A multilayer composite insulation-reinforced laminated busbar structure

Abstract

This application relates to a multi-layer composite insulation reinforced laminated busbar structure, belonging to the field of laminated busbars. It includes a main insulation plate, with a first electrode plate and a second electrode plate attached to its upper and lower sides. A first secondary insulation plate is attached to the upper surface of the first electrode plate, and a second secondary insulation plate is attached to the lower surface of the second electrode plate. A protective top frame is fastened to the upper surface of the first secondary insulation plate, and a protective bottom frame, matching the protective top frame, is fastened to the lower surface of the second secondary insulation plate. The multi-layer composite insulation reinforced laminated busbar structure of this application effectively enhances insulation performance and improves structural stability and reliability through multi-layer composite insulation design and a reasonable structural layout. By adding protective top and bottom frames to the upper and lower ends of the multi-layer laminated busbar, the overall connection performance between the layers of the laminated busbar is further improved through the cooperation of the protective top and bottom frames and the setting of related reinforcement structures.

Description

Technical Field

[0001] This application relates to the technical field of laminated busbars, and in particular to a multilayer composite insulation reinforced laminated busbar structure. Background Technology

[0002] Laminated busbars, also known as composite busbars or composite copper busbars, are multi-layered composite structure connection busbars, serving as the "highways" of power transmission and distribution systems. Compared to traditional wiring methods, composite busbars provide modern, easy-to-design, quick-to-install, and structurally clear power distribution systems. They are high-power modular connection structure components characterized by repeatable electrical performance, low impedance, interference resistance, high reliability, space saving, and simple and quick assembly.

[0003] Traditional laminated busbar structures typically consist of simple plates and insulation layers. The overall structural stability is relatively poor. The fit between the plates and insulation layers is not tight enough. During long-term use, factors such as equipment vibration and temperature changes can easily cause displacement or loosening between the plates and insulation layers, leading to increased contact resistance and subsequent heat generation. This not only reduces power transmission efficiency but may also pose safety hazards.

[0004] Furthermore, traditional laminated busbars lack effective protection for their edges. External dust, moisture, and corrosive substances can easily penetrate the interior of the laminated busbar, damaging the insulation layer and plates, further reducing the insulation performance and service life of the laminated busbar. Utility Model Content

[0005] To increase the strength and safety of laminated busbars, this application provides a multi-layer composite insulation reinforced laminated busbar structure.

[0006] The multilayer composite insulation reinforced laminated busbar structure provided in this application adopts the following technical solution:

[0007] A multilayer composite insulation reinforced stacked busbar structure includes a main insulation plate. A first electrode plate and a second electrode plate are attached to the upper and lower sides of the main insulation plate. A first secondary insulation plate is attached to the upper end face of the first electrode plate, and a second secondary insulation plate is attached to the lower end face of the second electrode plate. A protective top frame is fastened to the upper end face of the first secondary insulation plate, and a protective bottom frame that cooperates with the protective top frame is fastened to the lower end face of the second secondary insulation plate. The lower end face of the protective top frame is attached to the upper end face of the protective bottom frame, and the protective top frame and the protective bottom frame are bonded and fixed.

[0008] By adopting the above technical solution, a multi-layer composite insulation structure is formed by setting a first electrode plate and a second electrode plate on the upper and lower sides of the main insulation plate, and setting a second and a third auxiliary insulation plate on the outer side of the electrode plates, respectively. This effectively enhances the insulation performance of the laminated busbar and ensures stable connection and use through the first and second electrode plates. Furthermore, the coordinated arrangement of the protective top frame and the protective bottom frame ensures that the busbar can be clamped and held from both ends during use. This effectively protects the edges of the laminated busbar, protecting not only the internal structure but also preventing damage to the insulation layer and electrode plates from external factors, thus improving the overall stability and reliability of the laminated busbar.

[0009] Optionally, the first electrode plate includes a first plate body and a connecting straight lug, wherein the connecting straight lug is evenly disposed on the outer side surface of the first plate body and is integrally formed with the first plate body.

[0010] By adopting the above technical solution, the first electrode plate is designed as a structure in which the first plate body and several connecting straight lugs cooperate, and the connecting straight lugs of the first electrode plate are integrally formed with the first plate body, the integrity and stability of the first electrode plate structure are ensured, which facilitates connection with other electrical components. At the same time, the integrally formed structure reduces the resistance of the connection parts and improves the conductivity.

[0011] Optionally, the second electrode plate includes a second plate body and a connecting elbow, the connecting elbow being uniformly disposed on the outer side surface of the second plate body, and the second plate body and the connecting elbow being integrally formed.

[0012] By adopting the above technical solution, the second electrode plate is designed as a structure in which the second plate body and the connecting elbow cooperate. At the same time, the connecting elbow of the second electrode plate is integrally formed with the second plate body, which increases the flexibility of connecting the second electrode plate with other components. The design of the connecting elbow can adapt to different installation spaces and connection requirements, and improves the applicability of the laminated busbar.

[0013] Optionally, the protective top frame includes a main frame shell and auxiliary pressure plates. The auxiliary pressure plates are evenly arranged at the four corners of the upper surface of the main frame shell, and the auxiliary pressure plates are integrally formed with the main frame shell.

[0014] By adopting the above technical solution, the auxiliary pressure plate of the protective top frame is set at the four corners of the upper end face of the main frame shell, which can better fix the secondary insulation plate and the first electrode plate, prevent displacement or loosening during use, and further improve the structural stability of the laminated busbar.

[0015] Optionally, the front end face of the main frame shell is provided with a stepped groove for installing connecting straight lugs and connecting curved lugs. A reinforcing frame for limiting the connection of the straight lugs is provided above the stepped groove, and the reinforcing frame is integrally formed with the main frame shell.

[0016] By adopting the above technical solution, the stepped groove on the front face of the main frame provides installation space for the connecting straight lugs and connecting curved lugs, facilitating the installation and positioning of the electrode plates. The reinforcing frame can be fitted onto the connecting straight lugs for limiting protection, preventing them from shaking during use and ensuring the stability and reliability of the connection.

[0017] Optionally, the protective bottom frame includes a sub-frame shell and a stepped pressure strip corresponding to the stepped groove. The stepped pressure strip is evenly disposed on the upper end surface of the sub-frame shell, and the stepped pressure strip is integrally formed with the sub-frame shell.

[0018] By adopting the above technical solution, the stepped pressure strip of the protective bottom frame corresponds to the stepped groove of the main frame shell. When the protective top frame and the protective bottom frame are fastened together, they can better fix and protect the connecting straight lugs and connecting curved lugs, thereby enhancing the overall structural strength of the laminated busbar.

[0019] Optionally, the front end face of the stepped strip is provided with a reinforcing strip that cooperates with the reinforcing frame. The reinforcing frame and the reinforcing strip are clamped at the upper and lower ends of the connecting straight lug, and the reinforcing strip and the stepped strip are integrally formed.

[0020] By adopting the above technical solution, the reinforcing strip and the reinforcing frame cooperate to clamp the upper and lower ends of the connecting straight lug, which further improves the stability of the connecting straight lug, prevents it from deforming or loosening when subjected to external force, and ensures the reliability of the electrical connection.

[0021] Optionally, the outer side of the sub-frame shell is provided with a plurality of auxiliary support platforms for supporting and connecting bent lugs, and the auxiliary support platforms are integrally formed with the sub-frame shell.

[0022] By adopting the above technical solution, the auxiliary support on the outer side of the sub-frame can support the connecting lug, reduce the stress on the connecting lug, prevent it from deforming due to long-term stress, extend the service life of the connecting lug, and improve the overall performance of the laminated busbar.

[0023] In summary, this application includes at least one of the following beneficial technical effects: The multi-layer composite insulation reinforced laminated busbar structure of this application effectively enhances insulation performance and improves structural stability and reliability through multi-layer composite insulation design and reasonable structural layout. By adding protective top frames and protective bottom frames to the upper and lower ends of the multi-layer laminated busbar, the overall performance of the connection between the layers of the laminated busbar is further improved through the cooperation of the protective top frames and protective bottom frames and the setting of related reinforcement structures. Furthermore, the connecting straight lugs and connecting bent lugs used for external connections are further strengthened through the reinforcement frames, auxiliary pressure plates, auxiliary supports, and reinforcement strips on the protective top frames and protective bottom frames, enabling them to better adapt to various complex operating environments and meet the electrical connection requirements of power electronic equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0025] Figure 2 This is an exploded structural diagram of the overall structure in the embodiments of this application.

[0026] Figure 3 This is a perspective view of the protective top frame in the embodiments of this application.

[0027] Figure 4 This is a perspective view of the protective base frame in the embodiments of this application.

[0028] Figure 5 yes Figure 4 Front view of the device shown.

[0029] Explanation of reference numerals in the attached drawings: 1. Main insulating plate; 2. First electrode plate; 21. First plate body; 22. Connecting straight lug; 3. Second electrode plate; 31. Second plate body; 32. Connecting bent lug; 4. Secondary insulating plate one; 5. Secondary insulating plate two; 6. Protective top frame; 61. Main frame shell; 611. Stepped groove; 612. Reinforcing frame; 62. Auxiliary pressure plate; 7. Protective bottom frame; 71. Secondary frame shell; 711. Auxiliary support platform; 72. Stepped pressure strip; 721. Reinforcing strip. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a multilayer composite insulation-reinforced laminated busbar structure. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown, a multi-layer composite insulation reinforced stacked busbar structure includes a main insulation plate 1. A first electrode plate 2 and a second electrode plate 3 are attached to the upper and lower sides of the main insulation plate 1. A secondary insulation plate 4 is attached to the upper surface of the first electrode plate 2, and a secondary insulation plate 5 is attached to the lower surface of the second electrode plate 3. A protective top frame 6 is fastened to the upper surface of the secondary insulation plate 4, and a protective bottom frame 7, which cooperates with the protective top frame 6, is fastened to the lower surface of the secondary insulation plate 5. The lower surface of the protective top frame 6 and the upper surface of the protective bottom frame 7 are attached together, and the protective top frame 6 and the protective bottom frame 7 are bonded and fixed. By setting the first electrode plate 2 and the second electrode plate 3 on the upper and lower sides of the main insulation plate 1, and setting the secondary insulation plate 4 and the secondary insulation plate 5 on the outer side of the electrode plates respectively, a multi-layer composite insulation structure is formed, effectively enhancing the insulation performance of the stacked busbar and ensuring stable connection and use through the first electrode plate 2 and the second electrode plate 3 during use. The protective top frame 6 and the protective bottom frame 7 work together to ensure that the busbar can be clamped from both the top and bottom during use. This effectively protects the edges of the stacked busbar, protecting not only the internal structure but also preventing external factors from damaging the insulation layer and plates, thus improving the overall stability and reliability of the stacked busbar.

[0032] Reference Figure 2 As shown, the first electrode plate 2 includes a first plate body 21 and connecting lugs 22. The connecting lugs 22 are evenly distributed on the outer surface of the first plate body 21, and the connecting lugs 22 are integrally formed with the first plate body 21. By designing the first electrode plate 2 into a structure in which the first plate body 21 and several connecting lugs 22 cooperate, and by integrally forming the connecting lugs 22 with the first plate body 21, the integrity and stability of the first electrode plate 2 structure are ensured, facilitating connection with other electrical components. At the same time, the integrally formed structure reduces the resistance at the connection points and improves the conductivity. The second electrode plate 3 includes a second plate body 31 and connecting bent lugs 32. The connecting bent lugs 32 are evenly distributed on the outer surface of the second plate body 31, and the second plate body 31 and the connecting bent lugs 32 are integrally formed. By designing the second electrode plate 3 into a structure in which the second plate body 31 and the connecting elbow 32 cooperate, and the connecting elbow 32 of the second electrode plate 3 is integrally formed with the second plate body 31, the flexibility of connecting the second electrode plate 3 with other components is increased. The design of the connecting elbow 32 can adapt to different installation spaces and connection requirements, thus improving the applicability of the laminated busbar.

[0033] Reference Figure 3As shown, the protective top frame 6 includes a main frame shell 61 and auxiliary pressure plates 62. The auxiliary pressure plates 62 are evenly distributed at the four corners of the upper surface of the main frame shell 61, and are integrally formed with the main frame shell 61. The auxiliary pressure plates 62 of the protective top frame 6 are located at the four corners of the upper surface of the main frame shell 61, which can better fix the secondary insulating plate 4 and the first electrode plate 2, preventing displacement or loosening during use, and further improving the structural stability of the laminated busbar. The front end face of the main frame shell 61 has a stepped groove 611 for installing the connecting straight lug 22 and the connecting bent lug 32. A reinforcing frame 612 for limiting the connecting straight lug 22 is provided above the stepped groove 611, and the reinforcing frame 612 is integrally formed with the main frame shell 61. The stepped groove 611 on the front end face of the main frame shell 61 provides installation space for the connecting straight lug 22 and the connecting bent lug 32, which facilitates the installation and positioning of the electrode plate. The reinforcement frame 612 can be fitted onto the connecting lug 22 for limiting protection, preventing it from shaking during use and ensuring the stability and reliability of the connection.

[0034] Reference Figure 4 and Figure 5 As shown, the protective bottom frame 7 includes a sub-frame shell 71 and stepped pressure strips 72 corresponding to stepped grooves 611. The stepped pressure strips 72 are evenly distributed on the upper end face of the sub-frame shell 71, and are integrally formed with the sub-frame shell 71. The stepped pressure strips 72 of the protective bottom frame 7 correspond to the stepped grooves 611 of the main frame shell 61. When the protective top frame 6 and the protective bottom frame 7 are fastened together, they can better fix and protect the connecting straight lugs 22 and connecting curved lugs 32, thereby enhancing the overall structural strength of the laminated busbar. The front end face of the stepped pressure strip 72 is provided with a reinforcing strip 721 that cooperates with the reinforcing frame 612. The reinforcing frame 612 and the reinforcing strip 721 are clamped at the upper and lower ends of the connecting straight lugs 22, and the reinforcing strip 721 is integrally formed with the stepped pressure strip 72. The reinforcing strip 721 cooperates with the reinforcing frame 612, clamping the upper and lower ends of the connecting straight lug 22, further improving the stability of the connecting straight lug 22, preventing it from deforming or loosening under external force, and ensuring the reliability of the electrical connection. Several auxiliary supports 711 for supporting the connecting bent lug 32 are provided on the outer surface of the sub-frame shell 71. The auxiliary supports 711 are integrally formed with the sub-frame shell 71. The auxiliary supports 711 on the outer surface of the sub-frame shell 71 can support the connecting bent lug 32, reduce the stress on the connecting bent lug 32, prevent it from deforming due to prolonged stress, extend the service life of the connecting bent lug 32, and improve the overall performance of the laminated busbar.

[0035] The implementation principle of the multi-layer composite insulation reinforced stacked busbar structure in this application embodiment is as follows: In use, the sub-insulation plate 4, first electrode plate 2, main insulation plate 1, second electrode plate 3, and sub-insulation plate 5 are first tightly sealed together from top to bottom. Then, the protective top frame 6 is fastened to the upper end face of the sub-insulation plate 4, aligning the stepped groove 611 on the front end face of the main frame shell 61 with the connecting straight lug 22 and the connecting bent lug 32. Simultaneously, the reinforcing frame 612 limits the position of the connecting straight lug 22. The auxiliary pressure plate 62 of the protective top frame 6 presses against the four corners of the sub-insulation plate 4, providing a fixing function. Next, the protective bottom frame 7 is fastened to the lower end face of the sub-insulation plate 5, aligning the stepped pressure strip 72 with the stepped groove 611 of the main frame shell 61. The reinforcing strip 721 cooperates with the reinforcing frame 612 to clamp the connecting straight lug 22. The auxiliary support 711 on the outer side of the sub-frame shell 71 supports the connecting bent lug 32. Finally, the lower end face of the protective top frame 6 is attached to the upper end face of the protective bottom frame 7, and adhesives such as glue are used to bond and fix the protective top frame 6 and the protective bottom frame 7 to complete the assembly of the laminated busbar structure.

[0036] The multi-layer composite insulation-reinforced laminated busbar structure of this invention can be widely used in various power electronic devices, such as frequency converters, inverters, and electric vehicle battery management systems. In these devices, the laminated busbar, as a key component for electrical connections, directly affects the performance and reliability of the equipment due to its insulation performance and structural stability. The laminated busbar structure of this invention can effectively improve the insulation performance of the equipment, reduce the probability of electrical faults, and its stable structural design can adapt to the usage requirements of the equipment under different operating conditions, thereby improving the overall performance and service life of the equipment.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-layer composite insulation reinforced laminated busbar structure comprising a main insulation plate (1), characterized in that: The main insulating plate (1) has a first electrode plate (2) and a second electrode plate (3) attached to its upper and lower sides. The first electrode plate (2) has a first auxiliary insulating plate (4) attached to its upper end surface, and the second electrode plate (3) has a second auxiliary insulating plate (5) attached to its lower end surface. The first auxiliary insulating plate (4) has a protective top frame (6) fastened to its upper end surface, and the second auxiliary insulating plate (5) has a protective bottom frame (7) that cooperates with the protective top frame (6) fastened to its lower end surface. The lower end surface of the protective top frame (6) is attached to the upper end surface of the protective bottom frame (7), and the protective top frame (6) and the protective bottom frame (7) are glued and fixed together.

2. A multi-layer composite insulation reinforced laminated busbar structure as claimed in claim 1, wherein: The first electrode plate (2) includes a first plate body (21) and a connecting straight lug (22). The connecting straight lug (22) is evenly disposed on the outer side of the first plate body (21), and the connecting straight lug (22) is integrally formed with the first plate body (21).

3. A multi-layer composite insulation reinforced laminated busbar structure as claimed in claim 2, wherein: The second electrode plate (3) includes a second plate body (31) and a connecting lug (32), the connecting lug (32) being evenly disposed on the outer side of the second plate body (31), and the second plate body (31) and the connecting lug (32) being integrally formed.

4. A multi-layer composite insulation reinforced laminated busbar structure as claimed in claim 3, wherein: The protective top frame (6) includes a main frame shell (61) and an auxiliary pressure plate (62). The auxiliary pressure plate (62) is evenly arranged at the four corners of the upper surface of the main frame shell (61), and the auxiliary pressure plate (62) is integrally formed with the main frame shell (61).

5. A multi-layer composite insulation reinforced laminated busbar structure as claimed in claim 4, wherein: The front end face of the main frame shell (61) is provided with a stepped groove (611) for installing the connecting straight lug (22) and the connecting curved lug (32). A reinforcing frame (612) for limiting the connecting straight lug (22) is provided above the stepped groove (611). The reinforcing frame (612) is integrally formed with the main frame shell (61).

6. A multi-layer composite insulation reinforced laminated busbar structure as claimed in claim 5, wherein: The protective bottom frame (7) includes a sub-frame shell (71) and a stepped pressure strip (72) corresponding to the stepped groove (611). The stepped pressure strip (72) is evenly arranged on the upper surface of the sub-frame shell (71), and the stepped pressure strip (72) and the sub-frame shell (71) are integrally formed.

7. The multilayer composite insulation-reinforced laminated busbar structure according to claim 6, characterized in that: The front end face of the stepped pressure strip (72) is provided with a reinforcing strip (721) that cooperates with the reinforcing frame (612). The reinforcing frame (612) and the reinforcing strip (721) are clamped at the upper and lower ends of the connecting straight lug (22), and the reinforcing strip (721) and the stepped pressure strip (72) are integrally formed.

8. The multilayer composite insulation-reinforced laminated busbar structure according to claim 7, characterized in that: The outer side of the sub-frame (71) is provided with a number of auxiliary support platforms (711) for supporting and connecting bent lugs (32), and the auxiliary support platforms (711) are integrally formed with the sub-frame (71).

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