JP2532473Y2 - Chassis structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a chassis structure of an electronic device such as a monitor display device.

[Summary of Invention] In the chassis structure of the present invention, a communication hole through which a connector terminal of a lead wire can be inserted is formed in a partition plate such as a shield case, and both sides of the partition plate can be electrically connected. Also, after the connector terminal passes through the communication hole, the unnecessary part of the communication hole is closed by another part that can open and close the communication hole to maintain the strength or shielding effect of the partition plate. To make it possible.

2. Description of the Related Art For example, in a computer display device or a radar display device, a shield case is provided around a CRT, for example, in order to prevent leaked electromagnetic waves from entering from external devices. In such a case, it is necessary to electrically connect an electric circuit inside the shield case to an external board or the like without lowering the shield effect.

Further, if a partition plate is required between the electric circuit parts other than the shield case for some reason, means for electrically connecting both sides of the partition plate is required.

Usually, in such a case, a communication hole is provided in the partition, and a lead wire is inserted to connect the circuit parts on both sides of the partition, but at this time, the size of the communication hole affects the strength of the partition, If the partition is a shield case, it also affects the shield effect.

For this reason, conventionally, as shown in FIG. 4, a notch 1a large enough to allow only the lead wire 2 to be inserted but not the connector portion 3 is provided in the partition body 1, and after the lead wire 2 is fitted thereinto. By attaching another partition member 4 to block an unnecessary portion of the notch 1a, the strength and the shielding effect are maintained.

[Problems to be Solved by the Invention] However, such a structure is not preferable because the number of parts, the number of assembling steps, and the manufacturing cost are increased due to the necessity of the partition body 4 for maintaining strength and shielding effect.

Further, when connecting the lead wire or when it is desired to remove the lead wire for repair or the like, it is necessary to attach and remove the partition 4.
There is a problem that work becomes very complicated.

[Means for Solving the Problems] The present invention has been made in view of such a problem. While allowing the electric circuit portions on both sides to be electrically connectable, a component to be provided on one side of the partition body and having a plate-like surface,
An object of the present invention is to provide a chassis structure in which a part of a communication hole can be opened and closed on one side of a partition body.

[Operation] Even if the communication hole is large enough to allow the connector terminal to be inserted,
Other parts attached so that a part of the communication hole can be opened and closed by sliding or rotating movement can block unnecessary parts after inserting the connector terminal, and fully open the communication hole to connect the connector terminal and lead wire. Can be easily removed.

[Embodiment] FIG. 1 shows an embodiment of the present invention, which is a chassis structure for electrically connecting electronic circuit units inside and outside a shield case formed around a CRT of a monitor display device, for example.

10 is a shield case, 10a is a T-shaped communication hole formed in the shield case 10, 11 is a lead wire, 12 is a connector terminal, 13 is an electronic component board outside the shield case, and 14 is an aluminum plate. Heat dissipation mechanism (heat sink) of electronic circuit part, 14a is heat sink 14 and shield case 10
This is the mounting mechanism. The entire appearance of the shield case 10 with the substrate 13 and the heat sink 14 attached is as shown in FIG. 2, for example.

As shown in FIG. 1, a lead wire 11 and a connector terminal 12 connect an electronic circuit portion in a shield case 10 and an electronic circuit portion formed on a substrate 13 through a communication hole 10a. Since the communication hole 10a has a size that allows the connector terminal 12 to be inserted therein, the lead wire 11 together with the connector terminal 12 can be drawn out of the shield case 10 and guided on the board 13 during connection work.

Further, in this embodiment, the heat sink 14 is joined to the shield case 10 by a screw N inserted into the elongated hole 14b in the mounting mechanism 14a as shown in FIG.
Therefore, if the screws N, N are slightly loosened, the heat sink 14 can be slid from the position shown by the solid line in FIG. 3 to the position shown by the dashed line. That is, a predetermined portion of the communication hole 10a can be closed by the heat sink 14 as needed.

Therefore, in this embodiment, after the connector terminal 12 is guided from the communication hole 10a, the heat sink 14 is fixed at the position shown by the dashed line in FIG. When it is desired to remove the lead wire 12 and the lead wire 11, the screws N, N are loosened again and the heat sink 14 is moved to the position indicated by the solid line in FIG. 3, so that the connector terminal 12 can be inserted through the communication hole. Can be removed.

By configuring in this way as a chassis structure,
The workability at the time of manufacturing and repair is greatly improved, and since the communication hole is opened and closed by using necessary parts such as the heat sink 14, there is no need for an extra part for closing unnecessary parts of the communication hole. . Of course, the unnecessary portion of the communication hole is normally closed with the heat sink 14 or the like, so that the strength and the shielding effect are maintained.

The component for opening and closing the communication hole 10a may be rotatably attached. The component is not limited to the heat sink, and may be any component having a flat surface that can cover a predetermined portion of the communication hole 10a.

Further, the slidable mounting means includes a screw N and a long hole.
It is not limited to 14b. Further, the shape of the communication hole may not be T-shaped.

[Effects of the Invention] As described above, in the chassis structure of the present invention, a communication hole through which a connector terminal of a lead wire can be inserted is formed in a partition body, and necessary parts such as a heat sink can open and close a part of the communication hole. By being attached as
Eliminating the need for special auxiliary parts for maintaining the shielding effect and strength of the partition body, and improving the workability when connecting or removing both sides of the partition body or inside and outside electric circuit parts with lead wires. There is an effect that it can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of an embodiment of the present invention, FIG. 2 is a perspective view showing an appearance of the embodiment, FIG. FIG. 3 is an explanatory diagram of a lead wire insertion method. 10 is a shield case, 10a is a communication hole, 11 is a lead wire, 12
Denotes a connector terminal, 13 denotes a board, and 14 denotes a heat sink.

Claims (1)

(57) [Scope of request for utility model registration] 1. A lead for forming a communication hole large enough to allow a connector terminal with a lead wire to pass therethrough in a partition plate having an electrically shielding effect, and for passing electric circuit portions on both sides of the partition plate through the connection hole. While electrically connected by a wire and a connector terminal, a plate-like component having a shielding effect provided on one side of the electric circuit portion is slidably attached to the partition plate, and is inserted into the communication hole. A chassis structure characterized in that most of the chassis except for the lead wire can be closed.