Novel fireproof bus duct capable of preventing electromagnetic interference

Abstract

The utility model belongs to the technical field of bus ducts, and particularly relates to a novel anti-electromagnetic interference fire-resistant bus duct, which comprises a shell, a cover plate and a fixing plate, first sliding grooves are arranged above two sides of the shell, the cover plate is connected in the first sliding grooves in a sliding manner, two groups of copper bars which are symmetrically distributed are arranged on the outer surface of the shell, and the fixing plate is arranged in the shell. Connecting plates are fixedly connected to the two sides of the lower surface of the fixing plate, and the lower surfaces of the connecting plates are fixedly connected to the two sides of the upper surface of a cover plate correspondingly. A protection mechanism is arranged in the shell; the protection mechanism comprises a fireproof unit and a heat dissipation unit; and the heat dissipation unit comprises heat dissipation fins, heat dissipation holes, a second sliding groove, a ventilation plate, a ventilation pipeline, a third sliding groove, an air cylinder, a placement groove, a first sliding block, a second sliding block and a fan. According to the novel fireproof bus duct capable of preventing electromagnetic interference, through the arrangement of the heat dissipation unit, internal heat can be effectively discharged out of the bus duct, and the performance of the bus duct is prevented from being affected by overheating.

Description

Technical Field

[0001] The utility model relates to the technical field of bus ducts, in particular to a novel fire-resistant bus duct for preventing electromagnetic interference. Background Art

[0002] Bus duct is a closed metal device composed of copper and aluminum busbars. It is used to distribute high power to various components of the distributed system. It has increasingly replaced wires and cables in indoor low-voltage power transmission trunk line projects.

[0003] A Chinese patent with publication number CN216290089U discloses a fire-resistant bus duct for preventing electromagnetic interference, comprising a protective device, a bus duct body and a heat dissipation device, wherein the bus duct body is arranged inside the protective device, and a heat dissipation device is arranged at the bottom of the protective device, and the heat dissipation device comprises a containing cover, a driving motor is fixedly mounted on the inner bottom wall of the containing cover, a rotating rod is fixedly mounted on the output end of the driving motor, a first fan blade is fixedly mounted on the top of the rotating rod, and a first gear is fixedly mounted on the outer side of the rotating rod.

[0004] The above-mentioned prior art solution has the following defects: the heat dissipation device only drives a single rotating rod and a first fan blade to work through a driving motor. Although wind flow can be generated to dissipate heat for the bus duct body, a single heat dissipation source may not be able to ensure that all parts of the bus duct body can be evenly and effectively cooled. In particular, when the bus duct is large in volume or complex in structure, the heat dissipation effect may be affected.

[0005] Therefore, we proposed a new type of electromagnetic interference-proof fire-resistant bus duct to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a novel fire-resistant bus duct for preventing electromagnetic interference, so as to solve the problem of poor heat dissipation effect proposed in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel electromagnetic interference-proof fire-resistant bus duct, comprising a shell, a cover plate and a fixing plate, wherein first slide grooves are provided above both sides of the shell, the cover plate is slidably connected inside the first slide grooves, two groups of symmetrically distributed copper bars are provided on the outer surface of the shell, connecting plates are fixedly connected on both sides of the lower surface of the fixing plate, and the lower surface of the connecting plate is fixedly connected to both sides of the upper surface of the cover plate respectively;

[0008] A protection mechanism is arranged inside the shell;

[0009] The protection mechanism includes a fire protection unit and a heat dissipation unit;

[0010] The heat dissipation unit includes a heat sink, a heat dissipation hole, a second slide groove, a ventilation plate, a ventilation duct, a third slide groove, a cylinder, a placement groove, a first slider, a second slider and a fan, the heat sink is fixedly connected to the left and right sides of the outer surface of the shell, the heat dissipation hole is arranged on the outer surface of the shell, the second slide groove is respectively arranged above the side of the connecting plate close to each other, the two ends of the ventilation plate are slidably connected to the inside of the second slide groove, the ventilation duct is arranged on the lower surface of the ventilation plate, the placement groove is arranged in the middle of the fixed plate, the third slide groove is arranged on the left and right sides of the placement groove, the first slider and the second slider are respectively slidably connected to the inside of the third slide groove, the two sides of the fan are fixedly connected to the side of the first slider and the second slider close to each other, the air outlet of the fan is fixedly connected to the upper surface of the ventilation plate and extends to the inside thereof, and the output end of the cylinder is fixedly connected to the back of the first slider;

[0011] The fireproof unit includes a card block, a sealing plate and a flame retardant partition, wherein the card block is respectively arranged on the bottom surface of the shell and the lower surface of the cover plate, the sealing plate is respectively arranged on the front and back of the shell, and the flame retardant partition is respectively arranged at both ends of the shell.

[0012] Preferably, the outer wall of the shell is provided with an electromagnetic shielding layer, and the material of the electromagnetic shielding layer is iron-nickel alloy. Iron-nickel alloy is an excellent electromagnetic shielding material. By providing the electromagnetic shielding layer of iron-nickel alloy, the bus duct can more effectively prevent interference from external electromagnetic waves and protect the normal operation of internal electrical components.

[0013] Preferably, the inner walls of the shell are made of high-temperature resistant alloy on both sides facing outwards. Using high-temperature resistant alloy as the inner walls of the shell can improve the heat resistance of the bus duct, prevent deformation or damage caused by high temperature, and ensure the safe and stable operation of the bus duct.

[0014] Preferably, the sealing plate is coated with a fire retardant coating. The coating of the fire retardant coating can increase the fire resistance of the sealing plate. When the bus duct encounters a fire, the fire retardant coating can form a protective layer to slow down the spread of the fire and provide additional protection for the fire resistance of the bus duct.

[0015] Preferably, a filter screen is provided on the inner side of the outer wall of the shell. The filter screen can prevent dust, impurities and the like from entering the bus duct, thereby keeping the inside of the bus duct clean.

[0016] Preferably, there are a plurality of ventilation ducts which are equidistantly arranged on the lower surface of the ventilation plate. The plurality of ventilation ducts equidistantly arranged can increase the ventilation area and improve the heat dissipation efficiency.

[0017] Preferably, there are multiple heat dissipation holes, which are equidistantly opened on both sides of the outer surface of the shell. The design of multiple heat dissipation holes can increase the heat exchange area between the bus duct and the external environment and improve the heat dissipation effect. This helps the bus duct maintain good working performance in a high temperature environment and ensures its stable operation.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. This new type of electromagnetic interference-proof fire-resistant bus duct can effectively discharge internal heat through the setting of heat dissipation units to prevent its performance from being affected by overheating. In particular, multiple ventilation ducts and heat dissipation holes opened at equal distances further increase the heat dissipation area and improve the heat dissipation efficiency.

[0020] 2. This new type of fire-resistant bus duct with electromagnetic interference protection can effectively prevent interference from external electromagnetic waves and protect the normal operation of internal electrical components by setting an electromagnetic shielding layer on the outer wall of the shell and using iron-nickel alloy, an excellent electromagnetic shielding material.

[0021] 3. This new type of fire-resistant bus duct with electromagnetic interference protection has high-temperature resistant alloy material on both sides of the inner wall of the shell facing outward. This material can significantly improve the heat resistance of the bus duct, and can prevent deformation or damage caused by overheating even in high temperature environments, ensuring the safe and stable operation of the bus duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall side structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall front structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the overall front structure of the utility model;

[0025] Figure 4 It is a top view of the internal structure of the shell of the utility model;

[0026] Figure 5 This is a cross-sectional view of the interior of the shell of the present invention.

[0027] In the figure: 1 shell, 101 heat dissipation hole, 102 first slide groove, 2 cover plate, 3 heat sink, 4 copper bar, 401 sealing plate, 5 connecting plate, 501 second slide groove, 502 ventilation plate, 503 ventilation duct, 6 fixing plate, 601 third slide groove, 602 cylinder, 603 placement groove, 604 first slider, 605 second slider, 7 fan, 8 flame retardant partition, 9 block, 10 filter screen. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 5 The utility model provides a technical solution: a new type of fire-resistant bus duct with electromagnetic interference protection, including a shell 1, a cover plate 2 and a fixing plate 6. The outer wall of the shell 1 is provided with an electromagnetic shielding layer, and the electromagnetic shielding layer is made of iron-nickel alloy. The iron-nickel alloy is used as the material of the electromagnetic shielding layer to effectively prevent the interference of external electromagnetic waves, protect the electrical components inside the bus duct from the influence of electromagnetic noise, and improve the electromagnetic compatibility of the bus duct. The inner wall of the shell 1 facing outwards is made of high-temperature resistant alloy, so that the bus duct can still maintain structural stability in a high temperature environment, prevent deformation or damage, and ensure the long-term use safety of the bus duct. A filter screen plate 10 is provided on the inner side of the outer wall of the shell 1, which effectively blocks dust and impurities from entering the bus duct, keeps the bus duct clean, reduces the number of maintenance times, and prolongs the service life. A first slide groove 102 is opened above both sides of the shell 1, and the cover plate 2 is slidably connected to the inside of the first slide groove 102, which is convenient for the opening and closing operation of the cover plate 2, making the assembly and maintenance of the bus duct more convenient. Two groups of symmetrically distributed copper bars 4 are arranged on the outer surface of the housing 1, and connecting plates 5 are fixedly connected to both sides of the lower surface of the fixing plate 6, and the lower surfaces of the connecting plates 5 are fixedly connected to both sides of the upper surface of the cover plate 2 respectively;

[0030] A protection mechanism is provided inside the housing 1;

[0031] The protection mechanism includes a fire protection unit and a heat dissipation unit;

[0032] The heat dissipation unit includes a heat sink 3, a heat dissipation hole 101, a second slide 501, a ventilation plate 502, a ventilation duct 503, a third slide 601, a cylinder 602, a placement slot 603, a first slider 604, a second slider 605 and a fan 7. The heat sink 3 is fixedly connected to the left and right sides of the outer surface of the housing 1 to increase the heat dissipation area of ​​the bus duct and improve the heat dissipation efficiency. The heat dissipation hole 101 is opened on the outer surface of the housing 1. There are multiple heat dissipation holes 101, which are equidistantly opened on both sides of the outer surface of the housing 1, which increases the heat exchange area between the bus duct and the external environment and further improves the heat dissipation effect. The second slide 501 is respectively opened above the side of the connecting plate 5 that is close to each other. The second slide 501 allows the ventilation plate 502 to slide when needed, adjust the position of the vent, and optimize the heat dissipation effect. The two ends of the ventilation plate 502 are slidably connected to the inside of the second slide 501. The ventilation duct 503 is opened on the lower surface of the ventilation plate 502. There are multiple ventilation ducts 503, which are equidistantly opened on the lower surface of the ventilation plate 502. The placement slot 603 is opened in the middle of the fixed plate 6, the third slide slot 601 is opened on the left and right sides of the placement slot 603, the first slider 604 and the second slider 605 are respectively slidably connected to the inside of the third slide slot 601, the two sides of the fan 7 are fixedly connected to the side where the first slider 604 and the second slider 605 are close to each other, and the air outlet of the fan 7 is fixedly connected to the upper surface of the ventilation plate 502 and extends to the inside thereof, forming an effective heat dissipation channel to quickly discharge the heat inside the bus duct. The output end of the cylinder 602 is fixedly connected to the back of the first slider 604. By driving the cylinder 602, the position of the fan 7 can be adjusted to meet the heat dissipation requirements under different working conditions.

[0033] The fireproof unit includes a card block 9, a sealing plate 401 and a flame retardant partition 8. The card block 9 is respectively arranged on the inner bottom surface of the shell 1 and the lower surface of the cover plate 2. The sealing plate 401 is respectively arranged on the front and back of the shell 1. The sealing plate 401 is coated with a fire retardant coating to increase the fireproof performance of the sealing plate, slow down the spread of the fire, and provide additional protection for the fire resistance of the bus duct. The flame retardant partition 8 is respectively arranged at both ends of the shell 1, dividing the inside of the bus duct into multiple areas, which can effectively prevent the spread of fire between different areas in the event of a fire.

[0034] Working principle: First, according to the needs and safety requirements of the system, determine the layout path, length and number of cables accommodated in the bus duct. Since the material of the shell 1 is iron-nickel alloy, the electromagnetic shielding layer of the iron-nickel alloy can absorb and reflect external electromagnetic waves, reduce its interference with the electrical components inside the bus duct, and thus ensure the normal operation of the electrical components inside the bus duct. The bus duct will generate a certain amount of heat during operation. The heat sink 3, as the main heat dissipation element, is fixedly connected to the outer surface of the shell 1, increasing the contact area between the bus duct and the surrounding environment, thereby improving the heat dissipation efficiency. The heat is quickly dissipated into the air through the heat sink 3. At the same time, the design of the heat dissipation hole 101 enables the heat inside the bus duct to be exchanged with the outside world by convection. There are multiple heat dissipation holes 101, which increases the heat exchange area between the bus duct and the external environment, and further improves the heat dissipation effect. The fan 7 is an active heat dissipation element, and its air outlet is fixedly connected to the upper surface of the ventilation plate 502 to form an effective heat dissipation channel. When the fan 7 is running, the heat on the surface of the housing 1 can be taken away through the ventilation plate 502 and the ventilation duct 503. The ventilation plate 502 and the ventilation duct 503 play a guiding role, so that the cold air can flow along a predetermined path. At the same time, the cylinder 602 drives the first slider 604 and the second slider 605 to slide inside the third slide groove 601, so that the position of the fan 7 can be adjusted, thereby optimizing the heat dissipation effect of different areas.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A novel fire-resistant bus duct for preventing electromagnetic interference, comprising a housing (1), a cover plate (2) and a fixing plate (6), characterized in that: A first slide groove (102) is provided above both sides of the shell (1), the cover plate (2) is slidably connected to the inside of the first slide groove (102), two groups of symmetrically distributed copper bars (4) are provided on the outer surface of the shell (1), connecting plates (5) are fixedly connected to both sides of the lower surface of the fixing plate (6), and the lower surface of the connecting plate (5) is respectively fixedly connected to both sides of the upper surface of the cover plate (2); A protective mechanism is arranged inside the housing (1); The protection mechanism includes a fire protection unit and a heat dissipation unit; The heat dissipation unit comprises a heat sink (3), a heat dissipation hole (101), a second slide groove (501), a ventilation plate (502), a ventilation duct (503), a third slide groove (601), a cylinder (602), a placement groove (603), a first slider (604), a second slider (605) and a fan (7); the heat sink (3) is fixedly connected to the left and right sides of the outer surface of the shell (1); the heat dissipation hole (101) is provided on the outer surface of the shell (1); the second slide grooves (501) are respectively provided above the mutually adjacent sides of the connecting plate (5); the two ends of the ventilation plate (502) are slidably connected to the inside of the second slide groove (501); the ventilation duct (503) is provided to the second slide groove (501); and the ventilation duct (503) is provided to the second slide groove (501). The air duct (503) is provided on the lower surface of the ventilation plate (502), the placement groove (603) is provided in the middle of the fixed plate (6), the third slide groove (601) is provided on the left and right sides of the placement groove (603), the first slider (604) and the second slider (605) are respectively slidably connected to the inside of the third slide groove (601), the two sides of the fan (7) are fixedly connected to the side where the first slider (604) and the second slider (605) are close to each other, the air outlet of the fan (7) is fixedly connected to the upper surface of the ventilation plate (502) and extends into the inside thereof, and the output end of the cylinder (602) is fixedly connected to the back of the first slider (604); The fireproof unit comprises a card block (9), a sealing plate (401) and a flame retardant partition (8); the card block (9) is respectively arranged on the inner bottom surface of the shell (1) and the lower surface of the cover plate (2); the sealing plate (401) is respectively arranged on the front and back sides of the shell (1); and the flame retardant partition (8) is respectively arranged at both ends of the shell (1).

2. According to claim 1, a new type of fire-resistant bus duct for preventing electromagnetic interference is characterized in that: The outer wall of the shell (1) is provided with an electromagnetic shielding layer, and the material of the electromagnetic shielding layer is an iron-nickel alloy.

3. The novel electromagnetic interference resistant fire-resistant bus duct according to claim 1 is characterized in that: The inner wall of the shell (1) facing outwards is made of high-temperature resistant alloy material on both sides.

4. The novel electromagnetic interference resistant fire-resistant bus duct according to claim 1 is characterized in that: The sealing plate (401) is coated with fire retardant paint.

5. The novel electromagnetic interference-proof fire-resistant bus duct according to claim 1 is characterized in that: A filter screen plate (10) is arranged on the inner side of the outer wall of the housing (1).

6. The novel electromagnetic interference resistant fire-resistant bus duct according to claim 1 is characterized in that: There are a plurality of ventilation ducts (503) which are equidistantly arranged on the lower surface of the ventilation plate (502).

7. The novel electromagnetic interference resistant fire-resistant bus duct according to claim 1 is characterized in that: There are a plurality of heat dissipation holes (101), which are equidistantly arranged on both sides of the outer surface of the shell (1).

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