Battery device and electric device

Abstract

The application provides a battery device and an electric device. The battery device comprises a box body, a battery cell, a conductive part, and a sensor assembly. The box body forms a containing space. The battery cell is contained in the containing space. The conductive part is contained in the containing space and electrically connected with the battery cell. The sensor assembly is contained in the containing space and comprises an insulating support and a first sensor. The insulating support comprises a connecting part and a supporting part which are connected with each other. The connecting part is connected with the box body. The conductive part is connected with the supporting part. The first sensor is connected with the conductive part. Since the conductive part is connected with the supporting part of the insulating support and the insulating support is connected with the box body through the connecting part, the conductive part is directly connected with the box body through the insulating support. Compared with the mode that the insulating column and the support are matched, the number of parts used is saved, the assembly process is simplified, the sensor assembly can be conveniently assembled into the battery device, and the production efficiency of the battery device is improved.

Description

Technical Field

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

[0002] Battery devices have advantages such as high specific energy and high power density, and are widely used in electronic devices and transportation vehicles, such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships and power tools.

[0003] As the application scope of battery devices continues to expand, the market demand for battery devices is also increasing, and how to improve the production efficiency of battery devices is receiving more and more attention from those skilled in the art. Utility Model Content

[0004] In view of the above problems, this application provides a battery device and an electrical device, the battery device having high production efficiency.

[0005] In a first aspect, some embodiments of this application provide a battery device, which includes a housing, a battery cell, a conductive element, and a sensor assembly. The housing forms a receiving space; the battery cell is received in the receiving space; the conductive element is received in the receiving space and electrically connected to the battery cell; the sensor assembly is received in the receiving space, and the sensor assembly includes an insulating support and a first sensor. The insulating support includes a connecting portion and a supporting portion that are connected to each other. The connecting portion is connected to the housing, the conductive element is connected to the supporting portion, and the first sensor is connected to the conductive element.

[0006] In the above structure, the first sensor is connected to a conductive component, enabling it to detect electrical signals flowing through the conductive component. Since the conductive component is connected to the support portion of the insulating bracket, and the insulating bracket is connected to the housing via a connecting portion, the conductive component is directly connected to the housing via the insulating bracket. Compared to the method of using insulating columns and brackets, this not only saves on the number of parts used but also simplifies the assembly process, allowing the sensing component to be easily assembled into the battery device, thus improving the production efficiency of the battery device.

[0007] According to some embodiments of the present application, the battery device is provided with a positioning structure in the connecting part. The positioning structure is connected to the first sensor, so that the first sensor supported by the conductive element is also connected to the connecting part of the insulating bracket. This fixes the first sensor by the two components of the conductive element and the insulating bracket, making it difficult for the first sensor and the conductive element to shift relative to each other. This is beneficial to improving the long-term stability of the measurement of the first sensor and can improve the overall reliability under harsh working conditions.

[0008] According to some embodiments of this application, the battery device includes two support portions, which are spaced apart along a first direction to form a cavity. A connecting portion connects the two support portions, and at least a portion of a first sensor is located in the cavity and connected to a positioning structure. A conductive element extends along the first direction, with both ends connected to the two support portions respectively. By placing at least a portion of the first sensor in the cavity and connecting it to the positioning structure, the first sensor can utilize the space provided by the insulating support, thereby improving the space utilization rate of the battery device.

[0009] According to some embodiments of the present application, the battery device includes a positioning structure comprising two first protrusions spaced apart along a first direction. The first protrusions protrude from the surface of the connecting portion facing the cavity, and a groove is formed between the two first protrusions. At least a portion of a first sensor is inserted into the groove, such that at least a portion of the first sensor is connected to the positioning structure.

[0010] According to some embodiments of the present application, the battery device includes a conductive element comprising a main body and two adapters, the two adapters being disposed opposite to each other along a first direction, the main body being connected between the two adapters, the adapters being connected to a support, and a first sensor being connected to the main body, such that the two ends of the conductive element in the first direction are connected to the support via adapters, and the first sensor connected to the main body is located between the two support.

[0011] According to some embodiments of this application, the battery device further includes a sampling terminal electrically connected to a second sensor, the sampling terminal being connected to an adapter. By connecting the sampling terminal to the adapter, the sampling terminal can be stably electrically connected to a conductive element, enabling the second sensor to stably measure information such as current, voltage, or temperature in the battery device.

[0012] According to some embodiments of the present application, the battery device is provided in which the sampling terminal and the adapter are stacked along the second direction and connected to the support. The second direction is perpendicular to the first direction, which can reduce the space occupied by the sampling terminal and improve space utilization.

[0013] According to some embodiments of the present application, the battery device provided has at least two second protrusions on the end face of the support in the second direction. The at least two second protrusions are spaced apart, and the adapter and sampling terminal are inserted between the two second protrusions, which reduces the possibility of the adapter and sampling terminal rotating or moving relative to the support and makes the connection between the adapter and sampling terminal and the support firm.

[0014] According to some embodiments of the present application, the battery device is provided in which the sampling terminal and the adapter are detachably connected to the support, so that the sampling terminal and the conductive component can be easily removed and replaced on the insulating bracket, so that different measurement requirements can be met by replacing the sampling terminal and the conductive component, and the number of sampling terminals can be easily increased or decreased.

[0015] According to some embodiments of this application, the battery device has an integrally formed structure for the connecting part and the supporting part, which not only makes the processing and manufacturing of the insulating bracket convenient, but also gives the overall structure of the insulating bracket good strength and makes the connection of the insulating bracket firm.

[0016] According to some embodiments of the present application, the battery device includes an electromagnetic isolation cover covering the outside of the first sensor. The insulating bracket also includes a mounting portion connected to the connection portion. The electromagnetic isolation cover is connected to the mounting portion, and the electromagnetic isolation cover can reduce measurement errors and signal noise.

[0017] According to some embodiments of the present application, the battery device includes a sensor assembly that further includes a connecting bracket. The electromagnetic isolation cover is connected to the mounting portion via the connecting bracket, so that the electromagnetic isolation cover can be supported by the connecting bracket at a suitable distance from the first sensor, thereby enabling the electromagnetic isolation cover to effectively isolate the first sensor from external magnetic fields.

[0018] According to some embodiments of the present application, the battery device has two mounting parts, which are respectively located on both sides of the connecting part. There are two connecting brackets, and each mounting part is connected to the electromagnetic isolation cover through the connecting bracket, so that the electromagnetic isolation cover can be stably supported and fixed by the two mounting parts, which is beneficial to improving the reliability of the electromagnetic isolation cover.

[0019] According to some embodiments of the present application, the battery device includes two mounting portions, each located on one side of the connecting portion. The connecting bracket includes a first portion and two second portions, which are arranged opposite to each other. The first portion is connected between the two second portions, and both mounting portions are connected to the first portion. The two second portions are connected to the electromagnetic isolation cover. The connecting bracket formed by connecting the first portion and the second portion is an integral structure. The first portion and the second portion can be manufactured simultaneously, allowing for a single-process manufacturing of the connecting bracket that connects to both mounting portions and the electromagnetic isolation cover, thus improving manufacturing convenience.

[0020] According to some embodiments of this application, the battery device includes a first compartment and a second compartment. At least some battery cells are housed in the first compartment, and conductive components and sensor assemblies are housed in the second compartment. The voltage of the second compartment is higher than that of the first compartment, and a first sensor is capable of detecting electrical signals from a relatively high voltage current flowing through the conductive components.

[0021] Secondly, some embodiments of this application provide an electrical device that includes a battery device provided by any of the above-described technical solutions, the battery device being used to provide electrical energy.

[0022] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects: Some embodiments of this application provide a battery device including a housing, battery cells, a conductive element, and a sensor assembly. The housing has a receiving space; the battery cells are received in the receiving space; the conductive element is received in the receiving space and electrically connected to the battery cells; the sensor assembly is received in the receiving space and includes an insulating support and a first sensor. The insulating support includes a connecting portion and a supporting portion connected to each other. The connecting portion is connected to the housing, the conductive element is connected to the supporting portion, and the first sensor is connected to the conductive element. In the above structure, the first sensor, by connecting to the conductive element, can detect the electrical signal flowing through the conductive element. Since the conductive element is connected to the supporting portion of the insulating support, and the insulating support is connected to the housing through the connecting portion, the conductive element is directly connected to the housing through the insulating support. Compared to the method of using insulating posts and supports, this not only saves the number of parts used but also simplifies the assembly process, allowing the sensor assembly to be easily assembled into the battery device, thus improving the production efficiency of the battery device. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of a vehicle provided for some embodiments of this application; Figure 2 Exploded views of the battery device provided in some embodiments of this application; Figure 3 These are schematic diagrams of the sensor components and conductive elements provided in some embodiments of this application; Figure 4 A first-view structural schematic diagram of the sensor assembly and conductive element provided in other embodiments of this application; Figure 5 A second-view structural schematic diagram of the sensor assembly and conductive element provided in other embodiments of this application; Figure 6 This is a schematic diagram of the structure of the insulating support provided in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the electromagnetic isolation cover and connecting bracket provided in some embodiments of this application; Figure 8 The diagram shows the structure of the electromagnetic shield and connecting bracket provided in other embodiments of this application.

[0024] In the picture: 1. Vehicle; 2. Battery unit; 3. Controller; 4. Motor; 5. Housing; 5a. First housing section; 5b. Second housing section; 5c. Accommodation space; 7. Battery cell; 70. Battery cell pack; 8. Conductive component; 81. Main body section; 82. Adapter section; 9. Insulating bracket; 90. Cavity; 91. Connecting section; 911. Positioning structure; 9111. First protrusion; 9112. Groove; 92. Support section; 921. Second protrusion; 93. Mounting section; 10. First sensor; 11. Sampling terminal; 12. Electromagnetic isolation cover; 121. First structure; 122. Second structure; 13. Connecting bracket; 131. First part; 132. Second part; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0025] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by those skilled in the art to which the embodiments of this application pertain.

[0027] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in energy storage containers or energy storage cabinets. As the application fields of battery devices continue to expand, the usage of battery devices is also constantly increasing.

[0032] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which may be connected in series, parallel, or a combination thereof.

[0033] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0034] A battery cell can be a rechargeable battery cell, which refers to a battery cell that can be recharged after being discharged to activate the active materials and continue to be used.

[0035] Battery cells can be lithium-ion cells, sodium-ion cells, sodium-lithium-ion cells, lithium metal cells, sodium metal cells, lithium-sulfur cells, magnesium-ion cells, nickel-metal hydride cells, nickel-cadmium cells, lead-acid cells, etc.

[0036] As an example, a battery cell group can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0037] In some embodiments, the battery device may include one or more battery packs, which may include one or more battery cell groups. As an example, a battery pack includes a housing and one or more battery cell groups, the battery cell groups being housed, for example, in a fixed manner within the housing. As yet another example, the battery device may include multiple battery packs, which may be connected in series, parallel, or in a mixed configuration.

[0038] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the battery cell pack. Here, "closed" refers to covering or closing, which can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0039] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the battery cells.

[0040] In some embodiments, the battery device can be used in an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0041] In battery devices, sensors are typically used to measure information such as current, voltage, or temperature, allowing users to monitor the battery's status in a timely manner. To improve measurement accuracy and convenience, conductive components connected to the sensors are usually positioned and supported by brackets, with insulating posts on the brackets providing electrical isolation. This fixing method involves many components, increasing material costs and making the installation process cumbersome and inconvenient, which is detrimental to improving the production efficiency of battery devices.

[0042] To improve the production efficiency of battery devices, some embodiments of this application provide a battery device including a housing, battery cells, conductive elements, and a sensor assembly. The housing forms a receiving space; the battery cells are received in the receiving space; the conductive elements are received in the receiving space and electrically connected to the battery cells; the sensor assembly is received in the receiving space and includes an insulating support and a first sensor. The insulating support includes a connecting portion and a supporting portion connected to each other. The connecting portion is connected to the housing, the conductive elements are connected to the supporting portion, and the first sensor is connected to the conductive elements. In the above structure, the first sensor, by connecting to the conductive elements, can detect electrical signals flowing through the conductive elements. Since the conductive elements are connected to the supporting portion of the insulating support, and the insulating support is connected to the housing through the connecting portion, the conductive elements are directly connected to the housing through the insulating support. Compared to the method of using insulating columns and supports, this not only saves the number of parts used but also simplifies the assembly process, allowing the sensor assembly to be easily assembled into the battery device, thereby improving the production efficiency of the battery device.

[0043] The battery device described in the embodiments of this application is applicable to electrical devices that use battery devices.

[0044] Electrical devices can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, among others. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0045] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0046] Figure 1 A schematic diagram of a vehicle provided for some embodiments of this application.

[0047] like Figure 1 As shown, a battery device 2 is installed inside the vehicle 1. The battery device 2 can be located at the bottom, front, or rear of the vehicle 1. The battery device 2 can be used to power the vehicle 1; for example, the battery device 2 can serve as the operating power source for the vehicle 1.

[0048] The vehicle 1 may also include a controller 3 and a motor 4. The controller 3 is used to control the battery device 2 to supply power to the motor 4, for example, for the power needs of the vehicle 1 during starting, navigation and driving.

[0049] In some embodiments of this application, the battery device 2 can not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0050] Figure 2 This is a schematic diagram showing the disassembled structure of a battery device provided in some embodiments of this application. For example... Figure 2 As shown, the battery device 2 includes a housing 5 and a battery cell assembly 70, which is housed within the housing 5. The battery cell assembly 70 may include multiple battery cells, and the battery elevator may be the smallest unit that makes up the battery.

[0051] The housing 5 is used to accommodate the battery cell pack 70, and the housing 5 can have various structures. In some embodiments, the housing 5 may include a first housing portion 5a and a second housing portion 5b, which overlap each other, and together define a receiving space 5c for accommodating the battery cell pack 70. The second housing portion 5b may be a hollow structure with one end open, and the first housing portion 5a may be a plate-like structure, covering the open side of the second housing portion 5b to form a housing 5 with the receiving space 5c; alternatively, both the first housing portion 5a and the second housing portion 5b may be hollow structures with one side open, with the open side of the first housing portion 5a covering the open side of the second housing portion 5b to form a housing 5 with the receiving space 5c. Of course, the first housing portion 5a and the second housing portion 5b can be various shapes, such as cylinders, cuboids, etc.

[0052] To improve the sealing performance after the first housing part 5a and the second housing part 5b are connected, a sealing element, such as sealant or sealing ring, can also be provided between the first housing part 5a and the second housing part 5b.

[0053] Assuming that the first box section 5a covers the top of the second box section 5b, the first box section 5a can also be called the upper box cover, and the second box section 5b can also be called the lower box.

[0054] Some embodiments of this application provide a battery device 2, which includes a housing 5, a battery cell 7, a conductive element 8, and a sensor assembly. The housing 5 forms a receiving space 5c; the battery cell 7 is received in the receiving space 5c; the conductive element 8 is received in the receiving space 5c and electrically connected to the battery cell 7; the sensor assembly is received in the receiving space 5c, see reference. Figure 3 , Figure 4 and Figure 5The sensor assembly includes an insulating bracket 9 and a first sensor 10. The insulating bracket 9 includes a connecting part 91 and a supporting part 92 that are connected to each other. The connecting part 91 is connected to the housing 5, the conductive element 8 is connected to the supporting part 92, and the first sensor 10 is connected to the conductive element 8.

[0055] The housing 5 can be a component for providing a receiving space 5c, which is used to house components such as battery cells 7, conductive components 8, sensors, and heat exchange devices located inside the battery device 2, so that the housing 5 can provide protection for the battery cells 7, conductive components 8, sensors, heat exchange devices, and other devices.

[0056] Battery cell 7 can be a rechargeable battery cell, which refers to a battery cell that can be recharged after discharge to activate the active materials and continue to be used. Battery cell 7 can be a lithium-ion battery cell, sodium-ion battery cell, sodium-lithium-ion battery cell, lithium metal battery cell, sodium metal battery cell, lithium-sulfur battery cell, magnesium-ion battery cell, nickel-metal hydride battery cell, nickel-cadmium battery cell, lead-acid battery cell, etc.

[0057] The battery cell 7 is housed in the housing space 5c, which protects the battery cell 7 from changes in the external environment and improves the operational stability of the battery cell 7.

[0058] The housing 5 can accommodate multiple battery cells 7. Multiple battery cells 7 can be connected in series, parallel or mixed connection through conductive components 8 to form a battery cell group 70. The battery cell group 70 can be connected in series, parallel or mixed connection as an independent module.

[0059] The conductive element 8 can be a conductive device used for electrical connection with the battery cell 7. It is electrically connected to the sensor so that the sensor can easily measure electrical signals such as current and voltage. For example, the conductive element 8 can be a busbar in the battery device that connects battery cells in series, parallel, or mixed connections. By reusing the busbar, it is not necessary to set up the additional conductive element 8.

[0060] The sensor assembly can be a sensor for measuring electrical signals such as current and voltage, or a sensor for measuring temperature signals; those skilled in the art can choose according to actual needs. The conductive element 8 and the sensor assembly are housed in the receiving space 5c, making the measurement structure more accurate.

[0061] The insulating bracket 9 can be a bracket structure with insulating properties, used for electrical isolation and support of the conductive component 8. The connecting part 91 and the supporting part 92 are two interconnected parts of the insulating bracket 9. The connecting part 91 is a structural part connected to the housing 5, providing support for the entire insulating bracket 9, thus enabling the insulating bracket 9 to support the conductive component 8. The supporting part 92 is a structural part of the insulating bracket 9 used to support the conductive component 8. With the support of the supporting part 92, the conductive component 8 can be positioned for easy connection to the first sensor 10, facilitating the connection of the first sensor 10. The connection between the conductive component 8 and the supporting part 92 can refer to the connection using bolts, clips, or other connectors, or it can refer to the conductive component 8 and the supporting part 92 being simultaneously formed using an integral molding process such as injection molding.

[0062] The first sensor 10 is connected to the conductive element 8. This connection can be achieved through welding, conductive adhesive bonding, or other methods, or through bolts, rivets, or other connectors. This connection not only secures the first sensor 10 to the conductive element 8 but also provides an electrical connection between them. For example, the first sensor 10 can be a fluxgate current sensor, and it has a through-hole through which the conductive element 8 passes.

[0063] The conductive element 8 is connected to the support part 92, which means that the conductive element 8 is connected to the support part 92 by bolts, buckles or other connecting parts, so that the conductive element 8 is stably supported by the support part 92.

[0064] In the above structure, the first sensor 10 is connected to the conductive element 8, enabling the first sensor 10 to detect the electrical signal flowing through the conductive element 8. Since the conductive element 8 is connected to the support portion 92 of the insulating bracket 9, and the insulating bracket 9 is connected to the housing 5 through the connecting portion 91, the conductive element 8 is directly connected to the housing 5 through the insulating bracket 9. Compared with the method of using insulating columns and brackets, this not only saves the number of parts used, but also simplifies the assembly process, making it easier to assemble the sensing component into the battery device 2, thereby improving the production efficiency of the battery device 2.

[0065] In some embodiments, reference Figure 6 The connecting part 91 is provided with a positioning structure 911, which is connected to the first sensor 10.

[0066] The positioning structure 911 can be used to position the first sensor 10 and the insulating support 9 relative to each other. By providing the positioning structure 911 on the connecting part 91 and connecting the positioning structure 911 to the first sensor 10, the first sensor 10, supported by the conductive member 8, is also connected to the connecting part 91 of the insulating support 9. This fixes the first sensor 10 with both the conductive member 8 and the insulating support 9, making it less prone to relative displacement between the first sensor 10 and the conductive member 8. This improves the long-term stability of the measurement by the first sensor 10 and enhances the overall reliability under harsh working conditions.

[0067] In some embodiments, two support portions 92 are provided, and the two support portions 92 are spaced apart from each other along the first direction X to form a cavity 90. A connecting portion 91 is connected between the two support portions 92. At least a portion of the first sensor 10 is located in the cavity 90 and is connected to the positioning structure 911. The conductive element 8 extends along the first direction X, and both ends of the conductive element 8 are respectively connected to the two support portions 92.

[0068] The cavity 90 can be a space for accommodating at least a portion of the first sensor 10. By providing two support portions 92 and arranging them relatively spaced apart along a first direction X, a cavity 90 is formed between the two support portions 92. The connecting portion 91 connects between the two support portions 92, meaning that the connecting portion 91 is located between the two support portions 92, and both ends of the connecting portion 91 are respectively connected to the two support portions 92, so that the insulating bracket 9 formed by the connection of the connecting portion 91 and the support portions 92 has good structural integrity.

[0069] At least a portion of the first sensor 10 is located in the cavity 90 and connected to the positioning structure 911. This can mean that at least a portion of the first sensor 10 is located in the cavity 90 and connected to the positioning structure 911 located in the cavity 90. By having at least a portion of the first sensor 10 located in the cavity 90 and connected to the positioning structure 911, the first sensor 10 can utilize the space provided by the insulating support 9, thereby improving the space utilization of the battery device 2.

[0070] By extending the conductive element 8 along the first direction X and connecting its two ends to the two support portions 92 respectively, the conductive element 8 is supported by the support portions 92 at both ends of the first direction X, thus ensuring that the conductive element 8 is firmly supported by the insulating bracket 9 and improving the stability of the conductive element 8 in the accommodating space 5c.

[0071] In some embodiments, the positioning structure 911 includes two first protrusions 9111 spaced apart along a first direction X. The first protrusions 9111 protrude from the surface of the connecting portion 91 facing the cavity 90, and a groove 9112 is formed between the two first protrusions 9111. At least a portion of the first sensor 10 is inserted into the groove 9112.

[0072] The first protrusion 9111 may be a structure that protrudes from the surface of the connecting portion 91 toward the cavity 90. The positioning structure 911 includes two first protrusions 9111 that are spaced apart from each other along a first direction X, such that a groove 9112 for insertion into the first sensor 10 can be formed between the two first protrusions 9111. By inserting at least a portion of the first sensor 10 into the groove 9112, at least a portion of the first sensor 10 is connected to the positioning structure 911.

[0073] For example, the groove 9112 can be a through groove extending along the third direction Z. The first sensor 10 can be inserted into the groove 9112 along the third direction Z to connect the first sensor 10 and the positioning structure 911. This allows the first sensor 10 to be pre-connected to the insulating bracket 9 during assembly, achieving pre-fixation of the first sensor 10 and the insulating bracket 9. This facilitates the subsequent connection and fixation of the first insulating bracket 9 to the conductive component 8, improving the ease of connection of the first sensor 10. The third direction Z is perpendicular to the first direction X.

[0074] In some embodiments, the conductive element 8 includes a main body 81 and two transition parts 82, the two transition parts 82 are arranged opposite to each other along a first direction X, the main body 81 is connected between the two transition parts 82, the transition parts 82 are connected to the support part 92, and the first sensor 10 is connected to the main body 81.

[0075] The main body 81 can be the main structure of the conductive member 8, which is used to connect to the first sensor 10. The adapter 82 can be a structural part of the conductive member 8 used to connect to the sampling terminal 11 and the support 92. By arranging the two adapters 82 opposite each other along the first direction X, and connecting the main body 81 between the two adapters 82, the two adapters 82 are connected to both ends of the main body 81 in the first direction X, and the conductive member 8 is connected to the support 92 at both ends of the first direction X through the adapters; similarly, the first sensor 10 connected to the main body 81 is located between the two support 92.

[0076] In some embodiments, continue to refer to Figure 3 The battery device 2 also includes a sampling terminal 11 electrically connected to the second sensor, and the sampling terminal 11 is connected to the adapter 82.

[0077] The sampling terminal 11 can be a terminal structure for electrical connection with the second sensor, enabling the second sensor to be stably electrically connected to the conductive element 8. The second sensor can be a sensor for measuring information such as current, voltage, or temperature in the battery device 2. By connecting the sampling terminal 11 to the adapter 82, the sampling terminal 11 can be stably electrically connected to the conductive element 8, allowing the second sensor to stably measure information such as current, voltage, or temperature in the battery device 2.

[0078] The sampling terminal 11 is connected to the adapter 82. This can mean that the sampling terminal 11 is connected to the adapter 82 by means of welding, conductive adhesive bonding, etc., or it can mean that the sampling terminal 11 is connected to the adapter by means of bolts, rivets, etc.

[0079] In some embodiments, the sampling terminal 11 and the adapter 82 are stacked along the second direction Y and connected to the support 92, where the second direction Y is perpendicular to the first direction X.

[0080] The second direction Y is perpendicular to the first direction X. The sampling terminal 11 and the adapter 82 are stacked along the second direction Y and connected to the support 92. Specifically, the sampling terminal 11 has a first through hole extending along the second direction Y, and the adapter 82 has a second through hole extending along the second direction Y. The sampling terminal 11 and the adapter 82 are stacked along the second direction Y, with the first and second through holes facing each other. Bolts pass through the first and second through holes and are connected to the support 92. This not only reduces the space occupied by the sampling terminal 11, improving space utilization, but also ensures a firm and stable connection between the sampling terminal 11 and the adapter 82.

[0081] In some embodiments, the support portion 92 has at least two second protrusions 921 protruding from its end face in the second direction Y. The at least two second protrusions 921 are spaced apart, and the adapter portion 82 and the sampling terminal 11 are inserted between the two second protrusions 921.

[0082] The second protrusion 921 may be a protrusion structure formed by the support portion 92 protruding from the end face in the second direction Y. The second protrusion 921 is used to position the adapter portion 82 and the sampling terminal 11 relative to the support portion 92.

[0083] By providing at least two second protrusions 921 on the end face of the support portion 92 in the second direction Y, and by spacing the at least two second protrusions 921 apart, the adapter portion 82 and the sampling terminal 11 can be inserted into the gap between the two second protrusions 921, thereby achieving the positioning of the adapter portion 82 and the sampling terminal 11, reducing the possibility of the adapter portion 82 and the sampling terminal 11 rotating or moving relative to the support portion 92, and making the connection between the adapter portion 82 and the sampling terminal 11 and the support portion 92 firm.

[0084] For example, every two second protrusions 921 are configured as a group, and the two second protrusions 921 in each group are arranged at relative intervals along the third direction Z. The adapter 82 and the sampling terminal 11 are inserted between the two second protrusions 921 in the same group.

[0085] In some embodiments, the sampling terminal 11 and the adapter 82 are detachably connected to the support 92.

[0086] By detachably connecting the sampling terminal 11 and the adapter 82 to the support 92, the sampling terminal 11 and the conductive element 8 can be easily removed and replaced on the insulating bracket 9, so that different measurement requirements can be met by replacing the sampling terminal 11 and the conductive element 8, and the number of sampling terminals 11 can be easily increased or decreased.

[0087] For example, the sampling terminal 11 and the adapter 82 are locked to the support 92 by bolts passing through the sampling terminal 11 and the adapter 82, so that the sampling terminal 11 and the adapter 82 can be easily installed and removed from the support 92.

[0088] In some embodiments, the connecting portion 91 and the supporting portion 92 are integrally formed structures.

[0089] The connecting part 91 and the supporting part 92 are integrally formed structures, which means that the connecting part 91 and the supporting part 92 can be made by integral molding processing methods such as injection molding, so that the insulating bracket 9 can be manufactured as a whole and synchronously. This not only makes the processing and manufacturing of the insulating bracket 9 convenient, but also gives the overall structure of the insulating bracket 9 good strength. The connecting part 91 and the supporting part 92 can be made by machining the whole blank using machining methods such as milling, so that the insulating bracket 9 has low processing difficulty and low processing cost.

[0090] In some embodiments, continue to refer to Figure 4 and Figure 5 The sensor assembly also includes an electromagnetic isolation cover 12, which covers the outside of the first sensor 10. The insulating bracket 9 also includes a mounting part 93 connected to the connecting part 91, and the electromagnetic isolation cover 12 is connected to the mounting part 93.

[0091] The electromagnetic shield 12 can be a cover structure used to reduce the influence of external electromagnetic signals on the first sensor 10. For example, the electromagnetic shield 12 can be made of high-permeability materials such as nickel-iron alloy or iron-based amorphous alloy. By covering the outside of the first sensor 10 with the electromagnetic shield 12, an electromagnetic isolation barrier is formed between the first sensor 10 and the busbar. The electromagnetic shield 12 can actively guide and weaken the strong stray magnetic field generated when a large current flows through adjacent busbars, preventing these external magnetic fields from interfering with the operation of the Hall element or other magnetic sensing devices inside the first sensor 10, thereby reducing measurement errors and signal noise.

[0092] The mounting part 93 can be a structure provided on the insulating bracket 9 for connecting the electromagnetic isolation cover 12. The mounting part 93 is connected to the connecting part 91, and the electromagnetic isolation cover 12 is connected to the mounting part 93, so that the insulating bracket 9 can support the electromagnetic isolation cover 12 through the mounting part 93, and the electromagnetic isolation cover 12 can be stably covered on the outside of the first sensor 10.

[0093] In some embodiments, the sensor assembly further includes a connecting bracket 13, through which the electromagnetic isolation cover 12 is connected to the mounting portion 93.

[0094] The connecting bracket 13 can be a frame structure for connecting the electromagnetic isolation cover 12 to the mounting part 93. By connecting the electromagnetic isolation cover 12 to the mounting part 93 through the connecting bracket 13, the electromagnetic isolation cover 12 can be supported by the connecting bracket 13 at a suitable distance from the first sensor 10, so that the electromagnetic isolation cover 12 can effectively isolate the first sensor 10 from the external magnetic field.

[0095] In some embodiments, continue to refer to Figure 6 There are two mounting parts 93, which are respectively located on both sides of the connecting part 91. (Refer to...) Figure 7 There are two connecting brackets 13, and each mounting part 93 is connected to the electromagnetic isolation cover 12 through the connecting bracket 13.

[0096] By providing two mounting parts 93 on both sides of the connecting part 91, and connecting each mounting part 93 to the electromagnetic isolation cover 12 via the connecting bracket 13, the electromagnetic isolation cover 12 can be stably supported and fixed by the two mounting parts 93, which helps to improve the reliability of the electromagnetic isolation cover 12.

[0097] In some embodiments, two mounting portions 93 are provided, with the two mounting portions 93 respectively disposed on both sides of the connecting portion 91; Reference Figure 8 The connecting bracket 13 includes a first part 131 and two second parts 132, which are arranged opposite to each other. The first part 131 is connected between the two second parts 132. Both mounting parts 93 are connected to the first part 131. The two second parts 132 are connected to the electromagnetic isolation cover 12.

[0098] The first part 131 and the second part 132 are two interconnected structures within the connecting bracket 13. The two second parts 132 are arranged opposite each other along the third direction Z for connection with the electromagnetic shield 12. The third direction Z, the second direction Y, and the first direction X are perpendicular to each other.

[0099] The first part 131 is connected between the two second parts 132, so that the connecting bracket 13 formed by the connection of the first part 131 and the second part 132 is an integral structure. The first part 131 and the second part 132 can be processed simultaneously, so that the connecting bracket 13 connected to the two mounting parts 93 and connected to the electromagnetic isolation cover 12 can be obtained in one processing, which is beneficial to improving the convenience of processing.

[0100] For example, the electromagnetic shield 12 includes a first structure 121 and a second structure 122 that are interconnected. The first structure 121 is the main structure in the electromagnetic shield 12 that prevents external magnetic fields from interfering with the first sensor 10, and the second structure 122 is the structure in the electromagnetic shield 12 that is used for connection with the connecting bracket 13.

[0101] In some examples, the first structure 121 and the second structure 122 can be integrally formed by stamping, so that the first structure 121 and the second structure 122 in the electromagnetic shield 12 can be manufactured as a whole and synchronously. This not only makes the processing and manufacturing of the electromagnetic shield 12 convenient, but also gives the overall structure of the electromagnetic shield 12 good strength.

[0102] In some embodiments, the accommodating space 5c includes a first compartment and a second compartment, at least a portion of the battery cells 7 are accommodated in the first compartment, and the conductive components 8 and sensor assemblies are accommodated in the second compartment, the voltage of the second compartment being higher than the voltage of the first compartment.

[0103] The first and second compartments can be two separate spatial areas within the accommodating space 5c. At least a portion of the battery cells 7 are arranged and housed in the first compartment, and are connected in series, parallel, or mixed connections within the first compartment via a busbar. The second compartment can be a spatial area for accommodating electrical components such as conductive elements 8 and sensor assemblies. For example, the battery cells 7, after being connected in series, parallel, or mixed connections, are connected to the conductive elements 8 and other electrical components in the second compartment via a busbar.

[0104] By setting the voltage of the second compartment to be higher than that of the first compartment, the second compartment becomes the high-voltage compartment of the battery device 2, and the first compartment becomes the low-voltage compartment of the battery device 2. By housing the conductive element 8 and the sensor assembly in the second compartment, the first sensor 10 is able to detect electrical signals with relatively high voltage current flowing through the conductive element 8.

[0105] This application also provides an electrical device, which includes a battery device 2 provided by any of the above technical solutions, the battery device 2 being used to provide electrical energy.

[0106] Some embodiments of this application provide a battery device 2, which includes a housing 5, a battery cell 7, a conductive element 8, a sampling terminal 11, and a sensor assembly. The housing 5 forms a receiving space 5c; the battery cell 7 is received in the receiving space 5c; the conductive element 8 is received in the receiving space 5c and electrically connected to the battery cell 7; the sensor assembly is received in the receiving space 5c and includes an insulating support 9, a first sensor 10, an electromagnetic isolation cover 12, and a connecting support 13. The insulating support 9 includes an integrally injection-molded connecting portion 91 and two support portions 92. A portion of the first sensor 10 is located in a cavity 90 formed by the two support portions 92 in a first direction X. The conductive element 8 includes a main body portion 81 and a transition portion 82 connected to both ends of the main body portion 81 in the first direction X. The sampling terminal 11 is stacked on the transition portion 82 along the second direction Y and connected to the support portion 92, and the sampling terminal 11 and the transition portion 82 are inserted between two second protrusions protruding from the support portion 92. The electromagnetic isolation cover 12 is connected to the mounting part 93 of the insulating bracket 9 via the connecting bracket 13, and covers the outside of the first sensor 10.

[0107] In the above structure, the first sensor 10 is connected to the conductive element 8, enabling the first sensor 10 to detect the electrical signal flowing through the conductive element 8. Since the conductive element 8 is connected to the support portion 92 of the insulating bracket 9, and the insulating bracket 9 is connected to the housing 5 through the connecting portion 91, the conductive element 8 is directly connected to the housing 5 through the insulating bracket 9. Compared with the method of using insulating columns and brackets, this not only saves the number of parts used, but also simplifies the assembly process, making it easier to assemble the sensing component into the battery device 2, thereby improving the production efficiency of the battery device 2.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that, include: The box-shaped structure forms a storage space; A single battery cell is housed within the aforementioned housing space; A conductive element is housed in the receiving space and electrically connected to the battery cell; A sensor assembly is housed in the housing space. The sensor assembly includes an insulating support and a first sensor. The insulating support includes a connecting portion and a supporting portion that are connected to each other. The connecting portion is connected to the housing, and the conductive element is connected to the supporting portion. The first sensor is connected to the conductive element.

2. The battery device according to claim 1, characterized in that, The connecting part is provided with a positioning structure, which is connected to the first sensor.

3. The battery device according to claim 2, characterized in that, Two support portions are provided, and the two support portions are spaced apart from each other along a first direction to form a cavity. The connecting portion is connected between the two support portions. At least a portion of the first sensor is located in the cavity and is connected to the positioning structure. The conductive element extends along the first direction, and both ends of the conductive element are respectively connected to the two support portions.

4. The battery device according to claim 3, characterized in that, The positioning structure includes two first protrusions spaced apart along the first direction. The first protrusions protrude from the surface of the connecting portion facing the cavity, and a groove is formed between the two first protrusions. At least a portion of the first sensor is inserted into the groove.

5. The battery device according to claim 3, characterized in that, The conductive component includes a main body and two adapters, the two adapters being arranged opposite each other along the first direction, the main body being connected between the two adapters, the adapters being connected to the support, and the first sensor being connected to the main body.

6. The battery device according to claim 5, characterized in that, The battery device also includes a sampling terminal electrically connected to the second sensor, the sampling terminal being connected to the adapter.

7. The battery device according to claim 6, characterized in that, The sampling terminal and the adapter are stacked along a second direction and connected to the support portion, wherein the second direction is perpendicular to the first direction.

8. The battery device according to claim 7, characterized in that, The support portion has at least two second protrusions on its end face in the second direction, and the at least two second protrusions are spaced apart. The adapter portion and the sampling terminal are inserted between the two second protrusions.

9. The battery device according to claim 7, characterized in that, The sampling terminal and the adapter are detachably connected to the support.

10. The battery device according to claim 1, characterized in that, The connecting part and the supporting part are integrally formed structures.

11. The battery device according to claim 1, characterized in that, The sensor assembly further includes an electromagnetic isolation cover covering the outside of the first sensor, and the insulating bracket further includes a mounting portion connected to the connecting portion, with the electromagnetic isolation cover connected to the mounting portion.

12. The battery device according to claim 11, characterized in that, The sensor assembly also includes a connecting bracket, and the electromagnetic isolation cover is connected to the mounting part via the connecting bracket.

13. The battery device according to claim 12, characterized in that, There are two mounting parts, which are respectively located on both sides of the connecting part. There are two connecting brackets, and each mounting part is connected to the electromagnetic isolation cover through the connecting bracket.

14. The battery device according to claim 12, characterized in that, The mounting portion is provided in two parts, which are respectively located on both sides of the connecting portion; the connecting bracket includes a first part and two second parts, which are arranged opposite to each other, the first part is connected between the two second parts, both mounting portions are connected to the first part, and the two second parts are connected to the electromagnetic isolation cover.

15. The battery device according to claim 1, characterized in that, The accommodating space includes a first compartment and a second compartment. At least a portion of the battery cells are accommodated in the first compartment, and the conductive components and the sensor assembly are accommodated in the second compartment. The voltage of the second compartment is higher than that of the first compartment.

16. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1-15, the battery device being used to provide electrical energy.

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