CN105650981B - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN105650981B CN105650981B CN201610079264.XA CN201610079264A CN105650981B CN 105650981 B CN105650981 B CN 105650981B CN 201610079264 A CN201610079264 A CN 201610079264A CN 105650981 B CN105650981 B CN 105650981B
- Authority
- CN
- China
- Prior art keywords
- defrosting
- liquid
- case
- evaporator
- storing
- 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.)
- Active
Links
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
- F25D21/06—Removing frost
- F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
-
- 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
-
- 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
- F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
- F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
Abstract
The present invention provides a kind of refrigerators, including storing compartment and the evaporator for providing cold to storing compartment, further include：Device for storing liquid inside accommodates defrosting liquid；The defrosting case of internal chamber is defined, evaporator is arranged in the internal chamber of defrosting case；Input duct is configured at least partly defrosting liquid controllably by device for storing liquid and imports in defrosting case, to defrost to evaporator；And back liquid pipeline, it is configured to after defrosting to evaporator, sends the defrosting liquid in the case that defrosts back to device for storing liquid.Refrigerator storing compartment temperature fluctuation when to evaporator defrost is smaller using immersion type defrost by the present invention, meets the requirement of temperature uniformity in refrigerator compartment.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of refrigerator.
Background technology
Direct cooling refrigerator will appear compartment frost in case in use for some time.Indirect cool refrigerator has well solved ice
The problem of case frosting, but evaporator surface can frosting after a period of use for indirect cool refrigerator (i.e. wind cooling refrigerator).With evaporation
Frosting degree increases on device, and refrigeration for refrigerator efficiency can be caused to decline, influence the stability of refrigerator compartment temperature, and needing periodically will pressure
Contracting machine is shut down to carry out defrost to evaporator.Refrigerator generally use Defrost heater periodically melts steaming in a manner of electrically heated at present
Send out the frosting on device.The major defect of this Defrost mode is, when running defrosting process, the heat of Defrost heater generation
Freezing compartment's internal temperature can be made to increase；After the completion of evaporator defrost, compressor is when task cools down to freezing chamber again,
Its live load becomes larger.And since Defrost heater adds thermogenetic heat not to be efficiently utilized, lead to the power consumption of defrosting
Amount is big, heating defrost efficiency is relatively low, the defrost time is longer, is easy the problems such as initiation fire.
Invention content
It is an object of the present invention to overcome at least one defect of the existing technology, a kind of refrigerator is provided, with drop
Temperature fluctuation of its low storing compartment in evaporator defrost.
A further object of the present invention is to the energy consumptions of refrigerator to be reduced.
In order to realize above-mentioned at least one purpose, the present invention provides a kind of refrigerator, including storing compartment and for institute
The evaporator that storing compartment provides cold is stated, further includes：
Device for storing liquid inside accommodates defrosting liquid；
The defrosting case of internal chamber is defined, the evaporator is arranged in the internal chamber of the defrosting case；
Input duct is configured at least partly defrosting liquid controllably by the device for storing liquid and imports the defrosting case
In, to defrost to the evaporator；And
Back liquid pipeline is configured to after defrosting to the evaporator, and the defrosting liquid in the defrosting case is sent back to
The device for storing liquid.
Optionally, the refrigerator further includes：
Heating device is arranged in the internal chamber of the defrosting case, is configured to controllably open, by the defrosting case
In defrosting liquid heating.
Optionally, the heating device is arranged in the bottom of the internal chamber of the defrosting case.
Optionally, the refrigerator further includes：
Pumping installations is arranged in the input duct, is configured to controllably open, by removing in the device for storing liquid
In white liquid pumping to the defrosting case.
Optionally, the refrigerator further includes：
Liquid-level switch is configured to detect the liquid level in the internal chamber of the defrosting case；And
The pumping installations is configured to shut down when the liquid level of the defrosting case reaches setting liquid level threshold value, to stop
The only pumping defrosting liquid into the defrosting case,
Wherein when the liquid level of the defrosting case reaches setting liquid level threshold value, at least part leaching of the evaporator
Not in the defrosting liquid.
Optionally, the heating device is configured to open when the liquid level of the defrosting case reaches the liquid level threshold value
It opens, to be heated to the defrosting liquid in the defrosting case.
Optionally, the liquid-level switch is connected to through a tracheae and a gas chamber with the internal chamber lower part of the defrosting case,
Described in smoothly transit between gas chamber and the internal chamber connection.
Optionally, the portions of the input duct insert into the inner portion's chamber straight down from the roof of the defrosting case
Lower part, and the liquid outlet of the input duct is in ramped shaped.
Optionally, the upper limb of the liquid outlet of the input duct is recessed to form notch upwards；And
It is formed on pipeline section between the roof in the notch and the defrosting case of the input duct and penetrates through it
The fluting of peripheral wall.
Optionally, the device for storing liquid is arranged adjacent to the compressor of the refrigerator, is dissipated when being switched on using the compressor
The heat of hair heats defrosting liquid therein.
Optionally, the device for storing liquid is arranged below the defrosting case, so that the defrosting liquid energy in the defrosting case
It is enough to flow back to the device for storing liquid via the back liquid pipeline under the effect of gravity.
Optionally, the bottom of the defrosting case is provided with the leakage fluid dram being connected to the back liquid pipeline and is used to open and closes
Close the electronic tapping valve of the leakage fluid dram；And
The electronic tapping valve is configured to open after the evaporator defrosts, removing in the defrosting case is discharged
White liquid.
Optionally, the rubber valve of the electronic tapping valve is in horizontal plane, and in order to defrost, liquid empties.
Optionally, the refrigerator further includes：
Supply air duct is configured to the air delivery cooled down through the evaporator in the defrosting case between the storing
Room；With
Return airway, being configured to will be in the air delivery in the storing compartment to the defrosting case with by the steaming
Send out device cooling.
Optionally, the supply air duct and the return airway both lateral sides in the defrosting case and the inside respectively
Chamber；And
Smoothly transit connection between the supply air duct and the return airway and the internal chamber.
The present invention, when needing to carry out defrost, passes through feed liquor by being arranged evaporator in the defrosting case of relative closure
Pipeline injects defrosting liquid thereto, to be defrosted to evaporator using defrosting liquid, after defrosting to evaporator, and profit
The defrosting liquid in the case that defrosts is sent back to device for storing liquid with back liquid pipeline.Using around heating devices heat in compared with prior art
For air to carry out baking type defrost to evaporator using hot gas, the present invention utilizes immersion type defrost refrigerator when to evaporator defrost
The fluctuation of storing compartment temperature is smaller, meets the requirement of temperature uniformity in refrigerator compartment.
Further, the present invention heats the defrosting liquid in the case that defrosts by using heating device, to utilize temperature
Relatively high defrosting liquid carries out immersion defrosting to evaporator.The present invention by heater strip baking type defrost by being changed to hot water leaching
Bubble defrost improves heating defrost efficiency, it can be achieved that efficiently, quickly and safely removing the frost on evaporator.
Further, when being defrosted to evaporator due to defrosting liquid, the two has larger heat exchange area, compared to existing
Have in technology through heater strip heat ambient air to utilize hot gas to defrost evaporator, Defrost mode of the invention can make to remove
White liquid fully exchanges heat with evaporator, and there is better heat transfer effect can reduce energy to improve heating defrost efficiency
Consumption.
Further, since the present invention is during defrosting, the heat that heating device generates is completely used for the liquid that will defrost
Heating, will not form the higher hot gas of temperature, enter in storing compartment to can avoid the higher hot gas of temperature, cause between storing
The temperature of room increases.I.e. the present invention can avoid causing the fluctuation of refrigerator storing compartment temperature larger due to evaporator defrosting, to both
The requirement for meeting temperature uniformity in refrigerator compartment also reduces the live load of compressor.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic side elevation of refrigerator according to an embodiment of the invention；
Fig. 2 is the backsight local perspective view of the refrigerator in Fig. 1；
Fig. 3 is the schematic partial enlarged view of a-quadrant in Fig. 1；
Fig. 4 is the schematic partial enlarged view of B area in Fig. 2；
Fig. 5 is the schematic partial enlarged view in the regions C in Fig. 2.
Specific implementation mode
Fig. 1 is the schematic side elevation of refrigerator 10 according to an embodiment of the invention；Fig. 2 is the refrigerator 10 in Fig. 1
Backsight local perspective view.Referring to Fig. 1 and Fig. 2, the refrigerator 10 of the embodiment of the present invention may include storing compartment 11 and be used for storing
Compartment 11 provides the evaporator 12 of cold.There are two storing compartments 11 for the tool of refrigerator 10 shown in Fig. 1, in unshowned embodiment
In, refrigerator 10 also can only have there are one storing compartment 11 or have more than two storing compartment 11.Such as people in the art
What member was realized that, in addition to evaporator 12, the refrigerator 10 of the embodiment of the present invention may also include pressure as existing indirect cool refrigerator
Contracting machine 13, condenser (not shown) and restricting element (not shown) etc..Evaporator 12 is via refrigerant line (figure
In be not shown) connect with compressor 13, condenser, restricting element, constitute refrigeration cycle, dropped when compressor 13 starts
Temperature.Evaporator 12 cools down the air for flowing through it, to supply cold air to storing compartment 11.
Particularly, in embodiments of the present invention, refrigerator 10 may also include device for storing liquid 14 and defrosting case 15.Device for storing liquid 14
Inside accommodate defrosting liquid.In embodiments of the present invention, defrosting liquid can be water.In an alternative embodiment, defrost liquid
It can be salting liquid etc..Device for storing liquid 14 can be arranged adjacent to compressor 13, and the heat distributed when to be switched on using compressor 13 will
Defrosting liquid heating in device for storing liquid 14.That is, the relative position between device for storing liquid 14 and compressor 13 can be as possible
It is arranged closer, so that the defrosting liquid in device for storing liquid 14 can utilize the heat of compressor 13 to heat up.I.e. usually without
When defrosting, the defrosting liquid in device for storing liquid 14 can utilize the heat of compressor 13 to heat up, to be removed to evaporator 12
When white, there can be slightly higher temperature (at least above 0 DEG C), the frost on evaporator 12 is melted.
Device for storing liquid 14 may be provided in compressor bin 130, be arranged laterally side by side with compressor 13.In some embodiments
In, device for storing liquid 14 can be the container of top opening, and the liquid level of the interior defrosting liquid accommodated has with its top opening
One determining deviation pollutes refrigerator 10 in order to avoid defrosting liquid overflows.In some embodiments, device for storing liquid 14 or base
This closed container.In the illustrated embodiment, device for storing liquid 14 may include that the first container above compressor 13 is arranged, with
And in the lateral side of compressor 13 and the second container of deeper bigger that is linked together with the first container, to preferably utilize pressure
The heat of contracting machine 13.
Internal chamber 150 is defined in defrosting case 15, evaporator 12 is arranged in the internal chamber 150 of defrosting case 15.It removes
Through-hole can be opened up in white case 15, with allow refrigerant line via through-hole pass in and out internal chamber 150 with by evaporator 12 respectively with
Compressor 13 is connected to restricting element, to which when compressor 13 works, refrigerant can be in compressor 13, condenser, throttling member
Cycle, makes evaporator 12 be in low-temperature condition in part and evaporator 12.
With continued reference to Fig. 1 and Fig. 2, input duct 16 and liquid back pipe are additionally provided between device for storing liquid 14 and defrosting case 15
Road 17.Input duct 16 is configured at least partly defrosting liquid controllably by device for storing liquid 14 and imports in defrosting case 15, with right
Evaporator 12 defrosts.Back liquid pipeline 17 is configured to after defrosting to evaporator 12, by the defrosting liquid in the case 15 that defrosts
Body sends device for storing liquid 14 back to.
The present invention, when needing to carry out defrost, is passed through by being arranged evaporator 12 in the defrosting case 15 of relative closure
Input duct 16 injects defrosting liquid thereto, to be defrosted to evaporator 12 using defrosting liquid, is removed to evaporator 12
After frost, the defrosting liquid in the case 15 that defrosts is sent back to device for storing liquid 14 using back liquid pipeline 17.Profit in compared with prior art
With heating devices heat surrounding air to carry out baking type defrost to evaporator 12 using hot gas, the present invention changes to evaporator 12
10 storing compartment of refrigerator, 11 temperature fluctuations are smaller when white, meet the requirement of 10 indoor temperature uniformity of refrigerator.
Further, the refrigerator 10 of the embodiment of the present invention may also include pumping installations 18, is arranged in input duct 16, matches
It is set to and controllably opens, it will be in the defrosting liquid pumping in device for storing liquid 14 to defrosting case 15.The pumping installations 18 for example may be used
For water pump etc..The setting of device for storing liquid 14 is below defrosting case 15, so that the defrosting liquid in defrosting case 15 can be in gravity
Under via back liquid pipeline 17 flow back to device for storing liquid 14.
In a further embodiment, it is additionally provided with heating device 19 in the internal chamber 150 of defrosting case 15, be configured to
It controllably opens, the defrosting liquid heating in the case 15 that will defrost.To be carried out to evaporator 12 using the defrosting liquid of heating
Defrosting.Heating device 19 may be, for example, electric heating wire etc..Significantly, since the heating device 19 is immersed in defrosting liquid
In defrosting liquid is heated, therefore the water-proofing treatment of heating device 19 should be carried out.
The present invention heats the defrosting liquid in the case 15 that defrosts by using heating device 19, to utilize temperature relatively
High defrosting liquid carries out immersion defrosting to evaporator 12.The present invention by heater strip baking type defrost by being changed to hot-water soak formula
Defrost improves heating defrost efficiency, it can be achieved that efficiently, quickly and safely removing the frost on evaporator 12.Due to the liquid that defrosts
When body defrosts to evaporator 12, the two have larger heat exchange area, compared with prior art in pass through heater strip heating week
Air is enclosed to defrost to evaporator using hot gas, and Defrost mode of the invention can be such that defrosting liquid is fully changed with evaporator 12
There is heat better heat transfer effect can reduce energy consumption to improve heating defrost efficiency.Compared with prior art, due to
For the present invention during defrosting, the heat that heating device 19 generates is completely used for the liquid heating that will defrost, empty to can avoid heat
Gas enters in storing compartment 11, and the temperature of storing compartment 11 is caused to increase.To can avoid leading to ice due to the defrosting of evaporator 12
11 temperature fluctuation of storing compartment of case 10 is larger.Both the requirement of temperature uniformity in the storing compartment 11 of refrigerator 10 had been met, simultaneously
Also reduce the live load of compressor 13.
Heating device 19 may be provided at the bottom of the internal chamber 150 of defrosting case 15.Since the density of cold water is big, therefore will add
Thermal 19 is arranged in the bottom of internal chamber 150, and being conducive to rapidly will defrosting liquid heating.Heating device 19 can will defrost
The temperature of liquid is heated to 10 DEG C or more, preferably 20-30 DEG C.When defrost liquid temperature within that range when, can either
Meet defrosting to require, and make the atmosphere temperature rising in 10 air duct of refrigerator smaller, thus substantially will not be to the storing compartment of refrigerator 10
11 bring harmful effect.
In some embodiments, refrigerator 10 further includes liquid-level switch 151, is configured to the internal chamber of detection defrosting case 15
Liquid level in 150.Pumping installations 18 is configured to shut down when the liquid level for the case 15 that defrosts reaches setting liquid level threshold value,
To stop the pumping defrosting liquid into defrosting case 15.The setting liquid level threshold value can be arranged such that, when defrosting case 15 liquid
When face height reaches setting liquid level threshold value, at least part of evaporator 12 is immersed in defrosting liquid.
In a preferred embodiment, when defrost case 15 liquid level reach setting liquid level threshold value when, evaporator 12 it is complete
Portion is immersed in defrosting liquid, to accelerate the defrosting speed to evaporator 12.
Further, heating device 19 is configured to open when the liquid level for the case 15 that defrosts reaches liquid level threshold value, with
Defrosting liquid in defrosting case 15 is heated.That is, heating device 19 wouldn't be opened during feed liquor, but work as
After being pumped into defrosting liquid enough in defrosting case 15 in device for storing liquid 14, heating device 19 is just started to work.It is substituting
Property embodiment in, can also open heating device 19 during feed liquor, for example, can it is liquid-immersed in the defrosting in the case 15 that defrosts plus
After thermal 19, that is, open heating device 19.
In some embodiments, which can be liquid level sensor, may be, for example, common liquid level in washing machine
Switch.Liquid-level switch 151 is connected to through a tracheae 152 and a gas chamber 153 with 150 lower part of internal chamber of defrosting case 15.Tracheae 152
Increase with the raising of liquid level in defrosting case 15 with the pressure in gas chamber 153, to push 151 interior diaphragm of liquid-level switch to draw high,
When the defrosting liquid in the case 15 that defrosts reaches setting liquid level, control pumping dress is connected in contact conversion in liquid-level switch 151
It sets 18 closings and controls circuit or transmit electric signal, pumping dress to pumping installations 18 and heating device 19 that heating device 19 is opened
Set 18 and heating device 19 close and open respectively after receiving the electric signal.
Particularly, wherein smoothly transit between gas chamber 153 and internal chamber 150 connection, to ensure in the case 15 that will defrost
The discharge of defrosting liquid when, the defrosting liquid feed stream in tracheae 152 and gas chamber 153 is net, prevents the defrosting liquid inside gas chamber 153
Body forms frost due to that cannot be discharged in time and blocks.
As shown in Fig. 2, the portions of input duct 16 insert into the inner portion's chamber straight down from the roof of defrosting case 15
150 lower parts.Fig. 4 is the schematic partial enlarged view of B area in Fig. 2；It illustrates input ducts 16 adjacent to its liquid outlet 161
Portions structure.As shown in figure 4, the liquid outlet 161 of input duct 16 is in ramped shaped.That is, input duct 16
One end of originating from week of liquid outlet 161 tilt upward or extend downwardly to the opposite other end, to be conducive to input duct 16
Interior defrosting liquid flow is net, avoids the defrosting liquid in input duct 16 from forming frost due to that cannot be discharged in time and blocks.
Further, the liquid outlet 161 of input duct 16 upper limb (or upper end) upwards recess to form notch 163, from
And the port of connection external environment can be reserved, in case the defrosting liquid icing of neighbouring liquid outlet 161 blocks input duct 16,
Carrying out next time influences defrosting liquid when defrosting operation enters in defrosting case 15.
In some embodiments, shape on the pipeline section between the roof in notch 163 and the case 15 that defrosts of input duct 16
At the fluting 162 for having its peripheral wall of perforation.In this way, since input duct 16 is by 162 connection external environment of fluting, to when pumping
When device 18 stops pumping, the defrosting liquid in input duct 16 can flow out automatically, freeze in order to avoid staying in input duct 16
And input duct 16 is blocked.The roof setting of the preferably neighbouring defrosting case 15 of fluting 162.
The present invention is by particularly designing input duct 16, in order to avoid remain in the defrosting liquid in input duct 16
It freezes and blocks input duct 16, enter in defrosting case 15 to influence defrosting liquid when carrying out defrosting operation next time.Tool
Body, after pumping installations 18 just stops water pumping, extraneous air can be entered by fluting 162 in input duct 16, to
The defrosting liquid be conducive in input duct 16 is flowed out from liquid outlet 161；The lower edge (or lower end) of ramped shaped liquid outlet 161 is conducive to
The drop of defrosting liquid drips as possible.Fluting 162, notch 163 and overall be to ensure that of ramped shaped liquid outlet 161 are pumping
After device 18 just stops water pumping, extraneous air can enter in input duct 16 the defrosting liquid energy so that in input duct 16
Enough outflows.Even if the lower end of liquid outlet 161 remains a little drop, and it freezes when evaporator 12 freezes, but due to fluting
162 and notch 163 presence, ensure that input duct 16 can introduce defrosting liquid, and defrosting liquid can be led to defrosting
In case 15.
Fig. 3 is the schematic partial enlarged view of a-quadrant in Fig. 1.Referring to Fig. 3, in some embodiments, defrosting case 15
Bottom is provided with the leakage fluid dram 156 being connected to back liquid pipeline 17 and the electronic tapping valve for opening and closing leakage fluid dram 156
157.Electronic tapping valve 157 is configured to open after evaporator 12 defrosts, the defrosting liquid in the case 15 that defrosted with discharge.
In some embodiments, which may be, for example, common drain valve in washing machine.By controlling electricity
The rubber valve 1571 of dynamic tapping valve 157 moves up and down, to leakage fluid dram 156 and the back liquid pipeline 17 of being turned on or off.It is electronic
The rubber valve 1571 of tapping valve 157 is in horizontal plane, and in order to defrost, liquid empties.By by rubber valve 1571 along water
Square to the internal chamber 150 in face of the case 15 that defrosts, discharge defrosting liquid not only it had been convenient for, but also convenient for being frozen in electronic tapping valve 157
When firmly, thawed to electronic tapping valve 157 using the defrosting liquid in defrosting case 15.
In addition, can also interface, leakage fluid dram 156 and the input duct 16 that gas chamber 153 is connected to defrosting case 15 be gone out liquid
Mouthfuls 161 neighbouring settings, in this way, even if gas chamber 153 has freezing phenomena with electronic tapping valve 157, using input duct 16 to except
In white case 15 during fluid injection, the slightly higher defrosting liquid of the temperature flowed out from liquid outlet 161 can also be used and wash away aforementioned interface
With leakage fluid dram 156, change ice or preheating in advance, to eliminate since frost causes liquid-level switch 151 and electronic tapping valve 157 to fail
Possibility.
In some embodiments, refrigerator 10 of the invention may also include supply air duct 121 and return airway 122.Wherein send
Wind air duct 121 is configured to will to defrost the air delivery cooled down through evaporator 12 in case 15 to storing compartment 11；Return airway 122
Be configured to by the air delivery in storing compartment 11 to defrosting case 15 in be cooled down by evaporator 12.
In some embodiments, supply air duct 121 and return airway 122 are respectively in the both lateral sides of defrosting case 15 and inside
Chamber 150 is connected to, to be conducive to be flowed after being fully cooled from the air that return airway 122 enters in defrosting case 15 by evaporator 12
Enter in supply air duct 121.Supply air duct 121 and return airway 122 can connect on the top of internal chamber 150 and internal chamber 150
It is logical, it can be also connected to internal chamber 150 at the middle part of internal chamber 150 or lower part.In some embodiments, supply air duct 121
In pressure fan (not shown) can be set, the air forced conveyance cooled down through evaporator 12 in the case 15 that will defrost to storing
Compartment 11.
Fig. 5 is the schematic partial enlarged view in the regions C in Fig. 2.Referring to Fig. 5, particularly, supply air duct 121 and return air
Smoothly transit connection between air duct 122 and internal chamber 150, i.e. supply air duct 121 and return airway 122 and internal chamber 150
The smooth setting in junction, with ensure after defrosting by defrost case 15 in defrosting liquid discharge defrosting case 15 when, air-supply
Defrosting liquid feed stream in air duct 121 and return airway 122 is net, prevents removing inside supply air duct 121 and return airway 122
White liquid forms frost due to that cannot be discharged in time and blocks.
In embodiments of the present invention, with the various pipelines that are connected to of internal chamber 150 of defrosting case 15, as input duct 16,
Back liquid pipeline 17, gas chamber 153, supply air duct 121, return airway 122 etc. are all provided with the interface of 15 junction of defrosting case and are set to
Round mouth, to prevent from causing frost to block due to liquid droplet extension.
The refrigerator 10 of the embodiment of the present invention can have evaporator room (not show in figure as indirect cool refrigerator in the prior art
Go out), defrosting case 15 may be provided in the evaporator room of refrigerator 10.
It will be understood by those skilled in the art that of the invention so-called " refrigerator 10 " be not limited in general sense have it is cold
Room and freezing chamber and the refrigerator for storing food are hidden, can also be that other have the device of refrigeration and/or freezing function, such as
Refrigerator-freezer, wine cabinet, cold-storage jar etc..
In an alternative embodiment, another pumping installations is may also set up in back liquid pipeline 17, with the case 15 that will controllably defrost
In defrosting liquid pumping to device for storing liquid 14 in.
In an alternative embodiment, also can pumping installations only be set in back liquid pipeline 17.The case 15 that defrosts is arranged in liquid storage
14 lower section of device, so that the defrosting liquid in device for storing liquid 14 can flow into defrosting case via input duct 16 under the effect of gravity
15。
In the following, illustrating the course of work of the refrigerator 10 with structure above referring again to Fig. 1 to Fig. 2.
First, explanation is subjected to storing compartment 11 cooling operation.
Compressor 13 is set to operate, pressure fan operating (if supply air duct 121 or storing compartment 11 have air door, is beaten
Open air door), to be cooled down to storing compartment 11.That is, the air cooled down by evaporator 12 is supplied to storage by supply air duct 121
Object compartment 11.Thereby, it is possible to will be stored at food in storing compartment 11 etc. with proper temperature cooling preservation.
Illustrate the action carried out when defrosting operation referring next to Fig. 1 and Fig. 2.It is carried out continuously cooling down operation, is evaporated
Device 12 can adhere to frost, interfere heat transfer, and can block air flow circuit.Therefore, judge from reduction of evaporator refrigerant temperature etc.
Frosting, or after judging frosting by defrosting timer etc., proceed by defrosting operation is adhered to removing on evaporator 12
Frost.
In the case where defrosting operation, compressor 13 is set to shut down, and pressure fan is made to shut down (if supply air duct
121 or if storing compartment 11 has air door, close air door).Pumping installations 18 is opened, from device for storing liquid 14 into defrosting case 15
Import defrosting liquid.Shut down pumping installations 18 when the liquid level of the defrosting liquid in the case 15 that defrosts reaches default liquid level, stop to
Defrosting liquid is imported in defrosting case 15.Heating device 19 is opened, the defrosting liquid in defrosting case 15 is heated.Heating device
19 opening times shut down heating device 19 after reaching the first setting time, then made defrosting liquid of the evaporator 12 after being heated
One second preset time of middle immersion, thoroughly to remove the frost adhered on evaporator 12.Electronic tapping valve 157 is opened later, is made
Defrosting liquid in defrosting case 15 returns to device for storing liquid 14 via back liquid pipeline 17 under the effect of gravity.In judging defrosting case 15
Defrosting liquid flow it is net after (such as can lead to that flow sensor is arranged in back liquid pipeline 17 is net or logical come the liquid flow that judges to defrost
It is net come the liquid flow that judges to defrost to cross draining timer etc.), close electronic tapping valve 157.Complete the defrosting to evaporator 12.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or derive many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (13)
1. a kind of refrigerator, including storing compartment and the evaporator for providing cold to the storing compartment, which is characterized in that also
Including：
Device for storing liquid inside accommodates defrosting liquid；
The defrosting case of internal chamber is defined, the evaporator is arranged in the internal chamber of the defrosting case；
The portions of input duct, the input duct stretch into the defrosting case straight down from the roof of the defrosting case
The lower part of internal chamber, and be configured to that at least partly defrosting liquid of the device for storing liquid is controllably imported the defrosting case
In internal chamber, to defrost to the evaporator；And
Back liquid pipeline is configured to after defrosting to the evaporator, the defrosting liquid in the defrosting case is sent back to described
Device for storing liquid；
Heating device is arranged in the bottom of the internal chamber of the defrosting case, is configured to controllably open, by the defrosting case
In defrosting liquid heating.
2. refrigerator according to claim 1, which is characterized in that further include：
Pumping installations is arranged in the input duct, is configured to controllably open, by the defrosting liquid in the device for storing liquid
Body is pumped in the defrosting case.
3. refrigerator according to claim 2, which is characterized in that further include：
Liquid-level switch is configured to detect the liquid level in the internal chamber of the defrosting case；And
The pumping installations be configured to when it is described defrosting case liquid level reach setting liquid level threshold value when shut down, with stop to
Pumping defrosting liquid in the defrosting case,
Wherein when the liquid level of the defrosting case reaches setting liquid level threshold value, at least part of the evaporator is immersed in
In the defrosting liquid.
4. refrigerator according to claim 3, which is characterized in that
The heating device is configured to open when the liquid level of the defrosting case reaches the liquid level threshold value, with to described
Defrosting liquid in defrosting case is heated.
5. refrigerator according to claim 3, which is characterized in that
The liquid-level switch be connected to through a tracheae and a gas chamber with the internal chamber lower part of the defrosting case, wherein the gas chamber and
Smoothly transit connection between the internal chamber.
6. refrigerator according to claim 1, which is characterized in that
The liquid outlet of the input duct is in ramped shaped.
7. refrigerator according to claim 6, which is characterized in that
The upper limb of the liquid outlet of the input duct is recessed to form notch upwards；And
It is formed on pipeline section between the roof in the notch and the defrosting case of the input duct and penetrates through its peripheral wall
Fluting.
8. refrigerator according to claim 1, which is characterized in that
The device for storing liquid is arranged adjacent to the compressor of the refrigerator, with the heat that is distributed when being switched on using the compressor by its
In defrosting liquid heating.
9. refrigerator according to claim 8, which is characterized in that
The device for storing liquid is arranged below the defrosting case, so that the defrosting liquid in the defrosting case can be in gravity
Under via the back liquid pipeline flow back to the device for storing liquid.
10. refrigerator according to claim 9, which is characterized in that
The bottom of the defrosting case is provided with the leakage fluid dram being connected to the back liquid pipeline and for opening and closing the drain
The electronic tapping valve of mouth；And
The electronic tapping valve is configured to open after the evaporator defrosts, the defrosting liquid in the defrosting case is discharged
Body.
11. refrigerator according to claim 10, which is characterized in that
The rubber valve of the electronic tapping valve is in horizontal plane, and in order to defrost, liquid empties.
12. refrigerator according to claim 1, which is characterized in that further include：
Supply air duct is configured to the air delivery cooled down through the evaporator in the defrosting case to the storing compartment；
With
Return airway, being configured to will be in the air delivery in the storing compartment to the defrosting case with by the evaporator
It is cooling.
13. refrigerator according to claim 12, which is characterized in that
The supply air duct and the return airway are connected in the both lateral sides of the defrosting case with the internal chamber respectively；And
Smoothly transit connection between the supply air duct and the return airway and the internal chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079264.XA CN105650981B (en) | 2016-02-04 | 2016-02-04 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079264.XA CN105650981B (en) | 2016-02-04 | 2016-02-04 | Refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650981A CN105650981A (en) | 2016-06-08 |
| CN105650981B true CN105650981B (en) | 2018-08-10 |
Family
ID=56489364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610079264.XA Active CN105650981B (en) | 2016-02-04 | 2016-02-04 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105650981B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766579B (en) * | 2016-11-21 | 2019-08-02 | 青岛海尔股份有限公司 | Evaporator for refrigerator impregnates de-icing method |
| CN112033071B (en) * | 2020-08-17 | 2022-03-18 | 珠海格力电器股份有限公司 | Refrigerator and defrosting method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10122725A (en) * | 1996-10-16 | 1998-05-15 | Hoshizaki Electric Co Ltd | Cooling storage warehouse |
| JPH11173743A (en) * | 1997-12-15 | 1999-07-02 | Mitsubishi Electric Corp | Refrigerator and its manufacture |
| CN1474143A (en) * | 2002-08-19 | 2004-02-11 | 乐金电子(天津)电器有限公司 | Defrosting device for refrigerator |
| KR20070062847A (en) * | 2005-12-13 | 2007-06-18 | 주식회사 대우일렉트로닉스 | Defrosting apparatus for refigerator and the method there of |
| CN202562164U (en) * | 2012-03-09 | 2012-11-28 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN103542665A (en) * | 2012-07-11 | 2014-01-29 | 广州南洋理工职业学院 | Refrigerator defrosting system through hot oil |
| KR20140019595A (en) * | 2012-08-06 | 2014-02-17 | 동부대우전자 주식회사 | 3 door type refrigerator |
| CN104329872A (en) * | 2014-10-24 | 2015-02-04 | 海信容声(广东)冰箱有限公司 | Refrigerator evaporator defrosting method |
-
2016
- 2016-02-04 CN CN201610079264.XA patent/CN105650981B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10122725A (en) * | 1996-10-16 | 1998-05-15 | Hoshizaki Electric Co Ltd | Cooling storage warehouse |
| JPH11173743A (en) * | 1997-12-15 | 1999-07-02 | Mitsubishi Electric Corp | Refrigerator and its manufacture |
| CN1474143A (en) * | 2002-08-19 | 2004-02-11 | 乐金电子(天津)电器有限公司 | Defrosting device for refrigerator |
| KR20070062847A (en) * | 2005-12-13 | 2007-06-18 | 주식회사 대우일렉트로닉스 | Defrosting apparatus for refigerator and the method there of |
| CN202562164U (en) * | 2012-03-09 | 2012-11-28 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN103542665A (en) * | 2012-07-11 | 2014-01-29 | 广州南洋理工职业学院 | Refrigerator defrosting system through hot oil |
| KR20140019595A (en) * | 2012-08-06 | 2014-02-17 | 동부대우전자 주식회사 | 3 door type refrigerator |
| CN104329872A (en) * | 2014-10-24 | 2015-02-04 | 海信容声(广东)冰箱有限公司 | Refrigerator evaporator defrosting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105650981A (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104807279B (en) | A kind of fridge-freezer and its defrosting control method | |
| CN107421200B (en) | A kind of wind cooling refrigerator defrosting control method | |
| CN106247742B (en) | A kind of refrigerator freezing fan defrosting device and its control method | |
| CN105466117B (en) | A kind of fridge-freezer | |
| CN106196843A (en) | Wind cooling refrigerator and dehumanization method thereof | |
| US20080092569A1 (en) | Cooling unit with multi-parameter defrost control | |
| JP5178771B2 (en) | Freezer refrigerator | |
| CN105674670B (en) | Refrigerator | |
| CN104329872A (en) | Refrigerator evaporator defrosting method | |
| CN106288612A (en) | A kind of defrost energy-saving control method of wind cooling refrigerator | |
| CN212132998U (en) | Refrigerator with a door | |
| CN107543351B (en) | Refrigerator and control method thereof | |
| JP2010133590A (en) | Refrigerator-freezer | |
| CN105650981B (en) | Refrigerator | |
| CN105135785B (en) | Wind cooling refrigerator and wind cooling refrigerator refrigeration control method | |
| CN204678774U (en) | A kind of fridge-freezer | |
| JP5031045B2 (en) | Freezer refrigerator | |
| CN108775624B (en) | Air Conditioning System | |
| US20160370048A1 (en) | Ice making duct for refrigerator and ice making method of using the same | |
| CN215597871U (en) | Refrigerating and freezing device | |
| CN109780776A (en) | Refrigerator and its control method | |
| CN106839609A (en) | Medical refrigerator-freezer defrosting device | |
| KR20130128991A (en) | Refrigerator | |
| KR102641371B1 (en) | Refrigerator | |
| JP2015143579A (en) | refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |