Bus duct

Abstract

The utility model relates to current transmission technical field provides a bus duct, include: fireproof shell and fire -resisting structure, fireproof shell is used for containing conducting strip, fireproof shell includes: a pair of parallelly arranged first board body and a pair of parallelly arranged second board body, second board body is perpendicularly arranged with first board body, and two ends of each second board body are respectively with a first board body detachable connection, and first board body and second board body are all fireproof board body, fire -resisting structure is set up in the outside of fireproof shell, and fire -resisting structure includes: a pair of clamping pieces and a plurality of fire -resisting package, a pair of clamping pieces are oppositely arranged in the outside of fireproof shell and are connected to form fixed sleeve, and a plurality of fire -resisting package are arranged on each surface of fixed sleeve. The bus duct can prevent fire from invading the fireproof shell, effectively improve the fire safety performance of the bus duct, and effectively isolate the fire source when a fire occurs, preventing the fire from spreading to the entire bus duct and protecting power transmission from being affected.

Description

Technical Field

[0001] This utility model relates to the field of current transmission technology, and in particular to a busbar trunking. Background Technology

[0002] Busbar trunking is a closed metal structure made of copper or aluminum busbars, primarily used for high-power distribution of electrical energy to various electrical components in distributed power systems. In recent years, busbar trunking has gradually replaced traditional wires and cables in indoor low-voltage power transmission trunk line projects, becoming one of the mainstream power distribution methods. However, existing busbar trunking has significant drawbacks in high-temperature environments such as fires: when a fire occurs nearby, the busbar trunking structure is susceptible to combustion due to high temperatures, leading to internal insulation damage and power transmission interruption, thereby exacerbating the fire risk and affecting the safety and continuity of the power supply system. Therefore, providing a busbar trunking with highly efficient fireproof and flame-retardant properties has become a critical issue urgently needing to be addressed in this technical field. Utility Model Content

[0003] This utility model provides a busbar trunking system to address the deficiency of existing busbar trunking systems that do not have fireproofing capabilities.

[0004] This utility model provides a busbar trunking, comprising: a fireproof shell for accommodating conductive bars, the fireproof shell comprising: a pair of parallel first plates and a pair of parallel second plates, the second plates being perpendicular to the first plates, each of the two ends of the second plates being detachably connected to one of the first plates, both the first plates and the second plates being fireproof plates; and a fire-resistant structure sleeved on the outside of the fireproof shell, the fire-resistant structure comprising: a pair of snap-fit ​​members and a plurality of fire-resistant sleeves, the pair of snap-fit ​​members being disposed opposite to each other on the outside of the fireproof shell and connected to form a fixed sleeve, the plurality of fire-resistant sleeves being disposed on each surface of the fixed sleeve.

[0005] According to the present invention, a busbar trunking is provided with a pair of first protrusions on the side surface of the first plate away from the conductive busbar; a pair of second protrusions are provided on both sides of the second plate, and the second protrusions are engaged with the two first protrusions of the pair of first plates.

[0006] According to the present invention, a busbar trunking is provided, wherein the fire-retardant package has a cavity, and the cavity is filled with flame-retardant material.

[0007] According to the present invention, a busbar trunking is provided, wherein the fire-resistant package has a through hole, and the snap-fit ​​component has a hanging shaft on the surface opposite to the fireproof shell, and the hanging shaft passes through the through hole.

[0008] According to the present invention, a busbar trunking is provided, wherein the snap-fit ​​member includes a third plate and a pair of fourth plates, the pair of fourth plates are arranged parallel to each other on both sides of the third plate, and the surfaces of the pair of fourth plates facing away from each other are provided with third protrusions, and the two adjacent third protrusions of the pair of snap-fit ​​members are connected.

[0009] According to the present invention, a busbar trunking also includes multiple pairs of first insulators, which are arranged sequentially along the length of the fireproof outer shell. Each pair of first insulators is arranged opposite to each other to fix the opposite sides of the conductive busbar.

[0010] According to the present invention, a busbar trunking is provided with a plurality of first grooves on the side of the first insulator facing the conductive busbar, and the conductive busbar is embedded in the first grooves.

[0011] According to the present invention, a busbar trunking is provided in which a pair of fourth protrusions are provided on the surface of the first plate facing the conductive busbar; a second groove is provided on the surface of the first insulator facing the first plate, and the fourth protrusions are inserted into the second groove, and the pair of fourth protrusions and the pair of first insulators are connected.

[0012] According to the present invention, a busbar trunking system further includes: a temperature sensor disposed inside the fireproof housing, the temperature sensor being used to monitor the temperature inside the fireproof housing in real time; a comparator electrically connected to the temperature sensor; and a buzzer electrically connected to the comparator.

[0013] According to the present invention, a busbar trunking further includes: a second insulator disposed on the conductive busbar; a circuit board disposed on the second insulator and electrically connected to the conductive busbar, the circuit board also being electrically connected to the temperature sensor, the comparator and the buzzer.

[0014] The busbar trunking provided by this utility model, by setting a fireproof shell and a fire-resistant structure, can prevent fire from entering the fireproof shell, effectively improving the fire safety performance of the busbar trunking. In the event of a fire, the fire-resistant structure can effectively isolate the fire source, prevent the fire from spreading to the entire busbar trunking, protect power transmission from being affected, and ensure the continuous operation of important equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the busbar trunking provided by this utility model.

[0017] Figure 2 yes Figure 1 The exploded view of the fireproof casing is shown in the image.

[0018] Figure 3 yes Figure 1 The exploded diagram of the flame-retardant structure is shown in the image.

[0019] Figure 4 This is a schematic diagram of the structure of the first insulator.

[0020] Figure 5 This is a schematic diagram of the monitoring structure.

[0021] Figure label: 10. Fireproof housing; 11. First plate; 12. Second plate; 20. Fire-retardant structure; 21. Snap-fit ​​component; 22. Fire-retardant bag; 30. First insulator; 41. Second insulator; 42. Circuit board; 43. Temperature sensor; 44. Comparator; 45. Buzzer; 100. Conductor; 111. First protrusion; 112. Fourth protrusion; 121. Second protrusion; 211. Third plate; 212. Fourth plate; 213. Third protrusion; 241. Hanging shaft; 301. First groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The following is combined with Figures 1-5 This invention describes the busbar trunking.

[0024] like Figure 1As shown, in an embodiment of this utility model, the busbar trunking includes a fireproof shell 10 and a fire-resistant structure 20. The fireproof shell 10 is used to accommodate the conductive busbar and includes a pair of first plates 11 and a pair of second plates 12. The pair of first plates 11 are arranged in parallel, and the pair of second plates 12 are arranged in parallel and perpendicular to the first plates 11. Each end of the second plate 12 is detachably connected to one of the first plates 11, thereby allowing the pair of first plates 11 and the pair of second plates 12 to snap together to form the fireproof shell 10. In this embodiment, both the first plates 11 and the second plates 12 are fireproof to improve the overall fire resistance.

[0025] A fire-arresting structure 20 is fitted outside the fireproof housing 10 to effectively prevent the spread of fire and protect the interior of the busbar trunking from damage in the event of a fire. In this embodiment, the fire-arresting structure 20 includes a pair of snap-fit ​​connectors 21 and multiple fire-arresting pads 22. The pair of snap-fit ​​connectors 21 are positioned opposite each other on the outside of the fireproof housing 10 and connected to secure the fireproof housing 10. The pair of snap-fit ​​connectors 21, when connected, form a fixing sleeve. In this embodiment, the fixing sleeve is a rectangular fixing sleeve, and each surface of the rectangular fixing sleeve is provided with a fire-arresting pad 22 to effectively isolate flames and high temperatures, protecting the wires and cables inside the busbar trunking from damage.

[0026] Optionally, in embodiments of this utility model, there are various ways to detachably connect the first plate 11 and the second plate 12. For example, the surface of the first plate 11 facing the second plate 12 is provided with a slot, and the second plate 12 is provided with a protruding edge perpendicular to the second plate 12. The protruding edge is inserted into the slot so that the first plate 11 and the second plate 12 can be inserted into each other. Another example is that the surface of the first plate 11 facing away from the conductive bar is provided with a protruding edge, and the two sides of the second plate 12 are provided with L-shaped buckles. The protruding edge is engaged with the L-shaped buckles to achieve a detachable connection between the first plate 11 and the second plate 12.

[0027] The busbar trunking provided in this embodiment of the utility model, by setting a fireproof shell and a fire-resistant structure, can prevent fire from entering the fireproof shell, effectively improving the fire safety performance of the busbar trunking. In the event of a fire, the fire-resistant structure can effectively isolate the fire source, prevent the fire from spreading to the entire busbar trunking, protect power transmission from being affected, and ensure the continuous operation of important equipment.

[0028] like Figure 2As shown, in an embodiment of this utility model, the first plate 11 has a pair of first protruding edges 111 on the surface opposite to the conductive bar, and the second plate 12 has a pair of second protruding edges 121 on both sides. In this embodiment, the first protruding edges 111 are strip-shaped, and the second protruding edges 121 are L-shaped. The first protruding edges 111 and the second protruding edges 121 are engaged to connect the first plate 11 and the second plate 12. By engaging the first plate 11 and the second plate 12, the installation process of the second plate 12 is simplified, and the connection strength between the second plate 12 and the first plate 11 is improved, effectively preventing the second plate 12 from loosening or falling off due to vibration or external force.

[0029] Furthermore, a sealing strip can be provided between the first protruding edge 111 and the second protruding edge 121 to seal the connection between the first plate 11 and the second plate 12. This arrangement not only improves the fire resistance rating of the fireproof housing 10, but also prevents external factors such as dust and moisture from corroding the internal conductive busbars of the fireproof housing 10, extending the service life of the busbar trunking and enabling it to maintain excellent electrical performance and safety in various harsh environments.

[0030] like Figure 3 As shown, in an embodiment of this utility model, the snap-fit ​​member 21 includes a third plate 211 and a pair of fourth plates 212. The pair of fourth plates 212 are arranged parallel to each other on both sides of the third plate 211, and the surfaces of the pair of fourth plates 212 facing away from each other are provided with third protrusions 213. The two adjacent third protrusions 213 of the pair of snap-fit ​​members 21 are connected.

[0031] Specifically, a pair of fourth plates 212 and third plates 211 are connected to form a U-shaped structure. When a pair of snap-fit ​​pieces 21 are mated, the fireproof shell 10 is located in the cavity of the U-shaped structure. The two third protrusions 213 on one side of the fireproof shell 10 are connected by bolts, thereby fastening the fireproof shell 10 through a pair of snap-fit ​​pieces 21. At the same time, the semi-sleeve design of the snap-fit ​​pieces 21 not only facilitates installation and disassembly, but also effectively prevents the fire-resistant structure 20 from sliding on the fireproof shell 10, ensuring its stability outside the fireproof shell 10.

[0032] like Figure 3 As shown, in this embodiment of the invention, the fire-retardant bag 22 has a cavity filled with flame-retardant material. The flame-retardant material has excellent fire-resistant properties, effectively isolating flames and high temperatures, protecting the wires and cables in the busbar trunking from damage. The fire-retardant bag 22 encapsulates and protects the flame-retardant material, preventing it from being damaged by the external environment during use. Furthermore, after filling the cavity with the flame-retardant material, the opening of the cavity can be sealed to prevent the flame-retardant material from scattering out of the cavity, ensuring that the flame-retardant material can continue to function effectively.

[0033] Optionally, the flame-retardant material can be an inorganic fiber material, which can expand at high temperatures and form a dense carbonized layer, effectively isolating oxygen and thus preventing the spread of fire; the inorganic fiber material has good high-temperature resistance, can maintain structural stability in extreme high-temperature environments, does not burn, does not produce toxic gases, and is environmentally friendly.

[0034] Furthermore, the fire-resistant bag 22 is provided with a through hole, and the surface of the snap-fit ​​member 21 facing away from the fireproof shell 10 is provided with a hanging shaft 241. The hanging shaft 241 passes through the through hole so that the fire-resistant bag 22 can be hooked onto the snap-fit ​​member 21. This design makes the installation and removal of the fire-resistant bag 22 extremely convenient. During installation, the operator only needs to align the through hole with the hanging shaft 241 and make the hanging shaft 241 pass through the through hole to securely install the fire-resistant bag 22 on the snap-fit ​​member 21. At the same time, when it is necessary to remove or replace the fire-resistant bag 22, it is only necessary to remove the fire-resistant bag 22 from the hanging shaft 241. The operation process is simple and quick, greatly improving the efficiency of installation and removal.

[0035] like Figure 1 As shown, in this embodiment, the busbar is composed of multiple conductors 100, each of which is made of high-quality copper or aluminum, has good conductivity and corrosion resistance, can withstand high load current transmission, and can reduce energy loss.

[0036] like Figure 4 As shown, in this embodiment of the invention, the busbar trunking further includes multiple pairs of first insulators 30. These pairs of first insulators 30 are sequentially arranged along the length of the fireproof outer shell 10, with each pair of first insulators 30 positioned opposite each other to fix the opposite sides of the conductor 100. In this embodiment, the first insulators 30 are made of a material with good insulating properties, effectively isolating the electrical contact between the conductor 100 and the second plate 12, ensuring the safe operation of the busbar trunking.

[0037] Furthermore, the first insulator 30 has multiple first grooves 301 on the side facing the busbar, and each conductor 100 is embedded in one of the first grooves 301 to prevent the conductor 100 from shifting or loosening within the busbar trunking. This design ensures that the conductors 100 are neatly arranged and evenly spaced within the busbar trunking, thereby optimizing current distribution, reducing energy loss, and improving the overall performance of the busbar trunking.

[0038] like Figure 4As shown, in an embodiment of this utility model, a pair of fourth protrusions 112 are provided on the surface of the first plate 11 facing the conductor 100, and a second groove is provided on the surface of the first insulator 30 facing the first plate 11. The fourth protrusions 112 are inserted into the second groove. Bolts connect a pair of first insulators 30 and a pair of fourth protrusions 112, thereby fixing multiple conductors 100 between a pair of first insulators 30 and connecting the first insulators 30 to the first plate 11, thereby enhancing the overall stability of the busbar trunking.

[0039] like Figure 5 As shown in the embodiment of this utility model, the busbar trunking also includes a monitoring structure, which includes a temperature sensor 43, a comparator 44, and a buzzer 45. The temperature sensor 43 is disposed inside the fireproof housing 10. The temperature sensor is used to monitor the temperature inside the fireproof housing 10 in real time and transmit the temperature data to the comparator 44. The comparator 44 has one or more preset temperature thresholds. When the temperature data exceeds the preset threshold, the comparator 44 will immediately trigger the buzzer 45. After receiving the trigger signal, the buzzer 45 will emit a loud sound to warn the operator that the internal temperature of the busbar trunking is too high and there may be a fire hazard. This design enables the busbar trunking to issue an alarm in the early stage of a fire, buying valuable firefighting time for the operator and effectively reducing fire losses.

[0040] Furthermore, in this embodiment, comparator 44 is a voltage comparator, which works by comparing an analog voltage signal with a reference voltage. When the input voltage is higher than the reference voltage, it outputs a high level; conversely, when the input voltage is lower than the reference voltage, it outputs a low level. In this invention, comparator 44 receives temperature data from temperature sensor 43 and compares it with a preset temperature threshold. Once the temperature data exceeds the preset threshold, comparator 44 immediately changes its output state, thereby triggering buzzer 45 to issue an alarm.

[0041] Furthermore, the monitoring structure also includes a second insulator 41 and a circuit board 42. Multiple third grooves are provided on one side of the second insulator 41, and the conductor 100 is embedded in the third grooves. The circuit board 42 is disposed on the second insulator 41 and electrically connected to the conductor 100. A temperature sensor, a comparator 44, and a buzzer 45 are disposed on the circuit board 42. As a core component, the circuit board 42 integrates key components such as the temperature sensor 43, the buzzer 45, and the comparator 44, forming a compact and efficient system. By setting the second insulator 41, the circuit board 42 can be stably disposed on the conductor 100, ensuring the reliability and stability of the electrical connection. This design not only simplifies the installation process but also effectively improves the overall performance and response speed of the monitoring structure; when an abnormal temperature occurs inside the busbar trunking, the monitoring structure can respond quickly and issue an alarm, providing operators with timely and accurate fire warning information.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A busbar trunking system, characterized in that, include: A fireproof enclosure for housing a conductive bar, the fireproof enclosure comprising: a pair of parallel first plates and a pair of parallel second plates, the second plates being perpendicular to the first plates, each of the two ends of the second plate being detachably connected to one of the first plates, and both the first plates and the second plates being fireproof plates; A fire-resistant structure is fitted onto the outside of the fireproof shell. The fire-resistant structure includes a pair of snap-fit ​​members and a plurality of fire-resistant sleeves. The pair of snap-fit ​​members are disposed opposite to each other on the outside of the fireproof shell and connected to form a fixed sleeve. The plurality of fire-resistant sleeves are disposed on each surface of the fixed sleeve.

2. The busbar trunking according to claim 1, characterized in that, The first plate has a pair of first protrusions on the side surface opposite to the conductive busbar; The second plate has a pair of second protrusions on both sides, and the second protrusions engage with the two first protrusions of a pair of first plates.

3. The busbar trunking according to claim 1, characterized in that, The flame-retardant package has a cavity, which is filled with flame-retardant material.

4. The busbar trunking according to claim 3, characterized in that, The fire-resistant bag has a through hole, and the snap-fit ​​component has a hanging shaft on the surface opposite to the fireproof shell, with the hanging shaft passing through the through hole.

5. The busbar trunking according to claim 1, characterized in that, The snap-fit ​​component includes a third plate and a pair of fourth plates. The pair of fourth plates are arranged parallel to each other on both sides of the third plate. The surfaces of the pair of fourth plates that are opposite to each other are provided with third protrusions. The two adjacent third protrusions of the pair of snap-fit ​​components are connected.

6. The busbar trunking according to claim 1, characterized in that, It also includes multiple pairs of first insulators, which are arranged sequentially along the length of the fireproof shell. Each pair of first insulators is arranged opposite to each other to fix the opposite sides of the conductive busbar.

7. The busbar trunking according to claim 6, characterized in that, The first insulator has a plurality of first grooves on the side facing the conductive busbar, and the conductive busbar is embedded in the first grooves.

8. The busbar trunking according to claim 6, characterized in that, The surface of the first plate facing the conductive busbar is provided with a pair of fourth protrusions; The first insulator has a second groove on its surface facing the first plate, and the fourth protrusion is inserted into the second groove. A pair of the fourth protrusions and a pair of the first insulators are connected.

9. The busbar trunking according to claim 1, characterized in that, Also includes: A temperature sensor is installed inside the fireproof enclosure, and the temperature sensor is used to monitor the temperature inside the fireproof enclosure in real time. The comparator is electrically connected to the temperature sensor; A buzzer is electrically connected to the comparator.

10. The busbar trunking according to claim 9, characterized in that, Also includes: A second insulator is disposed on the conductive busbar; A circuit board is disposed on the second insulator and electrically connected to the conductive busbar. The circuit board is also electrically connected to the temperature sensor, the comparator, and the buzzer.

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