JP2002281417A - Ground processing structure for crt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ground processing structure for a CRT, which can increase work efficiency because a connector does not have to be attached to a ground wire and is excellent in workability by eliminating work errors of forgetting connector insertion. SOLUTION: A metal ground plate 10 is provided from a rib 7 that is provided at a lower corner part on an inner side of the front wall of the front cabinet 2 of a video system 1 and where an ear shape part 5 of a CRT 3 is attached up to a rail part 9 where a board 8 arranged at the bottom 2a in the front cabinet 2 is inserted and which is made of a conductor, in the rail part 9, a long groove 2b in the almost reverse T shape of a cross section is formed on the bottom 2a of the front cabinet 2 to insert the rail part 9, and the ground wire 6 on the surface of the CRT 3 is directly grounded to the board 8 through the ground plate 10 and the rail part 9 made of the conductor while inserting a long projecting part 9a of the lower part of the rail part 9 in an almost reverse T shape into the long groove 2b in the almost reverse T shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding structure for a CRT in which a ground wire provided on a surface of a CRT in a front cabinet of a video apparatus is grounded to a substrate provided on a bottom surface of the front cabinet. About.

[0002]

2. Description of the Related Art Conventionally, a grounding structure of a CRT of this type is configured such that a lead wire is connected to a ground wire provided on the surface of the CRT, and a connector attached to the lead wire is inserted into a substrate to be grounded. I was However,
In this case, since the connector is mounted, there is a problem that the work of inserting the connector into the board is troublesome, the workability is poor, and there is a possibility that the work mistake of forgetting to pierce the connector may occur. .

Further, Japanese Patent Application Laid-Open No. 9-186948 describes a CRT ground processing device for a monitor. This is, as shown in FIGS.
10, a CRT lug 122 screwed to the front cover 110, and a ground wire 123 connected to the lug.
, A guide bracket 130 fixed to the front cover 110 so as to be connected to the ear piece 122 for the CRT, a mold frame 140 screwed to be supported by the guide bracket 130, and the mold frame A shield plate 150 having a projecting piece 151 fixed so as to be connected to the guide bracket 130 by a screw 143 fixing the 140 is provided.
However, this has a problem that the structure is large and complicated, and the assembling work is troublesome.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, eliminates the necessity of attaching a connector to a ground wire, improves work efficiency, and eliminates a work error in forgetting to insert a connector. It is an object of the present invention to provide a ground processing structure for a CRT which is excellent in workability.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problems, and the invention as defined in claim 1 is for grounding a CRT mounted in a front cabinet of an image apparatus. In the structure, provided at the lower corner inside the front wall of the front cabinet,
A metal ground plate is provided from the rib to which the ear-shaped portion at the corner of the CRT is attached to the one side rail portion on which the substrate disposed on the bottom surface in the front cabinet is fitted, and the one side rail portion is formed of a conductor. The rail portion made of the conductor is formed with a long groove having a substantially inverted T-shaped cross section on the bottom surface of the front cabinet so as to fit the rail portion made of the conductor.
A substantially inverted T-shaped long protrusion provided at a lower portion of the rail portion made of the conductor is fitted into the long groove of the shape, and the ground plate and the ground plate provided from the ground wire provided on the surface of the CRT are formed. It is characterized in that the substrate is directly grounded via the rail portion made of the conductor.

According to a second aspect of the present invention, in a grounding structure of a CRT to be mounted in a front cabinet of an image apparatus, the CRT is provided at a lower corner inside a front wall of the front cabinet, and has a lug at a corner of the CRT. A metal ground plate is provided from the rib to which the part is attached to the one side rail part in which the substrate disposed on the bottom surface in the front cabinet is fitted, and the one side rail part is formed of a conductor, and from this conductor The rail portion is attached to the bottom surface of the front cabinet, and is directly grounded from the ground wire provided on the surface of the CRT to the substrate via the rail portion including the ground plate and the conductor. It is characterized by doing. The invention according to claim 3 is characterized in that the ground plate is obtained by extending a ground wire provided on the surface of the CRT.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a grounding structure of a CRT according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a grounding structure of a CRT according to a first embodiment of the present invention.

As shown in FIG. 1, the ground processing structure of the CRT according to the first embodiment is provided on a surface of a CRT 3 mounted in a front cabinet 2 of a video apparatus 1 such as a television or a televideo on the upper right side in FIG. The ground wire 6 extends from the ear-shaped portion 4 at the corner to the ear-shaped portion 5 at the lower left corner.
And the ear-shaped part 5 on the lower left side of the CRT 3
A metal ground plate 10 is provided from a rib 7 at a lower left corner of the front cabinet 2 to which the base plate 8 is attached to a rail 9 on one side on which a substrate 8 disposed on the bottom surface 2a in the front cabinet 2 is fitted. . Further, the rail portion 9 on one side is formed of a conductor, and the rail portion 9 made of this conductor is a long groove having a substantially inverted T-shaped cross section for fitting the rail portion 9 made of a conductor into the bottom surface 2a of the front cabinet 2. 2b is formed, and a substantially inverted T-shaped long protrusion 9a provided below the rail portion 9 made of a conductor is fitted into the substantially inverted T-shaped long groove 2b.

The ground wire 6 provided on the surface of the CRT 3 is directly grounded to the substrate 8 via a ground plate 10 and a rail 9 made of a conductor. Therefore, it is not necessary to attach a connector to the ground wire 6, so that the work efficiency can be improved, and a work mistake in forgetting to insert the connector can be eliminated, so that the workability is excellent and the structure is simple.

FIG. 2 is a rear view showing the grounding structure of the CRT according to the second embodiment. CRT of the second embodiment
In the grounding structure of the first embodiment, the ground plate 10 in the above-described first embodiment is not used, and instead, the CR
The spring portion 6a of the ground wire 6 disposed on the surface of the T3 extends from the lug portion 5 at the lower left corner of the CRT 3 to the rail portion 9 made of a conductor, and the tip is connected to the rail portion 9. are doing. The ground is directly grounded to the substrate 8 through a spring portion 6a extending from the ground wire 6 provided on the surface of the CRT 3 and a rail portion 9 made of a conductor.

Therefore, also in the second embodiment, it is not necessary to attach a connector to the ground wire 6, so that work efficiency can be improved, and a work error in forgetting to connect a connector can be eliminated, resulting in excellent workability. In addition, since the ground plate 10 used in the first embodiment can be deleted, the number of parts can be reduced, the structure is simple, and the cost can be reduced. The rail 9 made of a conductor is connected to the bottom surface 2 of the front cabinet 2.
The structure to be mounted on the front cabinet 2 is not limited to the structure described in the above embodiment, and other mounting structures such as, for example, screwing the rail portion 9 made of a conductor to the bottom surface 2a of the front cabinet 2 can be applied. It is.

[0012]

As described above, according to the first aspect of the present invention, in a grounding structure of a CRT mounted in a front cabinet of a video apparatus, the CRT is provided at a lower corner inside a front wall of the front cabinet, CRT
A metal ground plate is provided from the rib to which the ears at the corners are attached to the rail on one side on which the board disposed on the bottom surface in the front cabinet is fitted, and the rail on one side is formed of a conductor. In the rail portion made of the conductor, a long groove having a substantially inverted T-shaped cross section is formed on the bottom surface of the front cabinet so as to fit the rail portion formed of the conductor. A substantially inverted T-shaped long protrusion provided at the lower portion of the rail portion is configured to be fitted therein, and the ground wire disposed on the surface of the CRT is connected to the substrate via a rail portion formed of a ground plate and a conductor. Since the device is directly grounded, the following effects are obtained.

That is, it is not necessary to attach a connector to the ground wire, so that the working efficiency can be improved, the work mistake of forgetting to connect the connector can be eliminated, the workability is excellent, and the structure is simple.

According to a second aspect of the present invention, there is provided a grounding structure for a CRT mounted in a front cabinet of a video apparatus, wherein the CRT is provided in a lower corner inside a front wall of the front cabinet, and has a lug at a corner of the CRT. A metal ground plate is provided from the rib to which the board is attached to the rail on one side into which the board disposed on the bottom surface in the front cabinet is fitted, and the rail on one side is formed of a conductor, and the rail made of this conductor The part is attached to the bottom of the front cabinet, and is grounded directly from the ground wire provided on the surface of the CRT to the board via the rail part composed of the ground plate and the conductor. To play.
That is, it is not necessary to attach a connector to the ground wire, so that the work efficiency can be improved, and a work mistake in forgetting to insert the connector can be eliminated, resulting in excellent workability.

According to the third aspect of the present invention, since the ground plate is obtained by extending the ground wire provided on the surface of the CRT, the ground plate can be eliminated, the number of parts can be reduced, and the structure can be simplified. Thus, costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a grounding structure of a CRT according to a first embodiment of the present invention.

FIG. 2 is a rear view illustrating a grounding structure of a CRT according to a second embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a conventional CRT ground processing device of a monitor.

FIG. 4 is a schematic sectional view of the ground processing apparatus shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image apparatus 2 Front cabinet 2a Bottom surface 2b Approximately inverted T-shaped long groove 3 CRT 5 Ear-shaped part at the lower left corner 6 Ground wire 6a Spring portion 7 Rib 8 Substrate 9 Conductor rail 9a Approximately inverted T-shaped long protrusion Part 10 Ground plate

Claims (3)

[Claims] 1. A ground processing structure for a CRT mounted in a front cabinet of a video apparatus, wherein a front end of the CRT is provided from a rib provided at a lower corner inside a front wall of the front cabinet and to which an ear portion at a corner of the CRT is mounted. A metal ground plate is provided up to a rail portion on one side where a board disposed on the bottom surface in the cabinet is fitted, and the rail portion on one side is formed of a conductor, and the rail portion formed of the conductor is provided on the front side. A long groove having a substantially inverted T-shaped cross section is formed on the bottom surface of the cabinet so as to fit the rail made of the conductor, and the long groove formed in the substantially inverted T-shape is provided below the rail made of the conductor. A substantially inverted T-shaped long protrusion is configured to be fitted therein, and the ground wire is disposed on a surface of the CRT. A grounding structure for a CRT, wherein the ground is directly grounded to the substrate via a rail portion formed of a metal plate and the conductor. 2. A ground processing structure for a CRT mounted in a front cabinet of an image apparatus, wherein a front end of the CRT is provided at a lower corner inside a front wall of the front cabinet. A metal ground plate is provided up to a rail portion on one side where a board disposed on the bottom surface in the cabinet is fitted, and the rail portion on one side is formed of a conductor, and the rail portion formed of the conductor is provided on the front side. A CRT which is attached to the bottom of a cabinet and is directly grounded from a ground wire disposed on the surface of the CRT to the substrate via a rail portion comprising the ground plate and the conductor. Ground treatment structure. 3. The CRT ground processing structure according to claim 1, wherein the ground plate is formed by extending a ground wire disposed on the surface of the CRT.