CN1126927C - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
CN1126927C
CN1126927C CN97126348A CN97126348A CN1126927C CN 1126927 C CN1126927 C CN 1126927C CN 97126348 A CN97126348 A CN 97126348A CN 97126348 A CN97126348 A CN 97126348A CN 1126927 C CN1126927 C CN 1126927C
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CN
China
Prior art keywords
temperature
chamber
temperature sensor
switch
refrigerating chamber
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Expired - Fee Related
Application number
CN97126348A
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Chinese (zh)
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CN1186214A (en
Inventor
猿田进
江碕猛
前田雅彦
关口康幸
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Toshiba Corp
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Toshiba Corp
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Publication of CN1186214A publication Critical patent/CN1186214A/en
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    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

To prevent temperatures of both a freezing chamber and a specification changing-over chamber from becoming not less than a value of ON-set temperature by a method wherein an operation of a compressor is started when either one of a temperature sensor for a freezer chamber and a temperature sensor for a specification changing-over chamber detects a value more than an ON-setting temperature and finishes when these temperature sensors detect a value less than an OFF-setting temperature. A main body of a refrigerator is provided with a specification changing- over chamber temperature sensor 24 and a freezer chamber temperature sensor 25 for use in sensing a temperature in the specification changing-over chamber and a temperature in the freezer chamber temperature. Each of resistors 26, 27 is connected in series with each of these temperature sensors 24 and 25, and its divided voltage is inputted to a microcomputer 22 and a value of the detected temperature. This microcomputer 22 starts an operation of a motor 23a for a compressor when any one of the specification changing-over chamber temperature sensor 24 and the freezer chamber temperature sensor 25 detects an ON-setting temperature and further stops the motor 23a for the compressor when both temperature sensors 24 and 25 detect the OFF-setting temperature together.

Description

Refrigerator
The present invention relates to refrigerator, this refrigerator has refrigerating chamber and can set the specification switching chamber of reserve temperature in comprising a plurality of reserve temperature bands of cryogenic temperature band.
A kind of refrigerator is arranged recently, have the specification that in comprising a plurality of reserve temperature bands of cryogenic temperature band, to set reserve temperature and switch the chamber.This refrigerator is the compressor operation that begins freeze cycle when refrigerating chamber detects the start design temperature with temperature sensor, and shuts down when detecting the shutdown design temperature.And for specification being switched the temperature that the chamber is controlled at the specification that sets, control device is to switch the chamber according to specification to open and close the throttle setting that switches indoor cool-air feed to specification with the detected temperatures of temperature sensor.
Yet, when adopting this temperature control to construct, just control the running of compressor according to the temperature of refrigerating chamber, so wait under the low temperature condition in the winter time, in case compressor operation can make freezer temperature drop to the shutdown design temperature at short notice, the duration of runs of compressor is very short.So, particularly switch the occasion that the chamber is set to freezing specification in specification, compressor might just shut down before the cryogenic temperature that is cooled to necessity.
In addition, switch the occasion that the temperature sensor used the chamber breaks down in refrigerating chamber or specification, compressor does not just turn round, and might influence the preservation of food.
In view of the foregoing, the object of the present invention is to provide a kind of refrigerator, this refrigerator can control refrigerating chamber well and specification is switched the temperature of chamber, even and switch the chamber at refrigerating chamber with temperature sensor, specification and take place also can reduce harmful effect when unusual as far as possible to food preservation with temperature sensor.
To achieve these goals, technical scheme one of the present invention is a kind of refrigerator, has:
The refrigerating chamber that refrigerating chamber, the specification that can set reserve temperature in comprising a plurality of reserve temperature bands of cryogenic temperature band switch the chamber, detect aforementioned freezing indoor temperature with temperature sensor, detect aforementioned specification and switch the specification of indoor temperature and switch compressor and aforementioned throttle setting are controlled in the chamber with temperature sensor, to the throttle setting controlled to the cool-air feed of aforementioned specification switching chamber from cooler, according to the detected temperatures of aforementioned temperature sensor control device
Aforementioned control device
Switch the occasion that the chamber is set to freezing specification in aforementioned specification; Make the entry into service when aforementioned refrigerating chamber detects the temperature of starting shooting more than the design temperature with temperature sensor and specification switching chamber with the either party in the temperature sensor of aforementioned compressor; When all detecting the temperature of shutting down below the design temperature, finish by these two sensors running; Aforementioned throttle setting is switched in aforementioned specification to be opened when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor; When detecting the temperature of shutting down below the design temperature, close
Switch the chamber in aforementioned specification and be set to the freezing specification occasion of specification in addition, make the entry into service when aforementioned refrigerating chamber detects the start design temperature with temperature sensor of aforementioned compressor, and when detecting the shutdown design temperature, finish to turn round, aforementioned throttle setting is switched in aforementioned specification open when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor, and when detecting the temperature of shutting down below the design temperature, close.
Technical scheme two of the present invention is aforementioned control device
Switch the occasion that the chamber is set to freezing specification in aforementioned specification; Make the entry into service when aforementioned refrigerating chamber all detects the temperature of starting shooting more than the design temperature with temperature sensor and specification switching chamber with temperature sensor of aforementioned compressor; And when all detecting the temperature of shutting down below the design temperature, finish by these two temperature sensors to turn round; Aforementioned throttle setting is switched in aforementioned specification to be opened when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor; And when detecting the temperature of shutting down below the design temperature, close
Switch the chamber in aforementioned specification and be set to the freezing specification occasion of specification in addition, make the entry into service when aforementioned refrigerating chamber detects the start design temperature with temperature sensor of aforementioned compressor, and when detecting the shutdown design temperature, finish to turn round, aforementioned throttle setting is switched in aforementioned specification open when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor, and when detecting the temperature of shutting down below the design temperature, close.
By adopting above-mentioned structure, when specification switching chamber is freezing specification, compressor does not shut down when having only refrigerating chamber to detect the temperature of shutting down below the design temperature with temperature sensor, just shut down when the chamber all detects the temperature of shutting down below the design temperature with the temperature sensor both sides and only switch with temperature sensor and specification, switch the not enough phenomenon of chamber cooling so specification can not take place at refrigerating chamber.
Technical scheme three of the present invention is switched the abnormal conditions of chamber with temperature sensor for corresponding refrigerating chamber with temperature sensor and specification,
When aforementioned refrigerating chamber switch with temperature sensor and specification the chamber with temperature sensor in either party or both sides all take place when unusual,
Aforementioned control device
Switch the occasion that the chamber is set to freezing specification in aforementioned specification, make aforementioned compressor operation, the said baffle device is opened,
Be set to the freezing specification occasion of specification in addition and switch the chamber, make aforementioned compressor operation, aforementioned throttle setting cuts out in aforementioned specification.
By adopting above-mentioned structure, switch the chamber at refrigerating chamber with temperature sensor, specification and unusual occasion takes place with temperature sensor, when specification switching chamber is freezing specification, compressor operation, throttle setting can not thawed so refrigerating chamber and specification are switched indoor frozen food in opened condition.In addition, when specification when to switch the chamber be specification beyond the freezing specification, compressor operation, throttle setting is closed condition, so the frozen food in the refrigerating chamber can not thawed, the indoor food of specification switching simultaneously can not freeze yet.
It below is simple declaration to accompanying drawing.
Fig. 1 is the front view of one embodiment of the invention.
Fig. 2 is the vertical profile side view.
Fig. 3 is the vertical profile side view that specification is switched the chamber part.
Fig. 4 is the circuit structural map.
Fig. 5 is the detected temperatures variation diagram of two temperature sensors using of explanation other embodiments of the invention.
Below in conjunction with Fig. 1～Fig. 4 one embodiment of the present of invention are described.
In Fig. 1 and Fig. 2 of expression refrigerator integral body, in refrigerator main body 1, as storeroom, from top to bottom, be followed successively by refrigerating chamber 2, about side by side ice-making compartment 3 and specification switch chamber 4, refrigerating chamber 5, vegetable compartment 6, each chamber 2～6 opens and closes with door 7～11 respectively.In above-mentioned each chamber 2～6, ice-making compartment 3 and refrigerating chamber 5 are same temperature band, so chamber 3,5 both connections.
The cooling construction of above-mentioned each chamber 2～6 below is described, rear portion at ice-making compartment 3 that is interconnected and refrigerating chamber 5, with the cooler chambers 13 that isolate in lid 12 formation and the refrigerating chamber 5, the air that is cooled off by coolers in this cooler chamber 13 14 at first is sent to the air-supply paths 16 that form in lid 12 inside by fan assembly 15.And a part of sending into the cold air in the air-supply path 16 is supplied with to ice-making compartment 3 and refrigerating chamber 5 from blowing mouth 17a, the 17b that forms at lid 12 front faces, remaining cold air then switches the throttle setting shown in Figure 3 18 at 4 backs, chamber and switches chamber 4 supplies to refrigerating chamber 2 and specification from air-supply path 16 through being located at specification, and the cold air of supplying with in the refrigerating chamber 2 is supplied with to vegetable compartment 6 then.
The supply system icehouse 3, refrigerating chamber 5 and specification are switched the cold air of chamber 4, the cold air of supplying with vegetable compartment 6 from refrigerating chamber 2 returns in the cooler chamber 13 then, in these device 14 coolings that are cooled once more, so circulate in refrigerator.In addition, be provided with control and switch the baffle plate 18a of chamber 4 cool-air feeds to the baffle plate (not shown) of refrigerating chamber 2 cool-air feeds and control to specification in throttle setting 18, they are subjected to open and close controlling by motor 18b.
In above-mentioned storeroom, specification is switched chamber 4 and constitute the cooling chamber that reserve temperature (chilling temperature) can change, the temperature band of all sizes such as the variable more refrigerating chamber of its reserve temperature, partial freezing chamber, cooling chamber, refrigerating chamber and vegetable compartment on a large scale.Switch to required specification for this specification is switched chamber 4, be provided with variable resistance 20 on the guidance panel 19 in refrigerating chamber 2, switch the switching device shifter of temperature (specification) usefulness of chamber 4 as setting specification.
As shown in Figure 4, resistance 20a and another resistance 21 of above-mentioned variable resistance 20 are connected in series, and be connected between cathode power supply+Vcc and the ground wire, be transfused to microcomputer 22 with the position correspondent voltage of the sub-20b of slip of variable resistance 20 as control device.Microcomputer 22 detects in specification and switches the specification that chamber 4 is set according to the input voltage from variable resistance 20.The reserve temperature band of each specification for example can be: the refrigerating chamber specification is-23 ℃～-12 ℃, and partial freezing's chamber specification is-4.5 ℃～-1 ℃, the cooling chamber specification be-1 ℃～below+3 ℃, refrigerating chamber specification and vegetable compartment specification are+3 ℃～+ 5 ℃.
The following temperature control structure of each chamber 2～6 of explanation, at first, the temperature of refrigerating chamber 5 is controlled in the running of the compressor 23 by freeze cycle, and controls the temperature of refrigerating chamber 2 and specification switching chamber 4 by the baffle plate of open and close controlling throttle setting 18 respectively.Below the explanation specification directly relevant with the present invention switched the temperature control structure of chamber 4 and refrigerating chamber 5.
That is, on refrigerator main body 1, be provided with the detection specification and switch specification switching chamber temperature sensor 24 and the refrigerating chamber temperature sensor 25 that reaches temperature in the refrigerating chamber 5 in the chamber 4.These temperature sensors 24,25 for example are made of negative-characteristic thermistor, as shown in Figure 4, are connected in series with resistance 26,27 between cathode power supply+Vcc and ground wire, and its branch pressure voltage is imported aforementioned microcomputer 22 as the detected temperatures value.
On the other hand, the motor 23a of compressor 23 and being used to makes the specification of throttle setting 18 switch motor 18b that chamber 4 one side shield 18a make on-off action and connect as the relay switch 29 and 30 of drive unit and be connected with AC power 28.Microcomputer 22 carries out power on/off control according to the detected temperatures of said temperature sensor 24,25 and predefined program to relay coil 29a, the 30a of relay switch 29,30.Also have, fan assembly 15 is not shown in Fig. 4, as previously mentioned, and its running and stop with the running of compressor 23 and stop to carry out synchronously.
In this structure, in case relay coil 29a is energized, its relay switch 29 is just connected, and carries out the running of compressor 23.In case and relay coil 30a is energized, its relay switch 30 is just connected, so the motor 18b of throttle setting 18 is energized, makes the baffle plate 18a that specification is switched chamber 4 make on-off action.
In this occasion, the not shown cam that rotates owing to the effect of motor 18b just makes the baffle plate 18a of throttle setting 18 make on-off action, and the detected switch 31 of its open and-shut mode detects.This sense switch 31 becomes connection from disconnection when baffle plate 18a opens, then become disconnection from connection when arriving fully open position, and the make-and-break signal of its sense switch 31 inputs to microcomputer 22.Microcomputer 22 switches the chamber to specification and compares with the detected temperatures of temperature sensor 24 and the chilling temperature of setting with variable resistance 20 settings with aforementioned specification, and the baffle plate 18a of throttle setting 18 carried out open and close controlling, so that switching chamber 4, specification keeps the temperature set.
The microcomputer 22 of present embodiment has the function that detects unusually to temperature sensor 24,25.Here, the unusual main of temperature sensor 24,25 is because the bleeder circuit that is made of temperature sensor 24,25 and resistance 26,27 breaks somewhere, or forming short circuit with cathode power supply+Vcc and ground wire causes.When this class takes place unusually, bleeder circuit forms high impedance status, or the current potential of output cathode power supply+Vcc or the current potential of ground wire, so when microcomputer 22 detects the above-mentioned state that causes because of broken string and short circuit according to the input from the bleeder circuit of temperature sensor 24,25 and resistance 26,27, just be judged as sensor abnormality (sensor abnormality judgment means).
And, door 7 fronts of this sensor abnormality by for example being located at refrigerating chamber 2, notify the user as the light emitting diode 32 of abnormality alarm device.This light emitting diode 32 is connected with transistor series between cathode power supply+Vcc and ground wire, and microcomputer 22 is connected transistor so that light emitting diode 32 is luminous when detecting sensor abnormality.
In addition, though it is not shown among the figure, but in refrigerating chamber 2, also be provided with the temperature sensor that detects its internal temperature, microcomputer 22 carries out open and close controlling to the not shown refrigerating chamber that throttle setting 18 has with baffle plate with the detected temperatures of temperature sensor according to this refrigerating chamber, makes refrigerating chamber 2 Keep cool temperature.
Effect when below the temperature control of specification switching chamber 4 and refrigerating chamber 5 is carried out in explanation in above-mentioned structure.
At first, microcomputer 22 has or not sensor abnormality with certain cycle detection, normally controls in the occasion that two temperature sensors 24,25 all work orderly, and is judging that sensor unusual occasion takes place carries out emergent control when unusual.Below divide different occasions to be illustrated.
(1) normal control
A) specification is when to switch chamber 4 be freezing specification
At this moment, microcomputer 22 switches in specification makes compressor 23 entrys into service when the chamber detects the start design temperature with temperature sensor 24 and refrigerating chamber with the either party in the temperature sensor 25, when two temperature sensors 24 and 25 all detect the shutdown design temperature compressor 23 is shut down.And the start design temperature of two temperature sensors 24,25 and the shutdown design temperature have nothing in common with each other, for example setting specification switching chamber uses the start design temperature of temperature sensor 24 to be-19 ℃, the shutdown design temperature is-21 ℃, the setting refrigerating chamber is-20 ℃ with the start design temperature of temperature sensor 25, and the shutdown design temperature is-24.5 ℃.
In case specification switches the either party in chamber 4 and the refrigerating chamber 5 such as the temperature in the refrigerating chamber 5 rises to more than the design temperature and refrigerating chamber detects this temperature with temperature sensor 25, microcomputer 22 begins the running of compressor 23 and fan assembly 15 immediately.So, the air that cools off with cooler 14 just passes through fan assembly 15 and direct the supply system icehouse 3 and refrigerating chamber 5, with two Room 3 and 5 coolings.In the operation process of this compressor 23, in case the temperature in the specification switching chamber 4 reach more than the start design temperature and specification switching chamber detects this temperature with temperature sensor 24, microcomputer 22 just makes the baffle plate 18a of throttle setting 18 make opening action.So, the cold air of supplying with in the air-supply path 16 by fan assembly 15 is just supplied with in specification is switched chamber 4 so that this chamber 4 is cooled off by throttle setting 18.
In addition, switch in chamber 4 and the refrigerating chamber 5 in specification, the temperature of switching chamber 4 when specification at first rises to the start design temperature when above, microcomputer 22 switches the chamber according to specification and begins the running of compressor 23 with the detected temperatures of temperature sensor 24, makes the baffle plate 18a of throttle setting 18 make opening action simultaneously.So, just directly supply with, also switch chamber 4 to specification simultaneously and supply with through throttle setting 18 to ice-making compartment 3 and refrigerating chamber 5 through fan assembly 15 with the air of cooler 14 coolings.In this occasion, though be under the state that is in start design temperature following temperature to refrigerating chamber 5 cool-air feeds, just, can not produce harmful effect to this frozen food to the further cooling of food of freezing preservation.
In case all reach below the shutdown design temperature owing to above-mentioned cool-air feed makes the temperature that specification is switched chamber 4 and refrigerating chamber 5 both sides, microcomputer 22 just makes compressor 23 and fan assembly 15 shut down.In case rise to more than the start design temperature owing to this running stops to make the temperature that specification is switched either party in chamber 4 and the refrigerating chamber 5, microcomputer 22 just makes compressor 23 and fan assembly 15 entrys into service once more, and switches chamber 4 and refrigerating chamber 5 both sides in specification and all reach the shutdown design temperature and compressor 23 and fan assembly 15 are shut down when following.At this moment, be cooled to prior to refrigerating chamber 5 below the shutdown design temperature,, stop to switch chamber 4 cool-air feeds to specification just microcomputer 22 makes the baffle plate 18a of throttle setting 18 make closing motion if specification is switched chamber 4.
As mentioned above, be to switch in specification to make compressor 23 entrys into service when the chamber detects the temperature of starting shooting more than the design temperature with the either party in the temperature sensor 25 with temperature sensor 24 and refrigerating chamber, so temperature, the temperature in the refrigerating chamber 5 that specification can be switched in the chamber 4 all remain on below the start design temperature.
And, be when two temperature sensors 24,25 all detect the temperature of shutdown below the design temperature, compressor 23 to be shut down, so can prevent to switch chamber 4 just problem generation of stall of compressor 23 when not being cooled to necessary cryogenic temperature as yet in specification.
B) specification is switched chamber 4 when be in addition specification of freezing specification
At this moment, the running of compressor 23 is controlled according to the detected temperatures of refrigerating chamber with temperature sensor 25.And specification switches the chamber and is set to and the corresponding temperature of setting with variable resistance 20 of specification with the start design temperature and the shutdown design temperature of temperature sensor 24, and the baffle plate 18a of throttle setting 18 switches the chamber according to specification and is subjected to open and close controlling with the start design temperature of temperature sensor 24 and the design temperature that shuts down.
That is, in case the temperature in the refrigerating chamber 5 rise to the above and refrigerating chamber of start design temperature when detecting this temperature with temperature sensor 25, microcomputer 22 just begins the running of compressor 23 and fan assembly 15.Like this, with above-mentioned identical, cold air is just supplied with to ice-making compartment 3 and refrigerating chamber 5.At this moment, detect the above temperature of start design temperature in case specification is switched the chamber with temperature sensor 24, microcomputer 22 just makes throttle setting 18 make opening action, makes cold air pass through throttle setting 18 and supply in specification is switched chamber 4.
In case this cool-air feed makes the temperature that specification is switched chamber 4 be cooled to shut down below the design temperature, microcomputer 22 just makes the baffle plate 18a of throttle setting 18 make closing motion, stops to switch chamber 4 cool-air feeds to specification.In case refrigerating chamber 5 is cooled to shut down below the design temperature, microcomputer 22 just makes compressor 23 and fan assembly 15 shut down.
And running by above-mentioned compressor 23 and fan assembly 15 and stall make ice-making compartment 3 and refrigerating chamber 5 keep cryogenic temperatures, and the switching of the baffle plate 18a by throttle setting 18 simultaneously makes specification switch chamber 4 to keep the specification temperature set.
(2) emergent control during sensor abnormality
In case microcomputer 22 is judged sensor abnormality, just makes light emitting diode 32 luminous, report that to the user specification switching chamber all takes place can not normally control unusually with either party in the temperature sensor 25 or both sides with temperature sensor 24 and refrigerating chamber.The user is taken place unusually according to luminous the learning of light emitting diode 32, just can ask to repair.Microcomputer 22 also carries out following emergent control when unusual except sending above-mentioned abnormality alarm.
Promptly, in case be judged as sensor abnormality, microcomputer 22 judges just whether specification switching chamber 4 is set to the refrigerating chamber specification, in the occasion that is set at the refrigerating chamber specification, detected temperatures regardless of temperature sensor 24,25, make compressor 23 and fan assembly 15 runnings, make the baffle plate 18a of throttle setting 18 make opening action simultaneously.Like this, cold air just switches chamber 4, refrigerating chamber 5 supplies to ice-making compartment 3, specification, makes these chambers 3～5 remain on cryogenic temperature.
On the other hand, switch chamber 4 when being set to specification beyond the refrigerating chamber specification in specification, microcomputer 22 makes the baffle plate 18a of throttle setting 18 be in closed condition no matter the detected temperatures of temperature sensor 24,25 how, makes compressor 23 and fan assembly 15 entrys into service simultaneously.Like this, both made ice-making compartment 3, refrigerating chamber 5 keep cryogenic temperature, prevented that specification switching chamber 4 from becoming cryogenic temperature and causing food freezing simultaneously again.
Above-mentioned emergency operation is the running in short period before the repairman finishes temperature sensor replacing etc., can prevent the thaw generation of this significant problem of frozen food by this running.Adopt above-mentioned emergency operation also because when specification is switched chamber 4 for the specification beyond the freezing specification, can rise to normal temperature in the short period before the repairman completes repairs hardly and cause food spoilage, and concerning the user, the more important thing is to prevent cool-air feed in specification is switched chamber 4 and cause food freezing.
In the above-described embodiments, when being set to the refrigerating chamber specification, when being the temperature more than the either party in two temperature sensors 24,25 detects the start design temperature, make compressor 23 entrys into service in specification switching chamber 4.Therefore, following item can take place in prediction.
At first, specification switching chamber 4 and refrigerating chamber 5 have following character.That is, the back of refrigerating chamber 5 forms cooling chamber 13, is subjected to the cooling effect of cooler 14 easily, and the cold air of device 14 coolings that are cooled simultaneously is at once directly to its supply, so be cooled easily.On the other hand, the internal capacity of refrigerating chamber 5 is big, and the area of the left and right sides wall that contacts with extraneous air is big, so heat leakage is many, temperature rises easily.
And specification to switch chamber 4 be to accept cold air cooler 13 in by the air-supply path 16 that forms lid 12 in and throttle setting 18, so because of therebetween passage resistance is difficult to obtain than air quantity greatly, and the temperature that blows out of cold air also is higher than refrigerating chamber 5.Thereby specification is switched chamber 4 and is difficult for cooling.On the other hand, specification is switched chamber 4 and is joined at both sides and left side and refrigerating chamber 2, refrigerating chamber 5 and ice-making compartment 3 up and down, and what contact with extraneous air only is right side wall, so relative its internal capacity, the wall area that contacts with extraneous air is less, consequently, heat leakage is less, and temperature is difficult for rising.
Specification is switched chamber 4 and refrigerating chamber 5 has above-mentioned character.Therefore, switch the occasion that chamber 4 is set to freezing specification in specification, be at two temperature sensors 24 as mentioned above, either party in 25 begins the running of compressor 23 when detecting the temperature of starting shooting more than the design temperature, then because after specification is switched chamber 4 and refrigerating chamber 5 and is cooled to below the shutdown design temperature, be that the more refrigerating chamber of heat leakage 5 one sides at first rise to more than the start design temperature, so compressor 23 normally turns round according to the temperature in the refrigerating chamber 5, and shutting down the temperature that makes refrigerating chamber 5 because of compressor 23 from the process that the following state of shutdown design temperature rises, because switching chamber 4, specification rises to the above temperature of start design temperature, make compressor 23 runnings again, so form the frequent running of compressor 23.
For prevent the generation of this class state of affairs, just other embodiment of the present invention switch in specification to begin the running of compressor 23 when the chamber all detects the temperature of starting shooting more than the design temperature with temperature sensor 25 both sides with temperature sensor 24 and refrigerating chamber.
So, as shown in Figure 5, even the more refrigerating chamber 5 of heat leakage rises to the above temperature of start design temperature (20 ℃) (t1 constantly among Fig. 5) in advance, because switching chamber 4, specification do not reach the above temperature of start design temperature (19 ℃) as yet, so compressor 23 does not turn round.Then, in case switching chamber 4, specification reaches the above temperature of start design temperature (t2 of Fig. 5 constantly), compressor 23 entry into service just now.At this moment, start shooting more than the design temperature, but still maintain the following temperature of freezing necessary bottom line, the problem of a class so the food in the refrigerating chamber 5 can not thaw though the temperature in the refrigerating chamber 5 reaches.In case and specification switching chamber all is cooled to shutdown design temperature following (t3 constantly among Fig. 5) with temperature sensor 24 and refrigerating chamber with temperature sensor 25, compressor 23 just stops.
As mentioned above, present embodiment is just to begin the running of compressor 23 when two temperature sensors 24,25 all detect the temperature of starting shooting more than the design temperature, so can prevent compressor 23 over-runnings.And be when two temperature sensors 24,25 all detect the temperature of shutting down below the design temperature, compressor 23 just shuts down, and does not switch chamber 4 or the refrigerating chamber 5 uncolled problems that just shut down to the following compressor 23 of shutdown design temperature so specification can not take place.
As mentioned above, the present invention has following effect.
The invention of technical scheme one is switched the occasion that the chamber is set to freezing specification in specification, is to use at refrigerating chamber Temperature sensor and specification are switched the chamber and are detected more than the start design temperature with the either party in the temperature sensor Temperature the time begin the running of compressor, and be these two sensors all detect the shutdown design temperature below Temperature the time just finish running, so can control the temperature that refrigerating chamber and specification are switched the chamber, prevent its temperature Degree is higher than the start design temperature.
The invention of technical scheme two is switched the occasion that the chamber is set to freezing specification in specification, is to use at refrigerating chamber When temperature sensor and specification switching chamber all detect the temperature of starting shooting more than the design temperature with temperature sensor Just begin the running of compressor, so can prevent that the compressor operation rate is too high.
The invention of technical scheme three can prevent when the temperature sensor abnormal that frozen food from thawing or Ying Leng not The food freezing that freezes.

Claims (3)

1. refrigerator has:
The refrigerating chamber that refrigerating chamber, the specification that can set reserve temperature in comprising a plurality of reserve temperature bands of cryogenic temperature band switch the chamber, detect described freezing indoor temperature with temperature sensor, detect described specification and switch the specification of indoor temperature and switch compressor and described throttle setting are controlled in the chamber with temperature sensor, to the throttle setting controlled to the cool-air feed of described specification switching chamber from cooler, according to the detected temperatures of described temperature sensor control device
It is characterized in that described control device
Switch the occasion that the chamber is set to freezing specification in described specification; Make the entry into service when described refrigerating chamber detects the temperature of starting shooting more than the design temperature with temperature sensor and specification switching chamber with the either party in the temperature sensor of described compressor; When all detecting the temperature of shutting down below the design temperature, finish by these two temperature sensors running; Described throttle setting is switched in described specification to be opened when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor; When detecting the temperature of shutting down below the design temperature, close
Switch the chamber in described specification and be set to the freezing specification occasion of specification in addition, make the entry into service when aforementioned refrigerating chamber detects the start design temperature with temperature sensor of described compressor, and when detecting the shutdown design temperature, finish to turn round, described throttle setting is switched in described specification open when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor, and when detecting the temperature of shutting down below the design temperature, close.
2. refrigerator has:
The refrigerating chamber that refrigerating chamber, the specification that can set reserve temperature in comprising a plurality of reserve temperature bands of cryogenic temperature band switch the chamber, detect described freezing indoor temperature with temperature sensor, detect described specification and switch the specification of indoor temperature and switch compressor and described throttle setting are controlled in the chamber with temperature sensor, to the throttle setting controlled to the cool-air feed of described specification switching chamber from cooler, according to the detected temperatures of described temperature sensor control device
It is characterized in that described control device
Switch the occasion that the chamber is set to freezing specification in described specification; Make the entry into service when described refrigerating chamber all detects the temperature of starting shooting more than the design temperature with temperature sensor and specification switching chamber with temperature sensor of described compressor; And when all detecting the temperature of shutting down below the design temperature, finish by these two temperature sensors to turn round; Described throttle setting is switched in described specification to be opened when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor; And when detecting the temperature of shutting down below the design temperature, close
Switch the chamber in described specification and be set to the freezing specification occasion of specification in addition, make the entry into service when described refrigerating chamber detects the start design temperature with temperature sensor of described compressor, and when detecting the shutdown design temperature, finish to turn round, described throttle setting is switched in described specification open when the chamber detects the temperature of starting shooting more than the design temperature with temperature sensor, and when detecting the temperature of shutting down below the design temperature, close.
3. refrigerator according to claim 1 and 2 is characterized in that, when described refrigerating chamber switch with temperature sensor and specification the chamber with temperature sensor in either party or both sides all take place when unusual,
Described control device
Switch the occasion that the chamber is set to freezing specification in described specification, make described compressor operation, described throttle setting is opened,
Switch the chamber in described specification and be set to the freezing specification occasion of specification in addition, make described compressor operation, described throttle setting cuts out.
CN97126348A 1996-12-27 1997-12-29 Refrigerator Expired - Fee Related CN1126927C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP350366/96 1996-12-27
JP8350366A JPH10197129A (en) 1996-12-27 1996-12-27 Refrigerator
JP350366/1996 1996-12-27

Publications (2)

Publication Number Publication Date
CN1186214A CN1186214A (en) 1998-07-01
CN1126927C true CN1126927C (en) 2003-11-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN97126348A Expired - Fee Related CN1126927C (en) 1996-12-27 1997-12-29 Refrigerator

Country Status (4)

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JP (1) JPH10197129A (en)
KR (1) KR100261718B1 (en)
CN (1) CN1126927C (en)
TW (1) TW356511B (en)

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KR100541429B1 (en) * 1999-08-05 2006-01-10 삼성전자주식회사 Kimchi Refrigerator and Control Method thereof
JP3930206B2 (en) * 1999-08-06 2007-06-13 三菱電機株式会社 Refrigerated refrigerator, cold air circulation method of refrigerator
KR100789807B1 (en) * 2001-09-28 2007-12-28 엘지전자 주식회사 Refrigerator for storing kimchi
TWI295724B (en) * 2004-06-25 2008-04-11 Toshiba Kk Refrigerator
JP4781395B2 (en) * 2008-05-28 2011-09-28 三菱電機株式会社 refrigerator
CN106016964B (en) * 2016-07-15 2019-02-15 长虹美菱股份有限公司 A kind of control system, control method and the refrigerator of more air door wind-cooling refrigerators
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CN110296560B (en) * 2019-06-12 2021-09-03 合肥美的电冰箱有限公司 Method and device for controlling starting and stopping temperature points of refrigerator compressor and refrigerator

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Publication number Priority date Publication date Assignee Title
CN111765715A (en) * 2020-07-06 2020-10-13 珠海格力电器股份有限公司 Refrigerator compartment temperature control method and circuit and refrigerator

Also Published As

Publication number Publication date
CN1186214A (en) 1998-07-01
TW356511B (en) 1999-04-21
JPH10197129A (en) 1998-07-31
KR19980064840A (en) 1998-10-07
KR100261718B1 (en) 2000-07-15

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