A compact cooling device for converter

Abstract

The present invention discloses a compact cooling device for a converter, comprising a multifunctional compact radiator, a water pump, a fan unit, a liquid-electric integrated quick connector, a multifunctional frame and a pipeline system; the multifunctional compact radiator comprises a radiator main liquid chamber 1, a radiator core, a radiator main liquid chamber 2, a radiator auxiliary liquid chamber, a radiator water inlet pipe and a radiator water outlet pipe which are arranged in sequence and form an integrated structure, the radiator main liquid chamber 1 and the radiator main liquid chamber 2 are provided with a water inlet pipe or a water outlet pipe, the radiator auxiliary liquid chamber is provided with an exhaust stabilizing liquid pipe, and the radiator auxiliary liquid chamber is provided with a two-way pressure regulating valve and a water pump replenishing pipe; the fan unit is arranged on one side of the radiator core; the multifunctional compact radiator, the water pump, the fan unit and the liquid-electric integrated quick connector are arranged on the multifunctional frame and connected through the pipeline system. The cooling device has the advantages of simple structure, small space occupied, light weight and compact structure.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of rail transit equipment, and in particular to a compact cooling device for a converter. Background Art

[0002] At present, most locomotive and EMU traction converter cooling devices use forced liquid circulation + forced ventilation secondary cooling, which is commonly known as liquid cooling. The water cooling device using liquid cooling is mainly composed of radiator, fan unit, pump, expansion water tank, pipeline, load-bearing frame, temperature and pressure sensors, etc. The radiator plays a heat transfer role, and the heat of the high-temperature liquid is transferred to the cooling air through heat exchange in the radiator core; the function of the expansion water tank is to exhaust, replenish liquid and adjust the pressure of the cooling device; the load-bearing frame provides a support structure for the installation of various components of the cooling device; the cooling device and the converter are connected by pipelines.

[0003] In the existing converter water cooling device, the radiator and the expansion water tank adopt a separate structure, each of which is arranged at a different position of the cooling device, and an exhaust pipe is arranged between the radiator and the expansion water tank. In addition to the exhaust pipe between the two components, the above-mentioned separation scheme also needs to consider the installation components of the radiator and the expansion water tank separately. Therefore, the structure is complex, occupies a large space, and is heavy.

[0004] As locomotives and EMUs have increasingly stringent requirements on the volume and weight of cooling devices, how to improve the structural compactness of the components of the cooling devices has become a key issue facing the research and development of cooling devices. Summary of the invention

[0005] In view of the above problems, the present invention proposes a compact cooling device for a converter.

[0006] The technical means adopted by the present invention are as follows:

[0007] A compact cooling device for a converter, comprising a multifunctional compact radiator, a water pump, a fan unit, a liquid-electric integrated quick connector, a multifunctional frame and a piping system;

[0008] The multifunctional compact radiator comprises a radiator main liquid chamber 1, a radiator core, a radiator main liquid chamber 2, a radiator auxiliary liquid chamber, a first water pipe and a second water pipe, the radiator main liquid chamber 1 and the radiator main liquid chamber 2 are arranged at two ends of the radiator core, the radiator auxiliary liquid chamber is arranged at one end of the radiator main liquid chamber 2 away from the radiator core, the radiator main liquid chamber 1 is provided with the first water pipe, the radiator main liquid chamber 2 is provided with the second water pipe, the radiator auxiliary liquid chamber is provided with an exhaust stabilizing liquid pipe connecting the radiator main liquid chamber 2 and the radiator auxiliary liquid chamber, and the radiator auxiliary liquid chamber is provided with a two-way pressure regulating valve and a water pump replenishing pipe connected with the water inlet of the water pump;

[0009] The fan unit is arranged on one side of the radiator core;

[0010] The multifunctional compact radiator, water pump, fan unit and liquid-electric integrated quick connector are arranged on the multifunctional frame, and the multifunctional compact radiator, water pump and liquid-electric integrated quick connector are connected through the pipeline system.

[0011] Furthermore, one end of the exhaust stabilizing liquid pipe is arranged at the upper part of the second main liquid chamber of the radiator, and the other end is located at the lower part of the auxiliary liquid chamber of the radiator.

[0012] Furthermore, a flow hole adjusting device for adjusting the size of the flow hole of the exhaust stabilizing liquid pipe is provided on the box body of the auxiliary liquid chamber of the radiator.

[0013] Furthermore, a liquid stabilizing plate is provided in the auxiliary liquid chamber of the radiator, and a plurality of through holes are provided on the liquid stabilizing plate.

[0014] Furthermore, a visual liquid level meter is provided on the box body of the auxiliary liquid chamber of the radiator, and one or more liquid level switches are provided in the auxiliary liquid chamber of the radiator.

[0015] Further, the liquid level switch is arranged on the side wall of the box body of the auxiliary liquid chamber of the radiator, there are two liquid level switches, and the liquid level switch is a single float liquid level switch; or

[0016] The liquid level switch is arranged on the bottom plane or the top plane of the box body of the auxiliary liquid chamber of the radiator, and the liquid level switch is a double float liquid level switch.

[0017] Further, the liquid-electric integrated quick connector includes a socket end module and a plug end module, and the socket end module includes a socket body and a plurality of quick connector sockets;

[0018] The plug end module includes a plug body and a plurality of quick connector plugs.

[0019] Furthermore, the socket body is provided with a socket-end water inlet cavity, a socket-end water outlet cavity and a socket-end cable cavity;

[0020] The plug body is provided with a plug end water outlet cavity, a plug end water inlet cavity and a plug end cable cavity.

[0021] Furthermore, the multifunctional frame includes a load-bearing frame, a fixed slideway and a sliding slideway, and the sliding slideway is fixed at the bottom of the load-bearing frame and connected to the fixed slideway.

[0022] Furthermore, the hydraulic-electric integrated quick connector and the water pump are fixed on the load-bearing frame, and a connecting pipeline connecting the hydraulic-electric integrated quick connector and the water pump is arranged in the rectangular beam of the load-bearing frame between the hydraulic-electric integrated quick connector and the water pump, or

[0023] Both ends of the rectangular beam of the load-bearing frame located between the hydraulic-electric integrated quick connector and the water pump are sealed to form a connecting pipeline for connecting the hydraulic-electric integrated quick connector and the water pump.

[0024] Compared with the prior art, the compact cooling device for the converter described in the present invention has the following advantages. The radiator in the compact cooling device for the converter disclosed in the present invention adopts a main liquid chamber, a radiator core and an auxiliary liquid chamber to form an integrated radiator. An exhaust stabilizing liquid pipe is arranged between the main liquid chamber and the auxiliary liquid chamber of the radiator. The gas in the radiator can be discharged into the auxiliary liquid chamber through the pipe to ensure that the radiator is filled with liquid, thereby ensuring the heat dissipation performance of the radiator. That is, it has the heat dissipation function of the radiator in the existing cooling system, and has the exhaust, fluid replenishment, pressure regulation, safety warning and protection functions of the expansion box in the existing cooling system. One component has multiple functions and is fully functional. It realizes the heat dissipation, exhaust, fluid replenishment, pressure regulation, safety warning and protection functions of the cooling system within a limited volume, greatly improving the compactness of the cooling system structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a compact cooling device for a converter disclosed in the present invention;

[0026] Figure 2 This is a structural diagram of a compact cooling device for a converter disclosed in the present invention, which does not include a fan unit;

[0027] Figure 3 It is an axial view of the multifunctional compact radiator disclosed in the present invention;

[0028] Figure 4 It is a cross-sectional view of the multifunctional compact radiator disclosed in the present invention;

[0029] Figure 5 It is a structural diagram of the hydraulic-electric integrated quick connector disclosed in the present invention;

[0030] Figure 6 A cross-sectional view of the socket end module ( Figure 5 Sectional view at AA in the middle);

[0031] Figure 7 A cross-sectional view of the plug end module ( Figure 5 Sectional view at BB in the middle);

[0032] Figure 8 A structural diagram for a multifunctional frame;

[0033] Fig. 9 This is a schematic diagram of the multifunctional structure after it is unfolded.

[0034] In the figure: 1-multifunctional compact radiator; 2-water pump; 3-fan unit; 4-hydraulic-electric integrated quick connector; 5-multifunctional frame; 6-pipeline system; 110-radiator main liquid chamber 1; 120-radiator core; 130-radiator main liquid chamber 2; 140-radiator auxiliary liquid chamber; 150-second water pipe; 160-first water pipe; 141-exhaust stabilizing liquid pipe; 142-two-way pressure regulating valve; 143-visible liquid level meter; 144-liquid level switch; 145-stabilizing liquid plate, 146-adjusting screw plug; 147-adjusting Section gasket; 410-socket end module; 411-socket end water inlet chamber; 412-socket end water outlet chamber; 413-socket end cable chamber; 420-plug end module; 421-plug end water outlet chamber; 422-plug end water inlet chamber; 423-plug end cable chamber; 510-load-bearing support beam; 521-fixed slide; 522-sliding slide; 610-water pump outlet pipeline; 620-water pump replenishing pipe; 630-hydraulic-electric integrated quick connector-water pump inlet pipeline; 640-hydraulic-electric integrated quick connector inlet pipe. DETAILED DESCRIPTION

[0035] like Figure 1 and Figure 2 The figure shows a compact cooling device for a converter disclosed in the present invention, comprising a multifunctional compact radiator 1, a water pump 2, a fan unit 3, a liquid-electric integrated quick connector 4, a multifunctional frame 5 and a pipeline system 6;

[0036] like Figure 3 and Figure 4As shown, the multifunctional compact radiator 1 includes a radiator main liquid chamber 110, a radiator core 120, a radiator main liquid chamber 2 130, a radiator auxiliary liquid chamber 140, a first water pipe 160 and a second water pipe 150. The radiator main liquid chamber 110 and the radiator main liquid chamber 2 130 are arranged at both ends of the radiator core 120 and are connected to the liquid medium channel of the radiator core to form a liquid passage. The radiator auxiliary liquid chamber 140 is arranged at one end of the radiator main liquid chamber 2 130 away from the radiator core 120. The box body of the radiator auxiliary liquid chamber 140 is connected to the chamber body of the radiator main liquid chamber 2 130. The radiator main liquid chamber 110 is provided with the first water pipe 160, and the radiator main liquid chamber 2 130 is provided with the second water pipe 150. In this embodiment, the first water pipe 160 on the radiator main liquid chamber 110 The pipe 160 is a radiator water outlet pipe connected to the hydraulic-electric integrated quick connector, and the second water pipe 150 provided on the radiator main liquid chamber 130 is a radiator water inlet pipe connected to the outlet of the water pump. The water flow direction in the first water pipe and the second water pipe can also be adjusted according to actual needs, that is, the second water pipe 150 provided on the radiator main liquid chamber 130 is a radiator water outlet pipe connected to the inlet of the water pump, and the first water pipe 160 on the radiator main liquid chamber 110 is a radiator water inlet pipe connected to the hydraulic-electric integrated quick connector. At this time, the liquid flow direction in the cooling system changes accordingly, and the radiator auxiliary liquid chamber 140 is provided with an exhaust stabilizing liquid pipe 141 connecting the radiator main liquid chamber 130 and the radiator auxiliary liquid chamber 140. The radiator auxiliary liquid chamber 140 is provided with a two-way pressure regulating valve 142 and a water pump replenishing pipe 620 connected to the water inlet of the water pump 2;

[0037] The fan unit 3 is arranged on one side of the radiator core 120 and blows cooling air into the air cooling channel;

[0038] The multifunctional compact radiator 1, water pump 2, fan unit 3 and liquid-electric integrated quick connector 4 are arranged on the multifunctional frame 5. The multifunctional compact radiator 1, water pump 2 and liquid-electric integrated quick connector 4 are connected through the pipeline system 6. The pipeline system 6 includes a water pump outlet pipeline 610 arranged between the radiator water inlet pipe and the water pump outlet pipe, a liquid-electric integrated quick connector inlet pipe 640 arranged between the radiator outlet pipe and the liquid-electric integrated quick connector 4, and a pipeline 630 arranged between the liquid-electric integrated quick connector 4 and the water pump inlet.

[0039] The cooling device disclosed in the present invention adopts an integrated radiator composed of a main liquid chamber (radiator main liquid chamber one and radiator main liquid chamber two), a radiator core and a radiator auxiliary liquid chamber. It has the heat dissipation function of the radiator in the existing cooling device, and has the exhaust, liquid replenishment, pressure regulation, safety warning and protection functions of the expansion water tank in the existing cooling device. One component has multiple functions and is fully functional.

[0040] Since the main liquid chamber, the radiator core and the radiator auxiliary liquid chamber form an integrated radiator, an exhaust stabilizing liquid pipe is arranged between the second main liquid chamber and the auxiliary liquid chamber of the radiator, through which the gas in the radiator can be discharged into the auxiliary liquid chamber, ensuring that the radiator is filled with liquid, thereby ensuring the heat dissipation performance of the radiator;

[0041] A two-way pressure regulating valve is arranged at a position near the top plane on the upper part of the auxiliary liquid chamber. When the pressure in the auxiliary liquid chamber is higher than a certain set value, the two-way pressure regulating valve opens to discharge part of the gas to relieve the pressure. When the pressure in the auxiliary liquid chamber is lower than a certain set value, the two-way pressure regulating valve opens to suck in part of the gas to increase the pressure, thereby adjusting the pressure of various parts in the cooling system to ensure that the water pump inlet pressure is within a certain range and the reliability of the system operation is ensured. A water pump replenishing pipe connected to the water pump inlet is arranged at a position near the bottom plane on the bottom or side wall of the auxiliary liquid chamber. When the system is running, once the system lacks water or the pressure changes, the liquid in the auxiliary liquid chamber of the radiator can be replenished to the pump through the replenishing pipe to prevent cavitation due to low pump inlet pressure and ensure the reliability of the water pump operation.

[0042] Furthermore, one end of the exhaust stabilizing liquid pipe 141 is arranged at a position as high as possible on the upper part of the radiator main liquid chamber 130, preferably, it is arranged at the highest position in the cavity of the radiator main liquid chamber 130, and the other end is located at the lower part of the radiator auxiliary liquid chamber 140 to facilitate the discharge of the gas in the radiator main liquid chamber 130 into the radiator auxiliary liquid chamber. In this embodiment, the exhaust stabilizing liquid pipe is an L-shaped through-hole pipe.

[0043] Furthermore, a flow hole adjusting device for adjusting the size of the flow hole of the exhaust stabilizing liquid pipe 141 is provided on the case of the radiator auxiliary liquid chamber 140. In the present embodiment, the flow hole adjusting device comprises an adjusting gasket 147 and an adjusting screw plug 146. The adjusting screw plug passes through the case of the radiator auxiliary liquid chamber and is screwed into the exhaust stabilizing liquid pipe. By adjusting the thickness of the gasket, the blocking depth of the screw end of the screw plug in the flow hole of the exhaust stabilizing liquid pipe can be adjusted to adjust the size of the flow hole. By adjusting the size of the flow hole, the liquid pressure loss between the main liquid chamber and the auxiliary liquid chamber of the radiator is adjusted, thereby adjusting and stabilizing the pressure of each part of the cooling system, which is convenient for setting the control threshold of the cooling system.

[0044] Furthermore, a liquid stabilizing plate 145 is provided in the auxiliary liquid chamber 140 of the radiator, and a plurality of through holes are provided on the liquid stabilizing plate. Specifically, the liquid stabilizing plate is arranged in the inner cavity of the auxiliary liquid chamber of the radiator and is connected to the inner wall of the auxiliary liquid chamber box, and a plurality of through holes are provided on the liquid stabilizing plate. Preferably, the height of the liquid stabilizing plate is arranged between the liquid level at room temperature (liquid level at 20°C) and the working liquid level (liquid level at working temperature) of the auxiliary liquid chamber of the radiator. When the train runs through a curve, the liquid in the auxiliary liquid chamber is transmitted to the liquid in the auxiliary liquid chamber due to the action of centrifugal force or vibration, or the flow between the main liquid chamber and the auxiliary liquid chamber is large, the liquid level in the auxiliary liquid chamber will tilt or fluctuate, and in severe cases, it will cause the liquid level sensor to send out an erroneous low liquid level alarm message. The setting of the liquid stabilizing plate can damp the fluctuation of the liquid level and stabilize the liquid level.

[0045] Furthermore, a visual liquid level meter 143 is provided on the casing of the radiator auxiliary liquid chamber 140, and one or more liquid level switches 144 are provided in the radiator auxiliary liquid chamber 140. The liquid level switch may be a single float liquid level switch, and the liquid level switch has two, and the liquid level switch is arranged on the side wall of the casing of the radiator auxiliary liquid chamber. One liquid level switch is used for low liquid level alarm and ultra-low liquid level cutoff. The liquid level switch may also be arranged on the bottom plane or top plane of the casing of the radiator auxiliary liquid chamber, and the liquid level switch is a double float liquid level switch, the upper float provides a signal low liquid level alarm, and the lower float provides an ultra-low liquid level cutoff signal. The liquid level switch is arranged on the casing of the auxiliary liquid chamber, and can provide low liquid level alarm and ultra-low liquid level cutoff signals when the liquid level does not meet the set requirements, thereby providing safety warning and protection functions for the cooling system.

[0046] Furthermore, if Figure 5 As shown, the liquid-electric integrated quick connector includes a socket end module 410 and a plug end module 420. The socket end module 410 includes a socket body and a plurality of quick connector sockets; the plug end module 420 includes a plug body and a plurality of quick connector plugs. Figure 6 As shown, the socket body is provided with a socket end water inlet cavity 411, a socket end water outlet cavity 412 and a socket end cable cavity 413; Figure 7 As shown, the plug body is provided with a plug-end water outlet cavity 421, a plug-end water inlet cavity 422 and a plug-end cable cavity 423.

[0047] Furthermore, if Figure 8 and Fig. 9 As shown, the multifunctional frame 5 includes a load-bearing frame, a fixed slide 521 and a sliding slide 522, wherein the sliding slide is fixed to the bottom of the load-bearing frame and connected to the fixed slide by fasteners. The load-bearing frame is welded by a plurality of load-bearing support beams (rectangular beams) 510, and the fixed slide 521 is fixed to the vehicle body or the converter cabinet by fasteners. Preferably, the sliding slide 522 is a multi-stage retractable slide and is fixed to the load-bearing frame by fasteners.

[0048] Furthermore, if Figure 8 As shown, the hydraulic-electric integrated quick connector 4 and the water pump 2 are fixed on the load-bearing frame, the load-bearing support beam 510 is a rectangular beam, and the connecting pipeline connecting the hydraulic-electric integrated quick connector and the water pump is placed in the rectangular beam of the load-bearing frame between the hydraulic-electric integrated quick connector and the water pump. Alternatively, sealing plates are provided at both ends of the rectangular beam of the load-bearing frame between the hydraulic-electric integrated quick connector and the water pump so that the rectangular beam is sealed to form a connecting pipeline for connecting the hydraulic-electric integrated quick connector and the water pump.

[0049] The liquid-electric integrated quick connector of the present invention includes a quick connection socket and a plug arranged on the socket end module and the plug end module, which correspond to each other, and constitute a quick connection of the water circuit and a quick electrical connection between the cooling device and the converter. The socket end is fixed on the cooling device, and the plug end is fixed on the vehicle body or the converter cabinet.

[0050] Under normal working conditions, the socket and plug of the cooling device hydraulic-electric integrated quick connector are plugged together for sealing connection; Fig. 9 As shown, when the cooling device components need to be maintained or repaired, the cooling device (as shown by the label C in the figure) is pulled, and the pullable slide and the fixed slide are displaced, and the socket module fixed on the cooling device and the plug fixed on the vehicle body or the converter cabinet are displaced accordingly, and the socket and the plug are separated; when the maintenance or repair is completed, the cooling device is pushed to the normal working position, and the socket and the plug are sealed and connected again. The arrangement of the hydraulic-electric integrated quick connector and the sliding pair proposed by the present invention makes the cooling device connection more convenient and faster, and the disassembly and assembly of the components more convenient when the space is limited, which also greatly improves the maintainability.

[0051] The flow direction of the liquid in the cooling device of the present invention can be seen in Figure 2 , Figure 3 and Figure 4 .

[0052] The coolant flows out from the water outlet of the water pump, enters the main liquid chamber 2 of the radiator through the pipe 610 between the water pump outlet and the radiator inlet, exchanges heat with the cooling air while flowing through the radiator core, and the cooled low-temperature coolant enters the main liquid chamber 1 of the radiator, passes through the pipe between the radiator and the liquid-electric integrated quick connector, enters the water inlet chamber 411 of the socket end module of the liquid-electric integrated quick connector, passes through the quick connector, enters the water outlet chamber 421 of the plug end module, and then enters the inverter; the high-temperature coolant flowing out of the inverter enters the water inlet chamber 422 of the plug end module, passes through the quick connector, enters the water outlet chamber 412 of the socket end module, enters the pipe between the liquid-electric integrated quick connector and the water pump inlet arranged in the load-bearing frame, and then enters the water pump. The coolant pressurized by the water pump flows out of the water pump for the next cycle.

[0053] At the same time, a small amount of the coolant entering the radiator's main liquid chamber 2 enters the auxiliary liquid chamber through the L-shaped exhaust stabilizing pipe arranged between the main liquid chamber 2 and the auxiliary liquid chamber, and enters the water pump inlet from the water pump replenishing pipe.

[0054] The compact cooling device for the converter of the present invention eliminates the expansion water tank in the existing cooling device, eliminates the connecting pipeline between the cooling device radiator and the expansion water tank, and simplifies the overall structure of the cooling device; the multifunctional frame of the present invention, part of the inner cavity of the load-bearing beam also serves as the pipeline between the outlet of the liquid-electric integrated quick connector and the inlet of the water pump. These designs greatly improve the compactness of the cooling device structure and provide a new technology for reducing the volume and weight of the cooling device.

[0055] The present invention comprises a multifunctional frame composed of a load-bearing frame and a sliding pair, and is an installation carrier for all components of the cooling device. The components of the cooling device are integrated into a whole through the load-bearing frame. At the same time, the fixed slideway and the multi-stage retractable slideway of the sliding pair can be relatively displaced but cannot be separated. The multi-stage retractable slideway is fixed to the load-bearing frame, and the fixed slideway is fixed to the vehicle body or the converter cabinet. In this way, the installation of the cooling device and the vehicle body or the converter cabinet is realized through the sliding pair.

[0056] After the cooling device is installed on the vehicle body or converter cabinet through the sliding pair, the pins can be used to prevent the relative displacement between the multi-stage retractable slideway and the fixed slideway of the sliding pair; when the cooling device components need to be maintained or repaired, the pins can be removed to pull out the cooling device. This design makes it easier to disassemble and assemble the cooling device components when space is limited, greatly improving maintainability.

[0057] The multifunctional frame 5 of the present invention includes a load-bearing frame, a fixed slide 521 and a sliding slide 522, which can realize the relative sliding of the cooling device load-bearing frame and the car body or converter cabinet. At the same time, the liquid-electric integrated quick connector of the present invention includes a one-to-one correspondence between the quick connection socket and the plug on the socket end module and the plug end module, which constitutes a quick connection and electrical quick connection of the water circuit between the cooling device and the converter. This structure solves the existing converter water cooling device, in which the load-bearing frame only provides a support structure for the installation of various components of the cooling device, and the load-bearing frame and the car body or converter cabinet are usually connected by bolts. The above structure has a single function and low space utilization; during installation and disassembly, due to space limitations, the far-end connection bolts between the cooling device load-bearing frame and the car body or converter cabinet are difficult to disassemble and install, which is not convenient for use and maintenance.

[0058] In the existing converter water cooling device, the cooling device and the converter are connected together through flanges of pipelines at both ends. When the space is limited, it is difficult to install fasteners, and it is not convenient to use a torque wrench, and the reliability of the bolt connection cannot be ensured, which poses a safety hazard.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compact cooling device for a converter, characterized in that: It includes a multifunctional compact radiator, a water pump, a fan unit, a hydraulic-electric integrated quick connector, a multifunctional frame and a piping system; The multifunctional compact radiator comprises a radiator main liquid chamber 1, a radiator core, a radiator main liquid chamber 2, a radiator auxiliary liquid chamber, a first water pipe and a second water pipe, the radiator main liquid chamber 1 and the radiator main liquid chamber 2 are arranged at two ends of the radiator core, the radiator auxiliary liquid chamber is arranged at one end of the radiator main liquid chamber 2 away from the radiator core, the radiator main liquid chamber 1 is provided with the first water pipe, the radiator main liquid chamber 2 is provided with the second water pipe, the radiator auxiliary liquid chamber is provided with an exhaust stabilizing liquid pipe connecting the radiator main liquid chamber 2 and the radiator auxiliary liquid chamber, and the radiator auxiliary liquid chamber is provided with a two-way pressure regulating valve and a water pump replenishing pipe connected with the water inlet of the water pump; One end of the exhaust stabilizing liquid pipe is arranged at the upper part of the second main liquid chamber of the radiator, and the other end is located at the lower part of the auxiliary liquid chamber of the radiator; A flow hole adjustment device for adjusting the size of the flow hole of the exhaust stabilizing liquid pipe is provided on the box body of the auxiliary liquid chamber of the radiator; The fan unit is arranged on one side of the radiator core; The multifunctional compact radiator, water pump, fan unit and liquid-electric integrated quick connector are arranged on the multifunctional frame, and the multifunctional compact radiator, water pump and liquid-electric integrated quick connector are connected through the pipeline system; The multifunctional frame includes a load-bearing frame, a fixed slideway and a sliding slideway, wherein the sliding slideway is fixed to the bottom of the load-bearing frame and connected to the fixed slideway; The hydraulic-electric integrated quick connector and the water pump are fixed on the load-bearing frame, and a connecting pipeline connecting the hydraulic-electric integrated quick connector and the water pump is arranged in a rectangular beam of the load-bearing frame between the hydraulic-electric integrated quick connector and the water pump, or Both ends of the rectangular beam of the load-bearing frame located between the hydraulic-electric integrated quick connector and the water pump are sealed to form a connecting pipeline for connecting the hydraulic-electric integrated quick connector and the water pump.

2. The compact cooling device for a converter according to claim 1, characterized in that: A liquid stabilizing plate is arranged in the auxiliary liquid chamber of the radiator, and a plurality of through holes are arranged on the liquid stabilizing plate.

3. The compact cooling device for a converter according to claim 2, characterized in that: A visual liquid level meter is provided on the box body of the auxiliary liquid chamber of the radiator, and one or more liquid level switches are provided in the auxiliary liquid chamber of the radiator.

4. The compact cooling device for a converter according to claim 3, characterized in that: The liquid level switch is arranged on the side wall of the box body of the auxiliary liquid chamber of the radiator, and there are two liquid level switches, and the liquid level switch is a single float liquid level switch; or The liquid level switch is arranged on the bottom plane or the top plane of the box body of the auxiliary liquid chamber of the radiator, and the liquid level switch is a double float liquid level switch.

5. The compact cooling device for a converter according to claim 1, characterized in that: The liquid-electric integrated quick connector includes a socket end module and a plug end module, and the socket end module includes a socket body and a plurality of quick connector sockets; The plug end module includes a plug body and a plurality of quick connector plugs.

6. The compact cooling device for a converter according to claim 5, characterized in that: The socket body is provided with a socket-end water inlet cavity, a socket-end water outlet cavity and a socket-end cable cavity; The plug body is provided with a plug end water outlet cavity, a plug end water inlet cavity and a plug end cable cavity.

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