JPS5478850A - Temperature control circuit for air conditioner - Google Patents

Temperature control circuit for air conditioner

Info

Publication number
JPS5478850A
JPS5478850A JP14606977A JP14606977A JPS5478850A JP S5478850 A JPS5478850 A JP S5478850A JP 14606977 A JP14606977 A JP 14606977A JP 14606977 A JP14606977 A JP 14606977A JP S5478850 A JPS5478850 A JP S5478850A
Authority
JP
Japan
Prior art keywords
temperature control
comparators
temperature
control circuit
point
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
Application number
JP14606977A
Other languages
Japanese (ja)
Inventor
Yuhei Abe
Katsuo Mori
Takashi Hoshino
Yoshimune Hagiwara
Katsuhiko Yabe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14606977A priority Critical patent/JPS5478850A/en
Priority to DE19782852761 priority patent/DE2852761A1/en
Publication of JPS5478850A publication Critical patent/JPS5478850A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/523—Indication arrangements, e.g. displays for displaying temperature data
    • 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
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To ensure a confortable temperature control all through the year simply in response to the operation of power source SW by separately providing set temperatures for cooling and heating.
CONSTITUTION: When main controls SW 13 and 14 are closed, an indoor fan motor 20 and a temperature control circuit are connected to the power source. A bridge circuit comprising a thermistor 1, voltage regulators VR 2 and 3 and a resistance detects the room temperature. Reference signals detected at either end of a voltage regulator VR2 are respectively inputted to comparators 4 and 5, at other end of which input is received from a connection point between the thermistor 1 and the resistance. Resistances 6 and 7 each determine the range of hysteresis of the respective comparators. The range of hysteresis is so arranged that the active regions of the comparators do not overlap. Accordingly, the active region of the comparator 4 is at a high level when the temperature exceeds a point Te as illustrated while it is at a low level when the temperature is down to a point Tf.
COPYRIGHT: (C)1979,JPO&Japio
JP14606977A 1977-12-07 1977-12-07 Temperature control circuit for air conditioner Pending JPS5478850A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14606977A JPS5478850A (en) 1977-12-07 1977-12-07 Temperature control circuit for air conditioner
DE19782852761 DE2852761A1 (en) 1977-12-07 1978-12-06 Temp. control for air conditioning system equipment - uses four different room temp. dependent signals to control cooling or heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14606977A JPS5478850A (en) 1977-12-07 1977-12-07 Temperature control circuit for air conditioner

Publications (1)

Publication Number Publication Date
JPS5478850A true JPS5478850A (en) 1979-06-23

Family

ID=15399372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14606977A Pending JPS5478850A (en) 1977-12-07 1977-12-07 Temperature control circuit for air conditioner

Country Status (2)

Country Link
JP (1) JPS5478850A (en)
DE (1) DE2852761A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687731A (en) * 1979-12-18 1981-07-16 Nippon P-Mc Kk Automatic controller for using water as heat source type air conditioning facility
JPS5891636U (en) * 1981-12-16 1983-06-21 三菱電機株式会社 Air conditioner control device
JPS5996564U (en) * 1982-12-20 1984-06-30 東芝熱器具株式会社 Temperature control device for heating and cooling equipment
JPS6115032A (en) * 1984-06-29 1986-01-23 Shimizu Constr Co Ltd Method for adjusting indoor environment
JPS6141839A (en) * 1984-08-01 1986-02-28 Matsushita Electric Ind Co Ltd Cooling/heating automatic switching control device for air conditioner
JPS61243240A (en) * 1985-04-19 1986-10-29 Matsushita Electric Ind Co Ltd Operation control device for air handling unit
JPH0328649A (en) * 1989-06-27 1991-02-06 Kajima Corp Controlling method for heat pump type air conditioner
JPH03144246A (en) * 1989-10-30 1991-06-19 Daikin Ind Ltd Operation control device for air conditioner
JPH03144245A (en) * 1989-10-30 1991-06-19 Daikin Ind Ltd Operation control device for air conditioner
JPH03148546A (en) * 1989-11-02 1991-06-25 Daikin Ind Ltd Operation controller for air conditioner

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399862A (en) * 1981-08-17 1983-08-23 Carrier Corporation Method and apparatus for proven demand air conditioning control
NZ201460A (en) * 1981-08-17 1986-11-12 Allware Agencies Ltd Multipurpose microprocessor controlled heating and cooling fan
EP0072663B1 (en) * 1981-08-17 1986-07-30 Kemtron International (Holdings) Limited Multi-purpose fan
EP0104872A3 (en) * 1982-09-22 1985-01-23 Dunham-Bush Inc. Air conditioning and compressor control system
US5058388A (en) * 1989-08-30 1991-10-22 Allan Shaw Method and means of air conditioning
KR920016791A (en) * 1991-02-01 1992-09-25 이헌조 Louver position and fan speed control circuit of air conditioner
WO1992020973A1 (en) * 1991-05-24 1992-11-26 Luminis Pty. Ltd. Air conditioning for humid climates

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687731A (en) * 1979-12-18 1981-07-16 Nippon P-Mc Kk Automatic controller for using water as heat source type air conditioning facility
JPS5891636U (en) * 1981-12-16 1983-06-21 三菱電機株式会社 Air conditioner control device
JPS5996564U (en) * 1982-12-20 1984-06-30 東芝熱器具株式会社 Temperature control device for heating and cooling equipment
JPS6115032A (en) * 1984-06-29 1986-01-23 Shimizu Constr Co Ltd Method for adjusting indoor environment
JPS6141839A (en) * 1984-08-01 1986-02-28 Matsushita Electric Ind Co Ltd Cooling/heating automatic switching control device for air conditioner
JPH0259375B2 (en) * 1984-08-01 1990-12-12 Matsushita Electric Ind Co Ltd
JPS61243240A (en) * 1985-04-19 1986-10-29 Matsushita Electric Ind Co Ltd Operation control device for air handling unit
JPH0328649A (en) * 1989-06-27 1991-02-06 Kajima Corp Controlling method for heat pump type air conditioner
JPH03144246A (en) * 1989-10-30 1991-06-19 Daikin Ind Ltd Operation control device for air conditioner
JPH03144245A (en) * 1989-10-30 1991-06-19 Daikin Ind Ltd Operation control device for air conditioner
JPH03148546A (en) * 1989-11-02 1991-06-25 Daikin Ind Ltd Operation controller for air conditioner

Also Published As

Publication number Publication date
DE2852761A1 (en) 1979-10-25

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