EP3669426A1 - Couplage par enfichage pour unité de batterie - Google Patents

Couplage par enfichage pour unité de batterie

Info

Publication number
EP3669426A1
EP3669426A1 EP18746978.8A EP18746978A EP3669426A1 EP 3669426 A1 EP3669426 A1 EP 3669426A1 EP 18746978 A EP18746978 A EP 18746978A EP 3669426 A1 EP3669426 A1 EP 3669426A1
Authority
EP
European Patent Office
Prior art keywords
contact
plug
coupling
legs
battery unit
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Withdrawn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
EP18746978.8A
Other languages
German (de)
English (en)
Inventor
Ralf Meixner
Markus Holubarsch
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP3669426A1 publication Critical patent/EP3669426A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section

Definitions

  • the present invention relates to a plug-in coupling for electrically contacting an electric motor comprising a hand-held power tool with a battery unit.
  • the battery unit is to be picked up by a hand tool.
  • the plug-in coupling has at least one electric contact blade to be connected to the power tool and a corresponding contact plug with two opposing resilient contact legs.
  • the contact plug is to be arranged on the battery unit and postponed in the direction of loading on the contact blade and deduct in the withdrawal direction of this.
  • Each of the resilient contact legs has a contact region which electrically contacts a respective side of the contact blade in the contacted state.
  • Plug-in couplings of the type mentioned are basically known from the prior art.
  • the object is achieved in that the contact areas in the uncontacted state, based on a deflection of the resilient contact legs, are spaced from each other.
  • the resulting insertion forces can be kept low when inserting a battery unit, and yet sufficiently high contact forces can be achieved in the connected state, which allows the desired stable power transmission under application-related loads.
  • the invention includes the realization that the current carrying capacity of a plug-in coupling in real operation can be increased by the technical design of the contact pairing.
  • the resulting contact normal force in the plugged (contacted) state and the material thickness of the contact blade are relatively high normal force and a high material thickness of the contact blade lead.
  • the contact areas in the uncontacted state are spaced apart, whereby a high current carrying capacity of the plug-in coupling is achieved at relatively low insertion forces.
  • a distance of the contact regions from one another parallel to the deflection direction of the resilient contact limbs amounts to 10 to 40 percent of the thickness of the contact blade. In this area, with sufficiently low resulting insertion forces, a sufficiently high contact force was achieved, which enables a stable power transmission.
  • the defined distance of the contact areas to each other is 0.3 millimeters.
  • the defined distance, in the uncontacted state can be between 0.2 millimeters and 0.4 millimeters.
  • the contact blade preferably has a thickness of between 0.75 millimeters and 3 millimeters. The thickness of the contact blade is defined parallel to the deflection of the resilient contact legs.
  • the contact legs have a joining angle which is greater than a holding angle of the contact legs.
  • joining angle and holding angle! the contact leg be the same.
  • each of the contact legs on a resilient double tongue can be supported by two additional spring elements, which counteracts a spreading of the two opposite elastic double tongues.
  • the contact areas are formed linear.
  • the contact areas may extend both perpendicular to the push-on and perpendicular to the deflection.
  • the plug-in coupling on two spaced contact blades and / or two spaced-apart contact plug Preferably, the plug-in coupling on two spaced contact blades and / or two spaced-apart contact plug.
  • the contact plug is provided as a stamped part.
  • the invention is also achieved by a hand tool with a pre-described plug-in coupling, wherein the electrical contact blade of the plug-in coupling with the hand tool is connected and the contact plug is arranged on one of the hand tool machine associated battery unit.
  • Fig. 1 shows a preferred embodiment of a plug-in coupling according to the invention in the contacted state
  • Fig. 3 is a more detailed view of the contact plug of Fig. 1;
  • FIG. 4 different views of another embodiment of a contact plug.
  • FIG. 1 shows a plan view of the plug-in coupling 100, that is, a deflection direction AL of the resilient contact legs 3, 3 'protrudes from the image plane.
  • the plug-in coupling 100 has an electrical contact blade 1, which is associated with an electric hand tool 200 (see Fig. 2).
  • the contact blade 1 has a planar design (compare Fig. 1a) and has a thickness M (see Fig. B), which is parallel to the deflection direction AL of the resilient contact legs 3, 3 'defined.
  • the resilient contact leg 3 is provided in the form of a double tongue 13. This double tongue 13 is pressed into a connector housing 35 of the contact plug 30.
  • Fig. 1 b which shows a section A-A along the section line A-A shown in Fig. 1a
  • the contact areas 7, 7 of the respective contact leg 3, 3 ' are clearly visible.
  • the contact plug 30 is contacted electrically with the contact blade 1 via the contact regions 7, 7 '.
  • the contact regions 7, T contact a respective side of the contact blade 1 electrically in the shown contacted state ZK.
  • FIG. 2 shows a preferred exemplary embodiment of a plug-in coupling 100 for electrically contacting an electric motor 90 encompassed by a handheld power tool 200 with a rechargeable battery unit 20 that is to be picked up by the handheld power tool 200.
  • the plug-in coupling 100 has at least one electric contact blade 1 connected to the portable power tool 200 and a contact plug 30 corresponding thereto.
  • the contact plug 30 has two opposing resilient contact legs 3, 3 '.
  • the contact plug 30 is arranged on the battery unit 20.
  • the contact plug 30 can be pushed onto the contact blade 1 and be deducted accordingly in the withdrawal direction AB from the contact blade 1.
  • the contact regions 7, T are spaced apart relative to a deflection direction AL of the resilient contact legs 3, 3 '.
  • the distance X is by way of example 0.3 millimeters.
  • the contact regions 7, 7 ' viewed parallel to the deflection AL, are the points or regions of the contact legs 3, 3 "closest to one another.
  • the distance X of the contact regions 7, T is 10 percent of the thickness M of the contact blade 1.
  • the thickness M of the contact blade 1 is, for example, 3 millimeters.
  • the contact areas 7, 7 'iinienförmig formed and extend both perpendicular to the direction of retraction AR and perpendicular to the deflection AL.
  • each of the contact legs 3, 3 ' is formed by a double tongue 13, 13'.
  • Each of the double tongues 13, 13 ' is supported via two additional spring elements 15, 15' (part of the plug housing 35, cf. FIG. 3).
  • This additional spring elements 15, 15 ' is a spreading of the two opposite elastic double tongues 13, 13' counteracted.
  • the contact areas 7, 7 ' are spaced apart both in the contacted state ZK (see Fig. 1) and in the non-contacted state DK (see Fig. 2).
  • the distance of the contact regions 7, 7 ' is in the contacted state ZK the same size as the thickness M of the contact blade 1.
  • In uncontacted state DK is a distance X of the contact areas 7, T between 10 to 40 percent of the thickness M of the contact blade 1, in preferred embodiment about 10 percent.
  • Fig. 3 shows the contact plug 30 in side view. It can be clearly seen that the contact legs 3, 3 'have a joining angle FW which is, for example, the same size as a holding angle HW of the contact legs 3, 3'. In the present embodiment, the joining angle FW is about 39 degrees. It can also be seen from FIG. 3 that the distance X of the contact regions 7, 7 is 0.3 millimeters.
  • FIG. 4 shows a further preferred exemplary embodiment of a contact plug 30 in various views.
  • the contact plug 30 of Figures 4a to 4d is provided as a stamped part, wherein the contact legs 3, 3 'are pressed into a plug housing 35 of the contact plug 30.
  • the additional spring elements 15, 15 'already described are formed integrally with the plug housing 35.
  • a joining angle FW that is, the effective angle when plugging in the direction of retraction AR, greater than a holding angle HW of the contact legs 3, 3 "The holding angle HW is effective when the Contact plug 30 is deducted from a contact blade, not shown here in the withdrawal direction AB.
  • the contact regions 7, 7 'in the uncontacted state DK, relative to the deflection direction AL of the resilient contact legs 3, 3', are spaced apart from one another by a defined distance X.
  • 4d shows a cross section through the contact regions 7, 7 ', that is to say a section through the contact legs 3, 3' in the region of their closest approach.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un couplage par enfichage destiné à établir le contact électrique entre un moteur électrique d'une machine-outil à main et une unité de batterie qui doit être logée dans la machine-outil à main. Le couplage par enfichage comporte au moins une lame de contact électrique devant être reliée à la machine-outil à main et un connecteur à contact, correspondant à la lame, qui comporte deux branches de contact élastiques opposées. Le connecteur de contact doit être disposé au niveau de l'unité de batterie et doit coulisser dans la direction de mise en place sur la lame de contact et est retiré de celle-ci dans la direction de retrait et chacune des branches de contact élastiques comporte une région de contact qui, à l'état contacté, est en contact électrique avec un côté respectif de la lame de contact. Les régions de contact sont espacées les unes des autres, à l'état non contacté, par rapport à une déviation des branches de contact élastiques.
EP18746978.8A 2017-08-18 2018-08-08 Couplage par enfichage pour unité de batterie Withdrawn EP3669426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17186786.4A EP3444905A1 (fr) 2017-08-18 2017-08-18 Raccord à emboîtement pour une unité d'accumulateur
PCT/EP2018/071455 WO2019034487A1 (fr) 2017-08-18 2018-08-08 Couplage par enfichage pour unité de batterie

Publications (1)

Publication Number Publication Date
EP3669426A1 true EP3669426A1 (fr) 2020-06-24

Family

ID=59655947

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17186786.4A Withdrawn EP3444905A1 (fr) 2017-08-18 2017-08-18 Raccord à emboîtement pour une unité d'accumulateur
EP18746978.8A Withdrawn EP3669426A1 (fr) 2017-08-18 2018-08-08 Couplage par enfichage pour unité de batterie

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17186786.4A Withdrawn EP3444905A1 (fr) 2017-08-18 2017-08-18 Raccord à emboîtement pour une unité d'accumulateur

Country Status (5)

Country Link
US (1) US20200366021A1 (fr)
EP (2) EP3444905A1 (fr)
JP (1) JP2020528659A (fr)
CN (1) CN111033901B (fr)
WO (1) WO2019034487A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117192A1 (de) 2020-06-30 2021-12-30 Audi Aktiengesellschaft Fahrzeugkarosserie mit einer Befestigungsvorrichtung zum Anbringen einer Antriebsbatterie sowie Verfahren zum Anbringen einer Antriebsbatterie mittels einer Befestigungsvorrichtung an einer Fahrzeugkarosserie eines Kraftfahrzeugs
WO2022181620A1 (fr) * 2021-02-25 2022-09-01 本田技研工業株式会社 Paire de connecteurs
US20240079810A1 (en) * 2022-09-02 2024-03-07 J.S.T. Corporation Terminal spring spacer, and a female terminal utilizing said spring spacer

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514573A1 (fr) * 1981-10-12 1983-04-15 Labinal Element femelle de contacts electriques pour organes males de contacts meplats
DE8811020U1 (de) * 1988-08-31 1988-10-20 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Federarmkontakt mit Außenüberfeder
DE8913569U1 (de) * 1989-11-16 1991-03-21 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Elektrisches Kontaktelement mit Kontaktfederarmen
DE9211819U1 (de) * 1992-07-07 1993-11-04 Grote & Hartmann Elektrisches Kontaktelement
FR2717624B1 (fr) * 1994-03-21 1996-04-26 Cinch Connecteurs Sa Organe de contact électrique femelle.
JP3698296B2 (ja) * 1999-08-19 2005-09-21 株式会社マキタ 端子構造
DE10066273B4 (de) 1999-08-19 2006-12-14 Makita Corp., Anjo Batterieteil
JP4333715B2 (ja) * 2006-09-07 2009-09-16 日立工機株式会社 電池パック、充電器、及び電動工具
CN101286601A (zh) * 2007-04-11 2008-10-15 菲尼克斯亚太电气（南京）有限公司 用于电连接的插接装置
DE102007032992A1 (de) * 2007-07-16 2009-01-29 Dafra Kontakt Tehnologija D.O.O. Federkontakt für eine elektrische Steckverbindung und Steckverbindung
DE102008009357A1 (de) * 2008-02-14 2009-08-27 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlusseinrichtung
JP5523905B2 (ja) * 2010-04-13 2014-06-18 株式会社マキタ 端子接続構造
CN201812984U (zh) * 2010-07-22 2011-04-27 宁波佳捷电子有限公司 一种插头
JP5847559B2 (ja) * 2011-11-25 2016-01-27 三洋電機株式会社 電池パック
JP2014231132A (ja) * 2013-05-30 2014-12-11 日立工機株式会社 電気装置及び電気機器及び電池パック
EP3065227A1 (fr) * 2015-03-06 2016-09-07 HILTI Aktiengesellschaft Prise multiple sur rails
JP6581824B2 (ja) * 2015-07-06 2019-09-25 株式会社マキタ 電池パック
CN105914506B (zh) * 2016-04-14 2018-05-04 安徽江淮汽车集团股份有限公司 一种线束母端子及其卡接结构

Also Published As

Publication number Publication date
EP3444905A1 (fr) 2019-02-20
CN111033901B (zh) 2022-03-22
WO2019034487A1 (fr) 2019-02-21
CN111033901A (zh) 2020-04-17
JP2020528659A (ja) 2020-09-24
US20200366021A1 (en) 2020-11-19

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