CN214069670U - Wireless charging device - Google Patents

Abstract

The utility model provides a wireless charging device, which comprises a main body, and a data line, a circuit board, a spiral coil and a rotating structure which are arranged in the main body, wherein the spiral coil and the rotating structure are respectively fixedly connected with the two sides of the circuit board; the data line is accommodated between the rotating structure and the circuit board and is connected with the rotating structure and the circuit board, wherein the data line is electrically connected with the circuit board; the main body is provided with an opening, and one end of the data line extends out of the main body from the opening. The rotating structure drives the circuit board and the spiral coil to move when rotating so as to ensure the stability of current communication. The plurality of magnets are distributed along the ring shape around the edge of the spiral coil, so that the corresponding spiral coil between the wireless charging device and the charged part can be aligned quickly and accurately, and accurate and stable energy transmission is further realized. Set up locating part and first elastic component and mutually support, control revolution mechanic's rotation. Set up on the carousel with locating part complex track in order to realize adjusting the tensile length of data line.

Description

Wireless charging device

Technical Field

The utility model relates to an electronic equipment technical field especially relates to a wireless charging device.

Background

With the rise of intelligent products and the increase of functions, the intelligent products become necessities for high-frequency use in daily life, and the use of wireless chargers is more and more common. The basic structure of the wireless charger comprises a charger main body and a data line, wherein one end of the data line is fixedly connected with the charger main body, and the other end of the data line is connected with a power supply for use. Therefore, in order to meet the requirement of long-distance use, the data line of the charger is often designed to be long. This makes the data line of wireless charger twine easily, buckles, damages the metal conductor in the data line easily, reduces life, and the data line is mixed and disorderly when accomodating, and is inconvenient to carry.

Moreover, when the wireless charging device is used for charging the intelligent product, the length of the data line cannot be selected according to needs, and further troubles are brought to the use. For example, when people connect the wireless charger to the power bank in the environment such as public transport and subway, the long data line is very burdensome, and is easy to wind and hang other objects.

The charger with the function of stretching and retracting the data line in the prior art is used for solving the problems that the data line is easy to wind and damages a metal conductor in the data line, and the data line is collected into a storage box through the storage box with a rotating mechanism so as to be convenient to store and carry. However, the two sides of the charger need to be butted through the rotating mechanism, and the contact effect of the two objects in relative movement is poor, which causes poor current transmission stability of the data line and affects normal use.

In order to stabilize the electrical connection of the data line, there is a prior art that the circuit board is divided into a fixed portion and a rotating portion to be respectively connected with the fixed end and the moving end of the data line, the fixed portion is provided with a conductive track, and the rotating portion can be provided with a conductive elastic sheet which is always in contact with the conductive track so as to keep the two ends of the data line stably electrically connected. The connecting structure has the advantages that the circuit board is complex in structure, troublesome to manufacture and high in production cost, the conductive elastic sheet structure is tiny and easy to damage, and the problem of unstable current transmission still can be caused after the conductive elastic sheet structure is used for a period of time.

To sum up, the existing wireless charger has the defects that the data wire is easy to wind and bend, the metal conductor in the data wire is damaged, and the length of the data wire cannot be selected according to the use requirement. And the charger with the telescopic data line storage function, which can solve the problem of data line winding, can not ensure the stability of current transmission when in use.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to overcome the defects of the prior art, the utility model provides a simple structure, current transmission are stable and can adjust the wireless charging device of the tensile length of data line.

Specifically, the wireless charging device comprises a main body and a data line, wherein the data line is accommodated in the main body, a circuit board, a spiral coil and a rotating structure are further arranged in the main body, and two sides of the circuit board are respectively and fixedly connected with the spiral coil and the rotating structure; the data line is accommodated between the rotating structure and the circuit board and comprises a metal conductor and a wrapping structure, wherein the metal conductor is electrically connected with the circuit board, and the wrapping structure is connected with the rotating structure; an opening is formed in the main body, and one end of the data line extends out of the main body from the opening. The wireless charging device is simple in structure, and the circuit board and the spiral coil rotate along with the rotating structure to ensure the stability of current communication.

Specifically, the main body comprises a first shell and a second shell, wherein a first connecting piece and a first positioning column are arranged on one side, facing the second shell, of the first shell, and a second connecting piece and a second positioning column are arranged on one side, facing the first shell, of the second shell; the first connecting piece and the second connecting piece correspond in position and are connected with the first shell and the second shell to form an accommodating space; the first positioning column corresponds to the second positioning column in position, and the rotating structure rotates by taking the first positioning column and/or the second positioning column as an axis.

Further, a plurality of magnets are arranged and distributed annularly around the spiral coil. Through magnet carries out magnetic force and adsorbs, makes wireless charging device and by the alignment that corresponding spiral coil can be quick accurate between the charging member, reduces the relative displacement when charging, reduces because the probability that electromagnetic coupling that vibrations or external force etc. produced was interrupted, further realizes accurate, stable energy transmission, improves electromagnetic coupling's energy transmission's efficiency, reduces the heat loss in the transmission course, promotes user experience. Preferably, the magnets have the same polarity on a side facing the first housing. The processing mode of magnetizing after the assembly is completed can be adopted, the assembly steps are simplified, and the assembly efficiency is improved. Optionally, a space is arranged between two adjacent magnets; or two adjacent magnets are abutted.

In some embodiments, a side of the second housing facing away from the first housing is provided with a first groove, and the first groove is recessed from the second housing toward the first housing; a first through hole is formed in the middle of the first groove, a limiting part and a first elastic part are respectively arranged on two sides of the first through hole, one end of the limiting part is rotatably connected with the second shell, and the other end of the limiting part penetrates through the first through hole to be in contact with the rotating structure; one end of the first elastic piece is fixedly connected with the second shell, and the other end of the first elastic piece covers the first through hole and contacts the limiting piece. The limiting part can swing along with the movement of the rotating structure, and the first elastic part can buffer the range of up-and-down swing when the limiting part swings, so that the abrasion to the rotating structure is reduced. Furthermore, the first elastic part is always in contact with the limiting part, so that the stability of the limiting part on the rotation control of the door rotating structure on the lock is ensured.

In some embodiments, a cover plate is arranged on one side of the second shell, which faces away from the first shell, and covers the first groove. The cover plate can position the limiting part to prevent the limiting part from falling off, and can also play a role in preventing sundries from entering the wireless charging device through the first through hole to damage the internal structure of the device.

Further, the rotating structure is provided with a second groove, a first protrusion and a second protrusion, a first rail is arranged on one side of the first protrusion, which is close to one end of the second protrusion fork and is close to the second groove, and a second rail is arranged on one side of the first protrusion and the second protrusion, which is far away from the second groove; a first communicating track is arranged on one side, close to the non-forked end of the second protrusion and close to the second groove, of the first protrusion, and the first communicating track is communicated with the first track and the second track; the protruding forked one end of second just keeps away from one side of second recess is provided with second intercommunication track, the protruding forked one end of second just is close to one side of second recess is provided with third intercommunication track, the second track is successively through second intercommunication track with third intercommunication track intercommunication first track. The track and the limiting piece are matched with each other, so that the data line can realize stretching, positioning and contraction movement.

The first track is higher than the first communicating track, the first communicating track is higher than the second track, the second track is higher than the second communicating track, the second communicating track is higher than the third communicating track, and the third communicating track is higher than the first track. The height of each track is gradually increased and decreased for transition, so that the adaptability of the limiting part is enhanced, the abrasion degree of the limiting part is reduced in the sliding process, and the accuracy and the stability of limiting are ensured.

Specifically, revolution mechanic includes carousel, second elastic component and setting element, the carousel orientation one side of second casing is provided with to the sunken second recess of first casing direction, be provided with the second elastic component in the second recess, the second elastic component is helical structure, fixed connection the carousel, the setting element lid fits the second recess. The second elastic piece provides elastic force opposite to the rotating direction when the turntable rotates relative to the second shell, and the elastic restoring force of the second elastic piece enables the rotating structure to drive the data line to extend out under the action of external force to provide contracted elastic force.

Based on the above, the utility model provides a wireless charging device, revolution mechanic and circuit board, helical coil are connected, can drive the stability of circuit board and helical coil motion in order to guarantee the electric current intercommunication when revolution mechanic rotates. Compared with the prior art, the circuit board has the advantages of simple structure and low manufacturing cost. The plurality of magnets are distributed along the ring shape around the edge of the spiral coil, so that the corresponding spiral coil between the wireless charging device and the charged part can be aligned quickly and accurately, and accurate and stable energy transmission is further realized. The limiting part is arranged to be matched with the first elastic part, the limiting part can swing along with the movement of the rotating structure, the first elastic part can buffer the range of up-down swing when the limiting part swings, and abrasion to the rotating structure is reduced. Furthermore, the first elastic piece is always in contact with the limiting piece, so that the stability of the limiting piece on the rotation control of the rotating structure is guaranteed. The turntable is provided with a track matched with the limiting part, so that the data wire can be stretched, positioned and contracted. The track sets up to the surface that just gradually slowly change the transition step by step for the level differs, and the locating part of being convenient for can be more smooth and easy slip, convenient to use on the carousel surface.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the wireless charging device of the present invention;

fig. 2 is an exploded view of the overall structure of the wireless charging device of the present invention;

fig. 3 is an exploded view of the wireless charging device according to another angle of the overall structure of the present invention;

fig. 4 is an exploded view of a second housing part structure of the wireless charging device of the present invention;

fig. 5 is an exploded view of the rotation structure of the wireless charging device of the present invention;

fig. 6 is a schematic structural diagram of another angle of the rotation structure of the wireless charging device of the present invention.

Reference numerals:

1-a body; 11-a first housing; 110-an opening; 111-a first connector; 112-a first positioning column; 12-a second housing; 120-a first groove; 121-a second connector; 122-a first via; 123-a stopper; 124-a first elastic member; 125-cover plate; 126-second location column; 2-a data line; 21-a metal conductor; 3-a rotating structure; 31-a turntable; 310-a third via; 32-a second elastic member; 33-a positioning element; 330-a second via; 34-a second groove; 35-raised structures; 361-a first projection; 362-a second projection; 363-a first track; 364-a first communicating track; 365-a second track; 366-a second communication track; 367-third communication track; 4-a circuit board; 5-a helical coil; 50-magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment provides a wireless charging device, wherein a limiting part and a rotating structure connected with a data line are arranged in the device to stretch, position and contract the data line; the circuit board is connected rotating-structure, helical coil and the one end that the data line is located the device inside, and circuit board and helical coil rotate along with rotating-structure in order to guarantee the stability of electric current intercommunication.

Specifically, referring to fig. 1, 2 and 3, the wireless charging device includes a main body 1 and a data line 2, wherein an opening 110 is provided on the main body 1, the data line 2 is accommodated in the main body 1, and one end of the data line extends out of the main body 1 from the opening 110. The main body 1 includes a first housing 11 and a second housing 12, an opening 110 is disposed on the first housing 11, a first connecting member 111 and a first positioning column 112 are disposed on a side of the first housing 11 facing the second housing 12, and a second connecting member 121 and a second positioning column 126 are disposed on a side of the second housing 12 facing the first housing 11. Alternatively, the opening may be provided on the second housing 12, or the openings may be provided on both the first housing 11 and the second housing 12.

The first connector 111 and the second connector 121 correspond to each other in position and connect the first housing 11 and the second housing 12 to form an accommodating space. The first positioning post 112 and the second positioning post 126 correspond in position. Preferably, the first connector 111 and the second connector 121 are respectively disposed at inner edges of the first housing 11 and the second housing 12, and the first positioning column 112 and the second positioning column 126 are respectively disposed at central positions of the first housing 11 and the second housing 12. The first connecting part 111 and the second connecting part 121, and the first positioning column 112 and the second positioning column 126 can be fixedly mounted by connecting methods such as threaded connection, clamping connection, bonding connection or pin connection.

The inside rotating-structure 3, circuit board 4 and spiral coil 5 that still are provided with of main part 1 in this embodiment, rotate structure 3 and include that one side is provided with the bellied carousel of ring form, and data line 2 twines along above-mentioned arch, and circuit board 4 is circular, the arch on the fixed connection carousel. The specific structure of the rotating structure 3 is described in detail later. Specifically, one side of the circuit board 4 facing the first housing 11 is fixedly connected with the spiral coil 5, the other opposite side is connected with the rotating structure 3, the data line 2 is accommodated between the rotating structure 3 and the circuit board 4, the data line 2 comprises a metal conductor 21 and a wrapping structure, and one end of the data line 2 is connected with the rotating structure 3 and the circuit board 4. Wherein, data line 2 is connected with circuit board 4 electricity, and the rotation structure is connected to the parcel structure. Specifically, the electrical connection may be for the metal conductor 21 within the data line 2 to connect to the circuit board 4. When the rotating structure 3 rotates, the circuit board 4 and the spiral coil 5 are driven to rotate together to ensure the stability of current communication. The wireless charging device is aligned with the spiral coil 5 between the charged parts to generate electromagnetic coupling for charging, and the circuit board 4 and the spiral coil 5 are both circular and can rotate along with the rotating structure 3; therefore, compare prior art, the utility model discloses a wireless charging device does not have the unstable problem of the inside current transmission of device, can carry out fixed connection, simple structure, preparation convenience simply between circuit board 4 and the helical coil 5.

Furthermore, through the mode of magnetic force adsorption, corresponding spiral coils between the wireless charging device and the charged component (for example, the charged component can be a mobile phone, an ipad and other intelligent devices) can be aligned quickly and accurately, the relative displacement during charging is reduced, the probability of electromagnetic coupling interruption caused by vibration or external force and the like is reduced, accurate and stable energy transmission is further realized, the efficiency of electromagnetic coupling energy transmission is improved, the heat loss in the transmission process is reduced, and the user experience is improved. In this embodiment, a plurality of magnets 50 are arranged to be distributed annularly around the edge of the helical coil 5. The number of magnets 50 may be designed according to the requirement of magnetic strength, may be a small number of magnets, or may be a compact arrangement. Generally, the larger the number of magnets 50, the better the magnetic attraction fixing effect. In some embodiments, the surface of the magnet 50 facing the first housing 11 has the same polarity, so that the magnet can be magnetized after being assembled, thereby simplifying the assembly steps and improving the assembly efficiency.

Referring to fig. 4 of the specification, a first groove 120 is disposed on a side of the second housing 12 opposite to the first housing 11, the first groove 120 is recessed from the second housing 12 toward the first housing 11, a first through hole 122 is disposed in the middle of the first groove 120, and a limiting member 123 and a first elastic member 124 are disposed on two sides of the first through hole 122. One end of the limiting member 123 is disposed in the first groove 120 and rotatably connected to the second housing 12, and the other end thereof passes through the first through hole 122 and contacts the rotating structure 3. In this embodiment, the position-limiting member 123 is integrally formed, one end of which is annular and is sleeved on the protrusion in the first groove 120, and the other end of which is arc-shaped and passes through the first through hole 122. One end of the first elastic element 124 is disposed in the first groove 120 and on the other side of the first through hole 122, and is connected to the second housing 12, and the other end thereof covers the first through hole 122 and contacts with the limiting element 123. Alternatively, the first elastic member 124 may be connected to the second housing 12 by clipping, screwing, or integrally forming. The cover plate 125 is arranged to cover the first groove 120, the cover plate 125 can position the limiting part 123 to prevent the limiting part 123 from falling off, and the function of preventing sundries from entering the wireless charging device through the first through hole 122 to damage the internal structure of the device can be achieved. In some embodiments, the stopper 123 is prevented from falling off by connecting a blocking piece on the protrusion in the first groove 120. The limiting member 123 can swing along with the movement of the rotating structure 3, and the first elastic member 124 can buffer the range of up-and-down swing of the limiting member 123 during the swing, so as to reduce the wear on the rotating structure 3. Further, the first elastic element 124 is always in contact with the limiting element 123, so that the stability of the limiting element 123 in controlling the rotation of the rotating structure 3 is ensured.

Referring to fig. 5 and 6, the rotating structure 3 includes a rotating disc 31, a second elastic member 32, and a positioning member 33. The central position of the turntable 31 facing to the second housing 12 is provided with a second groove 34 recessed towards the first housing 11, a second elastic member 32 is arranged in the second groove 34, and the second elastic member 32 is of a spiral structure and is fixedly connected with the turntable 31 and can rotate relative to the first positioning column 112. The positioning member 33 covers the second groove 34, and the auxiliary turntable 31 positions the second elastic member 32. The center of the positioning member 33 is provided with a second through hole 330, the center of the rotating disc 31 is provided with a third through hole 310, the third through hole 310 and the second through hole 330 cooperate with each other to provide a connection space for the positioning pillars of the first housing 11 and the second housing 12, and the rotating structure 3 can rotate around the first positioning pillar 112 and/or the second positioning pillar 126. The second elastic element 32 provides an elastic force opposite to the rotation direction when the rotating disc 31 rotates relative to the second housing 12, and the elastic restoring force of the second elastic element 32 causes the rotating structure 3 to provide a contracting elastic force when the data line 2 is extended under the external force. The carousel 31 is provided with the protruding structure 35 that has an open-ended ring shape towards one side of first casing 11, and data line 2 can use third through-hole 310 as the center, twines along the protruding structure 35 outside, and carousel 31 can drive circuit board 4 and helical coil 5 and rotate, makes data line 2 pass through the outside of rolling in protruding structure 35 under the drive of circuit board 4 pivoted.

The turntable 31 is provided with a rail engaged with the stopper 123 on a side facing the second housing 12, and can adjust the stretching length of the data line 2. In this embodiment, a first protrusion 361 and a second protrusion 362 are provided, the first protrusion 361 and the second protrusion 362 are two parts of a circular ring, and one end of the second protrusion 362 has a branch toward two sides of the circular ring. A first track 363 is arranged on one side, close to the second groove 34, of the first protrusion 361 close to the forked end of the second protrusion 361, a first communicating track 364 is arranged on one side, close to the second groove 34, of the first protrusion 361 close to the non-forked end of the second protrusion 362, and a second track 365 is arranged on one sides, far away from the second groove 34, of the first protrusion 361 and the second protrusion 362; a second communicating track 366 is arranged at one branched end of the second projection 362 and at the side far away from the second groove 34, and a third communicating track 367 is arranged at one branched end of the second projection 362 and at the side near the second groove 34. The first rail 363, the second rail 365, the first communicating rail 364, the second communicating rail 366 and the third communicating rail 367 can cooperate with the position limiter 123 to realize the stretching, positioning and contracting motions of the data cable 2.

Specifically, the first track 363 is disposed on the outer peripheral side of the second groove 34, the first track 363 extends to the second track 365 through the first communication track 364, and the second track 365 can be communicated with the first track 363 through the second communication track 366 and the third communication track 367 in sequence. The limiting member 123 can slide on the track surface of the turntable 31, and the limiting member 123 can be stably contacted with the turntable 31 with the aid of the first elastic member 124 to limit the data line 2. It should be noted that, by setting the track of the turntable 31 to be a surface with different levels and gradual and gradual transition, the limiting member 123 can slide more smoothly on the surface of the turntable 31; because the surface height of the turntable 31 is different, the limiting member 123 can make a sound when contacting with the turntable 31, and can be used for prompting that the 2-stretching of the data line is close to the position of the gear, so that the user can conveniently judge and select the stretching degree.

Further, the first track 363 is higher than the first communicating track 364, the first communicating track 364 is higher than the second track 365, the second track 365 is higher than the second communicating track 366, the second communicating track 366 is higher than the third communicating track 367, and the third communicating track 367 is higher than the first track 363. The height of each track of carousel 31 has strengthened locating part 123's adaptability for gradually increasing and decreasing transition, makes it reduce the degree of wear at the slip in-process to guarantee spacing accuracy and stability.

To sum up, the utility model provides a scalable and tensile degree adjustable wireless charging device of data line. The rotating structure is connected with the circuit board and the spiral coil, the rotating structure can drive the circuit board and the spiral coil to move when rotating so as to ensure the stability of current communication, and compared with the prior art, the rotating structure is simple in structure and low in manufacturing cost. Set up a plurality of magnets and distribute along the annular around spiral coil's edge, make wireless charging device and by the quick accurate alignment of corresponding spiral coil between the charging member, further realize accurate, stable energy transmission, improve electromagnetic coupling's energy transmission's efficiency, promote user experience. The limiting part is arranged to be matched with the first elastic part, the limiting part can swing along with the movement of the rotating structure, the first elastic part can buffer the range of up-down swing when the limiting part swings, and abrasion to the rotating structure is reduced. Furthermore, the first elastic piece is always in contact with the limiting piece, so that the stability of the limiting piece on the rotation control of the rotating structure is guaranteed. The track on the carousel cooperates with the locating part, can realize adjusting the tensile length of data line. The track sets up to the surface that just gradually slowly change the transition step by step for the level differs, and the locating part of being convenient for can be more smooth and easy slip, convenient to use on the carousel surface.

The above is only the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and can have different variants besides the above embodiments, and the technical features of the above embodiments can be combined with each other, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A wireless charging device comprises a main body and a data line, wherein the data line is accommodated in the main body,

the circuit board, the spiral coil and the rotating structure are arranged in the main body, and two sides of the circuit board are fixedly connected with the spiral coil and the rotating structure respectively;

the data line is accommodated between the rotating structure and the circuit board and comprises a metal conductor and a wrapping structure, wherein the metal conductor is electrically connected with the circuit board, and the wrapping structure is connected with the rotating structure;

an opening is formed in the main body, and one end of the data line extends out of the main body from the opening.

2. The wireless charging device of claim 1, further comprising a plurality of magnets distributed annularly about the helical coil.

3. The wireless charging device of claim 2, wherein the main body comprises a first housing and a second housing that are engaged with each other, and the magnets have the same polarity on a surface facing the first housing.

4. The wireless charging device according to claim 2 or 3, wherein a space is arranged between two adjacent magnets; or two adjacent magnets are abutted.

5. The wireless charging device according to claim 1 or 2, wherein the main body comprises a first housing and a second housing which are fastened with each other, a first groove is formed in a side of the second housing facing away from the first housing, and the first groove is recessed from the second housing in a direction towards the first housing;

a first through hole is formed in the middle of the first groove, a limiting part and a first elastic part are respectively arranged on two sides of the first through hole, one end of the limiting part is rotatably connected with the second shell, and the other end of the limiting part penetrates through the first through hole to be in contact with the rotating structure;

one end of the first elastic piece is fixedly connected with the second shell, and the other end of the first elastic piece covers the first through hole and contacts the limiting piece.

6. The wireless charging device according to claim 5, wherein the rotating structure is provided with a second groove, a first protrusion and a second protrusion, wherein a first rail is provided on a side of the first protrusion close to one end of the second protrusion branch and close to the second groove, and a second rail is provided on a side of the first protrusion and the second protrusion far from the second groove;

a first communicating track is arranged on one side, close to the non-forked end of the second protrusion and close to the second groove, of the first protrusion, and the first communicating track is communicated with the first track and the second track;

the protruding forked one end of second just keeps away from one side of second recess is provided with second intercommunication track, the protruding forked one end of second just is close to one side of second recess is provided with third intercommunication track, the second track is successively through second intercommunication track with third intercommunication track intercommunication first track.

7. The wireless charging device of claim 6, wherein the first track is higher than the first communicating track, the first communicating track is higher than the second track, the second track is higher than the second communicating track, the second communicating track is higher than the third communicating track, and the third communicating track is higher than the first track.

8. The wireless charging device of claim 5, further comprising a cover plate disposed on a side of the second housing facing away from the first housing, the cover plate covering the first groove.

9. The wireless charging device according to claim 1 or 2, wherein the main body comprises a first housing and a second housing which are fastened with each other, the rotating structure comprises a rotating disc, a second elastic member and a positioning member, a second groove which is recessed towards the first housing is formed in one side of the rotating disc, which faces towards the second housing, a second elastic member is arranged in the second groove, the second elastic member is of a spiral structure and is fixedly connected with the rotating disc, and the positioning member covers the second groove.

10. The wireless charging device according to claim 1 or 2, wherein the main body comprises a first housing and a second housing, a first connecting piece and a first positioning column are arranged on one side of the first housing facing the second housing, and a second connecting piece and a second positioning column are arranged on one side of the second housing facing the first housing;

the first connecting piece and the second connecting piece correspond in position and are connected with the first shell and the second shell to form an accommodating space;

the first positioning column corresponds to the second positioning column in position, and the rotating structure rotates by taking the first positioning column and/or the second positioning column as an axis.

Images