CN213210244U

CN213210244U - Detection probe assembly

Info

Publication number: CN213210244U
Application number: CN202022763431.7U
Authority: CN
Inventors: 金准基
Original assignee: LG Display Optoelectronics Technology China Co Ltd
Current assignee: LG Display Optoelectronics Technology China Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-05-14
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a detect probe subassembly, including pick-up plate, guide duct and probe, wherein, be provided with the air cavity in the pick-up plate, be provided with the air intake that communicates with air supply equipment on the pick-up plate, the lower surface of pick-up plate is provided with the air outlet, and the guide duct setting is at the lower surface of pick-up plate, and air outlet and the inside intercommunication of guide duct, the one end of probe is passed the guide duct and is connected with the pick-up plate, and the other end is. Through establishing an air guide pipe at the probe overcoat, after the probe detects, the air guide pipe is carried gas supply equipment for the gas direction probe of air cavity, and the foreign matter on probe surface can be blown off to gas, prevents effectively that the foreign matter from piling up on the surface of probe, promotes and detects the precision, in addition, does not need the manual work to clear up the probe, has reduced the operation degree of difficulty, prevents effectively that the probe from warping.

Description

Detection probe assembly

Technical Field

The utility model relates to a display device detects technical field, especially relates to a detect probe subassembly.

Background

Tft (thin Film transistor) is an abbreviation of thin Film transistor. The TFT type display screen is mainstream display equipment on various notebook computers and desktop computers, and each liquid crystal pixel point on the display screen is driven by a thin film transistor integrated behind the pixel point, so the TFT type display screen is also an active matrix liquid crystal display equipment, the TFT type display has the advantages of high responsivity, high brightness, high contrast and the like, and the display effect of the TFT type display screen is close to that of the CRT type display.

Before the display panel of the TFT type display screen is assembled, a point screen test is needed to be carried out, and the point screen test is used for testing whether each pixel point on the display panel can be normally lightened. As shown in fig. 1 and 2, in the dot screen test, a probe 1 ' is generally used for detection, the probe 1 ' is fixed on a detection plate 2 ', the probe 1 ' frequently contacts a display panel (not shown), a foreign substance 3 ' (shown in fig. 2) is easily deposited on the surface of the probe 1 ', and the presence of the foreign substance 3 ' affects the accuracy of the test result. At present, the foreign matter 3 ' on the surface of the probe 1 ' is generally removed manually, but the manual removal of the foreign matter 3 ' is not only complicated, but also easily deforms the probe 1 ' (as shown in fig. 3), and the deformed probe 3 ' cannot accurately perform the detection work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the detection probe assembly can automatically remove foreign matters on the probe and improve the accuracy of a detection result.

In order to achieve the purpose, the utility model adopts the following technical proposal:

there is provided a test probe assembly comprising:

the air supply device comprises a detection plate, an air cavity, an air inlet and an air outlet, wherein the detection plate is internally provided with the air cavity;

the air guide pipe is arranged on the lower surface of the detection plate, and the air outlet is communicated with the inside of the air guide pipe;

and one end of the probe penetrates through the air guide pipe to be connected with the detection plate, and the other end of the probe is positioned outside the air guide pipe.

As a preferable scheme of the detection probe assembly, the air guide pipe is detachably connected with the detection plate.

As a preferable scheme of the detection probe assembly, a mounting groove is concavely formed in the lower surface of the detection plate, one end of the air guide pipe is inserted into the mounting groove, and the air outlet is formed in the bottom of the mounting groove.

As a preferred scheme of the detection probe assembly, the air guide pipe is clamped with the mounting groove through a clamping mechanism; or the like, or, alternatively,

the outer side wall of the air guide pipe is provided with external threads, the wall of the mounting groove is provided with internal threads, and the air guide pipe is screwed in the mounting groove; or the like, or, alternatively,

the air guide pipe comprises a pipe body, a circle of mounting plate is annularly arranged on the outer wall of the pipe body, the mounting plate and the two ends of the pipe body are spaced, the pipe body, close to one side of the detection plate, of the mounting plate is inserted into the mounting groove, and the mounting plate is connected with the lower surface of the detection plate through a screw or an adhesive layer.

As a preferable scheme of the detection probe assembly, a sealing gasket is arranged between the bottom of the mounting groove and the end face of the air guide pipe.

As a preferable scheme of the detection probe assembly, the air guide pipe comprises a pipe body and a mounting plate, the mounting plate is fixed at one end of the pipe body, a through hole communicated with the inside of the pipe body is formed in the center of the mounting plate, and the mounting plate is connected with the lower surface of the detection plate through a screw or an adhesive layer.

As a preferable scheme of the detection probe assembly, the air guide pipe is fixedly connected with the detection plate; or the like, or, alternatively,

the air guide pipe and the detection plate are integrally manufactured and formed.

As a preferable scheme of the detection probe assembly, a first included angle is formed between a part of the probe located in the air guide pipe and the detection plate, a second included angle is formed between the inner wall of the air guide pipe and the detection plate, and the first included angle is equal to the second included angle.

As a preferable scheme of the detection probe assembly, the air outlet is provided with a plurality of air outlets, and the plurality of air outlets are arranged around the probe.

As a preferable scheme of the detection probe assembly, the air outlet is tapered, the air outlet has a first end and a second end opposite to the first end, the first end is communicated with the air cavity, the second end is communicated with the inside of the air guide tube, and the size of the second end is smaller than that of the first end.

The utility model has the advantages that: through establishing an air guide pipe at the probe overcoat, after the probe detects, the air guide pipe is carried gas supply equipment for the gas direction probe of air cavity, and the foreign matter on probe surface can be blown off to gas, prevents effectively that the foreign matter from piling up on the surface of probe, promotes and detects the precision, in addition, does not need the manual work to clear up the probe, has reduced the operation degree of difficulty, prevents effectively that the probe from warping.

Drawings

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

Fig. 1 is a schematic view showing a structure of a conventional probe for detection (when a foreign substance is not adhered to the probe).

Fig. 2 is a schematic view showing a structure of a conventional probe for detection (when a foreign substance is stuck to the probe).

Fig. 3 is a schematic diagram illustrating a state after a conventional probe is manually cleaned.

Fig. 4 is a schematic structural diagram of a detection probe assembly according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a detection probe assembly according to an embodiment of the present invention.

Fig. 6 is an exploded view of a probing probe assembly according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of a test probe assembly according to another embodiment of the present invention.

Fig. 8 is an exploded view of a test probe assembly according to another embodiment of the present invention.

Fig. 9 is a schematic cross-sectional view of a test probe assembly according to yet another embodiment of the present invention.

Fig. 10 is an exploded view of a test probe assembly according to yet another embodiment of the present invention.

In fig. 1 to 3:

1', a probe; 2', detecting plate; 3', foreign matter.

In fig. 4 to 10:

1. detecting a plate; 11. an air cavity; 12. an air inlet; 13. an air outlet; 14. mounting grooves; 2. an air guide pipe; 21. a tube body; 22. mounting a plate; 3. and (3) a probe.

Detailed Description

The advantages and features of the present invention and the methods of accomplishing the same will become apparent with reference to the following detailed description of the embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and the embodiments are provided only to accomplish the disclosure of the present invention and to enable those skilled in the art to sufficiently understand the scope of the present invention, and the present invention is limited only by the scope of the claims. Like reference numerals denote like constituent elements throughout the specification.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 4 and 5, the utility model discloses detection probe subassembly of embodiment includes pick-up plate 1, guide duct 2 and probe 3, wherein, be provided with air cavity 11 in the pick-up plate 1, be provided with air intake 12 with air supply equipment (not shown on the picture) intercommunication on the pick-up plate 1, the lower surface of pick-up plate 1 is provided with air outlet 13, guide duct 2 sets up the lower surface at pick-up plate 1, air outlet 13 and the inside intercommunication of guide duct 2, guide duct 2 is passed to probe 3's one end and is connected with pick-up plate 1, the other end is located outside guide duct 2, probe 3 is located the outside one end of guide duct 2 and waits to detect the panel contact, in order to carry. Through establishing an guide duct 2 at 3 overcoat of probe, after probe 3 detects, guide duct 2 carries gas supply equipment to the gas direction probe 3 of air cavity 11, and the foreign matter on 3 surfaces of probe can be blown off to gas, prevents effectively that the foreign matter from piling up on the surface of probe 3, promotes and detects the precision, in addition, does not need the manual work to clear up probe 3, has reduced the operation degree of difficulty, prevents effectively that probe 3 from warping.

In this embodiment, the gas supplied by the gas supply device is compressed gas, and the compressed gas has a high speed, so as to ensure that the foreign matters on the surface of the probe 3 are completely blown off.

In one embodiment, the air duct 2 is detachably connected with the detection plate 1. Through connecting guide duct 2 and pick-up plate 1 can dismantle, can reduce the manufacturing degree of difficulty of pick-up plate 1 and guide duct 2, can also reduce the equipment degree of difficulty of probe 3 and pick-up plate 1.

In the present embodiment, as shown in fig. 6, a mounting groove 14 is concavely provided on the lower surface of the detection plate 1, one end of the air guide tube 2 is inserted into the mounting groove 14, and the air outlet 13 is opened at the bottom of the mounting groove 14. By arranging the mounting groove 14, the mounting difficulty of the air guide pipe 2 can be reduced, and the mounting groove 14 can also be used for positioning the mounting position of the air guide pipe 2, so that the air guide pipe 2 can be accurately mounted at the specified position of the detection plate 1.

Further, the air duct 2 is clamped to the mounting groove 14 by a clamping mechanism (not shown). Through setting up buckle mechanism, can be fast with guide duct 2 chucking in mounting groove 14, the dismantlement of guide duct 2 is also very convenient simultaneously.

In other embodiments, the air guide tube 2 is not limited to be connected to the mounting groove 14 by a fastening mechanism, and a threaded structure may be provided to fix the air guide tube 2 in the mounting groove 14, for example, an outer side wall of the air guide tube 2 is provided with an external thread, a wall of the mounting groove 14 is provided with an internal thread, and the air guide tube 2 is screwed into the mounting groove 14.

In addition to the snap mechanism and the thread structure, other structures may be further provided to connect the air guide tube 2 and the detection plate 1, as shown in fig. 7 and 8, in the illustrated embodiment, the air guide tube 2 includes a tube body 21, a circle of mounting plate 22 is annularly provided on an outer wall of the tube body 21, the mounting plate 22 is spaced from both ends of the tube body 21, the tube body 21 on a side of the mounting plate 22 close to the detection plate 1 is inserted into the mounting groove 14, and the mounting plate 22 is connected to the lower surface of the detection plate 1 through a screw or an adhesive layer.

In order to improve the sealing performance of the connecting position of the air guide pipe 2 and the detection plate 1, a sealing gasket (not shown in the figure) is arranged between the bottom of the mounting groove 14 and the end surface of the air guide pipe 2. In this embodiment, sealed pad is rubber pad or silica gel pad, and rubber pad or silica gel pad have elasticity, and is sealed effectual.

The air guide duct 2 may be directly attached to the lower surface of the detection plate 1 without providing the mounting groove 14 in the detection plate 1, as shown in fig. 9 and 10, the mounting plate 22 is fixed to one end of the tube body 21, a through hole communicating with the inside of the tube body 21 is formed in the center of the mounting plate 22, and the mounting plate 22 is connected to the lower surface of the detection plate 1 by a screw or an adhesive layer.

In the present embodiment, a seal gasket is provided between the mounting plate 22 and the lower surface of the detection plate 1.

The air guide pipe 2 is not limited to be detachably connected with the detection plate 1, and the air guide pipe 2 can be fixedly connected with the detection plate 1; or the air guide pipe 2 and the detection plate 1 are integrally manufactured and molded. The design can reduce the number of parts and parts, and the sealing problem of the joint of the air guide pipe 2 and the detection plate 1 does not need to be considered.

In an embodiment, as shown in fig. 5, a first included angle is formed between a portion of the probe 3 located in the air guide tube 2 and the detection plate 1, a second included angle is formed between an inner wall of the air guide tube 2 and the detection plate 1, and the first included angle is equal to the second included angle. Generally, the probe 3 may be arranged to form a certain included angle with the detection plate 1 according to the detection requirement, so that the inner wall of the air guide pipe 2 is arranged to have the same inclination angle as the probe 3, so that all positions of the probe 3 can be ensured to be blown by wind, and any foreign matters on the surface of the probe 3 can be removed.

In one embodiment, the air outlet 13 is provided in a plurality, and the plurality of air outlets 13 are arranged around the probe 3. Surround air outlet 13 that probe 3 arranged, can form the clearance of enclose to probe 3, increase the clearance effect.

In this embodiment, the outlet 13 is a straight hole.

In other embodiments, the outlet 13 is tapered, and the outlet 13 has a first end and a second end opposite to the first end, the first end is communicated with the air cavity 11, the second end is communicated with the inside of the air guide duct 2, and the size of the second end is smaller than that of the first end. The conical air outlet 13 can increase the speed of the air entering the air guide pipe 2, and the cleaning effect is increased.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but may be manufactured in various forms, and those skilled in the art will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the invention. It is therefore to be understood that the above described embodiments are illustrative and not restrictive in all respects.

Claims

1. A test probe assembly, comprising:

2. The test probe assembly of claim 1, wherein the air guide tube is removably attached to the test plate.

3. The detection probe assembly as recited in claim 2, wherein the lower surface of the detection plate is recessed with a mounting groove, one end of the air duct is inserted into the mounting groove, and the air outlet is disposed at a bottom of the mounting groove.

4. The test probe assembly of claim 3, wherein the air guide tube is clamped to the mounting slot by a clamping mechanism; or the like, or, alternatively,

5. The test probe assembly of claim 3 wherein a gasket is disposed between the groove bottom of the mounting groove and the end surface of the air guide tube.

6. The detection probe assembly as claimed in claim 2, wherein the air duct comprises a duct body and a mounting plate, the mounting plate is fixed to one end of the duct body, a through hole communicated with the inside of the duct body is formed in the center of the mounting plate, and the mounting plate is connected to the lower surface of the detection plate through a screw or an adhesive layer.

7. The test probe assembly of claim 1, wherein the air guide tube is fixedly attached to the test plate; or the like, or, alternatively,

8. The test probe assembly as claimed in any one of claims 1 to 7, wherein the portion of the probe within the duct is disposed at a first angle to the test plate, and the inner wall of the duct is disposed at a second angle to the test plate, the first angle being equal to the second angle.

9. The test probe assembly of any one of claims 1 to 7, wherein the vent is provided in a plurality, the plurality of vents being arranged around the probe.

10. The test probe assembly of any one of claims 1 to 7, wherein the vent is tapered, the vent having a first end and a second end opposite the first end, the first end being in communication with the air cavity, the second end being in communication with an interior of the air guide duct, the second end being smaller in size than the first end.