Wireless charging device with heat dissipation function

Abstract

A wireless charging device with heat dissipation function, comprising: a housing, a heat dissipation fan, a charging module and a heat dissipation module. The housing is provided with an air inlet, a ventilation opening and an air outlet which are communicated with each other according to the direction of air flow; the charging module is arranged in the housing and has a ferrite; the heat dissipation module comprises a fin group and a heat dissipation plate which are in contact with each other and conduct heat, the heat dissipation plate is arranged in the housing and is attached to the ferrite, and the fin group is arranged in the housing and at least a part of the fin group is located in the ventilation opening; the heat dissipation fan is arranged in the housing corresponding to the air inlet; when a portable electronic product is placed on the housing, the airflow generated by the heat dissipation fan blows to at least a part of the fin group through the ventilation opening and is discharged from the air outlet, so that the airflow carries away the heat generated by the charging module. In this way, the effect of effectively dissipating heat of the charging module can be achieved.

Description

Technical Field

[0001] This utility model relates to wireless charging devices, and in particular to a wireless charging device with heat dissipation function. Background Technology

[0002] Wireless chargers generate a lot of heat when they wirelessly transmit signals to charge electronic products. Conventional wireless chargers, such as those in cars, are difficult to dissipate heat because they are enclosed in a casing, which reduces the efficiency of wireless charging.

[0003] Furthermore, the electronic products that are wirelessly charged, which are the receiving end, are placed on the casing of the wireless charger for wireless charging. This causes a large amount of heat that is difficult for the wireless charger to dissipate to be transferred to the electronic products through the casing, resulting in overheating and crashes or slowing down the processing due to overheating.

[0004] Therefore, how to improve upon the shortcomings of the aforementioned prior technologies is a major issue that the creator of this application urgently needs to address. Utility Model Content

[0005] The purpose of this application is to provide a wireless charging device with heat dissipation function, wherein the wireless charging device itself has the function of heat dissipation for the charging module.

[0006] To achieve the above objectives, this application provides a wireless charging device with heat dissipation function for heat dissipation of portable electronic products, comprising: a housing having an air inlet, an air outlet, and a vent connecting and communicating between the air inlet and the air outlet; a charging module disposed within the housing and having a ferrite core; a heat dissipation module comprising a fin assembly in thermal contact with each other and a heat sink, the heat sink being disposed within the housing and attached to the ferrite core, the fin assembly being disposed within the housing and at least a portion of the fin assembly being located within the vent; and a cooling fan disposed within the housing corresponding to the air inlet; wherein the portable electronic product is placed on the housing, and the airflow generated by the cooling fan is blown through the vent toward the at least a portion of the fin assembly and discharged from the air outlet.

[0007] Furthermore, the entire fin assembly is located within the vent, and the heat sink is connected to the fin assembly, through which heat from the ferrite is transferred to the fin assembly.

[0008] Furthermore, the fin group comprises a plurality of heat dissipation fins spaced apart from each other, and the airflow generated by the cooling fan flows between any two adjacent heat dissipation fins.

[0009] Furthermore, the fin assembly is connected to the housing, with one part of the fin assembly located inside the vent of the housing and the other part of the fin assembly exposed outside the housing. The heat sink is separate from the fin assembly and has at least one ventilation hole. The heat sink is indirectly in contact with the fin assembly through the housing. The airflow generated by the cooling fan is blown towards the ferrite through the vent and the at least one ventilation hole.

[0010] Furthermore, the fin group comprises a plurality of heat dissipation fins spaced apart from each other, and the airflow generated by the cooling fan flows between any two adjacent heat dissipation fins of this portion of the fin group.

[0011] Furthermore, it also includes a circuit board on which at least one exposed electronic component is disposed, the exposed electronic component being exposed outside the housing, and the housing also having at least one side exhaust port connected to the vent, the side exhaust port corresponding to the exposed electronic component.

[0012] Furthermore, the outer casing comprises an outer casing body and a shell plate that are combined with each other. The outer casing body is provided with the charging module, the heat dissipation module and the heat dissipation fan. The shell plate has the air outlet. The outer casing body is a metal shell or a plastic shell.

[0013] Furthermore, the charging module includes a coil and the ferrite, with the coil supported on the ferrite.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, this application has the following effects: the heat generated by the charging module will be transferred to the fin assembly through the ferrite and heat sink, and the airflow generated by the cooling fan will be blown to the fin assembly through the vent and discharged from the exhaust port, thus having the effect of heat dissipation for the charging module.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a top-view perspective view of the first embodiment of the wireless charging device of this application.

[0018] Figure 2 This is a perspective view of the first embodiment of the wireless charging device of this application from a low angle.

[0019] Figure 3 This is a cross-sectional schematic diagram of the first embodiment of the wireless charging device of this application.

[0020] Figure 4 This is a top-view perspective view of the second embodiment of the wireless charging device of this application.

[0021] Figure 5 This is a perspective view (one angle) of the second embodiment of the wireless charging device of this application viewed from below.

[0022] Figure 6 This is a perspective view (another angle) of the second embodiment of the wireless charging device of this application viewed from below.

[0023] Figure 7 This is a cross-sectional schematic diagram of the second embodiment of the wireless charging device of this application.

[0024] In the diagram: 1a, 1b: outer shell

[0025] 10a, 10b: Outer shell body

[0026] 11: First Space

[0027] 12: Second Space

[0028] 13: Turning Point Guiding Section

[0029] 2a, 2b: Cooling fans

[0030] 21: Carrier board

[0031] 22: Fan body

[0032] 3a, 3b: Charging module

[0033] 31: Ferrite

[0034] 32: Coil

[0035] 33: Circuit Board

[0036] 331: Exposed electronic components

[0037] 4a, 4b: Heat dissipation modules

[0038] 41: Fin Group

[0039] 411: Heat dissipation fins

[0040] 42, 43: Heat sink

[0041] 431: Ventilation hole

[0042] 5a, 5b: Shell plates

[0043] 51: Air vent

[0044] 52: Side exhaust vent

[0045] 55: Receptacle

[0046] I: Air Inlet

[0047] E: Ventilation opening. Detailed Implementation

[0048] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0050] In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0051] This application provides a wireless charging device with heat dissipation function, which can be applied, for example, to wireless charging in vehicles, but this application is not limited thereto. The wireless charging device with heat dissipation function (hereinafter referred to as "wireless charging device") of this application is used for wireless charging and heat dissipation of portable electronic products. Portable electronic products can be, for example, mobile phones or tablet computers, etc., and this application is not limited thereto; any portable electronic product that requires heat dissipation due to wireless charging is included. Figures 1 to 3 The first embodiment of this application is shown below. Figures 4 to 7 The following is a second embodiment of this application.

[0052] like Figures 1 to 3As shown, the first embodiment of the wireless charging device of this application includes: a housing 1a, a cooling fan 2a, a charging module 3a, and a heat dissipation module 4a.

[0053] The outer casing 1a can be a single-piece structure (not shown in the figure), or it can be as follows: Figures 1 to 3 The two-piece structure (or more than two-piece structure) shown is not limited in this application, but in this embodiment, a two-piece structure is used as an example for explanation.

[0054] The housing 1a includes a housing body 10a and a housing plate 5a assembled together. The housing plate 5a is disposed on the housing body 10a and can be used to carry portable electronic products. Preferably, a receiving groove 55 is formed in the housing plate 5a in a recessed manner, so that the portable electronic product can be received and positioned in the receiving groove 55.

[0055] The outer shell body 10a is a hollow shell with an air inlet I on the shell wall and a ventilation port E inside the shell. The shell plate 5a has a plurality of air outlets 51 that connect to the receiving groove 55, and the ventilation port E connects and communicates between the air inlet I and each air outlet 51.

[0056] In addition, the outer casing 10a is divided into a first space 11 and a second space 12. The ventilation port E connects the first space 11 and the second space 12, and the air inlet I is opened in the second space 12.

[0057] The charging module 3a is disposed in the first space 11 and includes a ferrite 31, a coil 32 and a circuit board 33. The coil 32 is supported on the ferrite 31 and is located adjacent to the housing plate 5a at the position corresponding to the receiving slot 55, so as to facilitate wireless charging of portable electronic products through the housing plate 5a.

[0058] The cooling fan 2a is disposed in the second space 12 and includes a carrier plate 21 and a fan body 22. The carrier plate 21 is fixed to the outer casing 10a, and the fan body 22 is rotatably connected to the carrier plate 21. After the fan body 22 rotates, it will introduce outside air into the second space 12 from the air inlet I.

[0059] The heat dissipation module 4a is made of thermally conductive metal and is also located within the first space 11. It includes a fin assembly 41 and a heat sink 42 that are connected to each other (e.g., integrally connected). The fin assembly 41 is located on the outer casing 10a and is correspondingly located within the vent E. The heat sink 42 extends from the fin assembly 41 and is attached to the ferrite 31, so that the heat energy of the coil 32 is transferred to the heat sink 42 via the ferrite 31, and then transferred from the heat sink 42 to the fin assembly 41.

[0060] It should be noted that the fin group 41 includes a plurality of heat dissipation fins 411 spaced apart from each other, so as to form a channel (not indicated) for airflow between any two adjacent heat dissipation fins 411, and each channel is connected between the air inlet I and the air outlet 51.

[0061] In this way, such as Figure 3 As shown, when a user places a portable electronic product (not shown) in the receiving slot 55 and the charging module 3a wirelessly charges the portable electronic product, the heat generated by the coil 32 will be transferred to the heat sink 42 via the ferrite 31, and then transferred from the heat sink 42 to the fin assembly 41. At this time, the airflow generated by the cooling fan 2a will blow towards the fin assembly 41 through the vent E, allowing the airflow to pass through the channels of the fin assembly 41, thereby carrying away the heat on the fin assembly 41 and dissipating it from the air outlet 51. This achieves heat dissipation of the charging module 3a, so that the wireless charging device of this application will no longer cause the portable electronic product to overheat due to the charging module 3a not being cooled.

[0062] Ideally, such as Figures 1 to 3 As shown, the outer casing 10a may also have a turning guide part 13, which is connected between the first space 11 and the second space 12 at the position corresponding to the vent E, so as to smoothly guide the airflow from the horizontal direction originally from the fan body 22 to the vertical direction and discharge it from the air outlet 51.

[0063] Furthermore, the outer casing 10a can be a plastic casing or a metal casing, while the shell plate 5a can be a plastic casing. When the outer casing 10a is a metal casing, some of the heat inside the shell will be conducted to the outer casing 10a, enabling the outer casing 10a to bear some of the heat dissipation.

[0064] like Figures 4 to 7 As shown, this is a second embodiment of the wireless charging device of this application. The second embodiment is largely the same as the first embodiment described above and also includes: a housing 1b, a cooling fan 2b, a charging module 3b, and a heat dissipation module 4b. The structures of these components in the second embodiment differ more or less from those in the first embodiment.

[0065] Although the outer casing 1b has structural differences, it also includes the outer casing body 10b and the shell plate 5b assembled together. Although the cooling fan 2b has structural differences, it also includes the carrier plate 21 and the fan body 22 rotatably connected to the carrier plate 21. Although the charging module 3b has structural differences, it also includes the ferrite 31, the coil 32 and the circuit board 33, and the coil 32 is also supported on the ferrite 31.

[0066] The most significant difference lies in the heat dissipation module 4b, which comprises separate fin groups 41 and heat sinks 43. A large portion (or first part) of the fin group 41 is disposed (e.g., integrally molded) on the outer surface of the housing body 10b and exposed to the outside to dissipate heat using outside air. It should be noted that this large portion of the fin group 41 is formed on the bottom surface of the housing body 10b as shown in the figure; a small portion (or second part) of the fin group 41 is located within the vent E to dissipate heat using the airflow generated by the cooling fan 2b. As for the heat sink (which can be a plastic board) 43, it is installed in the first space 11 and attached to the ferrite 31. The heat sink 43 has a number of ventilation holes 431 (which can be elongated holes as shown in the figure). The airflow generated by the cooling fan 2b will first pass through the ventilation port E, and then blow onto the ferrite 31 through each ventilation hole 431, so as to use the airflow blowing onto the ferrite 31 to carry away the heat on the ferrite 31. The heated airflow is finally discharged from the air outlet 51, thus performing the main heat dissipation of the ferrite 31.

[0067] It should be noted that the airflow through the vent E will first flow over the electronic components (without component symbols) on the circuit board 33 before flowing through the ventilation holes 431. Therefore, the airflow generated by the cooling fan 2b can also carry away some of the heat from the electronic components.

[0068] Preferably, the outer casing 10b can be a thermally conductive metal casing, the fin assembly 41 is integrally formed on the outer casing 10b, and the heat sink 43 can also be a thermally conductive metal plate. Moreover, at least two sides of the heat sink 43 can be attached (or connected) to the inner surface of the outer casing 10b within the first space 11. At this time, the heat sink 43 can indirectly contact the fin assembly 41 through the outer casing 10b, so that the heat from the ferrite 31 can be transferred to the outer casing 10b through the heat sink 43, and then transferred to the fin assembly 41 through the outer casing 10b. The large part of the fin assembly 41 exposed to the outside is cooled by the outside air, while the small part of the fin assembly 41 located in the vent E is cooled by the airflow generated by the cooling fan 2b, thus providing additional heat dissipation for the ferrite 31.

[0069] In addition, such as Figures 4 to 6As shown, the outer casing 1b is preferably provided with at least one side exhaust vent 52 connecting the first space 11 and the outside. This application does not limit the number of side exhaust vents 52. In this embodiment, two side exhaust vents 52 are used as an example for explanation. The exhaust direction of each side exhaust vent 52 is approximately perpendicular to the exhaust direction of the air outlet 51. The two exposed electronic components 331 provided on the aforementioned circuit board 33 are located at each side exhaust vent 52 and exposed from the outer casing 1b. This allows the airflow generated by the cooling fan 2b to pass through the ventilation port E. In addition to a portion of the airflow being discharged from the air outlet 51, another portion of the airflow is discharged from each side exhaust vent 52 to remove the heat from each exposed electronic component 331.

[0070] In summary, the wireless charging device with heat dissipation function of this application can indeed achieve the expected use purpose and effect, and can solve the shortcomings of the prior art. Therefore, this patent application is filed.

[0071] The above description is merely a preferred embodiment of this application and does not limit the scope of this application. All equivalent structural changes made using the description and drawings of this application are also included within the scope of this application and are hereby stated.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wireless charging device with heat dissipation function for dissipating heat from a portable electronic product, characterized in that, include: An outer casing is provided with an air inlet, an air outlet, and a ventilation opening connected and communicating between the air inlet and the air outlet; A charging module is disposed within the housing and has a ferrite core; A heat dissipation module includes a fin assembly that is in thermal contact with each other and a heat sink, the heat sink being disposed inside the housing and attached to the ferrite, the fin assembly being disposed in the housing and at least a portion of the fin assembly being located inside the vent. as well as A cooling fan is installed inside the housing corresponding to the air inlet position; The portable electronic product is placed on the housing, and the airflow generated by the cooling fan blows through the vent to at least a portion of the fin assembly and is discharged from the outlet.

2. The wireless charging device with heat dissipation function according to claim 1, characterized in that, The entire fin assembly is located within the vent, and the heat sink is connected to the fin assembly. Heat from the ferrite is transferred to the fin assembly via the heat sink.

3. The wireless charging device with heat dissipation function according to claim 2, characterized in that, The fin group comprises a plurality of heat dissipation fins spaced apart from each other, and the airflow generated by the cooling fan flows between any two adjacent heat dissipation fins.

4. The wireless charging device with heat dissipation function according to claim 1, characterized in that, The fin assembly is connected to the housing. One part of the fin assembly is located inside the vent of the housing, while the other part of the fin assembly is exposed outside the housing. The heat sink is separate from the fin assembly and has at least one ventilation hole. The heat sink is indirectly in contact with the fin assembly through the housing. The airflow generated by the cooling fan is blown towards the ferrite through the vent and the at least one ventilation hole.

5. The wireless charging device with heat dissipation function according to claim 4, characterized in that, The fin group comprises a plurality of heat dissipation fins spaced apart from each other, and the airflow generated by the cooling fan flows between any two adjacent heat dissipation fins of this portion of the fin group.

6. The wireless charging device with heat dissipation function according to claim 4, characterized in that, It also includes a circuit board on which at least one exposed electronic component is disposed, the exposed electronic component being exposed outside the housing, and the housing also having at least one side exhaust port connected to the vent, the side exhaust port corresponding to the exposed electronic component.

7. The wireless charging device with heat dissipation function according to claim 1, characterized in that, The outer casing comprises an outer casing body and a shell plate that are assembled together. The outer casing body is provided with the charging module, the heat dissipation module and the heat dissipation fan. The shell plate has the air outlet. The outer casing body is a metal shell or a plastic shell.

8. The wireless charging device with heat dissipation function according to claim 1, characterized in that, The charging module includes a coil and the ferrite, with the coil supported on the ferrite.

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