CN210039589U

CN210039589U - Electric measuring device of liquid crystal display module

Info

Publication number: CN210039589U
Application number: CN201921031053.4U
Authority: CN
Inventors: 陶锋
Original assignee: Dongguan City Sanjie Digital Technology Co Ltd
Current assignee: Dongguan City Sanjie Digital Technology Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-02-07
Anticipated expiration: 2029-07-04

Abstract

An electric measuring device of a liquid crystal display module comprises: testboard, a plurality of connector and a plurality of hot-blast rifle, the testboard includes: the heat gun type heat detector comprises a base plate, a bearing seat, a tester and a support, wherein the bearing seat and the tester are positioned on the base plate, the support extends upwards from the base plate, a connector is fixed on the base plate, a heat gun is fixed on the support, the connector is electrically connected with the tester, the connector is opposite to the bearing seat in the horizontal direction, and the heat gun is opposite to the bearing seat in the vertical direction. The electric measuring device can locally heat the metal terminal of the liquid crystal display module, simulate the high-temperature working state and effectively detect the adverse conditions appearing at high temperature.

Description

Electric measuring device of liquid crystal display module

Technical Field

The utility model relates to an electricity connection testing arrangement especially relates to a liquid crystal display module's electricity measuring device.

Background

The liquid crystal display module is a screen and backlight lamp assembly, the display part of the liquid crystal television is a liquid crystal module, and other parts comprise a power supply circuit, a signal processing circuit and the like. Before the lcd module is mounted, it is usually necessary to test the electrical connection condition of the lcd module, and the most commonly used electrical testing device is an electrical testing device.

However, the current electric measuring devices on the market can only test the liquid crystal display module at normal temperature, and for products needing to work at high temperature, because the metal material of the input terminal of the liquid crystal display module and the glass material of the liquid crystal display have different thermal expansion, poor contact can be caused if the fastening is not good, the problems can not be effectively detected at normal temperature, and the hidden trouble that the defective products flow out exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is to above-mentioned condition, and in order to solve above-mentioned problem and provide a liquid crystal display module's electricity and survey device, electricity is surveyed the device and is included: testboard, a plurality of connector and a plurality of hot-blast rifle, the testboard includes: the heat gun type heat exchanger comprises a base plate, a bearing seat, a tester and a support, wherein the bearing seat and the tester are located on the base plate, the support extends upwards from the base plate, a connector is fixed on the base plate, a heat gun is fixed on the support, the connector is electrically connected with the tester, the connector and the bearing seat are right opposite in the horizontal direction, and the heat gun and the bearing seat are right opposite in the vertical direction.

Furthermore, a positioning opening is formed in the support, and the middle of the hot air gun is in interference fit with the positioning opening.

Further, the heat gun includes: the air inlet pipe, the heating rod and go out the tuber pipe, the upper end of heating rod with the air inlet pipe intercommunication, the lower extreme with go out the tuber pipe intercommunication, the heating rod with the locating hole forms interference fit.

Further, the heating rod has a holding part at the upper end and a limiting ring at the lower end, and the holding part and the limiting ring are protruded from the side surface of the heating rod.

Further, the connector includes: the translation rod is movably arranged on the track, the conductive block is electrically connected with the tester, one end of the translation rod is fixed with the conductive block, and the other end of the translation rod is connected with an air cylinder.

After the technical scheme is adopted, the utility model discloses an effect is: the electric measuring device with the structure can locally heat the metal terminal of the liquid crystal display module, simulate the high-temperature working state and effectively detect the bad conditions occurring at high temperature.

Drawings

Fig. 1 is a schematic view of an electrical measuring device according to the present invention;

fig. 2 is a schematic view of a test stand according to the present invention;

fig. 3 is a schematic view of a connector according to the present invention;

fig. 4 is a schematic view of a hot air gun according to the present invention.

Detailed Description

It is specifically noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

The technical solution of the present invention is further described below by way of examples:

the utility model provides a device is surveyed to electricity of liquid crystal display module assembly, as shown in FIG. 1, the device is surveyed to electricity includes: testboard 1, a plurality of connector 2 and a plurality of hot-blast rifle 3, connector 2 and hot-blast rifle 3 all are located testboard 1. When the electric measuring device works, the liquid crystal display modules 4 are placed on the test board 1, the connector 2 and the liquid crystal display modules 4 are right opposite along the horizontal direction, the hot air gun 3 and the liquid crystal display modules 4 are right opposite along the vertical direction, the connector 2 and the metal terminals of the liquid crystal display modules 4 form an electric connection, the hot air gun 3 blows hot air to the liquid crystal display modules 4, and the conduction condition of the metal terminals and the liquid crystal display glass under the condition of thermal expansion is tested.

As shown in fig. 2, the test stand 1 includes: the test device comprises a base plate 11, a bearing seat 12, a tester 13 and a support 14, wherein the bearing seat 12 and the tester 13 are positioned on the base plate 11, and the support 14 extends upwards from the base plate 11. The connector 2 is fixed on the substrate 1, the hot air gun 3 is fixed on the support 14, the connector 2 is electrically connected with the tester 13, the tester 13 is provided with a display screen, the connector 2 is opposite to the bearing seat 12 along the horizontal direction, and the hot air gun 3 is opposite to the bearing seat 12 along the vertical direction. In the process of electric connection test, the liquid crystal display module 4 is placed on the bearing seat 12, the connector 2 transmits the electric signal of the liquid crystal display module 4 to the tester 13, and the tester 13 displays the test result through the display screen. The testing principle of the tester 13 is the same as that of the existing electrical testing device, and is not described herein again.

Specifically, the bracket 14 is provided with a positioning hole 15, and the middle part of the heat gun 3 forms an interference fit with the positioning hole 15, so that the heat gun 33 is fixed on the bracket 14.

As shown in fig. 3, the connector 2 includes: the device comprises a conductive block 21, a translation rod 22 and a track 23, wherein the translation rod 22 is movably arranged on the track 23, the conductive block 21 is electrically connected with the tester 13, one end of the translation rod 22 is fixed with the conductive block 21, and the other end of the translation rod 22 is connected with an air cylinder (not shown in the figure). In this embodiment, the connector 2 is driven by the cylinder to realize the connection and disconnection operations with metal electronics, and compared with the traditional manual operation, the connection stability is stronger and the operation is more convenient.

As shown in fig. 4, the heat gun 3 includes: the air inlet pipe 31, the heating rod 32 and the air outlet pipe 33, the upper end of the heating rod 32 is communicated with the air inlet pipe 31, the lower end of the heating rod is communicated with the air outlet pipe 33, the air outlet pipe 33 is opposite to the bearing seat 12 along the vertical direction, the air outlet pipe 33 is located above the bearing seat 12, and the heating rod 32 and the positioning opening 15 form interference fit. The user can adjust the height of the hot air gun 3 by adjusting the matching position of the heating rod 32 and the positioning port 15, thereby controlling the temperature of the liquid crystal display module 4.

Specifically, the heating rod 32 has a grip portion 321 at an upper end thereof and a stopper 322 at a lower end thereof, and both the grip portion 321 and the stopper 322 protrude from a side surface of the heating rod 32. The user can hold the holding portion 321 of the heating rod 32 to adjust the position thereof, in addition, the holding portion 321 can be abutted against the upper end of the positioning port 15 to limit the lowest position of the heat gun, and the limiting ring 322 can be abutted against the lower end of the positioning port 15 to limit the highest position of the heat gun, so that the problem of overhigh or overlow temperature is avoided.

Therefore, the electric measuring device with the structure can locally heat the metal terminal of the liquid crystal display module, simulate the high-temperature working state and effectively detect the bad conditions occurring at high temperature.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. The utility model provides an electricity of liquid crystal display module assembly surveys device which characterized in that: the electrical measuring device comprises: testboard, a plurality of connector and a plurality of hot-blast rifle, the testboard includes: the heat gun type heat exchanger comprises a base plate, a bearing seat, a tester and a support, wherein the bearing seat and the tester are located on the base plate, the support extends upwards from the base plate, a connector is fixed on the base plate, a heat gun is fixed on the support, the connector is electrically connected with the tester, the connector and the bearing seat are right opposite in the horizontal direction, and the heat gun and the bearing seat are right opposite in the vertical direction.

2. The electrical measurement device of a liquid crystal display module of claim 1, wherein: the support is provided with a positioning opening, and the middle part of the hot air gun is in interference fit with the positioning opening.

3. The electrical measurement device of a liquid crystal display module of claim 2, wherein: the heat gun includes: the air inlet pipe, the heating rod and go out the tuber pipe, the upper end of heating rod with the air inlet pipe intercommunication, the lower extreme with go out the tuber pipe intercommunication, the heating rod with the locating hole forms interference fit.

4. An electrical measurement device of a liquid crystal display module according to claim 3, characterized in that: the heating rod is characterized in that the upper end of the heating rod is provided with a holding part, the lower end of the heating rod is provided with a limiting ring, and the holding part and the limiting ring are protruded from the side surface of the heating rod.

5. The electrical measurement device of a liquid crystal display module of claim 1, wherein: the connector includes: the translation rod is movably arranged on the track, the conductive block is electrically connected with the tester, one end of the translation rod is fixed with the conductive block, and the other end of the translation rod is connected with an air cylinder.