Digital infrared induction switch

Abstract

The utility model relates to the technical field of inductive switches, and discloses a digital infrared inductive switch which comprises an installation bottom cover, a PCB substrate fixedly installed on the upper end face of the installation bottom cover, a pyroelectric infrared sensor, a relay and a wiring terminal fixedly installed on the upper end face of the PCB substrate, and a middle cover detachably arranged on the upper end face of the installation bottom cover. A Fresnel lens is fixed to the center of the middle cover, an upper cover is arranged on the upper end face of the middle cover, a fixing assembly is arranged between the middle cover and the upper cover, the Fresnel lens penetrates through the center of the upper cover, an anti-dragging assembly used for fixing an electric wire is arranged between the installation bottom cover and the middle cover, and the anti-dragging assembly arranged between the installation bottom cover and the middle cover is mainly used for fixing the electric wire. Firstly, the middle cover is placed on the mounting bottom cover, the upper wire pressing plate is opposite to the lower wire pressing plate, the electric wire is clamped between the upper wire pressing plate and the lower wire pressing plate at the moment, and the electric wire is prevented from loosening due to dragging or vibration through cooperation of the upper wire pressing plate and the lower wire pressing plate, so that stable power supply is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of induction switches, and in particular to a digital infrared induction switch. Background Art

[0002] A digital infrared sensor switch is an automatic control switch based on infrared sensing technology. It achieves automatic control by sensing infrared heat emitted from the outside world. When a person or other object with a temperature above absolute zero enters the sensing range, it emits infrared radiation. The pyroelectric infrared sensor detects this change in infrared radiation and automatically switches the load on. As long as the person remains within the sensing range, the load remains on. After the person leaves, the switch automatically switches off the load after a delay.

[0003] Existing devices have some disadvantages during use. For example, digital infrared sensor switches are generally connected to wires for power supply operation, but the fixation and protection of the wires are often neglected. Traditional fixing methods cannot effectively prevent the wires from loosening or being damaged by external forces. This may not only lead to unstable power supply, but also shorten the service life of the switch. Especially in some environments that require frequent movement or vibration, the fixation and protection of the wires are more prominent. Utility Model Content

[0004] The purpose of the utility model is to provide a digital infrared sensor switch to solve the problem that the traditional fixing method may not be able to effectively prevent the wire from loosening or being damaged due to external force.

[0005] The utility model provides the following technical solution: a digital infrared sensor switch, comprising a mounting bottom cover, a PCB substrate fixedly mounted on the upper end surface of the mounting bottom cover, a pyroelectric infrared sensor, a relay and a wiring terminal fixedly mounted on the upper end surface of the PCB substrate, a middle cover detachably provided on the upper end surface of the mounting bottom cover, a Fresnel lens fixed at the center of the middle cover, an upper cover provided on the upper end surface of the middle cover, a fixing assembly provided between the middle cover and the upper cover, the Fresnel lens passing through the center of the upper cover, and an anti-drag assembly for fixing electric wires provided between the mounting bottom cover and the middle cover.

[0006] As a preferred embodiment of the above technical solution, the fixing assembly includes mounting slots provided on two opposite side walls of the middle cover, and mounting plugs are fixedly connected to two opposite inner walls of the upper cover.

[0007] As a preferred embodiment of the above technical solution, the anti-drag component includes an upper wire pressing plate fixedly connected to one side of the lower end surface of the middle cover, a lower wire pressing plate fixedly connected to one side of the upper end surface of the installation bottom cover, and a wire hole for passing the wires is opened on one side of the inner bottom wall of the installation bottom cover.

[0008] As a preferred embodiment of the above technical solution, a plurality of potentiometers are fixedly mounted on the upper end surface of the PCB substrate, a plurality of mounting holes are arranged in an array on the middle cover, a knob is vertically inserted into the inner side of the mounting hole, and the bottom end of the knob is screwed tightly to the potentiometer.

[0009] As a preferred embodiment of the above technical solution, a circular array of screw holes for fixing the bottom cover and the middle cover is provided on the bottom cover.

[0010] As a preferred embodiment of the above technical solution, the mounting bottom cover is symmetrically provided with first preset holes on both sides, and the middle cover is symmetrically provided with second preset holes on both sides, and the first preset holes and the second preset holes overlap in the vertical direction.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, the anti-drag component provided between the mounting bottom cover and the middle cover is mainly used to fix the wires. First, the middle cover is placed on the mounting bottom cover so that the upper wire pressing plate is opposite to the lower wire pressing plate. At this time, the wires are clamped between the upper wire pressing plate and the lower wire pressing plate. The cooperation of the upper wire pressing plate and the lower wire pressing plate prevents the wires from loosening due to dragging or vibration, thereby ensuring stable power supply and extending its service life. The upper cover and the middle cover are tightly connected by the fixing component to facilitate quick disassembly of the device, which is convenient for sorting and repairing the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a digital infrared sensor switch;

[0014] Figure 2 This is a schematic diagram of a partially exploded structure from a first-person perspective of a digital infrared sensor switch;

[0015] Figure 3 A schematic diagram of a partial explosion structure from a second perspective of a digital infrared sensor switch;

[0016] Figure 4 This is a schematic diagram of the overall explosion structure of a digital infrared sensor switch.

[0017] In the figure: 1. Install the bottom cover; 101. Screw hole; 102. First preset hole; 11. PCB substrate; 12. Pyroelectric infrared sensor; 13. Relay; 14. Terminal block; 15. Middle cover; 151. Mounting hole; 152. Second preset hole; 16. Fresnel lens; 17. Upper cover; 18. Potentiometer; 19. Knob; 2. Fixing assembly; 21. Mounting slot; 22. Mounting plug; 3. Anti-drag assembly; 31. Upper wire pressing plate; 32. Lower wire pressing plate; 33. Wire hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] Example

[0020] like Figures 1-4 As shown, the utility model provides a technical solution: a digital infrared sensor switch, comprising a mounting base 1, a PCB substrate 11 fixedly mounted on the upper end surface of the mounting base 1, a pyroelectric infrared sensor 12, a relay 13 and a terminal 14 fixedly mounted on the upper end surface of the PCB substrate 11, a middle cover 15 detachably provided on the upper end surface of the mounting base 1, a circular array of screw holes 101 for fixing the mounting base 1 and the middle cover 15 are opened on the mounting base 1, after the middle cover 15 is placed on the mounting base 1, the mounting base 1 and the middle cover 1 are fixed by tightening the screws. 5 is fixed, a Fresnel lens 16 is fixed at the center of the middle cover 15, an upper cover 17 is provided on the upper end surface of the middle cover 15, a fixing component 2 is provided between the middle cover 15 and the upper cover 17, the Fresnel lens 16 passes through the center of the upper cover 17, and an anti-drag component 3 for fixing the wires is provided between the bottom cover 1 and the middle cover 15. During specific use, the middle cover 15 not only protects the sensor, but also enhances the detection ability of the sensor through the Fresnel lens 16 at its center. The Fresnel lens 16 can focus and enhance infrared radiation, thereby improving the sensitivity and detection of the sensor. The upper cover 17 and the middle cover 15 are tightly connected by the fixing component 2 to ensure the stability and durability of the entire switch structure. The anti-drag component 3 set between the bottom cover 1 and the middle cover 15 is mainly used to fix the wires to prevent them from loosening or being damaged by external drag. This not only improves the reliability of the switch, but also extends its service life. Among them, the pyroelectric infrared sensor 12 is the core component of the switch and can detect infrared radiation emitted by the human body or other heat sources. When a person or object moves within the detection range of the sensor, the sensor will receive the changing infrared signal and convert it into an electrical signal. As the carrier of the entire circuit, the PCB substrate 11 integrates the sensor, relay 13 and other necessary electronic components. It is responsible for processing the signal output by the sensor and controlling the switching state of the relay 13 according to the preset logic. According to the instructions of the PCB substrate 11, the relay 13 will close or open the circuit, thereby controlling the on and off of the external load connected to the terminal 14. The terminal 14 is used to connect to the external power supply and load and is the interface between the switch and the external circuit.

[0021] As an implementation method in this embodiment, Figure 2 and Figure 3As shown, the fixing assembly 2 includes mounting slots 21 provided on opposite side walls of the middle cover 15, and mounting plugs 22 are fixedly connected to opposite inner walls of the upper cover 17. During use, after the middle cover 15 is fixed to the mounting bottom cover 1, the mounting plugs 22 fixed on the upper cover 17 are inserted into the mounting slots 21, and then the upper cover 17 is manually rotated to move the mounting plugs 22 along the track of the slots until it reaches the locked position, thereby fixing the upper cover 17 and the middle cover 15. The arrangement of this structure can facilitate the disassembly of the upper cover without the need for special equipment, thereby making it easier for users to check whether the connection of the internal circuits is stable.

[0022] As an implementation method in this embodiment, Figure 1 As shown, the anti-drag component 3 includes an upper wire pressing plate 31 fixedly installed on one side of the lower end surface of the middle cover 15, a lower wire pressing plate 32 fixedly connected to one side of the upper end surface of the installation bottom cover 1, and a wire passing hole 33 for passing the wires is opened on one side of the inner bottom wall of the installation bottom cover 1. During the installation process, the wires are first passed through the wire passing hole 33 of the installation bottom cover 1, and then the middle cover 15 is placed on the installation bottom cover 1 so that the upper wire pressing plate 31 is opposite to the lower wire pressing plate 32. At this time, the wires are clamped between the upper wire pressing plate 31 and the lower wire pressing plate 32. Through the cooperation of the upper wire pressing plate 31 and the lower wire pressing plate 32, the wires are prevented from loosening due to dragging or vibration, thereby ensuring stable power supply.

[0023] As an implementation method in this embodiment, Figure 2 and Figure 4 As shown, a plurality of potentiometers 18 are fixedly mounted on the upper end surface of the PCB substrate 11, and a plurality of mounting holes 151 are arranged in an array on the middle cover 15. A knob 19 is vertically inserted into the inner side of the mounting hole 151, and the bottom end of the knob 19 is screwed tightly to the potentiometer 18. During specific use, the potentiometer 18 is an adjustable resistor. By rotating its knob 19, the resistance value can be changed, thereby adjusting the current or voltage in the circuit. The knob 19 is vertically inserted from above the mounting hole 151 and rotated to tighten the knob 19 to the adjustment part of the potentiometer 18.

[0024] As an implementation method in this embodiment, Figure 2 、 Figure 3 and Figure 4 As shown, the first preset holes 102 are symmetrically opened on both sides of the installation bottom cover 1, and the second preset holes 152 are symmetrically opened on both sides of the middle cover 15. The first preset holes 102 and the second preset holes 152 overlap in the vertical direction. During specific use, the first preset holes 102 and the second preset holes 152 overlap in the vertical direction to form an installation channel, which can be used to insert expansion screws to ensure a stable connection of the device.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A digital infrared sensor switch, comprising a mounting base (1), characterized in that: A PCB substrate (11) is fixedly mounted on the upper end surface of the mounting bottom cover (1), a pyroelectric infrared sensor (12), a relay (13) and a terminal block (14) are fixedly mounted on the upper end surface of the PCB substrate (11), a middle cover (15) is detachably provided on the upper end surface of the mounting bottom cover (1), a Fresnel lens (16) is fixed at the center of the middle cover (15), an upper cover (17) is provided on the upper end surface of the middle cover (15), a fixing component (2) is provided between the middle cover (15) and the upper cover (17), the Fresnel lens (16) passes through the center of the upper cover (17), and an anti-drag component (3) for fixing electric wires is provided between the mounting bottom cover (1) and the middle cover (15).

2. The digital infrared sensor switch according to claim 1, characterized in that: The fixing assembly (2) comprises mounting slots (21) provided on opposite side walls of the middle cover (15), and mounting plugs (22) are fixedly connected to opposite side inner walls of the upper cover (17).

3. The digital infrared sensor switch according to claim 1, characterized in that: The anti-drag assembly (3) comprises an upper wire pressing plate (31) fixedly mounted on one side of the lower end face of the middle cover (15), a lower wire pressing plate (32) fixedly mounted on one side of the upper end face of the mounting bottom cover (1), and a wire hole (33) for passing wires is provided on one side of the inner bottom wall of the mounting bottom cover (1).

4. The digital infrared sensor switch according to claim 1, characterized in that: A plurality of potentiometers (18) are fixedly mounted on the upper end surface of the PCB substrate (11), a plurality of mounting holes (151) are arranged in an array on the middle cover (15), a knob (19) is vertically inserted into the inner side of the mounting hole (151), and the bottom end of the knob (19) is screwed tightly to the potentiometer (18).

5. The digital infrared sensor switch according to claim 1, characterized in that: The mounting bottom cover (1) is provided with a circular array of screw holes (101) for fixing the mounting bottom cover (1) and the middle cover (15).

6. The digital infrared sensor switch according to claim 1, characterized in that: The mounting bottom cover (1) is symmetrically provided with first preset holes (102) on both sides, and the middle cover (15) is symmetrically provided with second preset holes (152) on both sides, wherein the first preset hole (102) and the second preset hole (152) overlap in the vertical direction.

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