Disconnector and power supply system

Abstract

The application discloses an isolating switch and a power supply system, and relates to the technical field of low-voltage electrical apparatuses. The isolating switch comprises a handle, an operating mechanism and a switch unit. The operating mechanism comprises a moving mechanism and a plurality of remote tripping mechanisms. The handle is drivingly connected with a movable contact of the switch unit through the moving mechanism. The handle can drive the switch unit to open and close by the moving mechanism. The remote tripping mechanisms are used for receiving tripping signals sent by a power supply system and tripping the moving mechanism to be unlocked according to the tripping signals, so that the switch unit is opened. At least one remote tripping mechanism cannot be reset by the handle. The isolating switch can solve the problem that the isolating switch is easily closed by an operator after fault tripping in the prior art.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 2025101294725, filed on February 5, 2025, entitled "Isolating Switch and Power Supply System". Technical Field

[0003] This application relates to the field of low-voltage electrical technology, and more specifically, to a disconnecting switch and power supply system. Background Technology

[0004] In the field of photovoltaic power generation, the function of an inverter is to convert photovoltaic direct current into alternating current. Traditional inverters connect photovoltaic modules and internal power generation components through disconnect switches. With the technological updates and inverter version iterations in recent years, traditional disconnect switches have been gradually replaced by disconnect switches with remote tripping functions.

[0005] The remote trip disconnect switch can urgently disconnect the photovoltaic system from the internal power generation components in the event of a system fault, thereby protecting the photovoltaic power generation line. After the circuit maintenance is completed, the disconnect switch can be reset and closed using the handle exposed on the outside of the inverter, allowing the inverter to resume operation.

[0006] Because the operating handle is exposed on the outside of the inverter, there is a possibility that the circuit breaker may be accidentally closed without the user's knowledge or before the fault has been thoroughly investigated after the circuit breaker has tripped due to a fault, posing a safety hazard. Summary of the Invention

[0007] The purpose of this application is to provide a disconnecting switch and power supply system that can solve the problem in the prior art where the operator may easily misoperate and close the disconnecting switch after a fault trip.

[0008] The embodiments of this application are implemented as follows:

[0009] A first aspect of this application provides a disconnecting switch, including a handle, an operating mechanism, and a switching unit. The operating mechanism includes an actuating mechanism and multiple remote tripping mechanisms. The handle is driven to the moving contact of the switching unit via the actuating mechanism. When driven, the handle can cause the switching unit to open or close via the actuating mechanism. The remote tripping mechanisms are used to receive a tripping signal from the power supply system and, based on the tripping signal, trip to unlock the actuating mechanism, thereby opening the switching unit. At least one of the remote tripping mechanisms cannot be reset by the handle. This disconnecting switch can solve the problem in the prior art where, after a fault trip, the operator can easily misoperate and close the disconnecting switch.

[0010] In one possible implementation, the operating mechanism further includes a housing and a first reset member and at least one second reset member slidably disposed within the housing. The plurality of remote tripping mechanisms include a first remote tripping mechanism and at least one second remote tripping mechanism. The handle is driven to move the first reset member, thereby causing the first reset member to reset the first remote tripping mechanism. The second reset member is driven to move, thereby causing the second reset member to reset the second remote tripping mechanism.

[0011] In one possible implementation, the first remote tripping mechanism and the second remote tripping mechanism are respectively disposed on the same side and / or opposite side of the actuating mechanism, and the sliding direction axis of the first reset member and the sliding direction axis of the second reset member are parallel.

[0012] In one possible implementation, both the first remote tripping mechanism and the second remote tripping mechanism include a trip unit and a driving member. The trip unit includes a fixed part and a slidable striking part. The driving member abuts against the actuating mechanism. When the trip unit receives a tripping signal from the power supply system, the striking part slides out relative to the fixed part and drives the actuating mechanism to unlock through the driving member.

[0013] As one possible implementation, the operating mechanism further includes a transmission plate connected to the handle shaft hole. The transmission plate is provided with a first transmission part. The first reset member includes a slide plate. The slide plate is provided with a second transmission part and a pushing part. The first transmission part and the second transmission part cooperate with each other to drive the handle to the first reset member. The pushing part is located on the side of the striking member away from the fixed part. The pushing part is used to drive the striking member to reset.

[0014] In one possible implementation, the second reset member includes a pressing member, and the housing has a through hole, with the pressing member passing through the through hole. When the second remote tripping mechanism trips, the pressing member protrudes from the surface of the housing; and / or, the second reset member includes a pressing member, and the housing has a through hole, with the pressing member passing through the through hole. When the second remote tripping mechanism trips, the pressing member does not protrude from the surface of the housing; and / or, the second reset member includes a mounting portion and a slidable ejector, the ejector being used to receive a reset signal from the power supply system and to slide out relative to the mounting portion according to the reset signal, thereby driving the striking member to reset.

[0015] In one possible implementation, when the second reset member includes a pressing member, the second reset member further includes an elastic member, which abuts against the pressing member and the housing, and the elastic member is used to provide a clamping force to the pressing member.

[0016] As one possible implementation, the trip unit is a flux trip unit, which has a signal terminal that is electrically connected to the power supply system and is used to receive a trip signal from the power supply system.

[0017] In one possible implementation, the signal terminal includes two 2P terminals, which are respectively connected to the first remote tripping mechanism and the second remote tripping mechanism; or, the signal terminal includes a 4P terminal, which is connected to the first remote tripping mechanism and the second remote tripping mechanism.

[0018] A second aspect of this application provides a power supply system including a controller, an input module, an output module, and the aforementioned disconnecting switch electrically connected between the input module and the output module and electrically connected to the controller. The controller is configured to issue multiple tripping signals to cause a plurality of remote tripping mechanisms of the disconnecting switch to trip accordingly, thereby cutting off the electrical connection between the input module and the output module. This disconnecting switch can solve the problem in the prior art where, after a fault trip, the operator may easily misoperate and close the disconnecting switch.

[0019] The beneficial effects of the embodiments of this application include:

[0020] The disconnecting switch includes a handle, an operating mechanism, and a switching unit. The operating mechanism includes an actuating mechanism and multiple remote tripping mechanisms. The handle is driven to the moving contact of the switching unit via the actuating mechanism, allowing the handle to manually open or close the switching unit through the actuating mechanism, thus enabling the disconnecting switch to disconnect or connect its circuit. The remote tripping mechanisms receive tripping signals from the power supply system and, based on these signals, trigger the actuating mechanism to unlock, allowing the switching unit to open under remote control of the power supply system. At least one remote tripping mechanism cannot be directly reset by the handle. In the operating mechanism provided in this application, each remote tripping mechanism can act on the actuating mechanism, ensuring that any remote tripping mechanism, upon receiving a tripping signal from the power supply system, can unlock the actuating mechanism, thereby opening the switching unit. Among the multiple remote tripping mechanisms, at least one cannot be directly reset by the handle. Therefore, regardless of how the operator closes the circuit using the handle, this unresettable remote tripping mechanism will keep the actuating mechanism unlocked, ensuring the switching unit remains in the open state. This prevents operators from accidentally closing the switch unit by incorrectly operating the handle without identifying the fault, which could cause the circuit to be prematurely connected and lead to more serious consequences. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is one of the structural schematic diagrams of the disconnecting switch provided in the first embodiment of this application;

[0023] Figure 2 This is one of the structural schematic diagrams of the operating mechanism provided in the first embodiment of this application;

[0024] Figure 3 This is the second schematic diagram of the structure of the operating mechanism provided in the first embodiment of this application;

[0025] Figure 4 This is the third schematic diagram of the structure of the operating mechanism provided in the first embodiment of this application;

[0026] Figure 5 Fourth schematic diagram of the operating mechanism provided in the first embodiment of this application;

[0027] Figure 6Fifth schematic diagram of the structure of the operating mechanism provided in the first embodiment of this application;

[0028] Figure 7 This is a second schematic diagram of the structure of the disconnector provided in the first embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the structure of the disconnecting switch provided in the second embodiment of this application;

[0030] Figure 9 This is a schematic diagram of the operating mechanism provided in the third embodiment of this application;

[0031] Figure 10 This is a schematic diagram of the operating mechanism provided in the fourth embodiment of this application;

[0032] Figure 11 This is one of the structural schematic diagrams of the disconnecting switch provided in the fifth embodiment of this application;

[0033] Figure 12 This is the second schematic diagram of the structure of the disconnecting switch provided in the fifth embodiment of this application;

[0034] Figure 13 This is a schematic diagram of the power supply system provided in an embodiment of this application.

[0035] Icons: 100-Isolating switch; 10-Handle; 20-Operating mechanism; 21-Housing; 22-Actuating mechanism; 23A-First remote tripping mechanism; 23B-Second remote tripping mechanism; 231-Trip device; 2311-Fixing part; 2312-Actuating part; 2313-2P terminal; 2314-4P terminal; 232-Driver; 24-Slide plate; 241-Push part; 242-Guide rod; 243-Second transmission part; 25-Pressing part; 26-Transmission plate; 261-First transmission part; 271-Mounting part; 272-Ejector; 30-Switch unit; 200-Power supply system; 210-Controller; 220-Input module; 230-Output module. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Please refer to the reference. Figures 1 to 12This application provides a disconnecting switch 100, including a handle 10, an operating mechanism 20, and a switching unit 30. The operating mechanism 20 includes an actuation mechanism 22 and multiple remote tripping mechanisms. The handle 10 is driven to the moving contact of the switching unit 30 via the actuation mechanism 22. When driven, the handle 10 can cause the switching unit 30 to open or close via the actuation mechanism 22. The remote tripping mechanisms are used to receive tripping signals from the power supply system 200 and, based on the tripping signals, trip to unlock the actuation mechanism 22, thereby causing the switching unit 30 to open. At least one remote tripping mechanism cannot be reset via the handle 10. This disconnecting switch 100 can solve the problem in the prior art where, after a fault trip, the operator may easily misoperate and close the disconnecting switch 100.

[0043] It should be noted that, as Figure 1 As shown, the disconnector switch 100 includes a handle 10, an operating mechanism 20, and a switch unit 30. The operating mechanism 20 and the switch unit 30 are stacked sequentially along the axial direction of the handle 10. The handle 10 is driven to the moving contact of the switch unit 30 through the operating mechanism 20, so that the handle 10 can drive the switch unit 30 to open or close through the operating mechanism 20, thereby enabling the disconnector switch 100 to disconnect or connect the circuit it is in.

[0044] In existing technology, disconnect switches contain only one remote tripping mechanism. When a fault occurs in the power supply circuit, the tripping signal sent by the power supply system will cause the remote tripping mechanism to trip. After troubleshooting, the operator can reset the remote tripping mechanism via a handle, thereby allowing the switch unit to reclose. However, for some complex faults, operators are prone to misjudgment, which may lead to more serious consequences after the power supply circuit is restored.

[0045] To solve the above problems, such as Figures 2 to 5As shown, the operating mechanism 20 provided in this application includes an actuating mechanism 22 and multiple remote tripping mechanisms. The handle 10 is driven to the moving contact of the switch unit 30 via the actuating mechanism 22. When driven, the handle 10 can manually open and close the switch unit 30 through the actuating mechanism 22. Each remote tripping mechanism can act on the actuating mechanism 22, so that any remote tripping mechanism, upon receiving a tripping signal from the power supply system 200, can unlock the actuating mechanism 22, thereby opening the switch unit 30. Among the multiple remote tripping mechanisms, at least one cannot be directly reset by the handle 10. Therefore, regardless of how the operator drives the handle 10 to close the circuit, this unresettable remote tripping mechanism will keep the actuating mechanism 22 unlocked, thus keeping the switch unit 30 always in the open state. This avoids the operator mistakenly closing the switch unit 30 by incorrectly operating the handle 10 without identifying the fault, which could cause the circuit to become unnecessarily conductive and lead to more serious consequences.

[0046] As one possible implementation method, such as Figures 1 to 5 , Figure 10 As shown, in this embodiment, the operating mechanism 20 further includes a housing 21 and a first reset member and at least one second reset member slidably disposed within the housing 21. The plurality of remote tripping mechanisms include a first remote tripping mechanism 23A and at least one second remote tripping mechanism 23B. The handle 10 is driven to connect with the first reset member. The handle 10 is driven to move the first reset member so that the first reset member drives the first remote tripping mechanism 23A to reset. The second reset member is driven to move so that the second reset member drives the second remote tripping mechanism 23B to reset.

[0047] It should be noted that, as Figure 1 As shown, the operating mechanism 20 also includes a housing 21, which provides support and protection for other components of the operating mechanism 20. Among these, in Figures 2 to 5 , Figure 10 In order to facilitate understanding of the reset function of the first reset component on the first remote tripping mechanism 23A and the reset function of the second reset component on the second remote tripping mechanism 23B, the housing 21 is hidden and displayed from three different perspectives to facilitate understanding of the positional and assembly relationships of the first reset component, the second reset component, the first remote tripping mechanism 23A, the second remote tripping mechanism 23B and the actuation mechanism 22.

[0048] To differentiate between the first remote tripping mechanism 23A and the second remote tripping mechanism 23B, this application designs different reset methods for the two mechanisms. Specifically, the handle 10 is driven by the first reset element. When the first remote tripping mechanism 23A trips, the operator can move the first reset element by driving the handle 10, thus resetting the first remote tripping mechanism 23A. However, when the second remote tripping mechanism 23B trips, the operator cannot move the second reset element by operating the handle 10; instead, the operator must move the second reset element to reset the second remote tripping mechanism 23B. This prevents the operator from mistakenly closing the switch unit 30 by operating the handle 10 without identifying the fault, thus avoiding unintended conduction of the circuit.

[0049] In one possible implementation, the first remote tripping mechanism 23A and the second remote tripping mechanism 23B are respectively disposed on the same side and / or opposite sides of the actuating mechanism 22, and the sliding directions of the first reset member and the sliding directions of the second reset member are parallel to each other. For example, as... Figure 5 As shown, in some embodiments, there is only one first remote tripping mechanism 23A and one second remote tripping mechanism 23B. The first remote tripping mechanism 23A and the second remote tripping mechanism 23B are respectively disposed on opposite sides of the actuating mechanism 22, and the sliding direction axes of the first reset member and the second reset member are parallel; or, as shown... Figure 10 As shown, in some embodiments, there is one first remote tripping mechanism 23A and two second remote tripping mechanisms 23B. One second remote tripping mechanism 23B and the first remote tripping mechanism 23A are respectively disposed on opposite sides of the actuating mechanism 22, while the other second remote tripping mechanism 23B and the first remote tripping mechanism 23A are disposed on the same side of the actuating mechanism 22. The sliding direction of the first reset member and the sliding direction axis of the second reset member are parallel. It should be understood that the parallel sliding direction axis of the first reset member and the sliding direction axis of the second reset member includes two cases: the sliding direction of the first reset member and the sliding direction of the second reset member are the same, and the sliding direction of the first reset member and the sliding direction of the second reset member are opposite. Those skilled in the art should be able to make reasonable selections and designs according to actual conditions, and no specific limitations are made here. In this way, by rationally arranging the first remote tripping mechanism 23A and the second remote tripping mechanism 23B, it can be ensured that both the first remote tripping mechanism 23A and the second remote tripping mechanism 23B can act on the actuation mechanism 22 to unlock the actuation mechanism 22, while also avoiding excessive product size.

[0050] As one possible implementation method, such as Figures 1 to 5 , Figure 9As shown, in this embodiment, both the first remote tripping mechanism 23A and the second remote tripping mechanism 23B include a trip unit 231 and a drive member 232. The trip unit 231 includes a fixed part 2311 and a slidable striking part 2312. The drive member 232 abuts against the actuation mechanism 22. When the trip unit 231 receives a tripping signal from the power supply system 200, the striking part 2312 slides out relative to the fixed part 2311 and drives the actuation mechanism 22 to unlock through the drive member 232.

[0051] It should be noted that, as Figure 4 and Figure 5 As shown, the driving member 232 abuts against the actuating mechanism 22, so that the driving member 232 can drive the actuating mechanism 22 to move, thereby unlocking the actuating mechanism 22 and causing the switching unit 30 to open. When the trip unit 231 contacts the trip signal issued by the power supply system 200, the striking member 2312 can slide out relative to the fixed part 2311. During the sliding out process of the striking member 2312, the striking member 2312 can drive the driving member 232 to slide relative to the housing 21, thereby driving the actuating mechanism 22 to move relative to the housing 21 in a preset direction to unlock, thereby causing the switching unit 30 to change from closed to open.

[0052] It is worth noting that, such as Figures 1 to 5 As shown, in some embodiments, the aforementioned actuating mechanism 22 may include an unlocking element, a locking plate, and a tripping element; or, in other embodiments, the aforementioned actuating mechanism 22 may include a lever, a spring, and a pawl. The actuating mechanism 22 shown in the accompanying drawings is for illustrative purposes only and is not intended to limit the actual structure of the actuating mechanism 22. Regarding the specific principle and working process of the actuating mechanism 22 moving relative to the housing 21 in a preset direction to unlock and thereby drive the switch unit 30 from closed to open, those skilled in the art should be able to understand it by referring to the tripping process of the disconnecting switch 100 in the prior art, and it will not be described in detail here.

[0053] As one possible implementation method, such as Figures 1 to 5 As shown, in this embodiment, the operating mechanism 20 further includes a transmission plate 26 connected to the shaft hole of the handle 10. The transmission plate 26 is provided with a first transmission part 261. The first reset member includes a slide plate 24. The slide plate 24 is provided with a second transmission part 243 and a pushing part 241. The first transmission part 261 and the second transmission part 243 cooperate with each other to drive the handle 10 to the first reset member. The pushing part 241 is provided on the side of the striking member 2312 away from the fixed part 2311. The pushing part 241 is used to drive the striking member 2312 to reset.

[0054] It should be noted that, in order to ensure that the disconnecting switch 100 can trip in the event of a subsequent fault, the first remote tripping mechanism 23A must also be able to reset after tripping, that is, the striking member 2312 must be able to slide back relative to the fixed part 2311. Therefore, as follows... Figures 1 to 5 As shown, in this embodiment, the operating mechanism 20 further includes a transmission plate 26 connected to the shaft hole of the handle 10. The transmission plate 26 is provided with a first transmission part 261. The first reset member includes a sliding plate 24, which can slide relative to the housing 21. The sliding plate 24 is provided with a second transmission part 243 and a pushing part 241. The first transmission part 261 and the second transmission part 243 cooperate with each other to drive the handle 10 to the first reset member. The pushing part 241 is located on the side of the striking member 2312 away from the fixed part 2311. When the striking member 2312 slides out towards the side away from the fixed part 2311, the handle 10 drives the sliding plate 24 to slide relative to the housing 21, and the pushing part 241 can push the striking member 2312 to slide towards the side closer to the fixed part 2311 for reset. For example, the first transmission part 261 is a connecting hole, and the second transmission part 243 is a connecting post. The connecting post is housed within the connecting hole so that the handle 10 can drive the sliding plate 24 to slide relative to the housing 21.

[0055] Based on this, such as Figure 6 and Figure 10 As shown, the operating mechanism 20 may further include a guide rod 242 fixedly connected within the housing 21. A guide hole is provided on the slide plate 24, through which the slide plate 24 passes onto the guide rod 242, allowing the slide plate 24 to slide relative to the housing 21. Thus, the guide rod 242 guides and restricts the sliding of the slide plate 24. For example, two guide rods 242 are provided, parallel to each other and spaced apart, to make the sliding stroke of the slide plate 24 more stable and reliable.

[0056] As one possible implementation method, such as Figures 1 to 6 As shown, in some embodiments, the second reset member includes a pressing member 25, and the housing 21 is provided with a through hole. The pressing member 25 passes through the through hole, and when the second remote tripping mechanism 23B trips, the pressing member 25 protrudes from the surface of the housing 21; and / or, as shown Figure 11 and Figure 12 As shown, in some other embodiments, the second reset member includes a pressing member 25, and the housing 21 has a through hole, through which the pressing member 25 passes. When the second remote tripping mechanism 23B trips, the pressing member 25 does not protrude from the surface of the housing 21; and / or, as shown Figure 9As shown, in some other embodiments, the second reset member includes a mounting portion 271 and a slidable pop-out member 272. The pop-out member 272 is used to receive a reset signal from the power supply system 200 and slide out relative to the mounting portion 271 according to the reset signal, so as to drive the striking member 2312 to reset.

[0057] It should be noted that, in order to ensure that the disconnecting switch 100 can trip in the event of a subsequent fault, the second remote tripping mechanism 23B must also be able to reset after tripping, that is, the striking member 2312 must be able to slide back relative to the fixed part 2311. Therefore, as follows... Figures 1 to 6 As shown, in some embodiments, the second reset member includes a pressing member 25, which passes through a through hole in the housing 21 to allow the pressing member 25 to slide relative to the housing 21. The pressing member 25 is disposed on the side of the striking member 2312 away from the fixed part 2311. When the second remote release mechanism 23B is in the unreleased state, the end of the pressing member 25 away from the striking member 2312 does not protrude from the housing 21. When the second remote release mechanism 23B releases, the striking member 2312 slides out relative to the fixed part 2311, causing the end of the pressing member 25 away from the striking member 2312 to extend out of the housing 21. At this time, the operator can easily apply external force to the pressing member 25 to drive the striking member 2312 to slide and reset towards the side closer to the fixed part 2311; and / or, as Figure 11 and Figure 12 As shown, in some other embodiments, the second reset member includes a pressing member 25. Similar to the previous embodiments, the pressing member 25 passes through a through hole in the housing 21 so that the pressing member 25 can slide relative to the housing 21. The pressing member 25 is disposed on the side of the striking member 2312 away from the fixed part 2311. When the second remote release mechanism 23B is in the unreleased state, the end of the pressing member 25 away from the striking member 2312 does not protrude from the housing 21. Unlike the previous embodiments, when the second remote release mechanism 23B is released, the striking member 2312 slides out relative to the fixed part 2311, driving the pressing member 25 to slide out. The end of the pressing member 25 away from the striking member 2312 moves toward the side near the through hole of the housing 21 until the striking member 2312 slides to its maximum stroke relative to the fixed part 2311 (or the pressing member 25 moves to its maximum stroke). At this point, the end of the pressing member 25 away from the striking member 2312 is still located inside the through hole or just flush with the surface of the housing 21, and does not directly protrude from the surface of the housing 21. At this time, the operator can apply external force to the pressing member 25 with the help of a tool, so that the pressing member 25 drives the striking member 2312 to slide and reset toward the side near the fixed part 2311; and / or, as Figure 9As shown, in some other embodiments, the second reset member includes a mounting portion 271 and a slidable ejector 272. The ejector 272 is used to receive a reset signal from the power supply system 200 and slide out relative to the mounting portion 271 according to the reset signal, so as to drive the striking member 2312 to reset. This allows the ejector 272 to move relative to the mounting portion 271 under the remote control of the power supply system 200, thereby driving the second remote tripping mechanism 23B to be remotely reset.

[0058] In addition, the handle 10 and the through hole can be arranged on two adjacent side walls of the housing 21. In this way, when the operator needs to connect the disconnect switch 100 to the power supply system 200, the handle 10 can be exposed outside the housing of the power supply system 200, while the pressing member 25 is housed inside the housing of the power supply system 200. In this way, when the second remote tripping mechanism 23B trips, the operator can only open the housing of the power supply system 200 before operating the pressing member 25, and then reset the second remote tripping mechanism 23B. Once the second remote tripping mechanism 23B trips, no matter how the operator operates the handle 10, the switch unit 30 cannot be directly closed.

[0059] In one possible implementation, when the second reset member includes a pressing member 25, the second reset member also includes an elastic member (not shown in the figure). The elastic member abuts between the pressing member 25 and the housing 21. The elastic member is used to provide a clamping force to the pressing member 25 to ensure that the pressing member 25 can better act on the striking member 2312, so that the operator can apply an external force to the pressing member 25 to drive the striking member 2312 to reset.

[0060] As one possible implementation method, such as Figures 1 to 8 As shown, in this embodiment, all trip units 231 are flux-sensitive trip units 231. Each flux-sensitive trip unit 231 has a signal terminal, which is electrically connected to the power supply system 200. The signal terminal is used to receive the trip signal issued by the power supply system 200. Therefore, when the power supply system 200 issues a trip signal, the flux-sensitive trip unit 231 can receive the trip signal through the signal terminal and remotely trip according to the trip signal, thereby enabling the disconnector switch 100 to have a remote tripping function.

[0061] As one possible implementation method, in some embodiments, such as Figures 1 to 7 As shown, the signal terminal includes two 2P terminals 2313, which are respectively connected to the first remote tripping mechanism 23A and the second remote tripping mechanism 23B. The two 2P terminals 2313 are symmetrically arranged on both sides of the actuating mechanism 22 to shorten the distance between the two 2P terminals 2313 and their corresponding remote tripping mechanisms; or, in other embodiments, such as Figure 8As shown, the signal terminal includes a 4P terminal 2314, which is connected to the first remote tripping mechanism 23A and the second remote tripping mechanism 23B to reduce the number of flexible connection wires when the disconnector 100 is connected to the power supply system 200. Regarding the specific form, actual quantity, and layout of the signal terminal, those skilled in the art should be able to make reasonable selections and designs based on the actual situation; no specific restrictions are imposed here.

[0062] Please refer to the reference again. Figure 13 This application also provides a power supply system 200, including a controller 210, an input module 220, an output module 230, and the aforementioned disconnecting switch 100 electrically connected between the input module 220 and the output module 230 and electrically connected to the controller 210. The controller 210 is used to issue multiple tripping signals to cause multiple remote tripping mechanisms of the disconnecting switch 100 to trip accordingly, thereby cutting off the electrical connection between the input module 220 and the output module 230. The power supply system 200 can be an inverter; in this case, the input module 220 can be a power converter, and the output module 230 can be a photovoltaic module. Furthermore, the power supply system 200 may also include a detection module to detect faults and send the faults to the controller 210. The controller 210 can classify faults using a preset algorithm and issue different tripping signals according to different fault classifications, thereby controlling different remote tripping mechanisms to trip accordingly. Since the structure and beneficial effects of the disconnecting switch 100 have been described in detail in the foregoing embodiments, they will not be repeated here.

[0063] For example, in this embodiment, the multiple trip signals include a first trip signal and a second trip signal, and the multiple remote trip mechanisms include a first remote trip mechanism 23A and a second remote trip mechanism 23B. In practical use, when a simple fault occurs, the controller 210 sends a first trip signal. After receiving the first trip signal, the first remote trip mechanism 23A can unlock the action mechanism 22 according to the first trip signal, thereby causing the switch unit 30 to open. After the fault is cleared, the first remote trip mechanism 23A can be reset by the handle 10 located outside the power supply system 200. At this time, the handle 10 can drive the switch unit 30 to close through the action mechanism 22. When a complex fault occurs, the controller 210 sends a second trip signal. After receiving the second trip signal, the second remote trip mechanism 23B can unlock the action mechanism 22 according to the second trip signal, thereby causing the switch unit 30 to open. After the fault is cleared, the second remote trip mechanism 23B can only be reset by the pressing part 25 located inside the power supply system 200 or by the pop-out part 272 under the control of the reset signal sent by the power supply system 200. At this time, the handle 10 can drive the switch unit 30 to close through the action mechanism 22.

[0064] The above description is merely an optional embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0065] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

Claims

1. A disconnecting switch, characterized in that, The device includes a handle (10), an operating mechanism (20), and a switch unit (30). The operating mechanism (20) includes an actuation mechanism (22) and multiple remote tripping mechanisms. The handle (10) is driven to the moving contact of the switch unit (30) through the actuation mechanism (22). When driven, the handle (10) can drive the switch unit (30) to open or close through the actuation mechanism (22). The remote tripping mechanism is used to receive a tripping signal from the power supply system (200) and trip according to the tripping signal to drive the actuation mechanism (22) to unlock, so that the switch unit (30) is opened. At least one of the remote tripping mechanisms cannot be reset by the handle (10).

2. The disconnecting switch according to claim 1, characterized in that, The operating mechanism (20) further includes a housing (21) and a first reset member and at least one second reset member slidably disposed within the housing (21). The plurality of remote tripping mechanisms include a first remote tripping mechanism (23A) and at least one second remote tripping mechanism (23B). The handle (10) is driven to connect with the first reset member. The handle (10) is driven to move the first reset member so that the first reset member drives the first remote tripping mechanism (23A) to reset. The second reset member is driven to move so that the second reset member drives the second remote tripping mechanism (23B) to reset.

3. The disconnecting switch according to claim 2, characterized in that, The first remote tripping mechanism (23A) and the second remote tripping mechanism (23B) are respectively disposed on the same side and / or opposite side of the actuation mechanism (22), and the sliding direction axis of the first reset member and the sliding direction axis of the second reset member are parallel.

4. The disconnecting switch according to claim 2, characterized in that, Both the first remote tripping mechanism (23A) and the second remote tripping mechanism (23B) include a trip unit (231) and a drive member (232). The trip unit (231) includes a fixed part (2311) and a slidable striking part (2312). The drive member (232) abuts against the actuating mechanism (22). When the trip unit (231) receives a tripping signal from the power supply system (200), the striking part (2312) slides out relative to the fixed part (2311) and drives the actuating mechanism (22) to unlock through the drive member (232).

5. The disconnecting switch according to claim 4, characterized in that, The operating mechanism (20) further includes a transmission plate (26) connected to the shaft hole of the handle (10). The transmission plate (26) is provided with a first transmission part (261). The first reset member includes a slide plate (24). The slide plate (24) is provided with a second transmission part (243) and a pushing part (241). The first transmission part (261) and the second transmission part (243) cooperate with each other to drive the handle (10) to the first reset member. The pushing part (241) is located on the side of the striking member (2312) away from the fixed part (2311). The pushing part (241) is used to drive the striking member (2312) to reset.

6. The disconnecting switch according to claim 4, characterized in that, The second reset member includes a pressing member (25), and the housing (21) is provided with a through hole. The pressing member (25) passes through the through hole. When the second remote tripping mechanism (23B) trips, the pressing member (25) protrudes from the surface of the housing (21); and / or, the second reset member includes a pressing member (25), and the housing (21) is provided with a through hole. The pressing member (25) passes through the through hole. When the second remote tripping mechanism (23B) trips, the pressing member (25) does not protrude from the surface of the housing (21); and / or, the second reset member includes a mounting part (271) and a slidable ejector (272). The ejector (272) is used to receive a reset signal from the power supply system (200) and slide out relative to the mounting part (271) according to the reset signal to drive the striking member (2312) to reset.

7. The disconnecting switch according to claim 6, characterized in that, When the second reset member includes a pressing member (25), the second reset member also includes an elastic member, which abuts between the pressing member (25) and the housing (21), and the elastic member is used to provide a clamping force to the pressing member (25).

8. The disconnecting switch according to claim 4, characterized in that, All trip units (231) are flux trip units (231). Each flux trip unit (231) has a signal terminal. The signal terminal is electrically connected to the power supply system (200) and is used to receive the trip signal issued by the power supply system (200).

9. The disconnecting switch according to claim 8, characterized in that, The signal terminal includes two 2P terminals (2313), which are respectively connected to the first remote tripping mechanism (23A) and the second remote tripping mechanism (23B); or, the signal terminal includes a 4P terminal (2314), which is connected to the first remote tripping mechanism (23A) and the second remote tripping mechanism (23B).

10. A power supply system, characterized in that, The device includes a controller (210), an input module (220), an output module (230), and a disconnecting switch (100) according to any one of claims 1 to 9, which is electrically connected between the input module (220) and the output module (230) and is electrically connected to the controller (210). The controller (210) is configured to issue multiple trip signals to cause multiple remote tripping mechanisms of the disconnecting switch (100) to trip accordingly, thereby severing the electrical connection between the input module (220) and the output module (230).

Images