JPH0278873A - Defrost operation controller for refrigerating device - Google Patents

Defrost operation controller for refrigerating device

Info

Publication number
JPH0278873A
JPH0278873A JP23052888A JP23052888A JPH0278873A JP H0278873 A JPH0278873 A JP H0278873A JP 23052888 A JP23052888 A JP 23052888A JP 23052888 A JP23052888 A JP 23052888A JP H0278873 A JPH0278873 A JP H0278873A
Authority
JP
Japan
Prior art keywords
drain pan
hot gas
drain
defrost operation
switching
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
JP23052888A
Other versions
JPH0689966B2 (en
Inventor
Katsuyuki Sawai
Original Assignee
Daikin Ind 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 Daikin Ind Ltd filed Critical Daikin Ind Ltd
Priority to JP63230528A priority Critical patent/JPH0689966B2/en
Publication of JPH0278873A publication Critical patent/JPH0278873A/en
Publication of JPH0689966B2 publication Critical patent/JPH0689966B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the unnecessary temperature rise in a refrigerator and improve the using efficiency of electric power by a method wherein a means, supplying a drain pan heater with hot gas necessary for only the actual melting of frozen drain in a drain pan upon defrost operation by hot gas, is provided in the title device.
CONSTITUTION: Upon defrost operation effected by a first switching and controlling means 21, the switching of a second three-way valve 13 is controlled by a second switching and controlling valve 24 so that hot gas flows to the side of a drain pan heater 11. Frozen drain in a drain pan 15 is molten and the clogging of drain may be prevented effectively. When ice in the drain pan 15 is molten, it is detected by a defrost detecting means 23. The second three- way valve 13 is controlled so as to be switched so that the hot gas flows to the side of a partial bypass passage 12 and not flows to the side of the drain pan heater 11 in a hot gas bypass passage 9. Accordingly, the drain pan 15, the fins of an evaporator 4, tube plates, a rear plate and the like are not heated unnecessary and a predetermined defrost operation may be effected.
COPYRIGHT: (C)1990,JPO&Japio
JP63230528A 1988-09-13 1988-09-13 Defrost operation control device for refrigeration equipment Expired - Lifetime JPH0689966B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63230528A JPH0689966B2 (en) 1988-09-13 1988-09-13 Defrost operation control device for refrigeration equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63230528A JPH0689966B2 (en) 1988-09-13 1988-09-13 Defrost operation control device for refrigeration equipment

Publications (2)

Publication Number Publication Date
JPH0278873A true JPH0278873A (en) 1990-03-19
JPH0689966B2 JPH0689966B2 (en) 1994-11-14

Family

ID=16909161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63230528A Expired - Lifetime JPH0689966B2 (en) 1988-09-13 1988-09-13 Defrost operation control device for refrigeration equipment

Country Status (1)

Country Link
JP (1) JPH0689966B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008304137A (en) * 2007-06-08 2008-12-18 Mitsubishi Electric Corp Refrigerating unit
JP2013178032A (en) * 2012-02-28 2013-09-09 Mitsubishi Heavy Ind Ltd Vehicle heat pump air conditioner and method for operating the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148571U (en) * 1982-03-29 1983-10-05
JPS6129652A (en) * 1984-07-19 1986-02-10 Daikin Ind Ltd Refrigerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148571U (en) * 1982-03-29 1983-10-05
JPS6129652A (en) * 1984-07-19 1986-02-10 Daikin Ind Ltd Refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008304137A (en) * 2007-06-08 2008-12-18 Mitsubishi Electric Corp Refrigerating unit
JP2013178032A (en) * 2012-02-28 2013-09-09 Mitsubishi Heavy Ind Ltd Vehicle heat pump air conditioner and method for operating the same

Also Published As

Publication number Publication date
JPH0689966B2 (en) 1994-11-14

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