Nothing Special   »   [go: up one dir, main page]

WO2017060802A1 - Industrial electric plug - Google Patents

Industrial electric plug Download PDF

Info

Publication number
WO2017060802A1
WO2017060802A1 PCT/IB2016/055900 IB2016055900W WO2017060802A1 WO 2017060802 A1 WO2017060802 A1 WO 2017060802A1 IB 2016055900 W IB2016055900 W IB 2016055900W WO 2017060802 A1 WO2017060802 A1 WO 2017060802A1
Authority
WO
WIPO (PCT)
Prior art keywords
bushing
electric plug
industrial electric
longitudinal direction
main longitudinal
Prior art date
Application number
PCT/IB2016/055900
Other languages
French (fr)
Inventor
Mario VIZZI
Antonella DONNICOLA
Original Assignee
Vizzi Mario
Donnicola Antonella
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 Vizzi Mario, Donnicola Antonella filed Critical Vizzi Mario
Publication of WO2017060802A1 publication Critical patent/WO2017060802A1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64Means for preventing incorrect coupling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R29/00Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors

Definitions

  • the present invention relates to an industrial electric plug.
  • the present invention finds application in the field of refrigerated containers.
  • the term electric plug refers to a mechanical connector suitable to be inserted into a socket having a complementary shape.
  • the electric contacts of the plug are in the form of jacks suitable to be received in the corresponding cavities of the socket defining the respective contacts which are not exposed, as always in tension.
  • the contacts both of the plug and of the socket are housed in an insulating body made of resins chosen according to the values of dielectric strength, insulation, heat and impact resistance and their self-extinguishing characteristics.
  • the known industrial electric plugs are characterized by different voltage and power combination distinct from the position of the earthing contact, highlighted by a plastic projection also defined safety pin.
  • the earthing contact can be placed in one of the twelve different positions spaced by 30° intervals around the circle which encloses all the poles. The various positions are referred by looking at the socket from the front side: for example, the 6 o'clock position (180°) provides that both the safety pin and the earthing contact are oriented downwards.
  • the safety pin aligns with a corresponding recess in the socket, furthermore the earthing contact has a greater diameter with respect to the others, preventing the incorrect insertion of the plug. Therefore, for each pair of industrial plug/socket, a determined installation angle, defined by the mutual position of the earthing contact and the safety pin, is provided.
  • a determined installation angle defined by the mutual position of the earthing contact and the safety pin.
  • the industrial electric plug according to the invention comprises a hollow body which extends along a main longitudinal direction and a bushing having a substantially cylindrical conformation.
  • the bushing comprises the safety pin suitable to mate with a respective seat of an industrial socket.
  • the contact assembly is internally fixed to the body so that the respective contacts remain axially within the outline of the bushing.
  • means of axial retention of the bushing, with respect to the body and the contact assembly configured to axially lock the bushing on the body allowing the relative rotation around the main longitudinal direction to vary the position of the safety pin with respect to the contacts, are provided.
  • the means of axial retention are configured to operate by elastic deformation or by a snap to simplify and make the assembly of the bushing safe on the body.
  • the body has an abutment, preferably in the form of a internally sliding tooth to a sliding guide of the bushing delimited by two projections arranged, for example, at an angular distance of 90°.
  • the plug according to the invention allows the certain and repeatable definition of the angular extension of the relative rotation between bushing and body.
  • an abutment for example, having the form of a receiving seat suitable to receive the tooth to provide a sensory feedback to the user upon reaching the correct position and to stabilize such correct position.
  • the body has an internal shoulder defining an internal wall arranged perpendicularly to the main longitudinal direction from which the abutment (tooth) protrudes, so as to simplify the assembly phase.
  • the bushing has a shaped profile defining the sliding guide.
  • the bushing comprises a dragging element of a gasket arranged outside of the bushing to ensure the sealing of the plug.
  • the dragging element is arranged at an annular groove of the bushing which accommodates the gasket.
  • FIG. 1 shows a side view of an industrial electric plug according to the present invention
  • FIG. 2 shows a sectional view according to the line ll-ll of Figure 1 ;
  • Figure 3 shows a rear view of the electric plug of Figure 1 ;
  • FIG. 4 is a sectional view according to the line IV-IV of Figure 3;
  • FIG. 5-8 show perspective views of the industrial electric plug in two different configurations.
  • 1 refers to an industrial electric plug as a whole.
  • the industrial electric plug 1 comprises a hollow body 2 or housing extending along a main longitudinal direction 3 between two open ends 2a, 2b each defining an opening for accessing an internal compartment "V" of the body 2.
  • the internal and/or external profile of the body 2 may vary along the main longitudinal direction 3, as, e.g., illustrated in the attached figures.
  • the cross section of the body 2 may have increasing dimensions between the end 2a and the end 2b.
  • the reference number 4 illustrates retaining lugs which radially protrude from the body 2 towards the outside, preferably at two positions arranged at 90° relative to each other.
  • the body 2 has a threaded 5 and a hollow portion 6 for housing a gasket or O-ring.
  • the body 2 has, at the end 2b, a flange 7 which surrounds and delimits the access opening defined by the opened end 2b and extends radially therefrom.
  • the flange 7 has two notches 8 arranged in diametrically opposite positions of the flange itself.
  • the body 2 has a partition ring 9 which axially divides, without isolating, the two portions of the internal compartment "V".
  • Two threaded slots extend axially at the internal walls of the body 2.
  • the reference number 1 1 indicates an internal shoulder circumferentially arranged along the internal walls of the body 2 and defining a wall 12 arranged perpendicular to the main longitudinal direction 3.
  • an abutment protrudes, for example, having the shape of a tooth 13.
  • the reference number 14 indicates a circumferential rib extending from the internal walls of the compartment "V".
  • the industrial electric plug 1 comprises a bushing 15 having a substantially cylindrical conformation around the main longitudinal axis 3.
  • the bushing 15 extends between two ends 15a and 15b defining respective openings for accessing an internal compartment "V1 " which, in the assembled configuration with the body 2, forms an extension of the compartment "V".
  • the end 15a has, preferably along a radially external portion, a shaped profile 16 defining a sliding guide 17 defined by two projections 18a, 18b arranged, for example, at an angular distance of 90°.
  • an abutment is provided, for example having the shape of a receiving seat 19 suitable to receive the tooth 13 of the body 2.
  • the end 15a has, preferably along a radially external portion, a circumferential rib 20 which extends from the external walls of the bushing 15 and suitable to form, with the rib 14 of the body 2, means of axial retention of the bushing with respect to the body, in particular means of axial coupling operating by elastic deformation or by a snap.
  • Such means are configured to axially lock the bushing 15 on the body 2 allowing the relative rotation around the main longitudinal direction 3, as will be subsequently described.
  • the end 15b has, in a radially external position, a safety pin 21 for coupling with a respective seat of an industrial socket, not illustrated.
  • the reference number 22 refers to a dragging element, for example a radial extension, externally protruding from the bushing 15 and suitable to mate with a gasket 23 arranged outside of the bushing (15).
  • the dragging element 22 is arranged at an annular groove 24 of the bushing 15 which accommodates the gasket 23.
  • the industrial electric plug 1 further comprises a contact assembly 25 configured to be internally fixed to the body 2, for example by means of threaded connections insertable in the threaded slots 10.
  • the contact assembly 25 comprises, for example, three jacks 26a defining the respective contacts 26b, of greater diameter, defining an earthing contact.
  • the contact assembly 25 and the respective contacts 26a and 26b remain axially within the outline of the bushing 15 which can rotate with respect to the body 2 and the contact assembly 25, as will be subsequently described.
  • a ring having radial notches suitable to allow its assembly on the body 2 in cooperation with the respective notches 8 of the flange 7 and a cable-tie cap screwed on the threaded portion 5 of the body 2 are provided.
  • a cable-lock element is arranged in the compartment "V" on the cable-tie cap side.
  • the illustrated example corresponds to an industrial electric plug with three contacts 26a and an earthing contact 26b.
  • the position of the earthing contact 26b is indicated using, as reference, the position in which it is located in the lower position, also defined as 6 o'clock position. In such position, also the safety pin 21 is arranged below and aligned with the earthing contact 26b.
  • the industrial electric plug 1 appears as a conventional plug adaptable to different configurations thanks to the possibility of rotation of the bushing 15 with respect to the body 2 and the contact assembly 25.
  • the rotation is limited to an angle of 90° allowing the conversion from a plug with 6 o'clock configuration to a plug with 3 o'clock configuration, i.e., in which the earthing contact 26b is at 90° with respect to the safety pin 21 .
  • one of the two projections 18a, 18b is placed in contact with the tooth 13.
  • the further housing of the tooth 13 in the receiving seat 19 ensures a safe and well-defined placement, which achievement is detectable by the user.
  • the resistance of the tooth 13 is overcome in the receiving seat 19 so as the tooth itself can slide along the sliding guide 17 until its abutment against the other projections 18a, 18b.
  • the insertion of the tooth 13 in the respective receiving seat 19 warns the user about the achievement of the desired position.
  • the dragging element 22 drags the gasket 23 ensuring the sealing of the plug.
  • the ribs 14, 20 force the body and/or the bushing to deform and then to abut into the desired axial position in which they define a continuous internal compartment "V".

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Taps Or Cocks (AREA)

Abstract

An industrial electric plug (1) comprises a hollow body (2) or housing extending along a main longitudinal direction (3) between two open ends (2a, 2b) each defining an opening for accessing an internal compartment (V) of the body (2). A bushing 15 having a substantially cylindrical conformation around the main longitudinal direction (3) which extends between two ends (15a, 15b) defining respective openings for accessing an internal compartment (V1) which, in the assembled configuration with the body (2), forms an extension of the compartment (V). An end (15b) of the bushing (15) has, in a radially external position, a safety pin (21) suitable to mate with a respective seat of an industrial socket. A contact assembly (25) is internally fixed to the body (2) so that the respective contacts (26a, 26b) remain axially within the outline of the bushing (15). Means of axial retention of the bushing (15) with respect to the body (2) and the contact assembly (25) are configured to axially lock the bushing (15) on the body (2) allowing the relative rotation around the main longitudinal direction (3) to vary the position of the safety pin (21) with respect to the contacts (26a, 26b).

Description

DESCRIPTION
INDUSTRIAL ELECTRIC PLUG
The present invention relates to an industrial electric plug.
Preferably, moreover, the present invention finds application in the field of refrigerated containers.
As is known, the term electric plug refers to a mechanical connector suitable to be inserted into a socket having a complementary shape. The electric contacts of the plug are in the form of jacks suitable to be received in the corresponding cavities of the socket defining the respective contacts which are not exposed, as always in tension.
The contacts both of the plug and of the socket are housed in an insulating body made of resins chosen according to the values of dielectric strength, insulation, heat and impact resistance and their self-extinguishing characteristics.
The known industrial electric plugs are characterized by different voltage and power combination distinct from the position of the earthing contact, highlighted by a plastic projection also defined safety pin. The earthing contact can be placed in one of the twelve different positions spaced by 30° intervals around the circle which encloses all the poles. The various positions are referred by looking at the socket from the front side: for example, the 6 o'clock position (180°) provides that both the safety pin and the earthing contact are oriented downwards.
The safety pin aligns with a corresponding recess in the socket, furthermore the earthing contact has a greater diameter with respect to the others, preventing the incorrect insertion of the plug. Therefore, for each pair of industrial plug/socket, a determined installation angle, defined by the mutual position of the earthing contact and the safety pin, is provided. Currently, all the versions in accordance with the legislation, which must be selected according to the desired application, are available on the market. Industrial plugs suitable to two or more configurations of the electric sockets are not available. Therefore, it is an object of the present invention to provide an industrial electric plug which, with a simple structure and an intuitive operation, allows to adjust the installation angle to fit with different electric sockets. Another object of the present invention is to provide an industrial electric plug able to allow the user to perceive the correct achievement of a determined installation angle.
The mentioned technical task and the specified objects are substantially achieved by an industrial electric plug, including the technical specifications set out in one or more of the appended claims. The dependent claims correspond to different embodiments of the invention. In particular, the industrial electric plug according to the invention comprises a hollow body which extends along a main longitudinal direction and a bushing having a substantially cylindrical conformation. The bushing comprises the safety pin suitable to mate with a respective seat of an industrial socket. The contact assembly is internally fixed to the body so that the respective contacts remain axially within the outline of the bushing. Advantageously, means of axial retention of the bushing, with respect to the body and the contact assembly configured to axially lock the bushing on the body allowing the relative rotation around the main longitudinal direction to vary the position of the safety pin with respect to the contacts, are provided.
In this way, a simple and easy to use industrial electric plug is obtained to enable the adaptation to different electric sockets.
Preferably, the means of axial retention are configured to operate by elastic deformation or by a snap to simplify and make the assembly of the bushing safe on the body.
Preferably, the body has an abutment, preferably in the form of a internally sliding tooth to a sliding guide of the bushing delimited by two projections arranged, for example, at an angular distance of 90°. In this way, the plug according to the invention allows the certain and repeatable definition of the angular extension of the relative rotation between bushing and body. Preferably, at each of the two projection, it is provided an abutment, for example, having the form of a receiving seat suitable to receive the tooth to provide a sensory feedback to the user upon reaching the correct position and to stabilize such correct position.
Preferably, the body has an internal shoulder defining an internal wall arranged perpendicularly to the main longitudinal direction from which the abutment (tooth) protrudes, so as to simplify the assembly phase.
Preferably, the bushing has a shaped profile defining the sliding guide. Preferably, the bushing comprises a dragging element of a gasket arranged outside of the bushing to ensure the sealing of the plug. Preferably, the dragging element is arranged at an annular groove of the bushing which accommodates the gasket.
Further characteristics and advantages of the present invention will become more apparent from the description of an exemplary, but not exclusive, and therefore non-limiting preferred embodiment of an industrial plug:
Such description will be set forth hereinafter with reference to the accompanying drawings given only for illustrative purposes and not by way of limitation, in which:
- Figure 1 shows a side view of an industrial electric plug according to the present invention;
- Figure 2 shows a sectional view according to the line ll-ll of Figure 1 ;
- Figure 3 shows a rear view of the electric plug of Figure 1 ;
- Figure 4 is a sectional view according to the line IV-IV of Figure 3;
- Figures 5-8 show perspective views of the industrial electric plug in two different configurations.
With reference to the attached figures, 1 refers to an industrial electric plug as a whole.
The industrial electric plug 1 comprises a hollow body 2 or housing extending along a main longitudinal direction 3 between two open ends 2a, 2b each defining an opening for accessing an internal compartment "V" of the body 2. The internal and/or external profile of the body 2 may vary along the main longitudinal direction 3, as, e.g., illustrated in the attached figures. For example, the cross section of the body 2 may have increasing dimensions between the end 2a and the end 2b.
The reference number 4 illustrates retaining lugs which radially protrude from the body 2 towards the outside, preferably at two positions arranged at 90° relative to each other.
In accordance with a possible embodiment, for example illustrated in the attached figures, starting from the end 2a, externally the body 2 has a threaded 5 and a hollow portion 6 for housing a gasket or O-ring.
Furthermore, the body 2 has, at the end 2b, a flange 7 which surrounds and delimits the access opening defined by the opened end 2b and extends radially therefrom. The flange 7 has two notches 8 arranged in diametrically opposite positions of the flange itself.
Internally, the body 2 has a partition ring 9 which axially divides, without isolating, the two portions of the internal compartment "V".
Two threaded slots extend axially at the internal walls of the body 2.
The reference number 1 1 indicates an internal shoulder circumferentially arranged along the internal walls of the body 2 and defining a wall 12 arranged perpendicular to the main longitudinal direction 3.
From the walls 12 an abutment protrudes, for example, having the shape of a tooth 13.
The reference number 14 indicates a circumferential rib extending from the internal walls of the compartment "V".
Furthermore, the industrial electric plug 1 comprises a bushing 15 having a substantially cylindrical conformation around the main longitudinal axis 3. The bushing 15 extends between two ends 15a and 15b defining respective openings for accessing an internal compartment "V1 " which, in the assembled configuration with the body 2, forms an extension of the compartment "V". The end 15a has, preferably along a radially external portion, a shaped profile 16 defining a sliding guide 17 defined by two projections 18a, 18b arranged, for example, at an angular distance of 90°. Preferably, at each of the two projections 18a, 18b an abutment is provided, for example having the shape of a receiving seat 19 suitable to receive the tooth 13 of the body 2.
The end 15a has, preferably along a radially external portion, a circumferential rib 20 which extends from the external walls of the bushing 15 and suitable to form, with the rib 14 of the body 2, means of axial retention of the bushing with respect to the body, in particular means of axial coupling operating by elastic deformation or by a snap. Such means are configured to axially lock the bushing 15 on the body 2 allowing the relative rotation around the main longitudinal direction 3, as will be subsequently described.
The end 15b has, in a radially external position, a safety pin 21 for coupling with a respective seat of an industrial socket, not illustrated.
The reference number 22 refers to a dragging element, for example a radial extension, externally protruding from the bushing 15 and suitable to mate with a gasket 23 arranged outside of the bushing (15). Preferably, the dragging element 22 is arranged at an annular groove 24 of the bushing 15 which accommodates the gasket 23.
The industrial electric plug 1 further comprises a contact assembly 25 configured to be internally fixed to the body 2, for example by means of threaded connections insertable in the threaded slots 10. The contact assembly 25 comprises, for example, three jacks 26a defining the respective contacts 26b, of greater diameter, defining an earthing contact.
The contact assembly 25 and the respective contacts 26a and 26b remain axially within the outline of the bushing 15 which can rotate with respect to the body 2 and the contact assembly 25, as will be subsequently described.
At completion of the industrial electric plug 1 a ring, having radial notches suitable to allow its assembly on the body 2 in cooperation with the respective notches 8 of the flange 7 and a cable-tie cap screwed on the threaded portion 5 of the body 2 are provided. A cable-lock element is arranged in the compartment "V" on the cable-tie cap side.
The illustrated example corresponds to an industrial electric plug with three contacts 26a and an earthing contact 26b.
For the identification of the plug and the corresponding socket the position of the earthing contact 26b is indicated using, as reference, the position in which it is located in the lower position, also defined as 6 o'clock position. In such position, also the safety pin 21 is arranged below and aligned with the earthing contact 26b.
The industrial electric plug 1 according to the present invention appears as a conventional plug adaptable to different configurations thanks to the possibility of rotation of the bushing 15 with respect to the body 2 and the contact assembly 25. Preferably, the rotation is limited to an angle of 90° allowing the conversion from a plug with 6 o'clock configuration to a plug with 3 o'clock configuration, i.e., in which the earthing contact 26b is at 90° with respect to the safety pin 21 .
In the 6 o'clock configuration, one of the two projections 18a, 18b is placed in contact with the tooth 13. The further housing of the tooth 13 in the receiving seat 19 ensures a safe and well-defined placement, which achievement is detectable by the user.
By imposing the rotation of the bushing 15 with respect to the body 2 and the contact assembly 25, the resistance of the tooth 13 is overcome in the receiving seat 19 so as the tooth itself can slide along the sliding guide 17 until its abutment against the other projections 18a, 18b. The insertion of the tooth 13 in the respective receiving seat 19 warns the user about the achievement of the desired position.
In the rotation around the main longitudinal direction, the dragging element 22 drags the gasket 23 ensuring the sealing of the plug. In the assembly of the bushing 15 on the body 2, the ribs 14, 20 force the body and/or the bushing to deform and then to abut into the desired axial position in which they define a continuous internal compartment "V".

Claims

1. Industrial electric plug (1 ) comprising:
a hollow body (2) or housing extending along a main longitudinal direction (3) between two open ends (2a, 2b) each defining an opening for accessing an internal compartment (V) of the body (2),
a bushing (15) having a substantially cylindrical conformation around the main longitudinal direction (3) and extending between two ends (15a, 15b) defining respective openings for accessing an internal compartment (V1 ) which, in the assembled configuration with the body (2), forms an extension of the compartment (V), in which a free end (15b) of the bushing (15) has, in a radially external position, a safety pin (21 ) suitable to mate with a respective seat of an industrial socket,
a contact assembly (25) internally fixed to the body (2) so that the respective contacts (26a, 26b) remain axially within the outline of the bushing (15),
characterized in that it comprises means of axial retention of the bushing (15) with respect to the body (2) and the contact assembly (25), said means of axial retention being configured to axially lock the bushing (15) on the body (2) allowing the relative rotation around the main longitudinal direction (3) to vary the position of the safety pin (21 ) with respect to the contacts (26a, 26b).
2. Industrial electric plug (1 ) according to claim 1 , wherein said means of axial retention are configured to operate by elastic deformation or by a snap fit, for example comprising circumferential ribs (14, 20) of the body (2) and the bushing (15), respectively.
3. Industrial electric plug (1 ) according to claim 1 or 2, wherein said body (2) has an abutment, preferably having the shape of a tooth (13), for example axial, housed within a sliding guide (17) of the bushing (15) delimited by two projections (18a, 18b) arranged for example at an angular distance equal to 90°.
4. Industrial electric plug (1 ) according to claim 3, wherein, at each of the two projections (18a, 18b) an abutment is provided, for example having the shape of a receiving seat (19) adapted to receive the tooth (13) of the body (2).
5. Industrial electric plug (1 ) according to claim 3 or 4, wherein the body (2) has an internal shoulder (1 1 ) disposed circumferentially along the internal walls of the body itself, and defining a wall (12) arranged perpendicularly to the main longitudinal direction (3) from which said abutment, preferably having the shape of a tooth (13), protrudes.
6. Industrial electric plug (1 ) according to one or more of claims 3 to 5, wherein said bushing (15) has, at one end (15a), a shaped profile (16) defining said sliding guide (17).
7. Industrial electric plug (1 ) according to one or more of the preceding claims, wherein said bushing comprises a dragging element (22), for example a radial extension, externally protruding from the bushing itself and suitable to mate with a gasket (23) arranged outside of the bushing (15).
8. Industrial electric plug (1 ) according to claim 7, wherein said dragging element (22) is arranged at an annular groove (24) of the bushing (15) which accommodates the gasket (23).
PCT/IB2016/055900 2015-10-08 2016-10-03 Industrial electric plug WO2017060802A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB2015A004237A ITUB20154237A1 (en) 2015-10-08 2015-10-08 INDUSTRIAL ELECTRIC PLUG
IT102015000059462 2015-10-08

Publications (1)

Publication Number Publication Date
WO2017060802A1 true WO2017060802A1 (en) 2017-04-13

Family

ID=55273341

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/055900 WO2017060802A1 (en) 2015-10-08 2016-10-03 Industrial electric plug

Country Status (2)

Country Link
IT (1) ITUB20154237A1 (en)
WO (1) WO2017060802A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2018092B1 (en) * 2016-12-28 2018-07-06 Ab Trading & Consultancy B V Plug assembly for use with refrigerated shipping containers
CN112202016A (en) * 2020-09-28 2021-01-08 Oppo广东移动通信有限公司 Charging device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB324007A (en) * 1928-10-11 1930-01-13 Reyrolle A & Co Ltd Improvements in or relating to plug and socket connectors for electrical circuits
US3771108A (en) * 1971-04-08 1973-11-06 Bunker Ramo Presettable polarizing key for electrical connectors
US4472012A (en) * 1981-03-04 1984-09-18 Molex Incorporated Modularized universal pin and sleeve electrical connector
US4927374A (en) * 1986-12-12 1990-05-22 Amp Incorporated Modular electrical connector assembly
US5618097A (en) * 1995-08-30 1997-04-08 Osram Sylvania Inc. Electric lamp with a variably keyed based

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB324007A (en) * 1928-10-11 1930-01-13 Reyrolle A & Co Ltd Improvements in or relating to plug and socket connectors for electrical circuits
US3771108A (en) * 1971-04-08 1973-11-06 Bunker Ramo Presettable polarizing key for electrical connectors
US4472012A (en) * 1981-03-04 1984-09-18 Molex Incorporated Modularized universal pin and sleeve electrical connector
US4927374A (en) * 1986-12-12 1990-05-22 Amp Incorporated Modular electrical connector assembly
US5618097A (en) * 1995-08-30 1997-04-08 Osram Sylvania Inc. Electric lamp with a variably keyed based

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2018092B1 (en) * 2016-12-28 2018-07-06 Ab Trading & Consultancy B V Plug assembly for use with refrigerated shipping containers
CN112202016A (en) * 2020-09-28 2021-01-08 Oppo广东移动通信有限公司 Charging device

Also Published As

Publication number Publication date
ITUB20154237A1 (en) 2017-04-08

Similar Documents

Publication Publication Date Title
JP6638014B2 (en) Electrical connection device
EP2950401B1 (en) Electrical connector
US10465827B2 (en) Plug-in connector for fluid lines with inner adapter sleeve
EP2681810B1 (en) Connector
US20140368069A1 (en) Electric connector capable of selecting a type of engagement, and electric motor including the same
US8221161B2 (en) Break-away adapter
JP6571794B2 (en) Plug connection and plug connection set
US20060051999A1 (en) Connector element with quick screw connection
EP2741376B1 (en) Connector for preventing unlocking
US20160186792A1 (en) Connection assembly with bayonet locking of the connection elements
JP6329071B2 (en) Coaxial circular plug connector
US7628632B2 (en) Locking mechanism
KR20140116221A (en) Plug connection system for plug connectors
WO2017060802A1 (en) Industrial electric plug
US20150050845A1 (en) Plug connector with contact detent means
JP2018514917A5 (en)
CN113196582A (en) Circular plug connector with locking system
JP2010092862A (en) Easily-gripped coaxial connector element
CN112886338A (en) Plug-in connector
CN112513509B (en) Device for connecting two tubular objects
EP1405376B1 (en) Twist-lock connector
JP2019204778A (en) Driven element with overload coupler for electrical connector having drive device and electrical connector having such drive element
EP3306435B1 (en) Maneuver element incorporating locking means
EP1625641B1 (en) Coupling device for the contact block and the handle of an electrical connector
EP2290757B1 (en) Connector

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16801298

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16801298

Country of ref document: EP

Kind code of ref document: A1