Charging gun temperature cooling module

Abstract

The utility model discloses a charging gun temperature cooling module which comprises a main box body and a water supplementing box, and a radiator and a conveying pump are installed in the main box body. The water outlet end of the water inlet pipe extends into the main box body and is communicated with the water inlet of the delivery pump, the water outlet of the delivery pump is communicated with one end of the first water outlet pipe, the other end of the first water outlet pipe is communicated with the water inlet of the radiator, the water outlet of the radiator is communicated with one end of the water outlet pipe, and the other end of the water outlet pipe extends out of the main box body; the middle part of the water inlet pipe is communicated with one end of a middle liquid return pipe, the other end of the middle liquid return pipe is fixed on a top plate of the water replenishing tank and is communicated with the water replenishing tank, a bottom plate of the water replenishing tank is communicated with one end of a water replenishing pipe, and the other end of the water replenishing pipe extends into the main box body and is communicated with the middle part of the water outlet pipe. Water liquid in the pipeline only needs to be circularly cooled, the water replenishing tank only needs to replenish water, and all the water liquid in the water replenishing tank does not need to be circulated, so that the delivery pump is low in power requirement, low in energy consumption and good in effect.

Description

Technical field:

[0001] The utility model relates to the technical field of charging gun temperature control equipment, and more specifically to a charging gun temperature cooling module. Background technology:

[0002] With the rapid development of new energy electric vehicles, the application of charging piles for electric vehicles is becoming more and more widespread. At the same time, car owners have put forward higher and higher requirements for the charging speed of electric vehicles. With the continuous advancement of battery technology, the charging current that batteries can accept is getting larger and larger. With the growing market demand for high-power and extremely fast charging, the charging piles on the market are basically dominated by high-power DC fast charging piles.

[0003] The charging of electric vehicle power batteries is mainly achieved by connecting the charging pile to the electric vehicle charging interface through the charging gun;

[0004] The maximum charging current of the current mainstream products is 600A. Since the current market demand is mainly for DC fast charging piles, the charging current used by the charging gun in many cases is very large, almost reaching the maximum current that the charging gun can output. Since the charging gun is plugged into the charging port of the electric vehicle when charging the electric vehicle, the two transmit electrical energy through the contact between the copper male and female terminals. The terminal contact will generate contact resistance. When for some reason, such as the charging gun is not fully inserted into place, or the charging gun / electric vehicle interface is worn due to long-term use, so that the two are not in good contact, the contact resistance will increase, causing the charging gun to heat up seriously, which not only causes safety hazards, but also may even cause fire hazards.

[0005] As for the dangers that may be caused by the temperature rise of the charging gun itself, the existing method is to connect the charging gun with a cooling system, and cool the charging gun and the connecting wire connected thereto by the cooling water of the cooling system flowing through the charging gun and the connecting wire connected thereto to exchange heat with them, thereby cooling the charging gun and the connecting wire connected thereto to ensure their normal use;

[0006] In the existing cooling circuit, the circulating water is the water in the entire water tank that is recycled as a whole. The overall water circulation requires a large power requirement for the delivery pump, consumes a lot of energy, and the effect is not ideal. Utility model content:

[0007] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a charging gun temperature cooling module, which only needs to circulate and cool the water in the pipeline. It only needs to replenish water in the water tank, and all the water in it does not need to enter the circulation, so that the power requirement of the delivery pump is not high, the energy consumption is low, and the effect is good.

[0008] The solution of the utility model to solve the technical problem is:

[0009] A charging gun temperature cooling module comprises a main box and a water supply tank, wherein a radiator and a delivery pump are installed in the main box;

[0010] The water outlet end of the water inlet pipe extends into the main box and is connected to the water inlet of the delivery pump. The water outlet of the delivery pump is connected to one end of the first water outlet pipe. The other end of the first water outlet pipe is connected to the water inlet of the radiator. The water outlet of the radiator is connected to one end of the water outlet pipe. The other end of the water outlet pipe extends out of the main box.

[0011] The middle part of the water inlet pipe is connected to one end of the middle liquid return pipe, the other end of the middle liquid return pipe is fixed on the top plate of the water replenishment tank and communicated with the water replenishment tank, the bottom plate of the water replenishment tank is connected to one end of the water replenishment pipe, the other end of the water replenishment pipe extends into the main box body and communicated with the middle part of the water outlet pipe.

[0012] The water replenishment tank is located outside the main box body, and the installation position of the water replenishment tank is higher than the top surface of the main box body.

[0013] A mounting shell is fixed to the lower part of the inner wall of the right side plate of the main box body, a radiator is fixed to the left side of the mounting shell, the radiator covers the left through slot of the mounting shell, a cooling fan is installed in the mounting shell, the air inlet of the cooling fan faces the radiator, and the air outlet of the cooling fan faces the multiple air outlet holes formed at the lower part of the right side plate of the main box body.

[0014] The outstanding effects of the utility model are:

[0015] Compared with the prior art, it only needs to circulate and cool the water in the pipeline, and it only needs to replenish water in the water tank. All the water in it does not need to enter the circulation, so that the power requirement of the delivery pump is not high, the energy consumption is low, and the effect is good. Description of the drawings:

[0016] Figure 1 It is a partial structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model without the installation shell;

[0018] Figure 3 yes Figure 1 Schematic diagram of the local structure for changing angle. Specific implementation method:

[0019] For example, see Figures 1 to 3As shown, a charging gun temperature cooling module includes a main box body 10 and a water replenishing tank 20, a pump body connecting seat 13 is fixed on the inner wall of the upper left plate of the main box body 10, and a delivery pump 40 is fixed on the pump body connecting seat 13; a mounting shell 11 is fixed to the lower part of the inner wall of the right side plate of the main box body 10, a radiator 30 is fixed to the left side of the mounting shell 11, the radiator 30 covers the left through groove of the mounting shell 11, a heat dissipation fan 12 is installed in the mounting shell 11, an air inlet of the heat dissipation fan 12 faces the radiator 30, and an air outlet of the heat dissipation fan 12 faces a plurality of air outlet holes formed at the lower part of the right side plate of the main box body 10, and a plurality of left air outlet holes are formed at the lower part of the left side plate of the main box body 10. By running the cooling fan 12, the wind at the radiator 30 flows and exchanges heat with the radiator 30, and then is discharged from the air outlet through the cooling fan 12 to achieve heat dissipation. Of course, it can also be installed in reverse, so that external air enters from the air outlet through the cooling fan 12 and blows toward the radiator 30, so that the wind exchanges heat with the radiator 30 to cool it down, and then the wind is discharged from the left air outlet on the left side panel of the main box body 10.

[0020] The water inlet end of the water inlet pipe 50 is outside the main box 10 and can be connected to the cooling water outlet of the charging gun. The water outlet end of the water inlet pipe 50 passes through the top plate of the main box 10 and extends into the main box 10 to be connected to the water inlet of the delivery pump 40. The water outlet of the delivery pump 40 is connected to one end of the first water outlet pipe 60. The other end of the first water outlet pipe 60 is connected to the water inlet of the radiator 30. The water outlet of the radiator 30 is connected to one end of the water outlet pipe 70. The other end of the water outlet pipe 70 extends out of the top plate of the main box 10 and is connected to the cooling water inlet of the charging gun.

[0021] A power box, a controller and other components are fixed on the inner side wall of one side panel of the main box body 10. The electrical components in the main box body 10 are electrically connected to the controller through electrical connecting wires, and the controller is electrically connected to the power box.

[0022] The middle of the water inlet pipe 50 is connected to one end of the intermediate liquid return pipe 80, the other end of the intermediate liquid return pipe 80 is fixed on the top plate of the water replenishment tank 20 and communicates with the water replenishment tank 20, and the bottom plate of the water replenishment tank 20 is connected to one end of the water replenishment pipe 21, the other end of the water replenishment pipe 21 extends into the main box body 10 and is communicated with the middle of the water outlet pipe 70.

[0023] Furthermore, the water replenishment tank 20 is located outside the main box body 10 , and the installation position of the water replenishment tank 20 is higher than the top surface of the main box body 10 .

[0024] Furthermore, a one-way exhaust valve 22 is connected to the top plate of the water replenishment tank 20, a water replenishment connection through hole is formed on the top plate of the water replenishment tank 20, and a water replenishment connector is screwed into the water replenishment connection through hole.

[0025] A liquid level sensor 1 is fixed on the bottom plate of the water replenishment tank 20, and the sensing end of the liquid level sensor 1 is communicated with the inner cavity of the water replenishment tank 20. It can detect the water level of the water replenishment tank 20.

[0026] Two connecting seats are connected at the upper middle part of the water inlet pipe 50 and the upper middle part of the water outlet pipe 70. A first temperature sensor 2 and a first pressure sensor 3 are installed on the connecting seat of the water inlet pipe 50, and a second temperature sensor 4 and a second pressure sensor 5 are installed on the connecting seat of the water outlet pipe 70. All sensors are electrically connected to the controller through electrical connecting lines.

[0027] When this embodiment is in use, it is operated through the delivery pump 40, so that the liquid in the pipeline starts to circulate. After the water enters the delivery pump 40 from the water inlet pipe 50, it is transported to the radiator 30 and operated by the heat dissipation fan 12, so that the water is quickly cooled and dissipated in the radiator 30, and then enters the water outlet pipe 70 and flows back to the cooling water inlet of the charging gun to cool the charging gun and the connecting wires connected to it.

[0028] Among them, during the water circulation process, the first temperature sensor 2 and the first pressure sensor 3 can sense the water temperature and water pressure flowing out of the charging gun, while the second temperature sensor 4 and the second pressure sensor 5 can sense the water temperature and water pressure flowing into the charging gun, and transmit the sensing signal to the controller. The two sets of data can be compared by the controller to change the size of the air volume of the cooling fan 12, change its cooling effect, and meet the water temperature control needs.

[0029] During operation, the generated gas can enter the water supply tank 20 through the water supply pipe 21, and the exhaust is opened through the one-way exhaust valve 22 thereon. At the same time, when the water in the circulation pipeline is insufficient, the water in the water supply tank 20 is supplemented into the circulation pipeline through the water supply pipe 21 to ensure its normal operation.

[0030] When the water and gas in the water replenishment tank 20 are full, the water in multiple places can enter the middle liquid return pipe 80 to prevent overflow.

Claims

1. A charging gun temperature cooling module, comprising a main box (10) and a water supply tank (20), characterized in that: A radiator (30) and a delivery pump (40) are installed in the main box (10); The water outlet end of the water inlet pipe (50) extends into the main housing (10) and is connected to the water inlet of the delivery pump (40); the water outlet of the delivery pump (40) is connected to one end of a first water outlet pipe (60); the other end of the first water outlet pipe (60) is connected to the water inlet of the radiator (30); the water outlet of the radiator (30) is connected to one end of a water outlet pipe (70); the other end of the water outlet pipe (70) extends out of the main housing (10); The middle of the water inlet pipe (50) is connected to one end of an intermediate liquid return pipe (80), the other end of the intermediate liquid return pipe (80) is fixed to the top plate of the water replenishment tank (20) and communicates with the water replenishment tank (20), the bottom plate of the water replenishment tank (20) is connected to one end of a water replenishment pipe (21), the other end of the water replenishment pipe (21) extends into the main box body (10) and communicates with the middle of the water outlet pipe (70).

2. The charging gun temperature cooling module according to claim 1, characterized in that: The water replenishment tank (20) is located outside the main box body (10), and the installation position of the water replenishment tank (20) is higher than the top surface of the main box body (10).

3. The charging gun temperature cooling module according to claim 1, characterized in that: A one-way exhaust valve (22) is connected to the top plate of the water replenishment tank (20), a water replenishment connection through hole is formed on the top plate of the water replenishment tank (20), and a water replenishment connector is screwed into the water replenishment connection through hole.

4. The charging gun temperature cooling module according to claim 1, characterized in that: A mounting shell (11) is fixed to the lower portion of the inner wall of the right side plate of the main box body (10), a radiator (30) is fixed to the left side of the mounting shell (11), a heat dissipation fan (12) is installed in the mounting shell (11), an air inlet of the heat dissipation fan (12) faces the radiator (30), and an air outlet of the heat dissipation fan (12) faces a plurality of air outlet holes formed at the lower portion of the right side plate of the main box body (10).

5. The charging gun temperature cooling module according to claim 1, characterized in that: A pump body connection seat (13) is fixed on the inner side wall of the upper left side plate of the main box body (10), and a delivery pump (40) is fixed on the pump body connection seat (13).

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