CN218001926U - Evaporator pre-defrosting device and refrigeration equipment - Google Patents
Evaporator pre-defrosting device and refrigeration equipment Download PDFInfo
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- CN218001926U CN218001926U CN202221279837.0U CN202221279837U CN218001926U CN 218001926 U CN218001926 U CN 218001926U CN 202221279837 U CN202221279837 U CN 202221279837U CN 218001926 U CN218001926 U CN 218001926U
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Abstract
The utility model provides an evaporimeter defroster and refrigeration plant in advance relates to refrigeration plant technical field, has solved the technical problem that refrigerator evaporimeter easily frosted among the prior art. The device includes the condensation plate structure, and the condensation plate structure sets up on refrigeration plant's return air passageway, through leading cold wind to the condensation plate structure in order to be used for the condensation plate structure to carry out condensation dehumidification in advance to the return air to the evaporimeter. Because when leading cold wind to the condensation plate structure, can make the regional temperature that corresponds on the condensation plate structure reduce, when the lower region of return air process condensation plate structure upper temperature, can make the vapor in the return air take place the condensation, and then, reach the effect of dehumidification to the condition that minimizes the evaporimeter surface and frosting. The evaporator pre-defrosting device further comprises an air guide duct, the air guide duct is connected with a cold air duct of the refrigeration equipment, and partial cold air in the cold air duct can be guided to the condensation plate structure through the air guide duct, so that the cold air in the cold air duct can be fully utilized.
Description
Technical Field
The utility model belongs to the technical field of the refrigerator technique and specifically relates to an evaporimeter is defroster and refrigeration plant in advance.
Background
In the refrigerator, when water vapor in the freezing chamber and the refrigerating chamber flows through the evaporator through return air, the surface of the evaporator is frosted, and the heat exchange efficiency of the evaporator is reduced. The surface of the evaporator is reduced or even avoided from frosting, the heat exchange effect of the evaporator can be obviously improved, and the energy consumption is reduced.
The current utility model mainly considers how to remove the frosting that has already been on the evaporimeter and increase its heat exchange efficiency, like: the method is beneficial to heating to defrost the evaporator, and the temperature of the freezing storeroom is easily increased greatly, so that the storage quality of food in the freezing storeroom is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an evaporimeter is defroster and refrigeration plant in advance can cause the evaporimeter surface to frost when the return air in the refrigerator return air wind channel that exists among the prior art flows through the evaporimeter, leads to the technical problem that evaporimeter heat exchange efficiency descends. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of evaporimeter defroster in advance, including the condensation plate structure, wherein, the condensation plate structure sets up on refrigeration plant's return air passageway, through leading cold wind to the condensation plate structure is in order to be used for the condensation dehumidification processing in advance is carried out to the return air to the evaporimeter to the condensation plate structure.
Furthermore, the evaporator pre-defrosting device further comprises an air guide duct, the air guide duct is connected with a cold air duct of the refrigeration equipment, and partial cold air in the cold air duct can be guided to the condensation plate structure through the air guide duct.
Further, the structure of the condensation plate is one; or the condensation plate structure is more than two, and the condensation plate structure is distributed in sequence along the flowing direction of the return air in the return air channel.
Furthermore, a through hole is formed in the air return channel, the through hole is connected with the air guide duct, and each condensing plate structure corresponds to more than one through hole.
Further, the condensation plate structure is including the frost board that is used for return air condensation dehumidification, a plurality of return air through-holes that distribute on the frost board, return air in the return air passageway passes through the return air through-hole pass through the condensation plate structure.
Furthermore, the sizes of the air return through holes on the frosting plate are consistent; or more than two air return through holes with different diameters are formed in the frosting plate.
Further, the condensation plate structure further comprises a heating assembly for heating the frosting plate.
Furthermore, the angle of the frosting plate can be adjusted, and when the frosting plate rotates to the position where the frosting plate is at the position of reducing the wind resistance from the flowing direction of the return air in the return air channel, the frosting plate is attached to the heating surface of the heating assembly.
Furthermore, the condensation plate structure still includes driving motor, driving motor sets up outside the return air passageway just driving motor's pivot is inserted the return air passageway with frosting board is connected.
Furthermore, the heating assembly comprises an upper heating plate and a lower heating plate, the upper heating plate and the lower heating plate are sequentially distributed along the flowing direction of return air in the return air channel, and when the frosting plate is perpendicular to the flowing direction of the return air in the return air channel, the frosting plate, the upper heating plate and the lower heating plate are in a cross structure; when the frosting plate is rotated by 90 degrees by being perpendicular to the flowing direction of the return air in the return air channel, the upper heating plate and the lower heating plate are respectively arranged at the left side and the right side of the frosting plate, and the upper heating plate and the lower heating plate are both attached to the frosting plate.
Furthermore, one side of the lower heating plate, which is far away from the upper heating plate, is provided with a water receiving hook, the bearing surface of the water receiving hook faces the upper heating plate, and the bearing surface of the water receiving hook is obliquely arranged from one end to the other end.
The utility model provides a refrigeration plant, include the evaporimeter defroster in advance.
Further, the refrigeration equipment is a refrigerator.
The utility model provides an evaporimeter defroster in advance, including the condensation plate structure, the condensation plate structure sets up on refrigeration plant's return air passageway, carries out condensation dehumidification in advance to the return air that flows to the evaporimeter through leading cold wind to the condensation plate structure in order to be used for the condensation plate structure. Because when leading cold wind to the condensation plate structure, can make the regional temperature that corresponds on the condensation plate structure reduce, when the lower region of return air process condensation plate structure upper temperature, can make the vapor in the return air take place the condensation, and then, reach the effect of dehumidification to the condition that minimizes the evaporimeter surface frosting improves the heat exchange efficiency of evaporimeter.
The utility model discloses preferred technical scheme can also produce following technological effect at least:
the evaporator pre-defrosting device also comprises an air guide duct, the air guide duct is connected with a cold air duct of the refrigeration equipment, and part of cold air in the cold air duct can be guided to the condensation plate structure through the air guide duct, so that the cold air in the cold air duct can be fully utilized;
the condensation plate structure further comprises a heating assembly, when the frosting plate dehumidifies return air, the frosting plate may be frosted, and the frosting seriously affects the return air condition of the refrigeration equipment, so that the heating assembly is additionally arranged for heating and defrosting the frosting plate;
the angle of the frosting plate can be adjusted, when the frosting plate is used for condensing and dehumidifying return air, the frosting plate is adjusted to enable the frosting plate to be perpendicular to the flowing direction of the return air in the return air channel, so that the condensation and dehumidification of the return air are facilitated; when the frosting plate needs to be defrosted, in order to reduce the influence of the heating assembly for heating the frosting plate on the return air, the frosting plate is rotated by 90 degrees, and then the frosting plate is defrosted along the flowing direction of the return air in the return air channel;
when the frosting plate is located at the position of reducing the wind resistance, the frosting plate is attached to the heating surface of the heating assembly, so that the frosting on the frosting plate can be removed quickly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a structure of a rear side of an air duct structure of a refrigerator in the prior art;
FIG. 2 is a front view of a prior art air duct structure of a refrigerator;
fig. 3 is a schematic view of a portion of an air duct structure of a refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a return air duct and a frost formation plate provided in an embodiment of the present invention (a heating assembly and a driving motor are not illustrated);
fig. 5 is a schematic view of an internal structure of a return air duct according to an embodiment of the present invention;
fig. 6 is a schematic front view of the inside of a return air duct provided by an embodiment of the present invention;
fig. 7 is a schematic view of a frosting plate connected to a driving motor according to an embodiment of the present invention;
fig. 8 is a schematic view illustrating a return air duct connected to an air guide duct according to an embodiment of the present invention.
FIG. 1-condenser plate configuration; 11-frosting plate; 111-return air through holes; 12-a drive motor; 13-upper heating plate; 14-lower heating plate; 141-water-receiving hook; 2-return air channel; 21-via holes; 3, an air guide duct; 4-an evaporator; 5-a fan assembly; 6-refrigerating return air inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides an evaporimeter defroster in advance, including condensation plate structure 1, wherein, condensation plate structure 1 sets up on refrigeration plant's return air passageway 2, through leading cold wind to condensation plate structure 1 in order to be used for condensation plate structure 1 to carry out condensation dehumidification in advance to the return air to the evaporimeter and handle. Because when leading cold wind to condensation plate structure 1, can make the regional temperature that corresponds on the condensation plate structure 1 reduce, when the lower region of return air process condensation plate structure 1 upper temperature, can make the vapor in the return air take place the condensation, and then, reach the effect of dehumidification to the condition that minimizes the evaporimeter surface and frost improves the heat exchange efficiency of evaporimeter.
The "directing cold air to the condensation plate structure 1" is specifically explained as follows: the evaporator pre-defrosting device further comprises an air guide duct 3, the air guide duct 3 is connected with a cold air duct of the refrigeration equipment, and partial cold air in the cold air duct can be guided to the condensation plate structure 1 through the air guide duct 3, so that the cold air in the cold air duct can be fully utilized.
The evaporator pre-defrosting device is also applied to a refrigerator, and is shown in fig. 1-2, which are schematic diagrams of an air duct structure of a conventional refrigerator. Referring to fig. 2, a refrigerating return air inlet 6 is shown, under the driving of a fan assembly 5, air in a refrigerating chamber enters a return air channel 2 through the refrigerating return air inlet 6, air in a freezing chamber enters the return air channel 2 through the refrigerating return air inlet, the return air flows to an evaporator 4 through the return air in the return air channel 2, and cold air refrigerated by the evaporator 4 flows into the freezing chamber and the refrigerating chamber through a freezing air channel and a refrigerating air channel respectively.
Referring to fig. 3, through addding wind guide channel 3 for the partial cold wind that passes through the evaporimeter passes through wind guide channel 3 flow direction condensation plate structure 1, realizes when the lower region of return air process condensation plate structure 1 upper temperature, can make the vapor in the return air take place the condensation. The specific shape and structure of the air guiding duct 3 are not limited, and it is sufficient to guide part of the cool air passing through the evaporator to the condensation plate structure 1.
In addition, it should be noted that "guiding the cold air to the condensation plate structure 1" is not limited to guiding a part of the cold air in the cold air duct of the refrigeration equipment to the condensation plate structure 1, and a refrigeration device may be additionally provided to the refrigeration equipment (refrigerator) to guide the cold air generated by the refrigeration device to the condensation plate structure 1. For example, the cold produced by the semiconductor chilling plates is directed to the condensation plate structure 1.
As an alternative embodiment, the condensation plate structure 1 is one; or, the number of the condensation plate structures 1 is more than two, and the condensation plate structures 1 are distributed in sequence along the flowing direction of the return air in the return air channel 2. Referring to fig. 3, two condensation plate structures 1 are illustrated, and the arrangement of two or more condensation plate structures 1 is beneficial to improving the dehumidification degree of return air.
The air return channel 2 is provided with a through hole 21, the through hole 21 is connected with the air guide duct 3, and each condensation plate structure 1 corresponds to more than one through hole 21. Referring to fig. 3 and 8, it can be seen that an air guide duct 3 is disposed on the left side of the condensation plate structure 1, and cold air in the air guide duct 3 is blown to the corresponding condensation plate structure 1 through branch duct pipes of the air guide duct 3.
The structure of the condensation plate structure 1 is as follows: condensation plate structure 1 is including being used for the dehumidification of return air condensation to frost board 11, and a plurality of return air through-holes 111 distribute on the frost board 11, and the return air in the return air passageway 2 passes through condensation plate structure 1 through return air through-hole 111, but metal material such as aluminium can be selected to the material of frost board 11. Referring to fig. 4, the frosting plate 11 in the return air channel 2 is shown, the cold air in the air guiding duct 3 is blown to the frosting plate 11, and the water vapor in the return air is condensed and frosted on the frosting plate 11. Regarding the return air through holes 111 on the frosting plate 11, the return air through holes 111 on the frosting plate 11 are uniform in size, for example, the return air through holes 111 on the frosting plate 11 may be round holes, elliptical holes, square holes or the like with uniform size; alternatively, the frost forming plate 11 is provided with two or more kinds of return air through holes 111 having different diameters. Referring to fig. 7, it is shown that the return air through holes 111 with two diameters are provided on the frost forming plate 11. The air return through holes 111 with two diameters may be distributed as shown in fig. 7, or the air return through holes 111 with a larger diameter and the air return through holes 111 with a smaller diameter may be sequentially distributed at intervals, or of course, other distribution may be used.
The water vapor in the refrigerating chamber can be taken away by the return air, the high-humidity gas with relatively high temperature (about 4 ℃) flowing out of the refrigerating chamber can frost when meeting the pre-refrigerated frosting plate 11 (about minus 10 ℃) in the return air channel 2, so that the air humidity is reduced, and the humidity of the air flowing through the evaporator can be fully reduced through more than two frosting plates 11, so that the evaporator is prevented from frosting.
Regarding the outer contour shape and size of the frost plate 11, referring to fig. 7, the outer contour shape of the frost plate 11 matches the cross-sectional shape of the channel in the return air duct 2, so that the return air passes through the frost plate 11 substantially through the return air through hole 111 of the frost plate 11.
As an alternative embodiment, the condensation plate structure 1 further comprises a heating assembly for heating the frost formation plate 11. When the frosting plate 11 dehumidifies the return air, the frosting plate 11 may have a frosting condition, and the frosting condition seriously affects the return air condition of the refrigeration equipment, so that the heating assembly is additionally arranged for heating and defrosting the frosting plate 11.
Preferably, the angle of the frost formation plate 11 is adjustable, and when the frost formation plate 11 is rotated from being perpendicular to the flowing direction of the return air in the return air channel 2 to the position where the frost formation plate 11 is at a reduced wind resistance, the frost formation plate 11 is attached to the heating surface of the heating assembly. When the frosting plate 11 is used for condensing and dehumidifying the return air, the frosting plate 11 is adjusted to enable the frosting plate 11 to be perpendicular to the flowing direction of the return air in the return air channel 2; when the frosting plate 11 needs to be defrosted, in order to reduce the influence of the heating assembly heating frosting plate 11 on the return air, the frosting plate 11 is rotated by about 90 degrees (at this time, the frosting plate 11 is at a position for reducing the wind resistance), and the frosting plate 11 defrosts the frosting plate 11 along the flowing direction of the return air in the return air channel 2. When the frosting plate 11 is at the position for reducing the wind resistance, the frosting plate 11 is attached to the heating surface of the heating assembly, so that the frosting on the frosting plate 11 can be removed quickly.
Regarding the "adjustable angle of the frosting plate 11", a specific implementation manner is as follows, referring to fig. 7, the condensation plate structure 1 further includes a driving motor 12, the driving motor 12 is disposed outside the air return channel 2, and a rotating shaft of the driving motor 12 is inserted into the air return channel 2 and connected with the frosting plate 11, the rotating shaft of the driving motor 12 is connected with a middle area of the frosting plate 11, and when the driving motor 12 acts, the frosting plate 11 can be driven to rotate by taking the rotating shaft as a central axis.
Referring to fig. 6, the heating assembly includes an upper heating plate 13 and a lower heating plate 14, the upper heating plate 13 and the lower heating plate 14 are sequentially distributed along the flow direction of the return air in the return air channel 2, and when the frosting plate 11 is in the direction perpendicular to the flow direction of the return air in the return air channel 2, the frosting plate 11, the upper heating plate 13 and the lower heating plate 14 are in a cross-shaped structure; when the frosting plate 11 rotates 90 degrees from the flowing direction vertical to the return air in the return air channel 2, the upper heating plate 13 and the lower heating plate 14 are respectively arranged at the left side and the right side of the frosting plate 11, and the upper heating plate 13 and the lower heating plate 14 are respectively attached to the frosting plate 11. Referring to fig. 6, two condensation plate structures 1 are shown, the condensation plate structure 1 is arranged below, the frosting plate 11 is in a direction perpendicular to the flow direction of the return air in the return air channel 2, and at this time, the frosting plate 11, the upper heating plate 13 and the lower heating plate 14 are in a cross-shaped structure; when the frost formation plate 11 is at a position of reducing the wind resistance (see fig. 6, the frost formation plate 11 at a position perpendicular to the flow direction of the return air in the return air duct 2 is rotated clockwise by 90 ° and then is at a position of reducing the wind resistance), the frost formation plate 11 of the condensation plate structure 1 disposed above in fig. 6 is at a position of reducing the wind resistance, and the frost formation plate 11 follows the flow direction of the return air in the return air duct 2.
Electric heating wires are arranged on the upper heating plate 13 and the lower heating plate 14, and the upper heating plate 13 and the lower heating plate 14 are electrified to heat the frosting plate 11.
Preferably, a water receiving hook 141 is disposed on a side of the lower heating plate 14 away from the upper heating plate 13, a receiving surface (receiving surface capable of receiving frost) of the water receiving hook 141 faces the upper heating plate 13, the receiving surface of the water receiving hook 141 is inclined from one end to the other end, and a lower end of the receiving surface is connected to an inner side wall surface of the return air channel 2 or a gap is formed between the lower end of the receiving surface and the inner side wall surface of the return air channel 2. Referring to fig. 6, a water receiving hook 141 on the lower heating plate 14 is illustrated, the defrosting water on the defrosting plate 11 flows to the water receiving hook 141 along the defrosting plate 11, and because the receiving surface of the water receiving hook 141 is inclined from one end to the other end, the defrosting water on the water receiving hook 141 can be guided to the inner side wall surface of the return air channel 2, so that the defrosting water is guided to a water receiving tray in the refrigeration equipment along the inner side wall surface of the return air channel 2.
The utility model provides a refrigeration plant, includes the utility model provides an evaporimeter defroster in advance, refrigeration plant can be the refrigerator. The evaporator pre-defrosting device comprises a condensation plate structure 1, wherein the condensation plate structure 1 is arranged on an air return channel 2 of the refrigerator, and cold air is guided to the condensation plate structure 1 to be used for the condensation plate structure 1 to pre-condense and dehumidify the air return flowing to the evaporator. Because when leading cold wind to condensation plate structure 1, can make the regional temperature that corresponds on the condensation plate structure 1 reduce, when the return air passes through the lower region of temperature on the condensation plate structure 1, can make the vapor in the return air take place the condensation, and then, reach the effect of dehumidification to minimize the condition that the evaporimeter surface frosted, improve the heat exchange efficiency of evaporimeter.
The evaporator pre-defrosting device further comprises an air guide duct 3, the air guide duct 3 is connected with a cold air duct of the refrigerator, and part of cold air in the cold air duct can be guided to the condensation plate structure 1 through the air guide duct 3, so that the cold air in the cold air duct can be fully utilized.
A method of pre-defrosting using an evaporator pre-defrost device, comprising: the cold air flow direction is controlled to the condensation plate structure 1, so that the return air flowing to the evaporator is subjected to condensation dehumidification in advance through the condensation plate structure 1. Because when leading cold wind to condensation plate structure 1, can make the regional temperature that corresponds on the condensation plate structure 1 reduce, when the lower region of return air process condensation plate structure 1 upper temperature, can make the vapor in the return air take place the condensation, and then, reach the effect of dehumidification to the condition that minimizes the evaporimeter surface and frost improves the heat exchange efficiency of evaporimeter.
Control cold wind flow direction condensation plate structure 1, specific content is as follows: part cold wind flow direction condensation plate structure 1 in the control refrigeration plant cold wind channel is through addding wind-guiding wind channel 3 promptly for the part cold wind through the evaporimeter flows to condensation plate structure 1 through wind-guiding wind channel 3, can make full use of the cold wind in the cold wind channel. Regarding the "guiding the cold wind to the condensation plate structure 1", not only the part of the cold wind channel of the refrigeration equipment is guided to the condensation plate structure 1, but also a refrigeration device is additionally arranged on the refrigeration equipment (refrigerator) to guide the cold wind generated by the refrigeration device to the condensation plate structure 1. For example, the cooling energy generated by the semiconductor cooling fins is guided to the condensation plate structure 1.
Specifically, the frosting state on the condensation plate structure 1 is detected; judge whether the condensation plate structure 1 satisfies the defrosting condition, if unsatisfied, then with the partial cold wind direction condensation plate structure 1 in the cold wind channel, if satisfy, stop to lead to cold wind to condensation plate structure 1, condensation plate structure 1 heats the defrosting and handles.
An air valve is arranged on the air guide duct 3, each condensing plate structure 1 corresponds to one air valve, whether the condensing plate structure 1 meets the defrosting condition or not is judged, if not, the air valve corresponding to the condensing plate structure 1 is opened, the opening degree of the air valve is adjusted, and part of cold air in the cold air duct is guided to the condensing plate structure 1; if the condensation plate structure 1 meets the defrosting condition, the air valve corresponding to the condensation plate structure 1 is closed, cold air is stopped to be sent to the condensation plate structure 1, and heating and defrosting treatment is carried out on the condensation plate structure 1.
The heating and defrosting treatment of the condensation plate structure 1 specifically comprises the following steps: the frosting plate 11 of the condensation plate structure 1 is controlled to rotate, so that the frosting plate 11 rotates to a position where the frosting plate 11 is at a position of reducing wind resistance from a direction perpendicular to the flowing direction of return air in the return air channel 2; the heating assembly of the condensation plate structure 1 is started to heat the frost plate 11. After defrosting is finished (heating of the heating assembly is carried out for a certain period of time, defrosting can be considered to be finished), the heating assembly is closed, the frosting plate 11 is controlled to reset, namely, the frosting plate 11 is controlled to rotate to the direction perpendicular to the flowing direction of return air in the return air channel 2, and then the air valve corresponding to the condensation plate structure 1 is opened.
As an alternative embodiment, there are more than two condensation plate structures 1, and at least one condensation plate structure 1 is controlled to perform pre-condensation dehumidification treatment on the return air flowing to the evaporator.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (13)
1. An evaporator pre-defrost device, characterized in that it comprises a condensation plate structure (1), wherein,
condensation plate structure (1) sets up on refrigeration plant's return air passageway (2), through directing cold wind to condensation plate structure (1) is in order to be used for condensation dehumidification processing in advance is carried out to the return air to the evaporimeter in condensation plate structure (1).
2. The evaporator pre-defrosting device according to claim 1, further comprising an air guiding duct (3), wherein the air guiding duct (3) is connected to a cool air duct of the refrigeration equipment, and a part of cool air in the cool air duct can be guided to the condensation plate structure (1) through the air guiding duct (3).
3. Evaporator pre-defrost device according to claim 2, characterized in that the condenser plate structure (1) is one; or, the condensation plate structure (1) is more than two, and the condensation plate structure (1) is distributed in sequence along the flowing direction of the return air in the return air channel (2).
4. The evaporator pre-defrosting device according to claim 3, wherein a via hole (21) is formed in the return air duct (2), the via hole (21) is connected with the air guide duct (3), and each of the condenser plate structures (1) corresponds to more than one via hole (21).
5. The evaporator pre-defrosting device according to any one of claims 1 to 4, characterized in that the condenser plate structure (1) comprises a frosting plate (11) for dehumidifying the return air by condensation, a plurality of return air through holes (111) are distributed on the frosting plate (11), and the return air in the return air channel (2) flows through the condenser plate structure (1) through the return air through holes (111).
6. The evaporator pre-defrost device as claimed in claim 5, characterized in that the return air through holes (111) on the frost plate (11) are uniform in size; or more than two air return through holes (111) with different diameters are arranged on the frost forming plate (11).
7. Evaporator pre-defrost device according to claim 5, characterized in that the condensation plate structure (1) further comprises a heating assembly for heating the frost plate (11).
8. The evaporator pre-defrost device as claimed in claim 7 wherein the angle of the frost plate (11) is adjustable, the frost plate (11) engaging the heating surface of the heating assembly when the frost plate (11) is rotated from perpendicular to the direction of flow of return air in the return air duct (2) to a position where the frost plate (11) is in a reduced windage position.
9. The evaporator pre-defrosting device according to claim 8, wherein the condensation plate structure (1) further comprises a driving motor (12), the driving motor (12) is arranged outside the return air channel (2) and a rotating shaft of the driving motor (12) is inserted into the return air channel (2) to be connected with the frosting plate (11).
10. The evaporator pre-defrost device according to claim 8 or 9, characterized in that the heating assembly comprises an upper heating plate (13) and a lower heating plate (14), the upper heating plate (13) and the lower heating plate (14) being distributed in sequence along the flow direction of the return air in the return air channel (2), the frosting plate (11), the upper heating plate (13) and the lower heating plate (14) having a cross-like structure when the frosting plate (11) is in a direction perpendicular to the flow direction of the return air in the return air channel (2); when frosting board (11) is by the perpendicular to the flow direction of return air in return air passageway (2) plays rotatory 90 when, go up hot plate (13) with hot plate (14) down set up respectively frosting board (11) the left and right sides just go up hot plate (13) with hot plate (14) down all with frosting board (11) are laminated mutually.
11. Evaporator pre-defrost device according to claim 10, characterized in that a side of the lower heating plate (14) facing away from the upper heating plate (13) is provided with a water receiving hook (141), a receiving surface of the water receiving hook (141) faces towards the upper heating plate (13), and a receiving surface of the water receiving hook (141) is arranged obliquely from one end to the other end.
12. A refrigeration apparatus comprising the evaporator pre-defrost device of any one of claims 1-11.
13. A cold appliance according to claim 12, wherein the cold appliance is a refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279837.0U CN218001926U (en) | 2022-05-25 | 2022-05-25 | Evaporator pre-defrosting device and refrigeration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279837.0U CN218001926U (en) | 2022-05-25 | 2022-05-25 | Evaporator pre-defrosting device and refrigeration equipment |
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| CN218001926U true CN218001926U (en) | 2022-12-09 |
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| CN202221279837.0U Active CN218001926U (en) | 2022-05-25 | 2022-05-25 | Evaporator pre-defrosting device and refrigeration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877599A (en) * | 2022-05-25 | 2022-08-09 | 珠海格力电器股份有限公司 | Evaporator pre-defrosting device, refrigeration equipment and method |
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2022
- 2022-05-25 CN CN202221279837.0U patent/CN218001926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877599A (en) * | 2022-05-25 | 2022-08-09 | 珠海格力电器股份有限公司 | Evaporator pre-defrosting device, refrigeration equipment and method |
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