CN218920248U

CN218920248U - Compact frequency converter integrating air-water cooling module in cabinet body

Info

Publication number: CN218920248U
Application number: CN202223097666.2U
Authority: CN
Inventors: 王航; 杨辉; 向荣海
Original assignee: Xiaochi Electric Co ltd
Current assignee: Xiaochi Electric Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-04-25
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a compact frequency converter integrating an air-water cooling module in a cabinet body, which comprises a bottom plate, wherein the right side of the upper end of the bottom plate is fixedly connected with a frequency conversion cabinet body, the left side of the upper end of the bottom plate is fixedly connected with an air-water cooling cabinet body, one side of the inside of the frequency conversion cabinet body is fixedly provided with a radiator, the inside of the frequency conversion cabinet body is positioned at the rear side of the radiator and is fixedly provided with a transformer body, the upper side of the frequency conversion cabinet body is provided with a first induced air component, the rear side of the inside of the air-water cooling cabinet body is provided with a heat exchange component, the middle side of the inside of the air-water cooling cabinet body is fixedly provided with a shutter baffle, and the front side of the inside of the air-water cooling cabinet body is provided with a second induced air component. By adopting the structure, the utility model has the advantages of low requirement on the installation environment of the frequency converter, low requirement on the cooling water quality, simple system, low water leakage risk, low energy consumption of the cooling system, small site construction amount, no need of separately constructing a frequency converter chamber and the like.

Description

Compact frequency converter integrating air-water cooling module in cabinet body

Technical Field

The utility model belongs to the technical field of frequency converters, and particularly relates to a compact frequency converter with an air-water cooling module integrated in a cabinet body.

Background

The frequency converter is an electric energy control device for converting a power frequency power supply into another frequency by utilizing the on-off action of a power semiconductor device, and is widely applied to industries such as large mining factories, petrochemical industry, municipal water supply, metallurgical steel, electric energy sources and the like. The high-voltage frequency converter mainly comprises a transformer body, a power semiconductor device and the like, wherein the components consume about 2% -4% of energy of the system in the working process, and the energy is emitted in the form of heat. Therefore, heat dissipation of the high voltage inverter is a very important issue.

At present, the existing high-voltage frequency converter cooling mode generally adopts forced air cooling, water cooling frequency converter, frequency converter installation room air conditioner refrigeration and frequency converter installation room air cooling, but the four cooling modes have great disadvantages. Forced air cooling has high requirements on field environment of equipment, a filter screen needs to be cleaned and replaced frequently, and the heat dissipation requirement cannot be met when the power is high. The water-cooling frequency converter has high cost, high water quality requirement, complex system and water leakage risk, and meanwhile, the mode can only cool the power cabinet, and the transformer body cabinet can only adopt forced air cooling. The air conditioner has limited cooling capacity, and the air conditioner selected by the high-power frequency converter has high power consumption, is not energy-saving, occupies a large amount of space and is uneconomical. The installation room of the frequency converter is cooled by air and water, the installation room is required to be independently established for the frequency converter, the construction amount is large, and certain limitation exists. There is thus an urgent need for an economically viable way of cooling the high voltage frequency converter.

Disclosure of Invention

Aiming at the problems in the background art, the utility model aims to provide a compact frequency converter integrating an air-water cooling module in a cabinet body, so as to solve the problems that the existing high-voltage frequency converter cooling mode generally adopts forced air cooling, water cooling frequency converter, frequency converter installation room air conditioner cooling and frequency converter installation room air-water cooling, but the four cooling modes have larger defects. Forced air cooling has high requirements on field environment of equipment, a filter screen needs to be cleaned and replaced frequently, and the heat dissipation requirement cannot be met when the power is high. The water-cooling frequency converter has high cost, high water quality requirement, complex system and water leakage risk, and meanwhile, the mode can only cool the power cabinet, and the transformer body cabinet can only adopt forced air cooling. The air conditioner has limited cooling capacity, and the air conditioner selected by the high-power frequency converter has high power consumption, is not energy-saving, occupies a large amount of space and is uneconomical. The frequency converter is installed room air-water cooling, need to establish the installing room for the frequency converter alone, the construction volume is big, has the problem of certain limitation.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides an integrated compact converter in internal portion of cabinet with empty water-cooling module, includes the bottom plate, the upper end right side fixedly connected with frequency conversion cabinet body of bottom plate, the upper end left side fixedly connected with empty water-cooling cabinet body of bottom plate, the inside one side fixed mounting of frequency conversion cabinet body has the radiator, the inside of the frequency conversion cabinet body is located the rear side fixed mounting of radiator has the transformer body, the upside of the frequency conversion cabinet body is equipped with first induced air subassembly, the inside rear side of the empty water-cooling cabinet body is equipped with heat transfer subassembly, the inside mid-side fixed mounting of the empty water-cooling cabinet body has the shutter baffle, the inside front side of the empty water-cooling cabinet body is equipped with the second induced air subassembly, the upside fixed mounting of the frequency conversion cabinet body has circulating line, circulating line is linked together with the empty water-cooling cabinet body.

Further, as the preferable technical scheme, the first induced air subassembly includes first tuber pipe, first tuber pipe fixed connection is in the upper end of the frequency conversion cabinet body, the inside fixed mounting of first tuber pipe has first fan, circulating line covers first tuber pipe.

Further, as the preferred technical scheme, the second induced air subassembly includes the second tuber pipe, second tuber pipe fixed connection is in the upper end of bottom plate, the empty water freezer body covers the second tuber pipe, the inside fixed mounting of second tuber pipe has the second fan, the through-hole has been seted up to one side of second tuber pipe.

Further, as the preferred technical scheme, the heat exchange assembly comprises a plate heat exchanger, wherein the plate heat exchanger is fixedly connected to the upper side of the inside of the air-water freezer body, one side of the plate heat exchanger is fixedly connected with a water outlet pipe, and one side of the plate heat exchanger is positioned on one side of the water outlet pipe and is fixedly connected with a water inlet pipe.

Further, as a preferable technical scheme, a pre-filter is installed at one side of the water outlet pipe.

Further, as a preferable technical scheme, a water receiving tray is arranged at one side of the interior of the air-cooled cabinet body.

Further, as a preferable technical scheme, a one-way valve is arranged at the rear side of the water receiving disc.

In summary, the utility model has the following advantages:

the method comprises the steps that after first equipment is started, low-temperature gas is driven by a first fan to dissipate heat of a unit through a radiator from a front cavity of a variable-frequency cabinet body and then is changed into medium-temperature gas to enter a rear cavity of the variable-frequency cabinet body, the medium-temperature gas enters a transformer body to dissipate heat of the transformer body, the gas is changed into high-temperature gas to enter the first fan, the high-temperature gas is sent into the rear cavity of the air-frequency cabinet body through an external circulating pipeline by the first fan, the gas is reduced into low-temperature gas through a water-cooling plate type heat exchanger in the rear cavity of the air-frequency cabinet body, at the moment, the second fan pumps the low-temperature gas cooled in the rear cavity of the air-frequency cabinet body into the front cavity of the air-frequency cabinet body through a shutter baffle below the baffle plate and sends the low-temperature gas into the front cavity of the variable-frequency cabinet body through a first air pipe, so that the gas completes a circulation in the frequency converter, the temperature of a heating element in the frequency converter is reduced, the circulation is free of external gas, and the cleanliness of the gas and devices in the cabinet is guaranteed;

secondly, the utility model has the advantages of low requirement on the installation environment of the frequency converter, low requirement on the cooling water quality, simple system, low water leakage risk, low energy consumption of the cooling system, small site construction amount, no need of separately constructing a frequency converter chamber and the like.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic elevational partial construction of the present utility model;

FIG. 3 is a schematic side view of a partial structure of the present utility model;

FIG. 4 is a schematic diagram of the internal structure of the variable frequency cabinet of the utility model;

fig. 5 is a top view of the present utility model.

Reference numerals: 1. the air conditioner comprises a bottom plate, 2, a variable frequency cabinet body, 3, an air-water refrigerator body, 4, a shutter partition board, 5, a first air inducing component, 51, a first air pipe, 52, a first fan, 6, a second air inducing component, 61, a second air pipe, 62, a second fan, 7, a heat exchange component, 71, a plate heat exchanger, 72, a water outlet pipe, 73, a water inlet pipe, 731, a pre-filter, 8, a circulating pipeline, 9, a transformer body, 10, a radiator, 11, a one-way valve, 12 and a water receiving disc.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, the compact frequency converter integrating the air-water cooling module in the cabinet body comprises a bottom plate 1, the right side of the upper end of the bottom plate 1 is fixedly connected with a frequency conversion cabinet body 2, the left side of the upper end of the bottom plate 1 is fixedly connected with an air-water cooling cabinet body 3, the bottom plate 1 is fixed together, so that all air for heat dissipation circulates in the cabinet body and is not affected by the outside, the requirement on the installation and use environment of the frequency converter is reduced, the structure is compact, the occupied space is small, a frequency converter chamber does not need to be built separately, the construction amount is small, a radiator 10 is fixedly installed on one side of the inside of the frequency conversion cabinet body 2, a transformer body 9 is fixedly installed on the rear side of the radiator 10 in the inside of the frequency conversion cabinet body 2, a first air-guiding component 5 is arranged on the upper side of the frequency conversion cabinet body 2, a heat exchange component 7 is arranged on the rear side of the inside of the air-water cooling cabinet body 3, a shutter 4 is fixedly installed on the middle side of the inside of the air-water cooling cabinet body 3, a second air-guiding component 6 is arranged on the front side of the inside of the air-water cooling cabinet body 3, a circulating pipeline 8 is fixedly installed on the upper side of the frequency conversion cabinet 2, the circulating pipeline 8 is not required to be connected with the frequency converter chamber, the frequency converter chamber is not to be built separately, the water consumption is low, the requirement is high, the water consumption is not required to be cooled independently, and a low-level system is not to be built, and the water consumption is required to be cooled independently, and can be required to be cooled independently, and low.

Example 2

Referring to fig. 2-4, in order to achieve the purpose of cooling the transformer body 9 by gas circulation based on embodiment 1, in this embodiment, the first air guiding assembly 5 and the second air guiding assembly 6 are innovatively designed, specifically, the first air guiding assembly 5 includes a first air duct 51, the first air duct 51 is fixedly connected to the upper end of the variable frequency cabinet 2, a first fan 52 is fixedly installed inside the first air duct 51, the circulation pipeline 8 covers the first air duct 51, the second air guiding assembly 6 includes a second air duct 61, the second air duct 61 is fixedly connected to the upper end of the bottom plate 1, the air water refrigerator body 3 covers the second air duct 61, a second fan 62 is fixedly installed inside the second air duct 61, and a through hole is formed on one side of the second air duct 61; through setting up first induced air subassembly 5, first fan 52 can be with leading into transformer body 9 from the temperature of radiator 10 in, dispels the heat to transformer body 9, and the gas after the heat dissipation enters into the circulation tuber pipe through first tuber pipe 51 in, through setting up second induced air subassembly 6, the low temperature gas after the cooling of the air-water freezer body 3 rear chamber is drawn into air-water freezer body 3 front chamber to second fan 62 sees through shutter baffle 4 below the baffle to can send the low temperature gas into the front chamber of frequency conversion cabinet body 2 through first tuber pipe 51.

Example 3

Referring to fig. 2, 3 and 5, in this embodiment, in order to achieve the purpose of preventing the water inlet pipe 73 from being blocked, the heat exchange assembly 7 of this embodiment is innovatively designed, specifically, the heat exchange assembly 7 includes a plate heat exchanger 71, the plate heat exchanger 71 is fixedly connected to the upper side of the interior of the air-water refrigerator body 3, one side of the plate heat exchanger 71 is fixedly connected with the water outlet pipe 72, one side of the plate heat exchanger 71 is positioned at one side of the water outlet pipe 72 and is fixedly connected with the water inlet pipe 73, and one side of the water outlet pipe 72 is provided with the pre-filter 731; by arranging the heat exchange assembly 7, the plate heat exchanger 71 is water-cooled, one side of the plate heat exchanger 71 is connected with the water inlet pipe 73, the other side of the plate heat exchanger is connected with the water outlet pipe 72, the water-cooled plate heat exchanger 71 can reduce the gas with high temperature into low-temperature gas, and by arranging the pre-filter 731, the medium entering the water-cooled plate filter can be filtered, so that the water inlet pipe 73 is prevented from being blocked.

Referring to fig. 3 and 5, in order to achieve the purpose of draining water when condensed water appears on the plate heat exchanger 71 or the heat exchanger leaks, in this embodiment, a water receiving disc 12 is placed on one side of the interior of the air-cooled cabinet 3, and a one-way valve 11 is installed on the rear side of the water receiving disc 12; through setting up water collector 12, when condensate water or heat exchanger leak appears on water-cooled plate heat exchanger 71, water falls in water collector 12, avoids falling into empty water freezer body 3, through setting up the one side installation check valve 11 that water collector 12 stretches out empty water freezer body 3, the water drainage in the water collector 12 of being convenient for.

The use principle and the advantages are that: after the equipment is started, under the drive of the first fan 52, low-temperature gas is changed into medium-temperature gas after being radiated from the front cavity of the variable-frequency cabinet body 2 through the radiator 10 and enters the rear cavity of the variable-frequency cabinet body 2, the medium-temperature gas enters the transformer body 9 to radiate heat, the gas is changed into high-temperature gas at the moment and enters the first fan 52, the first fan 52 sends the high-temperature gas into the rear cavity of the air-water refrigerator body 3 through the external circulating pipeline 8, the gas is reduced into low-temperature gas through the water-cooling plate type heat exchanger 71 in the rear cavity of the air-water refrigerator body 3, at the moment, the second fan 62 pumps the low-temperature gas cooled in the rear cavity of the air-water refrigerator body 3 into the front cavity of the air-water refrigerator body 3 through the shutter partition plate 4 below the partition plate and sends the low-temperature gas into the front cavity of the variable-frequency cabinet body 2 through the first air pipe 51, so that the gas completes a circulation in the frequency converter, the temperature of a heating element in the frequency converter is reduced, the circulation of the external gas is free from the participation of the external gas in the frequency converter, and the cleanliness of the device in the frequency converter is ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an with empty water-cooling module integrated at internal compact converter of cabinet which characterized in that: including bottom plate (1), the upper end right side fixedly connected with frequency conversion cabinet body (2) of bottom plate (1), the upper end left side fixedly connected with air-water freezer body (3) of bottom plate (1), inside one side fixedly mounted has radiator (10) of frequency conversion cabinet body (2), the inside of frequency conversion cabinet body (2) is located rear side fixedly mounted of radiator (10) and has transformer body (9), the upside of frequency conversion cabinet body (2) is equipped with first induced air subassembly (5), the inside rear side of air-water freezer body (3) is equipped with heat transfer subassembly (7), the inside mid-side fixed mounting of air-water freezer body (3) has shutter baffle (4), the inside front side of air-water freezer body (3) is equipped with second induced air subassembly (6), the upside fixed mounting of frequency conversion cabinet body (2) has circulating line (8), circulating line (8) are linked together with air-water freezer body (3).

2. A compact inverter integrating an empty water cooling module inside a cabinet as claimed in claim 1, wherein: the first induced air assembly (5) comprises a first air pipe (51), the first air pipe (51) is fixedly connected to the upper end of the variable frequency cabinet body (2), a first fan (52) is fixedly arranged in the first air pipe (51), and the circulating pipeline (8) covers the first air pipe (51).

3. A compact inverter integrating an empty water cooling module inside a cabinet as claimed in claim 1, wherein: the second induced air subassembly (6) is including second tuber pipe (61), second tuber pipe (61) fixed connection is in the upper end of bottom plate (1), empty water freezer body (3) covers second tuber pipe (61), the inside fixed mounting of second tuber pipe (61) has second fan (62), the through-hole has been seted up to one side of second tuber pipe (61).

4. A compact inverter integrating an empty water cooling module inside a cabinet as claimed in claim 1, wherein: the heat exchange assembly (7) comprises a plate heat exchanger (71), the plate heat exchanger (71) is fixedly connected to the upper side of the inside of the air-water refrigerator body (3), one side of the plate heat exchanger (71) is fixedly connected with a water outlet pipe (72), and one side of the plate heat exchanger (71) is positioned on one side of the water outlet pipe (72) and is fixedly connected with a water inlet pipe (73).

5. The compact inverter of claim 4 wherein the air-to-water module is integrated within the cabinet, wherein: one side of the water outlet pipe (72) is provided with a pre-filter (731).

6. A compact inverter integrating an empty water cooling module inside a cabinet as claimed in claim 1, wherein: a water receiving tray (12) is arranged at one side of the interior of the air-cooled refrigerator body (3).

7. The compact inverter of claim 6, wherein the air-to-water module is integrated within the cabinet, wherein: the rear side of the water receiving disc (12) is provided with a one-way valve (11).