CN203454504U - Intelligent defrosting air conditioning unit - Google Patents
Intelligent defrosting air conditioning unit Download PDFInfo
- Publication number
- CN203454504U CN203454504U CN201320417679.5U CN201320417679U CN203454504U CN 203454504 U CN203454504 U CN 203454504U CN 201320417679 U CN201320417679 U CN 201320417679U CN 203454504 U CN203454504 U CN 203454504U
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- Prior art keywords
- heat exchanger
- conditioning unit
- outdoor heat
- air
- intelligent defrosting
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 39
- 238000010257 thawing Methods 0.000 title claims abstract description 37
- 239000003507 refrigerant Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model provides an intelligent defrosting air conditioning unit. The intelligent defrosting air conditioning unit comprises a refrigerant circulation loop and a main board controller, wherein the refrigerant circulation loop is formed by connecting at least one compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger and a throttling component through refrigerant pipelines, and the main board controller is used for controlling an air conditioning system to operate. At least one anemometer is arranged on the side of the outdoor heat exchanger and used for detecting the airflow speed of the outdoor heat exchanger and feeding back the airflow speed to the main board controller to judge the frosting degree, and a port is formed in a main control panel of the main board controller and connected with the anemometer. When the outdoor heat exchanger of the intelligent defrosting air conditioning unit frosts, the air volume passing through the outdoor heat exchanger will reduce sharply, at the moment, the main board controller can accurately judge the frosting conditions of the surface of the outer door heat exchanger in real time through the air speed or the air volume detected by the anemometer and can control the system to perform defrosting or not, so that the phenomenon that defrosting is performed when no frost exists is avoided, the energy utilization ratio is improved, and user experience is promoted.
Description
Technical field
The utility model belongs to air-conditioning technical field, more particularly, relates to a kind of intelligent defrosting air-conditioning unit.
Background technology
When air-conditioning unit operation heats, outdoor heat exchanger is made evaporimeter and is used, when outdoor temperature is lower or humidity is larger, steam can be agglomerated to heat exchanger surface, there is frost, directly cause the heat exchange amount of heat exchanger to reduce, defrost meeting causes heat supply not enough not in time, the serious serious consequences such as the bursting by freezing of heat exchanger copper pipe, compressor liquid hammer that even can cause.Now, need heat exchanger frosting situation in time, effectively to be detected, in time enter defrosting program and defrost to protect air-conditioning unit.
Prior art mostly serviceability temperature sensor detects specified temp point temperature, as off-premises station Guan Wen, environment temperature etc., utilizes temperature value estimation heat exchanger frosting degree, judges whether to enter defrost program.Owing to being limited to detection mode itself and temperature sensor precision; this method can not reflect the frosting situation of heat exchanger in real time; this makes producer can only be partial to adopt conservative design in design; thereby cause current air-conditioning unit often to there will be the phenomenon of " frostless defrosting ": when outdoor temperature is lower; when heat exchanger surface does not have obvious frosting, unit also can enter defrosting program.And air-conditioning unit is in operation defrosting program, cannot be to indoor heat supply.Frequent operation defrosting program, this has not only reduced energy utilization rate, has hindered user winter heating to experience simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of intelligent defrosting air-conditioning unit, is intended to realize in real time, effectively judge defrosting opportunity, avoids the phenomenon of " frostless defrosting " to occur, and promotes user winter heating and experiences.
For achieving the above object, the technical solution adopted in the utility model is: a kind of intelligent defrosting air-conditioning unit is provided, and it comprises the refrigerant circulation circuit being connected to form by refrigerant pipeline by least one compressor, a cross valve, an outdoor heat exchanger, an indoor heat exchanger and a throttle part and the mainboard controller of controlling air-conditioning system operation; The sidepiece of described outdoor heat exchanger is provided with at least one for detection of the air velocity by described heat exchanger and feeds back to described mainboard controller with the anemobiagraph of judgement frosting degree, and described mainboard controller is provided with a port being connected with described anemobiagraph.
Particularly, described anemobiagraph is made as 1, and is arranged at the position of upper middle of a side of described outdoor heat exchanger.
Particularly, described anemobiagraph is made as 2 to 6, and scattering device is in a side of described outdoor heat exchanger.
Further, on described outdoor heat exchanger, be also provided with the temperature-sensitive bag being connected with described mainboard controller.
Preferably, described outdoor heat exchanger is finned coil formula heat exchanger.
Further, on the low pressure gas pipe being connected with the air entry of described compressor, be also provided with a gas-liquid separator.
Alternatively, described throttle part is a kind of in capillary, electric expansion valve, heating power expansion valve.
Further, on the high-pressure liquid tube pipeline being connected with indoor heat exchanger He on low pressure gas pipe pipeline, be respectively arranged with a high-pressure stop valve and a low-pressure shutoff valve.
Alternatively, described compressor is rotary compressor or scroll compressor.
The beneficial effect of the intelligent defrosting air-conditioning unit that the utility model provides is:
The utility model intelligent defrosting air-conditioning unit arranges detection by the air velocity of described heat exchanger and feeds back to described mainboard controller with judgement frosting degree anemobiagraph on the outdoor heat exchanger of existing unit, and on the master control borad of mainboard controller, increase a port being connected with anemobiagraph, in mainboard controller, set corresponding wind speed parameter and determining program simultaneously, when outdoor heat exchanger frosting, by the rapid minimizing of air quantity meeting of outdoor heat exchanger, and when reaching certain thickness, frost layer is reduced to zero, now, the wind speed that passes through heat exchanger or air quantity that mainboard controller detects by anemobiagraph, can be real-time, accurately judge outdoor heat exchanger surface frosting situation, and whether control system defrosts, thus, just allow unit have white in defrost in time, when frostless, move and heat as much as possible, both ensured the security of unit, also guaranteed the running time that unit heats in the winter time, improved energy utilization rate, and promote user's experience.
Accompanying drawing explanation
The theory structure of the intelligent defrosting air-conditioning unit that Fig. 1 provides for the utility model embodiment;
The intelligent defrosting air-conditioning unit that Fig. 2 provides for the utility model embodiment heat with defrosting mode under operation logic figure;
The outdoor heat exchanger of intelligent defrosting air-conditioning unit and the distribution schematic diagram of anemobiagraph and temperature-sensitive bag that Fig. 3 provides for the utility model one embodiment;
The outdoor heat exchanger of intelligent defrosting air-conditioning unit and the distribution schematic diagram of anemobiagraph and temperature-sensitive bag that Fig. 4 provides for another embodiment of the utility model;
The operational flow diagram of the intelligent defrosting air-conditioning unit that Fig. 5 provides for the utility model embodiment.
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
See also Fig. 1 and Fig. 3, the intelligent defrosting air-conditioning unit that now one preferred embodiment provides to the utility model, this intelligent defrosting air-conditioning unit comprises the refrigerant circulation circuit being connected to form by refrigerant pipeline by a compressor 1, cross valve 2, outdoor heat exchanger 3, indoor heat exchanger 4 and throttle part 5 and the mainboard controller 6 of controlling air-conditioning system operation; Sidepiece at outdoor heat exchanger 3 is provided with at least one for detection of the air velocity by heat exchanger and feeds back to mainboard controller 6 with the anemobiagraph 7 of judgement frosting degree, and mainboard controller 6 is provided with the port 61 being connected with anemobiagraph 7.
Wherein, the preferred finned coil formula heat exchanger of outdoor heat exchanger 3, this kind of heat exchanger is by a plurality of fins 32 and wear the radiating tube 31 being welded in fin 32, and anemobiagraph 7 is made as 2 or 3, and be arranged at the position of upper middle of a side of outdoor heat exchanger 3, anemobiagraph 7 is fixed on to a side of fin 32, from the speed of gap air-flow out between each adjacent fin 32, can detect for anemobiagraph 7, and the surperficial frosting at this position of outdoor heat exchanger 3 is slower, if all frosting is to a certain extent for these positions, show that outdoor heat exchanger has quite been necessary to have defrosted.
The intelligent defrosting air-conditioning unit that the utility model provides, detection be set on the outdoor heat exchanger 3 of existing unit by the air velocity of described heat exchanger and feed back to described mainboard controller 6 with judgement frosting degree anemobiagraph 7, and on the master control borad of mainboard controller 6, increase a port 61 being connected with anemobiagraph 7, in mainboard controller 6, set corresponding wind speed parameter and determining program simultaneously; When outdoor heat exchanger 3 frosting, by the rapid minimizing of air quantity meeting of outdoor heat exchanger 3, and when reaching certain thickness, frost layer is reduced to zero, now, mainboard controller 6 passes through wind speed or the air quantity of heat exchanger by detection, can in real time, accurately judge the surperficial frosting situation of outdoor heat exchanger 3, and whether control system defrosts.
Refer to Fig. 4, in another embodiment of the present utility model, anemobiagraph 7 is set to 2 to 6, and scattering device is in a side of outdoor heat exchanger 3, the wind speed at a plurality of positions of heat exchanger can be detected like this, detects data more accurate.
Further, in the present embodiment, on outdoor heat exchanger 3, be also provided with the temperature-sensitive bag 8 being connected with mainboard controller 6, in the time of can setting heating operation in control program when environment temperature is during lower than certain temperature value, mainboard controller 6 starts to detect the port 61 being connected with anemobiagraph 7, avoids unconditionally repeating to do some unnecessary detections.
Further, in the present embodiment, on the low pressure gas pipe 333 being connected with the air entry of compressor 1, be also provided with gas-liquid separator 9, this gas-liquid separator 9 can prevent that liquid refrigerants from entering in compressor 11, and only allow gaseous coolant enter in compressor 11, prevent that compressor 11 from producing liquid hit phenomenon, guarantees the security reliability of unit.
In the present embodiment, throttle part 5 can be selected a kind of in capillary, electric expansion valve, heating power expansion valve, selects electric expansion valve as good, because electric expansion valve can accurately be controlled the flow of refrigerant but take; Its reaction speed is also fast than heating power expansion valve, can reach in time the required open degree of defrosting, improves defrost performance, and evaporating temperature is also more stable; And can control better suction superheat, adapt to larger refrigeration scope.
Further, on the high-pressure liquid tube pipeline 111 being connected with indoor heat exchanger 4, be provided with high-pressure stop valve 11, on low pressure gas pipe pipeline 222, be provided with low-pressure shutoff valve 10, can open and close spool by manual control like this and control passing through and cut-off of refrigerant, for installing and overhaul air-conditioning system, provide convenience.
In the present embodiment, compressor 1 can be selected rotary compressor 1 or scroll compressor 1, and that these two kinds of compressors all have advantages of is lightweight, volume is little, reliability is high, failure rate is low, smooth running, noise are little.
Also refer to Fig. 2 and Fig. 5, operation logic and the control method of the intelligent defrosting air-conditioning unit below the utility model being provided describe simultaneously.
Wind speed setting value WS1 and time value ts1 in control program in mainboard controller 6.Wherein, WS1 is that outdoor heat exchanger 3 frostings reach certain thickness, heat exchanger surface air speed value when stuffy, can on the basis of experimental data, revise; Whether ts1 is the time value of a setting, abundant for judging frosting.
When air-conditioning unit operation heating mode, as shown by the arrows in Figure 2, when temperature-sensitive bag 8 detects 7 ℃ of outdoor environment temperature T4 <, mainboard controller 6 starts the wind velocity signal W value that detection port 61 receive to the flow direction of its refrigerant.If outdoor heat exchanger 3 starts frostings, wind speed is descending, when the l of W≤WS1 continue accumulation time, t was greater than ts1 time, just unit enters defrosting program; No person, unit continues operation heating mode, thereby reaches the object of intelligent defrosting.
When heat exchanger frosting, by the rapid minimizing of air quantity meeting of heat exchanger, and when reaching certain thickness, frost layer is reduced to zero.Now, by detecting by the air quantity of heat exchanger, can in real time, accurately reflect heat exchanger surface frosting situation, judge whether defrosting.Thus, just allow unit have white in defrost in time, when frostless, move and heat as much as possible, both ensured the security of unit, also guaranteed the running time that unit heats in the winter time, improved energy utilization rate, and promoted user's experience.
Certainly, as an alternative, also can judge by detecting duration that air quantity is less than the duration of certain value and is greater than certain value the frosting situation of heat exchanger surface.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. an intelligent defrosting air-conditioning unit, comprises the refrigerant circulation circuit being connected to form by refrigerant pipeline by least one compressor, a cross valve, an outdoor heat exchanger, an indoor heat exchanger and a throttle part and the mainboard controller of controlling air-conditioning system operation; It is characterized in that:
The sidepiece of described outdoor heat exchanger is provided with at least one anemobiagraph, described anemobiagraph is for detection of the air velocity by described heat exchanger and feed back to described mainboard controller with judgement frosting degree, and the master control borad of described mainboard controller is provided with a port being connected with described anemobiagraph.
2. intelligent defrosting air-conditioning unit as claimed in claim 1, is characterized in that: described anemobiagraph is made as 1, and is arranged at the position of upper middle of a side of described outdoor heat exchanger.
3. intelligent defrosting air-conditioning unit as claimed in claim 1, it is characterized in that: described anemobiagraph is made as 2 to 6, and scattering device is in a side of described outdoor heat exchanger.
4. the intelligent defrosting air-conditioning unit as described in claims 1 to 3 any one, is characterized in that: on described outdoor heat exchanger, be also provided with the temperature-sensitive bag being connected with described mainboard controller.
5. intelligent defrosting air-conditioning unit as claimed in claim 4, is characterized in that: described outdoor heat exchanger is finned coil formula heat exchanger.
6. intelligent defrosting air-conditioning unit as claimed in claim 5, is characterized in that: on the low pressure gas pipe being connected with the air entry of described compressor, be also provided with a gas-liquid separator.
7. intelligent defrosting air-conditioning unit as claimed in claim 4, is characterized in that: described throttle part is a kind of in capillary, electric expansion valve, heating power expansion valve.
8. intelligent defrosting air-conditioning unit as claimed in claim 4, is characterized in that: on the high-pressure liquid tube pipeline being connected with indoor heat exchanger He on low pressure gas pipe pipeline, be respectively arranged with a high-pressure stop valve and a low-pressure shutoff valve.
9. intelligent defrosting air-conditioning unit as claimed in claim 4, is characterized in that: described compressor is rotary compressor or scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417679.5U CN203454504U (en) | 2013-07-12 | 2013-07-12 | Intelligent defrosting air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417679.5U CN203454504U (en) | 2013-07-12 | 2013-07-12 | Intelligent defrosting air conditioning unit |
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| CN203454504U true CN203454504U (en) | 2014-02-26 |
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| CN201320417679.5U Expired - Fee Related CN203454504U (en) | 2013-07-12 | 2013-07-12 | Intelligent defrosting air conditioning unit |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940163A (en) * | 2014-04-14 | 2014-07-23 | 美的集团武汉制冷设备有限公司 | Defrosting control method and device |
| CN104807113A (en) * | 2015-04-30 | 2015-07-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner outdoor unit defrosting judging system and air conditioner outdoor unit defrosting judging method |
| CN106032929A (en) * | 2015-03-19 | 2016-10-19 | Tcl空调器(中山)有限公司 | Defrost control method and device |
| CN106403093A (en) * | 2015-07-30 | 2017-02-15 | 杭州三花研究院有限公司 | Heat pump air conditioning system, heat exchanger and control method of heat pump air conditioning system |
| CN107166688A (en) * | 2017-07-10 | 2017-09-15 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN108302651A (en) * | 2016-09-18 | 2018-07-20 | 苏州三星电子有限公司 | A kind of multi-gang air-conditioner outdoor machine system and its Defrost method |
| CN108344066A (en) * | 2018-04-04 | 2018-07-31 | 陕西建工安装集团有限公司 | A kind of multi-online air-conditioning system outdoor machine defrosting device |
| CN108775631A (en) * | 2018-05-15 | 2018-11-09 | 青岛易图令科技有限公司 | Air-conditioner outdoor unit, air-conditioning and snow-removing method |
| CN109210694A (en) * | 2018-09-10 | 2019-01-15 | 青岛海尔空调器有限总公司 | A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards |
| CN109612028A (en) * | 2018-12-29 | 2019-04-12 | 贵州大学 | A method of online monitoring and control system for judging defrosting of outdoor unit of air conditioner |
| CN111928423A (en) * | 2020-06-30 | 2020-11-13 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioning unit |
| CN112303825A (en) * | 2020-09-30 | 2021-02-02 | 青岛海尔空调电子有限公司 | Defrosting control method of heat source tower |
| CN113375380A (en) * | 2021-07-22 | 2021-09-10 | 青岛腾远设计事务所有限公司 | Air source heat pump defrosting control system and control method |
| CN114791155A (en) * | 2022-04-02 | 2022-07-26 | Tcl空调器(中山)有限公司 | Anti-freezing control method and device for air conditioner, electronic equipment and storage medium |
-
2013
- 2013-07-12 CN CN201320417679.5U patent/CN203454504U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940163A (en) * | 2014-04-14 | 2014-07-23 | 美的集团武汉制冷设备有限公司 | Defrosting control method and device |
| CN106032929A (en) * | 2015-03-19 | 2016-10-19 | Tcl空调器(中山)有限公司 | Defrost control method and device |
| CN106032929B (en) * | 2015-03-19 | 2019-08-27 | Tcl空调器(中山)有限公司 | Defrost control method and device |
| CN104807113A (en) * | 2015-04-30 | 2015-07-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner outdoor unit defrosting judging system and air conditioner outdoor unit defrosting judging method |
| CN104807113B (en) * | 2015-04-30 | 2017-11-10 | 广东美的暖通设备有限公司 | A kind of air conditioner outdoor machine defrosting decision method |
| CN106403093A (en) * | 2015-07-30 | 2017-02-15 | 杭州三花研究院有限公司 | Heat pump air conditioning system, heat exchanger and control method of heat pump air conditioning system |
| CN106403093B (en) * | 2015-07-30 | 2020-05-19 | 杭州三花研究院有限公司 | Heat pump air conditioning system, heat exchanger and control method of heat pump air conditioning system |
| CN108302651A (en) * | 2016-09-18 | 2018-07-20 | 苏州三星电子有限公司 | A kind of multi-gang air-conditioner outdoor machine system and its Defrost method |
| CN107166688A (en) * | 2017-07-10 | 2017-09-15 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN108344066A (en) * | 2018-04-04 | 2018-07-31 | 陕西建工安装集团有限公司 | A kind of multi-online air-conditioning system outdoor machine defrosting device |
| CN108775631A (en) * | 2018-05-15 | 2018-11-09 | 青岛易图令科技有限公司 | Air-conditioner outdoor unit, air-conditioning and snow-removing method |
| WO2019218686A1 (en) * | 2018-05-15 | 2019-11-21 | 青岛易图令科技有限公司 | Outdoor unit of air conditioner, air conditioner and snow removal method |
| CN109210694A (en) * | 2018-09-10 | 2019-01-15 | 青岛海尔空调器有限总公司 | A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards |
| CN109612028A (en) * | 2018-12-29 | 2019-04-12 | 贵州大学 | A method of online monitoring and control system for judging defrosting of outdoor unit of air conditioner |
| CN111928423A (en) * | 2020-06-30 | 2020-11-13 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioning unit |
| CN111928423B (en) * | 2020-06-30 | 2023-05-26 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioning unit |
| CN112303825A (en) * | 2020-09-30 | 2021-02-02 | 青岛海尔空调电子有限公司 | Defrosting control method of heat source tower |
| CN113375380A (en) * | 2021-07-22 | 2021-09-10 | 青岛腾远设计事务所有限公司 | Air source heat pump defrosting control system and control method |
| CN114791155A (en) * | 2022-04-02 | 2022-07-26 | Tcl空调器(中山)有限公司 | Anti-freezing control method and device for air conditioner, electronic equipment and storage medium |
| CN114791155B (en) * | 2022-04-02 | 2023-11-14 | Tcl空调器(中山)有限公司 | Anti-freezing control method and device for air conditioner, electronic equipment and storage medium |
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Granted publication date: 20140226 Termination date: 20190712 |
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