Sealing and heat dissipation integrated bus duct structure

Abstract

The invention discloses a sealing and heat dissipation integrated bus duct structure, and relates to the technical field of bus duct sealing. The multiple waterproof heat dissipation pieces are installed at the four corners of the supporting frame respectively, connecting clamping grooves are formed in the ends, facing the inner side of the supporting frame, of the waterproof heat dissipation pieces, and connecting clamping heads clamped and fixed to the connecting clamping grooves are arranged at the corresponding positions of the corners of the supporting frame; the number of the inner heat dissipation pieces is two, the inner heat dissipation pieces are vertically arranged on the two opposite sides of the supporting frame respectively, and the top face of each inner heat dissipation piece is inserted between the two transversely-opposite waterproof heat dissipation pieces. A supporting frame, a waterproof heat dissipation piece, an inner heat dissipation piece and an outer heat dissipation piece are arranged, a first cavity and a second cavity are formed between the supporting frame and the inner heat dissipation piece and between the inner heat dissipation piece and the outer heat dissipation piece respectively, and a first sealing gasket and a second sealing gasket are arranged in the two cavities respectively. According to the structure, the heat dissipation channel and the sealing cavity are physically isolated and functionally integrated.

Description

Technical Field

[0001] This invention relates to the field of busbar trunking sealing technology, specifically a busbar trunking structure that integrates sealing and heat dissipation. Background Technology

[0002] Busbar trunking, as a highly efficient power transmission device, is widely used in the power distribution systems of modern buildings. Its core function is to safely and reliably transmit electrical energy from the power source to each power-consuming unit. The performance of busbar trunking directly affects the stability and safety of the entire power supply system.

[0003] Currently, the known busbar structure typically consists of a metal shell, internal conductive bars, and basic sealing components. The metal shell serves both structural support and heat dissipation / protection functions. However, due to structural design limitations, existing busbars often face the challenge of balancing heat dissipation and sealing performance during operation: strengthening the seal to prevent dust and moisture intrusion usually hinders heat dissipation from the shell, leading to excessive internal temperature rise, affecting current carrying capacity, and accelerating insulation aging; conversely, designing too many heat dissipation channels weakens overall sealing and reduces protection levels (such as IP protection rating), posing significant safety hazards, especially in harsh conditions such as humidity and dust.

[0004] To address this issue, those skilled in the art have proposed a sealed and heat-dissipating integrated busbar structure. Summary of the Invention

[0005] The purpose of this invention is to provide a bus trunking structure that integrates sealing and heat dissipation, so as to solve the technical problem in the prior art where the heat dissipation performance and sealing performance of the bus trunking are mutually constrained and difficult to effectively balance due to the limitations of the structural design.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sealed and heat-dissipating integrated busbar trunking structure, including a support frame;

[0007] Multiple waterproof heat dissipation components are installed at the four corners of the support frame. The ends of the waterproof heat dissipation components facing the inside of the support frame have connecting slots. The corners of the support frame are provided with connecting heads that engage and fix with the connecting slots.

[0008] The internal heat dissipation component consists of two components, which are vertically arranged on opposite sides of the support frame. The top surface of each internal heat dissipation component is inserted between two horizontally opposite waterproof heat dissipation components.

[0009] The external heat dissipation component consists of two components, which are vertically arranged and attached to the inner sides of the two internal heat dissipation components. The external heat dissipation component is C-shaped, and its two ends are respectively engaged and fixed inside the two horizontally opposite waterproof heat dissipation components.

[0010] A first cavity is formed between the support frame and the inner heat dissipation component, and a sealing gasket is disposed in the first cavity; a second cavity is formed between the inner heat dissipation component and the outer heat dissipation component, and a sealing gasket is disposed in the second cavity.

[0011] Preferably, the waterproof heat sink extends outward toward the support frame with a covering sheet, and the end of the outer heat sink is engaged between the covering sheet and the main body of the waterproof heat sink. An extended protective frame is fixedly connected to the two waterproof heat sinks in opposite directions along their transverse axes. The extended protective frame and the support frame form an L-shaped groove for limiting the outer heat sink and the sealing gasket.

[0012] Preferably, the inner heat dissipation component and the outer heat dissipation component are fixedly connected to the waterproof heat dissipation component by an adhesive.

[0013] Preferably, the outer surface of the external heat sink is provided with multiple heat dissipation channels.

[0014] Preferably, the waterproof heat dissipation component is fixed to the corner of the support frame, forming a corner extension structure of the support frame.

[0015] Preferably, the first sealing gasket and the second sealing gasket are made of heat-resistant elastic insulating material.

[0016] Preferably, the heat-resistant elastic insulating material is silicone rubber, fluororubber, or EPDM rubber.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention constructs a multi-layered sandwich-type sidewall structure by setting up a support frame, a waterproof heat dissipation component, an inner heat dissipation component, and an outer heat dissipation component, and forming a first cavity and a second cavity between the support frame and the inner heat dissipation component, and between the inner heat dissipation component and the outer heat dissipation component, respectively. Sealing gaskets one and two are respectively placed in the two cavities, thus creating a structure that physically isolates and functionally integrates the heat dissipation channel and the sealed cavities: on the one hand, the inner and outer heat dissipation components, together with the waterproof heat dissipation component, form an efficient three-dimensional heat dissipation path, quickly guiding internal heat to the outside; on the other hand, the two independent sealed cavities and their internal sealing gaskets form a double sealing barrier, effectively isolating external dust and moisture.

[0019] 2. In this invention, a covering sheet extends outward from the support frame from the waterproof heat dissipation component, and the end of the outer heat dissipation component is engaged between the covering sheet and the main body of the waterproof heat dissipation component. This design not only achieves rapid and accurate positioning and securing of the outer heat dissipation component, enhancing the mechanical stability of the overall structure, but also further improves the sealing performance and dustproof and waterproof rating of the side wall edges through the covering sheet.

[0020] 3. This invention features multiple heat dissipation channels formed on the outer surface of the external heat sink. These channels significantly increase the contact area between the external heat sink and the air, and guide the air to flow in a specific direction, forming effective convective heat dissipation. This allows the heat from the shell surface to be carried away more quickly, improving the overall heat dissipation efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 A structural diagram of the central support frame and waterproof heat dissipation components;

[0024] Figure 3 For the present invention Figure 1 A side view of the heat dissipation components.

[0025] In the picture:

[0026] 1. Support frame; 2. Waterproof heat dissipation component; 21. Connecting slot; 22. Connecting clip; 3. Inner heat dissipation component; 4. Outer heat dissipation component; 5. Sealing gasket one; 6. Sealing gasket two; 41. Heat dissipation guide groove. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] As attached Figure 1 To be continued Figure 3 As shown:

[0029] Example 1: The present invention provides a sealed and heat-dissipating integrated busbar trunking structure, including a support frame 1;

[0030] Multiple waterproof heat dissipation components 2 are installed at the four corners of the support frame 1. The ends of the waterproof heat dissipation components 2 facing the inside of the support frame 1 are formed with connecting slots 21. The corners of the support frame 1 are provided with connecting heads 22 that engage and fix with the connecting slots 21.

[0031] The inner heat dissipation component 3 consists of two components, which are vertically arranged on opposite sides of the support frame 1. The top surface of each inner heat dissipation component 3 is inserted between two horizontally opposite waterproof heat dissipation components 2.

[0032] External heat dissipation component 4, there are two external heat dissipation components 4, which are respectively vertically arranged and correspondingly attached to the inner side of the two internal heat dissipation components 3. The external heat dissipation component 4 is C-shaped, and its two ends are respectively snapped and fixed inside the two horizontally opposite waterproof heat dissipation components 2.

[0033] A first cavity is formed between the support frame 1 and the inner heat dissipation component 3, and a sealing gasket 5 is provided in the first cavity; a second cavity is formed between the inner heat dissipation component 3 and the outer heat dissipation component 4, and a sealing gasket 6 is provided in the second cavity.

[0034] During operation, after the busbar trunking is energized, the internal conductive bars generate heat due to resistance. This heat is first conducted to the support frame 1. In this structure, heat can be transferred from the support frame 1 to both the inner heat sink 3 and the outer heat sink 4 simultaneously. The inner heat sink 3 and the outer heat sink 4 exchange heat through contact with the air on their large surfaces, forming two parallel heat dissipation paths. Simultaneously, the first cavity between the support frame 1 and the inner heat sink 3, and the second cavity between the inner heat sink 3 and the outer heat sink 4, together constitute a physically isolated sealed buffer zone. Sealing gaskets 5 and 6 fill and seal these two cavities, effectively preventing external dust and moisture from intruding into the internal channels of the busbar trunking along the sidewall gaps. This integrated design, combining the heat dissipation structure with multi-layered sealed cavities, achieves efficient heat dissipation while ensuring a high level of sealing protection for the busbar trunking sidewalls.

[0035] 1. In one embodiment of the present invention, the waterproof heat sink 2 extends outward toward the support frame 1 with a covering sheet, the end of the outer heat sink 4 is engaged between the covering sheet and the main body of the waterproof heat sink 2, and the two waterproof heat sinks 2 are fixedly connected with an extension protection frame 23 in the opposite direction of their horizontal axes. The extension protection frame 23 and the support frame 1 form an L-shaped groove for limiting the outer heat sink 4 and the sealing gasket 5.

[0036] During assembly, the worker aligns the edges of both ends of the outer heat sink 4 and pushes it into the slot formed by the main body of the waterproof heat sink 2 and the outer covering plate extending from it. The covering plate constrains and covers the ends of the outer heat sink 4 from the outside. This covering-type locking structure not only achieves rapid and accurate positioning and mechanical locking of the outer heat sink 4 without the need for additional fasteners, simplifying the assembly process, but more importantly, the covering plate effectively physically blocks the connection gap between the outer heat sink 4 and the waterproof heat sink 2.

[0037] 2. In one embodiment of the present invention, the inner heat sink 3 and the outer heat sink 4 are fixedly connected to the waterproof heat sink 2 by an adhesive.

[0038] During operation, after inserting the inner heat sink 3 between the waterproof heat sink 2 and snapping the outer heat sink 4 into the waterproof heat sink 2, a special adhesive (such as silicone sealant, epoxy structural adhesive, etc.) is applied or poured onto their contact interface and allowed to cure. By using adhesive for fixing, the adhesive material can completely fill the microscopic unevenness and assembly gaps between the contact surfaces of each component, forming a continuous and dense sealing layer, fundamentally eliminating capillary seepage and greatly improving the long-term sealing reliability of the connection.

[0039] 3. In one embodiment of the present invention, a plurality of heat dissipation channels 41 are provided on the outer surface of the external heat dissipation component 4.

[0040] During operation, as air flows across the surface of the external heat sink 4, the heat dissipation channel 41 increases its effective contact area with the air. Simultaneously, these channels guide the air to flow more orderly in a specific direction. By setting the heat dissipation channel 41, the heat dissipation capacity of the external heat sink 4 is significantly enhanced. Firstly, this increases the efficiency of conduction and convection heat dissipation by increasing the heat dissipation area; secondly, it guides the airflow to form more effective forced or natural convection, accelerating the removal of heat accumulated on the surface of the casing.

[0041] 4. In one embodiment of the present invention, the waterproof heat dissipation component 2 is fixed to the corner of the support frame 1, forming a corner extension structure of the support frame 1.

[0042] During operation, the waterproof heat sink 2 is tightly engaged with the connecting clip 22 at the corner of the support frame 1 via the connecting slot 21, and its main body protrudes beyond the original outline of the support frame 1. By making the waterproof heat sink 2 form a corner extension structure of the support frame 1, not only is its connection function realized, but the corner of the overall frame is also strengthened, improving the local and overall structural strength and torsional stiffness.

[0043] 5. In one embodiment of the present invention, the sealing gasket 5 and the sealing gasket 6 are made of heat-resistant elastic insulating material.

[0044] During operation, the internal temperature rise of the busbar trunking during long-term operation or short-term overload will expose the adjacent sealing gaskets 5 and 6 to a high-temperature environment. The sealing gaskets, made of heat-resistant elastic insulating materials (such as heat-resistant rubber or silicone), operate in this environment. By using heat-resistant materials, the sealing gaskets are ensured to maintain their elasticity and resilience within the operating temperature range of the busbar trunking, preventing hardening, cracking, or permanent deformation due to high-temperature aging. This ensures the durability and reliability of the sealing effect of the first and second cavities.

[0045] 6. In one embodiment of the present invention, the heat-resistant elastic insulating material is silicone rubber, fluororubber, or EPDM rubber.

[0046] During operation, a rubber material with excellent overall performance is selected to manufacture the gaskets based on the specific application environment (such as temperature range, humidity, and the presence of chemical corrosion). These materials remain stable over a wide temperature range (e.g., -60℃ to above 200℃, depending on the specific type). By selecting high-performance elastomers such as silicone rubber, fluororubber, or EPDM rubber, they possess not only the necessary heat resistance but also excellent electrical insulation, weather resistance, ozone resistance, and chemical stability. This allows the gaskets to not only meet sealing and heat resistance requirements but also serve as a reliable insulating barrier.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sealed and heat-dissipating integrated busbar trunking structure, characterized in that: Including support frame (1); Multiple waterproof heat dissipation components (2) are installed at the four corners of the support frame (1). The ends of the waterproof heat dissipation components (2) facing the inside of the support frame (1) are formed with connecting slots (21). The corners of the support frame (1) are provided with connecting heads (22) that engage and fix with the connecting slots (21). The inner heat dissipation component (3) consists of two parts, which are vertically arranged on opposite sides of the support frame (1). The top surface of each inner heat dissipation component (3) is inserted between two horizontally opposite waterproof heat dissipation components (2). External heat dissipation component (4), there are two external heat dissipation components (4), which are respectively vertically arranged and attached to the inner side of the two internal heat dissipation components (3). The external heat dissipation component (4) is C-shaped, and its two ends are respectively snapped and fixed inside the two horizontally opposite waterproof heat dissipation components (2). A first cavity is formed between the support frame (1) and the inner heat sink (3), and a sealing gasket (5) is provided in the first cavity; a second cavity is formed between the inner heat sink (3) and the outer heat sink (4), and a sealing gasket (6) is provided in the second cavity.

2. The integrated sealed and heat-dissipating busbar structure according to claim 1, characterized in that: The waterproof heat sink (2) extends outward toward the support frame (1) with a covering sheet. The end of the outer heat sink (4) is engaged between the covering sheet and the main body of the waterproof heat sink (2). The two waterproof heat sinks (2) are fixedly connected with an extension protection frame (23) in the opposite direction of their horizontal axes. The extension protection frame (23) and the support frame (1) form an L-shaped groove for limiting the outer heat sink (4) and the sealing gasket (5).

3. The integrated sealed and heat-dissipating busbar structure according to claim 2, characterized in that: The inner heat dissipation component (3) and the outer heat dissipation component (4) are fixedly connected to the waterproof heat dissipation component (2) by an adhesive.

4. The integrated sealed and heat-dissipating busbar structure according to claim 1, characterized in that: The outer surface of the external heat sink (4) is provided with multiple heat dissipation channels (41).

5. The integrated sealed and heat-dissipating busbar structure according to claim 1, characterized in that: The waterproof heat dissipation component (2) is fixed to the corner of the support frame (1) and forms the corner extension structure of the support frame (1).

6. The integrated sealed and heat-dissipating busbar structure according to claim 1, characterized in that: The sealing gasket one (5) and the sealing gasket two (6) are made of heat-resistant elastic insulating material.

7. The integrated sealed and heat-dissipating busbar structure according to claim 6, characterized in that: The heat-resistant elastic insulating material is silicone rubber, fluororubber, or EPDM rubber.

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