External lap joint type high-capacity tapping unit

Abstract

The external lap joint type large-capacity tapping unit comprises a plug box and a branch component, the branch component is arranged at the front end of the plug box, and the external lap joint type large-capacity tapping unit is characterized in that the branch component is communicated with a bus main body through a special connector, and the special connector is a forked guide connector. A special connector is arranged on the bus main body, a branch component is arranged above the special connector in an overlapping manner, the front ends of the special connector and the branch component are connected with a busbar of the bus main body, and the rear end of the branch component is connected with a front sealing plate of a jack box phase. A special connector is directly used to connect the jack box with the bus, and a traditional pin connection mode is cancelled, so that the technical requirement of larger current is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of bus duct tapping, and specifically relates to an externally-connected large-capacity tapping unit. Background Art

[0002] After 20 years of development, the dense busbar has gradually transformed from the early simple power supply function to high performance. As a low-voltage electrical product, it is very close to people's production and life. The safety and stability of the bus duct has naturally become the focus of the market. The liquid protection performance of the bus duct has always been a pain point in the industry. As an industrial product composed of a variety of sheet metal parts, how to improve the protection performance of its gaps has become the focus of major manufacturers.

[0003] The plug-in box is equivalent to a cable branch box, which is used for cable tapping or transfer. It mainly plays the role of cable tapping and cable transfer. With the development of the cabling process of the distribution network, when the independent load with small capacity is distributed more concentratedly, a cable branch box can be used to connect multiple branches of the cable. Because the branch box cannot directly perform cable tapping operations on each line, having multiple small-area cables on a relatively long line often causes waste of cable use. Therefore, when the line is connected to the power load, a large trunk cable is often used for the line connection. Then, when approaching the load, a cable branch box is used to divide the trunk cable into several small-area cables, and the small-area cables are connected to the load. Utility Model Content

[0004] In order to solve the above problems, this paper proposes an externally overlapped large-capacity tapping unit, the tapping unit includes a plug-in box and a branch component, the front end of the plug-in box is provided with a branch component, the branch component is connected to the busbar body through a combined connector, the combined connector is a forked guide connector, and a branch component is overlapped above the combined connector. The front ends of the combined connector and the branch component are connected to the busbar of the busbar body, and the rear end of the branch component is connected to the front sealing plate of the plug-in box. The front sealing plate is a left and right split baffle, and the left and right plates of the front wind plate are respectively the N-side front sealing plate and the PE-side front sealing plate, and the inner sides of the N-side front sealing plate and the PE-side front sealing plate are respectively provided with N connecting rows and P E connecting row, the N connecting row and the PE connecting row are extended bend type connecting rows, the front end of the combined connector is provided with an extension plug-in piece, the upper part of the extension plug-in piece is provided with a branch component, the branch component is locked and connected with the outer side of the extension plug-in piece through a locking assembly, a busbar guide is provided between the branch component and the extension plug-in piece, the tap is led out at the busbar body, the combined connector is directly used to connect the plug-in box to the busbar, the traditional pin connection method is cancelled, so as to meet the technical requirements of higher current, and the conductor is extended from the busbar trough body in the form of high current-carrying branches, so that the new plug-in pile head not only has a current-carrying capacity of up to 1600A, but also has the ability to be quickly installed on site.

[0005] The plug-in box is a spliced box body. The bottom of the plug-in box is a C-shaped box body. A rear sealing plate is provided at the rear end of the box body, an N-side front sealing plate and a PE-side front sealing plate are provided at the front end of the box body, a box door is provided at the top of the box body, and a circuit breaker is provided inside the box body. The circuit breaker is electrically connected to the branch component. A guiding and limiting mechanism is provided at the bottom of the box body of the plug-in box. The box body is clamped and connected to the inner side of the bus cover plate of the bus main body through the guiding and limiting mechanism. The position limitation of the plug-in box is also very important. A guiding and limiting mechanism needs to be set at the bottom of the box body to ensure that when the plug-in box is preparing for plugging, it can move according to the correct direction position of the cover profile. After the plug-in box is placed on the busbar cover plate and starts to move, a second positioning needs to be set to ensure that the plug-in box is pushed to the specified position, and this position positioning can ensure that the plug-in claws of the plug-in box can meet the effective lapping length.

[0006] A branch connection protection cover is provided on the outside of the branch component. The branch component includes a top connection plate and a conducting row. The shape of the top connection plate is a rectangular assembly plate. The width of the top connection plate is the same as the width of the bus main body. The front end of the top connection plate is connected to the bus cover plate of the bus main body, the rear end of the top connection plate is connected to the front sealing plate of the plug-in box, a conducting row is vertically provided below the top connection plate, the conducting row is arranged through a plurality of parallel conducting rows, the front end of the conducting row is aligned with the combined connector, the conducting rows on both sides of the rear end of the conducting row are respectively connected to the N connection row and the PE connection row, and the middle of the rear end of the conducting row is connected to the circuit breaker. Both the N connection row and the PE connection row are L-shaped bent rows. One side of the N connection row and the PE connection row is connected to the front sealing plate, and the other side of the N connection row and the PE connection row is horizontally and vertically arranged on the front side of the front sealing plate. The plug-in claw is similar to a tee branch. The bending height of the plug-in claw is the same as the normal bending of the busbar, which not only meets the requirements of high-speed production but also meets the requirements of installation anti-misalignment. The extended plug-in claw of the plug-in box adopts a new extended bending design to ensure the lapping surface and lapping effect. When the plug-in box is plugged and installed, a customized special connector is used and connected according to the conventional connector installation steps. After tightening the torque, the assembly is completed.

[0007] The combined connector is a semi-connected connector. The extended insert of the combined connector is connected to the bottom of the busbar conducting row. The outside of the combined connector is fixedly connected to the busbar conducting row and the branch component through a locking component. An assembly limiting mechanism is provided in the middle of the combined connector. The assembly limiting mechanism is connected to the end of the busbar conducting row. The installation limiting mechanism during the installation of the combined connector ensures the reliable installation of the plug-in claws of the plug-in box and the busbar branch claws, and ensures the lapping area and lapping effect.

[0008] Beneficial effects:

[0009] By leading out a tap at the bus main body and directly connecting the plug-in box to the bus using a combined connector, the traditional pin connection method is cancelled, thereby meeting the technical requirements for a larger current.

[0010] Different from the existing welded pile - type insertion joints, in the form of high - current branches, the conductor is extended from the busway body, enabling the new insertion pile head to not only have a current - carrying capacity of up to 1600 A but also the ability to be quickly installed on - site.

[0011] The insertion claws are similar to tee - type branches, and the bending height of the insertion claws is the same as the normal bending of the busway, which not only meets the requirements of high - speed production but also the need for installation error prevention.

[0012] The insertion claws extended from the plug - in box adopt a new extended bending design to ensure the lapping surface and lapping effect. When the plug - in box is inserted and installed, a customized special - specification connector is used and connected according to the conventional connector installation steps. After tightening the torque, the assembly is completed.

[0013] The position limitation of the plug - in box is also very important. Guide limits need to be set at the bottom of the box body to ensure that when the plug - in box is being prepared for insertion, it can move according to the correct orientation of the cover profile. After the plug - in box is placed on the busway cover and starts to move, a second positioning needs to be set to ensure that the plug - in box is pushed to the designated position, and this position positioning can ensure that the insertion claws of the plug - in box can meet the effective lapping length.

[0014] The installation limit during the installation of the combined connector ensures the reliable installation of the insertion claws of the plug - in box and the bus bar branch claws, and ensures the lapping area and lapping effect. Description of the Drawings

[0015] Figure 1 It is an explosion diagram of an external lapping - type large - capacity tapping unit;

[0016] In the figure: 1. Door of the box, 2. Box body, 3. Rear sealing plate, 4. Front sealing plate on the N side, 5. Front sealing plate on the PE side, 6. Circuit breaker, 7. Branch component, 8. Branch connection protection cover, 9. Combined connector, 10. Bus bar main body. Detailed Description of the Invention

[0017] To deepen the understanding of the present invention, the present invention will be further described in detail below in combination with embodiments and drawings. These embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0018] Door of the box 1, box body 2, rear sealing plate 3, front sealing plate on the N side 4, front sealing plate on the PE side 5, circuit breaker 6, branch component 7, branch connection protection cover 8, combined connector 9, bus bar main body 10.

[0019] As Figure 1 shown;

[0020] An externally lapped large-capacity tap-off unit. The tap-off unit includes a plug-in box and a branch component 7. The front end of the plug-in box is provided with the branch component 7. The branch component 7 is connected to the bus main body 10 through a combined connector 9. The combined connector 9 is a bifurcated conducting connector. The branch component 7 is arranged overlapping above the combined connector 9. The front ends of the combined connector 9 and the branch component 7 are connected to the bus bar of the bus main body 10. The rear end of the branch component 7 is connected to the front sealing plate of the plug-in box. The front sealing plate is a left-right split baffle. The left and right plates of the front air plate are respectively the N-side front sealing plate 4 and the PE-side front sealing plate 5. The N-side front sealing plate 4 and the PE-side front sealing plate 5 are respectively provided with an N connection row and a PE connection row inside. The N connection row and the PE connection row are extended bent connection rows. The front end of the combined connector 9 is provided with an extended insertion piece. The branch component 7 is arranged above the extended insertion piece. The branch component 7 and the outside of the extended insertion piece are locked and connected through a locking component. A bus bar is arranged between the branch component 7 and the extended insertion piece. The plug-in box is a spliced box body 2. The bottom of the plug-in box is a C-shaped box body 2. The rear end of the box body 2 is provided with a rear sealing plate 3. The front end of the box body 2 is provided with the N-side front sealing plate 4 and the PE-side front sealing plate 5. The top end of the box body 2 is provided with a box door 1. A circuit breaker 6 is arranged inside the box body 2. The circuit breaker 6 is in mutual conduction with the branch component 7. The bottom of the box body 2 of the plug-in box is provided with a guiding limit. The box body 2 is clamped and connected to the inside of the bus cover plate of the bus main body 10 through the guiding limit. The outside of the branch component 7 is provided with a branch connection protection cover 8. The branch component 7 includes a top connection plate and a conducting row. The shape of the top connection plate is a rectangular assembly plate. The width of the top connection plate is the same as the width of the bus main body 10. The front end of the top connection plate is connected to the bus cover plate of the bus main body 10. The rear end of the top connection plate is connected to the front sealing plate of the plug-in box. A conducting row is vertically arranged below the top connection plate. The conducting row is arranged through a plurality of parallel conducting rows. The front end of the conducting row is aligned with the combined connector 9. The conducting rows on both sides of the rear end of the conducting row are respectively connected to the N connection row and the PE connection row. The middle of the rear end of the conducting row is connected to the circuit breaker 6. The combined connector 9 is a semi-connected connector. The extended insertion piece of the combined connector 9 is connected to the bottom of the bus bar. The outside of the combined connector 9 is mutually fixed to the bus bar and the branch component 7 through a locking component. The middle of the combined connector 9 is provided with an assembly limit. The assembly limit is connected to the end of the bus bar. Both the N connection row and the PE connection row are L-shaped bent rows. One side of the N connection row and the PE connection row is connected to the front sealing plate. The other side of the N connection row and the PE connection row is horizontally and vertically arranged on the front side of the front sealing plate.

[0021] Implementation example;

[0022] The plug-in box is mainly formed into a whole by a box body 2, a box door 1, a circuit breaker 6, a rear sealing plate 3, a PE-side front sealing plate 5 and an N-side front sealing plate 4; after the branch component 7 of the plug-in box is connected to the busbar of the busbar main body 10 through a combined connector 9, a branch connection protection cover 8 is used to protect the connection part.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An externally connected large-capacity tapping unit, the tapping unit comprises a plug-in box and a branching component, the front end of the plug-in box is provided with a branching component, characterized in that: The branch component is connected to the busbar body through a combined connector. The combined connector is a forked guide connector. A branch component is overlapped above the combined connector. The front ends of the combined connector and the branch component are connected to the busbar of the busbar body. The rear end of the branch component is connected to the front cover of the plug-in box. The front cover is a left and right split baffle. The left and right plates of the front wind plate are respectively the N-side front cover and the PE-side front cover. The inner sides of the N-side front cover and the PE-side front cover are respectively provided with N connection rows and PE connection rows. The N connection rows and PE connection rows are extended bend-type connection rows. An extended plug-in piece is provided at the front end of the combined connector. A branch component is provided above the extended plug-in piece. The branch component is locked and connected to the outer side of the extended plug-in piece through a locking assembly. A busbar guide is provided between the branch component and the extended plug-in piece.

2. An externally connected large-capacity tapping unit according to claim 1, characterized in that: The plug-in box is a spliced ​​box, the bottom of the plug-in box is a C-shaped box, the rear end of the box is provided with a rear sealing plate, the front end of the box is provided with an N-side front sealing plate and a PE-side front sealing plate, the top of the box is provided with a box door, the inside of the box is provided with a circuit breaker, the circuit breaker and the branch component are mutually conductive, the bottom of the box of the plug-in box is provided with a guide limit, and the box is connected to the inner side of the busbar cover of the busbar body through the guide limit.

3. An externally connected large-capacity tapping unit according to claim 1, characterized in that: A branch connection protection cover is provided on the outside of the branch component. The branch component includes a top connection plate and a conductor bar. The top connection plate is in the shape of a rectangular assembly plate. The width of the top connection plate is the same as the width of the busbar body. The front end of the top connection plate is connected to the busbar cover plate of the busbar body, and the rear end of the top connection plate is connected to the front sealing plate of the plug-in box. A conductor bar is vertically provided below the top connection plate. The conductor bar is arranged by a plurality of parallel guide bars. The front end of the conductor bar is aligned with the combined connector. The guide bars on both sides of the rear end of the conductor bar are respectively connected to the N connection bar and the PE connection bar, and the middle of the rear end of the conductor bar is connected to the circuit breaker.

4. An externally connected large-capacity tapping unit according to claim 1, characterized in that: The combined connector is a semi-connected connector, the extended plug of the combined connector is connected to the bottom of the busbar guide, the outer side of the combined connector is fixedly connected to the busbar guide and the branch component through a locking assembly, and an assembly limit is provided in the middle of the combined connector, and the assembly limit is connected to the end of the busbar guide.

5. The externally connected large-capacity tapping unit according to claim 1, characterized in that: The N connecting row and the PE connecting row are both L-shaped bending rows, one side of the N connecting row and the PE connecting row is connected to the front sealing plate, and the other side of the N connecting row and the PE connecting row is arranged horizontally and vertically on the front side of the front sealing plate.

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