CN1699867A - Air conditioner with constant air outlet temperature and control method therefor - Google Patents
Air conditioner with constant air outlet temperature and control method therefor Download PDFInfo
- Publication number
- CN1699867A CN1699867A CN 200510033780 CN200510033780A CN1699867A CN 1699867 A CN1699867 A CN 1699867A CN 200510033780 CN200510033780 CN 200510033780 CN 200510033780 A CN200510033780 A CN 200510033780A CN 1699867 A CN1699867 A CN 1699867A
- Authority
- CN
- China
- Prior art keywords
- air
- heat
- conditioner
- heating unit
- electric heater
- 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.)
- Granted
Links
Images
Abstract
This invention discloses an air conditioner and its control method, wherein the air-out of the conditioner has a constant temperature, this air conditioner includes heat pump heat-production unit, heater heat-production unit and master control unit which can check the running parameter of the air conditioner, the master control unit eclectically connects with the heat pump heat-production unit and the heater heat-production unit, which adjusts the output power of the heater heat-production unit and change the indoor fan rotate speed by checking the required heat-production quantity of the air conditioner and the heat pump heat-production to make the sum of heat quantity equal with the designed required quantity of the air conditioner. This invention adjusts the heat-production quantity of the heater automatically according to the change of parameters such as environmental temperature to set the air-out temperature constantly at the best state. When the environmental temperature is lower or the heat-production quantity of the heat pump heat-production is smaller, the heat-production quantity of the heat-production of the automatic adjust electric heater reaches the most point to achieve fast heat-production; on the contrary the quantity reaches the least point to achieve the aim of energy conservation.
Description
Technical field
The invention belongs to the air regulator field, relate to a kind of air-conditioner of constant air outlet temperature, is adjusting and control method thereof about heating capacity of air conditioner specifically.
Background technology
Just simple refrigeration and the heat-production functions realized of air-conditioner in the market, for example: during refrigeration, start compressor and freeze when environment temperature is higher than design temperature, compressor is out of service when environment temperature is lower than design temperature; When heating, when environment temperature is lower than design temperature, start compressor and heat (then starting electric heater if any electric heater heats), compressor (then stopping electric heater if any electric heater heats) out of service when environment temperature is higher than design temperature.In fact, when air-conditioner was operated in refrigeration mode, the people was not too responsive to the height of leaving air temp, if even high some people of the big leaving air temp of air quantity feel very nice and cool equally; When air-conditioner was operated in heating mode, the people was very responsive to the height of leaving air temp, if leaving air temp is lower than people's shell temperature, just felt that air-conditioner blows a cold wind over, if leaving air temp is too high, the people feels under the weather equally.Yet,, cause when environment temperature is low, having many consumers and complain air conditioner heat-production to blow a cold wind over because the heat pump heating capacity of air-conditioner is bigger with variation of ambient temperature.
A kind of air-conditioner is also arranged recently, its electric heater heating unit by two sections independently electrical heating form.When environment temperature is low, two sections independently electrical heating all open; When environment temperature is higher, then only open wherein one section electric heater, when reaching then electric heater Close All of design temperature.This air-conditioner can only be realized simple heating capacity adjusting, can not accurately control the heating capacity of electric heater with the variation of environment temperature, thereby can't accurately control the leaving air temp of air-conditioner, but the phenomenon that air-conditioner is blown a cold wind over makes moderate progress.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of air-conditioner of constant air outlet temperature is provided, more detail is the operational factor of regulating air-conditioner automatically, thereby control total amount of heat that air-conditioner produced reaches dynamic equilibrium, make constant air outlet temperature according to air-conditioner operating mode of living in.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of air-conditioner of constant air outlet temperature, comprise the heat pump heating unit, the electric heater heating unit, can detect the main control unit of air-conditioner operational factor, it is characterized in that: described main control unit and heat pump heating unit, the electric heater heating unit is electrically connected, it is by the setting demand heating capacity of detection air-conditioner and the heating capacity of heat pump heating unit, regulate electric heater heating unit power output and/or change the indoor fan rotating speed, make the setting requirements of heat sum that heat pump heating unit and electric heater heating unit produced and air-conditioner suitable.
Specifically, described air-conditioner operational factor comprises in environment temperature, evaporator tube temperature, electric heater heating capacity and the indoor fan motor rotating speed one or several.
In a word, regulate the heating capacity of electric heater automatically, make air-conditioner operate in optimum state all the time according to the variation of the heating capacity of environment temperature, heat pump heating unit and air quantity.
And the present invention makes the control method of air conditioner air-out temperature constant, is characterized in comprising following step:
A): calculate the heating capacity that air-conditioner need produce;
B): the heating capacity that calculates the heat pump heating unit;
C): with the heating capacity in step a) and the step b) relatively, it is poor to draw heat, i.e. the electric heater heating unit heating capacity that need produce;
D): the maximum heating capacity of heat difference in the step c) and electric heater heating unit is relatively drawn difference;
E): when the difference in the step d) is negative value, regulate electric heater heating unit power automatically;
Difference in the step d) be on the occasion of the time, reduce the indoor fan motor rotational speed.
Air-conditioner of the present invention adopts fuzzy algorithmic approach to calculate the heat that the air-conditioner needs produce according to environment temperature, target leaving air temp and air quantity size, adopt fuzzy algorithmic approach to calculate the heating capacity of heat pump heating unit according to the Guan Wen of evaporimeter, environment temperature and air quantity size, the heating capacity that the heat that need produce with air-conditioner deducts the heat pump heating unit calculates the heat that the electric heater heating unit need produce.At last, regulate the heating capacity of electric heater heating unit to reach the purpose of air conditioner air-out temperature constant according to result of calculation.The fuzzy algorithmic approach that is adopted among the present invention is based on all that a large amount of test datas draws, may be different at different air-conditioning system algorithms.
The air-conditioner of constant air outlet temperature provided by the invention and control method thereof, the heating capacity of its electric heater heating unit can be regulated according to the operational factor of real-time collection, compared with prior art has the following advantages:
1. comfortable: as to change the heating capacity of regulating electric heater automatically according to parameters such as environment temperatures, make constant all the time the state of leaving air temp of air-conditioner at the most comfortable.
2. heat powerful: the heating capacity of or heat pump heating unit lower in environment temperature hour, the heating capacity of regulating the electric heater heating unit is automatically realized the purpose that heats fast to maximum;
3. energy-conservation: when higher or heat pump heating unit heating capacity was big in environment temperature, the heating capacity of regulating the electric heater heating unit had automatically improved heating efficiency greatly to minimum;
Description of drawings
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the circuit theory diagrams of electric heater heating unit among the embodiment;
Fig. 2 is the circuit theory diagrams of indoor fan motor stepless speed regulation among the embodiment;
Fig. 3 is a heating capacity demand Program for Calculation flow chart among the embodiment;
Fig. 4 is the heating capacity Program for Calculation flow chart of heat pump heating unit among the embodiment;
Fig. 5 is the program flow diagram of air-conditioner constant air outlet temperature control among the embodiment;
Fig. 6 is the structural representation of air-conditioner constant air outlet temperature control among the embodiment.
The specific embodiment
The air-conditioner of constant air outlet temperature of the present invention shown in accompanying drawing 1,2,6, comprises two cover heatings: heat pump heating unit, electric heater heating unit and main control unit, wherein two cover heating units are electrically connected by main control unit.
Wherein the heat pump heating unit comprises: indoor stepless speed-regulating fan, evaporimeter (according to the refrigeration principle name), compressor assembly, cross valve parts, throttle part, outdoor fan, condenser (according to the refrigeration principle name), cold-producing medium and control circuit.Indoor fan motor is connected with power supply by controllable silicon, and main control unit is by the SCR control circuit controling thyristor.In the air-conditioner running, main control unit is by the zero crossing of power zero-crossing detection circuit detection power supply, and the rotating speed of target according to indoor fan motor calculates silicon controlled zero cross fired delay time then, finally reaches the purpose of conditioning chamber internal fan motor speed.Its operation principle is to utilize cold-producing medium to become the gas of HTHP through compressor, enter evaporimeter by cross valve, when being higher than room temperature, the refrigerant temperature that flows through evaporimeter can provide heat to the room, the indoor stepless speed-regulating fan can be controlled the space air amount of carrying out heat exchange with evaporimeter, cold-producing medium is through becoming the liquid of high-temperature low-pressure after the evaporator cools, enter condenser by the liquid that becomes low-temp low-pressure behind the throttle part, when being lower than environment temperature, the refrigerant temperature that flows through condenser can absorb heat from environment, outdoor fan can strengthen the air capacity of carrying out heat exchange with condenser, become the gas of low-temp low-pressure after cold-producing medium heats through condenser, get back to compressor assembly again by cross valve at last.
The electric heater heating unit comprises: indoor stepless speed-regulating fan, electric heater and control circuit.Electric heater is connected with power supply by controllable silicon, and main control unit is by the conducting of SCR control circuit controling thyristor and end.In the air-conditioner running, main control unit is by the zero crossing of power zero-crossing detection circuit detection power supply, and the heating capacity size that produces according to electric heater heating unit needs calculates silicon controlled zero cross fired delay time then, finally reaches control heating capacity purpose.Its operation principle is to utilize the electric heater heating power, can provide heat to the room when the temperature of electric heater is higher than room temperature, and the indoor stepless speed-regulating fan can be controlled the space air amount of carrying out heat exchange with electric heater.
Air-conditioner in the present embodiment is to control constant air outlet temperature like this: at first, adopt fuzzy algorithmic approach to calculate the heating capacity that air-conditioner need produce.As shown in Figure 3, first testing environment temperature, the difference of computing environment temperature and target leaving air temp (determining) then according to the ability of air-conditioner, sensing chamber's internal fan rotating speed of motor again, and with above parameter fuzzyization.For example: environment temperature defines 5 fuzzy set membership functions on its domain, and corresponding linguistic variable is: very low (LB), lower (LS), general (Z), higher (HS), very high (HB); The difference of environment temperature and target leaving air temp defines 5 fuzzy set membership functions on its domain, corresponding linguistic variable: very big (BB), big (BS), general (Z), less (SS) and very little (SB); The indoor fan motor rotating speed defines 4 fuzzy set membership functions on its domain, corresponding linguistic variable is: very low (LB), low (L), in (M), high (H).At last, calculate the heating capacity of air-conditioner demand according to fuzzy control rule.
Then, adopt fuzzy algorithmic approach to calculate the heating capacity of heat pump heating unit.As shown in Figure 4, the rotating speed of first testing environment temperature, the gentle indoor fan motor of evaporator tube is then with above parameter fuzzyization.For example: environment temperature defines 5 fuzzy set membership functions on its domain, and corresponding linguistic variable is: very low (LB), lower (LS), general (Z), higher (HS), very high (HB); 5 fuzzy set membership functions of definition on the evaporator tube Wen Zaiqi domain, corresponding linguistic variable: very low (LB), lower (LS), general (Z), higher (HS), very high (HB); The indoor fan motor rotating speed defines 4 fuzzy set membership functions on its domain, corresponding linguistic variable is: very low (LB), low (L), in (M), high (H).At last, calculate the heating capacity of heat pump heating unit according to fuzzy control rule.
Finished after the above step, next compared and judge.As shown in Figure 5, it is the program flow diagram of air conditioner air-out temperature constant control, calculate the heating capacity of air-conditioner demand and the heating capacity of heat pump heating unit according to fuzzy control rule, both are compared, calculate the heating capacity that the electric heater heating unit need produce.If the heating capacity that electric heater need produce greater than its peak power, then reduces the indoor fan motor rotating speed, carry out Fuzzy Calculation again, the heating capacity that need produce up to electric heater is smaller or equal to its peak power.At last, regulate the heating capacity of electric heater heating unit according to result of calculation, the power output of just regulating electric heater is to suitable heating capacity, make that the heat sum that heat pump and electric heater produced is suitable with setting value, it is a kind of constant dynamically that total amount of heat keeps, make constant air outlet temperature, it is comfortable that the consumer feels.
Claims (3)
1. the air-conditioner of a constant air outlet temperature, comprise heat pump heating unit, electric heater heating unit, can detect the main control unit of air-conditioner operational factor, it is characterized in that: described main control unit is electrically connected with heat pump heating unit, electric heater heating unit, it is by the demand heating capacity of detection air-conditioner and the heating capacity of heat pump heating unit, regulate electric heater heating unit power output and/or change the indoor fan rotating speed, make the setting requirements of heat sum that heat pump heating unit and electric heater heating unit produced and air-conditioner suitable.
2. the air-conditioner of constant air outlet temperature according to claim 1, it is characterized in that: described air-conditioner operational factor comprises or several in environment temperature, evaporator tube temperature, electric heater heating capacity and the indoor fan motor rotating speed.
3. control method that makes the air conditioner air-out temperature constant, when the air-conditioning heating operation, this method may further comprise the steps:
A): calculate the heating capacity that air-conditioner need produce;
B): the heating capacity that calculates the heat pump heating unit;
C): with the heating capacity in step a) and the step b) relatively, it is poor to draw heat;
D): the maximum heating capacity of heat difference in the step c) and electric heater heating unit is relatively drawn difference;
E): when the difference in the step d) is negative value, regulate electric heater heating unit power automatically; Difference in the step d) be on the occasion of the time, reduce the indoor fan motor rotational speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100337800A CN1325849C (en) | 2005-03-28 | 2005-03-28 | Air conditioner with constant air outlet temperature and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100337800A CN1325849C (en) | 2005-03-28 | 2005-03-28 | Air conditioner with constant air outlet temperature and control method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699867A true CN1699867A (en) | 2005-11-23 |
| CN1325849C CN1325849C (en) | 2007-07-11 |
Family
ID=35476046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100337800A Expired - Fee Related CN1325849C (en) | 2005-03-28 | 2005-03-28 | Air conditioner with constant air outlet temperature and control method therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1325849C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769571A (en) * | 2008-12-26 | 2010-07-07 | Lg电子株式会社 | Air conditioner and method of operating the same |
| WO2011026424A1 (en) * | 2009-09-02 | 2011-03-10 | 珠海格力电器股份有限公司 | Control method and apparatus for auxiliary electric heating of air conditioner |
| CN101737903B (en) * | 2009-12-04 | 2012-07-04 | 上海理工大学 | Microenvironment thermal comfortableness multifunctional automatic regulation meter |
| CN102705943A (en) * | 2012-06-27 | 2012-10-03 | 中国扬子集团滁州扬子空调器有限公司 | Heat pump air conditioner adopting secondary auxiliary electric heater and use method thereof |
| CN103528134A (en) * | 2013-09-27 | 2014-01-22 | 广东美的制冷设备有限公司 | Air conditioner and heating control method thereof |
| CN104344503A (en) * | 2013-08-06 | 2015-02-11 | 大众汽车有限公司 | Method and device for regulating a stationary climate control for a vehicle |
| CN104596019A (en) * | 2013-10-30 | 2015-05-06 | 北汽福田汽车股份有限公司 | Air conditioner control system and air conditioner control method |
| CN104776943A (en) * | 2015-04-16 | 2015-07-15 | 广东美的制冷设备有限公司 | Air conditioner heat exchange amount detection method and device |
| CN105299819A (en) * | 2014-07-08 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | Heating control device of air conditioner and power control method for heating control device |
| CN105387573A (en) * | 2015-12-10 | 2016-03-09 | 广东志高空调有限公司 | Method for improving heating capacity of heat pump type air conditioner and heat pump type air conditioner |
| CN109855262A (en) * | 2019-03-04 | 2019-06-07 | 珠海格力电器股份有限公司 | The anti-cold wind control method of air-conditioning and the air conditioner for using this method |
| CN110068141A (en) * | 2019-04-18 | 2019-07-30 | 听枫智能科技(深圳)有限公司 | A kind of heated at constant temperature control method and device |
| CN110762798A (en) * | 2019-11-28 | 2020-02-07 | 广东美的制冷设备有限公司 | Control method, compressed air heat exchange system, air conditioner and storage medium |
| CN111720986A (en) * | 2020-06-03 | 2020-09-29 | 珠海格力电器股份有限公司 | Temperature control method and device, electronic equipment and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533352A (en) * | 1994-06-14 | 1996-07-09 | Copeland Corporation | Forced air heat exchanging system with variable fan speed control |
| CN2245187Y (en) * | 1995-12-27 | 1997-01-15 | 杭州东宝电器有限公司 | Cold and hot dual-purpose window type air conditioner |
| US5967411A (en) * | 1998-01-23 | 1999-10-19 | Carrier Corporation | Method and apparatus for controlling supplemental heat in a heat pump system |
-
2005
- 2005-03-28 CN CNB2005100337800A patent/CN1325849C/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769571A (en) * | 2008-12-26 | 2010-07-07 | Lg电子株式会社 | Air conditioner and method of operating the same |
| CN101769571B (en) * | 2008-12-26 | 2013-08-07 | Lg电子株式会社 | Air conditioner and method of operating the same |
| WO2011026424A1 (en) * | 2009-09-02 | 2011-03-10 | 珠海格力电器股份有限公司 | Control method and apparatus for auxiliary electric heating of air conditioner |
| CN101737903B (en) * | 2009-12-04 | 2012-07-04 | 上海理工大学 | Microenvironment thermal comfortableness multifunctional automatic regulation meter |
| CN102705943A (en) * | 2012-06-27 | 2012-10-03 | 中国扬子集团滁州扬子空调器有限公司 | Heat pump air conditioner adopting secondary auxiliary electric heater and use method thereof |
| CN104344503A (en) * | 2013-08-06 | 2015-02-11 | 大众汽车有限公司 | Method and device for regulating a stationary climate control for a vehicle |
| CN103528134A (en) * | 2013-09-27 | 2014-01-22 | 广东美的制冷设备有限公司 | Air conditioner and heating control method thereof |
| CN103528134B (en) * | 2013-09-27 | 2016-06-29 | 广东美的制冷设备有限公司 | Air-conditioner and method for heating and controlling thereof |
| CN104596019A (en) * | 2013-10-30 | 2015-05-06 | 北汽福田汽车股份有限公司 | Air conditioner control system and air conditioner control method |
| CN105299819B (en) * | 2014-07-08 | 2018-06-01 | 美的集团武汉制冷设备有限公司 | The heating control device and its Poewr control method of air conditioner |
| CN105299819A (en) * | 2014-07-08 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | Heating control device of air conditioner and power control method for heating control device |
| CN104776943A (en) * | 2015-04-16 | 2015-07-15 | 广东美的制冷设备有限公司 | Air conditioner heat exchange amount detection method and device |
| CN104776943B (en) * | 2015-04-16 | 2018-04-10 | 广东美的制冷设备有限公司 | air conditioner heat exchange amount detection method and device |
| CN105387573A (en) * | 2015-12-10 | 2016-03-09 | 广东志高空调有限公司 | Method for improving heating capacity of heat pump type air conditioner and heat pump type air conditioner |
| CN109855262A (en) * | 2019-03-04 | 2019-06-07 | 珠海格力电器股份有限公司 | The anti-cold wind control method of air-conditioning and the air conditioner for using this method |
| CN109855262B (en) * | 2019-03-04 | 2019-12-27 | 珠海格力电器股份有限公司 | Cold air prevention control method for air conditioner and air conditioner using same |
| CN110068141A (en) * | 2019-04-18 | 2019-07-30 | 听枫智能科技(深圳)有限公司 | A kind of heated at constant temperature control method and device |
| CN110762798A (en) * | 2019-11-28 | 2020-02-07 | 广东美的制冷设备有限公司 | Control method, compressed air heat exchange system, air conditioner and storage medium |
| CN110762798B (en) * | 2019-11-28 | 2023-08-25 | 广东美的制冷设备有限公司 | Control method, compressed air heat exchange system, air conditioner and storage medium |
| CN111720986A (en) * | 2020-06-03 | 2020-09-29 | 珠海格力电器股份有限公司 | Temperature control method and device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1325849C (en) | 2007-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1325849C (en) | Air conditioner with constant air outlet temperature and control method therefor | |
| CN102455093B (en) | Energy efficiency controlling method for refrigerating system | |
| CN102927715B (en) | Multiple-on-line heat pump air-conditioning system and method for controlling multiple-on-line heat pump air-conditioning system | |
| CN200965321Y (en) | High precision frequency-variable constant-temperature constant-humidity air conditioner | |
| CN204313390U (en) | A kind of low temperature refrigeration of air conditioner system | |
| CN102878615A (en) | Variable frequency air conditioning unit | |
| CN108105919B (en) | Variable frequency air conditioner system for dry working condition refrigeration and control method thereof | |
| CN112283902A (en) | Air conditioner control method and air conditioner | |
| CN201093668Y (en) | System for controlling air conditioner outdoor fan rotational speed | |
| CN100445658C (en) | Air conditioner for accurately control temperature and humidity | |
| CN106766365A (en) | Frequency conversion air-cooled heat pump water chiller-heater system and its control method and air-conditioning | |
| CN114576806A (en) | Central air-conditioning cooling water system energy-saving optimization method based on variable frequency control | |
| CN106482295A (en) | Indoor fan control method and device | |
| CN113865059B (en) | Heating operation control method for multi-split air conditioner | |
| CN107781946A (en) | The heat-production control method of convertible frequency air-conditioner | |
| CN108224823A (en) | Full load air-conditioning device and its control method | |
| CN101012990A (en) | Capacity governing system for heat pumping set | |
| CN102853583A (en) | Heat pump system | |
| CN110398036B (en) | Air conditioner refrigeration control method and system | |
| CN2844754Y (en) | Air conditioner with temperature and humidity adjusting precisively | |
| CN208012134U (en) | Full load air-conditioning device | |
| CN208365658U (en) | Underload desiccant cooling air-conditioning | |
| CN113757936B (en) | Air conditioner control system, air conditioner and control method of air conditioner | |
| CN2667384Y (en) | Smoothing temperature control constant temperature constant humidify machine | |
| CN1715798A (en) | Control method for variable frequency precision air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 |