CN103512103A - Frost sensing device of outdoor unit of air-conditioner - Google Patents
Frost sensing device of outdoor unit of air-conditioner Download PDFInfo
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- CN103512103A CN103512103A CN201210219436.0A CN201210219436A CN103512103A CN 103512103 A CN103512103 A CN 103512103A CN 201210219436 A CN201210219436 A CN 201210219436A CN 103512103 A CN103512103 A CN 103512103A
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- conditioner
- radiating fin
- outdoor machine
- sensing device
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Abstract
The invention provides a frost sensing device of an outdoor unit of an air-conditioner. The frost sensing device comprises copper tubes and heat dissipating fins. The copper tubes in a snake shape are inserted into parallelly-arrayed heat dissipating fins so as to form an external heat exchanger of the air-conditioner. Insulating heat conducting materials are arranged on contact faces of the copper tubes and the heat dissipating fins. A detecting electrode arranged on the heat dissipating fins is arranged in an array area of the parallelly-arrayed heat dissipating fins and is connected with a resistance gauge. The frost sensing device of the outdoor unit of the air-conditioner can accurately detect whether the outdoor unit of the air-conditioner frosts or not, enables the air-conditioner to defrost timely so as to effectively improve the operation efficiency of the air-conditioner.
Description
Affiliated technical field
The present invention relates to air-conditioning equipment field, especially, is a kind of induction installation for air-conditioner defrosting.
Background technology
Under air-conditioning heating pattern, what outdoor machine of air-conditioner blew is cold wind, and heat exchange temperature is in subzero several years or 10 several years, and now the dewfall on machine fin outside of the steam in outside air, is then frozen into ice cube.If do not defrost, outer machine is blocked by ice cube, cannot dispel the heat, and ice cube is tied thicker and thicker, and in final outer machine, refrigerant cannot evaporate, hypotony, and system is jumped low-voltage variation, shuts down.After reaching certain condition (every kind of air-conditioning dispatches from the factory and sets: if air-conditioning heating set time or fin temperature are lower than environment temperature X ° and lasting X minute), start defrosting, now system is changed into refrigeration mode, cross valve is by inside and outside machine exchange function, refrigerant is HTHP freon in outer machine, has melted ice cube, reach impose a condition after defrosting finish (as continued the set time, or temperature is higher than X °, is replaced by refrigeration mode).
There is certain limitation in above-mentioned Defrost mode, such as region is different, south air moister easier frosting, and northern air is dry cold, but be more southernly not easy frosting, therefore, air-conditioning is by set time or the mode that defrosts by detected temperatures unreliable, and whether temperature does not represent the frosting of outer machine, thus the outer machine of existing detection whether the mode of frosting there is certain drawback, cause outer machine shift to an earlier date or delay and defrost, affect the heat exchange efficiency of air-conditioning.
Summary of the invention
In order to address the above problem, this real object is to provide a kind of outdoor machine of air-conditioner sense frost device, and this outdoor machine of air-conditioner sense frost device has the whether frosting of accurate detection outdoor machine of air-conditioner, effectively improves operation of air conditioner efficiency.
The technical solution adopted for the present invention to solve the technical problems is:
This outdoor machine of air-conditioner sense frost device comprises copper pipe and radiating fin, the radiating fin being arranged in parallel described in described copper pipe interts in snakelike mode forms the external heat exchanger of air-conditioning, on the contact-making surface of described copper pipe and described radiating fin, be provided with insulating heat-conduction material, in between the alignment area of the described radiating fin being arranged in parallel, be provided with the exploring electrode being arranged on described radiating fin, described exploring electrode is connected into an ohmer.
As preferably, described exploring electrode has three at least, and a described exploring electrode is connected into Jian one end, alignment area of described radiating fin, in described in other, electrode is distributed between the alignment area of described radiating fin.
As preferably, described insulating heat-conduction material is ceramic material.
As preferably, in described ohmer, be provided with comparison circuit, described comparison circuit is for triggering the comparator of air-conditioner defrosting function.
The invention has the advantages that:
1. utilize the mode of measuring resistance effectively to detect the whether frosting of outer machine;
2. by detecting the size of resistance, can judge the degree of frosting.
Accompanying drawing explanation
Fig. 1 is the structural representation of this outdoor machine of air-conditioner sense frost device one embodiment.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is the structural representation of this outdoor machine of air-conditioner sense frost device one embodiment.
In the present embodiment, this outdoor machine of air-conditioner sense frost device comprises copper pipe 100 and radiating fin 200, the radiating fin 200 being arranged in parallel described in described copper pipe 100 interts in snakelike mode forms the external heat exchanger of air-conditioning, on the contact-making surface of described copper pipe 100 and described radiating fin 200, be provided with insulating heat-conduction material 110, in between the described radiating fin 200 alignment area being arranged in parallel, be provided with the exploring electrode 310 being arranged on described radiating fin 200, described exploring electrode 310 is connected into an ohmer 300.
The resistance of described exploring electrode 310 combination of two between can exploring electrode.
Above-mentioned outdoor machine of air-conditioner sense frost device, described exploring electrode 310 is provided with three, a described exploring electrode 310 is connected into Jian one end, described radiating fin 200 alignment area, in described in other, electrode 310 is distributed between described radiating fin 200 alignment area, a plurality of interval detections are conducive to resistance accuracy of detection and accuracy.
Above-mentioned outdoor machine of air-conditioner sense frost device, described insulating heat-conduction material 110 is ceramic material, prevents that copper pipe from, by ohmer short circuit, affecting testing result.
Above-mentioned outdoor machine of air-conditioner sense frost device, is provided with comparison circuit in described ohmer 300, and described comparison circuit is for triggering the comparator of air-conditioner defrosting function, and whether can automatic decision reach predetermined resistance, thereby trigger air-conditioner defrosting function if having comparator.
The operation principle of above-mentioned outdoor machine of air-conditioner sense frost device:
When described air-conditioning heats, outdoor machine of air-conditioner starts frosting, because the frost of being on the increase is condensed on described radiating fin 200, the white area that contains impurity between described radiating fin 200 is increasing, now being arranged at the resistance that detection on radiating fin 200 electricity 310 utmost points experience on radiating fin 200 is diminished by infinity, comparator in being arranged at ohmer 300 detects surveyed resistance and is greater than while setting, trigger the defrost function of air-conditioning, after having defrosted because therefore 200 of radiating fins do not exist frost, the resistance that described ohmer 300 detects is for infinitely great, now comparator triggers and closes air-conditioner defrosting function.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. an outdoor machine of air-conditioner sense frost device, comprises copper pipe (100) and radiating fin (200), and the radiating fin (200) being arranged in parallel described in described copper pipe (100) interts in snakelike mode forms the external heat exchanger of air-conditioning, it is characterized in that:
On the contact-making surface of described copper pipe (100) and described radiating fin (200), be provided with insulating heat-conduction material (110), in between the alignment area of the described radiating fin being arranged in parallel (200), be provided with the exploring electrode (310) being arranged on described radiating fin (200), described exploring electrode (310) is connected into an ohmer (300).
2. outdoor machine of air-conditioner sense according to claim 1 frost device, it is characterized in that: described exploring electrode (310) has three at least, a described exploring electrode (310) is connected into Jian one end, alignment area of described radiating fin (200), in electrode described in other (310) is distributed between the alignment area of described radiating fin (200).
3. outdoor machine of air-conditioner sense frost device according to claim 1, is characterized in that: described insulating heat-conduction material (110) is ceramic material.
4. according to claim 1 or outdoor machine of air-conditioner sense claimed in claim 2 frost device, it is characterized in that: described ohmer is provided with comparison circuit in (300), described comparison circuit is for triggering the comparator of air-conditioner defrosting function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219436.0A CN103512103A (en) | 2012-06-29 | 2012-06-29 | Frost sensing device of outdoor unit of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219436.0A CN103512103A (en) | 2012-06-29 | 2012-06-29 | Frost sensing device of outdoor unit of air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103512103A true CN103512103A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219436.0A Pending CN103512103A (en) | 2012-06-29 | 2012-06-29 | Frost sensing device of outdoor unit of air-conditioner |
Country Status (1)
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| CN (1) | CN103512103A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776210A (en) * | 2014-02-18 | 2014-05-07 | 马根昌 | Air conditioning heat exchange tube system |
| CN106989494A (en) * | 2017-05-10 | 2017-07-28 | 广东美的制冷设备有限公司 | Air conditioner and its frosting detection device and method |
| CN114234538A (en) * | 2021-12-20 | 2022-03-25 | 苏州热立方新能源有限公司 | Frost layer recognition device, using method and probe automatic defrosting system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207535U (en) * | 1987-04-29 | 1987-12-31 | 王紫来 | Frost thickness capacitance sensor used in a refrigerating system |
| EP1726895A1 (en) * | 2005-05-27 | 2006-11-29 | Giuseppe Floris | Anti-freeze protection device for chillers |
| CN101688731A (en) * | 2007-03-06 | 2010-03-31 | 开利公司 | The micro-channel evaporator of band frosting Detection ﹠ Controling |
-
2012
- 2012-06-29 CN CN201210219436.0A patent/CN103512103A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207535U (en) * | 1987-04-29 | 1987-12-31 | 王紫来 | Frost thickness capacitance sensor used in a refrigerating system |
| EP1726895A1 (en) * | 2005-05-27 | 2006-11-29 | Giuseppe Floris | Anti-freeze protection device for chillers |
| CN101688731A (en) * | 2007-03-06 | 2010-03-31 | 开利公司 | The micro-channel evaporator of band frosting Detection ﹠ Controling |
Non-Patent Citations (1)
| Title |
|---|
| 应皆荣: "《TiO2-K2O-Y2O3-SiO2陶瓷薄膜结露元件的制备及其湿敏性能研究》", 《功能材料》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776210A (en) * | 2014-02-18 | 2014-05-07 | 马根昌 | Air conditioning heat exchange tube system |
| CN103776210B (en) * | 2014-02-18 | 2015-12-30 | 深圳市菱泰机电工程有限公司 | Heat-exchange pipe for air conditioner system and preparation method thereof |
| CN106989494A (en) * | 2017-05-10 | 2017-07-28 | 广东美的制冷设备有限公司 | Air conditioner and its frosting detection device and method |
| CN114234538A (en) * | 2021-12-20 | 2022-03-25 | 苏州热立方新能源有限公司 | Frost layer recognition device, using method and probe automatic defrosting system |
| CN114234538B (en) * | 2021-12-20 | 2023-03-10 | 苏州热立方新能源有限公司 | Frost layer recognition device, using method and probe automatic defrosting system |
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Application publication date: 20140115 |