Battery and electric device

Abstract

The utility model provides a battery and a power utilization device, and belongs to the technical field of batteries. The battery comprises a battery monomer, a wire harness assembly and a temperature sampling assembly. The wire harness assembly is used for being electrically connected with a battery management system. The temperature sampling assembly comprises a mounting frame and a temperature detection piece, a mounting cavity with an opening is formed in the mounting frame, the temperature detection piece is contained in the mounting cavity, the temperature detection piece is electrically connected with the wire harness assembly, and the temperature detection piece is configured to detect the temperature of the battery monomers. The temperature sampling assembly further comprises a connecting wire, one end of the connecting wire extends into the mounting cavity from the opening and is connected with the temperature detection piece, and the other end of the connecting wire is located outside the mounting cavity and is connected with the wire harness assembly. Therefore, the assembly difficulty of the temperature detection part accommodated in the mounting cavity and the wire harness assembly is reduced, the connecting wire and the temperature detection part can be assembled firstly and then assembled into the battery, and the connecting wire and the wire harness assembly are assembled and connected, so that the production takt of the battery can be optimized, and the assembly efficiency of the battery is improved.

Description

Technical Field

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

[0002] In recent years, new energy vehicles have witnessed a leapfrog development. 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 increasing day by day. Among them, batteries, as the core components of new energy vehicles, have relatively high requirements in terms of use stability and reliability.

[0003] In battery technology, in order to ensure the safety of battery cells, a sampling assembly is generally provided inside the battery. The sampling assembly includes a temperature sampling component and a wiring harness component. The temperature sampling component is electrically connected to the wiring harness component. The temperature sampling component is installed on the busbar component inside the battery, so that the temperature of the battery cell during use can be collected and monitored through the sampling assembly, in order to obtain the usage condition of the battery. However, the assembly structure between the temperature sampling component and the wiring harness component in the existing battery is relatively complex, resulting in a relatively large assembly difficulty between the temperature sampling component and the wiring harness component and the assembly of the sampling assembly inside the battery, which is not conducive to improving the assembly efficiency of the battery. Summary of the Utility Model

[0004] An embodiment of the present application provides a battery and an electrical device using the same, which can effectively improve the assembly efficiency of the battery.

[0005] In a first aspect, an embodiment of the present application provides a battery, including a battery cell, a wiring harness component, and a temperature sampling component; the wiring harness component is used for being electrically connected to a battery management system; the temperature sampling component includes a mounting bracket and a temperature detector. An installation cavity with an opening is formed inside the mounting bracket. The temperature detector is accommodated in the installation cavity. The temperature detector is electrically connected to the wiring harness component. The temperature detector is configured to detect the temperature of the battery cell; wherein, the temperature sampling component further includes a connection wire. One end of the connection wire extends into the installation cavity from the opening and is connected to the temperature detector, and the other end is located outside the installation cavity and is connected to the wiring harness component to electrically connect the temperature detector and the wiring harness component.

[0006] In the above technical solution, the temperature sampling component of the battery is provided with a mounting bracket and a temperature detector. The temperature detector is electrically connected to the battery management system through a wiring harness component, so that the temperature detector can detect the temperature of the battery cell. And the temperature detector is accommodated in the mounting cavity inside the mounting bracket, so that the mounting bracket can play a certain protective role for the temperature detector to reduce the phenomenon of the temperature detector being knocked and damaged during use, and can reduce the assembly difficulty of the temperature detector. Among them, the temperature sampling component is also provided with a connecting wire, and one end of the connecting wire extends into the mounting cavity through an opening and is connected to the temperature detector, and the other end is located outside the mounting cavity and is connected to the wiring harness component, so as to realize the electrical connection between the temperature detector accommodated in the mounting cavity and the wiring harness component through the connecting wire. Sampling a battery with this structure can reduce the assembly difficulty between the temperature detector accommodated in the mounting cavity and the wiring harness component, and can first assemble the connecting wire and the temperature detector with each other and then assemble them into the battery and assemble and connect the connecting wire and the wiring harness component, so as to optimize the production beat of the battery and is beneficial to improving the assembly efficiency of the battery.

[0007] In some embodiments, the temperature sampling component further includes a sealant, the sealant is filled in the mounting cavity, and the sealant covers the temperature detector.

[0008] In the above technical solution, the mounting cavity of the mounting bracket is also filled with a sealant, and the temperature detector is covered by the sealant. On the one hand, it can improve the stability and reliability of the temperature detector installed in the mounting cavity, and can further stabilize the temperature detector to relieve the phenomenon of the temperature detector shaking or being knocked in the mounting cavity. On the other hand, it can also seal the temperature detector to reduce the phenomenon of the temperature detector being damaged after being affected by moisture, thereby being beneficial to improving the service life of the temperature detector. In addition, the structure of connecting the wiring harness component and the temperature detector accommodated in the sealant through the connecting wire can first complete the assembly of the temperature sampling component and then assemble and connect the connecting wire and the wiring harness component, which is beneficial to reducing the assembly difficulty between the temperature detector accommodated in the sealant and the wiring harness component, and can optimize the beat of the battery production line to improve the assembly efficiency of the battery.

[0009] In some embodiments, the connecting wire is welded to the temperature detector to form a welding mark, and the sealant covers the welding mark.

[0010] In the above technical solution, by welding and connecting the connecting wire to the temperature detecting element, it is beneficial to improve the connection stability and reliability between the connecting wire and the temperature detecting element, thereby being able to alleviate the risk of connection failure between the connecting wire and the temperature detecting element, so as to improve the use stability of the temperature sampling component. Among them, by setting the sealant to cover the solder joint formed by the welding connection of the connecting wire and the temperature detecting element, the sealant can also play a certain protective role in the connection position between the connecting wire and the temperature detecting element, thereby being able to alleviate phenomena such as bumping, damage or moisture absorption at the connection position between the connecting wire and the temperature detecting element, and further being beneficial to further improving the connection stability and reliability between the connecting wire and the temperature detecting element.

[0011] In some embodiments, the installation cavity is formed with the opening at both opposite ends of the installation frame.

[0012] In the above technical solution, by setting the installation cavity to have a structure with openings formed at both opposite ends of the installation frame, the installation cavity is a structure that penetrates through both opposite ends of the installation frame. Thus, on the one hand, it is convenient to machine the installation cavity inside the installation frame, which is beneficial to reducing the manufacturing difficulty of the installation cavity of the installation frame. On the other hand, it is convenient to assemble the temperature detecting element into the installation cavity of the installation frame, which is beneficial to further reducing the assembly difficulty between the temperature detecting element and the installation frame.

[0013] In some embodiments, the temperature sampling component includes two of the connecting wires. The polarities of the two connecting wires are opposite, and the two connecting wires are respectively connected to the positive electrode and the negative electrode of the temperature detecting element. Among them, the connecting wire includes a conductor and an insulating outer shell. The insulating outer shell covers the outside of the conductor, and the insulating outer shells of the two connecting wires are connected to each other and form a weak structure at the connection part.

[0014] In the above technical solution, the temperature sampling component is provided with two connecting wires, and the two connecting wires are respectively connected to the positive electrode and the negative electrode of the temperature detector, so as to output or input the electrical signal of the temperature detector. Among them, the connecting wire is provided with a conductor and an insulating outer shell covering the outside of the conductor. By connecting the insulating outer shells of the two connecting wires to each other and forming a weak structure at the connection, on the one hand, it is convenient to organize and assemble the two connecting wires inside the battery, which is beneficial to improving the regularity of the two connecting wires, and can optimize the layout of the two connecting wires inside the battery. On the other hand, when the connecting wires are pulled during use, the two connecting wires can be peeled off from each other, so that one connecting wire has the ability to separate from the other connecting wire when subjected to an external pulling force. Thus, the weak structure between the insulating outer shells of the two connecting wires can buffer and absorb the external force received by the connecting wires, so as to relieve the phenomenon of rigid pulling of the connecting wires, and further reduce the phenomenon of breakage or connection failure of the connecting wires of the temperature sampling component during use, so as to reduce the risk of failure or damage of the temperature sampling component during use, which is beneficial to improving the use stability and service life of the temperature sampling component.

[0015] In some embodiments, a groove is jointly defined between the insulating outer shells of the two connecting wires, and the bottom wall of the groove forms the weak structure.

[0016] In the above technical solution, by forming a groove between the insulating outer shells of the two connecting wires, the structural strength of the position where the insulating outer shells of the two connecting wires are connected to each other is weakened, so that the bottom wall of the groove forms a weak structure between the two connecting wires. The structure is simple, easy to manufacture, and convenient for the two connecting wires to separate when subjected to an external pulling force.

[0017] In some embodiments, the two connecting wires are arranged side by side, and the arrangement direction of the two connecting wires is within the plane jointly defined by the first direction and the second direction. Grooves are formed on both sides of the two connecting wires in the third direction. The two grooves are arranged corresponding to each other in the third direction, and the bottom surfaces of the two grooves form the weak structure. The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0018] In the above technical solution, grooves are formed on both sides of the two connecting wires in the third direction, and the two grooves are arranged opposite to each other in the third direction, so as to form a weak structure between the bottom surfaces of the two grooves corresponding to each other in the third direction. Thus, on the one hand, the strength of the weak structure can be further weakened to facilitate the separation of the two connecting wires when subjected to an external pulling force. On the other hand, the depth of processing of a single groove can be reduced, which is beneficial to reducing the processing difficulty of the temperature sampling component.

[0019] In some embodiments, the insulating outer shells of the two connecting wires are integrally formed.

[0020] In the above technical solution, by setting the insulating shells of the two connecting wires to an integrally formed structure, a weak structure is formed at the connection position of the insulating shells of the two connecting wires. The temperature sampling component with this structure can reduce the forming difficulty of the weak structure between the insulating shells of the two connecting wires, improve the forming efficiency, and is beneficial to improving the production efficiency of the temperature sampling component.

[0021] In some embodiments, the insulating shells of the two connecting wires are separately arranged, and the insulating shells of the two connecting wires are adhesively connected.

[0022] In the above technical solution, by setting the insulating shells of the two connecting wires to a separately arranged structure and adhesively connecting the insulating shells of the two connecting wires to form a weak structure at the adhesive position of the insulating shells of the two connecting wires, the temperature sampling component with this structure can replace connecting wires of different models according to actual situations to facilitate adaptation to different batteries, which is beneficial to expanding the applicable range of the temperature sampling component.

[0023] In some embodiments, at least a part of the connecting wire is bent to form a bent section between the two ends of the connecting wire.

[0024] In the above technical solution, by bending at least a part of the connecting wire so that a bent section is formed between the two ends of the connecting wire, it can be realized that the length of the connecting wire is greater than the distance between the connection position of the connecting wire and the temperature detection component and the connection position of the connecting wire and the wire harness component. The bent section can play a certain buffering role when the connecting wire is pulled, and the bent section can absorb and adapt to the displacement of the temperature detection component relative to the wire harness component in multiple directions, thereby further reducing the pulling force on the connecting wire during use and further alleviating the phenomenon of breakage or connection failure of the connecting wire of the temperature sampling component during use.

[0025] In some embodiments, the battery further includes a busbar component and a plurality of battery cells, and the busbar component is electrically connected to the plurality of battery cells; wherein, the mounting bracket is mounted on the busbar component, and the mounting bracket abuts against the battery cell.

[0026] In the above technical solution, the battery is further provided with a busbar component, and the busbar component is electrically connected to the battery cell. By setting the mounting bracket of the temperature sampling component to be mounted on the busbar component and making the mounting bracket abut against the battery cell, while realizing the temperature sampling component to collect the temperature of the battery cell, it can also play a certain stabilizing role on the mounting bracket to stabilize the temperature detection component, and is beneficial to reducing the difficulty of assembling the mounting bracket of the temperature sampling component into the battery interior.

[0027] In some embodiments, the mounting bracket is snap-fitted with the busbar component.

[0028] In the above technical solution, by setting the mounting bracket to be a structure snap-fitted on the busbar component, on the one hand, the assembly difficulty between the mounting bracket and the busbar component can be reduced, and there is no need to introduce other relatively complex structures or components to realize the assembly between the mounting bracket and the busbar component, which is beneficial to improving the assembly efficiency between the temperature sampling component and the busbar component. On the other hand, the detachable connection between the mounting bracket and the busbar component can be realized, so as to facilitate the maintenance or replacement of the temperature sampling component during the later use process, which is beneficial to reducing the later maintenance difficulty and maintenance cost of the temperature sampling component.

[0029] In some embodiments, the mounting bracket is provided with a card slot, and a part of the busbar component is stuck in the card slot.

[0030] In the above technical solution, by providing a card slot on the mounting bracket and a part of the busbar component is stuck in the card slot, the snap-fitting assembly between the mounting bracket and the busbar component is realized, with a simple structure and convenient assembly.

[0031] In some embodiments, the card slot is provided on the surface of one side of the mounting bracket in the first direction, the card slot runs through both ends of the mounting bracket in the second direction, and the mounting cavity is formed with the opening at least at one end of the mounting bracket in the second direction, and the second direction is perpendicular to the first direction.

[0032] In the above technical solution, by setting the card slot on the surface of one side of the mounting bracket in the first direction and the card slot runs through both ends of the mounting bracket in the second direction, on the one hand, the difficulty of machining and forming the card slot on the mounting bracket can be reduced, so as to reduce the manufacturing difficulty of the mounting bracket. On the other hand, the difficulty of a part of the busbar component being stuck in the card slot can be further reduced, so as to reduce the assembly difficulty between the busbar component and the mounting bracket, thereby effectively improving the production efficiency of the battery. In addition, by forming the opening of the mounting cavity at least at one end of the mounting bracket in the second direction, it is beneficial to reduce the interference effect between the opening and the card slot, and can reduce the interference effect between the busbar component and the temperature detection component.

[0033] In some embodiments, a notch is provided at one end of the busbar component in the second direction, the notch runs through both sides of the busbar component in the third direction, the mounting bracket is inserted into the notch in the second direction, and a part of the busbar component is stuck in the card slot, and the first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0034] In the above technical solution, a notch is provided at one end of the busbar component in the second direction, and the notch penetrates both sides of the busbar component in the third direction. When the mounting bracket is inserted into the notch of the busbar component in the second direction, a part of the busbar component can also be stuck in the card slot of the mounting bracket. That is, a structure is realized in which a part of the busbar component is inserted into the card slot from one end of the card slot in the second direction. The battery adopting this structure can improve the reliability and stability of the mounting bracket 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 for the mounting bracket of the temperature sampling component, which is beneficial to improving the assembly quality of the mounting bracket of the temperature sampling component and the busbar component.

[0035] In some embodiments, the card slots are provided on the surfaces of both sides of the mounting bracket in the first direction.

[0036] In the above technical solution, by providing card slots on both sides of the mounting bracket in the first direction, both opposite sides of the busbar component at the notch in the first direction can be respectively stuck in the two card slots on both sides of the mounting bracket in the first direction, so as to further improve the reliability and stability of the mounting bracket of the temperature sampling component assembled to the busbar component, which is beneficial to further improving the assembly quality of the mounting bracket of the temperature sampling component and the busbar component.

[0037] In some embodiments, a pressing portion protrudes from the bottom surface of the card slot. The pressing portion is located in the notch, and the pressing portion presses against the part of the busbar component stuck in the card slot in the first direction.

[0038] In the above technical solution, by protruding a pressing portion on the bottom surface of the card slot, and the pressing portion presses against the part of the busbar component stuck in the card slot in the first direction, a structure in which the part of the busbar component stuck in the card slot and the mounting bracket are in interference fit can be realized, which is beneficial to further improving the firmness of the busbar component stuck in the card slot of the mounting bracket, so as to further improve the stability of the mounting bracket of the temperature sampling component assembled to the busbar component.

[0039] In some embodiments, the pressing portion has a pressing surface pressing against the busbar component in the first direction; wherein, the pressing portion also has two guiding inclined surfaces, and the two guiding inclined surfaces are respectively located on both sides of the pressing surface in the second direction, and the guiding inclined surfaces connect the pressing surface and the bottom surface of the card slot.

[0040] In the above technical solution, the pressing part has a pressing surface that presses against the busbar component in the first direction, and the pressing part is also provided with guiding inclined surfaces that are respectively located on both sides of the pressing surface in the second direction, so that the guiding inclined surfaces can connect the pressing surface and the bottom surface of the card slot. Thus, during the process of inserting the busbar component into the card slot in the second direction, the guiding inclined surfaces can play a certain guiding role on the busbar component, so as to guide the busbar component to the position where it presses against the pressing surface by the guiding inclined surfaces, and further can alleviate the phenomenon that the pressing part and the busbar component are stuck to each other, which is beneficial to reducing the difficulty of pressing between the pressing part and the busbar component, so as to reduce the assembly difficulty between the busbar component and the mounting bracket.

[0041] In some embodiments, the card slot has two relatively arranged slot side surfaces in the third direction, and at least one slot side surface of the card slot is convexly provided with a pressing part. Along the third direction, the pressing part is located on one side of the busbar component, and the pressing part presses against the part of the busbar component stuck in the card slot.

[0042] In the above technical solution, by convexly providing a pressing part on at least one slot side surface of the card slot, and the pressing part presses against one side of the busbar component in the third direction along the third direction, a structure in which the part of the busbar component stuck in the card slot and the mounting bracket are in interference fit can be realized. Furthermore, it is beneficial to further improve the firmness of the busbar component stuck in the card slot of the mounting bracket, so as to further improve the stability of the mounting bracket of the temperature sampling component assembled on the busbar component.

[0043] In some embodiments, the pressing parts are convexly provided on both slot side surfaces of the card slot.

[0044] In the above technical solution, by providing pressing parts on both slot side surfaces of the card slot, the parts of the busbar component stuck in the card slot can be pressed against the pressing parts on both sides in the third direction, which is beneficial to further improving the firmness of the busbar component stuck in the card slot of the mounting bracket.

[0045] In a second aspect, the embodiments of the present application further provide an electrical device, including the above battery, and the battery is used to provide electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0047] Figure 1 It is a schematic structural diagram of a vehicle provided for some embodiments of the present application;

[0048] Figure 2 Exploded view of the structure of the battery provided by some embodiments of the present application;

[0049] Figure 3 Assembly schematic diagram of the battery module and the sampling assembly provided by some embodiments of the present application;

[0050] Figure 4 Assembly schematic diagram of the battery cell and the busbar component provided by some embodiments of the present application;

[0051] Figure 5 Schematic diagram of the structure of the temperature sampling component provided by some embodiments of the present application;

[0052] Figure 6 Exploded view of the structure of the temperature sampling component provided by some embodiments of the present application;

[0053] Figure 7 Front view of the mounting bracket of the temperature sampling component in the second direction provided by some embodiments of the present application;

[0054] Figure 8 Front view of the temperature sampling component in the third direction provided by some embodiments of the present application;

[0055] Figure 9 Cross-sectional view of two connection lines of the temperature sampling component provided by some embodiments of the present application;

[0056] Figure 10 Assembly schematic diagram of the busbar component and the temperature sampling component provided by some embodiments of the present application;

[0057] Figure 11 Schematic diagram of the structure of the busbar component provided by some embodiments of the present application;

[0058] Figure 12 For Figure 6 Partial enlarged view of the A position of the temperature sampling component shown;

[0059] Figure 13 Schematic diagram of the structure of the mounting bracket of the temperature sampling component provided by some other embodiments of the present application;

[0060] Figure 14 Front view of the mounting bracket of the temperature sampling component in the second direction provided by some other embodiments of the present application.

[0061] Icons: 1000 - vehicle; 100 - battery; 10 - box; 11 - first box body; 12 - second box body; 20 - battery module; 21 - battery cell; 211 - electrode terminal; 212 - housing; 22 - busbar component; 221 - notch; 30 - sampling assembly; 31 - wiring harness assembly; 32 - temperature sampling component; 321 - mounting bracket; 3211 - opening; 3212 - mounting cavity; 3213 - card slot; 3214 - pressing part; 3214a - pressing surface; 3214b - guiding inclined surface; 322 - temperature detector; 323 - connecting wire; 3231 - conductor; 3232 - insulating housing; 3233 - weak structure; 3234 - groove; 3235 - bending section; 324 - sealant; 40 - insulating part; 200 - controller; 300 - motor; X - first direction; Y - second direction; Z - third direction. Detailed implementation manners

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0063] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary - secondary relationship.

[0064] Referring to "embodiments" in the present application means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0065] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0066] The term "and / or" in the present application is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0067] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device are only for illustrative purposes and should not constitute any limitation to the present application.

[0068] The term "a plurality of" as used in the present application refers to two or more (including two).

[0069] In the embodiments of the present application, the battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after discharging so that the active material can be reused.

[0070] 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-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present application are not limited thereto.

[0071] The battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and extracted back and forth between the positive electrode and the negative electrode. The separator is disposed between the positive electrode and the negative electrode, which can prevent the short circuit between the positive and negative electrodes and at the same time allow the active ions to pass through.

[0072] In some embodiments, the electrode assembly is a wound structure. The positive electrode sheet and the negative electrode sheet are wound into a wound structure.

[0073] In some embodiments, the electrode assembly is a stacked structure.

[0074] In some embodiments, the shape of the electrode assembly can be cylindrical, flat, or multi-prismatic, etc.

[0075] In some embodiments, the electrode assembly is provided with tabs, which can conduct current out of the electrode assembly. The tabs include a positive tab and a negative tab.

[0076] 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 can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), or an aluminum-plastic film, etc.

[0077] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell of other shapes. The prismatic battery cell includes, but is not limited to, a square-shell battery cell, a blade-shaped battery cell, and a multi-prismatic battery. The multi-prismatic battery is, for example, a hexagonal-prismatic battery, etc.

[0078] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.

[0079] In some embodiments, the battery can be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0080] In some embodiments, the battery can be a battery pack. The battery pack includes a box body and battery cells, and the battery cells or battery modules are accommodated in the box body.

[0081] In some embodiments, the box body can be part of the chassis structure of a vehicle. For example, part of the box body can become at least part of the floor of the vehicle, or part of the box body can become at least part of the crossbeam and longitudinal beam of the vehicle.

[0082] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0083] The battery has prominent advantages such as high energy density, low environmental pollution, high power density, long service life, wide adaptability, and small self-discharge coefficient, and is an important part of the development of new energy today. The development of battery technology needs to consider various design factors at the same time. For example, performance parameters such as energy density, cycle life, discharge capacity, charge and discharge rate, etc. In addition, the safety of the battery also needs to be considered.

[0084] For a general battery cell, the battery includes a box body and a plurality of battery cells disposed within the box body. The plurality of battery cells are electrically connected through a busbar component to achieve series or parallel connection between the plurality of battery cells. To ensure the safety of the battery cell, a sampling assembly is generally provided within the battery. The sampling assembly includes a temperature sampling component and a wiring harness component. The temperature sampling component is electrically connected to the wiring harness component. By mounting and fixing the temperature sampling component on the busbar component, the temperature sampling component can collect and monitor the temperature of the battery cell during use, so as to obtain the usage condition of the battery. In the related art, to improve the service life of the temperature sampling component, the temperature sampling component generally includes a temperature sensor and a mounting bracket for assembling the temperature sensor. The mounting bracket is mounted on the busbar component, and the temperature sensor is mounted within the mounting bracket, so that the mounting bracket can play a certain protective role for the temperature sensor. The temperature sensor is directly connected to the wiring harness in the wiring harness component to achieve electrical connection between the temperature sensor and the wiring harness component. However, in a battery with such a structure, since the temperature sensor is mounted inside the mounting bracket, the connection structure between the temperature sensor and the wiring harness component is relatively complex, resulting in a relatively large assembly difficulty between the temperature sampling component and the wiring harness component. Thus, the assembly process between the temperature sampling component and the wiring harness component will take up more assembly time, which is not conducive to optimizing the production beat of the battery, and further results in a low assembly efficiency of the battery.

[0085] Based on the above considerations, to solve the problem of low assembly efficiency of the battery, an embodiment of the present application provides a battery, which includes a battery cell, a wiring harness component, and a temperature sampling component. The wiring harness component is used for electrically connecting to a battery management system. The temperature sampling component includes a mounting bracket and a temperature detection element. An installation cavity with an opening is formed inside the mounting bracket. The temperature detection element is accommodated in the installation cavity. The temperature detection element is electrically connected to the wiring harness component. The temperature detection element is configured to detect the temperature of the battery cell. The temperature sampling component further includes a connection wire. One end of the connection wire extends into the installation cavity from the opening and is connected to the temperature detection element, and the other end is located outside the installation cavity and is connected to the wiring harness component to electrically connect the temperature detection element and the wiring harness component.

[0086] In a battery with such a structure, the temperature sampling component of the battery is provided with a mounting bracket and a temperature detector. The temperature detector is electrically connected to the battery management system through a wiring harness component, so that the temperature detector can detect the temperature of the battery cell. The temperature detector is accommodated in the mounting cavity inside the mounting bracket, so that the mounting bracket can play a certain protective role for the temperature detector, reducing the phenomenon of the temperature detector being knocked and damaged during use, and reducing the assembly difficulty of the temperature detector. Among them, the temperature sampling component is also provided with a connecting wire, and one end of the connecting wire extends into the mounting cavity through an opening and is connected to the temperature detector, and the other end is located outside the mounting cavity and is connected to the wiring harness component, so as to realize the electrical connection between the temperature detector accommodated in the mounting cavity and the wiring harness component through the connecting wire. Sampling a battery with such a structure can reduce the assembly difficulty between the temperature detector accommodated in the mounting cavity and the wiring harness component, and the connecting wire and the temperature detector can be assembled with each other first and then assembled into the battery and the connecting wire and the wiring harness component can be assembled and connected to each other, so as to optimize the production rhythm of the battery and improve the assembly efficiency of the battery.

[0087] The battery disclosed in the embodiment of the present application can be but is not limited to being used in power-consuming devices such as vehicles, ships or aircraft. A power supply system of the power-consuming device can be composed of the battery disclosed in the present application. In this way, it is beneficial to alleviate the problem of poor production rhythm of the battery and improve the assembly efficiency of the battery.

[0088] The embodiment of the present application provides a power-consuming device using a battery as a power source. The power-consuming device can be but is not limited to a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy and an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle and a spaceship, etc.

[0089] For the convenience of description in the following embodiments, a power-consuming device in an embodiment of the present application is taken as an example of a vehicle for description.

[0090] Please refer to Figure 1 , Figure 1Schematic structural diagram of vehicle 1000 provided by some embodiments of the present application. Vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, an extended-range vehicle, etc. A battery 100 is disposed inside vehicle 1000. The battery 100 can be disposed at the bottom of vehicle 1000, or at the head of vehicle 1000, or at the tail of vehicle 1000. The battery 100 can be used to supply power to vehicle 1000. For example, the battery 100 can be used as the operating power source or the power consumption source of vehicle 1000. Vehicle 1000 can also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300. For example, it is used for the working power requirements during the start, navigation, and driving of vehicle 1000.

[0091] In some embodiments of the present application, the battery 100 can not only be used as the operating power source or the power consumption source of vehicle 1000, but also be used as the driving power source of vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for vehicle 1000.

[0092] Please refer to Figure 2 and Figure 3 , Figure 2 Exploded view of the structure of battery 100 provided by some embodiments of the present application, Figure 3 Assembly schematic diagram of battery module 20 and sampling assembly 30 provided by some embodiments of the present application. The battery 100 includes a box body 10 and at least one battery module 20. The battery module 20 is accommodated in the box body 10. The battery module 20 includes a plurality of battery cells 21 stacked along the first direction X.

[0093] Among them, the box body 10 is used to provide an assembly space for the battery module 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include a first box body 11 and a second box body 12. The first box body 11 and the second box body 12 are covered with each other along the third direction Z. The first box body 11 and the second box body 12 jointly define an assembly space for accommodating the battery module 20. The second box body 12 can be a hollow structure with one end open. The first box body 11 can be a plate-like structure. The first box body 11 is covered on 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 can also both be hollow structures with one side open, and the open side of the first box body 11 is covered on the open side of the second box body 12.

[0094] 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, etc. Exemplarily, in Figure 2 , the shape of the box body 10 is a cuboid.

[0095] Optionally, in the battery 100, the battery module 20 accommodated in the box 10 may be one or more. When there are multiple battery modules 20 disposed in the box 10, the multiple battery modules 20 may be connected in series, in parallel, or in a combined series-parallel connection. A combined series-parallel connection means that there are both series and parallel connections among the multiple battery modules 20. The multiple battery modules 20 may be directly connected in series, in parallel, or in a combined series-parallel connection together, and then the whole formed by the multiple battery modules 20 is accommodated in the box 10.

[0096] Exemplarily, in combination with Figure 2 and Figure 3 as shown, the battery 100 includes two battery modules 20. The two battery modules 20 are arranged along the second direction Y, and the two battery modules 20 are connected in series with each other.

[0097] In Figure 3 , each battery module 20 includes a busbar component 22 and a plurality of battery cells 21 stacked along the first direction X. The busbar component 22 is located on one side of the plurality of battery cells 21 in the third direction Z. The busbar component 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 pairwise. The first direction X is the thickness direction of the battery cell 21, the second direction Y is the length direction of the battery cell 21, and the third direction Z is the height direction of the battery cell 21.

[0098] Among them, referring to Figure 3 , and further referring to Figure 4 , Figure 4 is an assembly schematic diagram of the battery cell 21 and the busbar component 22 provided in some embodiments of the present application. At one end of the battery cell 21 in the third direction Z, two electrode terminals 211 are provided. The polarities of the two electrode terminals 211 are opposite. The two electrode terminals 211 are respectively used to input or output the positive and negative electrodes of the battery cell 21. The busbar component 22 is connected to the electrode terminals 211 of the battery cell 21 to electrically connect the plurality of battery cells 21. It should be noted that the plurality of battery cells 21 in the battery module 20 may be connected in series, in parallel, or other structures. Exemplarily, in Figure 3 , the plurality of battery cells 21 in the battery module 20 are in a structure connected in series in sequence through a plurality of busbar components 22.

[0099] 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 the shape of a cuboid, a cylinder, a prism, or other shapes, etc. Exemplarily, in Figure 2 and Figure 3 , the battery cell 21 is in a cuboid structure.

[0100] In some embodiments, see Figure 2 and Figure 3 As shown, the battery 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 the battery management system of the battery 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.

[0101] The sampling assemblies 30 are arranged in a one-to-one correspondence with the battery modules 20 , and each battery module 20 is correspondingly arranged with a sampling assembly 30 .

[0102] Exemplarily, the sampling assembly 30 is located on a side of the battery module 20 in the third direction Z where the busbar component 22 is disposed.

[0103] In some embodiments, see Figure 2 and Figure 3 As shown, the battery 100 may further include an insulating member 40, which is disposed between the sampling assembly 30 and a plurality of battery cells 21 to insulate and isolate the sampling assembly 30 and the battery cells 21, thereby helping to reduce 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 100 during use, thereby improving the reliability of the battery 100.

[0104] 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.

[0105] 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 third direction Z. Correspondingly, a first avoidance hole is provided on the insulating member 40, and the first avoidance hole passes through both sides of the insulating member 40 along the third direction Z. 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.

[0106] According to some embodiments of the present application, referring to Figure 3 and Figure 4 , and please refer to Figure 5 , Figure 6 and Figure 7 , Figure 5 This is a schematic diagram of the structure of the temperature sampling component 32 provided in some embodiments of the present application.Figure 6 Exploded view of the structure of the temperature sampling component 32 provided in some embodiments of the present application Figure 7 Front view of the mounting bracket 321 of the temperature sampling component 32 provided in some embodiments of the present application in the second direction Y. The present application provides a battery 100, which includes battery cells 21, a harness assembly 31, and a temperature sampling component 32. The harness assembly 31 is used for electrical connection with a battery management system. The temperature sampling component 32 includes a mounting bracket 321 and a temperature detection element 322. An installation cavity 3212 with an opening 3211 is formed inside the mounting bracket 321. The temperature detection element 322 is accommodated in the installation cavity 3212. The temperature detection element 322 is electrically connected to the harness assembly 31, and the temperature detection element 322 is configured to detect the temperature of the battery cell 21. The temperature sampling component 32 further includes a connection wire 323. One end of the connection wire 323 extends into the installation cavity 3212 from the opening 3211 and is connected to the temperature detection element 322, and the other end is located outside the installation cavity 3212 and is connected to the harness assembly 31 to electrically connect the temperature detection element 322 and the harness assembly 31.

[0107] Among them, the harness assembly 31 of the sampling assembly 30 functions to electrically connect the temperature detection element 322 of the temperature sampling component 32 and the battery management system. The harness assembly 31 includes a plurality of harnesses. One end of the harness is used for electrical connection with the temperature detection element 322, and the other end is used for electrical connection with the battery management system. For the specific structure of the harness assembly 31, reference can be made to the related art and will not be elaborated here.

[0108] The temperature sampling component 32 includes a temperature detection element 322 and a mounting bracket 321. The temperature detection element 322 functions to detect the temperature of the battery cell 21. After the temperature detection element 322 is connected to the harness assembly 31 through the connection wire 323, it is electrically connected to the battery management system through the harness assembly 31, so as to be able to monitor and obtain the temperature information of the battery cell 21 during use. The temperature detection element 322 is installed in the installation cavity 3212 of the mounting bracket 321, so that the mounting bracket 321 functions to assemble and fix the temperature detection element 322.

[0109] Exemplarily, the structure of the temperature detection element 322 can be various. For example, the temperature detection element 322 can be an epoxy thermistor or a glass-encapsulated thermistor, etc.

[0110] Optionally, the structure of the mounting bracket 321 disposed in the battery 100 can be various. Exemplarily, in Figure 3 ..., the mounting bracket 321 of the temperature sampling component 32 is installed on the busbar component 22 of the battery module 20. Of course, in other embodiments, it can also be installed on the outer shell 212 of the battery cell 21.

[0111] An installation cavity 3212 with an opening 3211 is formed inside the mounting bracket 321. That is to say, an installation cavity 3212 for assembling the temperature detection component 322 is formed inside the mounting bracket 321, and the installation cavity 3212 penetrates at least one end of the mounting bracket 321, so as to form an opening 3211 on the mounting bracket 321, and the opening 3211 communicates with the installation cavity 3212, making the mounting bracket 321 a hollow structure with an opening 3211 formed thereon.

[0112] Exemplarily, in Figure 7 , the opening 3211 of the installation cavity 3212 is formed at least one end of the mounting bracket 321 in the second direction Y. That is to say, the installation cavity 3212 may have an opening 3211 formed only at one end of the mounting bracket 321 along the second direction Y, or may have openings 3211 formed at both ends of the mounting bracket 321 along the second direction Y.

[0113] Optionally, the material of the mounting bracket 321 can be various. The mounting bracket 321 can be made of non-metal materials, such as rubber, plastic or silica gel, etc. Of course, the mounting bracket 321 can also be made of metal materials, such as copper, iron, aluminum or steel, etc.

[0114] In the embodiment of the present application, the connection wire 323 functions to electrically connect the temperature detection component 322 and the wire harness assembly 31. The wire harness assembly 31 is used to be electrically connected to the battery management system to realize the electrical connection between the temperature detection component 322 and the battery management system. Among them, there are two connection wires 323, and the polarities of the two connection wires 323 are opposite. The two connection wires 323 are respectively connected to the positive and negative electrodes of the temperature detection component 322.

[0115] One end of the connection wire 323 extends from the opening 3211 into the installation cavity 3212 and is connected to the temperature detection component 322, and the other end is located outside the installation cavity 3212 and is connected to the wire harness assembly 31. That is to say, the connection wire 323 is a structure partially located outside the mounting bracket 321 and one end of the connection wire 323 extends into the installation cavity 3212 of the mounting bracket 321 through the opening 3211, so that the connection wire 323 can be connected to the temperature detection component 322 accommodated in the installation cavity 3212 of the mounting bracket 321.

[0116] In some embodiments, please refer to Figure 5 , and please further refer to Figure 8 and Figure 9 , Figure 8 is the front view of the temperature sampling assembly 32 provided in some embodiments of the present application in the third direction Z. Figure 9A cross-sectional view of two connecting wires 323 of the temperature sampling component 32 provided in some embodiments of the present application. The connecting wire 323 includes a conductor 3231 and an insulating outer shell 3232 covering the outside of the conductor 3231, and the insulating outer shells 3232 of the two connecting wires 323 are connected to each other. It should be noted that the connection of the connecting wire 323 to the temperature detection component 322 means the connection of the conductor 3231 of the connecting wire 323 to the temperature detection component 322. Similarly, the connection of the connecting wire 323 to the wire harness assembly 31 means the connection of the conductor 3231 of the connecting wire 323 to the wire harness in the wire harness assembly 31.

[0117] Optionally, the conductor 3231 of the connecting wire 323 is welded to the temperature detection component 322. Similarly, the conductor 3231 of the connecting wire 323 is welded to the wire harness of the wire harness assembly 31. Exemplarily, the conductor 3231 of the connecting wire 323 and the temperature detection component 322 can be welded by methods such as soldering or resistance welding. Similarly, the conductor 3231 of the connecting wire 323 and the wire harness of the wire harness assembly 31 can be welded by methods such as soldering or resistance welding.

[0118] In this embodiment, the temperature sampling component 32 of the battery 100 is provided with a mounting bracket 321 and a temperature detection component 322. The temperature detection component 322 is electrically connected to the battery management system through the wire harness assembly 31 so that the temperature detection component 322 can detect the temperature of the battery cell 21. And the temperature detection component 322 is accommodated in the mounting cavity 3212 inside the mounting bracket 321, so that the mounting bracket 321 can play a certain protective role for the temperature detection component 322 to reduce the phenomenon of the temperature detection component 322 being knocked and damaged during use, and can reduce the assembly difficulty of the temperature detection component 322. Among them, the temperature sampling component 32 is further provided with a connecting wire 323, and one end of the connecting wire 323 extends into the mounting cavity 3212 through the opening 3211 and is connected to the temperature detection component 322, and the other end is located outside the mounting cavity 3212 and is connected to the wire harness assembly 31 to realize the electrical connection between the temperature detection component 322 accommodated in the mounting cavity 3212 and the wire harness assembly 31 through the connecting wire 323. The battery 100 with this structure can reduce the assembly difficulty between the temperature detection component 322 accommodated in the mounting cavity 3212 and the wire harness assembly 31, and can first assemble the connecting wire 323 and the temperature detection component 322 with each other and then assemble them into the battery 100 and assemble and connect the connecting wire 323 and the wire harness assembly 31, so as to optimize the production rhythm of the battery 100 and be beneficial to improving the assembly efficiency of the battery 100.

[0119] According to some embodiments of the present application, referring to Figure 5 and Figure 6 As shown, the temperature sampling component 32 may further include a sealant 324. The sealant 324 is filled in the mounting cavity 3212, and the sealant 324 covers the temperature detection component 322.

[0120] Among them, the sealant 324 is filled in the installation cavity 3212, and the sealant 324 covers the temperature detection element 322. That is to say, the installation cavity 3212 is filled with the sealant 324, and the temperature detection element 322 disposed in the installation cavity 3212 is embedded in the sealant 324, so that the sealant 324 covers the outside of the temperature detection element 322.

[0121] Exemplarily, the material of the sealant 324 can be various, such as epoxy resin glue, natural resin glue, etc.

[0122] In this embodiment, the installation cavity 3212 of the mounting bracket 321 is also filled with the sealant 324, and the temperature detection element 322 is covered by the sealant 324. On the one hand, it can improve the stability and reliability of the temperature detection element 322 installed in the installation cavity 3212, and can further stabilize the temperature detection element 322 to alleviate phenomena such as shaking or bumping of the temperature detection element 322 in the installation cavity 3212. On the other hand, it can also seal the temperature detection element 322 to reduce phenomena such as damage of the temperature detection element 322 after being affected by moisture, which is beneficial to improving the service life of the temperature detection element 322. In addition, the structure of connecting the connecting wire 323 to the wire harness assembly 31 and the temperature detection element 322 accommodated in the sealant 324 can first complete the assembly of the temperature sampling assembly 32 and then assemble and connect the connecting wire 323 to the wire harness assembly 31, which is beneficial to reducing the assembly difficulty between the temperature detection element 322 accommodated in the sealant 324 and the wire harness assembly 31, and can optimize the production line rhythm of the battery 100 to improve the assembly efficiency of the battery 100.

[0123] In some embodiments, the connecting wire 323 is welded to the temperature detection element 322 to form a welding mark, and the sealant 324 covers the welding mark. That is to say, the welding mark formed at the connection position between the conductor 3231 of the connecting wire 323 and the temperature detection element 322 is also embedded in the sealant 324, so that the sealant 324 covers the outside of the welding mark formed at the connection position between the conductor 3231 of the connecting wire 323 and the temperature detection element 322.

[0124] In this embodiment, by welding and connecting the connecting wire 323 to the temperature detecting element 322, it is beneficial to improve the connection stability and reliability between the connecting wire 323 and the temperature detecting element 322, thereby being able to alleviate the risk of connection failure between the connecting wire 323 and the temperature detecting element 322, so as to improve the use stability of the temperature sampling assembly 32. Among them, by setting the sealant 324 to cover the weld mark formed by the welding connection between the connecting wire 323 and the temperature detecting element 322, the sealant 324 can also play a certain protective role in the connection position between the connecting wire 323 and the temperature detecting element 322, thereby being able to alleviate phenomena such as bumping, damage or moisture absorption at the connection position between the connecting wire 323 and the temperature detecting element 322, and further being beneficial to further improving the connection stability and reliability between the connecting wire 323 and the temperature detecting element 322.

[0125] According to some embodiments of the present application, referring to Figure 6 and Figure 7 As shown, openings 3211 are formed at both opposite ends of the mounting bracket 321 for the mounting cavity 3212. That is to say, the mounting cavity 3212 is a structure that penetrates through both opposite ends of the mounting bracket 321, so that openings 3211 are formed at both opposite ends of the mounting bracket 321.

[0126] Exemplarily, the mounting cavity 3212 penetrates through both ends of the mounting bracket 321 along the second direction Y, so that openings 3211 are formed at both ends of the mounting bracket 321 along the second direction Y.

[0127] In this embodiment, by setting the mounting cavity 3212 to have openings 3211 formed at both opposite ends of the mounting bracket 321, the mounting cavity 3212 is a structure that penetrates through both opposite ends of the mounting bracket 321. Thus, on the one hand, it is convenient to machine the mounting cavity 3212 inside the mounting bracket 321, which is beneficial to reducing the manufacturing difficulty of the mounting cavity 3212 of the mounting bracket 321. On the other hand, it is convenient to assemble the temperature detecting element 322 into the mounting cavity 3212 of the mounting bracket 321, which is beneficial to further reducing the assembly difficulty between the temperature detecting element 322 and the mounting bracket 321.

[0128] According to some embodiments of the present application, referring to Figure 8 and Figure 9 As shown, the temperature sampling assembly 32 may include two connecting wires 323 with opposite polarities. The two connecting wires 323 are respectively connected to the positive electrode and the negative electrode of the temperature detecting element 322. The connecting wire 323 includes a conductor 3231 and an insulating outer shell 3232. The insulating outer shell 3232 covers the outside of the conductor 3231. The insulating outer shells 3232 of the two connecting wires 323 are connected to each other and form a weak structure 3233 at the connection point.

[0129] Among them, the insulating housing 3232 of each connecting wire 323 serves to insulate and isolate the conductor 3231 from other components or another connecting wire 323. The material of the insulating housing 3232 can be various. For example, the material of the insulating housing 3232 can be rubber, plastic, silicone, etc.

[0130] The insulating housings 3232 of two connecting wires 323 are connected to each other and form a weak structure 3233 at the connection. That is to say, the insulating housings 3232 of two connecting wires 323 are connected to each other, and a weak structure 3233 is formed at the connection position between the insulating housings 3232 of two connecting wires 323. That is, the connection structure between the insulating housings 3232 of two connecting wires 323 is a weak connection relationship, so that the weak structure 3233 between two connecting wires 323 is configured to be damaged when subjected to external pulling force, so as to further separate two connecting wires 323.

[0131] Optionally, the weak structure 3233 between the insulating housings 3232 of two connecting wires 323 can be various. For example, the insulating housings 3232 of two connecting wires 323 can be an integrally formed structure, and a weak area is formed between the insulating housings 3232 of two connecting wires 323, and this weak area is the weak structure 3233 between two connecting wires 323. Of course, the insulating housings 3232 of two connecting wires 323 can also be a split structure, and the insulating housings 3232 of two connecting wires 323 are adhesively bonded to each other, etc., so as to form a weak structure 3233 at the adhesive position of the insulating housings 3232 of two connecting wires 323.

[0132] In this embodiment, the temperature sampling component 32 is provided with two connection lines 323, and the two connection lines 323 are respectively connected to the positive and negative electrodes of the temperature detector 322 to facilitate the output or input of the electrical signal of the temperature detector 322. Among them, the connection line 323 is provided with a conductor 3231 and an insulating outer shell 3232 covering the outside of the conductor 3231. By connecting the insulating outer shells 3232 of the two connection lines 323 to each other and forming a weak structure 3233 at the connection, on the one hand, it is convenient to sort and assemble the two connection lines 323 inside the battery 100, which is beneficial to improving the regularity of the two connection lines 323, and can optimize the layout of the two connection lines 323 inside the battery 100. On the other hand, when the connection line 323 is pulled during use, the two connection lines 323 can be peeled off from each other, so that one connection line 323 has the ability to separate from the other connection line 323 when subjected to external pulling force. Thus, the weak structure 3233 between the insulating outer shells 3232 of the two connection lines 323 can buffer and absorb the external force received by the connection line 323, so as to relieve the phenomenon of rigid pulling of the connection line 323, and further reduce the phenomenon of breakage or connection failure of the connection line 323 of the temperature sampling component 32 during use, so as to reduce the risk of failure or damage of the temperature sampling component 32 during use, which is beneficial to improving the use stability and service life of the temperature sampling component 32.

[0133] In some embodiments, in combination with Figure 8 and Figure 9 As shown, a groove 3234 is jointly defined between the insulating outer shells 3232 of the two connection lines 323, and the bottom wall of the groove 3234 forms the weak structure 3233.

[0134] Among them, a groove 3234 is jointly defined between the insulating outer shells 3232 of the two connection lines 323, that is, the groove 3234 is formed between the insulating outer shells 3232 of the two connection lines 323. That is to say, a groove 3234 is formed by the depression at the connection of the insulating outer shells 3232 of the two connection lines 323, so that the part at the bottom of the groove 3234 is the weak structure 3233 between the two connection lines 323.

[0135] In this embodiment, by forming a groove 3234 between the insulating outer shells 3232 of the two connection lines 323, the structural strength at the position where the insulating outer shells 3232 of the two connection lines 323 are connected to each other is weakened, so that the bottom wall of the groove 3234 forms the weak structure 3233 between the two connection lines 323. The structure is simple, easy to manufacture, and convenient for the two connection lines 323 to separate when subjected to external pulling force.

[0136] According to some embodiments of the present application, please continue to refer to Figure 8 and Figure 9As shown, two connecting lines 323 are arranged side by side, and the arrangement direction of the two connecting lines 323 is within the plane defined by the first direction X and the second direction Y. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other pairwise. Grooves 3234 are formed on both sides of the two connecting lines 323 in the third direction Z. The two grooves 3234 are arranged corresponding to each other in the third direction Z, and a weak structure 3233 is formed between the bottom surfaces of the two grooves 3234.

[0137] Among them, the two connecting lines 323 are arranged side by side, and the arrangement direction of the two connecting lines 323 is within the plane defined by the first direction X and the second direction Y. That is to say, the arrangement direction of the two connecting lines 323 is parallel to the plane defined by the first direction X and the second direction Y. Exemplarily, in Figure 8 part of the two connecting lines 323 is a structure arranged along the first direction X, and part is a structure arranged along the second direction Y.

[0138] Grooves 3234 are formed on both sides of the two connecting lines 323 in the third direction Z. The two grooves 3234 are arranged corresponding to each other in the third direction Z. That is to say, two grooves 3234 are formed between the insulating shells 3232 of the two connecting lines 323. The positions of the two grooves 3234 correspond to each other in the third direction Z, and the openings of the two grooves 3234 are located on both sides of the connecting lines 323 in the third direction Z respectively.

[0139] A weak structure 3233 is formed between the bottom surfaces of the two grooves 3234. That is to say, the weak structure 3233 between the two connecting lines 323 is located between the bottom surfaces of the two grooves 3234 arranged along the third direction Z.

[0140] In this embodiment, grooves 3234 are formed on both sides of the two connecting lines 323 in the third direction Z, and the two grooves 3234 are arranged opposite to each other in the third direction Z, so as to form a weak structure 3233 between the bottom surfaces of the two grooves 3234 corresponding to each other in the third direction Z. On the one hand, the strength of the weak structure 3233 can be further weakened, so that the two connecting lines 323 can be separated when subjected to external pulling force. On the other hand, the processing depth of a single groove 3234 can be reduced, which is beneficial to reducing the processing difficulty of the temperature sampling component 32.

[0141] According to some embodiments of the present application, referring to Figure 9 as shown, the insulating shells 3232 of the two connecting lines 323 are integrally formed. That is to say, the insulating shells 3232 outside the conductors 3231 of the two connecting lines 323 are formed by an integral process, and a weak structure 3233 is formed on the insulating shell 3232 between the conductors 3231 of the two connecting lines 323.

[0142] Exemplarily, the insulating housings 3232 of the two connection lines 323 can be made by an integral forming process such as injection molding or extrusion molding.

[0143] In this embodiment, by setting the insulating housings 3232 of the two connection lines 323 as an integral structure, a weak structure 3233 is formed at the connection position of the insulating housings 3232 of the two connection lines 323. The temperature sampling component 32 with this structure can reduce the forming difficulty of the weak structure 3233 between the insulating housings 3232 of the two connection lines 323, and can improve the forming efficiency, which is beneficial to improving the production efficiency of the temperature sampling component 32.

[0144] Of course, the structure of the temperature sampling component 32 is not limited to this. In some embodiments, the temperature sampling component 32 can also be other structures. For example, the insulating housings 3232 of the two connection lines 323 are separately arranged, and the insulating housings 3232 of the two connection lines 323 are adhesively connected. That is to say, the adhesive used to bond the insulating housings 3232 of the two connection lines 323 is the weak structure 3233.

[0145] Exemplarily, the insulating housings 3232 of the two connection lines 323 can be adhesively connected by structures such as glue or double-sided tape.

[0146] In this embodiment, by setting the insulating housings 3232 of the two connection lines 323 as a separately arranged structure and adhesively connecting the insulating housings 3232 of the two connection lines 323, a weak structure 3233 is formed at the adhesive position of the insulating housings 3232 of the two connection lines 323. The temperature sampling component 32 with this structure can replace connection lines 323 of different models according to actual situations, so as to be adapted to different batteries 100, which is beneficial to expanding the application range of the temperature sampling component 32.

[0147] According to some embodiments of the present application, referring to Figure 6 and Figure 8 As shown, at least a part of the connection line 323 is bent to form a bent section 3235 between the two ends of the connection line 323. That is to say, a bent structure is formed on the connection line 323, and the bent part of the connection line 323 is the bent section 3235 of the connection line 323, and the bent section 3235 is located between the two ends of the connection line 323 on the connection line 323, so that the distance between the connection position of the connection line 323 and the temperature detection component 322 and the connection position of the connection line 323 and the wire harness assembly 31 is less than the length of the connection line 323.

[0148] Among them, the bent section 3235 formed on the connection line 323 can be one or multiple. Exemplarily, in Figure 8Among them, a plurality of bending segments 3235 are formed on the connection line 323, so that the connection line 323 also has a plurality of straight segments. In the extending direction of the connection line 323, a straight segment is connected between every two adjacent bending segments 3235.

[0149] It should be noted that in the embodiment where the temperature sampling component 32 includes two connection lines 323, bending segments 3235 are formed on both connection lines 323.

[0150] In this embodiment, by bending at least a part of the connection line 323, so that a bending segment 3235 is formed between the two ends of the connection line 323, it is possible to make the length of the connection line 323 greater than the distance between the connection position of the connection line 323 and the temperature detection component 322 and the connection position of the connection line 323 and the wire harness assembly 31. Thus, the bending segment 3235 can play a certain buffering role when the connection line 323 is pulled, and the bending segment 3235 can absorb and adapt to the displacements generated by the temperature detection component 322 relative to the wire harness assembly 31 in multiple directions. Furthermore, the pulling force on the connection line 323 during use can be further reduced, so as to further alleviate the phenomenon of breakage or connection failure of the connection line 323 of the temperature sampling component 32 during use.

[0151] According to some embodiments of the present application, with reference to Figure 3 、 Figure 4 and Figure 5 and further with reference to Figure 10 , Figure 10 FIG. 19 is an assembly schematic diagram of the bus component 22 and the temperature sampling component 32 provided by some embodiments of the present application. The battery module 20 of the battery 100 includes a bus component 22 and a plurality of battery cells 21, and the bus component 22 is electrically connected to the plurality of battery cells 21. The mounting bracket 321 is mounted on the bus component 22, and the mounting bracket 321 abuts against the battery cell 21.

[0152] Among them, the mounting bracket 321 abuts against the battery cell 21, so that the temperature detection component 322 accommodated in the mounting cavity 3212 of the mounting bracket 321 can obtain the temperature of the battery cell 21 through the mounting bracket 321. It should be noted that the mounting bracket 321 and the battery cell 21 can be in a directly abutting structure, that is, the mounting bracket 321 is in direct contact with the battery cell 21. Of course, the mounting bracket 321 and the battery cell 21 can also be in an indirectly abutting structure. For example, a heat-conducting pad can be further provided on the side of the mounting bracket 321 facing the battery cell 21 in the third direction Z, and the heat-conducting pad abuts against the battery cell 21, so that the mounting bracket 321 is in a structure of indirectly abutting against the battery cell 21 through the heat-conducting pad. Exemplarily, the material of the heat-conducting pad can be silicone, silicone grease or silicone rubber, etc.

[0153] It should be noted that in the embodiment where the mounting bracket 321 is provided with a heat conducting pad on the side facing the battery cell 21 in the third direction Z, such that the mounting bracket 321 indirectly abuts against the battery cell 21 through the heat conducting pad, a second avoidance hole may further be provided at the position of the insulating member 40 corresponding to the mounting bracket 321 in the third direction Z. The second avoidance hole penetrates through both sides of the insulating member 40 along the third direction Z, such that the insulating member 40 can avoid the mounting bracket 321, facilitating the mounting bracket 321 to abut against the battery cell 21 through the heat conducting pad.

[0154] In some embodiments, referring to Figure 4 as shown, the battery cell 21 may include a housing 212, an electrode assembly (not shown in the figure), and electrode terminals 211. The electrode assembly is accommodated in the housing 212, the electrode terminals 211 are provided on the housing 212, the electrode terminals 211 are electrically connected to the electrode assembly, and the electrode terminals 211 are connected to the bus bar member 22. The mounting bracket 321 directly or indirectly abuts against the housing 212.

[0155] Among them, the electrode terminals 211 function to output or input the electric 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 both of the two electrode terminals 211 are provided on the wall of the housing 212 on the side facing the sampling assembly 30 in the third direction Z. In the embodiment of the present application, the mounting bracket 321 directly or indirectly abuts against the wall of the housing 212 where the electrode terminals 211 are provided in the third direction Z.

[0156] The housing 212 can also be used to accommodate an electrolyte, such as an electrolyte solution. The housing 212 can be in various structural forms. The material of the housing 212 can also be various, such as copper, iron, aluminum, steel, aluminum alloy, etc. In some embodiments, the housing 212 may include a housing body and an end cap. An accommodation cavity is formed inside the housing body, and the housing body is a hollow structure with one end open. The end cap covers the open end of the housing body and forms a sealed connection to form a sealed space for accommodating the electrode assembly and the electrolyte.

[0157] Optionally, the wall of the housing 212 on the side facing the sampling assembly 30 in the third direction Z can be the end cap, or can be the bottom wall of the housing body opposite to the end cap in the third direction Z. That is to say, the electrode terminals 211 can be provided on the end cap of the housing 212, or can be provided on the bottom wall of the housing body opposite to the end cap in the third direction Z.

[0158] It should be noted that the electrode assembly is a component in the battery cell 21 where an electrochemical reaction occurs. The structure of the electrode assembly can be various. For example, the electrode assembly can be a wound structure formed by winding a positive electrode sheet, a separator, and a negative electrode sheet, or a stacked structure formed by laminating a positive electrode sheet, a separator, and a negative electrode sheet. Similarly, the number of electrode assemblies accommodated in the housing 212 can be one or more.

[0159] Optionally, the structure of the mounting bracket 321 mounted on the current collecting component 22 can be various. For example, the mounting bracket 321 can be mounted on the current collecting component 22 through structures such as bonding, snap - fitting, or bolt - screwing.

[0160] In this embodiment, the battery 100 is further provided with a current collecting component 22, and the current collecting component 22 is electrically connected to the battery cell 21. By setting the mounting bracket 321 of the temperature sampling component 32 to be mounted on the current collecting component 22 and making the mounting bracket 321 abut against the battery cell 21, while the temperature sampling component 32 collects the temperature of the battery cell 21, it can also play a certain role in stabilizing the mounting bracket 321, so as to stabilize the temperature detection element 322, and is beneficial to reducing the difficulty of assembling the mounting bracket 321 of the temperature sampling component 32 into the interior of the battery 100.

[0161] According to some embodiments of the present application, referring to Figure 10 as shown, the mounting bracket 321 is snap - fitted with the current collecting component 22.

[0162] Of course, in other embodiments, the connection structure between the mounting bracket 321 and the current collecting component 22 can also be bonding, bolt - screwing, etc.

[0163] In this embodiment, by setting the mounting bracket 321 to be snap - fitted on the current collecting component 22, on the one hand, it can reduce the assembly difficulty between the mounting bracket 321 and the current collecting component 22, without introducing other more complex structures or components to achieve the assembly between the mounting bracket 321 and the current collecting component 22, which is beneficial to improving the assembly efficiency between the temperature sampling component 32 and the current collecting component 22. On the other hand, it can achieve a detachable connection between the mounting bracket 321 and the current collecting component 22, thus facilitating the maintenance or replacement of the temperature sampling component 32 during later use, and is beneficial to reducing the later maintenance difficulty and maintenance cost of the temperature sampling component 32.

[0164] In some embodiments, referring to Figure 6 、 Figure 7 and Figure 10 as shown, the mounting bracket 321 is provided with a card slot 3213, and a part of the current collecting component 22 is stuck in the card slot 3213.

[0165] It should be noted that in other embodiments, the clamping structure between the mounting bracket 321 and the busbar component 22 can also be other structures. For example, a clamping groove 3213 is provided on the busbar component 22. Correspondingly, at least a part of the mounting bracket 321 is clamped in the clamping groove 3213.

[0166] In this embodiment, by providing the clamping groove 3213 on the mounting bracket 321 and clamping a part of the busbar component 22 in the clamping groove 3213, the clamping and assembling between the mounting bracket 321 and the busbar component 22 are realized. The structure is simple and the assembling is convenient.

[0167] According to some embodiments of the present application, please continue to refer to Figure 6 、 Figure 7 and Figure 10 As shown, a clamping groove 3213 is provided on the surface of one side of the mounting bracket 321 in the first direction X. The clamping groove 3213 runs through both ends of the mounting bracket 321 along the second direction Y. An opening 3211 is formed at least at one end of the mounting cavity 3212 along the second direction Y. The second direction Y is perpendicular to the first direction X.

[0168] Among them, the clamping groove 3213 runs through both ends of the mounting bracket 321 along the second direction Y, that is, the clamping groove 3213 is a through groove provided on the surface of one side of the mounting bracket 321 in the first direction X and extending along the second direction Y, so that the busbar component 22 can be clamped into the clamping groove 3213 from the first direction X and can also be inserted into the clamping groove 3213 from the second direction Y.

[0169] In this embodiment, by providing the clamping groove 3213 on the surface of one side of the mounting bracket 321 in the first direction X and the clamping groove 3213 running through both ends of the mounting bracket 321 along the second direction Y, on the one hand, the difficulty of machining and forming the clamping groove 3213 on the mounting bracket 321 can be reduced, so as to reduce the manufacturing difficulty of the mounting bracket 321. On the other hand, the difficulty of clamping a part of the busbar component 22 in the clamping groove 3213 can be further reduced, so as to reduce the assembling difficulty between the busbar component 22 and the mounting bracket 321, thereby effectively improving the production efficiency of the battery 100. In addition, by forming the opening 3211 of the mounting cavity 3212 at least at one end of the mounting bracket 321 in the second direction Y, it is beneficial to reduce the interference between the opening 3211 and the clamping groove 3213, and can reduce the interference between the busbar component 22 and the temperature detection component 322.

[0170] According to some embodiments of the present application, refer to Figure 6 、 Figure 7 and Figure 10 , and please further refer to Figure 11 , Figure 11Schematic diagram of the busbar component 22 provided by some embodiments of the present application. A notch 221 is provided at one end of the busbar component 22 in the second direction Y. The notch 221 penetrates both sides of the busbar component 22 along the third direction Z. The mounting bracket 321 is inserted into the notch 221 along the second direction Y, and a part of the busbar component 22 is stuck in the card slot 3213. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other in pairs.

[0171] Among them, the third direction Z is also the thickness direction of the busbar component 22. The notch 221 penetrates both sides of the busbar component 22 along the third direction Z, that is, the notch 221 penetrates the surfaces on both sides of the busbar component 22 in its thickness direction.

[0172] Exemplarily, the notch 221 is provided at one end of the busbar component 22 in the second direction Y, and the projection of the notch 221 in the third direction Z is in a "U" shape.

[0173] The mounting bracket 321 is inserted into the notch 221 along the second direction Y, and a part of the busbar component 22 is stuck in the card slot 3213. That is to say, a part of the mounting bracket 321 is located in the notch 221 in the third direction Z. Correspondingly, a part of the area of the busbar component 22 forming the notch 221 is stuck in the card slot 3213 of the mounting bracket 321. That is to say, a part of the wall surface of the notch 221 of the busbar component 22 is located in the card slot 3213, and in the third direction Z, parts of the mounting bracket 321 are located on both sides of the busbar component 22 respectively.

[0174] In this embodiment, a notch 221 is provided at one end of the busbar component 22 in the second direction Y, and the notch 221 is a structure that penetrates both sides of the busbar component 22 in the third direction Z, so that while the mounting bracket 321 is inserted into the notch 221 of the busbar component 22 along the second direction Y, a part of the busbar component 22 can also be stuck in the card slot 3213 of the mounting bracket 321. That is to say, a structure can be realized in which a part of the busbar component 22 is inserted into the card slot 3213 from one end of the card slot 3213 in the second direction Y. The battery 100 adopting this structure can improve the reliability and stability of the mounting bracket 321 of the temperature sampling component 32 assembled to the busbar component 22, and the notch 221 of the busbar component 22 can also play a certain role in positioning and limiting the mounting bracket 321 of the temperature sampling component 32, which is beneficial to improving the assembly quality of the mounting bracket 321 of the temperature sampling component 32 and the busbar component 22.

[0175] In some embodiments, as shown in Figure 6 、 Figure 7 and Figure 10 shown, card slots 3213 are provided on the surfaces on both sides of the mounting bracket 321 in the first direction X.

[0176] Among them, clamping grooves 3213 are provided on the surfaces of both sides of the mounting bracket 321 in the first direction X, so that the two opposite wall surfaces of the notch 221 of the current collecting component 22 in the first direction X can be respectively clamped in the two clamping grooves 3213 of the mounting bracket 321.

[0177] In this embodiment, by providing clamping grooves 3213 on both sides of the mounting bracket 321 along the first direction X, the two opposite sides of the current collecting component 22 at the notch 221 in the first direction X can be respectively clamped in the two clamping grooves 3213 on both sides of the mounting bracket 321 in the first direction X, so that the reliability and stability of the mounting bracket 321 of the temperature sampling assembly 32 assembled to the current collecting component 22 can be further improved, which is beneficial to further improving the assembly quality of the mounting bracket 321 of the temperature sampling assembly 32 and the current collecting component 22.

[0178] According to some embodiments of the present application, please continue to refer to Figure 6 、 Figure 7 and Figure 10 As shown, a pressing portion 3214 protrudes from the bottom surface of the clamping groove 3213. The pressing portion 3214 is located in the notch 221, and the pressing portion 3214 presses against the portion of the current collecting component 22 clamped in the clamping groove 3213 along the first direction X.

[0179] Among them, the pressing portion 3214 presses against the portion of the current collecting component 22 clamped in the clamping groove 3213 along the first direction X, that is, the portion of the current collecting component 22 located in the clamping groove 3213 and the pressing portion 3214 press against each other in the first direction X, so that the portion of the current collecting component 22 located in the clamping groove 3213 and the pressing portion 3214 are in an interference fit structure in the first direction X.

[0180] Optionally, in the embodiment where the pressing portion 3214 protrudes from the bottom surface of the clamping groove 3213, the number of the pressing portions 3214 protruding from the bottom surface of the clamping groove 3213 can be one or more. Exemplarily, in Figure 6 and Figure 7 only one pressing portion 3214 protrudes from the bottom surface of the clamping groove 3213. Of course, if a plurality of pressing portions 3214 protrude from the bottom surface of the clamping groove 3213, the plurality of pressing portions 3214 are arranged at intervals along the second direction Y.

[0181] In this embodiment, a pressing portion 3214 is protruded on the bottom surface of the slot 3213, and the pressing portion 3214 presses against the portion of the confluence component 22 stuck in the slot 3213 along the first direction X, so that the portion of the confluence component 22 stuck in the slot 3213 and the mounting frame 321 can be interference fit, which is beneficial to further improve the firmness of the confluence component 22 stuck in the slot 3213 of the mounting frame 321, so as to further improve the stability of the mounting frame 321 of the temperature sampling assembly 32 assembled to the confluence component 22.

[0182] According to some embodiments of the present application, referring to Figure 6 , Figure 7 and Figure 10 , and please refer to Figure 12 , Figure 12 for Figure 6 The partial enlarged view of the temperature sampling assembly 32 at A is shown. The pressing portion 3214 has a pressing surface 3214a pressed against the converging component 22 in the first direction X; wherein the pressing portion 3214 also has two guiding inclined surfaces 3214b, which are respectively located on both sides of the pressing surface 3214a in the second direction Y, and the guiding inclined surfaces 3214b connect the pressing surface 3214a and the bottom surface of the slot 3213.

[0183] Among them, the pressing surface 3214a of the pressing portion 3214 is the surface of the pressing portion 3214 on the side away from the bottom surface of the slot 3213 in the first direction X, and the pressing surface 3214a of the pressing portion 3214 is the surface of the pressing portion 3214 that presses against the conduit component 22 in the first direction X.

[0184] The two guide slopes 3214b are respectively located on both sides of the pressing surface 3214a in the second direction Y, and the guide slopes 3214b connect the pressing surface 3214a and the bottom surface of the slot 3213. That is to say, one guide slope 3214b, the pressing surface 3214a and the other guide slope 3214b are arranged in sequence and connected along the second direction Y, and the end of the guide slope 3214b away from the pressing surface 3214a in the second direction Y is connected to the bottom surface of the slot 3213.

[0185] In this embodiment, the pressing portion 3214 has a pressing surface 3214a that presses against the bus bar component 22 in the first direction X, and the pressing portion 3214 is further provided with guiding inclined surfaces 3214b that are respectively located on both sides of the pressing surface 3214a in the second direction Y, such that the guiding inclined surfaces 3214b can connect the pressing surface 3214a and the bottom surface of the card slot 3213. Thus, during the process of inserting the bus bar component 22 into the card slot 3213 in the second direction Y, the guiding inclined surfaces 3214b can play a guiding role for the bus bar component 22, so that the guiding inclined surfaces 3214b can guide the bus bar component 22 to a position where it presses against the pressing surface 3214a. Furthermore, it can alleviate the phenomenon that the pressing portion 3214 and the bus bar component 22 are stuck to each other, which is beneficial to reducing the difficulty of the pressing between the pressing portion 3214 and the bus bar component 22, and thus reducing the assembly difficulty between the bus bar component 22 and the mounting bracket 321.

[0186] Of course, the structure of the mounting bracket 321 is not limited to this. In some embodiments, referring to Figure 13 and Figure 14 , Figure 13 FIG. Figure 14 is a schematic structural diagram of the mounting bracket 321 of the temperature sampling component 32 provided in some other embodiments of the present application.

[0187] FIG.

[0188] is a front view of the mounting bracket 321 of the temperature sampling component 32 provided in some other embodiments of the present application in the second direction Y. The mounting bracket 321 can also be other structures. For example, the card slot 3213 has two relatively arranged slot side surfaces in the third direction Z, and at least one slot side surface of the card slot 3213 protrudes with a pressing portion 3214. Along the third direction Z, the pressing portion 3214 is located on one side of the bus bar component 22, and the pressing portion 3214 presses against the part of the bus bar component 22 that is stuck in the card slot 3213.

[0189] In this embodiment, by protruding a pressing portion 3214 on at least one side surface of the card slot 3213, and the pressing portion 3214 presses against one side of the current collecting component 22 in the third direction Z, a structure in which the portion of the current collecting component 22 stuck in the card slot 3213 and the mounting bracket 321 are in an interference fit can be realized. Furthermore, it is beneficial to further improve the firmness of the current collecting component 22 stuck in the card slot 3213 of the mounting bracket 321, so as to further improve the stability of the mounting bracket 321 of the temperature sampling assembly 32 assembled to the current collecting component 22.

[0190] In some embodiments, please continue to refer to Figure 13 and Figure 14 As shown, pressing portions 3214 are protruded on both side surfaces of the card slot 3213. Correspondingly, the pressing portions 3214 protruded on the two side surfaces of the card slot 3213 respectively press against both sides of the portion of the current collecting component 22 stuck in the card slot 3213 in the third direction Z.

[0191] Optionally, the number of the pressing portions 3214 provided on each side surface of the card slot 3213 can be one or more. Exemplarily, in Figure 13 each side surface of the card slot 3213 protrudes two pressing portions 3214. The two pressing portions 3214 are arranged at intervals in the second direction Y, and the pressing portions 3214 protruded on the two side surfaces of the card slot 3213 are all structures arranged in one-to-one correspondence in the third direction Z. Of course, in other embodiments, the number of the pressing portions 3214 protruded on each side surface of the card slot 3213 can also be three, four, five or six, etc.

[0192] In this embodiment, by providing the pressing portions 3214 on both side surfaces of the card slot 3213, both sides of the portion of the current collecting component 22 stuck in the card slot 3213 in the third direction Z can press against the pressing portions 3214, which is beneficial to further improve the firmness of the current collecting component 22 stuck in the card slot 3213 of the mounting bracket 321.

[0193] According to some embodiments of the present application, the present application also provides an electrical device, which includes the battery 100 of any of the above solutions, and the battery 100 is used to provide electrical energy for the electrical device.

[0194] Among them, the electrical device can be any of the aforementioned devices or systems using the battery 100.

[0195] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0196] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A battery, characterized in that: include: Battery cells; A wiring harness assembly for electrical connection with a battery management system; as well as A temperature sampling assembly, comprising a mounting frame and a temperature detection member, wherein a mounting cavity having an opening is formed inside the mounting frame, the temperature detection member is accommodated in the mounting cavity, the temperature detection member is electrically connected to the wiring harness assembly, and the temperature detection member is configured to detect the temperature of the battery cell; Among them, the temperature sampling assembly also includes a connecting wire, one end of which extends from the opening into the installation cavity and is connected to the temperature detection component, and the other end is located outside the installation cavity and is connected to the wiring harness assembly to electrically connect the temperature detection component and the wiring harness assembly.

2. The battery according to claim 1, characterized in that The temperature sampling assembly also includes a sealant, which is filled in the installation cavity and covers the temperature detection component.

3. The battery according to claim 2, characterized in that The connecting wire is connected to the temperature detecting element by welding to form a welding mark, and the sealing glue covers the welding mark.

4. The battery according to claim 1, characterized in that The installation cavity is formed with the openings at both opposite ends of the installation frame.

5. The battery according to claim 1, characterized in that The temperature sampling assembly includes two connecting wires, the polarities of the two connecting wires are opposite, and the two connecting wires are respectively connected to the positive electrode and the negative electrode of the temperature detection element; Wherein, the connecting wire comprises a conductor and an insulating shell, wherein the insulating shell is coated on the outside of the conductor, and the insulating shells of the two connecting wires are connected to each other and form a weak structure at the connection point.

6. The battery according to claim 5, characterized in that The insulating shells of the two connecting wires define a groove together, and the bottom wall of the groove forms the weak structure.

7. The battery according to claim 6, characterized in that The two connecting lines are arranged side by side, and the arrangement direction of the two connecting lines is located in a plane jointly defined by the first direction and the second direction. The two connecting lines are formed with grooves on both sides in the third direction. The two grooves are correspondingly arranged along the third direction, and the weak structure is formed between the bottom surfaces of the two grooves. The first direction, the second direction and the third direction are perpendicular to each other.

8. The battery according to claim 5, characterized in that The insulating shells of the two connecting wires are integrally formed.

9. The battery according to claim 5, characterized in that The insulating shells of the two connecting wires are separately arranged, and the insulating shells of the two connecting wires are bonded and connected.

10. The battery according to claim 1, characterized in that At least a portion of the connecting line is bent to form a bent section between two ends of the connecting line.

11. The battery according to any one of claims 1 to 10, characterized in that The battery further includes a busbar component and a plurality of the battery cells, wherein the busbar component electrically connects the plurality of the battery cells; Wherein, the mounting frame is mounted on the current collecting component, and the mounting frame abuts against the battery cell.

12. The battery according to claim 11, characterized in that The mounting frame is clamped with the converging component.

13. The battery according to claim 12, characterized in that The mounting frame is provided with a slot, and part of the converging component is locked in the slot.

14. The battery according to claim 13, characterized in that The mounting frame is provided with the card slot on the surface of one side in the first direction, the card slot passes through both ends of the mounting frame along the second direction, the mounting cavity is formed with the opening at at least one end of the mounting frame along the second direction, and the second direction is perpendicular to the first direction.

15. The battery according to claim 14, characterized in that A notch is provided at one end of the confluence component in the second direction, and the notch penetrates both sides of the confluence component along the third direction. The mounting frame is inserted into the notch along the second direction, and part of the confluence component is clamped in the clamping groove. The first direction, the second direction and the third direction are perpendicular to each other.

16. The battery according to claim 15, characterized in that The surfaces of the mounting frame on both sides in the first direction are provided with the card slots.

17. The battery according to claim 15, characterized in that A pressing portion is convexly disposed on the bottom surface of the slot, the pressing portion is located in the notch, and the pressing portion presses against the portion of the flow collecting component stuck in the slot along the first direction.

18. The battery according to claim 17, characterized in that The pressing portion has a pressing surface pressing against the flow collecting component in the first direction; The pressing portion further has two guiding inclined surfaces, which are respectively located on both sides of the pressing surface in the second direction, and the guiding inclined surfaces connect the pressing surface and the bottom surface of the slot.

19. The battery according to claim 15, characterized in that The card slot has two slot side surfaces that are arranged opposite to each other in the third direction, and a pressing portion is convexly provided on at least one slot side surface of the card slot. Along the third direction, the pressing portion is located on one side of the conduit component, and the pressing portion presses against a portion of the conduit component that is stuck in the card slot.

20. The battery according to claim 19, characterized in that The pressing parts are convexly disposed on the two groove side surfaces of the clamping groove.

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

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