WO1995034109A1 - Dispositif mecanique de securite pour la transmission de courant electrique - Google Patents
Dispositif mecanique de securite pour la transmission de courant electrique Download PDFInfo
- Publication number
- WO1995034109A1 WO1995034109A1 PCT/FR1995/000714 FR9500714W WO9534109A1 WO 1995034109 A1 WO1995034109 A1 WO 1995034109A1 FR 9500714 W FR9500714 W FR 9500714W WO 9534109 A1 WO9534109 A1 WO 9534109A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- socket
- ejection
- carriage
- mobile
- trigger
- Prior art date
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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
Definitions
- the present invention relates to a mechanical safety device which allows the transmission of electric current.
- This device is present between two electrical sockets, one mobile, the other wall and fixed. The device is therefore used for connection and transmission between these two sockets.
- the essential object of the mechanical safety device is to use the traction exerted on said sockets as a signal for separation of these sockets, in order not to damage the electrical installations.
- the state of the art can be defined by the document EP-A-0.417.892 which proposes a mechanism equipped with a pair of electrical connectors which can be coupled, to lock them together when they have been coupled and later to eject one from the other.
- the mechanism which has the same narrow width as the connectors alone, comprises a pair of locking / ejection devices or pivotally mounted elements at opposite ends of a first connector.
- the second connector includes a protective cover having openings near its opposite ends which accommodate the internal parts of the locking elements.
- the internal part of each locking element comprises a lock which is housed in a recessed slot in the protective casing, and extends from an opening of the protective casing in the locked position.
- Each locking member also includes an ejection portion which presses on the base of the second connector when the locking member pivots to its ejection position, to eject the first connector from the second.
- the ejection of the connectors is due to the choice of the user and does not prevent the tearing of a wall outlet.
- Document FR-A-2.626. 722 consists of the realization of a socket outlet with incorporated lockable circuit breaker. It consists of the combination of a socket with plugs forming a base incorporated into another superimposed socket comprising a switch controlled by a removable key. It is intended to allow the plugs to be left plugged into the mains, while cutting the circuit with safety closing.
- This document proposes electrical safety for a mobile socket outlet of an electrical appliance which can therefore remain plugged into a wall socket. There is no mechanical security here against pulling out.
- Document FR-A-2.482. 793 relates to a remotely controlled electromagnet, is housed and positioned in the body or protective casing of the plug (or of the female part), the movable armature of said electromagnet cooperating with a sliding mounted ejection finger in the body of the plug or of the female part, being capable of overflowing in particular between the pins (or the sockets), said armature being combined with the finger to allow, on the one hand, its locking in the retracted position and , on the other hand, its sudden relaxation to overflow the body of the plug (or of the female part) and rest on an appropriate part of the female part (or of the plug) for the purpose of ejecting the male plug when said electromagnet is excited.
- the document EP-A-0.586.359 relates to a device which automatically ensures the disengagement of an electrical plug with respect to a corresponding socket, when a force applied to it or to one of the elements, for example the cable, exceeds a given minimum value. It comprises an element movable between two positions: in the first, the element and more particularly a pawl holds the control element and the thrust members, which are associated therewith, against the action of elastic means; in the second, it releases the control element to the action of said elastic means which then ensure a relative movement between the plug and the socket in order to decouple them.
- This safety mechanism makes it possible to prevent a plug from being unexpectedly plugged into a standardized wall outlet, comprising a peripheral flange.
- the document GB-A-2.248.349 proposes a connector comprising a first connection frame having second metal terminals, a second connection frame having second metal terminals, which can be joined to the first terminals, and a blocking device for the reciprocal attachment of the frames.
- the first frame includes a sliding spring receiving an element to contain the repulsive force of the spring.
- the second frame slides against the element containing the spring until a locking pawl, which it carries, engages with part of the first frame.
- the spring is then compressed, while the element prevents the action of said spring on the second frame which remains secured to said first frame.
- Pressure on a Jbras carried by said second frame delivers the securing pawl, which allows the spring to separate the frames from one another.
- the present invention responds to all these problems by allowing the orientation of the mechanical safety device and by proposing a "hammer effect" which facilitates the separation of a mobile outlet from a wall outlet.
- the present invention provides a mechanical safety device for the transmission of electric current, and for the connection between a mobile electrical outlet, of an electrical appliance, on the one hand, and a fixed electrical outlet or an extension cord.
- a connection box equipped with a flexible power cord one end of which is provided with a connection socket on the wall socket and the other of which end supplies the junction socket of said safety device with the mobile socket, said device is provided with an ejection mechanism, of the mobile electrical socket, which is actuated by the action of a traction exerted on said safety device , said ejection mechanism is located at the junction socket " of the safety device.
- the ejection mechanism includes:
- the ejection mechanism consists essentially of a mobile carriage mounted against at least one spring constituting the ejection means, the carriage being mobile between a position where each spring is compressed following the implementation of the means arming, and a position where each spring is decompressed following the implementation of the disarming means.
- Each spring is mounted coaxially around a telescopic column, the ends of which are integral, on the one hand, with the mobile carriage and, on the other hand, with a support plate.
- the carriage comprises at least one tab having contact surfaces for the arming and disarming means.
- the carriage is integral with an ejection finger located, when the device connects a mobile outlet and a fixed wall outlet, between the mobile electrical outlet and the junction outlet, the ejection finger being at contact of said junction socket, in the armed position, and distant from the junction socket in the disarmed position.
- the carriage cooperates with an ejection finger located, when the device connects a mobile outlet and a fixed wall outlet, between the mobile electrical outlet and the junction outlet, the ejection finger being in contact or in longitudinal translation around said junction socket, in the armed position, and distant from the junction socket in the disarmed position, so that the carriage strikes the ejection finger during disarming of the mechanical safety device, which facilitates the ejection of the mobile plug.
- the ejection finger is formed, inter alia, from a contact ring with the mobile socket, the shapes of which are complementary and facilitate the ejection of said mobile socket.
- the arming means are constituted by an arming arm secured to at least one cam which can pivot around at least one axis of rotation cooperating with the external carcass of the connection box, the cam actuating the carriage in translation. against the springs.
- the trolley is provided with a hinge pin extending towards the support plate, the hook and said support plate cooperating together to hold the carriage against the spring or springs which are compressed.
- the power cord is integral with a trigger, movable in translation parallel to the movement of the carriage, and a trigger, movable in translation perpendicular to the translational movement of the trigger, cooperates with said trigger, in order to release the hook relative to the support plate.
- the hook, the trigger and the trigger are provided with return springs in position.
- FIG. 1 represents a side view of the safety device before its installation between a fixed wall socket, on the one hand, and a mobile socket of an electrical appliance, on the other hand.
- Figure 2 shows a side view identical to the figure
- FIG. 3 shows a side view identical to the figures
- FIG. 4 represents a top view of the security device installed between the fixed wall outlet and the mobile outlet and undergoing different voltages according to the angular position of said safety device.
- FIG. 5 represents a perspective view of an embodiment of the security device, in the disarmed position, stripped of its external carcass.
- Figure 6 shows a view identical to that of Figure
- FIG. 7 represents a perspective and partially exploded view of the embodiment presented in the figures
- FIG. 8 represents a perspective view of another embodiment of the security device, in the disarmed position, cleared of its outer carcass.
- Figure 9 shows a perspective and exploded view of the different parts constituting another safety device.
- Figure 10 shows a longitudinal sectional view, in the horizontal plane, of an embodiment almost identical to that of Figure 9 of the safety device.
- the present invention relates to a mechanical safety device 1 well represented in FIGS. 1 to 4.
- This device 1 has the property of allowing the transmission of electric current between a mobile electrical outlet 2 which can be plugged in according to FI on said device 1, as is well represented in FIG. 1.
- This mobile electrical outlet 2 coming from an electrical appliance such as, for example, a vacuum cleaner and on the other hand, a fixed electrical outlet 3 which can receive by plugging in the mechanical safety device
- the mechanical safety device 1 comes. to intervene in a classic connection between a male plug and a female plug.
- the essential object of this safety device 1 is to be sensitive to the traction exerted according to F3 as can be seen clearly in FIGS. 2 and 4.
- This traction is transmitted according to F4 via the mechanical safety device 1 which comprises an electrical supply cord 5.
- this cord 5 is flexible. It allows, as shown in Figure 4, an orientation of the entire device 1 depending on where the traction F3 is exerted. When the traction F3 exceeds a certain threshold, the device 1 will allow the mobile electrical outlet to be ejected
- the sensitivity threshold is of course calculated to allow the mobile outlet 2 to be ejected before the traction has damaged the wall outlet 3.
- Safety is therefore to prevent deterioration of the wall socket 3, and thus to avoid any electrical problems inherent in the destruction of a wall socket.
- the mechanical safety device 1 is essentially consisting of a connection box 4 equipped with a flexible power cord 5.
- This flexible power cord 5 has two ends, one provided with a connection socket 6 which is intended to cooperate with the wall socket 3, and the other which supplies the connection socket 7, carried by the device for security 1.
- connection box 4 is provided with an ejection mechanism 8 which is well represented in FIGS. 5 to 8, since the external carcass 20 is not visible on these.
- This ejection mechanism 8 allows movement along F5, that is to say the ejection of the movable socket 2 relative to the safety device 1, and more precisely, of the junction socket 7, of said device 1.
- the ejection mechanism 8 is triggered under the traction F3 exerted on the electric wire of the mobile outlet 2, but also under the action of the traction F4 exerted on the cord 5, as can be seen in FIG. 5 .
- the ejection mechanism 8 is essentially formed by three different means. These are the arming means, the actual ejection means and the disarming means.
- the ejection mechanism consists essentially of a movable carriage 9, mounted against two springs 10 constituting the ejection means, the carriage 9 being movable between a position where each spring 10 is compressed, following the implementation of the arming means according to arrow F6, and more precisely of the arming arm 14, and a position where each spring 10 is decompressed following the implementation of the disarming means .
- the carriage 9 is in fact mobile according to F7 and F8 of the figure
- Each spring 10 is mounted coaxially around a telescopic column 11, the ends of which are integral, on the one hand, with the mobile carriage 9 and, on the other hand, with a support plate 12.
- the carriage 9 has two legs 13 situated on the same side as the telescopic columns 11 and the springs 10, and situated parallel to these 10 and 11.
- each tab 13 has surfaces allowing cooperation with the arming and disarming means.
- This cocking arm 14 has an axis of rotation 16, which allows movement along F6 to make the carriage 9 move backwards against the springs 10.
- cam 15 can be present on each side of the cocking arm 14. This is what is shown in the figures.
- the trigger 23 which is positioned in a longitudinal axis perpendicular to the trigger, comes into contact with the support plate 12 on which the columns 11 are fixed.
- the trigger 23 is itself mounted against a return spring 26 mounted between said trigger 23 and the outer carcass 20, which is shown in this FIG. 5.
- the spring 26 tends to keep the trigger 23 still in contact with the support plate 12. It is therefore obvious that when the arming arm 14 is actuated according to F6, the carriage 9 moves back according to F7, which allows the separation of the trigger according to F9 and thus, the positioning of the trigger 23, in a movement opposite to that of the pull F4 that the cord 5 can undergo. In this position, which corresponds to Figure 6, the safety device 1 is armed.
- the hook 21 When the carriage 9 is brought along F7 into the cocking position, the hook 21 will be inserted into a space freed by the trigger 24, said hook 21 then cooperating with the support plate 12.
- the trigger 23 When the safety device 1 is subjected a pull F4, the trigger 23 will be movable along the same arrow F4, against the spring 26.
- the carriage 9 cooperates with an ejection finger 18 located, when the device 1 connects a mobile outlet 2 and a fixed wall outlet 3, between the mobile electrical outlet 2 and the outlet junction 7.
- the ejection finger 18 is in contact or in longitudinal translation, according to F13 and F14 of FIG. 7, around said junction socket 7, when the ejection mechanism 8 is in the armed position.
- the ejection finger 18 is moved away from the junction socket 7 when the position of the ejection mechanism 8 is disarmed.
- the difference in amplitude corresponds to a length that the mobile carriage 9 will use during disarmament, according to F8, to gain speed and strike the ejection finger 18, which will allow the ejection of the socket 2 strongly secured to the mechanical safety device 1.
- FIG. 8 another more conventional embodiment is possible. It is an ejection finger 17 which is located, when the device 1 connects a mobile outlet 2 and a fixed wall outlet
- This ejection finger 17 is in contact with the junction socket 7 in the armed position, and distant from the junction socket 7 in the disarmed position.
- the ejection finger 17 or 18 is formed of a contact ring 19 located in the outermost part, that is to say in contact with the movable socket 2 , the forms of which are complementary with said socket
- the power cord 5 is integral with the trigger 23 movable in translation under the traction F4 that the cord 5 undergoes, this movement being a translational movement parallel to the movement of the carriage 9.
- the trigger 23 has a longitudinal section in the form of substantially L. The free end of the first branch of L, parallel to the translational movement, cooperates. with a leg of the carriage 9 when the device is armed, and the second branch of the L is parallel and in contact with the support plate 12, when the power cord 5 is not subjected to any traction.
- This second branch of the L cooperates with the trigger 24 movable in translation, according to F9 and F10, in a translational movement which is perpendicular to the translational movement of the trigger 24, the detents 24 and trigger 23 cooperating together to allow the rotational movement along Wire and F12 of hook 21, shown in Figure 7.
- FIGs 9 and 10 another device according to the invention is shown. To make it easier to understand, the different parts are given identical references to those previously described, in relation to their function.
- the external carcass 20 consists of two half-shells, only one of which is shown in the two figures 9 and 10.
- the internal shape of the carcass 20 allows the central longitudinal positioning of different elements.
- the cocking arm 14 comprises two lugs in the extension of one another on either side of the plane formed by said cam 15. Each lug is associated with a return spring 28 secured to the carcass 20, so that the arm 14 is naturally pushed towards the finger 18. This movement is also that of the movable carriage 9, which is associated with a spring 10, the free end of which rests against a shoulder 29 of the carcass 20.
- this end is held in position inside a slot 30 of the movable carriage 9, due to the presence of a locking sleeve 31 preventing any unexpected exit of said cord 5 vis-à-vis the carcass 20.
- this socket 31, locked in position by screws 33 has another function which is to cooperate with the spring 27 to allow the free end of the cord 5 to be brought back into position, and especially the trigger 24 which is attached thereto.
- This trigger 24 is a block comprising two biased faces 32.
- each free end of each branch of the L having an axis perpendicular to the longitudinal axis of the housing 4.
- one end has a hinge pin 34 relative to the carcass 20 and a return pin in position 35, the two axes 35 cooperating together via at least one spring 36.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95921872A EP0763268A1 (fr) | 1994-06-03 | 1995-06-01 | Dispositif mecanique de securite pour la transmission de courant electrique |
AU26763/95A AU2676395A (en) | 1994-06-03 | 1995-06-01 | Mechanical safety device for transmitting electric current |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9407037A FR2720867B1 (fr) | 1994-06-03 | 1994-06-03 | Dispositif mécanique de sécurité pour la transmission de courant électrique. |
FR94/07037 | 1994-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995034109A1 true WO1995034109A1 (fr) | 1995-12-14 |
Family
ID=9464023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/000714 WO1995034109A1 (fr) | 1994-06-03 | 1995-06-01 | Dispositif mecanique de securite pour la transmission de courant electrique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0763268A1 (fr) |
AU (1) | AU2676395A (fr) |
FR (1) | FR2720867B1 (fr) |
WO (1) | WO1995034109A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2324419A (en) * | 1997-04-19 | 1998-10-21 | Peter John Firth | Power and signal safety disconnector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1394359B1 (it) * | 2009-01-23 | 2012-06-15 | Trismeccanica S N C Di Bracalente Emiliano & C | Dispositivo di sicurezza e/o emergenza per una utenza elettrica |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2482793A1 (fr) * | 1980-05-19 | 1981-11-20 | Roubeix Jean Baptiste | Prise de courant electrique avec moyen d'ejection automatique de la fiche male |
GB2248349A (en) * | 1990-08-28 | 1992-04-01 | Yazaki Corp | Means for disconnecting electrical connectors |
EP0586359A1 (fr) * | 1992-09-02 | 1994-03-09 | Staar Societe Anonyme | Désengagement automatique de fiches insérées dans des prises électriques |
-
1994
- 1994-06-03 FR FR9407037A patent/FR2720867B1/fr not_active Expired - Lifetime
-
1995
- 1995-06-01 EP EP95921872A patent/EP0763268A1/fr not_active Withdrawn
- 1995-06-01 WO PCT/FR1995/000714 patent/WO1995034109A1/fr not_active Application Discontinuation
- 1995-06-01 AU AU26763/95A patent/AU2676395A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2482793A1 (fr) * | 1980-05-19 | 1981-11-20 | Roubeix Jean Baptiste | Prise de courant electrique avec moyen d'ejection automatique de la fiche male |
GB2248349A (en) * | 1990-08-28 | 1992-04-01 | Yazaki Corp | Means for disconnecting electrical connectors |
EP0586359A1 (fr) * | 1992-09-02 | 1994-03-09 | Staar Societe Anonyme | Désengagement automatique de fiches insérées dans des prises électriques |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2324419A (en) * | 1997-04-19 | 1998-10-21 | Peter John Firth | Power and signal safety disconnector |
Also Published As
Publication number | Publication date |
---|---|
FR2720867A1 (fr) | 1995-12-08 |
EP0763268A1 (fr) | 1997-03-19 |
FR2720867B1 (fr) | 1996-07-26 |
AU2676395A (en) | 1996-01-04 |
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