EP0326141A2 - Dispositif de fixation de fils de raccordement au secteur pour le couplage de circuits imprimés - Google Patents

Dispositif de fixation de fils de raccordement au secteur pour le couplage de circuits imprimés Download PDF

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Publication number
EP0326141A2
EP0326141A2 EP89101375A EP89101375A EP0326141A2 EP 0326141 A2 EP0326141 A2 EP 0326141A2 EP 89101375 A EP89101375 A EP 89101375A EP 89101375 A EP89101375 A EP 89101375A EP 0326141 A2 EP0326141 A2 EP 0326141A2
Authority
EP
European Patent Office
Prior art keywords
circuit board
printed circuit
connecting terminal
terminal
bore
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Withdrawn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
EP89101375A
Other languages
German (de)
English (en)
Other versions
EP0326141A3 (fr
Inventor
Martin Lohner
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.)
Bsg-Schalttechnik & Co KG GmbH
Original Assignee
Bsg-Schalttechnik & Co KG GmbH
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 Bsg-Schalttechnik & Co KG GmbH filed Critical Bsg-Schalttechnik & Co KG GmbH
Publication of EP0326141A2 publication Critical patent/EP0326141A2/fr
Publication of EP0326141A3 publication Critical patent/EP0326141A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • H01R12/53—Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon 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
    • 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
    • H01R12/70—Coupling devices
    • H01R12/7076—Coupling devices for connection between PCB and component, e.g. display
    • 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
    • H01R12/70—Coupling devices
    • H01R12/7088—Arrangements for power supply
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the invention relates to a device according to the preamble of claim 1. It has long been known to use discrete electrical circuit elements such as resistors, capacitors, transformers, coils and the like. Very often also to be arranged together with integrated components (IC) on printed circuit boards, these components being arranged on one side of the printed circuit board, usually on the component side or component side, and with their electrical connections being led through holes to the other side of the printed circuit board, where they are be soldered to the respective connections of conductor tracks on this other side. This results at the same time in addition to the mechanical fastening, the electrical connection.
  • IC integrated components
  • Printed circuit boards equipped in this way are often used for the electrical control or regulation of electrical hand tools or other machines, starting from the printed circuit board also setting wheels for a potentiometer adjustment or switches can be operated from the outside. It is of course necessary to lead the network connection wires to the circuit elements on the printed circuit board or to the printed circuit board and to make electrical contact there best together with a corresponding mechanical fastening.
  • the power supply terminals or the fastening options for the network strands on the printed circuit board are very often the fact that the power supply terminals or the fastening options for the network strands on the printed circuit board, specifically on the component side in the region or in any case in the vicinity of the ventilation slots or have to be arranged for geometric reasons.
  • the aim is that the power supply lines or strands can never come near such ventilation slots, for example if the strands are unintentionally loosened or shaken off, and there are also mandatory regulations that ensure that, to name numerical values here , even with loosened strands they must not reach the ventilation slots from the inside up to a distance of, for example, 8 mm.
  • the attachment of the power cord is therefore problematic with such circuit boards and becomes even more problematic when, as is usual, the circuit board is in a potting (part) housing and is therefore designed so that the entire circuit board after the made
  • the assembly is located inside the encapsulation housing in a plastic encapsulation compound which extends beyond the assembly side and also at least partially encompasses the electrical circuit elements arranged on it, possibly also completely covering it.
  • Such pre-assembled printed circuit boards with their potting housing are then to be installed in the respective hand tools, machines and devices and only at this point in time can the electrical connections be made, so that in such known cases it is fundamentally necessary and only possible to remove the strands from above , so from the component side to the circuit board and depending on the position of existing terminals on the circuit board the connection to make.
  • the strands often have to be routed over sub-areas of circuit elements on the circuit board, so that long conductor runs with safety clearances are required and, furthermore, it cannot be ruled out that interfering influences on the components, for example IC and such.
  • interfering influences on the components for example IC and such.
  • electromagnetic induction for example.
  • the invention is therefore based on the object, in the case of printed circuit boards equipped with corresponding electronic circuits, to attach the power connections in such a way that they are set without impairing the component side of the printed circuit board or without the possibility of getting into the area of the ventilation slots of the device.
  • the device according to the invention solves this problem with the characterizing features of the main claim and has the advantage that the insertion of the stranded wire into a hole in the terminal prevents it from below, that is to say from the conductor track side of the printed circuit board or, if a potting housing is present, through it. that the strands of electronics ventilated from above can get close to the ventilation slots in the event of a malfunction, i.e. if they are loosened from the connection terminal by shaking or other reasons.
  • interference from over the electrical or electronic components on the printed circuit board also avoid strands.
  • Another advantage is that the invention now makes it possible to place the terminals in the most favorable place in the layout, which means that long conductor runs with safety clearances can be dispensed with. If, in the case of the present invention, the stranded wire is nevertheless loosened, it can only fall out of the printed circuit board or out of the composite printed circuit board in the encapsulating housing and in no way runs the risk of coming into contact with the existing ventilation slots.
  • the basic idea of the present invention is to design a lead insertion to be fastened on a printed circuit board for the line voltage leading lead so that a through hole is provided on the assembly side up to the underside of the printed circuit board, this hole from both the connecting terminal and the Printed circuit board is formed, so that it is possible to insert the stranded wire to be connected to the printed circuit board from below, that is to say from the conductor track side, into the connecting terminal and then to achieve the fastening of the stranded wire starting from the assembly side.
  • the printed circuit board is denoted by 10, the connecting terminal attached to it by 11 and the connecting wire, in particular carrying mains voltage, by 12.
  • the connector can be any Shape, that is round (cylindrical) or rectangular or square, generally have a square shape, the embodiments of Figures 1 and 2 refer to the square shape of the terminal.
  • the connecting terminal has a rectangular base body 13, from which connecting legs 14 extend downward, that is to say in the direction of the printed circuit board 10; in the illustrated embodiment, two connecting legs 14 are provided, which are pressed into corresponding recesses 15 in the circuit board.
  • the printed circuit board has a further opening 16 in the center, which is larger or at least the same size as a central bore 17 in the body 13 of the connecting terminal 11 which in the illustrated embodiment extends up to the top.
  • the inner bore 17 of the terminal is stepped; it tapers in an upper region 17a in the plane of the drawing to form an intermediate shoulder 18, which can form a stop for the insulation 19 of the connecting strand 12 in a suitable manner, so that the stranded wire is not pushed through as far as possible, but rather up to the stop is introduced, whereby the bare strand part, freed from the insulation, can then be mechanically and also electrically conductively connected to the connecting terminal by the action of a clamping screw 20.
  • the component side of the printed circuit board 10 is designated 10a and the conductor track side 10b; it can be seen that the terminal 11 is applied to the component side 10a and with its connecting legs 14th is pressed into the circuit board through the holes 15, the connecting legs projecting beyond the surface of the conductor track side 10b to such an extent that corresponding soldering 21 is possible at this point.
  • the connecting wire 12 can be inserted into the terminal 11 from below in the plane of the drawing, so that it is ensured that the electrical connecting wire, which normally carries the high mains voltage of 220 V, does not come into the area of the component side 10a of the printed circuit board and above all Things also cannot get into the area of the ventilation slots of the device equipped with such an electrical circuit on a printed circuit board.
  • the ventilation slots are and must understandably always be arranged in such a way that they enable effective cooling of the component side of the printed circuit board, and the network connection wire is removed from this area by the device according to the invention.
  • a terminal 11 'of round shape is used; in this case, the connection terminal has a tapered collar 23 at the bottom, with which it is pressed into a corresponding bore 24 of the printed circuit board which receives the collar; in this case, of course, the separate attachment of an additional hole 16 is unnecessary, since this already results in the continuous insertion opening for the strand 12 coming from below '.
  • the soldering 21' takes place, as in the region of the connecting legs of the terminal block with an angular shape.
  • the shape of the printed circuit board 10 'receiving potting case 22 is made such that the potting case in the region of the bore 17 '(Fig. 3) has a raised ring wall 25 which is practically flush, while the outer wall parts 22a of the potting case still exceeding in height, is inserted into the inner bore 17' of the terminal and ends just below the shoulder 18 '. In this way, there is also a perfect seal against the potting compound when it is inserted into the potting case, and a corresponding centering of the circuit board before potting.
  • connection terminal in connection with the printed circuit board and possibly the surrounding encapsulation housing enables the positioning of the connection terminal in the most favorable place in the layout with the shortest conductor runs and does not require any consideration of the proximity of ventilation slots in the outer housing which accommodates the entire device take, because if the wire is loosened, it cannot slide up into the area of the ventilation slots; this is already prevented by the dimensioned length of the strands and the rest of the collar 18, 18 'in the inner bore 17, 17' contributes to this.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
EP89101375A 1988-01-28 1989-01-27 Dispositif de fixation de fils de raccordement au secteur pour le couplage de circuits imprimés Withdrawn EP0326141A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802441 1988-01-28
DE3802441A DE3802441A1 (de) 1988-01-28 1988-01-28 Vorrichtung zur befestigung von netzanschlusslitzen bei auf leiterplatten angeordneten schaltungen

Publications (2)

Publication Number Publication Date
EP0326141A2 true EP0326141A2 (fr) 1989-08-02
EP0326141A3 EP0326141A3 (fr) 1990-07-18

Family

ID=6346134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101375A Withdrawn EP0326141A3 (fr) 1988-01-28 1989-01-27 Dispositif de fixation de fils de raccordement au secteur pour le couplage de circuits imprimés

Country Status (2)

Country Link
EP (1) EP0326141A3 (fr)
DE (1) DE3802441A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700070A1 (fr) * 1992-12-29 1994-07-01 Funai Electric Co Borne de raccordement d'un fil électrique.
GB2364182A (en) * 2000-03-06 2002-01-16 Home Automation Ltd Electrical terminal for dimmer switch
WO2002073746A1 (fr) * 2001-03-14 2002-09-19 Actaris Zähler & Systemtechnik GmbH Connecteur de lignes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10261781A1 (de) * 2002-12-19 2004-07-01 Würth Elektronik GmbH & Co. KG Kontaktelement in SMT

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992403A (en) * 1957-04-01 1961-07-11 Grayhill Electrical jack
FR2268371A1 (fr) * 1974-04-18 1975-11-14 Itt
DE3406184A1 (de) * 1984-02-21 1985-08-22 Carl Braun Camera-Werk GmbH, 8500 Nürnberg Verbinder fuer isolierte elektrische leitungen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992403A (en) * 1957-04-01 1961-07-11 Grayhill Electrical jack
FR2268371A1 (fr) * 1974-04-18 1975-11-14 Itt
DE3406184A1 (de) * 1984-02-21 1985-08-22 Carl Braun Camera-Werk GmbH, 8500 Nürnberg Verbinder fuer isolierte elektrische leitungen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700070A1 (fr) * 1992-12-29 1994-07-01 Funai Electric Co Borne de raccordement d'un fil électrique.
GB2274029A (en) * 1992-12-29 1994-07-06 Funai Electric Co Electric wire-connecting terminal for pcb
US5443391A (en) * 1992-12-29 1995-08-22 Funai Electric Co., Ltd. Electric wire-connecting terminal
GB2274029B (en) * 1992-12-29 1996-12-04 Funai Electric Co Printed circuit board terminal assembly
GB2364182A (en) * 2000-03-06 2002-01-16 Home Automation Ltd Electrical terminal for dimmer switch
GB2364182B (en) * 2000-03-06 2003-11-26 Home Automation Ltd Electrical terminal
WO2002073746A1 (fr) * 2001-03-14 2002-09-19 Actaris Zähler & Systemtechnik GmbH Connecteur de lignes

Also Published As

Publication number Publication date
EP0326141A3 (fr) 1990-07-18
DE3802441A1 (de) 1989-08-10

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