CN115910712B

CN115910712B - Circuit breaker

Info

Publication number: CN115910712B
Application number: CN202211609066.1A
Authority: CN
Inventors: 罗志君; 卢科军; 周长青; 付浩
Original assignee: Shanghai Chint Intelligent Technology Co Ltd
Current assignee: Shanghai Chint Intelligent Technology Co Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-12-26
Anticipated expiration: 2042-12-14
Also published as: CN115910712A

Abstract

The embodiment of the invention discloses a circuit breaker, which comprises a base, a fixed contact, a moving contact, an operating mechanism, a switching-on and switching-off assembly and a driving piece. The switching-on and switching-off assembly comprises a switching-on button, a switching-off button and a rotating shaft, wherein the switching-on button is provided with a head part for manual pressing by a user, and the switching-off button is provided with a head part for manual pressing by the user. The operating mechanism is connected with the rotating shaft and can control the movable contact to contact or be far away from the fixed contact. The driving piece comprises an electromagnetic driving piece and a transmission assembly, the transmission assembly comprises a linkage piece and a movable piece, and the movable piece is rotatably connected with the electromagnetic driving piece through the linkage piece and is provided with a first movable position and a second movable position. The movable piece can be driven to press the closing button when in a first movable position; the movable piece can be driven to press the brake release button in the second movable position. The circuit breaker can realize the switching on/off switching of the double-button circuit breaker through the single transmission mechanism, and simultaneously can also manually switch on/off, and has the advantages of simple structure, low assembly precision requirement and low cost.

Description

Circuit breaker

Technical Field

The invention relates to the technical field of piezoelectric devices, in particular to a circuit breaker.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a plug-in circuit breaker, a fixed circuit breaker and a drawer circuit breaker according to the installation mode, and the use of the plug-in circuit breaker can effectively improve the safety of the use industry of electrical equipment, so that the plug-in circuit breaker is widely applied in the industries such as communication and the like.

The circuit breaker is generally provided with a switching-on and switching-off assembly for realizing switching-on and switching-off of the circuit breaker, the common switching-on and switching-off assembly is provided with a single button and a double button, the single button circuit breaker can drive the single button to realize switching-on and switching-off of the circuit breaker in a reciprocating manner, however, a user can not clearly distinguish the switching-on and switching-off states of the circuit breaker when observing the position of the single button. The double-button circuit breaker can judge the on-off state of the circuit breaker by checking the positions of different buttons, but more than two transmission mechanisms are often needed to respectively control the two buttons, and the double-button circuit breaker can only have one on-off mode and has the defects of complex mechanism, large occupied space, high cost, incapability of considering various on-off modes and the like.

Disclosure of Invention

The main object of the present invention is to propose a circuit breaker, which aims to solve the above problems existing in the prior art.

In order to achieve the above object, the present invention provides a circuit breaker, characterized in that: comprising the following steps:

a base;

the fixed contact is fixedly arranged in the base;

the movable contact is movably arranged in the base;

the operating mechanism is connected with the moving contact and can drive the moving contact to contact or be far away from the fixed contact so as to finish closing or opening;

The switching-on and switching-off assembly is movably arranged in the base, is connected with the operating mechanism and is used for driving the operating mechanism to realize switching-on and switching-off of the circuit breaker;

the driving piece is arranged in the base, a driving part is arranged on one side, close to the switching-on and switching-off assembly, of the driving piece, the switching-on and switching-off assembly is provided with an abutting part, and the driving part is matched with the abutting part to drive the switching-on and switching-off assembly to move in the base.

In some embodiments, the switching-on/off assembly comprises a switching-on button, a switching-off button and a rotating shaft;

the abutting part comprises a first abutting surface on the closing button and a second abutting surface on the opening button;

the switching-on button is further provided with a switching-on button head, and the switching-on button head is used for manually pressing the switching-on button along a first direction;

the brake release button is further provided with a brake release button head, and the brake release button head is used for manually pressing the brake release button along the first direction;

the switching-on button and the switching-off button are connected with the operating mechanism through the rotating shaft to drive the operating mechanism to switch on and off.

In some embodiments, the driver comprises:

The electromagnetic driving piece is arranged in the base;

the transmission assembly is movably connected with the electromagnetic driving piece, and the electromagnetic driving piece drives the transmission assembly to drive the closing button or the opening button to move in the base; the electromagnetic driving piece can drive the transmission assembly to contact and move the closing button; the transmission component is matched with the second abutting surface when in the second movable position, and the electromagnetic driving piece can drive the transmission component to contact and move the brake separating button.

In some embodiments, the transmission assembly includes a linkage and a moveable member;

one end of the linkage piece is rotatably connected to the electromagnetic driving piece, and the electromagnetic driving piece drives the linkage piece to rotate;

the movable piece is rotatably connected with the other end of the linkage piece and comprises a first movable position and a second movable position;

the movable piece is matched with the first abutting surface when in the first movable position, and drives the closing button to move along a first direction so as to realize closing; the movable piece is matched with the second abutting surface when in the second movable position, and drives the brake separating button to move along the first direction so as to realize brake separating.

In some embodiments, the closing button further has a blocking section thereon between the closing button head and the first abutment surface; the blocking section can interfere with the movable piece when the closing button is pressed down so that the movable piece is positioned at a second movable position; the blocking section avoids the movable piece when the closing button pops up, so that the movable piece is located at a first movable position.

In some embodiments, the switch-on button comprises a switch-on button first section, a switch-on button second section and a switch-on button third section which are sequentially connected;

the switching-on button section and the switching-off button are arranged on the same side of the moving plane of the movable piece side by side; the head part of the closing button is one unconnected end of the closing button; the blocking section is arranged on one side, close to the movable piece, of one section of the closing button;

the second section of the closing button extends from the other end of the first section of the closing button to the moving plane of the movable part, and the first abutting surface is positioned on the second section of the closing button;

and the three sections of the closing button are parallel to one section of the closing button.

In some embodiments, the transmission assembly further includes a first resilient member disposed between the linkage member and the movable member, the first resilient member tending to rotate the movable member to the first movable position when in the second movable position;

The electromagnetic driving part is internally provided with a reset part, so that the movable part can be reset to the second movable position after the closing button is pressed, and the movable part can be reset to the first movable position after the opening button is pressed.

In some embodiments, the path of movement of the moveable member in the first active position is a first active path; the moving path of the movable piece at the second movable position is a second movable path;

the switching-on and switching-off assembly further comprises a limiting piece arranged between the first movable path and the second movable path;

the movable piece is provided with a movable piece boss extending out of the moving plane;

the movable piece boss can be abutted against the limiting piece in the process that the movable piece moves along the second movable path and is contacted with the second abutting surface.

In some embodiments, the opening and closing assembly further includes a fourth elastic member connected to the limiting member, so that the limiting member maintains a tendency to rotate toward the first moving path.

In some embodiments, the brake release button is provided with an abutment extending to the moving plane of the movable member, the second abutment surface is located on the abutment, and a portion of the abutment facing the limiting member is recessed to form a third stop surface to accommodate the limiting member and limit the rotation range of the limiting member.

In some embodiments, the on-off assembly further comprises a middle spacer, a fifth elastic member;

the base is provided with a bulge;

the middle partition piece is provided with a bottom hole which is matched with the protruding shaft hole of the base;

the rotating shaft is provided with a rotating shaft hole which is matched with the protruding shaft hole of the base;

the middle partition piece, the fifth elastic piece and the rotating shaft are sleeved on the base in sequence through the base bulge;

the fifth elastic piece enables the rotating shaft to have a trend of driving the operating mechanism to open.

In some embodiments, the on-off assembly further comprises a first link, a second link, a third link;

the first connecting rod is connected with the closing button and the rotating shaft;

the second connecting rod is connected with the brake separating button and the rotating shaft;

the third connecting rod is connected with the rotating shaft and the operating mechanism.

In some embodiments, the switch-on button has a first guide portion, the switch-off button has a second guide portion, and the first guide portion and the second guide portion form a receiving space.

In some embodiments, the circuit breaker further comprises a locking assembly comprising a head spacer and a locking member;

The side wall of the head partition is provided with a notch;

the locking piece is rotatably arranged in the head partition piece, one surface of the locking piece is provided with a second boss, and the second boss is arranged in the accommodating space and comprises a first accommodating position and a second accommodating position;

the second boss is positioned at the first accommodating position during closing so that the locking piece extends out of the notch; the second boss is located at a second accommodating position when the brake is separated, so that the locking piece is retracted from the notch.

In some embodiments, the locking assembly further comprises an operating member and a stop;

the operating piece is rotatably arranged in the head partition and comprises a holding part extending out of the head partition and an operating piece end part in the partition, and the holding part is used for controlling the operating piece to rotate between a first operating position and a second operating position;

the stop member is movably arranged in the head partition member and can extend or retract from the notch so as to fix or unfixed the circuit breaker; the operating member end is capable of retracting the stop member when in the second operating position.

In some embodiments, the other side of the locking element facing away from the second boss has a first boss; when the second boss is positioned at a first accommodating position, the first boss can be in abutting fit with the end part of the operating piece so as to limit the operating piece to the first operating position; when the second boss is located at the second accommodating position, the first boss can avoid the end part of the operating piece so that the operating piece can rotate to the second operating position.

In some embodiments, the closing button has a stepped surface capable of supporting the stop when the stop is retracted.

The breaker can realize the opening and closing of the breaker by automatically and/or manually pressing the button. The circuit breaker includes closing button and separating brake button, and both buttons have the head that is used for manual pressing and are used for the butt face of automatic pressing. The circuit breaker also has drive assembly and electromagnetic drive piece, and drive assembly connects on the electromagnetic drive piece, utilizes the movable part in the drive assembly can be with the sharp actuating force of electromagnetic drive piece selectively transmission to different buttons. The circuit breaker can realize the switching-on and switching-off state switching of the circuit breaker with double buttons through the single transmission mechanism, and simultaneously can also manually switch on and off, and has the advantages of simple structure, low assembly precision requirement and low cost.

The breaker comprises the operating piece, the locking piece and the stopping piece, wherein the head part of the locking piece extends out of the breaker when the breaker is closed, the operating piece cannot rotate to retract the stopping piece, the head part of the locking piece is retracted into the breaker when the breaker is opened, and the stopping piece can be retracted after the operating piece rotates, so that the breaker can be prevented from being misplaced and pulled out when the breaker is closed, the breaker can be installed into a case only when the breaker is opened, and the electricity safety is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

The methods, systems, and/or programs in the accompanying drawings will be described further in terms of exemplary embodiments. These exemplary embodiments will be described in detail with reference to the drawings. These exemplary embodiments are non-limiting exemplary embodiments, wherein reference numerals represent similar mechanisms throughout the several views of the drawings.

Fig. 1 is a circuit breaker opening state diagram according to some embodiments of the present application;

fig. 2 is a circuit breaker closing state diagram according to some embodiments of the present application;

FIG. 3 is a block diagram of an electromagnetic drive according to some embodiments of the present application;

FIG. 4 is a block diagram of a transmission assembly according to some embodiments of the present application;

FIG. 5 is a block diagram of an electromagnetic drive and transmission assembly according to some embodiments of the present application;

FIG. 6 is a block diagram of a head spacer according to some embodiments of the present application;

FIG. 7 is a block diagram of an operator according to some embodiments of the present application;

FIG. 8 is a block diagram of a locking element according to some embodiments of the present application;

FIG. 9 is a block diagram of a stop member according to some embodiments of the present application;

FIG. 10 is an assembled block diagram of a locking assembly according to some embodiments of the present application;

FIG. 11 is a diagram showing the positional relationship of the locking assembly when the locking member is in the first locking position according to some embodiments of the present application;

FIG. 12 is a diagram showing the positional relationship of the locking assembly when the locking member is in the second locking position in some embodiments of the present application;

fig. 13 is a block diagram of a closing button according to some embodiments of the present application;

FIG. 14 is a block diagram of a brake release button according to some embodiments of the present application;

FIG. 15 is an enlarged view of the retainer mounting portion of the trip button of FIG. 14;

FIG. 16 is a block diagram of a stop member according to some embodiments of the present application;

FIG. 17 is a diagram of a middle spacer structure according to some embodiments of the present application;

FIG. 18 is a diagram of a rotating shaft according to some embodiments of the present application;

fig. 19 is a diagram showing connection relationships between parts of a circuit breaker according to some embodiments of the present application in an initial breaking state;

Fig. 20 is a diagram showing connection relationships between parts of a circuit breaker according to some embodiments of the present application in a closed state;

fig. 21 is a diagram showing a connection relationship between parts of a circuit breaker at a certain point in the automatic closing process according to some embodiments of the present application;

fig. 22 is a diagram showing a connection relationship between parts of a circuit breaker at another time during an automatic closing process according to some embodiments of the present application;

fig. 23 is a diagram showing a connection relationship between parts of a circuit breaker at a certain point in the automatic breaking process according to some embodiments of the present application;

fig. 24 is a diagram showing a connection relationship between parts of a circuit breaker at another point in time during an automatic breaking process according to some embodiments of the present application;

FIG. 25 is a block diagram of an operator according to some embodiments of the present application;

FIG. 26 is a block diagram of a locking element according to some embodiments of the present application;

FIG. 27 is a block diagram of a closing button in accordance with some embodiments of the present application;

FIG. 28 is a diagram showing the positional relationship of the locking assembly when the locking member is in the second locking position in some embodiments of the present application;

FIG. 29 is a diagram showing the positional relationship of the locking assembly when the locking member is in the first locking position in some embodiments of the present application;

FIG. 30 is a block diagram of a stop member according to some embodiments of the present application;

FIG. 31 is a block diagram of a baffle according to some embodiments of the present application;

FIG. 32 is a diagram of a cover structure according to some embodiments of the present application;

FIG. 33 is a block diagram of a retainer mounted to a cover in some embodiments of the present application;

fig. 34 is a diagram showing a connection relationship between parts of a circuit breaker according to some embodiments of the present application in an initial breaking state;

fig. 35 is a connection diagram of a part of components when a circuit breaker according to some embodiments of the present application is in a closed state;

fig. 36 is a diagram showing a connection relationship between parts of a circuit breaker at a certain point in the automatic closing process according to some embodiments of the present application;

fig. 37 is a diagram showing a connection relationship between parts of a circuit breaker at another time during an automatic closing process according to some embodiments of the present application;

fig. 38 is a diagram showing a connection relationship between parts of a circuit breaker at a certain point in the automatic breaking process according to some embodiments of the present application;

fig. 39 is a diagram showing a connection relationship between parts of a circuit breaker at another point in time during an automatic breaking process according to some embodiments of the present application.

Icon: 1-an electromagnetic drive; 2-a transmission assembly; a 3-lock assembly; 4-a switching-on and switching-off assembly; 5-a base; 6-an operating mechanism; 11-a movable iron core; 111-moving core end caps; 12-a rubber gasket; 13-an iron core spring; 14-a baffle; 15-a magnetic yoke; 151-semi-circular grooves; 152-a fixed slot; 16-skeleton; 17-winding; 18-static iron core; 21-linkage; 211-a linkage body; 212-a linkage shaft; 213-linkage groove; 214-perforating; 22-pins; 23-a first elastic member; 24-moving part; 241-a moveable member groove; 242-moving part boss; 243—working surface; 31-an operating member; 31' -an operating member; 311-a grip; 312-boom guide slots; 312' -boom guide slots; 313-operator end; 314-a swivel arm groove; 315-fitting groove; 32-head spacers; 321-a closing button channel; 322-a break-off button channel; 323-channel; 324-positioning a shaft; 325-separating surface; 326-notch; 327-a limit groove; 328-stop wall; 33-a second elastic member; 34-locking member; 34' -locking member; 341-a lock body; 342-locking holes; 343-a first boss; 3431' -first land groove; 344-a second boss; 3441-first end; 3442-second end; 345-locking member head; 35-stop; 351-stopper head; 352-mating part; 353-a limiting shaft; 354-a stopper body; 36-a third elastic member; 41-closing button; 41' -closing button; 4110-closing button head; 4111-section of closing button; 4112-second section of closing button; 4113-three sections of closing buttons; 412-a first guide; 412' -a first guide; 4121-a first guide section; 4121' -a first guide segment; 4122-a second guide segment; 413-step surfaces; 414-a blocking section; 415-a first abutment surface; 416-first link hole; 417-guide bosses; 418—a first stop surface; 419-a second stop surface; 42-opening button; 4210-off button head; 4211-torsion spring arm slots; 4212-a first scallop groove; 4213-a second scallop groove; 4214—a third stop surface; 4215-a support surface; 422-a second guide; 4221-a third pilot segment; 4222-fourth guide segment; 4223-a fifth guide section; 424-a second abutment surface; 425-via slots; 426-through holes; 427-abutment; 428-a position supplementing table; 429-a second connecting rod hole; 43-limiting piece; 431-first bump; 432-a first limiting surface; 433-a second protrusion; 434-an abutment surface; 435-pivot; 436-a second limiting surface; 44-fourth elastic member; 45-connecting rod; 451-a first link; 452-a second link; 453-third link; 46-rotating shaft; 461-third link hole; 462-fourth link aperture; 463-fifth link aperture; 464-a first circumferential wall; 465-a second circumferential wall; 466-a spindle bore; 467—a spindle bottom surface; 47-a fifth elastic member; 48-an intermediate spacer; 481-bottom hole; 482-a support table; 483—support table side; 484-stop table; 61-a moving contact; 62-a stationary contact; a is a limiting piece; a1-a first mounting shaft; a2-a first surface; a3-a second limiting surface; a4-a first limiting surface; a5-a limiting guide groove; a6-a second mounting shaft; a7-a limiting arm groove; a8-a second surface; b-baffle; b1-a first baffle mounting hole; b2-a second baffle mounting hole; b3-baffle limiting holes; b4-a baffle plate joint surface; c-a cover; c1-a cover mounting surface; c2-a cover limiting hole; c3-a cover arm groove; c4-a first cover mounting shaft; c5-a second cover mounting shaft; d-fourth elastic member.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship that a product of the application conventionally puts in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Example 1

As shown in fig. 1 and 2, the circuit breaker according to some embodiments of the present application is a plug-in circuit breaker, and includes an electromagnetic driving member 1, a transmission assembly 2, a locking assembly 3, a switching-on/off assembly 4, an operating mechanism 6, a moving contact 61, a fixed contact 62, and a base 5 for accommodating each component, and the circuit breaker is installed in a chassis. The transmission assembly 2 moves under the drive of the electromagnetic driving piece 1 and acts on the switching-on and switching-off assembly 4, and the switching-on and switching-off assembly 4, the operating mechanism 6 and the moving contact 61 are sequentially connected, so that the switching-on and switching-off assembly 4 drives the operating mechanism 6 to enable the moving contact 61 to be contacted with the fixed contact 62 (shown in figure 2) or separated from the fixed contact 62 (shown in figure 1), and switching-on or switching-off of the circuit breaker is realized.

For convenience of explanation of the circuit breaker shown in fig. 1 and 2, a space rectangular coordinate system is now established, in which the left-right direction in the drawing, i.e., the length direction of the circuit breaker, is taken as the X-axis, the right direction is taken as the positive X-axis direction (first direction), the up-down direction in the drawing, i.e., the width direction of the circuit breaker, is taken as the Y-axis, the upward direction is taken as the positive Y-axis direction (second direction), and the outward direction perpendicular to the paper surface is taken as the positive Z-axis direction (third direction). The following figures and description follow the coordinate system, and fig. 3, 5, 10, 11 (b), 12 (b), 19-22, 28, 29, 34-39 are all XY plane views. It should be noted that the directions including up, down, left, right, front, back, etc. for explaining the structure and operation of the circuit breaker of the embodiment of the present application are not absolute methods, but relative directions, which may correctly correspond to the structural posture shown in the drawings, but when the structural posture is changed, these directions need to be interpreted correspondingly to be changed to accommodate such structural posture change.

[ electromagnetic drive ]

As shown in fig. 1 and 2, the electromagnetic driving member 1 is disposed in the base 5, and as shown in fig. 20 and 21, the electromagnetic driving member 1 can be driven and reset along a straight line. As shown in fig. 3, the electromagnetic driver 1 includes a movable iron core 11, a rubber washer 12, an iron core spring 13, a shutter 14, a yoke 15, a bobbin 16, a winding 17, and a stationary iron core 18. The baffle 14 is located at one end of the yoke 15 and encloses an inner space with the yoke 15, and the frame 16 is disposed in the inner space. The middle part of the baffle 14 is provided with a hole, one end of the magnetic yoke 15 far away from the baffle 14 is provided with an opening, the framework 16 is of a hollow structure with openings at two ends, and the outer surface of the framework 16 is sleeved with a winding 17. The movable iron core 11 extends out of an inner space enclosed by the baffle 14 and the magnetic yoke 15 from the inside of the framework 16 through an opening at one end of the framework 16 and the hole direction of the baffle 14, and the movable iron core 11 can move in the direction; the stationary core 18 is fixed by extending from the inside of the frame 16 through the opening at the other end of the frame 16 and the opening direction of the yoke 15 at the end far from the baffle 14. The magnet yoke 15 is provided with a fixing groove 152 for embedding two sides of the baffle 14, and the magnet yoke 15 is further provided with a semicircular groove 151 outside the fixing groove 152. On the one hand, the baffle 14 and the magnet yoke 15 cooperate to fix the skeleton 16 at a relative position inside the magnet yoke 15, and on the other hand, the baffle 14 helps the overall magnetic circuit to be closed loop, increasing electromagnetic force. The iron core spring 13 is sleeved on the movable iron core 11 and penetrates through the hole of the baffle plate 14, and one side of the iron core spring 13 is leaned against the opening surface of the framework 16. The movable iron core 11 is provided with a movable iron core end cap 111 at one end far away from the framework 16, the movable iron core 11 is also sleeved with a rubber gasket 12, the rubber gasket 12 is limited between the movable iron core end cap 111 and the iron core spring 13, and the movable iron core end cap 111 can prevent the rubber gasket 12 from falling out.

[ Transmission Assembly ]

As shown in fig. 4, the transmission assembly 2 includes a linkage 21, a pin 22, a first elastic member 23, and a movable member 24. One end of the linkage member 21 is rotatably connected to the electromagnetic driving member 1: the linkage member 21 includes a linkage member body 211, one end of the linkage member body 211 is connected with a linkage shaft 212, and the linkage shaft 212 is assembled in the semicircular groove 151 of the electromagnetic driving member and can enable the linkage member 21 to freely rotate around the axis of the linkage shaft 212. The linkage body 211 is provided with a through hole 214, and the through hole 214 allows the movable iron core 11 to pass through and drive the linkage 21 to rotate along the first time needle direction (clockwise rotation from C to D in fig. 5). The middle part of the other end of the linkage member body 211 is provided with a linkage member groove 213, and two sides of the linkage member groove 213 are provided with lugs. One end of the movable member 24 has a movable member groove 241, and both sides of the movable member groove 241 have ears. The pin 22 is used to connect the other end of the link 21 with the movable member 24, which is substantially parallel to the link shaft 212 and passes through the ear of the link 21 and the ear of the movable member 24, so that the movable member 24 is rotatably connected to the other end of the link 21, as shown in fig. 5, and the rotation plane of the movable member 24 is the same plane as the rotation plane of the link 21, i.e., the plane shown in fig. 5. The end of the movable member 24 away from the linkage member 21 is provided with a bending portion, and the bending portion bends towards the first time needle direction, so that the movable member 24 is in a hook shape in a rotation plane, as shown in fig. 4, the tail end of the bending portion is provided with a working surface 243 and a movable member boss 242 extending along a direction perpendicular to the rotation plane, and the extending direction of the movable member boss 242 (not shown in fig. 5) is perpendicular to the plane in fig. 5 and points into the paper (i.e. the opposite direction of the third direction). As shown in fig. 4, the first elastic member 23 is a torsion spring, and is sleeved on the pin 22, one rotating arm of the first elastic member 23 is attached in the linkage member groove 213 of the linkage member 21, and the other rotating arm is attached in the movable member groove 241 of the movable member 24, so that the movable member 24 keeps a tendency to rotate around the other end of the linkage member 21 in a second clockwise direction opposite to the first time needle (counterclockwise rotation from D to C in fig. 5), that is, the movable member 24 keeps a tendency to open. The movable member 24 may be displaced by the rotation of the linkage member 21, or may be repositionably rotated about the other end of the linkage member 21, that is, the movable member 24 may be repositionably rotated about the joint.

As shown in fig. 5, the electromagnetic driving member 1 and the transmission assembly 2 are assembled as a unit, i.e., a driving mechanism, and the link member 21 is driven by the electromagnetic driving member 1 to rotate from the link stop position to the link actuation position. The plunger 11 passes through the through hole 214 of the linkage 21, one side of the plunger spring 13 is abutted against the opening surface of the frame 16, and the other side of the plunger spring 13 is abutted against the linkage 21 and does not pass over the linkage 21. The rubber gasket 12 is limited between the movable iron core end cap 111 and the linkage piece 21, so that damage caused by direct contact between the movable iron core 11 and the linkage piece 21 is avoided, and the damping effect is achieved. As shown in fig. 1 and 2, after the electromagnetic drive assembly is fixed inside the circuit breaker, the housing (not labeled in fig. 1 and 2) of the head spacer 32 restricts the movable iron core 11 to the left-hand limit position in the drawing, i.e., the drive stop position; as shown in fig. 21, the linkage 21 then restricts the right-hand limit position of the plunger 11 in the drawing, i.e., the drive actuation position, by restricting the plunger end cap 111.

As shown in fig. 1, 2 and 5, when the winding 17 is energized and the electromagnetic driver 1 is started, the plunger 11 is retracted rightward (from a to B) from the drive stop position to the drive actuation position by the electromagnetic force; during the retraction process of the movable iron core 11, the movable iron core end cap 111 drives the rubber gasket 12 to act on the linkage piece 21, so that the linkage piece 21 rotates from a linkage stop position to a linkage actuation position in a direction close to the magnetic yoke 15 under the drive of the electromagnetic driving piece 1, namely, rotates from the linkage stop position to the linkage actuation position along a first time needle direction (clockwise rotation from C to D in fig. 5), and under the drive of the linkage piece 21, the movable piece 24 presses the closing button 41 or the opening button 42 of the closing and opening assembly 4 in the action process, so that the closing or opening of the circuit breaker is realized. When the winding 17 is powered off and the electromagnetic driving member 1 stops, the iron core spring 13 provides a resilience force for the linkage member 21, and the linkage member 21 rotates from the linkage actuating position to the linkage stopping position in a direction away from the magnetic yoke under the action of the iron core spring 13, namely, rotates from the linkage actuating position to the linkage stopping position in a second clockwise direction opposite to the first time needle (anticlockwise rotation from D to C in fig. 5), and the movable member 24 is reset under the drive of the linkage member 21; at the same time, the link 21 acts on the plunger 11 through the rubber washer 12, thereby driving the plunger 11 to return to the drive stop position as well.

In this embodiment, one end of the linkage member 21 is rotatably connected to the electromagnetic driving member 1, but it should be noted that, as a feasible manner that the movable member 24 is movably connected to the electromagnetic driving member 1, the rotatable end of the linkage member 21 may also be connected to other components and/or positions in the circuit breaker, so long as it is satisfied that the linkage member 21 can rotate around one end between the linkage stop position and the linkage actuating position under the driving of the electromagnetic driving member 1, and drives the movable member 24 to implement the closing or opening of the circuit breaker.

[ Lock Assembly ]

The locking assembly 3 includes an operating member 31, a head spacer 32, a second elastic member 33, a locking member 34, a stopper 35, and a third elastic member 36.

As shown in fig. 1, 2, 11 (a) and 12 (a), the head spacer 32 is provided at one end inside the base 5. As shown in fig. 6, head spacer 32 is divided by a dividing surface 325 into a first layer in the paper and a second layer out of the paper. The side of the first layer of the head partition 32 has a break button channel 322 and a close button channel 321, and the break button channel 322 and the close button channel 321 are respectively penetrated by a break button 5 button head 4210 and a close button head 4110. The second layer of head spacer 32 has a positioning shaft 324 on a separating surface 325. The positioning shaft 324 is engaged by the shaft hole such that the operating member 31 and the locking member 34 are rotatable about the positioning shaft 324. The partition 325 cooperates with a wall perpendicular to the partition 325 to define a semi-enclosed channel 323 for the grip portion 311 of the operating member 31 to rest and allow the grip portion 311 to rest in

Rotated about the positioning axis 324 over a range of angles, specifically, a stop wall 328 defining 0 of the walls of the passageway 323. The second layer of the head spacer 32 also has a limiting groove 327 therein, and a notch 326 is provided in a side wall of the second layer opposite the limiting groove 327.

As shown in fig. 7, the operating member 31 is in the form of a handle, and includes a fitting groove 315, a grip portion 311 located at one side of the fitting groove 315, and an operating member end portion 313 located at the other side of the fitting groove 315. The assembly groove 315 has a swivel arm guide groove 312 and a swivel arm groove 314 with a certain width on the side wall. As shown in fig. 10 to 12, when the operating member 31 is engaged with the head spacer 32, the fitting groove 315 of the operating member 31 is fitted on the positioning shaft 324 of the head spacer 32 so that the operating member 31 can rotate about the positioning shaft 324. The gripping portion 311 of the operating member 31 extends from the channel 323 out of the head spacer 32 and the base 5 for rotation by a user from outside the circuit breaker and/or pulling of the operating member 31. The second elastic member is also provided in the fitting groove 315 of the operation member 31

The member 33, the second elastic member 33 is a torsion spring, one rotating arm of the second elastic member 33 is fixed in a rotating arm groove 314 on the operating member 310, and the other rotating arm is extended out through the rotating arm groove 312 and then abuts against a stop wall 328 of the head spacer 32, so that the operating member 31 has a tendency to rotate in the second clockwise direction (counterclockwise direction) to return to the first operating position. The face of the stop wall 328 defining the passage 323 and the face against which the other arm of the second elastic member 33 abuts are different faces, in particular, define the passage 323

The surface is the length surface of the stop wall 328, the length surface is the surface of the stop wall 328 along the length direction and perpendicular to the 5-division-surface 325, the surface of the stop wall 328, which the other rotating arm of the second elastic member 33 abuts against, is the thickness surface of the stop wall 328, and the thickness surface is the surface of the stop wall 328 along the thickness direction and perpendicular to the 5-division-surface 325. The second elastic member 33 keeps the operating member 31 in the plane shown in fig. 10-12 in a tendency to rotate about the positioning shaft 324 in the second clockwise direction (counterclockwise direction), that is, the operating member 31 is initially not operated and is located at the first operating position, and can be rotated by the user in the first time needle direction (clockwise direction) to the second operating position, and after the user releases the operating member 31, the second elastic member 33 can rotate and reset the operating member 31 counterclockwise to the first operating position, and it can be understood that the operating member 31 is reset to the first operating position and abuts against the length surface of the stop wall 328.

Fig. 8 (a) and 8 (b) show different views of the locking member 34, it can be seen that the locking member 34 includes a locking member body 341, a first boss 343 disposed on one side of the locking member body 341, a second boss 344 disposed on the other side of the locking member body 341 away from the first boss 343, a locking hole 342 formed at one end of the locking member body 341, the locking hole 342 communicating one side of the first boss 343 with the other side of the second boss 344, and a locking member head 345 extending laterally from one end of the locking member body 341 away from the locking hole 342 and located between the first boss 343 and the second boss 344. As shown in fig. 10-12, when the locking member 34 and the head spacer 32 are mated, a locking hole 342 (not shown in fig. 10-12) of the locking member 34 is fit over the positioning shaft 324 of the head spacer 32 so that the locking member 34 can rotate about the positioning shaft 324. The locking member 34 has a first locking position and a second locking position in the circuit breaker, as shown in fig. 11 (a), when the circuit breaker is closed, the locking member 34 is rotated to the bottom in a second clockwise direction (counterclockwise direction) around the positioning shaft 324, and the locking member head 345 protrudes out of the circuit breaker through the notch 326; as shown in fig. 12 (a), when the circuit breaker is opened, the locking member 34 is rotated about the positioning shaft 324 in the first time pin direction (clockwise) to the bottom in the second locking position, and the locking member head 345 is retracted into the circuit breaker.

A stop 35 is movably disposed within the head spacer 32 and can extend or retract from the notch 326 to secure or unsecure the circuit breaker. As shown in fig. 9, the stopper 35 includes a stopper body 354, a stopper shaft 353 provided at one side of the stopper body 354, a stopper head 351 provided at the other side of the stopper body 354 opposite to the stopper shaft 353, and a fitting portion 352 provided at the side of the stopper body 354.

As shown in fig. 10, the third elastic member 36 is a spring, the third elastic member 36 is sleeved on the limiting shaft 353 of the stopper 35, and the limiting shaft 353 and the third elastic member 36 are assembled in the limiting groove 327 of the head spacer 32 together. The stopper 35 at least partially extends out of the circuit breaker without being driven by the operating member 31, specifically, the stopper head 351 may extend out of the circuit breaker through the notch 326 under the pushing of the third elastic member 36 and form a locking limit with the chassis in which the circuit breaker is located, so as to prevent the circuit breaker from sliding out of the chassis.

As shown in fig. 11 (a), when the locking member 34 is located at the first locking position, the operating member 31 is located at the first operating position, and the locking member 34 restricts the rotation angle of the operating member 31 so that the stopper 35 cannot be fully retracted into the circuit breaker. Specifically, during clockwise rotation of the operating member 31 by the user, the first boss 343 of the locking member 34 abuts against the end 313 of the operating member to limit rotation of the operating member 31 to the second operating position, so that the user cannot rotate the operating member 31 clockwise or can only rotate the operating member 31 by a small angle, the operating member 31 is limited to the first operating position, the stopper head 351 cannot retract into the circuit breaker, and thus the user is prompted that the circuit breaker is in the closed state at this time, and the operating member 31 cannot be pulled to take out the circuit breaker from the mounting position in the chassis.

As shown in fig. 12 (a), when the locking member 34 is in the second locking position, the first boss 343 no longer limits the operating member 31 from pressing against the stop member 35 (the stop member 35 is omitted for clarity of illustration of the locking member 34 in fig. 12 (a)), and in combination with the stop member 35 in fig. 10, it will be appreciated that the first boss 343 is now capable of retracting the operating member end 313, and the operating member 31 can be operated by a user to rotate from the first operating position to the second operating position and bring the stop member 35 into full retraction within the circuit breaker. Specifically, the user rotates the operating member 31 clockwise by a large angle to the second operating position, the operating member end 313 can press the engaging portion 352 of the stopper 35 and compress the third elastic member 36 during rotation, such that the stopper head 351 withdraws the circuit breaker from the exterior of the circuit breaker through the notch 326, at which time the circuit breaker can be pulled out of the installed position in the chassis if the operating member 31 is pulled; if the operating member 31 is not pulled but released, under the action of the second elastic member 33, the operating member 31 rotates counterclockwise to drive the end 313 of the operating member to separate from the matching portion 352 of the stop member 35, the third elastic member 36 is not pressed any more and rebounds, and under the action of the restoring force of the third elastic member 36, the head 351 of the stop member protrudes out of the circuit breaker again through the notch 326 and is blocked and limited with the chassis where the circuit breaker is located.

It is understood that the mating portion 352 may be a groove, a protrusion, or other existing structures or components; the engagement of the operating member 31 with the engaging portion 352 is not limited to pressing the engaging portion 352 of the stopper 35 by the operating member end 313, but the operating member 31 may drive the stopper 35 by a link or other engaging structure therebetween.

[ relation between the locking Assembly and the on/off button ]

Referring to fig. 11-14, the locking member 34, the closing button 41 and the opening button 42 cooperate to complete the switching of the locking member 34 between the first locking position and the second locking position, thereby realizing the locking and unlocking of the rotation of the operating member 31.

As shown in fig. 1 and 2, the closing button 41 can be moved from the pop-up state to the pressed state in the first direction (rightward in fig. 2) to effect closing, and the opening button 42 can be moved from the pop-up state to the pressed state in the first direction (rightward in fig. 1) to effect opening. As shown in fig. 13 and 14, the closing button 41 has a first guide portion 412 having a certain length, and the opening button 42 has a second guide portion 422 having a certain length, and both the first guide portion 412 and the second guide portion 422 extend in the first direction. The first guide portion 412 and the second guide portion 422 are grooves with openings facing each other, and the grooves have a certain width in the opposite direction, so that the first guide portion 412 and the second guide portion 422 together form a containing space. When the closing button 41 and the opening button 42 are engaged with the head spacer 32, the closing button 41 and the opening button 42 are positioned on the first layer of the head spacer 32, and the lock body 341 of the lock 34 is positioned on the second layer of the head spacer 32. The second boss 344 of the locking member 34 protrudes from the locking member body 341 located at the second layer to the first layer at a position other than the partition surface 325 of the head spacer 32, and the first guide portion 412 and the second guide portion 422 also have openings in a direction facing the second layer of the head spacer 32 (i.e., the Z-axis positive direction, the third direction) such that the second boss 344 protrudes into the accommodation space formed by the first guide portion 412 and the second guide portion 422 through the openings.

As shown in fig. 13, the first guide portion 412 is provided with a first guide section 4121 and a second guide section 4122 in succession in the first direction, the first guide section 4121 having a first width, the second guide section 4122 being adjacent to the first guide section 4121; the width of the second guide section 4122 gradually becomes smaller as it gets farther from the first guide section 4121. As shown in fig. 14, the second guide portion 422 is provided with a third guide section 4221, a fourth guide section 4222 and a fifth guide section 4223 in the order of adjoining in the first direction. The third guide section 4221 has a second width, the fifth guide section 4223 has a third width, the third width is less than the second width, and the fourth guide section 4222 between the third guide section 4221 and the fifth guide section 4223 gradually transitions from the second width to the third width.

As shown in fig. 11 (a) and 11 (b), when the closing button 41 is in the pressed state, the accommodation space has a first form, and the second boss 344 is defined in the first accommodation position in the accommodation space of the first form: between the first guide section 4121 of the first guide 412 and the fifth guide section 4223 of the second guide 422; at this time, the locking member 34 rotates to the first locking position, the first boss 343 of the locking member 34 contacts with the end 313 of the operating member or the first boss 343 has a smaller distance from the end 313 of the operating member to limit the rotation of the operating member 31, and the head 345 of the locking member extends out of the circuit breaker, so that the circuit breaker cannot be installed in the case in the on state but can only be installed in the case in the off state, so as to ensure the use safety of the user.

As shown in fig. 12 (a) and 12 (b), when the release button 42 is in the pressed state, the accommodating space has a second form, and the second boss 344 is defined in the second accommodating position in the accommodating space of the second form: between the second guide section 4122 of the first guide 412 and the third guide section 4221 of the second guide 422; at this point the lock 34 is rotated to the second locked position and the lock head 345 is retracted within the circuit breaker.

Switching of the locking member 34 between the first locking position and the second locking position is accomplished by a closing button 41 and a opening button 42. Changing the state of the closing button 41 or the opening button 42 may change the position of the second boss 344, thereby switching the locking position of the locking member 34.

Referring to fig. 11 and 12, when the locking member 34 is switched from the first locking position to the second locking position, the release button 42 is pushed, and the release button 42 is switched from the ejecting state to the pushing state and drives the second guiding portion 422 to move in the first direction (right direction), and due to the action of the switch-on/off assembly 4, the switch-on button 41 is switched from the pushing state to the ejecting state and drives the first guiding portion 412 to move in the opposite direction (left direction) of the first direction. The second guide section 4122 gradually approaches and contacts the first end 3441 of the second boss 344. As the width of the second guide section 4122 gradually becomes smaller, the second guide section 4122 presses the first end 3441 of the second boss 344 and forces the second boss 344 to gradually move toward the second guide 422 as the second guide section 4122 continues to move toward the second boss 344. At the same time, as the second guide 422 moves in the first direction, the width of the second guide 422 gradually increases. The second boss 344 moves from the first receiving position to the second receiving position between the second guide segment 4122 and the third guide segment 4221 under the pressing of the second guide segment 4122, and the locking member 34 completes the switching from the first locking position to the second locking position.

Switching of the locking member 34 from the second locking position to the first locking position requires the closing button 41 to be pressed, the whole procedure being the reverse of the previous switching procedure. At this time, the closing button 41 is switched from the ejecting state to the pressing state and drives the first guiding portion 412 to move in the first direction, the opening button 42 is switched from the pressing state to the ejecting state and drives the second guiding portion 422 to move in the opposite direction of the first direction, and the fourth guiding portion 4222 presses the second end 3442 of the second boss 344 and drives the second boss 344 to gradually move toward the first guiding portion 412. At the same time, as the first guide portion 412 moves in the first direction, the width of the first guide portion 412 gradually increases. The second boss 344 moves from the second receiving position to the first receiving position between the first guide segment 4121 and the fifth guide segment 4223 under the compression of the fourth guide segment 4222, and the locking member 34 completes the switch from the second locking position to the first locking position.

In the embodiment, when the switch-on button is pressed, the circuit breaker is in a switch-on state, and when the switch-off button is pressed, the circuit breaker is in a switch-off state, and the locking piece 34 is contracted inside the circuit breaker; the stopper head 351 has a chamfer, one surface of which contacts with the cabinet wall during insertion of the circuit breaker into the cabinet to compress the third elastic member 36, so that the stopper 35 is also retracted inside the circuit breaker until the circuit breaker is mounted at a specific position in the cabinet, the chamfer is separated from contact with the cabinet wall, the stopper 35 is ejected from the circuit breaker by the third elastic member 36, the other surface of the chamfer holds the cabinet wall, or the user rotates the operating member 31 to retract the stopper 35 inside the circuit breaker until the circuit breaker is mounted at a specific position in the cabinet, the user releases the operating member 31, and the stopper 35 ejects the circuit breaker and holds the cabinet wall by the third elastic member 36. The embodiment ensures that the circuit breaker can be installed in the case in the opening state, thereby improving the electricity safety of a user in the installation process.

[ brake-closing/opening Assembly ]

The related structure of the switching-on/off assembly 4 is shown in fig. 13-19. As shown in fig. 19, the on-off brake assembly 4 includes an on button 41, an off button 42, a stopper 43, a fourth elastic member 44, a link 45, a rotation shaft 46, a fifth elastic member 47, and a middle spacer 48. The link 45 includes a first link 451, a second link 452, and a third link 453. As shown in fig. 1 and 2, a closing button 41 and a opening button 42 are movably provided in the base 5; the closing button 41 and the opening button 42 have an ejecting state and a pressing state, respectively, and the states of the closing button 41 and the opening button 42 are different at the same time, that is, when the closing button 41 is in the pressing state, the opening button 42 is necessarily in the ejecting state, and when the opening button 42 is in the pressing state, the closing button 41 is necessarily in the ejecting state. The switch-on button 41 and the switch-off button 42 are used for switching on and off the circuit breaker, and the pressed states of the switch-on button 41 and the switch-off button 42 correspond to different switch-on and switch-off states of the circuit breaker respectively.

As shown in fig. 13, in order to facilitate the display of the structure of the closing button 41, the closing button 41 in fig. 19 is rotated around the X-axis by a certain angle to obtain the view in fig. 13. The closing button 41 comprises a closing button first section 4111, a closing button second section 4112 and a closing button third section 4113 which are sequentially connected, wherein the closing button first section 4111 and the closing button third section 4113 are in an X-axis bar-shaped structure, and the closing button second section 4112 is in a Z-axis bar-shaped structure.

One end of the closing button segment 4111, which is not connected, is a closing button head 4110 for being manually pressed by a user along a first direction to switch the closing button 41 from the ejected state to the pressed state. The closing button head 4110 passes through the closing button channel 321 on the head partition 32, and the closing button 41 does not exceed the outside of the circuit breaker when moving to the leftmost (opposite direction to the first direction) position, so here the manual pressing is not a direct manual pressing, but means that the user manually presses the closing button 41 using a specific tool. By the design that the closing button head 4110 does not exceed the exterior of the circuit breaker, misoperation in the installation and use process can be avoided.

The first guide portion 412 is located at a first closing button segment 4111, the first closing button segment 4111 having a blocking segment 414 extending in a Z-axis forward direction (third direction) between the first guide portion 412 and a second closing button segment 4112, the blocking segment 414 configured to: as shown in fig. 20, when the closing button 41 is in a pressed state and the electromagnetic driving member 1 stops, the blocking section 414 interferes with the reset movable member 24, the movable member 24 rotates to a second active position due to abutting against the blocking section 414, and the movable member 24 cooperates with the second abutting surface 424 on the opening button 42 in the second active position, so that the electromagnetic driving member 1 can drive the movable member 24 to move along the second active path and then contact the second abutting surface 424 and press the opening button 42; as shown in fig. 19, when the closing button 41 is in the ejecting state and the electromagnetic driving member 1 is stopped, the blocking section 414 can avoid the reset movable member 24 relative to the second active position, the movable member 24 rotates to the first active position due to abutting against the blocking section 414, and the movable member 24 cooperates with the first abutting surface 415 in the first active position, so that the electromagnetic driving member 1 can drive the movable member 24 to move along the first active path and then contact the first abutting surface 415 and press the closing button 41; the second active position is located downstream of the first active position in the first time needle direction (clockwise direction), and the first elastic member 23 is connected to the active member 24, so that the active member 24 has a tendency to rotate to the first active position when in the second active position, and the active member 24 has a tendency to rotate to the first active path when moving along the second active path.

It will be appreciated that, without affecting the automatic switching-on/off function, when the switch-on button 41 is in the pop-up state and the electromagnetic driving member 1 is stopped, the movable member 24 may also be flat with the linkage member 21 without abutting against the blocking section 414 when reset, and when the switch-off button 42 is in the pop-up state and the electromagnetic driving member 1 is stopped, the movable member 24 abuts against the blocking section 414 when reset and rotates to the second active position.

The blocking section 414 has a stepped surface 413 at an end thereof facing away from the movable member 24 and adjacent to the first guide portion 412, and when the circuit breaker is in the open state and the stopper head 351 is retracted into the circuit breaker, the position of the closing button 41 enables the stepped surface 413 to support the stopper 35 in the Z-axis direction, thereby preventing the stopper 35 from being dislocated or interfering with the operation of other components during the retraction or extension of the circuit breaker.

The second closing button segment 4112 extends from the first closing button segment 4111 in the Z-axis forward direction (third direction) and has a first abutment surface 415 and a second stop surface 419 thereon. In the automatic closing process, the first abutting surface 415 cooperates with the working surface 243 of the movable member 24 to complete automatic closing of the circuit breaker. The second stop surface 419 contacts the limiter 43 in the closed state and defines the limiter 43 in a second limit position.

The third closing button segment 4113 extends from the second closing button segment 4112 in the forward X-axis direction (first direction), and has a first stop surface 418 thereon, where the first stop surface 418 is configured to contact and define the limiting member 43 in the first limiting position when in the open state. The unconnected end of the third section 4113 of the closing button is further provided with a first connecting rod hole 416 and a guiding boss 417, the closing button 41 is connected to the rotating shaft 46 through the first connecting rod hole 416 and the first connecting rod 451, a sliding groove (not shown) matched with the guiding boss 417 is formed in the base 5, and when the closing button 41 moves left and right, the guiding boss 417 slides in the sliding groove, so that the dislocation of the closing button 41 is avoided.

As shown in fig. 14, the brake release button 42 has a bar-shaped structure in the X-axis direction. One end of the release button 42 is a release button head 4210 for manual depression by a user in a first direction to switch the release button 42 from the eject state to the depressed state. The trip button head 4210 passes through a trip button passage 322 on the head partition 32. As with the switch-on button 41, when the switch-off button 42 moves to the leftmost (opposite direction to the first direction) position, the switch-off button head 4210 does not exceed the exterior of the circuit breaker, so that the user can press the switch-off button 42 only by hand using a specific tool, and erroneous operation during installation and use can be avoided.

The other end of the brake release button 42 is provided with a position supplementing table 428, the position supplementing table 428 is provided with a second connecting rod hole 429, the brake release button 42 is connected to the rotating shaft 46 through the second connecting rod hole 429 and the second connecting rod 452, the position supplementing table 428 improves the opening position of the second connecting rod hole 429, the fourth connecting rod hole 462 corresponding to the rotating shaft 46 is guaranteed to be in the same plane, and the connecting rod connection is more reliable.

The release button 42 further has a second guide portion 422 and a stopper mounting portion, and the second guide portion 422 and the stopper mounting portion are located on the same surface of the release button 42 as the replenishment table 428. Wherein the second guide 422 is closer to the trip button head 4210 to facilitate engagement with the locking member 34 on the head spacer 32.

As shown in fig. 15, the stopper mounting portion includes a torsion spring arm groove 4211, a first fan-shaped groove 4212, a second fan-shaped groove 4213, a third stopper surface 4214, a support surface 4215, a second abutment surface 424, a through hole groove 425, a through hole 426, and an abutment table 427.

The supporting surface 4215 is used for bearing the limiting member 43, and the opening button 42 protrudes from one side of the supporting surface 4215 toward the closing button 41, so that the limiting member 43 is located between the first moving path and the second moving path, and the limiting member 43 is convenient for preventing the moving member 24 from rotating to the first moving path when the moving member 24 moves along the second moving path. The projection is provided with a through hole groove 425, a through hole 426 which is positioned at the bottom of the through hole groove 425 and is coaxially penetrated with the through hole groove 425, and a pivot 435 of the stopper 43 is rotatably provided in the through hole 426. A torsion spring arm groove 4211 and a first fan-shaped groove 4212 are provided on the side wall of the through hole groove 425. The fourth elastic member 44 is a torsion spring, and the torsion spring arm groove 4211 is used for assembling and fixing one rotating arm of the fourth elastic member 44, and the other rotating arm of the fourth elastic member 44 assembled in the first fan-shaped groove 4212 can rotate in the first fan-shaped groove 4212 under the action of external force. The first fan-shaped groove 4212 has a second fan-shaped groove 4213 in communication with a circumferential side thereof, and the second fan-shaped groove 4213 is configured to receive the second protrusion 433 of the stopper 43.

The brake release button 42 is further provided with an abutment 427 on the side surface on which the stopper 43 is mounted, and the abutment 427 has a second abutment surface 424. In the automatic opening process, the second abutting surface 424 is matched with the working surface 243 of the movable piece 24, so that the automatic opening of the circuit breaker is completed. The portion of the abutment 427 facing the limiter 43 is recessed to form a third stop surface 4214 to accommodate the limiter 43 and limit the range of rotation of the limiter 43.

As shown in fig. 16, the stopper 43 has an abutment surface 434 that is in contact engagement with the support surface 4215. The limiting member 43 is provided with a first protrusion 431 on a surface facing away from the abutment surface 434, and the first protrusion 431 is perpendicular to the moving plane (i.e., XY plane) of the movable member 24. The first limiting surface 432 is a surface of the limiting member 43 adjacent to the abutting surface 434, and the first limiting surface 432 is perpendicular to the moving plane (i.e., XY plane) of the movable member 24 and faces the second moving path of the movable member 24. During the rotation of the limiting member 43 against the turning force of the fourth elastic member 44, the first limiting surface 432 gradually approaches the third stop surface 4214 of the brake release button 42 until contacting, thereby defining the maximum rotation angle of the limiting member 43. The second limiting surface 436 is another surface of the limiting member 43 adjacent to the abutting surface 434, and the second limiting surface 436 is perpendicular to the moving plane (i.e., XY plane) of the movable member 24 and faces the first moving path of the movable member 24. When the limiting member 43 is in the second limiting position, the second limiting surface 436 contacts the second stop surface 419 of the closing button 41. The limiting member 43 is provided with a second protrusion 433 at the edge of the fitting surface 434, and the second protrusion 433 and the pivot 435 extend in the same direction from the fitting surface 434, so that when the fourth elastic member 44 is sleeved on the pivot 435, a rotating arm of the fourth elastic member 44 can abut against the second protrusion 433.

When the stopper 43, the fourth elastic member 44 and the release button 42 are assembled, the pivot 435 of the stopper 43 is assembled in the through hole 426 of the release button 42 by shaft hole fitting, so that the stopper 43 can rotate around the shaft center, the fourth elastic member 44 is sleeved on the pivot 435 and simultaneously assembled in the through hole groove 425, one rotating arm of the fourth elastic member 44 is assembled in the torsion spring arm groove 4211, and the other rotating arm is assembled in the first fan-shaped groove 4212 and is attached to the second protrusion 433 of the stopper 43. The fourth elastic member 44 keeps the stopper 43 in the plane shown in fig. 19 and 20 in a tendency to rotate in the first time needle direction, i.e. clockwise, about the pivot 435 (not shown in fig. 19 and 20). As shown in fig. 19, when the closing button 41 is in the pop-up state and the circuit breaker is in the off state, the fourth elastic member 44 makes the first protrusion 431 abut against the first stop surface 418 of the third section 4113 of the closing button, and the first protrusion 431 can prevent the limiting member 43 from being turned into the third section 4113 of the closing button due to the action of the fourth elastic member 44, so as to influence the closing of the following circuit breaker, and at this time, the limiting member 43 is in the first limiting position; as shown in fig. 20, when the closing button is in the pressed state and the circuit breaker is in the closed state, after the blocking of the first stop surface 418 is lost, the stopper 43 continues to rotate clockwise by the turning force of the fourth elastic member 44 until the second stop surface 436 of the stopper 43 contacts the second stop surface 419 (not shown in fig. 19 and 20) of the closing button 41, and at this time, the stopper 43 is in the second stop position.

After assembly, the position relationship of the closing button 41, the opening button 42, the limiting member 43 and the movable member 24 is shown in fig. 19, the first closing button section 4111 and the opening button 42 are arranged side by side on the same side (opposite side of the third direction) of the moving plane of the movable member 24, the blocking section 414 is positioned on the side, close to the movable member 24, of the first closing button section 4111, the limiting member 43 is positioned on the side, close to the movable member 24, of the opening button 42, the abutment 427 extends from the opening button 42 to the moving plane of the movable member 24, the second closing button section 4112 (blocked by the third closing button section 4113 in fig. 19 and not shown) extends from the first closing button section 4111 to the moving plane of the movable member 24, and the third closing button section 4113 is parallel to the first closing button section 4111.

As shown in fig. 17, the intermediate spacer 48 has a bottom hole 481 opened at the bottom of the intermediate spacer 48, a circular arc-shaped support stand 482 provided on the bottom coaxially with the bottom hole 481, and a stopper stand 484 also provided at the bottom. The bottom hole 481 of the intermediate spacer 48 is fitted in a base projection (not shown) shaft hole of the base 5. The support stand 482 cooperates with the shaft bottom surface 467 of the shaft 46 to support the shaft 46. The fifth elastic member 47 is a torsion spring, and the support table side 483 and the stopper table 484 are respectively for abutting two swivel arms of the fifth elastic member 47 (not shown in fig. 17). The support stand 482 and the stopper stand 484 are radially spaced from the bottom hole 481 to provide a rotational space for the first peripheral wall 464 of the rotary shaft 46.

Fig. 18 (a) and fig. 18 (b) show two opposite sides of the rotating shaft 16, and it can be seen that the rotating shaft 16 is cylindrical, the middle part has a through rotating shaft hole 466, and the rotating shaft hole 466 is matched with the protruding shaft hole of the base. The shaft 46 has a shaft bottom surface 467 on a side thereof adjacent to the intermediate spacer 48, and a first circumferential wall 464 and a second circumferential wall 465 are provided on the shaft bottom surface 467 on both sides of the shaft hole 466. The side of the rotary shaft 46 remote from the intermediate spacer 48 has a third link hole 461, a fourth link hole 462 and a fifth link hole 463.

During assembly, the middle spacer 48, the fifth elastic element 47 and the rotating shaft 46 are sequentially sleeved on the base 5 through base protrusions (not labeled in the drawing), one rotating arm of the fifth elastic element 47 is arranged on one side of the supporting table 482 away from the stopping table 484, and the other rotating arm is arranged on one side of the stopping table 484 away from the supporting table 482. When the rotary shaft 46 rotates clockwise in the plane shown in fig. 19, the first circumferential wall 464 of the rotary shaft 46 drives the rotating arm of the fifth elastic member 47 disposed on one side of the stop table 484 to rotate together, so that the fifth elastic member 47 makes the rotary shaft 46 rotate along the second clockwise direction (counterclockwise direction), and further drives the closing button 41 to pop up, the opening button 42 is pressed, and the breaker returns to the opening state.

Two ends of the first connecting rod 451 are respectively arranged in the first connecting rod hole 416 and the third connecting rod hole 461 and are used for connecting the closing button 41 and the rotating shaft 46; two ends of the second connecting rod 452 are respectively arranged in the second connecting rod hole 429 and the fifth connecting rod hole 463 and are used for connecting the brake release button 42 and the rotating shaft 46; both ends of the third link 453 are respectively disposed on the fourth link hole 462 and the operating mechanism 6, for connecting the rotation shaft 46 and the operating mechanism 6.

Referring to fig. 19 and 20, in this embodiment, the states of the closing button 41 and the opening button 42 are different through the first link 451, the second link 452 and the rotating shaft 46, that is, the states of the closing button 41 and the opening button 42 are different at the same time, and when the closing button 41 is in a pressed/popped state, the opening button 42 is correspondingly in a popped/pressed state: as shown in fig. 19 (although the circuit breaker is in the initial state in fig. 19, the circuit breaker can still be used for explaining the actions of the components of the circuit breaker after the opening button 42 is pressed), after the opening button 42 is pressed, the opening button 42 is switched from the ejecting state to the pressing state and pushes the second connecting rod 452 to the right (the first direction), the second connecting rod 452 drives the rotating shaft 46 to rotate in the second clockwise direction (the anticlockwise direction), the rotating shaft 46 drives the first connecting rod 451 to move relatively to the left, the first connecting rod 451 drives the closing button 41 to move leftwards, so that the closing button 41 is switched from the pressing state to the ejecting state, meanwhile, the rotating shaft 46 drives the third connecting rod 453 to move relatively to the left, the operating mechanism 6 is driven by the third connecting rod 453, the moving contact 61 is separated from the fixed contact 62 by the operating mechanism 6, and the circuit breaker is in the opening state as shown in fig. 1; as shown in fig. 20, when the closing button 41 is pressed, the closing button 41 is switched from the ejecting state to the pressing state and pushes the first link 451 to the right (the first direction), the first link 451 drives the rotation shaft 46 to rotate in the first time needle direction (clockwise rotation), the rotation shaft 46 drives the second link 452 to relatively move to the left, the second link 452 drives the opening button 42 to move to the left, so that the opening button 42 is switched from the pressing state to the ejecting state, and simultaneously the rotation shaft 46 drives the third link 453 to relatively move to the right (the first direction), the third link 453 pushes the operating mechanism 6, the operating mechanism makes the moving contact 61 contact with the fixed contact 62, and the circuit breaker is in the closing state, at this time, the third link passes over the dead point position, and the locking force thereof is greater than the turning force of the fifth elastic member 47 (not shown in fig. 2), so that the circuit breaker is kept in the closing state against the turning force.

[ initial off-state ]

As can be seen from the foregoing description, in order to improve the safety of the user in the installation process, the locking member 34 of the circuit breaker of this embodiment is only retracted inside the circuit breaker when the circuit breaker is in the open state, and thus the circuit breaker can be installed in the chassis. Accordingly, the state of the circuit breaker after being mounted in the chassis is an initial breaking state as shown in fig. 19, in which:

the movable iron core 11 of the electromagnetic driving piece 1 is positioned at a driving stop position, and the linkage piece 21 of the transmission assembly 2 is positioned at a linkage stop position;

the movable member 24 is in the first movable position: under the action of the first elastic element 23, the face of the movable element 24 facing away from the working surface 243 abuts against the blocking section 414 of the closing button 41 in the ejected state;

the release button 42 is in a pressed state;

the closing button 41 is in an ejected state;

the limiting member 43 is in the first limiting position: under the action of the fourth elastic member 44, the first protrusion 431 of the limiting member 43 is attached to the first stop surface 418 of the closing button 41.

The manual switching-on/off and automatic switching-on/off process of the circuit breaker of the present embodiment will be described with reference to fig. 19 to 24.

[ Manual switching-on ]

When a circuit breaker in a disconnected state is manually closed, a closing button 41 needs to be pressed by a specific tool, and after completion, the circuit breaker is in a closed state, and the states of all components are as shown in fig. 20:

The movable iron core 11 is at a driving stop position, and the linkage piece 21 is at a linkage stop position;

the movable member 24 is in the second movable position: during the rightward (first direction) movement of the closing button 41, the blocking section 414 drives the movable member 24 to rotate clockwise to the second movable position;

the closing button 41 is in the pressed state: the closing button 41 moves from the pop-up state to the right (first direction) to the pressed state;

the off-gate button 42 is in the pop-up state: the closing button 41 drives the rotating shaft 46 to rotate clockwise to the bottom through the first connecting rod 451, and then drives the opening button 42 to move leftwards (opposite to the first direction) from the pressing state to the ejecting state through the second connecting rod 452;

the limiting member 43 is in the second limiting position: during the rightward (first direction) movement of the closing button 41, the first protrusion 431 loses the blocking of the first stop surface 418, and the limiting member 43 continues to rotate clockwise under the action of the turning force of the fourth elastic member 44 until the second stop surface 436 of the limiting member 43 contacts the second stop surface 419 (not shown in fig. 20) of the closing button 41;

the closing button 41 drives the rotating shaft 46 to rotate clockwise to the bottom through the first connecting rod 451, and then drives the operating mechanism 6 through the third connecting rod 453 to realize closing. At this time, the link mechanism has passed the dead point, and the locking force thereof is greater than the turning force of the fifth elastic member 47, so that the circuit breaker is still in the on state after the on button 41 is released.

[ Manual brake-separating ]

Similarly, when the circuit breaker in the closed state in fig. 20 is manually opened, the opening button 42 needs to be pressed by a specific tool, the movement process of each component is opposite to that of the manual closing, and the circuit breaker is restored to the open state shown in fig. 19 after completion. It will be appreciated that during manual opening, the side of the movable element 24 facing away from the working surface 243 always rests against the blocking section 414 under the pivoting force of the first elastic element 23.

[ automatic closing ]

When the breaker in the opening state is automatically closed, the winding 17 of the electromagnetic driving piece 1 is electrified firstly:

as shown in fig. 21, the electromagnetic driving member 1 is started after the winding 17 is energized, and the movable iron core 11 moves rightward (from a to B) from the driving stop position to the driving actuation position under the action of electromagnetic force, so as to drive the linkage member 21 to rotate clockwise (from C to D) from the linkage stop position to the linkage actuation position; during the rotation of the linkage 21, the movable member 24 moves along the first movement path: the movable member 24 gradually disengages from the blocking section 414, the movable member 24 resumes to rotate with the linkage member 21 after being straightened by the rotary force of the first elastic member 23 (not shown in fig. 21), the working surface 243 of the movable member 24 contacts with the first abutting surface 415 of the closing button second section 4112 (not shown in fig. 21), and the movable member 24 presses the closing button second section 4112 to transfer kinetic energy generated by the electromagnetic driving member 1 to the closing button 41, that is, the movable member 24 completes pressing of the closing button 41; the closing button 41 is switched from the ejection state to the pressing state, and accordingly, the opening button 42 is changed to the ejection state; during the rightward (first direction) movement of the closing button 41, the first protrusion 431 of the stopper 43 loses the blocking of the first stop surface 418, and the stopper 43 continues to rotate clockwise by the turning force of the fourth elastic member 44 until the second stop surface 436 (not shown in fig. 21) of the stopper 43 contacts the second stop surface 419 (not shown in fig. 21) of the closing button 41.

After closing, the winding 17 is powered off and the electromagnetic drive 1 stops:

as shown in fig. 22, the iron core spring 13 provides a rebound force for the linkage member 21, so that the linkage member 21 rotates counterclockwise to drive the movable iron core 11 to translate leftwards, and the movable iron core 11 and the linkage member 21 recover the driving stop position and the linkage stop position; during the counterclockwise rotation of the linkage member 21, the surface of the movable member 24 facing away from the working surface 243 is abutted against the blocking section 414 of the closing button 41 in the closing state, and the blocking section 414 moves rightward (in the first direction) relative to the opening state at this time, so that the movable member 24 finally rotates to the second movable position; during the counterclockwise rotation of the linkage 21, the movable member boss 242 (not shown in fig. 22) of the movable member 24 slides over the second stop surface 436 of the stop member 43, and simultaneously rotates the stop member 43 in the second clockwise direction (counterclockwise direction) and abuts against the third stop surface 4214 of the abutment 427, that is, the movable member boss 242 can rotate the stop member 43 toward the second movable path to enable the stop member 43 to avoid the movable member 24, and then the movable member 24 is out of contact with the stop member 43, the stop member 43 is reset under the action of the turning force of the fourth elastic member 44, the second stop surface 436 of the stop member 43 is in contact with the second stop surface 419 (not shown in fig. 22) of the closing button 41, and the stop member 43 is in the second stop position.

After the automatic closing, the link mechanism has passed the dead point, and the locking force is greater than the turning force of the fifth elastic member 47, so that the circuit breaker is still in the closing state shown in fig. 20 after the electromagnetic driving member 1 is powered off.

[ automatic brake release ]

When the circuit breaker in the closing state is automatically opened, the winding 17 of the electromagnetic driving part 1 is electrified firstly:

the electromagnetic driving piece 1 is started after the winding 17 is electrified, and the movable iron core 11 moves rightward (first direction) from the driving stop position to the driving actuating position under the action of electromagnetic force to drive the linkage piece 21 to rotate from the linkage stop position to the linkage actuating position along the first time needle direction (clockwise direction); as shown in fig. 23, during the rotation of the link 21, the movable member 24 moves along the second movable path: the movable piece 24 keeps contact with the blocking section 414 on one hand, gradually approaches and contacts with the limiting piece 43 on the other hand, and after the movable piece 24 slides along the contact surface, the opening button 42 is pressed; specifically, the movable member boss 242 abuts against the first limiting surface 432 and slides on the first limiting surface 432 under the elastic force of the first elastic member 23 (not shown in fig. 23), in this way, the limiting member 43 can prevent the movable member 24 from rotating to the first moving path, as shown in fig. 24, and the movable member 24 gradually approaches and abuts against the second abutting surface 424 of the abutting table 427 until the abutting table 427 is pressed, that is, the movable member 24 completes the pressing of the brake release button 42, so that it is switched from the ejection state to the pressing state, and the brake release is realized.

After the switching off is completed by the energization, the winding 17 of the electromagnetic driver 1 is disconnected, and the circuit breaker resumes the switching off state shown in fig. 19.

Example two

Referring to fig. 25 to 27, the second embodiment has a different operating member 31', a locking member 34' and a closing button 41' as compared with the first embodiment, and the other components are the same.

As shown in fig. 25, the widening of the arm guide groove 312 of the second operating member 31' forms an arm guide groove 312' on the basis of the first operating member 31 of the embodiment, and the operating member 31' is identical to other features of the operating member 31.

As shown in fig. 26, the second locking member 34' of the embodiment is provided with a first boss groove 3431' on the first boss 343 of the first locking member 34 of the embodiment, and the locking member 34' is identical to other features of the locking member 34.

As shown in fig. 27, in the second closing button 41 'of the embodiment, the second guide section 4122 is removed from the first guide portion 412 of the first closing button 41 of the embodiment, and a part of the second guide section 4122 is continuously replaced with the original first guide section 4121 to form an integral first guide section 4121', so as to form a first guide portion 412', and the closing button 41' has the same other features as the closing button 41.

As shown in fig. 28 to 29, when assembled, one of the swivel arms of the second elastic member 33 is fixed in the swivel arm groove 314, and the other swivel arm is extended through the swivel arm groove 312', and then is not abutted against the stop wall 328 of the head spacer 32, but is abutted against the first boss groove 3431'. The second elastic member 33 keeps the operating member 31 'in the plane shown in fig. 28 to 29 in a tendency to rotate in the second clockwise direction (counterclockwise direction) to return to the first operating position, while the second elastic member 33 keeps the locking member 34' in a tendency to rotate in the first time needle direction (clockwise direction) from the first locking position to the second locking position.

As shown in fig. 29, when the circuit breaker is in the on state, the accommodation space formed by the first guide portion 412' and the second guide portion 422 has a third configuration, and the second boss 344 (not shown in fig. 29) is defined in the first accommodation position in the accommodation space of the third configuration: between the first guide section 4121 'of the first guide portion 412' and the fifth guide section 4223 of the second guide portion 422, the fifth guide section 4223 prevents the second elastic member 33 from driving the locking member 34 'to rotate clockwise, at this time, the locking member 34' is in the first locking position, and the locking member head 345 extends out of the circuit breaker, so that the circuit breaker cannot be installed in the case in the closed state but can only be installed in the case in the open state, i.e., the circuit breaker cannot be taken out in the closed state, so as to ensure the use safety of the user.

When the circuit breaker is switched from the closed state to the open state, as the second guide portion 422 moves in the first direction relative to the second boss 344, when the fourth guide segment 4222 having the gradual width passes the second boss 344, the locking member 34' gradually rotates clockwise under the action of the second elastic member 33 due to no blocking of the fifth guide segment 4223, and the second boss 344 moves along the fourth guide segment 4222 to the third guide segment 4221. As shown in fig. 28, the accommodating space formed by the first guide portion 412' (not shown in fig. 28) and the second guide portion 422 has a fourth configuration, and the elastic force of the second elastic member 33 can limit the second boss 344 (not shown in fig. 28) to be placed in the second accommodating position: the lock 34 'is in the second locked position with the lock head 345 retracted within the circuit breaker, between the first guide segment 4121' (not shown in fig. 28) and the third guide segment 4221 in close proximity to the third guide segment 4221.

When the circuit breaker of the embodiment is switched from the closing state to the opening state, the locking position of the locking piece 34 is not required to be changed by extruding the second boss 344 by the second guide section 4122, so that the contact area of the related structure is reduced, and the resistance in the opening process is reduced.

Example III

In the first embodiment, the stopper 43 is mounted on the brake release button 42. The breaker of the embodiment comprises a cover body C and a baffle B, wherein a limiting piece A is arranged on the cover body C to realize the function of automatic switching-on and switching-off conversion.

Fig. 30 (a) and fig. 30 (b) are two opposite view angles of the limiting piece a, the limiting piece a is in a sheet structure, two sides of the sheet structure are a first surface A2 and a second surface A8, a first installation shaft A1 is arranged on the first surface A2, a second installation shaft A6 is arranged on the second surface A8, and a limiting guide groove A5 and a limiting arm groove A7 are formed beside the second installation shaft A6. The side surface of the sheet structure between the first surface A2 and the second surface A8 is provided with a second limiting surface A3 and a first limiting surface A4.

As shown in fig. 31, the shutter B is also of a sheet structure, and has a first shutter mounting hole B1 penetrating through the sheet structure, a second shutter mounting hole B2, a shutter limiting hole B3, and a shutter attaching surface B4 proximate to the third section 4113 of the closing button after the assembly is completed.

As shown in fig. 32, the cover C is used to cover the base 5 so as to cooperate with the base 5 to protect the internal structure of the circuit breaker. The cover body C is provided with a cover body installation surface C1, a cover body limiting hole C2 is formed in the cover body installation surface C1, a cover body arm groove C3, a first cover body installation shaft C4 and a second cover body installation shaft C5.

As shown in fig. 33, in combination with fig. 30 to 33, the first mounting shaft A1 of the stopper a is rotatably fitted in the cover body stopper hole C2, and the first surface A2 is in contact with the cover body mounting surface C1; the fourth elastic piece D is concentrically assembled on the second installation shaft A6 of the limiting piece A, one rotating arm of the fourth elastic piece D extends out of the limiting guide groove A5 of the limiting piece A and then is placed in the cover body arm groove C3, and the other rotating arm is placed in the limiting arm groove A7 of the limiting piece A. The fourth elastic member D keeps the stopper a in the plane shown in fig. 33 in a tendency to rotate counterclockwise about the second mounting axis A6, i.e., the fourth elastic member D keeps the stopper (a) in a tendency to rotate toward the first moving path, it being understood that the stopper a keeps in the plane shown in fig. 34 to 39 in a tendency to rotate in the first time needle direction (clockwise direction) about the second mounting axis A6 due to the difference in the angle of view. The first baffle mounting hole B1 and the second baffle mounting hole B2 of the baffle B are respectively and correspondingly concentrically assembled with the first cover body mounting shaft C4 and the second cover body mounting shaft C5 of the cover body C, and the second mounting shaft A6 is rotatably assembled in the baffle limiting hole B3. Therefore, the limiting piece A, the baffle B and the fourth elastic piece D are fixed between the cover body C and the closing button 41, and the baffle attaching surface B4 of the baffle B is close to the closing button three-section 4113.

[ initial off-state ]

As shown in fig. 34, when the interrupt circuit breaker is in the initial switching-off state in this embodiment:

the release button 42 is in a pressed state;

the closing button 41 is in an ejected state;

it should be noted that, unlike the embodiment in which the extending direction of the movable member boss 242 of the movable member 24 is directed inward of the paper so as to be in contact engagement with the stopper 43 on the release button 42, the extending direction of the movable member boss 242 in this embodiment is perpendicular to the plane of fig. 34 and is directed outward of the paper (third direction) so as to be in contact engagement with the stopper a on the cover C.

Next, the manual switching-on/off and automatic switching-on/off process of the circuit breaker of the present embodiment will be described with reference to fig. 34 to 39.

[ Manual switching-on ]

When a circuit breaker in a disconnected state is manually closed, a closing button 41 needs to be pressed by a specific tool, and after completion, the circuit breaker is in a closed state, and the states of all components are as shown in fig. 35:

the movable member 24 is in the second movable position: during the rightward (first direction) movement of the closing button 41, the blocking section 414 drives the movable member 24 to rotate to the second movable position along the first time needle direction (clockwise direction), and at this time, the movable member boss 242 and the limiting member a do not contact with each other;

the off-gate button 42 is in the pop-up state: the closing button 41 drives the rotating shaft 46 to rotate clockwise to the bottom through the first connecting rod 451, and then drives the opening button 42 to move leftwards from the pressed state to the ejected state through the second connecting rod 452;

the closing button 41 drives the rotation shaft 46 to rotate clockwise to the bottom through the first link 451, and then drives the operating mechanism 6 (not shown in fig. 35) through the third link 453 (not shown in fig. 35) to realize closing. At this time, the link mechanism has passed the dead point, and its locking force is greater than the turning force of the fifth elastic member 47 (not shown in fig. 35), so that the circuit breaker is still in the on state after the on button 41 is released.

[ Manual brake-separating ]

Similarly, when the circuit breaker in the closed state in fig. 35 is manually opened, the opening button 42 needs to be pressed by a specific tool, the movement process of each component is opposite to that of the manual closing, and the circuit breaker is restored to the open state shown in fig. 34 after completion. It will be appreciated that during manual opening, the side of the movable element 24 facing away from the working surface 243 always rests against the blocking section 414 under the pivoting force of the first elastic element 23.

[ automatic closing ]

as shown in fig. 36, the electromagnetic driving member 1 is started after the winding 17 is energized, and the movable iron core 11 moves rightward (from E to F) from the driving stop position to the driving actuation position under the action of electromagnetic force, so as to drive the linkage member 21 to rotate clockwise (from G to H) from the linkage stop position to the linkage actuation position; during the rotation of the linkage 21, the movable member 24 gradually disengages from the blocking section 414, the movable member 24 resumes to rotate with the linkage 21 after being straightened by the rotation force of the first elastic member 23, the working surface 243 of the movable member 24 abuts against the first abutting surface 415 (not shown in fig. 36) of the closing button 41, the kinetic energy generated by the electromagnetic driving member 1 is transferred to the closing button 41, the closing button 41 translates from the ejecting state to the right (first direction) to the pressing state, and accordingly, the opening button 42 is in the ejecting state.

After the energization completes the closing, the winding 17 of the electromagnetic driving member 1 is deenergized:

as shown in fig. 37, the core spring 13 provides a rebound force to the linkage 21, so that the linkage 21 rotates in the second clockwise direction (counterclockwise direction) to drive the movable core 11 to translate leftwards, and the movable core 11 and the linkage 21 resume the driving stop position and the linkage stop position; during the counterclockwise rotation of the linkage member 21, the surface of the movable member 24 facing away from the working surface 243 is abutted against the blocking section 414 of the closing button 41 in the closing state, and the blocking section 414 moves rightward (in the first direction) relative to the opening state at this time, so that the movable member 24 finally rotates to the second movable position; in the counterclockwise rotation process of the linkage member 21, the movable member boss 242 of the movable member 24 slides over the second limiting surface A3 of the limiting member a, and simultaneously makes the limiting member a rotate in the second clockwise direction (counterclockwise direction), and after the movable member boss and the limiting member a are separated from contact, the movable member boss and the movable member boss are restored to the position of the limiting member 43 in the brake-separating state under the action of the turning force of the fourth elastic member 44.

After the automatic closing, the link mechanism has passed the dead point, and the locking force is greater than the turning force of the fifth elastic member 47, so that the circuit breaker is still in the closing state shown in fig. 35 after the electromagnetic driving member 1 is powered off.

[ automatic brake release ]

as shown in fig. 38, the electromagnetic driving member 1 is started after the winding 17 is energized, and the movable iron core 11 moves rightward (first direction) from the driving stop position to the driving actuation position under the action of electromagnetic force, driving the linkage member 21 to rotate clockwise from the linkage stop position to the linkage actuation position; during the rotation of the linkage member 21, the surface of the movable member 24 facing away from the working surface 243 is kept in contact with the blocking section 414, and the movable member boss 242 of the movable member 24 moves rightward (first direction) and rotates clockwise under the guidance of the first limiting surface A4 of the limiting member a; as shown in fig. 39, the movable member 24 gradually approaches and abuts against a second abutment surface 424 (not shown in fig. 39) of the release button 42, so as to drive the release button 42 to move from the ejected state to the pressed state to the right (first direction) to realize release.

After the switching off is completed by the energization, the winding 17 of the electromagnetic driver 1 is disconnected, and the circuit breaker resumes the switching off state shown in fig. 34.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A circuit breaker, characterized in that: comprising the following steps:

a base (5);

the fixed contact (62) is fixedly arranged in the base (5);

a moving contact (61) movably arranged in the base (5);

the operating mechanism (6) is connected with the moving contact (61) and can drive the moving contact (61) to contact or be far away from the fixed contact (62) so as to finish switching on or switching off;

the switching-on and switching-off assembly (4) is movably arranged in the base (5), and the switching-on and switching-off assembly (4) is connected with the operating mechanism (6) and is used for driving the operating mechanism (6) to realize switching-on and switching-off of the circuit breaker and comprises a switching-on button (41) and a switching-off button (42); a first abutting surface (415) is arranged on the closing button (41); a second abutting surface (424) is arranged on the brake separating button (42);

the driving piece is arranged in the base (5) and comprises a transmission assembly (2); the transmission assembly (2) can be driven and drives the closing button (41) or the opening button (42) to move in the base (5); the transmission assembly (2) comprises a first active position and a second active position; the transmission assembly (2) is matched with the first abutting surface (415) when in the first movable position, and can be driven to contact and move the closing button (41); the transmission assembly (2) cooperates with the second abutment surface (424) in the second active position, and can be driven to contact and move the release button (42).

2. The circuit breaker of claim 1, wherein: the switching-on and switching-off assembly (4) further comprises a rotating shaft (46);

a closing button head (4110) is further arranged on the closing button (41), and the closing button head (4110) is used for manually pressing the closing button (41) along a first direction;

the brake release button (42) is further provided with a brake release button head (4210), and the brake release button head (4210) is used for manually pressing the brake release button (42) along the first direction;

the switching-on button (41) and the switching-off button (42) are connected with the operating mechanism (6) through the rotating shaft (46) to drive the operating mechanism (6) to switch on and off.

3. The circuit breaker of claim 2, wherein: the driving member further includes:

the electromagnetic driving piece (1) is arranged in the base (5);

the transmission assembly (2) is movably connected with the electromagnetic driving piece (1), and the electromagnetic driving piece (1) is used for driving the transmission assembly (2).

4. The circuit breaker of claim 3, wherein: the transmission assembly (2) comprises a linkage piece (21) and a movable piece (24);

one end of the linkage piece (21) is rotatably connected to the electromagnetic driving piece (1), and the electromagnetic driving piece (1) drives the linkage piece (21) to rotate;

The movable piece (24) is rotatably connected with the other end of the linkage piece (21) and comprises a first movable position and a second movable position;

the movable piece (24) is matched with the first abutting surface (415) when in the first movable position, and drives the closing button (41) to move along a first direction so as to realize closing; the movable piece (24) is matched with the second abutting surface (424) when in the second movable position, and drives the brake separating button (42) to move along the first direction so as to realize brake separating.

5. The circuit breaker of claim 4, wherein: the closing button (41) is further provided with a blocking section (414) between the closing button head (4110) and the first abutting surface (415); the blocking section (414) can interfere with the movable piece (24) when the closing button (41) is pressed, so that the movable piece (24) is positioned at a second movable position; the blocking section (414) is retracted from the movable part (24) when the closing button (41) is ejected, so that the movable part (24) is located at the first movable position.

6. The circuit breaker of claim 5, wherein: the switching-on button (41) comprises a switching-on button first section (4111), a switching-on button second section (4112) and a switching-on button third section (4113) which are sequentially connected;

The first section (4111) of the closing button and the opening button (42) are arranged on the same side of the moving plane of the movable piece (24) side by side; the closing button head (4110) is one end of the closing button, which is not connected with the section (4111); the blocking section (414) is arranged on one side, close to the movable piece (24), of the closing button section (4111);

the second closing button section (4112) extends from the other end of the first closing button section (4111) to the moving plane of the movable piece (24), and the first abutting surface (415) is positioned on the second closing button section (4112);

the three sections (4113) of the closing button are parallel to the one section (4111) of the closing button.

7. The circuit breaker of claim 4, wherein: the transmission assembly (2) further comprises a first elastic member (23) arranged between the linkage member (21) and the movable member (24), wherein the first elastic member (23) enables the movable member (24) to have a tendency to rotate to the first movable position when in the second movable position;

the electromagnetic driving part (1) is internally provided with a reset part, so that the movable part (24) can be reset to the second movable position after the closing button (41) is pressed, and the movable part (24) can be reset to the first movable position after the opening button (42) is pressed.

8. The circuit breaker of claim 4, wherein: the moving path of the movable piece (24) at the first movable position is a first movable path; the moving path of the movable piece (24) at the second movable position is a second movable path;

the switching-on and switching-off assembly (4) further comprises a limiting piece (43) arranged between the first movable path and the second movable path;

the movable piece (24) is provided with a movable piece boss (242) extending out of the moving plane;

the movable piece boss (242) can be abutted against the limiting piece (43) and contact the second abutting surface (424) in the process that the movable piece (24) moves along a second movable path.

9. The circuit breaker of claim 8, wherein: the switching-on and switching-off assembly (4) further comprises a fourth elastic piece (44), wherein the fourth elastic piece (44) is connected to the limiting piece (43) so that the limiting piece (43) keeps a trend of rotating towards the first moving path.

10. The circuit breaker of claim 8, wherein: the brake release button (42) is provided with an abutting table (427) extending to the moving plane of the movable piece (24), the second abutting surface (424) is located on the abutting table (427), and a part of the abutting table (427) facing the limiting piece (43) is sunken to form a third stop surface (4214) so as to accommodate the limiting piece (43) and limit the rotation range of the limiting piece (43).

11. The circuit breaker of claim 2, wherein: the switching-on and switching-off assembly (4) further comprises a middle spacer (48) and a fifth elastic piece (47);

the base (5) is provided with a bulge;

the middle spacer (48) is provided with a bottom hole (481), and the bottom hole (481) is matched with the protruding shaft hole of the base (5);

the rotating shaft (46) is provided with a rotating shaft hole (466), and the rotating shaft hole (466) is matched with the protruding shaft hole of the base (5);

the middle partition piece (48), the fifth elastic piece (47) and the rotating shaft (46) are sleeved on the base (5) in sequence through the protrusions of the base (5);

the fifth elastic piece (47) enables the rotating shaft (46) to have a trend of driving the operating mechanism (6) to open.

12. The circuit breaker of claim 2, wherein: the switching-on and switching-off assembly (4) further comprises a first connecting rod (451), a second connecting rod (452) and a third connecting rod (453);

the first connecting rod (451) is connected with the closing button (41) and the rotating shaft (46);

the second connecting rod (452) is connected with the brake separating button (42) and the rotating shaft (46);

the third connecting rod (453) is connected with the rotating shaft (46) and the operating mechanism (6).

13. The circuit breaker of any of claims 2-12, wherein: the switch-on button (41) is provided with a first guide part (412), the switch-off button (42) is provided with a second guide part (422), and the first guide part (412) and the second guide part (422) form a containing space.

14. The circuit breaker of claim 13, wherein: the circuit breaker further comprises a locking assembly (3), the locking assembly (3) comprising a head spacer (32) and a locking member (34);

the side wall of the head partition (32) is provided with a notch (326);

the locking piece (34) is rotatably arranged in the head partition piece (32), one surface of the locking piece (34) is provided with a second boss (344), and the second boss (344) is arranged in the accommodating space and comprises a first accommodating position and a second accommodating position;

wherein the second boss (344) is located at a first accommodating position when closing, so that the locking piece (34) extends out of the notch (326); the second boss (344) is located in a second accommodating position when the brake is released, so that the locking piece (34) is retracted from the notch (326).

15. The circuit breaker of claim 14, wherein: the locking assembly (3) further comprises an operating member (31) and a stop member (35);

the operating member (31) is rotatably arranged in the head partition (32) and comprises a holding part (311) extending out of the head partition (32) and an operating member end part (313) in the partition (32), wherein the holding part (311) is used for controlling the operating member (31) to rotate between a first operating position and a second operating position;

The stop member (35) is movably arranged in the head partition member (32) and can extend or retract from the notch (326) so as to fix or release the circuit breaker; the operating element end (313) can drive the stop element (35) to retract when in the second operating position.

16. The circuit breaker of claim 15, wherein: the other side of the locking piece (34) facing away from the second boss (344) is provided with a first boss (343); when the second boss (344) is located at a first accommodating position, the first boss (343) can be in abutting fit with the operation piece end (313) so as to limit the operation piece (31) to the first operation position; when the second boss (344) is located at the second accommodating position, the first boss (343) can avoid the operation piece end (313) so that the operation piece (31) can rotate to the second operation position.

17. The circuit breaker of claim 15, said closing button (41) having a stepped surface (413), said stepped surface (413) being capable of supporting said stop (35) when said stop (35) is retracted.