CN116054353A

CN116054353A - Automatic clamping wireless charger and automatic clamping method

Info

Publication number: CN116054353A
Application number: CN202310308570.6A
Authority: CN
Inventors: 周永静; 徐龙江; 王旭; 程黎辉; 关亚东
Original assignee: Nanchang Longqi Information Technology Co ltd
Current assignee: Nanchang Longqi Information Technology Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-05-02
Anticipated expiration: 2043-03-28
Also published as: CN116054353B

Abstract

The invention discloses an automatic clamping wireless charger and an automatic clamping method, wherein the automatic clamping wireless charger part comprises a clamping mechanism, a front shell component, a peripheral bracket provided with a first assembly opening part and a main board; the clamping mechanism comprises an electromagnetic driving assembly and a first sliding block; the electromagnetic driving assembly is fixed with the first sliding block; the front shell component is arranged in the peripheral bracket; the main board is fixed on the front shell component; the clamping mechanism is arranged at the first assembly opening part and is fixed with the peripheral bracket; the first sliding block is arranged in the peripheral bracket in a sliding way; the electromagnetic driving assembly is electrically connected with the main board. According to the automatic clamping wireless charger and the automatic clamping method disclosed by the invention, the polarity of the magnetic field after the electromagnetic coil is electrified is converted, so that the first sliding block is controlled to slide out and back, and the mobile phone can be clamped and released.

Description

Automatic clamping wireless charger and automatic clamping method

Technical Field

The invention relates to the field of wireless charging, in particular to an automatic clamping wireless charger and an automatic clamping method.

Background

As a transportation means, automobiles integrate more and more functions, such as vehicle-mounted wireless chargers, and can wirelessly charge mobile phones in the process of driving. The existing vehicle-mounted mobile phone charger comprises a mobile phone support and a charging device arranged in the mobile phone support, wherein the mobile phone support comprises a support body, the support body is provided with a supporting arm, two clamping arms and a linkage mechanism for driving the two clamping arms to follow the supporting arm to synchronously move, the support drives the supporting arm to slide downwards by using the gravity of the mobile phone, and the supporting arm drives the two clamping arms to move in opposite directions through the linkage mechanism in the sliding process of the supporting arm to clamp the mobile phone together with the supporting arm, so that the mobile phone charger is suitable for mobile phones with different sizes, or after the mobile phone is detected to be close to the support body by adopting infrared induction, the side edges of the mobile phone are clamped by the two clamping arms.

The vehicle-mounted mobile phone charger can clamp the mobile phone only when the mobile phone is in a vertical state, and the continuous strong clamping force can possibly cause misoperation of a side key of the mobile phone.

Disclosure of Invention

The invention aims to provide an automatic clamping wireless charger and an automatic clamping method, which solve the problems that in the prior art, a vehicle-mounted mobile phone charger can clamp a mobile phone only when the mobile phone is in a vertical state, and continuous strong clamping force can possibly cause misoperation of a mobile phone side key.

The invention provides an automatic clamping wireless charger, which comprises a clamping mechanism, a front shell assembly, a peripheral bracket provided with a first assembly opening part and a main board, wherein the front shell assembly is provided with a first assembly opening part; the clamping mechanism comprises an electromagnetic driving assembly and a first sliding block; the electromagnetic driving assembly is fixed with the first sliding block; the front shell component is arranged in the peripheral bracket; the main board is fixed on the front shell component; the clamping mechanism is arranged at the first assembly opening part and is fixed with the peripheral bracket; the first sliding block is arranged at the top of the front shell component in a sliding way after being inserted into the first assembly opening part; the electromagnetic driving assembly is electrically connected with the main board.

Preferably, the electromagnetic driving assembly comprises an ejection magnet, an electromagnetic coil and an electromagnetic valve shaft matched with the electromagnetic coil; the clamping mechanism comprises a base; the electromagnetic coil is fixed with the base; the ejection magnet is fixed at one end of the electromagnetic coil; the electromagnetic valve shaft is arranged in the electromagnetic coil in a sliding manner; the first sliding block is fixed with one end of the electromagnetic valve shaft; the electromagnetic coil is electrically connected with the main board.

Preferably, the electromagnetic driving assembly further comprises a return magnet; the return magnet and the electromagnetic coil are coaxially arranged; the return magnet is fixed with the base.

Preferably, the clamping mechanism further comprises a first guide rail; the first guide rail is fixed in the base; the bottom of the first sliding block is provided with a guide groove matched with the first guide rail.

Preferably, the peripheral support comprises a first side wall, a second side wall, a third side wall and a fourth side wall; the first side wall, the second side wall, the third side wall and the fourth side wall are connected end to form a rectangular frame; the front shell component is clamped in the peripheral support and is enclosed with the peripheral support into a placing groove.

Preferably, the first fitting opening portion is provided on the first side wall; the first assembly opening part is communicated with the placing groove; the base is arranged at the first assembly opening part and is connected with the peripheral support.

Preferably, the automatic clamping wireless charger provided by the invention further comprises a first distance sensing device; a first mounting hole matched with the first distance sensing device is formed in the top of the front shell assembly; the first distance sensing device is assembled at the first mounting hole; the first distance sensing device is electrically connected with the main board.

Preferably, the clamping mechanism further comprises a second distance sensing device, and the second distance sensing device is fixed in the base; the second distance sensing device is electrically connected with the main board.

Preferably, one end of the first sliding block far away from the base is V-shaped.

Preferably, the automatic clamping wireless charger provided by the invention further comprises a coil assembly and a lifting assembly; the coil component is connected with the lifting component; the coil assembly and the lifting assembly are electrically connected with the main board.

Preferably, the lifting assembly comprises an electric lifting rod provided with an execution end and a fixed end, a second guide rail and a coil supporting plate provided with a bushing; the second guide rail penetrates through the bushing and then is fixed with the front shell assembly; the coil assembly is fixed on one side of the coil support plate; the execution end is fixed with the other side of the coil supporting plate; the fixed end is fixed with the main board.

Preferably, the tops of the first side wall, the second side wall, the third side wall and the fourth side wall extend outwards to form a rectangular baffle with a hollow inside; two first grooves are symmetrically formed in the top of the rectangular baffle; both the first grooves are communicated with the placing groove.

Preferably, a stop is extended from the top of the third sidewall toward the first sidewall.

The automatic clamping method provided by the invention comprises the following steps of:

s1, identifying whether a mobile phone is placed or not through a first distance sensing device, if yes, executing S2, and if not, executing S5;

s2, inputting forward current to the electromagnetic driving assembly through the main board to push the first sliding block to slide out to clamp the mobile phone;

s3, calculating the maximum sliding distance when the first sliding block clamps the mobile phone through the second distance sensing device, and recording the maximum sliding distance as C;

s4, judging whether the retreating distance of the first sliding block is larger than B, if so, executing S5, and if not, executing S6;

s5, inputting reverse current to the electromagnetic driving assembly, and retracting the first sliding block to an initial position;

s6, increasing input forward current to the electromagnetic driving assembly through the main board, and continuing to execute S2.

Compared with the prior art, the automatic clamping wireless charger has the beneficial effects that:

1. the polarity of the magnetic field after the electromagnetic coil is electrified is converted, so that the first sliding block is controlled to slide out and back, and the mobile phone can be clamped and loosened;

2. the traditional side fixing mode is changed, and the top or bottom is clamped and fixed, so that misoperation of a side key of a mobile phone is prevented;

3. the coil component is driven by the lifting component to reciprocate, and when the coil component moves to the optimal charging position of the mobile phone, the coil component automatically stops moving, so that automatic and accurate positioning of wireless charging is realized.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of an automatic clamping wireless charger provided by the invention;

FIG. 2 is a schematic side sectional view of the self-clamping wireless charger according to the present invention;

FIG. 3 is a schematic view of the top view of an explosive structure of a clamping mechanism and a peripheral support according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an initial state of an electromagnetic valve shaft in a clamping mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a sliding-out state of an electromagnetic valve shaft in a clamping mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating an assembly of a clamping mechanism and a peripheral bracket according to an embodiment of the present invention;

FIG. 7 is a schematic diagram showing a relative position between the first slider retracted to an initial state and the peripheral frame according to an embodiment of the present invention;

FIG. 8 is a schematic diagram showing the relative positions of the first slider and the peripheral support after the first slider slides out to clamp the mobile phone according to the embodiment of the present invention;

fig. 9 is a schematic diagram showing an assembly structure of a coil assembly and a coil support plate according to an embodiment of the present invention;

FIG. 10 is a schematic view of an exploded view of a coil assembly and a lifting assembly according to an embodiment of the present invention;

fig. 11 is a schematic diagram of an assembly structure of an electric lifting rod and a main board according to an embodiment of the invention;

FIG. 12 is a schematic view of an assembly structure of a lifting assembly and a front housing assembly according to an embodiment of the present invention;

fig. 13 is a schematic view illustrating an assembly structure of an electric lifter and a coil support plate according to an embodiment of the present invention

Fig. 14 is a schematic diagram of an assembly structure of a lifting assembly and a main board according to an embodiment of the invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

As shown in fig. 1 to 14, the automatic clamping wireless charger provided in this embodiment includes a clamping mechanism 2, a front case assembly 3, a peripheral stand 1 provided with a first fitting opening portion 13, and a main board 5; the clamping mechanism 2 comprises an electromagnetic driving assembly and a first sliding block 21; the electromagnetic driving assembly is fixed with the first sliding block 21; the front shell component 3 is arranged in the peripheral bracket 1; the main board 5 is fixed on the front shell component 3; the clamping mechanism 2 is arranged at the first assembly opening part 13 and is fixed with the peripheral bracket 1; the first sliding block 21 is arranged at the top of the front shell component 3 in a sliding way after being inserted into the first assembling opening 13; the electromagnetic drive assembly is electrically connected to the main board 5.

It can be understood by those skilled in the art that after the front shell assembly 3 is assembled into the peripheral support 1, the mobile phone is placed on the top of the front shell assembly 3, the electromagnetic driving assembly starts to act, the first sliding block 21 is pushed to slide towards the mobile phone end, after the other end of the mobile phone is propped against the inner wall of the peripheral support 1, the mobile phone is clamped by the first sliding block 21 and the inner wall of the peripheral support 1, so that on one hand, the automatic clamping wireless charger provided by the embodiment can be installed in any posture to fix the mobile phone, and on the other hand, the clamping mechanism 2 clamps the top or the bottom of the mobile phone, so that the side keys of the mobile phone are prevented from being extruded in the existing side fixing mode, and misoperation is generated. The main board 5 is internally provided with a control chip, and can be connected with an external power supply through a circuit.

Further, the electromagnetic driving assembly comprises an ejection magnet 25, an electromagnetic coil 26 and an electromagnetic valve shaft 24 matched with the electromagnetic coil 26; the clamping mechanism includes a base 22; the electromagnetic coil 26 is fixed with the base 22; the ejector magnet 25 is fixed at one end of the electromagnetic coil 26; the electromagnetic valve shaft 24 is slidably arranged in the electromagnetic coil 26; the first slider 21 is fixed with one end of the electromagnetic valve shaft 24; the electromagnetic coil 26 is electrically connected to the main board 5. As can be appreciated by those skilled in the art, in the present embodiment, the ejector magnet 25 is an S-pole permanent magnet, as shown in fig. 5, when the electromagnetic coil 26 is positively energized, a strong magnetic field N pole is generated at one end of the electromagnetic shaft 24 near the ejector magnet 25, and the strong magnetic field N pole attracts the ejector magnet 25, and the electromagnetic shaft 24 ejects outwards under the action of the magnetic field, so as to drive the first slider 21 to start moving, thereby clamping the mobile phone; when the current is switched, the polarities of the magnetic fields generated by the electromagnetic coils 26 are interchanged, as shown in fig. 4, the electromagnetic shaft 24 generates a strong magnetic field S pole at one end close to the ejector magnet 25, and the ejector magnet 25 repels each other, and the electromagnetic shaft 24 drives the first slider 21 to retract and slide under the action of the magnetic field, so that the initial position is restored. The magnetic field direction is changed by switching the current, so that the sliding-out and retracting movement of the first slider 21 is realized. When the external power supply is turned off, the first slider is kept in a clamped state by the magnetic attraction force of the ejector magnet 25.

Further, the electromagnetic drive assembly also includes a return magnet 27; the return magnet 27 and the electromagnetic coil 26 are coaxially arranged; the return magnet 27 is fixed to the base 22. As can be appreciated by those skilled in the art, the return magnet 27 is an N-pole permanent magnet, and by adding one return magnet 27, when the electromagnetic coil 26 is energized in the forward direction, since the strong magnetic field generated by the end of the electromagnetic valve shaft 24 close to the ejector magnet 25 has the same polarity as the return magnet 27, when the electromagnetic coil 26 switches the current flow direction, the polarity of the strong magnetic field is opposite to that of the return magnet 27, so that the ejection and retraction effects of the electromagnetic valve shaft are further improved.

Further, the clamping mechanism 2 further comprises a first guide rail 23; the first guide rail 23 is fixed in the base 22; the bottom of the first slider 21 is provided with a guide groove matched with the first guide rail 23.

As will be appreciated by those skilled in the art, the first slider 21 may slide on the first guide rail 23 through the guide groove, so that the first slider 21 slides more stably.

Further, the peripheral support 1 comprises a first side wall 14, a second side wall 15, a third side wall 16 and a fourth side wall 17; the first side wall 14, the second side wall 15, the third side wall 16 and the fourth side wall 17 are connected end to form a rectangular frame; the front shell component 3 is clamped in the peripheral support 1 and is enclosed with the peripheral support 1 to form a placing groove. It will be appreciated by those skilled in the art that the top of the front housing assembly 3 and the first, second, third and

fourth side walls

14, 15, 16 and 17 enclose a slot for receiving a mobile phone.

Further, the first fitting opening portion 13 is provided on the first side wall 14; the first assembly opening 13 is communicated with the placing groove; the base 22 is provided at the first fitting opening portion 13 to be connected to the peripheral bracket 1.

As will be appreciated by those skilled in the art, the clamping mechanism 2 is mounted at the first mounting opening 13, which can make the layout of the self-clamping wireless charger provided by the present embodiment attractive.

Further, the automatic clamping wireless charger provided by the embodiment further comprises a first distance sensing device 7; a first mounting hole matched with the first distance sensing device 7 is formed in the top of the front shell assembly 3; the first distance sensing device 7 is assembled at the first mounting hole; the first distance sensing device 7 is electrically connected with the main board 5.

As will be appreciated by those skilled in the art, when the mobile phone is placed in the placement groove, the first distance sensing device 7 records that the distance data is unchanged for 2 seconds, which means that the mobile phone is already placed, a signal is transmitted to the main board 5, the main board 5 drives the electromagnetic valve shaft 24 to move by forward energizing the electromagnetic coil 26, and the electromagnetic valve shaft 24 pushes the first slider 21 to move, so as to complete clamping of the mobile phone. The first distance sensing device 7 is a prior art in the field, and is not described in detail herein.

Further, the clamping mechanism 2 further comprises a second distance sensing device 8, wherein the second distance sensing device 8 is fixed in the base 22; the second distance sensing device 8 is electrically connected to the main board 5. It will be understood by those skilled in the art that the second distance sensing device 8 located inside the base 22 senses that the first slider 21 is far away, sends a signal to the main board 5 to adjust the current intensity corresponding to the electromagnetic coil 26, gradually increases the magnetic field intensity, when the movement of the first slider 21 stops, which indicates that the mobile phone is clamped, the second distance sensing device 8 keeps constant current output to the electromagnetic coil 26 according to the read value, continuously clamps the mobile phone by generating constant thrust, and at this time, the maximum sliding distance C is recorded as the sliding distance C of the first slider 21, when the mobile phone is driven to retract by the moving mobile phone due to vibration caused by sudden external force such as bump or brake of the vehicle during driving, when the retracting distance is smaller than B, the main board 5 increases current output to the electromagnetic coil 26, increases the magnetic field intensity, so as to continuously clamp the mobile phone, when the retracting distance is larger than B, it is determined that the user needs to take out the mobile phone, the electromagnetic coil 26 outputs reverse current, the polarity of the electromagnetic slider 24 is switched, when the first valve shaft 21 is in the initial position, so that the electromagnetic magnet 24 is pushed out of the mobile phone by the electromagnetic shaft, and the electromagnetic coil 24 is continuously attracted by the electromagnetic shaft, and the electromagnetic coil 24 is placed in the reset condition, and the reset condition is further, and the electromagnetic coil is kept out by the electromagnetic shaft 25. The retraction distance B can be set to the second distance sensing means 8 according to the need.

Further, an end of the first slider 21 away from the base 22 is V-shaped.

As will be appreciated by those skilled in the art, the end of the first slider 21 remote from the base 22 is understood to be the end that contacts the mobile phone; on the one hand, when the first slider 21 moves, the mobile phone can slide along the V-shaped section of the first slider 21, and on the other hand, when the first slider 21 clamps the mobile phone, the V-shaped section can clamp the mobile phone on the V-shaped section, so that the mobile phone is prevented from sliding out of the placing groove.

Further, the automatic clamping wireless charger provided by the embodiment further comprises a coil assembly 6 and a lifting assembly 4; the coil assembly 6 is connected with the lifting assembly 4; the coil assembly 6 and the lifting assembly 4 are electrically connected with the main board 5.

It can be understood by those skilled in the art that after the mobile phone is placed in the placement groove, electromagnetic interference is generated between the main board 5 and the transmitting coil of the mobile phone, the main board 5 controls the lifting assembly 4 to move, the lifting assembly 4 drives the coil assembly 6 to reciprocate, the coil assembly 6 interferes with the transmitting coil of the mobile phone to generate different intensity signals in the moving process, when the coil assembly is located under the transmitting coil of the mobile phone, the signal intensity captured by the main board 5 is strongest, at this time, the main board 5 sends an electric signal to the lifting assembly 4, and the lifting assembly is controlled to stop at the position with the strongest signal and the highest charging efficiency, so that the accurate positioning and charging function of the automatic clamping wireless charger provided by the embodiment is realized. The coil assembly 6 is known in the art and will not be described in detail herein.

Further, the lifting assembly 4 includes an electric lifting rod 41 provided with an actuating end and a fixed end, a second guide rail 42, and a coil support plate 43 provided with a bushing; the second guide rail 42 penetrates through the bushing and is fixed with the front shell assembly 3; the coil block 6 is fixed to the coil support plate 43 side; the actuating end is fixed to the other side of the coil support plate 43; the fixed end is fixed with the main board 5.

It can be appreciated by those skilled in the art that the main board 5 and the second guide rail 42 are both fixed on the front shell assembly 3, so that the coil support board 43 can be driven to reciprocate by the sliding out and retracting of the executing end of the electric lifting rod 41, and then the coil assembly 6 is driven to reciprocate, and as the coil support board 43 can only move along the length direction of the front shell assembly 3, when the vehicle shakes or other jolts, the coil assembly 6 is ensured to move along the length direction of the front shell assembly 3, thereby further improving the charging stability of the automatic clamping wireless charger provided by the embodiment.

Further, the top parts of the first side wall 14, the second side wall 15, the third side wall 16 and the fourth side wall 17 all extend outwards to form a rectangular baffle 18 with a hollow interior; two first grooves 12 are symmetrically formed in the top of the rectangular baffle 18; both of the first grooves 12 are in communication with the placement groove.

It will be appreciated by those skilled in the art that the first recess 12 is provided to facilitate the user's handling of the handset.

Further, a stop 11 extends from the top of the third sidewall 16 toward the first sidewall 14.

As will be appreciated by those skilled in the art, the stopper 11 may limit one end of the mobile phone to the placement groove, so as to prevent the first slider 21 from sliding out of the placement groove during the process of clamping the mobile phone, thereby affecting the clamping effect.

Example two

The automatic clamping method provided by the embodiment comprises the following steps of:

It will be understood by those skilled in the art that the second distance sensing device 8 located inside the base 22 senses that the first slider 21 is far away, sends a signal to the main board 5 to adjust the current intensity corresponding to the electromagnetic coil 26, gradually increases the magnetic field intensity, when the movement of the first slider 21 stops, which indicates that the mobile phone is clamped, the second distance sensing device 8 keeps constant current output to the electromagnetic coil 26 according to the read value, continuously clamps the mobile phone by generating constant thrust, and at this time, the maximum sliding distance C is recorded as the sliding distance C of the first slider 21, when the mobile phone is driven to retract by the moving mobile phone due to vibration caused by sudden external force such as bump or brake of the vehicle during driving, when the retracting distance is smaller than B, the main board 5 increases current output to the electromagnetic coil 26, increases the magnetic field intensity, so as to continuously clamp the mobile phone, when the retracting distance is larger than B, it is determined that the user needs to take out the mobile phone, the electromagnetic coil 26 outputs reverse current, the polarity of the electromagnetic slider 24 is switched, when the first valve shaft 21 is in the initial position, so that the electromagnetic magnet 24 is pushed out of the mobile phone by the electromagnetic shaft, and the electromagnetic coil 24 is continuously attracted by the electromagnetic shaft, and the electromagnetic coil 24 is placed in the reset condition, and the reset condition is further, and the electromagnetic coil is kept out by the electromagnetic shaft 25. The retraction distance B may be set according to the requirement for the second distance sensing device 8.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic clamping wireless charger is characterized by comprising a clamping mechanism (2), a front shell assembly (3), a peripheral bracket (1) provided with a first assembly opening (13) and a main board (5); the clamping mechanism (2) comprises an electromagnetic driving assembly and a first sliding block (21); the electromagnetic driving assembly is fixed with the first sliding block (21); the front shell component (3) is arranged in the peripheral bracket (1); the main board (5) is fixed on the front shell component (3); the clamping mechanism (2) is arranged at the first assembly opening part (13) and is fixed with the peripheral bracket (1); the first sliding block (21) is arranged at the top of the front shell component (3) in a sliding way after being inserted into the first assembly opening part (13); the electromagnetic driving assembly is electrically connected with the main board (5).

2. The self-clamping wireless charger of claim 1 wherein said electromagnetic drive assembly includes an ejector magnet (25), an electromagnetic coil (26) and an electromagnetic valve shaft (24) mated with said electromagnetic coil (26); the clamping mechanism further comprises a base (22); the electromagnetic coil (26) is fixed with the base (22); the ejection magnet (25) is fixed at one end of the electromagnetic coil (26); the electromagnetic valve shaft (24) is arranged in the electromagnetic coil (26) in a sliding way; the first sliding block (21) is fixed with one end of the electromagnetic valve shaft (24); the electromagnetic coil (26) is electrically connected with the main board (5).

3. The self-clamping wireless charger of claim 2, wherein the electromagnetic drive assembly further comprises a return magnet (27); the return magnet (27) and the electromagnetic coil (26) are coaxially arranged; the return magnet (27) is fixed with the base (22).

4. A self-clamping wireless charger according to claim 3, characterized in that the clamping mechanism (2) further comprises a first rail (23); the first guide rail (23) is fixed in the base (22); the bottom of the first sliding block (21) is provided with a guide groove matched with the first guide rail (23).

5. The self-clamping wireless charger according to claim 2, characterized in that the peripheral support (1) comprises a first side wall (14), a second side wall (15), a third side wall (16) and a fourth side wall (17); the first side wall (14), the second side wall (15), the third side wall (16) and the fourth side wall (17) are connected end to form a rectangular frame; the front shell component (3) is clamped in the peripheral support (1) and is enclosed with the peripheral support (1) to form a placing groove.

6. The self-clamping wireless charger according to claim 5, characterized in that said first fitting opening (13) is provided on said first side wall (14); the first assembly opening part (13) is communicated with the placing groove; the base (22) is arranged at the first assembly opening part (13) and is connected with the peripheral bracket (1).

7. The self-clamping wireless charger according to claim 1, further comprising a first distance sensing means (7); the top of the front shell component (3) is provided with a first mounting hole matched with the first distance sensing device (7); the first distance sensing device (7) is assembled at the first mounting hole; the first distance sensing device (7) is electrically connected with the main board (5).

8. The self-clamping wireless charger according to claim 7, wherein the clamping mechanism (2) further comprises a second distance sensing means (8); the second distance sensing device (8) is electrically connected with the main board (5).

9. The self-clamping wireless charger of claim 2, wherein the end of the first slider (21) remote from the base (22) is V-shaped.

10. The self-clamping wireless charger of claim 9, further comprising a coil assembly (6) and a lifting assembly (4); the coil component (6) is connected with the lifting component (4); the coil component (6) and the lifting component (4) are electrically connected with the main board (5).

11. The self-clamping wireless charger according to claim 10, wherein the lifting assembly (4) comprises an electric lifting rod (41) provided with an actuating end and a fixed end, a second guide rail (42) and a coil support plate (43) provided with a bushing; the second guide rail (42) penetrates through the bushing and is fixed with the front shell assembly (3); the coil assembly (6) is fixed on one side of the coil support plate (43); the execution end is fixed with the other side of the coil supporting plate (43); the fixed end is fixed with the main board (5).

12. The self-clamping wireless charger of claim 5 wherein the top of each of the first (14), second (15), third (16) and fourth (17) side walls extends outwardly to form a rectangular baffle (18) having a hollow interior; two first grooves (12) are symmetrically formed in the top of the rectangular baffle plate (18); both first grooves (12) are communicated with the placing groove.

13. The self-clamping wireless charger of claim 12 wherein the top of the third side wall (16) extends toward the first side wall (14) with a stop (11).

14. An automatic clamping method, characterized by comprising the steps of: