JP3092774B2 - Quick connection type cathode ray tube socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quick connection type cathode ray tube socket, and more particularly to a quick connection type cathode ray tube socket for holding down a core portion and a covering portion of a focus lead wire.

[0002]

2. Description of the Related Art A focus lead wire holding fast connection type cathode ray tube socket can be connected by simply inserting it into a lead wire insertion hole without soldering when connecting the focus lead wire to a high voltage electrode. It is a type of cathode ray tube socket.

Referring to FIGS. 1 and 2, a body 11 made of an insulating material includes a main body 12 into which a terminal pin of a cathode ray tube is inserted and connected, and a high-pressure discharge space chamber 13 integrally formed on a side portion thereof. It consists of. The main body 12 is thick and substantially disk-shaped, and has a through-hole 15 having a circular cross-section centered on the center line 14. A plurality of terminal pin insertion holes 16 into which terminal pins of the cathode ray tube are inserted are formed at regular intervals on a circle centered on the center line 14 of the main body 12. The terminal pin insertion holes 16 are formed with contact receiving portions 17 extending to the rear surface of the body 11 in communication therewith. The contacts 18 are accommodated in these contact accommodating portions 17. Referring to FIG. 3 as well, the main body 12 is provided with a ground conductor 19 curved in an arc shape along the outer peripheral surface thereof. Then, a discharge gap chamber hole 21 is formed between each of the contacts 18 and the ground conductor 19, and a discharge gap is formed between the ground conductor 19 and the contact 18 in the discharge gap chamber hole 21.

Referring to FIG. 1, FIG. 4 and FIG. 5, a high voltage discharge space chamber 13 accommodates a high voltage electrode 31 and a high voltage discharge electrode 32 constituting a high voltage discharge space. A high-voltage contact 1 to which a high-voltage terminal pin of a cathode ray tube is connected adjacent to the high-pressure discharge space chamber 13 of the main body 12.
8h are provided. The high voltage contact 18 h and the high voltage electrode 31 are connected to each other via a connection conductor 33.
The high-voltage electrode 31 has a hemispherical shape, and a rectangular flange-shaped holding plate 35 is integrally formed around the high-voltage electrode 31. The holding plate 35 is fitted in a slit 71 formed in a high-voltage electrode holding portion 70 formed inside the high-pressure discharge gap chamber 13, and holds the high-voltage electrode 31 in the high-pressure discharge gap chamber 13. Similarly, the high-voltage discharge electrode 32 has a hemispherical shape, and a rectangular flange-shaped holding plate 36 is formed integrally therearound. The holding plate 36 is also fitted in a slit 73 formed in the high-pressure discharge electrode holding portion 72 formed in the high-pressure discharge space 13 and fitted in the slit. Holding. The high-voltage electrode 31 and the high-voltage discharge electrode 32 face each other to form a high-pressure discharge gap.

[0005] In the quick connection type cathode ray tube socket as described above, the focus terminal 37 to which the high voltage focus lead wire 47 is connected is closely opposed to the holding plate 35 of the high voltage electrode 31 and is integrally formed on the holding plate 35. Is formed. In this example, the focus terminal 37 is disposed close to and opposed to a front portion on one side of the back surface of the holding plate 35. That is, the connecting portion 38 is formed such that one end thereof is integrally and perpendicularly extended from the front portion of one side edge of the holding plate 35 to the back side, and the other end of the connecting portion 38 is opposed to the back surface of the holding plate 35 in parallel. The folded portion is the receiving plate 39, the upper end of the receiving plate 39 extends forward and downward, and the downwardly extended portion is the focus terminal 37.

Referring to FIGS. 4 and 6, the high-pressure discharge gap chamber 13 is formed integrally with the main body 12.
2 and a cover 43 that covers the front opening of the housing body 42. As described above, the high-voltage electrode holding portion 70 that holds the holding plate 35 of the high-voltage electrode 31 is formed integrally with the housing main body 42. Restriction piece 4 to prevent
4 and 45 are integrally formed. As shown in FIG. 5, a solder connection terminal 46 is connected to one end of the connection conductor 33.
Is also provided.

Referring to FIG. 4, reference numeral 48 denotes a lead wire insertion hole formed in the cover 43 facing the focus terminal 37, and a high-voltage focus lead wire 47, which is an external lead wire, is provided in the insertion hole 48. , And the leading end of the core wire is located between the holding plate 35 and the focus terminal 37. The cylindrical projection 49 surrounding the lead wire insertion hole 48 is formed with a cover 43.
Are formed integrally. The cylindrical projection 49 is used to insert the lead 47 when the high-voltage focus lead 47 is inserted.
In addition to the function of the guide, the insulating coating of the lead wire is fitted to prevent the vibration.

Here, referring to FIGS. 4 and 7, the cover 43 is provided with a rotating plate 53 via a hinge 54. A pressing piece 51 and a U-shaped piece 55 are formed on the rotating plate 53. The pressing piece 51 is erected at right angles to the turning plate 53, and one end of the turning plate 53 is integrally and rotatably connected to one front edge of the cover 43, and the connecting portion is a hinge 54. Reference numeral 52 denotes a notch, which is close to the cylindrical projection 49 of the cover 43 and the focus terminal 3 of the holding plate 35.
7 is formed near the opposite position. The high-voltage focus lead wire 47 is connected to the holding plate 3 through the lead wire insertion hole 48.
When the rotary plate 53 is rotated to contact the front surface of the cover 43 and is pressed downward in a state inserted between the focus terminal 37 and the focus terminal 37, the holding piece 51 is inserted through the cut groove 52 to the receiving plate 39. Is elastically pressed toward the holding plate 35, so that the focus terminal 37 and the holding plate 35 can securely hold the high-voltage lead wire 47 mechanically and make good electrical contact.
At this time, the U-shaped piece 55 integrated with the turning plate 53 is connected to the claw 56 on the outer surface of the cover 43, whereby the cover 43 and the turning plate 53 are held connected to each other.
The electrical and mechanical connection of the high-voltage lead wire 47 by the holding plate 35 is also maintained.

[0009]

In the conventional cathode ray tube socket of the quick connection type as described above, the electrical and mechanical connection of the focus lead wire 47 is maintained by the holding plate 35 and the focus terminal 37 at the end of the core wire. It is only considered in one part of the part. As described above, when the electrical and mechanical connection of the focus lead wire 47 is held at one position at the end of the core wire, the resistance to the detachment of the focus lead wire 47 is small. Then, the core wire portion is twisted due to the rotation of the focus lead wire 47.
Also, for some reason, the core portion of the focus lead wire 47 is short and the length of the inserted core portion is small, or
If a connection failure occurs between the focus lead wire 47 and the focus terminal 37 due to the wire breakage, the connection between the core portion of the focus lead wire 47 and the focus terminal 37 becomes decisively unstable, and a high voltage is applied. This leads to a serious accident that the connection end of the focus lead wire 47 that has been separated is released.

As described above, the reliability of the connection of the focus lead wire in the conventional quick connection type cathode ray tube socket is not high. The present invention provides a quick connection type cathode ray tube socket which solves the above-mentioned problems.

[0011]

Means for Solving the Problems A high-pressure discharge space chamber 13 for accommodating a high-pressure discharge space is provided, and an integrated focus terminal which is inclined and closely opposed to the holding plate 35 of the high-voltage side electrode 31 of the high-pressure discharge space. 37, and a cylindrical projection 49 provided with a lead wire insertion hole 48 for inserting and guiding a focus lead wire 47 inserted from outside between the focus terminal 37 and the holding plate 35. A quick-setting type cathode ray tube socket having a lead wire holding portion for holding the wire 47 at two places of the core portion and the coating portion was formed.

A high-pressure discharge space chamber 13 accommodating the high-pressure discharge space is provided, and an integrated focus terminal 37 that is inclined and closely opposed to the holding plate 35 of the high-voltage side electrode 31 in the high-pressure discharge space is used for high-pressure discharge. A lead wire insertion hole 48 provided in the discharge gap chamber 13 for guiding and guiding a focus lead wire 47 inserted from outside between the focus terminal 37 and the holding plate 35 and opened upward. The cover 43 of the high-pressure discharge gap chamber 13 is provided with a cylindrical protrusion 49 in which the 50 is formed, and a cut groove 52 is formed in the cover 43 near the insertion portion 50 of the cylindrical protrusion 49. , Kerf 52
And presses the focus terminal 37 to pinch the focus lead wire 47 between the focus terminal 37 and the holding plate 35.
1 and a lock member 80 having a cover pressing rib 82 for holding the insulating cover portion of the focus lead wire 47 against the inner wall of the cylindrical projection 49 via the insertion portion 50 and a lock member fitting frame body 90. A quick-setting cathode ray tube socket was constructed.

Further, in the above-described quick connection type cathode ray tube socket, the lock member fitting frame body 90 also constitutes a quick connection type cathode ray tube socket formed so as to surround the cylindrical projection 49.

[0014]

An embodiment of the present invention will be described with reference to the drawings.
The same reference numerals are used for members common to the conventional example. By the way, the present invention is an improvement on the shape and structure of the lock member 80 and the shape and structure in which the rotating plate is fitted and held in the conventional example of the above-described quick-connection type cathode ray tube socket. Hereinafter, description will be made focusing on these points. Other points are the same as the conventional example.

Referring to FIG. 8 , reference numeral 48 denotes a lead wire insertion hole formed in the cover 43 so as to face the focus terminal 37. The core portion of the high-voltage focus lead wire 47, which is an external lead wire, The housing body 4 through the insertion hole 48
2, and the leading end of the core wire is located between the holding plate 35 and the focus terminal 37. A good cylindrical projection 49 surrounding the periphery of the lead wire insertion hole 48 is formed integrally with the cover 43. This cylindrical projection 49
Functions as a guide for the focus lead wire 47 when the high-voltage focus lead wire 47 is inserted, and also serves to mechanically hold the insulating coating of the lead wire.

Referring to FIGS. 8, 9 and 10, the cover 43 is provided with a lock member 80 via a hinge 54. The lock member 80 has a core wire pressing portion 81 extending downward and protruding downward therefrom,
A coating pressing rib 82 is formed so as to protrude from the intermediate portion on the side of the cylindrical protrusion 49. A lock member engaging portion 83 is formed on a side different from the side on which the covering press rib 82 is formed so as to project in a direction opposite to the covering press rib 82. Reference numeral 52 denotes a notch, which comes close to the cylindrical projection 49 of the cover 43 and
5 is formed near the position opposite to the focus terminal 37. Reference numeral 90 denotes a lock member fitting frame having a substantially U-shaped cross section in the horizontal direction. The fitting frame 90 is formed integrally with the cover 43 so as to surround the cylindrical projection 49. 91
Is a fitting hole into which the lock member engaging portion 83 is engaged.
Reference numeral 92 denotes a stop step for stopping the downward movement of the lock member 80. The lock member 80 side of the upper part of the cylindrical projection 49 is
The insertion portion 50 is configured to be released and into which the cover pressing rib 82 is inserted. The above-described hinge 54 is attached to the lower end of the lock member fitting frame 90 that is open in a U-shape.

Here, when the high voltage focus lead wire 47 is inserted between the holding plate 35 and the focus terminal 37 through the lead wire insertion hole 48, the lock member 80
Is rotated to contact the front surface of the cover 43 and press it downward, the core wire pressing portion 81 descends while pressing the receiving plate 39 slightly elastically toward the holding plate 35 through the cut groove 52. At the same time, the cover pressing rib 82 is inserted into the insertion portion 5 of the cylindrical projection 49.
The insulating coating part of the high voltage focus lead wire 47 is firmly held between the inner wall of the cylindrical projection 49 while gradually increasing the contact pressure by contacting with the insulating coating part of the high voltage focus lead wire 47 through the zero. That is, the high-voltage focus lead wire 47 has its core wire portion firmly sandwiched between the focus terminal 37 and the holding plate 35, and its insulating coating portion is in contact with the coating pressing rib 82 and the inner wall of the cylindrical projection 49. , And the high voltage focus lead wire 47 is located at these two locations after all. In this way, electrical and mechanical contact between the focus terminal 37 and the high voltage focus lead 47 is assured.

At the final stage of the downward pressing operation of the lock member 80, the lock member 80 is stopped from proceeding downward by the stop step portion 92. At this time, the lock member engaging portion 83 is fitted into the fitting hole 91, and As a result, the core portion of the high-voltage focus lead wire 47 is firmly sandwiched between the focus terminal 37 and the holding plate 35, and the insulating coating portion is formed between the coating pressing rib 82 and the inner wall of the cylindrical projection 49. The state of being firmly held between them is fixedly held.

The connection between the core portion of the focus lead wire 47 and the focus terminal 37 is a lock member 80.
The cover pressing rib 82 is inserted into the insertion portion 50 of the cylindrical projection 49 when the is fitted to the engagement frame 90, and the engagement frame 90 surrounds the cylindrical projection 49 integrally with the cover 43. Therefore, the creeping discharge path between the external circuit and the socket is large.

[0020]

As described above, the core portion of the focus lead wire 47 is short for some reason and the length of the core wire portion to be inserted is small, or the focus lead wire 47 is in focus due to a broken wire. A connection failure between the core terminal of the focus lead wire 47 and the focus terminal 37 becomes decisively unstable due to a poor connection with the terminal 37, and the connection end of the focus lead wire 47 is detached and released. If this happens, there is a possibility that a large accident such as the focus lead wire 47 to which a high voltage is applied coming into contact with surrounding electric circuit elements may be caused. In such a case, the quick-connecting type cathode ray tube socket of the present invention almost never detaches and releases the connection end portion of the focus lead wire 47 by sandwiching the covering portion of the focus lead wire 47. However, it is possible to prevent the above-described accidents, which require the most attention, in the quick connection type cathode ray tube socket. Focus lead wire 47 to which high voltage is applied
With respect to the above, it is significant to pinch the covering portion.

In the quick connection type cathode ray tube socket according to the present invention, the lock member 80 simultaneously holds the core portion and the covering portion of the focus lead wire 47 at the same time.
The resistance to the detachment of the focus lead wire 47 is remarkably enhanced as compared with the case where only the core portion is sandwiched. Further, the covering portion of the focus lead wire 47 is
2 strongly presses and clamps against the inner wall of the cylindrical protrusion 49 of the cover 43, so that the focus lead wire 4
Rotation of the focus lead wire 47 due to rotation of the focus lead wire 47 is prevented, so that the core wire portion is not twisted.

Further, even if the insertion portion 50 is formed in the cylindrical projection 49, the cover pressing rib 82 is present here, and the cylindrical projection 49 is surrounded by the fitting frame 90. The creeping discharge path from the core portion of the focus lead wire 47 to the circuit outside the socket is not shortened. As described above, the reliability of the connection of the focus lead wire in the quick connection type cathode ray tube socket is greatly improved.

[Brief description of the drawings]

FIG. 1 is a top view of a conventional example of a quick connection type cathode ray tube socket.

FIG. 2 is a cross-sectional view of the cathode ray tube socket shown in FIG.

FIG. 3 is a perspective view of a ground conductor.

FIG. 4 is a sectional view taken along line AA of FIG. 2;

FIG. 5 is a perspective view of a contact and an electrode.

FIG. 6 is a perspective view of a holding plate.

FIG. 7 is a diagram illustrating a rotating plate.

FIG. 8 is a sectional view illustrating a lock member of the cathode ray tube socket.

FIG. 9 is a perspective view illustrating a lock member of the cathode ray tube socket.

FIG. 10 is a view of FIG. 9 as viewed from above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 13 High-pressure discharge space chamber 31 High-voltage side electrode 35 Holding plate 37 Focus terminal 43 Cover 47 Focus lead wire 48 Lead wire insertion hole 49 Cylindrical projection 50 Insertion part 81 Core wire pressing part 82 Coating pressing rib 80 Lock member 90 Lock member fitting Joint frame

Claims (3)

(57) [Claims] [Claim 1] comprising a high-pressure discharge gap chamber for accommodating the high-pressure discharge gap, provided with a focus terminal integral closely facing inclined retaining plate of the high pressure side electrode of the high-pressure discharge gap, the focus terminal And a cylindrical projection in which a lead wire insertion hole for inserting and guiding a focus lead wire inserted from the outside is inserted between the holding terminal and the holding plate.
Press to insert the core part of the inserted focus lead wire.
A core wire pressing and holding portion that presses and holds the holding plate,
Insert the covering part of the inserted focus lead wire into the cylindrical protrusion
And a cover pressing and holding portion pressing and holding the inner peripheral surface of the
A quick-connecting type cathode ray tube socket , comprising a lead wire pressing and holding portion . 2. A comprising a high-pressure discharge gap chamber for accommodating the high-pressure discharge gap, the high-pressure discharge gaps inclined to near the opposite focus terminal the high-pressure discharge gap integrated in the holding plate of the high-voltage side electrode provided in the room, along with the lead wire insertion hole for inserting guide the focus lead wire inserted from the outside between the focus terminal and the holding plate is drilled, the insertion portion to reach the upper end part of the peripheral wall There the tubular projection formed is provided in the cover of the high-pressure discharge gap chamber, and kerf in the vicinity of the insertion portion of the tubular projecting portion in the cover is bored, the focus pin above
It is placed in the kerf and its end is bent
A core wire holding portion that is inserted into the lead wire insertion hole, is inserted into the kerf, presses the end of the focus terminal, and clamps the focus lead wire between the focus terminal and the holding plate. , on the focus lead wire insulating coating portion through the <br/> insertion portion
Cover press rib that presses against the inner wall of the cylindrical protrusion
And the cover is releasably engaged with the cover to maintain the inserted state.
A quick-connect cathode ray tube socket, comprising: a lock member having an engaging portion to be held; and a lock member fitting frame. 3. The quick-setting cathode ray tube socket according to claim 2, wherein the locking member fitting frame is formed so as to surround the cylindrical projection. Tube socket.