Arc-proof bus duct structure with high insulating property

Abstract

The invention discloses an arc-proof bus duct structure with high insulativity, and relates to the technical field of power transmission equipment.The arc-proof bus duct structure comprises an outer top plate, inner protection plates are arranged on the two sides of the outer top plate, an outer sealing plate is arranged on one side of each inner protection plate and located on one side of the outer top plate, and a side fixing plate is arranged on one side of each inner protection plate and located on the other side of the outer top plate; an upper limiting rod is arranged at the bottom of the outer top plate, supporting vertical rods are arranged at the two ends of the upper limiting rod in a penetrating mode, springs are arranged at the tops of the outer walls of the supporting vertical rods, the portions, located at the bottoms of the springs, of the tops of the outer walls of the supporting vertical rods are sleeved with plastic top plates, and plastic clamping plates are arranged at the portions, arranged on the outer walls of the supporting vertical rods in a sleeving mode, of the bottoms of the plastic top plates; and an outer bottom plate is arranged at the bottom of the supporting vertical rod. By improving the structural design of the bus duct, the arc prevention performance, the insulation performance, the structural stability and the environmental adaptability of the bus duct are improved, the occurrence probability of electrical safety accidents can be effectively reduced, the service life of the bus duct is prolonged, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of power transmission equipment, in particular to a bus duct structure with high arc-proof insulation. BACKGROUND

[0002] In modern buildings and industrial facilities, the demand for electricity is increasing, and higher requirements are put forward for the reliability and safety of power transmission. As a kind of efficient power transmission equipment, the bus duct has obvious advantages such as large carrying capacity, small voltage loss, good heat dissipation, convenient installation, etc. compared with the traditional cable transmission method. It can concentrate and distribute electric energy, efficiently transmit electric energy from the power supply end to various electrical equipment, and is widely used in high-rise buildings, data centers, factory workshops and other places, becoming an indispensable important part of modern power system.

[0003] During power transmission, arc may be generated due to various reasons such as overload, short circuit, equipment aging, etc. Arc is a kind of high-temperature and high-energy discharge phenomenon, which can produce extremely high temperature (up to thousands of degrees Celsius) and release huge energy instantaneously. The existing bus duct structure has obvious defects in arc-proof. When arc occurs, the high temperature of arc can easily burn the insulation material of the bus duct, damage the structural integrity of the bus duct, and further cause serious safety accidents such as electrical fire, which poses a great threat to personnel life and property safety.

[0004] Insulation performance is one of the key indicators of bus duct, which is directly related to the safety and reliability of power transmission. However, some bus duct products on the market have deficiencies in insulation design. The design of insulation structure is not perfect enough, and the cooperation between the internal conductor and the insulation part of the bus duct is not tight enough, there is a gap, which is easy to make moisture, dust and other things enter, and reduce the insulation effect.

[0005] During installation and use, the bus duct needs to bear certain mechanical stress, such as its own gravity, external vibration, tension during installation, etc. The existing bus duct structure is not fully considered in the design of mechanical strength, resulting in poor structural stability. In the long-term use process, the bus duct is easy to deform, loosen and other problems, which affects the connection reliability between the conductors, increases the contact resistance, and generates too much heat, accelerates the aging of the insulation material, and further reduces the performance and life of the bus duct.

[0006] In view of the above problems existing in the existing bus duct, it is of great practical significance to develop a bus duct structure with high arc-proof insulation. SUMMARY

[0007] Therefore, the purpose of the present application is to provide a bus duct structure with high arc-proof insulation to solve the technical problems raised in the background.

[0008] To achieve the above object, the present application provides the following technical scheme:

[0009] A bus duct structure with high arc-proof insulation, comprising an outer top plate, inner guard plates arranged on both sides of the outer top plate, an outer sealing plate arranged on one side of the inner guard plate and on one side of the outer top plate, a side fixing plate arranged on one side of the inner guard plate and on the other side of the outer top plate, an upper limiting rod arranged at the bottom of the outer top plate, support vertical rods arranged at both ends of the upper limiting rod, a spring arranged at the top of the outer wall of the support vertical rod, a plastic top plate arranged at the top of the outer wall of the support vertical rod and at the bottom of the spring, a plastic clamping plate arranged at the bottom of the plastic top plate and on the outer wall of the support vertical rod, and an outer bottom plate arranged at the bottom of the support vertical rod.

[0010] Preferably, limiting sleeves are symmetrically arranged at the top of the outer bottom plate, the limiting sleeves are arranged at the bottom of the support vertical rod, and square clamping grooves are arranged at both ends of the outer bottom plate.

[0011] Preferably, a plurality of recesses are linearly and uniformly arranged at the top of the plastic clamping plate and on one side of the support vertical rod.

[0012] Preferably, a plurality of top blocks are linearly and uniformly arranged at the bottom of the plastic top plate and on one side of the support vertical rod, the plurality of top blocks and the plurality of recesses are arranged on the same vertical plane, and are arranged one-to-one.

[0013] Preferably, a lower limiting rod is further arranged at the bottom of the outer wall of the support vertical rod and at the top of the outer bottom plate, a thread is arranged at the top of the support vertical rod, and the top of the support vertical rod is connected to the top of the upper limiting rod through a nut and a spacer ring.

[0014] Preferably, the side fixing plate comprises a side plate close to one side of the outer top plate, square clamping blocks arranged at the top and the bottom of the side plate, a plurality of parallel connection ribs arranged on the other side of the side plate, a mounting plate arranged on the other side of the connection rib, a plurality of mounting holes arranged at the top and the bottom of the side wall of the mounting plate, and rubber pads arranged at the outer wall of the top and the bottom of the mounting plate and on both sides of the mounting holes.

[0015] Preferably, limiting square protrusions are arranged at the top and the bottom of the mounting plate, and the rubber pads are clamped and sleeved on the outer walls of the limiting square protrusions.

[0016] Preferably, square clamping blocks are arranged at the top and the bottom of one side of the outer sealing plate, and linear grooves are further arranged at the top and the bottom of the outer sealing plate.

[0017] Preferably, the outer wall of the square clamping block is in sliding connection with the inner wall of the square clamping groove, and the inner wall of the linear groove is in sliding connection with both ends of the outer top plate and both ends of the outer bottom plate.

[0018] Preferably, the inner guard plate top and bottom are provided with clamping stop bars, and one side of the inner guard plate is provided with a top and bottom reinforced rib.

[0019] In summary, the present application mainly has the following beneficial effects:

[0020] The present application can effectively block the spread of electric arc, absorb the energy generated by electric arc, and reduce the damage degree of electric arc to the internal conductor and insulation components of the bus duct through the support vertical rod, plastic top plate, plastic clamping plate and other structural designs; at the same time, the inner guard plate, outer sealing plate and other structures ensure the close cooperation between the internal conductor and insulation components of the bus duct, reduce the gap, prevent moisture, dust and other things from entering, improve the insulation resistance of the bus duct, reduce the risk of electric leakage, and ensure the safety and stability of power transmission;

[0021] Secondly, the structure of the rubber pad, connecting rib, reinforcing rib and other structures increases the structural strength and rigidity, improves the ability to withstand mechanical stress, and ensures that the bus duct will not deform, loosen and other problems during installation and use through reasonable support and fixing device, ensures the connection reliability between the conductors, reduces the contact resistance, reduces the heat generation, and prolongs the service life of the bus duct. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 3 It is a schematic diagram of the partial structure of the present application;

[0025] Figure 4 It is a schematic diagram of the side fixing plate structure of the present application;

[0026] Figure 5 It is a schematic diagram of the overall structure of the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS: 10, outer top plate; 11, inner guard plate; 12, outer sealing plate; 13, side fixing plate; 14, upper limiting rod; 15, support vertical rod; 16, spring; 17, plastic top plate; 18, plastic clamping plate; 19, outer bottom plate; 191, limiting sleeve; 192, square clamping groove; 181, groove; 171, top block; 143, lower limiting rod; 151, nut; 152, grommet; 131, side plate; 132, square clamping block; 133, connecting rib; 134, mounting plate; 135, mounting hole; 136, rubber pad; 1341, limiting square protrusion; 122, linear slot; 111, clamping stop bar; 112, reinforcing rib. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0029] Embodiment

[0030] As Figures 1 to 5 shown, a bus duct structure with high arc-proof insulation includes an outer top plate 10, both sides of the outer top plate 10 are provided with inner guard plates 11, one side of the inner guard plate 11 and located at one side of the outer top plate 10 is provided with an outer sealing plate 12, one side of the inner guard plate 11 and located at the other side of the outer top plate 10 is provided with a side fixing plate 13, the bottom of the outer top plate 10 is provided with an upper limiting rod 14, both ends of the upper limiting rod 14 are provided with support vertical rods 15, the outer wall top of the support vertical rod 15 is provided with springs 16, the outer wall top of the support vertical rod 15 and located at the bottom of the spring 16 is provided with a plastic top plate 17, the bottom of the plastic top plate 17 is provided with a plastic clamping plate 18 which is clamped on the outer wall of the support vertical rod 15, and the bottom of the support vertical rod 15 is provided with an outer bottom plate 19

[0031] It should be noted that in the present embodiment, the top of the outer bottom plate 19 is symmetrically provided with a limiting sleeve 191 which is clamped on the bottom of the support vertical rod 15, both ends of the outer bottom plate 19 are provided with square clamping grooves 192 which are used for clamping and connecting with the square clamping blocks 132 of the side fixing plate 13 and the square clamping blocks 132 provided on one side of the top and the bottom of the outer sealing plate 12 to form a complete bus box, thereby achieving the shielding and protection of the bus.

[0032] The top and the bottom of the inner guard plate 11 are provided with clamping stop strips 111, one side of the inner guard plate 11 is provided with a top and a bottom provided with reinforcing ribs 112, and the reinforcing ribs 112 are used for increasing the structural strength of the sheet-shaped inner guard plate 11 so that it is not easy to break when used in a long size.

[0033] Among them, the inner guard plate 11 is arranged on both sides of the outer bottom plate 19, and one is arranged on the side fixing plate 13 and the outer sealing plate 12, further adding a partition protection in the bus box, in terms of installation, the inner guard plate 11 is installed by sliding and clamping, and the installation method is simple and easy to operate.

[0034] The top of the plastic clamping plate 18 and located on one side of the support vertical rod 15 is linearly and evenly distributed with a plurality of grooves 181; the bottom of the plastic top plate 17 and located on one side of the support vertical rod 15 is linearly and evenly distributed with a plurality of top blocks 171, the plurality of top blocks 171 and the plurality of grooves 181 are located in the same vertical plane and are one-to-one correspondingly arranged, the groove 181 is used for placing a wire body, and the wire body is limited by being clamped into the inner wall of the groove 181 through the cooperation of the top block 171.

[0035] The bottom of the outer wall of the supporting vertical rod 15 and the top of the outer bottom plate 19 are further provided with a lower limiting rod 143, the top of the supporting vertical rod 15 is provided with a screw thread, and the top of the supporting vertical rod 15 is connected with the top of the upper limiting rod 14 through a nut 151 and a grommet 152; the lower limiting rod 143 has the same structure as the upper limiting rod 14.

[0036] It needs to be further explained that the installation and limiting mode of the plastic top plate 17 and the plastic clamping plate 18 needs to insert the supporting vertical rod 15 into the inner wall of the limiting sleeve 191, then sequentially install the lower limiting rod 143, the plastic clamping plate 18, and clamp the wire body to be laid in the inner wall of the plurality of grooves 181, install the plastic top plate 17, and then set the spring 16 on the top of the outer wall of the supporting vertical rod 15, finally install the upper limiting rod 14, and fix the supporting vertical rod 15 through the nut 151 and the grommet 152;

[0037] The compression deformation of the spring 16 is the main limiting force source, on the one hand, the bottom of the spring 16 acts on the plastic top plate 17, so as to realize the top pressure of the plastic top plate 17 on the wire body and the plastic clamping plate 18, on the other hand, the top of the spring 16 top-presses the upper limiting rod 14, cooperates with the nut 151 and the grommet 152 to realize the overall auxiliary fixing, constitutes the wire body limiting mechanism, and the overall wire body limiting mechanism is limited between the outer top plate 10 and the outer bottom plate 19, the lower limiting rod 143 and the upper limiting rod 14 are overall square rods, and the left and right front shaking of the wire body limiting mechanism in the bus duct is auxiliary realized.

[0038] The side fixing plate 13 includes a side plate 131 close to one side of the outer top plate 10, the side plate 131 is provided with square clamping blocks 132 at the top and the bottom, the other side of the side plate 131 is provided with a plurality of parallel connection ribs 133, and the other side of the connection rib 133 is provided with a mounting plate 134;

[0039] The side wall of the mounting plate 134 is provided with a plurality of mounting holes 135 at the top and the bottom, the outer wall of the top and the bottom of the mounting plate 134 and located on both sides of the mounting hole 135 is provided with a rubber pad 136; the top and the bottom of the mounting plate 134 are provided with limiting square protrusions 1341, the inner wall of the rubber pad 136 is clamped and sleeved on the outer wall of the limiting square protrusion 1341, and the square protrusion 1341 is matched with the inner wall of the rubber pad 136 to form a limiting structure, so that the rubber pad 136 will not fall off during installation due to its small structure, affecting the convenient installation of the bus duct, and in addition, the rubber pad 136 realizes the insulation between the entire wire box and the installed object.

[0040] The outer sealing plate 12 is provided with square clamping blocks 132 on the top and bottom of one side, and is further provided with linear grooves 122 on the top and bottom; the outer wall of the square clamping block 132 is in sliding connection with the inner wall of the square clamping groove 192, and the inner wall of the linear groove 122 is in sliding connection with the two ends of the outer top plate 10 and the two ends of the outer bottom plate 19; the sliding connection between the outer wall of the square clamping block 132 and the inner wall of the square clamping groove 192 increases the sealing property of the whole bus box, and the sliding connection between the inner wall of the linear groove 122 and the two ends of the outer top plate 10 and the two ends of the outer bottom plate 19 further increases the structural stability and structural strength of the whole bus box on the basis of ensuring the sealing property.

[0041] Use and installation: firstly, a plurality of mounting holes 135 are arranged on the top and bottom of the side wall of the mounting plate 134, and rubber pads 136 are arranged on the outer wall of the top and bottom of the mounting plate 134 and located on both sides of the mounting holes 135, and then the side fixed plate 13 is installed in the reserved position by cooperating with the screws;

[0042] Then, the supporting vertical rod 15 is inserted into the inner wall of the limiting sleeve 191, then the lower limiting rod 143, the plastic clamping plate 18 are sequentially installed, the wire to be laid is clamped in the inner wall of the plurality of grooves 181, the plastic top plate 17 is installed, and then the spring 16 is sleeved on the outer wall of the supporting vertical rod 15, finally the upper limiting rod 14 is installed, and the supporting vertical rod 15 is fixed by the nut 151 and the grommet 152; the whole is embedded in the bottom of the mounting plate 134, and then the outer top plate 10 and the outer sealing plate 12 are sequentially installed.

[0043] There is a gap between the square clamping groove 192 of the outer sealing plate 12 and the side fixed plate 13, and finally the inner guard plate 11 is embedded to complete the final installation.

[0044] The above examples only illustrate the technical idea of the present application, and cannot limit the protection scope of the present application, and any modification made on the basis of the technical solutions according to the technical idea of the present application falls within the protection scope of the present application.

Claims

1. A bus duct structure with high arc insulation, characterized in that: The invention comprises an outer top plate (10), inner guard plates (11) are provided on both sides of the outer top plate (10), an outer sealing plate (12) is provided on one side of the inner guard plate (11) and located on one side of the outer top plate (10), a side fixing plate (13) is provided on one side of the inner guard plate (11) and located on the other side of the outer top plate (10), an upper limit rod (14) is provided at the bottom of the outer top plate (10), support vertical rods (15) are passed through both ends of the upper limit rod (14), a spring (16) is provided at the top of the outer wall of the support vertical rod (15), a plastic top plate (17) is provided at the top of the outer wall of the support vertical rod (15) and located at the bottom of the spring (16), a plastic card plate (18) is provided at the bottom of the plastic top plate (17) and is cut and sleeved on the outer wall of the support vertical rod (15), and an outer bottom plate (19) is provided at the bottom of the support vertical rod (15).

2. A bus duct structure with high arc insulation according to claim 1, characterized in that: A limiting sleeve (191) is symmetrically provided on the top of the outer bottom plate (19), and the limiting sleeve (191) is sleeved on the bottom of the supporting vertical rod (15). Square card slots (192) are provided at both ends of the outer bottom plate (19).

3. The bus duct structure with high arc insulation performance according to claim 1, characterized in that: A plurality of grooves (181) are evenly distributed and embedded in a linear array on the top of the plastic card plate (18) and on one side of the support vertical rod (15).

4. The bus duct structure with high arc insulation performance according to claim 3, characterized in that: A plurality of top blocks (171) are evenly distributed in a linear array at the bottom of the plastic top plate (17) and located on one side of the support vertical rod (15). The plurality of top blocks (171) and the plurality of grooves (181) are located on the same vertical plane and are arranged in a one-to-one correspondence.

5. The bus duct structure with high arc insulation performance according to claim 1, characterized in that: A lower limiting rod (143) is provided at the bottom of the outer wall of the supporting vertical rod (15) and located at the top of the outer bottom plate (19); a thread is provided on the top of the supporting vertical rod (15); and the top of the supporting vertical rod (15) is connected to the top of the upper limiting rod (14) via a nut (151) and a washer (152).

6. The bus duct structure with high arc insulation performance according to claim 1, characterized in that: The side fixing plate (13) includes a side plate (131) close to one side of the outer top plate (10), a square block (132) is provided at the top and bottom of the side plate (131), a plurality of parallel connecting ribs (133) are provided at the other side of the side plate (131), a mounting plate (134) is provided at the other side of the connecting rib (133), a plurality of mounting holes (135) are provided at the top and bottom of the side wall of the mounting plate (134), and rubber pads (136) are provided on the outer walls of the top and bottom of the mounting plate (134) and on both sides of the mounting holes (135).

7. The bus duct structure with high arc insulation performance according to claim 6, characterized in that: The top and bottom of the mounting plate (134) are provided with position-limiting square protrusions (1341), and the inner wall of the rubber pad (136) is clip-fitted onto the outer wall of the position-limiting square protrusions (1341).

8. The bus duct structure with high arc insulation performance according to claim 2, characterized in that: Square clamping blocks (132) are provided at the top and bottom of one side of the outer sealing plate (12), and linear grooves (122) are also provided at the top and bottom of the outer sealing plate (12).

9. The bus duct structure with high arc insulation performance according to claim 8, characterized in that: The outer wall of the square clamping block (132) is slidably connected to the inner wall of the square clamping slot (192), and the inner wall of the linear slot (122) is slidably connected to both ends of the outer top plate (10) and both ends of the outer bottom plate (19).

10. The bus duct structure with high arc insulation performance according to claim 1, characterized in that: The inner guard plate (11) is provided with a blocking strip (111) at the top and bottom, and one side of the inner guard plate (11) is provided with a reinforcing rib (112) at the top and bottom.

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