CN110429403A - A kind of scalable bus connecting device - Google Patents

Abstract

The invention discloses a scalable bus connection device, which belongs to the technical field of electric power facilities. Symmetrically arranged and there are gaps between each other; the first bus conductor and the second bus conductor are provided with open slots extending along the axis direction, and the first conductive core is provided in the open slots; the two ends of the connecting plate are respectively provided with The connecting piece at one end fixedly connects the connecting plate, the first conductive core and the first busbar conductor together; the connecting piece at the other end fixedly connects the connecting plate and the first conductive core together. The telescopic busbar connection device of the example of the present invention can be adjusted adaptively according to the thermal expansion and contraction of the busbar at the connection point, which ensures the conductive effect and avoids the damage of the busbar conductors.

Description

A retractable bus connection device

technical field

The invention relates to the technical field of power facilities, in particular to a scalable bus connection device.

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. Not only is the cost high, but the conduction and heat dissipation performance is poor. The parallel use of multiple cables brings a lot of inconvenience to the on-site installation and construction connection. In this case, the plug-in busbar conductor emerges as a new type of power distribution conductor.

Bus conductors are generally made into sections of standard length, and they are laid in sequence when they are used. At the junction of two adjacent sections of bus conductors, bus joints will be set and the bus conductors and joints will be fixedly connected together, but the bus conductors as a whole The working environment will have a large temperature difference with the seasons, so the busbar conductors will expand with heat and contract with cold. The traditional fixed connection method cannot make adaptive adjustments when the busbar conductors expand with heat and contract with cold, which will easily lead to busbar conductors. Damage, affecting the conductive effect and shortening the service life of the bus conductor.

Later, in order to avoid damage to the busbar caused by thermal expansion and contraction or affect the conductive effect, the solution generally adopted in the industry is to install a flexible conductive connector at the junction of the two sections of busbar conductors, using the deformable characteristics of the flexible structure to achieve Under the premise of normal conduction, the length change caused by the thermal expansion and contraction of the bus conductor is adaptively adjusted. At present, the most commonly used flexible conductive connectors are copper braids. Copper braids are not only complicated in processing technology and high in cost, but also the connection operation between the flexible structure and the rigid structure is relatively complicated, and the flexible structure still has drooping during use. Phenomenon, there are great hidden dangers in terms of reliability and safety.

Although the rigid structure is easier to operate during installation and has better safety, due to the non-deformable characteristics of the rigid structure, there has been no research on the use of a rigid structure in the length adjustment of the busbar joint.

Contents of the invention

In order to solve the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a telescopic bus connection device, which can be adjusted according to the thermal expansion and contraction of the bus to ensure the conductive effect and prevent the bus conductor from being damaged. damage, and adopts a rigid telescopic structure, which is very convenient for processing and installation.

The technical scheme that the present invention solves its technical problem adopts is:

Provided is a retractable busbar connection device, comprising a first busbar conductor and a second busbar conductor, the first busbar conductor and the second busbar conductor are butted, and a connecting plate is provided at the butt joint of the first busbar conductor and the second busbar conductor , the connecting plates are symmetrically arranged and there are gaps between them; the first bus conductor and the second bus conductor are provided with open slots extending along their axis directions, and the first conductive cores are arranged in the open slots and the first wires The core is matched with the opening grooves of the first bus conductor and the second bus conductor at the same time; the two ends of the connecting plate are respectively provided with connecting pieces, and the connecting piece at one end connects the connecting plate, the first conductive core and the first bus conductor fixedly connected together; the connector at the other end fixedly connects the connecting plate and the first conductive core together.

Further, the connecting piece is a top wire, the end of the top wire is provided with a fastening nut, and a spring is provided under the fastening nut of the top wire on the side of the second bus conductor, and the spring is sleeved on the outside of the top wire .

Further, the opening slots of the first bus conductor and the second bus conductor are also provided with a second conductive core, the second conductive core and the first conductive core are respectively located in different open slots, and the second The conductive core is matched with the opening grooves of the first bus conductor and the second bus conductor at the same time, and the second conductive core is fixedly connected with the second bus conductor.

Further, one end of the connecting plate corresponding to the conductor of the second bus bar is equipped with a limiting plate, and the limiting plate is arranged on one side of the connecting plate or symmetrically arranged on both sides of the connecting plate, and the limiting plate will form a group of symmetrically arranged The connecting plates are connected, and the side of the limiting plate close to the first bus conductor or the two sides of the limiting plate are provided with limiting posts, and the limiting posts protrude from the surface of the second conductive core.

Further, the second conductive core is connected to the second busbar conductor through a top wire, and the end of the top wire protrudes from the surface of the second conductive core to form the limiting post.

Further, the mounting hole at the connection between the limiting plate and the connecting plate is an oblong hole.

Further, open slots are respectively provided above, below, left and right of the first bus conductor and the second bus conductor, the first conductive core is located in the upper and lower open slots, and the second The conductive cores are located in open slots on the left and right.

Further, the cross sections of the first bus conductor and the second bus conductor are rectangular, the open slot is a dovetail slot, and the width of the gap between the opposite connecting plates is not smaller than the opening width of the open slot.

Further, the central parts of the first bus conductor and the second bus conductor are provided with a central hole extending along the axial direction thereof.

Further, a groove is provided on the outside of the connecting plate at a position corresponding to the limiting plate, and the limiting plate sinks into the groove.

Compared with prior art, the beneficial effect of the present invention is:

1. The telescopic bus connection device of the example of the present invention realizes the adjustment of the joints of the bus conductor through the relative movement between the rigid conductive core and the bus conductor, which breaks the traditional idea of relying on the deformation of the flexible structure for length adjustment in the industry. Flexible adjustment, rigid conductive core is easier to process and install. Compared with copper braid, it reduces the cost and installation difficulty. The rigid structure will not sag, and the reliability and safety of use are better. At the same time, the setting of the conductive core ensures The conductor joints of the bus bar have good electrical conductivity.

2. In the telescopic bus connection device of the example of the present invention, relative movement can occur between the second bus conductor and the first conductive core, and at the same time, the first bus conductor also moves relative to the second conductive core. When the bus conductor produces When thermal expansion and cold contraction, there is a certain amount of activity margin to avoid damage to the bus conductors, ensuring the conductive effect and the service life of the bus conductors; at the same time, the open slots of the bus conductors are provided with conductive cores, and the butt joints of the bus conductors There is a connection plate at the place, which increases the conductivity and improves the conductivity.

3. In the example of the telescopic bus connection device of the present invention, the connector adopts a top wire, which can easily adjust the depth of the jacking, has strong operability, and is easy to install. The top wire is provided with a fastening nut to increase the reliability of the connection , A spring is set on the top wire at the second bus conductor, and under the action of the spring, the compression degree of the connecting plate to the second bus conductor is automatically adjusted to facilitate the movement of the bus conductor with thermal expansion and contraction, ensuring performance reliability.

4. In the telescopic bus connection device of the present invention, the conductive core includes a first conductive core and a second conductive core, the conductive core cooperates with the first bus conductor and the second bus conductor at the same time, and the first bus conductor and the second A conductive core is fixedly connected, and the second bus conductor is fixedly connected to the second conductive core. Cooperating with other connecting plates, top wires and other components, the connection between the first bus conductor and the second bus conductor is reliable, ensuring its working performance reliability.

5. The retractable busbar connecting device of the example of the present invention is provided with a limit plate to limit the movement range of the second busbar conductor, avoiding accidents such as the second busbar conductor falling out of the connecting plate due to excessive movement, and further increasing Reliability; the limit column is formed by jacking screws, the structure is very simple, and the assembly is convenient.

6. In the telescopic bus connection device of the example of the present invention, the installation hole at the connection between the limiting plate and the connecting plate is an oblong hole, and there is a certain margin of relative movement between the limiting plate and the connecting plate, so that the connecting plate The pressing force is adjusted by the spring, so as to prevent the installation of the limit plate from interfering with the matching relationship between the connecting plate and the conductor of the second bus bar.

7. In the telescopic bus bar connecting device of the example of the present invention, open slots are respectively provided on the upper, lower, left and right sides of the bus bar conductors, the first conductive core is located in the upper and lower open slots, and the second conductive core is located in the upper and lower open slots. The open slots on the left and right sides make the mechanical balance of the bus conductors good and facilitate the erection of the bus conductors.

8. In the telescopic bus connection device of the example of the present invention, the cross section of the bus conductor is rectangular, and the opening groove is a dovetail groove, which is convenient for installation; the width of the gap between the connecting plates is not less than the opening width of the opening groove, which is convenient for connecting pieces such as jacking wires. installation; the central part of the bus conductor is provided with a central hole extending along its axis direction, which saves consumables and reduces weight under the premise of ensuring electrical conductivity.

9. In the telescopic bus connection device of the example of the present invention, the limiting plate is sunk into the groove on the connecting plate, which reduces the setting height of the limiting column, saves cost, and is more practical.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is the three-dimensional structure schematic diagram of the embodiment of the present invention;

Fig. 2 is a schematic plan view of an embodiment of the present invention;

Fig. 3 is the A-A sectional schematic diagram of Fig. 2;

FIG. 4 is a schematic diagram of the B-B section in FIG. 2 .

In the figure: 1 first bus conductor, 2 second bus conductor, 3 connecting plate, 4 top wire, 5 spring, 6 second conductive core, 7 limiting column, 8 limiting plate, 9 opening slot, 10 fastening Nut, 11 first conductive core, 12 central hole.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them.

The components of the embodiments of the invention generally described and shown in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

As shown in Figure 1 and Figure 2, an embodiment of the present invention provides a retractable busbar connection device, including a first busbar conductor 1 and a second busbar conductor 2, and the first busbar conductor 1 and the second busbar conductor 2 are butted , the butt joint of the first bus conductor 1 and the second bus conductor 2 is provided with a connecting plate 3, and the connecting plates 3 are symmetrically arranged and there are gaps between them; both the first bus conductor 1 and the second bus conductor 2 An open slot 9 extending along its axial direction is provided, and a first conductive core 11 is arranged in the open slot 9, and the first wire core 11 is matched with the open slots 9 of the first bus conductor 1 and the second bus conductor 2 at the same time ; The two ends of the connection plate 3 are respectively provided with connectors, as shown in Figure 3, the connector at one end passes through the opening groove on the connection plate 3, the first busbar conductor 1 and the first conductive core 11 and pushes into it The central part of the first bus conductor 1 is fixedly connected together with the connecting plate 3, the first conductive core 11 and the first bus conductor 1; as shown in Figure 4, the connector at the other end passes through the connecting plate 3 and the first connecting plate. The opening slot on the bus conductor 1 is pushed into the first conductive core 11 to fix the connecting plate 3 and the first conductive core 11 together.

In this embodiment, the connector is a top wire 4, which can easily adjust the depth of jacking. The end of the top wire 4 is provided with a fastening nut 10. A spring 5 is arranged under the fastening nut of 4, and the spring 5 is sleeved on the outside of the top wire.

The opening slots 9 of the first bus conductor 1 and the second bus conductor 2 are also provided with a second conductive core 6, and the second conductive core 6 and the first conductive core 11 are respectively located in different opening slots 9, The second conductive core 6 is matched with the opening slots 9 of the first bus conductor 1 and the second bus conductor 2 at the same time, and the second conductive core 6 is fixedly connected with the second bus conductor 2 .

One end of the connecting plate 3 corresponding to the second busbar conductor 2 is equipped with a limiting plate 8, the limiting plate 8 is arranged on one side of the connecting plate 3 or symmetrically arranged on both sides of the connecting plate 3, and the limiting plate 8 will be arranged symmetrically. A group of connection plates are connected, and the limit plate 8 is provided with a limit post 7 on the side of the first bus conductor 1 or on both sides of the limit plate 8, and the limit post 7 protrudes from the second conductive core 6. On the surface.

In this embodiment, in order to enhance the balance and the reliability of use, the limiting plate 8 is symmetrically arranged on both sides of the connecting plate 3, and the limiting columns 7 are arranged on both sides of the limiting plate 8, and the limiting plate 8 Limiting columns 7 are set on both sides of the rim, which realizes the limiting in two directions.

The second conductive core 6 is connected with the second bus conductor 2 by a top wire, as shown in Figure 4, the top wire passes through the connecting plate 3, the opening groove on the second bus conductor 2 and the second conductive core 6 After pushing into the central part of the second bus conductor 2, the connecting plate 3, the second conductive core 6 and the second bus conductor 2 are fixedly connected together, and the end of the top wire protrudes from the surface of the second conductive core 6 to form a Describe limit column 7.

The mounting hole at the joint between the limiting plate 8 and the connecting plate 3 is an oblong hole. The oblong hole makes there is a certain margin of relative movement between the limiting plate 8 and the connecting plate 3, so that the pressing force of the connecting plate 3 is adjusted by the spring 5, and the installation of the limiting plate 8 is avoided. The matching relationship between the two busbar conductors 2 causes interference.

The upper, lower, left and right sides of the first bus conductor 1 and the second bus conductor 2 are respectively provided with open slots 9, the first conductive core 11 is located in the upper and lower open slots 9, the second The conductive cores 6 are located in the open slots 9 on the left and right.

The cross sections of the first bus conductor 1 and the second bus conductor 2 are rectangular, the opening slot 9 is a dovetail slot, and the width of the gap between the opposite connecting plates 3 is not smaller than the opening width of the opening slot 9 . Generally, it can be set that the width of the gap between the connecting plates 3 is consistent with the opening width of the opening groove 9 .

Central parts of the first bus conductor 1 and the second bus conductor 2 are provided with a central hole 12 extending along the axial direction thereof.

A groove is provided on the outside of the connecting plate 3 at a position corresponding to the limiting plate 8, and the limiting plate 8 is sunk into the groove. During specific processing, it is enough to mill out a groove compatible with the limiting plate 8 on the outside of the connecting plate 3, and the limiting plate 8 sinks in the groove on the connecting plate 3, reducing the setting height of the limiting column 7, The length requirement of the required top wire is reduced, the cost is saved, and the implementability is stronger.

For ease of understanding of the present invention, it is further described below in conjunction with its method of use:

When the bus conductor expands with heat and contracts with cold, as shown in FIG. 4, since the first conductive core 11 and the second bus conductor 2 are not fixed together, there will be a Relative movement occurs, and at the same time, the second conductive core 6 and the first bus conductor 1 are not fixed together, so there will also be relative movement between the second conductive core 6 and the first bus conductor 1, and the first bus conductor 1 The joint with the second busbar conductor 2 can be adaptively adjusted according to thermal expansion and contraction. Simultaneously, because the second conductive core body 6 and the second bus bar conductor 2 are fixedly connected together, when the second bus bar conductor 2 moves, it will drive the second conductive core body 6 to move together. When moving to the maximum position, the limit The column 7 touches the limit plate 8 to prevent it from moving further, so as to avoid the unexpected situation that the second busbar conductor 2 comes out of the connecting plate 3 .

In addition, the setting of the limiting column 7 can also measure the expansion with the limiting column 7 as a reference point, which is convenient for the staff to accurately understand the heat and cold contraction of the busbar conductors.

A conductive core is arranged in the open slot 9 of the bus conductor, and a connecting plate 3 is arranged at the butt joint of the bus conductor. Both the conductive core and the connecting plate 3 are composed of conductors, which increases the conductivity. The conductive effect can still be guaranteed when moving.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but should also cover the technical solution formed by the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Except for the technical features described in the specification, the rest of the technical features are known to those skilled in the art. In order to highlight the innovative features of the present invention, the rest of the technical features will not be repeated here.

Claims (10)

1. a kind of scalable bus connecting device, including the first bus-bars conductor and the second bus-bars conductor, the first bus-bars conductor and The docking of two bus-bars conductors, which is characterized in that it is provided with connecting plate at the docking of first bus-bars conductor and the second bus-bars conductor, The connecting plate is arranged symmetrically and there is gap between each other；It is provided on first bus-bars conductor and the second bus-bars conductor along it The open slot that axis direction extends is provided with the first conductive core in open slot and the first conducting wire core while leading with the first bus The open slot of body and the second bus-bars conductor matches；The both ends of the connecting plate are respectively arranged with connector, the connector of one end Connecting plate, the first conductive core and the first bus-bars conductor are fixed together；The connector of the other end is by connecting plate and One conductive core is fixed together.

2. scalable bus connecting device according to claim 1, which is characterized in that the connector is jackscrew, jackscrew End be provided with fastening nut, positioned at the second bus-bars conductor side jackscrew fastening nut below be provided with spring, it is described Spring is nested in the outside of jackscrew.

3. scalable bus connecting device according to claim 1 or 2, which is characterized in that first bus-bars conductor and The second conductive core, second conductive core and the first conductive core difference are additionally provided in the open slot of second bus-bars conductor In different open slots, the second conductive core matches with the open slot of the first bus-bars conductor and the second bus-bars conductor simultaneously It closes, is fixedly connected between the second conductive core and the second bus-bars conductor.

4. scalable bus connecting device according to claim 3, which is characterized in that corresponding second bus of the connecting plate One end of conductor is equipped with limit plate, and the limit plate is arranged in the side of connecting plate or is arranged symmetrically in the two of connecting plate Side, limit plate connect be arranged symmetrically one group of connecting plate, side or limit of the limit plate close to the first bus-bars conductor The two sides of plate are provided with limited post, and the limited post protrusion is on the surface of the second conductive core.

5. scalable bus connecting device according to claim 4, which is characterized in that second conductive core and second It is attached between bus-bars conductor by jackscrew, jackscrew end protrusion forms the limited post on the surface of the second conductive core.

6. scalable bus connecting device according to claim 4, which is characterized in that the limit plate is connect with connecting plate The mounting hole at place is slotted hole.

7. scalable bus connecting device according to claim 4, which is characterized in that first bus-bars conductor and second The top of bus-bars conductor, lower section, left and right side are respectively arranged with open slot, and first conductive core is located above and lower section Open slot in, second conductive core is located in the open slot of left and right side.

8. scalable bus connecting device according to claim 7, which is characterized in that first bus-bars conductor and second The rectangular in cross-section of bus-bars conductor, the open slot are dovetail groove, the width in the gap between the connecting plate being oppositely arranged Not less than the opening width of the open slot.

9. scalable bus connecting device according to claim 7, which is characterized in that first bus-bars conductor and second The centre of bus-bars conductor is provided with the centre bore extended along its axis direction.

10. scalable bus connecting device according to claim 4, which is characterized in that on the outside of the connecting plate and limit The corresponding position setting of plate is fluted, and the limit plate is fallen into the groove.