JPS6231984Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cathode ray tube socket used for attachment to an electron gun of a cathode ray tube in a color television receiver.

For conventional cathode ray tube sockets of this type,
The contacts were positioned and housed in a housing consisting of a socket body made of insulating material and a lid. However, such a structure has the disadvantage that the number of parts increases, making assembly troublesome and increasing costs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cathode ray tube socket that can reduce the number of parts, be easily assembled, and reduce costs.

In the cathode ray tube socket according to the present invention, contact accommodating grooves are provided radially on the surface of a socket body made of an insulating material, and each of the contact accommodating grooves has a contact consisting of a contact body and a contact leg. The contact legs are arranged in a ring shape and are fitted in such a way that the contact legs are arranged in a radial manner, and an arcuate ground plate accommodating groove is provided on the back surface of the socket main body, and each of the contact legs is arranged in a ring shape. A ground plate having a spark electrode portion is fixedly provided opposite to the contact leg portion, and each portion of each contact leg portion and each spark electrode portion are opposed to each other on the socket body to form a spark gap. The present invention is characterized in that a communication hole is provided for communicating between the intermediate portion of each of the contact housing grooves and the ground plate housing groove.

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 8. The cathode ray tube socket of this embodiment has a high voltage spark electrode holding portion 1 in a part of the circumference.
The socket body 2 has a ring-shaped socket body 2 made of an insulating material, and contact receiving grooves 3 are provided radially on the surface of the socket body. Each contact housing groove 3 has a contact body housing groove 3A.
and a contact leg accommodating groove 3B, the contact body accommodating grooves 3A are arranged in a ring shape, and the contact leg accommodating grooves 3B are arranged radially. In addition, each contact leg accommodation groove 3
In the middle of B, first fixed edge insertion groove portions 4 are formed adjacent to the contact body housing groove 3A, and second fixed edge insertion groove portions 5 are formed adjacent thereto. A contact 6 is inserted and fixed in each contact housing groove 3, respectively. Each contact 6 consists of a cylindrical contact body 6A and a thin plate-like contact leg 6B. The contact leg 6B has a first fixed edge 6C protruding in correspondence with the first fixed edge insertion groove 4, and a second fixed edge 6D in correspondence with the second fixed edge insertion groove 5. It is installed protrudingly.
The contact leg portion 6B is bent such that the portion where the first fixing edge 6C is provided is inclined with respect to the contact body portion 6A, and the portion where the second fixing edge 6D is provided is bent so as to be inclined with respect to the contact body portion 6A. The next part is bent in a direction perpendicular to the contact body 6A, and the tip next to it is bent in a direction parallel to the contact body 6A.
It is bent in a direction parallel to A. In such a contact 6, the contact body portion 6A is housed in the contact body housing groove 3A, and the contact leg portion 6B is housed in the contact leg housing groove 3B. In this state, the first fixed edge 6C is bitten into the inner wall of the first fixed edge insertion groove 4 and is locked, and the second fixed edge 6D is bitted into the inner wall of the second fixed edge insertion groove 5. The contacts 6 are fixed by being locked and locked.

An arcuate earth plate receiving groove 7 is provided on the back surface of the socket body 2. An arcuate earth plate 8 is in contact with the bottom surface of the groove 7. Fixing holes 8A are drilled at predetermined intervals in the surface of this earth plate 8, and protrusions 9 protruding from the bottom of the groove 7 pass through these holes 8A, and the heads of the protrusions 9 are heated and crushed. As a result, the ground plate 8 is fixed by increasing the diameter of the head. Spark electrode portions 8B are provided protruding from the outer periphery of the ground plate 8 in correspondence with the respective contact leg portions 6B. In the socket main body 2, each part of each contact leg part 6B (the part having the second fixed edge 6D) and each spark electrode part 8B are arranged opposite to each other to form a spark gap 1.
A communication hole 11 is formed to communicate the middle portion of each contact housing groove (the portion housing the second fixed edge 6D) with the ground plate housing groove 7 so as to form a respective contact housing groove 7. These communication holes 11 are closed by being crossed by each contact leg 6B, and in this state, the back surface of each contact leg 6B is opposed to the spark electrode 8B of the ground plate 8 as the other spark electrode.

A part of the high voltage contact 12 is fitted into one contact receiving groove 3 of the socket body 2 corresponding to the high voltage spark electrode holding part 1 side. This high-voltage contact 12 consists of a contact main body 12A and a contact leg 12B. The contact main body 12A is fitted into the contact housing groove 3, and the contact leg 12B is guided toward the high-voltage spark electrode holding part 1, and the high-voltage spark Together with the electrode 13, a high voltage spark gap 14 is formed. This high-voltage spark gap 14 is housed in an insulating case 15 placed on the high-voltage spark electrode holder 1.
isolated from others.

In such a cathode ray tube socket, the back surface of the socket body 2 is brought into contact with the printed circuit board 16, and the entrance side of the ground plate housing groove 7 is closed, thereby preventing the intrusion of dust and the like.

As explained above, the cathode ray tube socket according to the present invention has contact receiving grooves formed radially on the surface of the socket body, contacts are fitted into these grooves, and a ground plate is arranged in an arc shape on the back surface of the socket body. A housing groove is formed and a ground plate is fixed in the groove, and the earth plate housing groove is arranged so that each spark electrode portion provided on the ground plate and the corresponding leg portion of each contact form a spark gap. Since the structure is such that the socket body is provided with a communication hole that communicates between the contact body and a part of each contact housing groove, there is no need to attach a cover to the contact body, which reduces the number of parts and facilitates assembly. , it is possible to reduce costs.

[Brief explanation of the drawing]

The drawings show an embodiment of the cathode ray tube socket according to the present invention, in which FIG. 1 is a plan view of the socket, FIG. 2 is a vertical sectional view of the socket, and FIG. 3 is a bottom view of the socket. FIG. 4 is an enlarged vertical sectional view of a part of the socket, FIG. 5 is an enlarged plan view of a part of the socket, and FIGS. 6 to 8 are front and plan views of contacts used in the socket. and a right side view. 2...Socket body, 3...Contact accommodation groove, 3A...Contact body accommodation groove, 3B...
Contact leg accommodation groove, 4...First fixed edge insertion groove, 5...Second fixed edge insertion groove, 6
...Contact, 6A...Contact body, 6
B...Contact leg portions 6, 6C...First fixing edge, 6D...Second fixing edge, 7...Earth plate accommodation groove, 8...Earth plate, 8A...Fixing hole,
8B...Spark electrode part, 9...Protrusion, 10...
Spark gap, 11...Communication hole.

Claims (1)

[Scope of utility model registration request] Contact accommodating grooves are provided radially on the surface of a socket body made of an insulating material, and in each of the contact accommodating grooves, a contact consisting of a contact body and a contact leg is arranged in a ring shape. The legs are fitted in a radial arrangement, and an arcuate ground plate accommodating groove is provided on the back surface of the socket body, and a ground plate accommodating groove is provided in the ground plate accommodating groove corresponding to each of the contact legs. A ground plate having a spark electrode portion is fixedly installed in the socket body, and a ground plate is provided in each of the contact receiving grooves in such a manner that each part of each contact leg portion and each of the spark electrode portions face each other to form a spark gap. 1. A cathode ray tube socket, characterized in that communication holes are provided for communicating between an intermediate portion and the ground plate housing groove.