CN107606844B - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
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- CN107606844B CN107606844B CN201710714524.0A CN201710714524A CN107606844B CN 107606844 B CN107606844 B CN 107606844B CN 201710714524 A CN201710714524 A CN 201710714524A CN 107606844 B CN107606844 B CN 107606844B
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- defrosting
- evaporator
- heat storage
- refrigerator
- heat
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Abstract
The invention provides a refrigerator which comprises a refrigerating chamber, an evaporator chamber and a press bin, wherein the evaporator chamber and the press bin are communicated with the refrigerating chamber, an evaporator is arranged in the evaporator chamber, a compressor is arranged in the press bin, the refrigerator also comprises a defrosting device used for defrosting the evaporator, and the defrosting device comprises a heat storage device arranged close to the compressor and a defrosting fan used for blowing heat dissipated by the heat storage device into the evaporator chamber. According to the refrigerator, the heat storage device is arranged close to the compressor, so that the heat of the compressor can be absorbed when the compressor works, and the heat can be dissipated when defrosting is needed, and energy waste can be avoided; by arranging the defrosting fan, heat generated by the heat storage device can be blown into the evaporator chamber during defrosting, defrosting is uniform, and the evaporator cannot be damaged; through setting up a plurality of inlet air channel to when changing the frost, improve the heat transfer area of air and heat accumulation device, improve the speed of changing the frost.
Description
Technical Field
The invention relates to a refrigerator, in particular to a refrigerator with a defrosting function.
Background
The frost-free refrigerator needs to defrost the evaporator after being used for a period of time. The conventional refrigerator is generally provided with a heating device near an evaporator, the heating device is started when defrosting is needed, and the heating device is used for heating to defrost the evaporator. However, when the defrosting mode is adopted, on one hand, extra electric energy needs to be provided, which easily causes energy waste; on the other hand, the heating device needs to be close to the evaporator, which is likely to damage the evaporator and cause uneven heating.
In view of the above, there is a need for an improved refrigerator to solve the above problems.
Disclosure of Invention
The invention aims to provide a refrigerator, which aims to solve the problems of high energy consumption, uneven defrosting of an evaporator and the like caused by defrosting of a heating device arranged in the conventional refrigerator.
In order to achieve the purpose, the invention provides a refrigerator which comprises a refrigerating chamber, an evaporator chamber and a press bin, wherein the evaporator chamber and the press bin are communicated with the refrigerating chamber, an evaporator is arranged in the evaporator chamber, a compressor is arranged in the press bin, the refrigerator also comprises a defrosting device for defrosting the evaporator, and the defrosting device comprises a heat storage device and a defrosting fan, the heat storage device is arranged close to the compressor, and the defrosting fan is used for blowing heat dissipated by the heat storage device into the evaporator chamber.
As a further improvement of the present invention, the defrosting device further includes a defrosting housing formed with a heat storage chamber, the defrosting housing is disposed adjacent to the compressor, and the heat storage device is disposed in the heat storage chamber.
As a further improvement of the present invention, the defrosting housing further forms a fan cavity disposed adjacent to the heat storage cavity, and the defrosting fan is disposed in the fan cavity.
As a further improvement of the present invention, the defrosting device further includes a defrosting pipeline for connecting the fan cavity and the evaporator chamber, and the fan cavity is located between the defrosting pipeline and the heat storage cavity.
As a further improvement of the present invention, the refrigerator further includes a defrosting opening communicated with the evaporator chamber, the defrosting pipeline is communicated with the defrosting opening, and the defrosting device further includes a first air door for shielding the defrosting opening.
As a further improvement of the invention, the defrosting shell forming the heat storage cavity is provided with a plurality of air inlet channels penetrating through the heat storage cavity in a honeycomb shape, and the air inlet channels are used for connecting the fan cavity with external air.
As a further improvement of the present invention, the heat storage cavities include a first heat storage cavity and a plurality of second heat storage cavities arranged at intervals, the first heat storage cavity is communicated with the plurality of second heat storage cavities, the first heat storage cavity is arranged close to the compressor than the second heat storage cavities, and the plurality of air inlet channels penetrate through the plurality of second heat storage cavities along the arrangement direction of the second heat storage cavities.
As a further improvement of the invention, the heat storage device is a heat storage agent poured in the heat storage cavity.
As a further improvement of the invention, the refrigerator comprises an evaporator cover, the evaporator chamber is formed by the evaporator cover in an enclosing way, the bottom of the evaporator cover is provided with a water outlet in a penetrating way, the refrigerator also comprises a water outlet pipe communicated with the water outlet, and the water outlet pipe is far away from the water outlet
As a further improvement of the invention, an evaporation dish for receiving defrosted water is arranged below one end of the water outlet pipe, which is far away from the water outlet, of the refrigerator, the bottom of the evaporator cover is obliquely arranged to form a water guide part, and the water outlet is positioned at the lowest point of the water guide part.
As a further improvement of the present invention, the refrigerator includes an evaporator cover, the evaporator chamber is surrounded by the evaporator cover, the evaporator cover is provided with a first air opening and a second air opening for communicating the refrigerating chamber and the evaporator chamber, the first air opening is provided with a refrigerating fan for guiding cold air, the refrigerator further includes a shielding member for shielding the refrigerating fan and a second air door for shielding the second air opening.
The invention has the beneficial effects that: according to the refrigerator, the heat storage device is arranged close to the compressor, so that the heat of the compressor can be absorbed when the compressor works, and the heat can be dissipated when defrosting is needed, and energy waste can be avoided; through setting up the fan that defrosts to can blow into the evaporimeter room with the heat that the heat accumulation device produced when defrosting, it is even and can not destroy the evaporimeter to defrostize.
Drawings
FIG. 1 is a schematic view of the refrigerator of the present invention except for the refrigerating compartment;
FIG. 2 is a schematic structural view of the defrosting apparatus and the compressor of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the defrosting housing A-A of FIG. 2;
FIG. 4 is a side view of the hood of FIG. 1;
fig. 5 is a flowchart of a control method of a refrigerator of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, the refrigerator of the present invention includes a refrigerating compartment, an evaporator cover 1 formed with an evaporator chamber 2 communicating with the refrigerating compartment, an evaporator 3 located in the evaporator chamber 2, a compressor compartment 7, a compressor 4 located in the compressor compartment 7, a defrosting device 5 for defrosting the evaporator 3, an evaporation pan 6 for receiving defrosting water, and a control unit for controlling the operation of the refrigerator.
The bottom of the evaporator cover 1 is penetrated with a water outlet 12, the bottom of the evaporator cover 1 is obliquely arranged to form a water guide part 14, and the water outlet 12 is located at the lowest point of the water guide part 14. The refrigerator further comprises a water outlet pipe 13 communicated with the water outlet 12, and one end of the water outlet pipe 13, which is far away from the water outlet 12, is communicated with the outside air, so that the air in the evaporator chamber 2 can be led out from the water outlet pipe 13.
The evaporating dish 6 is arranged below one end of the water outlet pipe 13 of the refrigerator, which is far away from the water outlet 12. When the frost on the evaporator 3 melts and drops downward, the frost slides to the water outlet 12 along the water guide part 14, and then drops downward from the water outlet 12 to the evaporation pan 6 from the water outlet pipe 13. The evaporating dish 6 is positioned in the press bin 7 and is arranged at a distance from the water outlet pipe 13.
The evaporator cover 1 is provided with a first air opening 15 and a second air opening 16 which are used for communicating the refrigerating chamber with the evaporator chamber 2, a refrigerating fan 17 which is used for guiding cold air is arranged at the first air opening 15, and the refrigerator further comprises a shielding piece 18 which is used for shielding the refrigerating fan 17 and a second air door 19 which is used for shielding the second air opening 16. The shielding member 18 and the second air door 19 are used for shielding the refrigerating fan 17 and the second air opening 16 when the defrosting device 5 is in operation, so as to isolate the evaporator chamber 2 and the refrigerating chamber and prevent heat from entering the refrigerating chamber from the evaporator chamber 2.
Of course, in other embodiments, the shield 18 can be omitted and a third damper can be provided which is closed during defrosting to block the first air opening 15, which likewise serves the purpose of preventing heat from entering the refrigerated compartment from the evaporator compartment 2.
The defrosting device 5 includes a heat storage device 51 disposed near the compressor 4, a defrosting fan 52 for blowing heat dissipated from the heat storage device 51 into the evaporator chamber 2, a defrosting housing 53 for housing the heat storage device 51, and a defrosting duct 54 for passing air blown by the defrosting fan 52.
The defrosting device is characterized in that a defrosting opening 11 communicated with the evaporator chamber 2 is formed in the defrosting shell 53, the defrosting pipeline 54 is communicated with the evaporator chamber 2 through the defrosting opening 11, and the defrosting device 5 further comprises a first air door used for shielding the defrosting opening 11. The first damper is opened when the refrigerator is defrosted, and the defrosting blower 52 blows heat generated from the heat storage device 51 into the evaporator chamber 2, and is closed when the refrigerator is cooling to isolate the heat transfer.
The defrosting housing 53 is formed with a heat storage cavity 531 and a fan cavity 532 for accommodating the defrosting fan 52, and the fan cavity 532 is located between the heat storage cavity 531 and the defrosting pipeline 54 and is communicated with the heat storage cavity 531 through the defrosting pipeline 54. The heat storage device 51 is disposed in the heat storage cavity 531, in this embodiment, the heat storage device 51 is a heat storage agent filled in the heat storage cavity 531, and the defrosting shell 53 is disposed near the compressor 4, so that when the compressor 4 operates, the heat emitted by the compressor 4 is absorbed by the heat storage agent through phase change. And when defrosting, accumulated heat is dissipated by utilizing the phase change of the heat storage agent, and defrosting is carried out by utilizing the dissipated heat.
In other embodiments, the thermal storage device 51 may be a separate device disposed in the thermal storage chamber 53, and it is preferable to dispose the thermal storage device 51 in direct contact with the defrosting case 53 for better heat transfer.
The defrosting shell 53 forming the heat accumulation cavity 531 is provided with a plurality of air inlet channels 533 which penetrate through the heat accumulation cavity 531 in a honeycomb shape, and the air inlet channels 533 are used for connecting the ventilator cavity 532 with external air. In this embodiment, the heat storage agent is disposed around the air inlet channel 533, so that when the defrosting fan 52 operates, external air passes through the air inlet channel 533 to exchange heat, and then heated air is introduced into the evaporator chamber 2 from the fan cavity 532 through the defrosting pipe 54. Through setting up a plurality of inlet air channel 533, can increase the area of contact of air and defrosting casing 53, increase heat transfer, and then can improve the speed of defrosting.
The heat accumulation cavity 531 comprises a first heat accumulation cavity 5311 and a plurality of second heat accumulation cavities 5312 arranged at intervals, the first heat accumulation cavity 5311 is communicated with the plurality of second heat accumulation cavities 5312, the first heat accumulation cavity 5311 is arranged close to the compressor 4 compared with the second heat accumulation cavity 5312, and the plurality of air inlet channels 533 penetrate through the plurality of second heat accumulation cavities 5312 along the arrangement direction of the second heat accumulation cavity 5312. With this arrangement, on the one hand, the defrosting housing 53 forming the first heat storage chamber 5311 is in contact with the compressor 4 over a large area, thereby improving the heat absorption efficiency of the heat storage device 51 during cooling of the refrigerator, and on the other hand, the plurality of second heat storage chambers 5312 are arranged at intervals, so that the side walls forming the second heat storage chambers 5312 can exchange heat with air, thereby improving the heat exchange area.
In this embodiment, the defrosting housing 53 forming the first heat accumulating chamber 5311 is abutted against the top of the compressor 4, and the defrosting housing 53 is made of a metal material to increase the heat exchange rate.
The control unit is in communication connection with the compressor 4, the refrigerating fan 17, the defrosting fan 52, the first air door, the second air door 19, the shielding piece 18 and the like so as to control the refrigeration and defrosting of the refrigerator.
As shown in fig. 5, the present invention also provides a method for controlling a refrigerator, including the steps of:
s1, the control unit controls the compressor 4 to work to supply cold to the refrigerating compartment, and the heat storage device 51 stores heat; the heat storage device 51 automatically stores heat when the compressor 4 is operated without being operated by a control unit;
s2: the control unit judges whether the evaporator 3 meets defrosting conditions or not, and if yes, the next step is carried out; if not, controlling the compressor 4 to continue working; the defrosting condition in this embodiment can be determined according to factors such as the frost thickness on the evaporator 3 or the specific operation condition of the refrigerator, and the like, which are not described in detail herein;
S21: opening the first damper to expose the defrosting port 11;
S22: the control unit controls the shutter 18 to close to block the cooling fan 17, and controls the second damper 19 to close to block the second air port 16; meanwhile, the refrigeration fan 17 is controlled to stop running;
s3: the control unit controls the compressor 4 to stop working and controls the defrosting fan 52 to start working to blow the heat emitted by the heat storage device 51 into the evaporator chamber 2; in this embodiment, the step S21、S22And the order of S3 may be changed arbitrarily;
s4: after the defrosting fan 52 works for T1 time, the control unit judges whether the evaporator 3 meets the defrosting ending condition, if so, the next step is carried out; if not, controlling the defrosting fan 52 to continue working;
s5: the control unit controls the defrosting fan 52 to stop working;
s6: the control unit controls the compressor 4 to start working;
S61: closing the first air door to shield the defrosting port 11;
S62: the control unit controls the shutter 18 to open to expose the cooling fan 17, and controls the second damper 19 to open to expose the second air port 16 to control the cooling fan 17 to operate.
After the time interval T2 after the step S5 is executed, the step S6 is executed, and the time T2 is 30 seconds, so that the residual heat in the evaporator chamber 2 can be utilized to defrost the evaporator 3 after the defrosting fan 52 stops running, and the heat can be utilized more fully.
In addition, in this embodiment, the step S21Step (a) and (b)Step S22The order of (a) and (b) can be adjusted as desired. Similarly, step S61And step S62The order of (a) can also be adjusted. Preferably, the step S6 is performed after an interval T3 time after the step S6 is performed2The time T3 is 3 minutes, so that after the compressor 4 is operated for a certain period of time, the temperature in the evaporator chamber 2 is lowered, and then the shielding member 18 and the second damper 19 are opened to make the refrigerator enter a normal cooling state, thereby preventing the problem of temperature fluctuation in the cooling chamber caused by communication with the cooling chamber when the temperature in the evaporator chamber 2 is too high.
According to the refrigerator, the heat storage device 51 is arranged close to the compressor 4, so that the heat of the compressor 4 can be absorbed when the compressor 4 works, and the heat can be dissipated when defrosting is needed, and energy waste can be avoided; by arranging the defrosting fan 52, the heat generated by the heat storage device 51 can be blown into the evaporator chamber 2 during defrosting, and defrosting is uniform without damaging the evaporator 3; by arranging the air inlet channels 533, the heat exchange area between air and the heat storage device 51 is increased and the defrosting speed is increased when defrosting is performed; according to the control method of the refrigerator, the second air door 19 and the shielding piece 18 are opened at intervals after defrosting is finished, so that temperature fluctuation of a refrigerating chamber is avoided, and the defrosting effect is good.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a refrigerator, includes refrigeration room, with the evaporimeter room and the press storehouse that the room is linked together between the refrigeration, the indoor evaporimeter that is equipped with of evaporimeter, be equipped with the compressor in the press storehouse, its characterized in that: the refrigerator also comprises a defrosting device used for defrosting the evaporator, the defrosting device comprises a heat storage device arranged close to the compressor, a defrosting fan used for blowing heat emitted by the heat storage device into the evaporator chamber, and a defrosting shell with a heat storage cavity, and the heat storage device is arranged in the heat storage cavity;
the defrosting shell is arranged close to the compressor, a fan cavity arranged adjacent to the heat storage cavity is formed in the defrosting shell, and the defrosting fan is arranged in the fan cavity;
the defrosting shell of the heat storage cavity is formed into a honeycomb shape and is provided with a plurality of air inlet channels which penetrate through the heat storage cavity, and the air inlet channels are used for connecting the fan cavity with external air.
2. The refrigerator according to claim 1, wherein: the defrosting device further comprises a defrosting pipeline which is used for connecting the fan cavity and the evaporator chamber, and the fan cavity is located between the defrosting pipeline and the heat storage cavity.
3. The refrigerator according to claim 2, wherein: the refrigerator also comprises a defrosting opening communicated with the evaporator chamber, the defrosting pipeline is communicated with the defrosting opening, and the defrosting device also comprises a first air door used for shielding the defrosting opening.
4. The refrigerator according to claim 1, wherein: the heat accumulation chamber includes the second heat accumulation chamber that first heat accumulation chamber and a plurality of intervals set up, first heat accumulation chamber is linked together with a plurality of the second heat accumulation chamber, first heat accumulation chamber is close to than the second heat accumulation chamber the compressor sets up, and is a plurality of inlet air channel follows the direction of arranging in second heat accumulation chamber runs through a plurality of the setting of second heat accumulation chamber.
5. The refrigerator according to claim 1, wherein: the heat storage device is a heat storage agent filled in the heat storage cavity.
6. The refrigerator according to claim 1, wherein: the refrigerator includes the evaporator cover, the evaporator room by the evaporator cover encloses to establish and forms, the bottom of evaporator cover is run through and is seted up the delivery port, the refrigerator still include with the outlet pipe that the delivery port is linked together.
7. The refrigerator according to claim 6, wherein: the refrigerator is provided with an evaporation dish for receiving defrosting water below one end of the water outlet pipe, which is far away from the water outlet, the bottom of the evaporator cover is obliquely arranged to form a water guide part, and the water outlet is positioned at the lowest point of the water guide part.
8. The refrigerator according to any one of claims 1 to 7, wherein: the refrigerator comprises an evaporator cover, wherein the evaporator chamber is formed by enclosing the evaporator cover, the evaporator cover is provided with a first air opening and a second air opening which are used for communicating the refrigerating chamber with the evaporator chamber, the first air opening is provided with a refrigerating fan used for guiding cold air, and the refrigerator further comprises a shielding piece used for shielding the refrigerating fan and a second air door used for shielding the second air opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710714524.0A CN107606844B (en) | 2017-08-18 | 2017-08-18 | Refrigerator with a door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710714524.0A CN107606844B (en) | 2017-08-18 | 2017-08-18 | Refrigerator with a door |
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| Publication Number | Publication Date |
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| CN107606844A CN107606844A (en) | 2018-01-19 |
| CN107606844B true CN107606844B (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710714524.0A Active CN107606844B (en) | 2017-08-18 | 2017-08-18 | Refrigerator with a door |
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|---|---|---|---|---|
| CN110081645A (en) * | 2019-04-28 | 2019-08-02 | 北京工业大学 | A kind of wind cooling refrigerator and its working method |
| CN113701445A (en) * | 2020-05-22 | 2021-11-26 | 青岛海尔电冰箱有限公司 | Control method of refrigerating and freezing device |
| CN113701427A (en) * | 2020-05-22 | 2021-11-26 | 青岛海尔电冰箱有限公司 | Control method of dual-system refrigerator |
| CN113701444A (en) * | 2020-05-22 | 2021-11-26 | 青岛海尔电冰箱有限公司 | Control method of refrigerating and freezing device |
| CN113701428A (en) * | 2020-05-22 | 2021-11-26 | 青岛海尔电冰箱有限公司 | Control method of dual-system refrigerator |
| 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 |
| CN113720092A (en) * | 2021-09-15 | 2021-11-30 | 青岛海尔电冰箱有限公司 | Refrigerator and defrosting control method thereof |
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| CN87215933U (en) * | 1987-11-30 | 1988-08-10 | 上海制冷设备厂 | Energy-saving refrigeration cycle device for cold cupboard |
| CN1435616A (en) * | 2002-01-29 | 2003-08-13 | 乐金电子(天津)电器有限公司 | Defrosting device for evaporator of electric refrigerator |
| US6609388B1 (en) * | 2002-05-16 | 2003-08-26 | Thermo King Corporation | Method of defrosting an evaporator coil of a transport temperature control unit |
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| CN203880857U (en) * | 2014-05-14 | 2014-10-15 | 南京师范大学 | Oscillating heat pipe type phase change heat storage defrosting air conditioner |
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| CN107606844A (en) | 2018-01-19 |
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Address after: 266101 Haier Road, Laoshan District, Qingdao, Qingdao, Shandong Province, No. 1 Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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