CN100450335C - Radiation cooling method for power device of refrigeration device - Google Patents
Radiation cooling method for power device of refrigeration device Download PDFInfo
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- CN100450335C CN100450335C CNB2006100507153A CN200610050715A CN100450335C CN 100450335 C CN100450335 C CN 100450335C CN B2006100507153 A CNB2006100507153 A CN B2006100507153A CN 200610050715 A CN200610050715 A CN 200610050715A CN 100450335 C CN100450335 C CN 100450335C
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Abstract
The present invention relates to a radiating and cooling method for power devices of a refrigeration device. The radiating and cooling method for the existing power devices mainly adopts the method of conduction convection, and has unideal radiating and cooling effect. The method of the present invention adopts the method of direct conduction, namely that a device to be radiated and cooled comes into contact with the outer surface of a vapor and liquid separator in a low temperature and air suction loop part of a compressor, or comes into contact with the surface of an air suction pipeline in the low temperature and air suction loop part of the compressor. The device to be radiated and cooled directly comes into contact with the mounting plane on the vapor and liquid separator, and also directly comes into contact with the mounting plane on an air suction pipeline. The method of the present invention meets the requirements of radiation and cooling of the power devices of a refrigeration device, reduces the part cost of a radiating system, and simultaneously increases the reliability of the radiating system.
Description
Technical field
The present invention relates to a kind of radiation cooling method, the radiation cooling method of the power device in especially a kind of refrigerating plant.
Background technology
Refrigerating plants such as transducer air conditioning generally have Intelligent Power Module, rectifier bridge constant power device.These devices surface temperature when work is all higher and must take the radiating and cooling measure otherwise cisco unity malfunction.
The radiation cooling method of existing power device mainly adopts the mode of conduction convection current, generally be radiator and heat transmission small fan to be installed at these device surfaces that need dispel the heat, or radiator is installed in the heat exchanger air channel of air-conditioner outdoor unit, cool off by forced ventilation.These modes can make the structure relative complex of electric cabinet, and cost is higher.As heat radiation is to adopt the forced ventilation in the outdoor heat exchanger air channel to carry out, and when freezing summer, the hot air temperature in the air channel usually can be higher about 10 ℃ than temperature.When hot weather, temperature can meet and exceed 50 ℃ in the air channel.The spreader surface temperature that ordinary circumstance requires Intelligent Power Module, rectifier bridge constant power device are installed should be controlled at the reliability that could guarantee device below 65 ℃, and as seen the temperature difference has only 15 ℃ between the two, and heat transfer temperature difference is less, and the heat radiation cooling effect is undesirable.Be installed in simultaneously in the air channel, owing to be subjected to the restriction of structure, radiator tends to be in the vortex of gas, and the heat exchange effect is relatively poor, can only reach the requirement of heat radiation usually by the volume that enlarges radiator.In addition in the air channel because the layout of radiator and part electric cabinet has also influenced the condenser radiating effect, the performance of refrigerating plants such as air-conditioning is affected.Simultaneously since radiator in the air channel, air flowing can be with the dust collection in spreader surface, the time has been grown and can produce adverse influence to radiating effect, even unit is broken down.The access way that adopts small fan to dispel the heat and must design a cover air in the air channel as not being installed in certainly will increase the complexity of structural design; Owing to increased small fan, the reliability of device is reduced relatively simultaneously.
Summary of the invention
Purpose of the present invention is exactly at the deficiencies in the prior art, a kind of radiation cooling method of power device of refrigeration device is provided, not only guarantee the heat radiation cooling requirement of power device of refrigeration device, and reduced the cost of parts of cooling system, improved the reliability of cooling system simultaneously.
Method of the present invention is to adopt the directly method of conduction, need to be about to the device of heat radiation cooling directly to contact with the part in the air-breathing loop of compressor low temperature, by and low-temperature refrigerant between mutual heat transfer realize that heat radiation cools off.
A described part with the air-breathing loop of compressor low temperature directly contacts, and is the device of needs heat radiation cooling is directly contacted with vapour liquid separator outer surface in the air-breathing loop of compressor low temperature; The device of cooling that maybe will need to dispel the heat directly contacts with suction line in the air-breathing loop of compressor low temperature.
Vapour liquid separator outer surface in described and the air-breathing loop of compressor low temperature directly contacts to face contacts, promptly with vapour liquid separator on mounting plane directly contact.Suction line in described and the air-breathing loop of compressor low temperature directly contacts to face contacts, promptly with suction line on the metal heat-conducting plane of installation directly contact.
The present invention adopts will need the power device of cooling to be directly installed on the installed surface in the refrigerating plant, by and low-temperature refrigerant between mutual heat transfer reach the method that makes power device cooling, with existing by power device being installed in spreader surface and comparing by blower fan forced convertion cooling, bulky radiator and cooling fan have been reduced, not only reduce cost, also improved the reliability of system.Simultaneously from effect analysis, influenced by the convection current air themperature with the radiating effect of blower fan forced convertion mode, air themperature is high more, and radiating effect is poor more, and when summer operation, radiating effect can variation.Adopt power device and low-temperature refrigerant pipeline contact by the good installed surface of thermal conductivity that to conduct heat be to utilize the low-temperature refrigerant that circulates that heat on the installed surface is constantly taken away, device is lowered the temperature.Because the temperature of cold-producing medium flow low, circulation is big, the temperature of installed surface is also lower, and with radiator heat-dissipation blower fan method ratio, the temperature of spreader surface is than the temperature height of installed surface on the air-breathing loop; The temperature of air is than the temperature height of cold-producing medium; The flow of air circulation flow-rate ratio refrigerant cycle that flows through radiator is little.Relatively can draw as long as installation is provided with suitably from these, adopt the method for the invention can satisfy existing heat radiation requirement fully.And from as can be known above, this method guarantees not only that the cooling of power device of refrigeration device requires but also the cost of parts that reduced cooling system has improved the reliability of cooling system simultaneously.
Description of drawings
1. Fig. 1 is the one embodiment of the invention schematic diagram;
2. Fig. 2 is another embodiment of the present invention schematic diagram.
Embodiment
As shown in Figure 1, have a plane 3 as installed surface on the vapour liquid separator 2 in the air-breathing loop feature 1 of compressor low temperature (dashed rectangle part among the figure), will need the power device 4 of heat radiation to be installed on this plane in the refrigerating plant electric cabinet.By the circulation of the low-temperature refrigerant in the vapour liquid separator, the heat transfer on this plane, the temperature reduction with device realizes the heat radiation cooling.
As shown in Figure 2, on the suction line 5 in the air-breathing loop feature 1 of compressor low temperature (dashed rectangle part among the figure) heat conductivility good metal heat conduction installed surface 6 is set, and will needs the power device 4 of heat radiation to be installed on this face in the refrigerating plant electric cabinet.By the low-temperature refrigerant circulation of suction line, in the heat transfer of installed surface, the temperature reduction with device realizes the heat radiation cooling.
Claims (1)
1, a kind of radiation cooling method of power device of refrigeration device is characterized in that on the suction line in the air-breathing loop of compressor low temperature in the refrigerating plant metal heat-conducting plane being installed; This method is to adopt the directly method of conduction, need to be about to the device of heat radiation cooling directly to contact with described metal heat-conducting plane, by and low-temperature refrigerant between mutual heat transfer realize that heat radiation cools off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100507153A CN100450335C (en) | 2006-05-12 | 2006-05-12 | Radiation cooling method for power device of refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100507153A CN100450335C (en) | 2006-05-12 | 2006-05-12 | Radiation cooling method for power device of refrigeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1870879A CN1870879A (en) | 2006-11-29 |
| CN100450335C true CN100450335C (en) | 2009-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100507153A Expired - Fee Related CN100450335C (en) | 2006-05-12 | 2006-05-12 | Radiation cooling method for power device of refrigeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100450335C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445659C (en) * | 2007-02-12 | 2008-12-24 | 格林斯潘控制技术（上海）有限公司 | Heat releasing mechanism of frequency conversion power driving module |
| RU2581554C2 (en) * | 2011-05-20 | 2016-04-20 | Дайкин Индастриз, Лтд. | External unit of cooling device |
| CN102297546B (en) * | 2011-09-02 | 2014-02-05 | 佛山市顺德区和而泰电子科技有限公司 | Compressor and air conditioner comprising same |
| CN104754911B (en) * | 2013-12-25 | 2019-05-10 | 珠海格力电器股份有限公司 | compressor and compressor unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536958A (en) * | 2003-04-11 | 2004-10-13 | 乐金电子(天津)电器有限公司 | Chip cooling device |
| CN1621757A (en) * | 2003-11-27 | 2005-06-01 | 三洋电机株式会社 | Air conditioner |
| CN1721780A (en) * | 2004-07-12 | 2006-01-18 | 三星电子株式会社 | The outdoor unit of air-conditioner |
| US20060096554A1 (en) * | 2004-10-12 | 2006-05-11 | Usui Kokusai Sangyo Kaisha Limited | Control method for external control type fan clutch |
-
2006
- 2006-05-12 CN CNB2006100507153A patent/CN100450335C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536958A (en) * | 2003-04-11 | 2004-10-13 | 乐金电子(天津)电器有限公司 | Chip cooling device |
| CN1621757A (en) * | 2003-11-27 | 2005-06-01 | 三洋电机株式会社 | Air conditioner |
| CN1721780A (en) * | 2004-07-12 | 2006-01-18 | 三星电子株式会社 | The outdoor unit of air-conditioner |
| US20060096554A1 (en) * | 2004-10-12 | 2006-05-11 | Usui Kokusai Sangyo Kaisha Limited | Control method for external control type fan clutch |
Non-Patent Citations (2)
| Title |
|---|
| 蒸发冷却技术在大功率模块冷却中的应用. 李振国，国建鸿，傅德平.电力电子技术，第38卷第5期. 2004 |
| 蒸发冷却技术在大功率模块冷却中的应用. 李振国，国建鸿，傅德平.电力电子技术，第38卷第5期. 2004 * |
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| Publication number | Publication date |
|---|---|
| CN1870879A (en) | 2006-11-29 |
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Granted publication date: 20090107 Termination date: 20110512 |