Air-cooled heat dissipation wireless charging structure and portable energy storage power supply

Abstract

The invention provides an air-cooled heat dissipation wireless charging structure and a portable energy storage power supply. The air-cooled heat dissipation wireless charging structure comprises a shell, a wireless charging PCBA and a wireless charging coil, the shell is provided with an air inlet, an air outlet, a ventilation opening and heat dissipation holes. The air inlet is opposite to the air outlet, and an air supply flow channel is formed on the inner side of the shell; the wireless charging PCBA and the wireless charging coil are electrically connected with each other and are separately mounted on the outer side of the shell; the ventilation opening is opposite to the position of the wireless charging PCBA, the heat dissipation hole is opposite to the position of the wireless charging coil, and the ventilation opening and the heat dissipation hole are communicated with the air supply flow channel, so that heat generated by the wireless charging PCBA can be transmitted to the air supply flow channel through the ventilation opening, and heat generated by the wireless charging coil can be transmitted to the air supply flow channel through the heat dissipation hole. And finally, air flow in the air supply flow channel can carry heat to be quickly dissipated, so that the condition that the wireless charging coil and the wireless charging PCBA are overheated and aged is effectively slowed down.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wireless charging equipment, and in particular to an air-cooled wireless charging structure and a portable energy storage power supply. Background Art

[0002] With the popularity of various mobile smart terminals, battery anxiety has gradually become a problem for people. In order to meet the charging requirements of various terminals at the same time, people have developed wireless chargers. Since wireless chargers use coils through electromagnetic induction, they will generate a lot of heat during use, affecting the safety of use. In this regard, some manufacturers have made further research and development.

[0003] For example, Chinese patent document CN114629201A discloses a wireless charger, including an upper cover and a lower shell. After the upper cover and the lower shell are assembled, two independent areas in a accommodating cavity are formed in a side-by-side direction and interconnected with each other; semiconductor refrigeration plates and heat sinks are arranged in area I, and the semiconductor refrigeration plates are arranged in a direction with their cooling surface facing the upper cover and their heating surface facing the heat sink; a blowing device is arranged in area II and blows air in the direction of area I, and an air inlet corresponding to the blowing device is arranged on the upper cover or the lower shell on the side where area II is located; an air outlet is arranged on the shell located in area I, which is formed by assembling the upper cover and the lower shell, and a closed shell is formed after the upper cover and the lower shell are assembled.

[0004] However, the design of the above wireless charger has the following problems:

[0005] Although the above-mentioned wireless charger can dissipate heat through the air outlet by blowing the heat emitted by the semiconductor cooling sheet and the heat sink, due to the compact structure design of the wireless charging transmitting coil and the integrated circuit board, the heat generated by the wireless charging transmitting coil is not only easy to accumulate, but also easy to act on the integrated circuit board, causing the wireless charging transmitting coil and the integrated circuit board to overheat. This will cause the wireless charger to work in a fluctuating manner, and the wireless charging transmitting coil and the integrated circuit board will also be more prone to aging. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a wireless charging structure and a portable energy storage power supply with better heat dissipation effect and more stable use.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A wind-cooled and heat-dissipating wireless charging structure comprises a shell, a wireless charging PCBA and a wireless charging coil; the shell is respectively provided with an air inlet, an air outlet, an air vent and a heat dissipation hole; the air inlet is opposite to the air outlet, and an air supply channel is formed on the inner side of the shell; the wireless charging PCBA and the wireless charging coil are electrically connected to each other and are separately installed on the outer side of the shell; the air vent is opposite to the wireless charging PCBA, the heat dissipation hole is opposite to the wireless charging coil, and the air vent and the heat dissipation hole are both connected to the air supply channel.

[0009] In one of the embodiments, a heat diffusion groove is provided on the outer side of the shell; the wireless charging PCBA is installed in the heat diffusion groove, and a heat dissipation gap is formed between the wireless charging PCBA and the bottom of the heat diffusion groove; the air vent is provided at the bottom of the heat diffusion groove, and the wireless charging PCBA is opposite to the air vent through the heat dissipation gap.

[0010] In one of the embodiments, a plurality of support columns are provided in the heat diffusion groove, and the wireless charging PCBA is arranged on the plurality of support columns; the plurality of support columns are distributed around the air vent and form the heat dissipation gap in the middle; connecting gaps are respectively formed between two adjacent support columns, and each connecting gap is respectively connected to the heat diffusion groove.

[0011] In one of the embodiments, a cooling fan is installed on the inner side of the shell, and the air inlet is connected to the air outlet through the cooling fan.

[0012] In one of the embodiments, the cooling fan is disposed close to the air outlet, and the air inlet side of the cooling fan faces the air inlet; the air outlet side of the cooling fan is opposite to the air outlet.

[0013] In one embodiment, the mounting surface of the wireless charging PCBA is used to mount a plurality of electronic components, and the mounting surface is disposed toward the vent.

[0014] In one of the embodiments, a mounting groove is opened on the outer side of the shell, and the number of the heat dissipation holes is multiple, and the multiple heat dissipation holes are distributed in a matrix at the bottom of the mounting groove; the wireless charging coil is embedded in the mounting groove.

[0015] In one of the embodiments, the air-cooled wireless charging structure also includes a charging panel, a wireless charging area is provided on the charging panel, and the wireless charging area is used to place the device to be charged; the charging panel cover is arranged on the outer side of the shell, and the wireless charging area is against the wireless charging coil.

[0016] In one of the embodiments, the air-cooled wireless charging structure also includes an inverter; the inverter is arranged on the inner side of the shell and located on the air supply channel; the wireless charging coil is electrically connected to the inverter, and the inverter is used to be electrically connected to a power source.

[0017] A portable energy storage power supply comprises the air-cooling and heat dissipation wireless charging structure of any of the above embodiments.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] The above-mentioned air-cooled heat dissipation wireless charging structure can reduce the heat generated by the wireless charging coil during charging and transferred to the wireless charging PCBA because the wireless charging PCBA and the wireless charging coil are separately installed on the outside of the shell. At the same time, since the air inlet and the air outlet are relatively positioned to form an air supply channel, and the air supply channel is relatively positioned to the wireless charging PCBA through the air vent, and the air supply channel is relatively positioned to the wireless charging coil through the heat dissipation hole, the heat generated by the wireless charging PCBA can be transferred to the air supply channel through the air vent, and the heat generated by the wireless charging coil can be transferred to the air supply channel through the heat dissipation hole, so that the airflow in the air supply channel can carry the heat and dissipate it quickly, and finally effectively slow down the overheating and aging of the wireless charging coil and the wireless charging PCBA, and ensure that the portable energy storage power supply works more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of an air-cooled wireless charging structure according to an embodiment of the present disclosure;

[0022] Figure 2 for Figure 1 The cross-sectional structural diagram of the air-cooled heat dissipation wireless charging structure shown;

[0023] Figure 3 for Figure 1 A partial cross-sectional view of the air-cooled wireless charging structure shown;

[0024] Figure 4 for Figure 1 A partial enlarged view of the middle A;

[0025] Figure 5 It is a schematic structural diagram of a portable energy storage power supply according to another embodiment of the present disclosure.

[0026] Figure numerals: 10, portable energy storage power supply; 100, air-cooled wireless charging structure; 110, shell; 1110, air inlet; 1120, air outlet; 1130, air vent; 1140, heat dissipation hole; 1150, heat diffusion groove; 1151, cooling fan; 1160, support column; 1170, mounting groove; 1180, arc groove; 1181, magnetic block; 120, wireless charging PCBA; 130, wireless charging coil; 11b, heat dissipation gap; 1010, wire threading groove; 1011, wire harness block; 140, charging panel; 1410, wireless charging area; 150, inverter; 200, power supply. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0031] like Figure 1 and Figure 2As shown, an air-cooled wireless charging structure 100 of an embodiment includes a housing 110, a wireless charging PCBA 120 and a wireless charging coil 130; the housing 110 is respectively provided with an air inlet 1110, an air outlet 1120, an air vent 1130 and a heat dissipation hole 1140; the air inlet 1110 is opposite to the air outlet 1120, and an air supply channel is formed on the inner side of the housing 110; the wireless charging PCBA 120 and the wireless charging coil 130 are electrically connected to each other and are separately installed on the outer side of the housing 110; the air vent 1130 is opposite to the wireless charging PCBA 120, the heat dissipation hole 1140 is opposite to the wireless charging coil 130, and the air vent 1130 and the heat dissipation hole 1140 are both connected to the air supply channel.

[0032] It can be understood that, compared with the prior art, the above-mentioned air-cooled heat dissipation wireless charging structure 100 can reduce the heat generated by the wireless charging coil 130 during charging from being transferred to the wireless charging PCBA 120 because the wireless charging PCBA 120 and the wireless charging coil 130 are separately installed on the outside of the housing 110. At the same time, since the air inlet 1110 and the air outlet 1120 are relatively located to form an air supply channel, and the air supply channel is relatively located to the wireless charging PCBA 120 through the air vent 1130, and the air supply channel is relatively located to the wireless charging coil 130 through the heat dissipation hole 1140, the heat generated by the wireless charging PCBA 120 can be transferred to the air supply channel through the air vent 1130, and the heat generated by the wireless charging coil 130 can be transferred to the air supply channel through the heat dissipation hole 1140, so that the airflow in the air supply channel can carry the heat and dissipate it quickly, and finally effectively slow down the overheating and aging of the wireless charging coil 130 and the wireless charging PCBA 120, and ensure that the portable energy storage power supply works more stably.

[0033] Combination Figure 2 and Figure 3As shown, in one embodiment, a heat diffusion groove 1150 is provided on the outer side of the housing 110; the wireless charging PCBA 120 is installed in the heat diffusion groove 1150, and a heat dissipation gap 11b is formed between the wireless charging PCBA 120 and the bottom of the heat diffusion groove 1150; the air vent 1130 is provided at the bottom of the heat diffusion groove 1150, and the wireless charging PCBA 120 is opposite to the air vent 1130 through the heat dissipation gap 11b. It can be understood that by providing the heat dissipation gap 11b between the wireless charging PCBA 120 and the bottom of the heat diffusion groove 1150, the wireless charging PCBA 120 can be separated from the bottom of the heat diffusion groove 1150, thereby reducing the accumulation of heat between the wireless charging PCBA 120 and the heat diffusion groove 1150, that is, the heat can be dissipated in the heat dissipation gap 11b. At the same time, since the wireless charging PCBA 120 is opposite to the vent 1130 through the heat dissipation gap 11b, the heat in the heat dissipation gap 11b can enter the air supply channel through the vent 1130 and be quickly discharged.

[0034] Combination Figure 3 As shown, in this embodiment, a plurality of support columns 1160 are provided in the heat diffusion groove 1150, and the wireless charging PCBA 120 is provided on the plurality of support columns 1160; the plurality of support columns 1160 are distributed around the vent 1130, and a heat dissipation gap 11b is formed in the middle; a connecting gap is formed between two adjacent support columns 1160, and each connecting gap is connected to the heat diffusion groove 1150. It can be understood that by providing the wireless charging PCBA 120 on a plurality of support columns 1160, the wireless charging PCBA 120 can be installed stably. At the same time, since a connecting gap is provided between two adjacent support columns 1160, the heat diffusion groove 1150 is connected through the connecting gap, so that the heat on the wireless charging PCBA 120 can be dispersed to the heat diffusion groove 1150 and then diffused to a larger range, further avoiding heat accumulation and improving the heat dissipation rate.

[0035] Combination Figure 1 and Figure 2 As shown, in one embodiment, a cooling fan 1151 is installed inside the housing 110, and the air inlet 1110 is connected to the air outlet 1120 through the cooling fan 1151. It can be understood that since the air inlet 1110 is connected to the air outlet 1120 through the cooling fan 1151, the flow rate of the air flow in the air supply channel can be increased by increasing the rotation speed of the cooling fan 1151, thereby further improving the heat dissipation efficiency of the air-cooled heat dissipation wireless charging structure 100.

[0036] Combination Figure 2As shown, in this embodiment, the heat dissipation fan 1151 is arranged close to the air outlet 1120, and the air inlet side of the heat dissipation fan 1151 faces the air inlet 1110; the air outlet side of the heat dissipation fan 1151 is opposite to the air outlet 1120. It can be understood that since the heat dissipation fan 1151 is arranged close to the air outlet 1120, by making the air inlet side of the heat dissipation fan 1151 face the air inlet 1110, the air flow entering the inner side of the housing 110 from the air inlet 1110 can be guided to the air outlet 1120 by the heat dissipation fan 1151, and because the air outlet side of the heat dissipation fan 1151 faces the air outlet 1120, the air flow can be quickly discharged from the air outlet 1120 through the air outlet side of the heat dissipation fan 1151.

[0037] In one embodiment, the mounting surface of the wireless charging PCBA 120 is used to mount a plurality of electronic components, and the mounting surface is disposed toward the vent 1130. It can be understood that by disposing the mounting surface of the wireless charging PCBA 120 toward the vent 1130, the heat generated by the plurality of electronic components on the mounting surface can be quickly dissipated out of the vent 1130 through the vent 1130, and then quickly discharged out through the air supply channel and the air outlet 1120. Specifically, the electronic components may include capacitors, resistors, etc., which are not limited here.

[0038] Combination Figure 1 and Figure 3 As shown, in one embodiment, a mounting groove 1170 is provided on the outer side of the housing 110, and a plurality of heat dissipation holes 1140 are provided, and the plurality of heat dissipation holes 1140 are distributed in a matrix at the bottom of the mounting groove 1170; the wireless charging coil 130 is embedded in the mounting groove 1170. It can be understood that by embedding the wireless charging coil 130 in the mounting groove 1170, the wireless charging coil 130 can be tightly connected to the housing 110, and because the bottom of the mounting groove 1170 is provided with a plurality of heat dissipation holes 1140 distributed in a matrix, the heat generated by the wireless charging coil 130 can be dissipated to the air supply channel through the plurality of heat dissipation holes 1140, and the airflow in the air supply channel can carry the heat generated by the wireless charging coil 130 to the outside, so that the wireless charging coil 130 can quickly dissipate heat.

[0039] Combination Figure 1 and Figure 4As shown, in one embodiment, the wireless charging PCBA 120 is connected to the wireless charging coil 130 through a flexible flat cable, thereby realizing electrical connection between the wireless charging PCBA 120 and the wireless charging coil 130. In this embodiment, a threading groove 1010 is further provided on the outer side of the housing 110, and the installation groove 1170 is connected to the heat diffusion groove 1150 through the threading groove 1010, so that the flexible flat cable can pass through, thereby facilitating the separate installation of the wireless charging PCBA 120 and the wireless charging coil 130. Specifically, a cable tie block 1011 is protruding from the notch position of the threading groove 1010, and the cable tie block 1011 can prevent the flexible flat cable from escaping from the threading groove 1010.

[0040] Combination Figure 3 and Figure 4 As shown, in one embodiment, an arc groove 1180 is opened on the outer side of the housing 110 along the periphery of the mounting groove 1170, and a magnetic block 1181 is embedded in the arc groove 1180. It can be understood that the wireless charging coil 130 is attracted by the magnetic block 1181, and the position of the wireless charging coil 130 is further fixed, so that the wireless charging coil 130 is more securely installed in the mounting groove 1170.

[0041] Combination Figure 1 As shown, in one embodiment, the air-cooled wireless charging structure 100 further includes a charging panel 140, on which a wireless charging area 1410 is provided, and the wireless charging area 1410 is used to place the device to be charged; the charging panel 140 is covered on the outside of the housing 110, and the wireless charging area 1410 is abutted against the wireless charging coil 130. It can be understood that by covering the charging panel 140 on the outside of the housing 110, the wireless charging coil 130 is abutted and fixed by the wireless charging area 1410, so that the wireless charging coil 130 is tightly connected to the housing 110, and when the device to be charged is placed on the wireless charging area 1410, the wireless charging coil 130 can be used to power the device to be charged through the wireless charging area 1410. Among them, the device to be charged can be a mobile phone, a watch, a tablet, etc., of course, it is not limited here.

[0042] Combination Figure 2 and Figure 5As shown, in one embodiment, the air-cooled wireless charging structure 100 further includes an inverter 150; the inverter 150 is arranged on the inner side of the housing 110 and is located on the air supply channel; the wireless charging coil 130 is electrically connected to the inverter 150, and the inverter 150 is used to be electrically connected to the power supply 200. It can be understood that by making the inverter 150 electrically connected to the power supply 200, since the wireless charging coil 130 is electrically connected to the inverter 150, the direct current output by the power supply 200 can be converted into alternating current through the inverter 150, and the wireless charging coil 130 is turned on by the alternating current, so as to wirelessly charge the external device to be charged. At the same time, by arranging the inverter 150 on the inner side of the housing 110, the inverter 150 is located between the air inlet 1110 and the air outlet 1120, that is, on the air supply channel, so that the inverter 150 can be further cooled by the airflow in the air supply channel.

[0043] Combination Figure 5 As shown, in this embodiment, the power source 200 is a battery module. Of course, this is not limited here. In other embodiments, the power source can also be a generator, a battery panel, etc., and those skilled in the art can select according to their needs.

[0044] In one embodiment, the electrical connection may be in various forms such as wired connection, wireless connection, etc. It is understood that the wired connection may be a wire connection or a circuit board connection, etc., and the wireless connection may be a Bluetooth connection or a WIFI (Wireless Fidelity) connection, etc. The specific connection method is not limited, and those skilled in the art may also adjust it as needed.

[0045] like Figure 1 and Figure 5 As shown, the present disclosure also provides a portable energy storage power supply 10, including the air-cooled heat dissipation wireless charging structure 100 of any of the above-mentioned embodiments. It can be understood that by applying the air-cooled heat dissipation wireless charging structure 100 of the present disclosure to the portable energy storage power supply 10, and by installing the wireless charging PCBA 120 and the wireless charging coil 130 separately, it is possible to avoid the heat generated on the wireless charging PCBA 120 and the heat generated on the wireless charging coil 130 from interfering with each other. At the same time, the heat generated by the wireless charging PCBA 120 is transferred to the air supply channel through the air vent 1130, and the heat generated by the wireless charging coil 130 is transferred to the air supply channel through the heat dissipation hole 1140, so that the airflow in the air supply channel can carry the heat and dissipate it quickly, and finally effectively slow down the overheating and aging of the wireless charging coil 130 and the wireless charging PCBA 120, and ensure that the portable energy storage power supply 10 works more stably.

[0046] Compared with the prior art, the present invention has at least the following advantages:

[0047] The above-mentioned air-cooled heat dissipation wireless charging structure 100 can reduce the heat generated by the wireless charging coil 130 during charging and transferred to the wireless charging PCBA 120 because the wireless charging PCBA 120 and the wireless charging coil 130 are separately installed on the outside of the housing 110. At the same time, since the air inlet 1110 and the air outlet 1120 are relatively located to form an air supply channel, and the air supply channel is relatively located to the wireless charging PCBA 120 through the air vent 1130, and the air supply channel is relatively located to the wireless charging coil 130 through the heat dissipation hole 1140, the heat generated by the wireless charging PCBA 120 can be transferred to the air supply channel through the air vent 1130, and the heat generated by the wireless charging coil 130 can be transferred to the air supply channel through the heat dissipation hole 1140, so that the airflow in the air supply channel can carry the heat and quickly dissipate it, and finally effectively slow down the overheating and aging of the wireless charging coil 130 and the wireless charging PCBA 120, and ensure that the portable energy storage power supply works more stably.

[0048] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. An air-cooled wireless charging structure, characterized in that: It includes a shell, a wireless charging PCBA and a wireless charging coil; the shell is respectively provided with an air inlet, an air outlet, an air vent and a heat dissipation hole; the air inlet is opposite to the air outlet, and an air supply channel is formed on the inner side of the shell; the wireless charging PCBA and the wireless charging coil are electrically connected to each other and are separately installed on the outer side of the shell; the air vent is opposite to the wireless charging PCBA, the heat dissipation hole is opposite to the wireless charging coil, and the air vent and the heat dissipation hole are both connected to the air supply channel.

2. The air-cooled wireless charging structure according to claim 1, characterized in that: A heat diffusion groove is provided on the outer side of the shell; the wireless charging PCBA is installed in the heat diffusion groove, and a heat dissipation gap is formed between the wireless charging PCBA and the bottom of the heat diffusion groove; the air vent is provided at the bottom of the heat diffusion groove, and the wireless charging PCBA is opposite to the air vent through the heat dissipation gap.

3. The air-cooled wireless charging structure according to claim 2, characterized in that: A plurality of support columns are arranged in the heat diffusion groove, and the wireless charging PCBA is arranged on the plurality of support columns; the plurality of support columns are distributed around the air vent and form the heat dissipation gap in the middle; a connecting gap is formed between two adjacent support columns, and each connecting gap is connected to the heat diffusion groove.

4. The air-cooled wireless charging structure according to claim 1, characterized in that: A cooling fan is installed inside the shell, and the air inlet is connected to the air outlet through the cooling fan.

5. The air-cooled wireless charging structure according to claim 4, characterized in that: The heat dissipation fan is arranged close to the air outlet, and the air inlet side of the heat dissipation fan faces the air inlet; the air outlet side of the heat dissipation fan is opposite to the air outlet.

6. The air-cooled wireless charging structure according to claim 1, characterized in that: The mounting surface of the wireless charging PCBA is used to mount a plurality of electronic components, and the mounting surface is arranged toward the vent.

7. The air-cooled wireless charging structure according to claim 1, characterized in that: An installation groove is opened on the outer side of the shell, and the number of the heat dissipation holes is multiple, and the multiple heat dissipation holes are distributed in a matrix at the bottom of the installation groove; the wireless charging coil is embedded in the installation groove.

8. The air-cooled wireless charging structure according to claim 1, characterized in that: The air-cooled wireless charging structure also includes a charging panel, on which a wireless charging area is provided, and the wireless charging area is used to place the device to be charged; the charging panel cover is arranged on the outside of the shell, and the wireless charging area is against the wireless charging coil.

9. The air-cooled wireless charging structure according to claim 1, characterized in that: The air-cooled wireless charging structure also includes an inverter; the inverter is arranged on the inner side of the shell and located on the air supply channel; the wireless charging coil is electrically connected to the inverter, and the inverter is used to be electrically connected to a power source.

10. A portable energy storage power supply, characterized in that: It comprises the air-cooled heat dissipation wireless charging structure according to any one of claims 1 to 9.

Images