CN106786272A - Plug type bus duct, plug-in unit, plug-in type bus-bar system and installation tool - Google Patents

Abstract

Plug type bus duct, plug-in unit, plug-in type bus-bar system and installation tool.The present invention relates to plug type bus duct, including housing and the multiple bus units being arranged in housing, the bottom of the housing is provided with the first opening for plug-in unit insertion, and each bus unit includes：The insulation assembly in housing is arranged at, the second opening is provided with the top of the insulation assembly；The conductive component for being surrounded in the insulation assembly and by the insulation assembly is arranged at, the conductive component is just provided with the conductive structure that can be made electrical contact with the connection-peg from the perpendicular plug-in unit for being inserted upwardly into the second opening to the described second opening.The invention further relates to the plug-in unit coordinated with the plug type bus duct, and the plug-in type bus-bar system that is constituted with the plug type bus duct and plug-in unit and auxiliary mounting tool.In the plug-in type bus-bar system, between plug-in unit and bus duct by the way of vertical upper grafting, plug-in unit direct screening connects stress equalization in bus duct, electrical contact firmly, be difficult to release, reliability and security are good.

Description

Plug-in busway, plug-in units, plug-in busbar systems and installation tools

technical field

The invention relates to the field of power distribution, more specifically, to a plug-in bus duct, a plug-in unit, a plug-in bus system and an installation tool for installing the plug-in unit in the bus duct.

Background technique

With the emergence of modern engineering facilities and equipment, the power consumption of all walks of life is increasing rapidly, especially the emergence of many high-rise buildings and large workshops. The traditional cables used as power transmission wires can no longer meet the requirements in large current transmission systems. The parallel use of multiple cables brings a lot of inconvenience to the site installation and construction connection. As a new type of distribution wire, the plug-in bus duct emerges at the historic moment. Usually, the plug-in busway needs to cooperate with the plug-in box to separate a current transmission branch. Specifically, there are several sockets on the plug-in busway, and a corresponding number of plugs on the plug-in box. The plug on the connection box can be inserted into this socket.

At present, the cooperation between the plug on the plug-in box and the socket on the plug-in busway is all horizontally inserted. For example, in the power distribution track disclosed in CN102918722A, the thorns of the plug-in unit are inserted into the corresponding busbar assembly from the horizontal direction. Affected by various factors such as the gravity of the plug-in box, the electrical contact of this horizontal plug-in method is not firm enough, and it is easy to loosen, resulting in poor reliability.

Contents of the invention

The technical problem to be solved by the present invention is to provide a plug-in bus duct, a plug-in unit and a plug-in bus duct composed of the plug-in bus duct and the plug-in unit, aiming at the above-mentioned defects of the prior art. It is an installation tool for connecting busbar system and auxiliary plug-in unit installed in busway.

In order to solve the technical problem, the present invention proposes a plug-in busway in the first aspect, which includes a housing and a plurality of busbar units arranged in the housing. The bottom of the housing is provided with a first plug-in unit. openings, each of said busbar units comprising:

an insulating component arranged in the casing, the top of the insulating component is provided with a second opening;

A conductive component arranged in the insulating component and surrounded by the insulating component, facing the second opening, the conductive component is provided with a plug that can be in electrical contact with the plug connector of the plug-in unit inserted into the second opening vertically conductive structure.

According to an embodiment of the first aspect of the present invention, a plurality of mounting seats protruding toward the inside of the housing are formed on the inner side wall of the housing, and the insulation assemblies of the plurality of busbar units are respectively clamped on the multiple mounting seats. in a mount.

In an embodiment according to the first aspect of the present invention, the conductive component is clamped in the insulating component.

In order to solve the technical problem, the present invention proposes a plug-in unit used in conjunction with the busway in the second aspect, including a vertically extending plug-in rod and a plurality of plug-in sockets extending laterally from the plug-in rod. The bottom of the socket is provided with a plug connector extending vertically downwards to electrically contact the conductive components of the busway from the vertical direction.

In an embodiment according to the second aspect of the present invention, each of the sockets corresponds to a busbar unit in the busway.

In order to solve the technical problem, the present invention proposes a plug-in busbar system in the third aspect, which includes a busway and at least one plug-in box, and the plug-in box is electrically connected to the busway through a plug-in unit, wherein:

The plug-in unit includes a vertically extending plug-in rod and a plurality of plug-in sockets extending laterally from the plug-in rod, and a vertically downwardly extending plug-in joint is provided at the bottom of the plug-in socket;

The bus duct includes a housing and a plurality of bus units arranged in the housing, the bottom of the housing is provided with a first opening for insertion of the plug-in unit, and each bus unit includes:

an insulating component arranged in the casing, the top of the insulating component is provided with a second opening;

A conductive component arranged in the insulating component and surrounded by the insulating component, facing the second opening, the conductive component is provided with a conductive plug that is in electrical contact with the plug connector of the plug-in unit inserted into the second opening vertically. structure.

According to an embodiment of the third aspect of the present invention, the conductive structure includes a vertically upwardly extending conductive post, and the plug connector includes two conductive elastic pieces that are relatively parallel and offset relative to each other when the conductive post is inserted. .

In an embodiment according to the third aspect of the present invention, the conductive protrusion is arranged on the conductive component in a vertically elastically loaded manner.

According to an embodiment of the third aspect of the present invention, the plug connector includes conductive protrusions extending vertically downward, and the conductive structure includes relatively parallel structures that extend vertically and are biased relative to each other when the conductive protrusions are inserted. Move the two conductive shrapnel.

In an embodiment according to the third aspect of the present invention, the conductive protrusions are disposed on the bottom of the socket in a vertically elastically loaded manner.

According to an embodiment of the third aspect of the present invention, the top lower surface of the housing is provided with a positioning slot for positioning the plug-in unit, a third opening is opened at the bottom of the positioning slot, and the plug-in rod The top is provided with a positioning plate inserted into the positioning slot through the third opening.

According to an embodiment of the third aspect of the present invention, a second insulating component extending around the inner circumference of the positioning card slot is provided in the positioning card slot, and a grounding component extending around the inner circumference of the insulating component is provided in the second insulating component. The wire conductive component, and the second insulating component and the ground wire conductive component also form openings corresponding to the third opening.

According to an embodiment of the third aspect of the present invention, the plug-in box includes a box body and the plug-in unit arranged on the top of the box body; the box body is provided with a circuit breaker module and at least one connector and can Replacement main control module.

In order to solve the technical problem, the present invention proposes an installation tool in the fourth aspect, which is used to install the plug-in box in the aforementioned plug-in bus duct, the plug-in box has the aforementioned plug-in unit, and the installation tool It includes a first connecting rod and a second connecting rod that are rotatably connected around a pivot assembly, the end of the first connecting rod is rotatably connected to a pressure block that can abut against the bus duct, and the end of the second connecting rod is rotatably connected to the plug box, When the first connecting rod and the second connecting rod are relatively rotated and opened, the plug box is driven to move vertically downward relative to the bus duct.

According to an embodiment of the fourth aspect of the present invention, the inner end of the pivoting assembly can move along a sliding slot provided on the plug box, and the outer end of the pivoting assembly is fixedly connected to an operating handle.

According to the plug-in busbar system of the present invention, the plug-in unit and the busway are inserted vertically, the plug-in unit is directly hung on the busway, the connection force is balanced, the electrical contact is firm, not easy to loose, and reliable. Good sex and safety. By adopting the installation tool of the present invention, it is only necessary to relatively rotate the first connecting rod and the second connecting rod to realize the plugging or unplugging of the plug-in unit and the bus duct, and the operation is simple and convenient.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic diagram of a cross-sectional structure of a plug-in bus duct according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a three-dimensional structure of a plug-in unit according to an embodiment of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of a plug connector according to an embodiment of the present invention;

Fig. 4 is a schematic cross-sectional view of an initial state in which the plug-in unit shown in Fig. 2 is mated with the busway shown in Fig. 1;

Fig. 5 is a schematic cross-sectional view of a state in which the plug-in unit shown in Fig. 2 is fully mated with the busway shown in Fig. 1;

Fig. 6 is a schematic diagram of a cross-sectional structure of a plug-in bus duct according to another embodiment of the present invention;

Fig. 7 is a schematic cross-sectional view of a plug-in unit inserted into the busway shown in Fig. 5 according to another embodiment of the present invention;

Fig. 8 is a three-dimensional structural schematic diagram of an installation tool according to an embodiment of the present invention;

Fig. 9 is a schematic structural view of a plug box according to an embodiment of the present invention;

Fig. 10 is a schematic structural diagram of the main control module of the plug box in Fig. 9 .

detailed description

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Fig. 1 is a cross-sectional schematic diagram of a plug-in bus duct 100 according to an embodiment of the present invention. As shown in FIG. 1 , the plug-in busway 100 mainly includes a housing 110 and a plurality of busbar units 120 disposed in the housing 110 . The casing 110 is closed on three sides and has an opening 111 at the bottom. A plurality of mounting seats 112 extending toward the inside of the housing 110 are formed on the inner wall of the housing 110, and the plurality of mounting seats 112 can be separately arranged on both sides of the opening 111, and a plurality of busbar units 120 are snapped on the plurality of mounting seats 112 respectively. Inside the mounting seat 112. Specifically as shown in FIG. 1 , the busbar unit 120 includes an insulating component 121 and a conductive component 123 , the insulating component 121 is clamped in the corresponding mounting seat 112 , and the conductive component 123 is clamped in the insulating component 121 and surrounded by the insulating component 121 . Moreover, the top of the insulating component 121 is provided with an opening 122, and the conductive component 123 has a conductive structure 124 facing the opening 122 so as to be in electrical contact with the plug connector 213 of the plug unit 210 (see FIG. 2 ), specifically as shown in FIG. 1 In the illustrated embodiment, the conductive structure 124 is a conductive protrusion extending vertically upward. As further shown in FIG. 1 , hooks 115 and 116 may be provided on the top surface and the bottom surface of the housing 110 respectively, so as to install the entire bus duct 100 on installation structures such as ceilings and walls. The lower surface of the top of the housing 110 is also provided with a positioning slot 113 , and the bottom of the positioning slot 113 is provided with an opening 114 for positioning the plug-in unit 210 (see FIG. 2 ) after insertion. As further shown in FIG. 1 , an insulating component 1131 is arranged in the positioning card slot 113, and a ground wire conductive component 1132 is further arranged in the insulating component 1131, which is used to realize the ground wire when the plug-in unit 210 (see FIG. 2 ) is inserted. protection, a detailed introduction will be given later. The insulating component 1131 extends around the inner circumference of the positioning slot 113 , and the ground wire conductive component 1132 extends around the inner circumference of the insulating component 1131 .

FIG. 2 is a schematic perspective view of a plug-in unit 210 according to an embodiment of the present invention. The plug unit 210 is used to connect the plug box 200 to the bus duct 100 . As shown in FIG. 2 , the plug-in unit 210 includes a vertically extending plug-in rod 211 and a plurality of plug-in sockets 212 extending laterally from the plug-in rod 211 . horizontally on both sides. The bottom of each socket 212 is provided with a plug connector 213 extending vertically downward, and the plug connector 213 can electrically contact the conductive structure 124 through the opening 122 at the top of the insulating component 121 of the busbar unit 120 . Specifically, in the embodiment shown in FIG. 3 , the plug connector 213 includes a top 2131 and two conductive elastic pieces 2132 and 2133 extending downward from both sides of the top 2131 , and the two elastic pieces are oppositely arranged and roughly parallel. The plug connector 213 is fixedly installed on the bottom of the socket socket 212 through the top 2131 . As further shown in FIG. 2 , the top of the insertion rod 211 is also provided with a positioning plate 214 that can be inserted into the positioning slot 113 of the bus duct 100 for insertion positioning and ground wire protection.

The insertion and mating process of the plug-in unit 210 and the plug-in busway 100 described above in the present invention is as follows: first, the plug-in unit 210 is moved from The opening 111 at the bottom of the housing 110 is inserted into the housing 110 until the positioning plate 214 enters the positioning slot 113 through the opening 114 at the bottom of the positioning slot 113 and abuts against the ground wire conductive component 1132 at the top of the positioning slot 113 to achieve electrical contact (At this time, the plug box is grounded), then turn the plug unit 210 90 degrees, so that the socket 212 is just above each busbar unit 120, and the two conductive shrapnel 2132, 2133 of the plug connector 213 are just in line with the conductive boss 124 Relatively, as shown in Figure 4. Then, a vertical downward force is applied to the plug-in unit 210, so that the positioning plate 214 on the top of the plug-in rod 211 just abuts against the ground wire conductive component 1132 at the bottom of the positioning slot 113 to achieve electrical contact (the plug-in box is still grounding), as shown in Figure 5, at this time, the conductive protrusion 124 is just inserted between the two conductive elastic pieces 2132, 2133, so that the two conductive elastic pieces 2132, 2133 have a certain offset relative to each other, and the conductive protrusions are fully clamped. Post 124, to achieve a stable electrical contact. In this way, the plug-in unit 210 is plugged into the busway 100 by hanging vertically, the connection force is balanced, the electrical contact is firm, it is not easy to loose, the reliability and safety are good, and the whole plug-in process is realized. Ground protection.

Fig. 6 is a cross-sectional schematic diagram of a plug-in bus duct 500 according to another embodiment of the present invention. As shown in FIG. 6, the plug-in bus duct 500 has a structure similar to that of the plug-in bus duct 100 shown in FIG. . The casing 510 is closed on three sides and has an opening 511 at the bottom. The plurality of busbar units 520 are snapped into the plurality of mounting seats 512 formed on the inner side wall of the casing 510 respectively. Each busbar unit 520 includes an insulating component 521 and a conductive component 523 , the insulating component 521 is clamped in the corresponding mounting seat 512 , the conductive component 523 is clamped in the insulating component 521 and surrounded by the insulating component 521 . Moreover, an opening 522 is opened on the top of the insulating component 521 , and a conductive structure 524 is provided on the conductive component 523 facing the opening 522 so as to be in electrical contact with the plug connector of the plug-in unit. In the embodiment shown in FIG. 6 , the conductive structure 524 is two conductive elastic pieces that are relatively parallel and can be offset relative to each other when the plug connector of the plug-in unit is inserted. Correspondingly, as shown in FIG. 7 , the plug-in unit 610 matched with the bus duct 500 includes a vertically extending plug-in rod 611 and a plurality of plug-in sockets 612 extending laterally from the plug-in rod 611 , each The bottom of the socket 612 is provided with a conductive post 613 extending vertically downward. The conductive post 613 can be inserted between the two conductive elastic pieces 524 through the opening 522 at the top of the insulating component 521 of the busbar unit 520 to realize electrical contact. As further shown in FIG. 7 , the conductive post 613 can also be mounted on the bottom of the socket 612 in a vertically elastically loaded manner through a spring 614 , which can enhance the electrical contact pressure and make the connection stronger.

In order to facilitate the insertion of the plug-in box described above in the present invention in a vertically hanging manner with the bus duct through the plug-in unit, the present invention also proposes an installation tool to assist the installation of the plug-in box in the plug-in bus duct . FIG. 8 illustrates an installation tool 700 according to one embodiment of the invention. As shown in FIG. 8 , the installation tool 700 includes a first connecting rod 710 and a second connecting rod 720 , which are rotatably connected at one end around a pivot assembly 730 , that is, the first connecting rod 710 and the second connecting rod 720 can be opposite to each other. rotate about pivot assembly 730 relative to each other. The other end of the first connecting rod 710 is rotatably connected to a pressure block 740, and the other end of the second connecting rod 720 is provided with a mounting hole 721, which can be rotatably mounted on the end cover of the plug box 200 by, for example, a screw 760 (see FIG. 4 shown). An operating handle 750 is fixedly connected to the outer end of the pivoting assembly 730 to facilitate the installation operation.

As shown in Figure 4 and Figure 5, the working principle of the installation tool 700 is as follows: the pressing block 740 at the end of the first connecting rod 710 is inserted into the hole at the bottom of the housing 110 of the bus duct 100, and is against the bus duct 100; The end of the rod 720 is mounted on the plug box 200 by a screw 760 . When a horizontal force is applied to the operating handle 750 to make the inner end of the pivot assembly 730 move from left to right along a horizontal chute 230 provided on the socket box 200, the first link 710 and the second The connecting rod 720 is relatively rotated and opened, so that the second connecting rod 720 drives the socket box 200 to move downward relative to the bus duct 100, so that the plug-in unit is vertically plugged into the bus duct; When the inner end of the pivot assembly 730 moves from right to left along the chute 230 on the plug box 200 due to the force of the force, the first connecting rod 710 and the second connecting rod 720 are relatively rotated and closed, thereby passing the second connecting rod 720 drives the plug box 200 to move upward relative to the bus duct 100 to release the plug connection with the bus duct. With the aid of the above installation tools 700, the installation and disassembly of the plug box 200 are very convenient.

Fig. 9 shows a schematic structural diagram of a plug box 800 according to an embodiment of the invention. As shown in FIG. 9 , the plug box 800 includes a box body 820 and a plug unit 810 disposed on the top of the box body 820 , and the plug box 800 is electrically connected to the bus duct through the top plug unit 810 . For the specific implementation of the plug-in unit 810 and its electrical connection with the busway, refer to the introduction made above in conjunction with FIGS. 1-8 . The box body 820 is provided with a main control module 821 , a circuit breaker module 822 and a plurality of connectors 823 . The connector 823 is electrically connected with the plug unit 810 for outputting power. The main control module 821 is electrically connected to the plug-in unit 810 and each connector 823 through conductors, and is used for monitoring and displaying electrical parameters such as current and voltage output by the connector 823, and can also realize network communication. The circuit breaker module 822 is respectively electrically connected to the plug-in unit 810 and each connector 823 through conductors, so as to protect the load. When the output end of the connector 823 is overloaded or short-circuited or other faults occur, the circuit breaker module 822 will automatically switch the connection circuit between the plug-in unit 810 and the connector 823 . Specifically as shown in FIG. 9 and FIG. 10 , the main control module 821 is designed as a hot-swappable replaceable module, and its two sides are provided with threaded mounting holes 8211 , which can be locked and fixed on the box body 820 by eg screws 8212 . In the case of uninterrupted power supply, the main control module 821 can be pulled out from the box body 820 by loosening the screw 8212 . With such a design, the main control module 821 can be replaced, upgraded or maintained while other modules of the plug box 800 can still work normally without being affected, thereby achieving the purpose of replaceable, upgradeable and maintainable products.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (15)

1. A plug-in bus duct, characterized in that it includes a housing and a plurality of bus units arranged in the housing, the bottom of the housing is provided with a first opening for insertion of the plug-in unit, each of the The busbar unit includes: an insulating component arranged in the casing, the top of the insulating component is provided with a second opening; A conductive component arranged in the insulating component and surrounded by the insulating component, facing the second opening, the conductive component is provided with a plug that can be in electrical contact with the plug connector of the plug-in unit inserted into the second opening vertically conductive structure. 2. The plug-in busway according to claim 1, characterized in that, a plurality of mounting seats protruding into the interior of the housing are formed on the inner side wall of the housing, and the insulation components of the plurality of busbar units respectively clamped in the plurality of mounting seats. 3 . The plug-in bus duct according to claim 2 , wherein the conductive component is clamped in the insulating component. 4 . 4. A plug-in unit for use with a busway, characterized in that it includes a vertically extending plug-in rod and a plurality of plug-in sockets extending laterally from the plug-in rod, and the bottom of the socket is provided with A plug connector extending vertically downwards to make vertical electrical contact with the conductive components of the busway. 5. The plug-in unit according to claim 4, wherein each of the sockets corresponds to a busbar unit in the busbar slot. 6. A plug-in busbar system, comprising a busway and at least one plug-in box, the plug-in box is electrically connected to the busway through a plug-in unit, characterized in that: The plug-in unit includes a vertically extending plug-in rod and a plurality of plug-in sockets extending laterally from the plug-in rod, and a vertically downwardly extending plug-in joint is provided at the bottom of the plug-in socket; The bus duct includes a housing and a plurality of bus units arranged in the housing, the bottom of the housing is provided with a first opening for insertion of the plug-in unit, and each bus unit includes: an insulating component arranged in the casing, the top of the insulating component is provided with a second opening; A conductive component arranged in the insulating component and surrounded by the insulating component, facing the second opening, the conductive component is provided with a conductive plug that is in electrical contact with the plug connector of the plug-in unit inserted into the second opening vertically. structure. 7. The plug-in busbar system according to claim 6, wherein the conductive structure includes conductive protrusions extending vertically upwards, and the plug joints are arranged in parallel and facing each other when the conductive protrusions are inserted. Offset two conductive shrapnel. 8 . The plug-in busbar system according to claim 7 , wherein the conductive protrusion is arranged on the conductive component in a vertically elastically loaded manner. 9. The plug-in busbar system according to claim 6, characterized in that, the plug-in connector includes conductive protrusions extending vertically downward, and the conductive structure includes relatively parallel ones that extend vertically and conduct electricity. Two conductive springs that are offset relative to each other when a post is inserted. 10 . The plug-in busbar system according to claim 9 , wherein the conductive protrusion is arranged on the bottom of the socket in a vertically elastically loaded manner. 11 . 11. The plug-in busbar system according to claim 6, characterized in that, the top lower surface of the housing is provided with a positioning slot for positioning the plug-in unit, and a third opening is opened at the bottom of the positioning slot , the top of the inserting rod is provided with a positioning plate inserted into the positioning slot through the third opening. 12. The plug-in busbar system according to claim 11, characterized in that, a second insulating component extending around the inner periphery of the positioning card slot is arranged in the positioning card slot, and a winding coil is arranged in the second insulating component. A ground wire conductive component extends from the inner periphery of the insulating component, and the second insulating component and the ground wire conductive component both form openings corresponding to the third opening. 13. The plug-in busbar system according to claim 6, wherein the plug-in box includes a box body and the plug-in unit arranged on the top of the box body; the box body is provided with a circuit breaker module and at least one connector and replaceable main control module. 14. An installation tool for installing a plug-in box in the plug-in busway according to any one of claims 1-3, said plug-in box having the The plug-in unit described in item 1 is characterized in that the installation tool includes a first connecting rod and a second connecting rod that are rotatably connected around a pivot assembly, and the end of the first connecting rod is rotatably connected to a The pressing block and the end of the second connecting rod are rotatably connected to the plug-in box, so that when the first connecting rod and the second connecting rod are relatively rotated and opened, the plug-in box is driven to move vertically downward relative to the bus duct. 15. The installation tool according to claim 14, wherein the inner end of the pivoting assembly can move along a chute provided on the plug box, and the outer end of the pivoting assembly is fixedly connected to an operating handle .