CN201964544U - Low-temperature refrigeration air conditioner - Google Patents
Low-temperature refrigeration air conditioner Download PDFInfo
- Publication number
- CN201964544U CN201964544U CN201120019776XU CN201120019776U CN201964544U CN 201964544 U CN201964544 U CN 201964544U CN 201120019776X U CN201120019776X U CN 201120019776XU CN 201120019776 U CN201120019776 U CN 201120019776U CN 201964544 U CN201964544 U CN 201964544U
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- Prior art keywords
- low
- air conditioner
- temperature refrigeration
- compressor
- refrigeration air
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Abstract
The utility model provides a low-temperature refrigeration air conditioner, which comprises an outdoor unit, wherein a connecting pipe which connects a compressor and a condenser and is arranged on the outdoor unit is provided with a pressure relay, and the pressure relay is in series connection with an outdoor fan through a cable. The low-temperature refrigeration air conditioner is improved based on the existing air conditioner unit, the pressure relay is added to control the start and the halt of the compressor, the structure is simple, the cost of equipment is low, and the operation of the equipment is reliable. Simultaneously, the low-temperature refrigeration air conditioner can avoid frequent start of the compressor, thereby effectively prolonging the service life of the compressor, and avoiding frosting of an indoor heat exchanger under low-temperature refrigeration.
Description
Technical field
The utility model relates to the domestic air conditioning field, particularly a kind of low-temperature refrigeration air conditioner.
Background technology
In the existing domestic air conditioning, when cryogenic refrigeration, the normal mode that adopts is: by indoor pipe temperature detecting temperature, indirect changing according to indoor coil pipe comes the compressor of the outdoor unit of stop and start to realize.This control mode, meeting frequent start-stop compressor reduces its service life greatly, and the easy frosting of indoor heat exchanger, influences the normal use of air-conditioning unit.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, freezes at low temperatures at existing air-conditioning, need often stop compressor and indoor heat exchanger frosting phenomenon, and a kind of simple in structure, the low-temperature refrigeration air conditioner that can effectively protect compressor is provided.
The utility model is achieved through the following technical solutions: a kind of low-temperature refrigeration air conditioner, comprise outdoor unit, and on the described outdoor unit, the connecting pipe of compressor and condenser is provided with pressure switch, and pressure switch is connected with outdoor fan by cable.
Described pressure switch is the motor capacitances in series by cable and outdoor fan also.
It is the low tension switch replacement of PCL-300/400-L0180 that described pressure switch also can adopt model.
Described cable is provided with the joint sleeve that makes things convenient for cable to prolong or connect usefulness.
When this low-temperature refrigeration air conditioner used, to the protection philosophy of compressor be: when outdoor temperature was higher, the pressure at expulsion of compressor was higher than the pressure switch operating pressure, and this moment, pressure switch was communicated with, the outdoor fan normal operation; When outdoor temperature was low, along with the outdoor heat exchange temperature difference increases, pressure at expulsion was along with reduction, when temperature is low to a certain degree the time, pressure at expulsion is low excessively, the pressure switch action, disconnect outdoor fan, thereby reduce the outdoor heat exchange effect, improve outdoor heat exchange pressure, improve the indoor temperature difference, because outdoor fan stops, cause system pressure to rise, when pressure is raised to certain value, the outdoor fan entry into service; Thereby avoid the frequent stop and start of low temperature lower compression machine; Because the pressure of indoor heat exchanger improves and the raising of refrigerant temperature, avoids indoor heat exchanger frosting phenomenon under cryogenic refrigeration.
Compared with prior art, the utlity model has following beneficial effect:
This low-temperature refrigeration air conditioner improves on existing air-conditioning unit, sets up the stop and start action of pressure switch with the control compressor, and it is simple in structure, equipment cost is lower, the equipment operation is also reliable.Simultaneously, this low-temperature refrigeration air conditioner can avoid high frequent to start preferably, thereby effectively prolongs the service life of compressor, has also avoided indoor heat exchanger frosting phenomenon under cryogenic refrigeration.
Description of drawings
Fig. 1 is the outdoor unit structural representation of this low-temperature refrigeration air conditioner.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
A kind of low-temperature refrigeration air conditioner of present embodiment comprises outdoor unit, its structure as shown in Figure 1, on the outdoor unit, the connecting pipe of compressor and condenser is provided with pressure switch 1, pressure switch 1 is connected with outdoor fan 3 by cable 2.
Pressure switch 1 is also connected with the motor electric capacity 4 of outdoor fan by cable 2.
It is the low tension switch replacement of PCL-300/400-L0180 that pressure switch 1 also can adopt model.
When this low-temperature refrigeration air conditioner used, to the protection philosophy of compressor be: when outdoor temperature was higher, the pressure at expulsion of compressor was higher than the operating pressure of pressure switch 1, and this moment, pressure switch 1 was communicated with, outdoor fan 3 normal operations; When outdoor temperature was low, along with the outdoor heat exchange temperature difference increases, pressure at expulsion was along with reduction, when temperature is low to a certain degree the time, pressure at expulsion is low excessively, pressure switch 1 action, disconnect outdoor fan 3, thereby reduce the outdoor heat exchange effect, improve outdoor heat exchange pressure, improve the indoor temperature difference, because outdoor fan 3 stops, cause system pressure to rise, when pressure is raised to certain value, the outdoor fan entry into service; Thereby avoid the frequent stop and start of low temperature lower compression machine; Because the pressure of indoor heat exchanger improves and the raising of refrigerant temperature, avoids indoor heat exchanger frosting phenomenon under cryogenic refrigeration.
As mentioned above, just can realize the utility model preferably, the foregoing description is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model; Be that all equalizations of being done according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (3)
1. a low-temperature refrigeration air conditioner comprises outdoor unit, it is characterized in that, on the described outdoor unit, the connecting pipe of compressor and condenser is provided with pressure switch, and pressure switch is connected with outdoor fan by cable.
2. according to the described a kind of low-temperature refrigeration air conditioner of claim 1, it is characterized in that described pressure switch is the motor capacitances in series by cable and outdoor fan also.
3. according to the described a kind of low-temperature refrigeration air conditioner of claim 1, it is characterized in that described cable is provided with the joint sleeve that makes things convenient for cable to prolong or connect usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120019776XU CN201964544U (en) | 2011-01-21 | 2011-01-21 | Low-temperature refrigeration air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120019776XU CN201964544U (en) | 2011-01-21 | 2011-01-21 | Low-temperature refrigeration air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964544U true CN201964544U (en) | 2011-09-07 |
Family
ID=44527085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120019776XU Expired - Fee Related CN201964544U (en) | 2011-01-21 | 2011-01-21 | Low-temperature refrigeration air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201964544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101033A (en) * | 2013-04-09 | 2014-10-15 | 三菱电机株式会社 | Air conditioner |
-
2011
- 2011-01-21 CN CN201120019776XU patent/CN201964544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101033A (en) * | 2013-04-09 | 2014-10-15 | 三菱电机株式会社 | Air conditioner |
| CN104101033B (en) * | 2013-04-09 | 2017-04-12 | 三菱电机株式会社 | Air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |