JPS6334476Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The invention is applicable to windings that were not originally installed for the purpose of high voltage step-up, such as the stator winding of a generator or the winding of a low-voltage step-up transformer. A high-voltage generator that charges a capacitor with the low-voltage AC output from a wire (hereinafter referred to as a specific winding) and further boosts the voltage by using the discharge current from the capacitor to obtain the desired high-voltage AC output. This relates to improvements in equipment.

[Technical background of the invention and its problems] Conventionally, when boosting low voltage AC obtained through a generator with windings, a low voltage step-up transformer, etc. to a desired high voltage AC, it is necessary to Once a capacitor is charged with voltage alternating current, the charged charge is discharged to the primary winding of a transformer dedicated to high voltage step-up, which is separate from the windings of the generator, low voltage step-up transformer, etc. It was common practice to obtain the desired high voltage alternating current from the secondary winding.

However, since the high voltage step-up transformer requires many windings, it has a complicated and large structure, and as a result, the high voltage generator itself has the disadvantage of becoming complicated in structure. Therefore,
There has been a desire for an efficient high voltage generator with a simple structure.

[Purpose of the invention] The present invention has been made in view of this situation, and aims to provide a high voltage generator with a simplified structure by using the above-mentioned specific winding as a high voltage step-up winding. purpose.

[Summary of the invention] The outline of the invention for achieving the above object is that in a high voltage generator, at least a specific winding and a high voltage excitation winding are connected to one end of each winding. a power source section consisting of a generator wound around a common core; a capacitor charging section consisting of a diode and a capacitor and connected to both ends of the specific winding via charging terminals of a charging/discharging switching means; a high-voltage load section located between the specific winding and the capacitor charging section and connected to both ends of the specific winding via the discharging terminal of the charging/discharging switching means; and a charging output path of the capacitor charging section. and a discharging switching means provided between the other end of the high voltage excitation winding of the power supply unit and interlocking with the charge/discharge switching means, and the number of turns of the high voltage excitation winding is set to the number of turns of the high voltage excitation winding. The reason is that the number of windings is set to be less than the number of windings of the specific winding.

[Example of the invention] The invention will be described in detail below based on an example in which the stator winding of a generator is a specific winding.

Figures 1a and 1b show block diagrams of the high voltage generator according to the present invention, in which 1 is a power supply section, 2 is a high voltage load section, 3 is a capacitor charging section, 4 is a discharging switching means, and 5 is a high voltage generator. 1 and 2 respectively indicate charging/discharging switching means. (Incidentally, the same symbols in both figures indicate the same parts.) FIG. 5 shows details of a specific example of the basic structure of the power supply section 1 according to the present invention.

The figure shows a schematic configuration of a suitable generator, which has a rotor 6 and a yoke 8 attached to a rotating shaft 7 thereof. And yoke 8
A recess 81 for fitting the rotor 6 through the gap 9 is formed approximately at the center of the yoke, and a magnetic core 82 forming a part of the magnetic side path of the yoke is provided with a stator winding A and a high voltage. The excitation winding B is formed so as to be wound continuously.

In the power supply section 1 having such a configuration, since each winding has a common magnetic core part 82 as a magnetic side path in parallel with the rotor 6 and the gap 9, a large permeance can be obtained as seen from the A winding and the B winding. Accordingly, a large inductance can be obtained. this is,
This means that it is possible to reduce the overall number of turns of each winding.

FIG. 2 is a circuit configuration diagram of an embodiment using the method shown in FIG. High voltage excitation winding B for generating high voltage
(hereinafter referred to as winding B) is wound around a common core 8 with one end of both windings A and B connected to each other (common ground in the figure), and inductance L ₁ , L ₂ That's what I'm saying. In this embodiment, the A winding is the specific winding, and when charging the charging capacitor _C1 , which will be described later, the A winding is the specific winding.
The low-voltage AC output output from the winding is generated by the stator winding (A winding) when the rotor 6 of the generator in FIG. 5 is rotated by an appropriate driving force.
This is symbolically shown as the E signal in the figure.

Note that there is a resistance at one end of the A winding as an internal resistance.
_R1 are connected in series, and the number of turns of the A winding is n times the number of turns of the B winding.

The high voltage load section 2 is, for example, a discharge gap 2.
1, one end of which is connected to the discharge terminal c of the charging/discharging switching means 5, which will be described later, and the other end is connected to A.
Each is connected to the ground side terminal of the winding.

The capacitor charging section 3 is composed of a diode _D1 and a charging capacitor (hereinafter simply referred to as a capacitor) _C1 , and the diode _D1
The input end of the charge/discharge switching means 5, which will be described later, is connected to a charging terminal b, and the output end thereof (which is also the charging output path of the charging section 3) is connected to the capacitor _C1 .
Further, one end of the ground side of the capacitor _C1 is connected to the ground side terminal of the A winding.

The discharging switching means 4 is for applying the discharging output from the capacitor charging section 3 to the B winding, and is connected to manually operated switching pieces 41 and 2.
It consists of terminals d and e. One terminal d is connected to the output terminal of the diode D ₁ (which is also the charging output path of the charging section 3), and the other terminal e is connected to the other end of the B winding.

In this embodiment, appropriate means is set in advance so that the closing operation of the switching piece 41 and the switching operation of the switching piece 51 from the charging terminal b to the discharging terminal c in the charging/discharging switching means 5, which will be described later, are linked. It consists of

Now, the charge/discharge switching means 5 applies the low voltage AC output output from the A winding to the capacitor charging section 3 during charging, and applies the low voltage AC output from the A winding when discharging the capacitor _C1 . The circuit is switched so as to apply a high voltage induced AC output to the high voltage load section 2, and in this embodiment,
Switching piece 51 and three fixed and switching terminals a, b, c
It consists of

Next, the basic operation of the high voltage generator according to this embodiment will be explained.

[When charging the capacitor _C1 ] In this case, the discharging switching means 4
The switching piece 41 opens the terminals d and e, and the switching piece 51 of the charging/discharging switching means 5 short-circuits the fixed terminal a and the switching terminal b during charging, so that the low voltage alternating current generated in the A winding The output (symbolized by E) is connected to the capacitor through these terminals a, b and the diode _D1 .
It will be charged to _C1 .

[When exciting a high voltage (during discharge)] In this case, the switching piece 41 of the discharging switching means 4 is closed by manual operation, and the terminals d and e are closed.
short circuit. At this time, since the discharge current from the capacitor _C1 flows to the B winding through these terminals d and e, if the turns ratio between the A winding and the B winding is n, a voltage as high as n will be applied to the A. induced in the winding. and,
This induced high voltage output is applied to the discharge gap 21 of the high voltage load section 2, and a predetermined discharge is performed.

FIG. 3 is a circuit configuration diagram showing another example using the method shown in FIG.
two diodes connected in opposite directions
The circuit is constructed as an N-fold voltage rectifier circuit (N=1, 2, 3...) consisting of D ₁ and D ₂ and two charging capacitors C ₁ and C ₂ connected in parallel with each other, and the above-mentioned circuit consists of a switch mechanism. Instead of the charge/discharge switching means 5, a charge/discharge control means 5' using a choke coil _L3 is directly connected between the capacitor charging section 3 and the high voltage load section 2.

With this configuration, the frequency of the high voltage output induced by the discharge currents from the capacitors C ₁ and C ₂ becomes higher than the frequency of the power supply section 1 . As a result, it is possible to generate a high voltage to the high voltage load section 2 while preventing high voltage from being applied to the capacitor charging section 3.

FIG. 4 is a circuit configuration diagram showing a specific embodiment using the system shown in the block diagram of FIG. _1b . In the system of FIG. This method takes advantage of the fact that it is configured to be charged in waves, and is characterized in that it is implemented without using the charging/discharging switching means 5.

In this case, charging is performed only when a positive half wave is applied to the capacitor _C1 of the charging section 3,
The forward direction of the diode D1 and the A of the power supply section ₁ are connected so that it is not charged when a negative half wave is applied.
The winding direction and connection of the winding and B winding shall be set. That is, in this embodiment, the high voltage induced from the B winding is applied to the high voltage load section 2 so that it becomes negative.

In addition, in FIGS. 3 and 4, as the discharge switching means 4, a circuit constituted by a silicon symmetrical switch (SSS) element 4', which is a bidirectional thyristor, as shown in FIG. 6 is used. is also possible. Since this circuit is characterized by having static characteristics as shown in Figure 7, the same effect can be obtained by using other configuration means that can be made conductive by applying a specific voltage. .

Although several embodiments have been described above, it should be noted that the present invention is not limited thereto and can be modified in various ways without departing from the gist thereof.

[Effects of the invention] As described above, when using the invention, the A winding, which is a specific winding, is charged twice, once when charging the capacitor C ₁ , and when boosting the high voltage due to the discharging current of the capacitor C ₁ . “Dual-purpose benefits” used over several years
As a result, there is no need to use a high-voltage step-up transformer in addition to a low-voltage step-up transformer, unlike conventional equipment. Some engines are equipped with an ignition coil, but the present invention eliminates the need for such an ignition coil.

Therefore, it is possible to provide a high voltage generator that has characteristics and performance equivalent to those of conventional devices, but has a simple structure and can be made smaller.

[Brief explanation of the drawing]

Figures 1a and 1b are block diagrams of a high voltage generator showing an embodiment of the present invention, Figures 2 and 3 are circuit configuration diagrams of a specific embodiment using the system of Figure 1a, respectively. Fig. 4 is a circuit configuration diagram of a specific embodiment using the method shown in Fig. 1b, Fig. 5 is a structural plan view showing an example of a power supply unit according to the present invention, and Fig. 6 is a discharge switching according to the present invention. FIG. 7 is a partial circuit diagram showing another embodiment of the means, and FIG. 7 is a static characteristic diagram of FIG. 6. 1,100...Power supply section, 2...High voltage load section,
3... Capacitor charging section, 4... Discharge switching means, 4'... SSS element, 5... Charge/discharge switching means, 5'... Charge/discharge control means, 6... Rotor,
8...core (yoke), _L1 , _L2 ...inductance, _L3 ...chiyoke coil, A, B...winding,
D ₁ , D ₂ , ...diode, C ₁ , C ₂ , ... charging capacitor.

Claims (1)

[Claims for Utility Model Registration] (1) A high-voltage system that charges a low-voltage AC output to a capacitor and further boosts the voltage by using the discharge current from the capacitor to obtain the desired high-voltage AC output. A voltage generator includes a rotor rotatably attached to a yoke, and a generator equipped with a specific winding wound around the magnetic core of the yoke and a high-voltage excitation winding, and is driven by the generator. a power supply unit that obtains a low voltage AC output from the specific winding; a capacitor charging unit that includes a diode and a capacitor and is connected to both ends of the specific winding via charging terminals of the charge/discharge switching means; a high-voltage load section between the specific winding and the capacitor charging section and connected to both ends of the specific winding via the discharging terminal of the charging/discharging switching means; and a charging output path of the capacitor charging section. discharging switching means provided between the other end of the high voltage excitation winding of the power supply section and interlocking with the charge/discharge switching means; A high voltage generator characterized in that the number of windings is set to be less than the number of turns of the winding. (2) The high voltage generating device according to claim 1, wherein the charging/discharging switching means is a chiyoke coil whose impedance changes depending on the high induced voltage of the power supply section. (3) The high voltage generator according to claim 1 or 2, in which the capacitor charging section comprises a half-wave or N-fold voltage rectifier circuit (N=1, 2, 3...). (4) The high voltage generator according to any one of claims 1 to 3, wherein the discharge switching means is a bidirectional thyristor.