EP3853950A1 - A motor suitable for quick connection - Google Patents

A motor suitable for quick connection

Info

Publication number
EP3853950A1
EP3853950A1 EP19748526.1A EP19748526A EP3853950A1 EP 3853950 A1 EP3853950 A1 EP 3853950A1 EP 19748526 A EP19748526 A EP 19748526A EP 3853950 A1 EP3853950 A1 EP 3853950A1
Authority
EP
European Patent Office
Prior art keywords
terminal
electric motor
group
connection
stud bolt
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.)
Withdrawn
Application number
EP19748526.1A
Other languages
German (de)
French (fr)
Inventor
Evren SOYDAN
Cem DOGAN
Burcu DURAK
Metin OZBAGRIACIK
Aptullah ISLER
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP3853950A1 publication Critical patent/EP3853950A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork

Definitions

  • the present invention relates to an electric motor suitable for quick electrical connection.
  • Electric motors comprise the stationary stator, the rotating rotor and the terminal group for energizing the stator windings from a source.
  • Said terminal group comprises the terminal plate with stud bolts, the terminal block, the whip group and the nut.
  • the whip cables are connected to the motor winding ends.
  • the shoe is connected onto the stud bolt.
  • the nut is placed onto the cable shoe.
  • the principal function of the nut is to fix the cable shoe by taking the stud bolt as the reference axis.
  • the nut as the fixing element necessitates an additional process for completing the electrical connection of the motor. This in turn causes the electrical connection of the motor to be completed slowly.
  • the use of nut increases material costs and the length of the stud bolt to be increased. The length of the stud bolt being high results in increasing the height of the terminal box. Increase in the height of the motor terminal box causes the height of the motor to increase.
  • the aim of the present invention is the realization of an electric motor with a terminal connection form which enables the motor electrical connection to be performed quickly.
  • the electric motor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a special claw structure at the cable shoe.
  • the claw structure on the cable shoe and a terminal plate with which said structure forms a holding surface are provided.
  • terminal connections are realized.
  • the size of terminal group elements such as stud bolt, etc. can be decreased, which in turn enables the dimensions of the motor terminal box to be reduced.
  • a compact motor structure is obtained.
  • the connection between the cable shoe and the terminal plate is performed by using a terminal plate with T-shaped hollow structure.
  • Figure 1 - is the perspective view of the electric motor and the terminal box with the cover thereof being open.
  • Figure 2 - is the top view of the electric motor and the terminal box with the cover thereof being open.
  • Figure 3 - is the perspective view of the terminal group and the connection thereof.
  • Figure 4 - is the sideways view of the terminal group and the connection thereof.
  • Figure 5 - is the view of the assembly of the terminal group.
  • the electric motor (1) comprises
  • the terminal group (8) comprises a terminal plate (11); a stud bolt (12) which is fixed onto said terminal plate (11); a plurality of cable shoes (10) via which the motor winding ends are directly connected to the terminal group (8); a metal bridge (13) for short-circuiting the cable shoes (10); and a nut (9) for fixing the cable shoes (10) onto the stud bolt (12).
  • connection of the terminal group (8) of the electric motor (1) starts by fitting the cable shoe (10) over the stud bolt (12).
  • a nut (9) is used as an additional connection element for fixing the cable shoe (10) to the stud bolt (12), and with an additional process which is tightening the nut (9), the electrical and mechanical connection is completed.
  • an additional element such as nut (9), etc. is not used.
  • the cable shoe (15) of the present invention is fitted over the stud bolt (12) and then fitted into the terminal plate (16) of the present invention without requiring any additional connection element, thus forming a holding surface and completing the electrical and mechanical connection.
  • the process which does not contain any additional connection element such as nut (9), etc. provides that the assembly can be more easily and quickly completed in the electric motors (1) having a plurality of cable shoes (15).
  • a stud bolt (12) with a lower height with respect to the prior art can be used as an additional connection element such as nut (9), etc.
  • the height of the terminal box (7) can be reduced with respect to the prior art.
  • an electric motor (1) with a more compact structure can be designed.
  • an additional connection element such as nut, etc. is not used especially in models with a plurality of cable shoes (15) while making the connection of the terminal group (8), and the cable shoe (15) of the present invention is quickly and easily mounted to the terminal plate (16) of the present invention.
  • the need for an additional connection element and assembly time for connection elements is eliminated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention relates to an electric motor (1) comprising a body (2) which constitutes the outer component, a rotor shaft group (3) which constitutes the rotary component, a cover (4) which provides the isolation between the inner and outer environments, a foot (5) which enables the body (2) to be seated on a floor, and a fan cover (6) which covers the fan, a terminal box (7) and a terminal group (8), wherein the electrical and mechanical connection of the terminal group (8) can be quickly and easily performed.

Description

    A MOTOR SUITABLE FOR QUICK CONNECTION
  • The present invention relates to an electric motor suitable for quick electrical connection.
  • Electric motors comprise the stationary stator, the rotating rotor and the terminal group for energizing the stator windings from a source. Said terminal group comprises the terminal plate with stud bolts, the terminal block, the whip group and the nut. In order to make the terminal group connection, first the whip cables are connected to the motor winding ends. After connecting the whip group integrated with the stator winding ends to the cable shoes, the shoe is connected onto the stud bolt. Finally, the nut is placed onto the cable shoe. In this structure, the principal function of the nut is to fix the cable shoe by taking the stud bolt as the reference axis.
  • Using the nut as the fixing element necessitates an additional process for completing the electrical connection of the motor. This in turn causes the electrical connection of the motor to be completed slowly. Moreover, the use of nut increases material costs and the length of the stud bolt to be increased. The length of the stud bolt being high results in increasing the height of the terminal box. Increase in the height of the motor terminal box causes the height of the motor to increase.
  • In the state of the art United States of America Patent Documents No. US5665939 and US2014111044, connection methods for facilitating the motor electrical connection are disclosed.
  • The aim of the present invention is the realization of an electric motor with a terminal connection form which enables the motor electrical connection to be performed quickly.
  • The electric motor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a special claw structure at the cable shoe. The claw structure on the cable shoe and a terminal plate with which said structure forms a holding surface are provided. Thus, without requiring any additional connection element such as nut, etc., terminal connections are realized. By eliminating the need for any additional connection element, the size of terminal group elements such as stud bolt, etc. can be decreased, which in turn enables the dimensions of the motor terminal box to be reduced. Thus, a compact motor structure is obtained. In an embodiment of the present invention, the connection between the cable shoe and the terminal plate is performed by using a terminal plate with T-shaped hollow structure.
  • The electric motor realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
  • Figure 1 - is the perspective view of the electric motor and the terminal box with the cover thereof being open.
  • Figure 2 - is the top view of the electric motor and the terminal box with the cover thereof being open.
  • Figure 3 - is the perspective view of the terminal group and the connection thereof.
  • Figure 4 - is the sideways view of the terminal group and the connection thereof.
  • Figure 5 - is the view of the assembly of the terminal group.
  • The elements illustrated in the figures are numbered as follows:
    1. Electric motor
    2. Body
    3. Rotor shaft group
    4. Door
    5. Foot
    6. Fan cover
    7. Terminal box
    8. Terminal block group
    9. Nut
    10. Cable shoe of the prior art
    11. Terminal plate of the prior art
    12. Stud bolt
    13. Metal bridge
    14. Whip cable
    15. Cable shoe of the present invention
    16. Terminal plate of the present invention
  • The electric motor (1) comprises
    • a body (2) which constitutes the outer component,
    • a rotor shaft group (3) which constitutes the rotary component,
    • a cover (4) which provides the isolation between the inner and outer environments, and
    • a foot (5) which enables the body (2) to be seated on a floor, a fan cover (6) which covers the fan, a terminal box (7) and a terminal group (8).
  • The terminal group (8) comprises a terminal plate (11); a stud bolt (12) which is fixed onto said terminal plate (11); a plurality of cable shoes (10) via which the motor winding ends are directly connected to the terminal group (8); a metal bridge (13) for short-circuiting the cable shoes (10); and a nut (9) for fixing the cable shoes (10) onto the stud bolt (12).
  • The connection of the terminal group (8) of the electric motor (1) starts by fitting the cable shoe (10) over the stud bolt (12). A nut (9) is used as an additional connection element for fixing the cable shoe (10) to the stud bolt (12), and with an additional process which is tightening the nut (9), the electrical and mechanical connection is completed.
  • In the electric motor (1) of the present invention, an additional element such as nut (9), etc. is not used. The cable shoe (15) of the present invention is fitted over the stud bolt (12) and then fitted into the terminal plate (16) of the present invention without requiring any additional connection element, thus forming a holding surface and completing the electrical and mechanical connection. The process which does not contain any additional connection element such as nut (9), etc. provides that the assembly can be more easily and quickly completed in the electric motors (1) having a plurality of cable shoes (15).
  • In an embodiment of the present invention, as an additional connection element such as nut (9), etc. is not required, a stud bolt (12) with a lower height with respect to the prior art can be used.
  • In another embodiment of the present invention, since no additional connection element is required, the height of the terminal box (7) can be reduced with respect to the prior art. Thus, an electric motor (1) with a more compact structure can be designed.
  • In the production of the electric motor (1) of the present invention, an additional connection element such as nut, etc. is not used especially in models with a plurality of cable shoes (15) while making the connection of the terminal group (8), and the cable shoe (15) of the present invention is quickly and easily mounted to the terminal plate (16) of the present invention. Thus, the need for an additional connection element and assembly time for connection elements is eliminated.

Claims (3)

  1. An electric motor (1) comprising a body (2) which constitutes the outer component, a rotor shaft group (3) which constitutes the rotary component, a cover (4) which provides the isolation between the inner and outer environments, a foot (5) which enables the body (2) to be seated on a floor, and a fan cover (6) which covers the fan, a terminal box (7) and a terminal group (8),
    characterized by a terminal plate (16) which enables a cable shoe (15) to be fitted over a stud bolt (12) to complete the connection thereof.
  2. An electric motor (1) as in Claim 1, characterized by the stud bolt (12) the height of which can be changed.
  3. An electric motor (1) as in any one of the above claims, characterized by the terminal box (7) the height of which can be changed.
EP19748526.1A 2018-09-18 2019-07-30 A motor suitable for quick connection Withdrawn EP3853950A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201813348 2018-09-18
PCT/EP2019/070521 WO2020057827A1 (en) 2018-09-18 2019-07-30 A motor suitable for quick connection

Publications (1)

Publication Number Publication Date
EP3853950A1 true EP3853950A1 (en) 2021-07-28

Family

ID=67513522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19748526.1A Withdrawn EP3853950A1 (en) 2018-09-18 2019-07-30 A motor suitable for quick connection

Country Status (2)

Country Link
EP (1) EP3853950A1 (en)
WO (1) WO2020057827A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS487244A (en) * 1971-06-09 1973-01-30
DE2359429B2 (en) * 1973-08-29 1976-02-05 Multi-Contact Ag, Basel (Schweiz) POLE CONNECTION
IT219068Z2 (en) * 1989-12-12 1992-11-27 Oemer Motori Elettrici S P A EXTERNAL ENCLOSURE STRUCTURE, PARTICULARLY DESIGNED FOR ELECTRIC MOTORS
JP2553430Y2 (en) * 1991-08-02 1997-11-05 日本端子株式会社 Electrical connector
US5665939A (en) 1994-11-04 1997-09-09 Power House Tool, Inc. Method and quick-disconnect apparatus for a three-phase motor
DE102005016905B3 (en) * 2005-04-12 2006-11-30 Sew-Eurodrive Gmbh & Co. Kg Electric motor with fan and associated fan cover
JP5378776B2 (en) * 2008-12-03 2013-12-25 カルソニックカンセイ株式会社 Grounding terminal structure of wire harness
US8946957B2 (en) 2012-10-24 2015-02-03 Caterpillar Inc. Cable arrangement system
KR101333839B1 (en) * 2013-01-18 2013-11-27 윌로펌프 주식회사 Terminal block, motor using the same and pump with the motor
JP6127891B2 (en) * 2013-10-07 2017-05-17 住友電装株式会社 Ground terminal fitting connection structure
JP2017142886A (en) * 2016-02-08 2017-08-17 住友電装株式会社 Ground connection structure and ground terminal fittings

Also Published As

Publication number Publication date
WO2020057827A1 (en) 2020-03-26

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