Moving sealing ring for thermal management control valve

Abstract

The utility model provides a movable sealing ring for a heat management control valve, and belongs to the technical field of sealing. A movable sealing ring for a heat management control valve comprises a rigid framework ring, an outer film covering layer and a soft colloid layer. The flexible colloid layer is wrapped on the rigid framework ring; an outer film covering layer is arranged on the arc face, making contact with the valve element, of the soft colloid layer. And a positioning structure matched with the valve body is arranged on the outer side part of the soft colloid layer. The utility model has the advantages of reasonable design, lower leakage rate of finished products, better sealing effect, lower requirement on the precision of accessories, lower total processing cost, firmness in installation and positioning and difficulty in loosening.

Description

Technical Field

[0001] This utility model belongs to the field of sealing technology, specifically relating to a dynamic sealing ring for a thermal management control valve. Background Technology

[0002] With the increasing popularity of automobiles and the continuous development of electrical components, there is an urgent need for different types of thermal management modules, and thermal management control valves are one such medium for controlling heat exchange. Currently, the main drawbacks of thermal management control valves are high internal leakage rates and high costs, which places higher demands on the dynamic sealing rings within these valves.

[0003] The existing integrated dynamic sealing ring is composed of EPDM material covered with PTFE, which relies on interference and rebound to achieve sealing. The design has a small interference amount and a small compression amount. During use, it may shift and deviate, resulting in a high internal leakage rate inside the valve body. It cannot meet the increasingly competitive requirements of thermal management control valves. Utility Model Content

[0004] This invention addresses the problem that existing dynamic sealing rings have insufficient compression and may shift or deviate during use, leading to high internal leakage rates within the valve body. It provides a dynamic sealing ring for thermal management control valves.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A dynamic sealing ring for a thermal management control valve includes a rigid skeleton ring, an outer film layer, and a flexible colloid layer; the flexible colloid layer is wrapped around the rigid skeleton ring; the outer film layer is disposed on the arc surface of the flexible colloid layer that contacts the valve core; and a positioning structure that cooperates with the valve body is disposed on the outer side of the flexible colloid layer.

[0007] Preferably, the rigid skeleton ring has an L-shaped cross-section.

[0008] Furthermore, the positioning structure includes an annular groove disposed on the side of the flexible colloid layer away from the outer coating layer; the cross-section of the annular groove is arc-shaped.

[0009] Furthermore, the positioning structure includes an annular protrusion disposed on the outer ring surface of the flexible colloid layer; the cross-section of the annular protrusion is arc-shaped.

[0010] Preferably, the rigid skeleton ring is made of SUS 304 stainless steel.

[0011] Preferably, the flexible colloid layer is made of EPDM (ethylene propylene diene monomer) rubber; the thickness of the flexible colloid layer is 5 mm.

[0012] Preferably, the outer coating layer is made of PTFE (polytetrafluoroethylene); the thickness of the outer coating layer is 0.2 mm.

[0013] Compared with the prior art, this utility model has a reasonable design, reduces the leakage rate of finished products, increases the compression amount for better sealing effect, reduces the precision requirements of accessories, reduces the overall processing cost, and ensures a firm installation and positioning that is not easy to loosen. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] Figure 1 : Schematic diagram of the overall structure of this utility model;

[0016] Figure 2 : Schematic diagram of the cross-sectional structure of this utility model;

[0017] Figure 3 : A cross-sectional structural diagram of the present invention in use;

[0018] Figure 4 : A schematic diagram of the cross-sectional structure of this utility model;

[0019] Among them, 1-rigid skeleton ring, 2-outer coating layer, 3-flexible colloidal layer, 4-positioning structure, 41-annular groove, 42-annular protrusion. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] A dynamic sealing ring for a thermal management control valve includes a rigid skeleton ring 1, an outer film layer 2, and a flexible gel layer 3. The flexible gel layer 3 wraps around the rigid skeleton ring 1. The outer film layer 2 is disposed on the arc surface of the flexible gel layer 3 that contacts the valve core. A positioning structure 4 that mates with the valve body is disposed on the outer side of the flexible gel layer 3. This invention is manufactured using a vulcanization molding process, which significantly improves the strength, elasticity, and wear resistance of the dynamic sealing ring.

[0022] Preferably, the positioning structure 4 includes an annular groove 41 disposed on the side of the flexible colloid layer 3 away from the outer coating layer 2; the cross-section of the annular groove 41 is arc-shaped. In the application scenario, the annular groove 41 directly abuts against the valve body. The design of the annular groove changes the stress distribution of the flexible colloid layer 3, increasing the compression of the flexible colloid layer 3.

[0023] Furthermore, the positioning structure 4 includes an annular protrusion 42 disposed on the outer ring surface of the flexible colloid layer 3; the cross-section of the annular protrusion 42 is arc-shaped. In application scenarios, the valve body is provided with a groove that mates with the annular protrusion 42, and the two work together to fix the dynamic sealing ring horizontally. In addition, the design of the annular protrusion 42 can also change the stress distribution of the flexible colloid layer 3 when the dynamic sealing ring is subjected to radial pressure from the valve core, thereby increasing its compression.

[0024] Preferably, the rigid skeleton ring 1 has an L-shaped cross-section.

[0025] Preferably, the rigid skeleton ring 1 is made of SUS 304 stainless steel. The L-shaped cross-section design simplifies the manufacturing process, facilitates the wrapping of the flexible colloid layer 3, and ensures a more stable stress posture when the dynamic sealing ring is subjected to radial pressure, preventing deviation and deformation that could lead to internal leakage.

[0026] Preferably, the flexible colloid layer 3 is made of EPDM (ethylene propylene diene monomer) rubber; the thickness of the flexible colloid layer 3 is 5mm. By setting the thickness of the flexible colloid layer 3 to 5mm, and combining it with the flexible colloid layer annular protrusion 42 located on the side of the L-shaped cross-section of the rigid skeleton ring, the compression amount of this invention can reach 1.2mm, which is 2-3 times higher than the compression amount of the existing dynamic sealing ring.

[0027] Preferably, the outer coating layer 2 is made of PTFE (polytetrafluoroethylene); the thickness of the outer coating layer 2 is 0.2 mm. This method ensures that the outer coating layer 2 is stably cured on the surface of the flexible colloid layer 3, preventing it from falling off or wrinkling, while also guaranteeing sealing performance.

[0028] During use, a dynamic sealing ring is installed between the valve core and the valve body of the thermal management control valve. The EPDM flexible colloid layer 3 rebounds after being squeezed, and the PTFE outer film layer 2 abuts against the outer wall of the rotating valve core. The opposite flexible colloid layer annular groove 41 abuts against the inner wall of the valve body, and the outer flexible colloid layer annular protrusion 42 cooperates with the valve body groove to abut against the inner wall of the valve body, thereby achieving the effects of sealing and reducing rotational torque.

[0029] Compared with the existing technology, this utility model has a reasonable design, reduces the leakage rate of finished products, increases the compression amount for better sealing effect, and further reduces the precision requirements of accessories, thereby reducing the overall processing cost. In addition, it is firmly installed and not easy to loosen.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A dynamic seal ring for a thermal management control valve, characterized by: The valve core is provided with a rigid skeleton ring, an outer membrane layer and a flexible colloid layer; the flexible colloid layer is wrapped on the rigid skeleton ring; the outer membrane layer is arranged on the arc surface of the flexible colloid layer in contact with the valve core; the outer side of the flexible colloid layer is provided with a positioning structure matched with the valve body.

2. A dynamic sealing ring for a thermal management control valve according to claim 1, characterized in that: The rigid skeleton ring is in L-shaped cross section.

3. A dynamic sealing ring for a thermal management control valve according to claim 1, characterized in that: The positioning structure comprises a ring-shaped groove arranged on the side of the flexible colloid layer away from the outer membrane layer; the cross section of the ring-shaped groove is in circular arc shape.

4. A dynamic sealing ring for a thermal management control valve according to claim 1, characterized in that: The positioning structure comprises a ring-shaped protrusion arranged on the outer surface of the flexible colloid layer; the cross section of the ring-shaped protrusion is in circular arc shape.

5. A dynamic sealing ring for a thermal management control valve according to claim 2, characterized in that: The rigid skeleton ring is made of SUS 304 stainless steel.

6. A dynamic sealing ring for a thermal management control valve according to claim 1, characterized in that: The flexible colloid layer is made of EPDM ternary ethylene propylene rubber; the thickness of the flexible colloid layer is 5 mm.

7. A dynamic sealing ring for a thermal management control valve according to claim 1, characterized in that: The outer membrane layer is made of PTFE polytetrafluoroethylene; the thickness of the outer membrane layer is 0.2 mm.

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