JPH0443962Y2 - - Google Patents

Description

[Detailed Description of the Invention] 1. Field of Industrial Application The present invention relates to a CRT anode terminal housing that covers the anode terminal and insulates it from the outside in a CRT, particularly a small CRT used in an electronic viewfinder.

2. Prior Art Currently, portable video cameras are becoming smaller and lighter, and electronic viewfinders are also required to be smaller and lighter. For this reason
CRTs are also becoming smaller, and CRTs of 1 inch or less are now being used. these
A high-quality screen is required because the screen is magnified using a CRT lens. It is a lightweight, compact CRT with a high-quality screen that satisfies these requirements, with the anode terminal taken out from between the panel and the funnel.
CRTs are being supplied to the market.

Conventionally, in this type of CRT, a housing made of an insulating material (hereinafter referred to as an anode terminal housing) that covers the connection between the anode terminal and the high voltage supply lead wire is attached to the CRT with adhesive. Further, the screen frame is generally attached to the exterior part as a separate body.

3 Problems to be solved by the present invention A lot of man-hours and skill were required to attach the anode terminal housing to the CRT using adhesive.
In addition, it was difficult to obtain sufficient strength and the quality was unstable. This invention secures the anode terminal housing firmly without using adhesives, and at the same time integrates the screen frame, which was conventionally provided on the exterior of the electronic viewfinder, with the anode terminal housing, making it inexpensive and safe. high, with a screen frame
This was devised to supply CRTs to the market.

4. Means for Solving the Problem As a means of attaching the anode terminal housing to the CRT without adhesion, the anode terminal housing is provided with a panel holding member and a funnel holding member formed in a shape and size such that it can be accommodated within the panel holding member. The panel and funnel are sealed using the panel holding member and the funnel holding member with the CRT and the anode terminal sandwiched therebetween, and the panel and the funnel are bonded together using a crown attachment or the like.
Install the funnel and anode terminal into the CRT anode terminal housing. The panel holding member has a window that serves as a screen frame and holds down the panel part of the CRT, and the funnel holding member holds down the funnel part of the CRT. The anode terminal is drawn out into a cavity formed by the panel pressing member and the funnel pressing member, and the anode terminal is connected to the high voltage supply lead wire within this cavity.

5 Embodiment FIG. 1 shows an embodiment of the present invention. This will be explained according to FIG. A panel holding member 1 and a funnel holding member 2 are sealed by a hook portion 3 provided on the panel holding member 1 to form an anode terminal housing 4. CRT with anode terminal 7 taken out from between panel 5 and funnel 6
8 is held between the panel pressing member 1 and the funnel pressing member 2. The anode terminal 7 is located in a cavity 9 formed between the panel holding member 1 and the funnel holding member 2, and enables connection with a lead wire 10 for supplying high voltage. The panel holding member 1 also constitutes a screen frame structure with the window 11.

6. Effects of the invention The work of attaching the anode terminal housing to the CRT is extremely easy compared to attaching with adhesive, and a strong attachment can be obtained. In addition, since the CRT has a screen frame assembled, the cost for the exterior of the electronic viewfinder and the number of assembly steps are reduced. This makes it possible to supply the market with inexpensive and highly safe electronic viewfinders.

[Brief explanation of the drawing]

FIG. 1A is a horizontal sectional view, B is a vertical sectional view, C is a right side view, and D is a plan view of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Panel holding member, 2... Funnel holding member, 3... Hook part, 4... Anode terminal housing, 5... Panel, 6... Funnel,
7... Anode terminal, 8... CRT, 9... Vacant room,
10...Lead wire, 11...Window.

Claims (1)

[Scope of utility model registration request] In a CRT anode terminal housing used for a CRT having a shape in which an anode terminal is taken out between a panel and a funnel, the CRT anode terminal housing is provided on the front surface of the panel,
This panel consists of a panel holding member that is integrated so that a window part is formed in a part thereof and a screen frame is formed by this window part, and a funnel holding member that is housed inside this panel holding member. An anode terminal housing for a CRT, characterized in that the panel and the funnel are held together by a pressing member and a funnel pressing member, and the panel, the funnel, and the anode terminal are installed in the CRT anode terminal housing.