LED detection device with overvoltage protection device

Abstract

The utility model discloses an LED detection device with an overvoltage protection device, and the device is characterized in that the device comprises a supporting bottom plate, the two sides of the surface of the supporting bottom plate are fixedly provided with limiting frames, one end of an extrusion threaded rod is rotatably provided with an extrusion plate, the surface of one side of the supporting bottom plate is provided with an input interface, and one side of the input interface is fixedly provided with a digital voltmeter; an output interface is formed in one side of the overvoltage protection groove, a protection plug is installed on one side of the inner wall of the overvoltage protection groove, a protection jack is formed in the other side of the inner wall of the overvoltage protection groove, electric telescopic rods are fixedly installed on the two sides of the protection jack, and a plc is fixedly installed on the surface of the supporting bottom plate. The LED display screen overvoltage protection device has the advantages that power supply voltage input by the input interface is detected through the digital voltmeter, when the input voltage value is too large, the plc controls the electric telescopic rod to extend, the protection plug and the protection jack in the overvoltage protection groove are separated, the LED display screen module is powered off, and overvoltage protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED detection, in particular to an LED detection device with an overvoltage protection device. Background Art

[0002] As an integral part of modern lighting and display systems, LED (Light Emitting Diode) display modules are widely used in urban landscape lighting, advertising screens, interior decoration and other fields. However, during long-term use, LED display modules may sometimes experience brightness attenuation, partial dimming or complete failure, which seriously affects their use effect and expected life. In order to detect and deal with these problems in a timely manner, it is essential to perform regular or fault-triggered light intensity testing on LED display modules. This type of testing is designed to accurately evaluate the working status of each LED light source on the unit board in order to accurately locate the faulty part and implement repair or replacement.

[0003] Existing LED detection devices mainly focus on light intensity measurement and color consistency inspection and monitoring, but often ignore the response to voltage fluctuations that LED display modules may encounter in the actual operating environment. Voltage fluctuations, especially overvoltage conditions, are one of the common causes of damage and failure of LED display modules. Factors such as power grid fluctuations, power quality problems, and transient interference may cause the supply voltage to exceed the design tolerance range of the LED display module, causing LED chips to overheat, drive circuit damage, and even permanent damage to the entire unit board. Such faults not only affect the lighting or display effects, but also increase maintenance costs and waste of resources. No effective solution has yet been proposed for the problems in the relevant technology. Therefore, it is necessary to propose an LED detection device with an overvoltage protection device to solve the above-mentioned problems. Utility Model Content

[0004] In view of the problems in the related art, the utility model proposes an LED detection device with an overvoltage protection device to overcome the above technical problems existing in the existing related art.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] An LED detection device with an overvoltage protection device comprises a supporting base plate, limit frames are fixedly installed on both sides of the surface of the supporting base plate, a sliding groove is opened inside the limit frame, an extrusion threaded rod is threadedly connected to the surface of the limit frame, an extrusion plate is rotatably installed on one end of the extrusion threaded rod, an input interface is opened on one side of the surface of the supporting base plate, a digital voltmeter is fixedly installed on one side of the input interface, an overvoltage protection groove is opened on one side of the surface of the supporting base plate, an output interface is opened on one side of the overvoltage protection groove, a protection plug is installed on one side of the inner wall of the overvoltage protection groove, and a protection socket is opened on the other side, the protection socket cooperates with the protection plug, pushing plates are fixedly connected to the surfaces of both sides of the protection plug, electric telescopic rods are fixedly installed on both sides of the protection socket, the end of the electric telescopic rod is connected to the pushing plate, a PLC controller is fixedly installed on the surface of the supporting base plate, a backup battery is fixedly installed on one side of the overvoltage protection groove, and a detection mechanism is provided on one side of the surface of the supporting base plate.

[0007] Furthermore, in order to realize the light intensity detection of the LED display screen module, the detection mechanism includes an illuminance meter on the surface of the supporting base plate, a support frame is fixedly installed on one side of the surface of the supporting base plate, a transmission motor is fixedly installed on the top of the support frame, a threaded transmission rod is fixedly connected to the transmission shaft of the transmission motor, the surface of the threaded transmission rod is threadedly connected to the transmission frame, a light head is fixedly installed on the bottom of the transmission frame, the illuminance meter and the light head are electrically connected through a wire, and the transmission motor drives the threaded transmission rod to rotate, so that the transmission frame drives the light head to move to detect the light intensity on the surface of the LED display screen module.

[0008] Furthermore, in order to achieve rotational limitation of the transmission frame when it moves, a limiting groove is opened on the surface of the limiting frame, limiting blocks are fixedly connected on both sides of the bottom of the transmission frame, the limiting blocks are slidably installed in the limiting grooves, a positioning plate is fixedly installed on one side of the surface of the supporting base plate, one end of the threaded transmission rod is rotatably connected to the positioning plate, and the sliding cooperation between the limiting block and the limiting groove can prevent the transmission frame from rotating and deviating when it moves.

[0009] Furthermore, in order to realize the power connection of the LED display screen module, the LED display screen module is slidably installed in the sliding groove, and a power plug is connected to one side of the LED display screen module through a wire. The power plug cooperates with the output interface, and the LED display screen module is installed in the output interface through the power plug to realize power supply.

[0010] Furthermore, in order to sound an alarm when an excessive voltage is detected, a buzzer is fixedly installed on one side of the surface of the supporting base plate, and the buzzer sounds an alarm when the device detects an excessive voltage.

[0011] Furthermore, in order to facilitate the rotation of the extruded threaded rod, a twisting rod is fixedly installed on the top end of the extruded threaded rod, and the extruded threaded rod is rotated by the twisting rod.

[0012] Furthermore, in order to fix the support base plate, a positioning ring is fixedly installed on one side surface of the support base plate, and the support base plate is supported and fixed by the positioning ring.

[0013] The beneficial effects of the utility model are:

[0014] 1. The transmission frame is driven by the threaded transmission rod to move horizontally above the LED display module, so that the light head under the transmission frame can detect the light intensity of the LED display module. When it is detected that the light intensity on the surface of the LED display module is insufficient, the detection signal is transmitted to the PLC controller, and the PLC controller controls the buzzer to sound an alarm to remind maintenance personnel to carry out inspection and replacement.

[0015] 2. Use a digital voltmeter to detect the power supply voltage input to the input interface. When the input voltage value is too large, the PLC controller controls the electric telescopic rod to extend, separates the protection plug in the overvoltage protection slot from the protection jack, disconnects the power supply of the LED display module, and realizes overvoltage protection of the LED display module. The backup battery continues to provide power for the PLC controller and controls the buzzer to sound an alarm to remind personnel to perform maintenance, effectively preventing excessive voltage from damaging the LED display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the surface structure of an LED detection device with an overvoltage protection device according to an embodiment of the utility model;

[0018] Figure 2 This is a side view of an LED detection device with an overvoltage protection device according to an embodiment of the utility model

[0019] Figure 3 It is a schematic diagram of the internal structure of an overvoltage protection slot in an LED detection device with an overvoltage protection device according to an embodiment of the utility model;

[0020] Figure 4 It is a back view of an LED detection device with an overvoltage protection device according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Support base plate; 2. Limit frame; 3. Sliding groove; 4. Extrusion threaded rod; 5. Extrusion plate; 6. Input interface; 7. Digital voltmeter; 8. Overvoltage protection groove; 9. Output interface; 10. Protection plug; 11. Protection jack; 12. Push plate; 13. Electric telescopic rod; 14. PLC controller; 15. Backup battery; 16. Detection mechanism; 1601. Lux meter; 1602. Support frame; 1603. Transmission motor; 1604. Threaded transmission rod; 1605. Transmission frame; 1606. Light head; 1607. Limit groove; 1608. Limit block; 17. Positioning plate; 18. LED display module; 19. Power plug; 20. Buzzer; 21. Twist rod; 22. Positioning ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] According to an embodiment of the utility model, an LED detection device with an overvoltage protection device is provided.

[0025] Embodiment 1:

[0026] like Figure 1-Figure 4As shown, according to an embodiment of the utility model, an LED detection device with an overvoltage protection device comprises a metal rectangular support base plate 1, a pair of limit frames 2 are fixedly installed on both sides of the surface of the support base plate 1, a sliding groove 3 is opened inside the limit frame 2, an LED display screen module 18 is slidably installed in the sliding groove 3, one side of the LED display screen module 18 is connected to a power plug 19 through a wire, an extrusion threaded rod 4 is threadedly connected to the surface of the limit frame 2, an extrusion plate 5 is rotatably installed on one end of the extrusion threaded rod 4, and a twisting rod 21 is fixedly connected to the other end, and the extrusion threaded rod 4 is rotated by twisting the rod 21, so that the extrusion threaded rod 4 drives the extrusion plate 5 to move downward to extrude and clamp the two sides of the LED display screen module 18, so as to achieve fixed installation; an input interface 6 is opened on one side of the support base plate 1 for connecting an external power supply; a digital voltmeter 7 is fixedly installed on one side of the input interface 6 for voltage detection of the external power supply; an overvoltage protection groove 8 is opened on one side of the surface of the support base plate 1, and an output interface 9 is opened on one side of the overvoltage protection groove 8, and the power plug 19 cooperates with the output interface 9 for L The ED display screen module 18 provides power; a protective plug 10 is installed on one side of the inner wall of the overvoltage protection slot 8, and the protective plug 10 is electrically connected to the output interface 9 through a wire. A protective jack 11 is opened on the other side, and the protective jack 11 is electrically connected to the input interface 6 through a wire. The protective jack 11 cooperates with the protective plug 10, and a push plate 12 is fixedly connected to the two side surfaces of the protective plug 10. An electric telescopic rod 13 is fixedly installed on both sides of the protective jack 11. The end of the electric telescopic rod 13 is connected to the push plate 12, and the electric telescopic rod 13 drives The push plate 12 moves to achieve the connection and separation of the protection socket 11 and the protection plug 10; a plc controller 14 is fixedly installed on the surface of the supporting base plate 1 for controlling various electrical components; a backup battery 15 is fixedly installed on one side of the overvoltage protection slot 8, and the backup battery 15 is electrically connected to various electrical components through wires. When the protection socket 11 is separated from the protection plug 10, the backup battery 15 provides power; a detection mechanism 16 is provided on one side of the surface of the supporting base plate 1 for detecting the light intensity of the LED display module 18.

[0027] See also Figure 1-Figure 4The detection mechanism 16 includes an illuminance meter 1601 on the surface of the supporting base plate 1, a support frame 1602 is fixedly installed on the side of the surface of the supporting base plate 1 away from the backup battery 15, a transmission motor 1603 is fixedly installed above the support frame 1602, a threaded transmission rod 1604 is fixedly connected to the transmission shaft of the transmission motor 1603, a transmission frame 1605 is threadedly connected to the surface of the threaded transmission rod 1604, two pairs of light heads 1606 are fixedly installed at the bottom of the transmission frame 1605, the illuminance meter 1601 and the light head 1606 are electrically connected through a wire, the transmission motor 1603 drives the threaded transmission rod 1604 to rotate, so that the transmission frame 1605 drives the light head 1606 to move to detect the light intensity on the surface of the LED display module 18. ; A limiting groove 1607 is opened on the surface of the limiting frame 2, and limiting blocks 1608 are fixedly connected to both sides of the bottom of the transmission frame 1605. The limiting blocks 1608 are slidably installed in the limiting grooves 1607. A positioning plate 17 is fixedly installed on one side of the surface of the supporting base plate 1, and one end of the threaded transmission rod 1604 is rotatably connected to the positioning plate 17. The limiting block 1608 and the limiting groove 1607 are slidably matched to prevent the transmission frame 1605 from rotating and deflecting when moving; a buzzer 20 is fixedly installed on one side of the surface of the supporting base plate 1, which is used to issue an alarm when the voltage of the LED display module 18 is too large or the light intensity is insufficient; a positioning ring 22 is fixedly installed on one side of the surface of the supporting base plate 1, which is used to fix the supporting base plate 1 with bolts or positioning pins.

[0028] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0029] In actual application, the two sides of the LED display screen module 18 are slid and installed in the sliding groove 3, and the extrusion threaded rod 4 is rotated by twisting the rod 21, so that the extrusion threaded rod 4 drives the extrusion plate 5 to move downward to extrude and clamp the two sides of the LED display screen module 18, so as to realize fixed installation. The inside of the supporting base plate 1 is powered on through the input interface 6, and the power enters the output interface 9 through the overvoltage protection groove 8. After setting a voltage threshold for the PLC controller 14, the power plug 19 on one side of the LED display screen module 18 is installed in the output interface 9 of the supporting base plate 1, and the LED display screen module 18 is connected to the power supply. When it is necessary to detect the light intensity on the surface of the LED display screen module 18, the transmission motor 1603 is started through the PLC controller 14, and then the threaded connection between the threaded transmission rod 1604 and the transmission frame 1605, and the rotation limit of the limit block 1608 and the limit groove 1607 are used to make the threaded transmission rod 1604 drive the transmission frame 1605 It moves horizontally above the LED display screen module 18, so that the illumination head 1606 and the illuminance meter 1601 under the transmission frame 1605 analyze and detect the light intensity of the LED display screen module 18. When it is detected that the light intensity on the surface of the LED display screen module 18 is insufficient, the detection signal is transmitted to the PLC controller 14, and the PLC controller 14 controls the buzzer 20 to sound an alarm to remind maintenance personnel to carry out inspection and replacement; when the digital voltmeter 7 detects that the voltage of the input interface 6 is too large, the PLC controller 14 controls the electric telescopic rod 13 to extend, and separates the protection plug 10 in the overvoltage protection slot 8 from the protection jack 11 through the push plate 12, so that the LED display screen module 18 is disconnected from the power supply, and the overvoltage protection of the LED display screen module 18 is realized. At this time, the backup battery 15 continues to provide power to the PLC controller 14 and the buzzer 20, and controls the buzzer 20 to sound an alarm to remind personnel to carry out maintenance, thereby completing the overvoltage protection of the LED display screen module 18.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED detection device with an overvoltage protection device, characterized in that: The invention comprises a supporting base plate (1), wherein both sides of the surface of the supporting base plate (1) are fixedly mounted with limiting frames (2), a sliding groove (3) is provided inside the limiting frames (2), a surface of the limiting frames (2) is threadedly connected with an extrusion threaded rod (4), one end of the extrusion threaded rod (4) is rotatably mounted with an extrusion plate (5), a surface of one side of the supporting base plate (1) is provided with an input interface (6), a side of the input interface (6) is fixedly mounted with a digital voltmeter (7), a surface of one side of the supporting base plate (1) is provided with an overvoltage protection groove (8), a side of the overvoltage protection groove (8) is provided with an output interface (9), and the overvoltage protection groove (8) is provided with an output interface (9). A protective plug (10) is installed on one side of the inner wall, and a protective socket (11) is opened on the other side, the protective socket (11) matches the protective plug (10), the two side surfaces of the protective plug (10) are fixedly connected with a push plate (12), the two sides of the protective socket (11) are fixedly installed with an electric telescopic rod (13), the ends of the electric telescopic rod (13) are connected to the push plate (12), a PLC controller (14) is fixedly installed on the surface of the supporting base plate (1), a backup battery (15) is fixedly installed on one side of the overvoltage protection slot (8), and a detection mechanism (16) is provided on one side of the surface of the supporting base plate (1).

2. The LED detection device with overvoltage protection device according to claim 1, characterized in that: The detection mechanism (16) comprises an illuminance meter (1601) on the surface of a supporting base plate (1); a support frame (1602) is fixedly mounted on one side of the surface of the supporting base plate (1); a transmission motor (1603) is fixedly mounted above the support frame (1602); a threaded transmission rod (1604) is fixedly connected to the transmission shaft of the transmission motor (1603); a transmission frame (1605) is threadedly connected to the surface of the threaded transmission rod (1604); a light head (1606) is fixedly mounted on the bottom of the transmission frame (1605); and the illuminance meter (1601) and the light head (1606) are electrically connected via a wire.

3. The LED detection device with overvoltage protection device according to claim 2, characterized in that: A limiting groove (1607) is formed on the surface of the limiting frame (2); limiting blocks (1608) are fixedly connected to both sides of the bottom of the transmission frame (1605); the limiting blocks (1608) are slidably installed in the limiting grooves (1607); a positioning plate (17) is fixedly installed on one side of the surface of the supporting base plate (1); and one end of the threaded transmission rod (1604) is rotatably connected to the positioning plate (17).

4. The LED detection device with overvoltage protection device according to claim 1, characterized in that: An LED display screen module (18) is slidably installed in the sliding groove (3), and one side of the LED display screen module (18) is connected to an electric plug (19) via a wire, and the electric plug (19) cooperates with the output interface (9).

5. The LED detection device with overvoltage protection device according to claim 1, characterized in that: A buzzer (20) is fixedly mounted on one side of the surface of the supporting base plate (1).

6. The LED detection device with overvoltage protection device according to claim 1, characterized in that: A twisting rod (21) is fixedly mounted on the top end of the extruded threaded rod (4).

7. The LED detection device with overvoltage protection device according to claim 1, characterized in that: A positioning ring (22) is fixedly mounted on one side surface of the supporting base plate (1).

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