CN105987483A - Novel air conditioner defrosting control system - Google Patents
Novel air conditioner defrosting control system Download PDFInfo
- Publication number
- CN105987483A CN105987483A CN201510062061.5A CN201510062061A CN105987483A CN 105987483 A CN105987483 A CN 105987483A CN 201510062061 A CN201510062061 A CN 201510062061A CN 105987483 A CN105987483 A CN 105987483A
- Authority
- CN
- China
- Prior art keywords
- control system
- indoor set
- defrosting control
- bypass
- expansion valve
- 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.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a novel air conditioner defrosting control system. The invention aims at providing an improved novel air conditioner defrosting control system. The defrosting control system comprises a multi-type outdoor unit and a plurality of indoor units connected with the multi-type outdoor unit, wherein the multi-type outdoor unit is connected with the indoor units by virtue of a main pipeline, a branch pipeline is connected between the main pipeline and the indoor units, the indoor units are connected with an electronic expansion valve in series, the electronic expansion valve is arranged on the branch pipeline, the defrosting control system also comprises a bypass electromagnetic valve, the bypass electromagnetic valve is connected with the electronic expansion valve and the indoor units in parallel, and the bypass electromagnetic valve is connected with the branch pipeline by virtue of the bypass pipeline. By adopting the defrosting control system, total amount of defrosting of the indoor units is reduced by assisting refrigerating and heating by virtue of the bypass pipeline and the bypass electromagnetic valve, and the defrosting control system has the characteristics of simple structure, convenience and practicability.
Description
Technical field
The present invention relates to steam compression type refrigeration field of air conditioning, refer more particularly to a kind of air conditioner oil return defrosting and control
System.
Background technology
Under air-conditioning heating pattern, frosting is inevitable, once enters defrost, and interior machine switches to refrigeration mould
Formula, not only affects indoor comfort, and causes efficiency to decline.In order to reduce defrosting time, when entrance removes
When frost runs, the electric expansion valve of interior machine owing to not opening can be opened to reduce defrosting time.For multi-connected machine
System, installs more and more longer in particular with multiple on-line system pipe arrangement, and it is also necessary that oil return runs, when being
System runs a period of time, is necessary for performing oil return operating, it is ensured that the oil in system returns to outer machine from pipe arrangement.
When oil return runs, the electric expansion valve of the interior machine do not opened also is switched on.In so coolant will pass through
Machine so that interior machine coil temperature is the lowest, if indoor temperature will produce condensed water more than coil temperature, because
Its inner blower of interior machine do not opened does not runs, so after defrosting terminates or oil return terminates, condensed water
Cannot evaporate, time length will mouldy generation abnormal flavour.If unlatching blower fan, meeting blowing cold air, if this
Time be in heating mode, user's comfortableness can be affected, blower fan unlatching simultaneously can increase noise and power consumption.For
When this solution multi-connected machine heats defrost and oil return, the problem being not keyed up interior machine is necessary.
Summary of the invention
The technical problem to be solved is to provide for a kind of novel air-conditioner defrosting control system, its energy
Efficiently solve the problem that indoor set frosting is mouldy, there is simple in construction, convenient and practical feature.
For achieving the above object, the technical solution used in the present invention is: a kind of novel air-conditioner defrosting controls system
System, the indoor set being connected including multi-joint off-premises station and some and multi-joint off-premises station, described multi-joint off-premises station and
Being connected by main pipeline between indoor set, being connected between described main pipeline and indoor set has branch pipe(tube), described room
Interior machine is in series with electric expansion valve, and described electric expansion valve is located on branch pipe(tube), it is characterised in that: also include
Bypass solenoid valve, described bypass solenoid valve is in parallel with described electric expansion valve and indoor set, described bypass electricity
Magnet valve is connected with described branch pipe(tube) by bypass duct；
Further, one end of described bypass duct be connected on the branch pipe(tube) on the left of described electric expansion valve,
The other end of bypass duct is connected on the branch pipe(tube) on the right side of described indoor set；
Further, the quantity of described bypass solenoid valve is equal with the quantity of described indoor set.
For the deficiencies in the prior art, the present invention provides a kind of novel air-conditioner defrosting and oil return control system,
After system reaches defrost or oil return condition, the interior machine do not opened, by increasing bypass valve, changes refrigerant flow,
Without interior machine heat exchanger, ensure defrost effect when defrost, can guarantee that the oil in pipe arrangement when oil return equally
Outer machine can be returned to, not affect oil return effect, meanwhile, be not turned on interior machine will not mouldy generation abnormal flavour, thus protect
The normal of card controller uses and the health of user, it is provided that the comfortableness of air conditioning system.
Present invention employs above-mentioned technical scheme, overcome the deficiency of background technology, it is provided that be a kind of novel
Air-conditioner defrosting control system, it can efficiently solve the problem that indoor set frosting is mouldy, have simple in construction,
Convenient and practical feature.
Accompanying drawing explanation
Accompanying drawing 1 is the principle schematic of the present invention
Wherein: 1: main pipeline；2: branch pipe(tube) 3: bypass duct；E1～E2: electric expansion valve；S1～S3:
Bypass solenoid valve；T1～T3: interior machine heat exchanger.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by the detailed description of the invention of the present invention is further described, the present invention is made
Technical scheme and beneficial effect clearer, clear and definite.
Seeing accompanying drawing 1, the present invention includes the indoor set T that multi-joint off-premises station and some and multi-joint off-premises station are connected
(note: indoor set is exactly interior machine heat exchanger), by main pipeline 1 between described multi-joint off-premises station and indoor set T
Connecting, be connected and have branch pipe(tube) 2 between described main pipeline 1 and indoor set T, described indoor set T is in series with electronics
Expansion valve E, described electric expansion valve E are located on branch pipe(tube) 2, it is characterised in that: also include bypass solenoid valve
S, described bypass solenoid valve S are in parallel with described electric expansion valve E and indoor set T, described bypass solenoid valve
S is connected with described branch pipe(tube) 2 by bypass duct 3；
Further, one end of described bypass duct 3 is connected to the branch pipe(tube) 2 on the left of described electric expansion valve E
Upper, the other end of bypass duct 3 is connected on the branch pipe(tube) S on the right side of described indoor set T；
Further, the quantity of described bypass solenoid valve S is equal with the quantity of described indoor set T.
The when of work:
1. refrigeration oil return
1) being opening as indoor set T, when entering oil return, indoor set T and electric expansion valve E opens to
Big aperture, closes bypass solenoid valve S, it is ensured that ensure oil return effect while the normal refrigerating operaton of indoor set T；
2) it is non-opening as indoor set T, when entering oil return, closes indoor set T and electric expansion valve E,
Open bypass solenoid valve S, make coolant without indoor set T heat exchanger, prevent too low generation of coil temperature from condensing
Water, it is to avoid indoor set T does not opens and produces musty, improves user comfort.
2. heat defrost/oil return
1) being opening as indoor set T, when entering defrost/oil return, indoor set T and electric expansion valve E opens
To maximum opening, close bypass solenoid valve S, it is ensured that oil return and defrost effect, simultaneously close off blower fan, prevent from blowing
Cold wind, after defrost/oil return terminates, indoor set T and electric expansion valve E freely regulates, indoor set T heat exchanger
After preheating, reopen blower fan, normally heat；
2) current interior machine T is non-opening, when entering defrost/oil return, closes indoor set T and electronic expansion
Valve E, opens bypass solenoid valve S, makes coolant without indoor set T heat exchanger, prevent coil temperature from crossing low yield
Raw condensed water, after defrost/oil return terminates, indoor set electronic expansion E valve freely regulates, and closes bypass solenoid valve S,
It is in holding state.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explain this
The principle of invention, and limiting the scope of the invention can not be construed to by any way.Based on herein
Explaining, those skilled in the art need not pay performing creative labour can associate other tool of the present invention
Body embodiment, within these modes fall within protection scope of the present invention.
Claims (3)
1. a novel air-conditioner defrosting control system, including multi-joint off-premises station and some and multi-joint off-premises station
The indoor set connected, is connected by main pipeline between described multi-joint off-premises station and indoor set, described main pipeline
Being connected with between indoor set and have branch pipe(tube), described indoor set is in series with electric expansion valve, described electronic expansion
Valve is located on branch pipe(tube), it is characterised in that: also including bypass solenoid valve, described bypass solenoid valve is with described
Electric expansion valve and indoor set are in parallel, and described bypass solenoid valve is by bypass duct with described branch pipe(tube) even
Connect.
A kind of novel air-conditioner defrosting control system the most according to claim 1, it is characterised in that: institute
The one end stating bypass duct is connected on the branch pipe(tube) on the left of described electric expansion valve, bypass duct another
End is connected on the branch pipe(tube) on the right side of described indoor set.
A kind of novel air-conditioner defrosting control system the most according to claim 1, it is characterised in that: institute
The quantity stating bypass solenoid valve is equal with the quantity of described indoor set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062061.5A CN105987483A (en) | 2015-02-05 | 2015-02-05 | Novel air conditioner defrosting control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062061.5A CN105987483A (en) | 2015-02-05 | 2015-02-05 | Novel air conditioner defrosting control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105987483A true CN105987483A (en) | 2016-10-05 |
Family
ID=57037854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510062061.5A Pending CN105987483A (en) | 2015-02-05 | 2015-02-05 | Novel air conditioner defrosting control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105987483A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403081A (en) * | 2016-09-07 | 2017-02-15 | 广东美的暖通设备有限公司 | Multi-union machine and control method thereof |
| CN107461877A (en) * | 2017-07-19 | 2017-12-12 | 青岛海尔空调电子有限公司 | A kind of multiple on-line system defrosting control method |
| CN107676956A (en) * | 2017-10-09 | 2018-02-09 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
| WO2019047889A1 (en) * | 2017-09-07 | 2019-03-14 | 格力电器（武汉）有限公司 | Multi-split air conditioning system and control method therefor |
| CN110500667A (en) * | 2018-05-18 | 2019-11-26 | 广东Tcl智能暖通设备有限公司 | A kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage medium |
| CN111750486A (en) * | 2020-06-17 | 2020-10-09 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing internal machine from freezing and air conditioner |
| CN112524687A (en) * | 2020-12-11 | 2021-03-19 | 广东美的暖通设备有限公司 | Control method, air conditioning system and computer storage medium |
| WO2021233343A1 (en) * | 2020-08-28 | 2021-11-25 | 青岛海尔空调电子有限公司 | Oil return control method for multi-split air-conditioning system |
| CN114322066A (en) * | 2021-12-30 | 2022-04-12 | 珠海格力电器股份有限公司 | Indoor heat exchanger assembly, multi-split air conditioning system and control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975422A (en) * | 2010-09-30 | 2011-02-16 | 广东美的电器股份有限公司 | Warm/cool air-conditioner and defrosting method thereof |
-
2015
- 2015-02-05 CN CN201510062061.5A patent/CN105987483A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975422A (en) * | 2010-09-30 | 2011-02-16 | 广东美的电器股份有限公司 | Warm/cool air-conditioner and defrosting method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403081B (en) * | 2016-09-07 | 2019-08-27 | 广东美的暖通设备有限公司 | Multi-connected machine and its control method |
| CN106403081A (en) * | 2016-09-07 | 2017-02-15 | 广东美的暖通设备有限公司 | Multi-union machine and control method thereof |
| CN107461877A (en) * | 2017-07-19 | 2017-12-12 | 青岛海尔空调电子有限公司 | A kind of multiple on-line system defrosting control method |
| CN107461877B (en) * | 2017-07-19 | 2020-12-08 | 青岛海尔空调电子有限公司 | Defrosting control method for multi-split system |
| US11408633B2 (en) | 2017-09-07 | 2022-08-09 | Gree Electric Appliances (Wuhan) Co., Ltd. | Multi-split air conditioning system and control method therefor |
| WO2019047889A1 (en) * | 2017-09-07 | 2019-03-14 | 格力电器（武汉）有限公司 | Multi-split air conditioning system and control method therefor |
| CN107676956A (en) * | 2017-10-09 | 2018-02-09 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
| CN107676956B (en) * | 2017-10-09 | 2023-12-01 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
| CN110500667A (en) * | 2018-05-18 | 2019-11-26 | 广东Tcl智能暖通设备有限公司 | A kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage medium |
| CN111750486A (en) * | 2020-06-17 | 2020-10-09 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing internal machine from freezing and air conditioner |
| CN111750486B (en) * | 2020-06-17 | 2022-07-19 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing indoor unit from freezing and air conditioner |
| WO2021233343A1 (en) * | 2020-08-28 | 2021-11-25 | 青岛海尔空调电子有限公司 | Oil return control method for multi-split air-conditioning system |
| CN112524687A (en) * | 2020-12-11 | 2021-03-19 | 广东美的暖通设备有限公司 | Control method, air conditioning system and computer storage medium |
| CN114322066A (en) * | 2021-12-30 | 2022-04-12 | 珠海格力电器股份有限公司 | Indoor heat exchanger assembly, multi-split air conditioning system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105987483A (en) | Novel air conditioner defrosting control system | |
| CN101975422B (en) | Warm/cool air-conditioner and defrosting method thereof | |
| CN110360618A (en) | Air in kitchen regulating system | |
| CN103225851B (en) | A kind of multi-gang air conditioner working in coordination with defrosting | |
| CN104729029A (en) | Air conditioning system and control method thereof | |
| CN104329824A (en) | Multi-connected type air conditioner system and control method thereof | |
| CN103471183A (en) | Floor heating multi-connected air conditioner system | |
| CN103398453B (en) | A kind of control method of air conditioner fresh air machine | |
| CN107894061B (en) | Fresh air conditioner, defrosting method and computer readable storage medium | |
| CN106225290A (en) | Air conditioner and control method thereof | |
| CN105352042A (en) | Air conditioner indoor unit and air conditioner | |
| CN103591732B (en) | Air conditioning system | |
| CN104990321A (en) | Air conditioner and defrosting method thereof | |
| CN104315743A (en) | Temperature-adjusted room dehumidifying air conditioner | |
| CN104864627A (en) | Double heating, refrigerating, water heating and dehumidifying system | |
| CN211575632U (en) | Heat pump air conditioning system | |
| CN103225936A (en) | Air conditioning system with defrosting device and defrosting method thereof | |
| CN104154672B (en) | Multiple on-line system in parallel and defrosting control method | |
| CN105180315A (en) | Multi-functional integrated air conditioning system | |
| CN105371517A (en) | Radiant air conditioner and defrosting method thereof | |
| US20200300513A1 (en) | Refrigeration cycle apparatus | |
| CN203489365U (en) | Floor heating type multiple-online air-conditioning system | |
| CN204301192U (en) | Variable refrigerant volume and the integrated VRAV air-conditioning system of variable air rate | |
| CN111121337B (en) | Air conditioner double-condenser defrosting method and air conditioner | |
| CN203375604U (en) | Heat pump air conditioner system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |
|
| WD01 | Invention patent application deemed withdrawn after publication |