GB2397179A - Stator structure having a printed circuit board with terminals connected thereto - Google Patents

Stator structure having a printed circuit board with terminals connected thereto Download PDF

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Publication number
GB2397179A
GB2397179A GB0212596A GB0212596A GB2397179A GB 2397179 A GB2397179 A GB 2397179A GB 0212596 A GB0212596 A GB 0212596A GB 0212596 A GB0212596 A GB 0212596A GB 2397179 A GB2397179 A GB 2397179A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
stator
board
projected
printed
connector
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.)
Granted
Application number
GB0212596A
Other versions
GB0212596D0 (en )
GB2397179B (en )
Inventor
Nishida Shigeru
Atsushi Kindaichi
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.)
Tamagawa Seiki Co Ltd
Original Assignee
Tamagawa Seiki Co Ltd
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

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/52Fastening salient pole windings or connections thereto
    • H02K3/521Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles

Abstract

The windings of a machine stator 1 are connected to tracks 11 on a printed circuit board 10. A portion 10A of the circuit board 10 extends beyond the periphery pf the stator. Tracks 11 extend onto portion 10A of the board and end at pads / holes 20 which are through-hole plated with a conductive film in a known manner. Either a connector 30 (fig. 1) or lead wires may be inserted into holes 20. As portion 10A of the board and holes 20 are located beyond the periphery of the stator, the connector or the lead wires may be attached after the stator has been sealed with resin.

Description

2397179 --.

STATOR STRUCTURE HAVING A PRINTED BOARD

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a stator structure having a printed board, and more particularly to a novel improvement in which a connector or a lead wire allows to be provided to a projected boardportionthatprojectsexternallytoanouterdiameterposition of an annular stator, whereby any of the connector and the lead wire can be freely selected as a drawing means that connects to stator windings even after the stator windings are sealed with a resin.

2. Description of the Related Art

Astator structure ofthis'-il.d, whichis convelltionallyused, can be generally shown in a first conventional example shown in Figs. 4 and 5 and a second conventional example shown in Figs. 6 and 7.

That is, in case of the first conventional example shown in Figs.4 and 5, reference numeral 1 indicates a multi-layered annular stator having an annular shape in general, and stator windings 3 of U. V and phases are wound through an insulating cover 4 formed into an annular shape, for example, in respective slots 2 of the annular stator 1.

A lead wire 5 connected to the stator windings 3 is held in a groove portion 4a formed in the insulating cover 4 to be guided to the outside.

Therefore, in the above-mentioned state, a resin-sealed portion 6 is formed into an annular shape, whereby the stator windings3 end the insulating cover4 can beresin-sealedintegrally with the annular stator 1. The lead wire 5 is buried in the resin-sealed portion 6.

Further, in addition to the structure of the above-mentioned first conventional example, in case of the second conventional example shown in Figs. 6 and 7, the parts identical with or equivalenttothoseinthefirstconventionalexamplearedesignated by the same reference symbols. A description therefor is omitted, and only different parts will be described. That is, an annular printed bo='d'O,,.,hl_h is fo...ed into an annular shape, is fixedl,- arrangedin an upper portion oftheinsulating covers, end a primed pattern 11 formed on the annular printed board 10 is connected to the stator windings 3. Also, the lead wire 5 connected to the printed pattern 11 is held in the upper portion of the insulating cover 4.

The resin-sealed portion 6 is formed into an annular shape, whereby the stator windings 3 and the insulating cover 4 can be resin-sealed integrally with the annular stator 1. The lead wire is buried in the resin-sealed portion 6.

The conventional stator structure is structured as described above, and therefore, involves the following problem.

That is, in the first conventional example shown in Figs. 4 and5, the lead wire connected to the stator windings is integrally buried in the resin-sealed portion. Thus, for example, in case of a motor, the invention has been limited to the structure in which only a lead wire is drawn from the motor.

Therefore, it has been difficult to deal with a user who requests drawing by a connector.

Further, in the second conventional example shown in Figs. 6 and 7, the annular printed board is attached to the insulating cover, end the stator windings are connected tothelead wire through the annular printed board. Thus, when the resin sealing is conducted with the resin- sealeU portion, the annular primed board, the stator 'Tir.dirgs, the insula,lily cure-and the lead wire are integrated with the resin-sealed portion. Therefore, the invention has been limited to the structure with the lead wire drawing as described above.

Saul- OF THFL IvENTION The present invention has been made to solve the above- mentioned problems, and an object of the present invention is therefore to particularly provide a stator structure having a printed board in which a connector or a lead wire allows to be provided to a projected board portion that projects externally to an outer diameter position of an annular stator, whereby any of the connector and the lead wire can be freely selected as a drawing means that connects to stator windings even after the stator windings are resin-sealed.

A stator structure having a printed board according to the present invention comprises: stator windings provided through an insulating coverin respective slots of en annular stator; a primed board provided on one end side of the insulating cover; a projected board portion whichis formedin the primed board end which projects externally to an outer diameter position of the annular stator; and printed patterns continuously formed from the printed board to the projected board portion, in which the printed patterns each have one end connected to the stator windings. Also, in the Str"CtUú, through holes are provided which are formed in the printed patterns provided on the projected board portion and which are bored through the projected board portion. Also, in the structure, the projected board portion is provided with a connector arranged along the outer diameter position of the annular stator, and connector pins of the connector are insertedly arranged in the through holes. Also, in the structure, a lead wire is connected to the projected board portion while passing through the through hole, and the lead wire is positioned externally to the outer diameter position of the annular stator.

BRIE2LDESCRIPTION OF THE DRAWINGS

In the accompanying drawings: Fig. 1 is a cross-sectional view of a stator structure having a printed board according to the present invention; Fig. 2 is a plan view corresponding to the cross-sectional view of Fig. 1; Fig. 3 is a cross-sectional view of another stator structure different from that in Fig. 1; Fig. 4 is a cross-sectional view of a first conventional stator structure; Fig. 5 is a plan view corresponding to the cross-sectional view of Fig. 4; Fig. 6 is a cross- sectional view of a second conventional scacor struct-u-e; arid Fig. 7 is a plan view corresponding to the cross-sectional view of Fig. 6.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMFNTS

Hereinafter, preferred embodiments of a stator structure having a printed board according to the present invention will be described with reference to the accompanying drawings. Note that the parts identical with or equivalent to those in the conventional examples are designated by the same symbols.

In Figs.lto3, reference numeral! indicates amulti-layered annular stator having an annular shape in general, and stator windings 3 of U. V and W phases are wound through an insulating cover 4 formed into an annular shape in respective slots 2 of the annular stator 1.

As shown in Fig. 2, an upper portion of the insulating cover 4 is fixedly arranged with a U-shaped printed board 10 having an semi- annular shape in general which integrally has at one end thereofaprojectedboardportionl0Athatprojects along the radius direction.

The projected board portion 10A has substantially a rectangular shape in plane, and is positioned such that the almost region of the shape projects externally to an outer diameter position 1A that forms an outer diameter of the annular stator 1.

On the primed board 10, pl^inteUpattel-lls 11 are continuouslv- formed from the printed board 10 to the projected board portion 10A, and a plurality of through holes 20, which are bored through the projected board portion 10A in a board thickness direction, are formed at one ends of the respective printed patterns 11 positioned on the projected board portion 10A. Further, the stator windings 3 are connected to the printed patterns 11.

The through holes 20 are provided with a conductive film on an inside thereof wish, forexample, a known through-hole technique so as to have electrical continuity with the printed patterns 11.

Accordingly, the stator windings 3, the insulating cover 4 and the annular stator 1 are integrated by being covered by the resin-sealed portion 6.

A connector 30 is attached to alower surface of the projected board portion lOA in Fig. 1, and connector pins 31 of the connector pass through the through holes 20 and are fixed by soldering or the like. Also, electrical continuity is established between the connector pins 31 and the printed patterns 11.

The connector30 is provided externalIyto the outer diameter position 1A and provided to have a long shape along the outer diameter position 1A.

Further, in another embodiment of a stator structure shown in Fig. 3, a lead wire 5 is insertedly arranged in the through hole of the projected board portion lOA, and the lead wire 5 is positioned externally to the outer diameter position iA.

Therefore, in the above-mentioned embodiments shown in Fig. 1 and Fig. 3, input or output of signals to the stator windings 3 can be conducted through the connector 30 or the lead wire 5.

Further, any of the connector 30 and the lead wire 5 can be attached to the projected board portion 1OA even after the resin-sealed portion 6 is provided, and any of them can be used in accordance with the request from an user. Note that the printed board 10 has a ser.i-annular shape, but may also have an annular shape.

The stator structure having a printed board according to the present invention is structured as described above, and thus, the following effect can be obtained.

That is, since the projected board portion of the printed board provided in the annular stator projects externally to the outer diameter position of the annular stator, the connector or thelead wire can tee directly attached to the projected board portion in accordance with the request from the user even after the resin-sealed portion of the stator windings is formed. Thus, the request from the user can be freely accepted, and therefore, the workability can be remarkably improved in comparison with the conventional case.

Claims (4)

  1. WHET IS CLAIMED IS: A stator structure having a printed board, comprising:
    stator windings (3) provided through an insulating cover (4) in respective slots (2) of an annular stator (1); a printed board (10) provided on one end side of the insulating cover (4); a projected board portion (1OA) which is formed in the printed board (10) and which projects externally to an outer diameter position (1A) of the annular stator (1); and printed patterns (11) continuously formed from the printed board (10) to the projected board portion (1OA), the printed patterns (11) each having one end connected to the stator windings (3).
  2. 2. A stator structure having a printed board according to claim 1, wherein through holes (20) are provided which are formed in the primed pasterns (11) provided on the projected board portion (1OA) end which are bored through the projected board portion (1OA).
  3. 3. A stator structure having a printed board according to claim 2, wherein the projected board portion (1OA) is provided with a connector (30) arranged along the outer diameter position (1A) of the annular stator (1), and connector pins (31) of the connector (30) are insertedly arranged in the through holes (20).
  4. 4. A stator structure having a printed board according to claim 2, wherein a lead wire (5) is connected to the projected board portion (1OA) while passing through the through hole (2G), and the lead wire (5) is positioned externally to the outer diameter position (1A) of the annular stator (1).
GB0212596A 2002-05-30 2002-05-30 Stator structure having a printed board Expired - Fee Related GB2397179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0212596A GB2397179B (en) 2002-05-30 2002-05-30 Stator structure having a printed board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0212596A GB2397179B (en) 2002-05-30 2002-05-30 Stator structure having a printed board

Publications (3)

Publication Number Publication Date
GB0212596D0 true GB0212596D0 (en) 2002-07-10
GB2397179A true true GB2397179A (en) 2004-07-14
GB2397179B GB2397179B (en) 2004-10-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0212596A Expired - Fee Related GB2397179B (en) 2002-05-30 2002-05-30 Stator structure having a printed board

Country Status (1)

Country Link
GB (1) GB2397179B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050818A1 (en) * 2003-11-20 2005-06-02 Intelligent Electric Motor Solutions Pty Ltd Electric machine improvement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039875A (en) * 1975-11-07 1977-08-02 Computer Devices Corporation Method and apparatus for interconnecting stator coils
JPS589563A (en) * 1981-07-07 1983-01-19 Mitsubishi Electric Corp Transistor motor
JPS61214740A (en) * 1985-03-18 1986-09-24 Matsushita Electric Ind Co Ltd Molded motor
JPS62290343A (en) * 1986-06-09 1987-12-17 Matsushita Electric Ind Co Ltd Brushless dc motor
JPH09327165A (en) * 1996-06-05 1997-12-16 Janome Sewing Mach Co Ltd Support device for printed-circuit board in stepping motor
JPH10191615A (en) * 1996-12-24 1998-07-21 Tec Corp Stepping motor
JP2000125495A (en) * 1998-10-09 2000-04-28 Matsushita Electric Ind Co Ltd Stator of inner-rotor type motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3045762B2 (en) * 1990-11-20 2000-05-29 松下精工株式会社 The stator of the resin molded motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039875A (en) * 1975-11-07 1977-08-02 Computer Devices Corporation Method and apparatus for interconnecting stator coils
JPS589563A (en) * 1981-07-07 1983-01-19 Mitsubishi Electric Corp Transistor motor
JPS61214740A (en) * 1985-03-18 1986-09-24 Matsushita Electric Ind Co Ltd Molded motor
JPS62290343A (en) * 1986-06-09 1987-12-17 Matsushita Electric Ind Co Ltd Brushless dc motor
JPH09327165A (en) * 1996-06-05 1997-12-16 Janome Sewing Mach Co Ltd Support device for printed-circuit board in stepping motor
JPH10191615A (en) * 1996-12-24 1998-07-21 Tec Corp Stepping motor
JP2000125495A (en) * 1998-10-09 2000-04-28 Matsushita Electric Ind Co Ltd Stator of inner-rotor type motor

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
PAJ abstract & JP 10191615 A (Tokyo Electric) *
PAJ abstract & JP 2000125495 A (Matsushita) *
PAJ abstract & JP 58009563 A (Mitsubishi) *
PAJ abstract & JP 61214740 A (Matsushita) *
PAJ abstract & JP 62290343 A (Matsushita) *
PAJ abstract & JP 9327165 A (Janome sewing machine) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050818A1 (en) * 2003-11-20 2005-06-02 Intelligent Electric Motor Solutions Pty Ltd Electric machine improvement
US7582999B2 (en) 2003-11-20 2009-09-01 Intelligent Electric Motor Solutions Pty Ltd Electric machine having a magnetically inducible core

Also Published As

Publication number Publication date Type
GB0212596D0 (en) 2002-07-10 application
GB2397179B (en) 2004-10-27 grant

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

Effective date: 20130530