Power supply system

Abstract

The invention discloses a power supply system, and relates to the technical field of low-voltage apparatuses. The power supply system comprises a controller, an input module, an output module and an isolating switch, the disconnecting 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 be switched off or switched on through the action mechanism, and the first remote tripping mechanism and the second remote tripping mechanism are used for independently tripping according to different tripping signals sent by the controller. The first remote tripping mechanism can be reset through the handle, and the second remote tripping mechanism cannot be reset through the handle; and when a fault occurs, the controller is used for grading the fault and sending out a corresponding tripping signal, controlling the first remote tripping mechanism and / or the second remote tripping mechanism to trip, and driving the action mechanism to unlock, so that the contact mechanism is switched off. The power supply system can avoid the situation that when internal faults of the inverter still exist, the direct-current switch is manually switched on, and consequently fault diffusion is caused.

Description

Technical Field

[0001] The present application relates to the field of low-voltage electrical equipment technology, and in particular to a power supply system. Background Art

[0002] As photovoltaic power generation capacity continues to rise, photovoltaic inverters have become the mainstream power generation equipment in the photovoltaic industry. To ensure the stable operation of the power generation system in which the photovoltaic inverter is located, the photovoltaic inverter must prevent the spread of its own faults when an internal fault occurs.

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

[0004] For the above fault isolation solution, after the DC switch S1 is successfully opened, even if the internal fault of the inverter has not been eliminated, the maintenance personnel can still operate the operating handle of the DC switch S1 to close the DC switch S1 again, thereby expanding the inverter fault. Summary of the Invention

[0005] The purpose of the present application is to provide a power supply system that can prevent a fault from spreading due to manual closing of a DC switch when an internal fault of an inverter still exists.

[0006] The embodiment of the present application is implemented as follows:

[0007] In a first aspect of an embodiment of the present application, a power supply system is provided, comprising 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 comprises a handle, an actuating mechanism, a contact mechanism, a first remote tripping mechanism, and at least one second remote tripping mechanism, wherein the handle is driven to drive the contact mechanism to open or close via the actuating mechanism, the first remote tripping mechanism and the second remote tripping mechanism are configured to trip independently according to different tripping signals issued by the controller, the first remote tripping mechanism can be reset via the handle after tripping, and the second remote tripping mechanism cannot be reset via the handle after tripping; when a fault occurs, the controller is configured to classify the fault and issue a corresponding tripping signal, control the first remote tripping mechanism and / or the second remote tripping mechanism to trip, drive the actuating mechanism to unlock, thereby opening the contact mechanism and correspondingly cutting off the electrical connection between the input module and the output module. This power supply system can prevent the DC switch from being manually closed when an internal fault in the inverter still exists, causing the fault to spread.

[0008] As an implementable embodiment, when the controller determines that the current fault is a first-level fault, the controller sends a first tripping signal to control the first remote tripping mechanism to trip.

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

[0010] As an implementable embodiment, 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 an implementable embodiment, when the number of times the controller sends the second trip signal exceeds a second preset threshold, the controller simultaneously sends the first trip signal and the second trip signal to control the first remote trip mechanism and the second remote trip mechanism to trip simultaneously.

[0012] As an implementable embodiment, a first reset member and at least one second reset member are slidingly arranged in the housing of the disconnector; wherein, the handle is driven and connected to the first reset member, and the handle is driven to drive the first reset member to move, 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] As an implementation method, the first remote tripping mechanism and the second remote tripping mechanism are respectively arranged on the same side and / or opposite sides of the action mechanism, and the sliding direction of the first reset member and the sliding direction axis of the second reset member are parallel.

[0014] As an implementable embodiment, the first remote tripping mechanism and the second remote tripping mechanism both include a tripper and a driving member, the tripper includes a fixed part and a slidable striking member, the driving member is in contact with the action mechanism, and when the tripper receives a tripping signal from the controller, the striking member slides out relative to the fixed part and drives the action mechanism to unlock through the driving member.

[0015] As an implementable embodiment, the isolating switch also includes a transmission plate connected to the handle shaft hole, a first transmission part is provided on the transmission plate, the first reset member includes a slide plate, a second transmission part and a pushing part are provided on the slide plate, the first transmission part and the second transmission part cooperate with each other to drive the handle to be connected to the first reset member, the pushing part is provided on the side of the striking member away from the fixed part, and the pushing part is used to drive the striking member to reset.

[0016] As an embodiment, the second reset member includes a pressing member, a through hole is provided on the shell, and the pressing member is inserted into the through hole. When the second remote tripping mechanism is tripped, the pressing member protrudes from the surface of the shell; and / or, the second reset member includes a pressing member, a through hole is provided on the shell, and the pressing member is inserted into the through hole. When the second remote tripping mechanism is tripped, the pressing member does not protrude from the surface of the shell; and / or, the second reset member includes a mounting portion and a slidable pop-up member, and the pop-up member is used to receive a reset signal sent by the controller, and slide out relative to the mounting portion according to the reset signal to drive the striking member to reset.

[0017] The beneficial effects of the embodiments of the present 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 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 is driven to drive the contact mechanism to open or close the switch via the actuating mechanism. The first remote tripping mechanism and the second remote tripping mechanism are configured to trip independently according to different tripping signals issued by the controller. After tripping, the first remote tripping mechanism can be reset by the handle, while the second remote tripping mechanism cannot be reset by the handle. When a fault occurs, the controller is configured to classify the fault and issue a corresponding tripping signal, controlling the first remote tripping mechanism and / or the second remote tripping mechanism to trip, driving the actuating mechanism to unlock, thereby opening the contact mechanism and correspondingly severing the electrical connection between the input module and the output module. When a fault occurs in the power supply system, the controller first classifies the fault to determine the severity and type of the fault. Then, the controller issues a corresponding tripping signal based on the classification result. These tripping signals control the first remote tripping mechanism and / or the second remote tripping mechanism to trip. Once any of the remote trip mechanisms trips, it unlocks the actuator, causing the contact mechanism to open. This cuts the electrical connection between the input and output modules, preventing the fault from further affecting the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural diagram of a power supply system in the prior art;

[0021] Figure 2 A schematic diagram of the structure of the power supply system provided in an embodiment of the present application;

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

[0023] Figure 4 This is the second structural diagram of the isolating switch provided in the first embodiment of the present application;

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

[0025] Figure 6 This is the second structural diagram of the operating mechanism provided in the first embodiment of the present application;

[0026] Figure 7 This is the third structural diagram of the operating mechanism provided in the first embodiment of the present application;

[0027] Figure 8 A schematic diagram of the structure of the operating mechanism provided in the second embodiment of the present application;

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

[0029] Icons: 100-isolating switch; 10-handle; 20-operating mechanism; 21-housing; 22-acting mechanism; 23A-first remote tripping mechanism; 23B-second remote tripping mechanism; 231-tripper; 2311-fixing part; 2312-strike member; 232-driving member; 24-slide plate; 241-pushing part; 243-second transmission part; 25-pressing part; 26-transmission plate; 261-first transmission part; 271-installing part; 272-pop-up member; 30-contact mechanism; 200-power supply system; 210-controller; 220-input module; 230-output module. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0031] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of the application is usually placed when in use. These are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. Terms such as "first", "second", and "third" are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0032] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections, indirect connections through an intermediate medium, or connections within two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] Please refer to Figures 2 to 9The embodiment of the present 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 action 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 contact mechanism 30 through the action mechanism 22, the first remote tripping mechanism 23A and the second remote tripping mechanism 23B The tripping mechanism 23B is configured to trip independently based on different tripping signals issued by the controller 210. The first remote tripping mechanism 23A can be reset via the handle 10 after tripping, while the second remote tripping mechanism 23B cannot be reset via the handle 10 after tripping. In the event of a fault, the controller 210 is configured to classify the fault and issue a corresponding tripping signal, causing the first remote tripping mechanism 23A and / or the second remote tripping mechanism 23B to trip, thereby unlocking the actuating mechanism 22 and opening the contact mechanism 30, thereby severing the electrical connection between the input module 220 and the output module 230. This power supply system 200 prevents the spread of faults caused by manual closing of the DC switch while an internal inverter fault persists.

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

[0035] Specifically, if Figure 3 and Figure 4As shown, the above-mentioned disconnector 100 includes a handle 10, an operating mechanism 20 and a contact mechanism 30, which are stacked in sequence along the axial direction of the handle 10, wherein the operating mechanism 20 includes an action mechanism 22, a first remote tripping mechanism 23A and at least one second remote tripping mechanism 23B. The handle 10 is driven and connected to the contact mechanism 30 through the action mechanism 22. The handle 10 is driven to drive the contact mechanism 30 to open or close through the action mechanism 22, so that the circuit in which it is located can be disconnected or connected through the disconnector 100; the first remote tripping mechanism 23A and the second remote tripping mechanism 23B can both act on the action mechanism 22, so that after any remote tripping mechanism receives a tripping signal from the controller 210, it can drive the action mechanism 22 to unlock, thereby opening the contact mechanism 30, and 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 receive trip signals from the controller 210. However, the trip 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 independently trip, unlocking the actuating mechanism 22 and opening the contact mechanism 30. 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 to determine its severity and type. Based on the graded results, the controller 210 then issues a corresponding trip signal. These trip signals control the first remote trip mechanism 23A and / or the second remote trip mechanism 23B to trip. Once either remote trip mechanism trips, it unlocks the actuator 22, which in turn causes the contact mechanism 30 to open. This disconnects the electrical connection between the input module 220 and the output module 230, preventing the fault from further impacting the entire system.

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

[0039] For example, when the controller 210 determines that the current fault is a second-level fault (or a complex fault), since the severity of the second-level fault is greater than the severity of the first-level fault, the controller 210 will send a second trip signal. After the second remote trip mechanism 23B receives the second trip signal, it can trip according to the second trip signal, driving the action mechanism 22 to unlock, thereby driving the contact mechanism 30 to open; when the fault is eliminated, the operator can only use other methods other than driving the handle 10 to reset the second remote trip mechanism 23B, so that the action mechanism 22 is re-tripped.

[0040] In addition, the controller 210 is also 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 sends the first trip signal exceeds a first preset threshold value pre-set in the controller 210, this means that the first-level fault is occurring frequently and the situation may be gradually worsening. In order to more effectively control the fault, the controller 210 will then send a second trip signal to control the second remote trip mechanism 23B to trip, taking a more powerful measure to deal with the fault. After the fault is eliminated, the operator can only use other methods other than actuation by the handle 10 to reset the second remote trip mechanism 23B, causing the action mechanism 22 to re-engage.

[0041] For example, when the number of times the controller 210 sends out the second trip signal exceeds the second preset threshold value pre-set in the controller 210, this means that the second-level fault occurs frequently and the degree of harm caused by the fault is extremely high. In this emergency situation, the controller 210 will simultaneously send out the first trip signal and the second trip signal. These two trip signals will respectively control the first remote trip mechanism 23A and the second remote trip mechanism 23B to trip at the same time. Through the double insurance method, the contact mechanism 30 can be quickly opened, 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; when the fault is eliminated, 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 method, a first reset member and at least one second reset member are slidably disposed within the housing 21 of the disconnector 100. The handle 10 is drivably connected to the first reset member, and 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 drive-connected to the first reset member, which means that when the operator applies an external force to the handle 10 to cause it to move, 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 due to 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 disconnector 100. During this sliding process, the first reset member will exert a pushing effect on the first remote tripping mechanism 23A, causing the first remote tripping mechanism 23A to return to its initial state when it was not tripped, thereby allowing the first remote tripping mechanism 23A to respond normally to subsequent first tripping signals again.

[0044] The provision of the first reset element allows disconnector 100 to quickly restore some functionality after a fault trip. When a primary fault occurs, first remote trip mechanism 23A trips, disconnecting the circuit. Once the fault is resolved, the operator can quickly reset first remote trip mechanism 23A using handle 10, restoring normal circuit opening and closing control without waiting for complex maintenance procedures, thereby improving the efficiency of troubleshooting for power supply system 200.

[0045] The second reset element functions to reset the second remote trip mechanism 23B. Unlike the first reset element, it is not directly driven by the handle 10. To reset the second remote trip mechanism 23B, a driving force is applied to the second reset element through other specific means, causing it to slide within the housing 21. During this sliding process, the second reset element pushes the second remote trip mechanism 23B, restoring it to its initial state.

[0046] The provision of a second reset element ensures that the second remote tripping mechanism 23B can resume normal operation even after tripping. Although the second remote tripping mechanism 23B responds to a severe fault and cannot be simply manually reset after tripping, the second reset element provides a reset path for the second remote tripping mechanism 23B. This ensures that the disconnector 100 remains fully functional after 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 caused by faults in the disconnector 100.

[0047] As an implementable method, Figure 5 and Figure 9 As shown, the first remote tripping mechanism 23A and the second remote tripping mechanism 23B are respectively arranged on the same side and / or opposite sides of the action mechanism 22, and the sliding direction of the first reset member and the sliding direction axis of the second reset member are parallel.

[0048] For example, Figure 5 As shown, in some embodiments, the number of the first remote tripping mechanism 23A and the second remote tripping mechanism 23B are both one, and the first remote tripping mechanism 23A and the second remote tripping mechanism 23B are respectively arranged on opposite sides of the action mechanism 22; or, as shown in FIG. Figure 9 As shown, in other 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 disposed on the same side of the actuating mechanism 22, while the other second remote tripping mechanism 23B is disposed on the other side of the actuating mechanism 22. Layout of multiple remote tripping mechanisms on the same side facilitates structural simplification and reduces the complexity of internal wiring and connections. Layout of multiple remote tripping mechanisms on opposite sides enhances the stability of unlocking the actuating mechanism 22. Based on different application scenarios and performance requirements, a suitable layout can be selected to improve the overall reliability and performance of the disconnector 100.

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

[0050] As an implementable method, Figures 6 to 8As shown, the first remote tripping mechanism 23A and the second remote tripping mechanism 23B both include a tripper 231 and a driving member 232. The tripper 231 includes a fixed portion 2311 and a slidable striking member 2312. The driving member 232 is in contact with the action mechanism 22. When the tripper 231 receives a tripping signal from the controller 210, the striking member 2312 slides out relative to the fixed portion 2311 and drives the action mechanism 22 to unlock through the driving 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 identical. For example, the first remote tripping mechanism 23A and the second remote tripping mechanism 23B each include a tripper 231 and a driver 232. The tripper 231 includes a fixed portion 2311 and a slidable striking member 2312. The fixed portion 2311 provides stable support and guidance for the striking member 2312, ensuring that the striking member 2312 can accurately slide and strike and effectively transmit force to the driver 232. Furthermore, the contact between the driver 232 and the action mechanism 22 ensures stable force transmission, making the tripping action more reliable and reducing the risk of malfunction or tripping failure.

[0052] For example, in some embodiments, the actuating mechanism 22 may include a release member, a locking plate, and a tripping member, or, in other embodiments, the actuating mechanism 22 may include a lever, a spring, and a pawl. The actuating mechanism 22 shown in the drawings of this application is merely illustrative and is not intended to limit the actual structure of the actuating mechanism 22. Regarding the specific principles and working process of the actuating mechanism 22 moving relative to the housing 21 in a preset direction to achieve unlocking, thereby driving the contact mechanism 30 from closing to opening, those skilled in the art should be able to understand this by referring to the tripping process of the disconnector 100 in the prior art, and will not be described in detail here.

[0053] As an implementable method, Figures 5 to 9 As shown, the isolating switch 100 also includes a transmission plate 26 connected to the axial hole of the handle 10, and a first transmission part 261 is provided on the transmission plate 26. The first reset member includes a slide plate 24, and a second transmission part 243 and a pushing part 241 are provided on the slide plate 24. The first transmission part 261 and the second transmission part 243 cooperate with each other to drive the handle 10 to be connected 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, and the pushing part 241 is used to drive the striking member 2312 to reset.

[0054] It should be noted that to ensure that the disconnector 100 can trip upon the next fault, after the first remote trip mechanism 23A trips, it must be reset. Specifically, the striking member 2312 must be able to slide and retract relative to the fixed portion 2311. To this end, a first transmission portion 261 is provided on the transmission plate 26, and a corresponding second transmission portion 243 is provided on the slide plate 24. The first transmission portion 261 and the second transmission portion 243 cooperate to form a driving connection between the handle 10 and the first reset member. When the handle 10 is driven to rotate, the transmission plate 26 is connected to the axial hole of the handle 10, so the handle 10 can drive the transmission plate 26 to rotate. The first transmission portion 261 on the transmission plate 26 interacts with the second transmission portion 243 on the slide plate 24 to convert the rotational motion of the handle 10 into linear motion of the slide plate 24. The slide plate 24 is also provided with a pushing portion 241, which is located on the side of the striking member 2312 facing away from the fixed portion 2311. After the first remote tripping mechanism 23A completes the tripping action, the striking member 2312 is in a state of being out of the initial position. At this time, the operator turns the handle 10, and the handle 10 drives the slide plate 24 to slide through the transmission plate 26, and the pushing portion 241 on the slide plate 24 moves with the slide plate 24. When the pushing portion 241 moves to contact the striking member 2312, it applies a thrust to the striking member 2312, driving the striking member 2312 to slide toward the fixed portion 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 portion 261 is a connecting hole, and the second transmission portion 243 is a connecting column. The connecting column is accommodated in the connecting hole so that the handle 10 can drive the slide plate 24 to slide relative to the housing 21.

[0055] As an embodiment, the second reset member includes a pressing member 25, a through hole is provided on the shell 21, and the pressing member 25 is inserted into the through hole. When the second remote tripping mechanism 23B is tripped, the pressing member 25 protrudes from the surface of the shell 21; and / or, the second reset member includes a pressing member 25, a through hole is provided on the shell 21, and the pressing member 25 is inserted into the through hole. When the second remote tripping mechanism 23B is tripped, the pressing member 25 does not protrude from the surface of the shell 21; and / or, the second reset member includes a mounting portion 271 and a slidable pop-up member 272, the pop-up member 272 is used to receive a reset signal sent by the controller 210, and slide out relative to the mounting portion 271 according to the reset signal to drive the striking member 2312 to reset.

[0056] It should be noted that to ensure that the disconnector 100 can trip upon the next fault, the second remote tripping mechanism 23B must also be reset after it trips. Specifically, the striking member 2312 must be able to slide and retract relative to the fixed portion 2311. To this end, the second reset member includes a pressing member 25, which is disposed within a through-hole provided in the housing 21. For example, in some embodiments, when the second remote tripping mechanism 23B trips upon receiving a second tripping signal from the controller 210, the pressing member 25 may protrude from the surface of the housing 21. This design allows the operator to intuitively see that the second remote tripping mechanism 23B has tripped, providing a clear fault indication. The operator can conveniently apply an 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 other 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 may not protrude from the surface of the housing 21. For example, when the striking member 2312 slides to the maximum stroke relative to the fixing portion 2311 (or the pressing member 25 moves to the maximum stroke), the end of the pressing member 25 away from the striking member 2312 is still located in the through hole or is just flush with the surface of the housing 21. At this time, the operator can use a tool to apply an external force to the pressing member 25 to drive the striking member 2312 to slide and reset toward the side close to the fixing portion 2311 through the pressing member 25; and / or, as Figure 8 As shown, in other embodiments, the second reset member includes a mounting portion 271 and a slidable pop-up member 272, and the pop-up member 272 is used to receive a reset signal issued by the power supply system 200, and slide out relative to the mounting portion 271 according to the reset signal to drive the striking member 2312 to reset, so that the pop-up member 272 can 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 remotely reset.

[0058] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

Claims

1. A power supply system, characterized in that: The invention relates to a circuit breaker comprising 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) comprises a handle (10), an action 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 drive the contact mechanism (30) to open or close via the action mechanism (22); the first remote tripping mechanism (23A) and the second remote tripping mechanism (23B) are used to disconnect or disconnect the circuit breaker; The first remote tripping mechanism (23A) can be reset by the handle (10) after tripping, and the second remote tripping mechanism (23B) cannot be reset by the handle (10) after tripping; when a fault occurs, the controller (210) is used to classify the fault and send a corresponding tripping signal to control the first remote tripping mechanism (23A) and / or the second remote tripping mechanism (23B) to trip, thereby driving the action mechanism (22) to unlock, so as to open the contact mechanism (30) and correspondingly cut 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 tripping signal to control the first remote tripping 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 the severity of the first-level fault, the controller (210) sends a second tripping signal to control the second remote tripping 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 a first tripping signal exceeds a first preset threshold, the controller (210) issues a second tripping signal to control the second remote tripping 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 a second preset threshold, the controller (210) simultaneously issues the first trip signal and the second trip signal, 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: A first reset member and at least one second reset member are slidably provided in the housing (21) of the isolating switch (100); wherein the handle (10) is drive-connected to the first reset member, and the handle (10) is driven to drive the first reset member to move, so that the first reset member drives the first remote tripping mechanism (23A) to reset; and 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 arranged on the same side and / or opposite sides of the action mechanism (22), and the sliding direction 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: The first remote tripping mechanism (23A) and the second remote tripping mechanism (23B) both comprise a tripper (231) and a driving member (232); the tripper (231) comprises a fixed portion (2311) and a slidable striking member (2312); the driving member (232) is in contact with the action mechanism (22); when the tripper (231) receives a tripping signal from the controller (210), the striking member (2312) slides and strikes relative to the fixed portion (2311), and drives the action mechanism (22) to be unlocked through the driving member (232).

9. The power supply system according to claim 8, characterized in that: The isolating switch (100) further comprises a transmission plate (26) connected to the shaft hole of the handle (10), a first transmission portion (261) being provided on the transmission plate (26), the first reset member comprising a slide plate (24), a second transmission portion (243) and a pushing portion (241) being provided on the slide plate (24), the first transmission portion (261) and the second transmission portion (243) cooperating with each other to drive the handle (10) to be connected to the first reset member, the pushing portion (241) being provided on a side of the striking member (2312) away from the fixing portion (2311), and the pushing portion (241) being 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), a through hole is provided on the housing (21), the pressing member (25) is inserted into the through hole, and when the second remote tripping mechanism (23B) is tripped, the pressing member (25) protrudes from the surface of the housing (21); and / or, the second reset member includes a pressing member (25), a through hole is provided on the housing (21), the pressing member (25) is inserted into the through hole, and when the second remote tripping mechanism (23B) is tripped, the pressing member (25) does not protrude from the surface of the housing (21); and / or, the second reset member includes a mounting portion (271) and a slidable pop-up member (272), the pop-up member (272) is used to receive a reset signal sent by the controller (210), and slide relative to the mounting portion (271) according to the reset signal to drive the striking member (2312) to reset.

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