WO2023159397A1

WO2023159397A1 - Battery cable-type connector protection device, battery, and electrical device

Info

Publication number: WO2023159397A1
Application number: PCT/CN2022/077492
Authority: WO
Inventors: 谌启财; 王冲; 郑陈铃
Original assignee: 宁德时代新能源科技股份有限公司
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2023-08-31
Also published as: CN221057486U

Abstract

Provided in the present application are a battery cable-type connector protection device, a battery and an electrical device. The battery comprises a body portion and a connecting portion; and the connecting portion is connected to the body portion and comprises a first part and a second part, the first part is used for being connected to a cable-type connector of the battery, the second part is connected to the first part and the body portion, wherein the second part is configured to deform when the cable-type connector moves, so as to release the stress between the first part and the cable-type connector. Therefore, the problem of the prior art that the battery cost is high is solved.

Description

Battery cable connector protection device, battery and electrical device

technical field

The present application relates to the technical field of batteries, and more specifically, to a battery cable connector protection device, a battery, and an electrical device.

Background technique

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

In battery technology, how to reduce the cost of battery manufacturing is a hot research direction at present.

Contents of the invention

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

In a first aspect, the present application provides a battery cable connector protection device, which includes a main body and a connection part. The connection part is connected to the main body, and the connection part includes a first part and a second part, the first part is used to connect with the cable connector of the battery, and the second part connects the first part and the main body. The second portion is configured to deform when the cable-like connection moves to relieve stress between the first portion and the cable-like connection.

In this embodiment, the cable connector protection device is low in cost and occupies a small space, which can effectively reduce the cost of the battery and increase the energy density of the battery. When the cable-type connector moves relative to the cable-type connector protection device due to battery cell vibration, expansion or other reasons, the second part can release the stress generated between the first part and the cable-type connector through deformation, Therefore, the risk of tearing of the cable connector protection device is reduced, and the cable connector protection device can accurately detect the state of the battery cell, thereby improving safety.

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

In this way, at least part of the second part is bent to one side of the main body along the thickness direction, and when the cell expands, the cable-type connector moves, so that at least part of the second part is compressed to release the stress .

In some embodiments, the main body is provided with a channel, and the channel passes through the main body along 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 the side of the main body away from the cable-type connector along the thickness direction and connected to the first part. An end of the first part far away from the second part is used to pass through the channel and be connected with a cable type connector.

The arrangement is such that the end of the first part away from the second part passes through the channel and is connected with the cable connector, so that the connection between the cable connector and the connecting part is more firm and stable.

In some embodiments, the channel includes a via.

Setting through holes as passages can make full use of the space of the battery cable connector protection device, and more passages can be provided on the battery cable connector protection device, thereby satisfying the requirement for arranging multiple connection parts.

In some embodiments, there are multiple connecting parts.

In this way, the battery cable connector protection device can connect multiple cable connectors. According to the position and shape of the cable connector, the lengths of the multiple connecting parts may be the same or different.

In some embodiments, the main body includes: a third part for connecting with the connector of the battery. The fourth part is connected to the third part and bent relative to the third part. and a fifth part, connected to an end of the fourth part away from the third part and bent relative to the fourth part, and the connecting part is connected to the fifth part.

In this way, the fourth part is bent relative to the third part, and the fifth part is bent relative to the fourth part, which is beneficial to increase the structural strength of the battery cable connector protection device. The connecting part is arranged on the fifth part, which also has the advantage of being easy to process.

In some embodiments, there are multiple fifth parts and fourth parts, and each fourth part is connected to the corresponding fifth part and third part. Each fifth part is connected with a connection part.

In this way, each fifth part is connected to a row of cable connectors, multiple fifth parts can be connected to multiple rows of cable connectors, and the fourth part is used to connect the fifth part and the third part and strengthen the fifth part. part of the structural strength. Correspondingly, when there are multiple fifth parts, there may also be multiple fourth parts.

In some embodiments, the first part includes a plurality of conductor parts arranged at intervals, and the plurality of conductor parts are used for connecting with cable-like connectors.

In this arrangement, multiple conductors are connected to the cable connectors, which can be used to realize functions such as voltage detection and temperature detection, respectively.

In a second aspect, the present application provides a battery, including: a battery cell. The cable connector is used for connecting with the battery cell. As well as the cable connector protection device in the above embodiment, the first part is connected to the cable connector.

In some embodiments, at least part of the cable-like connector is located between the battery cells and the main body. One end of the second part is connected to the main body, and the other end of the second part is bent to the side of the main body away from the cable connector and connected to the first part. Relative to the second part, the first part is bent towards the cable connector and connected to the cable connector.

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

The above description is only an overview of the technical solution of the present application. In order to better understand the technical means of the present application, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable , the following specifically cites the specific implementation manner of the present application.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present application. Obviously, the accompanying drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on the accompanying drawings on the premise of not paying creative efforts.

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

FIG. 1 is a schematic structural view of a vehicle in some embodiments of the present application;

FIG. 2 is a schematic diagram of an exploded structure of a battery in some embodiments of the present application;

FIG. 3 is a schematic structural diagram of a battery in some embodiments of the present application;

Figure 4 is an exploded view of the battery of some embodiments of the present application;

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

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

Fig. 7 is the enlarged schematic diagram of place A in Fig. 6;

Fig. 8 is the enlarged schematic diagram of place B in Fig. 6;

Fig. 9 is an enlarged schematic diagram of place C in Fig. 6;

Fig. 10 is a schematic structural diagram of a cable connector protection device for a battery before processing according to some embodiments of the present application;

Fig. 11 is a cross-sectional view of a cable connector protection device for a battery before processing according to some embodiments of the present application.

vehicle 1000;

battery 100, controller 200, motor 300;

A box body 10, a first box body part 11, and a second box body part 12;

battery cell 20;

Battery cable connector protection device 30, connection part 31, first part 311, conductor part 311a, second part 312, channel 313;

The main body 32, the third part 321, the fourth part 322, the fifth part 323;

conductor 30a, insulating film 30b;

Cable connector 40;

Connector 50.

Detailed ways

Embodiments of the technical solutions of the present application will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples, rather than limiting the protection scope of the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to To limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the description of the above drawings are intended to cover a non-exclusive inclusion.

In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and should not be understood as indicating or implying relative importance or implicitly indicating the number, specificity, or specificity of the indicated technical features. Sequence or primary-secondary relationship. In the description of the embodiments of the present application, "plurality" means two or more, unless otherwise specifically defined.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase 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. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiment of the present application, the term "and/or" is only a kind of association relationship describing associated objects, which means that there may be three kinds of relationships, such as A and/or B, which may mean: A exists alone, and A exists at the same time and B, there are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two groups (including two), and "multiple pieces" refers to More than two pieces (including two pieces).

In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical" "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Radial", "Circumferential", etc. indicate the orientation or positional relationship based on the drawings Orientation or positional relationship is only for the convenience of describing the embodiment of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as an implementation of the present application. Example limitations.

In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a fixed connection. Disassembled connection, or integration; it can also be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

At present, judging from the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydraulic, thermal, wind and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, as well as military equipment and aerospace and other fields . With the continuous expansion of power battery application fields, its market demand is also constantly expanding.

The battery includes multiple battery cells, and multiple battery cells can be connected in series, parallel or mixed through cable connectors. Mixed connection means that multiple battery cells are connected in series and in parallel. During the working process of the battery, it is necessary to detect the voltage and temperature of the battery cells to adjust the battery cells in real time.

In related technologies, a battery usually uses a circuit board to collect information such as current and voltage of a battery cell. However, the inventor noticed that the cost of the circuit board is high and the space occupied is large, which results in limited energy density and high cost of the battery, which is not in line with the current development trend of batteries.

The cable connector protection device (such as a flexible flat cable connector protection device) is a low-cost device. The inventors tried to use the cable connector protection device instead of the circuit board to save the manufacturing cost of the battery and save space. Usually, the cable connector protection device is connected to the cable connector. However, the inventor noticed that the strength of the cable connector protection device is relatively low. When the battery vibrates, the cable connector protection device and the cable connector move relatively, and there is a tear at the connection between the two. Risk; when the protective device of the cable connector is torn, the electrical device cannot accurately detect the state of the battery cell, thus causing a safety hazard.

In view of this, an embodiment of the present application provides a cable connector protection device, which includes a main body and a connecting portion, the connecting portion is connected to the main body, the connecting portion includes a first part and a second part, and the first part is used for connecting with the battery The cable-type connector is connected, and the second part connects the first part and the main body, wherein the second part is configured to deform when the cable-type connector moves, so as to release the stress between the first part and the cable-type connector . The protection device for cable connectors of the present application is low in cost and occupies a small space, thereby effectively reducing the cost of the battery and increasing the energy density of the battery. The application can release the stress between the cable connector protection device and the cable connector protection device through deformation when the battery vibrates, reducing the risk of tearing the cable connector protection device, thereby accurately detecting the battery cell state, improving security.

The cable connector protection device disclosed in the embodiments of the present application can be used, but not limited to, in batteries of electric devices such as vehicles, ships or aircrafts. A power supply system comprising the electric device can be composed of the cable connector protection device disclosed in the present application, a battery, etc., so that the cost of using the battery can be effectively reduced.

The embodiment of the present application provides an electric device using a battery as a power source. The electric device can be, but 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, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric boat toys, electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, spaceships, etc.

In the following embodiments, for the convenience of description, a vehicle 1000 as an electric device according to an embodiment of the present application is taken as an example for description.

Please refer to FIG. 1 , which is a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle. The interior of the vehicle 1000 is provided with a battery 100 , and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000 . The battery 100 can be used for power supply of the vehicle 1000 , for example, the battery 100 can be used as an operating power source of the vehicle 1000 . The vehicle 1000 may further include a controller 200 and a motor 300 , the controller 200 is used to control the battery 100 to supply power to the motor 300 , for example, for starting, navigating and running the vehicle 1000 .

In some embodiments of the present application, the battery 100 can not only be used as an operating power source for the vehicle 1000 , but can also be used as a driving power source for the vehicle 1000 , replacing or partially replacing fuel oil or natural gas to provide driving power for the vehicle 1000 .

Please refer to FIG. 2 . FIG. 2 is a schematic explosion diagram of a battery 100 provided by some embodiments of the present application. The battery 100 includes a case 10 and battery cells 20 housed in the case 10 . Wherein, the box body 10 is used to provide accommodating space for the battery cells 20 , and the box body 10 may adopt various structures. In some embodiments, the box body 10 may include a first box body part 11 and a second box body part 12, the first box body part 11 and the second box body part 12 cover each other, the first box body part 11 and the second box body part 12 The two box parts 12 jointly define an accommodating space for accommodating the battery cells 20 . The second box part 12 can be a hollow structure with an open end, and the first box part 11 can be a plate-shaped structure, and the first box part 11 covers the opening side of the second box part 12, so that the first box The body portion 11 and the second box body portion 12 jointly define an accommodating space; the first box body portion 11 and the second box body portion 12 can also be hollow structures with one side opening, and the opening side of the first box body portion 11 Cover the opening side of the second box part 12 . Certainly, the box body 10 formed by the first box body part 11 and the second box body part 12 may be in various shapes, such as a cylinder, a cuboid, and the like.

In the battery 100 , there may be multiple battery cells 20 , and the multiple battery cells 20 may be connected in series, in parallel or in parallel. The mixed connection means that the multiple battery cells 20 are connected in series and in parallel. A plurality of battery cells 20 can be directly connected in series, in parallel or mixed together, and then the whole composed of a plurality of battery cells 20 is housed in the box 10; of course, the battery 100 can also be a plurality of battery cells 20 The battery modules are firstly connected in series or parallel or in combination, and then multiple battery modules are connected in series or in parallel or in combination to form a whole, which is accommodated in the case 10 . The battery 100 may also include other structures, for example, the battery 100 may also include a cable-type connector for realizing electrical connection between a plurality of battery cells 20 .

Wherein, each battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, but not limited thereto. The battery cell 20 may be in the form of a cylinder, a flat body, a cuboid or other shapes.

Please refer to FIG. 3 to FIG. 6. In the first aspect, the present application provides a battery cable connector protection device 30, including: a main body 32 and a connecting portion 31, the connecting portion 31 is connected to the main body 32, and the connecting portion 31 includes a first part 311 and a second part 312, the first part 311 is used to connect with the cable connector 40 of the battery, the second part 312 connects the first part 311 and the main body part 32, wherein the second part 312 is configured to The cable-type connector 40 deforms when moving, so as to release the stress between the first portion 311 and the cable-type connector 40 .

The cable connector 40 is a power connection structure of the battery. There may be multiple cable connectors 40, and the multiple cable connectors 40 are used to connect multiple battery cells of the battery in series, in parallel or in combination. Exemplarily, the cable connector 40 may be an aluminum sheet or a copper sheet, and the material of the cable connector 40 may be copper, copper alloy, aluminum or aluminum alloy.

The battery cable connector protection device 30 is a control wire connection structure. The cable connector 40 and the cable connector protection device can be combined into a very light and thin overall connector 50 by using laser welding and thermocompression technology. The cable connector 40 is connected to the battery cell, and the cable connector 40 is located between the battery cell and the cable connector protection device 30 of the battery.

When the battery cell vibrates or expands, the cable connector 40 moves due to the expansion of the battery cell, and stress is generated between the first part 311 and the cable connector 40 . In the embodiment of the present application, when the cable connector 40 moves, the second portion 312 can be elastically deformed to absorb the stress generated by the cable connector 40 . Exemplarily, when the cable connector 40 moves, the second part 312 is located between the cable connector 40 and the main body 32, and the deformation direction of the second part 312 and the moving direction of the cable connector 40 Consistent, that is, the second portion 312 is compressed between the main body portion 32 and the cable connector 40 .

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

Referring to FIG. 7 , in some embodiments, at least part of the second portion 312 is bent to one side of the main body 32 along the thickness direction, and the first portion 311 is connected to the end of the second portion 312 away from the main body 32 and opposite to The second portion 312 is bent.

As shown in FIG. 7 , the Y direction is the length direction of the main body 32 , the X direction is the width direction, and the Z direction is the thickness direction. The second portion 312 is at least partially bent to one side of the main body 32 along the thickness direction.

It should be noted that the first part 311 and the second part 312 are integrated. In some embodiments, the connecting part 31 is arranged in a Z shape, that is, the second part 312 is bent once, and the first part 311 is connected to the end of the second part 312 away from the main part 32 and bent relative to the second part 312 . In another embodiment, the second portion 312 can also be bent multiple times. It only needs to form a shape capable of being deformed to release the stress generated between the first part 311 and the cable connector 40 .

In this way, at least part of the second part 312 is bent to one side of the main body 32 along the thickness direction. Compress to relieve stress.

Referring to Fig. 7 and Fig. 8, in some embodiments, the main body 32 is provided with a channel 313, and the channel 313 runs through the main body 32 along the thickness direction; one end of the second part 312 is connected to the wall of the channel 313, and the second part 312 The other end of the first part 311 is bent to the side of the main body 32 away from the cable connector 40 along the thickness direction and connected to the first part 311; the end of the first part 311 away from the second part 312 is used to pass through the channel 313 and connect with the cable like Connector 40 is connected.

Exemplarily, the wall of the channel 313 refers to the inner wall of the channel 313 in a direction parallel to the width direction.

In this way, the end of the first part 311 away from the second part 312 passes through the channel 313 and is connected to the cable connector 40 , so that the connection between the cable connector 40 and the connection part 31 is more firm and stable.

In some embodiments, channel 313 includes a through hole.

The through hole refers to a hole provided on the main body 32 and passing through the main body 32 . In another embodiment, the channel 313 may also be disposed on a side of the main body 32 along the width direction. The channel 313 may also include a notch disposed on a lateral side of the main body portion 32 along the width direction, and the notch has the advantage of being easy to process.

Setting through holes as channels 313 can make full use of the space of the cable connector protection device 30 of the battery, and more channels 313 can be set on the cable connector protection device 30 of the battery, thereby satisfying the need for setting multiple connections. Section 31 Requirements.

In some embodiments, there are multiple connecting parts 31 .

In this way, the battery cable connector protection device 30 can be connected to a plurality of cable connectors 40 . According to the position and shape of the cable connector 40, the lengths of the plurality of connecting parts 31 may be the same or different.

Referring to FIG. 9, in some embodiments, the main body 32 includes: a third part 321 for connecting with the battery connector 50; a fourth part 322 connected to the third part 321 and bent relative to the third part 321 and the fifth part 323, connected to the end of the fourth part 322 away from the third part 321 and bent relative to the fourth part 322, the connecting part 31 is connected to the fifth part 323.

In this way, the fourth part 322 is bent relative to the third part 321 , and the fifth part 323 is bent relative to the fourth part 322 , which is beneficial to increase the structural strength of the battery cable connector protection device 30 . The connecting portion 31 is disposed on the fifth portion 323 , which also has the advantage of being easy to process.

In some embodiments, there are multiple fifth parts 323 and fourth parts 322 , and each fourth part 322 is connected to a corresponding fifth part 323 and third part 321 ; each fifth part 323 is connected to a connecting part 31 .

In this way, each fifth part 323 is connected to a row of cable connectors 40, multiple fifth parts 323 can be connected to multiple rows of cable connectors 40, and the fourth part 322 is used to connect the fifth part 323 and the fifth part 323. The third part 321 and strengthen the structural strength of the fifth part 323 . Correspondingly, when there are multiple fifth parts 323, there may also be multiple fourth parts 322.

In some embodiments, the first part 311 includes a plurality of conductor parts 311 a arranged at intervals, and the plurality of conductor parts 311 a are used for connecting with the cable-type connector 40 .

In this way, a plurality of conductor parts 311 a are connected to the cable connector 40 and can be used to realize functions such as voltage detection and temperature detection, respectively.

In a second aspect, the present application provides a battery, including: a battery cell; a cable connector 40 for connecting to the battery cell; and the cable connector protection device in the above embodiment, the first part 311 Connected to the cable connector 40 .

In some embodiments, at least part of the cable connector 40 is located between the battery cell and the main body 32; one end of the second part 312 is connected to the main body 32, and the other end of the second part 312 is bent to the main body 32 The side away from the cable connector 40 is connected to the first part 311 ; the first part 311 is bent toward the cable connector 40 relative to the second part 312 and connected to the cable connector 40 .

According to some embodiments of the present application, with reference to Fig. 6 and Fig. 7, the present application proposes a battery cable connector protection device 30, the battery cable connector protection device 30 has a main body part 32 and a connection part 31 , the connecting portion 31 is arranged in a Z shape, that is, the connecting portion 31 includes a first portion 311 arranged horizontally and a second portion 312 arranged in a bend. When the battery expands during use, the cable connector 40 moves due to the expansion of the battery, and the second part 312 deforms when the cable connector 40 moves to release the first part 311 and the cable connector. Stress between 40.

Please refer to FIG. 10 to FIG. 11 , the battery cable connector protection device 30 mentioned in this application may be an FFC flexible flat cable connector protection device. It is composed of three layers of insulating film 30b, multiple conductors 30a, and insulating film 30b. In one embodiment, the conductor 30a is a copper conductor 30a, the insulating film 30b is a PET film, and the connecting portion 31 is formed by folding one or more of the conductors 30a.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A cable connector protection device for a battery, comprising:

main body;

The connection part is connected to the main body, the connection part includes a first part and a second part, the first part is used to connect with the cable connector of the battery connected to the cable connector protection device, the a second portion connects the first portion and the main body portion,

Wherein, the second part is configured to deform when the cable connector connected to the cable connector protection device moves, so as to release the first part from being connected to the cable connector protection device. The stress between the cable connectors.
The cable connector protection device according to claim 1, wherein at least part of the second part is bent to one side of the main body along the thickness direction, and the first part is connected to the second part One end of the body away from the main body is bent relative to the second part.
The protection device for cable connectors according to claim 2, wherein the main body is provided with a channel, and the channel passes through the main body along 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 the side of the main body part away from the cable connector along the thickness direction and connected to the the first part;

An end of the first part away from the second part is used to pass through the channel and be connected to the cable-like connector.
The protection device for cable connectors according to claim 3, wherein the channel comprises a through hole.
The protection device for cable-like connectors according to any one of claims 1-4, wherein the connecting parts are provided in plurality.
The protection device for cable connectors according to any one of claims 1-5, wherein the main body comprises:

The third part is used to connect with the connector of the battery;

a fourth portion connected to and bent relative to the third portion; and

The fifth part is connected to an end of the fourth part away from the third part and is bent relative to the fourth part, and the connecting part is connected to the fifth part.
The protection device for cable connectors according to claim 6, wherein the fifth part and the fourth part are multiple, and each of the fourth parts is connected to the corresponding fifth part and the the third part;

Each of the fifth parts is connected with the connection part.
The protection device for cable connectors according to any one of claims 1-7, wherein the first part includes a plurality of conductor parts arranged at intervals, and the plurality of conductor parts are used to connect with the cables. pieces are connected.
A battery comprising:

battery cell;

a cable-like connector for connecting to the battery cell; and

According to the protective device for cable connectors according to any one of claims 1-8, the first part is connected to the cable connectors.
The battery according to claim 9, wherein at least part of the cable-like connector is located between the battery cell and the main body;

One end of the second part is connected to the main body, and the other end of the second part is bent to the side of the main body away from the cable connector and connected to the first part;

The first part is bent toward the cable-like connector relative to the second part and connected to the cable-like connector.
An electric device, comprising the battery according to claim 9 or 10, the battery is used for providing electric energy.