CN1182360C - Method for controlling refrigeratory - Google Patents
Method for controlling refrigeratory Download PDFInfo
- Publication number
- CN1182360C CN1182360C CNB991053877A CN99105387A CN1182360C CN 1182360 C CN1182360 C CN 1182360C CN B991053877 A CNB991053877 A CN B991053877A CN 99105387 A CN99105387 A CN 99105387A CN 1182360 C CN1182360 C CN 1182360C
- Authority
- CN
- China
- Prior art keywords
- evaporimeter
- refrigeration
- refrigerating chamber
- refrigerator
- freezing
- 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 - Fee Related
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
-
- 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)
- Defrosting Systems (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A method for controlling refrigerator, a three-way valve 68 is first switched, and the refrigerant only flows in an evaporator 52 for refrigeration from the beginning, after a certain time T1, the defrosting operation is performed when the evaporator 50 for refrigeration is lower than a certain temperature D1. The present invention can perform the defrosting operation in due course and can prevent cooling deterioration due to unneeded defrosting or excessive frosting.
Description
Technical field
The present invention relates to control method of refrigerator.
Background technology
Though existing refrigerator is provided with refrigerating chamber, vegetable compartment, refrigerating chamber, the evaporimeter of the freeze cycle that these chambers are cooled off has only 1.Therefore, the duration of runs of compressor is depended in the defrosting of this evaporimeter.Specifically, when surpass certain hour accumulation duration of runs of compressor, heat and defrost being located at Defrost heater on the evaporimeter.
Yet, set time of above-mentioned defrosting running beginning, set by experiment according to following condition, that is: contain and place morely than the load of the food of juicy etc., indoor is high temperature, high humility, and the switching number of times of refrigerator doors is more.
But, because the amount of the frosting of evaporimeter depends on the amount of moisture of moisture that load produced that refrigerator is indoor and the extraneous air that enters when refrigerator doors opens and closes, so when the load of contained humidity less or low temperature, low humidity, and refrigerator doors open and close number of times more after a little while, surpass the shortcoming that defrosts necessarily indoor temperature is risen thereby exist.
On the contrary, when the moisture of load surpass to set the more or high temperature in above ground, high humidity, and refrigerator doors open and close number of times more for a long time, also exist because of undue frosting produces evaporimeter and stop up, cause the shortcoming of cooling off deterioration.
Summary of the invention
Therefore, the shortcoming in view of above-mentioned existence the objective of the invention is to, provide a kind of relate to the defrosting of evaporimeter and defrost in due course, prevent the control method of refrigerator that unnecessary defrosting or the cooling that is produced because of undue frosting worsen.
According to controlling method for refrigerator of the present invention, separate the body of refrigerator up and down and be divided into refrigerating space and reefer space by insulator, at refrigerating space, from last the 1st refrigerating chamber that is provided with in order, the 2nd refrigerating chamber, at reefer space refrigerating chamber is set, the freezing evaporimeter of using that refrigeration that the 1st refrigerating chamber and the 2nd refrigerating chamber use is used with evaporimeter and refrigerating chamber is set, only switch in the refrigerator of triple valve of usefulness with making with evaporimeter and freezing the 1st flow of refrigerant that flows in evaporimeter in refrigeration making being provided with from the cold-producing medium of compressor in freezing the 2nd flow of refrigerant mobile in evaporimeter from the cold-producing medium of compressor, be characterized in, when switch three-way valve begins the 2nd flow of refrigerant, through behind the certain hour, when refrigeration was lower than uniform temperature with evaporimeter, refrigeration was with the evaporimeter running that defrosts.
Above-mentioned control method of refrigerator, when switch three-way valve begins the 2nd flow of refrigerant, that is, begin with flowing through cold-producing medium the evaporimeter from only freezing, to through behind the certain hour, when being lower than uniform temperature with evaporimeter, refrigeration just refrigerates defrosting running with evaporimeter.
This be since behind the certain hour refrigeration be lower than uniform temperature with evaporimeter and just can be judged as on refrigerating and have produced the state of undue frosting with evaporimeter, so defrost.On the other hand, when being higher than uniform temperature, owing to the amount that can be judged as frosting is less, so do not defrost.
In addition,, also can the refrigeration pressure fan be set on refrigerating with evaporimeter, when switch three-way valve begins the 2nd flow of refrigerant, drive the refrigeration pressure fan for improving the precision of decision defrosting.
Description of drawings
Fig. 1 is the front view of the refrigerator of expression one embodiment of the invention.
Fig. 2 is a front view of refrigerator doors being opened the housing of back state.
Fig. 3 is the longitudinal section at refrigerator shell rear.
Fig. 4 is the cutaway view along A-A line among Fig. 1.
Fig. 5 is the allocation plan that constitutes each device of freeze cycle.
Fig. 6 is the block diagram of expression refrigerant flow path.
Fig. 7 is the block diagram of the electrical system of refrigerator.
Fig. 8 is the flow chart of expression refrigeration with the state of a control of evaporator defrost running.
Fig. 9 be defrost the running occasion time diagram.
Figure 10 be defrost the running occasion time diagram.
The specific embodiment
Below, in conjunction with Fig. 1～Fig. 6 one embodiment of the invention is described.
Fig. 1 is the front view of the refrigerator 10 of present embodiment, and Fig. 2 is a front view of each fan door of refrigerator 10 being opened the back state.
The structure of refrigerator 10 at first, is described in conjunction with Fig. 1 and Fig. 2.
On housing 12, begin to be provided with refrigerating chamber 14, vegetable compartment 16, temperature switching chamber 18 and refrigerating chamber 22 from the upper strata as refrigerator 10 bodies.In addition, be provided with ice-making compartment 20 in the left side of temperature switching chamber 18.Be equipped with insulator 24 and switch between chamber 18, the ice-making compartment 20 in vegetable compartment 16 and temperature.
On refrigerating chamber 14, be provided with the refrigerating-chamber door 14a that opens and closes with hinge.And, be provided with indoor temperature is kept cooling chamber 26 into about about 0 ℃ in the bottom of this refrigerating chamber 14.
Switch the temperature that is provided with drawer type on the chamber 18 in temperature and switch chamber door 18a, temperature switching chamber container 30 just can be pulled out with this door.
Also be provided with the refrigerating chamber door 22a of drawer type on the refrigerating chamber 22, refrigerated container 32 just can be pulled out with this door.
As shown in Figure 4, near the top of ice-making compartment 20, be provided with ice maker 34, thereunder be provided with ice container 36.
Below, in conjunction with Fig. 3～Fig. 6, the freeze cycle structure and the configuration thereof of refrigerator 10 are described.
At first, as shown in Figure 4, compressor 46 is located at the bottom of housing 12, promptly is located in the Machine Room 48 of being located at refrigerating chamber 22 rear lower portion.The evaporimeter of refrigerator 10 has refrigeration to use and 2 of freezing usefulness, refrigerates the rear that is configured in vegetable compartment 16 with evaporimeter 50, the freezing top, rear that is located at refrigerating chamber 22 with evaporimeter 52.In addition, be provided with refrigeration above with evaporimeter 50 with pressure fan 54, be provided with freezing usefulness pressure fan 56 above with evaporimeter 52 freezing in refrigeration.Be provided with Defrost heater 96 in refrigeration below with evaporimeter 50, and be provided with Defrost heater 98 below with evaporimeter 52 freezing.
In addition, above refrigerating, be provided with the temperature sensor 102 that this refrigeration is detected usefulness with the temperature of evaporimeter 50 with evaporimeter 50.
And the left side wall and the base plate of temperature switching chamber 18 become heat insulation structural.Like this, even the indoor temperature that temperature is switched chamber 18 is set the temperature identical with refrigerating chamber for, can not be subjected to the temperature effect of existing refrigerating chamber 22 grades on every side yet.In addition,, temperature also becomes heat insulation structural, so also can not be subjected to freezing temperature effect with evaporimeter 52 because switching the backplate of chamber 18.
In addition as shown in Figure 5, more than 62 bending of condenser and be tabular, and as shown in Figure 4, be provided in the below, bottom of refrigerating chamber 22.In addition, as shown in Figure 3, accumulator 74 is installed in freezing right side with evaporimeter 52.
The configuration of this freezing cycle device of general description is Fig. 5, and the block diagram of representing its refrigerant flow path is Fig. 6.Below, the mobility status of cold-producing medium is described in conjunction with this Fig. 5 and Fig. 6.
The cold-producing medium that flows out from compressor 46 arrives triple valve 68 through muffler 58, radiating tube 60, condenser 62, frost prevention pipe 64, drier 66.In triple valve 68, with refrigerant flow path branch, a square tube is to refrigeration capillary 70, and the opposing party is led to freezing with capillary 72.Arrive described refrigeration with evaporimeter 50 from refrigeration with capillary 70, unite two into one, arrive described freezing again with evaporimeter 52 with freezing outlet side with capillary 72.Then, get back to compressor 46 by accumulator 74, suction line 76.
And, under the situation that refrigerating chamber 14, vegetable compartment 16, refrigerating chamber 22 and ice-making compartment 20 are cooled off, with triple valve 68 cold-producing medium from compressor 40 is switched in refrigeration and flows in freezing with 52 pairs directions of evaporimeter with evaporimeter 50.Below, with mobile the 1st pattern that is called of this cold-producing medium.And in the flowing of the cold-producing medium of the 1st pattern, make refrigeration with pressure fan 54 and freezingly all rotate and cold air is delivered to each chamber with pressure fan 56 both sides.
In addition, when refrigerating chamber 14 and vegetable compartment 16 is not cooled off, when only ice-making compartment 20 and refrigerating chamber 22 being cooled off, switch three-way valve 68 only flows cold-producing medium with evaporimeter 52 to freezing.Below, this pattern is called the 2nd pattern.And in the flowing of the cold-producing medium of the 2nd pattern, only make and freezingly rotate so that refrigerating chamber 22 and ice-making compartment 20 are cooled off with pressure fan 56.
Below, the mobility status of cold air in the freeze cycle that said structure is described in conjunction with Fig. 3 and Fig. 4 of refrigerator 10.
At first, illustrate by the mobility status that refrigerates the cold air that cools off with evaporimeter 50.
Cold air by refrigeration is cooled off with evaporimeter 50 is admitted to the refrigeration branch space 78 that is positioned at vegetable compartment 16 rears by refrigeration with pressure fan 54.The top of this refrigeration branch space 78 is connected with the refrigeration pipeline 80 that is located at refrigerating chamber 14 back sides, thereby cold air is delivered to this refrigeration pipeline 80.As shown in Figure 3, refrigeration pipeline 80 is divided into two strands in the bottom of refrigerating chamber 14, roughly is the U font.Front at refrigeration pipeline 80 is provided with the blow-off outlet 82 that every predetermined distance blows out cold air, and cold air is blown into the refrigerating chamber 14 from these blow-off outlets 82.The below (with reference to Fig. 4) of the cold air that refrigerating chamber 14 is cooled off by cooling chamber 26, storage tank 44 flow into be located at refrigeration with pressure fan 54 and refrigeration with the return-air duct 84 (with reference to Fig. 3) of evaporimeter about 50, blow out to the below of refrigeration with evaporimeter 50.And this cold air cools off with evaporimeter 50 with refrigeration again, arrives the position of refrigeration with pressure fan 54.
In addition, cold air blows out to the rear lower portion of vegetable compartment 16 from refrigeration branch space 78, and vegetable compartment 16 is cooled off (with reference to Fig. 4).This cold air the bottom of vegetable container 28 from after flow forward, arrive the return-air duct 88 (with reference to Fig. 3) that is located at spacer body 86 inside that refrigerating chamber 14 and vegetable compartment 16 are separated.This return-air duct 88 is connected with described return-air duct 84, and the cold air that this vegetable compartment 16 is cooled off is also at refrigeration circulate below with evaporimeter 50 (with reference to Fig. 3).
The following describes mobility status by the freezing cold air that cools off with evaporimeter 52.
By the freezing cold air that cools off with evaporimeter 52, arrive freezing branch space 90.The top of this freezing branch space 90 communicates with ice maker 34, thereby cold air blows out to ice maker 34 from this top.In addition, the bottom of freezing branch space 90 communicates with hole 33 in the backplate upper shed of the refrigerated container 32 of refrigerating chamber 22, thereby cold air blows out from this bottom to refrigerated container 32 inside.
Ice-making compartment 20 is carried out cooled cold air flow, cooled cold air is carried out in refrigerated container 32 inside of refrigerating chamber 22 flow in the front of refrigerating chamber 22 in the front of refrigerating chamber 22.And this cold air flows downwards along the front of refrigerated container 32, arrives return-air duct 92 by the bottom.The cold air that flows into return-air duct 92 circulates in evaporimeter 52 freezing.
Right side at freezing branch space 90, be provided with cold air is delivered to the throttle setting 94 that temperature is switched chamber 18 usefulness, open and close by air door, can adjust the air conditioning quantity of delivering to temperature switching chamber 18, thereby its indoor temperature is adjusted this throttle setting 94.Temperature is switched chamber 18 carry out cooled cold air, flow into the freezing return-air duct 95 that communicates with evaporimeter 52 from the bottom that temperature is switched chamber 18 freezing and circulate with evaporimeter 52.
The structure of the control system in this refrigerator 10 is described below in conjunction with Fig. 7.
As shown in Figure 4, the control part of this refrigerator 10 100 is made of microcomputer, is located at the upper rear portion of housing 12.
As shown in Figure 7, be connected with on this control part 100 compressor 46, triple valve 68, ice maker 34, refrigeration with pressure fan 54, freezing with pressure fan 56, refrigeration with the Defrost heater 96 of evaporimeter 50, freezing with evaporimeter 52 Defrost heater 98 and refrigeration with the temperature sensor 102 of evaporimeter 50.
In the refrigerator 10 of said structure, the control method for refrigerating with the defrosting running occasion of evaporimeter 50 describes in conjunction with the flow chart of Fig. 8 and the time diagram of Fig. 9, Figure 10.
In step 1, switch three-way valve 68 under the situation of the flow of refrigerant that becomes the 2nd pattern, enters step 2, finishes in the occasion of the flow of refrigerant of the 1st pattern.That is, by the flow of refrigerant of the 2nd pattern, only ice-making compartment 20 becomes the state that is cooled with refrigerating chamber 22.And use evaporimeter 50 for refrigeration, become the state that cold-producing medium flows.Therefore, carry out the heat exchange of the room air of this refrigeration usefulness evaporimeter 50 and vegetable compartment 16, refrigerating chamber 14, temperature begins to rise.
In step 2, the flow of refrigerant of the 2nd pattern begins the back and detects whether pass through certain time interval T 1, if through out-of-date, then enter step 3, otherwise continues the state of this step.This time T 1 is about 10 minutes.
In step 3, if the temperature that refrigerates with evaporimeter 50 is more than the uniform temperature D1 (0 ℃), just enter step 4, begin the defrosting running.If below the uniform temperature D1, then do not make the defrosting running begin and be finished.Here it is, if refrigeration does not rise to more than the D1 with evaporimeter 50 temperature, it is more and defrost just to be judged as the amount of frosting, and if the temperature rising, then the amount of frosting just defrosts less and not.Thus, can determine suitable defrosting time.
Fig. 9 rises to the time diagram that the above defrosting running of uniform temperature D1 does not begin occasion after the certain time interval T 1, Figure 10 is the time diagram that does not rise to the working order that begins more than the uniform temperature D1 to defrost because of certain time interval T 1 back refrigeration with the temperature of evaporimeter 50.Here, T2 is the time of the flow of refrigerant of the 1st pattern, and T3 is the time of the flow of refrigerant of the 2nd pattern.
As mentioned above, can not use and produce undue frosting on the evaporimeter 50, and when unnecessary, running does not defrost in refrigeration.
Below, describe with regard to the variation of above-mentioned control method.
This variation is in the step 1 of Fig. 8, when being judged as the flow of refrigerant of the 2nd pattern, only to make refrigeration evaporimeter 50 running certain time interval T 1.Thus, promote refrigeration with the indoor heat exchange of evaporimeter 50 and refrigerating chamber 14, vegetable compartment 16, the amount of frosting temperature more after a little while rises, the amount of frosting more for a long time temperature rise just little, thereby further improve the defrosting decision precision in period.
As mentioned above, adopt control method of refrigerator of the present invention, owing to can accurately determine defrosting period, worsen and reduce because of surpassing necessity and defrost and make the chance of temperature rising so can reduce the cooling that causes with the undue frosting of evaporimeter because of refrigeration, thus the retention of raising food.
Claims (3)
1. a control method of refrigerator is separated the body of refrigerator up and down and is divided into refrigerating space and reefer space by insulator, at refrigerating space, from last the 1st refrigerating chamber, the 2nd refrigerating chamber of being provided with in order, at reefer space refrigerating chamber is set,
The freezing evaporimeter of using that refrigeration that the 1st refrigerating chamber and the 2nd refrigerating chamber use is used with evaporimeter and refrigerating chamber is set,
Only switch in the refrigerator of triple valve of usefulness with making with evaporimeter and freezing the 1st flow of refrigerant that flows in evaporimeter in refrigeration making being provided with from the cold-producing medium of compressor in freezing the 2nd flow of refrigerant mobile in evaporimeter from the cold-producing medium of compressor, it is characterized in that
When switch three-way valve begins the 2nd flow of refrigerant,, when refrigeration is lower than uniform temperature with evaporimeter, refrigerates with evaporator defrost and turn round through behind the certain hour.
2. control method of refrigerator as claimed in claim 1 is characterized in that,
The refrigeration pressure fan is set on refrigerating with evaporimeter,
When switch three-way valve begins the 2nd flow of refrigerant, refrigeration is driven with pressure fan.
3. control method of refrigerator as claimed in claim 1 is characterized in that the 2nd refrigerating chamber is a vegetable compartment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP119247/98 | 1998-04-28 | ||
| JP10119247A JPH11311473A (en) | 1998-04-28 | 1998-04-28 | Method for controlling refrigerator |
| JP119247/1998 | 1998-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1233735A CN1233735A (en) | 1999-11-03 |
| CN1182360C true CN1182360C (en) | 2004-12-29 |
Family
ID=14756613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991053877A Expired - Fee Related CN1182360C (en) | 1998-04-28 | 1999-04-28 | Method for controlling refrigeratory |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH11311473A (en) |
| KR (1) | KR100348068B1 (en) |
| CN (1) | CN1182360C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050210898A1 (en) * | 2004-03-23 | 2005-09-29 | Samsung Electronics Co., Ltd. | Refrigerator and control method thereof |
| JP4575281B2 (en) * | 2005-11-09 | 2010-11-04 | 株式会社東芝 | refrigerator |
| KR101508773B1 (en) * | 2007-01-05 | 2015-04-03 | 엘지전자 주식회사 | Refrigerator refriging indepentently |
| KR101031132B1 (en) | 2008-07-10 | 2011-04-27 | 가부시끼가이샤 도시바 | Refrigerator |
| CN101957116B (en) * | 2009-07-17 | 2014-03-26 | 海尔集团公司 | Method for controlling defrosting of refrigerator |
| CN102116555A (en) * | 2011-04-01 | 2011-07-06 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN102901319B (en) * | 2011-07-29 | 2016-06-29 | 松下电器研究开发(苏州)有限公司 | The temperature-controlled process of refrigerator |
| CN102261809B (en) * | 2011-08-10 | 2013-03-20 | 海信容声(广东)冰箱有限公司 | Control system and control method for frostless refrigerator heater |
| CN104132498A (en) * | 2014-08-05 | 2014-11-05 | 滁州富达机械电子有限公司 | Water chiller system capable of being automatically defrosted by heat of compressor |
| JP6760980B2 (en) * | 2018-01-30 | 2020-09-23 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
| CN109373655B (en) * | 2018-10-24 | 2020-04-07 | 珠海格力电器股份有限公司 | Defrosting method and refrigeration equipment |
| CN111351306A (en) * | 2020-03-10 | 2020-06-30 | 合肥美的电冰箱有限公司 | Refrigeration equipment, control method and control device thereof and storage medium |
| CN111895707B (en) * | 2020-07-20 | 2021-09-24 | 海信容声(广东)冰箱有限公司 | Refrigerator defrosting method and device and ice machine |
-
1998
- 1998-04-28 JP JP10119247A patent/JPH11311473A/en active Pending
-
1999
- 1999-04-28 KR KR1019990015167A patent/KR100348068B1/en not_active IP Right Cessation
- 1999-04-28 CN CNB991053877A patent/CN1182360C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1233735A (en) | 1999-11-03 |
| KR100348068B1 (en) | 2002-08-09 |
| JPH11311473A (en) | 1999-11-09 |
| KR19990083551A (en) | 1999-11-25 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |