Magnetic wireless charging mobile power supply with heat dissipation function

Abstract

The utility model relates to the technical field of charging equipment, in particular to a magnetic wireless charging mobile power supply with a heat dissipation function. By arranging the heat dissipation part on the mobile power supply, heat accumulation in the mobile power supply is reduced, the problems that the charging efficiency of an electronic product is low and the service life of the electronic product is affected due to the fact that an existing mobile power supply cannot dissipate heat are effectively solved, the charging efficiency is improved, the charging time is shortened, the electronic product is protected, and the service life of the electronic product is prolonged. The air inlet is a straight-through type air inlet, external cold air directly enters the air inlet cavity between the heating circuit board and the charging coil, efficient cooling is achieved, the straight-through type air inlet design also reduces heat exchange caused by an unnecessary circulation path after the external cold air enters the mobile power supply, the heat dissipation efficiency of the mobile power supply is higher, and the service life of the mobile power supply is prolonged. The air outlets and the air inlets which are designed in a multi-face mode conduct air inlet and air outlet in different directions, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging equipment, and in particular to a magnetic wireless charging mobile power supply with a heat dissipation function. Background Art

[0002] With the advancement and development of electronic products, people's work, life and entertainment are increasingly inseparable from electronic products. However, as people's pace of life and work accelerates, the frequency of use of electronic products is also increasing, and the battery life of electronic products is becoming increasingly insufficient, so mobile power supplies are needed to replenish the power of electronic products.

[0003] However, the existing mobile power supplies have low charging power and slow charging efficiency. If the charging power is increased, a lot of heat will be generated, which is not conducive to improving the charging efficiency and maintaining the performance of electronic products. Especially for wireless charging mobile power supplies, the electronic products will generate more heat when they are in contact with the mobile power supply for charging. The heat cannot be dissipated and accumulates more and more, which can easily cause the electronic products to overheat, seriously affecting the charging efficiency and service life of the electronic products. At the same time, it also seriously limits the charging power, resulting in low charging efficiency and long charging time.

[0004] It should be noted that the information disclosed in the background technology section of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a high-power magnetic wireless charging mobile power supply with independent heat dissipation to address the defects and shortcomings of the prior art that the mobile power supply cannot dissipate heat, which limits the charging efficiency of electronic products and affects the life of electronic products, thereby protecting electronic products and improving charging efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows.

[0007] A magnetic wireless charging mobile power supply with heat dissipation function comprises a shell, a battery cell, a wireless charging coil, a heat dissipation part, and an annular magnetic magnet, wherein the battery cell and the heat dissipation part are respectively located at two ends of the mobile power supply, the wireless charging coil is close to the surface shell of the shell and partially overlaps with the battery cell, the annular magnetic magnet surrounds the wireless charging coil, and the heat dissipation part is located in a space formed by the part of the wireless charging coil that does not overlap with the battery cell and the shell, the heat dissipation part comprises an air inlet, an air inlet cavity, a circuit board through hole, a fan, an air outlet cavity and an air outlet, the annular magnetic magnet and the wireless charging coil and the circuit board constitute the air inlet cavity, the air inlet is located on the side of the shell and directly passes through the air inlet cavity, a gap is provided between the fan and the shell to constitute the air outlet cavity, and an air outlet is provided on the shell at the air outlet cavity.

[0008] As a further technical solution of the utility model, the air inlet and the air outlet are U-shaped channels arranged in an array and are provided on multiple side surfaces of the shell in the heat dissipation area.

[0009] As a further technical solution of the present invention, a first seal is provided between the circuit board and the housing and the wireless charging coil to isolate the air inlet cavity from the air outlet cavity.

[0010] As a further technical solution of the utility model, a second sealing member is provided between the fan and the circuit board.

[0011] As a further technical solution of the present utility model, the first sealing member is provided with a U-shaped groove at the air inlet, and the air inlet is connected with the air inlet cavity through the U-shaped groove.

[0012] As a further technical solution of the utility model, the first sealing member is a sealing silicone ring, and the second sealing member is a sponge.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model sets a heat dissipation part on the mobile power supply to conduct away the heat generated by the circuit board and the charging coil during charging, thereby reducing the heat accumulation inside the mobile power supply, effectively solving the problem that the existing mobile power supply cannot dissipate heat, resulting in low charging efficiency of electronic products and affecting the life of electronic products, thereby improving charging efficiency, reducing charging time, protecting electronic products, and extending the service life of electronic products. In addition, the air inlet of the utility model adopts a straight-through air inlet, and the external cold air directly enters the air inlet cavity between the heated circuit board and the charging coil, which effectively cools down. The straight-through air inlet design also reduces the heat exchange caused by the unnecessary flow path after the external cold air enters the mobile power supply, making the utility model have higher heat dissipation efficiency. The multi-faceted air outlet and air inlet are designed to take in and exhaust air from different directions, thereby improving heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 4 is a cross-sectional view of a magnetic wireless charging mobile power supply with heat dissipation function according to Embodiment 1;

[0017] Figure 2 This is an exploded view of the magnetic wireless charging mobile power supply of Example 1;

[0018] Figure 3 It is a schematic diagram of the air inlet and outlet of the magnetic wireless charging mobile power supply in Example 1.

[0019] Figure identification: 1-fan, 2-circuit board, 3-wireless charging coil, 4-air inlet, 5-air inlet cavity, 6-air outlet, 7-air outlet cavity, 8-through hole, 9-annular magnetic magnet, 10-first seal, 11-second seal, 12-battery core, 13-shell, 131-bottom shell, 132-surface shell, 14-barley paper, 15-sponge. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in combination with the embodiments and drawings. The schematic implementation mode of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model. The terms "front", "side", "rear", "top", "bottom" and the like in the utility model have the following meanings: "front" refers to the surface that contacts the electronic product being charged during charging; "side" refers to the four side surfaces that correspond to the "front", are located around the "front", and are adjacent to the "front". "Rear" refers to the surface that is arranged opposite to the "front".

[0022] Example 1

[0023] This embodiment is a magnetic wireless charging mobile power supply with heat dissipation function, such as Figure 1 As shown, a magnetic wireless charging mobile power supply with heat dissipation function includes a shell 13, a battery core 12, a wireless charging coil 3, a heat dissipation part, and an annular magnetic magnet 9. The battery core 12 and the heat dissipation part are respectively located at two ends of the mobile power supply, the wireless charging coil 3 is close to the surface shell 132 of the shell 13 and partially overlaps with the battery core 12, the annular magnetic magnet 9 surrounds the wireless charging coil 3, and the heat dissipation part is located at the part where the wireless charging coil 3 does not overlap with the battery core 12 and In the space formed by the shell 13, the heat dissipation part includes an air inlet 4, an air inlet cavity 5, a through hole 8 of the circuit board, a fan 1, an air outlet cavity 7 and an air outlet 6. The annular magnetic magnet 9 and the wireless charging coil 3 and the circuit board 2 constitute the air inlet cavity 5. The air inlet 4 is located on the side of the shell 13 and directly passes through the air inlet cavity 5. A gap is provided between the fan 1 and the shell 13 to constitute the air outlet cavity 7. An air outlet 6 is provided on the shell 13 at the air outlet cavity 7.

[0024] This embodiment dissipates the heat generated by the PCB circuit board 2 and the wireless charging coil 3 during charging by setting a heat dissipation unit inside the mobile power supply, thereby reducing the heat accumulation inside the mobile power supply, and effectively solving the problem that the existing mobile power supply cannot dissipate heat, resulting in low charging efficiency of electronic products and affecting the life of electronic products. The charging efficiency is improved, the charging time is reduced, the electronic products are protected, and the service life of the electronic products is extended.

[0025] Figure 2This is an exploded view of the magnetic wireless charging mobile power bank of this embodiment. The air inlet 4 of the utility model adopts a straight-through air inlet 4, and the external cold air directly enters the air inlet cavity 5 between the heated circuit board 2 and the charging coil, which effectively cools down. The straight-through air inlet 4 design also reduces the heat exchange caused by the unnecessary flow path after the external cold air enters the mobile power bank, making the heat dissipation efficiency of the utility model higher. Specifically, the air inlet 4 and the air outlet 6 are U-shaped channels arranged in an array, which are arranged on multiple sides of the shell 13 in the heat dissipation area, as shown in FIG. Figure 3 As shown, in this embodiment, the air inlet 4 and the air outlet 6 are preferably provided on the side of the end portion close to the heat dissipation portion and the side of both sides of the mobile power supply. In some embodiments, a first seal 10 is provided between the circuit board 2 and the housing 13 and the wireless charging coil 3 to isolate the air inlet cavity 5 from the air outlet cavity 7. In order to allow the air inlet 4 to directly pass through the air inlet cavity 5 without passing through bends or obstacles, the first seal 10 is provided with a U-shaped groove at the air inlet 4, and the air inlet 4 is connected to the air inlet cavity 5 through the U-shaped groove. In addition, the first seal 10 can be any component that can achieve sealing, such as a rubber pad, sponge, silicone, etc. In this embodiment, the first seal 10 is a silicone seal ring. In addition, the magnetic wireless charging mobile power supply of the present embodiment includes a bottom shell 131 and a front shell 132. The side and front of the mobile power supply are generally referred to as the front shell 132. The magnetic magnet 9 and the wireless charging coil 3 are arranged on one side of the front shell 132. A sponge 15 is provided between the battery cell 12 and the bottom shell 131 to protect the battery cell 12 from being damaged by sharp or hard parts of the bottom shell 132. A layer of highland barley paper 14 is placed between the other side of the battery cell 12 and the front shell to serve as an insulator.

[0026] In order to better dissipate heat for the circuit board 2 and reduce the transfer of heat inside the device, the PCB circuit board 2 is provided with a through hole 8, and the through hole 8 is connected to the blade space of the fan 1. The fan 1 draws the air at the air inlet 4 through the air inlet 4, enters the air inlet 4 cavity, and then enters the blade space of the fan 1 through the through hole 8 on the PCB circuit board 2, avoiding unnecessary heat transfer caused by excessive detours of wind, and improving the heat dissipation efficiency. It is discharged to the air outlet 6 cavity through the fan 1 and discharged through the air outlet 6.

[0027] For heat dissipation, the air inlet 4 and the air outlet 6 on the side of the shell 13 can be a plurality of arranged small holes, or can be an integral exhaust hole, and the air outlet 6 is arranged in an array on multiple surfaces of the shell 13 of the air outlet 6 cavity to enhance heat dissipation efficiency. The air inlet 4 and the air outlet 6 in this embodiment are array-arranged air inlet channels and air outlet channels, similar to the design of a harmonica, and the straight-through structure makes the air inlet and outlet more direct and smooth, and the heat dissipation effect is better.

[0028] In order to better improve the heat dissipation effect and prevent the cold air in the air inlet 4 cavity from mixing with the hot air in the air outlet 6 cavity to affect the heat dissipation effect, a second seal 11 is provided between the fan 1 and the circuit board 2. Specifically, the second seal 11 can be made of a material with sealing properties such as sponge and rubber, and sponge EVA is preferred in this embodiment.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A magnetic wireless charging mobile power supply with heat dissipation function, comprising a housing, a battery core, a wireless charging coil, a heat dissipation part, and a ring-shaped magnetic magnet, characterized in that: The battery core and the heat dissipation part are respectively located at two ends of the mobile power supply, the wireless charging coil is arranged on the surface shell of the shell and partially overlaps with the battery core, the annular magnetic magnet surrounds the wireless charging coil, and the heat dissipation part is located in the space formed by the part of the wireless charging coil that does not overlap with the battery core and the shell, the heat dissipation part includes an air inlet, an air inlet cavity, a circuit board through hole, a fan, an air outlet cavity and an air outlet, the annular magnetic magnet and the wireless charging coil and the circuit board constitute the air inlet cavity, the air inlet is located on the side of the shell and directly passes through the air inlet cavity, a gap is provided between the fan and the shell to constitute the air outlet cavity, and an air outlet is provided on the shell at the air outlet cavity.

2. The magnetic wireless charging mobile power supply according to claim 1, characterized in that: The air inlet and the air outlet are U-shaped channels arranged in an array and are provided on multiple side surfaces of the shell in the heat dissipation area.

3. The magnetic wireless charging mobile power supply according to claim 2, characterized in that: A first seal is provided between the circuit board, the shell and the wireless charging coil to isolate the air inlet cavity from the air outlet cavity.

4. The magnetic wireless charging mobile power supply according to claim 3, characterized in that: A second sealing member is provided between the fan and the circuit board.

5. The magnetic wireless charging mobile power supply according to claim 4, characterized in that: The first sealing member is provided with a U-shaped groove at the air inlet, and the air inlet is connected with the air inlet cavity through the U-shaped groove.

6. The magnetic wireless charging mobile power supply according to claim 5, characterized in that: The first sealing member is a sealing silicone ring, and the second sealing member is a sponge.

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