A disconnector, power conversion device and 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 handle, operating mechanism module and multiple switch units, handle can drive the operating mechanism module movement, to make multiple switch units close or open, operating mechanism module includes installation shell and the lock catch assembly of setting in installation shell, handle assembly, actuating assembly, first drive mechanism and second drive mechanism.In actuating assembly first state, first drive mechanism drives lock catch assembly to trip, to make contact assembly open;First drive mechanism is also used to reset under the driving of actuating assembly and drive lock catch assembly to load catch;Second drive mechanism is used to drive actuating assembly from first state movement to second state, to make the state of first drive mechanism and handle assembly disengage transmission cooperation, to improve the adaptability, stability and reliability of isolator, and improve the operating efficiency of isolator.

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 utility model provides a disconnecting switch, a power conversion device, and a power supply system, which can not only adapt to different circuit fault scenarios and effectively improve the adaptability of the disconnecting switch, thereby ensuring the stability and reliability of the power supply system, but also improve the operating efficiency of the disconnecting switch.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a disconnecting switch, which includes a handle, an operating mechanism module, and multiple switching units. The handle can drive the operating mechanism module to move, thereby closing or opening the multiple switching units. The operating mechanism module includes: Mounting housing; A latching assembly is disposed on the mounting housing and is used for driving connection with the contact assembly of the switch unit to drive the contact assembly to close or open. A handle assembly is movably disposed in the mounting housing, and the handle assembly can drive the locking assembly to move so as to drive the contact assembly to close or open the circuit breaker; An actuation component is movably disposed on the handle assembly, the actuation component having a first state and a second state; A first driving mechanism is fixedly disposed on the mounting housing. In the first state, the actuation component is in a transmission cooperation with the handle component to drive the latch component to disengage, thereby causing the contact component to open. The first driving mechanism is also used to reset under the drive of the actuation component and drive the latch component to engage. The second drive mechanism is fixedly disposed on the mounting housing. The second drive mechanism is used to drive the actuation component from the first state to the second state, so that the first drive mechanism is disengaged from the handle assembly.

[0006] In an optional embodiment, the actuation component includes an actuating element and a resetting element; The actuator is rotatably disposed on the handle assembly; When the actuation component is in the first state, the actuator is used to abut against the first drive mechanism so that the first drive mechanism can be driven to engage with the handle assembly. When the actuation component is in the second state, the actuator is away from the first drive mechanism so that the first drive mechanism cannot be driven to engage with the handle assembly. The reset member is disposed on the handle assembly and is connected to the actuator. After the second drive mechanism removes the force on the actuator, the reset member is used to drive the actuator to reset from the second state to the first state.

[0007] In an optional embodiment, the first driving mechanism includes a first driving member and a first transmission member. The first driving member is fixedly disposed on the mounting housing and is used to drive the first transmission member to move so as to cause the locking assembly to disengage. When the actuation component is in the first state, the actuating member is located in the extension direction of the movement path of the first transmission member, and when the first drive mechanism receives a signal to drive the locking component to disengage, the actuating member is used to drive the first transmission member to move in the opposite direction under the drive of the handle assembly, so that the first transmission member drives the locking component to engage and the first drive member is reset. When the actuation component is in the second state, the actuating element is located outside the extension direction of the motion path of the first transmission element.

[0008] In an optional embodiment, the handle assembly includes a slide plate and a handle rod. The slide plate is slidably disposed on the mounting housing. The handle rod is pulsatorically connected to both the slide plate and the locking assembly. The handle rod is used to drive the slide plate to slide under the drive of the handle and to drive the locking assembly to move in the locking state, so as to drive the contact assembly to close or open. Both the actuator and the reset element are disposed on the slide plate.

[0009] In an optional embodiment, the handle assembly further includes a stop, and the handle is provided with a locking member and an elastic member. The stop is disposed on the slide plate and has a stop groove. The locking member is used to engage with the stop groove in a padlocked state to restrict the rotation of the handle. The elastic element is disposed inside the handle and connected to the locking element, and is used to drive the locking element to disengage from the stop groove when the locking element is in the unlocked state.

[0010] In an optional embodiment, the slide plate is provided with a pivot, the actuator is rotatably disposed on the pivot, one end of the reset member overlaps with the slide plate, and the other end is connected to the actuator.

[0011] In an optional embodiment, the second drive mechanism includes a second drive member and a second transmission member. The second drive mechanism is fixedly disposed on the mounting housing and is used to drive the second transmission member to move, thereby causing the actuator to move along an extension direction away from the motion path of the first drive mechanism, so that the actuator component moves from the first state to the second state.

[0012] In an optional embodiment, the second drive mechanism is further configured to drive the second transmission member to move in the opposite direction to reset; Alternatively, the side wall of the second transmission member is provided with a toggle part, which protrudes from the mounting housing and is used to drive the second transmission member to move in the opposite direction to reset.

[0013] In an optional embodiment, at least two of the switch units are stacked in a direction perpendicular to the handle rod axis to form a layer, and multiple layers of the switch units are arranged sequentially along the handle rod axis to make the plurality of switch units arranged in a matrix.

[0014] 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 a reset button is provided 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.

[0015] 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, an isolating switch; the control unit is independent of the power conversion device, the isolating 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.

[0016] The beneficial effects of the disconnecting switch, power conversion device, and power supply system provided by this utility model embodiment include: the transmission cooperation between the first drive mechanism and the second drive mechanism and the actuation component provides dual protection for the disconnecting switch and can 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 drive mechanism reset process is efficient and convenient, which also improves the operating efficiency of the disconnecting switch. Attached Figure Description

[0017] 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.

[0018] Figure 1 A schematic diagram of the disconnector switch structure provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the internal structure of the disconnecting switch provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the operating mechanism module structure provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the first state structure of the operating mechanism module provided in an embodiment of the present utility model; Figure 5 A schematic diagram of the first state structure of the actuation component provided in an embodiment of this utility model; Figure 6 This is a schematic diagram of the second state structure of the operating mechanism module provided in an embodiment of the present utility model; Figure 7 A schematic diagram of the second state structure of the actuation component provided in an embodiment of this utility model; Figure 8 This is a schematic diagram of the handle padlock state structure provided in an embodiment of the present utility model; Figure 9A cross-sectional view of the handle padlock in the present invention embodiment; Figure 10 A schematic diagram of the switching unit structure provided in an embodiment of this utility model; Figure 11 This is a schematic diagram of the switching unit structure provided in an embodiment of the present utility model.

[0019] Icons: 10-Isolating switch; 11-Operating mechanism module; 12-Handle; 13-Switch unit; 14-Locking element; 15-Elastic element; 16-Moving contact assembly; 17-Stationary contact assembly; 18-Arc extinguishing chamber; 19-Rotating shaft; 100-Mounting housing; 200-Lock assembly; 300-Handle assembly; 310-Slide plate; 311-Rotating shaft; 320-Handle lever; 330-Stop element; 331-Stop groove; 400-Actuation assembly; 410-Actuator; 420-Reset element; 500-First drive mechanism; 510-First drive element; 520-First transmission element; 521-First transmission part; 522-Connecting part; 523-Second transmission part; 600-Second drive mechanism; 610-Second drive element; 620-Second transmission element; 621-Toggle part. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Based on the problems existing in the current technology, please refer to Figures 1 to 11 This utility model provides an isolating switch 10, which is applied to power supply systems and is particularly suitable for equipment such as power conversion devices. The isolating switch 10 provided by this utility model can adapt to different circuit fault scenarios, effectively improving the adaptability of the isolating switch 10, thereby ensuring the stability and reliability of the power supply system.

[0029] The disconnector switch 10 includes an operating mechanism module 11, a handle 12, and multiple switch units 13. The handle 12 can drive the operating mechanism module 11 to move, so that the multiple switch units 13 can be closed or opened.

[0030] The operating mechanism module 11 includes a mounting housing 100, a locking assembly 200, a handle assembly 300, an actuation assembly 400, a first drive mechanism 500, and a second drive mechanism 600. The handle assembly 300 and the actuation assembly 400 are movably disposed on the mounting housing 100, and the first drive mechanism 500 and the second drive mechanism 600 are fixedly disposed on the mounting housing 100.

[0031] In detail, the latching assembly 200 is drivenly connected to the contact assembly of the switch unit 13 to drive the contact assembly to close or open; the handle assembly 300 can drive the latching assembly 200 to move in the latching state to drive the contact assembly to close or open.

[0032] It should be noted that the actuation component 400 has an initial state (first state) and a second state (second state) after being driven.

[0033] In the first state of the actuation component 400, the first drive mechanism 500 is in transmission engagement with the handle assembly 300 through the actuation component 400, and is used to drive the latch assembly 200 to disengage so that the contact assembly is opened; the first drive mechanism 500 is also used to reset under the drive of the actuation component 400 and drive the latch assembly 200 to engage; the second drive mechanism 600 is used to drive the actuation component 400 from the first state to the second state so that the first drive mechanism 500 is disengaged from the handle assembly 300.

[0034] In other words, the first drive mechanism 500 can be selectively connected to the handle assembly 300 through the actuation component 400. That is, when the actuation component 400 is in the first state, the first drive mechanism 500 is in transmission engagement with the handle assembly 300 through the actuation component 400. However, when the actuation component 400 is in the second state, there is no transmission connection between the first drive mechanism 500 and the handle assembly 300. At this time, the movement of the handle assembly 300 will not drive the first drive mechanism 500 to move synchronously and reset.

[0035] Therefore, for example: after the control unit receives the actuation signal of a simple fault, the control unit controls the first drive to start, so as to drive the latching assembly 200 to disengage through the first drive mechanism 500. In this way, the latching assembly 200 drives the contact assembly to change from the closed state to the open state, thereby ensuring that the power supply system circuit is disconnected in time and ensuring the safe operation of the power supply system.

[0036] In the first state, the actuation component 400 ensures the transmission cooperation between the first drive mechanism 500 and the handle assembly 300. Therefore, the operator can rotate the handle 12 to drive the handle assembly 300 to slide relative to the mounting housing 100. In this way, the handle assembly 300 drives the locking assembly 200 to be put back into the locking state, and at the same time, the actuation component 400 drives the first drive mechanism 500 to reset, so that the first drive mechanism 500 moves away from the locking assembly 200, thereby simplifying the reset operation of the first drive mechanism 500.

[0037] After the control unit receives the actuation signal of a complex fault, the control unit simultaneously controls the first drive mechanism 500 and the second drive mechanism 600. The second drive mechanism 600 drives the actuation component 400 to move from the first state to the second state, so that the first drive mechanism 500 is disengaged from the handle assembly 300. That is, at this time, the first drive mechanism 500 and the handle assembly 300 are not in a transmission relationship. This ensures that when the operator turns the handle 12 to drive the handle assembly 300 to slide, the actuation component 400 cannot drive the first drive component 510 to reset. As a result, the locking component 200 remains in the disengaged state and cannot be closed. This avoids accidental closing of the power supply system under complex fault conditions and further improves the safety performance of the disconnector switch 10.

[0038] After the operator has troubleshooted the complex fault, the actuator 400 can be electrically or manually driven to reset to the first state, so that the handle assembly 300 and the first drive mechanism 500 can be driven to cooperate. This ensures that while the handle assembly 300 slides to drive the first drive mechanism 500 to reset, the latch assembly 200 is also driven to latch, thus ensuring that the contact assembly can be closed again.

[0039] Therefore, the disconnect switch 10 provided in this embodiment of the present invention provides dual protection for the disconnect switch 10 through the transmission cooperation between the first drive mechanism 500 and the second drive mechanism 600 and the actuation component 400, 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 drive mechanism reset process is efficient and convenient, which also improves the operating efficiency of the disconnect switch 10.

[0040] Furthermore, the actuation assembly 400 includes an actuator 410, which is rotatably disposed on the handle assembly 300.

[0041] When the actuation component 400 is in the first state, and after the first drive member 510 is activated, the actuation component 410 can abut against the first drive mechanism 500 under the drive of the handle assembly 300, so as to realize the transmission cooperation between the first drive mechanism 500 and the handle assembly 300, thereby driving the first drive mechanism 500 to reset through the actuation component 410.

[0042] When the actuation assembly 400 is in the second state, the actuator 410 is away from the first drive mechanism 500 so that the first drive mechanism 500 cannot engage with the handle assembly 300. At this time, even if the handle assembly 300 drives the actuator 410 to move, the actuator 410 cannot come into contact with the first drive mechanism 500 and thereby drive the first drive mechanism 500 to reset.

[0043] Furthermore, in order to ensure that the actuator 410 always remains in the first state when it is not subjected to other forces, the actuation assembly 400 also includes a reset member 420, which is disposed in the handle assembly 300 and connected to the actuator 410.

[0044] Therefore, after the second drive mechanism 600 removes the force on the actuator 410, the reset member 420 drives the actuator 410 to reset from the second state to the first state, thereby restoring the handle assembly 300 and the first drive mechanism 500 to a state where they can be driven and engaged.

[0045] In this embodiment, the reset component 420 can be a spring, torsion spring, or other component, and no specific limitation is made here.

[0046] Furthermore, the first drive mechanism 500 includes a first drive member 510 and a first transmission member 520. The first drive member 510 is fixedly disposed on the mounting housing 100 and is used to drive the first transmission member 520 to move, thereby causing the latching assembly 200 to disengage, and then the latching assembly 200 to drive the contact assembly to open.

[0047] Specifically, such as Figure 4 and Figure 5 As shown, when the actuation assembly 400 is in the first state, the actuator 410 is located in the extension direction of the movement path of the first transmission member 520. Therefore, after the first drive mechanism 500 receives a signal to drive the locking assembly 200 to disengage, the actuator 410 can drive the first transmission member 520 to move in the opposite direction under the drive of the handle assembly 300, so that the first transmission member 520 drives the locking assembly 200 to engage and the first drive member 510 to reset.

[0048] As can be seen, after the first drive unit 510 receives the actuation signal of a simple fault, the first drive unit 510 starts to drive the output terminal of the first drive unit 510 to drive the first transmission unit 520 to move, thereby the first transmission unit 520 drives the latching assembly 200 to disengage, and then the latching assembly 200 drives the contact assembly to open.

[0049] It is worth mentioning that after the first drive mechanism 500 is started, the first drive component 510 can be reset by manually rotating the knob handle assembly 300, and the locking assembly 200 can be locked simultaneously.

[0050] Of course, in other embodiments of this utility model, the reset can also be performed by automatic reset, thereby enabling remote operation, which is not specifically limited here.

[0051] like Figure 6 and Figure 7As shown, when the actuation assembly 400 is in the second state, the actuator 410 is located outside the extension direction of the movement path of the first transmission member 520, thereby ensuring that the turning handle assembly 300 cannot drive the first drive member 510 to reset at this time, thus ensuring that the locking assembly 200 is in the disengaged state and cannot drive the contact assembly to close.

[0052] In detail, the first transmission member 520 includes a first transmission part 521, a connecting part 522, and a second transmission part 523 connected in sequence. The first transmission part 521 is connected to the output end of the first drive member 510. The actuator 410 is located in the extension direction of the movement path of the first transmission part 521. That is, the actuator 410 can abut against the first transmission part 521 and drive it to move in the opposite direction under the drive of the handle assembly 300, thereby realizing the reset of the first drive member 510 and driving the connecting part 522 and the second transmission part 523 to move in the same direction, so that the second transmission part 523 drives the locking assembly 200 to fasten.

[0053] Furthermore, the handle assembly 300 includes a slide plate 310 and a handle rod 320. The slide plate 310 is slidably disposed on the mounting housing 100. The handle rod 320 is pulsatorically connected to the slide plate 310 and the locking assembly 200. The handle rod 320 is used to drive the slide plate 310 to slide under the drive of the handle 12, and to drive the locking assembly 200 to move when the locking assembly 200 is in the latched state, so as to drive the contact assembly to close or open. The actuator 410 and the reset member 420 are both disposed on the slide plate 310.

[0054] It is worth mentioning that the sliding direction of the slide plate 310 is the same as the movement direction of the first transmission member 520. That is, when the handle 12 drives the slide plate 310 to move relative to the mounting housing 100 through the handle rod 320, it can drive the actuator 410 to move toward the first transmission member 520. The first driving member 510 is used to drive the first transmission member 520 to pop out toward the actuator 410. Therefore, the actuator 410 can abut against the first transmission member 520 and drive the first transmission member 520 to reset during the sliding process of the slide plate 310.

[0055] Specifically, the slide plate 310 is provided with a rotating shaft 311, the actuator 410 is rotatably disposed on the rotating shaft 311, one end of the reset member 420 is connected to the slide plate 310, and the other end is connected to the actuator 410.

[0056] In this embodiment, the rotatable arrangement of the actuator 410 around the rotating shaft 311 enables it to undergo controllable rotational motion under the action of external force; the slide plate 310, as a supporting base, establishes a mechanical transmission path through the overlapping relationship between its surface and one end of the reset member 420.

[0057] Specifically, when the actuator 410 rotates under the drive of the second drive mechanism 600, the actuator 410 causes the reset member 420 connected to it to deform. The reset member 420 generates a counterforce due to its elastic properties. This force is transmitted to the actuator 410 through the connection point, forming a restoring torque, which causes the actuator 410 to automatically rotate back to its initial position after the external driving force is removed. This design ensures the reversibility and repeatability of the actuator 410's movement, avoiding functional failures caused by residual displacement or jamming.

[0058] Furthermore, such as Figure 8 and Figure 9 As shown, the handle assembly 300 also includes a stop 330. The handle 12 is provided with a locking member 14 and an elastic member 15. The stop 330 is provided on the slide plate 310. The stop 330 is provided with a stop groove 331. The locking member 14 is used to engage with the stop groove 331 in the padlock state to limit the rotation of the handle 12, so as to ensure that the handle 12 is not rotated in this state, and further improve the safety performance of the disconnect switch.

[0059] The elastic element 15 is disposed inside the handle 12 and connected to the locking element 14. When the locking element 14 is in the unlocked state, the locking element 14 is only subjected to the elastic restoring force of the elastic element 15. Therefore, the elastic element 15 can drive the locking element 14 to disengage from the stop groove 331, thereby unlocking the handle 12 so that the handle 12 can be rotated freely.

[0060] Furthermore, the second drive mechanism 600 includes a second drive member 610 and a second transmission member 620. The second drive mechanism 600 is fixedly disposed on the mounting housing 100 and is used to drive the second transmission member 620 to move, so as to drive the actuator 410 to move along the extension direction away from the movement path of the first transmission member 520, so as to move the actuator 400 from the first state to the second state.

[0061] Specifically, after the second drive member 610 receives the actuation signal of a complex fault, the second drive member 610 can drive the second transmission member 620 to extend, so that the second transmission member 620 abuts against the actuator 410 and drives the actuator 410 to rotate, thereby moving the actuator assembly 400 from the first state to the second state, so that the handle assembly 300 cannot be driven and cooperated with the first drive member 510.

[0062] It is worth mentioning that the side wall of the second transmission component 620 is provided with a toggle part 621. The toggle part 621 protrudes from the mounting housing 100. The toggle part 621 is used to drive the second transmission component 620 to move in the opposite direction to reset it. This makes it convenient for the operator to manually toggle the toggle part 621 after troubleshooting all faults, so as to drive the second transmission component 620 to move in the opposite direction to reset it.

[0063] Of course, in other embodiments of this utility model, the second transmission member 620 can also be driven to move in the opposite direction to reset by the second driving mechanism 600 or other driving mechanisms, thereby realizing remote operation, which is not specifically limited here.

[0064] Furthermore, such as Figure 2 As shown, at least two switch units 13 are stacked in a direction perpendicular to the axial direction of the handle rod 320 to form a layer, and multiple switch units 13 are arranged sequentially along the axial direction of the handle rod 320 so that multiple switch units 13 are arranged in a matrix.

[0065] In detail, such as Figure 10 and Figure 11 As shown, each switch unit 13 is provided with a moving contact assembly 16, a stationary contact assembly 17, an arc-extinguishing chamber 18, and a rotating shaft 19. The middle part of the moving contact assembly 16 is connected to the rotating shaft 19. The rotating shaft 19 is perpendicular to the handle rod 320 and is used to drive the moving contact assembly 16 to rotate under the drive of the handle rod 320, so that the moving contact provided in the moving contact assembly 16 can contact or separate from the two stationary contact assemblies 17 respectively, thereby realizing the closing and opening of each switch unit.

[0066] There are also two arc-extinguishing chambers 18, which are located on both sides of the moving contact assembly 16 and the two stationary contact assemblies. They are used to quickly extinguish the arc generated by the moving contact assembly 16 and the stationary contact assembly 17, thereby improving the safety performance of the disconnecting switch 10.

[0067] In summary, this utility model embodiment provides a disconnecting switch 10, which provides dual protection for the disconnecting switch 10 through the transmission cooperation between the first driving mechanism 500 and the second driving mechanism 600 and the actuation component 400, 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 driving mechanism reset process is efficient and convenient, which also improves the operating efficiency of the disconnecting switch 10.

[0068] 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.

[0069] In this embodiment, the handle 12 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 500 and the second drive mechanism 600, and when a circuit fault occurs, it is used to send a trip signal to at least one of the first drive mechanism 500 and the second drive mechanism 600, thereby driving the contact assembly of the switch unit 13 to trip.

[0070] 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.

[0071] In this embodiment, the control unit is independent of the power conversion device, the disconnect switch 10 is installed in the power conversion device, and the handle 12 is exposed outside the power conversion device. The control unit forms an electrical connection with the first drive mechanism 500 and the second drive mechanism 600 through the power conversion device. When a line fault occurs, it is used to send a trip signal to at least one of the first drive mechanism 500 and the second drive mechanism 600, thereby driving the contact assembly of the switch unit 13 to open.

[0072] 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 (12), an operating mechanism module (11), and a plurality of switching units (13), wherein the handle (12) is capable of driving the operating mechanism module (11) to move, thereby causing the plurality of switching units (13) to close or open, characterized in that, The operating mechanism module (11) includes: Mounting housing (100); A latching assembly (200) is disposed on the mounting housing (100). The latching assembly (200) is used to drive the contact assembly of the switch unit (13) to close or open the circuit. A handle assembly (300) is movably disposed on the mounting housing (100). The handle assembly (300) can drive the latch assembly (200) to move, thereby driving the contact assembly to close or open. An actuation component (400) is movably disposed on the handle assembly (300), the actuation component (400) having a first state and a second state; The first drive mechanism (500) is fixedly disposed on the mounting housing (100). In the first state, the actuation component (400) is engaged with the handle component (300) through the actuation component (400) to drive the latch component (200) to disengage, thereby opening the contact component. The first drive mechanism (500) is also used to reset under the drive of the actuation component (400) and drive the latch component (200) to engage. The second drive mechanism (600) is fixedly disposed on the mounting housing (100). The second drive mechanism (600) is used to drive the actuation component (400) from the first state to the second state, so that the first drive mechanism (500) is disengaged from the handle assembly (300).

2. The disconnecting switch according to claim 1, characterized in that, The actuation assembly (400) includes an actuator (410) and a reset member (420). The actuator (410) is rotatably disposed on the handle assembly (300). When the actuation assembly (400) is in the first state, the actuator (410) is used to abut against the first drive mechanism (500) so that the first drive mechanism (500) can engage with the handle assembly (300) in a transmission manner; When the actuation assembly (400) is in the second state, the actuator (410) is away from the first drive mechanism (500) so that the first drive mechanism (500) cannot engage with the handle assembly (300) in a transmission manner; The reset member (420) is disposed on the handle assembly (300). The reset member (420) is connected to the actuator (410). After the second drive mechanism (600) removes the force on the actuator (410), the reset member (420) is used to drive the actuator (410) to reset from the second state to the first state.

3. The disconnecting switch according to claim 2, characterized in that, The first driving mechanism (500) includes a first driving member (510) and a first transmission member (520). The first driving member (510) is fixedly disposed on the mounting housing (100) and is used to drive the first transmission member (520) to move so as to drive the locking assembly (200) to disengage. When the actuation assembly (400) is in the first state, the actuator (410) is located in the extension direction of the movement path of the first transmission member (520), and when the first drive mechanism (500) receives a signal to drive the locking assembly (200) to disengage, the actuator (410) is used to drive the first transmission member (520) to move in the opposite direction under the drive of the handle assembly (300), so that the first transmission member (520) drives the locking assembly (200) to engage, and the first drive member (510) is reset; When the actuation assembly (400) is in the second state, the actuator (410) is located outside the extension direction of the motion path of the first transmission member (520).

4. The disconnecting switch according to claim 2, characterized in that, The handle assembly (300) includes a slide plate (310) and a handle rod (320). The slide plate (310) is slidably disposed on the mounting housing (100). The handle rod (320) is convexly connected to the slide plate (310) and the locking assembly (200). The handle rod (320) is used to drive the slide plate (310) to slide under the drive of the handle (12), and to drive the locking assembly (200) to move in the locking state, so as to drive the contact assembly to close or open. Both the actuator (410) and the reset member (420) are disposed on the slide plate (310).

5. The disconnecting switch according to claim 4, characterized in that, The handle assembly (300) further includes a stop (330), and a locking member (14) and an elastic member (15) are provided in the handle (12). The stop (330) is provided on the slide plate (310), and the stop (330) is provided with a stop groove (331). The locking member (14) is used to insert into the stop groove (331) in the padlock state to restrict the rotation of the handle (12). The elastic element (15) is disposed in the handle (12) and connected to the locking element (14), and is used to drive the locking element (14) to disengage from the stop groove (331) when the locking element (14) is in the unlocked state.

6. The disconnecting switch according to claim 4, characterized in that, The slide plate (310) is provided with a rotating shaft (311), and the actuator (410) is rotatably disposed on the rotating shaft (311). One end of the reset member (420) is connected to the slide plate (310), and the other end is connected to the actuator (410).

7. The disconnecting switch according to claim 2, characterized in that, The second drive mechanism (600) includes a second drive member (610) and a second transmission member (620). The second drive mechanism (600) is fixedly disposed on the mounting housing (100) and is used to drive the second transmission member (620) to move, so as to drive the actuator (410) to move along the extension direction away from the movement path of the first drive mechanism (500), so as to move the actuator (400) from the first state to the second state.

8. The disconnecting switch according to claim 7, characterized in that, The second drive mechanism (600) is also used to drive the second transmission member (620) to move in the opposite direction to reset; Alternatively, the side wall of the second transmission member (620) is provided with a toggle part (621), the toggle part (621) protrudes from the mounting housing (100), and the toggle part (621) is used to drive the second transmission member (620) to move in the opposite direction to reset.

9. The disconnecting switch according to claim 4, characterized in that, At least two of the switch units (13) are stacked in a direction perpendicular to the axial direction of the handle rod (320) to form a layer, and multiple layers of the switch units are arranged sequentially along the axial direction of the handle rod (320) so that the multiple switch units are arranged in a matrix.

10. A power conversion device, characterized in that, It includes a chassis, a control unit, and a disconnect switch as described in any one of claims 1-9; the handle (12) is exposed outside the chassis for user operation, and a reset button is provided inside the chassis; the control unit is electrically connected to the first drive mechanism (500) and the second drive mechanism (600), and is used to send a trip signal to the first drive mechanism (500) and / or the second drive mechanism (600) when a line fault occurs.

11. 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 1-9. The control unit is independent of the power conversion device, the disconnect switch is installed in the power conversion device, and the handle (12) is exposed outside the power conversion device. The control unit is electrically connected to the first drive mechanism (500) and the second drive mechanism (600) through the power conversion device, and is used to send a trip signal to the first drive mechanism (500) and / or the second drive mechanism (600) when a line fault occurs.

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