Detachable battery and electronic equipment

Abstract

The utility model provides a detachable battery and electronic equipment, and relates to the technical field of batteries. The detachable battery provided by the utility model comprises a battery shell, wherein the battery shell is provided with an accommodating cavity; the battery cell unit comprises a battery cell and a control circuit board which are electrically connected, the battery cell and the control circuit board are both arranged in the containing cavity, and the control circuit board controls the battery cell to be charged or discharged; the locking assembly comprises a lock catch and a lock pin, the lock pin comprises a lock pin body and an elastic piece, the elastic piece is elastically connected between the lock pin body and the lock catch, the elastic piece is provided with a concave part, the lock catch is provided with a protruding part, the lock catch can rotate relative to the lock pin in the axis direction of the lock pin, the protruding part and the concave part are clamped or separated, and therefore the lock catch and the lock pin are locked or unlocked. The detachable battery provided by the utility model is relatively high in assembly stability and safety when being used in the electronic equipment.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a detachable battery and an electronic device. Background Art

[0002] In the electronics industry, the fixing method of laptop batteries usually uses screws for assembly and locking. This assembly method has the advantages of reliable connection, convenient maintenance and economy.

[0003] There are many problems with the method of using screws for assembling and locking the battery. The main problem is that the screws are small and sharp, posing a large safety hazard. For example, during product assembly and later maintenance, it is easy for screws to be left inside the product and puncture the battery, resulting in safety accidents such as battery fires and liquid leakage. Therefore, there is an urgent need in the market for a new assembly and locking solution for laptop batteries to provide stable assembly connection for the battery while reducing safety hazards. Utility Model Content

[0004] This application provides a detachable battery and an electronic device, and the detachable battery has high assembly stability and safety in the electronic device.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] In a first aspect of this application, a detachable battery is provided, which includes: a battery housing having a receiving cavity;

[0007] a battery cell unit including a battery cell and a control circuit board that are electrically connected. The battery cell and the control circuit board are both disposed in the receiving cavity, and the control circuit board controls the charging or discharging of the battery cell;

[0008] a locking assembly including a lock and a locking pin. The locking pin includes a locking pin body and an elastic member. The elastic member is elastically connected between the locking pin body and the lock. The elastic member has a recessed portion, and the lock has a protruding portion. The lock can rotate relative to the locking pin in the direction of the locking pin axis, so that the protruding portion and the recessed portion are engaged or disengaged, so that the lock and the locking pin are locked or unlocked.

[0009] In a possible implementation, the lock includes a seat plate and a connecting block. The connecting block stands on the seat plate, and the side of the connecting block facing away from the seat plate has the protruding portion;

[0010] The connecting block has a locking groove with an opening. The locking pin body has a protruding portion extending along its own radial direction. When the lock rotates relative to the locking pin, the protruding portion can enter the locking groove along the opening and be engaged with the locking groove.

[0011] In a possible implementation, there are at least two connecting blocks, and the two connecting blocks are spaced apart on the seat plate to form a first gap for the locking pin body to extend into;

[0012] The elastic member has two recessed portions that are spaced apart from each other, and along the axial direction of the locking pin body, a projection of the protruding portion on the elastic member does not overlap with the recessed portion.

[0013] In a possible implementation, the locking pin body includes a support seat and a pin rod, the pin rod is connected to the support seat, and the pin rod has the protrusion extending along its radial direction;

[0014] The elastic member is an elastic gasket having an opening. The elastic gasket is sleeved on the outer periphery of the pin rod through the opening. The elastic gasket is elastically connected between the support seat and the connecting block.

[0015] In a possible implementation, the elastic gasket includes an elastic layer and a wear-resistant layer which are stacked, the wear-resistant layer is located on a side of the elastic layer facing the lock buckle, the wear-resistant layer is provided with the recessed portion, and the wear-resistant layer is elastically connected to the connecting block;

[0016] Alternatively, the wear-resistant layer is located on a side of the elastic layer away from the lock buckle, the wear-resistant layer is elastically connected to the support seat, and the elastic layer is provided with the recessed portion;

[0017] Alternatively, along the thickness direction of the elastic layer, the two wear-resistant layers are respectively arranged on both sides of the elastic layer, one of the wear-resistant layers has the recessed portion and is elastically connected to the connecting block, and the other wear-resistant layer is elastically connected to the supporting seat.

[0018] In a possible implementation, the wear-resistant layer has a thickness of 0.06-0.1 mm.

[0019] In a possible implementation manner, the recessed portion is adapted to an outer contour shape of the raised portion.

[0020] In a possible implementation manner, the surface of the raised portion is an arc-shaped surface.

[0021] In a possible implementation manner, the protrusion is hemispherical in shape.

[0022] The removable battery provided in this application has at least the following beneficial effects:

[0023] The detachable battery structure provided by the present application has a simple locking method and high locking efficiency. At the same time, the solution of the present application does not require threaded connectors including screws, reducing the probability of damage to electronic devices and batteries by sharp objects such as screws, and having high safety. Specifically, the present application realizes the detachable connection between the battery housing and the housing of the electronic device through the cooperation of a lock and a lock pin. Moreover, by using an elastic member with a recessed portion disposed between the lock pin body and the lock, the connection stability between the lock and the lock pin is further strengthened by the elastic force. At the same time, when the lock with a protruding portion rotates relative to the lock pin, the protruding portion cooperates with the recessed portion of the elastic member to be engaged or disengaged, enabling the operator to more easily identify the locked and unlocked states of the lock and the lock pin, and improving the installation and disassembly efficiency of the battery housing on the electronic device.

[0024] The second aspect of the present application provides an electronic device, including the detachable battery provided by any one of the technical solutions in the first aspect.

[0025] The electronic device provided by the second aspect of the present invention includes all the beneficial effects of any one of the solutions in the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic diagram of the overall structure of the detachable battery provided by the embodiment of the present application;

[0028] Figure 2 It is a schematic diagram showing the structure of the battery cell unit of the detachable battery provided by the embodiment of the present application;

[0029] Figure 3 It is an exploded structure schematic diagram of the detachable battery provided by the embodiment of the present application;

[0030] Figure 4 It is a schematic diagram showing the structure of the insertion part of the control circuit board of the detachable battery provided by the embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of the structure of the detachable battery provided by the embodiment of the present application when the lock and the lock pin are separated;

[0032] Figure 6 It is a schematic diagram of the structure of the detachable battery provided by the embodiment of the present application when the lock and the lock pin are assembled but not locked;

[0033] Figure 7 is Figure 6 a schematic cross-sectional structure diagram of

[0034] Figure 8 a schematic structure diagram of the buckle of the detachable battery provided by the embodiment of the present application in three states of unlocking, locking and fastening relative to the locking pin;

[0035] Figure 9 an axonometric structure diagram of the buckle of the detachable battery provided by the embodiment of the present application;

[0036] Figure 10 is Figure 9 a schematic bottom view structure diagram of

[0037] Figure 11 a front view of the buckle of the detachable battery provided by the embodiment of the present application;

[0038] Figure 12 an axonometric structure diagram of the locking pin of the detachable battery provided by the embodiment of the present application;

[0039] Figure 13 is Figure 12 a schematic top view structure diagram of

[0040] Figure 14 is Figure 13 a schematic cross-sectional structure diagram of the elastic member in

[0041] Explanation of reference numerals:

[0042] 100 - Battery housing;

[0043] 110 - Accommodating cavity;

[0044] 120 - Lower shell;

[0045] 130 - Upper cover;

[0046] 140 - Label;

[0047] 200 - Cell unit;

[0048] 210 - Cell; 211 - Tab;

[0049] 220 - Control circuit board;

[0050] 221 - Metal sheet; 222 - Insertion part:

[0051] 300 - Locking assembly;

[0052] 310 - Buckle;

[0053] 311 - Protrusion;

[0054] 312 - Seat plate;

[0055] 313 - connecting block;

[0056] 3131 - locking groove; 3132 - opening; 3133 - first gap;

[0057] 320 - locking pin;

[0058] 321 - locking pin body;

[0059] 3211 - protruding part; 3212 - supporting seat; 3213 - pin rod;

[0060] 322 - elastic member;

[0061] 3221 - recessed part; 3222 - elastic layer; 3223 - wear-resistant layer.

[0062] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and more detailed descriptions will be given later. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0063] As described in the background art, in the electronics industry, the fixing method of laptop batteries usually uses screws for assembly and locking. This assembly method has the advantages of reliable connection, convenient maintenance, and economy.

[0064] There are many problems with the method of using screws for assembling and locking the battery. The main problem is that the screws are small and sharp, posing a relatively large safety hazard. For example, during product assembly and subsequent maintenance, it is easy for screws to be left inside the product and pierce the battery, resulting in safety accidents such as battery fires and liquid leakage. Therefore, there is an urgent need in the market for a new assembly and locking solution for laptop batteries to provide stable assembly connection for the battery while reducing safety hazards.

[0065] In view of the above technical problems, the embodiments of the present application provide a detachable battery and an electronic device. The locking method of the detachable battery structure is simple and has a relatively high locking efficiency. At the same time, the solution of the present application does not require threaded connectors including screws, reducing the probability of damage to the electronic device and the battery by sharp objects such as screws, and having relatively high safety. Specifically, the present application realizes the detachable connection between the battery housing and the housing of the electronic device through the cooperation of a lock and a locking pin. Moreover, by using an elastic member with a recessed part disposed between the locking pin body and the lock, the connection stability between the lock and the locking pin is further strengthened through elastic force. At the same time, when the lock with a protruding part rotates relative to the locking pin, the protruding part cooperates with the recessed part of the elastic member to be clamped or disengaged, enabling the operator to more easily identify the locked and unlocked states of the lock and the locking pin, and improving the installation and disassembly efficiency of the battery housing on the electronic device.

[0066] To make the above objects, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0067] Referring Figures 1 to 14 , the detachable battery provided by the embodiments of the present application includes a battery housing 100 having a receiving cavity 110; a battery cell unit 200 including a battery cell 210 and a control circuit board 220 that are electrically connected. The battery cell 210 and the control circuit board 220 are both disposed in the receiving cavity 110. The control circuit board 220 is used to control the charging or discharging of the battery cell 210. Among them, the battery cell 210 can be one or more, connected in series or in parallel to the control circuit of the control circuit board 220; a locking assembly 300 including a lock 310 and a locking pin 320, both of which can be injection molded from engineering plastics. The battery housing 100 is detachably connected to the housing of the electronic device through the cooperation of the lock 310 and the locking pin 320; the locking pin 320 includes a locking pin body 321 and an elastic member 322. The elastic member 322 is elastically connected between the locking pin body 321 and the lock 310. The elastic member 322 has a recessed portion 3221, and the lock 310 has a protruding portion 311. The lock 310 can rotate relative to the locking pin 320 around the axis of the locking pin 320 to engage or disengage the protruding portion 311 and the recessed portion 3221, so that the lock 310 and the locking pin 320 are locked or unlocked.

[0068] With such a setting, the locking method of the detachable battery structure is simple and the locking efficiency is relatively high. At the same time, the solution of the present application does not require threaded connectors including screws, reducing the probability of damage to the electronic device and the battery by sharp objects such as screws, and has relatively high safety. Specifically, the present application realizes the detachable connection between the battery housing 100 and the housing of the electronic device through the cooperation of the lock 310 and the locking pin 320. Moreover, by using the elastic member 322 having a recessed portion 3221 disposed between the locking pin body 321 and the lock 310, the connection stability between the lock 310 and the locking pin 320 is further strengthened by the elastic force. That is to say, the setting of the elastic member 322 enables an interference fit at the contact interface between the lock 310 and the locking pin 320. When the lock 310 is pressed and screwed into the locking pin 320, the elastic member 322 is compressed under pressure, and a frictional resistance is generated at the contact interface between the lock 310 and the locking pin 320. At the same time, when the lock 310 having the protruding portion 311 rotates relative to the locking pin 320, the protruding portion 311 cooperates with the recessed portion 3221 of the elastic member 322 to engage or disengage, making it easier for the operator to identify the locked and unlocked states of the lock 310 and the locking pin 320, and improving the installation and disassembly efficiency of the battery housing 100 on the electronic device.

[0069] Exemplarily, the battery housing 100 of this embodiment and the battery compartment of the electronic device are installed together through a locking component 300. The battery housing 100 is provided with a first mounting portion, and the locking buckle 310 is disposed in the first mounting portion. The first mounting portion has a first connection port, and one end of the locking buckle 310 passes through the first connection port and is exposed outside the battery housing 100.

[0070] Furthermore, the battery cell 210 has a tab 211, and a metal sheet 221 is disposed on the control circuit board 220. The tab 211 is electrically connected to the control circuit board 220 through the metal sheet 221. Exemplarily, the material of the metal sheet 221 is nickel, copper or aluminum. The metal sheet 221 and the tab 211 are stacked, and the two are connected through laser welding, resistance welding or soldering process, so that the battery cell unit 200, as the core unit of the battery, can realize the energy storage and discharge functions of the battery.

[0071] Furthermore, the battery housing 100 includes an upper cover 130 and a lower case 120 connected to each other, both of which are insulating plastic parts. A label 140 is attached to the surface of the upper cover 130. Exemplarily, the label 140 is an insulating PET film label 140, and the label 140 can identify information such as the relevant capacity, power, manufacturer and safety regulations of the battery, which is convenient for users to use; the lower case 120 has a receiving cavity 110, and the first mounting portion is provided in the receiving cavity 110. The locking buckle 310 is disposed in the first mounting portion. The first mounting portion has a first connection port, and one end of the locking buckle 310 passes through the first connection port and is exposed outside the battery housing 100. One end of the locking pin 320 can pass through the receiving cavity 110 through the first connection port and be connected to the battery compartment of the electronic device. For example, the electronic device has a battery compartment, and the locking pin 320 is connected to the battery compartment and extends relative to the battery compartment; during assembly, after the battery unit is placed in the receiving cavity 110 of the lower case 120, the upper cover 130 is then buckled thereto. By pressing down the locking buckle 310 to engage with the locking pin 320 and rotating the locking buckle 310 to the locked state, a stable battery housing can be formed, and then the label 140 is attached to the surface of the upper cover 130 to form a complete battery pack.

[0072] Even further, a plug-in portion 222 is provided on the control circuit board 220. The plug-in portion 222 is a plastic part. When the battery is assembled with the electronic device, the control circuit board 220 is plugged into a preset groove on the electronic device through the plug-in portion 222. In this way, it cooperates with the locking component 300 to strengthen the connection between the battery and the electronic device. For example, the groove is provided in the battery compartment of the electronic device, and the control circuit board 220 is plugged into the preset groove on the battery compartment through the plug-in portion 222.

[0073] In more examples, the plug-in portion 222 is a gold finger connector and is located at a position close to the edge of the control circuit board 220, which can effectively prevent the battery from losing power and instantaneously breaking due to external forces such as dropping and vibration.

[0074] In some embodiments, the latch 310 includes a base plate 312 and a connecting block 313. The connecting block 313 is erected on the base plate 312, and a protruding portion 311 is provided on a side of the connecting block 313 facing away from the base plate 312. The connecting block 313 has a locking groove 3131 with an opening 3132. The locking pin body 321 has a protruding portion 3211 extending radially along itself. When the latch 310 rotates relative to the locking pin 320, the protruding portion 3211 can enter the locking groove 3131 along the opening 3132 and engage with the locking groove 3131.

[0075] Based on the above embodiments, an improvement can be made. A knob boss is provided on a side of the base plate 312 facing away from the connecting block 313. In this way, during the assembly and disassembly of the battery, there is no need for disassembly tools such as a screwdriver to rotate the latch 310. Manual rotation of the knob boss can complete the assembly and disassembly of the battery, which is relatively convenient.

[0076] In a possible implementation, the upper cover 130 is provided with an avoidance hole for avoiding the knob boss. The surface of the upper cover 130 is provided with letter markings Lock and Unlock, and the letter markings are close to the avoidance hole and are arranged at intervals of 90 degrees along its circumferential direction to indicate the locked state after the latch 310 is rotated relative to the locking pin 320 for the user.

[0077] In some embodiments, there are at least two connecting blocks 313. The two connecting blocks 313 are spaced apart on the base plate 312 to form a first gap 3133 for the locking pin body 321 to extend into. The elastic member 322 has two spaced-apart recessed portions 3221, and along the axial direction of the locking pin body 321, the projection of the protruding portion 3211 on the elastic member 322 does not coincide with the recessed portion 3221.

[0078] In some embodiments, the locking pin body 321 includes a support base 3212 and a pin rod 3213. The pin rod 3213 is connected to the support base 3212, and the pin rod 3213 has a protruding portion 3211 extending radially along itself. The elastic member 322 is an elastic gasket. The elastic gasket has an opening, and the elastic gasket is sleeved on the outer periphery of the pin rod 3213 through the opening. The elastic gasket is elastically connected between the support base 3212 and the connecting block 313.

[0079] In some embodiments, the elastic gasket includes an elastic layer 3222 and a wear-resistant layer 3223 which are stacked, the wear-resistant layer 3223 being located on the side of the elastic layer 3222 facing the lock buckle 310, the wear-resistant layer 3223 being provided with a recessed portion 3221, and the wear-resistant layer 3223 being elastically connected to the connecting block 313; or, the wear-resistant layer 3223 is located on the side of the elastic layer 3222 away from the lock buckle 310, the wear-resistant layer 3223 being elastically connected to the support seat 3212, and the elastic layer 3222 being provided with a recessed portion 3221; or, along the thickness direction of the elastic layer 3222, two wear-resistant layers 3223 are respectively arranged on both sides of the elastic layer 3222, one of the wear-resistant layers 3223 having a recessed portion 3221 and being elastically connected to the connecting block 313, and the other wear-resistant layer 3223 being elastically connected to the support seat 3212.

[0080] In this case, the elastic member 322 formed by combining the elastic layer 3222 and the wear-resistant layer 3223 can not only withstand repeated friction of the lock buckle 310 , but also play an elastic supporting and locking role for the lock buckle 310 .

[0081] In some embodiments, the wear-resistant layer 3223 has a thickness of 0.06-0.1 mm, for example, the wear-resistant layer 3223 has a thickness of 0.06 mm, 0.8 mm, or 0.1 mm.

[0082] Exemplarily, the material of the wear-resistant layer 3223 is Teflon cloth, and the material of the elastic layer 3222 is silicone foam, which has long-lasting resilience and small permanent deformation.

[0083] In some embodiments, the recessed portion 3221 is adapted to the outer contour shape of the raised portion 311, so that not only can the lock buckle 310 rotate relative to the locking pin 320, but its own raised portion 311 and the recessed portion 3221 of the elastic member 322 can produce a sense of rotation, allowing the operator to identify the locked and unlocked states of the locking assembly 300, and the design of the raised portion 311 and the recessed portion 3221 with adapted contour shapes can make the rotation of the lock buckle 310 relative to the locking pin 320 smoother, and the contact wear of the raised portion 311 and the recessed portion 3221 is smaller.

[0084] In some embodiments, the surface of the protrusion 311 is an arc-shaped surface, which further enhances the user experience and positive feedback of the operator when rotating the lock buckle 310 , thereby ensuring the locking state of the battery.

[0085] In some embodiments, the shape of the protrusion 311 is hemispherical, and the recess 3221 of the elastic member 322 is also a hemispherical recess corresponding to the protrusion 311. In this way, the contact area between the hemispherical protrusion and the recess is larger, and the feedback given to the operator is stronger.

[0086] In a second aspect, an embodiment of the present application provides an electronic device, which includes a detachable battery provided by any embodiment of the first aspect.

[0087] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0088] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0089] In the present application, unless otherwise clearly specified and defined, terms such as "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0090] In the present application, unless otherwise clearly specified and defined, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first and second features may be indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0091] The various embodiments or implementation manners in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0092] It should be noted that the embodiments referred to in the specification as "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Further, when combining a specific feature, structure or characteristic with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure or characteristic in combination with other embodiments, whether explicitly or implicitly described.

[0093] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A detachable battery, characterized in that, Comprising: A battery housing (100) having a receiving cavity (110); A battery cell unit (200) including a battery cell (210) and a control circuit board that are electrically connected. The battery cell (210) and the control circuit board are both disposed within the receiving cavity (110), and the control circuit board controls charging or discharging of the battery cell (210); A locking assembly (300) including a lock catch (310) and a lock pin (320). The lock pin (320) includes a lock pin body (321) and an elastic member (322). The elastic member (322) is elastically connected between the lock pin body (321) and the lock catch (310). The elastic member (322) has a recessed portion (3221), and the lock catch (310) has a protruding portion (311). The lock catch (310) can rotate relative to the lock pin (320) about the axis direction of the lock pin (320) to engage or disengage the protruding portion (311) and the recessed portion (3221), so as to lock or unlock the lock catch (310) and the lock pin (320).

2. The detachable battery according to claim 1, wherein The lock catch (310) includes a seat plate (312) and a connecting block (313). The connecting block (313) stands on the seat plate (312), and the side of the connecting block (313) facing away from the seat plate (312) has the protruding portion (311); The connecting block (313) has a locking groove (3131). The locking groove (3131) has an opening (3132). The lock pin body (321) has a protruding portion (3211) extending along its own radial direction. When the lock catch (310) rotates relative to the lock pin (320), the protruding portion (3211) can enter the locking groove (3131) along the opening (3132) and engage with the locking groove (3131).

3. The detachable battery according to claim 2, wherein There are at least two connecting blocks (313). The two connecting blocks (313) are spaced apart on the seat plate (312) to form a first gap (3133) for the lock pin body (321) to extend into; The elastic member (322) has two spaced-apart recessed portions (3221), and along the axial direction of the lock pin body (321), the projection of the protruding portion (3211) on the elastic member (322) does not coincide with the recessed portion (3221).

4. The detachable battery according to claim 2, wherein The lock pin body (321) includes a support seat (3212) and a pin rod (3213). The pin rod (3213) is connected to the support seat (3212), and the pin rod (3213) has the protruding portion (3211) extending along its own radial direction; The elastic member (322) is an elastic gasket. The elastic gasket has an opening, and the elastic gasket is sleeved on the outer periphery of the pin rod (3213) through the opening. The elastic gasket is elastically connected between the support seat (3212) and the connecting block (313).

5. The detachable battery according to claim 4, wherein, The elastic gasket includes an elastic layer (3222) and a wear-resistant layer (3223) arranged in a stacked manner. The wear-resistant layer (3223) is located on one side of the elastic layer (3222) facing the buckle (310). The wear-resistant layer (3223) is provided with the recessed portion (3221), and the wear-resistant layer (3223) is elastically connected to the connecting block (313). Alternatively, the wear-resistant layer (3223) is located on one side of the elastic layer (3222) facing away from the buckle (310). The wear-resistant layer (3223) is elastically connected to the support seat (3212), and the elastic layer (3222) is provided with the recessed portion (3221). Alternatively, along the thickness direction of the elastic layer (3222), the two wear-resistant layers (3223) are respectively arranged on both sides of the elastic layer (3222). One of the wear-resistant layers (3223) has the recessed portion (3221) and is elastically connected to the connecting block (313), and the other wear-resistant layer (3223) is elastically connected to the support seat (3212).

6. The detachable battery according to claim 5, wherein, The thickness of the wear-resistant layer (3223) is 0.06 - 0.1 mm.

7. The detachable battery according to any one of claims 1-6, characterized in that, The outer contour shape of the recessed portion (3221) is adapted to that of the protruding portion (311).

8. The detachable battery according to claim 7, wherein, The surface of the protruding portion (311) is an arc surface.

9. The detachable battery according to claim 8, characterized in that, The shape of the protruding portion (311) is hemispherical.

10. An electronic device, characterized in that, Comprising the detachable battery according to any one of claims 1 - 9.

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