Direct-cooling evaporator for refrigerator and freezer

Abstract

The utility model discloses a direct cooling type evaporator for a refrigerator and a freezer, which comprises aluminum pipe heat exchange pieces, the aluminum pipe heat exchange pieces are distributed on the upper side and the lower side, each layer of aluminum pipe heat exchange piece is of an S structure, the upper layer of aluminum pipe heat exchange piece and the lower layer of aluminum pipe heat exchange piece are formed by bending an aluminum pipe, and the opposite sides of the upper layer of aluminum pipe heat exchange piece and the lower layer of aluminum pipe heat exchange piece are provided with shelf plates. The shelf is connected with the aluminum pipe heat exchange piece through the aluminum pipe buckles, the upper end and the lower end of the shelf are provided with the mounting clamping strip plates, the vent holes are evenly formed in the shelf, the device is more convenient to mount through the mounting clamping strip plates, the surface of the evaporator can be smooth through the shelf, and therefore articles can be placed on the upper surface of the evaporator, and the evaporator is more convenient to mount. According to the direct-cooling evaporator for the refrigerator and the freezer and the machining method thereof, the structure is simple, machining is convenient, the surface of the evaporator is smooth, objects can be directly placed, machining steps are few, efficiency is high, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of direct-cooling evaporators, and particularly relates to a direct-cooling evaporator for refrigerators and freezers. Background Art

[0002] The evaporator for direct cooling is an evaporator inside the box body, and its basic structure is a wire-tube evaporator or an embossed aluminum plate-tube evaporator; such evaporators have the advantage of high heat transfer efficiency, but generally are used in cooperation with drawers. For refrigerators without drawers, due to the iron wires for heat dissipation on the wire-tube evaporator, the surface is uneven, which affects the placement of items; especially in African countries, refrigerators are often used to freeze water in plastic bags, which often causes the water to be unable to be taken out, and a shelf has to be used, affecting the use effect. The embossed aluminum plate evaporator cannot be directly used for placing items either because of its low strength; and there are stamping holes for connecting aluminum tubes, so it cannot be directly used for placing items either. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a direct-cooling evaporator for refrigerators and freezers, which has a simple structure, is convenient for processing, the surface of the evaporator is flat, items can be directly placed on it, the processing efficiency is high, and the cost is low, and can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a direct-cooling evaporator for refrigerators and freezers, including an aluminum tube heat exchange member, the aluminum tube heat exchange members are distributed on the upper and lower sides, each layer of aluminum tube heat exchange member is in an S structure, and the upper and lower layers of aluminum tube heat exchange members are formed by bending a single aluminum tube. On the opposite sides of the upper and lower layers of aluminum tube heat exchange members, there are shelves, and the shelves are connected to the aluminum tube heat exchange members through aluminum tube buckles. Installation clamping strip plates are arranged at the upper and lower ends of the shelves, and ventilation holes are evenly arranged on the shelves.

[0005] Further, the aluminum tube buckle is integrally connected with the shelf, and on one side of the aluminum tube buckle, there is an arc-shaped card slot corresponding to the aluminum tube heat exchange member, and the aluminum tube buckles are evenly distributed along the direction of the aluminum tube on the aluminum tube heat exchange member.

[0006] Further, the ventilation holes are evenly distributed along the edge of the shelf.

[0007] Further, a nickel plating layer is arranged on the outer side of the shelf, and the thickness of the nickel plating layer is not less than 15um. The purpose of the plating layer with a shelf thickness greater than 1mm is to conduct heat evenly. This method is not limited to nickel plating, or other plating layers, or coating with aluminum foil tape.

[0008] Further, the installation clamping strip plate is integrally connected with the shelf, and the cross section of the installation clamping strip plate is a U-shaped structure.

[0009] A processing method for a direct-cooling evaporator used in refrigerators and freezers, comprising the following steps;

[0010] S1) Shelf processing: First, the shelf is processed by an injection molding machine according to the dimensions. While injecting, the installation clamping strip plate and the aluminum tube buckle are processed simultaneously, and then the ventilation holes are processed;

[0011] S2) External treatment of the shelf: The processed shelf is subjected to a coating treatment on the surface by chemical plating method, so as to process a nickel-plated layer on the outside of the shelf, thereby increasing the heat conduction performance of the shelf;

[0012] S3) Aluminum tube processing: A aluminum tube is bent into a planar S-shaped structure according to needs;

[0013] S4) Assembly and molding: Two shelves are clamped on the aluminum tube through aluminum tube buckles, and then the two shelves are bent into an up-and-down structure to be processed and formed.

[0014] Further, when processing the ventilation holes, the ventilation holes are reserved during injection molding by the injection molding machine, or the ventilation holes are processed by a punching machine after the shelf is formed.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: The refrigerant can directly pass through through the aluminum tube heat exchange part. The heat conduction performance of the shelf can be increased through the nickel-plated layer. The installation of the device is made more convenient through the installation clamping strip plate. The surface of the evaporator can be made flat through the shelf, so that items can be placed on the upper surface of the evaporator. The direct-cooling evaporator for refrigerators and freezers and its processing method have a simple structure, convenient processing, a flat surface of the evaporator, can directly place items, few processing steps, high efficiency, and low cost. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the aluminum tube heat exchange part of the present utility model after bending;

[0018] Figure 3 It is a schematic front view structural diagram of the shelf of the present utility model;

[0019] Figure 4 It is a schematic side view structural diagram of the shelf of the present utility model;

[0020] Figure 5 It is a schematic structural diagram of the shelf and the aluminum tube heat exchange part of the present utility model after being buckled.

[0021] In the figure: 1 aluminum tube heat exchange part, 2 aluminum tube buckle, 3 shelf, 4 installation clamping strip plate, 5 ventilation hole, 6 nickel-plated layer. Detailed Embodiment

[0022] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , the present invention provides a technical solution: a direct cooling evaporator for refrigerators and freezers, including an aluminum tube heat exchange member 1. The aluminum tube heat exchange members 1 are distributed on the upper and lower sides. Each layer of the aluminum tube heat exchange member 1 is in an S structure, and the upper and lower layers of the aluminum tube heat exchange members 1 are formed by bending a single aluminum tube. On the opposite sides of the upper and lower layers of the aluminum tube heat exchange members 1, there are storage shelves 3. The storage shelves 3 are processed from plastic or aluminum plates. The storage shelves 3 are connected to the aluminum tube heat exchange members 1 through aluminum tube buckles 2. Installation clamping strip plates 4 are provided at the upper and lower ends of the storage shelves 3. Ventilation holes 5 are evenly provided on the storage shelves 3. The refrigerant can directly pass through the aluminum tube heat exchange member 1. The heat conduction performance of the storage shelf 3 can be increased through the nickel plating layer 6. The installation of the device is made more convenient through the installation clamping strip plates 4. The surface of the evaporator can be made flat through the storage shelf 3, so that items can be placed on the upper surface of the evaporator. The aluminum tube buckle 2 is integrally connected to the storage shelf 3. On one side of the aluminum tube buckle 2, there is an arc-shaped card slot corresponding to the aluminum tube heat exchange member 1, and the aluminum tube buckles 2 are evenly distributed along the aluminum tube direction on the aluminum tube heat exchange member 1. The ventilation holes 5 are evenly distributed along the edge of the storage shelf 3. A nickel plating layer 6 is provided on the outside of the storage shelf 3, and the thickness of the nickel plating layer 6 is not less than 15um. The thickness of the storage shelf 3 is greater than 1mm. The material of the storage shelf 3 must meet the RoHS and REACH standards, and the material can be PS or other materials with high strength such as ABS. The installation clamping strip plate 4 is integrally connected to the storage shelf 3, and the cross-section of the installation clamping strip plate 4 is a U-shaped structure.

[0024] A processing method for a direct cooling evaporator for refrigerators and freezers includes the following steps;

[0025] S1) Storage shelf processing: First, the storage shelf 3 is processed by an injection molding machine according to the size. The installation clamping strip plate 4 and the aluminum tube buckle 2 are processed simultaneously during injection molding, and then the ventilation holes 5 are processed. When processing the ventilation holes 5, the ventilation holes 5 are reserved during injection molding by the injection molding machine, or the ventilation holes 5 are processed by a punching machine after the storage shelf 3 is formed.

[0026] S2) External treatment of the storage shelf: The processed storage shelf 3 is subjected to a plating treatment on the surface by chemical plating to process a nickel plating layer 6 on the outside of the storage shelf 3, thereby increasing the heat conduction performance of the storage shelf 3.

[0027] S3) Aluminum tube processing: Bend an aluminum tube into a planar S-shaped structure as required.

[0028] S4) Assembly and forming: Clamp two storage shelves 3 onto the aluminum tube through aluminum tube fasteners 2, and then bend the two storage shelves 3 into an upper and lower structure for processing and forming. This direct cooling evaporator for refrigerators and freezers and its processing method have a simple structure, convenient processing, a flat evaporator surface, can directly place items, fewer processing steps, high efficiency, and low cost.

[0029] During use: The refrigerant can directly pass through the aluminum tube heat exchange part 1. The heat conduction performance of the storage shelf 3 can be increased through the nickel plating layer 6. The installation of the clamping strip plate 4 makes the installation of the device more convenient. The evaporator surface is flat through the storage shelf 3, so that items can be placed on the upper surface of the evaporator.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A direct cooling evaporator for a refrigerator or freezer, comprising an aluminum tube heat exchange element (1), characterized in that: The aluminum tube heat exchanger (1) is distributed on the upper and lower sides, and each layer of the aluminum tube heat exchanger (1) is in an S-structure. The upper and lower layers of the aluminum tube heat exchanger (1) are formed by bending an aluminum tube. The upper and lower layers of the aluminum tube heat exchanger (1) are provided with a shelf plate (3) on the opposite sides of the upper and lower layers of the aluminum tube heat exchanger (1). The shelf plate (3) is connected to the aluminum tube heat exchanger (1) through an aluminum tube buckle (2). The upper and lower ends of the shelf plate (3) are provided with mounting clip strips (4), and ventilation holes (5) are evenly arranged on the shelf plate (3).

2. A direct cooling evaporator for refrigerators and freezers according to claim 1, characterized in that: The aluminum tube clip (2) is integrally connected to the shelf plate (3); one side of the aluminum tube clip (2) is provided with an arc-shaped clip groove corresponding to the aluminum tube heat exchange component (1); and the aluminum tube clips (2) are evenly distributed along the direction of the aluminum tubes on the aluminum tube heat exchange component (1).

3. A direct cooling evaporator for refrigerators and freezers according to claim 1, characterized in that: The ventilation holes (5) are evenly distributed along the edge of the shelf plate (3).

4. A direct cooling evaporator for refrigerators and freezers according to claim 1, characterized in that: The outer side of the storage plate (3) is provided with a nickel-plated layer (6), and the thickness of the nickel-plated layer (6) is not less than 15 μm, and the thickness of the storage plate (3) is greater than 1 mm.

5. A direct cooling evaporator for refrigerators and freezers according to claim 1, characterized in that: The mounting clip strip (4) is integrally connected to the shelf plate (3), and the cross-section of the mounting clip strip (4) is a U-shaped structure.

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