CN218826905U

CN218826905U - High-reliability breaker type low-voltage switch cabinet

Info

Publication number: CN218826905U
Application number: CN202223465331.1U
Authority: CN
Inventors: 李仕成; 魏红旗
Original assignee: Chongqing Xinyaocheng Electric Appliance Co ltd
Current assignee: Chongqing Xinyaocheng Electric Appliance Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-07
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a high reliability circuit breaker formula low-voltage switchgear, include: the device comprises a cabinet body, a circuit breaker, a mains supply connecting wire and a connecting screw; the middle part of the cabinet body is provided with a circuit breaker, the cabinet body is provided with an external connection hole, the external connection hole is positioned beside the circuit breaker, and the external connection hole is used for a mains supply connection wire to pass through; the utility power connecting wire includes: the flexible conducting wire is electrically connected with the conducting plate, the conducting plate is made of a rigid conducting material, the wire outer cladding wraps the flexible conducting wire and the conducting plate, and only one end of the conducting plate is exposed out of the wire outer cladding; three mounting grooves have been seted up to the circuit breaker shell, and the mounting groove supplies the conducting strip to insert, installs the electrically conductive spring that is used for being connected circuit breaker and conducting strip electricity in the mounting groove. This high reliability circuit breaker formula low-voltage switchgear solves among the prior art the problem that the commercial power connecting wire is installed on the circuit breaker through the grafting mode and leads to appearing contact failure easily.

Description

High-reliability breaker type low-voltage switch cabinet

Technical Field

The utility model relates to a low-voltage switchgear, concretely relates to high reliability circuit breaker formula low-voltage switchgear.

Background

The low-voltage switchgear cabinet includes: the cabinet body, circuit breaker, mains connection line and cubical switchboard electrical component, cubical switchboard electrical component includes: the electric switch cabinet comprises a current transformer, a meter, a capacitor, an electric leakage relay and the like, wherein a circuit breaker supplies power to electric elements of the switch cabinet, the circuit breaker is connected to one end of a mains supply connecting wire, the other end of the mains supply connecting wire is connected to three mains supply three-phase voltages (namely, three mains supply A, three mains supply B and three mains supply C), the three mains supply connecting wires correspond to the three-phase voltages, and the mains supply connecting wires penetrate through the cabinet body.

The utility power connecting wire is installed on the circuit breaker through the grafting mode, also is that: the commercial power connecting wire and the circuit breaker are connected in a mode of socket and plug. When the circuit breaker is connected, the mains supply connecting wire is kept clamped through the elastic piece and the like, and the mains supply connecting wire is prevented from being separated from the circuit breaker. Then the disadvantages that are easily present are: the utility power connecting wire breaks away from with the circuit breaker easily, and the condition that contact failure appears takes place, leads to whole low-voltage switchgear to realize unable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high reliability circuit breaker formula low-voltage switchgear, the problem of contact failure appears easily in the commercial power connecting wire through the grafting mode is installed on the circuit breaker among the solution prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a high reliability circuit breaker formula low-voltage switchgear, include: the device comprises a cabinet body, a circuit breaker, a mains supply connecting wire and a connecting screw; the middle part of the cabinet body is provided with a circuit breaker, the cabinet body is provided with an external connection hole, the external connection hole is positioned beside the circuit breaker, and the external connection hole is used for a mains supply connection wire to pass through; the utility power connecting wire includes: the flexible conducting wire is electrically connected with the conducting plate, the conducting plate is made of a rigid conducting material, the wire outer cladding is wrapped outside the flexible conducting wire and the conducting plate, and only one end of the conducting plate is exposed out of the wire outer cladding; the shell of the circuit breaker is provided with three mounting grooves, the mounting grooves are used for inserting conducting strips, and a conducting spring used for electrically connecting the circuit breaker and the conducting strips is mounted in each mounting groove; the wire outer cladding and the conducting plate are both used for the connection screw to pass through, and are pressed on the shell of the circuit breaker by the connection screw.

Preferably, a closing case is covered on the breaker housing, and the closing case closes the mounting groove.

Preferably, the closure shell comprises: the sealing plate seals the mounting groove, the connecting plate is fixed on the sealing plate, and the connecting plate is clamped between the large ends of the connecting screws by the online outer cladding.

Preferably, the circuit breaker shell surface is sunken to form the insertion groove, and the insertion groove is located the mounting groove top, insertion groove and mounting groove intercommunication, and the conducting strip deviates from line overclad one end protrusion and forms the convex part, and the mounting groove can supply the conducting strip to go up and down, and the mounting groove inner wall is formed with the anticreep step, and the anticreep step breaks away from with the mounting groove through restricting the conducting strip with the convex part cooperation.

Preferably, the side surface of the cabinet body is provided with a plurality of vent holes.

Preferably, the circuit breaker is connected with an external wire, and the external wire is used for connecting external electrical equipment.

Preferably, the external electrical wire passes through the connection ring, and the connection ring is positioned on the vent hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

1) After passing conducting strip and line overcladding layer through setting up connecting screw, the connecting screw main aspects compresses tightly outer line thin layer and conducting strip on the circuit breaker shell, because the conducting strip adopts rigid material to make, the conducting strip can increase the intensity of line overcladding layer, thereby guarantee that connecting screw can not break away from the line overcladding layer, the conducting strip is compressed tightly outside conducting spring simultaneously, conducting spring electricity is connected to circuit breaker inner circuit structure, because connecting screw's stable installation, because connecting screw can not appear any not hard up possibility, avoided among the prior art through positioning conducting strip such as elastomeric element and lead to the not hard up condition of conducting strip appearance, the phenomenon of having avoided contact failure takes place, the stability of connecting has been guaranteed, the fault rate has been reduced, make the operation of whole low-voltage switchgear more reliable.

2) The connecting bolt is made of the hard conductive material provided with the conductive sheets, so that the connection stability with the connecting bolt is ensured, and the connection stability with the conductive spring is also ensured.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a high-reliability breaker-type low-voltage switchgear.

Fig. 2 is a schematic diagram of the structure at the circuit breaker.

Fig. 3 is a schematic structural view of the closure shell in fig. 2 after being disassembled.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of a utility power connection line.

Reference numerals are as follows: the electric energy meter comprises a cabinet body 1, a vent hole 10, a circuit breaker 2, a conductive spring 20, a mounting groove 21, an insertion groove 22, an anti-falling step 23, a mains supply connecting wire 3, a conductive sheet 31, a wire outer cladding 32, a convex part 33, a connecting screw 4, a sealing shell 5, a sealing plate 51, a connecting plate 52, an external electric wire 6 and a connecting ring 60.

Detailed Description

In order to make the utility model discloses technical means, creation characteristic, achievement purpose and effect that realize are clearer and easily understand, and it is right to combine below attached drawing and detailed implementation mode the utility model discloses do further to explain:

as shown in fig. 1 to 5, the utility model discloses a high reliability circuit breaker formula low-voltage switchgear, include: the intelligent cabinet comprises a cabinet body 1, a circuit breaker 2, a mains supply connecting wire 3 and a connecting screw 4; the middle part of the cabinet body 1 is provided with a circuit breaker 2, the cabinet body 1 is provided with an external connecting hole, the external connecting hole is positioned beside the circuit breaker 2, and the external connecting hole is used for a mains supply connecting wire 3 to pass through; the utility connection line 3 includes: the flexible conducting wire, the conducting plate 31 and the wire outer cladding 32, the flexible conducting wire is electrically connected with the conducting plate 31, the conducting plate 31 is made of a rigid conducting material, the wire outer cladding 32 wraps the flexible conducting wire and the conducting plate 31, and only one end of the conducting plate 31 is exposed out of the wire outer cladding 32; the shell of the breaker 2 is provided with three mounting grooves 21, the mounting grooves 21 are used for inserting the conducting strips 31, and the conducting springs 20 used for electrically connecting the breaker 2 and the conducting strips 31 are mounted in the mounting grooves 21; the wire outer covering 32 and the conductive plate 31 are penetrated by the connection screw 4, and the wire outer covering 32 and the conductive plate 31 are pressed against the case of the circuit breaker 2 by the connection screw 4.

The shell of the circuit breaker 2 is covered by a closing shell 5, and the closing shell 5 closes the installation groove 21. The mounting groove 21 is sealed by the sealing shell 5, the sealing shell 5 is made of insulating materials, and the connecting position of the conducting strip 31 is sealed by the sealing shell 5, so that foreign matters are prevented from entering the outside.

The enclosure 5 comprises: the closing plate 51 closes the mounting groove 21, the connecting plate 52 is fixed on the closing plate 51, and the connecting plate 52 is clamped between the wire outer cladding 32 and the large end of the connecting screw 4. After the large end of the connecting screw 4 is pressed against the connecting plate 52, the whole sealing shell 5 can be installed.

The surface of the shell of the circuit breaker 2 is sunken to form an insertion groove 22, the insertion groove 22 is positioned above the installation groove 21, the insertion groove 22 is communicated with the installation groove 21, one end of the conducting strip 31, which deviates from the wire outer cladding 32, protrudes to form a convex part 33, the installation groove 21 can be used for lifting the conducting strip 31, the inner wall of the installation groove 21 is provided with an anti-falling step 23, and the anti-falling step 23 is matched with the convex part 33 to limit the conducting strip 31 to be separated from the installation groove 21. When the conductive plate 31 is inserted into the mounting groove 21, if the conductive plate 31 is inserted into the middle of the conductive spring 20, the conductive spring 20 may be damaged. Therefore, in order to avoid the situation, the conducting plate 31 can be positioned above the conducting spring 20, and the inserting groove 22, the convex part 33 and the anti-falling step 23 are arranged, so that when the conducting plate 31 is installed, firstly, the conducting plate 31 and the convex part 33 are firstly inserted into the inserting groove 22, the conducting spring 20 is positioned below the inserting groove 22, and after the inserting groove 22 is inserted into the conducting plate 31, the conducting plate 31 can be smoothly positioned above the conducting spring 20; then, the conducting plate 31 is pressed downwards, and the conducting plate 31 can smoothly press and deform the conducting spring 20; then, the closing shell 5 is closed to the installation groove 21 and the insertion groove 22; finally, the connecting screw 4 passes through the closed shell 5, the wire outer cladding 32 and the conducting strip 31, so that the conducting strip 31 can be positioned at a position tightly attached to the conducting spring 20, and good electric contact is ensured. It is achieved that the conductive plate 31 can be pressed down into the mounting groove 21 after being inserted into the insertion groove 22 first.

The side of the cabinet body 1 is provided with a plurality of vent holes 10. The arrangement of the vent holes 10 facilitates ventilation and heat dissipation of the electric components in the cabinet body 1, and avoids damage to the electric components in the cabinet body 1 due to overhigh temperature of the electric components in the cabinet body 1.

The circuit breaker 2 is connected with an external wire 6, and the external wire 6 is used for connecting external electrical equipment. So that the circuit breaker 2 can be connected to other external electrical equipment from the outside.

The external electric wire 6 passes through the connection ring 60, and the connection ring 60 is positioned on the ventilation hole 10. The external electric wire 6 can be stably positioned on the inner wall of the cabinet body 1 through the connecting ring 60, and the vent hole 10 is used for the connecting ring 60 to pass through, so that the position of the connecting ring 60 is conveniently positioned.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. High reliability circuit breaker formula low-voltage switchgear, its characterized in that includes: the intelligent cabinet comprises a cabinet body (1), a circuit breaker (2), a mains supply connecting wire (3) and a connecting screw (4);

the middle part of the cabinet body (1) is provided with a circuit breaker (2), the cabinet body (1) is provided with an external connection hole, the external connection hole is positioned beside the circuit breaker (2), and the external connection hole is used for a mains supply connection wire (3) to pass through;

the utility power connection line (3) comprises: the flexible conducting wire, the conducting plate (31) and the wire outer cladding (32), the flexible conducting wire is electrically connected with the conducting plate (31), the conducting plate (31) is made of a hard conducting material, the wire outer cladding (32) wraps the flexible conducting wire and the conducting plate (31), and only one end of the conducting plate (31) is exposed out of the wire outer cladding (32);

the shell of the circuit breaker (2) is provided with three mounting grooves (21), the mounting grooves (21) are used for inserting the conducting strips (31), and the mounting grooves (21) are internally provided with conducting springs (20) used for electrically connecting the circuit breaker (2) and the conducting strips (31);

the wire outer cladding (32) and the conducting strips (31) are both used for the connection screw (4) to penetrate through, and the wire outer cladding (32) and the conducting strips (31) are pressed on the shell of the circuit breaker (2) by the connection screw (4).

2. High reliability circuit breaker type low voltage switchgear cabinet according to claim 1, characterized in that the circuit breaker (2) housing is covered by a closing shell (5), the closing shell (5) closing the mounting slot (21).

3. High reliability circuit-breaker-type low-voltage switchgear cabinet according to claim 2, characterized in that said containment casing (5) comprises: the sealing plate (51) seals the mounting groove (21), the sealing plate (51) is fixed with the connecting plate (52), and the connecting plate (52) is clamped between the large ends of the connecting screws (4) and the online outer cladding (32).

4. The high-reliability breaker-type low-voltage switch cabinet as claimed in claim 3, wherein the surface of the casing of the circuit breaker (2) is recessed to form an insertion groove (22), the insertion groove (22) is located above the installation groove (21), the insertion groove (22) is communicated with the installation groove (21), one end of the conducting strip (31) away from the wire outer cladding (32) is protruded to form a convex part (33), the installation groove (21) can be used for lifting the conducting strip (31), the inner wall of the installation groove (21) is provided with an anti-dropping step (23), and the anti-dropping step (23) is matched with the convex part (33) to limit the conducting strip (31) to be separated from the installation groove (21).

5. The high-reliability breaker-type low-voltage switch cabinet as claimed in any one of claims 1 to 4, wherein the side of the cabinet body (1) is provided with a plurality of vent holes (10).

6. High reliability circuit breaker type low voltage switchgear according to claim 5 characterized in that the circuit breaker (2) is connected with an external wire (6), the external wire (6) being used for connecting external electrical equipment.

7. High reliability circuit breaker type low voltage switchgear according to claim 6 characterized in that the external electrical wires (6) pass through the connection ring (60), the connection ring (60) being positioned on the vent hole (10).