WO2021046687A1

WO2021046687A1 - Assembly for indicating working status of withdrawable circuit breaker, corresponding withdrawable circuit breaker and method of producing the assembly

Info

Publication number: WO2021046687A1
Application number: PCT/CN2019/104950
Authority: WO
Inventors: Wensheng Liu; Jiancheng REN; Qi Zhou
Original assignee: Abb Schweiz Ag
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2021-03-18
Also published as: CN113678333B; CN113678333A

Abstract

An assembly (10) for indicating a working status of withdrawable circuit breaker, a corresponding withdrawable circuit breaker and method of producing the assembly (10). Then assembly (10) comprises a chassis (20), an input component (30), an output component (40) and an indication portion (46). The input component (30) adapted to move relative to the chassis (20) and comprises a plurality of steps (34) at periphery (32) thereof, the plurality of steps (34) raising step by step against a moving direction of the input component (30). The output component (40) adapted to rotate about a shaft (44) provided on the chassis (20) and comprises a resilient portion (42) at an end (41), the resilient portion (42) adapted to engage against each of the plurality of steps (34). The indication portion (46) provided at the other end (43) of the output component (40) opposite to the resilient portion (42). In response to the input component (30) moving relative to the chassis (20), the resilient portion (42) disengages from a first step of the plurality of steps (34) and rotates by a degree around the shaft (44) to engage with a second step next to the first step, such that the output component (40) causes an end of the indication portion (46) to translate by a distance along a direction perpendicular to the shaft (44). The working statuses of the circuit breaker may be clearly indicated with a simple structure.

Description

ASSEMBLY FOR INDICATING A WORKING STATUS OF WITHDRAWABLE CIRCUIT BREAKER, CORRESPONDING WITHDRAWABLE CIRCUIT BREAKER AND METHOD OF PRODUCING THE ASSEMBLY

FIELD

Example embodiments of the present disclosure generally relate to an indicating mechanism in the electrical field and, more particularly, to an assembly for indicating a working status of a withdrawable circuit breaker, a corresponding withdrawable circuit breaker and method of producing the assembly.

BACKGROUND

In the electrical field, electrical equipment may normally have a plurality of working statuses. For example, for a withdrawable circuit breaker, it may comprise different working statuses like Connect, Unblock, Test, Disconnect, etc. An indicating of the working status of electrical equipment is of great importance. The staff can easily understand the current situation inside the equipment by clearly knowing the corresponding working status. In case that an emergency happens, the staff can take the corresponding measure in time only if he knows the working status of the equipment.

Various solutions have been proposed for indicating the working status for the electrical equipment. For example, CN 208479005U provides a kind of withdrawable power distributing cabinet and three-position display components. However, such a solution can provide at most three indication positions. If more positions are needed, the mechanism has to be made very complicated. This greatly limits the promotion of the power distributing cabinet.

Moreover, in conventional approaches, the action mode of the indicating mechanism is a continuous motion and the transition between adjacent two working statuses is slow. As such, an unclear indication would be brought about, which renders the respective portions of the adjacent two working statuses appear at the indicating window. The staff would feel confused on the actual working status inside the equipment. Therefore, how to generate a clear indication of the adjacent working status of the electrical equipment becomes necessary.

SUMMARY

Example embodiments of the present disclosure propose a solution for clearly indicating a working status of the withdrawable circuit breaker.

In a first aspect, example embodiments of the present disclosure an assembly for indicating a working status of a withdrawable circuit breaker, comprising: a chassis; an input component adapted to move relative to the chassis and comprises a plurality of steps at periphery thereof, the plurality of steps raising step by step against a moving direction of the input component; an output component adapted to rotate about a shaft provided on the chassis and comprises a resilient portion at an end, the resilient portion adapted to engage against each of the plurality of steps; and an indication portion provided at the other end of the output component opposite to the resilient portion, wherein in response to the input component moving relative to the chassis, the resilient portion disengages from a first step of the plurality of steps and rotates by a degree around the shaft to engage with a second step next to the first step, such that the output component causes an end of the indication portion to translate by a distance along a direction perpendicular to the shaft.

According to embodiments of the present disclosure, the indication portion can precisely indicate the working statuses of the circuit breaker conveniently. In addition, the number of the working statuses to be indicated can be easily extended.

In some embodiments, the indication portion comprises a plurality of indication blocks at an end, and the chassis is provided with a window adjacent to the end of the indication portion, with a first indication block of the plurality of indication blocks being adapted to align with the window; wherein in response to the indication portion translating by the distance, a second indication block next to the first indication block aligns with the window. In this way, a large number of working statuses may be indicated by providing corresponding indication blocks and the assembly allows indicating more working positions if the space is enough, which makes the circuit breaker suitable for more scenes.

In some embodiments, wherein the indication portion may comprises: a pivot being fixed to the chassis at an end; and a slot provided at the other end, the slot adapted to move relative to a strut provided on the output component, and wherein in response to the rotation of the output component, the strut causes the slot to move relative to the strut and then causes the indication portion to rotate, such that the end of the indication portion translates by the distance along the direction perpendicular to the shaft. In this way, the indication portion could be actuated in a reliable manner to ensure accurate indication of the circuit breaker.

In some embodiments, the resilient portion comprises a slope and an arc face on its end thereof, the slope being adjacent to the arc face, wherein a normal line of the slope penetrating through a friction circle around the shaft. In this way, at the moment when the respective step beats, the resilient portion can be made still. Therefore, the accuracy of the indication action can be improved.

In some embodiments, the input component is of disk-shaped and adapted to rotate around a center of rotation, and the periphery of the input component comprises a plurality of surfaces, each of the steps being formed by the respective adjacent surfaces of the plurality of surfaces and the surfaces having greater radius step by step against the moving direction. In this way, the assembly could be used with a rotating component. Therefore, the range of use of the assembly is extended.

In some embodiments, at least one of the plurality of surfaces is a circular surface centered at the center of rotation. In this way, by providing a simple and reliable configuration, the accurate indication action is ensured.

In some embodiments, the input component is a slider and adapted to slide along a sliding direction perpendicular to the shaft, and the periphery of the input component comprises a plurality of surfaces, each of the steps being formed by the respective adjacent surfaces of the plurality of surfaces and the surfaces having greater height step by step against the sliding direction. In this way, the range of use of the assembly can be extended in cost-effective manner.

In some embodiments, at least one of the plurality of surfaces is parallel to the sliding direction. In this way, the accurate indication action may be ensured.

In some embodiments, the assembly further comprises: a spring with an end secured on the chassis and the other end provided between the shaft and the indication portion, the spring allowing the resilient portion to engage against the one of the plurality of steps. In this way, the reliability of the assembly is ensured.

In a second aspect, example embodiments of the present disclosure provide a withdrawable circuit breaker comprising an assembly of the first aspect.

In a third aspect, example embodiments of the present disclosure provide a method of producing an assembly for indicating a working status of a withdrawable circuit breaker, comprising: providing a chassis; providing an input component adapted to move relative to the chassis and comprising with a plurality of steps at periphery thereof, the plurality of steps raising step by step against a moving direction of the input component; providing an output component adapted to rotate about a shaft provided on the chassis and comprising a resilient portion at an end, the resilient portion adapted to engage against each of the plurality of steps; and providing an indication portion at the other end of the output component opposite to the resilient portion, wherein in response to the input component moving relative to the chassis, the resilient portion disengages from a first step of the plurality of steps and rotates by a degree around the shaft to engage with a second step next to the first step, such that the output component causes the indication portion to translate by a distance along a direction perpendicular to the shaft.

BRIEF DESCRIPTION OF THE DRAWINGS

Through the following detailed descriptions with reference to the accompanying drawings, the above and other objectives, features and advantages of the example embodiments disclosed herein will become more comprehensible. In the drawings, several example embodiments disclosed herein will be illustrated in an example and in a non-limiting manner, wherein:

Fig. 1 illustrates a schematic diagram of an assembly for indicating a working status of a withdrawable circuit breaker in a first status in accordance with some example embodiments of the present disclosure;

Fig. 2 illustrates a schematic diagram of the assembly shown in Fig. 1 in a second status;

Fig. 3A illustrates a schematic diagram of the assembly shown in Fig. 1 at the moment of transition in accordance with some example embodiments of the present disclosure; and Figs. 3B and 3C illustrate an enlarged view of the assembly shown in Fig. 3A showing different moments of the transition;

Fig. 4 illustrates a perspective view of an assembly shown in Fig. 1 in accordance with some example embodiments of the present disclosure;

Fig. 5 illustrates a schematic diagram of an assembly in accordance with further example embodiments of the present disclosure; and

Fig. 6 illustrates a perspective view of an indication portion in accordance with some example embodiments of the present disclosure.

DETAILED DESCRIPTION

The subject matter described herein will now be discussed with reference to several example embodiments. These embodiments are discussed only for the purpose of enabling those skilled persons in the art to better understand and thus implement the subject matter described herein, rather than suggesting any limitations on the scope of the subject matter.

The term “comprises” or “includes” and its variants are to be read as open terms that mean “includes, but is not limited to. ” The term “or” is to be read as “and/or” unless the context clearly indicates otherwise. The term “based on” is to be read as “based at least in part on. ” The term “being operable to” is to mean a function, an action, a motion or a state can be achieved by an operation induced by a user or an external mechanism. The term “one embodiment” and “an embodiment” are to be read as “at least one embodiment. ” The term “another embodiment” is to be read as “at least one other embodiment. ”

Unless specified or limited otherwise, the terms “mounted, ” “connected, ” “supported, ” and “coupled” and variations thereof are used broadly and encompass direct and indirect mountings, connections, supports, and couplings. Furthermore, “connected” and “coupled” are not restricted to physical or mechanical connections or couplings. In the description below, like reference numerals and labels are used to describe the same, similar or corresponding parts in the figures. Other definitions, explicit and implicit, may be included below.

Some example embodiments of the present disclosure are described below with respect to Figs. 1-6.

Fig. 1 illustrates a schematic diagram of an assembly 10 for indicating a working status of a withdrawable circuit breaker in accordance with some example embodiments of the present disclosure. As shown, the assembly 10 comprises, among other things, a chassis 20, an input component 30, an output component 40 and a resilient portion 42. The input component 30 is adapted to move relative to the chassis 20. Further, the input component 30 comprises a plurality of steps 34 at its periphery 32, wherein the plurality of steps 34 raise step by step against a moving direction of the input component 30. A shaft 44 is provided on the chassis 20. As illustrated in Fig. 1, the output component 40 is adapted to rotate about the shaft 44. The output component 40 has an end 41 and the other end 43 opposite to the end 41. As illustrated, the output component 40 comprises a resilient portion 42 at the end 41 and an indication portion 46 provided at the other end 43. The resilient portion 42 is adapted to engage against each of the plurality of steps 34.

When the input component 30 moves relative to the chassis 20, the resilient portion 42 is compressed and the elastic energy is accumulated. With the continuous moving of the input component 30, the resilient portion 42 is pushed away and disengages from a first step of the plurality of steps 34 to rotate by a degree around the shaft 44. When the resilient portion 42 bounces back under the action of the elastic energy, it engages with a second step, which is next to and higher than the first step. Due to the “jumping” of the resilient portion 42 from the first step to the second step, the output component 40 causes an end of the indication portion 46 to translate by a distance along a direction perpendicular to the shaft 44.

According to embodiments of the present disclosure, the indication portion 46 can bounce once when the resilient portion 42 jumps to a higher step. A clear indication is achieved, so that confusing information where two working statuses are displayed would not be provided by the indication portion 46.

The term “move” used herein refers to translation along a certain linear direction or rotation along a circular direction.

In some embodiments, as illustrated in Fig. 1, the indication portion 46 may comprise a plurality of indication blocks 48 at an end. A window 22 may be provided on the chassis 20 adjacent to the end of the indication portion 46. Among the indication blocks 48, the first of the plurality of indication blocks 48 may align with the window 22. When the translation of the indication portion 46 by the distance, a second indication block next to the first indication block aligns with the window 22. In this way, when the input component 30 rotates, the user can see the transition of the indication blocks from outside. Therefore, the user can understand the current working statues in a conveniently manner.

In some embodiments, the window 22 may be provided with a transparent cover. In this way, external objects such as duct may be prevented to enter the window 22. Therefore, the indicator portion 46 can operate in a cleaner and safer environment.

In some embodiments, the cover may be made of a transparent plastic to allow the user to observe the indication blocks 48 through the window 22. The material of the cover may be any material already known or to be developed in the future, e.g. transparent or translucent glass, or other suitable materials, as long as the material allows the user to observe the indication blocks 48 through the window 22.

In some embodiments, the indication portion 46 may comprise a pivot 462 at an end and a slot 464 provided at the other end. As illustrated in Fig. 4, the pivot 462 is fixed to the chassis 20. The slot 464 is adapted to move relative to a strut 47 provided on the output component 40. When output component 40 rotates, the strut 47 causes the slot 464 to move relative to the strut 47. The indication portion 46 rotates accordingly. In this way, the end of the indication portion 46 translates by the distance along the direction perpendicular to the shaft 44.

In some embodiments, the resilient portion 42 may comprise a slope 422 and an arc face 424. As illustrated in Fig. 5A, the slope 422 and the arc face 424 are provided next to each other on an end of the resilient portion 42. The slope 422 may be planar with a normal line C thereof penetrating through a shaft 44 of the output component 40. As illustrated in Fig. 3B, when the input component 30 moves along a moving direction R1, a corner 35 formed between the adjacent two steps pushes the slope 422 and the resilient portion 42 begins to move relative to the corner 35. When the corner 35 of the input component 30 compresses the slope 422, the action line of the compression force F, which is also the normal line C, would also penetrate through a friction circle around the shaft 44. It is to be understood that the radius of the friction circle may be defined as the product of the friction coefficient and the radius of the shaft 44. As such, at the moment the step compresses and is about to leave the resilient portion 42, no torque would be generated to rotate the output component 40 and the output component 40 would therefore be self-locked. With the elasticity of the resilient portion 42 as well as the self-lock of the output component 40, the unclear indication of the circuit breaker can be avoided in a reliable manner.

According to embodiment of the present disclosure, the working statuses of the circuit breaker may be accurately indicated by a small number of components. In addition, if more statuses are required, the assembly 10 of the present disclosure can also be adapted without making the assembly 10 far more complicated. For example, if six or more statuses need to be indicated, by merely providing the corresponding number of steps on the surface of the input component 30, the assembly 10 can meet the above requirement conveniently.

In some embodiments, the input component 30 may be of disk-shaped which may rotate around a center of rotation 33. As illustrated in Fig. 4, the periphery 32 of the input component 30 comprises a plurality of surfaces 36. Each of the steps being formed by the respective adjacent surfaces of the plurality of surfaces 36.

When the disk rotates around the center of rotation 33, the first step contacting the resilient portion 42 would compress it and causes the elastic potential energy to be accumulated within the resilient portion 42. As the disk continues to rotate, the resilient portion 42 would be pushed away and the disk would turn forwards by an angle. After the resilient portion 42 bounces back under the action of the elastic potential energy, it will contact the second step next to the first one. As such, the resilient portion 42 “jumps” to a step higher than the previous step and the indication portion 46 moves to the next position accordingly, to indicate a different working status. With such a configuration, an operator driving the circuit breaker may deliver its internal motion to the disk, which in turn causes the output component 40 to rotate along its shaft 44, so as to give a clear indication of the circuit breaker position. This would bring about better user experience.

In some embodiments, at least one of the plurality of surfaces 36 is a circular surface centered at the center of rotation 33. As illustrated in Fig. 4, the input component 30 comprises five segments of arc 361-365. Each of the five segments is an arc on the respective circles, with the circles having different radius relative to each other. It is to be understood that the phrase “raising step by step” in this embodiment means that the circles have greater radius against the moving direction, as shown in Fig. 1. In this way, while the resilient portion 42 moves relative to the input component 30 on a single segment of arc 365 with a same radius, the resilient portion 42 would not be actuated.

In this way, the output component 40 can be kept stationary unless the resilient portion 42 translates from a first segment of arc to a second one. Owing to this, the indication blocks 48 would be jumped only when the resilient portion 42 contacting a different step. As illustrated in Fig. 4, this would happen only when the resilient portion 43 jumps from a segment of arc 365 to the next segment of arc 364. The precision of the indication can be improved accordingly.

Although the input component 30 in a disk form with five steps is shown in Fig. 4, it is to be understood that this is merely example without suggesting any limitation as to the scope of the present disclosure. Any other number of the steps may also be possible, for example, three, four, six and even more, which may depend on the demand of the user and the size of assembly 10.

In some embodiments, as illustrated in Fig. 5, the input component 30 may be a slider which slides along a sliding direction L1 perpendicular to the shaft 44. As shown, the periphery 32 of the input component 30 comprises a plurality of surfaces 36. Each of the steps is formed by the respective adjacent surfaces of the plurality of surfaces 36.

When the slider translates along the sliding direction L1, the first step contacting the resilient portion 42 would compress it and causes the elastic potential energy to be accumulated within the resilient portion 42. As the slider continues to slide, the resilient portion 42 would be pushed away and the slider would slide forwards by a distance. After the resilient portion 42 bounces back under the action of the elastic potential energy, it will contact the second step next to the first one. As such, the resilient portion 42 “jumps” to a step higher than the previous step and the indication portion 46 moves to the next position accordingly to indicate a next working status. With such a configuration, an operator driving the circuit breaker may deliver its internal motion to the slider, which in turn causes the output component 40 to rotate along its shaft 44, so as to give a clear indication of the circuit breaker.

In some embodiments, at least one of the plurality of surfaces 36 may be parallel to the sliding direction L1. As illustrated in Fig. 5, the input component 30 in a slider form comprises four segments 366-369. Each of the four segments is a planar face, with the faces having different levels relative to each other, causing the steps to have different height with each other. It is to be understood that the phrase “raising step by step” in this embodiment means that the planar faces have greater height against the moving direction, as shown in Fig. 5. In this way, while the resilient portion 42 moves relative to the input component 30 on a single segment 369 with a same level, the resilient portion 42 would not be actuated.

In this way, the output component 40 can be kept stationary unless the resilient portion 42 translates from a first segment to a second one. Owing to this, the indication blocks 48 would be jumped only when the resilient portion 42 contacting a different step. As illustrated in Fig. 5, this would happen only when the resilient portion 42 jumps from a segment 369 to the next segment 368. The precision of the indication can be improved accordingly.

Although the input component 30 in a slider form with four steps is shown in Fig. 5, it is to be understood that this is merely example without suggesting any limitation as to the scope of the present disclosure. Any other number of the steps may also be possible, for example, three, five and even more, which may depend on the demand of the user and the size of assembly 10.

Fig. 6 illustrates exemplary working statuses of the withdrawable circuit breaker. As shown, the indication portion 46 includes the indication blocks 48 reads “Connect” , “Unblock” , “Test” , “Unblock” , and “Disconnect” in series. It is to be understood that the specific working statuses described herein is merely an example without suggesting any limitation as to the scope of the present disclosure. The statuses may be adjusted according to the actual need of the users.

In some embodiments, the resilient portion 42 may be made of an elastic material to allow the resilient portion 42 to be compressed by the respective step of the input component 30. In this way, the components are easier to assemble and the cost would be kept relatively low. It is to be understood that the material may be any material already known or to be developed in the future, e.g. PE (polyethylene) , PP (polypropylene) , or other suitable materials, as long as the material may provide a suitable degree of elasticity to the resilient portion 42.

In some embodiments, the sizes of the components, e.g. the height of each of the indication blocks, the length of the output component 40 and the arc length of each of the steps 34, etc. may be determined according to the actual environment, such that while the output component 40 jumps once, the indication block can also jump once. In some embodiments, the distance the end of the indication portion 46 moves may be equal to the height of the window 22, such that the respective indication block may be clearly observed from outside through the window 22. In this way, the situation where only a part of the respective indication block can be seen would be eliminated.

In some embodiments, when the space inside the circuit breaker is enough, the indication portion 46 may be integrally formed with the output component 40. In this way, the configuration can be made at lower price and more reliable. Moreover, the space can be fully utilized.

In some embodiments, the input component 30 may be directly connected to a driving element of the operator. In further embodiments, the input component 30 may be connected to the driving element via one or more intermediate members. In this way, the movement inside the circuit breaker may be delivered to the input component 30, which allows the indication portion to indicate the working statuses of the circuit breaker.

In some embodiments, the assembly 10 may further comprise a spring 50 with an end secured on the chassis 20. As illustrated in Fig. 1, the other end of the spring 50 is provided between the shaft 44 and the indication portion 46. The spring 50 may be used as a reset spring and facilitates the resilient portion 42 to engage against the one of the plurality of steps 34.

In some embodiments, the spring 50 may take the form of compression spring. It is to be understood that other forms of spring are possible, for example, a torsion spring, a leaf spring or a wire spring, as long as the spring 50 may exert an elastic force to assist the resilient portion 42 to engage with and disengage from the input component 30.

In some embodiments, if merely a few working statuses need to be indicated, the swing amplitude of the output component 40 would be small accordingly. In such a scenario, the spring 50 may be omitted and instead, a part of the output component 40 may be made flexible to facilitate the engagement of the resilient portion 42 against the one of the plurality of steps.

Referring back to Fig. 3A, when the input component 30 rotates against the moving direction R1, the resilient portion 42 translates from a higher step to a low step. The indication portion 46 may be reversed accordingly. In this way, the indication portion 46 can move in both directions quickly. Therefore, the working statuses of the circuit breaker can be indicated flexibly.

In a second aspect, example embodiments of the present disclosure provide a withdrawable circuit breaker. The withdrawable circuit breaker comprises an assembly 10 of the first aspect.

It is to be understood that the withdrawable circuit breaker described herein is only for illustration purpose instead of limiting the usage of the assembly 10. The assembly 10 in accordance with the present disclosure may be used with other electrical equipment such as low voltage and high voltage circuit breakers.

In a third aspect, example embodiments of the present disclosure provide a method of producing an assembly 10 for indicating a working status of a withdrawable circuit breaker. It is to be understood that the apparatus, the structure or the process involved in the method have been described above with reference to Figs. 1-6, and the details will not be described hereinafter for the sake of brevity.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

An assembly (10) for indicating a working status of a withdrawable circuit breaker, comprising:

a chassis (20) ;

an input component (30) adapted to move relative to the chassis (20) and comprises a plurality of steps (34) at periphery (32) thereof, the plurality of steps (34) raising step by step against a moving direction of the input component (30) ;

an output component (40) adapted to rotate about a shaft (44) provided on the chassis (20) and comprises a resilient portion (42) at an end (41) , the resilient portion (42) adapted to engage against each of the plurality of steps (34) ; and

an indication portion (46) provided at the other end (43) of the output component (40) opposite to the resilient portion (42) ,

wherein in response to the input component (30) moving relative to the chassis (20) , the resilient portion (42) disengages from a first step of the plurality of steps (34) and rotates by a degree around the shaft (44) to engage with a second step next to the first step, such that the output component (40) causes an end of the indication portion (46) to translate by a distance along a direction perpendicular to the shaft (44) .
The assembly (10) of claim 1, wherein

the indication portion (46) comprises a plurality of indication blocks (48) at an end, and the chassis (20) is provided with a window (22) adjacent to the end of the indication portion (46) , with a first indication block of the plurality of indication blocks (48) being adapted to align with the window (22) ;

wherein in response to the indication portion (46) translating by the distance, a second indication block next to the first indication block aligns with the window (22) .
The assembly (10) of claim 1, wherein the indication portion (46) comprises:

a pivot (462) being fixed to the chassis (20) at an end; and

a slot (464) provided at the other end, the slot (464) adapted to move relative to a strut (47) provided on the output component (40) , and

wherein in response to the rotation of the output component (40) , the strut (47) causes the slot (464) to move relative to the strut (47) and then causes the indication portion (46) to rotate, such that the end of the indication portion (46) translates by the distance along the direction perpendicular to the shaft (44) .
The assembly (10) of claim 1, wherein

the resilient portion (42) comprises a slope (422) and an arc face (424) on its end thereof, the slope (422) being adjacent to the arc face (424) , wherein a normal line (C) of the slope (422) penetrating through a friction circle around the shaft (44) .
The assembly (10) of claim 1, wherein

the input component (30) is of disk-shaped and adapted to rotate around a center of rotation (33) , and the periphery (32) of the input component (30) comprises a plurality of surfaces (36) , each of the steps being formed by the respective adjacent surfaces of the plurality of surfaces (36) and the surfaces having greater radius step by step against the moving direction.
The assembly (10) of claim 5, wherein

at least one of the plurality of surfaces (36) is a circular surface centered at the center of rotation (33) .
The assembly (10) of claim 1, wherein

the input component (30) is a slider and adapted to slide along a sliding direction (L1) perpendicular to the shaft (44) , and the periphery (32) of the input component (30) comprises a plurality of surfaces (36) , each of the steps being formed by the respective adjacent surfaces of the plurality of surfaces (36) and the surfaces having greater height step by step against the sliding direction (L1) .
The assembly (10) of claim 7, wherein

at least one of the plurality of surfaces (36) is parallel to the sliding direction (L1) .
The assembly (10) of claim 1, further comprising:

a spring (50) with an end secured on the chassis (20) and the other end provided between the shaft (44) and the indication portion (46) , the spring (50) allowing the resilient portion (42) to engage against the one of the plurality of steps (34) .
A withdrawable circuit breaker comprising an assembly (10) of any of claims 1 to 9.
A method of producing an assembly (10) for indicating a working status of a withdrawable circuit breaker, comprising:

providing a chassis (20) ;

providing an input component (30) adapted to move relative to the chassis (20) and comprising with a plurality of steps (34) at periphery (32) thereof, the plurality of steps (34) raising step by step against a moving direction of the input component (30) ;

providing an output component (40) adapted to rotate about a shaft (44) provided on the chassis (20) and comprising a resilient portion (42) at an end (41) , the resilient portion (42) adapted to engage against each of the plurality of steps (34) ; and

providing an indication portion (46) at the other end (43) of the output component (40) opposite to the resilient portion (42) ,

wherein in response to the input component (30) moving relative to the chassis (20) , the resilient portion (42) disengages from a first step of the plurality of steps (34) and rotates by a degree around the shaft (44) to engage with a second step next to the first step, such that the output component (40) causes the indication portion (46) to translate by a distance along a direction perpendicular to the shaft (44) .