EP2017922A2 - Contact de ressort pour un connecteur à fiche électrique et connexion à fiche - Google Patents

Contact de ressort pour un connecteur à fiche électrique et connexion à fiche Download PDF

Info

Publication number: EP2017922A2
Authority: EP; European Patent Office
Prior art keywords: contact; spring; legs; longitudinal axis; contacts
Prior art date: 2007-07-16
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP08011823A

Other languages

German (de)

English (en)

Other versions

EP2017922B1 (fr

EP2017922A3 (fr

Inventor

Franc Stuklek

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.)

ELRAD International doo

Original Assignee

ELRAD International doo

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.)

2007-07-16

Filing date

2008-07-01

Publication date

2009-01-21

2008-07-01 Application filed by ELRAD International doo filed Critical ELRAD International doo

2009-01-21 Publication of EP2017922A2 publication Critical patent/EP2017922A2/fr

2010-06-02 Publication of EP2017922A3 publication Critical patent/EP2017922A3/fr

2012-04-11 Application granted granted Critical

2012-04-11 Publication of EP2017922B1 publication Critical patent/EP2017922B1/fr

Status Not-in-force legal-status Critical Current

2028-07-01 Anticipated expiration legal-status Critical

Links

Images

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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
- H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
- 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
- H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
- H01R12/7011—Locking or fixing a connector to a PCB
- H01R12/707—Soldering or welding
- 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
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
- H01R12/727—Coupling devices presenting arrays of contacts
- 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
- 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
- H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket

Definitions

the invention relates to a spring contact for an electrical connector having at one end at least two resilient, oppositely disposed contact legs for receiving a mating contact, which is insertable in the insertion along the central longitudinal axis of the spring contact between the two contact legs.
the invention relates to a plug connection with at least one such spring contact.
Such spring contacts for receiving blade contacts are known from the prior art.
battery-powered power tools such as drill hammers
the batteries or accumulators to contact the power tool via rigid blade contact strips and spring contact strips electrically.
more and more powerful battery-powered power tools have been developed in which sometimes high peak currents up to 150 amps flow. Due to these high currents special demands are placed on the connector between the battery and the power tool.
rigid blade contact strips and spring contact strips the problem is that both contact strips must be exactly aligned with each other to produce sufficient electrical contact.
the contact strips or individual contacts are not aligned with each other, it can come to shock due to shocks, such as occur in rotary hammers, contact due to insufficient contact surfaces and contact forces.
the spring contact according to the invention on the outer longitudinal side facing away from the outer sides of the contact legs engages in each case a spring leg.
the spring legs press the oppositely arranged contact legs in the direction perpendicular to the central longitudinal axis against each other. When inserted counter contact, the spring legs each exert a contact pressure on the mating contact.
the contact legs are resilient and very flexible, so that they compensate for contacting a mating contact tolerances between can set the mating contact and the spring contact.
the spring legs which may be formed as steel springs, ensure a uniform contact pressure on both sides of the inserted mating contact, even if the mating contact with the spring contact is not exactly aligned.
the contact force can be easily adapted to the desired application by selecting the appropriate steel spring or the material and the geometry of the spring leg.
a plurality of resiliently suspended contact legs may be arranged in pairs opposite each other.
the mating contact can be inserted in the insertion direction along the central longitudinal axis of the spring contact between the opposing contact leg pairs, wherein acts on the outer sides of each contact leg, a spring leg. Due to the parallel arrangement of a plurality of pairs of contact legs, in which a trained example as a knife contact mating contact can be introduced, the contact area between the contact legs and the mating contact is substantially increased. In this case, even with a lateral offset or an angular tilt hiss the contact legs and the mating contact the contact safely guaranteed.
a particularly secure contact can be achieved in that the oppositely arranged contact legs are formed at their free ends approximately V-shaped.
V-shaped contact elements which extend toward one another contact each other and contact them when the mating contact is introduced.
a solder projection can be formed at the other end of the spring contact, with which the spring contact can be soldered directly to a printed circuit board. Due to the direct solderability of the spring contact on the circuit board, the spring contact according to the invention can be easily connected to an electronic circuit. Due to the spring elasticity and the flexibility of the contact legs, the mobility necessary for a tolerance compensation is ensured despite the rigid connection to the guide plate.
a particularly stable connection between the spring contact and the printed circuit board can be achieved in that a plurality of soldering pins is formed on the soldering attachment.
the soldering pins can extend perpendicular to the central longitudinal axis of the spring contact and can thereby plug easily into provided on the circuit board solder holes.
the spring contact according to the invention can be manufactured in a particularly simple manner by integrally forming the contact legs and the soldering attachment with the soldering pins from a metal sheet with good electrical conductivity.
a particularly good contact pressure transmission can be achieved in that the spring legs extend substantially parallel to the associated contact legs. This structure is also very compact.
the spring legs may be integrally formed on the mutually parallel support walls of a substantially U-shaped spring element.
the spring element can encompass the oppositely arranged contact legs in such a way that the inner sides of the support walls come to rest against the outer sides of the contact legs.
the spring element is for this purpose as a separate component, for example made of steel and can be put over the contact leg arrangement in a simple manner when assembling the spring contact.
At least one trough and at the contact limbs facing inner sides of the spring legs each have a corresponding extension formed on the outer sides of the oppositely disposed contact legs, which in the respective Mulde intervenes.
a plug connection can have at least one spring contact according to the invention.
a plurality of spring contacts can be soldered parallel side by side on one side of a printed circuit board.
the spring contacts can be supported on the underside by a common lower housing part and the top side to be covered by a common upper housing part.
the printed circuit board can be at least partially supported by the lower housing part and at least partially covered by the upper housing part.
the upper housing part may be divided more than for this purpose and have at least one area in which a housing cover is formed.
the lower housing part in the region of the spring contacts and perpendicular to the central longitudinal axis a plurality of recesses for receiving formed on the upper housing part, comb-like in the direction of the housing lower part protruding projections.
the spring contact according to the invention can be securely held in a simple manner, wherein the contact legs are guided with the spring legs applied thereto by the defined between the recesses of the housing base and the projections of the upper housing part vertical slots.
the slot widths are determined by the sheet thicknesses of the contact legs and the spring legs.
cavities When joining the lower housing part and upper housing part cavities may be formed, in which the spring contacts are arranged.
the cavities provide the spring contacts the necessary freedom for a tolerance compensation movement.
the cavities are open at least in the insertion direction of the mating contacts.
At least two opposing slots can be formed in each of the cavities perpendicular to the central longitudinal axis for insertion of a respective blade contact.
FIGS. 1 to 3 show a schematic representation of a spring contact 8a for an electrical connector in different views.
the FIG. 1 shows the spring contact 8a in plan view, the FIG. 2 in side view and the FIG. 3 in a perspective exploded view.
the spring contact 8a has at its in the FIGS. 1 to 3 left end A four spring-elastic, in pairs oppositely disposed contact legs 10a and 10b and 12a and 12b.
the mating contact 14 is designed as a blade contact.
a spring leg 16a, 16b, 18a and 18b At the middle longitudinal axis M remote from the outer sides of the contact legs 10a, 10b, 12a and 12b engages in each case a spring leg 16a, 16b, 18a and 18b.
the spring legs 16a, 16b, 18a and 18b extend parallel to the associated contact legs 10a, 10b, 12a and 12b.
Each spring leg 16a, 16b, 18a and 18b presses the oppositely disposed contact legs 10a and 10b and 12a and 12b in the direction perpendicular to the central longitudinal axis M in the direction against each other.
a contact pressure is exerted on the mating contact 14 when it is inserted between those between the opposing contact leg pairs 10a, 10b and 12a, 12b.
the mating contact 14 is the representation of FIG. 1 shown in the non-inserted state. However, the inserted state is not shown in the figures.
the oppositely arranged contact legs 10a and 10b or 12a and 12b are formed at their free ends F about V-shaped and form V-shaped successive contact elements 20a and 20b and 22a and 22b.
the contact elements 20a and 20b or 22a and 22b contact the mating contact 14 when it is in the inserted state (not shown in the figures).
the oppositely arranged contact legs 10a and 10b and 12a and 12b are angled at their free ends F, wherein the free ends F face away from each other.
the spring contact 8a has at its in the FIGS. 1 to 3 right end B to a soldering lug 24, with which the spring contact 8a directly to a circuit board, in the FIG. 2 is shown schematically and provided with the reference numeral 26, can be soldered.
a soldering lug 24 with which the spring contact 8a directly to a circuit board, in the FIG. 2 is shown schematically and provided with the reference numeral 26, can be soldered.
four four arranged at the corners of a rectangle Lötpins 28a, 28b, 28c and 28d are formed on the solder tail 24, which extend perpendicular to the central longitudinal axis M of the spring contact 8a.
the soldering pins 28a, 28b, 28c and 28d can be inserted into solder holes 30 (not shown) provided on the printed circuit board 26 and soldered there.
the contact legs 10a, 10b, 12a and 12b and the solder tail 24 are formed integrally with the soldering pins 28a, 28b, 28c and 28d from a metal sheet.
the spring legs 16a, and 18a on the support wall 32a and the spring legs 16b and 18b on the Stützwitz 32b of a substantially U-shaped spring member 34 is formed.
the two support walls 32a and 32b are arranged parallel to one another and are connected to one another by a web 33.
the two through the web 33 interconnected support walls 32a and 32b together with the spring legs 16a, 16b, 18a and 18b, a spring element 34.
the spring element 34 is integrally formed from a steel sheet.
the spring element 34 surrounds the oppositely disposed contact legs 10a and 10b or 12a and 12b such that the inner sides of the support walls 32a and 32b come to rest on the outer sides of the contact legs 10a and 10b or 12a and 12b.
FIG. 3 is the state in which the spring element 34 is lifted from the contact legs 10a and 10b and 12a and 12b.
the spring element can be placed on the contact legs 10a and 10b or 12a and 12b.
a corresponding extension 38a and 38b is formed at the contact legs 10a and 10b facing inner sides of the spring legs 16a and 16b, respectively.
a corresponding extension 39a and 39b is formed at the inner sides of the spring legs 18a and 18b facing the contact limbs 12a and 12b.
the projections 38a and 38b or 39a and 39b engage in the troughs 36a and 36b and 37a and 37b, respectively.
the spring element 34 must be placed on the contact legs 10a and 10b or 12a and 12b in the direction of the arrows P.
FIG. 4 shows a schematic representation and in a partially sectioned plan view of a plug connection, wherein the housing upper part 42 is partially removed.
the connector has five spring contacts 8a, 8b, 8c, 8d, 8e, which are soldered parallel side by side on one side of a printed circuit board 26.
the spring contacts 8a, 8b, 8c, 8d and 8e are supported on the underside by a common housing lower part 40. On the upper side, the spring contacts 8a, 8b, 8c, 8d and 8e are covered by an upper housing part 42.
the printed circuit board 26 is at least partially supported by the lower housing part 40. In addition, the printed circuit board can also be covered by the upper housing part 42. In the presentation of the FIG. 4 the upper housing part 42 is formed in two parts, wherein the circuit board 26 covering part of the upper housing part is not shown.
cavities are formed in the connector, of which only in the partially open view of the FIG. 4 shown cavities are provided with the reference numerals 50a and 50b.
the spring contacts are arranged, wherein in the partially open view of the FIG. 4 shown spring contacts are provided with the reference numerals 8a and 8b.
the cavities 50a and 50b are open in the insertion direction E of the mating contact 14.
FIG. 5 shows in a schematic representation and in a partially sectioned frontal view in the FIG. 4 illustrated connector.
cavities 50c, 50d and 50e are perpendicular to the central longitudinal axis M, which in the representation of FIG. 5 hineinerstreckt into the plane of the drawing, in each case two opposing slots 52c and 54c and 52d and 54d and 52e and 54e formed.
the respective blade contact is aligned so that it extends between two contact legs arranged opposite one another.
the opposing slots 52c and 54c and 52d and 54d and 52e and 54e are thus in the plane defined by the blade contact.
the housing lower part 40 has in the region of in the FIG. 4 shown spring contacts 8a and 8b on a plurality of recesses, of which in the illustration of FIG. 5 only the recesses are shown by reference numerals 44a, 44b and 44c.
the recesses 44a, 44b and 44c extend perpendicular to the central longitudinal axis M.
the recesses 44a, 44b and 44c serve to receive formed on the upper housing part 42, comb-like in the direction of the housing base 40 protruding projections, of which in the illustration of FIG. 5 only the projections with the reference numerals 46a, 46b and 46c are shown.
the contact legs 10a and 10b or 12a and 12b of the spring contacts 8a, 8b, 8c, 8d and 8e with the spring legs 16a and 16b or 18a and 18b applied thereto can be replaced by the between the recesses 44a, 44b and 44c of the housing base 40th and the projections 46a, 46b and 46c of the housing top 42 defined vertical slots 48a, 48b, 48c and 48d pass.
the slot widths are determined by the sheet thicknesses of the contact legs 10a and 10b or 12a and 12b and the spring legs 16a and 16b or 18a and 18b.

Landscapes

Coupling Device And Connection With Printed Circuit (AREA)

EP08011823A 2007-07-16 2008-07-01 Connecteur électrique avec au moins un contact à ressort Not-in-force EP2017922B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102007032992A DE102007032992A1 (de)	2007-07-16	2007-07-16	Federkontakt für eine elektrische Steckverbindung und Steckverbindung

Publications (3)

Publication Number	Publication Date
EP2017922A2 true EP2017922A2 (fr)	2009-01-21
EP2017922A3 EP2017922A3 (fr)	2010-06-02
EP2017922B1 EP2017922B1 (fr)	2012-04-11

Family

ID=39884725

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP08011823A Not-in-force EP2017922B1 (fr)	2007-07-16	2008-07-01	Connecteur électrique avec au moins un contact à ressort

Country Status (5)

Country	Link
US (1)	US7780489B2 (fr)
EP (1)	EP2017922B1 (fr)
CN (1)	CN101394037A (fr)
AT (1)	ATE553517T1 (fr)
DE (1)	DE102007032992A1 (fr)

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DE202006016424U1 (de) *	2006-10-20	2007-01-04	Phoenix Contact Gmbh & Co. Kg	Elektrische Kontaktvorrichtung

2007
- 2007-07-16 DE DE102007032992A patent/DE102007032992A1/de not_active Withdrawn
2008
- 2008-07-01 EP EP08011823A patent/EP2017922B1/fr not_active Not-in-force
- 2008-07-01 AT AT08011823T patent/ATE553517T1/de active
- 2008-07-16 CN CNA2008101769608A patent/CN101394037A/zh active Pending
- 2008-07-16 US US12/218,618 patent/US7780489B2/en not_active Expired - Fee Related

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3444905A1 (fr) *	2017-08-18	2019-02-20	HILTI Aktiengesellschaft	Raccord à emboîtement pour une unité d'accumulateur
WO2019034487A1 (fr) *	2017-08-18	2019-02-21	Hilti Aktiengesellschaft	Couplage par enfichage pour unité de batterie
CN111564721A (zh) *	2020-04-07	2020-08-21	东莞立讯技术有限公司	电连接器
CN111564721B (zh) *	2020-04-07	2021-08-03	东莞立讯技术有限公司	电连接器
US11211734B2 (en)	2020-04-07	2021-12-28	Dongguan Luxshare Technologies Co., Ltd	Electrical connector

Also Published As

Publication number	Publication date
EP2017922B1 (fr)	2012-04-11
DE102007032992A1 (de)	2009-01-29
EP2017922A3 (fr)	2010-06-02
US7780489B2 (en)	2010-08-24
ATE553517T1 (de)	2012-04-15
US20090053941A1 (en)	2009-02-26
CN101394037A (zh)	2009-03-25

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