JPS62217168A - Electric inspection method - Google Patents

Abstract

PURPOSE:To facilitate the connection and disconnection of a connection terminal and to improve the efficiency of inspection operation by performing electric inspection while bringing a soldered part which projects on the surface of a sample into contact with a contact terminal energized by an elastic body. CONSTITUTION:Three rod 9 are inserted in a free elevation state into the upper support plate 8 of a terminal base 7 on the turntable 5 of a video inspection device 1 and the respective rods 9 are energized upward by springs 14. The display panel 2 of an automobile is set as the sample on a support base 6 and then respective soldered parts 20 on the reverse surface of a printed board 17 are pressed against the head parts 10 of the respective rods 9 to come into secure contact. Electricity is supplied to a display device 4 through an electric cord 13, the rods 9, and the soldered parts 20 ad a pilot lamp 15 illuminates when a pilot lamp 18, a resistance 19, etc., are connected to the printed board 17 as prescribed. The display panel 2 is photographed by a photographing device 3 to inspect whether the display device 4 is on or not and whether the display device 4 is fitted to the display panel or not.

Description

[Detailed description of the invention] (・Industrial application field) The present invention relates to a method for electrically testing a specimen.

(Prior Art) In general, when conducting an electrical inspection to determine whether or not electrical components are incorporated in the electrical circuit of a specimen according to regulations, whether or not they are connected according to regulations, etc., an electrical cord extending from the specimen is used. The inspector connects the power supply side connection terminal to the connection terminal of □ and conducts the desired electrical inspection.

(Problems to be Solved by the Invention) It takes a long time to connect and disconnect the connection terminals each time a sample is changed, resulting in extremely low work efficiency.

(Means for Solving the Problems) This invention has been made to solve the above problems, and its gist is to connect a soldering part protruding from the surface of a specimen to a contact terminal biased by an elastic body. An electrical inspection method is characterized in that the electrical inspection is carried out by contact.

(Function) Since it is only necessary to contact the soldered part of the specimen with the contact terminal, the efficiency of the inspection work is improved. Further, since the soldering portion and the contact terminal are pressed together by the elastic body, the connection is ensured.

(Example) .

Hereinafter, one embodiment of the present invention will be described based on the drawings of FIGS. 1.2.

FIG. 1 shows an embodiment in which the electrical inspection method according to the present invention is applied to a video inspection of a display panel of an automobile. This is to analyze whether the display device 4 and its electric parts (not shown) are attached to the display panel 2 as specified or not.

The video inspection apparatus 1 has a turntable 5, on which a support stand 6 and a terminal block 7 adjacent to the support stand 6 are fixed.

As shown in FIG. 2, three rods 9 are inserted through the upper support plate 8 of the terminal block 7 so as to be movable up and down. A head portion 10 as a contact terminal is formed at the upper end of each rod 9 which also projects upward from the support plate 8, and a head portion 10 as a contact terminal is formed at the lower end of each rod 9 which projects downward from the support plate 8. A male thread 11 is formed, and this male thread 11 has a lug 1.
12a and 12b are screwed together.

One end of an electric hood 13 is fixed between each of the above-mentioned oaks 12a and 12b, and the ground end of each electric cord 13 is connected to a terminal provided on the turntable 2. In addition, a terminal is also provided on the base (not shown) side that supports the turntable 2 (1), so that as the turntable 2 rotates, both terminals of the turntable 2 and the base are connected. There is.

Further, each rod 9 has, above the support plate 8,
A spring 14 (elastic body) is attached, and each spring 14 urges each rod 9 upward.

The display device 4 has a casing 15, and the casing 1
A translucent display board 16 is attached to the upper opening of 5,
A printed circuit board 17 having a predetermined circuit is attached to the lower opening. Electrical components such as an indicator light 18 and a resistor 19 are arranged inside the casing 15, and lead wires connecting these components are soldered to the lower surface of the printed circuit board 17 (the surface of the display panel 2). The soldering portion is indicated by the reference numeral 20 in the figure.

In the above-described configuration, the inspection procedure by the video inspection apparatus 1 will be explained.

The display panel 2 is placed on the support stand 6. At this time, each soldering portion 20 comes into contact with the head portion 1° of each rod 9, and is further lowered slightly against the elastic force of the spring 14 to be pressed against the head portion 10. Therefore, even if there is a difference in the protruding dimensions of each soldering part 20, each soldering part 2o and each head part 10 can be removed by making sure they come into contact with each other.

Next, the turntable 5 is rotated to position the display panel 2 below the photographing device 3. At this time, since both terminals of the turntable 2 and the base are connected, electricity is supplied to the display device 4 via the electric hood 13, the rod 9, and the soldering part 2o. When the indicator light 18, resistor 19, etc. are connected to the printed circuit board 17 as specified, the indicator light 15 lights up.

Then, the display panel 2 is photographed by the photographing device 3, and the obtained image is analyzed to check whether the display device t is lit and whether the display device 4 is attached to the display panel 2. do.

This invention is not limited to the above-mentioned embodiments, and various embodiments are possible.

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(-1-) It is also possible to perform an inspection by double-folding or a simple continuity test. Therefore, the inspection object may not have a display lighting function.

(Effects of the Invention) As described above, according to the present invention, it is only necessary to contact one contact terminal with the soldered portion of the specimen, so that the efficiency of inspection work is improved.

Further, since the soldering portion and the contact terminal are pressed together by the elastic body, the connection is ensured.

[Brief explanation of drawings]

The drawings in FIGS. 1 and 2 show one embodiment of the present invention, and FIG. 1 is a schematic front view of a video inspection device, and FIG.
The figure is an enlarged perspective view of the main part. 2... Specimen (display panel), 10... Contact terminal (head part), 14... Elastic body (spring), 20... Soldering part, 17... Sample surface (printed circuit board).

Claims (1)

[Claims] An electrical testing method characterized in that electrical testing is performed by bringing a soldered part protruding from the surface of a specimen into contact with a contact terminal biased by an elastic body.