Double lock structure of battery

Abstract

This utility model relates to the field of electric vehicle technology and discloses a two-lock structure for a battery, including a battery lock disposed within a vehicle frame and a battery unit with a battery end cap. The two-lock structure is used to lock the battery unit within the vehicle frame or unlock the battery unit from the vehicle frame. The battery lock includes a first holding part and a second holding part. The battery end cap is provided with a first held part and a second held part. The second held part is located upstream of the first held part in the direction of removing the battery unit from the vehicle frame. The first holding part and the first held part cooperate to form a first lock for locking or unlocking the battery unit. The second holding part and the second held part cooperate to form a second lock for locking or unlocking the battery unit, providing greater security through the two-lock unlocking mechanism. The second held part is located upstream of the first held part in the direction of removing the battery unit from the vehicle frame to prevent the second held part from jamming and preventing the battery unit from being removed.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to a two-lock structure for a battery. Background Technology

[0002] Electric-assist bicycles typically use lithium batteries as their power source. High-capacity batteries are quite heavy, so many manufacturers design them to be located between the two wheels to achieve a balanced center of gravity. Whether the battery is internally mounted is also a point of interest; an internal battery allows for a smoother frame design, catering to riders' aesthetic preferences. Tubular battery mounting maintains a balanced weight distribution while avoiding any impact on the frame's aerodynamics.

[0003] To maintain the overall aesthetics of the frame, the battery is typically embedded in the tube from below and fixed to the tube by mechanical locking. In existing technology, the battery cell and the frame are locked and unlocked by a battery lock, but the existing battery lock is a single lock, which can easily lead to safety issues. Utility Model Content

[0004] The purpose of this invention is to propose a two-lock structure for batteries, which solves the technical problem that existing batteries with only one lock are prone to safety issues.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a battery dual-lock structure, including a battery lock disposed in the vehicle frame and a battery unit provided with a battery end cap. The battery dual-lock structure is used to lock the battery unit in the vehicle frame or to unlock the battery unit from the vehicle frame.

[0007] The battery lock includes a first retaining part and a second retaining part;

[0008] The battery end cap is provided with a first holding part and a second holding part. The second holding part is located upstream of the first holding part in the direction of removing the battery unit from the vehicle frame. The first holding part and the first holding part cooperate to form a first lock for locking or unlocking the battery unit. The second holding part and the second holding part cooperate to form a second lock for locking or unlocking the battery unit.

[0009] The battery features a dual-lock structure. The battery lock has a first retaining part and a second retaining part, while the battery end cap has a first held part and a second held part. The first retaining part and the first held part cooperate to form a first lock for locking or unlocking the battery unit. The second retaining part and the second held part cooperate to form a second lock for locking or unlocking the battery unit. Unlocking the battery unit is achieved through these two locks, making it safer. The second held part of the dual-lock device is located upstream of the first held part in the direction of removing the battery unit from the vehicle frame, preventing the second held part from getting stuck due to insufficient travel and being unable to remove the battery unit.

[0010] As a preferred embodiment of the dual-lock structure of the aforementioned battery, the dual-lock structure of the battery further includes:

[0011] An elastic pressing component is disposed on the battery end cap, and the second retained portion is disposed on the elastic pressing component. The elastic pressing component is used to drive the second retained portion to elastically deform when pressed, so that the second retained portion disengages from the second retaining portion.

[0012] The elastic pressing component can drive the second held part to elastically deform when pressed, so that the second held part is disengaged from the second held part. The second lock can be unlocked by pressing the elastic pressing component, which is relatively simple to operate.

[0013] As a preferred embodiment of the double-lock structure of the above-mentioned battery, the battery end cap is provided with a clearance groove at the corresponding position of the elastic pressing component, and the elastic pressing component is disposed in the clearance groove;

[0014] The second retained part is an elastic protrusion provided on the elastic pressing component. The first end of the elastic pressing component is connected to the battery end cap, and the second end of the elastic pressing component is spaced apart from the bottom of the relief groove. When the second end of the elastic pressing component is pressed, the second retained part undergoes elastic deformation.

[0015] The clearance groove allows the elastic pressing component to have a certain deformation space when it is pressed, thereby realizing the elastic deformation of the second held part.

[0016] As a preferred embodiment of the double-locking structure of the aforementioned battery, a connecting part is provided in the clearance groove at a position corresponding to the first end of the second retained part, and the first end of the second retained part is supported and connected to the connecting part.

[0017] The connection part allows for a gap between the second retaining part and the bottom of the clearance groove, forming a deformation space for the elastic pressing component. Furthermore, the connection part facilitates the fixing of the first end of the elastic pressing component.

[0018] As a preferred embodiment of the double-lock structure of the aforementioned battery, the elastic pressing component further includes:

[0019] An elastic reset member is disposed between the second end of the elastic pressing assembly and the bottom of the clearance groove.

[0020] The elastic reset component enables the second end of the elastic pressing component to automatically reset, thereby improving the reset rate of the elastic pressing component.

[0021] As a preferred embodiment of the double-locking structure of the aforementioned battery, the elastic pressing component and the second retained part are integrally formed.

[0022] The elastic pressing component is made of a spring sheet, and the second held portion is an elastic protrusion formed by bending the spring sheet.

[0023] The elastic pressing component and the second held part are integrally molded structures. The second held part is an elastic protrusion formed by bending a spring sheet. The overall structure is simple and easy to manufacture.

[0024] As a preferred embodiment of the double-lock structure of the aforementioned battery, the elastic pressing component includes:

[0025] The elastic body includes two sets of elastic arms. One end of each elastic arm is connected to the battery end cap, and the other end of each elastic arm is connected by a connector to form a U-shaped structure. Each set of elastic arms is provided with a set of second holding parts, and each set of second holding parts cooperates with a set of second holding parts.

[0026] The pressing part is provided on the side of the connector where the elastic arm is not provided. When the pressing part is pressed, it causes the second held part to disengage from the second held part.

[0027] The elastic pressing component achieves locking by cooperating with two sets of second retaining parts, making the locking more secure; moreover, the pressing part can simultaneously drive the elastic body of the U-shaped structure to deform, so that the two sets of second retaining parts disengage from the corresponding second retaining parts, preventing the battery unit from twisting and allowing the battery unit to be removed more smoothly.

[0028] As a preferred embodiment of the double-lock structure of the aforementioned battery, the elastic pressing component includes:

[0029] An elastic body, one end of which is connected to the battery end cap, and the elastic body is provided with a second retaining part;

[0030] A pressing part is provided at the other end of the elastic body, and the pressing part is connected to the elastic body to form an L-shaped structure.

[0031] The elastic pressing component is connected to the elastic body and the pressing part to form an L-shaped structure. This structure is simple and easy to manufacture.

[0032] As a preferred embodiment of the double-locking structure of the aforementioned battery, the first retaining part is a groove provided on the battery end cap, and the first retaining part can extend into or retract from the groove.

[0033] The groove has a simple structure and is easy to manufacture.

[0034] As a preferred embodiment of the two-lock structure of the aforementioned battery, the battery lock is provided with a lock seat spring. When the battery unit is locked inside the frame, the lock seat spring abuts against the battery unit. The lock seat spring is configured to drive the battery unit to move toward the direction of detachment from the frame when the first lock is unlocked.

[0035] The lock seat spring is designed to drive the battery unit to move toward the direction of detachment from the frame when the first lock is unlocked, so as to automatically enter the locking position of the second lock.

[0036] The beneficial effects of this utility model are:

[0037] This utility model proposes a dual-lock structure for the battery. The battery lock has a first retaining part and a second retaining part, and the battery end cap has a first held part and a second held part. The first retaining part and the first held part cooperate to form a first lock for locking or unlocking the battery unit; the second retaining part and the second held part cooperate to form a second lock for locking or unlocking the battery unit. Unlocking the battery unit is achieved through these two locks, making it safer. The second held part of the dual-lock device attached to the battery lock is located upstream of the first held part in the direction of removing the battery unit from the vehicle frame, avoiding the problem of the second held part being stuck due to insufficient travel and unable to remove the battery. Attached Figure Description

[0038] Figure 1 This is an exploded view of the double-lock structure of the battery provided in Embodiment 1 of this utility model;

[0039] Figure 2 This is a schematic diagram of the battery unit and battery lock provided in Embodiment 1 of this utility model;

[0040] Figure 3 This is a schematic diagram of the battery lock provided in Embodiment 1 of this utility model;

[0041] Figure 4 This is a schematic diagram of the structure of the battery cell provided in Embodiment 1 of this utility model;

[0042] Figure 5This is an exploded view of the battery cell provided in Embodiment 1 of this utility model;

[0043] Figure 6 This is a schematic diagram of the battery's two-lock structure in the first holding position according to Embodiment 1 of this utility model;

[0044] Figure 7 yes Figure 6 A sectional view along line AA.

[0045] Figure 8 yes Figure 7 Enlarged view of point B along the middle edge;

[0046] Figure 9 This is a cross-sectional view of the battery's two-lock structure in the second holding position according to Embodiment 1 of this utility model;

[0047] Figure 10 yes Figure 9 A cross-sectional view along the CC line;

[0048] Figure 11 yes Figure 10 Enlarged view of point D along the middle edge;

[0049] Figure 12 This is a schematic diagram of the battery's two-lock structure when it is fully unlocked, according to Embodiment 1 of this utility model.

[0050] Figure 13 This is a schematic diagram of the battery cell provided in Embodiment 2 of this utility model.

[0051] In the picture:

[0052] 1. Chassis; 10. Mounting window;

[0053] 2. Battery cell; 21. Battery body; 22. Battery end cap; 23. Second end cap;

[0054] 220, clearance groove; 2201, support connecting column;

[0055] 221. The first part to be retained;

[0056] 222. The second part to be retained;

[0057] 223. Elastic pressing component;

[0058] 2231, Elastic body; 22311, Elastic arm; 22312, Connector; 2232, Pressing part;

[0059] 224. Elastic reset component;

[0060] 3. Battery lock; 30. Battery lock base; 301. Limiting groove; 31. First retaining part; 32. Second retaining part; 33. Lock base spring;

[0061] 5. Battery holder. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0063] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0066] Example 1:

[0067] Electric-assist bicycles typically use lithium batteries as their power source. High-capacity batteries are quite heavy, so many manufacturers design them to be located between the two wheels to achieve a balanced center of gravity. Whether the battery is internally mounted is also a point of interest; an internal battery allows for a smoother frame design, catering to riders' aesthetic preferences. Tubular battery mounting maintains a balanced weight distribution while avoiding any impact on the frame's aerodynamics.

[0068] To maintain the overall aesthetics of the frame, the battery is typically embedded in the tube from below and fixed to the tube using a mechanical locking mechanism. In existing technology, the battery cell and frame are locked and unlocked via a battery lock. However, this existing battery lock is a single lock, which can easily lead to safety issues.

[0069] To solve the above problems, such as Figures 1-5 As shown, this embodiment provides a two-lock structure for a battery, including a battery lock 3 disposed within a vehicle frame 1 and a battery unit 2 with a battery end cap 22. The two-lock structure is used to lock the battery unit 2 within the vehicle frame 1 or to unlock the battery unit 2 from the vehicle frame 1. The battery lock 3 includes a first holding part 31 and a second holding part 32. The battery end cap 22 is provided with a first held part 221 and a second held part 222. The second held part 222 is located upstream of the first held part 221 in the direction of removing the battery unit 2 from the vehicle frame 1. The first holding part 31 and the first held part 221 cooperate to form a first lock for locking or unlocking the battery unit 2. The second holding part 32 and the second held part 222 cooperate to form a second lock for locking or unlocking the battery unit 2.

[0070] The battery's dual-lock structure features a first holding part 31 that abuts against a first held part 221 to hold the battery unit 2 in a first holding position; or the first holding part 31 disengages from the first held part 221 to unlock the first lock. After unlocking the first lock, the second holding part 32 abuts against a second held part 222 to hold the battery unit 2 in a second holding position; or the second held part 222 disengages from the second holding part 32 to unlock the second lock. This dual-locking mechanism unlocks the battery unit 2, providing greater security.

[0071] The second holding part 222 of the battery lock's double-locking device is located upstream of the first holding part 221 in the direction of removing the battery unit 2 from the frame 1, thus avoiding the problem that the second holding part 222 is stuck by the second holding part 32 due to its small travel and cannot remove the battery unit 2.

[0072] Optionally, the frame 1 is a tubular structure, and a mounting window 10 is provided on the side wall of the frame 1. The battery unit 2 is installed in the frame 1 through the mounting window 10 or removed from the frame 1 through the mounting window 10.

[0073] Optionally, a battery holder 5 is provided inside the frame 1. The battery holder 5 and the battery lock 3 are spaced apart and respectively located at both ends of the mounting window 10. One end of the battery unit 2 is positioned opposite to the battery holder 5 and can be installed on or removed from the battery holder 5. The other end of the battery unit 2 is positioned opposite to the battery lock 3 and can be locked inside the frame 1 or unlocked by the battery lock 3.

[0074] Specifically, the battery unit 2 is formed as a generally rectangular parallelepiped along its length. The battery unit 2 is configured to be held in a first holding position by the battery lock 3 and the battery holder 5, and can supply power to elements electrically connected to the battery holder 5 via the battery holder 5. Elements electrically connected to the battery holder 5 include electric components, which include at least one of an auxiliary drive unit, an electric transmission, an electric suspension, an electric seat post, a display device, a speedometer, and an electric operating device.

[0075] Furthermore, the battery unit 2 includes a battery body 21, and a battery end cap 22 is provided at the end of the battery body 21 opposite to the battery lock 3. The battery end cap 22 and the battery lock 3 can be locked or unlocked. A second end cap 23 is provided at the end of the battery body 21 not opposite to the battery lock 3. The second end cap 23 can be installed on the battery holder 5 or removed from the battery holder 5.

[0076] like Figure 5 As shown, both the first holding part 221 and the second holding part 222 are disposed on the battery end cover 22. A groove is provided on the end face of the battery end cover 22. The groove has a simple structure and is easy to manufacture. The groove is the first holding part 221, and the first holding part 31 can extend into or out of the groove. When the first holding part 31 extends into the groove, the battery unit 2 is located in the first holding position. When the first holding part 31 extends out of the groove, the first lock is unlocked.

[0077] Optionally, the battery's double-lock structure further includes an elastic pressing component 223. The elastic pressing component 223 is disposed on the battery end cap 22, and the second held portion 222 is disposed on the elastic pressing component 223. The elastic pressing component 223 is used to drive the second held portion 222 to elastically deform when pressed, so that the second held portion 222 disengages from the second held portion 32. Unlocking the second lock is achieved by pressing the elastic pressing component 223, making the operation relatively simple.

[0078] Optionally, such as Figure 5As shown, a clearance groove 220 is provided at the corresponding position of the battery end cap 22 and the elastic pressing component 223, and the elastic pressing component 223 is disposed within the clearance groove 220; the second held part 222 is an elastic protrusion provided on the elastic pressing component 223. The first end of the elastic pressing component 223 is connected to the battery unit 2, and the second end of the elastic pressing component 223 is spaced apart from the bottom of the clearance groove 220. When the second end of the elastic pressing component 223 is pressed, the second held part 222 undergoes elastic deformation. The clearance groove 220 allows the elastic pressing component 223 to have a certain deformation space when pressed, thereby realizing the elastic deformation of the second held part 222.

[0079] To achieve a gap between the second end of the elastic pressing component 223 and the bottom of the clearance groove 220, a connecting portion is provided in the clearance groove 220 at a position corresponding to the first end of the second held portion 222. This connecting portion is a support connecting post 2201, and the first end of the second held portion 222 is supported and connected to the support connecting post 2201. The provision of the support connecting post 2201 allows for a gap between the second held portion 222 and the bottom of the clearance groove 220, forming a deformation space for the elastic pressing component 223. Furthermore, the support connecting post 2201 facilitates the fixation of the first end of the elastic pressing component 223.

[0080] Optionally, the elastic pressing component 223 and the second held portion 222 are integrally molded; the elastic pressing component 223 is made of a spring sheet, and the second held portion 222 is an elastic protrusion formed by bending the spring sheet. The integral molding of the elastic pressing component 223 and the second held portion 222, with the second held portion 222 being an elastic protrusion formed by bending the spring sheet, results in a simple overall structure that is easy to manufacture.

[0081] Specifically, the elastic pressing component 223 includes an elastic body 2231 and a pressing part 2232. The elastic body 2231 includes two sets of elastic arms 22311. One end of the elastic arm 22311 is connected to the support connecting column 2201, and the other end of the elastic arm 22311 is connected through a connector 22312 to form a U-shaped structure. Each set of elastic arms 22311 is provided with a set of second held parts 222, and each set of second held parts 222 cooperates with a set of second held parts 32. The pressing part 2232 is provided on the side of the connector 22312 where the elastic arm 22311 is not provided. In this embodiment, the pressing part 2232 is provided at the middle position of the connector 22312. When the pressing part 2232 is pressed, it drives the second held parts 222 to disengage from the second held parts 32. The elastic pressing component 223 achieves locking by cooperating with the second holding part 32 through two sets of second holding parts 222, making the locking more secure; moreover, the pressing part 2232 can simultaneously drive the elastic body 2231 of the U-shaped structure to deform, so that the two sets of second holding parts 222 disengage from the corresponding second holding parts 32, preventing the battery unit 2 from twisting and making it easier to remove the battery unit 2.

[0082] Optionally, the elastic pressing assembly 223 further includes an elastic reset member 224, which is disposed between the second end of the elastic pressing assembly 223 and the bottom of the clearance groove 220. The elastic reset member 224 enables the second end of the elastic pressing assembly 223 to automatically reset, thereby improving the reset rate of the elastic pressing assembly 223.

[0083] In some embodiments, the elastic reset member 224 is a spring, one end of which abuts against the second end of the elastic pressing component 223, and the other end abuts against the bottom of the relief groove 220.

[0084] like Figure 3 As shown, the battery lock 3 includes a battery lock base 30, on which a lock cylinder is mounted. The lock cylinder is connected to a bolt hinged to one end of the battery lock base 30. The bolt is a first retaining part 31. By turning the lock cylinder with the key, the bolt extends into a groove, thereby holding the battery unit 2 in the first retaining position. By turning the lock cylinder with the key, the bolt disengages from the groove, thereby unlocking the first lock. Specifically, the locking and unlocking structure of the lock cylinder of the battery lock 3 is prior art and will not be described in detail here.

[0085] See also Figure 3The battery lock seat 30 has a recessed limiting groove 301. A second holding part 32 is disposed at the downstream end of the limiting groove 301 along the direction of battery disassembly. The second held part 222 can extend into the limiting groove 301 and move within it to abut against the second holding part 32. In this embodiment, the second holding part 32 is a stepped structure disposed on the groove wall of the limiting groove 301, which stops the battery unit 2 from continuing to move. The structure of this second holding part 32 is simple and easy to manufacture.

[0086] Optionally, the battery lock 3 is provided with a lock seat spring 33. When the battery unit 2 is locked inside the frame 1, the lock seat spring 33 abuts against the battery unit 2. The lock seat spring 33 is configured to drive the battery unit 2 to move toward the direction of detachment from the frame 1 when the first lock is unlocked. The lock seat spring 33 is configured to drive the battery unit 2 to move toward the direction of detachment from the frame 1 when the first lock is unlocked, so as to automatically enter the locking position of the second lock.

[0087] Unlocking process for battery cell 2:

[0088] like Figures 6-8 As shown, battery unit 2 is locked inside the frame 1, and at this time battery unit 2 is held in the first holding position;

[0089] When unlocking battery unit 2, the key is turned to rotate the lock cylinder, causing the first retaining part 31 to disengage from the first retained part 221, thus unlocking the first lock. Battery unit 2 is then ejected outwards by the lock seat spring 33. At this time, the second retaining part 32 abuts against the second retained part 222, and battery unit 2 remains in the second retaining position (see...). Figures 9-11 );

[0090] Then, pressing the pressing part 2232 causes the elastic arm 22311 and the second held part 222 to deform, so that the second held part 222 disengages from the second held part 32, thereby unlocking the second lock and allowing the battery unit 2 to be removed (see...). Figure 12 ).

[0091] Example 2:

[0092] This embodiment provides a two-lock structure for a battery. The elastic pressing component 223 in this embodiment has a different structure from the elastic pressing component 223 in Embodiment 1, such as... Figure 13As shown, the elastic pressing assembly 223 includes an elastic body 2231 and a pressing part 2232. One end of the elastic body 2231 is connected to the battery end cap 22. A second holding part 222 is provided on the elastic body 2231. The pressing part 2232 is provided at the other end of the elastic body 2231, and the pressing part 2232 is connected to the elastic body 2231 to form an L-shaped structure. The elastic pressing assembly 223 forms an L-shaped structure through the connection of the elastic body 2231 and the pressing part 2232. This structure is simple and easy to manufacture.

[0093] Since a set of second held portions 222 are provided on the elastic body 2231, correspondingly, in this embodiment, a set of second holding portions 32 are provided, and the second held portions 222 cooperate with the second holding portions 32.

[0094] The L-shaped elastic pressing component 223 has a relatively simple structure and is easy to manufacture.

[0095] The other structures in this embodiment are the same as those in Embodiment 1, and will not be described again here.

[0096] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery with a double-lock structure, characterized in that, Includes a battery lock (3) installed in the frame (1) and a battery unit (2) with a battery end cap (22). The battery's double-lock structure is used to lock the battery unit (2) in the frame (1) or to unlock the battery unit (2) from the frame (1). The battery lock (3) includes a first retaining part (31) and a second retaining part (32); The battery end cap (22) is provided with a first retaining part (221) and a second retaining part (222). The second retaining part (222) is located upstream of the first retaining part (221) in the direction of removing the battery unit (2) from the vehicle frame (1). The first retaining part (31) and the first retaining part (221) cooperate to form a first lock for locking or unlocking the battery unit (2). The second retaining part (32) and the second retained part (222) cooperate to form a second lock for locking or unlocking the battery unit (2).

2. The battery's double-lock structure according to claim 1, characterized in that, The battery's dual-lock structure also includes: An elastic pressing assembly (223) is disposed on the battery end cap (22), and the second retained part (222) is disposed on the elastic pressing assembly (223). The elastic pressing assembly (223) is used to drive the second retained part (222) to elastically deform when pressed, so that the second retained part (222) disengages from the second retained part (32).

3. The battery double-lock structure according to claim 2, characterized in that, The battery end cap (22) is provided with a clearance groove (220) at a position corresponding to the elastic pressing component (223), and the elastic pressing component (223) is disposed in the clearance groove (220); The second retained part (222) is an elastic protrusion provided on the elastic pressing component (223). The first end of the elastic pressing component (223) is connected to the battery end cap (22), and the second end of the elastic pressing component (223) is spaced apart from the bottom of the relief groove (220). When the second end of the elastic pressing component (223) is pressed, the second retained part (222) undergoes elastic deformation.

4. The battery's double-lock structure according to claim 3, characterized in that, A connecting portion is provided in the clearance groove (220) at a position corresponding to the first end of the second retained portion (222), and the first end of the second retained portion (222) is supported and connected to the connecting portion.

5. The battery's double-lock structure according to claim 3, characterized in that, The elastic pressing component (223) also includes: An elastic reset member (224) is disposed between the second end of the elastic pressing assembly (223) and the bottom of the relief groove (220).

6. The battery's double-lock structure according to claim 3, characterized in that, The elastic pressing component (223) and the second held part (222) are integrally molded structures; The elastic pressing component (223) is made of a spring sheet, and the second held part (222) is an elastic protrusion formed by bending the spring sheet.

7. The battery double-lock structure according to claim 3, characterized in that, The elastic pressing component (223) includes: The elastic body (2231) includes two sets of elastic arms (22311). One end of each elastic arm (22311) is connected to the battery end cap (22), and the other end of each elastic arm (22311) is connected by a connector (22312) to form a U-shaped structure. Each set of elastic arms (22311) is provided with a set of second holding parts (222), and each set of second holding parts (222) cooperates with a set of second holding parts (32). The pressing part (2232) is provided on the side of the connector (22312) where the elastic arm (22311) is not provided. When the pressing part (2232) is pressed, it causes the second held part (222) to disengage from the second held part (32).

8. The battery double-lock structure according to claim 3, characterized in that, The elastic pressing component (223) includes: An elastic body (2231) is provided with a second retaining part (222) on one end of the elastic body (2231) connected to the battery end cap (22). A pressing part (2232) is provided at the other end of the elastic body (2231), and the pressing part (2232) is connected to the elastic body (2231) to form an L-shaped structure.

9. The double-lock structure of the battery according to any one of claims 1-8, characterized in that, The first retaining part (221) is a groove provided on the battery end cap (22), and the first retaining part (31) can extend into or out of the groove.

10. The double-lock structure of the battery according to any one of claims 1-8, characterized in that, The battery lock (3) is provided with a lock seat spring (33). When the battery unit (2) is locked inside the frame (1), the lock seat spring (33) abuts against the battery unit (2). The lock seat spring (33) is configured to drive the battery unit (2) to move toward the direction of detaching from the frame (1) when the first lock is unlocked.

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