Waterproof seal ring

Abstract

The invention provides a waterproof seal ring which is formed by direct injection molding of an elastic material onto a bearing housing. The waterproof seal ring includes a waterproof seal ring formedfrom the elastic material; a housing for supporting the waterproof seal ring. The waterproof seal ring can be formed in shape and position just by satisfying the principle of the injection molding process on the basis of requirement on three-dimensional shape of the bearing housing and waterproof sealing degree; because the waterproof seal ring is formed through the direct injection molding on the bearing housing, grooves and mortise and tenon required in installation of the waterproof seal ring of the bearing housing can be avoided, and the shaping and installation difficulty of the waterproof seal ring which is in a three-dimensional irregular shape is also reduced.

Description

Technical field [0001] The purpose of the present invention is a waterproof seal ring, especially a structural design that uses direct injection molding to make the waterproof seal ring composed of elastic materials and the load-bearing shell joint without gap; The direct injection molding method is used, so there is no need to add grooves and tenons required for installing the waterproof seal ring on the bearing shell, and only need to conform to the molding principle of injection molding to be able to follow the three-dimensional shape of the bearing shell Demand, location, and degree of waterproof sealing are required to form this waterproof sealing ring. Background technique [0002] In an environment where waterproof sealing is generally used, because the waterproof sealing ring composed of elastic material is formed separately, it is necessary to install the required grooves and tenons on the bearing shell when installing with the bearing shell. Therefore, the bearing shel...

AI Technical Summary

Problems solved by technology

[0002] In the environment where waterproof seals are generally used, because the waterproof seal rings composed of elastic materials are formed separately, it is necessary to set the required grooves and tenons on the load-bearing shell when installing with the load-bearing shell. Therefore, the load-bearing shell will have a certain thickness; and because it is formed separately and then assembled together, there will be a certain gap between the waterproof sealing ring and the load-bearing shell, and this gap is also the reason for the reduction of waterproof and sealing.

[0003] Because the general waterproof sealing ring has to be formed separately, there will be certain thickness and shape requirements, because if there is no certain thickness and standard shape, the waterproof sealing ring will also cause defective rate when forming and leaving the mold too high

[0004] Traditionally, the O-rings that are often used as waterproof seals are mostly two-dimensional planar shapes. However, due to the many functional requirements of electronic communication related products, the required waterproof seals have changed from the original two-dimensional shape. The three-dimensional plane shape becomes a three-dimensional shape with heights and bumps, and when the waterproof sealing ring must have a three-dimensional irregular shape, it will increase the defect rate and difficulty in forming and installing the waterproof sealing ring

[0005] Especially in terms of the degree of waterproof sealing, the section of the waterproof sealing ring is no longer just a traditional circular surface, but may also be V-shaped, elliptical and other non-traditional waterproof sealing ring shapes, and such a cross-section The change of the shape is to improve the closeness and waterproof performance of the upper and lower shells after assembly. However, if the traditional production method of separate molding is still followed, it will cause problems such as too many production molds and difficult production.

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