CN215646040U

CN215646040U - Bus duct with cable branch

Info

Publication number: CN215646040U
Application number: CN202121400551.9U
Authority: CN
Inventors: 袁明; 纪荘; 徐镜添
Original assignee: Guangdong Zhongke Tongshang Intelligent Technology Co ltd
Current assignee: Guangdong Zhongke Tongshang Intelligent Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-01-25
Anticipated expiration: 2031-06-23

Abstract

The utility model belongs to the technical field of bus ducts, and particularly relates to a bus duct with cable branches, which comprises a bus duct shell, wherein a plurality of conductive bars are arranged in the bus duct shell, the middle parts of the conductive bars are electrically connected with fan-shaped connecting sheets, the fan-shaped connecting sheets are electrically connected with wires, the wires are electrically connected with cables, the middle part of the bus duct shell is provided with side openings corresponding to the cables, the side openings are covered with isolation covers, and the cables penetrate through the isolation covers. The bus duct provided by the utility model is provided with the branch cable, and can be directly butted with equipment such as a distribution box and the like without installing a jack box, so that the on-site construction cost is effectively reduced, the operation is stable, the protective performance is stronger, and the bus duct has remarkable practical significance.

Description

Bus duct with cable branch

Technical Field

The utility model relates to the technical field of bus ducts, in particular to a bus duct with cable branches.

Background

With the emergence of modern engineering facilities and equipment, the power consumption of various industries is rapidly increased, and especially in the presence of numerous high-rise buildings and large-scale factory workshops, the traditional cable serving as a power transmission wire cannot meet the requirements in a large-current transmission system.

Plug-in type bus duct produces as a novel distribution wire, compares with traditional cable, fully embodies its superiority when heavy current is carried, and the contact resistance and the temperature rise greatly reduced of bus duct both ends junction and separated time mouth grafting department, and because of having used insulating material in the bus duct to improve the fail safe nature of bus duct, and then made whole power supply system perfect more.

Since the bus duct needs to be installed at a fixed position inside a building, in order to transmit power to different positions on each floor, power transmitted from the bus duct needs to be transferred to a flexible cable on each floor and electrically connected to devices such as a distribution box for branch use. However, when the bus duct is converted into a cable for transmitting current at present, the conversion can be carried out only through a special bus plugging box. Because the bus plugging box adopts a clamping connection mode to butt joint the bus bars, and needs manual field operation and installation, the bus plugging box is easily interfered by factors such as a connection process mode and uncertainty of field environment, the protection grade of the bus bar can be greatly influenced, the phenomena of interface heating, poor contact, electricity jumping, arcing, short circuit, carbon deposition and the like can often occur, and great potential safety hazards are hidden.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that power branches transmitted by a bus duct are connected to cables by adopting bus plugging boxes in the market so as to be distributed to floors, the butting positions of the bus duct and the bus plugging boxes are installed by manual operation, the safety protection level is low, the phenomena of heating, poor contact, electricity jumping, arcing, short circuit, carbon deposition and the like frequently occur at the interface position, and great potential safety hazards are hidden, the bus duct with the cable branches is provided.

The bus duct with the cable branches comprises a bus duct shell, wherein a plurality of conductive bars are arranged in the bus duct shell, the middle parts of the conductive bars are electrically connected with fan-shaped connecting pieces, the fan-shaped connecting pieces are electrically connected with wires, the wires are electrically connected with cables, side openings are formed in the middle parts of the bus duct shell corresponding to the cables, isolation covers cover the side openings, and the cables penetrate through the isolation covers.

Furthermore, a branch lug is arranged in the middle of the conductive bar, the arc edge of the fan-shaped connecting sheet corresponds to the branch lug, and the opposite end of the arc edge of the fan-shaped connecting sheet is connected with a lead.

Further, the fan-shaped connecting sheet, the lead and the inner core conductor of the cable are integrally formed.

Furthermore, the conducting bar, the fan-shaped connecting sheet, the branch lug and the conducting wire are all wrapped with insulating layers.

Furthermore, its shape of branch lug is trapezoidal, and branch lug integrated into one piece is in the side of electrically conductive row, and branch lug all corresponds towards the side opening.

Furthermore, vertical central axes of the fan-shaped connecting pieces on the conducting bars are not overlapped with each other.

Furthermore, the conductive bar and the conducting wire are both made of copper, the conductor of the inner core of the cable is a copper core, and the conductive bar and the conducting wire are connected through brazing.

Furthermore, a ventilation gap is formed in the inner side of the bus duct shell between the side opening and the fan-shaped connecting sheet.

Furthermore, a plurality of radiating ribs are arranged on the bus duct shell at equal intervals.

Further, the isolation cover is made of a high-voltage insulating rubber mat.

The utility model has the advantages that:

1. the branch cable is directly electrically connected with the bus duct, so that equipment such as a bus plugging box does not need to be additionally installed when the bus duct is required to be branched, and the construction and installation efficiency is effectively improved.

2. The branch structure is fixedly arranged on the bus duct, the connection is stable, the safety is high, and bad phenomena such as unstable connection, reduction of bus duct protective performance and the like caused by manual construction at the branch connection position can be effectively avoided.

3. The device has simple structure and low manufacturing cost, can not influence the normal connection and use of the bus duct, and can not lead to the increase of the construction cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a busway with cable branches connecting a multi-conductor cable;

FIG. 2 is a schematic structural diagram of a single cable connected with a bus duct with cable branches;

FIG. 3 is a schematic view of the connection structure of the conductive bar, the branch tab, the fan-shaped connecting piece, the wire and the cable

FIG. 4 is a layout diagram of fan-shaped connection pads on a multi-chip conductive bar;

fig. 5 is a cross-sectional structural view when a multi-core cable is connected to a bus duct having cable branches.

The attached drawings are as follows:

1. a busway housing; 2. a conductive bar; 3. a fan-shaped connecting sheet; 4. a wire; 5. a cable; 6. opening the side; 7. an isolation cover; 8. a branch tab; 9. a ventilation gap; 10. the heat dissipation rib.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "middle", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

As shown in fig. 1 to 5, this embodiment provides a bus duct with cable branches, including bus duct casing 1, arrange in bus duct casing 1 and be provided with the multi-disc and lead electrical drainage 2, the equal electrically connected with fan-shaped connection piece 3 in middle part that leads electrical drainage 2, equal electrically connected with wire 4 on the fan-

shaped connection piece

3, 4 electrically connected with cables 5 in wire, the middle part of bus duct casing 1 corresponds cable 5 and is provided with side opening 6, side opening 6 coats and is stamped cage 7, cable 5 runs through cage 7.

It should be noted that, because the plurality of conductive bars in the bus duct respectively correspond to different electrodes, for example, five electrodes L1, L2, L3, N, PE are provided, and five conductive bars are provided in the bus duct. When the single-core cable 5 design shown in fig. 2 is adopted, each cable 5 can adopt a sheath with different colors, so that workers can distinguish electrodes more intuitively and clearly during wiring, and the probability of wiring errors is reduced.

Wherein, fan-shaped connection piece 3 can effectively increase the area of the tie point between electrically conductive row 2 and the cable 5, reduces the resistance of tie point, guarantees that the electric current of electrically conductive row 2 output can smoothly shunt to cable 5. Because the conducting bar 2 and the branch cable 5 can be directly welded and connected, the circuit connection is stable, the branch connecting cable can be well arranged in the production process of the bus duct, a branch structure does not need to be additionally arranged on the arrangement site of the bus duct, the structure is stable, and the construction time is saved. Because the branch is not required to be installed on site manually, the phenomena of heating, poor contact, flashover, short circuit, carbon deposition and the like at the branch interface are avoided.

The middle part of the conducting bar 2 is provided with a branch lug 8, the arc edge of the fan-shaped connecting sheet 3 corresponds to the branch lug 8, and the opposite end of the arc edge of the fan-shaped connecting sheet 3 is connected with the lead 4. The design of the branch lug 8 facilitates the welding fixation of the fan-shaped connecting sheet 3, and the installation position of the fan-shaped connecting sheet 3 can be effectively positioned so as to distinguish the positions of the fan-shaped connecting sheets 3 on different conductive bars 2.

It should be noted that, if the branch protruding piece 8 is not provided, when the fan-shaped connecting piece 3 is directly welded on the conductive bar 2, as long as the welding position is ensured to be accurate, the material cost can be saved, and the effect of the original structure of the conductive bar 2 is not changed.

The fan-shaped connecting sheet 3, the lead 4 and the inner core conductor of the cable 5 are integrally formed. A section of the outer sheath is cut at the front end of the cable 5 to form the exposed lead 4, and the front end of the lead 4 is flattened to form the fan-shaped connecting sheet 3, so that the area of the connecting point can be effectively increased.

The conductive bar 2, the fan-shaped connecting sheet 3, the branch protruding sheet 8 and the wires 4 are all wrapped with insulating layers (not shown). The insulating layer can effectively isolate the plurality of conductive bars 2 corresponding to different polarities, avoid bad phenomena such as short circuit and the like, and improve the safety of equipment.

The branch protruding pieces 8 are trapezoidal in shape, the branch protruding pieces 8 are integrally formed on the side edges of the conductive bar 2, and the branch protruding pieces 8 are correspondingly towards the side openings 6. The protruding branch protruding pieces 8 can be manufactured in the processing process of the conductive bar 2, and the structural integrity is improved. And the trapezoidal design facilitates the wrapping of the insulation material.

Vertical central axes of the fan-shaped connecting pieces 3 on the conducting bar 2 are not overlapped. The positions of the fan-shaped connecting sheets 3 on different conducting bars 2 are not on the same vertical central axis, and a certain distance is formed between the fan-shaped connecting sheets, so that mutual interference of different polarities can be avoided.

The conducting bar 2 and the conducting wires 4 are made of copper, the inner core conductor of the cable 5 is a copper core, and the conducting bar 2 and the conducting wires 4 are connected through brazing. The conductive bar 2 and the cable 5 are connected by a brazing process, so that the integration degree is high, the resistance of a branch connection point can be effectively reduced, and the running stability of equipment is ensured.

And a ventilation gap 9 is arranged on the inner side of the bus duct shell 1 between the side opening 6 and the fan-shaped connecting sheet 3. A plurality of radiating ribs 10 are arranged on the bus duct shell 1 at equal intervals. The ventilation gap 9 and the heat dissipation ribs 10 can improve the heat dissipation performance of the bus duct and improve the operation stability.

The isolation cover 7 is made of a high-voltage insulating rubber mat. The high-voltage insulating rubber mat can effectively isolate the exposed part of the cable 5 from the inside of the bus duct, and has good protective performance.

During the in-place use, with the bus duct installation back, utilize the bus duct from cable 5 of taking can be with power switching to a plurality of consumer in the distribution box of each floor and then distribute the floor, need not to install additional the generating line jack box on the bus duct and carry out the branch.

The foregoing is a more detailed description of the utility model than is specifically described in connection with the preferred embodiments, and it is not intended to limit the utility model to the particular forms disclosed, since all equivalent variations and modifications as fall within the scope of the appended claims are intended to be embraced therein.

Claims

1. The bus duct with the cable branches comprises a bus duct shell, wherein a plurality of conductive bars are arranged in the bus duct shell, and the bus duct with the cable branches is characterized in that fan-shaped connecting pieces are electrically connected to the middle portions of the conductive bars, wires are electrically connected to the fan-shaped connecting pieces, cables are electrically connected to the wires, side openings are formed in the middle portions of the bus duct shell corresponding to the cables, isolation covers cover the side openings, and the cables penetrate through the isolation covers.

2. The bus duct with the cable branch as claimed in claim 1, wherein a branch lug is arranged in the middle of the conductive bar, the circular arc edge of the fan-shaped connecting sheet corresponds to the branch lug, and the opposite end of the circular arc edge of the fan-shaped connecting sheet is connected with a lead.

3. The bus duct with cable breakout of claim 1, wherein the fan tab, the wire, and the inner core conductor of the cable are integrally formed.

4. The bus duct with cable branching as claimed in claim 2, wherein the conductive bars, fan-shaped connecting sheets, branching tabs and wires are all wrapped with insulating layers.

5. The bus duct with cable branching as claimed in claim 4, wherein the branching lug is trapezoidal in shape, the branching lug is integrally formed on the side of the conductive bar, and the branching lugs are all correspondingly open towards the side.

6. The bus duct with the cable branch as recited in claim 1, wherein vertical central axes of the fan-shaped connecting pieces on the conductive row are not overlapped.

7. The bus duct with the cable branch as claimed in claim 1 or 3, wherein the conductive bar and the conducting wire are both made of copper, the conductor of the inner core of the cable is a copper core, and the conductive bar and the conducting wire are connected through brazing.

8. The bus duct with cable breakout of claim 1, wherein a vent gap is provided inside the bus duct housing between the side opening and the fan tab.

9. The bus duct with cable branching as set forth in claim 1, wherein a plurality of heat dissipation ribs are arranged equidistantly on said bus duct housing.

10. The bus duct with cable breakout of claim 1, wherein the shield is made of a high voltage insulating rubber mat.