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11. 发明专利

JP2001238487A CONTROL UNIT FOR PERMANENT MAGNET FIELD TYPE DC MOTOR, AND ELECTRIC CLEANER 失效
公开(公告)号：JP2001238487A
公开(公告)日：2001-08-31
申请号：JP2000043386
申请日：2000-02-21
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YOSHINO ISATO , KAWAGUCHI HITOSHI , TAKAHASHI YUJI
IPC分类号： A47L9/28 , H02P7/06
摘要： PROBLEM TO BE SOLVED: To provide a control unit for a permanent magnet field type DC motor at a low cost which is high in efficiency. SOLUTION: This control unit is equipped with the permanent magnet field type DC motor, a rectifying mean which supplies a power source, in which an AC power source is rectified by a full-wave rectifier circuit to the DC motor, a bilateral switch connected with the AC input side of the rectifier circuit, and control means for controlling the power source supplied to the motor, by controlling the bilateral switch. The DC motor is provided with field magnets which are fixed facing each other inside a stator core, a rotor where an armature winding is wound between slots inside the field magnets, a commutator connected with the armature winding, and brushes which supply power, while coming into contact with the commutator.

12. 发明专利

JP2001157411A BRUSH HOLDER 失效
公开(公告)号：JP2001157411A
公开(公告)日：2001-06-08
申请号：JP32970299
申请日：1999-11-19
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H01R39/38 , H02K13/00
摘要： PROBLEM TO BE SOLVED: To provide a brush holder which improves its productivity by molding itself of synthetic resin or the like, and lowers the temperature of a brush holder and does not cause thermal transformation, by contriving the form of the section to hold a brush and cooling the brush. SOLUTION: A tubular brush holder 7 to hold a brush 5 in passage state and a frame fixer 8 to fix the brush holder 17 to the frame 1 of a commutator motor so that the tip of the brush 5 may slide on a commutator 4 are molded integrally of resin material, and a cavity is made between the inwall of this brush holder 7 and the brush 5, and an air current such as a blower discharge flow or the like is let flow to this cavity.

13. 发明专利

JP2001112198A MOTOR-DRIVEN BLOWER 失效
公开(公告)号：JP2001112198A
公开(公告)日：2001-04-20
申请号：JP28790199
申请日：1999-10-08
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 , F04D25/08 , F04D29/00 , F04D29/28 , F04D29/58 , H02K1/14 , H02K1/20 , H02K5/04 , H02K7/14
摘要： PROBLEM TO BE SOLVED: To obtain a motor-driven blower which increases air cooling effect, in which an electrical winding resistance is reduced, in which a copper wire is wound easily on a magnetic-pole core, and whose operating efficiency is high by improving the shape of a yoke core constituting a stator. SOLUTION: This motor-driven blower is composed of a fan part 2 and a motor part 9, and the stator 6 of the motor part 9 is fixed to the inner side of a bracket 5, whose cross section is circular. The stator 6 is constituted of a pair of opposite magnetic pole cross 14 which comprise exciting windings A, and the stator is constituted of a pair of arcuate yoke cores 18, both ends of which are connected respectively to both ends of the magnetic pole cores 14.

14. 发明专利

JP2000152527A ARMATURE OF MOTOR 失效
公开(公告)号：JP2000152527A
公开(公告)日：2000-05-30
申请号：JP32019998
申请日：1998-11-11
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI , YASUJIMA TAKEHIKO
IPC分类号： H02K1/04 , H02K1/18 , H02K1/28
摘要： PROBLEM TO BE SOLVED: To prevent a pin hole, or recession, or peeling of insulating coating, and enable a thick cable to be used for winding, by providing an armature with a hole in stack direction within the face between the slot of an armature iron core and the rotary shaft insertion hole. SOLUTION: This armature is provided with through holes 1a bored in, for example, four places in stack direction within the face between the slot of its iron core 1 and a rotary shaft insertion hole 4. Accordingly, in case that heat is added in the pretreatment of an electrostatic powder coating process to the armature iron core 1 provided with through holes 1a and the rotary shaft 3, the heat is conducted into the iron core 1 of the armature, too, through the through hole 1a, and the oil in between electromagnetic steel plates or the oil between the rotary shaft 3 inserted into the rotary shaft insertion hole 4 and the iron core 1 of the armature is gasified. Accordingly, the oil removal treatment can be performed enough and quickly, and a pin hole or recession ceases to occur in the insulating coating by electrostatic powder coating material, and the peeling of the insulating coating can be prevented.

15. 发明专利

JPH10271788A COMMUTATOR MOTOR 失效
公开(公告)号：JPH10271788A
公开(公告)日：1998-10-09
申请号：JP7016897
申请日：1997-03-24
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI , ARAI MITSUO
IPC分类号： H02K23/26
摘要： PROBLEM TO BE SOLVED: To attain high efficiency by reducing a copper loss without enlarging a wire diameter of an armature winding, by winding the single armature winding, wound at least one time relating to each pair of slots of an armature core with a winding start tin a symmetric position, around over a slot total periphery of the armature core. SOLUTION: Armature windings 2-1, 202 with winding starts in symmetric positions are simultaneously wound, the winding start of the winding 2-1 is connected to a commutator segment 3-1, with the winding in slots 1-1, 1-10 connected to a commutator segment 3-2. The winding 2-2 is connected to a commutator segment 3-12, with the winding in slots 1-12, 1-21 connected to a commutator segment 3-13. Similarly winding over a haft periphery of a slot 1, the winding 2-1 connected to the commutator segment 3-12, and the winding 2-2 is connected to the commutator segment 3-1. Thus by winding the armature winding 2-1 and 2-2 over the total periphery of the armature core slot 1, without thickening a wire diameter of the armature winding, high efficiency by reducing a copper loss can be attained.

16. 发明专利

JPH0998545A MOTOR-DRIVEN BLOWER AND ITS MANUFACTURE 失效
公开(公告)号：JPH0998545A
公开(公告)日：1997-04-08
申请号：JP25290295
申请日：1995-09-29
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OTAKA SHUICHI , NAKAHARA YUJI
IPC分类号： H02K1/18 , H02K1/14 , H02K3/34 , H02K5/22 , H02K15/02 , H02K15/08 , H02K15/095
摘要： PROBLEM TO BE SOLVED: To improve the efficiencies of a motor-driven blower and its manufacture, by so forming its stator core that the winding around its rotor is made easy and there is no possibility of the loosening and displacing of its stator. SOLUTION: Magnetic materials stamped pressingly are connected with each other in the form of a line to obtain a connected stator core 2 of a motor- driven blower. After a plurality of connected stator cores 2 are laminated to be applied an insulation processing thereto by a resin integral molding and coating, etc., stator windings 3 are wound around magnetic poles 17. The integrally molded connected stator core 2 is supported in the state of tensions being applied to both its ends and the nozzle of a winding machine is turned around the magnetic poles 17 to form regular windings in the stator windings 3. After the windings are completed, pressing a cylindrical jig in contact with the surfaces to be opposed to the rotor of the blower, thin-walled portions 20 of the integrally molded connected core 2 are bent respectively to form it into its desired shape.

17. 发明专利

JPH07312851A CERAMIC SLIDING CURRENT COLLECTOR 失效
公开(公告)号：JPH07312851A
公开(公告)日：1995-11-28
申请号：JP3270195
申请日：1995-02-21
申请人： MITSUBISHI ELECTRIC HOME APPL , MITSUBISHI ELECTRIC CORP
发明人： TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H01R39/04 , H01R39/14 , H01R43/06 , H02K13/00 , H02K15/02
摘要： PURPOSE:To easily retain the degree of coaxialness between a ceramic slider part and a rotary shaft, prevent insulation ceramic from being cracked and damaged, and easily fix the ceramic slider part to the rotary shaft when the ceramic slider of a ceramic sliding current collector is press-fitted and fixed for the rotary shaft. CONSTITUTION:In the title ceramic sliding current collector which is formed by fixing a ceramic commutator 1a which is a ceramic slider consisting of a commutator piece 1a which is a slider piece consisting of a conductive material and a ceramic commutator 1 which is a ceramic slider consisting of a cylindrical insulation ceramic 1b for retaining the commutator piece 1a, the insulation ceramic 1b is formed in one piece by the one-piece formation along with the commutator piece 1a and the insulation ceramic 1b and is provided with a cylindrical one-piece formation resin layer 1c for retaining the ceramic commutator l by press-fitting the commutator l for a rotary shaft 2.

18. 发明专利

JPH01129822A CONTROLLING APPARATUS FOR ELECTRIC CLEANER 失效
公开(公告)号：JPH01129822A
公开(公告)日：1989-05-23
申请号：JP28888487
申请日：1987-11-16
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： TAKAHASHI YUJI , OGASAWARA TOSHIO
IPC分类号： A47L9/28 , H02P25/04 , H02P27/02
摘要： PURPOSE: To raise the suction force of a cleaner corresponding to the clogging of a dust collection filter and to always ensure necessary suction force by controlling the output of a vacuum motor on the basis of the output of a pressure detection means detecting the pressure on the vacuum motor side. CONSTITUTION: A pressure sensor 15 detects the pressure on the side of an internal vacuum motor 2 from the dust collection filter 3 in a cleaner main body 1. The output voltage of the pressure sensor 15 is applied to a differential amplifying circuit constituted of resistors 16a-16d for determining a time constant and an operational amplifier 17 and amplified to detect the suction pressure of a cleaner. This detection signal is applied to the reversal inputs of voltage comparators 20a-20c. At the same time, a preset value is applied to the non-reversal inputs of voltage comparators 20a-20c and this value is set to 20a

19. 发明专利

JP2002021793A ELECTRIC BLOWER 失效
公开(公告)号：JP2002021793A
公开(公告)日：2002-01-23
申请号：JP2000200797
申请日：2000-07-03
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YASUJIMA TAKEHIKO , OTAKA SHUICHI , TAKAHASHI YUJI
IPC分类号： F04D29/00 , F04D25/06 , F04D29/58 , F04D29/60 , H02K9/06
摘要： PROBLEM TO BE SOLVED: To provide an electric blower comprising a motor capable of improving heat radiation effect of a rotor and yoke at driving, and of insuring hold in a rotating and axis directions by a small amount of mold material without breaking magnets at a mold forming for fixing the magnets at a yoke. SOLUTION: The electric blower comprises the motor comprising the yoke 2 which has a circular opening at the center, formed in a substantially rectangular shape and press-fitted and supported in a frame 18; a stator 10 consisting of a plurality of arc shaped magnets 1a, 1b disposed along the inner surface of the circular opening of the yoke 2 with predetermined clearances between their ends; and the rotor 11 disposed in a space formed at the center by the magnets 1a, 1b, wherein airways 3a of air flow from a blowing fan are formed through clearances formed between the ends of the magnets 1a, 1b.

20. 发明专利

JP2000060037A MOTOR FOR BLOWER 失效
公开(公告)号：JP2000060037A
公开(公告)日：2000-02-25
申请号：JP22289298
申请日：1998-08-06
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI ELECTRIC HOME APPL
发明人： YASUJIMA TAKEHIKO , TAKAHASHI YUJI , OTAKA SHUICHI
IPC分类号： H02K1/14 , H02K1/18 , H02K1/20
摘要： PROBLEM TO BE SOLVED: To improve the durability of a motor for blower by preventing the temperature of the motor from rising, by providing an armature coil formed by alternately laminating core plates having different outside salient-pole diameters upon another. SOLUTION: The armature 1 of a motor for blower has a shaft 2 and an armature core 4 formed by press-fitting a laminated core plate in the shaft 2. The laminated core plate is formed by alternately laminating core plates 4a and 4b, the salient poles 14a and 14b of which have different outside diameters ϕA and ϕB (ϕA>ϕB) upon another. Since C-faces (C=(ϕA-ϕB)/20) are formed at (n-1) (n: the number of laminated core plates) spots on the external surface of the armature core 4, the outer peripheral surface area of the armature 1 becomes (ϕA-ϕB)×(n-1)+nt (N: the thickness of each core plate) which is larger than that of the conventional armature by (n-1)×(ϕA-ϕB)/2, because the outer peripheral surface area of the conventional armature, S, is given, S=nt. Therefore, the durability of the motor is improve, because the contact area of the motor with air becomes larger and the temperature rise of the motor can be prevented.

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