CN211655675U

CN211655675U - Bus duct

Info

Publication number: CN211655675U
Application number: CN201922374973.2U
Authority: CN
Inventors: 朱海华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-09
Anticipated expiration: 2029-12-25

Abstract

The application relates to distribution equipment technical field especially relates to a bus duct, and the bus duct includes: the connector comprises a body, a plurality of sections of conductors and a connector assembly; the electric conductor and the joint component are arranged inside the body; any two adjacent conductors are connected by a connector assembly so that the conductors extend along the length of the body. The utility model provides a bus duct connects adjacent electric conductor through the joint Assembly, ensures the steadiness of being connected between electric conductor and the electric conductor, avoids prior art to dock two sections electric conductors then with the support or carry out simple connection through the fastener, leads to the bad contact of the connection position between electric conductor and the electric conductor in production and transportation easily and splits even, influences bus duct normal use.

Description

Bus duct

Technical Field

The application relates to the technical field of distribution equipment, in particular to a bus duct.

Background

At present, the standard of high-low voltage bus ducts commonly used in the market is very low, the safety performance and the service environment are limited, the connecting part of an internal conductor is not firm and is easy to damage, the fault rate in the operation process is very high, particularly, the bus ducts of a full-sealing type are damaged, once the connecting part is damaged in the transportation process, the shells need to be disassembled and assembled to repair, the sealing performance is seriously influenced, and the safety of use in severe environments such as humidity, corrosion and high temperature cannot be guaranteed when the bus ducts are used in various complex environments.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a bus duct to solve the current bus duct's that exists among the prior art conductor connecting structure unstability to a certain extent, the technical problem of easy damage in the transportation.

The application provides a bus duct, include: the connector comprises a body, a plurality of sections of conductors and a connector assembly;

the electrical conductor and the connector assembly are disposed inside the body;

any two adjacent electric conductors are connected through the joint component;

the joint assembly comprises a straight section joint and a bent section joint, and the surfaces of the straight section joint and the bent section joint are provided with corrugated parts;

one end of the straight section joint is connected with one end of one electric conductor, and the other end of the straight section joint is connected with the other end of the other electric conductor; a first welding channel and a second welding channel are formed on the straight section joint, and a first welding cavity, a second welding cavity and a third welding cavity are respectively formed on the inner surface of the straight section joint and the end parts of the two electric conductors;

the bent section joint comprises a first connecting part, a bent conductive part and a second connecting part which are sequentially connected, wherein a third welding channel is formed on the first connecting part, and a fourth welding channel is formed on the second connecting part; the first connecting part is connected with one end of one conductor, the second connecting part is connected with one end of the other conductor, a fourth welding cavity is formed between the first connecting part and one conductor, and a fifth welding cavity is formed between the second connecting part and the other conductor.

In any one of the above technical solutions, the conductor is a copper bar, and a plurality of notch portions are formed on an outer surface of the copper bar at intervals in a circumferential direction thereof.

In any of the above technical solutions, further, the body includes a housing, a plurality of insulating partitions;

the shell comprises a straight edge section and a bent section, the bent section is connected with the straight edge section and used for changing the extending direction of the body, and the cross section of the shell is circular or polygonal;

the insulating partition plates are arranged in the shell at intervals, the edges of the insulating partition plates are connected with the inner wall of the shell, and the insulating partition plates are used for supporting the electric conductors.

In any of the above technical solutions, further, the housing is provided with an air inlet and an air detection port;

the air inlet is used for introducing insulating gas into the shell;

the gas detection port is provided with a pressure detector.

In any of the above technical solutions, further, two ends of the body are provided with end caps, an opening at least one end of the body is provided with an expansion joint, and the conductor passes through the end caps and is connected with the expansion joint.

In any of the above technical solutions, further, the expansion joint includes a conduction portion and a connection portion;

the conduction part is connected with the electric conductor, the connecting part penetrates through the shell, and a reserved interface is formed on the connecting part and used for being electrically connected with external electric equipment.

In any of the above technical solutions, further, an insulating fixing sleeve is disposed outside the connecting portion, a sealing member is disposed between the insulating fixing sleeve and the connecting portion, and a sealing plate is disposed outside the insulating fixing sleeve and connected to the housing.

In any of the above technical solutions, further, the first welding cavity, the second welding cavity, the fourth welding cavity, and the fifth welding cavity are all spindle-shaped.

In any of the above technical solutions, further, the first connecting portion and the second connecting portion of the bent section joint and the straight section joint are provided with fasteners.

Compared with the prior art, the beneficial effect of this application is:

the application provides a bus duct includes: the connector comprises a body, a plurality of sections of conductors and a connector assembly;

the electric conductor all sets up the inside at the body with the joint Assembly, arbitrary two sections adjacent electric conductors are connected through the joint Assembly, make the electric conductor extend along the length of body in this body, guarantee power supply length, importantly, can ensure the stability of connecting between the multistage electric conductor, effectively avoid producing and break off between the in-process electric conductor and the electric conductor of transportation, influence circuit switches on, avoid simultaneously needing the dismouting to maintain the sealed bus duct body originally, destroy the leakproofness that the body was originally.

It is thus clear that the bus duct that this application provided connects adjacent electric conductor through the joint Assembly, ensures the steadiness of being connected between electric conductor and the electric conductor, avoids prior art to dock two sections electric conductors then with the support or carry out simple connection through the fastener, leads to the bad contact of the junction part between electric conductor and the electric conductor even fracture easily in production and transportation, influences bus duct normal use.

Drawings

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

Fig. 1 is a schematic structural diagram of a bus duct provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a connection assembly according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a connection assembly according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional view taken at section A-A of FIG. 3;

FIG. 5 is a cross-sectional view of an electrical conductor provided in an embodiment of the present application;

FIG. 6 is a cross-sectional view of another electrical conductor provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an expansion joint provided in an embodiment of the present application;

fig. 8 is another schematic structural diagram of an expansion joint provided in an embodiment of the present application.

Reference numerals:

1-body, 11-shell, 12-insulating partition board, 13-air inlet, 14-air inspection port, 15-end sealing piece, 2-electric conductor, 3-joint component, 31-straight section joint, 311-first welding channel, 312-second welding channel, 313-first welding cavity, 314-second welding cavity, 315-third welding cavity, 32-bent section joint, 321-first connecting part, 322-bent conducting part, 323-second connecting part, 324-fourth welding cavity, 325-fifth welding cavity, 4-expansion joint, 41-conducting part, 42-connecting part, 43-reserved interface, 44-insulating fixed sleeve, 45-sealing plate and 5-fastening piece.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to 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; 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 application can be understood in a specific case by those of ordinary skill in the art.

Bus ducts according to some embodiments of the present application are described below with reference to fig. 1-8.

Referring to fig. 1 to 8, an embodiment of the present application provides a bus duct, including: the connector comprises a body 1, a plurality of sections of conductors 2 and a connector assembly 3; the electric conductor 2 and the joint component 3 are arranged inside the body 1; any two adjacent conductors 2 are connected by a joint assembly 3 such that the conductors 2 extend along the length of the body 1.

The application provides a bus duct includes: the connector comprises a body 1, a plurality of sections of conductors 2 and a connector assembly 3;

electric conductor 2 and joint Assembly 3 all set up the inside at body 1, arbitrary two sections adjacent electric conductors 2 are connected through joint Assembly 3, make electric conductor 2 extend along body 1's length in body 1, guarantee power supply length, importantly, can ensure the stability of connecting between the multistage electric conductor 2, effectively avoid producing and break off between electric conductor 2 and the electric conductor 2 in the transportation, influence the circuit and switch on, avoid simultaneously needing the dismouting to maintain sealed bus duct body 1 originally, destroy the leakproofness originally of body 1.

It can be seen that the bus duct that this application provided connects adjacent electric conductor 2 through joint Assembly 3, ensures the steadiness of being connected between electric conductor 2 and the electric conductor 2, avoids prior art to dock two sections electric conductors 2 and then support with the support or carry out simple connection through fastener 5, leads to the connection position contact failure between electric conductor 2 and the electric conductor 2 easily even fracture in production and transportation, influences bus duct normal use.

It should be noted that the number of the conductive cables formed by sequentially connecting and extending the multiple sections of the conductive bodies 2 is the same as the number of the through holes formed in the insulating partition 12, and the number of the conductive bodies 2 may be determined according to the number of the circuit phases required by the actual power consumption situation, and preferably, in this application, the number of the conductive cables is 4, which is not limited thereto.

In one embodiment of the present application, preferably, as shown in fig. 1 to 3, the joint assembly 3 includes a straight joint 31 and a bent joint 32, and the surfaces of the straight joint 31 and the bent joint 32 are each provided with a corrugated portion;

one end of the straight joint 31 is connected with one end of one conductor 2, and the other end of the straight joint 31 is connected with the other end of the other conductor 2; the straight joint 31 is formed with a first welding channel 311 and a second welding channel 312, and the inner surface of the straight joint 31 and the ends of the two electrical conductors 2 form a first welding cavity 313, a second welding cavity 314 and a third welding cavity 315, respectively;

the bent section joint 32 comprises a first connecting part 321, a bent conductive part 322 and a second connecting part 323 which are connected in sequence, wherein the first connecting part 321 is provided with a third welding channel, and the second connecting part 323 is provided with a fourth welding channel; the first connection portion 321 is connected to one end of one conductor 2, the second connection portion 323 is connected to one end of the other conductor 2, and the two conductors 2 are electrically connected to each other, and a fourth solder chamber 324 is formed between the first connection portion 321 and one conductor 2, and a fifth solder chamber 325 is formed between the second connection portion 323 and the other conductor 2.

In addition, the surfaces of the straight-section joint 31 and the bent-section joint 32 are both formed with a corrugated portion, that is, at least part of the straight-section joint 31 and the bent-section joint 32 have a corrugated structure, so that the section circumferences of the straight-section joint 31 and the bent-section joint 32 can be increased, meanwhile, the straight-section joint 31 and the bent-section joint 32 can have good plasticity, and the encircling capacity of the straight-section joint 31 and the bent-section joint 32 is enhanced.

In this embodiment, on one hand, in the straight joint 31, one end of one of the conductors 2 is inserted into the straight joint 31, one end of the other conductor 2 is also inserted into the straight joint 31, and the ends of the two adjacent conductors 2 are butted, molten solder is respectively injected into the first welding channel 311 and the second welding channel 312, and the molten solder can flow into the first welding cavity 313, the second welding cavity 314 and the third welding cavity 315, so that the two conductors 2 and the straight joint 31 can be welded, and the three welding cavities 315 are filled with the molten solder, so that the two butted conductors 2 can be fixed.

On the other hand, for the bent section joint 32, because in the practical application process, the extending direction of the bus duct body 1 needs to be changed frequently, and the elbow is arranged at the designated position, the extending direction of the conductor 2 needs to be synchronous with the extending direction of the body 1, so that the two sections of conductors 2 need to be connected through the bent section joint 32 at the corresponding position, thereby ensuring the normal conduction of the circuit and the firmness of the connection. One end of one section of the electric conductor 2 is inserted into the first connecting part 321, one end of the other section of the electric conductor 2 is inserted into the second connecting part 323, molten tin solder is injected into the fourth welding cavity 324 through the third welding channel on the first connecting part 321, the electric conductor 2 inserted into the first connecting part 321 can be connected with the bent section joint 32, the molten tin solder is injected into the fifth welding cavity 325 through the fourth welding channel on the second connecting part 323, the electric conductor 2 in the second connecting part 323 can be connected with the bent section joint 32, and meanwhile, the bent conductive part 322 can ensure that a circuit is normally connected.

The soldered portion can be heated to a predetermined temperature to return to a molten state by soldering, and the conductor 2 can be separated from the straight joint 31 or the bent joint 32 without damaging the straight joint 31 or the bent joint 32.

In one embodiment of the present application, it is preferable that the first welding chamber 313, the second welding chamber 314, the fourth welding chamber 324, and the fifth welding chamber 325 are each spindle-shaped, as shown in fig. 2.

In this embodiment, the first welding cavity 313, the second welding cavity 314, the fourth welding cavity 324, and the fifth welding cavity 325 are all in a fusiform shape, so that the welding points at the soldering positions are all in a spindle shape, which can significantly improve the tensile strength of the welding points, improve the welding stability, and ensure the connection stability between the electrical conductor 2 and the electrical conductor 2.

In one embodiment of the present application, preferably, as shown in fig. 2 and 3, the first and

second connection portions

321 and 323 of the straight and

bent pieces

31 and 32 are provided with the fastening member 5.

In this embodiment, in the practical application, because the current strength that needs to bear is different, therefore need select conductor 2 of different specifications for use, make the thickness degree of conductor 2 unfixed, when the diameter of conductor 2 is less, straight section joint 31 and curved section joint 32 can be the tubular structure, when the diameter of conductor 2 is great, for the installation of being convenient for, can select to make straight section joint 31, curved section joint 32 into two sections for curved U type section bars, be the tube-shape after the concatenation, connect adjacent both ends conductor 2, and fasten the locking at the position of butt joint through fastener 5, fastener 5 can be pressure bolt, of course, is not limited to this.

In one embodiment of the present application, preferably, the electrical conductor 2 is a copper bar, and a plurality of notch portions are formed on a surface of the copper bar at intervals along a circumferential direction thereof.

In this embodiment, the copper rod has good electrical conductivity, and the surface of the copper rod in this application is uniformly formed with a plurality of gap portions along the circumference of the copper rod, so that the cross section of any position of the copper rod forms a special-shaped pattern, two preferred specific forms are provided in this application embodiment, such as the radial form shown in fig. 5 and 6, which can significantly increase the overall circumference of the cross section of the copper rod, or, because the circumference of the surface of the copper rod significantly increases, as can be known from the skin effect of the current, the current will tend to pass through the surface layer of the conducting wire, so that the copper rod provided in this application has stronger electrical conductivity, and the safety performance in the process of electric power transportation is improved.

In one embodiment of the present application, preferably, as shown in fig. 1 and 7, the body 1 includes a housing 11, a plurality of insulating partitions 12;

the shell 11 comprises a straight section and a bent section, the bent section is connected with the straight section and used for changing the extending direction of the body 1, and the cross section of the shell 11 is circular or polygonal;

a plurality of insulating partitions 12 are arranged at intervals in the housing 11, and edges of the insulating partitions 12 are connected with an inner wall of the housing 11, and the insulating partitions 12 are used for supporting the electric conductors 2.

In this embodiment, can connect through the welded mode between the multistage shell 11, and seal, the shape of shell 11 does not do the restriction, can be circular or polygon, circular cross section shell 11's strong structure is fit for burying the ground installation, square cross section shell 11 is fit for installing on the support, rectangular cross section shell 11 is fit for pasting the wall installation and conveniently expands user's electronic box, can select according to actual conditions, likewise, the cross sectional shape of electric conductor 2 also can have multiple shape, can keep unanimous with the shape of shell 11.

A plurality of insulating partition plates 12 are arranged inside shell 11 at intervals, optionally, the interval distance is one meter, but not limited thereto, through holes are opened on insulating partition plates 12 for penetrating conductors 2, on the one hand, conductors 2 are supported, on the other hand, a plurality of conductors 2 are separated, insulating partition plates 12 are made of insulating hard materials which can be shaped (formed), and peripheral steel linings are inlaid outside insulating partition plates 12, so that the strength of insulating partition plates 12 can be obviously enhanced, and the peripheral steel linings can be welded with shell 11, thereby avoiding displacement of insulating partition plates 12 and preventing insulating partition plates 12 from generating noise due to vibration.

Wherein, the shell 11 can be made of stainless steel, and has good strength and water-proof, rust-proof and corrosion-proof properties.

In one embodiment of the present application, preferably, as shown in fig. 1, the housing 11 is provided with an air inlet 13 and an air detection port 14; the gas inlet 13 is used for introducing insulating gas into the shell 11; the air vent 14 is provided with a pressure detector (not shown in the drawings).

In this embodiment, according to the field usage, the air chamber is divided into the inner space of the shell 11, and the part of the insulating partition plate 12 except for the through hole is a hollow structure, the air inlet 13 and the gas detection port 14 are arranged at the part of the shell 11 corresponding to the air chamber, and insulating arc extinguishing gas (the insulating arc extinguishing gas can be SF6 gas, namely sulfur hexafluoride gas, certainly, not limited thereto) is introduced into the air chamber through the air inlet 13, so that the bus duct provided by the application is a high-voltage bus duct, the structure is stronger, the safety performance of the bus duct is improved, the service life is greatly prolonged, the application range is wider, the pressure detector at the gas detection port 14 is periodically checked, the pressure in the gas injection chamber is closed, and when the pressure is insufficient, the insulating gas is timely supplemented into the air.

According to the principle, the air chamber can be vacuumized, so that the bus duct is a vacuum bus duct.

In one embodiment of the present application, preferably, as shown in fig. 1 and 7, both ends of the body 1 are provided with a sealing end 15, at least one opening of one end of the body 1 is provided with an expansion joint 4, and the electric conductor 2 is connected with the expansion joint 4 through the sealing end 15.

In this embodiment, both ends of the body 1 are provided with end caps for sealing and plugging both ends of the body 1, and the safety of the bus duct in use in a special environment is enhanced.

At least one end of the body 1 is provided with an expansion joint 4 for connecting external electric equipment, such as a user electric box, one end of the conductor 2 at the head end or the tail end penetrates through the end-sealing to be connected with the expansion joint 4, and the expansion joint 4 is connected with the user electric box, so that current transmission can be completed.

In one embodiment of the present application, preferably, as shown in fig. 5, the expansion joint 4 includes a conduction part 41 and a connection part 42;

the conduction part 41 is connected with the conductor 2, the connection part 42 is inserted into the housing 11, and the connection part 42 is formed with a reserved interface 43 for electrically connecting with an external electric device.

Wherein, conduction part 41 can be closed ring, sets up around electric conductor 2 for conduction part 41 and electric conductor 2 are connected firmly, and conduction part 41 also can be the centre gripping arm that the symmetry set up, and forms the clamping space between two centre gripping arms, can be with electric conductor 2 spacing in the clamping space.

In this embodiment, the conducting portion 41 surrounds the conductor 2 along the circumferential direction of the conductor 2, so that the conductor 2 is connected to the conducting portion 41, and after the conducting portion 41 surrounds the conductor 2, the conducting portion 41 is tightly connected to the conductor 2 by tightening the lock bolt. The electric wire led out from the user electric box is connected into the reserved interface 43, and the electric wire is screwed and locked in the reserved interface 43 by another locking bolt, so that the conduction part 41 and the connection part 42 are conducted with the electric wire led out from the user electric box, and the circuit can be switched on.

In one embodiment of the present application, preferably, as shown in fig. 7, an insulating fixing sleeve 44 is provided on an outer portion of the connecting portion 42, and a sealing member is provided between the insulating fixing sleeve 44 and the connecting portion 42, and a sealing plate 45 is provided on an outer portion of the insulating fixing sleeve 44, and the sealing plate 45 is connected to the housing 11.

In this embodiment, the insulating fixing sleeve 44 can seal between the connecting portion 42 and the housing 11, so as to prevent water from entering the housing 11 along a gap of the connecting portion 42, the sealing plate 45 is attached to the surface of the housing 11 and is disposed outside the insulating fixing, and the sealing plate 45 excessively extrudes the insulating fixing sleeve 44, thereby significantly improving the sealing effect.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bus duct, comprising: the connector comprises a body, a plurality of sections of conductors and a connector assembly;

any two adjacent electric conductors are connected through the joint component;

2. The bus duct of claim 1, wherein the electrical conductor is a copper bar, and wherein a plurality of notches are formed in an outer surface of the copper bar at intervals along a circumferential direction of the copper bar.

3. The bus duct of claim 1 or 2, wherein the body comprises an outer shell, a plurality of insulating partitions;

4. The bus duct of claim 3, wherein the housing is provided with an air inlet and an air detection port;

the air inlet is used for introducing insulating gas into the shell;

the gas detection port is provided with a pressure detector.

5. The bus duct of claim 3, wherein both ends of the body are provided with end caps, at least one opening of the body is provided with an expansion joint, and the electric conductor passes through the end caps to be connected with the expansion joint.

6. The bus duct of claim 5, wherein the expansion joint comprises a conduction portion and a connection portion;

7. The bus duct of claim 6, wherein an insulating fixing sleeve is provided on an outer portion of the connecting portion, and a sealing member is provided between the insulating fixing sleeve and the connecting portion, and a sealing plate is provided on an outer portion of the insulating fixing sleeve, the sealing plate being connected to the housing.

8. The bus duct of claim 1, wherein the first weld cavity, the second weld cavity, the fourth weld cavity, and the fifth weld cavity are each spindle shaped.

9. The bus duct of claim 1, wherein the first and second connections of the bent section joint and the straight section joint are each provided with a fastener.