JPH0522367B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] One or more primary windings and two arranged in a housing of insulating material and embedded in a synthetic resin.
Next winding is attached to the housing of insulating material,
a regulating device electrically connected to a secondary winding operating as a high voltage winding, the housing of insulating material having a partition wall between its interior space and the regulating device device; The adjusting device is provided on its short side edge with connecting members leading into the interior space, one of the connecting members being connected to the high voltage winding and the other connecting member being connected to zero potential. Regarding horizontal output transformers for aircraft.

[Prior Art] A horizontal output transformer having such a configuration is described in European Patent No. EP-B1-66804.
In this specification, the connecting member of the adjusting device is constituted by a soldered lug that is mounted so as to project from the short side of the basic body supporting the adjusting device. A conductive path from this soldering lug to a regulator (resistive potentiometer forming a variable voltage divider) on the base body is provided by printed wiring on the base body.

FIG. 3 is a top view of the adjusting device 7 described in the above patent specification with the container cover removed. On the base 17, a series circuit consisting of two semicircular low antibodies 18, 19, a linear resistor 20, and two conductor paths 21, 22 on both sides is formed by printed wiring. The semicircular resistors 18 and 19 constitute a resistance potentiometer, and are equipped with wipers 23 and 24 that rotate in contact with the resistors 18 and 19, and have outputs for taking out the focus voltage and the voltage of the grid G2 to the wipers 23 and 24. A conducting wire 8 is connected. Resistance potentiometers constituted by these semicircular hypobodies 18, 19 and wipers 23, 24 constitute the regulator of the regulating device. The conductor track 21 of this series circuit is connected to a soldering lug 9, which serves as a connecting element, and which is connected by a conductor 13 to the ground potential side of the high-voltage secondary winding. The conductor track 22 forming the other end of the series circuit is connected by a conductor track 30 arranged along the long side of the base body 17, with the connection made by the lug 9b attached to the base body 17 alongside the lug 9a. connected to the member. The lug 9a constituting this connecting member is connected to the high voltage side of the high voltage secondary winding. A high voltage generated by a high voltage secondary winding is applied between lugs 9 and 9a. Therefore, when the voltage used increases, a discharge occurs between these lugs 9 and 9a, causing dielectric breakdown. Therefore, it is necessary to increase the distance between these lugs 9a and 9b to avoid dielectric breakdown. Therefore, the maximum focus voltage of the picture tube is limited by the distance between the connecting members 9a and 9b of the adjusting device, and if a high voltage is required, the distance between the connecting members should be widened. A width adjustment device 7 is required, which increases the size of the device, and requires different adjustment devices depending on the voltage used.

[Problem to be Solved by the Invention] The object of the present invention is to provide a horizontal output for a television picture tube with an adjustment device having a high dielectric strength without complicating the structure or making the assembly complicated. It is to provide transformers.

[Means for Solving the Problem] This object is such that the connecting member connected to the high voltage winding is constituted by the stripped end of the insulated wire, and the other end of the insulated wire is This is accomplished by a horizontal output transformer connected to a regulator for the focus voltage.

Furthermore, in an advantageous embodiment of the invention, the insulation of the wire extends into the interior space of the housing of insulating material, and the wire is rigid and configured to be insertable into a groove in the housing of insulating material. ing.

[Example] The horizontal output transformer shown in FIG. 1 is made of an insulating material that houses a coil 2 consisting of a ferrite core 12, a primary winding wound around the ferrite core 12, and a low-voltage secondary winding. It has a housing 1.
A high voltage secondary winding is wound on a coil body 3 comprising a plurality of winding chambers. A diode 4 inserted between each high voltage secondary winding is arranged along the outer periphery of this coil body 3. A housing 1 of insulating material is provided with a partition wall 5 for separating the space in which the coil body 3 is accommodated and the adjustment device 7;
A guide 6 is provided on the surface of the partition wall 5 on the side of the adjustment device 7, which forms a coupling groove for connecting and sliding the flanges provided on both sides of the container of the adjustment device 7. ing.

The housing of the regulating device 7 is formed in the shape of a rectangular box and contains a resistive potentiometer for adjusting the focus voltage and the voltage of the grid G2, as will be explained later, and a resistance potentiometer for the focus voltage and the output voltage of the grid G2. A conductive wire 8 is led out from the container and led to the picture tube. The regulating device 7 also has connecting members 9a, 26 projecting from the container, to which the ends of the high-voltage secondary winding are connected to the ground potential and the high-voltage potential end to the conductors 13, 14, respectively.
connected by. When the flange of the container wall of the adjusting device 7 is coupled with the guide 6 and the adjusting device 7 is slid to the predetermined position shown, the connecting members 9, 9a are connected to the horizontal level of the step provided in the lower part of the housing 1 of insulating material. The connecting members 9a, 26 protrude into the interior of the housing 1 through a slot 32 provided in the section, and in this state, the connecting members 9a, 26 are connected to the conductive wires 13, 14. When the adjusting device 7 is slid between these positions, the hook 10 mounted on the underside of the adjusting device 7 engages with the hook portion 11 provided on the outside of the lower step of the housing 1, so that the adjusting device 7
It is held so that it does not fall out.

A high voltage output line 15 is connected to the diode 4 coupled to the last (highest potential) winding of the high voltage windings, and this high voltage output line 15 supplies high voltage to the television picture tube. Ru. At the portion where the high voltage output line 15 penetrates the housing 1, a sleeve 16 that slides over the output line 15 seals the space between the output line 15 and the wall of the housing 1. The inside of the insulating material housing 1 is filled with synthetic resin to increase the insulation strength.

FIG. 2 is a top view of the adjusting device 7 with the cover of the rectangular box-shaped container removed. The base 17 is made of ceramic, for example, and has two semicircular low antibodies 18, 19 and a linear resistor 2 on its surface.
0 and two conductor paths 21 and 22 on both sides are formed by printed wiring. The semicircular resistors 18, 19 constitute a resistive potentiometer, which is provided with rotating wipers 23, 24 in contact with it, and an output conductor 8 for taking out the focus voltage and the voltage of grid G2.
is connected. These semicircular resistors 1
The resistive potentiometer constituted by 8, 19 and wipers 23, 24 is a typical example of the regulator of the regulating device, and any other regulator can be used. Conductor path 2 of this series circuit
1 is a soldering lug 9a that functions as a connecting member
The soldering lug 9a is connected to the ground potential side of the high voltage secondary winding by the conductor 13 as described above. The conductor track 22 on the other side is connected to an insulated conductor 25 which is arranged along the long side edge of the base body 17 and which is connected to the high voltage side of the high voltage secondary winding. 14
It extends beyond the short side edge of the base body 17 to constitute a connecting member 26 for connection to the ground side, and is aligned with the soldering lug 9a of the connecting member on the ground side, the tip portion 26 of which is coated with an insulating coating. has been stripped away. The conductor 25 is rigid and the stripped conductor portion can function as a connecting member 26 in the same way as the soldering lug 9a. When the adjusting device 7 is slid as described above to cause the connecting member 9a to protrude into the interior of the housing 1 through the slot 32 in the horizontal part of the lower step of the housing 1, this connecting member 26 also moves into the housing 1. It can be made to protrude inside. At this time, the insulation coating 2 is removed so that the insulation coating remains up to the part of the conductor 25 that protrudes into the housing 1.
The length of stripping 5 is selected.

[Effect of the invention] As described above, the insulation coating 25 of the insulation coating conductor 25
In the container of the regulating device 7, between the high-voltage conductor path 22 and the ground conductor path 21, a connection element 26 constructed by stripping the Exposed high voltage conductor 3
0 and the connection member 9 is eliminated, and the exposed high voltage conductor 30 is replaced by the insulated conductor 25, so even if a high voltage is used, insulation breakdown will not occur in this part. It will never occur. Although the connection portion between the high voltage conductor path 22 and the insulated conductor 25 is exposed, the distance between this portion and the conductor path 21 is large enough to prevent dielectric breakdown. The portion of the conductor 25 from which the insulating coating 25 has been stripped is located within the insulating material housing 1, and since this housing is filled with a synthetic resin of insulating material, there is no fear of dielectric breakdown.

Therefore, with such a structure, extremely high dielectric strength can be obtained without making the structure particularly complicated, and assembly can be performed in a simple manner.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a horizontal output transformer according to one embodiment of the present invention. FIG. 2 is a top view of the horizontal output transformer regulator of FIG. 1; FIG. 3 is a top view of a conventional horizontal output transformer regulator.

Claims (1)

[Claims] 1. One or more primary windings and secondary windings disposed in a housing 1 of insulating material and embedded in synthetic resin; a regulator device 7 electrically connected to a secondary winding operating as a voltage winding, said housing 1 of insulating material having a partition wall 5 between its interior space and the regulator device. However, the adjusting device is provided on its short side edge with connecting members 9a, 26 leading into the interior space of the housing 1, one of the connecting members 26 being connected to the high voltage winding and the other connecting member 9a being connected to the high voltage winding. In a horizontal output transformer for a television receiver connected to zero potential, the connecting member 26 connected to the high-voltage winding is constituted by the stripped end of an insulated wire 25; A horizontal output transformer characterized in that the other end of the insulated wire 25 is connected to a focus voltage regulator 19, 24. 2. Horizontal output transformer according to claim 1, wherein the insulation of the wire 25 extends into the interior space of the housing 1 of insulating material. 3. Horizontal power transformer according to claim 1, wherein the wire 25 is rigid and insertable into a groove in the housing 1 of insulating material.