CN208423894U - Wireless charger - Google Patents

Abstract

The utility model discloses a kind of wireless chargers.Wireless charger is suitable for charging to electronic equipment, wireless charger includes base assembly and electromagnetic coil, base assembly has the containing part for being suitable for placing electronic equipment, at least partially thermal insulator of containing part, and electromagnetic coil is set in base assembly and opposite with containing part.Wireless charger according to the present utility model; by the way that thermal insulator is arranged on base assembly; can by around electromagnetic coil heat and electronic equipment be spaced apart; so as to reduce the heat for being transmitted to electronic equipment; so as to protect electronic equipment, electronic equipment is avoided to have an adverse effect because of charging.

Description

Wireless charger

technical field

The utility model relates to the technical field of electronic equipment, in particular, to a wireless charger.

Background technique

With the rapid development of electronic devices and the development of various application software, people charge more frequently for electronic devices, and traditional wired charging causes charging restrictions, which is very inconvenient. With the development and popularization of wireless charging technology, it has become a trend to apply wireless charging technology to battery charging of electronic devices. Wireless charging technology originates from wireless power transmission technology and can be divided into two types: low-power wireless charging and high-power wireless charging. Low-power wireless charging often uses electromagnetic induction. The primary coil has an alternating current of a certain frequency, and a certain current is generated in the secondary coil through electromagnetic induction, thereby transferring energy from the transmitting end to the receiving end.

In the related art, by arranging a wireless charger, the coil in the wireless charger and the coil in the electronic device are used to form electromagnetic induction to realize the charging of the electronic device. In the related art, a wireless charger will generate a lot of heat during use, and the heat is likely to adversely affect electronic devices (eg, mobile phones).

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a wireless charger, which has the advantages of simple structure and little impact on the performance of electronic equipment when used.

According to the wireless charger of the embodiment of the present invention, the wireless charger is suitable for charging electronic equipment, and the wireless charger includes: a base assembly, the base assembly has a holding part suitable for placing the electronic equipment, At least a part of the holding part is a heat insulating member; an electromagnetic coil, the electromagnetic coil is arranged in the base assembly and is opposite to the holding part.

According to the wireless charger according to the embodiment of the present invention, by arranging a heat insulating member on the base assembly, the heat around the electromagnetic coil can be separated from the electronic device, so that the heat transferred to the electronic device can be reduced, so that the electronic device can be protected, Avoid adverse effects on electronic devices due to charging.

In some embodiments, the thermal insulation member is a glass fiber wool board, a polyurethane foam board, a micro-nano thermal insulation board or an aerogel felt piece.

In some embodiments, the base assembly includes: a first cover body; a second cover body, the second cover body is engaged with the first cover body, and the electromagnetic coil is located between the first cover body and the first cover body. Between the second cover bodies, the second cover body protrudes toward the first cover body to form the receiving portion, and the second cover body is the heat insulating member.

In some embodiments, the first cover is a thermally conductive member.

In some embodiments, the first cover body is a metal piece.

In some embodiments, the wireless charger further includes a heat sink disposed in the base assembly, the heat sink being in contact with the electromagnetic coil.

In some embodiments, the heat sink is an aluminum alloy sheet.

In some embodiments, the heat sink is annular, and the heat sink covers the electromagnetic coil.

In some embodiments, the wireless charger further includes a rubber pad, the rubber pad is bonded to the outer surface of the base assembly, and the rubber pad is located on a side of the base assembly away from the receiving portion.

In some embodiments, the rubber pad is annular.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is an exploded view of a wireless charger according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a wireless charger according to an embodiment of the present invention.

Reference number:

wireless charger 100,

The base assembly 110, the receiving part 111, the first cover 112, the second cover 113,

Solenoid coil 120,

heat sink 130,

Rubber pad 140 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as a limitation of the present invention.

The wireless charger 100 according to the embodiment of the present invention is described below with reference to FIGS. 1-2 . It should be noted that, the wireless charger 100 can use the principles of electromagnetic induction, magnetic field resonance, etc. to charge the electronic device (eg, mobile phone) placed thereon.

As shown in FIG. 1 and FIG. 2 , according to the wireless charger 100 according to the embodiment of the present invention, the wireless charger 100 is suitable for charging electronic devices. The wireless charger 100 includes a base assembly 110 and an electromagnetic coil 120 .

Specifically, the base assembly 110 has a holding portion 111 suitable for placing electronic equipment. When the electronic equipment needs to be charged, the electronic equipment can be placed in the holding portion 111, and the holding portion 111 can be configured as a groove body. Therefore, the electronic device can be stably confined within the accommodating portion 111 . Considering that the wireless charger 100 releases heat when charging the electronic device, when the heat is transferred to the electronic device, the normal use of the electronic device is likely to be adversely affected, and if the temperature is too high, the electronic device may explode. In order to avoid transferring the heat around the electromagnetic coil 120 to the electronic device, at least a part of the receiving portion 111 may be provided as a heat insulating member.

As shown in FIG. 1 , the electromagnetic coil 120 is disposed in the base assembly 110 and is opposite to the holding portion 111 . It should be noted that “opposite” here may refer to when the electronic device is placed in the holding portion 111 to utilize wireless charging When charging the electronic device, the electromagnetic coil 120 of the wireless charger 100 corresponds to the corresponding coil on the electronic device, and the electromagnetic coil 120 of the wireless charger 100 can charge the electronic device.

According to the wireless charger 100 of the embodiment of the present invention, by disposing the heat insulating member on the base assembly 110, the heat around the electromagnetic coil 120 can be separated from the electronic device, so that the heat transferred to the electronic device can be reduced, so that the protection can be protected. Electronic equipment to avoid adverse effects of electronic equipment due to charging.

According to some embodiments of the present invention, the thermal insulation member may be a glass fiber wool board, a polyurethane foam board, a micro-nano thermal insulation board or an aerogel felt member. It should be noted that the thermal conductivity of glass fiber wool board is 0.035 watts, which can be divided into hard board and soft felt, glass fiber structure; the thermal conductivity of polyurethane foam board (PU/PIR) is 0.02-0.035 watts The thermal conductivity of the micro-nano thermal insulation board is 0.02 watts, and the thermal conductivity of the aerogel felt at room temperature is 0.018W/(K·m).

As shown in FIG. 1 , according to some embodiments of the present invention, the base assembly 110 may include a first cover body 112 and a second cover body 113 , wherein the second cover body 113 is snapped with the first cover body 112 , and the electromagnetic coil 120 is located between the first cover body 112 and the second cover body 113 , the second cover body 113 protrudes toward the first cover body 112 to form the receiving portion 111 , and the second cover body 113 is a heat insulating member. Therefore, it is convenient to process the base assembly 110, so that the part of the base assembly 110 in contact with the electronic device is a heat insulating member, so as to effectively isolate the heat.

Further, the first cover 112 may be a heat conducting member. It can be understood that the first cover 112 is far away from the electronic device, and the first cover 112 can be used to conduct the heat of the electromagnetic coil 120 to the area far away from the electronic device, so that the Avoid heat transfer to electronic equipment. Further, the first cover body 112 may be a metal piece, for example, the first cover body 112 is a copper piece or an aluminum piece, and the metal piece has a large thermal conductivity, which can quickly dissipate heat.

As shown in FIG. 1 , according to some embodiments of the present invention, the base assembly 110 may include a first cover body 112 and a second cover body 113 . The second cover body 113 is connected to the first cover body 112 . For example, the first cover body 112 and the second cover body 113 may be fixedly connected. The first cover body 112 and the second cover body 113 can also be detachably connected. The electromagnetic coil 120 may be located between the first cover body 112 and the second cover body 113 . For example, the first cover 112 and the second cover 113 can be snapped together, and at least a part of the first cover 112 is spaced apart from the second cover 113 to form an installation space in which the electromagnetic coil 120 can be located .

The second cover body 113 protrudes toward the first cover body 112 to form a receiving portion 111 . The receiving portion 111 can have a groove structure, the electronic device can be placed in the groove body, and the side wall of the groove body can limit the electronic device. bit. Therefore, the first cover 112 and the second cover 113 can be used to form an installation space to accommodate the electromagnetic coil 120 , and the receiving portion 111 can be directly formed on the second cover 113 . The structure is simple and the installation cost can be reduced. In addition, in order to stably place the electronic device in the tank body, the side wall of the tank body may be provided with limit bumps, and the limit bumps may be multiple spaced apart.

In some embodiments of the present invention, the first cover body 112 can be snapped with the second cover body 113 . For example, the first cover body 112 may be provided with a first matching portion, the second cover body 113 may be provided with a second matching portion adapted to be connected with the first matching portion, one of the first matching portion and the second matching portion is a groove, and the other is a convex block, or one of the first matching part and the second matching part is a slot, and the other is a hook. Thus, the connection between the first cover body 112 and the second cover body 113 can be realized, thereby facilitating the installation and removal of the electromagnetic coil 120 .

In some embodiments of the present invention, the first cover body 112 may be connected with the second cover body 113 through a connecting member. For example, the first cover body 112 may have a first threaded hole, the second cover body 113 may have a second threaded hole, the threaded fastener may pass through the first threaded hole and the second threaded hole in sequence, and the threaded fastener may be connected with The first threaded hole is threadedly connected, and the threaded fastener can also be threadedly connected with the second threaded hole. Thus, the connection between the first cover body 112 and the second cover body 113 can be realized, thereby facilitating the installation and removal of the electromagnetic coil 120 .

In some embodiments of the present invention, the second cover 113 may be a non-metallic piece. Thus, the influence of the second cover body 113 on the charging performance of the electromagnetic coil 120 can be avoided. For example, the second cover 113 may be a rubber part or a plastic part. In some embodiments of the present invention, the first cover body 112 may be a metal piece. Therefore, the heat dissipation rate of the first cover body 112 can be improved, and the heat generated by the electromagnetic coil 120 during the operation process can be quickly dissipated through the first cover body 112 .

According to some embodiments of the present invention, the wireless charger 100 may further include a rubber pad 140 , the rubber pad 140 is bonded to the base assembly 110 , and the rubber pad 140 is located on a side of the base assembly 110 away from the receiving portion 111 . Thus, the rubber pad 140 can increase the surface adhesion performance of the base assembly 110, so that the placement stability of the wireless charger 100 can be improved. Further, the rubber pad 140 may be formed as a ring, and the rubber pad 140 may extend along the edge of the base assembly 110 . In this way, the heat dissipation performance of the wireless charger 100 can be avoided from being affected by the arrangement of the rubber pad 140 .

As shown in FIG. 1 , according to some embodiments of the present invention, the wireless charger 100 may further include a heat sink 130 , the heat sink 130 is disposed in the base assembly 110 , and the heat sink 130 is in contact with the electromagnetic coil 120 , so that heat dissipation can be utilized. The sheet 130 conducts heat around the electromagnetic coil 120, reducing the amount of heat conducted to the electronic device. Further, the heat sink 130 may be an aluminum alloy sheet.

In the example shown in FIG. 1 , for the convenience of disposing the heat sink 130 , the heat sink 130 may be annular, and the heat sink 130 covers the electromagnetic coil 120 . On the one hand, space can be saved, and on the other hand, the contact area between the heat sink 130 and the electromagnetic coil 120 can be increased, and the heat dissipation efficiency of the heat sink 130 can be improved.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "circumferential", etc. are based on the orientations or positions shown in the drawings. The positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present invention. Variations, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A wireless charger, wherein the wireless charger is suitable for charging an electronic device, and the wireless charger comprises: a base assembly, the base assembly has a holding part suitable for placing the electronic device, and at least part of the holding part is a heat insulating member; The electromagnetic coil is arranged in the base assembly and is opposite to the receiving portion. 2 . The wireless charger according to claim 1 , wherein the thermal insulation member is a glass fiber wool board, a polyurethane foam board, a micro-nano thermal insulation board or an aerogel felt piece. 3 . 3. The wireless charger of claim 1, wherein the base assembly comprises: the first cover; a second cover body, the second cover body is clamped with the first cover body, the electromagnetic coil is located between the first cover body and the second cover body, and the second cover body faces the The first cover body protrudes to form the receiving portion, and the second cover body is the heat insulating member. 4. The wireless charger according to claim 3, wherein the first cover is a heat conducting member. 5 . The wireless charger according to claim 4 , wherein the first cover is a metal piece. 6 . 6 . The wireless charger according to claim 1 , further comprising a heat sink, the heat sink is disposed in the base assembly, and the heat sink is in contact with the electromagnetic coil. 7 . 7 . The wireless charger according to claim 6 , wherein the heat sink is an aluminum alloy sheet. 8 . 8 . The wireless charger according to claim 6 , wherein the heat sink is annular, and the heat sink is wrapped around the electromagnetic coil. 9 . 9 . The wireless charger according to claim 1 , further comprising a rubber pad, the rubber pad is bonded to the outer surface of the base assembly, and the rubber pad is located at a distance of the base assembly away from the container. 10 . side of the part. 10 . The wireless charger of claim 9 , wherein the rubber pad is annular. 11 .