JP2009117626A - High-frequency, high-voltage transformer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the distributed capacitance matter of a secondary winding by specified use of a honeycomb coil, to improve the geometrical size to a size for practical use, to make the secondary winding compact and lightweight by limited use, to reduce material amounts and a man-hour, and to reduce the cost. <P>SOLUTION: In the high-frequency, high-voltage transformer having a high-voltage side secondary winding 5 wound around an outer periphery of a low-voltage side primary winding 2, wound around a core 1, through an insulating layer 3 interposed therebetween, secondary divided windings divided into a plurality in an electrically series direction are formed into honeycomb coils in ring or collar shapes and in a common form and those honeycomb coils are connected in series at a posture such that an inner peripheral portion side is at a low potential, or the secondary divided windings divided into the plurality in an electrically parallel direction are formed into honeycomb coils in ring or collar shapes and in a common form and those honeycomb coils are connected in parallel at an attitude such that an inner peripheral portion side is at a low potential. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a high-frequency high-voltage transformer in which a high-voltage winding is formed of a plurality of honeycomb coils.

The conventional general high-frequency high-voltage transformer has the same basic form as the low-frequency low-voltage transformer, and is usually shown in FIGS. 3 to 5 of Patent Document 1 and FIG. 5 of Patent Document 2. As shown in the figure, the secondary winding on the high voltage side is concentrically wound around the outer periphery of the primary winding on the low voltage side wound around the core via the insulating layer. Is closely wound and has a large distribution capacity, which may cause inconvenience depending on the application. In this regard, the honeycomb coil that is known mainly for use in high-frequency circuits has an advantage that the distributed capacity is small (see Non-Patent Documents 1 and 2). It is convenient if available. However, if the conventional cylindrical secondary winding is simply changed to the honeycomb winding, the geometrical dimensions increase from the winding type, and there are many situations that cannot be used.
JP-A-5-129140 Japanese Patent Laid-Open No. 11-8136 "Electronic Communication Glossary", page 635, published by Corona Co., Ltd. (issued November 31, 1984) “Radio Engineering Glossary”, pages 14-18, published by Modern Science Co., Ltd. (issued September 15, 1978)

  Therefore, the present invention uses a honeycomb coil in a specific state in the secondary winding on the high voltage side to improve the distributed capacity by taking advantage of the honeycomb coil and suppress the disadvantage of the honeycomb coil. It is intended to improve the geometric dimensions to a form that can be used. And by further advancing this, the limited use of honeycomb coils enables further reduction of the overall size and weight of the high-frequency and high-voltage transformer, the amount of materials, the number of manufacturing steps, and the cost reduction, and further improvements are made. It is something to try.

  The high frequency high voltage transformer according to claim 1 of the present invention is the high frequency high voltage transformer in which the high voltage side secondary winding is wound around the outer periphery of the low voltage side primary winding wound around the core via an insulating layer. The secondary winding is divided into a plurality of parts in the electric series direction, and the divided windings are respectively formed into a honeycomb coil having a ring shape or a bowl shape and a common form. It is characterized by a series of windings electrically connected in series with each other in a low potential state.

  The high frequency high voltage transformer according to claim 2 of the present invention is the high frequency high voltage transformer in which the secondary winding on the high voltage side is wound around the outer periphery of the primary winding on the low voltage side wound around the core via an insulating layer. The secondary winding is divided into a plurality of parts in the electric parallel direction, and the divided windings are respectively formed into a honeycomb coil having a ring shape or a bowl shape and a common form, and these honeycomb coils are formed on the inner peripheral portion. It is characterized by a series of windings that are electrically connected in parallel to each other in a low potential state.

  In the high-frequency and high-voltage transformer according to the first aspect of the present invention, the secondary divided windings divided into a plurality in the electric series direction are respectively formed in a honeycomb coil having a ring shape or a hook shape and forming a common form. The honeycomb coils are connected in series in a low potential state on the inner peripheral side, and the high frequency high voltage transformer according to claim 2 according to the present invention includes a plurality of secondary divided windings each divided into a ring in the electrically parallel direction. Are formed in a honeycomb coil having a common shape or bowl shape, and these honeycomb coils are connected in parallel at a low potential state on the inner peripheral side. Can be used well, the advantages of the honeycomb coil can be fully demonstrated, the distribution capacity of the secondary winding can be reduced, and the disadvantages of the honeycomb coil can be suppressed and the geometric dimensions can be used. Obtained can be in the form, it can solve the problems described above.

  Furthermore, in the high-frequency and high-voltage transformer according to claim 2, by connecting in parallel, the potential difference between the primary winding and the primary winding can be minimized, the insulating layer between them can be thinned, and various points between the honeycomb coils can be obtained. Potential difference between zero and almost zero volts, and the distance between the honeycomb coils can be greatly reduced to zero or almost zero. Therefore, the entire transformer can be reduced in size and weight, and the amount of material such as the amount of insulation, iron, etc. Manufacturing man-hours can be reduced, and cost reduction can be realized.

  When a common terminal is provided in the center of the secondary winding, the common terminal is divided into two parts based on the common terminal, and each divided winding is formed into a honeycomb coil. When one or a plurality of intermediate taps are provided, they are divided corresponding to the intermediate taps, and the divided windings are respectively formed into honeycomb coils.

  When the honeycomb coils are electrically connected in parallel, the required voltage as the secondary winding is output from both terminals of all the honeycomb coils, but at this time, the wire cross-sectional area of the winding of each honeycomb coil is calculated. Let's divide by the parallel number.

  Further, when a plurality of secondary coils are provided, the same configuration is applied to each.

  If necessary, an appropriate number of electrical series connections and electrical parallel connections in the above-described honeycomb coil may be used together.

  1 to 3 show an embodiment of the high-frequency high-voltage transformer of claim 1 according to the present invention, and the illustrated one is a low-pressure cylindrical primary winding 2 wound around a core 1. In the high-frequency high-voltage high-voltage transformer in which the secondary winding 5 on the high-voltage side is wound around the outer periphery of the synthetic resin through the insulating layer 3 made of synthetic resin, the secondary winding 5 is divided into a plurality of parts in the electrical series direction. The windings are formed in common honeycomb coils 6, 7, and 8 having the same electromagnetic direction and the shape of a bowl, and the honeycomb coils 6, 7, and 8 are electrically connected to each other in a low potential state on the inner peripheral side. Are connected in series. That is, as shown in FIG. 2, for example, when the secondary winding 5 has three honeycomb coils 6, 7, and 8 and the output voltage is set to 15 [kV], the output voltage of each honeycomb coil 6, 7, and 8 is 5 [kV] is set to 15 [kV] by sequentially connecting them in series, and the inner ends of the honeycomb coils 6, 7, and 8 are set to a low potential in the series connection. Thus, if the inner end potential of the first stage honeycomb coil 6 is 0 [V], the inner end potential of the second stage honeycomb coil 7 is 5 [kV], and the third stage honeycomb coil 7. The inner end potential of 15 kV is 15 kV. In this case, the thickness A of the insulating layer 3 interposed between the honeycomb coils 6, 7, 8 of the secondary winding 5 and the primary winding 2 is used to prevent glow discharge or the like between the primary and secondary windings. And an interval B (crossover) between the honeycomb coils is set to an appropriate value sufficient to prevent the distributed capacity between the honeycomb coils. The honeycomb coils 6, 7, and 8 may be formed in a ring shape, and in any case, the inner and outer circumferences may be circular, elliptical, or the like. The core 1 may be a ferrite core.

  4 to 6 show an embodiment of the high-frequency high-voltage transformer according to claim 2 according to the present invention, and the illustrated one is a low-pressure cylindrical primary winding 2 wound around the core 1. In the high-frequency high-voltage high-voltage transformer in which the secondary winding 5 on the high-voltage side is wound around the outer periphery of the resin via the insulating layer 3 made of synthetic resin, the secondary winding 5 is divided into a plurality of parts in the electrically parallel direction. The windings are formed in common honeycomb coils 9, 10, 11 having the same electromagnetic direction and a saddle shape, and these honeycomb coils 9, 10, 11 are electrically connected to each other in a low potential state on the inner peripheral side. Are connected in parallel. That is, as shown in FIG. 5, for example, when the secondary winding 5 has three honeycomb coils 9, 10, and 11 and the output voltage is set to 15 [kV], the output voltages of the honeycomb coils 9, 10, and 11 are also set. Each of them is set to 15 [kV], and they are connected in parallel so that the inner ends of the honeycomb coils 9, 10, 11 are at a low potential in the parallel connection. By doing so, the inner end potentials of all the honeycomb coils 9, 10, and 11 become 0 [V]. Therefore, the potential difference between the inner peripheral portion of each honeycomb coil 9, 10, 11 that is the secondary winding 5 and the primary winding 2 is extremely small, and the thickness A of the insulating layer 3 between them can be made thin. become. Further, the potential difference between the honeycomb coils is zero volts to almost zero volts, and the distance B between the honeycomb coils can be remarkably reduced to zero to almost zero. By the way, by dividing the line cross-sectional area of the winding of each of the honeycomb coils 9, 10, 11 by the parallel number, the size thereof is substantially the same as that of each honeycomb coil in claim 1. In this embodiment, the honeycomb coils 9, 10, and 11 may be formed in a ring shape. In any case, the inner and outer circumferences may be circular, elliptical, or the like. Of course, the core 1 may be a ferrite core.

  Since the high-frequency and high-voltage transformer of the present invention is remarkably improved in its use, applicability, and economy, it can be widely used for various devices and can contribute to the development of a wide range of industries.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. It is explanatory drawing of the composition point which shows the high frequency high voltage | pressure transformer. It is an electric circuit diagram of the secondary winding which consists of a honeycomb coil of the high frequency high voltage transformer. It is a cutting front view which shows the high frequency high voltage | pressure transformer of Example 2 which concerns on this invention. It is explanatory drawing of the composition point which shows the high frequency high voltage | pressure transformer. It is an electric circuit diagram of the secondary winding which consists of a honeycomb coil of the high frequency high voltage transformer.

Explanation of symbols

1 Core 2 Primary Winding 3 Insulating Layer 5 Secondary Winding 6, 7, 8 Honeycomb Coil 9, 10, 11 Honeycomb Coil

Claims (2)

  In a high-frequency and high-voltage transformer in which a secondary winding on the high voltage side is wound around the outer periphery of the primary winding on the low voltage side wound around the core via an insulating layer, the secondary winding is divided into a plurality of electrical series directions. In addition, each of the divided windings is formed into a honeycomb coil having a ring shape or a saddle shape and a common form, and these honeycomb coils are electrically connected in series with each other at a low potential state on the inner peripheral side. A high-frequency, high-voltage transformer characterized by a series of windings.   In a high-frequency and high-voltage transformer in which a secondary winding on the high-voltage side is wound around the outer periphery of the primary winding on the low-voltage side wound around the core via an insulating layer, the secondary winding is divided into a plurality of electrical parallel directions. At the same time, the divided windings are formed in a honeycomb coil having a ring shape or a saddle shape and having a common form, and these honeycomb coils are electrically connected in parallel with each other in a low potential state on the inner peripheral side. A high-frequency, high-voltage transformer characterized by a series of windings.

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