CN221057486U

CN221057486U - Cable type connector protection device of battery, battery and electricity utilization device

Info

Publication number: CN221057486U
Application number: CN202290000388.3U
Authority: CN
Inventors: 谌启财; 王冲; 郑陈铃
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2024-05-31
Anticipated expiration: 2032-02-23
Also published as: WO2023159397A1

Abstract

The application provides a cable connecting piece protection device of a battery, the battery and an electric device, wherein the battery comprises a main body part and a connecting part; the connecting portion is connected to the main body portion, and the connecting portion includes a first portion for connecting with a cable-like connector of the battery and a second portion connecting the first portion and the main body portion, wherein the second portion is configured to deform when the cable-like connector moves to release stress between the first portion and the cable-like connector. Thus, the application solves the problem of higher battery cost in the prior art.

Description

Cable type connector protection device of battery, battery and electricity utilization device

Technical Field

The application relates to the technical field of batteries, in particular to a cable connector protecting device of a battery, the battery and an electricity utilization device.

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles.

In battery technology, how to reduce the manufacturing cost of batteries is a hot spot direction of current research.

Disclosure of Invention

In view of the above, the present application provides a cable connector protection device for a battery, a battery and an electric device, which can reduce the cost of the battery.

In a first aspect, the present application provides a cable-like connector protection device for a battery, including a main body portion and a connection portion. The connecting portion is connected to the main body portion, and the connecting portion includes a first portion and a second portion, and the first portion is used for being connected with the cable class connecting piece of battery, and the second portion is connected first portion and main body portion. The second portion is configured to deform when the cable-like connector moves to relieve stress between the first portion and the cable-like connector.

In the embodiment, the cable connecting piece protection device is low in cost and small in occupied space, so that the cost of the battery can be effectively reduced, and the energy density of the battery is improved. When the cable type connecting piece is moved relative to the cable type connecting piece protecting device due to vibration, expansion or other reasons of the battery monomer, the second part can release the stress generated between the first part and the cable type connecting piece through deformation, so that the risk of tearing of the cable type connecting piece protecting device is reduced, the cable type connecting piece protecting device can accurately detect the state of the battery monomer, and the safety is improved.

In some embodiments, at least part of the second portion is bent to one side of the body portion in the thickness direction. The first portion is connected to an end of the second portion remote from the main body portion and is bent with respect to the second portion.

Therefore, at least part of the second part is bent to one side of the main body part along the thickness direction, and when the battery cell expands, the cable connecting piece moves, so that the at least part of the bent part of the second part is compressed to release the stress.

In some embodiments, the body portion is provided with a channel extending through the body portion in a thickness direction. One end of the second part is connected to the wall of the channel, and the other end of the second part is bent to one side of the main body part, which is away from the cable connecting piece in the thickness direction, and is connected to the first part. The end of the first portion remote from the second portion is adapted to pass through the passageway and connect with a cable-like connector.

The first part is far away from one end of the second part and penetrates through the channel and is connected with the cable type connecting piece, so that the cable type connecting piece is more firmly and stably connected with the connecting part.

In some embodiments, the channel comprises a through hole.

The through holes are arranged to serve as channels, so that the space of the cable connecting piece protection device of the battery can be fully utilized, more channels can be arranged on the cable connecting piece protection device of the battery, and the requirement of arranging a plurality of connecting parts is met.

In some embodiments, the connection is provided in plurality.

Thus, the cable connector protection device of the battery can be connected with a plurality of cable connectors. The lengths of the plurality of connection parts may be the same or different according to the positions and shapes of the cable-type connection parts.

In some embodiments, the body portion includes: and a third part for connection with a connector of the battery. And the fourth part is connected with the third part and is bent relative to the third part. And a fifth part connected to one end of the fourth part far from the third part and bent relative to the fourth part, and the connecting part is connected with the fifth part.

The fourth part is bent relative to the third part, and the fifth part is bent relative to the fourth part, so that the structural strength of the cable connecting piece protection device of the battery is improved. The connecting part is arranged on the fifth part, so that the processing is easy.

In some embodiments, the fifth portion and the fourth portion are each a plurality, each fourth portion connecting a corresponding fifth portion and third portion. Each fifth part is connected with a connecting part.

So set up, every fifth part connects one row of cable class connecting piece, sets up a plurality of fifth parts and can connect multirow cable class connecting piece, and the fourth part is used for connecting fifth part and third part and reinforcing fifth part's structural strength. Correspondingly, when the fifth portion is provided in plural, the fourth portion may be provided in plural.

In some embodiments, the first portion includes a plurality of spaced apart conductor portions for connection to a cable-type connector.

The plurality of conductor parts are connected with the cable connecting piece, and can be used for realizing functions such as voltage detection and temperature detection.

In a second aspect, the present application provides a battery comprising: and (3) a battery cell. The cable type connecting piece is used for being connected with the battery monomer. And the cable connector protecting device in the above embodiment, wherein the first portion is connected to the cable connector.

In some embodiments, at least a portion of the cable-like connection is located between the battery cell and the body portion. One end of the second part is connected to the main body part, and the other end of the second part is bent to one side of the main body part away from the cable connecting piece and connected to the first part. The first part is bent towards the cable-type connecting piece relative to the second part and is connected with the cable-type connecting piece.

In a third aspect, the present application provides an electric device, including a battery in the above embodiment, where the battery is used to provide electric energy.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

In the drawings, the drawings are not drawn to scale.

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the application;

Fig. 2 is an exploded view of a battery according to some embodiments of the present application;

Fig. 3 is a schematic view of a battery according to some embodiments of the present application;

Fig. 4 is an exploded view of a battery according to some embodiments of the present application;

FIG. 5 is a top view of a cable-type connector protection device for a battery according to some embodiments of the present application;

Fig. 6 is a schematic structural view of a cable-like connector protection device for a battery according to some embodiments of the present application;

FIG. 7 is an enlarged schematic view of FIG. 6 at A;

FIG. 8 is an enlarged schematic view at B in FIG. 6;

FIG. 9 is an enlarged schematic view of FIG. 6 at C;

FIG. 10 is a schematic view of a cable-type connector protection device for a battery prior to processing according to some embodiments of the present application;

Fig. 11 is a cross-sectional view of a cable-like connector protection device for a battery prior to processing in accordance with some embodiments of the present application.

A vehicle 1000;

Battery 100, controller 200, motor 300;

a case 10, a first case portion 11, and a second case portion 12;

a battery cell 20;

The cable-like connector protection device 30 of the battery, the connection portion 31, the first portion 311, the conductor portion 311a, the second portion 312, the channel 313;

a main body portion 32, a third portion 321, a fourth portion 322, a fifth portion 323;

A conductor 30a, an insulating film 30b;

A cable-like connector 40;

a connector 50.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

The battery comprises a plurality of battery monomers, the plurality of battery monomers can be connected in series, in parallel or in series-parallel through cable connectors, and the series-parallel connection means that the plurality of battery monomers are connected in series or in parallel. In the working process of the battery, voltage detection and temperature detection are required to be carried out on the battery monomer so as to adjust the battery monomer in real time.

In the related art, a battery generally uses a circuit board to collect information of current, voltage, etc. of a battery cell. However, the inventors noted that the high cost and large space occupied by the circuit board resulted in a battery with limited energy density and high cost, which did not conform to the current trend of battery development.

The cable-type connector protection device (e.g., a flexible flat cable-type connector protection device) is a low-cost device, and the inventor tries to use the cable-type connector protection device instead of a circuit board to save the manufacturing cost of a battery and save space. Typically, the cable-type connector protection device is connected to the cable-type connector. However, the inventor notices that the strength of the cable type connector protecting device is lower, when the battery vibrates, the cable type connector protecting device and the cable type connector relatively move, and the joint of the cable type connector protecting device and the cable type connector has the risk of tearing; when the cable type connecting piece protection device is torn, the power utilization device cannot accurately detect the state of the battery monomer, so that potential safety hazards are caused.

In view of this, an embodiment of the present application provides a cable-type connector protection device, including a main body portion and a connection portion, the connection portion being connected to the main body portion, the connection portion including a first portion for connection with a cable-type connector of a battery and a second portion connecting the first portion and the main body portion, wherein the second portion is configured to deform when the cable-type connector moves to release stress between the first portion and the cable-type connector. The cable connecting piece protection device has low cost and small occupied space, thereby effectively reducing the cost of the battery and improving the energy density of the battery. According to the application, when the battery vibrates, the stress between the cable connecting piece protecting device and the cable connecting piece is released through deformation, so that the risk of tearing of the cable connecting piece protecting device is reduced, the state of the battery monomer is accurately detected, and the safety is improved.

The cable connector protection device disclosed by the embodiment of the application can be used in batteries of electric devices such as vehicles, ships or aircrafts, but is not limited to the electric devices. The power supply system with the cable connector protection device, the battery and the like can be used for forming the power utilization device, so that the use cost of the battery can be effectively reduced.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following embodiment will take an electric device according to an embodiment of the present application as an example of the vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 100 is provided in the interior of the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may be used as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 100 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present application. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. The case 10 is used to provide an accommodating space for the battery cell 20, and the case 10 may have various structures. In some embodiments, the case 10 may include a first case portion 11 and a second case portion 12, the first case portion 11 and the second case portion 12 being overlapped with each other, the first case portion 11 and the second case portion 12 together defining an accommodating space for accommodating the battery cell 20. The second box 12 may have a hollow structure with an opening at one end, the first box 11 may have a plate-like structure, and the first box 11 covers the opening side of the second box 12, so that the first box 11 and the second box 12 define an accommodating space together; the first housing 11 and the second housing 12 may each have a hollow structure with one side open, and the open side of the first housing 11 may be closed to the open side of the second housing 12. Of course, the case 10 formed by the first case portion 11 and the second case portion 12 may be of various shapes, such as a cylinder, a rectangular parallelepiped, or the like.

In the battery 100, the plurality of battery cells 20 may be connected in series, parallel or a series-parallel connection, wherein the series-parallel connection refers to that the plurality of battery cells 20 are connected in series or parallel. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting a plurality of battery cells 20 in series or parallel or series-parallel connection, and a plurality of battery modules are then connected in series or parallel or series-parallel connection to form a whole and are accommodated in the case 10. The battery 100 may also include other structures, for example, the battery 100 may also include cable-type connectors for making electrical connection between the plurality of battery cells 20.

Wherein each battery cell may be a secondary battery or a primary battery; but not limited to, lithium sulfur battery cells, sodium ion battery cells, or magnesium ion battery cells. The battery cell 20 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

Referring to fig. 3 to 6, in a first aspect, the present application provides a cable-type connector protection device 30 for a battery, comprising: a main body portion 32 and a connection portion 31, the connection portion 31 being connected to the main body portion 32, the connection portion 31 comprising a first portion 311 and a second portion 312, the first portion 311 being for connection with a cable-like connector 40 of a battery, the second portion 312 connecting the first portion 311 and the main body portion 32, wherein the second portion 312 is configured to deform when the cable-like connector 40 moves to release stress between the first portion 311 and the cable-like connector 40.

The cable-type connector 40 is a power connection structure of a battery. The number of the cable-type connectors 40 may be plural, and the plurality of cable-type connectors 40 are used to connect a plurality of battery cells of the battery in series, parallel or series-parallel. Illustratively, the cable-type connector 40 may be an aluminum sheet or a copper sheet, and the material of the cable-type connector 40 may be copper, a copper alloy, aluminum or an aluminum alloy.

The cable-like connector protection device 30 of the battery is a control line connection structure. The cable-like connector 40 and the cable-like connector protector can be combined into a thin, unitary connector 50 using laser welding and thermal compression techniques. The cable-type connector 40 is connected with the battery cell, and the cable-type connector 40 is located between the battery cell and the cable-type connector protection device 30 of the battery.

When the battery cell vibrates or expands, the cable-type connector 40 moves under the influence of the expansion of the battery cell, and stress is generated between the first portion 311 and the cable-type connector 40. In an embodiment of the present application, when the cable 40 moves, the second portion 312 can be elastically deformed to absorb the stress generated by the cable 40. Illustratively, when the cable-type connector 40 moves, the second portion 312 is positioned between the cable-type connector 40 and the body portion 32, and the direction of deformation of the second portion 312 is consistent with the direction of movement of the cable-type connector 40, i.e., the second portion 312 is compressed between the body portion 32 and the cable-type connector 40.

In this embodiment, when the cable-type connector 40 moves relative to the cable-type connector protection device due to vibration, expansion or other reasons of the battery cell, the second portion 312 can release the stress generated between the first portion 311 and the cable-type connector 40 through deformation, so as to reduce the risk of tearing the cable-type connector protection device, and enable the cable-type connector protection device to accurately detect the state of the battery cell, thereby improving the safety.

Referring to fig. 7, in some embodiments, at least a portion of the second portion 312 is bent to one side of the main portion 32 in the thickness direction, and the first portion 311 is connected to an end of the second portion 312 away from the main portion 32 and is bent relative to the second portion 312.

As shown in fig. 7, the Y direction is the longitudinal direction of the main body 32, the X direction is the width direction, and the Z direction is the thickness direction, and the second portion 312 is at least partially folded to one side of the main body 32 in the thickness direction.

Notably, the first portion 311 and the second portion 312 are integrally provided. In some embodiments, the connecting portion 31 is disposed in a Z-shape, that is, the second portion 312 is bent once, and the first portion 311 is connected to an end of the second portion 312 away from the main body portion 32 and is bent with respect to the second portion 312. In another embodiment, the second portion 312 may also be bent multiple times. The shape capable of deforming to release the stress generated between the first portion 311 and the cable-like connector 40 is only required.

In this way, at least part of the second portion 312 is bent to one side of the body portion 32 in the thickness direction, and when the battery cell expands, the cable-like connector 40 moves, so that the at least part of the bent portion of the second portion 312 is compressed to release the stress.

Referring to fig. 7 and 8, in some embodiments, the main body 32 is provided with a channel 313, and the channel 313 penetrates the main body 32 in the thickness direction; one end of the second portion 312 is connected to the wall of the channel 313, and the other end of the second portion 312 is bent to the side of the main body portion 32 facing away from the cable-like connector 40 in the thickness direction and connected to the first portion 311; the end of the first portion 311 remote from the second portion 312 is adapted to pass through the channel 313 and connect with the cable-like connection 40.

Illustratively, the walls of the channel 313 refer to the inner walls of the channel 313 in a direction parallel to the width direction.

The arrangement is such that the end of the first portion 311 away from the second portion 312 passes through the channel 313 and is connected with the cable type connector 40, so that the connection between the cable type connector 40 and the connection portion 31 is more firm and stable.

In some embodiments, channel 313 includes a through hole.

The through hole means a hole provided in the main body 32 penetrating the main body 32. In another embodiment, the channel 313 may also be provided on the lateral side of the main body 32 in the width direction. The channel 313 may further include a notch provided on a widthwise side of the main body 32, which has the advantage of easy processing.

The through holes are provided as the channels 313, so that the space of the cable connector protection device 30 of the battery can be fully utilized, and more channels 313 can be provided on the cable connector protection device 30 of the battery, thereby meeting the requirement of providing a plurality of connecting parts 31.

In some embodiments, the connection portion 31 is provided in plurality.

In this way, the cable connector protection device 30 for a battery can connect a plurality of cable connectors 40. The lengths of the plurality of connection parts 31 may be the same or different depending on the positions and shapes of the cable-type connectors 40.

Referring to fig. 9, in some embodiments, the main body 32 includes: a third portion 321 for connection with the connector 50 of the battery; a fourth portion 322 connected to the third portion 321 and bent with respect to the third portion 321; and a fifth portion 323 connected to an end of the fourth portion 322 remote from the third portion 321 and bent with respect to the fourth portion 322, the connection portion 31 being connected to the fifth portion 323.

So configured, the fourth portion 322 is bent with respect to the third portion 321, and the fifth portion 323 is bent with respect to the fourth portion 322, which is beneficial to increasing the structural strength of the cable-type connector protection device 30 of the battery. The connection portion 31 is provided in the fifth portion 323, which also has an advantage of easy processing.

In some embodiments, the fifth portion 323 and the fourth portion 322 are each a plurality, each fourth portion 322 connecting a corresponding fifth portion 323 and third portion 321; each fifth portion 323 is connected with a connecting portion 31.

So arranged, each fifth portion 323 is connected with a row of cable-like connectors 40, a plurality of fifth portions 323 are arranged to connect a plurality of rows of cable-like connectors 40, and fourth portions 322 are arranged to connect fifth portions 323 with third portions 321 and to enhance the structural strength of fifth portions 323. Correspondingly, when the fifth portion 323 is provided in plurality, the fourth portion 322 may be provided in plurality.

In some embodiments, the first portion 311 includes a plurality of conductor portions 311a disposed at intervals, the plurality of conductor portions 311a being for connection with the cable-type connector 40.

In this way, the plurality of conductor portions 311a are connected to the cable-type connector 40, and can be used for realizing functions such as voltage detection and temperature detection.

In a second aspect, the present application provides a battery comprising: a battery cell; a cable-type connector 40 for connection with the battery cell; and the cable-like connector protecting device in the above embodiment, the first portion 311 is connected to the cable-like connector 40.

In some embodiments, at least a portion of the cable-type connector 40 is located between the battery cell and the body portion 32; one end of the second portion 312 is connected to the main body portion 32, and the other end of the second portion 312 is bent to a side of the main body portion 32 away from the cable-like connector 40 and connected to the first portion 311; the first portion 311 is bent toward the cable-like connector 40 with respect to the second portion 312 and is connected to the cable-like connector 40.

According to some embodiments of the present application, referring to fig. 6 and 7, the present application proposes a cable-like connector protection device 30 for a battery, where the cable-like connector protection device 30 for a battery has a main body portion 32 and a connecting portion 31, and the connecting portion 31 is disposed in a Z-shape, that is, the connecting portion 31 includes a first portion 311 disposed horizontally and a second portion 312 disposed in a bent shape. When the battery expands during use, the cable-like connector 40 moves under the influence of the expansion of the battery, and the second portion 312 deforms when the cable-like connector 40 moves, so as to release the stress between the first portion 311 and the cable-like connector 40.

Referring to fig. 10 to 11, the cable-like connector protection device 30 of the battery according to the present application may be an FFC flexible flat cable-like connector protection device. Which is formed by laminating three layers of insulating films 30b, a plurality of conductors 30a and insulating films 30 b. In one embodiment, the conductor 30a is a copper conductor 30a, the insulating film 30b is a PET film, and the connection portion 31 is formed by folding one or more of the conductors 30 a.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cable-like connector protection device for a battery, comprising:

A main body portion;

A connection part connected to the main body part, the connection part including a first part for connection with a cable-type connection member of the battery connected to the cable-type connection member protection device, and a second part for connection between the first part and the main body part,

Wherein the second portion is configured to deform when the cable-like connector connected to the cable-like connector protection device moves to relieve stress between the first portion and the cable-like connector connected to the cable-like connector protection device.

2. The cable-type connector protection device according to claim 1, wherein at least part of the second portion is bent to one side of the main body portion in a thickness direction, and the first portion is connected to an end of the second portion remote from the main body portion and is bent with respect to the second portion.

3. The cable-like connector protection device according to claim 2, wherein the main body portion is provided with a passage penetrating through the main body portion in the thickness direction;

One end of the second part is connected to the wall of the channel, and the other end of the second part is bent to one side of the main body part, which is away from the cable-like connecting piece along the thickness direction, and is connected to the first part;

The end of the first part far away from the second part is used for penetrating through the channel and connecting with the cable type connecting piece.

4. A cable-type connector protection device according to claim 3, wherein said channel includes a through hole.

5. The cable-type connector protection device according to any one of claims 1 to 4, wherein the connection portion is provided in plurality.

6. The cable-type connector protection device according to any one of claims 1 to 5, wherein the main body portion includes:

a third portion for connection with a connector of the battery;

a fourth portion connected to the third portion and bent with respect to the third portion; and

And the fifth part is connected to one end of the fourth part far away from the third part and is bent relative to the fourth part, and the connecting part is connected with the fifth part.

7. The cable-type connector protection device of claim 6, wherein the fifth portion and the fourth portion are each plural, each of the fourth portions connecting the corresponding fifth portion and third portion;

Each fifth part is connected with the connecting part.

8. The cable-type connector protection device according to any one of claims 1-7, wherein the first portion includes a plurality of conductor portions disposed at intervals, a plurality of the conductor portions being for connection with the cable-type connector.

9. A battery, comprising:

A battery cell;

the cable connecting piece is used for being connected with the battery monomer; and

The cable-type connector protector according to any one of claims 1-8, wherein the first portion is connected to the cable-type connector.

10. The battery of claim 9, wherein at least a portion of the cable-like connector is located between the battery cell and the body portion;

One end of the second part is connected with the main body part, and the other end of the second part is bent to one side of the main body part, which is away from the cable connecting piece, and is connected with the first part;

The first part is bent towards the cable-type connecting piece relative to the second part and is connected with the cable-type connecting piece.

11. An electrical device comprising a battery according to claim 9 or 10 for providing electrical energy.