A water cooling system for frequency converter

Abstract

The utility model provides a frequency converter water-cooling heat dissipation system, including a frequency converter housing, the frequency converter housing including a shell and a heat dissipation component to be dissipated arranged inside the shell, heat dissipation components are arranged above and below the heat dissipation component, the heat dissipation component includes a mounting frame detachably mounted in the shell and a frame elastically connected to the mounting frame, the frame is provided with heat dissipation fins for heat dissipation, a water tank is arranged in the frame, the water tank is provided with a first heat dissipation pipe located above and a second heat dissipation pipe located below the first heat dissipation pipe, the first heat dissipation pipe and the second heat dissipation pipe are jointly connected with a heat sink for directly fitting the heat dissipation component to be dissipated. The frequency converter water-cooling heat dissipation system provided by the utility model can solve the problem of inconsistent cooling and heat dissipation effects that may occur in traditional water-cooling heat dissipation devices by setting two heat dissipation pipes with opposite water flow directions, and also improves the heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of inverter heat dissipation, in particular to an inverter water cooling heat dissipation system. Background Art

[0002] The inverter contains a large number of power semiconductor devices. These devices will have conduction losses and switching losses during the switching process. These losses are released in the form of heat energy. If this heat is not removed in time, it will cause the internal temperature of the inverter to rise, affecting its normal operation and life. Therefore, it is often necessary to add a heat dissipation device. Traditional heat dissipation devices often use air cooling systems. With the development of technology, water cooling systems are also gradually becoming popular.

[0003] Water cooling systems are usually more efficient than air cooling systems because the specific heat capacity of water is much greater than that of air, and it can absorb more heat without much temperature increase. This means that water cooling systems can transfer more heat under smaller temperature differences. Water cooling systems often use water pipes to transport coolant to remove heat through direct or indirect contact. However, in this process, the direction of water flow remains consistent. At the same time point, the components located upstream of the water flow direction first contact the low-temperature coolant, causing the cooling heat to rise. The coolant that the components located downstream of the water flow direction contact is already the heated coolant. Simply put, the traditional water cooling system has a worse cooling effect on the components downstream of the water flow direction than the upstream ones, and there is a problem of inconsistent cooling levels.

[0004] In view of this, a water cooling system for a frequency converter is proposed. Utility Model Content

[0005] The utility model aims to solve the problem that the heat dissipation effect of the inverter water-cooling heat dissipation system on the components located downstream in the water flow direction is poorer than that on the components located above the water flow direction, and provides an inverter water-cooling heat dissipation system.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a water-cooled heat dissipation system for an inverter, comprising an inverter case, the inverter case comprising a shell and a component to be cooled arranged inside the shell, heat dissipation components are arranged above and below the component to be cooled, the heat dissipation components comprise a mounting frame detachably mounted in the shell and a frame elastically connected to the mounting frame, the frame is provided with heat dissipation fins for heat dissipation, a water tank is arranged in the frame, the water tank is provided with a first heat dissipation pipe located above and a second heat dissipation pipe located below the first heat dissipation pipe, the first heat dissipation pipe and the second heat dissipation pipe are commonly connected to a heat sink for directly fitting the component to be cooled.

[0007] Furthermore, the water tank is symmetrically provided with a first water inlet and a first drain outlet, the first water inlet and the first drain outlet are respectively connected to the two ends of the first heat dissipation pipe, a second drain outlet is provided at the bottom of the first water inlet, a second water inlet is provided at the bottom of the first drain outlet, the second water inlet and the second drain outlet are respectively connected to the two ends of the second heat dissipation pipe.

[0008] Furthermore, a first water pump is provided on the first radiating tube, and a second water pump is provided on the second radiating tube. The water flow directions of the first radiating tube and the second radiating tube are opposite.

[0009] Furthermore, a partition is arranged in the water tank, and the partition is arranged transversely to separate the water flowing into the first heat dissipation pipe and the water flowing into the second heat dissipation pipe.

[0010] Furthermore, the water tank is provided with two water exchange ports located above and below the water tank respectively at one end close to the mounting frame, and both water exchange ports are threadedly connected with sealing covers, and the frame is correspondingly provided with two slots for the water pipes to enter when changing water.

[0011] Furthermore, a plurality of springs are provided at the top and bottom of the frame, one end of the spring is fixed to the frame, and the other end is fixedly connected to the mounting frame, and the spring is used to mitigate the vibration of the frame to prevent the first heat dissipation tube or the second heat dissipation tube from falling off.

[0012] Furthermore, a fan for improving heat dissipation effect is provided on the heat dissipation fins.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The inverter water cooling and heat dissipation system provided by the utility model solves the problem of inconsistent cooling and heat dissipation effects at different positions of the traditional water cooling device by setting two heat dissipation pipes with opposite water flow directions, and at the same time greatly improves the heat dissipation efficiency;

[0015] 2. The inverter water cooling system provided by the utility model is provided with two heat dissipation pipes, so that when one of the heat dissipation pipes has a problem, the other heat dissipation pipe can still dissipate heat, thereby solving the problem that the heat dissipation component may be damaged due to excessive temperature if the traditional single heat dissipation pipe heat dissipation device is damaged and not discovered in time;

[0016] 3. The inverter water cooling system provided by the utility model enables the coolant in the water tank to be replaced after long-term use through the setting of the water exchange port, making the later cleaning and maintenance of the device more convenient and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0019] Figure 2 The figure is a three-dimensional structural schematic diagram of a heat dissipation component according to an embodiment of the utility model.

[0020] Figure 3 This is an exploded schematic diagram of a mounting frame and a frame according to an embodiment of the utility model.

[0021] Figure 4 This is a diagram showing the connection positions of a water tank and a heat dissipation pipe according to an embodiment of the present utility model.

[0022] Figure 5 It is a cross-sectional schematic diagram of a water tank according to an embodiment of the utility model.

[0023] In the figure: 1. inverter case, 11. shell, 12. component to be cooled, 2. cooling component, 21. mounting frame, 22. frame, 221. spring, 222. slot, 23. first cooling pipe, 231. first water inlet, 232. first drain outlet, 233. first water pump, 24. second cooling pipe, 241. second water inlet, 242. second drain outlet, 243. second water pump, 25. water tank, 251. water exchange port, 252. sealing cover, 253. partition, 26. cooling fins, 27. fan, 28. heat sink. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 .

[0026] The utility model provides a water-cooled heat dissipation system for a frequency converter, comprising a frequency converter case 1, the frequency converter case 1 comprising a shell 11 and a component to be cooled 12 arranged inside the shell 11, heat dissipation components 2 are arranged above and below the component to be cooled 12, the heat dissipation components 2 comprise a mounting frame 21 detachably mounted inside the shell 11 and a frame 22 elastically connected to the mounting frame 21, heat dissipation fins 26 for heat dissipation are arranged on the frame 22, a fan 27 for improving the heat dissipation effect is arranged on the heat dissipation fins 26, a water tank 25 is arranged inside the frame 22, a first heat dissipation pipe 23 located above and a second heat dissipation pipe 24 located below the first heat dissipation pipe 23 are arranged on the water tank 25, and the first heat dissipation pipe 23 and the second heat dissipation pipe 24 are commonly connected to a heat dissipation fin 28 for directly fitting the component to be cooled 12.

[0027] like Figure 1 As shown, a heat dissipation component 2 is provided above and below the heat dissipation component 12, so that when one of the heat dissipation components 2 is damaged and not discovered in time during use of the device, the normal operation of the device can be ensured by heat dissipation of the other heat dissipation component 2.

[0028] like Figure 3 As shown, the water tank 25 is symmetrically provided with a first water inlet 231 and a first drain port 232, which are respectively connected to the two ends of the first radiating pipe 23, a second drain port 242 is provided at the bottom of the first water inlet 231, and a second water inlet 241 is provided at the bottom of the first drain port 232, the second water inlet 241 and the second drain port 242 are respectively connected to the two ends of the second radiating pipe 24, and in addition, as shown in FIG. Figure 4 As shown, a first water pump 233 is disposed on the first heat dissipation tube 23 , and a second water pump 243 is disposed on the second heat dissipation tube 24 . The water flow directions of the first heat dissipation tube 23 and the second heat dissipation tube 24 are opposite.

[0029] That is to say, the first water pump 233 is used to control the first heat dissipation tube 23, and the second water pump 243 is used to control the second heat dissipation tube 24. In addition, since a partition 253 is provided in the water tank 25, the partition 253 is arranged horizontally, so that the water entering the first heat dissipation tube 23 and the second heat dissipation tube 24 can be separated, that is to say, the two heat dissipation tubes work independently of each other.

[0030] It should be noted that, in the specific setting, the partition 253 of the water tank 25 should be made of a waterproof and heat-insulating material such as epoxy resin or polytetrafluoroethylene, or it can be operated by applying a silicone coating, so as to ensure that the temperature of the coolant between the upper and lower parts of the water tank 25 does not affect each other.

[0031] like Figure 4As shown, one end of the water tank 25 close to the mounting frame 21 is provided with two water exchange ports 251 respectively located above and below the water tank 25, and the two water exchange ports 251 are both threadedly connected with sealing covers 252, and the frame 22 is correspondingly provided with two slots 222 for the water pipes to pass through when changing water. Minerals and other impurities in the water may cause corrosion of metal parts inside the water cooling system, reduce the heat exchange efficiency, and may block the water flow channel, and the calcium and magnesium ions in hard water are easy to form scale on the heat exchange surface, which will reduce the heat exchange efficiency and reduce the heat dissipation capacity of the system. Therefore, it is necessary to regularly replace the water in the water tank 25. The arrangement of the water exchange port 251 and the sealing cover 252 makes the operation of changing water more convenient, but it is necessary to take anti-leakage measures at the water exchange port 251 and the sealing cover 252.

[0032] Secondly, a plurality of springs 221 are provided at the top and bottom of the frame 22, one end of the spring 221 is fixed to the frame 22, and the other end is fixedly connected to the mounting frame 21, and the spring 221 is used to mitigate the vibration of the frame 22 to prevent the first heat dissipation tube 23 or the second heat dissipation tube 24 from falling off.

[0033] It should be noted that, by providing two heat pipes with opposite water flow directions in the heat dissipation component 2, the component located downstream in the water flow direction of one heat pipe can be located upstream in the water flow direction of the other heat pipe, so that the heat dissipation effects of multiple places of the heat dissipation component 12 can be basically consistent. At the same time, by providing two heat pipes, the heat dissipation effect of the device is enhanced, and when one of the heat pipes is damaged, the other can continue to work, thereby preventing the heat dissipation component 12 from being damaged due to excessive temperature.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A frequency converter water cooling system, comprising a frequency converter housing (1), characterized in that: The inverter housing (1) comprises a housing (11) and a heat dissipation component (12) arranged inside the housing (11); heat dissipation components (2) are arranged above and below the heat dissipation component (12); the heat dissipation component (2) comprises a mounting frame (21) detachably mounted inside the housing (11) and a frame (22) elastically connected to the mounting frame (21); heat dissipation fins (26) for heat dissipation are arranged on the frame (22); a water tank (25) is arranged inside the frame (22); a first heat dissipation pipe (23) located above and a second heat dissipation pipe (24) located below the first heat dissipation pipe (23) are arranged on the water tank (25); the first heat dissipation pipe (23) and the second heat dissipation pipe (24) are commonly connected to a heat dissipation fin (28) for directly attaching to the heat dissipation component (12).

2. The inverter water cooling system according to claim 1, characterized in that: The water tank (25) is symmetrically provided with a first water inlet (231) and a first drain outlet (232); the first water inlet (231) and the first drain outlet (232) are respectively connected to the two ends of the first radiating pipe (23); a second drain outlet (242) is provided at the bottom of the first water inlet (231); a second water inlet (241) is provided at the bottom of the first drain outlet (232); the second water inlet (241) and the second drain outlet (242) are respectively connected to the two ends of the second radiating pipe (24).

3. The inverter water cooling system according to claim 2, characterized in that: The first radiating tube (23) is provided with a first water pump (233), and the second radiating tube (24) is provided with a second water pump (243); the water flow directions of the first radiating tube (23) and the second radiating tube (24) are opposite.

4. The inverter water cooling system according to claim 3, characterized in that: A partition (253) is arranged in the water tank (25), and the partition (253) is arranged transversely and is used to separate water flowing into the first heat dissipation pipe (23) and the second heat dissipation pipe (24).

5. The inverter water cooling system according to claim 4, characterized in that: The water tank (25) is provided with two water exchange ports (251) located above and below the water tank (25) at one end close to the mounting frame (21), and the two water exchange ports (251) are both threadedly connected with sealing covers (252). The frame (22) is correspondingly provided with two slots (222) for the water pipe to pass through when changing water.

6. The inverter water cooling system according to claim 1, characterized in that: A plurality of springs (221) are arranged at the top and bottom of the frame (22); one end of the spring (221) is fixed to the frame (22), and the other end is fixedly connected to the mounting frame (21); the spring (221) is used to mitigate the vibration of the frame (22) to prevent the first heat dissipation tube (23) or the second heat dissipation tube (24) from falling off.

7. The inverter water cooling system according to claim 1, characterized in that: The heat dissipation fins (26) are provided with a fan (27) for improving the heat dissipation effect.

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