DE9411808U1 - Terminal with SMD contact - Google Patents
Terminal with SMD contactInfo
- Publication number
- DE9411808U1 DE9411808U1 DE9411808U DE9411808U DE9411808U1 DE 9411808 U1 DE9411808 U1 DE 9411808U1 DE 9411808 U DE9411808 U DE 9411808U DE 9411808 U DE9411808 U DE 9411808U DE 9411808 U1 DE9411808 U1 DE 9411808U1
- Authority
- DE
- Germany
- Prior art keywords
- contact
- busbar
- circuit board
- connection terminal
- spring leg
- 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.)
- Expired - Lifetime
Links
- 238000005476 soldering Methods 0.000 claims description 15
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/515—Terminal blocks providing connections to wires or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/4846—Busbar details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/4811—Spring details
- H01R4/4816—Spring details the spring shape preventing insertion of the conductor end when the spring is unbiased
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/484—Spring housing details
- H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
- H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
Patentanwalt Dipl.-Ing. Gerd Lange D-32425 Minden/Westf.Patent Attorney Dipl.-Ing. Gerd Lange D-32425 Minden/Westf.
Anwaltsakte: 200.284Attorney file: 200,284
WAGO Verwaltungsgesellschaft mbH Hansastr. 27WAGO Verwaltungsgesellschaft mbH Hansastr. 27
32423 Minden32423 Minden
Die Erfindung betrifft eine Anschlußklemme mit einer Stromschiene, die einen SMD-Kontakt zum Verlöten mit der Oberfläche einer Leiterplatte aufweist, wobei die Leiterplatte mit der Anschlußklemme in einem gemeinsamen Isolierstoffgehäuse angeordnet ist.The invention relates to a connection terminal with a busbar, which has an SMD contact for soldering to the surface of a circuit board, wherein the circuit board with the connection terminal is arranged in a common insulating housing.
Die bekannten SMD-Kontakte (SMD = surface mounted device) werden mittels Lötstempel oder durch Impulslötung o. dgl. mit der Leiterplatte verlötet. Zu diesem Zweck muß die Lötkontaktfläche des SMD-Kontaktes unter leichtem Druck und möglichst flächig an der dafürThe well-known SMD contacts (SMD = surface mounted device) are soldered to the circuit board using a soldering stamp or by pulse soldering or similar. For this purpose, the soldering contact surface of the SMD contact must be pressed lightly and as flat as possible onto the
definierten Oberfläche der Leiterplatte anliegen.defined surface of the circuit board.
Üblicherweise sind mit ein und derselben Leiterplatte mehrere Anschlußklemmen zu verlöten, wobei die SMD-Technik voraussetzt, daß alle Anschlußklemmen immer an derselben Oberflächenseite der Leiterplatte montiert werden. Da Leiterplatten in der Regel linke und rechte äußere Zu- und Ableitungen benötigen, gibt es entsprechend unterschiedliche Anschlußklemmen mit jeweils einem rechtsverwendbaren SMD-Kontakt oder einem linksverwendbaren SMD-Kontakt. Usually, several connection terminals have to be soldered to one and the same circuit board, whereby the SMD technology requires that all connection terminals are always mounted on the same surface of the circuit board. Since circuit boards usually require left and right external supply and discharge lines, there are correspondingly different connection terminals, each with a right-hand SMD contact or a left-hand SMD contact.
Aufgabe der Erfindung ist es, eine Anschlußklemme mit einem SMD-Kontakt zu entwickeln der sowohl rechts- als auch linksverwendbar ist, wobei gewährleistet sein soll, daß der SMD-Kontakt stets lagerichtig und mit dem für eine SMD-Montage erforderlichen leichtem Druck und immer möglichst flächig an der dafür definierten Oberfläche der Leiterplatte anliegt.The object of the invention is to develop a connection terminal with an SMD contact that can be used both right-handed and left-handed, whereby it should be ensured that the SMD contact always lies in the correct position and with the light pressure required for SMD assembly and always as flat as possible on the surface of the circuit board defined for this purpose.
Diese Aufgabe wird erfindugnsgemäß dadurch gelöst, daß die Stromschiene der Anschlußklemme in dem Isolierstoffgehäuse lagefixiert gehalten ist und daß an der Stromschiene ein elastisches Federbein befestigt ist, das in dem Isolierstoffgehäuse frei bewegbar positioniert ist, wobei an dem freien Ende des Federbeins zwei Z-förmig zueinander gebogene Lötkontaktflächen angeordnet sindThis object is achieved according to the invention in that the busbar of the connection terminal is held in a fixed position in the insulating housing and that an elastic spring leg is attached to the busbar, which is positioned so as to be freely movable in the insulating housing, with two Z-shaped solder contact surfaces bent towards one another being arranged at the free end of the spring leg.
(nachfolgend Z-Kontakt genannt) derart, daß die Längsachse des Federbeins koaxial mit der zentralen Hauptachse des Z-Kontaktes verläuft.(hereinafter referred to as Z-contact) such that the longitudinal axis of the strut is coaxial with the central main axis of the Z-contact.
Nach der Lehre der Erfindung ist an einem elastischen Federbein ein Z-Kontakt zu verwenden, der zwei Lötkontaktflächen hat, nämlich jeweils die im wesentlichen parallel zueinander verlaufenden Außenflächen der beiden Z-Schenkel.According to the teaching of the invention, a Z-contact is to be used on an elastic spring strut, which has two solder contact surfaces, namely the outer surfaces of the two Z-legs which run essentially parallel to one another.
Ein solcher Z-Kontakt hat den Vorteil, daß er rechts- und linksverwendbar ist und trotz dieser unterschiedlichen Verwendungsart immer ein drehrichtungsgleicher Anlagedruck zwischen der jeweiligen Lötkontaktfläche des Z-Kontaktes und der Oberfläche der Leiterplatte gegeben ist. Dementsprechend kann das elastische Federbein, dessen Längsachse koaxial mit der zentralen Hauptachse des Z-Kontaktes verläuft, konstruktiv so ausgelegt und relativ zu der in dem Isolierstoffgehäuse lagefixiert gehaltenen Stromschiene so angeordnet sein, daß immer der gewünschte leichte Anlagedruck beim Lötvorgang erreicht wird.Such a Z-contact has the advantage that it can be used on the right or left and, despite this different type of use, there is always a contact pressure in the same direction of rotation between the respective soldering contact surface of the Z-contact and the surface of the circuit board. Accordingly, the elastic spring leg, whose longitudinal axis runs coaxially with the central main axis of the Z-contact, can be designed and arranged relative to the busbar held in a fixed position in the insulating housing in such a way that the desired light contact pressure is always achieved during the soldering process.
Eine besonders vorteilhafte Ausführungsform der Erfindung sieht vor, daß das Federbein durch einen entsprechend reduzierten Rechteck-Querschnitt im wesentlichen als Drehstabfeder arbeitet, die bei Anlage einer der beiden Lötkontaktflächen des Z-Kontaktes an einer Leiterplatte torsionsbelastet ist.A particularly advantageous embodiment of the invention provides that the spring strut due to a correspondingly reduced rectangular cross-section essentially works as a torsion bar spring which is torsionally loaded when one of the two solder contact surfaces of the Z-contact is in contact with a circuit board.
• · 9 · 9
Daraus resultiert in- Verbindung mit dem stets drehrichtungsgleichen Anlagedruck des Z-Kontaktes, daß sich die wahlweise verwendbaren Lötkontaktflächen des Z-Kontaktes immer flächig an die Oberfläche der Leiterplatte anlegen, so daß der Lötvorgang unabhängig von der Links- oder Rechtsverwendung des Z-Kontaktes in jedem Fall hochwertig ausgeführt werden kann.This, in conjunction with the contact pressure of the Z-contact, which is always the same in the direction of rotation, means that the optionally usable soldering contact surfaces of the Z-contact always lie flat against the surface of the circuit board, so that the soldering process can always be carried out to a high standard regardless of whether the Z-contact is used on the left or right.
Die erfindungsgemäße Lösung ermöglicht es auch, dem mit der Stromschiene verbundenen und z.B. als Drehstabfeder ausgebildeten Federbein bei der Herstellung der Anschlußklemmen eine geringe Vorverformung zu geben, die sich beim SMD-Lötvorgang als leichte Vorspannung des Federbeins darstellt, wodurch die gewünschte flächige Anlage der Lötkontaktflächen des Z-Kontaktes gewährleistet ist.The solution according to the invention also makes it possible to give the spring strut connected to the busbar and designed, for example, as a torsion bar spring a slight pre-deformation during the manufacture of the connection terminals, which is represented as a slight pre-tension of the spring strut during the SMD soldering process, thereby ensuring the desired flat contact of the soldering contact surfaces of the Z-contact.
Eine besonders kostengünstige Ausführungsform der erfindungsgemäßen Anschlußklemmen sieht vor, daß die Stromschiene, das Federbein und der Z-Kontakt in einem Stück aus einem Flachmaterial ausgestanzt sind.A particularly cost-effective embodiment of the connection terminals according to the invention provides that the busbar, the spring strut and the Z-contact are punched out in one piece from a flat material.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnungen näher beschrieben. Es zeigen:An embodiment of the invention is described in more detail below with reference to the drawings. They show:
Fig. 1 die Seitenansicht auf einFig. 1 the side view of a
Isolierstoffgehäuse mit Leiterplatte und links- und rechtsmontierter Anschlußklemme,Insulated housing with circuit board and left and right mounted connection terminal,
• · i · i
Fig. 2 die Unteransicht der Darstellung nach Fig. 1,Fig. 2 shows the bottom view of the representation according to Fig. 1,
Fig. 3 in perspektivischer Darstellung die Stromschiene mit Z-Kontakt gemäß Fig. 1.Fig. 3 shows a perspective view of the busbar with Z-contact as per Fig. 1.
Dargestellt ist ein allgemein gültiger Anwendungsfall, bei dem in einem Isolierstoffgehäuse 4 eine Leiterplatte 5 vorhanden ist, die mit zwei identischen Anschlußklemmen der erfindungsgemäßen Art ausgerüstet ist.A generally valid application is shown in which a circuit board 5 is present in an insulating housing 4, which is equipped with two identical connection terminals of the type according to the invention.
Jede Anschlußklemme besteht in bekannter Weise aus einer von der Anmelderin entwickelten Klemmfeder &dgr; und der Stromschiene 7 (siehe hierzu DE 27 06 482 C2). Die Betätigungsöffnungen befinden sich oberhalb der Klemmfeder und die Leitereinführungsöffnungen 9 befinden sich an dem Isolierstoffgehäuse einmal links und einmal rechts.Each connection terminal consists in a known manner of a clamping spring &dgr; developed by the applicant and the busbar 7 (see DE 27 06 482 C2). The actuating openings are located above the clamping spring and the conductor insertion openings 9 are located on the insulating housing on the left and right.
Die Fig. 3 zeigt genauer, daß die Stromschiene in einem Stück mit einem elastischen Federbein ausgebildet ist. Wie Fig. 1 zeigt, ist die Stromschiene 7 in dem Isolierstoffgehäsue 4 lagefixiert gehalten, und das Federbein 10 befindet sich dabei in einem Freiraum in dem Isolierstoffgehäuse derart, daß es für die hier erforderlichen Zwecke frei bewegbar ist.Fig. 3 shows in more detail that the busbar is formed in one piece with an elastic spring leg. As Fig. 1 shows, the busbar 7 is held in a fixed position in the insulating housing 4, and the spring leg 10 is located in a free space in the insulating housing in such a way that it can be moved freely for the purposes required here.
An dem unteren freien Ende des Federbeins 10 ist der sog. Z-Kontakt 11 ausgebildet.The so-called Z-contact 11 is formed at the lower free end of the spring strut 10.
• ··
Dieser besitzt zwei Z-Schenkel, deren jeweilige Außenflächen parallel zueinander verlaufen und die Lötkontaktflächen 12 und 13 bilden.This has two Z-legs, the respective outer surfaces of which run parallel to each other and form the solder contact surfaces 12 and 13.
Der Z-Kontakt ermöglicht die Links- und Rechtsverwendbarkeit der Anschlußklemme, wie dies in den Fig. 1 und 2 dargestellt ist. Insbesondere Fig. 2 zeigt, daß bei der Linksanordnung die Lötkontaktfläche 13 die Leiterplatte kontaktiert und bei der Rechtsanordnung die Lötkontaktfläche 12 benutzt wird, um den Z-Kontakt mit der Oberfläche der Leiterplatte zu verlöten.The Z-contact allows the terminal to be used on the left or right, as shown in Fig. 1 and 2. In particular, Fig. 2 shows that in the left-hand arrangement the soldering contact surface 13 contacts the circuit board and in the right-hand arrangement the soldering contact surface 12 is used to solder the Z-contact to the surface of the circuit board.
Der SMD-LÖtvorgang ist bei der erfindungsgemäßen Anschlußklemme mit dem Z-Kontakt optimal auszuführen, da das Federbein 10 nur einen reduzierten Querschnitt hat und somit die unerwünschte Wärmeableitung aus dem Z-Kontakt bei Durchführung der Lötung verringert.The SMD soldering process can be carried out optimally with the connection terminal according to the invention with the Z-contact, since the spring leg 10 only has a reduced cross-section and thus reduces the undesirable heat dissipation from the Z-contact when soldering is carried out.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9411808U DE9411808U1 (en) | 1994-07-12 | 1994-07-12 | Terminal with SMD contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9411808U DE9411808U1 (en) | 1994-07-12 | 1994-07-12 | Terminal with SMD contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9411808U1 true DE9411808U1 (en) | 1994-09-29 |
Family
ID=6911434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9411808U Expired - Lifetime DE9411808U1 (en) | 1994-07-12 | 1994-07-12 | Terminal with SMD contact |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9411808U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19533364C1 (en) * | 1995-09-09 | 1997-02-13 | Weidmueller Interface | Electronics series terminal arrangement |
| DE19534315C1 (en) * | 1995-09-15 | 1997-02-13 | Weidmueller Interface | Electronics terminal block |
| WO2006091554A1 (en) * | 2005-02-22 | 2006-08-31 | Tyco Electronics Corporation | Low profile surface mount connector |
| US7513793B2 (en) | 2006-12-22 | 2009-04-07 | Tyco Electronics Corporation | Surface mount poke in connector |
-
1994
- 1994-07-12 DE DE9411808U patent/DE9411808U1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19533364C1 (en) * | 1995-09-09 | 1997-02-13 | Weidmueller Interface | Electronics series terminal arrangement |
| DE19534315C1 (en) * | 1995-09-15 | 1997-02-13 | Weidmueller Interface | Electronics terminal block |
| WO2006091554A1 (en) * | 2005-02-22 | 2006-08-31 | Tyco Electronics Corporation | Low profile surface mount connector |
| US7513793B2 (en) | 2006-12-22 | 2009-04-07 | Tyco Electronics Corporation | Surface mount poke in connector |
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