RU2508581C1 - Electric connector - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention refers to protective devices of electric connectors and may be used for connection to power network of radiotechnical and electric apparatuses and instruments. Electric connector includes a plug with housing and contacts and a socket containing housing and contacts closed by locking mechanism in open state of connector. Locking mechanism includes at least one pair of sprung plates with locking elements. Plates are installed according to their opening order so that each consequent plate overlaps the previous one at least partially, and they are interconnected by locking mechanisms designed as slots on all the plates except the last one according to their opening order, and as projections starting from the second one. Plug housing is provided with projections of different altitude designed with possibility of interaction with corresponding plates in specified sequence. Quantity of projections on the plug housing is equal to quantity of plates installed with possibility of rotation in direction coinciding with direction of the plug input to the socket. Socket contacts are provided with current-conducting elastic members designed with possibility of grounding in connector open state and of grounding removal in closed state.

EFFECT: increasing protection degree of the socket contacts and safety upon diminishing connection effort, simplifying structure and improving reliability of connector operation.

2 cl

Description

The invention relates to protective devices for electrical connectors and can be used to connect electrical equipment and devices to the electrical network.

Known socket (US Pat. RF No. 2 125329 C1, H01R 13/453, publ. 01/20/1999, bull. No. 2), containing a housing with sockets, elastic contact elements, spring-loaded plates that are installed with the possibility of opening elastic contact elements when interacting with spring-loaded figured stops placed in the housing, the free ends of which interact with the plug.

The disadvantage of this device is that it does not provide sufficient reliability in operation due to the complex design.

The prototype of the claimed invention is a secure electrical connector (AS USSR No. 1282244 A1, H01R 13/44, publ. 01/07/1987, bull. No. 1). The connector consists of a plug with pins and a socket containing a housing, contact slots, a locking mechanism. Locking elements are introduced into the locking mechanism in the form of two two-shouldered L-shaped levers rigidly connected to the corresponding spring-loaded plates. The plates are mounted to move in a plane perpendicular to the direction of input of the plug into the outlet.

The disadvantage of the prototype is that in this connector, the direction of input of the plug into the socket does not coincide with the direction of rotation of the plates, which leads to a large joint force and large mechanical loads of structural elements at the moment the plug is connected to the socket. In addition, the known connector has a complex construction of parts. These shortcomings lead to a decrease in reliability in operation.

Moreover, the design of the prototype does not provide a sufficient degree of security, because the opening of the locking mechanism is carried out by simply moving the plate under the action of the contact elements of the fork.

The problem to which the invention is directed, is to create a safe and reliable electrical connector during operation.

The technical results obtained during the implementation of the invention are to increase the degree of protection of the contact elements of the socket, simplify the design, reduce the effort of connecting the connector and, as a result, increase the reliability of the device.

To achieve the indicated technical results, in an electrical connector consisting of a plug with a housing and contacts, and a socket containing a housing, contacts closed by a locking mechanism including at least one pair of spring-loaded plates with locking elements installed on the input side of the plug into the outlet with the possibility of rotation around its axes, it is new that the plates are installed in order of opening so that each subsequent one at least partially overlaps the previous one and are interconnected by by means of locking elements made in the form of grooves on all plates, except for the last in order of opening, and in the form of protrusions - starting from the second, the plug body is equipped with uneven protrusions made with the possibility of interaction in a given sequence with the corresponding plates, the number of protrusions on the housing plugs is equal to the number of plates mounted for rotation in the direction coinciding with the direction of input of the plug into the outlet.

In addition, the contacts of the outlet are equipped with conductive elastic elements made with the possibility of grounding in the open state of the connector and removing the ground in a closed.

The implementation in a certain way of the locking elements on the spring-loaded plates of the socket, installed with overlap and connected in the open state of the connector with their help, and the presence on the plug body of the corresponding opening elements (protrusions of different heights) allows to increase the degree of protection of the contacts of the socket due to the fact that the locking mechanism of the connector can only be opened with a plug specifically designed for this connector, which rotates the plates in a certain order. Moreover, the design of these elements is simple and allows you to make plates with the possibility of rotation in the direction coinciding with the direction of input of the plug into the socket, which leads to a decrease in the joint force of the connector. In addition, the claimed implementation of the locking mechanism allows you to exclude from the process of opening the contacts of the plug and thereby increase their service life. As a result of the above, the reliability of operation of the connector is increased.

The presence in the contacts of the outlet of conductive elastic elements made with the possibility of grounding in the open state of the connector and removing the grounding in the closed, can further increase the degree of protection of the connector, because in case of force breaking of the locking mechanism, it will be difficult to determine the working electrical circuits.

Figure 1 shows a cross section of an electrical connector in a closed state.

Figure 2 - appearance of the outlet.

Figure 3 is a section aa in figure 2, showing the position of the plates with locking elements and the implementation of the contacts of the socket.

Figure 4 is a section bB in figure 2, showing the position of the plates located one above the other.

Figure 5 is a cross section showing the implementation of the plug.

6 is a view D in figure 4, showing the implementation of the four protrusions of the fork body.

7 is a cross section showing the interaction of the elements of the plug and socket in the closing process.

The connector consists of a socket 1 and a plug 2 (see figure 1).

Rosette 1 contains:

- housing 3 (see figure 2);

- four plates 4, 5, 6, 7, and plates 4, 6 and plates 5, 7 mounted on the axes 8, 9, respectively, with the possibility of rotation in the direction coinciding with the direction of input of the plug into the socket, and spring-loaded with compression springs 11 (see Fig. 3);

- contacts 10 (see figure 3).

In the open state of the connector, the plates are installed in order of opening so that each subsequent partially overlaps the previous one, namely, 5 is installed above 4, 6 above 5 and 7 above 6 (see Fig. 4) and are interconnected by means of locking elements made in in the form of grooves 12 on the plates 4, 5, 6 and protrusions 13 on the plates 5, 6, 7, and the protrusions are in the grooves (see figure 3).

The contacts 10 are equipped with conductive elastic elements 14, made with the possibility of grounding, for example, through the conductive housing 3 in the open state of the connector (see figure 3) and removing the ground from the housing 3 in the closed state of the connector (see figure 1).

Plug 2 contains:

- the housing 15 and the contacts 16 (see figure 5).

The housing 15 has four uneven protrusions 17, 18, 19, 20 (see Fig.6), made with the possibility of interaction in a given sequence with the plates 4, 5, 6, 7.

The connector operates as follows.

When the plug 2 is inserted into the socket 1, the protrusions 17, 18, 19, 20 of the housing 15 begin to interact in a predetermined sequence with the corresponding plates of the socket 1, turning the plates 4, 6 relative to the axis 8, and the plates 5, 7 relative to the axis 9. The first one starts rotate under the action of the protrusion 17 of the plate 4 at an angle sufficient for the protrusion 13 of the plate 5 to exit from the groove 12 of the plate 4, freeing up the path for subsequent rotation under the action of the protrusion 18 of the plate 5 (see Fig. 7). Then, under the action of the protrusion 19, the plate 6 is rotated by an angle sufficient for the protrusion 13 of the plate 7 to exit from the groove 12 of the plate 6 (not shown in Fig.). And so on, depending on how many similar pairs of plates will be introduced into the structure.

After opening all the plates during the further insertion of the plug 2 into the socket 1, the contacts 10 are connected to the contacts 16. In this case, the conductive elastic elements 14 are disconnected from the housing 3 (see Fig. 1).

The connector is docked.

The undocking of the connector is in the reverse order.

Thus, the locking mechanism of the connector can only be opened with a plug specifically designed for this connector, providing a built-in algorithm for the interaction of locking elements. Otherwise, the locking elements will not allow the plates to rotate relative to their axes, because the protrusions by the surfaces Г will abut against the surface of the grooves B (see Fig. 3, Fig. 7), and free access to the contacts of the outlet will be closed.

The fabricated and tested models of the electrical connector have confirmed the increased reliability and safety of the device.

Claims (2)

1. An electrical connector, consisting of a plug with a housing and contacts and a socket containing a housing, contacts closed with a locking mechanism, including at least one pair of spring-loaded plates with locking elements mounted on the input side of the plug into the socket with the possibility of rotation around its axes, characterized in that the plates are installed in order of opening so that each subsequent one at least partially overlaps the previous one and are interconnected by means of locking elements made in the form of a call on all plates, except for the last one in the order of opening, and in the form of protrusions, starting from the second, the fork body is equipped with uneven protrusions made with the possibility of interaction in a given sequence with the corresponding plates, while the number of protrusions on the fork body is equal to the number of plates installed with the possibility of rotation in the direction coinciding with the direction of input of the plug into the outlet. 2. The connector according to claim 1, characterized in that the contacts of the outlet are provided with conductive elastic elements configured to ground in the open state of the connector and to remove the ground in a closed state.

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