CN201062853Y - Air cooling heat pump type multiple outdoor machine of air-conditioner - Google Patents
Air cooling heat pump type multiple outdoor machine of air-conditioner Download PDFInfo
- Publication number
- CN201062853Y CN201062853Y CNU2007201245232U CN200720124523U CN201062853Y CN 201062853 Y CN201062853 Y CN 201062853Y CN U2007201245232 U CNU2007201245232 U CN U2007201245232U CN 200720124523 U CN200720124523 U CN 200720124523U CN 201062853 Y CN201062853 Y CN 201062853Y
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- China
- Prior art keywords
- temperature sensor
- heat exchanger
- air
- premises station
- outdoor machine
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- Expired - Lifetime
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Abstract
The utility model relates to an air cooling heat pump multi-connection type air conditioner outdoor machine, which comprises one or more outdoor machine modular units, consisting of a compressor, a four-way valve, an outdoor heat exchanger, a high pressure fluid reservoir and a low pressure fluid reservoir. Each outdoor machine modular unit is connected with an indoor machine through a fluid pipe and an air pipe. The utility model is characterized in that: an external surface of the outdoor heat exchanger in the outdoor machine modular unit is provided with a first temperature sensor, and a second temperature sensor is arranged at the outlet of an outdoor heat exchanger lower flow path. The first temperature sensor and the second temperature sensor are respectively connected with an electric control panel of the outdoor machine. By using the utility model, the defrostation occasion can be accurately estimated and determined. The frost can be removed, and the constant and stable operation can be carried out when free of frost, so that the heat loss can be reduced.
Description
Technical field
The utility model is a kind of air-cooled heat pump type multi-connected air conditioner off-premises station, particularly a kind of air-cooled heat pump type multi-connected air conditioner off-premises station that is applicable to long-time running at the weather cold district.
Background technology
During the work of air-cooled heat pump air-conditioner, when the outdoor heat exchanger coil temperature is lower than dew-point temperature, its surface produces condensed water, in a single day condensed water is lower than 0 ℃ with regard to frosting, when frosting is serious, air channel between the heat exchanger radiating fin is local or all occupied by frost, thereby has increased thermal resistance and windage, directly influences its heat exchange efficiency.Therefore the defrost function setting of air-cooled heat pump type air-conditioner is essential.But traditional Defrost mode according to the regular time running that defrosts at interval, can't be judged (situation that has frostless defrost) to outdoor heat exchanger frosting situation merely, and it is inaccurate that defrosting is judged opportunity, influences normal heating operation, and the heating capacity loss is serious.
The utility model content
The purpose of this utility model is to provide a kind of defrost opportunity can accurately judged, determine the defrost time, can accomplish white defrost, frostless with regard to continual and steady operation, reduce the air-cooled heat pump type multi-connected air conditioner off-premises station of thermal loss, to overcome weak point of the prior art.
A kind of air-cooled heat pump type multi-connected air conditioner off-premises station by this purpose design, include one and the above off-premises station modular unit of forming by compressor, cross valve, outdoor heat exchanger, high pressure fluid reservoir and low-pressure liquid storing tank, each off-premises station modular unit is connected with indoor set by liquid pipe and tracheae, its architectural feature is that the outdoor heat exchanger outer surface is equiped with first temperature sensor in the above-mentioned off-premises station modular unit, the flowing path outlet place is provided with second temperature sensor under the outdoor heat exchanger, and first temperature sensor and second temperature sensor are connected with the automatically controlled plate of off-premises station respectively.
After the utility model heats and starts operation, first temperature sensor and second temperature sensor are detecting transfer of data to the automatically controlled plate of off-premises station, automatically controlled buttress is according to the numerical value of the first temperature sensor T4 that detects, determine the interval at its place, thereby formulate corresponding with it defrosting scheme, in this defrosting scheme, will be according to the numerical value of the second temperature sensor T3 that detects, determine the moment of its defrosting, therefore, it can accurately judge defrost opportunity, determine the defrost time, can accomplish white defrost, frostless with regard to continual and steady operation, reduce thermal loss.
Description of drawings
Fig. 1 is the structural representation of off-premises station modular unit of the present utility model.
The specific embodiment
Embodiment:
Structural representation of the present utility model as shown in Figure 1, include one and the above off-premises station modular unit of forming by compressor 1, cross valve 2, outdoor heat exchanger 3, high pressure fluid reservoir 4 and low-pressure liquid storing tank 5, each off-premises station modular unit is connected with indoor set 8 by liquid pipe 6 and tracheae 7, outdoor heat exchanger 3 outer surfaces are equiped with the first temperature sensor T4 in the wherein above-mentioned off-premises station modular unit, 3 times flowing path outlet places of outdoor heat exchanger are provided with the second temperature sensor T3, and the first temperature sensor T4 and the second temperature sensor T3 are connected with the automatically controlled plate of off-premises station respectively.
What the above-mentioned first temperature sensor T4 detected is environment temperature, because environment temperature is in variation, so can be divided into several intervals according to actual conditions, each interval corresponding defrosting scheme.What the second temperature sensor T3 detected is the temperature of refrigerant in the stream, and the variation of T3 is indicating the variation of heating capacity, and when the T3 temperature descended, heating capacity also descended thereupon, rate subtracts, and showed that off-premises station has frosting.When the T3 temperature is lower than a certain setting value, just start the defrost program, otherwise with regard to continual and steady operation.
When the utility model uses, heat startup operation back first temperature sensor and second temperature sensor and arrive the automatically controlled plate of off-premises station detecting transfer of data, automatically controlled buttress is according to the numerical value of the first temperature sensor T4 that detects, determine the interval at its place, thereby formulate corresponding with it defrosting scheme, in this defrosting scheme, will be according to the numerical value of the second temperature sensor T3 that detects, determine the moment of its defrosting, therefore, it can accurately judge defrost opportunity, determine the defrost time, can accomplish white defrost, frostless with regard to continual and steady operation, reduce thermal loss.
Claims (1)
1. air-cooled heat pump type multi-connected air conditioner off-premises station, include one and above by compressor (1), cross valve (2), outdoor heat exchanger (3), the off-premises station modular unit that high pressure fluid reservoir (4) and low-pressure liquid storing tank (5) are formed, each off-premises station modular unit is connected with indoor set (8) by liquid pipe (6) and tracheae (7), it is characterized in that outdoor heat exchanger (3) outer surface is equiped with first temperature sensor (T4) in the above-mentioned off-premises station modular unit, outdoor heat exchanger (3) is provided with second temperature sensor (T3) in the flowing path outlet place down, and first temperature sensor (T4) and second temperature sensor (T3) are connected with the automatically controlled plate of off-premises station respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201245232U CN201062853Y (en) | 2007-06-11 | 2007-06-11 | Air cooling heat pump type multiple outdoor machine of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201245232U CN201062853Y (en) | 2007-06-11 | 2007-06-11 | Air cooling heat pump type multiple outdoor machine of air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062853Y true CN201062853Y (en) | 2008-05-21 |
Family
ID=39451232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201245232U Expired - Lifetime CN201062853Y (en) | 2007-06-11 | 2007-06-11 | Air cooling heat pump type multiple outdoor machine of air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062853Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759147A (en) * | 2012-07-02 | 2012-10-31 | 广东美的电器股份有限公司 | Air-conditioning multiple on-line system |
| CN105650813A (en) * | 2016-01-11 | 2016-06-08 | 广东美的制冷设备有限公司 | Defrosting control method and device for air-conditioner |
-
2007
- 2007-06-11 CN CNU2007201245232U patent/CN201062853Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759147A (en) * | 2012-07-02 | 2012-10-31 | 广东美的电器股份有限公司 | Air-conditioning multiple on-line system |
| CN102759147B (en) * | 2012-07-02 | 2014-07-16 | 美的集团股份有限公司 | Air-conditioning multiple on-line system |
| CN105650813A (en) * | 2016-01-11 | 2016-06-08 | 广东美的制冷设备有限公司 | Defrosting control method and device for air-conditioner |
| CN105650813B (en) * | 2016-01-11 | 2018-10-02 | 广东美的制冷设备有限公司 | The defrosting control method and device of air-conditioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20140110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140110 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Foshan, Shunde District, Beijiao Town, Penglai Road, the United States Industrial City Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080521 |