CN111800994B - High-voltage frequency converter with water cooling structure and working method thereof - Google Patents
High-voltage frequency converter with water cooling structure and working method thereof Download PDFInfo
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- CN111800994B CN111800994B CN202010752767.5A CN202010752767A CN111800994B CN 111800994 B CN111800994 B CN 111800994B CN 202010752767 A CN202010752767 A CN 202010752767A CN 111800994 B CN111800994 B CN 111800994B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20263—Heat dissipaters releasing heat from coolant
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a high-voltage frequency converter with a water cooling structure and a working method thereof, wherein the high-voltage frequency converter comprises a shell, a circuit board is symmetrically arranged on the inner wall of the shell, the water cooling structure is arranged in the shell and close to the circuit board, the water cooling structure comprises a water feeding pipe, a water tank, a refrigerating assembly, a water return pipe plate type, a heat exchanger, a snakelike water cooling pipe, a water feeding pump, a first connecting pipe and a three-way joint, the snakelike water cooling pipe is arranged in the shell, the circuit board is in contact with the snakelike water cooling pipe, the water inlet of the snakelike water cooling pipe is connected with the water feeding pump fixed at the bottom of the water tank through the water feeding pipe, and the three-way joint is arranged at the water outlet of the snakelike water cooling pipe. The invention has novel structure and ingenious conception, not only can effectively reduce the working temperature of the circuit board and prolong the service life of the circuit board, but also can lead the cooling liquid returning to the water tank to return to the normal temperature through the heat exchange of the plate heat exchanger, thereby being convenient for the recycling of the cooling liquid.
Description
Technical Field
The invention relates to the technical field of high-voltage frequency converters, in particular to a high-voltage frequency converter with a water cooling structure and a working method thereof.
Background
The frequency converter is an electric energy control device which converts a power frequency power supply into another frequency by utilizing the on-off action of a power semiconductor device. With the rapid development of modern power electronic technology and microelectronic technology, high-voltage high-power variable-frequency speed regulation devices are continuously mature, and the high-voltage problem which is difficult to solve originally is solved well in recent years by device series connection or unit series connection. The high-voltage high-power variable-frequency speed regulation device is widely applied to various fans, water pumps, compressors, rolling mills and the like in industries such as large-scale mining production plants, petrochemical industry, municipal water supply, metallurgical steel, electric power energy and the like.
The high-voltage inverter can produce a large amount of heats at the in-process of work, if not carry out timely heat dissipation, the high-voltage inverter can work in the environment of high temperature for a long time, easily causes the high-voltage inverter to burn out, influences the life of high-voltage inverter. Therefore, it is necessary to design a high voltage inverter with a water cooling structure and an operating method thereof.
Disclosure of Invention
Aiming at the situation, the invention provides the high-voltage frequency converter with the water cooling structure and the working method thereof to overcome the defects of the prior art, and the high-voltage frequency converter is novel in structure and ingenious in conception, so that the FTU can be simply patrolled and maintained on the ground, the patrolling and operation and maintenance efficiency is improved, and the safety of workers is ensured.
In order to achieve the purpose, the invention provides the following technical scheme: a high-voltage frequency converter with a water cooling structure and a working method thereof comprise a shell, wherein circuit boards are symmetrically arranged on the inner wall of the shell, and the water cooling structure is arranged in the shell close to the circuit boards;
the water-cooling structure includes water-feeding pipe, water tank, refrigeration subassembly, wet return, plate heat exchanger, snakelike water-cooling tube, upper water pump, first connecting pipe and three way connection, snakelike water-cooling tube installs in the inside of casing, and circuit board and snakelike water-cooling tube contact, the water inlet of snakelike water-cooling tube passes through the water-feeding pipe and is connected with the upper water pump of fixing in the water tank bottom, three way connection is installed to snakelike water-cooling tube's delivery port, three way connection passes through first connecting pipe and is connected with plate heat exchanger's water inlet, the outer wall both sides at the casing are installed to plate heat exchanger symmetry, plate heat exchanger's delivery port passes through the wet return and is connected with top one side of water tank, refrigeration subassembly is installed to one side of water tank.
Preferably, the refrigeration subassembly includes location case, semiconductor cooler, second connecting pipe, circulating pump, inlet tube, circulating pipe and play water shower nozzle, the location case is fixed in one side of water tank, the circulating pump is installed to inside one side of location case, the inlet tube with the inside intercommunication of water tank is installed to the water inlet of circulating pump, the delivery port of circulating pump passes through the second connecting pipe and is connected with semiconductor cooler one end, semiconductor cooler's the other end is fixed with the circulating pipe with the inside intercommunication of water tank, install out the water shower nozzle on the circulating pipe.
Preferably, temperature sensor is installed on the top of inlet tube, the PLC controller is installed to one side inner wall of location case, the input of temperature sensor electric connection PLC controller, the output electric connection semiconductor cooler and the circulating pump of PLC controller.
Preferably, the slide rail is installed to the inner wall equidistance of casing, sliding connection has the draw runner on the slide rail, the top one end of slide rail is rotated and is connected with first tight nut in top, the positioning seat is installed to one side of draw runner, be fixed with the circuit board on the positioning seat.
Preferably, the bottom of the slide bar is equidistantly provided with rollers, and the rollers are connected inside a roller groove formed in the slide rail in a rolling manner.
Preferably, the bottom of the circuit board is fixed with a heat conducting fin, and a heat conducting silica gel layer is filled between the heat conducting fin and the snakelike water-cooling tube.
Preferably, the bottom of the plate heat exchanger is clamped and fixed with a cooling fan.
Preferably, the back of the shell is symmetrically provided with sliding grooves, the sliding grooves are connected with sliding blocks in a sliding mode, two adjacent sliding blocks are connected through a positioning plate, and second jacking nuts penetrating through the sliding blocks are connected to the positioning plate in a rotating mode.
A working method of a high-voltage frequency converter with a water cooling structure comprises the following specific operation steps:
the method comprises the following steps: the water feeding pump works, the cooling liquid in the water tank is guided into the inner circulation of the snakelike water-cooling pipe through the water feeding pipe, heat generated in the working process of the circuit board is transferred to the upper outer surface of the snakelike water-cooling pipe through the heat conducting fins and the heat conducting silica gel layer to exchange heat with the cooling liquid in the snakelike water-cooling pipe, the cooling liquid after heat exchange enters the plate type heat exchanger through the first connecting pipe to exchange heat, and the cooling liquid returns to the water tank again through the water returning pipe after being cooled;
step two: the temperature of the cooling liquid is collected through a temperature sensor arranged on the water inlet pipe, the collected signal value is transmitted to the PLC, and when the numerical value processed by the PLC is larger than the preset value of the PLC, the PLC controls the refrigeration assembly to work;
step three: the circulating pump works, the cooling liquid is extracted through the water inlet pipe and enters the inside of the semiconductor refrigerator through the second connecting pipe to perform refrigeration work, the refrigerated cooling liquid flows back to the inside of the water tank through the circulating pipe, and the circulating pump and the semiconductor refrigerator continuously work until the temperature value detected by the temperature sensor is smaller than or equal to the preset value of the PLC.
The beneficial effects of the invention are as follows:
1. the water feeding pump works, the cooling liquid in the water tank is guided into the inner circulation of the snakelike water cooling pipe through the water feeding pipe, the heat generated in the working process of the circuit board is transferred to the upper outer surface of the snakelike water cooling pipe through the heat conducting fins and the heat conducting silica gel layer to exchange heat with the cooling liquid in the water tank, the cooling liquid after heat exchange enters the plate type heat exchanger through the first connecting pipe to exchange heat, and the cooling liquid returns to the water tank through the water return pipe after being cooled, so that the working temperature of the circuit board can be effectively reduced, the service life of the circuit board is prolonged, the cooling liquid returning to the water tank can return to normal temperature through the heat exchange of the plate type heat exchanger, and the recycling of the cooling liquid is facilitated;
2. the circulating pump works, temperature acquisition of cooling liquid is carried out through a temperature sensor arranged on a water inlet pipe, the cooling liquid is pumped through the water inlet pipe and enters the inside of the semiconductor refrigerator through a second connecting pipe to carry out refrigeration work, then the refrigerated cooling liquid flows back to the inside of the water tank through the circulating pipe, the circulating pump and the semiconductor refrigerator continuously work until a temperature value detected by the temperature sensor is smaller than or equal to a preset value of the PLC, and therefore rapid cooling of the cooling liquid is conveniently achieved, and the water cooling effect is improved;
3. the slide bar is inserted and fixed on the slide rail, the first jacking nut is used for fixing, and then the circuit board is fixed on the positioning seat on one side of the slide bar, so that the circuit board is convenient to install and disassemble quickly, and the circuit board is convenient to maintain.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic cross-sectional plan view of the interior of the housing of the present invention;
FIG. 3 is a schematic plan view of the water-cooling structure of the present invention;
FIG. 4 is a schematic plan view of the refrigeration assembly of the present invention;
FIG. 5 is a schematic view of a back plane structure of the housing of the present invention;
reference numbers in the figures: 1. a housing; 2. a water feeding pipe; 3. a water tank; 4. a refrigeration assembly; 5. a water return pipe; 6. a plate heat exchanger; 7. a serpentine water-cooled tube; 8. a slide rail; 9. a roller; 10. a slide bar; 11. a first puller nut; 12. positioning seats; 13. a circuit board; 14. a heat conductive sheet; 15. a heat conductive silica gel layer; 16. feeding a water pump; 17. a first connecting pipe; 18. a three-way joint; 19. a positioning box; 20. a semiconductor refrigerator; 21. a second connecting pipe; 22. a circulation pump; 23. a water inlet pipe; 24. a temperature sensor; 25. a PLC controller; 26. a circulation pipe; 27. a water outlet nozzle; 28. a chute; 29. a second puller nut; 30. a slider; 31. and (7) positioning the plate.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings 1 to 5.
As shown in fig. 1 to 5, the present invention provides the following technical solutions: a high-voltage frequency converter with a water cooling structure and a working method thereof comprise a shell 1, wherein circuit boards 13 are symmetrically arranged on the inner wall of the shell 1, and the water cooling structure is arranged in the shell 1 close to the circuit boards 13;
the water-cooling structure includes the water feeding pipe 2, water tank 3, refrigeration subassembly 4, wet return 5, plate heat exchanger 6, snakelike water-cooling tube 7, water feeding pump 16, first connecting pipe 17 and three way connection 18, snakelike water-cooling tube 7 is installed in the inside of casing 1, and circuit board 13 and the contact of snakelike water-cooling tube 7, the water inlet of snakelike water-cooling tube 7 passes through water feeding pipe 2 and is connected with the water feeding pump 16 of fixing in the 3 bottoms of water tank, three way connection 18 is installed to snakelike water-cooling tube 7's delivery port, three way connection 18 is connected with plate heat exchanger 6's water inlet through first connecting pipe 17, 6 symmetries of plate heat exchanger are installed in the outer wall both sides of casing 1, plate heat exchanger 6's delivery port passes through wet return 5 and is connected with top one side of water tank 3, refrigeration subassembly 4 is installed to one side of water tank 3.
Slide rails 8 are installed on the inner wall of the shell 1 at equal intervals, a slide bar 10 is connected to the slide rails 8 in a sliding mode, one end of the top of each slide rail 8 is connected with a first jacking nut 11 in a rotating mode, a positioning seat 12 is installed on one side of each slide bar 10, and a circuit board 13 is fixed on each positioning seat 12.
The bottom of the slide bar 10 is equidistantly provided with rollers 9, and the rollers 9 are connected inside the wheel grooves formed in the slide rails 8 in a rolling manner, so that the friction force between the slide bar 10 and the rollers 9 is reduced.
The bottom of the circuit board 13 is fixed with a heat conducting fin 14, and a heat conducting silica gel layer 15 is filled between the heat conducting fin 14 and the snakelike water-cooling tube 7, so that heat transfer is facilitated.
The bottom joint of plate heat exchanger 6 is fixed with radiator fan, is convenient for blow to plate heat exchanger 6, promotes plate heat exchanger 6's heat exchange efficiency.
The back symmetry of casing 1 has seted up spout 28, the inside sliding connection of spout 28 has slider 30, and connect through locating plate 31 between two adjacent sliders 30, locating plate 31 top spin has connect the second of passing slider 30 and pushes up nut 29, the second of the pine of soon pushes up nut 29, make slider 30 can be at the inside motion of slider 30, be convenient for adjust suitable position back with locating plate 31, push up nut 29 and fix a position using the second, the convenience is installed the different positions with the converter, promote the convenience of use.
A working method of a high-voltage frequency converter with a water cooling structure comprises the following specific operation steps:
the method comprises the following steps: the water feeding pump 16 works to guide the cooling liquid in the water tank 3 into the inner part of the snakelike water cooling pipe 7 through the water feeding pipe 2 for circulation, heat generated in the working process of the circuit board 13 is transferred to the outer surface of the snakelike water cooling pipe 7 through the heat conducting fins 14 and the heat conducting silica gel layer 15 to exchange heat with the cooling liquid in the snakelike water cooling pipe 7, the cooling liquid after heat exchange enters the plate type heat exchanger 6 through the first connecting pipe 17 for heat exchange, and the cooling liquid is cooled and then returns to the water tank 3 through the water returning pipe 5;
step two: the temperature of the cooling liquid is collected through a temperature sensor 24 arranged on a water inlet pipe 23, the collected signal value is transmitted to a PLC (programmable logic controller) 25, and when the value processed by the PLC 25 is larger than the preset value of the PLC 25, the PLC 25 controls the refrigeration assembly 4 to work;
step three: the circulation pump 22 operates to draw the cooling liquid through the water inlet pipe 23 and enter the inside of the semiconductor refrigerator 20 through the second connection pipe 21 to perform a cooling operation, and then the cooled cooling liquid is returned to the inside of the water tank 3 through the circulation pipe 26, and the circulation pump 22 and the semiconductor refrigerator 20 continuously operate until the temperature value detected by the temperature sensor 24 is less than or equal to the preset value of the PLC controller 25.
When the cooling water circulation device is used, the water feeding pump 16 works, cooling liquid in the water tank 3 is guided into the serpentine water cooling pipe 7 through the water feeding pipe 2 to circulate inside, heat generated in the working process of the circuit board 13 is transferred to the upper outer surface of the serpentine water cooling pipe 7 through the heat conducting fins 14 and the heat conducting silica gel layer 15 to exchange heat with the cooling liquid inside, the cooling liquid after heat exchange enters the plate type heat exchanger 6 through the first connecting pipe 17 to exchange heat, and the cooling liquid returns to the water tank 3 through the water return pipe 5 after being cooled, so that the working temperature of the circuit board 13 can be effectively reduced, the service life of the circuit board 13 is prolonged, the cooling liquid returning to the water tank 3 can exchange heat through the plate type heat exchanger 6, and the cooling liquid can return to the normal temperature, and the recycling of the cooling liquid is convenient;
the circulating pump 22 works, the temperature of the cooling liquid is collected through the temperature sensor 24 arranged on the water inlet pipe 23, the cooling liquid is pumped through the water inlet pipe 23 and enters the inside of the semiconductor refrigerator 20 through the second connecting pipe 21 to be refrigerated, then the refrigerated cooling liquid flows back to the inside of the water tank 3 through the circulating pipe 26, the circulating pump 22 and the semiconductor refrigerator 20 continuously work until the temperature value detected by the temperature sensor 24 is less than or equal to the preset value of the PLC 25, the rapid cooling of the cooling liquid is convenient to realize, and the water cooling effect is improved;
the slide bar 10 is inserted and fixed on the slide rail 8, and is fixed by using the first puller nut 11, and then the circuit board 13 is fixed on the positioning seat 12 on one side of the slide bar 10, so that the circuit board 13 is convenient to rapidly install and disassemble, and the circuit board 13 is convenient to maintain and repair.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-voltage inverter with water-cooling structure, includes casing (1), its characterized in that: the circuit boards (13) are symmetrically arranged on the inner wall of the shell (1), and a water cooling structure is arranged in the shell (1) close to the circuit boards (13);
the water cooling structure comprises a water feeding pipe (2), a water tank (3), a refrigerating assembly (4), a water return pipe (5), a plate type heat exchanger (6), a snake-shaped water cooling pipe (7), a water feeding pump (16), a first connecting pipe (17) and a three-way joint (18), wherein the snake-shaped water cooling pipe (7) is installed inside the shell (1), a circuit board (13) is in contact with the snake-shaped water cooling pipe (7), a water inlet of the snake-shaped water cooling pipe (7) is connected with the water feeding pump (16) fixed at the bottom of the water tank (3) through the water feeding pipe (2), the three-way joint (18) is installed at a water outlet of the snake-shaped water cooling pipe (7), the three-way joint (18) is connected with a water inlet of the plate type heat exchanger (6) through the first connecting pipe (17), the plate type heat exchanger (6) is symmetrically installed on two sides of the outer wall of the shell (1), a water outlet of the plate type heat exchanger (6) is connected with one side of the top of the water tank (3) through the water return pipe (5), and the refrigerating assembly (4) is installed on one side of the water tank (3);
refrigeration subassembly (4) are including location case (19), semiconductor cooler (20), second connecting pipe (21), circulating pump (22), inlet tube (23), circulating pipe (26) and play water shower nozzle (27), one side in water tank (3) is fixed in location case (19), circulating pump (22) are installed to inside one side of location case (19), inlet tube (23) with water tank (3) inside intercommunication are installed to the water inlet of circulating pump (22), the delivery port of circulating pump (22) is connected with semiconductor cooler (20) one end through second connecting pipe (21), the other end of semiconductor cooler (20) is fixed with circulating pipe (26) with water tank (3) inside intercommunication, install out water shower nozzle (27) on circulating pipe (26).
2. The high-voltage frequency converter with the water cooling structure as claimed in claim 1, wherein: temperature sensor (24) are installed on the top of inlet tube (23), PLC controller (25) are installed to one side inner wall of location case (19), the input of temperature sensor (24) electric connection PLC controller (25), the output electric connection semiconductor cooler (20) and circulating pump (22) of PLC controller (25).
3. The high-voltage frequency converter with the water cooling structure as claimed in claim 1, wherein: slide rail (8) are installed to the inner wall equidistance of casing (1), sliding connection has draw runner (10) on slide rail (8), the top one end of slide rail (8) is rotated and is connected with first tight nut in top (11), positioning seat (12) are installed to one side of draw runner (10), be fixed with circuit board (13) on positioning seat (12).
4. The high-voltage frequency converter with the water cooling structure as claimed in claim 3, wherein: the bottom of the slide bar (10) is equidistantly provided with rollers (9), and the rollers (9) are connected inside wheel grooves formed in the slide rail (8) in a rolling manner.
5. The high-voltage frequency converter with the water cooling structure as claimed in claim 1, wherein: the heat-conducting plate is characterized in that a heat-conducting fin (14) is fixed at the bottom of the circuit board (13), and a heat-conducting silica gel layer (15) is filled between the heat-conducting fin (14) and the snake-shaped water-cooling tube (7).
6. The high-voltage inverter with the water-cooling structure of claim 1, wherein: and a cooling fan is clamped and fixed at the bottom of the plate heat exchanger (6).
7. The high-voltage frequency converter with the water cooling structure as claimed in claim 1, wherein: the back of the shell (1) is symmetrically provided with sliding grooves (28), the sliding grooves (28) are connected with sliding blocks (30) in a sliding mode, two adjacent sliding blocks (30) are connected through positioning plates (31), and second jacking nuts (29) penetrating through the sliding blocks (30) are connected to the positioning plates (31) in a rotating mode.
8. The working method of the high-voltage frequency converter with the water cooling structure is characterized in that: the device comprises the following specific operation steps:
the method comprises the following steps: the water feeding pump (16) works, cooling liquid in the water tank (3) is guided into the inner circulation of the snakelike water-cooling pipe (7) through the water feeding pipe (2), heat generated in the working process of the circuit board (13) is transferred to the upper outer surface of the snakelike water-cooling pipe (7) through the heat conducting fins (14) and the heat conducting silica gel layer (15) to exchange heat with the cooling liquid in the water tank, the cooling liquid after heat exchange enters the plate type heat exchanger (6) through the first connecting pipe (17) to exchange heat, and the cooling liquid is cooled and then returns to the water tank (3) through the water returning pipe (5);
step two: the temperature of cooling liquid is collected through a temperature sensor (24) arranged on a water inlet pipe (23), a collected signal value is transmitted to a PLC (programmable logic controller) (25), and when a numerical value processed by the PLC (25) is larger than a preset value of the PLC (25), the PLC (25) controls a refrigerating assembly (4) to work;
step three: the circulating pump (22) works, the cooling liquid is pumped through the water inlet pipe (23) and enters the inside of the semiconductor refrigerator (20) through the second connecting pipe (21) to perform refrigeration work, the refrigerated cooling liquid is returned to the inside of the water tank (3) through the circulating pipe (26), and the circulating pump (22) and the semiconductor refrigerator (20) continuously work until the temperature value detected by the temperature sensor (24) is smaller than or equal to the preset value of the PLC (25).
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| CN202010752767.5A CN111800994B (en) | 2020-07-30 | 2020-07-30 | High-voltage frequency converter with water cooling structure and working method thereof |
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| CN202010752767.5A CN111800994B (en) | 2020-07-30 | 2020-07-30 | High-voltage frequency converter with water cooling structure and working method thereof |
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| CN111800994B true CN111800994B (en) | 2022-12-16 |
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| CN112289554B (en) * | 2020-10-22 | 2023-07-25 | 马鞍山豪远电子有限公司 | Transformer device with cooling function |
| CN112923638A (en) * | 2021-03-01 | 2021-06-08 | 河北邦普新能源科技有限公司 | Laboratory high accuracy cold water machine |
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| CN210374720U (en) * | 2019-05-31 | 2020-04-21 | 无锡格林沃科技有限公司 | High-efficiency radiator |
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| US20060048520A1 (en) * | 2004-09-09 | 2006-03-09 | U-Long Co., Ltd. | Cooling/heating pad |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725332A (en) * | 2017-09-27 | 2018-02-23 | 安徽瑞田机械有限公司 | A kind of water cooling plant of air compressor |
| CN109152282A (en) * | 2018-08-02 | 2019-01-04 | 安徽斗转星移信息科技有限公司 | A kind of server rack with radiator structure |
| CN210374720U (en) * | 2019-05-31 | 2020-04-21 | 无锡格林沃科技有限公司 | High-efficiency radiator |
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| CN111800994A (en) | 2020-10-20 |
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