Side-opening electric disconnect switch

Abstract

This application provides a side-opening electrically operated disconnect switch, comprising: a mounting plate installed in a disconnect switch cabinet; two disconnect switch bodies, one of which is disposed on the upper surface of the mounting plate, and the other of which is disposed directly above the first disconnect switch body and connected by an insulating block; and an electrically operated device disposed below the mounting plate relative to the two disconnect switch bodies, with its drive end connected to the transmission end of the two disconnect switch bodies via a connector and used to control the opening or closing of the two disconnect switch bodies. This application can quickly disconnect the circuit in case of a fault, while avoiding the expansion of the fault due to mechanical jamming. Thus, while ensuring electrical isolation, it simplifies the mechanical structure, improves the reliability and service life of the disconnect switch cabinet, and provides an important guarantee for the safe operation of the subway power supply system.

Description

Technical Field

[0001] This application relates to the field of disconnector technology, and more particularly to a side-opening electric disconnector. Background Technology

[0002] With the rapid development of urban rail transit systems (especially subways), their high density and high capacity characteristics place higher demands on the efficiency and energy consumption of power supply systems. Currently, most subway systems use resistive energy dissipation to absorb the electrical energy generated during train braking. This method not only results in a huge waste of electrical energy but also increases the burden on refrigeration equipment due to the heat generated by the resistance, violating the national energy conservation and emission reduction goals. Therefore, effectively reducing the energy consumption of traction power supply has become one of the key measures to reduce the overall energy consumption of subways.

[0003] However, in recent years, domestic universities and enterprises have conducted extensive research and exploration on subway energy feedback devices and proposed a variety of solutions, such as "supercapacitor energy storage," "flywheel energy storage," and "inverter feedback." Among these solutions, "inverter feedback" has become the preferred solution for many urban rail transit systems due to its significant advantages, including mature and stable technology, high energy conversion efficiency, and low maintenance. Specifically, by inverting the electrical energy generated during train braking back to the power grid, this energy can be effectively recovered and utilized, and the overall energy consumption of the system can be significantly reduced, thereby achieving the goal of energy conservation and emission reduction. The recovery process of regenerative braking energy requires efficient and reliable equipment support, such as feeder cabinets, grounding cabinets, and other disconnecting switch cabinets. These disconnecting switch cabinets have requirements for power isolation, safety assurance, and switching operations, which are usually achieved through disconnecting switches. Since feeder cabinets, grounding cabinets, and other disconnecting switch cabinets are installed on the line, their installation space is limited. Therefore, the size of these feeder cabinets, grounding cabinets, and other disconnecting switch cabinets is small, and the size of the disconnecting switches installed inside them is also small.

[0004] Traditional disconnect switches, due to their complex structural design, high insulation requirements, manufacturing limitations, and diverse functional needs, suffer from drawbacks such as large size and weight, making them unsuitable for use in feeder cabinets, grounding cabinets, and other disconnect switchgear. Furthermore, subway power supply systems require frequent switching of power supply modes, such as achieving large-scale bilateral power supply or changing operating modes in case of faults. Traditional disconnect switches cannot meet the requirements of high-frequency operation, high-load energy feedback, and stable operation in complex environments. Therefore, to meet these needs, this application proposes a side-opening electrically operated disconnect switch. Utility Model Content

[0005] This application provides a side-opening electric disconnect switch to solve the technical problems described in the background art.

[0006] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0007] This application provides a side-opening electrically disconnecting switch, comprising:

[0008] Mounting plate, which is installed in the disconnector switch cabinet;

[0009] Two disconnect switch bodies, one of which is disposed on the upper surface of the mounting plate, and the other disconnect switch body is disposed directly above the one of the disconnect switch bodies and the two are connected by an insulating block;

[0010] An electric operating device is disposed below the mounting plate relative to the two disconnector switch bodies, and its drive end is connected to the transmission end of the two disconnector switch bodies via a connector and is used to control the opening or closing of the two disconnector switch bodies.

[0011] Optionally, both disconnector switch bodies include two insulators, two outgoing line units, and a double-bridge disconnector unit;

[0012] One end of each of the two insulators is spaced apart on one side wall of the mounting plate. The two outgoing line units are respectively located at the ends of the two insulators away from the mounting plate. The double-bridge isolating knife unit is movably mounted on one of the outgoing line units and its transmission end is connected to the drive end of the electric operating device. The electric operating device is used to control the opening or closing of the double-bridge isolating knife unit and the other outgoing line unit.

[0013] Optionally, both of the aforementioned cable outlet units include two cable outlet plates and a pad;

[0014] One of the outgoing plates is located at the end of the corresponding insulator away from the mounting plate, and the other outgoing plate is located directly above the one outgoing plate and the two are connected by the pad block. One side of the double-bridge isolation knife unit is movably connected to one side of the two outgoing plates.

[0015] Optionally, the dual-bridge isolation knife unit is fixedly connected to the end of the connector away from the electric operating device and includes a first isolation knife, two second isolation knives and a third isolation knife arranged sequentially from top to bottom;

[0016] A spring plate is provided on the side of the first isolation blade away from the second isolation blade, between the two second isolation blades, and on the side of the third isolation blade away from the second isolation blade. The side of the first isolation blade close to the second isolation blade and the side of the third isolation blade close to the second isolation blade are both at a preset distance from their corresponding second isolation blades.

[0017] One side of each of the two outlet plates extends into and is movably connected between the first isolation blade and one of the second isolation blades, and between the other second isolation blade and the third isolation blade.

[0018] Optionally, the first isolation blade, the two second isolation blades, and the third isolation blade have the same structure, and heat dissipation grooves are provided on both sides of the first isolation blade, the two second isolation blades, and the third isolation blade.

[0019] Optionally, the first isolation blade, the two second isolation blades, the third isolation blade, and the two outgoing plates are all made of T2 copper material, and their outer surfaces are all provided with a conductive layer.

[0020] Optionally, the connector includes a drive shaft and two linkage units;

[0021] One end of the drive shaft passes through the mounting plate and is connected to the drive end of the electric operating device. The two connecting rod units are respectively sleeved on the drive shaft and correspond one-to-one with the two double-bridge isolation knife units.

[0022] Both of the aforementioned linkage units include a first linkage and two second linkages;

[0023] The first connecting rod is sleeved on the drive shaft. One end of each of the two second connecting rods is movably connected to the end of the first connecting rod away from the drive shaft. The other ends of the two second connecting rods extend into and are movably connected between the first isolation knife and one of the second isolation knives, and between the other second isolation knife and the third isolation knife.

[0024] Optionally, the side-opening electric disconnect switch may also include an auxiliary switch;

[0025] The electric operating device is provided with a support plate, the auxiliary switch is provided on the support plate and its input end passes through the support plate and is connected to an auxiliary connecting rod, and the end of the auxiliary connecting rod away from the input end of the auxiliary switch is connected to the transmission shaft.

[0026] Optionally, another insulator may be provided on the top surface of the other disconnector body.

[0027] Optionally, the upper surface of the insulating block is connected to the bottom end of another disconnecting switch body via a reinforcing plate;

[0028] The reinforcing plate is approximately triangular in shape.

[0029] The side-opening electric disconnect switch provided in this application, by setting up a mounting plate, installs two disconnect switch bodies and an electric operating device on opposite side walls of the mounting plate, respectively. The electric operating device controls the opening and closing of the two disconnect switches. The above-mentioned electric control of the two disconnect switch bodies improves the flexibility and reliability of the opening or closing of the disconnect switch bodies, thereby improving the operating efficiency of the side-opening electric disconnect switch and enabling it to meet the frequent power supply mode switching requirements of the subway power supply system. In addition, the vertical arrangement of the two disconnect switch bodies connected by an insulating block, and the sequential arrangement of the mounting plate and electric operating device from top to bottom, saves installation space in the disconnect switch cabinet. Since the disconnect switch cabinet has functions such as power grid filtering and system fault protection, the vertical arrangement of the two disconnect switch bodies ensures rapid circuit disconnection in the event of a fault, while avoiding the expansion of faults due to mechanical jamming. Thus, while ensuring electrical isolation, it simplifies the mechanical structure, improves the reliability and service life of the disconnect switch cabinet, and provides an important guarantee for the safe operation of the subway power supply system. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a side-opening electric disconnect switch provided in an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure of a side-opening electrically disconnecting switch provided in another embodiment of this application;

[0033] Figure 3 A top view of a side-opening electrically disconnecting switch provided in an embodiment of this application;

[0034] Figure 4 Provided for an embodiment of this application Figure 1 A partially enlarged schematic diagram of a center-opening electric disconnector;

[0035] Figure 5 This is a schematic diagram of the structure of a dual-bridge isolation knife unit provided in an embodiment of this application.

[0036] In the diagram: 100, mounting plate; 200, disconnector switch body; 201, insulator; 202, outgoing line unit; 2021, outgoing line plate; 2022, pad; 203, double-bridge disconnector unit; 2031, first disconnector; 2032, second disconnector; 2033, third disconnector; 2034, spring plate; 300, insulating block; 400, electric operating device; 401, bearing plate; 500, connector; 501, drive shaft; 502, linkage unit; 5021, first linkage; 5022, second linkage; 600, heat dissipation slot; 700, auxiliary switch; 701, auxiliary linkage; 800, reinforcing plate. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0038] refer to Figures 1 to 5 This application provides a side-opening electrically disconnecting switch, comprising:

[0039] Mounting plate 100 is installed in the disconnector switchgear. The disconnector switchgear is primarily used to isolate circuits during the recovery of energy generated during subway operation via "inverter feedback," thereby ensuring the safe operation and maintenance of all equipment involved in the "inverter feedback" process. For example, the disconnector switchgear can be an ABB OT160ET3 disconnector switchgear, an SBE type DC disconnector switchgear, etc., and the specific type can be selected according to the actual situation. This application does not further limit the specific model of the disconnector switchgear.

[0040] Two disconnector switch bodies 200 are provided. One disconnector switch body 200 is disposed on the upper surface of the mounting plate 100, and the other disconnector switch body 200 is disposed directly above the first disconnector switch body 200. The two disconnector switch bodies 200 are connected by an insulating block 300. The current input terminals of the two disconnector switch bodies 200 are respectively connected to the current output terminals of the DC traction network, and the current output terminals of the two disconnector switch bodies 200 are respectively connected to the current input terminals of the power grid. The insulating block 300 effectively isolates the two disconnector switch bodies 200 to prevent current leakage or short circuit. The insulating block 300 can be made of materials such as ceramic, glass, and polymer composite materials. The specific design can be determined according to actual needs, and this application does not impose any specific limitations on it.

[0041] The electric operating device 400 is positioned below the mounting plate 100 relative to the two disconnector switch bodies 200. (The electric operating device 400 can be positioned below the mounting plate via a connecting plate that is fixedly connected to the lower surface of the mounting plate. The connecting plate is fixedly connected to the electric operating device. See [reference needed] for details.) Figure 1 and Figure 2 The drive end of the electric operating device 400 is connected to the transmission end of the two disconnector switch bodies 200 via a connector and is used to control the opening or closing of the two disconnector switch bodies 200. The arrangement of the two disconnector switch bodies 200 ensures rapid circuit disconnection in case of a fault, while avoiding the expansion of faults due to mechanical jamming. This simplifies the mechanical structure while ensuring electrical isolation, improving the reliability and service life of the disconnector switch cabinet, and thus providing important protection for the safe operation of the subway power supply system. The method of controlling the opening and closing of the two disconnector switch bodies 200 through the electric operating device 400 improves the flexibility and reliability of the opening and closing of the disconnector switch bodies 200, thereby improving the operating efficiency of the side-opening electric disconnector and enabling it to meet the frequent power supply mode switching requirements of the subway power supply system. Furthermore, the arrangement of the two disconnector switch bodies 200, the mounting plate 100, and the electric operating device 400 from top to bottom saves the overall volume of the side-opening electric disconnector, reducing the space occupied during installation and making it easier to install, thereby improving installation efficiency.

[0042] Furthermore, the electric operating device 400 can be a UM10 mechanism (specifically, the UM10 mechanism is an electric operating mechanism adopted by the applicant, which is assembled from a motor and a reducer. Specifically, the output shaft of the motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the input end of the disconnecting switch body. After being energized, the motor drives the reducer to run, and the reducer drives the disconnecting switch body to complete the opening or closing operation). The specific configuration can be tailored to actual needs, and this application does not impose any specific limitations on it. The electric operating device 400 is equipped with a friction clutch, which is installed at the connection between the motor and the reducer (not shown in the figure). The purpose is that if jamming occurs during the opening or closing process of the disconnecting switch body 200, the friction clutch will automatically slip, allowing the motor to idle and preventing damage caused by motor stalling.

[0043] The side-opening electric disconnect switch provided in this application is first installed in a disconnect switch cabinet during actual use. The disconnect switch cabinet is then installed in substations, traction substations, along the contact network (such as tunnel walls, viaduct pillars), track sections, and negative terminal cabinets. The specific installation location of the disconnect switch cabinet needs to be determined based on actual needs and site conditions; this application does not impose specific limitations on it. The current input terminals of the two disconnect switch bodies 200 are connected to the DC traction network via DC contactors, while the current output terminals of the disconnect switch bodies 200 are connected to the power grid via inverters. Specifically, during regenerative braking of the train, the two disconnect switch bodies 200 are closed via an electric operating device 400, so that the electrical energy generated during the train's (e.g., subway) braking process is sequentially fed back to the power grid via the DC traction network and the inverter of the disconnect switch bodies. This not only effectively recovers and utilizes this energy but also significantly reduces the overall energy consumption of the system, achieving the goal of energy conservation and emission reduction. During train maintenance or repair, the two disconnector switches 200 are opened via an electric operating device 400, thereby isolating the DC traction network, the disconnector switches 200, and other equipment from the power grid, ensuring the safety of the maintenance or repair process. Therefore, this application improves the operational safety of the subway power supply system.

[0044] In some embodiments, reference Figure 4 The two disconnector switch bodies 200 in this application each include two insulators 201, two outgoing line units 202, and a double-bridge isolating knife unit 203. Specifically, one end of each of the two insulators 201 is spaced apart and disposed on one side wall of the mounting plate 100. The two outgoing line units 202 are respectively disposed at the ends of the two insulators 201 away from the mounting plate 100. The double-bridge isolating knife unit 300 is movably disposed on one of the outgoing line units 202, and its transmission end is connected to the drive end of the electric operating device 400. The electric operating device 400 is used to control the opening or closing of the double-bridge isolating knife unit 203 and the other outgoing line unit 202. The insulators 201 can be fixedly connected to the mounting plate 100 and the outgoing line unit 202 by crimping technology, or by other possible methods. The specific method can be set according to actual needs, and this application does not impose any specific limitations on it.

[0045] In the above embodiment, by activating the electric operating device 400, the electric operating device 400 drives an outgoing unit 202, which is movably connected to the double-bridge isolation knife unit 203 via the connector 500, to rotate in the horizontal plane (see reference). Figure 3 This allows one outgoing unit 202 to contact or separate from another outgoing unit 202, thereby enabling the closing or opening of the double-bridge isolating knife unit 203 and ensuring the safe operation of the subway power supply system.

[0046] In some embodiments, reference Figure 4 In this application, each of the two outgoing line units 202 includes two outgoing line plates 2021 and a pad 2022. Specifically, one outgoing line plate 2021 is located at the end of its corresponding insulator 201 away from the mounting plate 100, and the other outgoing line plate 2021 is located directly above the one outgoing line plate 2021 and the two are connected by the pad 2022. One side of the double-bridge isolation knife unit 203 is movably connected to one side of the two outgoing line plates 2021.

[0047] In the above embodiment, both outgoing plates 2021 are fixedly connected to the opposite sides of the pad 2022. The two outgoing plates 2021 and the pad 2022 are set to ensure that the outgoing unit 202 can stably fix the insulator 201. The pad 2022 between the two outgoing plates 2021 ensures the stability of the connection between the two outgoing plates 2021, thereby improving the stability of the entire side-opening electric disconnect switch.

[0048] In some embodiments, reference Figure 4 and Figure 5 In this application, the double-bridge isolation knife unit 203 is fixedly connected to the end of the connector 500 away from the electric operating device 400, and includes a first isolation knife 2031, two second isolation knives 2032, and a third isolation knife 2033 arranged sequentially from top to bottom. Specifically, a spring plate 2034 is provided on the side of the first isolation knife 2031 away from the second isolation knife 2032, between the two second isolation knives 2032, and on the side of the third isolation knife 2033 away from the second isolation knife 2032. The sides of the first isolation knife 2031 and the third isolation knife 2033 that are close to the second isolation knife 2032 are all at a distance from their corresponding second isolation knives. 2032 Preset distance; wherein, the spring plate 2034 is fixed together with the first isolation blade 2031, the two second isolation blades 2032 and the spring plate 2034 between them, as well as the third isolation blade 2033 and the spring plate 2034 by bolts, and the preset distance can be set according to actual needs, and this application does not specifically limit it. The double-bridge isolation blade unit 203 formed by the spring plate 2034, the first isolation blade 2031, the two second isolation blades 2032 and the spring plate 2034 between them, as well as the third isolation blade 2033 and the spring plate 2034 makes the current flow more uniform and improves the stability of the kinetic energy "inverter feedback" process.

[0049] One side of each of the two outlet plates 2021 extends into and is movably connected between the first isolation blade 2031 and one of the second isolation blades 2032 and the third isolation blade 2033, respectively. This makes the connection between the two outlet plates 2021 and the double-bridge isolation blade unit 203 tighter and improves the stability of the connection.

[0050] In some embodiments, reference Figure 4 and Figure 5 The first isolation blade 2031, the two second isolation blades 2032, and the third isolation blade 2033 in this application have the same structure, and heat dissipation slots 600 are provided on both sides of the first isolation blade 2031, the two second isolation blades 2032, and the third isolation blade 2033. Each side of the first isolation blade 2031, the two second isolation blades 2032, and the third isolation blade 2033 has multiple heat dissipation slots 600, and the number of heat dissipation slots 600 on each side can be four. The specific number can be set according to the actual dimensions of the first isolation blade 2031, the two second isolation blades 2032, and the third isolation blade 2033, and this application does not impose a specific limitation on this. Furthermore, the size of each heat dissipation slot 600 can be set according to actual needs (for example, the width of the opening of each heat dissipation slot 600 can be 1.3 mm), and this application does not impose a specific limitation on this.

[0051] In the above embodiments, the heat dissipation channel 600 reduces the weight of the first isolation blade 2031, the two second isolation blades 2032, and the third isolation blade 2033, thereby reducing the overall weight of the side-opening disconnect switch and facilitating its installation and other operations. Furthermore, the heat dissipation channel 600 effectively dissipates heat generated when current flows through the first isolation blade 2031, the two second isolation blades 2032, and the third isolation blade 2033, ensuring the safety and stability of the side-opening disconnect switch operation.

[0052] In some embodiments, the first isolation blade 2031, the two second isolation blades 2032, the third isolation blade 2033, and the two outgoing plates 2021 in this application are all made of T2 copper material, and a conductive layer is provided on their outer surface. The thickness of the conductive layer can be set according to actual conditions, and this application does not specifically limit it. The conductive layer is a silver-plated layer, utilizing the excellent conductivity of silver.

[0053] In the above embodiments, the choice of conductive material directly affects the resistance of the main circuit; excessive resistance will lead to energy loss and decreased efficiency. This application utilizes the excellent electrical conductivity, thermal conductivity, and corrosion resistance of T2 copper to improve the conductivity of the first isolation blade 2031, the two second isolation blades 2032, the third isolation blade 2033, and the two outgoing plates 2021 made of T2 copper, ensuring the current carrying efficiency of the disconnector switch body 200 during use. Furthermore, the conductive layer further enhances the conductivity of the first isolation blade 2031, the two second isolation blades 2032, the third isolation blade 2033, and the two outgoing plates 2021, reducing the resistance of the main circuit and thus improving the overload capacity of the disconnector switch body 200 and the stability of the subway power supply system.

[0054] In some embodiments, reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The connector 500 in this application includes a drive shaft 501 and two linkage units 502. Specifically, one end of the drive shaft 501 passes through the mounting plate 100 and is connected to the drive end of the electric operating device 400 (wherein, the shaft body of the drive shaft 501 is rotatably connected to the mounting plate 100). The two linkage units 502 are respectively sleeved on the drive shaft 501 and correspond one-to-one with the two double-bridge isolation knife units 203. During the process of the drive shaft 501 rotating (clockwise or counterclockwise) through the electric operating device 400, the two double-bridge isolation knife units 203 fixedly sleeved on the drive shaft 501 rotate synchronously with the drive shaft 501.

[0055] Each of the two linkage units 502 includes a first linkage 5021 and two second linkages 5022. Specifically, the first linkage 5021 is sleeved on the drive shaft 501, and one end of each of the two second linkages 5022 is movably connected to the end of the first linkage 5021 away from the drive shaft 501. The other ends of the two second linkages 5022 extend into and are movably connected to the first isolation blade 2031 and one of the second isolation blades 2032 and the other second isolation blade 2032 and the third isolation blade 2033, respectively. The first connecting rod 5021 is fixedly sleeved on the transmission shaft 501. That is, during the rotation of the transmission shaft 501 controlled by the electric operating device 400, the transmission shaft 501 drives the first connecting rod 5021 to rotate synchronously. The first connecting rod 5021 is movably connected to the second connecting rod 5022. The other ends of the two second connecting rods 5022 respectively extend into and are movably connected between the first isolation blade 2031 and one of the second isolation blades 2032, and between the other second isolation blade 2032 and the third isolation blade 2033. One side of the line plate 2021 extends into and is movably connected between the first isolating blade 2031 and one of the second isolating blades 2032, and between the other second isolating blade 2032 and the third isolating blade 2033, thereby realizing the opening and closing of the double-bridge isolating blade unit 203 and the outgoing line unit 202. The above process improves the flexibility and reliability of the opening or closing of the isolating switch body 200, thereby improving the operating efficiency of the side-opening electric isolating switch and enabling it to meet the frequent power supply mode switching requirements of the subway power supply system. In addition, the opening or closing of the isolating switch body 200 in this application can also be achieved manually. Electric operation is suitable for daily automated operation, while manual operation provides a backup plan in case of electric failure or other emergency, increasing the flexibility and reliability of the system. Specifically, manual operation can be performed by the operator holding a wrench or other means to rotate the drive shaft in case of electric failure or other emergency, thereby opening or closing the disconnect switch body 200. The above manual operation can also be achieved in other possible ways, which can be set according to the actual situation, and this application does not make specific limitations on them.

[0056] In some embodiments, reference Figure 1 and Figure 2 The side-opening electric disconnect switch in this application also includes an auxiliary switch 700. Specifically, a support plate 401 is provided on the electric operating device 400, and the auxiliary switch 700 is mounted on the support plate 401 with its input end passing through the support plate 401 and connected to an auxiliary connecting rod 701. The end of the auxiliary connecting rod 701 away from the input end of the auxiliary switch 700 is connected to the drive shaft 501. The specifications and model of the auxiliary switch 700 can be set according to actual needs, and this application does not impose specific limitations on it.

[0057] In the above embodiments, when the drive shaft 501 rotates, the auxiliary connecting rod 701, which is fixedly connected to the input ends of the drive shaft 501 and the auxiliary switch 700, rotates synchronously with the drive shaft 501, thereby triggering the auxiliary switch 700 to accurately feedback the open or closed position of the isolating switch body 200. It should be noted that the specific principle of the auxiliary switch 700 feedback of the open or closed position of the isolating switch body 200 can be found in existing technology, and will not be specifically described here.

[0058] In some embodiments, reference Figure 1 and Figure 2 In addition, an insulator 201 is provided on the top surface of another disconnecting switch body 200 in this application. The insulator 201 plays a role in reinforcing the disconnecting switch body 200 that is fixedly connected to it, thereby improving the stability of the entire disconnecting switch body 200.

[0059] In some embodiments, reference Figure 1 and Figure 2 In this application, the upper surface of the insulating block 300 is connected to the bottom end of another disconnecting switch body 200 via a reinforcing plate 800. Specifically, the lower surface of the reinforcing plate 800 is fixedly connected to the upper surface of the insulating block 300, while the upper surface of the reinforcing plate 800 is fixedly connected to the bottom end of another disconnecting switch body 200. Furthermore, the reinforcing plate 800 is approximately triangular in shape.

[0060] In the above embodiments, the reinforcement plate 800 is arranged in an approximately triangular shape. Since the two disconnector switch bodies 200 and the drive shaft 501 are located in three different positions, the approximate triangular shape of the reinforcement plate 800 utilizes the principle of triangle stability, facilitating the installation of the two disconnector switch bodies 200 and the drive shaft 501 (the drive shaft 501 passes through the reinforcement plate 800 and its shaft is rotatably connected to the reinforcement plate 800). This results in higher stability for the installed two disconnector switch bodies 200 and the drive shaft 501. Furthermore, the reinforcement plate 800 increases the connection area between the two disconnector switch bodies 200, thereby improving the stability of the connection between them. Specifically, the reinforcement plate 800 presses down on the disconnector switch body 200 located below it, while supporting the disconnector switch body 200 located above it. In other words, the reinforcement plate 800 enhances the stability of the connection between the two disconnector switch bodies 200.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A side-opening electrically operated disconnect switch, characterized in that, include: Mounting plate (100), said mounting plate (100) is installed in the disconnector switch cabinet; Two disconnector switch bodies (200), one of which is disposed on the upper surface of the mounting plate (100), and the other is disposed directly above the one of which is disposed and the two are connected by an insulating block (300). An electric operating device (400) is disposed below the mounting plate (100) relative to the two disconnector switch bodies (200), and its driving end is connected to the transmission end of the two disconnector switch bodies (200) through a connector (500) and is used to control the opening or closing of the two disconnector switch bodies (200).

2. The side-opening electrically disconnecting switch according to claim 1, characterized in that, Both disconnector switch bodies (200) include two insulators (201), two outgoing line units (202), and a double-bridge disconnector unit (203). Two insulators (201) are spaced apart at one end on one side wall of the mounting plate (100). Two outgoing line units (202) are respectively disposed at the ends of the two insulators (201) away from the mounting plate (100). The double-bridge isolating knife unit (203) is movably disposed on one of the outgoing line units (202) and its transmission end is connected to the drive end of the electric operating device (400). The electric operating device (400) is used to control the opening or closing of the double-bridge isolating knife unit (203) and the other outgoing line unit (202).

3. The side-opening electrically disconnecting switch according to claim 2, characterized in that, Both of the aforementioned outgoing units (202) include two outgoing plates (2021) and a pad (2022); One of the outgoing plates (2021) is located at the end of the corresponding insulator (201) away from the mounting plate (100), and the other outgoing plate (2021) is located directly above the one outgoing plate (2021) and the two are connected by the pad (2022). One side of the double-bridge isolation knife unit (203) is movably connected to one side of the two outgoing plates (2021).

4. The side-opening electrically disconnecting switch according to claim 3, characterized in that, The double-bridge isolation knife unit (203) is fixedly connected to the end of the connector (500) away from the electric operating device (400) and includes a first isolation knife (2031), two second isolation knives (2032) and a third isolation knife (2033) arranged sequentially from top to bottom. A spring plate (2034) is provided on the side of the first isolation blade (2031) away from the second isolation blade (2032), between the two second isolation blades (2032), and on the side of the third isolation blade (2033) away from the second isolation blade (2032). The side of the first isolation blade (2031) close to the second isolation blade (2032) and the side of the third isolation blade (2033) close to the second isolation blade (2032) are both at a preset distance from their corresponding second isolation blades (2032). One side of each of the two outlet plates (2021) extends into and is movably connected between the first isolation blade (2031) and one of the second isolation blades (2032), and the other second isolation blade (2032) and the third isolation blade (2033).

5. The side-opening electrically disconnecting switch according to claim 4, characterized in that, The first isolation blade (2031), the two second isolation blades (2032) and the third isolation blade (2033) have the same structure, and heat dissipation slots (600) are provided on both sides of the first isolation blade (2031), the two second isolation blades (2032) and the third isolation blade (2033).

6. The side-opening electrically disconnecting switch according to claim 4, characterized in that, The first isolation blade (2031), the two second isolation blades (2032), the third isolation blade (2033), and the two outgoing plates (2021) are all made of T2 copper material, and their outer surfaces are all provided with a conductive layer.

7. The side-opening electrically disconnecting switch according to claim 4, characterized in that, The connector (500) includes a drive shaft (501) and two linkage units (502). One end of the drive shaft (501) passes through the mounting plate (100) and is connected to the drive end of the electric operating device (400). The two linkage units (502) are respectively sleeved on the drive shaft (501) and correspond one-to-one with the two double-bridge isolation knife units (203). Each of the two linkage units (502) includes a first linkage (5021) and two second linkages (5022). The first connecting rod (5021) is sleeved on the transmission shaft (501). One end of each of the two second connecting rods (5022) is movably connected to the end of the first connecting rod (5021) away from the transmission shaft (501). The other ends of the two second connecting rods (5022) extend into and are movably connected between the first isolation blade (2031) and one of the second isolation blades (2032), and between the other second isolation blade (2032) and the third isolation blade (2033).

8. The side-opening electrically disconnecting switch according to claim 7, characterized in that, It also includes an auxiliary switch (700); The electric operating device (400) is provided with a support plate (401), the auxiliary switch (700) is provided on the support plate (401) and its input end passes through the support plate (401) and is connected to an auxiliary connecting rod (701). The end of the auxiliary connecting rod (701) away from the input end of the auxiliary switch (700) is connected to the transmission shaft (501).

9. The side-opening electrically disconnecting switch according to any one of claims 2 to 8, characterized in that, The insulator (201) is also provided on the top surface of another disconnecting switch body (200).

10. The side-opening electrically disconnecting switch according to any one of claims 1 to 8, characterized in that, The upper surface of the insulating block (300) is connected to the bottom end of another disconnecting switch body (200) by a reinforcing plate (800); The reinforcing plate (800) is approximately triangular in shape.

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