CN217692807U

CN217692807U - Wireless charging module, wireless charging transmitting base station and wireless charging receiving terminal

Info

Publication number: CN217692807U
Application number: CN202220999641.2U
Authority: CN
Inventors: 黄伯明
Original assignee: Anker Innovations Co Ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-10-28
Anticipated expiration: 2032-04-27

Abstract

The embodiment of the application discloses wireless charging module, wireless transmission basic station and the wireless receiving terminal that charges, wireless charging module is applied to wireless transmission basic station and/or the wireless receiving terminal that charges, wireless charging module includes: a circuit board having a first avoidance portion; the heat dissipation module is at least partially arranged on the first avoidance part; and the coil module is arranged on one side of the heat dissipation module, is attached to the heat dissipation module and is electrically connected with the circuit board. The wireless charging module of this application embodiment is because the circuit board has first portion of dodging, and the heat dissipation module part or whole are located first portion of dodging, avoid heat dissipation module and circuit board stack on thickness direction to can guarantee under the condition that wireless charging emission basic station or wireless receiving terminal thickness of charging are thinner, can also have good radiating effect.

Description

Wireless charging module, wireless charging transmitting base station and wireless charging receiving terminal

Technical Field

The application relates to the field of wireless charging, in particular to a wireless charging module, a wireless charging transmitting base station and a wireless charging receiving terminal.

Background

In the related art, along with the popularization of wireless charging equipment terminals, wireless charging transmitting base stations are also rapidly increasing, and most of the wireless charging transmitting base stations in the market cannot give consideration to both thickness and heat dissipation, or the heat dissipation can be still thick, or the thickness is thin but the heat dissipation is not good. Therefore, how to have good heat dissipation under the condition of ensuring that the thickness of the wireless charging transmitting base station is relatively thin is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a wireless charging module, a wireless charging transmitting base station and a wireless charging receiving terminal, which can solve the technical problems in the related art.

The first aspect of the embodiments of the present application provides a wireless charging module, and the wireless charging module is applied to a wireless charging transmitting base station and/or a wireless charging receiving terminal, the wireless charging module includes: a circuit board having a first avoidance portion; the heat dissipation module is at least partially arranged on the first avoidance part; and the coil module is arranged on one side of the heat dissipation module, is attached to the heat dissipation module and is electrically connected with the circuit board.

In some exemplary embodiments, the wireless charging system further comprises a magnet module, the magnet module is provided with a second avoiding part, the coil module is at least partially arranged at the second avoiding part, and the magnet module is used for adsorbing the wireless charging transmitting base station or the wireless charging receiving terminal.

In some exemplary embodiments, the first avoiding portion includes a first through hole, and the heat dissipation module is disposed in the first through hole.

In some exemplary embodiments, the shape of the circuit board includes a ring shape.

In some exemplary embodiments, the second avoiding portion includes a second through hole, and the coil module is disposed in the second through hole.

In some exemplary embodiments, the shape of the magnet module comprises a ring shape.

In some exemplary embodiments, the size of the circuit board is the same as the size of the magnet module.

In some exemplary embodiments, the circuit board is disposed to conform to the magnet module.

A second aspect of the embodiments of the present application provides a wireless charging transmission base station, including: a first housing; the wireless charging module according to any one of the above claims, wherein the wireless charging module is arranged in the first shell; and the power input piece is electrically connected with the circuit board and is used for connecting the circuit board with a power supply.

A third aspect of the embodiments of the present application provides a wireless charging receiving terminal, including: a second housing; a battery disposed within the second housing; and the wireless charging module is arranged in the second shell, and the circuit board is electrically connected with the storage battery.

Has the advantages that: the wireless charging module of this application embodiment is because the circuit board has first portion of dodging, and the heat dissipation module part or whole are located first portion of dodging, avoid heat dissipation module and circuit board stack on thickness direction to can guarantee under the condition that wireless charging emission basic station or wireless receiving terminal thickness of charging are thinner, can also have good radiating effect.

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 embodiments will be briefly described 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 without creative efforts.

Fig. 1 is a schematic structural view of a circuit board bonding coil module in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a wireless charging module according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a wireless charging module according to another embodiment of the present application;

fig. 4 is a schematic structural diagram of a wireless charging module according to another embodiment of the present application;

fig. 5 is a schematic structural diagram of a wireless charging module according to still another embodiment of the present application.

Description of reference numerals: 100. a wireless charging module; 110. a circuit board; 111. a first avoidance portion; 120. a heat dissipation module; 130. a coil module; 140. a magnet module; 141. a second avoidance portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1, in the related art, the circuit board 110 for wireless charging is directly attached to the back surface of the coil module 130, and heat generated by the circuit board 110 and heat generated by the coil module 130 are mutually overlapped, so that the temperature of the coil module 130 or the circuit board 110 is easily increased, and when the temperature of the coil module 130 or the circuit board 110 is higher than a set threshold, the circuit board 110 reduces the charging power to prevent the coil or the circuit board 110 from being damaged by high temperature, thereby prolonging the charging time.

As shown in fig. 2, a first aspect of the embodiment of the present application provides a wireless charging module 100, which is applied to a wireless charging base station and/or a wireless charging receiving terminal, where the wireless charging module 100 includes a circuit board 110, a heat dissipation module 120, and a coil module 130.

The circuit board 110 has a first avoiding portion 111, the first avoiding portion 111 may be a first through hole, and the outline dimension of the heat dissipation module 120 is preferably slightly smaller than the dimension of the first through hole. The depth of the first through hole is the thickness of the circuit board 110, when the depth of the first through hole is greater than the thickness of the heat dissipation module 120, the heat dissipation module 120 may be entirely located in the first through hole, and when the depth of the first through hole is less than the thickness of the heat dissipation module 120, the heat dissipation module 120 may be partially located in the first through hole. That is, when the thickness of the circuit board 110 is greater than the thickness of the heat dissipation module 120, the thickness occupied by the circuit board 110 and the heat dissipation module 120 is equal to the thickness of the circuit board 110; when the thickness of the circuit board 110 is smaller than the thickness of the heat sink module 120, the thickness occupied by the circuit board 110 and the heat sink module 120 is equal to the thickness of the heat sink module 120. Preferably, the thickness of the thermal module 120 is the same as the thickness of the circuit board 110, that is, the thickness of the thermal module 120 is the same as the depth of the first through hole, so that the thermal module 120 is just disposed inside the first through hole, which not only avoids wasting space, but also exerts the maximum heat dissipation capability. It is understood that the first avoiding portion 111 may also be a first blind hole, and the heat dissipation module 120 may be located in the first blind hole entirely or partially. Of course, as shown in fig. 3, the first avoiding portion 111 may also be a first groove structure recessed relative to the edge surface of the heat dissipation module 120, for example, the circuit board 110 is a semi-annular structure.

The heat dissipation module 120 is used for taking away heat generated by the coil and the circuit board 110, and the heat dissipation module 120 may be a passive heat sink, such as a metal heat sink, on which heat conductive fins may be disposed to increase heat dissipation effect; for example, the heat pipe is provided with heat-conducting liquid, so that heat can be conducted quickly. The heat dissipation module 120 may also be an active heat sink, such as an axial fan or a centrifugal fan. Of course, the heat dissipation module 120 may be a combination of a dynamic heat sink and an active heat sink.

The coil module 130 at least includes a coil electrically connected to the circuit board 110, the coil is disposed on one side of the heat dissipation module 120, when the heat dissipation module 120 is a passive heat sink, the heat dissipation module 120 is preferably attached to the coil module 130, and when the heat dissipation module 120 is an active heat sink, a gap is left between the heat dissipation module 120 and the coil module 130. The number of coils may be one or more. The coil module 130 may further include a magnetic shielding sheet, which can enhance the magnetic induction intensity and improve the electromagnetic conversion efficiency. The magnetic shielding sheet may be disposed between the coil and the heat dissipation module 120, and may also serve to conduct heat.

To sum up, wireless charging module 100 of this application embodiment is because circuit board 110 has first portion 111 of dodging, and heat dissipation module 120 part or whole are located first portion 111 of dodging, avoids heat dissipation module 120 and circuit board 110 stack on thickness direction to can guarantee wireless charging emission basic station or wireless receiving terminal thickness under the thinner condition, can also have good radiating effect, thereby reduce the charge time, prolonged wireless charging module 100's life.

As shown in fig. 4, in some embodiments, the wireless charging module 100 further includes a magnet module 140, and a corresponding magnetic member, such as a magnet or an iron sheet, is disposed in the wireless charging device adapted to the wireless charging module 100. It should be noted that, when the wireless charging module 100 is applied to a wireless charging base station, the wireless charging device may be a mobile phone, and when the wireless charging module 100 is applied to a wireless charging receiving terminal, the wireless charging device may be a wireless charger. Magnet module 140 is used for adsorbing wireless battery charging outfit for the coil assembly in the wireless battery charging outfit aligns with the coil in the coil module 130, in order to increase charge efficiency, reduces the degree of difficulty of manual alignment, promotes user experience. In addition, because coil module 130 is pressed close to the coil pack in the wireless charging device, the magnetic induction intensity of the coil pack in the wireless charging device can be increased, and the charging efficiency is improved.

With continued reference to fig. 4, the magnet module 140 has a second escape portion 141, and the coil module 130 is at least partially disposed at the second escape portion 141. The second avoiding portion 141 may be a second through hole, and the contour size of the coil module 130 is preferably slightly smaller than the size of the second through hole. The depth of the second through hole is the thickness of the magnet module 140, when the depth of the second through hole is greater than the thickness of the coil module 130, the coil module 130 may be entirely located in the second through hole, and when the depth of the second through hole is less than the thickness of the coil module 130, the coil module 130 may be partially located in the second through hole. That is, when the thickness of the magnet module 140 is greater than that of the coil module 130, the thickness occupied by the magnet module 140 and the coil module 130 is equal to the thickness of the magnet module 140; when the thickness of the magnet module 140 is smaller than that of the coil module 130, the thickness occupied by the magnet module 140 and the coil module 130 is equal to that of the coil module 130. The thickness of preferred coil module 130 is the same with magnet module 140's thickness, and the thickness of coil module 130 is unanimous with the second through-hole degree of depth promptly to make coil module 130 set up the inside at the second through-hole just, avoid extravagant space, coil module 130 also can improve charge efficiency as far as, and coil module 130 can be in the same place with thermal module 120 laminating simultaneously, and compact structure is firm, and it is good to prevent falling the nature. The second avoiding portion 141 may also be a second blind hole, and the coil module 130 may be wholly or partially located in the second blind hole. Of course, as shown in fig. 5, the second avoiding portion 141 may also be a second groove structure recessed with respect to the edge surface of the coil module 130, for example, the magnet module 140 may be shaped as a semi-annular structure.

As shown in fig. 2 and 4, in some embodiments, the first avoiding portion 111 is a first through hole, and the heat dissipation module 120 is disposed in the first through hole. The shape of the heat dissipation module 120 may be circular, elliptical, rectangular-like, etc. The shape of the first through hole can be circular, oval, rectangle-like, and the like. Preferably, the first through hole and the heat dissipation module 120 are both circular, and the diameter of the first through hole is slightly larger than that of the heat dissipation module 120, so that the structure is more compact. The circuit board 110 may be integrally disposed, or may be formed by splicing a plurality of sub-circuit boards 110. When the circuit board 110 is formed by splicing a plurality of sub-circuit boards 110, the first through hole may be formed by splicing and enclosing a plurality of sub-circuit boards 110 having arc-shaped slots.

In some embodiments, the outer profile of the circuit board 110 may be circular, oval, rectangular, etc. In order to reduce the volume, the circuit board 110 is preferably circular, and the first through hole is disposed in the middle of the circuit board 110, i.e., the circuit board 110 is annular in shape. It is understood that the circuit board 110 may be shaped as a half-ring, a quarter-ring, etc. to avoid other components.

As shown in fig. 4, in some embodiments, the second avoiding portion 141 is a second through hole, and the coil module 130 is disposed in the second through hole. The shape of the coil may be circular, elliptical, rectangular-like, etc. The shape of the second through hole may be circular, elliptical, rectangular-like, etc. Preferably, the second through hole has a circular shape with a diameter slightly larger than that of the coil, so that the structure can be more compact.

In some embodiments, the magnet module 140 is ring-shaped, and the magnetic attraction member corresponding to the magnet module 140 in the wireless charging transmitting base station or the wireless charging receiving terminal is also circular, so that the magnetic attraction member and the magnet module 140 can be attracted in any radial direction, thereby facilitating use. The magnet module 140 may be an integrated type, or may be formed by splicing a plurality of bar magnets into a ring-like shape. It is understood that the magnet module 140 may also be a half ring, a quarter ring, etc.

In some embodiments, the size of the circuit board 110 is the same as the contour size of the magnet module 140, so that the wireless charging module 100 is more compact and the overall size of the wireless charging module 100 is minimized.

In some embodiments, the circuit board 110 is disposed adjacent to the magnet module 140, so that a gap between the circuit board 110 and the magnet module 140 is as small as possible, thereby reducing the overall thickness of the wireless charging module 100.

A second aspect of the embodiment of the present application provides a wireless charging transmitting base station, which includes a first housing, a power input, and the wireless charging module 100 of any one of the foregoing embodiments.

The first housing is used for covering and protecting the wireless charging module 100, the first housing may be plastic, or the first housing may be partially made of metal to enhance the heat dissipation effect, and the portion of the first housing corresponding to the coil module is made of plastic or glass to avoid blocking magnetism and affecting the charging effect. In order to further increase the heat dissipation effect, the first housing may be provided with heat dissipation holes.

The power input part is used for connecting the circuit board 110 with a power supply, then the circuit board 110 transmits electric energy to the coil module, and the coil module produces an alternating magnetic field, so that wireless transmitting and charging are realized. The power input member may be a USB connector, and the USB connector may be disposed on the first housing. The power input unit may also be a power line directly connected to the circuit board 110, and the power line passes through the first housing and is connected to an external charging head.

A third aspect of the embodiment of the present application provides a wireless charging receiving terminal, including a second housing, a storage battery, and the wireless charging module 100 as described in any one of the above.

The second casing is used for cladding and protecting wireless charging module 100 and battery, and the second casing can be plastics, or the second casing can be partly for the metal to reinforcing radiating effect, and the part that the second casing corresponds the coil module is plastics or glass, in order to avoid keeping off the magnetism, influences the charging effect. In order to further increase the heat dissipation effect, the second housing may be provided with heat dissipation holes.

The wireless charging module 100 is disposed in the second housing, and the circuit board 110 is electrically connected to the battery. The coil module is used for inducing an alternating magnetic field to generate current, and the current generated by the coil module is processed by the circuit board 110 and then transmitted to the storage battery, so that wireless receiving and charging are realized.

The storage battery is arranged in the second shell, the storage battery is preferably a lithium battery, the weight of the lithium battery is light, and the memory effect is small.

It should be noted that the circuit board 110 is electrically connected to the coil module 130, when the wireless charging module 100 is applied to a charging and transmitting base station, the circuit board 110 is used for controlling the transmitting power of the coil module 130 according to a temperature, a charging protocol, and the like, and when the wireless charging module 100 is applied to a wireless charging and receiving terminal, the circuit board 110 is used for controlling the receiving power of the coil module 130 according to a temperature, a charging protocol, and the like. It can be understood that the wireless charging module 100 may also be applied to a charging transmitting base station and a wireless charging receiving terminal at the same time, for example, the wireless charging module 100 is applied to a mobile power supply, a mobile phone, a tablet, and the like, and the mobile power supply, the mobile phone, and the tablet may wirelessly charge themselves through a wireless charger, or may wirelessly charge other devices as a wireless charger. At this time, the circuit board 110 integrates electronic components required for receiving wireless charging and transmitting wireless charging, and the coil module 130 can be used as both a receiving coil and a transmitting coil.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wireless charging module is applied to a wireless charging transmitting base station and/or a wireless charging receiving terminal, and comprises:

a circuit board having a first avoidance portion;

the heat dissipation module is at least partially arranged on the first avoidance part;

and the coil module is arranged on one side of the heat dissipation module, is attached to the heat dissipation module and is electrically connected with the circuit board.

2. The wireless charging module according to claim 1, further comprising a magnet module, wherein the magnet module has a second avoiding portion, the coil module is at least partially disposed at the second avoiding portion, and the magnet module is configured to attach to the wireless charging transmitting base station or the wireless charging receiving terminal.

3. The wireless charging module of claim 1, wherein the first avoiding portion comprises a first through hole, and the heat dissipation module is disposed in the first through hole.

4. The wireless charging module of claim 3, wherein the shape of the circuit board comprises a ring shape.

5. The wireless charging module of claim 2, wherein the second avoiding portion comprises a second through hole, and the coil module is disposed in the second through hole.

6. The wireless charging module of claim 5, wherein the shape of the magnet module comprises a ring shape.

7. The wireless charging module of claim 2, wherein the size of the circuit board is the same as the size of the magnet module.

8. The wireless charging module of claim 2, wherein the circuit board is attached to the magnet module.

9. A wireless charging transmission base station, comprising:

a first housing;

the wireless charging module of any one of claims 1-8, disposed within the first housing; and

and the power input piece is electrically connected with the circuit board and is used for connecting the circuit board with a power supply.

10. A wireless charging receiving terminal, comprising:

a second housing;

a battery disposed within the second housing; and

the wireless charging module of any one of claims 1-8, disposed within the second housing, the circuit board electrically connected to the battery.