JP6265566B2 - Rotating electric machine adjusting device and rotating electric machine adjusting method - Google Patents

Description

  The present invention relates to a rotating electrical machine adjusting device and a rotating electrical machine adjusting method.

  There has been proposed a stator for a rotating electric machine formed by arranging divided stators in an annular shape. This stator is press-fitted or shrink-fitted inside a cylindrical holder. That is, the stator is held with its outer periphery being tightened by a holder (see, for example, Patent Document 1 or 2).

  Along with the torque output of the rotating electrical machine, torque in the opposite direction acts (reacts) on the stator. At this time, it is necessary to prevent slippage between the stator and the holder. For this reason, the fastening margin between the stator and the holder is increased and fixed so that slip does not occur even at the maximum torque of the rotating electrical machine.

JP 2014-96971 A JP 2006-115581 A

However, if the interference between the stator and the holder is always increased, the residual stress of the stator is always increased. Accordingly, there is a problem that the iron loss of the stator remains large.
Accordingly, an object of the present invention is to provide a rotating electrical machine adjusting device and a rotating electrical machine adjusting method capable of reducing iron loss of the stator while preventing slipping between the stator and the holder.

In order to solve the above problems, the present invention employs the following aspects.
A rotating electrical machine adjusting device (for example, the rotating electrical machine adjusting device 5 in the embodiment) in the present invention includes a stator (for example, the stator 20 in the embodiment) of the rotating electrical machine (for example, the rotating electrical machine 1 in the embodiment), and the stator. A holder (for example, holder 30 in the embodiment) that holds the stator by tightening the outer periphery of the stator, and a tightening margin adjusting mechanism (for example, a tightening margin adjusting mechanism 40 in the embodiment) that adjusts the tightening margin between the stator and the holder. The fastening allowance adjusting mechanism adjusts the fastening allowance based on information on the torque of the rotating electrical machine.
It is desirable that the tightening margin adjusting mechanism reduce the tightening margin as the torque of the rotating electrical machine is smaller.

  In this configuration, the interference is adjusted based on information on the torque of the rotating electrical machine. Therefore, the interference between the stator and the holder can be adjusted so that the slip torque that generates a slip between the stator and the holder becomes larger than the torque that acts on the stator in accordance with the torque output of the rotating electrical machine. Therefore, slip between the stator and the holder can be prevented. Also, the smaller the torque of the rotating electrical machine, the smaller the tightening allowance. Thereby, the residual stress of a stator becomes small and the iron loss of a stator becomes small. As described above, the iron loss of the stator can be reduced while preventing the slip between the stator and the holder.

  The stator may be formed by arranging a plurality of divided stators (for example, the divided stator 21 in the embodiment) in an annular shape.

  In this configuration, since the split stator is employed, the coil winding work is facilitated and the coil space factor is increased. Moreover, the outer periphery of the stator formed by arranging a plurality of divided stators in an annular shape is fastened with a holder. Thereby, the stator which consists of a some division | segmentation stator can be hold | maintained reliably.

  The tightening adjustment mechanism includes a servo motor (for example, the servo motor 52 in the embodiment), a male screw portion (for example, the male screw portion 54 in the embodiment) that is rotated by the servo motor, and the male screw portion. A first end portion of the holder that is divided in the circumferential direction (for example, the first standing portion 42a in the embodiment). The female screw portion may be fixed to a second end portion (for example, the second upright portion 42b in the embodiment) different from the first end portion of the holder divided in the circumferential direction. .

  In this configuration, the tightening allowance between the holder and the stator can be adjusted by rotating the servo motor forward or backward. Particularly, since the servo motor can control the rotational position with high accuracy, the tightening allowance between the holder and the stator can be adjusted with high accuracy. Moreover, the interference adjusting mechanism can be constructed at a low cost with a simple configuration.

  The method for adjusting a rotating electrical machine according to the present invention is characterized in that a tightening margin between a stator of the rotating electrical machine and a holder for holding the stator by tightening an outer periphery of the stator is adjusted based on information on the torque of the rotating electrical machine. To do.

  With this configuration, it is possible to reduce the iron loss of the stator while preventing the slip between the stator and the holder.

  In the present invention, the interference is adjusted based on information on the torque of the rotating electrical machine. Therefore, the interference between the stator and the holder can be adjusted so that the slip torque that generates a slip between the stator and the holder becomes larger than the torque that acts on the stator in accordance with the torque output of the rotating electrical machine. Therefore, slip between the stator and the holder can be prevented. Also, the smaller the torque of the rotating electrical machine, the smaller the tightening allowance. Thereby, the residual stress of a stator becomes small and the iron loss of a stator becomes small. As described above, the iron loss of the stator can be reduced while preventing the slip between the stator and the holder.

It is a disassembled perspective view of a rotary electric machine and a holder. It is a schematic block diagram of a fastening allowance adjustment mechanism. 1 is a block diagram of a vehicle system including an adjustment device for a rotating electrical machine in an embodiment. It is a graph which shows the relationship between interference and slip torque. It is a flowchart of the adjustment method of the rotary electric machine in embodiment. It is a schematic block diagram of the modification of an interference adjustment mechanism.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a rotating electrical machine adjusting device and a rotating electrical machine adjusting method according to the present invention will be described with reference to the accompanying drawings.

(Rotating electric machine, holder)
FIG. 1 is an exploded perspective view of a rotating electrical machine and a holder. FIG. 2 is a schematic configuration diagram of the interference allowance adjusting mechanism, and is a part of a cross-sectional view perpendicular to the rotation axis of the rotating electrical machine. As shown in FIG. 1, the rotating electrical machine (motor) 1 of the embodiment includes a rotor (rotor) 10 and a stator (stator) 20 disposed along the outer periphery of the rotor 10.

  The rotor 10 is formed in a disc shape. The rotor 10 is formed by laminating a plurality of electromagnetic steel plates. In the center of the rotor 10, a hole into which a rotating shaft (shaft) is fitted is provided. As shown in FIG. 2, a slot 12 penetrating in the axial direction is provided in the peripheral portion of the rotor 10. A permanent magnet 14 is inserted into the slot 12.

  As shown in FIG. 1, the stator 20 is formed by arranging a plurality of divided stators 21 in an annular shape. As shown in FIG. 2, the split stator 21 includes a split stator core 23 and a coil 28. The divided stator core 23 is formed by laminating a plurality of electromagnetic steel plates. The divided stator core 23 includes a divided yoke 24 and teeth 25.

The divided yoke 24 is formed in an arc shape. When the plurality of divided stators 21 are arranged in an annular shape, the divided yokes 24 are connected in an annular shape to form a yoke. A convex portion 24 a is formed at the first end portion in the circumferential direction of the divided yoke 24. A concave portion 24 b is formed at a second end portion in the circumferential direction of the divided yoke 24. When the plurality of divided stators 21 are arranged in an annular shape, the convex portion 24a and the concave portion 24b are engaged with each other. As a result, the plurality of divided stators 21 are positioned in the radial direction of the rotating electrical machine 1.
The teeth 25 protrude from the central portion in the circumferential direction of the split yoke 24 toward the radial center of the rotating electrical machine 1.

  The coil 28 is formed by winding a copper wire around the tooth 25. That is, the rotating electrical machine of this embodiment employs the concentrated winding stator 20. By winding the coil 28 around the teeth 25 of the split stator 21, the coil 28 can be wound more easily than when the coils 28 are wound around the teeth 25 of the annular stator 20. Moreover, the space factor of the coil 28 in the slot between the adjacent teeth 25 can be increased. An insulator 27 made of an insulating material such as a resin is disposed between the coil 28 and the tooth 25.

As shown in FIG. 1, the holder 30 includes a holder main body 32 disposed along the outer periphery of the stator 20 and a flange portion 34. The holder 30 is formed by press forming a steel plate.
The holder main body 32 is formed in a cylindrical shape. The inner diameter of the holder main body 32 is formed substantially equal to the outer diameter of the stator 20. The flange portion 34 is formed at the first end portion in the axial direction of the holder main body 32. An attachment hole 36 for attaching the holder 30 to the outside is formed in the flange portion 34.

(Tightening allowance adjusting mechanism, rotating electrical machine adjusting device)
FIG. 3 is a block diagram of a vehicle system including the rotating electrical machine adjusting apparatus according to the embodiment. In addition to the rotary electric machine 1 and the holder 30 described above, the adjusting device 5 for the rotary electric machine includes a tightening allowance adjusting mechanism 40 that adjusts the tightening allowance between the stator 20 and the holder 30. The interference adjusting mechanism 40 includes a dividing portion 42 of the holder 30 and a servo motor unit 50.

  As shown in FIG. 2, the dividing portion 42 divides the holder 30 (the holder main body 32 and the flange portion 34) in the circumferential direction. The dividing part 42 includes a first standing part 42a and a second standing part 42b. The first upright portion 42 a and the second upright portion 42 b include a plane that is substantially parallel to a plane that includes the central axis of the holder body 32. The first upright portion 42a and the second upright portion 42b stand up from the outer periphery of the holder body 32 toward the outer side in the radial direction. The first upright portion 42 a is formed at the first end portion of the holder body 32 that is divided in the circumferential direction by the dividing portion 42. The second upright portion 42 b is formed at the second end portion of the holder main body 32 that is divided in the circumferential direction by the dividing portion 42.

As shown in FIG. 3, the servo motor unit 50 includes a servo motor 52, a male screw portion 54, a female screw portion 56, an encoder 58, a servo motor controller 72, and a servo motor inverter 74.
As shown in FIG. 2, the servo motor 52 is fixed to the first upright portion 42 a of the dividing portion 42. The female screw part (nut) 56 is fixed to the second upright part 42 b of the dividing part 42. The male screw portion (bolt) 54 is connected to the rotating shaft of the servo motor 52 and is screwed into the female screw portion 56. Thereby, the male screw part 54 and the female screw part 56 function as a feed screw device. A ball screw device in which a ball is disposed between the male screw portion 54 and the female screw portion 56 may be employed.

  When the servo motor 52 rotates the male screw portion 54 in the forward direction, the male screw portion 54 pulls the female screw portion 56 toward the servo motor 52. Then, the 1st standing part 42a and the 2nd standing part 42b approach, and the internal diameter of the holder main body 32 becomes small. Thereby, the fastening allowance of the holder 30 and the stator 20 becomes large. On the other hand, when the servo motor 52 reversely rotates the male screw portion 54, the male screw portion 54 pulls the female screw portion 56 away from the servo motor 52. Then, the 1st upright part 42a and the 2nd upright part 42b separate, and the internal diameter of the holder main body 32 becomes large. Thereby, the fastening allowance of the holder 30 and the stator 20 becomes small. In this manner, the interference between the holder 30 and the stator 20 can be adjusted by rotating the servo motor 52 forward or backward to a predetermined rotational position.

  As shown in FIG. 3, the servo motor controller 72 creates an operation command for rotating the rotation shaft of the servo motor 52 to a predetermined rotation position. The servo motor controller 72 outputs a pulse signal corresponding to the created operation command to the servo motor inverter 74. The servo motor inverter 74 converts the pulse signal into a drive current for the servo motor 52 and outputs it to the servo motor 52. The servo motor 52 rotates the rotation shaft to a predetermined rotation position according to the drive current. The encoder 58 detects the rotational position of the servo motor 52 and outputs it to the servo motor controller 72. Thereby, the rotational position of the servo motor 52 is feedback-controlled.

  As shown in FIG. 3, the rotating electrical machine adjusting device 5 described above constitutes a part of the vehicle system 60. The vehicle system 60 includes a high voltage battery (BATT) 62, a motor controller 64, a power drive unit (PDU) 65, a downverter (D / V) 67, and a 12V battery (12V BATT) 68.

  The motor controller 64 calculates the output torque of the rotating electrical machine 1 based on the accelerator opening of the vehicle. The motor controller 64 outputs a torque instruction signal corresponding to the output torque of the rotating electrical machine 1 to the power drive unit 65. The power drive unit 65 converts the torque instruction signal into a drive current for the rotating electrical machine 1 and outputs it to the rotating electrical machine 1.

  The motor controller 64 also outputs a torque instruction signal for the rotating electrical machine 1 to the servo motor controller 72. The servo motor controller 72 calculates a necessary tightening margin (hereinafter referred to as “necessary tightening allowance”) between the holder 30 and the stator 20 based on a torque instruction signal (information on torque) of the rotating electrical machine 1. The servo motor controller 72 calculates the rotational position (hereinafter referred to as “required rotational position”) of the servo motor necessary for realizing the necessary tightening allowance. The servo motor controller 72 outputs an operation command for rotating the servo motor 52 to the necessary rotation position to the servo motor inverter 74.

  When output torque is applied to the rotor 10 of the rotating electrical machine 1, torque in the opposite direction is applied (reacted) to the stator 20. At this time, it is necessary to prevent slippage between the stator 20 and the holder 30. For this purpose, a torque (hereinafter referred to as “slip”) that generates slip between the stator 20 and the holder 30 rather than a torque (hereinafter referred to as “working torque”) acting on the stator 20 in accordance with the torque output of the rotating electrical machine 1. Increase the torque. The slip torque is determined by the fastening allowance between the stator 20 and the holder 30. Therefore, the servo motor controller 72 calculates a necessary tightening margin based on a torque instruction signal corresponding to the output torque of the rotating electrical machine 1 so that the slip torque is larger than the operating torque.

  The servo motor controller 72 calculates an operating torque based on a torque instruction signal corresponding to the output torque of the rotating electrical machine 1. The acting torque is calculated by adding the torque corresponding to the moment of inertia (inertia), torque ripple, torque variation, and magnet temperature variation to the output torque of the rotating electrical machine 1. The servo motor controller 72 calculates the necessary tightening allowance so that the slip torque is larger than the torque value obtained by adding the safety factor to the applied torque.

  FIG. 4 is a graph showing the relationship between the tightening allowance and the slip torque. As shown in FIG. 4, the slip torque is normally distributed with respect to the tightening allowance. The servo motor controller 72 calculates the necessary tightening allowance so that the slip torque corresponding to the normal distribution of −3σ (σ is the standard deviation) matches the torque value obtained by adding the safety factor to the applied torque. If the necessary tightening allowance is calculated in this way, the slip torque becomes larger than the operating torque.

  The required tightening allowance may be calculated by classifying the operating torque into a stepped torque region. For example, when the applied torque belongs to the low torque region, the torque value obtained by adding the safety factor to the representative torque (for example, the maximum torque) in the low torque region is TL. Therefore, the necessary tightening allowance FL is calculated so that the slip torque corresponding to −3σ of the normal distribution becomes TL. Similarly, when the acting torque belongs to the middle torque region, the necessary tightening allowance FM is calculated so that the slip torque becomes TM. Further, when the applied torque belongs to the high torque region, the necessary tightening allowance FH is calculated so that the slip torque becomes TH.

The adjustment method of the rotating electrical machine in the embodiment will be described with reference to FIG.
FIG. 5 is a flowchart of a method for adjusting a rotating electrical machine in the embodiment.
In S <b> 80, the encoder 58 detects the initial rotational position of the servo motor 52 and outputs it to the servo motor controller 72.

  In S <b> 82, the servo motor controller 72 determines whether the torque instruction value corresponding to the torque instruction signal input from the motor controller 64 is in the low torque region. In the servo motor controller 72, a low torque region range and a medium torque region range are stored in advance. The servo motor controller 72 determines whether the input torque instruction value is within the range of the low torque region stored in advance. If the determination in S82 is Yes, the process proceeds to S83.

In S <b> 83, the servo motor controller 72 calculates a necessary tightening allowance of the holder 30. The servo motor controller 72 stores in advance a first table in which the correspondence relationship between the torque area and the necessary tightening allowance is recorded. For example, the necessary tightening allowance FL (see FIG. 4) corresponding to the slip torque TL necessary for the low torque region is recorded in the first table. The servo motor controller 72 calculates the necessary tightening allowance FL corresponding to the low torque region with reference to the first table.
The servo motor controller 72 may linearly calculate the necessary tightening allowance corresponding to the torque instruction value with reference to FIG.

In S <b> 84, the servo motor controller 72 calculates the rotational position (hereinafter referred to as “required rotational position”) of the servo motor 52 necessary for realizing the necessary tightening allowance FL. The servo motor controller 72 stores in advance a second table that records the corresponding relationship between the required tightening allowance FL and the required rotational position. The servo motor controller 72 calculates the necessary rotational position corresponding to the necessary tightening allowance FL with reference to the second table. The servo motor controller 72 may calculate the required rotational position by substituting the required tightening allowance FL into the relational expression between the required tightening allowance and the required rotational position.
The servo motor controller 72 may directly calculate the necessary rotational position from the torque instruction value without passing through the necessary tightening allowance.

In S <b> 86, the encoder 58 detects the current rotational position of the servo motor 52 and outputs it to the servo motor controller 72.
In S <b> 87, the servo motor controller 72 outputs an operation command for the servo motor 52. Specifically, the servo motor controller 72 calculates the rotational position difference between the necessary rotational position and the current rotational position. The servo motor controller 72 outputs an operation command for rotating the servo motor 52 by the calculated rotational position difference to the servo motor inverter 74. The servo motor inverter 74 converts the operation command into a drive current for the servo motor 52 and outputs it to the servo motor 52.

  In S88, the servo motor controller 72 determines whether the operation of the servo motor 52 is completed. Specifically, the encoder 58 detects the current rotational position of the servo motor 52 and outputs it to the servo motor controller 72. The servo motor controller 72 calculates the rotational position difference between the required rotational position and the current rotational position. If the rotational position difference is greater than or equal to a predetermined value, it is determined that the operation of the servo motor 52 has not been completed (No in S88). In this case, the processing from S86 is repeated. If the rotational position difference is less than the predetermined value, it is determined that the operation of the servo motor 52 has been completed (Yes in S88), and the process ends.

If the determination in S82 is No, the process proceeds to S92.
In S92, the servo motor controller 72 determines whether the torque instruction value input from the motor controller 64 is in the middle torque region. Specifically, the servo motor controller 72 determines whether the input torque instruction value is within the range of the intermediate torque region stored in advance. If the determination in S92 is Yes, the process proceeds to S93.

In S93, the servo motor controller 72 refers to the first table and calculates a necessary tightening allowance corresponding to the intermediate torque region. For example, the necessary tightening allowance FM (see FIG. 4) corresponding to the slip torque TM necessary for the intermediate torque region is recorded in the first table.
In S94, the servo motor controller 72 refers to the second table and calculates a necessary rotational position for realizing the necessary tightening allowance FM. In the second table, the necessary rotational position corresponding to the necessary tightening allowance FM is recorded.
Thereafter, the processing from S86 onward is performed.

  If the determination in S92 is No, the process proceeds to S97. In this case, the servo motor controller 72 determines that the torque instruction value input from the motor controller 64 is in the high torque region.

In S97, the servo motor controller 72 refers to the first table and calculates a necessary tightening allowance corresponding to the high torque region. For example, the necessary tightening allowance FH (see FIG. 4) corresponding to the slip torque TH necessary for the high torque region is recorded in the first table.
In S98, the servo motor controller 72 refers to the second table and calculates a necessary rotational position for realizing the necessary tightening allowance FH. In the second table, a necessary rotational position corresponding to the necessary tightening allowance FH is recorded.
Thereafter, the processing from S86 onward is performed. The adjustment process of the rotating electrical machine is thus completed.

As described in detail above, the rotating electrical machine adjusting device 5 in the present embodiment includes the stator 20 of the rotating electrical machine 1, the holder 30 that holds the stator 20 by tightening the outer periphery of the stator 20, the stator 20 and the holder 30. A tightening allowance adjusting mechanism 40 for adjusting the tightening allowance, and the tightening allowance adjusting mechanism 40 is configured to adjust the allowance each time based on information on the torque of the rotating electrical machine 1. It is desirable that the tightening adjustment mechanism 40 has a smaller tightening margin as the torque of the rotating electrical machine 1 is smaller.
The method for adjusting a rotating electrical machine according to the present invention is configured to adjust the tightening margin between the stator 20 of the rotating electrical machine 1 and the holder 30 that holds the stator 20 by tightening the outer periphery of the stator 20 based on information about the torque of the rotating electrical machine 1. It was.

  In this configuration, the tightening allowance is adjusted each time based on information on the torque of the rotating electrical machine 1. Therefore, the stator 20 and the holder 30 are tightened so that the slip torque that generates a slip between the stator 20 and the holder 30 is larger than the torque that acts on the stator 20 with the torque output of the rotating electrical machine 1. You can adjust the bill. Therefore, the slip between the stator 20 and the holder 30 can be prevented. Further, as the torque of the rotating electrical machine 1 is smaller, the tightening margin is reduced. Thereby, the residual stress of the stator 20 becomes small and the iron loss of the stator 20 becomes small. As described above, the iron loss of the stator 20 can be reduced while preventing the slip between the stator 20 and the holder 30.

The stator 20 may be formed by arranging a plurality of divided stators 21 in an annular shape.
In this configuration, since the split stator 21 is employed, the coil 28 is easily wound and the space factor of the coil 28 is increased. In addition, the outer periphery of the stator 20 formed by arranging a plurality of divided stators 21 in an annular shape is fastened by a holder 30. Thereby, the stator which consists of a some division | segmentation stator 21 can be hold | maintained reliably.

  The tightening adjustment mechanism 40 includes a servo motor 52, a male screw portion 54 rotated by the servo motor 52, and a female screw portion 56 screwed into the male screw portion 54. The servo motor 52 is divided in the circumferential direction. The female screw part 56 may be fixed to the second standing part 42b of the holder 30 that is divided in the circumferential direction.

  In this configuration, the interference between the holder 30 and the stator 20 can be adjusted by rotating the servo motor 52 forward or backward. In particular, since the servo motor 52 can control the rotational position with high accuracy, the tightening allowance between the holder 30 and the stator 20 can be adjusted with high accuracy. Moreover, the interference adjusting mechanism 40 can be constructed at a low cost with a simple configuration.

(Modification of tightening adjustment mechanism)
FIG. 6 is a schematic configuration diagram of a modified example of the interference adjusting mechanism, and is a part of a cross-sectional view perpendicular to the rotating shaft of the rotating electrical machine.
The interference adjusting mechanism 40 in the embodiment shown in FIG. 2 includes a servo motor unit 50. On the other hand, the interference adjusting mechanism 140 in the modification shown in FIG. 6 includes an actuator unit 150. Detailed description of portions having the same configuration as that of the above-described embodiment will be omitted.

  As shown in FIG. 6, the actuator unit 150 includes an actuator 152 and a pump 158. The actuator 152 includes a cylinder 153, a piston 154, a rod 156, and a pressure chamber 157.

The actuator 152 is, for example, a hydraulic actuator. The cylinder 153 is formed in a cylindrical shape. The piston 154 is formed in a disc shape. The outer peripheral surface of the piston 154 is in contact with the inner peripheral surface of the cylinder 153. The rod 156 is formed in a rod shape. The first end of the rod 156 is fixed to the piston 154 inside the cylinder 153. The second end portion of the rod 156 extends through the end surface of the cylinder 153 to the outside of the cylinder 153. The pressure chamber 157 is formed on one side of the piston 154 inside the cylinder 153. The pump 158 is connected to the pressure chamber 157 and supplies a working fluid (for example, hydraulic oil) to the pressure chamber 157.
The actuator 152 is fixed to the first standing part 42a of the dividing part 42. The rod 156 is fixed to the second standing part 42 b of the dividing part 42.

  When the working fluid is supplied from the pump 158 to the pressure chamber 157, the piston 154 and the rod 156 move in the direction in which the volume of the pressure chamber 157 increases. Then, the 1st standing part 42a and the 2nd standing part 42b approach, and the internal diameter of the holder main body 32 becomes small. Thereby, the fastening allowance of the holder 30 and the stator 20 becomes large. On the other hand, when the working fluid is discharged from the pressure chamber 157, the piston 154 and the rod 156 move in a direction in which the volume of the pressure chamber 157 decreases. Then, the 1st upright part 42a and the 2nd upright part 42b separate, and the internal diameter of the holder main body 32 becomes large. Thereby, the fastening allowance of the holder 30 and the stator 20 becomes small. In this way, by controlling the supply and discharge of the working fluid to and from the pressure chamber 157, the tightening allowance between the holder 30 and the stator 20 can be adjusted.

It should be noted that the technical scope of the present invention is not limited to the above-described embodiment, and includes various modifications made to the above-described embodiment without departing from the spirit of the present invention. That is, the configuration of the above-described embodiment is merely an example, and can be changed as appropriate.
In the above-described embodiment, the stator 20 is formed by arranging the divided stators 21 in an annular shape, but a stator formed continuously in an annular shape may be employed.
In the above-described embodiment, the servo motor controller 72 calculates the necessary tightening allowance based on the torque instruction signal (instruction value). On the other hand, the necessary tightening allowance may be calculated based on the actually measured value of the output torque of the rotating electrical machine 1.

  DESCRIPTION OF SYMBOLS 1 ... Rotary electric machine, 5 ... Adjustment apparatus of rotary electric machine, 10 ... Rotor, 20 ... Stator, 21 ... Split stator, 30 ... Holder, 40, 140 ... Tightening adjustment mechanism, 42a ... 1st standing part (1st edge part) ), 42b... 2nd standing part (second end part) 52. Servo motor 54. Male thread part 56 56 Female thread part

Claims (5)

A stator of a rotating electric machine,
A holder for fastening the outer periphery of the stator to hold the stator;
A tightening allowance adjusting mechanism for adjusting a tightening allowance between the stator and the holder,
The interference allowance adjusting mechanism adjusts the interference allowance based on information on the torque of the rotating electrical machine.
Adjustment device for rotating electrical machines. The stator is formed by arranging a plurality of divided stators in an annular shape.
The adjusting device for a rotating electrical machine according to claim 1. The tightening allowance adjusting mechanism includes a servo motor, a male screw portion rotated by the servo motor, and a female screw portion screwed into the male screw portion,
The servo motor is fixed to the first end of the holder divided in the circumferential direction,
The female screw portion is fixed to a second end portion different from the first end portion of the holder divided in the circumferential direction.
The adjusting device for a rotating electrical machine according to claim 1 or 2. The tightening margin adjusting mechanism reduces the tightening margin as the torque of the rotating electrical machine is smaller.
The adjusting device for a rotating electrical machine according to any one of claims 1 to 3. Adjusting the tightening margin between the stator of the rotating electrical machine and the holder that holds the stator by tightening the outer periphery of the stator based on information on the torque of the rotating electrical machine;
Adjustment method for rotating electrical machines.

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