CN114812092B - A automatic switching device in cooling water route for motor test - Google Patents
A automatic switching device in cooling water route for motor test Download PDFInfo
- Publication number
- CN114812092B CN114812092B CN202210449956.4A CN202210449956A CN114812092B CN 114812092 B CN114812092 B CN 114812092B CN 202210449956 A CN202210449956 A CN 202210449956A CN 114812092 B CN114812092 B CN 114812092B
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- electromagnetic valve
- port
- water pipe
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- water
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- 239000000498 cooling water Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The automatic switching device of the cooling waterway for motor test comprises a circulating waterway device and a control device, wherein the circulating waterway device comprises a high-temperature water tank, a low-temperature water tank, a first electromagnetic valve, a second electromagnetic valve, a first water pipe, a second water pipe, a third water pipe, a fourth water pipe, a fifth water pipe, a sixth water pipe and a seventh water pipe, a water outlet of the high-temperature water tank is connected with a P port of the first electromagnetic valve through the fourth water pipe, and an A port of the second electromagnetic valve is connected with a water return port of the high-temperature water tank through the third water pipe; the control device comprises a motor controller, an electromagnetic valve driver, a first low-voltage power supply and a second low-voltage power supply; according to the invention, the motor controller outputs different signals to the electromagnetic valve driver according to different motor rotating speeds, and the electromagnetic valve driver carries out corresponding driving control on the first electromagnetic valve and the second electromagnetic valve according to the acquired signals, so that the linkage of the motor working condition and the cooling waterway is realized, and the rapid automatic switching of the high-temperature and low-temperature cooling water of the motor is realized.
Description
Technical Field
The invention relates to the field of physics, in particular to a cooling water path automatic switching device for motor tests.
Background
In the motor test process, high-temperature water or low-temperature cooling water is required to be introduced into the motor according to the test working condition, and the cooling water switching device in the prior art cannot realize high-frequency switching due to the fact that the motor test working condition is complex and the requirements on the test environment are very severe, the switching speed is low, the test time is long, and the degree of automation is low. The technical proposal in the prior art is as follows:
scheme one: and (3) manually switching, wherein a tester observes the working condition of the motor and operates the temperature of the cooling equipment. Scheme one disadvantage: the manual switching operation is complex, errors are easy to occur, and the high requirements on the temperature rising and reducing speed of the cooling equipment are met.
Scheme II: the cooling device is automatically switched. Scheme two has the disadvantage: the cooling device cannot be linked with the working condition of the motor, the intelligent degree is not high enough, and the high-frequency switching cannot be realized.
Disclosure of Invention
The invention aims to provide an automatic switching device of a cooling water channel for motor test, which aims to solve the technical problems that the cooling water switching device in the prior art cannot realize high-frequency switching, has low switching speed, long test time and low automation degree.
The invention relates to a cooling water path automatic switching device for motor tests, which comprises a circulating water path device and a control device, wherein the circulating water path device comprises a high-temperature water tank, a low-temperature water tank, a first electromagnetic valve, a second electromagnetic valve, a first water pipe, a second water pipe, a third water pipe, a fourth water pipe, a fifth water pipe, a sixth water pipe and a seventh water pipe, and the first electromagnetic valve and the second electromagnetic valve are respectively provided with a P port, an A port, a T port and a B port; the first electromagnetic valve and the second electromagnetic valve are in a closed state, the port P is communicated with the port A, and the port T is communicated with the port B; the first electromagnetic valve and the second electromagnetic valve are in an open state, the P port is communicated with the B port, and the T port is communicated with the A port; the water outlet of the high-temperature water tank is connected with the P port of the first electromagnetic valve through a fourth water pipe, and the A port of the second electromagnetic valve is connected with the water return port of the high-temperature water tank through a third water pipe; the water outlet of the low-temperature water tank is connected with the T port of the first electromagnetic valve through a seventh water pipe, the B port of the first electromagnetic valve is connected with the T port of the second electromagnetic valve through a fifth water pipe, and the B port of the second electromagnetic valve is connected with the water return port of the low-temperature water tank through a sixth water pipe;
the control device comprises a motor controller, an electromagnetic valve driver, a first low-voltage power supply and a second low-voltage power supply; the control end of the test motor is connected with the input and output end of the motor controller, the motor controller is connected with the input end of the electromagnetic valve driver through the first wire harness, the electromagnetic valve driver is connected with the control end of the first electromagnetic valve through the second wire harness, and the electromagnetic valve driver is connected with the control end of the second electromagnetic valve through the third wire harness.
Further, the motor controller also comprises an upper computer, and the upper computer is connected with the input and output ends of the motor controller.
Further, the motor controller also comprises a first low-voltage power supply and a second low-voltage power supply, wherein the first low-voltage power supply is connected with the power end of the motor controller, and the second low-voltage power supply is connected with the power end of the electromagnetic valve driver.
Compared with the prior art, the invention has positive and obvious effects. According to the motor controller in the automatic switching device for the cooling water channel for the motor test, different signals are output to the electromagnetic valve driver according to different motor rotating speeds, the electromagnetic valve driver carries out corresponding driving control on the first electromagnetic valve and the second electromagnetic valve according to the acquired signals, so that linkage of motor working conditions and the cooling water channel is realized, rapid and automatic switching of high-temperature and low-temperature cooling water of the motor is realized, switching can be completed within 1s, manual participation is not needed, the automation degree is high, the high-frequency switching requirement is met, continuous switching is carried out for 5 ten thousand times, the motor test time is shortened, and the test cost is reduced.
Drawings
Fig. 1 is a schematic view of an automatic switching device for cooling water paths for motor test according to the present invention.
Detailed Description
The present invention is further described below with reference to the drawings and examples, but the present invention is not limited to the examples, and all the similar structures and similar variations using the present invention should be included in the protection scope of the present invention. The use of the directions of up, down, front, back, left, right, etc. in the present invention is only for convenience of description, and is not a limitation of the technical scheme of the present invention.
Example 1
As shown in fig. 1, the automatic switching device of a cooling water path for motor test comprises a circulating water path device and a control device, wherein the circulating water path device comprises a high-temperature water tank 17, a low-temperature water tank 16, a first electromagnetic valve 7, a second electromagnetic valve 8, a first water pipe 9, a second water pipe 10, a third water pipe 11, a fourth water pipe 12, a fifth water pipe 13, a sixth water pipe 14 and a seventh water pipe 15, the high-temperature water tank 17 and the low-temperature water tank 16 can respectively maintain the temperature in the water tank to be always in a high-temperature state and a low-temperature state, and the first electromagnetic valve 7 and the second electromagnetic valve 8 are respectively provided with a port P, a port a, a port T and a port B; the first electromagnetic valve 7 and the second electromagnetic valve 8 are in a closed state, the port P is communicated with the port A, and the port T is communicated with the port B; the first electromagnetic valve 7 and the second electromagnetic valve 8 are in an open state, the port P is communicated with the port B, and the port T is communicated with the port A; the water outlet of the high-temperature water tank 17 is connected with the P port of the first electromagnetic valve 7 through the fourth water pipe 12, the A port of the first electromagnetic valve 7 is connected with the water inlet of the test motor 6 through the first water pipe 9, the water outlet of the test motor 6 is connected with the P port of the second electromagnetic valve 8 through the second water pipe 10, and the A port of the second electromagnetic valve 8 is connected with the water return port of the high-temperature water tank 17 through the third water pipe 11; the water outlet of the 16 low-temperature water tank is connected with the T port of the first electromagnetic valve 7 through a seventh water pipe 15, the B port of the first electromagnetic valve 7 is connected with the T port of the second electromagnetic valve 8 through a fifth water pipe 13, and the B port of the second electromagnetic valve 8 is connected with the backwater port of the 16 low-temperature water tank through a sixth water pipe 14;
the control device comprises a motor controller 1, an electromagnetic valve driver 2, a first low-voltage power supply 3 and a second low-voltage power supply 4; the control end of the test motor 6 is connected with the input and output ends of the motor controller 1, the motor controller 1 is connected with the input end of the electromagnetic valve driver 2 through the first wire harness 18, the electromagnetic valve driver 2 is connected with the control end of the first electromagnetic valve 7 through the second wire harness 19, and the electromagnetic valve driver 2 is connected with the control end of the second electromagnetic valve 8 through the third wire harness 20.
Further, the motor controller also comprises an upper computer 5, and the upper computer 5 is connected with the input and output ends of the motor controller 1.
Further, the motor controller also comprises a first low-voltage power supply 3 and a second low-voltage power supply 4, wherein the first low-voltage power supply 3 is connected with the power end of the motor controller 1, and the second low-voltage power supply 4 is connected with the power end of the electromagnetic valve driver 2.
Specifically, the high-temperature water tank 17, the low-temperature water tank 16, the first electromagnetic valve 7, the second electromagnetic valve 8, the motor controller 1, the upper computer 5, the electromagnetic valve driver 2, the first low-voltage power supply 3, the second low-voltage power supply 4 and the like in this embodiment all adopt the known schemes in the prior art, which are known to those skilled in the art, and are not described herein again.
The working principle of the embodiment is as follows:
the control circuit includes a motor rotation speed acquisition circuit and a control circuit of the solenoid valve driver 2.
The rotating speed acquisition circuit is an input module of the system. The rotation speed of the test motor 6 is detected by the motor controller 1 and then displayed on the upper computer 5 in real time. The motor controller 1 detects the rotation speed of the test motor 6 and outputs a high-level or low-level signal corresponding to the rotation speed. The first low voltage power supply 3 supplies the motor controller 1 with the low voltage power required for its operation, and the first low voltage power supply 3 is selectable in accordance with the condition of the motor controller 1.
The control circuit of the solenoid valve driver 2 is a control module of the system. The solenoid valve driver 2 controls the opening and closing of the first solenoid valve 7 and the second solenoid valve 8 according to the received high-level and low-level signals. The low-voltage power supply 4 supplies the solenoid valve driver 2 with the low-voltage power required for its operation, and the low-voltage power supply 4 can be shaped according to the condition of the solenoid valve driver 2.
When the electromagnetic valve driver 2 receives the high-level signal, the first electromagnetic valve 7 and the second electromagnetic valve 8 are controlled to be in a closed state, at the moment, the port P is communicated with the port A, the port T is communicated with the port B, and the water flow path is as follows: the water outlet of the low-temperature water tank 16, the T port of the first electromagnetic valve 7, the B port of the first electromagnetic valve 7, the T port of the second electromagnetic valve 8, the B port of the second electromagnetic valve 8, the water return port of the low-temperature water tank 16, the water outlet of the high-temperature water tank 17, the P port of the first electromagnetic valve 7, the A port of the first electromagnetic valve 7, the water inlet of the test motor 6, the water outlet of the test motor 6, the P port of the second electromagnetic valve 8, the A port of the second electromagnetic valve 8 and the water return port of the high-temperature water tank 17.
When the electromagnetic valve driver 2 receives the low-level signal, the first electromagnetic valve 7 and the second electromagnetic valve 8 are controlled to be in an open state, at the moment, the P port is communicated with the B port, the T port is communicated with the A port, and the water flow path is as follows: the water outlet of the low-temperature water tank 16, the T port of the first electromagnetic valve 7, the A port of the first electromagnetic valve 7, the water inlet of the test motor 6, the water outlet of the test motor 6, the P port of the second electromagnetic valve 8, the B port of the second electromagnetic valve 8, the water return port of the low-temperature water tank 16, the water outlet of the high-temperature water tank 17, the P port of the first electromagnetic valve 7, the B port of the first electromagnetic valve 7, the T port of the second electromagnetic valve 8, the A port of the second electromagnetic valve 8 and the water return port of the high-temperature water tank 17. The first electromagnetic valve 7 and the second electromagnetic valve 8 are simultaneously switched from the closed state to the open state, so that the test motor 6 can be automatically switched from high-temperature water to low-temperature water, and further the automatic switching of a cooling water path for motor test is realized.
According to the motor controller 1 in the automatic switching device for the cooling water channel for the motor test, different signals are output to the electromagnetic valve driver 2 according to different motor rotating speeds, the electromagnetic valve driver 2 carries out corresponding driving control on the first electromagnetic valve 7 and the second electromagnetic valve 8 according to the acquired signals, so that the linkage of the motor working condition and the cooling water channel is realized, the rapid automatic switching of the high-temperature and low-temperature cooling water of the motor is realized, the switching can be completed within 1s, the manual participation is not needed, the degree of automation is high, the high-frequency switching requirement is met, the switching can be continuously carried out for 5 ten thousands of times, the motor test time is shortened, and the test cost is reduced.
Claims (3)
1. A automatic switching device in cooling water route for motor test, its characterized in that: the water circulation device comprises a high-temperature water tank (17), a low-temperature water tank (16), a first electromagnetic valve (7), a second electromagnetic valve (8), a first water pipe (9), a second water pipe (10), a third water pipe (11), a fourth water pipe (12), a fifth water pipe (13), a sixth water pipe (14) and a seventh water pipe (15), wherein the first electromagnetic valve (7) and the second electromagnetic valve (8) are respectively provided with a P port, an A port, a T port and a B port; the first electromagnetic valve (7) and the second electromagnetic valve (8) are in a closed state, the port P is communicated with the port A, and the port T is communicated with the port B; the first electromagnetic valve (7) and the second electromagnetic valve (8) are in an open state, the port P is communicated with the port B, and the port T is communicated with the port A; the water outlet of the high-temperature water tank (17) is connected with the P port of the first electromagnetic valve (7) through a fourth water pipe (12), and the A port of the second electromagnetic valve (8) is connected with the water return port of the high-temperature water tank (17) through a third water pipe (11); the water outlet of the low-temperature water tank (16) is connected with the T port of the first electromagnetic valve (7) through a seventh water pipe (15), the B port of the first electromagnetic valve (7) is connected with the T port of the second electromagnetic valve (8) through a fifth water pipe (13), and the B port of the second electromagnetic valve (8) is connected with the water return port of the low-temperature water tank (16) through a sixth water pipe (14);
the control device comprises a motor controller (1), an electromagnetic valve driver (2), a first low-voltage power supply (3) and a second low-voltage power supply (4); the control end of the test motor (6) is connected with the input and output end of the motor controller (1), the motor controller (1) is connected with the input end of the electromagnetic valve driver (2) through a first wire harness (18), the electromagnetic valve driver (2) is connected with the control end of the first electromagnetic valve (7) through a second wire harness (19), and the electromagnetic valve driver (2) is connected with the control end of the second electromagnetic valve (8) through a third wire harness (20).
2. The automatic switching device for cooling water paths for motor tests according to claim 1, wherein: the motor controller also comprises an upper computer (5), and the upper computer (5) is connected with the input and output ends of the motor controller (1).
3. The automatic switching device for cooling water paths for motor tests according to claim 1, wherein: the motor controller also comprises a first low-voltage power supply (3) and a second low-voltage power supply (4), wherein the first low-voltage power supply (3) is connected with the power end of the motor controller (1), and the second low-voltage power supply (4) is connected with the power end of the electromagnetic valve driver (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449956.4A CN114812092B (en) | 2022-04-24 | 2022-04-24 | A automatic switching device in cooling water route for motor test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210449956.4A CN114812092B (en) | 2022-04-24 | 2022-04-24 | A automatic switching device in cooling water route for motor test |
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| CN114812092A CN114812092A (en) | 2022-07-29 |
| CN114812092B true CN114812092B (en) | 2023-11-21 |
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| JPS6338877A (en) * | 1986-08-01 | 1988-02-19 | 株式会社東洋製作所 | Cooling device |
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| CN111521403A (en) * | 2020-05-06 | 2020-08-11 | 河南柴油机重工有限责任公司 | Automatic load regulation control method and system for cold and hot shock test of diesel engine |
| CN211650924U (en) * | 2020-01-20 | 2020-10-09 | 上海电器科学研究所（集团）有限公司 | Automatic device for controlling output of cooling system |
| CN111780448A (en) * | 2020-08-05 | 2020-10-16 | 芜湖弋江海创高新智能空调股份有限公司 | Integrated ground source heat pump host machine with waterway switching function |
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| WO2021244128A1 (en) * | 2020-06-03 | 2021-12-09 | 苏州咖博士咖啡系统科技有限公司 | Water path system for coffee machine |
| CN215256370U (en) * | 2020-11-25 | 2021-12-21 | 潍柴动力股份有限公司 | Oil cooler, high-low temperature cooling system, engine system and vehicle |
| CN215985192U (en) * | 2021-11-01 | 2022-03-08 | 宁波中意液压马达有限公司 | Cycloid hydraulic motor life test system |
| CN216321159U (en) * | 2021-11-11 | 2022-04-19 | 溢泰（南京）环保科技有限公司 | System for clean EDR membrane |
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2022
- 2022-04-24 CN CN202210449956.4A patent/CN114812092B/en active Active
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| JP2005077129A (en) * | 2003-08-28 | 2005-03-24 | Ono Sokki Co Ltd | Engine testing device |
| JP2005140654A (en) * | 2003-11-07 | 2005-06-02 | Sanki Eng Co Ltd | Engine cooling water circulation system for test |
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| CN202928802U (en) * | 2012-11-20 | 2013-05-08 | 凯迈(洛阳)机电有限公司 | Deep thermal shock and constant-temperature test device |
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| CN111780448A (en) * | 2020-08-05 | 2020-10-16 | 芜湖弋江海创高新智能空调股份有限公司 | Integrated ground source heat pump host machine with waterway switching function |
| CN215256370U (en) * | 2020-11-25 | 2021-12-21 | 潍柴动力股份有限公司 | Oil cooler, high-low temperature cooling system, engine system and vehicle |
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| Publication number | Publication date |
|---|---|
| CN114812092A (en) | 2022-07-29 |
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