Plate-type evaporator and refrigerator

Abstract

The utility model discloses a plate-type evaporator and a refrigerator, the plate-type evaporator comprises a plate body and a pipe body, the plate body is made of a material with heat-conducting property, at least part of the pipe body is fixed with the plate body, and the part of the pipe body connected with the plate body extends in a plate body cavity or on a plate body surface in a curve manner. The pipe body is directly fixed on the plate body capable of conducting heat, when the evaporator is used, if the plate body is attached to an object to be cooled, heat borne by the plate body is transferred to a refrigerant flowing through the pipe body, the heat exchange area is enlarged through curve extension, and the evaporator is simplified in structure, high in heat exchange efficiency, convenient to assemble and form and beneficial to cost reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation devices, in particular to a plate evaporator and a refrigerator. Background Art

[0002] A refrigerator generally includes functional mechanisms such as a compressor, a condenser, a capillary tube, an evaporator, etc. For the evaporator among them, such as a common plate heat exchanger, specifically the plate heat exchanger described in CN108571908A, the defects of the existing plate heat exchanger are as follows: First, the structure is complex, resulting in low efficiency and high cost in assembling and forming; Second, the area of the plate heat exchanger cannot be made very large because the increase in the heat exchange area leads to a decrease in the heat exchange amount per unit area and a reduction in the heat exchange efficiency, which needs to be improved. Content of the Utility Model

[0003] To solve at least one of the above technical defects, the utility model provides the following technical solutions:

[0004] In the first aspect of this application document, a plate evaporator is disclosed, including a plate body and a tube body. The plate body is formed of a material with heat conduction performance, and at least part of the tube body is fixed to the plate body, and the part of the tube body connected to the plate body extends in a curve in the cavity or on the surface of the plate body.

[0005] In this solution, the plate evaporator is redesigned. The tube body is directly fixed on the heat-conductive plate body. When in use, if the plate body is attached to the object to be cooled, the heat received by the plate body is transferred to the refrigerant flowing through the tube body, and the curve extension is used to expand the heat exchange area. The structure of this evaporator is simplified, the heat exchange efficiency is high, and it is convenient for assembling and forming, which helps to reduce costs and can be enlarged in size according to requirements.

[0006] For the curve extension, a specific curve configuration can be selected according to requirements, such as an arc shape, a wavy shape or an S shape, etc.

[0007] Preferably, the part of the tube body on the surface of the plate body extends in a continuous S shape, which helps to expand the heat exchange area and fully exchange heat.

[0008] Furthermore, the plate body is formed of copper material, and copper can transfer heat better.

[0009] Furthermore, the part of the tube body on the surface of the plate body is fixed by welding. The welding fixing method is not likely to cause deformation of the tube body and reduce the occurrence of leakage.

[0010] For the tube body, it can be integrally formed, or multiple tube segments are independently formed and connected to form a tube body.

[0011] Preferably, the tube body includes multiple pipelines and connecting pipes. The pipelines are fixed on the plate body, and the adjacent pipeline pipe openings are connected by connecting pipes to make the whole in a continuous S shape. The multiple pipelines are assembled and formed, reducing the forming difficulty.

[0012] Further, the tube body includes six sections of pipelines. The plate body has a length of 1100 - 1200 mm, a width of 180 - 220 mm, and a thickness of 15 - 25 mm. The length of the pipeline is greater than the length of the plate body. The six sections of pipelines and the corresponding connecting pipes form the tube body, and the dimensions of the plate body are defined, etc. The evaporator in this configuration can meet the applications of conventional refrigerators.

[0013] Further, the pipelines extend along the length direction of the plate body, which is convenient for installation.

[0014] The second aspect of this application document discloses a refrigerator, which includes the above-mentioned plate evaporator. The plate evaporator of this solution can be directly replaced with the evaporator in the corresponding refrigerator.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model redesigned the structure of the plate evaporator, which is composed of a tube body and a heat-conducting plate body. The structure is greatly simplified, which is convenient for assembly and molding, and the cost is reduced. The heat exchange efficiency is high, and the size can be enlarged according to requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the plate evaporator in Embodiment 1;

[0019] Among them, the reference numerals are:

[0020] 1. Plate body; 2. Tube body; 21. Pipeline; 22. Connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will further illustrate the present utility model with reference to the drawings and specific embodiments.

[0022] Embodiment 1

[0023] As Figure 1 shown, in this example, the plate evaporator includes a plate body 1 and a tube body 2. The plate body 1 is a flat plate formed of a material with heat-conducting performance, such as copper for a material with heat-conducting performance.

[0024] At least part of the tube body 2 is fixed to the plate body 1, and the part of the tube body 2 connected to the plate body 1 extends in a curve within the cavity of the plate body 1 or on the surface of the plate body 1. AsFigure 1 As shown, part of the pipe body 2 is outside the plate body, and part of it is on the front surface of the plate body 1. The part of the pipe body 2 on the front surface of the plate body extends in a continuous S shape, which helps to expand the heat exchange area. Of course, channels can also be formed in the plate body according to requirements for the installation of the pipe body.

[0025] For the pipe body, it is preferably integrally formed. A segmented assembled pipe body structure is preferred, which is convenient for assembly. Specifically, the pipe body 2 is composed of multiple sections of pipes 21 and corresponding connecting pipes 22, such as Figure 1 As shown, the pipe body 2 includes six straight pipes 21 extending linearly and five connecting pipes 22. The connecting pipes 22 are U-shaped. The pipes 21 extend along the length direction of the plate body 1 and are arranged at intervals along the width direction of the plate body 1. The pipe openings between adjacent pipes 21 are butt-connected by U-shaped connecting pipes 22 to be connected, and the entire pipe body 2 is in a continuous S shape.

[0026] For the fixation of the pipe body, for example, the part of the pipe body 2 on the surface of the plate body 1 is fixed by welding, that is, the pipes 21 on the surface of the plate body 1 are fixed by welding, which helps to improve the stability of the structure and reduce the occurrence of leakage.

[0027] For the size of the plate body, the length, width, and thickness of the plate body can be selected according to requirements. To meet the application of a conventional refrigerator, the size of the plate body 1 in this example is as follows: the length is 1100 - 1200 mm, the width is 180 - 220 mm, and the thickness is 15 - 25 mm. Specifically, for example, the length is 1170 mm, the width is 200 mm, and the thickness is 20 mm. The length of each pipe 21 is greater than the length of the plate body 1, such as Figure 1 As shown, both ends of the pipe 21 are outside the plate body 1, which is convenient for the butt joint and sealing of the U-shaped connecting pipe.

[0028] During use, the plate body is fitted with the object in the cooling area. The refrigerant enters from the pipe opening of the uppermost pipe, flows through each pipe, and then flows out from the pipe opening of the lowermost pipe. During the process of flowing through the pipes, the refrigerant absorbs the heat of the plate body.

[0029] For a refrigerator containing the above-mentioned plate evaporator, a refrigerator with a conventional structure is selected, such as including a compressor, a condenser, a capillary tube, an evaporator, etc. The evaporator is replaced with the above-mentioned plate evaporator, and the operating principle remains the same.

[0030] The above is only the preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. Plate evaporator, characterized in that, The invention comprises a plate body (1) and a tube body (2), wherein the plate body (1) is formed of a material having heat-conducting properties, and the tube body (2) is at least partially fixed to the plate body (1). The part of the tube body (2) connected to the plate body (1) extends in a curved shape within the cavity of the plate body (1), or the part of the tube body (2) connected to the plate body (1) extends in a curved shape on the surface of the plate body (1).

2. The plate evaporator according to claim 1, characterized in that: The portion of the tube body (2) on the surface of the plate body (1) extends in a continuous S-shape.

3. The plate evaporator according to claim 1, characterized in that: The plate body (1) is formed from copper.

4. The plate evaporator according to claim 1, characterized in that: The portion of the tube body (2) on the surface of the plate body (1) is fixed by welding.

5. The plate evaporator according to claim 1, characterized in that: The pipe body (2) comprises multiple sections of pipes (21) and connecting pipes (22). The pipes (21) are fixed on the plate body (1). The pipe openings of adjacent pipes (21) are connected by connecting pipes (22) so that the whole is in a continuous S-shape.

6. The plate evaporator according to claim 5, characterized in that: The pipe body (2) comprises six sections of pipes (21); the plate body has a length of 1100-1200 mm, a width of 180-220 mm, and a thickness of 15-25 mm; the length of the pipes (21) is greater than the length of the plate body (1).

7. The plate evaporator according to claim 5, characterized in that: The pipe (21) extends along the length direction of the plate body (1).

8. A freezer, characterized in that: The invention comprises the plate evaporator according to any one of claims 1 to 7.

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