Novel heat dissipation bus duct

Abstract

The application discloses a novel heat dissipation bus duct and relates to the technical field of power equipment. The novel heat dissipation bus duct comprises two bus duct cover plates and boss mechanisms. One boss mechanism is arranged on each bus duct cover plate. Two bus duct outer plates are arranged between the two bus duct cover plates. A double-cavity structure is arranged between the two bus duct outer plates. Two bus duct copper bars are arranged in each cavity of the double-cavity structure. The novel heat dissipation bus duct significantly improves the heat isolation capacity between conductors, avoids heat accumulation between copper bars, effectively widens the heat conduction and diffusion path, and improves the overall heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and specifically to a novel heat dissipation busbar trunking. Background Technology

[0002] In power transmission and distribution systems, busbar trunking serves as a crucial conductive carrier, widely used in large industrial plants, commercial buildings, and infrastructure projects. Existing busbar trunking products typically employ a single-cavity structure, meaning all conductive copper busbars are arranged within a closed cavity. In these cases, the three-phase five-wire copper busbars are densely packed, and for basic thermal management, heat dissipation relies solely on the aluminum profiles on both sides of the busbar trunking.

[0003] However, this structure exhibits significant thermal performance bottlenecks in actual operation. On one hand, due to the tight fit between the copper busbars and the lack of sufficient heat diffusion space, heat concentrates locally and is difficult to conduct quickly to the aluminum profile heat dissipation surface, thus reducing overall heat dissipation efficiency. On the other hand, the single-cavity structure restricts the spatial arrangement of natural and forced convection, resulting in a single heat dissipation path. Under continuous high-current load conditions, the temperature rise problem of the busbar trunking becomes more prominent, and long-term operation may lead to conductor insulation aging or even safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a novel heat dissipation busbar trunking to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel heat dissipation busbar trunking, comprising:

[0006] Two busbar trunking covers;

[0007] A boss mechanism is provided on each of the busbar trunking covers;

[0008] Two busbar trunking outer plates are provided between the two busbar trunking cover plates;

[0009] A double-cavity structure is provided between the two outer plates of the busbar trunking, and two busbar trunking copper busbars are provided in each cavity of the double-cavity structure.

[0010] Preferably, the two busbar trunking covers are arranged symmetrically at the center.

[0011] Preferably, each of the two busbar trunking covers is provided with a boss mechanism, and the two boss mechanisms are symmetrical to each other on the busbar trunking covers.

[0012] Preferably, an inner busbar trough plate is provided between the busbar trough cover plates, and the inner busbar trough plate is located between the two outer busbar trough plates.

[0013] Preferably, the inner plate and outer plate of the busbar trunking form a double-cavity structure.

[0014] Preferably, the busbar trunking cover plate has a waterproof groove.

[0015] Preferably, the boss mechanism is a protruding structure.

[0016] Preferably, the outer plate of the busbar trunking and the cover plate of the busbar trunking are installed through a waterproof groove, and a sealing strip is installed at the connection between the outer plate of the busbar trunking and the cover plate of the busbar trunking.

[0017] As can be seen from the above technical solution, the present invention has the following beneficial effects:

[0018] This novel heat-dissipating busbar trunking features a dual-cavity structure between the outer plates, with two copper busbars arranged in each cavity. This significantly improves the thermal isolation between conductors, preventing heat accumulation between the copper busbars and effectively widening the heat conduction and diffusion paths, thus enhancing overall heat dissipation efficiency. The addition of a boss mechanism on the busbar trunking cover plate creates a larger heat exchange area, enhancing natural convection and radiation heat dissipation. It also provides a structural interface for the subsequent addition of forced air cooling devices, helping the busbar trunking maintain stable operation under high current conditions. The addition of an inner plate between the busbar trunking cover plates creates a dual-cavity structure, strengthening the mechanical properties of the busbar trunking and further refining the conductor cavity division, thus improving the heat dissipation channels. With its controllability and efficient heat flow organization, the busbar trunking cover and boss mechanism are arranged in a centrally symmetrical manner, resulting in a more uniform heat field distribution during installation and operation, avoiding localized overheating, and improving the conductor's current carrying capacity and temperature rise control stability. The busbar trunking cover is equipped with a waterproof groove, and the outer plate and cover are installed through the waterproof groove. A sealing strip is also installed at the connection, significantly enhancing the waterproof and dustproof performance of the equipment. It adapts to complex and ever-changing industrial and building environments and effectively extends the service life of the system. This new type of heat dissipation busbar trunking, through structural innovation and functional integration, systematically solves the problems of low heat dissipation efficiency and significant safety hazards of traditional busbar trunking under high current carrying conditions. It has excellent heat dissipation performance, good environmental adaptability, and broad application prospects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] In the diagram: 1. Busbar trunking cover plate; 2. Boss mechanism; 3. Busbar trunking outer plate; 4. Double cavity structure; 5. Busbar trunking copper busbar; 6. Busbar trunking inner plate; 7. Sealing strip. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, the present invention provides a technical solution: a novel heat dissipation busbar trunking, comprising: two busbar trunking cover plates 1; a boss mechanism 2, wherein each of the busbar trunking cover plates 1 is provided with a boss mechanism 2; two busbar trunking outer plates 3 are provided between the two busbar trunking cover plates 1; a double cavity structure 4 is provided between the two busbar trunking outer plates 3, wherein each cavity of the double cavity structure 4 is provided with two busbar trunking copper busbars 5.

[0023] The heat dissipation busbar trunking employs two busbar trunking cover plates 1 positioned vertically. By integrating a boss mechanism 2 onto each cover plate 1, the structural strength of the cover plate is effectively enhanced, and its contact area with air is increased, thus improving heat convection performance. The busbar trunking cover plates 1 are connected by two outer busbar trunking plates 3, forming an overall enclosed structure that effectively protects the internal conductive components from external interference. A double-cavity structure 4 is provided within the space formed between the two outer busbar trunking plates 3. Two busbar trunking copper busbars 5 are arranged in each of the two cavities of the double-cavity structure 4. This compartmentalized arrangement effectively improves the independence of the heat dissipation path and the efficiency of heat conduction. As the core component for current conduction, the copper busbars 5, arranged within a closed and heat-optimized cavity, ensure good electrical and thermal performance even under high loads.

[0024] This invention achieves partitioned isolation of the busbars through a dual-cavity structure 4, reducing electromagnetic interference and heat concentration issues. Simultaneously, the protrusion mechanism 2 on the cover plate 1 effectively improves heat dissipation efficiency. Compared to traditional single-cavity busbar trunking, this structure significantly enhances heat dissipation and electrical safety, effectively extends the service life of the copper busbars 5, and reduces the risk of insulation aging caused by heat accumulation. Furthermore, this structure also contributes to improved overall assembly precision and strength, making it suitable for various high-current load applications.

[0025] In practical applications, the boss mechanism 2 can adopt various heat dissipation methods, such as heat dissipation fins or striped ventilation holes, to adapt to different heat dissipation requirements. The outer plate 3 of the busbar trunking can be made of materials with different thermal conductivity, such as aluminum alloy or composite materials, to optimize cost and heat dissipation efficiency. The number of cavities in the dual-cavity structure 4 can also be adjusted to three or more cavities according to specific current requirements, and the number of copper busbars 5 in each cavity can also be appropriately increased or decreased. In addition, the copper busbars 5 can be selected with different cross-sectional shapes (such as rectangles or rounded rectangles) to adapt to different wiring and conductivity requirements. For the connection method, the busbar trunking cover plate 1 and the outer plate 3 can be connected by screws, snap-fit ​​connections, or riveting, etc., to enhance assembly flexibility and facilitate maintenance.

[0026] The two busbar trunking cover plates 1 are arranged symmetrically at the center. In this embodiment, the two busbar trunking cover plates 1 are arranged symmetrically at the center, that is, with the longitudinal axis of the busbar trunking as the axis of symmetry, making the two cover plates 1 completely symmetrical in shape, size, and position. This symmetrical structural design makes the overall distribution of mechanical stress, heat diffusion path, and electromagnetic field of the busbar trunking more balanced, which helps to reduce the problem of thermal stress concentration and local overheating caused by structural asymmetry. At the same time, it helps with positional alignment during assembly, improving manufacturing consistency and assembly efficiency.

[0027] By employing a centrally symmetrical cover plate structure, the busbar trunking exhibits enhanced mechanical strength and structural stability, particularly under high current density and high temperature conditions, effectively reducing structural deformation caused by thermal expansion and contraction. Furthermore, the symmetrical design improves heat dissipation uniformity, resulting in a more consistent temperature distribution among the copper busbars within the dual-cavity structure 4, thereby extending the service life of electrical components and enhancing operational reliability. In terms of manufacturing, the symmetrical structure facilitates standardized production, reduces processing and assembly deviations, and improves production efficiency.

[0028] Based on this symmetrical arrangement, the boss mechanism 2 can be further designed symmetrically on the cover plate 1, for example, by using a mirrored arrangement of heat sinks, to further enhance the overall symmetry and heat dissipation effect. If structural or functional requirements change, local asymmetrical optimizations can also be made based on the symmetrical design, such as setting a signal access point or maintenance channel on only one side. In addition, for certain application scenarios, central symmetry can be extended along the central axis of the busbar cross-section to adapt to different equipment space layout requirements.

[0029] Each of the two busbar trunking cover plates 1 is provided with a boss mechanism 2, and the two boss mechanisms 2 are symmetrical to each other on the busbar trunking cover plate 1. In this embodiment, each busbar trunking cover plate 1 is provided with a boss mechanism 2, and the two boss mechanisms 2 are arranged symmetrically in the overall structure. This symmetrical arrangement can adopt a mirror structure with the longitudinal or transverse center line of the busbar trunking as the reference line, so that the two boss mechanisms 2 are mirror-corresponding in position, size, shape and function. This symmetrical boss mechanism design not only enhances the heat dissipation function, but also effectively improves the overall heat exchange efficiency through the symmetrical configuration of the convection channels. At the same time, the symmetrical structure also improves the structural balance of the cover plate, which helps to offset the uneven distribution of thermal stress during operation.

[0030] Compared to busbar structures with bosses on only one side, this invention achieves a more balanced heat dissipation path and optimized airflow distribution by symmetrically arranging bosses 2 on two cover plates 1. The symmetrical boss structure also effectively improves heat conduction efficiency and enhances thermal stability under high-temperature conditions. Simultaneously, it improves product appearance consistency and installation adaptability, facilitating installation and connection from any direction. This structure also enhances the cover plate's resistance to deformation, contributing to a longer overall structural lifespan.

[0031] The boss mechanism 2 can be designed in various specific forms, such as multiple symmetrically arranged heat dissipation fins, corrugated reinforcing ribs, or ventilation slots. Symmetry can be achieved through central axis symmetry, diagonal symmetry, or other methods to suit specific busbar installation requirements. The shape of the boss can also be adjusted according to different heat dissipation intensity requirements, such as being semi-circular, trapezoidal, or strip-shaped structures. For certain space-constrained applications, irregularly shaped or partially symmetrical bosses can be arranged to maintain heat dissipation efficiency while accommodating external interface placement.

[0032] A busbar trunking inner plate 6 is provided between the busbar trunking cover plates 1, and the inner plate 6 is located between the two busbar trunking outer plates 3. In this embodiment, by adding a busbar trunking inner plate 6 between the two busbar trunking cover plates 1 and arranging the inner plate 6 between the two busbar trunking outer plates 3, that is, in the middle region of the busbar trunking structure, the inner plate 6 serves as an internal support and isolation structure. Its main function is to effectively divide the internal space of the busbar trunking while maintaining the overall stability of the structure. This structure helps to fix and constrain the position of the copper busbars 5 in the double-cavity structure 4, preventing displacement or poor contact of the copper busbars due to vibration or thermal expansion and contraction during operation. At the same time, the inner plate 6 can also serve as a heat conduction auxiliary structure to enhance heat exchange between various parts.

[0033] The addition of the inner plate 6 to the busbar trunking significantly improves the overall stability and deformation resistance of the busbar trunking structure, especially under high current and high temperature operating environments, effectively reducing the risk of structural displacement caused by thermal expansion and contraction. The inner plate 6 also enhances the support and isolation effect of the internal copper busbars 5, further reducing electromagnetic interference and improving wiring safety. Furthermore, the inner plate 6 acts as a heat conduction bridge, effectively guiding heat from the internal cavity to the external structure, thereby enhancing overall heat dissipation performance. During manufacturing and assembly, the addition of the inner plate 6 provides a more precise installation reference for internal components, improving assembly efficiency and consistency.

[0034] The inner plate 6 of the busbar trunking can be made of different materials, such as aluminum alloy, steel plate, and composite thermally conductive materials, to meet different structural strength and heat dissipation requirements. Its shape can also be varied according to the cavity structure, such as being a flat plate, a grid-like structure with ventilation holes, or a reinforcing rib structure to optimize heat dissipation, ventilation performance, and mechanical properties. In terms of installation methods, the inner plate 6 can be welded, fixed with screws, or embedded in the slot, with the specific method chosen based on manufacturing process and ease of future maintenance. Furthermore, the inner plate 6 can also be designed as a detachable structure to facilitate copper busbar maintenance and structural inspection.

[0035] The inner plate 6 and outer plate 3 of the busbar trunking form a double-cavity structure 4. In this embodiment, the inner plate 6 not only serves as support and partition but also, together with the two outer plates 3, constitutes the double-cavity structure 4. Specifically, the inner plate 6 is located in the middle of the busbar trunking structure, forming two closed or semi-closed cavities with the outer plates 3 on the left and right sides, thus creating a symmetrical double-cavity structure. This design allows each cavity to independently accommodate and house copper busbars 5, while the cavities are physically isolated by the inner plate 6, ensuring a safe insulation distance between the copper busbars and enhancing the rigidity and heat dissipation symmetry of the structure. The inner plate 6 can also function as a heat conduction medium, helping to balance the heat load on both sides of the cavity.

[0036] The inner plate 6 and outer plate 3 of the busbar trunking are combined to form a double-cavity structure 4, making the cavity structure more compact and rationally laid out, thus improving the structural strength, heat dissipation uniformity, and electrical isolation effect of the busbar trunking. Compared with the traditional method of constructing a double cavity using independent supports or plastic partitions, this design, while ensuring insulation performance, also has greater mechanical strength and high-temperature resistance, effectively preventing structural damage caused by material aging. In addition, the thermal conductivity of the metal inner plate 6 is much higher than that of the insulating material, which helps to accelerate heat conduction and reduce the local temperature rise of the copper busbars, thereby improving the stability and safety of the entire busbar trunking system.

[0037] The connection between the inner plate 6 and the outer plate 3 of the busbar trunking can be achieved through welding, riveting, screws, or snap-fit ​​structures. Alternatively, it can be formed into an integrated structure through stamping to improve manufacturing efficiency and stability. The cavity shape of the dual-cavity structure 4 can be adjusted to a rectangular, trapezoidal, or asymmetrical structure according to the copper busbar layout requirements. The inner plate 6 can be designed as a detachable structure for easy inspection and maintenance of the copper busbars. For higher heat dissipation requirements, ventilation holes, heat-conducting grooves, or embedded heat-conducting materials can be provided on the inner plate 6 or the outer plate 3 to enhance heat dissipation capacity. Furthermore, each cavity in the dual-cavity structure 4 can also be equipped with multiple layers of copper busbars or staggered wiring to adapt to different current levels or application scenarios.

[0038] A waterproof groove is provided on the busbar trunking cover plate 1. In this embodiment, a waterproof groove is provided on the surface of the busbar trunking cover plate 1. This groove typically extends along the length of the busbar trunking cover plate, and its depth and width are designed according to waterproofing requirements. The waterproof groove is mainly used to guide condensate or rainwater on the surface of the cover plate to drain in a specific direction, preventing moisture from accumulating on the surface of the cover plate or seeping into the interior of the busbar trunking. Through the guiding effect of the groove, a closed or semi-closed drainage channel can be formed. Combined with the slope set on both sides of the groove, the active guidance of water flow can be effectively realized. This structure is particularly critical at the sealing or joint parts of the cover plate, which can enhance the overall protective performance of the structure.

[0039] By creating waterproof grooves in the busbar trunking cover plate 1, the overall waterproof capability of the busbar trunking is effectively improved, making it particularly suitable for environments with high humidity, heavy rainfall, or a risk of condensation. The waterproof grooves effectively prevent moisture from entering the busbar trunking cavity, avoiding moisture damage to the internal copper busbars 5 or short circuits, thus enhancing the operational safety of the electrical system. Furthermore, the grooves do not affect the structural strength of the cover plate and can be used in conjunction with sealing strips, sealants, and other auxiliary materials to further enhance the protection level, meeting IP55 and higher standards. For users, this design significantly reduces the frequency of daily maintenance and equipment failure rate, improving system reliability and service life.

[0040] The shape of the waterproof groove can be designed as U-shaped, V-shaped, stepped, or irregular cross-section according to different drainage requirements. Its location can be in the center, sides, or edge area of ​​the cover plate 1, or multiple grooves can be arranged in parallel. Waterproof strips or drainage guide layers can be added inside the groove to improve sealing and drainage capacity. If the busbar trunking needs to withstand high-intensity moisture environments, raised edges or waterproof folds can be added to the cover plate structure to form a composite drainage structure in conjunction with the groove. The waterproof groove can be processed by stamping, rolling, or extrusion molding to adapt to different production processes and batch requirements.

[0041] The boss mechanism 2 is a protruding structure. In this embodiment, the boss mechanism 2 is specifically designed as a protruding structure, directly protruding outward from the surface of the busbar trunking cover plate 1. This protruding structure can be strip-shaped, corrugated, hemispherical, or other three-dimensional geometric shapes. By changing the surface structure characteristics, it effectively increases the external surface area of ​​the busbar trunking cover plate 1 and improves the heat exchange efficiency with the ambient air. The protruding structure not only improves airflow conditions and promotes the natural convection cooling process, but also provides a certain strengthening effect in terms of structure, preventing the cover plate from deforming under high temperature and high load conditions.

[0042] The use of a raised structure as the boss mechanism 2 not only simplifies the structural design and manufacturing process but also significantly improves the heat dissipation performance of the busbar trunking. Compared to a flat cover design, the raised structure increases the heat exchange area, enhancing the natural heat dissipation capacity of the busbar trunking during operation, effectively reducing the temperature rise of the internal copper busbars 5, and improving the thermal stability and electrical safety of the entire system. Furthermore, the raised structure also provides some protection against water accumulation, facilitating the drainage of water in outdoor or humid environments, thereby improving the equipment's protection level and service life. This structural form is highly adaptable and easy to implement in various specifications and models of busbar trunking products.

[0043] The specific protrusion form of the boss mechanism 2 can be adjusted according to different application requirements. For example, it can be designed as dense parallel heat dissipation fins, spiral reinforcing ribs, or locally raised circular protrusions to achieve different functions of heat dissipation enhancement or structural reinforcement. For applications with high heat dissipation requirements, the protrusion surface can be covered with a thermally conductive coating or have micro-ventilation holes to further improve heat exchange efficiency. If both appearance and function need to be considered, the protrusion structure can be modularly designed for easy replacement or maintenance. At the same time, the protrusion can be combined with a waterproof structure, such as a design with a waterproof groove, to form a function of preventing water accumulation and diverting water.

[0044] The outer plate 3 of the busbar trunking and the cover plate 1 are installed via a waterproof groove, and a sealing strip 7 is installed at the connection between the outer plate 3 and the cover plate 1. In this embodiment, the connection structure between the outer plate 3 and the cover plate 1 is further optimized. A waterproof groove structure is used as the installation base at the connection, and the two are tightly connected by the locking or fitting of the groove. At the same time, a sealing strip 7 is embedded at the connection interface to enhance the waterproof sealing performance. The waterproof groove serves as a structural positioning and drainage channel, and its internal shape is set to match the edge of the cover plate or the edge of the outer plate to ensure a stable connection during installation. Placing the sealing strip 7 at the bottom of the groove or between the groove and the contact surface of the plate can prevent rainwater, moisture, or dust from entering the interior of the busbar trunking, effectively protecting the working environment of electrical components such as the copper busbar 5.

[0045] This embodiment significantly improves the protection level of the busbar trunking by incorporating a waterproof groove and a sealing strip 7 at the junction of the outer plate 3 and the cover plate 1. It is particularly suitable for outdoor or humid environments with high dust and water resistance requirements. The waterproof groove serves as structural guidance and initial barrier, while the sealing strip 7 further enhances airtightness and watertightness, preventing moisture ingress that could cause copper busbar corrosion or insulation degradation. This combined structure offers excellent sealing, durability, and structural stability, reducing maintenance frequency, extending equipment lifespan, and improving overall system reliability and safety.

[0046] The waterproof groove can be designed in various forms, such as a rectangular groove, an inverted groove, or a V-shaped groove. The sealing strip 7 can be made of materials such as rubber, silicone, or polyurethane foam, depending on the temperature, humidity, and chemical corrosivity of the working environment. The cross-sectional shape of the sealing strip 7 can be circular, trapezoidal, hollow D-shaped, or composite to improve the compression sealing effect. For installation, prefabrication, on-site installation, or adhesive bonding can be used to adapt to different production or maintenance processes. For higher levels of protection, a double-layer sealing structure or the application of waterproof sealant within the groove can further enhance reliability.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel heat dissipation busbar trunking, characterized in that, include: Two busbar trunking covers (1); A boss mechanism (2) is provided on each of the busbar trunking covers (1); Two busbar trunking outer plates (3) are provided between the two busbar trunking cover plates (1); A double-cavity structure (4) is provided between the two outer plates (3) of the busbar trunking, and two busbar trunking copper busbars (5) are provided in each cavity of the double-cavity structure (4).

2. The novel heat dissipation busbar trunking according to claim 1, characterized in that: The two busbar trunking covers (1) are arranged symmetrically at the center.

3. The novel heat dissipation busbar trunking according to claim 1, characterized in that: Each of the two busbar trunking covers (1) is provided with a boss mechanism (2), and the two boss mechanisms (2) are symmetrical to each other on the busbar trunking covers (1).

4. The novel heat dissipation busbar trunking according to claim 1, characterized in that: A busbar trunking inner plate (6) is provided between the busbar trunking cover plates (1), and the busbar trunking inner plate (6) is located between the two busbar trunking outer plates (3).

5. A novel heat dissipation busbar trunking according to claim 4, characterized in that: The inner plate (6) and outer plate (3) of the busbar trunking form a double-cavity structure (4).

6. The novel heat dissipation busbar trunking according to claim 1, characterized in that: The busbar cover plate (1) is provided with a waterproof groove.

7. A novel heat dissipation busbar trunking according to claim 1, characterized in that: The boss mechanism (2) is a protruding structure.

8. A novel heat dissipation busbar trunking according to claim 6, characterized in that: The outer plate (3) of the busbar trunking and the cover plate (1) of the busbar trunking are installed through a waterproof groove, and a sealing strip (7) is installed at the connection between the outer plate (3) of the busbar trunking and the cover plate (1).

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