Quick release mechanism, battery module and electrical equipment

Abstract

The present application provides a quick-release mechanism, a battery module, and an electrical device. In the quick-release mechanism, a locking rod and a button are slidably mounted on a base in different directions. When the button is released, the first elastic member acts on the locking rod so that the locking end of the locking rod extends out of the base, and the locking end extending out of the base can be engaged with the slot of the mounting seat, so that the quick-release structure is limited on the mounting seat. When the button is pressed, the first guide surface of the button pushes the locking rod so that the locking end of the locking rod retracts into the base, so that the locking end and the slot of the mounting seat are separated, and the quick-release mechanism can be separated from the mounting seat. The quick-release mechanism has a simple structure and low cost. The quick-release mechanism and the mounting seat with the slot can be quickly assembled and disassembled, and is easy to use. The quick-release mechanism is applied to the battery module and the electrical device to achieve quick assembly and disassembly between the battery module and the mounting seat with the slot, which facilitates the replacement of the battery module.

Description

Technical Field

[0001] The present application belongs to the technical field of quick-release lock structures, and in particular relates to a quick-release mechanism, a battery module, and an electrical device. Background Art

[0002] Some electrical devices require the disassembly and assembly of two components. For example, a battery module can be installed in a battery box, and the battery module and the battery box need to be quickly disassembled and assembled. Conventional technology secures the battery module to the battery box with screws, which are tightened using a screwdriver, making the disassembly and assembly process cumbersome. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a quick-release mechanism, a battery module, and an electrical device to solve the technical problem that the existing two components are difficult to operate during disassembly and assembly.

[0004] The embodiment of the present application provides a quick release mechanism for cooperating with a mounting base having a slot, the quick release mechanism comprising: a base, a locking rod, a button, and a first elastic member;

[0005] The locking rod can be slidably mounted on the base along a first direction, and the locking rod has a clamping end that can extend out of the base and engage with the clamping slot;

[0006] The first elastic member is extended along the first direction and is used to provide elastic force to the locking rod;

[0007] The button can be slidably mounted on the base along a second direction, and the button has a first guide surface;

[0008] When the button is pressed, the first guide surface pushes the locking rod to retract the clamping end into the base, and the first elastic member deforms and stores energy;

[0009] When the button is released, under the elastic force of the first elastic member, the locking rod moves and the clamping end extends out of the base, and the locking rod pushes the first guide surface to make the button pop up.

[0010] Optionally, the base has a guide groove extending along the second direction, the button has a guide rod extending along the second direction, and the guide rod is slidably mounted in the guide groove.

[0011] Optionally, it also includes a second elastic member arranged in the guide groove and used to provide elastic force to the guide rod, and the second elastic member extends along the second direction; when the button is pressed, the guide rod acts on the second elastic member to deform the second elastic member and store energy; when the button is released, the button is bounced up under the elastic force of the second elastic member.

[0012] Optionally, the locking rod has a through slot extending along the second direction, the guide rod is passed through the through slot, and the locking rod has a mating edge for abutting and mating with the first guide surface, and the mating edge is located at one end of the through slot.

[0013] Optionally, the base has a receiving groove and a first side wall and a second side wall arranged opposite to each other in the first direction, the first side wall has a first through hole for the clamping end to extend out, and the second side wall has a second through hole;

[0014] The quick-release mechanism also includes a sliding member that passes through the second through hole and is fixed to the locking rod. The end of the sliding member away from the locking rod is a limiting end. The limiting end is located outside the base. The limiting end is used to abut against the outer surface of the second side wall to limit the movement range of the sliding member.

[0015] Optionally, the first elastic member is a compression spring, which is sleeved outside the sliding member, and two ends of the compression spring are respectively abutted against the locking rod and the inner side surface of the second side wall.

[0016] Optionally, the sliding member outer sleeve is provided with a sealing ring and a gasket, the sealing ring is located between the inner side surface of the second side wall and the gasket, the sealing ring is used to seal the gap between the sliding member and the inner wall of the second through hole, one end of the first elastic member is against the gasket; the bottom of the first side wall has a drainage hole connected to the accommodating groove.

[0017] Optionally, the clamping end has a second guide surface, and the second guide surface is used to abut and cooperate with the edge of the mounting seat to retract the locking rod into the base.

[0018] The quick-release mechanism provided by the present application has the following beneficial effects: in the quick-release mechanism, the locking rod and the button are slidably mounted on the base in different directions. When the button is released, the first elastic member acts on the locking rod so that the locking end of the locking rod extends out of the base. The locking end extending out of the base can be engaged with the slot of the mounting seat, so that the quick-release structure is limited on the mounting seat. When the button is pressed, the first guide surface of the button pushes the locking rod so that the locking end of the locking rod retracts into the base, separating the locking end from the slot of the mounting seat, and the quick-release mechanism can be separated from the mounting seat. The quick-release mechanism has a simple structure and low cost. The quick-release mechanism and the mounting seat with the slot can be quickly assembled and disassembled, and is easy to use.

[0019] An embodiment of the present application provides a battery module, comprising: a shell, a battery pack and the above-mentioned quick-release mechanism, wherein the battery pack is arranged in the shell, the base is arranged on the shell, the snap-on end can extend out of the shell and snap-fit ​​with the slot of the mounting base, and the button is embedded in the shell.

[0020] An embodiment of the present application provides an electrical device, comprising: a mounting base and the above-mentioned battery module, wherein the mounting base has a mounting groove for mounting the battery module, and the inner wall of the mounting groove has a card slot. When the battery module is installed in the mounting groove, the card end can be engaged with the card slot, and the button is arranged toward the port of the mounting groove.

[0021] The beneficial effect of the battery module and electrical equipment provided in the present application is that the quick release mechanism is applied to the battery module and the electrical equipment to achieve rapid assembly and disassembly between the battery module and the mounting base with the card slot, thereby facilitating the replacement of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A three-dimensional assembly diagram of a battery module provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 A three-dimensional exploded view of the battery module;

[0025] Figure 3 A cross-sectional view of a mounting base in an electrical device provided in an embodiment of the present application;

[0026] Figure 4A three-dimensional exploded view of the quick-release mechanism provided in an embodiment of the present application;

[0027] Figure 5 for Figure 4 A further exploded perspective view of the quick release mechanism;

[0028] Figure 6 for Figure 5 Another angle exploded view of the quick release mechanism;

[0029] Figure 7 A cross-sectional view of the quick release mechanism provided in an embodiment of the present application when the clamping end extends out of the base;

[0030] Figure 8 A cross-sectional view of the quick release mechanism provided in an embodiment of the present application when the clamping end is retracted into the base;

[0031] Figure 9 A cross-sectional view of the electrical device provided in an embodiment of the present application when the clamping end is clamped in the clamping slot;

[0032] Figure 10 This is a cross-sectional view of the electrical device provided in an embodiment of the present application when the card connection end is separated from the card slot. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the embodiments of the present application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0037] See also Figures 1 to 3 The embodiment of the present application provides a quick-release mechanism 100 for cooperating with a mounting base 2 having a latching slot 22. The quick-release mechanism 100 can be applied to a predetermined component, which can be a battery module 1 or other structure. The mounting base 2 has a mounting slot 21 for mounting the predetermined component, and the inner wall of the mounting slot 21 has a latching slot 22. When the predetermined component is installed in the mounting slot 21 of the mounting base 2, the quick-release mechanism 100 can cooperate with the latching slot 22 to limit the predetermined component on the mounting base 2. The quick-release mechanism 100 can also separate from the latching slot 22 to separate the predetermined component from the mounting base 2.

[0038] See Figures 4 to 6 The quick release mechanism 100 includes a base 110, a locking rod 120, a button 130 and a first elastic member 141. The locking rod 120 can be slidably mounted on the base 110 along a first direction X. The locking rod 120 has a clamping end 120a that can extend out of the base 110 and engage with the clamping slot 22. The first elastic member 141 extends along the first direction X and is used to provide elastic force to the locking rod 120. The button 130 can be slidably mounted on the base 110 along a second direction Y. The button 130 has a first guide surface 131. Figure 7 、 Figure 8 When the button 130 is pressed, the first guide surface 131 pushes the locking rod 120, causing the engaging end 120a to retract into the base 110, and the first elastic member 141 deforms to store energy. When the button 130 is released, the elastic force of the first elastic member 141 causes the locking rod 120 to move, and the engaging end 120a to extend out of the base 110. The locking rod 120 pushes the first guide surface 131, causing the button 130 to pop up.

[0039] The first direction X and the second direction Y are different linear directions, and there is a predetermined angle between the first direction X and the second direction Y, for example, the angle between the first direction X and the second direction Y is 80° or 90°.

[0040] The quick release mechanism 100 provided in the embodiment of the present application, the locking rod 120 and the button 130 are slidably mounted on the base 110 in different directions. Figure 7 、 Figure 9When the button 130 is released, the first elastic member 141 acts on the locking rod 120 so that the locking end 120a of the locking rod 120 extends out of the base 110. The locking end 120a extending out of the base 110 can be engaged with the slot 22 of the mounting base 2, so that the quick release structure is limited on the mounting base 2. Figure 8 、 Figure 10 When the button 130 is pressed, the first guide surface 131 of the button 130 pushes the locking rod 120, causing the locking end 120a of the locking rod 120 to retract into the base 110, separating the locking end 120a from the locking slot 22 of the mounting base 2, thereby separating the quick release mechanism 100 from the mounting base 2. The quick release mechanism 100 has a simple structure and low cost, and can be quickly assembled and disassembled between the quick release mechanism 100 and the mounting base 2 having the locking slot 22, making it easy to use.

[0041] When setting the first guide surface 131, refer to Figure 4 、 Figure 5 、 Figure 8 When the button 130 is pressed, the first guide surface 131 pushes the locking rod 120 inward relative to the base 110, causing the engaging end 120a to retract into the base 110. The first guide surface 131 can be an inclined surface at a predetermined angle relative to the second direction Y, or a convex or concave arc surface. The first guide surface 131 can be formed on an edge of a plate of the button 130, which provides a compact structure.

[0042] In another embodiment of the present application, please refer to Figure 6 、 Figure 7 The base 110 has a guide groove 111 extending along the second direction Y, and the button 130 has a guide rod 132 extending along the second direction Y. The guide rod 132 is slidably mounted on the guide groove 111. This solution facilitates the movement of the button 130 in the second direction Y and reduces the possibility of the button 130 deviating from the predetermined position during movement.

[0043] In another embodiment of the present application, please refer to Figures 6 to 8 , further comprising a second elastic member 142 disposed within the guide slot 111 and configured to provide an elastic force to the guide rod 132. The second elastic member 142 extends along the second direction Y. When the button 130 is pressed, the guide rod 132 acts on the second elastic member 142, causing it to deform and store energy. When the button 130 is released, the elastic force of the second elastic member 142 causes the button 130 to spring upward. The second elastic member 142 disposed within the guide slot 111 provides an elastic force to the guide rod, enabling the button 130 to more reliably return to its initial position during the resetting and springing process. The second elastic member 142 may be a compression spring.

[0044] In another embodiment of the present application, please refer to Figures 4 to 7The lock rod 120 has a through slot 121 extending along the second direction Y, the guide rod 132 is passed through the through slot 121, and the lock rod 120 has a mating edge 122 for abutting against the first guide surface 131, and the mating edge 122 is located at one end of the through slot 121. The guide rod 132 of the button 130 is passed through the through slot 121 of the lock rod 120, and the end of the guide rod 132 is slidably mounted on the guide slot 111 of the base 110, and the button 130 and the lock rod 120 are linked by sliding fit between the first guide surface 131 of the button 130 and the mating edge 122 of the lock rod 120. The overall structure is compact and easy to assemble. Figure 7 、 Figure 8 When the button 130 is pressed, the first guide surface 131 abuts against the mating edge 122, causing the locking bar 120 to move inward relative to the base 110 (to the left in the figure). When the button 130 is released, the locking bar 120 extends outward relative to the base 110 (to the right in the figure) under the action of the first elastic member 141, and the mating edge 122 pushes the first guide surface 131, causing the button 130 to return to its original position and spring back up.

[0045] In another embodiment of the present application, please refer to Figures 4 to 7 The base 110 has a receiving groove 112 and a first side wall 113 and a second side wall 114 arranged opposite to each other in the first direction X. The first side wall 113 has a first through hole 1131 for the clamping end 120a to extend, and the second side wall 114 has a second through hole 1141; the quick release mechanism 100 also includes a sliding member 150 passing through the second through hole 1141 and fixed to the locking rod 120. The end of the sliding member 150 away from the locking rod 120 is a limiting end 151. The limiting end 151 is located outside the base 110. The limiting end 151 is used to abut against the outer surface of the second side wall 114 to limit the movement range of the sliding member 150. By respectively providing a first through-hole 1131 and a second through-hole 1141 on two opposite side walls of the base 110, the locking rod 120 is fixed to the sliding member 150. The locking rod 120 is slidably mounted in the first through-hole 1131, and the sliding member 150 is slidably mounted in the second through-hole 1141, so that the locking rod 120 and the sliding member 150 can stably move back and forth along the first direction X. The limiting end 151 of the sliding member 150 can abut and cooperate with the outer surface of the second side wall 114 of the base 110, thereby limiting the range of movement of the locking rod 120 and thus limiting the maximum extension length of the clamping end 120a of the locking rod 120. Exemplarily, the sliding member 150 having the limiting end 151 can be a bolt, the head of the bolt being the clamping end 120a, and one end of the bolt can be screwed onto the locking rod 120.

[0046] In another embodiment of the present application, please refer to Figures 4 to 7First elastic member 141 is a compression spring, which is sleeved outside of sliding member 150. The two ends of the compression spring are respectively abutted against the inner side surface of locking rod 120 and second side wall 114. Sliding member 150 serves to position and guide the compression spring, maintaining it in a predetermined position during deformation, making the overall structure easy to assemble.

[0047] In another embodiment of the present application, please refer to Figures 4 to 7 The sliding member 150 is covered with a sealing ring 161 and a gasket 162. The sealing ring 161 is located between the inner side of the second side wall 114 and the gasket 162. The sealing ring 161 is used to seal the gap between the sliding member 150 and the inner wall of the second through hole 1141. One end of the first elastic member 141 is against the gasket 162. The bottom of the first side wall 113 has a drainage hole 1132 connected to the receiving groove 112. This solution is suitable for scenes that require waterproofing. Figure 1 、 Figure 2 For example, the quick-release mechanism 100 is applied to the housing 200 of the battery module 1, with the first sidewall 113 of the base 110 positioned close to the exterior of the housing 200 and the second sidewall 114 positioned close to the interior of the housing 200. When it rains outdoors, rainwater may enter the receiving groove 112 of the base 110 through the gap between the first mounting hole 201 of the housing 200 and the button 130, or the gap between the first through-hole 1131 and the locking rod 120, and then enter the housing 200 of the battery module 1 through the gap between the second through-hole 1141 and the sliding member 150. This poses a risk of water intrusion and damage to the battery pack 300 within the housing 200. By disposing a sealing ring 161 and a gasket 162 on the inner side of the second sidewall 114 near the second via 1141, the slider 150 passes through the sealing ring 161 and gasket 162. The first elastic member 141 clamps the sealing ring 161 between the second sidewall 114 and the gasket 162, achieving a seal between the second via 1141 and the slider 150. This effectively reduces the risk of rainwater entering the battery module 1 through the second via 1141. Rainwater that enters the base 110 is drained to the outside through the drainage hole 1132 at the bottom of the first sidewall 113, eliminating the need to disassemble the battery module 1 for drainage, ensuring reliable operation of the quick-release mechanism 100. Providing multiple drainage holes 1132 can improve drainage efficiency.

[0048] In another embodiment of the present application, please refer to Figure 1 、 Figure 3 、 Figure 4The clamping end 120a has a second guide surface 123, which is used to abut and cooperate with the edge of the mounting base 2 to retract the locking rod 120 into the base 110. By providing the second guide surface 123 at the clamping end 120a, when the predetermined module equipped with the quick release mechanism is assembled into the mounting groove 21 of the mounting base 2, the edge of the mounting groove 21 pushes the second guide surface 123 to retract the locking rod 120 relative to the base 110, thereby facilitating the assembly of the predetermined module. The second guide surface 123 can be an inclined surface at a predetermined angle relative to the first direction X, or a convex or concave curved surface.

[0049] See Figure 1 、 Figure 2 The embodiment of the present application provides a battery module 1, comprising a housing 200, a battery pack 300 and the above-mentioned quick release mechanism 100, wherein the battery pack 300 is disposed in the housing 200, and the base 110 is disposed on the housing 200. Figure 9 The snap-on end 120a can extend outside the housing 200 and snap-fit ​​with the snap-on slot 22 of the mounting base 2. The button 130 is embedded in the housing 200. The quick-release mechanism 100 is applied to the battery module 1 to enable rapid assembly and disassembly between the battery module 1 and the mounting base 2 having the snap-on slot 22, facilitating replacement of the battery module 1. The disassembled battery module 1 can be charged separately.

[0050] For example, see Figure 1 、 Figure 2 The top surface of the housing 200 has a first mounting hole 201, and the side surface of the housing 200 has a second mounting hole 202. The base 110 of the quick-release mechanism 100 is mounted on the housing 200 of the battery module 1. The button 130 is positioned corresponding to the first mounting hole 201. The first sidewall 113 of the base 110, which includes the locking rod 120, is positioned corresponding to the second mounting hole 202. This facilitates the user pressing the button 130 and extending the locking rod 120 out of the housing 200. The base 110 can be secured to the housing 200 using fasteners or other means.

[0051] When button 130 is assembled into housing 200, the shape of button 130 matches that of first mounting hole 201. Button 130 has a stopper 133, and the inner wall of second mounting hole 202 is provided with a stopper slot 203. Stopper 133 slides into stopper slot 203 to limit the range of movement of button 130 and prevent it from detaching from housing 200. If button 130 is provided with multiple stoppers 133, the inner wall of second mounting hole 202 is provided with corresponding stopper slots 203, ensuring a one-to-one correspondence between stoppers 133 and stopper slots 203, allowing button 130 to move back and forth stably relative to housing 200.

[0052] When the housing 200 is provided, the housing 200 may include an upper housing 210 and a lower housing 220 connected to each other. The upper housing 210 and the lower housing 220 enclose an inner cavity, and the battery pack 300 and the quick release mechanism 100 may be disposed in the inner cavity. The upper housing 210 and the lower housing 220 may be connected using fasteners or other means.

[0053] See Figures 1 to 3 The embodiment of the present application provides an electrical device, including a mounting base 2 and the above-mentioned battery module 1, the mounting base 2 has a mounting groove 21 for mounting the battery module 1, and the inner wall of the mounting groove 21 has a card groove 22, combined with Figure 9 When the battery module 1 is installed in the mounting slot 21, the engaging end 120a engages with the engaging slot 22, and the button 130 is positioned toward the end of the mounting slot 21. The quick-release mechanism 100 is applied to an electrical device to enable rapid assembly and disassembly between the battery module 1 and the mounting base 2 having the engaging slot 22, facilitating replacement of the battery module 1. The electrical device may be an electric wheelchair, a robot, or other electrical structure.

[0054] The bottom of the battery module 1 has a first conductive terminal 400 electrically connected to the battery pack 300. A second conductive terminal 23 is located within the mounting slot 21 of the mounting base 2. This second conductive terminal 23 is connected to an electrical device, such as a motor or other device. When the battery module 1 is installed in the mounting slot 21, the first conductive terminal 400 and the second conductive terminal 23 engage, electrically connecting them and enabling the battery pack 300 to power the device.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A quick release mechanism, characterized in that: Applied to the housing of the battery module, the quick release mechanism is used to cooperate with the mounting seat with a card slot, and the quick release mechanism includes: a base, a locking rod, a button and a first elastic member; The locking rod can be slidably mounted on the base along a first direction, and the locking rod has a clamping end that can extend out of the base and engage with the clamping slot; The first elastic member is extended along the first direction and is used to provide elastic force to the locking rod; The button can be slidably mounted on the base along a second direction, and the button has a first guide surface; When the button is pressed, the first guide surface pushes the locking rod to retract the clamping end into the base, and the first elastic member deforms and stores energy; When the button is released, under the elastic force of the first elastic member, the locking rod moves and the clamping end extends out of the base, and the locking rod pushes the first guide surface to make the button pop up; The base is provided on the housing, and has a receiving groove and a first side wall and a second side wall arranged opposite to each other in the first direction; the clamping end extends from the first side wall, and the quick release mechanism further includes a sliding member passing through the second side wall and fixed to the locking rod; The bottom of the first side wall has a drainage hole connected to the accommodating groove; the first side wall is arranged outside the shell close to the battery module, and the second side wall is arranged close to the inside of the shell.

2. The quick release mechanism according to claim 1, wherein: The base has a guide groove extending along the second direction, the button has a guide rod extending along the second direction, and the guide rod is slidably installed in the guide groove.

3. The quick release mechanism according to claim 2, wherein: It also includes a second elastic member arranged in the guide groove and used to provide elastic force to the guide rod, and the second elastic member extends along the second direction; when the button is pressed, the guide rod acts on the second elastic member to deform the second elastic member and store energy; when the button is released, the button is bounced up under the elastic force of the second elastic member.

4. The quick release mechanism according to claim 2, wherein: The locking rod has a through slot extending along the second direction, the guide rod is passed through the through slot, and the locking rod has a mating edge for abutting and mating with the first guide surface, the mating edge being located at one end of the through slot.

5. The quick release mechanism according to any one of claims 1 to 4, characterized in that: The first side wall has a first through hole for the clamping end to extend out, and the second side wall has a second through hole; the sliding member is passed through the second through hole, and the end of the sliding member away from the locking rod is a limiting end, and the limiting end is located outside the base, and the limiting end is used to abut against the outer surface of the second side wall to limit the moving range of the sliding member.

6. The quick release mechanism according to claim 5, wherein: The first elastic member is a compression spring, which is sleeved outside the sliding member. Two ends of the compression spring are respectively abutted against the locking rod and the inner side surface of the second side wall.

7. The quick release mechanism according to claim 5, wherein: The sliding member outer shell is provided with a sealing ring and a gasket, the sealing ring is located between the inner side of the second side wall and the gasket, the sealing ring is used to seal the gap between the sliding member and the inner wall of the second through hole, and one end of the first elastic member is against the gasket.

8. The quick release mechanism according to any one of claims 1 to 4, characterized in that: The clamping end has a second guide surface, and the second guide surface is used to abut and cooperate with the edge of the mounting seat to retract the locking rod into the base.

9. A battery module, characterized in that: include: A shell, a battery pack, and a quick-release mechanism as described in any one of claims 1 to 8, wherein the battery pack is arranged in the shell, the base is arranged on the shell, the snap-on end can extend out of the shell and snap-fit ​​with the slot of the mounting base, and the button is embedded in the shell.

10. An electrical device, characterized in that: include: The mounting base and the battery module as claimed in claim 9, wherein the mounting base has a mounting groove for mounting the battery module, the inner wall of the mounting groove has a card slot, when the battery module is installed in the mounting groove, the card end can be engaged with the card slot, and the button is arranged toward the port of the mounting groove.

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