JP2543045Y2 - High voltage resistance pack - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] This invention is based on CRT (Cathode Ra
The present invention relates to a high-voltage resistor pack in which a resistor to which a high voltage is applied, such as a bleeder resistor of a cathode ray tube, is housed in an insulating case.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a bleeder resistor 1 provided in a high-voltage resistor pack having a variable resistor for adjusting a focus voltage of a CRT, as shown in FIG. In order to prevent the discharge and prevent the discharge, it is attached to the high-voltage resistance pack in a state where the entire surface is covered with the epoxy-based soft resin 2. The soft resin 2 is formed by accommodating the bleeder resistor 1 in a Teflon mold 3 and pouring the soft resin 2 around the bleeder resistor 1 to cure.

[0003] The bleeder resistor 1 is mounted in the accommodating portion of the high-voltage resistance pack, and an external resistor for discharging the capacitor is mounted on the high-voltage resistance pack.

Further, as disclosed in Japanese Utility Model Application Laid-Open No. 2-72501, a bleeder resistor is temporarily housed in a bleeder resistor case, a oxy resin is injected and cured, and then the bleeder resistor is connected to this case with a high-voltage block. There is also proposed a case in which the resin is housed in a case and solidified by injecting an epoxy resin into the high-pressure block case.

[0005]

In the case of using the soft resin of the prior art described above, the Teflon mold 3 for attaching the soft resin 2 to the bleeder resistor 1 and solidifying it is used repeatedly. There is a problem that dimensional variations occur in the molded soft resin 2.

[0006] Further, the one disclosed in Japanese Utility Model Laid-Open Publication No. 2-72501 merely doubles the case, and the bleeder resistance case is used only for accommodating the bleeder resistance, and the case is made effective. Not what I use. Moreover, there is no disclosure of how to attach the bleeder resistance case to the high-voltage block case.

The work of attaching an external resistor such as a discharge resistor in addition to the bleeder resistor to the high-voltage resistor pack is cumbersome in the process and hinders reduction in the number of assembling steps and cost. Was. In addition, the outer shape is large, and the space efficiency is poor.

The present invention has been made in view of the above prior art, and provides a high-voltage resistance pack which has a simple structure, facilitates assembly work, has high reliability such as pressure resistance, and has a small external shape. With the goal.

[0009]

The present invention has an insulating main body case and a high-voltage resistor to which a high voltage is applied.
The high-voltage resistor is provided in the housing portion formed in said main body case comprises filling the insulating resin into the main body case, storage of the main body case houses the high-voltage resistor
A box-shaped inner case that is held inside the
The case has an opening on one side of the box.
Part is stored facing the bottom of the storage part,
Construct the circuit with the above high voltage resistor on the outer surface of the case
This is a high-voltage resistance pack formed with a holding portion for locking an electronic component such as a resistor.

[0010] Further, the present invention includes the above high voltage resistor.
A plurality of internal parts held in the storage part of the main body case
A case is provided, and the storage section stores a plurality of the inner cases.
Possible, on a plurality of adjacent sides of the body case
Along at least one of the plurality of inner cases.
On the outer surface, there is a resistor other than the above high voltage resistor inside
Forming a holding portion for locking the electronic component of
This is a high-voltage resistance pack in which the electronic components are locked .

[0011]

The high-voltage resistor pack of this invention has a high-voltage resistor attached to the housing of the main body case together with the inner case,
The box-shaped inner case reliably prevents discharge, and the electronic component holding portion facilitates and reliably attaches external electronic components, thereby facilitating work.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a high-voltage resistor pack 10 of this embodiment is a so-called focus pack for adjusting a focus voltage and a screen voltage of a CRT, and is made of a noryl resin or polybutylene terephthalate (PB).
A variable resistor or the like (not shown) is housed in a body case 11 made of an insulating resin such as T), and an insulating resin 15 such as an epoxy resin is injected to seal the opening side of the body case 11.

The main body case 11 has a storage section 12 for storing a high-voltage resistor 14 which is a bleeder resistance of the focus circuit. This high voltage resistor 14
Is formed with a resistor (not shown) from the high voltage side to the low voltage side on the surface of the substrate. The resistor is housed in an inner case 16 provided separately from the main body case 11 and is housed together with the inner case 16. It is stored in the unit 12.

As shown in FIGS. 2 to 5, the inner case 16 has an opening formed on one side of the box, and further has a pair of high-voltage resistors 14 held therein. The holding portion 17 is integrally formed, and the holding portion 17 includes
A groove 18 is formed to guide and house and hold the high voltage resistor 14. As shown in FIGS. 2, 4, and 5, the electronic component holding portion 2 protruding from the storage portion 12 of the main body case 11 is provided on the outer bottom surface of the inner case 16.
0, 21 and auxiliary pieces 22, 2 provided in the vicinity thereof.
3 are integrally formed. The holding portions 20 and 21 are formed with a U-shaped portion 24 having a bifurcated tip, and a resistor or the like can be held therebetween. The auxiliary pieces 22 and 23 are for fixing a lead wire from a resistor or the like, and have a small U-shaped portion 25 formed therein. Here, from the U-shaped portion 24 to the inner case 1
The distance to the surface of No. 6 is formed apart to prevent discharge.

An engagement piece 30 is integrally formed on one side surface of the inner case 16 so as to be able to engage with an engagement recess 31 formed in the side wall 13 of the storage section 12 of the main body case 11. Has become.

Further, the inner case 16 accommodates the high voltage resistor 14 therein, and further fills the space of the inner case 16 with a soft resin 26 such as an epoxy resin so as to cover the high voltage resistor 14. The high voltage resistor 14 is securely held and insulated in the inner case 16.

In the housing portion 12 of the main body case 11, an inner case 16 housing the high-voltage resistor 14 is provided with an engagement piece 30 in an engagement recess 31 provided in the side wall 13 of the housing portion 12. The internal case 27, which is inserted and attached and further provided with another high-voltage resistor, is attached to a predetermined position of the storage section 12. An electronic component 32 such as a discharge resistor of a capacitor (not shown) is fitted into the holding portions 20 and 21, and the lead wires thereof are fitted into the auxiliary pieces 22 and 23.

When the flyback transformer is attached later, the space inside the storage section 12 is filled with a hard insulating resin, and the inner case 12 is completely sealed. Here, the inner case 16 is locked in the engagement recess 31 of the main body case by the engagement piece 30,
Is located at a predetermined distance from the inner wall of the storage unit 12,
Discharge is reliably prevented.

In the high-voltage resistance pack of this embodiment, the electronic component holders 20 and 21 are formed in the inner case 16, so that
External components can be easily and reliably mounted, and the number of assembling steps and costs can be reduced. In addition, the high-voltage resistor 14 to which a high voltage is applied is housed in the inner case 16, and both the inner case 16 and the housing 1 of the main body case 11 are housed.
2, the withstand voltage performance is improved, and the reliability can be increased.

Next, another embodiment of the present invention will be described with reference to FIG.
The description will be made based on FIG.

In this embodiment, a pair of holding portions 42 for locking the terminals 34 of the electronic component 32 are formed on the side edges of the opening of the inner case 40. The inner case 40 has an opening opening in the opening of the storage section of the main body case, and is attached to the main body case in a direction opposite to the above embodiment.

This also makes it possible to easily and reliably mount the external electronic component 32.

Next, still another embodiment of the present invention will be described with reference to FIG.

In this embodiment, an external electronic component holding portion 46 is provided to extend to the side edge of the inner case 44 on the opening side. The inner case 44 is formed with a mounting projection 48 to be attached to the storage portion of the main body case, so that the positioning is reliably performed and the insulation interval is ensured.

This also makes it possible to easily attach external electronic components.

For filling the resin into the inner case, besides filling the high-voltage resistor with resin in advance, or filling the flyback transformer with the insulating resin for the flyback transformer after attaching it to the flyback transformer. It may be filled at the same time. As a result, the number of steps for filling the resin can be reduced.

The shape of the inner case of the present invention can be appropriately set in addition to the above embodiment. In addition to holding the entire high-voltage resistor in its storage space, only a part of the high-voltage resistor can be used. The internal case that holds it may be used.
Furthermore, the engaging piece for attaching the inner case to the main body case can also be formed in an appropriate shape, and the engaging portion on the main body case side may be any one that engages with each other in addition to the engaging concave portion. The position can also be set arbitrarily.

The high-voltage resistor can also be applied to various types, and the shape and application are not limited.

[0029]

[Effect of the Invention] The high-voltage resistor pack of the present invention of this invention temporarily holds the high-voltage resistor housed in the housing section in the main body case in the inner case, and also attaches the inner case to the housing section of the main body case. In addition to fixing, the internal case is formed with a holding part for external electronic components, and the external electronic parts are mounted on this holding part. ,
Costs can be reduced. Further, this makes the attachment position of the external component constant, thereby improving the stability and reliability of the device. In addition, the outer shape can be reduced, which contributes to downsizing of the device.

[Brief description of the drawings]

FIG. 1 is a plan view of a high-voltage resistance pack according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an inner case of the high-voltage resistor according to the first embodiment of the present invention;

FIG. 3 is a bottom view of the inner case of the embodiment.

FIG. 4 is a plan view of the inner case of this embodiment.

FIG. 5 is a cross-sectional view of the high-voltage resistance pack of this embodiment, taken on a plane including the high-voltage resistor surface;

FIG. 6 is a plan view showing an inner case of another embodiment of the present invention;

FIG. 7 is a perspective view showing an inner case of still another embodiment of the present invention;

FIG. 8 is a perspective view of a prior art high voltage resistor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 High voltage resistance pack 11 Main body case 12 Storage part 14 High voltage resistor 16, 40, 44 Inner case 20, 21, 42, 46 Holding part

Claims (2)

(57) [Scope of request for utility model registration] An insulative body case and a high-voltage resistor to which a high voltage is applied are provided in a housing formed in the body case, and the high-voltage resistor is insulated in the body case. A high-voltage resistance pack filled with a conductive resin, wherein an internal case is provided which houses the high-voltage resistor and is held in a storage portion of the main body case, and the internal case has an opening on one side surface of the box body. The opening is provided with the opening facing the bottom of the housing, and the outer case of the inner case is
A high-voltage resistor pack, comprising a holding portion for locking the high-voltage resistor and an electronic component constituting a circuit on a surface. 2. An insulative main body case and a high-voltage resistor to which a high voltage is applied. The high-voltage resistor is provided in a housing formed in the main body case, and is insulated in the main body case. In a high-voltage resistance pack filled with a conductive resin, a plurality of internal cases are provided which house the high-voltage resistor and are held in a storage portion of the main body case, and the storage portion is capable of storing a plurality of the internal cases. A holding portion is formed along a plurality of side surfaces of the main body case, and at least one of the outer surfaces of the plurality of inner cases has a holding portion for locking an internal electronic component other than the high-voltage resistor. And the above- mentioned
A high-voltage resistance pack, characterized by locking sub- parts .