RU2666748C2 - Double wall socket - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention relates to electrical socket-outlets. For this purpose, fixed double socket-outlet (102, 103) is disclosed, which is provided with cover-plate (101) and a cylindrical mounting box, wherein the size of the mounting box is arranged for a single socket-outlet and the main part of socket-outlet (102, 103) is arranged to fit into the space defined by the mounting box. According to the invention first axis (117) of the outlet openings of first and second socket-outlet (102, 103) is arranged at an angle between 38 and 42° to second axis (115) of first and second socket-outlet (102, 103).

EFFECT: technical result is high reliability of using the socket-outlet.

8 cl, 10 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to electrical outlets. More specifically, this invention relates to integral twin sockets.

BACKGROUND OF THE INVENTION

As the number of household appliances increases, the need for electrical outlets is constantly increasing. In homes or offices, the usual solution is to use electrical extension cords and multiple portable power sockets to increase the number of free sockets. Since the buildings have fixed mounting boxes for outlets, it is not possible to install wall outlets in larger numbers.

One technical solution is described in patent document FI 86927, in which a double wall outlet, in which two outlet openings form an axis of symmetry, tilted at an angle with respect to the sides of a rectangular wall outlet, so that the double wall outlet can be installed in a cavity, limited to the mounting frame. This frame is designed for a single socket outlet with grounding (Schuko, or European type).

Most mains plugs have a 90 ° connection case. When the outlet openings of the plug sockets are located on the same center line, the wires passing at an angle with the plugs inserted into the socket may partially overlap. In such cases, the corner plugs are not suitable, or the second plug can be inserted by positioning the wire so that it extends upward. However, when the wire goes up, it can spoil the look.

One-piece plug sockets should not require any maintenance or repair for at least 30 years, even under harsh operating conditions. Existing designs are made as simple as possible to improve reliability. The symmetrical design helps maintain the shape of the power unit of the receptacle. The prior art socket unit is designed so that a dual socket cannot be installed in a mounting box of any other shape other than the shape of the symmetrical unit.

SUMMARY OF THE INVENTION

The present invention provides an integral dual socket outlet made with a protective panel and a cylindrical mounting box, while the size of the mounting box corresponds to a single plug socket, and the main part of the socket may enter a cavity bounded by the mounting box. In accordance with this invention, the first axial line of the outlet openings of the first and second receptacle is located at an angle in the range 38 ° -42 ° to the second axial line of the first and second receptacle. In one embodiment, two openings for receptacle contacts form a parallel center line for the first and second receptacle. In another aspect of the invention, the outlet openings are formed on an asymmetric center line with respect to the rectangular protective panel, and the holes for the electric plug are located at the same angle to the side of the protective panel.

In one embodiment, the plug sockets are grounded sockets. In one embodiment, the protective panel is rectangular in shape and the centerline of the outlet openings is angled in the range 38 ° -42 ° to the side of the rectangular protective panel. In one embodiment, the main part of the socket contains rectilinear integral links intended for internal connection in parallel to the socket contacts between the two holes of the socket contacts. In one embodiment, the main part contains asymmetric one-piece links for the internal connection of grounding contacts between two receptacles.

In one embodiment, the integral links for the internal connection of grounding contacts are made of a single metal part having a first grounding contact, a second grounding contact and a flat asymmetric link between the first and second grounding contacts. In one embodiment, the integral links for the internal connection of grounding contacts are made of a single flat metal part, curved to give it a shape. In one embodiment, a planar asymmetric link comprises a guide section configured to attach it to the ground terminal and hold the internal connection in the main part, and an opening made in the first and second ground contact and intended to fix the internal connection to the main part of the socket. In one embodiment, the integral link for internal connection in parallel to the socket contacts is made of a single metal part, curved to give it a shape.

This invention provides the ability to install a dual receptacle in a wiring box having a cavity formed for a single outlet. The outlet openings for the clamps are parallel, respectively, two corner plugs and wires can be inserted into both plug sockets at the same time. This design is robust, preventing deformation of a double socket or grounding contacts when the plug is inserted, without the risk of reducing the reliability of the socket.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are provided to further understand the invention and form part of this description, illustrate embodiments of the invention and, together with the description, help explain its principles. In the drawings:

FIG. 1 depicts one twin socket in accordance with this invention;

FIG. 2a and 2b illustrate exemplary combinations of a protective panel and an integral link for internally connecting grounding contacts;

FIG. 3a and 3b illustrate an integral part with grounding contacts;

FIG. 4 shows an exemplary embodiment of a main part shown at a different viewing angle;

FIG. 5a and 5b depict examples of an assembly unit comprising a cover plate and a main body; and

FIG. 6a and 6b depict examples of another embodiment of the present invention with a different ground configuration.

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings.

The basic requirements for the receptacles of this invention are set forth in International Standard IEC 60884-1, Edition 3.1, 2006-07, incorporated herein by reference. This receptacle is also known as a grounded receptacle (Schuko).

The mounting box for a single Schuko receptacle is usually cylindrical. A circular shape with a circular cross-section defines a cavity suitable for any devices that need to be inserted into the box. The standard imposes certain requirements on sockets. The sockets that must be installed in the box are structurally designed so that the ends of the wires can be prepared after mounting the box in the desired position, but before installing the socket in the box. Multiple socket outlets with a common base are equipped with one-piece links for internal connection in parallel to the socket contacts. The fastening of these links does not depend on the connection of the supply wires.

FIG. 1 depicts one illustrative embodiment, showing a protective panel 101 that covers the front of the main part of the dual receptacle 102. Grounding contacts 104 attached to the main part pass through the protective panel 101. The protective panel 101 and the link for internal connection of grounding clamps and corresponding pins 104 are connected by two screws through holes 105, 106. A plug socket is a device containing socket pins 107, 108, 109, 110 designed to fit into a connected ie with the pins of the plug and having terminals for connection of wires. The cover plate 101 has openings 111, 112, 113, 114 for receptacle contacts.

A dual receptacle is inserted into the junction box, with holes 111, 112, 113, 114 for receptacle contacts of the first and second receptacles 102, 103 located either horizontally or vertically. The holes 111, 112 of the socket contacts of the first socket 102 form an axial line 115 parallel to the center line formed by the holes 113, 114 for the socket contacts of the second socket 103.

In this example, the second outlet center line 115 is positioned at an angle of 40 ° to the side 116 of the rectangular protection panel 101. An angle of 40 ° provides an optimum result with the largest thickness of material between the two receptacles and the mounting box. Angles from 38 ° to 42 ° are possible for this configuration. The first center line 117 is determined, for example, by passing through the first opening 113 of the receptacle and through the second opening 114 of the receptacle. In FIG. 1, this is shown by a line 17 that is tangential to the holes 113, 114. In this example, the rectangular protective panel 101 has the shape of a square, however, the invention is not limited to the rectangular protective panel, the protective panel 101 can be of any shape, for example round. The placement of the first and second receptacles 102, 103 is asymmetric about the axis of symmetry defined by the square protective panel 101. The axis of symmetry of the square protective panel 101 is defined as a line extending from one corner to the opposite corner.

FIG. 2a and 2b illustrate one embodiment of the invention, and they show a combination of a protective panel 101 and an integral part 201 for internally connecting the grounding contacts 104 between the first and second receptacles 102, 103. The integral part 201 has an asymmetric shape. FIG. 3a and 3b further illustrate one example of an integral link 201 with grounding contacts 104. In one example, this assembly is made of one piece of sheet metal bent to give it the desired shape. In another exemplary building block, the integral link 201 and the grounding contacts 104 are separate parts joined together, for example, by riveting. Link 201 has a guide portion 202 connected to a ground terminal. Ground terminal not shown.

FIG. 4, illustrating one embodiment of the invention, shows the body 401 from a different viewing angle. The main part 401 contains rectilinear integral links intended for internal connection in parallel to the socket contacts between the two holes of the socket contacts. The first straight link 402 is configured to internally connect the socket contacts 107 and 110, and the second straight line 403 is configured to internally connect the socket contacts 108 and 109. In this example, the first link 402 and the second link 403 are made of one piece of sheet metal bent from giving it shape. The wire clamps not shown in the drawings, in this example, are located in the cavity behind the links 402, 403.

FIG. 6a and 5b illustrate one example of a building block in which the cover panel 101 and the body 401 are connected together. These drawings show two different side views of the building block.

In FIG. 6a and 6b show another example of the proposed dual receptacle. In this example, the spatial arrangement of the grounding contacts is changed. Sockets 102 include a grounding pin 601 extending from the socket panel. The corresponding one-piece link 201 is made respectively with the possibility of connection to the grounding pins 601.

In addition, if necessary, one or more of the above functions may be optional or may be used in combination. Despite the fact that various aspects of the present invention are set forth in the independent claims, however, other aspects thereof contain other combinations of properties from the considered embodiments and / or dependent claims with the properties of the independent claims, and not only combinations expressly stated in the claims.

The specialist should be obvious that in accordance with the development of technology, the main idea of the invention can be implemented in various ways. Thus, the invention and its embodiments are not limited to the above examples, but may vary within the scope of the claims.

Claims (8)

1. One-piece double socket (102, 103), made with a protective panel (101) and a cylindrical mounting box, the size of the mounting box corresponding to a single socket, and the main part of the socket (102, 103) is made with the possibility of installation in a cavity, bounded by a mounting box, characterized in that the first axial line (117) of the outlet openings of the first and second receptacles (102, 103) is located at an angle of 38 to 42 ° to the second axial line (115) of the first and second receptacles (102, 103 ) 2. The dual socket according to claim 1, characterized in that the socket (102, 103) are grounded sockets. 3. The dual socket outlet according to claim 1, characterized in that said main part (401) contains straight-line integral links (402, 403) for internal connection in parallel to socket contacts (108-109, 107-110) between two holes of socket contacts . 4. Dual socket according to any one of paragraphs. 1-3, characterized in that the said main part (401) contains an asymmetric one-piece link (201) for the internal connection of grounding contacts (104) between the first and second receptacle (102, 103). 5. A dual socket according to claim 4, characterized in that the integral link (201) intended for the internal connection of grounding contacts (104) is made of a single metal part containing a first grounding contact (104) and a second grounding contact (104) and a flat asymmetric link (201) passing between the first and second grounding contacts (104). 6. A dual socket outlet according to claim 4, characterized in that the integral link (201) intended for the internal connection of grounding contacts (104) is made of a single flat metal part curved to give it a shape. 7. The dual socket according to claim 6, characterized in that the flat asymmetric link (201) contains a guide section (202) made with the possibility of its connection to the grounding clamp and holding the internal connection in the specified main part (401), while the first and second grounding contacts (104) made a hole (105, 106) for attaching the internal connection to the specified main part (401). 8. The double socket according to claim 3, characterized in that the integral link (402, 403), intended for internal connection in parallel with the socket contacts (108-109, 107-110), is made of one metal part, curved to give it forms.

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