CN210042634U - Wireless charging seat adopting phase change inhibition heat transfer material and piezoelectric ceramic fan - Google Patents
Wireless charging seat adopting phase change inhibition heat transfer material and piezoelectric ceramic fan Download PDFInfo
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- CN210042634U CN210042634U CN201821812570.0U CN201821812570U CN210042634U CN 210042634 U CN210042634 U CN 210042634U CN 201821812570 U CN201821812570 U CN 201821812570U CN 210042634 U CN210042634 U CN 210042634U
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Abstract
The utility model discloses a wireless charging seat adopting phase change inhibition heat transfer material and piezoelectric ceramic fan, comprising an upper shell and a back cover, wherein the middle part of the upper shell is embedded with a non-metallic cover plate, and an upper radiating fin, a transmitting coil, a lower radiating fin, a piezoelectric ceramic fan and a PCBA board are arranged in the space enclosed by the upper shell and the back cover; the upper shell and the back cover are respectively provided with an air inlet and an air outlet; the surfaces of the upper radiating fin and the lower radiating fin are provided with ventilating grooves; the back cover is made of a metal plate based on a phase change inhibition heat transfer technology, and a heat superconducting closed pipeline filled with a heat transfer working medium is arranged inside the phase change inhibition heat transfer metal plate. The utility model discloses an inlaid piezoceramics fan and adopt the back of the body lid of phase transition suppression heat transfer technique, can discharge the heat from back of the body lid surface and air outlet fast, solved the wireless product of charging the quick heat dissipation problem in charging process, avoided wireless charging device and accepted the product that charges and received harm or shorten life's the condition emergence because of charging.
Description
Technical Field
The utility model belongs to the technical field of wireless charging, a wireless charging seat is related to, concretely relates to adopt phase transition to restrain heat transfer material and piezoceramics fan's wireless charging seat.
Background
Nowadays, with the rapid development of wireless charging technology, wireless charging has rapidly penetrated into people's lives. Especially has wide application prospect in the related fields of consumer electronics, medical electronics, industrial electronics and the like. Therefore, the performance requirements of people for wireless charging are higher and higher, and the demand is also higher and higher. The current mainstream scheme of wireless charging is a magnetic coupling mode, for example, a low-frequency (100-.
At present, the mainstream wireless charging equipment in the market, such as products of apple, samsung, millet and other brands, has a fast charging power of only 7.5W, and the real fast charging can only be maintained for half an hour, which is the most important reason among them that the heat dissipation problem caused by fast charging cannot be solved. In the process of rapid charging, the temperature inside the mobile phone can easily reach a set temperature protection point, so that a temperature protection circuit inside the mobile phone is triggered, and the charging power is reduced.
At present, there are two conventional heat dissipation methods in wireless charging technology, including active heat dissipation and passive heat dissipation. The active heat dissipation is that the fan is increased in the product inside, utilize the air convection principle to pass through the louvre with heat and discharge, but because wireless product of charging mostly adopts the slim design in the ID design, axial fan and centrifugal fan are adopted mostly to the radiator fan of mainstream on the market, consequently wireless product of charging can only select the less model of size when the fan type selection, and the output of small-size fan is little, and the air output is low to lead to wireless product of charging during operation radiating effect not good. The passive heat dissipation is mainly realized by adding an aluminum heat dissipation block inside a product or using a metal bottom shell to assist heat dissipation, and the common metal heat dissipation has the problems of higher ambient temperature of a heat source, lower temperature of a region far away from the heat source and uneven temperature distribution, so that the heat dissipation effect is not ideal.
SUMMERY OF THE UTILITY MODEL
In order to solve the wireless product of charging the quick heat dissipation problem of in the charging process, the utility model provides an adopt the phase transition to restrain heat transfer material and piezoceramics fan's wireless charging seat, to adopt the phase transition to restrain heat transfer technology's metal material as shell or back of the body lid, the samming characteristic that it has can provide bigger heat radiating area, the high wind speed that the during operation of recombination piezoceramics fan brought can be taken away the heat that wireless charging produced fast to satisfy the wireless product of charging to radiating requirement.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a wireless charging seat adopting a phase change inhibition heat transfer material and a piezoelectric ceramic fan comprises an upper shell and a back cover, wherein a non-metal cover plate is embedded in the middle of the upper shell, and an upper radiating fin, a transmitting coil, a lower radiating fin, the piezoelectric ceramic fan and a PCBA board for controlling the working of the transmitting coil are arranged in a space enclosed by the upper shell and the back cover; wherein,
the upper radiating fin, the transmitting coil and the lower radiating fin are sequentially overlapped, the upper surface of the upper radiating fin is attached to the lower surface of the non-metal cover plate, and the lower surface of the lower radiating fin is attached to the upper surface of the back cover;
the PCBA board and the transmitting coil are arranged side by side and are attached to the upper surface of the back cover through a heat-conducting double-sided adhesive tape, or the PCBA board is overlapped below the lower radiating fin and then is attached to the upper surface of the back cover through the heat-conducting double-sided adhesive tape;
an air inlet is formed in the side wall of the upper shell, an air outlet is formed in the back cover, an air convection channel is formed between the air inlet and the air outlet, and the piezoelectric ceramic fan is arranged on one side of the air inlet; the surfaces of the upper radiating fin and the lower radiating fin are both provided with ventilating grooves, and the directions of the ventilating grooves are the same as the directions from the air inlet to the air outlet;
the back cover is made of a phase change inhibition heat transfer metal plate based on a phase change inhibition heat transfer technology, a heat superconducting closed pipeline with a specific shape is arranged inside the phase change inhibition heat transfer metal plate, and a heat transfer working medium of fluid is filled in the heat superconducting closed pipeline.
Further, the heat transfer working medium is gas, liquid or a mixture of gas and liquid.
Furthermore, the non-metal cover plate is made of any one of plastic, glass and ceramic.
Furthermore, the inner side of the non-metal cover plate is sprayed with heat conduction materials to assist in heat conduction.
Preferably, the heat conducting material is a graphite material, but is not limited to the graphite material.
Further, the upper radiating fin and the lower radiating fin are made of any one of a graphite sheet, a heat conducting pad, heat conducting silicone grease or a phase change energy storage material.
Furthermore, the upper shell is made of any one of plastic, glass, ceramic and metal.
Preferably, when the upper shell is made of plastic, glass or ceramic, the non-metal cover plate can be omitted because the upper shell has the function of the non-metal cover plate, and the non-metal cover plate and the upper shell form a whole.
Preferably, when the material of the upper shell is metal, the metal used may also include the phase change suppression heat transfer metal plate.
Furthermore, the air inlet with all cover on the air outlet has waterproof ventilated membrane to prevent that liquid from getting into inside the product.
Preferably, the piezoceramics fan is arranged in a closed cavity, a long and narrow air inlet and an air outlet are respectively arranged at two ends of the closed cavity, the air inlet aligns with the air inlet on the upper shell, the air outlet aligns with the upper radiating fin, the transmitting coil, the lower radiating fin and the PCBA board, and the upper radiating fin, the transmitting coil, the lower radiating fin and the PCBA board are directly cooled by high-speed airflow generated by resonance of the piezoceramics fan.
Preferably, the piezoceramics fan is inlayed on epitheca or back lid, and be close to air intake one side, on epitheca or back lid natural radiation heat dissipation's basis, increase forced air convection.
Further, the outline of the upper shell and the back cover is square or round, but not limited to one of square or round; similarly, the outer shape of the non-metal cover plate, the upper heat sink and the lower heat sink is circular or square, but not limited to circular or square.
The working principle of the utility model is as follows:
when the back of the mobile phone is placed on the surface of the upper shell of the utility model for charging, the transmitting coil, the PCBA board and the piezoelectric ceramic fan start to work simultaneously; because the back of the mobile phone is contacted with the upper shell and the non-metal cover plate, the heat on the back of the mobile phone is transmitted to the back cover adopting the phase change inhibition heat transfer metal plate from the non-metal cover plate through the upper radiating fin, the transmitting coil and the lower radiating fin in sequence, and the heat generated by the transmitting coil and the PCBA plate is also transmitted to the back cover adopting the phase change inhibition heat transfer metal plate;
the partial heat is firstly conducted to the local part of the phase change inhibition heat transfer metal plate in a conduction mode, and then the local heat source is rapidly diffused to the whole plane through the heat transfer working medium (phase change inhibition technology) filled in the heat superconducting closed pipeline in the phase change inhibition heat transfer metal plate;
the other part of the heat is converted into high-speed air flow by the operation of the piezoelectric ceramic fan, and the high-speed air flow discharges the part of the heat from the air outlet of the back cover through the ventilation grooves on the upper radiating fin and the lower radiating fin;
the two radiating structures are arranged together, so that the transmitting end and the receiving end can be cooled rapidly at the same time.
The utility model has the advantages that:
when the utility model is used for wirelessly charging the mobile intelligent equipment, on one hand, through the embedded piezoelectric ceramic fan, and the heat generated by the intelligent mobile device, the transmitting coil and the PCBA board can be quickly discharged from the air outlet of the back cover by combining the upper radiating fin, the lower radiating fin and the ventilating slot arranged on the surfaces of the upper radiating fin and the lower radiating fin, on the other hand, by utilizing the heat conduction principle, and the heat dissipation area of the back cover is enlarged by combining the phase change inhibition heat transfer technology, the heat conducted to the back cover can be quickly dissipated, the simultaneous quick cooling of the transmitting end and the receiving end is realized under the condition of double pipes of the two heat dissipation structures, the quick heat dissipation problem of the wireless charging product in the charging process is solved, the wireless charging seat is ensured to maintain a lower temperature in the working process, and the condition that the wireless charging device and the product receiving charging are damaged or the service life of the wireless charging seat is shortened due to charging is avoided.
The utility model discloses the piezoceramics fan that adopts has no electromagnetic interference, compact structure, low power dissipation, the wind speed is high, characteristics such as long service life, can reduce the electromagnetic radiation interference of wireless product during operation that charges, reduce the consumption, the lifting efficiency, the high wind speed of 4 ms that its during operation produced, on radiator natural radiation radiating basis, the convection current of forced air is further increased, can greatly improve the cooling effect of wireless charging seat, has fine practicality, can produce better economic benefits and social.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic perspective view of the wireless charging stand of the present invention;
fig. 2 is an exploded view of the wireless charging stand of the present invention;
fig. 3 is the schematic diagram of the internal structure of the phase change suppression heat transfer metal plate of the wireless charging seat of the present invention.
Reference numbers in the figures: 1. a phase change inhibiting heat transfer metal plate; 2. a thermal superconducting closed pipeline; 3. an upper shell; 4. a back cover; 5. a non-metallic cover plate; 6. an upper heat sink; 7. a transmitting coil; 8. a lower heat sink; 9. PCBA board; 10. a piezoelectric ceramic fan; 20. an air outlet; 30. an air inlet; 40. and (4) ventilating slots.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, a wireless charging stand using a phase change suppression heat transfer material and a piezoelectric ceramic fan includes an upper case 3 and a back cover 4, a non-metal cover plate 5 is embedded in the middle of the upper case 3, and an upper heat sink 6, a transmitting coil 7, a lower heat sink 8, a piezoelectric ceramic fan 10, and a PCBA plate 9 for controlling the operation of the transmitting coil 7 are disposed in a space enclosed by the upper case 3 and the back cover 4. Wherein,
go up fin 6, transmitting coil 7 with fin 8 superposes down in proper order, just go up the upper surface of fin 6 with the lower surface laminating of nonmetal apron 5, the lower surface of fin 8 with the upper surface laminating of back of the body lid 4 down.
An air inlet 30 is formed in the side wall of the upper shell 3, an air outlet 20 is formed in the back cover 4, an air convection channel is formed between the air inlet 30 and the air outlet 20, and the piezoelectric ceramic fan 10 is arranged on one side of the air inlet 30; in order to enhance the air convection effect, ventilation grooves 40 are formed in the surfaces of the upper heat sink 6 and the lower heat sink 8, and the direction of the ventilation grooves 40 is the same as the direction from the air inlet 30 to the air outlet 20.
Referring to fig. 3, the back cover 4 is made of a phase-change suppression heat transfer metal plate 1 based on a phase-change suppression heat transfer technology, a heat superconducting closed pipeline 2 with a specific shape is arranged inside the phase-change suppression heat transfer metal plate 1, and a fluid is filled in the heat superconducting closed pipeline 2.
Further, the heat transfer working medium is gas, liquid or a mixture of gas and liquid, and more preferably, in this embodiment, a heat transfer working medium in which gas and liquid are mixed is used.
Furthermore, the non-metal cover plate 5 is made of any one of plastic, glass and ceramic.
Further, as an improved scheme, the inner side of the non-metal cover plate 5 is sprayed with a heat conduction material to assist in heat conduction. Preferably, the heat conducting material is a graphite material, but is not limited to the graphite material.
Further, the upper heat sink 6 and the lower heat sink 8 are made of any one of a graphite sheet, a heat conducting pad, heat conducting silicone grease or a phase change energy storage material.
Further, the upper shell 3 is made of any one of plastic, glass, ceramic and metal.
As a preferable scheme, when the upper case 3 is made of plastic, glass, or ceramic, the non-metal cover plate 5 may be eliminated because the upper case 3 also has the function of the non-metal cover plate 5, and the non-metal cover plate 5 and the upper case 3 form a whole.
Preferably, when the material of the upper case 3 is metal, the metal used may include the phase change suppression heat transfer metal plate 1, and the phase change suppression heat transfer metal plate 1 is preferably a phase change suppression heat transfer aluminum plate.
Further, the air inlet 30 and the air outlet 20 are covered with waterproof breathable films to prevent liquid from entering the interior of the product.
As a preferred scheme, the piezoceramic fan 10 is disposed in a closed cavity, two ends of the closed cavity are respectively provided with a long and narrow air inlet hole and an air outlet hole, the air inlet hole is aligned with the air inlet 30 on the upper casing 3, the air outlet hole is aligned with the upper heat sink 6, the transmitting coil 7, the lower heat sink 8 and the PCBA board 9, and the upper heat sink 6, the transmitting coil 7, the lower heat sink 8 and the PCBA board 9 are directly cooled by high-speed airflow generated by resonance of the piezoceramic fan 10.
Preferably, the piezoceramic fan 10 is embedded in the upper casing 3 or the back cover 4 and is close to one side of the air inlet 30, and forced air convection is increased on the basis of natural radiation heat dissipation of the upper casing 3 or the back cover 4.
Further, the outer shape of the upper case 3 and the outer shape of the back cover 4 are, but not limited to, square or round, and the outer shape of the non-metal cover plate 5, the upper heat sink 6 and the lower heat sink 8 are, but not limited to, round or square.
When the back of the mobile phone is placed on the surface of the upper shell 3 of the utility model for charging, the transmitting coil 7, the PCBA board 9 and the piezoelectric ceramic fan 10 start to work simultaneously; because the back of the mobile phone is contacted with the upper shell 3 and the non-metal cover plate 5, the heat on the back of the mobile phone sequentially passes through the upper radiating fin 6, the transmitting coil 7 and the lower radiating fin 8 from the non-metal cover plate 5 and is finally conducted to the back cover 4 adopting the phase change inhibition heat transfer metal plate 1, and the heat generated by the transmitting coil 7 and the PCBA plate 9 is also conducted to the back cover 4 adopting the phase change inhibition heat transfer metal plate 1;
the partial heat is firstly conducted to the local part of the phase change inhibition heat transfer metal plate 1 in a conduction mode, and then the local heat source is rapidly diffused to the whole plane through the heat transfer working medium (phase change inhibition technology) filled in the heat superconducting closed pipeline 2 in the phase change inhibition heat transfer metal plate 1, and the heat dissipation area of the back cover 4 is enlarged, so that the partial heat can be rapidly dissipated on the back cover 4;
the other part of the heat is converted into high-speed air flows by the operation of the piezoceramic fan 10, wherein the cold air introduced from the air inlet 30 of the upper shell 3 is discharged from the air outlet 20 of the back cover 4 by the high-speed air flows through the ventilation slots 40 on the upper heat radiating fin 6 and the lower heat radiating fin 8;
the two radiating structures are arranged together, so that the transmitting end and the receiving end can be cooled rapidly at the same time.
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 (10)
1. A wireless charging seat adopting a phase change inhibition heat transfer material and a piezoelectric ceramic fan is characterized in that: the electromagnetic wave power generation device comprises an upper shell (3) and a back cover (4), wherein a non-metal cover plate (5) is embedded in the middle of the upper shell (3), and an upper radiating fin (6), a transmitting coil (7), a lower radiating fin (8), a piezoelectric ceramic fan (10) and a PCBA board (9) for controlling the transmitting coil (7) to work are arranged in a space enclosed by the upper shell (3) and the back cover (4); wherein,
the upper radiating fin (6), the transmitting coil (7) and the lower radiating fin (8) are sequentially stacked, the upper surface of the upper radiating fin (6) is attached to the lower surface of the non-metal cover plate (5), and the lower surface of the lower radiating fin (8) is attached to the upper surface of the back cover (4);
the PCBA board (9) and the transmitting coil (7) are placed side by side and attached to the upper surface of the back cover (4) through heat-conducting double-sided adhesive tape, or the PCBA board (9) is overlapped below the lower radiating fin (8) and then attached to the upper surface of the back cover (4) through heat-conducting double-sided adhesive tape;
an air inlet (30) is formed in the side wall of the upper shell (3), an air outlet (20) is formed in the back cover (4), an air convection channel is formed between the air inlet (30) and the air outlet (20), and the piezoelectric ceramic fan (10) is arranged on one side of the air inlet (30); the surfaces of the upper radiating fin (6) and the lower radiating fin (8) are both provided with ventilating grooves (40), and the direction of each ventilating groove (40) is the same as the direction from the air inlet (30) to the air outlet (20);
the back cover (4) is made of a phase change inhibition heat transfer metal plate (1) based on a phase change inhibition heat transfer technology, a heat superconducting closed pipeline (2) is arranged inside the phase change inhibition heat transfer metal plate (1), and fluid heat transfer working media are filled in the heat superconducting closed pipeline (2).
2. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the heat transfer working medium is gas, liquid or a mixture of gas and liquid.
3. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the non-metal cover plate (5) is made of any one of plastic, glass and ceramic.
4. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the inner side of the non-metal cover plate (5) is sprayed with heat conduction materials including graphite materials.
5. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the upper radiating fin (6) and the lower radiating fin (8) are made of any one of a graphite sheet, a heat conducting pad, heat conducting silicone grease or a phase change energy storage material.
6. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the upper shell (3) is made of any one of plastic, glass, ceramic and metal; when the upper shell (3) is made of plastic, glass or ceramic, the non-metal cover plate (5) and the upper shell (3) form a whole; when the upper shell (3) is made of metal, the adopted metal comprises the phase change inhibition heat transfer metal plate (1).
7. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the air inlet (30) and the air outlet (20) are covered with waterproof breathable films.
8. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the piezoelectric ceramic fan (10) is arranged in a closed cavity, two ends of the closed cavity are respectively provided with a long and narrow air inlet hole and an air outlet hole, the air inlet hole is aligned with an air inlet (30) in the upper shell (3), and the air outlet hole is aligned with the upper radiating fin (6), the transmitting coil (7), the lower radiating fin (8) and the PCBA plate (9).
9. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the piezoelectric ceramic fan (10) is embedded on the upper shell (3) or the back cover (4) and is close to one side of the air inlet (30).
10. The wireless charging stand using phase change inhibiting heat transfer material and piezoelectric ceramic fan according to claim 1, wherein: the outer contours of the upper shell (3) and the back cover (4) are square or circular, and the outer contours of the non-metal cover plate (5), the upper radiating fins (6) and the lower radiating fins (8) are circular or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821812570.0U CN210042634U (en) | 2018-11-05 | 2018-11-05 | Wireless charging seat adopting phase change inhibition heat transfer material and piezoelectric ceramic fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821812570.0U CN210042634U (en) | 2018-11-05 | 2018-11-05 | Wireless charging seat adopting phase change inhibition heat transfer material and piezoelectric ceramic fan |
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| CN210042634U true CN210042634U (en) | 2020-02-07 |
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| CN201821812570.0U Active CN210042634U (en) | 2018-11-05 | 2018-11-05 | Wireless charging seat adopting phase change inhibition heat transfer material and piezoelectric ceramic fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4283831A1 (en) * | 2022-05-23 | 2023-11-29 | Shenzhen Benks Technology Co., Ltd | Charging device |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4283831A1 (en) * | 2022-05-23 | 2023-11-29 | Shenzhen Benks Technology Co., Ltd | Charging device |
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