A box transformer outgoing copper bar fastening device
By designing a fastening device for the copper busbars of the transformer substation, the problem of unreliable copper busbar fixation was solved by using clamping components and insulating pads, achieving stable fixation of the copper busbars, preventing stress on the transformer ends, and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAXIANG XIANGNENG TECHNOLOGY CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-16
AI Technical Summary
The existing transformer substation's connecting copper busbars lack fixed supports or the supports are not secure, causing stress on the low-voltage terminals of the transformer, which can easily lead to cracking of the insulation components.
Design a fastening device for the copper busbars of a box-type transformer, including a mounting plate, a connecting rod and a clamping assembly. The copper busbars are clamped by driving bolts using the fixed plate and movable plate of the clamping assembly, and the fixing reliability is improved by combining insulating pads and rolling bearings.
Effectively secures the copper busbars, prevents stress on the transformer terminals, reduces damage to insulation components, and improves equipment stability and safety.
Smart Images
Figure CN224366643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a fastening device for the copper busbars of a box-type transformer. Background Technology
[0002] A transformer is an electrical device that uses the principle of electromagnetic induction to change AC voltage. It mainly consists of a primary coil, a secondary coil, and an iron core. The copper busbar is a component of the transformer and is a low-resistance conductor used for high current transmission. It is usually installed on the low-voltage side of the transformer and connects to other power equipment such as receiving cabinets, capacitor cabinets, or distribution cabinets.
[0003] Existing transformer substations typically have long connecting copper busbars, and most of these busbars lack fixed supports or have insecure supports. This causes the low-voltage terminals of the transformer to bear the tension during installation and the electrodynamic forces during short circuits, frequently leading to stress on the transformer terminals and causing the insulation components to crack. Therefore, this invention proposes a fastening device for the outgoing copper busbars of transformer substations to further secure the copper busbars. Utility Model Content
[0004] The main purpose of this utility model is to provide a fastening device for the copper busbars of a transformer substation, which is used to further fasten the copper busbars.
[0005] To achieve the above objectives, the present invention proposes a copper busbar fastening device for a transformer substation, comprising a mounting plate, a connecting rod, and a clamping assembly. The mounting plate is fixedly connected to the transformer substation. One end of the connecting rod is connected to the mounting plate, and the other end is connected to the clamping assembly, which is used to clamp the copper busbar. The clamping assembly includes a fixed plate, a movable plate, and a first driving bolt. Both the fixed plate and the movable plate are insulating plates. The movable plate includes a second plate, and a first plate and a third plate respectively connected to both ends of the second plate. The second plate slidably passes through the fixed plate, and the first plate and the third plate are located on both sides of the fixed plate. One end of the first driving bolt is rotatably connected to the fixed plate, and the first driving bolt is threaded through the first plate. The central axis of the first driving bolt is parallel to the sliding direction of the second plate relative to the fixed plate. The first driving bolt is used to rotate to drive the first plate to move, thereby driving the third plate closer to or away from the fixed plate, thus clamping the copper busbar.
[0006] Preferably, the copper busbar fastening device for the transformer substation further includes a movable block and a second driving bolt; the movable block is an insulating block; the fixed plate has a through-hole and a slot; the second plate is slidably fitted through the through-hole; the movable block is slidably disposed in the slot, and one end of the movable block extends beyond the outer wall of the fixed plate; the second driving bolt is threaded through the fixed plate; one end of the second driving bolt extends into the slot and is rotatably connected to the movable block; the central axis of the second driving bolt is parallel to the sliding direction of the movable block relative to the fixed plate; the second driving bolt is used to rotate to drive the movable block to move closer to the second plate to clamp the copper busbar.
[0007] Preferably, a first slider and a second slider are respectively provided on opposite sides of the movable block, and a first groove and a second groove are respectively provided on opposite inner walls of the slot, with the first groove parallel to the second groove; the first slider is slidably embedded in the first groove, and the second slider is slidably embedded in the second groove.
[0008] Preferably, the fixed plate has a first insulating pad on the side that abuts against the copper busbar, the third plate has a second insulating pad on the side that abuts against the copper busbar, the second plate has a third insulating pad on the side that abuts against the copper busbar, and the movable block has a fourth insulating pad on the side that abuts against the copper busbar.
[0009] Preferably, the fixing plate includes a fourth plate and a fifth plate perpendicular to each other; the first plate and the third plate are both parallel to the fourth plate and are located on opposite sides of the fourth plate; the second plate is perpendicular to the fourth plate; the movable block includes an abutting surface for abutting the copper busbar, the abutting surface being perpendicular to the fourth plate; the connecting rod is connected to the fourth plate or the fifth plate.
[0010] Preferably, a first connecting seat is provided on the fourth plate or the fifth plate, and a second connecting seat is provided in the middle of the mounting plate. The two ends of the connecting rod are respectively fixedly connected to the first connecting seat and the second connecting seat by bolts. A plurality of connecting holes are provided through the mounting plate, and fixing bolts pass through the connecting holes to fix the mounting plate to the transformer substation.
[0011] Preferably, a first rolling bearing is embedded in the fixed plate, and one end of the first driving bolt is fixedly connected to the inner ring of the first rolling bearing so that one end of the first driving bolt is rotatably connected to the fixed plate; a second rolling bearing is embedded in the movable block, and one end of the second driving bolt is fixedly connected to the inner ring of the second rolling bearing so that one end of the second driving bolt is rotatably connected to the movable block.
[0012] Preferably, a first knob is provided at the end of the first driving bolt away from the fixed plate; and a second knob is provided at the end of the second driving bolt away from the movable block.
[0013] Preferably, the third plate and the fourth plate are respectively used to abut against the two wider sidewalls of the copper busbar, and the second plate and the movable block are respectively used to abut against the two narrower sidewalls of the copper busbar.
[0014] Preferably, the mounting plate is a rectangular plate, and the connecting holes are provided at least at the four corners of the mounting plate.
[0015] In the technical solution of this utility model, both the fixed plate and the movable plate are insulating plates. The first plate and the third plate are respectively connected to the two ends of the second plate. The second plate slides through the fixed plate, and the first plate and the third plate are respectively located on both sides of the fixed plate. The first driving bolt is rotatably connected to the fixed plate and threaded through the first plate. Rotating the first driving bolt can drive the first plate away from the fixed plate, thereby driving the third plate closer to the fixed plate, thus clamping the copper busbar located between the fixed plate and the third plate. Since the clamping assembly can be fixed to the mounting plate through the connecting rod, and the mounting plate can be fixed to the transformer box, the copper busbar can be further fixed by the clamping of the clamping assembly. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a top view of the first embodiment of the fastening device for the copper busbars of the transformer outlet of this utility model.
[0018] Figure 2 This is a left-side structural schematic diagram of the first embodiment of the copper busbar fastening device for the output line of the transformer of this utility model.
[0019] Figure 3 This is a schematic diagram of the fixing plate of the fastening device for the copper busbars of the transformer outlet of the present invention.
[0020] Figure 4 This is a top view of the second embodiment of the copper busbar fastening device for the output line of the transformer of this utility model.
[0021] Explanation of icon numbers:
[0022] 1-Fixed plate; 101-Pass through port; 102-Slot; 103-First slide groove; 104-Second slide groove; 2-Modible plate; 3-Modible block; 301-First slider; 302-Second slider; 4-First drive bolt; 5-Second drive bolt; 6-First insulating pad; 7-Second insulating pad; 8-Third insulating pad; 9-Fourth insulating pad; 10-Connecting rod; 11-First connecting seat; 12-Mounting plate; 13-Second connecting seat; 14-Fixed bolt; 15-Copper busbar.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0026] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] This utility model proposes a fastening device for the copper busbars of a box-type transformer.
[0030] Please refer to Figures 1 to 4 The transformer output copper busbar fastening device includes a mounting plate 12, a connecting rod 10, and a clamping assembly. The mounting plate 12 is fixedly connected to the transformer. One end of the connecting rod 10 is connected to the mounting plate 12, and the other end is connected to the clamping assembly. The clamping assembly is used to clamp the copper busbar 15. The clamping assembly includes a fixed plate 1, a movable plate 2, and a first driving bolt 4. Both the fixed plate 1 and the movable plate 2 are insulating plates. The movable plate 2 includes a second plate, and a first plate and a third plate respectively connected to both ends of the second plate. The second plate slides through the fixed plate 1, and the first plate and the third plate are located on both sides of the fixed plate 1. One end of the first driving bolt 4 is rotatably connected to the fixed plate 1, and the first driving bolt 4 is threaded through the first plate. The central axis of the first driving bolt 4 is parallel to the sliding direction of the second plate relative to the fixed plate 1. The first driving bolt 4 is used to rotate to drive the first plate to move, thereby driving the third plate to move closer to or away from the fixed plate 1, thus clamping the copper busbar 15.
[0031] In the technical solution of this utility model, both the fixed plate 1 and the movable plate 2 are insulating plates. The first plate and the third plate are respectively connected to the two ends of the second plate. The second plate slides through the fixed plate 1, and the first plate and the third plate are respectively located on both sides of the fixed plate 1. The first driving bolt 4 is rotatably connected to the fixed plate 1 and threaded through the first plate. Rotating the first driving bolt 4 can drive the first plate away from the fixed plate 1, and then drive the third plate closer to the fixed plate 1, thereby clamping the copper busbar 15 located between the fixed plate 1 and the third plate. Since the clamping assembly can be fixed to the mounting plate 12 through the connecting rod 10, and the mounting plate 12 can be fixed to the transformer box (such as the transformer body or box), the copper busbar 15 can be further fixed by the clamping of the clamping assembly.
[0032] Specifically, the first plate and the third plate are respectively vertically disposed at both ends of the second plate. The side wall of the fixing plate 1 that abuts against the copper busbar 15 and the side wall of the third plate that abuts against the copper busbar 15 are parallel to each other so as to approach each other and thus clamp the opposite side walls of the copper busbar 15.
[0033] The copper busbar fastening device for the transformer substation also includes a movable block 3 and a second driving bolt 5; the movable block 3 is an insulating block; the fixed plate 1 has a through-hole 101 and a slot 102; the second plate is slidably fitted through the through-hole 101; the movable block 3 is slidably disposed in the slot 102, and one end of the movable block 3 extends beyond the outer wall of the fixed plate 1; the second driving bolt 5 is threaded through the fixed plate 1; one end of the second driving bolt 5 extends into the slot 102 and is rotatably connected to the movable block 3; the central axis of the second driving bolt 5 is parallel to the sliding direction of the movable block 3 relative to the fixed plate 1; the second driving bolt 5 is used to rotate to drive the movable block 3 to move closer to the second plate to clamp the copper busbar 15.
[0034] Rotating the second drive bolt 5 drives the movable block 3 to slide along the slot 102 and move closer to the second plate, thereby clamping the other two opposing sidewalls of the copper busbar 15. Specifically, the sidewall of the movable block 3 that abuts against the copper busbar 15 is parallel to the sidewall of the second plate that abuts against the copper busbar 15; the through-hole 101 is a rectangular opening, and the two opposing sidewalls of the second plate slide and fit into contact with the two opposing inner walls of the through-hole 101 respectively, to prevent the movable plate 2 from rotating with the rotation of the first drive bolt 4; the length of the movable block 3 extending beyond the outer wall of the fixed plate 1 is less than the thickness of the copper busbar 15.
[0035] The movable block 3 has a first slider 301 and a second slider 302 respectively on opposite sides. The slot 102 has a first groove 103 and a second groove 104 respectively on opposite inner walls, with the first groove 103 parallel to the second groove 104. The first slider 301 is slidably fitted into the first groove 103, and the second slider 302 is slidably fitted into the second groove 104. This ensures that the movable block 3 can slide along the extension direction of the slot 102. Specifically, the movable block 3, the first slider 301, and the second slider 302 are all rectangular blocks.
[0036] Furthermore, a first insulating pad 6 is provided on the side of the fixed plate 1 that abuts against the copper busbar 15, a second insulating pad 7 is provided on the side of the third plate that abuts against the copper busbar 15, a third insulating pad 8 is provided on the side of the second plate that abuts against the copper busbar 15, and a fourth insulating pad 9 is provided on the side of the movable block 3 that abuts against the copper busbar 15. The insulating pads facilitate electrical isolation and prevent damage to the copper busbar 15. In this embodiment, the first insulating pad 6, the second insulating pad 7, the third insulating pad 8, and the fourth insulating pad 9 are all rubber insulating pads.
[0037] The fixed plate 1 includes a fourth plate and a fifth plate that are perpendicular to each other; the first plate and the third plate are both parallel to the fourth plate and are located on opposite sides of the fourth plate; the second plate is perpendicular to the fourth plate; the movable block 3 includes an abutting surface for abutting the copper busbar 15, the abutting surface being perpendicular to the fourth plate; the connecting rod 10 is connected to the fourth plate or the fifth plate.
[0038] Specifically, the fixing plate 1 is L-shaped; the first driving bolt 4 is rotatably connected to the side of the fourth plate opposite to the fifth plate; both the opening 101 and the slot 102 are opened on the fourth plate; the third plate and the fourth plate are respectively used to abut against the two wider side walls of the copper busbar 15, and the second plate and the movable block 3 are respectively used to abut against the two narrower side walls of the copper busbar 15.
[0039] A first connecting seat 11 is provided on the fourth plate or the fifth plate, and a second connecting seat 13 is provided in the middle of the mounting plate 12. The two ends of the connecting rod 10 are respectively fixedly connected to the first connecting seat 11 and the second connecting seat 13 by bolts. A plurality of connecting holes are provided through the mounting plate 12, and fixing bolts 14 pass through the connecting holes to fix the mounting plate 12 to the transformer.
[0040] The connecting rod 10 is connected to the mounting plate 12 and the clamping assembly via bolts and connecting seats, allowing the connection angle between the connecting rod 10, the mounting plate 12, and the clamping assembly to be adjusted, thus facilitating the installation of the fastening device in different positions. Specifically, the mounting plate 12 is a rectangular plate, and the connecting holes are provided at least at the four corners of the mounting plate 12.
[0041] Please refer to Figure 1 and Figure 4 ,exist Figure 1 In the illustrated embodiment, the first connecting seat 11 is disposed on the fifth plate. Figure 4 In the illustrated embodiment, the first connecting seat 11 is disposed on the fourth plate. This arrangement allows the fastening device to adapt to different installation orientations of the copper busbar 15.
[0042] In this embodiment, a first rolling bearing is embedded in the fixed plate 1, and one end of the first driving bolt 4 is fixedly connected to the inner ring of the first rolling bearing so that one end of the first driving bolt 4 is rotatably connected to the fixed plate 1; a second rolling bearing is embedded in the movable block 3, and one end of the second driving bolt 5 is fixedly connected to the inner ring of the second rolling bearing so that one end of the second driving bolt 5 is rotatably connected to the movable block 3.
[0043] A first knob is provided at the end of the first driving bolt 4 away from the fixed plate 1; a second knob is provided at the end of the second driving bolt 5 away from the movable block 3. In this embodiment, both the first knob and the second knob are cross knobs.
[0044] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A fastening device for the copper busbars of a transformer substation, characterized in that, The system includes a mounting plate (12), a connecting rod (10), and a clamping assembly. The mounting plate (12) is fixedly connected to the transformer substation. One end of the connecting rod (10) is connected to the mounting plate (12), and the other end is connected to the clamping assembly. The clamping assembly is used to clamp copper busbars (15). The clamping assembly includes a fixed plate (1), a movable plate (2), and a first drive bolt (4). Both the fixed plate (1) and the movable plate (2) are insulating plates. The movable plate (2) includes a second plate, and a first plate and a third plate respectively connected to both ends of the second plate. The first plate and the third plate are respectively located on both sides of the fixed plate (1); one end of the first driving bolt (4) is rotatably connected to the fixed plate (1), and the first driving bolt (4) is threaded through the first plate; the central axis of the first driving bolt (4) is parallel to the sliding direction of the second plate relative to the fixed plate (1); the first driving bolt (4) is used to rotate to drive the first plate to move, thereby driving the third plate to move closer to or away from the fixed plate (1), thereby clamping the copper busbar (15).
2. The fastening device for the copper busbars of the transformer output line according to claim 1, characterized in that, It also includes a movable block (3) and a second driving bolt (5); the movable block (3) is an insulating block; the fixed plate (1) has a through-hole (101) and a slot (102); the second plate is slidably fitted through the through-hole (101); the movable block (3) is slidably disposed in the slot (102), and one end of the movable block (3) extends beyond the outer wall of the fixed plate (1); the second driving bolt (5) is threaded through the fixed plate (1); one end of the second driving bolt (5) extends into the slot (102) and is rotatably connected to the movable block (3); the central axis of the second driving bolt (5) is parallel to the sliding direction of the movable block (3) relative to the fixed plate (1); the second driving bolt (5) is used to rotate to drive the movable block (3) to move closer to the second plate to clamp the copper busbar (15).
3. The fastening device for the copper busbars of the transformer output line according to claim 2, characterized in that, The movable block (3) is provided with a first slider (301) and a second slider (302) on opposite sides. The slot (102) is provided with a first groove (103) and a second groove (104) on opposite inner walls. The first groove (103) is parallel to the second groove (104). The first slider (301) is slidably embedded in the first groove (103), and the second slider (302) is slidably embedded in the second groove (104).
4. The fastening device for the copper busbars of the transformer output line according to claim 2, characterized in that, The fixed plate (1) has a first insulating pad (6) on one side for abutting the copper busbar (15), the third plate has a second insulating pad (7) on one side for abutting the copper busbar (15), the second plate has a third insulating pad (8) on one side for abutting the copper busbar (15), and the movable block (3) has a fourth insulating pad (9) on one side for abutting the copper busbar (15).
5. The fastening device for the copper busbars of the transformer output line according to claim 2, characterized in that, The fixed plate (1) includes a fourth plate and a fifth plate that are perpendicular to each other; the first plate and the third plate are parallel to the fourth plate and are located on both sides of the fourth plate respectively; the second plate is perpendicular to the fourth plate; the movable block (3) includes an abutting surface for abutting the copper busbar (15), the abutting surface being perpendicular to the fourth plate; the connecting rod (10) is connected to the fourth plate or the fifth plate.
6. The fastening device for the copper busbars of the transformer output line according to claim 5, characterized in that, A first connecting seat (11) is provided on the fourth plate or the fifth plate, and a second connecting seat (13) is provided in the middle of the mounting plate (12). The two ends of the connecting rod (10) are respectively fixedly connected to the first connecting seat (11) and the second connecting seat (13) by bolts. Multiple connecting holes are provided through the mounting plate (12), and fixing bolts (14) pass through the connecting holes to fix the mounting plate (12) to the transformer.
7. The fastening device for the copper busbars of the transformer output line according to claim 2, characterized in that, The fixed plate (1) is fitted with a first rolling bearing, and one end of the first driving bolt (4) is fixedly connected to the inner ring of the first rolling bearing so that one end of the first driving bolt (4) is rotatably connected to the fixed plate (1); the movable block (3) is fitted with a second rolling bearing, and one end of the second driving bolt (5) is fixedly connected to the inner ring of the second rolling bearing so that one end of the second driving bolt (5) is rotatably connected to the movable block (3).
8. The fastening device for the copper busbars of the transformer outlet as described in claim 2, characterized in that, A first knob is provided at the end of the first drive bolt (4) away from the fixed plate (1); a second knob is provided at the end of the second drive bolt (5) away from the movable block (3).
9. The fastening device for the copper busbars of the transformer output line according to claim 5, characterized in that, The third plate and the fourth plate are respectively used to abut against the two wider sidewalls of the copper busbar (15), and the second plate and the movable block (3) are respectively used to abut against the two narrower sidewalls of the copper busbar (15).
10. The fastening device for the copper busbars of the transformer output line according to claim 6, characterized in that, The mounting plate (12) is a rectangular plate, and the connecting holes are provided at least at the four corners of the mounting plate (12).