CN115435539A - Defrosting method of evaporator and refrigerator - Google Patents
Defrosting method of evaporator and refrigerator Download PDFInfo
- Publication number
- CN115435539A CN115435539A CN202210922173.3A CN202210922173A CN115435539A CN 115435539 A CN115435539 A CN 115435539A CN 202210922173 A CN202210922173 A CN 202210922173A CN 115435539 A CN115435539 A CN 115435539A
- Authority
- CN
- China
- Prior art keywords
- fin
- defrosting
- heating device
- fins
- heating
- 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.)
- Pending
Links
- 238000010257 thawing Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 129
- 230000005611 electricity Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- F25D21/08—Removing frost by electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Defrosting Systems (AREA)
Abstract
The invention provides a defrosting method of an evaporator and a refrigerator, wherein the evaporator comprises a plurality of fins which are arranged in parallel and a heating device for heating each fin; the defrosting method comprises the following steps: judging whether each fin needs defrosting or not; when two fins all need to defrost, start the heating device of upside earlier, later start the heating device of downside according to first preset condition. On one hand, each fin corresponds to one heating device, so that the defrosting device can uniformly defrost; on the other hand, when two fins all need to defrost, heat two fins according to from last order down, the defrosting water that upside fin defrosting produced can be to lower floor's fin defrosting in advance, when lower floor's fin heats, needs less heating energy consumption, just can accomplish the defrosting of lower floor's fin. In conclusion, the invention has the advantages of low defrosting energy consumption and uniform defrosting.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a defrosting method of an evaporator and a refrigerator.
Background
For refrigeration equipment, the phenomenon that an evaporator frosts often occurs, and the running efficiency of the refrigeration equipment is affected by frosting, so that the refrigeration equipment needs to perform defrosting operation on the evaporator after being refrigerated for a period of time. In the prior art, the defrosting method of the evaporator is generally as follows: a separate heating device is arranged below the evaporator to defrost the evaporator, and the heating device is a heating wire or a heating pipe. Therefore, the existing defrosting method has the problems of uneven defrosting and high defrosting energy consumption.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a defrosting method of an evaporator and a refrigerator that overcome or at least partially solve the above problems, and can solve the problems of high defrosting energy consumption and uneven defrosting.
Specifically, the invention provides a defrosting method of an evaporator, wherein the evaporator comprises a plurality of fins arranged in parallel and a heating device for heating each fin; the defrosting method comprises the following steps:
judging whether each fin needs defrosting or not;
when the two fins need defrosting, the heating device on the upper side is started firstly, and then the heating device on the lower side is started according to a first preset condition.
Preferably, two of the fins are two adjacent fins; the defrosting method of the evaporator further comprises the following steps:
when one fin needs defrosting and the fin adjacent to the upper side of the fin is defrosting or does not need defrosting, the corresponding heating device is started to defrost the corresponding fin.
Preferably, the two fins are two adjacent fins; the defrosting method of the evaporator further comprises the following steps:
when one fin needs defrosting and the fin adjacent to the upper side of the fin is defrosting, the corresponding heating device is started according to a second preset condition so as to defrost the corresponding fin.
Preferably, the first preset condition is that:
closing the heating device corresponding to the fin on the upper side; or after the heating device corresponding to the fin on the upper side is started for a first preset time; or the surface temperature of the fins on the upper side reaches a first preset temperature.
Preferably, the second preset condition is:
closing the heating device corresponding to the fin on the upper side; or after the heating device corresponding to the fin on the upper side is started for a second preset time; or the surface temperature of the upper side fin reaches a first preset temperature; or, after a third preset time when one of the fins needs defrosting.
Preferably, when the surface temperature of the fin is greater than or equal to a second preset temperature, or when the heating device corresponding to the fin is turned on for a fourth preset time, the heating device corresponding to the fin is turned off to stop defrosting of the fin.
Preferably, the first preset time is less than the fourth preset time.
Preferably, when one of the fins needs to be defrosted and the fin adjacent to the upper side thereof needs to be defrosted,
when the heating device corresponding to the upper side fin is started for a fifth preset time, the heating device corresponding to the upper side fin is closed to stop defrosting of the upper side fin;
and when the surface temperature of the fins on the lower side is greater than or equal to a fifth preset temperature, closing the heating devices corresponding to the fins on the lower side to stop defrosting of the fins on the lower side.
Preferably, each fin comprises a fin body, and the fin body is of a hollow structure;
the heating device is a heating body which generates heat by utilizing electricity, the heating body is arranged in the fin body, and the heating body is configured to heat the fin body;
the fin body comprises two fin layers, and the inner space of the fin body is formed by surrounding the two fin layers; the two fin layers are spliced or welded together;
the heating body comprises a heating wire and an insulating skin arranged on the outer side of the heating wire;
the fin body is characterized in that the inner space of the fin body is a snake-shaped channel or a U-shaped channel, a straight line section of the U-shaped channel extends along the length direction of the fin body, and two ends of the snake-shaped channel or the U-shaped channel are located at the same end part of the fin body.
The invention also provides a refrigerator, which comprises a control device; the control device comprises a processor and a memory, wherein the memory stores a control program and is adapted to implement the control method of the evaporator according to any one of the above when the control program is executed by the processor.
In the defrosting method of the evaporator, on one hand, each fin corresponds to one heating device, so that uniform defrosting can be realized; on the other hand, when two fins all need to defrost, heat two fins according to from last order down, the defrosting water that upside fin defrosting produced can be to lower floor's fin defrosting in advance, when lower floor's fin heats, needs less heating energy consumption, just can accomplish the defrosting of lower floor's fin. In conclusion, the invention has the advantages of low defrosting energy consumption and uniform defrosting.
Furthermore, the fin comprises a fin body, the heating device is a heating body, and the heating body is arranged in the fin body, so that the heat loss of the heating body can be reduced, the heating efficiency is improved, and the defrosting energy consumption is reduced; in addition, through setting up snakelike passageway or U-shaped passageway, can increase the area of contact of heat-generating body and fin body, and then just enable to change the frost more even. In addition, the wiring end of the heating body of each fin is positioned on the same side of the evaporation tube, so that the heating bodies can be electrically connected conveniently, and the installation space can be saved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:
FIG. 1 is a flow chart of a method of defrosting an evaporator according to one embodiment of the invention;
FIG. 2 is a schematic block diagram of an evaporator according to one embodiment of the invention;
FIG. 3 is a schematic structural view of a fin of an evaporator according to one embodiment of the present invention;
FIG. 4 is a schematic configuration view of a heat generating body of the fin shown in FIG. 3;
fig. 5 is a schematic structural view of a fin layer of the fin shown in fig. 3.
Detailed Description
A defrosting method of an evaporator and a refrigerator according to an embodiment of the present invention will be described with reference to fig. 1 to 5. In the description of the present embodiments, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. When a feature "comprises or includes" a or some of the features that it covers, this is to be taken as an indication that other features are not excluded and that other features may further be included, unless expressly stated otherwise.
Unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and "coupled" and the like are intended to be inclusive and mean, for example, that is, permanently connected, removably connected, or integral to; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.
Further, in the description of the present embodiment, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature therebetween. That is, in the description of the present embodiment, the first feature being "on", "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is higher in level than the second feature. A first feature "under," "beneath," or "beneath" a second feature may be directly under or obliquely under the first feature, or simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiments, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Fig. 1 is a flowchart of a defrosting method of an evaporator 300 according to an embodiment of the present invention, and as shown in fig. 1 and referring to fig. 2 to 5, the embodiment of the present invention provides a defrosting method of an evaporator 300, wherein the evaporator 300 includes a plurality of fins 100 arranged in parallel and spaced up and down, and a heating device for heating each fin 100; the defrosting method comprises the following steps: judging whether each fin 100 needs defrosting; when the two fins 100 are required to be defrosted, the heating device on the upper side is started first, and then the heating device on the lower side is started according to a first preset condition.
In the defrosting method of the evaporator 300 of the present invention, on one hand, each fin 100 corresponds to one heating device, so that the present invention can achieve uniform defrosting; on the other hand, when two fins 100 all need to defrost, heat two fins 100 according to from the order down, the water of defrosting that upside fin 100 defrosted the production can defrost lower floor's fin 100, when lower floor's fin 100 heats, needs less heating energy consumption, just can accomplish the defrosting of lower floor's fin 100. In conclusion, the invention has the advantages of low defrosting energy consumption and uniform defrosting.
In some embodiments of the invention, the first preset condition is: closing the heating device corresponding to the upper side fin 100, namely stopping defrosting the upper side fin 100; or, after the heating device corresponding to the upper side fin 100 is started for a first preset time; alternatively, the surface temperature of the upper side fin 100 reaches the first preset temperature.
In some embodiments of the present invention, the two fins 100 are two adjacent fins 100. Specifically, when only two adjacent fins 100 need defrosting, the heating device corresponding to the upper fin 100 of the two adjacent fins 100 is directly started, and then the heating device corresponding to the lower fin 100 of the two adjacent fins 100 is started according to a first preset condition. When all three adjacent fins 100 need defrosting, the heating device corresponding to the uppermost fin 100 of the three adjacent fins 100 may be directly started, then the heating device corresponding to the middle fin 100 may be started according to a first preset condition, and then the heating device corresponding to the lowermost fin 100 may be started again according to the first preset condition with the middle fin 100 as a reference. That is, when three or more adjacent fins 100 are required to be defrosted, the heating devices are sequentially activated in the vertical order. In this case, for every two adjacent fins 100, the heating device on the upper side is started first, and then the heating device on the lower side is started according to the first preset condition.
In some embodiments of the present invention, the defrosting method of the evaporator 300 further comprises: when one fin 100 needs defrosting and the fin 100 adjacent to the upper side thereof is defrosting or does not need defrosting, the corresponding heating device is started to defrost the corresponding fin 100. That is, when one fin 100 needs defrosting, if the adjacent fin on the upper side does not need defrosting at the same time, the heating device corresponding to the fin 100 is directly started. The fins on the lower side of the fin 100 do not need to be defrosted, and the starting of the heating device corresponding to the fin 100 is not influenced.
In some embodiments of the present invention, the defrosting method of the evaporator 300 further comprises: when one fin 100 needs to be defrosted and the fin 100 adjacent to the upper side of the fin 100 is defrosted, the corresponding heating device is started according to a second preset condition so as to defrost the corresponding fin 100. That is, when the upper adjacent fin 100 of one fin 100 is defrosting, the heating device corresponding to the fin 100 is not directly activated, but activated according to the second preset condition.
Further, the second preset condition is: closing the heating device corresponding to the upper fin 100 of the fin; or after the heating device corresponding to the upper side fin 100 is started for a second preset time; alternatively, the surface temperature of the upper side fin 100 reaches the first preset temperature. Alternatively, the second preset condition is after a third preset time when one fin 100 (the fin) needs defrosting. That is, when one fin needs defrosting, the adjacent fin on the upper side of the fin starts defrosting, and the corresponding heating device can be started to defrost the fin needing defrosting after the third preset time.
In some embodiments of the invention, for each fin 100, defrosting of that fin 100 may be ended by one or more of the following conditions. The condition is that when the surface temperature of the fin 100 is greater than or equal to the second preset temperature, or when the heating device corresponding to the fin 100 is turned on for a fourth preset time. That is, the defrosting method of the evaporator 300 further includes: when the surface temperature of the fin 100 is greater than or equal to the second preset temperature, or when the heating device corresponding to the fin 100 is turned on for a fourth preset time, the heating device corresponding to the fin 100 is turned off to stop defrosting the fin 100. The second preset temperature refers to a surface temperature when the fin 100 is completely defrosted, and the fourth preset time refers to a time required when the fin 100 is completely defrosted.
In some preferred embodiments of the present invention, the first preset time is less than the fourth preset time. Specifically, when the heating device corresponding to the upper fin 100 of the two fins 100 is not stopped, the heating device corresponding to the lower fin 100 is started to start heating, and at this time, the defrosting efficiency is high. In further preferred embodiments of the present invention, the first predetermined temperature is less than the second predetermined temperature. Specifically, when the surface of the upper fin 100 of the two fins 100 does not reach the second preset temperature, the heating device corresponding to the lower fin 100 is started to start heating, and at this time, the defrosting efficiency is high.
In some embodiments of the present invention, when defrosting is required for only two adjacent fins 100 at the same time, the defrosting of the two fins may be finished as follows: when the heating device corresponding to the upper side fin 100 is started for a fifth preset time, the heating device corresponding to the upper side fin 100 is closed to stop defrosting of the upper side fin 100; when the surface temperature of the lower fin 100 is greater than or equal to the fifth preset temperature, the heating device corresponding to the lower fin 100 is turned off to stop defrosting of the lower fin 100.
When defrosting is needed for a plurality of adjacent fins 100 at the same time, the defrosting of the two fins can be finished in the following manner: when the heating device corresponding to the uppermost fin 100 is turned on for a fifth preset time, the heating device corresponding to the uppermost fin 100 is turned off to stop defrosting of the uppermost fin 100; and when the surface temperature of each of the other fins 100 is greater than or equal to the fifth preset temperature, closing the corresponding heating device to stop defrosting of the fin 100.
Preferably, the fifth preset time is equal to the time required for the fins 100 to completely defrost, and the fifth preset temperature is equal to the surface temperature of the fins 100 when completely defrost; that is, the conditions for finishing defrosting of the upper and lower fins are not consistent, and the upper side adopts time control, so that the heat generation time is longer, and more hot water is generated for defrosting the lower side. The defrosting of the lower fin not only generates heat of the heating device but also generates heat applied to the upper fin, and if the long-time control is adopted, the heat may be wasted.
In some embodiments of the present invention, as shown in fig. 2-5, each fin 100 includes a fin body having an internal hollow structure; the heating device is a heating body which generates heat by utilizing electricity, the heating body is arranged in the fin body, and the heating body is configured to heat the fin body. The defrosting process of the fin 100 is as follows: the heating element 110 heats the fin body 110 by generating heat using electricity, and frost on the surface of the heated fin body 110 melts. In some alternative embodiments, the heating device is a heat plate against which a surface of each fin 100 abuts.
During defrosting, the fin body 110 is heated by the heating body 120 arranged in the fin, and compared with the conventional heating from the bottom of an evaporator, the heating path of the heating body is shorter, and the contact area between the heating body and the fin body is larger; therefore, the invention has the advantages of uniform defrosting, high defrosting efficiency and good defrosting effect. In addition, the influence on surrounding non-metal parts is small during defrosting, the non-metal parts are not easy to deform and burn, and meanwhile, the installation space can be saved.
In some embodiments of the present invention, as shown in fig. 3 and 5, the fin body 110 includes two fin layers 111, and the internal space of the fin body 110 is enclosed by the two fin layers 111; the two fin layers 111 are inserted or welded together, or can be adhered together by glue.
When the fin 110 is assembled, the heating element 120 is sandwiched between the two fin layers 111, and then the two fin layers 111 are inserted or welded together, thereby completing the assembly of the fin 100. Therefore, the fin 100 has the advantages of simple structure, easy manufacture and low manufacturing cost.
In some alternative embodiments of the invention, the interior space of the fin body 110 is a serpentine or U-shaped channel 112, the straight section of the U-shaped channel 112 extending along the length of the fin body 110, and both ends of the serpentine or U-shaped channel 112 are located at the same end of the fin body.
By arranging the serpentine channel or the U-shaped channel 112, on one hand, the contact area between the heating body 120 and the fin body 110 can be increased, so that the defrosting efficiency and the defrosting uniformity can be improved; in addition, on the other hand, the gap between the heating element 120 and the fin body 110 can be reduced, so that the heating element 120 is in close contact with the fin body 110, the heating efficiency of the heating element 120 is improved, and energy waste is avoided.
In some alternative embodiments of the present invention, as shown in fig. 4, the heating element 120 includes a heating wire and an insulating sheath disposed outside the heating wire, and the insulating sheath can improve the safety of the fin.
Furthermore, two ends of the serpentine channel or the U-shaped channel 112 are sealed by silica gel, so that the safety performance of the fin can be further improved.
In some alternative embodiments of the present invention, as shown in fig. 3 and 5, the fin body 110 is provided with mounting holes 140, and the mounting holes 140 are used for inserting the evaporating tubes 200.
In some embodiments of the present invention, as shown in fig. 2, the terminals of the heating elements 120 of the fins 100 are located on the same side of the evaporating tubes 200, and the heating elements 120 of adjacent fins 100 are connected in parallel for independent control. The terminals of the heating elements 120 of the respective fins 100 are located on the same side of the evaporating tube 200, which facilitates the electrical connection of the respective heating elements 120 and saves the installation space. Of course, in other alternative embodiments, the heating element 120 of each fin 100 is separately electrically controlled by using a separate lead-out wire.
In some embodiments of the invention, the fin 100 further comprises grounding means 130, the grounding means 130 being used for safe grounding of the fin. The grounding device 130 is disposed on the fin body 110, and the grounding device 130 is a screw hole, a quick-plug terminal or a grounding wire. The heating element 120 is powered by strong current (AC 220V) or weak current (DC 12V/24V); when the heating element 120 is powered by strong electricity, the grounding device is a grounding wire, specifically, the grounding wire is welded or pressed on the fin body 110.
The present invention also provides a refrigerator including a control device and an evaporator 300; the control device comprises a processor and a memory, wherein the memory stores a control program and when the control program is executed by the processor is used for realizing the control method of the evaporator 300 according to any of the above embodiments.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. The defrosting method of the evaporator is characterized in that the evaporator comprises a plurality of fins which are arranged in parallel and are arranged at intervals in the vertical direction, and a heating device for heating each fin; the defrosting method comprises the following steps:
judging whether each fin needs defrosting or not;
when the two fins need defrosting, the heating device on the upper side is started firstly, and then the heating device on the lower side is started according to a first preset condition.
2. The defrosting method of an evaporator according to claim 1,
the two fins are two adjacent fins; the defrosting method of the evaporator further comprises the following steps:
when one fin needs defrosting and the fin adjacent to the upper side of the fin is defrosting or does not need defrosting, starting the corresponding heating device to defrost the corresponding fin.
3. The defrosting method of an evaporator according to claim 1,
the two fins are two adjacent fins; the defrosting method of the evaporator further comprises the following steps:
when one fin needs to be defrosted and the fin adjacent to the upper side of the fin is defrosted, the corresponding heating device is started according to a second preset condition so as to defrost the corresponding fin.
4. The defrosting method of an evaporator according to claim 1, wherein the first preset condition is:
closing the heating device corresponding to the fin on the upper side; or after the heating device corresponding to the fin on the upper side is started for a first preset time; or the surface temperature of the fins on the upper side reaches a first preset temperature.
5. A defrosting method of an evaporator according to claim 3, wherein the second preset condition is:
closing the heating device corresponding to the fin on the upper side; or after the heating device corresponding to the fin on the upper side is started for a second preset time; or the surface temperature of the upper side fin reaches a first preset temperature; or after a third preset time when the fins on the lower side need defrosting.
6. The defrosting method of an evaporator according to claim 4, further comprising:
and when the surface temperature of the fin is greater than or equal to a second preset temperature or the heating device corresponding to the fin is started for a fourth preset time, closing the heating device corresponding to the fin to stop defrosting of the fin.
7. The defrosting method of an evaporator according to claim 6,
the first preset time is less than the fourth preset time.
8. The defrosting method of an evaporator according to claim 2,
when one of the fins needs to be defrosted and the fin adjacent to the upper side thereof needs to be defrosted,
when the heating device corresponding to the upper side fin is started for a fifth preset time, the heating device corresponding to the upper side fin is closed to stop defrosting of the upper side fin;
and when the surface temperature of the fins on the lower side is greater than or equal to a fifth preset temperature, closing the heating devices corresponding to the fins on the lower side to stop defrosting of the fins on the lower side.
9. The defrosting method of an evaporator according to claim 1,
each fin comprises a fin body, and the fin body is of a hollow structure;
the heating device is a heating body which generates heat by utilizing electricity, the heating body is arranged in the fin body, and the heating body is configured to heat the fin body;
the fin body comprises two fin layers, and the inner space of the fin body is formed by surrounding the two fin layers; the two fin layers are spliced or welded together;
the heating body comprises a heating wire and an insulating skin arranged on the outer side of the heating wire;
the fin body is characterized in that the inner space of the fin body is a snake-shaped channel or a U-shaped channel, a straight line section of the U-shaped channel extends along the length direction of the fin body, and two ends of the snake-shaped channel or the U-shaped channel are located at the same end of the fin body.
10. A refrigerator includes a control device; the control device includes a processor and a memory, wherein the memory stores a control program and is used to implement the control method of the evaporator according to any one of claims 1 to 9 when the control program is executed by the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210922173.3A CN115435539A (en) | 2022-08-02 | 2022-08-02 | Defrosting method of evaporator and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210922173.3A CN115435539A (en) | 2022-08-02 | 2022-08-02 | Defrosting method of evaporator and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115435539A true CN115435539A (en) | 2022-12-06 |
Family
ID=84243128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210922173.3A Pending CN115435539A (en) | 2022-08-02 | 2022-08-02 | Defrosting method of evaporator and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115435539A (en) |
-
2022
- 2022-08-02 CN CN202210922173.3A patent/CN115435539A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100445480B1 (en) | Heater assembly for refrigerator | |
| US20120023993A1 (en) | Evaporator with integrated heating element | |
| CN105135791A (en) | Defrosting system and defrosting method for air cooling refrigerator and air cooling refrigerator | |
| KR20160088777A (en) | Ice maker | |
| US11073323B2 (en) | Evaporator and refrigerator comprising same | |
| CN115435539A (en) | Defrosting method of evaporator and refrigerator | |
| US11525619B2 (en) | Defrosting apparatus and refrigerator comprising same | |
| KR101497332B1 (en) | Electric heater for an automobile with heat storage material | |
| CN111023681A (en) | Refrigerator defrosting device and method thereof | |
| CN218495550U (en) | Fin, heat exchanger and refrigerator | |
| KR100672571B1 (en) | Defroster of evaporator for refrigerator | |
| KR20130016999A (en) | Evaporator having a defrosting heater installed in a tube and method for manufacturing the same | |
| KR101238441B1 (en) | Eater for defrosting and manufacturing method for the same | |
| JP6223704B2 (en) | refrigerator | |
| US20200141614A1 (en) | to HEAT PUMP SYSTEM AND CONTROL METHOD THEREFOR | |
| CN110895074A (en) | Refrigerator with rotary fin defrosting heating structure | |
| JP2010032152A (en) | Cooler with defrosting device, its manufacturing method, and article storage device comprising cooler | |
| JPS644313B2 (en) | ||
| KR20160109089A (en) | Electric heater for defrosting of freezing unit | |
| CN213631142U (en) | Defrosting device for refrigerator evaporator | |
| KR20050098326A (en) | A electric heater and method for manufacturing therof | |
| US20240280334A1 (en) | An evaporator assembly | |
| WO1995004907A1 (en) | Evaporator for a cooling device | |
| CN117989797A (en) | Defrosting heating device for refrigerator and refrigerator | |
| CN1766495A (en) | Defrosting device of evaporator for refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |