CN204964934U - Lighting tool - Google Patents

Abstract

The utility model provides a lighting tool, lighting tool includes the tool base, is located the probe structure of tool base top, the probe structure includes the metal sheet, is located the support of metal sheet top and running through the metal sheet with a plurality of probe pipes of support, probe guan zhongjun has plugged in a probe, be provided with tree fork probe on the probe, the spring structure is set to some of probe, the spring structure is located the top of tree fork probe, metal sheet ground connection when lighting tool is in not operating condition, tree fork probe with the metal sheet contact. The utility model provides a lighting tool can effectively reduce electrostatic discharge's emergence and measure the convenience.

Description

Lighting fixture

technical field

The utility model relates to a lighting fixture, in particular to an antistatic and easy-to-measure lighting fixture.

Background technique

Existing flat-panel displays, such as liquid crystal displays (Liquid Crystal Display, LCD) display panels, need to be tested for lighting after the production is completed. The test signal is provided to the display panel through the lighting fixture, and the display panel will display different pictures according to the input test signal. Through the display effect of different pictures, it is possible to judge the defect of the display panel. When the display panel is defective, it is necessary to analyze the display panel. During the analysis process, it is also necessary to use the lighting fixture to perform a lighting test on the display panel, that is, to confirm by loading the test signal through the lighting fixture. The built-in probes of the lighting fixture are mainly used to test various display panels. During the test, the probes are in contact with the corresponding pins of the display panel to provide test signals to the display panel.

Currently, electrostatic discharge (Electro-Static Discharge, ESD) has become a hazard to electronic products and equipment, causing dysfunction and even damage to electronic products and equipment. Static electricity is also likely to be generated on the probes of the lighting fixture, and electrostatic discharge occurs, and it is very easy to cause open circuit or short circuit of the grid line or data line on the display panel during the lighting test. In addition, since each probe is only connected to one probe connection line, it is not easy to distinguish the function of each probe connection line. For the GIA (GateInArray, that is, the gate driver is integrated on the array substrate) type display panel, the correlation During the design verification test (DesignVerificationTest, DVT) of the waveform of the signal, it is necessary to repeat the needle sticking test, which is time-consuming and laborious, and brings inconvenience to the test.

Utility model content

The purpose of the utility model includes providing a lighting fixture, which can reduce the occurrence of electrostatic discharge and facilitate testing, thereby solving the problems of electrostatic discharge and inconvenient testing in the prior art.

Specifically, an embodiment of the present utility model provides a lighting fixture, the lighting fixture includes a fixture base, a probe structure located above the fixture base, the probe structure includes a metal plate, located on the The bracket above the metal plate and a plurality of probe tubes passing through the metal plate and the bracket, a probe is inserted in each of the probe tubes, a tree fork probe is arranged on the probe, and the probe A part of the needle is set as a spring structure, and the spring structure is located above the tree fork probe, and the metal plate is grounded. When the lighting fixture is in a non-working state, the tree fork probe and the metal plate board contact.

Preferably, the probe tube is further provided with a draw slot, the draw slot accommodates the tree-fork probe, and the opening direction of the draw-in slot is consistent with the extension direction of the tree-fork probe.

Preferably, the spring structure is located between the bracket and the metal plate.

Preferably, n holes are provided on the metal plate, wherein n is a natural number greater than 1, the holes correspond to the probe tubes one by one, and one probe tube passes through one hole.

Preferably, the length of the tree fork probe is greater than the radius of the hole.

Preferably, the included angle between the tree branch probe and the probe is less than or equal to 90 degrees.

Preferably, the metal plate is fixed to the bottom of the bracket by screws.

Preferably, the upper end of the probe is also provided with a probe connection line, the probe connection line includes a first connection line and a second connection line, and the first connection line and the second connection line are both connected to at the upper end of the probe.

Preferably, a trigger switch is provided on the lower surface of the bracket, and a power switch is provided on the upper surface of the jig base, and the trigger switch and the power switch are on the same vertical plane.

Preferably, the length of the trigger switch is less than the length of the probe tube.

Since the probe structure of the lighting fixture provided by the embodiment of the present invention can release the static electricity retained on the probe through the contact between the tree fork probe and the grounded metal plate, the occurrence of electrostatic discharge can be reduced. Moreover, the lighting fixture has a simple structure, can continuously perform lighting detection, and improves work efficiency.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is a schematic structural diagram of a lighting fixture provided by an embodiment of the present invention.

FIG. 2 is a partially enlarged structural schematic diagram of the lighting fixture shown in FIG. 1 .

Fig. 3a is a schematic diagram of the state of a probe of the lighting fixture shown in Fig. 1 before testing;

Fig. 3b is a schematic diagram of a state of a probe of the lighting fixture shown in Fig. 1 during testing;

FIG. 3 c is a schematic diagram of a probe of the lighting fixture shown in FIG. 1 after testing.

detailed description

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the lighting fixture proposed according to the utility model and its specific implementation methods, methods and steps will be described below in conjunction with the accompanying drawings and preferred embodiments. , structure, feature and effect, detailed description is as follows.

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, the technical means and effects of the utility model to achieve the predetermined purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the utility model. new restrictions.

Please refer to FIG. 1 and FIG. 2 together, wherein FIG. 1 is a schematic structural diagram of a lighting fixture provided by an embodiment of the present invention, and FIG. 2 is a partially enlarged structural schematic diagram of the lighting fixture shown in FIG. 1 . As shown in FIGS. 1 and 2 , the lighting fixture includes a fixture base 10 and a probe structure 20 located above the fixture base 10 . A power switch 111 is disposed on the upper surface of the jig base 10 . The probe structure 20 includes a metal plate 21 , a bracket 23 above the metal plate 21 , and a plurality of probe tubes 22 passing through the metal plate 21 and the bracket 23 . Preferably, the bracket 23 is made of plastic. The metal plate 21 is grounded, and the metal plate 21 is fixed below the bracket 23 by screws 211. The metal plate 21 is provided with n holes 212, wherein n is a natural number and greater than 1. The holes 212 correspond to the probe tubes 22 one by one. , a probe tube 22 passes through a hole 212 . The lower surface of the support 23 is provided with a trigger switch 231, which is on the same vertical plane as the power switch 111. Pass the lighting fixture and the panel to be tested to enter the detection state. In this embodiment, the length of the trigger switch 231 is less than the length of the probe tube 22 .

Please refer to FIG. 2 again. As shown in FIG. 2, each probe tube 22 is provided with a slot 222, and each probe tube 22 is inserted with a probe 24, and each probe 24 is provided with a Tree fork probe 242 (please refer to Figs. 3a-3c together), the card slot 222 accommodates the tree fork probe 242, the opening direction of the card slot 222 is consistent with the extension direction of the tree fork probe 242, the tree fork probe 242 can move up and down in the slot 222 , that is to say, the slot 222 is provided for the tree fork probe 242 . Preferably, the length of the tree fork probe 242 is greater than the radius of the hole 212 on the metal plate 21, and the angle between the tree fork probe 242 and the probe 24 is less than or equal to 90 degrees. When the lighting fixture is in a non-working state, The tree fork probe 242 is in contact with the metal plate 21 . In this embodiment, a part of the probe 24 is configured as a spring structure 244 , and the spring structure 244 is located above the tree fork probe 242 .

The bracket 23 is also provided with a plug 224, the plug 224 is embedded in the upper surface of the bracket 23 and connected with the upper end of the probe tube 22, meanwhile, the probe 24 runs through the plug 224, and the upper end of the probe 24 is also connected There is a probe connecting wire 226 , and the probe connecting wire 226 includes a first connecting wire 2262 and a second connecting wire 2264 , both of which are connected to the upper end of the probe 24 . Wherein, the first connection line 2262 is used to provide corresponding signals to the probe 24 connected to the first connection line 2262 , and the second connection line 2264 is used to indicate the function of the first connection line 2262 .

Please refer to Fig. 3a, Fig. 3b and Fig. 3c together, wherein, Fig. 3a is a schematic diagram of the status of a probe of the lighting fixture shown in Fig. A schematic diagram of the state of the probe in the needle insertion. FIG. 3c is a schematic diagram of the state of a probe of the lighting fixture shown in FIG. 1 after the needle is inserted. As shown in Figure 3a, Figure 3b and Figure 3c, the tree fork probe 242 on the probe 24 can pass through the metal plate 21 through the hole 212 on the metal plate 21, and the probe 24 is located between the metal plate 21 and the bracket 23 A spring structure 244 is provided at the position. Before the test, no pressure is applied, the probe 24 does not contact the panel 30, and the tree fork probe 242 contacts the metal plate 21; during the test, because the bracket 23 and the metal plate 21 are fixed together by the screw 211, after applying pressure, the bracket 23 and the metal plate 21 move down as a whole, so that the probe 24 moves down and contacts the panel 30. Since the probe 24 is in contact with the panel 30, the probe 24 is subjected to the reaction force of the panel 30, causing the spring structure 244 to be compressed and deformed. The tree fork probe 242 is separated from the metal plate 21. At the same time, please refer to FIG. 1, the trigger switch 231 moves down and contacts the power switch 111, and the power is turned on for testing; after the test, the pressure is removed, and the bracket 23 and the metal The board 21 moves up as a whole, so that the probe 24 moves up and separates from the panel 30, the spring structure 244 returns to its original state, and the tree fork probe 242 contacts the metal plate 21. At the same time, please refer to FIG. 1, the trigger switch 231 moves up and The power switch 111 is separated, the power is turned off, and the test is completed.

Wherein, in the testing process, the contact between the probe 24 and the panel 30 will generate static electricity, and the static electricity will stay on the probe 24. After the test is over, the probe 24 moves up and separates from the panel, and the tree fork probe 242 contacts the metal plate 21. Since the metal plate 21 is grounded, the static electricity accumulated on the probe 24 can be fully released through the tree fork probe 242 and the metal plate 21, thereby reducing the occurrence of electrostatic discharge. Moreover, the lighting fixture has a simple structure, can continuously perform lighting detection, and improves work efficiency. In addition, since the second connection line 2264 indicates the function of the first connection line 2262, for a GIA (GateInArray, that is, the gate driver is integrated on the array substrate) type display panel, the design verification test (DesignVerificationTest) of the waveform of the relevant signal is carried out. , DVT), these second connection lines 2264 can be used to distinguish the type of the test signal, without repeated needle sticking test, further improving work efficiency.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any skilled person who is familiar with the profession can use the technology disclosed above without departing from the scope of the technical solution of the present utility model. Some changes or modifications are made in the content, and any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a lighting jig, it is characterized in that, described lighting jig comprises jig base, be positioned at the probe structure above described jig base, described probe structure comprises sheet metal, be positioned at the support above described sheet metal and run through multiple probe tubes of described sheet metal and described support, a probe is all inserted with in described probe tube, described probe is provided with tree fork probe, a part for described probe is arranged to spring structure, described spring structure is positioned at the top of described tree fork probe, described sheet metal ground connection, when described lighting jig is in non-duty, described tree fork probe contacts with described sheet metal.

2. lighting jig as claimed in claim 1, it is characterized in that, described probe tube is also provided with draw-in groove, and described draw-in groove holds described tree and pitches probe, and the opening direction of described draw-in groove is with described to set the bearing of trend pitching probe consistent.

3. lighting jig as claimed in claim 1, it is characterized in that, described spring structure is between described support and described sheet metal.

4. lighting jig as claimed in claim 1, it is characterized in that, described sheet metal is provided with n hole, wherein, n is natural number and is greater than 1, described hole and described probe tube one_to_one corresponding, and a probe tube is through a hole.

5. lighting jig as claimed in claim 4, is characterized in that, the length of described tree fork probe is greater than the radius of described hole.

6. lighting jig as claimed in claim 1, is characterized in that, the angle of described tree fork probe and described probe is less than or equal to 90 degree.

7. lighting jig as claimed in claim 1, it is characterized in that, described sheet metal is screwed the bottom in described support.

8. lighting jig as claimed in claim 1, it is characterized in that, the upper end of described probe is also provided with probe connecting line, and described probe connecting line comprises the first connecting line and the second connecting line, and described first connecting line and described second connecting line are all connected to the upper end of described probe.

9. lighting jig as claimed in claim 1, it is characterized in that, the lower surface of described support is also provided with trigger switch, and the upper surface of described jig base is provided with power switch, and described trigger switch and power switch are on same vertical plane.

10. lighting jig as claimed in claim 9, it is characterized in that, the length of described trigger switch is less than the length of described probe tube.