Dustproof, waterproof and high-temperature-resistant switch shell
By incorporating vent holes and corrugated sealing components in the switch housing, the problem of bulging in the sealing structure under high-temperature environments is solved, achieving dustproof, waterproof, and high-temperature resistant effects.
Patent Information
- Application Number
- CN202422855396.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing switches bulge and deform due to gas expansion in a confined space under high temperature, making them unable to operate normally and difficult to achieve dustproof and waterproof functions.
Design a dustproof, waterproof, and high-temperature resistant switch housing. It combines a sealing component with a vent hole. The sealing component has a corrugated structure, and is equipped with a guide groove and a support to achieve internal and external pressure balance and protect the sealing structure.
It effectively maintains the sealing performance of the sealed cavity, avoids damage to the sealing structure caused by high temperature, and ensures that the switch works normally in high-temperature environments.
Smart Images
Figure CN223638246U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the switch field especially relates to a dustproof waterproof high temperature switch casing. BACKGROUND
[0002] The switch must be closed to the internal structure to satisfy dustproof waterproof function, and the gas in the closed space expands under the high temperature environment, which can cause the switch to bulge, deform, and cannot be operated and other adverse phenomena. UTILITY MODEL CONTENTS
[0003] In view of the defects of the prior art, the utility model discloses a dustproof waterproof high temperature switch casing, which overcomes the defects of the prior art, and comprises an upper casing, a lower casing and a sealing rubber piece, the lower casing is tightly connected with the upper casing, a sealed cavity is formed between the upper casing and the lower casing, a gas permeable hole is arranged on the lower casing, the sealing rubber piece is arranged in the sealed cavity and is connected with the gas permeable hole, the sealing rubber piece is a tubular structure with one end sealed, and the side wall of the sealing rubber piece is in a corrugated structure.
[0004] Further, a first guide part and a second guide part are arranged to extend into the sealed cavity around the gas permeable hole, and a guide groove is formed between the first guide part and the second guide part.
[0005] Further, a support part is arranged on the sealing end of the sealing rubber piece.
[0006] Further, the support part is a circular ring structure, the upper surface of the support part is higher than the surface of the sealing end of the sealing rubber piece, and the radial dimension of the support part is greater than the outer diameter of the sealing rubber piece.
[0007] Further, sealing rubber is arranged between the contact surfaces of the upper casing and the lower casing.
[0008] The utility model has the following beneficial effects:
[0009] The utility model sets the gas permeable hole on the casing, sets the sealing rubber piece on the gas permeable hole, guarantees the sealing property of the internal sealed cavity, simultaneously utilizes the tenacity of the sealing rubber piece, adjusts the internal and external pressure balance in real time, effectively avoids the damage of the sealing structure of the casing due to the excessive pressure in the sealed cavity caused by the excessively high temperature. The sealing rubber piece adopts the corrugated structure, cooperates with the guide groove, protects the sealing rubber piece, and guides the deformation of the sealing rubber piece. The sealing end of the sealing rubber piece is provided with the support ring, which protects the sealing rubber piece. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is a structure schematic view of the dustproof waterproof high temperature switch casing of the utility model;
[0011] Fig. 2 This is a schematic diagram of the internal structure of a dustproof, waterproof, and high-temperature resistant switch housing according to the present invention;
[0012] Fig. 3 This is a schematic diagram showing the fit between the lower housing and the sealing components;
[0013] The attached figures are labeled as follows:
[0014] 1. Upper housing, 2. Lower housing, 3. Sealing component, 21. Vent hole, 22. First guide part, 23. Second guide part, 24. Guide groove, 31. Support part. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.
[0016] A dustproof, waterproof, and high-temperature resistant switch housing, such as Figs. 1-3 As shown, the device includes an upper housing 1, a lower housing 2, and a sealing component 3. The lower housing 2 is tightly connected to the upper housing 1, forming a sealed cavity between them. This sealed cavity is used to house components requiring sealing, such as switch modules. A vent 21 is provided on the lower housing 2. The sealing component 3 is disposed within the sealed cavity and connected to the vent 21, effectively protecting the sealing component 3. The sealing component 3 is a tubular structure sealed at one end, with a corrugated sidewall. When the ambient temperature is high, the gas inside the sealed cavity expands due to heat, compressing the sealing component 3 to increase the volume within the sealed cavity, thereby achieving internal and external pressure balance and preventing damage to the sealing structure due to excessive pressure. Furthermore, the corrugated structure guides the compression and expansion of the sealing component 3.
[0017] In one embodiment, such as Figs. 1-3 As shown, a first guide portion 22 and a second guide portion 23 extend into the sealing cavity around the vent 21, forming a guide groove 24 between the first guide portion 22 and the second guide portion 23. A sealing element 3 is fitted onto the first guide portion 22, with its sidewall located within the guide groove 24, and one end of the sealing element 3 connected to the bottom of the guide groove 24. When the sealing element 3 is compressed, it is axially compressed and expanded through the corrugated structure of its sidewall, and then retracts into the guide groove 24.
[0018] In one embodiment, such as Figs. 1-3 As shown, the sealing end of the sealing component 3 is provided with a support portion 31.
[0019] In the above embodiments, such as Figs. 1-3As shown, the support part 31 is a circular ring structure, and the upper surface of the support part 31 is higher than the surface of the sealing end of the sealing rubber piece 3, and the radial dimension of the support part 31 is greater than the outer diameter of the sealing rubber piece 3. Further, the upper end of the sealing rubber piece 3 is protected by the support part 31.
[0020] The above is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application; if the present application is modified or replaced without departing from the spirit and scope of the present application, it should be covered in the protection scope of the present application.
Claims
1. A dustproof and waterproof high-temperature-resistant switch housing, characterized in that, The device comprises an upper shell, a lower shell and a sealing rubber, the lower shell is tightly connected with the upper shell, a sealed cavity is formed between the upper shell and the lower shell, a gas permeable hole is arranged on the lower shell, the sealing rubber is arranged in the sealed cavity and connected with the gas permeable hole; The sealing rubber is a tubular structure with one end sealed, and the side wall of the sealing rubber is in a corrugated structure.
2. The dustproof and waterproof high-temperature-resistant switch shell according to claim 1, characterized in that, A first guide part and a second guide part are arranged in the sealed cavity around the gas permeable hole, and a guide groove is formed between the first guide part and the second guide part.
3. The dustproof and waterproof high-temperature-resistant switch shell according to claim 1, characterized in that, A support part is arranged on the sealed end of the sealing rubber.
4. The dustproof and waterproof high-temperature-resistant switch shell according to claim 3, characterized in that, The support part is in a circular ring structure, the upper surface of the support part is higher than the surface of the sealed end of the sealing rubber, and the radial dimension of the support part is greater than the outer diameter of the sealing rubber.
5. The dustproof and waterproof high-temperature-resistant switch shell according to claim 1, characterized in that, A sealing rubber is arranged between the contact surface of the upper shell and the lower shell.