Wireless charging shell structure and wireless charging device

Abstract

This disclosure provides a wireless charging housing structure and a wireless charging device. The wireless charging housing structure includes a heat dissipation shell assembly, a sealing shell assembly, an electromagnetic coil module, and a control circuit module. The heat dissipation shell assembly has a receiving groove inside, where the electromagnetic coil module is installed. A heat dissipation hole communicating with the receiving groove is provided on the side wall of the heat dissipation shell assembly, and a fixing block is provided within the heat dissipation hole. The sealing shell assembly is connected to the bottom of the heat dissipation shell assembly and has a mounting groove inside, where the control circuit module is installed. The connection end of the control circuit module is electrically connected to the electromagnetic coil module through a wiring connection hole provided in the sealing shell assembly. The heat dissipation holes on the side wall form a natural convection channel for heat dissipation, improving the heat dissipation effect of the electromagnetic coil module. The electromagnetic coil module and the control circuit module are separated from the heat dissipation shell assembly and the sealing shell assembly, reducing the impact of heat and electromagnetic interference on the control circuit module and reducing external dust contact with the control circuit module.

Description

Technical Field

[0001] This disclosure relates to the technical field of chargers, and in particular to a wireless charging housing structure and a wireless charging device. Background Technology

[0002] The wireless charger includes an electromagnetic coil module and a control circuit board module. The electromagnetic coil module receives external power input through the control circuit module and generates a high-frequency alternating magnetic field, which causes the receiving coil of the charging device to sense the magnetic field and convert it into electrical energy for charging.

[0003] The electromagnetic coil of a wireless charger generates a lot of heat during charging. If the heat cannot be dissipated in time, the electromagnetic coil will overheat, and the heat can easily come into contact with the control circuit board. The control circuit board module is susceptible to heat-related issues, which can lead to safety hazards.

[0004] For example, prior art document CN201822005376.8 discloses an electromagnetic induction wireless charger and an electromagnetic induction wireless charger for mobile phones. The panel of the wireless charger is a graphene panel, a graphene composite panel, or a graphene composite material panel. In this solution, the electromagnetic induction coil and the circuit are in the same cavity, resulting in poor heat dissipation of the casing, and the circuit is easily affected by the heat generated by the electromagnetic induction coil. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a wireless charging housing structure and wireless charging device with better heat dissipation efficiency and better circuit safety.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A wireless charging housing structure includes a heat dissipation housing assembly, a sealing housing assembly, an electromagnetic coil module, and a control circuit module. The heat dissipation housing assembly has a receiving groove, and the electromagnetic coil module is installed in the receiving groove. The side wall of the heat dissipation housing assembly has a heat dissipation hole communicating with the receiving groove. An abutment block is provided in the heat dissipation hole, and the abutment block is used to fix the heat dissipation housing assembly in the mounting hole opened on the mounting surface.

[0008] The sealing shell assembly is connected to the bottom of the heat dissipation shell assembly. The sealing shell assembly has an installation groove inside, and the control circuit module is installed in the installation groove. The sealing shell assembly is used to separate the control circuit module from the electromagnetic coil module. The sealing shell assembly also has a line connection hole that communicates with the receiving groove and the installation groove respectively. The connection end of the control circuit module passes through the line connection hole and is electrically connected to the electromagnetic coil module.

[0009] In one embodiment, the heat sink assembly includes a panel and a heat sink housing, the receiving groove is formed inside the heat sink housing, the panel is disposed on the heat sink housing, and the sealing housing assembly is connected to the end of the heat sink housing opposite to the panel.

[0010] In one embodiment, the inner wall of the heat sink housing is provided with a guide protrusion, and the electromagnetic coil module is provided with a guide groove, the guide protrusion being adapted to be embedded in the guide groove.

[0011] In one embodiment, the inner wall of the heat dissipation housing is further provided with a fixing buckle, which is fastened to the electromagnetic coil module, and the electromagnetic coil module is positioned corresponding to the heat dissipation hole.

[0012] In one embodiment, there are multiple heat dissipation holes and abutment blocks, with every two heat dissipation holes correspondingly arranged along both sides of the heat dissipation shell assembly.

[0013] In one embodiment, the sealing shell assembly includes a sealing shell and a base plate. The sealing shell has an installation groove and is connected to the heat dissipation shell assembly. The base plate is fastened to the end of the sealing shell away from the heat dissipation shell assembly. The sealing shell has a wiring connection hole.

[0014] In one embodiment, the inner wall of the sealed housing is provided with a limiting protrusion, and the control circuit module is provided with a limiting groove, the limiting protrusion being adapted to be embedded in the limiting groove.

[0015] In one embodiment, a connecting buckle protrudes from one end of the sealed housing adjacent to the heat sink assembly, and a fastening groove is formed on the inner wall of the heat sink assembly, and the connecting buckle is installed in the fastening groove.

[0016] In one embodiment, the wireless charging housing structure further includes a connecting wire, the base plate has a wire-passing hole, the connecting wire passes through the wire-passing hole, and the connecting wire is electrically connected to the control circuit module.

[0017] A wireless charging device includes the wireless charging housing structure described in any of the above embodiments.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] In the aforementioned wireless charging housing structure, the heat generated by the electromagnetic coil module is directly transferred to the heat dissipation housing assembly through the receiving slot. The heat dissipation holes on the side wall form a natural convection channel, accelerating heat dissipation and thus improving the heat dissipation effect of the electromagnetic coil module. The electromagnetic coil module and the control circuit module are separated by the heat dissipation housing assembly and the sealing housing assembly, which hinders the heat conduction of the electromagnetic coil module, thereby reducing the impact of heat and electromagnetic interference on the control circuit module and reducing the entry of external dust into the mounting slot to contact the control circuit module, thereby improving the safety performance of the control circuit module. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a wireless charging housing according to one embodiment;

[0022] Figure 2 for Figure 1 A cross-sectional view of the wireless charging housing structure shown.

[0023] Figure 3 for Figure 1 An exploded view of the wireless charging housing structure is shown below.

[0024] Figure 4 for Figure 1 Another exploded view of the wireless charging housing structure shown. Detailed Implementation

[0025] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to 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," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0029] like Figures 1 to 4 As shown, this is a wireless charging housing structure 10 according to an embodiment of the present disclosure, including a heat dissipation housing assembly 100, a sealing housing assembly 200, an electromagnetic coil module 300, and a control circuit module 400. The heat dissipation housing assembly 100 has a receiving groove 101, and the electromagnetic coil module 300 is installed in the receiving groove 101. The side wall of the heat dissipation housing assembly 100 has a heat dissipation hole 102 communicating with the receiving groove 101. An abutment block 110 is provided in the heat dissipation hole 102, and the abutment block 110 is used to fix the heat dissipation housing assembly 100 in the mounting hole opened on the mounting surface.

[0030] Furthermore, the sealing shell assembly 200 is connected to the bottom of the heat dissipation shell assembly 100. The sealing shell assembly 200 has an installation groove 201, and the control circuit module 400 is installed in the installation groove 201. The sealing shell assembly 200 is used to separate the control circuit module 400 from the electromagnetic coil module 300. The sealing shell assembly 200 also has a line connection hole 202 that communicates with the receiving groove 101 and the installation groove 201 respectively. The connection end 310 of the control circuit module 400 passes through the line connection hole 202 and is electrically connected to the electromagnetic coil module 300.

[0031] In this embodiment, the heat sink assembly 100 is snapped into the mounting hole on the mounting surface by the abutment block 110, and the cross-sectional area of ​​the abutment block 110 is smaller than the area of ​​the heat sink hole 102. The charging device is placed on the surface of the heat sink assembly 100 for charging. The control circuit module 400 receives external power input, adjusts the current and drives the electromagnetic coil module 300 to generate a high-frequency alternating magnetic field. The receiving coil of the charging device senses the magnetic field and converts it into electrical energy to complete the wireless charging process. The electromagnetic coil module 300 generates heat due to the high-frequency current. The heat is transferred to the heat sink assembly 100 through the receiving groove 101. The heat sink hole 102 discharges hot air through natural convection to avoid heat accumulation. The sealing shell assembly 200 physically isolates the control circuit module 400 from the electromagnetic coil module 300, so that the control circuit module 400 is installed separately in the mounting groove 201, reducing the electromagnetic interference of the coil magnetic field on the circuit and reducing the entry of dust.

[0032] In the aforementioned wireless charging housing structure 10, the heat generated by the electromagnetic coil module 300 is directly transferred to the heat dissipation housing assembly 100 through the receiving groove 101. The heat dissipation holes 102 on the side wall form a natural convection channel, accelerating heat dissipation and thus improving the heat dissipation effect of the electromagnetic coil module 300. The electromagnetic coil module 300 and the control circuit module 400 are separated by the heat dissipation housing assembly 100 and the sealing housing assembly 200, which hinders the heat conduction of the electromagnetic coil module 300, thereby reducing the impact of heat and electromagnetic interference on the control circuit module 400 and reducing the entry of external dust into the mounting groove 201 to contact the control circuit module 400, thereby improving the safety performance of the control circuit module 400.

[0033] like Figure 3 As shown, in one embodiment, the heat dissipation housing assembly 100 includes a panel 120 and a heat dissipation housing 130. A receiving groove 101 is formed within the heat dissipation housing 130. The panel 120 covers the heat dissipation housing 130, and the heat dissipation housing 130 has heat dissipation holes 102. The sealing housing assembly 200 is connected to the end of the heat dissipation housing 130 opposite to the panel 120. In this embodiment, the surface of the panel 120 is flat, allowing the panel 120 to fit snugly against the charging device. The combination of the panel 120 and the heat dissipation housing 130 achieves efficient heat dissipation and structural protection for the electromagnetic coil module 300.

[0034] like Figure 3 As shown, in one embodiment, the inner wall of the heat dissipation housing 130 is provided with a guide protrusion 131, and the electromagnetic coil module 300 is provided with a guide groove 301. The guide protrusion 131 is adapted to be embedded in the guide groove 301. In this embodiment, the receiving groove 101 of the heat dissipation housing 130 is used to directly support the electromagnetic coil module 300. By cooperating with the guide protrusion 131 and the guide groove 301, it is ensured that the electromagnetic coil module 300 can be quickly and accurately slid into the predetermined position during assembly, so that the electromagnetic coil module 300 is fixed in the position of the heat dissipation housing 130, avoiding the problem of misalignment of the electromagnetic coil module 300.

[0035] like Figure 3As shown, in one embodiment, the inner wall of the heat dissipation housing 130 is further provided with a fixing buckle 132, which is fastened to the electromagnetic coil module 300. The electromagnetic coil module 300 is positioned corresponding to the heat dissipation hole 102. In this embodiment, the electromagnetic coil module 300 is quickly fastened by the elastic deformation of the fixing buckle 132, simplifying the assembly process and improving the installation efficiency of the electromagnetic coil module 300. The electromagnetic coil module 300 is a concentrated heat-generating area, and the position of the electromagnetic coil module 300 corresponding to the heat dissipation hole 102 allows the heat of the electromagnetic coil module 300 to be quickly and directly discharged from the heat dissipation hole 102, thereby improving the heat dissipation efficiency of the electromagnetic coil module 300.

[0036] In one embodiment, the surface of the abutment block 110 is further provided with a wedge-shaped groove. In this embodiment, when the heat sink housing 130 is installed in the mounting hole of the fixed surface, the abutment block 110 reduces the resistance between the abutment block 110 and the inner wall of the fixed hole by providing the wedge-shaped groove 1101, thereby facilitating the installation of the heat sink housing 130 in the fixed hole.

[0037] like Figure 3 and Figure 4 As shown, in one embodiment, there are multiple heat dissipation holes 102 and abutment blocks 110, with each pair of heat dissipation holes 102 correspondingly arranged along both sides of the heat dissipation housing 130. In this embodiment, the symmetrical arrangement of heat dissipation holes 102 on both sides forms convection, accelerating the discharge of hot air from the heat dissipation housing 130. The multiple corresponding heat dissipation holes 102 further accelerate the heat dissipation efficiency, and the multiple abutment blocks 110 make the heat dissipation housing 130 more securely fixed.

[0038] Figure 4 As shown, in one embodiment, the sealing shell assembly 200 includes a sealing shell 210 and a base plate 220. The sealing shell 210 has a mounting groove 201 and is connected to the heat dissipation shell assembly 100. The base plate 220 is fastened to the end of the sealing shell 210 opposite to the heat dissipation shell assembly 100. The sealing shell 210 has a wiring connection hole 202. In this embodiment, the sealing shell 210 and the base plate 220 form a closed mounting groove 201, which completely isolates the control circuit module 400 from the heat source, preventing heat penetration from affecting circuit stability. The fastening between the base plate 220 and the sealing shell 210 facilitates the disassembly of the base plate 220 and the sealing shell 210, and allows for the maintenance of the control circuit module 400.

[0039] like Figure 4As shown, in one embodiment, the inner wall of the sealed housing 210 is provided with a limiting protrusion 211, and the control circuit module 400 has a limiting groove 401, with the limiting protrusion 211 adapted to be embedded in the limiting groove 401. In this embodiment, the engagement of the limiting protrusion 211 and the limiting groove 401 fixes the installation position of the control circuit module 400, preventing the control circuit module 400 from shifting under vibration or impact. The limiting protrusion 211 guides the control circuit module 400, facilitating the installation and maintenance of the control circuit module 400.

[0040] like Figure 4 As shown, in one embodiment, a connecting buckle 212 protrudes from one end of the sealing housing 210 adjacent to the heat sink assembly 100, and a fastening groove 103 is formed on the inner wall of the heat sink assembly 100. The connecting buckle 212 is installed in the fastening groove 103. In this embodiment, the connecting buckle 212 fastens with the fastening groove 103 to prevent the connection from loosening or falling off, thereby improving the stability of the connection and facilitating the quick connection and disassembly of the sealing housing 210 and the heat sink assembly.

[0041] like Figure 1 and Figure 2 As shown, in one embodiment, the wireless charging housing structure 10 further includes a connecting wire 500. The base plate 220 has a wire-passing hole 2201, through which the connecting wire 500 passes. The connecting wire 500 is electrically connected to the control circuit module 400. In this embodiment, the wire-passing hole 2201 adopts a precision positioning design, allowing the connecting wire 500 to be routed along a preset path inside the sealed housing 210. The sealing fit between the wire-passing hole 2201 and the connecting wire 500 enhances the sealing performance, preventing dust or liquid from entering the receiving groove 101.

[0042] This application also provides a wireless charging device, including the wireless charging housing structure 10 described in any of the above embodiments. In this embodiment, a natural convection channel is formed through the heat dissipation holes 102 on the side wall of the wireless charging housing structure 10, which accelerates heat dissipation and improves the heat dissipation effect on the electromagnetic coil module 300, thereby improving the safety performance of the wireless charging device.

[0043] Compared with the prior art, this disclosure has at least the following advantages:

[0044] In the aforementioned wireless charging housing structure 10, the heat generated by the electromagnetic coil module 300 is directly transferred to the heat dissipation housing assembly 100 through the receiving groove 101. The heat dissipation holes 102 on the side wall form a natural convection channel, accelerating heat dissipation and thus improving the heat dissipation effect of the electromagnetic coil module 300. The electromagnetic coil module 300 and the control circuit module 400 are separated by the heat dissipation housing assembly 100 and the sealing housing assembly 200, which hinders the heat conduction of the electromagnetic coil module 300, thereby reducing the impact of heat and electromagnetic interference on the control circuit module 400 and reducing the entry of external dust into the mounting groove 201 to contact the control circuit module 400, thereby improving the safety performance of the control circuit module 400.

[0045] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A wireless charging case structure, characterized in that, The device includes a heat sink assembly, a sealing shell assembly, an electromagnetic coil module, and a control circuit module. The heat sink assembly has a receiving groove inside, and the electromagnetic coil module is installed in the receiving groove. The side wall of the heat sink assembly has a heat dissipation hole communicating with the receiving groove. An abutment block is provided in the heat dissipation hole, and the abutment block is used to fix the heat sink assembly in the mounting hole opened on the mounting surface. The sealing shell assembly is connected to the bottom of the heat dissipation shell assembly. The sealing shell assembly has an installation groove inside, and the control circuit module is installed in the installation groove. The sealing shell assembly is used to separate the control circuit module from the electromagnetic coil module. The sealing shell assembly also has a line connection hole that communicates with the receiving groove and the installation groove respectively. The connection end of the control circuit module passes through the line connection hole and is electrically connected to the electromagnetic coil module.

2. The wireless charging case structure of claim 1, wherein, The heat dissipation shell assembly includes a panel and a heat dissipation shell. The receiving groove is formed inside the heat dissipation shell. The panel is covered by the heat dissipation shell. The sealing shell assembly is connected to the end of the heat dissipation shell away from the panel.

3. The wireless charging case structure of claim 2, wherein, The inner wall of the heat dissipation housing is provided with a guide protrusion, and the electromagnetic coil module is provided with a guide groove, and the guide protrusion is adapted to be embedded in the guide groove. 4.The wireless charging case structure of claim 2, wherein, The inner wall of the heat dissipation housing is also provided with a fixing buckle, which is fastened to the electromagnetic coil module. The electromagnetic coil module is positioned corresponding to the heat dissipation hole. 5.The wireless charging case structure of claim 2, wherein, The number of heat dissipation holes and abutment blocks is multiple, with every two heat dissipation holes arranged correspondingly on both sides of the heat dissipation shell assembly. 6.The wireless charging case structure of claim 1, wherein, The sealing shell assembly includes a sealing shell and a base plate. The sealing shell has an installation groove and is connected to the heat dissipation shell assembly. The base plate is fastened to the end of the sealing shell away from the heat dissipation shell assembly. The sealing shell has a wiring connection hole.

7. The wireless charging case structure of claim 6, wherein, The inner wall of the sealed housing is provided with a limiting protrusion, and the control circuit module is provided with a limiting groove, and the limiting protrusion is adapted to be embedded in the limiting groove. 8.The wireless charging case structure of claim 6, wherein, The sealing housing has a connecting buckle protruding at one end adjacent to the heat dissipation housing assembly, and the inner wall of the heat dissipation housing assembly has a fastening groove, and the connecting buckle is installed in the fastening groove. 9.The wireless charging case structure of claim 6, wherein, The wireless charging housing structure also includes a connecting wire. The base plate has a wire-passing hole, through which the connecting wire passes and is electrically connected to the control circuit module.

10. A wireless charging device, comprising: The wireless charging housing structure includes any one of claims 1-9.

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