GB1272626A - Electrical tool - Google Patents

Electrical tool

Info

Publication number
GB1272626A
GB1272626A GB21139/69A GB2113969A GB1272626A GB 1272626 A GB1272626 A GB 1272626A GB 21139/69 A GB21139/69 A GB 21139/69A GB 2113969 A GB2113969 A GB 2113969A GB 1272626 A GB1272626 A GB 1272626A
Authority
GB
United Kingdom
Prior art keywords
motor
speed
april
alternatively
series
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21139/69A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1272626A publication Critical patent/GB1272626A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/10—Commutator motors, e.g. repulsion motors
    • H02P25/14—Universal motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/10—Commutator motors, e.g. repulsion motors
    • H02P25/14—Universal motors
    • H02P25/145—Universal motors whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value, speed feedback
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • H02P25/182—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays whereby the speed is regulated by using centrifucal devices, e.g. switch, resistor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/066—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current using a periodic interrupter, e.g. Tirrill regulator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/288—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance
    • H02P7/2885—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/2913—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Abstract

1,272,626. Control of D.C. motors. ROBERT BOSCH G.m.b.H. 25 April, 1969 [27 April, 1968], No. 21139/69. Heading H2J. [Also in Division G3] An electric tool is powered by a motor 18 energized from an A.C. supply via a rectifier connectable directly to the supply and contained within the tool casing, and its speed is kept substantially constant by a regulating arrangement on the D.C. supplied to the motor. As shown, the regulating arrangement comprises a voltage dependent resistor 17 in series with the motor, but it may alternatively be in series with the motor field only (Fig. 4, not shown). In Fig. 1 (not shown), the regulator is a centrifugal governor with contacts either in the motor circuit or controlling a thyristor which is in the motor circuit, with a capacitor and voltage dependent resistor to suppress sparking, and in Fig. 2 (not shown) a tachogenerator controls the speed via an unspecified "electronic device." The motor may be disconnected in the event of overspeed by a centrifugal switch or by additional contacts on the speed regulating centrifugal governor, by a device sensitive to the cooling air flow, or by a relay sensitive to the voltage distribution between the field and armature windings. Alternatively, a vane-type governor, which may be the cooling fan, is arranged so that its surface area increases at a predetermined speed and the resulting braking warns the operator to switch off.
GB21139/69A 1968-04-27 1969-04-25 Electrical tool Expired GB1272626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1763278A DE1763278B2 (en) 1968-04-27 1968-04-27 Power tool

Publications (1)

Publication Number Publication Date
GB1272626A true GB1272626A (en) 1972-05-03

Family

ID=5697454

Family Applications (2)

Application Number Title Priority Date Filing Date
GB21139/69A Expired GB1272626A (en) 1968-04-27 1969-04-25 Electrical tool
GB265/72A Expired GB1273720A (en) 1968-04-27 1969-04-25 Electrical tool

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB265/72A Expired GB1273720A (en) 1968-04-27 1969-04-25 Electrical tool

Country Status (3)

Country Link
DE (1) DE1763278B2 (en)
FR (1) FR2007142A1 (en)
GB (2) GB1272626A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002818A1 (en) * 1980-03-24 1981-10-01 Black & Decker Inc Microcomputer controlled power tool
EP1602170A2 (en) * 2003-02-07 2005-12-07 Black & Deker Inc. Excitation circuit and control method for flux switching motor
EP1421669A4 (en) * 2001-08-06 2016-08-24 Black & Decker Inc Excitation circuit and control method for flux switching motor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442791A1 (en) * 1984-11-23 1986-06-12 Wolfgang Dipl.-Ing. 8399 Ruhstorf Rösch ELECTRONIC LIFT DRIVE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002818A1 (en) * 1980-03-24 1981-10-01 Black & Decker Inc Microcomputer controlled power tool
US4317176A (en) * 1980-03-24 1982-02-23 Black & Decker Inc. Microcomputer controlled power tool
EP1421669A4 (en) * 2001-08-06 2016-08-24 Black & Decker Inc Excitation circuit and control method for flux switching motor
EP1602170A2 (en) * 2003-02-07 2005-12-07 Black & Deker Inc. Excitation circuit and control method for flux switching motor
EP1602170A4 (en) * 2003-02-07 2007-12-12 Black & Deker Inc Excitation circuit and control method for flux switching motor
EP2264885A1 (en) * 2003-02-07 2010-12-22 Black & Decker Inc. Excitation circuit and control method for flux switching motor

Also Published As

Publication number Publication date
DE1763278B2 (en) 1975-06-05
DE1763278A1 (en) 1972-02-17
FR2007142A1 (en) 1970-01-02
GB1273720A (en) 1972-05-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee