A new structure of soft rubber plug for liquid cooling plate airtight test, dust prevention and surface treatment protection

By designing a novel soft rubber plug with a spherical push rod and a silicone plug, the problem of easy detachment of traditional conical rubber plugs in the processing of liquid cooling plates is solved, achieving airtightness testing and dustproof effect, and convenient installation and disassembly.

CN122170299APending Publication Date: 2026-06-09HEFEI YINGFAN ELECTRONIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI YINGFAN ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2026-03-02
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the current liquid cooling plate processing, traditional conical rubber plugs are prone to falling off, causing processing inconvenience and making it difficult to meet the requirements of airtightness testing and dust prevention.

Method used

A novel soft rubber plug with a spherical push rod and a silicone plug is designed. The spherical body and the inner wall of the water nozzle are pressurized to achieve a seal and prevent it from falling off. The spherical push rod structure facilitates installation and disassembly.

Benefits of technology

It achieves the requirements of airtightness testing and dust prevention in the processing of liquid cooling plates, avoids the problem of traditional conical rubber plugs falling off, and is convenient and quick to install and disassemble.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates. It includes a spherical push rod and a rubber plug. The spherical push rod comprises a connecting rod, a sphere, and a pull head. One end of the connecting rod is connected to the sphere, and the other end is connected to the pull head. The rubber plug has a first cavity and a second cavity. A first channel is formed at the larger end of the rubber plug, connecting to the first cavity. The first channel is used to insert the sphere into the first cavity during assembly. The first cavity and the second cavity are connected by a second channel, which is used to push the connecting rod to allow the sphere to enter the second cavity. The volume of the second cavity is smaller than the volume of the sphere. It meets the airtightness requirements (300 kPa) of a cylindrical bore; effectively prevents detachment; is easy and quick to install and remove; and allows for quick visual inspection of the installation position by visually checking the length of the connecting rod.
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Description

Technical Field

[0001] This invention relates to the field of liquid cooling plate processing technology, and more specifically to a novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid cooling plates. Background Technology

[0002] During the production and processing of liquid cooling plates, processes such as airtightness testing, dust prevention, and surface treatment protection are required. Each process involves sealing the joints, but currently, traditional conical rubber plugs are mainly used, which are prone to falling off during operation, causing many inconveniences to the processing of liquid cooling heads. Summary of the Invention

[0003] To overcome the aforementioned deficiencies of the prior art, this invention provides a novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates. It can prevent electroplating solution from entering the interior of the cold-cooled plate during chemical nickel plating; it can be used to block channels during airtightness testing of a single cold-cooled plate; and it can also be used for secondary processing of a single cold-cooled plate to prevent dust and foreign objects from entering the product during turnover.

[0004] The technical solution of this invention is as follows:

[0005] A novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates includes a spherical push rod and a rubber plug.

[0006] The spherical push rod includes a connecting rod, a sphere, and a pull head. One end of the connecting rod is connected to the sphere, and the other end is connected to the pull head.

[0007] The rubber stopper has a first cavity and a second cavity inside. The larger end of the rubber stopper has a first channel that connects to the first cavity. The first channel is used to insert the sphere into the first cavity during assembly. The first cavity and the second cavity are connected by a second channel, which is used to push the connecting rod so that the sphere can enter the second cavity.

[0008] The volume of the second cavity is smaller than that of a sphere.

[0009] The connecting rod, sphere, and pull head are integrally molded structures.

[0010] The volume of the first cavity is equal to the volume of a sphere.

[0011] The stopper is a silicone stopper and is frustoconical in shape.

[0012] The diameter of the first channel is smaller than that of a sphere.

[0013] The technical effects and advantages of this invention are as follows:

[0014] It meets the airtight (300KPA) requirements for the inner diameter of cylindrical holes; it effectively prevents detachment; it is easy and quick to install and remove; and the installation status can be quickly determined by visually inspecting the length of the connecting rod. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of a spherical push rod structure;

[0017] Figure 3 This is a cross-sectional view of the rubber stopper;

[0018] Figure 4 This is a schematic cross-sectional view of the overall structure of the present invention;

[0019] Figure 5 and Figure 6 This is a schematic diagram showing the connection between the novel soft rubber plug and the water nozzle of the liquid cooling plate according to the present invention;

[0020] Figure 7 for Figure 6 AA sectional view. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below. 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.

[0022] Example 1

[0023] like Figures 1-4 The invention shown is a novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates, comprising a spherical push rod 1 and a rubber plug 2.

[0024] The spherical push rod includes a connecting rod 11, a sphere 12, and a pull head 13. One end of the connecting rod 11 is connected to the sphere 12, and the other end is connected to the pull head 13.

[0025] The rubber stopper 2 has a first cavity 21 and a second cavity 22 inside. The larger end of the rubber stopper has a first channel 23, which connects to the first cavity 21. The first channel 23 is used to insert the sphere 12 into the first cavity 21 during assembly. The first cavity 21 and the second cavity 22 are connected by a second channel 24, which is used for the sphere to enter the second cavity when the connecting rod is pushed.

[0026] The volume of the second cavity 22 is smaller than the volume of the sphere 12.

[0027] Furthermore, the connecting rod 11, the sphere 12, and the pull head 13 are integrally formed structures.

[0028] Furthermore, the volume of the first cavity 21 is equal to the volume of a sphere.

[0029] Furthermore, the stopper is a silicone stopper and is frustoconical in shape.

[0030] Furthermore, the diameter of the first channel is smaller than that of a sphere.

[0031] Example 2

[0032] like Figures 5-6 As shown, when the present invention is used: two spherical cavities are opened inside the rubber stopper, and the spherical push rod is used to push the sphere into the second cavity 22, thereby expanding the rubber stopper to form a bulge. The bulge part is used to achieve the purpose of sealing and preventing it from falling off by the interference fit between the bulge part and the inner wall of the inner cylindrical hole of the water nozzle 3.

[0033] Example 3

[0034] Furthermore, the spherical structure can also be replaced by a circular rectangle, a triangular pyramid, or a prism.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates, characterized in that: Includes ball-handling push rod and rubber stopper; The spherical push rod includes a connecting rod, a sphere, and a pull head. One end of the connecting rod is connected to the sphere, and the other end is connected to the pull head. The rubber stopper has a first cavity and a second cavity inside. The larger end of the rubber stopper has a first channel that connects to the first cavity. The first channel is used to insert the sphere into the first cavity during assembly. The first cavity and the second cavity are connected by a second channel, which is used to push the connecting rod so that the sphere can enter the second cavity. The volume of the second cavity is smaller than that of a sphere.

2. The novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates according to claim 1, characterized in that: The connecting rod, sphere, and pull head are integrally molded structures.

3. The novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates according to claim 1, characterized in that: The volume of the first cavity is equal to the volume of a sphere.

4. The novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates according to claim 1, characterized in that: The stopper is a silicone stopper and is frustoconical in shape.

5. A novel soft rubber plug for airtightness testing, dust prevention, and surface treatment protection of liquid-cooled plates according to claim 1, characterized in that: The diameter of the first channel is smaller than that of a sphere.