JPH0231993Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Field of Application" This invention relates to a cathode ray tube socket equipped with a high voltage discharge gap.

``Prior Art'' Some cathode ray tube sockets of this type have a connecting terminal structure in which a high voltage lead wire is connected to a high voltage electrode by simply inserting the lead wire without soldering. In this quick connection terminal structure, if the lead wire is not inserted sufficiently, the lead wire will not be completely connected. In the past, it was not possible to confirm whether the lead wire was inserted sufficiently. For this reason, inserting the lead wire has become an unstable task.

"Means for solving the problem" According to this invention, a contact piece is attached to the holding plate of the high-voltage side electrode of the high-voltage discharge gap, and a contact piece is attached diagonally close to the holding plate, and there is a gap between the contact piece and the holding plate. A lead wire hole into which a lead wire can be inserted from the outside is formed in the high-pressure discharge cavity housing the high-voltage discharge cavity, and the end sheath of the lead wire is fitted around the outside of the lead wire hole. A cylindrical protrusion to be fitted is integrally formed, and a window is formed around the cylindrical protrusion.

The insertion degree of the lead wire can be seen through this window.

"Example" As shown in Figures 1 and 2, the body 1 of the insulating material
Reference numeral 1 denotes a main body 12 connected to a terminal pin of a cathode ray tube, and a high-pressure discharge cavity 13 integrally provided on the side thereof.
It consists of The main body 12 has a substantially thick disk shape, and a cylindrical hole 15 is formed around the center line 14 of the main body 12 . A plurality of holes 16 into which mating terminal pins are inserted are formed in the main body 12 at equal intervals on a circle centered on the center line 14. Contact accommodating portions 17 are formed that communicate with these terminal pin insertion holes 16 and extend to the back surface of the body 11, respectively. Each contact housing part 1
A contact 18 is housed in each of the contacts 7 .

A grounding conductor 19 bent into an arc shape is provided along the outer circumferential surface of the main body 12, and a discharge gap chamber hole 21 is formed in the main body 12 between the opposing portions of the grounding conductor 19 and the contact 18. A discharge gap is formed between the ground conductor 19 and the contact 18 through the chamber hole 21 .

As shown in FIGS. 1 and 4, the high-pressure discharge gap chamber 13 has electrodes 31 and 3 constituting the high-pressure discharge gap.
2 is accommodated, and a high voltage contact 18h is provided in the main body 12 adjacent to the high voltage discharge gap chamber 13,
The high voltage contact 18h and the electrode 31 are connected to each other through a connecting conductor 33.

The electrodes 31 and 32 have hemispherical shapes facing each other, and a rectangular brim-shaped holding plate 3 is provided around each of the electrodes 31 and 32.
5, 36 are integrally formed, and these retaining plates 35,
36 is fitted into a slit formed on the inner peripheral surface of the high-pressure discharge gap chamber 13, and the electrodes 31 and 32 are held in the high-pressure discharge gap chamber 13. A contact piece 37 is attached to the holding plate 35 of the high voltage side electrode 31 in close opposition to the holding plate 35 . In this example, the contact piece 37 is arranged close to the front part of one side of the back surface of the holding plate 35. That is, one end of a connecting portion 38 is integrally formed with the front part of one side edge of the retaining plate 35, and the connecting portion 38 extends toward the rear side at approximately right angles to the retaining plate 35, and the other end of the connecting portion 38 is connected to the retaining plate 35. 35 is folded back and extended so as to face the back surface of the holding plate 35, and the extension part is used as a receiving plate 39. After the front end side of the receiving plate 39 is extended forward, the holding plate 35 is diagonally extended.
It is folded back to the side, and the folded part is the contact piece 37.
It is said that As shown in FIG. 6A, the contact piece 37 has a triangular tapered groove 41 formed in its center for positioning guidance.

As shown in FIGS. 2 and 4, the high-pressure discharge gap chamber 13 includes a housing body 42 that is integral with the body 12 and a cover 43 that covers the front opening of the housing body 42. The holding plate 3 of the electrode 31 is integrated with the housing main body 42.
A holding piece (rib) for holding the plate 5 is formed integrally with the holding piece, and as shown in FIG. This is the case when it is formed. Note that a solder connection terminal 46 is also provided at one end of the connection conductor 33, as shown in FIG.

In order to allow the high-voltage lead wire 47 to be inserted from the outside between the holding plate 35 and the contact piece 37, a fourth groove is provided in the cover 43 facing the triangular tapered groove 41.
As shown in the figure, a lead wire hole 48 is formed, and a cylindrical protrusion 49 into which the end of the jacket of the high voltage lead wire 47 is fitted is integrally formed on the outside of the lead wire hole 48. . The cylindrical protrusion 49 functions to guide the lead wire 47 and prevent vibration of the lead wire. The circumferential surface of the cylindrical protrusion 49 is shown in FIGS.
As shown in FIG. 9, the window 50 is formed into a slit shape. The shape of the window 50 is not limited to the slit shape.

A presser piece 51 is provided to elastically hold the contact piece 37 against the holding plate 35 when the lead wire 47 is inserted between the holding plate 35 and the contact piece 37 through the lead wire hole 48. That is, as shown in FIGS. 4 and 8, a cut groove 52 is formed in the cover 43 near a position close to the cylindrical protrusion 49 and opposite to the contact piece 37 of the holding plate 35. The presser piece 51 is erected integrally with the rotating plate 53 at right angles, and one end of the rotating plate 53 is integrally and rotatably connected to one front edge of the cover 43, and this connecting portion is a hinge 54. Rotating plate 53
When rotated to bring it into contact with the front surface of the cover 43, the holding piece 51 elastically pushes the receiving plate 39 toward the holding plate 35, and the high voltage lead wire 47 is mechanically held between the contact piece 37 and the holding plate 35. electrically secure and good electrical contact. At this time, a U-shaped piece 55 integrated with the rotating plate 53 is engaged with a claw 56 on the outer surface of the cover 43. Note that the cover 43 is connected to each other by a U-shaped piece 61 and a claw 62.

In other words, as shown in FIG. 5 and FIG. 6B, the contact piece 3
The angle θ ₁ between the support plate 7 and the receiving plate 39 can be changed by deflection, and the angle θ ₂ between the support plate 39 and the retaining plate 35 can also be changed by deflection. Therefore, the holding piece 51 can be inserted to push the receiving plate 39 toward the holding plate 35 so that the receiving plate 39 and the holding plate 35 are substantially parallel to each other. Presser piece 51
When it is pulled out, the receiving plate 39 returns to the position shown in FIG. 6B due to its elastic force, and the high voltage lead wire 47 can be easily pulled out.

"Effect of the invention" As described above, according to the cathode ray tube socket of this invention, when the high voltage lead wire 47 is inserted into the lead wire hole 48, the lead wire 47 is connected to the holding part 35 and the contact piece 3.
7 and electrically connected to the electrode 31, that is, it has a quick connection terminal structure, and can be easily connected to the electrode without soldering. Moreover, since the window 50 is formed in the cylindrical protrusion 49, it is possible to check the insertion state of the lead wire 47 into the cylindrical protrusion 49 through the window 50, and if the insertion is incomplete, the lead wire 47 and the electrode 3
It is possible to immediately know if the connection is insufficient, and to prevent the situation from remaining in such a state. Since the inserted state of the lead wire can be confirmed through the window 50, the lead wire connection work can be performed with confidence.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a cathode ray tube socket according to this invention, Fig. 2 is a front view taken in section from the main body side of Fig. 1, Fig. 3 is a perspective view showing a part of the ground conductor, and Fig. 4 The figure is a cross-sectional view taken along the line AA in FIG. 2, FIG. 5 is a perspective view showing the integrated structure of the high-voltage contact 18h and the electrode 31, FIG. 6A is a perspective view of the contact piece 37 seen from the opposite direction to FIG. FIG. 6B is a plan view of the contact piece 37, FIG. 7 is a perspective view showing the holding state of the holding plate 35, FIG. 8 is a perspective view showing the rotating plate 53 in an open state, and FIG. 9 is a cylindrical shape. FIG. 4 is a perspective view of a protrusion 49;

Claims (1)

[Scope of Claim for Utility Model Registration] In a cathode ray tube socket equipped with a high-voltage discharge gap, a retaining plate of the high-voltage side electrode of the high-voltage discharge gap,
A contact piece is installed diagonally close to and opposite to this, and a lead wire is inserted from the outside between the contact piece and the holding plate, which is formed in a high-pressure discharge gap chamber that accommodates the high-voltage discharge gap. a cylindrical protrusion integrally formed on the outer side of the periphery of the lead wire hole into which the outer sheath end of the lead wire is fitted; A cathode ray tube socket comprising a window formed therein.