CN106129735B

CN106129735B - Plug-in device with auxiliary contact

Info

Publication number: CN106129735B
Application number: CN201610624673.3A
Authority: CN
Inventors: 周金隆; 吴细雷
Original assignee: Wenzhou Deyuan Electric Co ltd
Current assignee: Wenzhou Deyuan Electric Co ltd
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2020-04-21
Anticipated expiration: 2036-07-29
Also published as: CN106129735A

Abstract

A connector device having auxiliary contacts, comprising: comprises a socket (1), a plug (2) and a position display device; the socket (1) is provided with a first conductor, a second conductor and a third conductor; the plug (2) is provided with a plug contact body which can be electrically connected with the first conductor, the second conductor and the third conductor; when the plug (2) is inserted into the socket (1), the plug contact body is connected with the first conductor at a test position, and the third conductor forms a test loop so as to trigger the position display device to display as a test position; in the connection position, the plug contact is connected with the second conductor and the third conductor to form a connection loop, so that the position display device displays the connection position. The invention has the technical effects of low cost and high reliability.

Description

Plug-in device with auxiliary contact

Technical Field

The invention relates to the technical field of power distribution cabinets, in particular to a plug-in device with auxiliary contacts.

Background

In modern power distribution network and engineering construction, the draw-out type low-voltage power distribution cabinet is widely applied to occasions such as power plants, substations and the like; the power distribution cabinet plays an important role in power distribution, motor control and electric energy conversion, distribution and control of lighting lamp power distribution equipment. The power distribution cabinet has the advantages of space saving, reliable operation, convenience in installation and maintenance, strong breaking capacity, multiple outgoing line loops and the like.

In the state standard GB7251, it is specified that in a withdrawable low-voltage distribution cabinet, each circuit should have an operating mechanism for propulsion and withdrawal in three positions, connection, test and isolation; the mechanism can be freely pushed in and pulled out and self-locked in position at corresponding positions, and has obvious marks at each position so as to identify the corresponding position of the drawout part.

The position display of the current power distribution cabinet is realized by adopting a position sensor, for example, chinese patent document CN103178464A discloses a drawer position device of a low-voltage switch cabinet, which is characterized in that a test sensor and a working sensor are mounted on a drawer partition plate on one side of a drawer positioning block, and the test sensor and the working sensor respectively correspond to the test position and the working position of the drawer positioning block; the sensor baffle is arranged on the side edge of the drawer 17, and the sensor baffle can block the test and working sensors when the drawer is in a test and working position, so that the drawer position is sent to the remote terminal. However, the prior art has at least certain limitations, firstly, the price of the sensor is high, the use cost is high, and the large-scale use is not facilitated; secondly, the sensor is easy to break down when in use, and once the sensor fails, the position of the drawer cannot be obtained; and thirdly, the installation of the sensor is complicated, which is not beneficial to the automatic production of the device.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects that the position sensor in the prior art is easy to lose effectiveness, high in cost and complex to install, to display the position information in a mode of forming different loops at the test and connection positions through the electric conductor, and the invention has the technical effects of better stability, lower cost and contribution to automatic production.

The invention provides a plug-in device with auxiliary contacts, which comprises a socket, a plug and a position display device, wherein the socket is provided with a plurality of connecting holes; the socket is provided with a first conductor, a second conductor and a third conductor; the plug is provided with a plug contact body which can be electrically connected with the first conductor, the second conductor and the third conductor; when the plug is inserted into the socket, the plug contact body is connected with the first conductor at a test position, and the third conductor forms a test loop so as to trigger the position display device to display as a test position; in the connection position, the plug contact is connected with the second conductor and the third conductor forms a connection loop, so that the position display device shows the connection position

The first conductor, the second conductor and the third conductor are conductors with certain elasticity; the first conductor, the second conductor and the third conductor are arranged in the socket in a press-fitting mode, and the plug contact is arranged on the plug in a press-fitting mode.

And a connecting position positioning groove is further formed in the socket, and when the plug is inserted into the connecting position, the plug contact body on the plug pushes the middle electric conductor into the connecting position positioning groove so as to form a stable connecting state.

The side edge of the connecting position positioning groove close to the outlet side of the socket, the upper side of the socket close to the outlet and the lower side of the socket close to the outlet are respectively provided with a first clamping groove, a second clamping groove and a third clamping groove which are used for fixing the end parts of the second conductor, the first conductor and the third conductor close to the outlet side of the socket.

The test position is closer to the entrance of the socket relative to the connection position, and the plug contact is in a circuit breaking state when located at other positions between the test position and the connection position.

The first conductor, the second conductor and the third conductor are respectively an upper conductive reed, a middle conductive reed and a lower conductive reed; the plug contact comprises contact reeds arranged on two sides of the plug in a pressing mode and arc-shaped contacts arranged at the top ends of the contact reeds, the upper conductive reeds are provided with downward protruding structures at test positions so as to be in contact with the plug contact at the test positions, the length of the middle conductive reeds is shorter than that of the upper conductive reeds and that of the lower conductive reeds, and the middle conductive reeds are connected with the plug contact only when the plug reaches a connection position.

The working principle is as follows: when the power plug is inserted into the socket and moves to a test position, the plug contact point body is connected with the first conductor and the third conductor in the socket, and the trigger position display displays that the current position is the test position; the operating state of the control circuit element in the extraction unit can be checked at the test position. When the plug is inserted to the connection position, the contact point of the plug is connected with the second conductor and the third conductor in the socket, and the trigger position display device displays that the current position is the connection position.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the position information is displayed by connecting the electric conductor with different loops at different positions, and the electric conductor is directly contacted with the plug contact body, so that the effect is more reliable, and the work is more stable; meanwhile, the electric conductor is cheap, the use cost is low, and the production cost can be greatly reduced; meanwhile, the electric conductor is convenient to be connected with the socket, and automatic production of equipment is facilitated, so that the technical scheme of the invention can greatly improve the production efficiency.

2. A very stable connection relationship can be formed at the connection position by arranging the positioning groove; and the first clamping groove, the second clamping groove and the third clamping groove are arranged to fix the electric conductors, so that the position stability of the electric conductors is ensured, and the normal operation of equipment is further ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the connector device with auxiliary contacts according to the present invention;

FIG. 2 is a schematic view of the present invention in a test position;

FIG. 3 is a schematic view of the present invention in the connected position;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is an enlarged view of portion B of FIG. 2;

description of reference numerals:

1-a socket; 2-a plug; 3-a contact spring; 4-arc shaped contacts; 5-plug terminals; 6-a first wiring hole; 7-upper conductive reed; 8-middle conductive reed; 9-test position; 10-lower conductive reed; 11-socket wiring holes; 12-a connection position locating slot; 13-a first card slot; 14-card slot two; 15-card slot three.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Implementation mode one

The auxiliary circuit plug-in unit consists of a plug 2 and a socket 1. Except the electric conductor for electric connection, the plug 2 and the socket 1 are formed by pressing insulating flame-retardant plastics at one time.

The plug 2 is provided with a contact spring 3 with an arc-shaped contact 4 at the top end in a pressing mode (the contact point of the plug can be a contact guide point in any form, the contact spring 3 with the arc-shaped contact 4 is preferred in the embodiment), the contact spring 3 is divided into an upper contact spring and a lower contact spring, and an insulating plastic isolating layer is arranged between the two contact springs 3. The plug terminal 5 is arranged at the rear end of the plug 2, the plug terminal 5 is provided with a first wiring hole 6 corresponding to a plug contact body, and the structural design of the plug 2 is basically similar to that of a common auxiliary circuit plug of various types. An upper conductive reed 7, a middle conductive reed 8 and a lower conductive reed 10 are pressed in the socket 1 (the conductor can be any type of conductor, and the conductive reed is preferred in the embodiment); the rear end of the socket 1 is provided with a socket wiring hole 11 corresponding to the upper conductive reed 7, the middle conductive reed 8 and the lower conductive reed 10, so that the wire outlet is facilitated; the position display device is connected with the outgoing line of the socket wiring hole 11 in a wireless or wired mode, so that the upper conductive reed 7 and the lower conductive reed 10 are switched on when the plug moves to the test position 9, the position display device is triggered to display that the current position is the test position 9, and the middle conductive reed 8 and the lower conductive reed 10 are switched on when the plug moves to the connection position, the position display device is triggered to display that the current position is the connection position. The conductive reed has the advantages of low cost and good effect because of simple structure, low price, good reliability and simple installation, and is convenient for realizing automatic production.

In order to form a more stable connection relationship at the connection position, the connection position is provided with a connection position positioning slot 12, when the plug 2 is inserted into the connection position, the arc-shaped contact 4 of the front end reed of the plug 2 pushes the middle conductive reed 8 in the socket 1 into the connection position positioning slot 12, so that a stable connection state is formed.

In order to facilitate the contact of the upper conductive reed 7 with the arc-shaped contact 4 at the front section of the plug 2, the upper conductive reed 7 is provided with a downward convex part at the test position 9, and when the plug is moved to the test position 9, the arc-shaped contact 4 at the front section of the plug 2 is easily contacted with the convex part, so that the connection is more stable and reliable.

In order to ensure the stability of the middle conductive reed 8, the upper conductive reed 7 and the lower conductive reed 10, a first clamping groove 13, a second clamping groove 14 and a third clamping groove 15 are respectively arranged on one side of the connecting position positioning groove 12 close to the outlet of the socket 1 and the upper end and the lower end of the socket 1 close to the outlet, one ends of the middle conductive reed 8 and the upper conductive reed 7 close to the outlet of the socket are arranged in an inverted Z shape, and one side of the lower conductive reed 10 close to the outlet of the socket is arranged in a Z shape; therefore, the ends of the upper conductive reed 7, the middle conductive reed 8 and the lower conductive reed 10 close to the outlet of the socket can be inserted into the card slot, so that the upper conductive reed 7, the middle conductive reed 8 and the lower conductive reed 10 are stably fixed at corresponding positions.

In order to make it more convenient to use, test site 9 is located closer to the outlet of socket 1 than the connection site, and middle conductive strip 8 is shorter than upper conductive strip 7 and lower conductive strip 10, and is in a circuit breaking state when plug 2 is moved to other positions between test site 9 and the connection site.

Second embodiment

The present embodiment differs from the first embodiment in that: the upper, middle and lower conductive reeds are set as left, middle and right conductive reeds, and the plug contact points at the end of the plug 2 are set to be arranged left and right (i.e., the up-down arrangement is changed into the horizontal arrangement). The rest is the same as the first embodiment.

Third embodiment

This embodiment differs from the above embodiments in that: in order to facilitate the production of the conductive reed, the middle conductive reed 8 can be set to be consistent with the lengths of the upper conductive reed and the lower conductive reed, but the other parts of the middle conductive reed 8 except the connection position are wrapped by insulators so as to ensure that the circuit is in a circuit disconnection state at other positions except the test position and the connection position.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A connector device having auxiliary contacts, comprising: comprises a socket (1), a plug (2) and a position display device; the socket (1) is provided with a first conductor, a second conductor and a third conductor; the plug (2) is provided with a plug contact body which can be electrically connected with the first conductor, the second conductor and the third conductor; when the plug (2) is inserted into the socket (1), the plug contact body is connected with the first conductor and the third conductor to form a test loop at a test position so as to trigger the position display device to display as a test position; the plug contact body is communicated with the second conductor and the third conductor to form a connection loop at a connection position of the plug, so that the position display device displays the connection position;

and a connecting position positioning groove (12) is further formed in the socket (1), and when the plug (2) is inserted into the connecting position, the plug contact body on the plug (2) pushes the second electric conductor into the connecting position positioning groove (12) so as to form a stable connecting state.

2. The connector device with auxiliary contacts of claim 1, wherein: the first conductor, the second conductor and the third conductor are conductors with certain elasticity; the first conductor, the second conductor and the third conductor are arranged in the socket (1) in a press-fitting mode, and the plug contact body is arranged on the plug (2) in a press-fitting mode.

3. The connector device with auxiliary contacts of claim 1, wherein: the side edge of the connecting position positioning groove (12) close to the outlet side of the socket (1) is provided with a first clamping groove (13), a second clamping groove (14) is arranged above the outlet side of the socket (1), a third clamping groove (15) is arranged below the outlet side of the socket (1), and the end parts of the second electric conductor, the first electric conductor and the third electric conductor close to the outlet side of the socket (1) are fixed through the first clamping groove (13), the second clamping groove (14) and the third clamping groove (15) respectively.

4. The connector device with auxiliary contacts of claim 1, wherein: the test position is closer to the entrance of the socket (1) than the connection position, and the plug contact is in a circuit-off state when located in other positions between the test position and the connection position.

5. The connector device with auxiliary contacts as claimed in any one of claims 1 to 4, wherein: the first conductor, the second conductor and the third conductor are respectively an upper conductive reed (7), a middle conductive reed (8) and a lower conductive reed (10); the plug contact body comprises contact reeds (3) arranged on two sides of the plug in a pressing mode and arc-shaped contacts (4) arranged at the top ends of the contact reeds.

6. The connector device with auxiliary contacts of claim 5, wherein: the upper conductive spring (7) has a downwardly projecting configuration in the test position to facilitate contact with the plug contact in the test position.

7. The connector device with auxiliary contacts of claim 5, wherein: the middle conductive reed is shorter than the upper conductive reed and the lower conductive reed, and is connected with the middle conductive reed only when the plug (2) reaches a connection position.