CN104638879A - Frequency converter and air conditioner - Google Patents
Frequency converter and air conditioner Download PDFInfo
- Publication number
- CN104638879A CN104638879A CN201310554465.7A CN201310554465A CN104638879A CN 104638879 A CN104638879 A CN 104638879A CN 201310554465 A CN201310554465 A CN 201310554465A CN 104638879 A CN104638879 A CN 104638879A
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- transducer body
- air channel
- refrigerant passage
- converter according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/56—Cooling being a secondary aspect
Abstract
The invention provides a frequency converter and an air conditioner. The frequency converter comprises a frequency converter body and a cooling device. The cooling device is arranged on the frequency converter body and is provided with an air channel, the air channel is communicated with the frequency converter body, a cooling structure and a fan are arranged in the air channel, air in the air channel can be cooled by the cooling structure, and the cooled air in the air channel can flow into the frequency converter body under the effect of the fan. The frequency converter and the air conditioner have the advantage that frequency converter body cooling effects can be greatly improved.
Description
Technical field
The present invention relates to refrigeration and air-conditioning technical field, in particular to a kind of frequency converter and air conditioner.
Background technology
Inversion, the Important Components such as rectification module and reactor of frequency converter adopt water-cooled or air-cooled usually.Mainly there is following problem in air-cooled technology: cooling load demand is large, requires that air quantity is large, and cause blower fan volume large, whole frequency converter overall volume is bigger than normal, and Wind Volume causes fan noise bigger than normal; The reliability of laying dust problem to appliance component has an impact; Blower fan air draft causes units' installation ambient temperature to raise, and needing increases corresponding air-conditioning system to machine room.Mainly there is following problems in Water Cooling Technology: needs outer collecting system of water; The easy fouling of water, causes heat transfer effect to be deteriorated; The conductance of water is high, once pipeline leaks, will cause short circuit, cause the damage of electronic devices and components.Therefore water-cooled or air-cooled cooling effect unsatisfactory.
Summary of the invention
The present invention aims to provide a kind of frequency converter and air conditioner, to solve in prior art the undesirable problem of the effect that adopts water-cooled or air-cooled technology to cool frequency converter.
To achieve these goals, according to an aspect of the present invention, provide a kind of frequency converter, this frequency converter comprises transducer body and is arranged on the cooling device on transducer body, wherein, cooling device has the air channel be communicated with transducer body, is provided with the cooling structure of lowering the temperature to the gas in air channel in air channel, and makes the gas in air channel after cooling enter the blower fan of the inside of transducer body.
Further, air channel is arranged on the outside of transducer body, and the two ends in air channel are communicated with transducer body respectively.
Further, first port be communicated with transducer body in air channel arranges cooling structure, and the second port arranges blower fan.
Further, first port in air channel is provided with drainage pipe and/or drip tray.
Further, the air outlet of blower fan is towards the inside of transducer body.
Further, cooling structure is heat exchanger, is provided with the first refrigerant passage in heat exchanger.
Further, transducer body comprises reactor, and reactor is arranged on the side of the close blower fan of frequency converter.
Further, transducer body also comprises shell body, and inner surface and/or the outer surface of shell body are provided with heat-insulation layer.
Further, transducer body also comprises commutation inversion device and cold drawing, and commutation inversion device is sticked on cold drawing, and is provided with the second refrigerant passage in cold drawing.
Further, commutation inversion device comprises rectification module and inversion module, and cold drawing comprises the first plate installing rectification module and the Second Board installing inversion module, and the first plate and the Second Board serial or parallel connection are on the second refrigerant passage.
Further, the entrance point of the first refrigerant passage and the second refrigerant passage is provided with flow control valve, and the inside of transducer body is provided with temperature sensor.
According to a further aspect in the invention, provide a kind of air conditioner, comprise frequency converter, frequency converter is above-mentioned frequency converter, is connected with the refrigerant exported by air conditioner in cooling structure.
In accordance with a further aspect of the present invention, provide a kind of air conditioner, comprise frequency converter, frequency converter is above-mentioned frequency converter, and the first refrigerant passage is communicated with the medium circulation pipeline of air conditioner with the second refrigerant passage.
Further, the arrival end of the first refrigerant passage and the second refrigerant passage is all communicated with the condenser of air conditioner or economizer, and the port of export is all communicated with the evaporator of air conditioner or compressor.
Apply technical scheme of the present invention, frequency converter comprises transducer body and is arranged on the cooling device on transducer body, wherein, cooling device has the air channel be communicated with transducer body, be provided with the cooling structure that the gas in air channel is lowered the temperature in air channel, and make the gas in air channel after cooling enter the blower fan of the inside of transducer body.In the present invention, cooling structure and blower fan is provided with in air channel, the temperature of the wind in air channel can be reduced by the effect of cooling structure, the wind after recycling blower fan makes cooling enters the inside of transducer body, drastically increases the cooling effect to transducer body.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the assembling assumption diagram of frequency converter of the present invention.
Description of reference numerals:
10, transducer body; 11, commutation inversion device; 111, rectification module; 112, inversion module; 12, cold drawing; 13, reactor; 20, cooling device; 21, air channel; 22, cooling structure; 23, blower fan; 211, the first port; 212, the second port; 30, the first refrigerant passage; 40, drainage pipe; 50, the second refrigerant passage.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Shown in Figure 1, according to the first embodiment of the present invention, the cooling device 20 that frequency converter comprises transducer body 10 and is arranged on transducer body 10, wherein, cooling device 20 has the air channel 21 be communicated with transducer body 10, be provided with the cooling structure 22 that the gas in air channel 21 is lowered the temperature in air channel 21, and make the gas in air channel 21 after cooling enter the blower fan 23 of the inside of transducer body 10.In the present embodiment, cooling structure 22 and blower fan 23 is provided with in air channel 21, the temperature of the wind in air channel 21 can be reduced by the effect of cooling structure 22, wind after cooling is delivered to the inside of transducer body 10 by recycling blower fan 23, drastically increases the cooling effect to transducer body 10.Meanwhile, enter the wind of transducer body 10 after cooling process, the air supply velocity of blower fan 23 can reduce, thus reduces the noise of frequency converter, when air quantity reduces, can reduce the volume of frequency converter.
In the present embodiment, air channel 21 is arranged on the outside of transducer body 10, and the two ends in air channel 21 are communicated with transducer body 10 respectively, the cooling duct of whole frequency converter is made to form the environment of an airtight circulation, improve the cleaning inside degree of frequency converter, and then improve the useful life of frequency converter.Due to the effect of recyclegas, effectively can dehumidify to frequency converter inside, solve condensation problem, promote the reliability running electric component in frequency converter.
Preferably, first port 211 place be communicated with transducer body 10 in air channel 21 arranges cooling structure 22, second port 212 place arranges blower fan 23, in such an embodiment, cooling structure 22 and blower fan 23 are separately positioned on the two ends in air channel 21, gas in air channel 21 fully can be lowered the temperature, avoid the distance between cooling structure 22 and blower fan 23 too short and cause cooling structure 22 fully can not to lower the temperature problem to the gas in air channel 21.
Preferably, the gas after the cooling in air channel, towards the inside of transducer body 10, can be blown into the inside of transducer body 10 and cool transducer body 10 by the air outlet of blower fan 23.
Preferably, cooling structure 22 is heat exchanger, is provided with the first refrigerant passage 30, first refrigerant passage 30 and extends to the outside in air channel so that passing into of refrigerant in heat exchanger.In use procedure, after pass into refrigerant in the first refrigerant passage 30, heat exchanger can realize the heat exchange of wind and refrigerant, reduces the temperature of wind, and has blower fan 23 pairs of transducer bodies 10 to blow, realize the cooling to transducer body 10 internal environment.
Preferably, first port 211 place in air channel 21 is provided with drainage pipe 40 and/or drip tray (not shown), and the condensed water carrying out heat exchange generation when the wind on heat exchanger and refrigerant is discharged by drainage pipe 40, if the water yield is more also can set up drip tray.
Preferably, transducer body 10 also comprises reactor 13, reactor 13 arranges the side of the close blower fan 23 near frequency converter, because of the restriction of reactor 13 structure, be not suitable for using cold drawing 12 contact to dispel the heat, and reactor 13 radiating requirements does not have the demand of commutation inversion device 11 high, therefore reactor 13 is arranged on and adopts cold wind to carry out cooling near the side of blower fan 23.
Preferably, transducer body 10 also comprises shell body (not marking in figure), and inner surface and/or the outer surface of its shell body are provided with heat-insulation layer, and heat-insulation layer can be the good heat-insulation layers of heat-proof quality such as sponge, asbestos, expanded polyethylene foam.Other structures of transducer body 10 all enclose within the outer shell by the shell body of the present embodiment, to reduce the heat transmission of frequency converter and outside air, reduce loss of refrigeration capacity, improve utilance and the cooling effectiveness of refrigerant.
Refer again to shown in Fig. 1, transducer body 10 in the present embodiment also comprises commutation inversion device 11 and cold drawing 12, commutation inversion device 11 is sticked on cold drawing 12, and the second refrigerant passage 50 is set in commutation inversion device 11, second refrigerant passage 50 extends to beyond the shell body of current transformer, is convenient to passing into of refrigerant.Specifically, commutation inversion device 11 comprises rectification module 111 and inversion module 112, cold drawing 12 comprises the first plate installing rectification module 111 and the Second Board installing inversion module 112, this first plate and the Second Board serial or parallel connection are on the second refrigerant passage 50, when passing into refrigerant by the second refrigerant passage 50 to commutation inversion device 11, can cool commutation inversion device 11.
Preferably, the first refrigerant passage 30 in the present embodiment and the entrance point of the second refrigerant passage 50 are provided with flow control valve (not shown), and in the inside set temperature transducer (not shown) of transducer body 10, detect the temperature of the temperature of reactor 13 and the temperature of commutation inversion device 11 or cold drawing 12 respectively, now according to the temperature regulated flow adjuster valve valve opening that temperature sensor detects, thus adjustment cold medium flux, realize the adjustment of temperature.
According to a second embodiment of the present invention, provide a kind of air conditioner, this air conditioner comprises frequency converter, frequency converter is the frequency converter of the first embodiment, in the present embodiment, be connected with the refrigerant exported by air conditioner in cooling structure 22, the coolant system of whole frequency converter and air conditioner couples together, good cooling results and structure are simple, are easy to realize.
According to the third embodiment of the invention, provide a kind of air conditioner, this air conditioner comprises frequency converter, and this frequency converter is the frequency converter of the first embodiment, and wherein the first refrigerant passage 30 is communicated with the medium circulation pipeline of air conditioner with the second refrigerant passage 50.Specifically, the arrival end of the first refrigerant passage 30 and the second refrigerant passage 50 is all communicated with the condenser of air conditioner or economizer, and the port of export is all communicated with the evaporator of air conditioner or compressor.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
(1) the cooling problem of inversion module, rectification module and reactor can effectively be solved.
(2) volume of frequency converter is little, and noise is low.
(3) frequency converter is closed environment, and cleaning inside, service life is long.
(4) due to the effect of recyclegas, effectively can dehumidify to frequency converter inside, solve condensation problem, promote the reliability running electric component in frequency converter.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a frequency converter, it is characterized in that, comprise transducer body (10) and be arranged on the cooling device (20) on described transducer body (10), wherein, described cooling device (20) has the air channel (21) be communicated with described transducer body (10), be provided with the cooling structure (22) that the gas in described air channel (21) is lowered the temperature in described air channel (21), and make the gas in described air channel (21) after cooling enter the blower fan (23) of the inside of described transducer body (10).
2. frequency converter according to claim 1, is characterized in that, described air channel (21) are arranged on the outside of described transducer body (10), and the two ends of described air channel (21) are communicated with described transducer body (10) respectively.
3. frequency converter according to claim 2, it is characterized in that, the first port (211) place be communicated with described transducer body (10) in described air channel (21) arranges described cooling structure (22), and the second port (212) place arranges described blower fan (23).
4. frequency converter according to claim 3, is characterized in that, described first port (211) place of described air channel (21) is provided with drainage pipe (40) and/or drip tray.
5. frequency converter according to any one of claim 1 to 4, is characterized in that, the air outlet of described blower fan (23) is towards the inside of described transducer body (10).
6. frequency converter according to any one of claim 1 to 4, is characterized in that, described cooling structure (22) is heat exchanger, is provided with the first refrigerant passage (30) in described heat exchanger.
7. frequency converter according to any one of claim 1 to 4, is characterized in that, described transducer body (10) comprises reactor (13), and described reactor (13) is arranged on the side of the close described blower fan (23) of described frequency converter.
8. frequency converter according to any one of claim 1 to 4, is characterized in that, described transducer body (10) also comprises shell body, and inner surface and/or the outer surface of described shell body are provided with heat-insulation layer.
9. frequency converter according to claim 6, it is characterized in that, described transducer body (10) also comprises commutation inversion device (11) and cold drawing (12), described commutation inversion device (11) is sticked on described cold drawing (12), and is provided with the second refrigerant passage (50) in described cold drawing (12).
10. frequency converter according to claim 9, it is characterized in that, described commutation inversion device (11) comprises rectification module (111) and inversion module (112), described cold drawing (12) comprises the first plate installing described rectification module (111) and the Second Board installing described inversion module (112), and described first plate and described the Second Board serial or parallel connection are on described second refrigerant passage (50).
11. frequency converters according to claim 9, is characterized in that, the entrance point of described first refrigerant passage (30) and described second refrigerant passage (50) is provided with flow control valve, and the inside of described transducer body (10) is provided with temperature sensor.
12. 1 kinds of air conditioners, comprise frequency converter, it is characterized in that, the frequency converter of described frequency converter according to any one of claim 1 to 11, and described cooling structure is connected with the refrigerant exported by described air conditioner in (22).
13. 1 kinds of air conditioners, comprise frequency converter, it is characterized in that, the frequency converter of described frequency converter according to any one of claim 9 to 11, described first refrigerant passage (30) is communicated with the medium circulation pipeline of described air conditioner with described second refrigerant passage (50).
14. air conditioners according to claim 13, it is characterized in that, the arrival end of described first refrigerant passage (30) and described second refrigerant passage (50) is all communicated with the condenser of described air conditioner or economizer, and the port of export is all communicated with the evaporator of described air conditioner or compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554465.7A CN104638879A (en) | 2013-11-08 | 2013-11-08 | Frequency converter and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554465.7A CN104638879A (en) | 2013-11-08 | 2013-11-08 | Frequency converter and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104638879A true CN104638879A (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310554465.7A Pending CN104638879A (en) | 2013-11-08 | 2013-11-08 | Frequency converter and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN104638879A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208624A (en) * | 2016-07-26 | 2016-12-07 | 无锡市优利康电气有限公司 | A kind of dual-cooled converter |
| CN106411153A (en) * | 2016-11-14 | 2017-02-15 | 珠海格力电器股份有限公司 | Frequency conversion cabinet and frequency conversion cabinet anti-condensation method |
| CN108731206A (en) * | 2018-06-20 | 2018-11-02 | 广东美的暖通设备有限公司 | Refrigerant cooling device and its control method and air-conditioning system |
| CN109713881A (en) * | 2019-02-01 | 2019-05-03 | 广东美的暖通设备有限公司 | Frequency converter |
| CN109713882A (en) * | 2019-02-01 | 2019-05-03 | 广东美的暖通设备有限公司 | Frequency converter |
| CN111238122A (en) * | 2020-02-27 | 2020-06-05 | 上海辛格林纳新时达电机有限公司 | Anti-condensation cabinet body and anti-condensation method for cabinet body |
| CN111757649A (en) * | 2020-07-07 | 2020-10-09 | 珠海格力电器股份有限公司 | Frequency converter with double cooling modes and air conditioner |
| CN112460774A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioner and air conditioner |
| CN112460755A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit, air conditioning unit and control method |
| CN112460736A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit and air conditioning unit |
| CN113923952A (en) * | 2021-10-15 | 2022-01-11 | 石狮市酷瑞电气有限责任公司 | Heat exchanger based on plate-type frequency converter and automatic temperature adjusting mechanism of frequency converter |
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| CN203554265U (en) * | 2013-11-08 | 2014-04-16 | 珠海格力电器股份有限公司 | Frequency converter and air conditioner |
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| JP2005337690A (en) * | 2004-05-24 | 2005-12-08 | Inter Central:Kk | Air jet type radiation air conditioning (cooling/heating) system utilizing incombustible resin film duct |
| CN101315211A (en) * | 2008-06-09 | 2008-12-03 | 洪国伟 | Independent humiture-controlled air conditioner |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208624A (en) * | 2016-07-26 | 2016-12-07 | 无锡市优利康电气有限公司 | A kind of dual-cooled converter |
| CN106208624B (en) * | 2016-07-26 | 2018-06-22 | 无锡市优利康电气有限公司 | A kind of dual-cooled frequency converter |
| CN106411153A (en) * | 2016-11-14 | 2017-02-15 | 珠海格力电器股份有限公司 | Frequency conversion cabinet and frequency conversion cabinet anti-condensation method |
| CN106411153B (en) * | 2016-11-14 | 2019-04-09 | 珠海格力电器股份有限公司 | A kind of frequency conversion tank and frequency conversion tank dewing-proof method |
| CN108731206A (en) * | 2018-06-20 | 2018-11-02 | 广东美的暖通设备有限公司 | Refrigerant cooling device and its control method and air-conditioning system |
| CN109713882A (en) * | 2019-02-01 | 2019-05-03 | 广东美的暖通设备有限公司 | Frequency converter |
| CN109713881A (en) * | 2019-02-01 | 2019-05-03 | 广东美的暖通设备有限公司 | Frequency converter |
| CN112460774A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioner and air conditioner |
| CN112460755A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit, air conditioning unit and control method |
| CN112460736A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit and air conditioning unit |
| CN112460755B (en) * | 2019-09-06 | 2022-07-19 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit, air conditioning unit and control method |
| CN112460774B (en) * | 2019-09-06 | 2022-08-02 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioner and air conditioner |
| CN111238122A (en) * | 2020-02-27 | 2020-06-05 | 上海辛格林纳新时达电机有限公司 | Anti-condensation cabinet body and anti-condensation method for cabinet body |
| CN111757649A (en) * | 2020-07-07 | 2020-10-09 | 珠海格力电器股份有限公司 | Frequency converter with double cooling modes and air conditioner |
| CN113923952A (en) * | 2021-10-15 | 2022-01-11 | 石狮市酷瑞电气有限责任公司 | Heat exchanger based on plate-type frequency converter and automatic temperature adjusting mechanism of frequency converter |
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Application publication date: 20150520 |