CN1332165C - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- CN1332165C CN1332165C CNB991086910A CN99108691A CN1332165C CN 1332165 C CN1332165 C CN 1332165C CN B991086910 A CNB991086910 A CN B991086910A CN 99108691 A CN99108691 A CN 99108691A CN 1332165 C CN1332165 C CN 1332165C
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- valve
- refrigeration
- evaporimeter
- freezing
- temperature
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
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- 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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A refrigerator capable of sensing a valve leakage and removing refuse adhered to a valve mechanism. The refrigerator 10 switches via a three-way valve 68 in supplying a refrigerant to an R evaporator 34 and an F evaporator 24. In the case of sensing a valve leakage of the three-way valve 68, the three-way valve 68 is forcibly operated to remove refuse thereby releasing the leakage.
Description
Technical field
The present invention relates to the refrigerator of two evaporimeters.
Background technology
About nearest refrigerator, for effective refrigerated compartment of difference and refrigerating chamber, existing people has proposed to be provided with refrigeration evaporimeter and freezing refrigerator scheme with evaporimeter.
In order to use the cold-producing medium of sending from a compressor efficiently to cool off this two evaporimeters, in refrigerant flow path triple valve is set midway, the switching by this triple valve decides sends into refrigeration with evaporimeter or the freezing evaporimeter of using with cold-producing medium.
But in refrigerant flow path, sneak into rubbish sometimes when manufacturing waits, this rubbish is blocked in the triple valve, and triple valve so-called valve will take place leak with regard to cisco unity malfunction.
So-called valve leaks, be meant following phenomenon: though triple valve has switched to the freezing evaporimeter of using, cold-producing medium but is not only to flow to freezing yet sewing with vaporizer side to flow to the refrigeration vaporizer side, perhaps opposite, though switched to the refrigeration evaporimeter, cold-producing medium but is not only to flow to refrigeration to use vaporizer side, flows to the freezing evaporimeter of using and sew yet.And existing refrigerator can not detect such valve leakage phenomenon.
In addition, existing refrigerator is not provided with when such valve leakage phenomenon takes place, and removes the structure attached to the rubbish on the triple valve.
Summary of the invention
Problem in view of above-mentioned prior art exists the objective of the invention is to, and provides a kind of and can detect the refrigerator that valve leaks.
The refrigerator of technical scheme 1 of the present invention, with compressor, condenser, the refrigeration throttle mechanism, the refrigeration evaporimeter corresponding with refrigerating chamber, freezing with throttle mechanism and corresponding with refrigerating chamber freezingly be connected and constitute refrigerant flow path with evaporimeter, switch refrigerant flow path by valve system, can realize making cold-producing medium flow into the refrigeration operational mode of refrigeration with throttle mechanism with vaporizer side through refrigeration, and make cold-producing medium only flow into freezing freezing operational mode with evaporimeter with throttle mechanism through freezing, and be provided with and detect the 1st evaporator temperature checkout gear of described refrigeration with the temperature of evaporimeter, detect described freezing the 2nd evaporator temperature checkout gear and the valve of the temperature of evaporimeter used and leak judgment means, this valve leaks judgment means according to the 1st, the detected temperature of the 2nd evaporator temperature checkout gear is judged to freezing valve leakage with evaporimeter with the valve leakage or the cold-producing medium of evaporimeter to refrigeration cold-producing medium in the valve system.
The refrigerator of technical solution of the present invention 2 is on the basis of technical scheme 1, also be provided with and detect the refrigeration evaporator temperature checkout gear of refrigeration with evaporator temperature, in freezing operational mode, in case the temperature that refrigeration is measured with the evaporator temperature checkout gear is below design temperature, then valve leaks judgment means and promptly is judged as valve system and cold-producing medium is arranged to the valve leakage of refrigeration with evaporimeter.
The refrigerator of technical solution of the present invention 3 is on the basis of technical scheme 1, also be provided with and detect the refrigeration evaporator temperature checkout gear of refrigeration with evaporator temperature, in freezing operational mode, in case the temperature that refrigeration is measured with the evaporator temperature checkout gear is below design temperature, and when the operating frequency of compressor was higher than setpoint frequency, valve leakage judgment means promptly is judged as valve system had cold-producing medium to leak to the valve of refrigeration with evaporimeter.
The refrigerator of technical solution of the present invention 4 is on the basis of technical scheme 1, also be provided with and detect the refrigeration evaporator temperature checkout gear of refrigeration with evaporator temperature, in freezing operational mode, in case in the design temperature scope, valve leaks judgment means and promptly is judged as valve system and cold-producing medium is arranged to refrigerating the valve leakage of using evaporimeter with the difference of the temperature of evaporator temperature checkout gear when the refrigeration operational mode for the temperature that refrigeration is measured with the evaporator temperature checkout gear and this refrigeration.
The refrigerator of technical solution of the present invention 5 is on the basis of technical scheme 1, also be provided with and detect the freezing freezing evaporator temperature checkout gear of using with evaporator temperature, in freezing operational mode, in case the freezing temperature of measuring with the evaporator temperature checkout gear with should be freezing with difference of the temperature of evaporator temperature checkout gear when the refrigeration operational mode in the design temperature scope, valve leaks judgment means and promptly is judged as valve system and cold-producing medium is arranged to the valve leakage of refrigeration with evaporimeter.
The refrigerator of technical solution of the present invention 6 is on the basis of technical scheme 1, also be provided with and detect the freezing freezing evaporator temperature checkout gear of using with evaporator temperature, in freezing operational mode, in case the freezing temperature of measuring with the evaporator temperature checkout gear with should be freezing with difference of the temperature of evaporator temperature checkout gear when the refrigeration operational mode in the design temperature scope, valve leaks judgment means and promptly is judged as valve system and cold-producing medium is arranged to freezing valve leakage with evaporimeter.
The refrigerator of technical solution of the present invention 7 is on the basis of technical scheme 1, also is provided with when valve leaks judgment means and is judged as valve when leaking, and forces valve system to move to remove the rubbish removal device of rubbish in the valve system.
The refrigerator of technical solution of the present invention 8 is on the basis of technical scheme 7, and when valve leakage judgment means was judged as the valve leakage, rubbish removal device limit was risen the operating frequency of compressor, and the limit forces the valve system action.
The refrigerator of technical solution of the present invention 9 is on the basis of technical scheme 7, and when valve leakage judgment means was judged as the valve leakage, rubbish removal device limit was risen the operating frequency of compressor, and the limit stops valve system in the refrigerant flow path handoff procedure.
The refrigerator of technical solution of the present invention 10 is on the basis of technical scheme 7, and when valve leakage judgment means was judged as the valve leakage, the rubbish removal device forced the action of valve system than shortening conventional actuation time.
The refrigerator of technical solution of the present invention 11 is on the basis of technical scheme 10, also be provided with the defrosting control device, remove after the rubbish valve when the rubbish removal device and leak judgment means and be judged as valve once more when leaking, this defrosting control device carries out valve with evaporimeter and refrigeration with evaporimeter and leaks with defrosting and turn round freezing.
The refrigerator of technical solution of the present invention 12 is on the basis of technical scheme 11, the defrosting control device is controlled to be freezing defrosting running with evaporimeter under the conventional state shorter at interval with the defrosting running of evaporimeter than refrigeration at interval, after carrying out valve leakage usefulness defrosting running, valve leaks judgment means when judging valve for 3 times and leaking, and makes freezingly to be decided to be the freezing defrost interval of using evaporimeter with evaporimeter and refrigeration with the defrosting running interval of evaporimeter.
If the refrigerator of technical scheme 1, valve leak the valve leakage that judgment means can be judged valve system.
If the refrigerator of technical scheme 2, in freezing operational mode, in case the temperature that refrigeration is measured with the evaporator temperature checkout gear is below the design temperature, valve leaks judgment means judges that promptly valve system cold-producing medium has taken place leaked to the valve of refrigeration with evaporimeter.
If the refrigerator of technical scheme 3, in freezing operational mode, if hiding the temperature of measuring with the evaporator temperature checkout gear is below the design temperature, and the operating frequency of compressor is than setpoint frequency height, and valve leaks judgment means judges that promptly valve system cold-producing medium has taken place leaked to the valve of refrigeration with evaporimeter.
If the refrigerator of technical scheme 4, in freezing operational mode, if the difference of the temperature of the temperature that refrigeration is measured with the evaporator temperature checkout gear during with the refrigeration operational mode is in the design temperature scope, valve leaks judgment means judges that promptly valve system cold-producing medium has taken place to the valve leakage of refrigeration with evaporimeter.
If the refrigerator of technical scheme 5, in freezing operational mode, if the difference of the temperature of the freezing temperature of measuring with the evaporator temperature checkout gear during with the refrigeration operational mode is in the design temperature scope, valve leaks judgment means judges that promptly valve system cold-producing medium has taken place to the valve leakage of refrigeration with evaporimeter.
If the refrigerator of technical scheme 6, in the refrigeration operational mode, if the difference of the temperature of the freezing temperature of measuring with the evaporator temperature checkout gear during with the refrigeration operational mode is in the design temperature scope, valve leaks judgment means judges that promptly valve system cold-producing medium has taken place to freezing valve leakage with evaporimeter.
If the refrigerator of technical scheme 7 when valve leakage judgment means is judged as the valve leakage, because rubbish is blocked in the valve system, is removed this rubbish so the rubbish removal device forces valve system to move.
If the refrigerator of technical scheme 8, when valve leakage judgment means was judged as the valve leakage, rubbish removal device limit was risen the operating frequency of compressor, and the limit forces the valve system action to blow away rubbish.
If the refrigerator of technical scheme 9, when valve leakage judgment means was judged as the valve leakage, rubbish removal device limit was risen the operating frequency of compressor, and the limit makes the Halfway Stopping that valve system switches in refrigerant flow path remove rubbish.
If the refrigerator of technical scheme 10, when valve leakage judgment means was judged as the valve leakage, the rubbish removal device forced valve system and removes rubbish than shortening the ground action conventional actuation time.
If the refrigerator of technical scheme 11, valve leaks judgment means and judges once more when valve leaks after the rubbish removal device forces valve system action, for preventing freezingly to carry out valve with evaporimeter and refrigeration with evaporimeter frosting and leak with defrosting and turn round.
If the refrigerator of technical scheme 12, when valve after the running that defrosts leaks 3 judgement valves leakages of judgment means, make freezing with evaporimeter and refrigeration with the freezing defrost interval of being spaced apart of the defrosting of evaporimeter running with evaporimeter, carry out the defrosting shorter and turn round than tradition.
Brief description
Fig. 1 is the key diagram of the embodiment of refrigerator of the present invention.
Fig. 2 is the key diagram of freeze cycle.
Fig. 3 is the longitudinal section of triple valve.
Fig. 4 is the 1st, the key diagram of the 4th kind of valve leakage detection method.
Fig. 5 is the key diagram of the 2nd kind of valve leakage detection method.
Fig. 6 is the key diagram of the 3rd kind of valve leakage detection method.
Fig. 7 is the key diagram of the 5th kind of valve leakage detection method.
Fig. 8 is the flow chart that the state of a control of measuring the running that defrosts when valve leaks is shown.
Fig. 9 is the key diagram of the variation of freeze cycle.
The specific embodiment
The refrigerator 10 of one embodiment of the invention below is described with reference to the accompanying drawings.
Fig. 1 is the simple longitudinal section of refrigerator 10, the key diagram of double as electrical system.In addition, Fig. 2 is the freeze cycle key diagram of refrigerator 10.
At first describe according to Fig. 1.
On the casing 12 of refrigerator 10, be provided with refrigerating chamber 14, vegetable compartment 16 and refrigerating chamber 18 from the upper strata.In this refrigerating chamber, be provided with not shown ice maker.
Be provided with the Machine Room 22 of configuration compressor 20 in the bottom, the back side of refrigerating chamber 18.Dispose refrigerating chamber in addition at the rear of refrigerating chamber 18 with evaporimeter (hereinafter referred to as the F evaporimeter) 24, above F evaporimeter 24, be provided with refrigerating chamber that the cold air that F evaporimeter 24 is produced sends into refrigerating chamber 18 with fan (to call the F fan in the following text) 26.Below F evaporimeter 24, be provided with the Defrost heater (hereinafter referred to as the F Defrost heater) 28 that F evaporimeter 24 is defrosted.Near the top of F evaporimeter 24, be provided with the F evaporator sensor 30 that the temperature that detects F evaporimeter 24 is used.
In refrigerating chamber 18, be provided with and measure refrigerating chamber that indoor temperature uses with temperature sensor (to call the F sensor in the following text) 32.
Be provided with refrigerating chamber at the back side of vegetable compartment 16 with evaporimeter (to call the R evaporimeter in the following text) 34, above this R evaporimeter 34, be provided with refrigerating chamber, also be provided with the R evaporator sensor 38 that detects R evaporimeter 34 temperature with fan (to call the R fan in the following text) 36.Below R evaporimeter 34, be provided with the Defrost heater (to call the R Defrost heater in the following text) 40 that R evaporimeter 34 is carried out defrosting.
Be provided with in refrigerating chamber 14 inside and detect refrigerating chamber that indoor temperature uses with temperature sensor (to call the R sensor in the following text) 42.
In addition, these R fans 26, F Defrost heater 28, F evaporator sensor 30, F sensor 32, R fan 36, R evaporator sensor 38, R Defrost heater 40 and R sensor 42 are connected with the control device 44 that microcomputer constitutes.This control device 44 is made of a plate base, and is located at the upper rear portion of casing 12.In addition, the motor of compressor 20 also is connected with control device 44.
Then flowing of cold air is described according to Fig. 1.
Cold air by 24 coolings of F evaporimeter blows circulation in refrigerating chamber 18 by F fan 26.In addition, be blown into vegetable compartment 16 by R evaporimeter 34 cooled cold air by R fan 36 and refrigerating chamber 14 circulates.
The following structure that these freeze cycle are described according to Fig. 2.
Connect condenser 46 on the compressor 20, connecting triple valve 68 on the condenser 46.A refrigerant flow path telling one of two branches from triple valve 68 is connected with capillary (to call the R capillary in the following text) 50 with refrigerating chamber, is connected with R evaporimeter 34 again.In addition, another refrigerant flow path of telling from triple valve 68 is connected with F evaporimeter 24 with capillary (to call the F capillary in the following text) 52 through refrigerating chamber.And, return compressor 20 after the refrigerant flow path of F evaporimeter 24 and R evaporimeter 34 merges into one.
Followingly triple valve 68 is described according to Fig. 3.
Fig. 3 illustrates the section of triple valve 68, constitutes so-called solenoid structure by coil 102, magnet 104 and plunger 106 etc.Be provided with pin 108 in plunger 106 bottoms, coil 102 is by excitation, and pin 108 just drives downwards, orders about valve body 110 antagonistic springs 112 and moves downwards.At this state, cold-producing medium flows into R evaporimeter 34 from condenser 46.In addition, when plunger 106 resetted, valve body 110 returned to the top position, and cold-producing medium flows into F evaporimeter 24 from condenser 46.Again, in the drawings, symbol 116 is the freezing valve seat of using for refrigeration valve seat, symbol 118.
A valve leakage detection method now is described.
To the refrigerator 10 of said structure, the detection method when the valve leakage takes place triple valve 68 is described.
Specifically be, triple valve 68 is owing to its structure, and the small rubbish in the freeze cycle is clipped between valve body 110 and valve seat 116 and 118 sometimes, leaks so some valves can take place.5 kinds of detection methods when therefore, below this valve leakage takes place in explanation.
1. the 1st kind of valve leakage detection method.
According to Fig. 4 the 1st kind of valve leakage detection method is described.
(just often)
(unusual time)
But in freezing operational mode, in case cause the cold-producing medium R evaporimeter 34 that begins to bleed because of valve leaks, then because of this cold-producing medium that spills, R evaporimeter 34 also is cooled, and the detected temperatures of R evaporator sensor 38 descends, and can not rise to temperature of refrigerating chamber.
Therefore, as shown in Figure 4, setting value is set at the temperature lower slightly than temperature of refrigerating chamber, this as threshold value, is judged when R evaporator sensor 38 is no more than this setting value the valve leakage has taken place.
(variation)
In addition in this is judged, take place sometimes to be judged as the misoperation of valve leakage immediately when before freezing operational mode closes to an end, when the temperature of F evaporator sensor 38 does not reach described setting value as yet.
Therefore, in order to prevent this misoperation, also can judge like this: the temperature of the R evaporator sensor 38 before the 2nd time freezing operational mode closes to an end is for below the setting value, and the temperature of the R evaporator sensor 38 before the 3rd time freezing operational mode closes to an end judges that the valve leakage has taken place triple valve 68 when setting value is following.
This number of times is not limited to 3 times, also can be 2 times, 4 times.
2. the 2nd kind of valve leakage detection method.
According to Fig. 5 the 2nd kind of valve leakage detection method is described.
(just often)
(unusual time)
But in the refrigeration operational mode, in case cold-producing medium begins to leak to F evaporimeter 24 sides, then the temperature of F evaporimeter 24 descends, and the detected temperatures of F evaporator sensor 30 descends, and freezing operational mode diminishes with the temperature difference of refrigeration operational mode.Therefore, when this temperature difference becomes the design temperature difference when following, be judged as cold-producing medium and leak into F evaporimeter 24.
(variation)
In addition, this valve leak detection also can be the same with the 1st detection method, just is judged as valve and leaks when above-mentioned phenomenon takes place 3 times.
3. the 3rd kind of valve leakage detection method
Followingly the 3rd kind of valve leakage detection method is described according to Fig. 6.
(just often)
Under normal condition that valve leaks did not take place triple valve 68, R evaporator sensor 38 rose to temperature of refrigerating chamber (0 ℃-3 ℃) during freezing operational mode.That is, because cold-producing medium does not flow into R evaporimeter 34 fully under the freezing operational mode, thus be not cooled, identical with the indoor temperature of refrigerating chamber 14.
(unusual time)
But in freezing operational mode, the R evaporimeter 34 in case cold air begins to bleed then descends owing to this cold air causes the temperature of R evaporimeter 34, so the temperature of R evaporator sensor 38 descends, can not rise to the temperature of refrigerating chamber 14.Like this, when being decided to be setting value than the low slightly temperature of this temperature of refrigerating chamber, the temperature of R evaporator sensor 38 is below setting value.
In addition, about the operating frequency of compressor 20,, operating frequency is risen because of having taken place to cause scarce capacity to the valve leakage of R evaporimeter 34.Therefore, when the detected temperatures of R evaporator sensor 38 below setting value, and the operating frequency of compressor 20 is when higher than setpoint frequency, is judged as the cold air R evaporimeter 34 that bled.So just can judge that more reliably valve leaks than the 1st kind of valve leakage detection method.
(variation)
In addition, the same for this valve leak detection with the 1st kind of valve leakage detection method, also can only when taking place for continuous 3 times, just be judged as valve and leak.
4. the 4th kind of valve leakage detection method.
According to Fig. 4 the 4th kind of valve leakage detection method is described.
(just often)
(unusual time)
In freezing operational mode, the R evaporimeter 34 in case cold air begins to bleed, the temperature of R evaporimeter 34 promptly descends, so the detected temperatures of R evaporator sensor 38 descends, can not rise to temperature of refrigerating chamber.Therefore, the detected temperatures of the R evaporator sensor 38 of refrigeration operational mode and the temperature difference of the detected temperatures that current state is freezing operational mode diminish.Therefore, when this temperature difference becomes the design temperature difference when following, judge the leakage of cold-producing medium to R evaporimeter 34 to have taken place in freezing operational mode.
(variation)
In addition, the same with above-mentioned detection method in this valve leakage detection method, also can only when recurring 3 times, just judge the valve leakage has taken place.
5. the 5th kind of valve leakage detection method
According to Fig. 7 the 5th kind of valve leakage detection method is described.
(just often)
Under normal condition that valve leaks did not take place triple valve 68, the detected temperatures of F evaporator sensor 30 dropped to-30 ℃ approximately during freezing operational mode.That is, because cold-producing medium does not flow into R evaporimeter 34 fully, cold-producing medium only flows into F evaporimeter 24, so temperature descends.
(unusual time)
In case the cold-producing medium R evaporimeter 34 that begins to bleed in the freezing operational mode, then F evaporimeter 24 is not cooled off fully, the detected temperatures of F evaporator sensor 30 rises, and the temperature difference of the detected temperatures of the F evaporator sensor 30 of refrigeration operational mode and the detected temperatures of freezing operational mode diminishes.Therefore, when this temperature difference becomes the design temperature difference when following, promptly measure the bled R evaporimeter 34 of freezing operational mode of cold-producing medium.
(variation)
In addition, the same with above-mentioned detection method in this detection method, also can only when recurring 3 times, just judge the valve leakage has taken place.
Use above-mentioned valve leakage detection method, can reliably measure triple valve 68 whether the valve leakage has taken place.
B. remove the method for rubbish
Then when judging triple valve 68 and taken place that valve leaks, remove and cause the control method of the rubbish that this valve leaks to describe.
1. remove method for the 1st kind.
When triple valve 68 valves take place leaked, the 1st kind of method of removing rubbish be, utilizes solenoid to force plunger 106 motions, thereby force valve body 110 motions, removes attached to the rubbish around it.
2. remove method for the 2nd kind.
Removing method as the 2nd kind, is to remove outside the method at the 1st kind, adds the operating frequency that makes compressor 20 and rises, the refrigerant pressure that flows through triple valve 68 inside is risen, internal circulating load is increased, thereby improve the flow velocity of the rubbish attachment portion periphery cold-producing medium of valve body 110, wash away rubbish.Like this, forcing merely outside valve body 110 motions, add with cold-producing medium again and wash away rubbish, so can reliably remove rubbish.
3. the 3rd kind of rubbish is removed method
Removing method as the 3rd kind of rubbish, is to measure when valve having taken place leaking, making valve body 110 stop at the middle part, cold-producing medium is flowed to both direction.Under this state, the operating frequency of compressor 20 is risen, pressure is risen, and increase internal circulating load, thereby the flow velocity of the cold-producing medium of the rubbish attachment portion periphery of raising valve body 110 washes away rubbish.
4. the 4th kind of rubbish is removed method
The 1st and the 2nd kind of rubbish remove in the method, make the action of valve body 110 (plunger 106) carry out about 4 seconds, in order to accelerate, improve voltage, action is carried out about 1 second.Like this, valve body 110 sharply moves, and strengthens the impulsive force of valve motion, thereby removes rubbish easily.
C. valve leaks the control method of defrosting.
Then according to the flow chart of Fig. 8, to carrying out the valve leak detection and having carried out aforesaid rubbish and removed the control method that valve still can not remove rubbish after the control time leaks defrosting and describe.
In step 1, that crosses as described above is such, detects whether the valve leakage has taken place.Step 2 has taken place to enter when valve leaks.Conventional running does not take place to return when valve leaks.
In step 2, carry out the rubbish of above-mentioned explanation and remove control method, remove rubbish and enter step 3.
In step 3, judge whether once more to have measured the valve leakage, do not measure the valve leakage and just return conventional running, then enter step 4 if measure valve leakage (that is, measuring No. 2 valves leakages altogether).
In step 4, leak because measure No. 2 valves, F evaporimeter 24 and R evaporimeter 34 might too be cooled off and frosting is taken place, thus carry out the defrosting of F evaporimeter 24 and R evaporimeter 34, and enter step 5.
In step 5, if when after defrosting finishes, measuring valve once more and leaking (, measure No. 3 valves altogether and leak), enter step 6, return conventional running when not measuring.
In step 6, because 3 times have been measured the valve leakage, so defrosting control interval of R evaporimeter 34 is switched to the defrost interval of F evaporimeter 24.This is because the defrosting running than F evaporimeter 24 is big at interval at interval for the defrosting of R evaporimeter 34 running when routine turn round, so turn round the interval when carrying out with the defrosting of F evaporimeter 34, frosting might take place.
On the other hand, see this defrosting control method from different viewpoints, R evaporimeter 34 leaks the frosting that necessary degree can take place to surpass because of valve.Be judged as the frosting in the conventional running and carry out the defrosting control the same if this valve is leaked the frosting that causes, then will surpass the defrosting running of necessary degree with conventional running.Therefore, when measuring such valve for 3 times and leak, make defrosting running that the defrosting running of R evaporimeter 34 becomes F evaporimeter 24 at interval at interval, distinguish out valve leak detection and frosting and detect, can receive the effect that prevents invalid defrosting control.
In addition, in the refrigerator 10 of the foregoing description, be illustrated according to freeze cycle shown in Figure 2, but need not freeze cycle shown in Figure 2, replacing as shown in Figure 9, the freeze cycle that the position of F evaporimeter 24 is different equally also can be implemented.
As mentioned above, if refrigerator of the present invention can reliably be measured valve and leak.
Claims (12)
1. refrigerator, its with compressor, condenser, refrigeration with throttle mechanism, the refrigeration corresponding with refrigerating chamber with evaporimeter, freezingly be connected and constitute refrigerant flow path with evaporimeter with throttle mechanism and with corresponding freezing of refrigerating chamber,
Switch refrigerant flow path by valve system, and having through refrigeration makes cold-producing medium flow into the refrigeration operational mode of refrigeration with vaporizer side with throttle mechanism, and make cold-producing medium only flow into freezing freezing operational mode with evaporimeter with throttle mechanism through freezing, it is characterized in that possessing:
Detect the 1st evaporator temperature checkout gear of described refrigeration with the temperature of evaporimeter;
Detect described freezing the 2nd evaporator temperature checkout gear of using the temperature of evaporimeter; And
Valve leaks judgment means, and this valve leaks judgment means according to the detected temperature of described the 1st, the 2nd evaporator temperature checkout gear, and the cold-producing medium in the valve system is judged to freezing valve leakage with evaporimeter with the valve leakage or the cold-producing medium of evaporimeter to refrigeration.
2. refrigerator according to claim 1 is characterized in that,
Described refrigerator also is provided with and detects the refrigeration evaporator temperature checkout gear of refrigeration with evaporator temperature,
In freezing operational mode, in case the temperature that refrigeration is measured with the evaporator temperature checkout gear below design temperature, described valve leaks judgment means judges that promptly valve system has cold-producing medium to the valve leakage of refrigeration with evaporimeter.
3. refrigerator according to claim 1 is characterized in that,
Described refrigerator also is provided with and detects the refrigeration evaporator temperature checkout gear of refrigeration with evaporator temperature,
In freezing operational mode, the temperature of measuring with the evaporator temperature checkout gear when refrigeration is below design temperature, and when the operating frequency of compressor was higher than setpoint frequency, described valve leaks judgment means judged that promptly valve system has cold-producing medium to leak to the valve of refrigeration with evaporimeter.
4. refrigerator according to claim 1 is characterized in that,
Described refrigerator also is provided with and detects the refrigeration evaporator temperature checkout gear of refrigeration with evaporator temperature,
In freezing operational mode, in case in the design temperature scope, described valve leaks judgment means judges that promptly valve system has cold-producing medium to refrigerating the valve leakage of using evaporimeter with the difference of the temperature of evaporator temperature checkout gear when the refrigeration operational mode for the temperature that refrigeration is measured with the evaporator temperature checkout gear and this refrigeration.
5. refrigerator according to claim 1 is characterized in that,
Described refrigerator also is provided with and detects the freezing freezing evaporator temperature checkout gear of using with evaporator temperature,
In freezing operational mode, when the freezing temperature of measuring with the evaporator temperature checkout gear with should be freezing with the evaporator temperature checkout gear when difference of the temperature during in the refrigeration operational mode is in the design temperature scope, described valve leaks judgment means judges that promptly valve system has cold-producing medium to the valve leakage of refrigeration with evaporimeter.
6. refrigerator according to claim 1 is characterized in that,
Described refrigerator also is provided with and detects the freezing freezing evaporator temperature checkout gear of using with evaporator temperature,
In the refrigeration operational mode, if the freezing temperature of measuring with the evaporator temperature checkout gear with should be freezing with difference of the temperature of evaporator temperature checkout gear when the refrigeration operational mode in the design temperature scope, described valve leaks judgment means judges that promptly valve system has cold-producing medium to the freezing valve leakage of using evaporimeter.
7. refrigerator according to claim 1 is characterized in that,
Also be provided with when valve leaks judgment means and be judged as valve when leaking, force valve system to move to remove the rubbish removal device of rubbish in the valve system.
8. refrigerator according to claim 7 is characterized in that,
When valve leakage judgment means was judged as the valve leakage, described rubbish removal device limit was risen the operating frequency of compressor, and the limit forces the valve system action.
9. refrigerator according to claim 7 is characterized in that,
When valve leakage judgment means was judged as the valve leakage, described rubbish removal device limit made the operating frequency of compressor rise the Halfway Stopping that the limit makes valve system switch in refrigerant flow path.
10. refrigerator according to claim 7 is characterized in that,
When valve leakage judgment means was judged as the valve leakage, described rubbish removal device forced valve system with the time action shorter than the actuation time of routine.
11. refrigerator according to claim 10 is characterized in that,
Also be provided with the defrosting control device, remove after the rubbish valve when described rubbish removal device and leak judgment means and be judged as valve once more when leaking, this defrosting control device carries out valve with evaporimeter and refrigeration with evaporimeter and leaks with defrosting and turn round freezing.
12. refrigerator according to claim 11 is characterized in that,
Described defrosting control device is controlled to be freezing defrosting running with evaporimeter under the conventional state shorter at interval with the defrosting running of evaporimeter than refrigeration at interval,
When carrying out after valve leaks with the defrosting running, valve leaks judgment means when judging valve once more and leaking, and makes freezingly to become the freezing defrost interval of using evaporimeter with evaporimeter and refrigeration with the defrosting running interval of evaporimeter.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP254190/1998 | 1998-09-08 | ||
| JP25419098A JP3456902B2 (en) | 1998-09-08 | 1998-09-08 | refrigerator |
| JP254190/98 | 1998-09-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1247302A CN1247302A (en) | 2000-03-15 |
| CN1332165C true CN1332165C (en) | 2007-08-15 |
Family
ID=17261501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991086910A Expired - Fee Related CN1332165C (en) | 1998-09-08 | 1999-06-16 | Refrigerator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3456902B2 (en) |
| KR (1) | KR100332290B1 (en) |
| CN (1) | CN1332165C (en) |
| TW (1) | TW558625B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4028688B2 (en) * | 2001-03-21 | 2007-12-26 | 株式会社東芝 | refrigerator |
| CN1314930C (en) * | 2002-01-15 | 2007-05-09 | 株式会社东芝 | Refrigerator having alarm device for alarming leakage of refrigerant |
| KR100470479B1 (en) * | 2002-08-12 | 2005-02-07 | 위니아만도 주식회사 | Method for detecting refrigerant leakage of a kimchi storage |
| JP4028779B2 (en) * | 2002-08-19 | 2007-12-26 | 株式会社東芝 | Compressor refrigerant leak detection device |
| KR20070112664A (en) * | 2006-05-22 | 2007-11-27 | 엘지전자 주식회사 | Refrigerant valve control method of refrigerator |
| KR100808180B1 (en) * | 2006-11-09 | 2008-02-29 | 엘지전자 주식회사 | Refrigeration cycle unit and refrigerator |
| KR100826180B1 (en) * | 2006-12-26 | 2008-04-30 | 엘지전자 주식회사 | Refrigerator and its control method |
| KR20110072441A (en) * | 2009-12-22 | 2011-06-29 | 삼성전자주식회사 | Refrigerator and its operation control method |
| JP5931329B2 (en) * | 2010-10-07 | 2016-06-08 | 株式会社東芝 | refrigerator |
| JP6014351B2 (en) * | 2012-04-12 | 2016-10-25 | ホシザキ株式会社 | Auger type ice making machine and control method thereof |
| KR20140056965A (en) * | 2012-11-02 | 2014-05-12 | 엘지전자 주식회사 | An air conditioner and a control method thereof |
| JP2015087050A (en) * | 2013-10-30 | 2015-05-07 | ホシザキ電機株式会社 | Ice machine |
| CN105042985B (en) * | 2015-07-10 | 2017-09-22 | 合肥美菱股份有限公司 | A kind of distribution method of double systems connected in parallel refrigerator flow |
| CN105371557B (en) * | 2015-12-02 | 2018-05-01 | 四川长虹电器股份有限公司 | A kind of refrigerator and controlling method for refrigerator |
| CN109781363A (en) * | 2018-12-28 | 2019-05-21 | 青岛海尔股份有限公司 | The detection method and detection device of refrigerator leakproofness |
| CN111503948A (en) * | 2020-04-29 | 2020-08-07 | 广东美的暖通设备有限公司 | Multi-split air conditioning system, method and device for detecting leakage of refrigeration valve of multi-split air conditioning system and storage medium |
| CN111486612A (en) * | 2020-04-29 | 2020-08-04 | 广东美的暖通设备有限公司 | Multi-split air conditioning system, heating valve leakage detection method and device thereof, and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269154A (en) * | 1996-03-29 | 1997-10-14 | Sanyo Electric Co Ltd | Condenser |
| JPH1038410A (en) * | 1996-07-24 | 1998-02-13 | Yamaha Motor Co Ltd | Refrigerant circulation type heat transfer device |
-
1998
- 1998-09-08 JP JP25419098A patent/JP3456902B2/en not_active Expired - Fee Related
-
1999
- 1999-03-12 TW TW088103850A patent/TW558625B/en active
- 1999-05-03 KR KR1019990015841A patent/KR100332290B1/en not_active IP Right Cessation
- 1999-06-16 CN CNB991086910A patent/CN1332165C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269154A (en) * | 1996-03-29 | 1997-10-14 | Sanyo Electric Co Ltd | Condenser |
| JPH1038410A (en) * | 1996-07-24 | 1998-02-13 | Yamaha Motor Co Ltd | Refrigerant circulation type heat transfer device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100332290B1 (en) | 2002-04-12 |
| KR20000022624A (en) | 2000-04-25 |
| JP2000088427A (en) | 2000-03-31 |
| TW558625B (en) | 2003-10-21 |
| JP3456902B2 (en) | 2003-10-14 |
| CN1247302A (en) | 2000-03-15 |
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