US3825703A - Switch for multispeed electric motor - Google Patents

Switch for multispeed electric motor Download PDF

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Publication number
US3825703A
US3825703A US00332266A US33226673A US3825703A US 3825703 A US3825703 A US 3825703A US 00332266 A US00332266 A US 00332266A US 33226673 A US33226673 A US 33226673A US 3825703 A US3825703 A US 3825703A
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US
United States
Prior art keywords
plate
clamps
base
switching device
edge
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
US00332266A
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English (en)
Inventor
G Berthier
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Individual
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Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3825703A publication Critical patent/US3825703A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb

Definitions

  • the switch comprises a contact holder element provided with a recess engaged by one of the sides of a removable polygonal plate whose sidesare provided with printed connections designed according to different diagrams.
  • the present invention relates to electric motors used to drive pumps, central heating circulators, fans, air conditioners, and other apparatus in which it is advantageous to vary the motor speed in response to the requirements or characteristics, of the system associated with the apparatus.
  • the object of the invention is to eliminate the above disadvantages, and relates to a switch structure capable of changing simply and rapidly the operating speed of a multispeed motor.
  • the switch of the invention comprises the combination of a fixed element provided with a recess containing a number of contacts connected to the windings and motor speed control equipment, and at least one removable insulation plate carrying, on at least one 13 constituting housings for electric contacts 14.
  • each contact 14 is in the fonn of a clamp opening in a direction parallel to recess 12.
  • the back wall of the clamp is integral with a vertical extension 15 engaging a slot provided in block 10.
  • a conductor 16 is associated with each contact 14.
  • Insulation plate 2 consists of a square element 20 whose corners are cut at 21 so that the length of each free edge is equal to that of recess 12. Each of the said free edges is provided with a transverse slot 22 located laterally to the bisector of the side concerned. Conducside, printed electric connections arranged according to a determined diagram in such a way that, once engaged in the recess of the above cited contact holder element, the plate provides automatically for connec tions corresponding to the diagram arranged on the side introduced into the said recess.
  • the switch comprises a single polygonal plate carrying on each side a different printed diagram. It is understood that the number of sides of the polygonal insulation plate depends on the number of different speed adjustments of the particular motor. Each side is advantageously provided with a mark printed on the plate to facilitate selection by the user of the side correspond ing to the desired speed, and to show the operating speed at which the motor is regulated, for example, by simple reading of the mark appearing through an opening provided in the protective cover mounted on the switch unit. r a 1
  • the attached drawing illustrating one example will clarify the invention.
  • FIG. 1 is a perspective view of the contact holder or connector element of the switch of the invention prior to mounting on the insulation base.
  • FIG. 2 is a perspective view of the base and the insu-' lation plate. I
  • FIG. 3 is an axial section through the switch, with contact holder element fastened, insulation plate inserted, and protective cover positioned in place.
  • reference numeral 1 designates the contact holder element
  • numeral 2 the insulation plate
  • numeral 3 the base carrying the said element 1.
  • This base can be mounted on one of the walls of an electric motor or associated apparatus housing.
  • Element 1 consists of a block 10 of insulation material (molded synthetic material or the like) comprising a vertical face provided with a laterally extending horizontal extension 11.
  • the free face of extension 11 is provided with an opening or recess 12 of elongated rectangular shape.
  • the internal portion determined in extension 11 by recess 12 is provided with vertical slots mt connections or junctions 23 whose ends are spaced by a distance equal to the spacing between the contacts 14 of element 1 are printed on. both sides of the said slot 22 by a method customary to the printed circuit industry.
  • the center of plate 2 is perforated at 24. Marks 21 are arranged around opening 24 and consist in this example of numerals l 2, 3,. and 4 indicating the four sides of square plate 2. It will be appreciated that the printed connections 23 on the four sides are established according to different diagrams.
  • Contact holder element 1 is designed to be fixed, for
  • a removable clamp 1'7 (FIGS. 2 and 3) arranged in an opening 30 (FIG. 2) provided for this pur pose in the horizontal portion of the raised bottom 31 of base 3 directly in front of a vertical back wall'32.
  • plate 2 can be introduced into the recess 12 in element 1, slot 22 fitting around projection 35 which, because of its lateral position, constitutes a guide and prevents introduction of the said plate into the element in an incorrect position.
  • Printed connections 23 provide for a determined coupling between contacts 14 so that the motor'operates at the desired speed.
  • Plate 2 is held in place by a screw 40 (FIG. 3) extending'through passage 34 and engaging a thread 50 in the wall 5 of the motor or apparatus housing.
  • the head of screw 40 rests on the upper wall of protective cover 4 provided advantageously with an abutment sleeve 41 penetrating opening24 inplate 2.
  • Cover 4 is provided with an opening 42 permitting observation from the outside of mark 25 corresponding to the side of plate 2 engaging recess 12.
  • the shape of the said plate 2 may be triangular, pentagonal, hexagonal, etc. as determined by the different rates of speed of the electric motor.
  • the arrangement of contact holder element 1 and the number of contacts provided therein may vary.
  • Other ways of fastening plate on base 3 may be provided, and the structure of the said plate may vary in any appropriate manner.
  • plate 2 may be provided with only one connection diagram, and the motor speed is changed by introduction of a different plate carrying a different diagram into contact holder element 1.
  • a number of resilient contact-forming clamps -each having two branches situated in a mean common plane, carriedby said fixed holder and disposed thereon along a substantially rectilinear row with the mean common plane of the branches of each clamp being substantially perpendicular to said row and with some at least of said clamps being connected with the winding circuits and with the auxiliary elements of said motor;
  • a removable insulating plate having at least one substantially rectilinear edge which may be introduced into said clamps;
  • said contact holder being formed of an insulating block having a transverse extension formed with an elongated recess in which said contacts-forming clamps are disposed.
  • each of said clamps having an extension substantially perpendicular to its branches and said block being formed with slots substantially perpendicular to said recess to receive said extensions.
  • said insulating plate being of polygonal shape to comprise more than one rectilinear edge, with some at least of said rectilinear edges carrying contacts to cooperate with said clamps;
  • said insulating plate being cut away to determine lateral shoulders void of any contact and a projecting central contact-carrying portion, with said central-carrying portion having a length substantially equal to the length of said recess, said shoulders limiting the introduction of said central portion into said recess.
  • said means to guide-said plate laterally including a transverse slot formed in said rectilinear edge and spaced from the bisector thereof, and a projection carried by said holder to cooperate with said slot.
  • said plate having a central opening
  • said holder being carried by a base with said row of clamps being substantially parallel to said base;
  • said plate having more than one contact-carrying edge
  • said plate having a central opening
  • said contact holder being carried by a base with said row of clamps being substantially parallel to said base;
  • said plate being fixed on said base by a screw passed through said opening;
  • said device further comprising a cover removably fixed on said base by said screw;

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanisms For Operating Contacts (AREA)
US00332266A 1972-02-23 1973-02-14 Switch for multispeed electric motor Expired - Lifetime US3825703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR727206739A FR2111985B1 (enrdf_load_stackoverflow) 1972-02-23 1972-02-23

Publications (1)

Publication Number Publication Date
US3825703A true US3825703A (en) 1974-07-23

Family

ID=9094263

Family Applications (1)

Application Number Title Priority Date Filing Date
US00332266A Expired - Lifetime US3825703A (en) 1972-02-23 1973-02-14 Switch for multispeed electric motor

Country Status (5)

Country Link
US (1) US3825703A (enrdf_load_stackoverflow)
JP (1) JPS4898321A (enrdf_load_stackoverflow)
DE (1) DE2308573A1 (enrdf_load_stackoverflow)
FR (1) FR2111985B1 (enrdf_load_stackoverflow)
IT (1) IT979357B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5455886A (en) * 1994-05-26 1995-10-03 Ryobi Motor Products Corporation Electrical implement with variable speed control
EP1493927A1 (fr) * 2003-06-30 2005-01-05 Pompes Salmson Interface de commande de systeme d'asservissement d'appareils électriques
WO2018108491A1 (de) * 2016-12-12 2018-06-21 BSH Hausgeräte GmbH Elektrogerät mit verteilten elektrischen einrichtungen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498381A1 (fr) * 1981-01-16 1982-07-23 Thomson Brandt Moteur electrique, accessoire de connexion pour un tel moteur, et appareil comportant ce moteur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112378A (en) * 1959-05-28 1963-11-26 Hoover Ltd Device for changing the program of washing machines
US3660831A (en) * 1969-04-02 1972-05-02 Maezelectronics S N C Di Lucia Electronic antitheft device using an electronic safety lock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112378A (en) * 1959-05-28 1963-11-26 Hoover Ltd Device for changing the program of washing machines
US3660831A (en) * 1969-04-02 1972-05-02 Maezelectronics S N C Di Lucia Electronic antitheft device using an electronic safety lock

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, J. A. Crenshaw, Printed Circuit Lock Mechanism; Vol. 13, No. 11, April, 1971. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5455886A (en) * 1994-05-26 1995-10-03 Ryobi Motor Products Corporation Electrical implement with variable speed control
EP1493927A1 (fr) * 2003-06-30 2005-01-05 Pompes Salmson Interface de commande de systeme d'asservissement d'appareils électriques
WO2018108491A1 (de) * 2016-12-12 2018-06-21 BSH Hausgeräte GmbH Elektrogerät mit verteilten elektrischen einrichtungen
US11555649B2 (en) 2016-12-12 2023-01-17 Bsh Hausgeraete Gmbh Electrical appliance having electric devices in a distributed arrangement

Also Published As

Publication number Publication date
DE2308573A1 (de) 1973-08-30
IT979357B (it) 1974-09-30
JPS4898321A (enrdf_load_stackoverflow) 1973-12-13
FR2111985B1 (enrdf_load_stackoverflow) 1974-07-05
FR2111985A1 (enrdf_load_stackoverflow) 1972-06-16

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