A five-phase busbar connecting bus duct

Abstract

The present invention discloses a five-phase busbar connection bus duct, comprising an inner connecting plate and an outer connecting plate, wherein the centers of the inner connecting plate and the outer connecting plate are provided with guide sleeves that are nested with each other, and the centers of the guide sleeves are provided with bolt through-holes, and symmetrical limit baffles are provided on the upper and lower sides of the guide sleeve, and the upper and lower limit baffles respectively form upper and lower limit grooves with the upper and lower boundaries of the inner and outer connecting plates, and three positioning pins, two short and one long, are provided in the middle position of the limit groove from left to right, the busbar is arranged in the middle of the limit groove, and an insulating sheet is provided on both sides of the busbar, and convex limit pins and concave limit grooves are respectively provided on the left and right sides of the guide sleeves of the inner and outer connecting plates, and the convex limit pins are inserted into the concave limit groove when the inner connecting plate and the outer connecting plate are nested, and a pad is provided on the outer side of the inner connecting plate and the outer connecting plate, and a square neck bolt hole is provided in the center of the pad. The inner connecting plate and the outer connecting plate are connected to the nut through the square neck bolt, and a bowl pad is provided between the nut and the outer connecting plate.

Description

Technical Field

[0001] The invention relates to a five-phase busbar connected to a bus duct. Background Art

[0002] Busbars are widely used in electrical equipment, especially complete sets of power distribution equipment. In particular, electrical cabinets in substations use many busbars and busbar connectors.

[0003] Conventional busbars are typically punched first and then bolted in. If the punching holes are inaccurate, bolt installation becomes time-consuming and labor-intensive. This is especially true during on-site installation, which is slow, inefficient, and labor-intensive. With rising labor costs and the harsh environment at power construction sites, the number of people willing to undertake on-site installation is decreasing, leading to increasing costs. Summary of the Invention

[0004] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a five-phase busbar connected to a bus duct.

[0005] A five-phase busbar-connected bus duct comprises a busbar connector and a five-phase bus duct;

[0006] The five-phase bus duct includes a bus duct housing, two side surfaces of the interior of the bus duct housing are respectively provided with two-phase busbar mounting seats, a one-phase busbar mounting seat is provided on the top, the two busbar mounting seats on the same side are arranged side by side, an I-shaped busbar is provided in each busbar mounting seat on the side, and a clamping device is provided at the upper and lower ends of the bus duct housing, the clamping device includes an upper clamping member and a lower clamping member, the upper clamping member and the lower clamping member are connected by bolts after being plugged in, the lower clamping member includes two symmetrically arranged L-shaped members, the upper clamping member includes a top cover, downward flanges are provided on both sides of the top cover, and two symmetrically arranged L-shaped members are also provided at the bottom of the top cover, the flanges of the top cover and the L-shaped member form a groove that matches the L-shaped member of the lower clamping member, and the L-shaped member of the lower clamping member is inserted into the groove;

[0007] The busbar connector includes an inner connecting plate and an outer connecting plate. The centers of the inner connecting plate and the outer connecting plate are provided with mutually nested guide sleeves. The centers of the guide sleeves are provided with bolt through holes. Symmetrical limit baffles are provided on the upper and lower sides of the guide sleeves. The upper and lower limit baffles form upper and lower limit grooves with the upper and lower boundaries of the inner and outer connecting plates respectively. Three positioning pins, two short and one long, are provided in the middle position of the limit groove from left to right. The long pin in the middle of the three positioning pins is the main busbar positioning pin, and the short pins on both sides of the long pin are insulating sheet positioning pins The busbar is arranged in the middle of the limit groove, and an insulating sheet is provided on each side of the busbar. The left and right sides of the guide sleeves of the inner and outer connecting plates are respectively provided with convex limit pins and concave limit grooves. When the inner connecting plate and the outer connecting plate are nested, the convex limit pins are inserted into the concave limit grooves. A pad is provided on the outside of the inner connecting plate and the outer connecting plate. A square neck bolt hole is provided in the center of the pad. The inner connecting plate and the outer connecting plate are connected to each other through square neck bolts and nuts. A bowl pad is provided between the nut and the outer connecting plate. The busbar connector is used for the I-shaped busbar between two busbar ducts.

[0008] As a further improvement, the guide sleeve and the backing plate are both made of insulating materials.

[0009] As a further improvement, a plastic shell insulation cover is provided on the outside of the nut connected to the square neck bolt, and the plastic shell insulation cover is connected to the outer connecting plate through a plastic tooth structure.

[0010] As a further improvement, the convex limiting pins, main busbar positioning pins, insulation sheet positioning pins and the inner and outer connecting plates are all connected by welding.

[0011] As a further improvement, the plastic shell insulation cover and the plastic latch are integrally formed by injection molding.

[0012] As a further improvement, the L-shaped piece and the bus duct housing are integrally formed through an extrusion process.

[0013] As a further improvement, the outside of the bus duct housing is provided with a plurality of rectangular protrusions, which are distributed at intervals for anti-slip and heat dissipation.

[0014] As a further improvement, the cross-section of the busbar mounting seat is Π-shaped, and the busbar mounting seat includes two symmetrically arranged J-shaped hook plates and a plug-in plate connected to the J-shaped hook plates. An I-shaped busbar is arranged between the two J-shaped hook plates, and the plug-in plate is connected to the slot on the busbar trough shell.

[0015] As a further improvement, arc-shaped plug-ins are provided on both sides of the plug-in board, the slot shape on the bus duct shell is also arc-shaped, a gap is provided between the slot and the plug-in block, and a support block for supporting the I-shaped busbar is provided on the plug-in board between the two J-shaped hook plates.

[0016] As a further improvement, both the front and rear ends of the slot are provided with internal threads, and after the busbar mounting seat is inserted into the slot, it is limited by limiting screws that match the internal threads.

[0017] Beneficial effects:

[0018] The present invention is cleverly designed. The upper and lower ends of the bus duct housing are mounted by snap-fitting, making installation easy and plug-and-play. The exterior of the bus duct housing is provided with a number of rectangular bumps for anti-slip and heat dissipation, which provide good heat dissipation performance and are easy to take out. The busbar mounting base is inserted into the bus duct housing through an insert and fixed with limit screws, making installation easy and replaceable, and facilitating inspection and maintenance.

[0019] Two inner and outer connecting plates are used to clamp the busbar, avoiding the defect in the prior art that the busbar is punched first and then fixed with bolts, which may cause punching errors; the inner and outer connecting plates and the busbar are positioned by locating pins, which can make the busbar installation position more accurate; the inner and outer connecting plates are installed by square neck bolts, which can be completed by one person without the need for additional wrenches, making installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a five-phase busbar connected to a bus duct;

[0021] Figure 2 yes Figure 1 A transverse cross-sectional view of

[0022] Figure 3 yes Figure 1 A longitudinal cross-sectional view of

[0023] Figure 4 It is a cross-sectional view of the busbar connector;

[0024] Figure 5 is a perspective view of the inner connecting plate;

[0025] Figure 6 is a perspective view of the outer connecting plate;

[0026] Figure 7 It is a structural diagram of a five-phase bus duct;

[0027] 1. Inner connecting plate 2. Outer connecting plate 3. Guide sleeve 4. Limit baffle 5. Boundary 6. Main busbar locating pin 7. Insulation sheet locating pin 8. Insulation sheet 9. Convex limit pin 10. Concave limit groove 11. Backing plate 12. Square neck bolt 13. Bowl washer 14. Square neck bolt hole 15. Busbar duct shell 16. Busbar mounting base 161. J-shaped hook plate 162. Plug-in plate 17. I-shaped busbar 18. Clamping device 19. Rectangular protrusion 20. Plastic shell insulation cover DETAILED DESCRIPTION

[0028] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0029] like Figures 1 to 7 As shown, a five-phase busbar connection bus duct includes an inner connecting plate 1, an outer connecting plate 2, a guide sleeve 3, a limit baffle 4, a boundary 5, a main busbar positioning pin 6, an insulating sheet positioning pin 7, an insulating sheet 8, a convex limit pin 9, a concave limit groove 10, a pad 11, a square neck bolt 12, a bowl pad 13, a square neck bolt hole 14, a bus duct shell 15, a busbar mounting seat 16, a J-shaped hook plate 161, a plug-in plate 162, an I-shaped busbar 17, a clamping device 18, a rectangular protrusion 19 and a plastic shell insulating cover 20.

[0030] A five-phase busbar-connected bus duct comprises a busbar connector and a five-phase bus duct;

[0031] The five-phase bus duct includes a bus duct housing, two side surfaces of the interior of the bus duct housing are respectively provided with two-phase busbar mounting seats, a one-phase busbar mounting seat is provided on the top, the two busbar mounting seats on the same side are arranged side by side, an I-shaped busbar is provided in each busbar mounting seat on the side, and a clamping device is provided at the upper and lower ends of the bus duct housing, the clamping device includes an upper clamping member and a lower clamping member, the upper clamping member and the lower clamping member are connected by bolts after being plugged in, the lower clamping member includes two symmetrically arranged L-shaped members, the upper clamping member includes a top cover, downward flanges are provided on both sides of the top cover, and two symmetrically arranged L-shaped members are also provided at the bottom of the top cover, the flanges of the top cover and the L-shaped member form a groove that matches the L-shaped member of the lower clamping member, and the L-shaped member of the lower clamping member is inserted into the groove;

[0032] The busbar connector includes an inner connecting plate and an outer connecting plate. The centers of the inner connecting plate and the outer connecting plate are provided with mutually nested guide sleeves. The centers of the guide sleeves are provided with bolt through holes. Symmetrical limit baffles are provided on the upper and lower sides of the guide sleeves. The upper and lower limit baffles form upper and lower limit grooves with the upper and lower boundaries of the inner and outer connecting plates respectively. Three positioning pins, two short and one long, are provided in the middle position of the limit groove from left to right. The long pin in the middle of the three positioning pins is the main busbar positioning pin, and the short pins on both sides of the long pin are insulating sheet positioning pins The busbar is arranged in the middle of the limit groove, and an insulating sheet is provided on each side of the busbar. The left and right sides of the guide sleeves of the inner and outer connecting plates are respectively provided with convex limit pins and concave limit grooves. When the inner connecting plate and the outer connecting plate are nested, the convex limit pins are inserted into the concave limit grooves. A pad is provided on the outside of the inner connecting plate and the outer connecting plate. A square neck bolt hole is provided in the center of the pad. The inner connecting plate and the outer connecting plate are connected to each other through square neck bolts and nuts. A bowl pad is provided between the nut and the outer connecting plate. The busbar connector is used for the I-shaped busbar between two busbar ducts.

[0033] Wherein, the guide sleeve and the backing plate are both made of insulating materials.

[0034] Among them, a plastic shell insulation cover is provided on the outside of the nut connected to the square neck bolt, and the plastic shell insulation cover is connected to the external connection plate through a plastic tooth structure.

[0035] Wherein, the convex limiting pins, main busbar positioning pins, insulation sheet positioning pins and inner and outer connecting plates are all connected by welding.

[0036] Wherein, the plastic shell insulation cover and the plastic latch are integrally formed by injection molding.

[0037] Wherein, the L-shaped piece and the bus duct housing are integrally formed through an extrusion process.

[0038] Among them, the outside of the bus duct shell is provided with a plurality of rectangular protrusions, which are distributed at intervals for anti-slip and heat dissipation.

[0039] Among them, the cross-section of the busbar mounting seat is Π-shaped, and the busbar mounting seat includes two symmetrically arranged J-shaped hook plates and a plug-in plate connected to the J-shaped hook plates. An I-shaped busbar is set between the two J-shaped hook plates, and the plug-in plate is connected to the slot on the busbar trough shell.

[0040] Among them, arc-shaped plug-in blocks are provided on both sides of the plug-in board, the slot shape on the bus duct shell is also arc-shaped, and a gap is provided between the slot and the plug-in block. A support block for supporting the I-shaped busbar is provided on the plug-in board between the two J-shaped hook plates.

[0041] Wherein, both the front and rear ends of the slot are provided with internal threads, and after the busbar mounting seat is inserted into the slot, it is limited by limiting screws matching the internal threads.

[0042] The upper and lower ends of the bus duct housing are installed by snap-fit, which is easy to install and plug and play. The outside of the bus duct housing is equipped with several rectangular bumps for anti-slip and heat dissipation, which have good heat dissipation performance and are easy to take out. The busbar mounting base is inserted into the bus duct housing through the plug block and fixed with limit screws. It is easy to install and highly replaceable, which facilitates inspection and maintenance.

[0043] Two inner and outer connecting plates are used to clamp the busbar, avoiding the defect in the prior art that the busbar is punched first and then fixed with bolts, which may cause punching errors; the inner and outer connecting plates and the busbar are positioned by locating pins, which can make the busbar installation position more accurate; the inner and outer connecting plates are installed by square neck bolts, which can be completed by one person without the need for additional wrenches, making installation more convenient.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A five-phase busbar connected to a bus duct, characterized in that: Including busbar connector and five-phase bus duct; The five-phase bus duct includes a bus duct housing, two side surfaces of the interior of the bus duct housing are respectively provided with two-phase busbar mounting seats, a one-phase busbar mounting seat is provided on the top, the two busbar mounting seats on the same side are arranged side by side, an I-shaped busbar is provided in each busbar mounting seat on the side, and a clamping device is provided at the upper and lower ends of the bus duct housing, the clamping device includes an upper clamping member and a lower clamping member, the upper clamping member and the lower clamping member are connected by bolts after being plugged in, the lower clamping member includes two symmetrically arranged L-shaped members, the upper clamping member includes a top cover, downward flanges are provided on both sides of the top cover, and two symmetrically arranged L-shaped members are also provided at the bottom of the top cover, the flanges of the top cover and the L-shaped member form a groove that matches the L-shaped member of the lower clamping member, and the L-shaped member of the lower clamping member is inserted into the groove; The busbar connector includes an inner connecting plate and an outer connecting plate. The centers of the inner connecting plate and the outer connecting plate are provided with mutually nested guide sleeves. The centers of the guide sleeves are provided with bolt through holes. Symmetrical limit baffles are provided on the upper and lower sides of the guide sleeves. The upper and lower limit baffles form upper and lower limit grooves with the upper and lower boundaries of the inner and outer connecting plates respectively. Three positioning pins, two short and one long, are provided in the middle position of the limit groove from left to right. The long pin in the middle of the three positioning pins is the main busbar positioning pin, and the short pins on both sides of the long pin are insulating sheet positioning pins The busbar is arranged in the middle of the limit groove, and an insulating sheet is provided on each side of the busbar. The left and right sides of the guide sleeves of the inner and outer connecting plates are respectively provided with convex limit pins and concave limit grooves. When the inner connecting plate and the outer connecting plate are nested, the convex limit pins are inserted into the concave limit grooves. A pad is provided on the outside of the inner connecting plate and the outer connecting plate. A square neck bolt hole is provided in the center of the pad. The inner connecting plate and the outer connecting plate are connected to each other through square neck bolts and nuts. A bowl pad is provided between the nut and the outer connecting plate. The busbar connector is used for the I-shaped busbar between two busbar ducts.

2. A five-phase busbar connected bus duct according to claim 1, characterized in that: The guide sleeve and the backing plate are both made of insulating materials.

3. The five-phase busbar connected bus duct according to claim 1, characterized in that: A plastic shell insulation cover is provided on the outside of the nut connected to the square neck bolt, and the plastic shell insulation cover is connected to the outer connecting plate through a plastic clamping tooth structure.

4. The five-phase busbar connected bus duct according to claim 1, characterized in that: The convex limiting pins, main busbar positioning pins, insulation sheet positioning pins and inner and outer connecting plates are all connected by welding.

5. The five-phase busbar connected bus duct according to claim 3, characterized in that: The plastic shell insulation cover and the plastic latch are integrally formed by injection molding.

6. The five-phase busbar connected bus duct according to claim 1, characterized in that: The L-shaped piece and the bus duct housing are integrally formed through an extrusion process.

7. The five-phase busbar connected bus duct according to claim 1, characterized in that: The outside of the bus duct housing is provided with a plurality of rectangular protrusions, which are distributed at intervals for anti-slip and heat dissipation.

8. The five-phase busbar connected bus duct according to claim 1, characterized in that: The cross-section of the busbar mounting seat is Π-shaped, and the busbar mounting seat includes two symmetrically arranged J-shaped hook plates and a plug-in plate connected to the J-shaped hook plates. An I-shaped busbar is set between the two J-shaped hook plates, and the plug-in plate is connected to the slot on the busbar trough shell.

9. The five-phase busbar connected bus duct according to claim 8, characterized in that: Arc-shaped plug-in blocks are provided on both sides of the plug-in board, the slot shape on the bus duct shell is also arc-shaped, and a gap is provided between the slot and the plug-in block. A support block for supporting the I-shaped busbar is provided on the plug-in board between the two J-shaped hook plates.

10. A five-phase busbar connected bus duct according to claim 9, characterized in that: Both the front and rear ends of the slot are provided with internal threads. After the busbar mounting seat is inserted into the slot, it is limited by limiting screws that match the internal threads.

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