CN113659401A

CN113659401A - Cable connector

Info

Publication number: CN113659401A
Application number: CN202110964528.0A
Authority: CN
Inventors: 朱迪
Original assignee: Anhui Institute of Information Engineering
Current assignee: Anhui Institute of Information Engineering
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-11-16
Anticipated expiration: 2041-08-19
Also published as: CN113659401B

Abstract

The invention discloses a cable connector, which relates to the field of power supply and comprises a female plug and a male plug, wherein the female plug comprises a main shell, a wiring end cover, a limiting structure and a clamping structure, the wiring end cover is fixedly connected to the left end of the main shell, the clamping structure is arranged in the main shell, the limiting structure can change the clamping state of the clamping structure when a fire disaster happens, a conductive sliding column can penetrate through the wiring end cover and slide to a position contacting with a wiring terminal in the process that the male plug is inserted into the shell, the conductive sliding column is uncharged under the condition that the female plug of the connector is not butted with the male plug, the electric shock accident when a worker carelessly and mistakenly touches the conductive sliding column is avoided, and the conductive sliding column is uncharged under the normal condition, so that a cable can be quickly connected under the condition of no power interruption, the male plug realizes self-locking under the action of an electromagnet, and the two ends of the connector can be automatically disconnected when the fire disaster happens, the power supply is cut off, and the safety is high.

Description

Cable connector

Technical Field

The invention relates to the field of power supply, in particular to a cable connector.

Background

The cable connector is an intermediate body for connecting two cables, most of the existing cable connectors are connected by bolts, the connection is inconvenient, a binding post in the connector is electrified under the condition of electrification, the power-off treatment is required during the connection, and otherwise, one end of an electrified wire is easy to cause electric shock danger.

In addition, most of the existing connectors do not have the function of automatic disconnection in fire, especially in a distribution room with concentrated electric wires, so that when a fire occurs, in order to prevent the electric wires damaged by burning from causing secondary electric shock hazard to indoor personnel or firefighters, the main power supply switch needs to be manually turned off, however, when the fire occurs, the main power supply switch sometimes has the situation that the electric arc is difficult to turn off or be released, and the safety risk of personnel in the area is increased.

Disclosure of Invention

It is an object of the present invention to provide a cable connector to solve the above problems occurring in the prior art.

The technical scheme of the invention is as follows: the utility model provides a cable connector, includes female plug and public plug, female plug includes the main casing body, wiring end cover, limit structure and clamping structure, wiring end cover fixed connection is at the left end of the main casing body, the main internal two chucking grooves that are equipped with of casing, the chucking inslot is equipped with clamping structure, clamping structure is used for the public plug of chucking, limit structure can change the chucking state of clamping structure when the conflagration breaing out, main internal sliding connection of casing has electrically conductive traveller, the left side of electrically conductive traveller is equipped with the terminal, the terminal is located the wiring end cover, and its left end is equipped with the wiring ring, electrically conductive traveller can insert the casing in-process at public plug, passes the wiring end cover and slides to the position with the terminal contact.

Preferably, the male plug includes a fixed guide pillar, a butt-joint body and an electromagnet, the fixed guide pillar is fixedly connected in the butt-joint body, the butt-joint body extends from two ends of the fixed guide pillar, a wire connecting ring is arranged at the right end of the fixed guide pillar, an annular groove for clamping a clamping structure is arranged on the butt-joint body, the electromagnet is fixedly connected to the outer side of the butt-joint body, a thermal expansion pipe is arranged on a power supply loop of the electromagnet, conductive liquid is filled in the thermal expansion pipe, and conductive columns connected with a power supply line of the electromagnet are arranged at two ends of the thermal expansion pipe.

Preferably, be equipped with the groove that resets, middle groove and butt joint groove in the main casing body, the groove that resets and the butt joint groove run through the left and right sides both ends of the main casing body respectively, middle groove intercommunication resets groove and butt joint groove, the outside of chucking groove intercommunication butt joint groove and main casing body.

Preferably, a sliding column blocking piece is arranged in the middle of the conductive sliding column and is connected in a reset groove in a sliding mode, a sliding column reset spring is arranged between the sliding column blocking piece and the wiring end cover, and the conductive sliding column is connected with the middle groove in a sliding mode.

Preferably, the wiring end cover includes left end cover and right-hand member lid, the connection can be dismantled on the main casing body through the screw with the right-hand member lid to the left end cover, the terminal is located between left end cover and the right-hand member lid, and is equipped with pressure boost spring between terminal and the left end cover, the right-hand member is covered and is equipped with the through-hole that can supply electrically conductive traveller to pass.

Preferably, limit structure includes sliding closure and sliding closure reset spring, sliding closure sliding connection is in the outside of the main casing body, sliding closure reset spring locates between sliding closure and the main casing body, the right side inner wall of sliding closure is the circular conical surface.

Preferably, the chucking structure is including blocking the post, the outer end of card post is equipped with the ball, the ball is located the outside of the main casing body, card post and chucking groove sliding connection, be equipped with salient structure on the card post, the cover is equipped with card post reset spring on the card post between protrusion structure and the chucking groove.

Preferably, the main casing body comprises two branch casings that the structure is the same, two branch casings pass through the connecting hole and can dismantle the connection together, main casing body, wiring end cover and to the connector be insulating material.

The invention has the advantages that:

1. the female plug of this connector is under the condition of not butt joint with public plug, electrically conductive traveller be under traveller reset spring's effect not with between the terminal contact, so electrically conductive traveller with external probably contact is uncharged this moment, just so can avoid the staff to miss the electric shock accident when touching electrically conductive traveller by mistake carelessly, improved the security of connector, and because electrically conductive traveller is uncharged under the normal condition, so can be under the condition of uninterrupted power, quick connection cable.

2. The male plug carries out the chucking through the card post, and under the circumstances of electro-magnet work, when the male plug inserted in the main casing body, the adsorbable sliding closure of electro-magnet removed to the ball direction, and the conical surface can push down the ball on the sliding closure, makes the card post card advance in the recess of butt joint body, realizes the auto-lock, compares in bolted connection, connects more convenient and fast. Meanwhile, the fixed guide post pushes the conductive sliding post to be in contact with the binding post, so that the electric communication between the cables is realized;

3. when a fire disaster happens, the conductive liquid in the thermal expansion pipe is thermally expanded, the thermal expansion pipe is cracked, an electromagnetic power supply loop is cut off, the electromagnet is powered off, the sliding cover is moved leftwards to reset under the action of a sliding cover reset spring, the clamping column is reset in the same way, the butt joint body is not acted by the clamping column and is bounced off by the sliding column reset spring, so that the two ends of the connector are automatically disconnected, a power supply is cut off, the reaction is rapid, manual operation is not needed, the safety is high, and the electric connector can be widely used in power supply places.

Drawings

Fig. 1 is a sectional view of the entire structure of the connector;

FIG. 2 is a schematic structural view of a female plug;

FIG. 3 is a schematic structural diagram of the main housing;

fig. 4 is a schematic structural view of the heat expansion pipe.

In the figure: 1-female plug, 11-main shell, 111-clamping groove, 112-reset groove, 113-middle groove, 114-butt joint groove, 11 a-connecting hole, 12-wiring end cover, 121-left end cover, 122-right end cover and 123-pressurizing spring;

13-limit structure, 131-sliding cover, 132-sliding cover reset spring;

14-clamping structure, 141-clamping column and 142-clamping column return spring;

15-conductive sliding column, 151-sliding column blocking piece, 152-sliding column return spring and 16-binding post;

2-male plug, 21-fixed guide post, 22-butt joint body, 221-annular groove, 2-electromagnet, 24-thermal expansion tube, 241-conductive liquid and 242-conductive column.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, a cable connector includes a female plug 1 and a male plug 2, the female plug 1 includes a main housing 11, a terminal cover 12, a position limiting structure 13 and a clamping structure 14, the terminal cover 12 is fixedly connected to the left end of the main housing 11, two clamping grooves 111 are provided in the main housing 11, the clamping structure 14 is provided in the clamping grooves 111, the clamping structure 14 is used for clamping the male plug 2, the position limiting structure 13 can change the clamping state of the clamping structure 14 when a fire occurs, a conductive sliding column 15 is slidably connected in the main housing 11, a binding column 16 is provided on the left side of the conductive sliding column 15, the binding column 16 is located in the terminal cover 12, and a wire connecting ring is provided on the left end thereof, the conductive sliding column 15 can pass through the terminal cover 12 and slide to a position contacting the binding column 16 when the male plug 2 is inserted into the housing.

In this embodiment, the male plug 2 includes a fixed guide post 21, a butt joint body 22 and an electromagnet 23, the fixed guide post 21 is fixedly connected in the butt joint body 22, and both ends of the fixed guide post extend out of the butt joint body 22, a wire connecting ring is arranged at the right end of the fixed guide post 21, an annular groove 221 for clamping the clamping structure 14 is arranged on the butt joint body 22, the electromagnet 23 is fixedly connected at the outer side of the butt joint body 22, a thermal expansion pipe 24 is arranged on a power supply loop of the electromagnet, a conductive liquid 241 is filled in the thermal expansion pipe 24, and both ends of the thermal expansion pipe 24 are provided with a conductive post 242 connected with a power supply line of the electromagnet 23. The conductive liquid 241 may be a substance with a large thermal expansion coefficient, such as mercury, and the thermal expansion tube 24 may be made of glass.

In this embodiment, a reset groove 112, an intermediate groove 113 and an abutting groove 114 are formed in the main housing 11, the reset groove 112 and the abutting groove 114 respectively penetrate through the left end and the right end of the main housing 11, the intermediate groove 113 communicates with the reset groove 112 and the abutting groove 114, and the clamping groove 111 communicates with the abutting groove 114 and the outer side of the main housing 11.

In this embodiment, a strut stopper 151 is disposed in the middle of the conductive strut 15, the strut stopper 151 is slidably connected in the reset groove 112, a strut reset spring 152 is disposed between the strut stopper 151 and the terminal cover 12, and the conductive strut 15 is slidably connected with the middle groove 113. The spool return spring 152 is used to return the conductive spool 15.

In this embodiment, the connection end cap 12 includes a left end cap 121 and a right end cap 122, the left end cap 121 and the right end cap 122 are detachably connected to the main housing 11 through screws, the terminal 16 is located between the left end cap 121 and the right end cap 122, a boosting spring 123 is disposed between the terminal 16 and the left end cap 121, and a through hole through which the conductive sliding column 15 can pass is disposed on the right end cap 122. The pressurizing spring 123 serves to increase the tightness of the contact between the terminal post 16 and the conductive slider 15.

In this embodiment, the limiting structure 13 includes a sliding cover 131 and a sliding cover return spring 132, the sliding cover 131 is slidably connected to the outer side of the main housing 11, the sliding cover return spring 132 is disposed between the sliding cover 131 and the main housing 11, and the right inner wall of the sliding cover 131 is a conical surface. The conical surface may cause the ball to slide over it, thereby depressing the ball.

In this embodiment, the locking structure 14 includes a locking post 141, a ball is disposed at an outer end of the locking post 141, the ball is located at an outer side of the main housing 11, the locking post 141 is slidably connected to the locking groove 111, a protruding structure is disposed on the locking post 141, and a locking post return spring 142 is sleeved on the locking post 141 between the protruding structure and the locking groove 111.

In this embodiment, the main casing body 11 is composed of two sub-casing bodies with the same structure, the two sub-casing bodies are detachably connected together through the connecting hole 11a, the main casing body 11 is designed into two detachable sub-casing bodies, the manufacturing of the main casing body 11 and the assembly of the internal structure are facilitated, the main casing body 11, the wiring end cover 12 and the butt joint body 22 are made of insulating materials, the electric power of the wiring terminal 16 is prevented from being transmitted to peripheral components, and the safety is improved.

The working process and the principle thereof are as follows:

when the connector is used, firstly, the electric wire is connected with the wiring terminal 16 and the wiring ring on the fixing guide post 21, the connection part is insulated by using the heat shrinkable tube, and then the male plug 2 is inserted into the main shell 11.

The abutting body 22 is located in the abutting groove 114 during the insertion process, and the right end of the main housing 11 is inserted into the gap between the electromagnet 23 and the abutting body 22. The fixed guide post 21 contacts with the conductive sliding post 15 first, the conductive sliding post 15 moves leftwards in the process that the fixed guide post 21 continuously extends, the guide post return spring is compressed until the left end of the butt joint body 22 contacts with the left wall of the butt joint groove 114, the conductive sliding post 15 contacts with the binding post 16, the binding post 16 is pushed to move rightwards for a distance, and the binding post 16 is connected with the conductive sliding post 15 more tightly under the action of the pressurizing spring 123.

The recess on the abutting body 22 is located between the two clamping posts 141, and since the electromagnet 23 is in the power-on working state, the electromagnet 23 has an adsorption force on the sliding cover 131, where the sliding cover 131 may be made of iron as a whole, or may be made of iron at a part on the right side, as long as the condition that the electromagnet 23 can adsorb is satisfied. Because the inner wall at the right end of the sliding cover 131 is a conical surface, when the sliding cover 131 moves rightwards, downward pressure can be applied to the ball at the top end of the clamping column 141, so that the clamping column 141 slides downwards to be clamped into the groove, the function of automatically clamping the butt-joint body 22 is realized, and other connecting pieces are not needed to be manually connected and fixed.

When a fire breaks out, the conductive liquid 241 in the thermal expansion pipe 24 expands due to heating, the thermal expansion pipe 24 bursts, the electromagnetic power supply circuit is disconnected, the electromagnet 23 is powered off, the sliding cover 131 is not acted by the attraction force of the electromagnet 23 but moves leftwards under the action of the sliding cover return spring 132 to reset, the protruding structure of the clamping column 141 slides upwards under the action of the clamping column return spring 142, the butt joint body 22 is not acted by the clamping column 141, the conductive sliding column 15 is bounced off by the sliding column return spring 152, the fixed guide column 21 is also bounced off under the action of the conductive sliding column 15, and therefore the two ends of the connector are automatically disconnected, and the power supply is cut off.

The power supply loop of the electromagnet 23 is additionally provided with a switch independently, so that the male plug 1 and the female plug 2 of the connector can be detached manually during maintenance conveniently.

The main shell 11 is designed into two detachable sub-shells, so that the manufacture of the main shell 11 and the assembly of an internal structure are facilitated, the wiring end cover 12 is screwed on the left side of the internal shell by the left end cover 121 and the right end cover 122, on one hand, the installation of the wiring terminal 16 is facilitated, and on the other hand, the connection state of the main shell 11 can be reinforced.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The cable connector is characterized by comprising a female plug (1) and a male plug (2), wherein the female plug (1) comprises a main shell (11), a wiring end cover (12), a limiting structure (13) and a clamping structure (14), the wiring end cover (12) is fixedly connected to the left end of the main shell (11), two clamping grooves (111) are formed in the main shell (11), the clamping structure (14) is arranged in the clamping grooves (111), the clamping structure (14) is used for clamping the male plug (2), the limiting structure (13) can change the clamping state of the clamping structure (14) when a fire disaster happens, a conductive sliding column (15) is connected in the main shell (11) in a sliding mode, a wiring terminal (16) is arranged on the left side of the conductive sliding column (15), the wiring terminal (16) is located in the wiring end cover (12), and a wiring ring is arranged at the left end of the wiring end cover, the conductive sliding column (15) can penetrate through the wiring end cover (12) and slide to a position contacting with the wiring terminal (16) in the process that the male plug (2) is inserted into the shell.

2. The cable connector according to claim 1, wherein the male plug (2) includes a fixed guide post (21), a mating body (22), and an electromagnet (23), the fixed guide post (21) is fixedly connected in the mating body (22), and both ends of the fixed guide post extend out of the mating body (22), a wire connecting ring is disposed at the right end of the fixed guide post (21), an annular groove (221) for clamping the clamping structure (14) is disposed on the mating body (22), the electromagnet (23) is fixedly connected to the outer side of the mating body (22), a heat expanding tube (24) is disposed on the electromagnetic power supply circuit, a conductive liquid (241) is filled in the heat expanding tube (24), and both ends of the heat expanding tube (24) are provided with a conductive post (242) connected to a power supply line of the electromagnet (23).

3. A cable connector according to claim 1, wherein the main housing (11) has a reset groove (112), a middle groove (113) and a butt groove (114) therein, the middle groove (113) is communicated with the reset groove (112) and the butt groove (114), and the clamping groove (111) is communicated with the butt groove (114) and the outer side of the main housing (11).

4. The cable connector according to claim 1, wherein a conductive sliding post (15) is provided with a sliding post stopper (151) in the middle, the sliding post stopper (151) is slidably connected in the reset groove (112), a sliding post reset spring (152) is provided between the sliding post stopper (151) and the terminal cover (12), and the conductive sliding post (15) is slidably connected with the middle groove (113).

5. The cable connector according to claim 1, wherein the terminal cover (12) comprises a left end cover (121) and a right end cover (122), the left end cover (121) and the right end cover (122) are detachably connected to the main housing (11) by screws, the terminal (16) is located between the left end cover (121) and the right end cover (122), and a pressurizing spring (123) is disposed between the terminal (16) and the left end cover (121).

6. The cable connector according to claim 1, wherein the position limiting structure (13) includes a sliding cover (131) and a sliding cover return spring (132), the sliding cover (131) is slidably connected to the outer side of the main housing (11), the sliding cover return spring (132) is disposed between the sliding cover (131) and the main housing (11), and a right inner wall of the sliding cover (131) is a conical surface.

7. A cable connector according to claim 1, wherein the locking structure (14) comprises a locking post (141), the outer end of the locking post (141) is provided with a ball, the ball is located outside the main housing (11), the locking post (141) is slidably connected with the locking groove (111), the locking post (141) is provided with a protruding structure, and the locking post (141) between the protruding structure and the locking groove (111) is sleeved with a locking post return spring (142).

8. A cable connector according to claim 1, wherein said main housing (11) is formed by two sub-housings with the same structure, said two sub-housings are detachably connected together through a connection hole (11a), and said main housing (11), said terminal cover (12), and said counter-connection body (22) are made of insulating material.