CN113258157B

CN113258157B - Battery and electric device

Info

Publication number: CN113258157B
Application number: CN202110808187.8A
Authority: CN
Inventors: 王冲; 陈其锋; 钱木; 孙占宇
Original assignee: Jiangsu Contemporary Amperex Technology Ltd
Current assignee: Jiangsu Contemporary Amperex Technology Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-02
Anticipated expiration: 2041-07-16
Also published as: CN113258157A

Abstract

The present application relates to a battery and a power consumption device, wherein the battery includes: a battery cell; the temperature sensor is used for measuring the temperature of the battery monomer; the sensor mounting assembly is used for mounting a temperature sensor; and the signal transmission component is electrically connected with the temperature sensor to transmit the temperature signal of the battery cell, and is detachably connected with the sensor mounting assembly. The replaceability and the compatibility of the temperature sensor can be improved, so that the maintenance of the battery and the replacement of fault equipment are facilitated, the cost of the battery is reduced, and the probability of integral scrapping of the battery is reduced.

Description

Battery and electric device

Technical Field

The application relates to the technical field of batteries, in particular to a battery and an electric device.

Background

Batteries are receiving more and more attention as an important new power source. In order to predict the possibility of explosion caused by overheating, a temperature sensing structure for temperature acquisition is conventionally added to the battery to measure the temperature of the battery cells in the battery module.

However, the conventional temperature sensing structure is mainly fixed on the battery unit by means of dispensing, welding and the like, and the temperature sensing structure is poor in universality and has no maintainability.

Disclosure of Invention

The application provides a battery and a power consumption device, which can improve the universality and maintainability of a temperature sensing structure.

A first aspect of the present application provides a battery comprising:

a battery cell;

the temperature sensor is used for measuring the temperature of the battery cell;

a sensor mounting assembly for mounting the temperature sensor;

and the signal transmission component is electrically connected with the temperature sensor to transmit the temperature signal of the battery cell, and is detachably connected with the sensor mounting assembly.

In some embodiments, a connection port is provided at one side of the sensor mounting assembly, and the sensor mounting assembly is detachably connected with the signal transmission component at the connection port.

In some embodiments, the sensor mounting assembly further comprises:

and the leading-out terminal is arranged at the connecting port and is used for connecting the temperature sensor with the signal transmission component.

In some embodiments, one end of the leading terminal is connected to the temperature sensor, the other end of the leading terminal has an elastic connection portion, and the signal transmission member is inserted into the connection port and detachably connected to the elastic connection portion.

In some embodiments, the other end of the lead-out terminal is bent to form the elastic connection portion.

In some embodiments, the other end of the lead-out terminal is bent toward a side surface of the lead-out terminal and is kept a predetermined distance from the side surface.

In some embodiments, the sensor mounting assembly includes a first housing and a second housing connected to each other, the temperature sensor is provided to the first housing, and the outgoing terminal and the connection port are provided to the second housing.

In some embodiments, the first housing and the second housing are removably connected.

In some embodiments, the sensor mounting assembly further includes a thermal conductor for transferring the temperature of the battery cell to the temperature sensor.

In some embodiments, the first housing and/or the second housing are removably coupled to the thermal conductor.

In some embodiments, the sensor mounting assembly includes at least two of the lead-out terminals, and the sensor mounting assembly further includes a partition for isolating adjacent lead-out terminals.

In some embodiments, the signal transmission member includes a contact terminal and a transmission terminal connected to each other;

the contact end is used for being in contact connection with the leading-out terminal;

the transmission end is used for transmitting the temperature signal of the battery monomer.

In some embodiments, the sensor mounting assembly is removably disposed on the battery cell.

In some embodiments, one of the sensor mounting assembly and the battery cell is provided with a clamping piece, and the other is provided with a clamping groove, and the clamping piece is connected with the clamping groove to realize detachable connection of the sensor mounting assembly and the battery cell.

According to a second aspect of the present application, there is provided an electric device comprising the battery of the above embodiment, the battery being configured to provide electric energy.

According to the battery that this application embodiment provided, on the one hand, through the detachable connection of signal transmission part and sensor installation component, be favorable to signal transmission part and sensor installation component's independent design respectively, processing and maintenance change. On the other hand, can dismantle with the battery monomer through sensor installation component and be connected, can directly dismantle sensor installation component from the battery monomer when temperature sensor breaks down and needs to detect or change to temperature sensor's convertibility and compatibility have been improved, in order to do benefit to the maintenance of battery and the change of faulty equipment, reduce the cost of battery, reduce the whole probability of scrapping of battery emergence.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Fig. 1-a is a schematic structural diagram of an electrical device according to an embodiment of the present disclosure.

Fig. 1-B is a schematic structural diagram of a battery according to an embodiment of the present disclosure.

Fig. 1-C is a schematic structural view of a battery module according to an embodiment of the present disclosure.

Fig. 1-D is a schematic structural diagram of a battery cell according to an embodiment of the present disclosure.

Fig. 2 is an assembly schematic diagram of a sensor mounting assembly and a signal transmission member in a battery according to an embodiment of the present application.

Fig. 3 is an exploded view of the structure of fig. 2.

Fig. 4 is a removable schematic view of the sensor mounting assembly and signal transmission member of fig. 2.

Fig. 5 is a side view of the structure of fig. 2.

Fig. 6 is another assembly view of the sensor mounting assembly and the signal transmission member in the battery according to the embodiment of the present application.

Fig. 7 is a removable schematic view of the sensor mounting assembly and signal transmission member of fig. 6.

Fig. 8 is an exploded view of the structure of fig. 7.

Fig. 9 is another assembly view of the sensor mounting assembly and the signal transmission member in the battery according to the embodiment of the present application.

Fig. 10 is an exploded view of a sensor mounting assembly and a signal transmission member in a battery according to an embodiment of the present application.

Fig. 11 is a battery provided with a sensor mounting assembly and a signal transmission member according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative of the present application, and are not intended to limit the scope of the present application, and therefore: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection 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 in the description of the application 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 and claims of this application and the description of the figures are intended to cover non-exclusive inclusions.

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 application. The appearances of the phrase "an embodiment" 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Furthermore, the terms "first," "second," and the like in the description and claims of the present application or in the above-described drawings are used for distinguishing between different objects and not necessarily for describing a particular sequential order, and may explicitly or implicitly include one or more of the features.

In the description of the present application, unless otherwise specified, "plurality" means two or more (including two), and similarly, "plural groups" means two or more (including two).

In the description of the present application, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., "connected" or "connected" of a mechanical structure may refer to a physical connection, e.g., a physical connection may be a fixed connection, e.g., a fixed connection by a fastener, such as a screw, bolt, or other fastener; the physical connection can also be a detachable connection, such as a mutual clamping or clamping connection; the physical connection may also be an integral connection, for example, a connection made by welding, gluing or integrally forming the connection. "connected" or "connected" of circuit structures may mean not only physically connected but also electrically connected or signal-connected, for example, directly connected, i.e., physically connected, or indirectly connected through at least one intervening component, as long as the circuits are in communication, or communication between the interiors of two components; signal connection may refer to signal connection through a medium, such as radio waves, in addition to signal connection through circuitry. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

In order to clearly describe the respective orientations in the following embodiments, terms of orientation may be used, for example, the directions of the respective orientations of the battery are defined as a coordinate system in fig. 1-D, the x direction represents the length direction of the battery cell 400, the y direction is perpendicular to the x direction in the horizontal plane, represents the width direction of the battery cell 400, and the z direction is perpendicular to the x direction and the y direction, and represents the height direction of the battery. Further, the expressions of the directions indicated for explaining the operation and configuration of each member of the battery of the present embodiment, such as the x direction, the y direction, and the z direction, described above are not absolute but relative, and although these indications are appropriate when each member of the battery is in the position shown in the drawings, when the positions are changed, the directions should be interpreted differently to be changed correspondingly.

With the same orientation in mind, in the description of the present application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship illustrated in the drawings for convenience in describing the present application and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.

The rechargeable battery may be referred to as a secondary battery or a power battery, and at present, a relatively widely used rechargeable battery is a lithium battery, for example, but not limited to, a lithium-sulfur battery, a sodium lithium-ion battery, or a magnesium-ion battery. For convenience of description, the rechargeable battery may be collectively referred to herein as a battery.

The safety characteristic of the battery is an important characteristic of the battery, and the safety of the battery needs to be ensured as much as possible when the battery is used or charged.

The battery is generally formed by connecting and combining a plurality of battery cells, and the battery cells can change temperature during the use process. When the temperature is too high, the battery monomer is required to be cooled through the heat management component, so that the accidents that the battery monomer is invalid and out of control due to too high temperature of the battery monomer, even explosion and the like are caused are avoided.

In order to predict the possibility of explosion caused by overheating and avoid thermal runaway of a single battery, an effective scheme is to set a temperature-sensing structure to monitor the temperature of the single battery in real time, so as to alarm and remind in time when the temperature of the single battery is too high or reaches a threshold value, thereby reducing the probability of the occurrence of the overheating condition of the single battery.

The temperature sensing structure is generally provided with a temperature sensing chip, and the temperature sensing chip is directly integrated on a bus bar, a voltage acquisition device or a heat management pipeline and other parts generally in a mode of dispensing, welding, structure fixing and the like. The connection method belongs to a one-time connection method, and has the disadvantages of no replaceability, poor universality and low quality reliability. Once the temperature sensing chip fails in the life cycle, the single battery or even the whole battery is easily scrapped, and even the safety problem is caused. In addition, the temperature sensing structure and the signal transmission equipment are also designed integrally, so that other equipment, even batteries, can be scrapped easily when one equipment is damaged.

In view of the above, the present application provides a battery, in which a connection manner of a temperature sensing chip on a battery cell and a connection manner of the temperature sensing chip and a signal transmission device are changed to improve replaceability of the temperature sensing chip and replaceability and compatibility of the signal transmission device connected to the temperature sensing chip, so as to facilitate maintenance of the battery and replacement of faulty devices, reduce cost of the battery, and reduce probability of overall rejection of the battery.

The battery in the embodiment of the application can be applied to various electric devices which can provide power sources by electric energy. The electric device can be, but is not limited to, an electric automobile, an electric train, an electric bicycle, a golf cart, an unmanned aerial vehicle, a ship, or the like. The electric device may be a device powered by a battery alone or a hybrid device. The battery provides electric energy for the power consumption device to drive electric actuator through the motor and advance.

For example, as shown in fig. 1-a, which is a schematic structural diagram of an electric device according to an embodiment of the present application, the electric device may be an automobile, the automobile may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or an extended range automobile. The automobile includes a battery 200, a controller 210, and a motor 220. The battery 200 is used to supply power to the controller 210 and the motor 220 as an operation power source and a driving power source of the automobile, for example, the battery 200 is used for a power demand for operation at the start, navigation and running of the automobile. For example, the battery 200 supplies power to the controller 210, the controller 210 controls the battery 200 to supply power to the motor 220, and the motor 220 receives and uses the power of the battery 200 as a driving power source of the automobile, instead of or in part replacing fuel or natural gas to provide driving power for the automobile.

In order to achieve higher functions of the battery to meet the use requirement, the battery 200 may include a plurality of battery modules electrically connected to each other, as shown in fig. 1-B, the battery 200 includes a first case 201, a second case 202, and a plurality of battery modules 300, wherein the first case 201 and the second case 202 are fastened to each other, and the plurality of battery modules 300 are arranged in a space enclosed by the first case 201 and the second case 202. In some embodiments, the first case 201 and the second case 202 are hermetically connected.

As shown in fig. 1-C, the battery module 300 includes a plurality of battery cells 400, and the plurality of battery cells 400 may be electrically connected in series, in parallel, or in series-parallel to achieve a larger current or voltage, wherein the series-parallel refers to a combination of series connection and parallel connection. For example, as shown in fig. 1-C, the battery cells 400 may be placed upright, the height direction of the battery cells 400 coincides with the z-direction, the length direction of the battery cells 400 coincides with the x-direction, and a plurality of battery cells 400 are arranged side by side in the y-direction along the width direction thereof; alternatively, the battery cells 400 may be laid flat, the width direction of the battery cells 400 is consistent with the z direction, the length direction of the battery cells 400 is consistent with the x direction, and the plurality of battery cells 400 may be stacked in the z direction in at least one layer, each layer including a plurality of battery cells 400 arranged at intervals in the x direction.

In order to make it clear to those skilled in the art of the improvement of the present application, the overall structure of the battery cell 400 will be described first.

As shown in fig. 1-D, the battery cell 400 includes a case 40, an electrode assembly 30, and an end cap assembly 10, the end cap assembly 10 includes an end cap plate 10 ', the end cap plate 10' is connected (e.g., welded) to the case 40 to form an outer case of the battery cell 400, the electrode assembly 30 is disposed inside the case 40, and the case 40 is filled with an electrolyte. The battery cell 400 may have a cubic shape, a rectangular parallelepiped shape, or a cylindrical shape.

The electrode assembly 30 may be provided singly or in plurality according to the actual use requirement. As shown in fig. 1-D, at least two independently wound electrode assemblies 30 may also be provided within the cell. The electrode assembly 30 may form the main body part by winding or stacking a first pole piece, a second pole piece, and a separator between the adjacent first and second pole pieces together, wherein the separator is an insulator between the adjacent first and second pole pieces. In this embodiment, the first pole piece is exemplarily described as a positive pole piece, and the second pole piece is a negative pole piece. The positive active material is coated on the coating region of the positive electrode tab, and the negative active material is coated on the coating region of the negative electrode tab. A plurality of uncoated regions extending from the coated region of the body portion are laminated as the tab 301. The electrode assembly 30 includes two tabs 301, i.e., a positive electrode tab and a negative electrode tab. The positive tab extends from the coated area of the positive pole piece and the negative tab extends from the coated area of the negative pole piece.

The end cap assembly 10 is disposed on top of the electrode assembly 30, and as shown in fig. 1-D, the end cap assembly 10 includes an end cap plate 10 'and two electrode terminals 5, the two electrode terminals 5 are a positive electrode terminal and a negative electrode terminal, respectively, one connecting member 20 is disposed corresponding to each electrode terminal 5, and the connecting member 20 is located between the end cap plate 10' and the electrode assembly 30.

For example, a tab 301 of the electrode assembly 30 is located at the top in fig. 1-D, and a positive tab is connected to a positive terminal through one connecting member 20 and a negative tab is connected to a negative terminal through the other connecting member 20. Alternatively, the battery cell 400 may include two end cap assemblies 10 disposed at both ends of the case 40, respectively, and one electrode terminal 5 is disposed on each of the end cap assemblies 10.

The end cover plate 10' may further be provided with an explosion-proof member, so that when too much gas is in the battery cell 400, the gas in the battery cell 400 is released in time to avoid explosion.

The end cover plate 10 'is provided with an exhaust hole which can be arranged at the middle position of the end cover plate 10' along the length direction. The explosion-proof component comprises a pressure relief mechanism 6, the pressure relief mechanism 6 is arranged on the exhaust hole, the pressure relief mechanism 6 is hermetically arranged on the exhaust hole in a normal state, when the single battery 400 expands to enable the air pressure in the shell to rise to exceed a preset value, the pressure relief mechanism 6 is actuated to be opened, and the air is released outwards through the pressure relief mechanism 6.

In some embodiments, as shown in fig. 1-D, the end cap plate 10 'is provided with a through hole for injecting an electrolyte into the battery cell 400, and the through hole may be a circular hole, an elliptical hole, a polygonal hole, or another hole, and may extend in the height direction Z of the end cap plate 10'. The end cover plate 10' is provided with a liquid injection member 2 for sealing the through hole.

The embodiment of the present application provides a battery, the basic structure layout of which is as described in the above battery 200, and the battery comprises a battery cell 400. The number of the battery cells 400 may vary according to actual conditions, and is not particularly limited in this embodiment.

In contrast, in the embodiment of the present application, the battery further includes a temperature sensor, a sensor mounting assembly, and a signal transmission member. The temperature sensor is used for measuring the temperature of the battery monomer; the sensor mounting component is used for mounting a temperature sensor; and the signal transmission part is used for being electrically connected with the temperature sensor to transmit the temperature signal of the battery monomer, and the signal transmission part is detachably connected with the sensor mounting assembly.

Referring to fig. 2 and 3, there are shown schematic views of the structures of the temperature sensor 500, the sensor mounting assembly 600, and the signal transmission member 700 and their positional relationships. In the embodiment of the present application, the temperature sensor 500 is mounted in the sensor mounting assembly 600, and the temperature sensor 500 is electrically connected to the signal transmission member 700, and the signal transmission member 700 is used to transmit the temperature signal of the battery cell 400 measured by the temperature sensor 500. Also, as shown in fig. 4, the signal transmission member 700 is detachably coupled to the sensor mounting assembly 600.

In the embodiment of the present application, the detachable connection between the signal transmission member 700 and the sensor mounting assembly 600 is advantageous for the independent design, processing, maintenance and replacement of the signal transmission member 700 and the sensor mounting assembly 600. For example, when the signal transmission member 700 is damaged, only the signal transmission member 700 is replaced; when the sensor mounting assembly 600 is damaged, only the sensor mounting assembly 600 is replaced. In addition, the connection manner of the signal transmission member 700 and the sensor mounting assembly 600 may be set in a general manner, so that one signal transmission member 700 may be matched with a plurality of types of sensor mounting assemblies 600, and likewise, one sensor mounting assembly 600 may be matched with a plurality of types of signal transmission members 700, thereby improving the flexibility of device selection in the battery and enabling a greater number of types of devices to be used in the battery.

In the embodiment of the present application, the sensor mounting assembly 600 may be detachably connected to the battery cell 400, so that when the temperature sensor 500 fails and needs to be detected or replaced, the sensor mounting assembly 600 may be directly detached from the battery cell 400, thereby improving the replaceability of the temperature sensor 500; on an interchangeable basis, a general-purpose mounting manner of the temperature sensor 500 on the sensor mounting assembly 600 may be provided, so that the kinds of usable temperature sensors 500 may be increased, thereby improving the versatility of the temperature sensor 500 in the battery.

In some embodiments, a clip may be disposed on one of the sensor mounting assembly 600 and the battery cell 400, and a slot may be disposed on the other, and the clip and the slot are connected to detachably connect the sensor mounting assembly 600 and the battery cell 400. Specifically, the structural forms of the clip member and the clip groove may be determined according to actual conditions, and this is not particularly limited in the embodiment of the present application.

In the embodiment of the present application, in order to detachably connect the signal transmission member 700 and the sensor mounting assembly 600, as shown in fig. 4, a connection port 610 may be provided at one side of the sensor mounting assembly 600, and the sensor mounting assembly 600 and the signal transmission member 700 may be detachably connected at the connection port 610.

In some embodiments, in order to electrically connect the temperature sensor 500 to the signal transmission member 700, the sensor mounting assembly 600 further includes an outgoing terminal 620, and the outgoing terminal 620 is used to connect the temperature sensor 500 to the signal transmission member 700.

In the embodiment of the present application, in order to simplify the structure and improve the compactness of the whole structure, the lead terminal 620 may be disposed at the connection port 610, the temperature sensor 500 may be connected to the lead terminal 620, and the signal transmission member 700 may be connected to the lead terminal 620, so that the temperature sensor 500 and the signal transmission member 700 may be electrically connected to transmit the temperature signal.

In some embodiments, the detachable connection of the sensor mounting assembly 600 to the signal transmission member 700 at the connection port 610 may be accomplished by the detachable connection of the temperature sensor 500 to the lead-out terminal 620; alternatively, the sensor mounting assembly 600 is removably connected to the signal transmission member 700 at the connection port 610 by removably connecting the signal transmission member 700 to the lead-out terminal 620; still alternatively, the detachable connection of the sensor mounting assembly 600 and the signal transmission member 700 at the connection port 610 may be achieved by both the detachable connection of the temperature sensor 500 to the lead-out terminal 620 and the detachable connection of the signal transmission member 700 to the lead-out terminal 620.

The embodiment of the present application will describe the detachable connection of the sensor mounting assembly 600 and the signal transmission member 700 at the connection port 610, taking the manner in which the signal transmission member 700 and the lead-out terminal 620 are detachably connected as an example.

Specifically, referring to fig. 5, one end 622 of the leading terminal 620 needs to be connected to the pin 501 of the temperature sensor 500, for example, the one end 622 of the leading terminal 620 may be fixedly connected to the pin 501 of the temperature sensor 500 by means of glue dispensing, welding, crimping, bonding, or structural fixing, or may be detachably connected by means of snap connection, or may be integrally formed with the temperature sensor 500, and the connection manner between the one end 622 of the leading terminal 620 and the pin 501 of the temperature sensor 500 is not particularly limited in this embodiment of the application.

In the embodiment of the present application, in order to achieve detachable connection of the other end of the outgoing terminal 620 to the signal transmission member 700 at the connection port 610. The other end of the lead-out terminal 620 may have an elastic connection portion 621, the elastic connection portion 621 may be provided at the connection port 610, and the signal transmission member 700 may be detachably connected to the elastic connection portion 621 by being inserted into the connection port 610.

In some embodiments, the signal transmission member 700 may be detachably connected to the elastic connection portion 621 in various ways, such as a snap connection.

In the present embodiment, the elastic connection portion 621 is formed by bending the other end of the lead terminal 620. As shown in fig. 3. In the specific forming process of the elastic connection portion 621, the other end of the leading terminal 620 may be bent toward one side of the leading terminal 620 and keep a predetermined distance from the side, so that the other end of the leading terminal 620 has a certain elastic movement space, and the detachable connection of the signal transmission member 700 and the elastic connection portion 621 can be realized. The size of the preset distance may be determined according to the size and material of the leading terminal 620, and is not particularly limited herein.

In some embodiments, the elastic connection portion 621 may be obtained by bending the other end of the lead-out terminal 620 toward one side of the lead-out terminal 620 at a time, as shown in fig. 3; as shown in fig. 10, the elastic connection portion 621 may be obtained by bending the other end of the lead terminal 620 toward one side surface of the lead terminal 620 a plurality of times. The number of times of bending is not particularly limited in the embodiments of the present application.

In some embodiments, the leading terminal 620 may be a structure made of a thin metal sheet or the like having a certain elasticity to ensure that the elastic connection portion 621 can elastically move in a certain space. As shown in fig. 3, when the leading terminal 620 and the signal transmission member 700 are inserted into the connection port 610, the elastic connection portion 621 having a certain elasticity pushes the signal transmission member 700 in the connection port 610. When the signal transmission member 700 needs to be detached, the signal transmission member 700 is directly pulled out from the connection port 610, and the elastic connection portion 621 deforms accordingly according to the force applied thereto. In the embodiment of the present application, the size and material of the lead terminal 620 are not particularly limited.

In some embodiments, the sensor mounting assembly 600 for mounting the temperature sensor 500 may have various configurations. In order to improve the convenience of processing and maintenance of the sensor mounting assembly 600, in the embodiment of the present application, as shown in fig. 3, the sensor mounting assembly 600 includes a first housing 630 and a second housing 640 connected to each other, wherein the first housing 630 is used for disposing the temperature sensor 500, the second housing 640 is used for disposing the connection port 610, and the leading terminal 620 is disposed at the connection port 610.

In some embodiments, the connection between the first housing 630 and the second housing 640 may be set according to actual needs. As shown in fig. 10, the first housing 630 and the second housing 640 may be of an integrally molded structure, for example, by injection molding. Moreover, a containing cavity for containing the temperature sensor 500 is arranged in the first housing 630, the temperature sensor 500 can be fixed in the containing cavity through a fixing mold 631, or can be fixed in the containing cavity through glue filling, and the pin 501 of the temperature sensor 500 is arranged towards the connection port 610 of the second housing 640. At this connection port 610, connection of one end 622 of the lead-out terminal 620 to the pin 501 of the temperature sensor 500 is achieved. Wherein, the inner shape of the fixed mold 631 matches with the temperature sensor 500, the outer shape of the fixed mold 631 matches with the receiving cavity, and the fixed mold 631 may be fixedly connected with the first housing 630 by interference fit or the like. The embodiment of the present application is not particularly limited to this.

In the embodiment of the present application, as shown in fig. 3 to 8, in order to improve the replaceability of the sensor mounting assembly 600, the first housing 630 and the second housing 640 may be detachably connected, so that when the first housing 630 or the internal components thereof are damaged, only the first housing 630 may be replaced, and when the second housing 640 or the internal components thereof are worn, only the second housing 640 may be replaced, thereby reducing the maintenance cost.

In some embodiments, the first housing 630 and the second housing 640 can be detachably connected in various ways, for example, various ways such as a snap connection. In the embodiment of the present application, as shown in fig. 3, a heat conducting member 650 may be further included, where the heat conducting member 650 is mainly used for transferring the temperature of the battery cell 400 to the temperature sensor 500, so as to enhance the heat conducting performance, and facilitate the temperature sensor 500 to collect the temperature of the battery cell 400.

In the embodiment, the heat-conducting member 650 may be used to connect the first case 630 and the second case 640, in addition to enhancing the heat-conducting property. Specifically, the first housing 630 may be detachably connected to the heat conducting member 650, the second housing 640 may be detachably connected to the heat conducting member 650, or both the first housing 630 and the second housing 640 may be detachably connected to the heat conducting member 650.

In some embodiments, the first and

second housings

630 and 640 may be detachably connected to the heat-conducting member 650 in various ways. As shown in fig. 3 and 5, a plurality of fastening holes 651 may be formed in the heat conducting member 650, and fastening members 652 that can be fastened into the fastening holes 651 may be formed in the first housing 630 and the second housing 640, so that the first housing 630, the second housing 640 and the heat conducting member 650 can be detachably connected. The connection between the first and

second housings

630 and 640 and the heat-conducting member 650 may be achieved by gluing or the like.

Alternatively, as shown in fig. 6 to 8, the heat conducting member 650 may be configured to have a receiving groove, and the first housing 630 and the second housing 640 may be directly clamped in the receiving groove, so as to detachably connect the first housing 630 and the second housing 640 to the heat conducting member 650. In order to facilitate the connection of the lead terminal 620 of the second housing 640 with the outside, an opening is further provided at one side of the heat conductive member 650 to facilitate the connection of the signal transmission member 700 with the lead terminal 620.

In order to position the first housing 630 and the second housing 640 provided in the heat-conducting member 650 having the opening, a positioning retaining edge may be provided on the heat-conducting member 650, or, as shown in fig. 8, a retaining portion 653 may be provided on the heat-conducting member 650, and a stopper portion 654 may be provided on the second housing 640 to be retained in the retaining portion 653. The first case 630 and the second case 640 are prevented from slipping out of the heat conductive member 650 by the engagement of the stopper 654 with the engaging groove 653.

It should be noted that, in actual use, besides using the heat conducting member 650, as shown in fig. 9, only the second housing 640 may be retained, and the temperature sensor 500 may be directly fixed on the battery cell 400, so as to achieve the detachable connection between the temperature sensor 500 and the signal transmission member 700. Therefore, the size of the whole structure can be reduced, and the size of the reserved space of the battery is met. Of course, the temperature sensor 500 in fig. 9 can be directly clamped on the battery cell 400 by providing one or more fasteners or the like on the battery cell 400, so as to achieve the detachable connection of the temperature sensor 500. The structure of the buckle can be in various forms, and the shape of the buckle is not particularly limited.

In some embodiments, the temperature sensor 500 may be a drop-head type temperature sensor, a patch type temperature sensor, or other various structures. Depending on the specific shape of the temperature sensor 500, a structure for mounting or clamping the temperature sensor 500 may be provided in the first housing 630, or the temperature sensor 500 may be directly fixed in the first housing 630 by using an adhesive seal or a glass seal. The embodiment of the present application is not particularly limited in the structural form of the temperature sensor 500 and the connection manner with the first housing 630.

In this embodiment, the second housing 640 is mainly used for providing the connection port 610, and the through connection port 610 may be directly etched in the second housing 640, and details of a specific etching process are not described herein.

In some embodiments, the number of the connection ports 610 may be determined according to the number of the outgoing terminals 620, and when there is one outgoing terminal 620, only one connection port 610 needs to be provided; when there are a plurality of lead terminals 620, a corresponding plurality of connection ports 610 may be provided, and the plurality of connection ports 610 may be provided at intervals. For example, a partition may be provided on the sensor mounting assembly 600, and particularly, the partition may be provided at the connection port 610 for the purpose of isolating the adjacent lead-out terminals 620. A plurality of connection ports 610 arranged at intervals may be directly engraved in the second housing 640, and the purpose of isolating the adjacent lead-out terminals 620 may also be achieved.

In some embodiments, the structure of signal transmission member 700 may take a variety of forms. In the embodiment of the present application, as shown in fig. 4 and 7, the signal transmission member 700 includes a contact terminal 701 and a transmission terminal 702 connected to each other; the contact end 701 is used for being in contact connection with the lead-out terminal 620; the transmitting terminal 702 is used for transmitting the temperature signal of the battery cell 400.

In some embodiments, the contact end 701 is inserted into the connection port 610 to connect with the lead-out terminal 620. The structural form of the contact end 701 can be determined according to the number of the lead-out terminals 620, one end of the contact end 701 connected with the lead-out terminals 620 can be set to be an integral structure, or one end of the contact end 701 connected with the lead-out terminals 620 can be set to be a forked structure, and each prong corresponds to one lead-out terminal 620, so that the connection of the contact end 701 and the lead-out terminals 620 is relatively isolated, and mutual interference is avoided. The contact terminal 701 needs to be made of metal having a signal transmission function, and the transmission terminal 702 may be any one of a conductive wire, an FFC (Flexible Flat Cable), an FPC (Flexible Printed Circuit), a PCB (Printed Circuit Board), or any combination thereof.

In some embodiments, the connection manner of the contact end 701 and the transmission end 702 may be various, for example, a crimping manner, a welding manner, an adhesive bonding manner, and the like, and the contact end 701 and the transmission end 702 may also be connected in a clamping manner to facilitate detachment and replacement, and the connection manner of the contact end 701 and the transmission end 702 is not particularly limited in this embodiment of the application.

Referring to fig. 11, a schematic structural diagram of a battery cell 400 provided with the sensor mounting assembly 600 is shown, wherein the sensor mounting assembly 600 is fixed on the top of the battery cell 400, a contact terminal 701 of a signal transmission member 700 is connected with a temperature sensor 500 in the sensor mounting assembly 600, a transmission terminal 702 of the signal transmission member 700 is connected with a circuit board 800, and a collected temperature signal is converted into other communication signals through the circuit board 800 and transmitted to an external device.

On the other hand, the present application further provides an electric device, which includes the above battery 200, and the battery 200 is used for providing electric energy. The specific structural form and the operation principle of the battery 200 have been described in detail in the above embodiments, and the details of this embodiment are not repeated.

To sum up, the power consumption device that this application embodiment provided through setting up foretell battery, on the one hand, through the dismantled connection of signal transmission part and sensor installation component, is favorable to signal transmission part and sensor installation component's independent design respectively, processing and maintenance to be changed. On the other hand, can dismantle with the battery monomer through sensor installation component and be connected, can directly dismantle sensor installation component from the battery monomer when temperature sensor breaks down and needs to detect or change to temperature sensor's convertibility and compatibility have been improved, in order to do benefit to the maintenance of battery and the change of faulty equipment, reduce the cost of battery, reduce the whole probability of scrapping of battery emergence.

The above-mentioned subject matters and features of the embodiments of the present application can be referred to each other, and those skilled in the art can flexibly combine technical features of different embodiments to form further embodiments when the structure allows.

The battery and the electric device provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are merely provided to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A battery, comprising:

a battery cell;

a sensor mounting assembly for mounting the temperature sensor;

the signal transmission component is electrically connected with the temperature sensor to transmit the temperature signal of the battery cell, and the signal transmission component is detachably connected with the sensor mounting assembly;

a connecting port is formed in one side of the sensor mounting assembly, and the sensor mounting assembly is detachably connected with the signal transmission component at the connecting port;

the leading-out terminal is arranged at the connecting port and is used for connecting the temperature sensor and the signal transmission component;

one end of the leading-out terminal is connected with the temperature sensor, the other end of the leading-out terminal is provided with an elastic connecting part, and the signal transmission part is inserted into the connecting port and is detachably connected with the elastic connecting part;

the sensor mounting assembly comprises a first shell and a second shell which are connected with each other, the temperature sensor is arranged on the first shell, and the leading-out terminal and the connecting port are arranged on the second shell;

the sensor mounting assembly further comprises a heat conducting member for transferring the temperature of the battery cell to the temperature sensor;

the heat conducting piece is detachably connected with the first shell and/or the second shell, and is used for connecting the first shell and the second shell;

the other end of the leading-out terminal is bent to form the elastic connection portion.

2. The battery according to claim 1, wherein the other end of the lead-out terminal is bent toward a side surface of the lead-out terminal and maintains a predetermined distance from the side surface.

3. The battery of claim 1, wherein the first housing and the second housing are removably connected.

4. The battery of claim 1, wherein the sensor mounting assembly includes at least two of the lead terminals, the sensor mounting assembly further including a divider for isolating adjacent lead terminals.

5. The battery according to claim 1, wherein the signal transmission member includes a contact terminal and a transmission terminal connected to each other;

6. The battery of any of claims 1-5, wherein the sensor mounting assembly is removably disposed on the battery cell.

7. The battery of claim 6, wherein one of the sensor mounting assembly and the battery cell is provided with a clamping piece, and the other is provided with a clamping groove, and the clamping piece is connected with the clamping groove to realize detachable connection of the sensor mounting assembly and the battery cell.

8. An electrical device comprising a battery as claimed in any one of claims 1 to 7 for providing electrical energy.