CN214479430U

CN214479430U - Symmetrical comprehensive heat dissipation intensive bus duct

Info

Publication number: CN214479430U
Application number: CN202120345535.8U
Authority: CN
Inventors: 吴大华; 黄宏斌
Original assignee: Qingdao Dongshan Bus Intelligent Manufacturing Co ltd
Current assignee: Qingdao Dongshan Bus Intelligent Manufacturing Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-10-22
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to a power transmission equipment field specifically is a intensive bus duct of heat dissipation is synthesized to symmetry formula, and it includes casing, conductor, and the casing surrounds the enclosed construction who forms to have an inner space by two apron and two curb plates, and the parallel interval of conductor sets up in the casing, and runs through the casing, still includes two and uses the casing central line to set up the PE piece between the conductor as symmetry axis symmetry, and the PE piece is outside buckling and stretching out the casing in the ascending both ends of casing direction of height. The utility model has the advantages that: by the aid of the symmetrically arranged PE sheets, the temperature rise of the bus in operation can be effectively reduced by utilizing good heat-conducting property of aluminum, and the current-carrying capacity of the bus duct is improved; the PE sheets are arranged in the shell to form a pull rod structure, so that the structural wall of the bus duct is further strengthened, and the stability and the safety of the bus duct are improved; the utility model discloses the structure principle is simple, can be according to actual conditions nimble selection scheme to installation method is simple.

Description

Symmetrical comprehensive heat dissipation intensive bus duct

Technical Field

The utility model relates to a power transmission equipment field specifically is a heat dissipation intensive bus duct is synthesized to symmetry formula.

Background

The conventional intensive bus duct has the structural characteristics that: the intensive bus duct is composed of a shell, a phase bus, a polyester film, an insulating partition plate, an insulating clamping block, a shell fastener, a connector fastener and the like, wherein the surface of the bus is coated by the polyester film; the buses are tightly arranged and clamped according to the sequence of PE, L1, L2, L3 and N, and are assembled in the bus duct shell to form a sandwich structure. The shell is composed of an upper cover plate, a lower cover plate, a left side plate and a right side plate, is made of aluminum alloy sections or galvanized plates, is formed by rolling processing such as sawing, bending or rolling forming, and is formed by riveting or screw assembling during final assembly.

Along with the popularization of the bus duct in the aspect of building, the safety problem of the bus duct is more and more concerned. Because the existence of resistance and impedance in the conductor, can produce the heat in the bus duct circular telegram process, each position temperature of bus duct risees gradually, if the heat does not in time distribute away, can cause the bus temperature rise totality to rise, leads to the electric energy loss to increase, and insulating material is ageing to be accelerated, and the life of bus duct shortens rapidly, causes the short circuit accident even. The existing bus duct mainly relies on the shell to radiate heat or adds radiating fins and air convection holes on the shell, the radiating effect is not ideal, and the bus bar phase sequence of the traditional bus duct generally is as follows: PE, L1, L2, L3, N, the heat that generating in the generating line operation is through convection current, heat conduction etc. form, the transmission is sent the shell and is dispelled. The L2 and L3 phase busbars with the largest heat productivity are arranged in the middle of the busbar, so that heat is gathered and is difficult to radiate.

Therefore, in order to ensure that the busway works safely and the temperature rise of each part of the busway meets the national standard, the invention of the intensive busway with better heat dissipation effect is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an intensive bus duct to solve foretell technical problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a symmetrical comprehensive heat dissipation intensive bus duct is characterized by comprising a shell and a plurality of conductors extending along the length direction of the shell, wherein the shell is surrounded by two cover plates and two side plates to form a closed structure with an inner space, the conductors are arranged in the shell in parallel at intervals in the width direction of the shell, and the conductors penetrate through the shell in the length direction of the shell;

the shell is characterized by further comprising two PE sheets which are symmetrically arranged between the conductors by taking the center line of the shell as a symmetry axis, and two ends of each PE sheet in the height direction of the shell are bent outwards and extend out of the shell.

As an optimal technical scheme of the utility model, the curb plate is in the outside bending type in the ascending both ends of casing direction of height forms the kink, the kink with the PE piece contacts.

As an optimized technical scheme of the utility model, the conductor is 4, every the conductor surface has all wrapped up the insulating film, just is in the outside one side of leaning on of PE piece respectively is provided with 2 conductors.

As a preferred technical solution of the present invention, two outermost conductors are L1 phase and N phase, respectively, and two adjacent conductors of the PE sheet are L2 phase and L3 phase, respectively.

As an optimal technical scheme of the utility model, the apron with fix through rivet or screw between the kink of curb plate, rivet or screw run through the PE piece.

As an optimized technical scheme of the utility model, the apron with the curb plate is iron, aluminium or its alloy and makes, the PE piece is made for aluminium or copper.

The utility model has the advantages that:

(1) through the arrangement of the plurality of PE sheets, heat generated by the phase lines L2 and L3 of the bus is quickly conducted out of the shell by utilizing the good heat conducting property of aluminum or copper, so that the temperature rise of the bus during operation can be effectively reduced, and the current carrying capacity of the bus duct is improved;

(2) besides the heat dissipation function, the PE sheet is arranged in the shell, two ends of the PE sheet extend out of the shell and are fixed with the cover plate and the side plates, and a pull rod structure is formed in the shell, so that the structural strength of the bus duct is further enhanced, and the stability and the safety of the bus duct are improved;

(3) the PE sheet taking the aluminum material or the copper material as the raw material has high heat conductivity coefficient, and as the PE, no current passes through the PE sheet during normal operation, and the PE sheet does not generate heat per se; the metal forming is easy, the cost is low, the processing technology is simple, the assembly is convenient, the bus duct integral structure is a symmetrical type, the PE middle shell adopts a mode of being in the middle, the upper end and the lower end are respectively assembled with the outer shell in an attaching mode, the phase line L1 is the same as the N phase in specification, the L2 is the same as the L3, and the design and the production of a bus elbow are simplified.

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

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is an axial half-sectional view of the present embodiment.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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 in specific cases to those skilled in the art.

Referring to the attached

drawings

1 and 2, the utility model provides an intensive bus duct, its purpose makes the heat-sinking capability and the structural strength of bus duct obtain improving through the inside mode that sets up the PE piece. The specific implementation mode is as follows:

the utility model provides a heat dissipation intensive bus duct is synthesized to symmetry formula, includes casing, a plurality of edge casing length direction along the conductor 3 that stretches and a plurality of set up in PE piece 1 between the conductor, the casing surrounds the enclosed construction that forms to have an inner space by two apron 2 and two curb plates 3, a plurality of conductors are in parallel interval set up in the casing on the casing width direction, just on the casing length direction the conductor runs through the casing. The two ends of the PE sheet 1 in the height direction of the shell are bent outwards and extend out of the shell. The two ends of the side plate 3 in the height direction of the shell are bent outwards to form bent parts 31, and the bent parts 31 are in contact with the PE sheet 1. The PE sheet 1 is used as a heat dissipation structure, heat accumulated inside can be transferred to a shell and air, specifically, the number of the conductors is 4, namely, L1 phase 4, L2 phase 5, L3 phase 6 and N phase 7, the surface of each conductor is wrapped by an insulating film, and 2 conductors are respectively arranged on the outer side of the PE sheet 1. In addition, since the L2 phase 5 and the L3 phase 6 generate the largest current flux and generate the largest heat during the operation of the bus duct, the conductors are preferably arranged in a manner that two outermost conductors are the L14 phase and the N phase 7, respectively, and two conductors adjacent to the PE sheet 1 are the L2 phase 5 and the L3 phase 6, respectively.

In this embodiment, the cover plate 2 and the bent portion 31 of the side plate are fixed by a rivet or a screw, and the rivet or the screw penetrates through the PE sheet 1.

In this embodiment, the cover plate 2 and the side plate 3 are made of iron, aluminum or an alloy thereof, and the PE sheet 1 is made of aluminum or copper, so that switching between independent copper PE or aluminum PE products can be achieved as required.

Claims

1. A symmetrical comprehensive heat dissipation intensive bus duct is characterized by comprising a shell and a plurality of conductors extending along the length direction of the shell, wherein the shell is surrounded by two cover plates and two side plates to form a closed structure with an inner space, the conductors are arranged in the shell in parallel at intervals in the width direction of the shell, and the conductors penetrate through the shell in the length direction of the shell;

2. The symmetrical integrated heat dissipation intensive bus duct of claim 1, wherein the two ends of the side plates in the height direction of the housing are bent outward to form bent portions, and the bent portions are in contact with the PE sheet.

3. The symmetrical integrated heat dissipation intensive bus duct of claim 2, wherein the number of the conductors is 4, each conductor is covered with an insulating film, and 2 conductors are respectively disposed on the outer sides of the PE sheets.

4. The symmetrical integrated heat dissipation intensive bus duct of claim 3, wherein the two outermost conductors are L1 phase and N phase, respectively, and the two conductors adjacent to the PE sheet are L2 phase and L3 phase, respectively.

5. The compact bus duct of any one of claims 1 to 4, wherein the bent portions of the cover plate and the side plates are fixed by rivets or screws, and the rivets or screws penetrate through the PE sheets.

6. The symmetrical integrated heat dissipation intensive bus duct of claim 5, wherein the cover plate and the side plates are made of iron, aluminum or alloys thereof, and the PE sheets are made of aluminum or copper.