JPH06296393A - High-speed motor - Google Patents

Abstract

PURPOSE:To obtain a reluctance motor, a brushless motor and a stepping motor which have a high speed, a high torque and excellent efficiency. CONSTITUTION:At the time when electrification of one armature coil 32a is stopped through the intermediary of one switching element on the negative voltage side, magnetic energy is made to flow in a capacitor 46a of a small capacity, charged and held therein at a high voltage, and thereby a current is made to fall quickly and then made to rise quickly at the time of electrification of the next armature coil 32b. However, the rise of the electrification of the armature coil 32 is insufficient due to a copper loss and an iron loss of the armature coil, only with the static energy charged in a capacitor 46b. To cope with this, a chopper circuit is provided as an attachment. Thereby the magnetic energy of the armature coil is made to flow by a small quantity in the capacitor of the small capacity, accumulated and held therein so that the armature current may rise at a higher speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION It is used for increasing the speed of a well-known brushless motor and reluctance motor and preventing a decrease in output torque. It is also used as a high-speed stepping motor with a relatively large output. It is also used for general DC motors for the same purpose.

2. Description of the Related Art A reluctance type electric motor has the advantages that it has a large output torque and that a magnet rotor is not required, but on the other hand, it has many drawbacks, so there are few practical applications. The stepping motor having a high output is used only for a special purpose because of its low stepping speed. There is an example in which a high-speed rotating DC motor is used, but since the efficiency deteriorates, it is not widely used.

[0002]

[Problems to be Solved by the Invention]

First Problem Since the switching elements for controlling the energization of the armature coil are inserted at both ends of the armature coil, the number of expensive power elements increases and the cost increases. In addition, the switching element on the positive electrode side of the power source has a drawback that the input electric signal for controlling conduction becomes a separate power source and becomes expensive. Second problem In the case of a reluctance type electric motor, since the number of salient poles of the rotor is large and the inductance is large, the amount of magnetic energy accumulated or released in the magnetic poles and salient poles is large, and at each revolution. It accumulates and releases a lot. Therefore, although the output torque is large, there is a problem that the output torque is low. Even in the case of a DC motor, if the rotation is performed at high speed, the same problem as described above occurs. The above low speed is 3 per minute
00 rpm, or high speed, means 20,000 rpm. Third Problem In the case of an electric motor with a large output, the inductance of the armature coil is extremely large, so the current rises slowly at the beginning of energization, and the current drops when the energization is stopped. The former has a problem that the output torque is reduced, and the latter has a problem that counter torque is generated. When the power supply is set to a high voltage in order to speed up the rising at the beginning of energization, a sharp rising of the current occurs after the magnetic saturation point. For this reason, there is a problem that vibration and electric noise are generated, and the above-described section where the current rises is a section where the torque is small, so that only defects are promoted.
There is a problem that the speed increase (tens of thousands of revolutions per minute) becomes impossible due to the generation of the above-described torque reduction and counter torque. Even at a commonly used rotation speed (several thousands of revolutions per minute), there is a disadvantage that reduced torque and anti-torque are generated and efficiency is deteriorated. If a means for increasing the power supply voltage is used to increase the output torque, the voltage becomes 1000 V or more and the utility is lost.

[0003]

[Means for Solving the Problems]

First means In a multi-phase reluctance type electric motor including a fixed armature and a magnetic rotor, a plurality of salient poles arranged at an outer peripheral surface of the magnetic rotor at equal widths and at equal separation angles, and fixed. The magnetic poles projecting from the inner peripheral surface of the armature and located in axial symmetry have the same phase, face the salient poles with a slight air gap, are arranged at equal pitches, and are attached to the armature coil. 2n (n is a positive integer not less than 3) magnetic poles having a width in the circumferential direction of 120 to 180 degrees in electrical angle, and a plurality of phase armature coils mounted on the magnetic poles,
A position detection device that detects a rotational position of a salient pole to obtain position detection signals of a plurality of phases, one switching element that is inserted in a power supply negative electrode side of each armature coil, and a power supply positive electrode side of each armature coil. One first diode inserted in the forward direction, a DC power supply for supplying power to a series connection body of the diode, the armature coil, and the switching element, and a plurality of phase electric machines corresponding to a plurality of phase detection signals. An energization control circuit that conducts the switching element connected to the child coil by the width of the position detection signal to energize the armature coil to obtain the output torque, and when the switching element is converted to non-conduction at the end of the position detection signal, From the connection point between the switching element and the armature coil, the magnetic energy accumulated in the armature coil through the second diode flows into a small-capacity capacitor for charging and holding, The electric circuit that makes the current flowing through the armature coil drop rapidly, and the magnetic rotor rotates by a set angle, and the armature coil is energized via the switching element that is conducted by the position detection signal. When
Rise of the energizing current by causing the electrostatic energy accumulated in the small-capacity capacitor described above to flow from the connection point of the first diode and the armature coil through the semiconductor which is conducted in synchronization with the conduction of the switching element. And an electric circuit for making the armature coil rapid, a detection circuit for detecting that the energization current of the armature coil has increased beyond a predetermined value to obtain a detection electric signal, and a switching circuit connected to the armature coil by the detection electric signal. A chopper circuit that converts the element to non-conducting and keeps the conducting current at a predetermined value by making it conductive after a predetermined time, and a second diode when the switching element is converted to non-conducting during operation of the chopper circuit. Through an electrical circuit that flows magnetic energy into a small-capacity capacitor through the and sequentially charges and holds electrostatic energy corresponding to the chopper frequency. It made a certain thing.

Second Means In a multi-phase DC motor provided with a fixed armature and a magnet rotor, a plurality of N, S magnetic poles are alternately arranged with an equal width on the outer peripheral surface of the magnet rotor. The S magnetic pole and the N and S magnetic poles face each other with a slight gap therebetween and are arranged at an equal pitch.
3n (n is a positive integer) field magnetic poles having a width in the circumferential direction of the magnetic pole to which the armature coil is attached in the electrical angle range of 120 degrees to 180 degrees, and a plurality of phase magnetic poles attached to the magnetic poles. The position detection signal of the first phase of the rectangular wave having the phase difference of 360 degrees in the width of 120 degrees in terms of electrical angle and the first position detection signal as well as the first position are detected by detecting the rotational positions of the armature coil wound by the bilayer and the N and S magnetic poles. Has the same waveform and phase difference as the position detection signal of the first phase, and the phases are sequentially 12 electrical degrees from the position detection signal of the first phase.
A position detection device including a plurality of position detection elements that can obtain position detection signals of the second and third phases delayed by 0 degree; and one switching element inserted on the power supply negative electrode side of each armature coil, One first diode connected in the forward direction to the power supply positive electrode side of each armature coil, a DC power supply for supplying power to a series connection body of the diode, the armature coil, and the switching element; The switching elements connected to the biphasic wound armature coils of the first, second, and third phases corresponding to the position detection signals of the third phase are conducted to the armature coils by conducting for the width of the position detection signals. And an energization control circuit that obtains output torque by switching the switching element to the non-conductive state at the end of the position detection signal, from the connection point between the switching element and the armature coil, the armature coil through the second diode. The magnetic circuit that stores the magnetic energy stored in the armature into a small-capacity capacitor is charged and held, and the current flowing through the armature coil drops rapidly. Connection of the first diode and the armature coil through a semiconductor element that is conducted in synchronization with the switching element when energization of the armature coil is started through the switching element that is conducted by the detection signal. From the point, the electrostatic energy stored in the small-capacity capacitor described above is made to flow in to make the rise of the energizing current rapid, and it is detected by detecting that the energizing current of the armature coil has increased beyond a specified value. By converting the detection circuit for obtaining an electric signal and the switching element connected to the armature coil to the non-conduction state by the detection electric signal, and conducting the electric circuit after a predetermined time. A chopper circuit that holds an electric current at a predetermined value, and when the chopper circuit is in operation, when the switching element is turned into non-conduction, magnetic energy flows into the small-capacity capacitor through the second diode and the static electricity is generated. It is composed of an electric circuit for sequentially charging and holding electric energy corresponding to the chopper frequency.

Third means In a multi-phase reluctance type stepping motor having a fixed armature and a magnetic rotor, a plurality of protrusions arranged on the outer peripheral surface of the magnetic rotor at the same width and at the same pitch. The poles and the magnetic poles projecting from the inner peripheral surface of the fixed armature, which are in axial symmetry, have the same phase, and face the salient poles with a slight gap, and at the same time 2n (n is a positive integer of 3 or more) magnetic poles having a width of 180 electrical degrees, a plurality of armature coils mounted on the magnetic poles, and a predetermined time width,
A pulse oscillator and a pulse distributor for generating a multi-phase stepping electric signal composed of electric signals separated from each other by the same time width and electric signals arranged with a predetermined phase difference from the electric signals, and a power supply negative side of each armature coil. Power supply to the switching element inserted in the above, one first diode inserted in the forward direction on the power supply positive electrode side of each armature coil, and the series connection body of the diode, the armature coil and the switching element. An energization control circuit that obtains a stepping torque by energizing the armature coil by energizing the switching element connected to the corresponding multi-phase armature coil by the stepping electric signal by the DC power source and the multi-phase stepping electric signal. And when the switching element is turned off at the end of the stepping electrical signal, the switching element and the armature coil An electric circuit that causes the magnetic energy accumulated in the armature coil via the second diode to flow into a small-capacity capacitor and be charged and held therethrough, thereby rapidly reducing the current flowing through the armature coil; When the switching element connected to the armature coil is made conductive by the next incoming stepping electric signal to start energization, the first element is supplied via the semiconductor element which is made conductive in synchronization with the switching element. An electric circuit that causes the electrostatic energy accumulated in the small-capacity capacitor described above to flow from the connection point between the diode and the armature coil to make the rise of the energizing current rapid, and the energizing current of the armature coil exceeds a predetermined value. And a detection circuit that obtains a detection electric signal by detecting the increase,
A chopper circuit that holds the energization current at a predetermined value by converting the switching element connected to the armature coil to non-conduction by the detected electric signal and making it conductive after a predetermined time, and switching during operation of the chopper circuit. When an element is converted to non-conduction, it is composed of an electric circuit for injecting magnetic energy into a small-capacity capacitor through a second diode to sequentially charge and hold electrostatic energy corresponding to a chopper frequency. It was done.

[0006]

When the armature coil is energized by the width of the stepping electric signal or the position detection signal and the energization is stopped at its end, the magnetic energy accumulated in the armature coil flows into the small capacity capacitor and is charged to a high voltage. Becomes Therefore, the disappearance time of the magnetic energy is remarkably reduced, so that the generation of the anti-torque is prevented. Energization of the armature coil is started by the next position detection signal that arrives after a predetermined time.The applied voltage at this time is the sum of the charging voltage of the capacitor and the power supply voltage, so the energization current rises. Will be rapid. Therefore, the generation of torque reduction is prevented. As can be seen from the above description, there is an action of eliminating the drawback that the rotation speed of the reluctance type electric motor cannot be increased, and an action of solving the second and third problems.

Since the chopper circuit is additionally provided, there is the following operation in addition to the operation of holding the current value of the armature coil at a predetermined value. When the current value of the armature coil exceeds a predetermined value, the switching element connected to the armature coil is converted to non-conduction, so that a part of the magnetic energy of the armature coil is charged in the small-capacity capacitor. Therefore, electrostatic energy proportional to the chopper frequency is charged and held. The magnetic energy when the power supply is cut off at the end of the position detection signal is further added and the small capacity capacitor is charged. The electrostatic energy of this capacitor makes the rise of the current in the armature coil to be energized next quicker. When the magnetic energy moves between the armature coils, the iron loss of the magnetic poles and the copper loss of the armature coils cause the inconvenience that the rising of the current becomes slower in the middle. There is an effect that the current can be made to be close to a rectangular wave. This is especially effective when the power supply voltage is low. Since only one switching element for controlling the energization of the armature coil is inserted on the negative side of the power supply, the number of expensive circuit elements can be halved, and there is no switching element on the negative side of the power supply. Therefore, the circuit for controlling the conduction is simplified. Therefore, there is an action for solving the first problem.

[0008]

Embodiments of the present invention will be described with reference to FIG. Since the same symbols in the drawings are the same members, duplicate description thereof will be omitted. All subsequent angle displays will be displayed in electrical angles. Next, a configuration of a three-phase single-wave reluctance type motor to which the present invention is applied will be described. FIG. 1 is a plan view of a fixed armature and a rotor. In FIG. 1, symbol 1 is a rotor, and the salient poles 1a, 1b, ... Width is 180
, They are arranged at equal pitches with a phase difference of 360 degrees. The rotor 1 is made by a well-known means in which silicon steel plates are laminated. Symbol 5 is a rotation axis. The fixed armature 16 has magnetic poles 16a, 16b, 16c, 16d,
The widths of 16e and 16f are 180 degrees and are arranged at equal intervals. The salient poles and the magnetic poles have the same width of 180 degrees. The number of salient poles is 8 and the number of magnetic poles is 6.
The armature 16 is also made by the same means as the rotor 1.
The armature coils 17a, 1 are attached to the magnetic poles 16a, 16b ,.
7b, ... Are wound.

FIG. 3 is a development view of the magnetic pole and the rotor of FIG. In FIG. 1, the annular portion 16 and the magnetic poles 16a, 16
b, ... Are fixed armatures by being fixed to an outer casing (not shown). The part of symbol 16 is a magnetic core that serves as a magnetic path. The armature coils 17a and 17d are connected in series or in parallel, and this connected body is referred to as an armature coil 32a. The armature coils 17b and 17e and the armature coils 17c and 17f are similarly connected, and these are connected to the armature coils 32b and 32b, respectively.
It is called an armature coil 32c. When the armature coil 32b is energized, the salient poles 1b and 1f are attracted and the rotor 1 rotates in the direction of arrow A. When rotated by 120 degrees, the energization of the armature coil 32b is cut off, and the armature coil 32c is cut off.
Is energized. When the armature coil 32c further rotates 120 degrees, the energization of the armature coil 32c is cut off and the armature coil 32a is energized. The energization mode is cyclically changed every arm rotation of 120 degrees in the order of armature coil 32a-> armature coil 32b-> armature coil 32c, and is driven as a three-phase single-wave electric motor. At this time, the magnetic poles located at the axisymmetric positions are magnetized to the N and S poles as shown in the figure. Since the two excited magnetic poles are always of different polarities, the leakage magnetic fluxes passing through the non-excited magnetic poles are in opposite directions to each other, thus preventing generation of anti-torque.

In order to further reduce the above-mentioned leakage magnetic flux, two pairs of the first phase magnetic poles 16a and 16d are set, and the magnetic poles are energized to the N and S magnetic poles by energizing the armature coils. The leakage magnetic flux due to each pair of magnetic poles is canceled by the other magnetic poles and disappears, and the leakage magnetic flux is almost eliminated. Other magnetic poles 16b, 16c, ... 16f
Also has a set of two magnetic poles each, and a pair of magnetic poles is excited by the N and S poles. The effect is the same, and the leakage magnetic flux disappears. In this case, the number of salient poles a, 1b, ... Is 16. The output torque in this case is doubled. The armature coils 32a, 32b and 32c are respectively connected to the first, second and third arms.
It is referred to as a phase armature coil. The number of salient poles of the rotor 1 in FIG. 1 is eight, but even when the number of salient poles is four in order to reduce the diameter of the rotor 1, the number of magnetic poles is six. Figure 3
FIG. 2 is a development view of salient poles and magnetic poles of the electric motor of FIG. The coils 10a, 10b, 10c in FIG. 3 are position detecting elements for detecting the positions of the salient poles 1a, 1b, ..., and are fixed to the armature 16 side at the positions shown, and the coil surface has salient poles 1a. , 1b,
It faces the side surface of ... through a gap. Coil 10a,
10b and 10c are separated by 120 degrees. The coil is an air-core coil having a diameter of 5 millimeters and having about 100 turns. FIG. 7 shows a device for obtaining a position detection signal from the coils 10a, 10b, 10c. In FIG. 7, the coil 10a and the resistors 15a, 15b, 15c form a bridge circuit, and are adjusted so as to be balanced when not facing the coil 10a or the salient poles 1a, 1b, .... Therefore, the outputs of the low-pass filter composed of the diode 11a, the capacitor 12a and the diode 11b, the capacitor 12b are equal, and the output of the operational amplifier 13 is at a low level. Reference numeral 10 is an oscillator, which oscillates about 1 megacycle. The coil 10a has salient poles 1a, 1b, ...
, The impedance decreases due to iron loss (eddy current loss and hysteresis loss), so that the voltage drop of the resistor 15a increases and the output of the operational amplifier 13 becomes high level.

The input of the block circuit 18 is the time chart curves 33a, 33b, ... Of FIG. Block circuits 14a and 14b of FIG.
Shows the same configuration as the above-mentioned block circuit including the coils 10b and 10c, respectively. Oscillator 1
0 can be commonly used. Block circuit 14a
Of the block circuit 18 and the output of the inverting circuit 13b.
22 and their output signals are the inversions of the curves 34a, 34b, ... And the curves 34a, 34b ,. The output of the block circuit 14b and the output of the inverting circuit 13c are input to the block circuit 18,
These output signals are represented by the curves 35a, 3 in FIG.
5b, ... And an inverted version of this. Curve 33a,
The phases of the curves 34a, 34b, ... Are delayed by 120 degrees, and the phases of the curves 35a, 35b, ... are delayed by 120 degrees with respect to the curves 34a, 34b ,.
The block circuit 18 is a circuit commonly used in a control circuit of a three-phase Y-type semiconductor motor, and is a rectangular wave electric signal having a width of 120 degrees from the terminals 18a, 18b, ..., 18f by the input of the position detection signal described above. Is a logic circuit that can be obtained. The outputs of the terminals 18a, 18b, 18c are as shown in FIG.
Curves 36a, 36b, ..., Curves 37a, 37, respectively
b, ..., Curves 38a, 38b ,.
The outputs of the terminals 18d, 18e and 18f are the curves 4 respectively.
3a, 43b, ..., Curves 44a, 44b, ..., Curve 45
a, 45b, ... Terminals 18a and 18
d output signal, terminals 18b and 18e output signal, terminal 1
The phase difference between the output signals of 8c and 18f is 180 degrees. The output signals from the terminals 18a, 18b and 18c are 12 in sequence.
The output signals of the terminals 18d, 18e, and 18f are also sequentially delayed by 120 degrees. Coils 10a, 1
In place of the facing salient poles 1a, 1b ... Of 0b, 10c, an aluminum plate of the same shape that rotates synchronously with the rotor 1 of FIG.

The energizing means of the armature coil will be described below with reference to FIG. Transistors 20a, 20b and 20c are inserted at the lower ends of the armature coils 32a, 32b and 32c, respectively. Transistors 20a, 20
b and 20c serve as switching elements and may be other semiconductor elements having the same effect. DC power supply positive / negative terminal 2
Power is supplied from a and 2b. In this embodiment, since the transistors 20a, 20b, 20c are located at the lower end of the armature coil, that is, the power supply negative electrode side, the input circuit for conduction control thereof is characterized by being simplified. FIG. 8 shows a conventionally well-known means in which transistors 19a, 19b, ... Are inserted at both ends of the armature coils 6a, 6b. Therefore, the number of transistors is twice that of the armature coil. The transistors 19a, 19b, ... Are expensive because they serve as power elements, and the transistors 19a, 19c on the positive electrode side of the power source require a separate power source when conducting control by inputting the terminals 19-1, 19-2. This circuit is expensive. There are two drawbacks mentioned above. According to the device of the present invention, this drawback is eliminated. When the armature coil is energized, its rise is delayed due to its large inductance, and when the energization is stopped, the stored magnetic energy flows back to the power supply side through the diodes 6c and 6d, but the current also drops at this time. . This reduces rotation speed and efficiency. Increasing the power supply voltage eliminates the above-mentioned inconvenience, but 1Kw
When the output is 10,000 revolutions / minute, the applied voltage becomes 1000 V or more, which is impractical. The present invention also eliminates such drawbacks.

Next, details will be described with reference to FIG. Terminal 4
2a, 42b, 42c, position detection signal curves 36a, 36b, ..., Curves 37a, 37b ,.
8a, 38b, ... Are input. The above-mentioned input signal causes the transistors 20a, 20b, 20c to obtain a base input via the AND circuits 24a, 24b, 24c and become conductive, and the armature coils 32a, 32b, 32c are energized. Terminal 40 is a reference voltage for designating the armature current. The output torque can be changed by changing the voltage of the terminal 40. When a power switch (not shown) is turned on, the input of the + terminal of the operational amplifier 40a is lower than that of the-terminal, so the output of the operational amplifier 40a becomes low level, and the input of the inverting circuit 28b is also low level, so its output is high level. And transistor 20
When a is conductive, a voltage is applied to the armature coil energization control circuit. The resistor 22a includes armature coils 32a and 32a.
It is a resistor for detecting the armature currents of b and 32c. The block circuits G and H are electric circuits for controlling energization of the armature coils 32b and 32c, and have the same configuration as the energization control circuit of the armature coil 32a. Transistor 20
Only the diodes a and the diodes 49b and 49c corresponding to the diode 49a and the transistors 20b and 20c are added to the block circuits G and H.

One of the position detection signal curves described above is shown in FIG.
The curve 36a is shown in the first row of the time chart of FIG. In FIG. 8, the armature coil is energized by the width of the curve 36a. The arrow 23a indicates a conduction angle of 120 degrees. At the beginning of energization, the rise of the armature coil is delayed due to the inductance of the armature coil, and when the energization is cut off, the accumulated magnetic energy is discharged back to the power source through the diodes 6c and 6d in FIG. Curve 2 on the right side of J
It descends like the latter half of 5. Since the section where the positive torque is generated is the section of 180 degrees indicated by the arrow 23, the counter torque is generated and the output torque and the efficiency are reduced. At high speeds, this phenomenon becomes extremely large and unusable.

This is because the time width of anti-torque generation does not change even at high speeds, but the time width of the positive torque generation section 23 decreases in proportion to the rotation speed. The same applies to the energization of the armature coil by the position detection signals 36a, 37a, 38a shown in FIG. Since the rising of the curve 25 is delayed, the output torque is reduced. That is, a reduction torque is generated. This is because the magnetic path is closed by the magnetic poles and the salient poles, and thus has a large inductance. The reluctance type electric motor has the advantage of generating a large output torque, but has the drawback of not being able to increase the rotation speed because of the above-described generation of the counter torque and the reduced torque. The device of the present invention comprises a diode 49a for preventing backflow and a capacitor 41a having a small capacity shown in FIG.
And the diodes 49a, 49b, 21a and the semiconductor elements 4a, 4b, 5a, etc. are attached to eliminate the above-mentioned defects,
Also, a switching element for controlling energization of the armature coil (symbol 2
0a, 20b, 20c) is used only on the negative voltage side of the power supply. When the energization is cut off at the end of the curve 36a, the magnetic energy accumulated in the armature coil 32a is changed by the backflow prevention diode 49a.
Do not return to the DC power supply side, through the diode 21a,
The capacitor 41a is charged to the polarity shown in the figure to make it a high voltage. Therefore, the magnetic energy disappears rapidly and the current drops rapidly.

The first stage curve 2 of the time chart of FIG.
7, 27a and 27b are current curves flowing through the armature coil 32a, and the distance between the dotted lines on both sides is 120 degrees. The energized current rapidly drops as shown by the curve 27b to prevent the generation of anti-torque, and the capacitor 41a is charged to a high voltage and held. Next, the position signal curve 36b causes the transistor 20a to conduct and the armature coil 32a to conduct again. The applied voltage at this time is both the charging voltage of the capacitor 41a and the power supply voltage (voltages of the terminals 2a and 2b). Therefore, the current of the armature coil 32a rises rapidly. Due to this phenomenon, it rises rapidly as shown by the curve 27.
The rising energization curve 27 becomes slower to rise as shown in the figure in the middle. This is because when the magnetic energy moves between the armature coils, it is converted into heat energy by the copper loss of the coils and the iron loss of the magnetic poles and disappears. Means for removing such inconvenience will be described later. As described above, the generation of the reduced torque and the counter torque is eliminated, and the current is supplied in the shape of a rectangular wave, so that the output torque is increased. SCR (controlled rectifying element) 5a and transistors 4a, 4b in the case described above
The action of will be described below. When the position detection signal is input to the terminal 42a, the transistor 20a becomes conductive. At this time, the position detection signal is also input to the block circuit 4. The block circuit 4 includes a differentiating circuit and a monostable circuit, and the monostable circuit is energized by the differential pulse at the leading end of the position detection signal, and the transistor 4 is output by outputting an electric pulse of a set width.
b and 4a are conducted by that width. Therefore, the gate current of the SCR 5a is obtained and becomes conductive. Therefore, the capacitor 41a
+ Pole → SCR5a → armature coil 32a → transistor 20a → diode 21d → negative pole of capacitor 41a. With the end of discharge, SCR5a,
The transistors 4a and 4b are turned off.

Next, the chopper circuit will be described. When the current of the armature coil 32a increases and the voltage drop of the resistor 22a for detecting the armature coil 32a increases and exceeds the voltage of the reference voltage terminal 40 (the input voltage of the negative terminal of the operational amplifier 40a),
Since the output of the operational amplifier 40a is converted to high level,
A differential pulse is obtained from the differentiating circuit 40b, and the monostable circuit 2
By energizing 8a, a pulse electric signal having a predetermined width is obtained.
Since the output of the inverting circuit 28b is converted to the low level by that width, the output of the AND circuit 24a also becomes the low level by the same width, and the transistor 20a is also converted to the non-conduction by that width. Therefore, the current in the armature coil (armature current) drops and charges the capacitor 41a via the diode 21a. When the output signal of the monostable circuit 28a disappears, the outputs of the inverting circuit 28b and the AND circuit 24a are converted to the high level again, the transistor 20a becomes conductive, and the armature current starts to increase. When the armature current exceeds the set value, the output of the operational amplifier 40a is converted to the high level again, the transistor 20a is converted to the non-conductive state by the output pulse width of the monostable circuit 28a, and the armature current drops. The chopper circuit repeats such a cycle, and the armature current has a current value regulated by the voltage of the reference voltage terminal 40. A curve 27a in FIG. 21 shows a chopper-controlled current. The constant speed control can also be performed by a known means for controlling the voltage of the reference voltage terminal 40 with a voltage proportional to the rotation speed.

When there is the above-mentioned chopper action, the capacitor 41a is provided as many times as the number of output pulses of the monostable circuit 28a.
Is repeatedly charged, the voltage rises, and electrostatic energy is accumulated. At the end of the position detection signal, the transistor 20a
Is turned off, all the magnetic energy of the armature coil 32a is charged in the capacitor 41a. The electrostatic energy corresponding to the chopper frequency and the fall time of the armature current is further added to the electrostatic energy of the capacitor 41a. The electrostatic energy raises the current when the armature coil 32a is next energized, so that the energy loss due to the copper loss of the armature coil and the iron loss of the magnetic poles can be compensated. Therefore, the armature current rises rapidly as shown by the dotted curve 27c in the first stage of FIG. 21, becomes almost a rectangular wave, and has the effect of increasing the output torque.
It is necessary to adjust the capacitance of the capacitor 41a, the frequency of the chopper current, and the output pulse width of the monostable circuit 28a so as to have the above-mentioned effects. Armature coils 32b, 32
c is also an AND circuit 24b, 24c, a transistor 20b,
20c also performs chopper control of the armature current. Further, the block circuits G and H perform energization control for making the rise and fall of the armature current rapid.

The energization of the armature coil may be carried out at any point within a range of 30 degrees from the point where the salient pole enters the magnetic pole. Adjustment is performed in consideration of the rotation speed, efficiency, and output torque, and the positions of the coils 10a, 10b, and 10c serving as position detection elements fixed on the fixed armature side are changed. As can be understood from the above description, the object of the present invention is achieved because a large output and high speed rotation can be efficiently performed as a three-phase single-wave electric motor. In the case of three-phase full-wave energization, the same purpose can be achieved by constructing each one wave by the above-mentioned means. The details will be described later. The first curve 26a in FIG. 21,
Numerals 26b and 26c show the energization curves of the armature coils, the distance between the dotted lines 26-1 and 26-2 is 120 degrees of the position detection signal, the distance between the dotted lines 26-1 and 26-3 is 180 degrees, and the output torque is It is a section with. Curves 9a, 9b, 9c are output torque curves, and the energization is started at the point indicated by the dotted line 26-1, and at the same time, the salient pole begins to enter the magnetic pole. The curve 9a is flat when the current in the armature coil is small, but the torque is flat, but the torque peak value moves to the left as shown by the curves 9b and 9c, and the width of the peak value also narrows. .
The position detection coil 10a, the point where the energization is started is set at an intermediate point between the points where the salient pole enters the magnetic pole by 30 degrees in consideration of the torque characteristics and the value of the energized current described above.
It is preferable to adjust the fixed positions of 10b and 10c. Since the charging voltage of the capacitor 41a is higher when the capacitance is smaller, the rising and falling of the energization curve can be made rapid, and a high-speed motor can be obtained. The defects can be eliminated. It is preferable to use a capacitor having a small capacity as long as the charging voltage does not damage the transistor of the circuit. The present invention can be implemented by removing the capacitor 41a and providing a small-capacity capacitor 47a as shown by a dotted line instead. The effect is the same. In the case of a two-phase electric motor, armature coils K, L, which will be described later with reference to FIG.
For M and N, the present invention can be implemented by using the energization control circuit by the same means as in this embodiment.

Next, a case where the present invention is applied to a three-phase full-wave electric motor will be described. 2 is a plan view and FIG. 4 is a development view. 2 and 4, the magnetic rotor 1 fixed to the rotary shaft 5 includes a salient pole 1 having a width of 180 degrees and an equal separation angle.
a, 1b, ... 10 are provided. The fixed armature 16 includes a magnetic pole 16 having a width of the bonded portion of the armature coil of 120 degrees.
12 pieces of a, 16b, ... Are arranged at the same pitch. The armature 16 is fixed inside the outer casing 9, and the rotary shaft 5 is rotatably supported by bearings provided on the side plates on both sides of the outer casing 9. Armature coils 17a, 17b, ... Are attached to the magnetic poles 16a, 16b ,. The position detecting coils 10a, 10b and 10c are fixed to the armature 16 side at the position shown in the figure with a distance of 120 degrees from each other, and the salient poles 1a,
It faces the side surfaces of 1b, .... Coils 10a, 10
The electric circuit for obtaining the position detection signal from b and 10c is the electric circuit of FIG. 7 described above, and the position detection signal shown by each curve of the time chart of FIG. 22 can be obtained.

Each magnetic pole is excited by an armature coil into N and S magnetic poles as shown in the figure. Armature coil 17a, 1
The 7g connected in series or in parallel is referred to as an armature coil 32a. Other armature coils 17b, 17h,
Armature coils 17c and 17i, armature coils 17d and 1
7j, armature coils 17e, 17k, armature coil 17
Those connected in the same manner as f and 17l are referred to as armature coils 32b, 32c, 32d, 32e and 32f, respectively. Position detection signal curves 36a, 36b, ..., 3 in FIG.
, 7a, 37b, ..., 38a, 38b, ... Energize the armature coils 32a, 32b, 32c by the width thereof,
Position detection signals 43a, 43b, ..., 44a, 44b,
, 45a, 45b, ... When the armature coils 32d, 32e, 32f are energized by their widths, respectively, the rotor 1 rotates in the direction of arrow A as a three-phase full-wave energizing motor. The above-described energization mode can also be expressed as follows. The armature coils 32a, 32b, and 32c are referred to as armature coils of the first, second, and third phases, and the armature coils 32d, 32e, and 32f are the first and the first , respectively .
2 , referred to as a third- phase armature coil. Both are energized with a single wave. The 1-phase armature coil is the first
Is composed of an armature coil of the first phase, the armature coils 2, 3-phase, second respectively, the second phase of the armature coil 3, composed of an armature coil of the third phase. Position detection signal curves 36a, 36b, ..., 37a, 37b ,.
38a, 38b, ... Are referred to as position detection signals of the first, second, and third phases, respectively, and position detection signal curves 43a, 43
b, ..., Curves 44a, 44b, ..., Curves 45a, 45b
Are referred to as position detection signals of the first , second and third phases, respectively. The armature coils 32a, 32b, 32c of FIG.
The energization control circuit corresponds to the one-wave energization in the case of the three-phase full-wave energization described above. The block circuit I is an energization control circuit for the armature coils 32d, 32e, 32f and is a circuit similar to the armature coils 32a, 32b, 32c. ,,, curves 44a, 44b, curve 45
, 45b, ..., The armature coil is energized by the width of each curve, and the operational amplifier 40a and the reference voltage terminal 4
A chopper circuit controlled by a similar circuit including 0 is provided to set the armature current to the set value. As can be seen from the above description, the motor becomes a three-phase full-wave energizing motor, the rising and falling of the energizing current becomes rapid, and the efficiency is high at high speed.
There is an effect that an electric motor with less ripple torque can be obtained.

Next, a three-phase full-wave energizing motor will be described with reference to the embodiment shown in FIG. In FIG. 9, terminals 42a, 4
From 2d, the electric signals of the position detection signal curves 36a, 36b, ... And the curves 43a, 43b ,. Therefore, the armature coils 32a and 32d are energized with a width of 120 degrees and a phase difference of 180 degrees. Reference voltage terminal 40,
Operational amplifier 40a, differentiating circuit 40b, monostable circuit 28
a, the inverting circuit 28b, and the AND circuits 24a and 24b are shown in FIG.
Similar to the case of 3, the circuit becomes a chopper circuit and holds the armature current at the set value. When the armature coil 32a is de-energized, the stored magnetic energy flows into the small-capacity capacitor 47a via the diodes 21a and 21d, is charged and charged, and is held at a high voltage. When the rotor rotates 60 degrees, energization of the armature coil 32d starts, but at this time, the SCR
Since 5a and the transistors 4a and 4b become conductive, the high voltage of the capacitor 47a is applied to make the rise of the energization current rapid. When the energization of the armature coil 32d is cut off, the stored magnetic energy is stored in the capacitor 47a by the diode 21.
When the armature coil 32a is next energized and held, the capacitor 4 is charged.
The high voltage of 7a makes the rise of the energization of the armature coil 32a rapid through the block circuit 32. Block circuit 4
Is the same circuit as that of the same symbol in FIG. 13, so that when the transistor 20b is turned on and the energization of the armature coil 32d is started, the transistors 4a, 4b,
It is possible to make the SCR 5a conductive and discharge the capacitor 47a so that the rise of the energizing current can be made rapid. The block circuit 32 has the same configuration as the circuit of the SCR 5a and the transistors 4a and 4b, and is energized by the input signal of the terminal 42a. Discharge through the armature coil 32a to make the rise of the energized current rapid. Therefore, there is an effect that the generation of the counter torque and the reduction torque is prevented.

While the current is controlled by the chopper circuit, the transistors 20a and 20b are repeatedly turned on and off as in the previous embodiment. Therefore, the magnetic energy of the armature coils 32a and 32d is converted into electrostatic energy by charging the capacitor 47a little by little. This electrostatic energy compensates for the energy loss due to copper loss and iron loss when the magnetic energy moves between the armature coils, so the rise of the armature current is made rapid to make the current flow close to a rectangular wave and reduce the torque at high speed. There is an effect that an electric motor without The block circuits B and C include the armature coil 3
2b, 32e and the armature coils 32c, 32f are energized,
Input to the terminal 42b (curves 37a, 37b, ... of FIG. 22)
Input of terminal 42e (curves 44a, 44b, ...) Terminal 42
c) (curves 38a, 38b, ...) Terminal 42f (curves 45a, 45b, ...)
The structure is the same as that of the armature coils 32a and 32d.
The armature current chopper circuit has the same configuration. Therefore, the effect is the same. In the time chart of FIG. 21, curves 31a, 31b, 31c are energization curves of the armature coils 32a, 32d formed by the position detection signal curves 36a, 36b, ... And the curves 43a ,. Curve 31d,
Similarly, 31e is a current-carrying curve of the armature coils 32b and 32e. The curves 31f, 31g, 31h also show the energization curves of the armature coils 32c, 32f. The transistors 20a and 20b in FIG. 9 may use power elements such as IGBTs in the case of a motor having a large output. The chopper circuit may be other means as long as it achieves the same purpose.

Next, referring to FIG. 15, an embodiment of an energization control circuit in the case of three-phase single-wave energization according to the present invention will be described. Terminal 42
The position detection signals of a, 42b, 42c are input to the curves 36a, 36b, ..., Curves 37a, 37 of FIG. 22, respectively.
b, ..., Curves 38a, 38b ,. The armature coils 32a, 32b, 32c are sequentially energized with a width of 120 degrees. Operational amplifier 40a, differentiating circuit 40b,
The resistor 22a, the reference voltage terminal 40, and the like are the same members as the members having the same symbols in the previous embodiment, and serve as a chopper circuit that holds the armature current at a set value. When the energization of the armature coil 32a, which is energized by the input of the terminal 42a, is cut off, the stored magnetic energy charges the capacitor 47a having a small capacity to a high voltage through the diodes 21a and 21d to the polarity shown. At this time, the transistor 20a is kept non-conductive. When the rotor rotates 240 degrees, the input of the terminal 42c causes the transistor 20c to conduct and the armature coil 32c to start energizing.
Is conducted, the high voltage of the capacitor 47a is applied, and the conduction current rises rapidly. Capacitor 47a
The smaller the capacitance is, the more rapidly the current rises, but since it is charged to a high voltage, it is necessary to use a small-capacity capacitor in consideration of the withstand voltage of other semiconductor elements. Capacitor 4
The discharge current of 7a is generated through the armature coil 32c, the transistor 20c, the resistor 22a, and the diode 21g. When the transistor 20a is turned off,
The magnetic energy stored in the armature coil 32a is transferred to the capacitor 47 via the diodes 21a, 21d and the SCR 23a.
Charge a to a high voltage. Since the position detection signal of the terminal 42a is input to the gate of the SCR 23a and the SCR 23a is in the conductive mode, the magnetic energy of the armature coil 32a is accumulated in small amounts in the capacitor 47a when the transistor 20a is turned on and off to cause a chopper action. It However, as will be described later, when the capacitor 47b is charged to a high voltage, the electric charge is stored in the armature coil 32a and the diode 21a.
The capacitor 47a is charged via the
Electrostatic energy of 7b is released, but at this time SCR
Since 23a has been converted to non-conductivity, it is possible to prevent discharge.

When the transistor 20c is conductive, the SCR 23c is conductive because the input signal of the terminal 42c is input to the gate of the SCR 23c. Therefore, the capacitor 47c is connected to the armature coil 32c in the section having the chopper action.
A small amount of magnetic energy flows in and is stored as electrostatic energy. When the energization of the armature coil 32c is cut off, the stored magnetic energy charges the capacitor 47c via the diodes 21c and 21f and holds it at a high voltage. When the rotor rotates 240 degrees, the input from the terminal 42b causes
Although the transistor 20b is turned on to start energizing the armature coil 32b, the high voltage of the capacitor 47c is applied to the armature coil 32b, and the energization current rises rapidly. The discharge current at this time passes through the diode 21i.

When the energization of the armature coil 32b is cut off,
The capacitor 47b is charged to a high voltage via the diodes 21b and 21e. When the rotor rotates 240 degrees, the transistor 20a becomes conductive due to the input of the terminal 42a, so that the high voltage of the capacitor 47b causes the armature coil 32 to rotate.
A is energized via the diode 21h. The rising of the energizing current of the armature coil 32a becomes rapid. When the energization of each armature coil is cut off, the magnetic energy flows into and charges the corresponding small-capacity capacitor, so that the energization current drops rapidly. As can be seen from the above description, a reduction torque and a counter torque are prevented from occurring, a high-speed and high-efficiency electric motor is obtained, and only one expensive power element is inserted on the negative electrode side of the armature coil. Then, the object of the present invention is achieved. The armature coils 32c, 32a, 32 are respectively caused by the high voltages of the capacitors 47a, 47b, 47c.
The rise of energization of b becomes rapid. SCR 23a, 23
The terminals 42a, 42b, and
The input signal (position detection signal) of 42c is input.
Therefore, when the transistors 20a, 20b, 20c are on / off controlled by the chopper control, the capacitors 47a, 47b, 47c correspond to the chopper frequency by small amounts of the magnetic energy of the corresponding armature coils. Inflow is charged. Therefore, there is an effect that the rising of the armature current becomes more rapid by compensating for the energy loss due to the copper loss and the iron loss generated when the magnetic energy moves between the armature coils.

Capacitors 46a, 46b, 46 connected by dotted lines by removing capacitors 47a, 47b, 47c
The same purpose is achieved by providing c. The same applies to the other embodiments described above, but with the diodes 49a, 49b, 49c.
Is for preventing the power supply side from being energized by the high voltage of the capacitors 47a, 47b, 47c. Three
A block circuit D is added in the case of dual-phase energization.
The block circuit D includes armature coils 32d, 32e, 32f.
It has the same configuration as the above-mentioned circuit for controlling the energization of. The terminals 42d, 42e, and 42f are respectively shown in FIG.
Position detection signal curves 43a, 43b, ... And the lower two
The electric signal of the series curve is input, and 1 is input to each armature coil.
It is configured to energize with a width of 20 degrees. The chopper circuit is also attached independently. With the above configuration, a three-phase full-wave energized reluctance type electric motor that achieves the object of the invention can be obtained.

FIG. 16 shows an embodiment in which a part of the circuit of FIG. 15 is changed. At the end of the position detection signal, the transistor 2
0a, 20b, 20c are converted to non-conducting, the capacitors 41a, 41b, 41c are respectively connected to the diode 21.
It is charged and held at a high voltage via a, 21b, and 21c. At this time, the transistors 4a, 4b, 4b, and 4b are activated by being urged by an electric pulse of a predetermined width (obtained by the block circuit 4 having the same configuration as the block circuit 4 of FIG. 9) obtained at the beginning of the input position detection signal of the terminal 42c. When the SCR 5a is turned on, the high voltage of the capacitor 41a changes the armature coil 32c.
Is applied to make the rise of current rapid. At this time, the transistor 20c is conducting. Transistor 4b,
The base terminals 4-2 and 4-3 of 4c are supplied with the electric pulse of the starting end portion of the input position detection signals of the terminals 42a and 42b obtained by the same means, so that the SCRs 5b and 5c are equal to the width of the electric pulse. Conduct. Therefore, due to the high voltage of the capacitors 41b, 41c, the armature coils 32a, 3
The rising of the power supply of 2b becomes rapid. The operation of the chopper circuit is similar to that of FIG. Therefore, the same energization control as in FIG. 15 is performed, and the object of the present invention is achieved.

The armature coils 32d, 3 of the block circuit D
The energization control of 2e and 32f is performed by the armature coil 32 described above.
It is the same means as a, 32b, 32c. Therefore 3
Phase full-wave energization is achieved and the object of the present invention is achieved. The charging means using magnetic energy when the energization of the corresponding armature coils of the capacitors 47a, 47b, 47c of FIG. 17 and the capacitors 46a, 46b, 46c substituted for them is cut off is the same as that of FIG. The means for energizing the armature coils to discharge the capacitors 47a, 47b, 47c charged to a high voltage is the same as in FIG. An electric pulse at the starting end of the input position detection signal from the terminal 42c is input to the base terminal 4-1 of the transistor 4b, and the transistors 4b, 4a, and SCR 5a are made conductive by the width thereof. Therefore, the rise of energization of the armature coil when the transistor 20c becomes conductive is made rapid. Block circuit 58
Also, a and 58b have the same configuration as the drive circuit of the SCR 5a described above, the block circuit 58a is made conductive by the electric pulse of the starting end portion of the input signal of the terminal 42a, and the block circuit 58b is connected to the input signal of the terminal 42b. The electric pulse at the leading end causes conduction by that width. Therefore, the rise of energization of the corresponding armature coil is made rapid. The chopper circuit also has the same operation as the previous embodiment. The block circuit D has the same situation. Therefore, the object of the present invention is achieved.

The technique of the present invention can be applied to a two-phase full-wave electric motor. The details will be described below. A plan view in this case is omitted, but a development view is shown in FIG. In FIG. 5, the annular portion 16 and the magnetic poles 16a, 16
b, ... Are made by well-known means for stacking silicon steel plates, and fixed to an outer casing (not shown) to form an armature. Symbol 1
A portion 6 is a magnetic core that serves as a magnetic path. Magnetic poles 16a, 16
Armature coils 17a, 17b, ... Are wound around b ,. On the outer peripheral portion of the rotor 1, salient poles 1a, 1b, ...
And magnetic poles 16a, 16b, ... And 0.1-0.2
They are facing each other through a gap of about millimeter. Rotor 1
Is also made by the same means as the armature 16. There are six salient poles, which have the same spacing angle. Magnetic pole 16a,
The widths of the tips of 16b, ... Are 120 degrees, and 8 pieces are arranged at the same pitch. When the armature coils 17b and 17f are energized, the salient poles 1b and 1e are attracted and rotate in the arrow A direction. When rotated 90 degrees, the armature coil 17b,
The energization of 17f is stopped, and the armature coils 17c and 17g
Is energized, torque is generated by the salient poles 1c and 1f. Magnetic poles 16b and 16c are N poles, magnetic poles 16f and 16g
Is the south pole. This is because the magnetization of this polarity reduces the anti-torque due to the leakage of magnetic flux. In the next 90 degree rotation,
The magnetic poles 16d and 16h have the illustrated N and S polarities. Next 9
In the 0-degree rotation and the next 90-degree rotation, the magnetic poles are sequentially magnetized to the polarities shown in the figure.

Due to the above-described excitation, the rotor 1 is moved to the arrow A
It rotates in the direction and becomes a two-phase full-wave energizing motor. Even if the width of the energizing section is larger than 90 degrees, it also rotates. Since the width of the magnetic pole wound around the armature coil is 120 degrees, the winding space becomes large. Next, the energization control of the armature coil will be described with reference to FIG. 10, the armature coils K and M are the armature coils 17 of FIG.
a, 17e and 17c, 17g are respectively shown, and two armature coils are connected in series or in parallel.
Transistors 20a and 20b are inserted at the lower ends of the armature coils K and M, respectively. Transistor 20
a and 20b are semiconductor switching elements, and may be other semiconductor elements having the same effect. Power is supplied from the DC power source positive / negative terminals 2a and 2b. Terminal 4
When a high-level electric signal is input from 2a, the transistor 20a becomes conductive and the armature coil K is energized. When a high-level electric signal is input from the terminal 42c, the transistor 20b becomes conductive and the armature coil M is energized. The rotor 3 in FIG. 5 is made of a conductor plate and is coaxially rotating with the rotor 1. The rotor 3 is provided with protrusions 3a, 3b, ..., The width of the protrusions is 90 to 150 degrees. Coils 10d, 10e, 10d ,
10e has the same structure as the coils 10a, 10b, 10c described above, faces the protrusions 3a, 3b, ...
e is 180 degrees apart from the coils 10d and 10e, respectively.

FIG. 6 shows an electric circuit for obtaining a position detection signal from the above-mentioned coil. The oscillator 10, the coil 10d, the resistors 15a, 15b, ..., The operational amplifier 13 and the like are the same members as those having the same symbols in FIG. Therefore, from terminal 7a, 1
A rectangular wave electric signal having the same width and phase difference as the protrusions 3a, 3b, ... The position detection signal obtained from the coil 10d is shown as curves 50a, 50b, ... In the time chart of FIG. Block circuit 8a having the same configuration including coil 10e and coil 1
Block circuits 8b and 8c having the same configuration including 0d and 10e
A position detection signal is obtained from the terminals 7b, 7c, 7d of.
The output signal of the terminal 7b is the curves 52a, 5a in FIG.
2b, ..., and the output signals at terminals 7c, 7d are
Curves 51a, 51b, ... And curves 53a, 53, respectively
It is shown as b, ... The width of each curve is 120 degrees,
The phases are sequentially delayed by 90 degrees. The protrusion 3a of FIG.
When the width of 3b, ... Is changed to 90 degrees, the coils 10d, 1
The position detection signals obtained from 0e, 10d , and 10e are shown in FIG.
At the time chart of 9, the curves 54a, 54b,
..., curves 55a, 55b, ..., curves 56a, 56b,
..., curves 57a, 57b, ... are shown. The width of each curve is 90 degrees, and the phases are sequentially delayed by 90 degrees.
An arrow 50 indicates a section of 180 degrees.

The first and first position detection signals of the first phase input from the terminals 42a and 42c of FIG.
0a, 50b, ... And curves 51a, 51b ,. The second phase of the second phase input to the terminals 42b and 42d
The second position detection signals are curves 51a, 51b,
, And curves 53a, 53b ,. Since the first and first position detection signals are input to the terminals 42a and 42c, respectively, the conduction control of each transistor is performed, and the armature coil K and the armature coil M of the first phase receive the position detection signals. Corresponding to the above, energization with a width of 120 degrees is performed. The energizing current of the armature coil K by the position detection signal 50a can be shown by the curve 27a in the first stage of FIG. However, the width between the dotted lines is 120 degrees. The state of torque generation and its characteristics are exactly the same as those in the above-described FIG. 9 of the embodiment. The operation of setting the current value to a predetermined value by the chopper control of the energizing current by the operational amplifier 40a, the voltage of the reference voltage terminal 40, the resistor 22a, the differentiating circuit 40b, the monostable circuit 28a, the inverting circuit 28b, and the AND circuits 24a, 24b. It is similar to the embodiment. Capacitor 47a, transistors 4a, 4b, SC
The same applies to the effect of R5a and the block circuit 4, and the curve 27
Has the effect of making the rising edge of the curve rapid and the falling of the curve 27b portion rapid. The block circuit 32 controls conduction of the SCR 5b, and includes the transistors 4a and 4 described above.
b, the SCR 5a, and the block circuit 4 are all configured,
The SCR 5b is turned on by an electric pulse having a predetermined width at the beginning of the input position detection signal of the terminal 42a, and the capacitor 47
It is for applying the high voltage of a to the armature coil K. The action of increasing the electrostatic energy of the capacitor 47a by the chopper circuit and compensating for the energy loss due to the copper loss and iron loss during the movement of the magnetic energy between the armature coils is the same as in the previous embodiment.

The block circuit F for controlling the energization of the armature coils L and N has the same configuration as the circuit for controlling the energization of the armature coils K and M, and is provided with a chopper circuit of the same configuration although not shown. ing. Even if the capacitor 47a is removed and the capacitor 46a is provided, the same effect can be obtained.
The armature coil L is energized by the width of the curves 52a, 52b, ... Of FIG. 23, and the armature coil N is curved 53a, 53.
The width of b, ... Is energized, and the rise and fall of the energized current becomes rapid. As described above, the two-phase full-wave energization reluctance type electric motor is achieved, and the object of the present invention is achieved.
The terminals 42a and 42c have curves 54a, 54b, ...
And the electric signals of the curves 56a, 56b, ...
2b and 42d include curves 55a, 55b, ... And a curve 57a,
When electric signals 57b, ... Are input, it is possible to energize in a width of 90 degrees. When the energization is 90 degrees wide, the output torque decreases, but high speed operation (100,000 revolutions per minute at an output of 1 Kw) is possible. When the width is 120 degrees, the rotation speed is reduced to about 1/2, but the output torque is increased. In FIG. 5, the magnetic pole width may be 180 degrees and the number of salient poles may be 10. The magnetic pole width may be 120 degrees and the number of magnetic poles may be 8n (n is a positive integer). In this case, the number of salient poles correspondingly increases. The output torque increases as the number of magnetic poles increases. However, the rotation speed decreases. The curves 30a, 30b, ... In the third stage of FIG. 21 show the energizing currents of the exciting coils K, M, and the curves 30c, 30d show the energizing currents of the exciting coils L, N. Curves 54a, 55a, 56a, 57a
Is a position detection signal curve. The energizing section is 90 degrees, the output torque is continuous, and there is no overlapping portion, so that the ripple torque is small.

In each embodiment, the output torque can be increased by providing teeth on the magnetic poles and salient poles. Since the device of the present invention is configured to rotate at high speed, only the advantage that the output torque can be increased can be obtained and an effective technical means can be provided. In the embodiment of FIG. 1, the number of magnetic poles is 2n (n
Can be implemented as a positive integer of 3 or more). The number of salient poles correspondingly increases. There is an effect that the output torque increases and the rotation speed does not decrease. This is an effective technology for electric motors with large diameters.

Next, the embodiment shown in FIG. 11 will be described. The circuit of FIG. 11 is an energization control circuit of the armature coil of the three-phase full-wave energizing motor of FIG. Armature coils 32a, 32
b, 32c are armature coils of the first, second, and third phases, and armature coils 32d, 32e, 32f are first , first
2 and 3rd phase armature coil. Terminals 42a, 42
d is the position detection signal curves 36a, 36b,
... and curves 43a, 43b, ... are input. At this time, the transistors 20a and 20b become conductive, and the armature coil 3
A current of 120 degrees is applied to 2a and 32d, and the phase difference is 180 degrees. When the transistor 20a is turned off, the magnetic energy of the armature coil 32a flows into the capacitor 41a and is charged to a high voltage. Next, when it is rotated by 60 degrees, the input signal at the terminal 42d (curve 43 in FIG.
a, 43b, ...) Makes the transistor 20b conductive.

The base input of the transistor 20b is the curves 43a, 43b, ... Of FIG. An electric signal obtained by inverting an output electric pulse of a predetermined width of the monostable circuit, which is energized by the differential pulse at the starting ends of the curves 43a, 43b, ... With an inverting circuit, is input to the terminal 4-1. Therefore, since the transistors 4a and SCR5a are turned on, the high voltage of the capacitor 41a is applied to the armature coil 32d.
Is applied to make the rise of energization rapid. After that, the armature current becomes a value regulated by the voltage of the reference voltage terminal 40 by the chopper circuit having the same configuration as in the previous embodiment. Due to the chopper action, electrostatic energy is accumulated in the capacitor 41b. When the transistor 20b is turned off, the magnetic energy of the armature coil 32d charges the capacitor 41b to a higher voltage via the diode 21b. When rotated by 60 degrees, the transistor 20a becomes conductive by the position detection signals of the curves 36a, 36b, .... An electric signal obtained by inverting an output electric pulse of a predetermined width of the monostable circuit, which is energized by the differential pulse at the starting ends of the curves 36a, 36b, ... With an inverting circuit, is input to the terminal 4-2. Therefore, the transistor 4d,
The SCR 5d becomes conductive and the high voltage of the capacitor 41b is applied to the armature coil 32a to make the rise of energization rapid. In the subsequent 120 ° section, the armature current is held at the set value by the chopper circuit, and electrostatic energy corresponding to the chopper frequency (the number of choppers) is accumulated in the capacitor 41a.

The block circuits B and C are energization control circuits for the armature coils 32b and 32e and the armature coils 32c and 32f, respectively, and have the same structure as the armature coils 32a and 32d. Terminals 42b, 42c
22 and curves 38a, 37b, ...
The electric signals of 38b, ... Are input, and the terminals 42e, 42f are input.
The electric signals of the curves 44a, 44b, ... And the curves 45a, 45b are input to. As can be understood from the above description, the object of the present invention is achieved. Diodes 21d, 21e
Is a discharge circuit for the capacitors 41a and 41b. The present invention can be implemented by removing the capacitors 41a and 41b and providing the capacitors 47a and 47b as shown by dotted lines instead. The block circuit C is removed, the armature coils 32a and 32d are replaced with the armature coils K and M in FIG. 10, and the armature coils 32b and 32e are shown in FIG.
When the armature coils L and N of 0 are replaced and the energization control is performed by the position detection signal of FIG.

The circuit of FIG. 12 is an embodiment in which the discharging circuit of the capacitors 47a and 47b of the circuit of FIG. 11 is changed.
In FIG. 12, the transistor 20 is indicated by the curves 36a, 36b, ... Of the position detection signal input from the terminal 42a.
When a is conducted, the armature coil 32a is energized with a width of 120 degrees. Since the gate terminal 23-1 of the SCR 23a receives the input electric signal of the terminal 42a, the gate terminal 23-1 of FIG.
As in the case of 1, the electrostatic energy corresponding to the chopper frequency is stored in the capacitor 47a. When the transistor 20a is turned off at the end of the position detection signal,
The magnetic energy of the armature coil 32a is entirely the capacitor 4
7a is charged to a high voltage. When rotated by 60 degrees, the position detection signals 43a, 43b, ... Are input to the terminal 42d and the transistor 20b becomes conductive. The capacitor 47a is discharged in the order of the armature coil 32d, the transistor 20b, the resistor 22a, and the diode 21g. Therefore, the rise of the armature current can be made rapid, and the energy loss due to copper loss and iron loss can be compensated for. It will be more rapid. The energization for the subsequent 120 ° section is performed by the power supply, and the armature current reaches the set value by the chopper circuit. Electrostatic energy is accumulated in the capacitor 47b due to the chopper action in this section.

When the transistor 20b is turned off, the magnetic energy of the armature coil 32d is charged in the capacitor 47b via the diodes 21b and 21e and held at a higher voltage. When the transistor 20a is turned on by the next position detection signal, the capacitor 47b is discharged by the armature coil 32a, the transistor 20a, and the resistor 22.
Since a and the diode 21h are performed in this order, the armature current rises rapidly. Terminals 42b, 42e and terminal 4
The block circuit B (including the armature coils 32b and 32e), which is used for energization control by the input position detection signals of 2c and 42f, includes the armature coils 32c and 32f. It has the same structure as the energization control circuit. As can be understood from the above description, there is an effect that three-phase full-wave energization is performed to achieve the object of the present invention. As described in the embodiment of FIG. 11, the block circuit C can be removed to provide a two-phase full-wave electric motor. In the embodiments of FIGS. 11 and 12, constant speed control can be performed by a known means for changing the voltage of the terminal 40 by the rotation speed detection signal.

FIG. 14 shows an embodiment in which the technique according to the present invention is applied to a stepping motor. Although the present embodiment is a five-phase reluctance type electric motor, a plurality of phase stepping electric motors can be configured by the same means. Terminal 4
Five-phase stepping electric signals are input to 2a, 42b, 42g, and 42h. The stepping electric signal can be obtained by inputting it to the output pulse distributor of the pulse oscillator. The input signal of the terminal 42a is a rectangular wave stepping electric machine signal separated by a predetermined time width and the same time width. The input signals of the terminals 42b, 42c, ...
It is a stepping electric signal whose phase is sequentially delayed by ⅕ of the pulse width from the input signal a. The AND circuit 24a, the reference voltage terminal 40, the operational amplifier 40a, the differentiating circuit 40b, the monostable circuit 28a, and the inverting circuit 28b serve as a chopper circuit, which holds the current of the armature coil 32a at a set value. The energization control circuit for the armature coil 32a is exactly the same as that for the armature coil 32a in FIG. Therefore, the action and effect are exactly the same. Therefore, the terminal 42a
Energization is being performed close to the input waveform of. The block circuits 59a, 59b, ..., 59d are chopper circuits that have a common reference voltage terminal 40 and include an operational amplifier 40a, a differentiating circuit 40b, etc., and AND circuits 24b, 24c, 24g ,.
24h and resistors 22b, 22c, ..., 22h form a chopper circuit to hold the corresponding armature coil at the set value. The input signal of the terminal 42b is input to the terminal 4f via a circuit having the same configuration as the block circuit 4. SCR 5b and transistors 4d and 4e are S
Since the CR5a and the transistors 4a and 4b perform the corresponding actions, the armature coil 32b is energized in response to the input stepping signal at the terminal 42b, and the armature current has a shape close to the waveform of the stepping signal even at high speed rotation. Can be

The block circuits P, Q and R are the same energization control circuits as the armature coils 32a and 32b, and the diode 49
diodes 49c, 49g, 49 corresponding to a, 49b
h and transistors 20c, 20g, 20h corresponding to transistors 20a, 20b are shown separately.
With the above configuration, by inputting a 5-phase stepping electric signal to the terminals 42a, 42b, ..., 42h, it is driven as a stepping electric motor, and corresponding rotation is possible even with a stepping electric signal having a large frequency, for example, tens of thousands of cycles. The advantage is that only the advantages of the reluctance type stepping motor can be preserved and defects can be eliminated. Assuming that the circuit includes only the armature coils 32a, 32b, and 32c, and the reluctance motor having the configuration of FIG.
A phase stepping motor can be constructed. Figure 1
By providing a plurality of teeth on the magnetic pole, it is possible to obtain a small step angle and increase the number of rotations.

Next, an embodiment in which the means of the present invention is applied to a known DC brushless three-phase motor having a magnet rotor will be described. In FIG. 18, the armature coil 32
Reference characters a and 32d are armature coils that are bifilarly wound around the magnetic poles of the first phase, and generally become one armature coil for reciprocal energization. Armature coil 32
When a is energized, the magnetic pole is excited to N pole, and when the armature coil 32d is energized, the magnetic pole is excited to S pole. The above circumstances are exactly the same for the second-phase armature coils 32b and 32e and the third-phase armature coils 32c and 32f. The terminals 42a, 42d have position detection signal curves 36a, 36b, ... And curves 43a, 43 shown in FIG.
b, ... Are input respectively. Since it has the same configuration as the circuit of FIG. 9, the operation and effect are also the same. Block circuits B and C are circuits for controlling energization of the armature coils 32b and 32e and the armature coils 32c and 32f, respectively.
It has the same configuration as the circuit described above. The high voltage of the capacitor 47a is transmitted to the armature coil 32 via the SCR 5a that conducts at the starting end of the position detection signal input to the terminal 42a.
applied to a to make the rise of the armature current rapid, and the high voltage of the capacitor 47a causes the armature current of the armature coil 32d to pass through the SCR 5b conducted at the beginning of the position detection signal input to the terminal 42d. The rise is rapid. The block circuit 32 includes the SCR 5a and the transistor 4
a, 4b, having the same configuration as the block circuit 4, the terminal 4
It is energized by an electric pulse at the beginning of the input signal of 2d to make the SCR 5b conductive by its width. With the chopper circuit, the capacitor 47a is charged according to its frequency, and the copper loss and iron loss when magnetic energy moves between the armature coils are compensated to make the armature current faster. It is the same. Terminals 42b, 42e
22 and the curves 44a, 37b, ...
The electric signals of 44b, ... Are input and the terminals 42c, 42f are input.
, And curves 45a, 45b, ...
The electric signal of ... Is input. With the above configuration, as in the case of FIG. 9, the reduction torque and the counter torque are not generated at high speed rotation, and an efficient high speed electric motor can be obtained. It is characterized in that the number of expensive power elements is 1/2 that of the conventional means, that is, three sets of transistor bridge circuits.

FIG. 19 shows an embodiment in which the energization control means of the reluctance type three-phase full-wave motor of FIG. 11 is applied to a three-phase DC motor having a magnet rotor. The function and effect are exactly the same as in the case of FIG. Figure 2
0 is an embodiment in which the energization control means of the reluctance type three-phase full-wave electric motor of FIG. 12 is applied to a three-phase DC electric motor having a magnet rotor. Since the function and effect are exactly the same as those in the case of FIG. 12, description thereof will be omitted. It is obvious that the object of the present invention can be achieved by the energization control circuits of FIGS. The present invention can also be implemented by applying the energization control means shown in FIGS. 15, 16 and 17 to a DC motor having a magnet rotor.

[0045]

【The invention's effect】

First effect Only one power element for controlling the energization of the armature coil is provided on the negative electrode side of the power supply, resulting in low cost. Second effect A high-speed motor (up to 100,000 rpm) can be obtained. Effective technology can be obtained because neither torque reduction nor anti-torque is generated even at high speed rotation.
In the case of the stepping electric motor, the stepping electric motor can be driven in response to the high frequency stepping electric signal, and even at this time, the output torque is not reduced and the disturbance is prevented. When energization of one armature coil is stopped, the stored magnetic energy is converted into electrostatic energy of the capacitor,
It is converted into the magnetic energy of the armature coil to be energized next. Therefore, by changing the capacity of the capacitor, rise and fall of the energizing current can be controlled at a required speed, so that an efficient electric motor can be obtained at high speed rotation. Third Effect The chopper circuit can hold the armature current at a set value or perform constant speed control, and the magnetic energy stored in the inductance coils by utilizing the chopper action causes magnetic energy to flow between the armature coils. Compensating for the copper loss of the armature coil and the iron loss of the magnetic core when moving. Therefore, the rise and fall of the current flowing through the armature coil can be made extremely rapid,
An electric motor with high output torque and high output torque can be obtained. It can also be driven by a low voltage power supply.

[0046]

[Brief description of drawings]

FIG. 1 is a plan view of a three-phase single-wave reluctance motor according to the present invention.

FIG. 2 is a plan view of a three-phase full-wave reluctance motor according to the present invention.

3 is a development view of an armature and a rotor of the electric motor of FIG.

4 is a development view of an armature and a rotor of the electric motor of FIG.

FIG. 5 is an exploded view of an armature and a rotor of a two-phase full-wave reluctance type electric motor

FIG. 6 is an electric circuit diagram of a two-phase position detection device.

FIG. 7 is an electric circuit diagram of a three-phase position detection device.

FIG. 8 is a conventional armature coil energization control circuit diagram.

FIG. 9 is an energization control circuit diagram of an armature coil of a three-phase full-wave energizing reluctance motor.

FIG. 10 is an energization control circuit diagram of an armature coil of a reluctance type electric motor with two-phase full-wave energization.

FIG. 11 is a circuit diagram of another embodiment of an energization control circuit for an armature coil of a reluctance type electric motor with three-phase full-wave energization.

12 is a circuit diagram of another embodiment of the energization control circuit of FIG.

FIG. 13 is a circuit diagram of another embodiment of an energization control circuit diagram of a three-phase full-wave energizing reluctance motor.

FIG. 14 is a circuit diagram of an energization control of an armature coil of a 5-phase stepping motor.

FIG. 15 is an energization control circuit diagram of an armature coil of a three-phase single-wave or full-wave reluctance motor.

16 is a circuit diagram of another embodiment of the energization control circuit of FIG.

FIG. 17 is a circuit diagram of yet another embodiment of the energization control circuit of FIG.

FIG. 18 is an energization control circuit diagram of an armature coil of a three-phase DC motor having a magnet rotor.

19 is a circuit diagram of another embodiment of the energization control circuit of FIG.

FIG. 20 is a circuit diagram of still another embodiment of the energization control circuit of FIG.

FIG. 21 is a time chart of a position detection signal and an armature current.

FIG. 22 is a time chart of a position detection signal of a three-phase reluctance motor.

FIG. 23 is a time chart of a position detection signal of a two-phase reluctance motor.

[0047]

[Explanation of symbols]

1, 1a, 1b, ..., 3, 3a, 3b, ... Rotor and salient pole 5 Rotating shafts 16, 16a, 16b, ... Armature and magnetic poles 17a, 17b, ..., 6a, 6b Armature il 9 Outer housing 10a , 10b, 10c, 10d, 10e, 10d , 1
0e ... Position detection coils 32a, 32b, ..., 32f Armature coils K, L, M, N Armature coils B, C, D, F, G, H, I, P, Q, R, S, T,
Block circuit for controlling energization of armature coil 4,32 Block circuit 40 Reference voltage terminals 2a, 2b DC power supply terminal 40b Differentiating circuit 28a Monostable circuit 59a, 59b, ..., 59d Block circuit 8a, 8b, 8c having chopper action Block circuits for obtaining position detection signals 9a, 9b, 9c ... Torque curves 25, 26a, 26b, 26c, 27, 27a, 27
b, 27c, 28a, 28b, ..., 29a, 29b,
..., 30a, 30b, ..., 31a, 31b, ... energization curve of armature coil

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 5, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

Next, a three-phase full-wave energizing motor will be described with reference to the embodiment shown in FIG. In FIG. 9, terminals 42a, 4
From 2d, the electric signals of the position detection signal curves 36a, 36b, ... And the curves 43a, 43b ,. Therefore, the armature coils 32a and 32d are energized with a width of 120 degrees and a phase difference of 180 degrees. Reference voltage terminal 40,
Operational amplifier 40a, differentiating circuit 40b, monostable circuit 28
a, the inverting circuit 28b, and the AND circuits 24a and 24b are shown in FIG.
Similar to the case of 3, the circuit becomes a chopper circuit and holds the armature current at the set value. When the energization of the armature coil 32a is cut off, the stored magnetic energy flows into the small-capacity capacitor 47a via the diodes 21a and 21d and is charged and held at a high voltage. When the rotor rotates 60 degrees, the energization of the armature coil 32d starts, but at this time, S
Since the CR 5a and the transistors 4a and 4b become conductive, the high voltage of the capacitor 47a is applied to make the rising of the energization current rapid. When the energization of the armature coil 32d is cut off, the stored magnetic energy is held by being charged and stored in the capacitor 47a through the diodes 21b and 21e, and when the energization of the armature coil 32a is started next, The high voltage of 47a causes the rise of the energization of the armature coil 32a via the block circuit 32 to be rapid. Since the block circuit 4 is the same circuit as the one with the same symbol in FIG. 13, when the transistor 20b is turned on and the energization of the armature coil 32d is started, the transistors 4a, 4 have a predetermined width.
b, the SCR 5a is conducted, the capacitor 47a is discharged, and the rise of the energizing current can be made rapid. The block circuit 32 includes an SCR 5a, transistors 4a and 4b.
When the transistor 20a is energized by the input signal of the terminal 42a and the transistor 20a is energized, the circuit is energized by discharging the capacitor 47a through the armature coil 32a. The current rises rapidly. Therefore, there is an effect that the generation of the counter torque and the reduction torque is prevented.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

Capacitors 46a, 46b, 46 connected by dotted lines by removing capacitors 47a, 47b, 47c
The same purpose is achieved by providing c. Capacitor 46
SCRs 23a, 23 are provided on the negative side of a, 46b, 46c.
Circuits that perform the same operations as the circuits shown by b, 23c and the diodes 21g, 21h, 21i are inserted, but not shown. The same applies to the other embodiments described above, but the diodes 49a, 49b and 49c are the same as the capacitors 47a,
This is to prevent the power supply side from being energized by the high voltage of 47b and 47c. In the case of 3-phase dual wave energization,
A block circuit D is added. The block circuit D has the same configuration as the above-mentioned circuit for controlling the energization of the armature coils 32d, 32e, 32f. Terminals 42d, 42e,
42f shows the position detection signal curve 43 of FIG.
, and the electric signals of the two series of curves in the lower stage thereof are input, and each armature coil is energized with a width of 120 degrees. The chopper circuit is also attached independently. With the above configuration, the object of the invention can be achieved. 3
A reluctance type electric motor of full-wave phase conduction can be obtained.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

FIG. 6 shows an electric circuit for obtaining a position detection signal from the above-mentioned coil. The oscillator 10, the coil 10d, the resistors 15a, 15b, ..., The operational amplifier 13 and the like are the same members as those having the same symbols in FIG. Therefore, from terminal 7a, 1
A rectangular wave electric signal having the same width and phase difference as the protrusions 3a, 3b, ... The position detection signal obtained from the coil 10d is shown as curves 50a, 50b, ... In the time chart of FIG. Block circuit 8a having the same configuration including coil 10e and coil 1
Block circuits 8b and 8c having the same configuration including 0d and 10e
A position detection signal is obtained from the terminals 7b, 7c, 7d of.
The output signal of the terminal 7b is the curves 52a, 5a in FIG.
2b, ..., and the output signals at terminals 7c, 7d are
Curves 51a, 51b, ... And curves 53a, 53, respectively
It is shown as b, ... The width of each curve is 120 degrees,
The phases are sequentially delayed by 90 degrees. The protrusion 3a of FIG.
When the width of 3b, ... Is changed to 90 degrees, the coils 10d, 1
The position detection signals obtained from 0e, 10d , and 10e are shown in FIG.
In the time chart of 3, the curves 54a, 54b,
..., curves 55a, 55b, ..., curves 56a, 56b,
..., curves 57a, 57b, ... are shown. The width of each curve is 90 degrees, and the phases are sequentially delayed by 90 degrees.
An arrow 50 indicates a section of 180 degrees.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0041

[Correction method] Change

[Correction content]

FIG. 14 shows an embodiment in which the technique according to the present invention is applied to a stepping motor. Although the present embodiment is a five-phase reluctance type electric motor, a plurality of phase stepping electric motors can be configured by the same means. Terminal 4
Five-phase stepping electric signals are input to 2a, 42b, 42c, 42g, and 42h. The stepping electric signal can be obtained by inputting it to the output pulse distributor of the pulse oscillator. The input signal of the terminal 42a is a rectangular wave stepping electric signal separated by the same time width from each other in a predetermined time width. The input signals of the terminals 42b, 42c, ...
From the input signal of the terminal 42a, the phase is sequentially 1 / of the pulse width.
It is a stepping electric signal delayed by 5. AND circuit 24a, reference voltage terminal 40, operational amplifier 40
a, differentiating circuit 40b, monostable circuit 28a, inverting circuit 28
b is a chopper circuit, which holds the current of the armature coil 32a at a set value. The energization control circuit for the armature coil 32a is exactly the same as that for the armature coil 32a in FIG. Therefore, the action and effect are exactly the same. Therefore, energization close to the input waveform of the terminal 42a is performed. , 59d are chopper circuits that have a common reference voltage terminal 40 and include an operational amplifier 40a, a differentiating circuit 40b, etc., and AND circuits 24b, 24.
c, 24g, 24h and resistors 22b, 22c, ..., 22
Together with h, it becomes a chopper circuit and holds the corresponding armature coil at the set value. The input signal of the terminal 42b is input to the terminal 4f via a circuit having the same configuration as the block circuit 4. SCR 5b, transistors 4d, 4e
Respectively perform the operations corresponding to the SCR 5a and the transistors 4a and 4b, so that the armature coil 32b is energized in response to the input stepping signal at the terminal 42b,
Even at high speed rotation, the armature current can have a shape close to the waveform of the stepping signal.

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 13

[Correction method] Change

[Correction content]

[Fig. 13]

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 14

[Correction method] Change

[Correction content]

FIG. 14

Claims (3)

[Claims] 1. A multi-phase reluctance motor comprising a fixed armature and a magnetic rotor, and a plurality of salient poles arranged on the outer peripheral surface of the magnetic rotor at equal widths and at equal spacing angles. The magnetic poles projecting from the inner peripheral surface of the fixed armature and located at axially symmetrical positions have the same phase, face the salient poles with a slight gap, are arranged at equal pitches, and are equipped with armature coils. 2n (n is a positive integer of 3 or more) magnetic poles having a width in the circumferential direction of the magnetic poles of 120 to 180 degrees in electrical angle, and a plurality of phase armature coils attached to the magnetic poles,
A position detection device that detects a rotational position of a salient pole to obtain position detection signals of a plurality of phases, one switching element that is inserted in a power supply negative electrode side of each armature coil, and a power supply positive electrode side of each armature coil. One first diode inserted in the forward direction, a DC power supply for supplying power to a series connection body of the diode, the armature coil, and the switching element, and a plurality of phase electric machines corresponding to a plurality of phase detection signals. An energization control circuit that conducts the switching element connected to the child coil by the width of the position detection signal to energize the armature coil to obtain the output torque, and when the switching element is converted to non-conduction at the end of the position detection signal, From the connection point between the switching element and the armature coil, the magnetic energy accumulated in the armature coil through the second diode flows into a small-capacity capacitor for charging and holding, The electric circuit that makes the current flowing through the armature coil drop rapidly, and the magnetic rotor rotates by a set angle, and the armature coil is energized via the switching element that is conducted by the position detection signal. When
The electrostatic energy accumulated in the small-capacitance capacitor is introduced from the connection point between the first diode and the armature coil through the semiconductor element that is turned on in synchronization with the turn-on of the switching element, and the energization current is reduced. An electric circuit that makes the rise rapid, and a detection circuit that detects that the energizing current of the armature coil has increased beyond a predetermined value to obtain a detection electric signal,
A chopper circuit that holds a conduction current at a predetermined value by converting a switching element connected to the armature coil to a non-conduction state by the detection electric machine signal and making it conductive after a predetermined time, and switching during operation of the chopper circuit. When an element is converted to non-conduction, it is composed of an electric circuit for injecting magnetic energy into a small-capacity capacitor through a second diode and sequentially charging and holding electrostatic energy corresponding to a chopper frequency. A high-speed electric motor that has been characterized. 2. A multi-phase DC motor having a fixed armature and a magnet rotor, wherein a plurality of N, S magnetic poles are alternately arranged with an equal width on the outer peripheral surface of the magnet rotor. And facing the N and S magnetic poles with a slight air gap and arranged at equal pitches, and the circumferential width of the magnetic poles on which the armature coils are mounted are 120 degrees to 180 degrees in electrical angle. 3n (n is a positive integer) field magnetic poles having a width of 1, the armature coils mounted on the magnetic poles and having the biphasic winding, and the rotational positions of the N and S magnetic poles are detected, and the electrical angle is detected. A first phase position detection signal of a rectangular wave having a width of 120 degrees and a phase difference of 360 degrees, and a position detection signal of the first phase having the same waveform and phase difference as the position detection signal of the first phase. The positions of the second and third phases, each of which is sequentially 120 degrees apart in electrical angle. A position detection device including a plurality of position detection elements capable of obtaining a known signal, one switching element inserted in the power supply negative electrode side of each armature coil, and a forward connection to the power supply positive electrode side of each armature coil The above-mentioned one first diode, the DC power supply for supplying the diode, the armature coil, and the switching element connected in series, and the position detection signals of the first, second, and third phases correspond to each other. An energization control circuit that energizes the armature coil to energize the armature coil by energizing the switching element connected to the armature coil wound with the first, second, and third phases by the width of the position detection signal, and switching. When the element is turned off at the end of the position detection signal, the magnetic energy accumulated in the armature coil from the connection point between the switching element and the armature coil via the second diode. An electric circuit that charges and holds a small-capacity capacitor by inflowing it and makes the current flowing through the armature coil rapid, and a switching element that rotates the magnet rotor by a set angle and conducts it according to a position detection signal. When the energization of the armature coil is started via the, the small-capacity capacitor described above from the connection point of the first diode and the armature coil via the semiconductor element which is conducted in synchronization with the switching element. An electric circuit for making the rise of the energizing current flow rapidly by inflowing the electrostatic energy accumulated in, and a detecting circuit for detecting that the energizing current of the armature coil has increased beyond a predetermined value to obtain a detected electric signal, The switching element connected to the armature coil is converted to non-conduction by the detected electric signal and is made conductive after a predetermined time so that the conduction current is held at a predetermined value. During the operation of the chopper circuit and the chopper circuit, when the switching element is turned into non-conduction, magnetic energy flows into the small-capacity capacitor through the second diode, and electrostatic energy corresponds to the chopper frequency. A high-speed electric motor comprising an electric circuit for sequentially charging and holding the electric power. 3. A multi-phase reluctance type stepping motor having a fixed armature and a magnetic rotor, wherein a plurality of salient poles are provided on the outer peripheral surface of the magnetic rotor at equal intervals and pitches. , Is projected from the inner peripheral surface of the fixed armature,
Axisymmetric position. The magnetic poles are in phase, face the salient poles through a slight air gap, and the width of the circumferential surface of the magnetic pole on which the armature coil is mounted is 180 degrees in electrical angle, 2n.
(N is a positive integer of 3 or more) magnetic poles, a plurality of phase armature coils mounted on the magnetic poles, an electric signal separated by the same time width and a predetermined phase difference from each other for a predetermined time width. A pulse oscillator and a pulse distributor that generate a multi-phase stepping electric signal composed of electric signals, one switching element inserted on the negative electrode side of each armature coil, and each armature coil. One first diode inserted in the forward direction on the positive electrode side of the power source, a DC power source for supplying the diode, the armature coil, and the switching element in series connection, and a plurality of corresponding plurality of stepping electrical signals. An energization control circuit for obtaining a stepping torque by energizing the armature coil by energizing the switching element connected to the phase armature coil by the width of the stepping electric signal, and a switch When the switching element is converted into non-conduction at the end of the stepping electric signal, the magnetic energy accumulated in the armature coil via the second diode from the connection point between the switching element and the armature coil is converted into a small-capacity capacitor. The electrical circuit that charges the armature coil by inflow and holds it rapidly, and the switching element connected to the armature coil is turned on by the next stepping electric signal to start energization. When this happens, the electrostatic energy accumulated in the small-capacity capacitor is introduced from the connection point between the first diode and the armature coil through the semiconductor element that is conducted in synchronization with the switching element. An electric circuit that makes the rise of the energization current rapid, and a detection that the energization current of the armature coil has increased beyond a specified value to obtain a detection electrical signal And road, a switching element connected to the armature coil to convert the non-conductive by the detection electric signal, and a chopper circuit for holding the energizing current to a predetermined value by allowed to conduct after a predetermined time,
During the operation of the chopper circuit, when the switching element is turned into non-conduction, magnetic energy flows into the small-capacity capacitor through the second diode to sequentially charge the electrostatic energy corresponding to the chopper frequency. A high-speed electric motor characterized by being configured with an electric circuit for holding the same.