Power supply system

Abstract

The application discloses a power supply system and relates to the technical field of low-voltage electrical apparatuses. The power supply system comprises a controller, an input module, an output module and an isolating switch. The isolating switch comprises a handle, an action mechanism, a contact mechanism, a first remote tripping mechanism and at least one second remote tripping mechanism. The handle is driven to drive the contact mechanism to open or close by the action mechanism. The first remote tripping mechanism and the second remote tripping mechanism are used to be tripped separately according to different tripping signals sent by the controller. The first remote tripping mechanism can be reset by the handle, and the second remote tripping mechanism cannot be reset by the handle. When a fault occurs, the controller is used to grade the fault and send corresponding tripping signals, control the first remote tripping mechanism and / or the second remote tripping mechanism to trip, drive the action mechanism to be unlocked, and make the contact mechanism open. The power supply system can avoid the situation that the fault is spread when the DC switch is manually closed while the internal fault of the inverter still exists.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical technology, and more specifically, to a power supply system. Background Technology

[0002] With the continuous increase in photovoltaic installations, photovoltaic inverters have become the mainstream power generation equipment in the photovoltaic industry. In order to ensure the stable operation of the power generation system in which the photovoltaic inverter is located, the photovoltaic inverter needs to prevent the fault from spreading when an internal fault occurs.

[0003] Currently, Figure 1 When a fault occurs inside the photovoltaic inverter (such as a short circuit in the DC bus BUS+, BUS-, or the internal power transistor), the controller sends a voltage drive signal to the flux of the DC switch S1, causing the DC switch S1 to open. The connection between the photovoltaic inverter and the photovoltaic string is then disconnected, thereby achieving fault isolation.

[0004] For the above fault isolation scheme, even if the internal fault of the inverter is not eliminated after the DC switch S1 is successfully tripped, the maintenance personnel can still close the DC switch S1 again by operating the operating handle of the DC switch S1, thereby amplifying the inverter fault. Utility Model Content

[0005] The purpose of this application is to provide a power supply system that can prevent the DC switch from being manually closed when an internal fault still exists in the inverter, thus preventing the fault from spreading.

[0006] The embodiments of this application are implemented as follows:

[0007] A first aspect of this application provides a power supply system including a controller, an input module, an output module, and an isolating switch electrically connected between the input module and the output module and electrically connected to the controller. The isolating switch includes a handle, an actuating mechanism, a contact mechanism, a first remote tripping mechanism, and at least one second remote tripping mechanism. The handle, when driven, can cause the contact mechanism to open or close via the actuating mechanism. The first and second remote tripping mechanisms are used to trip individually according to different tripping signals issued by the controller. The first remote tripping mechanism can be reset via the handle after tripping, while the second remote tripping mechanism cannot be reset via the handle after tripping. In the event of a fault, the controller is used to classify the fault and issue corresponding tripping signals, controlling the first and / or second remote tripping mechanisms to trip, thereby unlocking the actuating mechanism to open the contact mechanism and correspondingly disconnect the electrical connection between the input module and the output module. This power supply system can prevent the DC switch from being manually closed while an internal inverter fault still exists, thus avoiding the spread of the fault.

[0008] As one possible implementation, when the controller determines that the current fault is a level one fault, the controller sends a first trip signal to control the first remote trip mechanism to trip.

[0009] As one possible implementation, when the controller determines that the current fault is a second-level fault, and the severity of the second-level fault is greater than that of the first-level fault, the controller sends a second trip signal to control the second remote trip mechanism to trip.

[0010] As one possible implementation, when the number of times the controller sends out the first trip signal exceeds a first preset threshold, the controller sends out a second trip signal to control the second remote trip mechanism to trip.

[0011] As one possible implementation, when the number of times the controller issues the second trip signal exceeds the second preset threshold, the controller simultaneously issues the first trip signal and the second trip signal, controlling the first remote trip mechanism and the second remote trip mechanism to trip simultaneously.

[0012] In one possible implementation, a first reset member and at least one second reset member are slidably disposed within the housing of the disconnecting switch; wherein, the handle is driven to move the first reset member, so that the first reset member drives the first remote tripping mechanism to reset; the second reset member is driven to move, so that the second reset member drives the second remote tripping mechanism to reset.

[0013] 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.

[0014] 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 controller, the striking part slides out relative to the fixed part and drives the actuating mechanism to unlock through the driving member.

[0015] As one possible implementation, the disconnect switch 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.

[0016] 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 controller and to slide out relative to the mounting portion according to the reset signal, thereby driving the striking member to reset.

[0017] The beneficial effects of the embodiments of this application include:

[0018] The power supply system includes a controller, an input module, an output module, and an isolating switch electrically connected between the input and output modules and also electrically connected to the controller. The isolating switch includes a handle, an actuating mechanism, a contact mechanism, a first remote tripping mechanism, and at least one second remote tripping mechanism. The handle, when driven, can actuate the contact mechanism to open or close the circuit. The first and second remote tripping mechanisms are used to trip independently according to different tripping signals issued by the controller. The first remote tripping mechanism can be reset by the handle after tripping, while the second remote tripping mechanism cannot be reset by the handle after tripping. In the event of a fault, the controller classifies the fault and issues corresponding tripping signals, controlling the first and / or second remote tripping mechanisms to trip, thereby unlocking the actuating mechanism and causing the contact mechanism to open the circuit, thus disconnecting the electrical connection between the input and output modules. When a fault occurs in the power supply system, the controller first performs a fault classification assessment to determine the severity and type of the fault. Then, based on the classification result, the controller issues corresponding tripping signals. These tripping signals control the first and / or second remote tripping mechanisms to perform tripping actions. Once any of the remote tripping mechanisms trips, it will trigger the actuation mechanism to unlock, thereby causing the contact mechanism to complete the opening operation. In this way, the electrical connection between the input and output modules is severed, preventing the fault from further affecting the entire system. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of a power supply system in the prior art;

[0021] Figure 2 This is a schematic diagram of the power supply system provided in an embodiment of this application;

[0022] Figure 3 This is one of the structural schematic diagrams of the disconnecting switch provided in the first embodiment of this application;

[0023] Figure 4 This is a second schematic diagram of the structure of the disconnector provided in the first embodiment of this application;

[0024] Figure 5 This is one of the structural schematic diagrams of the operating mechanism provided in the first embodiment of this application;

[0025] Figure 6 This is the second schematic diagram of the structure of the operating mechanism provided in the first embodiment of this application;

[0026] Figure 7 This is the third schematic diagram of the structure of the operating mechanism provided in the first embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the operating mechanism provided in the second embodiment of this application;

[0028] Figure 9 This is a schematic diagram of the operating mechanism provided in the third embodiment of this application.

[0029] 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; 232-Driver; 24-Slide plate; 241-Pushing part; 243-Second transmission part; 25-Pressing part; 26-Transmission plate; 261-First transmission part; 271-Mounting part; 272-Ejector; 30-Contact mechanism; 200-Power supply system; 210-Controller; 220-Input module; 230-Output module. Detailed Implementation

[0030] 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, 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. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] 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 "horizontal," "vertical," etc., do not indicate that the component must be absolutely horizontal or suspended, but can be slightly tilted. The terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] 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.

[0033] Please refer to the reference. Figures 2 to 9This application provides a power supply system 200, including a controller 210, an input module 220, an output module 230, and an isolating switch 100 electrically connected between the input module 220 and the output module 230 and electrically connected to the controller 210. The isolating switch 100 includes a handle 10, an actuating mechanism 22, a contact mechanism 30, a first remote tripping mechanism 23A, and at least one second remote tripping mechanism 23B. The handle 10, when driven, can drive the contact mechanism 30 to open or close the circuit through the actuating mechanism 22. The first remote tripping mechanism 23A and the second remote tripping mechanism 23B... The tripping mechanism 23B is used to trip individually according to different tripping signals issued by the controller 210. After the first remote tripping mechanism 23A trips, it can be reset by the handle 10, while after the second remote tripping mechanism 23B trips, it cannot be reset by the handle 10. In the event of a fault, the controller 210 is used to classify the fault and issue corresponding tripping signals to control the first remote tripping mechanism 23A and / or the second remote tripping mechanism 23B to trip, thereby unlocking the actuating mechanism 22 and causing the contact mechanism 30 to open, thus cutting off the electrical connection between the input module 220 and the output module 230. This power supply system 200 can prevent the DC switch from being manually closed and causing the fault to spread when an internal fault still exists in the inverter.

[0034] It should be noted that, as Figure 2 As shown, the power supply system 200 includes a controller 210, an input module 220, an output module 230, and a disconnect 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 different tripping signals to cause multiple remote tripping mechanisms of the disconnect switch 100 to trip accordingly, thereby cutting off the electrical connection between the input module 220 and the output module 230. For example, the power supply system 200 can be a photovoltaic inverter, in which case the input module 220 can be a power converter and the output module 230 can be a photovoltaic module.

[0035] Specifically, such as Figure 3 and Figure 4As shown, the aforementioned disconnector 100 includes a handle 10, an operating mechanism 20, and a contact mechanism 30. The operating mechanism 20 and the contact mechanism 30 are stacked sequentially along the axial direction of the handle 10. The operating mechanism 20 includes an actuation mechanism 22, a first remote tripping mechanism 23A, and at least one second remote tripping mechanism 23B. The handle 10 is driven to the contact mechanism 30 via the actuation mechanism 22. When the handle 10 is driven, it can cause the contact mechanism 30 to open or close via the actuation mechanism 22, so that the circuit to which the disconnector 100 is located can be disconnected or connected. The first remote tripping mechanism 23A and the second remote tripping mechanism 23B can both act on the actuation mechanism 22, so that after any remote tripping mechanism receives the tripping signal sent by the controller 210, it can drive the actuation mechanism 22 to unlock, thereby causing the contact mechanism 30 to open, and thus correspondingly cutting off the electrical connection between the input module 220 and the output module 230.

[0036] It should be emphasized that both the first remote tripping mechanism 23A and the second remote tripping mechanism 23B have the function of receiving tripping signals from the controller 210. However, the tripping signals received by the first remote tripping mechanism 23A and the second remote tripping mechanism 23B are different. Furthermore, the first remote tripping mechanism 23A and the second remote tripping mechanism 23B can perform tripping actions independently, driving the actuating mechanism 22 to unlock, thereby causing the contact mechanism 30 to open. After the first remote tripping mechanism 23A completes its tripping action, the operator can reset it by operating the handle 10; however, after the second remote tripping mechanism 23B trips, it cannot be reset by operating the handle 10.

[0037] When a fault occurs in the power supply system 200, the controller 210 first performs a graded assessment of the fault, determining its severity and type. Then, based on the assessment results, the controller 210 issues corresponding trip signals. These trip signals control the first remote tripping mechanism 23A and / or the second remote tripping mechanism 23B to perform tripping actions. Once either remote tripping mechanism trips, it will trigger the actuation mechanism 22 to unlock, thereby causing the contact mechanism 30 to complete the opening operation. In this way, the electrical connection between the input module 220 and the output module 230 is severed, preventing the fault from further affecting the entire system.

[0038] For example, when the controller 210 determines that the current fault is a level one fault (or a simple fault), it means that the severity of the current fault is relatively low. At this time, the controller 210 will send a first trip signal. After receiving the first trip signal, the first remote trip mechanism 23A can trip according to the first trip signal, driving the action mechanism 22 to unlock, thereby driving the contact mechanism 30 to open. After the fault is cleared, the operator can reset the first remote trip mechanism 23A through the handle 10 set outside the power supply system 200, so that the action mechanism 22 can be re-triggered.

[0039] For example, when the controller 210 determines that the current fault is a level two fault (or a complex fault), since the severity of the level two fault is greater than that of the level one fault, the controller 210 will issue a second trip signal. After receiving the second trip signal, the second remote trip mechanism 23B can trip according to the second trip signal, driving the actuation mechanism 22 to unlock, thereby driving the contact mechanism 30 to open. After the fault is cleared, the operator can only reset the second remote trip mechanism 23B by means other than the handle 10, so that the actuation mechanism 22 can be re-triggered.

[0040] In addition, the controller 210 is equipped with a counting mechanism to further ensure the safe and stable operation of the power supply system 200. For example, when the number of times the controller 210 issues the first trip signal exceeds the first preset threshold set in the controller 210, it means that the first-level fault is occurring frequently and the situation may be gradually deteriorating. In order to control the fault more effectively, the controller 210 will issue a second trip signal to control the second remote trip mechanism 23B to trip, so as to deal with the fault with a stronger measure. After the fault is cleared, the operator can only reset the second remote trip mechanism 23B by means other than the handle 10, so that the action mechanism 22 will re-tighten.

[0041] For example, when the number of times the controller 210 issues the second trip signal exceeds the second preset threshold set within the controller 210, it means that the second-level fault is frequently occurring and the degree of harm caused by the fault is extremely high. In this emergency, the controller 210 will issue the first trip signal and the second trip signal simultaneously. These two trip signals will control the first remote trip mechanism 23A and the second remote trip mechanism 23B to trip simultaneously, respectively. Through this double-insurance method, the contact mechanism 30 is quickly disconnected, completely cutting off the electrical connection between the input module 220 and the output module 230, minimizing the losses caused by the fault, and avoiding the fault from having a devastating impact on the entire power supply system 200. After the fault is cleared, the operator needs to reset the second remote trip mechanism 23B first, and then reset the first remote trip mechanism 23A.

[0042] To clearly distinguish between the first remote tripping mechanism 23A and the second remote tripping mechanism 23B, this application designs different reset methods for the first remote tripping mechanism 23A and the second remote tripping mechanism 23B. As one possible implementation, a first reset member and at least one second reset member are slidably disposed within the housing 21 of the disconnector switch 100; wherein, the handle 10 is driven to move the first reset member, causing the first reset member to reset the first remote tripping mechanism 23A; the second reset member is driven to move, causing the second reset member to reset the second remote tripping mechanism 23B.

[0043] It should be noted that the handle 10 is drivenly connected to the first reset member, meaning that when the operator applies external force to the handle 10, the movement of the handle 10 can be transmitted to the first reset member. After the first remote tripping mechanism 23A performs a tripping action upon receiving the first tripping signal from the controller 210, its original mechanical structure changes. At this time, by operating the handle 10, the handle 10 drives the first reset member to slide within the housing 21 of the disconnect switch 100. During this sliding process, the first reset member exerts a pushing force on the first remote tripping mechanism 23A, restoring the first remote tripping mechanism 23A to its initial state before tripping, thereby allowing the first remote tripping mechanism 23A to respond normally to subsequent first tripping signals again.

[0044] The first reset component allows the isolating switch 100 to quickly restore some functions after a fault trip. When a first-level fault occurs, the first remote tripping mechanism 23A trips and cuts off the circuit. After the fault is cleared, the operator can quickly reset the first remote tripping mechanism 23A via the handle 10 to restore the normal opening and closing control capability of the circuit, without having to wait for a complicated maintenance process, thus improving the efficiency of fault handling in the power supply system 200.

[0045] The function of the second reset member is to reset the second remote tripping mechanism 23B. Unlike the first reset member, the second reset member is not directly driven by the handle 10. When it is necessary to reset the second remote tripping mechanism 23B, a driving force is applied to the second reset member through other specific means, causing the second reset member to slide within the housing 21. During the sliding process of the second reset member, it exerts a pushing effect on the second remote tripping mechanism 23B, causing the second remote tripping mechanism 23B to return to its initial state.

[0046] The second reset element ensures that the second remote tripping mechanism 23B can return to normal operation after tripping. Although the second remote tripping mechanism 23B is designed for severe faults and cannot be easily reset manually after tripping, the second reset element provides a reset path for it. This ensures that the disconnecting switch 100 can maintain its full functionality after handling multiple severe faults, enhancing the safety and reliability of the entire power supply system 200 and reducing the risk of power outages or system damage due to disconnecting switch 100 failures.

[0047] As one possible implementation method, such as Figure 5 and Figure 9 As shown, 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.

[0048] For example, such as Figure 5 As shown, in some embodiments, there is only one first remote tripping mechanism 23A and one second remote tripping mechanism 23B, and the first remote tripping mechanism 23A and the second remote tripping mechanism 23B are respectively disposed on opposite sides of the actuating mechanism 22; or, as shown... Figure 9 As shown, in some embodiments, there is one first remote tripping mechanism 23A and two second remote tripping mechanisms 23B. The first remote tripping mechanism 23A and one of the second remote tripping mechanisms 23B are located on the same side of the actuating mechanism 22, while the other second remote tripping mechanism 23B is located on the other side of the actuating mechanism 22. The layout of multiple remote tripping mechanisms on the same side simplifies the structure and reduces the complexity of internal wiring and connections. The layout of multiple remote tripping mechanisms on opposite sides enhances the stability of the unlocking of the actuating mechanism 22. Depending on different application scenarios and performance requirements, a suitable layout can be selected to improve the overall reliability and performance of the disconnector switch 100.

[0049] like Figure 5 and Figure 9 As shown, the sliding directions of the first reset member and the second reset member are parallel to each other. This means that when the first reset member is driven by the handle 10 to slide and reset the first remote tripping mechanism 23A, and when the second reset member is driven by other specific means to slide and reset the second remote tripping mechanism 23B, their movement directions are parallel to each other. This design simplifies the internal mechanical structure layout of the disconnector switch 100, making the reset operation more spatially ordered. The parallel sliding directions ensure that the movements of the two reset members do not interfere with each other, and each independently and stably drives the corresponding remote tripping mechanism to reset.

[0050] As one possible implementation method, such as Figures 6 to 8As shown, 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 controller 210, 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 the actual structures of the first remote tripping mechanism 23A and the second remote tripping mechanism 23B can be the same. For example, 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 fixing part 2311 and a slidable striking member 2312. The fixing part 2311 provides stable support and guidance for the striking member 2312, ensuring that the striking member 2312 can accurately slide out and effectively transmit force to the drive member 232. Simultaneously, the abutting contact between the drive member 232 and the actuating mechanism 22 ensures the stability of force transmission, making the tripping action more reliable and reducing the risk of malfunction or tripping failure.

[0052] For example, 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 contact mechanism 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 5 to 9 As shown, the disconnect switch 100 also 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. For this purpose, a first transmission part 261 is provided on the transmission plate 26, and a second transmission part 243 is correspondingly provided on the slide plate 24. The first transmission part 261 and the second transmission part 243 cooperate with each other to form a driving connection between the handle 10 and the first reset member. When the handle 10 is driven to rotate, since the transmission plate 26 is connected to the shaft hole of the handle 10, the handle 10 can drive the transmission plate 26 to rotate. The first transmission part 261 on the transmission plate 26 and the second transmission part 243 on the slide plate 24 interact to convert the rotational motion of the handle 10 into the linear motion of the slide plate 24. A pushing part 241 is also provided on the slide plate 24, and the pushing part 241 is located on the side of the striking member 2312 facing away from the fixed part 2311. After the first remote tripping mechanism 23A completes its tripping action, the striking member 2312 is in a disengaged state from its initial position. At this time, the operator rotates the handle 10, which drives the slide plate 24 to slide via the transmission plate 26. The pushing part 241 on the slide plate 24 moves along with the slide plate 24. When the pushing part 241 moves to contact the striking member 2312, it applies a pushing force to the striking member 2312, causing it to slide towards the fixed part 2311, thereby resetting the striking member 2312 and restoring the first remote tripping mechanism 23A to a state where it can work normally again. 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 in the connecting hole so that the handle 10 can drive the slide plate 24 to slide relative to the housing 21.

[0055] In one possible implementation, the second reset member includes a pressing member 25, with a through hole provided on the housing 21, and the pressing member 25 passing through the through hole. When the second remote release mechanism 23B is released, the pressing member 25 protrudes from the surface of the housing 21; and / or, the second reset member includes a pressing member 25, with a through hole provided on the housing 21, and the pressing member 25 passing through the through hole. When the second remote release mechanism 23B is released, 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 controller 210 and slide out relative to the mounting part 271 according to the reset signal to drive the striking member 2312 to reset.

[0056] It should be noted that, in order to ensure that the disconnecting switch 100 can trip in the next 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. For this purpose, the second reset member includes a pressing member 25, and a through hole is provided on the housing 21, through which the pressing member 25 passes. For example, in some embodiments, when the second remote tripping mechanism 23B performs a tripping action due to receiving a second tripping signal from the controller 210, the pressing member 25 can protrude from the surface of the housing 21. This design allows the operator to visually see that the second remote tripping mechanism 23B has tripped, serving as a clear fault indication. The operator can easily apply external force to the pressing member 25, pushing it to slide within the through hole, thereby resetting the striking member 2312 of the second remote tripping mechanism 23B.

[0057] And / or, such as Figure 2 As shown, in some other embodiments, when the second remote tripping mechanism 23B performs a tripping action upon receiving a second tripping signal from the controller 210, the pressing member 25 may not protrude from the surface of the housing 21. For example, when the striking member 2312 slides to its maximum stroke relative to the fixed portion 2311 (or the pressing member 25 moves to its maximum stroke), the end of the pressing member 25 away from the striking member 2312 is still located within the through hole or is just flush with the surface of the housing 21. At this time, the operator can apply external force to the pressing member 25 with the aid of a tool, so that the pressing member 25 drives the striking member 2312 to slide and reset towards the side closer to the fixed portion 2311; and / or, as Figure 8 As 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] 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.

[0059] 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 power supply system, characterized in that, The circuit includes a controller (210), an input module (220), an output module (230), and a disconnecting switch (100) electrically connected between the input module (220) and the output module (230) and electrically connected to the controller (210). The disconnecting switch (100) includes a handle (10), an actuating mechanism (22), a contact mechanism (30), a first remote tripping mechanism (23A), and at least one second remote tripping mechanism (23B). The handle (10) is driven to open or close the circuit via the actuating mechanism (22) and the contact mechanism (30). The first remote tripping mechanism (23A) and the second remote tripping mechanism (23B) are used for... The controller (210) can trip individually according to different trip signals issued by the controller (210). After the first remote trip mechanism (23A) trips, it can be reset by the handle (10), while after the second remote trip mechanism (23B) trips, it cannot be reset by the handle (10). In the event of a fault, the controller (210) is used to classify the fault and issue a corresponding trip signal to control the first remote trip mechanism (23A) and / or the second remote trip mechanism (23B) to trip, thereby driving the action mechanism (22) to unlock, so that the contact mechanism (30) opens, thereby correspondingly cutting off the electrical connection between the input module (220) and the output module (230).

2. The power supply system according to claim 1, characterized in that, When the controller (210) determines that the current fault is a first-level fault, the controller (210) sends a first trip signal to control the first remote trip mechanism (23A) to trip.

3. The power supply system according to claim 2, characterized in that, When the controller (210) determines that the current fault is a second-level fault, and the severity of the second-level fault is greater than that of the first-level fault, the controller (210) issues a second trip signal to control the second remote trip mechanism (23B) to trip.

4. The power supply system according to claim 2, characterized in that, When the number of times the controller (210) issues the first trip signal exceeds the first preset threshold, the controller (210) issues a second trip signal to control the second remote trip mechanism (23B) to trip.

5. The power supply system according to claim 3, characterized in that, When the number of times the controller (210) issues the second trip signal exceeds the second preset threshold, the controller (210) issues the first trip signal and the second trip signal simultaneously, controlling the first remote trip mechanism (23A) and the second remote trip mechanism (23B) to trip simultaneously.

6. The power supply system according to claim 1, characterized in that, The isolating switch (100) has a first reset member and at least one second reset member slidably disposed inside the housing (21); wherein, the handle (10) is driven to be connected to the first reset member, and 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.

7. The power supply system according to claim 6, 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.

8. The power supply system according to claim 6, 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 actuation mechanism (22). When the trip unit (231) receives a tripping signal from the controller (210), 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).

9. The power supply system according to claim 8, characterized in that, The disconnect switch (100) 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 push 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 push part (241) is located on the side of the striking member (2312) away from the fixed part (2311). The push part (241) is used to drive the striking member (2312) to reset.

10. The power supply system according to claim 8, 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 release mechanism (23B) is released, 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 release mechanism (23B) is released, 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 issued by the controller (210) and slide out relative to the mounting part (271) according to the reset signal to drive the striking member (2312) to reset.

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