Ash and heat insulation automobile DC-DC converter structure

Abstract

The utility model discloses a dust and heat insulation automobile DC-DC converter structure comprising a converter body, the outer surface of the converter body is fixedly provided with a converter box cover, and one end of the converter body far away from the converter box cover is provided with an air duct structure. And the temperature of the converter body absorbed by the heat dissipation partition plate box is reduced through the air duct structure, so that the converter body can operate more stably. According to the dust-insulation and heat-insulation automobile DC-DC converter structure, when the converter body operates, electronic components in the converter body can generate temperature, the temperature can be conducted into the heat dissipation partition plate box by the heat conduction silica gel paste, and the rotation of the heat dissipation fan can blow external wind to the heat dissipation fins, so that the wind takes away heat through gaps among the heat dissipation fins, and the heat dissipation efficiency of the converter body is improved. Through cooperative installation of the converter body, the converter box cover and the sealing rubber pad, electronic components in the converter body are isolated from dust and moisture, heat dissipation can be achieved at the same time, and the service life of the converter body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of DC-DC converters, in particular to a dust-insulated and heat-insulated automobile DC-DC converter structure. Background Art

[0002] The DC voltage converter in electric vehicles and fuel vehicles is also called a voltage converter. It can convert the original higher DC voltage of the electric vehicle's on-board battery into a lower DC voltage for the convenience of on-board accessories such as headlights, wipers, fans, radios, airbags, electric windows, and various instruments and equipment in the car. The DC-DC converter increases and decreases the input voltage for easy use. However, since the converter is generally installed inside the car body, the environment inside the car body is harsh, including dust, moisture, high temperature and low temperature, which can easily cause damage to the DC-DC converter. For this reason, a fully sealed dustproof converter is required. Utility Model Content

[0003] The utility model aims to provide a dust-insulated and heat-insulated automobile DC-DC converter structure to solve the problems in the above-mentioned background technology that the internal environment of the vehicle shell is bad and the converter is easily damaged.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof and heat-insulating automotive DC-DC converter structure, comprising a converter body, a converter box cover is fixedly installed on the outer surface of the converter body, and a sealing rubber pad is arranged between the converter box cover and the converter body, a thermally conductive silicone paste is adhered to the outer surface of the converter body at one end away from the converter box cover, and a heat dissipation baffle box is arranged at the end of the thermally conductive silicone paste away from the converter body, the heat dissipation baffle box and the converter body are fixed by screws, and the outer surface of the heat dissipation baffle box is tightly adhered to the outer surface of the thermally conductive silicone paste, side water retaining eaves are fixedly installed on the outer surfaces of both sides of the heat dissipation baffle box, and an air duct structure is arranged at the end of the converter body away from the converter box cover, and the temperature of the converter body absorbed by the heat dissipation baffle box is reduced by the air duct structure, so that the converter body can operate more stably.

[0005] Preferably, the air duct structure includes: cooling fins, which are fixedly mounted on the outer surface of an end of a cooling baffle box away from the converter body, and the outer surface of the cooling baffle box is threadedly mounted with studs, a cooling fan is installed through the outer surface of the studs, and the outer surface of the cooling fan is in contact with the outer surface of the studs.

[0006] By adopting the above technical solution, the heat generated during operation is absorbed by the heat dissipation baffle box installed on the outside of the converter body, and the heat dissipation fins are cooled by the wind blown by the cooling fan, thereby reducing the temperature of the converter body, allowing the converter body to operate at a stable temperature and preventing external dust from entering the interior of the converter body when the converter body is dissipating heat. At the same time, the cooling fan can be easily removed from the studs during regular maintenance and cleaning.

[0007] Preferably, a protective cover is fixedly mounted on the outer surface of the heat dissipation fan, and the protective cover and the heat dissipation fan are concentrically designed, and the air inlet of the heat dissipation fan is completely blocked by the protective cover.

[0008] By adopting the above technical solution, the protective cover can reduce the risk of external debris entering the interior of the cooling fan, thereby preventing the cooling fan from getting stuck or being damaged, thereby increasing the service life of the cooling fan.

[0009] Preferably, a channel is opened inside the heat dissipation baffle box, and input and output plugs are fixedly installed at both ends of the channel in the heat dissipation baffle box, and the input and output plugs are connected to the water tank radiator of the car.

[0010] By adopting the above technical solution, the water tank can be connected to the input and output plugs, so that the water in the heat dissipation water tank can flow through the inside of the heat dissipation baffle box, and cooperate with the thermal conductive silicone paste to reduce the temperature of the converter body.

[0011] Preferably, the channel in the heat dissipation baffle box is disconnected at one section, and insertion tubes are fixedly installed at both ends of the disconnected channel in the heat dissipation baffle box, and the insertion tube passes through the outer surface of the heat dissipation baffle box, a pump seat is inserted on the outer surface of the heat dissipation baffle box, and a sealing gasket is fixedly installed on the outer surface of the pump seat, and the outer surface of the sealing gasket is tightly fitted with the outer surface of the insertion tube, the outer surface of the pump seat is penetrated by a stud, and the outer surface of the stud is fitted with the outer surface of the pump seat, and the outer surface of the pump seat is fitted with the outer surface of the cooling fan.

[0012] By adopting the above technical solution, when the parts in the pump seat are worn out, the pump seat can be removed from the studs for maintenance and replacement. At the same time, the insertion tube can be accurately inserted into the interior of the pump seat through the studs, and the sealing gasket can prevent water leakage when the insertion tube is connected to the pump seat. After removing the cooling fan, the pump seat can be removed for maintenance and replacement.

[0013] Preferably, a transmission mechanism is provided between the cooling fan and the pump seat, and the transmission mechanism drives the water in the cooling water tank to pass through the channel in the cooling baffle box, thereby reducing the temperature absorbed by the cooling baffle box, so that the converter body can be cooled down for stable operation.

[0014] By adopting the above technical solution, when the cooling fan is started, the guide block can be driven to rotate together, so that the piston draws water in the cooling water tank into the cooling baffle box for cooling, so that the cooling baffle box can be cooled by water and wind at the same time.

[0015] Preferably, the transmission mechanism includes: a guide block, which is fixedly mounted on the outer surface of the rotating shaft of the cooling fan, and the cooling fan and the guide block are concentrically designed, and a groove is provided on the outer surface of the guide block, a piston is slidably mounted inside the pump seat, and one end of the piston penetrates the outer surface of the pump seat, and the pump seat is engaged with the piston, and one end of the piston located outside the pump seat is engaged with the groove of the guide block, a passage is provided inside the pump seat, and one-way valves are fixedly mounted at both ends of the passage in the pump seat.

[0016] By adopting the above technical solution, when the cooling fan rotates, the guide block will be driven to rotate. When the groove on the outer surface of the guide block rotates to the highest point, the piston will be pushed to slide upward in the pump seat. When the groove on the outer surface of the guide block rotates to the lowest point, the piston will be pushed to slide downward in the pump seat. In conjunction with the one-way valve, the water in the cooling water tank can be pumped into the pump seat and discharged, so that the cooling baffle box can suck in and discharge the water in the cooling water tank.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the dust-insulated and heat-insulated automobile DC-DC converter structure:

[0018] 1. When the converter body is running, the electronic components inside it will generate temperature, which will be conducted to the inside of the heat dissipation baffle box by the thermal conductive silicone sticker. The rotation of the cooling fan will blow the external wind to the heat dissipation fins, so that the wind will take away the heat through the gaps between the heat dissipation fins. Through the coordinated installation of the converter body, the converter box cover and the sealing pad, the electronic components in the converter body can be isolated from dust and moisture while dissipating heat, thereby extending the service life of the converter body.

[0019] 2. When the cooling fan rotates, the guide block will also rotate. When the groove on the outer surface of the guide block rotates to the highest point, it will push the piston to slide upward inside the pump seat. When the groove on the outer surface of the guide block rotates to the lowest point, it will push the piston to slide downward inside the pump seat. At the same time, with the one-way valve, the water in the cooling water tank can be pumped into the pump seat through the input and output plugs and pumped out again, so that the temperature absorbed by the cooling baffle box can be taken away, so that the temperature of the converter body can be reduced and the operation can be more stable.

[0020] 3. During regular maintenance, the screws on the outer surface of the stud can be removed, and the cooling fan can be removed from the stud. After that, the pump seat is separated from the extrusion of the cooling fan and the pump seat can also be removed from the stud. At the same time, when the pump seat is reinstalled, the stud can accurately position the insertion catheter so that the insertion catheter can be accurately inserted into the interior of the pump seat. At the same time, the sealing gasket can prevent leakage between the insertion catheter and the pump seat, which is convenient for maintenance and replacement of the cooling fan and the pump seat without causing water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of the converter body and the heat dissipation baffle box of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the heat dissipation baffle box and the pump seat of the utility model;

[0023] Figure 3 This is a schematic diagram of the side view structure of the converter body and the heat dissipation fins of the utility model;

[0024] Figure 4 This is a schematic diagram of the cutaway three-dimensional structure of the heat dissipation baffle box and the insertion conduit of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the heat dissipation fan and the guide block of the utility model;

[0026] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the pump seat and the sealing gasket of the utility model.

[0027] In the figure: 1. Converter body; 2. Converter box cover; 3. Thermal conductive silicone sticker; 4. Heat dissipation baffle box; 5. Heat dissipation fins; 6. Input and output plugs; 7. Insert catheter; 8. Pump seat; 9. Sealing gasket; 10. Cooling fan; 11. Protective cover; 12. Guide block; 13. Piston; 14. One-way valve; 15. Stud; 16. Side water retaining eaves. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6The utility model provides a technical solution: a dust-insulating and heat-insulating automotive DC-DC converter structure, comprising a converter body 1, a converter box cover 2 is fixedly installed on the outer surface of the converter body 1, and a sealing rubber pad is arranged between the converter box cover 2 and the converter body 1, a thermal conductive silicone paste 3 is attached to the outer surface of the converter body 1 at one end away from the converter box cover 2, and a heat dissipation baffle box 4 is arranged at the end of the thermal conductive silicone paste 3 away from the converter body 1, the heat dissipation baffle box 4 and the converter body 1 are fixed by screws, and the outer surface of the heat dissipation baffle box 4 is tightly attached to the outer surface of the thermal conductive silicone paste 3, side water retaining eaves 16 are fixedly installed on the outer surfaces of both sides of the heat dissipation baffle box 4, and an air duct structure is arranged at the end of the converter body 1 away from the converter box cover 2, and the temperature of the converter body 1 absorbed by the heat dissipation baffle box 4 is reduced by the air duct structure, so that the converter body 1 can operate more stably.

[0030] By cooperating and installing the converter body 1 with the converter box cover 2 and the sealing pad, the electronic components in the converter body 1 are isolated from dust and water, preventing water and dust from entering the converter body 1 due to the harsh environment in the car and causing damage to the circuit board. At the same time, a large amount of heat emitted by the converter body 1 can be conducted to the heat dissipation baffle box 4 through the thermal conductive silicone sticker 3, and the contact between water flowing down from the converter body 1 and the cooling fan 10 is reduced through the side water retaining eaves 16, thereby reducing the failure rate of the cooling fan 10.

[0031] The air duct structure includes: heat dissipation fins 5, which are fixedly mounted on the outer surface of an end of a heat dissipation baffle box 4 away from the converter body 1, and the outer surface of the heat dissipation baffle box 4 is threadedly mounted with studs 15, the outer surface of the studs 15 is penetrated by a heat dissipation fan 10, and the outer surface of the heat dissipation fan 10 is in contact with the outer surface of the studs 15.

[0032] Through the rotation of the cooling fan 10, the heat absorbed by the cooling fins 5 is quickly dissipated through the wind blown out by the cooling fan 10, thereby reducing the temperature of the converter body 1. When maintenance is required, the cooling fan 10 can be easily removed from the stud 15 for cleaning or replacement, so that the electronic components in the converter body 1 can operate stably at a suitable temperature, and the cooling fan 10 is convenient to maintain.

[0033] A protective cover 11 is fixedly mounted on the outer surface of the heat dissipation fan 10 , and the protective cover 11 and the heat dissipation fan 10 are concentrically designed, and the air inlet of the heat dissipation fan 10 is completely blocked by the protective cover 11 .

[0034] The protective cover 11 reduces the risk of external debris entering the interior of the cooling fan 10 , reduces the failure rate of the cooling fan 10 , and increases the service life of the cooling fan 10 .

[0035] A channel is provided inside the heat dissipation baffle box 4, and input and output plugs 6 are fixedly installed at both ends of the channel inside the heat dissipation baffle box 4, and the input and output plugs 6 are connected to the water tank radiator of the automobile.

[0036] Through the passages and the input and output plugs 6 provided in the heat dissipation baffle box 4, water can pass through the heat dissipation baffle box 4 to take away the excess heat to the radiator of the automobile for heat dissipation.

[0037] The channel in the heat dissipation baffle box 4 is disconnected at one section, and insertion tubes 7 are fixedly installed at both ends of the disconnected channel in the heat dissipation baffle box 4, and the insertion tube 7 passes through the outer surface of the heat dissipation baffle box 4, a pump seat 8 is inserted on the outer surface of the heat dissipation baffle box 4, and a sealing gasket 9 is fixedly installed on the outer surface of the pump seat 8, and the outer surface of the sealing gasket 9 is tightly fitted with the outer surface of the insertion tube 7, the outer surface of the pump seat 8 is penetrated by the stud 15, and the outer surface of the stud 15 is fitted with the outer surface of the pump seat 8, and the outer surface of the pump seat 8 is fitted with the outer surface of the cooling fan 10.

[0038] The stud 15 can accurately allow the insertion conduit 7 of the pipeline in the heat dissipation baffle box 4 to be inserted into the interior of the pump seat 8, and the sealing gasket 9 can prevent the inserted insertion conduit 7 from leaking, so that the pump seat 8 and the heat dissipation baffle box 4 can be separated and disassembled, and when the parts in the pump seat 8 are damaged, they can be removed from the heat dissipation baffle box 4 for replacement and repair.

[0039] A transmission mechanism is provided between the cooling fan 10 and the pump seat 8, through which the water in the cooling water tank is driven to pass through the channel in the cooling baffle box 4, thereby reducing the temperature absorbed by the cooling baffle box 4, so that the converter body 1 can cool down and operate stably. The transmission mechanism includes: a guide block 12, which is fixedly installed on the outer surface of the rotating shaft of the cooling fan 10, and the cooling fan 10 and the guide block 12 are concentrically designed, and a groove is provided on the outer surface of the guide block 12. A piston 13 is slidably installed inside the pump seat 8, and one end of the piston 13 passes through the outer surface of the pump seat 8, and the pump seat 8 is engaged with the piston 13, and the end of the piston 13 located outside the pump seat 8 is in contact with the groove of the guide block 12, a passage is provided inside the pump seat 8, and one-way valves 14 are fixedly installed at both ends of the passage in the pump seat 8.

[0040] When the cooling fan 10 rotates, it can drive the guide block 12 to rotate. The rotation of the guide block 12 makes the piston 13 that fits the guide block 12 slide up and down. When the groove on the outer surface of the guide block 12 rotates to the highest point, the piston 13 will move up and cooperate with the one-way valve 14 to push out the sucked water. When the groove on the outer surface of the guide block 12 rotates to the lowest point, the piston 13 will move down and cooperate with the one-way valve 14 to suck the water in the water tank into the pump seat 8 through the input and output plugs 6.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-insulating and heat-insulating automotive DC-DC converter structure, comprising a converter body (1), a converter box cover (2) is fixedly mounted on the outer surface of the converter body (1), and a sealing rubber pad is arranged between the converter box cover (2) and the converter body (1), a heat-conducting silicone paste (3) is attached to the outer surface of one end of the converter body (1) away from the converter box cover (2), and a heat-dissipating baffle box (4) is arranged on the end of the heat-conducting silicone paste (3) away from the converter body (1), the heat-dissipating baffle box (4) and the converter body (1) are fixed by screws, and the outer surface of the heat-dissipating baffle box (4) is tightly attached to the outer surface of the heat-conducting silicone paste (3), and side water retaining eaves (16) are fixedly mounted on the outer surfaces of both sides of the heat-dissipating baffle box (4), characterized in that: An air duct structure is provided at one end of the converter body (1) away from the converter box cover (2), and the temperature of the converter body (1) absorbed by the heat dissipation baffle box (4) is reduced by the air duct structure, so that the converter body (1) can operate more stably.

2. The dust-insulated and heat-insulated automotive DC-DC converter structure according to claim 1, characterized in that: The air duct structure comprises: a heat dissipation fin (5), wherein the heat dissipation fin (5) is fixedly mounted on the outer surface of an end of a heat dissipation baffle box (4) away from the converter body (1), and a stud (15) is threadedly mounted on the outer surface of the heat dissipation baffle box (4), a heat dissipation fan (10) is installed through the outer surface of the stud (15), and the outer surface of the heat dissipation fan (10) is in contact with the outer surface of the stud (15).

3. The dust-insulating and heat-insulating automotive DC-DC converter structure according to claim 2, characterized in that: A protective cover (11) is fixedly mounted on the outer surface of the heat dissipation fan (10), and the protective cover (11) and the heat dissipation fan (10) are designed to be concentric, and the air inlet of the heat dissipation fan (10) is completely blocked by the protective cover (11).

4. The dust-insulated and heat-insulated automotive DC-DC converter structure according to claim 1, characterized in that: A channel is provided inside the heat dissipation baffle box (4), and input and output plugs (6) are fixedly installed at both ends of the channel inside the heat dissipation baffle box (4), and the input and output plugs (6) are connected to the water tank radiator of the automobile.

5. The dust-insulated and heat-insulated automotive DC-DC converter structure according to claim 1, characterized in that: The channel in the heat dissipation baffle box (4) is disconnected at one section, and insertion tubes (7) are fixedly installed at both ends of the disconnected channel in the heat dissipation baffle box (4), and the insertion tube (7) passes through the outer surface of the heat dissipation baffle box (4). A pump seat (8) is inserted into the outer surface of the heat dissipation baffle box (4), and a sealing gasket (9) is fixedly installed on the outer surface of the pump seat (8), and the outer surface of the sealing gasket (9) is tightly fitted with the outer surface of the insertion tube (7). The outer surface of the pump seat (8) is penetrated by a stud (15), and the outer surface of the stud (15) is fitted with the outer surface of the pump seat (8), and the outer surface of the pump seat (8) is fitted with the outer surface of the heat dissipation fan (10).

6. The dust-insulated and heat-insulated automotive DC-DC converter structure according to claim 2, characterized in that: A transmission mechanism is provided between the heat dissipation fan (10) and the pump seat (8), and the transmission mechanism drives the water in the heat dissipation water tank to pass through the channel in the heat dissipation baffle box (4), thereby reducing the temperature absorbed by the heat dissipation baffle box (4), so that the converter body (1) can be cooled and operate stably.

7. The dust-insulated and heat-insulated automotive DC-DC converter structure according to claim 6, characterized in that: The transmission mechanism comprises: a guide block (12), wherein the guide block (12) is fixedly mounted on the outer surface of the rotating shaft of the cooling fan (10), and the cooling fan (10) and the guide block (12) are concentrically designed, and a groove is provided on the outer surface of the guide block (12); a piston (13) is slidably mounted inside the pump seat (8), and one end of the piston (13) penetrates the outer surface of the pump seat (8), and the pump seat (8) and the piston (13) are engaged with each other, and one end of the piston (13) located outside the pump seat (8) is in contact with the groove of the guide block (12); a passage is provided inside the pump seat (8), and one-way valves (14) are fixedly mounted at both ends of the passage in the pump seat (8).

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