CN215817898U - Low-cost water-cooling frequency conversion cabinet and frequency conversion equipment - Google Patents
Low-cost water-cooling frequency conversion cabinet and frequency conversion equipment Download PDFInfo
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- CN215817898U CN215817898U CN202121737342.3U CN202121737342U CN215817898U CN 215817898 U CN215817898 U CN 215817898U CN 202121737342 U CN202121737342 U CN 202121737342U CN 215817898 U CN215817898 U CN 215817898U
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Abstract
The utility model provides a low-cost water-cooling frequency conversion cabinet, relates to the technical field of frequency converters, and solves the problems of cost increase, complex installation and messy field arrangement caused by the fact that the power of a frequency converter and a motor is not matched or a water chilling unit is added; the main frequency converter and the water cooling system are arranged in the cabinet body; a heat dissipation pipeline is laid in the main frequency converter, and is provided with a heat dissipation pipeline water inlet and a heat dissipation pipeline water outlet which are exposed to the main frequency converter; the water cooling system is connected with the water inlet of the heat dissipation pipeline and the water outlet of the heat dissipation pipeline to form a circulating heat dissipation water path. The utility model integrates the water cooling system and the frequency converter in the cabinet body, can solve the problem that the air cooling frequency converter needs to use a power grade which is larger than the actual power of the motor, and can also reduce the cost of the water cooling system to the maximum extent.
Description
Technical Field
The utility model relates to the technical field of frequency converters, in particular to a low-cost water-cooling frequency conversion cabinet and frequency conversion equipment adopting the same.
Background
The frequency converter provides power and control for commercial and industrial motors and provides essential support for converting electric energy into mechanical energy. However, due to the complexity of the field, thermal protection must be provided depending on the design and application environment. The main advantages of frequency converters are flexible control, smooth start and stop performance, and significant energy savings for high power motors operating under variable loads.
Most high power frequency converters and their accompanying electronic accessories are integrated into an electrical cabinet. The frequency converter not only improves the system efficiency, but also has very high efficiency, and the loss is only 2 to 4 percent. However, since the electric energy conversion in the high-power frequency converter is large, even if the efficiency loss is low, the waste heat of several kilowatts to several tens of kilowatts is generated. Waste heat is mainly generated by a semiconductor power module, an IGBT is integrated in the power module, when the frequency converter carries out carrier capacity transmission at a certain switching frequency, the IGBT module generates switching loss and conduction loss, and the waste heat is accumulated by the IGBT module. If the waste heat can not be conveyed out of the module in time, the temperature generated by module heat accumulation can be rapidly increased, the module is short-circuited, and the frequency converter is invalid.
Therefore, reasonable heat dissipation of the frequency converter has very important influence on improving the reliability and the service life of the frequency converter. At present, the heat dissipation of a frequency converter installed in a frequency conversion cabinet mainly adopts three modes, namely natural cooling, convection heat dissipation and liquid heat dissipation.
Natural heat dissipation
A natural heat dissipation mode is generally selected for a small-capacity frequency converter, the use environment of the frequency converter is good in ventilation, and dust and floating objects are not easy to attach. The dragging objects of the frequency converter are mostly household air conditioners, numerical control machines and the like, the power is low, and the using environment is excellent.
Convection heat dissipation
(1) Radiating fan installed in frequency converter
The built-in fan for heat dissipation is generally used for a universal frequency converter with small capacity. By correctly installing the frequency converter, the heat dissipation capacity of the built-in fan of the frequency converter can be maximized. The built-in fan can take away the heat inside the frequency converter. And finally dissipating heat through the iron plate of the box body where the frequency converter is located.
(2) Heat dissipation of external fan of frequency converter
Through in the control box of installation converter, add a plurality of fans that have the convection current function of taking a breath, then can improve the radiating effect of converter greatly, reduce converter operational environment's temperature.
Liquid state heat radiation
Water cooling or oil cooling is a more common method in industrial liquid cooling. It is common to use an external water cooler or oil cooler to be connected to a heat dissipation pipeline of the frequency converter in the frequency conversion cabinet through a water pipe or an oil pipe. The waste heat removal of the frequency converter is ensured through the refrigeration operation of the water chiller or the oil chiller.
The three heat dissipation modes are different in environment and occasion and are also different in application. For the application occasions of 75 kW-200 kW frequency converters, fan heat dissipation is the mainstream means. The electric cabinet generally comprises a fan inside the frequency converter and a fan outside the frequency converter. The heat that inside fan dispelled carries out the heat transfer with electric parts's heat and outside air simultaneously through outside fan, and it is just because the heat converter that dispels the heat of forced air cooling can't in time get rid of used heat, or when electric cabinet ambient temperature is too high, the radiating effect of forced air cooling will become unobvious. Therefore, the problem caused by the heat dissipation of the fan in the frequency converter is that the insufficient heat exchange capacity of the fan leads to driving a motor with the same power, a frequency converter with higher power is needed, and the frequency converter with the rated power grade higher than 80% of the rated power of the motor is needed to drive a load motor, for example, a 75kW motor is driven, the carrier frequency is 8kHz at the same time, and a 132kW frequency converter is needed to drive. The price difference of the frequency converter reaches 40%, a 132kW motor is driven, a 200kW frequency converter is required to be used for driving, the price difference is 46%, and the price difference is larger along with the larger power. Therefore, according to cost conversion, the frequency converter can reduce comprehensive cost by using the water cooling system for heat dissipation, and the frequency converter using the water cooling system can drive the motor with the same power. At present, a high-power frequency conversion cabinet often leads an inlet and an outlet of a heat dissipation water pipe of a frequency converter to the side surface or the back surface of the frequency conversion cabinet, and is additionally provided with a water cooler or a water circulation system. The water cooling machine comprises a compressor, a condenser, an evaporator, a fan, an expansion valve, a water pump and the like, most of the existing water cooling machine equipment is controlled by the fixed-frequency compressor, the fan and the water pump, and a few of the existing water cooling machine equipment adopt the variable-frequency compressor, the fixed-frequency fan and the water pump system. The water pump is fixed speed and flow rate to send water in the water tank to the water inlet of the frequency converter, the water carries waste heat of the frequency converter module away and flows into the water cooler from the water outlet, the water cooler exchanges heat with high-temperature water through the plate evaporator, the cooled water is sent to the water inlet of the frequency converter, and the heating module in the frequency converter can be maintained at a certain temperature repeatedly. The water cooling method can take away waste heat of the frequency converter module in time, and the power grade of the frequency converter is reduced. Generally, a frequency converter with the same power as a motor can be used, the cost of the frequency converter can be reduced, however, a water cooler device is added in the scheme, the system becomes redundant, and field water pipes and cables can cause disorder and difficulty in wiring and increase of cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to design a low-cost water-cooling frequency conversion cabinet, wherein a water-cooling system and a frequency converter are integrated in a cabinet body, so that the problem that the air-cooling frequency converter needs to use a power grade higher than the actual power of a motor can be solved, and the cost of the water-cooling system can be reduced to the maximum extent.
The utility model is realized by the following technical scheme:
the utility model discloses a low-cost water-cooling frequency conversion cabinet, which comprises a main frequency converter, a cabinet body and a water cooling system, wherein the cabinet body is provided with a water inlet and a water outlet; the main frequency converter and the water cooling system are arranged in the cabinet body; a heat dissipation pipeline is laid in the main frequency converter, and is provided with a heat dissipation pipeline water inlet and a heat dissipation pipeline water outlet which are exposed to the main frequency converter; the water cooling system is connected with the water inlet of the heat dissipation pipeline and the water outlet of the heat dissipation pipeline to form a circulating heat dissipation water path.
When the structure is arranged, the water cooling system and the main frequency converter are integrated into the cabinet body, the main frequency converter and the water cooling system are connected through the pipeline to form a circulating heat dissipation water path, the problems that the power of the frequency converter and the motor in the current industrial field is not matched or the water chilling unit is increased, the cost is increased, the installation is complex, the field arrangement is messy and the like can be solved, and the water cooling system can also be suitable for the severe environment field.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the water cooling system comprises a water tank, a water pump and a heat exchanger; the water tank, the water pump and the heat exchanger are all arranged in the cabinet body; the water tank is connected with the water pump through a pipeline, the water pump is connected with the heat exchanger through a pipeline, the heat exchanger is connected with a heat dissipation pipeline water inlet of the main frequency converter through a pipeline, and a heat dissipation pipeline water outlet of the main frequency converter is connected with the water tank through a pipeline.
When the structure is arranged, the water tank, the water pump, the heat exchanger and the main frequency converter of the water cooling system are integrated into the frequency conversion cabinet, a compressor driver, a plate heat exchanger, an electronic expansion valve, a drying filter and the like can be omitted, the settings of low-voltage electric appliances of the water cooling system such as a circuit breaker, a contactor, a transformer and the like are reduced, water pipe pipelines are saved, sheet metal parts are saved, the installation complexity is reduced, and the site space and the later maintenance cost are optimized. The water cooling system pumps water into a heat dissipation pipeline of the main frequency converter through a water pump, and the heated water exchanges heat with an external environment through a heat exchanger.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the main frequency converter is arranged in the middle of the cabinet body, the water tank and the water pump are arranged in the lower portion of the cabinet body, and the heat exchanger is arranged on the upper portion of the cabinet body.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the water cooling system further comprises a heat exchanger fan, and the heat exchanger fan is arranged at the heat exchanger.
When the structure is arranged, the water tank, the water pump, the heat exchanger fan and the main frequency converter of the water cooling system are integrated into the frequency conversion cabinet, a compressor driver, a plate heat exchanger, an electronic expansion valve, a drying filter and the like can be omitted, the low-voltage electric appliances of the water cooling system such as a circuit breaker, a contactor, a transformer and the like are reduced, water pipe pipelines are saved, sheet metal parts are saved, the equipment cost is reduced, the installation complexity is reduced, and the site space and the later maintenance cost are optimized. The water cooling system pumps water into a heat dissipation pipeline of the main frequency converter through a water pump, the heated water exchanges heat with an external environment through a heat exchanger, and a fan of the heat exchanger removes heat of low-voltage electricity in the cabinet and heat of the heat exchanger simultaneously.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the heat exchanger fan is arranged at the top of the cabinet body.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the water cooling system further comprises a controller, the water pump is a variable frequency water pump, and the water pump is connected with the controller.
When the structure is adopted, the controller is arranged in the cabinet body, when the main frequency converter works in a variable load mode, the controller can adjust the flow rate of the variable frequency water pump through the parameters of the main frequency converter to correct the temperature of the water inlet of the heat dissipation pipeline, and the temperature of the water inlet of the heat dissipation pipeline is stable through loop adjustment.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the water cooling system also comprises a controller, the water pump is set as a variable frequency water pump, and the water pump is connected with the controller; the heat exchanger fan is set as a variable frequency fan and connected with the controller.
When the structure is adopted, the controller is arranged in the cabinet body, when the main frequency converter works in a variable load mode, the controller can adjust the flow speed of the variable frequency water pump and the air speed of the variable frequency fan through the parameters of the main frequency converter to correct the temperature of the water inlet, and the temperature of the water inlet of the radiating pipeline is stable through loop adjustment.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the water cooling system further comprises a first temperature sensor, the first temperature sensor is connected with the analog signal input terminal of the controller through a temperature transmitter, and the first temperature sensor is arranged at the water inlet of the heat dissipation pipeline.
When the structure is adopted, the controller and the first temperature sensor are arranged in the cabinet body, when the main frequency converter works in a variable load mode, the controller can adjust the flow speed of the variable frequency water pump and the air speed of the variable frequency fan through parameters such as the water outlet temperature and the water inlet temperature of the main frequency converter to correct the temperature of the water inlet, and the temperature of the water inlet of the heat dissipation pipeline is made to be constant through loop adjustment.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the water cooling system further comprises a second temperature sensor, the second temperature sensor is connected with the analog signal input terminal of the controller through a temperature transmitter, and the second temperature sensor is arranged at the water outlet of the heat dissipation pipeline.
When the structure is arranged, the controller, the first temperature sensor and the second temperature sensor are arranged in the cabinet body, when the main frequency converter works in a load-variable mode, the controller can adjust the flow rate of the variable-frequency water pump and the air speed of the variable-frequency fan through parameters such as the water outlet temperature and the water inlet temperature of the main frequency converter to correct the temperature of the water inlet, and the temperature of the water inlet of the heat dissipation pipeline and the temperature of the water outlet of the heat dissipation pipeline are made to be constant through loop adjustment.
The utility model also discloses frequency conversion equipment which comprises a main motor and the low-cost water-cooling frequency conversion cabinet, wherein the main motor is connected with the main frequency converter.
The utility model has the following advantages and beneficial effects:
(1) according to the utility model, the water cooling system and the main frequency converter are integrated into the cabinet body, and the main frequency converter and the water cooling system are connected through the pipeline to form the circulating heat dissipation water path, so that the problems of cost increase, complex installation, messy field arrangement and the like caused by mismatching of the power of the frequency converter and the motor or increase of a water chilling unit in the current industrial field can be solved, and the water cooling system can also be suitable for the field in a severe environment.
(2) In the utility model, the water tank, the water pump, the heat exchanger and the main frequency converter of the water cooling system are integrated into the frequency conversion cabinet, so that a compressor, a compressor driver, a plate-type heat exchanger, an electronic expansion valve, a drying filter and the like can be omitted, the arrangement of low-voltage electric appliances of the water cooling system such as a circuit breaker, a contactor, a transformer and the like is reduced, water pipe pipelines are saved, sheet metal parts are saved, the installation complexity is reduced, and the field space and the later maintenance cost are optimized. The water cooling system pumps water into a heat dissipation pipeline of the main frequency converter through a water pump, and the heated water exchanges heat with an external environment through a heat exchanger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a low-cost water-cooled frequency conversion cabinet;
labeled as:
1. a main frequency converter; 2. a frequency conversion cabinet; 3. a water tank; 4. a water pump; 5. a heat exchanger; 6. a heat exchanger fan; 7. a heat dissipation pipeline water inlet; 8. a water outlet of the heat dissipation pipeline; 9. and a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1:
a low-cost water-cooling frequency conversion cabinet integrates a water-cooling system and a frequency converter into a cabinet body, can solve the problem that the air-cooling frequency converter must use a power grade larger than the actual power of a motor, and can reduce the cost of the water-cooling system to the maximum extent, as shown in figure 1, the low-cost water-cooling frequency conversion cabinet is particularly arranged into the following structures:
this kind of low-cost water-cooling inverter cabinet includes main converter 1, the cabinet body 2 and water cooling system, and main converter 1 and water cooling system integration are installed and are formed the all-in-one in the cabinet body 2 inside. The main frequency converter 1 is arranged at the left side position of the middle sheet of the cabinet body 2.
The heat dissipation pipeline is laid in the main frequency converter 1, a heat dissipation pipeline water inlet 7 and a heat dissipation pipeline water outlet 8 are respectively arranged at two ends of the heat dissipation pipeline, and the heat dissipation pipeline water inlet 7 and the heat dissipation pipeline water outlet 8 are exposed on the side of the main frequency converter 1 to form an interface.
The water cooling system comprises a 15L water tank 3, a water pump 4 and a heat exchanger 5 which are all installed inside the cabinet body 2, the water tank 3 and the water pump 4 are arranged at the lower position of the cabinet body 2, and the heat exchanger 5 is arranged at the upper position of the cabinet body 2. The water outlet of the water tank 3 is connected with the water inlet of the water pump 4 through a pipeline, the water outlet of the water pump 4 is connected with the water inlet of the heat exchanger 5 through a pipeline, the water outlet of the heat exchanger 5 is connected with the water inlet 7 of the heat dissipation pipeline of the main frequency converter 1 through a pipeline, and the water outlet 8 of the heat dissipation pipeline of the main frequency converter 1 is connected with the water return port of the water tank 3 through a pipeline, so that a complete closed circulating heat dissipation water path is formed.
The water cooling system and the main frequency converter 1 are integrated into the cabinet body 2, the main frequency converter and the water cooling system are connected through a pipeline to form a circulating heat dissipation water path, the problems that the power of the frequency converter and the motor in the current industrial field is not matched or the water chilling unit is increased, cost is increased, installation is complex, field arrangement is messy and the like can be solved, and the water cooling system can also be suitable for severe environment fields. The water tank 3, the water pump 4, the heat exchanger 5 and the main frequency converter 1 of the water cooling system are integrated into the frequency conversion cabinet, a compressor driver, a plate heat exchanger, an electronic expansion valve, a drying filter and the like can be omitted, the settings of low-voltage electric appliances of the water cooling system such as a circuit breaker, a contactor, a transformer and the like are reduced, water pipe pipelines are saved, sheet metal parts are saved, the installation complexity is reduced, and the field space and the later maintenance cost are optimized. The water cooling system pumps water into a heat dissipation pipeline of the main frequency converter 1 through a water pump 4, and the heated water exchanges heat with an external environment through a heat exchanger 5.
Example 2:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
the water cooling system still includes heat exchanger fan 6, heat exchanger fan 6 sets up in the top position of the inside of the cabinet body 2, be located heat exchanger 5's top, water tank 3 with water cooling system, water pump 4, heat exchanger 5 and heat exchanger fan 6 and main converter 1 are integrated to the inverter cabinet in, can leave away the compressor, the compressor driver, plate heat exchanger, electronic expansion valve, drier-filter etc. reduce water cooling system low-voltage apparatus such as circuit breaker, contactor, transformer etc. and set up, the water pipe way is saved, save the sheet metal component, reduce equipment cost, reduce the installation complexity, optimize on-site space and later maintenance cost. The water cooling system pumps water into a heat dissipation pipeline of the main frequency converter 1 through a water pump 4, the heated water exchanges heat with an external environment through a heat exchanger 5, and a fan 6 of the heat exchanger removes heat of low-voltage electricity in the cabinet and heat of the heat exchanger 5 at the same time.
Example 3:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
the water cooling system further comprises a controller 9, the water pump 4 is a variable frequency water pump, the water pump 4 is connected with the controller 9, the controller 9 is arranged in the cabinet body 2, when the main frequency converter 1 works in a variable load mode, the controller 9 can adjust the flow rate of the variable frequency water pump through parameters of the main frequency converter 1 to correct the temperature of the water inlet 7 of the heat dissipation pipeline, and the temperature of the water inlet 7 of the heat dissipation pipeline is stable through loop adjustment.
Preferably, the heat exchanger fan 6 is also set as a variable frequency fan, the heat exchanger fan 6 is connected with the controller 9, the controller 9 is arranged in the cabinet body 2, when the main frequency converter 1 works in a variable load mode, the controller 9 can adjust the flow rate of the variable frequency water pump and the wind speed of the variable frequency fan through parameters of the main frequency converter 1 to correct the temperature of the water inlet, and the temperature of the water inlet 7 of the heat dissipation pipeline is stabilized through loop adjustment. Because the load of the power device driven by the main frequency converter 1 changes, the heat productivity of the frequency converter also changes, and therefore the target temperature can be further accurately controlled by the frequency conversion fan and the frequency conversion water pump. Besides the constant control of water temperature, the low-cost full frequency conversion system has very important significance for energy conservation. The frequency (and the rotating speed) of the fan and water pump type load is in direct proportion to the third power, namely when the rotating speed reaches half of the rated rotating speed, the power is reduced to 1/8 of the rated power. Therefore, the system level energy conservation brought by the full frequency conversion refrigerating system can further promote the energy optimization effect of the factory.
Example 4:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
controlling the water temperature has a direct effect on the lifetime of the module, generally the lower the temperature the lower its losses and the longer the lifetime, but the lower the temperature the lower its voltage withstand capability will decrease, and therefore the risk of overvoltage breakdown of the module will increase instead. Therefore, the water temperature is necessary to be controlled under the proper temperature condition, and the water temperature control method has positive significance for prolonging the service life of the frequency converter.
Therefore, in this embodiment, the water cooling system further includes a first temperature sensor, the first temperature sensor is connected to the analog signal input terminal of the controller 9 through a temperature transmitter, and the first temperature sensor is disposed at the water inlet 7 of the heat dissipation pipe.
A controller 9 and a first temperature sensor are arranged in a cabinet body 2, when the main frequency converter 1 works in a load-changing mode, the controller 9 can adjust the flow rate of a variable frequency water pump and the air speed of a variable frequency fan through parameters such as the water outlet temperature and the water inlet temperature of the main frequency converter 1 to correct the temperature of a water inlet, and the temperature of a water inlet 7 of a heat dissipation pipeline is made to be constant through loop adjustment.
Example 5:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
the water cooling system further comprises a second temperature sensor, the second temperature sensor is connected with an analog signal input terminal of the controller 9 through a temperature transmitter, and the second temperature sensor is arranged at the water outlet 8 of the heat dissipation pipeline. The controller 9 and the first and second temperature sensors are arranged in the cabinet body 2, when the main frequency converter 1 works in a variable load mode, the controller 9 can adjust the flow rate of the variable frequency water pump and the air speed of the variable frequency fan through parameters such as the water outlet temperature and the water inlet temperature of the main frequency converter 1 to correct the temperature of the water inlet, and the temperatures of the water inlet 7 of the heat dissipation pipeline and the water outlet 8 of the heat dissipation pipeline are made to be constant through loop adjustment.
Example 6:
the present embodiment further provides a frequency conversion device on the basis of the foregoing embodiment, and particularly adopts the following arrangement structure:
the frequency conversion equipment comprises a main motor and the low-cost water-cooling frequency conversion cabinet in the embodiment, wherein the main motor is connected with a main frequency converter 1.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (12)
1. The utility model provides a low-cost water-cooling frequency conversion cabinet which characterized in that: comprises a main frequency converter (1), a cabinet body (2) and a water cooling system;
the main frequency converter (1) and the water cooling system are arranged in the cabinet body (2);
a heat dissipation pipeline is laid in the main frequency converter (1), and is provided with a heat dissipation pipeline water inlet (7) and a heat dissipation pipeline water outlet (8) which are exposed to the main frequency converter (1);
the water cooling system is connected with the heat dissipation pipeline water inlet (7) and the heat dissipation pipeline water outlet (8) to form a circulating heat dissipation water path.
2. The low-cost water-cooling frequency conversion cabinet according to claim 1, characterized in that: the water cooling system comprises a water tank (3), a water pump (4) and a heat exchanger (5);
the water tank (3) is connected with the water pump (4) through a pipeline, the water pump (4) is connected with the heat exchanger (5) through a pipeline, the heat exchanger (5) is connected with a heat dissipation pipeline water inlet (7) of the main frequency converter (1) through a pipeline, and a heat dissipation pipeline water outlet (8) of the main frequency converter (1) is connected with the water tank (3) through a pipeline.
3. The low-cost water-cooling frequency conversion cabinet according to claim 2, characterized in that: the main frequency converter (1) is arranged in the middle of the cabinet body (2), the water tank (3) and the water pump (4) are arranged in the lower portion of the cabinet body (2), and the heat exchanger (5) is arranged on the upper portion of the cabinet body (2).
4. The low-cost water-cooling frequency conversion cabinet according to claim 2 or 3, characterized in that: the water cooling system further comprises a heat exchanger fan (6), and the heat exchanger fan (6) is arranged at the heat exchanger (5).
5. The low-cost water-cooling frequency conversion cabinet according to claim 4, characterized in that: the heat exchanger fan (6) is arranged at the top of the cabinet body (2).
6. The low-cost water-cooling frequency conversion cabinet according to claim 2 or 3, characterized in that: the water cooling system further comprises a controller (9), the water pump (4) is set to be a variable-frequency water pump, and the water pump (4) is connected with the controller (9).
7. The low-cost water-cooling frequency conversion cabinet according to claim 4, characterized in that: the water cooling system further comprises a controller (9), the water pump (4) is set to be a variable frequency water pump, and the water pump (4) is connected with the controller (9); the heat exchanger fan (6) is set to be a variable frequency fan, and the heat exchanger fan (6) is connected with the controller (9).
8. The low-cost water-cooling frequency conversion cabinet according to claim 6, characterized in that: the water cooling system further comprises a first temperature sensor, the first temperature sensor is connected with an analog signal input terminal of the controller (9) through a temperature transmitter, and the first temperature sensor is arranged at the water inlet (7) of the heat dissipation pipeline.
9. The low-cost water-cooling frequency conversion cabinet according to claim 7, characterized in that: the water cooling system further comprises a first temperature sensor, the first temperature sensor is connected with an analog signal input terminal of the controller (9) through a temperature transmitter, and the first temperature sensor is arranged at the water inlet (7) of the heat dissipation pipeline.
10. The low-cost water-cooling frequency conversion cabinet according to claim 8, characterized in that: the water cooling system further comprises a second temperature sensor, the second temperature sensor is connected with the analog signal input terminal of the controller (9) through a temperature transmitter, and the second temperature sensor is arranged at the water outlet (8) of the heat dissipation pipeline.
11. The low-cost water-cooling frequency conversion cabinet according to claim 9, characterized in that: the water cooling system further comprises a second temperature sensor, the second temperature sensor is connected with the analog signal input terminal of the controller (9) through a temperature transmitter, and the second temperature sensor is arranged at the water outlet (8) of the heat dissipation pipeline.
12. A frequency conversion device is characterized in that: the low-cost water-cooled frequency conversion cabinet comprises a main motor and a low-cost water-cooled frequency conversion cabinet as claimed in any one of claims 1-11, wherein the main motor is connected with the main frequency converter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121737342.3U CN215817898U (en) | 2021-07-28 | 2021-07-28 | Low-cost water-cooling frequency conversion cabinet and frequency conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121737342.3U CN215817898U (en) | 2021-07-28 | 2021-07-28 | Low-cost water-cooling frequency conversion cabinet and frequency conversion equipment |
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| Publication Number | Publication Date |
|---|---|
| CN215817898U true CN215817898U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121737342.3U Active CN215817898U (en) | 2021-07-28 | 2021-07-28 | Low-cost water-cooling frequency conversion cabinet and frequency conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215817898U (en) |
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2021
- 2021-07-28 CN CN202121737342.3U patent/CN215817898U/en active Active
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