EP1689078B1 - Einrichtung zum Absorbieren des elektrischen Rauschens - Google Patents

Einrichtung zum Absorbieren des elektrischen Rauschens Download PDF

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Publication number
EP1689078B1
EP1689078B1 EP06006998A EP06006998A EP1689078B1 EP 1689078 B1 EP1689078 B1 EP 1689078B1 EP 06006998 A EP06006998 A EP 06006998A EP 06006998 A EP06006998 A EP 06006998A EP 1689078 B1 EP1689078 B1 EP 1689078B1
Authority
EP
European Patent Office
Prior art keywords
housing
rib
features
face
corner
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
EP06006998A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1689078A1 (de
Inventor
Oliver Konz
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.)
Wuerth Elektronik GmbH and Co KG
Original Assignee
Wuerth Elektronik GmbH and Co KG
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 Wuerth Elektronik GmbH and Co KG filed Critical Wuerth Elektronik GmbH and Co KG
Publication of EP1689078A1 publication Critical patent/EP1689078A1/de
Application granted granted Critical
Publication of EP1689078B1 publication Critical patent/EP1689078B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support

Definitions

  • the invention is based on a device for absorbing electrical noise. It has long been known that elements of ferromagnetic material can reduce electrical noise on the line ( U.S. Patent 3,463,715 ).
  • EP-A-452992 There is already such a device known ( EP-A-452992 ), in which two half-elements made of ferromagnetic material are accommodated in a divided housing, the bottoms of which have elastic biasing means which press the two magnetic elements towards one another.
  • the invention has for its object to provide a simply constructed and safe-acting device for absorbing the electrical noise.
  • the invention proposes a device with the features of claim 1. Further developments of the invention are the subject matter of the dependent claims, the wording of which as well as the wording of the abstract is incorporated by reference into the content of the description.
  • the device is used so that the two elements of the noise-preventing material, which are hereinafter referred to as ferrite elements, in the housing shell parts are used and then the housing is placed around the electrical cable around.
  • the means for fixing the ferrite acts on at least one end corner edge of the ferrite element, which extends perpendicular to the interface between the two ferrite elements. Therefore, the fixing device acts in such a way that no forces arise which press the ferrite elements in the direction of the separating surface, so that they can not yield in the reverse direction.
  • the fixing device may have a web extending in the region of a corner of the housing half and extending obliquely to the corner, acting on the ferrite element. This bridge can be easily produced in production of the housing without additional effort.
  • the web can have a notch in which the corresponding corner of the ferrite element comes to lie.
  • the mentioned web is formed on the one hand on the end wall and on the other hand, the side wall of the housing. Between the two points where it is formed, it is preferably free, so that it can muster a certain tension.
  • the web is divided so that the mutually associated ends of the two parts of the web can engage the ferrite element.
  • the mutually facing ends of the two web portions are chamfered, wherein the chamfer is chosen in particular so that the oblique edges lie flat against the ferrite elements.
  • a web portion is integrally formed on the end wall and the other on the side wall of the partial shell of the housing.
  • the web or the two web parts does not extend to the bottom of the subshells of the housing.
  • the device may have a locking device for locking the housing in the closed state. This is to ensure that the housing does not open again, so that the device remains effective. It can be provided with advantage that the locking device is arranged and designed such that it does not protrude beyond the outside of the closed housing, in particular completely disposed within the housing. This precludes intentional or unintentional access to the locking device.
  • the locking device has an integrally formed on one edge of a housing half lug which engages latching in a recess in the edge of the other housing half. By this arrangement on the edge can be ensured that when the housing is closed, the tab is no longer accessible. It can be provided that the recess is open only in the interior of the housing.
  • the latching can in particular be designed so that it takes place at the end edges of the recess.
  • the tab has a resilient latching tongue in the area of at least one of its opposing front ends.
  • the latch can be formed such that it opposes an opening. This can be achieved by the type of arrangement of the spring, for example.
  • the housing can have an opening through which it can be attacked by means of a special tool on the locking device. Then a specialist is allowed to open the device and replace it if necessary.
  • the passage opening for the cable can be formed according to the invention of two recesses in the end walls of the two housing halves. When closing the housing, the two opposing recesses then form the passage opening. It can be provided that the two recesses are arranged offset along the mutually associated edges of the housing halves. This creates bottlenecks that can serve to compensate for different diameters of the cable without the recesses must deviate from the smooth shape.
  • the passage openings deviate from the circular shape, that is, for example, are oval or elliptical.
  • the two partial shells can be connected to each other for example by a film hinge. It is also possible that they are made separately and can be connected by plugging together.
  • Fig. 1 shows in a cross section an open of two housing halves 1, 2 existing housing.
  • Each housing half 1, 2 has the shape of a box open on one side with a bottom 3 and two longitudinal side walls 4, which are connected by front walls 5 before and behind the plane of the drawing.
  • the free edges 6 of side and end walls lie in one plane.
  • Two of the longitudinal side walls 4 facing each other are connected to each other by a film hinge 7.
  • the side wall 4 of one of the two housing halves facing away from the film hinge 7 contains a tab 8 which, together with a recess 9 in the opposite side wall 4 of the other housing half, forms a locking device.
  • each end wall 5 a semicircular recess 10 is formed, which is arranged at the same location of each end wall 5. If the two housing halves 1, 2 are folded around the axis formed by the film hinge 7, the free edges of the walls lie on one another, and the two recesses 10 form a passage opening. This passage opening has a circular shape.
  • webs 11 are arranged, which are integrally formed on the longitudinal side walls 4 and the end walls 5 and emanating from the dividing plane between the two housing halves forming edges. They range from the parting plane to slightly more than half the depth of the housing halves, so not up to the bottom 3.
  • the arrangement of the webs 11 is clear from Fig. 2, which shows a plan view of the arrangement of Fig. 1 from above.
  • the webs 11 consist of two parts 12, 13, which are arranged in mutual extension.
  • a web portion 12 is integrally formed on the inside of the end wall 5 and extends at an angle of about 45 ° in the direction of the adjacent longitudinal side wall 4.
  • the second web portion 13 is disposed on the adjacent longitudinal side wall 4 and also extends at an angle of about 45 ° in Direction to the adjacent end wall 5.
  • the corner 14 facing surfaces of the web parts 12, 13 lie in a plane.
  • the two free edges 15, 16 of the two parts 12, 13 of the web 12 are chamfered so that they form a corner with an angle of 90 °.
  • the edges 15, 16 can thus lie flat against the side surfaces 17, 18 of the corner of a ferrite element 19. Size tolerances of the ferrite elements 19 can be compensated for by a slight yielding of the web parts 12, 13 into the interior of the corner 14.
  • the webs 11 present at all four corners 14 of the housing halves 1, 2 form a fixing device in order to hold a ferrite element 19 in each housing half 1, 2.
  • An angular compensation for the ferrite elements 19 is provided in the form of a rounded projection 20 on the bottom 3 of each housing half 1, 2.
  • the tab 8 forming part of the locking device is formed on the edge 21 of the side wall 4. Its outer side 22 is offset from the outside 23 of the longitudinal side wall 4 inwards.
  • the tab 8 cooperates with the recess 9 of the opposite side wall 4 of the other housing half 1. This recess is open in the interior of the housing half 1. At two front ends 24 of the recess 9 ribs 25 are arranged to form a latching, see Fig. 1st
  • the tab 8 has in the region of its two end edges 25 each have a latching nose 26, see Fig. 4, which is formed at the end of a spring tongue 27.
  • the spring tongue 27 is integrally formed on the end surface 28 of the tab 8. This means that the latching lug 26 retained in the ribbing 25 wedges outwards when it is withdrawn and thereby reinforces the fixing.
  • the tab 8 in the interior of the housing directed projections 29 projecting beyond the inner side 30 of the longitudinal side wall 4. Since the two longitudinal side walls 4 in the region of the tab 8 and the recess 9 are the same thickness, these protrusions 29 are also in the closed housing on the inner wall.
  • the bottom 3 of the housing half 1, which contains the recess 9, contains two openings 31, which adjoin the inner side of the recess 9 having longitudinal side wall 4 directly. Through these openings, one can engage with a tool in the interior of the closed housing and bring by engaging the projections 29, the locking lugs 26 out of engagement with the ribs 25.
  • Fig. 3 shows a longitudinal section through the left in Figures 1 and 2 housing half with the recess 9. Due to the fact that the ribbing 25 on both end walls 24 of the recess 9 is present and the locking lugs 26 at both ends of the tab 8, can set the two locking lugs by spreading in the ribs 25.
  • Fig. 3 also shows that the webs 11 extend from the edge up to the same point, where the Recesses 10 ends, which together form the passage opening.
  • Fig. 5 now shows an end view of the housing shown in Figures 1 to 4 with the housing closed.
  • the housing forms, with the exception of the through hole 32 formed by the two recesses 10, a smooth outer side. Since the two recesses 10 are provided with the same diameter and have the same distance from both longitudinal sides, a circular passage opening 32 is formed.
  • the recesses are also semicircular with the same diameter, but arranged at staggered locations of the side walls 5.
  • a passage opening 33 is formed, which forms a constriction on the parting surface of the two housing halves, which can be used for fixing to the cable.
  • the two end walls 5 of the two housing halves also each have a recess 34 which differs in the example shown from the circular shape, so that in the closed state of the housing, an oval passage opening is formed.
  • Figs. 8 to 10 are diagrams corresponding to Figs. 3 to 1 in an embodiment which is somewhat modified. The description is limited to those parts in which a change has been made.
  • the webs for holding the corner edges of the ferrites 19 are designed differently.
  • the webs 41 extend from the bottom of the two housing halves and extend to about the middle of the height of the two housing halves.
  • the end edges directed towards the separating surface run in the side view at a right angle, as well as the two notch 42 forming notch flanks 15, 16 corresponding to the ends of the two web portions 12, 13.
  • a blind hole 43 extending from the edge 21 is formed on both sides of the recess 9, which is intended to receive a cylindrical pin 44.
  • the pins 44 can be seen in FIG.
  • the tab 45 corresponding to the tab 8 in the previous embodiment is slightly thicker overall, as well as the associated part of the side wall 4. Again, the recess 9 containing housing half 2 openings 31 are arranged in the bottom 3, by a specialist with a tool the tab 8 can attack to release the lock.
  • Fig. 10 it can be seen that instead of a centrally arranged film hinge two film hinges 7 are provided, which are arranged in the end region of the connection point between the two housing halves.
  • the thus freely available edges 21 of the two mutually facing side walls 4 are each provided with a recess 46 and a recess corresponding to the strip-like projection 47.
  • folding the projections 47 come to lie in the recesses 46.
  • an additional locking of the housing is given, which makes a lateral turning or shearing the housing halves almost impossible. It is therefore practically impossible to detach once again a cable-mounted electrical noise absorption device from the cable. Only people can do this who have the necessary tools and know how it can be used through the openings 31.
  • Fig. 11 shows a tool 50 in the form of a key, with which the collapsed housing can be opened again.
  • the key includes two parallel rectilinear rectangular cross-section legs 51, the spacing and size of which correspond to the spacing and size of the apertures 31 in the bottom of the housing half-shell. Reference is made to FIG. 2 for this purpose.
  • the legs 51 are sufficiently long to engage with the ends 52 on the projections 29 of the locking lugs 26 can. This makes it possible to bring the locking lugs 26 out of engagement with the ribs 25, so that the housing can be opened again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Filters And Equalizers (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Control Of Electric Motors In General (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
EP06006998A 1998-03-13 1999-03-11 Einrichtung zum Absorbieren des elektrischen Rauschens Expired - Lifetime EP1689078B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19811048A DE19811048A1 (de) 1998-03-13 1998-03-13 Einrichtung zum Absorbieren des elektrischen Rauschens
EP99913249A EP0981856B1 (de) 1998-03-13 1999-03-11 Einrichtung zum absorbieren des elektrischen rauschens

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP99913249A Division EP0981856B1 (de) 1998-03-13 1999-03-11 Einrichtung zum absorbieren des elektrischen rauschens

Publications (2)

Publication Number Publication Date
EP1689078A1 EP1689078A1 (de) 2006-08-09
EP1689078B1 true EP1689078B1 (de) 2007-07-11

Family

ID=7860859

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99913249A Expired - Lifetime EP0981856B1 (de) 1998-03-13 1999-03-11 Einrichtung zum absorbieren des elektrischen rauschens
EP06006998A Expired - Lifetime EP1689078B1 (de) 1998-03-13 1999-03-11 Einrichtung zum Absorbieren des elektrischen Rauschens

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99913249A Expired - Lifetime EP0981856B1 (de) 1998-03-13 1999-03-11 Einrichtung zum absorbieren des elektrischen rauschens

Country Status (17)

Country Link
US (1) US6400248B1 (pt)
EP (2) EP0981856B1 (pt)
JP (1) JP4312839B2 (pt)
CN (1) CN1264275C (pt)
AT (2) ATE327590T1 (pt)
AU (1) AU3144699A (pt)
CA (1) CA2288774C (pt)
DE (3) DE19811048A1 (pt)
DK (2) DK0981856T3 (pt)
ES (2) ES2289725T3 (pt)
HK (2) HK1026080A1 (pt)
MY (1) MY128937A (pt)
NO (1) NO315069B1 (pt)
PT (2) PT981856E (pt)
TR (1) TR199902791T1 (pt)
TW (1) TW508903B (pt)
WO (1) WO1999048198A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI780498B (zh) * 2019-10-11 2022-10-11 德商伍斯艾索電子有限公司及合資公司 用於吸收線上電子雜訊之裝置及配置此一裝置之方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326685A1 (de) * 2003-06-03 2004-12-23 Würth Elektronik eiSos Gmbh & Co. KG Vorrichtung zum Absorbieren des Rauschens
GB0500508D0 (en) * 2005-01-12 2005-02-16 Tyco Electronics Raychem Nv An interconection arrangement and related assemblies
DE102006027312A1 (de) * 2006-06-08 2007-12-13 Würth Elektronik eiSos Gmbh & Co. KG Vorrichtung zum Absorbieren des Rauschens
DE102010042743A1 (de) * 2010-10-21 2012-04-26 Würth Elektronik eiSos Gmbh & Co. KG Einrichtung zum Absorbieren des Rauschens
JP6142391B2 (ja) * 2013-08-08 2017-06-07 北川工業株式会社 保持具、及び雑音電流吸収具

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462715A (en) 1966-06-06 1969-08-19 Itt Removable electrical connector filter assembly
JPH0234875Y2 (pt) * 1986-08-29 1990-09-19
JPH0543510Y2 (pt) * 1988-09-29 1993-11-02
JP2521801Y2 (ja) * 1989-02-17 1997-01-08 北川工業 株式会社 雑音吸収具
DE9005965U1 (de) * 1989-05-29 1990-08-02 Kitagawa Industries Co., Ltd., Nagoya, Aichi Elektrischer Rauschabsorber
US5003278A (en) * 1990-03-01 1991-03-26 Ferrishield, Inc. Ferrite suppressor case with retaining fingers
JPH04363007A (ja) * 1991-01-24 1992-12-15 Nikko Kogyo Kk 信号弁別器
JPH0745995Y2 (ja) * 1991-07-18 1995-10-18 北川工業株式会社 雑音吸収具
US5373277A (en) * 1991-08-07 1994-12-13 Mitsubishi Denki Kabushiki Kaisha Signal discriminator
DE4302650C2 (de) * 1992-02-03 2001-07-19 Kitagawa Ind Co Ltd Elektrischer Rauschabsorber
US5334955A (en) * 1993-03-01 1994-08-02 Strnad Edward F Cable signal interference suppressor
US5703557A (en) * 1993-07-08 1997-12-30 Tokin Corporation Noise absorbing device
US5506909A (en) * 1994-05-23 1996-04-09 Jet Man Enterprise Co., Ltd. Noise filtering device
DE9408883U1 (de) * 1994-05-31 1994-07-28 Jet Man Enterprise Co., Ltd., Taipeh/T'ai-pei Störschutzfiltervorrichtung
US6023023A (en) * 1996-07-19 2000-02-08 Takeuchi Industrial Co., Ltd. Noise absorbing apparatus
JP3126922B2 (ja) * 1996-07-19 2001-01-22 竹内工業株式会社 ノイズ吸収装置
JP3246599B2 (ja) * 1997-03-14 2002-01-15 ティーディーケイ株式会社 ノイズ吸収装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI780498B (zh) * 2019-10-11 2022-10-11 德商伍斯艾索電子有限公司及合資公司 用於吸收線上電子雜訊之裝置及配置此一裝置之方法

Also Published As

Publication number Publication date
EP1689078A1 (de) 2006-08-09
HK1093386A1 (en) 2007-03-02
CA2288774A1 (en) 1999-09-23
NO995517L (no) 2000-01-12
AU3144699A (en) 1999-10-11
DE59914411D1 (de) 2007-08-23
CN1264275C (zh) 2006-07-12
PT1689078E (pt) 2007-08-13
TR199902791T1 (xx) 2000-07-21
DK0981856T3 (da) 2006-06-19
CA2288774C (en) 2009-08-18
MY128937A (en) 2007-03-30
DE19811048A1 (de) 1999-09-23
TW508903B (en) 2002-11-01
EP0981856B1 (de) 2006-05-24
PT981856E (pt) 2006-07-31
JP4312839B2 (ja) 2009-08-12
ES2267260T3 (es) 2007-03-01
HK1026080A1 (en) 2000-12-01
ES2289725T3 (es) 2008-02-01
ATE327590T1 (de) 2006-06-15
DE59913451D1 (de) 2006-06-29
ATE367012T1 (de) 2007-08-15
US6400248B1 (en) 2002-06-04
CN1258394A (zh) 2000-06-28
NO995517D0 (no) 1999-11-11
JP2001525128A (ja) 2001-12-04
NO315069B1 (no) 2003-06-30
WO1999048198A1 (de) 1999-09-23
DK1689078T3 (da) 2007-11-12
EP0981856A1 (de) 2000-03-01

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