EP3613105A1 - Federkontakt an einem akkumulator - Google Patents
Federkontakt an einem akkumulatorInfo
- Publication number
- EP3613105A1 EP3613105A1 EP18727145.7A EP18727145A EP3613105A1 EP 3613105 A1 EP3613105 A1 EP 3613105A1 EP 18727145 A EP18727145 A EP 18727145A EP 3613105 A1 EP3613105 A1 EP 3613105A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- machine tool
- contact element
- receiving
- designed
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 5
- 230000004913 activation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
- H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection
-
- 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
-
- 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
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/112—Resilient sockets forked sockets having two legs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
- H01R24/68—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall mounted on directly pluggable apparatus
Definitions
- the present invention relates to a machine tool comprising a receiving device with at least one receiving element and a power supply unit connectable to the machine tool, for example an accumulator, with a connection device, wherein the connection device contains at least one contact element, wherein the receiving device is designed to receive and hold the connection device in that the at least one receiving element and the at least one contact element for producing an electrical connection can be connected to one another.
- Wireless machine tool can be powered by a battery for power supply.
- the accumulator is removable from the machine tool to recharge this in a charging device with electric current can.
- the contact partners each consist of a first and second contact element, which are connectable to each other.
- the first electrical contact element is on the accumulator and the second contact element is arranged on the machine tool.
- the second contact element is pushed into the first contact element.
- the second contact element can also be referred to as a receiving element, since it is suitable inter alia for receiving electrical current for the machine tool.
- a high mechanical load may act in the form of acceleration forces due to application-induced vibrations or vibrations on the electrical contact elements.
- this mechanical load can also act an electrical load in the form of electrical current.
- This mechanical load can lead to relative movements between the machine tool and battery-side contact elements, whereby the contact elements wear out.
- this wear can be additionally reinforced by a dust entry between the contact elements. Due to the vibration-related relative movement between the contact elements and by a wear-related Increasing the contact resistance of the contact elements can lead to a thermal overload of the contact elements, which can lead to a burning of the contact elements.
- Object of the present invention is therefore to provide a machine tool with improved contact elements, in which wear and in particular the risk of burning of the contact elements is reduced.
- a machine tool comprising a receiving device with at least one receiving element and connectable to the machine tool energy supply unit, such as a battery with a connection device, wherein the connection device includes at least one contact element, wherein the receiving device is designed to receive the connection device and so that the at least one receiving element and the at least one contact element for producing an electrical connection can be connected to one another.
- a damping element is provided on the at least one contact element, whereby the at least one contact element in a first direction and second direction and relative to the respective receiving element is movable, so that a relative movement between the contact element and the respective receiving element is counteracted, if the contact element and receiving element are interconnected.
- the damping element is designed as a spring and is positioned in the first direction behind the contact element, so that one of the designed as a spring damping element spring force presses the contact element in the second direction.
- the damping element is designed as a component with an elastically deformable material.
- the material is an elastomer or any other suitable dimensionally stable, but elastically deformable plastics possible.
- FIG. 1 shows a side view of a machine tool according to the invention with an accumulator connected to the machine tool;
- FIG. 2 shows a further side view of the machine tool according to the invention with an accumulator removed from the machine tool;
- Fig. 3 is a sectional view taken along section line A-A in Fig. 1, with the accumulator and the machine tool separated from each other;
- Fig. 4 is a further sectional view taken along the section line B-B in Fig. 2, wherein the
- FIGS. 1 and 2 show an exemplary embodiment of the machine tool 1 according to the invention.
- the machine tool 1 is designed in the form of a drill. However, it is also possible that the machine tool 1 is a hammer drill, a circular saw or the like.
- the machine tool 1 illustrated in FIGS. 1 and 2 essentially comprises a housing 2, a tool holder 3, a handle 4 with an activation switch 5. Furthermore, the machine tool 1 contains a receiving device 6 for a power supply unit 7. As in FIGS. 1 to 4 shown, the power supply unit 7 as a rechargeable battery, also called battery configured.
- the power supply unit 7 may also be configured as a connection unit with a power cable for connection to a power grid.
- FIG. 1 shows a state in which the energy supply unit 7 configured as a battery is connected to the machine tool 1.
- the battery 7 is pushed for this purpose in the direction of arrow B on the receiving device 6.
- the battery 7 according to the direction of the arrow A (and against the direction of arrow B) again removed from the receiving device 6 and thus of the machine tool 1.
- the power supply unit 7 is held on the machine tool 1 with a closure device, not shown.
- the housing 2 has a first end 2a and a second end 2b. At a first end 2a of the housing 2, the tool holder 3 is positioned. The tool holder 3 is used for receiving and releasably holding a tool 8.
- the tool 8 shown in Figures 1 and 2 is designed in the form of a drill.
- the handle 4 includes the activation switch 5, a first end 4a and a second end 4b.
- the activation switch 5 serves to actuate the machine tool 1.
- the first end 4a of the handle 4 is attached.
- the receiving device 6 is positioned for the designed as a battery power supply unit 7. As shown in FIGS. 3 and 4, the receiving device 6 includes a first receiving element 6a and a second receiving element 6b. Alternatively, more than two receiving elements may be provided. It is possible that a receiving element contains both a plus pole and a negative pole for electrical power supply. Both the first and second receiving element 6a, 6b is designed in the form of a contact plate. Alternatively, this may be configured as a cylinder, the first and second receiving element 6a, 6b.
- the energy supply unit 7 designed as a battery essentially contains a housing 9 in which a number of individual interconnected energy storage cells, also called battery cells, are positioned. With the help of the battery cells electrical energy can be stored in the battery 7.
- the battery cells are not shown in the figures.
- connection device 9a is positioned with a first contact element 10a and a second contact element 10b.
- the connection device 9a serves to connect to the receiving device 6.
- the connection device 9a is pushed into the receiving device 6 and held by this.
- a contact element contains both a plus pole and a negative pole for the electrical power supply.
- the first contact element 10a is used for releasably connecting to the first receiving element 6a and the second contact element 10b is used for releasable connection to the second receiving element 6b (see FIGS. 3 and 4).
- the electrical energy stored in the battery cells can be conducted from the battery 7 into the receiving device 6. The electrical energy is then forwarded to electrical consumers in the machine tool 1.
- the connection unit also includes a first contact element 10a and second contact element 10b for respectively connecting and establishing an electrical connection with the first and second receiving element 6a, 6b of the receiving device 6.
- an electric motor for generating a torque is positioned in the housing 2 of the machine tool 1.
- the electric motor is thus an electrical consumer of electrical energy.
- the torque generated in the electric motor is transmitted to the tool holder 3 via an output shaft and a transmission. With the help of transmitted torque, the tool 8 is rotated.
- neither the electric motor, the output shaft nor the transmission is shown.
- the first contact element 10a includes a first contact plug 11a, a first strand 12a and a first damping element 13a.
- the second contact element 10b includes a second contact plug 11b, a second strand 12b and a second damping element 13b.
- the first contact plug 10a includes a first end 14a and a second end 15a.
- the second contact plug 1 1 b includes a first end 14 b and a second end 15 b.
- the first strand 12a is connected to the second end 15a of the first contact plug 10a and the second strand 12b is connected to the second end 15b of the second contact plug 10b.
- the strands 12a, 12b are flexible and allow movement of the contact plug 1 1a, 1 1 b in the direction of A and B. Furthermore, the strands 12a, 12b serve to transfer the electrical energy from the battery cells to the respective contact element 10a, 10b.
- first contact element 10a is located in a first contact chamber 16a and the second contact element 10b is located in a second contact chamber 16b.
- the two contact chambers 16a, 16b are configured substantially as bulges for the respective contact elements 10a, 10b and positioned next to one another at an upper end 17 of the rechargeable battery housing 9.
- Each configured as a bulge contact chamber 16a, 16b thus has an opening 18a, 18b, through which the contact plug 1 1a, 1 1 b in the contact chamber 16a, 16b are accessible.
- the two contact plugs 1 1a, 1 1 b are arranged in the respective contact chambers 16a, 16b, that the first end 14a, 14b of the respective contact plug 1 1 a, 1 1 b of the opening 18a, 18b of the contact chamber 16a, 16b facing ,
- first contact plug 1 1 a contains a first contact sheet 19 a and second contact sheet 19 b and the second contact plug 1 1 b contains a first contact sheet 20 a and second contact sheet 20 b.
- the contact blades 19a, 19b, 20a, 20b are designed to be movable or flexible, so that the first contact blade 19a, 20a can be reversibly or elastically pivoted in the direction of arrow C and the second contact blade 19b, 20b in the direction of arrow D.
- the mobility of the contact blades 19a, 19b, 20a, 20b serves to be able to receive the respective receiving elements 6a, 6b configured as contact plates, so that each contact plate rests against the first and second contact blades 19a, 19b, 20a, 20b when the battery 7 is properly seated is connected to the machine tool 1 (see Fig. 4).
- the first and second damping element 13a, 13b is designed according to the present embodiment as springs.
- each damper element 13a, 13b designed as a spring is arranged in the respective contact chamber 16a, 16b and thus to the respective contact plug 11a, 11b such that the first end 21a, 21b of the spring 13a, 13b at the second end 15a, 15b of the respective contact plug 1 1 a, 1 1 b is present.
- the second end 22a, 22b of each spring 13a, 13b abuts a rear wall 23, 24 of each contact chamber 16a, 16b.
- each spring 13a, 13b thus presses the respective contact plug 1 1 a, 1 1 b in the direction of arrow A.
- the length and nature of the respective strands 12a, 12b is chosen so that this the entire travel of the spring 13a, 13b can follow.
- the strands 12a, 12b are at least so long that they are not torn off the respective contact plug 1 1 a, 1 1 b when the contact plug 1 1 a, 1 1 b is moved over the entire distance in the direction A.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17167447.6A EP3392974A1 (de) | 2017-04-21 | 2017-04-21 | Federkontakt an einem akkumulator |
PCT/EP2018/059656 WO2018192870A1 (de) | 2017-04-21 | 2018-04-16 | Federkontakt an einem akkumulator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3613105A1 true EP3613105A1 (de) | 2020-02-26 |
EP3613105B1 EP3613105B1 (de) | 2023-06-14 |
Family
ID=58606094
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17167447.6A Withdrawn EP3392974A1 (de) | 2017-04-21 | 2017-04-21 | Federkontakt an einem akkumulator |
EP18727145.7A Active EP3613105B1 (de) | 2017-04-21 | 2018-04-16 | Federkontakt an einem akkumulator |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17167447.6A Withdrawn EP3392974A1 (de) | 2017-04-21 | 2017-04-21 | Federkontakt an einem akkumulator |
Country Status (4)
Country | Link |
---|---|
US (2) | US11289842B2 (de) |
EP (2) | EP3392974A1 (de) |
CN (1) | CN110521064A (de) |
WO (1) | WO2018192870A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3392974A1 (de) * | 2017-04-21 | 2018-10-24 | HILTI Aktiengesellschaft | Federkontakt an einem akkumulator |
EP4190501A1 (de) * | 2021-12-01 | 2023-06-07 | Hilti Aktiengesellschaft | Akkumulator mit halte- und aufnahmevorrichtung sowie gefederten anschlusselementen |
EP4190507A1 (de) * | 2021-12-01 | 2023-06-07 | Hilti Aktiengesellschaft | Akkumulator mit gefederter anschlussvorrichtung |
WO2023099653A1 (de) * | 2021-12-01 | 2023-06-08 | Hilti Aktiengesellschaft | Anschlussvorrichtung für einem akkumulator |
EP4190504A1 (de) * | 2021-12-01 | 2023-06-07 | Hilti Aktiengesellschaft | System mit einer werkzeugmaschine und einer energieversorgungsvorrichtung |
EP4190502A1 (de) * | 2021-12-01 | 2023-06-07 | Hilti Aktiengesellschaft | Gefederte kontakte in einem teilgehäuse für einen akkumulator |
Family Cites Families (38)
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US3786392A (en) * | 1972-09-20 | 1974-01-15 | Daniel J Mc | Automatic retractable ground electrical connector |
US3890030A (en) * | 1973-09-27 | 1975-06-17 | Johnny B Mcdaniel | Lack of ground indicator |
US3952239A (en) * | 1974-08-23 | 1976-04-20 | The Black And Decker Manufacturing Company | Modular cordless tools |
US3999110A (en) * | 1975-02-06 | 1976-12-21 | The Black And Decker Manufacturing Company | Battery pack and latch |
US4684192A (en) * | 1986-09-18 | 1987-08-04 | Amp Incorporated | Breakaway electrical connector |
FR2623945B1 (fr) * | 1987-11-30 | 1990-04-27 | Marechal Sepm | Prise de courant a contacts a pression |
DE3825120A1 (de) * | 1988-05-11 | 1989-11-23 | Wella Ag | Vorrichtung fuer ein elektrisches geraet |
US5248264A (en) * | 1992-05-08 | 1993-09-28 | Motorola, Inc. | Latch assembly and carrier for a portable product |
US5480318A (en) * | 1994-09-30 | 1996-01-02 | Garrison; Dale E. | Childproof electrical plug |
DE19521423B4 (de) | 1995-06-14 | 2006-08-31 | Robert Bosch Gmbh | Handwerkzeugmaschine mit batteriegespeistem Antriebsmotor und Batterie-Baueinheit für eine derartige Handwerkzeugmaschine |
JP3318185B2 (ja) * | 1996-03-14 | 2002-08-26 | 矢崎総業株式会社 | 電装モジュールの組付け構造 |
US5746617A (en) * | 1996-07-03 | 1998-05-05 | Quality Microwave Interconnects, Inc. | Self aligning coaxial connector assembly |
DE19726383A1 (de) | 1997-06-21 | 1998-12-24 | Bosch Gmbh Robert | Elektrowerkzeugmaschine |
US6304058B2 (en) * | 1998-08-13 | 2001-10-16 | Black & Decker Inc. | Cordless power tool system |
DE19911362A1 (de) * | 1999-03-15 | 2000-09-21 | Hilti Ag | Batteriebetriebenes Bohrgerät |
JP2001332358A (ja) * | 2000-05-19 | 2001-11-30 | Tokai Rika Co Ltd | コネクタ装置 |
US6313604B1 (en) * | 2000-08-01 | 2001-11-06 | Han-Liang Chen | Charging seat for a rechargeable flashlight |
JP4025557B2 (ja) * | 2001-04-18 | 2007-12-19 | 株式会社タニタ | 電池ボックス |
US6443753B1 (en) * | 2001-06-04 | 2002-09-03 | Black & Decker Inc. | Power tool cord retainer |
US6729413B2 (en) * | 2001-08-24 | 2004-05-04 | Black & Decker Inc. | Power tool with battery pack ejector |
CN2762964Y (zh) * | 2005-01-10 | 2006-03-08 | 南京德朔实业有限公司 | 用电池供电的电动工具 |
DE102005020358C5 (de) * | 2005-05-02 | 2023-05-17 | Robert Bosch Gmbh | Elektrogerät, insbesondere Elektrohandwerkzeug |
TWM289007U (en) * | 2005-10-24 | 2006-03-21 | Inventec Appliances Corp | Mobile communication device and charging cradle thereof |
JP2007245332A (ja) * | 2006-02-14 | 2007-09-27 | Honda Motor Co Ltd | 脚式移動ロボットの充電システム |
US7452230B1 (en) * | 2006-06-27 | 2008-11-18 | Tmc Enterprises, A Division Of Tasco Industries, Inc. | Electrical cord plug assembly |
US7659694B2 (en) * | 2006-10-02 | 2010-02-09 | Snap-On Incorporated | Self-aligning terminal block for battery pack |
US8152554B2 (en) * | 2007-03-14 | 2012-04-10 | Zonit Structured Solutions, Llc | Locking electrical receptacle |
DE102009012184A1 (de) * | 2009-02-27 | 2010-09-02 | Andreas Stihl Ag & Co. Kg | Tragbares, handgeführtes Elektrogerät mit einem Akkupack |
US7922529B1 (en) * | 2009-11-23 | 2011-04-12 | Neocoil, Llc | High mating cycle low insertion force coaxial connector |
JP2011217571A (ja) * | 2010-04-01 | 2011-10-27 | Sanyo Electric Co Ltd | 電池パック用充電器 |
JP2013120653A (ja) | 2011-12-06 | 2013-06-17 | Makita Corp | 端子構造 |
US11207765B2 (en) * | 2012-04-06 | 2021-12-28 | Christopher V. Beckman | Signal-carrying fasteners |
DE102012209919A1 (de) | 2012-06-13 | 2013-12-19 | Hilti Aktiengesellschaft | Handwerkzeugmaschine |
US9496648B1 (en) * | 2015-04-29 | 2016-11-15 | Hu Jian | Locking electrical socket |
JP6879797B2 (ja) * | 2017-03-30 | 2021-06-02 | 佐鳥電機株式会社 | トリガースイッチ |
EP3392974A1 (de) * | 2017-04-21 | 2018-10-24 | HILTI Aktiengesellschaft | Federkontakt an einem akkumulator |
EP3395505A1 (de) * | 2017-04-26 | 2018-10-31 | HILTI Aktiengesellschaft | Versetzte kontakte an einem akkumulator |
CN112421278A (zh) * | 2019-08-23 | 2021-02-26 | 泰科电子(上海)有限公司 | 电连接器和电连接器组件 |
-
2017
- 2017-04-21 EP EP17167447.6A patent/EP3392974A1/de not_active Withdrawn
-
2018
- 2018-04-16 EP EP18727145.7A patent/EP3613105B1/de active Active
- 2018-04-16 CN CN201880025152.3A patent/CN110521064A/zh active Pending
- 2018-04-16 US US16/606,512 patent/US11289842B2/en active Active
- 2018-04-16 WO PCT/EP2018/059656 patent/WO2018192870A1/de active Application Filing
-
2022
- 2022-02-24 US US17/680,083 patent/US11699870B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11699870B2 (en) | 2023-07-11 |
CN110521064A (zh) | 2019-11-29 |
US20200153142A1 (en) | 2020-05-14 |
EP3613105B1 (de) | 2023-06-14 |
US11289842B2 (en) | 2022-03-29 |
WO2018192870A1 (de) | 2018-10-25 |
EP3392974A1 (de) | 2018-10-24 |
US20220181813A1 (en) | 2022-06-09 |
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