CN211697967U

CN211697967U - Backlight VF detector

Info

Publication number: CN211697967U
Application number: CN202020210697.6U
Authority: CN
Inventors: 山口勝
Original assignee: Ways Electron Co ltd
Current assignee: Ways Electron Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-10-16
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses a backlight VF detector, including the instrument body, be equipped with switch, detection switch, bee calling organ, ampere meter and man-machine interface on the instrument body, inside PLC controller, the AD analog reading module of being equipped with of instrument body to and seven voltages send module and a resistance transmission module, and the switching power supply is used to the power strip of lighting a lamp and lighting a lamp of backlight constant current in addition. This backlight VF detector has and lights a lamp to various backlights and module, and to its voltage, electric current, resistance, short circuit, open circuit, detection function such as electric leakage, adopt PLC write-in control program, and cooperate high-accuracy detection module and man-machine exchange system, the data that detect are more accurate, and can be with all detect data faithful demonstration on human-machine interface, make things convenient for operating personnel inquiry data, and increased warning inquiry function, can effectual detection backlight and the harmfulness of module, prevent that bad product from flowing into the customer end.

Description

Backlight VF detector

Technical Field

The utility model belongs to photoelectric industry detecting instrument, specific saying so relates to a backlight VF detector.

Background

At present, in the backlight source and module manufacturing industry, most of detection voltages, currents and resistances are detected by means of a conventional multimeter, a voltmeter, an ammeter, a resistance meter and the like, the detection precision error is large, items to be detected need to be separated for one item detection, and the efficiency is very low. And few instruments can be used to detect the short circuit, open circuit and leakage of the backlight and the module.

Disclosure of Invention

In order to overcome the defects, the utility model provides a backlight VF detector has and lights a lamp to various backlights and module to and to its voltage, electric current, resistance, short circuit, open circuit, detection function such as electric leakage, improve detection efficiency and the convenience of use greatly.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: a backlight VF detector comprises an instrument body, a power switch, a detection switch, a buzzer, a current meter and a human-computer interface are arranged on the instrument body, the instrument body is internally provided with a PLC controller, an AD analog quantity reading module, a first voltage transmission module, a second voltage transmission module, a third voltage transmission module, a fourth voltage transmission module, a fifth voltage transmission module, a sixth voltage transmission module, a seventh voltage transmission module, a resistance transmission module, a backlight constant-current lighting power panel and a lighting switch power supply, the switch power supply for lighting is connected with the backlight constant-current lighting power supply board, and the backlight constant-current lighting power supply board is respectively connected with the first voltage transmission module, the second voltage transmission module, the third voltage transmission module, the fourth voltage transmission module, the fifth voltage transmission module and the sixth voltage transmission module; the first voltage transmission module, the second voltage transmission module, the third voltage transmission module, the fourth voltage transmission module, the fifth voltage transmission module, the sixth voltage transmission module and the seventh voltage transmission module respectively detect a voltage value output analog quantity signal corresponding to a backlight PFC (power factor correction), the resistance transmission module detects a corresponding resistance value output analog quantity signal of a thermistor of the backlight PFC and simultaneously transmits each analog quantity signal to the AD analog quantity reading module, the AD analog quantity reading module transmits the read data of the transmission module to the PLC, and the PLC obtains the voltage, current, resistance, short circuit, open circuit and leakage results of the backlight PFC according to the received data of each transmission module and displays the results on the human-computer interface; the PLC is internally provided with standard values of voltage, current, resistance, short circuit, open circuit and electric leakage of a backlight PFC, and if one detection result exceeds the corresponding standard value, the PLC drives the buzzer to generate an alarm signal.

As a further improvement, the power switch control the opening of backlight VF detector power, detect on-off control the opening of PLC controller.

The utility model has the advantages that: the backlight VF detector has the functions of lighting various backlights and modules, lighting the voltages, currents, resistors, short circuits, open circuits, electric leakage and the like, is an automatic detection instrument integrating lighting, voltages, currents, resistors, short circuits, open circuits, electric leakage and the like into a whole, adopts a PLC (programmable logic controller) write-in control program, is matched with a high-precision detection module and a human-computer exchange system, and is more accurate in detected data, and can display all detected data on a human-computer interface faithfully, so that an operator can conveniently inquire the data, an alarm inquiry function is added, defects of the backlights and the modules can be effectively detected, and defective products are prevented from flowing into a client.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic diagram of the internal wiring of the present invention.

The following description is made with reference to the accompanying drawings:

1-apparatus body; 2-power switch;

3-detection switch; 4-buzzer;

5-ammeter; 6-human-machine interface;

7-PLC controller; 8-AD analog quantity reading module;

91 — a first voltage transmitting module; 92-second voltage transmitting module;

93-third voltage transmitting module; 94-fourth voltage transmitting module;

95-fifth Voltage transmitting Module; 96-sixth voltage transmitting module;

97-seventh voltage transmitting module; 98-resistance transmitting module;

10-backlight source constant current lighting power supply board; and 11-switching power supply for lighting.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.

Referring to fig. 1-3, for the utility model relates to a backlight VF detector, including instrument body 1, be equipped with switch 2, detection switch 3, bee calling organ 4, ampere meter 5 and human-computer interface 6 on the instrument body, inside PLC controller 7, AD analog reading module 8, first voltage transmission module 91, second voltage transmission module 92, third voltage transmission module 93, fourth voltage transmission module 94, fifth voltage transmission module 95, sixth voltage transmission module 96, seventh voltage transmission module 97, resistance transmission module 98, backlight constant current lighting power supply board 10 and the switching power supply 11 of lighting a lamp of being equipped with of instrument body, lighting a lamp is connected with switching power supply 11 the backlight constant current lighting power supply board 10, backlight constant current lighting power supply board 10 connects respectively first voltage transmission module 91, second voltage transmission module 92, A third voltage transmission module 93, a fourth voltage transmission module 94, a fifth voltage transmission module 95, and a sixth voltage transmission module 96; the first voltage transmission module 91, the second voltage transmission module 92, the third voltage transmission module 93, the fourth voltage transmission module 94, the fifth voltage transmission module 95, the sixth voltage transmission module 96 and the seventh voltage transmission module 97 respectively detect a voltage value corresponding to a backlight source PFC to output an analog quantity signal, the resistance transmission module 98 detects a corresponding resistance value of a thermistor of the backlight source PFC to output an analog quantity signal, and simultaneously transmits each analog quantity signal to the AD analog quantity reading module 8, the AD analog quantity reading module 8 transmits the read data of the transmission module data to the PLC controller 7, and the PLC controller 7 obtains the voltage, current, resistance, short circuit, open circuit and leakage results of the backlight source PFC according to the received data of each transmission module data to display the human-computer interface 6; the PLC controller 7 is internally provided with standard values of voltage, current, resistance, short circuit, open circuit and electric leakage of a backlight PFC, and if one detection result exceeds the corresponding standard value, the PLC controller 7 drives the buzzer 4 to generate an alarm signal. The power switch 2 controls the power supply of the backlight VF detector to be turned on, and the detection switch 3 controls the PLC controller 7 to be turned on.

The backlight VF detector is simple to operate, when the backlight VF detector is used, the backlight and the module to be detected are placed into the jig, the automatic detection switch is triggered, and the detector can detect all detection items of voltage, current, resistance, short circuit, open circuit, electric leakage and the like of the product at one time. If any bad link which is not in the specification is detected, the instrument gives an alarm to prompt, and the detected bad part is displayed on a human-computer interface, so that quality personnel can conveniently check the bad reason.

The PLC is used for controlling, reading and processing the data signals of the transmission module for a main program, the voltage transmission module detects a voltage value and outputs an analog quantity signal, the resistance transmission module detects a resistance value and outputs the analog quantity signal, and the man-machine interface is an operation interface, display data and the like. Specifically, the first to sixth voltage transmission modules detect the voltage of the backlight FPC and detect open-circuit short circuit, the seventh voltage transmission module detects the short circuit between the backlight FPC loop and the sheet metal part, the resistor transmission module detects the thermistor of the backlight FPC, and the first to seventh voltage transmission modules and the resistor transmission module are analog quantity conversion modules.

Therefore, the backlight VF detector has the functions of lighting various backlights and modules and detecting the voltage, the current, the resistance, the short circuit, the open circuit, the electric leakage and the like of the backlights, is an automatic detector integrating the lighting, the voltage, the current, the resistance, the short circuit, the open circuit, the electric leakage and the like into a whole, adopts a PLC (programmable logic controller) to write in a control program, and is matched with a high-precision detection module and a man-machine exchange system, the detected data are more accurate, all the detected data can be displayed on a man-machine interface faithfully, the data can be conveniently inquired by an operator, the alarm inquiry function is added, the defects of the backlights and the modules can be effectively detected, and the defective products are prevented from flowing into a client.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a backlight VF detector, includes instrument body (1), its characterized in that: the instrument is characterized in that a power switch (2), a detection switch (3), a buzzer (4), an ammeter (5) and a human-computer interface (6) are arranged on the instrument body, a PLC (programmable logic controller) controller (7), an AD (analog-to-digital) analog quantity reading module (8), a first voltage transmission module (91), a second voltage transmission module (92), a third voltage transmission module (93), a fourth voltage transmission module (94), a fifth voltage transmission module (95), a sixth voltage transmission module (96), a seventh voltage transmission module (97), a resistance transmission module (98), a backlight constant-current lighting power panel (10) and a lighting switch power supply (11) are arranged in the instrument body, the lighting switch power supply (11) is connected with the backlight constant-current lighting power panel (10), and the backlight constant-current lighting power panel (10) is respectively connected with the first voltage transmission module (91), the voltage transmission module (, A second voltage transmission module (92), a third voltage transmission module (93), a fourth voltage transmission module (94), a fifth voltage transmission module (95) and a sixth voltage transmission module (96); the first voltage transmission module (91), the second voltage transmission module (92), the third voltage transmission module (93), the fourth voltage transmission module (94), the fifth voltage transmission module (95), the sixth voltage transmission module (96) and the seventh voltage transmission module (97) respectively detect a voltage value corresponding to the backlight PFC and output an analog quantity signal, and the resistance transmitting module (98) detects the corresponding resistance value of the thermistor of the backlight PFC and outputs an analog quantity signal, and simultaneously transmits each analog quantity signal to the AD analog quantity reading module (8), the AD analog quantity reading module (8) transmits the read data of the transmitting module to the PLC controller (7), the PLC (7) obtains the voltage, current, resistance, short circuit, open circuit and leakage results of the PFC of the backlight source according to the received data of each transmission module and displays the results to the human-computer interface (6); the PLC controller (7) is internally provided with standard values of voltage, current, resistance, short circuit, open circuit and electric leakage of a backlight PFC, and if one detection result exceeds the corresponding standard value, the PLC controller (7) drives the buzzer (4) to generate an alarm signal.

2. The backlight VF detector of claim 1, wherein: the power switch (2) controls the power of the backlight VF detector to be turned on, and the detection switch (3) controls the PLC controller (7) to be turned on.