Digital infrared induction switch

Abstract

The utility model relates to the technical field of intelligent control, and discloses a digital infrared inductive switch, which comprises a mounting mechanism and a Fresnel lens, an electric control assembly is arranged at the upper part of the center in the mounting mechanism, and a lithium iron phosphate battery for providing power for the electric control assembly is arranged at the lower part of the center in the mounting mechanism. The clamping assembly is arranged at the upper end of the mounting mechanism, the protection assembly is arranged at the upper end of the clamping assembly, the electric control assembly serves as the core of the switch and is responsible for receiving, processing and sending infrared induction signals, accurate control over the switch state is achieved, and the lithium iron phosphate battery is arranged on the lower portion of the center in the mounting mechanism. The lithium iron phosphate battery not only provides stable and lasting electric power support for the electric control assembly, but also ensures long-term stable operation of the switch due to the characteristics of high energy density and long service life, and a clamping assembly arranged at the upper end of the mounting mechanism not only plays a role in fixing and protecting the electric control assembly, but also is convenient for a user to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field technology field of intelligent control, specifically, relate to a digital infrared induction switch. BACKGROUND

[0002] The digital infrared induction switch is an advanced electronic control device, which is based on infrared induction technology and can realize non-contact automatic control of the circuit. The switch works by sensing the infrared heat emitted by the outside world, especially the specific wavelength infrared emitted by the human body. When the human body or other heat sources enter its sensing range, the infrared sensor inside the switch will detect the change of the infrared spectrum, thereby triggering the opening and closing action of the circuit. The digital infrared induction switch has the characteristics of no contact, high reliability, low power consumption, etc. It is suitable for various automatic control systems, such as smart home, industrial automation, security monitoring, etc. The digital infrared induction switch can not only quickly respond and turn on or off lamps, automatic doors and other equipment, but also can transmit the temperature and position information of objects or people to external devices, realizing accurate monitoring and control of target objects.

[0003] The prior art has obvious deficiencies in MCU master control chip and zero-crossing detection. First, the MCU master control chip lacks efficient algorithms and fast response mechanisms when processing infrared induction and photosensitive detection data, resulting in signal processing delay, affecting the real-time and accuracy of the system. At the same time, the integration and intelligence level of MCU is not high, making it difficult to realize complex environmental adaptability and user-defined functions, limiting the flexibility and scalability of the system. In terms of zero-crossing detection, the existing technology often uses analog methods or simple digital circuits, resulting in low detection accuracy of the zero-crossing point and being easily disturbed by noise. In addition, the lack of advanced phase detection technology and counting pulse optimization algorithm limits the accuracy of the counting pulse, further affecting the accuracy and reliability of the zero-crossing detection. These problems not only reduce the performance of the product, but also may cause the circuit to be unstable, shorten the service life of the product, and limit the load capacity range of the product. Therefore, the technical personnel in the field provide a digital infrared induction switch to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a digital infrared induction switch to solve the problems in the prior art.

[0005] The utility model provides the following technical scheme: a digital infrared induction switch, including installation mechanism and fresnel lens, the installation mechanism inside center upper part is provided with electric control assembly, the installation mechanism inside center lower part is provided with the lithium iron phosphate battery for providing power to electric control assembly, the installation mechanism upper end is provided with the clamping assembly, the clamping assembly upper end is provided with the protection assembly.

[0006] As the preferred technical scheme of the above, the installation mechanism comprises an installation bottom cover, a placing groove is arranged at the inner center of the installation bottom cover, three clamping seats are fixedly connected to the inner wall of the installation bottom cover in a ring shape, four positioning columns are fixedly connected to the inner bottom wall of the installation bottom cover in a ring shape at the center, and a sealing groove is formed at the upper end of the installation bottom cover near the edge.

[0007] As the preferred technical scheme of the above, the electric control assembly comprises a circuit board, the circuit board is arranged at the upper end of the four positioning columns, a positioning bolt is rotatably sleeved to the inner four corners of the circuit board, the assembling end of the four positioning bolts is threadedly sleeved to the inner center of the four positioning columns near the upper end, a zero-crossing detection chip, a relay and an MCU main control chip are fixedly connected to one side of the upper end of the circuit board, and the relay, the zero-crossing detection chip and the MCU main control chip are electrically connected with the circuit board.

[0008] As the preferred technical scheme of the above, a heat release infrared sensor is arranged at the center of the upper end of the circuit board, the heat release infrared sensor is electrically connected with the circuit board, a wiring terminal is arranged on one side of the circuit board, the wiring terminal is fixedly sleeved in the placing groove, and the wiring terminal and the circuit board are electrically connected.

[0009] As the preferred technical scheme of the above, the lithium iron phosphate battery is fixedly connected to the inner bottom wall center of the installation bottom cover, and the output end of the lithium iron phosphate battery is electrically connected with the circuit board.

[0010] As the preferred technical scheme of the above, the clamping assembly comprises three buckles, the three buckles are clamped in the three clamping seats respectively, a middle cover is fixedly connected to the upper end of the three buckles, and a positioning ring is fixedly connected to the center of the upper end of the middle cover.

[0011] As the preferred technical scheme of the above, the Fresnel lens is fixedly sleeved in the positioning ring.

[0012] As the preferred technical scheme of the above, the protection assembly comprises a sealing ring, the sealing ring is fixedly sleeved in the sealing groove, and an upper cover is fixedly connected to the upper end of the sealing ring.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] When the digital infrared induction switch is used, the installation mechanism serves as the main support of the entire switch, an electric control assembly is arranged at the upper center of the inside of the installation mechanism, the electric control assembly serves as the core of the switch, is responsible for receiving, processing and sending infrared induction signals, and realizes accurate control of the state of the switch, a lithium iron phosphate battery is arranged at the lower center of the inside of the installation mechanism, the lithium iron phosphate battery not only provides stable and durable power support for the electric control assembly, but also ensures long-term stable operation of the switch due to the characteristics of high energy density and long service life of the lithium iron phosphate battery, the clamping assembly arranged at the upper end of the installation mechanism not only plays a role in fixing and protecting the electric control assembly, but also facilitates the user to install and disassemble, thereby improving the convenience of use, and the protection assembly arranged at the upper end of the clamping assembly further enhances the protection performance of the switch, the protection assembly can effectively prevent dust, moisture and other external factors from eroding the electric control assembly, thereby prolonging the service life of the switch. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a perspective view of a digital infrared induction switch;

[0016] Figure 2 FIG. 2 is a perspective view of a digital infrared induction switch in a split structure;

[0017] Figure 3 FIG. 3 is a perspective view of an installation mechanism of a digital infrared induction switch;

[0018] Figure 4 FIG. 4 is a perspective view of an electric control assembly of a digital infrared induction switch;

[0019] Figure 5 FIG. 5 is a perspective view of a positioning ring of a digital infrared induction switch;

[0020] Figure 6 FIG. 6 is a perspective view of a buckle of a digital infrared induction switch;

[0021] Figure 7 FIG. 7 is a perspective view of a protection assembly of a digital infrared induction switch.

[0022] FIG. 7 is a perspective view of a protection assembly of a digital infrared induction switch.

[0023] 1, installation mechanism; 101, installation bottom cover; 102, placement groove; 103, clamping seat; 104, positioning column; 105, sealing groove; 2, electric control assembly; 201, circuit board; 202, positioning bolt; 203, zero-crossing detection chip; 204, relay; 205, thermal release infrared sensor; 206, wiring terminal; 207, MCU main control chip; 3, clamping assembly; 301, buckle; 302, middle cover; 303, positioning ring; 4, protection assembly; 401, sealing ring; 402, upper cover; 5, lithium iron phosphate battery; 6, Fresnel lens. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0025] As shown in Figure 1 and Figure 2 The utility model provides a kind of technical scheme: a kind of digital infrared induction switch, including installation mechanism 1 and fresnel lens 6, installation mechanism 1 inside center upper place is provided with electric control assembly 2, installation mechanism 1 inside center lower place is provided with the lithium iron phosphate battery 5 for providing power to electric control assembly 2, installation mechanism 1 upper end is provided with clamping assembly 3, clamping assembly 3 upper end is provided with protection assembly 4, installation mechanism 1 is as the main support of entire switch, its inside center upper place is provided with electric control assembly 2, electric control assembly 2 is as the core of switch, responsible for receiving, processing and sending infrared induction signal, realizes the accurate control to switch state, in installation mechanism 1 inside center lower place, then equipped with lithium iron phosphate battery 5, this lithium iron phosphate battery 5 not only provides stable, durable power support for electric control assembly 2, also because of its high energy density and long life characteristics, ensure the long-term stable operation of switch, installation mechanism 1 upper end setting clamping assembly 3, not only play the role of fixed and protection electric control assembly 2, also facilitate user to install and disassemble, improve the convenience of use, located in the clamping assembly 3 upper end protection assembly 4, further enhance the protection performance of switch, protection assembly 4 can effectively prevent dust, moisture and other external factors from eroding electric control assembly 2, thereby prolong the service life of switch.

[0026] As one of the embodiments in the present embodiment, as shown in Figure 3 and Figure 4As shown, the mounting mechanism 1 includes a mounting bottom cover 101, which is provided with a placing groove 102 at the inner center near one side, and three clamping seats 103 are fixedly connected in annular arrangement on the inner wall of the mounting bottom cover 101, four positioning columns 104 are fixedly connected in annular arrangement at the center of the inner bottom wall of the mounting bottom cover 101, and a sealing groove 105 is formed at the upper end of the mounting bottom cover 101 near the edge. The electric control assembly 2 includes a circuit board 201, which is arranged on the upper end of the four positioning columns 104, and four positioning bolts 202 are rotatably sleeved at the inner center near the upper end of the four positioning columns 104. The electric control assembly 2 further includes a zero-crossing detection chip 203, a relay 204 and an MCU main control chip 207, which are fixedly connected in annular arrangement on the upper end of the circuit board 201 near one side. The relay 204, the zero-crossing detection chip 203 and the MCU main control chip 207 are electrically connected to the circuit board 201. A heat release infrared sensor 205 is arranged at the center of the upper end of the circuit board 201 and electrically connected to the circuit board 201. A wiring terminal 206 is arranged on one side of the circuit board 201 and fixedly sleeved in the placing groove 102. The wiring terminal 206 and the circuit board 201 are electrically connected. A lithium iron phosphate battery 5 is fixedly connected to the center of the inner bottom wall of the mounting bottom cover 101 and electrically connected to the circuit board 201. The mounting mechanism 1 includes the mounting bottom cover 101, which is provided with the placing groove 102, the clamping seat 103, the positioning column 104 and the sealing groove 105. The core of the electric control assembly 2 is the circuit board 201, which is stably connected to the positioning column 104 through the positioning bolt 202. The circuit board 201 integrates the zero-crossing detection chip 203, the relay 204, the MCU main control chip 207 and the heat release infrared sensor 205. The model of the zero-crossing detection chip 203 is UC3842 chip. The use of UC3842 as the zero-crossing detection chip 203 significantly improves the accuracy and reliability of zero-crossing detection, provides accurate phase information for the MCU main control chip 207, and ensures real-time processing of infrared signals and photosensitive data through the efficient algorithm and fast response mechanism of the MCU main control chip 207, thereby improving the real-time performance and accuracy of the system and realizing accurate control. When the heat release infrared sensor 205 detects an infrared signal, the signal is transmitted to the MCU main control chip 207 for processing through the circuit board 201. At the same time, the zero-crossing detection chip 203 accurately detects the zero point position of AC input power and provides accurate phase information for the MCU main control chip 207. The MCU main control chip 207 judges the ambient light intensity, infrared signal strength and phase information according to the preset algorithm, controls the relay 204 in time, realizes the on-off control of the circuit, and electrically connects the wiring terminal 206 and the circuit board 201, which is convenient for the access of external power supply and signals. The lithium iron phosphate battery 5 serves as a backup power supply to ensure that the device can still work normally for a period of time in the case of power failure.

[0027] As an embodiment in the present embodiment, as shown in Figures 5-7 The clamping assembly 3 includes three buckles 301, which are clamped in the three card seats 103 respectively. The upper end of the three buckles 301 is fixedly connected with the middle cover 302. The upper end of the middle cover 302 is fixedly connected with the positioning ring 303. The Fresnel lens 6 is fixedly sleeved in the positioning ring 303. The protection assembly 4 includes the sealing ring 401, which is fixedly sleeved in the sealing groove 105. The upper end of the sealing ring 401 is fixedly connected with the upper cover 402. The clamping assembly 3 includes three buckles 301, which are clamped in the three card seats 103 respectively. The middle cover 302 is stably connected with the installation bottom cover 101. The positioning ring 303 at the upper end of the middle cover 302 is used for fixing the Fresnel lens 6. The lens can enhance the receiving efficiency of the infrared signal and improve the detection sensitivity. The protection assembly 4 includes the sealing ring 401 and the upper cover 402. The sealing ring 401 is fixedly sleeved in the sealing groove 105, forming an effective waterproof and dustproof barrier. The upper cover 402 is tightly connected with the sealing ring 401, further enhancing the protection performance of the device, ensuring that the internal electronic elements are not affected by the external environment.

[0028] Working principle: the installation mechanism 1 includes the installation bottom cover 101, which is provided with the placing groove 102, the clamping seat 103, the positioning column 104 and the sealing groove 105, the core of the electric control assembly 2 is the circuit board 201, the circuit board 201 is stably connected with the positioning column 104 through the positioning bolt 202, the circuit board 201 is integrated with the zero-crossing detection chip 203, the relay 204, the MCU main control chip 207 and the heat release infrared sensor 205, the model of the zero-crossing detection chip 203 is UC3842 chip, by adopting UC3842 as the zero-crossing detection chip 203, the accuracy and reliability of zero-crossing detection are significantly improved, accurate phase information is provided for the MCU main control chip 207, the efficient algorithm and the fast response mechanism of the MCU main control chip 207 ensure the real-time processing of infrared signals and photosensitive data, improve the real-time performance and accuracy of the system, realize accurate control, when the heat release infrared sensor 205 detects infrared signals, the signals are transmitted to the MCU main control chip 207 for processing through the circuit board 201, at the same time, the zero-crossing detection chip 203 accurately detects the zero point position of the AC input power, provides accurate phase information for the MCU main control chip 207, the MCU main control chip 207 judges the ambient light intensity, the infrared signal strength and the phase information according to the preset algorithm, controls the relay 204 to act in time, realizes the on-off control of the circuit, the wiring terminal 206 is electrically connected with the interaction end of the circuit board 201, which is convenient for the access of external power supply and signals, the lithium iron phosphate battery 5 is used as a backup power supply, which ensures that the device can still work normally for a period of time in the case of power failure, the clamping assembly 3 includes three buckles 301, which are clamped in the three clamping seats 103 respectively, realizing the stable connection of the middle cover 302 and the installation bottom cover 101, the positioning ring 303 at the upper end of the middle cover 302 is used for fixing the Fresnel lens 6, the lens can enhance the receiving efficiency of infrared signals and improve the detection sensitivity, the protection assembly 4 includes the sealing ring 401 and the upper cover 402, the sealing ring 401 is fixedly sleeved in the sealing groove 105, forming an effective waterproof and dustproof barrier, the upper cover 402 is tightly connected with the sealing ring 401, further enhancing the protection performance of the device, ensuring that the internal electronic elements are not affected by the external environment.

[0029] The above examples are only used to illustrate the technical scheme of the utility model, not to limit it.

Claims

1. A digital infrared sensing switch comprising a mounting mechanism (1) and a Fresnel lens (6), characterized in that: The installation mechanism (1) is internally centrally disposed with an electric control assembly (2), and is internally centrally disposed with a lithium iron phosphate battery (5) for providing power to the electric control assembly (2); the installation mechanism (1) is provided with a clamping assembly (3) at the upper end, and the clamping assembly (3) is provided with a protection assembly (4) at the upper end.

2. The digital infrared sensing switch of claim 1, wherein: The installation mechanism (1) comprises an installation bottom cover (101), which is internally centrally disposed with a placing groove (102) on one side, and three clamping seats (103) are fixedly connected in annular arrangement on the inner wall of the installation bottom cover (101); four positioning columns (104) are fixedly connected in annular arrangement at the center of the inner bottom wall of the installation bottom cover (101), and a sealing groove (105) is formed at the center of the upper end of the installation bottom cover (101).

3. A digital infrared sensing switch according to claim 2, wherein: The electric control assembly (2) comprises a circuit board (201), which is disposed on the upper end of the four positioning columns (104); four positioning bolts (202) are rotatably sleeved at four diagonal positions of the circuit board (201), and the assembly ends of the four positioning bolts (202) are threadedly sleeved at the inner central upper end of the four positioning columns (104); a zero-crossing detection chip (203), a relay (204) and an MCU main control chip (207) are fixedly connected in annular arrangement on one side of the upper end of the circuit board (201), and the relay (204), the zero-crossing detection chip (203) and the MCU main control chip (207) are electrically connected with the circuit board (201).

4. The digital infrared sensing switch of claim 3, wherein: A heat release infrared sensor (205) is disposed at the center of the upper end of the circuit board (201), and the heat release infrared sensor (205) is electrically connected with the circuit board (201); a wiring terminal (206) is disposed on one side of the circuit board (201), and the wiring terminal (206) is fixedly sleeved in the placing groove (102); and the wiring terminal (206) and the circuit board (201) are electrically connected between the interactive ends.

5. The digital infrared sensing switch of claim 4, wherein: The lithium iron phosphate battery (5) is fixedly connected at the center of the inner bottom wall of the installation bottom cover (101), and the output end of the lithium iron phosphate battery (5) is electrically connected with the circuit board (201).

6. The digital infrared sensing switch of claim 4, wherein: The clamping assembly (3) comprises three buckles (301), which are clamped in the three clamping seats (103) respectively; a middle cover (302) is fixedly connected to the upper end of the three buckles (301); and a positioning ring (303) is fixedly connected to the center of the upper end of the middle cover (302).

7. The digital infrared sensing switch of claim 1, wherein: The Fresnel lens (6) is fixedly sleeved in the positioning ring (303).

8. The digital infrared sensing switch of claim 3, wherein: The protection assembly (4) comprises a sealing ring (401), which is fixedly sleeved in the sealing groove (105); and an upper cover (402) is fixedly connected to the upper end of the sealing ring (401).

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