CN1828153A - Self-adaptive type super low temperature refrigeration air conditioner - Google Patents
Self-adaptive type super low temperature refrigeration air conditioner Download PDFInfo
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- CN1828153A CN1828153A CNA2005101207734A CN200510120773A CN1828153A CN 1828153 A CN1828153 A CN 1828153A CN A2005101207734 A CNA2005101207734 A CN A2005101207734A CN 200510120773 A CN200510120773 A CN 200510120773A CN 1828153 A CN1828153 A CN 1828153A
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Abstract
The invention discloses a self-adaptive ultra-low temperature refrigeration air conditioner, which comprises a refrigeration system formed by a compressor, a condenser, a capillary and a steamer; and an electric control system formed by circuit control board and sensor. Wherein, the electric control chip of said circuit control board is fixed with indoor defrost program; said sensor is a thermal sensitive resistance which is connected to the pin of indoor defrost program. When the air conditioner is in low-temperature refrigeration mode, the thermal sensitive resistance feeds the signal back to the electric control chip, via the change of environment temperature to judge if the indoor steamer is frosted; and when meeting the defrost condition, using the rotational speed of outer motor or changing the operation mode (as from the refrigeration operation mode to heating operation mode) to process defrost operation. The invention has simple structure and lower cost.
Description
Technical field
The invention belongs to the air-conditioning technique field, relate to a kind of self-adaptive type super low temperature refrigeration air conditioner, more detail is about the low-temperature refrigeration technology under outdoor low temperature environment.Belong to the improvement of existing Split Type Domestic Air.
Background technology
Existing air-conditioner includes refrigerating circuit and electric control system, and refrigerating circuit is made up of compressor, condenser, capillary member and evaporimeter.Electric-control system comprises parts such as circuit control panel, thermistor, control valve and fan electromotor.During refrigerating operaton, air-conditioner is according to refrigeration principle, by compressor work with heat from indoor transfer to outdoor.Generally speaking, during refrigerating operaton, indoor temperature can be higher than outdoor temperature, and refrigerating plant is along with outdoor temperature descends and the increase of condensation ability.
Existing family expenses detachable air conditioner on the market, the environment temperature of work are generally 18 ℃～43 ℃.In actual use, in general, when outdoor environment temperature is high, require air-conditioner to carry out the refrigerating operaton pattern; When outdoor environment temperature is low, require air-conditioner to carry out the heating operation pattern.Our domestic air conditioning all is to design at such instructions for use at present.But the occasion that some is special when outdoor environment temperature is lower than 0 ℃, still requires refrigeration.Such as large-scale machine room, equipment etc., it had both required indoor and outdoor isolation, require indoor environment temperature to remain on 18～32 ℃ again, because in the time of the operation of indoor machine and equipment, the capital constantly generates heat, indoor temperature can constantly rise, and then has influenced the life-span and the work efficiency of workers of equipment, and this just requires air-conditioner must carry out the refrigerating operaton pattern.For traditional domestic air conditioner, when being lower than 0 ℃, outdoor environment temperature carries out refrigerating operaton, because the outdoor air temperature is very low, make outside condensing pressure, condensation temperature very low, the refrigerant temperature of condensator outlet can reach below 10 ℃, after passing through capillary member again, its evaporating temperature often is lower than-5 ℃, passes through capillary-compensated again, and cold-producing medium enters indoor evaporator, cause frosting, joint ice easily, influence the air circulation of indoor, influence refrigeration, and, cause the compressor loop liquid hammer easily, damage compressor.Obviously, traditional domestic air conditioner does not meet the condition of cryogenic refrigeration, can not satisfy the cryogenic refrigeration requirement.
Summary of the invention
The problem to be solved in the present invention is to overcome the deficiencies in the prior art, a kind of self-adaptive type super low temperature refrigeration air conditioner is provided, more detail is a kind of simple in structure, need not adopt the defrost specialized spare part, save cost, still can adapt to automatically in the area of intemperance, a kind of T1 type low temperature self-adaption separated air conditioners of operate as normal.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of self-adaptive type super low temperature refrigeration air conditioner, comprise by the refrigeration system of compressor, condenser, capillary member and evaporimeter and the electric-control system of forming by circuit control panel, sensor, it is characterized in that: be solidified with indoor defrost program in the automatically controlled chip on the described circuit control panel.
Described sensor is a thermistor, and the pin corresponding to indoor defrost program on this thermistor and the automatically controlled chip is connected.
During refrigerating operaton, compressor is delivered to outdoor condenser condenses with the cold-producing medium of HTHP, and the outside fan is sent to condensation of refrigerant institute liberated heat outdoor with hot blast.Cold-producing medium by outdoor condenser flows into the indoor evaporator evaporation through capillary member, cold is sent into indoor by the indoor fan.Last cold-producing medium is got back to compressor from indoor evaporator, finishes a kind of refrigeration cycle.In refrigerating operaton, the operating condition by thermistor detection air-conditioner judges whether defrost program in the priming chamber by automatically controlled chip.As defrost program in the priming chamber, then carry out the defrost action by control outdoor motor rotating speed or conversion complete machine operational mode (as converting the heating operation pattern to) from the refrigerating operaton pattern.
Self-adaptive type super low temperature refrigeration air conditioner of the present invention, under ultra-low temperature surroundings, its control flow comprises following step:
A) thermistor detects the temperature of its position;
B) defrost program in the priming chamber is changed and judged whether to automatically controlled chip with the temperature signal of thermistor calibrating;
C) the indoor defrost program of automatically controlled chip enable;
D) regulate outdoor motor rotating speed or switch transition complete machine operational mode and carry out defrost.
Wherein, thermistor can be arranged at the diverse location of air-conditioner.That is to say that thermistor can be arranged on the indoor evaporator U type pipe.Perhaps be arranged on the outdoor condenser U type pipe.Described thermistor also can be arranged on the compressor exhaust pipe.Described thermistor also can be arranged on the compressor return air tracheae.It delivers to automatically controlled chip with the ambient temperature signal of being measured, and defrost program in the priming chamber is changed and judged whether to automatically controlled chip with the temperature signal of thermistor calibrating.
When the temperature that receives thermistor when automatically controlled chip satisfies condition subsequent, will withdraw from indoor defrost program automatically.
Self-adaptive type super low temperature refrigeration air conditioner provided by the invention, compared with prior art have the following advantages: by on automatically controlled chip, increasing the program of indoor evaporator automatic defrosting, when air-conditioner carries out the cryogenic refrigeration pattern, thermistor returns signal to the electric control chip, by the variation characteristics of environment temperature being judged whether frosting of indoor evaporator.If meet the defrost condition, then carry out the defrost action by control outdoor motor rotating speed or conversion complete machine operational mode (as converting the heating operation pattern to) from the refrigerating operaton pattern.The defrost problem of indoor evaporator when the invention solves the domestic air conditioning cryogenic refrigeration, and simple in structure, input cost is seldom.
Description of drawings
Below in conjunction with the drawings and specific embodiments self-adaptive type super low temperature refrigeration air conditioner of the present invention is elaborated.
Fig. 1 is the structural representation of self-adaptive type super low temperature refrigeration air conditioner embodiment one of the present invention;
Fig. 2 is the structural representation of self-adaptive type super low temperature refrigeration air conditioner embodiment two of the present invention;
Fig. 3 is the structural representation of self-adaptive type super low temperature refrigeration air conditioner embodiment three of the present invention;
Fig. 4 is the structural representation of self-adaptive type super low temperature refrigeration air conditioner embodiment four of the present invention;
Fig. 5 is the structural representation of self-adaptive type super low temperature refrigeration air conditioner embodiment five of the present invention;
Fig. 6 is a self-adaptive type super low temperature refrigeration air conditioner cryogenic refrigeration flow chart of the present invention.
Among the figure: 1, compressor 2, circuit control panel 3, condenser 4, sensor I 5, capillary member 6, four-way change-over valve 7, evaporimeter 8, sensor II 9, thermistor.
The specific embodiment
Embodiment one:
As accompanying drawing 1, shown in Figure 6, self-adaptive type super low temperature refrigeration air conditioner of the present invention, comprise refrigeration system of forming by compressor 1, condenser 3, capillary member 5 and evaporimeter 7 and the electric-control system of forming by circuit control panel 2, sensor I4, sensor II8, wherein, be solidified with indoor defrost program in the automatically controlled chip on circuit control panel 2.The entry condition of indoor defrost program is: when indoor evaporator coil temperature≤3 ℃, and accumulated time is when being 2 minutes, defrosting action in the beginning inlet chamber.
Air-conditioner is when refrigerating operaton, and compressor 1 is delivered to 3 condensations of outside condenser with the cold-producing medium of HTHP, and the outside fan is sent to condensation of refrigerant institute liberated heat outdoor with hot blast.Cold-producing medium by condenser 3 flows into 7 evaporations of indoor evaporimeter through capillary member 5, cold is sent into indoor by the indoor fan.Last cold-producing medium is got back to compressor 1 from evaporimeter 7, finishes a kind of refrigeration cycle.When outdoor environment temperature when not being very cold, self-adaptive type super low temperature refrigeration air conditioner working order of the present invention is the same with the conventional domestic air-conditioning; When the outside environment temperature was very cold, air-conditioner detected indoor evaporator coil temperature≤3 ℃, and accumulated time meets the entry condition of indoor defrost program, defrosting action in the beginning inlet chamber when being 2 minutes.
Embodiment two:
As Fig. 2, shown in Figure 6, embodiment two is also to have increased thermistor 9 in electric-control system with the difference of embodiment one.Wherein, the thermistor 9 of increase is located on the U type coil pipe of evaporimeter 7, and is connected with automatically controlled chip on the circuit control panel 2.When outdoor environment temperature when not being very cold, self-adaptive type super low temperature refrigeration air conditioner working order of the present invention is the same with the conventional domestic air-conditioning; When the outside environment temperature is very cold, air-conditioner is pressed the refrigeration mode running, indoor evaporator 7 is easy to frosting, this moment is by the temperature of thermistor 9 induction refrigeration systems, whether judge by frosting to indoor evaporator 7 for automatically controlled chip, if satisfy condition, then control outdoor motor rotating speed or conversion complete machine operational mode (as converting the heating operation pattern to) and carry out the defrost action, till defrost is clean from the refrigerating operaton pattern.The experiment proved that, use air-conditioner of the present invention and do/wet-bulb temperature indoor: 27 ℃/19 ℃, outdoor doing/wet-bulb temperature :-15 ℃/-16 ℃) still can operate as normal.
Embodiment three:
As shown in Figure 3, embodiment three only is that with the difference of embodiment two thermistor 9 that increases is located on the U type coil pipe of condenser 3.Temperature by thermistor 9 induction refrigeration systems, whether judge by frosting to indoor evaporator 7 for automatically controlled chip, if satisfy condition, then control outdoor motor rotating speed or conversion complete machine operational mode (as converting the heating operation pattern to) and carry out the defrost action, till defrost is clean from the refrigerating operaton pattern.
Embodiment four:
As shown in Figure 4, embodiment three only is that with the difference of embodiment two thermistor 9 that increases is located on the compressor exhaust pipe.
Embodiment five:
As shown in Figure 5, embodiment three only is that with the difference of embodiment two thermistor 9 that increases is located on the compressor return air pipe.
Technical scheme of the present invention also can be applicable on the refrigerating plant of other similar air-conditioners, and it can realize the super low temperature refrigeration function equally.
Claims (6)
1. self-adaptive type super low temperature refrigeration air conditioner, comprise refrigeration system of forming by compressor, condenser, capillary member and evaporimeter and the electric-control system of forming by circuit control panel, sensor, it is characterized in that: be solidified with indoor defrost program in the automatically controlled chip on the described circuit control panel.
2. self-adaptive type super low temperature refrigeration air conditioner according to claim 1 is characterized in that: described sensor is a thermistor, and the pin corresponding to indoor defrost program on this thermistor and the automatically controlled chip is connected.
3. self-adaptive type super low temperature refrigeration air conditioner according to claim 2 is characterized in that: described thermistor is arranged on the indoor evaporator U type pipe.
4. self-adaptive type super low temperature refrigeration air conditioner according to claim 2 is characterized in that: described thermistor is arranged on the outdoor condenser U type pipe.
5. self-adaptive type super low temperature refrigeration air conditioner according to claim 2 is characterized in that: described thermistor is arranged on the compressor exhaust pipe.
6. self-adaptive type super low temperature refrigeration air conditioner according to claim 2 is characterized in that: described thermistor is arranged on the compressor return air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101207734A CN1828153A (en) | 2005-12-21 | 2005-12-21 | Self-adaptive type super low temperature refrigeration air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101207734A CN1828153A (en) | 2005-12-21 | 2005-12-21 | Self-adaptive type super low temperature refrigeration air conditioner |
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| CN1828153A true CN1828153A (en) | 2006-09-06 |
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| CNA2005101207734A Pending CN1828153A (en) | 2005-12-21 | 2005-12-21 | Self-adaptive type super low temperature refrigeration air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774397A (en) * | 2012-10-22 | 2014-05-07 | Lg电子株式会社 | Clothe treating apparatus with heat pump and control method thereof |
| CN109696205A (en) * | 2017-10-23 | 2019-04-30 | 南京开天眼无人机科技有限公司 | A kind of Temperature Humidity Sensor |
| CN110094861A (en) * | 2019-06-04 | 2019-08-06 | 珠海格力电器股份有限公司 | Refrigeration system |
| CN111780361A (en) * | 2020-06-30 | 2020-10-16 | 海信（山东）空调有限公司 | Air conditioner |
-
2005
- 2005-12-21 CN CNA2005101207734A patent/CN1828153A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774397A (en) * | 2012-10-22 | 2014-05-07 | Lg电子株式会社 | Clothe treating apparatus with heat pump and control method thereof |
| CN109696205A (en) * | 2017-10-23 | 2019-04-30 | 南京开天眼无人机科技有限公司 | A kind of Temperature Humidity Sensor |
| CN110094861A (en) * | 2019-06-04 | 2019-08-06 | 珠海格力电器股份有限公司 | Refrigeration system |
| CN111780361A (en) * | 2020-06-30 | 2020-10-16 | 海信（山东）空调有限公司 | Air conditioner |
| CN111780361B (en) * | 2020-06-30 | 2021-12-03 | 海信（山东）空调有限公司 | Air conditioner |
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Open date: 20060906 |