EP3442080A1 - Plug connector for a battery unit - Google Patents
Plug connector for a battery unit Download PDFInfo
- 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- Withdrawn
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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)
Abstract
Steckkupplung (100) zum elektrischen Kontaktieren eines von einer Handwerkzeug-maschine (200) umfassten elektrischer Antriebs (90) mit einer Akkueinheit (20), die von der Handwerkzeugmaschine (200) aufzunehmen ist, wobei die Steckkupplung (100) wenigstens eine mit der Handwerkzeugmaschine (200) zu verbindende elektrische Kontaktplatte (1) und wenigstens ein dazu korrespondierendes elektrisches Kontaktfederpaar (3) aufweist, wobei das Kontaktfederpaar (3) an der Akkueinheit (20) anzuordnen ist und in Aufschubrichtung (AR) auf die Kontaktplatte (1) aufzuschieben und in Abzugsrichtung (AB) von dieser abzuziehen ist, wobei die Kontaktplatte (1) und das Kontaktfederpaar (3) in kontaktiertem Zustand (ZK) eine kraftformschlüssige Rastverbindungspaarung bilden.Plug-in coupling (100) for electrically contacting an electric drive (90) encompassed by a hand-held power tool (200) with a battery unit (20) to be received by the hand-held power tool (200), the plug-in coupling (100) comprising at least one hand-held power tool (200) to be connected to electrical contact plate (1) and at least one corresponding electrical contact spring pair (3), wherein the contact spring pair (3) on the battery unit (20) is to be placed and pushed in the direction of retraction (AR) on the contact plate (1) and in the withdrawal direction (AB) is deducted from this, wherein the contact plate (1) and the contact spring pair (3) in the contacted state (ZK) form a form-locking locking connection pairing.
Description
Die vorliegende Erfindung betrifft eine Steckkupplung zum elektrischen Kontaktieren eines von einer Handwerkzeugmaschine umfassten elektrischer Antriebs mit einer Akkueinheit, die von der Handwerkzeugmaschine aufzunehmen ist. Die Steckkupplung weist wenigstens eine mit der Handwerkzeugmaschine zu verbindende elektrische Kontaktplatte und wenigstens ein dazu korrespondierendes elektrisches Kontaktfederpaar auf. Das Kontaktfederpaar ist an der Akkueinheit anzuordnen und in Aufschubrichtung auf die Kontaktplatte aufzuschieben bzw. in Abzugsrichtung von dieser abzuziehen.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.
Steckkupplungen der eingangs genannten Art sind grundsätzlich aus dem Stand der Technik bekannt.Plug-in couplings of the type mentioned are basically known from the prior art.
Es ist Aufgabe der vorliegenden Erfindung, eine Steckkupplung bereitzustellen, die eine sichere Kontaktierung zwischen Kontaktplatte und Kontaktfederpaar, insbesondere vor dem Hintergrund applikationsbedingter Vibrationen und Schwingungen, begünstigt.It is an object of the present invention to provide a plug-in coupling, which favors a secure contact between the contact plate and contact spring pair, in particular against the background of application-induced vibrations and vibrations.
Die Aufgabe wird dadurch gelöst, dass die Kontaktplatte und das Kontaktfederpaar in kontaktiertem Zustand eine kraftformschlüssige Rastverbindungspaarung bilden.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.
Die Erfindung schließt die Erkenntnis ein, dass beim Betrieb der Handwerkzeugmaschine auf die Steckkupplung neben der eigentlich zu übertragenden elektrischen Lasten in Form von Strom auch mechanische Lasten wirken. Aufgrund von applikationsbedingten Vibrationen und Schwingungen erfährt die Steckkupplung unerwünschte Beschleunigungskräfte. Diese können zu Relativbewegungen zwischen der geräteseitigen Kontaktplatte und dem akkuseitigen Kontaktfederpaar führen. Dies führt typischerweise zu erhöhtem Verschleiß der Steckkupplung, was durch Staubeintrag häufig sogar weiter beschleunigt wird. Darüber hinaus kann es durch eine unerwünschte Relativbewegung zwischen Kontaktplatte und Kontaktfederpaar zu einer Erhöhung des Übergangswiderstands der Kontaktpaarung zwischen diesen Elementen kommen, was wiederum zu einer unerwünschten thermischen Überlastung bis hin zum Abbrand führt.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.
Dadurch, dass bei der erfindungsgemäßen Steckkupplung die Kontaktplatte und das Kontaktfederpaar in kontaktiertem Zustand eine kraftformschlüssige Rastverbindungspaarung bilden, werden diese Nachteile vermieden. Dies insbesondere dadurch, dass miteinander kontaktierte Kontaktplatte und Kontaktfederpaar aufgrund der kraftformschlüssigen Rastverbindungspaarung als Einheit schwingen.Due to the fact that, in the plug-in coupling according to the invention, the contact plate and the contact spring pair in the contacted state form a force-locking latching connection pairing, these disadvantages are avoided. This particular in that with each other contacted contact plate and contact spring pair swing as a unit due to the kraftformschlüssigen locking connection pairing.
Im Gegensatz zu aus dem Stand der Technik bekannten Lösungen, beispielsweise aus der in der Druckschrift
Die erfindungsgemäße Lösung hat wiederum den Vorteil, dass ein vergleichsweise großer Toleranzausgleich in der Kontaktpaarung der Steckkupplung möglich ist, was bei aus dem Stand der Technik bekannten Steckkupplungen mit gefedertem als ganze Einheit bewegliche Kontakthalter als Halter für die Kontaktplatte nicht der Fall ist.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.
In einer bevorzugten Ausgestaltung weist die Kontaktplatte eine quer zur Aufschubrichtung verlaufende Nut auf, in die eine an dem Kontaktfederpaar ausgebildete Rastnase einrasten kann. Vorzugsweise weist das Kontaktfederpaar zwei einander gegenüberliegende Federelemente auf, an denen jeweils eine Rastnase ausgebildet ist. Vorzugsweise ist die Nut beidseitig an der Kontaktplatte ausgebildet, sodass eine jeweilige Rastnase in diese einrasten kann.In a preferred embodiment, the contact plate has a transverse to the direction of extension groove into which a detent formed on the contact spring pair can engage. Preferably, the pair of contact springs on two opposing spring elements, on each of which a locking lug is formed. Preferably, the groove is formed on both sides of the contact plate, so that a respective locking lug can engage in this.
In einer besonders bevorzugten Ausgestaltung ist die Nut als Langloch ausgebildet. Es hat sich als vorteilhaft herausgestellt, wenn das Langloch in Aufschubrichtung und/oder in Abzugsrichtung wenigstens eine Fase aufweist.In a particularly preferred embodiment, 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.
Alternativ zur Ausgestaltung der Nut als Langloch kann die Nut Teil einer Oberflächenkontur der Kontaktplatte sein. Vorzugsweise ist die Oberflächenkontur komplementär zu dem Kontaktfederpaar ausgebildet.Alternatively to the configuration of the groove as a slot, the groove may be part of a surface contour of the contact plate. Preferably, the surface contour is formed complementary to the contact spring pair.
In einer weiteren bevorzugten Ausgestaltung weist das Kontaktfederpaar einen Fügewinkel auf, der größer ist als ein Haltewinkel des Kontaktfederpaares.In a further preferred embodiment, the contact spring pair has a joining angle which is greater than a holding angle of the contact spring pair.
Es hat sich ebenfalls als vorteilhaft herausgestellt, wenn die Kontaktplatte stirnseitig eine sich vorzugsweise verjüngende Kupplungshilfe aufweist.It has also proved to be advantageous if the contact plate has a preferably tapered coupling aid on the front side.
In einer besonders bevorzugten Ausgestaltung weist das Kontaktfederpaar zwei einander gegenüberliegende elastische Doppelzungen auf. Jeder der Doppelzungen kann über zwei Zusatzfederelemente abgestützt sein, die vorzugsweise einem Spreizen der zwei einander gegenüberliegenden elastischen Doppelzungen entgegenwirkt. Die Zusatzfederelemente können Teil eines Steckergehäuses eines Kontaktsteckers sein. Vorzugsweise ist das Kontaktfederpaar Teil eines solchen Kontaktsteckers.In a particularly preferred embodiment, 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. Preferably, the contact spring pair is part of such a contact plug.
In einer besonders bevorzugten Ausgestaltung weist die Steckkupplung zwei, vorzugsweise genau zwei voneinander beabstandete Kontaktplatten auf. Alternativ oder zusätzlich kann die Steckkupplung zwei, vorzugsweise genau zwei, voneinander beabstandete Kontaktfederpaare aufweisen.In a particularly preferred embodiment, the plug-in coupling has two, preferably exactly two spaced-apart contact plates. Alternatively or additionally, the plug-in coupling may have two, preferably exactly two, spaced-apart contact spring pairs.
Die Erfindung wird ebenfalls gelöst durch eine Handwerkzeugmaschine mit einer vorbeschriebenen Steckkupplung, wobei die elektrische Kontaktplatte der Steckkupplung mit der Handwerkzeugmaschine insbesondere starr verbunden ist und das Kontaktfederpaar an einer der Handwerkzeugmaschine zugeordneten Akkueinheit angeordnet ist.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.
Weitere Vorteile ergeben sich aus der folgenden Figurenbeschreibung. In den Figuren sind verschiedene Ausführungsbeispiele der vorliegenden Erfindung dargestellt. Die Figuren, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages will become apparent from the following description of the figures. In the figures, various embodiments of the present invention are shown. The figures, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
In den Figuren sind gleiche und gleichartige Komponenten mit gleichen Bezugszeichen beziffert. Es zeigen:
- Fig. 1
- ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen Steckkupplung in getrenntem Zustand;
- Fig. 2
- das Ausführungsbeispiel der
Fig. 1 in kontaktiertem Zustand; - Fig. 3
- eine genauere Darstellung des Kontaktsteckers des Ausführungsbeispiels der
undFiguren 12 ; - Fig. 4
- ein zweites Ausführungsbeispiel einer Kontaktplatte einer erfindungsgemäßen Steckkupplung;
- Fig. 5
- ein drittes Ausführungsbeispiel einer Kontaktplatte als Teil einer erfindungsgemäßen Steckkupplung;
- Fig. 6
- einen Schnitt der Darstellung aus
Fig. 5 ; - Fig. 7
- ein viertes Ausführungsbeispiel eines Kontaktsteckers einer erfindungsgemäßen Steckkupplung; und
- Fig. 8
- die Ansicht aus
Fig. 7 in Schnittdarstellung.
- Fig. 1
- a preferred embodiment of a plug-in coupling according to the invention in a separate state;
- Fig. 2
- the embodiment of
Fig. 1 in contacted condition; - Fig. 3
- a more detailed view of the contact plug of the embodiment of
FIGS. 1 and2 ; - Fig. 4
- a second embodiment of a contact plate of a plug-in coupling according to the invention;
- Fig. 5
- a third embodiment of a contact plate as part of a plug-in coupling according to the invention;
- Fig. 6
- a section of the presentation
Fig. 5 ; - Fig. 7
- A fourth embodiment of a contact plug of a plug-in coupling according to the invention; and
- Fig. 8
- the view
Fig. 7 in section.
Ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen Steckkupplung 100 ist in
Die Steckkupplung 100 weist wenigstens eine mit der Handwerkzeugmaschine 200 zu verbindende und vorliegend auch verbundene Kontaktplatte 1 und wenigstens ein dazu korrespondierendes elektrisches Kontaktfederpaar 3 auf. Das Kontaktfederpaar 3 ist an der Akkueinheit 20 anzuordnen und vorliegend auch angeordnet.The plug-in
Das Kontaktfederpaar 3 ist in Aufschubrichtung AR auf die Kontaktplatte 1 aufzuschieben, in Abzugsrichtung AB von der Kontaktplatte 1 abzuziehen.The
Das Kontaktfederpaar 3 ist Teil eines Kontaktsteckers 3, der seinerseits ein Steckergehäuse 35 aufweist, welches das Kontaktfederpaar 3 zumindest abschnittsweise umschließt.The
Erfindungsgemäß sind die Kontaktplatte 1 und das Kontaktfederpaar 3 derart ausgebildet, dass sie in kontaktiertem Zustand ZK (vgl.
Im vorliegend dargestellten Ausführungsbeispiel wird dies dadurch erreicht, dass die Kontaktplatte 1 eine quer zur Aufschubrichtung AR verlaufende Nut, die vorliegend als Langloch 5 ausgebildet ist, aufweist, in die an dem Kontaktfederpaar 3 ausgebildete Rastnasen 7, 7' einrasten können.In the present embodiment, this is achieved in that the
Um ein Aufschieben des Kontaktfederpaars 3 auf die Kontaktplatte 1 zu erleichtern, weist die Kontaktplatte 1 stirnseitig eine sich in Abzugsrichtung verjüngende Kupplungshilfe 4 auf. Wie ebenfalls der
Wie der
Trotz der Tatsache, dass im gezeigten Ausführungsbeispiel der Fügewinkel FW größer ist als der Haltewinkel HW, ist ein vergleichsweise einfaches Aufschieben des Kontaktfederpaars 3 auf die Kontaktplatte 1 möglich, da diese (vgl.
Gut zu erkennen in
Alternativ zu der Ausgestaltung der Nut 5 als Langloch (vgl.
Auch in diesem Ausführungsbeispiel weist die Kontaktplatte 1 eine stirnseitig an sich Abzugsrichtung AB verjüngende Kupplungshilfe 4 auf.In this embodiment as well, the
Ein weiteres Ausführungsbeispiel einer Kontaktplatte 1 ist in
Eingezeichnet in
Die zwei Zusatzfederelemente 15, 15' sind einteilig mit dem Steckergehäuse 35 ausgebildet. Eingepresst in das Steckergehäuse 35 ist zumindest ein Abschnitt des Kontaktfederpaares 3.The two
- 11
- Kontaktplattecontact plate
- 22
- Oberflächenkontursurface contour
- 33
- KontaktfedernpaarContact spring pair
- 44
- Kupplungshilfecoupling aid
- 55
- Nutgroove
- 7, 7'7, 7 '
- Rastnaselocking lug
- 9, 9'9, 9 '
- Fasechamfer
- 13, 13'13, 13 '
- Doppelzungedouble tongue
- 15, 15'15, 15 '
- ZusatzfederelementeAdditional spring elements
- 2020
- Akkueinheitbattery unit
- 3030
- Kontaktsteckercontact plug
- 3535
- Steckergehäuseplug housing
- 9090
- elektrischer Antriebelectric drive
- 100100
- Steckkupplungplug-in coupling
- 200200
- HandwerkzeugmaschineHand tool
- ARAR
- Aufschubrichtungpush-on direction
- ABFROM
- Abzugsrichtungwithdrawal direction
- FWFW
- FügewinkelInclude angle
- HWHW
- Haltewinkelbracket
- ZKZK
- kontaktierter Zustandcontacted condition
- DKDK
- getrennter Zustandseparate condition
Claims (11)
dadurch gekennzeichnet, dass Kontaktplatte (1) und das Kontaktfederpaar (3) in kontaktiertem Zustand (ZK) eine kraftformschlüssige Rastverbindungspaarung bilden.Plug-in coupling (100) for electrically contacting an electric drive (90) encompassed by a hand-held power tool (200) with a battery unit (20) to be received by the hand-held power tool (200), the plug-in coupling (100) comprising at least one hand-held power tool (200 ) to be connected to the electrical contact plate (1) and at least one corresponding electrical contact spring pair (3), wherein the contact spring pair (3) on the battery unit (20) is to be arranged and pushed in the direction of retraction (AR) on the contact plate (1) and in the withdrawal direction (AB) is deducted from this,
characterized in that the contact plate (1) and the contact spring pair (3) in the contacted state (ZK) form a frictionally engaged locking connection pairing.
dadurch gekennzeichnet, dass die Kontaktplatte (1) eine quer zur Aufschubrichtung (AR) verlaufende Nut (5) aufweist in die einer an dem Kontaktfederpaar (3) ausgebildete Rastnase (7) einrasten kann.Plug-in coupling (100) according to claim 1,
characterized in that the contact plate (1) has a transverse to the direction of retraction (AR) extending groove (5) into which one of the contact spring pair (3) formed latching lug (7) can engage.
dadurch gekennzeichnet, dass die Nut (5) als Langloch ausgebildet ist.Plug-in coupling (100) according to claim 2,
characterized in that the groove (5) is formed as a slot.
dadurch gekennzeichnet, dass das am Langloch in Aufschubrichtung (AR) und/oder in Abzugsrichtung (AB) wenigsten eine Fase (9) ausgebildet ist.Plug-in coupling (100) according to claim 3,
characterized in that at the slot in the direction of retraction (AR) and / or in the withdrawal direction (AB) at least one chamfer (9) is formed.
dadurch gekennzeichnet, dass die Nut (5) Teil einer Oberflächenkontur (2) der Kontaktplatte (1) ist, wobei die Oberflächenkontur (2) komplementär zu dem Kontaktfederpaar (3) ausgebildet ist.Plug-in coupling (100) according to claim 2,
characterized in that the groove (5) is part of a surface contour (2) of the contact plate (1), wherein the surface contour (2) is complementary to the contact spring pair (3).
dadurch gekennzeichnet, dass das Kontaktfederpaar (3) einen Fügewinkel (FW) aufweist, der größer ist, als ein Haltewinkel (HW) des Kontaktfederpaares (3).Plug-in coupling (100) according to one of the preceding claims,
characterized in that the contact spring pair (3) has a joining angle (FW) which is greater than a holding angle (HW) of the contact spring pair (3).
dadurch gekennzeichnet, dass die Kontaktplatte (1) stirnseitig eine sich vorzugsweise verjüngende Kupplungshilfe (4) aufweist.Plug-in coupling (100) according to one of the preceding claims,
characterized in that the contact plate (1) frontally has a preferably tapered coupling aid (4).
dadurch gekennzeichnet, dass das Kontaktfederpaar (3) zwei einander gegenüberliegende elastische Doppelzungen (13, 13') aufweist.Plug-in coupling (100) according to one of the preceding claims,
characterized in that the contact spring pair (3) has two mutually opposite elastic double tongues (13, 13 ').
dadurch gekennzeichnet, dass jede der Doppelzungen (13, 13') über zwei Zusatzfederelemente (15, 15') abgestützt ist, die einem Spreizen der zwei einander gegenüberliegenden elastischen Doppelzungen (13, 13') entgegenwirkt.Plug-in coupling (100) according to claim 8,
characterized in that each of the double tongues (13, 13 ') via two additional spring elements (15, 15') is supported, which counteracts a spreading of the two opposite elastic double tongues (13, 13 ').
dadurch gekennzeichnet, dass die Steckkupplung (100) zwei voneinander beabstandete Kontaktplatten und/oder zwei voneinander beabstandete Kontaktfederpaare aufweist.Plug-in coupling (100) according to one of the preceding claims,
characterized in that the plug-in coupling (100) has two spaced-apart contact plates and / or two spaced contact spring pairs.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17185504.2A EP3442080A1 (en) | 2017-08-09 | 2017-08-09 | Plug connector for a battery unit |
PCT/EP2018/071115 WO2019030135A1 (en) | 2017-08-09 | 2018-08-03 | Plug-in coupling for a battery unit |
EP18745990.4A EP3665746A1 (en) | 2017-08-09 | 2018-08-03 | Plug-in coupling for a battery unit |
US16/636,252 US11005206B2 (en) | 2017-08-09 | 2018-08-03 | Plug-in coupling for a battery unit |
CN201880052081.6A CN111033900B (en) | 2017-08-09 | 2018-08-03 | Plug-in connection for battery cells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17185504.2A EP3442080A1 (en) | 2017-08-09 | 2017-08-09 | Plug connector for a battery unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3442080A1 true EP3442080A1 (en) | 2019-02-13 |
Family
ID=59699479
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17185504.2A Withdrawn EP3442080A1 (en) | 2017-08-09 | 2017-08-09 | Plug connector for a battery unit |
EP18745990.4A Withdrawn EP3665746A1 (en) | 2017-08-09 | 2018-08-03 | Plug-in coupling for a battery unit |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18745990.4A Withdrawn EP3665746A1 (en) | 2017-08-09 | 2018-08-03 | Plug-in coupling for a battery unit |
Country Status (4)
Country | Link |
---|---|
US (1) | US11005206B2 (en) |
EP (2) | EP3442080A1 (en) |
CN (1) | CN111033900B (en) |
WO (1) | WO2019030135A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI749816B (en) * | 2020-10-16 | 2021-12-11 | 朝程工業股份有限公司 | Male and female terminals and adapters for electric tools |
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Also Published As
Publication number | Publication date |
---|---|
CN111033900B (en) | 2022-06-24 |
US11005206B2 (en) | 2021-05-11 |
CN111033900A (en) | 2020-04-17 |
EP3665746A1 (en) | 2020-06-17 |
US20200373698A1 (en) | 2020-11-26 |
WO2019030135A1 (en) | 2019-02-14 |
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