A fast heat dissipation mounting bracket for on-board chargers of new energy vehicles

Abstract

This utility model relates to the field of on-board charger technology and discloses a fast heat dissipation mounting bracket for on-board chargers in new energy vehicles. The device uses a cooling fan to draw air through a dust filter into a ventilation channel. Part of the air moves along its original path guided by the air guide plate, while the other part exits through a serpentine tube and micropores, thus achieving more uniform and comprehensive heat dissipation. Finally, the heat is exhausted through the airflow from the outlet. Furthermore, adjustable feet, combined with hard, non-slip pads, allow for adjustment of the overall position to reduce vibration or enhance connection stability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted charger technology, and in particular to a fast heat dissipation mounting bracket for a new energy vehicle-mounted charger. Background Technology

[0002] An on-board charger is a charger that is fixedly installed on an electric vehicle. It has the ability to safely and automatically fully charge the electric vehicle's power battery. Common types include water-cooled on-board chargers, air-cooled on-board chargers, and naturally air-cooled on-board chargers.

[0003] Chinese Patent Publication No. CN209776378U discloses a wind-cooled vehicle charger with good heat dissipation, comprising a first through hole, an upper housing, and a lower housing. A first heat dissipation plate is evenly installed on the top of the upper housing, and first through holes are evenly arranged between the inner walls of both sides of the upper housing. A buzzer is installed at the center of one side of the upper housing below the first through holes. Second through holes are evenly arranged between the inner walls of both sides of the lower housing. Infrared sensors are installed at the top of both the power output port and the charging input port. An adjustment knob is located on one side of the lower housing near the power output port. By installing infrared sensors at the top of both the power output port and the charging input port, human presence can be detected, triggering an alarm via a buzzer, thus achieving an anti-theft function and making it easy to promote and use.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: existing on-board chargers have low heat dissipation efficiency, making it difficult to quickly dissipate the large amount of heat generated during operation, and dust can also enter the interior, thereby affecting the performance of components. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the heat dissipation effect of the on-board charger in the prior art is not good. To this end, we propose a fast heat dissipation mounting bracket for on-board chargers of new energy vehicles.

[0006] To achieve the above objectives, this application adopts the following technical solution: a fast heat dissipation mounting bracket for a new energy vehicle on-board charger, comprising: an upper housing and a lower housing fixedly mounted to the bottom of the upper housing by screws; a cooling fan is glued to one side of the upper housing; a box is provided on the outer surface of the cooling fan; the box is fixedly connected to the upper housing by screws; a dust filter is snapped into the inside of the box; ventilation channels are provided inside the upper and lower housings; a guide plate is inclinedly provided on the inner wall of the ventilation channels; a serpentine tube is provided on the inner wall of the upper housing; one end of the serpentine tube is connected to the air inlet side of the cooling fan; micro-perforated air outlets are evenly opened on the outer surface of the serpentine tube; the micro-perforated air outlets are aligned with the airflow direction of the ventilation channels; an air outlet is provided at the bottom of the lower housing; a breathable membrane is provided inside the air outlet; an extension plate is fixedly mounted to the outer surface of the upper housing by bolts; a silicone pad is provided between the extension plate and the upper housing; an adjustable foot is threadedly connected to the inside of the extension plate; and an anti-slip pad is provided at the bottom of the adjustable foot, thereby improving heat dissipation efficiency and effect.

[0007] Preferably, a printed circuit board is provided on one side of the lower housing, a wireless charging coil is provided on the other side of the lower housing, a shielding plate is provided on one side of the wireless charging coil, and the shielding plate is fixed to the lower housing by screws. The printed circuit board realizes the circuit control function of the charger, the wireless charging coil is used for wireless charging, and the shielding plate reduces electromagnetic interference during wireless charging, ensuring the normal operation of the charger and surrounding electronic equipment.

[0008] Preferably, the serpentine tube is a component made of aluminum alloy, which is lightweight.

[0009] Preferably, the air guide plates on the inner walls of both the upper and lower housings are inclined at an angle of - degrees to avoid obstructing airflow.

[0010] Preferably, the cooling fan is an adjustable speed fan, and a temperature sensor is integrated on the upper surface of the printed circuit board. The temperature sensor is electrically connected to the cooling fan. Heat dissipation is achieved quickly by increasing the power of the cooling fan.

[0011] Preferably, a thermistor is provided on one side of the shielding plate. The thermistor is electrically connected to the control unit of the printed circuit board through wires to detect the temperature of the shielding plate area.

[0012] The technical effects and advantages of this utility model are as follows: In this invention, the device operates a cooling fan, which filters air through a dust filter before it enters the ventilation channel. Part of the air moves along the original path guided by the air guide plate, while the other part exits through a serpentine tube and micropores, thereby achieving more uniform and comprehensive heat dissipation. Finally, the heat is discharged from the air outlet through the airflow. In addition, adjustable feet, in conjunction with hard anti-slip pads, can adjust the overall position to reduce shock or enhance connection stability. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram showing the overall structure of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the overall structure of this utility model broken down. Figure 2 .

[0014] Legend: 1. Upper shell; 2. Lower shell; 21. Air outlet; 3. Cooling fan; 4. Box body; 41. Dust filter; 5. Snake tube; 6. Extension plate; 61. Silicone pad; 62. Adjustable feet; 63. Anti-slip pad; 7. Printed circuit board; 8. Wireless charging coil; 9. Shielding plate; 91. Thermistor. Detailed Implementation

[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0016] Reference Figure 1As shown, this utility model provides a technical solution: a fast heat dissipation mounting bracket for a new energy vehicle on-board charger, comprising: an upper housing 1, and a lower housing 2 fixedly mounted to the bottom of the upper housing 1 by screws. A cooling fan 3 is glued to one side of the upper housing 1, and a box 4 is provided on the outer surface of the cooling fan 3. The box 4 is fixedly connected to the upper housing 1 by screws. A dust filter 41 is snapped into the inside of the box 4. A ventilation channel is provided inside the upper housing 1 and the lower housing 2. An air guide plate is inclinedly provided on the inner wall of the ventilation channel. A serpentine tube 5 is provided on the inner wall of the upper housing 1. One end of the serpentine tube 5 is connected to the air inlet side of the cooling fan 3. Micro-hole air outlets are evenly opened on the outer surface of the serpentine tube 5. The micro-hole air outlets are aligned with the airflow direction of the ventilation channel. The bottom of the lower housing 2... An air outlet 21 is provided, and a breathable membrane is installed inside the air outlet 21. An extension plate 6 is fixed to the outer surface of the upper housing 1 by bolts. A silicone pad 61 is provided between the extension plate 6 and the upper housing 1. An adjustable foot 62 is threaded inside the extension plate 6. An anti-slip pad 63 is provided at the bottom of the adjustable foot 62. When the cooling fan 3 operates, the air enters the ventilation channel after being filtered by the dust filter 41. Part of the air moves along the original path along the guide plate, and the other part is discharged through the serpentine tube 5 and micropores, thereby achieving more uniform and comprehensive heat dissipation. Finally, the heat is discharged from the air outlet 21 through the airflow. In addition, the adjustable foot 62, together with the hard anti-slip pad 63, can adjust the overall position to reduce vibration or enhance connection stability.

[0017] Reference Figures 1-4 As shown in this embodiment: a printed circuit board 7 is provided on one side of the lower housing 2, a wireless charging coil 8 is provided on the other side of the lower housing 2, a shielding plate 9 is provided on one side of the wireless charging coil 8, and the shielding plate 9 is fixed to the lower housing 2 by screws. The printed circuit board 7 realizes the circuit control function of the charger, the wireless charging coil 8 is used for wireless charging, and the shielding plate 9 reduces electromagnetic interference during wireless charging and ensures the normal operation of the charger and surrounding electronic equipment.

[0018] The serpentine tube 5 is a component made of aluminum alloy, which facilitates the removal of generated heat.

[0019] The air guide plates on the inner walls of the upper shell 1 and the lower shell 2 are both inclined at an angle of 3-10 degrees, and are set in the direction of the main airflow, so as to dissipate heat more efficiently.

[0020] The cooling fan 3 is an adjustable speed fan, which makes it easy to adjust the speed of the cooling fan 3. A temperature sensor is integrated on the upper surface of the printed circuit board 7. The temperature sensor is electrically connected to the cooling fan 3 to monitor the core heat source of the charger, thereby adjusting the speed more accurately.

[0021] A thermistor 91 is provided on one side of the shielding plate 9. The thermistor 91 is electrically connected to the control unit of the printed circuit board 7 through wires. When the thermistor 91 detects that the temperature of the shielding plate area is high, it increases the power of the cooling fan 3 through the control unit of the printed circuit board 7.

[0022] Working principle: The lower housing 2 is fixed to the bottom of the upper housing 1 with screws, and the box 4 is fixed to the upper housing 1 with screws. Since a printed circuit board 7 is provided on one side of the lower housing 2 and a wireless charging coil 8 is provided on the other side, a shielding plate 9 is fixed to one side of the wireless charging coil 8 with screws, and a thermistor 91 is installed on one side of the shielding plate 9. The thermistor 91 is electrically connected to the control unit of the printed circuit board 7 through wires. At the same time, a temperature sensor is integrated on the upper surface of the printed circuit board 7, and the temperature sensor is electrically connected to the cooling fan 3 glued to one side of the upper housing 1. Next, since the dust filter 41 is installed inside the housing 4, the cooling fan 3 is activated, allowing air to pass through the dust filter 41 and enter the ventilation channel inside the upper housing 1 and lower housing 2. The inner wall of this channel has a guide plate inclined at 3-10 degrees, so some of the air moves along the original path of the ventilation channel, and this airflow always follows the main airflow direction; the other part achieves uniform and comprehensive heat dissipation through the serpentine tube 5 and the microporous air outlet on the outer surface. Finally, the heat is discharged from the air outlet 21 at the bottom of the lower housing 2 with the airflow, and the breathable membrane inside prevents impurities from entering. Furthermore, the extension plate 6 is fixed to the outer surface of the upper housing 1 with bolts. A silicone pad 61 is placed between the extension plate 6 and the upper housing 1. An adjustable foot 62 with an anti-slip pad 63 is threaded inside the extension plate 6, adjusting the overall position of the fixing frame to achieve shock absorption and enhance the stability of the connection.

[0023] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A fast heat dissipation mounting bracket for an on-board charger of a new energy vehicle, characterized in that: The device includes an upper housing and a lower housing fixed to the bottom of the upper housing with screws. A cooling fan is glued to one side of the upper housing, and a housing is provided on the outer surface of the cooling fan. The housing is fixed to the upper housing with screws. A dust filter is snapped into the inside of the housing. Ventilation channels are provided inside the upper and lower housings. Air guide plates are inclinedly provided on the inner wall of the ventilation channels. A serpentine tube is provided on the inner wall of the upper housing. One end of the serpentine tube is connected to the air inlet side of the cooling fan. Micro-perforated air outlets are evenly opened on the outer surface of the serpentine tube. The air outlets are aligned with the airflow direction of the ventilation channels. An air outlet is provided at the bottom of the lower housing. A breathable membrane is provided inside the air outlet. An extension plate is fixed to the outer surface of the upper housing with bolts. A silicone pad is provided between the extension plate and the upper housing. An adjustable foot is threaded into the extension plate. An anti-slip pad is provided at the bottom of the adjustable foot.

2. The quick heat dissipation fixing rack for the on-board charger of the new energy vehicle according to claim 1, characterized in that: A printed circuit board is provided on one side of the lower housing, and a wireless charging coil is provided on the other side of the lower housing. A shielding plate is provided on one side of the wireless charging coil, and the shielding plate is fixed to the lower housing by screws.

3. The quick heat dissipation fixing rack for the on-board charger of the new energy vehicle according to claim 1, characterized in that: The serpentine tube is a component made of aluminum alloy.

4. The quick heat dissipation fixing rack for the on-board charger of a new energy vehicle according to claim 1, characterized in that: The air guide plates on the inner walls of the upper and lower shells are both inclined, with an inclination angle of 3-10 degrees.

5. The quick heat dissipation fixing rack for the on-board charger of the new energy vehicle according to claim 2, characterized in that: The cooling fan is an adjustable speed fan, and a temperature sensor is integrated on the upper surface of the printed circuit board. The temperature sensor is electrically connected to the cooling fan.

6. The quick heat dissipation fixing rack for the on-board charger of a new energy vehicle according to claim 2, characterized in that: A thermistor is provided on one side of the shielding plate, and the thermistor is electrically connected to the control unit of the printed circuit board through a wire.

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