阅读说明：本技术 塑壳断路器转接线装置 (Switching wire device of plastic case circuit breaker ) 是由 李松 车磊 李博 李永胜 范少帅 李文文 刘峰 张佳林 于 2020-11-09 设计创作，主要内容包括：本发明提供了一种塑壳断路器转接线装置,属于电力转接术领域,包括转接接线排组件,所述转接接线排组件的第一端用于与塑壳断路器的上接线口连接,所述转接接线排组件的第二端用于延伸至所述塑壳断路器的下接线口的外侧,且用于与进线电缆连接。本发明塑壳断路器转接线装置在安装电缆的时候,需要与塑壳断路器上接线口连接的电缆可以直接连接在转接接线排组件的第二端,减少了电缆的打弯,节省了电缆的使用量,降低了安装难度,并且节省了空间的使用,占用空间小；该装置结构简单,实现了对塑壳断路器接线方式的转变,成本较低,使用广泛。(The invention provides a switching line device of a molded case circuit breaker, belonging to the field of power switching technology, comprising a switching wiring bar assembly, wherein the first end of the switching wiring bar assembly is used for being connected with an upper wiring port of the molded case circuit breaker, and the second end of the switching wiring bar assembly is used for extending to the outer side of a lower wiring port of the molded case circuit breaker and is used for being connected with an incoming cable. When the switching line device of the molded case circuit breaker is used for installing the cable, the cable which needs to be connected with the wiring port on the molded case circuit breaker can be directly connected to the second end of the switching wiring bar assembly, so that the bending of the cable is reduced, the using amount of the cable is saved, the installation difficulty is reduced, the use of space is saved, and the occupied space is small; the device has simple structure, realizes the change of the wiring mode of the molded case circuit breaker, and has lower cost and wide application.)

1. Moulded case circuit breaker switching cord device, its characterized in that includes:

the first end of switching row of connecting subassembly is used for being connected with moulded case circuit breaker's last wiring mouth, the second end of switching row of connecting subassembly is used for extending to moulded case circuit breaker's the outside of lower wiring mouth, and is used for being connected with inlet wire cable.

2. The switching line device of a molded case circuit breaker according to claim 1, wherein the switching line bank assembly includes an a-phase connection bank, a B-phase connection bank, and a C-phase connection bank, and further includes an insulating housing sleeved outside the a-phase connection bank, the B-phase connection bank, and the C-phase connection bank, wherein a first end of the a-phase connection bank, a first end of the B-phase connection bank, and a first end of the C-phase connection bank are respectively connected to different upper connection ports of the molded case circuit breaker, and a second end of the a-phase connection bank, a second end of the B-phase connection bank, and a second end of the C-phase connection bank respectively extend to an outer side of a lower connection port of the molded case circuit breaker.

3. The molded case circuit breaker transfer line assembly of claim 2, wherein the phase-a row comprises a first conductor and a second conductor disposed perpendicular to the first conductor and extending downward, a free end of the first conductor being a first end of the phase-a row, a free end of the second conductor being a second end of the phase-a row;

the B-phase connecting row comprises a third conductor and a fourth conductor which is perpendicular to the third conductor and extends downwards, the free end of the third conductor is the first end of the B-phase connecting row, and the free end of the fourth conductor is the second end of the B-phase connecting row;

the C-phase connecting row comprises a fifth conductor and a sixth conductor which is perpendicular to the fifth conductor and extends downwards, the free end of the fifth conductor is the first end of the C-phase connecting row, and the free end of the sixth conductor is the second end of the C-phase connecting row;

the A-phase connecting row, the B-phase connecting row and the C-phase connecting row are sequentially distributed at intervals on the front path and the rear path.

4. A switching line apparatus of a molded case circuit breaker according to claim 2, wherein a first connection port is provided at a second end of the a-phase connection bank, a second connection port is provided at a second end of the B-phase connection bank, a third connection port is provided at a second end of the C-phase connection bank, and the first connection port, the second connection port and the third connection port are sequentially distributed along an up-down path.

5. The molded case circuit breaker transfer line assembly of claim 4, wherein a length of the second conductor, a length of the fourth conductor, and a length of the sixth conductor increase in sequence.

6. The molded case circuit breaker transfer line assembly of claim 5, wherein the free ends of the second and fourth conductors are bent forward, respectively, such that the first, second and third ports are spaced apart at a prescribed interval in a front-to-rear direction.

7. The switching line device of the plastic case circuit breaker according to claim 3, wherein the a-phase row has two a-phase rows stacked on each other, the first conductors in the two a-phase rows have their plate surfaces in contact with each other, the second conductors in the two a-phase rows have their plate surfaces in contact with each other, a first end of each of the a-phase rows is electrically connected to a same upper connection port, and a second end of each of the a-phase rows is connected to a same cable;

the two B-phase connecting rows are overlapped, the plate surfaces of the third conductors in the two B-phase connecting rows are in contact with each other in a fitting manner, the plate surfaces of the fourth conductors in the two B-phase connecting rows are in contact with each other in a fitting manner, the first end of each B-phase connecting row is electrically connected with the same upper wiring port, and the second end of each B-phase connecting row is connected with the same cable;

the C is connected and is arranged and have two that pile up each other, two the C is connected arrange the face of fifth conductor and is laminated the contact each other, two the C is connected arrange the face of sixth conductor and is laminated the contact each other, every the first end of C looks run all is connected with same last wiring mouth electricity, the second end all with same cable junction.

8. A switching line apparatus of a molded case circuit breaker according to claim 2, wherein a first groove for receiving the a-phase link row, a second groove for receiving the B-phase link row, and a third groove for receiving the C-phase link row are respectively provided in the insulating case.

9. The molded case circuit breaker transfer line apparatus of claim 8, wherein a first cover plate for covering the first slot, a second cover plate for covering the second slot, and a third cover plate for covering the third slot are further provided at an inner side of the insulating housing, respectively.

10. A molded case circuit breaker transfer line assembly as recited in claim 9, wherein said first cover plate is provided with a first protrusion, and said insulating housing is provided with a first clamping position corresponding to said first protrusion;

a second bulge is arranged on the second cover plate, and a second clamping position corresponding to the second bulge is arranged on the insulating shell;

and a third bulge is arranged on the third cover plate, and a third clamping position corresponding to the third bulge is arranged on the insulating shell.

Technical Field

The invention belongs to the technical field of power switching, and particularly relates to a switching line device of a molded case circuit breaker.

Background

The large direct current charger is produced along with the appearance of new energy vehicles, and becomes a main electric energy supply mode of the new energy vehicles. Most products of the molded case circuit breaker installed in the direct current charging pile do not support the connection mode of the lower inlet wire, the upper inlet wire is used for charging pile equipment, the usage amount of the inlet wire cable is increased and the cable is very inconvenient to bend by 180 degrees during field wiring. If the existing connecting terminal is used as a transfer device, the occupied space is particularly large, and the development trend of high power density of the charging pile is contradicted; although some special molded case circuit breakers can be fed with wires from the lower opening, the price is high, the types are few, the installation cost is increased, and the leakage protection requirement cannot be met.

Disclosure of Invention

The invention aims to provide a switching wire device of a molded case circuit breaker, and aims to solve the technical problems that the existing molded case circuit breaker is inconvenient to use, large in occupied space and high in cost due to the adoption of a lower inlet wire.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a switching line device of a molded case circuit breaker, including:

the first end of switching row of connecting subassembly is used for being connected with moulded case circuit breaker's last wiring mouth, the second end of switching row of connecting subassembly is used for extending to moulded case circuit breaker's the outside of lower wiring mouth, and is used for being connected with inlet wire cable.

As another embodiment of this application, switching row of connecting subassembly includes A looks connecting row, B is connected row and C looks connecting row, still locates including the cover A looks connecting row B is connected row and C is connected the insulating casing outside arranging, A looks connecting row's first end B is connected row the first end of C looks connecting row and C looks connecting row's first end respectively with the last wiring mouth of moulding the case circuit breaker is last to be connected, A looks connecting row's second end B is connected row the second end and C looks connecting row's second end extends respectively to moulding the outside of moulding the case circuit breaker's lower wiring mouth.

As another embodiment of the present application, the phase-a connection row includes a first conductor and a second conductor that is perpendicular to the first conductor and extends downward, a free end of the first conductor is a first end of the phase-a connection row, and a free end of the second conductor is a second end of the phase-a connection row;

the B-phase connecting row comprises a third conductor and a fourth conductor which is perpendicular to the third conductor and extends downwards, the free end of the third conductor is the first end of the B-phase connecting row, and the free end of the fourth conductor is the second end of the B-phase connecting row;

the C-phase connecting row comprises a fifth conductor and a sixth conductor which is perpendicular to the fifth conductor and extends downwards, the free end of the fifth conductor is the first end of the C-phase connecting row, and the free end of the sixth conductor is the second end of the C-phase connecting row;

the A-phase connecting row, the B-phase connecting row and the C-phase connecting row are sequentially distributed at intervals on the front path and the rear path.

As another embodiment of this application, be equipped with first wiring mouth on the second end of A looks bank of connection, be equipped with the second wiring mouth on the second end of B looks bank of connection, the second of C looks bank of connection is served and is equipped with the third wiring mouth, first wiring mouth the second wiring mouth and the third wiring mouth distributes in order on upper and lower route.

As another embodiment of the present application, a length of the second conductor, a length of the fourth conductor, and a length of the sixth conductor sequentially increase.

As another embodiment of the present application, the free end of the second conductor and the free end of the fourth conductor are respectively bent forward so that the first wire connection port, the second wire connection port, and the third wire connection port are spaced apart at a specified pitch in the forward and backward direction.

As another embodiment of the present application, the two a-phase connection rows are stacked, the plate surfaces of the first conductors in the two a-phase connection rows are in contact with each other, the plate surfaces of the second conductors in the two a-phase connection rows are in contact with each other, a first end of each a-phase connection row is electrically connected to the same upper connection port, and a second end of each a-phase connection row is connected to the same cable;

the two B-phase connecting rows are overlapped, the plate surfaces of the third conductors in the two B-phase connecting rows are in contact with each other in a fitting manner, the plate surfaces of the fourth conductors in the two A-phase connecting rows are in contact with each other in a fitting manner, the first end of each B-phase connecting row is electrically connected with the same upper wiring port, and the second end of each B-phase connecting row is connected with the same cable;

the C is connected and is arranged and have two that pile up each other and establish, two the C is connected the face of arranging the fourth conductor and is laminated the contact each other, two the A is connected the face of arranging the fifth conductor and is laminated the contact each other, every the first end of C looks run all is connected with same last wiring mouth electricity, the second end all with same cable junction.

As another embodiment of this application, be equipped with respectively in the insulating casing and be used for the holding the first cell body of A looks run-on, be used for the holding the second cell body of B looks run-on and be used for the holding the third cell body of C looks run-on.

As another embodiment of the present application, the inner side of the insulating housing is further respectively provided with a first cover plate for covering the first tank body, a second cover plate for covering the second tank body, and a third cover plate for covering the third tank body.

As another embodiment of the present application, a first protrusion is disposed on the first cover plate, and a first clamping position corresponding to the first protrusion is disposed on the insulating housing;

a second bulge is arranged on the second cover plate, and a second clamping position corresponding to the second bulge is arranged on the insulating shell;

and a third bulge is arranged on the third cover plate, and a third clamping position corresponding to the third bulge is arranged on the insulating shell.

The switching line device of the molded case circuit breaker provided by the invention has the beneficial effects that: compared with the prior art, the specific use method of the switching line device of the molded case circuit breaker comprises the following steps: the switching wiring bar assembly is installed on the molded case circuit breaker, the second end of the switching wiring bar assembly is located on the outer side of the lower wiring port of the molded case circuit breaker, when a cable is installed, the cable of the lower wiring port of the molded case circuit breaker is normally installed, and the cable which needs to be connected with the upper wiring port of the molded case circuit breaker is installed at the second end of the switching wiring bar assembly. When the switching line device of the molded case circuit breaker is used for installing the cable, the cable which needs to be connected with the wiring port on the molded case circuit breaker can be directly connected to the second end of the switching wiring bar assembly, so that the bending of the cable is reduced, the using amount of the cable is saved, the installation difficulty is reduced, the use of space is saved, and the occupied space is small; the device has simple structure, realizes the change of the wiring mode of the molded case circuit breaker, and has lower cost and wide application.

Drawings

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

Fig. 1 is a schematic diagram of a split structure of a switching line device of a molded case circuit breaker according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a switching line device of a molded case circuit breaker according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a switching line device of a molded case circuit breaker according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a use state of the switching line device of the molded case circuit breaker according to the embodiment of the present invention;

FIG. 5 is a schematic front view of the structure of FIG. 4;

fig. 6 is a schematic view of an installation structure of the phase a connection row, the phase B connection row, and the phase C connection row adopted in the embodiment of the present invention;

fig. 7 is a side view of the structure of fig. 6.

In the figure: 1. a phase connecting row; 101. a first conductor; 102. a second conductor; 103. a first wiring port; 2. b phase connecting row; 201. a third conductor; 202. a fourth conductor; 203. a second wiring port; 3. c phase connecting rows; 301. a fifth conductor; 302. a sixth conductor; 303. a third wiring port; 4. an insulating housing; 401. a first tank body; 402. a second tank body; 403. a third tank body; 404. a first clamping position; 405. a second card is clamped; 406. a third clamping position; 5. a first cover plate; 501. a first protrusion; 6. a second cover plate; 601. a second protrusion; 7. a third cover plate; 701. a third protrusion; 8. mounting a plate; 9. and (7) installing holes.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present application, the term "front" refers to a side facing the toggle button of the molded case circuit breaker, the term "rear" refers to a side facing away from the toggle button of the molded case circuit breaker, the term "inner" refers to a side close to the molded case circuit breaker, and the term "outer" refers to a side far away from the molded case circuit breaker.

Referring to fig. 1 to 7 together, a description will now be given of a molded case circuit breaker switching line apparatus according to the present invention. Moulded case circuit breaker patch cord device, including switching row of connecting subassembly, the first end of switching row of connecting subassembly is used for being connected with moulded case circuit breaker's last wiring mouth, and the second end of switching row of connecting subassembly is used for extending to the outside of moulded case circuit breaker's lower wiring mouth, and is used for being connected with the inlet wire cable.

The invention provides a concrete use method of a switching line device of a molded case circuit breaker, which comprises the following steps: the switching wiring bar assembly is installed on the molded case circuit breaker, the second end of the switching wiring bar assembly is located on the outer side of the lower wiring port of the molded case circuit breaker, when a cable is installed, the cable of the lower wiring port of the molded case circuit breaker is normally installed, and the cable which needs to be connected with the upper wiring port of the molded case circuit breaker is installed at the second end of the switching wiring bar assembly.

Compared with the prior art, when the switching line device of the molded case circuit breaker is used for installing the cable, the cable which needs to be connected with the wiring port on the molded case circuit breaker can be directly connected to the second end of the switching wiring bar assembly, so that the bending of the cable is reduced, the using amount of the cable is saved, the installation difficulty is reduced, the use of space is saved, and the occupied space is small; the device has simple structure, realizes the change of the wiring mode of the molded case circuit breaker, and has lower cost and wide application.

As a specific embodiment of the switching line device of the molded case circuit breaker provided by the present invention, please refer to fig. 1 to 5, the switching line bank assembly includes an a-phase connection bank 1, a B-phase connection bank 2, and a C-phase connection bank 3, and further includes an insulating housing 4 sleeved outside the a-phase connection bank 1, the B-phase connection bank 2, and the C-phase connection bank 3, wherein a first end of the a-phase connection bank 1, a first end of the B-phase connection bank 2, and a first end of the C-phase connection bank 3 are respectively connected to different upper line ports of the molded case circuit breaker, and a second end of the a-phase connection bank 1, a second end of the B-phase connection bank 2, and a second end of the C-phase connection bank 3 extend to the outer side of a lower line port. Because the A phase connecting bar 1, the B phase connecting bar 2 and the C phase connecting bar 3 are mainly used for realizing the electric connection of the wiring ports on the cable and the molded case circuit breaker, the cable and the molded case circuit breaker are all electrified conductors, and the insulation shell 4 is arranged (the insulation shell 4 is made of molding compound with good insulation property), the integrity of the device is improved, the installation is convenient, the safety of the device is improved, and accidents such as electric leakage and electric shock are prevented.

As a specific embodiment of the switching line device of the molded case circuit breaker provided by the present invention, please refer to fig. 1, 6 to 7, wherein the a-phase connection row 1 includes a first conductor 101 and a second conductor 102 vertically disposed to the first conductor 101 and extending downward, a free end of the first conductor 101 is a first end of the a-phase connection row 1, and a free end of the second conductor 102 is a second end of the a-phase connection row 1; the B-phase connection row 2 comprises a third conductor 201 and a fourth conductor 202 which is arranged perpendicular to the third conductor 201 and extends downwards, the free end of the third conductor 201 is the first end of the B-phase connection row 2, and the free end of the fourth conductor 202 is the second end of the B-phase connection row 2; the C-phase connection row 3 comprises a fifth conductor 301 and a sixth conductor 302 which is arranged perpendicular to the fifth conductor 301 and extends downwards, the free end of the fifth conductor 301 is the first end of the C-phase connection row 3, and the free end of the sixth conductor 302 is the second end of the C-phase connection row 3; the A phase connecting row 1, the B phase connecting row 2 and the C phase connecting row 3 are sequentially distributed at intervals on the front and back paths.

As can be seen from the above description, the first conductor 101 and the second conductor 102 form an L-shaped a-phase connection row 1, the third conductor 201 and the fourth conductor 202 form an L-shaped B-phase connection row 2, and the fifth conductor 301 and the sixth conductor 302 form an L-shaped C-phase connection row 3, and the a-phase connection row 1, the B-phase connection row 2, and the C-phase connection row 3 of this structure are arranged in order in the front-rear direction and can be attached to the side of the molded case circuit breaker, so that the patch cord device of the present invention improves the installation order, reduces the arrangement of cables during installation, and reduces the space occupation.

In this embodiment, the a-phase connecting row 1, the B-phase connecting row 2, and the C-phase connecting row 3 are sequentially spaced apart on the front-rear path. The specific arrangement sequence from front to back can be as follows: (1) the phase A connecting row 1, the phase B connecting row 2 and the phase C connecting row 3; (2) the phase A is connected with the row 1, the phase C is connected with the row 3, and the phase B is connected with the row 2; (3) the phase B connecting row 2, the phase A connecting row 1 and the phase C connecting row 3; (4) the B phase connecting row 2, the C phase connecting row 3 and the A phase connecting row 1; (5) the C phase connecting row 3, the A phase connecting row 1 and the B phase connecting row 2; (6) the C phase is connected with the row 3, the B phase is connected with the row 2, and the A phase is connected with the row 1.

As a specific embodiment of the switching line device of the molded case circuit breaker provided by the present invention, referring to fig. 1 to 7, a first wiring port 103 is disposed on a second end of the a-phase connection bank 1, a second wiring port 203 is disposed on a second end of the B-phase connection bank 2, a third wiring port 303 is disposed on a second end of the C-phase connection bank 3, and the first wiring port 103, the second wiring port 203, and the third wiring port 303 are sequentially distributed on an upper path and a lower path.

In this case, the lengths of the second conductor 102, the fourth conductor 202, and the sixth conductor 302 may be equal, and only the positions of the openings of the first wire connection port 103, the second wire connection port 203, and the third wire connection port 303 need to be staggered in the vertical direction, and the first wire connection port 103, the second wire connection port 203, and the third wire connection port 303 are staggered in the vertical direction, so that the cables are not concentrated at one height during installation, a certain avoidance space is provided for the cables at adjacent wire connection ports, and installation is facilitated, but a proper interval among the second conductor 102, the fourth conductor 202, and the sixth conductor 302 needs to be ensured.

In this embodiment, the first wire connection port 103, the second wire connection port 203 and the third wire connection port 303 are sequentially distributed at intervals on the upper and lower paths. The specific arrangement sequence from top to bottom can be as follows: (1) a first wiring port 103, a second wiring port 203 and a third wiring port 303; (2) a first wiring port 103, a third wiring port 303 and a second wiring port 203; (3) a second wiring port 203, a first wiring port 103 and a third wiring port 303; (4) a second wiring port 203, a third wiring port 303 and a first wiring port 103; (5) a third wiring port 303, a first wiring port 103 and a second wiring port 203; (6) a third wiring port 303, a second wiring port 203 and a first wiring port 103.

Referring to fig. 1 to 7, as an embodiment of the switching line device of the molded case circuit breaker according to the present invention, the length of the second conductor 102, the length of the fourth conductor 202, and the length of the sixth conductor 302 are sequentially increased. In the embodiment where the lengths of the second conductor 102, the fourth conductor 202 and the sixth conductor 302 are the same, the opening process needs to measure the distance between each wire connection port and the free end of the conductor before the opening process can be performed. In this embodiment, since the lengths of the second conductor 102, the fourth conductor 202, and the sixth conductor 302 are different, the opening is directly performed at the free end of the conductor, and the first wiring port 103, the second wiring port 203, and the third wiring port 303 are staggered in the vertical direction after installation, which not only reduces the manufacturing difficulty, but also reduces the material usage of the second conductor 102 and the fourth conductor 202, and reduces the production cost.

Referring to fig. 1 to 7, as an embodiment of the switching line device of the molded case circuit breaker according to the present invention, a free end of the second conductor 102 and a free end of the fourth conductor 202 are respectively bent forward, so that the first wiring port 103, the second wiring port 203, and the third wiring port 303 are spaced apart from each other at a predetermined interval in a front-back direction. In the above-described embodiment in which no mounting location is provided, the first wire connection port 103, the second wire connection port 203, and the third wire connection port 303 are only shifted in the vertical direction, and in this embodiment, the second conductor 102 is bent forward, the fourth conductor 202 is bent forward, and the first wire connection port 103, the second wire connection port 203, and the third wire connection port 303 are also shifted in the vertical direction. The structure not only facilitates wiring, but also relatively reduces the intervals among the second conductor 102, the fourth conductor 202 and the sixth conductor 302, improves the compactness of the structure, facilitates wiring, and reduces the occupation of space.

As a specific embodiment of the switching line device of the molded case circuit breaker provided by the present invention, please refer to fig. 1, 6 to 7, the two a-phase connecting rows 1 are stacked one on another, the plate surfaces of the first conductors 101 in the two a-phase connecting rows 1 are in contact with each other, the plate surfaces of the second conductors 102 in the two a-phase connecting rows 1 are in contact with each other, the first end of each a-phase connecting row 1 is electrically connected to the same upper wiring port, and the second ends are both connected to the same cable; the two B-phase connecting rows 2 are overlapped, the plate surfaces of the third conductors 201 in the two B-phase connecting rows 2 are in contact with each other in a fitting manner, the plate surfaces of the fourth conductors 202 in the two B-phase connecting rows 2 are in contact with each other in a fitting manner, the first end of each B-phase connecting row 2 is electrically connected with the same upper wiring port, and the second end of each B-phase connecting row 2 is connected with the same cable; the row 3 is connected to C has two that pile up each other and establish, and the face that fifth conductor 301 in two C are connected row 3 is laminating contact each other, and the face that sixth conductor 302 in two C are connected row 3 is laminating contact each other, and every C is connected row 3's first end all with same last wiring mouth electricity and is connected, the second end all with same cable junction.

When the current range is small (not more than 300A), the A-phase connecting bar 1, the B-phase connecting bar 2 and the C-phase connecting bar 3 can adopt a single-conductor installation form, namely, one A-phase connecting bar 1, one B-phase connecting bar 2 and one C-phase connecting bar 3 are arranged; if the current range is large (300A-600A), the A-phase connecting row 1, the B-phase connecting row 2 and the C-phase connecting row 3 are installed by adopting the double-conductor parallel structure of the embodiment, the applicable current range of the device is improved, and the service life of the device is prolonged.

Specifically, the first conductor 101, the third conductor 201, and the fifth conductor 301 are all hexagon socket head cap screws standard-matched with the molded case circuit breaker and connected with an upper wiring port of the molded case circuit breaker, so that a patch cord is realized without changing a self-part of the molded case circuit breaker. When the inner hexagon bolt is installed, a flat pad and a spring pad need to be sleeved, so that the bolt is prevented from loosening while the socket of the molded case circuit breaker is prevented from being damaged; the number of the second conductors 102 is two, the number of the first wiring ports 103 is also two, the two first wiring ports 103 are connected by a bolt, a flat pad, the first wiring port 103, a flat pad, a spring pad and a nut, and the second wiring port 203 and the third wiring port 303 are the same as the mounting structure of the first wiring port 103, and are not described again here.

As an embodiment of the switching line device of the molded case circuit breaker provided by the present invention, please refer to fig. 1 to 3, a first slot 401 for accommodating the phase a connection row 1, a second slot 402 for accommodating the phase B connection row 2, and a third slot 403 for accommodating the phase C connection row 3 are respectively disposed in the insulating housing 4. The installation process of the transfer line device can be as follows: (1) firstly, connecting an A-phase connecting bar 1, a B-phase connecting bar 2 and a C-phase connecting bar 3 with an upper wiring port of a molded case circuit breaker, aligning a first groove body 401 on an insulating shell 4 with the A-phase connecting bar 1, aligning a second groove body 402 with the B-phase connecting bar 2, aligning a third groove body 403 with the C-phase connecting bar 3, and then buckling the insulating shell 4 outside the A-phase connecting bar 1, the B-phase connecting bar 2 and the C-phase connecting bar 3; (2) firstly, the A-phase connecting bar 1 is placed in the first groove body 401, the B-phase connecting bar 2 is placed in the second groove body 402, the C-phase connecting bar 3 is placed in the third groove body 403, and then the A-phase connecting bar 1, the B-phase connecting bar 2, the C-phase connecting bar 3 and the insulating shell 4 are integrally installed on the molded case circuit breaker.

In this embodiment, through set up first cell body 401, second cell body 402 and third cell body 403 in insulating casing 4, make things convenient for A to be connected row 1, B looks run-on 2 and C and be connected the installation of row 3 to A is connected row 1, B looks run-on 2 and C and is connected row 3 and keep apart the setting, avoids contacting each other and lead to the electric power accident between A looks, B looks and the C.

As a specific embodiment of the switching line device of the molded case circuit breaker provided by the present invention, referring to fig. 1 to 3, a first cover plate 5 for covering the first slot 401, a second cover plate 6 for covering the second slot 402, and a third cover plate 7 for covering the third slot 403 are respectively disposed on the inner side of the insulating housing 4. The installation process of the transfer line device can be as follows: firstly, the A-phase connecting row 1 is placed in the first groove body 401, then the first groove body 401 is covered by the first cover plate 5, the B-phase connecting row 2 is placed in the second groove body 402, then the second groove body 402 is covered by the second cover plate 6, the C-phase connecting row 3 is placed in the third groove body 403, then the third groove body 403 is covered by the third cover plate 7, the integrity of the device is improved, in addition, the A-phase connecting row 1, the B-phase connecting row 2 and the C-phase connecting row 3 are sealed and installed, the installation performance of the device is improved, and the occurrence of electric leakage accidents is reduced.

Specifically, the first cover plate 5, the second cover plate 6 and the third cover plate 7 are all installed on the inner side of the insulating housing 4, and the first cover plate 5, the second cover plate 6 and the third cover plate 7 are all made of insulating materials, so that the attractiveness of the exterior of the device is improved, and the installation performance is also improved.

As a specific embodiment of the switching line device of the molded case circuit breaker provided by the present invention, please refer to fig. 1 to 3, a first protrusion 501 is disposed on the first cover plate 5, and a first clamping position 404 corresponding to the first protrusion 501 is disposed on the insulating housing 4; a second bulge 601 is arranged on the second cover plate 6, and a second clamping position 405 corresponding to the second bulge 601 is arranged on the insulating shell 4; a third protrusion 701 is disposed on the third cover plate 7, and a third clamping position 406 corresponding to the third protrusion 701 is disposed on the insulating housing 4. The installation states of the first cover plate 5, the second cover plate 6 and the third cover plate 7 are respectively limited by arranging the first clamping position 404, the second clamping position 405 and the third clamping position 406, so that the first cover plate 5, the second cover plate 6 and the third cover plate 7 are prevented from swinging backwards after being installed, and the installation stability is improved; and as long as the first protrusion 501 is aligned with the first clamping position 404, the mounting position of the first cover plate 5 is positioned, and the mounting process of the second cover plate 6 and the third cover plate 7 is the same as that of the first cover plate 5, so that the mounting is convenient, and the labor intensity is reduced.

Specifically, under the installation state of the first cover plate 5, the second cover plate 6 and the third cover plate 7, the outer surfaces of the first cover plate, the second cover plate and the third cover plate are flush with the inner side surface of the insulating shell 4, so that the smoothness degree of the whole outer surface is improved, sharp-angle scratches are prevented, and the appearance is optimized.

Referring to fig. 1 to 5, as a specific embodiment of the switching line device of the molded case circuit breaker according to the present invention, the insulating housing 4 is an L-shaped member, a plurality of mounting plates 8 are disposed at corners of the insulating housing 4 in a front-rear direction, and the mounting plates 8 are connected to each other by a threaded connection member. Through set up mounting panel 8 and connect upper thread connecting piece in insulating casing 4's corner inboard, extrude first apron 5, second apron 6 and third apron 7 in the front and back direction, improve the wholeness of device and the steadiness between each component, can also prevent that first apron 5, second apron 6 and third apron 7 from droing.

As a specific embodiment of the switching line device of the molded case circuit breaker according to the present invention, please refer to fig. 3, a plurality of mounting holes 9 are formed in a rear side surface of the insulating housing 4, and the mounting holes 9 may be parallel to the front-back direction or perpendicular to the front-back direction. The arrangement form of the mounting hole 9 on the insulating shell 4 can be as follows: (1) a mounting hole 9 arranged vertically to the front-back direction and a mounting hole 9 arranged parallel to the front-back direction; (2) two mounting holes 9 arranged in the front-back direction; (3) two parallels go the mounting hole 9 that the fore-and-aft direction set up, and the multiple equipment form of mounting hole 9 can be so that insulating casing 4 installs on the casing, and convenient fixed reduces the gravity that insulating casing 4 body was used in moulded case circuit breaker top.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.