Current-conducting plate of oil-immersed power transformer

Abstract

The utility model relates to the technical field of transformers, and discloses a current-conducting plate of an oil-immersed power transformer, which comprises a connecting sleeve, a current-conducting plate fixed on one side of the connecting sleeve, a positioning component arranged on the current-conducting plate and comprising a positioning piece, the positioning piece comprises a positioning frame clamped at the top of the current-conducting plate, a limiting plate is arranged on the inner side of the positioning frame, a stop block is fixed on the inner wall of the positioning frame, and the stop block is in contact with the limiting plate. The beneficial effects of the utility model are that when the current-conducting plate is connected with the copper nose, the copper nose can be positioned through the arrangement of the positioning assembly, so that when the copper nose is attached to the current-conducting plate, the copper nose cannot move due to the elastic force of a cable, and therefore, the bolt hole of the copper nose can be quickly aligned with the mounting hole; and the two holes can be positioned on the same axis without consuming manpower, so that a large error is avoided.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a conductive plate for an oil-immersed power transformer. Background Technology

[0002] As a key component of oil-immersed power transformers, the conductive plate is mainly used to connect windings, leads, and external circuits, and undertakes core functions such as power transmission, electrical connection, and mechanical support. When connecting the copper lugs to the conductive plate, the large number of cables in the conductive wires results in high elastic recovery force, making it difficult to keep the bolt holes of the copper lugs and the wiring holes of the conductive plate on the same axis. This makes it difficult to insert bolts and requires manual alignment. Manual alignment requires repeated adjustments to the position of the copper lugs and the conductive plate. Especially when there are many cables and they are highly elastic, it may take multiple attempts to align the holes. The time required for connecting the conductive plates of a single transformer is significantly increased, affecting the overall production rhythm. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing oil-immersed power transformer conductive plates, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that the bolt holes are difficult to align with the wiring holes of the conductive plate, requiring manual alignment, which is time-consuming and labor-intensive.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an oil-immersed power transformer conductive plate, which includes a connecting sleeve, wherein a conductive plate is fixed on one side of the connecting sleeve.

[0007] A positioning component is disposed on the conductive plate and includes a positioning element. The positioning element includes a positioning frame that is snapped onto the top of the conductive plate. A limit plate is disposed inside the positioning frame, and a stop block is fixed to the inner wall of the positioning frame. The stop block is in contact with the limit plate.

[0008] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, the positioning component includes a fixing member, the fixing member includes a rectangular block fixed to the inner wall of the positioning frame, and a fixing block is provided inside the rectangular block.

[0009] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, a rotating column is fixed inside the fixed block, the rotating column is movably connected to the rectangular block, a rotating sleeve is sleeved on the outside of the rotating column, a spiral groove is opened on the rotating column, a sliding block is fixed on the inner wall of the rotating sleeve, and the sliding block slides in the spiral groove.

[0010] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, a force-bearing plate is fixed at the bottom of the rotating sleeve, a first movable groove is provided in the positioning frame, and the force-bearing plate is movably connected to the first movable groove.

[0011] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, a spring is fixed to the bottom of the force-bearing plate, and the bottom end of the spring is fixed to the inner wall of the positioning frame.

[0012] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, the conductive plate is provided with mounting holes, and the positioning frame is provided with through holes, the through holes being coaxial with the mounting holes.

[0013] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, the rectangular block is fixed to the inner wall of the through hole.

[0014] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, there are multiple stops, which are respectively fixed on both sides of the inner wall of the positioning frame.

[0015] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, the limiting plate is movably connected to the positioning frame.

[0016] In a preferred embodiment of the conductive plate of the oil-immersed power transformer of this utility model, a second movable groove is provided on the limiting plate, and the second movable groove cooperates with the force-bearing plate.

[0017] The beneficial effects of this utility model are as follows: When the conductive plate is connected to the copper lug, the copper lug can be positioned by setting the positioning component, so that it will not move due to the elasticity of the cable when it is attached to the conductive plate. In this way, the bolt hole of the copper lug can be quickly aligned with the mounting hole, and the two holes can be aligned on the same axis without consuming manpower and without large errors. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort. Among them:

[0019] Figure 1 This is a structural diagram of the conductive plate of an oil-immersed power transformer.

[0020] Figure 2 This is a structural diagram of the positioning frame for the conductive plate of an oil-immersed power transformer.

[0021] Figure 3 This is a structural diagram of the fasteners for the conductive plates of an oil-immersed power transformer.

[0022] Figure 4 This is a structural diagram of the fixing block for the conductive plate of an oil-immersed power transformer. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1

[0027] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides an oil-immersed power transformer conductive plate. The oil-immersed power transformer conductive plate includes a connecting sleeve 101. The connecting sleeve 101 has a thread for connecting a conductive post. There are two rectangular protrusions on one side. The protrusions have screw holes. Screws are installed in the screw holes to make the connection between the conductive plate and the conductive post more stable.

[0028] A conductive plate 102 is fixed on one side of the connecting sleeve 101. The conductive plate 102 has multiple mounting holes 102-1 for fixing with the copper lug. This is existing technology and will not be described in detail here. Moreover, those skilled in the art can clearly understand the working principle.

[0029] Specifically, the positioning component 200 is disposed on the conductive plate 102 and includes a positioning member 201. The positioning member 201 includes a positioning frame 2011 that is snapped onto the top of the conductive plate 102. The positioning frame 2011 is U-shaped. A limit plate 2012 is provided on the inner side of the positioning frame 2011. A stop block 2013 is fixed on the inner wall of the positioning frame 2011. The stop block 2013 contacts the limit plate 2012 and is used to limit the limit plate 2012 to prevent the limit plate 2012 from separating from the inside of the positioning frame 2011.

[0030] When connecting the conductive plate, insert the copper lug into the positioning frame 2011. The positioning frame 2011 can then block and limit the copper lug, preventing it from moving due to the elasticity of the cable, thus maintaining its contact with the conductive plate 102. Then, move the limiting plate 2012 closer to the copper lug to make it fit tightly against the conductive plate 102. Finally, use screws to lock and fix the copper lug and the conductive plate 102. This eliminates the need for repeated manual adjustments to the position of the copper lug and the conductive plate 102, thereby reducing the connection process time and improving work efficiency.

[0031] The positioning frame 2011 and the limiting plate 2012 are both made of the same material as the conductive plate 102.

[0032] Example 2

[0033] Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, the positioning component 200 includes a fixing member 202, which includes a rectangular block 2021 fixed to the inner wall of the positioning frame 2011, and a fixing block 2023 is provided inside the rectangular block 2021.

[0035] When the copper lug is placed into the positioning frame 2011, the fixing block 2023 will rotate into the mounting hole 102-1 and contact the inner wall of the mounting hole 102-1. At this time, through the cooperation of the fixing block 2023 and the mounting hole 102-1, the positioning frame 2011 can be fixed to the conductive plate 102, thereby preventing the positioning frame 2011 from moving outside the conductive plate 102, which would cause the screw hole of the copper lug to be unable to align with the mounting hole 102-1.

[0036] Specifically, a rotating column 2022 is fixed inside the fixed block 2023. The rotating column 2022 is movably connected to the rectangular block 2021. A rotating sleeve 2024 is sleeved on the outside of the rotating column 2022. A spiral groove 2022-1 is opened on the rotating column 2022. A sliding block 2025 is fixed on the inner wall of the rotating sleeve 2024. The sliding block 2025 slides in the spiral groove 2022-1.

[0037] Specifically, a force-bearing plate 2026 is fixed at the bottom of the rotating sleeve 2024, and a first movable groove 2011-1 is provided in the positioning frame 2011. The force-bearing plate 2026 is movably connected to the first movable groove 2011-1. The first movable groove 2011-1 is to provide space for the force-bearing plate 2026 to move. The force-bearing plate 2026 is used to connect the two rotating sleeves 2024.

[0038] When the copper nose is placed into the positioning frame 2011, it will squeeze the force plate 2026 and push the force plate 2026 and the rotating sleeve 2024 downward. The rotating sleeve 2024 will drive the sliding block 2025 to move along the trajectory of the spiral groove 2022-1, and drive the rotating column 2022 and the fixing block 2023 to rotate, so that the fixing block 2023 can enter the mounting hole 102-1 and complete the fixing of the positioning frame 2011.

[0039] Specifically, a spring 2027 is fixed to the bottom of the load-bearing plate 2026, and the bottom end of the spring 2027 is fixed to the inner wall of the positioning frame 2011.

[0040] When the copper nose is removed from the positioning frame 2011, the spring 2027 fixed at the bottom of the force plate 2026 will release and push the force plate 2026 back to its original position.

[0041] Specifically, the conductive plate 102 has a mounting hole 102-1, and the positioning frame 2011 has a through hole 2011-2, which is coaxial with the mounting hole 102-1.

[0042] Example 3

[0043] Reference Figures 2-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0044] Specifically, rectangular block 2021 is fixed to the inner wall of through hole 2011-2.

[0045] The rectangular block 2021 is fixed to the inner wall of the through hole 2011-2, and the fixing block 2023 and the rotating column 2022 are set on the rectangular block 2021.

[0046] Specifically, there are multiple stop blocks 2013, which are fixed to both sides of the inner wall of the positioning frame 2011.

[0047] When the copper nose is placed inside the positioning frame 2011, the copper nose has a high elastic recovery force. The stop block 2013 is to allow the limiting plate 2012 to be moved out of the positioning frame 2011 when it is subjected to the force of the copper nose.

[0048] Specifically, the limiting plate 2012 is movably connected to the positioning frame 2011.

[0049] The limiting plate 2012 can slide freely within the positioning frame 2011, allowing the copper nose to fit more tightly with the conductive plate 102.

[0050] Specifically, the limiting plate 2012 has a second movable groove 2012-1, which cooperates with the force plate 2026.

[0051] The second movable groove 2012-1 is rectangular. When the limiting plate 2012 is pressing the copper nose, the force plate 2026 will enter the second movable groove 2012-1, thus not hindering the normal movement of the limiting plate 2012.

[0052] In use, the copper lug is inserted into the positioning frame 2011. The positioning frame 2011 then blocks and limits the copper lug, preventing it from moving due to the elasticity of the cable, thus maintaining its contact with the conductive plate 102. At the same time, when the copper lug is placed into the positioning frame 2011, it will compress the force plate 2026 and push the force plate 2026 and the rotating sleeve 2024 downward. The rotating sleeve 2024 will drive the sliding block 2025 to move along the trajectory of the spiral groove 2022-1, and drive the rotating column 2022 and the fixing block 2023 to rotate. This allows the fixing block 2023 to enter the mounting hole 102-1 and complete the fixation of the positioning frame 2011, thereby preventing the positioning frame 2011 from shifting.

[0053] At this point, the limiting plate 2012 is brought closer to the copper nose so that the copper nose and the conductive plate 102 are tightly attached. Then, screws are used to lock and fix the copper nose and the conductive plate 102, thus completing the connection between the copper nose and the conductive plate 102. This eliminates the need for manual adjustment of the position of the copper nose and the conductive plate 102, thereby reducing the time of the connection process and improving work efficiency.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A conductive plate for an oil-immersed power transformer, characterized in that: include, Connecting sleeve (101), with a conductive plate (102) fixed on one side of the connecting sleeve (101); A positioning component (200) is disposed on the conductive plate (102) and includes a positioning element (201). The positioning element (201) includes a positioning frame (2011) that is snapped onto the top of the conductive plate (102). A limiting plate (2012) is provided inside the positioning frame (2011). A stop block (2013) is fixed to the inner wall of the positioning frame (2011). The stop block (2013) is in contact with the limiting plate (2012).

2. The conductive plate of the oil-immersed power transformer as described in claim 1, characterized in that: The positioning component (200) includes a fixing member (202), which includes a rectangular block (2021) fixed to the inner wall of the positioning frame (2011), and a fixing block (2023) is provided inside the rectangular block (2021).

3. The conductive plate of the oil-immersed power transformer as described in claim 2, characterized in that: A rotating column (2022) is fixed inside the fixed block (2023). The rotating column (2022) is movably connected to the rectangular block (2021). A rotating sleeve (2024) is fitted on the outside of the rotating column (2022). A spiral groove (2022-1) is opened on the rotating column (2022). A sliding block (2025) is fixed on the inner wall of the rotating sleeve (2024). The sliding block (2025) slides in the spiral groove (2022-1).

4. The conductive plate of the oil-immersed power transformer as described in claim 3, characterized in that: The bottom of the rotating sleeve (2024) is fixed with a force plate (2026), and the positioning frame (2011) has a first movable groove (2011-1). The force plate (2026) is movably connected to the first movable groove (2011-1).

5. The conductive plate of the oil-immersed power transformer as described in claim 4, characterized in that: A spring (2027) is fixed to the bottom of the force plate (2026), and the bottom end of the spring (2027) is fixed to the inner wall of the positioning frame (2011).

6. The conductive plate of the oil-immersed power transformer as described in claim 5, characterized in that: The conductive plate (102) has a mounting hole (102-1), and the positioning frame (2011) has a through hole (2011-2). The through hole (2011-2) is coaxial with the mounting hole (102-1).

7. The conductive plate of the oil-immersed power transformer as described in claim 6, characterized in that: The rectangular block (2021) is fixed to the inner wall of the through hole (2011-2).

8. The conductive plate of the oil-immersed power transformer as described in claim 7, characterized in that: There are multiple stops (2013), which are fixed to both sides of the inner wall of the positioning frame (2011).

9. The conductive plate of the oil-immersed power transformer as described in claim 8, characterized in that: The limiting plate (2012) is movably connected to the positioning frame (2011).

10. The conductive plate of the oil-immersed power transformer as described in claim 9, characterized in that: The limiting plate (2012) is provided with a second movable groove (2012-1), which cooperates with the force plate (2026).

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