CN102620381B - Dehumidification controlling method for air conditioner with PTC (positive temperature coefficient) electrical heater - Google Patents
Dehumidification controlling method for air conditioner with PTC (positive temperature coefficient) electrical heater Download PDFInfo
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Abstract
A dehumidification controlling method for an air conditioner with a PTC (positive temperature coefficient) electrical heater includes steps of acquiring the indoor coil temperature TE and the indoor environmental temperature TA when the air conditioner runs in a dehumidifying mode, comparing the indoor coil temperature TA to the indoor environmental temperature TA; monitoring running conditions of a compressor, an outdoor fan, an indoor fan and the PTC electrical heater; and controlling running modes of the compressor, the outdoor fan, the indoor fan and the PTC electric heater. The PTC electrical heater is turned on or turned off properly during dehumidification, so that the heat loss caused by dehumidification can be recovered by the electrical heater and the dehumidification at a constant temperature can be achieved.
Description
Technical field
The present invention relates to a kind of dehumidification control method of the air-conditioning with PTC electric heater, belong to room air and regulate field.
Background technology
The air that humidity is larger not only makes people feel wet vexed, uncomfortable, also can cause heavy corrosion to building and ornament.
In air conditioner refrigerating when operation,, room air runs into the evaporimeter that temperature is extremely low and condensation becomes water droplet, the principle of Here it is existing air conditioner dehumidification.Therefore, existing air-conditioning will reach dehumidifying object, while operation under dehumidification mode, will inevitably cause indoor temperature to decline, and this is just difficult to meet as needed the requirement of constant temperature dehumidification in the situations such as tealeaves preservation.
PTC(Positive Temperature Coefficient, be called for short PTC, positive temperature coefficient) material is the semiconductor resistor that a kind of typical case has temperature sensitivity, while exceeding certain temperature (Curie temperature), its resistance value is along with the rising of temperature is increasing of step evolution.
PTC electric heater, has utilized the above-mentioned positive temperature characterisitic of ptc material exactly, and, in the time reaching uniform temperature value (curie point), its resistance raises suddenly, makes electric current decline power reduction, reaches the object of automatic constant-temperature.Therefore, PTC electric heater can overheated, not produce naked light, is subject to the impact of voltage pulsation little, uses energy-saving safe, is used in more and more on firing equipment.
PTC electric heater, for the auxiliary heating of air-conditioning, can thoroughly solve common air-conditioning winter severe cold and heat a not enough difficult problem season.The heat pump heating of PTC electric heater and air-conditioning is system completely independently, and they are actually separately and work alone and be independent of each other, and just starts simultaneously.When ambient temperature is too low while making air-conditioner air outlet temperature too low, air-conditioning provides warm braw by the heating of PTC electric heater.
With the air-conditioning of PTC electric heater, can ensure that air-conditioning as usual starts, heats rapidly in the time that outdoor temperature is too low.Due to the appearance of extremely cold weather in recent years, the air-conditioning with PTC electric heater is very universal.
Summary of the invention
The invention reside in the problem that causes environment temperature to decline while solving air conditioner dehumidification.
For this reason, the invention provides a kind of dehumidification control method of the air-conditioning with PTC electric heater.Air-conditioning gathers and compares indoor coil pipe TE and indoor environment temperature TA while operation under dehumidification mode, and monitors the operation conditions of compressor, outdoor fan, indoor fan, PTC electric heater and control its method of operation.
In the present invention, in the time of TS+2 DEG C of indoor environment temperature TA >=air-conditioning design temperature, compressor, outer blower fan move continuously, and indoor fan is opened operation.While meeting the following conditions, open PTC electric heater: indoor fan operation >=1min simultaneously; 48 DEG C of indoor coil pipe TE<; PTC electric heater shut-in time >=1min.
In dehumidification control method of the present invention, at the simultaneously suitable opening electric heater of dehumidifying, thereby the thermal loss that dehumidifying is brought is able to supplement by electric heater, thereby reaches the object of constant temperature dehumidification.
If when outdoor environment temperature is very low, as below 10 DEG C, in now air conditioner dehumidification when operation, indoor coil pipe also can very low (48 DEG C of <), and now air conditioning exhausting temperature also can be very low, now needs PTC electrical heating to open, and improves heating capacity.If when outdoor environment temperature is higher, as 10 DEG C time on the upper side, now indoor coil pipe is higher, and while being greater than 48 DEG C, air conditioning exhausting temperature is higher, does not now need to open PTC electrical heating.PTC electric heater is high-power energy dissipation device, thus under dehumidification mode a unnecessary direct-open, increase kwh loss.PTC electric heater is opened in the time that the heating capacity of air-conditioning is very poor, in the time that heating capacity is high, closes, and can make like this air-conditioning effectively energy-conservation.
After indoor fan is opened under dehumidification mode, and move continuously 1min, the rotating speed when slow-speed of revolution is steadily to normal operation while allowing indoor fan from startup; Because PTC electric heater is heater members, after opening, environment temperature is very high, and caloric requirement is rotated generation air quantity by blower fan and blown away.If electric heater open and indoor fan is not opened, just heat is not dissipated in time, the easy heat damage of working of plastics of air-conditioning is even burnt.After indoor fan is opened, open electric heater, this control sequence, can take away the heat producing when PTC electric heater is opened in time, has increased heat, can make again the safer of air-conditioner operation again.
In addition, in the control method of PTC electric heater of the present invention, in compressor operating process, if PTC electric heater cuts out, needed just can reopen after 1min.Like this, can prevent that PTC electric heater is subject to thermal shock, thereby extend its life-span.
In the present invention, while meeting following arbitrary condition, close PTC electric heater: air-conditioning is in shutdown or pattern conversion; Indoor fan or compressor do not move; 52 DEG C of indoor coil pipe TE >.
Air-conditioning opening electric heater not in the time that heating mode, refrigeration mode, dehumidification mode, the conversion of air vent mode isotype are not determined or when shutdown; electric heater is in closed condition; prevent that PTC electric heater from ceaselessly changing at opening and closing state; prevent large dash current, effectively protect PTC electric heater.
When indoor fan fault or indoor fan are not opened, the caloric value of PTC electric heater can not blow away, and easily the working of plastics of air-conditioning is caused to damage; Now should close electric heater, ensure the safety of air-conditioner.
If outdoor environment temperature is higher, as 10 DEG C time on the upper side, indoor coil pipe is also higher, as while being greater than 52 DEG C, air conditioning exhausting temperature is higher, and the heating capacity of air-conditioning is better, does not now need to open PTC electric heater, can make like this air-conditioning effectively energy-conservation.
If electric heater opening and closing temperature spot is identical, can cause indoor coil pipe open and close back and forth in the time of this temperature spot just, be unfavorable for electric heater control.Therefore, in the present invention, PTC electric heater needs the numerical value of indoor coil pipe (being greater than 52 DEG C) different while needing indoor coil pipe (being less than 48 DEG C) to cut out from PTC electric heater while unlatching, in the time of the opening and closing of PTC electric heater, there is a return difference control like this, more effectively control the operation of PTC electric heater.
In addition, when indoor temperature transmitter, indoor coil pipe sensor damage, can not monitor temperature time, also should close PTC electric heater, after preventing that PTC electric heater from opening, can not meet exit criteria (50 DEG C of indoor coil pipe >), cause PTC electric heater one direct-open.Like this, even if Indoor Temperature sensor, indoor coil sensor are bad, also to effectively control PTC electric heater.
The present invention is as further improvement, and in the time of TS+2 DEG C of air-conditioning design temperature TS≤indoor environment temperature TA < air-conditioning design temperature, compressor, outdoor fan leave 10min and stop 6min; In compressor cuts out 3min, indoor fan is closed, and in other situations, indoor fan moves with faint wind; While meeting the following conditions, open PTC electric heater: compressor accumulative total operation >=30min simultaneously; Compressor, outdoor fan and indoor fan are simultaneously in operation; While meeting following arbitrary condition, close PTC electric heater: PTC electric heater is opened 8min; Air-conditioning is in shutdown or pattern conversion; Indoor fan or compressor do not move; 52 DEG C of indoor coil pipe TE >.
Like this, in the time of air conditioner dehumidification, suspend the operation (compressor, outdoor fan leave 10min and stop 6min) of compressor, outdoor fan, suitably opening chamber's inner blower changes wind, opening electric heater carrys out additional heat under proper condition simultaneously, thereby accomplishes constant temperature dehumidification.
In the time of indoor environment temperature TA< air-conditioning design temperature TS, compressor, outer blower fan are out of service, and inner blower brings into operation with faint wind after 3min out of service, and PTC electric heater cuts out.Reach the object to constant indoor temperature dehumidifying by the wind that changes of indoor and outdoors completely.
Brief description of the drawings
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of one embodiment of the invention;
Fig. 2 be one embodiment of the invention main flow chart;
Fig. 3 is the flow chart of control model unlatching PTC electric heater once in one embodiment of the invention;
Fig. 4 is the control model flow chart of closing PTC electric heater once in one embodiment of the invention;
Fig. 5 is the flow chart of the unlatching PTC electric heater under control model two in one embodiment of the invention;
Fig. 6 is the flow chart of closing PTC electric heater under the control model two in dehumidification control method of the present invention.
Detailed description of the invention
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, in the dehumidification control method of the present embodiment, microprocessor M37546 carries out indoor coil pipe TE and indoor environment temperature TA and gathers, and the information such as above-mentioned information and air-conditioning design temperature TS or concrete numerical value are compared.Meanwhile, microprocessor M37546 monitors the operation conditions of compressor, outdoor fan, indoor fan, PTC electric heater and controls its method of operation.
As shown in Figure 2, in the dehumidification control method of the present embodiment, there are three kinds of control models.After starting of air conditioner, first microprocessor M37546 carries out following decision operation:
Step 1: the air-conditioner operation that will dehumidify? if so, forward step 2 to; If not, finish Dehumidification controlling.
Step 2: TS+2 DEG C of indoor environment temperature TA >=air-conditioning design temperature set up? if so, enter step 3; If not, forward step 4 to.
Step 3: move according to control model one.
Step 4: TS+2 DEG C of air-conditioning design temperature TS≤indoor environment temperature TA < air-conditioning design temperature set up? if so, enter step 5; If not, forward step 6 to.
Step 5: move according to control model two.
Step 6; Move according to control model three.
In the dehumidification control method of the present embodiment, control model one is: compressor, outer blower fan move continuously, and indoor fan is opened operation; And the open operation of PTC electric heater is as shown in Figure 3:
Step 1: whether the indoor fan of air-conditioning moves 1min continuously? if so, forward step 2 to; If not, forward step 5 to;
Step 2: indoor coil pipe is less than 48 DEG C? if so, forward step 3 to; If not, forward step 5 to;
Does the step 3:PTC electric heater shut-in time exceed 1min? if so, forward step 4 to; If not, forward step 5 to;
Step 4: open PTC electric heater;
Step 5: finish;
In the dehumidification control method of the present embodiment, enter control model for the moment, the shutoff operation of PTC electric heater as shown in Figure 4:
Step 1: air-conditioner shuts down or pattern conversion? if not, forward step 2 to; If so, forward step 5 to;
Step 2: indoor fan or compressor are not move to set up? if not, forward step 3 to; If so, forward step 5 to;
Step 3: indoor coil pipe is greater than 52 DEG C? if not, forward step 4 to; If so, forward step 5 to;
Step 4: maintain electric heater ortho states;
Step 5: close PTC electric heater, finish.
In the dehumidification control method of the present embodiment, control model two is: compressor, outdoor fan leave 10min and stop 6min; In compressor cuts out 3min, indoor fan is closed, and in other situations, indoor fan moves with faint wind; And the open operation of PTC electric heater is as shown in Figure 5:
Step 1: the operation of compressor accumulative total reaches 30 min? if so, forward step 2 to; If not, forward step 4 to;
Step 2: whether compressor, indoor fan and outdoor fan simultaneously in operation? if so, forward step 3 to; If not, forward step 4 to;
Step 3: open PTC electric heater;
Step 4: finish.
In the dehumidification control method of the present embodiment, while entering control model two, the shutoff operation of PTC electric heater as shown in Figure 6:
Is step 1:PTC electric heater opened and is reached 8 min? if not, forward step 2 to; If so, forward step 6 to;
Step 2: air-conditioner shuts down or pattern conversion? if not, forward step 3 to; If so, forward step 6 to;
Step 3: indoor fan or compressor are not move to set up? if not, forward step 4 to; If so, forward step 6 to;
Step 4: indoor coil pipe is greater than 52 DEG C? if not, forward step 5 to; If so, forward step 6 to;
Step 5: maintain ortho states;
Step 6: close PTC electric heater, finish.
In the dehumidification control method of the present embodiment, control model three is: compressor, outer blower fan are out of service, and inner blower brings into operation with faint wind after 3min out of service, and PTC electric heater cuts out.
In the dehumidification control method of the present embodiment, there are three kinds of control models automatically to select, select rightly open or close PTC electric heater in dehumidifying, thereby the thermal loss that dehumidifying is brought is able to supplement by electric heater simultaneously, thereby reaches the object of constant temperature dehumidification.
Be more than one of embodiments of the present invention, for those skilled in the art, do not spend performing creative labour, on the basis of above-described embodiment, can do multiple variation, can realize equally object of the present invention.But this variation obviously should be in the protection domain of claims of the present invention.
Claims (1)
1. the dehumidification control method of the air-conditioning with PTC electric heater, air-conditioning gathers and compares indoor coil pipe TE and indoor environment temperature TA while operation under dehumidification mode, and monitor the operation conditions of compressor, outdoor fan, indoor fan, PTC electric heater and control its method of operation, it is characterized in that:
1) in the time of TS+2 DEG C of indoor environment temperature TA >=air-conditioning design temperature, compressor, outer blower fan move continuously, and indoor fan is opened operation;
While meeting the following conditions, open PTC electric heater simultaneously:
Indoor fan operation >=1min;
48 DEG C of indoor coil pipe TE<;
PTC electric heater shut-in time >=1min;
While being to meet following arbitrary condition, close PTC electric heater:
Air-conditioning is in shutdown or pattern conversion;
Indoor fan or compressor do not move;
52 DEG C of indoor coil pipe TE >;
2) in the time of TS+2 DEG C of air-conditioning design temperature TS≤indoor environment temperature TA < air-conditioning design temperature, compressor, outdoor fan leave 10min and stop 6min; In compressor cuts out 3min, indoor fan is closed, and in other situations, indoor fan moves with faint wind;
While meeting the following conditions, open PTC electric heater simultaneously:
Compressor accumulative total operation >=30min;
Compressor, outdoor fan and indoor fan are simultaneously in operation;
While meeting following arbitrary condition, close PTC electric heater:
PTC electric heater is opened 8min;
Air-conditioning is in shutdown or pattern conversion;
Indoor fan or compressor do not move;
52 DEG C of indoor coil pipe TE >;
3) in the time of indoor environment temperature TA< air-conditioning design temperature TS, compressor, outer blower fan are out of service, and inner blower brings into operation with faint wind after 3min out of service, and PTC electric heater cuts out.
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| CN201210042880.XA CN102620381B (en) | 2012-02-23 | 2012-02-23 | Dehumidification controlling method for air conditioner with PTC (positive temperature coefficient) electrical heater |
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| CN201210042880.XA CN102620381B (en) | 2012-02-23 | 2012-02-23 | Dehumidification controlling method for air conditioner with PTC (positive temperature coefficient) electrical heater |
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| CN104110780B (en) * | 2013-10-22 | 2017-01-25 | 广东美的制冷设备有限公司 | Air conditioner and control method and system for electric auxiliary heating thereof |
| CN104654514B (en) * | 2013-11-19 | 2017-10-13 | 海尔集团公司 | The control method of air conditioner temperature-fixing dehumidifying |
| CN106403196B (en) * | 2016-10-19 | 2019-10-01 | 青岛海尔空调器有限总公司 | Air conditioner dehumidification control method and control device |
| CN107036246B (en) * | 2017-04-26 | 2019-10-01 | 广东美的暖通设备有限公司 | Air conditioner and its constant temperature dehumidification control method, device |
| CN107388491B (en) * | 2017-07-14 | 2019-11-19 | Tcl空调器(中山)有限公司 | Method for controlling frequency conversion, air conditioner and the computer readable storage medium of air conditioner |
| CN113983528A (en) * | 2021-11-17 | 2022-01-28 | 美智光电科技股份有限公司 | Bathroom heater control method, computer readable storage medium and bathroom heater |
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| CN101813360A (en) * | 2009-12-28 | 2010-08-25 | 宁波奥克斯空调有限公司 | Method and device for controlling electric heating of air conditioner |
| CN102032643A (en) * | 2009-09-25 | 2011-04-27 | 珠海格力电器股份有限公司 | Constant temperature dehumidification control method for air conditioner |
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| KR100557043B1 (en) * | 2003-01-30 | 2006-03-03 | 엘지전자 주식회사 | Method for dehumidification of air conditioner |
| KR101605901B1 (en) * | 2009-09-11 | 2016-03-23 | 엘지전자 주식회사 | Air conditioner and control method thereof |
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| CN102032643A (en) * | 2009-09-25 | 2011-04-27 | 珠海格力电器股份有限公司 | Constant temperature dehumidification control method for air conditioner |
| CN101813360A (en) * | 2009-12-28 | 2010-08-25 | 宁波奥克斯空调有限公司 | Method and device for controlling electric heating of air conditioner |
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Effective date of registration: 20170519 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |
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Effective date of registration: 20191218 Address after: 243100 No. 1166, oaks Avenue, Dangtu Economic Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Ox Intelligent Electric Co., Ltd. Address before: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee before: AUX air conditioning Limited by Share Ltd |