CN102654337A - Control method of electronic expansion valve in air conditioner - Google Patents

Control method of electronic expansion valve in air conditioner Download PDF

Info

Publication number
CN102654337A
CN102654337A CN2012101414880A CN201210141488A CN102654337A CN 102654337 A CN102654337 A CN 102654337A CN 2012101414880 A CN2012101414880 A CN 2012101414880A CN 201210141488 A CN201210141488 A CN 201210141488A CN 102654337 A CN102654337 A CN 102654337A
Authority
CN
China
Prior art keywords
expansion valve
aperture
heating
electric expansion
control method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012101414880A
Other languages
Chinese (zh)
Other versions
CN102654337B (en
Inventor
王友宁
张明杰
刘丙磊
吴丽琴
王慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Group Corp
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Haier Group Corp filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN201210141488.0A priority Critical patent/CN102654337B/en
Publication of CN102654337A publication Critical patent/CN102654337A/en
Application granted granted Critical
Publication of CN102654337B publication Critical patent/CN102654337B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method of an electronic expansion valve in an air conditioner. The control method comprises the steps of: after the air conditioner finishes defrosting and is switched to heating again, averaging the stable opening degrees of at least two times of heating before this time of heating of the electronic expansion valve to obtain estimated opening degree; when the flow rate of the electronic expansion valve needs to be adjusted during the operation of this time of heating, firstly adjusting the opening degree of the electronic expansion valve directly to be the estimated opening degree; and then, adjusting the estimated opening degree to be target opening degree, wherein the target opening degree of this time of heating and the stable opening degrees of at least two times of heating before this time of heating are opening degrees of the electronic expansion valve when the degree of superheat of an outlet of an evaporator in the air conditioner reaches the set degree of superheat. Therefore, the time needed by the air conditioner which reaches the best running state after every time of defrosting can be shortened.

Description

Electronic Expansion Valve Control method in the air-conditioner
Technical field
The present invention relates to electronic Expansion Valve Control method in a kind of air-conditioner.
Background technology
Air-conditioner (especially transducer air conditioning) adopts electric expansion valve as restricting element; When the air conditioner heat-production operation has the situation of defrosting; Because when defrosting, great changes have taken place in the exploitation of electric expansion valve, get into when heating again after each air-conditioner defrosting; Electric expansion valve need restart to be adjusted to the optimal flow rate state from new position, and it is longer that each defrosting back air-conditioner reaches optimal operational condition.
Publication number is 101509693 Chinese patent, discloses a kind of control method of frequency conversion heat pump outdoor machine of air-conditioner electronic expansion valve, may further comprise the steps: in (1) microprocessor receives confidential ask the signal that heats after, electric expansion valve (6) is resetted; (2) compressor of air conditioner (1) starts, and behind low frequency running 3~6MIN, transfers the target frequency running to, and this moment, microprocessor was transferred to the aperture of electric expansion valve (6) on 150~450 apertures; (3) electric expansion valve (6) begins the temperature that every 15S detects primary transducer after keeping 120S on 150~450 apertures; (4) the every 30S of microprocessor once presses TC >=TE or TC to the aperture of electric expansion valve (6).Spent overlong time when it still exists electric expansion valve to restart to be adjusted to the optimal flow rate state.
Summary of the invention
To the problem that exists in the correlation technique, the object of the present invention is to provide electronic Expansion Valve Control method in a kind of air-conditioner, to shorten the time that each defrosting back air-conditioner reaches optimal operational condition.
For realizing above-mentioned purpose; The invention provides electronic Expansion Valve Control method in a kind of air-conditioner; Comprise: finish to change over to again when heating in air-conditioner defrosting, at least twice the stable aperture heat under of electric expansion valve this heats before averaged, estimate aperture with acquisition; When during this heating operation, need regulating the flow of electric expansion valve, at first the aperture of electric expansion valve directly is adjusted to and estimates aperture, be adjusted to the target aperture from estimating aperture then; Wherein, the stable aperture during said at least twice before the target aperture during this heats and this heat heats, the aperture that is had when reaching the setting degree of superheat for electric expansion valve degree of superheat of evaporator outlet in air-conditioner.
Preferably, this at least twice heating down in heating at every turn, electric expansion valve has stable aperture when starting 10 or 15 minutes that pick up counting from heat at every turn.
Preferably, this at least twice heating down in heating at every turn, electric expansion valve has stable aperture when starting 20 or 30 minutes that pick up counting from heat at every turn.
Preferably, during after heating startup this this 2 to 4 minutes, carry out described aperture and be adjusted to this and heat the target aperture that is obtained when starting electric expansion valve.
Preferably, air-conditioner is a transducer air conditioning.
Useful technique effect of the present invention is: get into when heating again after each air-conditioner defrosting; According to preceding when heating several times the mean value of the stable aperture of electric expansion valve obtain to estimate aperture; Electric expansion valve is begun to be adjusted to the target aperture from estimating aperture, reach the spent time of optimal operational condition thereby shortened each defrosting back air-conditioner effectively.
Description of drawings
Fig. 1 is the flow chart of electronic Expansion Valve Control method in the air-conditioner of the present invention.
The specific embodiment
Below referring to accompanying drawing the specific embodiment of control method of the present invention is described.
Referring to Fig. 1, electronic Expansion Valve Control method in the air-conditioner of the present invention, as the restricting element in the refrigerant circulation circuit of air-conditioner, control method of the present invention comprises the steps: air-conditioner wherein of the present invention with electric expansion valve
Step S101; Finish to change over to again when heating in air-conditioner defrosting; At least twice the stable aperture heat under of electric expansion valve before this heats averaged to obtain to estimate aperture; Wherein estimating aperture and promptly can equal above-mentioned mean value, also can be other values that certain deviation (for example, than mean value big 5% or little by 5%) is arranged with respect to the mean value that is calculated;
Step S102 when during this heating operation, need regulating the flow of electric expansion valve, at first directly is adjusted to the aperture of estimating that step S101 obtained with the aperture of electric expansion valve, that is, and and to estimate aperture as initial opening;
Step S103, the aperture of regulating electric expansion valve;
Does step S104 judge that the electronic expansion valve opening after regulating reaches the target aperture? If judged result is " being ", then changes step S105 over to, otherwise change step S103 over to;
Step S105, the electronic expansion valve regulation finishes.
Therefore, finish to change over to when needing to regulate the flow of electric expansion valve after heating at air-conditioner defrosting, control method of the present invention is to begin the aperture of electric expansion valve is regulated from estimating aperture, satisfies the target aperture until aperture is adjusted to.Thus, air-conditioner reached the spent time of optimal operational condition after the present invention had shortened each defrosting effectively.
It may be noted that described this target aperture in heating is: electric expansion valve degree of superheat of evaporator outlet in air-conditioner reaches the aperture that is had when setting the degree of superheat; Said at least twice heating before this heats, the stable aperture of electric expansion valve is: the degree of superheat of evaporator outlet reaches the aperture that electric expansion valve is had when setting the degree of superheat in air-conditioner.Obviously, the implication of target aperture and stable aperture is identical, just just distinguishes for the ease of describing.
In a concrete embodiment, at every turn heating down in said at least twice heats, electric expansion valve is to stablize aperture heat the aperture that has when starting 10 minutes that pick up counting from this at every turn; Then, from said at least twice heat heat at every turn take out an electric expansion valve stable aperture; Then, these stable apertures of taking out are averaged to obtain to estimate aperture; Follow again, during after this heats startup 2 to 4 minutes, the aperture of electric expansion valve directly is adjusted to this heats the aperture of estimating that is obtained when starting; Afterwards, begin the aperture of electric expansion valve is regulated until reaching the target aperture from estimating aperture.Certainly, in other embodiments, as the alternative embodiment of aforesaid " 10 minutes ", electric expansion valve has met and has stablized the condition of aperture heating the aperture that is had when starting 15 minutes of having begun or 20 minutes or 30 minutes.
Control method of the present invention is applicable to: with any air-conditioner of electric expansion valve as restricting element in the refrigerant circulation circuit, but as optimal way, this air-conditioner can be transducer air conditioning.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (5)

1. electronic Expansion Valve Control method in the air-conditioner is characterized in that, comprising:
Finish to change over to again when heating in the defrosting of said air-conditioner, at least twice the stable aperture heat under of said electric expansion valve this heats before averaged, estimate aperture with acquisition;
When during this heating operation, needing to regulate the flow of said electric expansion valve, at first the aperture with said electric expansion valve directly is adjusted to the said aperture of estimating, and is adjusted to the target aperture from the said aperture of estimating then,
Wherein, Said stable aperture during before said this said target aperture and this in heating heats said at least twice heats reaches the aperture that is had when setting the degree of superheat for the degree of superheat of said electric expansion valve evaporator outlet in said air-conditioner.
2. control method according to claim 1 is characterized in that,
At every turn heating down in said at least twice heats, said electric expansion valve has stable aperture when starting 10 or 15 minutes that pick up counting from said heating at every turn.
3. control method according to claim 1 is characterized in that,
At every turn heating down in said at least twice heats, said electric expansion valve has stable aperture when starting 20 or 30 minutes that pick up counting from said heating at every turn.
4. according to each described control method among the claim 1-3, it is characterized in that,
When said these after heating startup 2 to 4 minutes, just carry out described aperture and directly be adjusted to this and heat the aperture of estimating that is obtained when starting said electric expansion valve.
5. according to each described control method among the claim 1-3, it is characterized in that,
Said air-conditioner is a transducer air conditioning.
CN201210141488.0A 2012-05-09 2012-05-09 The control method of electric expansion valve in air-conditioner Active CN102654337B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210141488.0A CN102654337B (en) 2012-05-09 2012-05-09 The control method of electric expansion valve in air-conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210141488.0A CN102654337B (en) 2012-05-09 2012-05-09 The control method of electric expansion valve in air-conditioner

Publications (2)

Publication Number Publication Date
CN102654337A true CN102654337A (en) 2012-09-05
CN102654337B CN102654337B (en) 2016-04-27

Family

ID=46730002

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210141488.0A Active CN102654337B (en) 2012-05-09 2012-05-09 The control method of electric expansion valve in air-conditioner

Country Status (1)

Country Link
CN (1) CN102654337B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110792A (en) * 2014-05-30 2014-10-22 美的集团股份有限公司 Control method and device for air conditioning system
CN104154630A (en) * 2014-07-22 2014-11-19 美的集团武汉制冷设备有限公司 Air conditioning system control method and control device
CN105157292A (en) * 2015-07-06 2015-12-16 重庆美的通用制冷设备有限公司 Control method and device for electronic expansion valves of air cooling screw unit
CN106062486A (en) * 2014-05-30 2016-10-26 夏普株式会社 Air conditioner and air conditioner control method
CN107023945A (en) * 2017-04-01 2017-08-08 青岛海尔空调电子有限公司 Air-conditioning system and the control method for air-conditioning system
CN108375170A (en) * 2018-02-12 2018-08-07 海信(山东)空调有限公司 A kind of control method of electric expansion valve, device and air conditioner
CN110762915A (en) * 2019-10-31 2020-02-07 南开大学 Intelligent defrosting method of refrigeration system based on opening degree of electronic expansion valve
CN112413937A (en) * 2020-11-23 2021-02-26 珠海格力电器股份有限公司 Water chilling unit and electronic expansion valve control method, device and system thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101532705A (en) * 2009-04-21 2009-09-16 海信(山东)空调有限公司 Cold and warm type frequency conversion air conditioner and defrosting method thereof
CN102419041A (en) * 2011-12-13 2012-04-18 Tcl空调器(中山)有限公司 Throttle opening control method for variable frequency air conditioner
CN104634026A (en) * 2015-01-12 2015-05-20 贝莱特空调有限公司 Method for controlling electronic expansion valve in air conditioner system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101532705A (en) * 2009-04-21 2009-09-16 海信(山东)空调有限公司 Cold and warm type frequency conversion air conditioner and defrosting method thereof
CN102419041A (en) * 2011-12-13 2012-04-18 Tcl空调器(中山)有限公司 Throttle opening control method for variable frequency air conditioner
CN104634026A (en) * 2015-01-12 2015-05-20 贝莱特空调有限公司 Method for controlling electronic expansion valve in air conditioner system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106062486B (en) * 2014-05-30 2019-09-03 夏普株式会社 The control method of air conditioner and air conditioner
CN106062486A (en) * 2014-05-30 2016-10-26 夏普株式会社 Air conditioner and air conditioner control method
CN104110792B (en) * 2014-05-30 2017-02-08 美的集团股份有限公司 Control method and device for air conditioning system
CN104110792A (en) * 2014-05-30 2014-10-22 美的集团股份有限公司 Control method and device for air conditioning system
CN104154630A (en) * 2014-07-22 2014-11-19 美的集团武汉制冷设备有限公司 Air conditioning system control method and control device
CN104154630B (en) * 2014-07-22 2017-05-24 美的集团武汉制冷设备有限公司 Air conditioning system control method and control device
CN105157292A (en) * 2015-07-06 2015-12-16 重庆美的通用制冷设备有限公司 Control method and device for electronic expansion valves of air cooling screw unit
CN105157292B (en) * 2015-07-06 2017-08-29 重庆美的通用制冷设备有限公司 The control method for electronic expansion valve and device of air-cooled screw unit
CN107023945A (en) * 2017-04-01 2017-08-08 青岛海尔空调电子有限公司 Air-conditioning system and the control method for air-conditioning system
CN108375170A (en) * 2018-02-12 2018-08-07 海信(山东)空调有限公司 A kind of control method of electric expansion valve, device and air conditioner
CN110762915A (en) * 2019-10-31 2020-02-07 南开大学 Intelligent defrosting method of refrigeration system based on opening degree of electronic expansion valve
CN110762915B (en) * 2019-10-31 2021-03-19 南开大学 Intelligent defrosting method of refrigeration system based on opening degree of electronic expansion valve
CN112413937A (en) * 2020-11-23 2021-02-26 珠海格力电器股份有限公司 Water chilling unit and electronic expansion valve control method, device and system thereof

Also Published As

Publication number Publication date
CN102654337B (en) 2016-04-27

Similar Documents

Publication Publication Date Title
CN102654337A (en) Control method of electronic expansion valve in air conditioner
CN107084491B (en) Control method and device for electric heater of air conditioner outdoor unit
CN102147174B (en) Method for controlling electronic expansion valve of variable-frequency air conditioner
CN103486689B (en) The control method of air-conditioner and device
CN102654338B (en) The control method of electric expansion valve in air-conditioner
CN109357440B (en) A kind of multi-connected machine heating method for controlling oil return and multi-gang air-conditioner device
CN109210696B (en) Control method for anti-freezing protection of air conditioner
AU2014253572B2 (en) Air-conditioning apparatus
CN105588296B (en) A kind of control method and control device of convertible frequency air-conditioner
CN109114758B (en) Air conditioner system control method and air conditioner
CN104132421A (en) Control method and control system for air conditioner
EP2873928B1 (en) Air conditioner
CN104807139A (en) Control method of air conditioner and control device
EP2873929B1 (en) Air conditioner
US11441822B2 (en) Air conditioner
EP3492837B1 (en) Refrigeration cycle device
CN208205501U (en) Oil return control system of air conditioner
CN104006445A (en) Multi-connected air conditioner and control method thereof
EP2669588A1 (en) Air conditioning system and start-up control method therefor
CN105135628A (en) Air conditioner and defrosting control method of air conditioner
CN108518818A (en) Air-conditioning sleep pattern control method and air conditioner
CN106322829B (en) Control method, system and the heat pump of heat pump system
CN110160228A (en) The control method and air conditioner of heat pump air conditioner
US20160320113A1 (en) Air conditioning apparatus
US10359209B2 (en) Air conditioning apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant