A disconnector, a power conversion device, and a power supply system

Abstract

The utility model provides a kind of isolator, power conversion device and power supply system, it is related to electrical equipment technical field.Isolator includes installation shell and the lock catch component being set in installation shell, handle component, first drive mechanism and second drive mechanism.Lock catch component is used to be connected with contact component transmission, handle component is movably set in installation shell, first drive mechanism can make operating mechanism trip out;Second drive mechanism is set in installation shell, second drive mechanism cannot make operating mechanism trip out, second drive mechanism is used to lock handle component, or, second drive mechanism is used to make handle component and first drive component remove transmission cooperation.Isolator is provided with double protection by first drive mechanism and second drive mechanism, and can adapt to different circuit fault scene, effectively improve the adaptability of isolator, to ensure the stability and reliability of power supply system.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to a disconnecting switch, a power conversion device, and a power supply system. Background Technology

[0002] In power systems, disconnect switches are important electrical devices primarily used to promptly disconnect circuits in the event of circuit faults or other abnormal conditions, thereby ensuring the safe operation of the entire circuit system. Through their built-in drive mechanism, disconnect switches can quickly respond and perform circuit-breaking operations, effectively preventing the spread of faults and protecting the safety of equipment and personnel.

[0003] However, existing disconnect switches have a simple structure and cannot effectively cope with complex circuit faults. In addition, after the circuit breaking operation is completed, the inspection and repositioning process is cumbersome and time-consuming, which increases maintenance costs and affects the stability and reliability of power supply. Utility Model Content

[0004] This invention provides a disconnecting switch, a power conversion device, and a power supply system, which can adapt to different circuit fault scenarios, effectively improving the adaptability of the disconnecting switch and thus ensuring the stability and reliability of the power supply system. In addition, the drive mechanism reset process is efficient and convenient, improving the operating efficiency of the disconnecting switch.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a disconnecting switch, which includes a handle, an operating mechanism, and multiple switching units. The handle can drive the operating mechanism to move, thereby closing or opening the multiple switching units. The operating mechanism includes:

[0007] Mounting housing;

[0008] A locking assembly is disposed on the mounting housing and is used for transmission connection with the contact assembly to drive the contact assembly to close or open the circuit.

[0009] A handle assembly is movably disposed on the mounting housing, and the handle assembly can drive the locking assembly to move so as to close or open the contact assembly;

[0010] A first driving mechanism is fixedly disposed on the mounting housing. The first driving mechanism is in transmission cooperation with the handle assembly and is used to reset under the drive of the handle assembly and drive the locking assembly to lock again, or to drive the locking assembly to disengage so that the contact assembly opens.

[0011] The second drive mechanism is fixedly disposed on the mounting housing. The second drive mechanism cannot disengage the locking assembly. The second drive mechanism is used to lock the handle assembly, or the second drive mechanism is used to disengage the handle assembly from the first drive mechanism.

[0012] In an optional embodiment, the handle assembly includes a handle rod and a slide plate, the handle rod being motive-connected to the slide plate, and the slide plate being provided with an extension;

[0013] The first driving mechanism includes a first driving component and a transmission component. The first driving component is fixedly disposed on the mounting housing and is used to drive the transmission component to move so as to disengage the locking assembly.

[0014] The extension is located in the extension direction of the movement path of the transmission member. When the first drive mechanism receives a signal to disengage the locking assembly, the extension is used to drive the transmission member to move in the opposite direction under the drive of the slide plate, so that the transmission member drives the locking assembly to re-lock and reset the first drive member.

[0015] In an optional embodiment, the first driving mechanism includes a first driving member and a transmission member, wherein the first driving member is fixedly disposed on the mounting housing;

[0016] The first driving member is used to drive the transmission member to move so as to disengage the locking assembly; and after disengagement, the transmission member can automatically reset to the initial state.

[0017] In an optional embodiment, the second driving mechanism includes a second driving member, a driving rod, and a holding member;

[0018] The retaining member is movably disposed on the mounting housing, the driving rod is in transmission engagement with the retaining member, and the second driving member is used to drive the driving rod to move so that the retaining member is engaged with the handle assembly;

[0019] The drive rod is provided with a first reset part, which extends out of the mounting housing and is used to drive the drive rod to move in the opposite direction under the action of external force to reset to the initial state, so as to disengage the retaining member from the handle assembly.

[0020] In an optional embodiment, the second driving mechanism includes a second driving member, a driving rod, and a holding member;

[0021] The retaining member is movably disposed on the mounting housing. The driving rod is in transmission engagement with the retaining member. The second driving member is used to drive the driving rod to move so that the retaining member is engaged with the handle assembly. Alternatively, when the first driving mechanism drives the locking assembly to disengage, the second driving member is also used to receive an external reset signal to drive the driving rod to move in the opposite direction to reset to the initial state so that the retaining member is disengaged from the handle assembly.

[0022] In an optional embodiment, the second drive mechanism further includes a first elastic element, the drive rod is provided with a first abutting portion, the holding member is provided with a second abutting portion, and the slide plate of the handle assembly is provided with a slot;

[0023] When the second driving member is in the initial state, the first abutting part abuts against the second abutting part, and the first elastic member is in a compressed state and disposed between the mounting housing and the retaining member;

[0024] The second driving member drives the driving rod to move, so that the first abutting part disengages from the second abutting part, and so that the retaining member moves toward the handle assembly and is inserted into the slot under the action of the first elastic member.

[0025] In an optional embodiment, the second drive mechanism further includes a second drive member, a drive rod, and a reset member. The second drive member is fixedly disposed on the mounting housing, and the reset member is movably disposed on the slide plate of the handle assembly.

[0026] When the second drive mechanism is in its initial state, the reset member is located in the extension direction of the movement path of the first drive mechanism, so that the first drive mechanism can be reset under the drive of the handle assembly and drive the locking assembly to lock again;

[0027] The second driving member is used to drive the driving rod to move, so as to drive the reset member away from the extension direction of the movement path of the first driving mechanism, so as to disengage the handle assembly from the first driving mechanism;

[0028] The drive rod is provided with a second reset part, which extends out of the mounting housing and is used to drive the drive rod to move in the opposite direction under the action of external force to reset to the initial state.

[0029] In an optional implementation, when the second drive mechanism is in its initial state, the first drive mechanism is in transmission engagement with the handle assembly;

[0030] The second drive mechanism is used to disengage the handle assembly from the first drive mechanism; or after the first drive mechanism drives the locking assembly to disengage, the second drive mechanism is also used to receive an external reset signal to reset to the initial state.

[0031] In an optional embodiment, the second drive mechanism includes a second drive member, a drive rod, and a reset member. The second drive member is fixedly disposed on the mounting housing, and the reset member is movably disposed on the slide plate of the handle assembly.

[0032] When the second drive mechanism is in its initial state, the reset member is located in the extension direction of the movement path of the first drive mechanism, so that the first drive mechanism can be reset under the drive of the handle assembly and drive the locking assembly to lock again;

[0033] The second driving member is used to drive the driving rod to move, so as to move the reset member away from the extension direction of the movement path of the first driving mechanism, so as to disengage the handle assembly from the first driving mechanism; or when the first driving mechanism drives the locking assembly to disengage, the second driving member is also used to receive an external reset signal to drive the driving rod to move in the opposite direction to reset to the initial state.

[0034] In an optional embodiment, the second driving mechanism further includes a second elastic element, the driving rod is provided with a third abutting portion, and the reset element is provided with a fourth abutting portion;

[0035] In the initial state of the second drive mechanism, the third abutting part abuts against the fourth abutting part, and the second elastic member is compressed and disposed between the fourth abutting part and the slide plate of the handle assembly;

[0036] The second driving member is used to drive the driving rod to move, so that the third abutting part disengages from the fourth abutting part, and so that the reset member moves away from the extension direction of the movement path of the first driving mechanism under the action of the second elastic member.

[0037] Secondly, this utility model provides a power conversion device, including a chassis, a control unit, and an isolating switch as described in any of the foregoing embodiments; the handle is exposed outside the chassis for user operation, and the reset button is located inside the chassis; the control unit is electrically connected to the first drive mechanism and the second drive mechanism, and is used to send a trip signal to the first drive mechanism and / or the second drive mechanism when a line fault occurs.

[0038] Thirdly, this utility model provides a power supply system, including a power conversion device and a control unit as described in any of the foregoing embodiments, wherein the control unit is independent of the power conversion device, the disconnecting switch is installed in the power conversion device, and the handle is exposed outside the power conversion device; the control unit is electrically connected to the first drive mechanism and the second drive mechanism through the power conversion device, and is used to send a trip signal to the first drive mechanism and / or the second drive mechanism when a line fault occurs.

[0039] The beneficial effects of the disconnecting switch, power conversion device, and power supply system provided by this utility model embodiment include: providing dual protection for the disconnecting switch through the first drive mechanism and the second drive mechanism, and being able to adapt to different circuit fault scenarios, effectively improving the adaptability of the disconnecting switch, thereby ensuring the stability and reliability of the power supply system; in addition, the reset process of the drive mechanism is efficient and convenient, improving the operating efficiency of the disconnecting switch. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A schematic diagram of the disconnector switch structure provided in an embodiment of this utility model;

[0042] Figure 2 An exploded view of the first embodiment of the disconnecting switch provided in this utility model;

[0043] Figure 3 A partial structural schematic diagram of the disconnector switch provided in the first embodiment of this utility model;

[0044] Figure 4 A cross-sectional view of a first embodiment of the disconnecting switch provided in this utility model;

[0045] Figure 5 A schematic diagram of the structure of the second drive mechanism in the first embodiment provided by this utility model;

[0046] Figure 6 An exploded view of a second embodiment of the disconnecting switch provided in this utility model;

[0047] Figure 7 This is a schematic diagram of the first state of the second embodiment of the disconnecting switch provided in this utility model.

[0048] Figure 8 This is a schematic diagram of the second state of the second embodiment of the disconnecting switch provided in this utility model.

[0049] Icons: 10-Disconnect switch; 100-Mounting housing; 200-Lock assembly; 300-Handle assembly; 310-Slide plate; 311-Extension; 312-Slot; 320-Handle lever; 400-First drive mechanism; 410-First drive member; 420-Transmission member; 421-First actuating part; 422-Connecting part; 423-Second actuating part; 500-Second drive mechanism; 510-Second drive member; 520-Drive rod; 521-First reset part; 522-Second reset part; 523-First abutting part; 524-Third abutting part; 530-Holding member; 531-Second abutting part; 540-First elastic member; 550-Reset member; 551-Fourth abutting part; 560-Second elastic member. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0052] 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.

[0053] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0054] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0055] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0056] In power systems, disconnect switches are important electrical devices primarily used to promptly disconnect circuits in the event of circuit faults or other abnormal conditions, thereby ensuring the safe operation of the entire circuit system. Through their built-in drive mechanism, disconnect switches can quickly respond and perform circuit-breaking operations, effectively preventing the spread of faults and protecting the safety of equipment and personnel.

[0057] However, existing disconnect switches have a simple structure and cannot effectively cope with complex circuit faults. In addition, after the circuit breaking operation is completed, the inspection and repositioning process is cumbersome and time-consuming, which increases maintenance costs and affects the stability and reliability of power supply.

[0058] Based on the problems existing in the current technology, please refer to Figures 1 to 8 This utility model provides a disconnecting switch 10, which is applied to power supply systems and is particularly suitable for equipment such as power conversion devices. The disconnecting switch 10 provided by this utility model can adapt to different circuit fault scenarios, effectively improving the adaptability of the disconnecting switch 10, thereby ensuring the stability and reliability of the power supply system; in addition, the reset process of the drive mechanism is efficient and convenient, improving the operating efficiency of the disconnecting switch 10.

[0059] In this embodiment, the disconnecting switch includes a handle, an operating mechanism, and multiple switching units. The handle can drive the operating mechanism to move so that the multiple switching units are closed or opened. The switching unit includes a contact assembly.

[0060] For details, please refer to Figures 1 to 5 The operating mechanism includes a mounting housing 100 and a locking assembly 200, a handle assembly 300, a first drive mechanism 400, and a second drive mechanism 500 disposed within the mounting housing 100.

[0061] The latching assembly 200 is used for transmission connection with the contact assembly, so as to drive the contact assembly to open in the tripped state.

[0062] The handle assembly 300 is movably disposed on the mounting housing 100. The handle assembly 300 is in transmission engagement with the first drive mechanism 400. Therefore, the first drive mechanism 400 can drive the locking assembly 200 to re-lock under the drive of the handle assembly 300, so as to close the contact assembly. The first drive mechanism 400 can also directly drive the locking assembly 200 to disengage, so as to open the contact assembly. The second drive mechanism 500 is disposed on the mounting housing 100. The second drive mechanism 500 is used to lock the handle assembly 300, or to disengage the handle assembly 300 from the first drive mechanism 400.

[0063] It is understood that the first drive mechanism 400 has two working states: the initial state and the start-up state. After receiving an actuation signal of a simple fault, the first drive mechanism 400 switches from the initial state to the start-up state. At this time, the first drive mechanism 400 synchronously drives the latching mechanism to disengage, and thereby drives the contact assembly from the closed state to the open state through the latching mechanism, thus realizing the timely disconnection of the circuit and ensuring the safe operation of the power supply system.

[0064] It is understood that the first drive mechanism 400 and the handle assembly 300 can be selectively coupled, that is, the first drive mechanism 400 can be coupled with the handle assembly 300, or the two may not have a drive connection relationship.

[0065] Specifically, when the first drive mechanism 400 is in transmission cooperation with the handle assembly 300 and the first drive mechanism 400 is in the start state, the handle assembly 300 is driven to move by external force. While the handle assembly 300 drives the locking assembly 200 to lock again, it can also drive the first drive mechanism 400 to reset from the start state to the initial state, thereby simplifying the reset operation of the first drive mechanism 400.

[0066] When there is no transmission connection between the first drive mechanism 400 and the handle assembly 300, and the first drive mechanism 400 is in the start state, a complex fault actuation signal can be sent to the second drive mechanism 500 to lock the handle assembly 300 to prevent it from moving. At this time, the handle assembly 300 cannot drive the contact assembly to close the circuit, so that the handle assembly 300 will be unlocked after the complex fault is cleared, thereby further improving the safety performance of the disconnecting switch 10.

[0067] Alternatively, when the first drive mechanism 400 is in a transmission engagement with the handle assembly 300 and the first drive mechanism 400 is in the activated state, after sending a complex fault actuation signal to the second drive mechanism 500, the second drive mechanism 500 can disengage the transmission engagement between the handle assembly 300 and the first drive mechanism 400. In this case, even if the handle assembly 300 is rotated, the first drive mechanism 400 cannot be reset, and the locking assembly 200 cannot be locked again, thus further improving the safety performance of the disconnect switch 10.

[0068] Therefore, the disconnect switch 10 provided by this utility model provides dual protection for the disconnect switch 10 through the first drive mechanism 400 and the second drive mechanism 500, and can adapt to different circuit fault scenarios, effectively improving the adaptability of the disconnect switch 10, thereby ensuring the stability and reliability of the power supply system; in addition, the reset process of the drive mechanism is efficient and convenient, improving the operating efficiency of the disconnect switch 10.

[0069] Furthermore, the handle assembly 300 includes a handle rod 320 and a slide plate 310, with the handle rod 320 being throttle-connected to the slide plate 310, and the slide plate 310 having an extension 311. It can be understood that the handle rod 320 is connected to the handle, and by externally turning the handle to move the handle rod 320, the slide plate 310 can be slid relative to the mounting housing 100.

[0070] The first drive mechanism 400 includes a first drive member 410 and a transmission member 420. The first drive member 410 is fixedly disposed on the mounting housing 100 and is used to drive the transmission member 420 to move so as to disengage the latching assembly 200, and then drive the contact assembly to open through the latching assembly 200.

[0071] Specifically, after the first drive unit 410 receives the actuation signal of a simple fault, the first drive unit 410 changes from the initial state to the start state. The output end of the first drive unit 410 extends and drives the transmission unit 420 to move. In this way, the transmission unit 420 drives the latching assembly 200 to disengage, and then the latching assembly 200 drives the contact assembly to open.

[0072] The extension 311 is located in the extension direction of the movement path of the transmission member 420. The extension 311 is used to drive the transmission member 420 to move in the opposite direction under the drive of the slide plate 310, so that the transmission member 420 drives the locking assembly 200 to lock again and reset the first driving member 410.

[0073] Therefore, after troubleshooting and resolving the fault, the sliding plate 310 can be slid by turning the handle 320, and the extension 311 abuts against the transmission component 420 and drives the transmission component 420 to move in the opposite direction. This allows the transmission component 420 to drive the locking mechanism to lock again, thereby closing the contact assembly. Simultaneously, the output end of the first drive component 410 is retracted through the transmission component 420 to reset to the initial state.

[0074] In other words, after the first drive mechanism 400 is started, it can be reset by manually turning the knob handle assembly 300, and simultaneously drive the locking assembly 200 to lock again.

[0075] Of course, in other embodiments of this utility model, the system can also be reset by automatic reset, thereby enabling remote operation.

[0076] Specifically, the first driving member 410 drives the transmission member 420 to move, thereby disengaging the locking assembly 200. After the locking assembly 200 is disengaged, the transmission member 420 can automatically reset to its initial state. Optionally, a reset elastic member can be provided at the transmission member 420, so that after the locking assembly 200 is disengaged, the reset elastic member drives the transmission member 420 to move in the opposite direction, thereby re-engaging the locking assembly 200 and resetting the first driving member 410.

[0077] It is worth mentioning that the transmission component 420 includes a first actuation part 421, a connecting part 422, and a second actuation part 423 connected in sequence. The first actuation part 421 is connected to the output end of the first drive component 410. The extension part 311 is located in the extension direction of the movement path of the first actuation part 421. That is to say, the extension part 311 can abut against the first actuation part 421 and drive it to move in the opposite direction under the drive of the slide plate 310, so as to reset the first drive component 410 and drive the connecting part 422 and the second actuation part 423 to move in the same direction, so that the second actuation part 423 abuts against the locking assembly 200, and finally drives the locking assembly 200 to lock again.

[0078] Furthermore, the second drive mechanism 500 includes a second drive member 510, a drive rod 520, and a retaining member 530.

[0079] The retaining member 530 is movably disposed in the mounting housing 100. The drive rod 520 is in transmission engagement with the retaining member 530. The second drive member 510 is used to drive the drive rod 520 to move so that the retaining member 530 is engaged with the handle assembly 300.

[0080] As can be seen, after the second drive unit 510 receives the actuation signal of the complex fault, the second drive unit 510 can drive the drive rod 520 to extend, and the drive rod 520 can drive the clamping member 530 to engage with the slide plate 310 of the handle assembly 300, thereby locking the slide plate 310.

[0081] The drive rod 520 is provided with a first reset part 521, which extends out of the housing and is used to drive the drive rod 520 to move in the opposite direction relative to the second drive member 510 under the action of external force to reset to the initial state, so that the retaining member 530 is disengaged from the handle assembly 300.

[0082] In other words, after the second drive mechanism 500 is started, it can be reset by manually moving the first reset part 521 to retract the drive rod 520 to the first drive member 410.

[0083] Of course, in other embodiments of this utility model, the system can also be reset by automatic reset, thereby enabling remote operation.

[0084] Specifically, the second drive member 510 drives the drive rod 520 to extend so that the retaining member 530 engages with the handle assembly 300; when the first drive mechanism 400 drives the locking assembly 200 to disengage, the second drive member 510 can also drive the drive rod 520 to move in the opposite direction to retract after receiving an external reset signal, so as to reset to the initial state and disengage the retaining member 530 from the handle assembly 300.

[0085] Furthermore, the second drive mechanism 500 also includes a first elastic member 540, a drive rod 520 having a first abutting part 523, a retaining member 530 having a second abutting part 531, and a sliding plate 310 of the handle assembly 300 having a slot 312.

[0086] When the second drive member 510 is in its initial state, that is, when the drive rod 520 is retracted relative to the second drive member 510, the first abutting part 523 abuts against the second abutting part 531, and the first elastic member 540 is compressed and disposed between the mounting housing 100 and the retaining member 530.

[0087] After the second drive member 510 receives the actuation signal of a complex fault, the second drive member 510 drives the drive rod 520 to extend so that the first abutment part 523 disengages from the second abutment part 531. At this time, the retaining member 530 moves toward the handle assembly 300 and is inserted into the slot 312 under the action of the first elastic member 540, thereby realizing the retaining member 530 and the slide plate 310 in a retaining engagement, thereby locking the slide plate 310.

[0088] The drive rod 520 can move back to the initial state under the driving force of the second drive member 510, or move back to the initial state under the action of an external force on the first reset part 521.

[0089] It is understood that the second drive mechanism 500 described above can lock the handle assembly 300 after receiving an actuation signal of a complex fault, thereby ensuring that the contact assembly cannot be driven to close the circuit in this state through the handle assembly 300; of course, in other embodiments of this utility model, the above effect can also be achieved in other ways.

[0090] That is, when the second drive mechanism 500 is in the initial state, the first drive mechanism 400 is in a transmission engagement with the handle assembly 300; the second drive mechanism 500 can disengage the handle assembly 300 from the first drive mechanism 400; or after the first drive mechanism 400 drives the locking assembly 200 to disengage, the second drive member 510 can automatically reset to the initial state after receiving an external reset signal.

[0091] Specifically, please refer to Figures 6 to 8 The second drive mechanism 500 also includes a reset member 550, which is movably disposed on the slide plate 310 of the handle assembly 300.

[0092] In detail, the reset member 550 is rod-shaped and slidably inserted through the slide plate 310. One end of the reset member 550 extends to the first drive mechanism 400, and the other end abuts against the drive rod 520 of the second drive mechanism 500.

[0093] like Figure 7 As shown, in the initial state of the second drive mechanism 500, the reset member 550 is located in the extension direction of the movement path of the transmission member 420 of the first drive mechanism 400. Specifically, the reset member 550 is located in the extension direction of the movement path of the first actuation part 421. Therefore, when an external force drives the handle assembly 300 to move, the reset member 550 can be driven to move synchronously through the handle assembly 300. Thus, the reset member 550 can abut against and drive the transmission member 420 to move synchronously, and through the transmission member 420, drive the locking mechanism to re-lock, and synchronously drive the first drive member 410 to reset. In short, in this state, the first drive mechanism 400 can be reset under the drive of the handle assembly 300, and drive the locking assembly 200 to re-lock.

[0094] After the second drive unit 510 receives the actuation signal of a complex fault, such as Figure 8 As shown, the second driving member 510 drives the driving rod 520 to extend, thereby causing the reset member 550 to move away from the extension direction of the movement path of the first driving mechanism 400, that is, to move the reset member 550 away from the extension direction of the movement path of the first actuating part 421, so that the handle assembly 300 is disengaged from the first driving mechanism 400. In this case, even if the handle assembly 300 is rotated, the first driving mechanism 400 cannot be reset, and the locking mechanism can no longer be engaged.

[0095] In this embodiment, the drive rod 520 is provided with a second reset part 522, which extends out of the housing and is used to drive the drive rod 520 to move in the opposite direction under the action of external force to retract and reset to the initial state.

[0096] In other words, after the second drive mechanism 500 is started, it can be reset by manually moving the second reset part 522 to retract the drive rod 520 to the first drive member 410.

[0097] Of course, in other embodiments of this utility model, the system can also be reset by automatic reset, thereby enabling remote operation.

[0098] Specifically, after the second drive member 510 receives the actuation signal of a complex fault, the second drive member 510 can drive the drive rod 520 to move, so as to drive the reset member 550 away from the extension direction of the movement path of the first drive mechanism 400, that is, to drive the reset member 550 away from the extension direction of the movement path of the first actuation part 421, so as to disengage the handle assembly 300 from the first drive mechanism 400; after the fault is cleared, the second drive member 510 can directly drive the drive rod 520 to move in the opposite direction to reset to the initial state after receiving the external reset signal.

[0099] Furthermore, the second drive mechanism 500 also includes a second elastic member 560, the drive rod 520 is provided with a third abutment portion 524, and the reset member 550 is provided with a fourth abutment portion 551.

[0100] In the initial state of the second drive mechanism 500, that is, when the drive rod 520 is retracted relative to the second drive member 510, the third abutment part 524 abuts against the fourth abutment part 551, and the second elastic member 560 is compressed and disposed between the fourth abutment part 551 and the slide plate 310 of the handle assembly 300. At this time, the reset member 550 is located in the extension direction of the movement path of the transmission member 420 of the first drive mechanism 400, that is, the reset member 550 is located in the extension direction of the movement path of the first actuation part 421.

[0101] After receiving the actuation signal of a complex fault, the second drive member 510 drives the drive rod 520 to move, so that the third abutment 524 disengages from the fourth abutment 551, and so that the reset member 550 moves away from the extension direction of the movement path of the transmission member 420 of the first drive mechanism 400 under the action of the second elastic member 560, that is, the reset member 550 moves away from the extension direction of the movement path of the first actuation member 421 under the action of the second elastic member 560; or it can drive the drive rod 520 to move back to the initial state when an external driving force is applied to the second reset member 522.

[0102] In summary, this utility model embodiment provides a disconnecting switch 10, which provides dual protection for the disconnecting switch 10 through the first driving mechanism 400 and the second driving mechanism 500, and can adapt to different circuit fault scenarios, effectively improving the adaptability of the disconnecting switch 10, thereby ensuring the stability and reliability of the power supply system; in addition, the reset process of the driving mechanism is efficient and convenient, improving the operating efficiency of the disconnecting switch 10.

[0103] Furthermore, this utility model embodiment also provides a power conversion device, including a chassis, a control unit, and an isolating switch 10 as described in the above embodiments.

[0104] In this embodiment, the handle is exposed outside the chassis for user operation, and the reset button is located inside the chassis; the control unit is electrically connected to the first drive mechanism 400 and the second drive mechanism 500, and is used to send a trip signal to at least one of the first drive mechanism 400 and the second drive mechanism 500 when a circuit fault occurs.

[0105] Furthermore, this utility model embodiment also provides a power supply system, including a power conversion device, a control unit, and an isolating switch 10 as described in the above embodiments.

[0106] In this embodiment, the control unit is independent of the power conversion device, the disconnect switch is installed in the power conversion device, and the handle is exposed outside the power conversion device; the control unit forms an electrical connection with the first drive mechanism 400 and the second drive mechanism 500 through the power conversion device, and is used to send a trip signal to at least one of the first drive mechanism 400 and the second drive mechanism 500 when a line fault occurs.

[0107] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A disconnecting switch, the disconnecting switch comprising a handle, an operating mechanism, and a plurality of switching units, the handle being capable of driving the operating mechanism to move, thereby causing the plurality of switching units to close or open, characterized in that, The operating mechanism includes: Mounting housing (100); A latching assembly (200) is disposed on the mounting housing (100) and is used to drive the contact assembly to close or open the circuit breaker. A handle assembly (300) is movably disposed in the mounting housing (100), and the handle assembly (300) can drive the locking assembly (200) to move so as to realize the closing or opening of the contact assembly; A first drive mechanism (400) is fixedly disposed on the mounting housing (100). The first drive mechanism (400) is in transmission cooperation with the handle assembly (300) and is used to reset under the drive of the handle assembly (300) and drive the latch assembly (200) to latch again, or to drive the latch assembly (200) to disengage so that the contact assembly opens. The second drive mechanism (500) is fixedly disposed on the mounting housing (100). The second drive mechanism (500) cannot disengage the locking assembly (200). The second drive mechanism (500) is used to lock the handle assembly (300), or the second drive mechanism (500) is used to disengage the handle assembly (300) from the first drive mechanism (400).

2. The disconnecting switch according to claim 1, characterized in that, The handle assembly (300) includes a handle rod (320) and a slide plate (310), the handle rod (320) being throttle-connected to the slide plate (310), and the slide plate (310) being provided with an extension (311); The first driving mechanism (400) includes a first driving member (410) and a transmission member (420). The first driving member (410) is fixedly disposed on the mounting housing (100) and is used to drive the transmission member (420) to move so as to drive the locking assembly (200) to disengage. The extension (311) is located in the extension direction of the movement path of the transmission member (420). When the first drive mechanism (400) receives a signal to drive the locking assembly (200) to disengage, the extension (311) is used to drive the transmission member (420) to move in the opposite direction under the drive of the slide plate (310), so that the transmission member (420) drives the locking assembly (200) to re-engage and reset the first drive member (410).

3. The disconnecting switch according to claim 1, characterized in that, The first drive mechanism (400) includes a first drive member (410) and a transmission member (420), wherein the first drive member (410) is fixedly disposed on the mounting housing (100); The first driving member (410) is used to drive the transmission member (420) to move so as to disengage the locking assembly (200); and after disengagement, the transmission member (420) can automatically reset to the initial state.

4. The disconnecting switch according to claim 1, characterized in that, The second drive mechanism (500) includes a second drive member (510), a drive rod (520), and a retaining member (530); The retaining member (530) is movably disposed on the mounting housing (100), the driving rod (520) is in transmission cooperation with the retaining member (530), and the second driving member (510) is used to drive the driving rod (520) to move so that the retaining member (530) is in retaining cooperation with the handle assembly (300); The drive rod (520) is provided with a first reset part (521), which extends out of the mounting housing (100) and is used to drive the drive rod (520) to move in the opposite direction under the action of external force to reset to the initial state, so that the retaining member (530) is disengaged from the handle assembly (300).

5. The disconnecting switch according to claim 1, characterized in that, The second drive mechanism (500) includes a second drive member (510), a drive rod (520), and a retaining member (530); The retaining member (530) is movably disposed in the mounting housing (100). The drive rod (520) is in transmission engagement with the retaining member (530). The second drive member (510) is used to drive the drive rod (520) to move so that the retaining member (530) is engaged with the handle assembly (300). Alternatively, when the first drive mechanism (400) drives the locking assembly (200) to disengage, the second drive member (510) is also used to receive an external reset signal to drive the drive rod (520) to move in the opposite direction to reset to the initial state so that the retaining member (530) is disengaged from the handle assembly (300).

6. The disconnecting switch according to claim 4 or 5, characterized in that, The second drive mechanism (500) further includes a first elastic element (540), the drive rod (520) is provided with a first abutting part (523), the holding member (530) is provided with a second abutting part (531), and the slide plate (310) of the handle assembly (300) is provided with a slot (312). When the second driving member (510) is in the initial state, the first abutting part (523) abuts against the second abutting part (531), and the first elastic member (540) is compressed and disposed between the mounting housing (100) and the retaining member (530). The second driving member (510) drives the driving rod (520) to move, so that the first abutting part (523) disengages from the second abutting part (531), so that the retaining member (530) moves toward the handle assembly (300) and is inserted into the slot (312) under the action of the first elastic member (540).

7. The disconnecting switch according to claim 1, characterized in that, The second drive mechanism (500) includes a second drive member (510), a drive rod (520), and a reset member (550). The second drive member (510) is fixedly disposed on the mounting housing (100), and the reset member (550) is movably disposed on the slide plate (310) of the handle assembly (300). When the second drive mechanism (500) is in its initial state, the reset member (550) is located in the extension direction of the movement path of the first drive mechanism (400), so that the first drive mechanism (400) can be reset under the drive of the handle assembly (300) and drive the locking assembly (200) to lock again; The second driving member (510) is used to drive the driving rod (520) to move, so as to drive the reset member (550) away from the extension direction of the movement path of the first driving mechanism (400), so as to disengage the handle assembly (300) from the first driving mechanism (400). The drive rod (520) is provided with a second reset part (522), which extends out of the mounting housing (100) and is used to drive the drive rod (520) to move in the opposite direction under the action of external force to reset to the initial state.

8. The disconnecting switch according to claim 1, characterized in that, When the second drive mechanism (500) is in its initial state, the first drive mechanism (400) is in a transmission engagement with the handle assembly (300); The second drive mechanism (500) is used to disengage the handle assembly (300) from the first drive mechanism (400); or after the first drive mechanism (400) drives the locking assembly (200) to disengage, the second drive mechanism (500) is also used to receive an external reset signal to reset to the initial state.

9. The disconnecting switch according to claim 8, characterized in that, The second drive mechanism (500) includes a second drive member (510), a drive rod (520), and a reset member (550). The second drive member (510) is fixedly disposed on the mounting housing (100), and the reset member (550) is movably disposed on the slide plate (310) of the handle assembly (300). When the second drive mechanism (500) is in its initial state, the reset member (550) is located in the extension direction of the movement path of the first drive mechanism (400), so that the first drive mechanism (400) can be reset under the drive of the handle assembly (300) and drive the locking assembly (200) to lock again; The second driving member (510) is used to drive the driving rod (520) to move, so as to drive the reset member (550) away from the extension direction of the movement path of the first driving mechanism (400), so as to disengage the handle assembly (300) from the first driving mechanism (400); or when the first driving mechanism (400) drives the locking assembly (200) to disengage, the second driving member (510) is also used to receive an external reset signal to drive the driving rod (520) to move in the opposite direction to reset to the initial state.

10. The disconnecting switch according to claim 7 or 9, characterized in that, The second drive mechanism (500) further includes a second elastic element (560), the drive rod (520) is provided with a third abutting part (524), and the reset element (550) is provided with a fourth abutting part (551); In the initial state of the second drive mechanism (500), the third abutting part (524) abuts against the fourth abutting part (551), and the second elastic member (560) is compressed and disposed between the fourth abutting part (551) and the slide plate (310) of the handle assembly (300). The second driving member (510) is used to drive the driving rod (520) to move so that the third abutment (524) disengages from the fourth abutment (551) so that the reset member (550) moves away from the extension direction of the movement path of the first driving mechanism (400) under the action of the second elastic member (560).

11. A power conversion device, characterized in that, It includes a chassis, a control unit, and an isolation switch as described in any one of claims 1-10; the handle is exposed outside the chassis for user operation, and the reset button is located inside the chassis; The control unit is electrically connected to the first drive mechanism (400) and the second drive mechanism (500), and is used to send a trip signal to the first drive mechanism (400) and / or the second drive mechanism (500) when a line fault occurs.

12. A power supply system, characterized in that, The device includes a power conversion device and a control unit as described in any one of claims 1-10; the control unit is independent of the power conversion device, the disconnecting switch is installed in the power conversion device, and the handle is exposed outside the power conversion device; the control unit is electrically connected to the first drive mechanism (400) and the second drive mechanism (500) through the power conversion device, and is used to send a trip signal to the first drive mechanism (400) and / or the second drive mechanism (500) when a line fault occurs.

Images