Transformer coil outlet copper-aluminum bar

Abstract

The utility model relates to the technical field of copper-aluminum bars, in particular to a transformer coil outlet copper-aluminum bar which comprises a copper-aluminum bar body, a left fixing assembly is connected with the left portion of the upper end of the copper-aluminum bar body in a penetrating mode, and a right fixing assembly is connected with the right portion of the upper end of the copper-aluminum bar body in a penetrating mode. The left part of the lower end of the copper-aluminum busbar body is connected with a left connecting assembly in a penetrating manner, and the right part of the lower end of the copper-aluminum busbar body is connected with a right connecting assembly in a penetrating manner. According to the transformer coil outgoing line copper-aluminum bar, the polyimide thin insulating films are arranged on the upper end face of the upper aluminum layer and the lower end face of the lower aluminum layer, so that reliable insulation protection is provided for the copper-aluminum bar, and the copper-aluminum bar is not damaged in a complex electrical environment of a transformer. The polyimide thin insulating film can effectively prevent short circuit between the copper-aluminum bar and surrounding metal parts or other electrical elements, safety accidents caused by electrical faults are avoided, and safe and stable operation of the transformer and a whole power system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper aluminium row technical field, especially a transformer coil outgoing line copper aluminium row. BACKGROUND

[0002] With the continuous development and upgrading of power system, as the key equipment in the process of power transmission and distribution, the performance and reliability of transformer have been paid more and more attention, and the transformer coil outgoing line copper aluminium row as an important conductive component inside the transformer undertakes the key task of safely and efficiently transmitting the electric energy generated by the coil to the external circuit,

[0003] However, the traditional transformer coil outgoing line copper aluminium row often has poor heat dissipation effect, and when large current passes for a long time, the temperature is easy to rise due to heat accumulation, which not only further increases the resistance loss and reduces the electric energy transmission efficiency, but also accelerates the aging of the insulating material, shortens the service life of the outgoing line row, and even affects the safe and stable operation of the transformer, causes potential electrical faults and safety accidents, at the same time, the traditional transformer coil outgoing line copper aluminium row has the problems of not firm connection with the transformer coil, easy to loosen and large contact resistance, which will cause the increase of energy loss in the process of electric energy transmission, and also cause electric spark due to poor contact, which will cause fire or other safety hazards, seriously affecting the normal operation of the transformer and the reliability of the power system, therefore, we launch a kind of transformer coil outgoing line copper aluminium row. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of transformer coil outgoing line copper aluminium row, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of transformer coil outgoing line copper aluminium row, comprising copper aluminium row main body, the left part of copper aluminium row main body upper end is connected with left fixed component, the right part of copper aluminium row main body upper end is connected with right fixed component, the left fixed component and right fixed component are same structure, the left part of copper aluminium row main body lower end is connected with left connecting component, the right part of copper aluminium row main body lower end is connected with right connecting component, the left connecting component and right connecting component are same structure;

[0007] The copper aluminium row main body includes an upper aluminium layer, the lower end of the upper aluminium layer is fixedly connected with a copper layer, the lower end of the copper layer is fixedly connected with a lower aluminium layer, a plurality of through heat dissipation holes are formed in the middle of the outer surface of the upper aluminium layer, polyimide thin insulating films are arranged on the upper end surface of the upper aluminium layer and the lower end surface of the lower aluminium layer, fixed grooves are formed in the left and right upper ends of the upper aluminium layer, and mounting sleeve holes are formed in the left and right lower ends of the lower aluminium layer.

[0008] Preferably, the middle part of the upper aluminum layer, the middle part of the copper layer, and the middle part of the lower aluminum layer are all set as semi-circles, and a number of the heat dissipation holes are distributed in a ring array at the center of the upper aluminum layer and in a rectangular array.

[0009] By adopting the above technical solution, the aluminum layer above several heat dissipation holes is distributed in a central ring array and in a rectangular array, which greatly increases the contact area between the copper-aluminum busbar and the surrounding air.

[0010] Preferably, the left fixing component includes a fixing plate with four through fixing holes at the upper end. The front inner wall and rear inner wall of the four fixing holes are rounded, and the fixing plate is snapped into the corresponding fixing groove.

[0011] By adopting the above technical solution, the front and rear inner walls of the four fixing holes are all set with rounded edges. When using bolts or other connecting parts to fix the copper and aluminum busbars to the transformer through the fixing holes, the rounded edge design can effectively reduce the friction and wear between the connecting parts and the inner wall of the fixing holes.

[0012] Preferably, the plurality of fixing holes are arranged in a rectangular array.

[0013] By adopting the above technical solution, the rectangular array of fixing holes enables the tensile force, compressive force, and impact force caused by vibration that the copper-aluminum busbar bears when connected to the external structure to be more evenly distributed across the entire fixing plate.

[0014] Preferably, the left connecting component includes a rubber ring, and rubber skirts are fixedly connected to the upper and lower parts of the outer surface of the rubber ring. A coil connection hole is opened at the upper end of the rubber ring.

[0015] By adopting the above technical solution, rubber skirts are fixedly connected to both the upper and lower parts of the outer surface of the rubber ring, and the rubber skirts achieve the function of buffering and protecting the transformer coil.

[0016] Preferably, the rubber ring is movably fitted into the corresponding mounting hole.

[0017] By adopting the above technical solution, when assembling the transformer, the operator only needs to align the rubber ring with the mounting hole and gently slip it on to complete the installation of the connection components.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this utility model, several through-holes are opened in the middle of the outer surface of the upper aluminum layer of the copper-aluminum busbar body. These heat dissipation holes are distributed in a ring array and a rectangular array in the center of the upper aluminum layer, which greatly increases the contact area between the copper-aluminum busbar and the air, which is conducive to the rapid dissipation of heat. During the operation of the transformer, the current passing through the copper-aluminum busbar will generate heat. Good heat dissipation performance can effectively reduce the operating temperature of the copper-aluminum busbar, reduce the increase in resistance and energy loss caused by overheating, improve the power transmission efficiency, and also extend the service life of the copper-aluminum busbar, ensuring the stable operation of the transformer.

[0020] 2. In this utility model, a polyimide thin insulating film is provided on the upper end surface of the upper aluminum layer and the lower end surface of the lower aluminum layer. This provides reliable insulation protection for the copper-aluminum busbar. In the complex electrical environment of the transformer, the polyimide thin insulating film can effectively prevent the copper-aluminum busbar from short-circuiting with the surrounding metal parts or other electrical components, avoid safety accidents caused by electrical faults, ensure the safe and stable operation of the transformer and the entire power system, and also reduce maintenance costs and downtime caused by insulation problems.

[0021] 3. In this utility model, the left and right connecting components are movably fitted with rubber rings into the mounting holes of the aluminum layer under the copper-aluminum busbar body, and connected to the transformer coil output through the coil connection holes of the rubber rings. The rubber rings have a certain degree of elasticity, which not only tightly wraps the transformer coil output to prevent it from loosening or falling off and ensuring a good electrical connection, but also the rubber skirt can play a certain role in buffering and protection, avoiding damage to the connection parts caused by external force collision or friction, further improving the stability and reliability of the connection, and reducing the increase in contact resistance and power loss caused by poor connection. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the copper-aluminum busbar for transformer coil outputs according to this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the copper-aluminum busbar body of the transformer coil lead copper-aluminum busbar according to the present invention.

[0024] Figure 3 This is a schematic diagram of the overall structure of the left fixing component of the transformer coil lead-out copper-aluminum busbar according to the present invention.

[0025] Figure 4 This is a schematic diagram of the overall structure of the left connecting component of the copper-aluminum busbar for transformer coil outputs according to this utility model.

[0026] In the diagram: 1. Copper-aluminum busbar body; 2. Left fixing component; 3. Right fixing component; 4. Left connecting component; 5. Right connecting component; 11. Upper aluminum layer; 12. Copper layer; 13. Lower aluminum layer; 14. Heat dissipation hole; 15. Polyimide thin insulating film; 16. Fixing groove; 17. Mounting sleeve hole; 21. Fixing plate; 22. Fixing hole; 23. Rounded edge; 41. Rubber ring; 42. Rubber skirt; 43. Coil connection hole. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figures 1-4 This utility model provides a technical solution:

[0031] A transformer coil lead-out copper-aluminum busbar includes a copper-aluminum busbar body 1. A left fixing component 2 is inserted and connected to the upper left part of the copper-aluminum busbar body 1, and a right fixing component 3 is inserted and connected to the upper right part of the copper-aluminum busbar body 1. The left fixing component 2 and the right fixing component 3 have the same structure. A left connecting component 4 is inserted and connected to the lower left part of the copper-aluminum busbar body 1, and a right connecting component 5 is inserted and connected to the lower right part of the copper-aluminum busbar body 1. The left connecting component 4 and the right connecting component 5 have the same structure.

[0032] In this embodiment, the copper-aluminum busbar body 1 includes an upper aluminum layer 11, a copper layer 12 fixedly connected to the lower end of the upper aluminum layer 11, and a lower aluminum layer 13 fixedly connected to the lower end of the copper layer 12. Several through-holes 14 are formed in the middle of the outer surface of the upper aluminum layer 11. A polyimide thin insulating film 15 is provided on the upper end surface of the upper aluminum layer 11 and the lower end surface of the lower aluminum layer 13. Through-holes 16 are formed on the upper left and upper right sides of the upper aluminum layer 11, and through-holes 17 are formed on the lower left and lower right sides of the lower aluminum layer 13. The middle parts of the upper aluminum layer 11, the copper layer 12, and the lower aluminum layer 13 are all semi-circular, with several heat dissipation holes. The aluminum layers 11 above the holes 14 are arranged in a central ring array and a rectangular array; the left fixing component 2 includes a fixing plate 21, the upper end of which has four through fixing holes 22, the front inner wall and the rear inner wall of the four fixing holes 22 are both rounded edges 23, and the fixing plate 21 is snapped into the corresponding fixing groove 16; the fixing holes 22 are arranged in a rectangular array; the left connecting component 4 includes a rubber ring 41, the upper and lower outer surfaces of which are fixedly connected with rubber skirts 42, the upper end of which has a through coil connection hole 43; the rubber ring 41 is movably fitted into the corresponding mounting hole 17.

[0033] It should be noted that this utility model is a copper-aluminum busbar for transformer coil output. During use, the fixing plate 21 of the left fixing component 2 is aligned with the fixing groove 16 on the upper left side of the aluminum layer 11 on the main body 1 of the copper-aluminum busbar and gently inserted so that the fixing plate 21 is engaged in the fixing groove 16. In the same way, the fixing plate 21 of the right fixing component 3 is installed in the fixing groove 16 on the upper right side of the aluminum layer 11 on the main body 1 of the copper-aluminum busbar, providing stable support and a fixed foundation for the overall installation. Then, the rubber ring 41 is aligned with the mounting hole 17 on the lower left side of the lower aluminum layer 13 on the main body 1 of the copper-aluminum busbar and slowly inserted so that the rubber ring 41 fits tightly in the mounting hole 17, ensuring that it will not easily fall off or shift. The rubber skirt 42 should remain in a natural state during installation and should not be squeezed or deformed to perform its protective and sealing functions. In the same manner, the rubber ring 41 of the right connecting component 5 is installed in the main body of the copper-aluminum busbar. The transformer coil's output wire is inserted into the mounting hole 17 on the lower right side of the aluminum layer 13 of the body 1. Then, the output wire of the transformer coil is passed through the coil connection hole 43 of the left connecting component 4. The position and length of the output wire are adjusted according to actual needs to ensure a firm connection and good contact. Since the rubber ring 41 has a certain elasticity and flexibility, it can tightly wrap the output wire to prevent it from loosening or shifting. At the same time, the rubber skirt 42 can play a certain role in insulation and protection, avoiding unnecessary contact between the output wire and the external environment. Similarly, the other output wire of the transformer coil is passed through the coil connection hole 43 of the right connecting component 5 and adjusted and fixed appropriately to ensure that the connection between the two output wires and the copper-aluminum busbar body 1 is stable and reliable, providing a good path for the transmission of electrical energy. Finally, the copper-aluminum busbar body 1 is fixed in the corresponding position of the transformer by using appropriate bolts, nuts and washers through the fixing holes 22 on the left fixing component 2 and the right fixing component 3.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A copper-aluminum busbar for transformer coil output, comprising a copper-aluminum busbar body (1), characterized in that: A left fixing component (2) is inserted and connected to the upper left part of the copper-aluminum busbar body (1), and a right fixing component (3) is inserted and connected to the upper right part of the copper-aluminum busbar body (1). The left fixing component (2) and the right fixing component (3) have the same structure. A left connecting component (4) is inserted and connected to the lower left part of the copper-aluminum busbar body (1), and a right connecting component (5) is inserted and connected to the lower right part of the copper-aluminum busbar body (1). The left connecting component (4) and the right connecting component (5) have the same structure. The copper-aluminum busbar body (1) includes an upper aluminum layer (11), a copper layer (12) is fixedly connected to the lower end of the upper aluminum layer (11), a lower aluminum layer (13) is fixedly connected to the lower end of the copper layer (12), a plurality of through heat dissipation holes (14) are opened in the middle of the outer surface of the upper aluminum layer (11), a polyimide thin insulating film (15) is provided on the upper end surface of the upper aluminum layer (11) and the lower end surface of the lower aluminum layer (13), a through fixing groove (16) is opened on the upper left and upper right of the upper aluminum layer (11), and a through mounting sleeve hole (17) is opened on the lower left and lower right of the lower aluminum layer (13). The left fixing component (2) includes a fixing plate (21), and the upper end of the fixing plate (21) has four through fixing holes (22). The front inner wall and the rear inner wall of the four fixing holes (22) are both rounded (23). The fixing plate (21) is snapped into the corresponding fixing groove (16). The left connecting component (4) includes a rubber ring (41), and rubber skirts (42) are fixedly connected to the upper and lower parts of the outer surface of the rubber ring (41). A coil connection hole (43) is opened at the upper end of the rubber ring (41).

2. The transformer coil lead-out copper-aluminum busbar according to claim 1, characterized in that: The middle part of the upper aluminum layer (11), the middle part of the copper layer (12) and the middle part of the lower aluminum layer (13) are all set as semi-circles, and a number of heat dissipation holes (14) are distributed in a ring array above the center of the upper aluminum layer (11) and in a rectangular array.

3. The transformer coil lead-out copper-aluminum busbar according to claim 1, characterized in that: The fixing holes (22) are arranged in a rectangular array.

4. The transformer coil lead-out copper-aluminum busbar according to claim 1, characterized in that: The rubber ring (41) is movably fitted into the corresponding mounting hole (17).

Images