EP1726891B1 - Method of controlling vanes of ceiling type air conditioner - Google Patents

Method of controlling vanes of ceiling type air conditioner Download PDF

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Publication number
EP1726891B1
EP1726891B1 EP06009544A EP06009544A EP1726891B1 EP 1726891 B1 EP1726891 B1 EP 1726891B1 EP 06009544 A EP06009544 A EP 06009544A EP 06009544 A EP06009544 A EP 06009544A EP 1726891 B1 EP1726891 B1 EP 1726891B1
Authority
EP
European Patent Office
Prior art keywords
angle
vanes
air conditioner
type air
ceiling type
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.)
Expired - Fee Related
Application number
EP06009544A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1726891A1 (en
Inventor
Ju Youn Lee
Ho Jung Kim
Kwan Ho Yum
Ho Seon Choi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1726891A1 publication Critical patent/EP1726891A1/en
Application granted granted Critical
Publication of EP1726891B1 publication Critical patent/EP1726891B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24F11/70—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
    • 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
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling

Definitions

  • the present invention relates to an air conditioner, and more particularly, to a method of controlling a ceiling type air conditioner to rapidly generate uniform airflow in a room.
  • air conditioners are grouped into a stand type air conditioner, and a wall type air conditioner, and perform cooling and heating operations by adjusting direction of airflow using vanes.
  • the ceiling type air conditioner is mounted in the ceiling to supply airflow of a predetermined temperature to a room.
  • the ceiling type air conditioner maintains the predetermined temperature by opening/closing the vanes positioned at the side of the ceiling type air conditioner to adjust the airflow.
  • JP 11 063627A describes an air conditioner wherein the angle of a flap is controlled based on indoor and outdoor temperatures detected.
  • a refrigerating cycle device includes a compressor 10 for compressing refrigerant into high-temperature-and-high-pressure refrigerant, a condenser 20 for changing the high-temperature-and-high-pressure refrigerant into a liquid refrigerant and discharging latent heat of the refrigerant to the exterior, an expansion device 30 for reducing the pressure of the refrigerant whose phase is changed into the liquid phase, and an evaporator 40 for evaporating the liquid refrigerant expanded by the expansion device 30 into vapor phase and absorbing external heat.
  • a compressor 10 for compressing refrigerant into high-temperature-and-high-pressure refrigerant
  • a condenser 20 for changing the high-temperature-and-high-pressure refrigerant into a liquid refrigerant and discharging latent heat of the refrigerant to the exterior
  • an expansion device 30 for reducing the pressure of the refrigerant whose phase is changed into the liquid phase
  • the condenser 20 and the evaporator 40 perform heat-exchange with the exterior, they are known as heat-exchangers.
  • the above-described refrigerating cycle device is employed in refrigerators for storing food in a fresh state using heat discharged from the condenser 20 and chilled air generated by the evaporator 40 and in air conditioners for maintaining comfortable indoor environment.
  • FIG. 2 is a view illustrating an external view of an apparatus to which a vane control of a conventional ceiling type air conditioner is applied.
  • the apparatus as shown in the drawing, performs air conditioning by opening/closing four vanes 21 to 24 simultaneously using a single stepping motor 25, a gear train 26, and a universal joint 27.
  • the opening/closing of the vanes 21 to 24 is carried out to heat a floor rapidly when indoor temperature is under a predetermined temperature.
  • the vanes 21 to 24 are simultaneously opened at a predetermined angle to guide the airflow to flow in desired directions.
  • the ceiling type air conditioner since the ceiling type air conditioner is mounted on the ceiling, in comparison to the conventional air conditioner installed at a predetermined position of an indoor to condition air within a restricted space, the ceiling type air conditioner conditions and disperses indoor air uniformly.
  • present invention is directed to a method of controlling vanes of a ceiling type air conditioner that substantially obviate one or more problems due to limitations and disadvantages of the related art.
  • a first object of the present invention is to provide a method of controlling vanes of a ceiling type air conditioner to rapidly supply heated/chilled airflow to the floor when initiating the ceiling type air conditioner to satisfy persons in the indoor region.
  • a second object of the present invention is to provide a method of controlling vanes of a ceiling type air conditioner to supply optimized airflow as time passes to minimize discomfort that a user may feel due to the airflow.
  • a method of controlling vanes of a ceiling type air conditioner including a plurality of the vanes for adjusting a direction of an airflow, the method includes the features of independent claims 1, 4 or 7.
  • the airflow with the maximum rate can be supplied when initiating the air conditioner such that the chilled/heated airflow rapidly reaches the floor to improve the satisfaction of people in the indoor region.
  • FIG. 1 is a view illustrating a refrigerating cycle device of a conventional air conditioner
  • FIG. 2 is a view illustrating an external appearance of an apparatus to which a vane control of a conventional ceiling type air conditioner is applied;
  • FIG. 3 is a flowchart illustrating a vane controlling method of an air conditioner according to a preferred embodiment of the present invention.
  • FIG. 4 is a view illustrating a direction of an airflow generated by the vane controlling method of an air conditioner according to the preferred embodiment of the present invention.
  • FIGS. 3 and 4 Reference will now be made in detail to the preferred embodiments of a method of controlling vanes of a ceiling type air conditioner, examples of which are illustrated in FIGS. 3 and 4 .
  • the method of controlling vanes of the ceiling type air conditioner in order to increase feeling of satisfaction of people in a room with regard to the indoor air conditioning when the cooling/heating is initiated, controls a plurality of vanes 21 to 24 simultaneously and supplies a direct airflow.
  • the method is characterized in that a rate of the indoor airflow varies as time passes to minimize discomfort of people in a room due to the indoor airflow.
  • FIG. 3 illustrates the method of controlling vanes of the ceiling type air conditioner in a heating mode, and the method of controlling vanes of a ceiling type air conditioner according to the preferred embodiment of the present invention will be described in detail with reference to FIG. 3 as follows.
  • a user starts the heating mode, and it is determined whether or not the indoor temperature is under a predetermined temperature (S30).
  • the angle of all the vanes 21 to 24 is controlled to be a maximum angle, that is, the fourth angle X4 such that the heated airflow rapidly reaches the floor.
  • the rate of the airflow is increased to be a maximum rate to supply a direct airflow for increasing body temperatures of people in the indoor within a short period of time.
  • the angle of all the vanes 21 to 24 is adjusted to be a third angle X3, less than the fourth angle X4, to decrease the rate of the airflow (S38).
  • the angle of all the vanes 21 to 24 is adjusted to be a second angle X2, less than the third angle X3, to further decrease the rate of the airflow (S42).
  • the angle of all the vanes 21 to 24 is adjusted to be a first angel X1, less than the second angle X2, to further decrease the rate of the airflow (S46).
  • the angle of the vanes 21 to 24 is decreased from the fourth angle X4 to the first angle X1 step by step by a unit of the predetermine time T to vary the rate of the airflow so that the indoor temperature can be increased while minimizing discomfort that people in the indoor region feel.
  • the mode of operation of the ceiling type air conditioner is switched to an auto-swing mode in which the angle of all the vanes 21 to 24 continuously varies within a range of the first angle X1 to the fourth angle X4 (S50).
  • the angle of the vanes 21 to 24 varies from the fourth angle X4 to the first angle X1 step by step to rapidly increase the indoor temperature, and after that, when the indoor temperature is increased somewhat (that is, when the angle of the vanes 21 to 24 has reached the first angle X1 as the minimum angle), the operation mode of the ceiling type air conditioner is switched to the auto-swing mode to minimize the discomfort that people in the indoor region feel.
  • the auto-swing mode in which the angle of the vanes 21 to 24 continuously varies is directly started to carry out the air conditioning.
  • the vanes 21 to 24 may be controlled to directly enter the auto-swing mode when the process of decreasing the angle of the vanes 21 to 24 from the fourth angle X4 to the first angle X1 step by step is omitted and when the predetermined time has elapsed at a state of driving the angle of the vanes 21 to 24 at the fourth angle X4 when initiating the ceiling type air conditioner.
  • All the vanes 21 to 24 of the ceiling type air conditioner employing the method of controlling vanes according to the preferred embodiment of the present invention, as shown in FIG. 4 , are controlled such that the angle of the vanes 21 to 24 varies within the range of the minimum angle X1 to the maximum angle X4.
  • the angle within the range of the minimum angle X1 to the maximum angle X4 is divided into multiple angles to control the angle of the vanes 21 to 24 step by step.
  • the fourth angle X4 is the maximum angle, which is set to about 90 degrees
  • the first angle X1 is the minimum angle, which is set to an angle above 20 degrees.
  • the angel of the vanes 21 to 24 are set such that the first angle X1 is 30 degrees, the second angle X2 is 40 degrees, the third angle X3 is 60 degrees, and the fourth angle X4 is 70 degrees.
  • a method of controlling vanes of the ceiling type air conditioner in a cooling mode is similar to the method of controlling vanes of a ceiling type air conditioner in the heating mode.
  • the angle of vanes 21 to 24 is controlled to be the maximum angle X4 to supply the airflow with the maximum rate.
  • the chilled airflow rapidly reaches the floor to supply a direct airflow to people in the indoor region.
  • the angle of the vanes 21 to 24 varies step by step to rapidly decrease the indoor temperature and to supply a uniform airflow.
  • the mode of operation of the ceiling type air conditioner is switched to the auto-swing mode to carry out the cooling mode.
  • the airflow with the maximum rate can be supplied when initiating the ceiling type air conditioner such that the chilled/heated airflow rapidly reaches the floor to increase the satisfaction of people in the indoor region with respect to the indoor air conditioning.
  • the rate of the airflow varies as time passes so that the uniform airflow can be rapidly supplied and the air conditioning efficiency can be improved.

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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)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
EP06009544A 2005-05-10 2006-05-09 Method of controlling vanes of ceiling type air conditioner Expired - Fee Related EP1726891B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050038853A KR100640801B1 (ko) 2005-05-10 2005-05-10 천장형 에어컨의 베인 제어방법

Publications (2)

Publication Number Publication Date
EP1726891A1 EP1726891A1 (en) 2006-11-29
EP1726891B1 true EP1726891B1 (en) 2009-08-12

Family

ID=36763152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06009544A Expired - Fee Related EP1726891B1 (en) 2005-05-10 2006-05-09 Method of controlling vanes of ceiling type air conditioner

Country Status (6)

Country Link
US (1) US20060254293A1 (ko)
EP (1) EP1726891B1 (ko)
JP (1) JP2006317142A (ko)
KR (1) KR100640801B1 (ko)
CN (1) CN1862131B (ko)
DE (1) DE602006008382D1 (ko)

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Also Published As

Publication number Publication date
CN1862131A (zh) 2006-11-15
DE602006008382D1 (de) 2009-09-24
CN1862131B (zh) 2013-04-17
EP1726891A1 (en) 2006-11-29
US20060254293A1 (en) 2006-11-16
JP2006317142A (ja) 2006-11-24
KR100640801B1 (ko) 2006-11-02

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