CN211183543U - Wireless charging equipment and wireless charging system - Google Patents

Abstract

The embodiment of the application provides a wireless charging device and a wireless charging system, wherein the wireless charging device comprises a shell, a first heat dissipation assembly, a wireless charging part and a second heat dissipation assembly; the first heat dissipation assembly is arranged in the shell and used for dissipating heat of the equipment to be charged; the wireless charging part is arranged in the shell and used for wirelessly charging the equipment to be charged; the second heat dissipation assembly is arranged in the shell and used for dissipating heat of the wireless charging portion. The wireless charging equipment not only dissipates heat for the wireless charging part, but also dissipates heat for the equipment to be charged, and the heat dissipation efficiency can be improved.

Description

Wireless charging equipment and wireless charging system

technical field

The present application relates to the field of electronic technology, and in particular, to a wireless charging device and a wireless charging system.

Background technique

With the development of electronic technology, electronic devices such as mobile phones and tablet computers have become very important devices in people's daily life. At the same time, the power consumption of electronic devices is also increasing, and the frequency of charging is also increasing. Wired charging requires plugging and unplugging the charging cable every time, while wireless charging does not require plugging and unplugging the charging cable, which can more conveniently charge electronic devices. However, the heat generated during wireless charging is large, which causes the temperature of the wireless charger to be too high during wireless charging.

Utility model content

Embodiments of the present application provide a wireless charging device and a wireless charging system, which can improve the heating problem of the wireless charging device.

An embodiment of the present application provides a wireless charging device for charging a device to be charged, and the wireless charging device includes:

case;

a first heat dissipation component disposed in the housing, and the first heat dissipation component is used to dissipate heat to the device to be charged;

a wireless charging part, disposed in the casing, and the wireless charging part is used for wirelessly charging the device to be charged; and

A second heat dissipation assembly is disposed in the casing, and the second heat dissipation assembly is used for dissipating heat to the wireless charging unit.

Embodiments of the present application also provide a wireless charging device, which includes:

A device to be charged, the device to be charged is the device to be charged described above, and the device to be charged includes a wireless receiving coil;

A wireless charging device, the wireless charging device is the above-mentioned wireless charging device, and the wireless charging part of the wireless charging device includes a wireless transmitting coil, when the wireless charging device and the device to be charged are wirelessly charged , the wireless transmitting coil and the wireless receiving coil are at least partially opposite to each other.

In the embodiment of the present application, the wireless charging device includes a housing, a first heat dissipation component, and a second heat dissipation component. The first heat dissipation component is used to dissipate heat for the device to be charged, and the second heat dissipation component is used to dissipate heat to the wireless charging unit. The wireless charging device It not only dissipates heat for the wireless charging part, but also dissipates heat for the device to be charged, and dissipates heat for both the charging end (transmitter) and the charged end (receiving end) of wireless charging, which can improve the heat dissipation efficiency and effectively dissipate the heat generated during the wireless charging process. Go out and keep the temperature of the wireless charging device and the device to be charged within a reasonable temperature range to ensure the safety of wireless charging. In addition, during the wireless charging process, if the temperature of the wireless charging device or the device to be charged is too high, the charging power needs to be reduced. The embodiments of the present application effectively control the temperature of the wireless charging device and the device to be charged, so that the wireless charging device with higher power can be maintained. Charging, improve charging efficiency and shorten charging time. Because components such as the first heat dissipation assembly and the second heat dissipation assembly are located in the casing, the first heat dissipation assembly and the second heat dissipation assembly and other components can be well protected. At the same time, the wireless charging device has a neat and beautiful appearance, occupies a small space and is convenient to place.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments.

FIG. 1 is a schematic diagram of a first structure of a wireless charging device provided by an embodiment of the present application.

FIG. 2 is a schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the Y-Y direction.

FIG. 3 is a schematic diagram of another angle of the wireless charging device shown in FIG. 1 .

FIG. 4 is a schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the X-X direction.

FIG. 5 is another schematic cross-sectional view of the wireless charging device shown in FIG. 1 along the X-X direction.

FIG. 6 is an exploded schematic view of the wireless charging device shown in FIG. 1 .

FIG. 7 is another schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the Y-Y direction.

FIG. 8 is a schematic structural diagram of a wireless charging system provided by an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a device to be charged according to an embodiment of the present application.

FIG. 10 is another schematic diagram of the device to be charged shown in FIG. 9 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 . FIG. 1 is a schematic diagram of a first structure of a wireless charging device provided by an embodiment of the application, FIG. 2 is a schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the Y-Y direction, and FIG. 3 is a diagram of A schematic diagram of another angle of the wireless charging device shown in 1. The wireless charging device 100 provided in this embodiment of the present application includes a housing 120 , a first heat dissipation assembly 140 , a wireless charging portion 160 and a second heat dissipation assembly 180 . The wireless charging device is used to charge the device to be charged.

The first heat dissipation assembly 140 , the wireless charging portion 160 and the second heat dissipation assembly 180 are all disposed in the casing 120 . The first heat dissipation component 140 is used to dissipate heat for the device to be charged. The wireless charging unit 160 is used to wirelessly charge the device to be charged. The second heat dissipation component 180 is used to dissipate heat to the wireless charging unit 160 .

The first heat dissipation component 140 is used to dissipate heat for the device to be charged, and the second heat dissipation component 180 is used to dissipate heat to the wireless charging part 160 . The wireless charging device 100 not only dissipates heat to the wireless charging part 160 , but also dissipates heat to the Both the charging end (transmitter) and the charged end (receiving end) dissipate heat, which can improve the heat dissipation efficiency, effectively dissipate the heat generated during the wireless charging process, and keep the temperature of the wireless charging device 100 and the device to be charged at a relatively reasonable temperature. Temperature range to ensure the safety of wireless charging. In addition, during the wireless charging process, if the temperature of the wireless charging device 100 or the device to be charged is too high, the charging power needs to be reduced. This embodiment effectively controls the temperature of the wireless charging device 100 and the device to be charged, so that it can maintain a higher power Wireless charging, improve charging efficiency and shorten charging time. Because the components such as the first heat dissipation assembly 140 and the second heat dissipation assembly 180 are located in the housing 120, the first heat dissipation assembly 140 and the second heat dissipation assembly 180 and other components can be well protected, and the wireless charging device 100 has a neat and beautiful appearance, and occupies less space. Small space, easy to place.

Specifically, the housing 120 may include a first sub-housing 122 and a second sub-housing 124 . The first sub-housing 122 is provided with a first cavity 132 , and the second sub-housing 124 is provided with a second cavity 134 .

The first heat dissipation component 140 is disposed in the first cavity 132 in the first sub-housing 122 , the wireless charging unit 160 is disposed in the second cavity 134 in the second sub-housing 124 , and the second heat dissipation component 180 is disposed in the second cavity 134 of the second sub-housing 124 . In the second cavity 134 in the second sub-housing 124 .

The first heat dissipation component 140 located in the first cavity 132 is used to dissipate heat for the device to be charged, the second heat dissipation component 180 located in the second cavity 134 is used to dissipate heat to the wireless charging unit 160 , and the first heat dissipation component 140 and the wireless The charging part 160 and the second heat dissipation component 180 are located in different cavities respectively, and do not affect each other. The first heat dissipation component 140 for dissipating heat for the device to be charged is not easily affected by the wireless charging part 160 and the second heat dissipation component 180 .

It should be noted that the wireless charging unit 160 may include a wireless transmitting coil, the device to be charged may include a wireless receiving coil, the wireless transmitting coil converts electrical energy into magnetic energy and transmits it, and the wireless receiving coil receives the magnetic energy and converts it into electrical energy. Used to charge the device to be charged. It can also be understood that the wireless transmitting coil of the wireless charging unit 160 and the wireless receiving coil of the device to be charged realize the conversion of electrical energy-magnetic energy-electrical energy, get rid of the shackles of the charging cable, and realize wireless charging. However, in the process of wireless charging, the heating of the wireless transmitting coil and the wireless receiving coil is very serious, and the higher the power of the wireless charging, the more serious the heating of the wireless transmitting coil and the wireless receiving coil. In this embodiment, the first heat dissipation component 140 can dissipate heat from the wireless receiving coil of the device to be charged, enhance the heat dissipation performance of the wireless receiving coil, and control the temperature rise of the wireless receiving coil. The coil dissipates heat, enhances the heat dissipation performance of the wireless charging part 160 , and controls the temperature rise of the wireless charging part 160 . It can be understood that, in addition to the wireless transmitting coil, the wireless charging unit may also include some other circuit modules, such as including at least one of a transformer circuit module, a voltage regulator circuit module, and a filter circuit module. Of course, in some embodiments, the wireless charging unit may only be a wireless transmitting coil.

The first heat dissipation assembly 140 may include a first heat dissipation fan 142 , and the first sub-casing 122 is provided with a first air guide port 1222 and a second air guide port 1224 . The first cooling fan 142 is located in the first cavity 132. When the first cooling fan 142 is running, the airflow enters the first air guide 1222, then enters the first cooling fan 142, and then flows from the second air guide 1224 to the device to be charged. It can also be understood that the first air guide 1222, the first cooling fan 142 and the second air guide 1224 form an air duct leading to the device to be charged, and the first cooling fan 142, the first air guide 1222 and the second air guide 1224 together are The device to be charged dissipates heat. When the first cooling fan 142 is running, one of the first air guide 1222 and the second air guide 1224 is used as an air inlet, and the other is used as an air outlet. The heat generated by the device is taken away, the heat dissipation effect of the device to be charged is enhanced, and the temperature rise of the device to be charged is controlled.

It should be noted that when the first cooling fan 142 is running, at least part of the air inlet may be facing the device to be charged, and the hot air around the device to be charged can be drawn away, which can also enhance the heat dissipation effect of the device to be charged and control the device to be charged. temperature rise.

The first sub-casing 122 and the second sub-casing 124 may cooperate with each other. Specifically, the second sub-housing 124 may include a carrying portion 1242, and the carrying portion 1242 is used to carry the device to be charged. It can also be understood that the device to be charged is placed on the carrying part 1242 for wireless charging, and the wireless charging part 160 is placed under the carrying part 1242 , that is, the wireless charging part 160 and the device to be charged are arranged on both sides of the carrying part 1242 . The first sub-casing 122 includes a protrusion 1226 protruding from the bearing portion 1242 , and the second air guide 1224 is disposed on the protrusion 1226 and faces the device to be charged. When the device to be charged is placed on the carrying portion 1242, the second air guide 1224 at least partially faces the device to be charged, and the second air guide 1224 can quickly dissipate heat to the device to be charged during wireless charging. For example, the first air guide 1222 is an air inlet, and the second air guide 1224 is an air outlet. The air coming out of the second air guide 1224 can take away the heat generated during the wireless charging of the device to be charged, and can be used to charge the device to be charged wirelessly. Heat dissipation and control the temperature rise of the device to be charged. For another example, the first air guide 1222 is an air outlet, and the second air guide 1224 is an air inlet. The hot air around the device to be charged is drawn away through the second air guide 1224 to dissipate heat for the wirelessly charged device to be charged, and control the to-be-charged device. The temperature rise of the charging device.

It should be noted that the first air guide port 1222 and the second air guide port 1224 may be disposed on different sides of the first sub-housing 122 . For example, the second air guide 1224 is facing the device to be charged, and the first air guide 1222 faces away from the device to be charged. It can also be understood that the first air guide 1222 and the second air guide 1224 are disposed on opposite sides of the first sub-housing 122. The first air guide port 1222 and the second air guide port 1224 disposed on opposite sides of the first sub-shell 122 cooperate with the first cooling fan 142 to form a relatively straight air duct, and the air flow in the air duct is fast and can be taken away faster. The heat generated by the device to be charged.

The first air guide port and the second air guide port may also be disposed on adjacent two sides of the first sub-housing. The first air guide and the second air guide can also be arranged on the same side, for example, they are both arranged on the protrusion, wherein the second air guide is facing the heating area of the charging device (such as the wireless receiving coil, etc.), and the first air guide avoids the heating area. Open the device to be charged, such as on a raised edge, and set a certain air guide angle so that the air passing through the first air guide can avoid the device to be charged. It can be understood that the number of the first air guide openings can be multiple, and the multiple first air guide openings can be arranged on different sides of the first sub-shell, that is, some of the first air guide openings among the multiple first air guide openings can be arranged at On the side opposite to the second air guide, another part of the first air guide is arranged on the side adjacent to the second air guide.

In addition to the wireless charging unit 160 required for wireless charging of the device to be charged, the wireless charging device 100 may further include a control circuit board 170 . The control circuit board 170 is electrically connected to the wireless charging unit 160 , and the control circuit board 170 cooperates with the wireless charging unit 160 . Wirelessly charge the device to be charged. For example, the control circuit board 170 is connected to the commercial power, and converts the commercial power (eg, 220V or 110V, etc.) into a lower voltage (eg, 5V or 12V, etc.) suitable for the wireless charging unit 160 to work. The control circuit board 170 can be arranged in the first cavity 132, and is located in a different cavity from the wireless charging part 160. The wireless charging part 160 will generate a lot of heat during the wireless charging process, and the control circuit board 170 will also be in the wireless charging process. Heat will be generated. If both the wireless charging part 160 and the control circuit board 170 are arranged in the second cavity 134 , it is not conducive to the heat dissipation of the wireless charging part 160 , and the high temperature will also affect the control circuit board 170 . The control circuit board 170 is arranged in the first cavity 132 so that the heat generated by the control circuit board 170 will not affect the heat dissipation of the wireless charging part 160 in the second cavity 134 and will not be affected by the heat generated by the wireless charging part 160 .

Please refer to FIG. 4 . FIG. 4 is a schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the X-X direction. The housing 120 may further include a support plate 1228 located in the first sub-housing 122, that is, the support plate 1228 is located in the first cavity 132, and the support plate 1228 divides the first cavity 132 into a first sub-cavity 1322 and a second sub-cavity 1322. The sub-cavity 1324, the first cooling fan 142 is located in the first sub-cavity 1322, the first air guide 1222 and the second air guide 1224 are both communicated with the first sub-cavity 1322, and the control circuit board 170 is located in the second sub-cavity 1324 .

The first cavity 132 in the first sub-housing 122 is divided into a first sub-cavity 1322 and a second sub-cavity 1324 by the support plate 1228 , the first cooling fan 142 is located in the first sub-cavity 1322 , and the first air guide 1222 and the second air guide port 1224 are both communicated with the first sub-cavity 1322 . When the first cooling fan 142 is running, the air duct formed by the first air guide 1222 , the first cooling fan 142 and the second air guide 1224 does not pass through the additional heating device (such as the control circuit board), which is generated and blown toward the to-be-charged The air temperature of the device is basically the same as the air temperature in the environment, which can better help the device to be charged dissipate heat. If the air duct formed by the first air guide 1222 , the first cooling fan 142 and the second air guide 1224 passes through other heating devices, the temperature of the air generated and blown to the device to be charged will be high, which is not conducive to the heat dissipation of the device to be charged.

The first air guide 1222 may include a plurality of small heat dissipation holes, may also include one or more large heat dissipation slots, and may also include heat dissipation structures of other structures, which are not limited herein.

If the control circuit board does not generate much heat, the second sub-cavity may not communicate with the first air guide and the second air guide. The heat generated by the control circuit board is small, and even in the second sub-cavity, the influence on the control circuit board is small. If the control circuit board generates more heat, the second sub-cavity may also be communicated with the first air guide. When the first cooling fan is running, ambient air outside the casing will enter the second sub-cavity. If the second sub-cavity is not connected to other air guides, part of the air will be discharged from the first air guide. For example, the first air guide includes a plurality of small heat dissipation holes, part of the ambient air can enter the second sub-cavity through some heat-dissipating holes, and part of the air in the second sub-cavity can be exhausted from other heat-dissipating holes, thereby taking away the control circuit board heat generated. Wherein, the plurality of heat dissipation holes may be distributed in different positions on one side of the first sub-case, or may be distributed in different sides of the first sub-case, so as to better take away the heat generated by the control circuit board. That is, the first cooling fan and the first air guide can also dissipate heat to the control circuit board. It should be noted that the first sub-casing may further include an air guide for dissipating heat from the control circuit board, and the air guide for dissipating heat from the control circuit board avoids the device to be charged. For example, the first sub-housing includes a top edge, a bottom edge and a side edge, the first sub-cavity is surrounded by the top edge, the side edge and the support plate, and the second sub-cavity is surrounded by the bottom edge, the side edge and the support plate , the air guide for dissipating heat to the control circuit board can be arranged on the bottom edge, so as to avoid the device to be charged and the first air guide.

Please refer to FIG. 5 in conjunction with FIG. 1 to FIG. 3 . FIG. 5 is another schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the X-X direction. In order to better dissipate heat to the device to be charged, the first heat dissipation assembly 140 may further include a first semiconductor cooler 144, and the first semiconductor cooler 144 includes a first cooling end 1442 and a first heating end 1444 arranged oppositely. The cooling end 1442 is located in the first sub-cavity 1322 , and the first heating end 1444 is located in the second sub-cavity 1324 . The first semiconductor cooler 144 (Thermo Electric Cooler) is made by utilizing the Peltier effect of semiconductor materials. The so-called Peltier effect refers to the phenomenon that when a DC current passes through a galvanic couple composed of two semiconductor materials, one end absorbs heat and one end releases heat. The heavily doped N-type and P-type bismuth telluride is mainly used as the semiconductor material of the TEC, and the bismuth telluride element is electrically connected in series and generates heat in parallel. The TEC consists of a number of P-type and N-type pairs (groups), which are connected together by electrodes and sandwiched between two ceramic electrodes; when a current flows through the TEC, the heat generated by the current is transferred from one side of the TEC to the On the other side, the "hot" side (ie the heating end) and the "cold" side (ie the cooling end) are generated on the TEC, which is the heating and cooling principle of the TEC.

When the first cooling fan 142 is running, the airflow between the first air guide 1222 and the second air guide 1224 passes through the first cooling end 1442, which can also be understood as the first air guide 1222, the first cooling fan 142 and the second guide The tuyere 1224 forms an air channel passing through the first cooling end 1442 . That is, the air blown to the device to be charged is the air cooled by the first cooling end 1442, which can better dissipate heat to the device to be charged. It should be noted that the first sub-cavity 1322 and the second sub-cavity 1324 can be isolated by a support plate, and the heat of the first heating end 1444 in the second sub-cavity 1324 will not or rarely be transferred to the first sub-cavity in body 1322. Specifically, the support plate may be provided with a through hole through which the first semiconductor cooler 144 passes, the first cooling end 1442 is located in the first sub-cavity 1322 , and the first heating end 1444 is located in the second sub-cavity 1324 . There is no gap or a small gap between the first semiconductor refrigerator 144 and the support plate, wherein, the gap between the first semiconductor refrigerator 144 and the support plate can be realized by means of interference fit, filling with adhesive, connection through elastic parts, etc. gap. The first semiconductor cooler 144 can also be disposed adjacent to the first air guide port 1222, that is, when the outside air enters the first cavity 132, part of the outside air enters the first sub-cavity 1322 through the first refrigeration end 1442, and part of the air passes through the first sub-cavity 1322. The heating end 1444 enters the second sub-cavity 1324 and is isolated from each other. It should be noted that, because the first heating end 1444 generates heat, the first heating end 1444 needs to be dissipated. For example, heat dissipation holes may be added to dissipate heat to the first heating end 1444 . A second heat sink can also be added, and the second heat sink is attached to the first heating end 1444 to increase the heat dissipation area so as to dissipate heat to the first heating end 1444 . It should be noted that other heat dissipation methods, such as adding a fan, may also be used to dissipate heat to the first heating end 1444, which is not limited herein.

The support plate 1228 may be made of a material that does not conduct heat to prevent the heat in the second sub-cavity 1324 from being transferred to the first sub-cavity 1322 .

The support plate can also be used to support the first heat dissipation fan, that is, the first heat dissipation fan is installed on the support plate. The control circuit board can be installed on the bottom edge of the first sub-housing, or can be installed on the support plate.

The first cavity 132 and the second cavity 134 in the housing 120 may be completely isolated. Specifically, the casing 120 further includes an isolation plate 126 , and the isolation plate 126 separates the space in the casing 120 to form a first cavity 132 and a second cavity 134 , which can also be understood as the isolation plate 126 and the first cavity 134 . The sub-shell 122 forms the first cavity 132 ; the isolation plate 126 and the second sub-shell 124 form the second cavity 134 . The two isolated cavities do not affect each other, and can better dissipate heat to the device to be charged and the wireless charging unit 160 respectively. The isolation plate 126 can be an independent component, or can be integrally formed with other components, such as integrally formed with the support plate. It should be noted that, in some other embodiments, the first cavity and the second cavity may not be completely isolated, and the first cavity and the second cavity may be partially connected. For example, the isolation plate is not connected to a partial area of the inner surface of the casing, or the isolation plate is provided with through holes or the like. One of the cavities can use the other cavity to dissipate heat. For example, the air entering the first air guide port of the first cavity can also enter the second cavity and take away the heat of the wireless charging part in the second cavity. For another example, the first cavity is divided into a first sub-cavity and a second sub-cavity, the first sub-cavity is not communicated with the second sub-cavity, and the second sub-cavity is communicated with the second sub-cavity and enters the second sub-cavity The air in the body can also enter the second cavity and leave the space in the casing through the second cavity, and when passing through the second sub-cavity, the heat of the control circuit board in the second sub-cavity can be taken away. For another example, the air in the second cavity can enter the second sub-cavity and leave the wireless charging device through the heat dissipation hole of the second sub-cavity, so that the heat in the second cavity can be dissipated more quickly.

Please refer to FIG. 6 and FIG. 7 , FIG. 6 is an exploded schematic view of the wireless charging device shown in FIG. 1 , and FIG. 7 is another schematic cross-sectional view of the wireless charging device shown in FIG. 1 in the Y-Y direction. The second heat dissipation assembly 180 may include a second heat dissipation fan 182 , and the second heat dissipation fan 182 is used to dissipate heat to the wireless charging unit 160 . In order to better dissipate heat to the wireless charging unit 160 , the second heat dissipation assembly may further include a second semiconductor cooler 184 and a second heat dissipation fan 182 . The second semiconductor refrigerator 184 includes a second cooling end 1842 and a second heating end 1844 disposed opposite to each other, and the second cooling end 1842 is adjacent to the wireless charging unit 160 . The second cooling fan 182 is used to dissipate heat to the second heating end 1844 . The second cooling end 1842 is adjacent to the wireless charging unit 160, and takes away the heat generated by the wireless charging unit 160, so that the wireless charging unit 160 is always kept at a low temperature and continues to work efficiently. It should be noted that a temperature sensor can be provided in the wireless charging part 160, and the temperature of the wireless charging part 160 can always be controlled within an appropriate temperature range (eg, between 16-25° C.) through the second semiconductor cooler 184, so that the wireless charging The heat of the part 160 will not or reduce to be conducted to the device to be charged, and at the same time cooperate with the first heat dissipation component 140 to make the battery of the device to be charged meet the fast charging temperature requirement (eg, the battery fast charging requirement is 15-35 degrees).

It can be understood that if the temperature of the wireless charging device 100 is too high during the wireless charging process, or the temperature of the device to be charged is too high, it is necessary to cool the device with high temperature, such as reducing the wireless charging power or suspending the wireless charging. The power is used for wireless charging for a long time. In the embodiment of the present application, the first heat dissipation component 140 cooperates with the first housing 120 to dissipate heat for the device to be charged, and the second heat dissipation component 180 cooperates with the second housing 120 to wirelessly charge the wireless charging device 100. The heat dissipation of the part 160 can keep the wireless charging device 100 and the device to be charged within a suitable temperature range for a long time, provide high-power wireless charging, improve charging efficiency, and shorten charging time.

It should be noted that the control circuit board 170 in the wireless charging device 100 can be connected to a temperature sensor, and when the temperature acquired by the temperature sensor is within a suitable temperature range, the control circuit board 170 controls the wireless charging unit 160 to perform high-power wireless charging; When the temperature acquired by the temperature sensor is outside the appropriate temperature range, the control circuit board 170 controls the wireless charging unit 160 to perform low-power wireless charging or suspend wireless charging to protect the wireless charging device 100 .

In order to better dissipate heat to the wireless charging device 100, the second heat dissipation assembly may further include a second semiconductor cooler 184, and the first heat sink 186 is disposed between the second semiconductor cooler 184 and the second heat dissipation fan 182, and is adjacent to the second semiconductor cooler 184. The second heating end 1844 of the two semiconductor refrigerators 184 . The second sub-shell 124 is provided with a third air guide port 1244 and a fourth air guide port 1246 . When the second cooling fan 182 is running, the airflow between the third air guide port 1244 and the fourth air guide port 1246 passes through the first heat sink 186 , it can also be understood that the third air guide 1244 , the second cooling fan 182 and the fourth air guide 1246 form an air duct passing through the first heat sink 186 .

The second cooling fan 182 draws the air outside the casing 120 from the third air guide 1244 into the cavity, and after the air flows through the surface of the first heat sink 186 for heat exchange, the hot air is blown out from the fourth air guide 1246 to reach the second cooling fan 1246. The purpose of the heat exchange of the heat sink 186 is to dissipate heat to the second heating end 1844 . In this way, a good air circulation can be formed in the first cavity 132 to ensure that the wireless charging unit 160 is always in a lower temperature range and an efficient working mode, so that high-power wireless charging can be continuously performed until the high-power wireless charging ends. The third air guide port 1244 may be located at the bottom edge of the second sub-shell 124 , and the fourth air guide port 1246 may be located at the side edge of the second sub-shell 124 . A support portion can be provided at the bottom of the casing to separate the main body of the casing from the placement surface, so as to facilitate the entry of air into the casing from the third air guide port on the bottom edge of the main body of the casing. In some other embodiments, the third air guide port may be located on the side of the second sub-housing, and the fourth air guide port may be located on the bottom edge of the second sub-housing.

It can be understood that the first heat sink can have one or more heat dissipation grooves, and the one or more heat dissipation grooves can increase the heat dissipation area of the first heat sink. When the second heat dissipation fan is running, the first heat sink and more The heat of the first heat sink can be transferred to the air faster, so that the heat of the first heat sink can be conducted to the outside of the casing faster.

It should be noted that, in some other embodiments, the second heat dissipation assembly may not include at least one of the second semiconductor cooler and the first heat dissipation fin.

The second sub-shell may be provided with a matching structure corresponding to the protrusion of the first sub-shell.

The wireless charging device may be referred to as a wireless charging base in some embodiments.

Please refer to FIG. 8 , which is a schematic structural diagram of a wireless charging system provided by an embodiment of the present application. The wireless charging system 10 includes a wireless charging device 100 and a device to be charged 200 . The device to be charged 200 is disposed on the wireless charging device 100 , the wireless charging device 100 is used for wirelessly charging the device 200 to be charged, and the wireless charging device 100 is the wireless charging device in any of the above embodiments. The device to be charged includes a wireless charging module, and the wireless charging module includes a wireless receiving coil. When the device to be charged and the wireless charging device are wirelessly charged, the wireless receiving coil of the device to be charged and the wireless transmitting coil of the wireless charging part of the wireless charging device are at least partially Relative settings. It can be understood that when the wireless transmitting coil and the wireless receiving coil are arranged oppositely, wireless charging can also be performed, but the wireless charging efficiency is low. When the wireless transmitting coil and the wireless receiving coil are set opposite to each other, the wireless charging efficiency is higher.

Exemplarily, the device to be charged can be placed on the wireless charging device for wireless charging, and the wireless charging device includes a bearing portion that carries the device to be charged, and a wireless transmitting coil can be set under the bearing portion, and the housing of the device to be charged also corresponds to There is a wireless receiving coil. When the device to be charged is placed on the carrying part, the wireless transmitting coil and the wireless receiving coil can be set relative to each other (that is, the orthographic projections of the wireless transmitting coil and the wireless receiving coil on the carrying part overlap), and they are mutually The distance is very small, which is conducive to the energy transmission between the wireless transmitting coil and the wireless receiving coil, and improves the efficiency of wireless charging.

Please refer to FIGS. 9 and 10 . FIG. 9 is a schematic structural diagram of a device to be charged provided by an embodiment of the present application, and FIG. 10 is a schematic diagram of another side of the device to be charged shown in FIG. 9 . The device to be charged is described by taking a mobile phone as an example. The device to be charged 200 further includes a display screen 210 , a casing 220 , a circuit board 230 , a battery 240 and a wireless charging module 260 .

The housing 220 includes a frame 222 and a back cover 224 . The display screen 210 and the back cover 224 are located on opposite sides of the device to be charged 200 . The device to be charged 200 further includes a middle plate, and a frame 220 is arranged around the middle plate, wherein the frame 220 and the middle plate can form a middle frame of the device to be charged 200 . The middle plate and the frame 220 each form a receiving cavity on both sides of the middle plate, one of which is accommodating the display screen 210 , and the other accommodating cavity is accommodating the circuit board 230 , the battery 240 , the wireless charging module 260 and other components of the device to be charged 200 . Electronic components or functional modules.

The middle plate can be a thin plate-like or flake-like structure, and can also be a hollow frame structure. The middle frame is used to provide support for the electronic components or functional components in the device to be charged 200 , so as to mount the electronic components and functional components in the device to be charged 200 together. Functional components such as the camera assembly, the receiver, the circuit board, the battery, and the wireless charging module of the device to be charged 200 can be installed on the middle frame or the circuit board 230 for fixing. It can be understood that the material of the middle frame may include metal or plastic.

The circuit board 230 may be mounted on the middle frame. The circuit board 230 may be the main board of the device to be charged 200 . The circuit board 230 may be integrated with one or more functional components such as a microphone, a speaker, an earphone interface, a camera component, an acceleration sensor, a gyroscope, and a processor. Meanwhile, the display screen 210 can be electrically connected to the circuit board 230 to control the display of the display screen by the processor on the circuit board 230 .

The battery 240 may be mounted on the middle frame. Meanwhile, the battery 240 is electrically connected to the circuit board 230 , so that the battery 240 supplies power to the device to be charged 200 . The circuit board 230 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 240 to various electronic components in the device to be charged 200 .

The wireless charging module 260 is electrically connected to the battery 240 , and the wireless charging module 260 receives energy from the wireless charging device and converts the received energy into electrical energy, which is used to charge the battery 240 . Both the wireless charging module 260 and the battery 240 will heat up during the wireless charging process, and the first heat dissipation component of the wireless charging device can dissipate heat to the wireless charging module 260 and the battery 240, so that the temperature of the wireless charging module 260 and the battery 240 is in a suitable range ( For example, 15-35 degrees), the wireless charging module 260, the battery 240 and the wireless charging device can all be in a suitable temperature range during the wireless charging process, and can be wirelessly charged with high power for a long time. The wireless charging module 260 includes a wireless charging part, and the wireless charging part can be disposed between the back cover 224 and the battery 240 . The wireless charging part may be disposed adjacent to the back cover 224 , and it can also be understood that the wireless charging part is installed on the inner surface of the back cover 224 .

The display screen 210 forms a display surface of the device 200 to be charged, and is used to display information such as images and texts. The display screen 210 may be a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode (Organic Light-Emitting Diode, OLED) type display screen.

The display screen 210 may be a special-shaped screen, and the display screen 210 may include a display area 212 and a non-display area 214 . The display area 212 performs the display function of the display screen 210 for displaying information such as images and texts. The non-display area 214 does not display information, and the non-display area 214 is used to cooperate with the front camera module 282 to work. For example, the non-display area 214 is a highly light-transmitting area, and the front camera module 282 can acquire images of the outside world through the non-display area 214 , such as taking pictures, taking pictures, and the like. In some other embodiments, the display screen may be a full screen, that is, the front of the display screen is basically a display area, the display areas of the display screen are the same, and the front camera module may use a driving mechanism to move from the device to be charged to the Shooting outside the device to be charged. The display area of the display screen can also include a main display area and a sub-display area. The light transmittance of the sub-display area is greater than that of the main display area. The front camera module is set corresponding to the sub-display area. Below, the secondary display area can display images in conjunction with the main display area. When the secondary display area does not display images, the camera module can take pictures through the secondary display area. Exemplarily, the non-display area shown in FIG. 9 can be replaced with a secondary display area. Display area.

The device to be charged 200 further includes a rear camera module 284 , the rear cover 224 is provided with a light-transmitting area corresponding to the rear camera module 284 , and the rear camera module 284 can obtain images of the outside world through the light-transmitting area of the rear cover 224 .

In the description of this application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of this application, "plurality" means two or more.

The wireless charging device and the wireless charging system provided by the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein by using specific examples, and the descriptions of the above embodiments are only used to help the understanding of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation to the present application.

Claims (12)

1. A wireless charging device for charging a device to be charged, wherein the wireless charging device comprises: case; a first heat dissipation component disposed in the housing, and the first heat dissipation component is used to dissipate heat to the device to be charged; a wireless charging part, disposed in the casing, and the wireless charging part is used for wirelessly charging the device to be charged; and A second heat dissipation assembly is disposed in the casing, and the second heat dissipation assembly is used for dissipating heat to the wireless charging unit. 2 . The wireless charging device according to claim 1 , wherein the housing comprises a first sub-housing and a second sub-housing, the first sub-housing is provided with a first cavity, and the The second sub-shell is provided with a second cavity; The first heat dissipation component is disposed in the first cavity, and both the wireless charging unit and the second heat dissipation component are disposed in the second cavity. 3 . The wireless charging device according to claim 2 , wherein the first heat dissipation component comprises a first heat dissipation fan, and the first sub-shell is provided with a first air guide port and a second air guide port; 3 . The first cooling fan is located in the first cavity, and after the airflow enters the first air guide, it enters the first heat dissipation fan, and then flows from the second air guide to the device to be charged. 4 . The wireless charging device according to claim 3 , wherein the second sub-housing comprises a carrying portion, and the carrying portion is used for carrying the device to be charged; 4 . The first sub-housing includes a protrusion protruding from the bearing portion, and the second air guide port is disposed at a position of the protrusion and facing the device to be charged. 5 . The wireless charging device according to claim 3 or 4 , wherein the first air guide port and the second air guide port are disposed on opposite sides of the first sub-housing. 6 . 6. The wireless charging device according to claim 3 or 4, wherein the wireless charging device further comprises a control circuit board, the control circuit board is electrically connected with the wireless charging part, and the control circuit board is arranged in the first sub-shell. 7 . The wireless charging device according to claim 6 , wherein the housing further comprises a support plate located in the first sub-housing, the first sub-housing comprises a first cavity, and the The supporting plate divides the first cavity into a first sub-cavity and a second sub-cavity, the first cooling fan is located in the first sub-cavity, and the first air guide and the second air guide are The first sub-cavity is in communication, and the control circuit board is located in the second sub-cavity. 8 . The wireless charging device according to claim 7 , wherein the first heat dissipation component further comprises a first semiconductor cooler, and the first semiconductor cooler comprises a first cooling end and a first heating end arranged oppositely. 9 . , the first cooling end is located in the first sub-cavity, and the first heating end is located in the second sub-cavity; When the first cooling fan operates, the airflow between the first air guide port and the second air guide port passes through the first cooling end. 9 . The wireless charging device according to claim 2 , wherein the casing further comprises an isolation plate, the isolation plate is arranged in the casing, and the isolation plate divides the space in the casing into various parts. 10 . the first cavity and the second cavity. 10. The wireless charging device according to claim 2 or 9, wherein the second heat dissipation component comprises a second semiconductor cooler and a second heat dissipation fan; The second semiconductor refrigerator includes a second cooling end and a second heating end arranged opposite to each other, and the second cooling end is adjacent to the wireless charging part; The second cooling fan is used to dissipate heat to the second heating end. 11 . The wireless charging device according to claim 10 , wherein the second heat dissipation assembly further comprises a first heat dissipation fin, and the first heat dissipation fin is disposed on the second semiconductor cooler and the second heat dissipation fin. 12 . between the cooling fans and adjacent to the second heating end of the second semiconductor refrigerator; The second sub-shell is provided with a third air guide port and a fourth air guide port. When the second cooling fan is running, the air flow between the third air guide port and the fourth air guide port passes through the first air guide port. a heat sink. 12. A wireless charging system, comprising: a device to be charged, the device to be charged is the device to be charged according to any one of claims 1-10, the device to be charged comprising a wireless receiving coil; A wireless charging device, the wireless charging device is the wireless charging device according to any one of claims 1-10, the wireless charging part of the wireless charging device includes a wireless transmitting coil, when the wireless charging device is connected to the wireless charging device When the device to be charged is wirelessly charged, the wireless transmitting coil and the wireless receiving coil are at least partially opposite to each other.

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