CN213242418U

CN213242418U - Circuit breaker mounting structure

Info

Publication number: CN213242418U
Application number: CN202021630139.1U
Authority: CN
Inventors: 高仁旦; 郭德鑫; 江华华; 郑英川; 赵立博
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-18
Anticipated expiration: 2030-08-07

Abstract

The utility model provides a circuit breaker mounting structure, including the circuit breaker, the casing bottom of circuit breaker is equipped with the guide rail groove that holds transverse guide, hold transverse guide and install at guide rail inslot and circuit breaker fixed connection, transverse guide and the internal vertical guide rail fixed connection of cabinet, with circuit breaker fixed mounting at the internal of cabinet, set up the guide rail groove that holds transverse guide through the casing bottom at the circuit breaker, make the mounted position of circuit breaker sink, the casing bottom of circuit breaker can press close to or contact the bottom surface of the cabinet body, can reduce the internal height of circuit breaker assembly to the cabinet, simple structure need not to carry out too much transformation to current circuit breaker.

Description

Circuit breaker mounting structure

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to circuit breaker mounting structure.

Background

The existing molded case circuit breaker is usually installed in a limited and narrow cabinet space, particularly, the circuit breaker with an electric operating device is additionally arranged above the circuit breaker, the height is high, the traditional cabinet space is limited, and the problems of difficult installation and incapability of installation exist.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, save the circuit breaker mounting structure of mounting height.

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

the utility model provides a circuit breaker mounting structure, includes the circuit breaker, and the casing bottom of circuit breaker is equipped with the guide rail groove that holds transverse guide, and transverse guide installs at guide rail inslot and circuit breaker fixed connection, and transverse guide and the internal vertical guide fixed connection of cabinet are internal with circuit breaker fixed mounting at the cabinet.

Preferably, the thickness of the transverse guide rail is smaller than the depth of the guide rail groove.

Preferably, the circuit breaker further comprises an electrically operated device mounted on top of the circuit breaker.

Preferably, the shell of the circuit breaker comprises a body shell body consisting of a body base and a body cover plate, one side, far away from the body cover plate, of the bottom of the body base is the bottom of the shell body, two guide rail grooves are formed in the bottom of the shell body, a first wiring terminal and a second wiring terminal are arranged at two ends of the body shell body respectively, and the two guide rail grooves are arranged in parallel and located at two ends, corresponding to the first wiring terminal and the second wiring terminal, of the bottom of the shell body respectively.

Preferably, the guide rail groove is L-shaped, two guide rail grooves are respectively formed on the edges of two ends of the bottom of the shell, the guide rail groove comprises a guide rail groove bottom surface and a side wall, and a notch is formed on one side of the guide rail groove, which faces to two ends of the bottom of the shell; or the guide rail groove is U-shaped and comprises a guide rail groove bottom surface and side walls on two sides.

Preferably, the guide rail groove transversely runs through the body base, the two ends of the transverse guide rail extend out of the two sides of the circuit breaker so as to be fixedly connected with the vertical guide rail, a screw hole is formed in the guide rail groove, and a first connecting hole matched with the screw hole is formed in the transverse guide rail.

Preferably, the transverse guide rail is of a sheet strip structure, a first connecting hole for connecting with a circuit breaker is formed in the middle of the transverse guide rail, and second connecting holes for connecting with the vertical guide rail are formed in two ends of the transverse guide rail; the first connecting hole and/or the second connecting hole are/is of a long strip-shaped structure arranged along the length direction of the transverse guide rail.

Preferably, the vertical guide rail is of a sheet-shaped strip structure, a third connecting hole connected with the transverse guide rail and a fourth connecting hole fixedly connected with the cabinet body are arranged on the vertical guide rail, and the third connecting hole and/or the fourth connecting hole are/is of a long strip-shaped structure arranged along the length direction of the vertical guide rail.

Preferably, the transverse guide rail is provided with a U-shaped groove along the length direction of the transverse guide rail, and/or the vertical guide rail is provided with a U-shaped groove along the length direction of the vertical guide rail.

Preferably, an operating mechanism, a moving contact and a static contact which are matched with each other are arranged in the body shell, the moving contact is connected with the operating mechanism, one end of the handle is connected with the operating mechanism and is arranged in the body shell, the other end of the handle extends out of the body shell from the top of the body cover plate, and an arc extinguishing mechanism, an overload protection mechanism and an instantaneous protection mechanism are further arranged in the body shell; an electric operating cover plate is also arranged on the body cover plate, and an electric operating device is arranged between the electric operating cover plate and the body cover plate; the electric operating device comprises a motor, a transmission gear set connected with the motor, a driving gear set connected with the transmission gear set, and a sliding block matched with a handle, wherein a handle driving groove matched with the handle is formed in the sliding block, the handle extends into the handle driving groove, an eccentric shaft is arranged on the driving gear, a driving groove matched with the eccentric shaft is formed in the sliding block, the eccentric shaft and the driving groove of the sliding block are matched to drive the sliding block to move linearly in the swinging direction of the handle, the motor drives the driving gear to rotate through the transmission gear set, the driving gear rotates and drives the sliding block to move linearly in a reciprocating mode through the eccentric shaft, and the driving handle swings to achieve.

The utility model discloses a circuit breaker mounting structure through the guide rail groove that holds transverse guide in the casing bottom setting of circuit breaker, can reduce the internal height of circuit breaker assembly cabinet, and simple structure need not to carry out too much transformation to current circuit breaker.

Preferably, the thickness of the transverse guide rail is smaller than the depth of the guide rail groove, so that the transverse guide rail does not protrude out of the bottom of the shell, the installation position of the circuit breaker sinks, and the bottom of the shell of the circuit breaker can be close to or contact with the bottom surface of the cabinet body.

In addition, the circuit breaker is still including installing the electrically-operated device at body casing top, because the unusual compactness of inner space of circuit breaker, the structure is more, especially increases electrically-operated device after, its highly difficult to reduce through adjustment inner structure, this application adopts the mode that sets up the guide rail groove on the circuit breaker, through the mode of saving mounting structure's height, reduces the assembly height of circuit breaker to adapt to the current cabinet body, simple structure and easy-to-use, the practicality is high.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the circuit breaker of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the circuit breaker of the present invention;

fig. 3 is an assembly schematic view of the circuit breaker mounting structure of the present invention;

fig. 4 is a schematic structural view of the cross rail of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of a cabinet of the present invention.

Detailed Description

The following further describes a specific embodiment of the circuit breaker mounting structure according to the present invention with reference to the embodiments shown in fig. 1 to 5. The utility model discloses a circuit breaker mounting structure is not limited to the description of following embodiment.

As shown in fig. 1-3, a circuit breaker mounting structure includes a circuit breaker 1, a casing bottom 11 of the circuit breaker 1 is provided with a guide rail groove 116 for accommodating a transverse guide rail 6, the transverse guide rail 6 is mounted in the guide rail groove 116 and fixedly connected with the circuit breaker 1, the transverse guide rail 6 is fixedly connected with a vertical guide rail 7 in a cabinet 8, and the circuit breaker 1 is fixedly mounted in the cabinet 8. The utility model discloses a circuit breaker mounting structure through the guide rail groove 116 that holds transverse guide 6 in the setting of casing bottom 11 at circuit breaker 1, can reduce the height that circuit breaker 1 assembled the cabinet body 8, and simple structure need not to carry out too much transformation to current circuit breaker.

Preferably, the thickness of the transverse guide rail 6 is smaller than the depth of the guide rail groove 116, so that after the transverse guide rail 6 is installed in the guide rail groove 116, the transverse guide rail 6 does not protrude out of the housing bottom 11, and when the transverse guide rail 6 is fixedly connected with the vertical guide rail 7 in the cabinet 8, the housing bottom 11 can protrude out of the vertical guide rail 7, so that the installation position of the circuit breaker 1 sinks, and the housing bottom 11 of the circuit breaker 1 can be close to or contact with the bottom surface of the cabinet 8.

As shown in fig. 1-2, the circuit breaker 1 of the present invention is a molded case circuit breaker, the housing of which includes a body housing formed by a body base 13 and a body cover plate 12, and an electric operating cover plate 14 for accommodating an electric operating device is further disposed on the body cover plate 12. The side of the bottom of the body base 13 away from the body cover plate 12 is a shell bottom 11, and a guide rail groove 116 is arranged on the shell bottom 11 of the body base 13.

The swing handle can drive the moving contact to swing to be in contact with and separated from the fixed contact through the operating mechanism, and the switching-on and switching-off of the circuit breaker are achieved. Further, an arc extinguishing mechanism, an overload protection mechanism and an instantaneous protection mechanism are arranged in the body shell, the arc extinguishing mechanism is arranged opposite to the moving contact and the static contact and used for extinguishing electric arcs generated when the moving contact and the static contact are disconnected, when the overload protection mechanism breaks down in an overload mode, the overload protection mechanism triggers the operating mechanism to trip and open a brake to achieve overload protection, when the instantaneous protection mechanism breaks down in a short circuit mode, the operating mechanism is triggered to trip and open the brake to achieve short circuit protection, and a first wiring terminal 15 and a second wiring terminal 17 are arranged at two ends of the body shell respectively and used for connecting wires to be connected with a power supply and a load respectively. After the circuit breaker 1 is connected with a power supply and a load through the first wiring terminal 15 and the second wiring terminal 17, switching-on and switching-off, overload protection and short-circuit protection can be achieved through a manual operation handle. Of course, a leakage protection mechanism can be further arranged according to the requirement to realize that the leakage triggers the operating mechanism to trip. The body case and the mechanism in the body case constitute a circuit breaker body.

Further, the circuit breaker 1 further comprises an electric operating device installed at the top of the circuit breaker 1, and the electric operating device and the circuit breaker body form the circuit breaker capable of automatically reclosing. An electric operating cover plate 14 is further mounted on the body cover plate 12, an electric operating device is mounted between the electric operating cover plate 14 and the body cover plate 12, and the electric operating device drives a handle to swing to achieve switching-on and switching-off of the circuit breaker. The electric operating device comprises a motor, a transmission gear set connected with the motor, a driving gear connected with the transmission gear set, and a sliding block matched with a handle, wherein a handle driving groove matched with the handle is formed in the sliding block, the handle extends into the handle driving groove, an eccentric shaft is arranged on the driving gear, a driving groove matched with the eccentric shaft is formed in the sliding block, the eccentric shaft is matched with the driving groove of the sliding block to drive the sliding block to linearly move in the swinging direction of the handle, the motor drives the driving gear to rotate through the transmission gear set, the driving gear rotates to drive the sliding block to linearly move in a reciprocating mode through the eccentric shaft, and the driving handle swings to achieve automatic switching-on and switching-off.

Because the inside space of circuit breaker 1 is very compact, the structure is more, especially increases behind the electric operating means, and it highly is difficult to reduce through adjustment inner structure, and this application adopts the mode that sets up guide rail groove 116 on circuit breaker 1, through the mode of saving mounting structure's height, reduces the assembly height of circuit breaker to adapt to the current cabinet body, simple structure and easy-to-use, the practicality is high.

As shown in fig. 1-2, a first connection terminal 15 and a second connection terminal 17 are respectively provided at both ends of the body case for connecting wires to a power supply and a load, respectively. The housing bottom 11 is provided with two guide rail grooves 116, and the two guide rail grooves 116 are arranged in parallel and are respectively located at two ends of the housing bottom 11 corresponding to the first connection terminal 15 and the second connection terminal 17. A screw hole is arranged in the guide rail groove 116, a first connecting hole 61 matched with the screw hole is arranged on the transverse guide rail 6, and the transverse guide rail 6 is fixedly arranged in the guide rail groove 116 through the matching of the first screw and the screw hole.

The guide rail groove 116 is U-shaped or L-shaped. In the embodiment shown in fig. 1, two rail grooves 116 are formed in an L shape at the edges of the two ends of the bottom 11 of the housing, the rail grooves 116 include a rail groove bottom and a side wall, and the side of the rail grooves 116 facing the two ends of the bottom 11 of the housing is notched without providing the side wall. In the embodiment shown in fig. 2, the two rail channels 116 are U-shaped, including a rail channel bottom and two side walls.

Preferably, the thickness of the transverse rail 6 is smaller than the depth of the rail groove 116, so that the transverse rail 6 does not protrude from the housing bottom 11 after the transverse rail 6 is mounted in the rail groove 116. The guide rail groove 116 transversely penetrates through the body base 13, and two ends of the transverse guide rail 6 extend out of two sides of the circuit breaker 1 so as to be fixedly connected with the vertical guide rail 7.

As shown in fig. 4, the transverse guide 6 is a sheet-shaped bar structure, a first connection hole 61 for connecting with the circuit breaker 1 is provided in the middle of the transverse guide 6, and second connection holes 62 for connecting with the vertical guide 7 are provided at both ends of the transverse guide 6. Preferably, the first connection hole 61 and/or the second connection hole 62 are/is formed in a long bar shape along the length direction of the cross rail 6, so that the assembling position can be adjusted in the transverse direction. Preferably, the cross-rail 6 is U-shaped in cross-section perpendicular to the length direction of the cross-rail 6, and the cross-rail 6 is provided with a U-shaped groove along its length direction, so that the screw head of the first screw to be fixedly connected can be received in the U-shaped groove.

As shown in fig. 3, the vertical guide rail 7 is fixedly installed in the cabinet body 8 and is in a sheet-shaped strip structure, the vertical guide rail 7 is provided with a third connecting hole 71 connected with the transverse guide rail 6 and a fourth connecting hole 72 fixedly connected with the cabinet body 8, and the third connecting hole 71 and/or the fourth connecting hole 72 are/is in a long strip structure arranged along the length direction of the vertical guide rail 7, so that the assembly position can be adjusted vertically. Preferably, the section of the vertical guide rail 7 perpendicular to the length direction of the guide rail 7 is U-shaped, and the vertical guide rail 7 is provided with a U-shaped groove along the length direction thereof.

As shown in fig. 5, the cabinet body 8 is a box type with an opening on one side, the cabinet body cover 81 is arranged on one side of the opening, the vertical guide rails 7 are arranged in the cabinet body 8, the two vertical guide rails 7 are arranged at intervals, two ends of the two transverse guide rails 7 are respectively connected with two ends of the two vertical guide rails 7 to form a quadrilateral structure, and the two transverse guide rails 7 are arranged in the guide rail grooves 116 of the bottom 11 of the shell of the circuit breaker 1.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A circuit breaker mounting structure comprising a circuit breaker (1), characterized in that: a guide rail groove (116) for accommodating a transverse guide rail (6) is formed in the bottom (11) of a shell of the circuit breaker (1), the transverse guide rail (6) is installed in the guide rail groove (116) and fixedly connected with the circuit breaker (1), the transverse guide rail (6) is fixedly connected with a vertical guide rail (7) in a cabinet body (8), and the circuit breaker (1) is fixedly installed in the cabinet body (8).

2. The circuit breaker mounting structure according to claim 1, wherein: the thickness of the transverse guide rail (6) is smaller than the depth of the guide rail groove (116).

3. The circuit breaker mounting structure according to claim 1, wherein: the circuit breaker (1) also comprises an electric operating device arranged on the top of the circuit breaker (1).

4. The circuit breaker mounting structure according to claim 1, wherein: the casing of circuit breaker (1) includes the body casing that body base (13) and body apron (12) constitute, bottom one side that body apron (12) were kept away from in body base (13) is casing bottom (11), be equipped with two guide rail grooves (116) in casing bottom (11), be equipped with first binding post (15) and second binding post (17) respectively at the both ends of body casing, two guide rail groove (116) parallel arrangement are located the both ends that correspond first binding post (15) and second binding post (17) respectively on casing bottom (11).

5. The circuit breaker mounting structure according to claim 4, wherein: the guide rail groove (116) is L-shaped, the two guide rail grooves are respectively formed at the edges of the two ends of the bottom (11) of the shell, the guide rail groove (116) comprises a guide rail groove bottom surface and a side wall, and a notch is formed by the guide rail groove (116) towards one side of the two ends of the bottom (11) of the shell; or the guide rail groove (116) is U-shaped and comprises a guide rail groove bottom surface and side walls on two sides.

6. The circuit breaker mounting structure according to claim 4, wherein: guide rail groove (116) are horizontal to run through body base (13), and the both sides that stretch out circuit breaker (1) at transverse guide rail (6) both ends are convenient for with vertical guide rail (7) fixed connection, are equipped with the screw hole in guide rail groove (116), are equipped with on transverse guide rail (6) with screw hole complex first connecting hole (61).

7. The circuit breaker mounting structure according to claim 1, wherein: the transverse guide rail (6) is of a sheet strip structure, a first connecting hole (61) used for being connected with the circuit breaker (1) is formed in the middle of the transverse guide rail (6), and second connecting holes (62) used for being connected with the vertical guide rail (7) are formed in the two ends of the transverse guide rail (6); the first connecting hole (61) and/or the second connecting hole (62) are/is of a long strip-shaped structure arranged along the length direction of the transverse guide rail (6).

8. The circuit breaker mounting structure according to claim 1, wherein: vertical guide rail (7) become slice bar structure, be equipped with third connecting hole (71) be connected with transverse guide (6) on vertical guide rail (7), with cabinet body (8) fixed connection's fourth connecting hole (72), third connecting hole (71) and/or fourth connecting hole (72) are the rectangular shape structure that sets up along vertical guide rail (7) length direction.

9. The circuit breaker mounting structure according to claim 1, wherein: the transverse guide rail (6) is provided with a U-shaped groove along the length direction of the transverse guide rail, and/or the vertical guide rail (7) is provided with a U-shaped groove along the length direction of the vertical guide rail.

10. The circuit breaker mounting structure according to claim 4, wherein: an operating mechanism, a moving contact and a static contact which are matched with each other are arranged in the body shell, the moving contact is connected with the operating mechanism, one end of a handle is connected with the operating mechanism and is arranged in the body shell, the other end of the handle extends out of the body shell from the top of a body cover plate (12), and an arc extinguishing mechanism, an overload protection mechanism and an instantaneous protection mechanism are further arranged in the body shell; an electric operating cover plate (14) is also arranged on the body cover plate (12), and an electric operating device is arranged between the electric operating cover plate (14) and the body cover plate (12); the electric operating device comprises a motor, a transmission gear set connected with the motor, a driving gear set connected with the transmission gear set, and a sliding block matched with a handle, wherein a handle driving groove matched with the handle is formed in the sliding block, the handle extends into the handle driving groove, an eccentric shaft is arranged on the driving gear, a driving groove matched with the eccentric shaft is formed in the sliding block, the eccentric shaft and the driving groove of the sliding block are matched to drive the sliding block to move linearly in the swinging direction of the handle, the motor drives the driving gear to rotate through the transmission gear set, the driving gear rotates and drives the sliding block to move linearly in a reciprocating mode through the eccentric shaft, and the driving handle swings to achieve.