US2253483A - Electromagnetic vibratory governor for dynamos - Google Patents

Electromagnetic vibratory governor for dynamos Download PDF

Info

Publication number
US2253483A
US2253483A US220349A US22034938A US2253483A US 2253483 A US2253483 A US 2253483A US 220349 A US220349 A US 220349A US 22034938 A US22034938 A US 22034938A US 2253483 A US2253483 A US 2253483A
Authority
US
United States
Prior art keywords
contact
armature
contact spring
governor
dynamos
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 - Lifetime
Application number
US220349A
Inventor
Menzel Friedrich
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
Application granted granted Critical
Publication of US2253483A publication Critical patent/US2253483A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/16—Regulation of the charging current or voltage by variation of field
    • H02J7/22—Regulation of the charging current or voltage by variation of field due to variation of make-to-break ratio of intermittently-operating contacts, e.g. using Tirrill regulator
    • H02J7/225—Regulation of the charging current or voltage by variation of field due to variation of make-to-break ratio of intermittently-operating contacts, e.g. using Tirrill regulator characterised by the mechanical construction
    • 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
    • H02P31/00—Arrangements for regulating or controlling electric motors not provided for in groups H02P1/00 - H02P5/00, H02P7/00 or H02P21/00 - H02P29/00
    • 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
    • H02P7/02—Arrangements for regulating or controlling the speed or torque of electric DC motors the DC motors being of the linear type
    • H02P7/025—Arrangements for regulating or controlling the speed or torque of electric DC motors the DC motors being of the linear type the DC motors being of the moving coil type, e.g. voice coil 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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output

Definitions

  • This invention relates to electromagnetic vibratory regulators for dynamos driven at variable speed especially on vehicles, the regulators being provided with a contact spring actuated bycontact spring, to affect the operation of the reg-' ulator in an unfavorable manner.
  • the contact spring which bears with preliminary tension against a stop finger which is moved with it, is arranged in such a manner, that, on swinging, it impinges rigidly against the contact for the lower range of speed and resiliently against the contact for the higher range of speed.
  • the Vibrating governor has a magnet frame I with a magnet 2, which carries a current coil 3 and a voltage coil 4. n the upwardly pointing leg of the magnet frame I is suspended, by means of a leaf spring IS, a right angle-shaped armature 5, to the downwardly directed leg of which are secured, so as to be insulated, a contact spring 6 and a substantially rigid stop finger I of equal length.
  • the contact spring 6 bears with preliminary tension against the stop finger I and carries a double contact 8, which on one side passes through a recess provided in the stop finger 1.
  • the contact 8 cooperates with two opposed fixed contacts 8 and I0, 9 being connected to the frame of the magnet and I0 insulated therefrom. As may be seen from the drawing, the stop finger I bears on that side oi'the contact spring Ii which faces the contact 9.
  • circuit diagram II denotes a continuous current dynamo, I2 thev excitation winding thereof, lldenotes a series resistance, It a battery and I5 denotes an automatic charging switch between the dynamo I I and the battery I4.
  • the contact 8 present on the contact spring 5 bears on the contact I0, whereby the resistance l3 in the excitation circuit of the dynamo II is short circuited. If the armature 5 is attracted by the magnet 2 at a certain voltage of the dynamo II, the contact spring 6 is immediately lifted from the contact 8 and thus the resistance I3 is connected in series with the excitation winding I2. If, on increasing voltage, the armature 5 is attracted more strongly, then the contact spring 8 strikes with'its contact 8 against the contact .9, whereby the excitation winding I2 is short circuited. As a result of its preliminary tension,
  • the contact spring 6 damps the impact and in doing this it may be raised from the contact finger I.
  • the stop finger 1 takes the contact spring 6 with it and opens the contact 8, 9. If the armature 5 thereby goes into its inoperative position, then the stop finger 1 causes the contact spring 6 to strike rigidly against the contact I0.
  • the vibrating governor controls the voltage of the dynamo in known manner by periodic opening and closing of the contacts 8, III or 8, 9.
  • the remaining construction or the governor can be chosen in any desired manner.
  • An electromagneticvibratory regulator for dynamos driven at variable speed comprising an armature, a contact spring actuated by said armature, two fixed contacts between which said contact spring is adapted to swing, one of said contacts being for the lower range of speed of the dynamo and the 0ther-of said contacts being for the higher range of the speed of said dynamo, and a substantially rigid stop finger rigidly mounted upon and actuated by said armature together with said contact spring, said contact spring being substantially coextensive with and bearing against said stop finger with preliminary tension whereby, on swinging, the said contact spring impinges rigidly on the contact for the lower range of speed and resiliently on the contact for the higher range of speed.
  • An electromagnetic vibratory regulator for dynamos driven at variable speed comprising a magnet frame, an armature, a spring pivotally securing said armature to said frame. a contact spring and a substantially rigid stop finger, both mounted on said armature, said contact spring bearing against said stop finger with preliminary tension, and two fixed contacts between which said contact spring is adapted to swing, one of said contacts being for the lower range of speed of the dynamo and the other for the higher range 01' speed of said dynamo, said contact spring and said stop finger being substantially coextensive and arranged in such a manner that, on swinging, the said contact spring impinges rigidly on the contact for the lower range of speed and resiliently on th contact for the higher range or speed.

Description

Aug. 19, 1941. MENZEL 2,253,483,
ELECTROMAGNETIC VIBRATORY GOVERNOR FOR DYNAMOS Filed July 20, 1938 Patented Aug. 19, 1941- ELECTROMAGNETIC VIBRATORY GOVER- NOR FOR DYNAMOS Friedrich Menzel, Stuttgart, Germany, assignor to Robert Bosch Gesellschaft mit beschtiinkter Haftung, Stuttgart, Germany Application July 20, 1938, Serial No. 220,349 In Germany July 29, 1937 2 Claims.
This invention relates to electromagnetic vibratory regulators for dynamos driven at variable speed especially on vehicles, the regulators being provided with a contact spring actuated bycontact spring, to affect the operation of the reg-' ulator in an unfavorable manner.
According to this invention, the contact spring, which bears with preliminary tension against a stop finger which is moved with it, is arranged in such a manner, that, on swinging, it impinges rigidly against the contact for the lower range of speed and resiliently against the contact for the higher range of speed. By this arrangement it is impossible for the contact spring to be thrown back and open the contact prematurely when a shock coincides with the attraction movement of the armature and pushes against the contact for the higher range of speed, whereby the regulated voltage would rise and injure the lamps or other current-consuming devices supplied by the dynamo.
The invention is more particularly described with reference to the accompanying drawing, which shows an example of construction in iongitudinal section together with a circuit diagram.
The Vibrating governor has a magnet frame I with a magnet 2, which carries a current coil 3 and a voltage coil 4. n the upwardly pointing leg of the magnet frame I is suspended, by means of a leaf spring IS, a right angle-shaped armature 5, to the downwardly directed leg of which are secured, so as to be insulated, a contact spring 6 and a substantially rigid stop finger I of equal length. The contact spring 6 bears with preliminary tension against the stop finger I and carries a double contact 8, which on one side passes through a recess provided in the stop finger 1. The contact 8 cooperates with two opposed fixed contacts 8 and I0, 9 being connected to the frame of the magnet and I0 insulated therefrom. As may be seen from the drawing, the stop finger I bears on that side oi'the contact spring Ii which faces the contact 9.
In the circuit diagram II denotes a continuous current dynamo, I2 thev excitation winding thereof, lldenotes a series resistance, It a battery and I5 denotes an automatic charging switch between the dynamo I I and the battery I4.
In the inoperative position of the governor, the contact 8 present on the contact spring 5 bears on the contact I0, whereby the resistance l3 in the excitation circuit of the dynamo II is short circuited. If the armature 5 is attracted by the magnet 2 at a certain voltage of the dynamo II, the contact spring 6 is immediately lifted from the contact 8 and thus the resistance I3 is connected in series with the excitation winding I2. If, on increasing voltage, the armature 5 is attracted more strongly, then the contact spring 8 strikes with'its contact 8 against the contact .9, whereby the excitation winding I2 is short circuited. As a result of its preliminary tension,
the contact spring 6 damps the impact and in doing this it may be raised from the contact finger I. When the armature 5 swings back, the stop finger 1 takes the contact spring 6 with it and opens the contact 8, 9. If the armature 5 thereby goes into its inoperative position, then the stop finger 1 causes the contact spring 6 to strike rigidly against the contact I0.
The vibrating governor controls the voltage of the dynamo in known manner by periodic opening and closing of the contacts 8, III or 8, 9.
Shocks or jolts arising in operation during travel may take effect as impacts on the armature. In the event of an impact coinciding with the attraction movement of the armature 5, the damping caused by the contact spring 6 prevents the armature, when the contact 8 impinges on the contact 9, from being thrown back by the latter, and thus the contact 8, 8 is opened, whereby the controlled voltage would rise. The arrangement devised here permits the armature 5 to move further, after the closing of the contact 8, 8, in the direction which it has taken. The additional resilient force exerted hereby by the contact spring 6 supports the return of the armature 5.
0n the other hand, ii. the impact coincides with the dropping movement of the armature, then owing to the rebounding of the armature from the contact I, the contact 8, I I is prematurely opened, so that the controlled voltage becomessomewhat smaller. The influence oi the lower contact, by the opening of which the resistance is switched into the excitation winding, ,is, however, not as considerable as that of the upper contact, by the closing of which the excitation winding is short circuited. On the other hand, owing to the fact that when the armature is attracted out of the inoperative position, the
contact bar 8, I6 is opened, a peak in the control voltage which would otherwise arise, is avoided.
The remaining construction or the governor can be chosen in any desired manner.
I declare that what I claim is:
1. An electromagneticvibratory regulator for dynamos driven at variable speed comprising an armature, a contact spring actuated by said armature, two fixed contacts between which said contact spring is adapted to swing, one of said contacts being for the lower range of speed of the dynamo and the 0ther-of said contacts being for the higher range of the speed of said dynamo, and a substantially rigid stop finger rigidly mounted upon and actuated by said armature together with said contact spring, said contact spring being substantially coextensive with and bearing against said stop finger with preliminary tension whereby, on swinging, the said contact spring impinges rigidly on the contact for the lower range of speed and resiliently on the contact for the higher range of speed.
2. An electromagnetic vibratory regulator for dynamos driven at variable speed comprising a magnet frame, an armature, a spring pivotally securing said armature to said frame. a contact spring and a substantially rigid stop finger, both mounted on said armature, said contact spring bearing against said stop finger with preliminary tension, and two fixed contacts between which said contact spring is adapted to swing, one of said contacts being for the lower range of speed of the dynamo and the other for the higher range 01' speed of said dynamo, said contact spring and said stop finger being substantially coextensive and arranged in such a manner that, on swinging, the said contact spring impinges rigidly on the contact for the lower range of speed and resiliently on th contact for the higher range or speed.
FRIEDRICH MENZEL.
US220349A 1937-07-30 1938-07-20 Electromagnetic vibratory governor for dynamos Expired - Lifetime US2253483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937B0179407 DE695016C (en) 1937-07-30 1937-07-30 Electromagnetic dither controller for generators with variable speed, especially on vehicles

Publications (1)

Publication Number Publication Date
US2253483A true US2253483A (en) 1941-08-19

Family

ID=70290229

Family Applications (1)

Application Number Title Priority Date Filing Date
US220349A Expired - Lifetime US2253483A (en) 1937-07-30 1938-07-20 Electromagnetic vibratory governor for dynamos

Country Status (2)

Country Link
US (1) US2253483A (en)
DE (1) DE695016C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509724A (en) * 1946-09-06 1950-05-30 Cibie Pierre Adjustable spring pivot for relay armatures
US2632822A (en) * 1948-02-12 1953-03-24 Post Glover Electric Company Contactor
US2760026A (en) * 1951-01-08 1956-08-21 Clare & Co C P Relay
US2794090A (en) * 1949-08-16 1957-05-28 Ertl Emerich Electromagnetic switch relays

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB824372A (en) * 1955-12-22 1959-11-25 Leon Cibie Improvements in and relating to electromagnetically-operated switching devices for circuits fed by shunt-wound dynamos

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509724A (en) * 1946-09-06 1950-05-30 Cibie Pierre Adjustable spring pivot for relay armatures
US2632822A (en) * 1948-02-12 1953-03-24 Post Glover Electric Company Contactor
US2794090A (en) * 1949-08-16 1957-05-28 Ertl Emerich Electromagnetic switch relays
US2760026A (en) * 1951-01-08 1956-08-21 Clare & Co C P Relay

Also Published As

Publication number Publication date
DE695016C (en) 1940-08-14

Similar Documents

Publication Publication Date Title
US2253483A (en) Electromagnetic vibratory governor for dynamos
US2352550A (en) Power plant
US2631265A (en) Motor speed controller
US2617950A (en) Electromagnetic pulsing device
US2794090A (en) Electromagnetic switch relays
US1681473A (en) Electromagnetic relay
US1429009A (en) Electromagnetic contact device
US1014257A (en) Vibration-absorber for alternating-current-magnet armatures.
US2883609A (en) Self-closing circuit-breakers-regulators for motor vehicle generators
US2003021A (en) Electromagnetic switch
US2513206A (en) Electrical fence
US189998A (en) Improvement in electric clocks
US1312273A (en) William schwagermann
US1877353A (en) Electromagnetic switch
US1441044A (en) Circuit controller
US2282865A (en) Electric switch
US1133000A (en) Regulating device.
US1399741A (en) briggs
US533108A (en) Electric motor
US2306169A (en) Electromagnetic control
US2631207A (en) Balanced relay armature operated switch
US2682586A (en) Electromagnetic relay
US1523762A (en) Apparatus for regulating the amplitude in electromagnetic clocks
US1727968A (en) Electromagnetic relay
US768288A (en) Interrupter.