Telescopic joint transformer copper bar

Abstract

The utility model discloses an expansion joint transformer copper bar, which comprises a copper bar wire and insulating strips, the top end and the bottom end of the copper bar wire are integrally connected with the insulating strips, the insulating strips are hollow, shielding mesh belts are welded on the inner walls of the insulating strips, and copper bar conductors are arranged in gaps of the shielding mesh belts. The two sides of the copper bar conductor are respectively provided with a positioning block. According to the expansion joint transformer copper bar, the copper bar wires, the copper bar conductors, the reinforcing screws, the wedge-shaped grooves and the positioning corners are arranged, so that the connection between the copper bar wires and the copper bar conductors is tighter due to the wedge-shaped fixing structures in a high-load and high-vibration environment, the falling caused by vibration or thermal expansion in long-time operation is effectively prevented, and the service life of the expansion joint transformer copper bar is prolonged. The copper bar conductors can be rapidly replaced or maintained through the reinforcing screws, electrical connection is ensured, the installation structure of the copper bar is optimized, the long-term stability and reliability of the copper bar in the expansion joint transformer are guaranteed, and the problem that the stability of the installation structure is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of copper bars of expansion joint transformers, in particular to a copper bar of expansion joint transformers. Background Art

[0002] The expansion joint transformer is a special type of transformer that is mainly used for voltage conversion and regulation in power systems. One of its core components is the copper busbar, which is used to transmit and distribute electrical energy inside the transformer. The design and installation of the copper busbar directly affects the efficiency and safety of the transformer. In the expansion joint transformer, poor connection or damage to the copper busbar can lead to energy loss and even power system failure.

[0003] In the existing expansion joint transformer design, the copper busbar has some defects in installation and stability. Common fixed installation methods often cannot effectively cope with the vibration and thermal expansion during long-term operation, causing the copper busbar to loosen or fall off easily. This structural instability will affect the electrical connection quality of the copper busbar, and thus affect the overall performance of the transformer.

[0004] Therefore, it is necessary to design a copper bar of an expansion joint transformer to solve the above-mentioned technical defects. Utility Model Content

[0005] The utility model aims to provide a copper bar of an expansion joint transformer to solve the problem of poor stability of the installation structure proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a copper busbar of an expansion joint transformer, comprising a copper busbar wire and an insulating strip, the top and bottom ends of the copper busbar wire are integrally connected with the insulating strip, the insulating strip is hollow inside, the inner wall of the insulating strip is welded with a shielding mesh belt, a copper busbar conductor is installed in the gap of the shielding mesh belt, positioning blocks are respectively arranged on both sides of the copper busbar conductor, reinforcing screws are respectively fixedly connected between the positioning blocks and the insulating strip, the insulating strip is respectively provided with wedge-shaped grooves on both sides of the edge, and the two corners of the copper busbar conductor close to the wedge-shaped groove are processed into positioning angles, and the wedge-shaped groove and the positioning angle are embedded with each other.

[0007] Preferably, a mounting seat is sleeved on the outside of the insulating strip, a plurality of mounting holes are provided in the mounting seat, fixing plates are sleeved on the left and right sides of the mounting seat respectively, and fixing bolts are installed between the fixing plates and the mounting seat.

[0008] Preferably, the outer sides of the fixing plates are processed with side guards, and the side guards are integrally bent and formed with the fixing plates.

[0009] Preferably, two groups of the fixing plates are respectively arranged on the left and right sides of the mounting seat, and the fixing plates are symmetrically distributed about the vertical center line of the mounting seat.

[0010] Preferably, the insulating strip is flush with the side edge of the copper bus wire, and the middle section of the copper bus wire is curved.

[0011] Preferably, the inner layer of the copper busbar is coated with a polytetrafluoroethylene film, and the thickness of the polytetrafluoroethylene film is less than 1 mm of the copper busbar.

[0012] Preferably, the middle layer of the copper busbar is coated with a silicone rubber sheath, and the silicone rubber is an elastic hollow sleeve.

[0013] Preferably, the outer layer of the copper busbar is a polyethylene outer film, and the outer surface of the polyethylene outer film is coated with a reflective material.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the copper bar of the expansion joint transformer not only prevents the conductor from falling off, ensures the stability of the electrical connection, prevents the input and output ends of the copper bar from being deformed, ensures the efficiency of energy transmission, but also improves the performance of the transformer under various working conditions;

[0015] (1) By providing copper busbars, copper busbar conductors, reinforcing screws, wedge-shaped grooves, and positioning angles, the wedge-shaped fixing structure makes the connection between the copper busbars and the copper busbar conductors tighter in a high-load and high-vibration environment, effectively preventing them from falling off due to vibration or thermal expansion during long-term operation. The reinforcing screws can be used to quickly replace or maintain the copper busbar conductors, ensure electrical connection, optimize the copper busbar installation structure, and ensure the long-term stability and reliability of the copper busbar in the expansion joint transformer;

[0016] (2) The copper busbar is installed in the transformer by providing a mounting seat, mounting holes, and fixing bolts, and installing mounting seats on the outside of the upper and lower copper busbar conductors, and fixing the mounting seats with the mounting holes. At the input and output ends of the transformer, the installation of fixing blocks provides additional physical support to prevent the copper busbar from being deformed or damaged under long-term use and mechanical stress, thereby ensuring the efficiency of energy transmission and reducing the risk of electrical failure caused by deformation;

[0017] (3) A three-layer protection design is set up on the outside of the copper busbar by arranging a polytetrafluoroethylene film, a silicone rubber coating, and a polyethylene outer film. The inner layer of polytetrafluoroethylene film can protect the copper busbar from corrosion and high temperature damage. The second layer of silicone rubber coating increases the flexibility and vibration resistance of the copper busbar. During the operation of the transformer, the copper busbar will inevitably be subjected to various mechanical stresses, such as vibration and distortion. The silicone rubber coating can absorb these stresses and reduce physical damage to the copper busbar. The outermost polyethylene film enhances the protection against the external environment, resists the erosion of dust, moisture and other environmental factors, and improves the performance of the transformer under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a front view enlarged structural diagram of the copper busbar of the utility model;

[0021] Figure 4 For the utility model Figure 3 The enlarged structural diagram is shown in the middle view;

[0022] Figure 5 This is a schematic diagram of the layered structure of the copper busbar of the present invention.

[0023] In the figure: 1. Copper busbar; 2. Insulation strip; 3. Mounting seat; 4. Mounting hole; 5. Fixing plate; 6. Side rib; 7. Fixing bolt; 8. Shielding mesh belt; 9. Copper busbar conductor; 10. Reinforcement screw; 11. Positioning block; 12. Wedge-shaped groove; 13. Positioning angle; 14. Polytetrafluoroethylene film; 15. Silicone rubber coating; 16. Polyethylene outer film. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-5 A copper busbar of an expansion joint transformer comprises a copper busbar 1 and an insulating strip 2, the top and bottom of the copper busbar 1 are integrally connected with the insulating strip 2, the insulating strip 2 is hollow, the inner wall of the insulating strip 2 is welded with a shielding mesh belt 8, a copper busbar conductor 9 is installed in the gap of the shielding mesh belt 8, positioning blocks 11 are respectively arranged on both sides of the copper busbar conductor 9, reinforcing screws 10 are respectively fixedly connected between the positioning blocks 11 and the insulating strip 2, wedge-shaped grooves 12 are respectively provided on both sides of the edge of the insulating strip 2, the two corners of the copper busbar conductor 9 close to the wedge-shaped groove 12 are processed into positioning angles 13, the wedge-shaped groove 12 and the positioning angle 13 are mutually embedded, a mounting seat 3 is sleeved on the outside of the insulating strip 2, a plurality of mounting holes 4 are provided in the mounting seat 3, fixing plates 5 are respectively sleeved on the left and right sides of the mounting seat 3, fixing bolts 7 are assembled between the fixing plate 5 and the mounting seat 3;

[0026] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in a high-load and high-vibration environment, the wedge-shaped fixing structure makes the connection between the copper busbar 1 and the copper busbar conductor 9 tighter, effectively preventing the copper busbar conductor 9 from falling off due to vibration or thermal expansion during long-term operation. The copper busbar conductor 9 can be quickly replaced or maintained by reinforcing the screws 10 to ensure electrical connection.

[0027] Embodiment 2: The outer sides of the fixing plates 5 are processed with side ribs 6, which are bent and formed integrally with the fixing plates 5. Two groups of fixing plates 5 are respectively provided on the left and right sides of the mounting seat 3, and the fixing plates 5 are symmetrically distributed about the vertical center line of the mounting seat 3;

[0028] Specifically, Figure 1 and Figure 2 As shown, a mounting base 3 is installed outside the upper and lower groups of copper busbar conductors 9, and the copper busbar is fixed to the mounting base 3 through the mounting holes 4, so that the copper busbar is installed in the transformer. At the input and output ends of the transformer, the installation of the fixing block provides additional physical support to prevent the copper busbar from being deformed or damaged under long-term use and mechanical stress, thereby ensuring the efficiency of energy transmission.

[0029] Embodiment 3: The insulating strip 2 is flush with the side of the copper busbar 1, the middle section of the copper busbar 1 is curved, the inner layer of the copper busbar 1 is coated with a polytetrafluoroethylene film 14, the thickness of the polytetrafluoroethylene film 14 is less than 1 mm of the copper busbar, the middle layer of the copper busbar 1 is coated with a silicone rubber coating 15, the silicone rubber is an elastic hollow sleeve, the outer layer of the copper busbar 1 is a polyethylene outer film 16, and the outer surface of the polyethylene outer film 16 is coated with a reflective material;

[0030] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, a three-layer protection design is arranged on the outside of the copper busbar 1. The inner polytetrafluoroethylene film 14 can protect the copper busbar from corrosion and high temperature damage. The second layer of silicone rubber coated outer skin 15 increases the flexibility and vibration resistance of the copper busbar 1. During the operation of the transformer, the copper busbar will inevitably be subjected to various mechanical stresses, such as vibration and distortion. The silicone rubber coated outer skin 15 can absorb these stresses and reduce physical damage to the copper busbar. The outermost polyethylene outer film 16 enhances the protection against the external environment and resists the erosion of dust, moisture and other environmental factors.

[0031] Working principle: In a high-load and high-vibration environment, the wedge-shaped fixing structure makes the connection between the copper busbar 1 and the copper busbar conductor 9 tighter, effectively preventing the copper busbar conductor 9 from falling off due to vibration or thermal expansion during long-term operation. The copper busbar conductor 9 can be quickly replaced or maintained by reinforcing the screws 10 to ensure electrical connection. The mounting base 3 is installed outside the upper and lower groups of copper busbar conductors 9, and is fixed to the mounting base 3 through the mounting holes 4 to install the copper busbar in the transformer. At the input and output ends of the transformer, the installation of the fixing block provides additional physical support to prevent the copper busbar from being deformed or damaged under long-term use and mechanical stress. The copper busbar 1 is provided with a three-layer protection design on the outside. The inner polytetrafluoroethylene film 14 can protect the copper busbar from corrosion and high temperature damage. The second layer of silicone rubber coated outer skin 15 increases the flexibility and vibration resistance of the copper busbar 1. During the operation of the transformer, the copper busbar will inevitably be subjected to various mechanical stresses, such as vibration and distortion. The silicone rubber coated outer skin 15 can absorb these stresses and reduce physical damage to the copper busbar. The outermost polyethylene outer film 16 enhances the protection against the external environment, resists the erosion of dust, moisture and other environmental factors, and improves the performance of the transformer under various working conditions.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A copper busbar of an expansion joint transformer, comprising a copper busbar wire (1) and an insulating strip (2), characterized in that: The top and bottom ends of the copper busbar (1) are integrally connected with an insulating strip (2), the insulating strip (2) is hollow, the inner wall of the insulating strip (2) is welded with a shielding mesh belt (8), a copper busbar conductor (9) is installed in the gap of the shielding mesh belt (8), positioning blocks (11) are respectively arranged on both sides of the copper busbar conductor (9), and reinforcing screws (10) are respectively fixedly connected between the positioning blocks (11) and the insulating strip (2), the insulating strip (2) is respectively provided with a wedge-shaped groove (12) on both sides of the edge, and the two corners of the copper busbar conductor (9) close to the wedge-shaped groove (12) are processed into positioning angles (13), and the wedge-shaped groove (12) and the positioning angle (13) are interlocked.

2. The copper bar of an expansion joint transformer according to claim 1, characterized in that: The insulating strip (2) is sleeved with a mounting seat (3) on the outside, and a plurality of mounting holes (4) are provided in the mounting seat (3). The mounting seat (3) is sleeved with fixing plates (5) on the left and right sides respectively, and fixing bolts (7) are installed between the fixing plates (5) and the mounting seat (3).

3. The copper bar of an expansion joint transformer according to claim 2, characterized in that: The outer sides of the fixing plates (5) are processed with side guard edges (6), and the side guard edges (6) and the fixing plates (5) are integrally bent and formed.

4. The copper bar of an expansion joint transformer according to claim 2, characterized in that: Two groups of the fixing plates (5) are respectively arranged on the left and right sides of the mounting seat (3), and the fixing plates (5) are symmetrically distributed about the vertical center line of the mounting seat (3).

5. The copper bar of an expansion joint transformer according to claim 1, characterized in that: The insulating strip (2) and the side edges of the copper busbar (1) are flush, and the middle section of the copper busbar (1) is in an arc shape.

6. The copper bar of an expansion joint transformer according to claim 1, characterized in that: The inner layer of the copper busbar (1) is coated with a polytetrafluoroethylene film (14), and the thickness of the polytetrafluoroethylene film (14) is less than 1 mm of the copper busbar.

7. The copper bar of an expansion joint transformer according to claim 1, characterized in that: The middle layer of the copper busbar (1) is coated with a silicone rubber coating (15), and the silicone rubber is an elastic hollow sleeve.

8. The copper bar of an expansion joint transformer according to claim 1, characterized in that: The outer layer of the copper busbar (1) is a polyethylene outer film (16), and the outer surface of the polyethylene outer film (16) is coated with a reflective material.

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