EP3763002A1 - Dispositif électrique enfichable - Google Patents

Dispositif électrique enfichable

Info

Publication number
EP3763002A1
EP3763002A1 EP19711813.6A EP19711813A EP3763002A1 EP 3763002 A1 EP3763002 A1 EP 3763002A1 EP 19711813 A EP19711813 A EP 19711813A EP 3763002 A1 EP3763002 A1 EP 3763002A1
Authority
EP
European Patent Office
Prior art keywords
plug
socket device
locking
pin
locking pin
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
EP19711813.6A
Other languages
German (de)
English (en)
Inventor
Reiner Naumann
Lars Wischgoll
Toni Ott
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.)
Eaton Intelligent Power Ltd
Original Assignee
Eaton Intelligent Power Ltd
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 Eaton Intelligent Power Ltd filed Critical Eaton Intelligent Power Ltd
Publication of EP3763002A1 publication Critical patent/EP3763002A1/fr
Pending legal-status Critical Current

Links

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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/71—Contact members of coupling parts operating as switch, e.g. linear or rotational movement required after mechanical engagement of coupling part to establish electrical connection
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/527—Flameproof cases
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • the invention relates to an electrical plug-and-socket device for use in haz- ardous areas, comprising a plug part and a socket part having at least one outer housing and an inner part rotatable relatively thereto, wherein a lock- ing pin is longitudinally movably mounted in the inner part.
  • plug-and-socket devices are, for example, known from EP 1344 286 B1 or EP 1208 619 B1 .
  • the previously known inner part is mounted rotata- bly between the off position and the on position in the socket part.
  • the lock- ing pin is movably mounted between a blocking position (pushed in) and a release position (projecting from the inner part). When the locking pin is in the release position, the inner part can be turned between the off position and the on position. This turning takes place via the inserted plug part.
  • the plug-and-socket device is accordingly de-energized prior to removal of the plug part since the plug part should only be removed when a turn into the off position was previously carried out.
  • the locking pin moreover comprises an adapter end, which is received by a corresponding adapter recess in the plug part if the plug part and the socket part match. If the adapter recess in the plug part does not match the adapt- er end of the locking pin, the locking pin will be pressed into the inner part.
  • the invention is based on the aim of improving an electrical plug-and-socket device of the aforementioned type such that it easily allows direct switching off of the assigned load and that various loads with other possibilities for switching on and off can also possibly be switched by the same plug-and-socket device.
  • the invention is in particular characterized in that the locking pin, at an engagement end opposite its adapter end, is engaged with a switching pin for switching on or off.
  • a switching pin for switching on or off.
  • the load is directly switched on and off in this way, wherein this can take place in addition to de-energizing the electrical plug-and-socket device in accordance with the aforementioned European patent specifications. This can, where applicable, also take place at differ ent times so that the load is switched on and off first, after which the electri cal plug-and-socket device is de-energized.
  • the load can be ar- ranged in a rear switch part and the switching pin can project from the rear switch part toward the locking pin.
  • the rear switch part and the remaining socket part can be releasably connected to each other so that the rear switch part together with the respective load can be exchanged.
  • the rear switch part can, at its front end which faces the inner part, be covered by a cover.
  • the socket part is generally supplied with electricity from the rear side so that an electrical connection can be routed through the rear switch part and cover toward the inner part, for example.
  • contact element openings and a switching pin opening are formed in the cover.
  • the contact element openings serve the insertion or through-routing of corresponding contact elements.
  • the electrical plug-and-socket device is suit- able for hazardous areas, it is advantageous in this respect if the contact ele- ment openings and the switching pin opening are designed to be breakdown- safe when both the contact elements and the switching pin are inserted.
  • the further electrical connection can then, for example, be made such that the contact elements are electrically connected to female connectors for wrap pins arranged in the inner part.
  • the cover can be screwed to the rear switch part, forming spark-breakdown-safe gaps.
  • gluing or welding can be effected by friction welding. In this case, this would also result in a correspond- ing protection class for hazardous areas, e.g., protection class Ex-d.
  • a locking insert which comprises a rotation guide for the inner part and a locking device for the locking pin can be arranged between the inner part and the cover.
  • the locking device in particular prevents turning of the locking pin and thus of the plug inner part (see the aforementioned publications) so that de-energizing the electrical plug-and-socket device or switching the load on or off is not pos- sible. Only when the corresponding adapter recess of the plug part matches the adapter end of the locking pin will no locking of the locking pin occur and he plug inner part be able to be turned relatively to the outer housing.
  • the rotation guide be designed as a guide wall, as guide wall sections, or even as guide walls pro- jecting toward the inner part.
  • the guide wall, guide wall sections or guide walls are engaged with guide grooves and/or guide recesses on the inner part so that a relative turn between the inner part and the locking insert is possible.
  • a relatively simply structured and safely functioning locking device can re- suit when it comprises a pin receptacle with at least one locking recess which is open toward the locking pin and in which a locking projection pro- jecting substantially radially on the locking pin engages in a torque-proof manner when the locking pin is moved axially toward the locking insert.
  • the locking projection engages with the locking recess so that the locking pin is disposed in a torque-proof manner even if it can, where appropriate, be moved further axially in the locking insert.
  • the locking pin and the switching pin are axially movably engaged with each other. This means that when the locking pin is not changed in its position by the plug part, i.e., is not moved axially, an engagement between the locking pin and the switching pin exists in order to turn the switching pin for switching the load on or off when the inner part and the locking pin are turned relatively to the outer housing. If the locking pin is axially moved by a plug part not matching the socket part, the engagement with the switching pin will persist. However, the load cannot then be switched on or off since the locking pin is held in a torque-proof manner in the locking insert and a relative rotation of the inner part relative to the outer housing is not possible.
  • the switching pin In order to make a corresponding engagement between the locking pin and the switching pin possible in a simple manner, it is conceivable for the switching pin to comprise at its connecting end an insertion slot in which the engagement end of the locking pin engages axially movably, wherein, in addition to the insertion slot, at least one slot opening is formed, in which an insertion projection engages axially movably at the engagement end.
  • several slot openings be formed, in which a corresponding number of insertion pro- jections on the engagement end of the locking pin engage.
  • the contact elements may be connected via an electrical connection to the plug contacts that can be inserted at the rear end of the rear switch part into plug contact openings, forming a spark-ignition-safe gap.
  • the gap can also be glued together.
  • the gap in this case satisfies spark protection class Ex-d.
  • the electrical connections can take the form of electrical cables or the like.
  • the plug contact openings are guided through the rear end in order to connect up electrical lines at the socket part or rear switch part from outside.
  • spark-breakdown-safe gaps can correspondingly be formed between the plug contact openings and the inserted plug contacts.
  • Such a load is, for example, an industrial switch, which can be used via ad- ditional plug contacts or plug lugs in the plug-and-socket device in a corre- sponding protection class, such as Ex-d.
  • the plug contacts/lugs are used for electrical connection.
  • Figure 1 A perspective plan view of a plug-and-socket device according to the invention, comprising a plug part and a socket part;
  • Figure 2 An exploded view of a socket part according to the invention in a lateral view
  • Figure 3 The socket part according to Figure 2 in a longitudinal section and assembled
  • Figure 4 An enlarged view of a contact element.
  • FIG 1 is a perspective view of an exemplary embodiment of an electrical plug- and-socket device 1 viewed obliquely from the front.
  • This device comprises a plug part 2 and a socket part 3. They are shown in Figure 1 in an arrangement connected to each other.
  • the plug part 2 has in its front end an opening for a cable not shown. This cable is inserted into the plug part 2 and connected there to corresponding, in particular pin-shaped, plug contacts.
  • the plug part 2 and socket part 3 are locked via a corresponding fastening device, which in the ex- emplary embodiment shown takes the form of a bayonet coupling.
  • a relative rotation of the plug part and the socket part about an appropriate angle of rotation takes place in order to both fasten the plug part 2 in the socket part 3 and correspondingly switch a load in a rear switch part 11 vis- ible at the rear end of the socket part 3.
  • This angle of rotation is, for exam- pie, between 20° and 120°, preferably between 40° and 100°, and particu- larly preferably between 60° and 90°.
  • a rotational adjustment mark can be provided on a front end of the socket part or even on the plug part.
  • This rotational adjustment mark may also comprise an end stop, which, for example, defines the locking position or the on position of the plug part relative to the socket part.
  • the socket part 3 according to Figure 1 is open at its front end, wherein a corresponding cover plate 37 is arranged laterally next to the socket part 3.
  • Figure 2 shows the socket part 3 of Figure 1 in a lateral exploded view.
  • Female connectors (not shown; see Fig ure 3), into which the corresponding plug pins are inserted when the plug part 2 is inserted into the socket part 3, are arranged in this inner part 5.
  • a locking pin 6 is mounted, which in Figure 2 is shown separately between the outer housing 4 and a locking in- sert 19.
  • the locking pin 6 comprises an adapter end 7, which projects from the inner part 5 toward the plug part 2.
  • a fitting adapter recess in the plug part 2 is generally placed onto this adapter end 7.
  • the locking pin At its engagement end 8 oppo- site the adapter end 7, the locking pin comprises laterally projecting insertion projections 31 , which project from a substantially centrally arranged insertion projection 38 extending in the axial direction.
  • the locking insert 19 has a central opening, through which at least the engage- ment end 8 of the locking pin 6 is guided toward the switching pin 9.
  • the switch- ing pin 9 comprises a connecting end 29.
  • an insertion slot 28 for receiving the insertion projection 38 is formed approximately centrally.
  • at least two slot openings 30 in which the insertion projections 31 engage are arranged laterally next to the insertion slot.
  • the engagement end 8 and the connecting end 29 are axially movably connected to each other.
  • the switching pin 9 At its end opposite the connecting end 29, the switching pin 9 has an inser- tion projection 38.
  • the switching pin 9 has a projec- tion 39, which has an angular cross-section and can be inserted into a cor- responding receptacle 40 on the load 10.
  • a cover 13 is arranged, which can be placed onto a corresponding front end 12 of a rear switch part 11 or be inserted thereinto.
  • the load 10 is arranged in the rear switch part 11 (see also Figure 3) and the correspond- ing front end 12 is closed by the cover 13.
  • Contact elements 16 projecting from the load 10 are received by corresponding contact element openings 14 in the cover 13, wherein a switching pin opening 15 for inserting or guid- ing through the switching pin 9 is furthermore formed in the cover.
  • the load 10 On its rear side facing away from the cover 13, the load 10 has a number of plug contacts 33, which can be inserted into corresponding plug contact openings 35 (see Figure 3) at the rear end 34 of the rear switch part 11 . These plug contacts 33 serve to connect electrical connecting lines in the region of the rear end 34.
  • the contact elements 16 of the load 10 are connected to the plug contacts 33 via cable-shaped electrical connections 32.
  • the load is an industrial plug, which can be arranged in the form of lugs in the manner of spark protection class Ex-d in the plug-and-socket device via the contact elements 16 and connections 32.
  • Figure 3 shows in a longitudinal section the corresponding individual parts according to Figure 2 when assembled.
  • FIG. 3 Visible in Figure 3 is the inner part 5 which is rotatably mounted in the outer housing 4 and in which a number of female connectors 17 are arranged.
  • the number of female connectors may vary depending on the plug-and- socket device used, wherein three-pin, five-pin, or even differently pinned plug-and-socket devices are possible. These plug-and-socket devices gen- erally serve to supply a load or the like with 20 to 100 A.
  • the inner part 5 At its end facing the locking insert 19, the inner part 5 comprises a series of guide grooves 23 or guide recesses 24. These grooves or recesses engage in or abut against the corresponding guide walls 22, wherein these guide walls 22 are part of a rotation guide 20. By means of this rotation guide 20, the inner part 5 is rotatably mounted relative to the locking insert 19.
  • the locking pin 6 projects from the inner part 5 and engages there with a locking device 21 of the locking insert 19 and is accordingly disposed in a pin receptacle 25 and also guided through toward the switching pin 9.
  • the corresponding engagement takes place (see also Figure 2) of the engagement end 8 with the insertion projection 31 and insertion projection 38 as well as connecting end 29 of the switching pin 9 (see insertion slot 28 and slot openings 30).
  • the corresponding contact elements 16 are guided through contact element openings 14 in the cover 13 and, together with them, form spark- breakdown-safe gaps 18. This also analogously applies to the switching pin 9, which is disposed in the corresponding switching pin opening 15 of the cover 13, forming spark-breakdown-safe gaps 18.
  • the load 10 is arranged in the rear switch part 11 and, by means of its re- ceptacle 40, connected to the insertion projection 38 of the switching pin 9 (see also Figure 2).
  • the corresponding contact elements 16 are connected by means of the cable-shaped electrical connection 32 to the plug contacts 33, which are in turn inserted into the corresponding plug contact openings
  • Figure 4 shows an enlarged view of the insertion of the plug contact 33 into the plug contact openings 35, wherein in this regard the corresponding gap
  • the result is a plug-and-socket device 1 , and in particular a socket part 3, which is structured to be explosion-safe and comprises appropriate spark-breakdown-safe gaps 18 or 36 at several points.
  • the locking pin 6 is axially movably mounted in the inner part 5 so that in case of a matching plug part 2 (in this respect see in particular adapter end 7), the locking pin 6 remains unmoved axially in the inner part 5 and, when the inner part 5 is subsequently turned relatively to the outer housing 4 by means of the plug part 2, the locking pin 6 turns the switching pin 9, which, via its connection to the load 10, switches said load on or off.
  • the locking pin 6 will be moved longitudinally toward the rear switch part 11. As a result of this longitudinal movement, the locking projections 27 en- gage with the corresponding locking recesses 26 of the locking insert 19 so that the locking pin 6 is held in a torque-proof manner by the locking insert 19. This makes switching the load 10 on or off impossible on the one hand and on the other hand also prevents energizing or de-energizing according to the aforementioned prior art.
  • the corresponding gaps can be glued, friction welded, or formed in another manner in order to comply with spark protection class Ex-d.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un dispositif électrique enfichable (1) qui est utilisé dans des zones dangereuses et comprenant une partie fiche (2) et une partie douille (3). La partie douille comprend au moins un boîtier externe (4) et une partie interne (5) pouvant tourner par rapport à celui-ci. Une broche de verrouillage (6) est montée de façon mobile longitudinalement dans la partie interne. Afin d'améliorer un tel dispositif électrique enfichable de sorte qu'il permette de manière simple de mettre sous tension directement une charge assignée et de telle sorte que diverses charges avec d'autres possibilités de mise sous tension et hors tension peuvent si nécessaire être commutés par le même dispositif enfichable, une broche de verrouillage pénètre au niveau d'une extrémité d'insertion (8) opposée à son extrémité d'adaptateur (7) avec une broche de commutation (9) pour mettre sous tension ou hors tension la charge (10).
EP19711813.6A 2018-03-09 2019-03-08 Dispositif électrique enfichable Pending EP3763002A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018105510.2A DE102018105510A1 (de) 2018-03-09 2018-03-09 Elektrische Steckvorrichtung
PCT/EP2019/025064 WO2019170295A1 (fr) 2018-03-09 2019-03-08 Dispositif électrique enfichable

Publications (1)

Publication Number Publication Date
EP3763002A1 true EP3763002A1 (fr) 2021-01-13

Family

ID=65817956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19711813.6A Pending EP3763002A1 (fr) 2018-03-09 2019-03-08 Dispositif électrique enfichable

Country Status (5)

Country Link
EP (1) EP3763002A1 (fr)
CN (1) CN111971858B (fr)
DE (1) DE102018105510A1 (fr)
SG (1) SG11202008757PA (fr)
WO (1) WO2019170295A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020100655A1 (de) 2020-01-14 2021-07-15 Eaton Intelligent Power Limited Elektrische Steckdose und Schalter
DE102021126433B3 (de) * 2021-10-12 2022-10-13 HPF High Performance Facility GmbH Installationselement für elektrische Anschlusseinheiten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096432A (en) * 1986-06-20 1992-03-17 Cullen John P Electric power socket

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5795168A (en) * 1996-02-16 1998-08-18 Duhe; Jerry R. Protective grounding electrical receptacle with repositional plug acceptors
DE20021374U1 (de) 2000-12-18 2002-04-25 CEAG Sicherheitstechnik GmbH, 59494 Soest Elektrische Steckdose
US7066758B2 (en) * 1999-08-31 2006-06-27 Cooper Crouse-Hinds Gmbh Electrical socket
DE29915263U1 (de) 1999-08-31 2001-01-18 CEAG Sicherheitstechnik GmbH, 59494 Soest Elektrische Steckvorrichtung
CN2862391Y (zh) * 2005-12-02 2007-01-24 傅炳生 具有开关和锁控功能的防触电安全插座
CN102222849B (zh) * 2010-04-15 2013-05-22 韩剑桦 防爆电连接装置及其插头、插座
CN103050829B (zh) * 2012-12-18 2016-03-02 中航光电科技股份有限公司 耐环境插座及使用该插座的电连接器组件
FR3011126B1 (fr) * 2013-09-23 2016-12-09 Commissariat Energie Atomique Module photovoltaique a connectique amelioree

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096432A (en) * 1986-06-20 1992-03-17 Cullen John P Electric power socket

Also Published As

Publication number Publication date
CN111971858B (zh) 2023-03-31
DE102018105510A1 (de) 2019-09-12
CN111971858A (zh) 2020-11-20
WO2019170295A1 (fr) 2019-09-12
SG11202008757PA (en) 2020-10-29

Similar Documents

Publication Publication Date Title
US8382493B2 (en) Three-pole adapter set with a plug part and a socket part which may be plugged in the plug part
KR101015494B1 (ko) 전기 어댑터
US6767245B2 (en) Modular GFCI receptacle
US7575467B2 (en) Electrically safe receptacle
US20110028011A1 (en) Tamper-resistant electrical wiring device system
US7172451B1 (en) Automatic locking electrical outlet
KR102245537B1 (ko) 셔터를 구비한 전기 소켓 커넥터
JP6793190B2 (ja) 小型連動型電気ソケット
CA2329946A1 (fr) Prise et fiche electrique ameliorees
CN101789554B (zh) 插头组件、连接插头和转换插头
US11409050B2 (en) Plug-in connection
WO2019170295A1 (fr) Dispositif électrique enfichable
KR20160093599A (ko) 전기 모듈
US10468833B1 (en) Outlet ground prong power switch and adapter
FR2921207A1 (fr) Adaptateur de raccordement
KR101912897B1 (ko) 플러그 단자핀 용 안전 모듈이 구비된 매립형 콘센트
JP5330948B2 (ja) 差込プラグ
CN111989830B (zh) 电连接器
GB2264402A (en) Two-component lampholder
GB2463688A (en) Locking plugs and the like into a three pin electrical socket
KR200222539Y1 (ko) 안전형 플러그 리셉터클
WO2003105287A1 (fr) Adaptateur multiprise
EP3325306B1 (fr) Bornier masse/terre multi-positions pour prises électriques
CN103563184B (zh) 用于建立和断开插件和配合插件之间的连接的装置
WO2019016712A1 (fr) Douille électrique avec commutateur

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200925

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220725

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230521

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED