CN209150496U - A busbar quick plug-in device - Google Patents

Abstract

The utility model relates to a kind of busbar rapid insertion devices, belong to civilian and industrial building low-voltage distribution technical field, and it is long to solve the problems, such as that the main busbar of grafting power distribution cabinet needs to be transformed power distribution cabinet, power off time.The device includes: cabinet, including front and back panels, left and right side plate, upper cover plate and lower plate；Bracket, including guide rail and insulation crossbeam respectively install a guide rail on left and right side plate, and four eradication edge crossbeam of side plate vertical direction setting is mounted on guide rail, and insulation crossbeam position can be adjusted before and after guide rail；Four busbar connectors are separately fixed on four eradication edge crossbeams, and bus clip is arranged in lower end, and bus clip and busbar main in power distribution cabinet are mating, and the interface connecting with external power supply cable or auxiliary bus-bar is arranged in upper end；Present apparatus structure is simple, and stability and high reliablity, grafting process is simple, strong operability, realizes the quick grafting of busbar, without being transformed to power distribution cabinet, effectively reduces the prolonged influence having a power failure to electricity consumption user.

Description

A busbar quick plug-in device

technical field

The utility model relates to the technical field of low-voltage power distribution in civil and industrial buildings.

Background technique

In the power supply system, after the complete set of low-voltage power distribution devices in the building is completed, if a large feed-out loop needs to be added to supply power to temporary large-scale equipment, or it needs to be temporarily connected with an external diesel generator set (or other guaranteed power supply) to To improve the reliability of power supply, a special transformation plan is needed, and the power distribution cabinet must be dismantled for transformation.

Utility model content

In view of the above analysis, the present utility model aims to provide a busbar quick plug-in device to solve the problems that the main busbar of the existing power distribution cabinet needs to be rebuilt and the power outage time is long.

The purpose of the present utility model is mainly achieved through the following technical solutions:

A busbar quick plug-in device is provided, including a box body, a bracket and a busbar connector;

The box body includes front and rear panels, left and right side panels, an upper cover plate and a lower bottom plate;

The bracket includes guide rails and insulating beams. One guide rail is installed on the inner side of the left and right side panels along the vertical direction to the front panel. Four insulating beams are arranged on the left and right side panels in the vertical direction. The insulating beams are installed at both ends. On the guide rail, adjust the position of the insulating beam forward and backward through the guide rail;

There are four busbar connectors in total, which are respectively installed on different insulating beams and are perpendicular to the direction of the insulating beams;

The busbar connector is provided with a busbar clamp at the lower end, the busbar clamp is connected to the main busbar (bare busbar) in the power distribution cabinet, and the upper end is provided with an interface for connecting with an external power supply cable or busbar.

The beneficial effects of the utility model are as follows: by arranging different types of busbars and cable switching devices, the power distribution cabinet can be connected according to actual work needs. strong sexual characteristics. The adoption of this device will stably, reliably and quickly connect to the high-current circuit of the power distribution cabinet without the need to transform the power distribution cabinet and without a long-term power outage. It has good application prospects in the civil or industrial fields. .

On the basis of the above scheme, the utility model has also carried out the following improvements:

Further, the specifications of the four busbar connectors are exactly the same.

Further, the busbar connector includes a busbar clamp, a lower section connecting busbar, and an upper section connecting busbar, and the lower section connecting busbar and the upper section connecting busbar are connected by bolts.

Further, the upper end of the lower section connecting busbar and the lower end of the upper section connecting busbar are provided with a plurality of through holes of the same size for passing through the bolts; overall height.

Further, the through holes are elongated through holes, and the through holes on the same busbar connector are arranged at equal intervals.

Further, the lower opening of the busbar clip has elasticity, and the shortest distance between the openings is smaller than the thickness of the main busbar.

Further, the busbar clips are integrally formed copper sheets, and the copper sheets are U-shaped.

Further, there are four busbar clips in total, which are staggered at the positions where they are inserted with the main busbars, and the planes where they are located are connected in an "N" shape in sequence.

Further, a perforation is formed on the insulating beam; the busbar connector is fixed on the insulating beam by bolts.

Further, the outer layer of the bus bar clip is provided with an insulating resin layer.

Additional features and advantages of the invention will be set forth in the description which follows, and some of the advantages may become apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the present invention may be realized and attained by the contents particularly pointed out in the description, claims and drawings.

Description of drawings

The drawings are for the purpose of illustrating specific embodiments only, and are not considered to be a limitation of the present invention, and the same reference numerals refer to the same parts throughout the drawings.

FIG. 1 is a perspective view of a busbar quick plug-in device in an embodiment of the present invention

Fig. 2 is the front view of the busbar quick plug-in device in the embodiment of the present invention;

3 is a top view of a busbar quick plug-in device in an embodiment of the present invention;

4 is a side view of the busbar quick plug-in device in the embodiment of the present invention;

FIG. 5 is an enlarged view of a busbar connector in an embodiment of the present invention.

Reference number:

1- distribution cabinet; 2- main busbar (bare busbar) of distribution cabinet; 3-box; 4-busbar connector; 5-rail; 6-insulation beam; 7-lower connecting busbar; 8- The upper section is connected to the busbar; 9-height adjusting bolt; 10-busbar clamp; 11-connecting port with external cable or busbar; 12-busbar clamp insulation layer.

Detailed ways

The preferred embodiments of the present utility model will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present utility model, are used to explain the principles of the present utility model, and are not intended to limit the present utility model. scope.

A specific embodiment of the present utility model discloses a busbar quick plug-in device. As shown in Figures 1 to 5, it includes a box body (3), a bracket, and a busbar connector (4);

The box body includes: front and rear panels, left and right panels, upper cover and lower bottom;

The bracket includes: guide rails (5) and insulating beams (6), one guide rail (5) is installed on the inner side of the left and right side panels along the vertical direction to the front panel, and four insulating beams are arranged on the left and right side panels in the vertical direction (6); both ends of the insulating beam (6) are installed on the guide rail (5), and the position of the insulating beam (6) is adjusted through the guide rail front and rear to adjust the position of the insulating beam (6);

There are four busbar connectors in total, and each busbar connector (4) is installed on a different insulating beam (6) and is perpendicular to the direction of the insulating beam (6); the lower end of each busbar connector (4) is provided with There are busbar clamps (10) that are inserted and matched with the main busbar (bare busbar) (2) of the power distribution cabinet in the power distribution cabinet (1), and the upper end is provided with an interface (11) for connecting with an external power supply cable or a spare busbar. ).

When implementing, just lift the top plate of the power distribution cabinet during use, and connect the busbar clip at the lower end of the busbar connector to the main busbar (bare busbar) of the low-voltage power distribution cabinet reliably, so as to meet the required rated current access, the busbar. The upper end of the row connector is connected with the external cable or busbar connection port to connect with the cable or emergency busbar to meet the needs of inputting or outputting rated current; after the work is completed, remove the access cable or emergency busbar, pull out the busbar clamp, and distribute the power distribution Close the lid of the cabinet.

Compared with the prior art, the busbar quick plug connection device provided in this embodiment has the characteristics of simple structure, high stability and reliability, simple access process, and strong operability. By setting up different types of busbar quick plug-in devices, according to actual work needs, access to the power distribution cabinet. The use of this device will stabilize the power distribution cabinet without the need to modify the power distribution cabinet for a long time. Reliable and fast access to the high-current circuit of the power distribution cabinet has a good application prospect in the civil or industrial field.

Specifically, the size of the box in the device can be designed with different types of busbar connectors according to actual needs and general distribution cabinet specifications, so that the box can be separately fixed on the top of the power distribution cabinet. Specifically, the box body includes at least front and rear panels, left and right side panels, an upper cover panel and a lower bottom panel.

The setting of the bracket is to adjust the spacing of each busbar connector along the vertical direction of the main busbar (bare busbar), so as to adapt to the different spacing of the main busbar (bare busbar). Corresponding guide rails (5) are respectively provided on the two side panels of the box body, and two ends of the four insulating beams are provided with protrusions matched with the guide rails, so that the distance between the insulating beams can be adjusted, that is, the busbar connectors spacing between. At the same time, in order to improve the stability of fixing the insulating beam, a number of limit pins are arranged on the guide rail to fix the insulating beam at a designated position. Exemplarily, each busbar connection member may be fixedly installed on different insulating beams by means of bolting.

It should be noted that the specifications of the four busbar connectors in this device are exactly the same; each busbar connector includes a busbar clamp, a lower section connecting busbar, an upper section connecting busbar, and height adjustment bolts; the lower section connecting busbar is connected to the upper section. The busbars are connected by height adjustment bolts (9).

The upper connecting busbar is connected with the external power supply cable or busbar, specifically, the upper end of the upper connecting busbar is provided with an interface or a plug hole (11), which is connected with the external power supply cable and the emergency busbar.

The lower end of the upper connecting busbar is provided with through holes for penetrating the bolts for penetrating the bolts; the upper end of the lower connecting busbar is also provided with elongated through holes for penetrating the bolts. It should be noted that the size of the upper through holes of the lower connecting busbar is the same as the size and number of through holes arranged at the lower end of the upper connecting busbar, and the spacing between the through holes is exactly the same. The different through holes cooperate with each other to realize the lower section. The fixing of the connecting busbar and the connecting busbar of the upper section, and the adjustment of the overall height of the busbar connecting piece; specifically, the fixing is realized by through bolts and nuts, and the number of through holes is at least two, preferably, the upper end of the connecting busbar is connected in the lower section. There are three through holes at the lower end of the connecting busbar with the upper section, and the spacing between the through holes is equal; during the plug-in work, the different through holes can be combined and the height can be adjusted so as to adapt to the main busbar ( The height position of the bare busbar); in particular, the rough adjustment is completed by means of through-hole matching, and further, the through-hole can be made into a long strip, so as to finely adjust the height of the busbar connector.

The lower connecting busbar is plugged and matched with the main busbar (bare busbar) in the power distribution cabinet; specifically, the lower end of the lower connecting busbar is provided with a busbar clip, which is used to plug in the main busbar (bare busbar) in the power distribution cabinet. ; The busbar clip is a copper sheet, and an insulating resin layer is provided outside the busbar clip. Through the busbar clip, on the one hand, the main busbars (bare busbars) arranged vertically can be better contacted with the device to achieve good electrical conductivity, and on the other hand, the device can be stably fixed during installation to ensure work. Stable and safe.

One end of the busbar clamp close to the lower section connecting the busbar is the fixed end, and the other end (ie the lower end) is the free end. The free end has a certain elasticity, that is, when an external force acts on the busbar clamp, the free end of the busbar clamp can be opened or closed, and when the external force disappears, the free end of the busbar clamp can return to the original position.

The busbar clip can be composed of two symmetrical copper sheets connected to each other at the fixed end, or it can be integrally formed from one copper sheet. The shape of the lower opening of the busbar clip can be various, and it can be U-shaped. Preferably, an integrated structure is adopted, so as to simplify the busbar clamp structure and improve the stability at the same time.

During the plug-in process, the elasticity of the copper sheet structure itself can be used to reliably clamp the main busbar (bare busbar). Specifically, the shortest distance between the lower openings of the busbar clips is set to be smaller than the thickness of the main busbar (bare busbar), and when plugged into the main busbar (bare busbar), the main busbar (bare busbar) can The free end of the busbar clamp generates an outward thrust to force the busbar clamp to open outward, and the main busbar (bare busbar) can squeeze into the gap between the busbar clamp openings; then, under the action of the busbar clamp's own elastic force , the free end of the busbar clamp has a tendency to close inward to return to its original state, that is, the busbar clamp itself can generate an inward pressing force on the main busbar (bare busbar) to ensure that the busbar clamp is connected to the main busbar (bare busbar). ) reliable electrical connection.

The four busbar connectors (from front to back are busbar connector 1, busbar connector 2, busbar connector 3, busbar connector 4) are respectively used to connect with the three phase wires and the middle Line busbar connection, specifically, the busbar connector 1 is connected to the phase line L1 busbar, the busbar connector 2 is connected to the phase line L2 busbar, the busbar connector 3 is connected to the phase line L3 busbar, the busbar The connector 4 is connected to the neutral line N busbar.

Considering that the distance between the busbar clips of adjacent busbar connectors is too close to cause interference with each other during the quick plug-in process, the busbars of the busbar connectors 1, 2, 3, and 4 are clamped to the main The rows (bare busbars) are arranged in a staggered order from front to back on the plane. As shown in Figures 1 and 3, preferably, an "N"-shaped arrangement is adopted, that is, the plane where the bus bar connector 1 and the bus bar connector 3 are located is parallel to the plane where the bus bar connector 2 and the bus bar connector 4 are located, And there is a certain distance between the two planes.

In this embodiment, the selection of the specification parameters of the plug-in device, specifically, according to the size of the output current and the requirements for dynamic and thermal stability, select the appropriate specifications of the lower connecting busbar, the upper connecting busbar and the busbar clamp, and determine the specifications at the same time. The spacing of each busbar connector, and finally determine the size of the box.

Considering the requirements of dynamic and thermal stability, this busbar quick plug-in device is suitable for current access of 630A and below. When the access current is greater than 630A, this scheme needs to be improved. The busbar connector can be connected when the power distribution cabinet is produced. It is fixed with the main busbar (bare busbar) of the power distribution cabinet, that is, the busbar clamp is changed to a fixed type, and the rest of the structure is the same as this scheme, and will not be repeated here.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of the present invention.

Claims (10)

1. A busbar quick plug-in device, characterized in that it comprises a box body, a bracket and a busbar connector; The box body includes front and rear panels, left and right side panels, an upper cover plate and a lower bottom plate; The bracket includes guide rails and insulating beams. One guide rail is installed on the inner side of the left and right side panels along the vertical direction to the front panel. Four insulating beams are arranged on the left and right side panels in the vertical direction. The insulating beams are installed at both ends. On the guide rail, adjust the position of the insulating beam forward and backward through the guide rail; There are four busbar connectors in total, and each busbar connector is respectively fixed on the four insulating beams, and is perpendicular to the direction of the insulating beams; the lower end of each busbar connector is provided with the main busbar in the power distribution cabinet. The plug-in matching busbar clamp is provided with an interface connected to an external power supply cable or a spare busbar at the upper end. 2 . The busbar quick plug-in device according to claim 1 , wherein the specifications of the four busbar connectors are exactly the same. 3 . 3 . The busbar quick plug-in device according to claim 2 , wherein the busbar connector comprises a busbar clamp, a lower section connecting busbar, and an upper section connecting busbar, and the lower section connecting busbar and the upper section connecting busbar are 3 . The rows are connected by bolts. 4 . The busbar quick plug-in device according to claim 3 , wherein the upper end of the lower section connecting busbar and the lower end of the upper section connecting busbar are provided with a plurality of through holes of the same size for penetrating through the busbar. 5 . Bolts; adjust the overall height of each busbar connector through the cooperation between different through holes. 5 . The busbar quick plug-in device according to claim 4 , wherein the through holes are elongated through holes, and the through holes on the same busbar connector are arranged at equal intervals. 6 . 6 . The busbar quick plug-in device according to claim 5 , wherein the lower opening of the busbar clip has elasticity, and the shortest distance between the openings is smaller than the thickness of the main busbar. 7 . 7 . The busbar quick plug-in device according to claim 6 , wherein the busbar clip is an integrally formed copper sheet, and the copper sheet is U-shaped. 8 . 8 . The busbar quick plug-in device according to claim 7 , wherein there are four busbar clips in total, which are staggered from the main busbar plug-in position, and the planes where they are located are connected in an “N” shape in sequence. 9 . The busbar quick plug-in device according to claim 8 , wherein a perforation is formed on the insulating beam; the busbar connector is fixed on the insulating beam by bolts. 10 . 10 . The busbar quick plug connection device according to claim 1 , wherein the outer layer of the busbar clip is provided with an insulating resin layer. 11 .