TWI624149B - A brush-less dc dynamo - Google Patents

Abstract

The invention provides a brushless DC rotating electrical machine, which is characterized in that the switch of the semiconductor component is used to replace the commutator segment (commutator) of the brushed armature in the conventional brushed DC rotating electrical machine, so as to practise the mechanical contact dynamics originally used. The operation of sequentially changing the positions of the armature connecting electrodes is switched to use a static power electronic switch array to sequentially switch in a contactless or non-breakpoint manner, so that the armature current can still maintain the traditional operation mode, while the rotation process is in time. Maintaining the distribution of its armature current just forms a direction perpendicular to the stator magnetic field, and there is no mechanical wear or electrode spark loss of the commutating joint.

Description

Brushless DC rotating motor

The present invention relates to a DC rotating electrical machine, and more particularly to a brushless DC rotating electrical machine.

The conventional DC rotating electric machine (DC Dynamo) is equipped with a brush and a commutator (commutator) structure to maintain the rotor magnetic field and the stator magnetic field in a direction orthogonal to the maximum torque at any time during the rotation. At the same time, the DC rotating motor maintains a voltage proportional to the simple nature of the speed, and the control is natural and simple, which has always played an important role in the traditional speed control, servo control and other fields. The BLDC Dynamo, which is popular in the market today, has a structure similar to that of a permanent magnet type variable frequency synchronous rotating electric machine, which uses a multi-phase (three-phase) magnetic field to alternately grow and rotate at a 120-degree angle to form a rotatable angle. The rotating magnetic force of the variable speed drives the permanent magnet type rotor, or the electromotive force induced by the rotating permanent magnet type rotor is induced to extract the alternating current power through the multiphase (three phase) coil. Although this method is mature, its VVVF control method is quite complicated and unnatural. Therefore, we seek a DC brushless rotating motor structure that is more similar to the traditional DC rotating motor control mode.

The invention replaces the commutator piece (commutator) of the conventional brushed DC rotating electric machine by using the switching function of the semiconductor element, and practises the action of replacing the position of the armature connecting electrode by the mechanical sequence, and switching to the static power electronic switch. Array, in the form of no or no breakpoints Sequential switching, the armature current can still maintain the traditional mode of operation, while maintaining the distribution of its armature current during the rotation process just forms a machine whose rotor magnetic field direction is orthogonal to the stator magnetic field, and there is no commutation contact mechanism. The friction or the spark loss of the electrode.

A feature of the present invention is to provide a brushless DC rotating electrical machine comprising: an annular armature unit comprising: N sets of first armature coils arranged in sequence, and the first set of the first armature coils and the first N sets the first armature coils adjacent to each other; N sets a second armature coil arranged outside the first armature coils and sequentially spaced, and the first group of the second armature coils and the Nth group The second armature coil is adjacent to each other; and the plurality of first wires and the plurality of second wires are respectively connected between each of the first armature coils and each of the second armature coils; wherein a natural number greater than 2, and the (i+1)th group of the first armature coil is connected to the (i+1)th group of the second armature coil by the (i+1)th first conductor and The second wire and the (i+2)th group of the second armature coil are connected by the (i+1)th wire, 1≦(i)≦N-2, and the first group of the first armature coils The first wire is connected to the first group of the second armature coils, and the first wire is connected to the second group of the second armature coils by the first wire, and the Nth group is the first The armature coil is made up of the Nth article The wire is connected to the second coil of the Nth group, and is connected to the first armature coil of the first group by the Nth second wire; a control unit comprising N first control switches and N second controls a switch, and the (j) first control switch is connected between the first-current power source of the first polarity and the second wire of the (j)th, and the (j) second control switch is connected to the second stream Between the polar power source and the second wire of the (j)th, the DC first polarity power source and the DC second polarity power source have opposite polarities, wherein (j) is a natural number and 1≦(j)≦N; a magnetic unit disposed in the annular armature unit, the magnetic unit having a pair of magnetic poles, wherein the annular armature unit and the magnetic unit are controllably rotatable relative to each other; and a position sensor for detecting the magnetic unit And the information of the position is output to the control unit, so that the control unit outputs a control signal to control the opening or closing of each of the first and second control switches.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the magnetic unit is a permanent magnet magnet or a magnetostrictive magnet.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the position sensor is a resolver, an encoder, a Hall sensor, and a light shield. Breaker or photoelectric sensor.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and further comprising a first noise suppression circuit (snubber) disposed between the DC first polarity power supply and the first control switches And a second noise suppression circuit (snubber) disposed between the DC second polarity power supply and the second control switches.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the first armature coil and the second armature coils can be wave-wound and lap-wound. ) or frog-leg winding is completed.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the annular armature unit is an annular stator and the magnetic unit is a magnetic rotor.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, wherein the annular armature unit is an annular rotor and the magnetic unit is a magnetic stator.

Still another feature of the present invention is to provide a brushless DC rotating electrical machine comprising: a first annular armature unit comprising M second annular armature units connected in series, M being a natural number equal to or greater than 2, And each of the second annular armature units comprises: N sets of first armature coils arranged in sequence, and the first set of the first armature coils are adjacent to the Nth group of the first armature coils a group of second armature coils arranged outside the first armature coils and sequentially spaced apart, and a first group of the second armature coils adjacent to the Nth group of the second armature coils; a plurality of first wires and a plurality of second wires are respectively connected between each of the first armature coils and each of the second armature coils; wherein N is a natural number greater than 2, and (i+ 1) The group of the first armature coil borrows The first wire is connected to the (i+1)th group of the second armature coil by the (i+1)th strip, and the second wire and the (i+2)th group are obtained by the (i+1)th The second armature coil is connected, 1≦(i)≦N-2, and the first set of the first armature coil is connected to the first set of the second armature coil by the first strip of the first arm. And connecting, by the first second wire, the second armature coil of the second group, and the Nth group of the first armature coils, by the Nth first wire and the Nth group of the second coil Connecting, and connecting, by the Nth, the second wire to the first group of the first armature coils; 2M group control units, and each of the control units respectively corresponding to one of the second ring armature units, Each of the control units includes N first control switches and N second control switches, and the (j) first control switches are connected to the DC first polarity power source and the corresponding second ring armature Between the second wires of the (j)th row in the unit, the (j) second control switch is connected to the first of the second-pole armature units corresponding to the DC-polar power source j) between the second wires The DC first polarity power source is opposite to the polarity of the DC second polarity power source, wherein (j) is a natural number and 1≦(j)≦N; a magnetic unit is disposed in the first ring armature unit, The magnetic unit has M pairs of magnetic poles, and the first annular armature unit and the magnetic unit are controllably rotatable relative to each other; and a position sensor for detecting the position of the magnetic unit and information about the position The control units are output to the control units, and the control units respectively output a control signal to control the opening or closing of each of the first and second control switches in the control units.

Still another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the magnetic unit is a permanent magnet magnet or a magnetostrictive magnet.

Yet another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the position sensor is a resolver, an encoder, a Hall sensor, and a light shield. Breaker or photoelectric sensor.

Another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and further comprising a first noise suppression circuit (snubber) disposed on the DC first polarity power supply And between the first control switch and a second noise suppression circuit (snubber) disposed between the DC second polarity power supply and the second control switch.

Still another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and the first armature coil and the second armature coils can be wave-wound and lap-wound. ) or frog-leg winding is completed.

Still another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, wherein the first annular armature unit is an annular stator and the magnetic unit is a magnetic rotor.

Yet another feature of the present invention is to provide a brushless DC rotating electrical machine as described above, and wherein the first annular armature unit is an annular rotor and the magnetic unit is a magnetic stator.

1b, 2b, 3b, 4b, 5b, 6b, 7b, 8b‧‧‧ first armature coil

1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a‧‧‧ second armature coil

100‧‧‧DC rotating electric machine

110‧‧‧Circular armature unit

120‧‧‧Magnetic unit

131~138‧‧‧First wire

141~148‧‧‧second wire

151A~158A‧‧‧First control switch

151B~158B‧‧‧Second control switch

160‧‧‧First polarity power supply

170‧‧‧second polarity power supply

1b1, 2b1, 3b1, 4b1, 5b1, 6b1, 7b1, 8b1, 1b2, 2b2, 3b2, 4b2, 5b2, 6b2, 7b2, 8b2‧‧‧ first armature coil

1a1, 2a1, 3a1, 4a1, 5a1, 6a1, 7a1, 8a1, 1a2, 2a2, 3a2, 4a2, 5a2, 6a2, 7a2, 8a2‧‧‧ second armature coil

300‧‧‧DC rotating electric machine

301, 302‧‧‧2nd ring armature unit

310‧‧‧First ring armature unit

320‧‧‧Magnetic unit

131~138; 131'~138'‧‧‧ first wire

141~148;141'~148'‧‧‧second wire

150‧‧‧ wire

151A1~158A1; 151A2~158A2‧‧‧ first control switch

151B1~158B1;151B2~158B2‧‧‧Second control switch

160‧‧‧First polarity power supply

170‧‧‧second polarity power supply

1 to 3 are schematic views showing the operation of the brushless DC rotating electrical machine 100 according to the first embodiment of the present invention.

Fig. 4 shows an equivalent circuit diagram corresponding to Fig. 1.

Fig. 5 shows an equivalent circuit diagram corresponding to Fig. 2.

Figure 6 shows an equivalent circuit diagram corresponding to Figure 3.

FIG. 7 to FIG. 8 are schematic diagrams showing the operation of the brushless DC rotating electrical machine 300 according to the second embodiment of the present invention.

Fig. 9 shows an equivalent circuit diagram corresponding to Fig. 7.

Fig. 10 shows an equivalent circuit diagram corresponding to Fig. 8.

The invention replaces the commutator segments (commutators) of the conventional brushed DC rotating electrical machine by the switching action of the semiconductor components, and practises the mechanical replacement of the armature connecting electrodes by the mechanical sequence. The position action is switched to use a static power electronic switch array, which is switched in a stepless or non-breakpoint manner so that the armature current can still maintain the traditional operation mode, while maintaining its armature current during the rotation process. The distribution just forms the direction of the rotor magnetic field orthogonal to the stator magnetic field, and there is no mechanical wear or electrode spark loss of the commutating joint.

The manner of making and using the embodiments of the present invention will be described in detail below. It should be noted, however, that the present invention provides many inventive concepts that can be applied in various specific forms. The specific embodiments discussed herein are merely illustrative of specific ways of making and using the invention, and are not intended to limit the scope of the invention.

Embodiment 1

First, referring to FIG. 1 , a brushless DC rotating electrical machine 100 according to an embodiment of the present invention includes an annular armature unit 110 and a permanent magnet or magnetic magnet. The magnetic unit 120 is disposed in the annular armature unit 110, and the magnetic unit 120 has a pair of magnetic poles, which are composed of N poles and S poles which are opposite in magnetic origin and are respectively located at opposite ends of the magnetic unit 120, and The annular armature unit 110 and the magnetic unit 120 are controllably rotatable relative to each other. In the present embodiment, the magnetic unit 120 is a rotor, and the annular armature unit 110 is a stator, and the magnetic unit 120 is controllably rotatable relative to the annular armature unit 110; in other embodiments in accordance with the present invention, The magnetic unit 120 is a stator, and the annular armature unit 110 is a rotor that is rotatable relative to the magnetic unit 120, and details are not described herein.

As shown in FIG. 1 , taking an 8-slot armature coil as an example, the ring armature unit 110 includes eight sets of first armature coils (1b, 2b, 3b, 4b, 5b, 6b, which are arranged at intervals). 7b, 8b), and the first armature coil 1b of the first group is adjacent to the first armature coil 8b of the eighth group; and the second armature is arranged at the outer side of the first armature coil and arranged at intervals Coils (1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a), and the first group second armature coil 1a is adjacent to the eighth group second armature coil 8a. The first armature coils (1b, 2b, 3b, 4b, 5b, 6b, 7b, 8b) and the second armature coils (1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a) described above may be Winding is accomplished by means of wave winding, lap winding or frog-leg winding.

Next, please refer to FIG. 4, which shows an equivalent circuit diagram corresponding to FIG. 1. As shown in FIG. 4, the brushless DC rotating electrical machine 100 includes a plurality of first conductors 131, in addition to a ring-shaped armature unit 110 and a magnetic unit 120 composed of a permanent magnet or a magneto-magnet. 138 and a plurality of second wires 141 148 148 are respectively connected to each of the first armature coils (1b, 2b, 3b, 4b, 5b, 6b, 7b, 8b) and each of the second armature coils (1a) Between 2a, 3a, 4a, 5a, 6a, 7a, 8a). The second armature coil 2b of the second group is connected to the second armature coil 2a of the second group by the second first wire 132, and the second armature coil 2b of the second group is controlled by the second strip. The second wire 142 is connected to the third group second armature coil 3a; the third group first armature coil 3b is connected to the third group of the second armature coil 3a by the third first wire 133, and the third group The first armature coil 3b is connected by the third second wire 143 and the fourth group second armature coil 4a; the fourth group of first armature coils 4b is connected to the fourth group by the fourth first wire 134 The second armature coil 4a is connected, and the fourth group of first armature coils 4b is connected by the fourth second wire 144 and the fifth group second armature coil 5a; the fifth group of first armature coils 5b The fifth first wire 135 is connected to the fifth group of the second armature coil 5a, and the fifth group of first armature coils 5b is connected by the fifth second wire 145 and the sixth group second armature The coil 6a is connected; the sixth group first armature coil 6b is connected to the sixth group of the second armature coil 6a by the sixth first wire 136, and the sixth group first armature coil 6b is connected by the sixth a second wire 146 is connected to the seventh group second armature coil 7a; Group 7 first armature coil 7b by Article 7 of the first wire group 137 and the seventh armature coil 7a connected to the second, and the second group 7b and first armature coil 7 by 7 The second second wire 147 is connected to the eighth group second armature coil 8a; the eighth group first armature coil 8b is connected to the eighth group of the second armature coil 8a by the eighth first wire 138, and The eight sets of first armature coils 8b are connected by the eighth second conductor 148 and the first set of second armature coils 1a.

In other embodiments according to the present invention, the annular armature unit 110 may include N sets of first armature coils arranged in a spaced relationship, and the first group of the first armature coils and the Nth group of the first armature coils Adjacent; N sets of second armature coils arranged outside the first armature coils and sequentially spaced, and the first set of the second armature coils are adjacent to the Nth group of the second armature coils And a plurality of first wires and a plurality of second wires are respectively connected between each of the first armature coils and each of the second armature coils; wherein N is a natural number greater than 2, and (i+1) the first armature coil is connected to the (i+1)th group of the second armature coil by the (i+1)th first conductor and by (i+1) The second wire is connected to the (i+2)th group of the second armature coil, 1≦(i)≦N-2, and the first group of the first armature coil is first by the first The wire is connected to the first armature coil of the first group, and is connected to the second armature coil of the second group by the first wire, and the Nth group of the first armature coil is by the Nth The first wire is connected to the Nth group of the second coil And connecting, by the Nth, the second wire to the first group of the first armature coils.

In addition, as shown in FIG. 4, the brushless DC rotating electrical machine 100 further includes a control unit (no label) including eight first control switches 151A-158A and eight second control switches 151B-158B. The first first control switch 151A is connected between the first-current first polarity power supply 160 and the first second second wire 141, and the first second control switch 151B is connected to the direct current second-polarity power supply 170. Between the first second wire 141; the second first control switch 152A is connected between the first-current first polarity power supply 160 and the second second wire 142, and the first second control switch 152B is connected to a DC second polarity power source 170 and a second second conductor 142 The third first control switch 153A is connected between the DC first polarity power supply 160 and the third second power line 143, and the third second control switch 153B is connected to the DC current second polarity power supply 170. The third second control switch 154A is connected between the direct current first polarity power supply 160 and the fourth second second wire 144, and the fourth second control switch 154B is connected to A DC second polarity power supply 170 is connected between the fourth second conductor 144; the fifth first control switch 155A is connected between the DC first polarity power supply 160 and the fifth second conductor 145, the fifth The second control switch 155B is connected between the DC current second polarity power supply 170 and the fifth second wire 145; the sixth first control switch 156A is connected to the DC first polarity power supply 160 and the sixth second Between the wires 146, the sixth second control switch 156B is connected between the DC current source 210 and the sixth conductor 146; the seventh first control switch 157A is connected to the first polarity of the current. Between the power source 160 and the third second conductor 147, the seventh second control switch 157B is connected to the The second polarity power supply 170 is connected between the seventh second conductor 147; the eighth first control switch 158A is connected between the DC first polarity power supply 160 and the eighth second conductor 148, the eighth and second The control switch 158B is connected between the DC current source 210 and the eighth second conductor 148; the DC first polarity power source 160 is opposite in polarity to the DC second polarity power source 170.

In other embodiments according to the present invention, when the annular armature unit 110 includes N sets of first armature coils arranged in sequence, and N sets of second positions spaced outside the first armature coils and sequentially spaced apart In the armature coil, the control unit includes N first control switches and N second control switches, and the (j) first control switch is connected to the DC first polarity power supply and the (j)th Between the second wires, the (j) second control switch is connected between the DC current source and the second conductor of the (j)th, the DC first polarity power source and the DC second polarity power source The polarity is reversed, where (j) is a natural number and 1≦(j)≦N.

In addition, the brushless DC rotating electrical machine 100 disclosed in this embodiment further includes a position sensor (not shown) for detecting the position of the magnetic unit 120 and outputting information of the position to the control unit (not The control unit (not shown) outputs a control signal to control the opening or closing of each of the first control switches (151A-158A) and the second control switches (151B-158B). The position sensor can be a resolver, an encoder, a Hall sensor, a photo interrupter or a photoelectric sensor.

Next, please continue to refer to FIG. 4, which shows that when the fourth second control switch 154B connected between the DC second polarity power source 170 and the fourth second wire 144 is turned on, as in the fourth section. The second wire 144 is connected to a commutator segment, and the flow direction of the current originally located in the fourth second wire 144 is changed, so that the current direction of the fourth group first armature coil 4b is from the exiting ring armature unit 110. The surface becomes incident on the surface of the annular armature unit 110 such that the current direction of the fifth group second armature coil 5a changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110; When the eighth first control switch 158A between the polarity power supply 160 and the eighth second wire 148 is turned on, as the eighth second wire 148 is connected to a commutator segment, the original position is in the eighth and second The flow direction of the current in the wire 148 is changed such that the current direction of the eighth group first armature coil 8b changes from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110, so that the first group of second armature coils The current direction of 1a is incident from the surface of the annular armature unit 110 110 exit into the annular surface of the armature unit. Thereby, the magnetic unit 120 in FIG. 1 in this embodiment can be rotated by an angle with respect to the annular armature unit 110 due to the change of the sensed rotational torque direction, thereby forming an active state as shown in FIG. Brush the DC rotating motor 100.

Next, please refer to FIG. 2 and FIG. 5, wherein FIG. 5 shows an equivalent circuit diagram corresponding to FIG. 2. As shown in FIG. 5, when connected to the DC current source 210 When the third second control switch 153B between the third wire 143 and the third wire 143 is turned on, as in the third wire 143 connected to a commutator segment, the original position is in the third wire 143 of the third wire. The current flow direction is changed such that the current direction of the fourth group first armature coil 4b changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110, so that the current of the fourth group of second armature coils 4a The direction changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110; and when the seventh first control switch 157A connected between the direct current first polarity power source 160 and the seventh second wire 147 is When turned on, as the seventh conductor 147 of the seventh strip is connected to a commutator segment, the flow direction of the current originally located in the second conductor 147 of the seventh strip is changed, so that the current direction of the first armature coil 8b of the eighth group is changed. The surface of the annular armature unit 110 is changed from the surface of the injection ring armature unit 110 to the surface of the annular armature unit 110 so that the current direction of the eighth group second armature coil 8a changes from the surface of the injection ring armature unit 110 to the surface of the injection ring armature unit 110. Thereby, the magnetic unit 120 in FIG. 2 in this embodiment can be rotated by an angle with respect to the annular armature unit 110 due to the change of the sensed rotational torque direction, thereby forming an active state as shown in FIG. Brush the DC rotating motor 100.

Next, please refer to FIG. 3 and FIG. 6 , wherein FIG. 6 shows an equivalent circuit diagram corresponding to FIG. 3 . As shown in FIG. 6, when the second second control switch 152B connected between the direct current second polarity power source 170 and the second second wire 142 is turned on, like the second second wire 142 and one In the case of the commutator piece connection, the flow direction of the current originally located in the second second wire 142 is changed, so that the current direction of the third group first armature coil 3b is changed from the surface of the exiting ring armature unit 110 to the ring-shaped electric power. The surface of the pivot unit 110 is such that the current direction of the third set of second armature coils 3a changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110; and when connected to the DC first polarity power supply 160 and the seventh When the sixth first control switch 156A between the second wires 147 is turned on, as the sixth wire 146 is connected to a commutator segment, the original position The flow direction of the current in the sixth second wire 146 is changed such that the current direction of the seventh group first armature coil 7b changes from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110, so that the seventh The current direction of the group second armature coil 7a changes from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110. Thereby, the magnetic unit 120 in FIG. 3 in this embodiment can be rotated by an angle with respect to the annular armature unit 110 because the sensed rotational torque direction changes.

Similarly, the brushless DC rotating electrical machine 100 in the actuated state as shown in FIG. 3 changes the opening and closing states of the respective first control switches (151A to 158A) and the respective second control switches (151B to 158B). The first armature coil (1b, 2b, 3b, 4b, 5b, 6b, 7b, 8b) and the second armature coil (1a, above) can be constantly changed like the conventional brushed DC commutator The direction of the current in each of the second wires (141 to 148) between 2a, 3a, 4a, 5a, 6a, 7a, 8a) is changed, so that the direction of the rotational torque experienced by the magnetic unit 120 is constantly changed to reach The function of a brushless DC rotating motor.

In addition, in other embodiments of the present invention, a first snubber (not shown) may be included, and the DC first polarity power supply 160 and the first control switch first control switch are disposed. Between (151A and 158A), and a second noise suppression circuit (snubber) (not shown), disposed in the DC second polarity power supply 170 and the second control switch first control switch (151B~158B) between.

Embodiment 2

Please refer to FIG. 7 , which illustrates a brushless DC rotating electrical machine 300 according to another embodiment of the invention, which includes a first annular armature unit 310 and a permanent magnet or magnetic magnet. The magnetic unit 320 is disposed in the first annular armature unit 310. on The magnetic unit 320 has two pairs of magnetic poles, and the annular armature unit 310 and the magnetic unit 320 are controllably rotatable relative to each other. In the present embodiment, the magnetic unit 320 is a rotor, and the annular armature unit 310 is a stator, and the magnetic unit 320 is controllably rotatable relative to the annular armature unit 310; in other embodiments in accordance with the present invention, The magnetic unit 320 is a stator, and the annular armature unit 110 is a rotor that is rotatable relative to the magnetic unit 120, and details are not described herein. The first annular armature unit 310 includes two second annular armature units 301, 302 that are electrically connected to each other.

Taking the 8-slot armature coil as an example, the second annular armature unit 301 includes eight sets of first armature coils (1b1, 2b1, 3b1, 4b1, 5b1, 6b1, 7b1, 8b1) arranged in sequence. And the first armature coil 1b1 of the first group is adjacent to the first armature coil 8b1 of the eighth group; the first group is located at the first armature coil (1b1, 2b1, 3b1, 4b1, 5b1, 3b1, 4b1, 8b1) a second armature coil (1a1, 2a1, 3a1, 4a1, 5a1, 6a1, 7a1, 8a1) arranged outside and sequentially spaced, and the first group of second armature coils 1a1 and the eighth group of second armature coils 8a1 is adjacent. The first armature coils (1b1, 2b1, 3b1, 4b1, 5b1, 6b1, 7b1, 8b1) and the second armature coils (1a1, 2a1, 3a1, 4a1, 5a1, 6a1, 7a1, 8a1) described above may be Winding is accomplished by means of wave winding, lap winding or frog-leg winding. Similarly, taking an 8-slot armature coil as an example, the other second annular armature unit 302 includes eight sets of first armature coils arranged in sequence (1b2, 2b2, 3b2, 4b2, 5b2, 6b2). 7b2, 8b2), and the first group first armature coil 1b2 is adjacent to the eighth group first armature coil 8b2; the eighth group is located at the first armature coil (1b2, 2b2, 3b2, 4b2, 5b2) 6b2, 7b2, 8b2) second armature coils (1a2, 2a2, 3a2, 4a2, 5a2, 6a2, 7a2, 8a2) arranged outside and sequentially spaced, and the first group of second armature coils 1a2 and 8 The second armature coil 8a2 is adjacent to each other. The first armature described above The coils (1b2, 2b2, 3b2, 4b2, 5b2, 6b2, 7b2, 8b2) are similar to the second armature coils (1a2, 2a2, 3a2, 4a2, 5a2, 6a2, 7a2, 8a2) described above by means of wave winding ( Wave winding), lap winding or frog-leg winding is completed. As shown in FIG. 7, the first armature coils (1b1, 2b1, 7b1, 8b1) on the second annular armature unit 301 and the first armature coils (1b2, 2b2) on the second annular armature unit 302 are shown. The current direction of 7b2, 8b2) is the surface of the first annular armature unit 300, and the second armature coil of the second armature unit 301 is the second armature coil (1a1, 2a1, 7a1, 8a1) And the second armature coil second armature coil (1a2, 2a2, 7a2, 8a2) on the second annular armature unit 302 is a surface that emits the first annular armature unit 300; further, the second annular armature unit The current direction of the first armature coils (3b1, 4b1, 5b1, 6b1) on the 301 and the first armature coils (3b2, 4b2, 5b2, 6b2) on the second annular armature unit 302 is the first ring The surface of the armature unit 300, and the second armature coils on the second annular armature unit 301, the second armature coils (3a1, 4a1, 5a1, 6a1) and the second armature on the second annular armature unit 302 The coil second armature coils (3a2, 4a2, 5a2, 6a2) are surfaces that exit the first toroidal armature unit 300;

In other embodiments of the present invention, the second annular armature units 301, 302 may respectively include N sets of first armature coils arranged in sequence, and the first set of the first armature coils and the Nth Grouping the first armature coils adjacent to each other; N groups of second armature coils positioned outside the first armature coils and sequentially spaced, and the first group of the second armature coils and the Nth group The second armature coil is adjacent to each other; and the plurality of first wires and the plurality of second wires are respectively connected between each of the first armature coils and each of the second armature coils; wherein N is greater than a natural number of 2, and the first armature coil of the (i+1)th group is connected to the second armature coil of the (i+1)th group by the (i+1)th first conductor and borrowed The second wire and the (i+2)th group of the second armature wire by the (i+1)th a ring connection, 1≦(i)≦N-2, and the first group of the first armature coils is connected to the first group of the second armature coils by the first one of the first wires, and by the first The second wire is connected to the second group of the second armature coils, and the Nth group of the first armature coils is connected to the Nth group of the second coils by the Nth first wire The Nth second wire is connected to the first group of the first armature coils.

Next, please refer to Fig. 9, which shows an equivalent circuit diagram corresponding to Fig. 7. As shown in FIG. 9, the brushless DC rotating motor 300 further includes a plurality of first wires 131-138 and a plurality of second wires 141-148 connected to the first armature coils (1b1, 2b1, 3b1, respectively). 4b1, 5b1, 6b1, 7b1, 8b1) are interposed between each of the second armature coils (1a1, 2a1, 3a1, 4a1, 5a1, 6a1, 7a1, 8a1). The second set of first armature coils 2b1 on the second annular armature unit 301 is connected to the second set of the second armature coils 2a1 by the second first wire 132, and the second set of first armatures The coil 2b1 is connected by the second second wire 142 and the third group second armature coil 3a1; the third group first armature coil 3b1 is connected to the third group by the third wire 133 and the third group The pivot coil 3a1 is connected, and the third group first armature coil 3b1 is connected by the third second wire 143 and the fourth group second armature coil 4a1; the fourth group first armature coil 4b1 is connected by the fourth The first wire 134 is connected to the fourth group of the second armature coils 4a1, and the fourth group of first armature coils 4b1 is connected by the fourth second wire 144 and the fifth group second armature coil 5a1; The fifth group first armature coil 5b1 is connected to the fifth group of the second armature coils 5a1 by the fifth first wire 135, and the fifth group first armature coil 5b1 is connected by the fifth second wire 145 is connected to the sixth group second armature coil 6a1; the sixth group first armature coil 6b1 is connected to the sixth group of the second armature coil 6a1 by the sixth first wire 136, and the sixth group is first Armature coil 6b1 and by Article 6 The wire 146 is connected to the seventh group second armature coil 7a1; the seventh group first armature coil 7b1 is connected to the seventh group of the second armature coil 7a1 by the seventh first wire 137, and the seventh group An armature coil 7b1 and by the seventh second wire 147 Connected to the eighth group second armature coil 8a1; the eighth group first armature coil 8b1 is connected to the eighth group of the second armature coil 8a1 by the eighth first wire 138, and the eighth group first electric The pivot coil 8b1 is connected by the eighth second wire 148 and the first group second armature coil 1a1.

As shown in FIG. 9, the brushless DC rotating motor 300 further includes a plurality of first wires 131'-138' and a plurality of second wires 141'-148' connected to the first armature coils (1b2). And 2b2, 3b2, 4b2, 5b2, 6b2, 7b2, 8b2) are interposed between each of the second armature coils (1a2, 2a2, 3a2, 4a2, 5a2, 6a2, 7a2, 8a2). The second set of first armature coils 2b2 on the second annular armature unit 302 is connected to the second set of the second armature coils 2a2 by the second first wire 132, and the second set of first armatures The coil 2b2 is connected by the second second wire 142 and the third group second armature coil 3a2; the third group first armature coil 3b2 is connected to the third group by the third wire 133 and the third group The pivot coil 3a2 is connected, and the third group first armature coil 3b2 is connected by the third second wire 143 and the fourth group second armature coil 4a2; the fourth group first armature coil 4b2 is connected by the fourth The first wire 134 is connected to the fourth group of the second armature coils 4a2, and the fourth group of first armature coils 4b2 is connected by the fourth second wire 144 and the fifth group second armature coil 5a2; The fifth group first armature coil 5b2 is connected to the fifth group of the second armature coils 5a2 by the fifth first wire 135, and the fifth group first armature coil 5b2 is connected by the fifth second wire 145 is connected to the sixth group second armature coil 6a2; the sixth group first armature coil 6b2 is connected to the sixth group of the second armature coil 6a2 by the sixth first wire 136, and the sixth group is first Armature coil 6b2 and by Article 6 The wire 146 is connected to the seventh group second armature coil 7a2; the seventh group first armature coil 7b2 is connected to the seventh group of the second armature coil 7a2 by the seventh first wire 137, and the seventh group An armature coil 7b2 is connected by the seventh second wire 147 and the eighth group second armature coil 8a2; the eighth group first armature coil 8b2 is made of the eighth first wire 138 and the eighth group The second armature coil 8a2 is connected, and the eighth group of first armature wires The ring 8b2 is connected by the eighth second wire 148 and the first group second armature coil 1a2. In addition, the second annular armature units 301, 302 are connected in series with each other by a wire 150.

In addition, as shown in FIG. 9, the brushless DC rotating motor 300 further includes a control unit (not numbered), including eight first control switches 151A1 to 158A1 and eight stages for controlling the second annular armature unit 301. Two control switches 151B1 - 158B1, and eight first control switches 151A2 - 158A2 and eight second control switches 151B2 - 158B2 for controlling the second ring armature unit 302.

As shown in FIG. 9, the first first control switch 151A1 is connected between the DC first polarity power supply 160 and the first second wire 141, and the first second control switch 151B1 is connected to the Flowing between the second polarity power source 170 and the first second wire 141; the second first control switch 152A1 is connected between the DC current first polarity power supply 160 and the second second wire 142, the first The second control switch 152B1 is connected between the direct current second polarity power source 170 and the second second wire 142; the third first control switch 153A1 is connected to the direct current first polarity power source 160 and the third second wire Between 143, the third second control switch 153B1 is connected between the DC second polarity power supply 170 and the third second conductor 143; the fourth first control switch 154A1 is connected to the DC first polarity power supply. Between the 160 and the fourth second wire 144, the fourth second control switch 154B1 is connected between the DC second polarity power supply 170 and the fourth second wire 144; the fifth first control switch 155A1 is Connected between the first-current first-polar power source 160 and the fifth-second second wire 145, the fifth The second control switch 155B1 is connected between the direct current second polarity power source 170 and the fifth second wire 145; the sixth first control switch 156A1 is connected to the direct current first polarity power source 160 and the sixth second wire Between 146, the sixth second control switch 156B1 is connected between the direct current second polarity power supply 170 and the sixth second wire 146; the seventh The first control switch 157A1 is connected between the DC first polarity power supply 160 and the third second wire 147, and the seventh second control switch 157B1 is connected to the DC second polarity power supply 170 and the seventh second. Between the wires 147; the eighth first control switch 158A1 is connected between the DC first polarity power supply 160 and the eighth second wire 148, and the eighth second control switch 158B1 is connected to the DC current polarity. The power source 170 is connected to the eighth second conductor 148; the DC first polarity power source 160 is opposite in polarity to the DC second polarity power source 170.

Further, as shown in FIG. 9, the first first control switch 151A2 is connected between the first-current first polarity power supply 160 and the first second second wire 141', and the first second control switch 151B2 is connected to a DC second polarity power supply 170 and the first second wire 141'; the second first control switch 152A2 is connected between the DC first polarity power supply 160 and the second second wire 142', One second control switch 152B2 is connected between the DC second polarity power supply 170 and the second second wire 142'; the third first control switch 153A2 is connected to the DC first polarity power supply 160 and the third Between the second wires 143', the third second control switch 153B2 is connected between the DC second polarity power supply 170 and the third second wire 143'; the fourth first control switch 154A2 is connected to Between the DC first polarity power supply 160 and the fourth second wire 144', the fourth second control switch 154B2 is connected between the DC second polarity power supply 170 and the fourth second wire 144'; The five first control switches 155A2 are connected between the DC first polarity power source 160 and the fifth second line 145. The five second control switches 155B2 are connected between the DC second polarity power supply 170 and the fifth second conductor 145'; the sixth first control switch 156A2 is connected to the DC first polarity power supply 160 and the sixth Between the second wires 146', the sixth second control switch 156B2 is connected between the DC second polarity power supply 170 and the sixth second wire 146'; the seventh first control switch 157A2 is connected to a DC first polarity power supply 160 and a third second conductor Between the 147', the seventh second control switch 157B2 is connected between the DC second polarity power supply 170 and the seventh second conductor 147'; the eighth first control switch 158A2 is connected to the first stream. Between the polarity power source 160 and the eighth second conductor 148', the eighth second control switch 158B2 is connected between the DC current polarity power supply 170 and the eighth second conductor 148'; the DC first polarity The power source 160 is opposite in polarity to the DC second polarity power source 170 described above.

In other embodiments according to the present invention, when the second annular armature unit 301, 302 includes N sets of first armature coils arranged in sequence and N sets of second armature coils arranged in sequence. The brushless DC rotating electrical machine 300 includes a 2M group control unit, and each of the control units respectively corresponds to one of the second annular armature units 301 or 302, and each of the control units includes N first controls. a switch and N second control switches, and wherein the (j) first control switch is connected to the first (j) second wire of the first-current first-polar power source and the corresponding second ring-shaped armature unit The (j) second control switch is connected between the second (second) power source and the second (j) second wire of the second annular armature unit corresponding thereto, the DC first The polarity power source is opposite to the polarity of the DC second polarity power source, wherein (j) is a natural number and 1 ≦ (j) ≦ N.

In addition, the brushless DC rotating motor 300 disclosed in this embodiment further includes a position sensor (not shown) for detecting the position of the magnetic unit 320 and outputting information of the position to the control unit (not Marked), and then the control unit (not shown) outputs a control signal to control each of the first control switches (151A~158A; 151A'-158A') and the second control switch (151B~158B; 151B'~ 158B') is turned on or off. The position sensor can be a resolver, an encoder, a Hall sensor, a photo interrupter or a photoelectric sensor.

Next, please continue to refer to FIG. 9, when the second second control switch 152B1, 152B2 connected between the direct current second polarity power source 170 and the second second wire 142, 142' is turned on, like the second The second wires 142, 142' are connected to a commutator segment, and the flow of current originally located in the second second wires 142, 142' is changed, so that the second group of the second ring armature unit 301 is The current direction of the armature coil 2b1 changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110, and the current direction of the third group of second armature coils 3a1 changes from the surface of the exiting annular armature unit 110 to the entrance ring. The surface of the armature unit 110, and the current direction of the second set of first armature coils 2b2 of the second annular armature unit 302 changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110, the third group of the second group The current direction of the armature coil 3a2 changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110; and when connected between the DC first polarity power supply 160 and the sixth second conductor 146, 146' The sixth first control switch 156A1, 156A2 is turned on As the sixth second wire 146, 146' is connected to a commutator segment, the flow direction of the current originally located in the second wire 146, 146' of the sixth strip is changed, so that the second annular armature unit 301 The current direction of the sixth group first armature coil 6b1 is changed from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110, and the current direction of the seventh group second armature coil 7a1 is from the injection ring armature unit 110. The surface becomes the surface of the exiting annular armature unit 110, and the current direction of the sixth group of first armature coils 6b2 of the second annular armature unit 302 changes from the surface of the incident annular armature unit 110 to the surface of the exiting annular armature unit 110, The current direction of the seven sets of second armature coils 7a2 changes from the surface of the incident annular armature unit 110 to the surface of the exiting annular armature unit 110. Thereby, the magnetic unit 320 in this embodiment can be rotated as shown in FIG. 7 because the sensed direction of the rotating torque is constantly changed, and can be rotated by an angle with respect to the annular armature unit 310, as shown in FIG. The brushless DC rotating electrical machine 300 is shown in an actuated state.

Next, please refer to FIG. 9 and FIG. 10, wherein FIG. 10 shows an equivalent circuit diagram corresponding to FIG. As shown in FIG. 10, when the first second control switches 151B1, 151B2 connected between the direct current second polarity power source 170 and the first second wire 141, 141' are turned on, as in the first bar The two wires 141, 141' are connected to a commutator segment, and the current flow in the first wire 141, 141' is changed, so that the first group of the second ring armature unit 301 is first. The current direction of the pivot coil 1b1 is changed from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110, and the current direction of the second group of second armature coils 2a1 is changed from the surface of the exiting annular armature unit 110 to the incident annular armature. The surface of the unit 110, and the current direction of the first set of first armature coils 1b2 of the second annular armature unit 302 changes from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110, and the second set of second armatures The current direction of the coil 2a2 is changed from the surface of the exiting annular armature unit 110 to the surface of the annular armature unit 110; and when connected to the fifth between the first-current first-polar power source 160 and the fifth second-wire 145, 145' When the first control switches 155A1, 155A2 are turned on, as in the fifth The second conductors 145, 145' are connected to a commutator segment, and the flow of current originally located in the fifth second conductor 145, 145' is changed, so that the fifth group of the second annular armature unit 301 is The current direction of an armature coil 5b1 changes from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110, and the current direction of the sixth group second armature coil 6a1 changes from the surface of the injection ring armature unit 110 to the exit ring. The surface of the armature unit 110, and the current direction of the fifth group first armature coil 5b2 of the second annular armature unit 302 changes from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110, the sixth group of the second group The current direction of the armature coil 6a2 changes from the surface of the injection ring armature unit 110 to the surface of the exit ring armature unit 110. Thereby, the magnetic unit 320 in this embodiment can be rotated as shown in FIG. 8 because the sensed rotational torque direction is constantly changed to be rotated by an angle with respect to the annular armature unit 310.

Similarly, the brushless DC rotating motor 300 in the actuated state as shown in FIG. 9 can continue to change the opening and closing states of the respective first control switches (151A to 158A) and the respective second control switches (151B to 158B). The first armature coils (1b1, 2b1, 3b1, 4b1, 5b1, 6b1, 7b1, 8b1; 1b2, 2b2, 3b2, 4b2, 5b2) can be constantly changed as in the conventional brushed DC commutator. , 6b2, 7b2, 8b2) and the above-described second armature coils (1a1, 2a1, 3a1, 4a1, 5a1, 6a1, 7a1, 8a1; 1a2, 2a2, 3a2, 4a2, 5a2, 6a2, 7a2, 8a2) The direction of the current in each of the second wires (141~148; 141'-148') is changed, so that the direction of the rotational torque experienced by the magnetic unit 320 is continuously changed to achieve the function of the brushless DC rotating motor.

In addition, in other embodiments of the present invention, a first snubber (not shown) may be included, and the DC first polarity power supply 160 and the first control switch first control switch are disposed. Between (151A~158A; 151A'~158A') and a second noise suppression circuit (snubber) (not shown), disposed in the DC second polarity power supply 170 and the second control switch first control switch Between (151B~158B; 151B'~158B').

While the invention has been described above in terms of the preferred embodiments thereof, which are not intended to limit the invention, the invention may be modified and combined with the various embodiments described above without departing from the spirit and scope of the invention. example.

Claims (14)

A brushless DC rotating electrical machine includes: a ring-shaped armature unit, comprising: N sets of first armature coils arranged in sequence, and the first group of the first armature coil and the Nth group of the first armature coil Adjacent; N sets of second armature coils arranged outside the first armature coils and sequentially spaced, and the first set of the second armature coils are adjacent to the Nth group of the second armature coils And a plurality of first wires and a plurality of second wires are respectively connected between each of the first armature coils and each of the second armature coils; wherein N is a natural number greater than 2, and (i+1) the first armature coil is connected to the (i+1)th group of the second armature coil by the (i+1)th first conductor and by (i+1) The second wire is connected to the (i+2)th group of the second armature coil, 1≦(i)≦N-2, and the first group of the first armature coil is first by the first The wire is connected to the first armature coil of the first group, and is connected to the second armature coil of the second group by the first wire, and the Nth group of the first armature coil is by the Nth The first wire is connected to the second coil of the Nth group Connecting, and connecting, by the Nth, the second wire to the first group of the first armature coil; a control unit comprising N first control switches and N second control switches, and (j)th a control switch is connected between the first-current power source of the first polarity and the second wire of the (j)th, and the (j) second control switch is connected to the power source of the second polarity and the (j)th second Between the wires, the DC first polarity power source and the DC second polarity power source have opposite polarities, wherein (j) is a natural number and 1 ≦ (j) ≦ N; a magnetic unit is disposed in the ring armature unit The magnetic unit has a pair of magnetic poles, and the annular armature unit and the magnetic unit are controllably rotatable relative to each other; and a position sensor for detecting the position of the magnetic unit and outputting information of the position to The control unit further causes the control unit to output a control signal to control the opening or closing of each of the first and second control switches. The brushless DC rotating electrical machine according to claim 1, wherein the magnetic unit is a permanent magnet magnet or a magnetostrictive magnet. A brushless DC rotating electrical machine as claimed in claim 2, wherein the position sensor is a resolver, an encoder, a Hall sensor, a photointerrupter or a photoelectric sensor. The brushless DC rotating electrical machine according to claim 3, further comprising a first noise suppression circuit (snubber) disposed between the DC first polarity power supply and the first control switch, and a first A snubber is disposed between the DC second polarity power supply and the second control switch. The brushless DC rotating electrical machine according to any one of claims 1 to 4, wherein the first armature coil and the second armature coil are wave-wound and stacked ( The lap winding) or the frog-leg winding method is completed. The brushless DC rotating electrical machine of claim 5, wherein the annular armature unit is an annular stator and the magnetic unit is a magnetic rotor. The brushless DC rotating electrical machine of claim 5, wherein the annular armature unit is an annular rotor and the magnetic unit is a magnetic stator. A brushless DC rotating electrical machine comprising: a first annular armature unit comprising M second annular armature units connected in series, M being a natural number equal to or greater than 2, and each of the second rings Each of the armature units includes: N sets of first armature coils arranged in sequence, and the first set of the first armature coils are adjacent to the Nth group of the first armature coils; the N sets are located in the first a second armature coil arranged outside the armature coil and sequentially spaced, and the first group of the second armature coil is adjacent to the Nth group of the second armature coil; and the plurality of first conductors and the plurality of strips a second wire connected between each of the first armature coils and each of the second armature coils; wherein N is a natural number greater than 2, and the (i+1)th group of the first armature The coil is connected to the (i+1)th group of the second armature coil by the (i+1)th first conductor and by the (i+1)th second conductor and the (i+2) The second armature coil is connected, 1≦(i)≦N-2, and the first set of the first armature coil is the first of the first arm and the first set of the second armature coil Connected and by the first one of the second The line is connected to the second armature coil of the second group, and the first armature coil of the Nth group is connected to the second coil of the Nth group by the Nth strip, and by the Nth strip The second wire is connected to the first group of the first armature coils; the 2M group control unit, and each of the control units respectively corresponds to one of the second ring armature units, and each of the control units includes N First control switch and N second Controlling the switch, and the (j)th first control switch is connected between the first-order (j) second wire in the first-current first-polar power source and the corresponding second-ring armature unit, (j) a second control switch is connected between the second-polar power source and the second (j) second wire of the second ring-shaped armature unit corresponding thereto, the DC first-polar power source and the DC-number The polarity of the bipolar power source is opposite, wherein (j) is a natural number and 1 ≦ (j) ≦ N; a magnetic unit is disposed in the first ring armature unit, the magnetic unit has M pairs of magnetic poles, and the magnetic unit The first annular armature unit and the magnetic unit are controllably rotatable relative to each other; and a position sensor for detecting the position of the magnetic unit and outputting information of the position to the control unit, thereby The control unit outputs a control signal to control the opening or closing of each of the first and second control switches in the control units. The brushless DC rotating electrical machine according to claim 8, wherein the magnetic unit is a permanent magnet magnet or a magnetostrictive magnet. The brushless DC rotating electrical machine according to claim 9, wherein the position sensor is a resolver, an encoder, a Hall sensor, a photointerrupter or a photoelectric sensor. The brushless DC rotating motor according to claim 10, further comprising a first noise suppression circuit (snubber) disposed between the DC first polarity power source and the first control switch, and a first A snubber is disposed between the DC second polarity power supply and the second control switch. The brushless DC rotating electrical machine according to any one of claims 8 to 11, wherein the first armature coil and the second armature coil are wave-wound and stacked ( The lap winding) or the frog-leg winding method is completed. The brushless DC rotating electrical machine of claim 12, wherein the first annular armature unit is an annular stator and the magnetic unit is a magnetic rotor. The brushless DC rotating electrical machine of claim 12, wherein the first annular armature unit is an annular rotor and the magnetic unit is a magnetic stator.