charger

Abstract

The application discloses a charger, which comprises a first shell, a second shell and a first rotating assembly, the second shell is rotationally connected with the first shell around a first axis, the second shell is rotationally connected with the first shell through the first rotating assembly, the first rotating assembly comprises a damping structure and a contact piece, the damping structure is arranged on one of the first shell and the second shell, the contact piece is arranged on the other one of the first shell and the second shell, the damping structure comprises a plurality of damping portions arranged along the circumference of the first shell, and the contact piece is sequentially contacted with the plurality of damping portions when the first shell and the second shell are relatively rotated. The embodiment increases the playing function of the charger, so that the user can feel the intermittent friction frustration and friction sound effect by rotating the shell, thereby relieving the user's stress or diverting the user's attention from the body and senses, thus realizing certain decompression effect and improving the practicability and interestingness of the charger.

Description

Technical Field

[0001] This application relates to the field of charging equipment technology, and more particularly to a charger. Background Technology

[0002] With the increasing popularity of mobile electronic devices such as mobile phones, tablets, and computers, the frequency of use of chargers for mobile electronic devices is also increasing. However, chargers are generally only used as pure charging carriers and do not have other functions, making the functions of chargers very limited. Utility Model Content

[0003] This application provides a charger that can increase the charger's functionality and expand its usage scenarios.

[0004] This application provides a charger, including:

[0005] First shell;

[0006] The second housing is rotatably connected to the first housing about the first axis.

[0007] A first rotating assembly is disposed between the first housing and the second housing, and the second housing is rotatably connected to the first housing via the first rotating assembly;

[0008] The first rotating component includes a damping structure and a contact element. The damping structure is disposed on one of the first housing and the second housing, and the contact element is disposed on the other of the first housing and the second housing. The damping structure includes a plurality of damping portions arranged circumferentially along the first housing. When the first housing and the second housing rotate relative to each other, the contact element contacts the plurality of damping portions in sequence.

[0009] Based on the charger in this application embodiment, this embodiment sets up a first housing and a second housing that can rotate relative to each other, and sets up a first rotating component between the first housing and the second housing. This allows the charger to rotate the second housing, driving the contact members to sequentially contact multiple damping parts to generate frictional resistance. The multiple damping parts are arranged at intervals, and the contact members can form intermittent contact with the damping parts during rotation. This provides the user with a rotating feel with intermittent frictional resistance and corresponding sound feedback during operation, improving the practicality and fun of the charger, and enriching the usage scenarios of the charger. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the charger structure in one embodiment of this application;

[0012] Figure 2 This is a schematic diagram of the charger structure in another embodiment of this application;

[0013] Figure 3 This is a schematic diagram of the charger structure in another embodiment of this application;

[0014] Figure 4 This is an exploded view of the first and second housings of the charger in one embodiment of this application;

[0015] Figure 5 This is an exploded view of the charger in another embodiment of this application;

[0016] Figure 6 for Figure 5 Enlarged structural diagram at point A;

[0017] Figure 7 This is a cross-sectional structural diagram of a charger according to one embodiment of this application;

[0018] Figure 8 This is a cross-sectional view of the charger in another embodiment of this application;

[0019] Figure 9 This is a cross-sectional structural diagram of the charger in another embodiment of this application.

[0020] Figure label:

[0021] 1. Charger;

[0022] 10. First housing; 11. Limiting groove; 12. Receiving cavity; 13. Shaft column; 14. Sliding groove; 141. First groove body; 142. Second groove body; 143. Limiting buckle; 15. First sub-housing; 16. Second sub-housing;

[0023] 20. Second housing; 21. Limiting component; 22. Bushing; 23. Protrusion;

[0024] 30. First rotating assembly; 31. Damping structure; 311. Damping part; 3111. Tooth structure; 32. Contact element; 321. First elastic element; 322. Elastic block; 323. Spring;

[0025] 40. Second elastic element;

[0026] 51. Plug; 52. Storage slot;

[0027] L1, the first axis. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] With the widespread use of mobile electronic devices such as smartphones, tablets, and computers, the frequency of use of chargers for these devices is also increasing. Simultaneously, as life, work, and study pressures increase, many people need to release anxiety or suppressed emotions through certain actions, or for a moment of relaxation. In related technologies, chargers, as a common tool in daily life, generally only function as a pure charging carrier, lacking functions such as stress-relieving playfulness; their functionality is quite limited. Therefore, adding other functions to chargers to enhance user experience and meet diverse user needs has become a current trend in technological development.

[0030] For the above situation, please refer to Figures 1-4 This application proposes a charger 1, including a first housing 10, a second housing 20 and a first rotating component 30. The first rotating component 30 is disposed between the first housing 10 and the second housing 20. The second housing 20 is rotatably connected to the first housing 10 about a first axis L1 through the first rotating component 30, so that the second housing 20 and the first housing 10 can rotate relative to each other.

[0031] The first rotating assembly 30 includes a damping structure 31 and a contact member 32. The damping structure 31 is disposed on one of the first housing 10 and the second housing 20, and the contact member 32 is disposed on the other of the first housing 10 and the second housing 20. The damping structure 31 includes a plurality of damping portions 311 arranged circumferentially along the first housing 10. When the first housing 10 and the second housing 20 rotate relative to each other, the contact member 32 contacts the plurality of damping portions 311 in sequence.

[0032] For example, the damping structure 31 is disposed on the first housing 10, and the contact member 32 is disposed on the second housing 20. When the first housing 10 and the second housing 20 rotate relative to each other, the second housing 20 drives the contact member 32 to move relative to the damping structure 31, so that the contact member 32 can contact different damping parts 311 in sequence, thereby generating a certain frictional feeling and providing rotational resistance for the rotation of the first housing 10 and the second housing 20. Similarly, the damping structure 31 can also be disposed on the second housing 20, and the contact member 32 can also be disposed on the second housing 20. The central axes of the first housing 10 and the second housing 20 coincide, and the first axis L1 is the central axis of the first housing 10 and the second housing 20. In this embodiment, the shape of the first housing 10 and the second housing 20 is not specifically limited. For example, the first housing 10 and the second housing 20 can have the same shape, both being prisms; or the first housing 10 and the second housing 20 can have different shapes, with the first housing 10 being a cuboid and the second housing 20 being a cylinder.

[0033] It should be noted that, in this embodiment of the application, by setting a first housing 10 and a second housing 20 that can rotate relative to each other, and by setting a first rotating component 30 between the first housing 10 and the second housing 20, the charger 1 can rotate the second housing 20 to drive the contact member 32 to contact a plurality of damping parts 311 in sequence, thereby generating frictional resistance. The plurality of damping parts 311 are arranged at intervals, and the contact member can form intermittent contact with the damping part 311 during rotation, thereby making the second housing 20 produce a jerky feeling when rotating. At the same time, when the contact member and the damping part 311 contact, a frictional sound effect is also generated, thereby providing the user with a rotating feel with intermittent frictional resistance and corresponding sound feedback during operation, thereby improving the practicality and fun of the charger 1 and enriching the usage scenarios of the charger 1.

[0034] It should also be noted that the charger 1 further includes an electrically connected power supply component and a plug 51. The power supply component is disposed in the first housing 10, and the plug 51 is rotatably connected to either the first housing 10 or the second housing 20, allowing the plug 51 to switch between a use position and a storage position, thereby achieving convenient storage and use of the plug 51 and improving the portability and practicality of the charger 1. For example, the plug 51 is disposed on the first housing 10, which has a storage slot 52 for storing the plug 51; or, the plug 51 is disposed on the second housing 20, which has a storage slot 52 for storing the plug 51. The first end of the plug 51 is electrically connected to the power supply component. When the plug 51 is rotated to the storage position, the plug 51 is located in the storage slot 52; when the plug 51 is rotated to the use position, the second end of the plug 51 extends out of the storage slot 52, and the charger 1 can be electrically connected to a socket or power source through the plug 51.

[0035] Please see Figure 3 In some embodiments of this application, the first housing 10 includes a first sub-housing 15 and a second sub-housing 16. The first sub-housing 15, the second sub-housing 16 and the second housing 20 are arranged sequentially along the extension direction of the first axis L1. The first sub-housing 15 is rotatably connected to the second sub-housing 16 through a second rotating assembly.

[0036] Specifically, a multi-stage rotation structure is formed between the first sub-shell 15, the second sub-shell 16, and the second shell 20, increasing the flexibility of the charger 1 shell rotation. The structure of the second rotation assembly is the same as that of the first rotation assembly 30. For example, the damping structure 31 in the second rotation assembly is disposed on the first sub-shell 15, and the contact element 32 in the second rotation assembly is disposed on the second sub-shell 16, achieving multi-stage frictional resistance and frictional sound effects through relative rotation; alternatively, the structure of the second rotation assembly may differ from that of the first rotation assembly 30, which is not specifically limited here.

[0037] In some embodiments, the first housing 10 may further include a plurality of sub-housings arranged along the extension direction of the first axis L1. The plurality of sub-housings are rotatably connected by a second rotating component to form a smooth multi-level rotation effect, further enhancing the user's operating pleasure and sensory experience, so that the charger 1 not only has the practical function of charging, but can also become a fun decompression tool.

[0038] Please see Figure 4 In some embodiments of this application, a receiving cavity 12 is formed between the first housing 10 and the second housing 20, and the damping structure 31 and the contact member 32 are both located in the receiving cavity 12. The damping structure 31 is disposed on the peripheral sidewall of the receiving cavity 12.

[0039] Understandably, the receiving cavity 12 can provide the first rotating component 30 with installation space and sufficient range of motion, ensuring that the damping structure 31 and the contact element 32 make effective contact during rotation, generating stable frictional resistance and sound effect. At the same time, the design of the receiving cavity 12 can also effectively protect the first rotating component 30, reduce the interference and wear of external factors on the damping structure 31 and the contact element 32, and extend their service life.

[0040] Specifically, the first housing 10 has a first side facing the second housing 20, a receiving groove is formed on the first side, and a damping structure 31 is disposed in the receiving cavity 12. The second housing 20 has a second side facing the first housing 10, and a contact member 32 is disposed on the second side. At least a portion of the contact member 32 extends into the receiving cavity 12 and contacts the damping portion 311 on the damping structure 31. The second side contacts the first side, thereby improving the sealing between the first housing 10 and the second housing 20, reducing the intrusion of dust and moisture, and ensuring that the damping portion 311 and the contact member 32 are tightly fitted during rotation. The damping structure 31 can be disposed around the peripheral wall or bottom wall of the receiving cavity 12 to ensure effective contact between the damping portion 311 and the contact member 32 when rotating at different angles, improving the uniformity and stability of frictional resistance and enhancing the consistency of sound effects.

[0041] In some embodiments of this application, a rotating fit structure is provided within the receiving cavity, through which the first housing and the second housing are rotatably connected about a first axis L1, thereby achieving relative rotation between the first housing and the second housing.

[0042] Further, please see Figure 4 In some embodiments of this application, the rotating fit structure includes a shaft post 13 disposed on the first housing 10 and a bushing 22 disposed on the second housing 20. The bushing 22 is sleeved on the shaft post 13, and the bushing 22 and the shaft post 13 are rotatably connected around the first axis L1, so that the first housing 10 and the second housing 20 are rotatably connected.

[0043] Specifically, a bearing can be installed between the shaft column 13 and the bushing 22 to reduce rotational friction and improve the smoothness of rotation. Simultaneously, the high precision of the fit between the bushing 22 and the shaft column 13 reduces the shaking generated between the first housing 10 and the second housing 20 during rotation, ensuring rotational stability. For example, a damping structure 31 is arranged around the peripheral wall of the receiving cavity 12, and a contact member 32 is disposed on the second housing 20. The first end of the contact member 32 is connected to the bushing 22, and the second end of the contact member 32 is in close contact with the damping structure 31 to form uniform frictional resistance.

[0044] It should be noted that the shaft post 13 on the first housing 10 is a hollow structure, so that part of the power components in the first housing 10 can pass through the shaft post 13, thereby providing space for the power components to extend out of the first housing 10, so that the power components can be electrically connected to an external structure through the pin 51. For example, the pin 51 is provided on the second housing 20, and part of the power components in the first housing 10 passes through the shaft post 13 and is electrically connected to the pin 51 on the second housing 20; or, the first housing 10 is also provided with a socket for electrical connection with an external device, and the socket is correspondingly provided with the hollow part of the shaft post 13, so that the external device can be electrically connected to the power components in the first housing 10 through the socket.

[0045] Furthermore, please see Figures 5-6 In some embodiments of this application, a sliding groove 14 is provided on the outer peripheral sidewall of the shaft post 13. The sliding groove 14 includes a first groove 141 and a second groove 142 that are connected. The first groove 141 extends along the periphery of the shaft post 13, and the second groove 142 extends along the extension direction of the first axis L1. The bushing 22 is provided with a protrusion 23 that cooperates with the sliding groove 14 on the side facing the shaft post 13. When the protrusion 23 is inserted into the first groove 141, the second housing 20 can rotate relative to the first housing 10 around the first axis L1. When the protrusion 23 is inserted into the second groove 142, the second housing 20 can move relative to the first housing 10 along the extension direction of the first axis L1.

[0046] Specifically, the sliding groove 14 provides a flexible guiding path for the protrusion 23, ensuring precise engagement between the first housing 10 and the second housing 20 under different motion states. The switching of the protrusion 23 between different grooves enables multi-dimensional movement of the second housing 20, ensuring both the flexibility of relative movement between the second housing 20 and the first housing 10 and enhancing overall stability. For example, as... Figure 5 As shown, there can be two protrusions 23, which are located on opposite sides of the bushing 22 to achieve balanced force on both sides of the bushing 22 and ensure the stability of the second housing 20 in multi-dimensional movement.

[0047] It should be noted that the second housing 20 can rotate around the first axis L1 and move axially along the extension direction of the first axis L1. This design improves the adjustability of the structure. In other words, when playing with the product, the user can rotate the second housing 20 or press the second housing 20 to achieve a multi-angle and multi-directional control experience, which increases the fun and practicality of the product.

[0048] Furthermore, such as Figure 6As shown, a limit buckle 143 is provided at the end of the first groove 141 away from the second groove 142. The limit buckle 143 is used to engage with the protrusion 23. The limit buckle 143 can fit tightly with the protrusion 23 to form a reliable locking mechanism, thereby preventing the protrusion 23 from sliding in the first groove 141 when no external force is applied, and ensuring the stability between the first housing 10 and the second housing 20.

[0049] For example, such as Figure 6 As shown, the first groove 141 and the second groove 142 are located on the outer peripheral sidewall of the shaft post 13. The limiting buckle 143 is in the form of a through hole, that is, the limiting buckle 143 passes through the shaft post 13. When the protrusion 23 slides in the first groove 141 to the position of the limiting buckle 143, at least a part of the protrusion 23 can be inserted into the through hole of the limiting buckle 143 from the first groove 141, thereby locking and limiting the bushing 22 and the shaft post 13.

[0050] Furthermore, such as Figure 5 As shown, a second elastic member 40 is also provided between the first housing 10 and the second housing 20. The second elastic member 40 is used to drive the second housing 20 to move away from the first housing 10 when the protrusion 23 is inserted into the second groove 142.

[0051] It is easy to understand that the second elastic element 40 can provide elastic resistance to the second housing 20. When the user presses the second housing 20, the second elastic element 40 compresses and stores energy, and quickly recovers after being released, providing a smooth rebound effect and enhancing the tactile feedback of the operation. At the same time, when the protrusion 23 is inserted into the second groove 142, the second elastic element 40 can drive the second housing 20 to move along the extension direction of the first axis L1, and the second elastic element 40 can maintain a certain elasticity and cushioning, thereby increasing the pressing resistance of the second housing 20. The second elastic element 40 can be a spring 323, a spring sheet, or a spring 323 tube.

[0052] Please see Figures 5-7 In some embodiments of this application, the damping part 311 includes a plurality of tooth structures 3111. When the first housing 10 and the second housing 20 rotate relative to each other, the contact member 32 abuts against each of the plurality of tooth structures 3111 in sequence to form an intermittent contact between the contact member 32 and the plurality of tooth structures 3111, thereby causing the second housing 20 to produce a jerking sensation when rotating.

[0053] In some embodiments, the multiple tooth structures 3111 may have the same shape and the multiple tooth structures 3111 may be evenly arranged along the circumference of the first housing 10, thereby ensuring that the damping force of the second housing 20 is evenly distributed during rotation, and also making the frictional sound generated by the second housing 20 during rotation the same.

[0054] Alternatively, in other embodiments, such as Figure 7 As shown, the shapes of the multiple tooth structures 3111 are different. For example, the tooth heights of at least two tooth structures 3111 are different; the tooth widths of at least two tooth structures 3111 are different; and the tooth heights and tooth widths of at least two tooth structures 3111 are both different. In the above embodiments, the frictional resistance generated when the contact member 32 contacts different tooth structures 3111 will change, thereby affecting the rotational damping and frictional sound effect of the second housing 20, thus enriching the rotational experience between the second housing 20 and the first housing 10, so that the user can feel a unique tactile and auditory feedback in every rotational operation. Preferably, multiple tooth structures 3111 are arranged around the first housing 10. The tooth height of the multiple tooth structures 3111 increases gradually from the starting position until the tooth height of the tooth structure 3111 reaches its maximum at a position relative to the starting position, and then gradually decreases until the tooth structure 3111 reaches the starting position. This creates a gradient change of multiple tooth structures 3111 to generate progressively changing frictional resistance, thereby creating a progressive damping effect, improving the level of operational perception, ensuring that users receive differentiated feedback at different rotation stages, and optimizing the overall user experience.

[0055] Alternatively, in some embodiments, two adjacent tooth structures 3111 form a set of teeth, and the tooth pitch between the two tooth structures 3111 in at least two sets of teeth is different, so that the contact member 32 passes through different sets of teeth at different time intervals, thereby forming a damping effect with rhythmic changes and increasing the dynamic feel of operation.

[0056] In some embodiments of this application, the contact member 32 includes a first elastic member 321. The first elastic member 321 is used to buffer the impact force when in contact with the damping structure 31. That is, when the first elastic member 321 is in contact with the damping structure 31, it can undergo elastic deformation to buffer the impact force generated when the contact member 32 contacts the damping structure 31 during rotation. This helps the contact member 32 pass through the damping structure 31 more smoothly, reduces wear, and improves the smoothness of operation.

[0057] The damping part 311 and the contact element 32 can be made of the same material, for example, both of them can be made of plastic or metal; or, the damping part 311 and the contact element 32 can be made of different materials, for example, one of them can be made of plastic and the other of metal. Preferably, the damping part 311 is a metal tooth structure 3111 and the first elastic element 321 is a metal spring sheet, so as to improve the durability and stability of the overall structure.

[0058] Alternatively, in some embodiments, such as Figure 8As shown, the damping structure 31 is disposed on the first housing 10, and the contact element 32 includes an elastic block 322 and a spring 323. One end of the spring 323 is connected to the second housing 20, and the other end of the spring 323 is connected to the elastic block 322. The elastic block 322 contacts and collides with the tooth structure 3111, thereby compressing the spring 323 so that the elastic block 322 can move to the next tooth structure 3111 after passing through one tooth structure 3111.

[0059] Please see Figures 7-8 In some embodiments of this application, the damping structure 31 is a ring structure continuously arranged along the circumference of the first housing 10, that is, the damping structure 31 surrounds the first housing 10 in a circle, thereby ensuring that the second housing 20 can contact the damping part 311 of the damping structure 31 at different angles to obtain a stable damping effect.

[0060] Alternatively, in some embodiments, such as Figure 9 As shown, the damping structure 31 is an arc-shaped structure that extends circumferentially along part of the first housing 10. That is, the damping structure 31 extends in a partially circular shape. In other words, during the rotation of the second housing 20, it only contacts the damping part 311 within a certain angle range to form a local damping area. This makes the second housing 20 produce obvious damping sensation within a specific angle, while it is smoother at other angles. This achieves rhythmic changes during the rotation process, enhancing the user's operational perception and enjoyment.

[0061] Please see Figure 9 In some embodiments of this application, a limiting groove 11 is provided on one of the first housing 10 and the second housing 20, and a limiting member 21 is provided on the other of the first housing 10 and the second housing 20. The limiting groove 11 extends circumferentially along the first housing 10, and the limiting member 21 is fitted in the limiting groove 11 to limit the rotation angle of the second housing 20 relative to the first housing 10 along the limiting groove 11.

[0062] For example, the first housing 10 is provided with a limiting groove 11, and the second housing 20 is provided with a limiting member 21. The limiting member 21 slides in the limiting groove 11 to limit the rotation angle of the second housing 20 relative to the first housing 10 along the limiting groove 11. Specifically, the limiting groove 11 can provide guidance and limit the sliding path of the limiting member 21, ensuring that the second housing 20 rotates smoothly within a specific angle range. At the same time, it makes the second housing 20 generate a clear stopping point when it rotates to the end of the limiting groove 11, so as to precisely control the rotation angle of the second housing 20 within a preset range.

[0063] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0064] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A charger, characterized in that, include: First shell; The second housing is rotatably connected to the first housing about the first axis. A first rotating assembly is disposed between the first housing and the second housing, and the second housing is rotatably connected to the first housing via the first rotating assembly; The first rotating component includes a damping structure and a contact element. The damping structure is disposed on one of the first housing and the second housing, and the contact element is disposed on the other of the first housing and the second housing. The damping structure includes a plurality of damping portions arranged circumferentially along the first housing. When the first housing and the second housing rotate relative to each other, the contact element contacts the plurality of damping portions in sequence.

2. The charger according to claim 1, characterized in that, The damping part includes multiple tooth structures. When the first housing and the second housing rotate relative to each other, the contact member sequentially abuts against each of the multiple tooth structures.

3. The charger according to claim 2, characterized in that, At least two of the tooth structures have different tooth heights and / or tooth widths; and / or, Two adjacent tooth structures form a tooth group, and the tooth pitch between two tooth structures in at least two tooth groups is different.

4. The charger according to claim 1, characterized in that, The contact element includes a first elastic element, which is used to buffer the impact force when in contact with the damping structure.

5. The charger according to claim 1, characterized in that, The damping structure is a ring-shaped structure continuously arranged along the circumference of the first housing; or, the damping structure is an arc-shaped structure extending along a portion of the circumference of the first housing.

6. The charger according to claim 1, characterized in that, One of the first housing and the second housing is provided with a limiting groove, and the other is provided with a limiting member. The limiting groove extends circumferentially along the first housing, and the limiting member is fitted in the limiting groove to limit the rotation angle of the second housing relative to the first housing.

7. The charger according to claim 1, characterized in that, A receiving cavity is formed between the first housing and the second housing, and the damping structure and the contact are both located in the receiving cavity. The damping structure is disposed on the peripheral sidewall of the receiving cavity.

8. The charger according to claim 7, characterized in that, The cavity is provided with a rotating fit structure, through which the first housing and the second housing are rotatably connected about the first axis, so as to realize the relative rotation of the first housing and the second housing.

9. The charger according to claim 8, characterized in that, The rotating fit structure includes a shaft post disposed on the first housing and a bushing disposed on the second housing. The bushing is sleeved on the shaft post, and the bushing and the shaft post are rotatably fitted around the first axis.

10. The charger according to claim 9, characterized in that, A sliding groove is provided on the outer peripheral sidewall of the shaft column. The sliding groove includes a first groove and a second groove that are connected. The first groove extends along the periphery of the shaft column, and the second groove extends along the direction of the first axis. The bushing has a protrusion on the side facing the shaft post that mates with the sliding groove. When the protrusion is inserted into the first groove, the second housing can rotate relative to the first housing around the first axis. When the protrusion is inserted into the second groove, the second housing can move relative to the first housing along the direction of the first axis.

11. The charger according to claim 10, characterized in that, A second elastic element is also provided between the first housing and the second housing. The second elastic element is used to drive the second housing to move away from the first housing when the protrusion is inserted into the second groove.

12. The charger according to claim 1, characterized in that, The first housing includes a first sub-shell and a second sub-shell. The first sub-shell, the second sub-shell, and the second housing are arranged sequentially along the direction of the first axis. The first sub-shell is rotatably connected to the second sub-shell through a second rotating assembly. The structure of the second rotating assembly is the same as that of the first rotating assembly.

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