CN201297814Y - A heat pump air-conditioner with defrosting function - Google Patents
A heat pump air-conditioner with defrosting function Download PDFInfo
- Publication number
- CN201297814Y CN201297814Y CNU2008202035081U CN200820203508U CN201297814Y CN 201297814 Y CN201297814 Y CN 201297814Y CN U2008202035081 U CNU2008202035081 U CN U2008202035081U CN 200820203508 U CN200820203508 U CN 200820203508U CN 201297814 Y CN201297814 Y CN 201297814Y
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- China
- Prior art keywords
- compressor
- heat exchanger
- interface
- pump air
- heat pump
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Abstract
A heat pump air-conditioner with defrosting function comprises a compressor, a magnetic valve for defrosting, a first heat exchanger, a second heat exchanger and a throttling device; wherein the throttling device is connected between the first heat exchanger and the second heat exchanger in series. The heat pump air-conditioner further comprises a four-way valve; a first interface of the four-way valve is communicated with a high-pressure outlet of the compressor; a second interface is communicated with one end of the first heat exchanger; a third interface is communicated with a low-pressure inlet of the compressor; a fourth interface is communicated with the other end of the second exchanger; one end of the magnetic valve is connected between the first interface of the four-way valve and the high-pressure outlet of the compressor in series; and the other end of the magnetic valve is connected with the third interface of the four-way valve and the low-pressure inlet of the compressor in series. In the heating and defrosting process, the heat pump air-conditioner can bypass the high-pressure exhaust of the compressor to the low-pressure return air through the magnetic valve, thereby improving the pressure of the system on the low-pressure side, improving the heating performance and prolonging the service life of the compressor.
Description
Technical field
The utility model relates to a kind of heat pump air conditioner, particularly a kind of heat pump air conditioner with defrost function.
Background technology
At present; the situation of low-voltage variation can appear in heat pump air conditioner in defrost process; the general parts that adopt heat pump air conditioner to be provided with direct shielding low-voltage defencive function guarantee the continous-stable operation of system; this method will force the compressor of heat pump air conditioner to move under most evil bad operating mode; consequently shorten the life-span of compressor, influence the reliability of system.At this situation, some manufacturer has done a little improvement, as disclosing a kind of Teat pump boiler or heat pump air conditioner among Chinese patent literature CN 2010509 12Y with defrost function, include compressor, condenser, throttling arrangement and evaporimeter, compressor, condenser, throttling arrangement and evaporimeter are cascaded successively, it is characterized in that: between the connecting pipe of compressor and condenser, be connected an arm, and the defrosting magnetic valve is housed on arm to evaporator inlet; In the middle of the pipeline between the return-air mouth of the outlet of evaporimeter and compressor, electric heater unit is housed.Though it is low excessively that this Teat pump boiler with defrost function or heat pump air conditioner can both can prevent to a certain extent that low pressure appearred in locking system in the heating and defrosting process, can guarantee that again normal the and system of compressor operating operating mode moves continuously, but, its cost of manufacture and operating cost are all higher, are necessary further improvement and perfect.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, can prevent from effectively in defrost process, to occur that low pressure is low excessively, cost of manufacture and operating cost is all lower, the heat pump air conditioner of long service life, the reliability height of system, band defrost function that heating effect is good, to overcome weak point of the prior art.
A kind of heat pump air conditioner by this purpose design with defrost function, comprise compressor, the magnetic valve that defrost is used, first heat exchanger, second heat exchanger and throttling arrangement, throttling arrangement is serially connected between first heat exchanger and second heat exchanger, its architectural feature is that heat pump air conditioner also includes cross valve, first interface of this cross valve communicates with the high-pressure outlet of compressor, second interface communicates with first heat exchanger, one end, the 3rd interface communicates with the low-pressure inlet of compressor, the 4th interface communicates with the second heat exchanger other end, one end of magnetic valve is serially connected between the high-pressure outlet of first interface of cross valve and compressor, and the other end of magnetic valve is serially connected between the low-pressure inlet of the 3rd interface of cross valve and compressor.
The next door of described first heat exchanger is provided with the first heat exchange fan.
The next door of described second heat exchanger is provided with the second heat exchange fan.
The utility model is in the heating and defrosting process, can the high pressure gas of compressor directly be bypassed to the low pressure return-air of compressor by magnetic valve, thereby can improve the low-pressure lateral pressure of system, guarantee the continuity and the reliability of air-conditioner operation, when improving heating performance, guarantee and prolong the service life of compressor.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, the heat pump air conditioner of this band defrost function comprises magnetic valve 2, first heat exchanger 3, second heat exchanger 5, throttling arrangement 4 and cross valve 8 that compressor 1, defrost are used.The first interface a of cross valve communicates with the high-pressure outlet of compressor 1, the second interface b of cross valve 8 communicates with first heat exchanger, 3 one ends, the 3rd interface c of cross valve 8 communicates with the low-pressure inlet of compressor 1, the 4th interface d of cross valve 8 communicates with second heat exchanger, 5 other ends, one end of magnetic valve 2 is serially connected between the high-pressure outlet of the first interface a of cross valve 8 and compressor 1, the other end of magnetic valve 2 is serially connected between the low-pressure inlet of the 3rd interface c of cross valve 8 and compressor 1, and throttling arrangement 4 is serially connected between first heat exchanger 3 and second heat exchanger 5.
The next door that the next door of first heat exchanger 3 is provided with the first heat exchange fan, 7, the second heat exchangers 5 is provided with the second heat exchange fan 6.
Claims (3)
1. heat pump air conditioner with defrost function, comprise compressor (1), the magnetic valve that defrost is used (2), first heat exchanger (3), second heat exchanger (5) and throttling arrangement (4), throttling arrangement is serially connected between first heat exchanger and second heat exchanger, it is characterized in that heat pump air conditioner also includes cross valve (8), first interface (a) of this cross valve communicates with the high-pressure outlet of compressor, second interface (b) communicates with first heat exchanger, one end, the 3rd interface (c) communicates with the low-pressure inlet of compressor, the 4th interface (d) communicates with the second heat exchanger other end, one end of magnetic valve is serially connected between the high-pressure outlet of first interface of cross valve and compressor, and the other end of magnetic valve is serially connected between the low-pressure inlet of the 3rd interface of cross valve and compressor.
2. according to the heat pump air conditioner of the described band defrost function of claim 1, it is characterized in that the next door of described first heat exchanger is provided with the first heat exchange fan (7).
3. according to the heat pump air conditioner of the described band defrost function of claim 1, it is characterized in that the next door of described second heat exchanger is provided with the second heat exchange fan (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202035081U CN201297814Y (en) | 2008-11-12 | 2008-11-12 | A heat pump air-conditioner with defrosting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202035081U CN201297814Y (en) | 2008-11-12 | 2008-11-12 | A heat pump air-conditioner with defrosting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297814Y true CN201297814Y (en) | 2009-08-26 |
Family
ID=41043795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202035081U Expired - Fee Related CN201297814Y (en) | 2008-11-12 | 2008-11-12 | A heat pump air-conditioner with defrosting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297814Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018233259A1 (en) * | 2017-06-19 | 2018-12-27 | 格力电器（武汉）有限公司 | Electric vehicle, electric vehicle heat pump air conditioner assembly and control method thereof |
-
2008
- 2008-11-12 CN CNU2008202035081U patent/CN201297814Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018233259A1 (en) * | 2017-06-19 | 2018-12-27 | 格力电器（武汉）有限公司 | Electric vehicle, electric vehicle heat pump air conditioner assembly and control method thereof |
| US11254186B2 (en) | 2017-06-19 | 2022-02-22 | Gree Electric Appliances (Wuhan) Co., Ltd | Electric vehicle, heat pump air conditioner assembly for electric vehicle, and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. Assignor: Meidi Electric Appliances Co., Ltd., Guangdong Contract record no.: 2011440001082 Denomination of utility model: A heat pump air-conditioner with defrosting function Granted publication date: 20090826 License type: Exclusive License Record date: 20111219 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20131112 |