Cover plate for centrally-mounted PE wire bus duct and bus duct

Abstract

The utility model discloses a cover plate for a centrally-arranged PE line bus duct, which relates to the field of bus ducts, and comprises a cover plate main body, a positioning groove is arranged at the center line position of the cover plate main body along the length direction of the cover plate main body in a penetrating manner, and the positioning groove is used for inserting a centrally-arranged PE line. And the PE wire in the middle is inserted into the positioning groove, so that the cover plate is positioned relative to the center of the busbar, and the quick positioning and installation of the bus duct cover plate are realized. The utility model further discloses a bus duct which comprises the cover plate for the centrally-arranged PE wire bus duct, the temperature of a phase line located in the middle of a busbar in the prior art is reduced by adopting a mode that the PE wire is centrally arranged, so that the temperature rise index during operation of the bus duct is reduced, and the stability and the safety of the bus duct are improved. And meanwhile, a double-region arrangement mode is adopted, so that the distances between the phases and the PE wires are consistent, and the PE wires can be connected with a grounding system as soon as possible when a short-circuit accident occurs, so that the short-circuit strength is reduced, and the safety performance of the bus duct is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bus ducts, and more specifically, to a cover plate for a centrally mounted PE line bus duct. The utility model also relates to a bus duct comprising the cover plate for a centrally mounted PE line bus duct. Background Art

[0002] Busbars are devices responsible for transmitting and distributing electrical energy in low-voltage power supply systems. They offer numerous advantages, including high current-carrying capacity, high protection levels, convenient energy distribution, compact structure, ease of installation and maintenance, and long service life. With the development of the times, improvements in living standards, and advancements in industrial automation, electricity loads are increasing. Using busbars to replace cables has become a growing trend, particularly in hotels, factories, mines, high-rise buildings, and public facilities.

[0003] Currently, bus ducts typically use a NABC-PE or PE-ABCN configuration for conductor structure layout. During bus duct temperature-rise tests, it's clearly found that the temperature of the middle phase, phase B, is higher, about 5°C higher than the adjacent phases A and B. This causes the bus duct to fail the temperature-rise test, necessitating an increase in the bus duct conductor cross-section, which in turn increases product costs and reduces market competitiveness.

[0004] At the same time, during the installation of the bus duct cover, the installation position of the bus duct cover needs to be adjusted according to the thickness of the bus duct gauge, which leads to reduced installation efficiency of the bus duct cover and a high error rate.

[0005] In summary, how to achieve rapid positioning and installation of bus duct cover plates is a problem that currently needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a cover plate for a centrally placed PE line bus duct, which is convenient for quickly positioning the cover plate at the center of the busbar.

[0007] Another object of the present invention is to provide a bus duct, including the above-mentioned cover plate for the central PE line bus duct, which effectively reduces the temperature rise index of the bus duct during operation and improves the stability and safety of the bus duct.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A cover plate for a centrally placed PE line bus duct comprises a cover plate body. A positioning groove is provided at the midline position of the cover plate body along the length direction of the cover plate body. The positioning groove is used for inserting the centrally placed PE line.

[0010] Preferably, two mounting grooves are provided on the cover plate body on both sides of the positioning groove and parallel to the positioning groove, and the mounting grooves are used to set end connectors.

[0011] Preferably, a fixing groove is provided at the lower portion of each installation groove, and the fixing groove is used to install a fixing component that fixes the end connector in the installation groove.

[0012] Preferably, the cover plate body is an aluminum alloy extrusion molded part, and the cover plate body is an integrally molded structure.

[0013] Preferably, the cover plate body is a plate body whose surface is electrophoretically treated or a plate body whose surface is anodized.

[0014] A bus duct comprises two oppositely arranged cover plates for a central PE line bus duct as described above and two oppositely arranged side plates, wherein the two cover plates for the central PE line bus duct and the two side plates form an I-shaped structure, a PE line is inserted between the positioning grooves of the two cover plate bodies, two cavities are formed between the PE line and the two side plates, and the L1, L2, L3 and N phase conductors are grouped into two phases and are respectively located in the two cavities.

[0015] Preferably, each of the two mounting grooves of the cover plate body is provided with an end connector, and the end connector is used to be fixedly connected to the joint side plate. A fixing assembly is provided between each of the end connectors and the cover plate body so that the end connector is fixedly arranged in the mounting groove.

[0016] Preferably, each of the fixing components includes a fixing nut, which is arranged in the fixing groove and is fixedly connected to the corresponding end connector by a bolt.

[0017] Preferably, a friction layer is provided on the inner wall of each fixing groove, and the friction layer abuts against the side surface of the fixing nut.

[0018] Preferably, a limit baffle is provided in each of the fixing grooves, and the limit baffle abuts against an end of the corresponding fixing nut away from the joint side plate.

[0019] The utility model provides a cover plate for a centrally placed PE line bus duct, comprising a cover plate body, wherein a positioning groove is provided through the center line position of the cover plate body along the length direction of the cover plate body, and the positioning groove is used for inserting the centrally placed PE line.

[0020] By opening a positioning groove at the midline position, it is convenient to directly locate the center of the busbar. The PE line in the middle is inserted into the positioning groove to realize the center positioning of the cover plate relative to the busbar, thereby realizing the rapid positioning and installation of the busbar cover plate.

[0021] The further scheme provided in the present application can also achieve at least one of the following beneficial technical effects: the bus duct provided by the present invention includes two relatively arranged cover plates for the central PE line bus duct as described above and two relatively arranged side plates. The two cover plates for the central PE line bus duct and the two side plates form an I-shaped structure. A PE line is inserted between the positioning grooves of the two cover plate bodies. Two cavities are formed between the PE line and the two side plates. The L1, L2, L3 and N phase conductors are grouped into two phases and are respectively located in the two cavities.

[0022] The central placement of the PE conductor effectively reduces the temperature of the phase conductors previously located in the middle of the busbar, thereby lowering the temperature rise during busway operation and improving the stability and safety of the busway. Furthermore, the dual-zone (i.e., two-cavity) layout ensures consistent distances between each phase and the PE conductor, enabling the fastest possible connection to the grounding system in the event of a short circuit, reducing short-circuit intensity and improving busway safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is an axial schematic diagram of the cover structure for the central PE line bus duct in this embodiment;

[0025] Figure 2 This is a side view of the cover structure for the central PE bus duct in this embodiment;

[0026] Figure 3 This is an axial schematic diagram of the bus duct structure in this embodiment;

[0027] Figure 4 This is a side view of the bus duct structure in this embodiment;

[0028] Figure 5 Schematic diagram of the horizontal bending of the cover plate structure for the central PE line bus duct in this embodiment;

[0029] Figure 6 This is a schematic diagram of the vertical bending of the cover structure for the central PE line bus duct in this embodiment.

[0030] Figures 1-6 , the reference numerals include:

[0031] 1. Cover body; 2. Positioning slot; 3. Mounting slot; 4. Fixing slot; 5. End connector; 6. Fixing assembly; 61. Fixing nut; 7. Side panel; 8. PE line; 9. Cavity; 10. Connector side panel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. The embodiment of the present application discloses a cover plate for a central PE line bus duct.

[0034] The core of the utility model is to provide a cover plate for a centrally placed PE line bus duct.

[0035] Please refer to Figures 1 to 3 .

[0036] The cover plate for the central PE line bus duct provided by the present invention comprises a cover plate body 1. A positioning groove 2 is provided at the center line position of the cover plate body 1 along the length direction of the cover plate body 1. The positioning groove 2 is used to insert the central PE line.

[0037] The positioning groove is opened at the center line position to facilitate direct positioning of the busbar center. The PE line in the middle is inserted into the positioning groove to realize the center positioning of the cover plate relative to the busbar, thereby realizing the rapid positioning and installation of the busbar cover plate.

[0038] The cover plate for the central PE bus duct provided by the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0039] In a specific embodiment, reference Figures 1 to 3 , Figure 1 This is an axial schematic diagram of the cover structure for the central PE bus duct. Figure 2This is the side view of the cover structure for the central PE bus duct. Figure 3 The cover plate body 1 has two mounting slots 3 on both sides of the positioning slot 2 and parallel to the positioning slot 2. The mounting slots 3 are used to set the end connectors 5.

[0040] The installation slots 3 facilitate the installation of the end connectors 5, which in turn facilitate the subsequent installation and fixation of the joint side plates 10. Specifically, threaded holes can be provided in the installation slots 3, allowing the end connectors 5 to be fixed within the installation slots 3 using bolts. This effectively improves the convenience of installing the end connectors 5.

[0041] Based on any of the above embodiments, Figures 1 to 3 A fixing groove 4 is provided at the bottom of each installation groove 3 , and the fixing groove 4 is used to install a fixing component 6 that fixes the end connecting piece 5 in the installation groove 3 .

[0042] The end connectors 5 are secured to the cover body 1 by the fixing assembly 6, effectively avoiding the need for directly drilling holes in the cover body. This reduces the number of production steps for the cover body 1, speeds up production, and reduces costs, while also effectively improving the strength of the cover body 1. The provision of the fixing slot 4 facilitates the installation of the fixing assembly 6.

[0043] Based on any of the above embodiments, the cover plate body 1 is an aluminum alloy extruded part, forming an integral structure. Aluminum alloy has a low density, and even after extrusion, its strength and hardness are well maintained. This makes the busbar cover plate both lightweight and sturdy, making it easy to transport and install. Aluminum alloy also has excellent electrical conductivity and is non-magnetic, which positively impacts the electrical performance of the busbar. Furthermore, aluminum alloy has excellent corrosion resistance, ensuring a long service life even in humid or corrosive environments.

[0044] In a specific embodiment provided in the present application, the cover plate body 1 is a plate body with an electrophoretic surface treatment or a plate body with an anodized surface treatment. The cover plate body 1 adopts a plate body with an electrophoretic surface treatment, which can effectively enhance the corrosion resistance of the surface of the cover plate body 1. The electrophoretic coating technology can use the electric field to allow the charged paint particles to precipitate on the surface of the coated object (i.e., the cover plate body 1) and form a uniform coating film. This uniform coating film can effectively isolate the busbar duct cover plate from the erosion of air, moisture and other corrosive substances, thereby significantly enhancing its corrosion resistance. At the same time, it can also penetrate into the tiny pores of the material to achieve the effect of rust prevention of the inner plate. This is particularly important for the long-term use of the cover plate body 1 in a humid or corrosive environment. In addition, the coating film formed by electrophoretic coating usually has a high gloss, making the surface of the busbar duct cover plate smoother and brighter, thereby improving the overall aesthetics.

[0045] The cover plate body 1 is anodized. This treatment forms a dense oxide film on the surface of the cover plate body 1, effectively isolating it from air, moisture, and corrosive substances, significantly improving its corrosion resistance. Anodizing also increases the hardness of the cover plate body 1, making it more wear-resistant and scratch-resistant. This enhanced mechanical property helps extend the cover plate's service life and reduces replacement and maintenance costs due to wear and scratches.

[0046] Another core of the present invention is to provide a bus duct, including two relatively arranged central PE line bus duct cover plates and two relatively arranged side plates 7. The two central PE line bus duct cover plates and the two side plates 7 form an I-shaped structure. A PE line 8 is inserted between the positioning grooves 2 of the two cover plate bodies 1. Two cavities 9 are formed between the PE line 8 and the two side plates 7. The L1, L2, L3 and N phase conductors are grouped into two phases and are respectively located in the two cavities 9.

[0047] Two centrally located PE busway covers and two side panels 7 form an I-shaped structure. PE line 8 is inserted between the two positioning slots 2, centrally placing PE line 8 and avoiding the need for phase lines to be centered. The PE line 8 and the two side panels 7 form two cavities 9, with the L1, L2, L3, and N phase conductors grouped in pairs within each cavity 9. The L1, L2, L3, and N phase conductors can be arranged in pairs, and the two connector side panels 10 also serve as two PE lines, ensuring consistent distances between each phase and the PE line.

[0048] This embodiment provides a bus duct that uses a centrally located PE conductor, effectively reducing the temperature of the phase conductors previously located in the middle of the busbars. This reduces the temperature rise during operation and improves the bus duct's stability and safety. Furthermore, a dual-zone (i.e., two cavities) layout ensures consistent distances between each phase and the PE conductor, enabling the fastest possible connection to the grounding system in the event of a short circuit, thereby reducing short-circuit intensity and improving the bus duct's safety.

[0049] Based on any of the above embodiments, Figures 3 and 4 , Figure 4 The figure shows a side view of the busbar duct structure. Each cover plate body 1 has two mounting slots 3 provided with end connectors 5, which are used to securely connect to the connector side plates 10. A fixing assembly 6 is provided between each end connector 5 and the cover plate body 1 to securely secure the end connector 5 within the mounting slots 3.

[0050] The end connectors 5 are secured to the cover body 1 through the fixing assembly 6, effectively avoiding the need for direct drilling of holes in the cover body. This approach reduces the number of production steps for the cover body 1, speeding up production and reducing costs, while also effectively improving the strength of the cover body 1. The provision of the fixing slot 4 facilitates the installation of the fixing assembly 6.

[0051] Based on any of the above embodiments, Figures 3 and 4 Each fixing assembly 6 includes a fixing nut 61, which is arranged in the fixing groove 4 and is fixedly connected to the corresponding end connector 5 by a bolt.

[0052] The fixing nut 61 is used to fix the end connector 5, effectively improving the installation and removal efficiency of the end connector 5. Optionally, the fixing nut 61 can be a T-nut. The use of a T-nut can effectively increase the contact area between the fixing nut 61 and the inner wall of the fixing groove 4, thereby effectively improving the installation stability of the fixing nut 61.

[0053] Based on any of the above embodiments, a friction layer (not shown) is provided on the inner wall of each fixing groove 4, which abuts against the side surface of the fixing nut 61. The use of the friction layer can further increase the friction between the fixing nut 61 and the inner wall of the fixing groove 4, thereby further improving the installation stability of the fixing nut 61.

[0054] Based on any of the above embodiments, a limit stopper (not shown) is provided in each fixing slot 4, which abuts against the end of the corresponding fixing nut 61 that is away from the joint side plate 10. The use of the limit stopper can effectively locate the installation position of the fixing nut 61, thereby preventing the fixing nut 61 from moving excessively relative to the end connector 5, thereby preventing the two from being fixed by bolts.

[0055] Based on any of the above embodiments, Figure 5 and Figure 6 In some special bus duct installation areas, such as wall corners, the structure shown in the figure can be used, and angle connectors can be used at the connection points. It can be directly assembled without welding, reducing production processes, speeding up production and reducing costs.

[0056] The above describes in detail the cover plate for a central PE bus duct provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that for ordinary technicians in this technical field, various improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A cover plate for a central PE line bus duct, comprising a cover plate body (1), characterized in that: A positioning groove (2) is provided at the center line of the cover plate body (1) along the length direction of the cover plate body (1), and the positioning groove (2) is used for inserting a centrally placed PE line.

2. A cover plate for a central PE bus duct according to claim 1, characterized in that: Two mounting grooves (3) are provided on the cover plate body (1) on both sides of the positioning groove (2) and are parallel to the positioning groove (2). The mounting grooves (3) are used to arrange end connectors (5).

3. A cover plate for a central PE bus duct according to claim 2, characterized in that: A fixing groove (4) is provided at the bottom of each installation groove (3), and the fixing groove (4) is used to install a fixing component (6) that fixes the end connecting piece (5) in the installation groove (3).

4. A cover plate for a central PE bus duct according to any one of claims 1 to 3, characterized in that: The cover plate body (1) is an aluminum alloy extrusion molded part, and the cover plate body (1) is an integrally molded structure.

5. A cover plate for a central PE bus duct according to any one of claims 1 to 3, characterized in that: The cover plate body (1) is a plate body with a surface subjected to electrophoresis treatment or a plate body with a surface subjected to anodizing treatment.

6. A bus duct, characterized in that: The utility model comprises two oppositely arranged covers for a central PE bus duct as claimed in claim 3 and two oppositely arranged side plates (7), wherein the two covers for a central PE bus duct and the two side plates (7) form an I-shaped structure, a PE line (8) is inserted between the positioning grooves (2) of the two cover plate bodies (1), and two cavities (9) are formed between the PE line (8) and the two side plates (7), and the L1, L2, L3 and N phase conductors form a group of two phases and are respectively located in the two cavities (9).

7. The bus duct according to claim 6, characterized in that: Each of the two mounting grooves (3) of the cover plate body (1) is provided with an end connecting piece (5), and the end connecting piece (5) is used for fixed connection with the joint side plate (10). A fixing assembly (6) is provided between each of the end connecting piece (5) and the cover plate body (1) so that the end connecting piece (5) is fixedly arranged in the mounting groove (3).

8. The bus duct according to claim 7, characterized in that: Each of the fixing assemblies (6) comprises a fixing nut (61), the fixing nut (61) being disposed in the fixing groove (4), and the fixing nut (61) being fixedly connected to the corresponding end connector (5) via a bolt.

9. The bus duct according to claim 8, characterized in that: A friction layer is provided on the inner wall of each fixing groove (4), and the friction layer abuts against the side surface of the fixing nut (61).

10. The bus duct according to claim 8, characterized in that: A limit baffle is provided in each fixing groove (4), and the limit baffle abuts against an end of the corresponding fixing nut (61) away from the joint side plate (10).

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