JPH02214385A - Board mounting device - Google Patents

Abstract

PURPOSE:To mount a large sized wiring board onto a CRT neck surely with simply constitution by inserting plural locking claws formed to the cover of a board holder to plural throughholes made to the wiring board, fitting a cathode ray tube neck to a socket and tightening a band wound on the outer periphery of a cylinder. CONSTITUTION:Plural locking claws 5A-5E formed to a holder 5 of a board holder 1 are inserted to plural throughholes 2A-2E made to a wiring board 2 to engage the board holder 1 to the wiring board 2. Then a CRT neck 7 is fitted to a rib 6 of the board holder 1 and fitted to the CRT socket 3 of the wiring board 2 and the band 8 wound on the outer periphery of the rib 6 is tightened. Moreover, the holder 5 of the board holder 1 is applied to the CRT socket 3 of the wiring board 2 to cover up to a high voltage resistor 4. Furthermore, no bolt nor adhesives is used at all and the claws 5A-5E are fitted and the band 8 is tightened. The wiring board 2 is fixed to the CRT neck 7 surely with simple work.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a substrate mounting device, and in particular to a cathode ray tube (CRT).
This is suitable for use when attaching a large wiring board to the neck portion.

B. Summary of the Invention The present invention provides a board mounting device in which a plurality of locking claws formed on a lid portion of a board holder that covers a cathode ray tube socket of a wiring board are inserted into a plurality of through holes drilled in the wiring board. By engaging the board holder with the wiring board, inserting the cathode ray tube neck part into the cylindrical part of the board holder and inserting it into the cathode ray tube socket, and tightening the band wrapped around the outer periphery of the cylindrical part, The wiring board can be fixed to the cathode ray tube neck via the board holder.

C. Conventional technology Conventionally, in order to reduce the size of display devices such as computers, cathode ray tubes (CRTs) have been used.
Some models have been proposed in which a large wiring board for signal processing is attached to the neck part.

A socket corresponding to the electrode pins of the CRT is attached to this large wiring board, and the electrode pins of the CRT are inserted into this socket, and an insulating adhesive made of, for example, silicone resin is applied to the socket and the neck of the CRT. By covering the large wiring board, the large wiring board is fixed to the neck of the CRT.

D Problems to be solved by the invention However, in this way, the insulating adhesive is
The method of fixing a large wiring board to the neck of a CRT by applying it to the neck has the problem of poor workability during manufacturing.

Furthermore, depending on the amount of the insulating adhesive applied, the large wiring board may not be sufficiently fixed, and it is impossible to avoid the possibility that the electrode pins of the CRT may be damaged by vibrations of the display device or the like.

For example, after removing a large wiring board during repair,
Even when reattaching it, it was necessary to perform the troublesome work of applying an insulating adhesive, and it was still unsatisfactory in terms of maintainability.

The present invention has been made in consideration of the above points, and it is an object of the present invention to propose a board mounting device that is capable of reliably mounting a large wiring board to a CRT neck portion with a simple configuration.

E Means for Solving the Problem In order to solve this problem, in the present invention, in a board mounting device for mounting a predetermined wiring board 2 on the cathode ray tube neck part 7, the cathode ray tube socket 3 of the wiring board 2 is covered. A lid portion 5, a cylindrical portion 6 set on the lid portion 5 and having an inner diameter approximately equal to the outer diameter of the cathode ray tube neck portion 7 and a predetermined length, and a plurality of through holes 2A to 2E drilled in the wiring board 2. A plurality of locking claws 5A to 5E that engage the lid part 5 with the wiring board 2 through the board holder l formed by integral molding of resin and the outer periphery of the cylindrical part 6 of the board holder 1 are wrapped around the board holder l formed by integral molding of resin. In addition, a band 8 for adjusting the inner diameter of the cylindrical portion 6 is provided.

A plurality of locking claws 5A~ formed on the lid portion 5 of the F-action substrate holder 1
5E into the plurality of through holes 2A to 2 formed in the wiring board 2 to engage the board holder 1 with the wiring board 2, and at the same time, insert the cathode ray tube neck part 7 into the cylindrical part 6 of the board holder 1. By inserting it into the cathode ray tube socket 3 of the wiring board 2 and further tightening the band 8 wrapped around the outer periphery of the cylindrical part 6, the wiring board 2 is securely connected to the cathode ray tube through the board holder 1. It can be fixed to the neck part 7.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 to 3, 1 indicates a board holder as a whole, which combines two rectangular lids that cover a CRT socket 3 mounted on a large wiring board 2 and a high voltage resistor 4 consisting of a variable resistor. A holder portion 5 consisting of a holder portion 5, and a rib portion 6 having a cylindrical shape and having a predetermined inner diameter, which is installed at a position corresponding to the CRT socket 3, are integrally molded from resin.

The inner diameter of the rib portion 6 is selected to be approximately equal to the outer diameter of the CRT neck portion 7.

A metal plate band 8 having a shape substantially equal to the outer circumferential shape and a predetermined width is wrapped around the outer periphery of the tip portion of the rib portion 6, and is formed by integral molding of resin on the tip portion of the rib portion 6. The band 8 is locked by the four protrusions 6A to 6C so as not to shift toward the CRT neck 7 side.

At the end of the band 8, first and second bent parts 8A and 8B are formed to face each other, and a screw 9 is inserted to tighten the band from the through hole formed in the first bent part 8A. However, the inner diameter of the tip portion of the rib portion 6 can be adjusted by screwing it into a screw hole drilled in the second bent portion 8B.

In addition, cutouts 6E and 6F of a predetermined shape are formed from the tip to the base of the rib portion 6, so that
CR'l: While inserting the neck part 7 into the rib part 6,
Insert the CRT electrode pin into the CRT socket 3, tighten the band by screwing in the screw 9, and then attach the neck part 7 to the board holder 1.
It is configured such that it can be fixed to the rib portion 6 of the.

Further, on the board 2 side of the holder part 5, five claws 5A to 5E, each having a locking part, are formed integrally with the board holder 1 by resin molding, and the board 2 corresponds to the claws 5A to 5E. By inserting the holder part 5 through the through holes 2A to 2E, the claws 5A to 5E engage with the substrate 2 through the through holes 2A to 2E. It is designed to be fixed.

In the case of this embodiment, a lid-shaped cover 10 corresponding to the holder part 5 covering the high voltage resistor 4 is provided at a position corresponding to the high voltage resistor 4 on the back side of the substrate 2. It is designed to prevent dust from entering.

For this reason, among the 505 claws 5A to 5E of the holder part, two claws 5D and 5E are connected to the through holes 2D and 2 of the substrate 2.
E, through hole 10D and IO made in this cover 10
E is selected to have a length that penetrates through the holder part 5.
And the cover 10 can be fixed to the substrate 2.

Further, a through hole of a predetermined shape is bored in the holder part 5 that covers the high voltage resistor 4, so that the operation knob 4A of the high voltage resistor 4 protrudes outside, and the board 2 is covered with the holder part 5. In this state, the high voltage resistor 4 can be adjusted.

In the above configuration, the substrate 2 can be fixed to the holder section 5 of the substrate holder 1 by inserting the claws 5A to 5E of the holder section 5 through the through holes 2A to 2E of the substrate 2, and
Insert the RT neck part 7 into the lip part 6 of the board holder 1, insert the electrode pins of the CRT into the CRT socket 3, and tighten the band by screwing in the screws 9. In this way, the substrate 2 can be securely fixed to the CRT neck portion 7 via the substrate holder 1.

According to the above configuration, the plurality of locking claws 5A to 5E formed in the holder part 5 of the board holder 1 are inserted into the plurality of through holes 2A to 2E drilled in the wiring board 2, and the board holder 1 is engaged with the wiring board 2, and the CRT neck part 7 is inserted into the lip part 6 of the board holder 1, inserted into the CRT socket 3 of the wiring board 2, and further wrapped around the outer periphery of the lip part 6. By tightening the band 8, the wiring board 2 can be reliably fixed to the CRT neck portion 7 via the board holder 1.

Further, according to the above-described configuration, the holder portion 5 of the substrate holder 1
By selecting the shape of the lid to cover not only the CRT socket 3 of the wiring board 2 but also the high voltage resistor 4, the wiring board 2 can be held more securely.
Even extremely large wiring boards can be securely fixed to the CRT neck portion 7.

Further, according to the above-mentioned configuration, the wiring board 2 can be fixed to the CRT neck part 7 by simply fitting the claws 5A to 5E and tightening the band 8 without using any bolts or adhesives. Therefore, the manufacturing process can be further simplified, and the ease of maintenance such as repair can be greatly improved.

In the above-described embodiments, the present invention is applied to a display device such as a computer, but the present invention is not limited to this, but can be widely applied to various image display devices using cathode ray tubes such as a television receiver. It is suitable for this purpose.

H Effects of the Invention As described above, according to the present invention, the plurality of locking claws formed on the lid of the board holder are inserted into the plurality of through holes drilled in the wiring board, and the board holder is attached to the wiring board. while engaging with
By inserting the cathode ray tube neck part into the cylindrical part of the board holder, inserting it into the cathode ray tube socket of the wiring board, and further tightening the band wrapped around the outer periphery of the cylindrical part, it can be easily inserted through the board holder. With this configuration, it is possible to realize a board mounting device that can reliably fix the wiring board to the neck portion of the cathode ray tube.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a board mounting device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a back view thereof.

Claims (1)

[Scope of Claims] A board mounting device for mounting a predetermined wiring board on a cathode ray tube neck part, comprising: a lid part that covers a cathode ray tube socket of the wiring board; A cylindrical portion having an inner diameter approximately equal to the diameter and a predetermined length, and a plurality of locking claws that engage the lid portion with the wiring board through a plurality of through holes drilled in the wiring board are made of resin. A board mounting device comprising: a board holder integrally formed; and a band wrapped around the outer periphery of the cylindrical part of the board holder to adjust the inner diameter of the cylindrical part.