CN201335568Y - Defrosting system for outdoor unit of air conditioner - Google Patents
Defrosting system for outdoor unit of air conditioner Download PDFInfo
- Publication number
- CN201335568Y CN201335568Y CNU2008202065316U CN200820206531U CN201335568Y CN 201335568 Y CN201335568 Y CN 201335568Y CN U2008202065316 U CNU2008202065316 U CN U2008202065316U CN 200820206531 U CN200820206531 U CN 200820206531U CN 201335568 Y CN201335568 Y CN 201335568Y
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- heat exchanger
- heat converter
- valve
- indoor heat
- outdoor heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
A defrosting system for an outdoor unit of an air conditioner comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger. The compressor is connected with the outdoor heat exchanger and the indoor heat exchanger through a four-way valve; the outdoor heat exchanger comprises more than two parts connected in series; the outdoor heat exchanger comprises an upper part and a lower part, and the upper part and the lower part are connected in series through a first electromagnetic valve and a parallel component assisting capillary; one end of the outdoor heat exchanger is connected with the a interface of the four-way valve and the other end thereof is connected with the indoor heat exchanger through an electronic expansion valve, and the other end of the indoor heat exchanger is connected with the c interface of the four-way valve through a return pipe; and a second electromagnetic valve connected with the indoor heat exchanger in parallel is connected between the return pipe and the electronic expansion valve. The defrosting system flexibly utilizes the first electromagnetic valve, the second electromagnetic valve and the electronic expansion valve, thereby shortening the defrosting period, increasing heat output, avoiding cold air in heating process and providing a comfortable living environment for users.
Description
Technical field
The utility model relates to a kind of defrost system of air-conditioner outdoor unit, mainly is applicable to field of air conditioning such as handpiece Water Chilling Units, water source/earth source heat pump unit, Teat pump boiler, recuperation of heat and swimming pool.
Background technology
Air-conditioner in the market is subjected to the restriction of outdoor environment when low-temperature heating, outdoor heat converter exists the icing phenomenon of frosting.In order to address this problem, most of type all has defrost function, but in defrost process ubiquity that defrosting cycle is long, defrosting is clean, indoor set problem such as blow a cold wind in defrost process, thereby cause the outdoor machine fan resistance to increase, air quantity diminishes, and the heat exchange resistance strengthens, and the heat exchange effect further reduces, frosting further worsens, the phenomenon that final appearance is frozen.In addition, heat exchanger freezes, and also may cause outer machine heat-transfer pipe to destroy; The more serious heat exchanger fan that may cause is frozen in the ice body, causes fan electromotor to burn out, and phenomenons such as fan blade fragmentation have influenced the reliability service of air-conditioner greatly.Therefore under the low-temperature heating situation, a kind of defrosting is clean, and the defrost system of the air-conditioner outdoor unit that defrosting time is short has indelible effect to the safe and reliable operation and the long-time high heating capacity of maintenance of whole air-conditioner.
But a kind of air-conditioning system of continuously heating is disclosed among the Chinese patent literature CN1403756C, comprise the outdoor heat exchanger that connects in regular turn, magnetic valve, compressor, four-way change-over valve, stop valve, indoor heat exchanger, stop valve, magnetic valve, also comprise the throttling arrangement and the check valve that are connected in series between outdoor heat exchanger and the stop valve, be connected in parallel on the regenerative heat exchanger at check valve two ends, also be provided with throttling arrangement in the connecting line of regenerative heat exchanger and check valve inlet end, regenerative heat exchanger also is provided with two interfaces that are connected with the magnetic valve two ends by pipeline respectively, wherein also is provided with throttling arrangement in a connecting line.This complex structure, cost cost height.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, cost is low, defrosting cycle is short, by stages comprehensively the defrosting, the defrost system of the immobilising air-conditioner outdoor unit of indoor-unit cooling-medium in defrost process is to overcome weak point of the prior art.
Press the defrost system of a kind of air-conditioner outdoor unit of this purpose design, comprise compressor, outdoor heat converter and indoor heat converter, compressor is connected with indoor heat converter with outdoor heat converter respectively by cross valve, its architectural feature is that outdoor heat converter is divided into the above series connection formation of two parts, so that every part outdoor heat converter defrosts respectively.
Described every part off-premises station heat exchanger is connected by the parallel component of first magnetic valve and assisted capillary therebetween.Outdoor heat converter is divided into two parts up and down, and an end is connected with a interface of cross valve, and the other end is connected with indoor heat converter by electric expansion valve.The indoor heat converter other end is connected with the c interface of cross valve by muffler, also is connected with second magnetic valve in parallel with indoor heat converter between muffler and the electric expansion valve.The high-pressure outlet of compressor is connected with the d interface of cross valve, and low-pressure inlet is connected with the b interface of cross valve by the low pressure receiver.
The utility model has realized shortening the function of defrosting cycle by to the applying in a flexible way of first magnetic valve, second magnetic valve, electric expansion valve, and improves heating capacity, and has avoided heating the situation of blowing a cold wind in the process, provides comfortable living environment to the user.Realize refrigeration in the normal course of operation, heat two kinds of patterns, when in the process of heating, frosting occurring, can also realize the function of substep defrosting.It is simple and reasonable, at the bottom of the cost cost, energy-conserving and environment-protective, long service life.
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 defrost system of this air-conditioner outdoor unit comprises compressor 1, outdoor heat converter 3 and indoor heat converter 7, and compressor is connected with indoor heat converter with outdoor heat converter respectively by cross valve 2.Outdoor heat converter 3 is divided into two parts up and down, and by the parallel component series connection of first magnetic valve 4 and assisted capillary 5, the one end is connected with a interface of cross valve 2 therebetween, and the other end is connected with indoor heat converter 7 by electric expansion valve 6.Indoor heat converter 7 other ends are connected with the c interface of cross valve 2 by muffler 10, also are connected with second magnetic valve 8 in parallel with indoor heat converter between muffler and the electric expansion valve.The high-pressure outlet of compressor 1 is connected with the d interface of cross valve, and low-pressure inlet is connected with the b interface of cross valve by low pressure receiver 9.
Its operation principle is:
One, refrigeration mode: this moment, first magnetic valve 4 was opened, and second magnetic valve 8 cuts out, and a of cross valve 2 and d are communicated with, and b and c are communicated with.Refrigerant flows to :-B-C-D-E-F-G-H-I-J-K-L-M-N
Two, heating mode: this moment, first magnetic valve 4 was opened, and second magnetic valve 8 cuts out, and the c of cross valve 2 and d are communicated with, and a and b are communicated with.Refrigerant flows to: A-L-K-J-I-H-G-F-E-D-C-B-M-N
Three, heat defrosting mode in the process
1) first step defrosting: this moment, first magnetic valve 4 cut out, and second magnetic valve 8 cuts out, and electric expansion valve 6 reaches maximum, and the c of cross valve 2 and d are communicated with, and a and b are communicated with.Refrigerant flows to: A-L-K-J-I-H-G-F-E-P-O-D-C-B-M-N, realize the defrosting of outdoor heat converter lower part.
2) second step defrosting: this moment, first magnetic valve 4 cut out, and second magnetic valve 8 is opened, and electric expansion valve 6 is closed, and a of cross valve 2 and d are communicated with, and b and c are communicated with.Refrigerant flows to: A-B-C-D-O-P-E-F-G-K-L-M-N, realize the defrosting of outdoor heat converter top.
Claims (5)
1. the defrost system of an air-conditioner outdoor unit, comprise compressor (1), outdoor heat converter (3) and indoor heat converter (7), compressor is connected with indoor heat converter with outdoor heat converter respectively by cross valve (2), it is characterized in that outdoor heat converter is divided into the above series connection of two parts and constitutes, so that every part outdoor heat converter defrosts respectively.
2. according to the defrost system of the described air-conditioner outdoor unit of claim 1, it is characterized in that described every part off-premises station heat exchanger passes through the parallel component series connection of first magnetic valve (4) and assisted capillary (5) therebetween.
3. according to the defrost system of the described air-conditioner outdoor unit of claim 2, it is characterized in that described outdoor heat converter is divided into two parts up and down, an end is connected with a interface of cross valve, and the other end is connected with indoor heat converter by electric expansion valve (6).
4. according to the defrost system of the described air-conditioner outdoor unit of claim 3, it is characterized in that the described indoor heat converter other end is connected with the c interface of cross valve by muffler (10), also be connected with second magnetic valve (8) in parallel between muffler and the electric expansion valve with indoor heat converter.
5. according to the defrost system of the described air-conditioner outdoor unit of claim 1, it is characterized in that the high-pressure outlet of described compressor is connected with the d interface of cross valve, low-pressure inlet is connected with the b interface of cross valve by low pressure receiver (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202065316U CN201335568Y (en) | 2008-12-27 | 2008-12-27 | Defrosting system for outdoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202065316U CN201335568Y (en) | 2008-12-27 | 2008-12-27 | Defrosting system for outdoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
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| CN201335568Y true CN201335568Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202065316U Expired - Lifetime CN201335568Y (en) | 2008-12-27 | 2008-12-27 | Defrosting system for outdoor unit of air conditioner |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245150A (en) * | 2013-05-15 | 2013-08-14 | 东南大学 | Air source heat pump defrosting device |
| CN104132474A (en) * | 2014-07-14 | 2014-11-05 | 珠海格力电器股份有限公司 | Environment conditioning device for low-temperature laboratory |
| CN104515319A (en) * | 2013-09-30 | 2015-04-15 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN104633871A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Control method of air conditioning system |
| CN104728951A (en) * | 2015-04-13 | 2015-06-24 | 宁波奥克斯电气有限公司 | Multi-connected air-conditioner unit outdoor unit module and method for heating and defrosting at the same time through same |
| CN104832989A (en) * | 2015-04-29 | 2015-08-12 | 广东美的制冷设备有限公司 | Air conditioner and control method for air conditioner |
| CN105003982A (en) * | 2015-08-04 | 2015-10-28 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN105402937A (en) * | 2015-12-22 | 2016-03-16 | 广东志高暖通设备股份有限公司 | Air-conditioning system |
| CN105485808A (en) * | 2015-12-22 | 2016-04-13 | 广东志高暖通设备股份有限公司 | Air conditioning system |
| CN106766336A (en) * | 2017-01-20 | 2017-05-31 | 杨胜东 | A kind of online defrosting air source heat pump system |
| CN109631442A (en) * | 2018-12-20 | 2019-04-16 | 广州美的华凌冰箱有限公司 | Refrigerating plant, the control method of refrigerating plant, system and storage medium |
| CN110173821A (en) * | 2019-05-29 | 2019-08-27 | 南京天加环境科技有限公司 | A kind of multi-line system and its control method that can improve defrosting effect |
| CN110762678A (en) * | 2019-11-28 | 2020-02-07 | 无锡同方人工环境有限公司 | Air-cooled heat exchanger assembly and load-adjustable air conditioning system |
| CN110926051A (en) * | 2019-11-21 | 2020-03-27 | 广东美的暖通设备有限公司 | Outdoor heat exchanger assembly, air conditioning system and defrosting method thereof |
| CN112424541A (en) * | 2018-07-27 | 2021-02-26 | 三菱电机株式会社 | Refrigeration cycle device |
| CN113518886A (en) * | 2019-03-06 | 2021-10-19 | 三菱电机株式会社 | Refrigeration cycle device |
-
2008
- 2008-12-27 CN CNU2008202065316U patent/CN201335568Y/en not_active Expired - Lifetime
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245150A (en) * | 2013-05-15 | 2013-08-14 | 东南大学 | Air source heat pump defrosting device |
| CN104515319B (en) * | 2013-09-30 | 2017-04-12 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104515319A (en) * | 2013-09-30 | 2015-04-15 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104633871A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Control method of air conditioning system |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN104633871B (en) * | 2013-11-14 | 2017-07-25 | 珠海格力电器股份有限公司 | The control method of air-conditioning system |
| CN104132474B (en) * | 2014-07-14 | 2017-01-25 | 珠海格力电器股份有限公司 | Environment conditioning device for low-temperature laboratory |
| CN104132474A (en) * | 2014-07-14 | 2014-11-05 | 珠海格力电器股份有限公司 | Environment conditioning device for low-temperature laboratory |
| CN104728951A (en) * | 2015-04-13 | 2015-06-24 | 宁波奥克斯电气有限公司 | Multi-connected air-conditioner unit outdoor unit module and method for heating and defrosting at the same time through same |
| CN104728951B (en) * | 2015-04-13 | 2017-09-12 | 宁波奥克斯电气股份有限公司 | The outdoor unit modules of multi-connected machine and the method for being heated and being defrosted simultaneously using the module |
| CN104832989A (en) * | 2015-04-29 | 2015-08-12 | 广东美的制冷设备有限公司 | Air conditioner and control method for air conditioner |
| CN104832989B (en) * | 2015-04-29 | 2018-01-02 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN105003982A (en) * | 2015-08-04 | 2015-10-28 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN105003982B (en) * | 2015-08-04 | 2018-04-13 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning system |
| CN105402937A (en) * | 2015-12-22 | 2016-03-16 | 广东志高暖通设备股份有限公司 | Air-conditioning system |
| CN105485808A (en) * | 2015-12-22 | 2016-04-13 | 广东志高暖通设备股份有限公司 | Air conditioning system |
| CN105402937B (en) * | 2015-12-22 | 2019-01-15 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning system |
| CN106766336A (en) * | 2017-01-20 | 2017-05-31 | 杨胜东 | A kind of online defrosting air source heat pump system |
| CN112424541A (en) * | 2018-07-27 | 2021-02-26 | 三菱电机株式会社 | Refrigeration cycle device |
| CN112424541B (en) * | 2018-07-27 | 2022-05-17 | 三菱电机株式会社 | Refrigeration cycle device |
| CN109631442A (en) * | 2018-12-20 | 2019-04-16 | 广州美的华凌冰箱有限公司 | Refrigerating plant, the control method of refrigerating plant, system and storage medium |
| CN113518886A (en) * | 2019-03-06 | 2021-10-19 | 三菱电机株式会社 | Refrigeration cycle device |
| CN113518886B (en) * | 2019-03-06 | 2022-11-11 | 三菱电机株式会社 | Refrigeration cycle device |
| CN110173821A (en) * | 2019-05-29 | 2019-08-27 | 南京天加环境科技有限公司 | A kind of multi-line system and its control method that can improve defrosting effect |
| CN110926051A (en) * | 2019-11-21 | 2020-03-27 | 广东美的暖通设备有限公司 | Outdoor heat exchanger assembly, air conditioning system and defrosting method thereof |
| CN110762678A (en) * | 2019-11-28 | 2020-02-07 | 无锡同方人工环境有限公司 | Air-cooled heat exchanger assembly and load-adjustable air conditioning system |
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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: 20140113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 FOSHAN, GUANGDONG PROVINCE TO: 528311 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140113 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: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |
|
| CX01 | Expiry of patent term |