CN216958878U

CN216958878U - Novel low-voltage switch cabinet bus system

Info

Publication number: CN216958878U
Application number: CN202220655519.3U
Authority: CN
Inventors: 王春军
Original assignee: Ferranti Electric Shanghai Co ltd
Current assignee: Ferranti Electric Shanghai Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-12
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a novel low-voltage switch cabinet bus system which comprises a tubular main bus, a bus insulation support plate, a laminated branch bus and a bus connector, wherein the tubular main bus is in a cylindrical shape, the bus insulation support plate is arranged at the front end of the tubular main bus, the bus connector is arranged at the front end of the bus insulation support plate, the bus insulation support plate is arranged at the bottom end of the tubular main bus, a tubular groove is arranged on the inner wall of the top end of the bus insulation support plate, a spring contact finger is arranged on the front outer wall of the bus connector, and a connecting copper pipe is fixedly connected to the outer wall of the front end of the spring contact finger.

Description

Novel low-voltage switch cabinet bus system

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to a novel low-voltage switch cabinet bus system.

Background

The low-voltage switch cabinet is a switch complete equipment for low-voltage power distribution and protection, and is relatively popularized in application in a power distribution network, but the size of the current switch cabinet is large, the number of copper bars is large, especially a large-current switch cabinet needs to be used, more pieces of rectangular copper bars need to be used, a large number of connecting bolts are needed, the installation is complex, due to the skin effect and the influence of the proximity effect, the utilization rate of the copper bars is not high, and the main bus bar of the large-current rectangular needs 6 pieces of copper bars or even 12 pieces of copper bars, and a very high installation space is needed, and fastening bolts are needed, and the field installation is very difficult.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a novel low-voltage switch cabinet bus system, which is used for solving the problems of large consumption of a switch cabinet bus bar, large installation occupied space, complex connection and difficult installation and use.

(II) technical scheme

In order to realize the purpose, the utility model is realized by the following technical scheme: the utility model provides a novel low-voltage switchgear generating line system, includes cast main bus, bus insulation backup pad, lamination branch generating line, bus connector, cast main bus is the cylinder shape, is located cast main bus front end is provided with bus insulation backup pad, is located bus insulation backup pad front end is provided with bus connector, is located cast main bus bottom is provided with bus insulation backup pad, is located bus insulation backup pad top inner wall is provided with the cast slot, is located outer wall is provided with the spring before the bus connector and touches and indicate, is located the spring touches and indicates front end outer wall fixedly connected with connection copper pipe.

Preferably, the laminated branch bus is arranged at the bottom end of the bus insulation supporting plate, connecting copper bars are uniformly distributed on the outer wall of the front end of the laminated branch bus, and outlet row openings are formed in the bottom ends of the connecting copper bars.

Preferably, an insulating baffle is arranged on the right side of the top end of the laminated branch bus, and a plug-in contact finger is arranged on the top end of the insulating baffle.

Preferably, a C-phase copper plate is arranged on the right side of the laminated branch bus, a B-phase copper plate is arranged on the right side of the C-phase copper plate, an interphase insulating plate is arranged on the right side of the B-phase copper plate, and an A-phase copper plate is arranged on the right side of the interphase insulating plate.

Preferably, the bottom end of the front side of the connecting copper bar is provided with a nut and is connected with the nut through threads, and the bottom end of the rear end of the connecting copper bar is provided with a gasket.

Preferably, the rear end of the outer wall of the connecting copper bar is provided with a connecting bolt and connected through threads, and the top end of the connecting copper bar is provided with an insulating sleeve.

(III) advantageous effects

The utility model provides a novel low-voltage switch cabinet bus system. The method has the following beneficial effects:

(1) this kind of novel low-voltage switchgear generating line system, through unique generating line system, cast main bus bears the electric current big, anti short-circuit current can the reinforce, shared installation space size is little, lamination equipment formula branch generating line adopts the thin copper board as branch generating line, with little flux, heat radiating area is big, the unit mount, intensity is high, directly link to each other with the circuit breaker, the return circuit is short, it is little to generate heat, through the high-speed joint technique, main bus adopts the spring to touch and indicates the connector, branch generating line and main bus direct plug-in technique, realize quick installation, the on-the-spot main bus high-speed joint of cubical switchboard, through the function of the mutual cooperation of relevant structural component, so it is big to solve the female consumption of arranging of cubical switchboard, the installation occupation space is big, connect complicacy, the problem of installation use difficulty.

Drawings

FIG. 1 is a schematic diagram of a low-voltage switchgear bus bar system embodiment of the present invention;

FIG. 2 is a schematic view of a laminated branch bus bar of the switchgear bus bar system of the present invention;

FIG. 3 is a schematic diagram of a main bus of the switchgear bus system of the present invention;

fig. 4 is a schematic illustration of a branch bus installation of the switchgear bus system of the present invention.

In the figure: 1. a tubular main bus; 2. a bus insulating support plate; 3. a bus connector; 4. a tubular groove; 5. laminating the branch bus; 6. connecting the copper bars; 7. an outlet discharge opening; 8. a spring contact finger; 9. connecting a copper pipe; 10. inserting contact fingers; 11. an insulating baffle; 12. a phase A copper plate; 13. a phase B copper plate; 14. c phase copper plate; 15. interphase insulating plates; 16. an insulating sleeve; 17. a connecting bolt; 18. a gasket; 19. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: a novel low-voltage switch cabinet bus system comprises a tubular main bus 1, a bus insulation support plate 2 and a laminated branch bus 4 tubular groove; 5. the bus connector 3, the tubular main bus 1 is cylindrical, a bus insulation support plate 2 is arranged at the front end of the tubular main bus 1, the bus connector 3 is arranged at the front end of the bus insulation support plate 2, the bus insulation support plate 2 is arranged at the bottom end of the tubular main bus 1, a tubular groove is arranged on the inner wall of the top end of the bus insulation support plate 2, a spring contact finger 8 is arranged on the front outer wall of the bus connector 3, and a connecting copper pipe 9 is fixedly connected to the outer wall of the front end of the spring contact finger 8; embodiments of the present invention will be further described with reference to the accompanying drawings. Fig. 1 is a schematic diagram of an embodiment of a novel low-voltage switchgear bus system according to the present invention; fig. 2 is a laminated branch bus bar 4-tube type groove according to an embodiment of the bus bar system of the low-voltage switch cabinet; 5, schematic view; fig. 3 is a schematic diagram of a main bus of an embodiment of the bus system of the low-voltage switchgear of the present invention; fig. 4 is a schematic diagram of the installation of branch buses according to the embodiment of the bus system of the low-voltage switch cabinet of the present invention. As shown in the figure, the utility model provides a novel low-voltage switch cabinet bus system, which comprises a tubular main bus 11, a main bus connector 33 and a laminated branch bus 4 tubular groove; the tubular main bus 1 adopts a circular tube type, the spring contact connectors are used for the mutual connection between the tubular main buses 1, and the branch buses 4 are laminated into tubular grooves; and 5, the insulating plate and the plate type bus are assembled, the insulating plate and the plate type bus are quickly connected through a connector, and the tubular main bus 1 is fixed to the top of the switch cabinet through an insulating support plate.

A laminated branch bus 4-tube type groove is arranged at the bottom end of the bus insulation support plate 2; 5, a 4-tube groove positioned in the laminated branch bus; 5, connecting copper bars 6 are uniformly distributed on the outer wall of the front end of the copper bar, and wire outlet row openings 7 are formed at the bottom ends of the connecting copper bars 6; the tubular main bus 1 is installed at the top of the cabinet body through a bus insulation support plate 2, the bus connector 3 comprises a tubular connector and a spring contact finger 8 wound on a connector groove, the main bus of the switch cabinet is connected with the main buses of two adjacent switch cabinets through the connector, the lower part of the main bus is provided with a hole for being connected with a branch bus, the branch bus adopts a laminated assembly type mechanism, a thin copper plate is clamped between insulation plates and insulated through an insulation sleeve 16, and the thin copper plate is fixed into an integral structure through bolts and installed in the middle of the switch cabinet, so that the occupied space is small.

The 4-tube type groove is positioned in the laminated branch bus; an insulating baffle 11 is arranged on the right side of the top end of the insulating baffle 5, and a plug-in contact finger 10 is arranged at the top end of the insulating baffle 11; the branch bus is composed of thin copper plates and interphase insulation plates 15, the thin copper plates are clamped between the insulation plates, an A-phase copper plate 12, a B-phase copper plate 13 and a C-phase copper plate 14 are clamped between the interphase insulation plates 15, insulation baffles 11 are arranged in the horizontal direction for insulation support, the copper plates are large in area, strong in current conduction capacity and large in heat dissipation area, the insulation plates can play an insulation role, and meanwhile, the branch bus is high in strength and can bear short-circuit current force.

The 4-tube type groove is positioned in the laminated branch bus; a C-phase copper plate 14 is arranged on the right side of the phase-C copper plate 5, a B-phase copper plate is arranged on the right side of the C-phase copper plate 14, an interphase insulating plate 15 is arranged on the right side of the B-phase copper plate 13, and an A-phase copper plate 12 is arranged on the right side of the interphase insulating plate 15; the upper part of the branch bus is provided with a plugging contact finger 10 which can be directly inserted into a long waist groove hole of the main bus, the contact finger has elasticity and is in direct contact with the groove to bear current, a spring contact finger 8 connector of the tubular main bus 1 adopts a groove on a round copper pipe, a spring contact finger 8 is arranged in the groove, the tubular main bus is in direct contact with the inner wall of the main bus, a plugging contact of the branch bus is formed by directly bending a thin copper plate, the length is long, the length direction is cut off, and the plugging contact is in direct contact with the inner wall of the groove of the round pipe to conduct current.

The bottom end of the front side of the connecting copper bar 6 is provided with a nut 19 and is connected with the nut through threads, and the bottom end of the rear end of the connecting copper bar 6 is provided with a gasket 18; an opening is formed in the laminated assembly branch bus for the circuit breaker to pass through a wire outlet copper bar, meanwhile, the A, B, C-phase thin plate bus is respectively connected with the connecting copper bar 6 and the circuit breaker wire inlet, and a laminated branch bus 4-tube-type groove is formed; 5, an opening is arranged at the upper part of the box body, and a copper bus of the switch device passes through the opening.

The rear end of the outer wall of the connecting copper bar 6 is provided with a connecting bolt 17 and is connected with the connecting bolt through threads, and the top end of the connecting copper bar 6 is provided with an insulating sleeve 16; the laminated assembly bus passes through the three-phase thin copper plate and the interphase insulation plate 15 through a bolt, a gasket 18 and an insulation sleeve 16 to be connected, and is fixed through a nut 19, and the branch bus 4-tube-type groove is laminated; and 5, a copper bar is connected with the thin copper plate, and the switch is connected for wire inlet of the switch.

The working principle is as follows: the current-carrying capacity of the tubular main bus 1 is directly connected with the tubular bus connector 3 through the spring contact finger 8, and the bottom of the tubular main bus is provided with a groove and a laminated branch bus 4 tubular groove; 5, connecting plug-in units are connected, and the connecting plug-in units are also formed by bending thin plates, so that the area is large, and a plurality of contact points are provided; laminating a branch bus 4-tube type groove; 5, separating the branch buses at intervals through insulating plates, forming an integrated structure through bolts and insulating sleeves 16, and laminating 4-tube-type grooves of the branch buses; 5 the upper part outlet row opening 7 is used for the outlet copper bar to pass through, and the upper end connecting copper bar 6 is connected with the end of the breaker.

Therefore, the utility model adopts the unique bus structure with the structure, the diameter is large, the current-carrying capacity is large, and the occupied space is small; the unique bus connector 3 ensures reliable connection, has small temperature rise and is very simple to install on site; the laminated thin copper plate bus has large current-carrying capacity and good heat dissipation. The insulation board lamination structure has strong short circuit resistance and small occupied space, and is suitable for compact switch cabinets. The branch bus is connected with the main bus connector, and the connecting connector is also formed by bending a thin plate, so that the area is large, a plurality of contact points are provided, the bearing current is large, and the installation is convenient and quick; compared with the traditional rectangular bus, the tubular bus and the thin plate bus save more than half of the copper usage amount, realize low carbon and environmental protection, save resources and reduce energy loss of skin and proximity effects.

The utility model comprises the following steps: 1. a tubular main bus; 2. a bus insulating support plate; 3. a bus connector; 4. a tubular groove; 5. laminating the branch bus; 6. connecting the copper bars; 7. an outlet discharge opening; 8. a spring contact finger; 9. connecting a copper pipe; 10. inserting contact fingers; 11. an insulating baffle; 12. a phase A copper plate; 13. a phase B copper plate; 14. c phase copper plate; 15. interphase insulating plates; 16. an insulating sleeve; 17. a connecting bolt; 18. a gasket; 19. the utility model solves the problems that a high-current switch cabinet needs to use more rectangular copper bars, needs a large number of connecting bolts and is complex to install, the utilization rate of the copper bars is not high due to the influence of skin effect and proximity effect, and the high-current rectangular main bus bar needs 6 or even 12 copper bars, needs a very high installation space and needs fastening bolts and is very difficult to install on site.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel low-voltage switchgear generating line system which characterized in that: including cast main bus (1), bus insulation backup pad (2), lamination branch generating line (5), bus connector (3), cast main bus (1) is the cylinder shape, is located cast main bus (1) front end is provided with bus insulation backup pad (2), is located bus insulation backup pad (2) front end is provided with bus connector (3), is located cast main bus (1) bottom is provided with bus insulation backup pad (2), is located bus insulation backup pad (2) top inner wall is provided with cast slot (4), is located bus connector (3) front outer wall is provided with the spring and touches and indicates (8), is located spring touches and indicates (8) front end outer wall fixedly connected with connecting copper pipe (9).

2. The novel low-voltage switchgear busbar system according to claim 1, wherein: the laminated branch bus (5) is arranged at the bottom end of the bus insulation supporting plate (2), the connecting copper bars (6) are uniformly distributed on the outer wall of the front end of the laminated branch bus (5), and the outlet row openings (7) are formed in the bottom ends of the connecting copper bars (6).

3. The novel low-voltage switchgear busbar system according to claim 1, wherein: an insulating baffle (11) is arranged on the right side of the top end of the laminated branch bus (5), and a plug-in contact finger (10) is arranged on the top end of the insulating baffle (11).

4. The novel low-voltage switchgear busbar system according to claim 1, wherein: the laminated branch bus bar is characterized in that a C-phase copper plate (14) is arranged on the right side of the laminated branch bus bar (5), a B-phase copper plate is arranged on the right side of the C-phase copper plate (14), an interphase insulating plate (15) is arranged on the right side of the B-phase copper plate (13), and an A-phase copper plate (12) is arranged on the right side of the interphase insulating plate (15).

5. The novel low-voltage switchgear busbar system according to claim 2, wherein: the bottom end of the front side of the connecting copper bar (6) is provided with a nut (19) which is connected through threads, and the bottom end of the rear end of the connecting copper bar (6) is provided with a gasket (18).

6. The novel low-voltage switchgear busbar system according to claim 2, wherein: the rear end of the outer wall of the connecting copper bar (6) is provided with a connecting bolt (17) and is connected through threads, and the top end of the connecting copper bar (6) is provided with an insulating sleeve (16).