Battery device and electric device

Abstract

The utility model provides a battery device and a power utilization device. The battery device comprises a box body assembly, a battery monomer assembly and a temperature detection assembly, the battery monomer assembly and the temperature detection assembly are arranged in the box body assembly; the temperature detection assembly comprises a shell and a plurality of detection pieces. The shell is provided with an accommodating space and an opening for communicating the outside of the shell with the accommodating space; the multiple detection pieces are arranged in the containing space and used for detecting the temperature of airflow entering the containing space from the opening. Through the above arrangement, the plurality of detection members can be integrated on the housing for installation, which is beneficial for improving the installation convenience of the temperature detection assembly.

Description

Technical Field

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

[0002] To facilitate monitoring of the temperature of battery cell assemblies by the battery management system, battery devices are typically equipped with multiple temperature sensors. However, because these temperature sensors are independent of one another, they must be assembled with the battery cell assemblies multiple times, making their installation inconvenient and significantly impacting battery device assembly efficiency. Utility Model Content

[0003] The present application provides a battery device and an electrical device, aiming to solve the technical problem of low installation convenience of multiple temperature sensors in existing battery devices.

[0004] In order to solve the above problems, the present application provides a battery device on the one hand, which includes: a box assembly, a battery cell assembly and a temperature detection assembly; the battery cell assembly and the temperature detection assembly are both arranged in the box assembly; the temperature detection assembly includes: a shell and a plurality of detection components; the shell has a storage space and an opening connecting the outside of the shell and the storage space; the plurality of detection components are all arranged in the storage space, and the detection components are used to detect the temperature of the airflow entering the storage space from the opening.

[0005] In the above solution, by providing multiple detection elements within the housing's accommodation space, and by detecting the temperature of the airflow entering the accommodation space from the housing's opening, the temperature detection assembly can utilize multiple detection elements to achieve temperature detection. Furthermore, by integrating multiple detection elements into the housing for installation, the installation convenience of the temperature detection assembly can be improved.

[0006] In one embodiment, the detection component includes: a protective shell and a thermal element; the protective shell is arranged in the accommodating space, and the thermal element is arranged in the protective shell and is used to detect the temperature of the airflow entering the accommodating space from the opening.

[0007] Therefore, not only can the temperature of the airflow entering the accommodating space be detected by the thermosensitive element, but the protective shell can also be used to isolate the external environment and the thermosensitive element to improve the waterproof and dustproof performance of the detection element.

[0008] In one embodiment, the battery device further includes: a control component, and the temperature detection component further includes: an electrical connector; one end of the electrical connector is provided on the shell and is electrically connected to the plurality of detection components; and the other end of the electrical connector is electrically connected to the control component.

[0009] Thus, the multiple detection components can be electrically connected to the control component using the electrical connector, so that the multiple detection components can transmit electrical signals to the control component to realize the temperature detection function of the temperature detection component.

[0010] In one embodiment, the electrical connector includes: a connecting wire and a connecting head; one end of the connecting wire is provided on the shell and is electrically connected to the plurality of detecting parts; the connecting head is connected to the other end of the connecting wire and is detachably plugged into and mated with the control component.

[0011] Thus, multiple detection components can be detachably electrically connected to the control component using connecting wires and connecting heads. Compared with the solution of directly electrically connecting the connecting wires to the control component, the method of detachably electrically connecting the connecting head to the control component is simpler.

[0012] In one embodiment, the connecting line includes: a plurality of conductive wires and an insulating layer wrapped around the plurality of conductive wires; the number of the conductive wires is the same as the number of the detection parts, and the plurality of conductive wires are electrically connected to the plurality of detection parts in a one-to-one correspondence, and are all electrically connected to the connector.

[0013] Thus, a plurality of conductive wires can be integrated into the insulating layer to improve the integrity of the connecting wire, thereby facilitating installation of the connecting wire.

[0014] In one embodiment, one end of the wire is passed through the shell and extends into the accommodating space to be electrically connected to the detection component; a packaging component is provided on the outer surface of the shell, and the packaging component is arranged around the end of the wire passing through the shell and blocks the gap between the wire and the shell.

[0015] Therefore, the connection between the wire and the housing can be encapsulated by using the encapsulation component to improve the waterproof and dustproof performance of the temperature detection component.

[0016] In one embodiment, the electrical connector further includes: a connecting buckle; the connecting buckle is provided on the connecting head, and when the connecting head is electrically connected to the control component, the connecting buckle is used to connect the control component to fix the connecting head on the control component.

[0017] Thus, the connecting buckle can be used to connect with the control component to fix the connector on the control component, thereby improving the stability of the electrical connection between the connector and the control component.

[0018] In one embodiment, the shell is detachably connected to the battery cell assembly or the box assembly.

[0019] Thus, the detachable connection between the housing and the battery cell assembly or the box assembly can be utilized to improve the convenience of assembling and disassembling the temperature detection assembly.

[0020] In one embodiment, the housing includes: a connecting portion and a receiving portion; the connecting portion is connected to the receiving portion and is detachably connected to the battery cell assembly or the box assembly; the receiving portion has the receiving space and the opening.

[0021] Thus, the shell can be divided into a connecting portion that is detachably connected to the battery cell assembly or the box assembly, and a receiving portion for installing multiple detection assemblies, so that the connecting portion and the receiving portion can each realize their corresponding functions.

[0022] The present application also provides an electrical device, which includes: the above-mentioned battery device.

[0023] Thus, the battery device can be used to supply power to the electrical device to realize the corresponding function of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0025] Figure 1 is a schematic structural diagram of an electrical device provided in an embodiment of the present application;

[0026] Figure 2 yes Figure 1 Schematic diagram of the structure of the battery device;

[0027] Figure 3 yes Figure 2 Schematic diagram of the structure of the temperature detection component;

[0028] Figure 4 yes Figure 3 Schematic diagram of the connection structure between the middle shell and multiple detection components;

[0029] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the middle housing and multiple detection components along the V-V direction;

[0030] Figure 6 yes Figure 3 A schematic diagram of the structure of the temperature detection component from another perspective;

[0031] Figure 7 yes Figure 6 Schematic diagram of the connection structure of the middle housing, multiple detection components and some electrical connectors;

[0032] Figure 8 yes Figure 6 Schematic diagram of the structure of the middle part electrical connector;

[0033] Figure 9 yes Figure 6 Schematic diagram of the connection structure between the middle shell and multiple detection components.

[0034] The reference numerals are as follows:

[0035] Electrical device 1, battery device 10, controller 20, motor 30, battery cell assembly 100, box assembly 200, first box 210, second box 220, temperature detection assembly 300, shell 310, connecting portion 311, accommodating portion 312, accommodating space 3101, opening 3102, through hole 3103, connecting hole 3104, detection part 320, protective shell 321, thermistor 322, conductive structure 323, electrical connector 330, connecting wire 331, wire 3311, insulating layer 3312, connector 332, connector buckle 333, packaging part 340. DETAILED DESCRIPTION

[0036] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions.

[0038] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0039] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0041] In the description of the embodiments of the present application, the technical terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "circumferential", "height direction", "first direction", "second direction", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0042] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0044] In some technical solutions, to better monitor the temperature of a battery cell assembly, the battery cell assembly is generally divided into multiple zones, and multiple temperature sensors are installed in each zone to detect the temperature of the zone. However, because the multiple temperature sensors are independent of each other, they need to be assembled with the battery cell assembly multiple times, which reduces the installation convenience of multiple temperature sensors.

[0045] To address the above technical issues, the temperature detection assembly provided in this application is configured with multiple detection elements within the housing's accommodating space. These detection elements can be used to detect the temperature of the airflow entering the accommodating space from the housing's opening, allowing the temperature detection assembly to utilize multiple detection elements to achieve temperature detection. Furthermore, by integrating multiple detection elements into the housing and then utilizing the housing to mount them on the battery cell assembly or box assembly, the installation convenience of the temperature detection assembly can be improved.

[0046] The battery device involved in the embodiments of the present application can be used in an electrical device that uses the battery device as a power source. The electrical device involved in the embodiments of the present application may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, an electric car, a vehicle, a ship, a spacecraft, and the like. Among them, electric toys may include fixed or mobile electric toys, for example, game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like. Spacecraft may include airplanes, rockets, space shuttles, and spacecraft, and the like. According to the power source, a vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and a new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, and the like. According to the drive mode, a vehicle may be a front-wheel drive vehicle, a rear-wheel drive vehicle, or a four-wheel drive vehicle.

[0047] Furthermore, the electrical device may include: a device body and a battery device involved in the context. The device body is the main frame structure of the electrical device. For example, when the electrical device is a vehicle, the device body is the vehicle body. When the electrical device is a ship, the device body is the hull. Of course, in some embodiments, the battery device involved in the embodiments of the present application can also be used in an energy storage system that uses a battery device as an energy storage element, and the energy storage system may include an energy storage container, an energy storage cabinet, etc. The following is only an example of the electrical device being a vehicle.

[0048] See also Figures 1 to 2 , Figure 1 is a structural diagram of the electric device 1 provided in an embodiment of the present application, Figure 2 yes Figure 1 Schematic diagram of the structure of the battery device 10.

[0049] like Figure 1As shown, the electric device 1 provided in the embodiment of the present application can be a vehicle, and a battery device 10 is provided inside the electric device 1. The battery device 10 can be provided at the bottom, head or tail of the electric device 1, and the battery device 10 can serve as an operating power source for the electric device 1 to supply power to the electric device 1. For example, the electric device 1 can also include a controller 20 and a motor 30. The controller 20 is used to control the battery device 10 to supply power to the motor 30 to meet the working power requirements of the electric device 1 during startup, navigation and driving. Of course, the battery device 10 can not only serve as an operating power source for the electric device 1, but also as a driving power source for the electric device 1, to replace or partially replace fuel or natural gas to provide driving power for the electric device 1.

[0050] The battery device 10 can be used to provide power to the power-consuming device 1, and the battery device 10 may include: a battery cell assembly 100, a box assembly 200, and a temperature detection assembly 300. Figure 2 As shown, the battery cell assembly 100 can be disposed within the housing assembly 200 and can be used to provide power to the electrical device 1. The housing assembly 200 can be connected to the main body of the electrical device 1, so that the battery assembly 10 can be fixed to the electrical device 1. The temperature detection assembly 300 can be disposed within the housing assembly 200 and can be used to detect the temperature of the battery cell assembly 100.

[0051] The battery cell assembly 100 may include at least one battery cell, and the battery cell may be used to store or release electrical energy to power the electrical device 1 when needed. The battery cell may be a secondary battery, which refers to a battery cell that can be recharged to activate the active material after discharge and continue to be used. Battery cells may include, but are not limited to, lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, and the like.

[0052] Furthermore, when there are multiple battery cells, the multiple battery cells can be electrically connected in at least one of series, parallel, and hybrid connection via a busbar assembly, and can be fixed in the box assembly 200 in a corresponding manner. For example, the multiple battery cells can be connected together by bundling, and then placed as a whole in the box assembly 200 for fixation.

[0053] The box assembly 200 can be used to install and protect the battery cell assembly 100, and the box assembly 200 can include: a first box 210 and a second box 220. Figure 2 As shown, the first box body 210 can be connected to the second box body 220 and can be enclosed together with the second box body 220 to form an installation space 201, and the battery cell assembly 100 and the temperature detection assembly 300 can both be arranged in the installation space 201.

[0054] Furthermore, at least one of the first box 210 and the second box 220 can be connected to the device body of the electrical device 1, so that the box assembly 200 can be fixed to the device body of the electrical device 1. For example, the first box 210 and the device body of the electrical device 1 can be connected by one or more connection methods such as welding, bonding, and screwing.

[0055] It is understandable that Figure 2 Only one temperature detection component 300 is shown in the figure, but the number of temperature detection components 300 can also be multiple, and multiple temperature detection components 300 can be arranged at different positions of the battery cell assembly 100 to detect the temperature of different areas of the battery cell assembly 100.

[0056] Of course, the temperature detection component 300 provided in the embodiment of the present application is not limited to detecting the temperature of the battery cell assembly 100, and can also be applied to other devices with temperature detection requirements. The following only uses the temperature detection component 300 detecting the temperature of the battery cell assembly 100 as an example for explanation.

[0057] See also Figures 3 to 5 , Figure 3 yes Figure 2 The structural diagram of the temperature detection component 300 is shown in FIG. Figure 4 yes Figure 3 Schematic diagram of the connection structure between the middle housing 310 and the multiple detection components 320, Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the middle housing 310 and the multiple detection components 320 along the V-V direction.

[0058] The temperature detection assembly 300 may be disposed in the installation space 201 and may be used to detect the temperature of the battery cell assembly 100. Figures 3 and 4 As shown, the temperature detection assembly 300 may include: a housing 310 and a plurality of detection elements 320. The housing 310 has a receiving space 3101 and an opening 3102 connecting the exterior of the housing 310 and the receiving space 3101. The plurality of detection elements 320 may be disposed within the receiving space 3101, and the detection elements 320 may be used to detect the temperature of the airflow entering the receiving space 3101.

[0059] The housing 310 can be connected to an external structure such as the battery cell assembly 100 or the box assembly 200 to be fixed within the installation space 201. For example, the housing 310 can be connected to the current collector of the battery cell assembly 100, so that the detection member 320 can be positioned adjacent to the battery cell assembly 100, thereby facilitating the temperature detection assembly 300 to detect the temperature of the battery cell assembly 100.

[0060] Furthermore, the shell 310 can be made of plastic and can be made in one piece through an injection molding process, so that the shell 310 can simultaneously form the accommodating space 3101 and the opening 3102 during the injection molding process, which not only reduces the difficulty of making the shell 310, but also reduces the weight of the shell 310.

[0061] In some embodiments, the accommodating space 3101 and the opening 3102 may also be formed by milling after the shell 310 is formed. In addition, the material of the shell 310 is not limited to plastic, and its specific material may also be selected according to design requirements.

[0062] Multiple detection members 320 can be disposed within the accommodation space 3101 , and each of the detection members 320 can be a temperature sensor. When the hot air flow generated by the battery cell assembly 100 enters the accommodation space 3101 through the opening 3102 , the detection members 320 can detect the temperature of the hot air flow, thereby indirectly detecting the temperature of the battery cell assembly 100 .

[0063] Furthermore, the number of detection components 320 can be two, three, four or more, and can be selected according to design requirements, and multiple detection components 320 can serve as backup for each other, so that when one or several detection components 320 fail, the remaining detection components 320 can be used to detect the temperature of the airflow entering the accommodation space 3101, so as to improve the reliability of the temperature detection component 300.

[0064] In some embodiments, in addition to serving as backup for each other, the temperature data detected by the multiple detection elements 320 can also be used for reference, correction, or calculation of average temperature, etc., to enhance the functional diversity of the temperature detection component 300.

[0065] In the above solution, multiple detection members 320 are provided within the accommodation space 3101 of the housing 310, and the detection members 320 can be used to detect the temperature of the airflow entering the accommodation space 3101 from the opening 3102 of the housing 310. This allows the temperature detection assembly 300 to utilize multiple detection members 320 to achieve the temperature detection function. At the same time, by integrating multiple detection members 320 within the accommodation space 3101 of the housing 310 and then utilizing the housing 310 to mount the battery cell assembly 100 or the box assembly 200, the installation convenience of the temperature detection assembly 300 can be improved, thereby enhancing the assembly efficiency of the battery device 10.

[0066] In some embodiments, multiple detection components 320 are integrated on the shell 310 and installed uniformly with the battery cell assembly 100 or the box assembly 200. Compared with the solution in which multiple temperature sensors are set independently, the temperature detection component not only occupies less space on the battery cell assembly 100 or the box assembly 200, but also can omit the structural components required to fix multiple temperature sensors separately, thereby simplifying the structure of the battery device 10.

[0067] In order to realize the temperature detection function of the temperature detection component 300, the detection member 320 may include: a protective shell 321 and a thermal element 322. Figures 4 and 5 As shown, the protective shell 321 can be disposed in the accommodating space 3101 , and the thermal element 322 can be disposed in the protective shell 321 and can be used to detect the temperature of the airflow entering the accommodating space 3101 from the opening 3102 .

[0068] The protective shell 321 can be connected to the housing 310 to be fixed in the accommodating space 3101. The protective shell 321 can have a cavity for accommodating the thermal element 322, and the protective shell 321 can isolate the thermal element 322 from the external environment to prevent dust or moisture in the external environment from affecting the thermal element 322.

[0069] The thermistor 322 can be used to detect the temperature of the airflow entering the receiving space 3101 through the opening 3102. The resistance value of the thermistor 322 can change with the change in the airflow temperature, so that the thermistor 322 can convert the temperature change of the airflow into an electrical signal for transmission, thereby realizing the temperature detection function of the detection element 320.

[0070] In some embodiments, to improve the detection sensitivity of the thermistor 322, the protective shell 321 may further include a heat conducting portion. The heat conducting portion may have a higher thermal conductivity than the protective shell 321, and a portion of the heat conducting portion may be in contact with the thermistor 322, while another portion may be exposed outside the protective shell 321. This allows the heat energy carried by the airflow to be transferred to the thermistor 322 more quickly, thereby reducing the detection delay caused by heat transfer.

[0071] In the above scheme, not only can the thermistor 322 be used to detect the temperature of the airflow entering the accommodating space 3101 from the opening 3102, but the protective shell 321 can also be used to isolate the external environment and the thermistor 322 to prevent dust or water vapor in the external environment from affecting the thermistor 322.

[0072] In some embodiments, in addition to being configured as in the above-mentioned embodiment, the detection element 320 can also be composed of other components capable of temperature detection. It is only necessary for the detection element 320 to be able to detect the temperature of the airflow entering the accommodation space 3101. This embodiment will not be listed one by one here.

[0073] See also Figures 6 to 8 , Figure 6 yes Figure 3 A schematic structural diagram of the temperature detection component 300 from another perspective, Figure 7 yes Figure 6 Schematic diagram of the connection structure of the middle housing 310, multiple detection components 320 and some electrical connectors 330, Figure 8 yes Figure 6 Schematic diagram of the structure of the middle electrical connector 330.

[0074] In order to achieve the transmission of electrical signals, the battery device 10 may further include: a control component, and the temperature detection component 300 may further include: an electrical connector 330. Figure 6 As shown, one end of the electrical connector 330 may be disposed on the housing 310 and may be electrically connected to the plurality of detection elements 320 , and the other end of the electrical connector 330 may be electrically connected to the control assembly.

[0075] One end of the electrical connector 330 may be inserted into the housing 310 and may extend into the receiving space 3101 of the housing 310 to be electrically connected to the plurality of detection elements 320. For example, the protective shell 321 may be provided with a conductive structure 323 (such as Figure 5 As shown), a partial area of ​​the conductive structure 323 can also be exposed outside the protective shell 321 and can be electrically connected to one end of the electrical connector 330 located in the accommodating space 3101.

[0076] In some embodiments, the electrical connection between the electrical connector 330 and the detection element 320 can be implemented in a variety of ways. For example, one end of the electrical connector 330 can be inserted through the protective shell 321, extending into the protective shell 321 to directly connect electrically to the thermistor 322. In other words, the electrical connection between the electrical connector 330 and the detection element 320 can be selected based on specific needs, and this embodiment will not be fully detailed here.

[0077] The other end of the electrical connector 330 can be electrically connected to the control component. The electrical signals generated by the multiple detection components 320 in response to changes in airflow temperature can be transmitted to the control component through the electrical connector 330 to detect the temperature of the battery cell assembly 100. The control component can specifically be a battery management unit of the battery cell assembly 100, and the control component can include: a circuit board and a controller integrated on the circuit board, etc.

[0078] In the above scheme, since one end of the electrical connector 330 is electrically connected to multiple detection components 320 and the other end is electrically connected to the control unit, multiple detection components 320 can transmit electrical signals to the control component through the electrical connector 330 to realize the temperature detection function of the temperature detection component.

[0079] In order to realize the electrical connection between the electrical connector 330 and the detection component 320 and the control unit, the electrical connector 330 may include: a connecting wire 331 and a connector 332. Figure 7 As shown, one end of the connecting wire 331 is provided on the housing 310 and can be electrically connected to the plurality of detection elements 320. The connector 332 can be connected to the other end of the connecting wire 331 and can be used to detachably plug and match with the control assembly.

[0080] One end of the connecting wire 331 can also be inserted through the housing 310 and extend into the accommodating space 3101 to electrically connect to the conductive structures 323 of the multiple detection elements 320. The connecting wire 331 can have multiple pathways that conduct to the connector 332, so that the electrical signals generated by the multiple detection elements 320 can be transmitted through different pathways, thereby maintaining the independence of the electrical signals transmitted by the multiple detection elements 320.

[0081] The connector 332 can be connected to the other end of the connecting wire 331, and the connector 332 can also be removably plugged into the control component and can transmit the electrical signals transmitted by the connecting wire 331 to the control component. The connector 332 can also have multiple pathways that conduct to the control component, and the pathways of the connector 332 can be arranged in a one-to-one correspondence with the pathways of the connecting wire 331, so that the electrical signals generated by the multiple detection elements 320 can be independently transmitted to the control component.

[0082] Furthermore, connector 332 can be a plug or a socket, and can be removably plugged into a plug-in structure integrated on a circuit board of the control component, and can be electrically connected to the control component simultaneously to achieve an electrical connection between the two. Of course, the electrical connection between connector 332 and the control component is not limited to this, and this embodiment will not be described in detail.

[0083] In the above scheme, multiple detection components 320 can be electrically connected to the control component using connecting wires 331 and connecting heads 332. Compared with the scheme in which the connecting wires 331 are directly electrically connected to the control component, the method of connecting to the control component using connecting heads 332 is simpler, which is conducive to improving the installation convenience of the temperature detection component 300.

[0084] In order to form multiple paths for multiple detection elements 320 to transmit electrical signals, the connecting line 331 may include: multiple wires 3311 and an insulating layer 3312 wrapped around the multiple wires 3311. Figure 7 As shown, the number of the wires 3311 is the same as the number of the detection elements 320 , and the multiple wires 3311 are electrically connected to the multiple detection elements 320 in a one-to-one correspondence, and are all electrically connected to the connector 332 .

[0085] The number of wires 3311 can be the same as the number of detection elements 320, and multiple wires 3311 and multiple detection elements 320 can be set in a one-to-one correspondence, that is, one wire 3311 is electrically connected to only one detection element 320, so that multiple wires 3311 can form multiple independent paths for transmitting the electrical signals generated by multiple detection elements 320, thereby maintaining the independence of the electrical signals transmitted by multiple detection elements 320.

[0086] The insulating layer 3312 can wrap around the plurality of wires 3311, thereby bundling the plurality of wires 3311 together to improve the integrity of the connecting wire 331. Furthermore, the insulating layer 3312 can protect the wires 3311 and electrically isolate the wires 3311 from the external environment, thereby reducing the probability of interference with the wires 3311 caused by the external environment.

[0087] In the above solution, by configuring the connecting wire 331 to include multiple wires 3311, the multiple wires 3311 can form multiple independent pathways to transmit the electrical signals generated by the multiple detection elements 320. Furthermore, by configuring the multiple wires 3311 to be wrapped with an insulating layer 3312, not only can the multiple wires 3311 be electrically isolated from the external environment, but the integrity of the connecting wire 331 can also be improved to avoid a cluttered wiring harness, thereby improving the installation convenience of the connecting wire 331.

[0088] To achieve electrical connection between the wire 3311 and the detection element 320, one end of the wire 3311 can be passed through the housing 310 and extend into the accommodating space 3101 to electrically connect with the detection element 320. An encapsulation member 340 can also be provided on the outer surface of the housing 310. The encapsulation member 340 can be disposed around one end of the wire 3311 passing through the housing 310 and can block the gap between the wire 3311 and the housing 310.

[0089] Since one end of the wire 3311 is passed through the housing 310, a through hole 3103 ( Figure 5 3103 ), and there is often a gap between the wire 3311 and the wall of the through hole 3103. The encapsulation member 340 can be disposed at the connection between the housing 310 and the wire 3311 to block the gap between the wire 3311 and the wall of the through hole 3103, thereby encapsulating the connection between the wire 3311 and the housing 310.

[0090] Furthermore, the shell 310 and the wire 3311 can be coated with packaging glue at the connection to form a packaging component 340, so that the packaging component 340 can also play the role of bonding the wire 3311 and the shell 310, so as to fix the end of the wire 3311 connected to the detection component 320 on the shell 310, thereby reducing the probability of the wire 3311 pulling the detection component 320 during the assembly process.

[0091] Furthermore, the number of packaging members 340 can be multiple and can be the same as the number of wires 3311, so as to respectively package the connections between the multiple wires 3311 and the housing 310. Of course, multiple packaging members 340 can also be connected to form a whole to simultaneously package the connections between the multiple wires 3311 and the housing 310.

[0092] In the above solution, the connection between the wire 3311 and the housing 310 can be encapsulated using the encapsulation member 340 to improve the waterproof and dustproof performance of the temperature detection assembly 300. Furthermore, the encapsulation member 340 can also secure the wire 3311 to the housing 310, thereby reducing the probability of the wire 3311 pulling on the detection member 320 during assembly.

[0093] In order to improve the electrical connection reliability between the connector 332 and the control component, the electrical connector 330 may further include a connecting buckle 333. Figure 8 As shown, the connecting buckle 333 can be provided on the connecting head 332. When the connecting head 332 is electrically connected to the control component, the connecting buckle 333 can also be used to connect the control component to fix the connecting head 332 on the control component.

[0094] Connector 333 can connect to the corresponding structure on the circuit board integrated with the control component. When connector 332 is electrically connected to the control component via plugging, connector 333 can simultaneously connect to the corresponding structure on the circuit board integrated with the control component, thereby securing connector 332 to the control component. For example, connector 333 can be a flight buckle.

[0095] In some embodiments, the connector buckle 333 can be detachably connected to the connector head 332. Furthermore, the connector buckle 333 can be independently connected to the connector head 332 and the control assembly after the connector head 332 is electrically connected to the control assembly. Furthermore, the connector buckle 333 can also be detachably connected to a corresponding structure integrated on a circuit board of the control assembly.

[0096] In the above scheme, a connecting buckle 333 is provided on the connecting head 332, and the connecting buckle 333 can also be used to connect the control component, so that after the connecting head 332 is electrically connected to the control component, it can also be connected to the control component through the connecting buckle 333 to improve the stability of the electrical connection between the connecting head 332 and the control component.

[0097] See also Figure 9 , Figure 9 Yes Figure 6 Schematic diagram of the connection structure between the middle housing 310 and multiple detection components 320.

[0098] like Figure 9 As shown, in order to improve the convenience of disassembly and assembly of the temperature detection assembly 300, the shell 310 can also be detachably connected to the battery cell assembly 100 or the box assembly 200.

[0099] To allow the detection member 320 to be disposed adjacent to a battery cell of the battery cell assembly 100 , the housing 310 may be detachably connected to a busbar of the battery cell assembly 100 . Of course, the housing 310 may also be connected to other components of the battery cell assembly 100 in addition to the busbar.

[0100] In some embodiments, the shell 310 can also be detachably connected to the box assembly 200, such as the first box 210 or the second box 220, and is not limited to being detachably connected to the battery cell assembly 100, which helps to reduce the impact of the detachable connection on the structural design of the battery cell assembly 100.

[0101] In the above solution, by providing a detachable connection between the housing 310 and the battery cell assembly 100 or the box assembly 200 , the convenience of disassembling and assembling the temperature detection assembly 300 can be improved.

[0102] In order to prevent the detachable connection between the housing 310 and the battery cell assembly 100 or the box assembly 200 from affecting the installation of the detection member 320, the housing 310 may include: a connecting portion 311 and a receiving portion 312. Figure 9 As shown, the connecting portion 311 may be connected to the receiving portion 312 and may be detachably connected to the battery cell assembly 100 or the box assembly 200 , and the receiving portion 312 may have a receiving space 3101 and an opening 3102 .

[0103] The accommodating portion 312 can be sleeve-shaped in appearance and can enclose the accommodating space 3101. An opening 3102 connecting the interior and exterior of the accommodating space 3101 can also be formed at one axial end of the accommodating portion 312, allowing airflow to enter the accommodating space 3101 through the opening 3102. Furthermore, openings 3102 can also be formed on the radially circumferential side of the accommodating portion 312, allowing for a plurality of openings 3102 to increase the air intake into the accommodating space 3101. Of course, the specific location and number of openings 3102 can be adjusted based on design requirements, and this embodiment will not be fully detailed here.

[0104] The connecting portion 311 may be connected to one end of the accommodating portion 312 away from the opening 3102, and the opposite ends of the connecting portion 311 may be arranged to protrude radially from the accommodating portion 312, and may be used to detachably connect to the battery cell assembly 100 or the box assembly 200. For example, threaded connection holes 3104 may be provided on the opposite ends of the connecting portion 311, so that the connecting portion 311 can be fastened to the battery cell assembly 100 or the box assembly 200 by bolts, thereby achieving a detachable connection between the housing 310 and the battery cell assembly 100 or the box assembly 200.

[0105] In some embodiments, there are multiple ways to detachably connect the connecting portion 311 to the battery cell assembly 100 or the box assembly 200. For example, elastic clips may be provided on opposite ends of the connecting portion 311, and the battery cell assembly 100 or the box assembly 200 may be provided with a card slot. When the connecting portion 311 is assembled with the battery cell assembly 100 or the box assembly 200, the elastic clip undergoes elastic deformation and is inserted into the card slot. After being inserted into the card slot to a predetermined position, the elastic clip returns to its undeformed state and engages with the card structure in the card slot. When the connecting portion 311 is disassembled from the battery cell assembly 100 or the box assembly 200, the elastic clip may also undergo elastic deformation to release the card slot, allowing the elastic clip to exit the card slot.

[0106] In some embodiments, the connection portion 311 may be omitted, and the receiving portion 312 may be detachably connected to the battery cell assembly 100 or the box assembly 200. For example, threads may be formed on the radially circumferential side of the receiving portion 312, and screw holes may be provided on the battery cell assembly 100 or the box assembly 200, so that the receiving portion 312 can be inserted into the screw holes, thereby achieving a detachable connection between the receiving portion 312 and the battery cell assembly 100 or the box assembly 200.

[0107] It is understandable that, in addition to the solutions shown in the above embodiments, there are many ways to detachably connect the shell 310 to the battery cell assembly 100 or the box assembly 200, and they can be selected according to design requirements. This embodiment will not list them one by one here.

[0108] Finally, in some specific application scenarios, in order to solve the problem of low installation convenience of multiple temperature sensors in existing battery devices. The battery device 10 provided in the embodiment of the present application includes: a battery cell assembly 100, a box assembly 200 and a temperature detection assembly 300; the battery cell assembly 100 and the temperature detection assembly 300 are both arranged in the box assembly 200; the temperature detection assembly 300 includes: a shell 310 and a plurality of detection members 320; the shell 310 has a receiving space 3101, and an opening 3102 connecting the outside of the shell 310 and the receiving space 3101; the plurality of detection members 320 are all arranged in the receiving space 3101, and the detection members 320 are used to detect the temperature of the airflow entering the receiving space 3101 from the opening 3102. Wherein, the shell 310 is detachably connected to the battery cell assembly 100 or the box assembly 200. The detection element 320 includes a protective shell 321 and a thermal element 322 . The protective shell 321 is disposed in the accommodating space 3101 . The thermal element 322 is disposed in the protective shell 321 and is used to detect the temperature of the airflow entering the accommodating space 3101 from the opening 3102 .

[0109] The battery device 10 also includes: a control component, and the temperature detection component 300 also includes: an electrical connector 330; one end of the electrical connector 330 is provided on the shell 310 and is electrically connected to the multiple detection components 320; and the other end of the electrical connector 330 is electrically connected to the control component. Among them, the electrical connector 330 includes: a connecting wire 331 and a connector 332; one end of the connecting wire 331 is provided on the shell 310 and is electrically connected to the multiple detection components 320; the connector 332 is connected to the other end of the connecting wire 331 and is detachably plugged into the control component. The electrical connector 330 also includes: a connecting buckle 333; the connecting buckle 333 is provided on the connector 332, and when the connector 332 is electrically connected to the control component, the connecting buckle 333 is used to connect the control component to fix the connector 332 on the control component.

[0110] The temperature detection assembly 300 provided in the embodiment of the present application is provided with a plurality of detection members 320 within the accommodation space 3101 of the housing 310. The detection members 320 can be used to detect the temperature of the airflow entering the accommodation space 3101 from the opening 3102 of the housing 310. This allows the temperature detection assembly 300 to implement the temperature detection function using the plurality of detection members 320. Furthermore, by integrating the plurality of detection members 320 within the accommodation space 3101 of the housing 310 and then using the housing 310 to install the battery cell assembly 100 or the box assembly 200, the installation convenience of the temperature detection assembly 300 can also be improved.

[0111] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A battery device, characterized in that: The battery device includes: a box assembly, a battery cell assembly and a temperature detection assembly; The battery cell assembly and the temperature detection assembly are both arranged in the box assembly; The temperature detection assembly includes: a shell and a plurality of detection components; The housing has a receiving space and an opening communicating with the outside of the housing and the receiving space; The plurality of detection elements are all arranged in the accommodation space, and the detection elements are used to detect the temperature of the airflow entering the accommodation space from the opening.

2. The battery device according to claim 1, wherein: The detection component includes: a protective shell and a thermal element; The protective shell is arranged in the accommodating space, and the thermal element is arranged in the protective shell and is used to detect the temperature of the airflow entering the accommodating space from the opening.

3. The battery device according to claim 1, wherein: The battery device further includes: a control component, and the temperature detection component further includes: an electrical connector; One end of the electrical connector is provided on the housing and is electrically connected to the plurality of detection components; and the other end of the electrical connector is electrically connected to the control component.

4. The battery device according to claim 3, characterized in that The electrical connector includes: a connecting wire and a connecting head; One end of the connecting wire is provided on the housing and is electrically connected to the plurality of detecting elements; The connector is connected to the other end of the connecting line and is detachably plugged into the control assembly.

5. The battery device according to claim 4, characterized in that The connecting line includes: a plurality of conductive wires and an insulating layer wrapped around the plurality of conductive wires; The number of the conductive wires is the same as the number of the detection elements, and the plurality of conductive wires are electrically connected to the plurality of detection elements in a one-to-one correspondence, and are all electrically connected to the connector.

6. The battery device according to claim 5, characterized in that One end of the wire is passed through the housing and extends into the accommodating space to be electrically connected to the detection element; A packaging component is provided on the outer surface of the shell, and the packaging component is provided around the wire and passes through one end of the shell, and blocks the gap between the wire and the shell.

7. The battery device according to claim 4, characterized in that The electrical connector also includes: a connecting buckle; The connecting buckle is provided on the connecting head. When the connecting head is electrically connected to the control component, the connecting buckle is used to connect the control component to fix the connecting head on the control component.

8. The battery device according to claim 1, wherein: The housing is detachably connected to the battery cell assembly or the box assembly.

9. The battery device according to claim 8, characterized in that The housing comprises: a connecting portion and a receiving portion; The connecting portion is connected to the accommodating portion and is detachably connected to the battery cell assembly or the box assembly; The accommodation portion has the accommodation space and the opening.

10. An electrical device, characterized in that: The electrical device comprises: the battery device according to any one of claims 1-9.

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