CN205355733U - Bus -bar system jack box - Google Patents

Abstract

In order to overcome the problems of fixed installation position and inflexible use of the busbar system plug-in box in the prior art, the utility model provides a busbar system plug-in box, including a box body, a plug-in board, a slider, a transmission component, and a connecting terminal and a plurality of terminal posts; the plug board is fixed on the top of the box body; a plurality of terminal posts are arranged in the plug board, and each terminal post is equipped with a connecting terminal; one end of the connecting terminal is installed on the terminal post, and the other One end is formed with a bent portion extending toward the terminal, and the outer surface of the bent portion is a plane; the transmission assembly is arranged in the box and can drive the connecting terminal to rotate around the terminal; the slider is located outside the box, and It is connected with the transmission assembly to drive the connection terminal to rotate through the transmission assembly. The busbar system plug-in box provided by the utility model can be conveniently installed at any position on the busbar system, is convenient and flexible to use, and can realize hot plugging and unplugging. At the same time, when the plug-in box is used for electric energy distribution, the resistance is small and the loss is low.

Description

A plug-in box for a busbar system

technical field

The utility model relates to a plug-in box of a busbar system.

Background technique

With the emergence of modern engineering facilities and equipment, the power consumption of all walks of life is increasing rapidly, especially the emergence of many high-rise buildings and large workshops. The traditional cables used as power transmission wires can no longer meet the requirements in large current transmission systems. The parallel use of multiple cables brings a lot of inconvenience to the site installation and construction connection.

In the face of huge loads requiring hundreds of thousands of amperes of strong current, it is necessary to choose safe and reliable conduction equipment. The busway is a power distribution device for efficient current transmission, especially to meet the needs of economical and reasonable wiring of increasingly taller buildings and large-scale factories.

The traditional bus duct is a bus system composed of metal plates (steel plates or aluminum plates) as protective shells, conductive bars, insulating materials and related accessories. The existing busway adopts a closed busway, which completes the power supply and distribution work for the terminal electrical equipment through a fixed distance and a fixed output interface on the straight section of the closed busway. when needed

As a functional unit of the busbar system, the plug-in box plays the role of distributing electric energy in the busbar system. The traditional busbar system plug-in box connection usually uses the busway custom branching method, the installation position is fixed, the use is not flexible, and the on-site construction is not convenient enough.

Utility model content

The technical problem to be solved by the utility model is to provide a busbar system plug-in box for the problems of fixed installation position and inflexible use of the busbar system plug-in box in the prior art.

The technical solution adopted by the utility model to solve the problems of the technologies described above is as follows:

A plug-in box for a busbar system is provided, including a box body, a plug-in board, a slider, a transmission assembly, connecting terminals and a plurality of terminal posts; the plug-in board is fixed on the top of the box body; the plurality of terminal posts are arranged on In the plug-in board, and a connection terminal is installed on each terminal; one end of the connection terminal is installed on the terminal, and the other end is formed with a bent portion extending toward the terminal, and the bending The outer surface of the upper part is a plane; the transmission assembly is arranged in the box, and can drive the connecting terminal to rotate around the terminal; the slider is located outside the box, and is connected with the transmission assembly , so as to drive the connecting terminal to rotate through the transmission assembly.

The busbar system plug-in box provided by the utility model can be plugged in any position of the busbar guide rail, and is flexible to use. After the plug-in board is inserted into the bus guide rail, the plug-in box and the bus guide rail are not in conduction, and the conduction is realized after the sliding block is used to push the rotating column to make the connecting terminal contact the bus guide rail. It is safe to use and can realize thermal Plug and unplug.

The important thing is that the part where the connection terminal contacts the bus rail is bent to form a bent part, and the outer surface of the bent part used to contact the bus rail is flat, which can expand the contact area and help reduce the contact resistance.

Further, the transmission assembly includes a toggle column and a rotation column; the rotation column is parallel to the terminal and is rotatably arranged on the plug board, and the bottom end of the rotation column is located in the box; There is a bump opposite to the connecting terminal, and the bump can push the connecting terminal to swing with the rotation of the rotating column; the toggle column is located in the box, and one end of the toggle column is installed on the bottom side wall of the rotating column and the other end is connected to the slider.

Further, four terminals are arranged in parallel on the socket board; there are two rotating columns, and the two rotating columns are located between the four terminals, and each rotating column has two terminals on both sides. There are two lugs on each rotating post, and the two bumps on each rotating post are respectively opposite to the connecting terminals on the adjacent terminal, so that the rotation of the rotating post can pass through the two bumps Drive the two opposite connecting terminals to expand or retract synchronously; each rotating column is equipped with a toggle column; the transmission assembly also includes a connecting block that is located in the box and can slide horizontally; the two toggle columns are far away from the rotating column The ends of both are connected to the connecting block, so that the two toggle columns can rotate synchronously under the drive of the connecting block; the connecting block is fixedly connected with the sliding block.

Further, a horizontally arranged chute is provided on the side wall of the box; the slider is fixedly connected to the connecting block through the chute, and can drive the connecting block to slide along the chute.

Further, the four connecting terminals respectively located on the four binding posts are distributed in a rectangular shape.

Further, the four connecting terminals are distributed on both sides of the plugboard, and the two connecting terminals on the diagonal are located on the same side of the plugboard.

Further, the two connection terminals on the two binding posts on both sides of the rotating column are respectively located on two sides of the plug board.

Further, the connection terminal includes a root fixed on the terminal, an extension extending from the root in a direction away from the terminal, and a bent portion bent outward from the extension and extending toward the terminal; The extension part is bent inwardly relative to the root part.

The extension part of the upper connecting terminal is bent outward relative to the root part, which is beneficial to better make the bending part contact and conduct with the bus bar guide rail, and at the same time, this structure is beneficial to provide greater and more durable pressure.

Further, the end of the toggle column is connected to the connecting block through a cam mechanism.

Through the above-mentioned structure, when the connection terminal and the bus bar guide rail are conducted, the two are connected more closely, which is beneficial to reduce the contact resistance.

Further, a circuit breaker is also arranged in the box, and the circuit breaker is electrically connected to the terminal.

Description of drawings

Fig. 1 is an exploded view of the busbar system plug-in box provided by the preferred embodiment of the present invention;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a perspective view of the busbar system plug-in box provided by the preferred embodiment of the present invention;

Fig. 4 is a schematic view of the use state of the plug-in box of the busbar system provided by the preferred embodiment of the present invention.

The reference signs in the accompanying drawings of the description are as follows:

1. Housing; 2. Side cover; 3. Top cover; 4. Plug board; 5. Slider; 6. Connecting block; 7. Toggle post; 8. Rotation post; 9. Terminal post; 10. Connection Terminal; 11, chute; 12, circuit breaker; 13, installation through hole; 14, bus guide rail; 101, root; 102, extension; 103, bending part.

detailed description

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Any device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or an optional connection. Disassembled connection, or integral connection; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Figures 1-3 show the specific structure of the busbar system plug box provided by the preferred embodiment of the present invention.

Referring to Fig. 1 , the plug-in box of the busbar system includes a box in the shape of a cuboid, which includes a housing 1 constituting the main part of the box, a top cover 3 that closes the top of the housing 1, and a side that is arranged on the side of the housing 1. Cover 2. Wherein, the edge of the top cover 3 extends downward to the side of the box to form a partial side wall of the box. The downwardly extending part of the top cover 3 together with the side cover 2 forms a side wall of the box body.

The top of the top cover 3 has a through hole for the socket board 4 to pass through. A slide groove 11 is provided along the horizontal direction on the part of the top cover 3 extending downwards located on the side of the box body.

The side cover 2 has an installation through hole 13 .

The socket board 4 passes through the through hole of the top cover 3 and is fixed on the top of the box body. The bottom of the socket board 4 is located in the casing.

Four terminal posts 9 are arranged in parallel on the plug board 4 along the vertical direction, and the terminal posts 9 are embedded in the plug board 4 .

A connection terminal 10 is installed on each terminal post 9 .

The specific structure of the connection terminal 10 is shown in Figure 2. The connection terminal 10 includes a root 101 fixed on the terminal 9, an extension 102 extending from the root 101 away from the terminal 9, and an outward bend from the extension 102. The bent portion 103 extending toward the terminal post 9 after being folded; the extending portion 102 is bent inwardly relative to the root portion 101 .

The extension part 102 bent inward relative to the root part 101 is beneficial to enlarge the contact area between the bent part 103 and the bus bar guide rail 14 , thereby reducing the contact resistance. At the same time, it is also beneficial to provide a more durable and tighter pressure, so that the bending portion 103 is in better contact with the bus bar guide rail 14, and the use stability is improved.

The bent portion 103 is bent outward from the extension portion 102 and then extends toward the terminal 9, and the outer surface of the bent portion 103 used to contact the bus bar guide rail 14 is a plane, which is more conducive to expanding the contact with the bus bar guide rail 14 area, thereby reducing the contact resistance.

Referring back to FIG. 1 , in this preferred embodiment, the four connecting terminals 10 are installed on the four terminals 9 respectively, and can swing synchronously with the rotation of the rotating column 8 in the horizontal plane.

Four connection terminals 10 are distributed in a rectangular shape on the plug board 4, and the connection terminals 10 on the two adjacent binding posts 9 are respectively located on both sides of the plug board 4, and the two connection terminals 10 on the diagonal line are located on the The same side of the socket board 4.

Inside the box, two independent rotating columns 8 that can rotate horizontally are arranged on the plug board 4, and the rotating columns 8 are arranged in parallel with the terminal posts 9, and the two rotating columns 8 are respectively located between the four terminal posts 9, each Both sides of the rotating column 8 have the above-mentioned terminal posts 9 . Specifically, a terminal post 9 , a rotating post 8 , a terminal post 9 , a terminal post 9 , a rotating post 8 and a terminal post 9 are sequentially arranged on the plug board 4 . All are fixed with two projections on each rotation column 8, and two projections are arranged up and down, and the two projections on each rotation column 8 are respectively connected with the connecting terminals on the two binding posts 9 on both sides of the rotation column 8. 10, when the rotation column 8 rotates, it drives the protrusion to rotate synchronously, and the rotation of the protrusion can lift up or recover the connecting terminal 10 opposite to it, so as to realize the unfolding or retracting of the connecting terminal 10.

The bottom ends of the two rotating columns 8 are all located in the casing. The bottom ends of the rotating columns 8 are equipped with a toggle column 7 . The ends of the two toggle columns 7 away from the rotating column 8 are connected to the connecting block 6 through a cam mechanism. The connecting block 6 is strip-shaped. The connecting block 6 is arranged in the box and is opposite to the sliding groove 11 . Through the above-mentioned cam mechanism, the connection block 6 can drive the rotation column 8 to rotate through the toggle column 7, and since the radius of the cam rotation is variable, through the action of the cam mechanism, the bump on the rotation column 8 can be connected to the terminal When 10 is ejected, pressure is continuously applied to the connecting terminal 10 to keep the tight contact state between the connecting terminal 10 and the bus bar guide rail 14 .

Referring to Fig. 3, the slider 5 is located outside the box. The sliding block 5 is fixedly connected to the connecting block 6 through the sliding groove 11 through a conventional structure such as a screw rod.

Continuing to refer to FIG. 1 , a circuit breaker 12 is also provided in the box for controlling the on-off of the circuit drawn out through the plug box. Those skilled in the art know that the above four connection terminals 10 are electrically connected to the circuit breaker 12 through the terminal post 9 and the cable, and the circuit breaker 12 leads out the electric energy through the cable.

Referring to FIG. 3 , the circuit breaker 12 is arranged in the box, and the switch for controlling the on-off of the circuit breaker 12 is located outside the box through the installation on the side cover 2 so as to control the circuit breaker 12 .

The use process of the busbar system plug-in box provided by the utility model will be described in detail below in conjunction with FIG. 4 .

When in use, the plug board 4 of the plug box is inserted between the bus rails, so that the connection terminals 10 on the plug board 4 and the bus guide rails 14 are at the same height. At this time, there is no conduction between the plug box and the bus guide rail 14 .

Push the slider 5 horizontally so that the slider 5 slides along the chute 11, and the slider 5 drives the four connection terminals 10 to rotate around the axis of the terminal 9 through the two toggle columns 7, so that the connection terminals 10 swing outward and unfold. The outer surface of the bent portion 103 of the connection terminal 10 is in close contact with the bus bar guide rail 14 to realize conduction.

Since the toggle column 7 is connected to the connection block 6 through the cam mechanism, it can effectively prevent the rotation of the rotating column 8 and cause the connection terminal 10 to be separated from the bus guide rail 14, which is beneficial to realize continuous and stable contact conduction between the connection terminal 10 and the bus guide rail 14.

When the plug-in box needs to be removed, the slider 5 can be pushed back horizontally first, and the connecting terminal 10 is driven to swing inward by the toggle column 7 and the rotating column 8 to retract, so that the connecting terminal 10 is separated from the bus guide rail 14 to realize disconnection . Then directly plug-in box is pulled out, and plug-in plate 4 is disengaged from 14 pieces of bus guide rails and gets final product.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A busbar system plug-in box, characterized in that it comprises a box body, a plug-in board (4), a slide block (5), a transmission assembly, a connection terminal (10) and a plurality of terminal posts (9); The plug-in board (4) is fixed on the top of the box; The plurality of terminal posts (9) are arranged in the plug board (4), and each terminal post (9) is equipped with a connection terminal (10); One end of the connection terminal (10) is installed on the terminal (9), and the other end is formed with a bent portion (103) extending toward the terminal (9), and the bent portion (103) the outer surface is flat; The transmission assembly is arranged in the box, and can drive the connecting terminal (10) to rotate around the terminal (9); The slider (5) is located outside the box and connected to the transmission assembly to drive the connection terminal (10) to rotate through the transmission assembly. 2. The busbar system plug-in box according to claim 1, characterized in that, the transmission assembly includes a toggle column (7) and a rotating column (8); The rotating post (8) is parallel to the terminal post (9) and is rotatably arranged on the plug board (4), the bottom end of the rotating post (8) is located in the box; It has a bump opposite to the connection terminal (10), and the bump can push the connection terminal (10) to swing as the rotation column (8) rotates; The toggling column (7) is located in the box, and one end of the toggling column (7) is installed on the bottom side wall of the rotating column (8), and the other end is connected to the slide block (5). 3. The busbar system plug-in box according to claim 2, characterized in that 4 said terminal posts (9) are arranged in parallel on said plug-in board (4); There are two rotating columns (8), and the two rotating columns (8) are located between 4 terminal posts (9), and each rotating column (8) has the terminal posts (9) on both sides; There are two said projections on each rotating column (8), and the two projections on each rotating column (8) are respectively opposite to the connecting terminals (10) on the adjacent terminal (9), so that the rotating column The rotation of (8) can drive the two opposite connecting terminals (10) to be deployed or retracted synchronously through the two protrusions; A toggle column (7) is installed on each rotating column (8); The transmission assembly also includes a connecting block (6) which is located in the box and can slide horizontally; the ends of the two toggle columns (7) away from the rotating column (8) are connected to the connecting block (6), So that the two toggle columns (7) can rotate synchronously under the drive of the connecting block (6); The connecting block (6) is fixedly connected with the sliding block (5). 4. The busbar system plug-in box according to claim 3, characterized in that, a horizontally arranged chute (11) is provided on the side wall of the box body; The slider (5) passes through the chute (11) and is fixedly connected with the connection block (6), and can drive the connection block (6) to slide along the chute (11). 5. The busbar system plug-in box according to claim 3, characterized in that the four connecting terminals (10) respectively located on the four terminal posts (9) are distributed in a rectangular shape. 6. The busbar system plug-in box according to claim 5, characterized in that, the four connecting terminals (10) are distributed on both sides of the plug-in board (4), and are located on the 2 sides of the diagonal line The two connection terminals (10) are located on the same side of the plug board (4). 7. The busbar system plug-in box according to claim 6, characterized in that, the two connection terminals (10) on the two binding posts (9) on both sides of the rotating column (8) are respectively located on the plug-in board (4 ) on both sides. 8. The busbar system plug-in box according to any one of claims 1-7, characterized in that, the connection terminal (10) includes a root (101) fixed on the terminal (9), from which An extension part (102) of the root part (101) extending away from the terminal post (9) and a bent part (103) extending outward from the extension part (102) and then extending toward the terminal post (9); The extension part (102) is bent inwardly relative to the root part (101). 9. The busbar system plug-in box according to any one of claims 3-7, characterized in that, the end of the toggle column (7) is connected to the connection block (6) through a cam mechanism. 10. The busbar system plug-in box according to any one of claims 1-7, characterized in that, a circuit breaker (12) is also arranged in the box, and the circuit breaker (12) is electrically connected to the Terminal post (9).