CN-115865064-B - Acousto-optic control time delay switch and working method

Abstract

The invention discloses an acousto-optic control delay switch and a working method, which belong to the technical field of light acquisition and solve the problems of poor dust prevention and unreliable performance, the technical proposal for solving the problems mainly comprises a base with a mounting groove, a printed board which is arranged in the mounting groove and is provided with a photosensitive sensor, a cover plate which is pressed on the printed board and is provided with a mounting hole, and a panel which is pressed on the cover plate and is provided with a light hole, the mounting hole is located the intermediate position of apron and is located the below of light trap, is equipped with the translucent cover that is used for wrapping up photosensitive sensor in the mounting hole, and the top surface of panel is equipped with the dust guard that is used for covering the light trap, and the bottom surface of panel is equipped with the first reflecting surface that is used for reflecting light, and the top surface of apron is equipped with the second reflecting surface that is used for reflecting light, and the second reflecting surface sets up and sets up relatively with first reflecting surface and light trap respectively for the horizontal direction slope of apron. The invention is mainly used for playing an effective dustproof role and is beneficial to guaranteeing the performance reliability of the acousto-optic control delay switch.

Inventors

• NIE SHAOJIANG
• WEN TAO
• YANG TAO

Assignees

• 杭州鸿雁电器有限公司

Dates

Publication Date

20260512

Application Date

20221123

Claims (7)

1. 1. The utility model provides an acousto-optic control time delay switch, including the base that has the mounting groove, locate the mounting groove in and have photosensitive sensor's printed plate, the pressfitting just is equipped with the apron of mounting hole on the printed plate, and the pressfitting just is equipped with the panel of light trap on the apron, a serial communication port, the intermediate position of apron is located to the mounting hole and is located the below of light trap, be equipped with the translucent cover that is used for parcel photosensitive sensor in the mounting hole, the top surface of panel is equipped with the dust guard that is used for covering the light trap, the bottom surface of panel is equipped with the first reflector that is used for reflecting light, first reflector is wavy, the top surface of apron is equipped with the second reflector that is used for reflecting light, the second reflector sets up and sets up relatively with first reflector and light trap respectively for the horizontal direction slope of apron, the inboard reflector is less than outside reflector and with outside reflector junction, the intermediate position of panel is located to the dust guard, the horizontal projection area of dust guard at the printed plate is greater than the horizontal projection area of transparent cover at the printed plate, the intermediate position of panel is located the panel laminating and the panel and forms the translucent projection outside the light trap, the translucent cover is located the translucent projection outside the translucent area of other parts.
2. 2. The acousto-optic controlled delay switch of claim 1 wherein said second reflecting surface is located outside of the mounting hole and circumferentially around the mounting hole.
3. 3. The acousto-optic controlled delay switch according to claim 2, wherein the transparent cover is detachably connected to the light hole and protrudes from the second reflecting surface.
4. 4. A sound and light controlled time delay switch as claimed in claim 3 wherein the mounting hole has a mounting step and the transparent cover has a flange for engaging with the mounting step.
5. 5. The acousto-optic controlled delay switch of claim 1 wherein said light transmitting aperture is provided in at least two different sizes.
6. 6. The acousto-optic controlled delay switch according to claim 5 wherein at least two of said light transmitting holes are arranged circumferentially around the transparent cover or at least two of said light transmitting holes are arranged in a linear array in the transverse and longitudinal directions of the horizontal plane of the panel.
7. 7. A method of operating an acousto-optic controlled delay switch according to any of claims 1 to 6 wherein after ambient light passes through the aperture, the light enters the outer reflective surface of the second reflective surface, then the light is reflected by the outer reflective surface of the second reflective surface onto the first reflective surface, then the light is reflected by the first reflective surface onto the inner reflective surface of the second reflective surface, then the light is reflected by the inner reflective surface of the second reflective surface onto the transparent cover, and the light passes through the transparent cover onto the photo sensor, and the photo sensor determines the intensity of the light and controls the printed board.

Description

Acousto-optic control time delay switch and working method Technical Field The invention relates to the technical field of light collection, in particular to an acousto-optic control time delay switch and a working method thereof. Background Acousto-optic controlled time delay switches are commonly installed in aisles, hallways, and provide automatic illumination in low light environments. The acousto-optic control delay switch is usually provided with a photosensitive sensor, and the photosensitive sensor judges whether the acousto-optic control delay switch works or not by detecting the intensity of surrounding light and matching with voice recognition. In the prior art, the photosensitive sensor is usually arranged on the surface of the acousto-optic control delay switch, and a transparent cover is arranged to protect the photosensitive sensor. But the transparent cover is exposed in the air for a long time, and dust can cover the transparent cover, blocks light from entering the photosensitive sensor, so that the normal work of the photosensitive sensor is influenced, the acousto-optic control time delay switch is disabled, and a large amount of objects such as decoration dust, putty powder and the like can fall onto the transparent cover in the decoration process, so that the acousto-optic control time delay switch is disabled. Disclosure of Invention The invention aims to provide the acousto-optic control delay switch, which solves the problems of poor dustproof performance and unreliable performance of the acousto-optic control delay switch in the prior art, plays an effective dustproof role and is beneficial to guaranteeing the performance reliability of the acousto-optic control delay switch. In order to achieve the aim, the acousto-optic control time delay switch comprises a base with a mounting groove, a printed board which is arranged in the mounting groove and is provided with a photosensitive sensor, a cover plate which is pressed on the printed board and is provided with a mounting hole, and a panel which is pressed on the cover plate and is provided with a light transmitting hole, wherein the mounting hole is arranged in the middle of the cover plate and is arranged below the light transmitting hole, a transparent cover for wrapping the photosensitive sensor is arranged in the mounting hole, a dust-proof plate for covering the light transmitting hole is arranged on the top surface of the panel, a first reflecting surface for reflecting light is arranged on the bottom surface of the panel, the first reflecting surface is wavy, a second reflecting surface for reflecting light is arranged on the top surface of the cover plate, and the second reflecting surface is obliquely arranged relative to the horizontal direction of the cover plate and is respectively opposite to the first reflecting surface and the light transmitting hole. After the technical scheme is adopted, the invention has the advantages that firstly, the transparent cover wrapping the photosensitive sensor is arranged in the mounting hole on the cover plate, the cover plate is provided with the panel which is pressed on the cover plate and is provided with the light-transmitting hole, the hidden mounting of the transparent cover is realized, the contact transparent cover is effectively separated from dust, dust and the like in the air, the better dustproof effect is achieved, the performance reliability of the acousto-optic control delay switch is guaranteed, the aesthetic property of the acousto-optic control delay switch can be increased, secondly, the top surface of the panel is provided with the dustproof plate for covering the light-transmitting hole, double protection of the transparent cover is formed, the contact transparent cover such as dust and dust in the air is further separated, the better dustproof effect is further achieved, the light is transmitted to the photosensitive sensor through the first reflecting surface and the second reflecting surface, the area of the dustproof plate is also increased, the better dustproof effect is achieved on the transparent cover, the final performance reliability of the acousto-optic control delay switch is guaranteed, the first reflecting surface is also inclined relative to the corresponding reflecting surface, the light is further arranged, the light is transmitted to the photosensitive sensor, and the corresponding light is further transmitted to the transparent cover, and the light is further inclined relative to the transparent cover, and the light-transmitting path is better. Further, the second reflecting surface is arranged on the outer side of the mounting hole and circumferentially surrounds the mounting hole. After the technical scheme is adopted, the light reflection coverage surface is increased, more directional light can obtain the reflection of the second reflection surface, so that the light can be transmitted to the photosensitive sensor, and the performance relia