KR0131188Y1 - Cathode ray tube - Google Patents

Abstract

The present invention relates to a cathode ray tube socket pin protection structure, the conventional cathode ray tube socket has a defect such that the pin is bent or corroded because the pin is long exposed.

The present invention is coupled to the protective cap (5) on the front surface of the socket body (1) as shown in Figure 2, the protective cap (5) by being separated from the socket body (1) by a predetermined distance from the socket body (1) When the protective cap (5) is coupled to the PCB substrate in the direction of the socket body (1) so that the pin (2) is sufficiently protruded forward, the upper frame (6) is formed by engaging the hook (7) It is possible to hook on the jaw (3), and the inner structure of the lower frame (8) is formed with a protrusion (10) that can be caught on the concave portion (11) of the leg (4).

Description

Cathode ray tube socket pin protection structure

1 is a perspective view of a conventional cathode ray tube socket.

2 is a perspective view of a cathode ray tube socket according to the present invention.

Figure 3 is a perspective view of the state of use of the cathode ray tube socket according to the present invention.

4 is a cross-sectional view taken along the line A-A in FIG.

5 is a cross-sectional view taken along the line B-B in FIG.

* Explanation of symbols for main parts of the drawings

1: socket body 2: pin

3: hang jaw 4: legs

5: protection cam 6: upper frame

7: Hanging part 8: Lower frame

9 through hole 10 protrusion

11: recessed part 12: side projection

13 cathode ray tube 14 base

15 Terminal 16: PCB

17: slope

The present invention relates to a cathode ray tube socket pin protection structure, and more particularly to a socket pin protection structure to form a protective cap on the cathode ray tube socket to protect the pin.

Cathode ray tube is CRT (CATHODE-RAY TUBE) and generally refers to CRT. The earliest ones were cold cathodes using vacuum discharge, but now the hot cathodes are widely used as oscilloscopes and television receivers.

The shadow mask type color CRT features three electron guns in the neck and a thin iron plate mask with about 300,000 small holes called shadow masks about 10mm away from the fluorescent surface.

The rear end of the cathode ray tube, that is, the base has a plurality of terminals, and these terminals are connected to the PCB, the cathode ray tube socket is used as a medium for connecting the terminals to the PCB.

The conventional cathode ray tube socket is to connect the terminals of the CRT to the rear portion 101 of the main body 100, as shown in Figure 1 of the exemplary drawing, the pin 103 of the front portion 102 penetrates the PCB To solder to the copper foil surface. Therefore, each terminal of the CRT is connected to the PCB through the pin 103 of the socket body 100.

In the cathode ray tube socket configured as described above, since the pin is protruded in the front part, the pin may be bent or bent during transportation and handling before being joined to the PCB, and may be exposed and directly exposed to the operator's or carrier's hands. Contact causes frequent corrosion. Therefore, if the pins are bent or bent before joining the PCB, the PCB is not correctly bonded and it is difficult to insert automatically. When corrosion occurs, there is a possibility of spark or fire due to poor soldering.

The present invention combines a protective cap that can move a predetermined distance in the front and rear direction to the front of the socket body in order to solve the above defects, the protective cap is pushed backward at the moment when the socket body is coupled to the PCB Cathode tube socket pin protection structure that protects the pin until the socket body is coupled to the PCB, and the legs of the body that supported the protective cap are coupled to the PCB to support the body. The purpose is to provide.

The present invention for realizing the above object is to form a locking jaw and legs in the main body, the front of the main body is coupled to the protective cap so that the locking portion and the lower frame inside of the protective cap is fixed to the locking jaw and legs respectively. When the protective cap moves in the main body direction, the pin of the main body protrudes toward the front of the protective cap so that the protective cap can be coupled to the PCB.

The present invention is described in detail with the accompanying exemplary drawings as follows.

According to the present invention, a plurality of pins 2 are formed on the front surface of the socket body 1, and the locking jaw 3 and the leg 4 having elasticity are formed on the socket body 1, and the front surface may be covered. The protective cap (5) is coupled to the front of the socket body (1) at a predetermined interval, but the circular upper frame (6) to protrude the end of each pin (2) and to form an annular hook (7) And, the lower frame (8) is to be coupled to the leg (4) in the through hole (9).

The protruding portion 10 protrudes inside the lower frame 8 so as to be caught by the recess 11 of the leg 4.

Reference numeral 12 is a side projection of the recess 11, 13 is a cathode ray tube, 14 is a base, 15 is a terminal, 16 is a PCB, 17 is an inclined surface formed on the outside of the front end of the leg (4).

Exemplary drawing FIG. 1 shows a conventional cathode ray tube socket. The conventional cathode ray tube socket has a case in which the case is integrated and the pin is protruded to the front part, so that the pin may be bent or corroded during transportation and handling. As a result, it is difficult to be accurately bonded to the PCB, resulting in poor soldering.

Exemplary Drawing 2 is a perspective view of the cathode ray tube socket according to the present invention before the coupling to the PCB substrate 16, in which case the protective cap (5) is held while being insulated from the socket body (1) at a predetermined interval The portion 7 is separated from the catching jaw 3, and the lower frame 8 and the leg 4 are kept to be coupled, and only the tip of the pin 2 has a minimum length of the upper frame ( 6) protrude outside of.

Exemplary Drawing 3 is a perspective view of a cathode ray tube socket according to the present invention, showing a moment immediately before being coupled to a PCB substrate 16.

This is for the sake of understanding. In practice, when the socket body 1 is pressed into the PCB 16, four legs 4 are inserted into the punched part formed in the PCB 16 at the moment. While being slightly moved inward by the inclined surface 17, the distance L between the legs is narrowed and at the same time, the protrusion 10 of the lower frame 8 is separated from the recess 11 of the leg 4.

Subsequently, when the socket body 1 is pushed toward the PCB body 16, the protective cap 5 is moved toward the socket body 1, and the pin 2 is inserted into the PCB substrate 16, and the locking part 7 is locked. It is fixed to the jaw (3). In addition, the leg 4 is also inserted through the PCB 16 so that the recess 11 is caught by the PCB 16.

4 is an enlarged cross-sectional view taken along line A-A of FIG. 2 and shows a state in which the protrusion 10 formed inside the lower frame 8 is coupled to the recess 11 formed on the outside of the leg 4.

5 is an enlarged cross-sectional view taken along the line B-B of FIG. 3 and shows a state in which the protrusion 10 of the lower frame 8 moves away from the groove 11 and moves downward of the side protrusion 12.

Since the protection cap 5 is coupled to the front surface of the socket body 1 so as to maintain a constant interval, the pin 2 is protected during handling and transport, and the socket body 1 is placed on the PCB 16. At the time of coupling, the gap L of the leg 4 is narrowed and the protrusion 10 of the lower frame 8 is separated so that the protective cap 5 is close to the socket body 1 so that the pin 2 is moved forward. As long as it is protruding, the leg 4 is coupled to the PCB 16 and the legs 4 are coupled to the PCB 16 to support the socket body 1.

Claims (4)

On the front surface of the socket body (1), the embroidery pin (2) is formed, the locking jaw (3) and the elastic leg (4) is formed on the socket body 1, a protective cap that can cover the front (5) is coupled to the front of the socket body (1) with a one-to-one spacing, the circular upper frame (6) so that the end of each pin (2) protrudes, and forms an annular hook (7) , Lower frame (8) is a cathode ray tube socket pin protection structure to be coupled to the leg (4) in the through hole (9). 2. The cathode ray tube socket pin protection structure according to claim 1, wherein the leg 4 is provided with a recess 11 and a side protrusion 12 so as to be caught with the protrusion 10 protruding into the lower frame 8. . The method of claim 1, wherein the leg (4) has a restoring force to the outside and is coupled to the lower frame (8), when engaging the PCB 16 so that the recess 11 is caught by the PCB (16) Cathode tube socket pin protection structure. The method according to claim 1, wherein when the protective cap 5 is in close contact with the socket body 1, the locking portion 7 of the protective cap 5 is caught by the locking jaw 3 of the socket body 1 and at the same time the pin 2 Cathode ray tube socket pin protection structure so that) is sufficiently protruded to the front of the upper frame (6).