CN222320334U

CN222320334U - Battery device and electricity utilization device

Info

Publication number: CN222320334U
Application number: CN202422486898.XU
Authority: CN
Inventors: 王宇
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2024-10-15
Filing date: 2024-10-15
Publication date: 2025-01-07
Anticipated expiration: 2034-10-15

Abstract

The application provides a battery device and an electricity utilization device, and belongs to the technical field of batteries. The battery device comprises a plurality of battery cells, a converging component and a temperature sampling component. The confluence part is electrically connected with the plurality of battery cells. The temperature sampling assembly comprises a temperature detection part and a mounting frame, wherein the mounting frame is provided with an assembly part, the assembly part is assembled and connected with the converging part, an installation cavity with an opening is formed in the mounting frame, the installation cavity is arranged at intervals with the converging part, the installation cavity and the assembly part are arranged at intervals along a first direction, and the temperature detection part is contained in the installation cavity. The mounting frame is also provided with a separation groove, and the separation groove is positioned between the mounting cavity and the assembly part in the first direction. The partition groove can play a certain blocking effect in the process of transmitting the temperature on the converging component into the mounting cavity through the assembly part, so that the phenomenon that the temperature on the converging component is transmitted into the mounting cavity is relieved, and the influence of the temperature on the converging component on the temperature detection part is reduced.

Description

Battery device and electricity utilization device

Technical Field

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

Background

In recent years, new energy automobiles have been developed dramatically, and in the field of electric automobiles, a power battery plays an important role as a power source of the electric automobile. Along with the great popularization of new energy automobiles, the demand for power battery products is also growing, wherein the battery device has higher requirements on the use stability and the use reliability as a core part of the new energy automobile.

In battery technology, in order to guarantee the free security of battery, generally can set up temperature sampling subassembly in battery device, can gather and monitor the free temperature of battery in the use through temperature sampling subassembly to acquire battery device's service condition, however, the inaccurate phenomenon of temperature that appears gathering easily in current battery device's temperature sampling subassembly in the use, thereby can't effectively acquire battery device inside free service condition of battery, is unfavorable for promoting battery device's stability in use and reliability.

Disclosure of utility model

The embodiment of the application provides a battery device and an electricity utilization device, which can effectively improve the use stability and reliability of the battery device.

In a first aspect, an embodiment of the application provides a battery device, which comprises a plurality of battery cells, a confluence part and a temperature sampling assembly, wherein the confluence part is electrically connected with the plurality of battery cells, the temperature sampling assembly comprises a temperature detection part and a mounting frame, the temperature detection part is configured to detect the temperature of the battery cells, the mounting frame is provided with an assembly part, the assembly part is assembled and connected with the confluence part, an installation cavity with an opening is formed in the mounting frame, the installation cavity and the assembly part are arranged at intervals along a first direction, the installation cavity and the confluence part are arranged at intervals, the temperature detection part is accommodated in the installation cavity, and a separation groove is further formed in the mounting frame and is positioned between the installation cavity and the assembly part in the first direction.

In the above-mentioned technical scheme, install the temperature sampling subassembly on battery device's the part that converges, the temperature sampling subassembly is provided with mounting bracket and temperature detection spare, the mounting bracket has the assembly portion of being connected with the part that converges, and the inside of mounting bracket is formed with the installation cavity, installation cavity and part interval that converges set up, through the assembly portion assembly connection with the mounting bracket on converging the part, and set up the temperature detection spare in the installation cavity of mounting bracket, in order to realize that the temperature detection spare is installed on converging the part, make the temperature detection spare of temperature sampling subassembly can detect the free temperature of battery, in order to obtain the free temperature information of battery in the use, wherein, assembly portion and installation cavity are the structure of arranging along first direction interval, and set up the spread groove on the mounting bracket, the spread groove is located between the installation cavity of mounting bracket and the assembly portion of mounting bracket in first direction, make the in-process spread groove on converging the part to the installation cavity through the transmission of assembly portion can play certain separation and separation effect, in order to alleviate the temperature transmission on the part, thereby can reduce the temperature on converging the part and to detect the free temperature, the temperature that the temperature detection spare can detect the free temperature, the battery can be improved to the temperature of battery, the temperature that can be favorable to the temperature detection spare, and the temperature of battery can be improved, and the device can be used to the stability to the inside than the battery can be better than the temperature measurement device.

In some embodiments, the mounting bracket is provided with the fitting portion on at least one side in the first direction, wherein the mounting bracket has opposite first and second surfaces in a second direction, at least one of the first and second surfaces being provided with the separation groove, the second direction being perpendicular to the first direction.

In the above technical scheme, through set up the assembly department at the mounting bracket along one side in the first direction, and set up the separating groove on the mounting bracket along at least one of relative first surface and second surface in the second direction of perpendicular to first direction, thereby be convenient for set up the separating groove to be located between installation cavity and the assembly department in the first direction, be favorable to reducing the degree of difficulty that sets up the separating groove on the mounting bracket, and can promote the degree of difficulty of separating groove separation installation cavity and assembly department, be favorable to promoting the effect that the temperature on the separation groove separation converging part passes through the assembly department and transmits to the installation cavity, in order to alleviate the phenomenon that the temperature on the converging part transmits to the installation cavity, and then can reduce the influence of temperature on the converging part to the temperature detection piece.

In some embodiments, the separation groove extends through the first surface and the second surface in the second direction.

In the above technical scheme, through setting up the separating groove into the structure that runs through first surface and second surface in the second direction for the separating groove is the logical groove structure of running through the both sides of mounting bracket along the second direction, thereby can further promote the effect that the temperature on the separating groove separation converging part passed through the assembly portion and passed through to the installation intracavity, in order to further alleviate the temperature on the converging part and pass through the phenomenon to the installation intracavity, and then can further reduce the influence of temperature on the converging part to the temperature detection spare, be favorable to further promoting the precision and the degree of accuracy that the temperature detection spare detected the free temperature of battery.

In some embodiments, the mounting frame is provided with the assembling parts on two sides of the first direction, the mounting cavity is positioned between the two assembling parts in the first direction, two separation grooves are formed in the mounting frame, and the separation grooves are formed between the two assembling parts and the mounting cavity along the first direction.

In the above technical scheme, through all setting up the assembly portion in the mounting bracket along the both sides of first direction, and all be provided with the separating groove between every assembly portion and the installation cavity to can also realize that the mounting bracket can both be connected with the assembly of converging part in the both sides of first direction when alleviating the temperature transfer on the converging part to the installation cavity, be favorable to further promoting the stability and the firm of mounting bracket assembly on converging part.

In some embodiments, the first surface is disposed facing the battery cell along the second direction, wherein the first surface directly or indirectly abuts the battery cell in a region of the second direction corresponding to the mounting cavity.

In the above technical scheme, through setting up the first surface of mounting bracket in the region of second direction correspondence installation cavity as direct or indirect butt structure on the battery monomer to in the temperature transfer on the battery monomer is to the installation cavity of mounting bracket, thereby be favorable to promoting temperature detection spare and detect the precision and the degree of accuracy of battery monomer's temperature.

In some embodiments, along the second direction, a thermal pad is disposed on the first surface in a region corresponding to the mounting cavity, and the thermal pad abuts against the battery cell.

In the above technical scheme, through set up the heat conduction pad on the first surface of mounting bracket corresponds the region of installing the chamber in the second direction, and heat conduction pad and the mutual butt of battery monomer for the first surface of mounting bracket corresponds the region of installing the chamber in the second direction for the structure that contacts each other with the battery monomer through the heat conduction pad is indirect, thereby can be better through the heat conduction pad with the temperature transmission of battery monomer to the installation intracavity of mounting bracket, and then can further promote the temperature detection spare and detect the precision and the degree of accuracy of the free temperature of battery.

In some embodiments, the battery cell includes a housing, an electrode assembly and an electrode terminal, the electrode assembly is accommodated in the housing, the electrode terminal is disposed on the housing, the electrode terminal is electrically connected with the electrode assembly, and the electrode terminal is connected with the bus member, wherein the first surface is directly or indirectly abutted to the housing in the second direction corresponding to the area of the mounting cavity.

In the above technical scheme, the battery monomer is provided with the shell and holds the electrode assembly in the shell and set up the electrode terminal on the shell, through the first surface of mounting bracket corresponds the region of installing the chamber direct or indirect butt on the free shell of battery in the second direction, be favorable to reducing the degree of difficulty of the mutual butt assembly of first surface and the battery monomer of mounting bracket, and make the free temperature of battery can transmit to the installation intracavity of mounting bracket better, so that the free temperature of battery is detected to the temperature detection spare, be favorable to further promoting the free temperature of temperature detection spare and detect the precision and the degree of accuracy of battery.

In some embodiments, the mounting cavity is formed with the opening in at least one end of the mounting bracket along a third direction, the third direction being perpendicular to the first and second directions.

In the above-mentioned technical scheme, through the opening with the installation cavity forms in the installation frame one side in the third direction for the installation frame sets up opening, assembly portion and separating groove's region is located the installation frame one side in the equidirectional respectively, can reduce the interference influence when setting up opening, assembly portion and separating groove on the installation frame on the one hand, is favorable to reducing the preparation degree of difficulty of installation frame, on the other hand can reduce and be used for assembling the interference influence between opening and the assembly portion of temperature detection spare on the installation frame, thereby be convenient for assemble the installation cavity to the installation frame with the temperature detection spare, and be convenient for assemble the installation frame on converging the part.

In some embodiments, the mounting cavity extends through both ends of the mounting frame in the third direction, so that the openings are formed at both ends of the mounting frame in the third direction.

In the above technical scheme, through setting up the installation cavity to the structure at the both ends of running through the mounting bracket along the third direction for the installation cavity can all form the opening at the mounting bracket along the ascending both ends of third direction, thereby be convenient for form the installation cavity at the internal processing of mounting bracket on the one hand, be favorable to reducing the manufacturing degree of difficulty in the installation cavity of mounting bracket, on the other hand be convenient for assemble the installation cavity to the mounting bracket with the temperature detection spare, be favorable to further reducing the assembly degree of difficulty between temperature detection spare and the mounting bracket.

In some embodiments, the mounting frame is provided with a clamping groove, the clamping groove is in clamping fit with the bus component, and the clamping groove is the assembly part.

In the above technical scheme, the assembly part through the mounting bracket is set to the draw-in groove structure on the mounting bracket, and draw-in groove and the cooperation of converging part joint to with the assembly part and the mutual assembly connection of converging part of mounting bracket, simple structure, and the assembly of being convenient for.

In some embodiments, the clamping grooves are formed in the surface of at least one side of the mounting frame in the first direction, the separation grooves are formed in the surface of one side of the mounting frame in the second direction, the clamping grooves penetrate through two ends of the mounting frame in the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

In the above technical scheme, set up on the surface of one side of mounting bracket in first direction through the draw-in groove, the draw-in groove runs through the both sides of mounting bracket along the third direction, and the separating groove sets up on the surface of one side of mounting bracket in the second direction, thereby can also further reduce the shaping degree of difficulty of the draw-in groove as the assembly portion when reducing interference influence between draw-in groove and the separating groove, with the manufacturing degree of difficulty of reduction mounting bracket, on the other hand can further reduce the degree of difficulty of the partial card of converging part in the draw-in groove, with the assembly degree of difficulty between reducing converging part and the assembly portion, thereby can effectively promote the production efficiency of battery.

In some embodiments, a notch is formed at one end of the bus component in the third direction, the notch penetrates through two sides of the bus component along the second direction, the mounting rack is inserted into the notch along the third direction, and a part of the bus component is clamped in the clamping groove.

In the above technical scheme, the one end of converging the part in the third direction is provided with the breach, and the breach is the structure of running through the both sides of converging the part in the second direction for the mounting bracket is inserted in the breach of converging the part along the third direction and is located the part of converging the part in the draw-in groove of mounting bracket simultaneously, can realize that the part of converging the part is for inserting the structure of locating the draw-in groove in the third direction from the draw-in groove one end, the battery that adopts this kind of structure can promote the firm nature and the stability on the mounting bracket assembly to converging the part of temperature sampling assembly, and can also play certain location and limiting displacement to the mounting bracket of temperature sampling assembly through the breach of converging the part, be favorable to promoting the assembly quality of mounting bracket and converging the part of temperature sampling assembly.

In some embodiments, the mounting frame is provided with the clamping groove on the surfaces of both sides in the first direction.

In the above technical scheme, through all setting up the draw-in groove on the surface of the both sides of mounting bracket along the first direction for the mounting bracket all is formed with assembly portion in the both sides of first direction, makes the conflux part in the draw-in groove of mounting bracket both sides along the opposite both sides of first direction of breach department, thereby can further promote the mounting bracket of temperature sampling subassembly and assemble firm and the stability on the conflux part, be favorable to further promoting the mounting bracket of temperature sampling subassembly and the assembly quality of conflux part.

In some embodiments, the mounting bracket is spaced apart from the bus member along the third direction.

In the above technical scheme, through setting up the mounting bracket and the component that converges into the structure that the interval set up in the third direction for the mounting bracket does not contact with the component that converges in the third direction, thereby can also further alleviate the phenomenon that the temperature on the component that converges directly transmits to the mounting bracket when promoting the assembly stability of mounting bracket and the component that converges, thereby can further reduce the influence of the temperature on the component that converges to the temperature detection piece.

In some embodiments, the clamping groove is provided with two groove side surfaces which are oppositely arranged in the second direction, and at least one groove side surface is convexly provided with a pressing part, wherein the pressing part is positioned at one side of the converging component along the second direction, and the pressing part presses the part of the converging component clamped in the clamping groove.

In the above technical scheme, through protruding the portion of pressing of establishing on the at least one groove side of draw-in groove, and press the portion of pressing along the second direction to press in the ascending one side of converging the part in the second direction, thereby can realize converging the part of part card in the draw-in groove and press the portion to be interference fit's structure, and then can further promote the fastness that converges the part card in the draw-in groove of mounting bracket, with the assembly stability between the assembly portion of further promotion mounting bracket and the converging part, be favorable to further promoting the stability that temperature sampling assembly's mounting bracket assembled to converging on the part.

In some embodiments, the pressing portion is protruding from both side surfaces of the groove.

In the above technical scheme, through all setting up the portion of supporting on two groove sides of draw-in groove for the part that converges the flow part card in the draw-in groove can all support and press on the portion of supporting in the both sides of second direction, is favorable to further promoting the fastness that converges flow part card in the draw-in groove of mounting bracket, in order to further promote assembly stability and the fastness between assembly portion and the converging flow part of mounting bracket.

In some embodiments, the clamping groove further has a groove bottom surface connecting the two groove side surfaces, the groove bottom surface being convexly provided with a support portion located in the notch, the support portion being configured to separate the converging component from the groove bottom surface along the first direction.

In the above technical scheme, through protruding the establishing supporting part on the groove bottom surface of draw-in groove, and the supporting part is located in the breach of converging the part for the supporting part can support between the part of converging the part card in the draw-in groove and the tank bottom surface of draw-in groove, thereby can realize converging the part card in the draw-in groove and the mutually spaced structure of tank bottom surface of draw-in groove, with the temperature of reducing converging the part transmission to the mounting bracket, and then can further reduce the temperature on the part of converging and to the influence of temperature detection spare, be favorable to promoting temperature detection spare and detect the precision and the degree of accuracy of battery monomer's temperature.

In some embodiments, the pressing part is provided with a pressing surface pressed against the confluence part in the second direction, wherein the pressing part is further provided with two guide inclined planes which are respectively positioned at two sides of the pressing surface in the third direction, and the guide inclined planes are connected with the pressing surface and the groove side surfaces.

In the above technical scheme, the pressing part is provided with the pressing surface mutually pressing with the converging part in the second direction, and the pressing part is also provided with the guide inclined planes respectively positioned at the two sides of the pressing surface in the third direction, so that the guide inclined planes can be connected with the pressing surface and the groove side surfaces of the clamping groove, thereby playing a certain guiding role on the converging part through the guide inclined planes in the process of inserting the converging part into the clamping groove along the third direction, being convenient for the guide inclined planes to guide the converging part to the position mutually pressing with the pressing surface, further being capable of relieving the phenomenon that the pressing part and the converging part are mutually blocked, being favorable for reducing the difficulty of mutually pressing the pressing part and the converging part, and reducing the assembly difficulty between the converging part and the assembly part of the mounting frame.

In some embodiments, the temperature sampling assembly further comprises a sealant, wherein the sealant is filled in the mounting cavity, and the sealant covers the temperature detection member.

In the above-mentioned technical scheme, still fill in the installation cavity of mounting bracket has the sealant, and temperature detection spare is wrapped by the sealant, can promote temperature detection spare on the one hand and install stability and reliability in the installation cavity, and can further stabilize temperature detection spare to alleviate temperature detection spare and appear rocking or collide with etc. phenomenon in the installation cavity, on the other hand can also realize sealing temperature detection spare, in order to reduce temperature detection spare and damage etc. phenomenon after the damp, thereby be favorable to promoting temperature detection spare life.

In some embodiments, the temperature sampling assembly further comprises a connection wire having one end extending into the mounting cavity and connected to the temperature sensing element and the other end located outside the mounting cavity for electrical connection with a battery management system.

In the above technical scheme, the temperature sampling subassembly still is provided with the connecting wire, and the one end of connecting wire extends to the installation intracavity and links to each other with the temperature detection spare, and the other end is located the installation intracavity and is used for being connected with battery management system electricity to reduce the degree of difficulty of mutual electric connection between temperature detection spare and the battery management system, and can be first with the connecting wire with the temperature detection spare after assembling each other again be connected with battery management system electricity through the connecting wire in the battery, be favorable to optimizing the production beat of battery, in order to promote the production efficiency of battery.

In a second aspect, an embodiment of the present application further provides an electrical device, including the above battery device, where the battery device is configured to provide electrical energy.

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 will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

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

FIG. 3 is a schematic diagram illustrating an assembled battery cell assembly and a sampling assembly according to some embodiments of the present application;

Fig. 4 is a schematic diagram illustrating an assembly of a battery cell and a bus member according to some embodiments of the present application;

Fig. 5 is a schematic view of a partial structure of a battery device according to some embodiments of the present application;

FIG. 6 is an exploded view of a temperature sampling assembly according to some embodiments of the present application;

FIG. 7 is a schematic view of a mounting frame for a temperature sampling assembly according to some embodiments of the present application;

FIG. 8 is a front view in a third direction of a mounting bracket for a temperature sampling assembly provided in some embodiments of the present application;

FIG. 9 is a cross-sectional view of a mounting bracket of a temperature sampling assembly provided in some embodiments of the present application perpendicular to a third direction;

FIG. 10 is a schematic view of a bus member according to some embodiments of the present application;

fig. 11 is an enlarged view of a portion of the mounting bracket shown in fig. 7 at a.

The icons are 1000-vehicle, 100-battery device, 10-case, 11-first case body, 12-second case body, 20-battery cell assembly, 21-battery cell, 211-electrode terminal, 212-case, 22-bus bar, 221-notch, 30-sample assembly, 31-wire harness assembly, 32-temperature sample assembly, 321-temperature detection piece, 322-mount, 3221-mount portion, 3222-opening, 3223-mount cavity, 3224-partition groove, 3225-clamping groove, 3225 a-groove side surface, 3225 b-groove bottom surface, 3226-first surface, 3227-second surface, 3228-pressing portion, 3228 a-pressing surface, 3228 b-guiding inclined surface, 3229-supporting portion, 323-sealant, 324-connecting wire, 40-insulator, 200-controller, 300-motor, X-first direction, Y-second direction, Z-third direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the 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 terms used in the description of this application in this application are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of this application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification 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.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present application is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate that a exists alone, while a and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the application shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the application in any way.

The term "plurality" as used herein refers to two or more (including two).

In the embodiment of the application, the battery cell can be a secondary battery, and the secondary battery refers to a battery cell which can activate the active material in a charging mode to continue to use after the battery cell discharges.

The battery cell may be a lithium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited by the embodiment of the application.

The battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge of the battery cell, active ions (e.g., lithium ions) are inserted and extracted back and forth between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode, can play a role in preventing the positive electrode and the negative electrode from being short-circuited, and can enable active ions to pass through.

In some embodiments, the electrode assembly is a rolled structure. The positive plate and the negative plate are wound into a winding structure.

In some embodiments, the electrode assembly is a lamination stack.

In some embodiments, the electrode assembly may have a cylindrical shape, a flat shape, a polygonal column shape, or the like.

In some embodiments, the electrode assembly is provided with tabs that can conduct current away from the electrode assembly. The tab includes a positive tab and a negative tab.

In some embodiments, the battery cell may include a housing. The case is used to encapsulate the electrode assembly, the electrolyte, and the like. The shell can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), an aluminum-plastic film or the like.

As examples, the battery cells may be cylindrical battery cells, prismatic battery cells, pouch battery cells, or other shaped battery cells, including but not limited to square-case battery cells, blade-shaped battery cells, polygonal prismatic batteries, such as hexagonal-prismatic batteries, and the like.

The battery device (Battery Apparatus) as referred to in embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include a plurality of battery cells connected in series, parallel, or series-parallel by a bus bar.

In some embodiments, the Battery cell assembly (Battery Cell Assembly) is typically formed by arranging a plurality of Battery cells, and by way of example, the Battery cell assembly may be a Battery Module (Battery Module) formed by arranging and fixing a plurality of Battery cells to form a single Module. As an example, the battery module may be formed by binding a plurality of battery cells by a tie.

In some embodiments, the battery device may be a battery Pack (battery Pack) that includes a case and one or more battery cell assemblies housed in the case.

As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the case in such a manner that the battery module is fixed in the case.

As an example, the battery cell assembly may be accommodated in the case by directly fixing a plurality of battery cells to the case.

As an example, the case may include a first case body and a second case body. The first box body and the second box body are buckled, so that a closed space is formed inside the box body to accommodate the battery cell assembly. The closing means covering or closing, and can be sealing or unsealing. The first tank body may be a top cover or a bottom plate.

As an example, the case may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected with the frame, so that a closed space is formed inside the box body to accommodate the battery cell assembly.

As an example, the tank may be part of the chassis structure of the vehicle. For example, the roof of the tank may become at least part of the floor of the vehicle, or the frame of the tank may become at least part of the cross and longitudinal beams of the vehicle.

In some embodiments, the battery device refers to an energy storage device that includes a housing with a door on at least one side of the housing. The energy storage device comprises an energy storage container, an energy storage electric cabinet and the like.

The battery device has the outstanding advantages of high energy density, small environmental pollution, high power density, long service life, wide application range, small self-discharge coefficient and the like, and is an important component of the development of new energy sources at present. The development of battery technology is taking into consideration various design factors such as energy density, cycle life, discharge capacity, charge-discharge rate and other performance parameters, and the safety of battery devices.

For general battery monomer, battery device includes the box and set up a plurality of battery monomers in the box, a plurality of battery monomers are connected through the part electricity that converges, in order to realize the series connection or the parallelly connected between a plurality of battery monomers, in the correlation technique, in order to guarantee the free security of battery, generally can set up temperature sampling assembly in battery device, can gather and monitor the free temperature of battery in the use through temperature sampling assembly, so as to obtain the service condition of battery device, wherein, temperature sampling assembly usually includes temperature sensor and the mounting bracket that is used for assembling temperature sensor, the mounting bracket is usually installed on battery device's the part that converges, and mounting bracket and battery monomer contact each other, make the temperature sensor who holds in the mounting bracket can detect the free temperature of battery, however, the battery device of this kind of structure also can pass through the mounting bracket to the temperature sensor on because of the temperature on the part that converges, result that temperature sensor detected the free temperature of battery is inaccurate, thereby can't effectively obtain the free service condition of battery inside the battery device, be unfavorable for promoting battery device's stability and reliability.

Based on the above considerations, in order to solve the problem of low use stability and reliability of the battery device, the embodiment of the application provides a battery device, which includes a plurality of battery cells, a confluence part and a temperature sampling assembly. The confluence part is electrically connected with the plurality of battery cells. The temperature sampling assembly comprises a temperature detection part and a mounting frame, wherein the temperature detection part is configured to detect the temperature of a battery cell, the mounting frame is provided with an assembly part, the assembly part is assembled and connected with a converging part, an installation cavity with an opening is formed in the mounting frame, the installation cavity and the assembly part are distributed at intervals along a first direction, the installation cavity is arranged at intervals with the converging part, and the temperature detection part is accommodated in the installation cavity. The mounting frame is also provided with a separation groove, and the separation groove is positioned between the mounting cavity and the assembly part in the first direction.

In the battery device of this kind of structure, install the temperature sampling subassembly on the battery device's the part that converges, the temperature sampling subassembly is provided with mounting bracket and temperature detection spare, the mounting bracket has the assembly portion of being connected with the part that converges, and the inside of mounting bracket is formed with the installation cavity, installation cavity and part interval setting that converges, through the assembly portion assembly connection with the mounting bracket on converging the part, and set up the temperature detection spare in the installation cavity of mounting bracket, install on converging the part with the realization temperature detection spare, make the temperature detection spare of temperature sampling subassembly can detect the free temperature of battery, in order to obtain the free temperature information of battery in the use, wherein, assembly portion and installation cavity are the structure of arranging along first direction interval, and set up the spread groove on the mounting bracket, the spread groove is located between the installation cavity of mounting bracket and the assembly portion in first direction, make the temperature on converging the part through the in-process spread groove that the assembly portion transmits to the installation cavity can play certain separation and separation effect, in order to alleviate the temperature transmission on the part that converges, thereby can reduce the temperature on the part and to detect the free temperature, the battery can be favorable to the temperature detection spare, and the temperature accuracy of battery can be improved to the battery, and the device can be used to obtain the stability and stability.

The battery device disclosed by the embodiment of the application can be used for electric devices such as vehicles, ships or aircrafts, but is not limited to the electric devices. The power supply system with the battery device and the like disclosed by the application can be used for forming the power utilization device, so that the problem that the temperature of the battery cell is inaccurate in result by the temperature sampling assembly is solved, and the use stability and reliability of the battery device are improved.

The embodiment of the application provides an electricity utilization device using a battery device as a power supply, wherein the electricity utilization 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 embodiments will take an electric device according to an embodiment of the present application as an example of a vehicle.

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 device 100 is provided in the vehicle 1000, and the battery device 100 may be provided at the bottom of the vehicle 1000, at the head of the vehicle 1000, or at the tail of the vehicle 1000. The battery device 100 may be used for power supply of the vehicle 1000, for example, the battery device 100 may be used as an operation power source or a use power source of the vehicle 1000, or the like. The vehicle 1000 may further include a controller 200 and a motor 300, the controller 200 being configured to control the battery device 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, the battery device 100 may not only be used as an operating power source or a utility power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle 1000.

Referring to fig. 2 and 3, fig. 2 is an exploded view of a battery device 100 according to some embodiments of the present application, and fig. 3 is an assembled schematic view of a battery cell assembly 20 and a sampling assembly 30 according to some embodiments of the present application. The battery device 100 includes a case 10 and at least one battery cell assembly 20, the battery cell assembly 20 being accommodated in the case 10, the battery cell assembly 20 including a plurality of battery cells 21 stacked in a first direction X.

The case 10 is used to provide an assembly space for the battery cell assembly 20, and the case 10 may have various structures. In some embodiments, the case 10 may include a first case body 11 and a second case body 12, the first case body 11 and the second case body 12 being overlapped with each other in the second direction Y, the first case body 11 and the second case body 12 together defining an assembly space for accommodating the battery cell assembly 20. The second box body 12 may be a hollow structure with one end opened, the first box body 11 may be a plate-shaped structure, the first box body 11 covers the open side of the second box body 12, so that the first box body 11 and the second box body 12 jointly define an assembly space, the first box body 11 and the second box body 12 may be hollow structures with one side opened, and the open side of the first box body 11 covers the open side of the second box body 12.

Of course, the case 10 formed by the first case body 11 and the second case body 12 may be of various shapes, such as a cylinder, a rectangular parallelepiped, or a square, etc. Illustratively, in fig. 2, the case 10 is rectangular in shape.

Alternatively, in the battery device 100, the battery cell assembly 20 accommodated in the case 10 may be one or more. When there are a plurality of battery cell assemblies 20 disposed in the case 10, the plurality of battery cell assemblies 20 may be connected in series or parallel or a series-parallel connection, and the series-parallel connection refers to that the plurality of battery cell assemblies 20 are connected in series or parallel. The plurality of battery cell assemblies 20 can be directly connected in series, in parallel or in series-parallel, and then the whole formed by the plurality of battery cell assemblies 20 is accommodated in the box 10.

As illustrated in fig. 2 and 3, the battery device 100 includes two battery cell assemblies 20, the two battery cell assemblies 20 are arranged along the third direction Z, and the two battery cell assemblies 20 are connected in series with each other.

In fig. 3, each of the battery cell assemblies 20 includes a bus member 22 and a plurality of battery cells 21 stacked in the first direction X, the bus member 22 being located at one side of the plurality of battery cells 21 in the second direction Y, the bus member 22 being for connecting the plurality of battery cells 21 to achieve electrical connection between the plurality of battery cells 21. Illustratively, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other, the first direction X is the thickness direction of the battery cell 21, the second direction Y is the height direction of the battery cell 21, and the third direction Z is the length direction of the battery cell 21.

Referring to fig. 3, and further referring to fig. 4, fig. 4 is an assembly schematic diagram of a battery cell 21 and a bus member 22 according to some embodiments of the present application. The battery cell 21 is provided at one end thereof in the second direction Y with two electrode terminals 211 having opposite polarities, the two electrode terminals 211 being adapted to input or output electric power of the battery cell 21 in cooperation with each other, and the bus member 22 is connected to the electrode terminals 211 of the battery cell 21 to electrically connect the plurality of battery cells 21. The plurality of battery cells 21 in the battery cell assembly 20 may be configured in series or parallel, and the like, and in fig. 3, the plurality of battery cells 21 in the battery cell assembly 20 are configured in series in sequence by a plurality of bus members 22, for example.

Alternatively, each of the battery cells 21 may be a secondary battery or a primary battery, and may be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 21 may have a rectangular parallelepiped, a cylinder, a prismatic body, or other shape. Illustratively, in fig. 2 and 3, the battery cell 21 is of a rectangular parallelepiped structure.

In some embodiments, referring to fig. 2 and 3, the battery device 100 may further include a sampling assembly 30, the sampling assembly 30 being disposed in the case 10, the sampling assembly 30 being configured to be electrically connected with a battery management system of the battery device 100, the sampling assembly 30 including a wire harness assembly 31 and a temperature sampling assembly 32, the temperature sampling assembly 32 being configured to detect a temperature of the battery cell 21, the wire harness assembly 31 being configured to be electrically connected with the battery management system, the temperature sampling assembly 32 being electrically connected with the wire harness assembly 31 to enable the temperature sampling assembly 32 to be electrically connected with the battery management system through the wire harness assembly 31.

The sampling assemblies 30 are arranged in a one-to-one correspondence with the battery cell assemblies 20, and each battery cell assembly 20 is correspondingly provided with one sampling assembly 30.

Illustratively, the sampling assembly 30 is located on a side of the battery cell assembly 20 where the buss member 22 is disposed in the second direction Y.

In some embodiments, referring to fig. 2 and 3, the battery device 100 may further include an insulating member 40, where the insulating member 40 is disposed between the sampling assembly 30 and the plurality of battery cells 21 in the second direction Y to insulate the sampling assembly 30 from the battery cells 21, so as to reduce the risk of overlap between the sampling assembly 30 and the battery cells 21, so as to alleviate the internal shorting of the battery device 100 during use, and improve the reliability of use of the battery device 100.

The insulating member 40 serves to insulate the battery cell 21 from the sampling assembly 30, and the insulating member 40 may be made of various materials, for example, rubber, silica gel, plastic, or the like.

Illustratively, the converging member 22 is disposed on a side of the insulating member 40 away from the battery cell 21, such that the converging member 22 and the sampling assembly 30 are both located on a side of the insulating member 40 away from the battery cell 21 in the second direction Y, and correspondingly, first avoiding holes (not shown in the drawings) are disposed on the insulating member 40, and the first avoiding holes penetrate through two sides of the insulating member 40 along the second direction Y, and each first avoiding hole is used for passing through one electrode terminal 211 of one battery cell 21, so that the electrode terminal 211 is connected with the converging member 22.

Referring to fig. 3 and 4, and further referring to fig. 5, 6, 7, 8, and 9, fig. 5 is a schematic partial structure view of a battery device 100 according to some embodiments of the present application, fig. 6 is a schematic exploded structure view of a temperature sampling assembly 32 according to some embodiments of the present application, fig. 7 is a schematic structure view of a mounting frame 322 of the temperature sampling assembly 32 according to some embodiments of the present application, fig. 8 is a front view of the mounting frame 322 of the temperature sampling assembly 32 according to some embodiments of the present application in a third direction Z, and fig. 9 is a cross-sectional view of the mounting frame 322 of the temperature sampling assembly 32 according to some embodiments of the present application perpendicular to the third direction Z. The present application provides a battery device 100, the battery device 100 including a plurality of battery cells 21, a confluence part 22, and a temperature sampling assembly 32. The bus member 22 electrically connects the plurality of battery cells 21. The temperature sampling assembly 32 includes a temperature detecting member 321 and a mounting bracket 322, the temperature detecting member 321 is configured to detect the temperature of the battery cell 21, the mounting bracket 322 has a fitting portion 3221, the fitting portion 3221 is fitted and connected with the bus member 22, and a mounting cavity 3223 having an opening 3222 is formed inside the mounting bracket 322, the mounting cavity 3223 and the fitting portion 3221 are arranged at intervals along the first direction X, and the mounting cavity 3223 is arranged at intervals with the bus member 22, the temperature detecting member 321 is accommodated in the mounting cavity 3223. The mounting bracket 322 is further provided with a partition groove 3224, and the partition groove 3224 is located between the mounting cavity 3223 and the fitting portion 3221 in the first direction X to partition the mounting cavity 3223 and the fitting portion 3221.

Wherein, temperature sampling assembly 32 includes temperature detection spare 321 and mounting bracket 322, and temperature detection spare 321 plays the effect of detecting the temperature of battery monomer 21, and temperature detection spare 321 passes through wire harness assembly 31 and is connected with the battery management system electricity to can realize the control and acquire the temperature information of battery monomer 21 in the use. And the temperature detecting member 321 is mounted on the mounting bracket 322, and the mounting bracket 322 is mounted on the confluence part 22 such that the mounting bracket 322 functions to assemble and fix the temperature detecting member 321.

Illustratively, the structure of the temperature detecting member 321 may be various, for example, the temperature detecting member 321 may be an epoxy thermistor, a glass-sealed thermistor, or the like.

Illustratively, the material of the mounting frame 322 may be various, for example, the material of the mounting frame 322 may be polypropylene, polycarbonate, polyphenylene sulfide, or poly (hexamethylene terephthalamide).

The mounting frame 322 has a fitting portion 3221, the fitting portion 3221 is assembled with the bus member 22, that is, the fitting portion 3221 is a structure of the mounting frame 322 for mutually assembled and connected with the bus member 22, wherein the structure of the fitting portion 3221 may be various, and for example, in fig. 7 and 8, the fitting portion 3221 is a clamping groove 3225 provided on the mounting frame 322, and the clamping groove 3225 can be used for clamping part of the bus member 22 so as to realize assembled and connected between the fitting portion 3221 and the bus member 22, and of course, in other embodiments, the fitting portion 3221 may also be a bolt or an adhesive layer on the mounting frame 322, and the mounting frame 322 may be clamped with the bus member 22 by the bolt, or may be adhered with the bus member 22 by the adhesive layer, or the like.

The inside of the mounting bracket 322 forms a mounting cavity 3223 having an opening 3222, the temperature detecting member 321 is accommodated in the mounting cavity 3223, that is, the inside of the mounting bracket 322 is formed with a mounting cavity 3223 for assembling the temperature detecting member 321, and the mounting cavity 3223 penetrates at least one end of the mounting bracket 322 to form the opening 3222 on the mounting bracket 322, and the opening 3222 communicates with the mounting cavity 3223.

The installation cavities 3223 and the fitting portions 3221 are arranged at intervals along the first direction X, that is, the installation cavities 3223 are provided with the fitting portions 3221 on at least one side in the first direction X, and the installation cavities 3223 are arranged at intervals from the fitting portions 3221, and illustratively, in fig. 7 and 8, the installation cavities 3223 are provided with the fitting portions 3221 on both sides in the first direction X, that is, the installation frame 322 is provided with two fitting portions 3221 arranged at intervals along the first direction X, and the installation cavities 3223 are located between the two fitting portions 3221 in the first direction X.

The installation cavity 3223 is disposed at a distance from the bus member 22, that is, the installation cavity 3223 is disposed at a distance from the bus member 22 in any direction.

The separation groove 3224 is located between the installation cavity 3223 and the fitting portion 3221 in the first direction X to separate the installation cavity 3223 and the fitting portion 3221, that is, the separation groove 3224 is provided between the installation cavity 3223 and the fitting portion 3221 along the first direction X, so that the installation cavity 3223 and the fitting portion 3221 are a structure separated from each other by the separation groove 3224.

In this embodiment, install temperature sampling subassembly 32 on the collection flow part 22 of battery device 100, temperature sampling subassembly 32 is provided with mounting bracket 322 and temperature detection piece 321, mounting bracket 322 has the assembly portion 3221 of being connected with collection flow part 22 assembly, and the inside of mounting bracket 322 is formed with installation cavity 3223, installation cavity 3223 and collection flow part 22 interval set up, through the assembly portion 3221 assembly connection of mounting bracket 322 on collection flow part 22, and with temperature detection piece 321 setting up in installation cavity 3223 of mounting bracket 322, in order to realize temperature detection piece 321 and install on collection flow part 22, make temperature detection piece 321 of temperature sampling subassembly 32 can detect the temperature of battery cell 21, in order to obtain the temperature information of battery cell 21 in the use, wherein, assembly portion 3221 and installation cavity 3223 are along the structure of first direction X interval arrangement, and set up separating groove 3224 on mounting bracket 322, separating groove 3224 is located between installation cavity 3223 and assembly portion 3221 of mounting bracket 322 in first direction X, make the temperature on collection flow part 22 pass through assembly portion 3221 and transmit to the installation cavity 3223 in order to realize temperature detection piece 321 and can be favorable to the temperature measurement device to the temperature measurement piece 321 in order to obtain the temperature measurement cell 21 in order to reduce the temperature measurement device in order to realize that the temperature measurement cell device can be more than the temperature measurement piece 321 can be more than the temperature measurement piece 21 in order to realize the temperature measurement cell device in the temperature measurement device and the temperature measurement piece 21 in order to use the temperature measurement cell piece 100 and the temperature measurement device of temperature measurement piece's inside can be more than the temperature measurement in addition to the temperature measurement of temperature in the temperature measurement of temperature and more than can in addition to the temperature.

According to some embodiments of the present application, referring to fig. 7, 8 and 9, the mounting bracket 322 is provided with a fitting portion 3221 on at least one side in a first direction X, the mounting bracket 322 has opposite first and second surfaces 3226 and 3227 in a second direction Y, at least one of the first and second surfaces 3226 and 3227 is provided with a separation groove 3224, and the second direction Y is perpendicular to the first direction X.

Wherein the mounting frame 322 has a first surface 3226 and a second surface 3227 opposite to each other in the second direction Y, at least one of the first surface 3226 and the second surface 3227 is provided with a separation groove 3224, that is, the mounting frame 322 is provided with the separation groove 3224 on at least one side in the second direction Y, alternatively, only one side of the mounting frame 322 in the second direction Y may be provided with the separation groove 3224, or both sides of the mounting frame 322 in the second direction Y may be provided with the separation groove 3224, and it should be noted that, in the embodiment in which both sides of the mounting frame 322 in the second direction Y are provided with the separation grooves 3224 located on both sides of the mounting frame 322 in the second direction Y may be structures that are mutually penetrating and communicating, that is, the separation groove 3224 is provided on the first surface 3226, and the separation groove 3224 penetrates the second surface 3227 in the second direction Y.

In the present embodiment, by providing the fitting portion 3221 on one side of the mounting bracket 322 in the first direction X, and providing the partition groove 3224 on at least one of the first surface 3226 and the second surface 3227 opposite to each other in the second direction Y perpendicular to the first direction X of the mounting bracket 322, the partition groove 3224 is conveniently provided between the mounting cavity 3223 and the fitting portion 3221 in the first direction X, which is beneficial to reducing the difficulty of providing the partition groove 3224 on the mounting bracket 322, and being capable of improving the difficulty of separating the mounting cavity 3223 and the fitting portion 3221 by the partition groove 3224, which is beneficial to improving the effect that the partition groove 3224 blocks the temperature on the bus component 22 from being transferred into the mounting cavity 3223 through the fitting portion 3221, so as to alleviate the phenomenon that the temperature on the bus component 22 is transferred into the mounting cavity 3223, and further being capable of reducing the influence of the temperature on the bus component 22 on the temperature detecting member 321.

In some embodiments, referring to fig. 9, in the second direction Y, separation grooves 3224 extend through first surface 3226 and second surface 3227.

In this embodiment, by setting the separation groove 3224 to a structure penetrating the first surface 3226 and the second surface 3227 in the second direction Y, so that the separation groove 3224 is a through groove structure penetrating both sides of the mounting frame 322 along the second direction Y, the effect that the separation groove 3224 blocks the temperature on the bus component 22 from being transferred into the mounting cavity 3223 through the assembly portion 3221 can be further improved, the phenomenon that the temperature on the bus component 22 is transferred into the mounting cavity 3223 can be further relieved, and the influence of the temperature on the bus component 22 on the temperature detecting member 321 can be further reduced, so that the accuracy and the precision of the temperature of the battery cell 21 detected by the temperature detecting member 321 can be further improved.

In some embodiments, referring to fig. 7, 8 and 9, the mounting bracket 322 has fitting portions 3221 on both sides in the first direction X, and the mounting cavity 3223 is located between the two fitting portions 3221 in the first direction X. Two separation grooves 3224 are provided on the mounting bracket 322, and separation grooves 3224 are provided between the two fitting portions 3221 and the mounting cavity 3223 along the first direction X.

Wherein, along the first direction X, separation grooves 3224 are disposed between the two fitting portions 3221 and the mounting cavity 3223, that is, one fitting portion 3221, one separation groove 3224, the mounting cavity 3223, the other separation groove 3224, and the other fitting portion 3221 are sequentially arranged at intervals along the first direction X.

In this embodiment, the assembly portions 3221 are disposed on two sides of the mounting frame 322 along the first direction X, and the separation grooves 3224 are disposed between each assembly portion 3221 and the mounting cavity 3223, so that the mounting frame 322 can be assembled and connected with the bus component 22 on two sides of the first direction X while the temperature on the bus component 22 is relieved and the stability and firmness of the assembly of the mounting frame 322 on the bus component 22 are improved.

According to some embodiments of the application, as shown in connection with fig. 3, 5 and 7, the first surface 3226 is arranged facing the battery cell 21 in the second direction Y. The region of the first surface 3226 corresponding to the mounting cavity 3223 in the second direction Y directly or indirectly abuts against the battery cell 21.

Wherein the area of the first surface 3226 corresponding to the installation cavity 3223 in the second direction Y directly or indirectly abuts against the battery cell 21, that is, along the second direction Y, the portion of the installation frame 322 located between the cavity wall surface of the installation cavity 3223 and the first surface 3226 may be a structure that is in direct contact with the battery cell 21 or in indirect contact with other components.

In this embodiment, the area of the first surface 3226 of the mounting frame 322 corresponding to the mounting cavity 3223 in the second direction Y is configured to directly or indirectly abut against the battery unit 21, so that the temperature on the battery unit 21 is transferred into the mounting cavity 3223 of the mounting frame 322, thereby being beneficial to improving the precision and accuracy of the temperature detection unit 321 for detecting the temperature of the battery unit 21.

In some embodiments, as shown in fig. 3, 7 and 8, a region of the first surface 3226 corresponding to the mounting cavity 3223 is provided with a thermal pad (not shown) along the second direction Y, and the thermal pad abuts against the battery cell 21. That is, the portion of the mounting bracket 322 located between the cavity wall surface of the mounting cavity 3223 and the first surface 3226 in the second direction Y is in indirect contact with the battery cell 21 through the heat conductive pad.

Illustratively, the material of the heat-conducting pad may be various, for example, the material of the heat-conducting pad may be silica gel, silicone grease, silicone rubber, or the like.

It should be noted that, in the embodiment of the present application, a heat conducting pad is disposed along the second direction Y in a region of the first surface 3226 corresponding to the mounting cavity 3223, so that a portion of the mounting frame 322 located between the cavity wall surface of the mounting cavity 3223 and the first surface 3226 in the second direction Y is a structure that indirectly abuts against the battery cell 21 through the heat conducting pad. Correspondingly, the insulating member 40 is provided with a second avoidance hole (not shown in the figure) at a position corresponding to the mounting frame 322 in the second direction Y, and the second avoidance hole penetrates through two sides of the insulating member 40 along the second direction Y, so that the insulating member 40 can avoid the mounting frame 322, and the mounting frame 322 is abutted with the battery cell 21 through the heat conducting pad.

In this embodiment, the heat conducting pad is disposed on the area of the first surface 3226 of the mounting frame 322 corresponding to the mounting cavity 3223 in the second direction Y, and the heat conducting pad is mutually abutted with the battery cell 21, so that the area of the first surface 3226 of the mounting frame 322 corresponding to the mounting cavity 3223 in the second direction Y is a structure that the heat conducting pad indirectly contacts with the battery cell 21, and therefore the temperature of the battery cell 21 can be better transferred into the mounting cavity 3223 of the mounting frame 322 through the heat conducting pad, and the accuracy and precision of the temperature of the battery cell 21 detected by the temperature detecting member 321 can be further improved.

In some embodiments, as shown in fig. 3, 4, 5 and 7, the battery cell 21 includes a case 212, an electrode assembly (not shown) and an electrode terminal 211, the electrode assembly is accommodated in the case 212, the electrode terminal 211 is disposed on the case 212, the electrode terminal 211 is electrically connected to the electrode assembly, and the electrode terminal 211 is connected to the bus member 22, and the first surface 3226 is directly or indirectly abutted to the case 212 in a region corresponding to the mounting cavity 3223 in the second direction Y.

The area of the first surface 3226 corresponding to the mounting cavity 3223 in the second direction Y directly or indirectly abuts against the housing 212, that is, the portion of the mounting frame 322 located between the cavity wall surface of the mounting cavity 3223 and the first surface 3226 in the second direction Y is a structure that the mounting frame abuts or indirectly abuts against the housing 212 of the battery cell 21.

The electrode terminals 211 function to output or input electric power of the battery cell 21, the battery cell 21 includes two electrode terminals 211, the polarities of the two electrode terminals 211 are opposite, and both the electrode terminals 211 are disposed on a wall of the housing 212 facing one side of the sampling assembly 30 in the second direction Y.

In this embodiment, the battery unit 21 is provided with the housing 212, the electrode assembly accommodated in the housing 212, and the electrode terminal 211 disposed on the housing 212, by directly or indirectly abutting the first surface 3226 of the mounting bracket 322 on the housing 212 of the battery unit 21 in the second direction Y corresponding to the area of the mounting cavity 3223, the difficulty in mutually abutting and assembling the first surface 3226 of the mounting bracket 322 and the battery unit 21 is reduced, and the temperature of the battery unit 21 can be better transferred into the mounting cavity 3223 of the mounting bracket 322, so that the temperature detecting member 321 can detect the temperature of the battery unit 21, and the accuracy and precision in detecting the temperature of the battery unit 21 by the temperature detecting member 321 are further improved.

According to some embodiments of the present application, referring to fig. 7 and 8, the mounting cavity 3223 is formed with an opening 3222 at least one end of the mounting bracket 322 along a third direction Z, which is perpendicular to the first direction X and the second direction Y.

Wherein, the mounting cavity 3223 is formed with an opening 3222 at least one end of the mounting frame 322 along the third direction Z, that is, the mounting cavity 3223 may be formed with an opening 3222 at only one end of the mounting frame 322 along the third direction Z, or may be formed with openings 3222 at both ends of the mounting frame 322.

In the present embodiment, by forming the opening 3222 of the mounting cavity 3223 at one side of the mounting bracket 322 in the third direction Z, the regions where the opening 3222, the fitting portion 3221 and the partition groove 3224 are provided in the mounting bracket 322 are located at one side of the mounting bracket 322 in different directions, so that, on the one hand, interference influence when the opening 3222, the fitting portion 3221 and the partition groove 3224 are provided in the mounting bracket 322 can be reduced, manufacturing difficulty of the mounting bracket 322 can be reduced, and on the other hand, interference influence between the opening 3222 for fitting the temperature detecting member 321 and the fitting portion 3221 in the mounting bracket 322 can be reduced, thereby facilitating fitting of the temperature detecting member 321 into the mounting cavity 3223 of the mounting bracket 322, and facilitating fitting of the mounting bracket 322 on the bus member 22.

In some embodiments, referring to fig. 8 and 9, the mounting cavity 3223 penetrates both ends of the mounting bracket 322 in the third direction Z to form openings 3222 at both ends of the mounting bracket 322 in the third direction Z.

In this embodiment, through setting up installation cavity 3223 to the structure that runs through the both ends of mounting bracket 322 along third direction Z for installation cavity 3223 can all form opening 3222 at the both ends of mounting bracket 322 along third direction Z, thereby be convenient for on the one hand at the inside processing formation installation cavity 3223 of mounting bracket 322, be favorable to reducing the manufacturing difficulty in installation cavity 3223 of mounting bracket 322, on the other hand be convenient for assemble temperature detection spare 321 to in the installation cavity 3223 of mounting bracket 322, be favorable to further reducing the assembly degree of difficulty between temperature detection spare 321 and the mounting bracket 322.

According to some embodiments of the present application, referring to fig. 5, 6 and 7, a clamping groove 3225 is provided on the mounting frame 322, the clamping groove 3225 is in clamping engagement with the bus component 22, and the clamping groove 3225 is an assembling portion 3221.

The clamping groove 3225 is an assembling portion 3221, that is, the assembling portion 3221 is a clamping groove 3225 arranged on the mounting frame 322, and the clamping groove 3225 is in clamping fit with the bus component 22 so as to realize the assembling connection between the assembling portion 3221 of the mounting frame 322 and the bus component 22. Of course, in other embodiments, the fitting portion 3221 may be a pin or an adhesive layer provided on the mounting frame 322.

In this embodiment, the assembly portion 3221 of the mounting rack 322 is set to be of a clamping groove 3225 structure on the mounting rack 322, and the clamping groove 3225 is in clamping fit with the bus component 22, so that the assembly portion 3221 of the mounting rack 322 and the bus component 22 are assembled and connected with each other, and the structure is simple and convenient to assemble.

According to some embodiments of the present application, referring to fig. 5, 7 and 8, the mounting frame 322 is provided with a clamping groove 3225 on a surface of at least one side in the first direction X, the separation groove 3224 is provided on a surface of one side of the mounting frame 322 in the second direction Y, and the clamping groove 3225 penetrates through both ends of the mounting frame 322 in the third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

Wherein, the mounting frame 322 is provided with a clamping groove 3225 on the surface of at least one side in the first direction X, and the clamping groove 3225 penetrates through two ends of the mounting frame 322 along the third direction Z, that is, the clamping groove 3225 is a through groove arranged on the surface of one side of the mounting frame 322 in the first direction X and extending along the third direction Z, so that the converging component 22 can be clamped into the clamping groove 3225 from the first direction X, and can be inserted into the clamping groove 3225 from the third direction Z.

In this embodiment, the clamping groove 3225 is disposed on the surface of one side of the mounting frame 322 in the first direction X, the clamping groove 3225 penetrates through two sides of the mounting frame 322 along the third direction Z, and the separation groove 3224 is disposed on the surface of one side of the mounting frame 322 in the second direction Y, so that the molding difficulty of the clamping groove 3225 serving as the assembly portion 3221 can be further reduced while the interference influence between the clamping groove 3225 and the separation groove 3224 is reduced, the manufacturing difficulty of the mounting frame 322 is reduced, and on the other hand, the difficulty of the part of the converging component 22 being clamped in the clamping groove 3225 can be further reduced, so that the assembly difficulty between the converging component 22 and the assembly portion 3221 is reduced, and the production efficiency of a battery can be effectively improved.

Referring to fig. 5, 6 and 7, and further referring to fig. 10, fig. 10 is a schematic structural diagram of a bus member 22 according to some embodiments of the present application. The confluence member 22 is provided at one end thereof in the third direction Z with a notch 221, and the notch 221 penetrates both sides of the confluence member 22 in the second direction Y. The mounting frame 322 is inserted into the notch 221 along the third direction Z, and a portion of the bus member 22 is clamped in the clamping groove 3225.

The second direction Y is also the thickness direction of the bus member 22, and the notch 221 penetrates both sides of the bus member 22 along the second direction Y, that is, the notch 221 penetrates both surfaces of the bus member 22 in the thickness direction thereof.

Illustratively, the notch 221 is disposed at one end of the confluence member 22 in the third direction Z, and in a plane perpendicular to the second direction Y, an orthographic projection of the notch 221 is in a "U" shape.

The mounting frame 322 is inserted into the notch 221 along the third direction Z, and a portion of the bus member 22 is clamped in the clamping groove 3225, that is, a portion of the mounting frame 322 is located in the notch 221 in the second direction Y, correspondingly, a portion of the area of the bus member 22 forming the notch 221 is clamped in the clamping groove 3225 of the mounting frame 322, that is, a portion of the wall surface of the notch 221 of the bus member 22 is located in the clamping groove 3225, and in the second direction Y, portions of the mounting frame 322 are located at two sides of the bus member 22 respectively.

In this embodiment, the notch 221 is disposed at one end of the bus member 22 in the third direction Z, and the notch 221 is a structure penetrating through two sides of the bus member 22 in the second direction Y, so that the mounting rack 322 can be inserted into the notch 221 of the bus member 22 in the third direction Z, and meanwhile, a part of the bus member 22 can be clamped in the clamping groove 3225 of the mounting rack 322, that is, a structure that the part of the bus member 22 is inserted into the clamping groove 3225 from one end of the clamping groove 3225 in the third direction Z can be realized, and the battery adopting such a structure can improve the firmness and stability of the mounting rack 322 of the temperature sampling assembly 32 assembled onto the bus member 22, and can also play a certain positioning and limiting role on the mounting rack 322 of the temperature sampling assembly 32 through the notch 221 of the bus member 22, thereby being beneficial to improving the assembly quality of the mounting rack 322 of the temperature sampling assembly 32 and the bus member 22.

In some embodiments, referring to fig. 5, 7, 8 and 10, the mounting bracket 322 is provided with a catching groove 3225 on both surfaces in the first direction X.

Wherein, the mounting frame 322 is provided with clamping grooves 3225 on the surfaces of two sides in the first direction X, so that the mounting frame 322 is formed with fitting portions 3221 on two sides in the first direction X, and two opposite wall surfaces of the notch 221 of the bus member 22 in the first direction X can be respectively clamped in the two clamping grooves 3225.

In this embodiment, through all set up draw-in groove 3225 on the surface of the both sides along first direction X at mounting bracket 322 for mounting bracket 322 all is formed with assembly portion 3221 in the both sides along first direction X, makes the conflux part 22 in the draw-in groove 3225 of mounting bracket 322 both sides respectively along first direction X relative both sides in breach 221 department, thereby can further promote the firm nature and the stability of mounting bracket 322 assembly to conflux part 22 of temperature sampling subassembly 32, be favorable to further promoting the assembly quality of mounting bracket 322 and conflux part 22 of temperature sampling subassembly 32.

In some embodiments, as shown in fig. 5, 7, 8 and 10, the mounting bracket 322 is spaced apart from the bus member 22 along the third direction Z. That is, one end of the mounting bracket 322 inserted into the notch 221 of the confluence member 22 in the third direction Z is not in contact with the confluence member 22.

In this embodiment, by setting the mounting frame 322 and the bus member 22 to a structure in which the intervals are set in the third direction Z, the mounting frame 322 is not in contact with the bus member 22 in the third direction Z, so that the phenomenon that the temperature on the bus member 22 is directly transferred to the mounting frame 322 can be further alleviated while the assembly stability of the mounting frame 322 and the bus member 22 is improved, and the influence of the temperature on the bus member 22 on the temperature detecting member 321 can be further reduced.

Referring to fig. 7 and 8, and further to fig. 11, fig. 11 is an enlarged view of a portion of the mounting bracket 322 shown in fig. 7, according to some embodiments of the present application. The card groove 3225 has two groove side surfaces 3225a disposed opposite to each other in the second direction Y, and at least one groove side surface 3225a is provided with a pressing portion 3228. In the second direction Y, the pressing portion 3228 is located at one side of the confluence member 22, and the pressing portion 3228 presses against a portion of the confluence member 22 that is engaged in the engagement groove 3225.

The clamping groove 3225 further has a groove bottom surface 3225b, two sides of the groove bottom surface 3225b in the second direction Y are respectively connected to two groove side surfaces 3225a, and at least one groove side surface 3225a is convexly provided with a pressing portion 3228, that is, only one groove side surface 3225a of the clamping groove 3225 may be provided with the pressing portion 3228, or both groove side surfaces 3225a may be provided with the pressing portion 3228.

The pressing portion 3228 presses against a portion of the bus member 22 that is clamped in the clamping groove 3225, that is, a portion of the bus member 22 located in the clamping groove 3225 and the pressing portion 3228 press against each other in the second direction Y, so that a portion of the bus member 22 located in the clamping groove 3225 and the pressing portion 3228 are in an interference fit structure in the second direction Y.

In this embodiment, the pressing portion 3228 is protruded on at least one groove side face 3225a of the clamping groove 3225, and the pressing portion 3228 presses against one side of the confluence component 22 in the second direction Y, so that a portion of the confluence component 22 clamped in the clamping groove 3225 and the pressing portion 3228 are in an interference fit structure, and further the firmness of the confluence component 22 clamped in the clamping groove 3225 of the mounting frame 322 can be further improved, so that the assembly stability between the assembly portion 3221 of the mounting frame 322 and the confluence component 22 is further improved, and the stability of the mounting frame 322 of the temperature sampling assembly 32 assembled on the confluence component 22 is further improved.

In some embodiments, referring to fig. 7 and 8, both groove sides 3225a are convexly provided with an abutment 3228. Correspondingly, the pressing portions 3228 protruding from the two groove side surfaces 3225a respectively press against both sides of the portion of the confluence member 22 engaged in the engagement groove 3225 in the second direction Y.

Alternatively, there may be one or more pressing portions 3228 provided on each groove side face 3225a, for example, in fig. 7, two pressing portions 3228 are protruding from each groove side face 3225a, the two pressing portions 3228 are arranged at intervals along the third direction Z, and the pressing portions 3228 protruding from the two groove side faces 3225a are all structures that are provided in a one-to-one correspondence in the second direction Y, however, in other embodiments, the number of pressing portions 3228 protruding from each groove side face 3225a may be three, four, five, six, or the like.

In the present embodiment, by disposing the pressing portions 3228 on the two groove side surfaces 3225a of the clamping groove 3225, both sides of the portion of the bus component 22 clamped in the clamping groove 3225 in the second direction Y can be pressed against the pressing portions 3228, which is favorable for further improving the firmness of the bus component 22 clamped in the clamping groove 3225 of the mounting frame 322, so as to further improve the assembly stability and firmness between the assembly portion 3221 of the mounting frame 322 and the bus component 22.

According to some embodiments of the application, referring to fig. 8 and 9, the card slot 3225 further has a slot bottom 3225b, the slot bottom 3225b connects the two slot sides 3225a, the slot bottom 3225b is convexly provided with a support portion 3229, the support portion 3229 is located in the notch 221, and the support portion 3229 is configured to separate the converging component 22 from the slot bottom 3225b along the first direction X.

The supporting portion 3229 protruding on the bottom surface 3225b of the clamping groove 3225 plays a role of abutting against a portion of the converging component 22 clamped in the clamping groove 3225 in the first direction X, so that a portion of the converging component 22 clamped in the clamping groove 3225 and the bottom surface 3225b of the clamping groove 3225 are arranged at intervals in the first direction X.

In this embodiment, the supporting portion 3229 is protruding on the bottom surface 3225b of the clamping groove 3225, and the supporting portion 3229 is located in the notch 221 of the converging component 22, so that the supporting portion 3229 can be supported between the portion of the converging component 22 clamped in the clamping groove 3225 and the bottom surface 3225b of the clamping groove 3225, and therefore the structure that the portion of the converging component 22 clamped in the clamping groove 3225 is mutually spaced from the bottom surface 3225b of the clamping groove 3225 can be achieved, the temperature of the converging component 22 transmitted to the mounting frame 322 can be reduced, the influence of the temperature on the converging component 22 on the temperature detecting component 321 can be further reduced, and the accuracy and precision of the temperature of the battery cell 21 detected by the temperature detecting component 321 can be improved.

According to some embodiments of the present application, referring to fig. 11, the pressing portion 3228 has a pressing surface 3228a pressed against the bus member 22 in the second direction Y, the pressing portion 3228 further has two guide inclined surfaces 3228b, the two guide inclined surfaces 3228b are located on both sides of the pressing surface 3228a in the third direction Z, respectively, and the guide inclined surfaces 3228b connect the pressing surface 3228a and the groove side surface 3225a.

The pressing surface 3228a of the pressing portion 3228 is a surface of a side of the pressing portion 3228 facing away from the corresponding groove side surface 3225a in the second direction Y, and the pressing surface 3228a of the pressing portion 3228 is a surface of the pressing portion 3228 pressing against the bus member 22 in the second direction Y.

The two guiding inclined surfaces 3228b are respectively located at two sides of the pressing surface 3228a in the third direction Z, and the guiding inclined surfaces 3228b are connected to the pressing surface 3228a and the groove side surface 3225a, that is, one guiding inclined surface 3228b, the pressing surface 3228a and the other guiding inclined surface 3228b are sequentially arranged and connected along the third direction Z, and one end of the guiding inclined surface 3228b, which is far away from the pressing surface 3228a in the third direction Z, is connected to the corresponding groove side surface 3225 a.

In this embodiment, the pressing portion 3228 has a pressing surface 3228a that presses against the bus member 22 in the second direction Y, and the pressing portion 3228 is further provided with guide inclined surfaces 3228b that are respectively located at two sides of the pressing surface 3228a in the third direction Z, so that the guide inclined surfaces 3228b can connect the pressing surface 3228a and the groove side surface 3225a of the clamping groove 3225, so that a certain guiding effect can be performed on the bus member 22 through the guide inclined surfaces 3228b in the process that the bus member 22 is inserted into the clamping groove 3225 along the third direction Z, so that the guide inclined surfaces 3228b guide the bus member 22 to a position where the pressing surface 3228a presses against each other, and further, a phenomenon that the pressing portion 3228 and the bus member 22 are blocked mutually can be relieved, which is beneficial to reducing the difficulty in mutually pressing the pressing portion 3228 and the bus member 22, so as to reduce the difficulty in assembling between the bus member 22 and the assembling portion 3221 of the mounting frame 322.

According to some embodiments of the present application, referring to fig. 6 and 7, the temperature sampling assembly 32 may further include a sealant 323, the sealant 323 is filled in the mounting cavity 3223, and the sealant 323 covers the temperature sensing member 321.

Wherein, the sealant 323 is filled in the mounting cavity 3223, and the sealant 323 coats the temperature detecting member 321, that is, the mounting cavity 3223 is filled with the sealant 323, and the temperature detecting member 321 arranged in the mounting cavity 3223 is embedded in the sealant 323, so that the sealant 323 coats the outer side of the temperature detecting member 321.

Illustratively, the material of the sealant 323 may be various, such as epoxy resin, natural resin, and the like.

In this embodiment, still fill in the installation cavity 3223 of mounting bracket 322 and seal up gluey 323, and temperature detection spare 321 is sealed by the encapsulation 323 cladding, on the one hand can promote temperature detection spare 321 and install stability and reliability in installation cavity 3223, and can further stabilize temperature detection spare 321, in order to alleviate temperature detection spare 321 appearance in installation cavity 3223 and rock or bump etc. phenomenon, on the other hand can also realize sealing up temperature detection spare 321, in order to reduce temperature detection spare 321 and damage phenomenon such as back in the wet, thereby be favorable to promoting temperature detection spare 321's life.

According to some embodiments of the present application, as shown in connection with fig. 5 and 6, the temperature sampling assembly 32 may further include a connection line 324, one end of the connection line 324 extending into the installation cavity 3223 and being connected to the temperature sensing element 321, and the other end being located outside the installation cavity 3223 and being used for electrical connection with the battery management system.

Wherein the connection wire 324 serves to electrically connect the temperature detecting member 321 and the wire harness assembly 31, and the wire harness assembly 31 is used to electrically connect with the battery management system to realize the electrical connection of the temperature detecting member 321 with the battery management system. In the embodiment of the present application, the number of the connection lines 324 is two, the polarities of the two connection lines 324 are opposite, and the two connection lines 324 are respectively connected with the positive electrode and the negative electrode of the temperature detecting element 321.

One end of the connection line 324 extends into the installation cavity 3223 and is connected with the temperature detecting member 321, and the other end is located outside the installation cavity 3223, that is, the connection line 324 is a structure that is partially located outside the installation frame 322 and one end of the connection line 324 extends into the installation cavity 3223 of the installation frame 322, so that the connection line 324 can be connected with the temperature detecting member 321.

Optionally, the connection wire 324 includes a conductor and an insulating housing 212 coated on the outer side of the conductor, the connection wire 324 is connected with the temperature detecting member 321 such that the conductor of the connection wire 324 is connected with the temperature detecting member 321, and the insulating housings 212 of the two connection wires 324 are connected with each other to form a weak connection structure, illustratively, the conductor of the connection wire 324 is welded with the temperature detecting member 321 to form a solder mark, and in the embodiment in which the mounting cavity 3223 is filled with the sealant 323, the sealant 323 is coated on the outer side of the solder mark formed by the welded connection of the conductor of the connection wire 324 and the temperature detecting member 321.

It should be noted that, in other embodiments, the temperature sampling assembly 32 may not be provided with the connection wire 324, that is, the temperature detecting member 321 of the temperature sampling assembly 32 is directly connected to the wire harness assembly 31.

In this embodiment, the temperature sampling assembly 32 is further provided with a connecting wire 324, and one end of the connecting wire 324 extends into the installation cavity 3223 and is connected with the temperature detecting member 321, and the other end of the connecting wire is located outside the installation cavity 3223 and is used for being electrically connected with the battery management system, so as to reduce the difficulty of mutual electrical connection between the temperature detecting member 321 and the battery management system, and the connecting wire 324 and the temperature detecting member 321 can be assembled with each other and then electrically connected with the battery management system through the connecting wire 324 in the battery, which is beneficial to optimizing the production beat of the battery, so as to improve the production efficiency of the battery.

According to some embodiments of the present application, there is also provided an electric device including the battery device 100 of any one of the above aspects, and the battery device 100 is used to supply electric power to the electric device.

The power utilization device may be any of the devices or systems described above that employ the battery device 100.

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

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery device, characterized by comprising:

A plurality of battery cells;

a confluence member electrically connecting a plurality of the battery cells, and

The temperature sampling assembly comprises a temperature detection piece and a mounting frame, wherein the temperature detection piece is configured to detect the temperature of the battery cell, the mounting frame is provided with an assembling part, the assembling part is assembled and connected with the converging part, an installation cavity with an opening is formed in the mounting frame, the installation cavity and the assembling part are arranged at intervals along a first direction, the installation cavity and the converging part are arranged at intervals, and the temperature detection piece is accommodated in the installation cavity;

And the mounting frame is also provided with a separation groove, and the separation groove is positioned between the mounting cavity and the assembly part in the first direction.

2. The battery device according to claim 1, wherein the mount is provided with the fitting portion on at least one side in the first direction;

Wherein the mounting frame has opposite first and second surfaces in a second direction, at least one of the first and second surfaces being provided with the separation groove, the second direction being perpendicular to the first direction.

3. The battery device of claim 2, wherein the separation groove extends through the first surface and the second surface in the second direction.

4. The battery device according to claim 2, wherein the mount has the fitting portions on both sides in the first direction, the mount cavity being located between the two fitting portions in the first direction;

The mounting frame is provided with two separation grooves, and the separation grooves are arranged between the two assembly parts and the mounting cavity along the first direction.

5. The battery device of claim 2, wherein in the second direction, the first surface is disposed facing the battery cell;

wherein, the first surface is in direct or indirect butt against the battery cell in the second direction corresponding to the area of the installation cavity.

6. The battery device of claim 5, wherein, in the second direction, a region of the first surface corresponding to the mounting cavity is provided with a thermal pad, the thermal pad abutting the battery cell.

7. The battery device according to claim 5, wherein the battery cell includes a case, an electrode assembly and an electrode terminal, the electrode assembly is accommodated in the case, the electrode terminal is provided on the case, the electrode terminal is electrically connected with the electrode assembly, and the electrode terminal is connected with the bus member;

Wherein the area of the first surface corresponding to the mounting cavity in the second direction is directly or indirectly abutted against the shell.

8. The battery device according to claim 2, wherein the mounting cavity is formed with the opening at least one end of the mounting bracket in a third direction, the third direction being perpendicular to the first direction and the second direction.

9. The battery device according to claim 8, wherein the mounting cavity penetrates both ends of the mount in the third direction to form the opening at both ends of the mount in the third direction.

10. The battery device according to any one of claims 1 to 9, wherein a clamping groove is provided on the mounting bracket, the clamping groove being in clamping engagement with the bus member, the clamping groove being the fitting portion.

11. The battery device according to claim 10, wherein the mount is provided with the card slot on a surface of at least one side in the first direction;

The separation groove is formed in the surface of one side of the mounting frame in the second direction, the clamping groove penetrates through the two ends of the mounting frame in the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

12. The battery device according to claim 11, wherein one end of the bus member in the third direction is provided with a notch that penetrates both sides of the bus member in the second direction;

The mounting frame is inserted into the notch along the third direction, and part of the converging component is clamped in the clamping groove.

13. The battery device according to claim 12, wherein the mount is provided with the card grooves on surfaces of both sides in the first direction.

14. The battery device of claim 13, wherein the mounting bracket is spaced apart from the bus member in the third direction.

15. The battery device according to claim 12, wherein the card slot has two slot side surfaces arranged opposite to each other in the second direction, at least one of the slot side surfaces being provided with a pressing portion;

and the abutting part is positioned at one side of the converging part along the second direction and abuts against the part of the converging part clamped in the clamping groove.

16. The battery device according to claim 15, wherein both of the groove side surfaces are provided with the pressing portions in a convex manner.

17. The battery device of claim 15, wherein the card slot further has a slot bottom surface connecting the two slot sides, the slot bottom surface being convexly provided with a support portion located within the notch, the support portion configured to separate the bus member from the slot bottom surface along the first direction.

18. The battery device according to claim 15, wherein the pressing portion has a pressing surface that presses against the bus member in the second direction;

The pressing part is further provided with two guide inclined planes, the two guide inclined planes are respectively positioned at two sides of the pressing surface in the third direction, and the guide inclined planes are connected with the pressing surface and the side surface of the groove.

19. The battery device of claim 1, wherein the temperature sampling assembly further comprises:

And the sealant is filled in the mounting cavity and coats the temperature detection part.

20. The battery device of claim 1, wherein the temperature sampling assembly further comprises:

And one end of the connecting wire extends into the mounting cavity and is connected with the temperature detection piece, and the other end of the connecting wire is positioned outside the mounting cavity and is used for being electrically connected with the battery management system.

21. An electrical device comprising a battery device according to any one of claims 1-20 for providing electrical energy.