover, the grounding screw 4 has an external thread, and the first nut has an internal thread, and the external thread cooperates with the internal thread to form a threaded connection, thereby enabling a conductive connection between the tray 3 and the cover plate 1, so that the tray 3 and the cover plate 1 form an equal potential, which facilitates subsequent grounding through the tray 3, reducing the risk of leakage and electric shock caused by abnormalities such as damage to the insulating layer on the cover plate 1, thereby improving the safety of the battery pack and the safety of electrical equipment using the battery pack.

[0058] Optionally, the first nut is made of stainless steel or is covered with a protective layer.

[0059] Specifically, the first nut can be made of stainless steel or covered with a protective layer (i.e., an oxide layer) through blackening treatment, which can avoid corrosion and other problems caused by contact between the first nut and moisture, water vapor, etc. in the air, and can also reduce the risk of rusting of the first nut, thereby ensuring the reliability of the electrical connection between the first nut and the cover plate 1.

[0060] Before the first nut is subjected to a blackening treatment to be covered with a protective layer, the internal thread of the first nut may be masked first to avoid the risk of the internal thread being covered with an insulating layer (i.e., an oxide layer) caused by the blackening treatment process, thereby improving the reliability of the electrical connection between the first nut and the cover plate 1.

[0061] Optionally, the first grounding member 2 is constructed as a rivet, one end of the rivet is connected to the cover plate 1 , and the other end is riveted to the tray 3 , so that the first grounding member 2 is conductively connected to the cover plate 1 and the tray 3 .

[0062] Specifically, in one embodiment, the cover plate 1 and the tray 3 can be riveted together by rivets, and the conductive connection between the cover plate 1 and the tray 3 can also be achieved. Alternatively, one end of the rivet can be welded to the cover plate 1, and the other end of the rivet can be riveted to the tray 3, and the conductive connection between the cover plate 1 and the tray 3 can also be achieved, which is convenient for adapting to the requirements of different battery pack structures.

[0063] Optionally, the cover plate 1 includes a first side edge 12 , where the first side edge 12 is used to be connected to the tray 3 , and the first through hole 11 is provided on the first side edge 12 .

[0064] like Figure 1 and Figure 2 As shown, the first side edge 12 is usually the side edge of the cover plate 1, which is used to form a convenient connection with the tray 3. The first through hole 11 is arranged on the first side edge 12 of the cover plate 1. On the one hand, it is convenient to open the first through hole 11, which reduces the processing difficulty of the battery pack and avoids the influence of the opening of the first through hole 11 on the overall strength of the cover plate 1; on the other hand, the first through hole 11 is arranged on the first side edge 12 of the cover plate 1, which is also convenient for connecting the grounding screw 4 and the first nut, avoiding the interference of the relevant internal structure of the battery pack on the connection process, and also improving the reliability of the conductive connection between the first nut and the cover plate 1.

[0065] In another embodiment, a plurality of first through holes 11 may be provided on the first side edge 12 of the cover plate 1, and the number of the first nuts and the number of the grounding screws 4 may be the same as the number of the first through holes 11, so that the reliability of the conductive connection between the cover plate 1 and the tray 3 can be enhanced by utilizing the connection between the plurality of grounding screws 4 and the plurality of first nuts.

[0066] Optionally, the cover plate 1 is of a rectangular structure, and the first through hole 11 is provided on a first side edge 12 of the cover plate 1 along a width direction.

[0067] Specifically, the cover plate 1 is usually a rectangular plate, so as to be compatible with the internal battery module, to make full use of the internal space of the cover plate 1, and to facilitate mass production of the cover plate 1. The first through hole 11 is arranged on a first side edge 12 of the cover plate 1 along the width direction, which can facilitate the opening of the first through hole 11, reduce the processing difficulty of the battery pack, and avoid the influence of the opening of the first through hole 11 on the overall strength of the cover plate 1.

[0068] In another embodiment, Figure 1 As shown, according to actual connection requirements, the first through hole 11 can also be arranged on a first side edge 12 of the cover plate 1 along the length direction, thereby improving the application range of the battery pack.

[0069] Optionally, a second grounding member 5 is further included, one end of the second grounding member 5 is conductively connected to the tray 3, and the other end is conductively connected to an external structure.

[0070] like Figure 1 , Figure 4 and Figure 5 As shown, one end of the second grounding member 5 can be conductively connected to the tray 3 by welding, riveting, bonding, screw connection, etc., and the other end of the second grounding member 5 can be conductively connected to the external structure by welding, riveting, bonding, screw connection, etc., so that the second grounding member 5 can be used to achieve grounding of the tray 3, thereby improving the safety of the battery pack and the safety of the electrical equipment using the battery pack. Among them, the external structure includes but is not limited to the vehicle body or the shell of other electrical equipment.

[0071] Optionally, the second grounding member 5 is constructed as a second nut, the tray 3 has a third through hole, the second nut is fixedly connected to the third through hole, and the second nut is used to be threadedly connected to the external structure.

[0072] like Figure 1 , Figure 4 and Figure 5 As shown, the tray 3 is also provided with a third through hole, which is usually located on the side of the tray 3 away from the second through hole 31. The second nut is inserted into the third through hole so that the second nut and the tray 3 form an integrated structure, which facilitates the use of the second nut to achieve grounding of the battery pack, thereby reducing the risk of leakage and electric shock caused by abnormalities such as damage to the insulating layer on the cover plate 1, thereby improving the safety of the battery pack and the safety of the electrical equipment using the battery pack. The second nut can be made of stainless steel to achieve an anti-corrosion effect.

[0073] Optionally, the cover plate 1 and the tray 3 are both rectangular structures, the cover plate 1 and the tray 3 are both provided with side edges in the circumferential direction and are connected to each other, the first grounding member 2 is provided on a first side edge 12 of the cover plate 1 along the length direction, and the second grounding member 5 is provided on a second side edge 33 of the tray 3 away from the first grounding member 2 along the length direction;

[0074] Alternatively, the first grounding member 2 is disposed on a first side edge 12 of the cover plate 1 along the width direction, and the second grounding member 5 is disposed on a second side edge 33 of the tray 3 away from the first grounding member 2 along the width direction.

[0075] Specifically, the cover plate 1 and the tray 3 are usually both rectangular structures or similar to rectangular structures, so that the storage space formed by the cover plate 1 and the tray 3 is also similar to a rectangular structure, which facilitates the adaptation of the storage space to the battery module, thereby facilitating the full utilization of the storage space formed by the cover plate 1 and the tray 3, and also facilitating mass production of the cover plate 1 and the tray 3.

[0076] According to the actual requirements of the battery pack structure, the cover plate 1 and the tray 3 may also be arranged to have other irregular structures such as round, square, trapezoidal, etc.

[0077] Wherein, side edges can be respectively provided on the circumference of the cover plate 1 and the tray 3, and the first side edge 12 of the cover plate 1 and the second side edge 33 of the tray 3 are connected to each other (e.g., snap-fitted, bonded, etc.) to realize the connection between the cover plate 1 and the tray 3. Matching mounting holes and mounting screws can also be arranged on the side edges of both, and the connection between the cover plate 1 and the tray 3 can be strengthened by the cooperation of the mounting holes and the mounting screws.

[0078] In one embodiment, the second through hole 31 and the third through hole are generally disposed on two opposite second side edges 33 of the tray 3, for example, the second through hole 31 and the third through hole can be disposed on two opposite short sides of the tray 3 (i.e., two second side edges 33 along the width direction), or the second through hole 31 and the third through hole can be disposed on two opposite long sides of the tray 3 (i.e., two second side edges 33 along the width direction). Figure 1 and Figure 3 As shown in the figure, the two second side edges 33 along the length direction are arranged), so that the size of the tray 3 itself can be used to increase the distance between the second through hole 31 and the third through hole, thereby correspondingly increasing the distance between the first grounding member 2 and the second grounding member 5, thereby improving the insulation resistance and insulation performance between the first grounding member 2 and the second grounding member 5, thereby improving the safety of the battery pack.

[0079] In another embodiment, the second through hole 31 and the third through hole can be respectively arranged on the same second side edge 33 of the tray 3, so that the first grounding member 2 and the second grounding member 5 are respectively located on the same side edge of the cover plate 1 and the tray 3, which can facilitate the assembly of the battery pack and can also adapt to the requirements of different battery pack structures.

[0080] Optionally, the first grounding member 2 and the second grounding member 5 are arranged along a diagonal line parallel to the tray 3 .

[0081] Specifically, the third through hole and the second through hole 31 can be arranged along a diagonal line parallel to the tray 3, so that the first grounding member 2 and the second grounding member 5 are also arranged along a diagonal line parallel to the tray 3 accordingly, thereby maximizing the distance between the first grounding member 2 and the second grounding member 5, thereby improving the insulation resistance and insulation performance between the first grounding member 2 and the second grounding member 5, and also improving the safety of the battery pack.

[0082] Optionally, the tray 3 is provided with a grounding flange 32 ， The second grounding member 5 is disposed on the grounding flange 32 .

[0083] like Figure 1 , Figure 4 and Figure 5 As shown, the grounding flange 32 is usually located on the second side edge 33 of the tray 3, and is used for conductive connection to the external structure. The second grounding member 5 is arranged on the grounding flange 32 of the tray 3, which can facilitate the conductive connection between the second grounding member 5 and the external structure, avoid the interference of the relevant internal structure of the battery pack on the connection process, and also improve the reliability of the conductive connection between the second grounding member 5 and the external structure.

[0084] In another embodiment, a plurality of second grounding members 5 may be provided on the grounding flange 32 of the tray 3, so that the reliability of the conductive connection between the tray 3 and the external structure can be enhanced by utilizing the conductive connection between the plurality of second grounding members 5 and the external structure, thereby further improving the safety of the battery pack structure.

[0085] Optionally, the tray 3 is a double-layer plate integrated with a cold plate.

[0086] Specifically, by setting the tray 3 as a double-layer plate integrated cold plate, the tray 3 is buckled with the cover plate 1 to form a accommodating space. The accommodating space can be used to set other structural parts such as battery modules, battery management system (BMS), thermal management system, etc., and the double-layer plate integrated cold plate can also be used to cool the internal battery modules, battery management system (BMS), thermal management system, etc. Other structural parts, thereby ensuring the normal operation of the battery pack.

[0087] The present application also provides an electric device, including the above-mentioned battery pack, wherein the electric device includes but is not limited to a vehicle and a refrigerator.

[0088] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A battery pack, characterized in that: include: A cover plate (1), wherein the outer surface of the cover plate (1) is covered with an insulating layer; A tray (3), the cover plate (1) being arranged on the tray (3), and the tray (3) being configured to be groundable; A first grounding member (2), wherein the first grounding member (2) is conductively connected to the cover plate (1) and the tray (3).

2. The battery pack according to claim 1, characterized in that: The first grounding member (2) is integrally connected to the cover plate (1).

3. The battery pack according to claim 2, characterized in that: The first grounding member (2) is constructed as a first nut, the cover plate (1) has a first through hole (11), and the first nut is welded to the first through hole (11); The battery pack further comprises a grounding screw (4), the tray (3) having a second through hole (31), the grounding screw (4) sequentially passing through the second through hole (31) and the first through hole (11), and forming a threaded connection with the first nut, so that the first grounding member (2) is conductively connected to the cover plate (1) and the tray (3).

4. The battery pack according to claim 2, characterized in that: The first grounding member (2) is constructed as a rivet, one end of the rivet is connected to the cover plate (1), and the other end is riveted to the tray (3), so that the first grounding member (2) is conductively connected to the cover plate (1) and the tray (3).

5. The battery pack according to claim 3, characterized in that: The cover plate (1) comprises a first side edge (12), the first side edge (12) being used for connecting to the tray (3), and the first through hole (11) being arranged on the first side edge (12).

6. The battery pack according to claim 5, characterized in that: The cover plate (1) has a rectangular structure, and the first through hole (11) is arranged on one of the first side edges (12) of the cover plate (1) along the width direction.

7. The battery pack according to any one of claims 1 to 6, characterized in that: It also comprises a second grounding member (5), one end of which is conductively connected to the tray (3) and the other end of which is conductively connected to an external structure.

8. The battery pack according to claim 7, characterized in that: The second grounding member (5) is constructed as a second nut, the tray (3) has a third through hole, the second nut is fixedly connected to the third through hole, and the second nut is used for being threadedly connected to the external structure.

9. The battery pack according to claim 7, characterized in that: The cover plate (1) and the tray (3) are both rectangular structures; the cover plate (1) and the tray (3) are both provided with side edges in the circumferential direction and are connected to each other; the first grounding member (2) is provided on a first side edge (12) of the cover plate (1) along the length direction; and the second grounding member (5) is provided on a second side edge (33) of the tray (3) away from the first grounding member (2) along the length direction; Alternatively, the first grounding member (2) is arranged on a first side edge (12) of the cover plate (1) in the width direction, and the second grounding member (5) is arranged on a second side edge (33) of the tray (3) in the width direction away from the first grounding member (2).

10. The battery pack according to claim 9, characterized in that: The first grounding piece (2) and the second grounding piece (5) are arranged along a diagonal line parallel to the tray (3).

11. The battery pack according to claim 7, characterized in that: The tray (3) is provided with a grounding flange (32) ， The second grounding member (5) is arranged on the grounding flange (32).

12. An electrical equipment, characterized in that: A battery pack comprising any one of claims 1 to 11.

Images