CN108885050A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN108885050A CN108885050A CN201680082180.XA CN201680082180A CN108885050A CN 108885050 A CN108885050 A CN 108885050A CN 201680082180 A CN201680082180 A CN 201680082180A CN 108885050 A CN108885050 A CN 108885050A
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- Prior art keywords
- during
- operating
- sensor
- cooling operating
- refrigerator
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Classifications
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
Abstract
Refrigerating circulatory device (81) is configured to the refrigerant during cooling operating and recycles according to the sequence of compressor (1), water cooled condenser (2a), air cooled condenser (2b), decompressor and evaporator (4).Drain pan (4) stores the draining generated by evaporator (4).Water cooled condenser (2a) is housed in drain pan (4).Fan (5b) conveys air to air cooled condenser (2b).Include during cooling operating during the operating that defrosts after the first cooling operating during and during the first cooling operating after the second cooling operating during.Revolving speed of the revolving speed of the fan (5b) at least part during first cooling operating less than the fan (5b) during the second cooling operating.
Description
Technical field
The present invention relates to a kind of refrigerators.
Background technique
As previous refrigerator, there is the refrigerator for having following refrigerant circulation loop, the refrigerant circulation loop is by being piped
It is connected with storeroom, compressor, multiple condensers, decompressor and evaporator.Refrigeration cycle is made of above structure, and is led to
The driving of overcompression machine cools down storeroom.
In previous refrigerator, carries out cooling to air using evaporator and the foodstuff being stored in storeroom is carried out
It is cooling.Temperature in the refrigerator is 2~5 DEG C under refrigeration purposes etc., and in the case where freezing purposes, temperature is reduced to -20 DEG C~-15 DEG C,
Therefore need to make 0 DEG C of temperature of evaporator or less.As a result, the vapor in air in refrigerator becomes condensate liquid and attached
In evaporator, then be cooled and freeze (frosting).If making refrigerator long time running, frosting is carried out, and frost is in evaporator table
Surface layer is folded.As a result, air is difficult to pass through, cooling performance is reduced.In order to solve this problem, it regularly carries out utilizing heater
The defrosting operating melted etc. the frost for making to adhere on an evaporator.
The draining generated due to defrosting operating is and being set to the piping of evaporator lower part to being set to refrigerator lower part
Machine Room discharge.It is provided with compressor in Machine Room, pressure fan, the draining disk for receiving draining, is soaked in draining liquid
And the first condenser to be radiated using draining and radiated using air outside the refrigerator attracted by pressure fan second
Condenser (referring to patent document 1).
Existing technical literature
Patent document
Patent document 1:Japanese Unexamined Patent Application 58-221369 bulletin
Summary of the invention
Problem to be solved by the invention
After defrosting operating, draining is accumulated in draining disk.Since draining is low temperature, so the first condenser dissipates
Heat increases.If the revolving speed per unit time of pressure fan is constant, the heat dissipation capacity of the second condenser is also constant, therefore, if
Two condensers are regarded to be whole, then the incrementss of heat dissipation capacity and the heat dissipation capacity of the first condenser correspondingly increase.When heat dissipation capacity increases
Added-time, condensation temperature reduces, therefore can reduce the power of compressor, so saving energy.
But if heat dissipation capacity is excessive, liquid refrigerant can invade condenser side.If liquid refrigerant lodges in high pressure
Side, then the difference of high pressure and low pressure expands, and there are the COP of refrigeration cycle (coefficient of performance, coefficient of
) etc. Performance the problem of penalties.
The present invention is made to solve problem as described above, and its purpose is to provide a kind of refrigerators, are removing
After frost operating, the performance of refrigeration cycle will not deteriorate, and being able to carry out realizes energy-efficient cooling operating.
Means for solving the problems
Refrigerator of the invention has refrigerating circulatory device and drain pan, and the refrigerating circulatory device is configured to operate cooling
Period refrigerant is recycled according to the sequence of compressor, the first condenser, the second condenser, decompressor and evaporator, the row
Water pond stores the draining generated by evaporator.First condenser is housed in drain pan.Refrigerator is also equipped with for condensing to second
The fan of device conveying air.During including the first cooling operating during cooling operating and during the second cooling operating, described first
It is cooling that first is connected at after being connected at during the defrosting operating of evaporator during cooling operating, during the described second cooling operating
After during operating.The rotation speed of the fan at least part during first cooling operating is less than the second cooling operating phase
Between in fan rotation speed.
Invention effect
According to the present invention, during the first cooling operating that there is the draining after defrosting operating, reduce the revolving speed of fan, because
This can suitably adjust heat dissipation capacity.Thereby, it is possible to realize the high operating of performance, and it can be realized energy conservation.
Detailed description of the invention
Fig. 1 is the structure chart in the section of the refrigerator of embodiment 1.
Fig. 2 is the figure for indicating to be arranged in the Machine Room of lower backside of refrigerator.
Fig. 3 is the whole figure of the refrigerator from back side.
Fig. 4 is the timing diagram for indicating the rate-determining steps of embodiment 1.
Fig. 5 is the flow chart for indicating the rate-determining steps of embodiment 1.
Fig. 6 is the structure chart in the section of the refrigerator of embodiment 2.
Fig. 7 is flow chart the step of indicating to find out the slow-speed of revolution time of the mechanic chamber fan in embodiment 2.
Fig. 8 is flow chart the step of indicating the processing of the step S204 of Fig. 7.
Fig. 9 is the structure chart of the sectional view of the refrigerator of embodiment 3.
Figure 10 is flow chart the step of indicating to find out the slow-speed of revolution time of the mechanic chamber fan in embodiment 3.
Figure 11 is the structure chart of the sectional view of the refrigerator of embodiment 4.
Figure 12 is flow chart the step of indicating to find out the slow-speed of revolution time of the mechanic chamber fan in embodiment 4.
Figure 13 is the structure chart of the sectional view of the refrigerator of embodiment 5.
Figure 14 is the figure of the relationship for the speed for indicating that the temperature of frosting degree and the evaporator 4 in defrosting operating rises.
Figure 15 is flow chart the step of indicating to find out the slow-speed of revolution time of the mechanic chamber fan in embodiment 5.
Specific embodiment
Hereinafter, using attached drawing, embodiments of the present invention will be described.
[embodiment 1]
Fig. 1 is the structure chart in the section of the refrigerator 51 of embodiment 1.
As shown in Figure 1, refrigerator 51 has refrigerating circulatory device 81.
Refrigerating circulatory device 81 has the compressor 1 being connected to, condenser 2, pressure reducer (capillary 3), evaporator 4.?
When cooling operating, refrigerant is recycled according to the sequence of compressor 1, condenser 2, pressure reducer 3, evaporator 4.
Evaporator 4 is configured at cooling chamber 10.Compressor 1, condenser 2, pressure reducer 3 are configured at Machine Room 11.Machine Room 11
It is also configured with other components aside from them, but omits and records in Fig. 1, is illustrated in Fig. 2.
The movement of the refrigerant flowed in the refrigerating circulatory device 81 is illustrated.
The high-temperature high-pressure gas refrigerant being discharged from compressor 1 passes sequentially through (the water-cooled condensation of draining evaporation condenser
Device：First condenser), mechanical chamber condenser (air cooled condenser：Second condenser), the condensation that is made of lateral tube class formation
Device 2 becomes high pressure liquid refrigerant and carrying out heat exchange with outside air.In addition, simplifying condenser 2, only table in Fig. 1
Show air cooled condenser.
The high pressure liquid refrigerant of condensation is depressurized in the pressure reducer 3 being made of pressure reducing valve, becomes the two of low-pressure low-temperature
Phase refrigerant.
Then, refrigerant is flowed into the evaporator 4 being arranged in refrigerator 51.In evaporator 4, air in refrigerator 51 with
Refrigerant carries out heat exchange.Air in refrigerator 51 is cooled down by refrigerant, and refrigerant becomes low-pressure refrigerant gas.Later, at
Compressor 1 is flowed into for the refrigerant of low-pressure gas, is pressurized and is discharged again.
Then, illustrate the flowing of the cooling air in the refrigerator 51 in embodiment 1.In Fig. 1, the arrow of solid line is indicated
Flowing of the air since storeroom 7a, 7b, 7c after being cooled in cooling chamber 10.Dotted arrow indicate to storeroom 7a,
The flowing that the air that 7b, 7c are cooled down is returned to cooling chamber.
In cooling chamber 10 and the heat exchange with refrigerant cooled air by refrigerator use fan 5a convey, and
Storeroom 7a, 7b, 7c are flowed by the wind path connecting with storeroom 7a, 7b, 7c, it is cold to being carried out in storeroom 7a, 7b, 7c
But.
By change or the blast regulator of using the revolving speed (i.e. rotation speed) per unit time of fan 5a in refrigerator
6 operation (damper), to adjust the air quantity of cooling air, to adjust the temperature of storeroom 7a, 7b, 7c.Cool storage
The cooling air of room 7a, 7b, 7c are hidden by returning to wind path, again flows into cooling chamber, and cooled down again by evaporator 4.
Refrigerator 51 is also equipped with controller 30.Controller 30 controls each component in refrigerator 51.
Then, the structure for being configured at Machine Room is illustrated.
Fig. 2 is the figure for indicating to be arranged in the Machine Room 11 of the lower backside of refrigerator 51.
Compressor 1, draining evaporation disk (drain pan) 8, draining evaporation condenser 2a, machine are provided in Machine Room 11
Tool room condenser 2b and mechanic chamber fan 5b.
The configuration of pharoid 38 is in evaporator 4 and draining evaporation between disk 8.Pharoid 38 has for heating
The heating wire of air.State setting of the knock-in type heater (Kachikomi heater) 37 directly to be contacted with evaporator 4.?
When the defrosting operating of evaporator 4, pharoid 38 and knock-in type heater 37 work.
It is equipped with hole 12 on the top of draining evaporation disk 8, what which was generated in evaporator 4 for being operated due to defrosting
Draining discharge.Draining due to gravity and through hole 12 and fall into draining evaporation disk 8 in.
Draining evaporation as water cooled condenser is housed in draining evaporation disk 8 with condenser 2a, and is being arranged
When having draining in water evaporation disk 8, it can be cooled down by draining.
It is rotated by mechanic chamber fan 5b, is taken into outside air from the side of refrigerator 51, outside air is transported to air-cooled
The condenser of formula, that is, mechanical chamber condenser 2b, cools down mechanical chamber condenser 2b.In addition, passing through the rotation of mechanic chamber fan 5b
Turn, also can convey outside air to compressor 1 and draining evaporation condenser 2a, they are cooled down.
Fig. 3 is the whole figure of the refrigerator 51 from back side.
The lateral tube 2C for high-pressure refrigerant circulation is provided in the metal plate of the side of refrigerator 51.By the side,
The refrigerant and external air flowed in lateral tube 2C carries out heat exchange.In addition, circulating like this for high-pressure refrigerant
Pipe be not only provided at side, also can be set into through the top plate of refrigerator 51.Thereby, it is possible to increase heat dissipation area.
Then, to the controlling party of the revolving speed (rotation speed) per unit time of the mechanic chamber fan 5b in embodiment 1
Method is illustrated.Fig. 4 is the timing diagram for indicating the rate-determining steps of embodiment 1.Fig. 5 is the rate-determining steps for indicating embodiment 1
Flow chart.
Referring to Fig. 4 and Fig. 5, in step s101, when the temperature for the evaporator 4 that not shown temperature sensor etc. detects
For degree than defined threshold value TH1 hours, processing entered step S102.In Fig. 4, in moment t1, as defined in the temperature ratio of evaporator 4
Threshold value TH1 is small.For threshold value TH1, it is set as estimated and is laminated with the frost of specified amount and cooling performance drop on the surface of evaporator 4
Low a certain amount of temperature.Threshold value TH1 can be obtained by testing or simulating etc..
In step s 102, controller 30 stops cooling operating, and starts defrosting operating.That is, controller 30 is by making
Compressor 1 stops, to stop cooling operating, so that knock-in type heater 37 and pharoid 38 is powered, is evaporated device 4
Defrosting.In turn, controller 30 stops mechanic chamber fan 5b.
In step s 103, when the temperature of evaporator 4 is bigger than defined threshold value TH2, processing enters step S104.Scheming
It is bigger than defined threshold value TH2 in the temperature of moment t2, evaporator 4 in 4.For threshold value TH2, it is set as removing for estimated evaporator 4
The completed temperature of frost.Threshold value TH2 can be obtained by testing or simulating etc..
In step S104, controller 30 stops defrosting operating, begins to cool operating.That is, controller 30 is by making to compress
The work of machine 1 operates to begin to cool, and stops knock-in type heater 37 and pharoid 38, terminates the defrosting of evaporator 4.
The cooling in refrigerator 1 is started again at as a result,.
The revolving speed per unit time of mechanic chamber fan 3b is set as than logical by controller 30 during the first cooling operating
Normal revolving speed X2 per unit time small revolving speed X1, be during the described first cooling operating from the end during defrosting operating
The time for the Δ t that the cooling operation start of connecting rises.The reasons why reducing revolving speed per unit time is illustrated.At the moment
T2 is accumulated in draining evaporation disk 8 by the draining that defrosting generates, therefore is drained evaporation and increased with the heat dissipation capacity of condenser 2a.
Therefore, the time Δ t after defrosting operating stops, when making the revolving speed per unit time of mechanic chamber fan 5b lower than usually operating
Revolving speed.As a result, heat dissipation capacity same when can ensure usual on one side, realizes inhibit moving for mechanic chamber fan 5b on one side
The energy-saving operation of power.
In step s105, in the case where have passed through the time Δ t of scheduled regular length from moment t2, handle into
Enter step S106.Time Δ t is the time until expecting the draining disappearance generated by defrosting or being reduced to a certain amount.As this
Time Δ t is studied, thus, it is possible to set the length of predetermined fixation in the embodiment 1 by testing or simulating etc.
Degree.
In step s 106, controller 30 is with connecting during the first cooling operating and to the cooling phase operated until terminating
Between during the i.e. second cooling operating, make the common revolving speed X2 of rotation speed change per unit time of mechanic chamber fan 3b.
Above-mentioned control method is due to according to the length that whether have passed through predetermined fixation from cooling operation start
Time Δ t controls the revolving speed per unit time of mechanic chamber fan 5b, and there is no need to be arranged for controlling mechanic chamber fan 5b
The sensor of revolving speed per unit time can be realized as energy-efficient operating, so can be realized the reduction of cost.
As described above, in the present embodiment, in the case where there is draining, can reduce every list of mechanic chamber fan 5b
The revolving speed of position time, therefore the performance of refrigeration cycle will not deteriorate, and can be realized energy conservation.Moreover, because in the feelings that there is draining
The revolving speed per unit time of mechanic chamber fan 5b is reduced under condition, therefore can reduce the noise of mechanic chamber fan 5b.
[embodiment 2]
The structure of the refrigerator of embodiment 2 is roughly the same with the structure of the refrigerator of embodiment 1, but mechanic chamber fan 5b
Control method is different, therefore describes to this point.
The amount of the draining generated due to defrosting operating is according to the operating condition to the refrigerator before defrosting operating, surrounding ring
Border and change.Accordingly change the mechanic chamber fan 5b after reducing defrosting operating by the amount with the draining per unit time
Revolving speed the duration of runs, so as to effectively utilize the Cooling and Heat Source of draining.
The refrigerator of embodiment 2~5 is also equipped with following function other than the function of the refrigerator of embodiment 1, that is, inspection
Survey or speculate draining amount and with the amount of draining accordingly set reduction mechanic chamber fan 5b revolving speed per unit time when
Between (hereinafter referred to as slow-speed of revolution time) Δ t.
Draining is more, and the heat dissipation capacity of draining evaporation condenser 2a more increases.This is because can promote to arrange by draining
Heat dissipation of the water evaporation in condenser 2a.Therefore, draining is more, even if reducing the revolving speed per unit time of mechanic chamber fan 5b
Also it is able to maintain that the time of the whole heat dissipation capacity of refrigerator 51 is longer.Therefore, in the case where draining is more, by slow-speed of revolution time Δ t
It is set to grow, in the case where draining is few, slow-speed of revolution time Δ t is set to short.In addition, at this point, Δ t and draining can also be made
Amount it is proportional.
Fig. 6 is the structure chart of the sectional view of the refrigerator 52 of embodiment 2.
The refrigerator 52 of present embodiment has opening and closing sensor 34a, 34b, 34c, examines as after defrosting operating
Survey or speculate the sensor for being accumulated in the amount for draining the draining in evaporation disk.
It in the humid air of 4 frosting of evaporator is generated since outside air is entered in refrigerator by the opening and closing of door.Cause
This, in the operating section before the operation start that defrosts, the opening and closing number of door is higher, and the time that door is opened is longer, then frosting degree
More increase.If frosting degree is more, the amount of the draining generated due to defrosting operating is more.
Door opening and closing sensor 34a output when the door of storeroom 7a is opened indicates the signal opened, in the door of storeroom 7a
When closing, output indicates the signal closed.For door opening and closing sensor 34b when the door of storeroom 7b is opened, output indicates opening
Signal, when the door of storeroom 7b is closed, output indicates the signal closed.Door of the door opening and closing sensor 34c in storeroom 7c is beaten
When opening, output indicates the signal opened, and when the door of storeroom 7c is closed, output indicates the signal closed.
Controller 30 according to the output signal of door opening and closing sensor 34a, 34b, 34c in during previous cooling operating,
Find out the slow-speed of revolution time Δ t during the cooling operating of this of mechanic chamber fan 5b.
Fig. 7 is flow chart the step of indicating to find out the slow-speed of revolution time Δ t of the mechanic chamber fan 5b in embodiment 2.
Referring to Fig. 7, in step s 201, controller 30 is by the door of the opening times N a of the door of storeroom 7a, storeroom 7b
Opening times N b, storeroom 7c the opening times N c of door be set as 0.
In step S202, controller 30 beats the summation Ta of time that the door of storeroom 7a is opened, the door of storeroom 7b
The summation Tc for the time that the summation Tb for the time opened, the door of storeroom 7c are opened is set as 0.
In step S203, in the case where defrosting operation start, processing enters step S207, does not start in defrosting operating
In the case where, processing enters step S204.
In step S204, controller 30 finds out the door of storeroom 7a based on the output signal of door opening and closing sensor 34a
Open the summation Ta of times N a and opening time.
In step S205, controller 30 finds out the door of storeroom 7b based on the output signal of door opening and closing sensor 34b
Open the summation Tb of times N b and opening time.
In step S206, controller 30 finds out the door of storeroom 7c according to the output signal that door is opened and closed sensor 34c
Open the summation Tc of times N c and opening time.
In step S207, in the case where defrosting operating terminates, processing enters step S208.
In step S208, controller 30 finds out the additive value N of Na, Nb and Nc.
In step S209, controller 30 finds out the additive value T of Ta, Tb and Tc.
In step S210, controller 30 finds out the weighting summation value Y (=w1 × N+w2 × T) of N and T.
In step S211, controller 30 finds out slow-speed of revolution time Δ t according to the size of Y.For example, it is also possible to by the slow-speed of revolution
Time, Δ t was set as the size proportional to Y.
In step S212, in the case where the power supply of refrigerator 52 disconnects, processing terminate, connects in the power supply maintenance of refrigerator 52
In the case where logical, processing returns to arrive step S201.
Fig. 8 is flow chart the step of indicating the processing of the step S204 of Fig. 7.The place of the step S205 and S206 of Fig. 7
The step of reason, is also identical with this.
In step S301, controller 30 is receiving what the door for indicating storeroom 7a was opened from door opening and closing sensor 34a
When signal, processing is made to enter step S302.
In step s 302, controller 30 starts timer.
In step S303, controller 30 is receiving what the door for indicating storeroom 7a was closed from door opening and closing sensor 34a
When signal, processing is made to enter step S304.
In step s 304, controller 30 adds timer value on the summation Ta for the time that the door of storeroom 7a is opened.
In step S305, the times N a that controller 30 opens the door of storeroom 7a increases by 1.
As described above, according to the present embodiment, based on the output of door opening and closing sensor, can speculate due to defrosting operating and
The amount of the draining of generation, and set the slow-speed of revolution time of mechanic chamber fan.
[embodiment 3]
The structure of the refrigerator of embodiment 3 is identical as the structure of the refrigerator of embodiment 1, but the control of mechanic chamber fan 5b
Method is different, therefore describes to this point.
Fig. 9 is the structure chart of the sectional view of the refrigerator 53 of embodiment 3.
The refrigerator 53 of present embodiment has outside air humidity sensor 33 as detection or the biography for the amount for speculating draining
Sensor.
Controller 30 finds out Machine Room wind according to the output signal of the humidity sensor 35 in during previous cooling operating
Fan the slow-speed of revolution time Δ t during this cooling operating of 5b.
Since the humidity of outside air is higher, then the vapor invaded by door opening and closing etc. is also more, therefore evaporator 4
Frosting changes according to the humidity of outside air.As a result, if the humidity of the outside air during the cooling operating of last time is put down
Mean value is high, then controller 30 extends the slow-speed of revolution time Δ t for reducing the revolving speed per unit time of mechanic chamber fan 5b, if
The average value of humidity is low, then controller 30 shortens slow-speed of revolution time Δ t.
Figure 10 is flow chart the step of indicating to find out the slow-speed of revolution time Δ t of the mechanic chamber fan 5b in embodiment 3.
Referring to Fig.1 0, in step S401, the average value M of the humidity of outside air is set as 0 by controller 30.
In step S402, in the case where defrosting operating has started, processing enters step S406, does not open in defrosting operating
In the case where beginning, processing enters step S403.
In step S403, controller 30 makes to handle when have passed through the stipulated time from the humidity outside last time measures
Enter step S404.
In step s 404, controller 30 receives the expression outside air humidity exported from outside air humidity sensor 33
Signal, obtain the humidity S of outside air.
In step S405, the humidity S of outside air of the controller 30 based on acquirement calculates external sky up to the present
The average value M of the humidity of gas.
In step S406, in the case where defrosting operating terminates, processing enters step S407.
In step S 407, controller 30 finds out the slow-speed of revolution time according to the size of the average value M of the humidity of outside air
Δt.For example, it is also possible to which slow-speed of revolution time Δ t is set as the size proportional to M.
In step S408, in the case where the power supply of refrigerator 53 disconnects, processing terminate, connects in the power supply maintenance of refrigerator 53
In the case where logical, processing returns to arrive step S401.
As described above, according to the present embodiment, based on the output of outside air humidity sensor, can speculate due to defrosting
The amount of operating and the draining of generation, and set the slow-speed of revolution time of mechanic chamber fan.
[embodiment 4]
The structure of the refrigerator of embodiment 4 is identical as the structure of the refrigerator of embodiment 1, but the control of mechanic chamber fan 5b
Method is different, therefore describes to this point.
Figure 11 is the structure chart of the sectional view of the refrigerator 54 of embodiment 4.
The refrigerator 54 of present embodiment has the speed probe 31 of compressor 1 as detection or the biography for the amount for speculating draining
Sensor.The revolving speed (rotation speed) per unit time of the detection compressor 1 of speed probe 31.
Controller 30 is found out according to the output signal of the speed probe 31 of the compressor 1 in during previous cooling operating
This slow-speed of revolution time Δ t of mechanic chamber fan 5b.
If the revolving speed height per unit time of compressor 1, is operated with the big refrigerating capacity being proportional to, because
This is more cooled down.The revolving speed per unit time of compressor 1 during the pervious cooling operating of defrosting operating is higher, then
Bigger cooling operating is correspondingly carried out, therefore is also increased to the frosting degree of evaporator 4.As a result, if the cooling operating of last time
The summation of the revolving speed per unit time of the compressor 1 of period is high, then controller 30 extends the per unit for making mechanic chamber fan 5b
The slow-speed of revolution time Δ t that the revolving speed of time reduces, if the revolving speed per unit time of the compressor 1 during the cooling operating of last time
Summation it is low, then controller 30 shortens the slow-speed of revolution time Δ t for reducing the revolving speed per unit time of mechanic chamber fan 5b.
Figure 12 is flow chart the step of indicating to find out the slow-speed of revolution time Δ t of the mechanic chamber fan 5b in embodiment 4.
Referring to Fig.1 2, in step S501, the summation R of the revolving speed of compressor 1 is set as 0 by controller 30.
In step S502, in the case where defrosting operation start, processing enters step S506, does not start in defrosting operating
In the case where, processing enters step S503.
In step S503, controller 30 have passed through from obtaining the revolving speed P per unit time of compressor 1 of last time
When the unit time, processing is made to enter step S504.
In step S504, controller 30 receives the expression compressor 1 exported from speed probe 31 per unit time
Revolving speed signal, obtain compressor 1 revolving speed P per unit time.
In step S505, controller 30 on the summation R of the revolving speed of compressor 1 plus it is acquired per unit time
Revolving speed P.
In step S506, in the case where defrosting operating terminates, processing enters step S507.
In step s 507, controller 30 finds out slow-speed of revolution time Δ according to the size of the summation R of the revolving speed of compressor 1
t.For example, it is also possible to which slow-speed of revolution time Δ t is set as the size proportional to R.
In step S508, in the case where the power supply of refrigerator 54 disconnects, processing terminate, connects in the power supply maintenance of refrigerator 54
In the case where logical, processing returns to arrive step S501.
As described above, according to the present embodiment, the output of the rotation sensor based on compressor can speculate due to defrosting
The amount of operating and the draining of generation, and set the slow-speed of revolution time of mechanic chamber fan.
When alternatively, it is also possible to per unit based on the average value of the revolving speed per unit time of compressor to replace compressor
Between revolving speed summation, find out slow-speed of revolution time Δ t.
[embodiment 5]
The structure of the refrigerator of embodiment 5 is identical as the structure of the refrigerator of embodiment 1, but the control of mechanic chamber fan 5b
Method is different, so describing to this point.
Figure 13 is the structure chart of the sectional view of the refrigerator of embodiment 4.
The refrigerator 55 of present embodiment has the temperature sensor 32 of the temperature of detection evaporator as detection or speculates row
The sensor of the amount of water.
When carrying out defrosting operating, due to using the heater being arranged near evaporator 4 37,38 to defrost, so
Temperature slowly rises from the time of energization to heater 37,38.At this point, increasing corresponding with frosting degree if frosting degree
Thermal capacity, therefore the temperature rising of evaporator 4 is slack-off.
Figure 14 is the figure of the relationship for the speed for indicating that the temperature of frosting degree and the evaporator 4 in defrosting operating rises.
As shown in figure 14, if frosting degree is small, when defrosting operating, the speed that the temperature of evaporator rises is fast, if frosting
Amount is big, then when defrosting operating, the speed that the temperature of evaporator rises is fast.
Thereby, it is possible to the speed of the temperature rising by evaporator 4 to detect frosting degree.Moreover, being tied when defrosting operating
Frost amount is more, and the amount of draining is also more, therefore the speed risen by the temperature of detection evaporator 4, is also able to detect draining
Amount.
In the present embodiment, controller 30 finds out the evaporation detected after defrosting operation start by temperature sensor 32
The temperature of device 4 rises time td required for Δ Tdef, using the rate of climb of the temperature as evaporator 4.Controller 30 is based on
Td in during previous defrosting operating finds out the slow-speed of revolution time Δ t during this cooling operating.If td long is (that is, such as
Fruit rate of rise in temperature is small), then frosting degree is more, therefore slow-speed of revolution time Δ t is set to grow by controller 30, if td it is short (that is,
If rate of rise in temperature is big), frosting degree is less, therefore controller 30 slow-speed of revolution time Δ t is set to it is short.
Figure 15 is the flow chart for indicating the step of calculating the slow-speed of revolution time Δ t of the mechanic chamber fan 5b in embodiment 5.
Referring to Fig.1 5, in step s 601, in the case where defrosting operation start, processing enters step S602.
In step S602, controller 30 starts timer.
In step S603, controller 30 receives the signal of the temperature of the expression evaporator 4 exported from temperature sensor 32,
Obtain the temperature of evaporator 4.Controller 30 evaporator 4 temperature from defrost operation start when temperature increase specified value
When Δ Tdef, processing is made to enter step S604.
In step s 604, timer value is set as td the time required to temperature rises by controller 30.
In step s 605, the size of td, finds out slow-speed of revolution time Δ t the time required to controller 30 rises according to temperature.
For example, it is also possible to which slow-speed of revolution time Δ t is set as the size proportional to td.
In step S606, in the case where defrosting operating terminates, processing enters step S607.
In step S607, in the case where the power supply of refrigerator 55 disconnects, processing terminate, connects in the power supply maintenance of refrigerator 55
In the case where logical, processing returns to arrive step S501.
As described above, according to the present embodiment, can be pushed away based on the output of the temperature sensor of the temperature of detection evaporator
The amount for surveying the draining generated due to defrosting operating sets the slow-speed of revolution time of mechanic chamber fan.
(variation)
The present invention is not limited to above-mentioned embodiments, such as further include variation below.
(1) utilization of multiple sensors
In the above-described embodiment, the output based on a kind of sensor finds out the slow-speed of revolution time Δ of mechanic chamber fan, but
The slow-speed of revolution time Δ t of mechanic chamber fan can be found out based on the combination of the output of multiple sensors.
(2) adjustment of the revolving speed of mechanic chamber fan 3b
In the above-described embodiment, in the Δ t from the cooling operation start connected with the end during defrosting operating
In entire period during the cooling operating of the first of time, the revolving speed per unit time of mechanic chamber fan 3b is set as than logical
Normal revolving speed X2 per unit time small revolving speed X1, but not limited to this.
When the revolving speed per unit time of mechanic chamber fan 3b during second cooling operating is set as common per unit
Between revolving speed X2, during the first cooling operating in a part during in, by the turning per unit time of mechanic chamber fan 3b
Speed is set as the revolving speed X1 smaller than common revolving speed X2 per unit time, during the first cooling operating in a part other than
During, the revolving speed per unit time of mechanic chamber fan 3b can also be set as and common revolving speed X2 per unit time
Identical or bigger revolving speed.It preferably, can also be with：With during the first cooling operating and the whole of the second cooling period
In make the revolving speed per unit time of mechanic chamber fan 3b with it is common per unit time revolving speed X2 work needed for energy phase
Than making to make during the first cooling operating and in the second cooling period the mechanic chamber fan 3b required energy that works so small.
In addition, the revolving speed per unit time of at least part of mechanic chamber fan 3b during the first cooling operating is unlimited
The revolving speed per unit time of mechanic chamber fan 3b during fixed value X1, the second cooling operating is not limited to fixed value
X2.These values need not be fixed value, as long as meeting at least part of mechanic chamber fan 3b's during the first cooling operating
Revolving speed per unit time cools down this of the revolving speed per unit time of the mechanic chamber fan 3b during operating less than second
Part.
Stop mechanic chamber fan 3b alternatively, it is also possible at least part during the first cooling operating.
It is believed that embodiment of disclosure in all respects all be illustrate rather than it is restrictive.Model of the invention
Enclosing is not by above-mentioned explanation but is indicated by claims, it is intended that including the meaning that is equal with claims and
Being had altered in range.
Description of symbols
1 compressor, 2 condensers, 2a draining evaporation disk, 2b mechanical chamber condenser, 2c lateral tube, 3 pressure reducers, 4 evaporations
Device, 5 fans, the interior fan of 5a refrigerator, the Machine Room 5b fan, 6 blast regulators, 7a, 7b, 7c storeroom, 8 draining evaporations are used
Disk, 9 drainings, 31 speed probes, 32 temperature sensors, 33 outside air humidity sensors, 34a, 34b, 34c opening and closing sensings
Device, 37 knock-in type heaters, 38 pharoids, 51~55 refrigerators, 81 refrigerating circulatory devices.
Claims (14)
1. a kind of refrigerator, wherein
Have：
Refrigerating circulatory device, the refrigerating circulatory device are configured to, and during cooling operating, refrigerant is according to compressor, first cold
The sequence circulation of condenser, the second condenser, decompressor and evaporator；And
Drain pan, the drain pan store the draining generated by the evaporator,
First condenser is contained in the drain pan,
The refrigerator also has for the fan to second condenser conveying air,
During including the first cooling operating during the cooling operating and during the second cooling operating, the described first cooling operating phase
Between be connected at during defrosting operating after, after being connected at during the described first cooling operating during the second cooling operating,
The rotation speed of the fan at least part during described first cooling operating is less than the described second cooling fortune
The rotation speed of the fan between refunding.
2. refrigerator according to claim 1, wherein
The rotation speed of the fan in described at least part during described first cooling operating is first constant, described
The rotation speed of the fan during second cooling operating is the second constant bigger than the first constant.
3. refrigerator according to claim 1, wherein
Length during described first cooling operating is predetermined fixed length.
4. refrigerator according to claim 1, wherein
The row accumulated in the drain pan after during length and the defrosting operating during described first cooling operating
The amount of water accordingly changes.
5. refrigerator according to claim 1, wherein
It is also equipped with the sensor for detecting the opening and closing of door of the refrigerator,
The output of length and the sensor during described first cooling operating accordingly changes.
6. refrigerator according to claim 1, wherein
It is also equipped with：
Sensor, the sensor detect the opening and closing of the door of the refrigerator；And
Control unit, output of the control unit based on the sensor find out the door in during the cooling operating of last time
Open the opening time of number and the door, and determined based on the opening time of the opening number of the door and the door
Length during fixed described first cooling operating.
7. refrigerator according to claim 1, wherein
It is also equipped with the sensor that the humidity of the air of the outside to the refrigerator is detected,
The output of length and the sensor during described first cooling operating accordingly changes.
8. refrigerator according to claim 1, wherein
It is also equipped with：
Sensor, the sensor detect the humidity of the air of the outside of the refrigerator；And
Control unit, output of the control unit based on the sensor find out the outside in during the cooling operating of last time
The average value of the humidity of air, and determined for the described first cooling operating phase based on the average value of the humidity of the air of the outside
Between length.
9. refrigerator according to claim 1, wherein
It is also equipped with the sensor for detecting the revolving speed per unit time of the compressor,
The output of length and the sensor during described first cooling operating accordingly changes.
10. refrigerator according to claim 1, wherein
It is also equipped with:
Sensor, the sensor detect the revolving speed per unit time of the compressor；And
Control unit, output of the control unit based on the sensor find out the pressure in during the cooling operating of last time
The average value or summation of the revolving speed per unit time of contracting machine, the average value of the revolving speed per unit time based on the compressor
Or summation, determine the length during the described first cooling operating.
11. refrigerator according to claim 1, wherein
It is also equipped with the sensor for detecting the temperature of the evaporator,
The output of length and the sensor during described first cooling operating accordingly changes.
12. refrigerator according to claim 1, wherein
It is also equipped with：
Sensor, the sensor detect the temperature of the evaporator；And
Control unit, output of the control unit based on the sensor, find out last time the defrosting operating during in the steaming
The pace of change of the temperature of device is sent out, and determines that described first cools down the length during operating based on the pace of change of the temperature
Degree.
13. refrigerator according to claim 1, wherein
Heater is also equipped with,
During defrosting operating, the heater work, during the cooling operating, the heater stops.
14. refrigerator according to claim 1, wherein
During defrosting operating, the compressor stops.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/056277 WO2017149664A1 (en) | 2016-03-01 | 2016-03-01 | Refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108885050A true CN108885050A (en) | 2018-11-23 |
| CN108885050B CN108885050B (en) | 2022-02-01 |
Family
ID=59742644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680082180.XA Active CN108885050B (en) | 2016-03-01 | 2016-03-01 | Refrigerator with a door |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6611905B2 (en) |
| CN (1) | CN108885050B (en) |
| TW (1) | TWI683080B (en) |
| WO (1) | WO2017149664A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110906604A (en) * | 2019-12-13 | 2020-03-24 | 广东哈士奇制冷科技股份有限公司 | Refrigerator with defrosting function |
| CN111219936A (en) * | 2018-11-27 | 2020-06-02 | Lg电子株式会社 | Refrigerator and control method thereof |
| WO2020140238A1 (en) * | 2019-01-03 | 2020-07-09 | 合肥美的电冰箱有限公司 | Refrigerator and control method and control device thereof |
| CN111609633A (en) * | 2019-02-26 | 2020-09-01 | 青岛海尔股份有限公司 | Air-cooled refrigerator |
| CN113776268A (en) * | 2021-09-23 | 2021-12-10 | 珠海格力电器股份有限公司 | Refrigerator condensing fan control method and system and refrigerator |
| WO2023273739A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerator |
| WO2023273738A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigeration device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375477B (en) * | 2018-04-13 | 2024-04-19 | 青岛海尔制冷电器有限公司 | Refrigerator with refrigerating chamber at bottom of freezing chamber |
| CN109708394B (en) * | 2018-12-06 | 2020-10-30 | 青岛海尔股份有限公司 | Control method and control system for cooling fan of refrigerator |
| DE102021208479A1 (en) * | 2021-08-04 | 2023-02-09 | BSH Hausgeräte GmbH | Refrigeration device with a condenser fan and method for operating a refrigeration device with a condenser fan |
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| CN111219936A (en) * | 2018-11-27 | 2020-06-02 | Lg电子株式会社 | Refrigerator and control method thereof |
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| WO2023273739A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerator |
| WO2023273738A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigeration device |
| CN113776268A (en) * | 2021-09-23 | 2021-12-10 | 珠海格力电器股份有限公司 | Refrigerator condensing fan control method and system and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201741609A (en) | 2017-12-01 |
| TWI683080B (en) | 2020-01-21 |
| WO2017149664A1 (en) | 2017-09-08 |
| CN108885050B (en) | 2022-02-01 |
| JP6611905B2 (en) | 2019-11-27 |
| JPWO2017149664A1 (en) | 2018-11-22 |
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