Novel freezing evaporator
By printing S-shaped pipes on aluminum plates and combining them with plastic tank fittings, the problems of difficult transportation and low heat exchange performance of refrigeration evaporators were solved, achieving low-cost, high-efficiency flat-plate transportation and heat exchange.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HENAN NEW KELONG ELECTRICAL APPLIANCES
- Filing Date
- 2025-12-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing direct-cooling refrigerator evaporators face difficulties and high costs during transportation, especially the three-dimensional structure of wire tube evaporators, which results in extremely high packaging and transportation costs, while aluminum tube riveted evaporators have low heat exchange performance.
The aluminum plate structure with printed tubing is formed into S-shaped tubing through blow molding, and combined with plastic tank fittings and connecting pipes to achieve flatbed transportation, reduce transportation costs, improve heat exchange efficiency, and reduce welding points to reduce the risk of leakage.
It enables flat-plate transport of the refrigeration evaporator, reducing transportation costs, improving heat exchange efficiency, reducing the risk of leakage caused by weld joints, and features a simple structure and easy operation.
Smart Images

Figure CN121898041A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of refrigerator and freezer technology, specifically a novel freezer evaporator. Background Technology
[0002] For direct-cooling refrigerators, the evaporator is a crucial component that plays a key role. These mainly include wire-tube evaporators (using iron pipes and steel wire) and aluminum tube / embossed aluminum plate riveted evaporators. Both types of evaporators face transportation difficulties and high costs, especially wire-tube evaporators, which have a three-dimensional structure and extremely high packaging and transportation costs. Aluminum tube riveted evaporators can be transported on flatbeds, but due to the riveted structure, the bonding between the aluminum plate and the aluminum pipe is not strong, resulting in low heat exchange performance. This invention solves both of these problems, allowing for flatbed transport, saving transportation costs, while also achieving high heat exchange efficiency. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a new type of refrigeration evaporator with simple structure and easy operation. The pipeline is printed on an aluminum plate, which reduces the restrictions on the pipeline structure. At the same time, since the pipeline is integrated, the heat exchange efficiency is high. Furthermore, due to the small number of solder joints, the risk of leakage is low, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a novel refrigerated evaporator, comprising a refrigerated blow-up evaporator, a plastic tank fitting, and connecting pipes. The refrigerated blow-up evaporator has printed tubing inside, which is arranged in an S-shaped structure. The refrigerated blow-up evaporator also has through holes. The refrigerated blow-up evaporator includes a central vertical plate, with an integrally connected horizontal evaporator plate at the lower end of the central vertical plate. Two sets of evaporator side plates are provided on the central vertical plate, with two evaporator side plates forming a group. A plastic tank fitting is provided between the two evaporator side plates in each group.
[0005] Furthermore, the cryogenic blow-up evaporator is provided with through holes, and the density of the through holes on the cryogenic blow-up evaporator increases sequentially from top to bottom.
[0006] Furthermore, the upper inlet and outlet of the refrigerated blown evaporator are respectively connected to pipes, which are connected to the refrigerated blown evaporator by welding.
[0007] Furthermore, the evaporator side plate has an L-shaped structure, and the evaporator side plate is integrally connected with the middle vertical plate.
[0008] Furthermore, the plastic tank accessory includes a mounting plate with a U-shaped groove on one side that engages with the edges of the two evaporator side plates. A support plate is located in the middle of one side of the mounting plate at the gap between the two evaporator side plates.
[0009] A novel method for producing a refrigerated evaporator. Step 1: First, process the refrigerated blow-up evaporator. Prepare two aluminum plates. Print graphite tubes on one aluminum plate and rivet the other aluminum plate with the graphite tubes printed on it so that the graphite tubes are between the two aluminum plates. The two aluminum plates are fused together by hot rolling. Then, they are expanded under high pressure to form the printed tubes into a passage. Finally, they are punched and cut into plates. Step 2: Process the through holes, horizontal evaporator plate and evaporator side plate on the refrigerated blow-up evaporator. Use a punching device to process four L-shaped punching grooves to process the evaporator side plate. Then punch the through holes. Finally, bend the horizontal evaporator plate and evaporator side plate into shape. Step 3: Weld connecting pipes to the inlet and outlet of the processed refrigerated blown evaporator; Step 4: Finally, the plastic tank fittings are injection molded, and then the two processed plastic tank fittings are snapped onto the edge of each evaporator side plate to complete the processing.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the printed pipes of the evaporator are made by blowing, which solves the problem of poor heat exchange efficiency caused by welding ordinary aluminum pipes and aluminum plates. In addition, the aluminum plates have a high degree of bonding and can be transported on a flat plate. This new type of refrigeration evaporator has a simple structure and is easy to operate. The pipes are printed on the aluminum plate, which reduces the restrictions on the pipe structure. At the same time, since the pipes are integrated, the heat exchange efficiency is high. Furthermore, due to the small number of weld points, the risk of leakage is low. The evaporator can be transported on a flat plate, saving transportation costs and improving the heat exchange efficiency of the evaporator. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the cryogenic blowing evaporator of the present invention; Figure 3 This is a schematic diagram of the back structure of the cryogenic blow-up evaporator of the present invention; Figure 4 This is a schematic diagram of the side structure of the cryogenic blowing evaporator of the present invention; Figure 5 This is a schematic diagram of the cold plastic tank accessory structure of the present invention; Figure 6 This is a partially enlarged structural diagram of the plastic tank accessory of the present invention.
[0012] In the diagram: 1 Horizontal evaporator plate, 2 Evaporator side plate, 3 Plastic tank fittings, 31 Mounting clip, 32 U-shaped clip, 33 Support plate, 4 Connecting pipe, 5 Middle vertical plate, 6 Through hole, 7 Printed piping. Detailed Implementation
[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present 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 effort are within the scope of protection of the present invention.
[0014] Please see Figure 1-6 This invention provides a technical solution: a novel refrigerated evaporator, comprising a refrigerated blow-up evaporator, a plastic tank fitting 3, and a connecting pipe 4. The refrigerated blow-up evaporator has printed tubing 7 arranged in an S-shape inside. The refrigerated blow-up evaporator also has through holes 6. The refrigerated blow-up evaporator includes a central vertical plate 5, with an integrally connected horizontal evaporator plate 1 at the lower end of the central vertical plate 5. Two sets of evaporator side plates 2 are arranged on the central vertical plate 5, forming a group of two evaporator side plates. A plastic tank fitting 3 is provided between the two evaporator side plates in each group. The evaporator is provided with through holes 6. The density of the through holes 6 on the refrigerated evaporator increases from top to bottom. The upper inlet and outlet of the refrigerated evaporator are respectively connected to pipes 4. The pipes 4 are connected to the refrigerated evaporator by welding. The evaporator side plate 2 has an L-shaped structure and is integrally connected with the middle vertical plate 5. The plastic tank accessory 3 includes a mounting plate 31. A U-shaped groove 32 is provided on one side of the mounting plate 31. The U-shaped groove 32 is engaged at the edge of the two evaporator side plates 2. A support plate 33 is provided in the middle of one side of the mounting plate 31. The support plate 33 is located in the gap between the two evaporator side plates 2.
[0015] A novel method for producing a refrigerated evaporator. Step 1: First, process the refrigerated blow-up evaporator. Prepare two aluminum plates. Print graphite tubes on one aluminum plate and rivet the other aluminum plate with the printed graphite tubes to place the graphite tubes between the two aluminum plates. The two aluminum plates are fused together by hot rolling and then subjected to high-pressure expansion to form the printed tubes 7 into a passage. Finally, it is punched and cut into a plate. Step 2: Process the through hole 6, horizontal evaporator plate 1 and evaporator side plate 2 on the refrigeration blow-up evaporator. Use a punching device to process four L-shaped punching grooves to process the evaporator side plate 2. Then punch the through hole 6. Finally, bend the horizontal evaporator plate 1 and evaporator side plate 2 into shape. Step 3: Weld pipe 4 to the inlet and outlet of the processed refrigerated blown evaporator respectively; Step 4: Finally, the plastic tank fitting 3 is injection molded, and then the two processed plastic tank fittings 3 are snapped onto the edge of each evaporator side plate 2 to complete the processing; the printed pipes 7 of the evaporator are made by blow-blowing, which solves the problem of poor heat exchange efficiency caused by welding ordinary aluminum pipes and aluminum plates, and the aluminum plates have a high degree of bonding and can be transported on a flat plate. This new type of refrigeration evaporator has a simple structure and is easy to operate. The pipes are printed on the aluminum plate, and the pipe structure is less restricted. At the same time, since the pipes are integrated, the heat exchange efficiency is high. Also, due to the few weld points, the risk of leakage is small. The evaporator can be transported on a flat plate, saving transportation costs and improving the heat exchange efficiency of the evaporator.
[0016] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.
Claims
1. A novel refrigeration evaporator, comprising a refrigeration blow-up evaporator, a plastic tank fitting (3), and a connecting pipe (4), characterized in that: The inside of the refrigerated blow-up evaporator is provided with printed pipes (7), and the printed pipes (7) are arranged in an S-shaped structure inside the printed pipes (7). The refrigerated blow-up evaporator is provided with through holes (6). The refrigerated blow-up evaporator includes a middle vertical plate (5). The lower end of the middle vertical plate (5) is provided with an integrally connected horizontal evaporator plate (1). The middle vertical plate (5) is provided with two sets of evaporator side plates (2). The two evaporator side plates (2) form a group. A plastic tank fitting (3) is provided between the two evaporator side plates (2) in each group.
2. The novel refrigeration evaporator according to claim 1, characterized in that: The refrigerated blow-up evaporator is provided with through holes (6), and the density of the through holes (6) on the refrigerated blow-up evaporator increases sequentially from top to bottom.
3. A novel refrigerated evaporator according to claim 1, characterized in that: The upper inlet and outlet of the cryogenic blow-up evaporator are respectively connected to pipes (4), and the pipes (4) are connected to the cryogenic blow-up evaporator by welding.
4. A novel refrigerated evaporator according to claim 1, characterized in that: The evaporator side plate (2) has an L-shaped structure and is integrally connected with the middle vertical plate (5).
5. A novel refrigerated evaporator according to claim 1, characterized in that: The plastic tank fitting (3) includes a mounting plate (31), a U-shaped slot (32) is provided on one side of the mounting plate (31), the U-shaped slot (32) is engaged at the edge of the two evaporator side plates (2), and a support plate (33) is provided in the middle of one side of the mounting plate (31), the support plate (33) is located in the gap between the two evaporator side plates (2).
6. The method for producing a novel refrigerated evaporator according to claim 1, characterized in that: Step 1: First, process the refrigerated blow-up evaporator. Prepare two aluminum plates. Print graphite pipes on one aluminum plate and rivet the other aluminum plate with the printed graphite pipes so that the graphite pipes are between the two aluminum plates. The two aluminum plates are fused together by hot rolling and then expanded under high pressure to form the printed pipes (7) into a passage. Finally, they are punched into plates. Step 2: Process the through hole (6), horizontal evaporator plate (1) and evaporator side plate (2) on the refrigerated blow-up evaporator. Use a punching device to process four L-shaped punching grooves to process the evaporator side plate (2). Then punch the through hole (6). Finally, bend the horizontal evaporator plate (1) and evaporator side plate (2) into shape. Step 3: Weld pipes (4) onto the inlet and outlet of the processed frozen blown evaporator respectively; Step 4: Finally, the plastic tank fittings (3) are injection molded, and then the two processed plastic tank fittings (3) are snapped onto the edge of each evaporator side plate (2) to complete the processing.