Wireless charging equipment

Abstract

The embodiment of the utility model relates to the technical field of wireless charging, and particularly discloses wireless charging equipment, which comprises a shell, a circuit board and a coil, the shell is provided with an accommodating space; the circuit board is arranged in the accommodating space; the coil is arranged in the containing space, the coil is arranged between the circuit board and the shell in a winding mode layer by layer in the first direction, the coil is electrically connected with the circuit board, and the first direction is the direction perpendicular to the component face of the circuit board. Through the above mode, the coil in the embodiment of the utility model is a superposed coil, namely the coil is superposed in the shell and is vertical to the circuit board, so that the strength of a magnetic field generated by the coil in the vertical direction can be improved, and the charging distance of the wireless charging equipment is further increased; the to-be-charged device does not need to approach the surface of the shell of the wireless charging device as much as possible, so that the flexibility and convenience of the wireless charging device are improved.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology, and in particular to a wireless charging device. Background Technology

[0002] Wireless charging devices are devices that use electromagnetic induction to provide power to electronic devices (such as mobile phones, tablets, or smartwatches).

[0003] With the development of wireless charging devices, different scenarios have different requirements for wireless charging devices. Currently, the coils of wireless charging devices are usually planar coils, that is, coils that are laid flat inside the shell and parallel to the circuit board. However, in the above structure, the magnetic field generated by the planar coil is not strong enough in the vertical direction, resulting in a short charging distance of the wireless charging device. In order to ensure that the device to be charged can be charged normally, the device to be charged must be as close as possible to the surface of the shell of the wireless charging device, which limits the flexibility and convenience of the wireless charging device in use. Utility Model Content

[0004] The main technical problem solved by this utility model embodiment is to provide a wireless charging device that can improve the flexibility and convenience of wireless charging devices.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this utility model embodiment is: to provide a wireless charging device, including a housing, a circuit board and a coil; the housing is provided with a receiving space; the circuit board is disposed in the receiving space; the coil is disposed in the receiving space, and along a first direction, the coil is wound layer by layer between the circuit board and the housing, and the coil is electrically connected to the circuit board, wherein the first direction is a direction perpendicular to the component surface of the circuit board.

[0006] Optionally, the wireless charging device includes a magnetic shielding component disposed between the circuit board and the coil.

[0007] Optionally, the magnetic shielding component includes a first sheet and a second sheet, the first sheet and the second sheet are perpendicularly connected, the second sheet is annular, the first sheet is disposed between the circuit board and the coil, and the coil is disposed around the second sheet.

[0008] Optionally, the wireless charging device includes a first adhesive component disposed between the first sheet and the circuit board, wherein the first adhesive component secures the magnetic shielding component to the circuit board.

[0009] Optionally, the wireless charging device includes a second adhesive component disposed between the first sheet and the coil, the second adhesive component securing the coil to the magnetic shielding component.

[0010] Optionally, the coil includes multiple winding segments, which are stacked along the first direction; the wireless charging device includes multiple third adhesive members, one of which is disposed between any two adjacent winding segments, and the third adhesive member bonds any two adjacent winding segments together.

[0011] Optionally, the housing has a protrusion in the receiving space, the protrusion has a notch, one end of the protrusion abuts against the circuit board along the first direction, the notch of the protrusion and the circuit board enclose a clamping space, and the magnetic shielding member is at least partially received in the clamping space.

[0012] Optionally, there are multiple protrusions, which are spaced apart around the sidewall of the receiving space. Along the first direction, one end of each of the multiple protrusions abuts against the circuit board. A notch of one of the protrusions forms a clamping space with the circuit board. The clamping space is used to receive at least a portion of the magnetic shielding component.

[0013] Optionally, the housing is provided with a post in the receiving space; the circuit board is provided with a socket, and the post is inserted into the socket.

[0014] Optionally, the housing is provided with a screw hole and a through hole, the screw hole being located on the plug, and the screw hole and the through hole being aligned along the first direction; the wireless charging device includes a screw connector, the screw connector passing through the through hole and screwed into the screw hole, the screw connector pressing the circuit board to the plug.

[0015] The beneficial effects of this utility model embodiment are as follows: Unlike existing technologies, this utility model embodiment provides a wireless charging device, including a housing, a circuit board, and a coil. The housing has a receiving space; the circuit board is disposed within the receiving space; the coil is disposed within the receiving space, and along a first direction, the coil is wound layer by layer between the circuit board and the housing. The coil is electrically connected to the circuit board, and the first direction is perpendicular to the component surface of the circuit board. Through this method, the coil in this utility model embodiment is a stacked coil, that is, the coil is stacked inside the housing and perpendicular to the circuit board. This can increase the strength of the magnetic field generated by the coil in the vertical direction, thereby increasing the charging distance of the wireless charging device. This allows the device to be charged to be less close to the surface of the wireless charging device's housing, thus improving the flexibility and convenience of the wireless charging device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this utility model or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of the wireless charging device provided in this embodiment of the utility model;

[0018] Figure 2 This is an exploded view of the overall structure of the wireless charging device provided in this embodiment of the utility model;

[0019] Figure 3 This is a cross-sectional view of the wireless charging device provided in this embodiment of the utility model. Figure 1 ;

[0020] Figure 4 This is a cross-sectional view of the wireless charging device provided in this embodiment of the utility model. Figure 2 ;

[0021] Figure 5 This is a cross-sectional view of the wireless charging device provided in this embodiment of the utility model. Figure 3 ;

[0022] Figure 6 This is a cross-sectional view of the wireless charging device provided in this embodiment of the utility model. Figure 4 .

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Shell, 11. Receiving space, 12. Protrusion, 121. Notch, 13. Clamping space, 14. Insert post, 15. Screw hole, 16. Through hole, 17. Groove, 18. Upper shell, 19. Lower shell, 110. Slot cover;

[0025] 2 circuit boards, 21 sockets;

[0026] 3 coils, 31 winding segments;

[0027] 4. Magnetic shielding component; 41. First sheet body; 42. Second sheet body;

[0028] 5. Screw connectors;

[0029] 100 wireless charging devices;

[0030] X is the first direction. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Wireless charging devices are devices that use electromagnetic induction to provide power to electronic devices (such as mobile phones, tablets, or smartwatches).

[0034] With the development of wireless charging devices, different scenarios have different requirements for wireless charging devices. Currently, the coils of wireless charging devices are usually planar coils, that is, coils that are laid flat inside the shell and parallel to the circuit board. However, in the above structure, the magnetic field generated by the planar coil is not strong enough in the vertical direction, resulting in a short charging distance of the wireless charging device. In order to ensure that the device to be charged can be charged normally, the device to be charged must be as close as possible to the surface of the shell of the wireless charging device, which limits the flexibility and convenience of the wireless charging device in use.

[0035] Therefore, this utility model provides an embodiment of a wireless charging device 100, which can improve the flexibility and convenience of the wireless charging device 100.

[0036] To facilitate the reader's understanding of the concept of this utility model embodiment, the specific structure of the wireless charging device 100 is described below:

[0037] Please see Figures 1 to 3The wireless charging device 100 includes a housing 1, a circuit board 2, and a coil 3. The housing 1 has a receiving space 11. The circuit board 2 is disposed in the receiving space 11. The coil 3 is disposed in the receiving space 11 and is wound layer by layer between the circuit board 2 and the housing 1 along a first direction X. The coil 3 is electrically connected to the circuit board 2. The first direction X is the direction in which the component surface of the circuit board 2 faces the surface of the housing 1, and the first direction X is perpendicular to the component surface of the circuit board 2.

[0038] In this manner, coil 3 is a stacked coil 3, meaning that coil 3 is stacked inside the housing 1 and perpendicular to the circuit board 2. This increases the strength of the magnetic field generated by coil 3 in the vertical direction, thereby increasing the charging distance of the wireless charging device 100. This eliminates the need for the device to be charged to be as close as possible to the surface of the housing 1 of the wireless charging device 100, thus improving the flexibility and convenience of the wireless charging device 100. For example, in this way, the device to be charged does not need to be pressed against the surface of the housing 1 of the wireless charging device 100, nor does it need to be aligned with a specific charging position on the surface of the housing 1 of the wireless charging device 100. Instead, a portion of the area away from the surface of the housing 1 of the wireless charging device 100 constitutes a charging area, and the device to be charged can be placed anywhere within this charging area to achieve charging.

[0039] For the wireless charging device 100 mentioned above, please refer to Figure 2 and Figure 3 The wireless charging device 100 includes a magnetic shielding component 4, which is disposed between the circuit board 2 and the coil 3.

[0040] In this way, the magnetic shielding component 4 is placed between the circuit board 2 and the coil 3, which can reduce the interference between the coil 3 and the circuit board 2, reduce the diffusion of the magnetic field toward irrelevant areas, so as to make the magnetic field more concentrated and improve the wireless charging efficiency.

[0041] In some embodiments, the magnetic shielding member 4 includes a first piece 41 and a second piece 42, the first piece 41 and the second piece 42 are vertically connected, the second piece 42 is annular, the first piece 41 is disposed between the circuit board 2 and the coil 3, and the coil 3 is disposed around the second piece 42, and an annular gap is formed between the coil 3 and the second piece 42.

[0042] In the above manner, the first piece 41 can fix the coil 3, prevent the coil 3 from shifting during use, and play a supporting role. In addition, the first piece 41 can reduce the magnetic field interference between the circuit board 2 and the coil 3, and reduce the magnetic field generated by the coil 3 from spreading in the opposite direction of the first direction X, that is, reduce the magnetic field generated by the coil 3 from spreading towards irrelevant areas, and play an isolation role. The second piece 42 can guide the magnetic field generated by the coil 3 to flow along the first direction X, reduce the magnetic field generated by the coil 3 from spreading in all directions, and play a guiding role.

[0043] For the wireless charging device 100 mentioned above, please refer to Figure 2 and Figure 3 The wireless charging device 100 includes a first adhesive member (not shown), which is disposed between the first sheet 41 and the circuit board 2, and the first adhesive member fixes the magnetic shielding member 4 to the circuit board 2.

[0044] In the above manner, the magnetic shielding component 4 is fixed to the circuit board 2 by adhesive bonding, which can improve the stability of the magnetic shielding component 4, reduce the movement of the magnetic shielding component 4 during use, and ensure that the magnetic shielding component 4 maintains a good isolation effect.

[0045] For the wireless charging device 100 mentioned above, please refer to Figure 2 and Figure 3 The wireless charging device 100 includes a second adhesive member (not shown), which is disposed between the first sheet 41 and the coil 3, and the second adhesive member secures the coil 3 to the magnetic shielding member 4.

[0046] By means of the above method, the coil 3 is fixed to the magnetic shielding component 4 by adhesive bonding, which can improve the stability of the coil 3, reduce the movement of the coil 3 during use, so as to maintain good coupling of the coil 3 and improve the reliability of wireless charging of the wireless charging device 100.

[0047] For the wireless charging device 100 mentioned above, please refer to Figure 2 and Figure 3 The coil 3 includes multiple winding segments 31, which are stacked along the first direction X. The wireless charging device 100 includes multiple third adhesives (not shown), one of which is disposed between any two adjacent winding segments 31, and the third adhesives bond any two adjacent winding segments 31 together.

[0048] In the above manner, the multiple winding segments 31 of the coil 3 are fixed to each other by bonding, which can improve the stability of the multiple winding segments 31 of the coil 3, reduce the deformation of the multiple winding segments 31 of the coil 3 during use, so that the coil 3 can maintain good coupling and further improve the reliability of wireless charging of the wireless charging device 100.

[0049] For the wireless charging device 100 mentioned above, please refer to Figures 2 to 4 The housing 1 has a protrusion 12 in the receiving space 11. The protrusion 12 has a notch 121. Along the first direction X, one end of the protrusion 12 abuts against the circuit board 2. The notch 121 of the protrusion 12 and the circuit board 2 enclose a clamping space 13. The magnetic shielding member 4 is at least partially received in the clamping space 13.

[0050] In this way, the protrusion 12 and the circuit board 2 together clamp the edge of the magnetic shielding component 4, which helps to improve the stability of the magnetic shielding component 4 and reduce the displacement of the magnetic shielding component 4 when subjected to vibration or collision.

[0051] In some embodiments, there are multiple protrusions 12, which are spaced apart around the sidewall of the receiving space 11. Along the first direction X, one end of each of the multiple protrusions 12 abuts against the circuit board 2. A notch 121 of a protrusion 12 forms a clamping space 13 with the circuit board 2. The clamping space 13 is used to receive at least a portion of the magnetic shielding member 4.

[0052] In this manner, the multiple protrusions 12 and the circuit board 2 together clamp the edge of the magnetic shielding component 4, which helps to further improve the stability of the magnetic shielding component 4 and further reduce the displacement of the magnetic shielding component 4 when subjected to vibration or collision.

[0053] For the wireless charging device 100 mentioned above, please refer to Figure 2 Please refer to the following as well. Figure 5 and Figure 6 The housing 1 has a plug 14 in the receiving space 11; the circuit board 2 has a socket 21, and the plug 14 is inserted into the socket 21.

[0054] In the above manner, during the assembly process of circuit board 2, the cooperation between the pin 14 and the socket 21 can play a positioning role, reduce the assembly error of circuit board 2, and improve the assembly efficiency of circuit board 2.

[0055] For the wireless charging device 100 mentioned above, please refer to Figure 2 Please refer to the following as well. Figure 5 and Figure 6 The housing 1 is provided with a screw hole 15 and a through hole 16. The screw hole 15 is located on the plug 14 and the screw hole 15 and the through hole 16 are aligned along the first direction X. The wireless charging device 100 includes a screw connector 5. The screw connector 5 passes through the through hole 16 and is screwed into the screw hole 15. The screw connector 5 presses the circuit board 2 into the plug 14.

[0056] In the above manner, the circuit board 2 is fixed to the housing 1 by screwing, which can improve the stability of the circuit board 2 and reduce the loosening of the circuit board 2 when subjected to vibration or impact.

[0057] Please see Figure 6 In some embodiments, the housing 1 is provided with a groove 17, a through hole 16 is connected to the bottom of the groove 17, and the end of the screw connector 5 that does not penetrate the through hole 16 is received in the groove 17.

[0058] By using the above method, the screw connector 5 can be prevented from being exposed on the surface of the housing 1, thereby preventing the screw connector 5 from being hit and reducing the probability of the screw connector 5 becoming loose.

[0059] Please see Figure 6 In some embodiments, the housing 1 includes an upper housing 18 and a lower housing 19. A screw hole 15 is located in the upper housing 18, and a through hole 16 and a groove 17 are located in the lower housing 19. One end of the screw connector 5 passes through the through hole 16 and is screwed into the screw hole 15. The other end of the screw connector 5 is received in the groove 17. The screw connector 5 connects the upper housing 18 and the lower housing 19.

[0060] In this way, the upper shell 18 and the lower shell 19 can be detachably connected, which facilitates the assembly and disassembly of the shell 1.

[0061] Please see Figure 6 In some embodiments, the housing 1 further includes a groove cover 110, which is inserted into the groove 17 and closes the opening of the groove 17.

[0062] By using the above method, not only can dust or debris be prevented from accumulating in the groove 17 and contacting the screw connector 5, thereby reducing the corrosion of the screw connector 5 by dust or debris and thus reducing the probability of damage to the screw connector 5, but the screw connector 5 can also be prevented from being exposed to air, thereby reducing the corrosion or oxidation of the screw connector 5 by moisture in the air and thus reducing the probability of damage to the screw connector 5.

[0063] For the wireless charging device 100 mentioned above, please refer to Figure 2 and Figure 3 The wireless charging device 100 includes a heat-conducting element (not shown), which is disposed between the side wall of the coil 3 and the side wall of the protrusion 12. One side of the heat-conducting element abuts against the side wall of the coil 3, and the other side of the heat-conducting element abuts against the side wall of the protrusion 12.

[0064] In the above manner, the heat generated by the coil 3 during use is transferred to the protrusion 12 through the heat-conducting component, so that the heat generated by the coil 3 during use is transferred to the housing 1 for dissipation through the heat-conducting component, thereby improving the heat dissipation efficiency of the coil 3.

[0065] In some embodiments, the number of heat-conducting elements and protrusions 12 is the same, that is, the number of heat-conducting elements and protrusions 12 is multiple. Multiple heat-conducting elements are evenly spaced and arranged around each other. A heat-conducting element is disposed between the side wall of the coil 3 and the side wall of a protrusion 12. One side of a heat-conducting element abuts against the side wall of the coil 3, and the other side of a heat-conducting element abuts against the side wall of a protrusion 12.

[0066] In the above manner, the heat generated by the coil 3 during use is transferred to the protrusion 12 through multiple heat-conducting components, so that the heat generated by the coil 3 during use is transferred to the housing 1 for dissipation through multiple heat-conducting components, which can further improve the heat dissipation efficiency of the coil 3.

[0067] In some embodiments, the thermally conductive component is thermally conductive silicone or thermally conductive plastic.

[0068] In this way, the thermally conductive silicone can not only improve the thermal conductivity between the coil 3 and the housing 1, but also fill the gap between the coil 3 and the housing 1, absorb vibration and impact, and reduce the probability of coil 3 deformation.

[0069] This utility model provides a wireless charging device 100, including a housing 1, a circuit board 2, and a coil 3. The housing 1 has a receiving space 11; the circuit board 2 is disposed in the receiving space 11; the coil 3 is disposed in the receiving space 11, and along a first direction X, the coil 3 is wound layer by layer between the circuit board 2 and the housing 1, and the coil 3 is electrically connected to the circuit board 2. In this embodiment, the coil 3 is a stacked coil 3, that is, the coil 3 is stacked inside the housing 1 and perpendicular to the circuit board 2. This increases the strength of the magnetic field generated by the coil 3 in the vertical direction, thereby increasing the charging distance of the wireless charging device 100. This allows the device to be charged to be less close to the surface of the housing 1 of the wireless charging device 100, thus improving the flexibility and convenience of the wireless charging device 100.

[0070] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wireless charging device, comprising: The wireless charging device comprises: a housing provided with a receiving space; a circuit board arranged in the receiving space; a coil arranged in the receiving space, the coil is arranged layer by layer between the circuit board and the housing along a first direction, the coil is electrically connected with the circuit board, and the first direction is perpendicular to the component surface of the circuit board.

2. The wireless charging device according to claim 1, wherein the wireless charging device comprises a magnetic shielding member arranged between the circuit board and the coil.

3. The wireless charging device according to claim 2, wherein the magnetic shielding member comprises a first piece and a second piece, the first piece is connected with the second piece perpendicularly, the second piece is annular, the first piece is arranged between the circuit board and the coil, and the coil is arranged around the second piece.

4. The wireless charging device according to claim 3, wherein the wireless charging device comprises a first adhesive arranged between the first piece and the circuit board, and the first adhesive fixes the magnetic shielding member to the circuit board.

5. The wireless charging device according to claim 3, wherein the wireless charging device comprises a second adhesive arranged between the first piece and the coil, and the second adhesive fixes the coil to the magnetic shielding member.

6. The wireless charging device according to claim 3, wherein the coil comprises a plurality of winding segments, and the plurality of winding segments are stacked along the first direction; the wireless charging device comprises a plurality of third adhesives, one third adhesive is arranged between any two adjacent winding segments, and one third adhesive fixes any two adjacent winding segments to each other.

7. The wireless charging device according to claim 2, wherein the housing is provided with a protrusion in the receiving space, the protrusion is provided with a notch, one end of the protrusion abuts against the circuit board along the first direction, the notch of the protrusion and the circuit board form a clamping space, and the magnetic shielding member is at least partially accommodated in the clamping space.

8. The wireless charging device according to claim 7, wherein the number of the protrusions is a plurality, and the plurality of protrusions are arranged at intervals around the side wall of the receiving space, one end of the plurality of protrusions abuts against the circuit board along the first direction, the notch of one protrusion and the circuit board form one clamping space, and the clamping space is used for accommodating at least part of the magnetic shielding member.

9. The wireless charging device according to any one of claims 1-8, wherein the housing is provided with a plug post in the receiving space; the circuit board is provided with a plug hole, and the plug post is plugged into the plug hole.

10. The wireless charging device according to claim 9, wherein the housing is provided with a threaded hole and a through hole, the threaded hole is located at the plug post, and the threaded hole and the through hole are aligned along the first direction. The wireless charging device comprises a screwing piece which is screwed to the screw hole after penetrating the through hole, and the screwing piece presses and fixes the circuit board to the insertion column.

Images