CN213482383U

CN213482383U - PCB circuit board FCT test fixture

Info

Publication number: CN213482383U
Application number: CN202021956227.0U
Authority: CN
Inventors: 戚励文; 张振番; 尚宇
Original assignee: China Key System and Integrated Circuit Co Ltd
Current assignee: China Key System and Integrated Circuit Co Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-06-18
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a PCB circuit board FCT test fixture, include test platform and install in the inside test fixture of test platform, one side of test platform prolongs vertical direction an organic whole and is provided with the spud pile, the side of spud pile is close to top department and is provided with the handle, the side that the handle was kept away from mutually articulates there is the draw-in groove of U-shaped structure, the bottom of draw-in groove is connected with the cage through the connecting rod, one side that test platform's top surface kept away from the spud pile is installed seven state lamps, three function and is turned round and a total power ship type switch, test fixture includes MCU master control, non-isolation voltage test and isolation conversion module, isolation voltage test module, infrared IR test module, LED pilot lamp module, button module, serial ports. By using the above devices in combination, the operation required for testing the load device can be simplified, the test cost can be reduced, and the labor expenditure and the processing cost can be reduced.

Description

PCB circuit board FCT test fixture

Technical Field

The utility model relates to a relevant technical field of PCB test fixture specifically is a PCB circuit board FCT test fixture.

Background

Most of the existing FCT detection equipment is tested item by item with a single function. For example, the electric quantity measurement calibration generally needs to calibrate equipment, a product needs to be connected to a mains supply, a fixed load is loaded, and the electric quantity tested by the equipment can be corrected to a standard value range through software. For example, wifi signal networking test is performed in a mode of networking by using a single device under a wifi environment and unbinding after testing, generally, 2-3min is consumed, and working hours and processing cost are increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB circuit board FCT test fixture to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a PCB circuit board FCT test fixture, includes test platform and installs in the inside test fixture of test platform, one side of test platform prolongs vertical direction an organic whole and is provided with the spud pile, the side of spud pile is close to top department and is provided with the handle, the side that the handle was kept away from mutually articulates there is the draw-in groove of U-shaped structure, the bottom of draw-in groove is connected with the cage through the connecting rod, seven state lamps, three function buttons and a total power ship type switch are installed to one side that the spud pile was kept away from to test platform's top surface, test fixture includes MCU master control, non-isolation voltage test and isolation conversion module, isolation voltage test module, infrared IR test module, LED pilot lamp module, key module, serial ports.

Preferably, the information input end of the MCU master control is respectively connected with the output ends of the non-isolation voltage testing and isolation conversion module, the isolation voltage testing module, the infrared IR testing module and the key module through wires, and the input end of the key module is connected with the output end of the function button through a wire.

Preferably, the information output end of the MCU master control is respectively connected with the input ends of the LED indicator light module and the serial port through wires, and the output end of the LED indicator light module is connected with the input end of the status light through a wire.

Preferably, one side of the fixing pile close to the handle is integrally provided with a limiting frame, and the connecting rod is inserted in the limiting frame.

Drawings

FIG. 1 is an electrical schematic diagram of a test fixture according to an embodiment of the present invention;

FIG. 2 is a power circuit layout diagram according to an embodiment of the present invention;

FIG. 3 is a design diagram of a non-isolated voltage test and isolation conversion circuit according to an embodiment of the present invention;

FIG. 4 is a design diagram of an isolation voltage test circuit according to an embodiment of the present invention;

FIG. 5 is a diagram of the IR testing circuit according to an embodiment of the present invention;

FIG. 6 is a diagram of the embodiment of the present invention;

FIG. 7 is a circuit diagram of an LED indicating lamp according to an embodiment of the present invention;

FIG. 8 is a design diagram of a serial port circuit according to an embodiment of the present invention;

FIG. 9 is a side view of a test platform according to an embodiment of the present invention;

FIG. 10 is a schematic block diagram of a test fixture system according to an embodiment of the present invention;

fig. 11 is a design diagram of the MCU master control circuit according to the embodiment of the present invention.

In the figure: 1. a test platform; 2. fixing the pile; 3. a handle; 4. a card slot; 5. a connecting rod; 6. an isolation cover; 7. a status light; 8. function button; 9. a boat-shaped switch; 10. testing the tool; 11. MCU master control; 12. a non-isolated voltage testing and isolating conversion module; 13. an isolation voltage test module; 14. an infrared IR test module; 15. an LED indicator light module; 16. a key module; 17. a serial port; 18. a limiting frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-11, the embodiment provides a PCB FCT test fixture, which includes a test platform 1 and a test fixture 10 installed inside the test platform 1, one side of the test platform 1 is provided with a fixing pile 2 along a vertical direction, a handle 3 is arranged at a position close to a top end of a side surface of the fixing pile 2, a clamping groove 4 of a U-shaped structure is hinged to a side surface far away from the handle 3, a bottom end of the clamping groove 4 is connected with an isolation cover 6 through a connecting rod 5, seven status lamps 7, three function knobs 8 and a general power boat-shaped switch 9 are installed at a side far away from the fixing pile 2 of a top surface of the test platform 1, the test fixture 10 includes an MCU main control 11, a non-isolated voltage test and isolation conversion module 12, an isolated voltage test module 13, an infrared IR test module 14, an LED indicator lamp module 15, a key module 16 and.

The information input end of the MCU main control 11 is respectively connected with the output ends of the non-isolation voltage testing and isolation conversion module 12, the isolation voltage testing module 13, the infrared IR testing module 14 and the key module 16 through leads, and the input end of the key module 16 is connected with the output end of the function knob 8 through leads.

The information output end of the MCU main control 11 is respectively connected with the input ends of the LED indicating lamp module 15 and the serial port 17 through wires, and the output end of the LED indicating lamp module 15 is connected with the input end of the status lamp 7 through wires.

One side of the fixing pile 2 close to the handle 3 is integrally provided with a limiting frame 18, and the connecting rod 5 is inserted in the limiting frame 18.

In the embodiment, a protective isolation cover 6 is added in the functional area of the press handle 3, and a socket is added on the protective isolation cover 6 for accessing and using the load detected by the power metering calibration function; an infrared emission lamp groove and an infrared IR testing module 14 are reserved on the operation surface of the tool. The test function is mainly realized by matching and using all electrical components assembled in the tool.

The MCU main control 11, this part singlechip adopt CKS32F030C8T6, gather, handle and output each way signal. Carry out voltage detection and networking, measurement, infrared function to the smart jack integrated circuit board and detect, judge through the procedure, judge qualified and unqualified through status light 7 at last.

Non-isolation voltage test and isolation conversion module 12, the voltage of this part test is because the direct step-down design of diode that the circuit adopted, and this scheme directly adopts the isolation opto-coupler, provides high low level signal for the singlechip.

Isolation voltage test module 13, this part is isolation voltage test part, for control voltage acquisition numerical value in singlechip sampling range, has used two 10K (1%) divider resistance, carries out 1/2 partial pressure with 5V, 3.3V, and the current-limiting resistance of rethread 1K carries out AD sampling for the singlechip.

The infrared IR testing module 14 controls the base electrode of the triode of the infrared part of the socket through the SW control pin and the thimble of the singlechip to send out a specific square wave signal. Because the infrared transmitting tube part of the socket is designed to be connected with four infrared tubes in parallel, the infrared IR testing module 14 cannot receive a limit number to judge whether the four infrared tubes are all good, the voltage values of the current-limiting resistors of the four infrared tubes are subjected to AD sampling, and the quality of the infrared tubes is judged by judging the AD sampling values.

The function button 8 and the key module 16 are key input parts of the tool panel, and by pressing the function buttons 8 with different functions, low level signals can be given to the single chip microcomputer to realize different functions.

LED pilot lamp module 15 and status light 7, this part is the judgement pilot lamp of different functions on the frock panel to whether the operator judges the smart jack integrated circuit board and passes through the detection.

The serial port 17 is a communication part of the tool board card and the intelligent socket board card, the tool enters a test mode through the serial port starting socket board card, after detection is finished, the socket board card returns data to the tool board card through the serial port, judgment is conducted, and finally display is conducted through the state lamp 7.

When the on-site measurement is carried out, the intelligent socket board card is installed on the test platform 1 according to the positioning pin, the handle 3 is pressed down, the isolation cover 6 completely covers the board card, then the ship-shaped switch 9 on the right side is opened, and if the qualified indicator light 7 is green, the board card is judged to be qualified.

Example 2

Referring to fig. 1-11, a further improvement is made on the basis of embodiment 1: and pushing TX and RX thimbles of the serial port 17 to test points corresponding to the socket board card, externally connecting a 500W high-precision load, and setting a matched WIFI name and password. Turning on a power switch, waiting for the initialization success of the tooling plate, turning on the status lights 7, starting to sequentially press networking, metering and infrared respectively, and allowing the test plate to automatically detect the socket board card, waiting for the detection to be completed, and indicating that the socket board card is qualified in detection if all the status lights 7 are green.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB circuit board FCT test fixture, includes test platform (1) and installs in test fixture (10) of test platform (1) inside, its characterized in that: one side of test platform (1) extends vertical direction an organic whole and is provided with spud pile (2), the side of spud pile (2) is close to top department and is provided with handle (3), the side that handle (3) kept away from mutually articulates there is draw-in groove (4) of U-shaped structure, the bottom of draw-in groove (4) is connected with cage (6) through connecting rod (5), seven state lamps (7), three function buttons (8) and one total power ship type switch (9) are installed to one side that spud pile (2) were kept away from to the top surface of test platform (1), test fixture (10) include MCU master control (11), non-isolated voltage test and isolation conversion module (12), isolated voltage test module (13), infrared IR test module (14), LED pilot lamp module (15), button module (16), serial ports (17).

2. The PCB circuit board FCT test fixture of claim 1, characterized in that: the information input end of the MCU master control (11) is respectively connected with the output ends of the non-isolation voltage testing and isolation conversion module (12), the isolation voltage testing module (13), the infrared IR testing module (14) and the key module (16) through wires, and the input end of the key module (16) is connected with the output end of the function button (8) through wires.

3. The PCB circuit board FCT test fixture of claim 1, characterized in that: the information output end of the MCU master control unit (11) is respectively connected with the input ends of the LED indicator light module (15) and the serial port (17) through wires, and the output end of the LED indicator light module (15) is connected with the input end of the status light (7) through wires.

4. The PCB circuit board FCT test fixture of claim 1, characterized in that: one side of the fixing pile (2) close to the handle (3) is integrally provided with a limiting frame (18), and the connecting rod (5) is inserted in the limiting frame (18).