Heat dissipation structure of vehicle-mounted wireless charger

Abstract

The utility model relates to the technical field of wireless charging, in particular to a heat dissipation structure of a vehicle-mounted wireless charger, which comprises a wireless charger shell, a wireless charging assembly, a circuit board, an air outlet, an air inlet, a lower flow guide seat, a fan, an upper flow guide seat and a lower heat conduction plate. A connecting channel is formed between the upper surface of the upper heat conduction plate and the inner side of the top of the wireless charger shell, the other end of the upper flow guide base extends downwards to form an upper flow guide channel, a lower flow guide channel is formed in one end of the lower flow guide base, and the bottom end of the lower flow guide channel is arranged right opposite to an air outlet of the fan. The top end of the lower flow guide channel is communicated with the upper flow guide channel; according to the utility model, the wireless charging assembly and the circuit board can be effectively assisted, the temperature between the wireless charging assembly and the circuit board is reduced, the charging efficiency of the wireless charging assembly and the service life of charging equipment are ensured, and the use is safer and more reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless charging technical field, concretely is a kind of heat dissipation structure of vehicle wireless charger. BACKGROUND

[0002] With the popularity of smart phones, the frequency of various applications of smart phones used in the vehicle gradually rises, and wireless charger is one of the most common supporting applications. The Chinese patent with the authorization announcement number CN216056438U discloses a rotatable vehicle wireless charger, which comprises a shell, a wireless charging assembly arranged in the shell, a retractable clamping arm mechanism extending from the opposite sides of the shell, and a support mechanism, a connecting piece, one end of the connecting piece is rotatably connected with the shell, and the other end is fixedly connected with the support mechanism from the back of the shell; a drive motor is arranged in the shell, the drive shaft of the drive motor is connected with the shaft center of one end of the connecting piece, and the shell of the drive motor is fixed with the shell to drive the shell to rotate relative to the connecting piece. The disclosed vehicle wireless charger shell can be rotated to adjust the direction, so that the mobile phone can be placed vertically or horizontally, and only needs to be pressed to rotate the adjusting key, which is convenient for users to operate, improves user experience and safety during driving. Moreover, double coils are arranged, which can match more types of charging devices, thereby improving the charging efficiency.

[0003] However, the above-mentioned vehicle wireless charger still has the following disadvantages in actual application: during charging, the wireless charging assembly and the circuit board will generate a large amount of heat, the temperature between the wireless charging assembly and the circuit board will rise sharply, which not only affects the charging efficiency of the wireless charging assembly, but also affects the service life of the charging device, and the use process is not safe and reliable. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned shortage, provides a kind of heat dissipation structure of vehicle wireless charger, can effectively assist wireless charging assembly and circuit board, reduce the temperature between wireless charging assembly and circuit board, guarantee the charging efficiency of wireless charging assembly and the service life of charging device, use more safely and reliably.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The application discloses a heat dissipation structure of a vehicle-mounted wireless charger, which comprises a wireless charger shell, a wireless charging assembly and a circuit board which are arranged in parallel in the wireless charger shell, a ventilation opening is arranged on one side of the wireless charger shell, and an air inlet is arranged at the bottom of the wireless charger shell.

[0007] Further, a middle heat conduction blade is arranged between the wireless charging assembly and the circuit board, the upper end of the middle heat conduction blade is connected with the wireless charging assembly, the lower end of the middle heat conduction blade is connected with the circuit board, one side of the upper flow guide channel is provided with a connecting opening, and the connecting opening is arranged opposite to the end of the middle heat conduction blade.

[0008] Further, a plurality of upper connecting pieces which are folded upwards are arranged on the middle heat conduction blade, and the upper end of the upper connecting piece penetrates through the wireless charging assembly and abuts against the upper heat conduction plate.

[0009] Further, a plurality of lower connecting pieces which are folded downwards are arranged on the middle heat conduction blade, and the lower end of the lower connecting piece penetrates through the circuit board and extends below the circuit board.

[0010] Further, a gap is left between the air outlet of the fan and the bottom end of the lower flow guide channel.

[0011] Further, a plurality of flow guide vanes are arranged in the lower flow guide channel.

[0012] The application has the beneficial effects that:

[0013] In actual application, when in use, the heat of the lower side of the circuit board is led out through the lower heat-conducting plate, the heat generated on the upper side of the wireless charging assembly is led out through the upper heat-conducting plate, the fan draws in cold air from the air inlet, part of the cold air passes through below the circuit board, cools and radiates heat for the lower heat-conducting plate and the circuit board, and is discharged from the air outlet, and the other part of the cold air enters the lower flow channel, cools and radiates heat for the upper heat-conducting plate and the wireless charging assembly along the upper flow channel and the connecting channel, and is discharged from the air outlet; the utility model can effectively assist the wireless charging assembly and the circuit board, reduce the temperature between the wireless charging assembly and the circuit board, ensure the charging efficiency of the wireless charging assembly and the service life of the charging equipment, and be safer and more reliable in use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure schematic diagram of the utility model in use;

[0015] Figure 2 is the structure schematic diagram of the first visual angle of the utility model;

[0016] Figure 3 is the structure schematic diagram of the second visual angle of the utility model;

[0017] Figure 4 is the bottom view of the utility model;

[0018] Figure 5 is Figure 4 the sectional view of A-A in the middle;

[0019] Fig. 1 is the utility model's wireless charger shell 1; air outlet 11; air inlet 12; wireless charging assembly 2; circuit board 3; lower flow seat 4; lower flow channel 41; flow vane 411; fan 5; upper flow seat 6; upper heat-conducting plate 61; connecting channel 62; upper flow channel 63; connecting port 631; lower heat-conducting plate 7; middle heat-conducting vane 8; upper connecting piece 81; lower connecting piece 82. DETAILED DESCRIPTION

[0020] As Figures 1-5As shown, a heat dissipation structure for a vehicle-mounted wireless charger includes a wireless charger housing 1, a wireless charging component 2 and a circuit board 3 arranged parallel to each other inside the wireless charger housing 1, an exhaust vent 11 on one side of the wireless charger housing 1, and an air inlet 12 at the bottom of the wireless charger housing 1. The structure is characterized by: a lower guide seat 4 fixed below the circuit board 3, a fan 5 mounted on the lower guide seat 4, an upper guide seat 6 fixed above the wireless charging component 2, and a lower heat-conducting plate 7 fixed below the circuit board 3. The air inlet end of the fan 5 faces the air inlet 12. The upper flow guide seat 6 has an upper heat-conducting plate 61 at one end, and the lower surface of the upper heat-conducting plate 61 is attached to the wireless charging component 2. A connecting channel 62 is formed between the upper surface of the upper heat-conducting plate 61 and the top inner side of the wireless charger housing 1. The other end of the upper flow guide seat 6 extends downward to form an upper flow guide channel 63. The connecting channel 62 connects the exhaust port 11 and the upper flow guide channel 63. The lower flow guide seat 4 has a lower flow guide channel 41 at one end. The bottom end of the lower flow guide channel 41 is positioned opposite the air outlet of the fan 5, and the top end of the lower flow guide channel 41 is connected to the upper flow guide channel 63.

[0021] In use, the lower heat-conducting plate 7 conducts heat away from the lower side of the circuit board 3, and the upper heat-conducting plate 61 conducts heat away from the upper side of the wireless charging component 2. The fan 5 draws in cold air from the air inlet 12. Part of the cold air passes under the circuit board 3, cooling the lower heat-conducting plate 7 and the circuit board 3 before being discharged from the exhaust port 11. The other part of the cold air enters the lower guide channel 41, and along the upper guide channel 63 and the connecting channel 62, cools the upper heat-conducting plate 61 and the wireless charging component 2 before being discharged from the exhaust port 11. This utility model can effectively assist the wireless charging component 2 and the circuit board 3, reduce the temperature between them, ensure the charging efficiency of the wireless charging component 2 and the service life of the charging equipment, and make it safer and more reliable to use.

[0022] like Figures 1-5 As shown, a central heat-conducting blade 8 is provided between the wireless charging component 2 and the circuit board 3. The upper end of the central heat-conducting blade 8 is connected to the wireless charging component 2, and the lower end is connected to the circuit board 3. A connection port 631 is provided on one side of the upper flow channel 63, and the connection port 631 is positioned directly opposite the end of the central heat-conducting blade 8. In this embodiment, the heat from the lower side of the wireless charging component 2 and the upper side of the circuit board 3 is discharged through the central heat-conducting blade 8. Some of the cold air flowing in the upper flow channel 63 can pass between the wireless charging component 2 and the circuit board 3, dissipating heat from the lower side of the wireless charging component 2, the central heat-conducting blade 8, and the upper side of the circuit board 3, resulting in better heat dissipation.

[0023] like Figures 1-5As shown, the middle heat-conducting blade 8 is provided with a plurality of upwardly folded upper connecting pieces 81, upper ends of the upper connecting pieces 81 penetrating the wireless charging assembly 2 and abutting against the upper heat-conducting plate 61; in the embodiment, the plurality of upper connecting pieces 81 penetrating the wireless charging assembly 2 and abutting against the upper heat-conducting plate 61 can conduct heat inside the wireless charging assembly 2, ensure the charging efficiency of the wireless charging assembly 2 and prolong the service life of the wireless charging assembly 2.

[0024] As shown in the drawings, Figures 1-5 As shown, the middle heat-conducting blade 8 is provided with a plurality of downwardly folded lower connecting pieces 82, lower ends of the lower connecting pieces 82 penetrating the circuit board 3 and extending below the circuit board 3; in the embodiment, the plurality of lower connecting pieces 82 penetrating the circuit board 3 and extending below the circuit board 3 can conduct heat inside the circuit board 3, prolong the service life of the circuit board 3.

[0025] As shown in the drawings, Figures 1-5 As shown, a gap is left between the air outlet of the fan 5 and the bottom end of the lower flow guide channel 41; in the embodiment, the gap can make part of the cold air flow out of the air outlet of the fan 5, and dissipate heat for the lower side of the circuit board 3 and the lower heat-conducting plate 7.

[0026] As shown in the drawings, Figures 1-5 As shown, the lower flow guide channel 41 is provided with a plurality of flow guide vanes 411; in the embodiment, the plurality of flow guide vanes 411 can make the cold air entering the lower flow guide channel 41 more uniform, and the heat dissipation effect is better.

[0027] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the scope defined by the present application.

Claims

1. A heat dissipation structure for a vehicle-mounted wireless charger, comprising a wireless charger housing (1), a wireless charging component (2) and a circuit board (3) arranged parallel to each other within the wireless charger housing (1), an exhaust vent (11) provided on one side of the wireless charger housing (1), and an air inlet (12) provided at the bottom of the wireless charger housing (1), characterized in that: The lower guide seat (4) is fixed below the circuit board (3), the fan (5) is installed on the lower guide seat (4), the upper guide seat (6) is fixed above the wireless charging component (2), and the lower heat conduction plate (7) is fixed below the circuit board (3). The air inlet end of the fan (5) is set directly opposite the air inlet (12). One end of the upper flow guide seat (6) is an upper heat conduction plate (61). The lower surface of the upper heat conduction plate (61) is attached to the wireless charging component (2). A connecting channel (62) is formed between the upper surface of the upper heat conduction plate (61) and the top inner side of the wireless charger housing (1). The other end of the upper flow guide seat (6) extends downward to form an upper flow guide channel (63). The connecting channel (62) connects the exhaust port (11) and the upper flow guide channel (63). One end of the lower flow guide seat (4) is provided with a lower flow guide channel (41). The bottom end of the lower flow guide channel (41) is set directly opposite the air outlet of the fan (5). The top end of the lower flow guide channel (41) is connected to the upper flow guide channel (63).

2. The heat dissipation structure of a vehicle-mounted wireless charger according to claim 1, characterized in that, A middle heat-conducting blade (8) is provided between the wireless charging component (2) and the circuit board (3). The upper end of the middle heat-conducting blade (8) is connected to the wireless charging component (2), and the lower end is connected to the circuit board (3). A connection port (631) is provided on one side of the upper flow channel (63), and the connection port (631) is located directly opposite the end of the middle heat-conducting blade (8).

3. The heat dissipation structure of a vehicle-mounted wireless charger according to claim 2, characterized in that, The middle heat-conducting blade (8) is provided with multiple upward-folding upper connecting pieces (81), the upper end of the upper connecting piece (81) passes through the wireless charging component (2) and abuts against the upper heat-conducting plate (61).

4. The heat dissipation structure of a vehicle-mounted wireless charger according to claim 2, characterized in that, The middle heat-conducting blade (8) is provided with a number of downwardly folded lower connecting pieces (82), the lower end of the lower connecting piece (82) passes through the circuit board (3) and extends to the bottom of the circuit board (3).

5. The heat dissipation structure of a vehicle-mounted wireless charger according to claim 1, characterized in that, A gap is left between the air outlet of the fan (5) and the bottom of the lower guide channel (41).

6. The heat dissipation structure of a vehicle-mounted wireless charger according to claim 1, characterized in that, Multiple guide vanes (411) are provided inside the lower guide channel (41).

Images