Busbar capable of being flexibly plugged into and pulled out of miniature circuit breaker in power distribution box in electrified manner

Abstract

The utility model discloses a busbar capable of electrically and flexibly plugging a miniature circuit breaker in a distribution box, which comprises a back plate and a combiner box body, the combiner box body is a rectangular body, a knife switch is arranged in the combiner box body, the back surface of the combiner box body is fixed on the back plate, a first connecting end connected with a main switch is led out from the top of the combiner box body, and a second connecting end connected with the main switch is led out from the top of the combiner box body. The left side and the right side of the combiner box body are respectively provided with a plurality of circuit breaker plugging positions which are arranged in sequence, each circuit breaker plugging position comprises a temporary fixing position, an anti-electric shock switch and a second connecting end connected with the wiring end of the miniature circuit breaker, the second connecting ends are located on the side face of the combiner box body, and the anti-electric shock switches are connected with knife switches in the combiner box body. According to the utility model, only the capacity of equipment in an area needs to be roughly calculated, the phase number and the current size of a switch do not need to be considered, and the design difficulty of a designer is greatly reduced; when the machine table moves, the switch can be pulled out and reused, so that waste is avoided, and the cost is saved; the switch can be plugged under the condition of uninterruptible power, an operation area is not electrified, and the safety is high; the switchboard does not need to reserve a switch, so that waste is avoided, and cost is saved; product reliability is high and installation is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of distribution boxes, and particularly relates to a busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside a distribution box. Background Art

[0002] During the preliminary design period of large semiconductor factories, the machine tools and equipment generally come from different countries and regions. The factory data of the machine tools and equipment is complex and the standards are not unified. The current magnitude and phase number of the switches often deviate from the data provided in the early stage. At the same time, it often involves the problem of relocating the machine tools and equipment during the operation period, increasing the difficulty of power design. On the one hand, in order to meet the later operation and use, power design engineers usually adopt a redundant design scheme, that is, a large number of switches that may be used are reserved, and the utilization rate of the reserved switches is extremely low. On the other hand, the switches of the distribution panel and the current-carrying copper busbar are fixedly installed. After the switches of the distribution panel are installed, there is no way to replace them. When the electrical equipment changes or moves, because the switches are fixedly installed, it may be necessary to replace the entire distribution panel. The above two aspects will both cause huge waste in industrial production and increase the construction cost. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside a distribution box to solve the deficiencies in the prior art.

[0004] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0005] Provide a busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside a distribution box. The miniature circuit breaker has a wiring terminal with a connection hole. Among them, it includes a backboard and a busbar box body. The busbar box body is a rectangular body. A knife switch is arranged inside the busbar box body. The back surface of the busbar box body is fixed on the backboard. A first connection end for connecting the main switch is led out from the top of the busbar box body. A plurality of breaker plugging positions are respectively arranged on the left and right sides of the busbar box body in sequence. The breaker plugging position includes a temporary fixing position, an electric shock prevention switch, and a second connection end for connecting the wiring terminal of the miniature circuit breaker. The second connection end is located on the side surface of the busbar box body. The electric shock prevention switch is connected to the knife switch inside the busbar box body.

[0006] As the busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside a distribution box, among them, the backboard is a rectangular plate. Fixed through grooves with openings facing forward are respectively arranged on the left and right sides of the front end surface of the backboard. The central axis of the fixed through groove is parallel to the plane where the side surface of the busbar box body is located. The fixed through groove forms the temporary fixing position.

[0007] The busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside the distribution box, wherein the groove wall of the fixed through groove is composed of vertical plates, and the top of the vertical plates is folded outward.

[0008] The busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside the distribution box, wherein the breaker plugging position includes three of the anti-electric shock switches and three of the second connection ends.

[0009] The busbar for a miniature circuit breaker that can be flexibly plugged and unplugged while being energized inside the distribution box, wherein the anti-electric shock switch includes a sliding seat and a sliding baffle. The sliding seats are respectively arranged at the left and right edges of the front end face of the busbar box body. The sliding baffle can slide left and right along the sliding seat. After the sliding baffle slides outwards, it blocks the connection holes of the wiring terminals of the miniature circuit breaker while closing the knife switch.

[0010] The beneficial effects of the technical solution of the present utility model are:

[0011] 1. Only the equipment capacity within the area needs to be estimated, without considering the phase number and current magnitude of the switch, greatly reducing the design difficulty for designers;

[0012] 2. When the machine tool moves, the switch can also be pulled out and reused, avoiding waste and saving costs;

[0013] 3. The switch can be plugged and unplugged without power interruption, and the operating area is not energized, with high safety;

[0014] 4. The switch does not need to be reserved on the distribution board, avoiding waste and saving costs;

[0015] 5. The product has high reliability and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To further illustrate the above objects, structural features and effects of the present utility model, the present utility model will be described in detail below with reference to the drawings.

[0017] Figure 1 、 Figure 2 is a perspective view of a preferred embodiment of the present utility model;

[0018] Figure 3 is Figure 1 a top view;

[0019] Figure 4 is Figure 2 a front view;

[0020] Figure 5 、 Figure 6 is a perspective view of installing a miniature circuit breaker for a preferred embodiment of the present utility model;

[0021] Figure 7 isFigure 5 Top view;

[0022] Figure 8 For Figure 6 Front view;

[0023] In the figure: 0, miniature circuit breaker; 1, backplane; 2, busbar box body; 3, first connection end; 4, electric shock prevention switch; 5, second connection end; 6, fixed through slot; 7, sliding seat; 8, sliding baffle. Specific embodiments

[0024] The terms "utility model" and "the present utility model" as used in this specification are intended to generically refer to all subject matters of this specification and any of the following patent claims. Statements containing these terms should not be construed as limiting the subject matter described herein or the meaning or scope of any of the following patent claims. Additionally, this specification does not attempt to describe or limit the subject matter covered by any specific component, paragraph, statement, or claim of this application. The subject matter should be understood with reference to the entire specification, all the drawings, and any of the following claims. The present utility model may have other embodiments and be practiced or implemented in other ways. Moreover, it should be understood that the wording and terms used herein are for illustrative purposes and should not be considered limiting.

[0025] Details of the present utility model will now be discussed with reference to the drawings of the present utility model, which are provided by way of example only. In the drawings, like features or components may be labeled with the same reference numerals.

[0026] The use of the terms "comprising", "having", and "including" and their variants herein means including the items listed hereinafter, their equivalents, and additional items. Although directions such as above, below, upward, downward, backward, bottom, top, front, and back may be referred to in the description of the drawings for convenience with reference to the drawings, these directions are not intended to be literally accepted or limit the present utility model in any form. Additionally, terms such as "first", "second", "third", etc. are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0027] Figures 1 to 8The busbar of the miniature circuit breaker 0 required for the electromechanical equipment that can be flexibly plugged and unplugged with electricity in the distribution box of the utility model is shown. The miniature circuit breaker 0 has a wiring terminal with a connection hole. In a preferred embodiment, the busbar includes a backboard 1 and a busbar box body 2. The busbar box body 2 is a rectangular body, and a knife switch is arranged inside the busbar box body 2. The back of the busbar box body 2 is fixed on the backboard 1. A first connection end 3 for connecting the main switch is led out from the top of the busbar box body 2, preferably three leading claws. A number of breaker plug-in positions are arranged in sequence on the left and right sides of the busbar box body 2 respectively. The breaker plug-in position includes a temporary fixing position, an electric shock prevention switch 4, and a second connection end 5 for connecting the wiring terminal of the miniature circuit breaker 0. The second connection end 5 is located on the side of the busbar box body 2, and the electric shock prevention switch 4 is connected to the knife switch inside the busbar box body 2.

[0028] The backboard 1 is a rectangular plate. Fixing through grooves 6 with openings facing forward are respectively arranged on the left and right sides of the front end face of the backboard 1 where the busbar box body 2 is located. The central axis of the fixing through groove 6 is parallel to the plane where the side of the busbar box body 2 is located, and the fixing through groove 6 forms a temporary fixing position.

[0029] Furthermore, the groove wall of the fixing through groove 6 is composed of vertical plates, and the top of the vertical plates is folded outward to increase the installation stability. It can be understood that the distance between the fixing through groove 6 and the busbar box body 2 and the width of the fixing through groove 6 itself are designed based on adapting to the size of the miniature circuit breaker 0.

[0030] Preferably, the breaker plug-in position includes three electric shock prevention switches 4 and three second connection ends 5, with a total of thirty electric shock prevention switches 4 and thirty second connection ends 5, fifteen on one side, that is, a total of ten breaker plug-in positions.

[0031] See Figure 5 、 Figure 6 and Figure 7 As shown in, the electric shock prevention switch 4 includes a sliding seat 7 and a sliding baffle 8. The sliding seats 7 are respectively arranged at the left and right edges of the front end face of the busbar box body 2. The sliding baffle 8 can slide left and right along the sliding seat 7. After the sliding baffle 8 slides outwards, while blocking the connection hole of the wiring terminal of the miniature circuit breaker 0, the knife switch is closed. It is easy to understand that the sliding baffle 8 is connected to the knife switch, and the fact that the knife switch is closed after the sliding baffle 8 slides belongs to the conventional technology in this field.

[0032] The miniature circuit breaker 0 is temporarily plugged and fixed on the fixed through slot 6, and the second connection end 5 is connected to the wiring terminal of the miniature circuit breaker 0. At this time, the miniature circuit breaker 0 is not energized. The sliding baffle 8 slides outwards to block the connection hole of the wiring terminal and a symbol "-" appears at the tail of the sliding baffle 8. Only then will the circuit be energized. In this way, it can be ensured that the operation of connecting the miniature circuit breaker 0 is not energized, having an anti-electric shock function. In other words, when the sliding baffle 8 slides and can block the connection hole of the miniature circuit breaker 0, the internal knife switch will close and the miniature circuit breaker 0 will be energized, so that the miniature circuit breaker 0 of the branch can be plugged and unplugged at any time when the main circuit breaker is energized without affecting other branch circuits. It is easy to understand that the symbol "-" is only used as a prompt mark, and other symbols can also be used for marking.

[0033] Only the main switch and the new type of busbar need to be installed in the distribution box. The required branch miniature circuit breakers can be installed at the construction site according to actual needs. The switches within the power supply radius of the distribution box can draw power from this distribution box. As long as the total capacity of the branch miniature circuit breakers does not exceed that of the main switch, they can be inserted at any time, which can greatly reduce the difficulty of power planning in the initial design stage. When the machine equipment moves, the upstream miniature circuit breaker can also be pulled out and used in the distribution box at the new position, thus avoiding material waste and saving construction costs.

[0034] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A busbar capable of flexibly plugging and unplugging a miniature circuit breaker in a distribution box, wherein the miniature circuit breaker has a terminal with a connection hole, characterized in that: It includes a back plate and a junction box, the junction box is a rectangular body, a knife switch is arranged in the junction box, the back of the junction box is fixed to the back plate, the top of the junction box leads to a first connection end connected to the main switch, and the left and right sides of the junction box are respectively provided with a plurality of circuit breaker plug-in positions arranged in sequence, the circuit breaker plug-in position includes a temporary fixing position, an anti-electric shock switch and a second connection end connected to the wiring terminal of the miniature circuit breaker, the second connection end is located on the side of the junction box, and the anti-electric shock switch is connected to the knife switch in the junction box.

2. The busbar capable of flexibly plugging and unplugging a miniature circuit breaker in a distribution box as claimed in claim 1 is characterized in that: The back plate is a rectangular plate, and the front end surface of the back plate is located on the left and right sides of the junction box body and is respectively provided with fixed grooves opening forward, the central axis of the fixed grooves is parallel to the plane where the side surfaces of the junction box body are located, and the fixed grooves form the temporary fixing positions.

3. The busbar capable of flexibly plugging and unplugging a miniature circuit breaker in a distribution box as claimed in claim 2 is characterized in that: The groove wall of the fixed through groove is composed of a vertical plate, and the top of the vertical plate is folded outward.

4. The busbar capable of flexibly plugging and unplugging a miniature circuit breaker in a distribution box as claimed in claim 1 is characterized in that: The circuit breaker plug-in position includes three anti-electric shock switches and three second connection ends.

5. The busbar capable of flexibly plugging and unplugging a miniature circuit breaker in a distribution box as claimed in claim 1 or 4, characterized in that: The anti-electric shock switch includes a sliding seat and a sliding baffle. The sliding seat is respectively arranged at the left and right edges of the front end surface of the junction box body. The sliding baffle can slide left and right along the sliding seat. After the sliding baffle slides outward, it blocks the connection hole of the wiring terminal of the miniature circuit breaker and closes the knife switch at the same time.

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