A connecting base for a separate patch pyroelectric sensor

Abstract

The application relates to the technical field of infrared sensor, and discloses a connecting base for a separated patch pyroelectric sensor, which comprises a base body, a side plate fixedly connected to the outer wall of the base body, a fixed shell fixedly connected to the outer wall of the base body, a fixed block fixedly connected to the outer wall of the fixed shell, a moving shell arranged on the outer wall of the fixed shell, a moving block fixedly connected to the outer wall of the moving shell, a sliding shaft fixedly connected to the inside of the fixed block, a first spring fixedly connected to the outer wall of the fixed block, a supporting plate fixedly connected to the outer wall of the sliding shaft, and a rotating column rotatably connected to the inner wall of the side plate. The rotating column drives a pressure block to rotate and extrude the moving shell, the moving shell drives the moving block to slide, the moving block extrudes the first spring to slide, and the moving shell and the fixed shell fix the base body and a sensor body, so that the base body and the sensor body can be installed without welding, and the pyroelectric sensor can be directly pulled out and replaced.

Description

Technical Field

[0001] This invention relates to the field of infrared sensor technology, specifically to a connecting base for a split-type patch pyroelectric sensor. Background Technology

[0002] A pyroelectric sensor is a sensor that uses the pyroelectric effect to detect target objects. The pyroelectric effect refers to the phenomenon in some materials where the internal charge distribution changes when the material is affected by heat or radiation energy, resulting in a voltage signal. Pyroelectric sensors are usually made of thermosensitive materials, such as pyroelectric ceramics or polymers. When a target object passes through the sensor, the thermosensitive material of the sensor is affected by the thermal radiation or temperature change of the target object, thereby generating a change in charge, which is ultimately converted into a voltage signal. This voltage signal can be measured and analyzed, thereby realizing the detection, tracking, or measurement of the target object. Pyroelectric sensors are commonly used in security systems, human body detection, automatic door control, intelligent lighting control, and other fields. They have the characteristics of fast response, high sensitivity, strong adaptability, and no effect from light, and have a wide range of applications. The split-type patch pyroelectric sensor is a special type of pyroelectric sensor. Its characteristic is that the sensor chip and the connecting base are designed separately. The sensor chip is usually a thin chip with pyroelectric elements and circuits mounted on it, while the connecting base is the supporting structure of the sensor chip, used to install and fix the sensor chip, and to provide a circuit connection interface.

[0003] A pyroelectric infrared sensor, disclosed in publication number CN114323292A, relates to the field of infrared sensor technology. It includes a cap and a substrate. A window is provided on the upper surface of the cap, and an infrared filter is embedded in the window. The substrate is assembled with the cap, and the cap has a receiving space containing an infrared sensing element and signal processing components. Both the infrared sensing element and the signal processing components are directly fixed to the substrate. A connector is also provided on the substrate and electrically connected to the substrate. The connector is used to realize the external electrical connection and assembly of the pyroelectric infrared sensor. The pyroelectric infrared sensor using the above technical solution is ingeniously designed, has a simple structure, and high integration, which helps to simplify the manufacturing and application processes of the sensor, improve the automation efficiency of production and testing, reduce the complexity and design difficulty of the application structure, and also has significant advantages in thermal stability and electromagnetic interference resistance.

[0004] The aforementioned application features a clever design, simple structure, and high integration, which helps simplify the manufacturing and application processes of sensors, improve the efficiency of production and testing automation, and reduce the complexity and design difficulty of application structures. It also has significant advantages in thermal stability and electromagnetic interference resistance. However, it does not consider that ease of use and replacement of the connecting base would make the installation and replacement of pyroelectric sensors simpler and faster. Users only need to insert the sensor into the base without welding or other complex installation steps, which can also reduce the risk of damage to the sensor during installation and use. Therefore, a connecting base for a split-type patch pyroelectric sensor is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a connecting base for a split-type patch pyroelectric sensor, which solves the problems of the existing connecting base welding method being very troublesome to replace and easily damaging components.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a connecting base for a detachable patch pyroelectric sensor, comprising a base body, a side plate fixedly connected to the outer wall of the base body, a fixed shell fixedly connected to the outer wall of the base body, a fixed block fixedly connected to the outer wall of the fixed shell, a movable shell provided on the outer wall of the fixed shell, a movable block fixedly connected to the outer wall of the movable shell, a sliding shaft fixedly connected inside the fixed block, the outer wall of the sliding shaft slidably connected to the inner wall of the movable block, a first spring fixedly connected to the outer wall of the fixed block, one end of the first spring fixedly connected to the outer wall of the movable block, the inner wall of the first spring slidably connected to the outer wall of the sliding shaft, a support plate fixedly connected to the outer wall of the sliding shaft, a rotating column rotatably connected to the inner wall of the side plate, a pressure block fixedly connected to the outer wall of the rotating column, the outer wall of the pressure block slidably connected to the outer wall of the movable shell, and a sensing component provided on the inner wall of the base body.

[0007] Preferably, the sensing component includes a sensor body, the outer wall of which is slidably connected to the inner wall of the base body, and a tube cap is fixedly connected to the upper surface of the sensor body, with a window provided on the upper surface of the tube cap.

[0008] Preferably, a first support column is fixedly connected inside the fixed shell, a first connecting shaft is rotatably connected to the inner wall of the first support column, a connecting plate is fixedly connected to the outer wall of the first connecting shaft, and a pressure plate is fixedly connected to the upper surface of the connecting plate.

[0009] Preferably, the inner wall of the first support column is rotatably connected to a second connecting shaft, the outer wall of the second connecting shaft is fixedly connected to a first sleeve, and the outer wall of the first sleeve is fixedly connected to a lead screw.

[0010] Preferably, the pressure plate has a groove inside, and the outer wall of the lead screw is slidably connected to the inside of the groove.

[0011] Preferably, the outer wall of the lead screw is threadedly connected to a second sleeve, the lower surface of the second sleeve is slidably connected to the upper surface of the pressure plate, and the lower surface of the pressure plate is disposed on the upper surface of the sensor body.

[0012] Preferably, a support rod is fixedly connected inside the base body, a third sleeve is slidably connected to the outer wall of the support rod, and a second spring is slidably connected to the outer wall of the support rod.

[0013] Preferably, the outer wall of the third sleeve is rotatably connected to a connecting block, the inner wall of the connecting block is rotatably connected to a third connecting shaft, and the outer wall of the third connecting shaft is rotatably connected to a second support column.

[0014] Preferably, a buffer plate is fixedly connected to the upper surface of the second support column, and a buffer shaft is fixedly connected to the lower surface of the buffer plate.

[0015] Preferably, a third spring is fixedly connected to the outer wall of the buffer shaft, and the bottom end of the third spring is fixedly connected to the outer wall of the support rod.

[0016] Working principle: When the base is needed, first slide the sensor body to the inner wall of the base body. After the sensor body slides to the appropriate position, rotate the rotating column on the inner wall of the side plate. When the outer wall of the rotating column rotates on the inner wall of the side plate, it will drive the pressure block on its outer wall to rotate. When the pressure block is driven to rotate by the rotating column, it will press the outer wall of the moving shell under the support of the support plate. When the moving shell is pressed by the pressure block, it will drive the moving block on its outer wall to slide. When the inner wall of the moving block slides on the outer wall of the sliding shaft, it will compress the first spring that presses the outer wall. When the first spring is compressed, the inner wall will slide on the outer wall of the sliding shaft. Finally, when the outer wall of the moving shell slides to the outer wall of the fixed shell, it will press the base body on its inner wall. The sensor body is clamped and fixed inside, thus achieving the effect of quickly fixing the outer wall of the sensor body to the inner wall of the base body. When it is necessary to strengthen the fixation of the sensor body to the inner wall of the base body, the second sleeve on the outer wall of the lead screw is rotated. When the inner wall of the second sleeve rotates on the outer wall of the lead screw, it will press down on the pressure plate. When the lower surface of the second sleeve presses down on the pressure plate, it will drive the outer wall of the lead screw to slide on the inner wall of the slide groove. When the pressure plate is pressed down by the second sleeve and descends, it will drive the connecting plate on its outer wall to rotate. When the connecting plate rotates, it will drive the first connecting shaft on its inner wall to rotate. The outer wall of the first connecting shaft rotates on the inner wall of the first support column. When the outer wall of the lead screw slides inside the slide groove, it will drive the first connecting shaft at its bottom end to rotate. A sleeve rotates, and when the first sleeve is driven to rotate by the lead screw, it drives the second connecting shaft on its inner wall to rotate. The outer wall of the second connecting shaft rotates on the inner wall of the first support column. When the outer wall of the pressure plate descends to the upper surface of the sensor body, it will lock and fix it. When the base is vibrated, the sensor body will press down on the buffer plate on its lower surface. When the buffer plate is pressed down by the sensor body and descends, it will drive the buffer shaft on its lower surface to descend. When the buffer shaft descends, it will press down on the third spring on its outer wall and compress it. When the third spring is compressed, its bottom end will be compressed and damped by the support rod. When the buffer plate is pressed down by the sensor body and descends, it will drive the second support column at its bottom end to descend. During descent, the third connecting shaft on its inner wall rotates. When the outer wall of the third connecting shaft rotates on the inner wall of the second support column, it simultaneously rotates on the inner wall of the connecting block. When the outer wall of the third connecting shaft rotates on the inner wall of the connecting block, it drives the connecting block to rotate. When the outer wall of the connecting block rotates on the inner wall of the third sleeve, it drives the third sleeve to slide. When the inner wall of the third sleeve slides on the outer wall of the support rod, it compresses the second spring on its outer wall. This compression of the second spring alleviates the vibration experienced by the sensor body. This not only allows for direct removal and replacement of the pyroelectric sensor, simplifying the installation and maintenance process and reducing labor and time costs, but also minimizes damage and material waste caused by welding.This dual-fixation method effectively prevents accidental movement or detachment of the sensor, especially in applications requiring long-term monitoring. It improves system reliability and durability. Finally, it effectively reduces the interference of external vibrations on the sensor's performance and accuracy, ensuring stable operation in various environments.

[0017] This invention provides a connecting base for a detachable patch pyroelectric sensor. It offers the following advantages: 1. This invention utilizes the principle that when the rotating column rotates, it drives the pressure block to rotate. The pressure block, supported by the support plate, presses against the moving shell. The moving shell then drives the moving block to slide. The moving block presses against the inner wall of the first spring, causing it to slide against the outer wall of the sliding shaft. Finally, the moving shell and the fixed shell clamp and fix the base body and the sensor body. This allows for the installation of the base body and the sensor body without welding, and the pyroelectric sensor can be directly removed and replaced. This simplifies the installation and maintenance process, reduces labor and time costs, and minimizes damage and material waste caused by welding.

[0018] 2. This invention uses the rotation of the second sleeve to press down the pressure plate. The pressure plate causes the lead screw to slide on the inner wall of the groove. The pressure plate then causes the connecting plate to rotate, which in turn causes the first connecting shaft to rotate on the inner wall of the first support column. The lead screw causes the first sleeve to rotate, and the first sleeve causes the second connecting shaft to rotate on the inner wall of the first support column. The pressure plate clamps and fixes the sensor body, thereby achieving double fixation of the sensor and effectively preventing it from moving or falling off accidentally. Especially in applications requiring long-term monitoring, this can improve the reliability and durability of the system.

[0019] 3. This invention uses a sensor body to press down on a buffer plate, causing a buffer shaft to descend. The buffer shaft then presses down on a third spring to compress and dampen vibrations. Simultaneously, the buffer plate causes the second support column to descend, which in turn causes the third connecting shaft to rotate. The third connecting shaft then causes the connecting block to rotate, and the connecting block causes the third sleeve to slide and compress the second spring. When the second spring is compressed, it alleviates the vibration experienced by the sensor body, thereby effectively reducing the interference of external vibrations on the sensor's performance and accuracy, ensuring that the sensor can work stably in various environments. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the base body of the present invention; Figure 3 This is a schematic diagram of the fixing shell of the present invention; Figure 4 This is a schematic diagram of the first support pillar of the present invention; Figure 5 This is a schematic diagram of the first connecting shaft of the present invention; Figure 6 This is a schematic diagram of the support rod of the present invention; Figure 7 This is a schematic diagram of the second spring of the present invention.

[0021] The components are as follows: 1. Base body; 2. Side plate; 3. Fixed shell; 4. Fixed block; 5. Moving shell; 6. Moving block; 7. Sliding shaft; 8. First spring; 9. Support plate; 10. Rotating column; 11. Pressure block; 12. Sensor body; 13. Pipe cap; 14. Window; 15. First support column; 16. First connecting shaft; 17. Connecting plate; 18. Pressure plate; 19. Second connecting shaft; 20. First sleeve; 21. Lead screw; 22. Slide groove; 23. Second sleeve; 24. Support rod; 25. Third sleeve; 26. Second spring; 27. Connecting block; 28. Third connecting shaft; 29. ​​Second support column; 30. Buffer plate; 31. Buffer shaft; 32. Third spring. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a connecting base for a split-type patch pyroelectric sensor, including a base body 1, a side plate 2 fixedly connected to the outer wall of the base body 1, a fixed shell 3 fixedly connected to the outer wall of the base body 1, a fixed block 4 fixedly connected to the outer wall of the fixed shell 3, a movable shell 5 provided on the outer wall of the fixed shell 3, a movable block 6 fixedly connected to the outer wall of the movable shell 5, a sliding shaft 7 fixedly connected inside the fixed block 4, the outer wall of the sliding shaft 7 slidably connected to the inner wall of the movable block 6, a first spring 8 fixedly connected to the outer wall of the fixed block 4, one end of the first spring 8 fixedly connected to the outer wall of the movable block 6, the inner wall of the first spring 8 slidably connected to the outer wall of the sliding shaft 7, a support plate 9 fixedly connected to the outer wall of the sliding shaft 7, a rotating column 10 rotatably connected to the inner wall of the side plate 2, a pressure block 11 fixedly connected to the outer wall of the rotating column 10, the outer wall of the pressure block 11 slidably connected to the outer wall of the movable shell 5, and a sensing component provided on the inner wall of the base body 1. Specifically, rotating the rotating column 10 causes the pressure block 11 to rotate. When the pressure block 11 rotates, it squeezes the movable shell 5 under the support of the support plate 9. When the movable shell 5 is squeezed, it causes the movable block 6 to slide. When the movable block 6 slides, it squeezes the first spring 8 and compresses it. The inner wall of the first spring 8 slides on the outer wall of the sliding shaft 7. Finally, when the movable shell 5 slides to the outer wall of the fixed shell 3, it clamps and fixes the base body 1 and the sensor body 12 inside it, thereby achieving the effect of quickly fixing the outer wall of the sensor body 12 to the inner wall of the base body 1.

[0024] Please see the appendix Figure 3 - Appendix Figure 5 The sensing assembly includes a sensor body 12, the outer wall of which is slidably connected to the inner wall of the base body 1, and a cap 13 is fixedly connected to the upper surface of the sensor body 12. A window 14 is provided on the upper surface of the cap 13. A first support column 15 is fixedly connected inside the fixed shell 3. A first connecting shaft 16 is rotatably connected to the inner wall of the first support column 15. A connecting plate 17 is fixedly connected to the outer wall of the first connecting shaft 16. A pressure plate 18 is fixedly connected to the upper surface of the connecting plate 17. A second connecting shaft 19 is rotatably connected to the inner wall of the first support column 15. A first sleeve 20 is fixedly connected to the outer wall of the second connecting shaft 19. A lead screw 21 is fixedly connected to the outer wall of the first sleeve 20. A sliding groove 22 is provided inside the pressure plate 18. The outer wall of the lead screw 21 is slidably connected to the inside of the sliding groove 22. A second sleeve 23 is threadedly connected to the outer wall of the lead screw 21. The lower surface of the second sleeve 23 is slidably connected to the upper surface of the pressure plate 18. The lower surface of the pressure plate 18 is provided on the upper surface of the sensor body 12. Specifically, rotating the second sleeve 23 will press down the pressure plate 18, which will cause the lead screw 21 to slide on the inner wall of the slide groove 22. When the pressure plate 18 descends, it will cause the connecting plate 17 to rotate. When the connecting plate 17 rotates, it will cause the outer wall of the first connecting shaft 16 to rotate on the inner wall of the first support column 15. When the lead screw 21 slides, it will cause the first sleeve 20 to rotate. When the first sleeve 20 rotates, it will cause the outer wall of the second connecting shaft 19 to rotate on the inner wall of the first support column 15. When the pressure plate 18 descends to the upper surface of the sensor body 12, it will lock and fix it.

[0025] Please see the appendix Figure 6 - Appendix Figure 7A support rod 24 is fixedly connected inside the base body 1. A third sleeve 25 is slidably connected to the outer wall of the support rod 24. A second spring 26 is slidably connected to the outer wall of the support rod 24. A connecting block 27 is rotatably connected to the outer wall of the third sleeve 25. A third connecting shaft 28 is rotatably connected to the inner wall of the connecting block 27. A second support column 29 is rotatably connected to the outer wall of the third connecting shaft 28. A buffer plate 30 is fixedly connected to the upper surface of the second support column 29. A buffer shaft 31 is fixedly connected to the lower surface of the buffer plate 30. A third spring 32 is fixedly connected to the outer wall of the buffer shaft 31. The bottom end of the third spring 32 is fixedly connected to the outer wall of the support rod 24. Specifically, when the base is subjected to vibration, the sensor body 12 will press down on the buffer plate 30, which will drive the buffer shaft 31 to descend. When the buffer shaft 31 descends, it will compress the third spring 32. The bottom end of the third spring 32 will be compressed and damped by the support rod 24. At the same time as the buffer plate 30 descends, it will drive the second pillar 29 to descend. When the second pillar 29 descends, it will drive the third connecting shaft 28 to rotate. When the third connecting shaft 28 rotates, it will drive the connecting block 27 to rotate. When the connecting block 27 rotates, it will drive the third sleeve 25 to slide. When the third sleeve 25 slides, it will squeeze the second spring 26. When the second spring 26 is compressed, it will alleviate the vibration of the sensor body 12.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connecting base for a detachable patch pyroelectric sensor, comprising a base body (1), characterized in that, A side plate (2) is fixedly connected to the outer wall of the base body (1). A fixed shell (3) is fixedly connected to the outer wall of the base body (1). A fixed block (4) is fixedly connected to the outer wall of the fixed shell (3). A movable shell (5) is provided on the outer wall of the fixed shell (3). A movable block (6) is fixedly connected to the outer wall of the movable shell (5). A sliding shaft (7) is fixedly connected inside the fixed block (4). The outer wall of the sliding shaft (7) is slidably connected to the inner wall of the movable block (6). A fixed plate (2) is fixedly connected to the outer wall of the fixed block (4). The first spring (8) has one end fixedly connected to the outer wall of the moving block (6), and the inner wall of the first spring (8) is slidably connected to the outer wall of the sliding shaft (7). The outer wall of the sliding shaft (7) is fixedly connected to a support plate (9). The inner wall of the side plate (2) is rotatably connected to a rotating column (10). The outer wall of the rotating column (10) is fixedly connected to a pressure block (11). The outer wall of the pressure block (11) is slidably connected to the outer wall of the moving shell (5). The inner wall of the base body (1) is provided with a sensing component.

2. The connecting base for a detachable patch pyroelectric sensor according to claim 1, characterized in that, The sensing component includes a sensor body (12), the outer wall of which is slidably connected to the inner wall of the base body (1), and a cap (13) is fixedly connected to the upper surface of the sensor body (12), and a window (14) is provided on the upper surface of the cap (13).

3. The connecting base for a split-type patch pyroelectric sensor according to claim 1, characterized in that, The fixed shell (3) is fixedly connected to the inside of a first support column (15), the inner wall of the first support column (15) is rotatably connected to a first connecting shaft (16), the outer wall of the first connecting shaft (16) is fixedly connected to a connecting plate (17), and the upper surface of the connecting plate (17) is fixedly connected to a pressure plate (18).

4. A connecting base for a split-type patch pyroelectric sensor according to claim 3, characterized in that, The inner wall of the first support column (15) is rotatably connected to the second connecting shaft (19), the outer wall of the second connecting shaft (19) is fixedly connected to the first sleeve (20), and the outer wall of the first sleeve (20) is fixedly connected to the lead screw (21).

5. A connecting base for a split-type patch pyroelectric sensor according to claim 4, characterized in that, The pressure plate (18) has a groove (22) inside, and the outer wall of the lead screw (21) is slidably connected to the inside of the groove (22).

6. A connecting base for a split-type patch pyroelectric sensor according to claim 4, characterized in that, The outer wall of the lead screw (21) is threaded with a second sleeve (23), and the lower surface of the second sleeve (23) is slidably connected to the upper surface of the pressure plate (18). The lower surface of the pressure plate (18) is set on the upper surface of the sensor body (12).

7. A connecting base for a detachable patch pyroelectric sensor according to claim 1, characterized in that, The base body (1) is fixedly connected to a support rod (24), the outer wall of the support rod (24) is slidably connected to a third sleeve (25), and the outer wall of the support rod (24) is slidably connected to a second spring (26).

8. A connecting base for a split-type patch pyroelectric sensor according to claim 7, characterized in that, The outer wall of the third sleeve (25) is rotatably connected to a connecting block (27), the inner wall of the connecting block (27) is rotatably connected to a third connecting shaft (28), and the outer wall of the third connecting shaft (28) is rotatably connected to a second support column (29).

9. A connecting base for a detachable patch pyroelectric sensor according to claim 8, characterized in that, A buffer plate (30) is fixedly connected to the upper surface of the second support (29), and a buffer shaft (31) is fixedly connected to the lower surface of the buffer plate (30).

10. A connecting base for a detachable patch pyroelectric sensor according to claim 9, characterized in that, A third spring (32) is fixedly connected to the outer wall of the buffer shaft (31), and the bottom end of the third spring (32) is fixedly connected to the outer wall of the support rod (24).

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