Frequency converter water cooling device

Abstract

The utility model belongs to the technical field of frequency converter heat dissipation equipment, and particularly relates to a frequency converter water cooling device which comprises a fixing plate, a cold water pipe fixedly installed at the front end of the fixing plate, a liquid outlet pipe fixedly connected to the right end of the cold water pipe, a fixing pipe head fixedly connected to the circumferential face of the cold water pipe, and a water pump fixedly installed in a water tank. The liquid discharging end of the water pump is fixedly connected with the liquid inlet pipe, the liquid outlet pipe extends leftwards into the water tank and is fixedly connected with the water tank, and the water tank is communicated with the liquid outlet pipe. According to the cooling water pipe, circulating cooling water can be filtered, so that the circulating cooling water entering the cooling water pipe along the liquid inlet pipe is cleaner, dirt in water is prevented from being attached to the inner wall of the cooling water pipe, the cooling water pipe is prevented from being damaged, and the service life of the cooling water pipe is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of frequency converter heat dissipation equipment, and particularly relates to a water-cooling device for a frequency converter. Background Art

[0002] The frequency converter is one of the main components of modern wind power plants. The frequency converter is a power control device that uses the on-off action of power semiconductor devices to convert the power frequency power supply into electrical energy of another frequency. For wind power plants, the frequency converter is mainly placed inside the main nacelle. There are many operating machines inside the main nacelle, which will generate a large amount of heat, easily causing problems such as a rapid decline in the activity of the silicone grease in the IGBT package inside the frequency converter, an increase in thermal resistance, and poor heat exchange, affecting the normal use of the frequency converter. Therefore, the frequency converter is usually provided with a cooling system for heat dissipation.

[0003] In the prior art, the cooling system of the frequency converter generally adopts a water-cooling method. During use, the circulating cooling water will circulate along the cold water pipe to achieve the function of cooling and heat dissipation. However, there will be dirt in the water in the water tank. When the circulating water enters the cold water pipe along the liquid inlet pipe for use, the dirt will adhere to the inner wall of the cold water pipe, and it is easy to cause damage to the cold water pipe after using for a period of time, thus affecting the service life of the cold water pipe. Summary of the Invention

[0004] The purpose of the utility model is to provide a water-cooling device for a frequency converter, which can filter the circulating cooling water, make the circulating cooling water entering the inside of the cold water pipe along the liquid inlet pipe cleaner, thereby preventing the dirt in the water from adhering to the inner wall of the cooling water pipe, and further preventing the cold water pipe from being damaged and prolonging the service life of the cold water pipe.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a water-cooling device for a frequency converter, including a fixing plate, a cold water pipe is fixedly installed at the front end of the fixing plate, a liquid outlet pipe is fixedly connected to the right end of the cold water pipe, a fixing pipe head is fixedly connected to the circumferential surface of the cold water pipe, a filter cartridge is arranged inside the fixing pipe head, a convex platform is fixedly connected to the right end of the filter cartridge, and the convex platform and the filter cartridge are of an integral structure. A threaded connection cylinder is fixedly connected to the right end of the convex platform. An annular support plate is fixedly connected inside the fixing pipe head, and the annular support plate is used to support the convex platform. The right end of the fixing pipe head is detachably connected to a water pipe connector through a connection component. A threaded installation groove is arranged inside the water pipe connector. The threaded connection cylinder is located in the threaded installation groove and is threadedly connected with the threaded installation groove. The right end of the water pipe connector is fixedly connected to a liquid inlet pipe. The liquid inlet pipe is located above the liquid outlet pipe. A water tank is fixedly connected to the rear end of the fixing plate. A water pump is fixedly installed inside the water tank. The liquid discharge end of the water pump is fixedly connected to the liquid inlet pipe. The liquid outlet pipe extends leftward into the water tank and is fixedly connected to the water tank, and the water tank is in communication with the liquid outlet pipe.

[0006] Optionally, the connecting component includes a first ear plate, a second ear plate, a mounting hole, a threaded rod and a nut. A plurality of first ear plates are fixedly connected to the circumferential surface of the fixed pipe head, and threaded rods are fixedly connected to the right ends of the plurality of first ear plates. A plurality of second ear plates are fixedly connected to the circumferential surface of the water pipe connector, and mounting holes are formed in the right end faces of the plurality of second ear plates. The plurality of threaded rods are respectively connected to the plurality of second ear plates through the plurality of mounting holes, and nuts are threadedly connected to the circumferential surfaces of the plurality of threaded rods.

[0007] Optionally, a liquid adding hole is formed in the upper end surface of the water tank.

[0008] Optionally, a drain pipe and a valve are fixedly connected to the left end of the water tank, and the drain pipe is fixedly connected to the valve.

[0009] Optionally, the cold water pipe is serpentine.

[0010] Optionally, the fixing plate is made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Under the action of the filter cartridge, the present utility model can filter the circulating cooling water entering the cold water pipe along the liquid inlet pipe, making the circulating cooling water entering the cold water pipe cleaner, thereby preventing dirt in the water from adhering to the inner wall of the cooling water pipe, further preventing the cold water pipe from being damaged, and extending the service life of the cold water pipe.

[0013] 2. Under the mutual cooperation of the connecting component, the threaded mounting groove and the threaded connecting cylinder, the present utility model facilitates the disassembly of the filter cartridge for replacement, and ensures the filtering effect of the present utility model by regularly replacing the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0015] Figure 1 It is a front view partial sectional three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 It is the present utility model Figure 1 The enlarged structure schematic diagram at A in;

[0017] Figure 3 It is the three-dimensional structure schematic diagram after the water pipe connector and the filter cartridge in 1 of the present utility model are disassembled;

[0018] Figure 4 is a schematic enlarged structure view of part B in the present utility model Figure 3 ;

[0019] Figure 5 is a perspective structure view of a rear partial section of the present utility model

[0020] In the figure: 1, fixing plate; 2, cold water pipe; 3, liquid outlet pipe; 4, liquid inlet pipe; 5, water tank; 6, water pump; 7, fixed pipe head; 8, filter cartridge; 9, annular support plate; 10, threaded connection cylinder; 11, water pipe connector; 12, first ear plate; 13, second ear plate; 14, threaded rod; 15, nut; 16, boss; 17, mounting hole; 18, threaded mounting groove Specific embodiments

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element

[0023] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model

[0024] Now, for the embodiments of the present utility model Figures 1-5An inverter water cooling device is described. An inverter water cooling device includes a fixing plate 1. A cold water pipe 2 is fixedly installed at the front end of the fixing plate 1. The right end of the cold water pipe 2 is fixedly connected to a liquid outlet pipe 3. A fixing pipe head 7 is fixedly connected to the circumferential surface of the cold water pipe 2. A filter cartridge 8 is arranged inside the fixing pipe head 7. The right end of the filter cartridge 8 is fixedly connected to a boss 16, and the boss 16 and the filter cartridge 8 are of an integral structure. The right end of the boss 16 is fixedly connected to a threaded connection cylinder 10. An annular support plate 9 is fixedly connected inside the fixing pipe head 7, and the annular support plate 9 is used to support the boss 16. The right end of the fixing pipe head 7 is detachably connected to a water pipe connector 11 through a connection component. A threaded installation groove 18 is arranged inside the water pipe connector 11. The threaded connection cylinder 10 is located inside the threaded installation groove 18 and is threadedly connected with the threaded installation groove 18. The right end of the water pipe connector 11 is fixedly connected to a liquid inlet pipe 4. The liquid inlet pipe 4 is located above the liquid outlet pipe 3. The rear end of the fixing plate 1 is fixedly connected to a water tank 5. A water pump 6 is fixedly installed inside the water tank 5. The liquid discharge end of the water pump 6 is fixedly connected to the liquid inlet pipe 4. The liquid outlet pipe 3 extends leftward into the water tank 5 and is fixedly connected to the water tank 5, and the water tank 5 is in communication with the liquid outlet pipe 3.

[0025] Compared with the prior art, in the inverter water cooling device provided by the present utility model, the circulating cooling water entering the inside of the cold water pipe 2 along the liquid inlet pipe 4 can be filtered under the action of the filter cartridge 8, so that the circulating cooling water entering the inside of the cold water pipe 2 is cleaner, thereby preventing dirt in the water from adhering to the inner wall of the cooling water pipe, and further preventing the cold water pipe 2 from being damaged and prolonging the service life of the cold water pipe 2.

[0026] In another embodiment of the present utility model, please refer to Figures 1 to 4 The connection component includes a first ear plate 12, a second ear plate 13, a mounting hole 17, a threaded rod 14 and a nut 15. A plurality of first ear plates 12 are fixedly connected to the circumferential surface of the fixing pipe head 7. The right ends of the plurality of first ear plates 12 are all fixedly connected to threaded rods 14. A plurality of second ear plates 13 are fixedly connected to the circumferential surface of the water pipe connector 11. Mounting holes 17 are formed in the right end faces of the plurality of second ear plates 13. The plurality of threaded rods 14 are respectively connected to the plurality of second ear plates 13 through the plurality of mounting holes 17. Nuts 15 are threadedly connected to the circumferential surfaces of the plurality of threaded rods 14. During operation, when the nut 15 is rotated to disengage it from the threaded rod 14, the fixing pipe head 7 and the water pipe connector 11 can be disassembled. After disassembly, when the filter cartridge 8 is rotated to separate the threaded connection cylinder 10 from the threaded installation groove 18, the disassembly of the filter cartridge 8 can be completed, thereby facilitating replacement.

[0027] In another embodiment of the present utility model, please refer to Figure 5, a liquid adding hole is provided on the upper end surface of the water tank 5. By providing the liquid adding hole, during operation, it is convenient to add circulating cooling water into the water tank 5. After adding, use a sealing plug to seal the liquid adding hole, thereby preventing dust and impurities from falling into the water tank 5.

[0028] In another embodiment of the present invention, refer to Figure 5 , a drain pipe and a valve are fixedly connected to the left end of the water tank 5, and the drain pipe is fixedly connected to the valve. During operation, open the valve so that the circulating cooling water inside the water tank 5 is discharged along the drain pipe, thereby facilitating the regular replacement of the circulating cooling water inside the water tank 5.

[0029] In another embodiment of the present invention, please refer to Figure 1 and Figure 3 , the cold water pipe 2 is serpentine. During operation, it can make the circulating cooling water flow inside the cold water pipe 2 for a long time, and increase the contact area between the cold water pipe 2 and the frequency converter, thereby effectively cooling and dissipating heat from the frequency converter.

[0030] In another embodiment of the present invention, please refer to Figure 1 and Figure 3 , the fixing plate 1 is made of stainless steel, having good corrosion resistance, high strength and high hardness, thereby extending the service life of the fixing plate 1.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A frequency converter water cooling device, comprising a fixing plate (1), characterized in that: A cold water pipe (2) is fixedly installed at the front end of the fixed plate (1), the right end of the cold water pipe (2) is fixedly connected to a liquid outlet pipe (3), the circumferential surface of the cold water pipe (2) is fixedly connected to a fixed pipe head (7), a filter cartridge (8) is arranged inside the fixed pipe head (7), the right end of the filter cartridge (8) is fixedly connected to a boss (16), and the boss (16) and the filter cartridge (8) are an integrated structure, the right end of the boss (16) is fixedly connected to a threaded connection tube (10), the inside of the fixed pipe head (7) is fixedly connected to an annular support plate (9), and the annular support plate (9) is used to support the boss (16), and the right end of the fixed pipe head (7) is detachably connected to a water pipe connector via a connecting assembly (11), a threaded mounting groove (18) is provided inside the water pipe connector (11), the threaded connecting tube (10) is located in the threaded mounting groove (18) and is threadedly connected to the threaded mounting groove (18), the right end of the water pipe connector (11) is fixedly connected to a liquid inlet pipe (4), the liquid inlet pipe (4) is located at the upper end of the liquid outlet pipe (3), the rear end of the fixed plate (1) is fixedly connected to a water tank (5), a water pump (6) is fixedly installed inside the water tank (5), the discharge end of the water pump (6) is fixedly connected to the liquid inlet pipe (4), the liquid outlet pipe (3) extends to the left into the water tank (5) and is fixedly connected to the water tank (5), and the water tank (5) and the liquid outlet pipe (3) are communicated with each other.

2. The inverter water cooling device according to claim 1, characterized in that: The connection assembly comprises a first ear plate (12), a second ear plate (13), a mounting hole (17), a threaded rod (14) and a nut (15); the circumferential surface of the fixed pipe head (7) is fixedly connected to a plurality of first ear plates (12); the right ends of the plurality of first ear plates (12) are fixedly connected to a threaded rod (14); the circumferential surface of the water pipe connector (11) is fixedly connected to a plurality of second ear plates (13); the right end surfaces of the plurality of second ear plates (13) are provided with mounting holes (17); the plurality of threaded rods (14) are respectively connected to the plurality of second ear plates (13) through the plurality of mounting holes (17); and the circumferential surfaces of the plurality of threaded rods (14) are threadedly connected to nuts (15).

3. The inverter water cooling device according to claim 1, characterized in that: The upper end surface of the water tank (5) is provided with a liquid filling hole.

4. The inverter water cooling device according to claim 1, characterized in that: The left end of the water tank (5) is fixedly connected with a drain pipe and a valve, and the drain pipe is fixedly connected to the valve.

5. The inverter water cooling device according to claim 1, characterized in that: The cold water pipe (2) is in a serpentine shape.

6. The inverter water cooling device according to claim 1, characterized in that: The fixing plate (1) is made of stainless steel.

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