CN212780966U

CN212780966U - Substrate voltage testing tool

Info

Publication number: CN212780966U
Application number: CN202021181612.2U
Authority: CN
Inventors: 靳洪伟; 黄朝梁
Original assignee: SHENZHEN BIGTIDE TECHNOLOGY CO LTD
Current assignee: SHENZHEN BIGTIDE TECHNOLOGY CO LTD
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-23
Anticipated expiration: 2030-06-23

Abstract

The utility model provides a base plate voltage test fixture belongs to the base plate test field. The utility model discloses a base, the insulating tray of setting on the base, be equipped with on the insulating tray with base plate voltage test point electric connection's probe, still include with probe electric connection, be used for the voltmeter that shows the array of base plate test point voltage, the quantity of voltmeter is the same with the quantity of test point to the one-to-one. The utility model has the advantages that: good practicability, strong reliability and simple operation.

Description

Substrate voltage testing tool

Technical Field

The utility model relates to a base plate test fixture especially relates to a base plate voltage test fixture.

Background

When the substrate is tested, the voltages of a plurality of different point positions on the substrate need to be detected, and if the voltage meter is used for manual detection one by one, the efficiency is greatly influenced. Moreover, the wires are inserted on the front side of the substrate, and the voltage detection points are on the back side of the substrate, so that the handheld voltmeter test is very inconvenient. Moreover, in the testing process, if the substrate cannot be fixed, the wire is inserted and drawn, and the substrate is easily damaged by collision or has poor performance and other hidden troubles.

SUMMERY OF THE UTILITY MODEL

For solving the problem among the prior art, the utility model provides a substrate voltage test fixture.

The utility model discloses a base, the insulating tray of setting on the base, be equipped with on the insulating tray with base plate voltage test point electric connection's probe, still include with probe electric connection, be used for the voltmeter that shows the array of base plate test point voltage, the quantity of voltmeter is the same with the quantity of test point to the one-to-one.

The utility model discloses do further improvement, still including setting up insulating tray top, be used for compressing tightly the clamp plate of test substrate, and the drive the actuating lever of clamp plate up-and-down motion.

The utility model discloses make further improvement, the actuating lever is the push rod through the support setting in the clamp plate top, the end and the clamp plate fixed connection of push rod.

The utility model discloses do further improvement, still be equipped with power source, total switch and voltage conversion module on the base, wherein, voltage conversion module includes for the first voltage conversion unit of base plate electricity and the second voltage conversion unit for the voltmeter power supply, power source external power supply, the output passes through total switch and links to each other with two way voltage conversion units.

The utility model discloses make further improvement, still be equipped with the second switch of electricity on the control substrate between first voltage conversion unit and the probe.

The utility model discloses do further improvement, the voltmeter is equipped with three wiring pin, and wherein first pin connects second voltage conversion unit output positive pole, and the second pin connects second voltage conversion unit output negative pole and measuring terminal negative pole respectively, and the third pin connects the measuring terminal positive pole.

The utility model discloses make further improvement, be equipped with the location structure who advances line location to the base plate on the insulating tray.

The utility model discloses make further improvement, location structure corresponds the reference column that sets up for a plurality of and base plate locating hole.

Compared with the prior art, the beneficial effects of the utility model are that: the substrate is directly placed on the corresponding insulating tray, and is accurately connected with the substrate by using probes and wires in the industrial box, so that the manual insertion action is reduced, and the operation steps are simplified. In addition, the voltage value of the corresponding point position of the substrate can be rapidly and visually detected by utilizing a voltmeter preset by the tool; the testing efficiency is greatly improved.

Drawings

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

FIG. 2 is a schematic view of the back mechanism of the present invention;

FIG. 3 is a schematic view of an insulating tray;

FIG. 4 is a schematic diagram of the power supply principle;

FIG. 5 is a schematic diagram of a voltage test principle;

FIG. 6 is a schematic view of the internal wiring and connection structure of the probe;

FIG. 7 is a schematic diagram of a voltmeter connection.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the utility model discloses a box-type base 3 sets up the insulating tray 6 in base 3 left side top, be equipped with TP1-TP12 totally 12 on the insulating tray 6 with base plate voltage test point electric connection's probe 61, still include with probe 61 electric connection, be used for showing 12 voltmeters 1 of the array of base plate test point voltage, voltmeter 1 passes through voltmeter support 2 to be fixed in base 3 right side top. Each voltmeter 1 is used to test the voltage of one substrate test point.

The test device also comprises a pressing plate 7 which is arranged above the insulating tray 6 and is used for pressing the test substrate, and a driving rod 9 for driving the pressing plate to move up and down. The driving rod 9 of this example is a push rod arranged above the pressure plate 7 through a bracket 8, and the tail end of the push rod is fixedly connected with the pressure plate. In addition, the support 8 is also provided with a guide post 12, and the pressing plate is sleeved on the guide post 12 and can move up and down along the guide post 12. The drive rod 9 of this example can also be a cylinder or motor drive rod. The insulating tray 6 and the pressing plate 7 are both made of transparent acrylic plates, so that the test is more visual.

The base 3 of this embodiment is further provided with a power interface 10 and a power switch 5, and the base 3 is internally provided with leads respectively connected with the probe, the voltmeter and the power supply. A hasp 11 and a handle 4 for opening or closing the base 3 are further arranged on one side of the base 3.

As shown in fig. 3, the insulating tray 3 of this embodiment is provided with a positioning structure for positioning the substrate. The positioning structure of this embodiment is a plurality of positioning posts 62 corresponding to the substrate positioning holes, or a plurality of positioning ribs disposed around the substrate for limiting the substrate in all directions.

As shown in fig. 4, the power interface 10 of this embodiment is externally connected with a 220V ac power supply, and a voltage conversion module connected to the output end of the power interface 10 is disposed in the base 3, wherein the voltage conversion module includes a first voltage conversion unit for converting ac power into 12V dc power and supplying power to the substrate, and a second voltage conversion unit for converting ac power into 5V dc power and supplying power to the voltmeter, and the output end of the power interface 10 is connected to the two voltage conversion units through a main power switch. A second power switch for controlling the substrate to be electrified is arranged between the first voltage conversion unit and the probe. The voltage conversion module of this example can be a commercial ac-to-dc converter or a voltage transformation module.

The testing principle and the wiring and connection relationship inside the base 3 of this example are shown in fig. 5 and 6. As shown in fig. 7, the voltmeter 1 of this embodiment has three connection pins, wherein the first pin is connected to the positive electrode of the output terminal of the second voltage conversion unit, the second pin is respectively connected to the negative electrode of the output terminal of the second voltage conversion unit and the negative electrode of the measurement terminal, and the third pin is connected to the positive electrode of the measurement terminal.

The operation mode of the embodiment is as follows:

1. the tool is connected with an AC 220V power supply through a power supply interface;

2. placing the substrate on a tooling acrylic insulating tray, and positioning the substrate by using 4 positioning columns;

3. and pulling down the push rod, pressing and fixing the substrate by using the acrylic pressing plate, and connecting a preset probe in the tool with the corresponding point position of the substrate at the moment. Pressing a power switch of the ship type on the right side, and obtaining DC 5V power supply by a voltmeter and displaying the power supply;

4. and then the left ship-shaped switch is pressed, the substrate obtains DC 12V power supply, and simultaneously the voltage dial instantly detects the voltage value on the corresponding point of the substrate.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a base plate voltage test frock which characterized in that: the device comprises a base and an insulating tray arranged on the base, wherein a probe electrically connected with a substrate voltage test point is arranged on the insulating tray, the device also comprises a voltmeter electrically connected with the probe and used for displaying an array of the substrate test point voltage, and the number of the voltmeter is the same as that of the test points and corresponds to that of the test points one by one.

2. The substrate voltage testing tool of claim 1, wherein: the test device also comprises a pressing plate which is arranged above the insulating tray and used for pressing the test substrate, and a driving rod which drives the pressing plate to move up and down.

3. The substrate voltage testing tool of claim 2, wherein: the driving rod is a push rod arranged above the pressing plate through a support, and the tail end of the push rod is fixedly connected with the pressing plate.

4. The substrate voltage testing tool of claim 2, wherein: the base is further provided with a power interface, a main power switch and a voltage conversion module, wherein the voltage conversion module comprises a first voltage conversion unit for supplying power to the substrate and a second voltage conversion unit for supplying power to the voltmeter, the power interface is externally connected with a power supply, and the output end of the power interface is connected with the two paths of voltage conversion units through the main power switch.

5. The substrate voltage testing tool of claim 4, wherein: and a second power switch for controlling the substrate to be electrified is also arranged between the first voltage conversion unit and the probe.

6. The substrate voltage testing tool of claim 3, wherein: the voltmeter is provided with three wiring pins, wherein the first pin is connected with the anode of the output end of the second voltage conversion unit, the second pin is respectively connected with the cathode of the output end of the second voltage conversion unit and the cathode of the measuring end, and the third pin is connected with the anode of the measuring end.

7. The substrate voltage testing tool according to any one of claims 1 to 5, characterized in that: and the insulating tray is provided with a positioning structure for positioning the substrate.

8. The substrate voltage testing tool of claim 7, wherein: the positioning structure is a plurality of positioning columns which are arranged corresponding to the substrate positioning holes.