JP2510426Y2 - Brider resistance device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bleeder resistance device connected to a flyback transformer used for supplying a high voltage to the anode electrode of a cathode ray tube of a television receiver or the like and used for passing a high voltage reactive current. It is about.

[0002]

2. Description of the Related Art In recent years, television receivers and display devices using cathode ray tubes have become larger in size and higher in image quality, and there is a trend toward improving the high voltage characteristics of a flyback transformer and making the high voltage a constant voltage. In order to improve the high-voltage characteristics and make the voltage constant, a bleeder resistor is connected to pass a reactive current to the high voltage, and the bleeder resistor is divided to obtain a low voltage proportional to the high voltage and a constant voltage circuit is used as the feedback voltage. The high voltage is used as a constant voltage to improve image quality.

A conventional bleeder resistance device will be described below. FIG. 8 shows the structure of a conventional bleeder resistance device.

As shown in the figure, a high voltage output line 5 having a high voltage input line 7 for connecting to a high voltage output part of a flyback transformer and an anode cap 6 for connecting and insulating the anode electrode part of a cathode ray tube is covered. 4, the high-voltage input line 7 and the high-voltage output line 5 are connected to one end of the bleeder resistor 1, and the ground line 8 is connected to the other end of the bleeder resistor 1. In order to insulate and hold the bleeder resistor 1, the high-voltage part of the bleeder resistor 1 is covered with an insulating case 2 from the high-voltage lead side by about 1/2, and the holding pieces 2a and 2b provided in the insulating case 2 cover the bleeder resistor 1. Bowl 1
To fix the position, and cover the whole with the upper lid 4 and the outer case 3 having the insertion tube 3a through which the ground wire 8 is inserted,
The inside of the exterior case 3 is filled with the insulating casting resin 9.

[0005]

In the structure of such a conventional bleeder resistor device, the ground wire 8 connected to the bleeder resistor 1 is composed of a solder-plated soft copper wire or a solder-plated hard copper wire of the bleeder resistor 1. Since the air connection is held only by the lead wire 1a, the lead wire 1a is bent during the assembly and casting work, and there is a problem that the dimensions of the ground wire 8 are changed and the lead wire 1a is broken. Was.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to improve the quality by preventing a change in the length of the ground wire of the bleeder resistance device and a break in the wire.

[0007]

In order to achieve the above object, the present invention is to connect a high voltage input line and a high voltage output line at one end.
And a bleeder resistor with a ground wire connected to the other end
And an outer case with an open end that houses the bleeder resistor.
And an upper lid that closes the open surface of the outer case,
Insulation placed around the bleeder resistor inside the outer case
Includes a case and insulating resin to fill the exterior case
The engaging portion that engages the insulating case and the bleeder
Has a hollow part that houses the connection between the resistor and the ground wire.
Connection storage part and a ground wire holder that holds the ground wire.
The ground wire lead holder having a holding part is provided .

[0008]

The present invention has a bleeder resistor having the above-described structure .
And the ground wire are fixed, and the ground wire lead holder
Connect the bleeder resistor and ground wire to the storage compartment
Since the parts are stored, the ground wire and the
Even if tensile force or pressing force is applied to the leader resistor, the bleeder resistor
No force is applied to the lead wire of the resistor, and the outer case
Even when filling the inside with insulating resin and casting, the pressure from the casting
The lead wire of the bleeder resistor is prevented from being bent because it is not directly applied to the connection portion, and it is possible to prevent a change in the length of the ground wire and a break in the wire.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall construction of the first embodiment of the present invention. 2 (a) and 2 (b) show the main part of the configuration of the present invention. 3 and 4 show the construction of the basic parts of the present invention.

In FIGS. 1 to 4, reference numeral 11 denotes an outer case formed of an insulating material such as synthetic resin and provided with an earth insertion cylinder portion 13 for inserting the ground wire 12 into the other surface, which is open on one side. An upper lid 18 integrally provided with insertion tube portions 16 and 17 for inserting the high voltage input line 14 and the high voltage output line 15 is fitted into the opening of the. Further, one end of a cylindrical insulating case 19 located inside the outer case 11 is fitted to the inner surface of the upper lid 18 on the outer case 11 side. On the other end of the insulating case 19, a holding piece 21 that holds the middle portion of the bleeder resistor 20 is provided.

The high-voltage side lead wire 20a of the bleeder resistor 20 is connected to the high-voltage input wire 14 and the high-voltage output wire 15, and the other lead wire 20b is connected to the ground wire 12. Further, an anode cap 22 that is connected to the anode electrode portion of the cathode ray tube and insulates the periphery thereof is provided in a portion of the upper lid 18 of the high voltage output line 15 that is pulled out from the insertion cylinder portion 17.

The insulating case 19 is set so as to cover about half of the high-voltage side of the bleeder resistor 20, and the holding piece 21 of the insulating case 19 has a ground wire 12 and a lead wire of the bleeder resistor 20. The ground wire lead holder 23 holding the connection part of 20b is engaged.

The earth wire lead holder 23 is made of an insulating material such as synthetic resin, and has a U-shaped engaging portion 24 which engages with the holding piece 21 of the insulating case 19 at the tip thereof. The ground wire lead holder 23 is mechanically coupled to the insulating case 19 by fitting the fixing rib 26 provided on the holding piece 21 into the engaging window 25 of FIG.

A connection accommodating portion 27 having a hollow portion is provided in the middle of the earth wire lead holder 23.
The connection accommodating portion 27 has a case-like shape with its upper surface opened, and a slit 28 is provided in a portion into which the lead wire 20b of the bleeder resistor 20 and the core wire 12a of the ground wire 12 are drawn. 20b and ground wire 1
The second core wire 12a crosses in a cross shape, and the crossing portion is soldered 29
Are connected with.

The ground wire 1 is continuous with the connection housing 27.
A ground wire holding portion 31 is provided in which 2 is press-fitted and the retaining projection 30 prevents the retaining.

On the bleeder resistor 20 side of the ground wire lead holder 23, guide pieces 32, 33 which come into contact with the side surface and the end surface of the bleeder resistor 20 are provided.

An exterior case 11 incorporating the above-mentioned components.
Insulation casting resin 34 is filled inside.

As described above, according to the first embodiment of the present invention, the bleeder resistor 20 and the ground wire are inserted through the insulating case 19.
12 and the ground wire lead holder 23 holds
The earth wire lead holder connection housing 27,
Connection between the lead wire 20b and the lead wire 20b of the bleeder resistor 20
Since the connecting portion is housed, the lead wire 20b of the bleeder resistor 20 can be prevented from being bent and broken, and the quality can be improved.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. 6 and 7. The present invention has a construction in which the position for holding the ground wire lead holder 23 of the first embodiment is changed and held by the bleeder resistor 20 .

That is, as the ground wire lead holder 23, the resistance holding portion 37 having the fitting pieces 35 and 36 is provided beside the connection housing portion 27, and the fitting piece 3 of the resistance holding portion 37 is provided.
The low-voltage side of the bleeder resistor 20 is sandwiched between 5 and 36, and the ground wire lead holder 23 is attached to the bleeder resistor 20. The ground wire lead holder 23 holds the ground wire 12 and the connection accommodating portion 27 Then, the lead wire 20b of the bleeder resistor 20 and the ground wire 12 are connected by soldering.

As described above, also in the second embodiment of the present invention, the bleeder resistor 20 and the ground wire 12 are held by the ground wire lead holder 23, and the bleeder resistor 20 is held.
The bending and disconnection of the lead wire 20b can be eliminated, and the quality can be improved.

[0022]

As is apparent from the above embodiments, according to the present invention, the connecting portion of the lead wire of the bleeder resistor and the ground wire is housed and held by the ground wire lead holder, and the length of the ground wire is shortened. It is possible to supply a high-quality bleeder resistance device which can prevent the change of the wire and the disconnection.

[Brief description of drawings]

FIG. 1 is a sectional view of a bleeder resistance device according to a first embodiment of the present invention.

2A and 2B are a partial sectional front view and a side sectional view of a main part of a bleeder resistance device according to a first embodiment of the present invention.

FIG. 3 is a perspective view of a ground wire lead holder according to a first embodiment of the present invention.

FIG. 4 is a partial sectional perspective view of an insulating case according to the first embodiment of the present invention.

FIG. 5 is a sectional view of a bleeder resistance device according to a second embodiment of the present invention.

6 (a) and 6 (b) are a front view and a side sectional view of a main part of a bleeder resistance device according to a second embodiment of the present invention.

FIG. 7 is a perspective view of a ground wire lead holder according to a second embodiment of the present invention.

FIG. 8 is a sectional view of a conventional bleeder resistance device.

[Explanation of symbols]

 11 Outer case 12 Ground wire 14 High voltage input wire 15 High voltage output wire 18 Upper lid 19 Insulation case 20 Bleeder resistor 20a, 20b Lead wire 21 Holding piece 22 Anode cap 23 Ground wire lead holder 24 Engagement portion 25 Engaging window 26 Fixing rib 27 Connection storage part 31 Ground wire holding part 32, 33 Guide piece 34 Insulation casting resin 35, 36 Fitting piece 37 Resistance holding part

Claims (2)

(57) [Scope of utility model registration request] 1. A high voltage input line and a high voltage output line are connected at one end.
And a bleeder resistor with a ground wire connected to the other end
And an exterior with an open end that houses the bleeder resistor
A case, an upper lid that closes the open surface of the outer case, and a front
Insulation is placed around the bleeder resistor inside the outer case.
The edge case and the insulating resin that fills the outer case
An engaging portion that engages with the insulating case; and the brie.
A hollow part for housing the connection between the resistor and the ground wire.
A connection storage portion that has, and a ground wire that holds the ground wire
A bridle resistance device provided with a ground wire lead holder having a holding portion . 2. The ground wire lead holder includes a bleeder.
The bleeder resistance device according to claim 1, further comprising an engaging portion that engages with the resistor.