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1. 发明专利

JP2001157492A ELECTRIC CLEANER 失效
公开(公告)号：JP2001157492A
公开(公告)日：2001-06-08
申请号：JP32942599
申请日：1999-11-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： AKIYAMA TOSHIRO
IPC分类号： A47L9/28 , H02P25/10 , H02P7/638
摘要： PROBLEM TO BE SOLVED: To provide an electric cleaner in which power consumption is reduced by sucking dust at a constant suction air volume when a cleaner brush is pressed against the floor surface and reducing suction air volume when the cleaner brush is lifted from the floor surface thereby eliminating useless suction. SOLUTION: The electric cleaner comprises a triac 3 for supplying a current to a commutator motor 1, a current transformer 4 for detecting a current flowing through the commutator motor 1, a circuit 6 for rectifying the output voltage of the current transformer 4, a circuit 7 for smoothing the output from the rectifier circuit 6 to produce an output proportional to the mean value, a circuit 11 for peak holding the output from the rectifier circuit 6 to produce an output proportional to the peak value, a circuit 12 for selecting the output from the mean value circuit 7 or the output from the peak hold circuit 11 competitively to output the higher voltage value, means 8 for controlling the firing angle of the triac 3 such that the output of the competitive output circuit 12 will be constant, and a circuit 9 for receiving the output from the firing angle control means 8 and delivering a drive signal to the gate of the triac 3.

2. 发明专利

JPH11197075A VACUUM CLEANER 失效
公开(公告)号：JPH11197075A
公开(公告)日：1999-07-27
申请号：JP564598
申请日：1998-01-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJIWARA TOSHIAKI
IPC分类号： A47L9/28 , H02P21/22 , H02P23/00 , H02P25/04 , H02P25/10 , H02P7/36 , H02P7/638
摘要： PROBLEM TO BE SOLVED: To provide a cleaner with a high suction force within a range of electric current capacity of a braker in an ordinary home by raising the suction force by a simple constitution even when the suction force tends to decrease. SOLUTION: A relay coil 7a is connected to an output of an electric current detecting part 6 and when it is connected in series to a suction force setting part 1 and the suction force is high, a relay part connected to NC contact points in parallel is provided at a phase cut setting part 5 for reducing amt. of passing electric current to a fan motor 3 and when the suction force is lowered, output of the electric current detecting part 6 is decreased and electric power supply to the relay coil 7a is decreased and a relay contact point 7b makes a short circuit with a phase cut setting part 5 and increases the amt. of electric current passing the through fan motor 3 to increase the suction force.

3. 发明专利

JPH10513036A 失效
公开(公告)号：JPH10513036A
公开(公告)日：1998-12-08
申请号：JP52280696
申请日：1996-01-19
IPC分类号： H02P25/10 , H02P25/14 , H02P7/638

4. 发明专利

JPH09503377A 失效
公开(公告)号：JPH09503377A
公开(公告)日：1997-03-31
申请号：JP51054895
申请日：1994-09-28
IPC分类号： H02P29/00 , B25B23/14 , B25B23/147 , G01L5/26 , G05D17/02 , H02H7/085 , H02P25/10 , H02P25/14 , H02P7/638 , H02P7/00

5. 发明专利

JPH0785668B2 失效
公开(公告)号：JPH0785668B2
公开(公告)日：1995-09-13
申请号：JP2566686
申请日：1986-02-07
IPC分类号： H02P1/24 , H02P25/10 , H02P25/14 , H02P7/638

6. 发明专利

JPH07194185A CONTROL CIRCUIT FOR SINGLE-PHASE SERIES-WOUND COMMUTATOR MOTOR 失效
公开(公告)号：JPH07194185A
公开(公告)日：1995-07-28
申请号：JP33708793
申请日：1993-12-28
申请人： MAKITA CORP
发明人： INUZUKA YOSHIHISA , MATSUMOTO TOSHIO , SUZUKI SHIGEMICHI , KANO TAKANORI
IPC分类号： H02P3/18 , H02P25/10 , H02P7/638
摘要： PURPOSE:To enable a single-phase series-wound commutator motor to use a brake winding which can secure a sufficiently high braking performance and has a large number of turns by suppressing a high voltage generated across the main winding and brake winding of the motor. CONSTITUTION:In the control circuit of a single-phase series-wound commutator motor in which a main winding MW and brake winding BW are arranged in the same slot of a stator and the ends of the windings MW and BW are connected to each other, and then, a brake is operated by means of a unipolar double throw switch SSW, a varister B or capacitor C is connected between the main winding MW and brake winding BM or between both ends of the brake winding BW.

7. 发明专利

JPH0716317B2 失效
公开(公告)号：JPH0716317B2
公开(公告)日：1995-02-22
申请号：JP20049787
申请日：1987-08-11
IPC分类号： H02P25/04 , A47L9/28 , H01C10/00 , H02P25/10 , H02P27/02 , H02P7/638 , H02P7/622

8. 发明专利

JPH0697872B2 失效
公开(公告)号：JPH0697872B2
公开(公告)日：1994-11-30
申请号：JP2519987
申请日：1987-02-05
IPC分类号： A47L9/28 , H02P25/04 , H02P25/10 , H02P25/16 , H02P27/02 , H02P7/622 , H02P7/638

9. 实用新型

JPH0540719Y2 失效
公开(公告)号：JPH0540719Y2
公开(公告)日：1993-10-15
申请号：JP5745985
申请日：1985-04-19
IPC分类号： H02P25/10 , H02P7/638

10. 实用新型

JPS63160067U 失效
公开(公告)号：JPS63160067U
公开(公告)日：1988-10-19
申请号：JP5213187
申请日：1987-04-08
IPC分类号： A47L9/28 , G05F1/66 , H02K11/00 , H02P25/10 , H03K17/72 , H02P7/638

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