Multifunctional high-voltage cabinet

Abstract

The utility model discloses a multifunctional high-voltage cabinet, which comprises a box body and a load switch arranged in the box body, the back part of the load switch is provided with an inverted U-shaped fixing plate, and the inverted U-shaped fixing plate is in butt joint with the load switch beam in an inserted manner. The lower wiring end of the load switch is connected with the high-voltage cable through a copper bar, and the upper wiring end is connected with the current transformer through a copper bar; the top of the load switch is provided with a plurality of groups of double-row wiring boards, and the outer sides of the double-row wiring boards are provided Through holes are formed in the upper and lower ends of the double-row wiring board and the pressing plate; the through holes at the lower ends of the multiple groups of double-row wiring boards and the pressing plates are rotationally fixed through a group of long shafts, and the through holes at the upper ends of each group of double-row wiring boards and the pressing plates are rotationally fixed through pin shafts; the pin shaft penetrates through the double-row wiring board and the pressing plate and then is fixed through a nut, and a spring is arranged between the nut and the pressing plate. According to the utility model, the voltage can be monitored in real time, the load switch and the copper bar are convenient and fast to install, and the assembly efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of transformer substations, in particular to a multifunctional high-voltage cabinet. Background Art

[0002] High-voltage cabinet is an electrical equipment mainly composed of circuit breakers; it means that the manufacturer assembles relevant high and low voltage electrical appliances, busbars, current-carrying conductors, insulators, etc. in a closed or open metal cabinet according to the requirements of the primary electrical wiring diagram, as a device for receiving and distributing electrical energy in the power system.

[0003] At present, traditional high-voltage cabinets are installed by bolts when the load switch is installed. For small load switches, one hand supports the load switch and the other hand installs the bolts. For large load switches, two people are required to cooperate to install the bolts. The installation is more laborious and inefficient. At the same time, when connecting the copper busbar, it is easy for the bolt rotation force to be large, resulting in damage to the terminal board, which further reduces the assembly efficiency. Utility Model Content

[0004] The utility model aims to provide a multifunctional high-voltage cabinet which is convenient to install and has the function of automatically locking copper bars.

[0005] The purpose of the utility model is achieved as follows: a multifunctional high-voltage cabinet, comprising a box body, and a load switch placed in the box body;

[0006] A load switch beam is provided in the box body, a load switch is provided on the load switch beam, an inverted U-shaped fixing plate is provided at the back of the load switch, and the inverted U-shaped fixing plate is plug-in-butted with the load switch beam;

[0007] The lower terminal of the load switch is connected to the high-voltage cable through a copper busbar, and the upper terminal is connected to the current transformer through a copper busbar. The output end of the current transformer extends to the outside of the box through the copper busbar; multiple groups of double-row terminal blocks are arranged on the top of the load switch, and a pressure plate is arranged on the outside of the double-row terminal blocks; through holes are arranged at the upper and lower ends of the double-row terminal blocks and the pressure plate; the through holes located at the lower ends of the multiple groups of double-row terminal blocks and the pressure plates are rotationally fixed by a group of long shafts, and the through holes located at the upper ends of each group of double-row terminal blocks and the pressure plate are rotationally fixed by a pin shaft; the pin shaft passes through the double-row terminal blocks and the pressure plate and is fixed by a nut, and a spring is arranged between the nut and the pressure plate.

[0008] Preferably, voltage sensors are provided between the lower terminal of the load switch and the high-voltage cable, between the upper terminal and the current transformer, and on the copper busbar extending from the current transformer to the outside of the box.

[0009] Preferably, rounded rectangular holes are provided on both side panels of the inverted U-shaped fixing plate, and fixing holes are provided on the load switch beam. The rounded rectangular holes are connected to the fixing holes of the load switch beam through bolts; and the ends of the bolts extend into the rounded rectangular holes on the inner side panels.

[0010] Preferably, a gasket is provided between the inverted U-shaped fixing plate and the load switch beam.

[0011] Preferably, fixed side plates are provided on both sides of the load switch beam and are connected to the box frame by bolts.

[0012] Compared with the prior art, the utility model is beneficial in that:

[0013] 1. An inverted U-shaped fixing plate is set behind the load switch to connect with the load switch beam. When installing the load switch, you only need to hang the load switch on the load switch beam, without having to hold the load switch with one hand and tighten the nut with the other hand, which greatly improves the installation efficiency; at the same time, the inverted U-shaped fixing plate can provide a supporting force, forming a double fixing match with the nut, which greatly improves the stability of the load switch after installation;

[0014] 2. An elastic clamping structure is set on the double-row terminal board of the load switch. After docking with the copper busbar, there is no need to connect it with traditional bolts, so as to avoid the double-row terminal board being compressed and deformed when the traditional bolts are compressed, resulting in damage;

[0015] 3. Setting voltage sensors on multi-channel copper busbars can effectively measure the voltage of each branch for easy monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the load switch structure on the front side of the utility model.

[0018] Figure 3 for Figure 1 A magnified view of the structure in the middle.

[0019] Figure 4 for Figure 2 Enlarged view of the structure at point B in the middle.

[0020] Figure 5 It is a front structural schematic diagram of the inverted U-shaped fixing plate of the utility model.

[0021] Among them, 1 box body, 2 load switch, 3 load switch beam, 301 fixed side plate, 4 inverted U-shaped fixed plate, 401 rounded rectangular hole, 5 copper bus, 6 high-voltage cable, 7 current transformer, 8 double-row terminal block, 9 pressure plate, 10 long shaft, 11 pin shaft, 12 nut, 13 spring, 14 voltage sensor, 15 gasket. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-4 As shown, a multifunctional high-voltage cabinet comprises a box body 1 and a load switch 2 placed in the box body;

[0026] A load switch beam 3 is provided in the box body 1, a load switch 2 is provided on the load switch beam 3, an inverted U-shaped fixing plate 4 is provided on the back of the load switch 3, and the inverted U-shaped fixing plate 4 is plug-in-butted with the load switch beam 3;

[0027] The lower terminal of the load switch 2 is connected to the high-voltage cable 6 through the copper busbar 5, and the upper terminal is connected to the current transformer 7 through the copper busbar 5. The output end of the current transformer 7 extends to the outside of the box 1 through the copper busbar; multiple groups of double-row terminal blocks 8 are provided on the top of the load switch 2, and a pressure plate 9 is provided on the outside of the double-row terminal blocks 8; through holes are provided at the upper and lower ends of the double-row terminal blocks 8 and the pressure plate 9; the through holes located at the lower ends of the multiple groups of double-row terminal blocks 8 and the pressure plate 9 are rotatably fixed by a group of long shafts 10, and the through holes located at the upper ends of each group of double-row terminal blocks 8 and the pressure plate 9 are rotatably fixed by a pin shaft 11; the pin shaft 11 passes through the double-row terminal blocks 8 and the pressure plate 9 and is fixed by a nut 12, and a spring 13 is provided between the nut 12 and the pressure plate 9.

[0028] like Figure 1 As shown, voltage sensors 14 are provided between the lower terminal of the load switch 2 and the high-voltage cable 6, between the upper terminal and the current transformer 7, and on the copper busbar extending from the current transformer 7 to the outside of the box; the voltage sensor can monitor the voltage value of each copper busbar in real time, and can provide data to the manager to make the next judgment.

[0029] like Figure 3 , 5 As shown, rounded rectangular holes 401 are provided on the side panels of the inverted U-shaped fixing plate 4, and fixing holes are provided on the load switch beam 3. There are multiple groups of fixing holes, and the rounded rectangular holes 401 are connected to the fixing holes of the load switch beam through bolts; the ends of the bolts are inserted into the rounded rectangular holes on the inner side panels; the use of rounded rectangular holes can avoid the calibration problem between the two fixing holes, facilitate the subsequent installation of bolts, and there is no need to design the spacing between the respective fixing holes in advance. At the same time, the bolts are inserted into the rounded rectangular holes on the other side to limit the bolts and avoid shaking.

[0030] like Figure 3 As shown, a gasket 15 is provided between the inverted U-shaped fixing plate 4 and the load switch beam 3, and the gasket can increase the friction between the bolt and the inverted U-shaped fixing plate, thereby improving the stability of the bolt after installation.

[0031] like Figure 3 As shown, fixed side plates 301 are provided on both sides of the load switch beam 3 and are connected to the box frame by bolts to ensure the stability of the load switch beam after installation and prevent the load switch beam from falling.

[0032] The working principle of the utility model is described as follows: an inverted U-shaped fixing plate is arranged behind the load switch to connect with the load switch beam. When installing the load switch, it is only necessary to hang the load switch on the load switch beam; an elastic clamping structure is arranged on the double-row terminal board of the load switch to facilitate the clamping of the copper busbar and subsequent installation.

[0033] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A multifunctional high-voltage cabinet, It is characterized in that It includes a box body and a load switch placed in the box body; A load switch beam is provided in the box body, a load switch is provided on the load switch beam, an inverted U-shaped fixing plate is provided at the back of the load switch, and the inverted U-shaped fixing plate is plug-in-butted with the load switch beam; The lower terminal of the load switch is connected to the high-voltage cable through a copper busbar, and the upper terminal is connected to the current transformer through a copper busbar. The output end of the current transformer extends to the outside of the box through the copper busbar; multiple groups of double-row terminal blocks are arranged on the top of the load switch, and a pressure plate is arranged on the outside of the double-row terminal blocks; through holes are arranged at the upper and lower ends of the double-row terminal blocks and the pressure plate; the through holes located at the lower ends of the multiple groups of double-row terminal blocks and the pressure plates are rotationally fixed by a group of long shafts, and the through holes located at the upper ends of each group of double-row terminal blocks and the pressure plate are rotationally fixed by a pin shaft; the pin shaft passes through the double-row terminal blocks and the pressure plate and is fixed by a nut, and a spring is arranged between the nut and the pressure plate.

2. A multifunctional high-voltage cabinet according to claim 1, It is characterized in that Voltage sensors are arranged between the lower connection terminal of the load switch and the high-voltage cable, between the upper connection terminal and the current transformer, and on the copper busbar extending from the current transformer to the outside of the box.

3. A multifunctional high-voltage cabinet according to claim 1, It is characterized in that Rounded rectangular holes are provided on the side plates on both sides of the inverted U-shaped fixing plate, and fixing holes are provided on the load switch beam. The rounded rectangular holes are connected to the fixing holes of the load switch beam through bolts; the ends of the bolts extend into the rounded rectangular holes on the inner side plates.

4. A multifunctional high-voltage cabinet according to claim 1, It is characterized in that A gasket is provided between the inverted U-shaped fixing plate and the load switch beam.

5. A multifunctional high-voltage cabinet according to claim 1, It is characterized in that Fixed side plates are provided on both sides of the load switch beam and are connected to the box frame through bolts.

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