CN217064396U

CN217064396U - Wireless charger

Info

Publication number: CN217064396U
Application number: CN202220404938.XU
Authority: CN
Inventors: 李新源; 王明成; 王福强
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-26
Anticipated expiration: 2032-02-23

Abstract

The utility model belongs to the technical field of the electronic equipment field of charging and specifically relates to a wireless charger. The utility model discloses wireless charger, through inhale the subassembly with first magnetism and surround in the transmitting coil setting, and set up the breach on first magnetism is inhaled the subassembly, make and to set up the heat dissipation wind channel in the concave breach in can setting up on the apron in order to form the wind channel, the rethread sets up fan assembly and bloies, blow off the air from the air outlet to the wind channel that heat dissipation wind channel formed, thereby the heat dissipation of blowing off is carried out to the electronic product of placing on the face of charging of apron, the radiating efficiency in the charging process has been improved, thereby make wireless charger can use high-power transmitting coil to charge, and then the charging efficiency of wireless charger has been improved.

Description

Wireless charger

Technical Field

The utility model belongs to the technical field of the electronic equipment field of charging and specifically relates to a wireless charger.

Background

More and more electronic product begins to use wireless mode of charging to charge at present, especially in recent years, some magnetism inhale wireless charger of formula and also begin to use widely, and these magnetism inhale the formula charger in charging process, and coil and electronic product can produce the heat, and these wireless chargers mainly use heat conduction gel to dispel the heat at present to cool down coil and electronic product, guarantee charge efficiency. However, along with the improvement of the requirement of the electronic product on the charging speed, the power of the wireless charger is higher and higher, the heat generated in the charging process is higher and higher, and the heat dissipation requirement of the high-power magnetic wireless charger during working can not be met by simply using the heat-conducting gel for heat dissipation.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a wireless charger for radiating efficiency when improving high-power wireless charger and charging is improved, thereby improve charge efficiency.

The embodiment of the utility model provides a wireless charger, wireless charger includes: a base; the printed circuit board is arranged on the base; the transmitting coil is arranged on the base and is electrically connected with the printed circuit board; the first magnetic attraction component is arranged on the base in a surrounding mode around the transmitting coil, and at least two gaps are formed in the edge of the first magnetic attraction component; the fan assembly is arranged on the base and is electrically connected with the printed circuit board; the cover plate is fixedly arranged on the base and forms a shell with an inner space together with the base, and the printed circuit board, the transmitting coil, the first magnetic attraction component and the fan component are all positioned in the shell; the cover plate is arranged on the base, and the cover plate is arranged on the base and is opposite to the base.

Furthermore, the heat dissipation air duct is arranged in the middle of the cover plate, one end of the heat dissipation air duct extends to the edge of the cover plate, and the other end of the heat dissipation air duct forms a wind shielding surface.

Furthermore, the shell is provided with an air inlet communicated with the inside and the outside of the shell, and the air inlet is arranged on the base and/or the cover plate and is adjacent to the air inlet end of the fan assembly.

Furthermore, the number of the air inlets is more than 1, and the air inlets are arranged around two or three sides of the fan assembly except for one side of the air outlet end.

Furthermore, a wind collecting opening is further formed in the cover plate, the wind collecting opening is formed in one side, facing the base, of the cover plate and is arranged facing the air outlet end of the fan assembly, and the air outlet is communicated with the wind collecting opening through a channel.

Furthermore, the size of receiving the wind gap is greater than the air outlet, inlet air channel certainly receive the wind gap to the air outlet reduces gradually, just inlet air channel is partial to keep out wind face one side and sets up.

Furthermore, the two gaps are oppositely arranged on two sides of the transmitting coil, and the heat dissipation air duct is arranged along the length direction of the cover plate.

Further, the wireless charger further comprises: the second magnetism is inhaled the subassembly, sets up on the base, and is located in the breach, with first magnetism inhale the subassembly encircle jointly in transmitting coil, the thickness that the subassembly was inhaled to the second magnetism is less than the subassembly is inhaled to first magnetism.

Further, the thickness of the first magnetic component is greater than or equal to 2.5mm and less than or equal to 4 mm.

Further, the subassembly is inhaled to first magnetism comprises the first magnet of polylith, the subassembly is inhaled to second magnetism comprises the polylith second magnet.

The utility model discloses wireless charger, through inhale the subassembly with first magnetism and surround in transmitting coil setting, and set up the breach on first magnetism is inhaled the subassembly, make and to set up the heat dissipation wind channel in the recess breach on the apron, the rethread sets up fan assembly and bloies, blow off the air from the air outlet to the heat dissipation wind channel, thereby the heat dissipation of blowing air is carried out to the electronic product of placing on the face of charging of apron, the radiating efficiency in the charging process has been improved, thereby make wireless charger can use high-power transmitting coil to charge, and then the charging efficiency of wireless charger has been improved.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

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

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

fig. 3 is a schematic partial detailed structure diagram of a wireless charger according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a cover plate of a wireless charger according to an embodiment of the present invention;

fig. 5 is another specific structural schematic diagram of the cover plate of the wireless charger according to the embodiment of the present invention.

Legend: 1. a base; 2. a printed circuit board; 3. a transmitting coil; 4. a first magnetic attraction component; 41. a notch; 42. a first magnet; 5. a fan assembly; 6. a second magnetic attraction assembly; 61. a second magnet; 7. a cover plate; 71. an air outlet; 72. an air collecting opening; 73. an air inlet channel; 74. a heat dissipation air duct; 75. a wind shielding surface; a housing; 82. and an air inlet.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Meanwhile, it should be understood that, in the following description, a "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that the two be absent intermediate elements.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1-3, the wireless charger of the embodiment of the present invention comprises a base 1, a printed circuit board 2, a transmitting coil 3, a first magnetic attraction component 4, a fan component 5 and a cover plate 7. Wherein, printed circuit board 2, transmitting coil 3, first magnetism inhale subassembly 4 and fan subassembly 5 and all set up on base 1. The transmitter coil 3 and the fan assembly 5 are electrically connected to the printed circuit board 2, respectively. The first magnetic component 4 is disposed around the transmitting coil 3, and at least two notches 41 are formed on the edge of the first magnetic component 4. The cover plate 7 is fixedly installed on the base 1 and encloses a shell 8 with the base 1, the shell has an inner space, and the printed circuit board 2, the transmitting coil 3, the first magnetic attraction component 4 and the fan component 5 are all located inside the shell 8. The surface of the cover plate 7, which faces away from the base 1, is a charging surface, the charging surface is provided with a heat dissipation air duct 74, the heat dissipation air duct 74 is recessed into the notch 41, and an air outlet 71 communicated with an air outlet end of the fan assembly 5 is arranged in the heat dissipation air duct 74. Printed circuit board 2 can communicate the power through the wire, and when charging, printed circuit board 2 passes to transmitting coil 3 with the alternating current, and transmitting coil 3 charges the electronic product, and printed circuit board 2 still can be with 5 circular telegrams of fan assembly simultaneously, and 5 starts to blow in order to dispel the heat to transmitting coil 3 and electronic product by fan assembly. The heat dissipation air duct 74 is of a groove structure, and because the electronic product is placed above the cover plate 7, the notch part of the groove can be closed, so that the heat dissipation air duct 74 can be formed between the groove and the electronic product, and air blown out by the fan assembly 5 can enter the heat dissipation air duct 74 through the air outlet 71 and then is discharged through the heat dissipation air duct 74, so that heat generated by the transmitting coil 3 and the electronic product during charging is taken away, and the cooling effect is realized. This embodiment sets up 2 at least breach 41 through the edge at first magnetism subassembly 4 of inhaling, can form the recess to the indent on making apron 7, the deuterogamy uses fan assembly 5, make the air can follow the recess in the indent breach 41 and pass through in the radiating air duct 74 that forms between the electronic product, dispel the heat to transmitting coil 3 and electronic product, the radiating efficiency in the charging process has been improved, thereby make wireless charger can use more high-power transmitting coil 3 to charge, and then improved wireless charger's charging efficiency.

In a specific implementation manner, the heat dissipation air duct 74 is disposed in the middle of the cover plate 7, and one end of the heat dissipation air duct 74 extends to the edge of the cover plate 7, so that air can flow to the edge of the cover plate 7 along the heat dissipation air duct 74 and flow out, thereby avoiding the occurrence of the situation that the heat dissipation air duct 74 cannot discharge air due to the fact that the electronic device is large in size and covers the groove, and increasing the application range of the wireless charger. The other end of heat dissipation wind channel 74 forms face 75 that keeps out the wind, and the air can only flow to one direction like this, flows out along heat dissipation wind channel 74 from apron 7 edge promptly, has avoided the air current to be dispersed to the place that need not to carry out the heat dissipation, makes the air current flow through from the more department of generating heat of electronic equipment fast to take away more heats, the better effect of realizing the cooling.

In a specific embodiment, the housing 8 is provided with an air inlet 82 communicating the inside and the outside of the housing 8, and the air inlet 82 is disposed on the base 1 and/or the cover 7 and adjacent to the air inlet end of the fan assembly 5. When the fan assembly 5 is started, air outside the housing 8 can be sucked into the housing 8 from the air inlet 82, and air inside the housing 8 is blown out of the housing 8 from the air outlet 71, so that the air inside and outside the housing 8 can be ensured to circularly flow, and the heat dissipation and cooling effects are realized.

In a specific embodiment, the number of the air inlets 82 is greater than 1, and the air inlets are disposed around two or three sides of the fan assembly 5 except for one side of the air outlet end. Fan assembly 5 can be from a plurality of directions inhaled air simultaneously, and it is more smooth and easy to increase fan assembly 5 air inlet by the quantity that increases air intake 82 to further increase fan assembly 5's the biggest air output and air-out wind speed, make radiating effect further improve.

In a specific embodiment, two notches 41 are oppositely arranged at two sides of the transmitting coil 3, and the heat dissipation air duct 74 is arranged along the length direction of the cover plate 7. This embodiment is through setting up like this, can make the setting of heat dissipation wind channel 74 easier, makes the course of working of apron 7 more convenient, can make heat dissipation wind channel 74 have great length simultaneously to run through the electronic equipment and the area that emitting coil 3 generates heat the most seriously, thereby increased and carried out radiating area to emitting coil 3 and electronic product, further improved the radiating effect.

As shown in fig. 4 and fig. 5, in some alternative embodiments, an air collecting opening 72 is further disposed on the cover plate 7, the air collecting opening 72 is disposed on a side of the cover plate 7 facing the base 1 and facing the air outlet end of the fan assembly 5, and the air outlet 71 and the air collecting opening 72 are communicated through an air inlet channel 73. Because receive wind gap 72 and set up towards fan unit 5's air-out end, consequently the air that fan unit 5 blew out can directly get into and receive wind gap 72 in, then blow out from air outlet 71 through inlet air channel 73, can make the air blow out back from fan unit 5 and flow out from casing 8 more fast and smoothly like this, further improved inside and outside air cycle's of casing 8 efficiency to can reach better radiating effect.

In a specific embodiment, the size of the wind receiving opening 72 is larger than that of the wind outlet 71, the wind inlet channel 73 gradually decreases from the wind receiving opening 72 to the wind outlet 71, and the wind inlet channel 73 is disposed toward the wind shielding surface 75. Receive the wind gap 72 great can be better collect the air that fan assembly 5 blew off, and air outlet 71 is less, and inlet air channel 73 is hopper-shaped, and the in-process velocity of flow that the air flows to air outlet 71 from receiving wind gap 72 like this will accelerate to the velocity of flow when can increase the air and blow off from air outlet 71, thereby further improve the radiating effect. Meanwhile, the air inlet channel 73 is arranged at one side of the wind shielding surface 75 in a deviation manner, so that air can directly flow to the outlet direction of the heat dissipation air channel 74 after flowing out of the air outlet 71 through the air inlet channel 73, the probability of air flowing to the direction of the wind shielding surface 75 is reduced, and the heat dissipation efficiency is improved.

As shown in fig. 3, in some optional embodiments, the wireless charger further includes a second magnetic component 6, the second magnetic component 6 is disposed on the base 1 and located in the gap 41, and surrounds the transmitting coil 3 together with the first magnetic component 4, and the thickness of the second magnetic component 6 is smaller than that of the first magnetic component 4. In the formula charger is inhaled to magnetism, set up the purpose of inhaling the subassembly of magnetism and fix a position the electronic equipment who treats to charge. In this embodiment, since the first magnetic component 4 has the gap 41, it may cause insufficient magnetic force and affect the positioning effect, and therefore, the second magnetic component 6 is disposed at the gap 41 in this embodiment to compensate for the insufficient magnetic force at the gap 41, and ensure the positioning effect of the magnetic component on the electronic device. Meanwhile, because the thickness of the second magnetic component 6 is smaller than that of the first magnetic component 4, the second magnetic component 6 does not block the air duct formed by the notch 41, and the air blown out by the fan component 5 can still pass through the notch 41, thereby ensuring the radiating effect of the transmitting coil.

In a specific embodiment, the thickness of the first magnetic attraction component 4 is greater than or equal to 2.5mm and less than or equal to 4 mm. Under the general condition, magnetism is inhaled formula charger and is used thickness to be less than 2.5 mm's magnet, and in this embodiment, in order to guarantee the suction of inhaling the subassembly in the time of forming breach 41, consequently used the thicker first magnetism of thickness to inhale subassembly 4, and the magnet thickness of formula charger is inhaled to the thickness that subassembly 6 was inhaled to the second magnetism can the ordinary magnetism of more than or equal to, so not only can form the wind channel through breach 41 and cool down transmitting coil 3, can also provide bigger magnetic force simultaneously, the location that makes wireless charger treat the electronic product that charges is more stable and accurate.

In one embodiment, the first magnetically attractive assembly 4 is comprised of a plurality of first magnets 42 and the second magnetically attractive assembly 6 is comprised of a plurality of second magnets 61. The magnet assembly consisting of the small magnets can provide better magnetic attraction performance, is not easy to damage, has lower simultaneous processing difficulty, is more convenient to produce and use, and reduces the production cost of the wireless charger.

To sum up, the utility model discloses wireless charger, through inhale subassembly 4 with first magnetism and encircle in transmitting coil setting, and set up breach 41 on first magnetism is inhaled subassembly 4, make and to set up the heat dissipation wind channel 74 in the recess breach 41 on the apron 6, the rethread sets up fan assembly 5 and bloies, blow off the air from the air outlet to heat dissipation wind channel 74, thereby to being surrounded the electronic product of placing on the face of charging of the inside transmitting coil 3 of subassembly 4 and apron 6 is inhaled in first magnetism and the heat dissipation of blowing, wireless charger transmitting coil 3's radiating efficiency in the charging process has been improved, thereby make wireless charger can use high-power transmitting coil 3 to charge, and then improved wireless charger's charging efficiency.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wireless charger, comprising:

a base (1);

the printed circuit board (2) is arranged on the base (1);

the transmitting coil (3) is arranged on the base (1) and is electrically connected with the printed circuit board (2);

the first magnetic attraction component (4) is arranged on the base (1) in a surrounding mode around the transmitting coil (3), and at least two gaps (41) are formed in the edge of the first magnetic attraction component (4);

the fan assembly (5) is arranged on the base (1) and is electrically connected with the printed circuit board (2); and

the cover plate (7) is fixedly arranged on the base (1) and forms a shell (8) with an inner space together with the base (1), and the printed circuit board (2), the transmitting coil (3), the first magnetic suction assembly (4) and the fan assembly (5) are all positioned in the shell (8); wherein

The cover plate (7) is back to one surface of the base (1) and is a charging surface, a heat dissipation air duct (74) is arranged on the charging surface, the heat dissipation air duct (74) is inwards recessed into the notch (41), and an air outlet (71) communicated with an air outlet end of the fan assembly (5) is arranged in the heat dissipation air duct (74).

2. The wireless charger according to claim 1, wherein the heat dissipation air duct (74) is disposed in the middle of the cover plate (7), one end of the heat dissipation air duct (74) extends to the edge of the cover plate (7), and the other end of the heat dissipation air duct (74) forms a wind shielding surface (75).

3. The wireless charger of claim 1, wherein the housing (8) is provided with an air inlet (82) for communicating the inside and the outside of the housing (8), and the air inlet (82) is disposed on the base (1) and/or the cover plate (7) and is adjacent to the air inlet end of the fan assembly (5).

4. The wireless charger according to claim 3, wherein the number of the air inlets (82) is greater than 1, and the air inlets are arranged around two or three sides of the fan assembly (5) except for one side of the air outlet end.

5. The wireless charger according to claim 2, wherein an air collecting opening (72) is further arranged on the cover plate (7), the air collecting opening (72) is arranged on one side, facing the base (1), of the cover plate (7) and is arranged facing an air outlet end of the fan assembly (5), and the air outlet (71) is communicated with the air collecting opening (72) through an air inlet channel (73).

6. The wireless charger according to claim 5, wherein the size of the air collecting opening (72) is larger than that of the air outlet (71), the air inlet channel (73) is gradually reduced from the air collecting opening (72) to the air outlet (71), and the air inlet channel (73) is arranged to be deviated to one side of the wind shielding surface (75).

7. The wireless charger according to claim 2, wherein the two notches (41) are oppositely arranged at two sides of the transmitting coil (3), and the heat dissipation air duct (74) is arranged along the length direction of the cover plate (7).

8. The wireless charger of claim 1, further comprising:

subassembly (6) is inhaled to second magnetism, set up on base (1), and be located in breach (41), with first magnetism inhale subassembly (4) encircle jointly in transmitting coil (3), the thickness that subassembly (6) was inhaled to the second magnetism is less than first magnetism inhales subassembly (4).

9. The wireless charger according to claim 1 or 8, wherein the first magnetic attraction member (4) has a thickness of 2.5mm or more and 4mm or less.

10. The wireless charger of claim 8, wherein the first magnetically attractive member (4) is comprised of a plurality of first magnets (42) and the second magnetically attractive member (6) is comprised of a plurality of second magnets (61).