EP1158253A3 - Control circuit for an air conditioner - Google Patents

Control circuit for an air conditioner Download PDF

Info

Publication number
EP1158253A3
EP1158253A3 EP01109518A EP01109518A EP1158253A3 EP 1158253 A3 EP1158253 A3 EP 1158253A3 EP 01109518 A EP01109518 A EP 01109518A EP 01109518 A EP01109518 A EP 01109518A EP 1158253 A3 EP1158253 A3 EP 1158253A3
Authority
EP
European Patent Office
Prior art keywords
control circuit
air conditioner
communication circuit
few
current
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
Application number
EP01109518A
Other languages
German (de)
French (fr)
Other versions
EP1158253A2 (en
EP1158253B1 (en
Inventor
Kazuhiro Mitsubishi Elec. Eng. Co. Ltd. Kazama
Shigenobu Mitsubishi El. Eng. Co. Ltd. Mochizuki
Toshiya Mitsubishi El. Eng. Co. Ltd. Sugiyama
Hiroyasu Mitsubishi El. Eng. Co. Ltd. Yamada
Kazuyuki Mitsubishi El. Eng. Co. Ltd. Katayama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Priority claimed from JP2000151377A external-priority patent/JP3598945B2/en
Priority claimed from JP2000178435A external-priority patent/JP4288831B2/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1158253A2 publication Critical patent/EP1158253A2/en
Publication of EP1158253A3 publication Critical patent/EP1158253A3/en
Application granted granted Critical
Publication of EP1158253B1 publication Critical patent/EP1158253B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)

Abstract

A PTC thermistor (24d) is used in a communication circuit. When AC power source (10) has been erroneously supplied to the communication circuit, the PTC thermistor (24d) is self-heated instantaneously by an over-current and changes its resistance from a few Ω to a few MΩ so as to cut off the over-current to the communication circuit, thereby to protect the communication circuit.
EP01109518A 2000-05-23 2001-04-17 Control circuit for an air conditioner Expired - Lifetime EP1158253B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000151377A JP3598945B2 (en) 2000-05-23 2000-05-23 Communication circuit protection device for air conditioner
JP2000151377 2000-05-23
JP2000178435 2000-06-14
JP2000178435A JP4288831B2 (en) 2000-06-14 2000-06-14 Control circuit of separate air conditioner

Publications (3)

Publication Number Publication Date
EP1158253A2 EP1158253A2 (en) 2001-11-28
EP1158253A3 true EP1158253A3 (en) 2003-02-05
EP1158253B1 EP1158253B1 (en) 2007-01-24

Family

ID=26592389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109518A Expired - Lifetime EP1158253B1 (en) 2000-05-23 2001-04-17 Control circuit for an air conditioner

Country Status (3)

Country Link
EP (1) EP1158253B1 (en)
AU (1) AU753916C (en)
ES (1) ES2276725T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3806882B2 (en) 2004-11-29 2006-08-09 ダイキン工業株式会社 Air conditioner
JP2009079811A (en) * 2007-09-26 2009-04-16 Sanyo Electric Co Ltd Air conditioning system and indoor unit
JP6128201B1 (en) * 2015-12-28 2017-05-17 ダイキン工業株式会社 Power supply device, inverter device using the power supply device, converter device, refrigeration device using the inverter device or converter device, and air purifier
AU2018417096B2 (en) * 2018-03-26 2022-02-10 Mitsubishi Electric Corporation Air conditioner
CN112460747B (en) * 2020-11-19 2021-11-23 珠海格力电器股份有限公司 Communication control method and device of split air conditioner, storage medium and lower computer
CN114234549A (en) * 2021-12-23 2022-03-25 珠海格力电器股份有限公司 Refrigeration equipment, control method thereof, storage medium and processor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60211252A (en) * 1984-04-06 1985-10-23 Hitachi Ltd Erroneous connection preventing circuit
JPH06123479A (en) * 1992-10-12 1994-05-06 Sharp Corp Air conditioner
JPH07133950A (en) * 1993-11-09 1995-05-23 Sharp Corp Signal transmission circuit of air conditioner
JPH0998192A (en) * 1995-09-29 1997-04-08 Mitsubishi Heavy Ind Ltd Protector for bidirectional signal transfer circuit
US5642857A (en) * 1995-03-30 1997-07-01 Mitsubishi Denki Kabushiki Kaisha Control apparatus for multi-air-conditioner
WO1999034152A1 (en) * 1997-12-29 1999-07-08 Daikin Industries, Ltd. Indoor-outdoor communication device in air conditioner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10160302A (en) * 1996-11-25 1998-06-19 Hitachi Ltd Air conditioner
JPH10227510A (en) * 1997-02-13 1998-08-25 Fujitsu General Ltd Method of controlling air conditioner
JP3550485B2 (en) * 1997-06-27 2004-08-04 東芝キヤリア株式会社 DC power supply and air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60211252A (en) * 1984-04-06 1985-10-23 Hitachi Ltd Erroneous connection preventing circuit
JPH06123479A (en) * 1992-10-12 1994-05-06 Sharp Corp Air conditioner
JPH07133950A (en) * 1993-11-09 1995-05-23 Sharp Corp Signal transmission circuit of air conditioner
US5642857A (en) * 1995-03-30 1997-07-01 Mitsubishi Denki Kabushiki Kaisha Control apparatus for multi-air-conditioner
JPH0998192A (en) * 1995-09-29 1997-04-08 Mitsubishi Heavy Ind Ltd Protector for bidirectional signal transfer circuit
WO1999034152A1 (en) * 1997-12-29 1999-07-08 Daikin Industries, Ltd. Indoor-outdoor communication device in air conditioner

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 066 (M - 461) 15 March 1986 (1986-03-15) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 418 (M - 1650) 5 August 1994 (1994-08-05) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08 29 September 1995 (1995-09-29) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 08 29 August 1997 (1997-08-29) *

Also Published As

Publication number Publication date
ES2276725T3 (en) 2007-07-01
AU2489201A (en) 2001-12-13
AU753916C (en) 2005-12-22
EP1158253A2 (en) 2001-11-28
AU753916B2 (en) 2002-10-31
EP1158253B1 (en) 2007-01-24

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