A charging gun with high heat dissipation and sealing function

Abstract

The present invention belongs to the technical field of sealing of charging gun cables, and in particular relates to a charging gun with high heat dissipation sealing function, including a DC copper column bracket, a DC copper column, a plastic three-way pipe and soft silicone, the soft silicone and the DC copper column bracket are fixed by self-tapping screws, the surface of the self-tapping screws is sleeved with a rubber sleeve, and the bottom end of the DC copper column bracket is provided with a ventilation mechanism, and the charging gun can be cooled by the ventilation mechanism; the present invention is provided with a ventilation mechanism, when in use, by assembling the DC copper column bracket, the DC copper column, the plastic three-way pipe and the soft silicone, at this time, the air will enter the first cavity from the first filter at the bottom, and then be discharged through the ventilation groove to contact the bottom end of the soft silicone, thereby cooling the charging gun.

Description

Technical Field

[0001] The present invention belongs to the technical field of sealing of charging gun cables, and in particular relates to a charging gun with high heat dissipation and sealing functions. Background Art

[0002] A charging gun is a device used to charge electric vehicles. According to different charging standards, charging guns can be divided into the following types: AC charger and DC charger.

[0003] The main components of the charging gun include the power plug, the charging gun head, the cable and the vehicle connector for connecting the electric vehicle. The power plug is similar to the plug of household appliances and can be 10A or 16A. The charging gun integrates functions such as power supply control, control guidance, leakage protection, etc. Some high-end charging guns also integrate other functions such as displaying the real-time status of the charging process and temperature control. The cables are divided into the wires between the plug and the control protection box and the wires between the control protection box and the vehicle connector. They usually use high-quality pure copper cables with the advantages of flame retardancy, impact resistance, waterproofness and high temperature resistance.

[0004] However, although the existing charging guns can be effectively sealed, the heat generated by the charging gun during operation cannot be discharged in time, and the accumulated heat will cause damage to the electronic components inside the charging gun, thereby reducing the service life of the charging gun. Summary of the invention

[0005] The present invention aims to solve the problem in the prior art that the heat emitted by the charging gun during operation cannot be discharged in time, and the accumulated heat will cause damage to the electronic components inside the charging gun, thereby reducing the service life of the charging gun. The present invention proposes the following technical solutions:

[0006] A charging gun with high heat dissipation and sealing function comprises a DC copper column bracket, a DC copper column, a plastic three-way pipe and soft silicone, wherein the plastic three-way pipe is inserted between two DC copper columns, and a plurality of circular grooves are provided on both sides and the front surface of the plastic three-way pipe, and an oil seal ring is provided inside each circular groove, and the two DC copper columns and the plastic three-way pipe are both sleeved inside the soft silicone, and through holes are provided at both ends of one side of the DC copper column bracket, and the soft silicone is inserted in the DC copper column bracket, and the DC copper column is located between the through holes, and the soft silicone and the DC copper column bracket are fixed by self-tapping screws, and a rubber sleeve is sleeved on the surface of the self-tapping screws, and a ventilation mechanism is provided at the bottom end of the DC copper column bracket, and the charging gun can be cooled by the ventilation mechanism.

[0007] As a preferred embodiment of the above technical solution, the ventilation mechanism includes: a ventilation groove, a first cavity is opened inside the DC copper column bracket, the ventilation groove is connected to the first cavity, there are several ventilation grooves and they are equidistantly arranged, the bottom end of the first cavity is connected to an installation groove, and a first filter is fixedly connected to the inside of the installation groove.

[0008] As a preferred embodiment of the above technical solution, grooves are provided on both sides of the inner wall of the DC copper column bracket, a number of ventilation holes are provided between the two sides of the DC copper column bracket and the grooves, and a baffle is slidably connected to one side of each groove.

[0009] As a preferred embodiment of the above technical solution, a second cavity is opened inside the DC copper column bracket and is located directly above the first cavity. Mounting frames are fixedly connected to both sides of the top of the DC copper column bracket, and a second filter is inserted between the tops of the two mounting frames. A water inlet is opened at the top of the DC copper column bracket, which is located between the two mounting frames and connected to the second cavity.

[0010] As a preferred embodiment of the above technical solution, a piston is slidably connected to one side of the second cavity, and a first spring is fixedly connected between both ends of one side of the piston and the second cavity. A water outlet is provided on one side of the second cavity and below the piston, and a drainage groove is provided at the bottom end of the water outlet that is connected to the inside of the DC copper column bracket, and the shape of the drainage groove is arc-shaped.

[0011] As a preferred embodiment of the above technical solution, a card slot is provided at the top of each mounting frame, a limiting slot is provided on one side of each card slot, card blocks are fixedly connected on both sides of the bottom end of the second filter, and limiting blocks are inserted on both sides of the opposite sides of the card block.

[0012] As a preferred embodiment of the above technical solution, one side of each limit block close to the limit slot is set as an arc surface, and a second spring is fixedly connected between the two ends of the other side of each limit block and the clamping block, and the diameters of the clamping slot and the clamping block are consistent.

[0013] As a preferred embodiment of the above technical solution, the plastic three-way pipe is arranged to be inclined downward, and the bottom end of the plastic three-way pipe is arranged to be in the shape of a conical guide cup. The plastic three-way pipe adopts plastic connection to play an insulating role.

[0014] As a preferred embodiment of the above technical solution, the plastic three-way pipe and the DC copper column bracket are made of PA66+20% GF engineering plastic, the DC copper column is made of red copper, and the soft silicone is made of liquid silicone.

[0015] The beneficial effects of the present invention are:

[0016] (1) By providing a ventilation mechanism, when in use, by assembling the DC copper column bracket, the DC copper column, the plastic three-way pipe and the soft silicone, air will enter the first cavity from the first filter at the bottom, and then be discharged through the ventilation groove to contact the bottom of the soft silicone, thereby dissipating heat from the charging gun;

[0017] (2) By providing a baffle, when the soft silicone is installed inside the DC copper column bracket, the two sides of the soft silicone will squeeze the baffle and move it backward, so that the groove is connected to the first cavity. At this time, air will enter from the bottom and the vents on both sides, thereby improving the heat dissipation effect of the charging gun;

[0018] (3) By providing a mounting frame, a second cavity and a piston, air will enter from the second filter above into between the two mounting frames, and then enter into the second cavity, thereby dissipating the heat of the charging gun. When it rains, rainwater will pass through the second filter into the second cavity and accumulate, further dissipating the heat of the charging gun. As the amount of rainwater gradually increases, the piston is squeezed and moves downward, and the rainwater will enter the drainage trough through the water outlet and be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 What is shown is a three-dimensional structural schematic diagram;

[0020] Figure 2 It shows Figure 1 The schematic diagram of the structure after the DC copper column bracket is removed;

[0021] Figure 3 The structure diagram after the DC copper column and the plastic tee pipe are separated is shown;

[0022] Figure 4 What is shown is a schematic diagram of the structure of a DC copper column support;

[0023] Figure 5 It shows Figure 4 Schematic diagram of the structure after sectioning;

[0024] Figure 6 It shows Figure 5 Schematic diagram of the structure from another perspective after sectioning;

[0025] Figure 7 Shown is a schematic structural diagram after the second filter screen and the mounting frame are separated.

[0026] In the figure: 1. DC copper column bracket; 2. DC copper column; 3. Plastic tee pipe; 4. Oil seal ring; 5. Soft silicone; 6. Self-tapping screw; 7. Rubber sleeve; 8. First cavity; 9. Ventilation slot; 10. First filter screen; 11. Air vent; 12. Slide slot; 13. Baffle; 14. Second cavity; 15. Mounting bracket; 16. Second filter screen; 17. Piston; 18. First spring; 19. Drain groove; 20. Slot; 21. Limiting slot; 22. Block; 23. Limiting block; 24. Water outlet; 25. Through hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] Embodiment: The present invention provides a charging gun with high heat dissipation and sealing function, such as Figures 1 to 5 As shown, it includes a DC copper column bracket 1, a DC copper column 2, a plastic three-way pipe 3 and a soft silicone 5. The plastic three-way pipe 3 is inserted between the two DC copper columns 2. Both sides and the front surface of the plastic three-way pipe 3 are provided with a plurality of circular grooves. An oil seal ring 4 is provided inside each circular groove. The two DC copper columns 2 and the plastic three-way pipe 3 are sleeved inside the soft silicone 5. Both ends of one side of the DC copper column bracket 1 are connected and provided with through holes 25. The soft silicone 5 is inserted in the DC copper column bracket 1, and the DC copper column 2 is located between the through holes 25. The soft silicone 5 and the DC copper column bracket 1 are fixed by self-tapping screws 6. The surface of the self-tapping screws 6 is sleeved with a rubber sleeve 7. The bottom end of the DC copper column bracket 1 is provided with a ventilation mechanism, and the charging gun can be ventilated through the ventilation mechanism. Heat, the plastic tee 3 is set to be tilted downward, and the bottom end of the plastic tee 3 is set to be a conical guide cup shape. The plastic tee 3 is connected by plastic to play a certain insulating role. The plastic tee 3 and the DC copper column bracket 1 are made of PA66+20% GF engineering plastic, which has high rigidity and wear resistance, and has high compressive strength and tensile strength and other mechanical properties. It has good heat resistance and can be used for a long time at high temperature. It also has good corrosion resistance. The DC copper column 2 is made of copper. Copper has good electrical conductivity and thermal conductivity, and also has good corrosion resistance. The soft silicone 5 is made of liquid silicone. Liquid silicone has excellent tear strength, resilience, thermal stability, water resistance, good air permeability, heat aging resistance and weather resistance.

[0029] like Figures 4 to 5As shown, the ventilation mechanism includes: ventilation slots 9, a first cavity 8 is opened inside the DC copper column bracket 1, the ventilation slots 9 are connected to the first cavity 8, there are several ventilation slots 9 and they are equidistantly arranged, the bottom end of the first cavity 8 is connected to a mounting slot, and a first filter 10 is fixedly connected inside the mounting slot. The air is filtered by the first filter 10 to allow clean air to enter the first cavity 8. When in use, the C copper column bracket 1, the DC copper column 2, the plastic three-way pipe 3 and the soft silicone 5 are assembled. At this time, the air will enter the first cavity 8 from the first filter 10 at the bottom, and then be discharged through the ventilation slot 9 to contact the bottom end of the soft silicone 5, thereby dissipating the heat of the charging gun.

[0030] like Figures 4 to 5 As shown, grooves are provided on both sides of the inner wall of the DC copper column bracket 1, and a number of vents 11 are provided between the two sides of the DC copper column bracket 1 and the grooves. A baffle 13 is slidably connected to one side of each groove, and a third spring is fixedly connected between the baffle 13 and the groove. When the soft silicone 5 is installed inside the DC copper column bracket 1, the two sides of the soft silicone 5 will squeeze the baffle 13 and move it backward, so that the groove is connected to the first cavity 8. At this time, air will enter from the vents 11 at the bottom and on both sides, thereby improving the heat dissipation effect of the charging gun.

[0031] like Figures 5 to 6 As shown, a second cavity 14 is provided inside the DC copper column bracket 1 and is located directly above the first cavity 8. Mounting frames 15 are fixedly connected to both sides of the top of the DC copper column bracket 1. A second filter screen 16 is inserted between the tops of the two mounting frames 15. A water inlet is provided at the top of the DC copper column bracket 1 and is located between the two mounting frames 15 and is connected to the second cavity 14. A piston 17 is slidably connected to one side of the second cavity 14. A first spring 18 is fixedly connected between both ends of one side of the piston 17 and the second cavity 14. A water outlet 24 is provided on one side of the second cavity 14 and below the piston 17. The bottom end of the water outlet 24 is connected to the inside of the DC copper column bracket 1 and is provided with a drainage groove 19. The shape of the drainage groove 19 is arc-shaped. Air will also enter between the two mounting frames 15 from the second filter 16 above, and then enter the second cavity 14 through the water inlet, thereby dissipating the heat of the charging gun. When it rains, rainwater will pass through the second filter 16 into the second cavity 14 and accumulate, further dissipating the heat of the charging gun. As the rainwater gradually increases, the piston 17 is squeezed and moves downward, and the rainwater will enter the drainage groove 19 through the water outlet 24 and then be discharged.

[0032] like Figure 7As shown, a slot 20 is provided at the top of each mounting frame 15, and a limiting slot 21 is provided on one side of each slot 20. Blocks 22 are fixedly connected to both sides of the bottom end of the second filter screen 16, and limiting blocks 23 are inserted on both sides of the opposite sides of the block 22. The side of each limiting block 23 close to the limiting slot 21 is set as an arc surface, and a second spring is fixedly connected between the two ends of the other side of each limiting block 23 and the block 22. The diameters of the slot 20 and the block 22 are consistent. By pulling the second filter screen 16 upward, the limiting block 23 is squeezed and compressed back into the block 22, and the fixation of the second filter screen 16 is released, and then the second filter screen 16 is removed for cleaning.

[0033] Working principle: When in use, by assembling the C copper column bracket 1, the DC copper column 2, the plastic three-way pipe 3 and the soft silicone 5, the air will enter the first cavity 8 from the first filter 10 at the bottom, and then be discharged through the ventilation groove 9 to contact the bottom of the soft silicone 5, thereby dissipating the heat of the charging gun. When the soft silicone 5 is installed inside the DC copper column bracket 1, the two sides of the soft silicone 5 will squeeze the baffle 13 and move it backward, so that the groove is connected to the first cavity 8, and the air will be discharged from the bottom and the two sides of the ventilation groove. The air enters through the air hole 11, thereby improving the heat dissipation effect of the charging gun. The air will also enter between the two mounting frames 15 from the second filter 16 above, and then enter the second cavity 14 through the water inlet, thereby dissipating the heat of the charging gun. When it rains, the rainwater will pass through the second filter 16 into the second cavity 14 and accumulate, further dissipating the heat of the charging gun. As the rainwater gradually increases, the piston 17 is squeezed and moves downward, and the rainwater will enter the drain groove 19 through the water outlet 24 and then be discharged.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A charging gun with high heat dissipation and sealing function, characterized in that: It comprises a DC copper column bracket (1), a DC copper column (2), a plastic three-way pipe (3) and soft silicone (5), wherein the plastic three-way pipe (3) is inserted between two DC copper columns (2), a plurality of circular grooves are provided on both sides and the front surface of the plastic three-way pipe (3), and an oil seal ring (4) is provided inside each circular groove, the two DC copper columns (2) and the plastic three-way pipe (3) are sleeved inside the soft silicone (5), both ends of one side of the DC copper column bracket (1) are connected and provided with through holes (25), the soft silicone (5) is inserted into the DC copper column bracket (1), and the DC copper column (2) is located between the through holes (25), the soft silicone (5) and the DC copper column bracket (1) are fixed by self-tapping screws (6), the surface of the self-tapping screws (6) is sleeved with a rubber sleeve (7), and the bottom end of the DC copper column bracket (1) is provided with a ventilation mechanism, and the charging gun can be cooled by the ventilation mechanism; The ventilation mechanism comprises: a ventilation slot (9), a first cavity (8) is provided inside the DC copper column bracket (1), the ventilation slot (9) is connected to the first cavity (8), there are a plurality of ventilation slots (9) which are arranged at equal distances, a mounting slot is provided at the bottom end of the first cavity (8), and a first filter screen (10) is fixedly connected inside the mounting slot; Grooves are provided on both sides of the inner wall of the DC copper column bracket (1), a plurality of vent holes (11) are provided between both sides of the DC copper column bracket (1) and the grooves, and a baffle (13) is slidably connected to one side of each groove; A second cavity (14) is provided inside the DC copper column bracket (1) and is located directly above the first cavity (8); mounting frames (15) are fixedly connected to both sides of the top of the DC copper column bracket (1); a second filter screen (16) is inserted between the tops of the two mounting frames (15); and a water inlet is provided at the top of the DC copper column bracket (1) and is located between the two mounting frames (15) and is in communication with the second cavity (14); A piston (17) is slidably connected to one side of the second cavity (14); a first spring (18) is fixedly connected between both ends of one side of the piston (17) and the second cavity (14); a water outlet (24) is provided on one side of the second cavity (14) and below the piston (17); a drainage groove (19) is provided at the bottom end of the water outlet (24) which is in communication with the interior of the DC copper column bracket (1); and the drainage groove (19) is in an arc shape.

2. The charging gun with high heat dissipation and sealing function according to claim 1, characterized in that: A slot (20) is provided at the top of each mounting frame (15), a limiting slot (21) is provided on one side of each slot (20), a block (22) is fixedly connected to both sides of the bottom of the second filter screen (16), and limiting blocks (23) are inserted on both sides of the opposite sides of the block (22).

3. The charging gun with high heat dissipation and sealing function according to claim 2, characterized in that: One side of each of the limit blocks (23) close to the limit slot (21) is configured as an arc surface, and a second spring is fixedly connected between the two ends of the other side of each of the limit blocks (23) and the clamping block (22), and the diameters of the clamping slot (20) and the clamping block (22) are consistent.

4. The charging gun with high heat dissipation and sealing function according to claim 1, characterized in that: The plastic three-way pipe (3) is arranged to be inclined downward, and the bottom end of the plastic three-way pipe (3) is arranged in a conical guide cup shape. The plastic three-way pipe (3) is connected by plastic to play an insulating role.

5. The charging gun with high heat dissipation and sealing function according to claim 1, characterized in that: The plastic three-way pipe (3) and the DC copper column bracket (1) are made of PA66+20% GF engineering plastic, the DC copper column (2) is made of red copper, and the soft silicone (5) is made of liquid silicone.

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