A laminated aluminum bar for a three-level inverter

Abstract

The utility model discloses a kind of laminated aluminium bars of three-level frequency converter, comprising: laminated aluminium bar, mounting hole, mounting plate, mounting hole is set in the both ends of laminated aluminium bar, mounting plate has two, and is located the lower surface of both ends of laminated aluminium bar;Mounting assembly, mounting assembly includes fixed column, clamping slot, sliding slot and sliding block, fixed column is penetrated in mounting hole inside, clamping slot is set in the lower end of fixed column, sliding slot is set in the lower end of the outside of mounting plate, sliding block sliding penetrates sliding slot inside, the side of sliding block is fixed with fixed frame, the side wall of mounting plate is set with connecting groove, and connecting groove and connecting hole are mutually penetrated, fixed frame inside sliding penetrates with clamping post, the middle part of the outer surface of clamping post is fixed with baffle, the side of baffle is fixed with spring, and spring is located in fixed frame inside.The utility model is through the cooperation of clamping post and connecting groove, clamping slot, realize automatic limiting and fixed, without using other tools, greatly reduce the operation complexity.

Description

Technical Field

[0001] This utility model relates to the technical field of three-level frequency converters, specifically to a stacked aluminum busbar for a three-level frequency converter. Background Technology

[0002] Three-level frequency converters are a commonly used power electronic converter topology. They feature high voltage conversion capability and low harmonic distortion, and are widely used in AC motor speed regulation, high-voltage direct current transmission, and new energy power generation. Laminated aluminum busbars, also known as composite aluminum busbars, are multi-layered composite structure connecting busbars, which can be considered the "highway" of the power distribution system. Laminated aluminum busbars play a crucial role in the frequency converter in terms of conductivity and connection, ensuring efficient current transmission and distribution.

[0003] When installing the laminated aluminum busbar, it is necessary to place the laminated aluminum busbar in the predetermined position and ensure that it is aligned with the connection terminals of the adjacent components. Use bolts or crimp terminals to connect the laminated aluminum busbar to the components, ensuring that the connection is tight and the force is evenly distributed. Use a torque wrench to tighten the bolts according to the specified torque value, avoiding being too loose or too tight.

[0004] During the installation of laminated aluminum busbars, which consist of a conductive layer, an insulating layer, and a support layer, each layer requires precise alignment and fixation. Furthermore, the laminated aluminum busbars are installed inside the frequency converter, where the limited space makes it difficult to use installation tools. Therefore, there is a need to provide a laminated aluminum busbar that can be quickly installed in confined spaces to improve installation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a laminated aluminum busbar for a three-level frequency converter to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a stacked aluminum busbar for a three-level frequency converter, comprising:

[0007] The stacked aluminum busbar includes mounting holes and mounting plates. The mounting holes are located at both ends of the stacked aluminum busbar, and there are two mounting plates located on the lower surfaces of both ends of the stacked aluminum busbar.

[0008] The mounting assembly includes a fixing post, a slot, a sliding groove, and a slider. The fixing post passes through the mounting hole, the slot is located at the lower end of the fixing post, the sliding groove is located at the lower outer end of the mounting plate, and the slider slides through the sliding groove.

[0009] Furthermore, the upper surface of the mounting plate is provided with connection holes, and the connection holes are aligned with the mounting holes.

[0010] Furthermore, a fixing frame is fixed to one side of the slider, a connecting groove is provided on the side wall of the mounting plate, and the connecting groove and the connecting hole are interconnected. A locking post slides through the inside of the fixing frame.

[0011] Furthermore, a baffle is fixed to the middle of the outer surface of the locking post, and a spring is fixed to one side of the baffle, with the spring located inside the fixing frame.

[0012] Furthermore, the end of the locking pin extends into the connecting groove, and when the connecting groove corresponds to the locking slot, the end of the locking pin extends into the locking slot.

[0013] Furthermore, it also includes a reinforcement component, which includes a mounting frame, a threaded hole, and a threaded rod. The mounting frame is fixed to the upper surface of the mounting plate, the threaded hole is opened at the center of the mounting frame, and the threaded rod is threaded through the inside of the threaded hole.

[0014] Furthermore, a bearing is rotatably mounted on the lower end of the threaded rod, and a pressure plate is fixed on the lower surface of the bearing, with the lower surface of the pressure plate contacting the upper surface of the fixed column.

[0015] This utility model has the following beneficial effects:

[0016] This utility model relates to a stacked aluminum busbar, mounting holes, mounting plate, connecting holes, and mounting components. When installing the stacked aluminum busbar, simply align the busbar with the connecting holes, then insert the fixing post into both the mounting holes and the connecting holes. Moving the slider synchronously moves the fixing frame. When the locking post aligns with the connecting groove, the spring quickly returns to its original shape, causing the locking post to insert into the connecting groove. Then, rotating the fixing post, when the locking groove aligns with the connecting groove, the end of the locking post also inserts into the locking groove, limiting the fixing post within the connecting hole and fixing the stacked aluminum busbar to the mounting plate. Through the cooperation of the locking post and the connecting groove, automatic limiting and fixing are achieved, eliminating the need for other tools and greatly reducing operational complexity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 Analyzing the structure of the mounting components of this utility model Figure 1 ;

[0020] Figure 3Analyzing the structure of the mounting components of this utility model Figure 2 ;

[0021] Figure 4 This is an exploded view of the reinforcement component structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 11. Laminated aluminum busbar; 12. Mounting holes; 13. Mounting plate; 14. Connecting holes;

[0024] 21. Fixed post; 211. Slot; 22. Slide groove; 23. Slider; 24. Fixed frame; 25. Locking post; 26. Baffle; 27. Spring; 28. Connecting groove;

[0025] 31. Mounting frame; 32. Threaded hole; 33. Threaded rod; 34. Bearing; 35. Pressure plate. Detailed Implementation

[0026] 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.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Please see Figure 1-4 As shown, this utility model is a stacked aluminum busbar for a three-level frequency converter, comprising:

[0029] The stacked aluminum busbar 11, mounting holes 12, and mounting plates 13 are provided. The mounting holes 12 are provided at both ends of the stacked aluminum busbar 11. There are two mounting plates 13, which are located on the lower surfaces of both ends of the stacked aluminum busbar 11. The upper surface of the mounting plates 13 is provided with connecting holes 14, and the connecting holes 14 are directly opposite to the mounting holes 12.

[0030] The laminated aluminum busbar 11 is a core conductive component used to transmit high current. It has mounting holes 12 at both ends for cooperating with the fixing post 21 to fix the laminated aluminum busbar on the mounting plate 13. The mounting plate 13 is used to support and fix the laminated aluminum busbar 11 and is fixed inside the frequency converter without affecting the structure of the frequency converter itself.

[0031] The mounting assembly includes a fixing post 21, a slot 211, a sliding groove 22, and a slider 23. The fixing post 21 passes through the mounting hole 12. The slot 211 is located at the lower end of the fixing post 21. The sliding groove 22 is located at the lower outer side of the mounting plate 13. The slider 23 slides through the sliding groove 22.

[0032] The fixing post 21 is used to fix the laminated aluminum strip 11 to the mounting plate 13. The slot 211 is used to cooperate with the locking post 25. When the locking post 25 is inserted into the slot 211, the fixing post 21 is limited to prevent it from coming out of the connecting hole 14. The sliding groove 22 is used to accommodate the slider 23, so that the slider 23 can slide along the sliding groove 22, thereby driving the fixing frame 24 and the locking post 25 to move. The slider 23 is used to drive the fixing frame 24 and the locking post 25 to move.

[0033] A fixed frame 24 is fixed to one side of the slider 23. A connecting groove 28 is provided on the side wall of the mounting plate 13, and the connecting groove 28 and the connecting hole 14 are interconnected. A locking post 25 slides through the inside of the fixed frame 24. A baffle 26 is fixed in the middle of the outer surface of the locking post 25. A spring 27 is fixed to one side of the baffle 26, and the spring 27 is located inside the fixed frame 24. The end of the locking post 25 extends into the connecting groove 28. When the connecting groove 28 corresponds to the locking groove 211, the end of the locking post 25 extends into the locking groove 211.

[0034] The fixed frame 24 is used to guide the movement direction of the locking post 25 and to accommodate the spring 27. The connecting groove 28 is used to receive the end of the locking post 25 to achieve initial positioning. The end of the locking post 25 can be inserted into the connecting groove 28 and the locking groove 211 to lock the fixed post 21 and prevent it from loosening or falling off. The spring 27 is used to provide elastic force so that the locking post 25 can quickly return to its original position after movement and be inserted into the connecting groove 28 and the locking groove 211.

[0035] Working principle:

[0036] When installing the laminated aluminum busbar 11, simply align the laminated aluminum busbar 11 with the connecting hole 14, then insert the fixing post 21 into the mounting hole 12 and the connecting hole 14, and then move the slider 23. The slider 23 will simultaneously drive the fixing frame 24 to move. When the locking post 25 is aligned with the connecting groove 28, under the elastic force of the spring 27, the spring 27 will quickly recover its deformation, driving the locking post 25 to be inserted into the connecting groove 28. Then, rotate the fixing post 21. When the locking groove 211 is aligned with the connecting groove 28, the end of the locking post 25 will also be inserted into the locking groove 211, limiting the fixing post 21 in the connecting hole 14 and fixing the laminated aluminum busbar 11 to the mounting plate 13.

[0037] This step, through the cooperation of the locking post 25 with the connecting slot 28 and the locking slot 211, achieves automatic positioning and fixation, eliminating the need for other tools and greatly reducing the complexity of operation.

[0038] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0039] The reinforcement component includes a mounting frame 31, a threaded hole 32, and a threaded rod 33. The mounting frame 31 is fixed to the upper surface of the mounting plate 13. The threaded hole 32 is opened in the center of the mounting frame 31. The threaded rod 33 is threaded through the threaded hole 32. A bearing 34 is rotatably mounted on the lower end of the threaded rod 33, and a pressure plate 35 is fixed on the lower surface of the bearing 34. The lower surface of the pressure plate 35 is in contact with the upper surface of the fixing post 21.

[0040] The mounting frame 31 provides support and positioning for the threaded rod 33. The threaded rod 33 rotates through the threaded hole 32 to move up and down, thereby driving the pressure plate 35 to press the fixed column 21. The threaded rod 33 moves up and down by rotating, and its lower end is connected to the bearing 34 and the pressure plate 35 to transmit the clamping force and firmly press the fixed column 21 onto the mounting plate 13.

[0041] Working principle:

[0042] After the stacked aluminum busbar 11 is installed, rotate the threaded rod 33. The threaded rod 33 rotates in the threaded hole 32, which drives the bearing 34 to move. Simultaneously, the pressure plate 35 presses down the fixed column 21, which can synchronously and stably install all the fixed columns 21 of the plate 13, ensuring that all the fixed columns 21 are subjected to uniform force, and avoiding the overall connection from being unstable due to the loosening of a single fixed column 21.

[0043] In this step, the pressure plate 35 further presses down on the fixing post 21 and the locking post 25 to form a double guarantee, ensuring that the fixing post 21 is firmly fixed in the connection hole 14 and improving the stability of the connection.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stacked aluminum busbar for a three-level frequency converter, characterized in that, include: The stacked aluminum busbar (11), mounting holes (12), and mounting plates (13) are provided. The mounting holes (12) are located at both ends of the stacked aluminum busbar (11), and there are two mounting plates (13) located on the lower surfaces of both ends of the stacked aluminum busbar (11). The mounting assembly includes a fixing post (21), a slot (211), a sliding groove (22), and a slider (23). The fixing post (21) passes through the mounting hole (12), the slot (211) is located at the lower end of the fixing post (21), the sliding groove (22) is located at the lower outer side of the mounting plate (13), and the slider (23) slides through the sliding groove (22).

2. The laminated aluminum busbar of a three-level frequency converter according to claim 1, characterized in that: The upper surface of the mounting plate (13) is provided with a connection hole (14), and the connection hole (14) is directly opposite to the mounting hole (12).

3. The laminated aluminum busbar of a three-level frequency converter according to claim 2, characterized in that: A fixing frame (24) is fixed on one side of the slider (23), and a connecting groove (28) is provided on the side wall of the mounting plate (13). The connecting groove (28) and the connecting hole (14) are interconnected. A locking post (25) slides through the inside of the fixing frame (24).

4. The laminated aluminum busbar of a three-level frequency converter according to claim 3, characterized in that: A baffle (26) is fixed in the middle of the outer surface of the pin (25), and a spring (27) is fixed on one side of the baffle (26), and the spring (27) is located inside the fixing frame (24).

5. The laminated aluminum busbar of a three-level frequency converter according to claim 4, characterized in that: The end of the locking pin (25) extends into the connecting groove (28), and when the connecting groove (28) corresponds to the locking groove (211), the end of the locking pin (25) extends into the locking groove (211).

6. The laminated aluminum busbar of a three-level frequency converter according to claim 1, characterized in that: It also includes a reinforcement component, which includes a mounting frame (31), a threaded hole (32) and a threaded rod (33). The mounting frame (31) is fixed to the upper surface of the mounting plate (13), the threaded hole (32) is opened in the center of the mounting frame (31), and the threaded rod (33) is threaded through the inside of the threaded hole (32).

7. The laminated aluminum busbar of a three-level frequency converter according to claim 6, characterized in that: The lower end of the threaded rod (33) is rotatably mounted with a bearing (34), and a pressure plate (35) is fixed on the lower surface of the bearing (34), with the lower surface of the pressure plate (35) in contact with the upper surface of the fixed column (21).

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