GB2171562A - A coil body for a high-voltage winding - Google Patents

A coil body for a high-voltage winding Download PDF

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Publication number
GB2171562A
GB2171562A GB08603124A GB8603124A GB2171562A GB 2171562 A GB2171562 A GB 2171562A GB 08603124 A GB08603124 A GB 08603124A GB 8603124 A GB8603124 A GB 8603124A GB 2171562 A GB2171562 A GB 2171562A
Authority
GB
United Kingdom
Prior art keywords
winding
partition wall
opening
coil body
wire
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
GB08603124A
Other versions
GB8603124D0 (en
GB2171562B (en
Inventor
Paul Worz
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 GB8603124D0 publication Critical patent/GB8603124D0/en
Publication of GB2171562A publication Critical patent/GB2171562A/en
Application granted granted Critical
Publication of GB2171562B publication Critical patent/GB2171562B/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

A coil body for a high-voltage winding has the form of a hollow cylinder with circumferential groove- like winding chambers 4 defined by partition walls 5. The chambers 4 contain windings 6 connected in series. For the winding wire 7 to pass from one chamber to another, an opening 8 is provided whose depth (t) is smaller than the height (h) of the partition wall. The wire passes through the opening from the region of the upper edge of the partition wall to the base area, with the wire supported by a supporting face 11, whose height (a) gradually decreases. The supporting face is formed by reducing the wall thickness towards the opening on either side thus providing an optimum passage of the winding wire 7 through the opening 8, even if winding is carried out mechanically. <IMAGE>

Description

SPECIFICATION A coil body for a high-voltage winding The invention relates to a coil body for a high voltage winding, and in particular, but not exclusively, to a coil body for the secondary winding of a motor vehicle ignition coil.
A similar type of coil body is already known (from German Utility Model No. 83 17 447.8), in which, however, the winding groups touch each other through openings or can approach one another to within a very short distance, thus not excluding the possibility of electric spark-overs. The winding wire can also take an undesired course when passing through the openings, for example by buckling against other windings. Finally, the problem of guiding the wire as it passes through the opening has not been optimally solved in the known coil body.
In accordance with the present invention, there is provided a coil body for a high-voltage winding, the coil body comprising insulating material in the form of a hollow body having two open end faces, and which is further provided with external, circumferential groove-like winding chambers, which chambers are defined laterally by partition walls, the winding chambers each containing one of a plurality of winding groups which are connected electrically in series, an opening being provided in the intermediate partition wall for the passage of the winding wire from one winding chamber to another winding chamber, the depth of which opening is smaller than the height of the partition wall, wherein the course of the wire through the opening runs from the region of the upper edge of the partition wall to the base area of the partition wall, the wire being supported by a supporting face, the height of which face gradually decreases, the supporting face in the base area of the partition wall being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening, the supporting face in the region of the upper edge of the partition wall also being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening.
This provides a coil body which satisfactorily avoids the above-mentioned disadvantages.
By way of example only, a specific embodiment of the present invention will now be described, with reference to the accompanying drawings, in which: Fig. 1 is a side view of a coil body according to the present invention; and Fig. 2 and Fig. 3 are enlarged views of the portion of coil body with a winding wire passing therethrough.
The coil body illustrated is intended for accommodating a high-voltage winding 1, in particular the secondary winding of an ignition coil belonging to a motor vehicle. The coil body is made of an insulating material preferably of polycarbonate having 20% glass fibres as filling material. In the disassembled state, it is in the form of a hollow body with two open end faces 2, 3.
Circumferential groove-type winding chambers 4 are provided on the outer periphery and are limited laterally by partition wall 5. The winding 1 is subdivided into winding groups 6 which are electrically connected in series, one of which is located in each of the winding chambers 4. For the winding wire 7 to pass from one winding chamber 4 to another winding chamber 4, there is a notch-type opening 8 in the intermediate partition wall 5, the depth t of which is smaller than the height h of the partition wall. For reasons of stability, the openings 8 in two adjacent partition walls are offset at an angle of 1800 in the peripheral direction of the coil body.The winding wire 7 commences in the opening in the region of the upper edge 9 of the partition wall and leads, in approximate continuation of the winding direction, to the base area 10 of the partition wall.
The winding wire is at the same time supported by a supporting face 1 1,whose height a gradually decreases, resulting in an inclined plane surface between the upper edge 9 of the partition wall and the base area 10. The supporting face 11 in the base area 10 of the partition wall 4 arises from the fact thatthe thickness b of the partition wall 4, which tapers somewhat towards the top, is reduced towards the opening 8, and this reduction 13 takes place from the side of the wall from which the winding wire 7 passes through the opening.
The application of these measures produces a favourable course for the winding wire 7 in the region of the opening 8 and reliably prevents the adjacent winding groups 4 from touching each other or the winding wire 7 from passing through the opening 8, and thus causing electric spark-overs.
1. A coil body for a high-voltage winding, the coil body comprising insulating material in the form of a hollow body having two open end faces, and which is further provided with external, circumferential groove-like winding chambers, which chambers are defined laterally by partition walls, the winding chambers each containing one of a plurality of winding groups which are connected electrically in series, an opening being provided in the intermediate partition wall for the passage of the winding wire from one winding chamber to another winding chamber, the depth of which opening is smaller than the height of the partition wall, wherein the course of the wire through the opening runs from the region of the upper edge of the partition wall to the base area of the partition wall, the wire being supported by a supporting face, the height of which face gradually decreases, the supporting face in the base area of the partition wall being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening, the supporting face in the region of the upper edge of the partition wall also being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A coil body for a high-voltage winding The invention relates to a coil body for a high voltage winding, and in particular, but not exclusively, to a coil body for the secondary winding of a motor vehicle ignition coil. A similar type of coil body is already known (from German Utility Model No. 83 17 447.8), in which, however, the winding groups touch each other through openings or can approach one another to within a very short distance, thus not excluding the possibility of electric spark-overs. The winding wire can also take an undesired course when passing through the openings, for example by buckling against other windings. Finally, the problem of guiding the wire as it passes through the opening has not been optimally solved in the known coil body. In accordance with the present invention, there is provided a coil body for a high-voltage winding, the coil body comprising insulating material in the form of a hollow body having two open end faces, and which is further provided with external, circumferential groove-like winding chambers, which chambers are defined laterally by partition walls, the winding chambers each containing one of a plurality of winding groups which are connected electrically in series, an opening being provided in the intermediate partition wall for the passage of the winding wire from one winding chamber to another winding chamber, the depth of which opening is smaller than the height of the partition wall, wherein the course of the wire through the opening runs from the region of the upper edge of the partition wall to the base area of the partition wall, the wire being supported by a supporting face, the height of which face gradually decreases, the supporting face in the base area of the partition wall being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening, the supporting face in the region of the upper edge of the partition wall also being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening. This provides a coil body which satisfactorily avoids the above-mentioned disadvantages. By way of example only, a specific embodiment of the present invention will now be described, with reference to the accompanying drawings, in which: Fig. 1 is a side view of a coil body according to the present invention; and Fig. 2 and Fig. 3 are enlarged views of the portion of coil body with a winding wire passing therethrough. The coil body illustrated is intended for accommodating a high-voltage winding 1, in particular the secondary winding of an ignition coil belonging to a motor vehicle. The coil body is made of an insulating material preferably of polycarbonate having 20% glass fibres as filling material. In the disassembled state, it is in the form of a hollow body with two open end faces 2, 3. Circumferential groove-type winding chambers 4 are provided on the outer periphery and are limited laterally by partition wall 5. The winding 1 is subdivided into winding groups 6 which are electrically connected in series, one of which is located in each of the winding chambers 4. For the winding wire 7 to pass from one winding chamber 4 to another winding chamber 4, there is a notch-type opening 8 in the intermediate partition wall 5, the depth t of which is smaller than the height h of the partition wall. For reasons of stability, the openings 8 in two adjacent partition walls are offset at an angle of 1800 in the peripheral direction of the coil body.The winding wire 7 commences in the opening in the region of the upper edge 9 of the partition wall and leads, in approximate continuation of the winding direction, to the base area 10 of the partition wall. The winding wire is at the same time supported by a supporting face 1 1,whose height a gradually decreases, resulting in an inclined plane surface between the upper edge 9 of the partition wall and the base area 10. The supporting face 11 in the base area 10 of the partition wall 4 arises from the fact thatthe thickness b of the partition wall 4, which tapers somewhat towards the top, is reduced towards the opening 8, and this reduction 13 takes place from the side of the wall from which the winding wire 7 passes through the opening. The application of these measures produces a favourable course for the winding wire 7 in the region of the opening 8 and reliably prevents the adjacent winding groups 4 from touching each other or the winding wire 7 from passing through the opening 8, and thus causing electric spark-overs. CLAIMS
1. A coil body for a high-voltage winding, the coil body comprising insulating material in the form of a hollow body having two open end faces, and which is further provided with external, circumferential groove-like winding chambers, which chambers are defined laterally by partition walls, the winding chambers each containing one of a plurality of winding groups which are connected electrically in series, an opening being provided in the intermediate partition wall for the passage of the winding wire from one winding chamber to another winding chamber, the depth of which opening is smaller than the height of the partition wall, wherein the course of the wire through the opening runs from the region of the upper edge of the partition wall to the base area of the partition wall, the wire being supported by a supporting face, the height of which face gradually decreases, the supporting face in the base area of the partition wall being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening, the supporting face in the region of the upper edge of the partition wall also being formed by the thickness of the partition wall being reduced towards the opening, the reduction taking place from the side of the wall from which the winding wire passes through the opening.
2. A coil body as claimed in claim 1, wherein the coil body is for the secondary winding of a motor vehicle ignition coil.
3. A coil body as claimed in claim 1 or claim 2, wherein the coil body comprises polycarbonate.
4. A coil body as claimed in claim 3, wherein the coil body further comprises glass fibre.
5. A coil body for a-high-voltage winding, substantially as herein described, with reference to, and as illustrated in the accompanying drawings.
GB08603124A 1985-02-08 1986-02-07 A coil body for a high-voltage winding Expired GB2171562B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853504298 DE3504298A1 (en) 1985-02-08 1985-02-08 FOR A HIGH VOLTAGE WINDING, ESPECIALLY FOR THE SECOND DEVELOPMENT OF A MOTOR VEHICLE IGNITION COIL OF SPECIFIC COIL BODIES

Publications (3)

Publication Number Publication Date
GB8603124D0 GB8603124D0 (en) 1986-03-12
GB2171562A true GB2171562A (en) 1986-08-28
GB2171562B GB2171562B (en) 1988-08-03

Family

ID=6261994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08603124A Expired GB2171562B (en) 1985-02-08 1986-02-07 A coil body for a high-voltage winding

Country Status (3)

Country Link
JP (1) JPS61187212A (en)
DE (1) DE3504298A1 (en)
GB (1) GB2171562B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565964A2 (en) * 1992-04-14 1993-10-20 BERU Ruprecht GmbH &amp; Co. KG High voltage coil for an ignition transformer
FR2700884A1 (en) * 1993-01-28 1994-07-29 Sagem Allumage Secondary winding coil of ignition coil for internal combustion engine.
EP0609850A2 (en) * 1993-02-05 1994-08-10 Kabushiki Kaisha Sanyo Denki Seisakusho Transformer unit and coil case and coil bobbin for use therefor
US7330092B2 (en) 2004-09-11 2008-02-12 Bruker Biospin Gmbh Superconductor magnet coil configuration
CN106469597A (en) * 2015-08-21 2017-03-01 罗伯特·博世有限公司 There is magnet exciting coil and the method for installing winding of winding carrier
US11335526B2 (en) * 2018-08-28 2022-05-17 Mahle International Gmbh Coil carrier for an electromagnetic switch

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01135718U (en) * 1988-03-09 1989-09-18
JPH088176B2 (en) * 1988-05-31 1996-01-29 株式会社テック Section bobbin
JPH0655225U (en) * 1993-01-12 1994-07-26 四変テック株式会社 Bobbin for high voltage wire
US5696477A (en) * 1994-05-30 1997-12-09 Tabuchi Electric Co., Ltd. Transformer
DE10216846B4 (en) * 2002-04-16 2006-05-04 Vogt Electronic Ag bobbins
JP4797337B2 (en) * 2004-05-26 2011-10-19 パナソニック電工株式会社 Bobbins, inductances, transformers, and pulse generators
JP6264269B2 (en) * 2014-12-01 2018-01-24 株式会社デンソー Winding device
JP7162108B1 (en) * 2021-08-25 2022-10-27 株式会社ダイヘン Transformer and method of manufacturing the transformer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661342A (en) * 1970-08-19 1972-05-09 Jackson Controls Co Inc Operative winding separator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3038672A1 (en) * 1980-10-14 1982-05-27 Sachße, Brigitte, 8500 Nürnberg Coil former for use in automatic winding - has multiple coil chambers with interconnecting inclined slot
DE8317447U1 (en) * 1983-06-15 1984-11-22 Robert Bosch Gmbh, 7000 Stuttgart CHAMBER COIL, IN PARTICULAR IGNITION COIL FOR IGNITION SYSTEMS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661342A (en) * 1970-08-19 1972-05-09 Jackson Controls Co Inc Operative winding separator

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565964A2 (en) * 1992-04-14 1993-10-20 BERU Ruprecht GmbH &amp; Co. KG High voltage coil for an ignition transformer
EP0565964A3 (en) * 1992-04-14 1993-11-03 BERU Ruprecht GmbH &amp; Co. KG High voltage coil for an ignition transformer
US5523733A (en) * 1993-01-28 1996-06-04 Sagem Allumage Secondary winding bobbin for an ignition coil for an internal combustion engine
EP0609109A1 (en) * 1993-01-28 1994-08-03 SAGEM ALLUMAGE Société Anonyme Bobbin for secondary winding of ignition coil for internal combustion engine
FR2700884A1 (en) * 1993-01-28 1994-07-29 Sagem Allumage Secondary winding coil of ignition coil for internal combustion engine.
CN1041765C (en) * 1993-01-28 1999-01-20 沙甘姆引燃公司 Secondary winding bobbin for an ignition coil for an internal combustion engine
EP0609850A2 (en) * 1993-02-05 1994-08-10 Kabushiki Kaisha Sanyo Denki Seisakusho Transformer unit and coil case and coil bobbin for use therefor
EP0609850A3 (en) * 1993-02-05 1994-11-30 Sanyo Electric Works Transformer unit and coil case and coil bobbin for use therefor.
US5754086A (en) * 1993-02-05 1998-05-19 Kabushiki Kaisha Sanyo Denki Seisakusho Transformer unit and coil case and coil bobbin for use therefor
US7330092B2 (en) 2004-09-11 2008-02-12 Bruker Biospin Gmbh Superconductor magnet coil configuration
CN106469597A (en) * 2015-08-21 2017-03-01 罗伯特·博世有限公司 There is magnet exciting coil and the method for installing winding of winding carrier
CN106469597B (en) * 2015-08-21 2018-09-21 Seg汽车德国有限责任公司 Magnet exciting coil with winding carrier and the method for installing winding
US11335526B2 (en) * 2018-08-28 2022-05-17 Mahle International Gmbh Coil carrier for an electromagnetic switch

Also Published As

Publication number Publication date
DE3504298A1 (en) 1986-08-14
GB8603124D0 (en) 1986-03-12
JPS61187212A (en) 1986-08-20
GB2171562B (en) 1988-08-03

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PCNP Patent ceased through non-payment of renewal fee