A double-cavity volcanic rock mineral insulated fire-resistant bus duct structure

Abstract

This utility model discloses a double-cavity volcanic rock mineral-insulated fire-resistant busbar structure, including side plates, cover plates bolted to the top and bottom of the side plates, and multiple copper busbars. A heat dissipation plate is engaged with the inner walls of the two side plates near the center, dividing the interior into a main cavity and an auxiliary cavity arranged vertically. The main cavity is filled with a volcanic rock insulation layer, which wraps around the outer walls of the multiple copper busbars. This utility model, by creating a double-cavity busbar structure, utilizes the main cavity and auxiliary cavity to form a double fire barrier, improving the overall fire resistance. Furthermore, the auxiliary cavity contains cooperating heat-conducting fins and volcanic rock particles to enhance natural heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of busbar application technology, and in particular to a double-cavity volcanic rock mineral insulated fire-resistant busbar structure. Background Technology

[0002] With the emergence of modern engineering facilities and equipment, electricity consumption in all industries has increased rapidly. In particular, with the emergence of numerous high-rise buildings and large factory workshops, traditional cables, as power transmission conductors, can no longer meet the requirements of high-current transmission systems. The parallel use of multiple cables has brought many inconveniences to on-site installation and construction. As a new type of power distribution conductor, plug-in busbar trunking has emerged.

[0003] Traditional busbar trunking is prone to short circuits or leakage due to insulation material failure in extreme environments such as fires, posing safety hazards. Existing fire-resistant busbar trunking mostly adopts a single-cavity structure, which has insufficient heat dissipation performance and limited high-temperature resistance of the insulation material. In addition, the single-cavity structure causes interference between conductor heat dissipation and insulation protection, affecting overall stability. Therefore, this utility model proposes a double-cavity volcanic rock mineral insulated fire-resistant busbar trunking structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a double-cavity volcanic rock mineral insulated fire-resistant busbar structure. By setting the busbar with two cavities, the main cavity and the auxiliary cavity form a double fire barrier, which improves the overall fire resistance effect. Furthermore, the auxiliary cavity is equipped with heat-conducting fins and volcanic rock particles that cooperate with each other, which can improve the natural heat dissipation efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a double-cavity volcanic rock mineral insulated fire-resistant busbar structure is provided, including side plates, cover plates bolted to the top and bottom of the side plates, and multiple copper busbars. The inner walls of the two side plates are engaged with heat dissipation plates near the middle position, and the heat dissipation plates divide the interior into a main cavity and an auxiliary cavity arranged in parallel. The main cavity is filled with a volcanic rock insulation layer, and the volcanic rock insulation layer wraps around the outer wall of the multiple copper busbars.

[0006] The present invention is further configured such that: a plurality of ventilation slots are evenly provided on the side wall of the side plate near the middle position, and a plurality of ventilation holes are symmetrically provided on the side wall of the side plate near the top position, and the plurality of ventilation holes are all inclined.

[0007] The above technical solution utilizes multiple ventilation slots to facilitate the entry of external air, thereby removing internal heat. At the same time, ventilation holes, in conjunction with heat dissipation holes, can carry away a large amount of heat, thereby further reducing the overall temperature.

[0008] The present invention is further configured such that: the cover plate located at the upper part is evenly provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are arranged at equal intervals.

[0009] The above technical solution facilitates the dissipation of internal heat through multiple heat dissipation holes, utilizing the principle of rising high-temperature air to expel heat.

[0010] The present invention is further configured such that: the heat dissipation plate includes a heat-conducting plate installed inside the side plate; the side wall of the heat-conducting plate is symmetrically fixedly connected with a plurality of positioning blocks, and the heat-conducting plate is engaged with a positioning slot opened on the side wall of the side plate by the plurality of positioning blocks; and the top of the heat-conducting plate is uniformly fixedly connected with a plurality of heat dissipation fins.

[0011] The above technical solution utilizes positioning slots to secure the heat-conducting plate to the side plate, and multiple heat dissipation fins facilitate rapid dissipation of absorbed heat, thereby improving heat dissipation efficiency.

[0012] The present invention is further configured such that: the bottom of the heat-conducting plate is tightly attached to the volcanic rock insulation layer, and the contact surface is provided with a heat-absorbing coating.

[0013] The above technical solution facilitates the rapid absorption and transfer of heat transferred to the volcanic insulating layer using a heat-absorbing coating, thus enabling rapid heat dissipation.

[0014] The present invention is further configured such that the multiple heat dissipation fins are arranged in multiple groups, and each group of heat dissipation fins is arranged in a herringbone shape, and the gaps between the multiple heat dissipation fins are filled with volcanic rock particles.

[0015] The above technical solution utilizes a herringbone design to create a continuous flow channel when convective air enters the interior of multiple heat dissipation fins, causing the airflow to generate a rotating vortex between the heat dissipation fins and enhancing convective heat transfer.

[0016] The present invention is further configured such that: the end face of the cover plate is symmetrically bolted with end caps, and the two end caps are respectively sleeved on the outer wall of multiple copper busbars, and multiple dustproof holes are opened at the corresponding positions of the auxiliary cavity.

[0017] The above technical solution facilitates the use of end caps to fix the position of the copper busbars to be installed, thereby making it easier to fill the interior with volcanic rock.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The present invention proposes a double-cavity volcanic rock mineral insulated fire-resistant busbar structure, which improves the overall fire resistance by setting the busbar with two cavities and using the main cavity and auxiliary cavity to form a double fire barrier.

[0020] 2. The dual-cavity volcanic rock mineral insulated refractory busbar structure proposed in this utility model improves the natural heat dissipation efficiency by setting mutually cooperating heat-conducting fins and volcanic rock particles inside the auxiliary cavity. Attached Figure Description

[0021] Figure 1 This is the first structural diagram of a double-cavity volcanic rock mineral insulated refractory busbar trunking structure according to the present invention;

[0022] Figure 2 This is a second structural diagram of a double-cavity volcanic rock mineral insulated refractory busbar trunking structure according to the present invention;

[0023] Figure 3 This is an exploded view of a double-cavity volcanic rock mineral insulated refractory busbar structure according to this utility model;

[0024] Figure 4 This is a structural diagram of the side plate in a double-cavity volcanic rock mineral insulated refractory busbar trunking structure of this utility model;

[0025] Figure 5 This is a structural diagram of the heat dissipation plate in a double-cavity volcanic rock mineral insulated fire-resistant busbar structure of this utility model.

[0026] In the diagram: 1. Side plate; 11. Positioning slot; 12. Ventilation slot; 13. Ventilation hole; 2. Cover plate; 21. Heat dissipation hole; 3. Copper busbar; 4. Volcanic rock insulation layer; 5. Heat sink; 51. Heat conduction plate; 52. Positioning block; 53. Heat dissipation fins; 6. End cap; 61. Dustproof hole. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0028] like Figures 1-4As shown, a double-cavity volcanic rock mineral insulated fire-resistant busbar structure includes a side plate 1. Multiple ventilation slots 12 are evenly distributed on the side wall of the side plate 1 near the center. Multiple ventilation holes 13 are symmetrically distributed on the side wall of the side plate 1 near the top. All ventilation holes 13 are inclined. The ventilation slots 12 facilitate the entry of external air, thereby removing internal heat. Simultaneously, the ventilation holes 13, in conjunction with heat dissipation holes 21, carry away a large amount of heat, further reducing the overall temperature. A cover plate 2 and multiple copper busbars 3 are bolted to the top and bottom of the side plate 1. Multiple heat dissipation holes 21 are evenly distributed on the upper cover plate 2, arranged at equal intervals to facilitate the dissipation of internal heat. Heat is dissipated using the principle of rising high-temperature air. Heat dissipation plates 5 are engaged and connected to the inner walls of the two side plates 1 near the center, dividing the interior into a main cavity and an auxiliary cavity arranged vertically.

[0029] like Figures 3-5 As shown, the heat sink 5 includes a heat-conducting plate 51 installed inside the side plate 1. The bottom of the heat-conducting plate 51 is tightly attached to the volcanic rock insulation layer 4, and the contact surface is provided with a heat-absorbing coating. This facilitates the rapid absorption and transfer of heat transferred to the volcanic rock insulation layer 4, enabling rapid heat dissipation. Multiple positioning blocks 52 are symmetrically fixed to the side wall of the heat-conducting plate 51, and are engaged with positioning slots 11 on the side wall of the side plate 1. Multiple heat dissipation fins 53 are evenly fixed to the top of the heat-conducting plate 51. The positioning slots 11 secure the heat-conducting plate 51 to the side plate 1, and the multiple heat dissipation fins 53 facilitate rapid dissipation of absorbed heat, improving heat dissipation efficiency. The main cavity is filled with... A volcanic rock insulation layer 4 is provided, and the volcanic rock insulation layer 4 wraps around the outer wall of multiple copper busbars 3. Multiple heat dissipation fins 53 are arranged in multiple groups, and each group of heat dissipation fins 53 is arranged in a herringbone shape. The gaps between multiple heat dissipation fins 53 are filled with volcanic rock particles. The herringbone arrangement allows convective air to form a continuous flow channel when it enters the interior of multiple heat dissipation fins 53, so that the airflow generates a rotating vortex between the heat dissipation fins 53, which enhances convective heat transfer. The end face of the cover plate 2 is symmetrically bolted with end caps 6, and the two end caps 6 are respectively fitted onto the outer wall of multiple copper busbars 3. At the same time, multiple dustproof holes 61 are opened at the corresponding positions of the auxiliary cavity, so as to use the end caps 6 to fix the position of the copper busbars 3 to be installed, thereby facilitating the filling of the interior with volcanic rock.

[0030] In use, this utility model first sets up a main cavity and an auxiliary cavity arranged vertically inside the entire busbar trunking to improve the overall fire resistance and insulation effect. The heat dissipation fins 53 on the heat-conducting plate 51 can quickly dissipate the heat. The herringbone arrangement allows the convective air to form a continuous flow channel when it enters the interior of the heat dissipation fins 53, so that the airflow generates a rotating vortex between the heat dissipation fins 53, which enhances the convective heat transfer. Furthermore, the multiple inclined ventilation holes 13 and heat dissipation holes 21 can further improve the heat dissipation efficiency inside.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A double-cavity volcanic rock mineral insulated refractory busbar structure, comprising a side plate (1), a cover plate (2) bolted to the top and bottom of the side plate (1), and a plurality of copper busbars (3), characterized in that: The inner walls of the two side plates (1) are engaged with heat dissipation plates (5) near the middle position, and the interior is divided into a main cavity and an auxiliary cavity arranged in parallel. The main cavity is filled with a volcanic rock insulation layer (4), and the volcanic rock insulation layer (4) wraps around the outer walls of multiple copper busbars (3).

2. The double-cavity volcanic rock mineral insulated refractory busbar structure according to claim 1, characterized in that: The side wall of the side plate (1) has a plurality of ventilation slots (12) evenly provided near the middle position, and the side wall of the side plate (1) has a plurality of ventilation holes (13) symmetrically provided near the top position, and the plurality of ventilation holes (13) are all inclined.

3. The double-cavity volcanic rock mineral insulated refractory busbar structure according to claim 1, characterized in that: The cover plate (2) located at the top is evenly provided with a plurality of heat dissipation holes (21), and the plurality of heat dissipation holes (21) are arranged at equal intervals.

4. The double-cavity volcanic rock mineral insulated refractory busbar structure according to claim 1, characterized in that: The heat sink (5) includes a heat-conducting plate (51) installed inside the side plate (1). The side wall of the heat-conducting plate (51) is symmetrically fixedly connected with multiple positioning blocks (52), and the multiple positioning blocks (52) are engaged with the positioning slots (11) opened on the side wall of the side plate (1). The top of the heat-conducting plate (51) is uniformly fixedly connected with multiple heat dissipation fins (53).

5. The double-cavity volcanic rock mineral insulated refractory busbar structure according to claim 4, characterized in that: The bottom of the heat-conducting plate (51) is tightly attached to the volcanic rock insulation layer (4), and the contact surface is provided with a heat-absorbing coating.

6. The double-cavity volcanic rock mineral insulated refractory busbar structure according to claim 4, characterized in that: The multiple heat dissipation fins (53) are arranged in multiple groups, and each group of heat dissipation fins (53) is arranged in a herringbone shape, and the gaps between the multiple heat dissipation fins (53) are filled with volcanic rock particles.

7. The double-cavity volcanic rock mineral insulated refractory busbar structure according to claim 1, characterized in that: The end face of the cover plate (2) is symmetrically bolted with end caps (6), and the two end caps (6) are respectively sleeved on the outer wall of multiple copper busbars (3), and multiple dustproof holes (61) are opened at the corresponding positions of the auxiliary cavity.

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