Special-shaped sub-busbar

Abstract

The utility model belongs to the technical field of power equipment, and provides a special-shaped sub-busbar, which comprises three phases of connecting structures, each phase of connecting structure comprises a special-shaped busbar, a special-shaped bolt, a connecting plate and a conductive column, the section of the special-shaped busbar is of a C-shaped structure, the head of the special-shaped bolt is detachably and slidably connected in the C-shaped structure, one end of the connecting plate is connected with the conductive column, and the other end of the connecting plate is connected with the conductive column. The other end of the connecting plate is provided with a threaded hole and is in threaded connection with the rod portion of the special-shaped bolt through the threaded hole. According to the special-shaped sub-busbar provided by the utility model, the special-shaped busbar is connected with the connecting plate through the special-shaped bolt, the special-shaped busbar is connected with the switch through the connecting plate and the conductive column, and the special-shaped bolt can be detached by rotating 90 degrees along the axial direction of the special-shaped bolt, so that the installation position of the switch is convenient to adjust, the whole body does not need to be detached, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power equipment, and particularly relates to a special-shaped mother and son busbar. Background Art

[0002] The mother and son busbar refers to a smaller branch connecting piece in the power system, usually used to connect the main circuit and the branch circuit, playing the role of distributing electric energy. The mother and son busbar can be a copper busbar or an aluminum busbar. After insulation treatment, it is used to connect the main switch in the switch cabinet and the switches in each branch circuit, and its main role is to be used as a wire.

[0003] In power distribution equipment, after the existing mother and son busbar is installed with a circuit breaker, a fuse or other switches, the horizontal position cannot be adjusted flexibly. When adding other switches in a row of switches, it is necessary to disassemble the mother and son busbar together with the installed switches as a whole and adjust the positions one by one, which is troublesome to disassemble and assemble. Content of the Utility Model

[0004] The utility model provides a special-shaped mother and son busbar, aiming to solve the above technical problems.

[0005] The utility model is realized as follows. A special-shaped mother and son busbar includes a three-phase connection structure. Each phase of the connection structure includes a special-shaped mother busbar, a special-shaped bolt, a connecting plate and a conductive column. The cross-section of the special-shaped mother busbar is a C-shaped structure. The head of the special-shaped bolt is detachably and slidably connected in the C-shaped structure. One end of the connecting plate is connected to the conductive column, and the other end of the connecting plate is provided with a threaded hole and is threadedly connected to the rod portion of the special-shaped bolt through the threaded hole.

[0006] Further, limiting edges are respectively formed on both sides of the threaded hole, and the widths of the limiting edges on both sides match the width of the opening of the C-shaped structure.

[0007] Furthermore, the cross-section of the inner wall of the C-shaped structure and the cross-section of the head of the special-shaped bolt are trapezoidal structures with matching sizes.

[0008] Furthermore, adjacent flat surfaces and arc surfaces are symmetrically formed at the centers on two inclined surfaces of the head of the special-shaped bolt with a trapezoidal structure. The flat surface is perpendicular to the side surface of the head of the special-shaped bolt, the arc surface is arc-shaped and transitions to the side surface of the head of the special-shaped bolt, and the edge of the arc surface forms a fillet structure towards the side surface of the special-shaped bolt.

[0009] Furthermore, at the connection between the head and the rod of the special-shaped bolt, two sets of clamping parts and sliding parts are formed that match the opening of the C-shaped structure. The two sets of clamping parts and sliding parts are centrosymmetric. The clamping part has a right-angle structure, the sliding part has an arc-shaped sliding surface. The clamping part and the flat surface are located in the same quarter region of the axial direction of the special-shaped bolt, and the sliding part and the arc-shaped surface are located in the same quarter region of the axial direction of the special-shaped bolt.

[0010] Furthermore, a groove is provided on the top surface of the special-shaped bolt. A ball is slidably installed in the groove through a spring, and a part of the spherical surface of the ball protrudes from the top surface of the special-shaped bolt.

[0011] Furthermore, a straight groove matching the size of a flat screwdriver bit is provided on the end face of the rod of the special-shaped bolt.

[0012] Furthermore, it also includes multiple sets of sub-connection structures. Each set of sub-connection structures includes the special-shaped bolt, a connection plate, and a conductive column.

[0013] The special-shaped mother and child row provided by the present utility model uses a special-shaped bolt to connect the special-shaped mother row and the connection plate, and is connected to the switch through the connection plate and the conductive column. The special-shaped bolt can be disassembled by rotating 90 degrees along its own axial direction, so as to facilitate the adjustment of the installation position of the switch without the need for overall disassembly, saving time and effort. Description of the Drawings

[0014] Figure 1 is one of the structural schematic diagrams of the special-shaped mother and child row provided by the embodiment of the present utility model;

[0015] Figure 2 is the structural schematic diagram of the special-shaped mother row;

[0016] Figure 3 is the structural schematic diagram of the connection plate;

[0017] Figure 4 is the structural schematic diagram of the special-shaped bolt;

[0018] Figure 5 is Figure 4 the structural schematic diagram from another perspective;

[0019] Figure 6 is the second structural schematic diagram of the special-shaped mother and child row provided by the embodiment of the present utility model;

[0020] Figure 7 is the disassembly schematic diagram of the special-shaped bolt;

[0021] Figure 8 is the effect diagram of the special-shaped mother and child row provided by the embodiment of the present utility model connecting a circuit breaker;

[0022] Figure 9 is Figure 8 the top view of;

[0023] Figure 10 is Figure 8 the left view of.

[0024] The reference numerals in the figure respectively represent: 01 - circuit breaker, 1 - special-shaped busbar, 2 - special-shaped bolt, 3 - connecting plate, 4 - conducting column, 5 - threaded hole, 6 - limiting edge, 7 - flat surface, 8 - arc surface, 9 - fillet structure, 10 - clamping portion, 11 - sliding portion, 12 - ball, 13 - straight groove. Specific implementation manner

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] Refer to Figures 1 to 10 , an embodiment of the present utility model provides a special-shaped mother and son busbar, including a three-phase connection structure. Each phase connection structure includes a special-shaped busbar 1, a special-shaped bolt 2, a connecting plate 3 and a conducting column 4. The cross-section of the special-shaped busbar 1 is a C-shaped structure. The head of the special-shaped bolt 2 is detachably and slidably connected within the C-shaped structure. One end of the connecting plate 3 is connected to the conducting column 4, and the other end of the connecting plate 3 is provided with a threaded hole 5 and is threadedly connected to the rod portion of the special-shaped bolt 2 through the threaded hole 5.

[0027] The three-phase connection structures are respectively connected to the A-phase busbar, B-phase busbar and C-phase busbar of the upper level. In the embodiment of the present utility model, the head of the special-shaped bolt 2 can be installed and disassembled by rotating 90 degrees clockwise or counterclockwise within the C-shaped structure of the special-shaped busbar 1. Specifically, the cross-section of the inner wall of the C-shaped structure and the cross-section of the head of the special-shaped bolt 2 are trapezoidal structures with matching dimensions.

[0028] As Figure 2 shown, the overall shape of the special-shaped busbar 1 is a C-shaped structure, the inner wall is a trapezoidal structure, and there is an opening on the right side. The head of the special-shaped bolt 2 is slidably clamped inside the special-shaped busbar 1, and the rod portion extends out from the opening on the right side and is threadedly connected to the connecting plate 3. The cross-section of the head of the special-shaped bolt 2 is also a trapezoidal structure, and the dimension is slightly smaller than the dimension of the inner wall of the special-shaped busbar 1, so that the special-shaped bolt 2 can rotate inside the special-shaped busbar 1.

[0029] In order to make the rotation of the special-shaped bolt 2 smoother, as Figure 4As shown, on two inclined surfaces of the head of the special-shaped bolt 2 with a trapezoidal structure, adjacent flat surfaces 7 and arc surfaces 8 are formed centrosymmetrically. The flat surface 7 is perpendicular to the side surface of the head of the special-shaped bolt 2, and the arc surface 8 is arc-shaped and transitions towards the side surface of the head of the special-shaped bolt 2. The edge of the arc surface forms a fillet structure 9 towards the side surface of the special-shaped bolt 2.

[0030] The cross-section of the head of the special-shaped bolt 2 is of a trapezoidal structure. The two side surfaces are vertical, and the two inclined surfaces are respectively divided into two regions. One region is the flat surface 7, and the other region is the arc surface 8. The function of the arc surface 8 is to enable the top surface of the head of the special-shaped bolt 2 to avoid the inner wall structure of the special-shaped busbar 1 when the head of the special-shaped bolt 2 axially rotates inside the special-shaped busbar 1, so that the rotation of the special-shaped bolt 2 is not blocked. Similarly, the function of the fillet structure 9 is to enable the edge of the head of the special-shaped bolt 1 to avoid the inner wall structure of the special-shaped busbar 1 when the head of the special-shaped bolt 2 axially rotates inside the special-shaped busbar 1, so that the rotation of the special-shaped bolt 2 is not blocked.

[0031] In order to limit the rotation of the special-shaped bolt 2, as Figure 5 shown, at the connection between the head and the rod of the special-shaped bolt 2, two groups of clamping portions 10 and sliding portions 11 that match the opening of the C-shaped structure are formed. The two groups of clamping portions 10 and sliding portions 11 are centrosymmetric. The clamping portion 10 has a right-angle structure, and the sliding portion 11 has an arc-shaped sliding surface. The clamping portion 10 and the flat surface are in the same quarter region of the axis of the special-shaped bolt 2, and the sliding portion 11 and the arc surface are in the same quarter region of the axis of the special-shaped bolt 2.

[0032] Taking Figure 5 the state shown as a reference, when the special-shaped bolt 2 is slidably clamped inside the special-shaped busbar 1, the two centrosymmetric clamping portions 10 respectively abut against the upper and lower edges of the opening of the C-shaped structure of the special-shaped busbar 1, so that the special-shaped bolt 2 can only rotate counterclockwise by 90 degrees and is limited from further rotation after rotating 90 degrees. When disassembling or installing the special-shaped bolt 2, the clamping portion 10 abutting against the upper and lower edges of the opening of the C-shaped structure will give the operator a hint of rotating in place, which is convenient for taking out the special-shaped bolt 2.

[0033] In order to make the installation of the connecting plate 3 and the special-shaped busbar 1 more stable and reduce shaking, limiting edges 6 are respectively formed on both sides of the threaded hole 5. The widths of the limiting edges 6 on both sides match the width of the opening of the C-shaped structure.

[0034] When the connecting plate 3 is connected to the special-shaped busbar 1 through the special-shaped bolt 2, the limiting cold 6 is clamped inside the opening of the C-shaped structure of the special-shaped busbar 1 to limit the overall shaking of the connecting plate 3.

[0035] The top surface of the special-shaped bolt 2 is provided with a groove, and a ball 12 is slidably installed in the groove through a spring. A part of the spherical surface of the ball 12 protrudes from the top surface of the special-shaped bolt 2.

[0036] The ball 12 can be compressed back into the groove and protrudes from the top of the special-shaped bolt 2 when not compressed. After the head of the special-shaped bolt 2 extends into the special-shaped busbar 1, the ball 12 is compressed back into the groove. Rotate the head of the special-shaped bolt 2 to make it clamped inside the special-shaped busbar 1. Release the special-shaped bolt 2 to make the ball 12 pop out and abut against the inner wall of the special-shaped busbar 1, so that the bottom surface of the head of the special-shaped bolt 2 fits against the inner wall of the special-shaped busbar 1, which is convenient for fixing the position of the special-shaped bolt 2 inside the special-shaped busbar 1.

[0037] A straight groove 13 matching the size of the flat screwdriver bit is provided at the end face of the rod part of the special-shaped bolt 2.

[0038] Such as Figure 5 、 7 As shown in, after the special-shaped bolt 2 is clamped inside the special-shaped busbar 1, when the special-shaped bolt 2 needs to be disassembled, insert the flat screwdriver bit of the screwdriver into the straight groove 13 and rotate the special-shaped bolt 2 counterclockwise to a position of 90 degrees to make the head of the special-shaped bolt 2 horizontal, and then take out the special-shaped bolt 2.

[0039] In the embodiment of the present utility model, an avoidance position is provided around the threaded hole 5 on the back surface of the connecting plate 3 forming the limiting edge 6, which is convenient for the flat screwdriver bit of the screwdriver to be inserted into the straight groove 13.

[0040] In order to connect and fix more circuit breakers, fuses or switches, the embodiment of the present utility model further includes multiple groups of sub-connection structures, and each group of sub-connection structures includes a special-shaped bolt 2, a connecting plate 3 and a conductive column 4.

[0041] When the special-shaped busbar 1 is horizontally installed and three special-shaped busbars 1 are arranged vertically in sequence, the lengths of the connecting plates 3 in each group of sub-connection structures are different. The bottom parts of the connecting plates 3 in each group of sub-connection structures are respectively connected to the three special-shaped busbars 1 from top to bottom through the special-shaped bolts 2, and the tops of the connecting plates 3 are flush and connected to the conductive columns 4.

[0042] The embodiment of the present utility model also provides an implementation method of the above-mentioned special-shaped busbar and sub-busbar, including the following steps:

[0043] Step 1: Fix three special-shaped busbars 1 in sequence in the power distribution equipment to form an A-phase busbar, a B-phase busbar and a C-phase busbar.

[0044] Step 2: Install special-shaped bolts 2 in the C-shaped structures of the three special-shaped busbars 1 respectively.

[0045] Step 3: Threadedly connect one end of each special-shaped bolt 2 to the connecting plate 3;

[0046] Step 4: The other end of the connecting plate 3 is connected to the incoming line ends of the circuit breaker 01, fuse or switch through the conductive column 4.

[0047] In the above steps, before installing the special-shaped bolt 2, the special-shaped bolt 2 can be threadedly connected to the connecting plate 3 until it is less than the last quarter turn, then the special-shaped bolt 2 is inserted into the special-shaped busbar 1, aligning the limiting edge 6 of the connecting plate 3 with the opening of the C-shaped structure of the special-shaped busbar 1, and then rotating 90° so that the special-shaped bolt 2 is clamped in the special-shaped busbar 1. At the same time, the limiting edge 6 of the connecting plate 3 is clamped into the opening of the C-shaped structure.

[0048] In order to adapt to the circuit breaker 01 with different incoming line end spacings, the spacing of the connecting plate 3 can be adjusted accordingly. Squeeze the special-shaped bolt 2 into the interior of the special-shaped busbar 1 to retract the ball 12 into the groove, separate the bottom surface of the head of the special-shaped bolt 2 from the inner wall of the special-shaped busbar 1, and then translate the special-shaped bolt 2 to adjust the spacing of the connecting plate 3. After the adjustment is completed, loosen the special-shaped bolt 2. Under the action of the spring, the bottom surface of the head of the special-shaped bolt 2 fits against the inner wall of the special-shaped busbar 1, increasing the frictional force between the special-shaped bolt 2 and the special-shaped busbar 1 to fix the position of the special-shaped bolt 2.

[0049] The above are only the 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 shall be included in the protection scope of the present invention.

Claims

1. A special-shaped mother-daughter row, characterized in that, It includes a three-phase connection structure. Each phase of the connection structure includes a special-shaped busbar, a special-shaped bolt, a connecting plate and a conductive column. The cross-section of the special-shaped busbar is a C-shaped structure. The head of the special-shaped bolt is detachable and slidably connected within the C-shaped structure. One end of the connecting plate is connected to the conductive column, and a threaded hole is formed at the other end of the connecting plate and is threadedly connected to the rod portion of the special-shaped bolt through the threaded hole.

2. The special-shaped mother-daughter row according to claim 1, characterized in that, Limit ribs are respectively formed on both sides of the threaded hole, and the widths of the limit ribs on both sides match the width of the opening of the C-shaped structure.

3. The special-shaped mother-and-son row according to claim 1, characterized in that The cross-section of the inner wall of the C-shaped structure and the cross-section of the head of the special-shaped bolt are trapezoidal structures with matching dimensions.

4. The special-shaped mother-daughter row according to claim 3, characterized in that, On the two inclined surfaces of the head of the special-shaped bolt in a trapezoidal structure, adjacent flat surfaces and arc surfaces are formed in central symmetry. The flat surface is perpendicular to the side surface of the head of the special-shaped bolt, the arc surface is arc-shaped and transitions to the side surface of the head of the special-shaped bolt, and the edge of the arc surface forms a rounded corner structure towards the side surface of the special-shaped bolt.

5. The special-shaped mother-daughter row according to claim 4, characterized in that, Two sets of clamping portions and sliding portions that match the opening of the C-shaped structure are formed at the connection between the head and the rod portion of the special-shaped bolt. The two sets of clamping portions and sliding portions are in central symmetry. The clamping portion has a right-angle structure, the sliding portion has an arc-shaped sliding surface, the clamping portion and the flat surface are located in the same quarter region along the axis of the special-shaped bolt, and the sliding portion and the arc surface are located in the same quarter region along the axis of the special-shaped bolt.

6. The special-shaped mother-daughter row according to claim 1, wherein A groove is formed on the top surface of the special-shaped bolt, and a ball is slidably installed in the groove through a spring, and a part of the spherical surface of the ball protrudes from the top surface of the special-shaped bolt.

7. The special-shaped mother and child row according to claim 1, characterized in that, A straight groove that matches the size of a flat screwdriver bit is formed on the end face of the rod portion of the special-shaped bolt.

8. The special-shaped mother-daughter row according to claim 1, wherein It further includes multiple sets of sub-connection structures. Each set of sub-connection structures includes the special-shaped bolt, the connecting plate and the conductive column.

Images