CN217788712U - End plate and battery pack - Google Patents

Abstract

The utility model relates to a battery technology field provides an end plate and group battery. The end plate comprises an end plate body, wherein at least one electric connecting piece is arranged in the end plate body, the electric connecting piece and the end plate body are arranged in an insulating mode, the electric connecting piece is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are used for being connected with a device for carrying out electric signal transmission in a battery pack. When using the end plate that this application provided, can adopt the end plate to replace partial circuit board, realize signal transmission through electric connector's first link and second link. On the one hand, the function of end plate body can be expanded in this structural setting for the end plate body can realize the signal transmission function when possessing self function. On the other hand, electric connector locates inside the end plate body, can promote group battery inner space utilization, simultaneously, can simplify group battery inner structure complexity and reduce the assembly degree of difficulty.

Description

End plate and battery pack

Technical Field

The utility model relates to a battery technology field especially relates to an end plate and group battery.

Background

Due to the limitations of the vehicle structure, the space for accommodating the battery pack is limited, which requires placing as many batteries as possible in the limited space of the battery box. Generally, a battery in the battery pack is connected with a circuit board, and the circuit board is connected with other structural members to realize the acquisition of battery signals.

The circuit boards may need to be arranged in different directions according to design requirements of a BMS (battery management system). However, the circuit board needs to occupy a separate space inside the battery, which may crush the space of other devices, thereby resulting in a low space utilization inside the battery pack.

SUMMERY OF THE UTILITY MODEL

The utility model provides an end plate and group battery to realize the function of partly electric connection through the end plate, promote group battery space utilization.

In order to achieve the above purpose, the utility model provides a following technical scheme:

according to a first aspect of the present invention, there is provided an end plate, comprising:

the battery pack comprises an end plate body, wherein at least one electric connecting piece is arranged in the end plate body, the electric connecting piece and the end plate body are arranged in an insulating mode, the electric connecting piece is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are used for being connected with a device for electric signal transmission in the battery pack.

In the end plate that this application provided, electric connector locates inside the end plate body, and electric connector and end plate body are insulating to be set up within a definite time. When the end plate provided by the application is applied, the end plate can be used for replacing part of the circuit board. Specifically, the device for transmitting the electric signal in the battery pack can be respectively connected with the first connecting end and the second connecting end of the electric connector to realize signal transmission. It should be noted that, on the one hand, the function of the end plate body can be expanded through the structural arrangement, so that the signal transmission function can be realized while the end plate body has the function of the end plate body. On the other hand, when adopting flexible circuit board, flexible circuit board need occupy solitary space, so need consider flexible circuit board dodge and fixed problem, electric connector locates inside the end plate body in this application, can promote group battery space utilization, simultaneously, can simplify group battery inner structure complexity and reduce the assembly degree of difficulty.

According to the second aspect of the present invention, there is provided a battery pack comprising the end plate provided in any of the above-described technical solutions.

In the group battery that this application provided, electric connector locates inside the end plate body, and electric connector and end plate body are insulating to be set up within a definite time. In applying the battery pack provided by the present application, the end plate may be used in place of a portion of the circuit board. Specifically, the device for transmitting the electric signal in the battery pack can be respectively connected with the first connecting end and the second connecting end of the electric connector to realize signal transmission. It should be noted that, on the one hand, the function of the end plate body can be expanded through the structural arrangement, so that the signal transmission function can be realized while the end plate body has the function of the end plate body. On the other hand, when adopting flexible circuit board, flexible circuit board need occupy solitary space, so need consider flexible circuit board dodge and fixed problem, electric connector locates inside the end plate body among the group battery that this application provided, can promote group battery space utilization, simultaneously, can simplify group battery inner structure complexity and reduce the assembly degree of difficulty.

Drawings

For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:

FIG. 1 is a schematic view of a first embodiment of an end plate according to the present disclosure;

FIG. 2 is a second schematic view of an end plate according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a third embodiment of an end plate according to the present disclosure;

fig. 4 is a fourth structural diagram of an end plate according to an embodiment of the present application.

The reference numerals are explained below:

100. an end plate; 110. an end plate body; 1111. a first sub-board; 1112. a second sub-board; 1113. a body portion; 1114. a filling section; 120. an electrical connection; 200. a plug-in unit; 300. a signal acquisition end; 400. an external connection.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" object or "an" object is also intended to mean one of many such objects possible.

The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood as a specific case by a person skilled in the art.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in the context of a connection between one element or feature and another element(s), "on," "under," or "inside" or "outside," it can be directly connected to the other element(s) "on," "under" or "inside" or "outside," or indirectly connected to the other element(s) "on," "under" or "inside" or "outside" through intervening elements.

The embodiment of the application provides an end plate. Fig. 1 is a schematic structural diagram of an end plate 100 according to an embodiment of the present disclosure. As shown in fig. 1, the end plate 100 includes: the end plate comprises an end plate body 110, wherein at least one electric connecting piece 120 is arranged in the end plate body 110, the electric connecting piece 120 and the end plate body 110 are arranged in an insulating mode, the electric connecting piece 120 is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are used for being connected with a device for carrying out electric signal transmission in a battery pack. It should be understood that the "device for transmitting electrical signals" in the battery pack refers to a device that needs to transmit electrical signals through the electrical connector 120, and will be specifically described in the following structure, and will not be described herein again.

With continued reference to the structure shown in fig. 1, in the end plate 100 provided in the embodiment of the present application, the electrical connector 120 is disposed inside the end plate body 110, and the electrical connector 120 is disposed in an insulating manner with respect to the end plate body 110. When the end plate 100 provided by the embodiment of the present application is applied, the end plate 100 may be used to replace a part of the circuit board. Specifically, the devices for transmitting electrical signals in the battery pack can be connected to the first connection end and the second connection end of the electrical connector 120, respectively, so as to implement signal transmission. On one hand, the structural arrangement can expand the function of the end plate body 110, so that the end plate body 110 has the function of itself and can realize the signal transmission function. On the other hand, when adopting flexible circuit board, flexible circuit board need occupy solitary space, so need consider flexible circuit board dodge and fixed problem, electric connector 120 locates inside end plate body 110 in this application embodiment, can promote group battery space utilization, simultaneously, can simplify group battery inner structure complexity and reduce the assembly degree of difficulty.

It is noted that when the electrical connector 120 is disposed in the end plate body 110, the first connection end and the second connection end of the electrical connector 120 may be located on a surface of the end plate body 110 to perform a connection operation with a device for electrical signal transmission in the battery pack. Of course, the first connection end and the second connection end may also protrude from the surface of the end plate body 110 to facilitate connection of the electrical connector 120 with other devices. Even more, a groove may be formed at a position of the end plate body 110 corresponding to the first connection end and the second connection end, so as to place the first connection end and the second connection end inside the groove. It should be noted that, when the first connection end and the second connection end are disposed in the groove, the groove may form an avoiding portion to accommodate a connection structure of the first connection end or the second connection end with other devices.

It should be understood that the number of the electrical connectors 120 may be 1 or more, when the number of the electrical connectors 120 is multiple, the surfaces of the first connecting ends of the electrical connectors 120 are the same or different, and similarly, the surfaces of the second connecting ends of the electrical connectors 120 are the same or different and are not described herein again.

It should be noted that, with continued reference to the structure shown in fig. 1, in one embodiment, the end plate body 110 is a plate-shaped structure having six surfaces, specifically, the end plate body 110 includes a large surface M and a large surface N with a relatively large area. It is noted that the large surface M is disposed opposite to the large surface N. When the end plate 100 provided in the embodiment of the present application is used, one large surface of the end plate body 110 is disposed toward a large surface of the battery. It should be understood that the "large face" refers to a face having a larger area than the other four faces.

In one embodiment, the end plate body 110 may be provided at one side of an entirety in which a plurality of cells are stacked. Specifically, in a specific embodiment, it may be provided that: the end plate body 110 is provided on one side of an "entirety" formed by a plurality of cells in the stacking direction; in another specific embodiment, it may be provided that: the end plate body 110 is provided on one side of the "entirety" formed by the plurality of cells in the vertical stacking direction, in other words, the extending direction of the end plate 100 is parallel to the stacking direction of the plurality of cells. Of course, there is also a possibility that the end plate 100 is disposed between adjacent cells, and the end plate may be disposed as required, which is not described herein.

For the sake of better clarity of the end plate 100 provided in the embodiments of the present application, the following description will be made by taking an example that "the end plate body 110 is disposed on one side of the whole formed by the plurality of cells along the stacking direction, and the end plate body 110 is disposed with only one electrical connector 120, and the first connection end and the second connection end of the electrical connector 120 are both located on the surface of the end plate body 110".

With continued reference to the structure shown in fig. 1, the end plate body 110 includes a first side surface S1 and a first side surface S2, which are oppositely disposed, and a first side surface S3 and a first side surface S4, which are oppositely disposed, wherein the first side surface S1, the first side surface S3, the first side surface S2, and the first side surface S4 are sequentially connected to form a ring structure.

It is noted that the circuit board may need to be arranged in different directions due to design requirements of a BMS (battery management system). In one embodiment, the first connection end and the second connection end of the electrical connector 120 may be disposed on two different surfaces of the end plate body 110 to achieve the direction conversion effect. In one embodiment, the endplate body 110 may be provided with a first surface and a second surface, and the first surface and the second surface are not coplanar. It should be understood that the first and second surfaces may be any two surfaces of the large surface M, the large surface N, the first side surface S1, the second side surface S2, the third side surface S3, and the fourth side surface S4. Of course, the first connection end and the second connection end of the electrical connector 120 may be disposed on the same surface as required to improve the space utilization rate in the battery pack, which is not described herein again.

When the electrical connector 120 is disposed, a first connection end of the electrical connector 120 may be disposed on the first surface, and a second connection end may be disposed on the second surface. For example, as shown in fig. 1, the first connection end of the electrical connector 120 is disposed on the large surface M, the second connection end of the electrical connector 120 is disposed on the first side surface S1, and the other structural members can be connected to the electrical connector 120 to realize the conversion of the routing direction. It should be noted that the electrical connector 120 is disposed inside the end plate body 110 to replace a portion of a Flexible Printed Circuit (FPC), which can avoid a complicated layout when the FPC is used to connect other structural members, thereby improving the space utilization rate in the battery pack.

Of course, the first connection end and the second connection end of the electrical connector 120 may be disposed on other surfaces. For example, referring to the structure shown in fig. 2, the first connection end of the electrical connector 120 is disposed on the large surface M, the second connection end of the electrical connector 120 is disposed on the fourth side surface S4, and other structural members can realize the conversion of the routing direction by connecting the electrical connector 120. Of course, the first connection end and the second connection end of the electrical connector 120 may also be disposed on other surfaces, which is not described herein.

It should be noted that the end plate body 110 provided in the embodiment of the present application has a plurality of structural forms, and specifically, at least one of the following structural forms is provided.

In one embodiment, with continued reference to the structure shown in fig. 1, the end plate body 110 is a one-piece molded structure.

Specifically, the electrical connector 120 is pre-embedded in the end plate body 110, and the electrical connector 120 and the end plate 100 are integrally formed through a manufacturing process. For example, the end plate body 110 may be formed by injection molding, and during the process of preparing the end plate body 110, the electrical connector 120 is placed in a semi-composite product, and then the injection molding operation is continued to form the end plate body 110.

It should be noted that, the integrally formed structure can simplify the manufacturing process of the end plate 100 provided in the embodiment of the present application, so that the manufacturing efficiency can be improved, and the manufacturing cost can be reduced.

It should be understood that the electrical connector 120 in the end plate body 110 may be an FPC, or may be another conductive member. In a particular embodiment, electrical connections 120 may be provided as metal wires. It should be understood that the metal wires can transmit signals, and the metal wires have a small volume, so as to reduce the occupied space of the electrical connector 120 inside the end plate body 110, thereby facilitating other structural designs of the end plate 100 provided in the embodiments of the present application.

Meanwhile, as the electrical connector 120 is fixed in the end plate body 110, the electrical connector 120 does not shake relative to the end plate body 110, and the stability of the connection between the electrical connector 120 and other structural members can be improved, so that the phenomena of welding and the like can be avoided, and the service life can be prolonged.

In another embodiment, referring to the structure shown in fig. 3, the end plate body 110 includes a first sub-plate 1111 and a second sub-plate 1112 which are oppositely disposed, a first recess is formed on a surface of the first sub-plate 1111 facing the second sub-plate 1112, a second recess is formed on a surface of the second sub-plate 1112 facing the first sub-plate 1111, and the second recess cooperates with the first recess to form a receiving space a;

the electrical connector 120 is embedded in the receiving space a.

Specifically, when the end plate 100 provided in this embodiment is assembled, the electrical connector 120 may be first placed in the first recess of the first sub-board 1111 and then the second recess of the second sub-board 1112 is engaged, so that the electrical connector 120 is embedded in the receiving space a formed by the first recess and the second recess.

It should be noted that, by adopting the structural arrangement that the first sub-board 1111 and the second sub-board 1112 are matched to form the accommodating space, the assembly difficulty of the electrical connector 120 and the end plate body 110 can be simplified, so that the preparation efficiency can be improved, and the preparation cost can be reduced. Meanwhile, because the electrical connector 120 is embedded in the accommodating space a, the electrical connector 120 does not shake relative to the end plate body 110, and the stability of the connection between the electrical connector 120 and other structural members can be improved, so that the phenomena of welding and the like are avoided, and the service life is prolonged.

It should be noted that, the first recess may be provided only on the first sub-board 1111 to form the receiving space a by cooperating with the second sub-board 1112, or the second recess may be provided only on the second sub-board 1112 to form the receiving space a by cooperating with the first sub-board 1111. The setting can be specifically carried out according to the requirements, and the detailed description is omitted.

Of course, a single end plate body 110 may be adopted, and the accommodating space a is formed on the end plate body 110 first; then, the electrical connector 120 is embedded in the accommodating space a, which is not described herein again.

In another embodiment, as shown in the structure shown in fig. 4, the endplate body 110 includes a body portion 1113 and a filling portion 1114, the body portion 1113 has a receiving space a for receiving the electrical connector 120; the filling part 1114 is for filling the receiving space a where the electrical connector 120 is mounted.

Specifically, when the header 100 provided in this embodiment is assembled, the electrical connector 120 may be first placed in the receiving space a, and then the filling portion 1114 may be added to fill the receiving space a.

In a specific embodiment, the receiving space a may be formed by a groove. Illustratively, as shown in fig. 4, the groove has openings on the first side surface S1 and the large surface M, and the opening on the large surface M is connected to the opening on the first side surface S1. When the structure shown in fig. 4 is employed, the electrical connector 120 may be directly placed into the accommodation space a from the opening of the groove, and then the accommodation space may be filled with the filling portion 1114.

It should be noted that, by adopting the structural arrangement that the filling portion 1114 and the body portion 1113 cooperate to form the accommodating space, the assembly difficulty of the electrical connector 120 and the end plate body 110 can be simplified, so as to improve the manufacturing efficiency and reduce the manufacturing cost.

With continued reference to the structure shown in fig. 4, it will be appreciated that the recess defines a receiving space a having a volume greater than the volume of the electrical connector 120, and the electrical connector 120 can be easily positioned in the receiving space. After filling portion 1114 fills accommodation space, electrical connector 120 can not take place to rock relative to end plate body 110, can promote the stability of electrical connector 120 and other structure junction to avoid appearing phenomena such as welding, increase of service life.

It should be noted that, since the electrical connector 120 and the end plate body 110 need to be insulated, in one embodiment, an insulating structure may be disposed on the inner wall of the receiving space of the end plate body 110 and/or the electrical connector 120. Illustratively, the insulating structure may be one or more of an insulating coating, an insulating film, or an insulating tape.

In another embodiment, the endplate body 110 is made of an insulating material. It should be understood that the endplate body 110 may be made partially of an insulating material or may be made entirely of an insulating material. When the end plate body 110 is integrally made of an insulating material, the insulating property between the end plate body 110 and the electrical connector 120 may be better improved, and at the same time, the end plate body 110 may also be used as an insulating plate to achieve insulation between batteries or between batteries and a battery case.

Illustratively, when the endplate body 110 is made of an insulating material, the insulating material may be selected to be one or more of PC (polycarbonate), or PP (polypropylene), or a composite of PC and ABS (acrylonitrile butadiene styrene copolymer).

With continued reference to the structures shown in fig. 1 to fig. 4, it should be noted that, on the premise that the arrangement positions of the first connection end and the second connection end of the electrical connection member 120 are determined, the electrical connection member 120 may be arranged in any shape in the end plate body 110, for example, may be arranged along a straight line or a curved line, and is not described herein again.

With continuing reference to the structure shown in fig. 1, embodiments of the present application further provide a battery pack including an end plate 100 provided in any of the above-described aspects.

It should be noted that, in the battery pack provided in the embodiment of the present application, the electrical connector 120 is disposed inside the end plate body 110, and the electrical connector 120 and the end plate body 110 are disposed in an insulating manner. When the battery pack provided by the embodiment of the present application is applied, the end plate 100 may be used to replace a part of the circuit board. Specifically, the device for transmitting the electrical signal in the battery pack may be connected to the first connection end and the second connection end of the electrical connector 120, respectively, to implement signal transmission. On one hand, the structural arrangement can expand the function of the end plate body 110, so that the end plate body 110 has the function of itself and can realize the signal transmission function. On the other hand, when adopting flexible circuit board, flexible circuit board need occupy solitary space, so need consider avoiding and fixed problem of flexible circuit board, electric connector 120 locates inside end plate body 110 in the embodiment of this application, can promote group battery inner structure complexity and reduce the assembly degree of difficulty, simultaneously.

It should be noted that there are many possibilities for the specific structure of the "device for transmitting electrical signals" in the battery pack.

In one embodiment, the battery pack provided by the embodiment of the present application further includes a plug 200, the plug 200 is mounted to the end plate body 110 of the end plate 100, and the plug 200 is electrically connected to the first connection end of the electrical connector 120. It should be understood that the plug 200 is a device for transmitting electrical signals, and specifically, the plug 200 serves as an output end for transmitting signals in the battery to the outside for connecting with an external structure.

Illustratively, as shown in fig. 1, the plug 200 is mounted on the large surface M of the end plate body 110, and the plug 200 is electrically connected to the first connection end of the electrical connector 120 disposed on the large surface M. It should be understood that the end plate body 110 is equivalent to a reinforcing structure, and when the plug connector 200 is connected to the first connection end, the end plate body 110 provides effective support for the first connection end, so as to improve the connection strength between the plug connector 200 and the electrical connector 120.

It should be noted that, when the end plate body 110 provided by the present application is applied, the position of the first connection end on the end plate body 110 may be designed according to the preset position of the plug 200 in the battery pack, so as to improve the applicability.

In addition, it should be understood that the position of the plug 200 is not limited to the position shown in the figures and located on the side of the end plate 100 away from the battery, and in actual operation, the position of the plug 200 may be set according to the space condition in the battery pack, and details are not repeated.

In one embodiment, please continue to refer to the structure shown in fig. 1, the battery pack provided in the embodiment of the present application further includes a signal collecting terminal 300, and the signal collecting terminal 300 is electrically connected to the second connection terminal of the electrical connector 120. It should be understood that the signal collecting terminal 300 is a device for performing electrical signal transmission. Specifically, the signal collecting terminal 300 is used for connecting with a battery or a bus bar to transmit signals in the battery to the outside. For example, as shown in fig. 1, the signal collecting end 300 is located at the upper part of the end plate body 110, and the signal collecting end 300 may be a nickel sheet.

It should be noted that, by using the end plate 100 provided in the embodiment of the present application, the electrical connection between the signal acquisition terminal 300 and the plug 200 located at different positions can be achieved, so as to save the internal space of the battery pack and simplify the structure.

In one embodiment, the connector further includes an external connector, and the signal collecting terminal 300 is electrically connected to the electrical connector 120 through the external connector.

It should be noted that, since the signal collecting terminal 300 may be located far from the second connection terminal, the external connection member 400 may be further used to connect the second connection terminal and the signal collecting terminal 300.

It is noted that the external connector 400 and the internal electrical connector 120 of the endplate 100 may be of the same or different configurations. Illustratively, the external connector 400 and the electrical connector 120 are continuous wires; alternatively, the external connector 400 is FPC and the electrical connector 120 is FPC; alternatively, the external connector 400 is an FPC, and the electrical connector 120 is a metal wire.

In one embodiment, the battery pack may be a battery module or a battery pack.

The battery module includes a plurality of batteries, wherein the plurality of batteries are stacked, and end plates 100 and side plates for fixing the plurality of batteries.

The battery pack includes a plurality of batteries and a battery case for fixing the plurality of batteries, and an end plate 100 may be provided between the batteries and the battery case.

It should be noted that the battery pack includes a plurality of batteries, and the plurality of batteries are disposed in the battery box. Wherein, a plurality of batteries can form and install in the battery box behind the battery module, and at this moment, the battery module can be including the end plate 100 and the curb plate of fixed a plurality of batteries. Alternatively, a plurality of batteries may be directly disposed in the battery box, that is, a plurality of batteries need not to be grouped, and at this time, the end plate 100 may be disposed between the batteries and the battery box.

The battery includes a cell and an electrolyte, and a minimum unit capable of performing an electrochemical reaction such as charge/discharge. The battery cell refers to a unit formed by winding or laminating a stack 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. Wherein the polarities of the first electrode and the second electrode can be interchanged.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims. It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (11)

1. An end plate (100), comprising: an end plate body (110), one large face of the end plate body (110) being for being disposed toward a large face of a battery; the battery pack is characterized in that at least one electric connecting piece (120) is arranged in the end plate body (110), the electric connecting piece (120) and the end plate body (110) are arranged in an insulating mode, the electric connecting piece (120) is provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end are used for being connected with a device for electric signal transmission in the battery pack.

2. The end plate (100) of claim 1, wherein the end plate body (110) has a first surface and a second surface, and the first surface is non-coplanar with the second surface;

the first connecting end can be connected with a device for electric signal transmission in the battery pack from the first surface, and the second connecting end can be connected with a device for electric signal transmission in the battery pack from the second surface.

3. The end plate (100) of claim 2, wherein the end plate body (110) is a one-piece molded structure.

4. The end plate (100) of claim 3, wherein the electrical connection (120) is a wire.

5. The end panel (100) of claim 2, wherein the end panel body (110) comprises a first sub-panel (1111) and a second sub-panel (1112) in opposing arrangement, wherein,

the first sub-board (1111) and/or the second sub-board (1112) are/is provided with a recess, so that the first sub-board (1111) and the second sub-board (1112) are matched to form a containing space;

the electric connector (120) is embedded in the accommodating space.

6. The end plate (100) according to claim 2, wherein the end plate body (110) comprises a body portion (1113) and a filling portion (1114), the body portion (1113) having a receiving space for receiving the electrical connector (120); the filling part (1114) is used for filling the accommodating space where the electric connector (120) is installed.

7. The end plate (100) according to any of claims 1-6, wherein the end plate body (110) is made of an insulating material.

8. A battery, characterized in comprising an end plate (100) according to any of claims 1-7.

9. The battery pack according to claim 8, further comprising a plug (200), wherein the plug (200) is mounted to an end plate body (110) of the end plate (100), and the plug (200) is electrically connected to a first connection end of an electrical connector (120) in the end plate body (110).

10. The battery according to claim 9, further comprising a signal acquisition terminal (300), the signal acquisition terminal (300) being electrically connected with the second connection terminal of the electrical connector (120).

11. The battery pack according to claim 10, further comprising an external connector (400), wherein the signal acquisition terminal (300) and the electrical connector (120) are electrically connected through the external connector (400).

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