CN205065908U - Air conditioning system that defrosting in -process has lasting heat supply function - Google Patents

Air conditioning system that defrosting in -process has lasting heat supply function Download PDF

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Publication number
CN205065908U
CN205065908U CN201520674963.XU CN201520674963U CN205065908U CN 205065908 U CN205065908 U CN 205065908U CN 201520674963 U CN201520674963 U CN 201520674963U CN 205065908 U CN205065908 U CN 205065908U
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China
Prior art keywords
heat exchanger
port valve
air
throttling arrangement
conditioning
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CN201520674963.XU
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Chinese (zh)
Inventor
李大伟
罗永前
魏广飞
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The utility model discloses an air conditioning system that defrosting in -process has lasting heat supply function, including outdoor heat exchanger, it is parallelly connected with the second two -port valve that the back is established ties to outdoor heat exchanger's rear end establish ties in proper order the 2nd throttling arrangement, supplementary heat exchanger, the 2nd throttling arrangement and supplementary heat exchanger, and the second two -port valve forms second bypass branch road, a throttling arrangement and outdoor heat exchanger establish ties, a throttling arrangement's the parallelly connected first two -port valve in both ends, and first two -port valve forms first bypass branch road. The utility model provides an air conditioning system sets up supplementary heat exchanger and supplementary fan, and during defrosting program run, outdoor heat exchanger defrosts, and supplementary heat exchanger acts as the evaporimeter, realizes that the air conditioner heats the function to guarantee that the air conditioner can last the heat supply at the defrosting in -process, make the user experience when using the air conditioner winter better, strengthened market competitiveness of the product.

Description

There is in a kind of defrost process the air-conditioning system of lasting heat supply function
Technical field
The utility model relates to air-conditioning system field, discloses a kind of air-conditioning system that can continue heat supply in air-conditioner defrosting process more specifically.
Background technology
Existing heat supply Defrost technology, the temperature in defrost process in absorption chamber, forms reverse circulation (namely indoor become refrigerating environment), causes indoor environment to fluctuate, poor user experience.
Even if adopt newer defrost control system, be also merely able to ensure not absorb heat in environment indoor in air-conditioning heating process, but the heat supply that continues cannot be realized, the requirement of user to air-conditioning winter refrigeration can not be met.
Therefore, a kind of air-conditioning system that can continue heat supply in air-conditioner defrosting process is needed in market badly, and to ensure air-conditioning in the winter time in heating and defrosting process, indoor temperature is by the impact of defrost process.
Utility model content
An object of the present utility model is, proposes the air-conditioning system in a kind of defrost process with lasting heat supply function, and decline to solve indoor set leaving air temp in the air-conditioner defrosting process that exists in prior art, indoor temperature reduces, the problem of poor user experience.
For reaching this object, the utility model by the following technical solutions:
There is in a kind of defrost process the air-conditioning system of lasting heat supply function, comprise outdoor heat exchanger, connect the second throttling arrangement, supplementary heat exchanger successively in the rear end of described outdoor heat exchanger, described second throttling arrangement and supplementary heat exchanger are in parallel with the second two-port valve after connecting, and described second two-port valve forms the second bypass branch;
First throttle device is connected with described outdoor heat exchanger, and two ends first two-port valve in parallel of described first throttle device, described first two-port valve forms the first bypass branch.
Further, the outlet side of compressor is connected to after indoor heat exchanger through four-way change-over valve, series connection first throttle device, outdoor heat exchanger, the second throttling arrangement, supplementary heat exchanger, be then connected to the suction end of described compressor by described four-way change-over valve successively.
Further, comprise and heat path and defrosting path, the refrigerant in described defrosting path from the outlet side of compressor out after get back to the suction end of described compressor successively through indoor heat exchanger, outdoor heat exchanger, the second throttling arrangement, supplementary heat exchanger;
In defrost process, enter into described outdoor heat exchanger from described indoor heat exchanger high temperature refrigerant out without throttling arrangement, refrigerant heat release defrosts to described outdoor heat exchanger, and then refrigerant enters into supplementary heat exchanger evaporation endothermic through throttling arrangement.
Further, heat described in the refrigerant in path from the outlet side of compressor out after get back to the suction end of described compressor successively through indoor heat exchanger, first throttle device, outdoor heat exchanger.
Further, during described defrosting path work, described supplementary heat exchanger, the first two-port valve, the second throttling arrangement are opened;
Described first throttle device, the second two-port valve are closed.
Further, described in heat path work time, described first throttle device, second two-port valve open;
Described supplementary heat exchanger, the first two-port valve, the second throttling arrangement are closed.
Preferably, also comprise check valve, described check valve, supplementary heat exchanger, the second throttling arrangement are in parallel with described second two-port valve after connecting successively.
Preferably, described first throttle device and the second throttling arrangement are electric expansion valve, capillary or heating power expansion valve.
Preferably, described first two-port valve and the second two-port valve are electronics two-port valve.
Further, also comprise accessory fan, described accessory fan and described supplementary heat exchanger with the use of.
The beneficial effects of the utility model are: the air-conditioning system in the utility model arranges supplementary heat exchanger and accessory fan, when defrosting program is run, outdoor heat exchanger defrosts, supplementary heat exchanger serves as evaporimeter, realize air-conditioning heating function, thus ensure that air-conditioning can continue heat supply in defrost process, make user in the winter time using air-condition time experience better, enhance the competitiveness of product in market.
Accompanying drawing explanation
Fig. 1 is the johning knot composition in the defrost process of the utility model detailed description of the invention proposition with the air-conditioning system of lasting heat supply function;
Fig. 2 is that the air-conditioning system having a lasting heat supply function in the defrost process that proposes of the utility model detailed description of the invention heats refrigerant in path and moves towards schematic diagram;
Fig. 3 be the utility model detailed description of the invention propose defrost process in have lasting heat supply function air-conditioning system defrosting path in refrigerant move towards schematic diagram.
In figure:
1, compressor; 2, fluid reservoir; 3, four-way change-over valve; 4, indoor heat exchanger; 5, indoor fan; 6, outdoor heat exchanger; 7, outdoor fan; 8, supplementary heat exchanger; 9, accessory fan; 10, the first electric expansion valve; 11, the first electronics two-port valve; 12, the second electric expansion valve; 13, the second electronics two-port valve; 14, check valve.
Detailed description of the invention
The technical solution of the utility model is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
The utility model proposes in a kind of defrost process the air-conditioning system with lasting heat supply function, in existing air-conditioning system, to connect successively in the rear end of outdoor heat exchanger the second throttling arrangement, supplementary heat exchanger, second throttling arrangement and supplementary heat exchanger are in parallel with the second two-port valve after connecting, and described second two-port valve forms the second bypass branch; First throttle device is connected with described outdoor heat exchanger, and two ends first two-port valve in parallel of described first throttle device, described first two-port valve forms the first bypass branch.Whole air-conditioning system can be divided into and heat path and defrosting path, the refrigerant in defrosting path from the outlet side of compressor out after get back to the suction end of compressor successively through indoor heat exchanger, outdoor heat exchanger, throttling arrangement, supplementary heat exchanger.
In defrost process, heat exchanger high temperature refrigerant out enters into outdoor heat exchanger without throttling arrangement indoor, and refrigerant heat release defrosts to outdoor heat exchanger, and then refrigerant enters into supplementary heat exchanger evaporation endothermic through throttling arrangement.Outdoor heat exchanger defrosts in above process, and supplementary heat exchanger uses as evaporimeter, and refrigerant carries out evaporation and heat-exchange wherein.
Heat the refrigerant in path from the outlet side of compressor out after get back to the suction end of compressor successively through indoor heat exchanger, throttling arrangement, outdoor heat exchanger.
Air-conditioning system in the utility model arranges supplementary heat exchanger and accessory fan, when defrosting program is run, outdoor heat exchanger defrosts, supplementary heat exchanger serves as evaporimeter, realize air-conditioning heating function, thus ensure that air-conditioning can continue heat supply in defrost process, make user in the winter time using air-condition time experience better, enhance the competitiveness of product in market.
Embodiment one
As shown in Figure 1, be, in a kind of defrost process of proposing of the present embodiment, there is the concrete syndeton of the air-conditioning system of lasting heat supply function.This air-conditioning system comprises compressor 1 and fluid reservoir 2, and fluid reservoir 2 is connected with compressor 1, can arrange the separating component that gas-liquid separator, oil-liquid separator etc. are necessary between the two.
In the present embodiment, the concrete syndeton of air-conditioning system is, the outlet side of compressor 1 is connected to after indoor heat exchanger 4 through four-way change-over valve 3, series connection first throttle device, outdoor heat exchanger 6, second throttling arrangement, supplementary heat exchanger 8, be then connected to the suction end of compressor 1 by four-way change-over valve 3 successively.Wherein, the first throttle device in the present embodiment is the first electric expansion valve 10, second throttling arrangement is the second electric expansion valve 12.
As further embodiment, the two ends of the first electric expansion valve 10 be arranged in parallel the first electronics two-port valve 11, second electric expansion valve 12 and supplementary heat exchanger 8 connect after in parallel with the second electronics two-port valve 13.Also include check valve 14 in the present embodiment, check valve 14, supplementary heat exchanger 8, second electric expansion valve 12 are in parallel with the second electronics two-port valve 13 after connecting successively.Meanwhile, indoor heat exchanger 4 is provided with indoor fan 5, outdoor heat exchanger 6 is provided with outdoor fan 7, supplementary heat exchanger 8 is provided with accessory fan 9, the better heat exchange of blower fan supplementary heat exchanger on each position.
As shown in Figure 3, when using said structure to carry out defrosting work, defrosting path is run, and now supplementary heat exchanger 8, accessory fan 9, first electronics two-port valve 11, second electric expansion valve 12 are opened; First electric expansion valve 10, second electronics two-port valve 13 cuts out.Refrigerant from compressor 1 gas outlet out, is got back in compressor 1 through four-way change-over valve 3, indoor heat exchanger 4, first electronics two-port valve 11, outdoor heat exchanger 6, second electric expansion valve 12, supplementary heat exchanger 8, check valve 14, four-way change-over valve 3 successively.In this process, outdoor heat exchanger 6 defrosts, and supplementary heat exchanger 8 carries out work as evaporimeter.
As shown in Figure 2, when using said structure to heat, heat path and run, the first electric expansion valve 10, second electronics two-port valve 13 is opened; Supplementary heat exchanger 8, accessory fan 9, first electronics two-port valve 11, second electric expansion valve 12 are closed.Refrigerant from the outlet side of compressor 1 out after get back to compressor 1 through four-way change-over valve 3, indoor heat exchanger 4, first electric expansion valve 10, outdoor heat exchanger 6, second electronics two-port valve 13, four-way change-over valve 3 successively.In this process, supplementary heat exchanger 8 quits work, and outdoor heat exchanger 6 carries out work as evaporimeter.
Throttling arrangement in the present embodiment is not confined to electric expansion valve, can also use the throttle part such as capillary or heating power expansion valve.
Air-conditioning system syndeton in the present embodiment, heating in path and defrosting path integration process, four-way change-over valve does not need to commutate, and can extend the service life of four-way change-over valve to a certain extent.
Embodiment two
The present embodiment is roughly the same with the air-conditioning system syndeton in embodiment one, difference is, in air-conditioning system syndeton in the present embodiment, check valve is not set, makes supplementary heat exchanger under some dislikes the condition of omiting, the effect of evaporation or condensation can be realized by ancillary chamber external heat exchanger.
While stating function in realization, the structure in the present embodiment is identical with the structure in embodiment one, and also can realize in defrost process, indoor heating air-out does not affect by defrost, and can realize the function of not shutting down defrost, Consumer's Experience is better.
Below describe know-why of the present utility model in conjunction with specific embodiments, these describe just in order to explain principle of the present utility model, can not be interpreted as the restriction to the utility model protection domain by any way.Based on explaining herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes all will fall within protection domain of the present utility model.

Claims (10)

1. there is in a defrost process air-conditioning system of lasting heat supply function, comprise outdoor heat exchanger (6), it is characterized in that: connect the second throttling arrangement, supplementary heat exchanger (8) successively in the rear end of described outdoor heat exchanger (6), described second throttling arrangement and supplementary heat exchanger (8) are in parallel with the second two-port valve after connecting, and described second two-port valve forms the second bypass branch;
First throttle device is connected with described outdoor heat exchanger (6), and two ends first two-port valve in parallel of described first throttle device, described first two-port valve forms the first bypass branch.
2. there is in defrost process according to claim 1 the air-conditioning system of lasting heat supply function, it is characterized in that: the outlet side of compressor (1) is connected to after indoor heat exchanger (4) through four-way change-over valve (3), series connection first throttle device, outdoor heat exchanger (6), the second throttling arrangement, supplementary heat exchanger (8), be then connected to the suction end of described compressor (1) by described four-way change-over valve (3) successively.
3. there is in defrost process according to claim 1 and 2 the air-conditioning system of lasting heat supply function, it is characterized in that: comprise and heat path and defrosting path, the refrigerant in described defrosting path from the outlet side of compressor (1) out after get back to the suction end of described compressor (1) successively through indoor heat exchanger (4), outdoor heat exchanger (6), the second throttling arrangement, supplementary heat exchanger (8);
In defrost process, described outdoor heat exchanger (6) is entered into without throttling arrangement from described indoor heat exchanger (4) high temperature refrigerant out, refrigerant heat release defrosts to described outdoor heat exchanger (6), and then refrigerant enters into supplementary heat exchanger (8) evaporation endothermic through throttling arrangement.
4. there is in defrost process according to claim 3 the air-conditioning system of lasting heat supply function, it is characterized in that: described in heat the refrigerant in path from the outlet side of compressor (1) out after get back to the suction end of described compressor (1) successively through indoor heat exchanger (4), first throttle device, outdoor heat exchanger (6).
5. have the air-conditioning system of lasting heat supply function in defrost process according to claim 3, it is characterized in that: during described defrosting path work, described supplementary heat exchanger (8), the first two-port valve, the second throttling arrangement are opened;
Described first throttle device, the second two-port valve are closed.
6. there is in defrost process according to claim 3 the air-conditioning system of lasting heat supply function, it is characterized in that: described in heat path work time, described first throttle device, second two-port valve open;
Described supplementary heat exchanger (8), the first two-port valve, the second throttling arrangement are closed.
7. there is in defrost process according to claim 3 the air-conditioning system of lasting heat supply function, it is characterized in that: also comprise check valve (14), described check valve (14), supplementary heat exchanger (8), the second throttling arrangement are in parallel with described second two-port valve after connecting successively.
8. there is in defrost process according to claim 1 and 2 the air-conditioning system of lasting heat supply function, it is characterized in that: described first throttle device and the second throttling arrangement are electric expansion valve, capillary or heating power expansion valve.
9. there is in defrost process according to claim 1 and 2 the air-conditioning system of lasting heat supply function, it is characterized in that: described first two-port valve and the second two-port valve are electronics two-port valve.
10. there is in defrost process according to claim 1 and 2 the air-conditioning system of lasting heat supply function, it is characterized in that: also comprise accessory fan (9), described accessory fan (9) and described supplementary heat exchanger (8) with the use of.
CN201520674963.XU 2015-09-01 2015-09-01 Air conditioning system that defrosting in -process has lasting heat supply function Active CN205065908U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066255A (en) * 2015-09-01 2015-11-18 珠海格力电器股份有限公司 Air conditioning system with continuous heat supply function in defrosting process
CN110173823A (en) * 2019-05-31 2019-08-27 广东美的制冷设备有限公司 Progress control method, control device, air conditioner and computer readable storage medium
CN111623568A (en) * 2020-04-28 2020-09-04 珠海格力电器股份有限公司 Refrigerating unit and control method thereof
CN111811035A (en) * 2020-07-22 2020-10-23 南京天加环境科技有限公司 Dehumidification and reheating unit type air conditioning system and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066255A (en) * 2015-09-01 2015-11-18 珠海格力电器股份有限公司 Air conditioning system with continuous heat supply function in defrosting process
CN110173823A (en) * 2019-05-31 2019-08-27 广东美的制冷设备有限公司 Progress control method, control device, air conditioner and computer readable storage medium
CN110173823B (en) * 2019-05-31 2021-06-29 广东美的制冷设备有限公司 Operation control method, control device, air conditioner, and computer-readable storage medium
CN111623568A (en) * 2020-04-28 2020-09-04 珠海格力电器股份有限公司 Refrigerating unit and control method thereof
CN111811035A (en) * 2020-07-22 2020-10-23 南京天加环境科技有限公司 Dehumidification and reheating unit type air conditioning system and control method thereof

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