Panel assembly of switch and switch

Abstract

The utility model relates to the field of low-voltage switch equipment, in particular to a switch panel assembly and a switch. Comprising a panel provided with a manual operation hole and a locking piece through hole, and the manual operation hole is used for operating a handle; the movable door is movably installed on the panel and has electric, manual and locking function positions, and the manual operation hole is exposed only at the manual position. The locking piece is movably installed on the panel and has an unlocking position and a locking position, and the lock can be locked in the locking position. When the movable door is in the locking position and the locking piece is in the locking position, the movable door is locked; when the locking piece is unlocked, the movable door can move. According to the design, switching of electric, manual and locking functions is achieved through multiple positions of the movable door, and different requirements are met; mistaken touch is avoided only by manually exposing the position hole; and the locking piece can lock the movable door at the locking position, so that the personnel safety during electrician operation can be guaranteed, and the loss caused by mistaken switching-off during equipment operation can be prevented.

Description

A switch panel assembly and a switch Technical Field

[0001] This application relates to the field of low-voltage switchgear, specifically to a switch panel assembly and a switch. Background Technology

[0002] Currently, an increasing number of switches, especially in the photovoltaic field, are equipped with electrically operated mechanisms for remote control. These switches typically possess both manual and electrically operated functions, allowing for both manual on-site operation and remote control of opening and closing. To achieve controllable switching between these two functions, existing technologies often incorporate a manual / automatic switching function within the switch. For example, Chinese Patent CN 2023120556632.0 discloses a faceplate assembly for a switchgear, comprising: a faceplate including a manual operating hole adapted to receive an operating handle; a movable door movably mounted to the faceplate; and a trigger switch mounted on the movement path of the movable door and configured to be selectively triggered based on the position of the movable door. The trigger switch is located in the control circuit of the switchgear to allow the switchgear to automatically operate in its switching state when the trigger switch is on. The movable door is slidable relative to the faceplate to expose or cover the manual operating hole depending on its position. Thus, the faceplate assembly enables the switching of multiple operating states of the switchgear. However, the above structure has the following problems: when electrical work is required, the power needs to be disconnected to ensure personnel safety, and a lock is necessary to prevent others from operating it by mistake. In addition, in some critical locations, the switch needs to be locked when it is closed to prevent the equipment from being disconnected due to intentional or unintentional actions by others, which could lead to significant production losses. Summary of the Invention

[0003] In view of the shortcomings of the prior art, this application provides a switch panel assembly and a switch.

[0004] To achieve the above objectives, the technical solution of this application is as follows: A switch panel assembly includes: a panel having a manual operation hole and a locking member through hole, the manual operation hole being adapted to receive an operating handle; a movable door being movably mounted to the panel, and its movement path having an electric function position, a manual function position, and a locking function position, the movable door being movable relative to the panel, wherein the manual operation hole is exposed only in the manual function position and obscured in other positions on the movement path of the movable door; a locking member being movably mounted to the panel, movable relative to the locking member through hole, and its movement path having an unlock position and a locking position protruding relative to the outer surface of the panel, the protruding portion being lockable; when the movable door is in the locking function position, the locking member locks the movable door in the locking function position, preventing it from moving; when the locking member is in the unlock position, the movable door is movable between the electric function position, the manual function position, and the locking function position.

[0005] Furthermore, an elastic element is provided, which acts on the locking element to form an elastic force tending towards the locking position.

[0006] Furthermore, the locking member is provided with a padlock hole. When the locking member is in the locked position, the padlock hole is located on the part of the locking member that protrudes relative to the outer surface of the panel and is used for padlocking. When the locking member is in the unlocked position, the padlock hole is at least partially located in the locking member through hole of the panel or located on the inner side of the panel.

[0007] Furthermore, a latching element is provided, which is movably mounted on the panel and has a locked position and an unlocked position. When the latching element is in the unlocked position, it limits the locking element in the unlocked position, keeping it in the unlocked position. When the latching element is in the locked position, it releases the limiting effect on the locking element in the unlocked position, allowing it to move to the locked position under the action of the elastic element. When the locking element is in the locked position, it limits the latching element in the locked position, keeping it in the locked position. The manual function position of the movable door is located between the electric function position and the locking function position, so that its movement path includes a switching path between the manual function position and the electric function position, and a switching path between the manual function position and the locking function position. A partial transmission engagement structure is provided between the latching element and the movable door. When the movable door moves on the switching path between the manual function position and the electric function position, the latching element remains in the unlocked position. When the movable door moves on the switching path between the manual function position and the locking function position, the latching element and the movable door are linked. When the movable door moves to the locking function position, the latching element moves to the locked position.

[0008] Furthermore, the locking member slides linearly along a first direction and has a locking hole and a stop arranged sequentially along the first direction; the latching member slides linearly along a second direction and has a locking block, which is adapted to the locking hole so that it can be inserted into the locking hole; the first direction and the second direction are perpendicular; when the latching member is in the unlocked position, the locking block extends into the locking hole of the locking member in the unlocked position and forms a blocking effect along the first direction, so that it remains in the unlocked position; when the latching member is in the locked position, the locking block leaves the locking hole of the locking member in the unlocked position; when the locking member is in the locked position, the stop moves to the side of the locking block of the latching member in the locked position that tends towards the unlocked position direction, so that it cannot move towards the unlocked position direction.

[0009] Furthermore, the panel has an operating plane perpendicular to the first direction and parallel to the second direction. The manual operation hole and the locking member through hole are both located on the operating plane. The locking member through hole is adapted to the shape of the locking member so that it can limit the locking member to slide linearly only in the first direction. The panel is connected to a first limiting frame, and a limiting track is formed between the first limiting frame and the panel so that the locking member can slide linearly only in the second direction.

[0010] Furthermore, the first limiting frame is provided with a through hole for the locking member to pass through; the elastic member is a tension spring, the first limiting frame is provided with a first connecting part for connecting the elastic member, and the locking member is provided with a second connecting part for connecting the elastic member on the side of the first limiting frame away from the locking member.

[0011] Furthermore, the partial transmission and engagement structure includes a transmission groove provided on the movable door, a connecting hole provided on the locking member, and a connecting rod connecting the transmission groove and the connecting hole, wherein the transmission groove extends along the moving direction of the movable door.

[0012] Furthermore, the movable door has a pivot that is pivotally connected to the panel, and the movable door has a swing handle that extends out of the manual operation hole. The swing handle allows the movable door to rotate around the pivot and switch between an electric function position, a manual function position, and a locking function position. The transmission groove is an arc-shaped groove centered on the pivot. The pivot extends along a third direction, which is perpendicular to the first direction and perpendicular to the second direction.

[0013] A switch includes an electric operating mechanism, an operating shaft, a trigger switch, and a panel assembly of the switch as described above; the trigger switch is mounted on the movement path of the movable door and configured to be triggered only when the movable door is in an electrically functional position; the trigger switch is disposed in the control circuit of the electric operating mechanism to allow the electric operating mechanism to operate the switch in a switching state when the trigger switch is turned on; the operating shaft is disposed corresponding to a manual operating hole.

[0014] The beneficial effects of this application are: the switch panel assembly of this application realizes the controllable switching of electric, manual and locking functions through the multi-position design of the movable door, which meets the operation needs of different scenarios; only the manual function position exposes the operation hole to avoid accidental touch in non-manual state; the locking member can lock the movable door in the locking position, which can not only ensure the safety of personnel during electrician operation, but also prevent the equipment from being accidentally tripped during operation, resulting in losses. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0016] Figure 1 is a schematic diagram of the operating mechanism of a switch provided in an embodiment of this application;

[0017] Figure 2 is a schematic diagram of the structure of a panel provided in one embodiment of this application;

[0018] Figure 3 is a schematic diagram of the structure of the panel assembly after the panel is hidden according to an embodiment of this application;

[0019] Figure 4 is a schematic diagram of the structure of a movable door provided in an embodiment of this application, where (a) and (b) are perspective views from different angles.

[0020] Figure 5 is a structural schematic diagram of a locking component provided in one embodiment of this application;

[0021] Figure 6 is a structural schematic diagram of a locking member provided in one embodiment of this application;

[0022] Figure 7 is a cross-sectional view of a panel assembly provided in an embodiment of this application. (a), (b), and (c) show the states of the movable door moving to the electric function position, the manual function position, and the locking function position, respectively, and the locking element in (c) is in the unlocked position.

[0023] Figure 8 is a cross-sectional view of the locking member and the fastener mating structure provided in an embodiment of this application. (a) and (b) show the states where both are in the unlocked position and the locked position, respectively.

[0024] Figure 9 is a schematic diagram of the operating mechanism of a switch provided in an embodiment of this application after the panel is hidden;

[0025] Figure 10 is a schematic diagram of the structure of an operation indicator provided in an embodiment of this application;

[0026] Figure 11 is an exploded view of a control component provided in one embodiment of this application;

[0027] In the picture,

[0028] Panel-1, manual operation hole-11, locking component through hole-12, through hole-13, operating shaft opening and closing indicator window-14, first limit frame-15, first connecting part-151, second limit frame-16, pivot support hole-161, arc-shaped hole-162, operating handle mounting slot-17;

[0029] Movable door-2, swing handle-21, pivot hole-22, transmission groove-231, locking groove-232, operation window-24, trigger part-25, first limit protrusion-26, gear positioning groove-27;

[0030] Locking element-3, padlock hole-31, locking hole-32, stop-block-33, second connecting part-34, elastic element-35, extension arm-36, actuating groove-37;

[0031] Locking fastener-4, locking block-41, connecting hole-42;

[0032] Linkage -5;

[0033] Operating handle -6;

[0034] Operating shaft-7, operating indicator-71, closing indicator-72, opening indicator-73, second limit protrusion-74;

[0035] Electric operating mechanism -8;

[0036] Control components-9, trigger switch-91, circuit board-92, mounting base plate-93, gear positioning component-94. Detailed Implementation

[0037] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0038] 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 herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0039] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0040] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0043] It should be noted that in this application, the words "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of words such as "in some embodiments," "exemplarily," and "for example" is intended to present related concepts in a specific manner, meaning that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0044] Based on this, to improve the problems in related technologies, this application provides a switch, which can be an isolating switch, a changeover switch, etc. Figure 1 shows the operating mechanism of the switch, which includes a panel assembly. This panel assembly enables switching between electric operation, manual operation, and locking functions of the switch. In the electric operation function, the switch's operating mechanism allows for electric operation of opening and closing actions but cannot be manually operated. In the manual operation function, the switch's operating mechanism allows for manual operation of opening and closing actions but cannot be electrically operated. In the locking function, the switch's operating mechanism cannot be operated electrically or manually, thereby preventing misoperation and ensuring safety.

[0045] To achieve the switching of the above functions, specifically, the panel assembly includes a panel 1 as shown in Figure 2 and internal components as shown in Figure 3. As shown in Figure 2, the panel 1 is provided with a manual operation hole 11 and a locking through hole 12, and the manual operation hole 11 is adapted to receive the operating handle 6. As shown in Figure 3, the internal components include a movable door 2 and a locking member 3. The movable door 2 is movably mounted to the panel 1, and its movement path has an electric function position, a manual function position, and a locking function position. The movable door 2 can move relative to the panel 1. On the movement path of the movable door 2, the manual operation hole 11 is exposed only in the manual function position and is covered in other positions. The locking member 3 is movably mounted to the panel 1, and its movement path has an unlock position and a locking position that protrudes relative to the outer surface of the panel 1 and the protruding part can be hooked. When the movable door 2 is in the locking function position, the locking member 3 locks the movable door 2 in the locking function position, preventing it from moving. When the locking member 3 is in the unlock position, the movable door 2 can move between the electric function position, the manual function position, and the locking function position.

[0046] The function conversion is achieved by switching the three positions of the movable door 2. Combined with the locking mechanism of the locking element 3, the problem that the existing technology cannot simultaneously meet the requirements of manual / electric switching and padlock anti-misoperation is solved, and the safety of the switch in critical locations is improved.

[0047] Specifically, as shown in Figure 4, the movable door 2 is provided with an operation window 24. When the movable door 2 is in the manual function position, the operation window 24 corresponds to the position of the manual operation hole 11, forming a through channel through which the operation handle 6 can pass. When the movable door 2 is in the non-manual function position, the operation window 24 is misaligned with the position of the manual operation hole 11, partially or completely blocking the manual operation hole 11, so that the operation handle 6 cannot pass through.

[0048] Optionally, in some embodiments, an elastic element 35 is provided, which acts on the locking member 3 to form an elastic force tending towards the locked position. The elastic element 35 can be a spring, torsion spring, metal leaf spring, or other elastic element known in the art. The elastic element 35 can keep the locking member 3 in the locked position, and can be pushed to the unlocked position by external force, thereby allowing the movable door to move. In the above embodiments, the locking member 3 in the unlocked position can protrude relative to the surface of the panel 1, or it can be located in the locking member through hole 12 or on the inner side of the panel 1. As an alternative embodiment, the elastic element 35 can be omitted, and the locking member 3 can be pushed and pulled entirely by human force. In the above alternative embodiments, the locking member 3 in the unlocked position needs to protrude relative to the surface of the panel 1 so that it can be pulled by external force, but this operation is relatively more cumbersome.

[0049] Optionally, in some embodiments, the locking member 3 is provided with a padlock hole 31. When the locking member 3 is in the locked position, the padlock hole 31 is located on the portion of the locking member 3 that protrudes relative to the outer surface of the panel 1, and is used for padlocking. When the locking member 3 is in the unlocked position, the padlock hole 31 is at least partially located within the locking member through hole 12 of the panel 1 or located on the inner side of the panel 1. The padlock hole 31 is a circular through hole, which can be used to add a mechanical padlock for managing operating permissions, preventing unauthorized personnel from operating the device, and improving equipment security.

[0050] Optionally, in some embodiments, as shown in FIG3, a latch 4 is provided, which is movably mounted on the panel 1 and has a locked position and an unlocked position; when the latch 4 is in the unlocked position, it limits the locking member 3 located in the unlocked position, keeping it in the unlocked position; when the latch 4 is in the locked position, it releases the limiting effect on the locking member 3 located in the unlocked position, allowing it to move to the locked position under the action of the elastic member 35; when the locking member 3 is in the locked position, it limits the latch 4 located in the locked position, keeping it in the locked position; the manual function position of the movable door 2 is located in the electric... The movable door 2 has a movement path that includes switching between manual / electric and manual / locking positions. A partial transmission mechanism connects the latch 4 and the movable door 2. When the movable door 2 moves along the manual / electric switching path, the latch 4 remains unlocked. When the movable door 2 moves along the manual / locking switching path, the latch 4 and the movable door 2 are linked. When the movable door 2 moves to the locking position, the latch 4 moves to the locked position. In other words, the movement of the movable door 2 automatically switches the locking element 3 to the locked position.

[0051] Specifically, as shown in Figure 5, the locking member 3 has a locking hole 32 and a stop 33 arranged sequentially along a first direction, and it slides linearly along the first direction. As shown in Figure 6, the latching member 4 has a locking block 41, and it slides linearly along a second direction. The first direction and the second direction are perpendicular, that is, their sliding directions are perpendicular. As shown in Figure 8, when the latching member 4 is in the unlocked position, the locking block 41 extends into the locking hole 32 of the locking member 3 in the unlocked position, forming a blocking effect along the first direction, keeping it in the unlocked position. When the latching member 4 is in the locked position, the locking block 41 leaves the locking hole 32 of the locking member 3 in the unlocked position. When the locking member 3 is in the locked position, the stop 33 moves to the side of the locking block 41 of the latching member 4 in the locked position that tends towards the unlocked position, preventing it from moving towards the unlocked position.

[0052] Optionally, in some embodiments, the panel 1 has an operating plane perpendicular to the first direction and parallel to the second direction. The manual operation hole 11 and the locking member through hole 12 are both located on the operating plane. The locking member through hole 12 is adapted to the shape of the locking member 3 so that it limits the locking member 3 to sliding linearly only along the first direction. The moving direction of the locking member 3 is perpendicular to the operating plane, and thus it slides up and down relative to the operating plane. Further, the panel 1 is connected to a first limiting frame 15, and a limiting track is formed between the first limiting frame 15 and the panel 1, allowing the locking member 4 to slide linearly only along the second direction. The first limiting frame 15 is a metal sheet, which is fixed to the inside of the panel 1 by screws. As an alternative embodiment, the first limiting frame 15 can be integrally injection molded with the panel 1.

[0053] Optionally, in some embodiments, as shown in FIG8, the first limiting frame 15 is provided with a through hole for the locking member 3 to pass through; the elastic member 35 is a tension spring, the first limiting frame 15 is provided with a first connecting part 151 for connecting the elastic member 35, and the locking member 3 is provided with a second connecting part 34 for connecting the elastic member 35 on the side of the first limiting frame 15 away from the locking member 4. The through hole on the first limiting frame 15 is rectangular and its size is adapted to the locking member 3; the first connecting part 151 is a protruding hook on the limiting frame; the second connecting part 34 is a protruding shaft on the locking member 3, and the two ends of the elastic member 35 are hooked and fixed for easy assembly. Further, there are two elastic members 35, and there are also two first connecting parts 151 and two second connecting parts 34, which are symmetrically distributed on both sides of the locking member 3 to form a uniform tension.

[0054] Optionally, in some embodiments, as shown in Figures 3-6, the partial transmission and engagement structure includes a transmission groove 231 provided on the movable door 2, a connecting hole 42 provided on the locking member 4, and a connecting rod 5 connecting the transmission groove 231 and the connecting hole 42. The transmission groove 231 extends along the moving direction of the movable door 2, as shown in Figure 7. When the movable door 2 moves, the connecting rod 5 moves first within the transmission groove 231. After moving to the end, the movable door 2 can further move, which can drive the connecting rod 5 and thus drive the locking member 4 to move.

[0055] Optionally, in some embodiments, the movable door 2 has a pivot that is pivotally connected to the panel 1, as shown in FIG4, and the movable door 2 has a swing handle 21 extending from the manual operation hole 11. The swing handle 21 allows the movable door 2 to rotate around the pivot and switch between an electric function position, a manual function position, and a locking function position. The transmission groove 231 is an arc-shaped groove centered on the pivot. The pivot extends along a third direction, which is perpendicular to the first direction and perpendicular to the second direction. As shown in FIG4, the movable door 2 is provided with a pivot hole 22 for the pivot to pass through. As shown in FIG3, a second limiting frame 16 is installed inside the panel 1. The second limiting frame 16 is provided with a pivot support hole 161 for the pivot to pass through, for pivotally supporting the movable door 2. Specifically, the second limiting frame 16 is a metal sheet, which is fixed to the inside of the panel 1 by screws. As an alternative embodiment, the first limiting frame 15 can be integrally injection molded with the panel 1. Specifically, the movable door 2 has an arc-shaped protrusion on the outside of the transmission groove 231. The second limiting frame 16 is provided with an arc-shaped hole 162 that cooperates with the arc-shaped protrusion on the movable door 2, so that the connecting rod 5 can cooperate with the transmission groove 231 and can make arc-shaped movements with the transmission groove 231. The cooperation between the arc-shaped hole 162 and the arc-shaped protrusion can make the second limiting frame 16 and the movable door 2 form a more stable support.

[0056] Further, as shown in Figure 4(a), the transmission groove 231 is connected to a locking groove 232 that communicates with it. The locking groove 232 is arranged along a direction perpendicular to the extension of the transmission groove 23. As shown in Figure 5, the locking member 3 is provided with a toggle groove 37 through which the connecting rod 5 passes. When the locking member 3 moves between the locked position and the unlocked position, the toggle groove 37 exerts a pushing force on the connecting rod 5, causing the end of the connecting rod 5 that engages with the movable door 2 to move along the direction of the locking groove 232. When the locking member 3 is in the locked position, the end of the connecting rod 5 that engages with the movable door 2 is located in the locking groove 232 away from the transmission groove 231, thus limiting the movement of the movable door 2. Specifically, the locking member 3 has an extension arm 36 extending to the outside of the latch member 4. The toggle groove 37 is arranged in the area of ​​the extension arm 36 corresponding to the connecting rod 5. When the extension arm 36 moves with the locking member 3 along the first direction, the upper or lower end of the toggle groove 37 contacts the connecting rod 5, pushing it to slide along the locking groove 232. As shown in Figure 7, when the movable door 2 moves to the locking position, the end of the connecting rod 5 is located at the far end of the transmission groove 231 connecting to the locking groove 232. As shown in Figure 8, the locking element 3 moves instantaneously and jumps to the locking position. The end of the connecting rod 5 is constrained to the upper end of the locking groove 232, forming a rigid limit on the movable door 2, completely blocking any possibility of its movement to the manual or electric position. At this time, the whole machine enters a physical-level safety locking state.

[0057] As shown in Figure 9, the operating mechanism of the switch also includes an electric operating mechanism 8, an operating shaft 7, and a trigger switch 91; the trigger switch 91 is installed on the moving path of the movable door 2 and is configured to be triggered only when the movable door 2 is in the electric function position; the trigger switch 91 is set in the control circuit of the electric operating mechanism 8 to allow the electric operating mechanism 8 to operate the switch's switching state when the trigger switch 91 is turned on; the operating shaft 7 is correspondingly set to the manual operating hole 11.

[0058] Specifically, as shown in Figure 11, a control component 9 is provided, on which a circuit board 92 is provided, integrating the control circuit of the electric operating mechanism 8. The trigger switch 91 is soldered to the control circuit board, so that no additional wiring connection or fixed structure of the trigger switch 91 is required.

[0059] In some embodiments of this application, the trigger switch 91 is a micro switch. As shown in FIG4, the movable door 2 is provided with a trigger part 25. When the movable door 2 moves to the electric operation function position, the trigger part 25 presses against the trigger case of the micro switch, causing the trigger switch 91 to conduct. As an alternative embodiment, other common triggerable switching devices such as proximity switches and Hall switches are also used.

[0060] The operating shaft 7 is located inside the panel 1. One end is connected to the opening and closing mechanism of the switch, and the other end corresponds to the manual operation hole 11 and is connected to the electric operating mechanism 8, allowing it to rotate manually or electrically. The operating shaft 7 is provided with an indicator mark for opening and closing, and the panel 1 is provided with an operating shaft opening and closing indicator window 14 at the position corresponding to the indicator mark, making it easy to observe the status of the switch.

[0061] Specifically, the operating shaft 7 is fitted with an operating indicator 71 that rotates synchronously with it. The surface of the indicator is provided with visual markings corresponding to the opening and closing states, namely, the closing indicator 72 and the opening indicator 73. When the operating shaft 7 is rotated to the closing position, the closing indicator 72 is directly opposite the operating shaft opening and closing indicator window 14; when it is rotated to the opening position, the opening indicator 73 is displayed accordingly.

[0062] The movable door 2 is equipped with a gear positioning structure. Specifically, as shown in Figure 4(b), the gear positioning structure includes three gear positioning grooves 27 integrally formed on the inner side of the movable door 2, a retractable gear positioning member 94 mounted on the control component 9, and a return spring (not shown in the figure, specifically a compression spring located below the gear positioning member 94) elastically connected to the gear positioning member 94. When the movable door 2 moves to the manual function position, the intermediate safety position, or the electric function position, the gear positioning member 94 automatically engages with the corresponding gear positioning groove 27 under the action of the spring, achieving precise positioning and tactile feedback. Specifically, the control component 9 includes a mounting base plate 93, and the gear positioning member 94 is slidably and limitedly mounted to the mounting base plate 93, allowing it to reciprocate as it approaches / moves away from the movable door 2.

[0063] Specifically, in the photovoltaic field, switches typically only need to ensure absolute isolation in the open maintenance state. Therefore, it is necessary to padlock the switch after switching it to the open state to prevent accidental closing by unauthorized personnel. In some embodiments of this application, a closing limit structure is added to address this specific application requirement, preventing the movable door 2 from being pushed to the padlock position when the switch is closed, thus ensuring that the padlock operation can only be performed in the open state. This closing limit structure design avoids the risk of maintenance personnel forgetting to open the switch and directly padlocking it, effectively protecting personal and equipment safety. Specifically, as shown in Figure 4(b), the closing limit structure includes a first limit protrusion 26 on the movable door 2 and a second limit protrusion 74 on the operation indicator. When the switch is in the closed state, the operation indicator 71 drives the second limit protrusion 74 to rotate to the position interfering with the first limit protrusion 26, physically blocking the movable door 2 from moving to the padlock function position. Only when the switch is opened, the second limit protrusion 74 rotates synchronously with the operation indicator 71 to the avoidance position, and the first limit protrusion 26 can pass over the obstacle, allowing the movable door 2 to slide smoothly into the padlock function position.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A switch panel assembly, characterized in that, include: The panel has a manual operation hole and a locking through hole, the manual operation hole being adapted to receive an operating handle; a movable door is movably mounted to the panel, and its movement path has an electric function position, a manual function position, and a locking function position, the movable door being movable relative to the panel, the manual operation hole being exposed only in the manual function position and obscured in other positions on the movement path of the movable door; a locking member is movably mounted to the panel, its movement path having an unlock position and a locking position protruding relative to the outer surface of the panel; when the movable door is in the locking function position, the locking member locks the movable door in the locking function position, preventing it from moving, and when the locking member is in the unlock position, the movable door can move between the electric function position, the manual function position, and the locking function position.

2. The panel assembly of the switch according to claim 1, characterized in that, An elastic element is provided, which acts on the locking element to form an elastic force that tends to lock the element to a locked position.

3. The panel assembly of the switch according to claim 2, characterized in that, The locking member is provided with a padlock hole. When the locking member is in the locked position, the padlock hole is located on the part of the locking member that protrudes from the outer surface of the panel and is used for padlocking. When the locking member is in the unlocked position, the padlock hole is at least partially located in the locking member through hole of the panel or on the inner side of the panel.

4. The panel assembly of the switch according to claim 2, characterized in that, A locking element is provided, which is movably mounted on the panel and has a locked position and an unlocked position; when the locking element is in the unlocked position, it limits the locking element in the unlocked position and keeps it in the unlocked position. When the latch is in the locked position, the limiting effect on the locking member in the unlocked position is released, allowing it to move to the locked position under the action of the elastic member; when the locking member is in the locked position, the limiting effect on the latch in the locked position keeps it in the locked position; the manual function position of the movable door is located between the electric function position and the locking function position, so that its movement path includes a switching path between the manual function position and the electric function position, and a switching path between the manual function position and the locking function position; a partial transmission engagement structure is provided between the latch and the movable door. When the movable door moves on the switching path between the manual function position and the electric function position, the latch remains in the unlocked position; when the movable door moves on the switching path between the manual function position and the locking function position, the latch and the movable door are linked; when the movable door moves to the locking function position, the latch moves to the locked position.

5. The panel assembly of the switch according to claim 4, characterized in that, The locking member slides linearly along a first direction and has a locking hole and a stop block arranged sequentially along the first direction; the latching member slides linearly along a second direction and has a locking block, which is adapted to the locking hole so that it can be inserted into the locking hole; the first direction and the second direction are perpendicular; when the latching member is in the unlocked position, the locking block extends into the locking hole of the locking member in the unlocked position and forms a blocking effect along the first direction, so that it remains in the unlocked position; when the latching member is in the locked position, the locking block leaves the locking hole of the locking member in the unlocked position. When the locking element is in the locked position, the stop block moves to the side of the locking element in the locked position that tends towards the unlocking position, preventing it from moving towards the unlocking position.

6. The panel assembly of the switch according to claim 5, characterized in that, The panel has an operating plane perpendicular to the first direction and parallel to the second direction. The manual operation hole and the locking member through hole are both located on the operating plane. The locking member through hole is adapted to the shape of the locking member so that it can limit the locking member to slide linearly only in the first direction. The panel is connected to a first limiting frame, and a limiting track is formed between the first limiting frame and the panel so that the locking member can slide linearly only in the second direction.

7. The panel assembly of the switch according to claim 6, characterized in that, The first limiting frame is provided with a through hole for the locking member to pass through; the elastic member is a tension spring, the first limiting frame is provided with a first connecting part for connecting the elastic member, and the locking member is provided with a second connecting part for connecting the elastic member on the side of the first limiting frame away from the locking member.

8. The panel assembly of the switch according to claim 4, characterized in that, The partial transmission and engagement structure includes a transmission groove on the movable door, a connecting hole on the locking element, and a connecting rod connecting the transmission groove and the connecting hole. The transmission groove extends along the moving direction of the movable door.

9. The panel assembly of the switch according to claim 8, characterized in that, The movable door has a pivot that is pivotally connected to the panel and a swing handle. The movable door can be rotated around the pivot to switch between an electric function position, a manual function position and a locking function position. The transmission groove is an arc-shaped groove with the pivot as the center. The pivot extends along a third direction, which is perpendicular to the first direction and perpendicular to the second direction.

10. The panel assembly of the switch according to claim 8, characterized in that, The transmission groove is connected to a locking groove; the locking member is provided with a toggle groove through which the connecting rod passes. When the locking member moves between the locked position and the unlocked position, the toggle groove exerts a pushing force on the connecting rod, causing the end of the connecting rod that engages with the movable door to move along the direction of the locking groove. When the locking member is in the locked position, the end of the connecting rod that engages with the movable door is located at the end of the locking groove away from the transmission groove, thus limiting the movement of the movable door.

11. A switch, characterized in that, It has an electric operating mechanism, an operating shaft, a trigger switch, and a panel assembly of the switch as described in any one of claims 1-10; the trigger switch is mounted on the movement path of the movable door and configured to be triggered only when the movable door is in the electric function position; the trigger switch is provided in the control circuit of the electric operating mechanism to allow the electric operating mechanism to operate the switch's switching state when the trigger switch is turned on; the operating shaft is provided corresponding to the manual operating hole.

12. The switch according to claim 11, characterized in that, The movable door is equipped with a gear positioning structure, which includes three gear positioning slots on the movable door, a movable gear positioning component located on the inside of the movable door, and a return spring elastically connected to the gear positioning component. When the movable door moves to the manual function position, the intermediate safety position, or the electric function position, the gear positioning component automatically engages with the corresponding gear positioning slot under the action of the spring, achieving precise positioning and tactile feedback.

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