CN205900999U - A kind of anti-open circuit connector - Google Patents

Abstract

The utility model discloses a prevent connector of opening a way, including socket and plug, socket and plug can be connected by the formula, the socket is including locating its inside socket contacts spare and preventing the device of opening a way, when socket and plug disconnection, each socket contacts spare of socket is through preventing the device intercommunication of opening a way, when socket and connector assembly, each socket contacts spare of socket does not communicate. This connector job stabilization nature, security are high, plug and socket when the normal connection, the connection of socket contacts spare connection assurance signal or power on contact pin and the socket on the plug, plug and socket when normally breaking off, automatic short circuits of all socket contacts spares in the socket to guarantee CT output short circuit, can not produce the incident because of CT's secondary output, and do not need to carry on in addition the short circuit operation, simple structure, convenient operation has strengthened system security nature.

Description

A kind of anti-open circuit connector

【Technical field】

The utility model relates to the technical field of electronic components, in particular to an open circuit preventing connector.

【Background technique】

With the development of society, more and more attention has been paid to the safety of power equipment. During the implementation of power system distribution automation, it is necessary to connect the current signal from the primary switchgear to the distribution automation terminal device through the connector. The general structure of ordinary aviation connectors is that the plug is equipped with pins, and the socket is equipped with jacks. After mating, the signal or power connection is realized, and the connection will be disconnected after separation; It can only be carried out after the power failure of the line, otherwise, when the switchgear side of the distribution network is open, a high open circuit voltage will be generated, causing personal casualties, equipment damage and other accidents.

【Content of invention】

In view of this, the utility model provides an anti-open circuit connector, which is applied to the switch cabinet of the distribution network and used for the primary CT output, that is, the current sampling circuit of the switch cabinet and the terminal of the station, as a plug and socket After disengagement, all jack contacts of the socket are automatically short-circuited to ensure that the CT output is short-circuited, and no safety accidents will occur due to the secondary output of the CT.

The utility model adopts the following scheme to construct an anti-open circuit connector, including a socket and a plug, and the socket and the plug can be connected in a mating manner; When the socket is open, the jack contacts of the socket are connected through the anti-open circuit device; when the socket and the plug are connected, the socket contacts of the socket are not connected.

Preferably, the socket contacts and the anti-open circuit device are arranged in the socket at intervals;

The plug includes a pin and a push rod, and the pin and the push rod are arranged in the plug at intervals;

The relative position of the pin corresponds to the relative position of the socket contact, and the relative position of the push rod corresponds to the relative position of the anti-open circuit device;

The anti-open circuit device includes a spring and a contact block; when the socket and the plug are disconnected, one end of the contact block abuts on the spring, and the other end abuts on the adjacent socket contact; the socket and the plug When connected, the pins are in contact with the socket contact, and the push rod pushes the contact block to separate the contact block from the socket contact.

Preferably, a folded surface is provided in the middle of the socket contact piece, and the outward end of the contact block abuts against the folded surfaces of two adjacent socket contact pieces.

Preferably, the anti-open circuit device and the socket contacts are evenly spaced.

The beneficial technical effects of the utility model are: the connector of the utility model has high working stability and safety, and when the plug and the socket are connected normally, the connection of the pin on the plug and the socket contact on the socket ensures the connection of the signal or power supply; When the plug and the socket are normally disconnected, all the socket contacts in the socket are automatically shorted to ensure that the CT output is shorted, and no safety accidents will occur due to the secondary output of the CT; and no additional short circuit operation is required, the structure Simple, easy to operate, enhanced system security.

【Description of drawings】

Figure 1 is a three-dimensional schematic diagram of an angle of the six-core socket of the anti-open circuit connector in Embodiment 1;

Figure 2 is a schematic cross-sectional view of an angle of the six-core socket of the anti-open circuit connector in Embodiment 1;

Figure 3 is a three-dimensional schematic diagram of an angle of the six-pin plug of the anti-open circuit connector in Embodiment 1;

Figure 4 is a schematic cross-sectional view of an angle of the six-core plug of the anti-open circuit connector in Embodiment 1;

Fig. 5 is a schematic cross-sectional view of an angle of mating of the six-pin plug and the six-pin socket of the anti-open circuit connector in the first embodiment.

【detailed description】

In order to make the technical scheme and technical effect of this patent clearer, the specific implementation manner of this patent will be described in detail below in conjunction with the accompanying drawings and examples.

Embodiment one:

As shown in FIGS. 1 to 4 , the anti-open circuit connector in this embodiment includes a socket 1 and a plug 2 , and the socket 1 and the plug 2 can be matedly connected.

The direction P in FIG. 2 is defined as the front of the socket 1 . The socket 1 includes a socket housing 11 , a jack plate 12 , a jack plate pressing plate 13 , jack contacts 14 and an anti-open circuit device 15 . The jack plate 12 is engaged with the jack plate pressing plate 13 and is arranged in the socket housing 11 to axially form a jack accommodating cavity 16 and an open-circuit preventing device accommodating cavity 17. The cavities 17 are arranged at intervals, and the jack contacts 14 are set in the jack accommodating cavities 16 . The anti-open circuit device 15 is located in the anti-open circuit device accommodation cavity 17, and it includes a spring 151 and a contact block 152; the spring 151 and the contact block 152 are sequentially arranged in the anti-open circuit device accommodation cavity 17 from the inside to the outside, and the spring 151 is prevented. The end stop of the open-circuit receiving chamber. There is a folded surface 141 in the middle of the socket contact piece 14, one end of the contact block 152 abuts on the spring 151, and the other end surface abuts on the folded surface 141 of the socket contact pieces 14 on both sides thereof, so that each socket contact piece 14 communicate with each other. The front end of the receptacle contact 14 is in contact with the pin 24 described below, and the rear end is fixed with a wire.

The plug 2 includes a plug housing 21 , a pin holder 22 , a push rod 23 and pins 24 . The pin seat 22 is disposed in the plug housing 21 , the pin seat 22 is axially provided with pins 24 , and a push rod 23 is provided between two adjacent pins 24 . The relative position of the pin 24 corresponds to the relative position of the socket contact 14 one by one, and the relative position of the push rod 23 corresponds to the position of the contact block 152; and the pin 24 can be inserted into the socket contact 14 to interfere with it. Cooperate, the ejector rod 23 can be inserted into the anti-open circuit accommodating cavity and contact the end of the contact block 152 to further compress the spring 151, so that the contact block 152 is separated from the folded surfaces 141 of the jack contacts 14 on both sides.

6-core socket 1 and plug 2, the socket 1 is provided with 6 jack accommodation chambers 16 evenly spaced on the circumference around the axis, and the 6 anti-open circuit accommodation chambers are evenly spaced in 2 adjacent jack accommodation chambers between 16; and corresponding to the socket 1, there are 6 pins 24 evenly spaced on the circumference around the axis of the plug 2, and 6 ejector pins 23 are evenly spaced between 2 adjacent pins 24. The contact block 152 is made of conductive material, and the push rod 23 is made of non-conductive material.

The working principle of the socket 1 and the plug 2 in this embodiment is as follows: as shown in Figure 5, the socket 1 and the plug 2 are plugged together, the pin 24 on the plug 2 is in contact with the jack contact 14 in the socket 1, and the push rod 23 Enter the cavity 17 of the anti-open circuit device, contact the contact block 152 and then push the contact block 152 inward, the spring 151 is compressed, the contact block 152 is separated from the socket contact 14, so that each pin 24 is connected to the socket 1 separately, Realize the function of signal transmission alone; after the socket 1 and the plug 2 are separated, the pin 24 on the plug 2 is separated from the jack contact 14 in the socket 1, the signal transmission is disconnected, and the contact block 152 is under the action of the restoring force of the spring 151 Moving outward until touching the folded surface 141 of the socket contact 14 , each contact block 152 communicates with the adjacent socket contacts 14 , so the socket contacts 14 of the entire socket 1 communicate with each other. Therefore, when the socket 1 and the plug 2 are connected, normal signal transmission can be realized, and after disconnection, the open-circuit voltage at the secondary output terminal of the CT can be avoided, which is safe and reliable.

The above descriptions are only preferred embodiments of this patent, and are not intended to limit this patent. For those skilled in the art, this patent may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this patent shall be included within the scope of protection of this patent.

Claims (4)

1. An anti-open circuit connector, comprising a socket and a plug, the socket and the plug can be connected in a mating manner; the socket includes a jack contact and an anti-open circuit device located inside it, and it is characterized in that: the socket and the plug are disconnected When the socket is open, the jack contacts of the socket are connected through the anti-open circuit device; when the socket and the plug are connected, the socket contacts of the socket are not connected. 2. The anti-open circuit connector according to claim 1, characterized in that: the socket contact and the anti-open circuit device are arranged in the socket at intervals; The plug includes a pin and a push rod, and the pin and the push rod are arranged in the plug at intervals; The relative position of the pin corresponds to the relative position of the socket contact, and the relative position of the push rod corresponds to the relative position of the anti-open circuit device; The anti-open circuit device includes a spring and a contact block; when the socket and the plug are disconnected, one end of the contact block abuts on the spring, and the other end abuts on the adjacent socket contact; the socket and the plug When connected, the pins are in contact with the socket contact, and the push rod pushes the contact block to separate the contact block from the socket contact. 3. The anti-open circuit connector according to claim 2, characterized in that: the middle part of the socket contact is provided with a folding surface, and the outward end of the contact block abuts against the two adjacent socket contacts. on the fold. 4. The anti-open circuit connector according to claim 2 or 3, characterized in that: the anti-open circuit device and the socket contacts are evenly spaced.