CN1218895A - Method for controlling fan speed of evaporator of air conditioner - Google Patents
Method for controlling fan speed of evaporator of air conditioner Download PDFInfo
- Publication number
- CN1218895A CN1218895A CN98115618A CN98115618A CN1218895A CN 1218895 A CN1218895 A CN 1218895A CN 98115618 A CN98115618 A CN 98115618A CN 98115618 A CN98115618 A CN 98115618A CN 1218895 A CN1218895 A CN 1218895A
- Authority
- CN
- China
- Prior art keywords
- temperature difference
- fan
- speed
- evaporimeter
- evaporator
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/17—Details or features not otherwise provided for mounted in a wall
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Procedure for controlling the speed of an evaporating fan of an air conditioner, which includes an evaporator comprising a number of evaporator sections of a flowing shape interconnected in parallel and a variable speed fan to drive air through the evaporator. The speed of the fan is controlled by detecting the temperatures of the evaporator sections and determining if any temperature difference obtained between the sections of the evaporator is below a reference temperature or not. The fan is driven at a normal speed if the temperature difference is below the reference value and at a different speed from normal if the temperature difference is exceeds the reference value.
Description
The present invention relates to air-conditioner, in more detail, relate to the method for the fan of controlling air-conditioner.
Usually, general air-conditioner is used for making the room pleasantly cool by heat exchanger, and correspondingly has indoor part and the outdoor parts that is installed in indoor and outdoors respectively.Outdoor parts comprise be used for compression refrigerant compressor and be used for the condenser of condensing refrigerant.In addition, thus indoor part comprises the refrigerant evaporation that makes condensation reduces the evaporimeter of indoor temperature.
Fig. 1 is a side cutaway view of showing the indoor part of general air-conditioner.
Referring to Fig. 1, indoor part comprises casing 1, evaporimeter (evaporator) 2 and fan 3.Casing 1 forms suction hole 1a at its front surface and upper surface, forms steam vent 1b at its lower surface.Bend to the back that multistage evaporimeter 2 is installed in suction hole 1a.Fan 3 is installed in the back of evaporimeter 2, so that make air circulation.Evaporimeter 2 is bent to first, second and the 3rd evaporator section 2a, 2b and 2c, so that dwindle the volume of casing 1.Owing to increased the surface area of evaporimeter 2 thus, promoted its cooling effectiveness.According to the circulation (not shown) operation of refrigerant, make refrigerant flow into the evaporimeter 2 of casing 1 by compressor, condenser and the dropping equipment that is capillary form.Then, refrigerant flows into compressor again, so that make it repetitive cycling in whole refrigerating cycle.Refrigerant is introduced first, second and the 3rd evaporator section 2a, 2b and 2c simultaneously, make it to return compressor then, so that repetitive cycling.
When carrying out cooling operations with general air-conditioner, by fan 3 by the suction hole 1a that forms at front surface and upper surface the suction of the air in room casing 1.By in the evaporimeter 2, it is cooled to low temperature at air.After this, by fan 3 air in the casing 1 is entered the room by steam vent 1b.The Cryogenic air and the room air of discharging carry out heat exchange, flow into casing 1 by suction hole 1a then, thereby have repeated above-mentioned steps.On the surface of evaporator section 2a, 2b and 2c, form the dew that is produced by the air cooling.Dew flows down and discharges air-conditioner by gravity along those surfaces.
But, in general air-conditioner, refrigerant is not being distributed under the situation of each evaporator section equably, promptly be transported to the amount of refrigerant of evaporimeter when too much or not enough, the temperature difference appears between the evaporimeter each several part.Because that temperature difference, the dew amount that forms between part of evaporimeter and another part has nothing in common with each other.Along with the temperature difference between evaporimeter each several part 2a, 2b and the 2c becomes big, the degree that this dew generates difference also becomes bigger.In addition, when the temperature difference between evaporimeter each several part 2a, 2b and the 2c becomes big, the dew amount that forms on one or more evaporator sections may deficiency so that dew by under the gravity current.Therefore, dew may be discharged into the room with the air of cooling.So, need provide a kind of method that can reduce the temperature difference between the evaporimeter each several part, so that dew is discharged smoothly.
Working out the present invention is for technical the problems referred to above before overcoming, therefore, purpose of the present invention just provides a kind of method of controlling air-conditioner fan, in this air-conditioner, can keep the temperature of a plurality of evaporator sections equably, thereby can discharge the dew that generates on the evaporimeter each several part surface smoothly.
In order to achieve the above object, the method according to control air-conditioner fan of the present invention may further comprise the steps:
When carrying out cooling operations, detect the temperature of a plurality of evaporimeters;
According to detected temperature in detecting step, obtain the temperature difference between the evaporimeter, determine then whether the temperature difference that obtains is lower than reference value; And
Control fan, if the temperature difference is lower than reference value, just with normal rotary speed drive fan, and if the temperature difference is higher than reference value, just to be different from the normal speed drive fan of normal speed.
The control step preferably includes following substep:
Fan accelerated to be higher than the high-speed of normal speed;
According to quickening fan, determine whether the temperature difference reduces afterwards from the detected temperature of evaporimeter;
If the temperature difference has reduced, just keep the high-speed of fan, and if the temperature difference still remains unchanged, just fan is decelerated to low velocity less than normal speed; And
If the temperature difference has reduced after the fan deceleration steps, just keep the low velocity of fan.
Therefore, by reducing the temperature difference between the evaporimeter each several part in the cooling operations, dew will flow down by gravity smoothly along the surface of evaporator section, is discharged to the air-conditioner outside, thereby keeps best room air adjusting function.
Describe preferred example in detail by the reference accompanying drawing, above-mentioned purpose of the present invention and other advantage will become more obvious, in the accompanying drawings:
Fig. 1 is a profile of showing the indoor part of general air conditioning device;
Fig. 2 is the skeleton diagram that the present invention is used for air-conditioner wherein;
Fig. 3 is the controlling party block diagram that is used for illustrating the air-conditioner of Fig. 2 of the present invention; And
Figure 4 and 5 are the flow charts that are used for illustrating according to the method for control air-conditioner fan of the present invention.
Hereinafter, a most preferred embodiment of the present invention is described with reference to the accompanying drawings.Be endowed identical reference number with technical those similar members in the past described in conjunction with Figure 1.
Referring to Fig. 2, air-conditioner comprises the condenser 5 that is used for that refrigerant is compressed into the compressor 7 of high pressure and high temperature and is used for high pressure and hyperthermia induced cryogen are condensed into cryogenic coolant.Here, emit the heat of condenser 5 by being installed near condenser 5 cooling fans 6.In addition, air-conditioner also comprises: be the dropping equipment of capillary 4 forms, so that make the refrigerant of carrying from condenser 5 have low pressure and low temperature; And reception is from the evaporimeter 2 of the refrigerant of capillary 4.Refrigerant is in the evaporation of the inside of evaporimeter 2, thus the cooling ambient air.With fan 3 near evaporimeter 2 cooled airs are circulated, so that make the room pleasantly cool.
As shown in Figure 1, evaporimeter 2 comprises and is bent to multistage first, second and the 3rd evaporator section 2a, 2b and 2c.Give those evaporator sections 2a, 2b and 2c refrigerant distribution from capillary 4.By path 8a, 8b, 8c the evaporimeter each several part being walked abreast is connected with capillary 4.Make refrigerant return compressor 7, and it is introduced condenser 5 again by evaporator section 2a, 2b and 2c.In addition, first, second and three- temperature sensor 31,32 and 33 are placed into place near first, second and the 3rd evaporator section 2a, 2b and 2c respectively.
Referring to Fig. 3, air-conditioner comprises: be used for the conversion and control part 10 of operating air conditioner device; Be used for detecting the room temperature test section 20 of indoor temperature; And evaporator temperature test section 30 with first, second and the 3rd sensor 31,32 and 33, first, second and the 3rd sensor 31,32 and 33 are used for detecting the temperature of each evaporator section 2a, 2b and 2c, for example, the temperature of evaporimeter each several part itself or emit refrigerant pipeline 9a, the 9b of refrigerant, the temperature of 9c.
In addition, a microcomputer 40 is provided, it receives the data from conversion and control part 10, room temperature test section 20 and evaporator temperature test section 30, operates speed adjustable fan drive part 50, cooling fan drive part 60 and driven compressor part 70 then.
Figure 4 and 5 are explanation flow charts according to the method for control air-conditioner fan of the present invention.Hereinafter, with reference to Figure 4 and 5 operation of the present invention is described.
Referring to Fig. 4, when the user is adding under the situation of power supply operation conversion and control part 10, microcomputer 40 drive fan drive parts 50, cooling fan drive part 60 and driven compressor part 70.When driven compressor part 70 drive compression machines 7, as shown in Figure 2, the refrigerant that is compressed into high temperature and high pressure by compressor 7 flows into condenser 5.Then, condenser 5 enters atmosphere to the heat of refrigerant.After this, capillary 4 makes the refrigerant that transports from condenser 5 become low pressure and cryogenic coolant, and evaporimeter 2 receives refrigerant and cooling by evaporation agent from capillary 4, thus the cooling ambient air.Cooled air enters the room by fan 3 circulations.
When carrying out cooling operations, first, second detects first, second and the 3rd evaporator section 2a, 2b and 2c temperature (step S101-102) separately with three- temperature sensor 31,32 and 33 accordingly.Then, detected temperature input microcomputer 40, microcomputer 40 determines whether there is the temperature difference between at least two parts in evaporator section 2a, 2b and 2c.If there is the temperature difference, microcomputer 40 determines whether the temperature difference is lower than predetermined reference value (step S103).
If the temperature difference is lower than reference value, microcomputer 40 is with normal rotary speed drive fan 3 (step S105).If the temperature difference surpasses reference value, the rotary speed of microcomputer 40 control fans 3 is so that reduce the temperature difference (step S104) between evaporimeter each several part 2a, 2b and the 2c, as illustrated with reference to Fig. 5.At first, microcomputer 40 accelerates to speed (step S201) greater than normal speed to fan 3.Microcomputer 40 usefulness first, second and the 3rd sensor 31,32 and 33 detect the temperature of evaporimeter each several part 2a, 2b and 2c again, and whether the temperature difference between definite evaporimeter each several part reduces (step S202-S203).Reduce if determine the temperature difference, microcomputer 40 keeps the acceleration rotary speed (step S204) of fans 3, thus the temperature difference that has kept reducing between evaporimeter each several part 2a, 2b and the 2c.
If ignore the rotary speed that fan 3 has increased, the temperature difference of determining between evaporimeter each several part 2a, 2b and the 2c do not reduce, and microcomputer 40 makes fan 3 slow down (step S205).Then, if the temperature difference of determining between evaporimeter each several part 2a, 2b and the 2c reduces, microcomputer 40 keep blower fan (blowing fan) 3 reduction rotary speed (step S206-S207).Like this, just reduced the temperature difference between evaporimeter each several part 2a, 2b and the 2c, so that between them, set up the even temperature gradient.
According to the method for control air-conditioner fan according to the present invention, can control fan by this way, promptly the rotation of fan is quickened or deceleration, thereby reduced the temperature difference according to the temperature difference between any two parts in the evaporimeter each several part.As a result, the dew amount of generation will be enough to make dew to lean under the gravity current and discharge air-conditioner, thereby can avoid dew is introduced the room, so that can keep best room air adjusting function.
With reference to its most preferred embodiment detail display with describe the while of the present invention, those skilled in the art will appreciate that, do not break away from by additional claim under the situation of clear and definite the spirit and scope of the present invention, wherein can carry out various variation in form and details.
Claims (7)
1. method of controlling air-conditioner, wherein the speed adjustable fan device comprises the evaporimeter of a plurality of evaporator sections to blows air over, this method may further comprise the steps:
A. when carrying out cooling operations, detect the temperature of each evaporator section;
B. according to detected temperature in steps A, obtain the temperature difference between the evaporimeter each several part, determine then whether the temperature difference that obtains is lower than reference value; And
C. control fan, if the described temperature difference is lower than described reference value, just with normal rotary speed drive fan, and if the described temperature difference is higher than described reference value, just to be different from the normal speed drive fan of normal speed.
2. method according to claim 1, wherein said step C further comprises if the temperature difference reduces then keeps the step of described normal speed subsequently.
3. method according to claim 1, wherein said step C further comprises: if the described temperature difference is higher than described reference value, then with greater than the described fan of the high-speed driving of normal speed, and if the described temperature difference is lowered subsequently, then keep at a high speed.
4. method according to claim 3, wherein said step C further comprises: if do not descend with the described temperature difference after making described fan rotation at a high speed, then to be lower than the driven at low speed fan of normal speed, and if the reduction of the described thereafter temperature difference then keeps low speed.
5. method according to claim 4, wherein, described evaporator section has more than two; Described step B comprises the temperature difference between any two parts in this evaporator section of acquisition.
6. method according to claim 4, wherein said step C then further comprises: if described temperature does not reduce after the described fan with high speed rotating, then being lower than the driven at low speed fan of normal speed, and if thereafter the temperature difference be lowered, then keep low speed.
7. method according to claim 1, wherein, described evaporimeter each several part walks abreast and the dropping equipment interconnection that is used for reducing refrigerant pressure, and this method also comprises the step of carrying refrigerant from expansion gear to the evaporimeter each several part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR64520/97 | 1997-11-29 | ||
| KR1019970064520A KR19990043508A (en) | 1997-11-29 | 1997-11-29 | Evaporator temperature control method of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1218895A true CN1218895A (en) | 1999-06-09 |
Family
ID=19526018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98115618A Pending CN1218895A (en) | 1997-11-29 | 1998-06-30 | Method for controlling fan speed of evaporator of air conditioner |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11230606A (en) |
| KR (1) | KR19990043508A (en) |
| CN (1) | CN1218895A (en) |
| ES (1) | ES2158756B1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486679A (en) * | 2012-06-07 | 2014-01-01 | 苏州昆拓热控系统股份有限公司 | Cabinet type air conditioner |
| CN104454611A (en) * | 2014-12-01 | 2015-03-25 | 南车株洲电力机车有限公司 | Rail transit vehicle, and brake resistor blower control system thereof and method |
| CN107143994A (en) * | 2016-03-01 | 2017-09-08 | 广东美的制冷设备有限公司 | Air-conditioning condensation prevention control method and indoor apparatus of air conditioner |
| CN107166653A (en) * | 2017-05-27 | 2017-09-15 | 广东美的制冷设备有限公司 | Progress control method, operating control device and air conditioner |
| CN112432333A (en) * | 2020-12-04 | 2021-03-02 | 珠海格力电器股份有限公司 | Control method and device of air conditioning system, storage medium and air conditioner |
| CN113091197A (en) * | 2021-03-04 | 2021-07-09 | 珠海格力电器股份有限公司 | Automatic dust removal method for air conditioner outdoor unit and air conditioner |
| CN114630999A (en) * | 2019-11-04 | 2022-06-14 | Lg电子株式会社 | Refrigerator and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052008A (en) * | 2016-05-20 | 2016-10-26 | 弗德里希新能源科技(杭州)股份有限公司 | Adjusting method for condensation temperature and evaporation temperature during unit operation |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385350A (en) * | 1966-02-25 | 1968-05-28 | Carrier Corp | Air conditioning apparatus including condensate preventing means |
| US4041727A (en) * | 1975-09-02 | 1977-08-16 | Borg-Warner Corporation | Evaporator assembly |
| FR2421345B1 (en) * | 1978-03-29 | 1985-06-07 | Dantherm As | AIR COOLER, PREFERABLY IN THE FORM OF A CONDENSING TYPE DRYER |
| FR2474668A1 (en) * | 1980-01-29 | 1981-07-31 | Bonnet Ets | Cold store with variable humidity level - has thermostatically controlled electric fan for evaporating water accumulated either in refrigerating circuit or in de-frosting container |
| JPS5942615Y2 (en) * | 1980-10-16 | 1984-12-13 | 株式会社デンソー | Evaporator |
| DE3305126C2 (en) * | 1981-09-12 | 1987-01-02 | Ing. Rolf Seifert electronic GmbH, 5828 Ennepetal | Air conditioner |
| US4513577A (en) * | 1982-11-19 | 1985-04-30 | Wilson Neill R | Evaporator and method of operation |
| JPS59150241A (en) * | 1983-02-15 | 1984-08-28 | Matsushita Seiko Co Ltd | Device for preventing condensation of dew in air conditioning apparatus |
| JPH0452451A (en) * | 1990-06-20 | 1992-02-20 | Fujitsu General Ltd | Air flow-controlling method for air-conditioner |
| KR960001986B1 (en) * | 1991-01-31 | 1996-02-08 | 삼성전자주식회사 | Refrigerator |
| FI88650C (en) * | 1991-04-09 | 1993-06-10 | Halton Oy | Method of controlling an air conditioner and an air conditioner according to this method |
| NO179227C (en) * | 1994-05-24 | 1996-08-28 | Martinsen As Finn | Frost protection device for heat recoverers |
| US5533352A (en) * | 1994-06-14 | 1996-07-09 | Copeland Corporation | Forced air heat exchanging system with variable fan speed control |
-
1997
- 1997-11-29 KR KR1019970064520A patent/KR19990043508A/en not_active Application Discontinuation
-
1998
- 1998-06-30 CN CN98115618A patent/CN1218895A/en active Pending
- 1998-09-04 ES ES009801869A patent/ES2158756B1/en not_active Expired - Lifetime
- 1998-11-26 JP JP10336121A patent/JPH11230606A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486679A (en) * | 2012-06-07 | 2014-01-01 | 苏州昆拓热控系统股份有限公司 | Cabinet type air conditioner |
| CN104454611A (en) * | 2014-12-01 | 2015-03-25 | 南车株洲电力机车有限公司 | Rail transit vehicle, and brake resistor blower control system thereof and method |
| CN107143994A (en) * | 2016-03-01 | 2017-09-08 | 广东美的制冷设备有限公司 | Air-conditioning condensation prevention control method and indoor apparatus of air conditioner |
| CN107143994B (en) * | 2016-03-01 | 2019-12-20 | 广东美的制冷设备有限公司 | Air conditioner condensation prevention control method and air conditioner indoor unit |
| CN107166653A (en) * | 2017-05-27 | 2017-09-15 | 广东美的制冷设备有限公司 | Progress control method, operating control device and air conditioner |
| CN114630999A (en) * | 2019-11-04 | 2022-06-14 | Lg电子株式会社 | Refrigerator and control method thereof |
| CN114630999B (en) * | 2019-11-04 | 2024-02-13 | Lg电子株式会社 | Refrigerator and control method thereof |
| CN112432333A (en) * | 2020-12-04 | 2021-03-02 | 珠海格力电器股份有限公司 | Control method and device of air conditioning system, storage medium and air conditioner |
| CN113091197A (en) * | 2021-03-04 | 2021-07-09 | 珠海格力电器股份有限公司 | Automatic dust removal method for air conditioner outdoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2158756B1 (en) | 2002-03-01 |
| ES2158756A1 (en) | 2001-09-01 |
| KR19990043508A (en) | 1999-06-15 |
| JPH11230606A (en) | 1999-08-27 |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |