FR2876508A1 - POWER SOCKET WITH SAFETY SHUTTER AND MULTIFUNCTIONAL BUILDING - Google Patents

Abstract

- Socket with safety shutter and multifunctional frame - According to the invention, the safety shutter (9) is located inside the cover (2), made of transparent and colored dielectric material, of the socket body of current (1) and the multifunctional frame (3) which, by rotating 180 °, allows its application to configurations for "bipolar" use, of the "French" and "Shuko" types, has a connection system inside of this body of the socket (1) for electrical conductors having the same or different diameter, the safety shutter (9) being linearly movable when the two pins of a plug are attached to it at the same time by counteracting the action of the spring (10) which, when the pins are removed, pushes the shutter back to its closed position.

Description

DESCRIPTION

  This patent relates to a socket having a safety shutter and a multifunctional frame, for low voltage electrical installations, preferably for domestic or commercial installations and whose essential characteristics are described below.

  Currently, an unavoidable requirement, taking into account that it is required to offer modular elements for all kinds of electrical installations while respecting safety and regulatory standards, is that the various electrical mechanisms provide the possibility of be used for different service configurations with a minimum of change of elements, which can be easily replaced, with a very low cost, immediately, without having to change all the components, it will suffice to incorporate or replace some of them or change their position.

  Obviously all this has an effect on the costs of manufacturing, storage and maintenance, because it will only manufacture a certain number of components, the remaining being valid for the different configurations that are expected to use, in this case , as socket outlet object of this patent.

  STATE OF THE ART Safety shut-off devices are known for outlets that must be installed on the cover of the assembly, which is the case of the Spanish Utility Model U 200001679 and whose characteristics are effective but 'do not install on the cover of the socket.

  Another similar case for elevated power outlets is described in Spanish Utility Model U 200301008 as well as in U 200301010 which has its safety elements placed on its own cover.

  ESSENTIAL CHARACTERISTICS OF THE INVENTION Essential features of this invention are the special arrangement of a safety shutter device, placed on the body cover of the socket while usually these devices are installed on the cover of the housing. 'together.

  With this implementation, the socket already offers the required safety before finishing the assembly of the cover, which facilitates the various installation tasks, always with the required safety.

  Another essential feature of the socket object of this invention is the design of its frame, which allows it to be used without the need to replace it, for the three different configurations that this socket will offer, it is to say, the bipolar configuration, the one known as "Schuko" and the one known as "French" which are described below.

  Finally, it should also be noted as an essential feature of this invention, the connection system which is provided with the socket which facilitates this connection action while allowing the connection of electrical cables having different diameters to each contact body, without the need to change nothing.

DESCRIPTION OF THE INVENTION

  As mentioned above, the socket provided with a safety shutter and whose multifunctional frame allows adaptation to three different configurations of the plug is essentially characterized in the following It has a new safety device located on the cover of the body of the socket of the device consisting of a shutter and a spring.

  This cover is made of a transparent and colored dielectric material for safety when handled, green in the case described. This color will indicate to the user that this shutter device exists on this cover, and it will not be necessary that the cover of the socket outlet is assembled so that the device incorporates the necessary safety and regulation.

  The shutter and the spring are incorporated inside the body cover of the socket; the shutter system is of the kind that guides the shutter being linearly displaced.

  With regard to the multifunctional frame, this component of the socket is identical for these three configurations.

  a) For the bipolar configuration, in which the socket has only two holes to insert the two cylindrical pins of the plug, holes are provided on the lid of the device and on the cover of the body of the socket .

  b) For the configuration of the type called "French" in which the device is provided with the earth contact and the corresponding vertical cylindrical pin for ground, emerging through the cover of the device; and c) finally for the configuration of the so-called "Schuko" type, in which the device has a grounding contact, provided with two symmetrical upper lateral lugs, with the corresponding contact spring 1 o and the two buttons.

  The frame is the same, as has been said, for these three configurations, and it is located at its normal position for bipolar and "French" type, while for the "Schuko" type, it has to turn from 180. In these three implementations, the frame will remain attached to its working position by appropriately placing the clamps.

  Finally, the socket object of this patent shows a particular arrangement inside it, especially that of the contact bodies to make the connection by screwing a screw and whose essential feature is to allow the connection of two electrical conductors having a different diameter on their own contact body without having to change any element, and it may also have, as an alternative embodiment, contact bodies without screws, provided with contact blades, it should also be noted that with the contacts of the "French" type, as in the "Schuko" configuration one does not need a contact body for the earth connection because it is the own body of the socket that acts as a guiding device.

  To describe in maximum detail all the components of the socket object of this invention, as well as to relate to each of them, a series of drawings is appended in which this socket has been illustrated in all its configurations, as a non-limiting example of implementation.

EXPLANATION OF THE DRAWINGS

  In these drawings: FIG. 1 is a perspective view, with all exploded components, of the socket in its bipolar configuration and connected by a screw.

  Fig. 2 is a perspective view and also exploded of the socket type "French" configuration and connected by a screw.

  Fig. 3 is a perspective and exploded view of the socket type "Schuko" configuration of the socket, and connected by a screw.

  Fig. 4 also shows in perspective and exploded, the socket in the bipolar configuration with quick connection without screws; Fig. 5 is a perspective and exploded view of the socket type "French" configuration with quick connection without screws; Fig. 6 illustrates in perspective and exploded the socket of the type "Schuko" configuration with quick connection without screws.

  Fig. 7 is a perspective view of the body of the socket in its bipolar configuration, with the various components already assembled.

  Fig. 8 is a plan view corresponding to the previous figure.

  Fig. 9 is a detail, in section along CC of the area to place the contact body on the body of the socket, according to the previous figure.

  Fig. 10 is a detail corresponding to Figure 8 according to section BB. Fig. 11 is an exploded perspective view of the components of the contact body for the screw connection.

  Fig. 12 is a plan view of this contact body, for screw connection, according to the previous figure; Fig. 13 corresponds to Section AA of Figure 12; Fig. 14 is an elevational view along section BB corresponding to FIG. 12; Fig. 15 is a detail, on a larger scale, of the screw contact, located at its position on the support of the screw contact; Fig. 16 is a detail corresponding to the previous figure with the contact support already folded on the own contact; Fig. 17 is an elevational view in section CC of Figure 12 of the contact body; Fig. 18 is a sectional view of the contact body, in section AA, from FIG. 12, showing two connected cables, each having the same diameter; Fig. 19 illustrates an identical section of the contact body, according to the previous figure, which shows two connected cables having different diameters; Fig. 20 is a perspective view of the plug cover; Fig. 21 illustrates the same cover of the socket, in a plan view and side and front projections, according to sections AA, CC and BB; Fig. 22 illustrates the cover of FIGS. 20 and 21, viewed from below and open, in the first assembly sequence of the shutter mechanism, shown broken away; Fig. 23 illustrates, in perspective, the second sequence of the assembly of the shutter mechanism according to the previous figure; Fig. 24 also shows in perspective the lid with the shutter assembled and closed; Fig. 25 illustrates a sectional view of the beginning of the sequence of how the shutter is acting, referring to section CC of FIG. 21, which illustrates the pin of the plug which is approaching; Fig. 26 illustrates the following sequence, according to the preceding figure, with the pin attached to the shutter; Fig. 27 illustrates the end of the sequence, with the shutter already apart and the pin penetrating inside the socket; Fig. 28 illustrates in perspective and exploded part of the socket, in its bipolar configuration, in the variant of the shutter mechanism located on the lid of the assembly; Fig. 29 illustrates on a larger scale, the components of the shutter mechanism of FIG. 28; Figs. 30 and 31 illustrate in perspective the body of the socket, with the frame placed thereon and showing the action of the fastening flange, in the closed position (FIG. 30) and in the open position, when the screw drive was screwed, (Figure 31); Fig. 32 is a perspective view of the body of the socket with the frame placed thereon, in the bipolar and French configurations; Fig. 33 is a perspective view corresponding to that of the previous figure, with the frame already placed on the body of the socket; Figure 34 is a detail of Figure 33, on a larger scale, showing how the rims of the frame are placed in the indicated position of the body of the socket.

  Fig. 35 represents the "Schuko" configuration and the 180 turn needed to correctly place the frame on the body of the power socket; Fig. 36 is a view corresponding to that of the previous figure, with the frame already placed on the body of the socket; and FIG. 37 is an enlarged detail of how the rims of the frame are placed in the indicated position of the body of the socket in accordance with the preceding figure.

  According to the drawings, the socket with safety shutter and multifunctional frame, for low voltage electrical installations object of this invention, is characterized in that it consists of a body of the socket (1) provided with a cover (2) and on which the multifunctional frame (3) will be fixed by finally locating the cover (4) of the assembly Inside the body of the socket (1) are the grooves for placing , perfectly fixed, the contact bodies (5) to which will be connected, in each of them, two electrical conductors (6) while at the central part the stud (5a) remains located, having the function of allowing screwing on itself of the fixing screw of the lid of the bipolar plug as well as the fixing of the earth contact and the cover in the "Schuko" and "Français" types of implementation.

  At the outer part of this body of the socket (1) the clamps (7) are located to fix the assembly against the walls of the recess where it will be embedded. These flanges in FIGS. 1-6 and 28 are shown exploded, while in Figs. 30 and 31, they are illustrated in the non-operating and operating position, respectively.

  The cover (2) of the body of the socket (1) has a folding lid (8) as shown in Figures 20 to 24, Inside this cover are located the shutter (9) with its spring (10). Figs. 22 to 24 show a sequence of installation of this shutter and its spring, the cover (2) being seen from below, with its open cover (8) and the shutter (9) and the spring (10) separated, exploded in FIG. 22.

  Fig. 23 illustrates the shutter (9) and the spring (10) already in their place, with the lid (8) starting to descend to close, a completely complete closure shown in FIG. 24.

  In these figures, as well as in FIGS. 20 and 21, it is possible to see the circular holes (11) for the passage of the cylindrical pins (12) of the plug as well as the central lateral holes (13) for the passage of the cylindrical pin vertical (14) for the ground connection in the configuration type "French" and the lateral hole (15) for the passage of the corresponding lateral parts (16) of the earth connection in the configuration type "Schuko".

  These circular holes (11) for the passage of the pins (12) correspond with those of the folding lid (8), indicated with the reference (17) and they are all located so that the shutter (9) located in its original place , closes the access through them, inclined ramps (18) that this shutter (9) possesses remaining located just there.

  The assembly of the cover (2) being thus arranged, at the moment when the pins (12) of the plug are supported at the same time on these inclined ramps (18) as a result of the generated force, this will cause the linear displacement of the shutter (9) counteracting the resilient action of the spring (10). This movement clears the access holes (11) by allowing the pins (12) of the plug to move towards the inside of the body of the socket (1).

  When these pins (12) are removed, when the plug is pulled out of the socket, the spring (10) causes the shutter (9) to move back to its initial position at which it passage inwards by acting again as a safety element.

  The structure of the body of the socket (1) allows to choose, as an implementation variant, the shutter mechanism in its already known version of placement in the lid of the assembly (4), without the need to change this body of the socket (1), the cover (4), the frame (3) and the contacts (5). Only the cover (2) of the body (1) must be replaced by the cover (2a) (Fig. 28 and 29) intended to accommodate and fix the support (38) of the rotating shutter (39), with its spring (40) and the shutter cover (41), accessible to the cylindrical pins (12) of the plug.

  The connection device is located inside the body of the socket (1), characteristic of the socket object of this invention.

  This device consists of contact bodies (5) which remain fixed in their corresponding groove of the body of the socket (1) thanks to the elasticity of their rear part, ending in tongues bent inwards (19). defining at the same time the groove (20) through which the pins (12) of the plug will be introduced, as well as the region (21) for positioning the conductor to connect to the contacts (Figures 7 and 8).

  In the configuration of the socket with screw contact, remain located inside the contact body (5), the support of the screw contact (22) with the screw contact (23).

  This support (22), as can be seen in Figures 15 and 16, folds its ends in the form of flaps (22a) at the time of assembly, on the own contact (23), surrounding and forming a block that allows the switching of this contact (23) so that it can be connected, by acting correctly on the screw (24), the electrical conductors, which are two, and the diameters can be the same or even different (6) and (6a) (Figures 18 and 19), without having to change any of the components, thanks to this switching of this contact (23).

  Each contact body (5) has, at its upper part and on both sides, substantially cylindrical bumps (25) made by stamping, 3o which starts with openings (26) funnel-shaped to facilitate as much as possible the introduction, placement and connection of the electrical conductors (6) as they serve as a guide. This is clearly shown in Figure 11.

  The bumps (25) have an interruption (25 '), as also shown in Figure 11, whose function is to ensure a good contact of the driver with the contact body and to prevent the driver from sliding backwards because of his own traction.

  This upper part of the contact body (5) ends in an inward fold (27) (Fig.17) whose function is to serve as a stop during the insertion and placement of the corresponding electrical conductor (6) which is going to be logged.

  Since the cover (2) of the body of the socket (1) will be manufactured, as mentioned above, in a transparent dielectric material, the operator can observe and follow the course of the connection operation , with the advantage that this represents in practice ..

  An alternative embodiment, in any of the configurations of the socket, is the placement in the contact bodies (5) of a quick-connect device consisting of contact springs (28) (visible in Figs. 4, 5 and 6), which will be controlled by external buttons (29) located above the contact body (5) so that by simply pressing these buttons with the hand, it will cause the descent of the upper part of the corresponding contact spring (5), allowing to locate in this free space which is created, the end of the electrical conductor (6) that one wishes to connect, even if the diameter is different (6) or (6a) which will remain perfectly fixed when the pressure on this contact spring (28) stops, and it will return to its initial position by trapping the electrical conductor (6).

  An essential feature of the socket object of this invention is the fact that by means of a minimum variation of its components, one can obtain configurations other than the bipolar and which will be described below. These different configurations will be those of the "French" type and the "Schuko" type.

  According to FIGS. 1 and 4, the bipolar configuration consists of the use of the receptacle for receiving pins of bipolar plugs, that is to say having two cylindrical pins (12).

  In this configuration, above the body of the socket (1), with its cover (2), remain located the frame (3) and the lid of the assembly i0 2876508 (4) which will have holes (11). ) for the correct and easy passage of the two pins (12) of the plug.

  In the configuration of the type "French" illustrated in Figs. 2 and 5, inside the body of the socket (1) is located the contact (30) of the grounding, if necessary, with its screw (24 ') and the contacts by screws (23) and the corresponding contact support (22). The vertical cylindrical pin (14) of ground for this type "French" of ground remains fixed on the posterior end of this contact of ground (30).

  In this same configuration, the frame (3) and the cover (4a), provided with the holes necessary for its function, are located on the body of the socket (1), with its cover (2).

  Finally in the configuration "Schuko" type, in accordance with FIGS. 3 and 6, the contact of the earth electrode (31) is located inside the body of the socket (1), having special and precise characteristics for this configuration, provided with two symmetrical and vertical side tabs (16), which will appear through the corresponding openings that the cover (4b) has in this configuration, a cover which closes the assembly, above the frame (3) and the body (1) with its lid (2).

  It is precisely in this type "Schuko" configuration in which the frame (3) will be positioned differently than the two previous configurations for its proper use, without having to change any component.

  The multifunctional frame (3) characteristic of the socket outlet of this invention is characterized in that it has vertical flanges (32) (which can be seen more clearly in Figures 32-36), provided at their bump edges: a bump similar to a substantially square flange (33) (see Fig. 32) located at the central portion of the lateral flange (34) and a recess (35) similar to a late flank end (36) (see Fig. 35), located on the other edge of the flange (32).

  The elements of the frame (3) being thus arranged, when installing them to use the socket in the configurations bipolar and French, it will be positioned on the body of the socket (1) as shown in the figures 32 and 33, so that the flange (33) abuts within the groove area (37) that the body of the socket (1) has at its angles, the frame (3) remaining at a predetermined distance from the body of the socket (1). Fig. 34 is a detail on a larger scale of the way this rim (32) is placed.

  In the case of use for the configuration type "Schuko", the frame will rotate 180 so that in the groove area (37) this vertical flange (32) will remain located, relying on the recess ( 35), the frame remaining further away from the body of the socket (1), as shown in Figs. 35 to 37, at a predetermined distance required for this type "Schuko" configuration.

  As the subject matter of this invention has been sufficiently described, it should be pointed out that variations in sizes, shapes, external appearance and kinds of materials used in the implementation of the socket that has been described will not affect the spirit of the invention, which is summarized in the appended claims.

Claims (15)

  1.- Socket with safety shutter and multifunctional frame, applicable to low voltage electrical installations, of the type consisting of a body of the socket (1) with its cover (2), frame (3) and cover (4) and the relevant contact bodies (5), essentially characterized in that it is provided with a safety shutter mechanism arranged on the cover (2) of the body of the socket (1) with which the protection is provided, even if the assembly of the socket (3) is not finished and more precisely, if the lid (4) of the assembly is not yet placed.   2. Socket with safety shutter and multifunctional frame, according to the preceding claim, characterized in that the structure of the frame (3) allows the use immediately, without having to change any element, for three different configurations d use and operation: configuration "bipolar" configuration "French" and configuration "Schuko", and for this third configuration, it is sufficient that the frame (3) turns 180 on itself, positioning it so appropriate on the body of the socket (1).   3. Socket with safety shutter and multifunctional frame, according to claim 1, characterized in that it has a connection system located inside the body of the socket (1), for placing immediately and without having to change any element, electrical conductors having a diameter the same or different (6) and (6a), which will be connected, as required, individually or in pairs in each contact body (5).   4. Plug socket with safety shutter and multifunctional frame, according to claims 1 and 2, characterized in that the bipolar configuration consists of the body of the socket (1), inside which are located the contact bodies (5), with corresponding contacts (23), fixing and contact screws (24), and a support (22) for screw contact and the cover of the body (2) inside which the safety shutter mechanism, the frame (3) and the cover (4) of the assembly are completed, together with fastening flanges (7) of the body of the socket (1) in the anchorage place.   5. Socket with safety shutter and multifunctional frame according to claims 1, 2 and 4, characterized in that the type "French" configuration consists of the same components as the type "bipolar" configuration of the claim preceding, adding the contact of the appropriate grounding (30), the fixing of which is by riveting on the body of the socket (1) by means of the rivet (5a), the screw (24 ') and its contact (23) as well as the screw contact holder (22), in addition to the cylindrical grounding pin (14), the upper face of its cover (4a) being adapted to this configuration by means of necessary openings ( 17) for the passage of the pins (12) of the plug and the output of the cylindrical pin (14).   6. Socket with safety shutter and multifunctional frame according to claims 1, 2 and 4, characterized in that the configuration type "Schuko" consists of the same components as the configuration "bipolar" of claim 4, in incorporating the "Schuko" grounding contact (31), the attachment of which is by riveting to the body of the socket (1) by means of the rivet (5a), the screw (24 ') and its contact (23). ), as well as the support of the screw contact (22), in addition to the two symmetrical ground side tabs (16), the upper face of its cover (4b) being adapted to this configuration by means of the openings necessary for the passage of the pins (12) of the plug and the output of the two side lugs (16).   7. Socket with safety shutter and multifunctional frame according to claims 1 and 4, characterized in that each contact body (5) remains fixed in the corresponding groove of the body of the socket (1) thanks to the elasticity of the tongue-shaped rear part (19), bent inwards, configuring the groove (20) necessary where the respective pins of the plug (12) will be inserted and the appropriate contact will be established, at the same time that they configure the place (21) to position the connection contacts.   8. Safety socket with safety shutter and multifunctional frame, according to claims 4 to 7, characterized in that the structure of the contact body (5) for screw connection (24) allows the support to be placed inside. (22) of the screw contact as well as the screw contact (23), this support (22) being folded by means of its flaps (22a), on the contact (23) thus forming a block allowing this contact (23) ) tilts in its groove inside this contact body (5), to accept connections having different diameters of electrical conductors (6) and (6a).   9. Socket with safety shutter and multifunctional frame, according to claims 7 and 8, characterized in that the upper part of each contact body (5) has, on both sides, substantially cylindrical bumps formed by stamping as well as funnel-shaped openings (26) to facilitate placement and connection of the corresponding electrical conductor (6) as it serves for guiding, said upper portion ending in an inward fold (27) serving when this electrical conductor (6) is placed, a visible operation because the cover (2) of the body of the socket (1) will preferably be made of a transparent and colored dielectric material.   10. Socket with safety shutter and multifunctional frame, according to claim 2, characterized in that the contact bodies (5) may have, as an alternative embodiment and in any configuration, a system to rapid connection, without screw, consisting of the arrangement of contact springs (28), preferably semi-slotted, inside this body (5) with buttons (29) for external control on these contact springs ( 28), allowing by simple pressure, the rapid connection of a pair of electrical conductors (6) in each body (5) even if they have different diameters (6) and (6a).   11. Socket with safety shutter and multifunctional frame according to claim 1, characterized in that the safety shutter mechanism consists of the shutter element (9), linearly movable inside the cover (2) the body of the socket (1) where it remains located, and a spring (10) which keeps this shutter (9) in the safety closing position, preventing access of any object to the inside the holes (11) that the cover (2) has and in which the pins (12) of the plug must be inserted.   12. Plug socket with safety shutter and multifunctional frame, according to claims 1 and 11, characterized in that the shutter (9) has two ramped areas (18) on the upper face and coinciding with the holes (11) for accessing the pins (12) of the plug from the cover (4) of the assembly, so that when these pins (12) are pressed at the same time on these inclined ramps (18), the generated force causes the linear displacement of the shutter (9) by counteracting the resilient action of the spring (10) and immediately allowing the inward movement of these pins (12) to the corresponding contacts, as the holes access are released, the shutter (9) returning to its initial safety position when the pins (12) of the plug are removed.   13. Socket with safety shutter and multifunctional frame according to claims 1, 11 and 12, characterized in that the cover (2) of the body of the socket (1) has a cover (8) folding, provided of holes (17) which, when open, allows the inside of this cover (2) to be seen allowing the shutter (9) and the spring (10) to be correctly positioned in their groove, by making the lowering and closing the cover (8) to keep the shutter (9) and the spring (10) properly located at their safety position, that is, to prevent access to the interior of the body of the power outlet (1) by these holes (11) and the corresponding (17) of the folding lid (8) which coincides when it folds.   14. Socket with safety shutter and multifunctional frame, in accordance with claims 1 and 11, characterized in that the shutter mechanism can be located, as an alternative, near the cover of the assembly (4) thanks to the structure of the body of the socket (1) which, by means of its cover (2a) can accommodate the support piece (38) of a rotating shutter (39) and its spring (40) with the shutter cover ( 41).   15. Socket with safety shutter and multifunctional frame, according to claims 1 and 2, characterized in that this multifunctional frame (3), which can be used for the three configurations described, has on both sides, flanges vertical members (32) which will be introduced into corresponding grooves (37) of the body of the socket (1) abutting on substantially square flanges (33) of the lateral delicately (34), this frame (3) thus remaining fixed to the body of the socket (1) and at a certain distance, necessary for the correct arrangement of the various components of the assembly in its bipolar and "French" configurations and it is then sufficient to position this frame (3), in the 180, so that the vertical flange (32) is introduced into the groove (37) by relying on a recess (35) of this lateral delineation (36) on the other side of the flange (32), so that the multifunctional mount (3) will remain at a longer distance from the socket body (1), depending on the space required to fit the various components in the "Schuko" configuration.