CN217931895U

CN217931895U - Display screen withstand voltage testing device

Info

Publication number: CN217931895U
Application number: CN202221702336.9U
Authority: CN
Inventors: 董龙正; 张胜凯; 张建国; 庞双成
Original assignee: Chengdu Konka Electronics Co ltd
Current assignee: Chengdu Konka Electronics Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-29
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses a display screen pressure resistance testing device, include: the voltage-withstanding detection tool comprises a first test area and a second test area, an isolation area is arranged between the first test area and the second test area, and a first test socket and a second test socket are respectively arranged on the first test area and the second test area; the transmission device is provided with a first conductive module and a second conductive module, when the voltage-withstanding detection tool moves to a preset position, the first test area is contacted with the first conductive module, and the second test area is contacted with the second conductive module; the withstand voltage detector comprises a programmable power supply module, a signal acquisition conditioning module and a controller, wherein the high-voltage power supply output end of the programmable power supply module is electrically connected with the second conductive module, and the signal acquisition input end of the signal acquisition conditioning module is electrically connected with the first conductive module.

Description

Display screen withstand voltage testing device

Technical Field

The utility model relates to an equipment test technical field, concretely relates to display screen pressure resistance testing device.

Background

In the prior art, the manual line body testing procedure of the display screen voltage withstanding test is as follows: after conveying the display screen that will await measuring to withstand voltage test station, withstand voltage tester will await measuring on the display screen power cord inserts high-voltage socket, then receive the display screen USB mouth with the withstand voltage tester earth connection on, press the withstand voltage tester test button and test the display screen, after the test is accomplished, extract withstand voltage tester earth connection and display screen power cord to insert the display screen power cord and carry out the back end test on the portable electrical socket. However, because a part of the display screens use the iron back plate, when the grounding wire of the voltage-withstanding tester is not connected with the display screen USB port or is in poor contact with the display screen USB port, a worker presses the test button, the voltage-withstanding tester outputs high voltage, the working procedures of the workers at the voltage-withstanding test station are multiple, the operation speed is slow, and a production bottleneck is caused, so that the voltage-withstanding test device for the display screens has important significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a display screen withstand voltage testing arrangement for solve the problem of how to promote display screen withstand voltage test efficiency among the prior art.

In order to solve the technical problem, the utility model discloses a following scheme:

the utility model provides a display screen withstand voltage testing arrangement, withstand voltage detection device includes:

the voltage-withstanding detection tool comprises a first test area and a second test area, an isolation area is arranged between the first test area and the second test area, a first test socket and a second test socket are respectively installed on the first test area and the second test area, a USB interface of a display screen is connected with a test wire, a plug of the test wire is plugged on the first test socket, and a power line of the display screen is plugged on the second test socket;

the transmission device is provided with a first conductive module and a second conductive module, when the voltage-withstanding detection tool moves to a preset position, the first test area is contacted with the first conductive module, and the second test area is contacted with the second conductive module;

the withstand voltage detector comprises a programmable power supply module, a signal acquisition conditioning module and a controller, wherein the high-voltage power supply output end of the programmable power supply module is electrically connected with the second conductive module, and the signal acquisition input end of the signal acquisition conditioning module is electrically connected with the first conductive module.

Further, a support used for placing a display screen to be detected is arranged on the pressure resistance testing tool.

Furthermore, the first conductive module comprises a first base and three conductive wheels longitudinally arranged on the first base along the length direction of the first base.

Furthermore, the second conductive modules are arranged on the inner sides of the two guide rails of the conveying device respectively.

Furthermore, the second conductive module comprises a second base and four conductive wheels transversely arranged on the second base along the length direction of the second base.

The pressure-resistant detection tool is characterized by further comprising an in-place sensor and a blocking mechanism which are installed on the conveying device, wherein the in-place sensor and the blocking mechanism are respectively electrically connected with the controller, and when the in-place sensor senses that the pressure-resistant detection tool moves to a preset position, the controller controls the blocking mechanism to block the pressure-resistant detection tool.

Further, the blocking mechanism adopts a pneumatic telescopic structure.

The utility model discloses beneficial effect who has:

1. the utility model discloses a when withstand voltage detects the frock and removes to predetermineeing the position, first test area contacts with first electrically conductive module, and the electrically conductive module of second test area second contacts with the electrically conductive module of second, and the withstand voltage tester tests the display screen, can replace withstand voltage test station tester completely, reduces the human cost, promotes work efficiency.

Drawings

FIG. 1 is a schematic structural view of a pressure resistance detection tool;

FIG. 2 is a schematic structural view of a transfer device;

FIG. 3 is a control flowchart of the pressure resistance measuring instrument.

Description of reference numerals: 1. a pressure resistance detection tool; 101. a first test zone; 102. a second test zone; 103. an isolation region; 104. a first test socket; 105. a second test socket; 2. a conveying device; 3. a first conductive module; 301. a first base; 4. a second conductive module; 401. a second base; 5. a support; 6. a display screen; 7. a conductive wheel; 8. an in-place sensor; 9. a blocking mechanism.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The invention is explained in detail below with reference to the figures and with reference to exemplary embodiments:

as shown in fig. 1 and 2, a device for testing withstand voltage of a display screen 6 includes:

the voltage-withstanding detection tool 1 comprises a first test area 101 and a second test area 102, an isolation area 103 is arranged between the first test area 101 and the second test area 102, a first test socket 104 and a second test socket 105 are respectively mounted on the first test area 101 and the second test area 102, a USB interface of a display screen 6 is connected with a test wire, a plug of the test wire is plugged on the first test socket 104, and a power line of the display screen 6 is plugged on the second test socket 105;

the transmission device 2 is provided with a first conductive module 3 and a second conductive module 4, when the voltage-withstanding detection tool 1 moves to a preset position, the first test area 101 is in contact with the first conductive module 3, and the second test area 102 is in contact with the second conductive module 4; the first conductive pattern 3 and the second conductive pattern 4 may be arranged as follows: the first conductive module 3 comprises a first base 301 and three conductive wheels 7 longitudinally arranged on the first base 301 along the length direction of the first base 301, and the first conductive module 3 is arranged on the inner side of one of the guide rails of the conveying device 2. The number of the second conductive modules 4 is two, and the two conductive modules are respectively arranged on the inner sides of the two guide rails of the conveying device 2, and each second conductive module 4 comprises a second base 401 and four conductive wheels 7 transversely arranged on the second base 401 along the length direction of the second base 401.

The withstand voltage detector comprises a programmable power supply module, a signal acquisition conditioning module and a controller, wherein the high-voltage power supply output end of the programmable power supply module is electrically connected with the second conductive module 4, and the signal acquisition input end of the signal acquisition conditioning module is electrically connected with the first conductive module 3. In the prior art, a program-controlled power supply module consists of a program-controlled power supply and a high-voltage transformer, the output voltage of the program-controlled power supply can be boosted by the transformer under the control of a single chip microcomputer to obtain a set output voltage value, a signal acquisition and conditioning module comprises a sensor, a signal conditioning circuit and an overcurrent protection circuit, leakage current of a test loop enters the signal acquisition and conditioning circuit through the sensor, and I/V conversion is carried out on a leakage current signal in the signal acquisition and conditioning circuit to obtain a voltage signal meeting an A/D input range.

The main parameters of the withstand voltage tester during testing are the value of high voltage output by the high voltage transformer and the leakage current value of the test loop, when the test of the leakage current of the withstand voltage test system starts, the leakage current of the tested equipment passes through the current transformer, then the sampling current is converted into voltage through the I/V conversion circuit, corresponding A/D conversion and calculation are carried out in the single chip microcomputer, the leakage current value of the tested equipment under the set voltage condition is finally obtained, and the leakage current value is compared with the leakage current value specified by the safety standard, so that whether the withstand voltage test of the equipment is qualified or not can be tested.

In addition, be provided with on the withstand voltage test frock and be used for placing the support 5 that waits to detect display screen 6, still include to install inductor 8 and the barrier mechanism 9 that targets in place on conveyer 2, inductor 8 and the barrier mechanism 9 that targets in place are connected with the controller electricity respectively, and when inductor 8 that targets in place senses withstand voltage test frock 1 and removes to predetermineeing the position, the controller control barrier structure blocks withstand voltage test frock 1, wherein barrier mechanism 9 can adopt pneumatic extending structure.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, and such changes and modifications are to be considered as within the scope of the invention.

Claims

1. The utility model provides a display screen withstand voltage testing arrangement which characterized in that, withstand voltage testing arrangement includes:

the pressure-resistant detection tool (1) comprises a first test area (101) and a second test area (102), an isolation area (103) is arranged between the first test area (101) and the second test area (102), a first test socket (104) and a second test socket (105) are respectively installed on the first test area (101) and the second test area (102), a USB interface of a display screen (6) is connected with a test lead, a plug of the test lead is plugged on the first test socket (104), and a power line of the display screen (6) is plugged on the second test socket (105);

the transmission device (2) is provided with a first conductive module (3) and a second conductive module (4), when the withstand voltage detection tool (1) moves to a preset position, the first test area (101) is in contact with the first conductive module (3), and the second test area (102) is in contact with the second conductive module (4);

the withstand voltage detector comprises a programmable power supply module, a signal acquisition and conditioning module and a controller, wherein the high-voltage power supply output end of the programmable power supply module is electrically connected with the second conductive module (4), and the signal acquisition input end of the signal acquisition and conditioning module is electrically connected with the first conductive module (3).

2. The display screen withstand voltage testing device according to claim 1, characterized in that: and a support (5) for placing a display screen (6) to be detected is arranged on the pressure-resistant detection tool.

3. The display screen withstand voltage testing device according to claim 1, characterized in that: the first conductive module (3) comprises a first base (301) and three conductive wheels (7) longitudinally arranged on the first base (301) along the length direction of the first base (301).

4. The display screen withstand voltage testing device according to claim 1, characterized in that: the number of the second conductive modules (4) is two, and the two conductive modules are respectively arranged on the inner sides of the two guide rails of the conveying device (2).

5. The display screen withstand voltage testing device according to claim 4, characterized in that: the second conductive module (4) comprises a second base (401) and four conductive wheels (7) transversely arranged on the second base (401) along the length direction of the second base (401).

6. The display screen withstand voltage testing device according to claim 1, characterized in that: still including installing inductor (8) and the stop gear (9) of targetting in place on conveyer (2), inductor (8) and stop gear (9) of targetting in place are connected with the controller electricity respectively, work as when inductor (8) of targetting in place sense withstand voltage detection frock (1) and remove to predetermineeing the position, controller control stop gear (9) block withstand voltage detection frock (1).

7. The display screen withstand voltage testing device of claim 6, wherein: the blocking mechanism (9) adopts a pneumatic telescopic structure.