CN215183487U

CN215183487U - Wireless charging assembly

Info

Publication number: CN215183487U
Application number: CN202121606324.1U
Authority: CN
Inventors: 茆玉龙; 王腾
Original assignee: Omnidirectional Electronics Shenzhen Co ltd
Current assignee: Omnidirectional Electronics Shenzhen Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-12-14
Anticipated expiration: 2031-07-14

Abstract

The utility model provides a wireless subassembly that charges, it includes the casing, accept in magnetic coil subassembly in the casing, for the electric connector that links to each other with external equipment and general the magnetic coil subassembly with electric connector electric connection's cable subassembly, the cable subassembly is in the casing with the magnetic coil subassembly links to each other, the magnetic coil subassembly has the sheetmetal, is located the coil subassembly of sheetmetal upside, be located a plurality of magnets and the lid on the sheetmetal are located insulating part on the coil subassembly, insulating part have the main part and distribute in a plurality of protruding portions of main part outlying, two adjacent protruding portions are followed the circumference direction interval of main part forms a spacing groove of accepting corresponding magnet. The utility model discloses wireless subassembly that charges is through forming protruding portion and spacing groove around the insulating part to effective location magnet guarantees the reliability of wireless charging.

Description

Wireless charging assembly

Technical Field

The utility model relates to a wireless subassembly that charges.

Background

With the rapid development of science and technology in the electronic industry and the improvement of living standard of people, electronic products have become essential articles in people's lives. The technology that the power supply is not electrically connected with the electric appliance, namely the wireless transmission technology, provides much convenience for life and work of people and has higher safety.

The existing wireless transmission device generally converts direct current into alternating current with higher frequency, drives a wireless energy output coil by the alternating current and transmits alternating electromagnetic energy to a wireless charging input coil, and then converts the induced alternating current into direct current. However, in the process of converting direct current into alternating current, a large amount of heat is generated, and electromagnetic interference is serious; meanwhile, the positions of a plurality of magnets of the wireless charging assembly in the shell are difficult to fix, and the displacement is easy to generate.

In view of the above, there is a need for an improved wireless charging assembly to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless subassembly that charges of reliability preferred.

In order to realize the above object, the utility model provides a wireless subassembly that charges, it has the casing, accept in magnetic coil subassembly in the casing, for the electric connector that links to each other with external equipment and general the magnetic coil subassembly with electric connector electric connection's cable subassembly, the cable subassembly is in the casing with the magnetic coil subassembly links to each other, the magnetic coil subassembly has the sheetmetal, is located the coil subassembly of sheetmetal upside, be located a plurality of magnets and the lid on the sheetmetal are located insulating part on the coil subassembly, insulating part have the main part and distribute in a plurality of protruding portions of main part periphery, two adjacent protruding portions are followed the circumference direction interval of main part forms a spacing groove of accepting corresponding magnet.

As a further improvement of the present invention, the upper surface of the insulating member is not lower than the upper surface of the magnet.

As a further improvement of the utility model, the insulating part still has from its main part to its central point sunken form in order to give the cable subassembly provides the scarce portion of stepping down in the space of stepping down, it is in to step down scarce portion be equipped with one respectively to the ascending both sides of circumference side the spacing groove.

As a further improvement, the utility model is located step down two of scarce portion both sides the spacing groove with step down scarce portion intercommunication setting.

As a further improvement, the limiting groove is provided with a magnet corresponding to the magnet to accommodate and limit the magnet, and the magnet is uniformly distributed on the periphery of the main body.

As a further improvement of the present invention, an upper surface of the protruding portion is coplanar with an upper surface of the main body portion to abut to an inner wall surface of the housing together.

As a further improvement of the present invention, a lower surface of the protruding portion is lower than a lower surface of the main body portion to form a lower convex portion located on a lower side of the main body portion.

As a further improvement of the present invention, the lower convex portion is located outside the coil block so as to limit the coil block at an inner side thereof in the radial direction.

As a further improvement of the present invention, the metal sheet has a concave fitting groove formed in the periphery thereof, the lower convex portion includes a first lower convex portion extending downward from the first height of the main body and a second lower convex portion extending downward from the second height of the main body, and the first lower convex portion extends downward into the fitting groove.

As a further improvement of the present invention, the metal sheet has a base portion and a support table located on the periphery of the base portion, and the magnet is located on the support table.

The utility model has the advantages that: the utility model discloses the wireless subassembly that charges is through forming protruding portion and spacing groove around the insulating part to effective location magnet guarantees the wireless reliability of charging, and then guarantees the wireless reliability of charging of intelligent terminal, has solved the thermal interference and the EMI problem when current wireless charging.

Drawings

Fig. 1 is the utility model discloses wireless charging assembly's stereoscopic assembly picture.

Fig. 2 is a perspective assembly view of the wireless charging assembly shown in fig. 1 with the cover removed.

Fig. 3 is a perspective view of a magnetic coil assembly of the wireless charging assembly shown in fig. 1.

Fig. 4 is a view of the magnetic coil assembly of fig. 3 from another perspective.

Fig. 5 is an exploded perspective view of the magnetic coil assembly shown in fig. 3.

Fig. 6 is a view of the magnetic coil assembly of fig. 5 from another perspective.

Fig. 7 is a cross-sectional view of the magnetic coil assembly shown in fig. 3.

Fig. 8 is a cross-sectional view of the wireless charging assembly shown in fig. 1.

Fig. 9 is a partially exploded view of the electrical connector of the wireless charging assembly shown in fig. 1.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiment, and the structural, method, or functional changes made by those skilled in the art according to the embodiment are all included in the scope of the present invention.

Please refer to fig. 1 to 9, which illustrate a wireless charging assembly 100 of the present invention, the wireless charging assembly 100 includes a housing 1, a magnetic coil assembly 2 accommodated in the housing 1, an electrical connector 3 for connecting with an external device, and a cable assembly 4 electrically connecting the magnetic coil assembly 2 with the electrical connector 3, the cable assembly 4 is connected with the magnetic coil assembly 2 in the housing 1, and the housing 1 includes a base shell 12 and a cover 13 which are covered with each other.

The magnetic coil unit 2 includes a metal piece 21 disposed close to the base case 12 and a coil unit 22 disposed on an upper side of the metal piece 21, and the metal piece 21 includes a raised portion 212 formed to protrude toward the base case 12 so as to abut on the base case 12.

Specifically, the metal sheet 21 has a base portion 211, and the raised portion 212 is integrally formed to protrude downward from the lower surface of the base portion 211. In the present invention, the middle portion of the base portion 211 is hollow, and the raised portion 212 includes an extension wall 2121 connected to the base portion 211 and an abutment wall 2123 arranged in parallel to the base portion 211 to contact the base shell 12.

The metal sheet 21 further includes a support base 213 located on the periphery of the base portion 211 and an upward protruding wall 215 connecting the support base 213 and the base portion 211, and the support base 213 and the upward protruding wall 215 are connected in an L-shape. The coil assembly 22 includes a ferrite 221 and a coil 223 positioned on the ferrite 221.

The magnetic coil assembly 2 further has a plurality of magnets 23 located on the metal sheet 21 and an insulating member 24 located on the coil assembly 22, and the magnets 23 are located on the supporting platform 213.

The base shell 12 has a bottom wall 121 and a sidewall 123 extending from the periphery of the bottom wall 121 in a direction perpendicular to the bottom wall 121, and the raised portion 212 abuts against the bottom wall 121.

The metal sheet 21 has a plurality of the supporting bases 213 arranged at intervals in the circumferential direction, and a fitting groove 214 is formed at an interval between two adjacent supporting bases 213.

The insulating member 24 has a main body portion 241 and a plurality of protruding portions 242 distributed on the periphery of the main body portion 241, and a portion of the protruding portions 242 downwardly extends into the fitting groove 214. Two adjacent protruding portions 242 form a stopper groove 243 for accommodating the corresponding magnet 23 at an interval in the circumferential direction of the main body portion 241.

In the present invention, the upper surface of the insulator 24 is not lower than the upper surface of the magnet 23.

In addition, the insulating member 24 further has a yielding notch 244 formed by recessing from the main body 241 to the center thereof to provide a yielding space for the cable assembly 4, wherein the yielding notch 244 is provided with one limiting groove 243 on each of two sides in the circumferential direction. And, two of the limiting grooves 243 located at both sides of the abdicating notch 244 are communicated with the abdicating notch 244.

The limiting grooves 243 are arranged corresponding to the magnets 23 one by one to accommodate and limit the corresponding magnets 23, and the magnets 23 are uniformly distributed on the periphery of the main body portion 241.

The upper surface of the protruding portion 242 is coplanar with the upper surface of the main body portion 241 to commonly abut to the inner wall surface of the housing 1.

The lower surface of the protrusion 242 is lower than the lower surface of the body portion 241 to form a lower protrusion 245 at the lower side of the body portion 241. The lower protrusion 245 is located on the outer side of the coil block 22 to restrain the coil block 22 on the inner side thereof in the radial direction.

The metal sheet 21 has the fitting grooves 214 recessed in the periphery thereof, and the lower protrusions 245 include first lower protrusions 2451 protruding downward beyond the first height of the main body portion 241 and second lower protrusions 2452 protruding downward beyond the second height of the main body portion 241, and the first lower protrusions 2451 protrude downward into the corresponding fitting grooves 214. Further preferably, one second lower protrusion 2452 is disposed between two adjacent first lower protrusions 2451.

In the illustrated embodiment of the present invention, every two magnets 23 are located on the same support platform 213.

In addition, the electrical connector 3 includes a plug connector 31, a circuit board 32 mechanically and electrically connected to the plug connector 31, and a housing 33 covering the circuit board 32. In the illustrated embodiment of the present invention, the electrical connector 3 conforms to the USB Type C standard, and in other embodiments, the electrical connector 3 can also be a connector conforming to other standards.

Further, the circuit board 32 is provided with a voltage boosting circuit 321 and a wireless charging circuit 322, and the wireless charging circuit 322 is separated from the magnetic coil assembly 2, so as to avoid thermal interference and electromagnetic interference (EMI) problems in wireless charging.

The utility model discloses well wireless subassembly 100 that charges is through forming protruding portion 242 and spacing groove 243 around insulating part 24 to effective positioning magnet 23 guarantees magnetic coil subassembly 2's in the casing 1 magnetism magnetic attraction and the reliability that wireless charges, and then guarantees the reliability that intelligent terminal wireless charged, has solved the thermal interference and the EMI problem when current wireless charges.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a wireless subassembly that charges, its includes the casing, accept in magnetic coil subassembly in the casing, be used for with the electric connector that external equipment links to each other and with magnetic coil subassembly with electric connector electric connection's cable subassembly, the cable subassembly in the casing with the magnetic coil subassembly links to each other its characterized in that: the magnetic coil assembly is provided with a metal sheet, a coil assembly positioned on the upper side of the metal sheet, a plurality of magnets positioned on the metal sheet and an insulating part covered on the coil assembly, the insulating part is provided with a main body part and a plurality of protruding parts distributed on the periphery of the main body part, and two adjacent protruding parts form a limiting groove for accommodating the corresponding magnets at intervals along the circumferential direction of the main body part.

2. The wireless charging assembly of claim 1, wherein: the upper surface of the insulator is not lower than the upper surface of the magnet.

3. The wireless charging assembly of claim 1, wherein: the insulating part still has from its main part to its central part sunken form in order to give cable subassembly provides the scarce portion of stepping down of space of stepping down, it is in to step down scarce portion of stepping down both sides in the circumferential direction are equipped with one respectively the spacing groove.

4. The wireless charging assembly of claim 3, wherein: the two limiting grooves positioned on two sides of the abdicating notch part are communicated with the abdicating notch part.

5. The wireless charging assembly of claim 3, wherein: the limiting grooves are in one-to-one correspondence with the magnets to accommodate and limit the corresponding magnets, and the magnets are uniformly distributed on the periphery of the main body part.

6. The wireless charging assembly of any of claims 1-5, wherein: an upper surface of the protruding portion is coplanar with an upper surface of the main body portion to commonly abut to an inner wall surface of the housing.

7. The wireless charging assembly of claim 6, wherein: the lower surface of the protruding portion is lower than the lower surface of the main body portion to form a lower convex portion located on the lower side of the main body portion.

8. The wireless charging assembly of claim 7, wherein: the lower convex portion is located outside the coil block to restrain the coil block at an inner side thereof in a radial direction.

9. The wireless charging assembly of claim 8, wherein: the metal sheet is provided with a matching groove concavely arranged on the periphery of the metal sheet, the lower convex part comprises a first lower convex part and a second lower convex part, the first lower convex part downwards exceeds the first height of the main body part, and the second lower convex part downwards exceeds the second height of the main body part, and the first lower convex part downwards extends into the corresponding matching groove.

10. The wireless charging assembly of any of claims 1-5, wherein: the metal sheet has a base portion and a support base located on the periphery of the base portion, and the magnet is located on the support base.