WO2022218467A1 - Kontaktfederanordnung mit löseorgan - Google Patents
Kontaktfederanordnung mit löseorgan Download PDFInfo
- Publication number
- WO2022218467A1 WO2022218467A1 PCT/DE2022/100234 DE2022100234W WO2022218467A1 WO 2022218467 A1 WO2022218467 A1 WO 2022218467A1 DE 2022100234 W DE2022100234 W DE 2022100234W WO 2022218467 A1 WO2022218467 A1 WO 2022218467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact spring
- stop
- spring arrangement
- support wall
- cage
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 238000003780 insertion Methods 0.000 claims abstract description 15
- 230000037431 insertion Effects 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 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
- 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
- H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
- H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
-
- 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
Definitions
- the invention relates to a contact spring arrangement with a support structure that has a support wall made of a conductive material, a contact spring that has a base leg that is held stationary in relation to the support wall and a clamping leg that, together with the support wall, has a plug-in receptacle that tapers in the direction of insertion for a wire of a forms the electrical conductor, and with a release element, which is guided in a guide body so that it can be displaced in relation to the support wall in the insertion direction and has an actuating arm which, in a release position, engages on a flank of the clamping limb facing the plug-in receptacle and moves the clamping limb against the spring force in a position bent back against the base leg.
- the support wall may be part of a conductive structure, such as a power rail or connector contact.
- a stripped end of the core eg a copper core
- the end of the wire slides onto the flank of the clamping leg and deflects this clamping leg. Due to the elastic restoring force of the spring, a gripping edge formed at the free end of the clamping leg digs into the peripheral surface of the copper wire.
- the force exerted by the wire on the gripping edge will tend to pivot the clamping leg further towards the support wall and press even more firmly against the wire, so that the wire is held in position by itself .
- the release element is moved in the direction of insertion so that its actuating arm runs onto the edge of the clamping leg and bends it back. This releases the core of the conductor so that the conductor can be withdrawn from the socket.
- the object of the invention is to create a contact spring arrangement in which the contact spring is more reliably protected against overstretching.
- this object is achieved in that the supporting structure forms a stop which limits the range of movement of the release element in the insertion direction.
- the conventional support structures act directly on the contact spring and the actuating arm acts on the contact spring at a different point, if a high force is exerted on the release element, there can still be a large bending moment and thus an overstretching of the part of the contact spring. who is exposed to this bending moment.
- the bending moment exerted by the release element is limited in that the stop restricts the range of movement of the release element in such a way that excessive deflection of the spring cannot occur in the first place. Support structures that act directly on the spring are then not more required. At the same time, this simplifies the construction of the contact spring arrangement.
- FIG. 1 is a perspective exploded view of a contact spring assembly according to the invention
- Fig. 2 is a perspective view of a release member of
- FIG. 4 shows a view of a guide body and the release member from the direction of the arrows IV-IV in FIG. 3;
- FIG. 6 shows a view of the guide body and the release member from the direction of the arrows VI-VI in FIG. 5; 7 shows an axial section through the contact spring arrangement 5 in a maximum open state; and 8 is a view of the guide body and the release member from the direction of the arrows VIII-VIII in FIG. 7.
- the contact spring arrangement shown in FIG. 1 has a contact spring 10 made of metal and an electrically conductive support structure 12, which in the example shown forms a socket contact 14 and a cage 16 axially adjoining it, which is also referred to as a busbar.
- the contact spring 10 has a clamping leg 18 and a base leg 20 which is connected to the clamping leg 18 via a U-bend and merges into a flat holding leg 22 at the opposite end.
- the contact spring 10 With its holding leg 22, the contact spring 10 is held on the cage 16 in such a way that the clamping leg 18 projects obliquely into the interior of the cage and forms a plug-in receptacle 26 for an electrical conductor 28 (FIG. 5) with a support wall 24 of the cage opposite the contact spring. which is mechanically fixed in the cage and electrically connected to the support structure 12 in this way.
- the conductor 28, for example a copper wire of a cable 29, is clamped between the clamping leg 18 and the support wall 24 and, since the clamping leg grips the conductor at an angle, the conductor is self-lockingly fixed in the cage when a tensile force acts on the conductor in the pull-out direction 28 works.
- the cage 16 On the side opposite the support wall 24, the cage 16 forms a receiving shaft 30 which extends in the direction of insertion of the plug-in receptacle 24 and into which the fork-shaped holding leg 22 of the contact spring 10 is inserted from above in FIG.
- the receiving shaft 30 is formed by two parallel grooves in the outer surfaces of the cage 16, which are delimited by a bracket 32 on the side facing away from the plug-in receptacle.
- This console is connected to the main part of the cage 16 only via a web 34 which extends through a slot 36 between the fork arms of the Holding leg 22 extends.
- the contact spring can be fixed to the supporting structure in any suitable manner, for example by riveting.
- the fork arms of the holding leg 22 each form, in the region of their free end, two latching lugs 38 directed towards one another, which engage under the web 34 and thus fix the holding leg 22 in a latching manner in the receiving shaft 30 .
- the contact spring arrangement forms a so-called push-in contact, in which the conductor clamped between the supporting wall 24 and the clamping leg 18 is self-lockingly secured in the clamping position.
- a special release element 40 is therefore provided, which can be displaced in the direction parallel to the insertion direction defined by the plug-in receptacle 26 (vertical in the drawing) and has an actuating arm 42, which has two fork arms and a spring contact bar 56 connecting the fork arms at the end owns.
- the release element is moved downwards, the spring contact bar 56 runs onto the clamping leg 18 of the contact spring and bends this clamping leg 18 back towards the base leg 20 so that the conductor 28 is released.
- the release member 40 has a cuboid sliding body 44 which is slidably guided in a guide shaft 46 of a guide body 48 .
- Formed on two opposite walls of the receiving shaft 46 are two wedge-shaped locking springs or locking lugs 50 which taper downwards and which engage in two receiving recesses 52 in the side walls of the sliding body 44 in the assembled state.
- Each receiving recess 52 is delimited in the direction transverse to the sliding direction by a fixing web 54 which runs at a distance from a lateral edge of the associated locking lug 50 .
- the actuating arm 42 has the two said fork arms which project from the lower end of the sliding body 44 and which are flush with the side walls of the cage 16 and engage over the contact spring 10 in the manner of a yoke.
- the fork arms are connected by the spring contact bar 56 which extends transversely across the clamping leg 18 of the contact spring and is thus able to exert a bending moment on the clamping leg.
- the actuating arm 42 is angled at an angle relative to the sliding body 44 and thus emerges downwards out of the cross section of the guide shaft 46 and engages behind an undercut 58 formed on the guide body 48. This limits the range of motion of the release member 40 upwards in FIG.
- a tool handle 60 in the form of a slot for a screwdriver blade, with which the release element 40 can be pushed deeper into the guide shaft 46 against the force of the contact spring 10 .
- the guide body 48 is made of electrically insulating material and forms a cable guide 62 running parallel to the guide shaft 46 for the conductor 28 that is to be contacted by the contact spring 10 .
- the release element 40 is inserted from below into the guide shaft 46 in a linear movement parallel to the insertion direction of the plug-in receptacle 26 .
- the wedge-shaped locking lugs 50 or the walls that support them are temporarily elastically deformed until the locking lugs engage in the receiving recesses 52 .
- the release element is then held on the guide body 48 so that it can move but cannot be lost.
- the support structure 12 and the guide body 48 are then connected to one another by a connecting means, which is not shown here, so that the plug-in receptacle 26 with the Cable guide 62 is aligned and directly connected to this. At the same time, this ensures that the release element 40 assumes the correct position relative to the contact spring 10 in the plane transverse to the direction of insertion.
- Fig. 3 the contact spring arrangement (without the socket contact) is shown in the assembled state, although for reasons of clarity the contour of the release member 40 is only indicated in phantom. Only the spring contact bar 56 is shown in section.
- the spring contact bar 56 rests loosely on the clamping leg 18 of the contact spring, so that the contact spring rests with its free end on the support wall 24 under slight tension.
- the clamping leg 18 falls obliquely towards the support wall 24 and delimits the plug-in receptacle 26 both to the side and to the bottom.
- the latching lugs 50 lie with play both upwards and downwards in the receiving recesses 52, as can also be seen in the front view in FIG.
- the side walls of the cage 16 have a stepped contour at the upper end and thus form a vertical guide 64 and a stop 66 for the fork arms of the actuating arm 42.
- the stop 66 limits the movement of the release member 40 downwards.
- the detents 50 are not involved in limiting this movement play and are therefore not loaded.
- Fig. 5 shows the contact spring arrangement in a state in which the conductor 28 has been inserted through the cable guide of the guide body 48 and into the socket 26 and the clamping leg 18 of the Contact spring 10 has bent back.
- the contact spring 10 is prevented from moving downward at the latest when the web 34 has reached the upper end of the slot 36 .
- the clamping leg 18 claws with its lower edge in FIG. 5 into the peripheral wall of the copper wire. If an attempt is now made to withdraw the conductor 28 upwards, the clamping leg 18 will have a tendency to pivot upwards and thereby further narrow the socket, so that the conductor is held in the clamped position in a self-locking manner.
- the release member 40 is shown in its maximum raised position in FIG. 5 for purposes of illustration. A further upward movement is prevented by the actuating arm 42 resting against the undercut 58 . In contrast, the latching lugs 50 still have a certain distance from the lower edges of the receiving recesses in this position (see also FIG. 6).
- FIG. 7 and 8 show the state in which the conductor 28 has been pulled out again and the release member 40 has reached its lowest end position in which the stop edges 67 rest against the stop 66 at the ends of the fork arms of the actuating arm.
- the range of motion of the release element 40 is limited in this way in such a way that excessive bending and thus overstretching and weakening of the contact spring 10 is reliably prevented.
- the clamping leg 18 of the contact spring 5 forms a hump 68 at the point at which the spring contact bar 56 acts on the clamping leg in Fig. 7.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/282,521 US20240145946A1 (en) | 2021-04-16 | 2022-03-28 | Contact spring arrangement with release member |
EP22716323.5A EP4331054A1 (de) | 2021-04-16 | 2022-03-28 | Kontaktfederanordnung mit löseorgan |
KR1020237038997A KR20230171973A (ko) | 2021-04-16 | 2022-03-28 | 릴리스 부재를 구비한 접촉 스프링 장치 |
CN202280028675.XA CN117242646A (zh) | 2021-04-16 | 2022-03-28 | 具有释放机构的接触弹簧组件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021109581.6A DE102021109581A1 (de) | 2021-04-16 | 2021-04-16 | Kontaktfederanordnung mit Löseorgan |
DE102021109581.6 | 2021-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022218467A1 true WO2022218467A1 (de) | 2022-10-20 |
Family
ID=81308406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2022/100234 WO2022218467A1 (de) | 2021-04-16 | 2022-03-28 | Kontaktfederanordnung mit löseorgan |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240145946A1 (de) |
EP (1) | EP4331054A1 (de) |
KR (1) | KR20230171973A (de) |
CN (1) | CN117242646A (de) |
DE (1) | DE102021109581A1 (de) |
WO (1) | WO2022218467A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117791188A (zh) * | 2024-02-26 | 2024-03-29 | 福州速易联电气有限公司 | 一种紧凑型重载连接器 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006009460U1 (de) | 2005-10-29 | 2007-03-15 | Weidmüller Interface GmbH & Co. KG | Anschlussvorrichtung für Leiter |
DE202012103314U1 (de) | 2012-08-30 | 2013-12-02 | Weidmüller Interface GmbH & Co. KG | Anschlussvorrichtung für einen Leiter |
EP3116065A1 (de) | 2015-07-07 | 2017-01-11 | TE Connectivity Germany GmbH | Halter für einsteckbare klammer, vorrichtung mit einsteckbarer klammer und elektrisches verbindungselement |
DE102017106720A1 (de) | 2017-03-29 | 2018-10-04 | Phoenix Contact Gmbh & Co. Kg | Kompakte Leiteranschlussklemme |
US10297930B2 (en) | 2016-06-20 | 2019-05-21 | Switchlab Inc. | Electrical contact limiter structure of wire connection terminal |
DE202019101246U1 (de) * | 2018-03-13 | 2019-06-14 | Weidmüller Interface GmbH & Co. KG | Federkraftklemme für Leiter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20205821U1 (de) | 2002-04-12 | 2003-08-21 | Weidmueller Interface | Anschlußvorrichtung für Leiter |
DE102020122135A1 (de) | 2019-09-12 | 2021-03-18 | Phoenix Contact Gmbh & Co. Kg | Anschlussanordnung, Steckverbinder und elektronisches Gerät |
DE102020123141A1 (de) | 2019-09-23 | 2021-03-25 | Phoenix Contact Gmbh & Co. Kg | Federkraftklemme mit Betätigungselement |
-
2021
- 2021-04-16 DE DE102021109581.6A patent/DE102021109581A1/de active Pending
-
2022
- 2022-03-28 US US18/282,521 patent/US20240145946A1/en active Pending
- 2022-03-28 KR KR1020237038997A patent/KR20230171973A/ko unknown
- 2022-03-28 CN CN202280028675.XA patent/CN117242646A/zh active Pending
- 2022-03-28 EP EP22716323.5A patent/EP4331054A1/de active Pending
- 2022-03-28 WO PCT/DE2022/100234 patent/WO2022218467A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006009460U1 (de) | 2005-10-29 | 2007-03-15 | Weidmüller Interface GmbH & Co. KG | Anschlussvorrichtung für Leiter |
DE202012103314U1 (de) | 2012-08-30 | 2013-12-02 | Weidmüller Interface GmbH & Co. KG | Anschlussvorrichtung für einen Leiter |
EP3116065A1 (de) | 2015-07-07 | 2017-01-11 | TE Connectivity Germany GmbH | Halter für einsteckbare klammer, vorrichtung mit einsteckbarer klammer und elektrisches verbindungselement |
US10297930B2 (en) | 2016-06-20 | 2019-05-21 | Switchlab Inc. | Electrical contact limiter structure of wire connection terminal |
DE102017106720A1 (de) | 2017-03-29 | 2018-10-04 | Phoenix Contact Gmbh & Co. Kg | Kompakte Leiteranschlussklemme |
DE202019101246U1 (de) * | 2018-03-13 | 2019-06-14 | Weidmüller Interface GmbH & Co. KG | Federkraftklemme für Leiter |
Also Published As
Publication number | Publication date |
---|---|
CN117242646A (zh) | 2023-12-15 |
DE102021109581A1 (de) | 2022-10-20 |
EP4331054A1 (de) | 2024-03-06 |
US20240145946A1 (en) | 2024-05-02 |
KR20230171973A (ko) | 2023-12-21 |
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