Two-way liquid cooling gun cooling device

Abstract

The utility model discloses a cooling device of a two-way liquid cooling gun, and belongs to the technical field of charging gun liquid cooling. According to the double-path liquid cooling gun cooling device provided by the scheme of the utility model, two paths share the multi-layer micro-channel heat exchanger, the layout is compact, the two oil pumps are adopted to independently feed cooling liquid to the two charging guns, the flow of the cooling liquid can be accurately and independently controlled, the two paths do not interfere with each other, the heat dissipation requirement of each charging gun is effectively ensured, the working energy consumption of the oil pumps is reduced, and the working efficiency is improved. The reliability and service life of the oil pump are improved. In addition, a common single-layer heat exchanger is replaced with the high-density multi-layer micro-channel heat exchanger, the heat exchange efficiency is improved, the overall power consumption of the cooling device is reduced, and the size of the cooling device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling of charging guns, in particular to a dual-path liquid cooling gun cooling device. Background Art

[0002] In order to improve charging efficiency and safety, more and more charging guns support liquid cooling function, that is, by connecting to a matching external cooling device, the cables, gun head connectors and other parts of the charging gun are cooled by liquid.

[0003] The charging piles on the market are usually equipped with one or two charging guns. In order to cool down the two charging guns in a charging pile at the same time, the existing technology usually uses an oil pump to pass coolant to the two charging guns at the same time, and uses a single-layer heat exchanger for heat exchange. With this solution, when the two guns work at the same time, the mechanical loss of the pump body is large, and the equal flow of coolant in the two guns cannot be guaranteed, which may cause the two liquid-cooled charging guns to fail to meet the heat dissipation requirements. The single-layer heat exchanger has low heat exchange efficiency, large size, and high power consumption. Utility Model Content

[0004] In view of the above problems in the background technology, the utility model provides a dual-path liquid cooling gun cooling device.

[0005] The utility model provides a dual-path liquid-cooling gun cooling device, which includes a housing, an axial flow fan, a heat exchanger, an oil pump, an oil tank, a controller, a liquid inlet branch block, and a liquid outlet branch block, wherein:

[0006] The axial flow fan is fixed on one side of the housing;

[0007] The heat exchanger is a high-density multi-layer microchannel heat exchanger, and the heat exchanger is fixed on a side of the housing opposite to the axial flow fan;

[0008] The oil pump comprises a first power pump and a second power pump, and the oil pump is arranged at the bottom of the housing;

[0009] The oil tank is arranged above the oil pump;

[0010] The liquid inlet shunt block and the liquid outlet shunt block are arranged above the oil tank; the liquid inlet shunt block is connected to the oil pump and the liquid inlet pipe of the charging gun; the liquid outlet shunt block is connected to the liquid outlet pipe of the charging gun and the heat exchanger;

[0011] The controller is arranged above the heat exchanger; the controller is communicatively connected with the control system, the oil pump, and the axial flow fan of the charging gun;

[0012] The oil tank and the oil pump, the oil pump and the liquid inlet branch block, the liquid outlet branch block and the heat exchanger, and the heat exchanger and the oil tank are all connected through a medium transmission pipe, and the medium transmission pipe is a hose.

[0013] Preferably, a graduated liquid level gauge is disposed outside the oil tank, and a liquid level sensor is disposed inside the oil tank, and the liquid level sensor is communicatively connected to the controller.

[0014] Preferably, the first power pump and the second power pump are stacked up and down.

[0015] Preferably, the first power pump and the second power pump are arranged in parallel on the bottom surface of the housing.

[0016] Preferably, the heat exchanger is a high-density double-layer microchannel heat exchanger.

[0017] Preferably, the high-density double-layer microchannel heat exchanger is configured in series.

[0018] Preferably, the high-density double-layer microchannel heat exchanger is configured in parallel.

[0019] Preferably, the medium transmission tube is a synthetic rubber tube.

[0020] Preferably, the medium transmission tube is a nylon tube.

[0021] The utility model has the following beneficial effects: the dual-path liquid-cooled gun cooling device provided by the utility model has a shared multi-layer microchannel heat exchanger in two paths, which has a compact layout and uses two oil pumps to independently pass coolant to two charging guns, which can accurately and independently control the coolant flow rate, and the two paths do not interfere with each other, effectively ensuring the heat dissipation requirements of each charging gun, while reducing the working energy consumption of the oil pump, and improving the reliability and life of the oil pump. In addition, the high-density multi-layer microchannel heat exchanger is used to replace the ordinary single-layer heat exchanger, which improves the heat exchange efficiency, reduces the overall power consumption of the cooling device, and reduces the volume of the cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1-Figure 2 A schematic structural diagram of a dual-path liquid-cooling gun cooling device provided in an embodiment of the utility model.

[0023] Figure 3 An exploded view of a dual-channel liquid-cooling gun cooling device provided in an embodiment of the utility model.

[0024] In the attached picture:

[0025] 1. Shell;

[0026] 2. Axial flow fan;

[0027] 3. Heat exchanger;

[0028] 4. Oil pump; 41. First power pump; 42. Second power pump;

[0029] 5. Fuel tank;

[0030] 6. Controller;

[0031] 7. Liquid inlet branch block;

[0032] 8. Liquid outlet block;

[0033] 9. Medium transmission pipe;

[0034] 10. Gun line oil pipe connection joint;

[0035] 11. Charging gun liquid inlet pipe;

[0036] 12. Charging gun liquid outlet pipe. DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0038] The dual-channel liquid-cooled gun cooling device provided by the solution of the utility model is used to liquid-cool two liquid-cooled charging guns in the same charging pile.

[0039] like Figure 1-3 As shown, an embodiment of the utility model provides a dual-path liquid-cooling gun cooling device, which includes a shell 1, an axial flow fan 2, a heat exchanger 3, an oil pump 4, an oil tank 5, a controller 6, a liquid inlet branch block 7, and a liquid outlet branch block 8.

[0040] like Figure 1-Figure 3 As shown, the liquid-cooling gun cooling device provided in the embodiment of the utility model adopts an integrated structure, and the whole machine adopts a intensive structural design, which has the characteristics of small size, low noise, low working power consumption, strong environmental adaptability, safety and reliability.

[0041] The axial flow fan 2 is fixed on one side of the housing 1. The axial flow fan inhales cold air and discharges hot air, and is used to extract air and dissipate heat for the entire cooling device.

[0042] The heat exchanger 3 is a high-density multi-layer microchannel heat exchanger, and the heat exchanger 3 is fixed on a side of the housing 1 opposite to the axial flow fan 2 .

[0043] In the embodiment of the utility model, the two liquid cooling channels share the heat exchanger 3, and a high-density multi-layer microchannel heat exchanger is used to replace the ordinary single-layer heat exchanger, which has higher heat exchange efficiency and occupies a smaller air duct area than a single layer with the same heat exchange amount, which is convenient for the internal layout of the charging pile.

[0044] The oil pump 4 includes a first power pump 41 and a second power pump 42 . The oil pump 4 is disposed at the bottom of the housing 1 .

[0045] The embodiment of the utility model adopts dual oil pumps to provide coolant, which can accurately and independently control the coolant flow rate, reduce the working energy consumption of the oil pump, and improve the reliability and life of the oil pump.

[0046] like Figure 1-Figure 2 As shown, in some embodiments of the present invention, the first power pump 41 and the second power pump 42 are stacked up and down. The stacking arrangement makes the space in the vertical direction more compact.

[0047] In some other embodiments of the utility model, the first power pump 41 and the second power pump 42 are arranged in parallel on the bottom surface of the housing 1. The parallel arrangement leaves more space in the vertical direction. In practical applications, the positional relationship of the two oil pumps 4 can be set according to the size of the oil pump 4, the housing 1 and the size of the internal space of the charging pile.

[0048] The oil tank 5 is arranged above the oil pump 4 .

[0049] In some embodiments of the utility model, the oil tank 5 is provided with a graduated level gauge on the outside and a level sensor on the inside. The level sensor is connected to the controller 6 for communication and sends out an alarm message when the liquid level is lower than a set threshold. The setting of the graduated level gauge and the level sensor enables the liquid level alarm to have the dual functions of manual precise observation and intelligent detection.

[0050] The liquid inlet branch block 7 and the liquid outlet branch block 8 are arranged above the oil tank 5; the liquid inlet branch block 7 is connected to the oil pump 4 and the charging gun liquid inlet pipe 11; the liquid outlet branch block 8 is connected to the charging gun liquid outlet pipe 12 and the heat exchanger 3.

[0051] In the embodiment of the utility model, the liquid inlet branch block 7 and the liquid outlet branch block 8 are independently arranged to separate the cold and hot oil circuits. The liquid inlet branch block 7 and the liquid outlet branch block 8 adopt a modular design, which is convenient for installation and compatible with a variety of connectors and pipe diameters. The liquid inlet branch block 7 converts the coolant from the two power pumps 4 to the corresponding charging gun inlet channel. The liquid outlet branch block 8 gathers the coolant from the two charging guns together and then connects to the heat exchanger 3.

[0052] The liquid inlet shunt block 7, the liquid outlet shunt block 8 and the charging gun liquid cooling pipe are connected with self-sealing joints, which are convenient for installation and maintenance and reduce liquid reflux and outflow. The charging gun liquid cooling pipeline has a 1-in 2-out type and a 2-in 2-out type. In the embodiment of the utility model, the liquid inlet shunt block 7 reserves 8 charging gun liquid inlet channels, and the liquid outlet shunt block 8 reserves 8 charging gun liquid outlet channels. Through the control of each channel and valve, it is compatible with both 1-in 2-out type charging guns and 2-in 2-out type charging guns. The liquid inlet pipe 11 and the liquid outlet pipe 12 of the charging gun are respectively connected to the liquid inlet channel of the liquid inlet shunt block 7 and the liquid outlet channel of the liquid outlet shunt block 8 through the gun line oil pipe connecting joint 10.

[0053] The controller 6 is arranged above the heat exchanger 3; the controller 6 is in communication with the control system of the charging gun, the oil pump 4, and the axial flow fan 2. The controller 6 uses an intelligent algorithm PID adjustment to ensure precise control and protection of liquid cooling. The controller 6 adjusts the speed of the oil pump and the speed of the axial flow fan according to the temperature of the gun line, the temperature of the coolant, and the system pressure.

[0054] In the embodiment of the utility model, the oil tank 5 and the oil pump 4, the oil pump 4 and the liquid inlet branch block 7, the liquid outlet branch block 8 and the heat exchanger 3, and the heat exchanger 3 and the oil tank 5 are all connected through a medium transmission pipe 9, and the medium transmission pipe 9 is a hose. The use of a hose can be designed according to the available space inside the charging pile, making the charging pile smaller and more compact.

[0055] In the embodiment of the utility model, the oil tank 5 and the oil pump 4, the oil pump 4 and the liquid inlet branch block 7, the liquid outlet branch block 8 and the heat exchanger 3, and the heat exchanger 3 and the oil tank 5 are connected by a hose + a joint + a single-ear stepless clamp.

[0056] The utility model has no special restrictions on the specific material of the hose. In some embodiments of the utility model, the medium transmission tube 9 is a synthetic rubber tube. In other embodiments of the utility model, the medium transmission tube 9 is a nylon tube.

[0057] The coolant can be dimethyl silicone oil, water glycol or electronic fluorinated liquid. In addition, you can also use special coolants produced by some lubricant manufacturers, such as Shell E4 CCF (charging cooling fluid).

[0058] In some embodiments of the present invention, the heat exchanger 3 is a high-density double-layer microchannel heat exchanger.

[0059] The high-density double-layer microchannel heat exchanger has a first heat exchange layer and a second heat exchange layer. In some embodiments of the utility model, the high-density double-layer microchannel heat exchanger is configured in series. The series configuration means that the two heat exchange layers are connected in sequence, and the coolant first enters the first heat exchange layer, and after one heat exchange, enters the second heat exchange layer. The advantage of this method is that it can achieve a step-by-step temperature drop. In other embodiments of the utility model, the high-density double-layer microchannel heat exchanger is configured in parallel. The parallel configuration is to connect the two heat exchange layers in parallel, and the coolant passes through all the heat exchange layers at the same time, and each heat exchange layer processes a part of the coolant. This method can significantly increase the total heat exchange area, keep the pressure drop of each heat exchange layer relatively low, and improve the overall heat exchange capacity.

[0060] In other embodiments of the utility model, the heat exchanger may also be a high-density microchannel heat exchanger with other layers, or other heat exchangers with small size, low power consumption but high heat dissipation efficiency.

[0061] In the embodiment of the utility model, the dual-path liquid cooling gun cooling device further includes a temperature sensor and a pressure sensor, the temperature sensor is used to detect the temperature of the coolant in each link, and the pressure sensor is used to detect the pressure of the coolant in the medium transmission pipe. The temperature sensor and the pressure sensor are communicatively connected to the controller.

[0062] The working principle of the dual-channel liquid cooling gun cooling device provided by the utility model is as follows:

[0063] The controller 6 controls the oil pump 4 to start, and the coolant flows from the oil tank 5 into the liquid inlet of the oil pump 4 through the medium transmission pipe 9, and then flows from the liquid outlet of the oil pump 4 into the liquid inlet branch block 7 through the medium transmission pipe 9, and circulates inside the gun line through the gun line oil pipe connection joint 10, and then returns to the liquid outlet branch block 8, and then flows into the heat exchanger 3 through the medium transmission pipe 9 for cooling, and then returns to the oil tank 5 through the medium transmission pipe 9, and so on. The controller 6 independently controls the two oil pumps 4, and can control the cooling of two charging guns at the same time, or control the cooling of any charging gun separately. The controller 6 adopts intelligent algorithm PID adjustment to ensure precise control and protection of liquid cooling. The controller 6 adjusts the speed of the oil pump and the speed of the axial flow fan according to the temperature of the gun line, the temperature of the coolant, and the system pressure.

[0064] The utility model has the following beneficial effects: the dual-path liquid-cooled gun cooling device provided by the utility model has a shared multi-layer microchannel heat exchanger in two paths, which has a compact layout and uses two oil pumps to independently pass coolant to two charging guns, which can accurately and independently control the coolant flow rate, and the two paths do not interfere with each other, effectively ensuring the heat dissipation requirements of each charging gun, while reducing the working energy consumption of the oil pump, and improving the reliability and life of the oil pump. In addition, the high-density multi-layer microchannel heat exchanger is used to replace the ordinary single-layer heat exchanger, which improves the heat exchange efficiency, reduces the overall power consumption of the cooling device, and reduces the volume of the cooling device.

[0065] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms of deformation without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A dual-channel liquid cooling gun cooling device, characterized in that: The cooling device comprises a housing (1), an axial flow fan (2), a heat exchanger (3), an oil pump (4), an oil tank (5), a controller (6), a liquid inlet branch block (7), and a liquid outlet branch block (8), wherein: The axial flow fan (2) is fixed on one side of the housing (1); The heat exchanger (3) is a high-density multi-layer microchannel heat exchanger, and the heat exchanger is fixed on a side of the housing (1) opposite to the axial flow fan (2); The oil pump (4) comprises a first power pump (41) and a second power pump (42), and the oil pump (4) is arranged at the bottom of the housing (1); The oil tank (5) is arranged above the oil pump (4); The liquid inlet branch block (7) and the liquid outlet branch block (8) are arranged above the oil tank (5); the liquid inlet branch block (7) is connected to the oil pump (4) and the charging gun liquid inlet pipe (11); the liquid outlet branch block (8) is connected to the charging gun liquid outlet pipe (12) and the heat exchanger (3); The controller (6) is arranged above the heat exchanger (3); the controller (6) is communicatively connected with the control system of the charging gun, the oil pump (4), and the axial flow fan (2); The oil tank (5) and the oil pump (4), the oil pump (4) and the liquid inlet branch block (7), the liquid outlet branch block (8) and the heat exchanger (3), and the heat exchanger (3) and the oil tank (5) are all connected via a medium transmission pipe (9), and the medium transmission pipe (9) is a hose.

2. The dual-path liquid cooling gun cooling device according to claim 1, characterized in that: The oil tank (5) is provided with a graduated liquid level gauge on the outside and a liquid level sensor on the inside, and the liquid level sensor is communicatively connected with the controller (6).

3. The dual-path liquid cooling gun cooling device according to claim 1, characterized in that: The first power pump (41) and the second power pump (42) are stacked up and down.

4. The dual-path liquid cooling gun cooling device according to claim 1, characterized in that: The first power pump (41) and the second power pump (42) are arranged in parallel on the bottom surface of the housing (1).

5. The dual-path liquid cooling gun cooling device according to claim 1, characterized in that: The heat exchanger (3) is a high-density double-layer microchannel heat exchanger.

6. The dual-path liquid cooling gun cooling device according to claim 5, characterized in that: The high-density double-layer microchannel heat exchanger is configured in series.

7. The dual-path liquid cooling gun cooling device according to claim 5, characterized in that: The high-density double-layer microchannel heat exchanger is configured in parallel.

8. The dual-path liquid cooling gun cooling device according to claim 1, characterized in that: The medium transmission pipe (9) is a synthetic rubber pipe.

9. The dual-path liquid cooling gun cooling device according to claim 1, characterized in that: The medium transmission tube (9) is a nylon tube.

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