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1. 发明专利

JP2002064950A MOTOR, MANUFACTURING METHOD THEREFOR, AND ELECTRIC VACUUM CLEANER 失效
公开(公告)号：JP2002064950A
公开(公告)日：2002-02-28
申请号：JP2000248515
申请日：2000-08-18
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YOSHINO ISATO , KAWAGUCHI HITOSHI , TAKAHASHI YUJI
IPC分类号： A47L9/00 , H02K1/17 , H02K1/26 , H02K5/04 , H02K15/02 , H02K23/04
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet-field dc motor that is inexpensive and efficient. SOLUTION: The permanent magnet-field dc motor comprises a plurality of stator cores arranged so that the stator cores are adjacent to one another in the circumferential direction and form a circle, a plurality of field magnets secured inside the stator cores opposite to one another so that the substantially center position of the width thereof in the circumferential direction is positioned between the adjacent stator cores, and a rotor placed inside the plurality of the field magnets with a gap in-between and provided between slots with armature winding.

2. 发明专利

JP2001339974A CONTROL DEVICE FOR PERMANENT MAGNET FIELD DC MOTOR AND VACUUM CLEANER 失效
公开(公告)号：JP2001339974A
公开(公告)日：2001-12-07
申请号：JP2000158402
申请日：2000-05-29
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YOSHINO ISATO , KAWAGUCHI HITOSHI , TAKAHASHI YUJI , IWAHARA AKIHIRO
IPC分类号： A47L9/00 , A47L9/28 , H02P7/29 , H02P5/17
摘要： PROBLEM TO BE SOLVED: To provide a control device for a permanent magnet field DC motor with high efficiency at a low cost. SOLUTION: The permanent magnet field DC motor has field magnets which are fixed inside a stator core facing each other, a rotor which is disposed inside these field magnets and provided with armature windings in slots, a commutator which is connected to the armature windings and brushes which supply power by contacting to this commutator. In the permanent magnet field DC motor, a rectifier which supplies the permanent magnet field DC motor power which rectifies an AC power source by a rectifier circuit, a switch which is serially connected with the DC motor, a voltage detector which detects the voltage of the power source, and a controller which controls the power source supplied to the DC motor by controlling the switch responding to the detected value by the voltage detector are provided.

3. 发明专利

JP2001251798A COMMUNICATOR MOTOR 失效
公开(公告)号：JP2001251798A
公开(公告)日：2001-09-14
申请号：JP2000055540
申请日：2000-03-01
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H02K3/50 , H02K13/02
摘要： PROBLEM TO BE SOLVED: To provide a communicator motor. SOLUTION: This motor includes a rotor 7 and a stator 11 in a frame 1, a stator winding 13 wound about the stator 11, a commutator 10 mounted on the rotor 7, a connecting terminal 17 which is fitted on the stator 11 and to which the end of the stator winding 13 is connected, a tubular part 27 which slidably stores a brush 24 which supplies electric current to connecting terminal hardware 25 connected electrically to the connecting terminal 17 and the stator winding 13, and a brush 21 mounted so as to be inserted and drawn in the radial direction of the frame 1. The connecting terminal 17 is disposed, with respect to the side of the rotational direction of the rotor 7.

4. 发明专利

JP2001231221A COMMUTATOR MOTOR 失效
公开(公告)号：JP2001231221A
公开(公告)日：2001-08-24
申请号：JP2000040962
申请日：2000-02-18
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H02K13/00 , H02K13/04
摘要： PROBLEM TO BE SOLVED: To provide a commutator motor that assures connection between a connecting terminal in the stator side and a terminal connecting metal of a brush device. SOLUTION: This commutator motor is provided with a brush device 21 comprising a rotor 7 and a stator 11 accommodated within a frame 1, a stator winding 13 wound to the stator 11, a commutator 10 provided to the rotor 7, a connecting terminal 17 provided to the stator 11 for connection of end part of the stator winding 13, a cylindrical part 25 for slidably accommodating a brush 24 to supply a current to the stator winding 13 by placing in contact the connecting terminal metal 26 connected to the connecting terminal 17 and the commutator 10 and an inserting hole 30 for inserting the cylindrical part 25. As a result, the connecting terminal metal 26 is integrally formed with the cylindrical part 25 and are then inserted into a through-hole 30.

5. 发明专利

JP2001145289A ELECTRIC BLOWER AND METHOD OF MANUFACTURING THE SAME 失效
公开(公告)号：JP2001145289A
公开(公告)日：2001-05-25
申请号：JP32383599
申请日：1999-11-15
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： F04D29/62 , H02K3/38 , H02K15/00 , H02K15/095
摘要： PROBLEM TO BE SOLVED: To prevent a shielding board from falling down onto the side of the rotor of an electric blower, even if a stator coil is wound applying pressure so as to make its winding diameter smaller, and winding pressure is applied to the shielding board. SOLUTION: A shielding board 14 is arranged inside a stator coil 2a, and the stator coil 2a is wound so that a gap may be formed between the stator coil 2a and the shielding board 14. Besides, an isolating part 14a where the stator coil 2a is exposed is formed in the center part of the shielding board 14.

6. 发明专利

JPH11178253A ARMATURE CORE OF ROTATING ELECTRIC MACHINE 失效
公开(公告)号：JPH11178253A
公开(公告)日：1999-07-02
申请号：JP33721297
申请日：1997-12-08
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI , MATSUMOTO MASARU , NAKAHARA YUJI
IPC分类号： H02K1/26
摘要： PROBLEM TO BE SOLVED: To prevent the generation of noise and an aerodynamic loss of an armature, to reduce the size, and to increase the efficiency and power by causing the edges in a direction perpendicular to the direction of rotation of a core, of the T-shaped claw of the tip part of each tooth, to be in the shape of a curved surface or a slant surface respectively. SOLUTION: The armature core 17A of a rotating electric machine has a shaft hole 18 for inserting and fixing a shaft in the center, and in its peripheral part a plurality of teeth 21 having T-shaped claws at their tips and stretching out around the shaft hole 18 radially are formed, and the part between each tooth 21 and the next forms a slot 22 for winding an armature coil in. The peripheral-side edge 31 being in the front part of the direction of rotation, out of those in a direction perpendicular to the direction of rotation of a core, of the T-shaped claw of each tooth is formed into the shape of R. Consequently, the flow of the wind does not collide at the edge end surfaces, and it flows backwards smoothly along the R-shaped parts of the peripheral side edges 31, and it becomes possible to reduce sharply the aerodynamic pressure loss of the armature caused by high-speed rotation, and eddy current losses in the armature core 17A and structures in the peripheries of the end parts of the armature coil.

7. 发明专利

JP2001112196A MOTOR-DRIVEN BLOWER 失效
公开(公告)号：JP2001112196A
公开(公告)日：2001-04-20
申请号：JP28907499
申请日：1999-10-12
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YASUJIMA TAKEHIKO , TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H02K1/18 , H02K1/14 , H02K7/14
摘要： PROBLEM TO BE SOLVED: To obtain a motor-driven blower, in which the winding operation of an exciting winding and the compressively engaging operation of a stator to a bracket can be performed respectively with good efficiency, by a method where a pair of magnetic pole cores constituting the stator are fixed by an insulating material member so as to be integrated. SOLUTION: A stator 2 which is constituted in a nearly quadrangular shape is provided with magnetic pole members 6 which comprise U-shaped magnetic poles 4 nearly at the center. The stator is provided with magnetic pole cores 7, which are formed by laminating and fixing the magnetic pole members 6. The stator is provided with exciting windings A which are wound on the magnetic poles 4. The stator is provided with a yoke core 10, in which the magnetic poles 4 are formed so as to be faced and in which yoke members 9 used to connect both ends of the magnetic cores 7 are laminated and formed. Before the magnetic pole cores 7 and the yoke core 10 are connected, the magnetic pole cores 7 which are arranged to be faced are fixed by coupling members 8, each composed of an insulating material.

8. 发明专利

JPH10336973A COMMUTATOR MOTOR 失效
公开(公告)号：JPH10336973A
公开(公告)日：1998-12-18
申请号：JP13696697
申请日：1997-05-27
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YASUJIMA TAKEHIKO , TAKAHASHI YUJI , OTAKA SHUICHI , NOGUCHI YOSHIHIRO
IPC分类号： H01R39/22 , H02K13/00 , H02K23/00
摘要： PROBLEM TO BE SOLVED: To obtain a commutator motor in which lubricant can be applied surely and stably to a commutator and can be held for a long time. SOLUTION: A carbon brush 8 is fixed to one end of a coil spring 10 and biased to slide on a commutator and a current is passe through a lead wire 12 fixed with the carbon brush 8. In such a commutator motor, a box 14 encapsulating a lubricant 15 is disposed in the vicinity of the other end of the coil spring 10 and a transmitter 16 is fixed along the lead wire 12. The lubricant 15 is applied directly to the surface of the communicator 4 by immersing one end part of the transmitter 16 and fixing the other end thereof to the carbon brush 8.

9. 发明专利

JPH09322484A COMMUTATOR MOTOR AND ITS MANUFACTURE 失效
公开(公告)号：JPH09322484A
公开(公告)日：1997-12-12
申请号：JP13294596
申请日：1996-05-28
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H02K13/04 , H02K23/00
摘要： PROBLEM TO BE SOLVED: To make it possible to stably secure a conductor spacing of a commutator hook portion without increasing the outer diameter of a commutator by forming the outer peripheral faces of hook root winding portion for armature winding provided at both the sides of the hook root portion to different height level differences. SOLUTION: In a commutator of a commutator motor, a synthetic resin portion 5 functions as a pedestal for preventing deformation at the root of a hook 3 at the time of thermal welding connection by fusing while pressuring the armature winding 6 by the commutator hook 3 and the armature winding 6. Also, a wound wire portion 4 and synthetic resin portion 5 are processed low in axial direction by the cutting during shape processing of the hook 3 so that they do not disturb the connections of armature winding 6. Also, the outer peripheral faces of the hook rook winding portion 4 have different level differences at the right and left, so that a stable conductor spacing can be secured without decreasing the cross sectional area of the hook 3. Particularly, the conductor spacing can be secured easily even though the diameter of winding becomes larger.

10. 发明专利

JPH08242559A CARBON BRUSH FOR ROTARY MACHINE 失效
公开(公告)号：JPH08242559A
公开(公告)日：1996-09-17
申请号：JP4314795
申请日：1995-03-02
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H01R39/26 , H02K13/00
摘要： PURPOSE: To prevent the concentration of load currents to the surface of a carbon brush so as to improve the commutation of a commutator by removing metallic films formed on the surfaces of the brush parallel to the direction of rotation of the commutator in belt-like states from the front end face side to the rear end face side, thus exposing the base material of the brush. CONSTITUTION: When the entire surface of a carbon brush is coated with a metallic film, the commutation of a commutator tends to become worse due to the concentration of load currents to the low-resistance metallic film. Therefore, the base material 1 of the carbon brush is exposed by removing metallic films 4 formed on the upper and lower surfaces 9 of the base material 1 parallel to the direction of rotation of a commutator 6 in belt-like states from the front end face side to the rear end face side. When the films 4 are removed in such a way, the commutation of the commutator 6 can be improved, because low- resistance sections and high-resistance sections are separately formed on the upper and lower surfaces 9 and the concentration of load currents to rotational- direction components can be prevented, and then, the occurrence of short-circuit currents can be reduced and the commutator 6 can follow magnetic flux variation without delay.

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