Station signal device for draw-out type circuit breaker and draw-out type circuit breaker with station signal device

Abstract

The utility model relates to a station signal device for a draw-out type circuit breaker and the draw-out type circuit breaker with the station signal device, and the station signal device comprises a switch actuating element which is fixedly installed on a removable part; the plurality of groups of switch assemblies are fixedly arranged in the cabinet body and are arranged at intervals along the moving direction of the switch actuating element, and the group number of the plurality of groups of switch assemblies is designed to be the same as the station number, so that each group of switch assemblies can be actuated by the switch actuating element which moves to the corresponding station to generate a corresponding electric signal; wherein each group of switch assemblies comprises at least two switch parts which are sequentially arranged far away from the switch actuating element in the direction transverse to the moving direction of the switch actuating element, and each switch part of each group of switch assemblies can actuate the switch part located on the side far away from the switch actuating element. The at least two switch elements are moved to the corresponding stations, so that each group of switch assemblies can actuate the at least two switch elements when being actuated by the switch actuating elements moved to the corresponding stations, thereby generating at least two corresponding electric signals.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a station signal device for withdrawable circuit breakers and a withdrawable circuit breaker having the same. Background Technology

[0002] Withdrawable circuit breakers, such as drawer-type or truck-type circuit breakers, are widely used in power systems due to their ease of replacement and maintenance. They provide short-circuit protection, overload protection, and circuit connection control. During operation, the circuit breaker can be moved to different positions as needed, such as sequentially switching between isolation, testing, and connection positions. To monitor the circuit breaker's position status, it is typically equipped with a position signaling device to collect the position status signal and transmit it to a remote monitoring system, thereby enabling remote system monitoring of the circuit breaker.

[0003] However, in recent years, with the increasing demands of the power industry for safety, energy conservation, cost reduction and efficiency improvement, the development of circuit breakers has also shown a trend towards miniaturization, compactness and high safety and reliability. As a result, the installation space inside the circuit breaker is getting smaller and smaller, which leads to increased installation difficulty and cost when installing position signal devices inside the circuit breaker. These problems are particularly prominent in complex application scenarios where safety requirements are high and multiple position signals need to be output.

[0004] Therefore, there is a demand in this field for workstation signaling devices that are compact in structure, easy to install, low in cost, and have wider applicability. Utility Model Content

[0005] The present invention aims to provide a workstation signal device that can at least solve some of the above-mentioned problems.

[0006] This invention also aims to provide a withdrawable circuit breaker that applies the above-mentioned improved workstation signal device.

[0007] According to one aspect of the present invention, a station signal device for a withdrawable circuit breaker is provided. The withdrawable circuit breaker includes a cabinet and a removable component capable of moving relative to the cabinet to multiple stations. The station signal device includes: a switch actuating element fixedly mounted to the removable component, such that the switch actuating element can move with the removable component to multiple stations; and multiple sets of switch assemblies fixedly mounted inside the cabinet and spaced apart along the moving direction of the switch actuating element, wherein the number of sets of switch assemblies is designed to be the same as the number of stations. This allows each set of switch components to be moved to the corresponding workstation and actuated by the switch actuating element to generate a corresponding electrical signal. Each set of switch components includes at least two switch elements arranged sequentially away from the switch actuating element in a direction transverse to the moving direction of the switch actuating element. Each switch element in each set of switch components can actuate the switch element located on its side away from the switch actuating element, so that when each set of switch components is moved to the corresponding workstation and actuated by the switch actuating element, at least two switch elements can be actuated, thereby generating at least two corresponding electrical signals.

[0008] Compared with existing technologies, the workstation signal device of this invention can actuate each set of switch components corresponding to each workstation to generate corresponding electrical signals using only one switch actuation element, resulting in a simple and compact structure. Furthermore, each set of switch components has at least two sequentially linked switches, so that when the switch actuation element moves to the target workstation, it can actuate at least two switches in the corresponding set of switch components. This allows for the output of at least two electrical signals corresponding to the target workstation using only one switch actuation element, making the workstation signal device of this invention suitable for complex scenarios with high safety requirements.

[0009] Preferably, at least one of the at least two switching elements in each group of switching assemblies has a rated voltage different from the rated voltage of the other switching elements.

[0010] Preferably, each group of switching assemblies is configured to include at least three switching elements, wherein the rated voltages of the at least three switching elements in each group of switching assemblies are different.

[0011] Preferably, the rated voltages of the multiple switching elements arranged on the same straight line extending along the moving direction of the switching actuation element in the multiple sets of switching assemblies are the same.

[0012] Preferably, the workstation signal device further includes: a terminal block, which is arranged on the outside of the cabinet and connected to each switch of each group of switch assemblies, wherein the rated voltage of the terminal block is greater than the rated voltage of the switch with the largest rated voltage among the multiple groups of switch assemblies.

[0013] Preferably, the workstation signal device further includes: a support frame arranged inside the cabinet and supporting the multiple sets of switch assemblies. The support frame is constructed as a multi-layer structure arranged transversely to the moving direction of the switch actuating element and the arrangement direction of at least two switches of each set of switch assemblies, so that the multiple sets of switch assemblies are arranged in layers on the support frame.

[0014] Preferably, the multiple sets of switch assemblies are designed as three sets of switch assemblies, and the switch assembly located in the middle of the moving direction of the switch actuating element is arranged on different layers of the support frame along with the other two sets of switch assemblies.

[0015] Preferably, each switch element includes a switch body, a first actuation portion located on the side of the switch body adjacent to the switch actuation element in a direction transverse to the movement direction of the switch actuation element, and a second actuation portion located on the side of the switch body away from the switch actuation element in a direction transverse to the movement direction of the switch actuation element and linked with the first actuation portion. In each set of switch assemblies, the second actuation portion of the switch element adjacent to the switch actuation element in at least two switch elements can be linked with the first actuation portion of the switch element located on the side of the switch element away from the switch actuation element.

[0016] Preferably, the input and output terminals of the switch body of each switch element are respectively arranged on both sides of the switch body in the direction of movement of the switch actuation element.

[0017] According to another aspect of the present invention, a withdrawable circuit breaker is also provided, which includes a cabinet and a removable component that can be moved relative to the cabinet to multiple workstations, and the withdrawable circuit breaker also includes the aforementioned workstation signal device.

[0018] Other features and advantages of this invention will partly be apparent to those skilled in the art upon reading this application, and partly will be described below in conjunction with the accompanying drawings in the detailed description. Attached Figure Description

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a partial perspective view of a withdrawable circuit breaker according to the first embodiment of the present invention;

[0021] Figure 2a This is a first perspective view of the station signal device of the withdrawable circuit breaker according to the first embodiment of the present utility model;

[0022] Figure 2bThis is a second perspective view of the station signal device of the withdrawable circuit breaker according to the first embodiment of the present utility model;

[0023] Figure 2c This is a top view of the station signal device of the withdrawable circuit breaker according to the first embodiment of the present utility model;

[0024] Figure 2d This is a left view of the station signal device of the withdrawable circuit breaker according to the first embodiment of the present utility model;

[0025] Figure 3a This is a partial perspective view of the withdrawable circuit breaker in the disconnected position according to the first embodiment of the present invention.

[0026] Figure 3b This is a partial top view of the withdrawable circuit breaker in the disconnected position according to the first embodiment of the present invention;

[0027] Figure 4a This is a partial perspective view of the withdrawable circuit breaker in the test position according to the first embodiment of the present invention;

[0028] Figure 4b This is a partial top view of the withdrawable circuit breaker in the test position according to the first embodiment of the present invention;

[0029] Figure 5a This is a partial perspective view of the withdrawable circuit breaker in the connected position according to the first embodiment of the present invention.

[0030] Figure 5b This is a partial top view of the withdrawable circuit breaker in the connected position according to the first embodiment of the present invention;

[0031] Figure 6a This is a partial perspective view of the withdrawable circuit breaker in the test position according to the second embodiment of the present invention;

[0032] Figure 6b This is a partial top view of the withdrawable circuit breaker in the test position according to the second embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100 - Withdrawn circuit breaker; 10 - Workstation signal device; 11 - Switch actuation element; 111 - Mounting section; 112 - Actuation section; 12 - Switch assembly; 12A - First group of switch assemblies; 12B - Second group of switch assemblies; 12C - Third group of switch assemblies; 121 - Switch component; 121A - First switch component; 121B - Second switch component; 121C - Third switch component; 121D - Fourth switch component; 1211 - Switch body; 1212 - First actuation part; 1213 - Second actuation part; 1214 - Input terminal; 1215 - Output terminal; 13 - Terminal block; 131 - Input terminal block; 132 - Output terminal block; 14 - Support frame; 141 - Upper support plate; 142 - Lower support plate; 143 - Connecting plate; 20 - Cabinet; 30 - Removable component; 31 - Mounting base. Detailed Implementation

[0035] The schematic scheme of the withdrawable circuit breaker and its position signal device disclosed in this utility model is now described in detail with reference to the accompanying drawings. Although the drawings are provided to illustrate some embodiments of this utility model, the drawings are not necessarily drawn to the dimensions of the specific embodiments, and certain features may be enlarged, removed, or partially cut to better illustrate and explain the disclosure of this utility model. Some components in the drawings may be repositioned according to actual needs without affecting the technical effect. The phrase "in the drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0036] Certain directional terms used in the description of the accompanying drawings below, such as “inner,” “outer,” “above,” “below,” and other directional terms, will be understood to have their normal meaning and refer to those directions as normally viewed in the drawings. Unless otherwise specified, the directional terms used in this specification are generally in accordance with the conventional directions understood by those skilled in the art.

[0037] The terms “first,” “first,” “second,” “second,” and similar terms used in this utility model do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.

[0038] The terms "joining", "connection" and similar terms used in this utility model include both indirect connection of two components with the aid of an intermediate layer (e.g., adhesive, welding agent, etc.) or intermediate parts (e.g., connector, transition piece, etc.) and direct connection of two components without the aid of any intermediate layer (e.g., adhesive, welding agent, etc.) or intermediate parts (e.g., connector, transition piece, etc.).

[0039] Figures 1 to 6bThe withdrawable circuit breaker 100 of this utility model is illustrated by way of example. It may include a cabinet 20 and a removable component 30 and a workstation signal device 10 arranged inside the cabinet 20. When the removable component 30 moves relative to the cabinet 20 to the target workstation, the workstation signal device 10 can collect signals of the position status of the removable component 30 at the target workstation and output at least two corresponding electrical signals. It has a compact structure and is suitable for application scenarios with high safety requirements.

[0040] like Figure 1 As shown, the removable component 30 may include a mounting base 31 slidably arranged on the bottom side of the interior of the cabinet 20 and a circuit breaker body located on the upper side of the mounting base 31. An operator can control the mounting base 31 to move relative to the cabinet 20 to the target work position using an operating handle, thereby moving the circuit breaker body on the upper side of the mounting base 31 to the target work position, for example... Figure 1 and Figures 3a to 3b The separation position shown, or Figure 4a and Figure 4b The test location shown, or Figure 5a and Figure 5b The connection position is shown. In an embodiment not shown, the removable component 30 can also move back and forth between the two positions relative to the cabinet 20, for example, between a disconnected position and a connected position. It should be noted that, for the purpose of showing the internal structure of the withdrawable circuit breaker 100, Figure 1 The operating handle and circuit breaker body are omitted from the description, but those skilled in the art should understand that the omitted structures in the withdrawable circuit breaker 100 are those structures well known to those skilled in the art, and therefore will not be described in detail here.

[0041] In addition, combined Figure 2c As shown, the directions "front" and "back" mentioned in this article are respectively Figure 2c The top and bottom directions in the attached diagram, with "left" and "right" respectively, represent... Figure 2c The left and right directions, as well as the orientations "up" and "down" in the attached diagram, are respectively... Figure 2c The removable component is located both outside and inside the page. Therefore, in this embodiment, the removable component can move relative to the cabinet 20 in the front-to-back direction to multiple workstations. In embodiments not shown, the removable component of this invention can also be designed to move relative to the cabinet 20 in other directions.

[0042] Combination Figures 2a to 2d As shown, the workstation signal device 10 may include a switch actuation element 11 and multiple sets of switch assemblies 12.

[0043] Specifically, the switch actuation element 11 can be fixedly mounted on the mounting base 31 of the removable component 30, so that when the mounting base 31 of the removable component 30 moves the circuit breaker body to the target position, the switch actuation element 11 can move to the target position along with the mounting base 31. Figures 1 to 5b In the first embodiment shown, the switch actuation element 11 may include a mounting section 111 and an actuation section 112. The mounting section 111 may be mounted to the upper side of the mounting base 31 via fasteners and extend to the left beyond the mounting base 31. The actuation section 112 may extend downward from the left end of the mounting section 111 beyond the mounting base 31, so that the actuation section 112 can be exposed from the left side of the mounting base 31 to cooperate with the switch assembly 12. Obviously, the mounting section 111 and the actuation section 112 do not extend beyond the mounting base 31 in the vertical direction, and the extent to which the mounting section 111 extends to the left beyond the mounting base 31 can be designed to be slightly greater than the width of the actuation section 112, thereby minimizing the space occupied by the switch actuation element 11. In embodiments not shown, the switch actuation element 11 may also be constructed in other configurations, such as an actuation plate extending vertically and fixed to the mounting base 31, as long as the function of the switch actuation element 11 in this invention is achieved.

[0044] Multiple sets of switch assemblies 12 can be fixedly installed on the inner bottom side of the cabinet 20 and arranged adjacent to the switch actuation element 11, for example, on the left side of the switch actuation element 11, so that each set of switch assemblies 12 can cooperate with the actuation section 112 of the switch actuation element 11 to output an electrical signal. The number of sets of switch assemblies 12 can be designed to be the same as the number of workstations, and the multiple sets of switch assemblies 12 can be arranged at intervals along the moving direction of the switch actuation element 11, i.e., the front-to-back direction. Therefore, each switch assembly 12 can engage with the switch actuation element 11 that has moved to the corresponding workstation and be actuated by the switch actuation element 11 that has moved to the corresponding workstation to generate a corresponding electrical signal, for example... Figure 1 The switch assembly 12 located at the foremost position can be moved to the disengaged position, where the switch actuation element 11 actuates to generate an electrical signal corresponding to the disengaged position. Based on this, multiple sets of switch assemblies 12 can be used to acquire the position status of the switch actuation element 11 along with the removable component 30 at multiple workstations, for example... Figures 1 to 5b The three sets of switch assemblies 12 shown are used to collect the position status of the switch actuation element 11 together with the removable component 30 at three workstations, thereby monitoring the position status of the withdrawable circuit breaker 100 with the help of an external monitoring system.

[0045] Each set of switch assemblies 12 may include at least two switch elements 121, which are arranged sequentially away from the switch actuation element 11 in a direction transverse to the moving direction of the switch actuation element 11, i.e., left-right. That is, at least two switch elements 121 can be arranged sequentially from the left side of the switch actuation element 11. In this way, when the switch actuation element 11 moves to the target position, the switch element 121 closest to the switch actuation element 11 in the corresponding switch assembly 12, i.e., the leftmost switch element 121, can be actuated by the switch actuation element 11. The leftmost switch element 121 then actuates the switch element 121 located on its right side away from the switch actuation element 11. Thus, the switch actuation element 11 simultaneously actuates all the switch elements 121 in the corresponding switch assembly 12, thereby generating at least two electrical signals corresponding to the target position, thus providing richer applications for the withdrawable circuit breaker 100 provided by this utility model.

[0046] Combination Figure 3a As shown in Figure 6d, for ease of explanation, the multiple sets of switch assemblies 12 are specifically described from front to back as the first set of switch assemblies 12A, the second set of switch assemblies 12B, and the third set of switch assemblies 12C, etc., and the at least two switching elements 121 of each set of switch assemblies 12 are specifically described from left to right as the first switching element 121A, the second switching element 121B, the third switching element 121C, and the fourth switching element 121D, etc.

[0047] exist Figures 1 to 5b In the first embodiment shown, when the switch actuation element 11 moves to such a position... Figure 3a and Figure 3b When the switch actuation element 11 is in the separated position as shown, it actuates the first switch element 121A in the first set of switch assemblies 12A. The first switch element 121A actuates the second switch element 121B, so that the first set of switch assemblies 12A generates two electrical signals actuated by the switch actuation element 11, which has moved to the separated position. When the switch actuation element 11 continues to move to the position shown... Figure 4a and Figure 4b When the test position is shown, the switch actuation element 11 actuates the first switch element 121A in the second set of switch assemblies 12B, and the first switch element 121A actuates the second switch element 121B, so that the second set of switch assemblies 12B is actuated by the switch actuation element 11, which has moved to the test position, to generate two electrical signals. When the switch actuation element 11 continues to move to the position shown... Figure 5a and Figure 5b When the connection position is shown, the switch actuation element 11 actuates the first switch element 121A in the third group of switch assemblies 12C, and the first switch element 121A in the third group of switch assemblies 12C actuates the second switch element 121B, so that the third group of switch assemblies 12C is actuated by the switch actuation element 11, which has moved to the connection position, to generate two electrical signals.

[0048] Alternatively, in Figure 6a and Figure 6b In the second embodiment shown, the multiple sets of switch assemblies 12 are also designed as three sets of switch assemblies 12, respectively used to collect the position status of the switch actuation element 11 together with the removal component at the three workstations. However, each set of switch assemblies 12 may include four switch elements 121 arranged sequentially from left to right in the left-right direction. Therefore, when the switch actuation element 11 moves to the target workstation, the switch actuation element 11 simultaneously actuates the four switch elements 121 in the corresponding switch assembly 12, thereby generating four electrical signals corresponding to the target workstation. In embodiments not shown, each set of switch assemblies 12 may include three or more switch elements 121, which is not limited here.

[0049] Optionally, in Figures 1 to 5b In the first embodiment shown, the rated voltages of the two switches 121 in each group of switch assemblies 12 may be different. When the switch actuation element 11 moves to the target station, the corresponding switch assembly 12 can output two voltage signals of different specifications, thus making it applicable to application circuits with different voltages. Alternatively, in the second embodiment described herein or in other embodiments where each group of switch assemblies 12 (not shown) includes three or more switches 121, at least three switches 121 in each group of switch assemblies 12 may be designed such that the rated voltage of at least one switch 121 is different from the rated voltage of the other switches 121, or they may all be different, to expand the applicability of the station signal device 10 of this invention and to allow for customization according to customer needs.

[0050] Optionally, in Figures 1 to 5b In the first embodiment shown, the rated voltages of the multiple switching elements 121 arranged on the same straight line extending in the front-rear direction in the three sets of switch assemblies 12 are the same. That is, the rated voltages of the three first switching elements 121A and the three second switching elements 121B in the three sets of switch assemblies 12 are the same. Therefore, the three switching elements 121 with the same rated voltage in the three sets of switch assemblies 12 can be applied to the same application scenario to monitor the three operating states of the withdrawable circuit breaker 100 in that application scenario.

[0051] Optionally, such as Figure 1 As shown, the workstation signal device 10 may also include a terminal block 13, which can be fixedly installed on the upper side of the cabinet 20 to avoid occupying space inside the cabinet 20. In an embodiment not shown, the terminal block 13 may also be arranged on the outer side of the side plate of the cabinet 20 adjacent to the switch actuation element 11, i.e., the left side plate, to save on the connection cable between the terminal block 13 and the switch element 121.

[0052] The terminal block 13 can be configured to include an input terminal block 131 and an output terminal block 132, which can be arranged side by side on the cabinet 20. The input terminal block 131 can be connected to the input terminal 1214 of each switch element 121, and the output terminal block 132 can be connected to the output terminal 1215 of each switch element 121, thereby connecting each switch element 121 to the circuit of the corresponding application scenario. When the rated voltages of the multiple switches 121 in each group of switch assemblies 12 are different, the rated voltages of the input terminal block 131 and the output terminal block 132 can be greater than the maximum rated voltage of the switches 121 in the multiple groups of switch assemblies 12, thereby allowing the multiple groups of switch assemblies 12 to be used in application scenarios with different voltage specifications.

[0053] Optionally, such as Figures 1 to 2d As shown, the workstation signal device 10 may further include a support frame 14, which can be fixedly installed to the inside of the bottom plate of the cabinet 20 to support all the switch assemblies 12. The support frame 14 may include an upper support plate 141 and a lower support plate 142 arranged at intervals in the vertical direction, and a connecting plate 143 connecting the upper support plate 141 and the lower support plate 142 on the left side, thereby constructing the support frame 14 as a double-layer structure arranged in the vertical direction. Further reference Figure 3a As shown in Figure 3d, the support frame 14 does not extend beyond the switch actuation element 11 in the vertical direction, thereby minimizing the space occupied.

[0054] The first set of switch assemblies 12A and the third set of switch assemblies 12C are arranged on the upper support plate 141, and the second set of switch assemblies 12B is arranged on the upper side of the lower support plate 142 and located between the upper support plate 141 and the lower support plate 142. By arranging the three sets of switch assemblies 12 in layers on the support frame 14, the space occupied by the three-position signal device 10 provided by this utility model can be further saved.

[0055] Furthermore, the right side of the support frame 14 is open, without any plates, which facilitates the connection between the multiple sets of switch assemblies 12 on the support frame 14 and the switch actuation elements 11. The portion of the connecting plate 143 of the support frame 14 opposite to the second set of switch assemblies 12B can be designed to be hollow, so as to facilitate the connection between the second set of switch assemblies 12B and the terminal block 13 and to allow space for the switch element 121 of the second set of switch assemblies 12B to move to the left.

[0056] See further Figure 2dThe second set of switch components 12B in the three sets of switch components 12 is not strictly centered between the first set of switch components 12A and the third set of switch components 12C in the front-back direction. Instead, it can be arranged opposite to a part of the first set of switch components 12A and a part of the third set of switch components 12C in the vertical direction. This allows the switch actuation element 11 to be sequentially connected to the first set of switch components 12A, the second set of switch components 12B, and the third set of switch components 12C when the switch actuation element 11 moves forward to the separation position, the test position, and the connection position. By arranging the multiple sets of switch components 12 in a layered and staggered manner in the vertical direction, the space occupied by the three-position signal device 10 provided by this utility model can be further saved.

[0057] Optionally, combined Figures 2a to 2d As shown, the switch element 121 may include a switch body 1211 and a first actuating part 1212 and a second actuating part 1213 located on the left and right sides of the switch body 1211, respectively, wherein the second actuating part 1213 can be linked with the first actuating part 1212. For two switch elements 121 arranged in the left-right direction in the same group of switch assemblies 12, the second actuating part 1213 of the first switch element 121A can be linked with the first actuating part 1212 of the second switch element 121B.

[0058] For example, such as Figures 3a to 3b As shown, the switch actuating element 11 moves to the disengaged position and pushes the first actuating part 1212 of the first switch member 121A of the first group of switch assemblies 12A to the left. The switch body 1211 of the first switch member 121A switches to the ON state, and its first actuating part 1212 pushes the second actuating part 1213 to the left. The second actuating part 1213 of the first switch member 121A then pushes the first actuating part 1212 of the second switch member 121B to the left. The switch body 1211 of the second switch member 121B switches to the ON state accordingly, and its first actuating part 1212 pushes the second actuating part 1213 to the left. Alternatively, in Figures 6a to 6b In the second embodiment shown, the operation of the four switches 121 in each group of switch assemblies 12 is basically the same as... Figures 1 to 5b In the first embodiment shown, the two switches 121 in each group of switch assemblies 12 operate in the same way.

[0059] Optionally, combined Figures 2a to 2d As shown, the input terminal 1214 and output terminal 1215 of the switch element 121 can be arranged on the front and rear sides of the switch body 1211 respectively, so as to make full use of the spacing between adjacent switch components 12, thereby further reducing the space occupied by the workstation signal device 10 provided by this utility model. For example, the switch element 121 can be designed as a micro switch.

[0060] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0061] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes, modifications, and combinations made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A station signaling device for an draw-out circuit breaker, the draw-out circuit breaker (100) comprising a cabinet (20) and a removable part (30) movable relative to the cabinet (20) to a plurality of stations, characterized in that, The station signal device (10) comprises: a switch actuating element (11) fixedly mounted to the removable part (30) so that the switch actuating element (11) can move with the removable part (30) to multiple stations; a plurality of switch assemblies (12) fixedly mounted to the inside of the cabinet (20) and arranged in a spaced manner along the moving direction of the switch actuating element (11), the number of the plurality of switch assemblies (12) is designed to be the same as the number of stations, so that each switch assembly (12) can be actuated by the switch actuating element (11) moved to the corresponding station to generate a corresponding electrical signal; wherein each switch assembly (12) comprises at least two switch pieces (121) arranged in sequence away from the switch actuating element (11) in a direction transverse to the moving direction of the switch actuating element (11), each switch piece (121) of each switch assembly (12) can actuate the switch piece (121) located away from the switch actuating element (11) on one side thereof, so that each switch assembly (12) can actuate at least two switch pieces (121) when being actuated by the switch actuating element (11) moved to the corresponding station, thereby generating at least two corresponding electrical signals.

2. The draw-out circuit breaker with station signal apparatus of claim 1, wherein, The rated voltage of at least one switch piece (121) of the at least two switch pieces (121) of each switch assembly (12) is different from the rated voltage of the other switch pieces (121).

3. The draw-out circuit breaker with station signal apparatus of claim 2, wherein, Each switch assembly (12) is configured to comprise at least three switch pieces (121), wherein the rated voltages of the at least three switch pieces (121) of each switch assembly (12) are different from each other.

4. A station signal device for an draw-out circuit breaker according to claim 2 or 3, characterized in that The rated voltages of the plurality of switch pieces (121) arranged on the same straight line extending along the moving direction of the switch actuating element (11) in the plurality of switch assemblies (12) are the same.

5. The draw-out circuit breaker with bay signaling apparatus of claim 4, wherein, The station signal device (10) further comprises: a terminal block (13) arranged on the outside of the cabinet (20) and connected with each switch piece (121) of each switch assembly (12), the rated voltage of the terminal block (13) is greater than the rated voltage of the switch piece (121) with the maximum rated voltage in the plurality of switch assemblies (12).

6. The draw-out circuit breaker with bay signaling apparatus of claim 1, wherein, The station signal device (10) further comprises: a support frame (14) arranged inside the cabinet (20) and supporting the plurality of switch assemblies (12), the support frame (14) is configured as a multi-layer structure arranged in a direction transverse to the moving direction of the switch actuating element (11) and the arrangement direction of the at least two switch pieces (121) of each switch assembly (12), so that the plurality of switch assemblies (12) are arranged in layers on the support frame (14).

7. The station signaling device for draw-out circuit breakers according to claim 6, the removable part (30) being designed to be movable to three stations relative to the cabinet (20), characterized in that, The plurality of switch assemblies (12) are designed as three switch assemblies (12), and the switch assembly (12) in the middle of the three switch assemblies (12) in the moving direction of the switch actuating element (11) is arranged on a different layer of the support frame (14) from the other two switch assemblies (12).

8. The station signal device for draw-out circuit breakers of claim 5, wherein, Each switch member (121) includes a switch body (1211), a first actuating portion (1212) located on a side of the switch body (1211) adjacent to the switch actuating element (11) in a direction transverse to the moving direction of the switch actuating element (11), and a second actuating portion (1213) located on a side of the switch body (1211) away from the switch actuating element (11) in the direction transverse to the moving direction of the switch actuating element (11) and linked with the first actuating portion (1212), and the second actuating portion (1213) of the switch member (121) adjacent to the switch actuating element (11) in at least two switch members (121) of each switch assembly (12) can be linked with the first actuating portion (1212) of the switch member (121) located away from the switch actuating element (11).

9. The draw-out circuit breaker with bay signaling apparatus of claim 8, wherein, The input terminal (1214) and the output terminal (1215) of the switch body (1211) of each switch member (121) are respectively arranged on both sides of the switch body (1211) in the moving direction of the switch actuating element (11).

10. An draw-out circuit breaker (100) comprising a cabinet (20) and a removable component (30) movable relative to the cabinet (20) to a plurality of stations, characterized in that, The draw-out circuit breaker (100) further comprises the station signal device (10) according to any one of claims 1 to 9.

Images