CN111668074B

CN111668074B - Electric connector

Info

Publication number: CN111668074B
Application number: CN202010502053.9A
Authority: CN
Inventors: 曾思宏; 郑甦; 李哲高; 陈万凯; 林淮; 陈凯鹤; 江嘉欣; 陈沛松
Original assignee: Guangdong Power Grid Co Ltd; Shantou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Shantou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2023-02-03
Anticipated expiration: 2040-06-04
Also published as: CN111668074A

Abstract

The invention discloses an electric connector, relates to the field of power equipment, and is designed for improving the safety and convenience of fault maintenance of a low-voltage power distribution system. The electric connector comprises an air switch and an insulating base, wherein the air switch is provided with a first electric connector; the air switch is detachably arranged on the insulating base so as to enable the first electric connector to be electrically connected with or disconnected from the second electric connector. The electric connector enables the first electric connecting piece to be electrically connected with the second electric connecting piece through the installation of the air switch, helps an operator to safely and efficiently complete the maintenance work of the air switch, improves the efficiency of replacing the air switch, and reduces the occurrence of accidents.

Description

Electric connector

Technical Field

The invention relates to the field of power equipment, in particular to an electric connector.

Background

In low voltage distribution systems, the power supply office is separated from the user's property by a conventional porcelain fuse or low voltage air switch.

In daily work, a power supply bureau and a user property right boundary point can have faults, such as a fuse wire is blown by overcurrent of a fuse bridge, even a connecting wire behind a meter is blown, and an air switch is damaged by frequent closing and tripping. In the process of replacing the safety bridge or the air switch, great potential safety hazards exist. Especially, in a circuit adopting an air switch as a demarcation point, if the air switch is falsely separated during opening, an electric shock accident can be caused to an operator who performs surface-rear line construction because the circuit does not have an obvious disconnection point.

Disclosure of Invention

The invention aims to provide an electric connector which can quickly replace an air switch, has high safety and reduces the danger of operation.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electrical connector, comprising: the air switch is provided with a first electric connector; the air switch is detachably mounted on the insulating base, so that the first electric connecting piece is electrically connected with or disconnected from the second electric connecting piece.

The middle part of the insulating base is provided with a mounting groove, the air switch is mounted in the mounting groove, a plurality of connecting grooves and terminal grooves corresponding to the connecting grooves are formed in the two sides of the mounting groove, the second electric connecting piece comprises a second wiring terminal and a second connecting piece connected with the second wiring terminal, the second wiring terminal is mounted in the terminal grooves, and the second connecting piece is fixed in the connecting grooves; with adjacent two with one side all be provided with the safety barrier between spread groove and two terminal grooves, its purpose is for preventing adjacent second connecting piece and second binding post are because of the short circuit of mutual contact.

Furthermore, a guide piece is arranged at an opening of the connecting groove and used for guiding the first electric connecting piece to enter the connecting groove, and the first electric connecting piece is electrically connected with the second connecting piece.

Preferably, the first electric connector comprises a first connecting piece, the first connecting piece is an L-shaped piece, the second connecting piece is provided with a U-shaped groove, and a vertical plate of the first connecting piece is inserted into the U-shaped groove.

Preferably, first electric connector includes first connecting piece, first connecting piece is L type spare, the lateral wall of spread groove with be formed with the inserting groove between the second connecting piece, the riser of first connecting piece peg graft in the inserting groove and with the laminating of second connecting piece.

Furthermore, the second wiring terminal comprises a wiring frame for inserting electric wires, a wiring screw is screwed on the top of the wiring frame, a conduction plate is arranged on the second connecting piece and inserted into the wiring frame, and the wiring screw enables the conduction plate to abut against the electric wires.

Furthermore, the top cover is detachably mounted on the two sides of the mounting groove on the insulating base, a first positioning protrusion used for covering the transverse plate of the first connecting piece and a second positioning protrusion used for covering the wiring screw are arranged on one side of the top cover, and a handle is arranged on the other side of the top cover. The top cover prevents accidents caused by electric leakage of the first connecting piece, the second connecting piece and the wiring screw.

The insulating base comprises at least one central base and two side bases arranged on two sides of the central base, reinforcing bones are arranged on the side faces of the side bases to improve tensile resistance after switch installation, and side grooves are formed in positions, corresponding to the terminal grooves, of the reinforcing bones to improve deformation resistance after the switch installation.

The overvoltage protection device further comprises an overvoltage protection element, and the overvoltage protection element is electrically connected with the second connecting piece.

The insulation base comprises an insulation base body, and is characterized by further comprising an indicator light, wherein the indicator light is arranged on the upper surface of the insulation base body, the indicator light is electrically connected with the two second connecting pieces located on the same side, and the two second connecting pieces and the indicator light form a conducting circuit.

The invention has the beneficial effects that:

according to the electric connector provided by the invention, the air switch is detachably arranged on the insulating base, when the air switch breaks down, the air switch is pulled out for replacement after being opened, so that the maintenance efficiency is improved, the electric wire connected with the air switch does not need to be disassembled and assembled, the safety and reliability are high, and the operation danger is reduced.

Drawings

Fig. 1 is an exploded view of an electrical connector provided in accordance with an embodiment of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken at plane A-A of FIG. 1;

fig. 3 is a schematic structural diagram of an interior of an electrical connector according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a top cover according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an interior of an electrical connector according to a second embodiment of the present invention.

In the figure:

1. an air switch;

2. a first electrical connection; 21. a first connecting member;

3. an insulating base; 31. mounting grooves; 32. connecting grooves; 33. a terminal groove; 34. a safety barrier; 35. a guide member; 36. a central base;

37. a side base; 371. strengthening bones; 372. a side groove;

4. a second electrical connection;

41. a second connection terminal; 411. a wiring frame; 412. a wiring screw;

42. a second connecting member; 421. a U-shaped groove; 422. a conduction plate; 423. inserting grooves;

5. a top cover; 51. a first positioning projection; 52. a second positioning projection; 53. a handle;

6. an overvoltage protection element;

7. and an indicator light.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

The embodiment discloses an electrical connector, as shown in fig. 1-2, the electrical connector comprises an air switch 1 and an insulating base 3, a first electrical connector 2 is arranged on the air switch 1, a second electrical connector 4 is arranged on the insulating base 3, and the air switch 1 is detachably mounted on the insulating base 3, so that the first electrical connector 2 is electrically connected with or disconnected from the second electrical connector 4. With air switch 1 demountable installation on insulator foot 3 in the electric connector that this embodiment provided, when air switch 1 broke down, behind the air switch 1 separating brake, extract air switch 1 and change, improved maintenance efficiency, and need not the electric wire that dismouting and air switch 1 are connected, fail safe nature is high, has reduced the danger of operation.

In the present embodiment, the insulating base 3 includes at least one central base 36 and two side bases 37 disposed at both sides of the central base 36. If a central base 36 is provided, two side bases 37 are attached to both sides of the central base 36. When a plurality of center bases 36 are provided, the center bases 36 are connected side by side, and then the two side bases 37 are connected to the two outermost center bases 36, respectively. Set to detachable, can splice the insulator foot 3 of different models in order to install different air switch 1 according to the demand, this design makes the installation simple and easy, and is favorable to forming the standard component for insulator foot 3's manufacturing cost reduces.

Taking the insulating base 3 including a central base 36 as an example, after the two side bases 37 are connected with the central base 36, a mounting groove 31 is formed in the middle of the insulating base 3, the mounting groove 31 is used for mounting the air switch 1, two connecting grooves 32 and terminal grooves 33 corresponding to the connecting grooves 32 are formed on both sides of the mounting groove 31, and the connecting grooves 32 are disposed near the mounting groove 31. The second electrical connector 4 comprises a second connection terminal 41 and a second connection member 42 connected with the second connection terminal 41, the second connection member 42 is fixed in the connection groove 32, the second connection terminal 41 is installed in the terminal groove 33, and the installation groove 31, the connection groove 32 and the terminal groove 33 are arranged on the insulating base 3 to fix the positions of the components, so that the internal structure is more compact and the related components are normally connected. The bottom of the mounting groove 31 is provided with a mounting hole, which is convenient for mounting the electric connector. A safety partition 34 is arranged between the two connecting grooves 32 and the two terminal grooves 33 adjacent to each other on the same side, so that a short circuit between the two second electric connectors 4 adjacent to each other on the same side cannot occur.

If the insulating base 3 includes a plurality of central bases 36, adjacent two of the central bases 36 are connected to form the connecting groove 32 and the terminal groove 33 corresponding to the connecting groove 32 so as to mount the second electrical connector 4.

The side base 37 is provided with a reinforcing bone 371 on the side, the reinforcing bone 371 is connected with the side base 37 through bolts, and the tensile resistance of the electric connector is improved due to the existence of the reinforcing bone 371. The middle part of the reinforcing bone 371 is higher than the side wall of the mounting groove 31, so that the mounting stability of the air switch 1 is improved. The reinforcing rib 371 is provided with a side groove 372 corresponding to the position of the terminal groove 33, the number of the side grooves 372 is not limited, and the deformation resistance of the device is improved due to the existence of the side groove 372.

In this embodiment, a guide 35 is provided at the opening of the connecting groove 32, the guide 35 is used for guiding the first electrical connector 2 into the connecting groove 32, and the first electrical connector 2 is connected with the second electrical connector 42. The provision of the guide 35 facilitates the first electrical connector 2 to be quickly inserted into the connecting groove 32 and connected to the second electrical connector 42, improving the mounting efficiency and mounting accuracy. Preferably, the guide 35 includes a guide block having a right triangle cross section, and an inclined surface of the guide block is disposed toward one side of the first electrical connector 2, and when the air switch 1 is installed, the inclined surface of the guide block gradually approaches a movement locus of the first electrical connector 2 to a specific installation position, so that the first electrical connector 2 is guided into the connection groove 32 by a pressure influence of the inclined surface of the guide 35 and then inserted into the U-shaped groove 421, and the connection of the first electrical connector 2 and the second electrical connector 42 is more convenient and accurate.

As shown in fig. 3, the first electrical connector 2 includes a first connector 21, the first connector 21 is an L-shaped component, the second connector 42 includes a U-shaped groove 421, and a vertical plate of the first connector 21 is inserted into the U-shaped groove 421. In this embodiment, the connection area between the first connection member 21 and the second connection member 42 is larger than 19mm × 15mm, and the current exceeding 60A can be conducted. The contact pressure between the first connecting piece 21 and the second connecting piece 42 is composed of the yield strength of the U-shaped groove 421 and the pressure of the air switch 1 on the U-shaped groove 421, so that the stable connection between the first connecting piece 21 and the second connecting piece 42 is ensured, and the installation and the connection of the air switch 1 and the insulating base 3 are further realized.

The second connection terminal 41 includes a connection frame 411 for inserting an electric wire, a connection screw 412 is screwed on the top of the connection frame 411, a conduction plate 422 is arranged on the second connection member 42, one end of the specific conduction plate 422 is connected with the upper end of the side wall of the U-shaped groove 421, the other end of the conduction plate 422 is inserted into the connection frame 411, and the connection screw 412 enables the conduction plate 422 to abut against the electric wire, so that the connection between the second connection terminal 41 and the second connection member 42 is realized. When the air switch 1 is installed on the insulating base 3, the first connecting piece 21 is connected with the second connecting piece 42, the electric wire is inserted into the wiring frame 411, and the wiring screw 412 is screwed to enable the conduction board 422 to abut against the electric wire, so that the conduction between the electric wire and the first connecting piece 21 is realized, the structure is simple, and the realization is easy.

In order to improve the safety of the electric connector, the top cover 5 is detachably mounted on both sides of the mounting groove 31 of the insulating base 3, as shown in fig. 4, a first positioning protrusion 51 for covering the transverse plate of the first connecting member 21 and a second positioning protrusion 52 for covering the wiring screw 412 are disposed on one side of the top cover 5, and a handle 53 is disposed on the other side of the top cover 5, so that the danger caused by electric leakage at the positions of the first connecting member 21 and the wiring screw 412 is avoided.

In this embodiment, the electrical connector further includes an overvoltage protection element 6, the overvoltage protection element 6 is electrically connected to the second connection member 42, when the electrical connector is in overvoltage, the protection action of the overvoltage protection element 6 is triggered, and the protection action is fed back to the air switch 1, so that the air switch 1 is turned off, and the overvoltage protection element 6 provides overvoltage protection for the electrical connector, thereby further improving the safety of the electrical connector in use.

The electric connector also comprises an indicator light 7 (see fig. 1), the indicator light 7 is arranged on the upper surface of the insulating base 3, and the indicator light 7 is electrically connected with the two second connecting pieces 42 positioned on the same side to form a conducting circuit. When the electric connector works normally, the indicator light 7 is normally on; when the air switch 1 breaks down, the indicator light 7 is turned off, the indicator light 7 helps an operator, and the operation efficiency and safety are improved. In addition, when the air switch is in a false state, the indicator light 7 is also turned on, so that electric shock of an operator is avoided, and personal safety of the operator is ensured.

Example two

As shown in fig. 5, the structure of the electrical connector provided in the present embodiment is different from that of the first embodiment in that the first electrical connector 2 includes a first connecting piece 21, the first connecting piece 21 is an L-shaped piece, an insertion groove 423 is formed between a side wall of the connecting groove 32 and the second connecting piece 42, and a riser of the first connecting piece 21 is inserted into the insertion groove 423 and attached to the second connecting piece 42. Specifically, one end of the second connecting member 42 is connected to the bottom of the connecting groove 32, the other end of the second connecting member 42 is provided with a conducting plate 422, the conducting plate 422 is inserted into the wire frame 411, and other structures of the electrical connector are the same as those of the first embodiment. The guide 35 enables the first electrical connector 2 to be guided into the insertion groove 423 under the influence of the pressure of the inclined surface of the guide 35 and to be attached to the second connector 42, so as to electrically connect the first electrical connector 2 and the second connector 42. Connecting groove 32 and mounting groove 31 are adjacent to each other, and connecting groove 32 and mounting groove 31 share a lateral wall, and air switch 1 can produce certain extrusion force to the lateral wall of mounting groove 31 after being installed in mounting groove 31, even the lateral wall of mounting groove 31 produces the deformation towards second connecting piece 42 one side, has ensured first connecting piece 21 and second connecting piece 42's stable connection, and then has realized air switch 1 and insulating base 3's installation and connection. In this embodiment, the connection area between the first connection member 21 and the second connection member 42 is larger than 19mm × 15mm, and the current exceeding 60A can be conducted.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.

Claims

1. An electrical connector, comprising:

the air switch (1), wherein a first electric connector (2) is arranged on the air switch (1);

the air switch is characterized by comprising an insulating base (3), wherein a second electric connecting piece (4) is arranged on the insulating base (3), and the air switch (1) is detachably arranged on the insulating base (3) so that the first electric connecting piece (2) is electrically connected with or disconnected from the second electric connecting piece (4);

the middle of the insulating base (3) is provided with a mounting groove (31), the air switch (1) is mounted in the mounting groove (31), two sides of the mounting groove (31) are respectively provided with a plurality of connecting grooves (32) and terminal grooves (33) corresponding to the connecting grooves (32), the second electric connector (4) comprises a second wiring terminal (41) and a second connecting piece (42) connected with the second wiring terminal (41), the second wiring terminal (41) is mounted in the terminal grooves (33), and the second connecting piece (42) is fixed in the connecting grooves (32); a safety partition plate (34) is arranged between two adjacent connecting grooves (32) and two terminal grooves (33) on the same side; the first electric connector (2) comprises a first connecting piece (21), the first connecting piece (21) is an L-shaped piece, a U-shaped groove (421) is formed in the second connecting piece (42), and a vertical plate of the first connecting piece (21) is inserted into the U-shaped groove (421).

2. An electrical connector according to claim 1, characterized in that a guide (35) is provided at the opening of the connection slot (32), the guide (35) being adapted to guide the first electrical connector (2) into the connection slot (32), and the first electrical connector (2) being electrically connected to the second electrical connector (42).

3. The electrical connector of claim 1, wherein the second terminal (41) includes a terminal frame (411) for inserting an electrical wire, a terminal screw (412) is screwed to a top of the terminal frame (411), a conduction plate (422) is disposed on the second connecting member (42), the conduction plate (422) is inserted into the terminal frame (411), and the terminal screw (412) can make the conduction plate (422) abut against the electrical wire.

4. The electrical connector according to claim 3, wherein a top cover (5) is detachably mounted on both sides of the mounting groove (31) on the insulating base (3), a first positioning protrusion (51) for covering the first connecting member (21) and a second positioning protrusion (52) for covering the binding screw (412) are provided on one side of the top cover (5), and a handle (53) is provided on the other side of the top cover (5).

5. The electrical connector of claim 1, wherein the insulating base (3) comprises at least one central base (36) and two side bases (37) arranged at two sides of the central base (36), the side bases (37) are laterally provided with reinforcing bones (371), and lateral grooves (372) are arranged on the reinforcing bones (371) at positions corresponding to the terminal grooves (33).

6. Electrical connector according to claim 1, characterized in that it further comprises an overvoltage protection element (6), said overvoltage protection element (6) being electrically connected to said second connection member (42).

7. The electrical connector according to claim 1, further comprising an indicator light (7), wherein the indicator light (7) is disposed on the upper surface of the insulating base (3), the indicator light (7) is electrically connected to the two second connecting members (42) on the same side, and the two second connecting members (42) and the indicator light (7) form a conducting circuit.