EP3627630A1 - Federstiftstecker - Google Patents

Federstiftstecker Download PDF

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Publication number
EP3627630A1
EP3627630A1 EP18196333.1A EP18196333A EP3627630A1 EP 3627630 A1 EP3627630 A1 EP 3627630A1 EP 18196333 A EP18196333 A EP 18196333A EP 3627630 A1 EP3627630 A1 EP 3627630A1
Authority
EP
European Patent Office
Prior art keywords
pin
spring
axial direction
hole
pin connector
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.)
Pending
Application number
EP18196333.1A
Other languages
English (en)
French (fr)
Inventor
Tanguy Tronel
Eric Streissel
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.)
Preci Dip SA
Original Assignee
Preci Dip SA
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 Preci Dip SA filed Critical Preci Dip SA
Priority to EP18196333.1A priority Critical patent/EP3627630A1/de
Priority to PCT/EP2019/075490 priority patent/WO2020064611A1/en
Publication of EP3627630A1 publication Critical patent/EP3627630A1/de
Pending 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
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs

Definitions

  • the present invention relates to a spring pin connector, typically used in electric or electronical devices to provide connections with printed circuits, electric pads, electric terminals.
  • spring pin connectors typically comprise a pin, provided moveable in a housing, and a spring, arranged to push the pin from a connecting position to a rest position.
  • a spring arranged to push the pin from a connecting position to a rest position.
  • it is known to provide a slanted or biased pushed surface onto the pin.
  • this design is not compact and/or limits the maximum axial stroke of the pin.
  • the present invention aims to address the above mentioned drawbacks of the prior art, and to propose first a spring pin connector with micro cuts protection, and a maximized stroke, with a compact design.
  • a first aspect of the invention is directed to a spring pin connector, comprising:
  • the spring pin connector comprises a ground surface which is inclined versus the axial direction, and which is opposite to the pin. Due to this inclination, the spring pushes the pin with a non axial or non aligned pushing force, creating a tilting of the pin and thus a lateral contact between the pin and the housing, so as to provide the avoidance of micro cuts. Since the ground surface is provided on the housing side, the pin can be provided with a non inclined / symmetric pushed surface, and then a blind hole can be implemented in the pin to accommodate the spring so as to minimize the axial length of the connector. The design is rendered compact, and/or the spring can be designed with an increased length so as to decreased internal stress to maximize the number of connexions.
  • the first position is a rest position
  • the second position is a connecting position
  • the invention relates to a spring pin connector, comprising:
  • the invention relates to a spring pin connector, comprising:
  • the invention relates to a spring pin connector, comprising:
  • the invention relates to a spring pin connector, comprising:
  • the spring contacts the pin via a pushed surface which is perpendicular and/or symmetric relative to the axial direction. Since the surface on the housing side is slanted, it is not necessary to implement a slanted surface on the pin side to provide the micro cuts avoidance.
  • the pin comprises a blind hole, and the spring is at least partially arranged into the blind hole.
  • the length of the spring connector is short, and the connector is still easy to manufacture, as the blind hole end does not need to be implemented with a slanted surface.
  • the blind hole comprises a conical end, typical of a drilling process.
  • the female housing comprises:
  • the cap is press fit into the hole. This design is reliable and cost effective.
  • the cap comprises at least one shoulder arranged in contact with the body.
  • Axial position of the ground surface is defined by construction.
  • the cap comprises at least one rear shoulder and/or rear pin arranged opposite to the ground surface.
  • the female housing comprises a crimped portion for defining an abutment surface to the pin into the rest position.
  • the ground surface is inclined to the axial direction in a range of [70° - 88°], preferably in a range of [74° - 85°] and more preferably in a range of [75° - 80°].
  • a second aspect of the invention relates to an electronic device, comprising at least one spring pin connector according to the first aspect of the invention.
  • the figure 1 represents a spring pin connector comprising a female housing 10 made of a body 10a and a cap 10b.
  • the body 10a comprises a hole 12 presenting an axial direction XX', into which a pin 20 is arranged to slide or translate.
  • a spring 30 is arranged between a ground surface 11 of the cap 10b and an end surface of a blind hole of the pin 20, to push the pin 20 to the right side of figure 1 , in a rest position as represented. In this rest position, a shoulder 20a of the pin 20 abuts against a crimped portion of the body 10a.
  • the ground surface of the cap 10b is slanted respectively to the axial direction XX' with angle ⁇ , so that the spring 30 has a contact surface with cap 10b not perpendicular to the axial direction XX'.
  • angle ⁇ is in the range of [70° - 88°], preferably in a range of [74° - 85°] and more preferably in a range of [75° - 80°].
  • angle ⁇ has a value of 78°.
  • the spring 30 exerts a pushing force to the pin 20 which is misaligned / biased versus the axial direction, then the pin 20 is tilted or tends to tilt into the hole 12 (as shown by the curved arrow on figure 1 ), so that there is lateral contact between the pin 20 and hole 12, thus providing a reliable and constant electric contact between pin 20 and hole 12. Micro cuts are avoided.
  • cap 10b having a slanted contact surface for spring 30 allows to install the spring 30 into the blind hole of the pin 20, so as to minimize the overall axial length of the connector, and allows to manufacture the pin 20 with standard machining process, for the blind hole, which can present an end with the standard conical and symmetric shape, typical from a drilling machining.
  • the cap 10b of figure 1 is press fitted into a corresponding hole of the body 10a, but has a shorter length, so that the left end of the spring 30 is self centred by the body 10a. Manufacturing of such cap 10b with its slanted ground surface 11 does not require complex tooling, and the assembly is cheap.
  • the spring pin connector according to the invention is simple to manufacture, presents a short axial length, still with a micro cuts protection and a long stroke for pin 20, which can easily compensate for dimensional tolerances of the electronic device into which it is installed. Also, for a given mated height, the stress in the spring is reduced, thereby enabling a larger number of compressions of the spring (mating cycles).
  • Figure 2 represents a second embodiment of a spring pin connector according to the invention.
  • the spring 30 contacts the ground surface 11 which is inclined or slanted to generate a misaligned pushing force and to tilt or bias the pin 20.
  • female housing 10' comprises a body 10'a which has a straight internal hole 12', and a cap 10'b which comprises a rear shoulder and rear pin, to provide another fixing interface for the connector.
  • Figures 3a - 3c represent various designs of spring pin connectors, in rest position (left view) and with pin fully pushed (right view).
  • Figure 3a represents a design where the cap has a bottom or rear flat surface, for being soldered onto a support.
  • Fig 3b represents a design where the cap has a bottom or rear shouldered surface with a rear pin for being introduced into a hole of the support, for "intrusive reflow soldering", also called “pin in paste” soldering.
  • Fig. 3c represents a design where the cap has a bottom or rear shouldered surface with a rear pin for being introduced into a through hole of a support and soldered thereafter.
  • the housing (cap, body part) and pin are machined from brass or other copper alloy or other conductive metals / alloys.
  • the parts are post-plated with any one of a variety of coatings for the purpose of good electrical contact and wear and corrosion resistance.
  • the spring is made from any one a variety of materials, such as stainless steel, Beryllium copper, high carbon steel such as music wire, or high-temperature alloys.
  • the spring pin connector has an effective length comprised in the range of [1.5 - 10] mm
  • the female housing has an outer diameter comprised in the range of [0.5 - 8] mm
  • the pin has an outer diameter comprised in the range of [0.25 - 6] mm
  • a stroke comprised in the range of [0.25 - 5] mm.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP18196333.1A 2018-09-24 2018-09-24 Federstiftstecker Pending EP3627630A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18196333.1A EP3627630A1 (de) 2018-09-24 2018-09-24 Federstiftstecker
PCT/EP2019/075490 WO2020064611A1 (en) 2018-09-24 2019-09-23 Spring pin connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18196333.1A EP3627630A1 (de) 2018-09-24 2018-09-24 Federstiftstecker

Publications (1)

Publication Number Publication Date
EP3627630A1 true EP3627630A1 (de) 2020-03-25

Family

ID=63683093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18196333.1A Pending EP3627630A1 (de) 2018-09-24 2018-09-24 Federstiftstecker

Country Status (2)

Country Link
EP (1) EP3627630A1 (de)
WO (1) WO2020064611A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115663506A (zh) * 2022-12-28 2023-01-31 深圳市康奈特电子有限公司 一种新能源电池防火连接器
WO2024110046A1 (de) * 2022-11-24 2024-05-30 Feinmetall Gmbh Federkontaktstift

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112982760B (zh) * 2021-03-15 2022-08-12 江苏固德威尔金属制品有限公司 一种分体式易装卸幕墙销钉

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7507110B1 (en) * 2008-03-25 2009-03-24 Cheng Uei Precision Industry Co., Ltd. Probe connector
US20110195616A1 (en) * 2010-02-10 2011-08-11 Yung-Yi Chen Spring connector
WO2017159155A1 (ja) 2016-03-18 2017-09-21 株式会社ヨコオ スプリングコネクタ
US9941627B2 (en) 2015-09-30 2018-04-10 Apple Inc. Magnetic surface contacts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10284158A (ja) * 1997-03-31 1998-10-23 Amp Japan Ltd 基板用電気コネクタ
JP3923889B2 (ja) * 2002-12-11 2007-06-06 シチズン電子株式会社 表面実装型スプリングコネクタの製造方法
CN2746547Y (zh) * 2004-07-30 2005-12-14 禾昌兴业股份有限公司 电池连接器顶针
US7798867B2 (en) * 2008-11-12 2010-09-21 Interconnect Devices, Inc. Environmentally sealed contact

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7507110B1 (en) * 2008-03-25 2009-03-24 Cheng Uei Precision Industry Co., Ltd. Probe connector
US20110195616A1 (en) * 2010-02-10 2011-08-11 Yung-Yi Chen Spring connector
US9941627B2 (en) 2015-09-30 2018-04-10 Apple Inc. Magnetic surface contacts
WO2017159155A1 (ja) 2016-03-18 2017-09-21 株式会社ヨコオ スプリングコネクタ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024110046A1 (de) * 2022-11-24 2024-05-30 Feinmetall Gmbh Federkontaktstift
CN115663506A (zh) * 2022-12-28 2023-01-31 深圳市康奈特电子有限公司 一种新能源电池防火连接器
CN115663506B (zh) * 2022-12-28 2023-03-31 深圳市康奈特电子有限公司 一种新能源电池防火连接器

Also Published As

Publication number Publication date
WO2020064611A1 (en) 2020-04-02

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