Circuit breaker with indication structure

Abstract

The utility model discloses a circuit breaker with an indicating structure. The circuit breaker comprises a base, a middle cover, an upper cover, an operating mechanism and an indicating piece, the operating mechanism is fixed with the base, the middle cover is fixed on the base, and the upper cover is fixed on the middle cover; the middle cover is provided with an upper space, the upper cover is provided with an indication window, and the indication piece is arranged in the upper space and located at the indication window. The device further comprises an indicating piece reset spring and a sliding block, and one end of a handle of the operating mechanism is located in the upper space. The sliding block is arranged in a sliding mode, and the sliding block and the end, located in the upper space, of the handle are arranged in a linkage mode. The indicating piece is rotationally arranged, and a first indicating surface and a second indicating surface are arranged on the indicating piece; the indicating piece is located in the first movement direction of the sliding block, and when the sliding block moves towards the first movement direction, the indicating piece is driven to rotate, so that the first indicating face is presented at the indicating window. The indicating piece reset spring drives the indicating piece to reset, so that the second indicating surface is presented at the indicating window; the transmission mechanism has the advantage of being simple in transmission structure.

Description

Technical Field

[0001] The present application relates to the electrical field of low-voltage switches, and in particular to a circuit breaker with an indication structure. Background Art

[0002] Existing reclosing circuit breakers generally have mechanical indicators, such as a contact opening and closing indicator device for a leakage reclosing circuit breaker disclosed in CN203325813U. The movement principle of its indicator mechanism is to drive the indicator to rotate through the movement of the contact shaft. The indicator and the contact shaft are distributed in different housings, so the linkage structure of the two must penetrate the housing where the indicator is located to achieve the linkage between the two, and the arc may spray out from the gap of this linkage part.

[0003] Therefore, how to design a mechanical indication that is not directly related to the action of the moving contact is also a problem worth studying. Summary of the invention

[0004] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide a circuit breaker with an indication structure.

[0005] The present application provides: a circuit breaker with an indication structure, which includes a base, a middle cover, an upper cover, an operating mechanism and an indicating member; the operating mechanism is fixed to the base, the middle cover is fixed to the base, and the upper cover is fixed to the middle cover; an upper space is provided on the middle cover, an indicating window is provided on the upper cover, and the indicating member is provided in the upper space and located at the indicating window; wherein, it also includes an indicating member reset spring and a slider, and one end of the handle of the operating mechanism is located in the upper space; the slider is slidingly arranged, and the slider and the end of the handle located in the upper space are linked; the indicating member is rotatably arranged, and a first indicating surface and a second indicating surface are provided on the indicating member; the indicating member is located in the first movement direction of the slider, and when the slider moves in the first movement direction, the indicating member is driven to rotate so that the first indicating surface appears at the indicating window; the indicating member reset spring is used to drive the indicating member to reset after the pushing force of the slider on the indicating member disappears, so that the second indicating surface appears at the indicating window.

[0006] With this structure, the indicating structure is associated with the handle of the circuit breaker through the slider structure (part of the handle of the existing circuit breaker itself will penetrate into the middle cover), and does not need to be associated with the moving contact. In this way, mechanical indication can be achieved, avoiding the need to open a hole in the middle cover as in the prior art (in the hole for the indicating member to cooperate with the moving contact), so that the arc can be prevented from being ejected from such a hole (since such a hole does not exist, there will be no ejection).

[0007] In some embodiments of the present application, a first position detection switch is further included, and the first position detection switch is triggered by the indicator member when the first indication surface is presented in the indication window.

[0008] State feedback can be implemented through the first position detection switch, which feedbacks that the circuit breaker is in a first state, such as a closed state.

[0009] In some embodiments of the present application, a second position detection switch is further included, and the second position detection switch is triggered by the indicator member when the second indication surface is presented in the indication window.

[0010] State feedback can be implemented through the second position detection switch, which feedbacks that the circuit breaker is in the second state, such as the open state.

[0011] In some embodiments of the present application, a first position detection switch is also included, and the indicator member includes a rotating matching portion, a first trigger portion and an indicating portion, the first trigger portion and the indicating portion are both connected to the rotating matching portion, the first indicating surface and the second indicating surface are arranged on the indicating portion, and when the first indicating surface is presented in the indicating window, the first trigger portion triggers the first position detection switch.

[0012] State feedback can be implemented through the first position detection switch, which feedbacks that the circuit breaker is in a first state, such as a closed state.

[0013] In some embodiments of the present application, a second position detection switch is also included, and the indicator member includes a rotating matching portion, a second trigger portion and an indicating portion, the second trigger portion and the indicating portion are both connected to the rotating matching portion, the first indicating surface and the second indicating surface are arranged on the indicating portion, and when the second indicating surface is presented in the indicating window, the second trigger portion triggers the second position detection switch.

[0014] State feedback can be implemented through the second position detection switch, which feedbacks that the circuit breaker is in the second state, such as the open state.

[0015] In some embodiments of the present application, a reduction gear box is also included, and a shaft-like component is arranged on one side of the reduction gear box; the indicator includes a rotational matching portion and an indicating portion, the first indicating surface and the second indicating surface are arranged on the indicating portion, and the rotational matching portion is sleeved on the shaft-like component and is rotatably arranged.

[0016] With this structure, the indicator is arranged on one side of the reduction gear box, so that the reduction gear box is associated with the indicator, making the internal structure of the circuit breaker more compact.

[0017] In some embodiments of the present application, a first limiting step is provided on the shaft-like component, and the rotational fitting portion is restricted between the side surface of the reduction gear box and the first limiting step to prevent the rotational fitting portion from easily detaching from the shaft-like component.

[0018] By adopting this setting of the first limiting step, the indicator and the reduction gear box can form a small module. After assembling this small module, it can be installed into the middle cover, thus avoiding the need to install different components multiple times in the narrow space of the middle cover.

[0019] In some embodiments of the present application, a mating through hole is opened on the rotating mating part, and the mating through hole includes a first hole portion and a second hole portion, the shape of the first hole portion is consistent with the shaft-like component, and the shape of the second hole portion is consistent with the first limit step; after the rotating mating part is sleeved on the shaft-like component and the first limit step through the mating through hole, the indicator member reset spring is used to cause the first limit step and the second hole portion to be misaligned to prevent the rotating mating part from easily detaching from the shaft-like component.

[0020] This structure is beneficial to the assembly between the reduction gear box and the indicator, making it easier to form a stable small module.

[0021] In some embodiments of the present application, a spring mounting portion is provided on the reduction gear box, one end of the indicator member return spring acts on the spring mounting portion, and the other end acts on the indicator member.

[0022] The design of this structure is beneficial to the arrangement of the indicator member return spring.

[0023] In some embodiments of the present application, an indicator blocking portion is provided on the reduction gear box, the indicator blocking portion is located on one side of the indicator, the first indicating surface is presented behind the indicating window, and the indicator blocking portion is used to prevent the indicator from excessive movement.

[0024] This structural arrangement can prevent the indicator from continuing to deflect after the first indicator surface is rotated to align with the indicator window, thereby preventing the first indicator surface from being misaligned with the indicator window.

[0025] In some embodiments of the present application, a DC motor and a crank are also included. A reduction gear group is arranged in the reduction gear box. The DC motor is connected to the input end of the reduction gear group, and the crank is connected to the output end of the reduction gear group. A crank slider mechanism is formed between the crank and the slider. The slider is sleeved on the handle, and through the continuous output of the DC motor, the crank acts on the slider, causing the slider to reciprocate between the first movement direction and the second movement direction, thereby realizing the opening and closing operation of the operating mechanism.

[0026] With this structure, the circuit breaker can be opened and closed by the DC motor, and the DC motor can also be used to drive the slider to move, so that the indicator rotates and presents an indication.

[0027] In some embodiments of the present application, it also includes a rotating shaft, a crank is fixed at one end of the rotating shaft, a handle socket is opened on the other end of the rotating shaft, the handle socket is exposed on the upper surface of the reduction gear box, and an exposed hole corresponding to the handle socket is opened on the upper cover; the output end of the reduction gear group is connected to the rotating shaft through a clutch structure, and the clutch structure means that the rotating shaft itself is disengaged from the output end when rotating in a first direction, and the output gear is in a transmission connection with the rotating shaft when rotating in the first direction.

[0028] With this structure, the circuit breaker can be opened and closed by manually driving the rotating shaft, and the sliding block can also be driven to move by the rotating shaft, so that the indicating member rotates and presents an indication.

[0029] In some embodiments of the present application, a guide rail is provided in the upper space, and the slider is sleeved on the guide rail in a sliding manner.

[0030] The design of the guide rail will make the movement of the slider smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A three-dimensional diagram of a circuit breaker according to Embodiment 1 of the present application is shown;

[0033] Figure 2 A schematic diagram showing the circuit breaker of Embodiment 1 of the present application after the upper cover is removed is shown;

[0034] Figure 3 The diagram shows the position relationship between the indicator and the slider when the circuit breaker of Embodiment 1 of the present application is in the open state;

[0035] Figure 4 The diagram shows the position relationship between the indicator and the slider when the circuit breaker of Embodiment 1 of the present application is in the closed state;

[0036] Figure 5 A schematic diagram of the structure of an indicator and an indicator reset spring in a circuit breaker in Embodiment 1 of the present application is shown;

[0037] Figure 6 A schematic diagram and a partial enlarged diagram of an indicator, a first position detection switch, and a second position detection switch in a circuit breaker in Embodiment 1 of the present application are shown;

[0038] Figure 7It shows a schematic diagram of the indicator in the circuit breaker of Embodiment 1 of the present application triggering the second position detection switch;

[0039] Figure 8 It shows a schematic diagram of the indicator in the circuit breaker of Embodiment 1 of the present application triggering the first position detection switch;

[0040] Fig. 9 A schematic diagram showing the structure of the indicator and the reduction gear box in the circuit breaker of Example 1 of the present application is shown;

[0041] Fig.10 A partial schematic diagram of a reduction gear box in a circuit breaker in Example 1 of the present application is shown;

[0042] Fig.11 A schematic diagram of a slider, a guide rail and a handle in a circuit breaker in Embodiment 1 of the present application is shown;

[0043] Fig.12 A schematic diagram of a slider in a circuit breaker in Embodiment 1 of the present application is shown;

[0044] Fig.13 A schematic diagram showing the reduction gear box in the circuit breaker of Embodiment 1 of the present application after the box cover is removed;

[0045] Fig.14 Another schematic diagram showing the reduction gear box in the circuit breaker of Embodiment 1 of the present application after the box cover is removed;

[0046] Fig.15 The diagram shows the position relationship between the crank and the slider when the circuit breaker of Embodiment 1 of the present application is in the closed position;

[0047] Fig.16 The diagram shows the position relationship between the crank and the slider when the circuit breaker of Embodiment 1 of the present application is in the open position;

[0048] Fig.17 A schematic diagram of the structure of an output gear and a rotating shaft in a circuit breaker in Embodiment 1 of the present application is shown;

[0049] Fig.18 A schematic diagram of the clutch structure of an output gear and a rotating shaft in a circuit breaker according to Example 1 of the present application is shown. DETAILED DESCRIPTION

[0050] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] In addition, the terms "primary" and "secondary" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "primary" and "secondary" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0053] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the present application, unless otherwise clearly specified and limited, when a main feature is “above” or “below” a second feature, it can mean that the main feature and the second feature are in direct contact, or the main feature and the second feature are in indirect contact through an intermediate medium. Moreover, when a main feature is “above”, “above” or “above” a second feature, it can mean that the main feature is directly above or obliquely above the second feature, or simply means that the main feature is higher in level than the second feature. When a main feature is “below”, “below” or “below” a second feature, it can mean that the main feature is directly below or obliquely below the second feature, or simply means that the main feature is lower in level than the second feature. Example

[0055] like Figure 1-Figure 18 As shown, an embodiment of the present application provides a circuit breaker with an indication structure.

[0056] The circuit breaker includes a circuit breaker housing, an operating mechanism, a contact assembly, an arc extinguishing assembly, and the like.

[0057] The circuit breaker housing includes a base 101, a middle cover 102 and an upper cover 103. Here, the base 101 is arranged below the middle cover 102, and the base 101 and the middle cover 102 are fastened by bolts. The upper cover 103 is arranged above the middle cover 102, and the upper cover 103 and the middle cover 102 are also fastened by bolts. Of course, in addition to this, bolts can be used to fasten all three, or other fastening methods can be used. No matter which method is used, as long as the stability of the three structures can be guaranteed.

[0058] An upper space 102a is formed on the middle cover 102, and the upper space 102a is surrounded by the partition wall 1021 through the side wall 1022. Here, the partition wall 1021 is not a completely closed wall, nor a regular wall. Its main function is to separate the components inside the middle cover 102 from the components on the base 101, of course, this does not include the handle K of the operating mechanism, because one end of the handle K of the operating mechanism needs to pass through the partition wall 1021 and be located in the upper space 102a.

[0059] The operating mechanism is fixed on the base 101. Most of the components of the operating mechanism are arranged below the middle cover 102, that is, below the partition wall 1021. Only the handle K of the operating mechanism passes through the partition wall 1021 and extends into the upper space 102a. Of course, there is enough space reserved on the partition wall 1021 for the handle K to move. By controlling the movement of the handle K, the opening and closing operations of the circuit breaker can be realized.

[0060] A rotating indicator 200 is arranged in the upper space 102a, and a first indicator surface 201a and a second indicator surface 201b are arranged on the indicator 200. The upper cover 103 has an indicator window 103a at the position where the indicator 200 is located. An indicator reset spring 210 is arranged on the indicator 200, and when the indicator 200 is not subjected to external force, the indicator reset spring 210 will cause the second indicator surface 201b to appear in the indicator window 103a.

[0061] A sliding slider 300 is provided in the upper space 102a. The slider 300 is sleeved on one end of the handle K, that is, a linkage is formed between the two. The movement direction of the slider 300 is a first movement direction S1 and a second movement direction S2. The first movement direction S1 and the second movement direction S2 are diametrically opposite. The first movement direction S1 corresponds to the closing direction of the operating mechanism, while the second movement direction S2 corresponds to the opening direction of the operating mechanism. Two guide rails 301 are also provided in the upper space 102a. Both ends of the slider 300 are sleeved on the guide rails 301, and the slider 300 slides in the first movement direction S1 and the second movement direction S2 along the guide rails 301.

[0062] The indicator 200 is located in the first movement direction S1 and intersects with the slider 300, so that when the slider 300 moves in the first movement direction S1, the operating mechanism is closed, the slider 300 touches the indicator 200 to rotate, and the rotated indicator 200 presents the first indication surface 201a in the indication window 103a. When the slider 300 slides in the second movement direction S2, the operating mechanism is opened, and the indicator 200 returns to its original position under the action of the indicator reset spring 210, presenting the second indication surface 201b in the indication window 103a.

[0063] Here, the first indication surface 201a and the second indication surface 201b may be text, patterns, colors, or English letters, etc.

[0064] In order to realize the feedback of the signal according to the state of the circuit breaker, a first position detection switch 310 and a second position detection switch 320 are also provided inside the upper space 102a. The first position detection switch 310 here is triggered by the indicator 200 when the first indication surface 201a is presented in the indication window 103a. The second position detection switch 320 is triggered by the indicator 200 when the second indication surface 201a is presented in the indication window 103a. That is to say, when the slider 300 pushes the operating mechanism to close the switch, the indicator 200 rotates to trigger the first position detection switch 310, and when the indicator 200 is reset, the indicator 200 rotates to trigger the second position detection switch 320. The first position detection switch 310 and the second position detection switch 320 here are both electrically connected to the circuit board assembly 400. Here, the first position detection switch 310 and the second position detection switch 320 do not have to be set at the same time, and only one of them can be set.

[0065] The indicator 200 includes a rotational matching portion 202, a first trigger portion 203, a second trigger portion 204, and an indicator portion 201, wherein the first trigger portion 203, the second trigger portion 204, and the indicator portion 201 are all connected to the rotational matching portion 202. The first indicator surface 201a and the second indicator surface 201b are located on the indicator portion 201. The first trigger portion 203 is used to trigger the first position detection switch 310, and the second trigger portion 204 is used to trigger the second position detection switch 320.

[0066] Here, the slider 300 drives the first triggering part 203 to realize the rotation of the indicator 200. Of course, in addition to this, the slider 300 can also drive other parts of the slider 300 to realize the rotation of the indicator 200.

[0067] Here, the first position detection switch 310 and the second position detection switch 320 are micro switches, and other switches may be travel switches, photoelectric switches, infrared induction switches, Hall switches, etc. At the same time, the first position detection switch 310 and the second position detection switch 320 may be switches of the same type, or a combination of switches of different types (for example, the first position detection switch 310 is a travel switch, and the second position detection switch 320 is a micro switch).

[0068] The function of the first position detection switch 310 and the second position detection switch 320 is mainly to feedback the opening and closing status of the circuit breaker to the circuit board assembly 400. The circuit board assembly 400 can perform the next step of processing according to the opening and closing signal. The next step of processing here includes but is not limited to feeding back the signal to the host computer, using it as a basis for motor control logic judgment, and using it as a basis for data recording, etc.

[0069] There are many specific ways to set the indicator 200. It can be directly connected to the middle cover 102 or indirectly connected to the middle cover 102. The following is an example of a structure that is indirectly connected to the middle cover 102.

[0070] The reduction gear box 500 is fixed in the upper space 102a. A shaft-like component 500a extends from the side of the box cover of the reduction gear box 500. The rotational matching portion 202 is sleeved on the shaft-like component 500a to form a rotational connection with the reduction gear box 500.

[0071] In order to prevent the rotating fitting part 202 from falling off easily, a first limiting step 500b is also provided on the shaft part 500a. After the rotating fitting part 202 is installed in place, the first limiting step 500b will block the rotating fitting part 202, so that the rotating fitting part 202 is located between the first limiting step 500b and the side of the reduction gear box 500.

[0072] Here, the number of the first limiting step 500b is two, and the specific limiting relationship between it and the rotating matching part 202 is as follows: a matching through hole 202a is opened on the rotating matching part 202, and the matching through hole 202a includes a first hole portion 202a1 and a second hole portion 202a2. The shape of the first hole portion 202a1 here matches the shaft-shaped component 500a; the number of the second hole portion 202a2 here is two, which corresponds to the first limiting step 500b one by one, and the shape of the second hole portion 202a2 matches the first limiting step 500b. During installation, align the first limiting step 500b with the second hole portion 202a2, and then push the rotating matching part 202 into place. After it is fully pushed in, due to the indicator reset spring 210 (after the indicator reset spring 210 is installed), the indicator reset spring 210 will rotate with the push indicator 200, so that the first limiting step 500b is misaligned with the second hole portion 202a2, and the installation is completed.

[0073] Here, the spring mounting portion 500d on the cover of the reduction gear box 500 is located near the shaft-shaped component 500a, and the spring mounting portion 500d here is used to act on one end of the indicator reset spring 210, and the other end of the indicator reset spring 210 acts on the indicator 200. Here, the indicator reset spring 210 adopts a torsion spring, which is sleeved on the indicator 200, one end of which is connected to the indicator 200, and the other end abuts on the spring mounting portion 500d. Of course, in addition to this, the indicator reset spring 210 can also adopt other forms of elastic members such as compression springs, tension springs, and spring sheets.

[0074] Here, an indicator blocking portion 500c is also provided on the cover of the reduction gear box 500, and the indicator blocking portion 500c here is mainly used to prevent the indicator 200 from excessive rotation, specifically to prevent the indicator 200 from continuing to rotate after the first indication surface 201a is completely presented in the indication window 103a.

[0075] The DC motor 600, the crank 701 and the reduction gear box 500 cooperate to realize the electric operation of the circuit breaker, and the specific implementation method is as follows:

[0076] A reduction gear set is arranged in the reduction gear box 500, and the reduction gear set includes at least two stages of duplex teeth and an output gear 503 (that is, the output end of the reduction gear set), which is a three-pole duplex tooth here. The large tooth portion of the first-stage duplex teeth 501 meshes with the input portion of the DC motor 600. Then the meshing relationship between the duplex teeth of each pole satisfies that the small tooth portion of the duplex teeth of the previous stage meshes with the large tooth portion of the duplex teeth of the next stage. The small tooth portion of the third-stage duplex teeth 502 meshes with the output gear 503, and the output gear 503 is connected to the crank 701 for transmission. In this way, the output of the DC motor 600 can be decelerated and converted into a suitable torque for output. Here, the pitch circle diameter of the output gear 503 is greater than the pitch circle diameter of any duplex teeth (that is, the pitch circle diameter of the large tooth portion of any duplex teeth). The duplex teeth of each pole also satisfy that the pitch circle diameter of the large tooth portion of the duplex teeth of the next stage is greater than the pitch circle diameter of the duplex teeth of the previous stage.

[0077] The crank 701 is connected to the output gear 503, so that the output gear 503 rotates and drives the crank 701 to rotate. The slider 300 has an opening drive surface 300b and a closing drive surface 300a, and the crank 701 switches back and forth between the opening drive surface 300b and the closing drive surface 300a. When the opening drive surface 300b is touched, the slider 300 slides along the second movement direction S2, and when the closing drive surface 300a is touched, the slider 300 slides along the first movement direction S1. Such reciprocating motion realizes the crank slider 300 mechanism and realizes the opening and closing of the circuit breaker.

[0078] The transmission connection between the output gear 503 and the crank 701 is completed by the rotating shaft 700, and the rotating shaft 700 can also be used for manual operation. Here, the crank 701 is fixed to the lower end of the rotating shaft 700, and the upper end of the rotating shaft 700 has a handle insertion hole 700a. One end of the rotating shaft 700 with the handle insertion hole 700a is exposed on the upper surface of the reduction gear box 500, and an exposed hole 103b is opened at the corresponding position of the upper cover 103. By inserting the external handle through the exposed hole 103b into the handle insertion hole 700a, the rotating shaft 700 can be driven to rotate by the external handle, causing the rotation of the crank 701. Here, the rotating shaft 700 and the output gear 503 are connected by a clutch structure, that is, when the rotating shaft 700 rotates along the first direction F1 (it can also be said to rotate clockwise), the rotating shaft 700 is disengaged from the output gear 503, and the rotation of the rotating shaft 700 will not cause the rotation of the output gear 503. When the output gear 503 rotates along the first direction (that is, clockwise), transmission can be formed between the output gear 503 and the rotating shaft 700.

[0079] There are many options for this clutch structure. The following is an example of a relatively simple implementation. The clutch structure includes a driving finger 702, an elastic member 704, and a transmission channel 703. The transmission channel 703 is a hole opened on the output gear 503. The hole wall of this hole includes a connected stop wall 703a and a curved wall 703b. The curved wall 703b is located in the clockwise direction of the stop wall 703a. The driving finger 702 is penetrated on the rotating shaft 700 and can slide along the radial direction of the rotating shaft 700. The elastic member 704 is a spring structure, and energy is stored when the driving finger 702 retracts toward the rotating shaft 700. The driving finger 702 is located outside the rotating shaft 700. When the rotating shaft 700 rotates in the first direction (clockwise), the driving finger 702 will slide along the arc wall 703b and gradually retract into the rotating shaft 700. In this way, since there is no force transmission relationship between the driving finger 702 and the transmission channel 703 in the radial direction, the rotating shaft 700 is disengaged from the output gear 503 (here, the disengagement refers to the lack of force transmission between the two). On the contrary, when the output gear 503 rotates in the first direction F1 (clockwise), since the stop wall 703a acts on the driving finger 702, the two are stuck in the radial direction, that is, there is a force transmission relationship between the driving finger 702 and the transmission channel 703 in the radial direction, so the output gear 503 will drive the rotating shaft 700 to rotate.

[0080] It can be seen that the movement of the slider 300 can be achieved by electric operation or manual operation.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0082] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A circuit breaker with an indication structure, comprising a base, a middle cover, an upper cover, an operating mechanism and an indicating member; the operating mechanism is fixed to the base, the middle cover is fixed to the base, and the upper cover is fixed to the middle cover; an upper space is provided on the middle cover, an indicating window is provided on the upper cover, and the indicating member is provided in the upper space and located at the indicating window; the characteristics are as follows: It also includes an indicator reset spring and a slider, one end of the handle of the operating mechanism is located in the upper space; the slider is set to slide, and the slider and the end of the handle located in the upper space are linked; the indicator is set to rotate, and a first indicating surface and a second indicating surface are provided on the indicator; the indicator is located in the first movement direction of the slider, and the indicator is driven to rotate when the slider moves in the first movement direction, so that the first indicating surface appears in the indicating window; the indicator reset spring is used to drive the indicator to reset after the pushing force of the slider disappears, so that the second indicating surface appears in the indicating window.

2. A circuit breaker with an indication structure according to claim 1, characterized in that: It also includes a first position detection switch, which is triggered by the indicator when the first indication surface is presented in the indication window; And / or, it also includes a second position detection switch, which is triggered by the indicator when the second indication surface is presented in the indication window.

3. A circuit breaker with an indication structure according to claim 1, characterized in that: It also includes a first position detection switch, the indicator includes a rotation matching portion, a first trigger portion and an indicating portion, the first trigger portion and the indicating portion are both connected to the rotation matching portion, the first indicating surface and the second indicating surface are arranged on the indicating portion, and when the first indicating surface is presented in the indicating window, the first trigger portion triggers the first position detection switch; And / or, it also includes a second position detection switch, the indicator includes a rotating matching part, a second trigger part and an indicating part, the second trigger part and the indicating part are both connected to the rotating matching part, the first indicating surface and the second indicating surface are arranged on the indicating part, and when the second indicating surface is presented in the indicating window, the second trigger part triggers the second position detection switch.

4. A circuit breaker with an indication structure according to claim 1, characterized in that: It also includes a reduction gear box, and a shaft-shaped component is arranged on one side of the reduction gear box; the indicator includes a rotation matching portion and an indicating portion, the first indicating surface and the second indicating surface are arranged on the indicating portion, and the rotation matching portion is sleeved on the shaft-shaped component and is rotatably arranged.

5. A circuit breaker with an indication structure according to claim 4, characterized in that: A first limiting step is provided on the shaft-shaped component, and the rotationally fitting portion is limited between the side surface of the reduction gear box and the first limiting step to prevent the rotationally fitting portion from being easily separated from the shaft-shaped component.

6. A circuit breaker with an indication structure according to claim 5, characterized in that: A mating through hole is provided on the rotating mating part, and the mating through hole includes a first hole portion and a second hole portion. The shape of the first hole portion is consistent with the shaft-like component, and the shape of the second hole portion is consistent with the first limit step. After the rotating mating part is sleeved on the shaft-like component and the first limit step through the mating through hole, the first limit step and the second hole portion are misaligned by using the indicator member reset spring to prevent the rotating mating part from easily detaching from the shaft-like component.

7. A circuit breaker with an indication structure according to claim 4, characterized in that: A spring mounting portion is provided on the reduction gear box, one end of the indicator member return spring acts on the spring mounting portion, and the other end acts on the indicator member; And / or, an indicator blocking portion is provided on the reduction gear box, the indicator blocking portion is located on one side of the indicator, the first indicating surface is presented behind the indicating window, and the indicator blocking portion is used to prevent the indicator from excessive movement.

8. A circuit breaker with an indication structure according to claim 4, characterized in that: It also includes a DC motor and a crank. A reduction gear set is arranged in the reduction gear box. The DC motor is connected to the input end of the reduction gear set, and the crank is connected to the output end of the reduction gear set. A crank slider mechanism is formed between the crank and the slider. The slider is sleeved on the handle, and through the continuous output of the DC motor, the crank acts on the slider, causing the slider to reciprocate between the first movement direction and the second movement direction, thereby realizing the opening and closing operation of the operating mechanism.

9. A circuit breaker with an indication structure according to claim 8, characterized in that: It also includes a rotating shaft, a crank is fixed at one end of the rotating shaft, a handle socket is opened on the other end of the rotating shaft, the handle socket is exposed on the upper surface of the reduction gear box, and an exposed hole corresponding to the handle socket is opened on the upper cover; the output end of the reduction gear set is connected to the rotating shaft through a clutch structure, and the clutch structure means that the rotating shaft itself is disengaged from the output end when rotating in a first direction, and the output gear is in transmission connection with the rotating shaft when rotating in the first direction.

10. A circuit breaker with an indication structure according to claim 1, characterized in that: A guide rail is arranged in the upper space, and the sliding block is sleeved on the guide rail in a sliding manner.

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