OBC power supply heat dissipation shell with intelligent temperature control louver
By adjusting the louvers of the OBC power supply heat dissipation shell through an intelligent temperature-controlled louver system, combined with a graphene thermal conductive film and an electric cleaning device, the problem of poor heat dissipation performance of traditional OBC power supply heat dissipation shells is solved, improving the system's stability and dustproof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG TITAN INTELLIGENT POWER CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional OBC power supply heat sinks have limited heat dissipation capabilities. Under high load operation, heat is difficult to dissipate quickly, which can easily accumulate, affecting performance and potentially causing dust buildup and short circuits.
It adopts an intelligent temperature-controlled louver system, which uses a temperature sensor to monitor the internal temperature, adjusts the opening and closing angle of the louvers through an electric push rod and gear mechanism, improves heat dissipation efficiency by combining graphene heat-conducting film, and maintains smooth ventilation by using an electric slide rail and a brush to clean the dustproof net.
It enables flexible adjustment of heat dissipation according to temperature requirements, improves the stability and reliability of the OBC power system, prevents dust from entering, and extends service life.
Smart Images

Figure CN224401917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chargers, and more particularly to an OBC power supply heat dissipation shell with intelligent temperature control louvers. Background Technology
[0002] OBC power supply heat dissipation housing refers to the housing used for on-board chargers. Its main function is to protect the internal electronic components and help dissipate the heat generated during OBC operation. Traditional OBC power supply heat dissipation housings often simply have simple ventilation holes, relying on natural heat dissipation to cool the power supply. When the power supply is operating under high load and generating a lot of heat, these fixed ventilation holes alone are not enough to dissipate heat quickly, and the heat tends to accumulate inside the housing, which in turn affects the performance and lifespan of the power supply. If the ventilation holes are left open for a long time, dust can easily enter the housing and accumulate on the power supply, which is not only detrimental to heat dissipation, but may even cause short circuits and other potential faults. Utility Model Content
[0003] To overcome the shortcomings of the limited heat dissipation effect in the existing technology, the technical problem to be solved is to provide an OBC power supply heat dissipation shell with intelligent temperature control louvers.
[0004] The technical solution of this utility model is: an OBC power supply heat dissipation shell with intelligent temperature-controlled louvers, including a heat dissipation shell, with ventilation openings on both the left and right sides of the heat dissipation shell, and electric push rods symmetrically fixedly connected to the lower part of the heat dissipation shell. Each electric push rod has a controller, and a connecting block is fixedly connected to the telescopic rod of the electric push rod. A rack is fixedly connected to the side end of the connecting block. Mounting brackets are fixedly connected to the outer sides of each ventilation opening, and louvers are rotatably connected to the mounting brackets. The louver blades are evenly distributed longitudinally, and the inner side of each blade is covered with a graphene thermally conductive film, which can quickly conduct heat. To improve heat dissipation efficiency, a gear is fixedly connected to the inner side of each blade. The gear meshes with a rack. When the rack moves horizontally under the drive of the electric push rod, it can drive the gear to rotate, thereby adjusting the opening and closing angle of the louver blades. The inner side of each vent is equipped with a guide rib. The guide rib is arc-shaped or inclined, which can guide the airflow evenly through the vent and enhance the air convection effect. A temperature sensor is installed inside the heat dissipation shell near the heating element. The temperature sensor is electrically connected to the electric push rod through the controller, which can monitor the internal temperature in real time and control the opening and closing of the louvers.
[0005] In one embodiment, a dustproof frame is also included. A dustproof frame is fixedly connected to the center of each ventilation opening. The dustproof frame is located outside the guide ribs. A dustproof net is installed on the dustproof frame. An electric slide rail is fixedly connected to the front of the dustproof frame. The electric slide rail is controlled by a controller and can drive a slidably connected brush to move along the surface of the dustproof net. The brush is slidably connected to the dustproof frame and can be activated according to a preset time or a dust sensing signal to clean the dust adhering to the surface of the dustproof net and ensure smooth ventilation.
[0006] In one embodiment, a heat sink is also included. The heat sink is installed at the bottom of the heat sink housing. The heat sink adopts a hollow grid structure, which has good air permeability, can increase the air circulation area at the bottom, and help improve the overall heat dissipation effect.
[0007] In one embodiment, a baffle is also included. The front side of the heat dissipation housing is fixedly connected to the baffle to prevent foreign objects from entering the interior of the heat dissipation housing from the front, and at the same time to help guide the airflow direction and optimize the heat dissipation path.
[0008] In one embodiment, a warning light is also included, which is mounted on the top left side of the heat dissipation housing.
[0009] In one embodiment, a buzzer is also included. The buzzer is installed on the top right side of the heat dissipation housing. Both the warning light and the buzzer are electrically connected to the controller. When the temperature sensor detects that the internal temperature exceeds the safety threshold, the controller will trigger the warning light to flash and the buzzer to sound an alarm, reminding the user to take timely action.
[0010] The beneficial effects of this utility model are: 1. By sending a signal to the controller through the temperature sensor, the controller starts the electric push rod. The telescopic rod of the electric push rod drives the connecting block to extend and retract. The connecting block drives the rack to move left and right. The rack drives the gear to rotate, thereby controlling the louvers to open or close. This allows the heat dissipation process to be flexibly adjusted according to the actual temperature requirements, achieving intelligent temperature control and heat dissipation balance.
[0011] 2. The electric slide rail is activated by the controller. The electric slide rail drives the moving parts to move the brush along the edge of the dustproof frame to clean the dust adhering to the surface of the dustproof mesh, preventing external dust from entering the heat dissipation shell and keeping the power supply and other internal electronic components clean, thereby improving the stability and reliability of the entire OBC power system. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a three-dimensional structural diagram of the electric push rod, rack, and guide ribs of this utility model.
[0014] Figure 3 This is a three-dimensional structural diagram of the temperature sensor, dustproof frame, and electric guide rail of this utility model.
[0015] Figure 4 This is a three-dimensional structural diagram of the mounting bracket, louvers, and gears of this utility model.
[0016] In the attached diagram, the following are the reference numerals: 1_heat sink housing, 2_electric push rod, 3_connecting block, 4_rack, 5_mounting bracket, 6_louver, 7_gear, 8_guide rib, 9_temperature sensor, 10_dustproof bracket, 1001_dustproof net, 11_electric slide rail, 12_brush, 13_heat sink bracket, 14_baffle, 15_warning light, 16_buzzer. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] Example: An OBC power supply heat dissipation housing with intelligent temperature-controlled louvers, such as... Figure 1-4As shown, the device includes a heat dissipation shell 1, an electric push rod 2, a connecting block 3, a rack 4, a mounting bracket 5, louvers 6, a gear 7, airflow guide ribs 8, and a temperature sensor 9. Ventilation openings are provided on both the left and right sides of the heat dissipation shell 1. The electric push rod 2 is symmetrically and fixedly connected to the lower part of the heat dissipation shell 1. A controller is provided on the electric push rod 2. The telescopic rod of the electric push rod 2 is fixedly connected to the connecting block 3. The rack 4 is fixedly connected to the side end of the connecting block 3. The mounting bracket 5 is fixedly connected to the outer side of each ventilation opening. The louvers 6 are rotatably connected to the mounting bracket 5. The blades of the louvers 6 are evenly distributed longitudinally, and the inner side of each blade is covered with a graphene thermally conductive film, which can quickly conduct heat. To improve heat dissipation efficiency, a gear 7 is fixedly connected to the inner side of each blade. The gear 7 meshes with the rack 4. When the rack 4 moves horizontally under the drive of the electric push rod 2, it can drive the gear 7 to rotate, thereby adjusting the opening and closing angle of the louver 6 blades. The inner side of the ventilation opening is equipped with the air guide ribs 8. The air guide ribs 8 are arc-shaped or inclined, which can guide the airflow evenly through the ventilation opening and enhance the air convection effect. The temperature sensor 9 is installed inside the heat dissipation shell 1 near the heating element. The temperature sensor 9 is electrically connected to the electric push rod 2 through the controller, which can monitor the internal temperature in real time and control the opening and closing of the louver 6. It also includes a dustproof frame 10, an electric guide rail, and a brush 12. The dustproof frame 10 is fixedly connected to the center of each ventilation opening. The dustproof frame 10 is located outside the guide rib 8. A dustproof net 1001 is installed on the dustproof frame 10. An electric slide rail 11 is fixedly connected to the front side of the dustproof frame 10. The electric slide rail 11 is controlled by a controller and can drive the slidably connected brush 12 to move along the surface of the dustproof net 1001. The brush 12 is slidably connected to the dustproof frame 10 and can be activated according to a preset time or a dust sensing signal to clean the dust attached to the surface of the dustproof net 1001 to ensure smooth ventilation.
[0019] When using this device, the on-board charger operates, and the temperature sensor 9 monitors the temperature inside the heat dissipation housing 1 near the heating element in real time. When the temperature is within the normal range, the louvers 6 remain closed, relying on the heat dissipation performance and sealing of the heat dissipation housing 1 to reduce the entry of external dust while slowly dissipating heat. When the on-board charger operates under high load, the temperature of the heating element rises, and the temperature sensor 9 detects that the temperature exceeds the normal range, sending an electrical signal to the controller to activate the electric push rod 2. The extension rod of the electric push rod 2 extends, causing the connecting block 3 to move forward, which in turn drives the rack 4 to move forward synchronously. The movement of the rack 4 drives the gear 7 meshing with it to rotate counterclockwise, causing all the louvers 6 to rotate and open synchronously. The ventilation area of the vents increases, and outside cold air flows towards the heating element under the guidance of the guide ribs 8, accelerating heat dissipation. When the louver 6 is open, the dustproof frame 10 blocks dust. The controller activates the electric slide rail 11 every 2 hours as preset, driving the moving parts to move the brush 12 up and down along the frame and mesh of the dustproof frame 10, cleaning the dustproof mesh 1001 and maintaining ventilation. When the temperature sensor 9 detects that the temperature has dropped to the normal range, the controller activates the electric push rod 2. The telescopic rod retracts, causing the connecting block 3 and the rack 4 to move back. The gear 7 rotates clockwise, and the louver 6 blades rotate in the opposite direction to close the ventilation opening, restoring the sealed state and balancing heat dissipation and dust prevention.
[0020] like Figure 1 As shown, the device also includes a heat sink 13, which is mounted on the bottom of the heat sink housing 1. The heat sink 13 has a perforated grid structure. It also includes a baffle 14, which is fixedly connected to the front side of the heat sink housing 1. Furthermore, it includes a warning light 15, which is mounted on the top left side of the heat sink housing 1. Finally, it includes a buzzer 16, which is mounted on the top right side of the heat sink housing 1. Both the warning light 15 and the buzzer 16 are electrically connected to the controller.
[0021] The heat dissipation housing 1 is placed on the heat dissipation bracket 13, with its bottom in full contact with the outside air, quickly dissipating conductive heat and improving overall heat dissipation efficiency. The baffle 14 on the front side of the heat dissipation housing 1 prevents foreign objects from impacting the internal electronic components and also prevents dust from entering from the front. When the temperature sensor 9 detects that the internal temperature of the heat dissipation housing 1 exceeds a set threshold, the controller activates the warning light 15 to flash, alerting the user to abnormal power overheating. The buzzer 16 on the top right side simultaneously emits an alarm sound, prompting the user to address the abnormality promptly.
[0022] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. An OBC power supply heat dissipation casing with intelligent temperature-controlled louvers, characterized in that: The device includes a heat dissipation shell (1), with ventilation openings on both the left and right sides. Electric push rods (2) are symmetrically fixedly connected to the lower part of the heat dissipation shell (1). A controller is mounted on the electric push rods (2). A connecting block (3) is fixedly connected to the telescopic rod of the electric push rods (2). A rack (4) is fixedly connected to the side end of the connecting block (3). Mounting brackets (5) are fixedly connected to the outer sides of the ventilation openings. Louvers (6) are rotatably connected to the mounting brackets (5). The blades of the louvers (6) are evenly distributed longitudinally, and a gear is fixedly connected to the inner side of each blade. 7) The gear (7) meshes with the rack (4). When the rack (4) moves horizontally under the drive of the electric push rod (2), it can drive the gear (7) to rotate, thereby adjusting the opening and closing angle of the louver (6) blades. The inner side of the ventilation opening is equipped with a guide rib (8). The guide rib (8) is arc-shaped or inclined, which can guide the airflow evenly through the ventilation opening. The heat dissipation shell (1) is equipped with a temperature sensor (9) near the heating element. The temperature sensor (9) is electrically connected to the electric push rod (2) through the controller, which can monitor the internal temperature in real time and control the opening and closing of the louver (6).
2. The OBC power supply heat dissipation housing with intelligent temperature control louvers as described in claim 1, characterized in that: It also includes a dustproof frame (10), and a dustproof frame (10) is fixedly connected to the middle of each of the ventilation openings. The dustproof frame (10) is located outside the guide rib (8). A dustproof net (1001) is installed on the dustproof frame (10). An electric slide rail (11) is fixedly connected to the front side of the dustproof frame (10). The electric slide rail (11) is controlled by a controller and can drive the slidably connected brush (12) to move along the surface of the dustproof net (1001). The brush (12) is slidably connected to the dustproof frame (10) and can be activated according to a preset time or a dust sensing signal to clean the dust attached to the surface of the dustproof net (1001).
3. The OBC power supply heat dissipation housing with intelligent temperature control louvers as described in claim 2, characterized in that: It also includes a heat sink (13), which is installed on the bottom of the heat sink housing (1).
4. The OBC power supply heat dissipation housing with intelligent temperature control louvers as described in claim 3, characterized in that: It also includes a baffle (14), which is fixedly connected to the front side of the heat dissipation shell (1).
5. The OBC power supply heat dissipation housing with intelligent temperature control louvers as described in claim 4, characterized in that: It also includes a warning light (15), which is installed on the top left side of the heat dissipation housing (1).
6. The OBC power supply heat dissipation housing with intelligent temperature control louvers as described in claim 5, characterized in that: It also includes a buzzer (16), which is installed on the top right side of the heat dissipation housing (1). Both the warning light (15) and the buzzer (16) are electrically connected to the controller.