CN203907965U - An air-conditioner heat exchange system - Google Patents

An air-conditioner heat exchange system Download PDF

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Publication number
CN203907965U
CN203907965U CN201420220145.8U CN201420220145U CN203907965U CN 203907965 U CN203907965 U CN 203907965U CN 201420220145 U CN201420220145 U CN 201420220145U CN 203907965 U CN203907965 U CN 203907965U
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China
Prior art keywords
air
conditioner
heat exchange
heat exchanger
outdoor
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CN201420220145.8U
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Chinese (zh)
Inventor
杨瑞林
徐志亮
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Guangdong Midea Group Wuhu Air Conditioning Equipment Co Ltd
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Guangdong Midea Group Wuhu Air Conditioning Equipment Co Ltd
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Abstract

The utility model discloses an air-conditioner heat exchange system comprising a compressor (1), an outdoor heat exchanger (2), an indoor heat exchanger (3), a throttling device (4) and an electromagnetic four-way valve (5). The outdoor heat exchanger (2) comprises a plurality of heat exchange branches connected in parallel. The air-conditioner heat exchange system is characterized in that the heat exchange branches are distributed from top to bottom along the outdoor heat exchanger and, except for the bottommost heat exchange branch, the heat exchange branches are provided with electromagnetic valves at the inlets. According to the technical scheme, the problems of incomplete defrosting and long defrosting period of the bottom of an outdoor heat exchanger are solved, the heat efficiency of an air-conditioner is increased, the user comfort of using the air-conditioner in a low-temperature environment is improved and the requirements of users are met.

Description

A kind of air-conditioner heat-exchange system
Technical field
The utility model belongs to the technical field of the apparatus of air conditioning.Specifically, the utility model relates to heat pump type air conditioner heat-exchange system.
Background technology
In the prior art, heat pump type air conditioner system is under low temperature environment when heating operation, and outdoor heat converter is understood frosting conventionally, affects the efficiency of heat exchange.
Because the temperature at outdoor heat converter top and middle part is higher than bottom, frosting is thinner, and bottom temp is lower, and frosting is thicker.Therefore, the top of outdoor heat converter and middle part defrost are very fast, and bottom defrost is slower; And the water flowing down when the defrost of top can amass in outdoor heat exchanger bottom, cause that bottom defrost is not easy totally, defrost periods is longer, go round and begin again, bottom frosting is more and more thicker, vicious circle, cause heating capacity decline, air-conditioner air outlet temperature to reduce, affect user's comfortableness, client is more to the complaint of this problem.
Summary of the invention
The utility model provides a kind of air-conditioner heat-exchange system, its objective is that overcoming outdoor heat exchanger bottom heat exchange branch road is difficult for defrost, defect that heat exchange efficiency is low.
To achieve these goals, the technical scheme that the utility model is taked is:
Air-conditioner heat-exchange system of the present utility model, comprises compressor, outdoor heat exchanger, indoor heat exchanger and solenoid operated four-way valve, and described outdoor heat exchanger comprises the heat exchange branch road of multiple parallel connections, and multiple heat exchange are propped up curb outdoor heat exchanger and from top to bottom distributed; Except bottommost heat exchange branch road, the porch of all the other heat exchange branch roads all arranges magnetic valve.
Described magnetic valve is all connected with the ECU of air-conditioner by control circuit.
Outdoor pipe temperature sensor is set in outdoor heat converter exit.
Described outdoor pipe temperature sensor is connected with the ECU of air-conditioner by control circuit.
The utility model adopts technique scheme, solves the problem that the defrost of outdoor heat converter bottom is clean, defrost periods is long, improves the thermal efficiency of air-conditioner, improves user simultaneously and use under low temperature environment the comfortableness of air-conditioning, meets user's demand.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure, be labeled as:
1, compressor, 2, outdoor heat exchanger, 3, indoor heat exchanger, 4, throttling arrangement, 5, solenoid operated four-way valve, 601, magnetic valve, 602, magnetic valve, 7, outdoor pipe temperature sensor.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present utility model, technical scheme.
Air-conditioner heat-exchange system of the present utility model as shown in Figure 1, can improve air conditioner low temperature heating amount.This system comprises compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3, throttling arrangement 4, and solenoid operated four-way valve 5.Outdoor heat exchanger 2 comprises the heat exchange branch road of multiple parallel connections.Solid arrow in Fig. 1, refrigerant flow direction while representing refrigeration and defrost; The flow direction of refrigerant when dotted arrow represents to heat.Freeze, heat and the conversion of defrost working method by solenoid operated four-way valve 5.
Overcome in order to solve the problem that prior art exists and to overcome its defect, realizing the goal of the invention that outdoor heat exchanger bottom is difficult for defrost, defect that heat exchange efficiency is low, the technical scheme that the utility model is taked is:
Air-conditioner heat-exchange system of the present utility model, multiple heat exchange are propped up curb outdoor heat exchanger and are from top to bottom distributed; Except bottommost heat exchange branch road, the porch of all the other heat exchange branch roads all arranges magnetic valve.Be magnetic valve 601, the magnetic valve 602 in Fig. 1 ... Deng.
The utility model is arranged to conventional chamber outer heat-exchanger the heat exchange branch road of multiple parallel connections, and except bottommost heat exchange branch road, the porch of all the other heat exchange branch roads all arranges magnetic valve, and described magnetic valve is all connected with the ECU of air-conditioner by control circuit.By ECU control with conducting to multiple magnetic valve cut-offs of air-conditioner, improve the defrost ability of outdoor heat exchanger 2 bottoms, i.e. the defrost ability at balanced each position, the on the whole defrost of accelerating chamber external heat exchanger 2.
In outdoor heat converter 2 exits, outdoor pipe temperature sensor 7 is set.Described outdoor pipe temperature sensor 7 is connected with the ECU of air-conditioner by control circuit.
The temperature signal being gathered according to outdoor pipe temperature sensor 7 by the ECU of air-conditioner, i.e. the situation of defrost, controls with conducting multiple magnetic valve cut-offs.
Described heat exchange branch road arranges from top to bottom along outdoor heat exchanger respectively.Be magnetic valve 601, the magnetic valve 602 in Fig. 1 ..., be separately positioned on outdoor heat exchanger 2 from top to bottom arrange heat exchange branch road porch.
Taking Fig. 1 as example, control mode of the present utility model is:
In the time of normal refrigeration, heating operation, magnetic valve 601, magnetic valve 602 ... all open;
In the time of the operation heating, when air-conditioner has just been switched to defrost, all magnetic valves of the heat exchange branch road porch of outdoor heat exchanger 2 are all in open mode, solenoid operated four-way valve 5 commutates, the refrigerant of the HTHP compressing through compressor 1 enters in outdoor heat exchanger 2, and air-conditioner starts to carry out defrost; Refrigerant carries out condensing cooling in this process, becomes the cold-producing medium of temperature in high pressure; Outdoor pipe temperature sensor 7 detects the exit temperature of outdoor heat exchanger 2.
Because the temperature at outdoor heat converter top and middle part is higher than bottom, frosting is thinner, and bottom temp is lower, and frosting is thicker, causes the top of outdoor heat exchanger 2 and middle part defrost very fast, and bottom defrost is slower;
When the exit temperature of the outdoor heat exchanger 2 detecting when outdoor pipe temperature sensor 7 reaches the first preset value (as 5 DEG C), judge that outdoor heat exchanger 2 is except bottom heat exchange branch road, all the other heat exchange branch road defrosts are complete, magnetic valve 601, magnetic valve 602 ... close simultaneously; At this moment all flows of system all flow to the bottom heat exchange branch road of outdoor heat exchanger 2, the refrigerant of HTHP is concentrated and flowed to bottom, bottom cold medium flux increases rapidly, and the heat bringing increases, and the frosting of bottom is melted quickly by absorbing more heat, and thoroughly defrost is clean, shortened the time of defrost, the heating capacity of system has improved, and therefore the mean temperature of air-conditioner air outlet also rises, heat exchange efficiency improves, and user uses the time shorten of the anti-cold wind of air-conditioning.
When the exit temperature of the outdoor heat exchanger 2 detecting when outdoor pipe temperature sensor 7 reaches the second preset value (as 20 DEG C), judge that defrost is complete.Solenoid operated four-way valve 5 switches to the state of heating operation again, magnetic valve 601, magnetic valve 602 ... under the control of control system, open, air-conditioner continues heating operation simultaneously.
Adopt above-mentioned control structure and control mode, improved user and use comfortableness and the satisfaction of air-conditioning.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.

Claims (4)

1. an air-conditioner heat-exchange system, comprise compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3), throttling arrangement (4) and solenoid operated four-way valve (5), described outdoor heat exchanger (2) comprises the heat exchange branch road of multiple parallel connections, it is characterized in that: multiple heat exchange are propped up curb outdoor heat exchanger and from top to bottom distributed; Except bottommost heat exchange branch road, the porch of all the other heat exchange branch roads all arranges magnetic valve.
2. according to air-conditioner heat-exchange system claimed in claim 1, it is characterized in that: described magnetic valve is all connected with the ECU of air-conditioner by control circuit.
3. according to air-conditioner heat-exchange system claimed in claim 1, it is characterized in that: in outdoor heat converter (2) exit, outdoor pipe temperature sensor (7) is set.
4. according to air-conditioner heat-exchange system claimed in claim 3, it is characterized in that: described outdoor pipe temperature sensor (7) is connected with the ECU of air-conditioner by control circuit.
CN201420220145.8U 2014-04-30 2014-04-30 An air-conditioner heat exchange system Active CN203907965U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420220145.8U CN203907965U (en) 2014-04-30 2014-04-30 An air-conditioner heat exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420220145.8U CN203907965U (en) 2014-04-30 2014-04-30 An air-conditioner heat exchange system

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106016499A (en) * 2016-05-13 2016-10-12 珠海格力电器股份有限公司 Outdoor heat exchanger, air conditioner comprising outdoor heat exchanger and control method for air conditioner
CN107178939A (en) * 2017-05-17 2017-09-19 青岛海尔空调器有限总公司 Air conditioner defrosting control method
CN107202399A (en) * 2017-05-17 2017-09-26 青岛海尔空调器有限总公司 Air conditioner defrosting control method
CN107270517A (en) * 2017-07-26 2017-10-20 美的集团武汉制冷设备有限公司 Air-conditioning system, the control device of air-conditioning system and method
CN107300266A (en) * 2017-06-12 2017-10-27 广东美的制冷设备有限公司 Air-conditioning system, the control method of air-conditioning system
CN107477926A (en) * 2017-07-26 2017-12-15 美的集团武汉制冷设备有限公司 Air-conditioning system, the control device of air-conditioning system and method
CN107477821A (en) * 2017-07-26 2017-12-15 美的集团武汉制冷设备有限公司 Air-conditioning system, the control device of air-conditioning system and method
CN109140725A (en) * 2018-08-31 2019-01-04 广东美的暖通设备有限公司 Multi-online air-conditioning system and its defrosting control method
CN109373514A (en) * 2018-11-19 2019-02-22 青岛海尔空调电子有限公司 A kind of air-conditioner outdoor unit defrosting control method
CN110762746A (en) * 2018-07-10 2020-02-07 青岛海尔空调电子有限公司 Air conditioner and defrosting control method thereof
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
WO2020233116A1 (en) * 2019-05-17 2020-11-26 青岛海尔空调电子有限公司 Air conditioner defrosting control method

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106016499A (en) * 2016-05-13 2016-10-12 珠海格力电器股份有限公司 Outdoor heat exchanger, air conditioner comprising outdoor heat exchanger and control method for air conditioner
CN107178939A (en) * 2017-05-17 2017-09-19 青岛海尔空调器有限总公司 Air conditioner defrosting control method
CN107202399A (en) * 2017-05-17 2017-09-26 青岛海尔空调器有限总公司 Air conditioner defrosting control method
CN107300266B (en) * 2017-06-12 2019-10-15 广东美的制冷设备有限公司 Air-conditioning system, the control method of air-conditioning system
CN107300266A (en) * 2017-06-12 2017-10-27 广东美的制冷设备有限公司 Air-conditioning system, the control method of air-conditioning system
CN107477926B (en) * 2017-07-26 2020-11-20 美的集团武汉制冷设备有限公司 Air conditioning system, and control device and method of air conditioning system
CN107477821A (en) * 2017-07-26 2017-12-15 美的集团武汉制冷设备有限公司 Air-conditioning system, the control device of air-conditioning system and method
CN107477926A (en) * 2017-07-26 2017-12-15 美的集团武汉制冷设备有限公司 Air-conditioning system, the control device of air-conditioning system and method
CN107270517A (en) * 2017-07-26 2017-10-20 美的集团武汉制冷设备有限公司 Air-conditioning system, the control device of air-conditioning system and method
CN110762746A (en) * 2018-07-10 2020-02-07 青岛海尔空调电子有限公司 Air conditioner and defrosting control method thereof
CN110762746B (en) * 2018-07-10 2021-05-25 青岛海尔空调电子有限公司 Air conditioner and defrosting control method thereof
CN109140725A (en) * 2018-08-31 2019-01-04 广东美的暖通设备有限公司 Multi-online air-conditioning system and its defrosting control method
CN109140725B (en) * 2018-08-31 2021-01-05 广东美的暖通设备有限公司 Multi-split air conditioning system and defrosting control method thereof
CN109373514A (en) * 2018-11-19 2019-02-22 青岛海尔空调电子有限公司 A kind of air-conditioner outdoor unit defrosting control method
CN109373514B (en) * 2018-11-19 2021-07-23 青岛海尔空调电子有限公司 Defrosting control method for outdoor unit of air conditioner
WO2020233116A1 (en) * 2019-05-17 2020-11-26 青岛海尔空调电子有限公司 Air conditioner defrosting control method
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

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