CN219181246U - Wireless charger with refrigerating and heat dissipating functions - Google Patents

Abstract

The utility model provides a wireless charger with cooling and heat dissipation functions. The wireless charger with cooling and cooling functions includes a charging module and a cooling module. The charging module includes a coil, and the cooling module is in physical contact with the coil of the charging module. The cooling module includes a heat conduction component and a heat dissipation component. The coil, the heat conduction component and the heat dissipation component are stacked in sequence. The wireless charger with refrigeration and heat dissipation function of the utility model is equipped with a cooling module to realize that the charger conducts the heat energy generated by the coil and radiates it out of the charger during the working process, reduces the temperature of the coil, and prevents it from overheating to the charger. The damage caused by the wireless charger has been improved to improve the charging efficiency and product reliability of the wireless charger.

Description

Wireless charger with cooling and cooling functions

【Technical field】

The utility model relates to the technical field of wireless charging, in particular to a wireless charger with cooling and heat dissipation functions.

【Background technique】

With the development of science and technology and the improvement of people's living standards, more and more people use some portable digital devices or electronic products. With the wide application of smart phones, the defects of small battery capacity and fast power consumption of smart phones more obvious. At the same time, with the increase in the number of domestic passenger cars, the need to charge smartphones in passenger cars has become increasingly urgent.

In order to improve the battery life of smartphones, wireless charging technology has won the favor of many users in view of the convenience of omitting wires and the ease of operation without plugging and unplugging.

The so-called wireless charging refers to the use of the principle of electromagnetic wave induction to convert magnetic field energy into electrical energy, realize energy transmission in space, and cancel the use of traditional power cords to connect terminal devices such as smartphones. The wireless charging system includes a wireless charging transmitting coil and a wireless charging receiving coil coupled to each other. The wireless charging transmitting coil converts electrical energy into magnetic field energy, and the magnetic field can propagate radiation in space. The wireless charging receiving coil receives the The above magnetic field energy is converted into electrical energy to power the smartphone.

During the process of converting electrical energy into magnetic field energy by the wireless charging transmitting coil, part of the energy will inevitably be converted into heat energy. However, due to the lack of cooling and heat dissipation systems in existing wireless chargers, the generated heat energy cannot be dissipated out of the charger in time, and the temperature of the charger, especially the transmitting coil, is often too high during use, which not only seriously affects the wireless charger. The high charging efficiency also brings certain hidden dangers to users. Therefore, it is necessary to provide a new wireless charger to solve the above problems.

【Content of utility model】

In order to solve the problem that the coil temperature of the wireless charger in the prior art is too high during use, which seriously affects the charging efficiency and user safety, the utility model provides a wireless charger with cooling and heat dissipation functions.

A wireless charger with cooling and heat dissipation functions, including a charging module and a cooling module, the charging module includes a coil, the cooling module is in physical contact with the coil of the charging module, and the cooling module includes The heat conduction component and the heat dissipation component, the coil, the heat conduction component and the heat dissipation component are stacked in sequence.

Further, the heat conduction assembly includes a cooling sheet and a plurality of heat conduction sheets, the plurality of heat conduction sheets are stacked between the heat conduction assembly and the heat dissipation assembly, and the refrigeration sheet is interposed between two of the heat conduction assemblies. between slices.

Further, the number of the refrigerating sheets is one, the heat conducting sheet includes a first heat conducting sheet, a second heat conducting sheet and a third heat conducting sheet, the first heat conducting sheet is in physical contact with the coil, and the third heat conducting sheet The sheet is in physical contact with the heat dissipation component, and the cooling sheet is interposed between the second heat conduction sheet and the third heat conduction sheet.

Further, the heat dissipation component includes a heat sink, and the heat sink is in physical contact with the heat conduction component.

Further, the heat sink includes a bottom surface and cooling fins, and the cooling fins are equidistantly and evenly arranged along the outer edge of the bottom surface.

Further, the bottom surface and the heat dissipation fins jointly enclose a housing structure.

Further, the heat dissipation assembly includes a heat dissipation fan.

Further, the charging module further includes a main board, and the heat conduction component passes through the main board and is connected to the heat dissipation component.

Further, the wireless charger with cooling and heat dissipation function also includes a positioning component, the positioning component is a plurality of magnets arranged in a ring, the plurality of magnets are arranged at intervals, and the interval between every two adjacent magnets is equal.

Further, the wireless charger with cooling and heat dissipation function also includes a rear shell, a plurality of through holes are evenly distributed on the surface of the rear shell, the rear shell forms a hollow structure, and the heat dissipation component is accommodated in the hollow structure.

Compared with the prior art, the wireless charger with cooling and heat dissipation functions provided by the utility model is provided with the cooling module, which can conduct the heat energy generated by the coil in time through the heat conduction component, and through the heat dissipation component In addition to dissipating the wireless charger with cooling and heat dissipation functions in time, on the one hand, it can effectively prevent the temperature of the coil from being too high during use, thereby improving the charging efficiency of the wireless charger with cooling and heat dissipation functions. On the other hand, wireless chargers with cooling and heat dissipation functions can effectively reduce the possibility of damage and explosion of chargers and corresponding terminals due to overheating, and eliminate potential safety hazards.

【Description of drawings】

FIG. 1 is a schematic diagram of a three-dimensional assembly structure of a wireless charger with cooling and heat dissipation functions provided by the present application;

Fig. 2 is a three-dimensional exploded schematic view of the functional system shown in Fig. 1;

Fig. 3 is a schematic diagram of heat conduction of the heat conduction component shown in Fig. 2;

FIG. 4 is a schematic structural diagram of the heat dissipation assembly shown in FIG. 2 .

【Detailed ways】

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to FIG. 1 , which is a schematic diagram of a three-dimensional assembly structure of a wireless charger with cooling and heat dissipation functions provided by the present invention. The wireless charger 10 with cooling and cooling functions in this embodiment includes a bracket 11 , a direction adjustment system 13 and a functional system 15 . One end of the direction adjustment system 13 is connected to the bracket 11 , and the other end supports the rotation of the functional system 15 in a set space. When in use, terminals such as smart phones are fixed on the functional system 15 by magnetic adsorption, and the bracket 11 fixes the wireless charger 10 with cooling and heat dissipation functions in the car, on the wall, etc., and the rotation direction adjustment system 13 can adjust the The orientation of the functional system 15 is adjusted, and the center of gravity of the whole structure is adjusted. It should be noted that the fixing method using the bracket and the direction adjustment system in FIG. 1 is only one of many optional fixing methods, and other fixing structures are also within the protection scope of the present application.

Please refer to FIG. 2 , which is an exploded perspective view of the functional system shown in FIG. 1 . The functional system 15 is composed of a lens 151 , an anti-slip ring 152 , a positioning component 153 , a face shell 154 , a charging module 155 , a heat conduction component 156 , a heat dissipation component 157 and a rear shell 158 .

The lens 151 is in the shape of a circular sheet, and the lens 151 is made of plastic material.

The anti-slip ring 152 is arranged on the periphery of the lens 151, the shape of the anti-slip ring 152 is ring-shaped, and the anti-slip ring 152 is made of silicone material.

The positioning assembly 153 is composed of a plurality of arc-shaped magnet groups arranged in a ring with the same radian. The plurality of arc-shaped magnet groups are spaced apart from each other, and the intervals between two adjacent arc-shaped magnet groups are equal. Each arc-shaped magnet group is divided into a first magnet unit and a second magnet unit along the diameter direction, and the first magnet unit and the second magnet unit are mutually attracted and arranged in contact with each other.

The charging module 155 is composed of a coil 1551 , a magnetic resistance sheet 1553 and a main board 1555 , and the magnetic resistance sheet 1553 is arranged close to the coil 1551 .

The overall shape of the face shell 154 is a cylindrical shape, and the lens 151, the anti-slip ring 152 and the face shell 154 cooperate to form a first receiving space for accommodating the positioning assembly 153, the coil 1551 and the For the magnetic resistance piece 1553, there are a plurality of arc-shaped receiving holes on the periphery of the side shell 154 close to the coil 1551, and the plurality of arc-shaped magnet groups of the positioning component 153 are respectively accommodated in the arc-shaped receiving holes.

The heat conduction component 156 is composed of a cooling plate 1561 , a first heat conduction plate 1563 , a second heat conduction plate 1565 and a third heat conduction plate 1567 . The first heat conduction sheet 1563 is interposed between the magnetic resistance sheet 1553 and the surface shell 154, the shape of the first heat conduction sheet 1563 is circular, and the first heat conduction sheet 1563 is made of metal aluminum. production. There is a square first through hole in the center of the face shell 154 , and the second heat conduction sheet 1565 is disposed in the first through hole and closely attached to the first heat conduction sheet 1563 . There is a square second through hole in the center of the main board 1555 , and the third heat conduction sheet 1567 is disposed in the second through hole and closely attached to the heat dissipation component 157 . The second heat conduction sheet 1565 and the third heat conduction sheet 1567 are made of heat conduction silica gel. The cooling sheet 1561 is attached between the second heat conducting sheet 1565 and the third heat conducting sheet 1567, and the cooling sheet 1561 is a thermoelectric semiconductor cooling sheet, and may also be of other structures with the same cooling effect.

The heat dissipation assembly 157 includes a heat sink 1571 and a heat dissipation fan 1573 , and the third heat conducting sheet 1567 is arranged in close contact with the heat sink 1571 .

The overall shape of the rear shell 158 is cylindrical. The rear shell 158 cooperates with the front shell 154 and the first heat conducting sheet 1563 to form a second storage space. The second heat conducting sheet 1565 and the first heat conducting sheet 1565 The three heat conducting fins 1567 , the cooling fin 1561 , the main board 1555 and the heat dissipation component 157 are all housed in the second receiving space. A plurality of through holes are evenly distributed on the surface of the rear shell 158 , and the main function of the plurality of through holes is to assist the heat dissipation component 157 to dissipate the heat received by it out of the charger system.

Please refer to FIG. 3 , which is a schematic diagram of heat conduction of the heat conduction component 156 shown in FIG. 2 , wherein the arrows represent the direction and path of heat conduction. The side of the cooling fin 1561 close to the coil 1551 is a cold end, and the side close to the heat dissipation component 157 is a hot end. When the heat conduction component 156 is working, the heat from the cold end of the refrigerating sheet 1561 will be transferred to the hot end, the temperature on the cold end side of the refrigerating sheet 1561 will decrease, and the temperature on the hot end side will increase, so that the coil There is a temperature difference between 1551 and the cold end of the cooling sheet 1561, and the heat generated at the coil 1551 passes through the first conductive sheet 1563 and the second conductive sheet 1565 successively along the direction of the arrow in the figure, and is conducted to The hot end of the cooling plate 1561. The hot end of the refrigerating fin 1561 transfers the heat obtained by it to the heat dissipation component 157 through the third conduction fin 1567 along the direction of the arrow.

Please refer to FIG. 4 , which is a schematic structural diagram of the heat dissipation assembly 157 shown in FIG. 2 . The heat dissipation assembly 157 is composed of a heat sink 1571 and a heat dissipation fan 1573 . The heat sink 1571 is composed of a bottom surface 15711 and heat dissipation fins 15713 . The shape of the bottom surface 15711 is circular, and the heat dissipation fins 15713 are evenly arranged equidistantly along the outer edge of the bottom surface 15711. The bottom surface 15711 and the heat dissipation fins 15713 together form a housing structure 15715. The receiving structure 15715 is a cylindrical space, and the cooling fan 1573 is disposed in the receiving structure 15715 .

When the heat dissipation assembly 157 is working, the bottom surface 15711 receives the heat transferred from the third heat conducting sheet 1567 . Part of the heat is conducted to the heat dissipation fins 15713 for dissipation, and the other part is conducted to the air in the receiving structure 15715 and dissipated through the heat dissipation fan 1573 . The material and shape of the cooling fan 1573 are not particularly limited here, as long as it has the function of dissipating the heat conducted by the heat conducting component. The structure of the heat dissipation assembly 157 shown in Figure 4 is only a specific embodiment of the present invention, and the heat dissipation assembly 157 can be equipped with a radiator and a cooling fan at the same time, or only have a radiator, or only have a cooling fan , as long as it can dissipate the heat conducted by the heat-conducting component out of the charger system.

The working principle of the wireless charger 10 with cooling and heat dissipation function is as follows: the bracket 11 fixes the wireless charger in the car or on the wall, and the positioning component 153 fixes the smart phone, tablet, etc. System 15 above. When the wireless charger 10 with cooling and cooling functions is working, the coil 1551 converts electrical energy into magnetic field energy, and at the same time generates a certain amount of heat energy, which causes the temperature of the coil 1551 to rise. The refrigerating sheet 1561 is a thermoelectric semiconductor element. When current flows through the refrigerating sheet 1561, the temperature of the side close to the coil 1551, that is, the cold end, decreases, resulting in a temperature difference between it and the coil 1551, so that the The heat energy at the coil 1551 can be conducted to the cooling plate 1561 through the first heat conducting sheet 1563 and the second heat conducting sheet 1565, and this part of the heat energy together with the heat energy generated at the other end of the cooling sheet passes through the third The heat conduction sheet 1567 conducts to the heat dissipation assembly 157 , and the heat dissipation assembly 157 dissipates heat to the outside of the wireless charger 10 with cooling and heat dissipation functions through the heat sink 1571 and the heat dissipation fan 1573 .

Compared with the wireless charger in the prior art, the wireless charger 10 with cooling and heat dissipation function provided by the present application uses the heat conduction component 156 and the heat dissipation component 157 including the cooling sheet 1561 to transfer the The heat generated by the coil 1551 conducts and dissipates out of the charger system, realizing the function of preventing the wireless charger from overheating during use, improving the charging efficiency of the wireless charger, and reducing damage to the charger and the terminal Beneficial effects of explosion risk.

What is described above is only a kind of embodiment of the present utility model, should point out here, for those of ordinary skill in the art, can also make improvement under the premise of not departing from the inventive concept of the present utility model, but these All belong to the protection scope of the present utility model.

Claims (10)

1. A wireless charger with cooling and heat dissipation functions, comprising:

the module charges, the module charges includes the coil, its characterized in that, the wireless charger of utensil refrigeration heat dissipation function still includes the cooling module, the cooling module with coil physical contact, the cooling module includes:

a heat conducting component; and

and the coil, the heat conduction component and the heat dissipation component are sequentially stacked.

2. The wireless charger with cooling and heat dissipation functions according to claim 1, wherein the heat conducting assembly comprises a cooling sheet and a plurality of heat conducting sheets, the plurality of heat conducting sheets are stacked between the heat conducting assembly and the heat dissipation assembly, and the cooling sheet is sandwiched between two of the heat conducting sheets.

3. The wireless charger with cooling and heat dissipating functions according to claim 2, wherein the number of cooling fins is one, the heat conducting fins include a first heat conducting fin, a second heat conducting fin and a third heat conducting fin, the first heat conducting fin is in physical contact with the coil, the third heat conducting fin is in physical contact with the heat dissipating component, and the cooling fin is sandwiched between the second heat conducting fin and the third heat conducting fin.

4. The wireless charger with cooling and heat dissipation functions of claim 1, wherein the heat dissipation assembly comprises a heat sink in physical contact with the heat conduction assembly.

5. The wireless charger with cooling and heat dissipation functions according to claim 4, wherein the heat sink comprises a bottom surface and heat dissipation fins, and the heat dissipation fins are uniformly distributed along the outer edge of the bottom surface at equal intervals.

6. The wireless charger with cooling and heat dissipation functions of claim 5, wherein the bottom surface and the heat dissipation fins together enclose a receiving structure.

7. The wireless charger with cooling and heat dissipation functions of claim 1, wherein the heat dissipation assembly comprises a heat dissipation fan.

8. The wireless charger with cooling and heat dissipation functions according to claim 1, wherein the charging module further comprises a main board, and the heat conducting component penetrates through the main board to be connected with the heat dissipation component.

9. The wireless charger with the cooling and heat dissipation functions according to claim 1, further comprising a positioning assembly, wherein the positioning assembly is a plurality of magnets which are arranged in a ring shape, the plurality of magnets are arranged at intervals, and the radian of intervals between every two adjacent magnets is equal.

10. The wireless charger with the cooling and heat dissipation functions according to claim 1, further comprising a rear shell, wherein a plurality of through holes are uniformly distributed on the surface of the rear shell, the rear shell forms a hollow structure, and the heat dissipation assembly is accommodated in the hollow structure.

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