EP1713097A1 - Borne de connexion pour une bobine d'un transformateur - Google Patents

Borne de connexion pour une bobine d'un transformateur Download PDF

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Publication number
EP1713097A1
EP1713097A1 EP05007892A EP05007892A EP1713097A1 EP 1713097 A1 EP1713097 A1 EP 1713097A1 EP 05007892 A EP05007892 A EP 05007892A EP 05007892 A EP05007892 A EP 05007892A EP 1713097 A1 EP1713097 A1 EP 1713097A1
Authority
EP
European Patent Office
Prior art keywords
terminal
leg
clamp according
contact
end portion
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Withdrawn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
EP05007892A
Other languages
German (de)
English (en)
Inventor
Angelo Algeri
André Oftinger
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.)
Murrelektronik GmbH
Original Assignee
Murrelektronik 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 Murrelektronik GmbH filed Critical Murrelektronik GmbH
Priority to EP05007892A priority Critical patent/EP1713097A1/fr
Publication of EP1713097A1 publication Critical patent/EP1713097A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • 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
    • H01R4/34—Conductive members located under head of screw

Definitions

  • the invention relates to a terminal for the electrical connection of cables to a transformer according to the preamble of claim 1.
  • U-shaped terminals are known, which are pressed with a leg in a receptacle of the bobbin and held captive there.
  • the central web of the U-shaped terminal serves for the external connection of wires by means of a fastening screw, while the other leg at its free end bent over and is used as an inner terminal for the winding wire of the transformer coil.
  • the invention has for its object to make a terminal for a transformer such that with good mechanical strength and easy inner and outer terminal a slight contact even with changing wiring is possible.
  • the recording in Klemmancenklotz in which the leg of the terminal is held captive, to be provided with a transverse bore through which an electrical contact of the leg lying in the receptacle is possible.
  • the first and the second leg of the terminal are each held captive in an associated receptacle of the terminal block block and - preferably separated from each other - electrically contacted.
  • an end portion of a leg and the transverse bore intersect each other, so that each plugged into the transverse bore pin makes electrical connection with the leg.
  • the free end portion of a leg is narrower than the leg itself formed, wherein the end portions are mutually laterally offset in plan view of the legs of the terminal. This creates the possibility to contact each leg independently of the other by a separate transverse hole electrically.
  • each end portion has a contact opening for receiving a plug contact, wherein the contact openings of both legs of a terminal in plan view are preferably adjacent to each other. This ensures an independent contact.
  • the terminal is designed such that the first connection means is provided in the region between the central web of the U-shaped main body and the free end portion of the one leg and the second connection means in the region between the central web and the free end portion of the other leg.
  • each connection means is associated with a free leg. If the central web of the U-shaped body narrower, preferably considerably narrower than the legs formed, this can be easily separated, z. B. with a side cutter, so that the two captive held in the clamp body legs can lead different potential or different voltage.
  • the bobbin with a board provide and perform the electrical connection between the board and a terminal via plug contacts, each contacting the desired leg electrically.
  • the terminal 1 is used for the electrical connection of cables to a transformer, wherein inner terminals are provided for both the primary side as for the secondary side of the transformer windings as well as external terminals, with which the transformer windings are connected to a supply network or to a consumer.
  • Such a terminal 1 is attached to the terminal block 2 of the support body 3 for the coils of the transformer.
  • the support body 3 shown in Fig. 1 has z. B. a support body portion 4 for a primary coil and a support body portion 5 for a secondary coil. Front side of the support body a plurality of terminal block blocks 2 are provided, on each of which a terminal 1 according to the invention is pushed.
  • the terminal 1 is shown in Figures 2 to 8 in detail. It consists essentially of a U-shaped base body 6, the two mutually approximately parallel leg 7 and 8 shows. The two legs 7 and 8 are connected to each other via a connecting web 9, which forms the central web of the U-shaped base body 6.
  • each limb 7, 8 has a free end section 17, 18 which - see FIG. in particular Figures 6 and 7 - narrower than the legs 7, 8 itself is formed.
  • the end portions 17, 18 are formed about half as wide as the legs 7 and 8;
  • the width b of the end sections is smaller than half the width B of the leg 7 or 8.
  • Figures 6 and 7 also show that the end portions 17, 18 in plan view of the legs 7, 8 are mutually laterally offset.
  • the one end portion 17 is located on one side of the longitudinal central axis 10 of the terminal 1 while the other end portion 18 is located on the other side of the longitudinal central axis 10.
  • the end sections 17 and 18 advantageously each have a contact opening 27 and 28 which, relative to the longitudinal axis 10, have a lateral spacing c from one another.
  • the lateral distance c is selected such that the one contact opening 27 is located on one longitudinal side of the longitudinal center axis 10 and the other contact opening 28 on the other longitudinal side of the longitudinal central axis 10.
  • the contact openings 27 and 28 serve the electrical connection by means of a contact plug 20, as shown in an embodiment in Figures 9 and 10.
  • the contact plug 20 may be designed as a contact bridge or as a contact pin 40, as shown in Fig. 1.
  • the terminal 1 has first connection means 11 for an outer terminal 13 and second connection means 12 for an inner terminal 14.
  • the inner terminal 14 is for connection to the wires of the transformer winding, while the outer terminal 13 of the connection with external loads or an external voltage network is used.
  • the outer connection means 11 are formed by a fastening screw 19 which is to be screwed into a thread 15 formed in the leg 7.
  • the leg surface 21 facing the head of the fastening screw 19 is provided with groove-like notches 22 for frictionally holding a copper wire clamped between the head of the screw 19 and the leg surface 21.
  • the notches 22 are advantageously designed with a predetermined depth, so that with a correspondingly large fastening force, the copper material of the connecting wire is pressed into the grooves, whereby a positive-locking fastening is achieved with good electrical contact.
  • connection means 11, d. H. the pad 21 and the end portion 17 are approximately in a plane, while a hook 16 of the terminal means 12 is arranged for the inner terminal 14 at the end of the leg 8, which faces the connecting web 9.
  • the hook 16 is located approximately frontally of the central web of the terminal, as shown in particular Fig. 3 shows.
  • the narrow, preferably considerably narrower than the legs 7, 8 formed connecting web 9 is formed by a relief groove 23, in the region of the hook 16 of the inner terminal means 12 is located.
  • the formed by the undercut 23 Connecting web 9 is located on a longitudinal side of the terminal at a distance from the longitudinal central axis 10 and is provided such that it can be with a simple tool, for. B. a side cutter, can be separated without much effort. Thereby, the electrical connection between the two legs 7 and 8 of the terminal 1 are separated, so that the two legs 7, 8 of the terminal 1 may have different potential or different voltage (DC voltage, AC voltage). This is advantageous for adapting a transformer to an application.
  • the first and second legs 7, 8 are held captive in a respective receptacle 2a, 2b.
  • the receptacles 2a and 2b are provided with transverse bores, through which the contact openings 27 and 28 in the end portions 17, 18 are accessible.
  • the transverse bores 24 and the end sections 17 and 18 intersect each other.
  • This board 26 engages with its edge region 26 a, the transverse bores 24 so that an electrical connection between a circuit on the board 26 and the terminals 1 can be made by contact plug 20. So z. B.
  • the connecting web 9 is to be separated between the two legs 7 and 8 and via corresponding contact pins 40 which are inserted into the contact openings 27 and 28 of the end portions 17 and 18, to establish an electrical connection to the circuit on the board 26.
  • the board 26 can be mechanically held on the coil support body 3 via the contact pins.
  • contact bridges 20 can be used which connect the end sections 17, 18 of adjacent terminals 1 in the desired manner. So z. B. the output voltages to achieve a higher output voltage are connected in series, without wiring must be changed. By plugging or releasing contact bridges, the desired voltages can be switched. Since the contact openings 27, 28 of the end sections 17, 18 are next to each other in plan view, each leg, d. H. each inner and outer terminal 13, 14 independent of the other terminals via a contact pin 40 or a contact bridge 20 to achieve.
  • 17 locking teeth 29 are provided in the manner of a Christmas tree structure on the longitudinal edges 17a of the end portions, which dig into the elastic material of the bobbin 3.
  • the bobbin 3 is suitably made of a tough elastic plastic, so that after insertion of the end portion 17a in the receptacle 2a, the sawtooth fir tree structure prevents detachment from the receptacle 2a.
  • the end section 18 may have a Christmas tree structure on its longitudinal sides;
  • the intended for securing the leg 8 in the receptacle 2b sawtooth fir tree structure at the longitudinal edges 8a of the leg 8 is provided.
  • the sawtooth fir tree structure with the barb-like ratchet teeth 29 is shown enlarged in Fig. 8.
  • the contact bridge 20 shown in Figures 9 and 10 is used to connect adjacent terminals. It is provided that in each case the end portion 17 of the outer terminal 13 is to be connected to the end portion 18 of an inner terminal 14 of an adjacent terminal.
  • the legs 20a and 20b of the bow-shaped contact bridge 20 are therefore designed to have different lengths to ensure contact with the lying at different heights contact openings 27 and 28.
  • the contact ends 30 of the legs 20a and 20b are resilient, such that their width E is greater than the measured in the longitudinal direction of an end portion 17, 18 length e of a contact opening 27 and 28.
  • When inserting the contact end 30 in the direction of arrow 31 feathers the contact pins together until the largest-width portion 32 is pushed through the contact holes 27, 28.
  • the contact end 30 is held captive with good electrical contact in the end portion 17 and 18, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP05007892A 2005-04-11 2005-04-11 Borne de connexion pour une bobine d'un transformateur Withdrawn EP1713097A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05007892A EP1713097A1 (fr) 2005-04-11 2005-04-11 Borne de connexion pour une bobine d'un transformateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05007892A EP1713097A1 (fr) 2005-04-11 2005-04-11 Borne de connexion pour une bobine d'un transformateur

Publications (1)

Publication Number Publication Date
EP1713097A1 true EP1713097A1 (fr) 2006-10-18

Family

ID=35432243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007892A Withdrawn EP1713097A1 (fr) 2005-04-11 2005-04-11 Borne de connexion pour une bobine d'un transformateur

Country Status (1)

Country Link
EP (1) EP1713097A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2876986A3 (fr) * 2013-11-26 2016-01-20 Delta Electronics (Shanghai) Co., Ltd. Boîtier, bobine et dispositif électronique
CN108780694A (zh) * 2016-03-28 2018-11-09 索尼公司 线圈部件、电子部件和电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312513A1 (de) 1982-11-05 1984-10-11 Gebrüder Frei GmbH & Co KG, 7470 Albstadt Transformator
DE4105076A1 (de) * 1991-02-19 1992-08-20 Phoenix Elekt Elektrische anschlussklemme
EP0751540A1 (fr) * 1995-06-30 1997-01-02 Legrand Carcasse pour transformateur, et transformateur comportant une telle carcasse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312513A1 (de) 1982-11-05 1984-10-11 Gebrüder Frei GmbH & Co KG, 7470 Albstadt Transformator
DE4105076A1 (de) * 1991-02-19 1992-08-20 Phoenix Elekt Elektrische anschlussklemme
EP0751540A1 (fr) * 1995-06-30 1997-01-02 Legrand Carcasse pour transformateur, et transformateur comportant une telle carcasse
EP0751540B1 (fr) 1995-06-30 2000-04-12 Legrand Carcasse pour transformateur, et transformateur comportant une telle carcasse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2876986A3 (fr) * 2013-11-26 2016-01-20 Delta Electronics (Shanghai) Co., Ltd. Boîtier, bobine et dispositif électronique
US9468120B2 (en) 2013-11-26 2016-10-11 Delta Electronics (Shanghai) Co., Ltd. Housing, bobbin, and electronic device
CN108780694A (zh) * 2016-03-28 2018-11-09 索尼公司 线圈部件、电子部件和电子设备
CN108780694B (zh) * 2016-03-28 2022-08-05 索尼公司 线圈部件、电子部件和电子设备
US11538623B2 (en) 2016-03-28 2022-12-27 Sony Corporation Coil component, electronic component, and electronic apparatus

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