EP3442080A1 - Raccord à emboîtement pour une unité d'accumulateur - Google Patents

Raccord à emboîtement pour une unité d'accumulateur Download PDF

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Publication number
EP3442080A1
EP3442080A1 EP17185504.2A EP17185504A EP3442080A1 EP 3442080 A1 EP3442080 A1 EP 3442080A1 EP 17185504 A EP17185504 A EP 17185504A EP 3442080 A1 EP3442080 A1 EP 3442080A1
Authority
EP
European Patent Office
Prior art keywords
plug
coupling
contact
contact spring
spring pair
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Withdrawn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
EP17185504.2A
Other languages
German (de)
English (en)
Inventor
Markus Holubarsch
Johannes Stempfhuber
Ralf Meixner
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
Priority to EP17185504.2A priority Critical patent/EP3442080A1/fr
Priority to PCT/EP2018/071115 priority patent/WO2019030135A1/fr
Priority to EP18745990.4A priority patent/EP3665746A1/fr
Priority to US16/636,252 priority patent/US11005206B2/en
Priority to CN201880052081.6A priority patent/CN111033900B/zh
Publication of EP3442080A1 publication Critical patent/EP3442080A1/fr
Withdrawn legal-status Critical Current

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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
    • H01R13/10—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • 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
    • H01R13/04—Pins or blades for co-operation with sockets
    • 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
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • 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
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together

Definitions

  • the present invention relates to a plug-in coupling for electrically contacting an electric drive comprised by a hand-held power tool with a battery unit which is to be received by the hand-held power tool.
  • the plug-in coupling has at least one to be connected to the power tool electrical contact plate and at least one corresponding thereto electrical contact spring pair.
  • the contact spring pair is to be arranged on the battery unit and postponed in the direction of loading on the contact plate or deducted in the withdrawal direction of this.
  • Plug-in couplings of the type mentioned are basically known from the prior art.
  • the object is achieved in that the contact plate and the contact spring pair in the contacted state form a frictionally engaged locking connection pairing.
  • the invention includes the recognition that act in the form of electricity and mechanical loads during operation of the power tool on the plug-in coupling in addition to the actually to be transmitted electrical loads. Due to application-related vibrations and vibrations, the plug-in coupling experiences undesirable acceleration forces. These can lead to relative movements between the device-side contact plate and the battery-side contact spring pair. This typically leads to increased wear of the plug-in coupling, which is often even further accelerated by dust entry. In addition, an unwanted relative movement between the contact plate and the contact spring pair can lead to an increase in the contact resistance of the contact pairing between these elements, which in turn leads to an undesired thermal overload up to the point of erosion.
  • the contact plate of the plug-in coupling according to the invention is preferably arranged rigidly with respect to the handheld power tool or a housing of the power tool.
  • the solution according to the invention in turn has the advantage that a comparatively large tolerance compensation in the contact pairing of the plug-in coupling is possible, which is not the case in known from the prior art plug-in with spring-loaded as a whole unit contact holder as a holder for the contact plate.
  • the contact plate has a transverse to the direction of extension groove into which a detent formed on the contact spring pair can engage.
  • the groove is formed on both sides of the contact plate, so that a respective locking lug can engage in this.
  • the groove is formed as a slot. It has proven to be advantageous if the elongated hole has at least one chamfer in the push-on direction and / or in the withdrawal direction.
  • the groove may be part of a surface contour of the contact plate.
  • the surface contour is formed complementary to the contact spring pair.
  • the contact spring pair has a joining angle which is greater than a holding angle of the contact spring pair.
  • the contact plate has a preferably tapered coupling aid on the front side.
  • the contact spring pair has two mutually opposite elastic double tongues.
  • Each of the double tongues can be supported by means of two additional spring elements, which preferably counteract a spreading of the two opposite elastic double tongues.
  • the additional spring elements may be part of a plug housing of a contact plug.
  • the contact spring pair is part of such a contact plug.
  • the plug-in coupling has two, preferably exactly two spaced-apart contact plates.
  • the plug-in coupling may have two, preferably exactly two, spaced-apart contact spring pairs.
  • the invention is likewise achieved by a hand tool with a plug-in coupling as described above, wherein the electrical contact plate of the plug-in coupling is in particular rigidly connected to the handheld power tool and the contact spring pair is arranged on a battery unit assigned to the handheld power tool.
  • FIG Fig. 1 A preferred embodiment of a plug-in coupling 100 according to the invention is shown in FIG Fig. 1 shown.
  • the plug-in coupling 100 is used for electrically contacting an electric drive 90 encompassed by a handheld power tool 200 with a rechargeable battery unit that is to be received by the handheld power tool 200.
  • the hand tool 200, the electric drive 90 and the battery unit 20 are in Fig. 1 only shown schematically.
  • the plug-in coupling 100 has at least one contact plate 1 to be connected to the handheld power tool 200 and in the present case also connected, and at least one electrical contact spring pair 3 corresponding thereto.
  • the contact spring pair 3 is to be arranged on the battery unit 20 and in the present case also arranged.
  • the contact spring pair 3 is postpone in the direction of retraction AR on the contact plate 1, deducted in the withdrawal direction AB of the contact plate 1.
  • the contact spring pair 3 is part of a contact plug 3, which in turn has a plug housing 35 which surrounds the contact spring pair 3 at least in sections.
  • Fig. 1 shows the separate state DK, in which the contact spring pair 3 electrical contact plate 1 are separated from each other.
  • the contact plate 1 and the contact spring pair 3 are designed such that they are in the contacted state ZK (cf. Fig. 2 ) form a frictional locking connection pairing.
  • the contact plate 1 has a transverse to the direction of retraction AR extending groove, which is presently formed as a slot 5, in which on the contact spring pair 3 formed locking lugs 7, 7 'can engage.
  • the contact plate 1 on the front side a tapering in the withdrawal direction coupling aid 4.
  • the contact spring pair 3 has two mutually opposite elastic double tongues 13, 13 '.
  • Other embodiments of the contact spring pair 3 are possible.
  • Fig. 2 now shows the plug-in 100 of the Fig. 1 in contacted state ZK.
  • the contact plate 1 and the contact spring pair 3 form a frictionally locking connection.
  • formed on the contact spring pair 3 locking lugs 7, 7 'on both sides in the slot formed as a slot 5 of the Contact plate 1 snapped.
  • Fig. 3 now shows a contact plug 30, which includes the contact spring pair 3, in plan view. Good to see the opposite elastic double tongues 13, 13 ', on each of which the locking lug 7, 7' is formed.
  • the formation of the latching lugs 7, 7 ' can be provided for example by cold forming (sheet metal deformation).
  • a joining angle FW of the contact spring pair 3 is greater than a holding angle HW of the contact spring pair 3.
  • the joining angle FW is preferably between 30 and 50 degrees, more preferably between 35 and 45 degrees.
  • the joining angle FW is greater than the holding angle HW, a comparatively simple sliding of the contact spring pair 3 on the contact plate 1 is possible because these (see. Fig. 1 ) has a frontally arranged coupling aid.
  • each of the double tongues 13, 13 'via two additional spring elements 15, 15' is supported.
  • the additional spring elements 15, 15 ' counteract a spreading, in particular an overstretching of the two opposite elastic double tongues 13, 13'.
  • the additional spring elements 15, 15 ' can be formed in one piece with a plug housing 35 of the contact plug 30.
  • the contact spring pair 3 is in turn pressed on a latching lugs 7, 7 'side facing away from inside the plug housing 35.
  • Fig. 4 shows a further embodiment of a contact plate 1 of a plug-in coupling according to the invention.
  • the contact plate 1 has a transverse, more precisely perpendicular, extending to the direction of retraction AR groove 5, in which formed on the contact spring pair 3 locking lugs 7, 7 '(see. Fig. 3 ) can engage, so as to form a frictional engagement mating connection pairing.
  • the groove 5 As an alternative to the configuration of the groove 5 as a slot (see. Fig. 1 ), is in the embodiment of Fig. 4 the groove 5 part of a surface contour 2 of the contact plate 1, wherein the surface contour 2 is formed complementary to the contact spring pair 3.
  • the contact plate 1 has a coupling aid 4 which tapers on the face side in the withdrawal direction AB.
  • FIG Fig. 5 Another embodiment of a contact plate 1 is shown in FIG Fig. 5 shown.
  • the contact plate 1 has a transverse to the direction of retraction AR extending groove 5, which is formed here as a slot.
  • a chamfer 9, 9 ' is formed to facilitate pushing on or removing a contact plug on the contact plate 1 and of the contact plate 1.
  • Fig. 5 Marked in Fig. 5 is a section plane AA whose section AA in Fig. 6 is shown. Especially good to see in Fig. 6 is that in the extension direction AR and in the withdrawal direction AB provided chamfers 9, 9 'are formed on both sides of the contact plate 1 on the groove formed as a slot 5.
  • Fig. 7 now shows a perspective view of the contact plug 30 of Fig. 3 with marked section plane BB. Good to see the two additional spring elements 15, 15 ', which serve the support of the opposite elastic double tongues 13, 13'.
  • the two additional spring elements 15, 15 ' are integrally formed with the plug housing 35. Pressed into the plug housing 35 is at least a portion of the contact spring pair 3rd
  • Fig. 8 finally shows the section BB through the contact plug 30 of Fig. 7 , Again Fig. 8 can be removed, a detent lugs 7, 7 'facing away from section of the contact spring pair nestles parallel within the plug housing 35 to this. Incidentally, in Fig. 8 good to see that the additional spring elements 15, 15 'on the other hand, the contact spring pair 3 in the region of the locking lugs 7, 7' touch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP17185504.2A 2017-08-09 2017-08-09 Raccord à emboîtement pour une unité d'accumulateur Withdrawn EP3442080A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17185504.2A EP3442080A1 (fr) 2017-08-09 2017-08-09 Raccord à emboîtement pour une unité d'accumulateur
PCT/EP2018/071115 WO2019030135A1 (fr) 2017-08-09 2018-08-03 Accouplement par enfichage pour unité de batterie
EP18745990.4A EP3665746A1 (fr) 2017-08-09 2018-08-03 Accouplement par enfichage pour unité de batterie
US16/636,252 US11005206B2 (en) 2017-08-09 2018-08-03 Plug-in coupling for a battery unit
CN201880052081.6A CN111033900B (zh) 2017-08-09 2018-08-03 用于电池单元的插接联接装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17185504.2A EP3442080A1 (fr) 2017-08-09 2017-08-09 Raccord à emboîtement pour une unité d'accumulateur

Publications (1)

Publication Number Publication Date
EP3442080A1 true EP3442080A1 (fr) 2019-02-13

Family

ID=59699479

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17185504.2A Withdrawn EP3442080A1 (fr) 2017-08-09 2017-08-09 Raccord à emboîtement pour une unité d'accumulateur
EP18745990.4A Withdrawn EP3665746A1 (fr) 2017-08-09 2018-08-03 Accouplement par enfichage pour unité de batterie

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18745990.4A Withdrawn EP3665746A1 (fr) 2017-08-09 2018-08-03 Accouplement par enfichage pour unité de batterie

Country Status (4)

Country Link
US (1) US11005206B2 (fr)
EP (2) EP3442080A1 (fr)
CN (1) CN111033900B (fr)
WO (1) WO2019030135A1 (fr)

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TWI749816B (zh) * 2020-10-16 2021-12-11 朝程工業股份有限公司 用於電動工具之公母合一端子及轉接器
US20230126709A1 (en) * 2021-10-27 2023-04-27 Illinois Tool Works Inc. Flexible substrate terminal

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CN201430275Y (zh) * 2008-12-15 2010-03-24 富士康(昆山)电脑接插件有限公司 电连接器及电连接器组合
DE102011103781A1 (de) * 2010-06-10 2012-01-19 Lear Corporation Leistungsanschluss
DE102011087414A1 (de) * 2011-01-20 2012-07-26 Mitsubishi Electric Corp. Leistungshalbleitervorrichtung, gedruckte Leiterplatte und Mechanismus zum Verbinden der Leistungshalbleitervorrichtung und der gedruckten Leiterplatte
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JP2016201301A (ja) * 2015-04-13 2016-12-01 パナソニックＩｐマネジメント株式会社 刃受け金具、及び、差込接続器

Also Published As

Publication number Publication date
CN111033900B (zh) 2022-06-24
CN111033900A (zh) 2020-04-17
WO2019030135A1 (fr) 2019-02-14
US11005206B2 (en) 2021-05-11
US20200373698A1 (en) 2020-11-26
EP3665746A1 (fr) 2020-06-17

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