Operating mechanism and switching device

Abstract

The application provides an operating mechanism and a switching device, and relates to the technical field of electrical equipment. The operating mechanism comprises a shell, a separation piece, an operating handle and an elastic piece. The shell has an accommodating cavity inside, and a visible window is arranged on the shell and penetrates the cavity wall of the accommodating cavity. The separation piece is slidingly arranged in the accommodating cavity and can be switched between a first position and a second position. The operating handle is rotationally arranged in the accommodating cavity, and in the process of controlling the switching device to close, the operating handle drives the separation piece to slide from the second position to the first position. The elastic piece is located in the accommodating cavity, and the two ends of the elastic piece are respectively in abutment with the cavity wall of the accommodating cavity and the separation piece. In the process of controlling the switching device to open, the elastic piece drives the separation piece to slide from the first position to the second position. In this way, the separation piece can protect the visible window, reduce the influence of electric arc on the visualization of the switching device, and reduce the possibility of causing safety accidents.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to an operating mechanism and a switching device. BACKGROUND

[0002] The switching device is an electronic element that can open the circuit, interrupt the current or make the current flow to other circuits. There are multiple contacts inside the switching device, and the switching device can work normally by controlling the contact or separation of the multiple contacts.

[0003] In order to facilitate the observation of the use of the switching device, a window is generally arranged on the shell of the switching device to realize visualization. However, when the contacts are separated, the switching device cuts off the current in the circuit, and the voltage between the contacts can cause air medium discharge to form an arc. The arc is likely to burn the window, affecting the visualization of the switching device, and even causing a safety accident. SUMMARY

[0004] The present application provides an operating mechanism and a switching device, which can reduce the influence of the arc on the visualization of the switching device and reduce the possibility of safety accidents.

[0005] In a first aspect, the present application provides an operating mechanism applied to a switching device. The operating mechanism includes a shell, a separation piece, an operating handle and an elastic piece. The shell has an accommodating cavity inside, and a visible window is arranged on the shell and penetrates the cavity wall of the accommodating cavity. The separation piece is slidingly arranged in the accommodating cavity and can be switched between a first position and a second position. The operating handle is rotationally arranged in the accommodating cavity and is used to control the closing or opening of the switching device. In the process of controlling the closing of the switching device by the operating handle, the operating handle drives the separation piece to slide from the second position to the first position. The elastic piece is located in the accommodating cavity, and the two ends of the elastic piece are respectively in abutment with the cavity wall of the accommodating cavity and the separation piece. In the process of controlling the opening of the switching device by the operating handle, the elastic piece drives the separation piece to slide from the first position to the second position.

[0006] In the first aspect, when the separation piece is in the first position, the separation piece is misaligned with the visible window, and when the separation piece is in the second position, the separation piece is opposite to at least part of the visible window.

[0007] In the embodiments of the present application, when the switching device is opened and causes an arc to appear in the accommodating cavity, the elastic piece can push the separation piece, so that the separation piece slides to the second position. In this way, the separation piece can protect the visible window, reduce the damage of the arc to the visible window, and further reduce the influence of the arc on the visualization of the switching device and the possibility of causing a safety accident.

[0008] Optionally, the operating mechanism has a first direction along which the isolation member is slidable. The isolation member comprises a sliding portion, a connecting portion and a baffle. In the first direction, the connecting portion has opposite first and second ends, the first end being away from the visual window, the sliding portion being connected to the first end, and the baffle being connected to the second end. When the isolation member is in the second position, the baffle is opposite to at least part of the visual window.

[0009] The operating handle is connected with a driving rod, the driving rod being located between the sliding portion and the baffle. During the process that the operating handle controls the switching device to close, the driving rod pushes the sliding portion, so that the isolation member slides from the second position to the first position.

[0010] In this way, when the isolation member slides from the first position to the second position, the baffle can slide to a position opposite to the visual window first and shield the visual window.

[0011] Optionally, when the switching device is in the closed state, the operating handle is in abutment with part of the isolation member. During the process that the operating handle rotates to control the switching device to switch to the open state, the abutment part of the operating handle with the isolation member gradually decreases. When the operating handle rotates by a first angle, the operating handle is separated from the isolation member. When the operating handle rotates to a second angle, the switching device completes the state switching. The first angle is smaller than the second angle.

[0012] In this way, the response speed of the isolation member can be improved, so that the isolation member can shield the visual window in the initial stage of the switching device switching from the closed state to the open state, and the isolation and blocking effect of the electric arc can be improved.

[0013] Optionally, the shell is further provided with an operation hole spaced apart from the visual window, the operation hole penetrating the cavity wall of the accommodating cavity. The operating handle comprises an operating rod and a connecting piece, the connecting piece being rotationally connected to the cavity wall of the accommodating cavity, and the operating rod being connected to the connecting piece and at least partially extending out of the shell through the operation hole. The operating rod is used to drive the connecting piece to rotate, so that the connecting piece controls the switching device to close or open. The driving rod is connected to the side of the connecting piece away from the operation hole.

[0014] In this way, the operating rod can be used as the part operated by the user, and the connecting piece can be connected with the moving contact. Thus, when the user controls the operating rod to rotate, the connecting piece can rotate and control the moving contact to move, so that the moving contact is in contact with or separated from the static contact.

[0015] Optionally, the cavity wall of the accommodating cavity is provided with a guide groove extending in the first direction, and the sliding portion is embedded in and slidable in the guide groove.

[0016] Through the above arrangement, on the one hand, the guide groove and the sliding portion cooperate to realize the installation of the isolation member in the accommodating cavity.

[0017] On the other hand, the guide groove guides the sliding of the sliding portion when the isolation piece slides, and reduces the possibility of deviation of the isolation piece during the sliding.

[0018] Optionally, the cavity wall of the accommodating cavity is connected with a first guide plate and a second guide plate, the first guide plate and the second guide plate are spaced apart, and the first guide plate and the second guide plate extend along the first direction. The surface of the first guide plate facing the second guide plate and the surface of the second guide plate facing the first guide plate form the groove wall of the guide groove, and the sliding portion is embedded between the first guide plate and the second guide plate.

[0019] Through the above arrangement, the first guide plate and the second guide plate can cooperate to form the guide groove and install and guide the sliding portion.

[0020] Optionally, the isolation piece is a non-transparent structure.

[0021] Through the above arrangement, when the baffle shields the visual window, the user can observe the colored isolation piece through the visual window. In this way, the isolation piece can indicate the state of the switching device through its color.

[0022] Optionally, the isolation piece is provided with an indication structure, at least part of the indication structure is opposite to the visual window when the isolation piece is in the second position, and the indication structure is used to indicate that the switching device is in the open state.

[0023] Through the above arrangement, when the baffle shields the visual window, the user can observe the indication structure through the visual window. In this way, the isolation piece can indicate the state of the switching device through the indication structure.

[0024] Optionally, the shell is provided with a cover plate, the cover plate covers the visual window, and the cover plate is a transparent structure.

[0025] Through the above arrangement, the cover plate covers the visual window, and the cover plate can close the position of the shell where the visual window is opened, reducing the possibility that dust and the like from the outside enter the accommodating cavity through the visual window and affect the work of the components in the accommodating cavity.

[0026] In a second aspect, the present application provides a switching device, comprising the operating mechanism of any one of the first aspect.

[0027] Optionally, the switching device comprises a moving contact and a stationary contact, the moving contact is movably arranged in the accommodating cavity, the stationary contact is fixed in the accommodating cavity, and the visual window is opposite to the stationary contact. The operating handle is connected with the moving contact, and the operating handle can drive the moving contact to move, so that the moving contact contacts the stationary contact to close the switching device, or the moving contact separates from the stationary contact to open the switching device.

[0028] The switch provided by the second aspect and the possible designs of the second aspect has the advantages of the first aspect and the possible designs of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A schematic view of a switch according to an embodiment of the present application.

[0030] Figure 2 A schematic view of a switch according to an embodiment of the present application with the upper cover removed.

[0031] Figure 3 A schematic view of an operating mechanism according to an embodiment of the present application.

[0032] Figure 4 A schematic view of an operating mechanism according to an embodiment of the present application.

[0033] Figure 5 A schematic view of an isolation member according to an embodiment of the present application.

[0034] Figure 6 A schematic view of an operating mechanism according to an embodiment of the present application with the upper cover removed.

[0035] Figure 7 A schematic view of an operating handle according to an embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 100: operating mechanism; 200: switch; 201: movable contact; 202: stationary contact; 10: housing; 11: accommodating cavity; 12: visible window; 13: operating hole; 14: guide slot; 15: first guide plate; 16: second guide plate; 17: limiting plate; 18: cover plate; 101: base; 102: upper cover; 20: isolation member; 21: sliding part; 22: connecting part; 23: baffle; 221: first end; 222: second end; 30: operating handle; 301: driving rod; 31: operating rod; 32: connecting member; 40: elastic member; X: first direction. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise" and "comprising", or "include" and "including" or "has" and "having" and any variations thereof, is intended to cover a non-exclusive inclusion.

[0040] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another.

[0041] The term "and / or", merely describes association between associated objects, and means that there can be three relationships, for example, A and / or B, which means that there are A, A and B, and B. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0042] The orientation words appearing in the following description are the directions shown in the drawings, and do not limit the specific structure of the flow limiting module of the application. For example, in the description of the application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0043] In addition, the terms "first", "second", and the like in the specification and claims of the application or the above drawings are used to distinguish different objects, and are not used to describe a particular order, and can explicitly or implicitly include one or more of the features.

[0044] In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).

[0045] In the description of the present application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "connected", "connection" should be interpreted broadly, for example, the "connection" of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by spacer, for example, fixed connection by screw, bolt or other spacer; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The "connection" of the circuit structure can mean electrical connection or signal connection, for example, it can be direct connection, that is, physical connection, or indirect connection through at least one intermediate element, as long as the circuit is connected, it can also be the internal connection of two elements; the signal connection can be signal connection through circuit or signal connection through media medium, for example, radio wave. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0047] As shown in Figure 1 and Figure 2 , the embodiment of the present application proposes a switching device 200, which includes the operating mechanism 100 as shown in Figure 3 .

[0048] The switching device 200 is an electronic element that can open the circuit, interrupt the current or make the current flow to other circuits, which works by controlling the contact or separation of the internal contact. In the process of switching the contact from the contact state to the separation state, the arc is easily formed between the contacts.

[0049] In the switching device 200 provided with the operating mechanism 100, the operating mechanism 100 is provided with a visual window 12 for the user to observe, and the occurrence of the arc burning the visual window 12 can be reduced, thereby reducing the influence of the arc on the visualization of the switching device 200.

[0050] It should be noted that the switch device 200 provided in the present application can be different devices, such as a relay, a contactor, a circuit breaker, a disconnector, a side hanging accessory (auxiliary contact) connected to the contactor, and the like.

[0051] In some embodiments, as shown in Figure 2 and Figure 3 , the switch device 200 can include a moving contact 201 and a stationary contact 202, the moving contact 201 is movably arranged in the accommodating cavity 11, and the stationary contact 202 is fixed in the accommodating cavity 11, and the visual window 12 is opposite to the stationary contact 202. The operating handle 30 is connected with the moving contact 201, and the operating handle 30 can drive the moving contact 201 to move, so that the moving contact 201 contacts with the stationary contact 202 to close the switch device 200, or the moving contact 201 is separated from the stationary contact 202 to open the switch device 200.

[0052] In the embodiments of the present application, the moving contact 201 can move relative to the stationary contact 202, so that the moving contact 201 can contact with the stationary contact 202 to close the switch device 200. Alternatively, the moving contact 201 can be separated from the stationary contact 202 to open the switch device 200.

[0053] Specifically, the operating handle 30 is connected with the moving contact 201, and the moving contact 201 can be driven by the operating handle 30 to move, so as to realize the movement of the moving contact 201 in the accommodating cavity 11. That is, the opening or closing of the switch device 200 can be controlled by the operating handle 30.

[0054] Since the visual window 12 is opposite to the stationary contact 202, a user can observe the stationary contact 202 and components near the stationary contact 202 through the visual window 12. In this way, the visual window 12 can provide a visual window for the stationary contact 202 and the moving contact 201 when the moving contact 201 moves close to the stationary contact 202.

[0055] It should be noted that the moving contact 201 can be provided with a moving contact point facing the stationary contact 202, and the stationary contact 202 can be provided with a stationary contact point facing the moving contact 201. When the moving contact 201 contacts with the stationary contact 202, specifically, the moving contact point contacts with the stationary contact point.

[0056] That is, the moving contact point and the stationary contact point can serve as the aforementioned contact points to maintain the normal operation of the switch device 200.

[0057] The operating mechanism 100 provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0058] Referring to Figure 2 , Figure 3 and Figure 4As shown, the application provides an operating mechanism 100 applied to a switch device 200. The operating mechanism 100 comprises a housing 10, a separation piece 20, an operating handle 30 and an elastic piece 40. The housing 10 has a containing cavity 11 inside. The housing 10 is provided with a visual window 12 penetrating the cavity wall of the containing cavity 11. The separation piece 20 is slidingly arranged in the containing cavity 11 and can be switched between a first position and a second position.

[0059] In the embodiment of the application, the operating mechanism 100 comprises the housing 10, the separation piece 20, the operating handle 30 and the elastic piece 40.

[0060] The housing 10 has the containing cavity 11 inside. The separation piece 20 and the elastic piece 40 are arranged in the containing cavity 11. The operating handle 30 is rotationally connected with the cavity wall of the containing cavity 11. Thus, the operating handle 30 can be rotated to drive the movable contact 201 to move, so as to realize the opening or closing of the switch device 200.

[0061] The visual window 12 is arranged on the housing 10 and penetrates the cavity wall of the containing cavity 11. Thus, the visual window 12 can communicate the containing cavity 11 with the outside of the housing 10. Therefore, the user can observe the situation inside the containing cavity 11 through the visual window 12, so as to master the working condition of the switch device 200.

[0062] During the opening of the switch device 200, the contacts of the switch device 200 are separated, so that an electric arc is formed between the contacts. The electric arc moves in the containing cavity 11 after being formed. During the movement of the electric arc, it is very likely to spray to the visual window 12 and damage the visual window 12.

[0063] In the embodiment of the application, the containing cavity 11 is provided with the separation piece 20 sliding in the containing cavity 11. The separation piece 20 can be switched between the first position and the second position.

[0064] The operating handle 30 and the elastic piece 40 can be driving pieces to drive the separation piece 20 to switch between the first position and the second position.

[0065] Reference Figure 3 and Figure 4 , Figure 3 a schematic view showing the separation piece in the first position, Figure 4 a schematic view showing the separation piece in the second position.

[0066] When the isolation piece 20 is in the first position, the isolation piece 20 is misaligned with the visual window 12. In this way, the part of the accommodation cavity 11 opposite to the visual window 12 can be exposed through the visual window 12. At this time, there is no obstruction between the visual window 12 and the interior of the accommodation cavity 11, and the user can observe the situation inside the accommodation cavity 11 through the visual window 12.

[0067] When the isolation piece 20 is in the second position, the isolation piece 20 is opposite to at least part of the visual window 12. In this way, the isolation piece 20 can shield at least part of the visual window 12. At this time, the isolation piece 20 protects the shielded part of the visual window 12, reducing the possibility of damage to the visual window 12.

[0068] That is, in the present application, the visual window 12 can be protected by the isolation piece 20, reducing the damage of the electric arc to the visual window 12, and thus the influence of the electric arc on the visualization of the switching device 200 can be reduced.

[0069] In the example of the present application, the isolation piece 20 can be driven by the operating handle 30 or the elastic piece 40, so that the isolation piece 20 can slide to switch between the first position and the second position.

[0070] Specifically, the operating handle 30 is arranged in the accommodation cavity 11 and is used to control the closing or opening of the switching device 200. During the process of controlling the closing of the switching device 200 by the operating handle 30, the operating handle 30 drives the isolation piece 20 to slide from the second position to the first position. The elastic piece 40 is located in the accommodation cavity 11, and the two ends of the elastic piece 40 respectively abut against the cavity wall of the accommodation cavity 11 and the isolation piece 20. During the process of controlling the opening of the switching device 200 by the operating handle 30, the elastic piece 40 drives the isolation piece 20 to slide from the first position to the second position.

[0071] Through the above arrangement, when the switching device 200 is in the closing state, the isolation piece 20 is in the first position, the isolation piece 20 is misaligned with the visual window 12, and the user can observe the situation inside the accommodation cavity 11 through the visual window 12. When the switching device 200 is in the opening state, the isolation piece 20 is in the second position, and the isolation piece 20 can shield the visual window 12 to protect the visual window 12.

[0072] In this way, when the operating mechanism 100 controls the switching device 200 to switch from closing to opening, the isolation piece 20 can slide to the second position to shield at least part of the visual window 12. Thus, the isolation piece 20 can isolate at least part of the electric arc generated during the opening, reducing the possibility of damage to the visual window 12 by the electric arc and even causing a safety accident.

[0073] In summary, in the operating mechanism 100 proposed in this application, when the switching device 200 is in the closed state, the user can normally observe the status of the switching device 200 through the viewing window 12.

[0074] When the operating mechanism 100 controls the switching device 200 to open, the elastic element 40 can push the isolating element 20 to slide to the second position. The isolating element 20 can protect the viewing window 12 and reduce the impact of the electric arc on the viewing window 12.

[0075] In this embodiment, during the switching process of the switching device 200 from the closed state to the open state, an electric arc is generated and gradually spreads. At this time, the elastic member 40 can drive the isolator 20 to slide and gradually block the viewing window 12. When the electric arc spreads to the viewing window 12, the arc will be blocked at the isolator 20, reducing the possibility of further spread to the viewing window 12.

[0076] That is, when the switch is opened, the isolating member 20 can gradually block the viewing window 12 until the next time the switch is closed, at which point the isolating member 20 will expose the viewing window 12.

[0077] Thus, during the period from the formation of the electric arc to its complete extinguishing, the isolator 20 can maintain its shielding of the viewing window 12 to block the arc. This reduces the damage to the viewing window 12 caused by the arc, thereby reducing the impact of the arc on the visibility of the switching device 200 and the possibility of causing a safety accident.

[0078] like Figure 4 As shown, the operating mechanism 100 has a first direction X. In this embodiment, the end of the elastic member 40 facing away from the isolator 20 can abut against a cavity wall of the receiving cavity 11 in the first direction X.

[0079] When the isolator 20 is in the second position, the end of the isolator 20 away from the elastic member 40 can abut against another cavity wall of the receiving cavity 11 in the first direction X.

[0080] In order to enable the elastic member 40 to support the isolation member 20 and reduce the possibility of the isolation member 20 falling off, the elastic member 40 can be in a compressed state when the isolation member 20 is in the second position.

[0081] When the isolator 20 slides from the second position to the first position, the sliding of the isolator 20 can further compress the elastic member 40, so that the elastic member 40 can store elastic potential energy.

[0082] When the operating handle 30 is rotated to drive the opening switch device 200 to open, the operating handle 30 is rotated to cancel the pushing of the isolation piece 20. In this process, the elastic piece 40 can gradually release the elastic potential energy to drive the isolation piece 20 to slide. When the operating handle 30 is separated from the isolation piece 20, the operating handle 30 cancels the compression of the elastic piece 40, and the elastic piece 40 can drive the isolation piece 20 to slide to the first position.

[0083] It should be noted that when the isolation piece 20 slides to the first position, the isolation piece 20 can only be opposite to part of the visual window 12. In this way, the isolation piece 20 can protect the part of the visual window 12 opposite to it, reduce the possibility of damaging this part of the visual window 12 by the electric arc, and even causing a safety accident by damaging the operating mechanism 100.

[0084] Alternatively, the isolation piece 20 can have a part opposite to the entire visual window 12, and at this time, the isolation piece 20 can also completely shield the visual window 12. In this way, the isolation piece 20 can protect the entire visual window 12, reduce the possibility of damaging the visual window 12 by the electric arc, and even cause a safety accident by damaging the operating mechanism 100.

[0085] It should also be noted that when the operating mechanism 100 is applied to the switch device 200, and the switch device 200 is provided with a moving contact 201 and a static contact 202, the visual window 12 is opposite to the static contact 202.

[0086] When the moving contact 201 is separated from the static contact 202, an electric arc is generated between the moving contact 201 and the static contact 202. Since the visual window 12 is opposite to the static contact 202, when the isolation piece 20 is in the first position, the user can observe the static contact 202 through the visual window 12, and can directly observe that the moving contact 201 is not in contact with the static contact 202.

[0087] When the visual window 12 is opposite to the static contact 202, and the switch device 200 is switched from the closed state to the open state, the electric arc between the moving contact 201 and the static contact 202 is close to the visual window 12, which is easy to damage the visual window 12.

[0088] The isolation piece 20 provided in the operating mechanism 100 in the present application can protect the visual window 12 and reduce the influence of the electric arc on the visualization of the switch device 200.

[0089] In addition, the elastic piece 40 can be a spring, a spring piece, or other components made of elastic material. The specific type of the elastic piece 40 is not limited in the embodiments of the present application.

[0090] The elastic member 40 drives the isolation member 20 to slide by its elastic potential energy, and can also improve the response speed of the isolation member 20 when sliding from the second position to the first position, and can better protect the visual window 12.

[0091] In addition, in order to improve the service life of the isolation member 20 and improve the protection effect of the visual window 12, the isolation member 20 can be made of an electric arc ablation resistant material, such as tungsten copper alloy or copper chromium alloy, etc.

[0092] In some embodiments, as shown in Figure 2 and Figure 3 The cover plate 18 can be provided on the shell 10, and the cover plate 18 covers the visual window 12, and the cover plate 18 is a transparent structure.

[0093] Through the above setting, the cover plate 18 covers the visual window 12, and the cover plate 18 can close the position of the visual window 12 on the shell 10, reducing the possibility of dust and the like entering the accommodation cavity 11 through the visual window 12 and affecting the work of the components in the accommodation cavity 11.

[0094] And since the cover plate 18 is a transparent structure, the possibility of the cover plate 18 blocking the visual window 12 and affecting the visualization of the switch device 200 can also be reduced. That is, when the user needs to observe the working condition of the switch device 200 through the visual window 12, the user can observe through the cover plate 18.

[0095] In the case of providing the cover plate 18 on the visual window 12, the electric arc generated is easy to spray to the cover plate 18, and then burn or blacken the cover plate 18, so that the transparency of the cover plate 18 is reduced or opaque. In this way, the cover plate 18 will affect the visualization of the switch device 200, thereby reducing the user's observation experience.

[0096] And due to the setting of the isolation member 20, the isolation member 20 can isolate the electric arc sprayed to the cover plate 18, reduce the possibility of the electric arc directly acting on the cover plate 18, and then burning or blackening the cover plate 18.

[0097] Of course, the cover plate 18 can also not be provided on the visual window 12, so that the user can directly observe the working state of the switch device 200 through the visual window 12. At this time, if the electric arc sprays to the visual window 12, it is easy to damage the shell 10 near the visual window 12, or even directly spray out from the visual window 12, threatening the safety of the user.

[0098] In this case, the setting of the isolation member 20 can block the electric arc, reduce the possibility of the electric arc spraying out from the visual window 12, and improve the safety of the switch device 200 in use.

[0099] In some embodiments, as shown inFigure 4 and Figure 5 As shown in FIG. 2, the isolation piece 20 can slide in the first direction X. The isolation piece 20 can include a sliding portion 21, a connecting portion 22, and a baffle 23. In the first direction X, the connecting portion 22 has opposite first and second ends 221 and 222, the first end 221 is away from the visual window 12, the sliding portion 21 is connected to the first end 221, and the baffle 23 is connected to the second end 222. When the isolation piece 20 is in the second position, the baffle 23 is opposite to at least part of the visual window 12.

[0100] In the embodiment, the isolation piece 20 slides in the first direction X in the accommodating cavity 11. When the isolation piece 20 slides in the first direction X, the relative position relationship between the isolation piece 20 and the visual window 12 can change, so that the isolation piece 20 can shield the visual window 12 or be misaligned with the visual window 12.

[0101] The isolation piece 20 includes the sliding portion 21, the connecting portion 22, and the baffle 23, and the sliding portion 21 and the baffle 23 are both connected to the connecting portion 22.

[0102] Specifically, the connecting portion 22 has opposite first and second ends 221 and 222 in the first direction X, the sliding portion 21 can be connected to the first end 221, and the baffle 23 can be connected to the second end 222.

[0103] Since the first end 221 is away from the visual window 12, in the isolation piece 20, the sliding portion 21 is located on the side away from the visual window 12, and the baffle 23 is located on the side close to the visual window 12. Thus, when the isolation piece 20 slides from the first position to the second position, the baffle 23 can first slide to the position opposite to the visual window 12.

[0104] Based on this, when the isolation piece 20 is in the second position, the visual window 12 can be protected by the baffle 23, and the sliding stroke of the isolation piece 20 when it plays a protection role can be reduced. Thus, the space of the accommodating cavity 11 occupied by the isolation piece 20 to meet the sliding stroke can be reduced, so that the influence of the setting of the isolation piece 20 on other components in the accommodating cavity 11 can be reduced, and the possibility of increasing the size of the accommodating cavity 11 can be reduced.

[0105] As shown in FIG. 3, the operating handle 30 is connected with a driving rod 301, and the operating handle 30 can drive the isolation piece 20 through the driving rod 301. Figure 3 Figure 4 As shown in FIG. 3, the operating handle 30 is connected with a driving rod 301, and the operating handle 30 can drive the isolation piece 20 through the driving rod 301.

[0106] The driving rod 301 can be located between the sliding portion 21 and the baffle 23, and during the process that the operating handle 30 controls the closing of the switching device 200, the driving rod 301 can push the sliding portion 21, so that the isolation piece 20 slides from the second position to the first position.​

[0107] For example, the operating mechanism 100 is placed in the orientation shown in the illustrated state, the first direction X is consistent with the left-right direction. Figure 4

[0108] In combination with the above Figure 2 The static contact 202 and the visual window 12 are located on the right side of the accommodation cavity 11, the dynamic contact 201 is arranged on the left side of the static contact 202, and the operating handle 30 is located on the left side of the visual window 12.

[0109] When the switch device 200 is in the open state, the operating handle 30 can be rotated clockwise to push the dynamic contact 201 to the right side, so that the dynamic contact 201 moves to the side close to the static contact 202, thereby achieving the closing of the switch device 200. When the switch device 200 is in the closed state, the operating handle 30 can be counterclockwise rotated to pull the dynamic contact 201 to the left side, so that the dynamic contact 201 moves to the side away from the static contact 202, thereby achieving the opening of the switch device 200.

[0110] When the operating handle 30 controls the switch device 200 to switch from the open state to the closed state, the operating handle 30 can be rotated clockwise, and the driving rod 301 can be rotated synchronously with the operating handle 30.

[0111] In this process, the driving rod 301 is first rotated between the sliding part 21 and the baffle 23, and then can abut against the sliding part 21. With the continuous rotation of the driving rod 301, the driving rod 301 can push the sliding part 21, so that the sliding part 21 can slide to the left. In the process of sliding of the sliding part 21, the sliding part 21 can drive the baffle 23 to slide through the connecting part 22, so that the baffle 23 is dislocated from the visual window 12.

[0112] In some embodiments, as shown in Figure 6 and Figure 7 The shell 10 can further be provided with an operation hole 13 spaced from the visual window 12, the operation hole 13 penetrating the cavity wall of the accommodation cavity 11. The operating handle 30 includes an operating rod 31 and a connecting piece 32, the connecting piece 32 being rotationally connected to the cavity wall of the accommodation cavity 11, and the operating rod 31 being connected to the connecting piece 32, and at least part of the operating rod 31 extending out of the shell 10 through the operation hole 13, the operating rod 31 being used to drive the connecting piece 32 to rotate, so that the connecting piece 32 controls the closing or opening of the switch device 200. The driving rod 301 is connected to the side of the connecting piece 32 away from the operation hole 13.

[0113] Since the operation hole 13 penetrates the cavity wall of the accommodation cavity 11, the operation hole 13 communicates the accommodation cavity 11 with the outside of the operating mechanism 100.

[0114] ​Based on this, after the operating handle 30 is installed on the housing 10, part of the operating handle 30 can be located in the receiving cavity 11, and another part of the operating handle 30 can extend out through the operating hole 13.

[0115] Specifically, the operating handle 30 includes an operating rod 31 and a connector 32. The connector 32 can be connected to the cavity wall of the receiving cavity 11 and is located in the receiving cavity 11. The operating rod 31 can be connected to the connector 32 at a position facing the operating hole 13, so that the operating rod 31 can extend through the operating hole 13.

[0116] Thus, the operating lever 31 can serve as the part operated by the user, and the connecting member 32 can be connected to the moving contact 201. Therefore, when the user controls the operating lever 31 to rotate, the connecting member 32 can rotate and control the movement of the moving contact 201, so that the moving contact 201 contacts or separates from the stationary contact 202.

[0117] Specifically, the drive rod 301 can be connected to the side of the connector 32 away from the operating hole 13. In this way, when the drive rod 301 rotates, it can push against the sliding part 21 so as to realize the sliding of the isolator 20 from the second position to the first position.

[0118] It should be noted that, in order to reduce the number of parts in the operating mechanism 100 and lower the manufacturing difficulty, the operating handle 30 and the drive rod 301 can be integrally formed. In this way, the connector 32, the operating rod 31, and the drive rod 301 can be formed in a single processing step, and the operating handle 30 and the drive rod 301 can be installed as a single structural component during installation.

[0119] Of course, the operating handle 30 and the drive rod 301 can also be connected in other ways. For example, the drive rod 301 can be connected to the operating handle 30 by welding, bonding, or screwing. This application embodiment does not specifically limit the specific connection method of the operating handle 30 and the drive rod 301.

[0120] In some embodiments, such as Figures 2 to 4 As shown, when the switching device 200 is in the closed state, the operating handle 30 is in contact with a portion of the isolating member 20. During the process of rotating the operating handle 30 to control the switching device 200 to switch to the open state, the contact portion between the operating handle 30 and the isolating member 20 gradually decreases. When the operating handle 30 rotates to a first angle, the operating handle 30 separates from the isolating member 20. When the operating handle 30 rotates to a second angle, the switching device 200 completes the state switch. The first angle is smaller than the second angle.

[0121] That is, in the embodiment of the present application, the operating handle 30 is in abutment with the partial isolator 20 when the switching device 200 is in the closed state. The operating handle 30 is separated from the isolator 20 when the switching device 200 is in the open state.

[0122] Thus, in the process of the operating handle 30 controlling the switching device 200 to switch from the closed state to the open state, the abutment area between the operating handle 30 and the isolator 20 gradually decreases, and at the same time, the elastic member 40 can gradually release the elastic potential energy under the action of its own elasticity to push the isolator 20 to slide to the first position.

[0123] And, by setting the first angle to be smaller than the second angle, the operating handle 30 can be separated from the isolator 20 earlier.

[0124] Thus, in the process of the operating handle 30 controlling the switching device 200 to switch from the closed state to the open state, the operating handle 30 can first rotate to the first angle to be separated from the isolator 20, and then rotate to the second angle to complete the open action of the switching device 200.

[0125] Thus, the operating handle 30 can first cancel the force on the isolator 20, so that the elastic member 40 can be elongated and push the isolator 20 to the first position. At the same time, the operating handle 30 continues to rotate, and the switching device 200 can complete the switching action.

[0126] Based on this, when the operating handle 30 rotates and has not completed the open switching, the isolator 20 can slide to the first position under the action of the elastic member 40 to protect the visual window 12.

[0127] That is, in the embodiment of the present application, the protection of the isolator 20 to the visual window 12 can be completed in the process of the switching device 200 switching from the closed state to the open state, and before the completion of the open.

[0128] Thus, the response speed of the isolator 20 can be improved, so that the isolator 20 can shield the visual window 12 in the initial stage of the switching device 200 switching from the closed state to the open state, and improve the isolation and blocking effect of the electric arc.

[0129] That is, the setting of the present application can reduce the possibility that the isolator 20 slides to the first position to shield the visual window 12 when the electric arc has been generated or even spread to the visual window 12, and the isolator 20 can further improve the protection effect of the visual window 12.

[0130] It should be noted that the present application realizes the earlier separation of the operating handle 30 and the isolation piece 20 through the constraint relationship between the first angle and the second angle.

[0131] In order to realize the above setting, the operating handle 30 can be made to have less contact with the isolation piece 20 in the closed state, as shown in FIGS. 1 and 2. Figure 2 and Figure 3 In this way, the operating handle 30 can be separated from the isolation piece 20 earlier.

[0132] In the embodiments of the present application, the first angle and the second angle can be set according to the type of the switching device 200.

[0133] For example, when the switching device 200 is a circuit breaker, the rotating angle of the operating handle 30 when the circuit breaker is opened is generally between 45° and 90°, such as 45°, 48°, 50°, 53°, and the like.

[0134] At this time, the first angle can be between 15° and 25°, such as 15°, 18°, 20°, 22°, and the like.

[0135] For other types of switching devices 200, the first angle and the second angle can be set according to their own parameters, which will not be described here in the embodiments of the present application.

[0136] It should also be noted that when the operating handle 30 further includes a driving rod 301, and the isolation piece 20 includes a sliding portion 21, the driving rod 301 can be separated from the sliding portion 21 earlier.

[0137] Specifically, the length of the driving rod 301 can be set to be shorter. In this way, the driving rod 301 can have less contact with the sliding portion 21 in the closed state, facilitating the separation of the driving rod 301 and the sliding portion 21.

[0138] Here, the first angle is 45° and the second angle is 20°. When the switching device 200 is in the closed state, the operating handle 30 can be rotated to switch the switching device 200 to the open state.

[0139] When the rotating angle is between 0-20°, the contact between the driving rod 301 and the sliding portion 21 gradually decreases, and the compression of the elastic member 40 by the driving rod 301 also gradually decreases.

[0140] When the rotating angle is 20°, the driving rod 301 is separated from the sliding portion 21, at which time the driving rod 301 cancels the pushing of the isolation piece 20 and the compression of the elastic member 40. The elastic member 40 can push the isolation piece 20 to slide to the first position under the action of its own elastic force.

[0141] With continuous rotation of the operating handle 30, when the rotation angle is 45°, the switching device 200 completes switching and is in the open state.

[0142] Of course, as shown in Figure 4 , the driving rod 301 can also be set longer, at which time, when the switching device 200 switches from the closed state to the open state, the driving rod 301 separates from the isolation piece 20 later. The specific setting can be made according to parameters such as the performance of the switching device 200, the first angle, and the second angle.

[0143] In some embodiments, as shown in Figure 5 and Figure 6 , a guide groove 14 extending in the first direction X can be arranged on the cavity wall of the accommodating cavity 11, and the sliding part 21 is embedded in the guide groove 14 and can slide in the guide groove 14.

[0144] Through the above arrangement, the sliding part 21 can be slidingly arranged in the guide groove 14. On the one hand, the guide groove 14 cooperates with the sliding part 21 to achieve the installation of the isolation piece 20 in the accommodating cavity 11.

[0145] On the other hand, when the isolation piece 20 slides, the guide groove 14 guides the sliding of the sliding part 21, reducing the possibility of deviation of the isolation piece 20 during sliding.

[0146] In this way, it can be further ensured that the isolation piece 20 can slide to a position where the baffle 23 can shield the visual window 12, reducing the possibility that the baffle 23 loses the protection effect on the visual window 12.

[0147] In some embodiments, as shown in Figures 4 to 6 , a first guide plate 15 and a second guide plate 16 can be connected to the cavity wall of the accommodating cavity 11, the first guide plate 15 and the second guide plate 16 are spaced apart, and the first guide plate 15 and the second guide plate 16 both extend in the first direction X. The surface of the first guide plate 15 facing the second guide plate 16 and the surface of the second guide plate 16 facing the first guide plate 15 form the groove wall of the guide groove 14, and the sliding part 21 is embedded between the first guide plate 15 and the second guide plate 16.

[0148] Through the above arrangement, the first guide plate 15 and the second guide plate 16 can cooperate to install and guide the sliding part 21.

[0149] Among them, the first guide plate 15 and the second guide plate 16 are spaced apart, so that the gap between the first guide plate 15 and the second guide plate 16 can provide installation space for the sliding part 21.

[0150] That is, the sliding portion 21 can be arranged in the gap between the first guide plate 15 and the second guide plate 16, so that the surface of the first guide plate 15 facing the second guide plate 16 and the surface of the second guide plate 16 facing the first guide plate 15 can form the groove wall of the guide groove 14.

[0151] Since the first guide plate 15 and the second guide plate 16 both extend along the first direction X, the gap between the first guide plate 15 and the second guide plate 16 also extends along the first direction X. In this way, the sliding portion 21 can be provided with a sliding space, and the possibility that the arrangement of the first guide plate 15 and the second guide plate 16 affects the sliding of the sliding portion 21 can be reduced.

[0152] In this way, during the sliding of the isolation piece 20, the sliding portion 21 can slide along the surface of the first guide plate 15 facing the second guide plate 16 and the surface of the second guide plate 16 facing the first guide plate 15.

[0153] It should be noted that, as shown in Figure 6 The accommodating cavity 11 can also be provided with a limiting plate 17 on the cavity wall. The limiting plate 17 is located on the side of the first guide plate 15 away from the viewing window 12, and is connected with the first guide plate 15 and the second guide plate 16. In this way, the limiting plate 17 can close the guide groove 14.

[0154] At this time, the end of the elastic piece 40 away from the isolation piece 20 can abut against the limiting plate 17.

[0155] Since the sliding piece will press the elastic piece 40 when the isolation piece 20 slides from the first position to the second position, the elastic piece 40 is compressed. The arrangement of the limiting plate 17 can limit the sliding of the isolation piece 20, reducing the possibility that excessive sliding of the limiting plate 17 causes the sliding portion 21 to compress the elastic piece 40 too much, causing damage to the elastic piece 40.

[0156] It should be further noted that, in addition to arranging the first guide plate 15 and the second guide plate 16 to form the guide groove 14, the guide groove 14 can also be formed in other ways.

[0157] For example, part of the material on the cavity wall of the accommodating cavity 11 can also be directly removed to form the inwardly recessed guide groove 14.

[0158] At this time, the connecting portion 22 and the sliding portion 21 can both be arranged in the guide groove 14.

[0159] In some embodiments, the isolation piece 20 can play an indicating role. The isolation piece 20 can have different arrangements, which will be specifically described below by taking two ways as examples.

[0160] In the first way, the isolation piece 20 is a non-transparent structure.

[0161] Thus, the isolation piece 20 is colored, and the portion of the isolation piece 20 opposite the visual window 12 can be observed by the user when the isolation piece 20 slides to the second position.

[0162] Through the above arrangement, when the baffle 23 shields the visual window 12 to protect the visual window 12, the user can observe the colored isolation piece 20 through the visual window 12. The isolation piece 20 can indicate the state of the switching device 200.

[0163] That is, when the user observes through the visual window 12 and observes the colored isolation piece 20, it can be determined that the switching device 200 is in the open state based on the observation.

[0164] It should be noted that the isolation piece 20 can be sprayed with a colored coating to form a non-transparent isolation piece 20, or the isolation piece 20 can be made of a material that has a color that is easy to observe.

[0165] In the second way, the isolation piece 20 is provided with an indication structure, and at least part of the indication structure is opposite the visual window 12 when the isolation piece 20 is in the second position. The indication structure is used to indicate that the switching device 200 is in the open state.

[0166] Through the above arrangement, when the baffle 23 shields the visual window 12 to protect the visual window 12, the user can observe the indication structure through the visual window 12. Thus, the isolation piece 20 can indicate the state of the switching device 200.

[0167] That is, when the user observes through the visual window 12 and observes the indication structure, it can be determined that the switching device 200 is in the open state based on the observation.

[0168] It should be noted that the indication structure can have different arrangements, for example, a pattern that can have an indication function, such as "open" or "X", etc., can be etched on the isolation piece 20.

[0169] In the present embodiment, the isolation piece 20 as a whole can be transparent, and the indication structure can have a color.

[0170] In the present embodiment, the visual window 12 itself can also make the stationary contact 202 and the components near the stationary contact 202 visible, thereby being able to indicate the state of the switching device 200.

[0171] Thus, the switching device 200 provided with the above operation mechanism 100 has a double indication function. That is, the state of the switching device 200 can be indicated through the visual window 12 and the isolation piece 20.

[0172] When the isolation piece 20 shields the visual window 12, the user can determine the state of the switching device 200 through the isolation piece 20. In this way, when the isolation piece 20 shields the visual window 12, the possibility that the user cannot intuitively observe the state of the moving contact 201 and the static contact 202 through the visual window 12 can be reduced, and the possibility of misjudging the state of the switching device 200 can be reduced.

[0173] In addition, in the embodiment of the present application, as shown in Figure 1 and Figure 2 The shell 10 can include a base 101 and an upper cover 102, and the base 101 and the upper cover 102 can be buckled to form the accommodation cavity 11.

[0174] In this way, the operation handle 30, the isolation piece 20, and the like can be conveniently arranged in the accommodation cavity 11.

[0175] In the case where the base 101 and the upper cover 102 are arranged on the shell 10, the visual window 12 can be arranged on the base 101 and / or the upper cover 102.

[0176] Specifically, the visual window 12 can be arranged on the side of the base 101 facing the upper cover 102, and the side of the upper cover 102 facing the base 101. The part of the visual window 12 located on the side of the base 101 facing the upper cover 102 can be in communication with the part of the visual window 12 located on the side of the upper cover 102 facing the base 101, and the two parts can form the visual window 12.

[0177] Of course, the visual window 12 can also be arranged only on the base 101, or the visual window 12 can also be arranged only on the upper cover 102.

[0178] In addition, similar to the visual window 12, the operation hole 13 can also be arranged on the base 101 and / or the upper cover 102.

[0179] In the embodiment of the present application, when the switching device 200 is tripped and an electric arc appears in the accommodation cavity 11, the elastic piece 40 can push the isolation piece 20, so that the isolation piece 20 slides to the second position. In this way, the isolation piece 20 can protect the visual window 12, reduce the damage of the electric arc to the visual window 12, and further reduce the influence of the electric arc on the visualization of the switching device 200 and the possibility of causing a safety accident.

[0180] Finally, it should be noted that the above embodiments are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An operating mechanism applied to a switching device, characterized in that, The operation mechanism comprises: a housing with an accommodating cavity inside, the housing being provided with a visual window penetrating a cavity wall of the accommodating cavity; a partitioning member slidingly arranged in the accommodating cavity and capable of switching between a first position and a second position; an operation handle rotatably arranged in the accommodating cavity and used for controlling the switching device to close or open, the operation handle driving the partitioning member to slide from the second position to the first position during the process of controlling the switching device to close; a resilient member located in the accommodating cavity, two ends of the resilient member being respectively in abutment with a cavity wall of the accommodating cavity and the partitioning member, the resilient member driving the partitioning member to slide from the first position to the second position during the process of controlling the switching device to open; wherein the partitioning member is misaligned with the visual window when the partitioning member is in the first position, and the partitioning member is opposite to at least part of the visual window when the partitioning member is in the second position; wherein the operation handle is in abutment with part of the partitioning member when the switching device is in the closed state; during the process of the operation handle rotating to control the switching device to switch to the open state, the abutment part of the operation handle with the partitioning member gradually decreases, the operation handle is separated from the partitioning member when the operation handle is rotated by a first angle, and the switching device completes the state switching when the operation handle is rotated by a second angle; wherein the first angle is smaller than the second angle.

2. The operating mechanism according to claim 1, characterized in that The operation mechanism has a first direction, and the partitioning member is slidable along the first direction; the partitioning member comprises a sliding portion, a connecting portion and a baffle, the connecting portion has opposite first and second ends in the first direction, the first end is away from the visual window, the sliding portion is connected to the first end, and the baffle is connected to the second end, the baffle is opposite to at least part of the visual window when the partitioning member is in the second position; the operation handle is connected with a driving rod, the driving rod is located between the sliding portion and the baffle, and the driving rod pushes the sliding portion to make the partitioning member slide from the second position to the first position during the process of the operation handle controlling the switching device to close.

3. The operating mechanism according to claim 2, characterized in that The housing is further provided with an operation hole spaced apart from the visual window, the operation hole penetrating the cavity wall of the accommodating cavity; the operation handle comprises an operation rod and a connecting member, the connecting member is rotatably connected to the cavity wall of the accommodating cavity, the operation rod is connected to the connecting member, and at least part of the operation rod extends out of the housing through the operation hole, the operation rod is used to drive the connecting member to rotate to make the connecting member control the switching device to close or open; the driving rod is connected to the side of the connecting member away from the operation hole.

4. The operating mechanism of claim 2, wherein The cavity wall of the accommodating cavity is provided with a guide groove extending along the first direction, and the sliding portion is embedded in the guide groove and is slidable in the guide groove.

5. The operating mechanism of claim 1, wherein The partitioning member is a non-transparent structure.

6. The operating mechanism of claim 1, wherein The isolation piece is provided with an indication structure, at least part of the indication structure is opposite to the visual window when the isolation piece is in the second position, and the indication structure is used for indicating that the switch device is in an open state.

7. The operating mechanism of claim 1, wherein The shell is provided with a cover plate, the cover plate covers the visual window, and the cover plate is a transparent structure.

8. A switching device, characterized by The switch device comprises the operating mechanism according to any one of claims 1-7.

9. The switching device of claim 8, wherein, The switch device comprises a moving contact and a stationary contact, the moving contact is movably arranged in the accommodating cavity, the stationary contact is fixed in the accommodating cavity, and the visual window is opposite to the stationary contact. The operating handle is connected with the moving contact, the operating handle can drive the moving contact to move, so that the moving contact contacts the stationary contact to make the switch device close, or the moving contact is separated from the stationary contact to make the switch device open.

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