Evaporator assembly and refrigerator

Abstract

The utility model relates to the technical field of refrigeration, and discloses an evaporator assembly and a refrigerator. The evaporator assembly comprises an evaporator which comprises an evaporation pipeline distributed in a snakelike mode; the metal plates are attached to the front and rear surfaces of the evaporator respectively; the heating wire assembly heats the metal plate and the side face of the evaporator. The evaporator is defrosted through the combination of the aluminum plate and the heating wire assembly, the defrosting effect is improved, and then the refrigerating effect of the refrigerator is improved.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, for example, to an evaporator assembly and a refrigerator. Background Art

[0002] At present, the evaporator of the refrigerator has high power and severe frost, which affects the refrigeration effect.

[0003] In the related art, a high-voltage steel tube heating wire or an aluminum tube heating wire is placed at the bottom of the evaporator for defrosting.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] This defrosting method requires high power and takes a long time to defrost, which is not conducive to preserving the freshness of food in the refrigerator, and affects the energy consumption of the refrigerator, resulting in a waste of energy.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide an evaporator assembly and a refrigerator to solve the problem of poor defrosting effect of the refrigerator evaporator.

[0009] According to the first aspect of the utility model, an evaporator assembly is provided, comprising: an evaporator including a serpentine-shaped evaporation pipeline; metal plates respectively attached to the front and rear surfaces of the evaporator; and a heating wire assembly respectively heating the metal plates and the sides of the evaporator.

[0010] Optionally, the metal plate includes one or more of stainless steel, cast aluminum, cast iron, and cast copper.

[0011] Optionally, the heating wire assembly includes: an etched heating wire, and / or a steel tube heating wire.

[0012] Optionally, when the heating wire assembly includes an etching heating wire and a steel tube heating wire, the etching heating wire is attached to the outer side of the metal plate, and the steel tube heating wire is arranged at the side end of the evaporator.

[0013] Optionally, part of the steel tube heating wires are arranged between the evaporation pipeline and the bottom of the evaporator shell, and the steel tube heating wires are distributed in a serpentine shape.

[0014] Optionally, the evaporator assembly further includes: a bracket for fixing the evaporation pipeline; the steel pipe heating wire is fixed to the bracket by a clamp.

[0015] Optionally, the metal plate is a polygonal plate, and the etching heating wire is arranged along the edge of the aluminum plate and around the aluminum plate.

[0016] Optionally, the evaporator assembly further includes: an etching heating wire temperature detector, which is disposed in the middle of the aluminum plate and is used to monitor the temperature around the etching heating wire.

[0017] Optionally, the evaporator assembly further includes: a power control board, which is used to be connected to the etching heating wire separately and is used to control the heating power of the etching heating wire.

[0018] Optionally, the evaporator assembly further includes: a defrost sensor, which is arranged at the top of the evaporator.

[0019] In some embodiments, the metal plate is a rectangular plate, and the periphery of the metal plate is fixed to the evaporator casing so that there is a certain distance between the metal plate and the front and rear sides of the evaporation pipeline, so that the heat of the metal plate can heat the air between the metal plate and the evaporation pipeline to form hot air with uniform temperature, so as to evenly defrost the evaporation pipeline.

[0020] In some embodiments, the metal plates are enclosed by side surfaces to form a fence with upper and lower openings to enclose the evaporation pipeline, and the evaporation pipeline is located in the middle of the fence enclosed by the metal plates. A heating wire is wrapped around the outer surface of the metal plate, and the metal plate fence is heated by the heating wire to form a high-temperature space inside the fence to defrost the evaporation pipeline.

[0021] In some embodiments, the evaporation pipeline is distributed below the evaporation pipeline in the form of a grid plate, wherein the plate surface of the grid plate faces the lower end surface of the evaporation pipeline.

[0022] In some embodiments, the steel pipe heating wire is fixedly connected to the base frame by a clamp to fix the position of the bottom end of the steel pipe heating wire.

[0023] In some embodiments, the material of the clamp is one of cast aluminum, cast copper, and cast steel, or the clamps are made of several materials to fix the evaporation pipeline and the steel pipe heating wire.

[0024] In some embodiments, the shape of the metal plate includes: polygonal, circular or irregular.

[0025] In some embodiments, the etched heating wires are distributed on the surface of the metal plate, and the distribution forms include serpentine or spaced strip distribution or ring distribution.

[0026] In some embodiments, there are multiple etching heating wire detectors, which are respectively arranged around the metal plate to detect defrosting conditions from different positions. When the detection results of multiple etching heating wires are different, the lowest temperature is used as the reference temperature.

[0027] According to a second aspect of the utility model, a refrigerator is provided, comprising: an evaporator assembly as described in any one of the above embodiments.

[0028] In some embodiments, the evaporator assembly is applied to a deep-cold area, wherein the deep-cold area uses a low-temperature refrigerant. In the case of severe frost on the evaporator, the surface frost on the evaporation pipeline can be quickly defrosted by adjusting the power of the etching heating wire.

[0029] In some embodiments, the evaporator assembly provided in the embodiments of the present disclosure may be applied to a refrigerator or other refrigeration equipment.

[0030] An evaporator assembly and a refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0031] By utilizing an aluminum plate and a heating wire assembly in combination to defrost the evaporator, the defrosting effect is improved, thereby improving the refrigeration effect of the refrigerator.

[0032] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0034] Figure 1 is a structural schematic diagram of an evaporator assembly provided by an embodiment of the present disclosure from one perspective;

[0035] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0036] Figure 3 It is a schematic diagram of the installation structure of the metal plate and the etching heating wire provided by an embodiment of the present disclosure;

[0037] Figure 4 It is a structural schematic diagram of an evaporator assembly from another perspective provided by another embodiment of the present disclosure.

[0038] Reference numerals:

[0039] 10: evaporator assembly; 11: evaporator; 12: metal plate; 13: heating wire assembly; 131: etching heating wire; 132: steel pipe heating wire; 14: bracket; 15: evaporation pipeline; 16: etching heating wire temperature monitor; 17: defrost sensor. DETAILED DESCRIPTION

[0040] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0041] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0042] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0043] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] Unless otherwise stated, the term "plurality" means two or more.

[0045] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0046] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0048] At present, the evaporator of the refrigerator has high power and severe frost, which affects the refrigeration effect.

[0049] In the related art, a strong electric steel tube heating wire or an aluminum tube heating wire is placed at the bottom of the evaporator for defrosting. This defrosting method has high power and a long defrosting time, which is not conducive to the preservation of food in the refrigerator, and affects the energy consumption of the refrigerator, resulting in energy waste.

[0050] The present application defrosts the evaporator by combining an aluminum plate and a heating wire assembly, thereby improving the defrosting effect and thus improving the refrigeration effect of the refrigerator.

[0051] Combination Figures 1 to 4 As shown, the embodiment of the present disclosure provides an evaporator assembly 10 including an evaporator 11, a metal plate 12 and a heating wire assembly 13. The evaporator 11 includes a serpentine evaporation pipeline 15; the metal plate 12 is respectively attached to the front and rear surfaces of the evaporator 11; and the heating wire assembly 13 heats the metal plate 12 and the side of the evaporator 11 respectively.

[0052] like Figure 1 and Figure 2 As shown, the evaporator 11 includes a serpentine-shaped evaporation pipeline 15, the liquid inlet of the evaporation pipeline 15 is located at the bottom, and the liquid outlet is located at the top. The evaporation pipeline 15 is installed in a rectangular distribution. Figure 1 It is a front side view of the evaporator assembly 10. The front and rear sides of the evaporation pipeline 15 are covered with metal plates 12. The metal plates 12 are connected with heating wires, so that the metal plates 12 on the front and rear sides of the evaporation pipeline 15 can generate heat and conduct it to the evaporation pipeline 15 to defrost the evaporation pipeline 15. Some heating wires are arranged at the side ends of the evaporation pipeline 15, between the metal plates 12 on the front and rear sides, and fit with the evaporation pipeline 15 to defrost the side ends of the evaporation pipeline 15.

[0053] In some embodiments, the metal plate 12 is a rectangular plate, and the periphery of the metal plate 12 is fixed to the outer shell of the evaporator 11 so that there is a certain distance between the metal plate 12 and the front and rear sides of the evaporation pipe 15, so that the heat of the metal plate 12 can heat the air between the metal plate 12 and the evaporation pipe 15 to form hot air with uniform temperature, so as to evenly defrost the evaporation pipe 15.

[0054] In some embodiments, the metal plate 12 is enclosed by the side to form a fence with upper and lower openings, enclosing the evaporation pipeline 15, and the evaporation pipeline 15 is located in the middle of the fence enclosed by the metal plate 12. The outer surface of the metal plate 12 is wrapped with a heating wire, and the fence of the metal plate 12 is heated by the heating wire to form a high-temperature space inside the fence to defrost the evaporation pipeline 15.

[0055] Optionally, the metal plate 12 includes one or more of stainless steel, cast aluminum, cast iron, and cast copper.

[0056] The stainless steel plate is made of metal on the outside, which is resistant to dry burning and corrosion, and can increase the service life of the metal plate 12; the cast aluminum plate has a large heat exchange area, which accelerates the heat exchange speed and has high efficiency; and the cast aluminum plate has a long heating time and more complete heat transfer; the cast iron plate has a low price and can achieve the lowest cost. The cast copper plate is not easy to oxidize, not easy to corrode, durable, and can increase the service life.

[0057] Optionally, the heating wire assembly 13 includes: an etching heating wire 131 , and / or a steel tube heating wire 132 .

[0058] The upper part of the evaporator 11 is heated and defrosted. Since it takes a long time for the heat of the steel pipe heating wire 132 to be transferred from the bottom to the top, the etching heating wire 131 wrapped around the evaporator 11 is opened for heating during defrosting. When the upper defrosting sensor 17 senses a certain temperature, the defrosting is exited. In this way, the defrosting can be completed efficiently and quickly, which is conducive to reducing energy consumption. The etching heating wire 131 is a thin film heating wire of a new material with high heating efficiency. The etching heating wire 131 is controlled by a variable power supply on the power control board. For example, the power supply part can be set to output between 12V-20V. The heating wire can change the power and heating temperature according to the output of the power supply, so as to perform defrosting in real time according to the frosting situation, which is conducive to reducing energy consumption. At the beginning of the work, it runs at the lowest voltage. The etching heating wire 131 temperature feedback sensor feeds back the temperature around the upper part of the evaporator 11 to the main control board in real time. If the temperature does not change much, the power board increases the voltage of the heating wire at a certain rate until the preset temperature increase efficiency is reached, thereby achieving effective defrosting.

[0059] Optionally, when the heating wire assembly 13 includes the etching heating wire 131 and the steel tube heating wire 132 , the etching heating wire 131 is attached to the outer side of the metal plate 12 , and the steel tube heating wire 132 is arranged at the side end of the evaporator 11 .

[0060] like Figure 1 , Figure 2 and Figure 4 As shown, a new structure of a metal plate 12 is provided on the front and rear surfaces of the evaporation pipeline 15, and is combined with an etching heating wire 131 for defrosting; at the same time, a defrosting method combining a steel pipe heating wire 132 and an etching heating wire 131 is used. The etching heating wire 131 is distributed on the outer surface of the metal plate 12, and heats the metal plate 12 to indirectly defrost the evaporation pipeline 15. The steel pipe heating wire 132 is provided at the side end of the evaporation pipeline 15 due to its high heating intensity and invariable heating temperature and power, to assist the metal plate 12 in defrosting the evaporation pipeline 15.

[0061] Optionally, part of the steel tube heating wires 132 are arranged between the evaporation pipeline 15 and the bottom of the evaporator 11 shell, and the steel tube heating wires 132 are distributed in a serpentine shape.

[0062] like Figure 2 As shown, the evaporation pipeline 15 is serpentinely distributed above the steel pipe heating wire 132, and the steel pipe heating wire 132 extends downward from the side end of the evaporation pipeline 15 to the bottom of the evaporation pipeline 15 and is serpentinely distributed downward in sequence with the lower end of the evaporation pipeline 15.

[0063] In some embodiments, the evaporation pipeline 15 is distributed below the evaporation pipeline 15 in the form of a grid plate, wherein the plate surface of the grid plate faces the lower end surface of the evaporation pipeline 15 .

[0064] Optionally, the evaporator assembly 10 further includes a bracket 14. The bracket 14 is used to fix the evaporation pipeline 15; the steel pipe heating wire 132 is fixed to the bracket 14 through a clamp.

[0065] like Figure 1 As shown, the bracket 14 includes a base frame and side frames located on both sides of the base frame, the side frames are supported upward by the two sides of the base frame, and the evaporation pipeline 15 is fixed between the side frames on both sides by a clamp, and the lower end of the evaporation pipeline 15 has a certain gap from the base frame. The steel pipe heating wire 132 is also fixed to the side frame by a clamp. The steel pipe heating wire 132 partially extends downward along the side end of the evaporation pipeline 15 to the gap between the lower end of the evaporation pipeline 15 and the base frame, and the steel pipe heating wire 132 is adjacent to the evaporation pipeline 15 at the lower end of the evaporation pipeline 15. Among them, the clamp includes multiple clamps, and the multiple clamps are arranged in sequence in the vertical direction to fix the side end of the evaporation pipeline 15 with the side frame, and to fix the steel pipe heating wire 132 with the side frame. The lower end of the steel pipe heating wire 132 abuts against the upper end of the base frame and is supported by the base frame.

[0066] In some embodiments, the steel pipe heating wire 132 is fixedly connected to the base frame via a clamp to fix the position of the bottom end of the steel pipe heating wire 132 .

[0067] In some embodiments, the material of the clamp is one of cast aluminum, cast copper, and cast steel, or the clamps are made of several materials to fix the evaporation pipeline 15 and the steel pipe heating wire 132.

[0068] Optionally, the metal plate 12 is a polygonal plate, and the etching heating wire 131 is arranged along the edge of the aluminum plate and around the aluminum plate.

[0069] like Figure 3 and Figure 4 As shown, the metal plate 12 is a polygonal thin plate, including an aluminum plate, a copper plate, a steel plate, or an iron plate. The etching heating wire 131 is attached to the edge of the metal plate 12 and distributed along the outer edge contour of the metal plate 12.

[0070] In some embodiments, the etching heating wires 131 are distributed on the surface of the metal plate 12 in a serpentine or spaced strip distribution or an annular distribution.

[0071] In some embodiments, the metal plate 12 has a shape including polygonal, circular, or irregular.

[0072] Optionally, the evaporator assembly 10 further includes an etching heating wire temperature detector 16. The etching heating wire temperature detector 16 is disposed in the middle of the aluminum plate and is used to monitor the ambient temperature of the etching heating wire 131.

[0073] like Figure 1 As shown, the temperature detector of the etching heating wire 131 is arranged in the middle of the aluminum plate in the vertical direction or in the middle of the aluminum plate in the horizontal direction, and is adjacent to the etching heating wire 131 to detect the temperature change of the surrounding evaporation pipeline 15 after the etching heating wire 131 is heated, so as to determine the power adjustment of the etching heating wire 131.

[0074] In some embodiments, there are multiple detectors of the etching heating wire 131, which are respectively arranged around the metal plate 12 to detect the defrosting condition from different positions. When the detection results of multiple etching heating wires 131 are different, the lowest temperature is used as the reference temperature.

[0075] Optionally, the evaporator assembly 10 further includes a power control board. The power control board is used to communicate with the etching heating wire 131 separately to control the heating power of the etching heating wire 131.

[0076] The power control board is connected to the etching heating wire 131, the etching heating wire 131 temperature detector and the variable power supply. When the temperature detected by the etching heating wire 131 detector meets the defrosting temperature, the power control board controls the etching heating wire 131 to start heating. When the defrosting speed after the etching heating wire 131 is heated according to the minimum power does not meet the defrosting requirement, the power control board controls to increase the heating power of the etching heating wire 131 to increase the heating temperature of the etching heating wire 131. When the defrosting requirement is completed, the power control board controls to turn off the etching heating wire 131 to stop heating after receiving the temperature information detected by the etching heating wire 131 detector. At the same time, the steel pipe heating wire 132 stops heating. The power of the heating wire is adjusted in real time by controlling the variable power supply through the power control board, and the power is adjusted according to the amount of frost to effectively defrost. The whole scheme is conducive to the refrigerator to quickly complete defrosting and reduce energy consumption.

[0077] Optionally, the evaporator assembly 10 further includes a defrost sensor 17. The defrost sensor 17 is disposed at the top of the evaporator 11.

[0078] The defrost sensor 17 can detect the defrost progress and determine the defrost process, so that after the defrost is completed, the defrost situation can be transmitted to the control system in time, and the heating can be stopped in time to reduce energy consumption.

[0079] In some embodiments, defrosting the evaporator 11 includes the following steps:

[0080] S1. Obtain the temperature T1 of the temperature sensor at the upper end of the evaporation pipeline 15.

[0081] S2. When T1<T, the etching heating wire 131 is turned on to heat the metal plate 12, and the etching heating wire 131 is heated at the lowest voltage, wherein T is a preset temperature.

[0082] S3, obtaining the temperature rise rate V1 of the upper end of the evaporation pipeline 15, and when V1 is less than V, adjusting and increasing the power of the etching heating wire 131, and simultaneously turning on the steel pipe heating wire 132 for heating, wherein V is the preset temperature rise rate.

[0083] Among them, V can be calculated by timing detection to obtain the temperature rise value per unit time.

[0084] According to a second aspect of the utility model, a refrigerator is provided, comprising: an evaporator assembly 10 as in any one of the above embodiments.

[0085] The refrigerator provided by the embodiment of the present disclosure includes the evaporator assembly 10 of any one of the above embodiments, and thus has all the benefits of the evaporator assembly 10 of any one of the above embodiments, which will not be described in detail here.

[0086] It can be understood that the evaporator assembly 10 in the embodiment of the present disclosure can be arranged corresponding to the freezing chamber to improve the freezing effect.

[0087] In some embodiments, the evaporator assembly 10 is applied to a deep-cold area, wherein the deep-cold area uses a low-temperature refrigerant. When the evaporator 11 is severely frosted, the surface frost of the evaporation line 15 can be quickly defrosted by adjusting the power of the etching heating wire 131.

[0088] In some embodiments, the evaporator assembly 10 provided in the embodiments of the present disclosure may be applied to a refrigerator or other refrigeration equipment.

[0089] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments.

[0090] Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings.

[0091] In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or groups thereof. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method or device that includes the elements.

[0092] In this article, each embodiment may focus on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts may refer to the description of the method part.

[0093] The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An evaporator assembly, characterized in that: include: An evaporator, including a serpentine-shaped evaporation pipeline; Metal plates are respectively attached to the front and rear surfaces of the evaporator; A heating wire assembly heats the metal plate and the side of the evaporator respectively; The heating wire assembly comprises an etched heating wire and a steel tube heating wire. The etched heating wire is attached to the outer side of the metal plate, and the steel tube heating wire is arranged at the side end of the evaporator.

2. The evaporator assembly according to claim 1, characterized in that The metal plate includes one or more of stainless steel, cast aluminum, cast iron and cast copper.

3. The evaporator assembly according to claim 1, characterized in that Some of the steel pipe heating wires are arranged between the evaporation pipeline and the bottom of the evaporator shell, and the steel pipe heating wires are distributed in a serpentine shape.

4. The evaporator assembly according to claim 1, characterized in that Also includes: Bracket, used to fix the evaporation pipeline; The steel pipe heating wire is fixed to the bracket through a clamp.

5. The evaporator assembly according to claim 1, characterized in that The metal plate is a polygonal plate, and the etching heating wire is arranged along the edge of the aluminum plate and around the aluminum plate.

6. The evaporator assembly according to claim 1, characterized in that Also includes: The etching heating wire temperature detector is located in the middle of the aluminum plate and is used to monitor the temperature around the etching heating wire.

7. The evaporator assembly according to claim 3, characterized in that Also includes: The defrost sensor is located at the top of the evaporator.

8. A refrigerator, characterized in that: include: An evaporator assembly as claimed in any one of claims 1 to 7.

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