An adaptive control device for LED intelligent streetlights

Abstract

This utility model discloses an adaptive control device for LED intelligent streetlights, relating to the field of streetlight light control controller technology. It includes a base and a housing fixed to the top of the base. A circuit board is mounted on the top of the base, and four wiring pins are soldered onto the surface of the circuit board. One end of each wiring pin extends through to the outside of the housing and has an internal recessed slot. This utility model incorporates a pressure plate designed into the recess of the housing, with a pressure block installed at the bottom of the pressure plate. When a wire is inserted into the internal recessed slot of the wiring pin, pressing the pressure plate causes the pressure block to engage with the internal recessed slot, allowing the teeth to engage with the wiring pin and hold the wire in place. Combined with the limiting mechanism designed at the top of the sliding groove and the upper limit groove of the pressure plate, the pressure plate can be limited and fixed, preventing it from detaching from the recess of the housing, thus simultaneously pressing multiple wires to ensure stability.

Description

Technical Field

[0001] This utility model relates to the field of street light control controller technology, specifically an LED intelligent street light adaptive control device. Background Technology

[0002] LED smart streetlights require the use of streetlight light controllers, which are intelligent lighting control devices that automatically control the switching and brightness of streetlights by sensing the ambient light intensity, achieving the core function of "lights on when it gets dark and lights off when it gets light".

[0003] Currently, traditional street light controllers still have certain problems in use. For example, when connecting to external wiring, the external power supply and external light wires need to be connected to the wiring pins. This is usually done by tightening bolts, which press the wiring onto the pins when the bolts are pressed down. Although this achieves the purpose of fixing, there are still some problems in use. For example, each wiring point needs to be tightened with a bolt, and there are at least four external wiring points on a street light controller. This takes a lot of time, and it is impossible to tighten multiple wiring points at the same time, resulting in poor installation efficiency. Furthermore, in places with large vibration amplitudes, such as overpasses, the controller is prone to loosening due to the dynamic environment, leading to failure of the fixing. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive control device for LED intelligent streetlights to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a base and a housing fixed to the top of the base, wherein a circuit board is assembled on the top of the base;

[0006] The circuit board has four wiring pins soldered on its surface. One end of each wiring pin extends through to the outside of the housing and has a recessed groove. A pressure plate is provided in the groove of the housing. A pressure block is mounted on the bottom of the pressure plate. The bottom of the pressure block has a toothed groove. A sliding groove is provided on the top of the step of the housing. Limiting grooves are provided on both sides of the pressure plate. A limiting mechanism that works with the limiting groove is provided on the top of the sliding groove.

[0007] In a further embodiment, the limiting mechanism includes a sliding block slidably connected to the sliding groove, a fixing block fixedly connected to the top of the sliding block, and a limiting block slidably connected to the limiting groove fixedly connected to the top of the fixing block.

[0008] In a further embodiment, a guide rod is fixedly connected inside the sliding groove, and a support spring is sleeved on the surface of the guide rod. The two ends of the support spring are respectively engaged with the sliding block and the inner wall of the sliding groove.

[0009] In a further embodiment, guide blocks are fixedly connected to both ends of the pressure plate, and a guide groove is provided in the groove of the housing to slide and connect with the guide blocks.

[0010] In a further embodiment, an adjustable potentiometer is soldered to the top of the circuit board, and the adjustment knob of the adjustable potentiometer extends through to the outside of the housing.

[0011] In a further embodiment, a dual comparator is soldered to the top of the circuit board, and a sensor connector is soldered to the top of the circuit board, with the insertion end of the sensor connector extending through to the outside of the housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model features a pressure plate designed in the groove of the housing, with a pressure block installed at the bottom of the pressure plate. When the wire is inserted into the concave slot of the wire pin, pressing the pressure plate can cause the pressure block to be inserted into the concave slot, so that the toothed groove cooperates with the wire pin to hold the wire in place. With the use of the limiting mechanism designed at the top of the sliding groove and the upper limit groove of the pressure plate, the pressure plate can be limited and fixed to prevent it from coming out of the groove of the housing, thus achieving the stability of pressing multiple wires at the same time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a partial structural connection diagram of an embodiment of the present utility model;

[0016] Figure 3 This is an exploded view of the overall structure of an embodiment of the present utility model;

[0017] Figure 4 This is a circuit diagram of an embodiment of the present utility model.

[0018] In the diagram: 1. Base; 2. Housing; 3. Circuit board; 4. Wiring pin; 5. Recessed slot; 6. Pressure plate; 7. Pressure block; 8. Gear groove; 9. Sliding groove; 10. Limiting groove; 11. Limiting mechanism; 111. Sliding block; 112. Fixing block; 113. Limiting block; 12. Guide rod; 13. Support spring; 14. Guide block; 15. Guide groove; 16. Adjustable potentiometer; 17. Dual comparator; 18. Sensor connector. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This embodiment discloses an adaptive control device for LED intelligent streetlights, including a base 1 and a housing 2 fixed to the top of the base 1. A circuit board 3 is mounted on the top of the base 1. Figure 1 and Figure 2 In this application, the base 1 and the housing 2 serve as the outer shell of the controller and are used to install the control unit of the controller. The circuit board 3 is mounted on the base 1, preferably by bolts.

[0021] The circuit board 3 has four wiring pins 4 soldered to its surface. One end of each wiring pin 4 extends through to the outside of the housing 2 and has a recessed groove 5. A pressure plate 6 is provided in the recess of the housing 2. A pressure block 7 is fitted to the bottom of the pressure plate 6. A toothed groove 8 is provided at the bottom of the pressure block 7. A sliding groove 9 is provided at the top of the step of the housing 2. Limiting grooves 10 are provided on both sides of the pressure plate 6. A limiting mechanism 11 that cooperates with the limiting groove 10 is provided at the top of the sliding groove 9. Guide blocks 14 are fixed to both ends of the pressure plate 6. A guide groove 15 that slides with the guide block 14 is provided in the recess of the housing 2. Figure 1 , Figure 2 and Figure 3In this application, the wiring pin 4 is located on one side of the circuit board 3 and soldered to the circuit board 3. One end of the wiring pin 4 passes through the slot on the housing 2 and extends into the groove of the housing 2. The recessed slot 5 is designed at the end of the wiring pin 4 outside the housing 2 for placing external wiring. The pressure plate 6 is located inside the groove of the housing 2, and its pressure blocks 7 are installed at the bottom of the pressure plate 6. Their number and position correspond to the wiring pin 4. The pressure blocks 7 and the recessed slot 5 can be interlocked. When the wiring is placed into the recessed slot 5, it can be pressed between the pressure blocks 7 and the recessed slot 5. The toothed grooves 8 are designed at the bottom of the pressure blocks 7 and are evenly arranged. When the pressure blocks 7 contact the wiring, the teeth... When slot 8 is engaged with the wiring, the wiring can be stably engaged between pressure block 7 and concave slot 5. Two sliding slots 9 are designed on the top of housing 2 and located on both sides of the recess in housing 2. They are used to install the limiting mechanism 11. The limiting slots 10 are designed on both sides of pressure plate 6 and are used in conjunction with the limiting mechanism 11 to limit pressure plate 6 and prevent pressure plate 6 from failing to press the wiring. Two guide blocks 14 are installed on both sides of pressure plate 6 and are symmetrically positioned. The guide groove 15 is opened inside the recess in housing 2. The guide groove 15 and the guide block 14 are slidably connected. When pressure plate 6 is engaged inside the recess in housing 2, pressure plate 6 can be slidably limited.

[0022] The limiting mechanism 11 includes a sliding block 111 slidably connected to the sliding groove 9. A fixing block 112 is fixedly connected to the top of the sliding block 111. A limiting block 113 slidably connected to the limiting groove 10 is fixedly connected to the top of the fixing block 112. A guide rod 12 is fixedly connected inside the sliding groove 9. A support spring 13 is sleeved on the surface of the guide rod 12. The two ends of the support spring 13 are respectively engaged with the sliding block 111 and the inner wall of the sliding groove 9. Figure 1 , Figure 2 and Figure 3 In this application, the sliding block 111 is located inside the sliding groove 9 and is slidably engaged with the sliding groove 9. The fixed block 112 is located on top of the sliding block 111. The sliding block 111 slides and limits the fixed block 112, allowing the fixed block 112 to slide back and forth at the top of the sliding groove 9. The limiting block 113 is installed on the side of the fixed block 112 near the pressure plate 6 and is used to engage with the limiting groove 10. The bottom wall of the limiting groove 10 is a slope plus a flat surface. When the limiting block 113 moves from the slope... When the bottom moves towards the top of the slope, the pressure plate 6 can be forced to move into the groove of the housing 2 to further press the wiring. When it moves to the plane, the limiting block 113 is stuck inside the limiting groove 10, and the guide rod 12 is inside the sliding groove 9. It is used to fix the support spring 13. The support spring 13 is stuck between the sliding block 111 and the inner wall of the sliding groove 9 to provide a reverse elastic force to the sliding block 111, preventing the limiting block 113 from coming out of the limiting groove 10 and further improving the fixing stability.

[0023] An adjustable potentiometer 16 is soldered to the top of the circuit board 3, and the adjustment knob of the adjustable potentiometer 16 extends through to the outside of the housing 2. A dual comparator 17 is soldered to the top of the circuit board 3, and a sensor connector 18 is soldered to the top of the circuit board 3, with the insertion end of the sensor connector 18 extending through to the outside of the housing 2. Figure 1 and Figure 2 In this application, the adjustable potentiometer 16 is mounted on the circuit board 3 and soldered to the circuit board 3. In the street light control controller, the adjustable potentiometer 16 is the core analog adjustment element used for dynamic calibration of the light threshold. Its function and calibration logic are as follows: it adjusts the voltage division reference value of the photosensitive sensor to change the critical illuminance for the controller to determine "turn on / off". For example, rotating clockwise increases the voltage division ratio and decreases the light-on threshold, such as from 50 Lux to 30 Lux, turning on the light earlier at dusk. Rotating counterclockwise decreases the voltage division ratio and increases the light-on threshold, such as from 50 Lux to 70 Lux, delaying the light-on. The dual comparator 17 is soldered to the circuit board 3. The dual comparator 17 is a key component of the core control circuit. It mainly solves the anti-interference problem and delay triggering requirement of the light threshold judgment. Its function is essentially to replace the single comparator with dual threshold hysteresis control to eliminate the frequent switching of relays caused by ambient light fluctuations, such as lightning and vehicle light interference. The sensor connector 18 is used to connect an external photosensitive sensor. The plug of the external photosensitive sensor can be inserted into the circuit board 3 through the insertion end of the sensor connector 18 located outside the housing 2.

[0024] like Figure 4 This street light controller primarily utilizes photosensitive elements to sense changes in light intensity to control the switching on and off of streetlights. Its working principle is as follows: The resistance of the photoresistor changes with light intensity; the stronger the light, the lower the resistance, and the weaker the light, the higher the resistance. During the day, with ample sunlight, the photoresistor's resistance is low, resulting in a larger current flowing through the circuit. The comparator circuit in the controller compares this current signal with a preset threshold. Since the actual current exceeds the threshold, the comparator circuit outputs a low-level signal. This signal is amplified and drives the execution circuit, turning the streetlight off. At night, with reduced light, the photoresistor's resistance increases, and the current in the circuit decreases. When the current drops below the preset threshold, the comparator circuit outputs a high-level signal, which, after amplification, drives the execution circuit, turning the streetlight on. Some controllers also have a delay function, allowing a certain delay after the light conditions are met before executing the switching action, thus avoiding frequent switching of streetlights due to instantaneous changes in light and achieving self-adaptation.

[0025] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An LED intelligent street lamp adaptive control device, comprising a base (1) and a shell (2) fixed to the top of the base (1), characterized in that: The base (1) is fitted with a circuit board (3) on its top. The circuit board (3) has four wiring pins (4) soldered on its surface. One end of each wiring pin (4) extends through the outside of the housing (2) and has a recessed groove (5). A pressure plate (6) is provided in the groove of the housing (2). A pressure block (7) is assembled at the bottom of the pressure plate (6). A toothed groove (8) is provided at the bottom of the pressure block (7). A sliding groove (9) is provided at the top of the step of the housing (2). Limiting grooves (10) are provided on both sides of the pressure plate (6). A limiting mechanism (11) that works with the limiting groove (10) is provided at the top of the sliding groove (9). 2.The LED intelligent street lamp adaptive control device according to claim 1, characterized in that: The limiting mechanism (11) includes a sliding block (111) that is slidably connected to the sliding groove (9), a fixing block (112) that is fixedly connected to the top of the sliding block (111), and a limiting block (113) that is slidably connected to the limiting groove (10) that is fixedly connected to the top of the fixing block (112). 3.The LED intelligent street lamp adaptive control device according to claim 2, characterized in that: A guide rod (12) is fixed inside the sliding groove (9), and a support spring (13) is sleeved on the surface of the guide rod (12). The two ends of the support spring (13) are respectively engaged with the sliding block (111) and the inner wall of the sliding groove (9).

4. The LED intelligent street lamp adaptive control device according to claim 1, characterized in that: Both ends of the pressure plate (6) are fixedly connected to guide blocks (14), and the groove of the housing (2) is provided with a guide groove (15) that is slidably connected to the guide blocks (14).

5. The LED intelligent street lamp adaptive control device according to claim 1, characterized in that: An adjustable potentiometer (16) is soldered to the top of the circuit board (3), and the adjustment knob of the adjustable potentiometer (16) extends through to the outside of the housing (2). 6.The LED intelligent street lamp adaptive control device according to claim 1, characterized in that: A dual comparator (17) is soldered to the top of the circuit board (3), and a sensor connector (18) is soldered to the top of the circuit board (3). The insertion end of the sensor connector (18) extends through to the outside of the housing (2).

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