Circuit breaker

Abstract

The utility model relates to a circuit breaker, comprising a body comprising an operation handle; the electric operating mechanism, the inner shell and the control panel are sequentially arranged above the body in the height direction of the circuit breaker; the electric operating mechanism is connected with the operating handle and is used for driving the operating handle to be switched on or switched off; the control panel is used for controlling the electric operating mechanism; the surface cover is connected with the body and covers the electric operating mechanism, the inner shell and the control panel; the indicating piece is installed on the inner shell, and the resetting piece is located between the indicating piece and the inner shell; when the electric operating mechanism drives the operating handle to move for closing, the electric operating mechanism and / or the operating handle can push the indicating piece to move, the reset piece stores energy, and the indicating piece indicates closing. When the electric operating mechanism drives the operating handle to move for opening, the indicating piece is released and is reset under the action of the reset piece, and the indicating piece indicates opening.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker. Background Art

[0002] A circuit breaker is a switch device that can close, carry and interrupt the current under normal circuit conditions and can close, carry and interrupt the current under abnormal circuit conditions within a specified time. Existing circuit breakers have the following problems: the various structural layouts of the circuit breaker are not compact enough, resulting in a large size of the circuit breaker, which does not meet the user's demand for miniaturization of the circuit breaker. Utility Model Content

[0003] Based on this, in order to solve the above problems, a circuit breaker is provided, which has a compact structure and a small volume, and can meet the miniaturization requirements.

[0004] A circuit breaker, comprising:

[0005] The body includes an operating handle;

[0006] The electric operating mechanism, the inner shell and the control panel are sequentially installed above the main body in the height direction of the circuit breaker; the electric operating mechanism is connected to the operating handle to drive the operating handle to close or open the circuit breaker; the control panel is used to control the electric operating mechanism;

[0007] A cover connected to the body and arranged outside the electric operating mechanism, the inner shell and the control panel;

[0008] An indicator is installed on the inner shell; when the electric operating mechanism drives the operating handle to move to close the switch, the electric operating mechanism and / or the operating handle can push the indicator to move, and the indicator indicates closing the switch; when the electric operating mechanism drives the operating handle to move to open the switch, the indicator resets to indicate opening the switch.

[0009] In the above-mentioned circuit breaker, the body, electric operating mechanism, inner shell and control panel are arranged in sequence in the height direction of the circuit breaker, the indicator is installed on the inner shell, and the cover is connected to the body and is arranged outside the electric operating mechanism, inner shell, control panel, indicator and reset member. Such assembly makes the various structures related to the circuit breaker and the electric operating mechanism compactly assembled, making the volume of the circuit breaker small, meeting the user's demand for miniaturization of the circuit breaker. At the same time, since the circuit breaker includes an indicator, when the circuit breaker is closed or opened, the indicator can display the closing or opening state. In this way, the user can know whether the circuit breaker is in the closed state or the open state by observing the indicator, which is convenient for intuitively observing the state of the circuit breaker.

[0010] In one embodiment, the circuit breaker further comprises a reset member, wherein the reset member is located between the indicator member and the inner shell; the indicator member is slidably disposed on the inner shell;

[0011] When the electric operating mechanism drives the operating handle to move to close the switch, the electric operating mechanism and / or the operating handle can push the indicator to move, the reset member stores energy, and the indicator indicates closing the switch; when the electric operating mechanism drives the operating handle to move to open the switch, the indicator is released and reset under the action of the reset member, and the indicator indicates opening the switch.

[0012] In one embodiment, the inner shell is provided with a mounting groove, the reset member is arranged in the mounting groove, and when the operating handle is closed, the indicator member can push the reset member to compress and store energy; or

[0013] The inner shell and the indicator are provided with hooks, and the two ends of the reset member are respectively hung on the hooks of the inner shell and the indicator. When the operating handle is closed, the indicator can stretch the reset member to store energy.

[0014] In one embodiment, a display window is provided on the surface cover, the indicator is slidably provided on the inner shell, and the indicator is provided with a closing indicator portion and an opening indicator portion;

[0015] When the circuit breaker is in a closed state, the closing indicator is located at the display window to display closed; when the circuit breaker is in an open state, the opening indicator is located at the display window to display open.

[0016] In one embodiment, the indicator further comprises a driving part, the closing indicator and the opening indicator are both connected to the driving part, and the electric operating mechanism and / or the operating handle can push the indicator to move through the driving part;

[0017] In the width direction of the circuit breaker, the driving part is located on one side of the operating handle, the control panel is located above the operating handle, and the closing indicator and the opening indicator are both located above the control panel.

[0018] In one embodiment, the circuit breaker further comprises a micro switch, which is mounted on the inner housing and located on the movable path of the indicator;

[0019] When the operating handle is closed, the indicator can move to trigger the micro switch, and the micro switch transmits a closing signal to the controller of the circuit breaker; when the operating handle is opened, the micro switch is released by the indicator, and the micro switch transmits an opening signal to the controller.

[0020] In one embodiment, the circuit breaker further comprises:

[0021] A power circuit board is located between the main body and the inner shell;

[0022] The carrier circuit board is installed on the body and electrically connected to the power circuit board. The electric operating mechanism draws power from the carrier circuit board, and the control board draws power from the power circuit board or the carrier circuit board.

[0023] In one embodiment, the circuit breaker further includes an adapter board and a controller, and the control board communicates with the controller through the adapter board.

[0024] In one embodiment, the adapter plate includes a first sub-plate and a second sub-plate, and the first sub-plate and the second sub-plate are arranged in sequence in the height direction of the circuit breaker;

[0025] The second sub-board is farther away from the control board than the first sub-board, the controller is connected to the second sub-board, and the control board is connected to the first sub-board.

[0026] In one embodiment, the second sub-board includes a short side board and a long side board, the short side board and the long side board are interconnected and vertically arranged, the short side board is located directly below the first sub-board and is used to be electrically connected to the first sub-board, and the long side board is electrically connected to the controller.

[0027] In one embodiment, the electric operating mechanism includes a mounting seat, a driving member, a transmission assembly and a connecting rod rocker arm assembly, wherein the mounting seat is arranged on the body, the driving member is installed on the mounting seat, the transmission assembly is connected to the driving member, and the transmission assembly includes a final gear;

[0028] The connecting rod rocker arm assembly comprises:

[0029] A connecting rod, one end of which is hinged to the final gear, and the hinge point is not colinear with the rotation axis of the final gear;

[0030] A rocker arm, one end of which is hinged to the mounting seat, and a middle portion of which is hinged to the other end of the connecting rod, wherein the end of the rocker arm that is not hinged to the mounting seat forms a mating portion that is mated with the operating handle, and the driving member can drive the operating handle to move through the transmission assembly and the connecting rod rocker arm assembly, so that the circuit breaker is closed or opened;

[0031] When the connecting rod rocker arm assembly drives the operating handle to move and close the switch, the connecting rod rocker arm assembly and / or the operating handle can push the indicating member to move relative to the inner shell.

[0032] In one embodiment, the electric operating mechanism further includes a manual component, the transmission component is connected to the manual component, and the manual component can drive the operating handle to move to close or open the switch through the transmission component and the connecting rod rocker arm component;

[0033] The circuit breaker further comprises a handle, which is detachably mounted on a side of the cover close to the indicator, and comprises a gripping portion and an operating portion, wherein the gripping portion is configured to be convenient for human hand gripping, and the operating portion is used to operate the manual assembly;

[0034] The cover is provided with an operating hole opposite to the manual assembly; the circuit breaker further comprises a push plate, which is movably provided on the cover so as to be able to move between a first position and a second position relative to the cover;

[0035] When the push plate is in the first position, the push plate closes the operating hole to shield the manual component; when the push plate is in the second position, the push plate opens the operating hole to expose the manual component to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 An exploded diagram of a circuit breaker provided in one embodiment of the present application;

[0037] Figure 2 for Figure 1 A structural diagram of another perspective of the circuit breaker shown in ;

[0038] Figure 3 for Figure 1 A structural diagram of a partial structure of a circuit breaker shown in ;

[0039] Figure 4 for Figure 1 A structural diagram of a partial structure of a circuit breaker shown in ;

[0040] Figure 5 for Figure 4 An exploded view of the structure shown in;

[0041] Figure 6 for Figure 3 A structural diagram of another perspective of the structure shown in;

[0042] Figure 7 A circuit breaker structure diagram provided for another embodiment of the present application;

[0043] Figure 8 A structural diagram of an electric operating mechanism provided in one embodiment of the present application;

[0044] Fig. 9 for Figure 8 A structural diagram of the electric operating mechanism from another perspective shown in ;

[0045] Fig.10 for Figure 8 A structural diagram of the electric operating mechanism from another perspective shown in ;

[0046] Fig.11 for Figure 8 A structural diagram of the electric operating mechanism from another perspective shown in ;

[0047] Fig.12 A structural diagram of an electric operating mechanism provided in another embodiment of the present application;

[0048] Fig.13 for Fig.12 A structural diagram of the electric operating mechanism from another perspective shown in ;

[0049] Fig.14 for Fig.12 A structural diagram of the electric operating mechanism from another perspective shown in ;

[0050] Fig.15 for Figure 8 A sectional view of a partial structure of a final driven gear of an electric operating mechanism shown in ;

[0051] Fig.16 for Fig.15 An exploded view of the structure shown in;

[0052] Fig.17 for Figure 1 The assembly drawing of the circuit breaker shown in;

[0053] Fig.18 for Figure 7 The structural diagram of the circuit breaker from another perspective is shown in .

[0054] Description of reference numerals:

[0055] 1000, circuit breaker; 100, electric operating mechanism; 10, driving member; 20, first driving gear; 30, driven gear; 30a, first primary driven gear; 30b, first driven gear; 30c, second driven gear; 30d, third driven gear; 30e, fourth driven gear; 30f, first final driven gear; 30h, second primary driven gear; 30i, fifth driven gear; 30j, sixth driven gear; 30k, seventh driven gear; 30l, second final driven gear; 31, small gear; 32, large gear; 33, first wheel; 331, step portion; 34, second wheel; 35, mounting shaft; 351, mounting hole; 36, limit stop assembly; 361, locking column; 362, elastic member; 40, connecting rod rocker arm assembly; 41, connecting rod Rod; 42, rocker arm; 421, first part; 422, second part; 43, matching part; 50, bevel gear; 60, handle shaft; 70, second driving gear; 80, mounting seat; 200, body; 201, operating handle; 300, inner shell; 400, control panel; 500, cover; 501, display window; 502, operating hole; 600, indicator; 601, closing indicator; 602, opening indicator; 603, driving part; 700, reset part; 800, power circuit board; 900, carrier circuit board; 1100, adapter board; 1101, first sub-board; 1102, second sub-board; 1103, short side board; 1104, long side board; 1120, micro switch; 1130, push plate; 1140, trip button; 1150, handle. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0057] In the description of the present invention, 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 invention 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 invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0062] See also Figure 1-Figure 3In one embodiment of the present application, a circuit breaker 1000 is provided, comprising a body 200, an electric operating mechanism 100, an inner shell 300, a control board 400 and a cover 500. The body 200 comprises an operating handle 201, and the electric operating mechanism 100, the inner shell 300 and the control board 400 are sequentially installed above the body 200 in the height direction of the circuit breaker 1000. That is, the electric operating mechanism 100 is installed on the body 200, the inner shell 300 is installed on the electric operating mechanism 100, and the control board 400 is installed on the inner shell 300. Among them, the electric operating mechanism 100 is connected to the operating handle 201, and is used to drive the operating handle 201 to close or open the switch, and the control board 400 is used to control the electric operating mechanism 100.

[0063] The cover 500 is connected to the body 200 and covers the electric operating mechanism 100, the inner shell 300 and the control board 400. That is, the cover 500 is arranged on the body 200 and forms an installation space with the body 200, and the electric operating mechanism 100, the inner shell 300 and the control board 400 are all located in the installation space.

[0064] For further information, see Figure 4 and Figure 5 The circuit breaker 1000 further includes an indicator 600, which is mounted on the inner shell 300. When the electric operating mechanism 100 drives the operating handle 201 to move to close the circuit, the electric operating mechanism 100 and / or the operating handle 201 can push the indicator 600 to move, and the indicator 600 indicates closing the circuit. When the electric operating mechanism 100 drives the operating handle 201 to move to open the circuit, the indicator 600 resets and displays opening the circuit. It can be seen that when the electric operating mechanism 100 drives the operating handle 201 to move to close the circuit, the electric operating mechanism 100 can contact the indicator 600 to push the indicator 600 to move relative to the inner shell 300, or the operating handle 201 can contact the indicator 600 to push the indicator 600 to move relative to the inner shell 300, or the electric operating mechanism 100 and the operating handle 201 both contact the indicator 600 to push the indicator 600 to move relative to the inner shell 300.

[0065] In the circuit breaker 1000 provided in the embodiment of the present application, the body 200, the electric operating mechanism 100, the inner shell 300 and the control panel 400 are arranged in sequence in the height direction of the circuit breaker 1000, the indicator 600 is installed on the inner shell 300, and the cover 500 is connected to the body 200 and is arranged outside the electric operating mechanism 100, the inner shell 300, the control panel 400 and the indicator 600. In this way, the circuit breaker 1000 and the various structures related to the electric operating mechanism 100 are assembled compactly, so that the volume of the circuit breaker 1000 is small, which meets the user's demand for miniaturization of the circuit breaker 1000. At the same time, since the circuit breaker 1000 includes the indicator 600, when the circuit breaker 1000 is closed or opened, the indicator 600 can display the closing or opening state. In this way, the user can know whether the circuit breaker 1000 is in the closing state or the opening state by observing the indicator 600, which is convenient for intuitively observing the state of the circuit breaker 1000.

[0066] In some embodiments, see Figure 6 The circuit breaker 1000 further includes a power circuit board 800 and a carrier circuit board 900. The power circuit board 800 is located between the body 200 and the inner shell 300, and the carrier circuit board 900 is installed on the body 200 and located in the installation space. The carrier circuit board 900 is electrically connected to the power circuit board 800, the electric operating mechanism 100 draws power from the carrier circuit board 900, and the control board 400 draws power from the power circuit board 800 or the carrier circuit board 900.

[0067] Optionally, the circuit breaker 1000 further includes an adapter board 1100 and a controller, and the power circuit board 800 and the controller are respectively located at both ends of the body 200. Specifically, the power circuit board 800 and the controller are respectively located at both ends of the length direction of the body 200, and the control board 400 communicates with the controller through the adapter board 1100. In this way, the controller sends a command to the control board 400 through the adapter board 1100, and the control board 400 controls the electric operating mechanism 100, and the electric operating mechanism 100 drives the operating handle 201 to move to close or open the switch.

[0068] See also Figure 7 The adapter board 1100 includes a first sub-board 1101 and a second sub-board 1102, which are sequentially arranged in the height direction of the circuit breaker 1000. The second sub-board 1102 is arranged away from the control board 400 relative to the first sub-board 1101, the controller is connected to the second sub-board 1102, and the control board 400 is connected to the first sub-board 1101. By arranging the adapter board 1100 as two sub-boards layered up and down, it is convenient for the adapter board 1100 to electrically connect the controller and the control board 400, which have a height difference in the height of the circuit breaker 1000.

[0069] Optionally, the second sub-board 1102 includes a short side board 1103 and a long side board 1104, the short side board 1103 and the long side board 1104 are connected to each other and arranged vertically, the short side board 1103 is located directly below the first sub-board 1101 and is used to be electrically connected to the first sub-board 1101, and the long side board 1104 is electrically connected to the controller. In this way, the second sub-board 1102 can realize the electrical connection between the first sub-board 1101 and the controller while occupying a small space.

[0070] It is understandable that in some other implementations, the adapter board 1100 may also be configured in other ways, as long as the configuration can achieve electrical connection between the control board 400 and the controller, and no limitation is made here.

[0071] In some embodiments, see Figure 8-Figure 10 , and see Fig.11 and Fig.12 The electric operating mechanism 100 includes a mounting seat 80, a driving member 10, a transmission assembly and a connecting rod rocker arm assembly 40. The mounting seat 80 is arranged on the body 100, and the driving member 10 is installed on the mounting seat 80. The transmission assembly is connected to the driving member 10, the connecting rod rocker arm assembly 40 is connected to the transmission assembly, and the operating handle 201 is connected to the connecting rod rocker arm assembly 40. The driving member 10 can drive the operating handle 201 to move to close or open the switch through the transmission assembly and the connecting rod rocker arm assembly 40. When the connecting rod rocker arm assembly 40 drives the operating handle 201 to move to close the switch, the connecting rod rocker arm assembly 40 can push the indicator 600 to move relative to the inner shell 300.

[0072] The above arrangement, since the electric operating mechanism 100 includes the connecting rod rocker arm assembly 40, the connecting rod rocker arm assembly 40 can amplify the swing stroke. Under the premise that the connecting rod rocker arm assembly 40 has a small size, it can meet the swing range requirement of the operating handle 201, thereby improving the structural compactness of the entire electric operating mechanism 100, that is, improving the structural compactness of the circuit breaker 1000.

[0073] The driving member 10 is a driving motor, which has high driving accuracy and is easy to control.

[0074] In some embodiments, the transmission assembly includes a first driving gear 20 and a multi-stage driven gear 30. The first driving gear 20 is connected to the driving member 10, and the driving member 10 is used to drive the first driving gear 20 to rotate around the first axis. The first-stage driven gear 30 is meshed with the first driving gear 20, and each adjacent two-stage driven gear 30 is meshed, and the connecting rod rocker arm assembly 40 is hinged with the final-stage driven gear 30. Among them, the final-stage driven gear 30 is the final-stage gear of the transmission assembly.

[0075] The first driving gear 20 can drive all the driven gears 30 to rotate around different second axes respectively. The first axis is perpendicular to all the second axes, and all the second axes are parallel to the height direction of the circuit breaker 1000 . Figure 8 Here, L1 represents the first axis, and L2 represents one of the second axes.

[0076] According to the above arrangement, when the circuit breaker 1000 receives a closing command, the driving member 10 takes power from the carrier circuit board 900 and drives the first driving gear 20 to move, the first driving gear 20 drives the first-stage driven gear 30 to move, the upper-stage driven gear 30 drives the lower-stage driven gear 30 to move, the final-stage driven gear 30 drives the connecting rod rocker arm assembly 40 to move, and then drives the operating handle 201 to move to close the circuit. When the circuit breaker 1000 receives an opening command, the driving member 10 takes power from the carrier circuit board 900 and drives the first driving gear 20 to move, the first driving gear 20 drives the first-stage driven gear 30 to move, the upper-stage driven gear 30 drives the lower-stage driven gear 30 to move, the final-stage driven gear 30 drives the connecting rod rocker arm assembly 40 to move, and then drives the operating handle 201 to move in the opposite direction to open the circuit. In this way, the electric operating mechanism 100 can remotely realize the closing or opening of the circuit breaker 1000 without the need for personnel to arrive at the site to operate the circuit breaker 1000.

[0077] In the above-mentioned electric operating mechanism 100, the cooperation between the first driving gear 20 and the first-stage driven gear 30 changes the driving direction of the driving member 10. Since the second axis is parallel (consistent) with the height direction of the circuit breaker 1000, and the second axis is perpendicular to the first axis, that is, the placement direction of the driving member 10 is perpendicular to the height direction of the circuit breaker 1000, the driving member 10 and each driven gear 30 are arranged in parallel. Compared with the method of superimposing the driving member 10 and the transmission assembly in the height direction of the circuit breaker 1000 in the prior art, the height of the circuit breaker 1000 is reduced, and the application scenario of the circuit breaker 1000 is expanded.

[0078] Continue reading Fig. 9 The first driving gear 20 and the first-stage driven gear 30 both include a bevel gear 50, and the first driving gear 20 and the first-stage driven gear 30 are meshed through the bevel gear 50. The bevel gear 50 can change the driving direction of the driving member 10, which is convenient for the driving member 10 and each driven gear 30 to be arranged in parallel to avoid stacking, and the bevel gear 50 does not occupy too much space, thereby improving the compactness of the structure of the electric operating mechanism 100.

[0079] Continue reading Fig.10, except for the last driven gear 30, the other driven gears 30 include a coaxially arranged pinion 31 and a large gear 32, and the pinion 31 of the upper driven gear 30 meshes with the large gear 32 of the lower driven gear 30. In this way, the driven gears 30 form a reduction gear set to reduce the driving speed of the driving member 10 and avoid damaging the operating handle 201 when opening and closing the switch. At the same time, since the driven gear 30 includes a coaxially arranged pinion 31 and a large gear 32, and the pinion 31 of the upper driven gear 30 meshes with the large gear 32 of the lower driven gear 30, the arrangement of the driven gear 30 is more compact, and the volume of the electric operating mechanism 100 is reduced.

[0080] See also Fig.11 , all driven gears 30 are arranged to extend along the first direction, and the extension direction of the first axis and the extension direction of the second axis are perpendicular to the first direction. The first direction is parallel to the length direction of the circuit breaker 1000. In this way, the arrangement direction of all driven gears 30 is perpendicular to the first axis, which prevents the electric operating mechanism 100 from extending too long in the extension direction of the first axis and reduces the size of the electric operating mechanism 100 in the extension direction of the first axis.

[0081] In some embodiments, see Fig. 9 and Fig.11 The driven gear 30 includes 6 driven gears 30, which are the first primary driven gear 30a, the first driven gear 30b, the second driven gear 30c, the third driven gear 30d, the fourth driven gear 30e and the first final driven gear 30f. Among them, the first final driven gear 30f is the final gear of the transmission assembly. The driving member 10 drives the first driving gear 20 to rotate around the first axis, and the first primary driven gear 30a, the first driven gear 30b, the second driven gear 30c, the third driven gear 30d, the fourth driven gear 30e and the first final driven gear 30f rotate in sequence, thereby driving the connecting rod rocker arm assembly 40 to move.

[0082] In some other embodiments, see Figure 12-14 The driven gear 30 includes five driven gears 30, namely, the second primary driven gear 30h, the fifth driven gear 30i, the sixth driven gear 30j, the seventh driven gear 30k and the second final driven gear 30l. Among them, the second final driven gear 30l is the final gear of the transmission assembly. The driving member 10 drives the first driving gear 20 to rotate around the first axis, and the second primary driven gear 30h, the fifth driven gear 30i, the sixth driven gear 30j, the seventh driven gear 30k and the second final driven gear 30l rotate in sequence, thereby driving the connecting rod rocker arm assembly 40 to move.

[0083] It is conceivable that in some other embodiments, there is no limitation on the number of driven gears 30. For example, the electric operating mechanism 100 further includes 2 driven gears 30, 3 driven gears 30, and 4 driven gears 30.

[0084] The electric operating mechanism 100 also includes a manual component, the transmission component is connected to the manual component, and the manual component can drive the operating handle 201 to close or open the circuit breaker through the transmission component and the connecting rod rocker arm component 40. In this way, the electric operating mechanism 100 can not only automatically promote closing or opening, but also manually operate the handle shaft 60 to close or open the circuit breaker 1000, thereby increasing the application scenarios of the electric operating mechanism 100.

[0085] Optionally, continue to Fig.10 and Fig.13 The manual assembly includes a handle shaft 60 and a second driving gear 70. The second driving gear 70 is coaxially mounted on the handle shaft 60, and the second driving gear 70 is meshed with the final driven gear 30. The handle shaft 60 can drive the second driving gear 70 to rotate around a third axis, and the third axis is parallel to all the second axes. The operating handle shaft 60 can drive the operating handle 201 to move through the second driving gear 70, the final and driven gears 30 and the connecting rod rocker arm assembly 40, so that the circuit breaker 1000 is closed or opened.

[0086] Continue reading Fig. 9 The final driven gear 30 includes a first wheel 33 and a second wheel 34 sleeved on the same mounting shaft 35. The first wheel 33 is meshed with the previous driven gear 30, the second wheel 34 is meshed with the second driving gear 70, and the connecting rod rocker arm assembly 40 is connected to the second wheel 34. A limit stop assembly 36 is provided between the first wheel 33 and the mounting shaft 35. When the first wheel 33 rotates forward, the limit stop assembly 36 can drive the mounting shaft 35 and the second wheel 34 to rotate forward. When the second driving gear 70 drives the second wheel 34 and the mounting shaft 35 to rotate forward, the first wheel 33 does not rotate synchronously with the second wheel 34 under the action of the limit stop assembly 36. In this way, the driving member 10 is prevented from rotating when the electric operating mechanism 100 is operated manually, thereby protecting the driving member 10.

[0087] For further information, see Fig.15 and Fig.16The position-limiting and anti-return assembly 36 includes a locking column 361 and an elastic member 362. The mounting shaft 35 is provided with a mounting hole 351 in the radial direction. The locking column 361 and the elastic member 362 are both located in the mounting hole 351, and the elastic member 362 is located between the locking column 361 and the mounting shaft 35. The first wheel 33 is provided with a step portion 331. When the first wheel 33 rotates forward, the locking column 361 can cooperate with the step portion 331, and the first wheel 33 can drive the mounting shaft 35 and the second wheel 34 to rotate. When the second wheel 34 drives the mounting shaft 35 to rotate forward, the locking column 361 does not contact the step portion 331, and the mounting shaft 35 slides relative to the first wheel 33. In this way, when the first wheel 33 rotates, it can drive the second wheel 34 to rotate, but when the second wheel 34 rotates, it cannot drive the first wheel 33 to rotate, so as to prevent the first wheel 33 from driving the driving member 10 to rotate through the upper driven gear 30 and the first driving gear 20, thereby protecting the driving member 10.

[0088] It is conceivable that the position limiting and anti-return component 36 may also be arranged in other ways, as long as it can achieve the effect of position limiting and anti-return.

[0089] The circuit breaker 1000 further includes a handle 1150, which is detachably mounted on the cover 500. The handle 1150 has a grip portion and an operating portion. The grip portion is configured to be easy for a human hand to hold, and the operating portion is used to operate the handle shaft 60. Thus, when the handle shaft 60 needs to be operated, the handle 1150 can be removed from the cover 500 to screw the handle shaft 60. When the handle shaft 60 does not need to be operated, the handle 1150 is mounted on the cover 500 to prevent the handle 1150 from being lost.

[0090] The cover 500 is provided with an operation hole 502 opposite to the manual component. The circuit breaker 1000 further includes a push plate 1130, which is movably provided on the cover 500 so as to be able to move between a first position and a second position relative to the cover 500. When the push plate 1130 is in the first position, the push plate 1130 closes the operation hole 502 to shield the manual component; when the push plate 1130 is in the second position, the push plate 1130 opens the operation hole 502 so that the manual component is exposed to the outside. In this way, when the electric operating mechanism 100 does not need to be manually operated, the push plate 1130 shields the manual component to avoid misoperation; and when the electric operating mechanism 100 needs to be manually operated, the push plate 1130 opens the operation hole 502 so that the manual component is exposed to the outside, so that the handle can pass through the operation hole 502 to operate it.

[0091] Continue reading Figure 8 ,

[0092] Optionally, the transmission assembly includes a final gear, specifically, the final driven gear 30 forms the final gear of the transmission assembly. The connecting rod rocker arm assembly 40 includes a connecting rod 41 and a rocker arm 42. The connecting rod 41 is hinged to the final gear, and the hinge point is not colinear with the rotation axis of the final gear. At this time, the second axis corresponding to the final driven gear 30 is the rotation axis. It is conceivable that in some other embodiments, the transmission assembly can also be arranged in other ways, and the rotation axis can be different depending on the different settings of the transmission assembly.

[0093] One end of the rocker arm 42 is hinged to the mounting seat 80, and the middle part is hinged to the other end of the connecting rod 41. The end of the rocker arm 42 that is not hinged to the mounting seat 80 forms a matching portion 43 that matches the operating handle 201. The driving member 10 can drive the operating handle 201 to move through the transmission assembly, the connecting rod 41 and the rocker arm 42, so that the circuit breaker 1000 is closed or opened. Since the hinge point where the connecting rod 41 is hinged to the final gear is not colinear with the rotation axis of the final gear, the connecting rod rocker arm assembly 40 can further amplify the swing stroke.

[0094] Optionally, continue to Fig.14 The rocker arm 42 includes a first part 421 and a second part 422 which are hinged to each other, the first part 421 is hinged to the mounting seat 80, the connecting rod 41 is hinged to the first part 421, and the matching portion 43 is formed on the second part 422. By setting the rocker arm 42 as two parts which are hinged to each other, the rocker arm 42 can swing more flexibly.

[0095] In some embodiments, see Fig.17 The circuit breaker 1000 further includes a trip button 1140, which is disposed on the cover 500. The trip button 1140 can be operated to trip and open the circuit breaker 1000. In this way, in an emergency, the trip button 1140 can be directly operated to trip and open the circuit breaker 1000, and the circuit breaker 1000 does not need to be opened by the electric operating mechanism 100, which is highly safe.

[0096] See also Fig.18, the circuit breaker 1000 further includes a reset member 700, which is located between the indicator 600 and the inner shell 300. When the electric operating mechanism 100 drives the operating handle 201 to move to close the switch, the electric operating mechanism 100 and / or the operating handle 201 can push the indicator 600 to move, the reset member 700 stores energy, and the indicator 600 indicates closing the switch. When the electric operating mechanism 100 drives the operating handle 201 to move to open the switch, the indicator 600 is released and reset under the action of the reset member 700, and the indicator 600 indicates opening the switch. In this way, under the action of the reset member 700, the indicator 600 can be automatically reset. Of course, in some other embodiments, the circuit breaker 1000 can also omit the reset member 700, and the indicator 600 will be reset in other ways, such as setting the indicator 600 to be always connected to the operating handle 201, and the operating handle 201 can drive the indicator 600 to move to display the closing position and the opening position.

[0097] In some embodiments, the inner shell 300 is provided with a mounting groove, and the reset member 700 is disposed in the mounting groove. When the operating handle 201 is closed, the indicator 600 can push the reset member 700 to compress and store energy. In other embodiments, the inner shell 300 and the indicator 600 are provided with hooks, and the two ends of the reset member 700 are respectively hung on the hooks of the inner shell 300 and the indicator 600. When the operating handle 201 is closed, the indicator 600 can stretch the reset member 700 to store energy. Specifically, the reset member 700 is a spring.

[0098] Further reading Fig.18 The circuit breaker 1000 further includes a micro switch 1120, which is mounted on the inner shell 300 and is located on the moving path of the indicator 600. When the operating handle 201 is closed, the indicator 600 can move to trigger the micro switch 1120, and the micro switch 1120 transmits a closing signal to the controller of the circuit breaker 1000. When the operating handle 201 is opened, the micro switch 1120 is released by the indicator 600, and the micro switch 1120 transmits an opening signal to the controller. In this way, whether the circuit breaker 1000 is closed or opened, the micro switch 1120 can obtain the signal and transmit it to the controller, so that the controller can control the circuit breaker 1000.

[0099] Continue reading Figure 5 and Fig.17, a display window 501 is provided on the cover 500 of the circuit breaker 1000, and an indicator 600 is provided with a closing indicator 601 and an opening indicator 602. When the circuit breaker 1000 is in a closed state, the closing indicator 601 is located at the display window 501 to indicate the closing state; when the circuit breaker 1000 is in an opening state, the opening indicator 602 is located at the display window 501 to indicate the opening state. Specifically, the closing indicator 601 is a red mark applied on the indicator 600, and the opening indicator 602 is a green mark applied on the indicator 600.

[0100] Further, the indicator 600 further includes a driving part 603, and the closing indicator 601 and the opening indicator 602 are both connected to the driving part 603, and the electric operating mechanism 100 and / or the operating handle 201 can push the indicator 600 to move through the driving part 603. Among them, the control panel 400 is located above the operating handle 201, and in the width direction of the circuit breaker 1000, the driving part 603 is located on one side of the operating handle 201, and the transmission assembly of the electric operating mechanism 100 is located on the other side of the operating handle 201, and the closing indicator 601 and the opening indicator 602 are both located above the control panel 400. Since the driving part 603 and the transmission assembly are respectively located on both sides of the operating handle 201, and the closing indicator 601 and the opening indicator 602 are both located above the operating handle 201, in this way, multiple structures are respectively located at different positions of the operating handle 201, so that the various structures of the circuit breaker 1000 are arranged reasonably and compactly, and the volume of the circuit breaker 1000 is reduced.

[0101] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A circuit breaker, characterized in that: include: The body (200) comprises an operating handle (201); An electric operating mechanism (100), an inner shell (300) and a control panel (400) are sequentially installed above the body (200) in the height direction of the circuit breaker; the electric operating mechanism (100) is connected to the operating handle (201) and is used to drive the operating handle (201) to close or open the switch; the control panel (400) is used to control the electric operating mechanism (100); A cover (500) connected to the body (200) and arranged outside the electric operating mechanism (100), the inner shell (300) and the control panel (400); An indicator (600) is mounted on the inner shell (300); when the electric operating mechanism (100) drives the operating handle (201) to move to close the switch, the electric operating mechanism (100) and / or the operating handle (201) can push the indicator (600) to move, and the indicator (600) indicates closing the switch; when the electric operating mechanism (100) drives the operating handle (201) to move to open the switch, the indicator (600) resets to indicate opening the switch.

2. The circuit breaker according to claim 1, characterized in that: The circuit breaker further comprises a reset member (700), wherein the reset member (700) is located between the indicator member (600) and the inner shell (300); the indicator member (600) is slidably disposed on the inner shell (300); When the electric operating mechanism (100) drives the operating handle (201) to move to close the switch, the electric operating mechanism (100) and / or the operating handle (201) can push the indicating member (600) to move, the resetting member (700) stores energy, and the indicating member (600) indicates closing the switch; when the electric operating mechanism (100) drives the operating handle (201) to move to open the switch, the indicating member (600) is released and reset under the action of the resetting member (700), and the indicating member (600) indicates opening the switch.

3. The circuit breaker according to claim 2, characterized in that: The inner shell (300) is provided with a mounting groove, the reset member (700) is arranged in the mounting groove, and when the operating handle (201) is closed, the indicator (600) can push the reset member (700) to compress and store energy; or The inner shell (300) and the indicator (600) are provided with hooks, and the two ends of the reset member (700) are respectively hung on the hooks of the inner shell (300) and the indicator (600). When the operating handle (201) is closed, the indicator (600) can stretch the reset member (700) to store energy.

4. The circuit breaker according to claim 1, characterized in that: The surface cover (500) is provided with a display window (501), the indicator (600) is slidably arranged on the inner shell (300), and the indicator (600) is provided with a closing indicator portion (601) and an opening indicator portion (602); When the circuit breaker is in a closed state, the closed indication part (601) is located at the display window (501) to display closed; when the circuit breaker is in an open state, the open indication part (602) is located at the display window (501) to display open.

5. The circuit breaker according to claim 4, characterized in that: The indicating member (600) further comprises a driving part (603), the closing indicating part (601) and the opening indicating part (602) are both connected to the driving part (603), and the electric operating mechanism (100) and / or the operating handle (201) can push the indicating member (600) to move through the driving part (603); In the width direction of the circuit breaker, the driving part (603) is located on one side of the operating handle (201), the control panel (400) is located above the operating handle (201), and the closing indication part (601) and the opening indication part (602) are both located above the control panel (400).

6. The circuit breaker according to claim 1, characterized in that: The circuit breaker further comprises a micro switch (1120), wherein the micro switch (1120) is mounted on the inner shell (300) and is located on the movable path of the indicator (600); When the operating handle (201) is closed, the indicator (600) can move to trigger the micro switch (1120), and the micro switch (1120) transmits a closing signal to the controller of the circuit breaker; when the operating handle (201) is opened, the micro switch (1120) is released by the indicator (600), and the micro switch (1120) transmits an opening signal to the controller.

7. The circuit breaker according to claim 1, characterized in that: The circuit breaker further comprises: A power circuit board (800) is located between the main body (200) and the inner shell (300); The carrier circuit board (900) is mounted on the body (200) and is electrically connected to the power circuit board (800). The electric operating mechanism (100) draws power from the carrier circuit board (900), and the control board (400) draws power from the power circuit board (800) or the carrier circuit board (900).

8. The circuit breaker according to claim 1, characterized in that: The circuit breaker further comprises an adapter board (1100) and a controller, and the control board (400) communicates with the controller via the adapter board (1100).

9. The circuit breaker according to claim 8, characterized in that The adapter plate (1100) comprises a first sub-plate (1101) and a second sub-plate (1102), wherein the first sub-plate (1101) and the second sub-plate (1102) are arranged in sequence in a height direction of the circuit breaker; The second sub-board (1102) is farther away from the control board (400) relative to the first sub-board (1101), the controller is connected to the second sub-board (1102), and the control board (400) is connected to the first sub-board (1101).

10. The circuit breaker according to claim 9, characterized in that The second sub-board (1102) includes a short side board (1103) and a long side board (1104), wherein the short side board (1103) and the long side board (1104) are interconnected and vertically arranged, and the short side board (1103) is located directly below the first sub-board (1101) and is used to be electrically connected to the first sub-board (1101), and the long side board (1104) is electrically connected to the controller.

11. The circuit breaker according to claim 1, characterized in that: The electric operating mechanism (100) comprises a mounting seat (80), a driving member (10), a transmission assembly and a connecting rod rocker arm assembly (40); the mounting seat (80) is arranged on the body (200); the driving member (10) is installed on the mounting seat (80); the transmission assembly is connected to the driving member (10); and the transmission assembly comprises a final gear; The connecting rod rocker arm assembly (40) comprises: A connecting rod (41) having one end hinged to the final gear, and a hinge point and a rotation axis of the final gear that rotates are not colinear; A rocker arm (42), one end of which is hinged to the mounting seat (80), and a middle portion of which is hinged to the other end of the connecting rod (41); the end of the rocker arm (42) not hinged to the mounting seat (80) forms a mating portion (43) mating with the operating handle (201); the driving member (10) can drive the operating handle (201) to move through the transmission assembly and the connecting rod rocker arm assembly (40), so that the circuit breaker is closed or opened; When the connecting rod rocker arm assembly (40) drives the operating handle (201) to move and close the switch, the connecting rod rocker arm assembly (40) and / or the operating handle (201) can push the indicator (600) to move relative to the inner shell (300).

12. The circuit breaker according to claim 11, characterized in that The electric operating mechanism (100) further comprises a manual component, the transmission component is connected to the manual component, and the manual component can drive the operating handle (201) to move to close or open the switch through the transmission component and the connecting rod rocker arm component (40); The circuit breaker further comprises a handle (1150), the handle (1150) being detachably mounted on a side of the cover (500) close to the indicator (600), the handle (1150) comprising a gripping portion and an operating portion, the gripping portion being configured to be convenient for human hand gripping, and the operating portion being used to operate the manual assembly; The cover (500) is provided with an operating hole (502) opposite to the manual assembly; the circuit breaker further comprises a push plate (1130), the push plate (1130) being movably provided on the cover (500) so as to be able to move between a first position and a second position relative to the cover (500); When the push plate (1130) is in the first position, the push plate (1130) closes the operating hole (502) to shield the manual component; when the push plate (1130) is in the second position, the push plate (1130) opens the operating hole (502) to expose the manual component to the outside.

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