A middle PE wire bus duct

Abstract

The utility model relates to the technical field of middle -position PE line bus duct, and disclose a kind of middle -position PE line bus duct, including I-shaped section, recess in the both sides of I-shaped section is provided with several character-shaped shell, the side wall between several character-shaped shell and I-shaped section forms mounting groove, the inside of mounting groove is installed cable, the lock slot for connecting the end of I-shaped section is provided on the outer wall of several character-shaped shell, the side wall of several character-shaped shell and I-shaped section is provided with interlocking sawtooth lock catch groove, the recess of its main part and I-shaped section is clamped by cooperation in the process of several character-shaped shell assembly movement, cable can be directly fixed;Meanwhile, the end of I-shaped section is inserted into lock slot, sawtooth lock catch groove of I-shaped section and several character-shaped shell is mutually engaged, both can limit the displacement of several character-shaped shell, and each core component can be overall limited, effectively avoid the component deviation problem when subsequent assembly fastening component.

Description

Technical Field

[0001] This utility model relates to the technical field of centrally located PE line busbar trunking, specifically a centrally located PE line busbar trunking. Background Technology

[0002] Busbar trunking is a device in low-voltage power supply systems responsible for transmitting and distributing electrical energy. It has many advantages, such as high current carrying capacity, high protection level, convenient power distribution, compact structure, easy installation and maintenance, and long service life. With the development of the times, the improvement of living standards, and the progress of industrial automation, the electrical load is increasing. Using busbar trunking to replace cables, especially in hotels, factories, mines, high-rise buildings, and public facilities, has become a development trend.

[0003] The centrally located PE busbar trunking mainly consists of a centrally located PE conductor, phase conductors, neutral conductors, an insulation layer, a metal casing, and fixing accessories. During assembly, the core components must be assembled in the predetermined order of "internal conductors (PE conductors, phase conductors, neutral conductors) → insulation layer → metal casing," and finally, the units are spliced ​​and fixed into a complete system using fixing accessories.

[0004] However, in existing technologies, the metal casing only serves as external protection and cannot effectively secure and limit the internal conductors and insulation layers. This leads to the easy displacement of internal core components during subsequent installation and fixing of accessories, which not only increases adjustment costs but also directly affects the overall assembly efficiency. To address this, we propose a centrally located PE line busbar trunking. Utility Model Content

[0005] The purpose of this utility model is to provide a centrally located PE busbar trunking to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a centrally located PE busbar trunking, comprising an I-beam profile, wherein a U-shaped outer shell is provided in the grooves on both sides of the I-beam profile, and an installation groove is formed between the U-shaped outer shell and the side wall of the I-beam profile, wherein a cable is installed inside the installation groove, and a locking slot for connecting the end of the I-beam profile is provided on the outer wall of the U-shaped outer shell, and mutually cooperating serrated locking slots are provided on both the U-shaped outer shell and the side wall of the I-beam profile.

[0007] Preferably, a foam sealing strip is installed inside the lock slot, and the end of the I-beam is inserted into the lock slot.

[0008] Preferably, the two protruding parts of the 'Z' shaped outer shell are side wings, and the side wings are provided with drainage holes. The side wall between the two side wings of the 'Z' shaped outer shell is integrally formed with heat dissipation teeth.

[0009] Preferably, the U-shaped housing, the I-beam profile, and the cable are all provided with mounting and fastening holes, and fastening components for fixing the U-shaped housing, the I-beam profile, and the cable are installed in the mounting and fastening holes.

[0010] Preferably, the fastening assembly includes a screw and an insulating tube movably sleeved on the outer wall of the screw, the ends of the screw and the insulating tube passing through the assembly fastening holes provided by the Z-shaped housing, the I-shaped profile and the cable.

[0011] Preferably, the outer wall of the screw is movably fitted with a butterfly spring at both ends of the insulating tube, and the end of the screw is threaded with a nut.

[0012] Preferably, the upper and lower surfaces of the I-beam profile are provided with connector mounting holes at both ends. End connectors are installed at the connector mounting holes of the I-beam profile by bolts. T-shaped joint side plates are provided at both ends of the I-beam profile. Several fastening screws are installed on the T-shaped joint side plates, and the fastening screws are threadedly connected to the end connectors.

[0013] Preferably, the cable includes a copper conductor, and an insulating sheath is provided on the outer wall of the copper conductor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, during assembly, the cable is first inserted into the two grooves of the I-beam profile, and then the main body of the U-shaped outer shell is correspondingly inserted into the grooves of the I-beam profile. During the assembly and movement of the U-shaped outer shell, the main body and the grooves of the I-beam profile cooperate to generate a clamping force, which can directly fix the cable. At the same time, the end of the I-beam profile is inserted into the locking slot, and the serrated locking grooves of the I-beam profile and the U-shaped outer shell engage with each other, which can not only limit the displacement of the U-shaped outer shell, but also limit the overall positioning of each core component, effectively avoiding component misalignment during subsequent assembly and fastening of components.

[0015] In addition, the interlocking serrated locking grooves on the I-beam profile and the Z-shaped outer shell not only increase the contact area between the two and improve the connection stability, but also simultaneously expand the heat conduction area and optimize the heat dissipation effect. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall left-side structure provided for this utility model; Figure 2 This is a schematic diagram of the overall side view structure of the present invention; Figure 3 This is a schematic diagram of the I-beam profile structure provided by this utility model; Figure 4 A schematic diagram of the U-shaped outer shell structure provided by this utility model; Figure 5 A schematic diagram of the copper conductor structure provided by this utility model; Figure 6 The overall exploded view provided for this utility model; Figure 7 A schematic diagram of the fastening component structure provided by this utility model.

[0017] In the diagram: 1. I-beam profile; 11. Assembly and fastening hole; 12. Connector mounting hole; 2. Z-shaped outer shell; 21. Lock slot; 22. Foamed sealing strip; 23. Drain hole; 24. Heat dissipation teeth; 3. Mounting groove; 4. Cable; 41. Copper conductor; 42. Insulating sheath; 5. Fastening assembly; 51. Screw; 52. Insulating tube; 53. Butterfly spring; 54. Nut; 6. Serrated locking groove; 7. T-shaped connector side plate; 71. Fastening screw; 72. End connector. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-7 As shown, a centrally located PE busbar trunking includes an I-beam profile 1. A U-shaped outer shell 2 is provided in the grooves on both sides of the I-beam profile 1. An mounting groove 3 is formed between the U-shaped outer shell 2 and the side wall of the I-beam profile 1. A cable 4 is installed inside the mounting groove 3. A locking slot 21 for connecting the end of the I-beam profile 1 is provided on the outer wall of the U-shaped outer shell 2. Serrated locking grooves 6 that cooperate with each other are provided on both the U-shaped outer shell 2 and the side wall of the I-beam profile 1.

[0020] The I-beam profile 1 is designed as a large I-beam, which has a larger contact surface with the U-shaped outer shell 2, and at the same time, it has a larger contact surface with the air. This allows it to quickly carry the heat absorbed between the phases to the outer surface for heat dissipation, thereby improving the heat dissipation effect of the busbar trunking and increasing its current carrying capacity.

[0021] The Z-shaped outer shell 2, the I-shaped profile 1, and the conductor are all equipped with mounting and fastening holes 11. They are assembled and installed by fastening components 5, which eliminates the defects of existing riveting structures such as poor fit between the busbar and the outer shell and poor heat dissipation. At the same time, it reduces the investment in riveting equipment and lowers the equipment investment cost for enterprises.

[0022] The U-shaped housing 2 has locking slots 21 at both ends for insertion into the I-shaped profile 1. A foam sealing strip 22 is provided inside the U-shaped locking slot 21 for sealing after insertion, improving the protection level to IP67.

[0023] During assembly, cable 4 is first inserted into the two grooves of the I-beam profile 1, and then the main body of the U-shaped housing 2 is inserted into the corresponding grooves of the I-beam profile 1. During the assembly and movement of the U-shaped housing 2, its main body and the grooves of the I-beam profile 1 cooperate to generate clamping force, which can directly fix the cable 4; at the same time, the end of the I-beam profile 1 is inserted into the locking slot 21, and the serrated locking grooves 6 of the I-beam profile 1 and the U-shaped housing 2 engage with each other, which can not only limit the displacement of the U-shaped housing 2, but also limit the overall positioning of each core component, effectively avoiding component displacement problems when assembling and fastening components 5 later.

[0024] In addition, the interlocking serrated locking grooves 6 on the I-shaped profile 1 and the Z-shaped outer shell 2 not only increase the connection contact area and improve the connection stability, but also simultaneously expand the heat conduction area and optimize the heat dissipation effect.

[0025] In this embodiment, a foam sealing strip 22 is installed inside the lock slot 21, and the end of the I-beam 1 is inserted into the lock slot 21. The foam sealing strip 22 increases the tightness and sealing of the connection between the lock slot 21 and the I-beam 1.

[0026] In this embodiment, the two protruding parts of the U-shaped outer shell 2 are side wings, and the side wings are provided with drainage holes 23, which can effectively prevent rainwater from accumulating on the surface. The side wall between the two side wings of the U-shaped outer shell 2 is integrally formed with heat dissipation teeth 24, and the two ends of the heat dissipation teeth 24 extend to the two ends of the U-shaped outer shell 2 respectively.

[0027] In this embodiment, mounting and fastening holes 11 are provided through the U-shaped housing 2, the I-shaped profile 1, and the cable 4. Fastening components 5 for fixing the U-shaped housing 2, the I-shaped profile 1, and the cable 4 are installed in the mounting and fastening holes 11. The fastening components 5 include a screw 51 and an insulating tube 52 movably sleeved on the outer wall of the screw 51. The ends of the screw 51 and the insulating tube 52 pass through the mounting and fastening holes 11 provided in the U-shaped housing 2, the I-shaped profile 1, and the cable 4. A butterfly spring 53 is movably sleeved on both ends of the insulating tube 52 on the outer wall of the screw 51. A nut 54 is threadedly connected to the end of the screw 51.

[0028] During assembly, the ends of the screw 51 and the insulating tube 52 are passed through the assembly fastening holes 11 provided in the Z-shaped housing 2, the I-shaped profile 1 and the cable 4 and extended to the outside of the other Z-shaped housing 2. The two sets of Z-shaped housings 2 are brought closer together by the cooperation of the nut 54 and the screw 51, thereby locking the two sets of Z-shaped housings 2.

[0029] In addition, a disc spring 53 is provided that can generate elastic deformation during locking to provide continuous clamping force, ensuring tight contact between the internal conductors (PE wire, phase wire, neutral wire) and the insulation layer. Even under long-term vibration or temperature fluctuation environments, it can maintain the tightness of the initial assembly, avoiding increased contact resistance or localized overheating caused by loosening.

[0030] In this embodiment, connector mounting holes 12 are provided at both the left and right ends of the upper and lower surfaces of the I-beam profile 1. End connectors 72 are installed at the connector mounting holes 12 of the I-beam profile 1 by bolts. T-shaped connector side plates 7 are provided at both the left and right ends of the I-beam profile 1. Several fastening screws 71 are installed on the T-shaped connector side plates 7. The fastening screws 71 are threadedly connected to the end connectors 72. The T-shaped connector of the busbar connector adopts a "T"-shaped profile, which has a stronger overall structure. It is fixed with bolts, which makes installation more convenient and has a stronger overall integrity.

[0031] In this embodiment, the cable 4 includes a copper conductor 41, and an insulating sheath 42 is provided on the outer wall of the copper conductor 41. The copper conductor 41 uses a 3mm conductive copper busbar. By increasing the height of the copper busbar and reducing its thickness, the current carrying capacity and heat dissipation capacity are improved. Under the same cross-section, the higher the copper busbar, the larger the surface area, the greater the current carrying capacity, and the better the heat dissipation.

[0032] The insulating skin 42 uses high-temperature powder insulation, which can form a dense insulating layer on the surface. High-temperature powder insulation can effectively solve the problem of perforated insulation, avoid the conductor at the perforation position being exposed, and prevent phase-to-phase short circuits. At the same time, the high-temperature powder insulation has a good structure and good heat dissipation performance.

[0033] Meanwhile, an assembly and fastening hole 11 is formed between the copper conductor 41 and the insulating skin 42 by punching, which is used for busbar assembly.

[0034] Working principle: During assembly, cable 4 is first inserted into the two grooves of the I-beam profile 1, and then the main body of the U-shaped outer shell 2 is inserted into the corresponding grooves of the I-beam profile 1. During the assembly and movement of the U-shaped outer shell 2, its main body and the grooves of the I-beam profile 1 cooperate to generate clamping force, which can directly fix the cable 4; at the same time, the end of the I-beam profile 1 is inserted into the locking slot 21, and the serrated locking grooves 6 of the I-beam profile 1 and the U-shaped outer shell 2 engage with each other, which can not only limit the displacement of the U-shaped outer shell 2, but also limit the overall positioning of each core component, effectively avoiding component displacement problems when assembling and fastening the components 5 later.

[0035] In addition, the interlocking serrated locking grooves 6 on the I-shaped profile 1 and the Z-shaped outer shell 2 not only increase the connection contact area and improve the connection stability, but also simultaneously expand the heat conduction area and optimize the heat dissipation effect.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrally located PE busbar trunking, comprising an I-beam profile (1), wherein a U-shaped outer shell (2) is provided in the grooves on both sides of the I-beam profile (1), characterized in that, An installation groove (3) is formed between the Z-shaped outer shell (2) and the side wall of the I-shaped profile (1). A cable (4) is installed inside the installation groove (3). A locking slot (21) for connecting the end of the I-shaped profile (1) is provided on the outer wall of the Z-shaped outer shell (2). Both the Z-shaped outer shell (2) and the side wall of the I-shaped profile (1) are provided with mutually cooperating sawtooth locking grooves (6).

2. The centrally located PE busbar trunking according to claim 1, characterized in that: A foamed sealing strip (22) is installed inside the lock slot (21), and the end of the I-beam (1) is inserted into the lock slot (21).

3. The centrally located PE busbar trunking according to claim 2, characterized in that: The two protruding parts of the zigzag shell (2) are side wings, and the side wings are provided with drainage holes (23). The zigzag shell (2) has heat dissipation teeth (24) integrally formed on the side wall between the two side wings.

4. A centrally located PE busbar trunking system according to claim 3, characterized in that: The zigzag shell (2), the I-beam profile (1) and the cable (4) are all provided with mounting and fastening holes (11), and fastening components (5) for fixing the zigzag shell (2), the I-beam profile (1) and the cable (4) are installed in the mounting and fastening holes (11).

5. A centrally located PE busbar trunking system according to claim 4, characterized in that: The fastening assembly (5) includes a screw (51) and an insulating tube (52) that is movably sleeved on the outer wall of the screw (51). The ends of the screw (51) and the insulating tube (52) pass through the mounting fastening holes (11) provided by the Z-shaped shell (2), the I-shaped profile (1) and the cable (4).

6. A centrally located PE busbar trunking system according to claim 5, characterized in that: The outer wall of the screw (51) is movably sleeved with a butterfly spring (53) at both ends of the insulating tube (52), and the end of the screw (51) is threaded with a nut (54).

7. A centrally located PE busbar trunking system according to claim 1, characterized in that: The upper and lower surfaces of the I-beam profile (1) are provided with connector mounting holes (12) at both ends. End connectors (72) are installed at the connector mounting holes (12) of the I-beam profile (1) by bolts. T-shaped connector side plates (7) are provided at both ends of the I-beam profile (1). Several fastening screws (71) are installed on the T-shaped connector side plates (7). The fastening screws (71) are threadedly connected to the end connectors (72).

8. A centrally located PE busbar trunking system according to claim 1, characterized in that: The cable (4) includes a copper conductor (41) with an insulating sheath (42) on its outer wall.

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