Battery cover, battery device and electronic equipment

By designing a switchable battery cover structure, the problem of battery size mismatch in the prior art is solved, flexible adaptation of batteries of different lengths is achieved, and production costs and compatibility requirements are reduced.

CN222705728UActive Publication Date: 2025-04-01HEFEI YINGJU INNOVATION TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421031441.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-13
Publication Date
2025-04-01
Estimated Expiration
2034-05-13

AI Technical Summary

Technical Problem

When using batteries of different sizes, existing electronic devices require complex compatible structures and high production costs, and can only be compatible with batteries of different lengths and diameters, which is inconvenient to use.

Method used

A switchable battery cover structure is designed, and the top cover is switched at different connection positions on the connecting sleeve, adapting to batteries of different lengths, simplifying the compatible structure and reducing production costs.

Benefits of technology

It realizes flexible adaptation of batteries of different lengths, reduces product compatibility requirements and use complexity, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222705728U_ABST
    Figure CN222705728U_ABST
Patent Text Reader

Abstract

The utility model discloses a battery cover, a battery device and electronic equipment, and relates to the technical field of battery devices, the battery cover comprises a connecting sleeve and a top cover, the connecting sleeve is internally provided with a mounting part, and the mounting part is used for mounting a first electrode spring and a second electrode spring; the distance between the first electrode spring and the end face, close to the first electrode spring, of the connecting sleeve is different from the distance between the second electrode spring and the end face, close to the second electrode spring, of the connecting sleeve, and the two ends of the connecting sleeve are provided with a first connecting part and a second connecting part which are used for being connected with the top cover respectively. When the top cover is connected to the first connecting part, the battery cover is matched with the first battery, and when the top cover is connected to the second connecting part, the battery cover is matched with the second battery which is different from the first battery in length. According to the battery cover, the compatibility and the use convenience of a product are improved, meanwhile, only the connecting position of the top cover on the connecting sleeve needs to be changed when the forward and reverse structures are switched, the operation is simple and convenient, and the production cost is greatly reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] At present, electronic devices are often powered by removable batteries. When electronic devices are powered by removable batteries, the battery used by the user often does not match the battery size required by the device, so the device needs to have strong compatibility with batteries of different sizes.

[0003] In the existing system, electronic devices use a battery compartment that can realize the interchange of two different types of batteries. Specifically, the electronic device divides the battery cavity in the compartment body into a small battery cavity and a large battery cavity with different diameters and lengths along the axial direction according to the diameters and lengths of the two different types of batteries, so that two small-diameter batteries or one large-diameter battery can be loaded into one battery cavity as needed, and the length difference between the two batteries when in use is compensated by setting a conductive electrode. However, the setting method of dividing the battery cavity in the compartment body into a small battery cavity and a large battery cavity with different diameters and lengths along the axial direction not only leads to a complex battery compartment compatible structure and high production cost, but also the compatible batteries must be batteries of different lengths and diameters, with high requirements for the compatible type, and inconvenient use. Utility Model Content

[0004] The purpose of the present application is to provide a battery cover, a battery device and an electronic device. The battery cover has a simple structure, low production cost, is compatible with batteries of different lengths, and has high application flexibility.

[0005] To achieve the above-mentioned object, the present application provides a battery cover, including a connecting sleeve, wherein a mounting portion is provided inside the connecting sleeve, and the mounting portion is used to mount a first electrode spring and a second electrode spring, so that the distance between the first electrode spring and an end surface of the connecting sleeve close to the first electrode spring is different from the distance between the second electrode spring and an end surface of the connecting sleeve close to the second electrode spring;

[0006] It also includes a top cover, and the two ends of the connecting sleeve are respectively provided with a first connecting part and a second connecting part for connecting the top cover, and the top cover is configured as follows: when the top cover is connected to the first connecting part, the second connecting part is used to connect to the battery compartment so that the second electrode spring abuts against the first battery; when the top cover is connected to the second connecting part, the first connecting part is used to connect to the battery compartment so that the first electrode spring abuts against the second battery, and the second battery has a different length from the first battery.

[0007] In some embodiments, the top cover is movably embedded in the first connecting portion or the second connecting portion.

[0008] In some embodiments, the first connection portion and the second connection portion are both external threads, and the top cover is provided with internal threads, and the internal threads cooperate with the external threads so that the top cover can be screwed to the first connection portion or the second connection portion.

[0009] In some embodiments, the battery cover also includes a first sealing ring and a second sealing ring, which are installed on the connecting sleeve. The top cover is provided with an extension portion extending along the axial direction. The first sealing ring is used to abut against the extension portion when the top cover is connected to the first connecting portion to seal the gap between the top cover and the connecting sleeve. The second sealing ring is used to abut against the extension portion when the top cover is connected to the second connecting portion to seal the gap between the top cover and the connecting sleeve.

[0010] In some embodiments, the connecting sleeve is provided with a first mounting groove and a second mounting groove, the first mounting groove is used to install the first sealing ring, and the second mounting groove is used to install the second sealing ring, the first mounting groove is located on the side of the first connecting part close to the second connecting part, and the radial dimension of the first mounting groove is smaller than the radial dimension of the first sealing ring, the second mounting groove is located on the side of the second connecting part close to the first connecting part, and the radial dimension of the second mounting groove is smaller than the radial dimension of the second sealing ring.

[0011] In some embodiments, the battery cover also includes a first vibration-damping buffer pad and a second vibration-damping buffer pad, and the mounting portion is provided with a third mounting groove and a fourth mounting groove, the third mounting groove is used to install the first vibration-damping buffer pad, and the fourth mounting groove is used to install the second vibration-damping buffer pad.

[0012] In some embodiments, the mounting portion is provided with a first fixing groove and a second fixing groove, the first electrode spring is fixed in the first fixing groove, the second electrode spring is fixed in the second fixing groove, and the first electrode spring and the second electrode spring extend out of the mounting portion along two sides respectively.

[0013] In some embodiments, the battery cover further includes a limiting ring, the connecting sleeve is provided with a third connecting portion located between the first connecting portion and the second connecting portion, and the limiting ring is fixedly connected to the third connecting portion.

[0014] The present application also provides a battery device, including a battery compartment for accommodating a battery, and also including any of the above-mentioned battery covers, the battery cover being installed in the battery compartment.

[0015] The present application also provides an electronic device, comprising the above-mentioned battery device.

[0016] With respect to the above-mentioned background technology, the battery cover provided in the embodiment of the present application includes a connecting sleeve and a top cover, wherein a mounting portion is provided inside the connecting sleeve, and the mounting portion is used to install a first electrode spring and a second electrode spring, so that the distance between the first electrode spring and the end face of the connecting sleeve close to the first electrode spring is different from the distance between the second electrode spring and the end face of the connecting sleeve close to the second electrode spring. At the same time, the two ends of the connecting sleeve are respectively provided with a first connecting portion and a second connecting portion for connecting the top cover. When the top cover is connected to the first connecting portion, the second connecting portion is used to connect to the battery compartment so that the second electrode spring abuts against the first battery. When the top cover is connected to the second connecting portion, the first connecting portion is used to connect to the battery compartment so that the first electrode spring abuts against the second battery. The length of the second battery is different from that of the first battery.

[0017] It can be understood that by connecting the top cover to the first connection part, a battery cover with a positive structure can be assembled. When the battery cover with the positive structure is used, it is connected to the battery compartment through the second connection part. In this way, the second electrode spring on the same side as the second connection part can abut against the first battery to achieve electrical connection, so that the battery cover can be adapted to the first battery; by connecting the top cover to the second connection part, a battery cover with a reverse structure can be assembled. When the battery cover with the reverse structure is used, it is connected to the battery compartment through the first connection part. In this way, the first electrode spring on the same side as the first connection part can abut against the second battery to achieve electrical connection, so that the battery cover can be adapted to the second battery. Since the lengths of the second battery and the first battery are different, the battery cover with a positive structure and the battery cover with a reverse structure can adapt to batteries of different lengths.

[0018] Compared with the traditional improvements on the battery compartment, the present application turns to improve the structure of the battery cover. By using a battery cover that can switch between the forward structure and the reverse structure to adapt to batteries of different lengths, compared with the compatible batteries that must be batteries of different lengths and diameters, the compatible type requirements of the battery cover are low, which increases the compatibility and ease of use of the product; at the same time, the forward and reverse battery cover structures are switched by hand-tightening the top cover. When switching, you only need to change the connection position of the top cover on the connecting sleeve without the aid of tools. The compatible structure is simple, the operation is simple and convenient, and the production cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 An exploded view of a battery cover in an embodiment of the present application;

[0021] Figure 2 It is a cross-sectional view of a battery cover of a forward structure in an embodiment of the present application;

[0022] Figure 3 A cross-sectional view of a battery cover with an inverted structure in an embodiment of the present application;

[0023] Figure 4 for Figure 2 The schematic diagram of the assembly of the battery cover and the battery compartment of the forward structure is shown;

[0024] Figure 5 for Figure 3 Schematic diagram of the assembly of the reverse structure battery cover and battery compartment.

[0025] in:

[0026] 10-Battery cover;

[0027] 11-connecting sleeve, 111-installing portion, 1111-first fixing groove, 1112-second fixing groove, 1113-third installing groove, 1114-fourth installing groove, 112-first connecting portion, 113-second connecting portion, 114-first installing groove, 115-second installing groove, 116-third connecting portion;

[0028] 12- first electrode spring;

[0029] 13- second electrode spring;

[0030] 14-top cover, 141-extension part;

[0031] 15- first sealing ring;

[0032] 16- second sealing ring;

[0033] 17- first vibration damping cushion;

[0034] 18- second vibration damping cushion;

[0035] 19-limiting ring, 191-anti-slip surface;

[0036] 20-battery compartment;

[0037] 21- first battery;

[0038] 22- Second battery. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] See also Figure 1 The battery cover 10 provided in the embodiment of the present application includes a connecting sleeve 11, a top cover 14, a first electrode spring 12 and a second electrode spring 13.

[0042] To facilitate installation of the first electrode spring 12 and the second electrode spring 13, a mounting portion 111 is provided inside the connecting sleeve 11, and the mounting portion 111 is used to install the first electrode spring 12 and the second electrode spring 13. Specifically, the first electrode spring 12 and the second electrode spring 13 are respectively installed at both ends of the mounting portion 111 along the axial direction, and the first electrode spring 12 and the second electrode spring 13 extend out of the mounting portion 111 from both sides, so that the distance between the first electrode spring 12 and the end surface of the connecting sleeve 11 close to the first electrode spring 12 is different from the distance between the second electrode spring 13 and the end surface of the connecting sleeve 11 close to the second electrode spring 13.

[0043] For example, the distance between the first electrode spring 12 and the end surface (upper end surface) of the connecting sleeve 11 close to the first electrode spring 12 is smaller than the distance between the second electrode spring 13 and the end surface (lower end surface) of the connecting sleeve 11 close to the second electrode spring 13. Here, the mounting portion 111 is arranged to be closer to the upper end surface of the connecting sleeve 11, so that the above distance difference can be achieved.

[0044] In addition, two ends of the connecting sleeve 11 are respectively provided with a first connecting portion 112 and a second connecting portion 113 for connecting to the top cover 14 .

[0045] When the top cover 14 is connected to the first connecting portion 112, the second connecting portion 113 is used to connect the battery compartment 20 so that the second electrode spring 13 abuts against the first battery 21. When the top cover 14 is connected to the second connecting portion 113, the first connecting portion 112 is used to connect the battery compartment 20 so that the first electrode spring 12 abuts against the second battery 22. The lengths of the second battery 22 and the first battery 21 are different.

[0046] It can be understood that by connecting the top cover 14 to the first connecting portion 112, a battery cover 10 with a positive structure can be assembled. When the battery cover 10 with a positive structure is used, it is connected to the battery compartment 20 through the second connecting portion 113. In this way, the second electrode spring 13 on the same side as the second connecting portion 113 can abut against the first battery 21 to achieve electrical connection, so that the battery cover 10 can be adapted to the first battery 21; by connecting the top cover 14 to the second connecting portion 113, a battery cover 10 with a reverse structure can be assembled. When the battery cover 10 with a reverse structure is used, it is connected to the battery compartment 20 through the first connecting portion 112. In this way, the first electrode spring 12 on the same side as the first connecting portion 112 can abut against the second battery 22 to achieve electrical connection, so that the battery cover 10 can be adapted to the second battery 22. Since the second battery 22 and the first battery 21 have different lengths, the battery cover 10 with a positive structure and the battery cover 10 with a reverse structure can be adapted to batteries of different lengths.

[0047] Compared with the traditional improvements on the battery compartment 20, the present application turns to improve the structure of the battery cover 10. By using a battery cover 10 that can switch between the forward structure and the reverse structure to adapt to batteries of different lengths, compared with the compatible batteries that must be batteries of different lengths and diameters, the compatible type requirements of the battery cover 10 are low, which increases the compatibility and ease of use of the product; at the same time, the forward and reverse battery cover 10 structures are switched by manually twisting the top cover 14. When switching, it is only necessary to change the connection position of the top cover 14 on the connecting sleeve 11 without the aid of tools. The compatible structure is simple, the operation is simple and convenient, and the production cost is greatly reduced.

[0048] The top cover 14 is configured to be movably embedded / detachably connected to the first connection part 112 or the second connection part 113. Both the first connection part 112 and the second connection part 113 can be configured as a detachably connected structure, such as a threaded structure or a snap-fit ​​structure.

[0049] In some embodiments, the connection method between the top cover 14 and the connecting sleeve 11 can be a threaded connection. Specifically, the first connecting part 112 and the second connecting part 113 are both external threads. Correspondingly, the top cover 14 is provided with an internal thread, and the internal thread cooperates with the external thread so that the top cover 14 can be screwed to the first connecting part 112 or the second connecting part 113.

[0050] It should be noted that the internal thread of the top cover 14 needs to be adapted to the external threads at both ends of the connecting sleeve 11 at the same time. The connecting sleeve 11 with a bidirectional thread structure is a bidirectional screw sleeve structure. When the structure of the battery cover 10 needs to be changed, it is only necessary to unscrew the top cover 14 on the thread at one end of the connecting sleeve 11 and screw it into the thread at the other end of the connecting sleeve 11. At this time, the battery cover 10 can be switched from one structure to another.

[0051] It can be understood that since the threads of the upper and lower parts of the connecting sleeve 11 are the same, the top cover 14 can be adapted to the threads at both ends at the same time, thereby being assembled into positive and negative structures, and the distances from the electrode springs to the end faces of the positive and negative structures are different, so that batteries of different lengths can be adapted.

[0052] To ensure the sealing of the connection between the top cover 14 and the connecting sleeve 11, the battery cover 10 also includes a first sealing ring 15 and a second sealing ring 16. The first sealing ring 15 and the second sealing ring 16 are installed on the connecting sleeve 11. The top cover 14 is provided with an extension portion 141 extending along the axial direction. When the top cover 14 is connected to the first connecting portion 112, the first sealing ring 15 is used to abut against the extension portion 141 to seal the gap between the top cover 14 and the connecting sleeve 11. When the top cover 14 is connected to the second connecting portion 113, the second sealing ring 16 is used to abut against the extension portion 141 to seal the gap between the top cover 14 and the connecting sleeve 11.

[0053] Please also read Figure 2 In order to facilitate the installation of the first sealing ring 15 and the second sealing ring 16 on the connecting sleeve 11, the connecting sleeve 11 is provided with a first mounting groove 114 and a second mounting groove 115. The first mounting groove 114 and the second mounting groove 115 are both annular grooves arranged along the circumferential direction of the connecting sleeve 11, wherein the first mounting groove 114 is used to install the first sealing ring 15, and the second mounting groove 115 is used to install the second sealing ring 16. The first mounting groove 114 is located on a side of the first connecting portion 112 close to the second connecting portion 113, and the radial dimension of the first mounting groove 114 is smaller than the radial dimension of the first sealing ring 15. The second mounting groove 115 is located on a side of the second connecting portion 113 close to the first connecting portion 112, and the radial dimension of the second mounting groove 115 is smaller than the radial dimension of the second sealing ring 16.

[0054] In this way, when the first sealing ring 15 is installed in the first installation groove 114, the first sealing ring 15 protrudes from the first installation groove 114, and when the top cover 14 is installed in the first connecting portion 112, the extending portion 141 of the top cover 14 presses against the first sealing ring 15, thereby the elastic deformation property of the first sealing ring 15 can be used to seal the gap between the top cover 14 and the connecting sleeve 11; when the second sealing ring 16 is installed in the second installation groove 115, the second sealing ring 16 protrudes from the second installation groove 115, and when the top cover 14 is installed in the second connecting portion 113, the extending portion 141 of the top cover 14 presses against the second sealing ring 16, thereby the elastic deformation property of the second sealing ring 16 can be used to seal the gap between the top cover 14 and the connecting sleeve 11.

[0055] It should be noted that when the battery cover 10 is installed and used, the top cover 14 needs to be screwed into place to press the corresponding sealing ring to achieve the desired sealing effect.

[0056] To prevent the battery in the battery compartment 20 from being damaged when the battery cover 10 is connected to the battery compartment 20 , the battery cover 10 further includes a first vibration-damping cushion 17 and a second vibration-damping cushion 18 , both of which are disposed inside the battery cover 10 .

[0057] Please also read Figure 2 The mounting portion 111 is provided with a third mounting groove 1113 and a fourth mounting groove 1114, and the third mounting groove 1113 and the fourth mounting groove 1114 are respectively arranged on two end faces of the mounting portion 111 along the axial direction, and the third mounting groove 1113 is used to install the first vibration-damping buffer pad 17, and the fourth mounting groove 1114 is used to install the second vibration-damping buffer pad 18.

[0058] When the battery cover 10 of the forward structure is installed in the battery compartment 20, the first vibration-damping buffer pad 17 is used to contact and abut against the first battery 21 in the battery compartment 20. When the battery cover 10 of the reverse structure is installed in the battery compartment 20, the second vibration-damping buffer pad 18 is used to contact and abut against the second battery 22 in the battery compartment 20, thereby preventing the battery in the battery compartment 20 from being damaged when the battery cover 10 is connected to the battery compartment 20.

[0059] Please also read Figure 2 In order to facilitate fixing the first electrode spring 12 and the second electrode spring 13, the mounting portion 111 is provided with a first fixing groove 1111 and a second fixing groove 1112, the first electrode spring 12 is fixed in the first fixing groove 1111, the second electrode spring 13 is fixed in the second fixing groove 1112, and the first electrode spring 12 and the second electrode spring 13 extend out of the mounting portion 111 along both sides respectively.

[0060] The shapes and structures of the first fixing groove 1111 and the second fixing groove 1112 are respectively adapted to the shapes and structures of the first electrode spring 12 and the second electrode spring 13 , and the first electrode spring 12 and the second electrode spring 13 can be welded and fixed in the first fixing groove 1111 and the second fixing groove 1112 , respectively.

[0061] Moreover, the battery cover 10 also includes a limiting ring 19, which is fixed at the middle position of the connecting sleeve 11, that is, the limiting ring 19 is fixed between the first connecting part 112 and the second connecting part 113, wherein the connecting sleeve 11 is provided with a third connecting part 116 located between the first connecting part 112 and the second connecting part 113, and the limiting ring 19 is fixedly connected to the third connecting part 116.

[0062] Of course, according to actual needs, the third connection part 116 can be set as an external threaded surface like the first connection part 112 or the second connection part 113, and the limiting ring 19 has an internal threaded surface. In this way, the limiting ring 19 can be threadedly connected to the middle part of the connecting sleeve 11 and fixed with thread glue.

[0063] In order to facilitate the operation of the limiting ring 19 and the top cover 14, the limiting ring 19 and the top cover 14 are both provided with an anti-slip surface 191. The anti-slip surface 191 can adopt a knurling structure.

[0064] Please also read Figure 2 When installing the battery cover 10, first install the first electrode spring 12 and the second electrode spring 13 at the two end positions of the mounting portion 111 in the connecting sleeve 11 respectively, then install the limit ring 19 to the middle thread of the connecting sleeve 11 and fix it with thread glue, then install the first sealing ring 15 and the second sealing ring 16 into the first mounting groove 114 and the second mounting groove 115 of the connecting sleeve 11 respectively, and finally screw the top cover 14 in from the top, and then assemble the battery cover 10 into the forward structure.

[0065] Please also read Figure 3 On the basis of the above-mentioned forward structure of the battery cover 10, the top cover 14 is screwed out and screwed into the other end of the connecting sleeve 11, and the battery cover 10 is assembled into a reverse structure.

[0066] Please also read Figure 4 When the battery cover 10 of the forward structure is installed in the battery compartment 20 , the second electrode spring 13 can abut against the first battery 21 to achieve electrical connection. At the same time, the first vibration-damping cushion 17 is used to contact and abut against the first battery 21 in the battery compartment 20 .

[0067] Please also read Figure 5 When the reverse structure battery cover 10 is installed in the battery compartment 20, the first electrode spring 12 can abut against the second battery 22 to achieve electrical connection. At the same time, the second vibration damping pad 18 is used to contact and abut against the second battery 22 in the battery compartment 20. The length of the second battery 22 is less than the length of the first battery 21.

[0068] It should be noted that when the battery cover 10 is screwed out, it is necessary to hold the limiting ring 19 to prevent the top cover 14 from being screwed out.

[0069] The present application provides a battery device, including a battery compartment 20 for accommodating a battery, and also including a battery cover 10 described in the above specific embodiment, wherein the battery cover 10 is installed in the battery compartment 20 .

[0070] An electronic device provided in the present application includes the battery device described in the above specific embodiments, and the electronic device includes but is not limited to night vision devices, imagers and other devices.

[0071] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0072] The battery cover, battery device and electronic device provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A battery cover, characterized in that: Comprising a connecting sleeve (11), wherein a mounting portion (111) is provided inside the connecting sleeve (11), and the mounting portion (111) is used to mount a first electrode spring (12) and a second electrode spring (13), so that the distance between the first electrode spring (12) and an end surface of the connecting sleeve (11) close to the first electrode spring (12) is different from the distance between the second electrode spring (13) and an end surface of the connecting sleeve (11) close to the second electrode spring (13); The invention also comprises a top cover (14), wherein two ends of the connecting sleeve (11) are respectively provided with a first connecting portion (112) and a second connecting portion (113) for connecting the top cover (14), and the top cover (14) is configured such that: when the top cover (14) is connected to the first connecting portion (112), the second connecting portion (113) is used to connect to the battery compartment (20), so that the second electrode spring (13) abuts against the first battery (21); and when the top cover (14) is connected to the second connecting portion (113), the first connecting portion (112) is used to connect to the battery compartment (20), so that the first electrode spring (12) abuts against the second battery (22), and the second battery (22) and the first battery (21) have different lengths.

2. The battery cover according to claim 1, characterized in that: The top cover (14) is movably embedded in the first connecting portion (112) or the second connecting portion (113).

3. The battery cover according to claim 2, characterized in that: The first connection portion (112) and the second connection portion (113) are both external threads, and the top cover (14) is provided with internal threads, the internal threads cooperating with the external threads so that the top cover (14) is screwed to the first connection portion (112) or the second connection portion (113).

4. The battery cover according to claim 1, wherein: The battery cover (10) further comprises a first sealing ring (15) and a second sealing ring (16), wherein the first sealing ring (15) and the second sealing ring (16) are mounted on the connecting sleeve (11), and the top cover (14) is provided with an extension portion (141) extending along an axial direction, wherein the first sealing ring (15) is used to abut against the extension portion (141) when the top cover (14) is connected to the first connecting portion (112), so as to seal a gap between the top cover (14) and the connecting sleeve (11), and the second sealing ring (16) is used to abut against the extension portion (141) when the top cover (14) is connected to the second connecting portion (113), so as to seal a gap between the top cover (14) and the connecting sleeve (11).

5. The battery cover according to claim 4, characterized in that: The connecting sleeve (11) is provided with a first mounting groove (114) and a second mounting groove (115); the first mounting groove (114) is used to mount the first sealing ring (15); the second mounting groove (115) is used to mount the second sealing ring (16); the first mounting groove (114) is located on a side of the first connecting portion (112) close to the second connecting portion (113); the radial dimension of the first mounting groove (114) is smaller than the radial dimension of the first sealing ring (15); the second mounting groove (115) is located on a side of the second connecting portion (113) close to the first connecting portion (112); the radial dimension of the second mounting groove (115) is smaller than the radial dimension of the second sealing ring (16).

6. The battery cover according to claim 1, wherein: The battery cover (10) further comprises a first vibration-damping cushion (17) and a second vibration-damping cushion (18); the mounting portion (111) is provided with a third mounting groove (1113) and a fourth mounting groove (1114); the third mounting groove (1113) is used for mounting the first vibration-damping cushion (17); and the fourth mounting groove (1114) is used for mounting the second vibration-damping cushion (18).

7. The battery cover according to claim 1, wherein: The mounting portion (111) is provided with a first fixing groove (1111) and a second fixing groove (1112); the first electrode spring (12) is fixed in the first fixing groove (1111), the second electrode spring (13) is fixed in the second fixing groove (1112), and the first electrode spring (12) and the second electrode spring (13) respectively extend out of the mounting portion (111) along two sides.

8. The battery cover according to any one of claims 1 to 7, characterized in that: The battery cover (10) further comprises a limiting ring (19), the connecting sleeve (11) is provided with a third connecting portion (116) located between the first connecting portion (112) and the second connecting portion (113), and the limiting ring (19) is fixedly connected to the third connecting portion (116).

9. A battery device, comprising a battery compartment (20) for accommodating a battery, characterized in that: It also comprises a battery cover (10) according to any one of claims 1 to 8, wherein the battery cover (10) is installed in the battery compartment (20).

10. An electronic device, characterized in that: Comprising the battery device as claimed in claim 9.