Refrigerant ring channel mold

By designing a mold for refrigerant loop radiators and employing a mold clamping and tangential feeding channel, the problems of long production cycle and high cost of refrigerant loop radiators are solved, and rapid, low-cost one-piece molding production is achieved.

CN224525971UActive Publication Date: 2026-07-21NINGBO SEHNGJIU CABINET LOCK CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SEHNGJIU CABINET LOCK CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The production of refrigerant ring tube radiators currently rarely uses one-piece die casting technology, resulting in long production cycles and high costs.

Method used

Design a mold that includes a front mold core body and a rear mold core body. The rear mold core body is provided with a tube groove and a cooling channel. The tube body is clamped by mold closing and the die-casting raw material is wrapped around the tube body by using the surrounding tangential feeding channel to form the radiator body and the tube body integrally formed.

Benefits of technology

This enabled the rapid production of refrigerant loop radiators, reduced production costs, and improved product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224525971U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of refrigerant ring pipe mould, it is to solve the technical problem that the refrigerant ring pipe radiator and its similar product less using integrated molding die casting technology to realize production, leading to longer production cycle, higher production cost.The mould includes the front mould core main body as movable mould, and the rear mould core main body as fixed mould;Its gist is that the front mould core main body above the rear mould core main body is provided with the recess corresponding with the pipe groove position and cavity groove position, and corresponding hole position;After the pipe groove position of the rear mould core main body is put into pipe body, the front mould core main body is lowered and is clamped with the rear mould core main body through mould closing and holds pipe body, the inlet and outlet of cooling liquid of pipe body respectively extend the side of the mould after mould closing, and the raw material melt of raw material through the side of the mould after mould closing is fed by flow channel, gradually wraps the outer diameter of the pipe body in the mould and forms the radiator main body of die casting product, and the die casting product is the radiator main body and pipe body die casting and forms refrigerant ring pipe radiator.
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Description

Technical Field

[0001] This utility model relates to die-casting molds for alloy pipe fittings, specifically a refrigerant ring pipe mold. Background Technology

[0002] A refrigerant loop radiator is a type of pipe-type radiator used for efficient heat dissipation. It typically includes the radiator body and inlet / outlet pipes. This type of refrigerant loop radiator utilizes refrigerant for heat dissipation and is commonly found in equipment such as air conditioner radiators, effectively improving the operating performance of equipment in high-temperature environments. Its working principle is as follows: The circulating refrigerant absorbs and releases heat through circulation and phase change within a closed pipe, transferring the heat to external heat dissipation devices (such as condensers), thereby cooling the target equipment. Die casting is a type of pressure-cast part. Generally, a pressure casting machine (die casting machine) with a mold is used to pour molten copper, zinc, aluminum, or aluminum alloy into the die casting machine's inlet. The die casting machine then casts copper, zinc, aluminum, or aluminum alloy parts into shapes and sizes defined by the mold. Such parts are commonly called die castings. However, traditional refrigerant loop radiators, with welded front and rear cover plates, have complex structures, high costs, and long production cycles, and are rarely produced using integrated die casting technology. Summary of the Invention

[0003] To overcome the above shortcomings, the purpose of this utility model is to provide a mold for easy one-piece die casting of refrigerant ring pipes, thereby solving the technical problem that existing refrigerant ring pipe radiators and similar products rarely adopt one-piece die casting technology, resulting in long production cycles and high production costs. This objective is achieved through the following technical solution.

[0004] A refrigerant ring pipe mold includes a front mold core body as a moving mold and a rear mold core body as a fixed mold. The key structural design features a pipe groove in the rear mold core body, forming a cavity groove for the radiator body, along with corresponding cooling channels, guide rod holes, and fixing holes. The front mold core body above the rear mold core body has grooves corresponding to the pipe groove and cavity groove, and corresponding holes. After the pipe body is placed in the pipe groove of the rear mold core body, the front mold core body moves down and clamps the pipe body with the rear mold core body. The coolant inlet and outlet of the pipe body extend out to one side of the mold after mold closing. Die-casting raw material is fed through the flow channel from the molten material on one side of the mold after mold closing, gradually enveloping the outer diameter of the pipe body inside the mold and forming the die-cast radiator body. The die-cast product is a refrigerant ring pipe radiator formed by die-casting the radiator body and the pipe body as one piece. Once the radiator body is formed and connected to the pipe body, the front mold core body can be opened to remove the refrigerant ring pipe radiator, which is now integrated with the pipe body. Then, it can be left to cool or undergo cooling treatment.

[0005] The coolant inlet and outlet of the tube body after it extends out are respectively provided with pipe joints. When the die-casting raw material passes through the mold and the raw material melt on one side of the mold is fed through the flow channel, the coolant inlet and outlet of the tube body at both ends are connected to the coolant through the pipe joints.

[0006] The melting point of the tube body is the same as that of the die-casting raw material, and the outer diameter of the radiator body and the tube body are fused together by die casting.

[0007] The tube is U-shaped, serpentine, or irregularly curved, with the coolant inlet and outlet extending out from one side of the rear mold core body. The tube is not limited to the aforementioned shape; it can also be straight or other shapes.

[0008] The raw material melt is fed through a tangential feed channel. The melt flows in a serpentine pattern from the outer large feed inlet, narrowing in diameter before converging at one side of the cavity in the rear mold core, where it adheres to the middle of the side of the radiator body, forming a flat, pointed nozzle. The die-casting process uses high-pressure jet molding, which involves high speed and significant impact. To minimize the impact of the feed on the product during die-casting, a tangential feed is used to prevent direct impact on the tube body and thus avoid deformation.

[0009] The refrigerant ring pipe made according to the above-mentioned refrigerant ring pipe mold, the radiator body and the outer diameter of the pipe body of the refrigerant ring pipe radiator are connected as one piece by die casting, the coolant inlet and outlet of the pipe body extend out of the radiator body respectively, and the pipe body inside the radiator body is U-shaped, serpentine or irregularly shaped.

[0010] This utility model has a reasonable structural design, is convenient for mold opening and closing, has low production cost, fast production cycle, and good product quality; it is suitable for use as an integrated molding mold for refrigerant ring pipe die casting, as well as for structural improvements of similar products. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention, in which the dotted lines represent the main body of the front mold core.

[0012] Figure 2 yes Figure 1 A top view of the main body of the rear mold core.

[0013] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the die-cast finished product. The dotted lines in the diagram represent the tubes inside the radiator body.

[0014] Figure 4 yes Figure 3 A cross-sectional structural diagram.

[0015] The attached figures are numbered and named as follows: 1. Front mold core body, 2. Radiator body, 3. Pipe body, 4. Raw material melt flow channel, 5. Rear mold core body, 6. Pipe joint. Detailed Implementation

[0016] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-4 As shown, the mold includes a front mold core body 1 as a moving mold and a rear mold core body 5 as a fixed mold. The rear mold core body is provided with a tube groove to form a cavity groove for the radiator body 2, as well as a corresponding cooling channel, guide rod hole and fixing hole. The front mold core body above the rear mold core body is provided with a groove corresponding to the tube groove and cavity groove, as well as a corresponding hole. After the tube body 3 is placed in the tube groove of the rear mold core body, the front mold core body moves down and holds the tube body with the rear mold core body through the mold clamping. The coolant inlet and outlet of the tube body extend out of one side of the mold after the mold is closed. The die casting raw material is fed through the raw material melt on one side of the mold after the mold is closed and fed through the flow channel 4, gradually wrapping the outer diameter of the tube body inside the mold and forming the die-cast radiator body. The die-cast product is a refrigerant ring tube radiator formed by die casting the radiator body and the tube body together.

[0017] The aforementioned tube body extends beyond the rear mold core body and is equipped with pipe joints 6 at its coolant inlet and outlet. When the die-casting raw material is fed through the flow channel on one side of the mold after mold closing, the coolant inlet and outlet at both ends of the tube body are connected to the coolant via the pipe joints. The tube body is U-shaped, and the coolant inlet and outlet of the tube body extend simultaneously to one side of the rear mold core body. The melting point of the tube body is the same as that of the die-casting raw material. The outer diameter of the radiator body and the tube body are fused together by die casting. The raw material melt flows through a tangential feed channel. The raw material melt bends inward from the outer large feed port of the flow channel in a serpentine manner, then narrows the diameter, and finally enlarges into a flat, pointed tip at the middle of the side of the radiator body formed by attaching it to the cavity groove position of the rear mold core body.

[0018] This mold is a die-casting mold for integral forming of aluminum-magnesium-zinc alloy, including a front core body, a rear core body, and an embedded alloy tube. The specific process steps are as follows: 1) The tube 3 is placed into the mold core of the rear core body 5 and fixed; 2) The melting point of the tube 3 is basically the same as the melting point of the die-casting raw material. To ensure that the tube 3 does not soften during die-casting, coolant is supplied through pipe joints 6 at the coolant inlet and outlet at both ends of the tube 3; 3) The raw material melt is fed from the side through the flow channel 4, gradually enveloping the tube 3 to form the die-cast radiator body 2. Finally, the mold is opened, and the refrigerant ring-pipe radiator, formed integrally with the tube body, is removed.

[0019] The above description is intended to illustrate the technical means of this utility model and is not intended to limit the technical scope of this utility model. Any obvious improvements or substitutions made to this utility model by those skilled in the art based on existing common knowledge also fall within the protection scope of the claims of this utility model.

Claims

1. A refrigerant ring pipe mold, the mold comprising a front mold core body (1) as a moving mold and a rear mold core body (5) as a fixed mold; characterized in that The rear mold core body (5) is provided with a tube groove to form the cavity groove of the radiator body (2), as well as the corresponding cooling channel, guide rod hole and fixing hole. The front mold core body (1) above the rear mold core body is provided with a groove corresponding to the tube groove and cavity groove, as well as a corresponding hole. After the tube groove of the rear mold core body is placed into the tube body (3), the front mold core body moves down and holds the tube body with the rear mold core body through the mold clamp. The coolant inlet and outlet of the tube body extend out of the mold side after the mold is closed. The die casting material is fed through the flow channel (4) through the raw material melt on the mold side after the mold is closed, gradually wrapping the outer diameter of the tube body in the mold and forming the die casting finished radiator body. The die casting finished product is a refrigerant ring tube radiator formed by die casting the radiator body and the tube body together.

2. The refrigerant loop mold according to claim 1, characterized in that... The coolant inlet and outlet of the tube body (3) after it extends out of the mold core body (5) are respectively provided with pipe joints (6). When the die casting raw material passes through the mold and the raw material melt on one side of the mold is fed through the flow channel (4), the coolant inlet and outlet of the tube body at both ends are connected to the coolant through the pipe joints.

3. The refrigerant loop mold according to claim 1, characterized in that... The melting point of the tube body (3) is the same as the melting point of the die-casting raw material, and the radiator body (2) and the outer diameter of the tube body are fused together by die casting.

4. The refrigerant loop mold according to claim 1, characterized in that... The tube (3) is U-shaped, serpentine or irregularly curved, and the coolant inlet and outlet of the tube extend out to one side of the rear mold core body (5).

5. The refrigerant loop mold according to claim 1, characterized in that... The raw material melt is fed through the flow channel (4) as a tangential feeding channel. The raw material melt bends inward from the outer large feed port of the flow channel in a serpentine shape and then reduces the diameter of the hole. It is then attached to the side edge of the cavity of the rear mold core body (5) and formed into a flat pointed nozzle in the middle of the side of the heat sink body (2).

6. The refrigerant loop mold according to claim 1, characterized in that... The outer diameter of the radiator body (2) and the pipe body (3) of the refrigerant ring pipe radiator are connected by die casting. The coolant inlet and outlet of the pipe body extend out of the radiator body. The pipe body inside the radiator body is U-shaped, serpentine or irregularly shaped.