T-shaped vertical busbar connecting device

Abstract

The utility model relates to the technical field of T-shaped vertical busbar connecting devices, in particular to a T-shaped vertical busbar connecting device, which comprises a main bus, a branch bus, a vertical bus, a switching unit and a zero bar. The bottom of the main bus is connected with a vertical bus through a branch bus; the vertical bus is provided with a disposable protective cover and a switching unit, and the bottom of the vertical bus is connected with a zero bar; the zero bar is arranged at the lowest end of the switch equipment, the upper part is vertically connected with the C-shaped copper bar, and the rear side is provided with the main grounding bar; the upper part of the main grounding bar is vertically connected with the C-shaped copper bar; the top of the C-shaped copper bar is fixed below the main bus through a crosspiece support, the side surface of the C-shaped copper bar is provided with a terminal batten, and the rear side of the C-shaped copper bar and the terminal batten are fixed together through an insulating support. Through the optimization design of the current-carrying interface, the switch current-carrying capacity is larger, the heat dissipation is better, the installation is convenient, the product performance can be greatly improved when the switch cabinet is used, and the power distribution equipment is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of T-type vertical busbar connection devices, and in particular to a T-type vertical busbar connection device. Background Technology

[0002] Vertical busbars are a crucial component of low-voltage switchgear, distributing electrical energy from the main busbar to the various outgoing switchgear to ensure reliable power supply to the system. The performance of a busbar is primarily evaluated by its current-carrying capacity, heat dissipation, and structural layout. Traditional low-voltage switchgear vertical busbars typically employ a rectangular copper busbar structure. This structure suffers from drawbacks such as large space requirements, poor heat dissipation, and a lack of advanced technology. Increased conductor temperature leads to a decrease in current-carrying capacity, and given the skin effect of current, arranging conductors with a large heat dissipation area within a limited space is critical. We have developed a non-standard vertical busbar structure that addresses this problem. Utility Model Content

[0003] To overcome the shortcomings of existing devices, this utility model provides a T-type vertical busbar connection device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a T-type vertical busbar connection device, including a main busbar, branch busbars, a vertical busbar, a transfer unit, and a neutral busbar; the main busbar is a rectangular copper busbar, located at the top of the switchgear, spanning across the equipment from left to right, and is provided with three groups A, B, and C respectively, with the bottom connected to the vertical busbar through the branch busbars, and a busbar overlap bar on the right side; a disposable protective cover and a transfer unit are installed on the vertical busbar, and the bottom is connected to the neutral busbar; the transfer unit includes a transfer box, a front plug, a transfer bar, and... The rear socket; the adapter box is fixed on the vertical busbar, and the front plug inside has three sets, each set is connected to the copper busbar of the vertical busbar, and is connected to the rear socket through the adapter; the neutral busbar is installed at the bottom of the switchgear, and there is a neutral busbar connection bar on the right side, which is vertically connected to the C-type copper busbar above, and there is a main grounding busbar on the rear side; there is a grounding busbar connection bar on the right side of the main grounding busbar, which is vertically connected to the C-type copper busbar above; the top of the C-type copper busbar is fixed to the bottom of the main busbar through the horizontal bracket, and there is a terminal strip on the side, and the rear side is fixed together with the terminal strip through the insulating bracket.

[0005] According to another embodiment of the present invention, it further includes a C-shaped copper busbar that is fixedly supported by the rear insulator of the main busbar.

[0006] According to another embodiment of the present invention, the busbar clamp is installed on the top of the crossbar support, and four sets of busbar clamps are arranged in the horizontal direction, including a lower busbar clamp and an upper busbar clamp; the lower busbar clamp is fixed to the crossbar support and clamps the main busbar between the lower busbar clamp and the upper busbar clamp.

[0007] According to another embodiment of the present invention, the disposable protective cover is further included on the vertical busbar.

[0008] According to another embodiment of the present invention, the front plug is further provided with a spring conductive sheet inside, which is connected to the front end of the adapter bar, and the rear end of the adapter bar is fixed to the rear socket; the front plug and the rear socket are provided with an insulating shell on the outside, and the copper busbar hole is a horizontal mounting hole.

[0009] According to another embodiment of the present invention, the vertical busbar is further provided with an insulating back plate behind it, the vertical busbar is a T-shaped busbar, and a T-shaped busbar protective cover is provided on the top.

[0010] According to another embodiment of the present invention, the insulating support is further provided with five groups arranged in a vertical direction.

[0011] According to another embodiment of the present invention, the zero-row and main grounding rows are arranged horizontally and parallel to each other below the equipment.

[0012] The beneficial effects of this invention are as follows: by specially designing the interface of the vertical busbar, the current carrying capacity of the conductor is increased, and the heat dissipation performance is improved. According to experimental data, when rectangular copper busbars and T-shaped copper busbars of the same cross-section are tested at the same temperature, the temperature of the rectangular copper busbar is 12°C higher than that of the T-shaped copper busbar under the same current test. Moreover, based on the analysis and calculation of rectangular copper busbars and T-shaped copper busbars of the same cross-section, the outer surface perimeter of the T-shaped copper busbar is 20% larger than that of the rectangular copper busbar. According to the skin effect of current, this indicates better heat dissipation, which is consistent with the experimental data. This innovative new T-shaped vertical busbar, through the optimized design of the current carrying interface, enables the switch to carry a larger current, dissipate heat better, and is easy to install. When used in switch cabinets, it can greatly improve product performance, making the power distribution equipment more stable and reliable. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the inside of the adapter box;

[0016] Figure 3 This is a schematic diagram of the insulating backplate.

[0017] Figure 4 This is a top view of the present invention.

[0018] In the diagram: 1. Main busbar, 2. Branch busbar, 3. Disposable protective cover, 4. Transfer unit, 4-1. Transfer box, 4-2. Front plug, 4-3. Transfer bar, 4-4. Rear socket, 5. Neutral bar, 5-1. Neutral bar overlap bar, 6. Main grounding bar, 6-1. Grounding bar overlap bar, 7. Insulating bracket, 8. C-type copper busbar, 9. Terminal strip, 10. Horizontal support bracket, 11. Insulating back plate, 12. Vertical busbar, 13. T-type busbar protective cover, 14. Insulator, 15. Busbar clamp, 15-1. Lower busbar clamp, 15-2. Upper busbar clamp, 16. Busbar overlap bar. Detailed Implementation

[0019] like Figure 1 This is a schematic diagram of the structure of this utility model, a T-shaped vertical busbar connection device, including a main busbar 1, a branch busbar 2, a vertical busbar 12, a transfer unit 4, and a neutral busbar 5; the main busbar 1 is a rectangular copper busbar located at the top of the switchgear, spanning across the equipment from left to right, and is provided with three groups A, B, and C respectively, and its bottom is connected to the vertical busbar 12 through the branch busbar 2, with a busbar overlap bar 16 on the right side; the vertical busbar 12 is equipped with a disposable protective cover 3 and a transfer unit 4, and its bottom is connected to the neutral busbar 5; the transfer unit 4 includes a transfer box 4-1, a front plug 4-2, a transfer bar 4-3, and a rear socket 4-4; The adapter box 4-1 is fixed on the vertical busbar 12. The front plug 4-2 inside has three sets, each set is connected to the copper busbar of the vertical busbar 12, and is connected to the rear socket 4-4 through the adapter 4-3. The neutral busbar 5 is installed at the bottom of the switchgear. The right side has a neutral busbar overlap 5-1, which is vertically connected to the C-type copper busbar 8 above. The rear side has a main grounding busbar 6. The right side of the main grounding busbar 6 has a grounding busbar overlap 6-1, which is vertically connected to the C-type copper busbar 8 above. The top of the C-type copper busbar 8 is fixed below the main busbar 1 through the crossbar bracket 10. The side has a terminal strip 9, and the rear side is fixed together with the terminal strip 9 through the insulating bracket 7.

[0020] Specifically, this device can distribute primary electrical energy in the power distribution circuit to each branch switch, and its structure is more compact, its current carrying capacity is higher, and its installation and maintenance are more convenient. The device is used by connecting the drawer of the electrical equipment to the T-shaped busbar, and is equipped with a safety protection device, making it safer and more reliable to operate. The neutral busbar 5 is horizontally installed at the bottom front of the cabinet and is used as the neutral wire for the equipment. The neutral busbar lap joint 5-1 is connected to the C-type copper busbar 8 at its right end. The C-type copper busbar 8 is installed vertically inside the cabinet. The main grounding busbar 6 is also horizontally arranged below the front of the switch equipment, behind the neutral busbar 5. The grounding busbar lap joint 6-1 is at the right end of the main grounding busbar 6. The function of the lap joint is to connect all the switch equipment on the left and right sides together for grounding protection. The insulating bracket 7 is located behind the vertical neutral busbar 12 and the main grounding busbar 6, and serves as insulation and support to prevent the neutral wire of the equipment from being grounded to the equipment shell. There are five sets arranged vertically. The terminal strip 9 is installed on the insulating bracket 7 together with the vertical neutral busbar 5 and the main grounding busbar 6 and is fixed with secondary wiring terminals. The horizontal support bracket 10 is installed above the equipment, and the lower part of the main busbar 1 is used in conjunction with the busbar clamp 15.

[0021] Specifically, the main busbar 1 is located at the top of the switchgear, spanning the equipment from left to right. Its rectangular shape is used to arrange three groups (A, B, and C) from back to front, for horizontally transmitting electrical energy to each switchgear unit. The branch busbar 2 is Z-shaped and connects the main busbar to the vertical busbar; it also has three groups, similar to the main busbar. The primary protective cover 3 is attached to the vertical busbar 12. When no outgoing switch is installed, the cover automatically closes. When a switch is installed, the cover is opened by the contacts on the switch to connect the power supply. The busbar splicing strip 16 is used to connect the main busbar 1 to the remaining switchgear units.

[0022] According to another embodiment of the present invention, it further includes a C-shaped copper busbar 8 fixedly supported by the rear insulator 14 of the main busbar 1.

[0023] According to another embodiment of the present invention, the busbar clamp 15 is installed on the top of the crossbar support 10. The busbar clamp 15 is provided in four sets in the horizontal direction, including a lower busbar clamp 15-1 and an upper busbar clamp 15-2. The lower busbar clamp 15-1 is fixed to the crossbar support 10 and clamps the main busbar 1 between the lower busbar clamp 15-1 and the upper busbar clamp 15-2.

[0024] Specifically, the busbar clamp 15 is made of SMC insulation material. When installing the main busbar 1, the lower busbar 15-1 clamp is first installed and fixed on the crossbar bracket 10, then the main busbar 1 is installed in place, and finally the upper busbar 15-2 clamp is placed on top, and the upper and lower busbar clamps are fixed together.

[0025] According to another embodiment of the present invention, the disposable protective cover 3 is further attached to the vertical busbar 12.

[0026] According to another embodiment of the present invention, the front plug 4-2 is provided with a spring conductive sheet inside, which is connected to the front end of the adapter 4-3, and the rear end of the adapter 4-3 is fixed to the rear socket 4-4; the front plug 4-2 and the rear socket 4-4 are provided with an insulating shell on the outside, and the copper busbar hole is a horizontal mounting hole.

[0027] Specifically, the adapter unit 4 is installed on the vertical busbar and mainly consists of an adapter box 4-1, a front plug 4-2, an adapter strip 4-3, and a rear socket 4-4. The adapter box 4-1 is drawer-shaped and provides an installation platform and protection for the internal components. The front plug of component 4-2 has three sets, which are connected to the copper busbar of the vertical busbar respectively. The outer shell of the front plug is made of SMC high insulation material and has four spring conductive plates inside that make elastic contact with the conductor. The front end of the adapter strip 4-3 is connected to the front plug 4-2 and contacts the spring conductive plates inside. The rear end is fixed to the rear socket 4-4. The rear socket 4-4, like the front plug 4-2, has an external insulating cover. The copper busbar hole is a horizontal mounting hole, and the inside is an adapter strip, which can realize the conversion from vertical connection to horizontal connection. Moreover, the bending dimension of the adapter strip can be customized according to the position of the switch, which greatly improves the convenience of installation. At the same time, the external insulating cover improves the safety of the equipment.

[0028] According to another embodiment of the present invention, the vertical busbar 12 is further provided with an insulating back plate 11 behind it, the vertical busbar 12 is a T-shaped busbar, and a T-shaped busbar protective cover 13 is provided on the top.

[0029] Specifically, the SMC insulation backplate 11 has a serrated interface, which is used to fix the three-phase vertical busbar 12 and to insulate and protect the busbar from the equipment; the three-phase vertical busbar 12 is installed vertically on the left side of the equipment, and its interface is T-shaped. The horizontal straight part of the T-shaped busbar has semi-circular protrusions at both ends, which makes the contact surface smaller during installation and easier to maintain and operate. The vertical part of the T-shaped busbar is used to connect the switch, and its tip has a rounded corner design for easy installation; the protective cover 13 of the T-shaped busbar is installed on the top of the T-shaped busbar to insulate and protect the top.

[0030] According to another embodiment of the present invention, the insulating support 7 is further provided with five groups arranged in a vertical direction.

[0031] According to another embodiment of the present invention, the zero-row 5 and the main grounding row 6 are arranged horizontally and parallel to each other below the equipment.

[0032] The above description is illustrative only and not restrictive of this utility model. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.

Claims

1. A T-type vertical busbar connection device, characterized in that, It includes a main busbar (1), a branch busbar (2), a vertical busbar (12), a transfer unit (4), and a neutral busbar (5); the main busbar (1) is a rectangular copper busbar located on the top of the switchgear, spanning across the equipment from left to right, and is provided with three groups: A, B, and C. The bottom is connected to the vertical busbar (12) through the branch busbar (2), and a busbar overlap bar (16) is provided on the right side; a disposable protective cover (3) and a transfer unit (4) are installed on the vertical busbar (12), and the bottom is connected to the neutral busbar (5); the transfer unit (4) includes a transfer box (4-1), a front plug (4-2), a transfer bar (4-3), and a rear socket (4-4); the transfer box (4-1) is fixed on the vertical busbar. On the line (12), there are three sets of internal front plugs (4-2), each set is connected to the copper busbar of the vertical busbar (12) and connected to the rear socket (4-4) through the adapter (4-3); the neutral busbar (5) is installed at the bottom of the switchgear, and there is a neutral busbar overlap (5-1) on the right side, which is vertically connected to the C-type copper busbar (8) above, and there is a main grounding busbar (6) on the rear side; there is a grounding busbar overlap (6-1) on the right side of the main grounding busbar (6), which is vertically connected to the C-type copper busbar (8) above; the top of the C-type copper busbar (8) is fixed below the main busbar (1) through the crossbar bracket (10), and there is a terminal strip plate (9) on the side, and the rear side is fixed together with the terminal strip plate (9) through the insulating bracket (7).

2. The T-type vertical busbar connection device according to claim 1, characterized in that, The main busbar (1) is fixedly supported by the rear insulator (14) of the C-type copper busbar (8).

3. The T-type vertical busbar connection device according to claim 1, characterized in that, The top of the crossbar support (10) is equipped with a busbar clamp (15). The busbar clamp (15) has four sets in the horizontal direction, including a lower busbar clamp (15-1) and an upper busbar clamp (15-2). The lower busbar clamp (15-1) is fixed to the crossbar support (10) and clamps the main busbar (1) between it and the upper busbar clamp (15-2).

4. The T-type vertical busbar connection device according to claim 1, characterized in that, The disposable protective cover (3) is fastened onto the vertical busbar (12).

5. The T-type vertical busbar connection device according to claim 1, characterized in that, The front plug (4-2) has a spring conductive sheet inside, which is connected to the front end of the adapter (4-3). The rear end of the adapter (4-3) is fixed to the rear socket (4-4). The front plug (4-2) and the rear socket (4-4) are provided with an insulating shell on the outside, and the copper busbar holes are horizontal mounting holes.

6. The T-type vertical busbar connection device according to claim 1, characterized in that, An insulating backplate (11) is provided behind the vertical busbar (12). The vertical busbar (12) is a T-shaped busbar and a T-shaped busbar protective cover (13) is provided on the top.

7. The T-type vertical busbar connection device according to claim 1, characterized in that, The insulating support (7) has five sets arranged vertically.

8. The T-type vertical busbar connection device according to claim 1, characterized in that, The zero-row (5) and the main grounding row (6) are arranged horizontally and parallel below the equipment.

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