CN1704705A - Defrosting device of refrigerator evaporator - Google Patents
Defrosting device of refrigerator evaporator Download PDFInfo
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- CN1704705A CN1704705A CN 200410019354 CN200410019354A CN1704705A CN 1704705 A CN1704705 A CN 1704705A CN 200410019354 CN200410019354 CN 200410019354 CN 200410019354 A CN200410019354 A CN 200410019354A CN 1704705 A CN1704705 A CN 1704705A
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- Prior art keywords
- positive
- evaporimeter
- defroster
- rotary fan
- reverse return
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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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0684—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans allowing rotation in reverse direction
Abstract
This invention provides a defrost device of refrigerator evaporator, which comprises cold air pipe providing cold air inlet and outlet and making the cold air cycling, an evaporator setting in the cold air pipe, a fan setting in the cold air pipe which can be rotated right and reverse, and a motor driving the fan. The device has an open and close device in the cold air pipe driving by the fan, when opening the fan to defrost, it makes the high-heat air circulating only in the closed cold air pipe, so the heat from the defrost heater can be totally transported to the evaporator surface, by which can decrease the defrosting time and electric consumption.
Description
Technical field
What the present invention relates to is the defroster of evaporator of refrigerator, particularly be the defroster that can effectively remove the evaporator surface frost.
Background technology
--low temperature of refrigerator inside is kept in the circulation repeatedly of condensing--expansion---evaporation process to say that generally refrigerator is the compression by refrigerant.Refrigerator is absolutely necessary in daily life as the device of refrigeration and frozen food.
The refrigerating circulation system of above-mentioned refrigerator comprises: low temperature/low pressure refrigerant is become the high temp/high pressure refrigerant, the compressor that makes refrigerant heat up/boost; The condensing condenser of refrigerant that utilizes outer gas that compressor is supplied with; From its diameter of refrigerant reduced pressure treatment that condenser is supplied with expansion valve less than other section diameters; Refrigerant through expansion valve evaporates under low-pressure state, and absorbs the evaporimeter of refrigerator inside heat.
Below, structure and the effect to existing refrigerator is described in detail with reference to the accompanying drawings.
Fig. 1 is the vertical profile schematic diagram of existing refrigerator structure; Fig. 2 is the vertical profile schematic diagram of existing defroster process significant points.
As shown in Figure 1, above-mentioned refrigerator mainly comprises: carry out heat exchange with the evaporimeter 200 in the casing 100, the cold air of inflow is kept its internal temperature and is about-18 ℃ refrigerating chamber 110; Making the cold air that flow in the refrigerating chamber 110 keep its internal temperature is refrigerating chamber about 0～7 ℃; Downside is provided with Machine Room 120 at the rear of refrigerating chamber 110.
The rear of above-mentioned refrigerating chamber 110 is provided with cold duct 500.High temperature cold air after refrigerating chamber and refrigerating chamber circulation flow into cold duct 500 again, and carries out heat exchange in cold duct 500.Be provided with in the cold duct 500: evaporimeter 200; Blowing fan 400; Drive motor 410 members such as grade of blowing fan 400.400 of blowing fans pass through the cold air forced circulation of evaporimeter 200 back low temperatureization to refrigerating chamber 110.
Be formed with cold gas exhausting outlet 510 and cold air sucting inlet 520 separately in the upper and lower of above-mentioned cold duct 500.
Said machine casing 100 is by being divided into refrigerating chamber 110 and refrigerating chamber (shown in the figure) about dividing plate.Be formed with some intercommunicating pores on the dividing plate, thereby make the cold air of refrigerating chamber and refrigerating chamber can free convection.In more detail, the cold air of refrigerating chamber can supply to refrigerating chamber, and the cold air of refrigerating chamber can flow in the cold duct 500 by refrigerating chamber.
In above-mentioned Machine Room 120, be provided with compressor and the condenser that together constitutes refrigerating circulation system with evaporimeter 200.In Machine Room 120, also be provided with the heat release fan.The heat release fan plays the forced air supply effect, can make the heat of 120 inside, Machine Room, and the heat that particularly produces in condenser dissipates, thus cooling 120 inside, Machine Room.
The refrigerator that constitutes by above-mentioned parts, putting into food in refrigerating chamber 110 and refrigerating chamber needs when freezing and fresh-keeping, switch on to refrigerator, be arranged at compressor in the Machine Room and receive the control signal of control device (not shown) and start, along with operating in of refrigerating circulation system carried out heat exchange in the evaporimeter 200.
By the cold air that evaporimeter 200 heat-absorbing actions are lowered the temperature, arrange to refrigerating chamber 110 with blowing fan 400.
The above-mentioned a part of cold air that is discharged in the refrigerating chamber flow in the refrigerating chamber by the cold air intercommunicating pore.
Above-mentioned cold air temperature after refrigerating chamber 110 and refrigerating chamber circulation rises, and flow into again in the evaporimeter 200 by cold air sucting inlet 520, thereby constitutes cooling air circulation system.
In the running of refrigerator, because there is moisture in refrigerator inside, therefore can be in evaporimeter 200 surperficial frostings.
Because evaporimeter 200 surfaces maintain low-temperature condition all the time, and the temperature around it is in higher state relatively, generates moisture owing to temperature difference at evaporator surface.Moisture in the moisture can be frozen in evaporimeter 200 surfaces, thereby makes evaporimeter 200 surfaces form frost.
The existence of above-mentioned frost can hinder flowing of cold air, reduces cooling effectiveness.Therefore, a period of time of being separated by will defrost.
For this reason, the periphery at evaporimeter 200 is provided with some Defrost heaters 300.
Above-mentioned Defrost heater 300 mainly comprises: contact with evaporimeter 200, and transmit the contact Defrost heater (not shown) of heats with hot conductive form toward evaporimeter 200 surfaces; Separated by a distance with evaporimeter 200, and with the contactless Defrost heater 300 of heat radiation form toward evaporimeter 200 surface transmission heats.Can use a kind of or both among both to use according to the concrete formation of refrigerator.
Therefore, the planted agent connects power supply for above-mentioned Defrost heater 300 at the appointed time, removes the frost that is attached to evaporator surface by the heat that Defrost heater 300 produces.The water that generates in the defrost process is discharged to the refrigerator outside by dust-collecting bucket and collector pipe, perhaps evaporation voluntarily.
But in above-mentioned Defrost operation process, the heat that Defrost heater 300 produces can make the temperature of refrigerator inside raise simultaneously.Therefore, the initial stage of refrigerating circulation system operation after stopping the defrosting program, can aggravate the freezing load of refrigerator, thereby increase the load of evaporimeter 200, finally can reduce the cooling effectiveness of refrigerator.
Above-mentioned Defrost heater 300 is and the electro-heat equipment of power connection, therefore can has potential safety hazard.That is,, the temperature of Defrost heater 300 need be risen to necessary numerical value in order to defrost.At this moment, might occur, cause temperature to rise to temperature required above situation because power-on time is long.This too high temperature has hidden danger.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of in the Defrost operation process, can make the heat that from Defrost heater, produces be transmitted to evaporator surface all, fast, shorten the required time of defrost process, the defroster of the evaporator of refrigerator of power saving.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of defroster of evaporator of refrigerator includes: the cold duct that the inflow and the discharge of cold air is provided and the cold air in the refrigerator is circulated; Be arranged on the evaporimeter in the cold duct, in cold duct, also be provided with positive and reverse return rotary fan that can positive and negative rotation and drive the motor of positive and reverse return rotary fan.
The invention has the beneficial effects as follows: the present invention is provided with in the cold duct space that evaporimeter is housed by the positive and reverse return rotary fan and drives the opening and closing device that above-mentioned space opens and closes, when when carrying out defrost process startup positive and reverse return rotary fan, can make high temperature air only in the inner forced circulation of the cold duct of sealing, thereby make the heat that from Defrost heater, produces all be transmitted to evaporator surface apace, can shorten the required time of defrost process, save electric weight.
Carry out in the process in defrosting,, can reduce the power consumption of Defrost heater particularly because of heat that has utilized the motor generation that drives the positive and reverse return rotary fan simultaneously and the heat that Defrost heater produces.Therefore, improved the safety coefficient that the possible amino serial refrigerant refrigerator of blast is at high temperature arranged greatly.
Description of drawings
Fig. 1 is the vertical profile schematic diagram of existing refrigerator structure;
Fig. 2 is the vertical profile schematic diagram of existing defroster process significant points;
Fig. 3 is the vertical profile schematic diagram of the refrigerator structure of the embodiment of the invention;
Fig. 4 is the vertical profile schematic diagram of open mode of the opening and closing device of the embodiment of the invention;
Fig. 5 is the vertical profile schematic diagram of closed condition of the opening and closing device of the embodiment of the invention;
Fig. 6 is the vertical profile schematic diagram that another embodiment of the present invention positive and reverse return rotary fan and Defrost heater constitute one.
* * is to the symbol description * * * of major part in the drawing
100: casing (case) 110: refrigerating chamber
120: Machine Room 200: evaporimeter
300: Defrost heater 400: blowing fan
500: cold duct 510: outlet
520: suction inlet 600: the positive and reverse return rotary fan
710: the 1 guide waies of 700: the 1 switching portions
Opened and closed mouthful 730: the 1 rotor plates in 720: the 1
810: the 2 guide waies of 800: the 2 switching portions
Opened and closed mouthful 830: the 2 rotor plates in 820: the 2
The specific embodiment
The invention provides a kind of defroster of evaporator of refrigerator, include: the cold duct 500 that the inflow and the discharge of cold air is provided and the cold air in the refrigerator is circulated; Be arranged on the evaporimeter 200 in the cold duct 500, in cold duct 500, also be provided with positive and reverse return rotary fan 600 that can positive and negative rotation and drive the motor 610 of positive and reverse return rotary fan.
The cold duct 500 that includes evaporimeter 200 and positive and reverse return rotary fan 600 is arranged in the opening and closing device to be opened/closed.
Described opening and closing device includes: the 1st switching portion 700 that the cold air that evaporimeter is discharged has selection to cut off.
Described the 1st switching portion 700 comprises: the 1st guide way 710 that is formed with some the 1st switching mouths 720; One side and the 1st guide way 710 hinged and can rotate decide some the 1st rotor plates 730 of angle.
Described the 1st rotor plate 730 is arranged on the 1st guide way 710 upper surfaces, with the surface of the 1st guide way 710 upper surface opposition sides be in abutting connection with the space that positive and reverse return rotary fan and evaporimeter are housed, the 1st rotor plate 730 can be done this space counter-rotation relatively.
The size of described the 1st rotor plate 730 can cover the 1st switching mouth 720 that forms on the 1st guide way 710.
Described the 1st rotor plate 730 is to be made of rotating thin plate under positive and reverse return rotary fan 600 rotation wind drive.
When positive and reverse return rotary fan 600 positive directions were rotated, the 1st rotor plate 730 rotates toward upside by the center with ground was decided angle.
Described opening and closing device also includes: the 2nd switching portion 800 that the cold air that evaporimeter 200 is discharged has selection to cut off.
Described the 2nd switching portion includes: the 2nd guide way 810 that is formed with some the 2nd switching mouths 820; One side and the 2nd guide way 810 hinged and can rotate decide some the 2nd rotor plates 830 of angle.
Described the 2nd rotor plate 830 is arranged on the 2nd guide way 810 upper surfaces, with the 2nd guide way 810 upper surface abut be the space that positive and reverse return rotary fan and evaporimeter are housed, the 2nd rotor plate 830 can be done toward this side direction in space and rotate.
The size of described the 2nd rotor plate 830 can cover the 2nd switching mouth 820 that forms on the 2nd guide way 810.
Described the 2nd rotor plate 830 is to be made of rotating thin plate under positive and reverse return rotary fan 600 rotation wind drive.
Described when positive and reverse return rotary fan 600 positive directions are rotated, the 2nd rotor plate 830 rotates toward upside by the center with ground is decided angle.
Described positive and reverse return rotary fan 600 is positioned at the upside of evaporimeter 200.
Described positive and reverse return rotary fan 600 is positioned at the downside of evaporimeter 200.
Also include: the Defrost heater 300 that in cold duct 500, also is provided with heat that generation is decided.
Described Defrost heater 300 is arranged between positive and reverse return rotary fan 600 and the evaporimeter 200.
In cold duct 500, also be provided with the Defrost heater 300 of heat that generation is decided.
Described Defrost heater 300 is arranged at the upside of evaporimeter 200.
Described Defrost heater 300 is arranged at the downside of evaporimeter 200.
Below in conjunction with accompanying drawing embodiments of the invention are described in detail.
Fig. 3 is the vertical profile schematic diagram of the refrigerator structure of the embodiment of the invention; Fig. 4 is the vertical profile schematic diagram of open mode of the opening and closing device of the embodiment of the invention; Fig. 5 is the vertical profile schematic diagram of closed condition of the opening and closing device of the embodiment of the invention; Fig. 6 is the vertical profile schematic diagram that another embodiment of the present invention positive and reverse return rotary fan and Defrost heater constitute one.
Give identical sequence number with the prior art same section in the present invention.
As shown in Figure 3, the heat radiation structure of evaporator for refrigerator includes: cold air is flowed into and discharge, and the cold duct 500 that the cold air in the refrigerator is constantly circulated; Be arranged on the evaporimeter 200 in the cold duct 500; Be arranged in the cold duct 500 positive and reverse return rotary fan 600 that can positive and negative rotation; Drive the motor 610 of positive and reverse return rotary fan.
In the inner space of above-mentioned cold duct 500, that is, the space of evaporimeter 200 and positive and reverse return rotary fan 600 is housed, other is provided with opening and closing device.
Above-mentioned opening and closing device includes the 1st switching portion 700.The 1st switching portion 700 selectively cuts off the flow path of being discharged cold air by evaporimeter 200.
Above-mentioned the 1st switching portion 700 comprises: the 1st guide way 710 with some the 1st switching mouths 720; One side is connected with the 1st guide way 710 hinges, and can rotate decide some the 1st rotor plates 730 of angle.
Above-mentioned the 1st rotor plate 730 is arranged on the upper surface of the 1st guide way 710.That is, in two surfaces up and down of the 1st guide way 710.In other words, the 1st rotor plate 730 is arranged on the opposite sides with adjacent of the space of positive and reverse return rotary fan 600 and evaporimeter 200.
The size of above-mentioned the 1st rotor plate 730 is: can cover the 1st switching mouth 720 that forms on the 1st guide way 710.
The purpose of the 1st rotor plate 730 being arranged to institute's sizing is: in order to limit the too rotation of the 1st rotor plate 730.That is, when the 600 contrary rotations of positive and reverse return rotary fan, the free end of the 1st rotor plate 730 will be overlapped on the hinged end of another adjacent the 1st rotor plate, turn in the space of positive and reverse return rotary fan 600 and evaporimeter 200 thereby can limit the 1st rotor plate 730.
The rotation of wind drive the 1st rotor plate 730 that produces when making positive and reverse return rotary fan 600 rotation, the 1st rotor plate 730 should be made with thin plate.
Said structure does not need any drive unit that the 1st rotor plate 730 is rotated.The wind-force that 730 of the 1st rotor plates produce during by 600 rotations of positive and reverse return rotary fan is finished the 1st and is opened and closed mouthfuls 720 switching.
When positive and reverse return rotary fan 600 positive directions were rotated, the 1st rotor plate 730 was a benchmark with ground, to upside rotate decide angle.
Below the 1st switching portion 700,, be provided with the 2nd switching portion 800 with its corresponding section, position.The 2nd switching portion 800 selectively cuts off the flow path to evaporimeter 200 mobile cold air.
Above-mentioned the 2nd switching portion 800 comprises: the 2nd guide way 810 that is formed with some the 2nd switching mouths 820; One side is connected with the 2nd guide way 810 hinges, and can rotate decide some the 2nd rotor plates 830 of angle.
Above-mentioned the 2nd rotor plate 830 is arranged on the upper surface of the 2nd guide way 810.That is, in two surfaces up and down of the 2nd guide way 810.In other words, the 2nd rotor plate 830 is arranged on the opposite sides with the space adjacent surface of positive and reverse return rotary fan 600 and evaporimeter 200.
The size of above-mentioned the 2nd rotor plate 830 is: can cover the 2nd switching mouth 820 that forms on the 2nd guide way 810.
The purpose of the 2nd rotor plate 830 being arranged to institute's sizing is: in order to limit the too rotation of the 2nd rotor plate 830.That is, when the 600 contrary rotations of positive and reverse return rotary fan, the free end of the 2nd rotor plate 830 will be overlapped on the hinged end of another adjacent the 2nd rotor plate, thereby can limit the outside, space that the 2nd rotor plate 830 turns to positive and reverse return rotary fan 600 and evaporimeter 200.
The rotation of wind drive the 2nd rotor plate 830 that produces when making positive and reverse return rotary fan 600 rotation, the 2nd rotor plate 830 should be made with thin plate.
Said structure does not need any drive unit that the 2nd rotor plate 830 is rotated.The wind-force that 830 of the 2nd rotor plates produce during by 600 rotations of positive and reverse return rotary fan is finished the 2nd and is opened and closed mouthfuls 820 switching.
When positive and reverse return rotary fan 600 positive directions were rotated, the 2nd rotor plate 830 was a benchmark with ground, to upside rotate decide angle.
The present invention is that the heat that produces in motor 610 when utilizing motor 610 runnings is removed the frost that is attached to evaporimeter 200 surfaces.
In addition, the position of positive and reverse return rotary fan 600 in the embodiment of the invention is arranged on the top of evaporimeter 200.
Certainly, the position of positive and reverse return rotary fan 600 can also be arranged on the bottom of evaporimeter 200.
In addition, the invention still further relates to: be arranged in the cold duct 500, and can produce decide the Defrost heater 300 of heat.
In the heat-releasing device of above-mentioned evaporator for refrigerator,, following multiple different embodiment is arranged according to the different positions that are provided with of positive and reverse return rotary fan 600 and Defrost heater 300.
Embodiment as: the upside at evaporimeter 200 is provided with positive and reverse return rotary fan 600, at the upside of positive and reverse return rotary fan 600 Defrost heater 300 is set.
Embodiment as: the upside at evaporimeter 200 is provided with Defrost heater 300, at the upside of Defrost heater 300 positive and reverse return rotary fan 600 is set.
Embodiment as: the downside at evaporimeter 200 is provided with positive and reverse return rotary fan 600, at the downside of positive and reverse return rotary fan 600 Defrost heater 300 is set.
Embodiment as: the downside at evaporimeter 200 is provided with Defrost heater 300, at the downside of Defrost heater 300 positive and reverse return rotary fan 600 is set.
Embodiment as: evaporimeter 200 is arranged between Defrost heater 300 and the positive and reverse return rotary fan 600, and wherein Defrost heater 300 is arranged at the upside of evaporimeter 200, and positive and reverse return rotary fan 600 is arranged at the downside of evaporimeter 200.
Embodiment as: evaporimeter 200 is arranged between Defrost heater 300 and the above-mentioned positive and reverse return rotary fan 600, and wherein positive and reverse return rotary fan 600 is arranged at the upside of evaporimeter 200, and Defrost heater 300 is arranged at the downside of evaporimeter 200.
In addition, as shown in Figure 6, Defrost heater 300 and positive and reverse return rotary fan 600 form as one, and are arranged at the upside or the downside of evaporimeter 200.This formation is also as a kind of embodiment.
As Fig. 4 and shown in Figure 5, take the upside of evaporimeter 200 that positive and reverse return rotary fan 600 is set, the upside of positive and reverse return rotary fan 600 is provided with the version of Defrost heater 300, in the middle of various embodiment of the present invention, can access better defrosting effect, the heat that produces in the time of can also effectively utilizing motor 610 to drive.
Running to the embodiment of the invention is described in detail below.
When refrigerator is normally cooling off when operation, positive and reverse return rotary fan 600 is rotated in the forward, and makes the cold air that circulation back temperature uprises relatively in the refrigerator flow into cold duct 500 inside.
Because the wind-force that the positive and reverse return rotary fan 600 that is rotated in the forward is produced, make the 1st switching portion 700 of opening and closing device and the 2nd switching portion 800 be decided angle by benchmark toward upside is open with ground.
In other words, under the situation of positive and reverse return rotary fan 600 positive directions rotation, when the 1st rotor plate 730 of the 1st switching portion 700 turned an angle toward upside, the also past upside of the 2nd rotor plate 830 of the 2nd switching portion 800 turned an angle, thereby open the 1st switching mouth the 720 and the 2nd opens and closes mouth 820.
At this moment, the air that the temperature of refrigerator inside is high relatively will be by being flow in the cold duct 500 by the 2nd open switching portion 820.The air that flows into the relatively-high temperature degree in the process of evaporimeter 200 of flowing through and evaporimeter 200 carry out heat exchange, become cold air (air that temperature is low relatively) again.
Through evaporimeter 200 and the cold air that temperature descends, will be by circulating in refrigerator inside again after open the 1st switching portion 720 discharges.
When above-mentioned cyclic process was carried out repeatedly, evaporimeter 200 surfaces were to keep low-temperature condition all the time, but were in the high relatively state of temperature from the refrigerator inside leaked-in air.Therefore, because its temperature difference will generate moisture on the surface of evaporimeter 200.Moisture under evaporimeter 200 surface low-temperature effects, the frosting attached to evaporimeter 200 surfaces.
At this moment, in order to remove the frost that evaporimeter 200 surfaces generate, need to start the defrosting program.
At first, make the 600 contrary direction rotations of positive and reverse return rotary fan.
Because the contrary direction rotation of positive and reverse return rotary fan 600 makes the opening and closing device of opening when positive and reverse return rotary fan 600 positive directions are rotated, that is, the 1st switching portion 700 and the 2nd switching portion 800 are closed.
In other words, under the situation of positive and reverse return rotary fan 600 contrary direction rotations, the 1st rotor plate 730 past downsides rotations of the 1st switching portion 700, the also past downside of the 2nd rotor plate 830 of the 2nd switching portion 800 rotates, thereby closes the 1st switching mouth 720 and above-mentioned the 2nd switching mouth 820.
Then, drive the Defrost heater 300 that is arranged on cold duct 500 inside.
During Defrost heater 300 operation, because the heat that Defrost heater 300 produces, the air of cold duct 500 inside will be heated and become high temperature air.The air that becomes high temperature is in the counter-rotating of positive and reverse return rotary fan 600 and the cold duct 500 inner forced circulation that are closed.
That is,, be heated into the air of high temperature, forced convertion by the air-supply effect of positive and reverse return rotary fan 600 by Defrost heater 300 in cold duct 500 inside of sealing.Therefore, because the forced convertion of high temperature air, the frost that is attached to evaporimeter 200 surfaces will be removed very soon.
Because defrosting is by utilizing forced circulation high temperature air length of run in the cold duct 500 of sealing, thereby has shortened the required time of defrost process than prior art, and the rising of reduction internal temperature of refrigerator that can minimum degree.
When carrying out defrost process, because of heat and the Defrost heater 300 that has utilized the motor 610 that drives positive and reverse return rotary fan 600 to produce simultaneously, thereby shortened the required time of defrost process than prior art, improved defrosting efficiency.
In addition, after the frost on evaporimeter 200 surfaces is removed, stop the operation of Defrost heater 300, and positive direction driving positive and reverse return rotary fan 600, open opening and closing device, thus refrigerator is reruned in normal cooling running status.
In sum, in the category of basic fundamental thought of the present invention, possess the intellectual of relevant knowledge of the present invention, can carry out various changes the present invention.The present invention is to serve as according to making an explanation with the patent claim that provides.
Claims (22)
1. the defroster of an evaporator of refrigerator includes: the cold duct (500) that the inflow and the discharge of cold air is provided and the cold air in the refrigerator is circulated; Be arranged on the evaporimeter (200) in the cold duct (500), it is characterized in that in cold duct (500), also being provided with can positive and negative rotation positive and reverse return rotary fan (600) and the motor (610) of driving positive and reverse return rotary fan.
2. according to the defroster described in the claim 1, it is characterized in that the cold duct (500) that includes evaporimeter (200) and positive and reverse return rotary fan (600) is arranged in the opening and closing device to be opened/closed.
3. according to the defroster described in the claim 2, it is characterized in that described opening and closing device comprises: the 1st switching portion (700) that the cold air that evaporimeter is discharged has selection to cut off.
4. according to the defroster described in the claim 3, it is characterized in that described the 1st switching portion (700) comprising: the 1st guide way (710) that is formed with some the 1st switchings mouthful (720); One side and the 1st guide way (710) hinged and can rotate decide some the 1st rotor plates (730) of angle.
5. according to the defroster described in the claim 4, it is characterized in that described the 1st rotor plate (730) is arranged on the 1st guide way (710) upper surface, with the surface of the 1st guide way (710) upper surface opposition side be in abutting connection with the space that positive and reverse return rotary fan and evaporimeter are housed, the 1st rotor plate (730) can be done this space counter-rotation relatively.
6. according to the defroster described in the claim 5, it is characterized in that the size of described the 1st rotor plate (730) can cover the 1st switching mouthful (720) that the 1st guide way (710) is gone up formation.
7. according to the defroster described in the claim 4, it is characterized in that described the 1st rotor plate (730) is to be made of rotating thin plate under positive and reverse return rotary fan (600) rotation wind drive.
8. according to the defroster described in the claim 4, it is characterized in that when positive and reverse return rotary fan (600) positive direction is rotated that the 1st rotor plate (730) is decided angle by the center toward the upside rotation with ground.
9. according to the defroster described in the claim 3, it is characterized in that described opening and closing device also includes: the 2nd switching portion (800) that the cold air that evaporimeter (200) is discharged has selection to cut off.
10. according to the defroster described in the claim 9, it is characterized in that described the 2nd switching portion includes: the 2nd guide way (810) that is formed with some the 2nd switchings mouthful (820); One side and the 2nd guide way (810) hinged and can rotate decide some the 2nd rotor plates (830) of angle.
11. according to the defroster described in the claim 10, it is characterized in that described the 2nd rotor plate (830) is arranged on the 2nd guide way (810) upper surface, with the 2nd guide way (810) upper surface abut be the space that positive and reverse return rotary fan and evaporimeter are housed, the 2nd rotor plate (830) can be done toward this side direction in space and rotate.
12., it is characterized in that the size of described the 2nd rotor plate (830) can cover the 2nd switching mouthful (820) that the 2nd guide way (810) is gone up formation according to the defroster described in the claim 11.
13., it is characterized in that described the 2nd rotor plate (830) is to be made of rotating thin plate under positive and reverse return rotary fan (600) rotation wind drive according to the defroster described in the claim 10.
14. according to the defroster described in the claim 10, it is characterized in that describedly when positive and reverse return rotary fan (600) positive direction is rotated, the 2nd rotor plate (830) rotates toward upside by the center with ground is decided angle.
15., it is characterized in that described positive and reverse return rotary fan (600) is positioned at the upside of evaporimeter (200) according to the defroster described in the claim 1.
16., it is characterized in that described positive and reverse return rotary fan (600) is positioned at the downside of evaporimeter (200) according to the defroster described in the claim 1.
17., it is characterized in that also including: the Defrost heater (300) that in cold duct (500), also is provided with heat that generation is decided according to the defroster described in the claim 15.
18., it is characterized in that described Defrost heater (300) is arranged between positive and reverse return rotary fan (600) and the evaporimeter (200) according to the defroster described in the claim 17.
19., it is characterized in that in cold duct (500), also being provided with the Defrost heater (300) of heat that generation is decided according to the defroster described in the claim 1.
20., it is characterized in that described Defrost heater (300) is arranged at the upside of evaporimeter (200) according to the defroster described in the claim 19.
21., it is characterized in that described Defrost heater (300) is arranged at the downside of evaporimeter (200) according to the defroster described in the claim 19.
22., it is characterized in that described Defrost heater (300) and positive and reverse return rotary fan (600) form as one according to the defroster described in the claim 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100193547A CN100458324C (en) | 2004-05-27 | 2004-05-27 | Defrosting device of refrigerator evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100193547A CN100458324C (en) | 2004-05-27 | 2004-05-27 | Defrosting device of refrigerator evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1704705A true CN1704705A (en) | 2005-12-07 |
| CN100458324C CN100458324C (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100193547A Expired - Fee Related CN100458324C (en) | 2004-05-27 | 2004-05-27 | Defrosting device of refrigerator evaporator |
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| Country | Link |
|---|---|
| CN (1) | CN100458324C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032745A (en) * | 2009-09-28 | 2011-04-27 | 泰州乐金电子冷机有限公司 | Device for preventing frosting of evaporator for refrigerator |
| CN103975207A (en) * | 2011-12-06 | 2014-08-06 | 松下电器产业株式会社 | Refrigerator |
| CN104279812A (en) * | 2013-07-05 | 2015-01-14 | 海尔集团公司 | Refrigeration device and defrosting method thereof |
| CN105276895A (en) * | 2014-07-22 | 2016-01-27 | 苏州三星电子有限公司 | Air-cooling refrigerator |
| CN106871528A (en) * | 2017-01-09 | 2017-06-20 | 青岛海尔股份有限公司 | Refrigerator |
| CN107192203A (en) * | 2017-06-02 | 2017-09-22 | 青岛海尔特种电冰箱有限公司 | It is a kind of for air cooling type refrigerator except the method and apparatus of condensed water |
| CN108759228A (en) * | 2018-06-05 | 2018-11-06 | 海信（山东）冰箱有限公司 | A kind of wind cooling refrigerator |
| CN108870840A (en) * | 2018-03-28 | 2018-11-23 | 安徽康佳同创电器有限公司 | A kind of freezing fan housing and refrigerator |
| CN109059393A (en) * | 2014-02-28 | 2018-12-21 | 株式会社电装 | Temperature adjustment stowage arrangement |
| CN110671884A (en) * | 2019-09-29 | 2020-01-10 | 珠海格力电器股份有限公司 | Air supply control method for defrosting of air-cooled refrigerator and air-cooled refrigerator |
| CN111397302A (en) * | 2020-03-25 | 2020-07-10 | 海信（山东）冰箱有限公司 | Wine cabinet and defrosting method thereof |
| CN112696872A (en) * | 2020-12-31 | 2021-04-23 | 格力电器（武汉）有限公司 | Defrosting control method and device for air-cooled refrigerator and air-cooled refrigerator |
| CN114485040A (en) * | 2022-02-21 | 2022-05-13 | 珠海格力电器股份有限公司 | Control device and method for refrigeration appliance and refrigeration appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097675A (en) * | 1991-05-16 | 1992-03-24 | Amana Refrigeration Inc. | Air flow control for multi-port refrigerator duct |
| JPH0571830A (en) * | 1991-09-17 | 1993-03-23 | Mitsubishi Electric Corp | Freezing device |
| CN1177717A (en) * | 1996-09-25 | 1998-04-01 | 大宇电子株式会社 | Refrigerator with device controlling intensity of cooling by a fan |
| KR19980054641A (en) * | 1996-12-27 | 1998-09-25 | 배순훈 | How to control fan motor of refrigerator |
| KR19990005704A (en) * | 1997-06-30 | 1999-01-25 | 배순훈 | Defroster of the refrigerator |
| JPH11173733A (en) * | 1997-12-12 | 1999-07-02 | Toshiba Corp | Refrigerator |
| JP2002364972A (en) * | 2001-06-05 | 2002-12-18 | Fujitsu General Ltd | Refrigerator |
-
2004
- 2004-05-27 CN CNB2004100193547A patent/CN100458324C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032745A (en) * | 2009-09-28 | 2011-04-27 | 泰州乐金电子冷机有限公司 | Device for preventing frosting of evaporator for refrigerator |
| CN103975207A (en) * | 2011-12-06 | 2014-08-06 | 松下电器产业株式会社 | Refrigerator |
| CN104279812A (en) * | 2013-07-05 | 2015-01-14 | 海尔集团公司 | Refrigeration device and defrosting method thereof |
| CN109059393A (en) * | 2014-02-28 | 2018-12-21 | 株式会社电装 | Temperature adjustment stowage arrangement |
| CN105276895A (en) * | 2014-07-22 | 2016-01-27 | 苏州三星电子有限公司 | Air-cooling refrigerator |
| CN105276895B (en) * | 2014-07-22 | 2017-12-01 | 苏州三星电子有限公司 | A kind of wind cooling refrigerator |
| CN106871528A (en) * | 2017-01-09 | 2017-06-20 | 青岛海尔股份有限公司 | Refrigerator |
| CN107192203A (en) * | 2017-06-02 | 2017-09-22 | 青岛海尔特种电冰箱有限公司 | It is a kind of for air cooling type refrigerator except the method and apparatus of condensed water |
| CN107192203B (en) * | 2017-06-02 | 2019-11-26 | 青岛海尔特种电冰箱有限公司 | It is a kind of for air cooling type refrigerator except the method and apparatus of condensed water |
| CN108870840A (en) * | 2018-03-28 | 2018-11-23 | 安徽康佳同创电器有限公司 | A kind of freezing fan housing and refrigerator |
| CN108759228A (en) * | 2018-06-05 | 2018-11-06 | 海信（山东）冰箱有限公司 | A kind of wind cooling refrigerator |
| CN110671884A (en) * | 2019-09-29 | 2020-01-10 | 珠海格力电器股份有限公司 | Air supply control method for defrosting of air-cooled refrigerator and air-cooled refrigerator |
| CN111397302A (en) * | 2020-03-25 | 2020-07-10 | 海信（山东）冰箱有限公司 | Wine cabinet and defrosting method thereof |
| CN112696872A (en) * | 2020-12-31 | 2021-04-23 | 格力电器（武汉）有限公司 | Defrosting control method and device for air-cooled refrigerator and air-cooled refrigerator |
| CN114485040A (en) * | 2022-02-21 | 2022-05-13 | 珠海格力电器股份有限公司 | Control device and method for refrigeration appliance and refrigeration appliance |
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