Sensing structure
By designing a light-concentrating component in an infrared detector, the external infrared light is centralized to process, which solves the problem of poor reception effect caused by light dispersion in the prior art, and significantly improves the imaging quality.
Patent Information
- Application Number
- CN202421820683.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-07-30
AI Technical Summary
When existing infrared detectors receive infrared light, the reception effect is poor due to light dispersion, which affects the imaging effect.
A sensing structure is designed, including a tube seat, a tube cap, a light-concentrating assembly and a engaging assembly. The infrared light from the outside is concentrated through the light-concentrating assembly, and the light-concentrating is used to reduce the divergence of light, so that the light passes through the light-transmitting hole and increases the sensing and reception effect at the filter position.
Through the design of the light-concentrating component, the light-concentration effect of infrared light is significantly improved, the sensing and reception effect is enhanced, thereby improving the imaging quality of the infrared detector.
Smart Images
Figure CN222599857U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sensing structure, belonging to the field of infrared detectors. Background Art
[0002] An infrared detector is a detector that works by detecting infrared rays emitted by the human body. In an infrared detector, a pyroelectric element detects the presence or movement of a human body and converts the output signal of the pyroelectric element into a voltage signal. Then, the voltage signal is subjected to waveform analysis. The detector is simply an infrared photodiode that is sensitive to infrared light of the same wavelength as an infrared light emitting diode. The light needs to be received, and when infrared light shines on the photodiode, the resistance and output voltage will change in proportion to the amount of infrared light received.
[0003] In the prior art, when receiving light, because the detector is in a state of being, the light from the outside that enters it is relatively scattered, making the detector's reception effect of infrared light poor. The dispersion of light affects the subsequent imaging effect, so it is necessary to design an infrared detector sensing structure that can concentrate infrared light. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a sensing structure to solve the problems raised in the above-mentioned background technology. The present invention facilitates concentrating the received light, thereby increasing the receiving effect.
[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a sensing structure, including a tube seat, a tube cap is snap-connected on the top of the tube seat, a focusing component is snap-connected on the top of the tube cap, a snap-connected component is fixedly connected to the inner wall of the tube cap, a shell is installed on the top of the tube seat, a circuit element is arranged on the inner wall of the shell, a FET tube is installed on the top of the circuit element, a supporting ring is arranged inside the shell, a PZT thermoelectric element is arranged on the top of the supporting ring, a filter is installed on the top of the PZT thermoelectric element, a pin is installed on the bottom of the shell, and a light-transmitting hole is opened on the top of the shell.
[0006] Furthermore, the interior of the focusing assembly includes an outer ring, a focusing lens and a block, the top of the tube cap is snap-connected with the outer ring, the interior of the outer ring is fixedly connected with the focusing lens, and the bottom of the outer ring is fixedly connected with the block.
[0007] Furthermore, a groove is provided on the top of the tube cap, and the block and the groove are fitted into each other.
[0008] Furthermore, the interior of the locking assembly includes a sleeve, a spring, a fitting block and a push rod, the inner wall of the tube cap is fixedly connected to the sleeve, the inner wall of the sleeve is fixedly connected to the spring, the other end of the spring is fixedly connected to the fitting block, and the outer wall of the fitting block is fixedly connected to the push rod.
[0009] Furthermore, a mounting groove is provided on the top of the pipe seat, and the engaging block and the mounting groove are engaged with each other, and the ejector rod passes through the pipe cap.
[0010] Furthermore, the optical filter, the light-transmitting hole and the light-focusing component are located on the same longitudinal horizontal line, and the light-transmitting hole is located between the light-focusing component and the optical filter.
[0011] Furthermore, the pins pass through the shell and the tube holder, the pins are provided in two groups, and the pins are divided into positive and negative levels.
[0012] The beneficial effects of the utility model are as follows: the utility model installs the tube cap at the tube seat position through the snap-fit assembly, utilizes the focusing assembly installed on the top to concentrate the external incident light, utilizes the condenser to reduce the divergence of the light, and makes the focusing effect more significant, so that the incident light is concentrated through the light-transmitting hole, and thus concentrated at the filter position, thereby increasing the sensing reception effect, thereby increasing the imaging effect of the infrared detector.
[0013] Through the movable push rod, the spring inside the sleeve is compressed, thereby driving the engaging block to move, so that the tube seat and the engaging block are separated from each other, thereby removing the tube cap, so that the tube cap and the tube seat can cooperate to protect the internal structure and reduce environmental damage to internal components. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0015] Figure 1 This is a schematic diagram of the structure of a sensor structure of the utility model;
[0016] Figure 2 This is a cross-sectional view of the utility model;
[0017] Figure 3 Practical Figure 1 Enlarged view of point A in the middle;
[0018] Figure 4 This is a schematic diagram of the structure of the light focusing component of the utility model.
[0019] In the figure: 1. tube base; 2. tube cap; 3. focusing assembly; 301. outer ring; 302. focusing lens; 303. clamping block; 4. clamping assembly; 401. sleeve; 402. spring; 403. fitting block; 404. push rod; 5. housing; 6. circuit element; 7. FET tube; 8. supporting ring; 9. PZT thermoelectric element; 10. filter; 11. pin; 12. light-transmitting hole. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] See also Figure 1 and Figure 2 The utility model provides a technical solution: a sensing structure, including a tube seat 1, a tube cap 2 is snap-connected to the top of the tube seat 1, a focusing component 3 is snap-connected to the top of the tube cap 2, a snap-connected component 4 is fixedly connected to the inner wall of the tube cap 2, a shell 5 is installed on the top of the tube seat 1, a circuit element 6 is arranged on the inner wall of the shell 5, a FET tube 7 is installed on the top of the circuit element 6, a supporting ring 8 is arranged inside the shell 5, a PZT thermoelectric element 9 is arranged on the top of the supporting ring 8, a filter 10 is installed on the top of the PZT thermoelectric element 9, a pin 11 is installed on the bottom of the shell 5, and a light-transmitting hole 12 is opened on the top of the shell 5.
[0022] The tube cap 2 is installed at the position of the tube base 1 through the snap-fit assembly 4, and the focusing assembly 3 installed on the top is used to concentrate the external incident light, and the condenser 302 is used to reduce the divergence of the light, so that the focusing effect is more significant, so that the incident light is concentrated through the light-transmitting hole 12, and then concentrated at the position of the filter 10, thereby increasing the sensing reception effect, thereby increasing the imaging effect of the infrared detector.
[0023] See also Figures 1 to 4 The utility model provides a technical solution: the interior of the focusing component 3 includes an outer ring 301, a focusing lens 302 and a clamping block 303, the top of the tube cap 2 is clamped and connected with the outer ring 301, the inside of the outer ring 301 is fixedly connected with the focusing lens 302, and the bottom of the outer ring 301 is fixedly connected with the clamping block 303.
[0024] The above structure facilitates the concentration of light through the focusing assembly 3, thereby achieving a sensor receiving effect, and utilizes the position of the clamping block 303 to disassemble and install the focusing lens 302, so that the focusing assembly 3 can be disassembled in the event of damage.
[0025] Preferably, a groove is provided on the top of the tube cap 2, and the block 303 is engaged with the groove.
[0026] The above structure is engaged with the groove position through the clamping block 303, so that the outer ring 301 and the focusing lens 302 at the top can be disassembled and installed.
[0027] Preferably, the interior of the locking assembly 4 includes a sleeve 401, a spring 402, a locking block 403 and a push rod 404, the inner wall of the pipe cap 2 is fixedly connected to the sleeve 401, the inner wall of the sleeve 401 is fixedly connected to the spring 402, the other end of the spring 402 is fixedly connected to the locking block 403, and the outer wall of the locking block 403 is fixedly connected to the push rod 404.
[0028] The above structure compresses the spring 402 through the movable push rod 404, so that the engaging block 403 can move, and at the same time, the elastic force of the spring 402 is used to press the engaging block 403 into the engaging groove.
[0029] Furthermore, a mounting groove is provided on the top of the pipe seat 1 , and the engaging block 403 is engaged with the mounting groove, and the ejector rod 404 passes through the pipe cap 2 .
[0030] The above structure enables the pipe cap 2 to be installed and removed by the mutual engagement of the engagement block 403 and the installation groove.
[0031] Furthermore, the optical filter 10 , the light-transmitting hole 12 and the light-focusing component 3 are located on the same longitudinal horizontal line, and the light-transmitting hole 12 is located between the light-focusing component 3 and the optical filter 10 .
[0032] The above structure can allow light to penetrate through the light-transmitting hole 12 .
[0033] Furthermore, the pins 11 penetrate the housing 5 and the tube base 1 , and two groups of pins 11 are provided, and the pins 11 are divided into positive and negative levels.
[0034] The above structure can be conveniently electrically connected to other electrical equipment via the pins 11 .
[0035] Specific implementation method: The detector is an infrared photodiode, which is sensitive to infrared light of the same wavelength as the infrared light emitting diode. It needs to receive the light. When the infrared light is irradiated on the photodiode, the resistance and the output voltage will change proportionally with the size of the received infrared light. First, various electronic components are installed inside the housing 5. The pipe cap 2 is installed at the position of the pipe seat 1 through the clamping assembly 4. The spring 402 inside the sleeve 401 is compressed through the movable top rod 404, thereby driving the engaging block 403 to move, so that the pipe seat 1 and the engaging block 403 are separated from each other, so that the pipe cap 2 is disassembled, and the elastic force of the spring 402 is used to press the engaging block 403 against the inside of the engaging groove, so that the pipe cap 2 can be installed on the pipe seat 1. The tube cap 2 and the tube seat 1 are positioned so as to cooperate with each other to protect the internal structure and reduce the damage to the internal components caused by the environment. Secondly, the focusing component 3 installed on the top is used to concentrate the external incident light, and the focusing mirror 302 is used to reduce the divergence of the light, so that the focusing effect is more significant, so that the incident light is concentrated through the light-transmitting hole 12, and the filter 10, the light-transmitting hole 12 and the focusing component 3 are located on the same longitudinal horizontal line, so as to be concentrated at the position of the filter 10, thereby increasing the sensing receiving effect, thereby increasing the imaging effect of the infrared detector; finally, the focusing component 3 on the top can be disassembled, and the upper focusing mirror 302 can be disassembled when not needed, and the pin 11 is convenient for electrical connection with other electrical equipment.
[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A sensor structure, comprising a tube holder (1), characterized in that: The top of the tube seat (1) is snap-connected with a tube cap (2), the top of the tube cap (2) is snap-connected with a focusing assembly (3), the inner wall of the tube cap (2) is fixedly connected with a snap-connecting assembly (4), the top of the tube seat (1) is mounted with a shell (5), the inner wall of the shell (5) is provided with a circuit element (6), the top of the circuit element (6) is mounted with a FET tube (7), the inside of the shell (5) is provided with a support ring (8), the top of the support ring (8) is provided with a PZT thermoelectric element (9), the top of the PZT thermoelectric element (9) is mounted with a filter (10), the bottom of the shell (5) is mounted with a pin (11), and the top of the shell (5) is provided with a light-transmitting hole (12).
2. A sensing structure according to claim 1, characterized in that: The interior of the focusing assembly (3) comprises an outer ring (301), a focusing lens (302) and a clamping block (303); the top of the tube cap (2) is clamped and connected to the outer ring (301); the interior of the outer ring (301) is fixedly connected to the focusing lens (302); and the bottom of the outer ring (301) is fixedly connected to the clamping block (303).
3. A sensing structure according to claim 2, characterized in that: A groove is provided on the top of the tube cap (2), and the clamping block (303) is engaged with the groove.
4. A sensing structure according to claim 1, characterized in that: The interior of the clamping assembly (4) comprises a sleeve (401), a spring (402), a fitting block (403) and a push rod (404); the inner wall of the pipe cap (2) is fixedly connected to the sleeve (401); the inner wall of the sleeve (401) is fixedly connected to the spring (402); the other end of the spring (402) is fixedly connected to the fitting block (403); and the outer wall of the fitting block (403) is fixedly connected to the push rod (404).
5. A sensing structure according to claim 4, characterized in that: The top of the pipe seat (1) is provided with a mounting groove, the engaging block (403) is engaged with the mounting groove, and the top rod (404) passes through the pipe cap (2).
6. A sensing structure according to claim 1, characterized in that: The optical filter (10), the light transmission hole (12) and the light focusing assembly (3) are located on the same longitudinal horizontal line, and the light transmission hole (12) is located between the light focusing assembly (3) and the optical filter (10).
7. A sensing structure according to claim 1, characterized in that: The pins (11) penetrate the housing (5) and the tube base (1), and two groups of the pins (11) are provided, and the pins (11) are divided into positive and negative levels.