CN220139290U - Wireless charger - Google Patents

Abstract

The embodiment of the utility model discloses a wireless charger, which comprises a shell, and an electric energy emission component and a fan which are arranged in the shell. Wherein, be equipped with a plurality of ventilation holes on the casing. The electric energy transmitting assembly comprises a transmitting coil and a magnetic isolation sheet, wherein the transmitting coil is positioned on one side of the magnetic isolation sheet, which is close to the front end of the shell, a first through hole is formed in the transmitting coil, and a second through hole communicated with the first through hole is formed in the magnetic isolation sheet. The fan is located one side that separates the magnetic sheet and keep away from the casing front end to the air outlet is towards second through-hole and first through-hole. From this, utilize the fan can make the air flow through second through-hole, first through-hole and ventilation hole to make the air take away the heat that produces in the charging process when waiting to charge equipment of transmitting coil and casing front end when flowing through, realize utilizing the wind channel of optimization to promote radiating efficiency and reduce the radiating cost.

Description

Wireless charger

Technical Field

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

Background

Wireless charging is becoming more and more popular due to its convenience, and manufacturers of electronic devices such as mobile phones choose to build wireless charging modules in electronic devices. For this reason, the conversion efficiency of wireless charging is lower than that of wired charging, and more power is lost when the same charging power is transmitted, and the loss can cause more heat to be generated, so that the over-temperature control logic of the electronic device is triggered, the charging efficiency is reduced, and the charging speed is further reduced.

Various solutions for solving the problem of heat loss are also presented in the wireless chargers on the market, such as installing semiconductor refrigeration sheets in the wireless chargers, and this solution requires more power to be provided at the input end, which requires a more power adapter, and the cost is greatly increased. In addition, there is a scheme of adding a fan module in the wireless charger, and heat dissipation is usually performed by air-out from the side face of the coil, but the air duct structure of the scheme is not optimized enough, and the heat dissipation effect is poor.

Disclosure of Invention

Therefore, the present utility model is directed to a wireless charger, which improves the heat dissipation effect and reduces the heat dissipation cost by optimizing the heat dissipation air duct.

The embodiment of the utility model provides a wireless charger, which comprises: the front end of the shell is used for bearing equipment to be charged, and a plurality of ventilation holes are formed in the shell; the electric energy emission assembly is arranged in the shell and comprises an emission coil and a magnetic isolation sheet, the emission coil is positioned on one side of the magnetic isolation sheet, which is close to the front end of the shell, a first through hole is formed in the emission coil, a second through hole is formed in the magnetic isolation sheet, and the second through hole is communicated with the first through hole; and the fan is arranged in the shell and is positioned at one side of the magnetism isolating sheet far away from the front end of the shell, and an air outlet of the fan faces the second through hole and the first through hole.

In some embodiments, the wireless charger further comprises: the magnets are arranged at the front end of the shell to adsorb the equipment to be charged.

In some embodiments, the front end of the shell is convexly provided with a plurality of bearing parts, the bearing parts are distributed at intervals on the edge of the shell to form a plurality of gaps, and the bearing parts are internally provided with accommodating cavities; the magnet is arranged in the accommodating cavity.

In some embodiments, the carrier comprises: a sidewall surrounding the magnet; and the top cover is arranged at the front end of the side wall.

In some embodiments, the wireless charger further comprises: and the metal sheet is arranged in an annular structure and is arranged in the shell, and the metal sheet carries the magnet and seals the rear end of the side wall.

In some embodiments, the plurality of vent holes comprises: the air outlet holes are arranged at intervals at the front end of the shell.

In some embodiments, the wireless charger further comprises: the connecting piece is arranged at the center position of the rear end of the shell.

In some embodiments, the plurality of vent holes comprises: the air inlets are arranged at intervals at the rear end of the shell.

In some embodiments, the wireless charger further comprises: the circuit board is arranged in the shell, and an avoidance hole is formed in the circuit board; the fan penetrates through the avoidance hole, and the transmitting coil and the fan are electrically connected to the circuit board.

In some embodiments, the wireless charger further comprises: the power interface is arranged on the shell and is electrically connected with the circuit board.

The embodiment of the utility model provides a wireless charger, which comprises a shell, and an electric energy emission component and a fan which are arranged in the shell. Wherein, be equipped with a plurality of ventilation holes on the casing. The electric energy transmitting assembly comprises a transmitting coil and a magnetic isolation sheet, wherein the transmitting coil is positioned on one side of the magnetic isolation sheet, which is close to the front end of the shell, a first through hole is formed in the transmitting coil, and a second through hole communicated with the first through hole is formed in the magnetic isolation sheet. The fan is located one side that separates the magnetic sheet and keep away from the casing front end to the air outlet is towards second through-hole and first through-hole. From this, utilize the fan can make the air flow through second through-hole, first through-hole and ventilation hole to make the air take away the heat that produces in the charging process when waiting to charge equipment of transmitting coil and casing front end when flowing through, realize utilizing the wind channel of optimization to promote radiating efficiency and reduce the radiating cost.

Drawings

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

fig. 1 is a schematic structural diagram of a wireless charger according to an embodiment of the present utility model;

fig. 2 is an exploded view of a wireless charger according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional view of a wireless charger according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a front housing according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a front housing from another perspective according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a connector according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a rear housing according to an embodiment of the present utility model;

fig. 8 is a schematic structural view of a rear housing at another view angle according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a housing; 11-a front housing; 111-an air outlet hole; 112-a carrier; 1121—a receiving cavity; 1122-sidewalls; 1123-a top cover; 113-gap; 114-a boss; 12-a rear housing; 121-an air inlet hole; 122-leak holes; 2-an electrical energy emitting assembly; 21-a transmitting coil; 211-a first through hole; 22-magnetism isolating sheet; 221-a second via; 3-fans; 4-magnet; 5-metal sheets; a 6-connector; 61-an accommodating groove; 62-cross grooves; 7-a circuit board; 71-avoiding holes; 8-power interface.

Detailed Description

The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in detail. The present utility model will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the utility model.

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

The terms "mounted," "connected," "secured," and the like are to be construed broadly and are not otherwise specifically defined and defined, but rather are used in a generic sense of, for example, being fixedly connected, removably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless the context clearly requires otherwise, the words "comprise," "comprising," and the like throughout the application are to be construed as including but not being exclusive or exhaustive; that is, it is the meaning of "including but not limited to".

In the description of the present utility model, it should 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. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Fig. 1 is a schematic structural diagram of a wireless charger according to an embodiment of the present utility model, fig. 2 is an exploded schematic diagram of a wireless charger according to an embodiment of the present utility model, and fig. 3 is a schematic sectional diagram of a wireless charger according to an embodiment of the present utility model, and the wireless charger is shown in fig. 1, fig. 2 and fig. 3 in combination, and includes a housing 1, an electric energy emitting assembly 2 and a fan 3. The housing 1 comprises a front housing 11 and a rear housing 12, wherein the front housing 11 and the rear housing 12 are mutually matched and detachably connected through threaded connection, and a cavity capable of accommodating various parts is formed. As an alternative embodiment, the front housing 11 and the rear housing 12 may be detachably connected by a snap connection or other connection method, which is not limited herein. It should be noted that, the cross section of the housing 1 is circular, and the front end of the housing 1, that is, the front housing 11, is used for carrying the device to be charged, and the device to be charged includes an electronic device capable of being wirelessly charged, such as a mobile phone, a smart watch, and a smart bracelet. As an alternative embodiment, the cross section of the housing 1 may be provided in other shapes, such as a rectangle, an ellipse, a racetrack, etc., which are not limited herein. It should be further noted that a plurality of ventilation holes through which air can flow are provided in the front case 11 and the rear case 12, that is, the case 1. In one embodiment, the plurality of ventilation holes includes a plurality of air outlet holes 111 on the front housing 11 and a plurality of air inlet holes 121 on the rear housing 12.

Further, as shown in fig. 2 and 3, the power transmitting assembly 2 is disposed in a cavity formed by the front housing 11 and the rear housing 12, that is, disposed in the housing 1, for wirelessly charging the device to be charged. Wherein the power transmitting assembly 2 comprises a transmitting coil 21 and a magnetism isolating sheet 22, the transmitting coil 21 is positioned on one side of the magnetism isolating sheet 22 near the front end of the housing 1, i.e. on the side facing the front housing 11. The transmitting coil 21 is provided in a circular shape corresponding to the circular-section housing 1, and a first through hole 211 is formed at an intermediate position. It should be further noted that the magnetism blocking sheet 22 is provided in a circular shape corresponding to the circular transmitting coil 21, and a second through hole 221 communicating with the first through hole 211 is provided in the middle position. In order to secure the magnetism isolating effect of the magnetism isolating sheet 22, the size of the second through hole 221 is smaller than or equal to the first through hole 211. On this basis, in order to ensure that a stable air flow path is formed, the size of the second through hole 221 is equal to that of the first through hole 211, and at the same time, the first through hole 211 and the second through hole 221 are aligned with the vent holes provided in the housing 1, that is, the first through hole 211 is aligned with the plurality of air outlet holes 111 and the second through hole 221 is aligned with the plurality of air inlet holes 121. As an alternative embodiment, the transmitting coil 21 and the magnetism isolating sheet 22 may be provided in other shapes such as rectangle, oval, racetrack, etc., which are not limited herein.

Further, as shown in fig. 2 and 3, the fan 3 is disposed in a cavity formed by the front case 11 and the rear case 12, that is, in the case 1. Specifically, the fan 3 is a silent axial flow fan, and is located on the side of the magnetism blocking sheet 22 away from the front end of the housing 1, that is, away from the front housing 11. Meanwhile, the air outlet of the fan 3 faces the second through hole 221 and the first through hole 211, i.e., faces the air outlet hole 111 of the front case 11. It will be readily appreciated that the inlet of the fan 3 is directed towards the inlet opening 121 in the rear housing 12. Therefore, when the fan 3 starts to work, air can flow through the second through holes 221, the first through holes 211 and the ventilation holes, so that the air takes away heat generated in the charging process when flowing through the transmitting coil 21 and the to-be-charged equipment at the front end of the shell 1, and the heat dissipation efficiency of the wireless charger is improved and the heat dissipation cost of the wireless charger is reduced by utilizing the optimized air channel.

As shown in connection with fig. 2 and 3, in one embodiment, the wireless charger further includes a plurality of magnets 4. Specifically, a plurality of magnets 4 are provided at the front end of the housing 1, that is, on the front housing 11. It is easy to understand that when the user places the device to be charged on the wireless charger, the wireless charger can adsorb the device to be charged through the magnet 4 to ensure that the wireless charging can be smoothly performed. On the one hand, the magnet 4 can ensure that the wireless charger can be adsorbed at the preset position of the equipment to be charged, namely, the magnet 4 plays a role in positioning, so that the transmitting coil 21 can be ensured to be aligned with the receiving coil arranged in the equipment to be charged, and further, the charging efficiency of the wireless charger can be ensured not to be reduced due to coil offset. On the other hand, the magnet 4 also plays a role in adsorbing and fixing the equipment to be charged. For example, when the wireless charger is an on-vehicle wireless charger, the wireless charger is often fixed at the air outlet port of the air conditioner of the automobile, and the front housing 11 contacting with the device to be charged is usually in a state almost perpendicular to the ground, so that the device to be charged can be adsorbed and fixed by the magnet 4, so as to avoid the device to be charged from falling.

As shown in fig. 1 and 3, in one embodiment, the front end of the housing 1, that is, the front housing 11, is formed with a plurality of bearing portions 112 protruding therefrom. Further, a plurality of bearing parts 112 are spaced apart from the edge of the front case 11, thereby forming a plurality of gaps 113. Fig. 4 is a schematic structural view of a front housing according to an embodiment of the present utility model, and, as shown in fig. 4, the bearing portion 112 has a receiving cavity 1121 therein, and the structure of the receiving cavity 1121 matches with that of the magnet 4. It is easy to understand that the number of the carrying parts 112 is matched with that of the magnets 4, and the plurality of magnets 4 are respectively disposed in the accommodating cavities 1121 of the carrying parts 112. In this embodiment, the number of the magnets 4 and the carrying portions 112 is five, and as an alternative embodiment, the number of the magnets 4 and the carrying portions 112 may be two, three, four, or other numbers. In the present embodiment, the wireless charger contacts and carries the device to be charged through the carrying portion 112, and is attracted by the magnet 4.

As shown in connection with fig. 2, 3 and 4, in one embodiment, the carrier 112 includes a side wall 1122 and a top cover 1123. Specifically, the side wall 1122 surrounds the magnet 4, and a receiving chamber 1121 for receiving the magnet 4 is formed. Further, a top cover 1123 is provided to the front end of the side wall 1122, thereby closing the front end of the side wall 1122. It will be readily appreciated that the top cover 1123 is raised relative to the side wall 1122 and that the wireless charger is in contact with the device to be charged through the top cover 1123. In the present embodiment, the front end of the side wall 1122 is concavely formed with a groove, and the top cover 1123 is embedded in the groove to locate the front end of the side wall 1122. The top cover 1123 in the present embodiment is supported by a rubber material to avoid damage to the device to be charged when contacting the device to be charged. In the present embodiment, the bearing portion 112 is a split structure, and as an alternative embodiment, the bearing portion 112 may be a single structure.

As shown in connection with fig. 2 and 3, in one embodiment, the wireless charger further comprises a metal sheet 5. Specifically, the metal sheet 5 is provided in a ring-shaped structure and is disposed in a cavity formed by the cooperation of the front case 11 and the rear case 12, that is, in the case 1. The metal sheet 5 is sized to match the front case 11 so as to be disposed along the edge of the front case 11. Further, the metal sheet 5 carries the magnet 4 and closes the rear end of the side wall 1122, so that the magnet 4 can be fixed in the accommodating chamber 1121 in cooperation with the top cover 1123.

Fig. 5 is a schematic structural view of another view of the front housing according to the embodiment of the present utility model, and as shown in fig. 5, an annular protrusion 114 is disposed on a side of the front housing 11 facing the rear housing 12. The metal sheet 5 is disposed around the outside of the protruding portion 114, and the transmitting coil 21 is disposed inside the protruding portion 114. It should be further noted that the size of the magnetism isolating sheet 22 is slightly larger than that of the transmitting coil 21, and when the transmitting coil 21 is located inside the protruding portion 114, the edge of the magnetism isolating sheet 22 is aligned with the end face of the protruding portion 114. Thus, by providing the boss 14, a certain limiting and separating effect is provided for the transmitting coil 21.

As shown in fig. 1 and 4, in one embodiment, the air outlet 111 is elongated and the center of the front housing 11 is gradually increased outwards, and the plurality of air outlets 111 are formed in a petal shape at intervals. It should be noted that, the air outlet holes 111 are all located in the area surrounded by the bearing portion 112. When the wireless charger starts to operate, the fan 3 is started, heat generated by the transmitting coil 21 is taken out from the air outlet 111 by flowing air, and the flowing air can flow out through the gap 113 and finally discharge the heat to realize heat dissipation. Meanwhile, heat generated by the device to be charged during charging can also flow out from flowing air through the gap 113 to realize heat dissipation.

As shown in connection with fig. 1, 2 and 3, in one embodiment, the wireless charger further comprises a connector 6. Specifically, the connection member 6 is provided at a central position of the rear end of the housing 1. It will be readily appreciated that the wireless charger may be secured in a predetermined position by the connector 6 in order to prevent wireless charging of the device to be charged. The wireless charger is an on-vehicle wireless charger, and can be fixed at the air outlet channel opening of the automobile air conditioner through an air outlet clamp (not shown in the figure), and the air outlet clamp is provided with a round head connecting column. Fig. 6 is a schematic structural view of a connector according to an embodiment of the present utility model, and as shown in fig. 6, the connector 6 is correspondingly configured as a bolt having a receiving groove 61 in the middle so as to receive a round head connecting post of an air outlet clip through the receiving groove 61. Further, the connecting piece 6 is further provided with a cross groove 62, so that the connecting piece 6 deforms inwards when a corresponding nut (not shown in the figure) is screwed down, thereby realizing the fastening function on the round-head connecting column.

Fig. 7 is a schematic structural view of a rear housing according to an embodiment of the present utility model, and fig. 8 is a schematic structural view of another view of a rear housing according to an embodiment of the present utility model, and in combination with fig. 7 and fig. 8, the rear housing 12 is configured in a basin-like structure in one embodiment. Further, the air inlet holes 121 are elongated and the center of the front housing 11 is gradually enlarged outwards, and the plurality of air inlet holes 121 are formed in a petal shape at intervals. The air inlet holes 121 are all disposed around the mounting position of the connector 6.

As shown in connection with fig. 2 and 3, in one embodiment, the wireless charger further includes a circuit board 7, and the transmitting coil 21 and the fan 3 are electrically connected to the circuit board 7. The circuit board 7 is arranged in a cavity formed by the cooperation of the front housing 11 and the rear housing 12, namely in the housing 1. Further, as shown in fig. 2, the circuit board 7 is provided with a relief hole 71. It should be noted that, the shape and size of the avoidance hole 71 are matched with those of the fan 3, so that the fan 3 can be fixed in the housing 1 through the avoidance hole 71.

As shown in connection with fig. 1 and 2, in one embodiment, the wireless charger further comprises a power interface 8. The power interface 8 is disposed on the rear housing 12, i.e., on the housing 1. Specifically, as shown in fig. 7 and 8, the rear case 12 is provided with a drain hole 122 to expose the power supply interface 8. Further, the power interface 8 is electrically connected to the circuit board 7. The wireless charger is connected with an external power supply through a power interface 8 to realize power supply to the transmitting coil 21 and the fan 3.

The embodiment of the utility model provides a wireless charger, which comprises a shell, and an electric energy emission component and a fan which are arranged in the shell. Wherein, be equipped with a plurality of ventilation holes on the casing. The electric energy transmitting assembly comprises a transmitting coil and a magnetic isolation sheet, wherein the transmitting coil is positioned on one side of the magnetic isolation sheet, which is close to the front end of the shell, a first through hole is formed in the transmitting coil, and a second through hole communicated with the first through hole is formed in the magnetic isolation sheet. The fan is located one side that separates the magnetic sheet and keep away from the casing front end to the air outlet is towards second through-hole and first through-hole. From this, utilize the fan can make the air flow through second through-hole, first through-hole and ventilation hole to make the air take away the heat that produces in the charging process when waiting to charge equipment of transmitting coil and casing front end when flowing through, realize utilizing the wind channel of optimization to promote radiating efficiency and reduce the radiating cost.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A wireless charger, the wireless charger comprising:

the charging device comprises a shell (1), wherein the front end of the shell (1) is used for bearing equipment to be charged, and a plurality of ventilation holes are formed in the shell (1);

the electric energy emission assembly (2), the electric energy emission assembly (2) is arranged in the shell (1) and comprises an emission coil (21) and a magnetic isolation sheet (22), the emission coil (21) is positioned on one side, close to the front end of the shell (1), of the magnetic isolation sheet (22), a first through hole (211) is formed in the emission coil (21), a second through hole (221) is formed in the magnetic isolation sheet (22), and the second through hole (221) is communicated with the first through hole (211); and

the fan (3) is arranged in the shell (1) and is positioned on one side, far away from the front end of the shell (1), of the magnetic isolation sheet (22), and an air outlet of the fan (3) faces the second through hole (221) and the first through hole (211).

2. The wireless charger of claim 1, wherein the wireless charger further comprises:

the magnets (4) are arranged at the front end of the shell (1) so as to adsorb the equipment to be charged.

3. The wireless charger according to claim 2, wherein a plurality of bearing parts (112) are formed at the front end of the housing (1) in a protruding manner, the plurality of bearing parts (112) are distributed at intervals on the edge of the housing (1) to form a plurality of gaps (113), and a containing cavity (1121) is formed in the bearing part (112);

the magnet (4) is disposed in the accommodation chamber (1121).

4. A wireless charger according to claim 3, wherein the carrier (112) comprises:

-a side wall (1122), the side wall (1122) surrounding the magnet (4); and

and a top cover (1123), wherein the top cover (1123) is covered on the front end of the side wall (1122).

5. The wireless charger of claim 4, further comprising:

and a metal sheet (5), wherein the metal sheet (5) is arranged in an annular structure and is arranged in the shell (1), and the metal sheet (5) carries the magnet (4) and closes the rear end of the side wall (1122).

6. A wireless charger according to claim 1 or 3, wherein the plurality of vents comprises:

the air outlet holes (111) are formed in the front end of the shell (1) at intervals.

7. The wireless charger of claim 1, wherein the wireless charger further comprises:

the connecting piece (6), connecting piece (6) set up in the central point department of casing (1) rear end.

8. The wireless charger of claim 1 or 7, wherein the plurality of vent holes comprises:

and the air inlets (121) are arranged at the rear end of the shell (1) at intervals.

9. The wireless charger of claim 1, wherein the wireless charger further comprises:

the circuit board (7), the circuit board (7) is arranged in the shell (1), and the circuit board (7) is provided with an avoidance hole (71);

wherein, the fan (3) passes through the avoidance hole (71), and the transmitting coil (21) and the fan (3) are electrically connected with the circuit board (7).

10. The wireless charger of claim 9, wherein the wireless charger further comprises:

and the power interface (8) is arranged on the shell (1) and is electrically connected with the circuit board (7).