Battery device and electric device

Abstract

The utility model provides a battery device and a power utilization device, and belongs to the technical field of batteries. The battery device comprises a plurality of single batteries, a confluence component and a temperature sampling assembly. The bus member is electrically connected to the plurality of battery cells. The temperature sampling assembly comprises a temperature detection part and a mounting frame, the mounting frame is provided with an assembling part, the assembling part is assembled and connected with the confluence component, a mounting cavity with an opening is formed in the mounting frame, the mounting cavity and the confluence component are arranged at intervals, the mounting cavity and the assembling part are arranged at intervals in the first direction, and the temperature detection part is contained in the mounting cavity. The installation frame is further provided with a separation groove, and the separation groove is located between the installation cavity and the assembly part in the first direction. The separation groove can play a certain role in blocking the temperature on the confluence component in the process of transmitting the temperature to the mounting cavity through the assembly part, so that the phenomenon that the temperature on the confluence component is transmitted to the mounting cavity is relieved, and the influence of the temperature on the temperature detection piece by the temperature on the confluence component is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and an electrical device. Background Art

[0002] In recent years, new energy vehicles have developed by leaps and bounds. In the field of electric vehicles, power batteries, as the power source of electric vehicles, play an irreplaceable and important role. With the vigorous promotion of new energy vehicles, the demand for power battery products is also growing. Among them, battery devices, as core components of new energy vehicles, have high requirements in terms of stability and reliability.

[0003] In battery technology, in order to ensure the safety of battery cells, a temperature sampling component is generally provided in a battery device. The temperature sampling component can collect and monitor the temperature of the battery cells during use, so as to obtain the usage status of the battery device. However, the temperature sampling component in the existing battery device is prone to inaccurate temperature collection during use, thereby failing to effectively obtain the usage status of the battery cells inside the battery device, which is not conducive to improving the stability and reliability of the battery device. Utility Model Content

[0004] The embodiments of the present application provide a battery device and an electrical device, which can effectively improve the use stability and reliability of the battery device.

[0005] In a first aspect, an embodiment of the present application provides a battery device, comprising a plurality of battery cells, a busbar component and a temperature sampling assembly; the busbar component is electrically connected to the plurality of battery cells; the temperature sampling assembly comprises a temperature detection member and a mounting frame, the temperature detection member is configured to detect the temperature of the battery cells, the mounting frame has an assembly portion, the assembly portion is assembled and connected to the busbar component, and a mounting cavity with an opening is formed inside the mounting frame, the mounting cavity and the assembly portion are arranged at intervals along a first direction, and the mounting cavity and the busbar component are arranged at intervals, and the temperature detection member is accommodated in the mounting cavity; wherein a partition groove is also provided on the mounting frame, and the partition groove is located between the mounting cavity and the assembly portion in the first direction.

[0006] In the above technical solution, a temperature sampling assembly is installed on the busbar of the battery device, and the temperature sampling assembly is provided with a mounting frame and a temperature detection member. The mounting frame has an assembly portion that is assembled and connected to the busbar, and an installation cavity is formed inside the mounting frame. The installation cavity is spaced apart from the busbar. By assembling and connecting the assembly portion of the mounting frame to the busbar, and arranging the temperature detection member in the installation cavity of the mounting frame, the temperature detection member is installed on the busbar, so that the temperature detection member of the temperature sampling assembly can detect the temperature of the battery cell to obtain the temperature information of the battery cell during use, wherein the assembly portion and the installation cavity are arranged in a spaced relationship along the first direction. A structure is provided, and a partition groove is arranged on the mounting frame, the partition groove is located between the mounting cavity and the assembly part of the mounting frame in the first direction, so that in the process that the temperature on the confluence component is transferred to the mounting cavity through the assembly part, the partition groove can play a certain blocking and separating role in the transfer of temperature, so as to alleviate the phenomenon that the temperature on the confluence component is transferred to the mounting cavity, thereby reducing the influence of the temperature on the confluence component on the temperature detection component, which is beneficial to improving the precision and accuracy of the temperature detection component in detecting the temperature of the battery cell, and then enabling the temperature sampling component to more effectively obtain the use status of the battery cell inside the battery device, so as to improve the use stability and reliability of the battery device.

[0007] In some embodiments, the mounting frame is provided with the assembly portion on at least one side in the first direction; wherein, the mounting frame has a first surface and a second surface relative to each other in the second direction, at least one of the first surface and the second surface is provided with the separation groove, and the second direction is perpendicular to the first direction.

[0008] In the above technical solution, by arranging an assembly portion on one side of the mounting frame along the first direction, and arranging a partition groove on at least one of the first surface and the second surface opposite to each other in the second direction perpendicular to the first direction of the mounting frame, it is convenient to arrange the partition groove in the first direction to be located between the mounting cavity and the assembly portion, which is beneficial to reducing the difficulty of arranging the partition groove on the mounting frame, and can improve the difficulty of separating the mounting cavity and the assembly portion by the partition groove, and is beneficial to improving the effect of the partition groove in blocking the temperature on the convergence component from being transferred to the mounting cavity through the assembly portion, so as to alleviate the phenomenon of the temperature on the convergence component being transferred to the mounting cavity, and further can reduce the influence of the temperature on the convergence component on the temperature detection component.

[0009] In some embodiments, along the second direction, the separation groove penetrates the first surface and the second surface.

[0010] In the above technical solution, by setting the dividing groove as a structure that passes through the first surface and the second surface in the second direction, the dividing groove is a through groove structure that passes through both sides of the mounting frame along the second direction, thereby being able to further enhance the effect of the dividing groove in blocking the temperature on the convergence component from being transferred to the mounting cavity through the assembly portion, so as to further alleviate the phenomenon of the temperature on the convergence component being transferred to the mounting cavity, thereby being able to further reduce the influence of the temperature on the convergence component on the temperature detection component, which is beneficial to further enhance the precision and accuracy of the temperature detection component in detecting the temperature of the battery cell.

[0011] In some embodiments, the mounting frame has the assembly parts on both sides in the first direction, and the mounting cavity is located between the two assembly parts in the first direction; wherein, two separation grooves are provided on the mounting frame, and along the first direction, the separation grooves are provided between the two assembly parts and the mounting cavity.

[0012] In the above technical solution, assembly parts are provided on both sides of the mounting frame along the first direction, and a partition groove is provided between each assembly part and the mounting cavity, so that the temperature transfer from the busbar component to the mounting cavity can be alleviated while the mounting frame can be assembled and connected with the busbar component on both sides in the first direction, which is beneficial to further improve the stability and reliability of the mounting frame installed on the busbar component.

[0013] In some embodiments, along the second direction, the first surface is disposed facing the battery cell; wherein the first surface directly or indirectly abuts against the battery cell in an area corresponding to the mounting cavity in the second direction.

[0014] In the above technical solution, the area of ​​the first surface of the mounting frame corresponding to the mounting cavity in the second direction is set to a structure that directly or indirectly abuts against the battery cell so that the temperature on the battery cell can be transferred to the mounting cavity of the mounting frame, which is beneficial to improve the precision and accuracy of the temperature detection component in detecting the temperature of the battery cell.

[0015] In some embodiments, along the second direction, a thermal pad is disposed on the first surface in an area corresponding to the mounting cavity, and the thermal pad abuts against the battery cell.

[0016] In the above technical solution, a thermal pad is arranged on the area of ​​the first surface of the mounting frame corresponding to the mounting cavity in the second direction, and the thermal pad abuts against the battery cell, so that the area of ​​the first surface of the mounting frame corresponding to the mounting cavity in the second direction is a structure that indirectly contacts the battery cell through the thermal pad, so that the temperature of the battery cell can be better transferred to the mounting cavity of the mounting frame through the thermal pad, thereby further improving the precision and accuracy of the temperature detection component in detecting the temperature of the battery cell.

[0017] In some embodiments, the battery cell includes a shell, an electrode assembly and an electrode terminal, the electrode assembly is accommodated in the shell, the electrode terminal is arranged on the shell, the electrode terminal is electrically connected to the electrode assembly, and the electrode terminal is connected to the busbar component; wherein the first surface directly or indirectly abuts against the shell in an area corresponding to the mounting cavity in the second direction.

[0018] In the above technical solution, the battery cell is provided with an outer shell, an electrode assembly accommodated in the outer shell, and an electrode terminal arranged on the outer shell. By directly or indirectly abutting the first surface of the mounting frame in the second direction corresponding to the mounting cavity in the outer shell of the battery cell, the difficulty of abutting and assembling the first surface of the mounting frame and the battery cell is reduced, and the temperature of the battery cell can be better transferred to the mounting cavity of the mounting frame, so that the temperature detection component can detect the temperature of the battery cell, which is conducive to further improving the precision and accuracy of the temperature detection component in detecting the temperature of the battery cell.

[0019] In some embodiments, the mounting cavity is formed with the opening at at least one end of the mounting bracket along a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0020] In the above technical solution, by forming the opening of the mounting cavity on one side of the mounting frame in the third direction, the areas where the mounting frame is provided with the opening, the assembly portion and the separation groove are respectively located on one side of the mounting frame in different directions. On the one hand, the interference effect when the opening, the assembly portion and the separation groove are provided on the mounting frame can be reduced, which is beneficial to reducing the difficulty of manufacturing the mounting frame. On the other hand, the interference effect between the opening on the mounting frame for assembling the temperature detection component and the assembly portion can be reduced, thereby facilitating the assembly of the temperature detection component into the mounting cavity of the mounting frame and facilitating the assembly of the mounting frame on the conduit component.

[0021] In some embodiments, the mounting cavity passes through both ends of the mounting frame along the third direction, so that the openings are formed at both ends of the mounting frame in the third direction.

[0022] In the above technical solution, by setting the installation cavity as a structure that passes through both ends of the installation frame along the third direction, the installation cavity can form openings at both ends of the installation frame along the third direction. This makes it easy to form the installation cavity inside the installation frame, which helps to reduce the manufacturing difficulty of the installation cavity of the installation frame. On the other hand, it makes it easy to assemble the temperature detection component into the installation cavity of the installation frame, which helps to further reduce the assembly difficulty between the temperature detection component and the installation frame.

[0023] In some embodiments, a card slot is provided on the mounting frame, and the card slot is engaged with the converging component, and the card slot is the assembly portion.

[0024] In the above technical solution, the assembly part of the mounting frame is set as a slot structure on the mounting frame, and the slot is engaged with the confluence component to assemble and connect the assembly part of the mounting frame and the confluence component to each other, which has a simple structure and is easy to assemble.

[0025] In some embodiments, the mounting frame is provided with the card slot on the surface of at least one side in the first direction; wherein the dividing groove is provided on the surface of one side of the mounting frame in the second direction, and the card slot passes through both ends of the mounting frame along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0026] In the above technical solution, the card slot is arranged on the surface of one side of the mounting frame in the first direction, the card slot passes through both sides of the mounting frame along the third direction, and the separation slot is arranged on the surface of one side of the mounting frame in the second direction, thereby reducing the interference between the card slot and the separation slot while further reducing the difficulty of forming the card slot as an assembly part, so as to reduce the difficulty of manufacturing the mounting frame. On the other hand, it can further reduce the difficulty of partially locking the convergence component in the card slot, so as to reduce the difficulty of assembling between the convergence component and the assembly part, thereby effectively improving the production efficiency of the battery.

[0027] In some embodiments, the bus component is provided with a notch at one end in the third direction, and the notch passes through both sides of the bus component along the second direction; wherein the mounting frame is inserted into the notch along the third direction, and a portion of the bus component is stuck in the slot.

[0028] In the above technical solution, a notch is provided at one end of the busbar component in the third direction, and the notch is a structure that penetrates both sides of the busbar component in the second direction, so that when the mounting frame is inserted into the notch of the busbar component along the third direction, part of the busbar component can also be stuck in the slot of the mounting frame, that is, it can be realized that part of the busbar component is a structure that is inserted into the slot from one end of the slot in the third direction. A battery adopting such a structure can improve the reliability and stability of the mounting frame of the temperature sampling component assembled to the busbar component, and the notch of the busbar component can also play a certain positioning and limiting role on the mounting frame of the temperature sampling component, which is beneficial to improving the assembly quality of the mounting frame of the temperature sampling component and the busbar component.

[0029] In some embodiments, the card slots are provided on surfaces of both sides of the mounting frame in the first direction.

[0030] In the above technical solution, by arranging card grooves on the surfaces of both sides of the mounting frame along the first direction, assembly parts are formed on both sides of the mounting frame in the first direction, so that the opposite sides of the confluence component at the notch along the first direction can be respectively clamped in the card grooves on both sides of the mounting frame, thereby further improving the reliability and stability of the mounting frame of the temperature sampling component assembled to the confluence component, which is conducive to further improving the assembly quality of the mounting frame of the temperature sampling component and the confluence component.

[0031] In some embodiments, along the third direction, the mounting frame and the busbar component are spaced apart.

[0032] In the above technical solution, the mounting frame and the busbar component are arranged as a spaced-apart structure in the third direction so that the mounting frame does not contact the busbar component in the third direction. This improves the assembly stability of the mounting frame and the busbar component and further alleviates the phenomenon that the temperature on the busbar component is directly transferred to the mounting frame. This further reduces the influence of the temperature on the busbar component on the temperature detection component.

[0033] In some embodiments, the slot has two slot side surfaces that are oppositely arranged in the second direction, and at least one of the slot side surfaces is provided with a protruding pressing portion; wherein, along the second direction, the pressing portion is located on one side of the convergence component, and the pressing portion presses against the portion of the convergence component that is stuck in the slot.

[0034] In the above technical solution, a pressing portion is protruded on at least one groove side surface of the slot, and the pressing portion presses against one side of the convergence component in the second direction along the second direction, so that the part of the convergence component stuck in the slot and the pressing portion can be interference fit, thereby further improving the firmness of the convergence component stuck in the slot of the mounting frame, so as to further improve the assembly stability between the assembly portion of the mounting frame and the convergence component, which is beneficial to further improve the stability of the mounting frame of the temperature sampling assembly assembled on the convergence component.

[0035] In some embodiments, the pressing portion is protrudingly provided on two side surfaces of the groove.

[0036] In the above technical solution, by arranging pressing parts on both sides of the slot, the part of the collector component stuck in the slot can be pressed against the pressing parts on both sides in the second direction, which is beneficial to further improve the firmness of the collector component stuck in the slot of the mounting frame, so as to further improve the assembly stability and reliability between the assembly part of the mounting frame and the collector component.

[0037] In some embodiments, the slot also has a slot bottom surface, the slot bottom surface connects the two slot side surfaces, the slot bottom surface is protruding with a support portion, the support portion is located in the notch, and the support portion is configured to separate the collector component and the slot bottom surface along the first direction.

[0038] In the above technical solution, a supporting portion is protruded from the bottom surface of the slot, and the supporting portion is located in the notch of the convergence component, so that the supporting portion can be supported between the portion of the convergence component stuck in the slot and the bottom surface of the slot, thereby realizing a structure in which the portion of the convergence component stuck in the slot and the bottom surface of the slot are spaced apart from each other, so as to reduce the temperature transmitted from the convergence component to the mounting frame, and further reduce the influence of the temperature on the convergence component on the temperature detection component, which is beneficial to improving the precision and accuracy of the temperature detection component in detecting the temperature of the battery cell.

[0039] In some embodiments, the pressing portion has a pressing surface that presses against the conduit component in the second direction; wherein the pressing portion also has two guiding slopes, which are respectively located on both sides of the pressing surface in the third direction, and the guiding slopes connect the pressing surface and the groove side surface.

[0040] In the above technical solution, the pressing portion has a pressing surface that presses against the convergence component in the second direction, and the pressing portion is also provided with guiding inclined surfaces that are respectively located on both sides of the pressing surface in the third direction, so that the guiding inclined surfaces can connect the pressing surface and the side surfaces of the slot, so that in the process of the convergence component being inserted into the slot along the third direction, the guiding inclined surfaces can play a certain guiding role on the convergence component, so that the guiding inclined surfaces can guide the convergence component to the position where the pressing surface presses against the guiding surface, thereby alleviating the phenomenon that the pressing portion and the convergence component are stuck to each other, which is beneficial to reducing the difficulty of the pressing portion and the convergence component pressing against each other, so as to reduce the difficulty of assembly between the convergence component and the assembly part of the mounting frame.

[0041] In some embodiments, the temperature sampling assembly further includes a sealant; the sealant is filled in the installation cavity, and the sealant covers the temperature detection component.

[0042] In the above technical solution, the mounting cavity of the mounting frame is also filled with sealant, and the temperature detection element is covered with the sealant. On the one hand, the stability and reliability of the temperature detection element installed in the mounting cavity can be improved, and the temperature detection element can be further stabilized to alleviate the phenomenon of shaking or bumping of the temperature detection element in the mounting cavity. On the other hand, the temperature detection element can also be sealed to reduce the damage of the temperature detection element after being affected by moisture, which is beneficial to improve the service life of the temperature detection element.

[0043] In some embodiments, the temperature sampling assembly further includes a connecting wire; one end of the connecting wire extends into the installation cavity and is connected to the temperature detection component, and the other end is located outside the installation cavity and is used to be electrically connected to the battery management system.

[0044] In the above technical solution, the temperature sampling component is also provided with a connecting wire, and one end of the connecting wire extends into the installation cavity and is connected to the temperature detection component, and the other end is located outside the installation cavity and is used to be electrically connected to the battery management system, so as to reduce the difficulty of electrical connection between the temperature detection component and the battery management system, and the connecting wire and the temperature detection component can be assembled with each other first and then assembled into the battery to be electrically connected to the battery management system through the connecting wire, which is conducive to optimizing the production rhythm of the battery to improve the production efficiency of the battery.

[0045] In a second aspect, an embodiment of the present application further provides an electrical device, comprising the above-mentioned battery device, wherein the battery device is used to provide electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0048] Figure 2 An exploded view of the structure of a battery device provided in some embodiments of the present application;

[0049] Figure 3 A schematic diagram of the assembly of a battery cell assembly and a sampling assembly provided in some embodiments of the present application;

[0050] Figure 4 A schematic diagram of assembling a battery cell and a busbar component provided in some embodiments of the present application;

[0051] Figure 5 A schematic diagram of a partial structure of a battery device provided in some embodiments of the present application;

[0052] Figure 6 An exploded view of the structure of a temperature sampling assembly provided in some embodiments of the present application;

[0053] Figure 7 A schematic diagram of the structure of a mounting frame of a temperature sampling assembly provided in some embodiments of the present application;

[0054] Figure 8A front view of a mounting frame of a temperature sampling assembly provided in some embodiments of the present application in a third direction;

[0055] Fig. 9 A cross-sectional view of a mounting frame of a temperature sampling assembly provided in some embodiments of the present application, perpendicular to a third direction;

[0056] Fig.10 A schematic diagram of the structure of a confluence component provided in some embodiments of the present application;

[0057] Fig.11 for Figure 7 A partial enlarged view of point A of the mounting frame shown.

[0058] Icon: 1000-vehicle; 100-battery device; 10-box; 11-first box body; 12-second box body; 20-battery cell assembly; 21-battery cell; 211-electrode terminal; 212-housing; 22-converging component; 221-notch; 30-sampling assembly; 31-wiring harness assembly; 32-temperature sampling assembly; 321-temperature detection member; 322-mounting frame; 3221-assembly portion; 3222-opening; 3223- Mounting cavity; 3224-partitioning groove; 3225-card slot; 3225a-groove side; 3225b-groove bottom; 3226-first surface; 3227-second surface; 3228-pressing portion; 3228a-pressing surface; 3228b-guiding slope; 3229-supporting portion; 323-sealant; 324-connecting wire; 40-insulating member; 200-controller; 300-motor; X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0061] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0062] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0064] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0065] The term “plurality” used in this application refers to two or more (including two).

[0066] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0067] The battery cell can be a lithium ion battery, a sodium 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 in the embodiments of the present application.

[0068] A 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 process of the battery cell, active ions (such as lithium ions) are embedded and removed between the positive electrode and the negative electrode. The separator is set between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, while allowing active ions to pass through.

[0069] In some embodiments, the electrode assembly is a wound structure, wherein the positive electrode sheet and the negative electrode sheet are wound into the wound structure.

[0070] In some embodiments, the electrode assembly is a laminate structure.

[0071] In some embodiments, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0072] In some embodiments, the electrode assembly is provided with tabs, which can lead current out of the electrode assembly. The tabs include a positive tab and a negative tab.

[0073] In some embodiments, the battery cell may include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing may be a steel housing, an aluminum housing, a plastic housing (such as polypropylene), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film.

[0074] As an example, the battery cell may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. Prismatic battery cells include but are not limited to square-shell battery cells, blade-shaped battery cells, and polygonal prismatic batteries, such as hexagonal prismatic batteries.

[0075] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in mixed connection through a busbar component.

[0076] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells; as an example, a battery cell assembly may be a battery module, and a battery module is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, a battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0077] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the case.

[0078] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0079] As an example, the battery cell assembly may also be housed in the case by directly fixing a plurality of battery cells to the case.

[0080] As an example, the box body may include a first box body and a second box body. The first box body and the second box body are buckled together to form a closed space inside the box body to accommodate the battery cell assembly. The closed here means covered or closed, which can be sealed or unsealed. The first box body can be a top cover or a bottom plate.

[0081] As an example, the box body may include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body to accommodate the battery cell assembly.

[0082] As an example, the box body can be used as a part of the chassis structure of the vehicle. For example, the top cover of the box body can become at least a part of the floor of the vehicle, or the frame of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0083] In some embodiments, the battery device refers to an energy storage device, which includes a box body, at least one side of which is provided with a door. The energy storage device includes an energy storage container, an energy storage cabinet, and the like.

[0084] Battery devices have outstanding advantages such as high energy density, low environmental pollution, high power density, long service life, wide adaptability, and low self-discharge coefficient. They are an important part of the development of new energy today. The development of battery technology must consider many design factors at the same time, such as performance parameters such as energy density, cycle life, discharge capacity, and charge and discharge rate. In addition, the safety of battery devices must also be considered.

[0085] For general battery cells, the battery device includes a housing and a plurality of battery cells arranged in the housing. The plurality of battery cells are electrically connected through a busbar component to realize series or parallel connection between the plurality of battery cells. In the related art, in order to ensure the safety of the battery cells, a temperature sampling component is generally provided in the battery device. The temperature of the battery cells during use can be collected and monitored through the temperature sampling component so as to obtain the usage status of the battery device. The temperature sampling component usually includes a temperature sensor and a mounting frame for assembling the temperature sensor. The mounting frame is usually mounted on the busbar component of the battery device, and the mounting frame and the battery cells are in contact with each other, so that the temperature sensor accommodated in the mounting frame can detect the temperature of the battery cells. However, during the use of the battery device with this structure, the temperature on the busbar component will also be transmitted to the temperature sensor through the mounting frame, resulting in inaccurate results of the temperature sensor detecting the temperature of the battery cells, thereby failing to effectively obtain the usage status of the battery cells inside the battery device, which is not conducive to improving the stability and reliability of the battery device.

[0086] Based on the above considerations, in order to solve the problem of low stability and reliability in use of the battery device, an embodiment of the present application provides a battery device, which includes a plurality of battery cells, a busbar component and a temperature sampling assembly. The busbar component electrically connects the plurality of battery cells. The temperature sampling assembly includes a temperature detection member and a mounting frame, the temperature detection member is configured to detect the temperature of the battery cell, the mounting frame has an assembly portion, the assembly portion is assembled and connected to the busbar component, and a mounting cavity with an opening is formed inside the mounting frame, the mounting cavity and the assembly portion are arranged at intervals along a first direction, and the mounting cavity and the busbar component are arranged at intervals, and the temperature detection member is accommodated in the mounting cavity. A partition groove is also provided on the mounting frame, and the partition groove is located between the mounting cavity and the assembly portion in the first direction.

[0087] In a battery device of this structure, a temperature sampling assembly is installed on the busbar of the battery device, and the temperature sampling assembly is provided with a mounting frame and a temperature detection member. The mounting frame has an assembly portion assembled and connected with the busbar, and an installation cavity is formed inside the mounting frame, and the installation cavity is spaced apart from the busbar. By assembling and connecting the assembly portion of the mounting frame to the busbar, and arranging the temperature detection member in the installation cavity of the mounting frame, the temperature detection member is installed on the busbar, so that the temperature detection member of the temperature sampling assembly can detect the temperature of the battery cell to obtain the temperature information of the battery cell during use, wherein the assembly portion and the installation cavity are spaced apart along a first direction. structure, and a partition groove is arranged on the mounting frame, and the partition groove is located between the mounting cavity and the assembly part of the mounting frame in the first direction, so that in the process that the temperature on the busbar component is transferred to the mounting cavity through the assembly part, the partition groove can play a certain blocking and separating role in the transfer of temperature, so as to alleviate the phenomenon that the temperature on the busbar component is transferred to the mounting cavity, thereby reducing the influence of the temperature on the busbar component on the temperature detection part, which is conducive to improving the precision and accuracy of the temperature detection part in detecting the temperature of the battery cell, and then enabling the temperature sampling component to more effectively obtain the use status of the battery cell inside the battery device, so as to improve the use stability and reliability of the battery device.

[0088] The battery device disclosed in the embodiment of the present application can be used in, but not limited to, electrical devices such as vehicles, ships or aircraft. A power supply system of the electrical device can be composed of the battery device disclosed in the present application, which is helpful to alleviate the problem of inaccurate results of the temperature sampling component detecting the temperature of the battery cell, so as to improve the stability and reliability of the battery device.

[0089] The embodiment of the present application provides an electric device using a battery device as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0090] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0091] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom of the vehicle 1000, or at the head of the vehicle 1000, or at the tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source or a power source for the vehicle 1000, etc. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for the starting, navigation and working power requirements of the vehicle 1000 during driving.

[0092] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source or a usage power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0093] Please refer to Figure 2 and Figure 3 , Figure 2 This is an exploded view of the structure of the battery device 100 provided in some embodiments of the present application. Figure 3 Schematic diagram of the assembly of a battery cell assembly 20 and a sampling assembly 30 provided in some embodiments of the present application. The battery device 100 includes a housing 10 and at least one battery cell assembly 20, the battery cell assembly 20 is accommodated in the housing 10, and the battery cell assembly 20 includes a plurality of battery cells 21 stacked along a first direction X.

[0094] The box body 10 is used to provide an assembly space for the battery monomer assembly 20, and the box body 10 can adopt a variety of structures. In some embodiments, the box body 10 may include a first box body 11 and a second box body 12, the first box body 11 and the second box body 12 overlap each other along the second direction Y, and the first box body 11 and the second box body 12 jointly define an assembly space for accommodating the battery monomer assembly 20. The second box body 12 may be a hollow structure with one end open, and the first box body 11 may be a plate-like structure, and 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 also be hollow structures with one side open, and the open side of the first box body 11 covers the open side of the second box body 12.

[0095] Of course, the box body 10 formed by the first box body 11 and the second box body 12 can be in various shapes, such as a cylinder, a cuboid or a cube. Figure 2 In the embodiment, the box body 10 is in the shape of a rectangular parallelepiped.

[0096] Optionally, in the battery device 100, the battery cell assembly 20 accommodated in the box 10 may be one or more. When there are multiple battery cell assemblies 20 arranged in the box 10, the multiple battery cell assemblies 20 may be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cell assemblies 20 are both connected in series and in parallel. The multiple battery cell assemblies 20 may be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cell assemblies 20 is accommodated in the box 10.

[0097] For example, in combination Figure 2 and Figure 3 As shown, the battery device 100 includes two battery cell assemblies 20 , the two battery cell assemblies 20 are arranged along a third direction Z, and the two battery cell assemblies 20 are connected in series.

[0098] exist Figure 3 In the embodiment, each battery cell assembly 20 includes a busbar 22 and a plurality of battery cells 21 stacked along a first direction X. The busbar 22 is located on one side of the plurality of battery cells 21 in a second direction Y. The busbar 22 is used to connect the plurality of battery cells 21 to achieve electrical connection between the plurality of battery cells 21. Exemplarily, 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.

[0099] Among them, refer to Figure 3 , and please refer to Figure 4 , Figure 4 Schematic diagram of the assembly of battery cells 21 and busbar components 22 provided for some embodiments of the present application. Two electrode terminals 211 are provided at one end of the battery cell 21 in the second direction Y. The two electrode terminals 211 have opposite polarities and are used to coordinate the input or output of electrical energy of the battery cell 21. The busbar component 22 is interconnected with the electrode terminals 211 of the battery cell 21 to electrically connect multiple battery cells 21. It should be noted that the multiple battery cells 21 in the battery cell assembly 20 can be in a series or parallel structure. For example, in Figure 3 In the embodiment, a plurality of battery cells 21 in the battery cell assembly 20 are sequentially connected in series via a plurality of busbar components 22 .

[0100] Optionally, each battery cell 21 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 21 may be in a rectangular parallelepiped, a cylinder, a prism or other shapes. Figure 2 and Figure 3 In the figure, the battery cell 21 is a rectangular parallelepiped structure.

[0101] In some embodiments, see Figure 2 and Figure 3 As shown, the battery device 100 may further include a sampling assembly 30, which is disposed in the housing 10. The sampling assembly 30 is used to be electrically connected to a battery management system of the battery device 100. The sampling assembly 30 includes a wiring harness assembly 31 and a temperature sampling assembly 32. The temperature sampling assembly 32 is configured to detect the temperature of the battery cell 21. The wiring harness assembly 31 is used to be electrically connected to the battery management system. The temperature sampling assembly 32 is electrically connected to the wiring harness assembly 31 to achieve electrical connection of the temperature sampling assembly 32 to the battery management system via the wiring harness assembly 31.

[0102] 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 a sampling assembly 30 .

[0103] Exemplarily, the sampling assembly 30 is located at a side of the battery cell assembly 20 in the second direction Y where the busbar component 22 is disposed.

[0104] In some embodiments, see Figure 2 and Figure 3 As shown, the battery device 100 may further include an insulating member 40, which is disposed between the sampling assembly 30 and the plurality of battery cells 21 in the second direction Y to insulate and isolate the sampling assembly 30 and the battery cells 21, thereby facilitating reduction of the risk of overlap between the sampling assembly 30 and the battery cells 21, thereby alleviating the phenomenon of internal short circuit of the battery device 100 during use, and improving the reliability of the battery device 100.

[0105] The insulating member 40 serves to insulate and isolate the battery cell 21 and the sampling assembly 30 . The insulating member 40 may be made of various materials, for example, the insulating member 40 may be made of rubber, silicone or plastic.

[0106] Exemplarily, the busbar component 22 is arranged on the side of the insulating member 40 away from the battery cell 21, so that the busbar component 22 and the sampling assembly 30 are both located on the side of the insulating member 40 away from the battery cell 21 in the second direction Y. Correspondingly, a first avoidance hole (not shown in the figure) is provided on the insulating member 40, and the first avoidance hole passes through both sides of the insulating member 40 along the second direction Y. Each first avoidance hole is used for an electrode terminal 211 of a battery cell 21 to pass through, so as to facilitate the connection between the electrode terminal 211 and the busbar component 22.

[0107] According to some embodiments of the present application, referring to Figure 3 and Figure 4, and please refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 , Figure 5 A partial structural diagram of a battery device 100 provided in some embodiments of the present application is shown in FIG. Figure 6 The structure explosion diagram of the temperature sampling assembly 32 provided in some embodiments of the present application is as follows: Figure 7 This is a schematic diagram of the structure of the mounting frame 322 of the temperature sampling assembly 32 provided in some embodiments of the present application. Figure 8 A front view of a mounting bracket 322 of a temperature sampling assembly 32 provided in some embodiments of the present application in a third direction Z, Fig. 9 A cross-sectional view of a mounting frame 322 of a temperature sampling assembly 32 provided in some embodiments of the present application perpendicular to a third direction Z. The present application provides a battery device 100, which includes a plurality of battery cells 21, a busbar 22, and a temperature sampling assembly 32. The busbar 22 is electrically connected to the plurality of battery cells 21. The temperature sampling assembly 32 includes a temperature detection member 321 and a mounting frame 322, wherein the temperature detection member 321 is configured to detect the temperature of the battery cell 21, the mounting frame 322 has an assembly portion 3221, the assembly portion 3221 is assembled and connected to the busbar 22, and an installation cavity 3223 having an opening 3222 is formed inside the mounting frame 322, the installation cavity 3223 and the assembly portion 3221 are arranged at intervals along the first direction X, and the installation cavity 3223 is arranged at intervals from the busbar 22, and the temperature detection member 321 is accommodated in the installation cavity 3223. The mounting frame 322 is further provided with a separation groove 3224 . The separation groove 3224 is located between the mounting cavity 3223 and the assembly portion 3221 in the first direction X to separate the mounting cavity 3223 from the assembly portion 3221 .

[0108] The temperature sampling assembly 32 includes a temperature detection member 321 and a mounting frame 322. The temperature detection member 321 is used to detect the temperature of the battery cell 21. The temperature detection member 321 is electrically connected to the battery management system through the wiring harness assembly 31, so as to monitor and obtain the temperature information of the battery cell 21 during use. The temperature detection member 321 is mounted on the mounting frame 322, and the mounting frame 322 is mounted on the confluence component 22, so that the mounting frame 322 plays the role of assembling and fixing the temperature detection member 321.

[0109] Exemplarily, the temperature detection element 321 may have various structures. For example, the temperature detection element 321 may be an epoxy thermistor or a glass-sealed thermistor.

[0110] Exemplarily, the mounting frame 322 may be made of various materials, for example, the mounting frame 322 may be made of polypropylene, polycarbonate, polyphenylene sulfide, or poly(hexamethylene terephthalamide).

[0111] The mounting frame 322 has an assembly portion 3221, and the assembly portion 3221 is assembled and connected with the confluence component 22. That is, the assembly portion 3221 is a structure of the mounting frame 322 for assembling and connecting with the confluence component 22. The structure of the assembly portion 3221 can be various. For example, Figure 7 and Figure 8 In the figure, the assembly part 3221 is a slot 3225 provided on the mounting frame 322, and the slot 3225 can allow part of the convergence component 22 to be inserted into, so as to realize the assembly connection between the assembly part 3221 and the convergence component 22. Of course, in other embodiments, the assembly part 3221 can also be a pin or an adhesive layer on the mounting frame 322, and the mounting frame 322 can be connected to the convergence component 22 through a pin, or can be bonded to the convergence component 22 through an adhesive layer, etc.

[0112] An installation cavity 3223 with an opening 3222 is formed inside the installation frame 322, and the temperature detection component 321 is accommodated in the installation cavity 3223. In other words, an installation cavity 3223 for assembling the temperature detection component 321 is formed inside the installation frame 322, and the installation cavity 3223 passes through at least one end of the installation frame 322 to form an opening 3222 on the installation frame 322, and the opening 3222 is connected to the installation cavity 3223.

[0113] The installation cavity 3223 and the assembly portion 3221 are arranged at intervals along the first direction X, that is, the installation cavity 3223 is provided with the assembly portion 3221 on at least one side of the first direction X, and the installation cavity 3223 and the assembly portion 3221 are arranged at intervals. Figure 7 and Figure 8 In the figure, the installation cavity 3223 is provided with assembly parts 3221 on both sides in the first direction X, that is, the installation frame 322 is provided with two assembly parts 3221 arranged at intervals along the first direction X, and the installation cavity 3223 is located between the two assembly parts 3221 in the first direction X.

[0114] The installation cavity 3223 is spaced apart from the flow collecting component 22 , that is, the installation cavity 3223 is spaced apart from the flow collecting component 22 in any direction.

[0115] The separation groove 3224 is located between the installation cavity 3223 and the assembly portion 3221 in the first direction X to separate the installation cavity 3223 and the assembly portion 3221. That is, along the first direction X, a separation groove 3224 is arranged between the installation cavity 3223 and the assembly portion 3221, so that the installation cavity 3223 and the assembly portion 3221 are structures separated from each other by the separation groove 3224.

[0116] In the present embodiment, a temperature sampling assembly 32 is mounted on the confluence component 22 of the battery device 100. The temperature sampling assembly 32 is provided with a mounting frame 322 and a temperature detection member 321. The mounting frame 322 has an assembly portion 3221 assembled and connected to the confluence component 22, and an installation cavity 3223 is formed inside the mounting frame 322. The installation cavity 3223 is spaced apart from the confluence component 22. By assembling and connecting the assembly portion 3221 of the mounting frame 322 to the confluence component 22, and arranging the temperature detection member 321 in the installation cavity 3223 of the mounting frame 322, the temperature detection member 321 is installed on the confluence component 22, so that the temperature detection member 321 of the temperature sampling assembly 32 can detect the temperature of the battery cell 21 to obtain the temperature information of the battery cell 21 during use, wherein the assembly portion 3221 and the installation cavity 3223 are along the first direction The structure is arranged at intervals of X, and a partition groove 3224 is provided on the mounting frame 322. The partition groove 3224 is located between the mounting cavity 3223 and the assembly portion 3221 of the mounting frame 322 in the first direction X, so that in the process that the temperature on the confluence component 22 is transferred to the mounting cavity 3223 through the assembly portion 3221, the partition groove 3224 can play a certain blocking and separating role in the transfer of temperature, so as to alleviate the phenomenon that the temperature on the confluence component 22 is transferred to the mounting cavity 3223, thereby reducing the influence of the temperature on the confluence component 22 on the temperature detection component 321, which is conducive to improving the precision and accuracy of the temperature detection component 321 in detecting the temperature of the battery cell 21, and then the temperature sampling component 32 can more effectively obtain the use of the battery cell 21 inside the battery device 100, so as to improve the use stability and reliability of the battery device 100.

[0117] According to some embodiments of the present application, see Figure 7 , Figure 8 and Fig. 9 As shown, the mounting frame 322 is provided with an assembly portion 3221 on at least one side in the first direction X, and the mounting frame 322 has a first surface 3226 and a second surface 3227 relative to each other in the second direction Y, and at least one of the first surface 3226 and the second surface 3227 is provided with a separation groove 3224, and the second direction Y is perpendicular to the first direction X.

[0118] In which, the mounting frame 322 has a first surface 3226 and a second surface 3227 relative to each other in the second direction Y, and at least one of the first surface 3226 and the second surface 3227 is provided with a partition groove 3224, that is, the mounting frame 322 is provided with a partition groove 3224 on at least one side in the second direction Y. Optionally, the mounting frame 322 may be provided with a partition groove 3224 on only one side in the second direction Y, or the mounting frame 322 may be provided with a partition groove 3224 on both sides in the second direction Y. It should be noted that, in the embodiment in which the mounting frame 322 is provided with partitions on both sides in the second direction Y, the partition grooves 3224 located on both sides of the mounting frame 322 in the second direction Y may be mutually penetrating and connected structures, that is, the partition grooves 3224 are provided on the first surface 3226, and the partition grooves 3224 penetrate the second surface 3227 along the second direction Y.

[0119] In this embodiment, by providing an assembly portion 3221 on one side of the mounting frame 322 along the first direction X, and providing a partition groove 3224 on at least one of the first surface 3226 and the second surface 3227 of the mounting frame 322 that are opposite to each other in the second direction Y perpendicular to the first direction X, it is convenient to set the partition groove 3224 in the first direction X to be located between the mounting cavity 3223 and the assembly portion 3221, which is conducive to reducing the difficulty of providing the partition groove 3224 on the mounting frame 322, and can improve the difficulty of the partition groove 3224 separating the mounting cavity 3223 and the assembly portion 3221, and is conducive to improving the effect of the partition groove 3224 in blocking the temperature on the confluence component 22 from being transferred to the mounting cavity 3223 through the assembly portion 3221, so as to alleviate the phenomenon that the temperature on the confluence component 22 is transferred to the mounting cavity 3223, and further can reduce the influence of the temperature on the confluence component 22 on the temperature detection component 321.

[0120] In some embodiments, see Fig. 9 As shown, along the second direction Y, the separation groove 3224 passes through the first surface 3226 and the second surface 3227 .

[0121] In this embodiment, by setting the separation groove 3224 as a structure that passes through the first surface 3226 and the second surface 3227 in the second direction Y, the separation groove 3224 is a through groove structure that passes through both sides of the mounting frame 322 along the second direction Y, thereby being able to further enhance the effect of the separation groove 3224 in blocking the temperature on the convergence component 22 from being transferred to the mounting cavity 3223 through the assembly portion 3221, thereby further alleviating the phenomenon that the temperature on the convergence component 22 is transferred to the mounting cavity 3223, and further reducing the influence of the temperature on the convergence component 22 on the temperature detection component 321, which is beneficial to further enhance the precision and accuracy of the temperature detection component 321 in detecting the temperature of the battery cell 21.

[0122] In some embodiments, see Figure 7 , Figure 8 and Fig. 9 As shown, the mounting frame 322 has mounting portions 3221 on both sides in the first direction X, and the mounting cavity 3223 is located between the two mounting portions 3221 in the first direction X. Two separation grooves 3224 are provided on the mounting frame 322, and along the first direction X, a separation groove 3224 is provided between the two mounting portions 3221 and the mounting cavity 3223.

[0123] Among them, along the first direction X, a separation groove 3224 is provided between the two assembly parts 3221 and the installation cavity 3223, that is, an assembly part 3221, a separation groove 3224, the installation cavity 3223, another separation groove 3224 and another assembly part 3221 are arranged in sequence along the first direction X.

[0124] In this embodiment, by providing assembly parts 3221 on both sides of the mounting frame 322 along the first direction X, and providing a partition groove 3224 between each assembly part 3221 and the mounting cavity 3223, the temperature transfer from the convergence component 22 to the mounting cavity 3223 can be alleviated, and at the same time, the mounting frame 322 can be assembled and connected to the convergence component 22 on both sides of the first direction X, which is beneficial to further improve the stability and reliability of the mounting frame 322 assembled on the convergence component 22.

[0125] According to some embodiments of the present application, Figure 3 , Figure 5 and Figure 7 As shown, along the second direction Y, the first surface 3226 is disposed facing the battery cell 21 . The first surface 3226 in the second direction Y corresponds to the region of the mounting cavity 3223 and abuts against the battery cell 21 directly or indirectly.

[0126] In which, the first surface 3226 directly or indirectly abuts against the battery cell 21 in the area corresponding to the installation cavity 3223 in the second direction Y, that is, along the second direction Y, the part of the mounting frame 322 located between the cavity wall of the installation cavity 3223 and the first surface 3226 can be a structure that is in direct contact with the battery cell 21 or indirectly in contact with it through other components.

[0127] 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 set to be a structure that directly or indirectly abuts against the battery cell 21 so that the temperature on the battery cell 21 can be transferred to the mounting cavity 3223 of the mounting frame 322, which is beneficial to improve the precision and accuracy of the temperature detection element 321 in detecting the temperature of the battery cell 21.

[0128] In some embodiments, in combination Figure 3, Figure 7 and Figure 8 As shown, along the second direction Y, the area of ​​the first surface 3226 corresponding to the mounting cavity 3223 is provided with a thermal pad (not shown in the figure), and the thermal pad abuts against the battery cell 21. In other words, 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 in indirect contact with the battery cell 21 through the thermal pad.

[0129] Exemplarily, the thermal pad may be made of various materials, for example, the thermal pad may be made of silicone, silicone grease or silicone rubber.

[0130] It should be noted that, in the embodiment of the present application, along the second direction Y, the area of ​​the first surface 3226 corresponding to the mounting cavity 3223 is provided with a thermal pad, so that the portion of the mounting frame 322 located between the cavity wall 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 thermal pad. Correspondingly, the insulating member 40 is provided with a second avoidance hole (not shown in the figure) at the position corresponding to the mounting frame 322 in the second direction Y, and the second avoidance hole runs through both sides of the insulating member 40 along the second direction Y, so that the insulating member 40 can avoid the mounting frame 322, so that the mounting frame 322 abuts against the battery cell 21 through the thermal pad.

[0131] In this embodiment, a thermal pad is provided 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 thermal pad abuts against 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 indirectly contacts the battery cell 21 through the thermal pad, so that the temperature of the battery cell 21 can be better transferred to the mounting cavity 3223 of the mounting frame 322 through the thermal pad, thereby further improving the precision and accuracy of the temperature detection element 321 in detecting the temperature of the battery cell 21.

[0132] In some embodiments, in combination Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the battery cell 21 includes a shell 212, an electrode assembly (not shown in the figure) and an electrode terminal 211. The electrode assembly is accommodated in the shell 212, and the electrode terminal 211 is arranged on the shell 212. The electrode terminal 211 is electrically connected to the electrode assembly, and the electrode terminal 211 is connected to the busbar component 22. The first surface 3226 directly or indirectly abuts against the shell 212 in the area corresponding to the mounting cavity 3223 in the second direction Y.

[0133] In which, the area of ​​the first surface 3226 corresponding to the installation cavity 3223 in the second direction Y directly or indirectly abuts against the outer shell 212, that is, the part of the mounting frame 322 located between the cavity wall of the installation cavity 3223 and the first surface 3226 in the second direction Y is a structure that directly or indirectly abuts against the outer shell 212 of the battery cell 21.

[0134] The electrode terminal 211 serves to output or input electrical energy 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 the two electrode terminals 211 are both arranged on the wall of the housing 212 on one side facing the sampling assembly 30 in the second direction Y.

[0135] In this embodiment, the battery cell 21 is provided with an outer shell 212, an electrode assembly accommodated in the outer shell 212, and an electrode terminal 211 arranged on the outer shell 212. By directly or indirectly abutting the first surface 3226 of the mounting frame 322 in the area corresponding to the mounting cavity 3223 in the second direction Y against the outer shell 212 of the battery cell 21, it is helpful to reduce the difficulty of abutting and assembling the first surface 3226 of the mounting frame 322 and the battery cell 21 with each other, and the temperature of the battery cell 21 can be better transmitted to the mounting cavity 3223 of the mounting frame 322, so that the temperature detection component 321 can detect the temperature of the battery cell 21, which is helpful to further improve the precision and accuracy of the temperature detection component 321 in detecting the temperature of the battery cell 21.

[0136] According to some embodiments of the present application, see Figure 7 and Figure 8 As shown, along the third direction Z, the mounting cavity 3223 is formed with an opening 3222 at at least one end of the mounting frame 322 , and the third direction Z is perpendicular to the first direction X and the second direction Y.

[0137] The installation cavity 3223 has an opening 3222 formed at at least one end of the installation frame 322 along the third direction Z, that is, the installation cavity 3223 can be formed with an opening 3222 at only one end of the installation frame 322 along the third direction Z, or can be formed with openings 3222 at both ends of the installation frame 322.

[0138] In this embodiment, the opening 3222 of the mounting cavity 3223 is formed on one side of the mounting frame 322 in the third direction Z, so that the areas of the mounting frame 322 where the opening 3222, the assembly portion 3221 and the partition groove 3224 are set are respectively located on one side of the mounting frame 322 in different directions. On the one hand, the interference effect when the opening 3222, the assembly portion 3221 and the partition groove 3224 are set on the mounting frame 322 can be reduced, which is beneficial to reducing the difficulty of manufacturing the mounting frame 322. On the other hand, the interference effect between the opening 3222 on the mounting frame 322 for assembling the temperature detection component 321 and the assembly portion 3221 can be reduced, thereby facilitating the assembly of the temperature detection component 321 into the mounting cavity 3223 of the mounting frame 322 and facilitating the assembly of the mounting frame 322 on the conduit component 22.

[0139] In some embodiments, see Figure 8 and Fig. 9 As shown, the mounting cavity 3223 passes through both ends of the mounting frame 322 along the third direction Z, so that openings 3222 are formed at both ends of the mounting frame 322 in the third direction Z.

[0140] In this embodiment, by setting the installation cavity 3223 as a structure that passes through both ends of the installation frame 322 along the third direction Z, the installation cavity 3223 can form openings 3222 at both ends of the installation frame 322 along the third direction Z. This makes it easy to form the installation cavity 3223 by processing inside the installation frame 322, which helps to reduce the manufacturing difficulty of the installation cavity 3223 of the installation frame 322. On the other hand, it makes it easy to assemble the temperature detection component 321 into the installation cavity 3223 of the installation frame 322, which helps to further reduce the assembly difficulty between the temperature detection component 321 and the installation frame 322.

[0141] According to some embodiments of the present application, see Figure 5 , Figure 6 and Figure 7 As shown, a card slot 3225 is provided on the mounting frame 322 , and the card slot 3225 is engaged with the converging component 22 , and the card slot 3225 is an assembly portion 3221 .

[0142] The slot 3225 is the assembly part 3221, that is, the assembly part 3221 is the slot 3225 provided on the mounting frame 322, and the slot 3225 is engaged with the converging component 22 to realize the assembly connection between the assembly part 3221 of the mounting frame 322 and the converging component 22. Of course, in other embodiments, the assembly part 3221 may also be a latch or an adhesive layer provided on the mounting frame 322.

[0143] In this embodiment, the assembly portion 3221 of the mounting frame 322 is set as a card slot 3225 structure on the mounting frame 322, and the card slot 3225 is snap-fitted with the convergence component 22 to assemble and connect the assembly portion 3221 of the mounting frame 322 and the convergence component 22 to each other. The structure is simple and easy to assemble.

[0144] According to some embodiments of the present application, see Figure 5 , Figure 7 and Figure 8 As shown, a card slot 3225 is provided on the surface of at least one side of the mounting frame 322 in the first direction X, a separation slot 3224 is provided on the surface of one side of the mounting frame 322 in the second direction Y, and the card slot 3225 passes through both ends of the mounting frame 322 along the third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0145] Among them, a card slot 3225 is provided on the surface of at least one side of the mounting frame 322 in the first direction X, and the card slot 3225 passes through both ends of the mounting frame 322 along the third direction Z, that is, the card slot 3225 is a through slot provided 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 convergence component 22 can be inserted into the card slot 3225 from the first direction X, and can also be inserted into the card slot 3225 from the third direction Z.

[0146] In this embodiment, the card slot 3225 is arranged on the surface of one side of the mounting frame 322 in the first direction X, the card slot 3225 penetrates the two sides of the mounting frame 322 along the third direction Z, and the partition groove 3224 is arranged on the surface of one side of the mounting frame 322 in the second direction Y. Therefore, while reducing the interference between the card slot 3225 and the partition groove 3224, the molding difficulty of the card slot 3225 serving as the assembly part 3221 can be further reduced, so as to reduce the manufacturing difficulty of the mounting frame 322. On the other hand, it can further reduce the difficulty of partially locking the convergence component 22 in the card slot 3225, so as to reduce the assembly difficulty between the convergence component 22 and the assembly part 3221, thereby effectively improving the production efficiency of the battery.

[0147] According to some embodiments of the present application, referring to Figure 5 , Figure 6 and Figure 7 , and please refer to Fig.10 , Fig.10 Schematic diagram of the structure of the converging component 22 provided in some embodiments of the present application. A notch 221 is provided at one end of the converging component 22 in the third direction Z, and the notch 221 penetrates both sides of the converging component 22 along the second direction Y. The mounting frame 322 is inserted into the notch 221 along the third direction Z, and a portion of the converging component 22 is clamped in the clamping groove 3225.

[0148] The second direction Y is also the thickness direction of the collector component 22 , and the notch 221 penetrates both sides of the collector component 22 along the second direction Y, that is, the notch 221 penetrates the surfaces of both sides of the collector component 22 in the thickness direction.

[0149] Exemplarily, the notch 221 is disposed at one end of the conduit component 22 in the third direction Z, and in a plane perpendicular to the second direction Y, the orthographic projection of the notch 221 is in a “U” shape.

[0150] The mounting frame 322 is inserted into the notch 221 along the third direction Z, and part of the confluence component 22 is stuck in the slot 3225, that is, part of the mounting frame 322 is located in the notch 221 in the second direction Y, and correspondingly, part of the area of ​​the confluence component 22 forming the notch 221 is stuck in the slot 3225 of the mounting frame 322, that is, part of the wall surface of the notch 221 of the confluence component 22 is located in the slot 3225, and in the second direction Y, parts of the mounting frame 322 are respectively located on both sides of the confluence component 22.

[0151] In this embodiment, a notch 221 is provided at one end of the confluence component 22 in the third direction Z, and the notch 221 is a structure that penetrates both sides of the confluence component 22 in the second direction Y, so that the mounting frame 322 is inserted into the notch 221 of the confluence component 22 along the third direction Z, and part of the confluence component 22 can also be stuck in the card slot 3225 of the mounting frame 322, that is, it can be realized that part of the confluence component 22 is a structure that is inserted into the card slot 3225 from one end of the card slot 3225 in the third direction Z. A battery adopting such a structure can improve the reliability and stability of the mounting frame 322 of the temperature sampling component 32 assembled to the confluence component 22, and the notch 221 of the confluence component 22 can also play a certain positioning and limiting role on the mounting frame 322 of the temperature sampling component 32, which is beneficial to improving the assembly quality of the mounting frame 322 of the temperature sampling component 32 and the confluence component 22.

[0152] In some embodiments, see Figure 5 , Figure 7 , Figure 8 and Fig.10 As shown, the mounting frame 322 is provided with a card slot 3225 on the surface of both sides in the first direction X.

[0153] Among them, the mounting frame 322 is provided with card grooves 3225 on the surfaces on both sides in the first direction X, so that the mounting frame 322 is formed with assembly parts 3221 on both sides in the first direction X, so that the two opposite wall surfaces of the notch 221 of the conduit component 22 in the first direction X can be respectively clamped in the two card grooves 3225.

[0154] In this embodiment, by providing card grooves 3225 on the surfaces of both sides of the mounting frame 322 along the first direction X, assembly portions 3221 are formed on both sides of the mounting frame 322 in the first direction X, so that the confluence component 22 can be respectively clamped in the card grooves 3225 on both sides of the mounting frame 322 at the notch 221 on opposite sides along the first direction X, thereby further improving the reliability and stability of the mounting frame 322 of the temperature sampling component 32 assembled to the confluence component 22, which is beneficial to further improving the assembly quality of the mounting frame 322 of the temperature sampling component 32 and the confluence component 22.

[0155] In some embodiments, see Figure 5 , Figure 7 , Figure 8 and Fig.10 As shown, the mounting frame 322 is spaced apart from the confluence component 22 along the third direction Z. That is, one end of the mounting frame 322 inserted into the notch 221 of the confluence component 22 in the third direction Z does not contact the confluence component 22 .

[0156] In this embodiment, the mounting frame 322 and the convergence component 22 are arranged as a spaced-apart structure in the third direction Z, so that the mounting frame 322 is not in contact with the convergence component 22 in the third direction Z. This improves the assembly stability of the mounting frame 322 and the convergence component 22 and can further alleviate the phenomenon that the temperature on the convergence component 22 is directly transferred to the mounting frame 322, thereby further reducing the influence of the temperature on the convergence component 22 on the temperature detection component 321.

[0157] According to some embodiments of the present application, referring to Figure 7 and Figure 8 , and please refer to Fig.11 , Fig.11 for Figure 7 The illustrated partial enlarged view of the A portion of the mounting frame 322. The slot 3225 has two slot side surfaces 3225a arranged opposite to each other in the second direction Y, and at least one of the slot side surfaces 3225a is provided with a pressing portion 3228. Along the second direction Y, the pressing portion 3228 is located at one side of the converging component 22, and the pressing portion 3228 presses against the portion of the converging component 22 that is stuck in the slot 3225.

[0158] Among them, the card slot 3225 also has a slot bottom surface 3225b, and the slot bottom surface 3225b is respectively connected to two slot side surfaces 3225a on both sides in the second direction Y. At least one slot side surface 3225a is convexly provided with a pressing portion 3228, that is, only one slot side surface 3225a of the card slot 3225 may be provided with a pressing portion 3228, or both slot side surfaces 3225a may be provided with a pressing portion 3228.

[0159] The pressing portion 3228 presses against the portion of the convergence component 22 that is stuck in the slot 3225, that is, the portion of the convergence component 22 located in the slot 3225 and the pressing portion 3228 press against each other in the second direction Y, so that the portion of the convergence component 22 located in the slot 3225 and the pressing portion 3228 are an interference fit structure in the second direction Y.

[0160] In this embodiment, a pressing portion 3228 is protruded on at least one groove side surface 3225a of the slot 3225, and the pressing portion 3228 presses against one side of the convergence component 22 in the second direction Y along the second direction Y, so that the portion of the convergence component 22 stuck in the slot 3225 and the pressing portion 3228 can be interference fit, thereby further improving the firmness of the convergence component 22 stuck in the slot 3225 of the mounting frame 322, so as to further improve the assembly stability between the assembly portion 3221 of the mounting frame 322 and the convergence component 22, which is beneficial to further improve the stability of the mounting frame 322 of the temperature sampling assembly 32 assembled to the convergence component 22.

[0161] In some embodiments, see Figure 7 and Figure 8 As shown, both groove side surfaces 3225a are provided with pressing portions 3228. Correspondingly, the pressing portions 3228 provided on the two groove side surfaces 3225a press against the two sides of the portion of the converging component 22 stuck in the slot 3225 in the second direction Y respectively.

[0162] Optionally, the pressing portion 3228 provided on each groove side surface 3225a may be one or more. Figure 7 In the embodiment, each groove side surface 3225a is provided with two pressing portions 3228, and the two pressing portions 3228 are arranged at intervals along the third direction Z, and the pressing portions 3228 protruding on the two groove side surfaces 3225a are both structures arranged one by one in the second direction Y. Of course, in other embodiments, the number of pressing portions 3228 protruding on each groove side surface 3225a can also be three, four, five or six, etc.

[0163] In this embodiment, by providing a pressing portion 3228 on both groove side surfaces 3225a of the slot 3225, the portion of the convergence component 22 that is stuck in the slot 3225 can be pressed against the pressing portion 3228 on both sides in the second direction Y, which is beneficial to further enhance the firmness of the convergence component 22 stuck in the slot 3225 of the mounting frame 322, so as to further enhance the assembly stability and reliability between the assembly portion 3221 of the mounting frame 322 and the convergence component 22.

[0164] According to some embodiments of the present application, see Figure 8 and Fig. 9As shown, the slot 3225 also has a slot bottom surface 3225b, which connects the two slot side surfaces 3225a. The slot bottom surface 3225b is protruding with a support portion 3229, which is located in the notch 221 and is configured to separate the conduit component 22 and the slot bottom surface 3225b along the first direction X.

[0165] Among them, the support portion 3229 protruding from the bottom surface 3225b of the slot 3225 serves to provide abutment for the portion of the convergence component 22 stuck in the slot 3225 in the first direction X, so that the portion of the convergence component 22 stuck in the slot 3225 is spaced apart from the bottom surface 3225b of the slot 3225 in the first direction X.

[0166] In this embodiment, a support portion 3229 is protruded on the bottom surface 3225b of the slot 3225, and the support portion 3229 is located in the notch 221 of the convergence component 22, so that the support portion 3229 can be supported between the portion of the convergence component 22 stuck in the slot 3225 and the bottom surface 3225b of the slot 3225, thereby realizing a structure in which the portion of the convergence component 22 stuck in the slot 3225 and the bottom surface 3225b of the slot 3225 are spaced from each other, so as to reduce the temperature transmitted from the convergence component 22 to the mounting frame 322, thereby further reducing the influence of the temperature on the convergence component 22 on the temperature detection component 321, which is beneficial to improving the precision and accuracy of the temperature detection component 321 in detecting the temperature of the battery cell 21.

[0167] According to some embodiments of the present application, see Fig.11 As shown, the pressing portion 3228 has a pressing surface 3228a that presses against the conduit component 22 in the second direction Y, and the pressing portion 3228 also has two guiding slopes 3228b, which are respectively located on both sides of the pressing surface 3228a in the third direction Z, and the guiding slopes 3228b connect the pressing surface 3228a and the groove side surface 3225a.

[0168] Among them, the pressing surface 3228a of the pressing portion 3228 is the surface of the pressing portion 3228 on the side away from the corresponding groove side surface 3225a in the second direction Y, and the pressing surface 3228a of the pressing portion 3228 is the surface of the pressing portion 3228 that presses against the conduit component 22 in the second direction Y.

[0169] The two guide slopes 3228b are respectively located on both sides of the pressure surface 3228a in the third direction Z, and the guide slopes 3228b connect the pressure surface 3228a and the groove side 3225a. That is to say, one guide slope 3228b, the pressure surface 3228a and the other guide slope 3228b are structures arranged in sequence and connected along the third direction Z, and the end of the guide slope 3228b away from the pressure surface 3228a in the third direction Z is connected to the corresponding groove side 3225a.

[0170] In this embodiment, the pressing portion 3228 has a pressing surface 3228a that presses against the conduit component 22 in the second direction Y, and the pressing portion 3228 is also provided with guiding inclined surfaces 3228b located on both sides of the pressing surface 3228a in the third direction Z, so that the guiding inclined surfaces 3228b can connect the pressing surface 3228a and the groove side surface 3225a of the slot 3225, so that when the conduit component 22 is inserted into the slot 3225 along the third direction Z, The guiding slope 3228b can play a certain guiding role on the convergence component 22, so that the guiding slope 3228b can guide the convergence component 22 to the position where it presses against the pressing surface 3228a, thereby alleviating the phenomenon that the pressing portion 3228 and the convergence component 22 are stuck to each other, which is beneficial to reducing the difficulty of the pressing portion 3228 and the convergence component 22 pressing against each other, thereby reducing the difficulty of assembly between the convergence component 22 and the assembly portion 3221 of the mounting frame 322.

[0171] According to some embodiments of the present application, see Figure 6 and Figure 7 As shown, the temperature sampling assembly 32 may further include a sealant 323 , the sealant 323 is filled in the installation cavity 3223 , and the sealant 323 covers the temperature detection component 321 .

[0172] Among them, the sealant 323 is filled in the installation cavity 3223, and the sealant 323 covers the temperature detection component 321. That is to say, the installation cavity 3223 is filled with the sealant 323, and the temperature detection component 321 arranged in the installation cavity 3223 is embedded in the sealant 323, so that the sealant 323 covers the outside of the temperature detection component 321.

[0173] Exemplarily, the sealant 323 may be made of various materials, such as epoxy resin glue, natural resin glue, etc.

[0174] In this embodiment, the installation cavity 3223 of the mounting frame 322 is also filled with sealant 323, and the temperature detection component 321 is covered by the sealant 323. On the one hand, the stability and reliability of the temperature detection component 321 installed in the installation cavity 3223 can be improved, and the temperature detection component 321 can be further stabilized to alleviate the phenomenon of shaking or bumping of the temperature detection component 321 in the installation cavity 3223. On the other hand, the temperature detection component 321 can also be sealed to reduce the damage of the temperature detection component 321 after being damp, which is beneficial to improve the service life of the temperature detection component 321.

[0175] According to some embodiments of the present application, Figure 5 and Figure 6 As shown, the temperature sampling assembly 32 may further include a connecting wire 324, one end of which extends into the installation cavity 3223 and is connected to the temperature detection element 321, and the other end is located outside the installation cavity 3223 and is used to be electrically connected to the battery management system.

[0176] The connecting wire 324 serves to electrically connect the temperature detection member 321 and the wiring harness assembly 31, and the wiring harness assembly 31 is used to electrically connect to the battery management system to achieve electrical connection between the temperature detection member 321 and the battery management system. In the embodiment of the present application, there are two connecting wires 324, and the polarities of the two connecting wires 324 are opposite. The two connecting wires 324 are respectively connected to the positive electrode and the negative electrode of the temperature detection member 321.

[0177] One end of the connecting wire 324 extends into the installation cavity 3223 and is connected to the temperature detection component 321, and the other end is located outside the installation cavity 3223. That is to say, the connecting wire 324 is a structure in which a portion of the connecting wire 324 is located outside the mounting frame 322 and one end of the connecting wire 324 extends into the installation cavity 3223 of the mounting frame 322, so that the connecting wire 324 can be connected to the temperature detection component 321.

[0178] Optionally, the connecting wire 324 includes a conductor and an insulating shell 212 covering the outside of the conductor. The connecting wire 324 is connected to the temperature detecting component 321 so that the conductor of the connecting wire 324 is connected to the temperature detecting component 321, and the insulating shells 212 of the two connecting wires 324 are interconnected to form a weak connection structure. Exemplarily, the conductor of the connecting wire 324 is welded to the temperature detecting component 321 to form a weld mark, and in an embodiment in which the installation cavity 3223 is filled with sealant 323, the sealant 323 covers the outside of the weld mark formed by the welding connection between the conductor of the connecting wire 324 and the temperature detecting component 321.

[0179] It should be noted that, in other embodiments, the temperature sampling assembly 32 may not be provided with the connecting line 324 , that is, the temperature detection component 321 of the temperature sampling assembly 32 is directly connected to the wiring harness assembly 31 .

[0180] In this embodiment, the temperature sampling component 32 is also provided with a connecting wire 324, and one end of the connecting wire 324 extends into the installation cavity 3223 and is connected to the temperature detection component 321, and the other end is located outside the installation cavity 3223 and is used to be electrically connected to the battery management system, so as to reduce the difficulty of electrical connection between the temperature detection component 321 and the battery management system, and the connecting wire 324 and the temperature detection component 321 can be assembled with each other first and then assembled into the battery and electrically connected to the battery management system through the connecting wire 324, which is conducive to optimizing the production rhythm of the battery to improve the production efficiency of the battery.

[0181] According to some embodiments of the present application, the present application further provides an electrical device, which includes the battery device 100 of any of the above schemes, and the battery device 100 is used to provide electrical energy to the electrical device.

[0182] The power-consuming device may be any of the aforementioned devices or systems using the battery device 100 .

[0183] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0184] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery device, characterized in that: include: Multiple battery cells; A busbar component electrically connecting the plurality of battery cells; as well as A temperature sampling assembly, comprising a temperature detection member and a mounting frame, wherein the temperature detection member is configured to detect the temperature of the battery cell, the mounting frame has an assembly portion, the assembly portion is assembled and connected with the confluence component, and a mounting cavity with an opening is formed inside the mounting frame, the mounting cavity and the assembly portion are arranged at intervals along a first direction, and the mounting cavity is arranged at intervals from the confluence component, and the temperature detection member is accommodated in the mounting cavity; Wherein, the mounting frame is further provided with a separation groove, and the separation groove is located between the mounting cavity and the assembly portion in the first direction.

2. The battery device according to claim 1, characterized in that: The mounting frame is provided with the assembly portion on at least one side in the first direction; The mounting frame has a first surface and a second surface opposite to each other in a second direction, at least one of the first surface and the second surface is provided with the separation groove, and the second direction is perpendicular to the first direction.

3. The battery device according to claim 2, characterized in that: Along the second direction, the separation groove penetrates the first surface and the second surface.

4. The battery device according to claim 2, characterized in that: The mounting frame has the assembly parts on both sides in the first direction, and the mounting cavity is located between the two assembly parts in the first direction; Wherein, two separation grooves are arranged on the mounting frame, and along the first direction, the separation grooves are arranged between the two assembly parts and the mounting cavity.

5. The battery device according to claim 2, characterized in that: Along the second direction, the first surface is arranged facing the battery cell; Wherein, an area of ​​the first surface corresponding to the mounting cavity in the second direction directly or indirectly abuts against the battery cell.

6. The battery device according to claim 5, characterized in that: Along the second direction, a thermal pad is provided in a region of the first surface corresponding to the mounting cavity, and the thermal pad abuts against the battery cell.

7. The battery device according to claim 5, characterized in that: The battery cell comprises a housing, an electrode assembly and an electrode terminal, wherein the electrode assembly is accommodated in the housing, the electrode terminal is disposed on the housing, the electrode terminal is electrically connected to the electrode assembly, and the electrode terminal is connected to the current collecting component; Wherein, an area of ​​the first surface corresponding to the installation cavity in the second direction directly or indirectly abuts against the housing.

8. The battery device according to claim 2, characterized in that: The installation cavity is formed with the opening at at least one end of the installation frame along a third direction, and the third direction is perpendicular to the first direction and the second direction.

9. The battery device according to claim 8, characterized in that: The installation cavity passes through both ends of the installation frame along the third direction, so that the openings are formed at both ends of the installation frame in the third direction.

10. The battery device according to any one of claims 1 to 9, characterized in that: The mounting frame is provided with a card slot, the card slot is engaged with the converging component, and the card slot is the assembly portion.

11. The battery device according to claim 10, characterized in that: The mounting frame is provided with the card slot on the surface of at least one side in the first direction; The separation groove is arranged on a surface of one side of the mounting frame in the second direction, and the card slot passes through two ends of the mounting frame along 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, characterized in that: The confluence component is provided with a notch at one end in the third direction, and the notch penetrates through two sides of the confluence component along the second direction; Wherein, 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, characterized in that: The mounting frame is provided with the card slots on surfaces of both sides in the first direction.

14. The battery device according to claim 13, characterized in that: Along the third direction, the mounting frame and the current collecting component are spaced apart from each other.

15. The battery device according to claim 12, characterized in that: The card slot has two slot side surfaces arranged opposite to each other in the second direction, and at least one of the slot side surfaces is convexly provided with a pressing portion; Wherein, along the second direction, the pressing portion is located at one side of the flow collecting component, and the pressing portion presses against a portion of the flow collecting component that is stuck in the slot.

16. The battery device according to claim 15, characterized in that: The pressing parts are convexly arranged on the two groove side surfaces.

17. The battery device according to claim 15, characterized in that: The slot also has a slot bottom surface, which connects the two slot side surfaces. A support portion is protruding from the slot bottom surface, and the support portion is located in the notch. The support portion is configured to separate the conduit component and the slot bottom surface along the first direction.

18. The battery device according to claim 15, characterized in that: The pressing portion has a pressing surface pressing against the flow collecting component in the second direction; Wherein, the pressing portion further has two guiding inclined surfaces, the two guiding inclined surfaces are respectively located on both sides of the pressing surface in the third direction, and the guiding inclined surfaces connect the pressing surface and the groove side surface.

19. The battery device according to claim 1, characterized in that: The temperature sampling component also includes: A sealant is filled in the installation cavity, and the sealant covers the temperature detection component.

20. The battery device according to claim 1, characterized in that The temperature sampling component also includes: A connecting wire, one end of which extends into the installation cavity and is connected to the temperature detection component, and the other end of which is located outside the installation cavity and is used to be electrically connected to the battery management system.

21. An electrical device, characterized in that: The invention comprises a battery device as claimed in any one of claims 1 to 20, wherein the battery device is used to provide electrical energy.

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