RU200669U1 - SWITCH ROTARY - Google Patents

Abstract

The utility model refers to a household switch for surface-mounted installation as part of lighting control networks. It is used with both hidden and open wiring. A household rotary switch containing a mechanism (1), an outer case (2) with slots (7) for latches, with guides (8) and a handle (3). The mechanism (1) has a centrally located pivot rod (4) and is enclosed in a housing in the form of a base (5) equipped with latches with a cover (6). Inside the base (5) there are contact groups (9) located in separate sockets with stops for the screws of the contact groups (9), the installed contacts are located close to the walls of the base (5), and the contact located in the rotary rod (4) serves as an elastic element ... In the cover (6) of the mechanism body (1) there are holes for attaching other types of outer cases and rollers (11) with elastic plates, and on the rotary rod (4) there are mating grooves (12) for the rollers (11), which fix the position of the rotary stem (4). The grooves (7) of the outer casing (2) are intended for hidden attachment to the mechanism casing (1) with latches. The technical result of the utility model is to improve the positioning accuracy of the rotary rod (12), to close the contacts inside the mechanism, and to have a hidden housing attachment. 1 wp f-ly, 3 dwg

Description

Engineering area:

The utility model refers to a household switch for surface-mounted installation as part of lighting control networks. It is used with both hidden and open wiring.

State of the art

Various designs of household switches are known, such as (SU1824 A1 and SU2114A). In these patents of switches, elements of the contact group are used as elastic elements to fix the rotary rod in the desired position (on or off) and to ensure clear switching. With this solution, the power contacts are subject to deformation, as a result of which the geometry of the contact parts changes over time and the contact deteriorates (due to a decrease in the clamping force between the contacts), which in turn leads to heating of the contacts and, under certain conditions, can cause a fire.

The closest switch 1OP (VOS) (RU 15812 U1). In this switch, as well as in the switches described in the above patents, the elements of the contact group are used as elastic elements that secure the cam, this solution is:

does not provide sufficient switching clarity even on new products; over time, switching clarity deteriorates due to deformation of the contacts.

leads to heating of the contacts due to deterioration of the clamping in the contact area, which can lead to fire.

This switch does not have an inner case of the mechanism, and when the outer case is opened, all live parts are open.

there is no possibility of hidden attachment of the case to the mechanism. This forces the use of additional fasteners, such as a screw or self-tapping screw, which spoils the appearance of the product.

The installation of the wire is carried out with a screw connection, which is not protected from complete unscrewing of the screw and loss of fasteners, both during installation and during transportation.

All of these shortcomings are corrected by the proposed technical solutions.

Disclosure of the essence of the utility model:

The problem solved by the utility model is the creation of a device with an improved technical and operational solution, which allows implementing various design options and materials used, and at the same time is convenient for installation and inexpensive in terms of cost. The switch body differs from the well-known model by the presence of grooves for hidden attachment to the mechanism having latches, as a result of which the body and mechanism elements are connected by means of a latch of one element to another without the use of additional elements (screws and self-tapping screws). In contrast to the well-known model, the contact groups in the mechanism of the utility model are located close to the wall of the mechanism base, and the special contact located at the base of the rotary rod is elastic, due to this solution, when the switch is switched, the contact groups are not deformed.

The technical result of the utility model is to improve the positioning accuracy of the rotary rod (12), to close the contacts inside the mechanism, and to have a hidden housing attachment. Depending on the composition of the contact groups, various connection schemes and switch assignments are implemented.

The utility model is used with both hidden and open wiring. The product is an assembly of a mechanism (1), a cylindrical body (2) and a handle (3) attached to the pivot rod (4) of the mechanism. The mechanism is closed in its own case, which is a round base (5) with legs and latches for the body and a cover (6) with latches for the base and fasteners for self-tapping screws for other types of cases. In the cover of the mechanism there are rollers (11) with special elastic plates, and on the swivel rod there are mating grooves (12) for the rollers, which fix the position of the rod, but allow it to rotate at a certain impact force. The switch body is equipped with slots (7) for concealed attachment to a mechanism with latches. This eliminates the need for fasteners such as a screw or self-tapping screw during assembly, which provides the following advantages:

reduces production costs due to the lack of individual fasteners;

reduces the weight of the finished product due to the lack of additional metal parts;

simplifies and speeds up assembly;

improves the appearance due to the fact that the fasteners are hidden inside the case.

On the sides of the grooves there are guides (8) that perform the following functions:

1.Improves the positioning of the body during assembly, which also greatly speeds up and simplifies assembly;

2. Prevents the housing from rotating once it is secured.

The design of the mechanism in the presented utility model provides the following advantages:

ease of installation due to monolithic construction;

excludes accidental contact with live parts even with the case removed;

the presence of separate (or additional) elastic elements inside the mechanism ensures clear switching and excludes the possibility of deformation of the contacts;

unification in relation to hulls;

variability of connection of various schemes.

Inside the mechanism, the contact group (9) is located in separate sockets, and the contact screws wrap around the special stops (13).

Thanks to this, the contacts are more securely fixed, and this gives the following advantages:

excludes the loss of contact group elements during transportation and installation;

facilitates assembly of the mechanism;

speeds up the installation and dismantling of wires.

Also in the body there are holes for wire entry and a rotary shaft of the mechanism.

Brief Description of Drawings:

The indicated advantages, as well as the features of this utility model, are explained by the best version of its implementation with links to the attached drawings:

fig. 1 - shows the appearance of the assembled switch and separately the mechanism;

fig. 2 - shows the switch mechanism and its body;

fig. 3 - shows the switch mechanism and cover.

Implementation of the utility model:

The device works as follows.

At the base of the switch mechanism in special sockets (9) there are contact groups, consisting of screws, nuts and contacts, to which power wires are connected. In the center there is a rotary rod with a special contact (10), which, rotating around its axis, closes or opens the contact groups. Depending on the composition of the contact groups, various connection schemes and switch assignments are implemented. In the cover of the mechanism there are rollers (11) with special elastic plates, and on the swivel rod there are mating grooves (12) for the rollers, which fix the position of the rod, but allow it to rotate at a certain impact force. The cover of the mechanism is connected to the base with latches, restricting access to the contact groups and fixing the axis of rotation of the rotary rod. Also on the mechanism there are stops (13) for the screws of the contact groups, which prevent the screws from completely unscrewing from the nuts, which increases the ease of installation.

There are latches on the protrusions of the switch body, which, when connected to the mechanism, enter the grooves (technical recesses), as a result of which the elements of the body and the mechanism snap into place, connecting with each other. After that, the switch handle is placed on the rotary rod protruding from the body and screwed to it with a self-tapping screw through a special hole. In this case, the presence of guides ensures the correct positioning of the body relative to the mechanism and prevents it from rotating after fixing. The mechanism and the body of the product are made of polymeric materials, preferably based on ABS plastic, while it is possible to use other materials.

Claims (2)

1. A household rotary switch containing a mechanism (1), an outer case (2) with grooves (7) for latches, with guides (8) and a handle (3), while: the mechanism (1) has a rotary rod located in the center ( 4) and is enclosed in a housing in the form of a base (5) equipped with latches with a cover (6); inside the base (5) there are contact groups (9) located in separate sockets with stops for the screws of the contact groups (9), the installed contacts are located close to the walls of the base (5), and the contact located in the rotary rod (4) serves as an elastic element ; in the cover (6) of the body of the mechanism (1) there are holes for attaching other types of outer cases and rollers (11) with elastic plates, and on the rotary rod (4) there are mating grooves (12) for the rollers (11), which fix the position of the rotary stem (4); the grooves (7) of the outer casing (2) are intended for hidden attachment to the mechanism casing (1) with latches. 2. Rotary switch according to claim 1, characterized in that the elements of the outer casing (2) and the mechanism (1) are connected by latching one element to another without the use of additional fasteners.

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