JP3324368B2 - High voltage connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-voltage connector used for all devices or parts requiring a high voltage, and more particularly, to a device using a CRT such as a projection television, a color television, a display, and a copying machine. The present invention relates to a device that does not use a CRT, such as a flyback transformer, and a high-voltage connector used for components such as a flyback transformer, a high-pressure transformer, a focus pack, and a high-voltage CR block.

[0002]

2. Description of the Related Art The structure of a conventional high-voltage connector will be described with reference to FIG.

In FIG. 1, reference numeral 21 denotes a high-voltage connector, which includes a connector main body 23, a holder 24, and a high-voltage lead wire 25.

The connector body 23 projects from the case 22 of the flyback transformer body, has a substantially cylindrical shape, and has a fitting projection 23a on the outer peripheral surface on the distal end side.
Is provided. The holder 24 includes a first guide portion 26 having a substantially cylindrical shape, a flange portion 27 extending radially from one opening of the first guide portion 26, and an outer periphery of the flange portion 27. The second guide portion 28 extends in a direction opposite to the first guide portion 26 and has a substantially cylindrical shape. Further, the second guide portion 28 is provided with a fitting window 28 a penetrating from the inner peripheral surface to the outer peripheral surface, and the inner diameter of the second guide portion 28 is substantially equal to the outer diameter of the connector main body 23.

Here, one end of the high-voltage lead wire 25 is connected to a cathode ray tube anode (not shown) of a projection television through an anode cap (not shown).
The other end is inserted into the first guide 26 of the holder 24.

The second guide portion 28 of the holder 24
Of the high-voltage lead wire 25 inserted through the holder 24 while the fitting projection 23a is locked by the fitting window 28a. Is connected to the terminal 29 inside the connector main body 23.

Next, the configuration of another conventional high-voltage connector will be described with reference to FIG. Parts that are the same as or correspond to those in FIG. 3 are given the same reference numerals, and descriptions thereof are omitted.

In FIG. 3, a holder 32 constituting the high-voltage connector 31 includes a first guide 26, a flange 27, a second guide 28, and a third guide provided inside the second guide 28. A guide section 33 is provided. The third guide portion 33 has a substantially cylindrical shape and has an inner peripheral surface that is continuous with the inner peripheral surface of the first guide portion 26 via the flange portion 27. The length L1 of the third guide 33 is smaller than the length L2 of the second guide 28.

The inner peripheral surface of the first guide portion 26 is fitted to the outer peripheral surface near the distal end of the connector body 23, the fitting projection 23a is locked by the fitting window 28a, and the third guide The part 33 is inserted into the connector main body 23 from the distal end.

[0010]

However, the conventional high-voltage connector has the following problems.

In the high-voltage connector 21, the holder 24
And the connector main body 23 are fitted to each other, and the second guide portion 28 comes into contact with the outer peripheral surface of the connector main body 23, but there is nothing that contacts the inner peripheral surface of the connector main body 23. Therefore, when an external force in the radial direction (indicated by f1 in FIG. 3) is applied to the holder 24 or the connector main body 23, the fitting projection 23a is locked by the fitting window 28a, but the holder 24 is not connected to the connector main body. 23, the holder 24
As a result, the high-voltage lead wire 25 is pulled and the high-voltage lead wire 25 comes off the terminal 29, which may result in poor conduction and poor external discharge.

Further, in the high-voltage connector 31, the third guide portion 33 constituting the holder 32 is connected to the connector main body 2.
3, the third guide portion 33 comes into contact with the inner peripheral surface of the connector main body 23, and the length L1 of the third guide portion 33 is smaller than the length L2 of the second guide portion 28. . Accordingly, when a radial external force (indicated by f2 in FIG. 4) is applied to the holder 24 or the connector main body 23, the force acting on the outer peripheral surface of the connector main body by the second guide portion 28 and the third guide When the force acting on the inner peripheral surface of the connector body by the portion 33 is compared, the former is larger than the latter. Therefore, although the fitting projection 23a is locked by the fitting window 28a, the holder 24 is disengaged from the connector main body 23, and the high voltage lead 25 is pulled by the holder 24, and the high voltage lead 25 is connected to the terminal 29. , There is a possibility that conduction failure and external discharge failure may occur.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a high-voltage connector in which a holder is not easily detached from a connector body.

[0014]

According to the present invention, there is provided a high-voltage lead wire, a substantially cylindrical connector body, a substantially cylindrical first guide portion, and a first guide portion. A flange portion extending from one opening of the guide portion in a radial direction of the opening portion, a second guide portion extending perpendicularly to the flange portion from an outer edge of the flange portion, and a substantially cylindrical shape; And a holder formed of a third guide portion having an inner peripheral surface continuous with the inner peripheral surface of the first guide portion via the collar portion, and an inner diameter of the second guide portion is , Of the connector body
It is formed substantially equal to the outer diameter, the tip of the connector body is inserted inside the first guide portion, and the third guide portion is inserted inside from the tip of the connector body, so that the holder and A high-voltage connector in which the connector main body is fitted and one end of the high-voltage lead wire is held inside the connector main body via a first guide portion and a third guide portion of the holder. The length dimension of the third guide portion is the same as or larger than the length size of the second guide portion.

In the high-voltage connector according to the present invention, the length of the third guide portion is equal to or larger than the length of the second guide portion. Therefore, when an external force in the radial direction is applied to the holder or the connector main body, the force acting on the inner peripheral surface of the connector main body by the third guide portion and the outer peripheral surface of the connector main body by the second guide portion. The former and the latter are the same, or the former is larger than the latter when compared with the force acting on the former. Therefore, the third guide portion is caught on the inner peripheral surface of the connector main body, and the holder is not easily detached from the connector main body.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a high-voltage connector according to the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a high-voltage connector;
A connector body 3, a holder 4, and a high-voltage lead wire 5 are provided. The connector body 3 projects from the case 2 of the flyback transformer body and has a substantially cylindrical shape. The connector body 3 has a fitting projection 3a on the outer peripheral surface on the distal end side, and has a terminal 9 inside.

The holder 4 comprises a first guide part 6, a flange part 7, a second guide part 8, and a third guide part 9. Here, the first guide portion 6 has a substantially cylindrical shape, and the flange portion 7 extends radially from one opening of the first guide portion 6 and has a substantially disk shape. . Also,
The second guide portion 8 extends from the outer periphery of the flange portion 7 in a direction facing the first guide portion 6 and has a substantially cylindrical shape. The inner diameter of the second guide portion 8 is substantially equal to the outer diameter of the connector body 3, and the second guide portion 8 is provided with a fitting window 8a penetrating from the inner peripheral surface to the outer peripheral surface. The third guide portion 9 is provided inside the second guide portion 8, has a substantially cylindrical shape, and is continuous with the inner circumferential surface of the first guide portion 6 via the flange portion 7. Having. Further, the length dimension A of the third guide part 9 is equal to the length dimension B of the second guide part 8.
Greater than.

Here, the second guide portion may be provided on a part of the outer peripheral surface of the flange portion 7, like the second guide portion 18 shown in FIG. In this case, the second guide portion 18 may be singular or plural. Further, the shapes of the fitting projection 3a and the fitting window 8a are not limited to those shown in FIG. 1 and need not be particularly provided.

Further, one end of the high-voltage lead wire 5 is connected to a cathode ray tube anode (not shown) of the projection television via an anode cap (not shown), and the other end is connected to the first guide portion 5 of the holder 4. Is inserted through.

The inner peripheral surface of the second guide portion 8 is fitted to the outer peripheral surface near the distal end of the connector main body 3, and
The third guide portion 9 is inserted into the connector main body 3 from the front end thereof. At this time, the fitting projection 3a of the connector body 3
Is locked to the fitting window 8a, and the other end of the high-voltage lead wire 5 inserted into the holder 4 is connected to the terminal 10 inside the connector main body 3. As described above, the other end of the high-voltage lead wire 5 is held inside the connector main body 3 and is connected to a coil (not shown) in the flyback transformer via the diode 11 connected to the terminal 10. .

As described above, in the high-voltage connector 1,
The length dimension of the third guide portion 9 that contacts the inner peripheral surface of the connector main body 3 is larger than the length dimension of the second guide portion 8 that contacts the outer peripheral surface of the connector main body 3. For this reason, the holder 4
Alternatively, when a radial external force (indicated by F in FIG. 1) is applied to the connector main body 3, the force acting on the inner peripheral surface of the connector main body 3 by the third guide part 9 is reduced by the second guide part 8. Therefore, the force acting on the outer peripheral surface of the connector main body 3 is larger than that. Therefore, the third guide portion 9 is hooked on the inner peripheral surface of the connector body 3 and the holder 4 is
It is hard to come off. As a result, electrical connection is kept good, poor conduction contact and without fear of external discharge failures, thereby improving the reliability of the high voltage connector.

In this embodiment, the high-voltage connector used for a flyback transformer incorporated in a projection television has been described as an example. Can be applied.

[0024]

In the high voltage connector according to the present invention,
The length of the third guide portion that contacts the inner peripheral surface of the connector body is the same as the length of the second guide portion that contacts the outer peripheral surface of the connector body, or the length of the second guide portion Greater than. Therefore, when an external force in the radial direction is applied to the holder or the connector main body, the force acting on the inner peripheral surface of the connector main body by the third guide portion and the outer peripheral surface of the connector main body by the second guide portion. The former and the latter are the same, or the former is larger than the latter when compared with the force acting on the former. Therefore, the third guide portion is caught on the inner peripheral surface of the connector main body, and the holder is not easily detached from the connector main body. As a result, electrical connection is kept good, poor conduction contact and without fear of external discharge failures, thereby improving the reliability of the high voltage connector.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a main part of a high-voltage connector according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing a modification of the high-voltage connector of FIG. 1;

FIG. 3 is a sectional view of a main part showing a conventional high-voltage connector.

FIG. 4 is a sectional view of a main part showing another conventional high-voltage connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High voltage connector 3 Connector main body 4 Holder 5 High voltage lead wire 6 First guide part 7 Flange part 8 Second guide part 9 Third guide part

Claims (1)

(57) [Claims] A high-voltage lead wire; a substantially cylindrical connector body; a first guide having a substantially cylindrical shape; and a first guide extending from one of the openings in a radial direction of the opening. A flange portion, a second guide portion extending perpendicularly to the flange portion from an outer edge of the flange portion, and a substantially cylindrical shape. and a holder comprising a third guide portion having an inner peripheral surface continuous through section, the second gas
The inside diameter of the guide is almost equal to the outside diameter of the connector body.
The holder and the connector body are formed by being formed, the tip of the connector body is inserted inside the first guide portion, and the third guide portion is inserted inside from the tip of the connector body. A high-voltage connector in which one end of the high-voltage lead wire is held inside the connector main body via a first guide portion and a third guide portion of the holder; A high-voltage connector, wherein the length of the portion is equal to or larger than the length of the second guide portion.