CN111613422B - Wireless charging seat - Google Patents
Wireless charging seat Download PDFInfo
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- CN111613422B CN111613422B CN202010415227.8A CN202010415227A CN111613422B CN 111613422 B CN111613422 B CN 111613422B CN 202010415227 A CN202010415227 A CN 202010415227A CN 111613422 B CN111613422 B CN 111613422B
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- heat exchanger
- wireless charging
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- passage
- coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The embodiment of the disclosure provides a wireless charging seat, which comprises a shell, a coil and a heat dissipation assembly. The heat dissipation assembly is provided with a first heat exchanger, a second heat exchanger, a connecting pipe and a driving assembly, wherein a first passage is arranged in the first heat exchanger, a second passage is arranged in the second heat exchanger, the connecting pipe is communicated with the first passage and the second passage to form a closed circulation channel, the driving assembly is connected into the circulation channel, and the first heat exchanger is adjacent to the first surface; the coil is disposed on a first side of the first heat exchanger, the first side facing away from the first surface. The wireless charging seat of the embodiment of the present disclosure improves the heat dissipation efficiency of the wireless charging seat by forming a stable circulating heat exchange medium in the casing, and ensures the safety of the electronic device.
Description
Technical Field
The present disclosure relates to the field of wireless device technology, and in particular, to a wireless charging cradle.
Background
The wireless charging technology enables the charger to get rid of the limitation of a charging wire, the complete separation of the mobile phone and the power supply is realized, and the safety and the flexibility are greatly improved.
However, in the wireless charging process, along with the increase of the quick charging power, the heat productivity of the coil of the charging seat is greatly increased, and the heat produced by the charging seat can not be dissipated in time, so that the safety risk of the charging seat is increased, and the wireless charging power can also be reduced.
Disclosure of Invention
The embodiment of the disclosure provides a wireless charging seat to solve the problem of low heat dissipation efficiency of the conventional wireless charging seat.
In order to solve the above problem, the embodiments of the present disclosure adopt the following technical solutions:
the embodiment of the present disclosure provides a wireless charging seat for charge for electronic equipment, the wireless charging seat has a coil, the coil is used for charging for electronic equipment, the wireless charging seat includes:
a housing having a mounting cavity within the housing, the housing having a first surface for facing an electronic device;
the heat dissipation assembly is installed in the installation cavity and provided with a first heat exchanger, a second heat exchanger, a connecting pipe and a driving assembly, a first passage is arranged in the first heat exchanger, a second passage is arranged in the second heat exchanger, the connecting pipe is communicated with the first passage and the second passage to form a closed circulation channel, heat exchange media are filled in the circulation channel, the driving assembly is connected into the circulation channel and used for driving the heat exchange media to flow, the first heat exchanger is adjacent to the first surface, and the first heat exchanger is used for dissipating heat of the first surface;
the coil is disposed on a first side of the first heat exchanger, the first side facing away from the first surface.
The technical scheme adopted by the embodiment of the disclosure can achieve the following beneficial effects:
the embodiment of the disclosure provides a wireless charging seat, which comprises a shell, a coil and a heat dissipation assembly. According to the wireless charging seat, the first passage in the first heat exchanger and the second passage in the second heat exchanger are communicated through the connecting pipes to form the circulating passage, the wireless charging coil is adjacent to the first heat exchanger, and the heat generated in the coil charging process can be taken away due to the flowing of the low-temperature circulating heat exchange medium in the first heat exchanger, so that the heat dissipation efficiency of the wireless charging seat is improved, and the long-term stable operation of the wireless charging seat is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
fig. 1 is a schematic cross-sectional view of a wireless charging cradle according to an embodiment of the disclosure;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1 provided in accordance with an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a first heat exchanger of a wireless charging cradle according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second heat exchanger of a wireless charging cradle according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a first heat exchanger of a wireless charging cradle according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a first heat exchanger of another wireless charging cradle according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a second heat exchanger of another wireless charging cradle according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a first heat exchanger of another wireless charging cradle according to an embodiment of the present disclosure.
Description of reference numerals:
1-a shell; 101-a top cover; 102-a bottom cover; 2-a coil; 3-a shielding layer; 4-a heat exchange housing; 5-a radiator; 6-a control assembly; 7-a drive assembly; 8-a first heat exchanger; 9-a second heat exchanger; 10-a support assembly; 11-a flexible layer.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the following embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Technical solutions disclosed in the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 8, an embodiment of the present disclosure provides a wireless charging cradle for charging an electronic device, the wireless charging cradle including:
a housing 1, a coil 2 and a heat sink assembly.
The coil 2 is used for wirelessly charging the electronic equipment, the housing 1 is internally provided with a mounting cavity, and the housing 1 is provided with a first surface used for facing the electronic equipment; the heat dissipation assembly is installed in the installation cavity and provided with a first heat exchanger 8, a second heat exchanger 9, a connecting pipe and a driving assembly 7, a first passage is arranged in the first heat exchanger 8, a second passage is arranged in the second heat exchanger 9, the connecting pipe is communicated with the first passage and the second passage to form a closed circulating channel, a heat exchange medium is filled in the circulating channel, the driving assembly 7 is connected into the circulating channel, the driving assembly 7 is used for driving the heat exchange medium to flow, the first heat exchanger 8 is adjacent to the first surface, and the first heat exchanger 8 is used for dissipating heat of the first surface; the coil 2 is arranged on a first side of the first heat exchanger 8, the first side is away from the first surface, the first heat exchanger 8 can absorb heat generated by the coil 2 in a charging process, and the use temperature of the coil 2 is reduced.
In particular, the casing 1 comprises a top cover 101 close to the first surface, the first heat exchanger 8 being arranged inside the top cover 101. The first heat exchanger 8 is used for dissipating heat of the first surface, and the top cover 101 can provide stable support and protection for the first heat exchanger 8, so that the heat exchange stability and the heat exchange efficiency of the first heat exchanger 8 are ensured. In addition, the first heat exchanger 8 can also be arranged at a position of the casing 1 close to the top cover 101, which can also absorb heat generated in the charging process of the coil 2, and the structure compactness in the wireless charging seat is increased.
Optionally, the first heat exchanger 8 may be a plate-shaped structure, an opening is provided on the housing 1, and the first heat exchanger 8 is disposed at the opening, so that the first heat exchanger 8 may serve as a support structure of the wireless charging stand on the basis of ensuring heat exchange.
The electronic equipment needs to be close to the top cover 101 when wirelessly charging, in the wireless charging process, the coil 2 can generate more heat, at the moment, a low-temperature working medium flows into the coil from the input end of the first heat exchanger 8 and is just positioned between the coil 2 and the electronic equipment, the low-temperature working medium can absorb the heat generated by the coil 2, the temperature of the working medium gradually increases and flows into the second heat exchanger 9, at the moment, the radiator 5 can cool the high-temperature working medium in the second heat exchanger 9, the temperature of the working medium gradually decreases and flows into the first heat exchanger 8 under the driving of the driving assembly 7, a stable circulating working medium is formed, and the heat dissipation efficiency of the wireless charging seat is improved.
In addition, the top cover 101 may be a material having a certain strength and being permeable to magnetism, specifically, a plastic, a ceramic, a phase change material, etc. having a certain heat conduction function, or a composite material of the above materials.
Optionally, the casing 1 further comprises a bottom cover 102 far from the top cover 101, and a radiator 5 is disposed between at least a part of the second heat exchanger 9 and the bottom cover 102. Specifically, in the process of charging the electronic device by using the wireless charging stand, the bottom cover 102 is far away from the electronic device, which facilitates the heat radiator 5 to transfer the heat in the second heat exchanger 9 from the bottom cover 102 to the outside of the wireless charging stand, and ensures the stable use of the wireless charging stand.
Specifically, the second heat exchanger 9 includes a second heat exchanger body and a heat exchange shell 4, the heat exchange shell 4 is disposed on the outer side of the second heat exchanger body and contacts with the second heat exchanger body, and the heat exchange shell 4 may be made of a material with high thermal conductivity, so as to facilitate heat dissipation of a high-temperature working medium in the second heat exchanger 9. The second heat exchanger 9 can be a plate heat exchanger or a tubular heat exchanger, when the second heat exchanger 9 is a plate heat exchanger, the second heat exchanger body can be a heat exchange plate in the heat exchange shell 4, and when the second heat exchanger 9 is a tubular heat exchanger, the second heat exchanger body can be a heat exchange tube bundle and a tube plate in the heat exchange shell 4.
Specifically, referring to fig. 1, the second heat exchanger 9 may be disposed right below the coil 2, so as to ensure structural symmetry of the wireless charging stand; in addition, the second heat exchanger 9 may also be disposed in a lateral space of the coil 2, that is, a remaining space in the housing 1, so that an idle space in the housing 1 may be fully utilized, and the structural compactness of the wireless charging stand is improved.
In particular, the number of the first heat exchanger 8 and the second heat exchanger 9 may be one, two, three, four or more. When the number of the first heat exchanger 8 and the second heat exchanger 9 is one, the first heat exchanger 8 and the second heat exchanger 9 may further include a plurality of inlets and outlets, respectively; when the number of the first heat exchanger 8 and the second heat exchanger 9 is plural, the number of the first heat exchanger 8 and the number of the second heat exchanger 9 may be the same or different, and the disclosure does not limit this.
Specifically, referring to fig. 3, the input end and the output end of the first heat exchanger 8 are both one, i.e. one outlet and one inlet, and the outlet and the inlet of the first heat exchanger 8 are arranged on the same side of the top cover 101. Referring to fig. 4, the input end and the output end of the second heat exchanger 9 are both one, that is, an outlet and an inlet, the output end of the first heat exchanger 8 is communicated with the input end of the second heat exchanger 9, so that single-in single-out of the working medium in the first heat exchanger 8 and single-in single-out of the working medium in the second heat exchanger 9 are realized.
In a specific embodiment, referring to fig. 5a, the first path in the first heat exchanger 8 is composed of bent pipes, the pipes in the first heat exchanger 8 form a plurality of bent parts, the long sides of the bent parts are parallel to the long sides of the top cover 101, and the short sides of the bent parts are parallel to the short sides of the top cover 101; referring to fig. 5b, the first path in the first heat exchanger 8 forms a plurality of bent portions, and the long sides of the bent portions are parallel to the short sides of the top cover 101, and the short sides of the bent portions are parallel to the long sides of the top cover 101; referring to fig. 5c, a plurality of continuous bent portions are formed in the middle of the first passage in the first heat exchanger 8, the input end of the first heat exchanger 8 is communicated with the middle of the continuous bent portions, and the output end of the first heat exchanger 8 is communicated with both outlets of the continuous bent portions.
Optionally, the number of the first passages is one, the input end of the first passage includes a first inlet and a second inlet, the output end of the first passage includes a first outlet and a second outlet, the first outlet and the second outlet are both communicated with the input end of the second heat exchanger 9, the first inlet and the second inlet are both communicated with the output end of the second heat exchanger 9, and the driving assembly 7 is disposed between the output end of the second heat exchanger 9 and the input end of the first heat exchanger 8.
Specifically, the working media at the input end of the first heat exchanger 8 and the output end of the second heat exchanger 9 are both low-temperature working media, the driving assembly 7 is used for conveying the working media at the output end of the second heat exchanger 9 to the input end of the first heat exchanger 8 and ensuring the circulation of the working media, the driving assembly 7 is generally a pump body, and the higher the temperature of the working media is, the higher the requirement on the pump body is. In order to increase the applicability and the service life of the drive assembly 7, the drive assembly 7 is arranged on a channel for conveying a low-temperature working medium.
Optionally, the number of the second passages is one, the input end of the second passage includes a third inlet and a fourth inlet, and the output end of the second passage includes a third outlet and a fourth outlet;
the first outlet and the second outlet are respectively communicated with the third inlet and the fourth inlet, the first inlet and the second inlet are respectively communicated with the third outlet and the fourth outlet, and the driving assembly 7 is arranged between the output end of the second heat exchanger 9 and the input end of the first heat exchanger 8.
Specifically, under the condition that the number of the first passages and the number of the second passages are both one, in order to avoid the problem that a single inlet and outlet is easy to block and cannot exchange heat, a plurality of inlets and outlets, such as two, three or four inlets and outlets, may be provided for the first passages and the second passages, so that when one of the inlets and outlets is blocked, the other inlets and outlets may also provide a heat exchange channel, thereby improving the reliability of heat exchange.
In particular, the first heat exchanger 8 may comprise only the first passage, which further facilitates the heat exchange between the first heat exchanger 8 and the coil 2; in addition, the first heat exchanger 8 may further include a casing, a first passage is provided in the casing, or a pipe is provided in the casing, and the pipe forms the first passage. Similarly, the second heat exchanger 9 may include only the second passage, or may include a housing in which the second passage is provided.
The number of the first passages is two, outlets of the two first passages are communicated with an input end of the second heat exchanger 9, inlets of the two first passages are communicated with an output end of the second heat exchanger 9, and the driving assembly 7 is arranged between the output end of the second heat exchanger 9 and the input end of the first heat exchanger 8.
Specifically, referring to fig. 6, the two inlets of the first passage are disposed in the middle of the first side of the top cover 101, and the two outlets of the first passage are symmetrically disposed on two sides of the two inlets of the first passage, so that the working medium in the first heat exchanger 8 can be double-in and double-out.
Specifically, referring to fig. 7, the number of the second passages is two, two inlets of the second passages are disposed in the middle of the same side of the heat exchange shell 4, and two outlets of the second passages are symmetrically disposed on two sides of the two inlets, so that double inlet and double outlet of the working medium in the second heat exchanger 9 are realized.
In a specific embodiment, referring to fig. 8a, the number of the first passages is two, each of the first passages forms a plurality of bent portions, long sides of the bent portions are parallel to long sides of the top cover 101, and short sides of the bent portions are parallel to short sides of the top cover 101; referring to fig. 8b, the number of the first vias is two, each of the first vias forms a plurality of bent portions, long sides of the bent portions are parallel to short sides of the top cover 101, and short sides of the bent portions are parallel to long sides of the top cover 101. Optionally, the inlets of the two first passages are respectively disposed on the second side and the third side of the top cover 101, and the second side and the third side are disposed on two sides of the top cover 101 oppositely.
Specifically, referring to fig. 8c, the number of the first passages is two, each of the first passages forms a plurality of bent portions, long sides of the bent portions are parallel to short sides of the top cover 101, short sides of the bent portions are parallel to long sides of the top cover 101, inlets of the two first passages are disposed on the second side and the third side of the top cover 101, specifically, an inlet of one first passage is a first inlet disposed below the top cover 101, an inlet of the other first passage is a second inlet, and the second inlet is disposed on the top cover 101. Because the inlet of the first passage is low-temperature working medium, the low-temperature working medium can quickly absorb the heat generated by the coil 2, and the low-temperature working medium is simultaneously introduced from the two ends of the top cover 101, so that the heat generated by the coil 2 can be quickly and efficiently absorbed, and the overall temperature of the top cover 101 can be balanced.
Optionally, flowing working media are filled in the first heat exchanger 8 and the second heat exchanger 9, and the working media are one of heat conduction liquids or heat conduction gases. Specifically, the specific heat capacity of liquid such as water, silicone oil, air and the like is large, and the heat generated by the coil 2 can be well absorbed under the condition that the circulation amount is small; the air working medium can greatly reduce the cost of the working medium and is safe and stable.
Optionally, the working medium is a mixture of a heat-conducting fluid and heat-conducting powder. Specifically, the heat-conducting fluid can be liquid such as water and silicone oil, the heat-conducting powder can be a material with good heat-conducting property such as BN (boron nitride), SiC (silicon carbide) and phase change capsules, and the BN material has the characteristics of low friction coefficient, good high-temperature stability, good thermal shock resistance, high strength and high heat-conducting coefficient, and can be well combined with the heat-conducting fluid to obtain a stable mixture with good heat conductivity; silicon carbide can be well compounded with heat-conducting fluid due to the characteristics of stable chemical property, high heat conductivity coefficient, small thermal expansion coefficient and good wear resistance.
Optionally, the heat sink 5 includes a plurality of heat dissipation fins arranged side by side, one end of the heat dissipation fin is close to the second heat exchanger 9, and the other end of the heat dissipation fin is close to the bottom cover 102.
Specifically, the heat exchange housing 4 and the heat sink 5 may be made of a high thermal conductive metal such as copper, a copper alloy, and an aluminum alloy, or may be made of a ceramic such as AlN (aluminum nitride) and SiC. The heat exchange shell 4 and the radiator 5 can be connected in a welding mode, and can also be in contact by filling heat conduction interface materials, so that a good heat dissipation effect can be achieved. In order to reduce the weight of the radiator 5 while ensuring the heat dissipation effect of the radiator 5, a plurality of radiating fins arranged side by side can be arranged on the radiator 5, and the plurality of radiating fins form a plurality of netlike radiating channels, so that the heat dissipation can be facilitated, and the weight of the radiator 5 is greatly reduced.
Optionally, referring to fig. 1 and 2, the side of the coil 2 remote from the top cover 101 is provided with an electromagnetic shielding layer 3.
Specifically, the electromagnetic shielding layer 3 may be made of a metal material or an alloy, and the electromagnetic shielding layer 3 is disposed on a side of the coil 2 away from the top cover 101, that is, on a side of the coil 2 away from the electronic device during charging, so that magnetic leakage of the coil 2 can be reduced, and the efficiency of wireless charging is ensured; in addition, heat-conducting glue is filled between the coil 2 and the electromagnetic shielding layer 3, so that heat of the coil 2 can be dissipated conveniently. Heat conducting glue can be filled between the electromagnetic shielding layer 3 and the shell 1, and the heat conducting glue can be heat conducting interface materials such as heat conducting silicone grease, heat conducting gel and the like.
Optionally, referring to fig. 1, the wireless charging cradle further comprises a control assembly 6, and the control assembly 6 is electrically connected with the coil 2 and the driving assembly 7.
Specifically, the control assembly 6 may include a power supply and a control board, and the power supply may provide stable power supply for the coil 2 and the driving assembly 7, so as to achieve the effect of stable and efficient heat dissipation while ensuring wireless charging; in addition, the control panel can control the driving power of the driving component 7, and the purpose of flexibly adjusting the heat dissipation efficiency is achieved.
Optionally, referring to fig. 1, the wireless charging cradle further includes a flexible layer 11, and the flexible layer 11 is disposed on a surface of the top cover 101.
Specifically, when the wireless charging seat charges for electronic equipment, electronic equipment needs to be close to the surface of top cap 101, in order to avoid electronic equipment with the wearing and tearing that hard contact between the top cap 101 brought the surface of top cap 101 has set up flexible layer 11, flexible layer 11 can adopt materials such as silica gel, rubber, the bubble cotton that have certain elasticity and heat conduction function, also can be the combined material that above-mentioned material constitutes. The flexible layer 11 can be fully contacted with the wireless charging seat after the electronic equipment is pressed, so that the thermal resistance between the rear cover of the electronic equipment and the cooling working medium of the wireless charging seat is reduced.
Optionally, referring to fig. 1, the wireless charging cradle further includes a plurality of supporting members 10, and a plurality of the supporting members 10 are disposed on a second surface of the bottom cover 102, and the second surface is far away from the top cover 101.
In particular, the number of the support assemblies 10 may be two, three or more. When the number of the support assemblies 10 is two, the support assemblies 10 may be arranged in a strip shape, and the two support assemblies 10 are arranged oppositely to achieve stable support of the wireless charging stand; when the number of the supporting components 10 is greater than two, the plurality of supporting components 10 can only perform point supporting to stably support the wireless charging stand.
Optionally, a heat insulation device is arranged between the second heat exchanger 9 and the coil 2.
In particular, the temperature of the fluid inside the second heat exchanger 9 is high, and in order to prevent the fluid inside the second heat exchanger 9 from transferring heat to the coil 2 when heat is not dissipated in time, the thermal insulation means is provided between the second heat exchanger 9 and the coil 2. The heat insulation device can be a layered structure composed of heat insulation materials, and the heat insulation materials can be one or more of glass fiber, asbestos, rock wool, silicate and aerogel; in addition, a structural layer supporting the coil 2 and belonging to the shell can be arranged between the second heat exchanger 9 and the coil 2, the structural layer can be a metal structure in order to ensure the structural strength of the shell, and a layer of layered structure consisting of heat insulation materials can be covered on the structural layer due to poor heat insulation performance of the metal structure, so that a good heat insulation effect can be achieved. In addition, the structural layer can also be a hollow structure, and air or a vacuum state in the hollow structure can play a good role in isolating heat.
The embodiment of the present disclosure further provides an electronic device assembly, which includes an electronic device and the wireless charging cradle;
the wireless charging seat can wirelessly charge the electronic equipment.
In particular, the electronic device may be one of a smart watch, a cell phone, a tablet, an e-book reader, an MP3 player, an MP4 player, a computer, a set-top box, a smart tv, and a wearable device.
While the present disclosure has been described with reference to the embodiments illustrated in the drawings, which are intended to be illustrative rather than restrictive, it will be apparent to those of ordinary skill in the art in light of the present disclosure that many more modifications may be made without departing from the spirit of the disclosure and the scope of the appended claims.
Claims (10)
1. The utility model provides a wireless charging seat for charge for electronic equipment, wireless charging seat has the coil, the coil is used for charging for electronic equipment, its characterized in that, wireless charging seat includes:
a housing having a mounting cavity therein, the housing having a first surface for facing an electronic device;
the heat dissipation assembly is installed in the installation cavity and provided with a first heat exchanger, a second heat exchanger, a connecting pipe and a driving assembly, a first passage is arranged in the first heat exchanger, a second passage is arranged in the second heat exchanger, the connecting pipe is communicated with the first passage and the second passage to form a closed circulation channel, a heat exchange medium is filled in the circulation channel, the driving assembly is used for driving the heat exchange medium to flow, the first heat exchanger is adjacent to the first surface, and the first heat exchanger is used for dissipating heat of the first surface;
the coil is arranged on a first side of the first heat exchanger, and the first side faces away from the first surface;
the outlet of the first passage is communicated with the input end of the second heat exchanger, the inlet of the first passage is communicated with the output end of the second heat exchanger, and the driving assembly is arranged between the output end of the second heat exchanger and the input end of the first heat exchanger;
the first via forms a plurality of bent portions.
2. The wireless charging dock of claim 1, wherein the housing comprises a top cover adjacent to the first surface, the first heat exchanger being disposed within the top cover.
3. The wireless charging dock of claim 2, wherein the housing further comprises a bottom cover remote from the top cover, and a heat sink is disposed between at least a portion of the second heat exchanger and the bottom cover.
4. The wireless charging stand according to claim 1, wherein the number of the first passages is two, the outlets of the two first passages are both communicated with the input end of the second heat exchanger, and the inlets of the two first passages are both communicated with the output end of the second heat exchanger.
5. The wireless charging stand according to claim 2, wherein the input end of the first heat exchanger is located in the middle of the first side of the top cover, and the outlets of the two first heat exchangers are symmetrically arranged on two sides of the input end of the first heat exchanger.
6. The wireless charging dock of claim 3, wherein the heat sink comprises a plurality of fins, one end of the fins being adjacent to the second heat exchanger and the other end of the fins being adjacent to the bottom cover.
7. The wireless charging stand according to claim 2, wherein an electromagnetic shielding layer is disposed on a side of the coil away from the top cover.
8. The wireless charging dock of claim 2, further comprising a flexible layer disposed on a surface of the top cover.
9. The wireless charging dock of claim 1, wherein the second heat exchanger comprises a second heat exchanger body and a heat exchange housing, the heat exchange housing being disposed outside the second heat exchanger body.
10. The wireless charging dock of claim 1, wherein a thermal insulation means is disposed between the second heat exchanger and the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010415227.8A CN111613422B (en) | 2020-05-15 | 2020-05-15 | Wireless charging seat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010415227.8A CN111613422B (en) | 2020-05-15 | 2020-05-15 | Wireless charging seat |
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| Publication Number | Publication Date |
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| CN111613422A CN111613422A (en) | 2020-09-01 |
| CN111613422B true CN111613422B (en) | 2021-08-17 |
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| CN202010415227.8A Active CN111613422B (en) | 2020-05-15 | 2020-05-15 | Wireless charging seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102022203149A1 (en) * | 2022-03-30 | 2023-10-05 | Mahle International Gmbh | Stationary induction charging device for a vehicle charging system |
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| CN109617152B (en) * | 2018-11-20 | 2022-10-25 | 安克创新科技股份有限公司 | Wireless charging device |
| CN110880803B (en) * | 2019-12-17 | 2022-02-15 | 台达电子企业管理（上海）有限公司 | Wireless charging device |
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| CN111613422A (en) | 2020-09-01 |
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