Acoustooptical control time delay switch and working method
By using a concealed transparent cover and a multi-reflective surface design, combined with a dustproof panel for protection, the dust problem of the sound and light controlled delay switch is solved, achieving more reliable light recognition and better aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU HONYAR ELECTRICAL CO LTD
- Filing Date
- 2022-11-23
- Publication Date
- 2026-05-12
AI Technical Summary
现有声光控延时开关的透明罩易受灰尘覆盖，导致光敏传感器失效，影响设备的可靠性和美观性。
It adopts a hidden installation transparent cover, and uses wavy and tilted reflective surfaces to reflect light to the photosensitive sensor. Combined with the double protection of the dustproof plate, it increases the light transmission path and dustproof area.
The transparent cover effectively prevents dust from contacting the device, improving the performance reliability and aesthetics of the sound and light controlled delay switch, ensuring that the photosensitive sensor accurately identifies light, and enhancing the dustproof effect of the equipment.
Smart Images
Figure CN115865064B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of light acquisition technology, and in particular to an acoustic-optical controlled delay switch and its operating method. Background Technology
[0002] Sound-and-light controlled time-delay switches are typically installed in hallways and corridors to provide automatic lighting in dimly lit environments. These switches usually incorporate a photosensitive sensor, which detects ambient light intensity and, in conjunction with sound recognition, determines whether the switch is operational. In existing technology, the photosensitive sensor is usually located on the surface of the time-delay switch and protected by a transparent cover. However, prolonged exposure to air can lead to dust accumulation on the cover, blocking light from reaching the photosensitive sensor and affecting its normal operation. This can cause the time-delay switch to malfunction, especially during renovations where dust, putty, and other debris often fall onto the cover, further contributing to the switch's failure. Summary of the Invention
[0003] The purpose of this invention is to provide an acoustic and optical controlled delay switch that overcomes the problems of poor dust protection and unreliable performance of existing acoustic and optical controlled delay switches, thereby providing effective dust protection and ensuring the performance reliability of the acoustic and optical controlled delay switch.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a sound and light controlled delay switch, comprising a base with a mounting groove, a printed circuit board disposed in the mounting groove and having a photosensitive sensor, a cover plate pressed onto the printed circuit board and having a mounting hole, and a panel pressed onto the cover plate and having a light-transmitting hole. The mounting hole is located in the middle of the cover plate and below the light-transmitting hole. A transparent cover for enclosing the photosensitive sensor is disposed in the mounting hole. A dustproof plate for covering the light-transmitting hole is disposed on the top surface of the panel. A first reflective surface for reflecting light is disposed on the bottom surface of the panel. The first reflective surface is wavy. A second reflective surface for reflecting light is disposed on the top surface of the cover plate. The second reflective surface is inclined relative to the horizontal direction of the cover plate and is respectively disposed opposite to the first reflective surface and the light-transmitting hole.
[0005] After adopting the above technical solution, the present invention has the following advantages: First, the transparent cover encasing the photosensitive sensor is placed in the mounting hole on the cover plate. The cover plate has a panel pressed against it and having a light-transmitting hole, achieving a concealed installation of the transparent cover. This effectively prevents dust and other particles in the air from contacting the transparent cover, providing a good dustproof effect. This helps ensure the performance reliability of the sound and light controlled delay switch and also increases its aesthetics. Second, the top surface of the panel has a dustproof plate for covering the light-transmitting hole, forming double protection for the transparent cover. This further prevents dust and other particles in the air from contacting the transparent cover, thus further improving the dustproof effect. Furthermore, by providing a first reflective surface and a second reflective surface... The first reflective surface is wavy, and the second reflective surface is inclined relative to the horizontal direction of the cover plate and is respectively opposite to the first reflective surface and the light-transmitting hole. This facilitates better light reflection and can also increase the light reflection path, allowing light farther away from the transparent cover to reach the photosensitive sensor. Correspondingly, the area of the dustproof plate covering the transparent cover is further increased, thus providing better dust protection.
[0006] Furthermore, the second reflective surface is located outside the mounting hole and is arranged circumferentially around the mounting hole. Adopting the above technical solution increases the light reflection coverage area, allowing light from more directions to be reflected by the second reflective surface, thereby facilitating light propagation to the photosensitive sensor and further ensuring the performance reliability of the acoustic-optical controlled delay switch.
[0007] Furthermore, the second reflective surface includes an inner reflective surface and an outer reflective surface, with the inner reflective surface being lower than and adjacent to the outer reflective surface. By adopting the above technical solution and rationally setting the second reflective surface, it is beneficial for light to reach the photosensor.
[0008] Furthermore, the transparent cover is detachably connected to the light-transmitting hole and protrudes from the second reflective surface. This technical solution facilitates the transparent cover receiving light reflected from the second reflective surface, allowing the photosensitive sensor to more accurately monitor the light intensity and thus more accurately control the operation of the acoustic-optical delay switch.
[0009] Furthermore, the mounting hole is provided with a mounting step, and the transparent cover is provided with a flange that mates with the mounting step. By adopting the above technical solution, on the one hand, a reliable connection of the transparent cover is achieved; on the other hand, the step-fit provides better sealing, thus contributing to better dust prevention.
[0010] Furthermore, the dustproof plate is located in the middle of the panel, and its horizontal projected area on the printed circuit board is larger than that of the transparent cover. By adopting the above technical solution, the dustproof plate, positioned in the middle of the panel, effectively intercepts dust, preventing it from falling due to gravity and contacting the transparent cover, thus increasing the difficulty of dust contact with the transparent cover. It also covers the transparent cover as much as possible, providing better dust protection and further ensuring the performance reliability of the sound and light controlled delay switch.
[0011] Furthermore, the light-transmitting hole is located in the center of the panel, and the dustproof plate is attached to the panel and covers a portion of the light-transmitting hole. The remaining portion of the light-transmitting hole forms a light-transmitting area, and the horizontal projection of the light-transmitting area onto the printed circuit board is located at the outer periphery of the horizontal projection of the transparent cover onto the printed circuit board. By adopting the above technical solution, on the one hand, the distance between the light-transmitting area and the transparent cover is increased, better preventing dust and effectively reducing direct contact between airborne dust and the transparent cover; on the other hand, the photosensitive sensor more accurately detects the intensity of external light, thereby ensuring the performance reliability of the sound and light controlled extension switch.
[0012] Furthermore, the light-transmitting holes are provided in at least two different sizes. By adopting the above technical solution, the reasonable setting of the number and size of the light-transmitting holes helps ensure that light can propagate to the photosensitive sensor, thereby more accurately controlling the opening or closing of the sound and light control switch. If the number of light-transmitting holes is less than two, the area of the light-transmitting holes is larger, the dustproof effect is poor, and the direction of light entering and contacting the photosensitive sensor is singular, affecting the detection accuracy of the photosensitive sensor.
[0013] Furthermore, at least two of the light-transmitting holes are arranged circumferentially around the transparent cover; or, at least two of the light-transmitting holes are arranged in a linear array along the horizontal and vertical directions of the panel. With the above technical solutions, in one solution, by arranging the light-transmitting holes circumferentially around the transparent cover, the photosensitive sensor can better receive and detect light; in another solution, the light-transmitting holes are arranged in a linear array, which is more rational and allows as much external light as possible to be transmitted to the photosensitive sensor.
[0014] Another objective of this invention is to provide a method for operating an acoustic-optical controlled delay switch. When external light passes through a light-transmitting hole, the light enters the outer reflective surface of a first reflective surface. Then, the light is reflected by the outer reflective surface of the first reflective surface to a second reflective surface. Afterward, the light is reflected by the second reflective surface to the inner reflective surface of the first reflective surface. Subsequently, the light is reflected by the inner reflective surface of the first reflective surface to a transparent cover. The light then passes through the transparent cover to a photosensitive sensor, which identifies the light and controls the printed circuit board. By adopting the above technical solution and rationally setting the operating method of the acoustic-optical controlled delay switch, the light undergoes multiple reflections before reaching the photosensitive sensor, ensuring the accuracy of the photosensitive sensor's identification and making the performance of the acoustic-optical controlled delay switch more reliable. It also increases the area of the dustproof plate covering the light-transmitting cover, thereby achieving better dust protection and further improving the reliability of the acoustic-optical controlled delay switch. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings:
[0016] Figure 1 This is a schematic diagram of the acoustic-optical controlled delay switch of the present invention;
[0017] Figure 2 For the present invention Figure 1 Enlarged view of the structure at point A in the middle;
[0018] Figure 3 This is an exploded view of the acoustic-optical controlled time delay switch of the present invention;
[0019] Figure 4 This is a schematic diagram of the structure of the middle panel of the present invention;
[0020] Figure 5 This is a partial cross-sectional view of the middle panel of the present invention;
[0021] In the diagram, 1 is the base; 11 is the mounting slot; 2 is the printed circuit board; 21 is the photosensitive sensor; 3 is the cover plate; 31 is the mounting hole; 32 is the first reflective surface; 33 is the mounting step; 4 is the transparent cover; 41 is the flange; 5 is the panel; 51 is the light-transmitting hole; 511 is the long light-transmitting hole; 512 is the short light-transmitting hole; 513 is the middle light-transmitting hole; 52 is the second reflective surface; 53 is the light-transmitting area; and 6 is the dustproof plate. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0023] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.
[0024] It should be understood that in the various embodiments of the present invention, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
[0025] It should be understood that in this invention, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0026] It should be understood that in this invention, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.
[0027] The technical solution of the present invention will be described in detail below with reference to specific embodiments. The following specific embodiments may be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.
[0028] Example 1:
[0029] like Figures 1 to 5As shown, the present invention provides an audio-visual controlled delay switch, including a base 1 with a mounting groove 11, a printed circuit board 2 disposed in the mounting groove 11 and having a photosensitive sensor 21, a cover plate 3 pressed onto the printed circuit board 2 and having a mounting hole 31, and a panel 5 pressed onto the cover plate 3 and having a light-transmitting hole 51. The mounting hole 31 is located in the middle of the cover plate 3 and below the light-transmitting hole 51. A transparent cover 4 for wrapping the photosensitive sensor 21 is disposed in the mounting hole 31. A dustproof plate 6 for covering the light-transmitting hole 51 is disposed on the top surface of the panel 5. A first reflective surface 32 for reflecting light is disposed on the bottom surface of the panel 5. The first reflective surface 32 is wavy. A second reflective surface 52 for reflecting light is disposed on the top surface of the cover plate 3. The second reflective surface 52 is inclined relative to the horizontal direction of the cover plate 3 and is respectively disposed opposite to the first reflective surface 32 and the light-transmitting hole 51.
[0030] First, the transparent cover 4 encasing the photosensitive sensor 21 is placed inside the mounting hole 31 on the cover plate 3. The cover plate 3 has a panel 5 that is pressed against the cover plate 3 and has a light-transmitting hole 51, achieving a concealed installation of the transparent cover 4. This effectively prevents dust and other particles in the air from contacting the transparent cover 4, providing a good dustproof effect. This helps ensure the performance reliability of the sound and light controlled delay switch and also increases the aesthetics of the sound and light controlled delay switch. Second, the top surface of the panel 5 has a dustproof plate 6 for covering the light-transmitting hole 51, forming a double protection for the transparent cover 4. This further prevents dust and other particles in the air from contacting the transparent cover 4, thus further improving the dustproof effect. Finally, by providing a first reflective surface 32 and a second reflective surface 52, light is reflected... The light is transmitted to the photosensitive sensor 21, which helps to further ensure the performance reliability of the sound and light controlled delay switch. Correspondingly, it can also increase the area of the dustproof plate 6 covering the transparent cover 4, which can better protect the transparent cover 4 from dust, thereby better ensuring the performance reliability of the sound and light controlled delay switch. Finally, the first reflective surface 32 is wavy, and the second reflective surface 52 is inclined relative to the horizontal direction of the cover plate 3 and is respectively opposite to the first reflective surface 32 and the light-transmitting hole 51. This can help to better realize the light reflection. It can also increase the light reflection path so that light that is far away from the transparent cover 4 can also be transmitted to the photosensitive sensor 21. Correspondingly, it can further increase the area of the dustproof plate 6 covering the transparent cover 4, thereby further improving the dust protection effect.
[0031] It should be noted that the printed circuit board 2 is connected to the base 1 by screws, the cover plate 3 is snapped into the mounting groove 11, and the panel 5 is snapped into the base 1. Of course, in other embodiments, other reasonable connection methods may also be used.
[0032] To further enhance dust prevention, the dustproof plate 6 is positioned in the center of the panel 5. The horizontal projected area of the dustproof plate 6 on the printed circuit board 2 is larger than that of the transparent cover 4 on the printed circuit board 2. By positioning the dustproof plate 6 in the center of the panel 5, dust is effectively intercepted, preventing it from falling due to gravity and contacting the transparent cover 4. This increases the difficulty for dust to come into contact with the transparent cover 4 and allows for more comprehensive coverage of the transparent cover 4, resulting in better dust prevention and further ensuring the performance and reliability of the sound and light controlled delay switch.
[0033] To ensure the reliability of the sound and light controlled delay switch, a light-transmitting hole 51 is located in the center of the panel 5. A dustproof plate 6 is attached to the panel 5 and covers a portion of the light-transmitting hole 51. The remaining portion of the light-transmitting hole 51 forms a light-transmitting area 53. The horizontal projection of the light-transmitting area 53 onto the printed circuit board 2 is located on the outer periphery of the horizontal projection of the transparent cover 4 onto the printed circuit board 2. On the one hand, increasing the distance between the light-transmitting area 53 and the transparent cover 4 better serves the dustproof function, reducing the direct contact of dust in the air with the transparent cover 4. On the other hand, the photosensitive sensor 21 more accurately detects the intensity of external light, thereby ensuring the reliability of the sound and light controlled delay switch.
[0034] In this embodiment, at least two light-transmitting holes 51 are provided, and they are of different sizes. Reasonably setting the number and size of the light-transmitting holes 51 helps ensure that light can propagate to the photosensitive sensor 21, thereby more accurately controlling the opening or closing of the sound and light control switch. The number of light-transmitting holes 51 can be three, four, five, or other reasonable amounts. The light-transmitting holes 51 include a long light-transmitting hole 511, a short light-transmitting hole 512, and a middle light-transmitting hole 513.
[0035] To further ensure the performance reliability of the sound and light controlled delay switch, in one embodiment, at least two light-transmitting holes 51 are arranged circumferentially around the transparent cover 4, so that the photosensitive sensor 21 can accurately receive and detect light.
[0036] In another embodiment, at least two light-transmitting holes 51 are arranged in a linear array along the horizontal and vertical directions of the horizontal plane of the panel 5. This arrangement of the light-transmitting holes 51 is more rational, allowing as much external light as possible to be transmitted to the photosensor 21.
[0037] Furthermore, the second reflective surface 52 is located outside the mounting hole 31 and is arranged circumferentially around the mounting hole 31. This increases the light reflection coverage area, allowing light from more directions to be reflected by the second reflective surface 52, thereby facilitating the propagation of light to the photosensitive sensor 21 and further ensuring the performance reliability of the acoustic-optical time-delay switch.
[0038] In this embodiment, the second reflective surface 52 includes an inner reflective surface and an outer reflective surface, with the inner reflective surface being lower than and adjacent to the outer reflective surface. Properly arranging the second reflective surface 52 facilitates the delivery of light to the photosensor 21.
[0039] To better receive the light reflected from the second reflective surface 52, the transparent cover 4 is detachably connected to the light-transmitting hole 51 and protrudes from the second reflective surface 52. This facilitates the transparent cover 4 in receiving the light reflected from the second reflective surface 52, thereby enabling the photosensitive sensor 21 to more accurately monitor the intensity of the light, and thus more accurately control the operation and inactivity of the sound and light control delay switch.
[0040] To ensure more reliable installation of the transparent cover 4, an installation step 33 is provided inside the mounting hole 31, and a flange 41 that mates with the installation step 33 is provided on the transparent cover 4. On the one hand, this ensures a reliable connection of the transparent cover 4; on the other hand, the step provides better sealing, thus enhancing dust prevention.
[0041] Example 2:
[0042] In this embodiment, a sound and light controlled delay switch operates as follows: when external light passes through the light-transmitting hole 51, the light enters the outer reflective surface of the first reflective surface 32. Then, the light is reflected by the outer reflective surface of the first reflective surface 32 onto the second reflective surface 52. After that, the light is reflected by the second reflective surface 52 onto the inner reflective surface of the first reflective surface 32. After that, the light is reflected by the inner reflective surface of the first reflective surface 32 onto the transparent cover 4. The light passes through the transparent cover 4 to the photosensitive sensor 21. The photosensitive sensor 21 identifies the light and controls the printed circuit board 2.
[0043] By reasonably setting the working method of the sound and light controlled delay switch, the light is reflected multiple times before reaching the photosensitive sensor 21, ensuring the accuracy of the photosensitive sensor 21's recognition and making the performance of the sound and light controlled delay switch more reliable. It can also increase the area of the dustproof plate 6 covering the light-transmitting cover, thereby achieving better dustproof effect and further making the performance of the sound and light controlled delay switch more reliable.
[0044] It should be noted that the light trails can be referenced. Figure 1 The direction of the middle arrow.
[0045] Other content not described in this embodiment can be found in Embodiment 1.
[0046] In addition to the preferred embodiments described above, the present invention has other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection claimed by the present invention.
Claims
1. A sound and light controlled delay switch, comprising a base with a mounting groove, a printed circuit board disposed in the mounting groove and having a photosensitive sensor, a cover plate pressed onto the printed circuit board and having mounting holes, and a panel pressed onto the cover plate and having light-transmitting holes, characterized in that, The mounting hole is located in the middle of the cover plate and below the light-transmitting hole. A transparent cover for enclosing the photosensitive sensor is installed inside the mounting hole. The top surface of the panel is provided with a dustproof plate for covering the light-transmitting hole. The bottom surface of the panel is provided with a first reflective surface for reflecting light. The first reflective surface is wavy. The top surface of the cover plate is provided with a second reflective surface for reflecting light. The second reflective surface is inclined relative to the horizontal direction of the cover plate and is respectively opposite to the first reflective surface and the light-transmitting hole. The second reflective surface includes an inner reflective surface and an outer reflective surface. The inner reflective surface is lower than the outer reflective surface and adjoins the outer reflective surface. The dustproof plate is located in the middle of the panel. The horizontal projection area of the dustproof plate on the printed circuit board is larger than the horizontal projection area of the transparent cover on the printed circuit board. The light-transmitting hole is located in the middle of the panel. The dustproof plate is attached to the panel and covers part of the light-transmitting hole. The other part of the light-transmitting hole forms a light-transmitting area. The horizontal projection of the light-transmitting area on the printed circuit board is located on the outer periphery of the horizontal projection of the transparent cover on the printed circuit board.
2. The sound-and-light controlled delay switch according to claim 1, characterized in that, The second reflective surface is located outside the mounting hole and is arranged circumferentially around the mounting hole.
3. The sound-and-light controlled delay switch according to claim 2, characterized in that, The transparent cover is detachably connected to the light-transmitting hole and protrudes from the second reflective surface.
4. The sound-and-light controlled delay switch according to claim 3, characterized in that, The mounting hole is provided with a mounting step, and the transparent cover is provided with a flange that mates with the mounting step.
5. The sound-and-light controlled delay switch according to claim 1, characterized in that, The light-transmitting holes are provided in at least two different sizes.
6. The sound-and-light controlled delay switch according to claim 5, characterized in that, At least two of the light-transmitting holes are arranged circumferentially around the transparent cover; or, at least two of the light-transmitting holes are arranged in a linear array along the horizontal and vertical directions of the horizontal plane of the panel.
7. A method for operating a sound-optical controlled time-delay switch as described in any one of claims 1-6, characterized in that, When external light passes through the light-transmitting hole, 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 to the first reflective surface. After that, the light is reflected by the first reflective surface to the inner reflective surface of the second reflective surface. After that, the light is reflected by the inner reflective surface of the second reflective surface to the transparent cover. The light passes through the transparent cover to the photosensitive sensor. The photosensitive sensor determines the intensity of the light and controls the printed circuit board.