NO158269C - SIGNAL SENSOR FOR CONTROL OF THE DEFROST ON THE AIR SIDE OF THE EVAPOR TO A HEAT PUMP OR LIKE. - Google Patents

SIGNAL SENSOR FOR CONTROL OF THE DEFROST ON THE AIR SIDE OF THE EVAPOR TO A HEAT PUMP OR LIKE.

Info

Publication number
NO158269C
NO158269C NO840332A NO840332A NO158269C NO 158269 C NO158269 C NO 158269C NO 840332 A NO840332 A NO 840332A NO 840332 A NO840332 A NO 840332A NO 158269 C NO158269 C NO 158269C
Authority
NO
Norway
Prior art keywords
sensing device
sensing
heat pump
sensing assembly
air side
Prior art date
Application number
NO840332A
Other languages
Norwegian (no)
Other versions
NO158269B (en
NO840332L (en
Inventor
Wilhelm Korsmeier
Klaus Klein
Original Assignee
Ruhrgas Ag
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 Ruhrgas Ag filed Critical Ruhrgas Ag
Publication of NO840332L publication Critical patent/NO840332L/en
Publication of NO158269B publication Critical patent/NO158269B/en
Publication of NO158269C publication Critical patent/NO158269C/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/11—Sensor to detect if defrost is necessary
    • F25B2700/111—Sensor to detect if defrost is necessary using an emitter and receiver, e.g. sensing by emitting light or other radiation and receiving reflection by a sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

1. A signal transmitter arrangement for controlling the defrosing of the air side of an evaporator means of a heat pump or the like comprising a sensing assembly consisting of a temperature sensing device for measuring the temperature on the surface of said evaporator means and a sensing device responding to the formation of frost or ice, said two sensing devices being coupled to a receiver for the transmission of signals, wherein said signal transmittal arrangement comprises a thermally conductive console (1) attachable to said evaporator means to which said sensing assembly (2) is connected, said temperature sensing device (3) being connected with said sensing assembly in a thermally conductive fashing, and wherein said sensing assembly comprises a photosensitive sensing device (4) constituting the second sensing device the optic axis of said photosensitive sensing device being aligned to an auxiliary matte black reflective surface (12) arranged vertically on said console, said reflective surface having a circular area of reflection (14) convex relative to said sensing assembly (2).
NO840332A 1983-01-29 1984-01-27 SIGNAL SENSOR FOR CONTROL OF THE DEFROST ON THE AIR SIDE OF THE EVAPOR TO A HEAT PUMP OR LIKE. NO158269C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3303054A DE3303054C2 (en) 1983-01-29 1983-01-29 Signal generator for controlling the defrosting of the evaporator of a heat pump

Publications (3)

Publication Number Publication Date
NO840332L NO840332L (en) 1984-07-30
NO158269B NO158269B (en) 1988-05-02
NO158269C true NO158269C (en) 1988-08-10

Family

ID=6189587

Family Applications (1)

Application Number Title Priority Date Filing Date
NO840332A NO158269C (en) 1983-01-29 1984-01-27 SIGNAL SENSOR FOR CONTROL OF THE DEFROST ON THE AIR SIDE OF THE EVAPOR TO A HEAT PUMP OR LIKE.

Country Status (4)

Country Link
EP (1) EP0117425B1 (en)
AT (1) ATE26170T1 (en)
DE (1) DE3303054C2 (en)
NO (1) NO158269C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20050634A1 (en) * 2005-12-19 2007-06-20 Ixfin S P A SYSTEM FOR THE AUTOMATED DEFROSTING OF A REFRIGERATOR SYSTEM.
ITPD20120148A1 (en) * 2012-05-10 2013-11-11 Enerblue S R L HEAT PUMP AND AUTOMATIC DEFROSTING METHOD OF CHECKING A HEAT PUMP
CN112303947A (en) * 2020-11-02 2021-02-02 中科美菱低温科技股份有限公司 Double-evaporator refrigeration system, refrigeration equipment and control method of refrigeration system of refrigeration equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280577A (en) * 1963-11-20 1966-10-25 Matsushita Electric Ind Co Ltd Automatic defrosting control device
FI345773A (en) * 1973-11-08 1975-05-09 Upo Oy
DE2637129A1 (en) * 1976-08-18 1978-02-23 Bosch Gmbh Robert DEVICE FOR DEFROSTING EVAPORATORS IN REFRIGERANT CIRCUITS, IN PARTICULAR OF HEAT PUMPS
DE3001019A1 (en) * 1980-01-12 1981-07-23 Danfoss A/S, 6430 Nordborg DEFROSTING DEVICE FOR THE EVAPORATOR OF A REFRIGERATION SYSTEM
DD152404A1 (en) * 1980-07-28 1981-11-25 Dieter Voekler DEFROST CONTROL FOR THE INTRODUCTION OF DEFROSTING FOR COOLANT EVAPORATOR
US4409795A (en) * 1981-04-03 1983-10-18 Russell Coil Company Demand defrost system
AU7376681A (en) * 1981-06-26 1983-02-02 Richard H. Alsenz Refrigerator defrost control

Also Published As

Publication number Publication date
EP0117425A1 (en) 1984-09-05
NO158269B (en) 1988-05-02
DE3303054C2 (en) 1994-02-10
NO840332L (en) 1984-07-30
ATE26170T1 (en) 1987-04-15
DE3303054A1 (en) 1984-08-02
EP0117425B1 (en) 1987-03-25

Similar Documents

Publication Publication Date Title
US5414257A (en) Moisture sensor for detecting moisture on a windshield
KR100288864B1 (en) Window-mounted optical moisture sensor with light pipe with distal end
US6010095A (en) Icing detector for aircraft
EP0847519B1 (en) Thermal emitted radiation detecting device
US5391891A (en) Moisture sensing device
US6153995A (en) Water drop detection sensor
SE7703664L (en) PROCEDURE AND DEVICE FOR DETECTING ICE COVER ON AN AIRCRAFT BY MICROVAGOR
KR950029085A (en) Raindrop detection sensor, raindrop measurement device using the sensor, wiper drive device using the measurement device, and vehicle using such a device
EP0997360A3 (en) Rain sensor operation on solar reflective glass
EP0737411A1 (en) Light source intensity control device
NO158269C (en) SIGNAL SENSOR FOR CONTROL OF THE DEFROST ON THE AIR SIDE OF THE EVAPOR TO A HEAT PUMP OR LIKE.
CA2012116A1 (en) Optical transmitter power measurement and control
US4620181A (en) Pool alarm system
KR20030048023A (en) Sensor unit for automatically switching lighting devices and a coupling medium for a sensor unit
JPS54119897A (en) Liquid crystal display unit
CA2059656A1 (en) Temperature at which a substance changes state
JPS5742827A (en) Temperature-sensitive optical switch
JPS60174931A (en) Raindrop detector
CA2359251A1 (en) Sensor and method for detecting changes in distance
SU823780A1 (en) Apparatus for regulating snow layer thickness in domestic refrigerator evaporator
GB2142141A (en) Remote surface acoustic wave vibration sensor
ATE30468T1 (en) OPTICAL ICE FLOOR INDICATOR.
JPH0517647Y2 (en)
JPH11287754A (en) Water drop detection sensor with transmission reception function
KR0126049Y1 (en) Indicator's infrared-ray receiving structure using corrosion