CN212159010U

CN212159010U - Vacuum jig

Info

Publication number: CN212159010U
Application number: CN202020967662.7U
Authority: CN
Inventors: 陈栋明
Original assignee: Hefei Meiming Electronic Technology Co ltd
Current assignee: Hefei Meiming Electronic Technology Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-12-15
Anticipated expiration: 2030-06-01

Abstract

The utility model provides a vacuum jig, including ya keli bottom plate, lower aluminum plate, glass backplate, go up aluminum plate, current conducting plate, wiring board and locating plate, lower aluminum plate passes through the bolt and installs on the ya keli bottom plate, and has laid the air inlet duct on the ya keli bottom plate, and lower aluminum plate's inside is hollow out construction, and four inboard edges of lower aluminum plate fretwork part are equipped with the ventilation hole respectively, and wherein the inside ventilation hole of lower aluminum plate is located the gram force bottom plate directly over the air inlet duct, and the laminating of glass backplate is on the ya keli bottom plate, goes up the aluminum plate and passes through the bolt and be connected with lower aluminum plate. Through placing the LED display module who awaits measuring on the glass backplate, let in negative pressure so to the air inlet duct in can transmit the below to LED display module through the ventilation hole, avoided the influence of LED display module below dust to the test lighting process.

Description

Vacuum jig

Technical Field

The utility model relates to a LED test fixture technical field specifically is a vacuum fixture.

Background

The LED display module needs to be lighted before being used, and whether each region is in a lighting state is observed through lighting the LED display module in the testing process, and then whether the LED display module is intact is judged, the existing testing mode is that the LED display module is directly placed on a jig, and then whether the LED display module is directly observed, so that the condition that shadow exists in the display process caused by residual stains on the LED display module or on a glass backboard easily occurs, and further the testing of the LED display module is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum jig to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a vacuum jig, includes ya keli bottom plate, lower aluminum plate, glass backplate, goes up aluminum plate, current conducting plate, wiring board and locating plate, wherein:

aluminum plate passes through the bolt to be installed on the ya keli bottom plate down, and has laid the air inlet duct on the ya keli bottom plate, and aluminum plate's inside is hollow out construction down, and four inboard edges of lower aluminum plate fretwork part are equipped with the ventilation hole respectively, and wherein the inside ventilation hole of lower aluminum plate lies in the gram force bottom plate directly over the air inlet duct, the laminating of glass backplate is on the ya keli bottom plate, it passes through the bolt and is connected with lower aluminum plate to go up aluminum plate.

Preferably, the current-conducting plate passes through the reference column and sets up in the mounting groove on aluminum plate down, the wiring board passes through the locating plate to be installed on the current-conducting plate, and forms electric connection between wiring board and the current-conducting plate.

Preferably, be equipped with the sealing washer between ya keli bottom plate and the lower aluminum plate, and be equipped with the overhanging part of round in the inboard fretwork region of lower aluminum plate, and then press the glass backplate on ya keli bottom plate, and the upper half in the ventilation hole of lower aluminum plate is higher than the glass backplate.

Preferably, an air inlet is arranged at the center of the air inlet groove on the acrylic bottom plate.

Preferably, the top of the wiring board is provided with an interface for butting with the PFC interface, and the interface on the wiring board faces the inner side of the lower aluminum plate.

Preferably, the wiring terminal at the bottom of the conductive plate penetrates through the lower aluminum plate and the acrylic bottom plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a to await measuring LED display module places on the glass backplate, lets in the below that negative pressure can transmit to LED display module through the ventilation hole to the air inlet duct so, has avoided the influence of LED display module below dust to the test lighting process.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

fig. 2 is a top view of the acrylic bottom plate of the present invention;

fig. 3 is a three-dimensional schematic view of a middle and lower aluminum plate of the present invention;

FIG. 4 is a schematic view of portion A of FIG. 3;

fig. 5 is a three-dimensional schematic diagram of the middle conductive plate, the wiring board and the positioning plate of the present invention when they are engaged.

In the figure: 1 ya keli bottom plate, 2 aluminum plates down, 3 glass backplate, 4 aluminum plates on, 5 current conducting plates, 6 wiring boards, 7 locating plates, 11 air inlet ducts, 12 inlet ports, 21 ventilation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1 to 5, the present invention provides a technical solution:

the utility model provides a vacuum jig, includes acrylic bottom plate 1, lower aluminum plate 2, glass backplate 3, goes up aluminum plate 4, current conducting plate 5, wiring board 6 and locating plate 7, wherein:

the lower aluminum plate 2 is installed on the acrylic bottom plate 1 through bolts, the acrylic bottom plate 1 is provided with an air inlet groove 11, the center of the air inlet groove 11 on the acrylic bottom plate 1 is provided with an air inlet hole 12, and then negative air pressure is introduced into the acrylic bottom plate 1 through the air inlet hole 12 and can flow along the air inlet groove 11, the interior of the lower aluminum plate 2 is of a hollow structure, wherein the hollow shape is rectangular, four inner sides of the hollow part of the lower aluminum plate 2 are respectively provided with a vent hole 21, each inner side is provided with at least one vent hole 21, the vent hole 21 inside the lower aluminum plate 2 is positioned right above the air inlet groove 11 in the acrylic bottom plate 1, the negative air pressure entering the air inlet groove 11 can be upwards transmitted through the vent holes 21, the glass back plate 3 is attached on the acrylic bottom plate 1, a sealing ring is arranged between the acrylic bottom plate 1 and the lower aluminum plate 2 to avoid air leakage, and a circle part is arranged, the glass back plate 3 is pressed on the acrylic bottom plate 1, the upper half parts of the vent holes 21 in the lower aluminum plate 2 are higher than the glass back plate 3, air flow in the vent holes 21 can adsorb stains on the glass back plate 3, and the upper aluminum plate 4 is connected with the lower aluminum plate 2 through bolts;

the current conducting plate 5 sets up in the mounting groove on aluminum plate 2 down through the reference column, the terminal of the bottom of current conducting plate 5 runs through aluminum plate 2 and ya keli bottom plate 1 down, and then be convenient for be connected of current conducting plate 5 and external power, wiring board 6 passes through locating plate 7 and installs on current conducting plate 5, wherein locating plate 7 sets up in the mounting groove on wiring board 6, and locating plate 7 passes through the bolt and is connected with current conducting plate 5, form electric connection between wiring board 6 and the current conducting plate 5, and then realize the conduction of electric current, the top of wiring board 6 is equipped with the interface with the butt joint of PFC interface, and aluminum plate 2's inboard under the interface orientation.

The utility model discloses a theory of operation does: the LED display module to be tested is placed on the glass back plate 3, negative air pressure is introduced into the air inlet groove 11 through a negative pressure pump communicated with the air inlet hole 12 at the moment, the negative air pressure flows into the air inlet groove 21 along the air inlet groove 11, the upper half part of the air inlet hole 21 is higher than the glass back plate 3, therefore, impurities at the bottom of the glass back plate 3 and the LED display module to be tested can be adsorbed away by the air inlet hole 21, a PFC (power factor correction) interface of the LED display module to be tested is inserted into a corresponding interface of the wiring plate 6 at the moment, the LED display module to be tested is lightened for testing, and the impurities at the bottom of the glass back plate 3 and the LED display module to be tested are adsorbed away, so that shadow cannot occur in the lightening process.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vacuum jig, includes ya keli bottom plate (1), lower aluminum plate (2), glass backplate (3), goes up aluminum plate (4), current conducting plate (5), wiring board (6) and locating plate (7), its characterized in that:

aluminum plate (2) pass through the bolt to be installed on inferior gram force bottom plate (1) down, and has laid air inlet duct (11) on inferior gram force bottom plate (1), and the inside of lower aluminum plate (2) is hollow out construction, and down four inboard sides of aluminum plate (2) fretwork part are equipped with ventilation hole (21) respectively, wherein the inside ventilation hole (21) of lower aluminum plate (2) is located air inlet duct (11) directly over in gram force bottom plate (1), glass backplate (3) laminating is on inferior gram force bottom plate (1), it is connected with lower aluminum plate (2) through the bolt to go up aluminum plate (4).

2. The vacuum jig of claim 1, wherein: the current conducting plate (5) is arranged in a mounting groove in the lower aluminum plate (2) through the positioning column, the wiring board (6) is arranged on the current conducting plate (5) through the positioning plate (7), and the wiring board (6) is electrically connected with the current conducting plate (5).

3. The vacuum jig of claim 1, wherein: be equipped with the sealing washer between inferior gram force bottom plate (1) and lower aluminum plate (2), and be equipped with the overhanging part of round in the inboard fretwork area of lower aluminum plate (2), and then press glass backplate (3) on inferior gram force bottom plate (1), and the upper half of ventilation hole (21) in lower aluminum plate (2) is higher than glass backplate (3).

4. The vacuum jig of claim 1, wherein: an air inlet hole (12) is formed in the center of the air inlet groove (11) on the acrylic bottom plate (1).

5. The vacuum jig of claim 2, wherein: the top of the wiring board (6) is provided with an interface which is butted with the PFC interface, and the interface on the wiring board (6) faces the inner side of the lower aluminum plate (2).

6. The vacuum jig of claim 2, wherein: the wiring terminal at the bottom of the conductive plate (5) penetrates through the lower aluminum plate (2) and the acrylic bottom plate (1).