HUP0500845A2 - Plug-in with safety locking device and multifunctional frame - Google Patents

Description

PUBLICATION

COPY I

Representative: Pintz and Partners Patent and Trademark Office, Budapest

Socket with safety lock and multi-function frame

The invention relates to a socket outlet with a safety locking mechanism and a multifunctional frame for low-voltage electrical appliances, primarily for household and office appliances, the basic characteristics of which are described below.

Nowadays - taking into account the need for electrical equipment to be modular and to always comply with safety and operating regulations - it is an essential requirement that different electrical structures can be used in multiple configurations with the replacement of as few, simple and cost-effective components as possible, so that it is not necessary to replace all components, but it is sufficient to install or replace only a few elements or change their position.

Of course, all of this also affects production, storage and service costs, since the majority of the components can be used in all desired configurations, and only a certain quantity of the elements to be replaced needs to be manufactured, in this case for the socket that is the subject of the invention.

State of the art

There are known safety locking devices developed for sockets that are to be placed on the cover of the fitting, such as Spanish utility model U 200001679, which has suitable features but which is not to be placed on the cover of the socket body.

Another similar but suspended socket outlet is disclosed in Spanish utility model U 200301008 and U 200301010, the latter of which discloses safety features to be placed on the cover of the fitting.

Basic features of the invention

The essence of the invention is the special placement of the safety locking device, according to which the safety locking device is placed on the cover of the socket body, while in the case of known solutions the safety locking devices are placed on the cover of the fitting.

In this embodiment, the base body itself already has the appropriate protection, even before the cover is placed on it, which allows the various installation operations to be carried out with the appropriate safety.

Another essential feature of the socket according to the invention is the design of the frame, which allows the socket to be used in three different configurations - the bipolar, Schuko and French configurations described below - without changing the frame.

A further essential feature of the invention is that the socket is provided with connection terminals which allow electrical wires of different diameters to be connected to each connection body without having to replace or modify anything on the assembly.

Description of the invention

In accordance with the above, the socket outlet with a safety locking mechanism and a multifunctional frame allowing use in three different connector configurations can be characterized by the following:

The socket is equipped with a novel safety device located on the cover of the socket body, which includes a lock and a spring.

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The said cover is made of transparent, colored insulating material for safety reasons - in the case shown, green. This color indicates to the user that the cover is equipped with the said locking mechanism and thus it is not necessary to install the socket cover in order to achieve the appropriate and legally required safety of the device.

The lock and spring are built into the cover of the socket body, the locking mechanism is of the guided type, the lock has linear movement.

The multifunctional frame is the same for the three configurations mentioned above.

a) In the case of the bipolar configuration, where the socket-outlet has only two openings to accommodate the two cylindrical contact pins of the plug, both the cover of the device and the cover plate of the socket-outlet body are provided with openings.

b) In the case of the so-called French configuration, in which the device is also earthed and is accordingly equipped with a cylindrical contact pin protruding perpendicularly from the cover of the device, providing an earth connection.

c) Finally, in the so-called Schuko configuration, in which the device also has grounding and is accordingly equipped with two symmetrical side terminals and the corresponding contact spring as well as two buttons.

As mentioned, the frame is the same for these three configurations. For the bipolar and French configurations, the frame is mounted in the normal position, while for the Schuko configuration it is mounted in a 180° rotated position. In all three embodiments, the frame is fixed in the correct position using fixing pins.

Finally, the socket according to the invention also has a specific internal solution, namely that the connection bodies, which ensure the connection by tightening a screw, are designed in such a way that two electrical wires of different diameters can be attached to the same connection body without having to replace any element. In one variant of the embodiment, the connection body is of a screwless design and is provided with contact surfaces. It is emphasized that in the case of the French and Schuko type configurations, a separate connection body is not required for the fold connection, since the socket body itself plays the role of the insertion device.

In order to describe all the components of the socket according to the invention in the greatest possible detail and to provide appropriate references, all configurations of the socket are shown in the figures, without these examples limiting the scope of the invention.

Description of the figures

Figure 1: Exploded perspective view of the bipolar configuration of the socket, where the wiring connections are secured by screws.

Figure 2: Exploded perspective view of the French configuration of the socket, where the wiring connections are secured by screws.

Figure 3: Exploded perspective view of the Schuko configuration of the socket outlet, where the wiring connections are secured by screws.

Figure 4: Exploded perspective view of the bipolar configuration of the socket with screwless quick-connect connections.

Figure 5: Exploded perspective view of the French configuration of the socket with screwless quick-connect connections.

Figure 6: Exploded perspective view of the Schuko configuration of the socket with screwless quick connection connections.

Figure 7: Perspective view of the socket body in bipolar configuration, with the various components.

Figure 8: top view of the previous figure.

Figure 9: the socket body according to the previous figure shows in detail the part designed to accommodate the connector body, in a section taken along the CC plane.

Figure 10: a detail of Figure 8 in a section taken along the BB plane.

Figure 11: Exploded perspective view of the elements of the connector body for screw connection.

Figure 12: top view of the screw connection body shown in the previous figure.

Figure 13: section taken along the plane AA marked in Figure 12.

Figure 14: section taken along the plane BB marked in Figure 12.

Figure 15: Enlarged detail of the screw connector in position on the connector support.

Figure 16: detail shown in the previous figure, where the connector support is already bent onto the connector itself.

Figure 17: vertical view of the connector body in section taken along the plane CC marked in Figure 12.

Figure 18: section of the connector body taken along the plane AA marked in Figure 12, in the case of connecting two wires of the same diameter.

Figure 19: same section of the connector body as the previous figure, when connecting two wires of different diameters.

Figure 20: perspective view of the cover of the socket body.

Figure 21: top view of the cover plate of the socket body shown in the previous figure, as well as its side and front views in section taken along the planes AA, CC and BB.

Figure 22: exploded view of the cover shown in Figures 21 and 22 in the bottom view and in the open state, in the first step of placing the safety closure device.

Figure 23: the second step of placing the safety locking device shown in the previous figure, in perspective.

Figure 24: perspective view of the cover plate with safety locking mechanism, in the closed state.

Figure 25: the first step of the operation of the safety locking mechanism is depicted in the section marked CC in Figure 21, the figure shows the approach of the contact pin of the plug.

Figure 26: next step corresponding to the previous figure, where the contact pin hits the safety locking mechanism.

Figure 27: the final step, where the safety locking mechanism has already opened and the contact pin penetrates the socket body.

Figure 28: Exploded perspective view of the socket in a bipolar configuration, in which case the safety locking mechanism is located on the cover of the fitting.

Figure 29: An enlarged view of the elements of the safety closure device shown in Figure 28.

Figures 30-31: perspective view of the socket body with the frame in place, showing the operation of the locking clips. In Figure 30, the locking clip is in the closed position, in Figure 31, it is in the open position, with the locking screw tightened.

Figure 32: Perspective view of the socket body during installation of the frame, for bipolar and French configurations.

Figure 33: perspective view corresponding to the previous figure, where the frame is already placed on the socket body.

Figure 34: an enlarged detail of Figure 33, showing the location of the frame fixing pins at the aforementioned location of the socket body.

Figure 35: shows the Schuko configuration and the 180° rotation of the frame required to place the frame on the socket body.

Figure 36: corresponding to the previous drawing, where the frame is already placed on the socket body.

Figure 37: an enlarged detail of the previous figure, showing the location of the frame fixing pins at the aforementioned location of the socket body.

According to the figures, the socket outlet according to the invention, equipped with a safety locking mechanism and a multifunctional frame, for low-voltage electrical appliances can be characterized in that it has a socket outlet body 1 with a cover plate 2, the multifunctional frame 3 is fixed thereon, and finally the cover 4 of the fitting is fixed.

The connection bodies 5 are located in the nests formed in the socket body 1, properly fixed, to which two electrical wires 6 can be connected, while in the middle there is the rivet 5a, into which the cover fixing screw is screwed in the case of a bipolar configuration, and to which the grounding and the cover are fixed in the case of a French and Schuko configuration.

The fixing clips 7 are located on the outer part of the aforementioned socket body 1, with which the assembly is fixed to the walls of the cavity formed for the socket. The f x.H' :: ^:

In Figures 1-6 and 28, the fastening clips 7 are shown in an exploded view, while in Figures 30 and 31 they are shown in the fastening and non-fastening states.

As shown in Figures 20 to 24, the cover 2 of the socket body 1 has a hinged roof 8, in which the lock 9 and the associated spring 10 are located. Figures 22 to 24 show the steps of installing the lock 9 and the associated spring 10. Figures 22 to 24 show the cover 2 from below in an exploded view, with the hinged roof 8 open and the lock 9 and the spring 10 not yet installed.

In Figure 23, the lock 9 and the spring 10 are already inserted, the folding roof 8 is already in a half-folded state, while in Figure 24 it is already in a fully closed state.

These, as well as Figures 20 and 21, clearly show the round openings 11 for receiving the cylindrical contact pins 12 of the plug, and in the case of the French configuration, the central lateral opening 13 for the perpendicular cylindrical contact pin 14 of the earth connection, and in the case of the Schuko configuration, the lateral opening 15 for the lateral terminals 16 of the earth connection.

Openings marked with reference numerals 17 corresponding to the round openings 11 for receiving the contact pins 12 are also found on the folding roof 8, and all these openings are positioned so that the lock 9 in its initial position closes them, and the inclined surfaces 18 of said lock 9 are positioned between said openings.

In the cover plate 2 thus formed, the force exerted by the contact pins of the plug 12 on the said inclined surfaces 18 causes the lock 9 to move linearly against the spring 10. As a result of this movement, the round openings 11 become free and the contact pins of the plug 12 can penetrate the socket body 1.

When the said contact pins 12 are pulled out of the socket when the plug is removed, the spring 10 pushes the lock 9 back to its original position, in which it blocks the path of penetration and again serves as a safety element.

The construction of the socket body 1 also allows for the creation of an embodiment in which the locking mechanism is located in the cover 4 of the assembly in the known manner, and for this it is not necessary to replace either the socket body 1, the cover 4, the frame 3 or the connection bodies 5. Only the cover plate 2 of the socket body 1 needs to be replaced with the cover plate 2a (Figs. 28 and 29), which is suitable for receiving and fixing the rotating lock 39 and the holder 38 of the associated spring 40, as well as the locking mechanism cover 41 accessible by the cylindrical contact pins 12 of the plug.

The socket according to the invention is characterized in that the connection unit is located inside the socket body 1.

The connection unit 5 includes connector bodies which are fixed in the corresponding sockets of the socket body 1 by the elasticity of their rear parts ending in inwardly bent tongues 19, which inwardly bent tongues 19 at the same time define on the one hand a socket 20 for the contact pins 12 of the plug and on the other hand an area 21 for accommodating the connector contacts (Figs. 7 and 8).

In the case of a socket designed with a screw connection terminal, the screw connection support 22 and the screw connection 23 are located in the connection body 5.

As shown in Figures 15 and 16, the ends of the connection support 22 can be bent in the shape of a wing 22a onto the screw connection 23 during assembly and surround it, which thus forms a block and allows the screw connection 23 to be tilted, and thus, when the screw 24 is properly screwed in, it allows the connection of two electrical wires 6 and 6a of the same or different diameters (Figures 18 and 19) without replacing any components, thanks to the tilting of the screw connection 23.

Both connector bodies 5 have protrusions 25 formed on both sides of their upper part, essentially cylindrical in shape, formed by bending, starting with a funnel-like bulge 26, the purpose of which is to facilitate the introduction, placement and connection of the electrical wires 6, since they serve as perfect guiding elements, as can be clearly seen in Fig. 1.

It is also clearly visible in Figure 11 that gaps 25' are formed on the protrusions 25, the purpose of which is to ensure proper contact between the wire and the connector body 5, and to prevent the wire from slipping out or pulling out.

This upper part of the connector body 5 ends in a folded part 27 (Figure 17), which functions as a stop when introducing and positioning the corresponding electrical wire 6 to be connected.

Since, as already indicated above, the cover 2 of the socket body 1 is made of transparent insulating material, the person performing the installation can follow and check the connection process, which is a significant advantage in practice.

In a possible embodiment of any configuration of the socket, the connection bodies 5 are provided with a quick-connecting device with connection springs 28 (as shown in Figures 4, 5, 6), which can be operated by external buttons 29 located above the connection body 5 in such a way that by manually pressing the said button, the upper part of the corresponding connection spring 28 is depressed, and the end of the electrical wire 6 or 6a of any diameter to be connected is introduced into the free space thus formed. When the pressure on the connection spring 28 is released, it returns to its original position and clamps the electrical wire 6 or 6a, which is thus perfectly fixed.

The essential feature of the socket according to the invention is that with very minor changes in the components, configurations other than bipolar can be created, which are described in detail below. These are the French and Schuko configurations.

In the bipolar configuration shown in Figures 1 and 4, the base body is designed to accommodate bipolar plugs having two cylindrical 12 contact pins.

In this configuration, the cover plate 2 with the openings 11, as well as the frame 3 and the assembly cover 4, through which the two contact pins 12 of the plug are inserted, are located above the socket body 1.

In the French configuration shown in Figures 2 and 5, the socket body 1 houses the earthing contact 30, optionally with the screw 24' and the associated screw connector 23 and connector support 22. In this French configuration, a perpendicular cylindrical contact pin 14 providing an earthing connection is attached to the rear end of the earthing contact 30.

In this configuration, the cover plate 2, as well as the frame 3 and the cover 4a, are located on the socket body 1, provided with the openings necessary for operation.

Finally, in the case of the Schuko configuration shown in Figures 3 and 6, the earth connection 31 of the configuration-specific design is located in the socket body 1, which earth connection 31 has two symmetrical and perpendicular lateral terminals 16, which are led out through corresponding openings formed in this configuration in the cover 4b, which cover 4b, when placed on the frame 3, closes the socket body 1 provided with the cover plate 2.

In this Schuko configuration, for proper operation, the 3 frames must be positioned differently from the previous two configurations, without having to replace any elements.

The multifunctional frame 3 of the socket according to the invention is characterized by having perpendicular pins 32 (these are best seen in Figures 32 - 36), on both edges of which projections are formed: a substantially square projection 33 located in the middle of the lateral recess 34 (Figure 32), and a notch 35 formed on the lateral edge 36 of the other edge of the pins 32 (Figure 35).

With this design of the frame 3, in the case of using the socket in a bipolar or French configuration, the frame 3 is placed on the socket body 1 as shown in Figures 32 and 33, so that the pins 32 abut in the receiving nests 37 formed at the corners of the socket body 1, so that the frame 3 is located at a certain distance from the socket body 1. Figure 34 shows the location of the said pins 32 with an enlargement of a detail.

In the case of use in Schuko configuration, the frame 3 is placed rotated by 180°, in such a way that the said perpendicular pins 32 rest on the notches 35 in the receiving nest 37, so that the frame 3 is located at a certain greater distance from the socket body 1 required in the case of Schuko configuration, as shown in Figures 35 - 37.

After a detailed description of the subject matter of the invention, it is emphasized that any changes in the dimensions, shape, external appearance or material of the presented embodiment of the socket do not affect the essence of the invention, which is summarized in the following claims.

Claims (15)

PATENT CLAIMS 1. A socket outlet with a safety locking mechanism and a multifunctional frame for low-voltage electrical devices, comprising a socket outlet body (1) with a cover plate (2), a frame (3), a cover (4) and corresponding connection bodies (5), characterized in that the socket outlet body (1) is provided with a safety locking mechanism located in the cover plate (2), and in this way adequate safety is ensured even when the installation of the base body has not yet been completed, more precisely when the assembly cover (4) has not yet been installed. 2. Socket outlet with safety locking mechanism and multifunctional frame according to claim 1, characterized in that the design of the frame (3) allows immediate use in three different configurations without the need to replace any components: bipolar configuration, French configuration and Schuko configuration; all that is required in the case of the third configuration is to place the frame (3) on the socket body (1) in a position rotated by 180°. 3. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 1, characterized in that it has a connection solution located inside the socket outlet body (1), which allows electrical wires (6, 6a) of the same or different diameters to be immediately connected to each connection body (5) individually or in pairs as required, without any modification of any component. 4. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 1 or 2, characterized in that the bipolar configuration includes the following: a socket outlet body (1), connection bodies (5) located therein with the corresponding connectors (23), fixing and connecting screws (24) and a connection support (22), a cover plate (2) of the socket outlet body (1), in which the safety locking mechanism, frame (3), the assembly cover (4) and the fastening clips (7) for fastening the socket outlet body (1) at its intended location are placed. 5. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 1, 2 or 4, characterised in that the French configuration comprises the same components as the bipolar configuration according to the preceding claim, supplemented by the corresponding earthing contact (30) which is fixed to the socket outlet body (1) by means of a rivet (5 a), a screw (24'), and the associated connector (23) and connector support (22), and a cylindrical earthing contact pin (14); furthermore, the upper surface of the cover (4a) is provided with openings (17) through which, on the one hand, the contact pins (12) of the plug can pass and, on the other hand, the contact pin (14) of the earthing contact is led out. 6. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 1, 2 or 4, characterised in that the Schuko configuration comprises the same components as the bipolar configuration according to claim 4, supplemented by a Schuko-type earth connection (31) which is fixed to the socket outlet body (1) by a rivet (5a) or by a screw (24'), as well as the associated connector (23) and connector support (22), and in that instead of the cylindrical earth connection contact pin (14) there are two mirror-symmetrically arranged earth connection terminals (16); furthermore, the upper plate of the cover (4b) is provided with openings through which, on the one hand, the contact pins (12) of the plug can pass and, on the other hand, the lateral earth connection terminals (16) are led out. 7. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 1 or 4, characterized in that the rear parts of each connector body (5) ending in inwardly bent tongues (19) are fixed by elasticity in the corresponding sockets of the socket body (1), which inwardly bent tongues (19) at the same time define, on the one hand, a socket (20) providing adequate contact for receiving the corresponding contact pins (12) of the plug, and on the other hand, define an area (21) for accommodating the connection contacts. 8. A socket outlet with a safety locking mechanism and a multifunctional frame according to any one of claims 4 to 7, characterized in that the connection bodies (5) provided with a screw (24) are designed to include the connection support (22) and the screw connector (23), and furthermore the wings (22a) of the connection support (22) can be bent onto the screw connector (23), which thus forms a block and allows the said connector (23) to be tilted inside the connection body (5), thus allowing the connection of two electrical wires (6, 6a) of different diameters. 9. A socket outlet with a safety locking mechanism and a multifunctional frame according to claims 7 or 8, characterized in that the connection bodies (5) have substantially cylindrical protrusions (25) formed on both sides of their upper part, and funnel-like protrusions (26) formed by hair removal, the purpose of which is to facilitate the introduction and connection of the electrical wires (6), since they serve as guiding elements, and furthermore, this upper part of the connection body (5) ends in a folded part (27), which functions as a stop when the said electrical wire (6) is inserted, and since the cover plate (2) of the socket body (1) is preferably made of transparent, colored insulating material, this connection operation is clearly visible. 10. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 2, characterized in that in one possible embodiment of any configuration, the connection bodies (5) are preferably provided with a screwless quick-connecting device with double-bent connection springs (28) and with buttons (29) controlling the connection springs (28) from the outside, which allow the quick connection of two electrical wires (6, 6a), even of different diameters, to each connection body (5) by applying a simple pressure. 11. A socket outlet with a safety locking mechanism and a multifunctional frame according to claim 1, characterized in that the safety locking mechanism comprises a linearly movable lock (9) in the cover plate (2) of the socket body (1) and a spring (10), which spring (10) holds said lock (9) in the safety locking position, thereby preventing any device from penetrating the openings (11) of the cover plate (2) into which the contact pins (12) of the plug are to be inserted. 12. A socket outlet with a safety locking mechanism and a multifunctional frame according to claims 1 or 11, characterised in that the lock (9) has two inclined surfaces (18) on its upper side, corresponding to the openings (11) provided for the contact pins (12) of the plug, and is designed in such a way that when the two contact pins (12) are pressed simultaneously against the inclined surfaces (18), the force exerted causes the lock (9) to move linearly against the spring (10), and since the openings are thus freed, the two contact pins (12) can immediately penetrate up to the corresponding terminals, and after the contact pins (12) of the plug are pulled out, the lock (9) returns to its original safety locking position. 13. Socket with safety locking device and multifunctional frame according to claims 1, 11 or 12, characterized in that the cover (2) of the socket body (1) has a hinged roof (8) with openings (17) which, in the open state, leaves the interior of said cover (2) free and thus allows the lock (9) and the spring (10) to be properly positioned in the nests provided for them, then the hinged roof (8) is folded and closed, which thus properly fixes the lock (9) and the spring (10) in the safety position in which it prevents penetration into the socket body (1) through the openings (11) and the openings (17) of the hinged roof (8) coinciding with these as a result of folding. 14. Socket outlet with safety locking mechanism and multi-functional frame according to claims 1 or 11, characterized in that in this variant the safety locking mechanism is located close to the cover (4) of the assembly, since the design of the socket outlet body (1) means that the cover plate (2a) is suitable for receiving the holder (38) of the rotary lock (39) and the associated spring (40) as well as the locking mechanism cover (41). 15. Socket with safety locking mechanism and multifunctional frame according to claim 1 or 2, characterized in that said multifunctional frame (3), which can be used in the three configurations shown, has perpendicular pins (32) that can be inserted on both sides into corresponding receiving nests (37) of the socket body (1), where the substantially square projections (33) of the lateral recesses (34) abut, and thus said frame (3) is fixed at a certain distance from the socket body (1) necessary for the correct positioning of the components in the case of bipolar and French configurations, while when the frame (3) is fixed in a 180° rotated position, the perpendicular pins (32) rest on the notches (35) provided on the lateral edges (36) formed on their other side in the receiving nests (37), and thus the The multi-function frame (3) is located at a greater distance from the socket body (1), providing space for the components to be placed in the Schuko configuration. 1/11