Waterproof structure of optical sensor

Abstract

The utility model relates to the technical field of optical sensor protection, and discloses an optical sensor waterproof structure, which comprises a protective shell, an optical sensor body is arranged in the protective shell, a waterproof air hole is arranged on the wall surface of the protective shell, a waterproof air-permeable film is embedded in the waterproof air hole, and the optical sensor body is arranged in the protective shell. The protective shell is fixedly connected with a first wire conduit. According to the waterproof structure, through the embedded waterproof breathable film, the dual functions of water resistance and breathability are achieved, the unique micropore structure of the waterproof breathable film allows gas molecules to freely pass through, the humidity in the protective shell is effectively reduced, the problem that the performance of the optical sensor body is affected due to too high humidity is solved, and meanwhile the waterproof structure is convenient to use. And the micropores have an excellent blocking effect on liquid water molecules, so that external water cannot permeate into the protective shell, an excellent waterproof effect is achieved, the normal work of the optical sensor is guaranteed, and the service life of the optical sensor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of optical sensor protection, in particular to a waterproof structure for an optical sensor. Background Art

[0002] With the rapid development of technology, optical sensors are increasingly widely used in many fields such as industrial automation, environmental monitoring, medical equipment, aerospace, etc. These sensors usually need to work under various complex and changeable environmental conditions, including harsh environments such as high temperature, low temperature, humidity, and dust. Among them, the waterproof performance is one of the key factors to ensure the long-term stable operation of optical sensors.

[0003] Traditional protective shells of optical sensors often use a single waterproof material or structure for sealing. Although it can prevent moisture intrusion to a certain extent, it often sacrifices the air permeability, resulting in too high humidity inside the protective shell, which in turn affects the performance and service life of the optical sensor. In addition, the sealing problem of connecting components such as wire conduits is also a weak link in the waterproof structure and is likely to become a channel for moisture and impurities to invade. For this reason, a waterproof structure for an optical sensor is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a waterproof structure for an optical sensor.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A waterproof structure for an optical sensor, including a protective shell, an optical sensor body is arranged inside the protective shell, waterproof breathable holes are opened on the wall surface of the protective shell, a waterproof breathable membrane is embedded in the waterproof breathable holes, a wire conduit one is fixedly connected to the protective shell, and an elastic sealing ring one is arranged at the connection between the wire conduit one and the protective shell. A wire conduit two is fixedly connected to the protective shell, and an elastic sealing ring two is arranged at the connection between the wire conduit two and the protective shell.

[0006] As a further description of the above technical scheme:

[0007] The outer surface of the protective shell is provided with a waterproof coating, a reinforced nano-coating, and a wear-resistant layer.

[0008] As a further description of the above technical scheme:

[0009] The waterproof coating is coated on the outer surface of the protective shell, the reinforced nano-coating is located above the waterproof coating, and the wear-resistant layer is located above the reinforced nano-coating as the outermost layer.

[0010] As a further description of the above technical scheme:

[0011] The protective shell is made of a hard transparent material.

[0012] As a further description of the above technical solution:

[0013] There are multiple groups of the waterproof and breathable holes and the waterproof and breathable membrane, which are evenly distributed on the wall surface of the protective shell.

[0014] As a further description of the above technical solution:

[0015] The waterproof coating is made of polyurethane waterproof coating, and the enhanced nano - coating is made of nano - silica.

[0016] As a further description of the above technical solution:

[0017] The wear - resistant layer is made of polycarbonate film.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, through the embedded waterproof and breathable membrane, the waterproof structure realizes the dual functions of both waterproof and breathable. The unique microporous structure of the waterproof and breathable membrane allows gas molecules to pass through freely, effectively reducing the humidity inside the protective shell, avoiding the problem that the performance of the optical sensor body is affected due to too high humidity. At the same time, these micropores have an excellent blocking effect on liquid water molecules, ensuring that external moisture cannot penetrate into the protective shell, thus achieving an excellent waterproof effect. This design not only ensures the normal operation of the optical sensor but also extends its service life.

[0020] 2. In the utility model, at the wire pipes 1 and 2 fixedly connected to the protective shell, elastic sealing rings 1 and 2 are provided. These sealing rings are made of soft and durable materials, and can closely fit at the connection between the wire pipe and the protective shell, forming a reliable sealing barrier. This design effectively prevents moisture or other impurities from entering the protective shell through the wire pipe. Even in complex and changeable external environments such as temperature fluctuations and vibrations, the integrity of the seal can be maintained, thereby enhancing the reliability of the entire waterproof structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three - dimensional structure schematic diagram of a waterproof structure of an optical sensor proposed by the utility model;

[0022] Figure 2 is a partial cross - section of a waterproof structure of an optical sensor proposed by the utility model Figure 1 ;

[0023] Figure 3 is a partial cross - section of a waterproof structure of an optical sensor proposed by the utility model Figure 2 ;

[0024] Figure 4Internal structure schematic diagram of a waterproof structure for an optical sensor proposed by the present utility model.

[0025] Legend:

[0026] 1. Protective shell; 2. Optical sensor body; 3. Waterproof and breathable hole; 4. Waterproof and breathable membrane; 5. First wire conduit; 6. First elastic sealing ring; 7. Second wire conduit; 8. Second elastic sealing ring; 9. Waterproof coating; 10. Reinforced nano-coating; 11. Wear-resistant layer. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Refer to Figures 1 - 4 , an embodiment provided by the present utility model: A waterproof structure for an optical sensor includes a protective shell 1. An optical sensor body 2 is arranged inside the protective shell 1. A waterproof and breathable hole 3 is opened on the wall surface of the protective shell 1. A waterproof and breathable membrane 4 is embedded in the waterproof and breathable hole 3. A first wire conduit 5 is fixedly connected to the protective shell 1. A first elastic sealing ring 6 is provided at the connection between the first wire conduit 5 and the protective shell 1. A second wire conduit 7 is fixedly connected to the protective shell 1. A second elastic sealing ring 8 is provided at the connection between the second wire conduit 7 and the protective shell 1. Through the embedded waterproof and breathable membrane 4, this waterproof structure realizes the dual functions of both waterproof and breathable. The unique microporous structure of the waterproof and breathable membrane 4 allows gas molecules to freely pass through, effectively reducing the humidity inside the protective shell 1 and avoiding the problem of affecting the performance of the optical sensor body 2 due to excessive humidity. At the same time, these micropores have an excellent blocking effect on liquid water molecules, ensuring that external moisture cannot penetrate into the inside of the protective shell 1, thereby achieving an excellent waterproof effect. This design not only ensures the normal operation of the optical sensor but also extends its service life.

[0029] The outer surface of the protective shell 1 is provided with a waterproof coating 9, a reinforcing nano - coating 10, and a wear - resistant layer 11. The waterproof coating 9 is coated on the outer surface of the protective shell 1. The reinforcing nano - coating 10 is located above the waterproof coating 9, and the wear - resistant layer 11 is located above the reinforcing nano - coating 10 as the outermost layer. The protective shell 1 is made of a hard transparent material. Multiple groups of waterproof breathable holes 3 and waterproof breathable membranes 4 are evenly distributed on the wall surface of the protective shell 1. The waterproof coating 9 is made of polyurethane waterproof paint, the reinforcing nano - coating 10 is made of nano - silica, and the wear - resistant layer 11 is made of polycarbonate film. At the wire conduits 1 - 5 and wire conduits 2 - 7 fixedly connected to the protective shell 1, elastic sealing rings 1 - 6 and elastic sealing rings 2 - 8 are provided. These sealing rings are made of soft and durable materials and can closely fit at the connection between the wire conduit and the protective shell 1, forming a reliable sealing barrier. This design effectively prevents moisture or other impurities from entering the interior of the protective shell 1 through the wire conduit. Even in complex and changeable external environments such as temperature fluctuations and vibrations, the integrity of the seal can be maintained, thus enhancing the reliability of the entire waterproof structure.

[0030] Working principle: In the waterproof structure of the optical sensor, first of all, the core of the waterproof structure lies in the design of the protective shell 1. As a protective barrier for the optical sensor body 2, the waterproof breathable holes 3 are cleverly opened on its wall surface, and the waterproof breathable membrane 4 is embedded. This membrane has a unique microporous structure that allows tiny gas molecules to pass through freely, thus realizing the air circulation inside and outside the protective shell 1, effectively reducing the internal humidity, and avoiding the problem of affecting the performance of the optical sensor body 2 due to excessive humidity. At the same time, these micropores are impenetrable to liquid water molecules, so they can effectively block external moisture from entering the inside of the protective shell 1, achieving the waterproof effect. Secondly, in order to further enhance the waterproof performance, elastic sealing rings 6 and 8 are provided at the connection of the wire pipe 5 and the wire pipe 7 fixedly connected to the protective shell 1 with the protective shell 1. These elastic sealing rings are made of soft and durable materials, and can closely fit at the connection of the wire pipe and the protective shell 1 to form a reliable sealing barrier. Even when the external environment changes, such as temperature fluctuations, vibrations, etc., the sealing integrity can be maintained, effectively preventing moisture or other impurities from entering the inside of the protective shell 1 through the wire pipe, thus ensuring the reliability of the entire waterproof structure. In addition, multiple protective coatings are provided on the outer surface of the protective shell 1 to further improve its waterproof, wear-resistant and other properties. The waterproof coating 9, as the first line of defense, is directly coated on the outer surface of the protective shell 1. Using the polymer characteristics of waterproof materials such as polyurethane, a dense waterproof film is formed to effectively block the erosion of moisture and stains. The enhanced nano-coating 10 is located above the waterproof coating 9. By using nanotechnology, tiny particles such as nano-silica are evenly dispersed in the coating. Using the high specific surface area and special properties of these nano-particles, the density and strength of the coating are improved, further enhancing the waterproof effect. At the same time, the presence of the nano-coating can also endow the surface of the protective shell 1 with additional functions such as self-cleaning and anti-fouling. The outermost layer is the wear-resistant layer 11, which is made of high-strength and high-wear-resistant materials such as polycarbonate film. This wear-resistant layer 11 can not only effectively resist external physical wear and scratches, extend the service life of the protective shell 1, but also protect the inner waterproof coating 9 and the enhanced nano-coating 10 to a certain extent from being damaged, ensuring the long-term stability of the entire waterproof structure. Finally, in order to further improve the breathability and waterproofness of the protective shell 1, the waterproof breathable holes 3 and the waterproof breathable membrane 4 are designed into multiple groups and evenly distributed on the wall surface of the protective shell 1. This design makes the gas exchange more uniform, which is beneficial to reducing the humidity inside the protective shell 1, and at the same time ensures the comprehensiveness and reliability of the waterproof effect. Even in a complex and changeable external environment, this waterproof structure can provide stable and reliable protection for the optical sensor body 2.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An optical sensor waterproof structure, comprising a protective shell (1), characterized in that: An optical sensor body (2) is provided inside the protective shell (1). Waterproof and breathable holes (3) are formed on the wall surface of the protective shell (1), and waterproof and breathable membranes (4) are embedded in the waterproof and breathable holes (3). A first wire conduit (5) is fixedly connected to the protective shell (1), and an elastic sealing ring one (6) is provided at the connection between the first wire conduit (5) and the protective shell (1). A second wire conduit (7) is fixedly connected to the protective shell (1), and an elastic sealing ring two (8) is provided at the connection between the second wire conduit (7) and the protective shell (1).

2. The waterproof structure of an optical sensor according to claim 1, characterized in that: A waterproof coating (9), a reinforcing nano - coating (10), and a wear - resistant layer (11) are provided on the outer surface of the protective shell (1).

3. The waterproof structure of an optical sensor according to claim 2, characterized in that: The waterproof coating (9) is coated on the outer surface of the protective shell (1), the reinforcing nano - coating (10) is located above the waterproof coating (9), and the wear - resistant layer (11) is located above the reinforcing nano - coating (10) as the outermost layer.

4. An optical sensor waterproof structure according to claim 3, characterized in that: The protective shell (1) is made of a hard transparent material.

5. An optical sensor waterproof structure according to claim 4, characterized in that: Multiple groups of the waterproof and breathable holes (3) and the waterproof and breathable membranes (4) are provided and evenly distributed on the wall surface of the protective shell (1).

6. The waterproof structure of an optical sensor according to claim 5, characterized in that: The waterproof coating (9) is made of polyurethane waterproof paint, and the reinforcing nano - coating (10) is made of nano - silica.

7. An optical sensor waterproof structure according to claim 6, characterized in that: The wear - resistant layer (11) is made of polycarbonate film.

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