Battery device and electric equipment

By electrically connecting the cooling fan to the connection terminal in the battery device, the problem of the battery device occupying too much space is solved, and the compactness and portability of the electrical equipment are improved.

CN223927436UActive Publication Date: 2026-02-17ZHEJIANG SUNWODA ELECTRONIC CO LTD
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Patent Information

Application Number
CN202520120179.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-02-17
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

The heat generated during the charging and discharging process of existing battery devices results in low space utilization, affecting the compactness and portability of electrical equipment.

Method used

The cooling fan is electrically connected to the connection terminal on the battery body. The battery device and the cooling fan are electrically connected to the electrical equipment through the same connection terminal, reducing the number of connection terminals.

Benefits of technology

It improves space utilization, enhances the compactness and portability of electrical equipment, simplifies the complexity of electrical connections, and reduces design difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a battery device and electric equipment. The battery device comprises a battery body, the battery body is provided with a connecting terminal, and the connecting terminal is used for being electrically connected with electric equipment; and the heat dissipation fan is arranged on the battery body, is electrically connected to the connecting terminal, and is used for carrying out heat dissipation on the battery body. According to the battery device provided by the embodiment of the invention, the compactness and the portability of the electric equipment can be improved.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a battery device and an electric equipment. BACKGROUND

[0002] A battery device is usually arranged in an electric equipment to perform charging and discharging work of the electric equipment, but a large amount of heat is generated in the battery device during the charging and discharging process, which shortens the service life of the battery device and devices in the electric equipment.

[0003] In the prior art, a heat dissipation fan is usually arranged on the battery device, and the heat dissipation fan and the battery device are electrically connected to system terminals of the electric equipment through connection terminals to achieve the heat dissipation function of the battery device. However, the multiple connection terminals occupy a large amount of installation space of the electric equipment, which reduces the space utilization rate and further affects the compactness and portability of the electric equipment. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a battery device and an electric equipment to solve the problem that the existing battery device occupies a large amount of installation space of the electric equipment and reduces the space utilization rate.

[0005] To solve the above technical problem, the application is implemented as follows:

[0006] In a first aspect, the application discloses a battery device applied to an electronic equipment, the battery device has a first direction, a second direction and a third direction intersecting with each other, and the battery device comprises:

[0007] a battery body, the battery body is provided with a connection terminal, the connection terminal is used for electrically connecting with an electric equipment;

[0008] and a heat dissipation fan, the heat dissipation fan is arranged on the battery body and is electrically connected to the connection terminal, and the heat dissipation fan is used for dissipating heat of the battery body.

[0009] Optionally, the battery body comprises a plurality of battery cells and a protection plate, the plurality of battery cells are electrically connected to the protection plate, and the connection terminal is arranged on the protection plate and is electrically connected to the protection plate.

[0010] The heat dissipation fan comprises a fan body and a connector, the connector is electrically connected to the fan body, the connector is arranged on the protection plate and is electrically connected to the protection plate, so that the connector is electrically connected to the connection terminal through the protection plate.

[0011] Optionally, the protection plate comprises a first surface and a second surface arranged away from each other along the third direction, the connector is arranged on the first surface, and the connection terminal is arranged on the second surface.

[0012] Optionally, the protective plate has a projection surface along a third direction, and the projection of the connector along the third direction onto the projection surface is spaced apart from the projection of the connection terminal along the third direction onto the projection surface.

[0013] Optionally, the battery body further includes a housing, a plurality of battery cells are arranged side by side in the housing along the first direction, and a protection plate is disposed on one side of the plurality of battery cells along the second direction and extends in the housing along the first direction;

[0014] The housing has an opening on one side along the second direction, and the connection terminal is exposed at the opening.

[0015] Optionally, the housing includes a first housing and a second housing, which are stacked along the third direction and form a receiving cavity. A plurality of battery cells and the protection plate are disposed in the receiving cavity. The second housing is provided with a receiving groove, and the fan body is disposed in the receiving groove. The first housing is provided with an opening on one side along the second direction.

[0016] Optionally, the cooling fan further includes a connecting wire, one end of which is electrically connected to the fan body, and the other end of which passes through the second housing and is electrically connected to the connector.

[0017] Optionally, the connection terminal is a male connection terminal or a female connection terminal.

[0018] Secondly, this application also discloses an electrical device, including: the battery device described in any of the above claims.

[0019] Optionally, the electrical equipment further includes a control module electrically connected to the battery device, the control module being used to control the rotation and stop of the cooling fan.

[0020] In this embodiment, by electrically connecting the cooling fan to a connection terminal on the battery body, the battery body and the cooling fan can be electrically connected to the electrical device through the same connection terminal. This way, only one connection terminal is needed to connect the battery device and the cooling fan to the electrical device, reducing the installation space occupied by the connection terminal, improving space utilization, and thus enhancing the compactness and portability of the electrical device.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a battery device according to an embodiment of this application;

[0024] Figure 2 This is an exploded schematic diagram of a battery device described in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a battery device according to an embodiment of this application from one perspective;

[0026] Figure 4 This is a schematic diagram of the structure of a battery device shown in an embodiment of this application from another perspective;

[0027] Figure 5 This is one of the internal structural schematic diagrams of a battery device shown in the embodiments of this application;

[0028] Figure 6 This is a second schematic diagram of the internal structure of a battery device shown in an embodiment of this application.

[0029] Reference numerals: 1 - Battery body; 10 - Connecting terminal; 11 - Battery cell; 12 - Protection board; 120 - First surface; 121 - Second surface; 13 - Housing; 130 - First housing; 1301 - Opening; 131 - Second housing; 1311 - Receiving slot; 2 - Cooling fan; 20 - Fan body; 21 - Connector; 22 - Connecting wire; Y - First direction; Z - Second direction; X - Third direction. Detailed Implementation

[0030] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0031] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] This application provides a battery device, specifically, the battery device can be used in electrical equipment. The battery device in this application embodiment will be described in detail below with reference to the accompanying drawings.

[0035] Reference Figure 1 , Figure 1 A schematic diagram of the structure of a battery device according to an embodiment of this application is shown; refer to Figure 2 , Figure 2 An exploded schematic diagram of a battery device according to an embodiment of this application is shown; see reference Figure 3 , Figure 3 This illustration shows a structural schematic diagram of a battery device according to an embodiment of this application from one perspective;

[0036] Figure 4 This paper shows a schematic diagram of the structure of a battery device according to an embodiment of this application from another perspective; see reference. Figure 5 , Figure 5 This application shows one of the internal structural schematic diagrams of a battery device according to an embodiment of the present application; see reference. Figure 6 , Figure 6 This is a second schematic diagram of the internal structure of a battery device according to an embodiment of this application.

[0037] like Figure 1 - Figure 6As shown in the figure, this application discloses a battery device, which includes: a battery body 1, the battery body 1 having a connection terminal 10 for electrical connection with an electrical device; and a cooling fan 2, the cooling fan 2 being disposed on the battery body 1 and electrically connected to the connection terminal 10, the cooling fan 2 being used to dissipate heat from the battery body 1. Further, the connection terminal 10 can be a male terminal or a female terminal.

[0038] Specifically, when the connection terminal 10 on the battery body 1 is a male connection terminal, the electrical device is provided with a female connection terminal. When the connection terminal 10 on the battery body 1 is a female connection terminal, the electrical device is provided with a male connection terminal. When the male connection terminal is inserted into the corresponding female connection terminal, the battery body 1 can be electrically connected to the electrical device, and the electrical device can be charged and discharged through the battery body 1.

[0039] The cooling fan 2 is electrically connected to the connection terminal 10. When the connection terminal 10 is electrically connected to the electrical device, the electrical device can provide current and control signals to the cooling fan 2 through the connection terminal 10, so that the cooling fan 2 can rotate, thereby realizing the heat dissipation of the battery body 1.

[0040] In this embodiment, by electrically connecting the cooling fan 2 to the connection terminal 10 on the battery body 1, the battery body 1 and the cooling fan 2 can be electrically connected to the electrical device through the same connection terminal 10. In this way, only one connection terminal 10 is needed to connect the battery device and the cooling fan 2 to the electrical device, reducing the installation space occupied by the connection terminal 10, improving space utilization, and thus improving the compactness and portability of the electrical device.

[0041] Specifically, the first direction Y, the second direction Z, and the third direction X are preferably perpendicular to each other. Specifically, in the embodiments of this application, the first direction Y is the length direction of the battery device, such as... Figure 1 As shown in the Y direction, the second direction Z is the height direction of the battery device, as shown in the figure. Figure 1 As shown in the Z direction, the third direction X is the thickness direction of the battery device, as... Figure 1 The X-axis direction shown above, and the three directions mentioned above, are applicable to subsequent embodiments.

[0042] Optionally, the battery body 1 includes a plurality of battery cells 11 and a protection board 12. The plurality of battery cells 11 are electrically connected to the protection board 12. The connection terminal 10 is disposed on the protection board 12 and electrically connected to the protection board 12. The cooling fan 2 includes a fan body 20 and a connector 21. The connector 21 is electrically connected to the fan body 20. The connector 21 is disposed on the protection board 12 and electrically connected to the protection board 12, so that the connector 21 is electrically connected to the connection terminal 10 through the protection board 12.

[0043] Specifically, the protection board 12 consists of a circuit board and multiple components mounted on the circuit board. The protection board 12 is connected to multiple battery cells 11 and is used to monitor and manage the status of the battery body 1, ensuring the safety of the battery body 1 during charging and discharging. Specifically, it may include functions such as overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, and temperature protection. It should be noted that the specific shape and structure of the protection board 12 can be specifically set according to actual conditions, and this embodiment does not impose specific limitations on it.

[0044] Multiple battery cells 11 are arranged side by side. One end of each battery cell 11 has a positive and a negative tab, both of which are electrically connected to a protection board 12. This allows the multiple battery cells 11 to be connected in series or in parallel. It should be noted that the number of battery cells 11 can be 2, 3, 4, etc., depending on the specific requirements. Figure 2 In this embodiment of the application, the battery device may include four battery cells 11.

[0045] The cooling fan 2 includes a fan body 20 and a connector 21 electrically connected to the fan body 20. The fan body 20 can rotate and close, realizing the cooling function of the cooling fan 2 for the battery body 1. The connector 21 is disposed on the protection board 12 and electrically connected to the protection board 12. It can then be electrically connected to the connection terminal 10 through the protection board 12, so as to electrically connect the fan body 20 to the electrical device through the connection terminal 10. Specifically, the control signal in the electrical device is transmitted to the connector 21 through the connection terminal 10 and the protection board 12. The connector 21 receives the control signal and transmits it to the fan body 20, controlling the rotation and closing of the fan body 20 through the control signal. The connector 21 is only used for control signal connection, does not require overcurrent protection, and will not affect the design of the battery protection board 12.

[0046] In this embodiment, by placing the connector 21 of the cooling fan 2 on the protection plate 12 and electrically connecting it to the protection plate 12, the complexity of the electrical connection is further simplified. By integrating the connector 21 of the cooling fan 2 onto the protection plate 12, the overall battery device has a higher degree of integration, a more compact structure, and is easier to install and maintain. Only one connection terminal 10 is needed to connect the battery body 1, the cooling fan 2, and the electrical equipment, reducing the number of connection terminals 10 and improving space utilization.

[0047] Optionally, the protection plate 12 includes a first surface 120 and a second surface 121 disposed opposite to each other along a third direction X. The connector 21 is disposed on the first surface 120, and the connection terminal 10 is disposed on the second surface 121. In practical applications, disposing of the connector 21 and the connection terminal 10 on two different surfaces of the protection plate 12 can effectively utilize space, reduce the size of the battery device along the third direction X, make the entire battery device more compact, and thus reduce the installation space occupied by the battery device along the third direction X, improving space utilization.

[0048] Optionally, the protective plate 12 has a projection surface along a third direction X. The projection of the connector 21 along the third direction X onto this projection surface is spaced apart from the projection of the connecting terminal 10 along the third direction X onto this projection surface. In practical applications, by making the projections of the connector 21 and the connecting terminal 10 along the third direction X spaced apart, overlap between the connector 21 and the connecting terminal 10 along the third direction X can be avoided. This further reduces the size of the battery device along the third direction X, making the entire battery device more compact, and further reducing the installation space occupied by the battery device along the third direction X, thus improving space utilization.

[0049] Optionally, the battery body 1 further includes a housing 13, in which a plurality of battery cells 11 are arranged side by side along the first direction Y within the housing 13, and a protection plate 12 is disposed on one side of the plurality of battery cells 11 along the second direction Z and extends within the housing 13 along the first direction Y; the housing 13 is provided with an opening 1301 on one side along the second direction Z, and the connection terminal 10 is exposed at the opening 1301.

[0050] Specifically, the housing 13 has a receiving cavity. The housing 13 can be a one-piece structure or a split structure. The battery cell 11 and the protection board 12 are disposed in the receiving cavity, thereby protecting the battery cell 11 and the protection board 12 through the housing 13, preventing the external environment from affecting the battery device, and improving the overall durability and reliability.

[0051] In practical applications, by arranging multiple battery cells 11 side by side in the housing 13 along the first direction Y, and the protection plate 12 is arranged on one side of the multiple battery cells 11 along the second direction Z, the battery cells 11 and the protection plate 12 can be arranged more compactly, thereby reducing the volume of the entire battery device, thereby reducing the installation space occupied by the battery device and improving space utilization.

[0052] Since the protection plate 12 is located on the side of the battery cell 11 near the second direction Z, the housing 13 is correspondingly provided with an opening 1301 on the side near the second direction Z, and the connection terminal 10 is exposed at the opening 1301. This facilitates the operation of connecting the battery device to the electrical equipment, and makes it easy to inspect and maintain the connection terminal 10, reducing the steps of disassembling the housing 13 and improving the convenience of maintenance.

[0053] Optionally, the housing 13 includes a first housing 130 and a second housing 131, which are stacked along the third direction X. The first housing 130 and the second housing 131 form a receiving cavity, in which a plurality of battery cells 11 and the protection plate 12 are disposed. The second housing 131 is provided with a receiving groove 1311, and the fan body 20 is disposed in the receiving groove 1311. The first housing 130 is provided with an opening 1301 on one side along the second direction Z.

[0054] like Figure 1 - Figure 6 As shown, the housing 13 includes a first housing 130 and a second housing 131, which are detachably connected. Specifically, they can be connected by bolts, snap-fit ​​connections, or any other detachable connection method. The first housing 130 and the second housing 131 are stacked along a third direction X, forming a cavity to accommodate the battery cell 11 and the protection board 12. By designing the housing 13 as a modular structure, the size and position of the first housing 130 and the second housing 131 can be adjusted according to actual needs, making the use of internal space more flexible and efficient. The modular structure allows each part to be manufactured and assembled separately, reducing the complexity of the overall structure and lowering the assembly difficulty.

[0055] like Figure 1 , Figure 2 , Figure 3As shown, the second housing 131 is provided with a receiving groove 1311. The shape and size of the receiving groove 1311 are adapted to the shape and size of the fan body 20, so that the fan body 20 can be fixedly installed in the receiving groove 1311. Specifically, it can be fixed by means of dispensing, snap-fitting, etc. In practical applications, by setting the fan body 20 in the receiving groove 1311, compared with setting the fan body 20 outside the battery body 1, the space occupied by the fan body 20 can be avoided, making the structure of the battery device more compact and further reducing the size of the battery device.

[0056] It should be noted that, since there can be multiple battery cells 11, the position of the receiving slot 1311 can be arbitrarily set, and it can be set in, for example... Figure 3 The middle position of the four cells 11 shown can also be set in other positions, depending on the specific circumstances.

[0057] Optionally, the cooling fan 2 further includes a connecting wire 22, one end of which is electrically connected to the fan body 20, and the other end passes through the second housing 131 and is electrically connected to the connector 21.

[0058] Specifically, such as Figure 2 - Figure 6 As shown, one end of the connecting wire 22 is connected to the fan body 20. Since the connector 21 is located on the protective plate 12, and the protective plate 12 is located inside the second housing 131, a through hole can be provided on the side of the second housing 131 near the connector 21, through which the other end of the connecting wire passes and is electrically connected to the connector 21. In practical applications, connecting the connecting wire 22 from inside the second housing 131 to the protective plate 12 of the battery body 1 eliminates the need for fixing devices such as clips on the battery housing 22 compared to routing the fan connecting wire 22 from outside the battery device. This reduces the volume of the battery housing 13, thereby improving space utilization. Furthermore, eliminating the fixing device reduces the design difficulty and cost of the battery housing 13.

[0059] In summary, the battery device described in the embodiments of this application may include at least the following advantages:

[0060] In this embodiment, by electrically connecting the cooling fan 2 to the connection terminal 10 on the battery body 1, the battery body 1 and the cooling fan 2 can be electrically connected to the electrical device through the same connection terminal 10. In this way, only one connection terminal 10 is needed to connect the battery device and the cooling fan 2 to the electrical device, reducing the installation space occupied by the connection terminal 10, improving space utilization, and thus improving the compactness and portability of the electrical device.

[0061] This application also discloses an electrical device, including: the battery device described in any of the above embodiments.

[0062] Specifically, when the connection terminal 10 on the battery body 1 is a male connection terminal, the electrical device has a female connection terminal; when the connection terminal 10 on the battery body 1 is a female connection terminal, the electrical device has a male connection terminal. The male connection terminal is inserted into the corresponding female connection terminal to electrically connect the system end of the electrical device to the battery device. Since only one connection terminal 10 needs to be set in the battery device, and only one connection terminal 10 needs to be set in the corresponding system end, compared with the solution that requires separate connection terminals 10 for the cooling fan 2 and the battery device on the system end, the number of connection terminals 10 on the system end of the electrical device can be reduced. This not only reduces the installation space occupied by the battery device, but also reduces the design difficulty and cost of the electrical device system end.

[0063] Electrical equipment may include, but is not limited to, laptops, desktop computers, mobile phones, electric vehicles, electric motorcycles, etc.

[0064] It should be noted that in this embodiment, the structure of the battery device is the same as that of the battery device in any of the above embodiments, and its beneficial effects are similar, so it will not be described in detail here.

[0065] Optionally, the electrical equipment further includes a control module electrically connected to the battery device, the control module being used to control the rotation and stop of the cooling fan 2.

[0066] Specifically, the control module is located at the system end of the electrical equipment. It is electrically connected to the battery via connection terminal 10, and further electrically connected to the cooling fan 2 via the protection board 12 and connector 21. Thus, the control module can send a control signal to the cooling fan 2 via connection terminal 10. This signal is transmitted to the fan body 20 via the protection board 12 and connector 21, controlling the fan body 20 to rotate or stop. This allows the fan body 20 to be turned on when continued cooling of the battery is needed and turned off when cooling is no longer required, achieving intelligent control.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery device for use in an electronic device, the battery device having a first direction (Y), a second direction (Z), and a third direction (X) that intersect each other in pairs, characterized in that, The battery device includes: The battery body (1) is provided with a connection terminal (10) for electrical connection with electrical equipment; And a cooling fan (2), which is disposed on the battery body (1) and electrically connected to the connection terminal (10), and the cooling fan (2) is used to dissipate heat from the battery body (1).

2. The battery device according to claim 1, characterized in that, The battery body (1) includes multiple battery cells (11) and a protection board (12). The multiple battery cells (11) are electrically connected to the protection board (12). The connection terminal (10) is disposed on the protection board (12) and electrically connected to the protection board (12). The cooling fan (2) includes a fan body (20) and a connector (21). The connector (21) is electrically connected to the fan body (20). The connector (21) is disposed on the protection plate (12) and electrically connected to the protection plate (12) so as to electrically connect the connector (21) to the connection terminal (10) through the protection plate (12).

3. The battery device according to claim 2, characterized in that, The protective plate (12) includes a first surface (120) and a second surface (121) disposed opposite each other in a third direction (X), the connector (21) is disposed on the first surface (120), and the connection terminal (10) is disposed on the second surface (121).

4. The battery device according to claim 3, characterized in that, The protective plate (12) has a projection surface along a third direction (X), and the projection of the connector (21) along the third direction (X) onto the projection surface is spaced apart from the projection of the connection terminal (10) along the third direction (X) onto the projection surface.

5. The battery device according to claim 2, characterized in that, The battery body (1) also includes a housing (13), and a plurality of battery cells (11) are arranged side by side in the housing (13) along the first direction (Y). The protection plate (12) is disposed on one side of the plurality of battery cells (11) along the second direction (Z) and extends in the housing (13) along the first direction (Y). The housing (13) has an opening (1301) on one side along the second direction (Z), and the connecting terminal (10) is exposed at the opening (1301).

6. The battery device according to claim 5, characterized in that, The housing (13) includes a first housing (130) and a second housing (131). The first housing (130) and the second housing (131) are stacked along the third direction (X). The first housing (130) and the second housing (131) form a receiving cavity. A plurality of the battery cells (11) and the protection plate (12) are disposed in the receiving cavity. The second housing (131) is provided with a receiving groove (1311). The fan body (20) is disposed in the receiving groove (1311). The first housing (130) is provided with an opening (1301) on one side along the second direction (Z).

7. The battery device according to claim 6, characterized in that, The cooling fan (2) also includes a connecting wire (22), one end of which is electrically connected to the fan body (20), and the other end passes through the second housing (131) and is electrically connected to the connector (21).

8. The battery device according to any one of claims 1-7, characterized in that, The connection terminal (10) can be a male terminal or a female terminal.

9. An electrical appliance, characterized in that, include: The battery device according to any one of claims 1-8.

10. The electrical equipment according to claim 9, characterized in that, The electrical equipment further includes a control module, which is electrically connected to the battery device and is used to control the rotation and stop of the cooling fan (2).