Slidable wireless charging device

Abstract

The utility model discloses a slidable wireless charging device, which comprises a base and a wireless charging unit, and is characterized in that the wireless charging unit converts electric energy into an electromagnetic field for charging an electric appliance; the wireless charging unit is slidably connected to one side of the base; the base and the wireless charging unit are jointly connected with a sliding positioning assembly, the sliding positioning assembly comprises an elastic piece and a limiting piece, and the limiting piece is used for limiting the base and the wireless charging unit to generate relative sliding and not to be separated. When the wireless charging device is used for charging a mobile phone, if the mobile phone of a certain type is placed at the wireless charging unit due to the size problem, the mobile phone can interfere with the interior of a vehicle, and the mobile phone can be positioned at a plurality of different positions relative to the base through the elastic piece. And the wireless charging unit can be pushed to slide, so that the position of the wireless charging unit relative to the base is changed, and the technical problem of interference between the mobile phone and the automotive trim is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless charging, and in particular to a slidable wireless charging device. Background Art

[0002] Wireless charging devices are widely popular among the public because they do not need to be connected to the device to be charged through wires. Wireless charging devices in the prior art are mostly fixed in a certain place. When charging is needed, the device to be charged can be charged with the wireless charging device. For example, the popular mobile phone wireless charger is generally fixed somewhere on the desktop. When the mobile phone needs to be charged, the mobile phone can be placed on the wireless charger to start charging.

[0003] With the continuous advancement of technology and the public's love for wireless charging technology, some vehicles have also begun to be equipped with on-board wireless charging devices for mobile phones. However, because the wireless charging device should be configured in a position that is convenient for the driver to pick up and put, and the interior decoration of the position that is convenient for the driver to pick up and put is relatively numerous, in the existing technology, there are many on-board wireless charging devices that cannot be adapted to most mobile phones; after investigation, it was found that the reason why most mobile phones cannot be adapted is that there are many types of mobile phones on the market, their shapes and sizes are different, and the positions of the wireless charging coils of mobile phones are also different. At the same time, because the interior of the car is relatively complex, the layout of the wireless charging device is greatly restricted. If the mobile phone is forcibly placed in the charging position, it will often interfere with the car interior.

[0004] Therefore, a technical solution is needed to solve the technical problem that the mobile phone may interfere with the car interior when placed in the wireless charging position. Summary of the invention

[0005] The purpose of the present invention is to provide a slidable wireless charging device, aiming to solve the technical problem in the prior art that when a mobile phone is placed on a vehicle-mounted wireless charging device, the mobile phone may interfere with the interior of the vehicle.

[0006] In order to achieve the above-mentioned object, in a first aspect, the technical solution of the present invention provides a slidable wireless charging device, comprising a base and a wireless charging unit, wherein the wireless charging unit is used to charge a mobile electronic device, and is characterized in that: the wireless charging unit is slidably connected to one side of the base;

[0007] A sliding positioning assembly is connected between the base and the wireless charging unit, and the sliding positioning assembly includes an elastic member and a limit member. The limit member is arranged between the wireless charging unit and the base, and the limit member is used to limit the wireless charging unit and the base to be able to slide relative to each other without separating from each other, so that the wireless charging unit can be positioned at multiple different positions relative to the base through the elastic member.

[0008] As one of the preferred schemes, the limiting member includes a slide groove and a slider, one of the slide groove and the slider is arranged on the wireless charging unit, and the other of the slide groove and the slider is arranged on the base, so that the wireless charging unit is slidably connected to one side of the base through the sliding cooperation between the slider and the slide groove, and a groove stopper is arranged in the slide groove to prevent the slider from detaching from the slide groove.

[0009] As one of the preferred schemes, the sliding positioning assembly also includes a spherical connecting groove and a ball connected to the elastic member, one of the spherical connecting groove and the elastic member is arranged on the wireless charging unit, and the other of the spherical connecting groove and the elastic member is arranged on the base, the spherical connecting groove is composed of a plurality of groove units that can fit the outer wall of the ball and are combined along a first direction, and the ball is subjected to the elastic force of the elastic member and maintains an abutment state with one of the groove units; when the wireless charging unit is subjected to the thrust in the first direction and generates movement, the ball abuts against each groove unit in turn, and the ball can cause the elastic member to compress and stretch periodically.

[0010] As one of the preferred schemes, the base includes a base, a control panel, and a seat cover arranged in sequence, the control panel is located in a accommodating space surrounded by the base and the seat cover, the seat cover is provided with an inner wire groove, the wireless charging unit and the control panel are commonly connected with a wire, and the wire runs through the inner wire groove.

[0011] As one of the preferred solutions, the base is provided with an external wire groove, and the control panel is provided with a wire connected to an external power source through the external wire groove.

[0012] As one of the preferred solutions, the slide groove is a first slide groove arranged on the base or the wireless charging unit, first spherical connecting grooves are symmetrically arranged on both sides of the first slide groove, and a first groove stopper is arranged at the first slide groove to prevent the slider from detaching.

[0013] As one of the preferred solutions, the sliding positioning assembly also includes a clearance groove arranged on the wireless charging unit or the base and used to accommodate the elastic member, one end of the elastic member abuts against the inner wall of the clearance groove, and the other end thereof abuts against the ball.

[0014] As one of the preferred schemes, the sliding positioning assembly also includes a spherical connecting groove and a ball connected to an elastic member, the elastic member is arranged on the slider, the limiting member also includes a sliding limiting plate, the sliding limiting plate includes a second plate body and a third plate body combined with each other, the sliding groove is a second sliding groove arranged on the second plate body, and the second sliding groove is provided with a second groove stopper for preventing the slider from disengaging, the spherical connecting groove is a second spherical connecting groove arranged on the third plate body, the spherical connecting groove is composed of a plurality of groove units that can fit the outer wall of the ball along a first direction, and the ball is subjected to the elastic force of the elastic member and maintains an abutment state with one of the groove units; when the wireless charging unit is subjected to the thrust in the first direction and generates a sliding motion, the ball abuts against each groove unit in turn, and the ball can cause the elastic member to compress and extend periodically.

[0015] As one of the preferred solutions, the slider is provided with a block inner groove for accommodating an elastic member, one end of the elastic member abuts against the inner wall of the block inner groove, and the other end thereof abuts against the ball.

[0016] As one of the preferred solutions, the sliding block includes a block body and a baffle plate arranged on the side of the block body, so that the baffle plate abuts against the slot stopper to limit the sliding block from being separated from the sliding slot.

[0017] It can be seen from the above technical solution that when the wireless charging device of the present invention is used to charge a mobile phone, if a certain mobile phone will interfere with the vehicle interior when placed on the wireless charging unit due to size issues, the wireless charging unit can be pushed to slide, thereby changing the position of the wireless charging unit relative to the base, thereby avoiding the technical problem of interference between the above mobile phone and the car interior.

[0018] In addition, the present invention is provided with a ball and a spherical connecting groove. When the wireless charging unit is pushed and the ball abuts against the side wall of the groove unit, the abutting force between the two has a component force along the direction of the elastic member, so that the elastic member is compressed until the ball passes the middle position of the two groove units and abuts against the next groove unit. At this time, the elasticity of the elastic member causes it to naturally stretch and push the ball to abut against the groove unit. The elastic force of the elastic member can prevent the ball from moving relative to the groove unit when there is no external force, that is, the wireless charging unit maintains a relatively stable positional relationship with the base when not subject to thrust, avoiding the accidental sliding of the wireless charging unit caused by slight shaking of the vehicle during driving.

[0019] In order to make the technical concept and other purposes, advantages, features and functions of the present invention more clearly understood, preferred embodiments will be specifically cited in the following specific implementation manner and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a schematic diagram of a vehicle-mounted magnetic wireless charger provided in an embodiment of the present application;

[0022] Figure 2 It is an exploded schematic diagram of an on-vehicle magnetic wireless charger according to an implementation method provided in an embodiment of the present application;

[0023] Figure 3 It is an exploded schematic diagram of another perspective of an on-vehicle magnetic wireless charger according to an implementation method provided in an embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of a sliding limit plate in an implementation method provided in an embodiment of the present application;

[0025] Figure 5 It is a structural schematic diagram of a slider in an implementation method provided in an embodiment of the present application;

[0026] Figure 6 It is an exploded schematic diagram of another implementation method of a vehicle-mounted magnetic wireless charger provided in an embodiment of the present application;

[0027] Figure 7 This is an exploded schematic diagram of another perspective of a vehicle-mounted magnetic wireless charger providing another implementation method according to an embodiment of the present application.

[0028] Figure 8 is a structural schematic diagram of a sliding limit plate in another implementation method provided in an embodiment of the present application;

[0029] Fig. 9 is an exploded schematic diagram of a base in an implementation method provided in an embodiment of the present application;

[0030] Fig.10 It is an exploded schematic diagram of another implementation method of a vehicle-mounted magnetic wireless charger provided in an embodiment of the present application.

[0031] Among them, the above-mentioned drawings include the following drawing marks: 1. base; 101. base; 102. control panel; 103. seat cover; 104. external wire groove; 2. wireless charging unit; 3. top cover; 4. sliding limit plate; 401. first plate body; 402. first slot stop; 403. first slide groove; 404. first spherical connecting groove; 405. second plate body; 406. third plate body; 407. first clamping plate; 408. second clamping plate; 409. second spherical connecting groove; 5. slider; 501. block; 502. baffle; 503. inner groove of block; 6. ball; 7. compression spring; 8. give way groove; 9. inner wire groove. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0033] See also Figure 1 The present embodiment provides a slidable wireless charging device, comprising a base 1 and a wireless charging unit 2. A top cover 3 is provided on the upper portion of the wireless charging unit 2. The top cover 3 protects the wireless charging unit 2. The wireless charging unit 2 is used to charge a mobile electronic device. The wireless charging unit 2 converts electrical energy into an electromagnetic field for charging the mobile electronic device. The mobile electronic device may be a mobile phone. The wireless charging unit 2 is slidably connected to one side of the base 1.

[0034] The base 1 and the wireless charging unit 2 are connected together with a sliding positioning assembly, which includes an elastic member and a limiter. The limiter is arranged between the base 1 and the wireless charging unit 2, and the limiter is used to limit the base 1 and the wireless charging unit 2 to slide relative to each other without being separated from each other. The elastic member is connected to the base 1 and is used to keep the base 1 and the wireless charging unit 2 in one of the relative positions without accidental relative sliding, so that the wireless charging unit 2 can be positioned at multiple different positions relative to the base 1 through the elastic member. The base 1 in this embodiment is installed on the interior of the vehicle. When using the wireless charging device of this embodiment, the mobile phone can be placed on the wireless charging unit 2 to start charging; the sliding positioning assembly in this embodiment allows the wireless charging unit to slide relative to the base 1, so that the mobile phone can better cooperate with the wireless charging unit 2 to achieve charging.

[0035] When a certain mobile phone interferes with the vehicle interior when placed on the wireless charging unit 2 due to size issues, the wireless charging unit 2 can be pushed to slide, thereby changing the position of the wireless charging unit 2 relative to the base 1 (that is, relative to the car interior), thereby avoiding the technical problem of interference between the mobile phone and the car interior.

[0036] Specifically, the limiting member includes a sliding limiting plate 4 and a sliding block 5. The sliding limiting plate 4 is arranged on the wireless charging unit 2. A sliding groove is arranged on the sliding limiting plate 4. The sliding block 5 is fixed to the base 1 and is slidably connected in the sliding groove. A groove stopper is arranged in the sliding groove to prevent the sliding block 5 from being separated from the sliding groove.

[0037] Reference Figure 2 , Attachment Figure 3 , Attachment Figure 4 The sliding positioning assembly also includes a ball 6 fixedly connected to the elastic member, and a spherical connecting groove is provided on the limiting member. The spherical connecting groove is composed of a plurality of groove units that can fit the outer wall of the ball 6 along the first direction. The ball 6 is subjected to the elastic force of the elastic member and maintains abutment with one of the groove units. In this way, the ball 6 can be subjected to the elastic force of the elastic member and abut in different groove units, so that the wireless charging unit 2 can be positioned at multiple different positions relative to the base 1; when the wireless charging unit 2 is pushed in the first direction and moves, the ball 6 passes over the groove unit currently abutting and abuts with the next groove unit, and repeats the action and abuts with each groove unit in turn. In this process, the ball 6 compresses and stretches the elastic member periodically. It is further explained that when the wireless charging unit 2 is pushed to move, the contact surface between the ball 6 and the original groove unit gradually decreases and compresses the elastic member until the ball 6 moves to leave the original groove unit, and the elastic member stretches and pushes the ball 6 to abut with another groove unit.

[0038] It is particularly noted that since the outer wall of the ball 6 is a spherical structure, when the wireless charging unit 2 is pushed to make the ball 6 abut against the side wall of the groove unit, the abutment force between the two has a component along the direction of the elastic member, thereby compressing the elastic member until the ball 6 passes the middle position of the two groove units and abuts against the next groove unit. At this time, the elasticity of the elastic member causes it to naturally stretch and push the ball 6 to abut against the groove unit.

[0039] As mentioned above, the ball 6 maintains a good abutment with one of the groove units under the action of the elastic member; when there is no external force, the elastic force of the elastic member can prevent the ball 6 from moving relative to the groove unit, so that the wireless charging unit 2 maintains a relatively stable position relationship with the base 1 when not subjected to thrust, thereby preventing the wireless charging unit 2 from moving due to slight shaking of the vehicle during driving.

[0040] It is further explained that the elastic force generated by the elastic member on the ball 6 has a tendency to move the wireless charging unit 2 away from the base 1, but a limit member is provided in this embodiment, which limits the wireless charging unit 2 to only be able to slide horizontally relative to the base 1, that is, the wireless charging unit 2 can only move relative to the base 1 along the first direction, thereby preventing the wireless charging unit 2 from detaching from the base 1.

[0041] Reference Fig. 9 The base 1 of this embodiment includes a base 101, a control board 102, and a seat cover 103 arranged in sequence. The control board 102 is located in the accommodating space surrounded by the base 101 and the seat cover 103. The seat cover 103 is provided with an inner wire groove 9. The wireless charging unit 2 and the control board 102 are commonly connected with a wire, and the wire runs through the inner wire groove 9. The wireless charging unit 2 and the control board 102 cooperate to realize the basic function of wireless charging. The wire running through the inner wire groove 9 is used to supply power to the wireless charging unit 2. The above-mentioned wireless charging unit 2 and the control board 102 are conventional technical means that should be known to those skilled in the art, and will not be described in detail here.

[0042] Again, refer to the attached Fig. 9 The base 101 is provided with an external wire groove 104, and the control board 102 is provided with a wire connected to an external power source through the external wire groove 104, so as to conduct the electric energy of the vehicle power supply to the control board 102 of the wireless charging device of this embodiment.

[0043] Reference Figure 4 , Attachment Figure 5 In an optional embodiment of the present application, the sliding limit plate 4 includes a first plate body 401, and the slide groove is a first slide groove 403 arranged in the middle of the first plate body 401. The slider 5 is slidably connected to the first slide groove 403 to limit the wireless charging unit 2 to slide only along the first slide groove 403. A first groove stopper 402 for preventing the slider 5 from disengaging is arranged at the first slide groove 403. The slider 5 includes a block body 501 and a baffle 502 arranged on the side of the block body 501. The baffle 502 cooperates with the first groove stopper 402 to prevent the slider 5 from disengaging from the first slide groove 403. Specifically: the baffle 502 is located on the upper side of the first groove stopper 402, that is, the baffle 502 abuts against the upper wall of the first groove stopper 402 to prevent the slider 5 from disengaging from the first slide groove 403; first spherical connecting grooves 404 are symmetrically arranged on both sides of the first slide groove 403, such as Figure 2 , Figure 3 , Figure 4 As shown, in this embodiment, two spherical connecting grooves are provided and are respectively located on both sides of the first sliding groove 403. Each first spherical connecting groove 404 corresponds to two balls 6 and an elastic member.

[0044] Reference Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5In an optional embodiment of the present application, a recess 8 for accommodating an elastic member is provided on the upper wall of the base 1, and both ends of the elastic member are always located inside the recess 8. When the wireless charging unit 2 moves horizontally relative to the base 1, the ball 6 will be subjected to a horizontal force, and a part of the force is inevitably transmitted to the elastic member. In this embodiment, both ends of the elastic member are always located inside the recess 8, which can produce a lateral support effect on the elastic member, thereby preventing the elastic member from bending and failing to always exert effective elastic force on the ball 6.

[0045] Please refer to the attached Fig.10 In an optional embodiment of the present application, Fig.10 The embodiment shown and the attached Figure 2 The main difference compared to the embodiment shown is that the attached Fig.10 In the embodiment shown, the yield groove 8 and the elastic member are both arranged on the sliding limit plate 4 of the wireless charging unit 2, and the first spherical connecting groove 404 is arranged on the base 1. It can be seen that in actual production and use, the installation positions of the elastic member and the spherical connecting groove 404 can be interchanged to achieve corresponding functions and effects. Therefore, without paying creative labor, any simple position exchange of the installation positions of the elastic member and the spherical connecting groove 404 is within the protection scope of the present utility model.

[0046] Reference Figure 6 , Attachment Figure 7 , Attachment Figure 8 , different from the previous embodiment, the sliding limit plate 4 of this embodiment includes a second plate body 405 and a third plate body 406 combined with each other, the slide groove is a second slide groove arranged in the middle of the second plate body 405, and a second groove stopper for preventing the slider 5 from disengaging is arranged at the second slide groove. The slider 5 in this embodiment also includes a block body 501 and a baffle plate 502 arranged on the side of the block body 501. The slider 5 is slidably connected to the second slide groove, and the upper wall of the second groove stopper abuts against the lower wall of the baffle plate 502, so that the slider 5 disengages from the second slide groove. The spherical connecting groove in this embodiment is a second spherical connecting groove 409 arranged on the third plate body 406, and the ball 6 is connected to the slider 5.

[0047] In this embodiment, a block inner groove 503 for accommodating an elastic member is provided on the slider 5, and both ends of the elastic member are always located inside the block inner groove 503. The elastic member is always located in the block inner groove 503, which can produce a lateral support effect on the elastic member, thereby preventing the elastic member from bending when the wireless charging unit moves and failing to always exert effective elastic force on the ball 6.

[0048] Reference Figure 2 , Attachment Figure 6 , Attachment Figure 7In the above embodiment, the elastic member is a compression spring 7, which is used to generate an elastic force on the ball 6 pointing in the direction of the charging element. In other embodiments, the elastic member can also be made of other components that can generate elastic force, such as rubber products. Those skilled in the art can select other types of elastic products and apply them to the above embodiments without creative labor, and they should all be included in the protection scope of this application.

[0049] Reference Figure 6 , Attachment Figure 7 , Attachment Figure 8 In the above embodiment, a first retaining plate 407 is fixed to one side of the second plate 405, and a second retaining plate 408 is fixed to one side of the third plate 406. The first retaining plate 407 and the second retaining plate 408 abut against each other to limit the relative position of the second plate 405 and the third plate 406 to avoid relative rotation when the two are combined together.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0052] It should be noted that, in the description of the present application, unless otherwise clearly specified and limited, the terms "set, connect, connect, install" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0053] In addition, it should be noted that in the description of the present invention, the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. In the description of the present invention, unless otherwise stated, the meaning of "multiple" refers to two or more.

[0054] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A slidable wireless charging device, comprising a base (1) and a wireless charging unit (2), wherein the wireless charging unit (2) is used to charge a mobile electronic device, and is characterized in that: The wireless charging unit (2) is slidably connected to one side of the base (1); A sliding positioning assembly is connected between the base (1) and the wireless charging unit (2), and the sliding positioning assembly comprises an elastic member and a limiting member. The limiting member is arranged between the wireless charging unit (2) and the base (1), and the limiting member is used to limit the wireless charging unit (2) and the base (1) to slide relative to each other without separating from each other, so that the wireless charging unit (2) can be positioned at a plurality of different positions relative to the base (1) through the elastic member.

2. A slidable wireless charging device according to claim 1, characterized in that: The limiting member comprises a slide groove and a slider (5), one of the slide groove and the slider (5) being arranged on the wireless charging unit (2), and the other of the slide groove and the slider (5) being arranged on the base (1), so that the wireless charging unit (2) is slidably connected to one side of the base (1) through the sliding cooperation between the slider (5) and the slide groove, and a groove stopper is arranged in the slide groove to prevent the slider (5) from being separated from the slide groove.

3. The slidable wireless charging device according to claim 1, characterized in that: The sliding positioning assembly also includes a spherical connecting groove and a ball (6) connected to the elastic member, one of the spherical connecting groove and the elastic member is arranged on the wireless charging unit (2), and the other of the spherical connecting groove and the elastic member is arranged on the base (1), the spherical connecting groove is composed of a plurality of groove units that can fit the outer wall of the ball (6) and are combined along a first direction, the ball (6) is subjected to the elastic force of the elastic member and maintains an abutment state with one of the groove units; when the wireless charging unit is subjected to the thrust in the first direction and generates movement, the ball (6) abuts against each groove unit in turn, and the ball (6) can cause the elastic member to compress and stretch periodically.

4. The slidable wireless charging device according to claim 1, characterized in that: The base (1) comprises a base (101), a control panel (102), and a seat cover (103) which are arranged in sequence; the control panel (102) is located in a receiving space enclosed by the base (101) and the seat cover (103); the seat cover (103) is provided with an inner wire groove (9); the wireless charging unit (2) and the control panel (102) are commonly connected by a wire, and the wire passes through the inner wire groove (9).

5. A slidable wireless charging device according to claim 4, characterized in that: The base (101) is provided with an external wire groove (104), and the control panel (102) is provided with a wire connected to an external power source via the external wire groove (104).

6. The slidable wireless charging device according to claim 2, characterized in that: The slide groove is a first slide groove (403) arranged on the base (1) or the wireless charging unit (2), first spherical connecting grooves (404) are symmetrically arranged on both sides of the first slide groove (403), and a first groove stopper (402) for preventing the slider (5) from detaching is arranged at the first slide groove (403).

7. The slidable wireless charging device according to claim 3, characterized in that: The sliding positioning assembly also includes a clearance groove (8) arranged on the wireless charging unit (2) or the base (1) and used to accommodate the elastic member, one end of the elastic member abuts against the inner wall of the clearance groove (8), and the other end of the elastic member abuts against the ball (6).

8. The slidable wireless charging device according to claim 2, characterized in that: The sliding positioning assembly also includes a spherical connecting groove and a ball (6) connected to the elastic member, the elastic member is arranged on the slider (5), the limiting member also includes a sliding limiting plate (4), the sliding limiting plate (4) includes a second plate body (405) and a third plate body (406) which are combined with each other, the sliding groove is a second sliding groove arranged on the second plate body (405), and a second groove stopper for preventing the slider (5) from escaping is arranged at the second sliding groove, the spherical connecting groove is a second spherical connecting groove (409) arranged on the third plate body (406), and the spherical connecting groove is composed of a plurality of groove units that can fit the outer wall of the ball (6) and are combined along a first direction, and the ball (6) is subjected to the elastic force of the elastic member and maintains an abutting state with one of the groove units; when the wireless charging unit is subjected to the thrust in the first direction and generates sliding motion, the ball (6) abuts against each groove unit in turn, and the ball (6) can cause the elastic member to compress and extend periodically.

9. A slidable wireless charging device according to claim 8, characterized in that: The slider (5) is provided with a block inner groove (503) for accommodating an elastic member, one end of the elastic member abuts against the inner wall of the block inner groove (503), and the other end thereof abuts against the ball (6).

10. The slidable wireless charging device according to claim 2, characterized in that: The slider (5) comprises a block body (501) and a baffle (502) arranged on the side of the block body (501), so that the baffle (502) abuts against the slot stopper to limit the slider (5) from being separated from the slide slot.

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