EP0776450B1 - Circuiterie permettant d'actionner une electrovanne a excitation electrique - Google Patents

Circuiterie permettant d'actionner une electrovanne a excitation electrique Download PDF

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Publication number
EP0776450B1
EP0776450B1 EP95925840A EP95925840A EP0776450B1 EP 0776450 B1 EP0776450 B1 EP 0776450B1 EP 95925840 A EP95925840 A EP 95925840A EP 95925840 A EP95925840 A EP 95925840A EP 0776450 B1 EP0776450 B1 EP 0776450B1
Authority
EP
European Patent Office
Prior art keywords
switching arrangement
arrangement according
time delay
flow medium
valve
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 - Lifetime
Application number
EP95925840A
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German (de)
English (en)
Other versions
EP0776450A1 (fr
Inventor
Georg Strauss
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0776450A1 publication Critical patent/EP0776450A1/fr
Application granted granted Critical
Publication of EP0776450B1 publication Critical patent/EP0776450B1/fr
Anticipated expiration legal-status Critical
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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

  • the invention relates to a circuit arrangement for operation an electrically controllable solenoid valve with at least one valve actuator that can be brought into two working positions, by adjusting each one to the respective working position Corresponding one charged with a flow medium Flow path is selectable.
  • Circuit arrangements according to the preamble of the claim 1 are for example in refrigeration units with several compartments different temperature to control from there to Upcoming, bistable solenoid valves in use, based on which of a compressor in a refrigeration cycle generated refrigerant flow to the evaporators in the compartments different temperature depending on the cooling demand becomes.
  • the valve actuator of the bistable Solenoid valve according to the refrigeration requirement from the storage compartments the refrigerator in one or the other working position emotional. This happens by the electromagnets on the valve actuator force exerted as a result of which the valve actuator in its locking position is accelerated, with the Closing process generates a clearly audible noise becomes.
  • the invention has for its object to propose measures, which in a simple way a quiet Enable operation of an electrically controllable solenoid valve.
  • Circuit arrangement has means by which the adjustment the valve actuator in the other working position following an application of at least the Solenoid valve formed section of the flow path flow medium present predominantly in liquid fractions he follows.
  • the invention provides that the means for Acting on the section formed by the solenoid valve the flow path with liquid flow medium by a time delay in the adjustment of the valve actuator regarding an activation of the flow medium driving means is achieved.
  • a time delay is particularly easy to generate, if after a further advantageous embodiment of the object the invention provides that the temporal Substantially delaying means is formed electromechanically trained timer.
  • Such a timer is characterized by its robust Construction from.
  • the invention provides that the time delay effective means by one of electronic components composite timer is formed.
  • the magnitude of the time delay can can also be varied easily afterwards.
  • such a timer is extremely inexpensive realizable.
  • the invention provides that the temporal Delay is in the range between 30 s and 90 s.
  • a time delay has proven to be particularly applicable result if according to a next advantageous embodiment the subject of the invention is provided that the temporal Delay is 60 s.
  • the object of the invention is that for driving of the flow medium serving as a refrigerant compressor is trained.
  • FIG. 1 shows a fridge-freezer combination 10, whose heat-insulating housing 11 two by one heat-insulating partition 12 thermally separated, arranged vertically one above the other and with separate Doors 13 and 14 have lockable storage compartments.
  • the higher lying lockable with the door 13 Storage compartment designed as a cooling compartment 15, which with vertical Distances arranged one above the other, for parking of refrigerated serving stands 16 is equipped.
  • the others arranged below the cooling compartment 15, by the latter storage compartment separated by the heat-insulating partition 12 is designed as a freezer compartment 17, which for Frozen food can be pulled out like a drawer 18 has.
  • Both the refrigerator compartment 15 and the freezer compartment 17 is for Maintaining its intended storage room temperature equipped with evaporators, not shown, which integrated in a refrigeration circuit, also not shown are within which a the evaporator with liquid Refrigerant supplying compressor is arranged, which is operated intermittently, the inputs and Shutdown phases of the compressor from those in the storage compartments prevailing temperatures are dependent.
  • evaporators not shown
  • a the evaporator with liquid Refrigerant supplying compressor is arranged, which is operated intermittently, the inputs and Shutdown phases of the compressor from those in the storage compartments prevailing temperatures are dependent.
  • the digital signal "A" present on the output side at the evaluation logic 19 represents the input signal for the circuit arrangement 30, which is equipped on the input side with two RC elements which serve to achieve different time periods. These are formed by two ohmic resistors 31 and 32 arranged in parallel with different resistance values and a common capacitor 33 connected in series, the resistor 32 equipped with the lower resistance value being preceded by a diode 34 which, with its cathode connection to the Resistor 32 is connected so that it takes place via the charging process of the capacitor 33 via the higher-resistance resistor 31.
  • the voltage potential generated by the charging process on the capacitor 33 is connected to the merged inputs of a NAND gate 35, the output signal of which is fed to the base of a PNP transistor 36, the emitter connection of which is connected to a DC voltage supply "U B ", while its collector connection is connected via one of the Collector current-limiting ohmic resistor 37 is connected to ground potential.
  • the gate connection for tapping the ignition current of a triac 38 is arranged, with its second main electrode connection a monostable coupled to the line pole "L" of a 230 volt AC voltage , two flow paths switching solenoid valve 39 is connected.
  • the other main electrode connection of the triac 38 is connected to the zero pole "N" of the AC voltage supply, which at the same time also forms the ground connection for this main electrode of the triac 38.
  • One for the cooling compartment 15 due to the increased therein Storage temperature existing cooling demand is at the exit the evaluation logic 19 by a logic one for the output signal "A" indicates which one is the activation of the refrigerant compressor and on the other hand one Switching process of the monostable solenoid valve 39 from its Rest position for changing the flow path for the Refrigerant to the evaporator of the refrigerator compartment 15 means.
  • circuit arrangement 30 instead of the discrete electronic in the exemplary embodiment Components of circuit arrangement 30 it is also conceivable whose and the evaluation logic 19 underlying function by an appropriately programmed Microprocessor replicate, so that the time delayed start-up of the solenoid valve 39 with respect the compressor through an appropriate software program could be accomplished.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compressor (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (8)

  1. Circuiterie permettant d'actionner une électrovanne à excitation électrique, comprenant un actionneur de vanne susceptible d'être amené dans au moins deux positions de travail, dont le réglage permet de sélectionner respectivement une voie d'écoulement alimentée par un fluide et correspondant à la position de travail respective, caractérisée en ce que la circuiterie comporte des moyens grâce auxquels le réglage de l'actionneur de vanne sur respectivement l'autre position de travail s'effectue à la suite d'une alimentation par un fluide, principalement présent en parts liquides, au moins du tronçon de la voie d'écoulement formé par l'électrovanne (39).
  2. Circuiterie selon la revendication 1, caractérisée en ce que les moyens pour alimenter par le fluide le tronçon de la voie d'écoulement formé par l'électrovanne (39) sont effectués par une temporisation du réglage de l'actionneur de vanne par rapport à une activation d'un moyen actionnant le fluide.
  3. Circuiterie selon la revendication 2, caractérisée en ce que les moyens engendrant la temporisation sont formés par un élément de temporisation de conception essentiellement électromécanique.
  4. Circuiterie selon la revendication 2, caractérisée en ce que les moyens engendrant la temporisation sont formés par un élément de temporisation (31, 33) composé de composants électroniques (31, 33).
  5. Circuiterie selon l'une des revendications 2 à 4, caractérisée en ce que la temporisation est comprise entre 30 s et 90 s.
  6. Circuiterie selon l'une des revendications 2 à 5, caractérisée en ce que la temporisation est de 60 s.
  7. Circuiterie selon la revendication 2, caractérisée en ce que le moyen servant à l'actionnement du fluide est réalisé sous forme de compresseur frigorifique.
  8. Meuble réfrigérant, en particulier réfrigérateur ou congélateur, ou combiné réfrigérateur/congélateur, caractérisé par une circuiterie (30) selon l'une quelconque des revendications 1 à 7.
EP95925840A 1994-08-23 1995-07-06 Circuiterie permettant d'actionner une electrovanne a excitation electrique Expired - Lifetime EP0776450B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4429919 1994-08-23
DE4429919A DE4429919A1 (de) 1994-08-23 1994-08-23 Schaltungsanordnung zum Betrieb eines elektrisch ansteuerbaren Magnetventils
PCT/EP1995/002621 WO1996006317A1 (fr) 1994-08-23 1995-07-06 Circuiterie permettant d'actionner une electrovanne a excitation electrique

Publications (2)

Publication Number Publication Date
EP0776450A1 EP0776450A1 (fr) 1997-06-04
EP0776450B1 true EP0776450B1 (fr) 1998-10-07

Family

ID=6526379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95925840A Expired - Lifetime EP0776450B1 (fr) 1994-08-23 1995-07-06 Circuiterie permettant d'actionner une electrovanne a excitation electrique

Country Status (10)

Country Link
US (1) US6209332B1 (fr)
EP (1) EP0776450B1 (fr)
CN (1) CN1093247C (fr)
BR (1) BR9508754A (fr)
DE (2) DE4429919A1 (fr)
DK (1) DK0776450T3 (fr)
ES (1) ES2125028T3 (fr)
PL (1) PL179670B1 (fr)
TR (1) TR199500941A2 (fr)
WO (1) WO1996006317A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3462156B2 (ja) * 1999-11-30 2003-11-05 株式会社東芝 冷蔵庫
US6725680B1 (en) * 2002-03-22 2004-04-27 Whirlpool Corporation Multi-compartment refrigerator control algorithm for variable speed evaporator fan motor
US6952930B1 (en) 2003-03-31 2005-10-11 General Electric Company Methods and apparatus for controlling refrigerators
KR20050038293A (ko) * 2003-10-21 2005-04-27 엘지전자 주식회사 냉장고의 밸브제어방법
DE102010001458A1 (de) * 2010-02-01 2011-08-04 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Kältegerät und Kältemaschine dafür
US10231505B2 (en) 2015-05-28 2019-03-19 Nike, Inc. Article of footwear and a charging system for an article of footwear
CN110805733B (zh) * 2019-11-12 2021-12-07 武汉海王新能源工程技术有限公司 一种核电用阀门的驱动装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001378A (en) * 1959-02-12 1961-09-26 Gen Motors Corp Refrigerating apparatus
US4439998A (en) * 1980-09-04 1984-04-03 General Electric Company Apparatus and method of controlling air temperature of a two-evaporator refrigeration system
US4651535A (en) * 1984-08-08 1987-03-24 Alsenz Richard H Pulse controlled solenoid valve
US4873836A (en) * 1988-06-06 1989-10-17 Eaton Corporation Flow noise suppression for electronic valves

Also Published As

Publication number Publication date
DE59503877D1 (de) 1998-11-12
PL179670B1 (en) 2000-10-31
US6209332B1 (en) 2001-04-03
PL318461A1 (en) 1997-06-09
DE4429919A1 (de) 1996-02-29
BR9508754A (pt) 1998-01-13
EP0776450A1 (fr) 1997-06-04
DK0776450T3 (da) 1999-06-21
ES2125028T3 (es) 1999-02-16
CN1093247C (zh) 2002-10-23
WO1996006317A1 (fr) 1996-02-29
CN1156503A (zh) 1997-08-06
TR199500941A2 (tr) 1996-06-21

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