Wireless charging device
By introducing cooling components and heat dissipation devices into the wireless charging device, the problem of poor heat dissipation in the wireless charging device is solved, and fast charging effect is achieved.
Patent Information
- Application Number
- CN202520253065.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing wireless charging devices have poor heat dissipation during charging, which prevents them from achieving fast charging.
The design incorporates a cooling component, a heat dissipation assembly, and a charging coil assembly. The cooling component contains a cooling liquid, and the heat dissipation assembly includes a heat-conducting plate and a semiconductor cooling plate. Combined with a fan and heat dissipation holes, it achieves effective heat conduction and dissipation.
Through effective heat dissipation design, electronic devices maintain a low temperature during charging, enabling fast charging.
Smart Images
Figure CN223584598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charger technology, and in particular to a wireless charging device. Background Technology
[0002] With the increasing prevalence of electronic products such as mobile phones, it's necessary to recharge them promptly when the battery is depleted. Wireless chargers are becoming increasingly popular because they allow charging without a cable. However, the phone gets hot during charging. Current wireless charging technology generally has limited heat dissipation capabilities, which cannot guarantee fast charging.
[0003] Therefore, a wireless charging device is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a wireless charging device that can effectively dissipate heat from the product being charged, ensuring heat dissipation and thus enabling fast charging.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] Wireless charging device, including:
[0007] The front panel has mounting grooves and receiving cavities that communicate with each other on opposite sides.
[0008] A cooling component, wherein the cooling component is disposed in the mounting groove and contains a cooling liquid;
[0009] A heat dissipation assembly is disposed in the receiving cavity and is in contact with the cooling component;
[0010] A charging coil assembly disposed in the receiving cavity;
[0011] A rear cover is provided over the opening of the receiving cavity.
[0012] In some embodiments, the cooling element includes a flexible sealing bag in which the cooling liquid is contained.
[0013] In some embodiments, the heat dissipation assembly includes a heat-conducting sheet and a thermoelectric cooler, the heat-conducting sheet being disposed in the receiving cavity and in contact with the cooling element, and the thermoelectric cooler being in contact with the side of the heat-conducting sheet opposite to the cooling element.
[0014] In some embodiments, the heat dissipation assembly further includes a heat sink disposed at one end of the thermoelectric cooler away from the heat-conducting sheet.
[0015] In some embodiments, the heat sink has a plurality of heat dissipation fins on the side of the heat sink away from the semiconductor cooling chip.
[0016] In some embodiments, the rear cover is provided with heat dissipation holes, which are disposed opposite to the heat dissipation component.
[0017] In some embodiments, a main circuit board is also included, which is disposed in the receiving cavity and is electrically connected to the charging coil assembly.
[0018] In some embodiments, the main circuit board has integrated connection terminals that extend relative to the rear cover.
[0019] In some embodiments, ventilation holes are provided on the rear cover, and a fan is provided on the side of the rear cover facing the charging coil assembly.
[0020] In some embodiments, an NFC circuit board is also included, which is disposed in the receiving cavity.
[0021] The beneficial effects of this utility model are:
[0022] This utility model provides a wireless charging device with interconnected mounting slots and receiving cavities on opposite sides of the front panel. A cooling component containing cooling liquid is disposed in the mounting slot. A heat dissipation assembly is disposed in the receiving cavity and is in close contact with the cooling component. A charging coil assembly is disposed in the receiving cavity, and a back cover is disposed at the opening of the receiving cavity. During charging, the electronic device is placed on the cooling component with its back in close contact with it. The heat generated by the electronic device is conducted to the cooling liquid, and the heat in the cooling liquid is dissipated through the heat dissipation assembly. Because the electronic device can remain at a low temperature during charging, fast charging is achieved. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram from one perspective of a wireless charging device according to this utility model;
[0025] Figure 2 This is a schematic diagram from another perspective of a wireless charging device according to this utility model;
[0026] Figure 3This is an exploded view of a wireless charging device according to this utility model.
[0027] In the picture:
[0028] 100. Electronic products; 1. Front panel; 11. Mounting slot; 2. Cooling component; 3. Heat dissipation assembly; 31. Thermal conductive sheet; 32. Heat sink; 321. Heat dissipation fins; 33. Semiconductor cooling chip; 4. Charging coil assembly; 5. Main circuit board; 51. Connection terminal; 6. Back cover; 61. Heat dissipation hole; 62. Ventilation hole; 7. NFC circuit board. Detailed Implementation
[0029] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.
[0030] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0031] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0032] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0033] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.
[0034] During the charging process of electronic products, in order to effectively dissipate heat from the product being charged and ensure heat dissipation effect, thereby achieving fast charging, such as... Figures 1-3 As shown, this utility model provides a wireless charging device. The wireless charging device includes a front panel 1, a cooling component 2, a heat dissipation assembly 3, a charging coil assembly 4, and a rear cover 6.
[0035] The front panel 1 has interconnected mounting grooves 11 and receiving cavities on opposite sides. A cooling element 2 is disposed in the mounting groove 11 and contains cooling liquid. A heat dissipation assembly 3 is disposed in the receiving cavity and is attached to the cooling element 2. A charging coil assembly 4 is disposed in the receiving cavity. A rear cover 6 covers the opening of the receiving cavity.
[0036] During charging, the electronic device is placed on the cooling component 2, with its back in close contact with the cooling component 2. The heat generated by the electronic device is conducted into the cooling liquid, and the heat in the cooling liquid is dissipated through the heat dissipation component 3. Because the electronic device is in a low-temperature state during charging, fast charging is possible.
[0037] In some embodiments, the cooling component 2 includes a flexible sealing bag containing cooling liquid. Specifically, the flexible sealing bag is made of a high-strength plastic film. With this configuration, because the flexible sealing bag is very soft and can perfectly conform to the shape of the charging product, the heat generated during charging is quickly conducted to the cooling liquid, keeping the charging product at a low temperature and enabling rapid charging.
[0038] In some embodiments, the heat dissipation assembly 3 includes a heat-conducting plate 31 and a thermoelectric cooler 33. The heat-conducting plate 31 is disposed in the receiving cavity and is attached to the cooling element 2. The thermoelectric cooler 33 is attached to the side of the heat-conducting plate 31 opposite to the cooling element 2. Because the heat-conducting plate 31 is attached to the cooling element 2, the heat of the cooling liquid in the cooling element 2 is conducted to the thermoelectric cooler 33. The thermoelectric cooler 33 is a novel cooling device that achieves cooling through the Peltier effect. It can directly cool the heat-conducting plate 31, thereby achieving efficient cooling and ensuring that the temperature of the cooling liquid in the cooling element 2 remains low, effectively cooling the charging product.
[0039] In some embodiments, the heat dissipation assembly 3 further includes a heat sink 32, which is disposed at the end of the thermoelectric cooler 33 facing away from the heat-conducting plate 31. During operation, the side of the thermoelectric cooler 33 that engages with the heat-conducting plate 31 is in a cooling state, while the side facing away from the heat-conducting plate 31 is in a heating state. By providing the heat sink 32, the heat generated by the thermoelectric cooler 33 can be dissipated, thereby preventing heat accumulation inside the wireless charging device and avoiding overheating, thus ensuring the safety of the wireless charging device.
[0040] In some embodiments, the heat sink 32 has multiple heat dissipation fins 321 on the side facing away from the thermoelectric cooler 33. By providing multiple heat dissipation fins 321, the heat dissipation area in contact with the external gas can be increased, thereby ensuring the heat dissipation effect. In this embodiment, both the heat sink 32 and the heat dissipation fins 321 are made of metal materials with high thermal conductivity, which can quickly exchange heat with the thermoelectric cooler 33, thereby realizing rapid heat conduction from the thermoelectric cooler 33.
[0041] In some embodiments, the rear cover 6 has heat dissipation holes 61, which are disposed opposite to the heat sink 32. By providing heat dissipation holes 61, the heat sink 32 can be in direct contact with the outside atmosphere, thereby allowing the heat on the heat sink 32 to be quickly dissipated through heat exchange. In this embodiment, multiple heat dissipation holes 61 are provided on the rear cover 6, and the heat dissipation holes 61 are strip-shaped to ensure ventilation.
[0042] In some embodiments, the wireless charging device further includes a main circuit board 5, which is disposed in the receiving cavity and electrically connected to the charging coil assembly 4. By setting the main circuit board 5 to control the current and voltage of the charging coil assembly 4, different charging power outputs can be achieved when charging the product.
[0043] In some embodiments, the main circuit board 5 integrates a connection terminal 51, which extends relative to the rear cover 6. The connection terminal 51 facilitates connection to an external power source.
[0044] In some embodiments, a ventilation hole 62 is provided on the back cover 6, and a fan is provided on the side of the back cover 6 facing the charging coil assembly 4. Specifically, in this embodiment, the fan and the ventilation hole 62 are directly opposite each other. The air inlet of the fan is opposite to the ventilation hole 62. During the rotation of the fan, outside air is drawn in through the ventilation hole 62. The outside air flows through the main circuit board 5 and the heat sink 32 and is discharged from the heat dissipation hole 61. By providing a fan, the air flow can be accelerated, thereby quickly removing the heat generated by the heat sink 32 and the main circuit board 5, ensuring the safety of the wireless charging device and eliminating the risk of thermal runaway.
[0045] In some embodiments, the wireless charging device further includes an NFC circuit board 7 disposed within the receiving cavity. NFC (Near Field Communication) is a short-range, high-frequency wireless communication technology. The NFC circuit board 7 provides NFC detection functionality.
[0046] When charging an electronic product 100 using this wireless charging device, the back of the electronic product 100 (such as a mobile phone) is placed on the cooling component 2 for charging. The cooling component 2, which contains cooling liquid, is in close contact with the back of the electronic product 100. The heat of the electronic product 100 is transferred downwards, and the cooling liquid transfers the heat to the heat-conducting plate 31. The heat-conducting plate 31 then transfers the heat to the cold end of the semiconductor cooling chip 33. The heat from the heat-generating end of the semiconductor cooling chip 33 is carried away by the heat sink 32. Finally, the heat from the heat sink 32 is carried away by the fan, thereby keeping the electronic product 100 at a low temperature at all times and achieving long-term fast charging.
[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A wireless charging device, characterized by, The utility model relates to a kind of cooling device, including: Front panel (1), the opposite sides of the front panel (1) have installation slot (11) and accommodating cavity that intercommunicate; Cooling piece (2), the cooling piece (2) is arranged in the installation slot (11), and the cooling piece (2) has cooling liquid in it; Heat dissipation assembly (3), the heat dissipation assembly (3) is arranged in the accommodating cavity, and is attached to the cooling piece (2); Charging coil assembly (4), the charging coil assembly (4) is arranged in the accommodating cavity; Rear cover (6), the rear cover (6) is covered in the opening of the accommodating cavity.
2. The wireless charging device of claim 1, wherein, The cooling piece (2) includes flexible sealing bag, and the cooling liquid is contained in the flexible sealing bag.
3. The wireless charging device of claim 1, wherein, The heat dissipation assembly (3) includes heat-conducting sheet (31) and semiconductor refrigeration sheet (33), the heat-conducting sheet (31) is arranged in the accommodating cavity, and is attached to the cooling piece (2), and the semiconductor refrigeration sheet (33) is attached to the side of the heat-conducting sheet (31) away from the cooling piece (2).
4. The wireless charging device of claim 3, wherein, The heat dissipation assembly (3) further includes heat dissipation piece (32), and the heat dissipation piece (32) is arranged at one end of the semiconductor refrigeration sheet (33) away from the heat-conducting sheet (31).
5. The wireless charging device of claim 4, wherein, The side of the heat dissipation piece (32) away from the semiconductor refrigeration sheet (33) is provided with a plurality of heat dissipation fins (321).
6. The wireless charging device of claim 4, wherein, The rear cover (6) is provided with heat dissipation hole (61), and the heat dissipation hole (61) is arranged opposite to the heat dissipation piece (32).
7. The wireless charging device of claim 1, wherein, Further including main circuit board (5), the main circuit board (5) is arranged in the accommodating cavity, and the main circuit board (5) is electrically connected with the charging coil assembly (4).
8. The wireless charging device of claim 7, wherein, The main circuit board (5) is integrated with connecting terminal (51), and the connecting terminal (51) is protruded relative to the rear cover (6).
9. The wireless charging device of any one of claims 1-8, wherein, Vent hole (62) is opened on the rear cover (6), and the side of the rear cover (6) towards the charging coil assembly (4) is provided with fan.
10. The wireless charging device of claim 1, wherein, Further including NFC circuit board (7), the NFC circuit board (7) is arranged in the accommodating cavity.