EP1476924A1 - Boitier avec element de decharge de tension integre - Google Patents

Boitier avec element de decharge de tension integre

Info

Publication number
EP1476924A1
EP1476924A1 EP03704220A EP03704220A EP1476924A1 EP 1476924 A1 EP1476924 A1 EP 1476924A1 EP 03704220 A EP03704220 A EP 03704220A EP 03704220 A EP03704220 A EP 03704220A EP 1476924 A1 EP1476924 A1 EP 1476924A1
Authority
EP
European Patent Office
Prior art keywords
housing
cable
strain relief
housing shell
shell
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Withdrawn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
EP03704220A
Other languages
German (de)
English (en)
Inventor
Peter Bruder
Frank Kopf
Parag A. Athalye
Kevin Cherry
Billy P. Hawes
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 EP1476924A1 publication Critical patent/EP1476924A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • H05K7/1418—Card guides, e.g. grooves
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5833—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being forced in a tortuous or curved path, e.g. knots in cable
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/007—Devices for relieving mechanical stress
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0204—Mounting supporting structures on the outside of casings
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing

Definitions

  • the present invention relates to a housing for an electrotechnical product, which has a cable for an electrical connection.
  • DE-21 55 231 discloses a strain-relieved cable leadthrough a wall in electrical devices, in which two plastic parts are inserted into a hole in the wall, the shape of which complements one another and the cable or individual lines in their interface take up. The two parts are used in separate housing shells of the electrotechnical product. The cable is then inserted and the two housing halves are connected to one another during the final assembly, the cable being pinched by the plastic parts that meet.
  • this known strain relief has the disadvantage that it has a relatively high level Assembly effort required and has a variety of items.
  • the cable is firmly molded as an insert in a single plastic part. Although no further individual parts are necessary here, embedding the cable in the plastic requires a high temperature resistance of the cable insulation and high demands on the plastic. This also increases the costs and a rubber material is often used instead of a plastic in order to avoid damage to the cable.
  • the strain relief according to the invention for a cable of an electrical product has the advantage that the strain relief is integrally formed in a housing shell. This makes it possible to dispense with additional individual components.
  • the first housing shell, in which the strain relief is integrally formed is made of an electrically insulating material.
  • the strain relief has a first and a second clamping jaw, between which the cable is guided.
  • This design makes it possible for the cable to be easily clamped between the two clamping jaws before the actual assembly of the housing and can thus be positioned at the correct position between the clamping jaws without aids or holding.
  • the strain relief is constructed in such a way that the two clamping jaws are relative when the two housing shells are assembled move towards each other to securely clamp the cable for strain relief.
  • the strain relief according to the invention can be provided in a particularly cost-effective manner and, furthermore, the assembly costs are also reduced, since no complex positioning and assembly of several individual components is necessary for the strain relief.
  • the first and the second clamping jaw are preferably arranged in a common plane perpendicular to the cable guide.
  • the first and the second clamping jaw are arranged offset from one another in the direction of the cable routing.
  • the two clamping jaws are preferably arranged in different planes perpendicular to the cable routing.
  • a recess is formed in the second housing shell, which has a shape that corresponds to the strain relief formed integrally with the first housing shell, so that in the assembled state of the two housing shells the clamping jaws of the strain relief through the recess of the second housing shell squeezed to clamp the cable.
  • the second housing shell is preferably made of metal.
  • the electrical insulation is provided by the integral strain relief made of an insulating material.
  • This housing shell made of metal is particularly preferably a pole housing of an electrical machine.
  • the first housing shell with integrated strain relief made of an insulating material is a brush holder of an electrical machine.
  • the housing shell made of an insulating material is preferably made of a thermoplastic.
  • the strain relief according to the invention By designing the strain relief according to the invention with at least two clamping jaws between which the cable is clamped, so-called sliders, which are otherwise necessary in the production of plastic parts with an undercut, can also be dispensed with in the production of an injection molding machine. Since, according to the invention, however, no undercuts are necessary for the strain relief, this slide can also be dispensed with. As a result, the tool costs for manufacturing the housing shell with integrated strain relief can also be reduced.
  • the threading of the cable into the remounted strain relief can also be facilitated with the integrated strain relief according to the invention.
  • the cable can be passed between the two jaws of the strain relief and pre-tensioned by the two jaws until it is connected electrically, for example by means of welding, soldering, crimping, plugging, etc.
  • contact points at which the clamping jaws touch the cable are extended in the manner of a trough in the direction of the cable run.
  • an offset molding of the trough-like features can be provided.
  • a pretension for the cable arises when the trough-like guidance tapered behind the first single thread location. As soon as the guide cross-section becomes smaller than the cable cross-section, there is a slight tension, so that the cable is temporarily fixed and can be connected without any problems.
  • an assembly in the integrated, one-piece strain relief according to the invention can be carried out in such a way that the two housing shells are produced first, and then the cable is guided into the integrated strain relief, i.e. is threaded through between the jaws, then electrically contacted and then the second housing shell is placed. During this process, the cable is clamped in the strain relief, so that the cable is securely mounted.
  • the term cable is understood to mean both a single line and a cable with a plurality of individual lines therein.
  • FIG. 1 shows a perspective view of a housing with integrated strain relief according to a first exemplary embodiment of the present invention
  • FIG. 2 shows a schematic, enlarged side view of the strain relief according to the first exemplary embodiment before assembly
  • FIG. 3 shows a sectional view along the line AA from FIG. 2, the strain relief being shown in the assembled state
  • Figure 4 is a side view of a housing with integrated strain relief according to a second exemplary embodiment of the present invention before assembly and
  • Figure 5 is a sectional view taken along line B-B of Figure 4 of the housing according to the second embodiment in the assembled state.
  • a housing 1 with integrated strain relief 4 is described below with reference to FIGS. 1 to 3.
  • the housing 1 consists of a first housing shell or half 2 and a second housing shell or half 3.
  • the strain relief 4 is integrally formed on the first housing shell 2.
  • the strain relief 4 is shown in more detail in FIGS. 2 and 3.
  • the strain relief 4 comprises a first clamping jaw 5 and a second clamping jaw 6.
  • the two clamping jaws 5, 6 are designed in such a way that there is a slot-shaped space 11 between them, in which the cable is arranged.
  • two lines 10 are provided in this exemplary embodiment, which are routed together in a cable 8 by means of insulation (cf. FIG. 1). Therefore, as shown in Figure 2, both the left and right are the second Clamping jaws each have a first clamping jaw 5 arranged to clamp a separate line 10 and to relieve tension.
  • the first jaw 5 and the second jaw 6 is arranged in a plane EE perpendicular to the cable routing through the housing.
  • the line 10 is connected to an electrical connection 9 of the electrotechnical product surrounded by the housing 1.
  • the electrotechnical products shown in FIGS. 1 to 3 are an electrical machine, the housing shell 3 being made of metal and serving as a pole housing for the electrical machine.
  • the first housing shell 2 is made of an electrically insulating material, such as a plastic. This makes it possible that in the first housing shell
  • strain relief 4 in one piece with the first housing shell 2, e.g. by means of injection molding.
  • the first clamping jaws 5 of the strain relief 4 are partially elastic, so that the cable 10 arranged in the slot-shaped recess 11 is held lightly before the second housing shell 3 is put on.
  • a recess 7 is formed in the second housing shell 3, which corresponds to the outer contour of the strain relief 4.
  • the two first clamping jaws 5 are designed such that they taper in the direction of the second housing shell 3. If now the second housing shell
  • the strain relief 4 formed integrally in the first housing shell 2 can withstand repeated dismantling of the two housing shells 2, 3 and can be reused several times since it is not destroyed when the two housing shells are removed.
  • the housing 1 shown in the first exemplary embodiment can be particularly advantageous in electrical machines, in particular in electrical motors, such as Small motors for components of motor vehicles are used.
  • the strain relief 4 integrally formed in the first housing shell 2 can form part of the outer wall of the housing 1. It should be noted that although the first housing shell 2 has a cover-like shape, the housing shell 2 can also have a different shape.
  • a housing 1 according to a second exemplary embodiment of the present invention is described below with reference to FIGS. 4 to 5.
  • the same or functionally the same parts are designated with the same reference numerals as in the first exemplary embodiment.
  • the strain relief 4 is integrally formed on the first housing shell 2 in the first exemplary embodiment.
  • the strain relief 4 again comprises a first jaw 5 and a second jaw 6. Between these two clamping jaws 5, 6, a gap 11 is formed. The distance between the two jaws 5, 6 is larger than the diameter of the line 10.
  • the first jaw 5 is on a first level Ei and the second jaw 6 is on one second level E 2 arranged.
  • the two levels Ex and E are arranged parallel to each other by an offset V (see FIG. 5).
  • the recess 7 comes into contact with the first clamping jaw 5 and presses it downwards.
  • the webs 12 formed on the two sides of the first jaw 5 are elastically bent, so that the first jaw 5 presses the two lines 10 somewhat downward (cf. FIG. 5).
  • the two housing shells 2 and 3 are completely connected to one another, this results in a slightly S-shaped course for the line 10 (cf. FIG. 5). This enables the line 10 to be clamped between the first clamping jaw 5 and the second clamping jaw 6.
  • the first housing shell 2 Due to the offset arrangement of the two clamping jaws 5, 6, it is also possible for the first housing shell 2 to be produced in one operation as a plastic part without a slide. Furthermore, due to the flexible design of the webs 12 of the first clamping jaw 5, the housing can also be removed again without damage, so that the strain relief 4 releases the clamping of the line 10, so that, for example, the line can be replaced. The two housing shells 2, 3 can then be reassembled, the strain relief 4 again clamping a newly inserted line 10. It should be noted that the two housings 1 shown are particularly preferably used as housings for electrical machines, such as, for example, electric motors for components in motor vehicles, for example motor cooling blowers or the like. For this purpose, the second housing shell 3 is made of metal and, in addition to its function as a housing, also has the function of a pole housing for the electric motor.
  • the present invention thus relates to a housing 1 for an electrotechnical product, which has a cable 8, 10 for an electrical connection 9.
  • the housing 1 comprises a first housing shell 2 and a second housing shell 3. Furthermore, a strain relief 4 is provided for the cable 8, 10, which is formed integrally with one of the two housing shells.
  • This housing shell 2 with integrated strain relief 4 is made of an electrically insulating material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Or Junction Boxes (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne un boîtier (1) destiné à un produit électrotechnique, comprenant un câble (8, 10) pour un raccordement électrique (9). Ce boîtier (1) comprend une première coque (2) et une seconde coque (3). Il comprend par ailleurs un élément de décharge de tension (4) pour le câble (8, 10), cet élément faisant partie intégrante de l'une des coques du boîtier. La coque (2) du boîtier dans laquelle est intégré cet élément de décharge de tension (4) est constituée d'un matériau électriquement isolant.
EP03704220A 2002-02-09 2003-01-17 Boitier avec element de decharge de tension integre Withdrawn EP1476924A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10205414A DE10205414A1 (de) 2002-02-09 2002-02-09 Gehäuse mit integrierter Zugentlastung
DE10205414 2002-02-09
PCT/DE2003/000118 WO2003067715A1 (fr) 2002-02-09 2003-01-17 Boitier avec element de decharge de tension integre

Publications (1)

Publication Number Publication Date
EP1476924A1 true EP1476924A1 (fr) 2004-11-17

Family

ID=27588509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03704220A Withdrawn EP1476924A1 (fr) 2002-02-09 2003-01-17 Boitier avec element de decharge de tension integre

Country Status (6)

Country Link
US (1) US20070093119A1 (fr)
EP (1) EP1476924A1 (fr)
KR (1) KR20040073436A (fr)
BR (1) BR0303024A (fr)
DE (1) DE10205414A1 (fr)
WO (1) WO2003067715A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007003572U1 (de) * 2007-03-09 2008-01-17 Wincor Nixdorf International Gmbh Drucker mit USB-Anschluss
DE202008004614U1 (de) * 2008-04-03 2009-08-13 Zumtobel Lighting Gmbh Zugentlastung für Drähte
EP3182541B1 (fr) 2015-12-15 2018-11-07 OSRAM GmbH Pince de câble, par exemple pour des dispositifs d'éclairage, dispositif correspondant et procédé
DE102016219421A1 (de) 2016-10-06 2018-04-12 Zf Friedrichshafen Ag Gehäuse mit Zugentlastung für ein Kabel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155231A1 (de) * 1971-11-06 1973-05-10 Bosch Gmbh Robert Zugentlastete kabeldurchfuehrung durch eine wand bei elektrischen geraeten, insbesondere motoren
CA1170327A (fr) * 1982-04-12 1984-07-03 Robert G. Dickie Couvercle a dispositif detendeur de contraintes
US4988831A (en) * 1989-09-28 1991-01-29 Ncr Corporation Strain relief apparatus for relieving strain on a cable of an electronic device
US5202538A (en) * 1990-03-20 1993-04-13 Union Connector Co., Inc. Portable power distribution cabinet
JPH08162177A (ja) * 1994-12-05 1996-06-21 Yazaki Corp 圧接コネクタへの電線圧接方法及び圧接コネクタ
JP3502542B2 (ja) * 1998-04-02 2004-03-02 株式会社コルグ プラグ抜止装置
JP3847541B2 (ja) * 2000-09-05 2006-11-22 矢崎総業株式会社 ランプユニットの取付構造
JP3790958B2 (ja) * 2001-10-12 2006-06-28 ミネベア株式会社 レゾルバのリード端子構造
JP2004127597A (ja) * 2002-09-30 2004-04-22 Yazaki Corp ブラケット

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03067715A1 *

Also Published As

Publication number Publication date
KR20040073436A (ko) 2004-08-19
US20070093119A1 (en) 2007-04-26
DE10205414A1 (de) 2003-08-14
BR0303024A (pt) 2004-07-13
WO2003067715A1 (fr) 2003-08-14

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