CN115910712A - a circuit breaker - Google Patents

Abstract

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

Description

a circuit breaker

technical field

The invention relates to the technical field of low-voltage electrical appliances, in particular to a circuit breaker.

Background technique

A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. According to the installation method, circuit breakers are divided into plug-in circuit breakers, fixed circuit breakers and drawer-type circuit breakers. The use of plug-in circuit breakers can effectively improve the safety of the electrical equipment industry. Therefore, plug-in circuit breakers have a wide ground application.

The circuit breaker is usually equipped with a closing and opening component to realize the closing and opening of the circuit breaker. The commonly used closing and opening components include single button and double button. The single button circuit breaker can realize the closing of the circuit breaker by driving the single button back and forth. However, the user cannot clearly distinguish the closing and opening status of the circuit breaker by observing the position of the single button. Although the two-button circuit breaker can judge the closing and opening state of the circuit breaker by checking and comparing the positions of different buttons, it often requires more than two transmission mechanisms to control the two buttons respectively, and can only have one closing and opening mode. The mechanism is complicated, it takes up a lot of space, the cost is high, and it cannot take into account the defects of multiple closing and opening methods.

Contents of the invention

The main purpose of the present invention is to provide a circuit breaker, aiming to solve the above-mentioned problems existing in the prior art.

To achieve the above object, the present invention provides a circuit breaker, characterized in that: comprising:

base;

The static contact is fixedly arranged in the base;

The moving contact is moved and arranged in the base;

An operating mechanism, which is connected to the moving contact and can drive the moving contact to contact or move away from the static contact to complete closing or opening;

The closing and opening components are movable and arranged in the base, the closing and opening components are connected with the operating mechanism, and are used to drive the operating mechanism to realize the opening and closing of the circuit breaker;

The driving part is arranged in the base, and the driving part is provided with a driving part near the closing and opening assembly, and the closing and opening assembly is provided with an abutting part, and the driving part and the abutting part cooperate to drive the closing and opening components to move in the base.

In some embodiments, the closing and opening components include a closing button, an opening button, and a rotating shaft;

The abutting portion includes a first abutting surface on the closing button and a second abutting surface on the opening button;

The closing button is also provided with a closing button head, and the closing button head is used to manually press the closing button along the first direction;

The opening button is also provided with a head of the opening button, and the head of the opening button is used to manually press the opening button along the first direction;

The closing button and the opening button are connected to the operating mechanism through the rotating shaft, and drive the operating mechanism to open and close.

In some embodiments, the driver includes:

An electromagnetic drive part is arranged in the base;

The transmission assembly is movably connected to the electromagnetic driver, and the electromagnetic driver drives the transmission assembly to drive the closing button or the opening button to move in the base; the transmission assembly includes a first active position and In the second active position, when in the first active position, it cooperates with the first abutment surface, and the electromagnetic driver can drive the transmission assembly to contact and move the closing button; the transmission assembly is in the When in the second active position, it cooperates with the second abutting surface, and the electromagnetic driving member can drive the transmission assembly to contact and move the opening button.

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

One end of the linkage is rotatably connected to the electromagnetic drive, and the electromagnetic drive drives the linkage to rotate;

The movable part is rotatably connected to the other end of the linkage part, including a first active position and a second active position;

When the movable part is in the first active position, it cooperates with the first abutment surface to drive the closing button to move in the first direction to realize closing; when the movable part is in the second active position Cooperating with the second abutment surface, the opening button is driven to move along the first direction to realize opening.

In some embodiments, the closing button further has a blocking section between the closing button head and the first abutment surface; the blocking section can be connected with the closing button when the closing button is pressed. The movable part interferes, so that the movable part is in the second active position; the blocking section avoids the movable part when the closing button pops out, so that the movable part is in the first active position.

In some embodiments, the closing button includes a first section of the closing button, a second section of the closing button, and a third section of the closing button;

A section of the closing button and the opening button are arranged side by side on the same side of the moving plane of the movable part; the head of the closing button is the unconnected end of the section of the closing button; the blocking section is arranged on One section of the closing button is close to the side of the movable part;

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 located at the second section of the closing button;

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

In some embodiments, the transmission assembly further includes a first elastic member disposed between the linkage member and the movable member, and the first elastic member makes the movable member in the second active position has a tendency to rotate to said first active position;

A resetting member is provided in the electromagnetic driver, so that the movable member can be reset to the second active position after the closing button is pressed, and the movable member can be reset to the second active position after the opening button is pressed. Reset to the first active position.

In some embodiments, the moving path of the movable member at the first active position is the first active path; the moving path of the movable member at the second active position is the second active path;

The closing and opening assembly also includes a limiter arranged between the first active path and the second active path;

The movable part has a movable part boss extending out of the moving plane;

The boss of the movable part can abut against the limiting part and contact the second abutting surface when the movable part moves along the second moving path.

In some embodiments, the closing and opening assembly further includes a fourth elastic member, the fourth elastic member is connected to the limiting member, so that the limiting member keeps rotating toward the first active path the trend of.

In some embodiments, the opening button is provided with an abutment platform extending to the moving plane of the movable part, the second abutment surface is located on the abutment platform, and the abutment platform faces the limit A part of the positioning member is indented to form a third stop surface to accommodate the limiting member and limit the rotation range of the limiting member.

In some embodiments, the closing and opening assembly further includes an intermediate spacer and a fifth elastic member;

There are protrusions on the base;

There is a bottom hole on the middle spacer, and the bottom hole is matched with the raised shaft hole of the base;

The rotating shaft has a rotating shaft hole, and the rotating shaft hole is matched with the raised shaft hole of the base;

The intermediate spacer, the fifth elastic member and the rotating shaft are sequentially sleeved on the base through the base protrusion;

The fifth elastic member makes the rotating shaft have a tendency to drive the operating mechanism to open.

In some embodiments, the closing and opening assembly further includes a first connecting rod, a second connecting rod, and a third connecting rod;

The first connecting rod connects the closing button and the rotating shaft;

The second connecting rod connects the opening button and the rotating shaft;

The third connecting rod connects 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 an accommodating space.

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

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

The locking piece is rotatably arranged in the head spacer, and one side of the locking piece has a second boss, and the second boss is placed in the accommodation space to include a first accommodation position and a second storage location;

Wherein, the second boss is located at the first accommodating position when the brake is closed, so that the locking member protrudes from the notch; the second boss is located at the second accommodating position when the brake is opened, so that The locking member is retracted from the notch.

In some embodiments, the locking assembly further includes an operating member and a stopper;

The operating part is rotatably arranged in the head spacer, and includes a grip part extending outside the head spacer and an end part of the operating part in the spacer, the grip part is used to control the The operating member rotates between a first operating position and a second operating position;

The stopper is movably arranged in the head spacer, and can extend or retract from the notch to fix or unfix the circuit breaker; when the end of the operating member is in the second operating position It can drive the stopper back.

In some embodiments, the other side of the locking member away from the second boss has a first boss; when the second boss is in the first accommodating position, the first boss can The end of the operating member abuts to limit the operating member at the first operating position; when the second boss is at the second accommodating position, the first boss can avoid the end of the operating member so that the operating member can be rotated to the second operating position.

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

The circuit breaker of the present invention can realize opening and closing of the circuit breaker by pressing the button automatically and/or manually. The circuit breaker includes a closing button and an opening button, both of which have a head for manual pressing and an abutment face for automatic pressing. The circuit breaker also has a transmission assembly and an electromagnetic driving part, the transmission assembly is connected to the electromagnetic driving part, and the linear driving force of the electromagnetic driving part can be selectively transmitted to different buttons by using the movable parts in the transmission assembly. The circuit breaker of the present invention can switch the closing and opening states of the circuit breaker with double buttons through a single transmission mechanism, and can also manually close and open the breaker, has a simple structure, low assembly precision requirements, and low cost.

The circuit breaker of the present invention includes an operating part, a locking part and a stopper. When the switch is closed, the head of the locking part protrudes out of the circuit breaker, and the operating part cannot rotate to retract the stopper. When the switch is opened, the head of the locking part retracts into the circuit breaker Inside, the stopper can be retracted after the operating part is rotated, which can prevent the circuit breaker from being plugged in by mistake when the switch is closed, and also allows the circuit breaker to be installed in the chassis only when the switch is opened, ensuring the safety of electricity use.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

The methods, systems and/or programs in the accompanying drawings will be further described according to the 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 like mechanisms throughout the several views of the drawings.

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

Fig. 2 is a circuit breaker closing state diagram involved in some embodiments of the present application;

Fig. 3 is a structural diagram of an electromagnetic driver involved in some embodiments of the present application;

Fig. 4 is a structural diagram of a transmission assembly involved in some embodiments of the present application;

Fig. 5 is a structural diagram of the completed assembly of the electromagnetic driver and the transmission assembly involved in some embodiments of the present application;

Fig. 6 is a structural diagram of the head spacer involved in some embodiments of the present application;

Fig. 7 is a structural diagram of the operating parts involved in some embodiments of the present application;

Fig. 8 is a structural diagram of a locking member involved in some embodiments of the present application;

Fig. 9 is a structural diagram of a stopper involved in some embodiments of the present application;

Fig. 10 is a structural diagram of the assembled locking assembly involved in some embodiments of the present application;

Fig. 11 is a positional relationship diagram of each structure of the locking assembly when the locking member is in the first locking position in some embodiments of the present application;

Fig. 12 is a positional relationship diagram of each structure 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 structural diagram of the closing button involved in some embodiments of the present application;

Fig. 14 is a structural diagram of the opening button involved in some embodiments of the present application;

Fig. 15 is an enlarged structural diagram of the installation part of the limiter of the opening button in Fig. 14;

Fig. 16 is a structural diagram of a limiting member involved in some embodiments of the present application;

Fig. 17 is a structural diagram of an intermediate spacer involved in some embodiments of the present application;

Fig. 18 is a structural diagram of a rotating shaft involved in some embodiments of the present application;

Fig. 19 is a connection diagram of some components when the circuit breaker involved in some embodiments of the present application is in the initial opening state;

Fig. 20 is a connection relationship diagram of some components when the circuit breaker involved in some embodiments of the present application is in the closing state;

Figure 21 is a connection diagram of some components of the circuit breaker at a certain moment in the automatic closing process involved in some embodiments of the present application;

Fig. 22 is a connection relationship diagram of some components of the circuit breaker at another moment in the automatic closing process involved in some embodiments of the present application;

Fig. 23 is a connection relationship diagram of some components of the circuit breaker at a certain moment in the automatic opening process involved in some embodiments of the present application;

Fig. 24 is a connection relationship diagram of some components of the circuit breaker at another moment in the automatic opening process involved in some embodiments of the present application;

Fig. 25 is a structural diagram of the operating parts involved in some embodiments of the present application;

Fig. 26 is a structural diagram of a locking member involved in some embodiments of the present application;

Fig. 27 is a structural diagram of the closing button involved in some embodiments of the present application;

Fig. 28 is a positional diagram of the structures 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 positional relationship diagram of each structure 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 structural diagram of a limiting member involved in some embodiments of the present application;

Figure 31 is a structural diagram of the baffles involved in some embodiments of the present application;

Figure 32 is a structural diagram of the cover involved in some embodiments of the present application;

Fig. 33 is a structural diagram of the limiter installed on the cover in some embodiments of the present application;

Fig. 34 is a connection diagram of some components when the circuit breaker involved in some embodiments of the present application is in the initial opening state;

Fig. 35 is a connection diagram of some components when the circuit breaker involved in some embodiments of the present application is in the closing state;

Fig. 36 is a connection diagram of some components of the circuit breaker at a certain moment in the automatic closing process involved in some embodiments of the present application;

Fig. 37 is a connection relationship diagram of some components of the circuit breaker at another moment in the automatic closing process involved in some embodiments of the present application;

Fig. 38 is a connection diagram of some components of the circuit breaker at a certain moment in the automatic opening process involved in some embodiments of the present application;

Fig. 39 is a connection diagram of some components of the circuit breaker at another moment in the automatic opening process involved in some embodiments of the present application.

Icons: 1-electromagnetic driver; 2-transmission component; 3-locking component; 4-closing and opening component; 5-base; 6-operating mechanism; 11-moving core; 111-moving core end cap; Rubber gasket; 13-core spring; 14-baffle; 15-yoke; 151-semi-open circular groove; 152-fixing groove; 16-skeleton; 17-winding; 18-static core; 21-linkage ; 211-link body; 212-link shaft; 213-link groove; 214-perforation; Boss; 243-working surface; 31-operation piece; 31'-operation piece; 311-grip; 312-rotary arm guide groove; 312'-rotary arm guide groove; Arm groove; 315-assembly groove; 32-head partition; 321-closing button channel; 322-opening button channel; 323-channel; 324-positioning shaft; 325-separation surface; 326-notch; Bit groove; 328-stop wall; 33-second elastic piece; 34-locking piece; 34'-locking piece; 341-locking piece body; 342-locking hole; 343-first boss; 3431'-first Boss slot; 344-second boss; 3441-first end; 3442-second end; 345-lock head; 35-stopper; 351-stopper head; 352-cooperating part ;353-limiting shaft; 354-stopper body; 36-third elastic member; 41-closing button; 41'-closing button; 4110-closing button head; 4111-closing button section; -Second section of closing button; 4113-Third section of closing button; 412-First guiding part; 412'-First guiding part; 4121-First guiding section; 4121'-First guiding section; 4122-Second guiding Section; 413-step surface; 414-blocking section; 415-first contact surface; 416-first connecting rod hole; 417-guiding boss; 418-first stop surface; 419-second stop surface; 42-opening button; 4210-opening button head; 4211-torsion spring arm groove; 4212-first fan-shaped groove; 4213-second fan-shaped groove; 4214-third stop surface; 4215-support surface; 422- 4221-third guide section; 4222-fourth guide section; 4223-fifth guide section; 424-second abutment surface; 425-through hole groove; 426-through hole; 427-abutment platform ;428-filling platform; 429-second connecting rod hole; 43-limiting member; 431-first protrusion; 432-first limiting surface; 433-second protrusion; 434-fitting surface; 435 -pivot; 436-second limiting surface; 44-fourth elastic member; 45-connecting rod; 451-first connecting rod; 452-second connecting rod; 453-third connecting rod; 46-rotating shaft; 461 -the third connecting rod hole; 462-the fourth connecting rod hole; 463-the fifth connecting rod hole; 464-the first circumferential wall; 465-the second circumferential wall; 466-the shaft hole; 467-the bottom surface of the rotating shaft; Five elastic parts; 48-middle spacer; 481-bottom hole; 482-support platform; 483-support platform side; 484-stop platform; 61-moving contact; 62-static contact; A-limiting piece; A1-first installation axis; A2-first surface; A3-second limit surface; A4-first limit surface; A5-limit guide groove; A6-second installation axis; A7-limit arm groove; A8-second surface; B-baffle; B1-first baffle installation hole; B2-second baffle installation hole; B3-baffle limit hole; B4-baffle fitting surface; C-cover; C1-cover installation surface; C2-cover limit hole; C3-cover arm slot; C4-first cover installation shaft; C5-second cover installation shaft; D-fourth elastic member.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" " and other indications are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the application product is used, and are only for the convenience of describing the application and simplifying the description, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, if the terms "first", "second" and the like appear in the description of the present application, they are only used to distinguish the description, and should not be understood as indicating or implying relative importance.

In addition, terms such as "horizontal" and "vertical" in the description of the present application do not mean that the components are required to be absolutely horizontal or hang, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of this application, it should also be explained that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed The connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

Embodiment one

As shown in Figure 1 and Figure 2, the circuit breaker shown in some embodiments of the present application is a plug-in circuit breaker, including an electromagnetic driver 1, a transmission assembly 2, a locking assembly 3, a closing and opening assembly 4, an operating mechanism 6, The moving contact 61, the static contact 62 and the base 5 for accommodating various components, the circuit breaker is installed in the case. The transmission assembly 2 moves under the drive of the electromagnetic driver 1 and acts on the closing and opening assembly 4. The closing and opening assembly 4, the operating mechanism 6, and the moving contact 61 are connected in sequence, so that the closing and opening assembly 4 drives the operating mechanism 6 to make The moving contact 61 contacts with the static contact 62 (as shown in FIG. 2 ) or separates (as shown in FIG. 1 ), so as to realize closing or opening of the circuit breaker.

In order to facilitate the description of the circuit breaker shown in Figure 1 and Figure 2, a spatial rectangular coordinate system is now established, wherein the left and right directions in the figure, that is, the length direction of the circuit breaker, is the X axis, and the right direction is the positive direction of the X axis (the first direction ), the upper and lower directions in the figure, that is, the width direction of the circuit breaker is the Y axis, the upward direction is the positive direction of the Y axis (the second direction), and the direction perpendicular to the paper surface is the positive direction of the Z axis (the third direction). Subsequent drawings and descriptions all follow this coordinate system, and Fig. 3, Fig. 5, Fig. 10, Fig. 11(b), Fig. 12(b), Fig. 19-Fig. 22, Fig. 28, Fig. 29, Fig. 34-Fig. 39 are XY plane views. It should be noted that the direction expressions used to illustrate the structure and operation of the circuit breaker in the embodiment of the present application, including up, down, left, right, front, back, etc., are not absolute methods, but relative directions. These direction expressions can correctly correspond to the structural posture shown in the figure. But when the structural attitude changes, these directional representations need to make corresponding interpretation changes to adapt to this structural attitude change.

[Electromagnetic driver]

As shown in Figure 1 and Figure 2, the electromagnetic driver 1 is arranged in the base 5, and as shown in Figure 20 and Figure 21, the electromagnetic driver 1 can be driven and reset along a straight line. As shown in FIG. 3 , the electromagnetic driver 1 includes a moving iron core 11 , a rubber gasket 12 , an iron core spring 13 , a baffle 14 , a yoke 15 , a skeleton 16 , a winding 17 and a static 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 skeleton 16 is disposed in the inner space. There is a hole in the middle of the baffle 14 , the yoke 15 has an opening at one end away from the baffle 14 , the skeleton 16 is a hollow structure with openings at both ends, and the outer surface of the skeleton 16 is covered with a winding 17 . Moving iron core 11 stretches out from the inner space surrounded by baffle plate 14 and yoke 15 from the skeleton 16 through one end opening of skeleton 16 and the direction of baffle plate 14 holes, and moving iron core 11 can move in this direction; 18 protrudes from the frame 16 through the opening of the other end of the frame 16 and the opening direction of the end of the yoke 15 away from the baffle plate 14 and is fixed. The yoke 15 is provided with a fixing groove 152 for inserting both sides of the baffle 14 , and the yoke 15 is also provided with a semi-open circular groove 151 outside the fixing groove 152 . On the one hand, the baffle 14 and the yoke 15 work together to fix the frame 16 at a relative position inside the yoke 15 , and on the other hand, the baffle 14 helps the overall magnetic circuit to close and increase the electromagnetic force. The iron core spring 13 is sheathed on the moving iron core 11 and passes through the hole of the baffle plate 14 , and one side of the iron core spring 13 leans against the opening surface of the framework 16 . The end of the moving iron core 11 away from the skeleton 16 has a moving iron core end cap 111, and the moving iron core 11 is also covered with a rubber gasket 12, and the rubber gasket 12 is limited between the moving iron core end cap 111 and the iron core spring 13. During this period, the moving iron core end cap 111 can prevent the rubber gasket 12 from coming out.

[Transmission components]

As shown in FIG. 4 , the transmission assembly 2 includes a linkage member 21 , a pin 22 , a first elastic member 23 and a movable member 24 . One end of the linkage 21 is rotatably connected to the electromagnetic driver 1: the linkage 21 includes a linkage body 211, one end of the linkage body 211 is connected with a linkage shaft 212, and the linkage shaft 212 is assembled in the semi-open circular groove of the electromagnetic drive 151, and can make the linkage 21 freely rotate around the axis of the linkage shaft 212. The linkage body 211 is provided with a perforation 214 for the driving iron core 11 to pass through and drive the linkage 21 to rotate in a first clockwise direction (clockwise from C to D in FIG. 5 ). The middle part of the other end of the linkage body 211 has a linkage groove 213 , and two sides of the linkage groove 213 have ears. One end of the movable part 24 has a movable part groove 241 , and two sides of the movable part groove 241 have ears. The pin 22 is used to connect the other end of the linkage 21 to the movable member 24, which is approximately parallel to the linkage shaft 212 and passes through the ear of the linkage 21 and the ear of the movable member 24, so that the movable member 24 is rotatably connected At the other end of the linkage part 21, as shown in FIG. 5 , the rotation plane of the movable part 24 and the rotation plane of the linkage part 21 are the same plane, namely the plane shown in FIG. 5 . The end of the movable part 24 away from the linkage part 21 is provided with a bending part, and the bending part is bent toward the first clockwise direction, so that the movable part 24 is hook-shaped in the rotation plane, as shown in Figure 4, the end of the bending part has a working Surface 243 and the movable member boss 242 extending perpendicular to the rotation plane, the extending direction of the movable member boss 242 (not shown in FIG. 5 ) is perpendicular to the plane of FIG. opposite direction). As shown in Figure 4, the first elastic member 23 is a torsion spring, which is sleeved on the pin 22. One arm of the first elastic member 23 fits in the linkage groove 213 of the linkage 21, and the other arm fits Closed in the movable part groove 241 of the movable part 24, the movable part 24 is kept to rotate around the other end of the linkage part 21 in the second clockwise direction opposite to the first clockwise (rotate counterclockwise from D to C in FIG. 5 ) The trend, that is, the movable part 24 maintains a tendency to open. So far, the movable part 24 can be displaced with the rotation of the linkage part 21, and can also rotate around the other end of the linkage part 21 in a resettable manner, that is, the movable part 24 can also rotate around the joint in a resettable manner.

As shown in FIG. 5 , the electromagnetic driver 1 and the transmission assembly 2 are assembled into a whole, that is, the driving mechanism, and the linkage 21 is driven by the electromagnetic driver 1 to rotate from the linkage stop position to the linkage activation position. The moving iron core 11 passes through the perforation 214 of the linkage 21 , one side of the iron core spring 13 leans against the opening surface of the skeleton 16 , and the other side of the iron core spring 13 is close to the linkage 21 and will not cross the linkage 21 . The rubber gasket 12 is limited between the moving iron core end cap 111 and the linkage 21 to avoid damage caused by direct contact between the moving iron core 11 and the linkage 21 and play a role of buffering and shock absorption. As shown in Figure 1 and Figure 2, when the electromagnetic drive assembly is fixed inside the circuit breaker, the housing (not marked in Figure 1 and Figure 2) of the head spacer 32 restricts the stop iron core 11 in the left direction of the figure The limit position is the driving stop position; as shown in FIG. 21 , the linkage 21 restricts the moving iron core end cap 111 to limit the right limit position of the moving iron core 11 in the figure, that is, the driving actuation position.

As shown in Figures 1, 2, and 5, when the winding 17 is energized and the electromagnetic driver 1 starts, the moving iron core 11 retracts from the driving stop position to the right (from A to B) to the driving actuation under the action of the electromagnetic force. position; during the retraction process of the moving iron core 11, the moving iron core end cap 111 drives the rubber gasket 12 to act on the linkage 21, so that the linkage 21 is driven by the electromagnetic drive 1 from the linkage stop position to approach the yoke 15 Rotate in the direction of the linkage actuation position, that is, rotate from the linkage stop position along the first clockwise direction (clockwise from C to D in Figure 5) to the linkage actuation position, driven by the linkage 21, the movable piece 24 During the action, the closing button 41 or the opening button 42 of the closing and opening assembly 4 is pressed to realize closing or opening of the circuit breaker. When the winding 17 is de-energized and the electromagnetic driver 1 stops, the iron core spring 13 provides a rebound force for the linkage 21, and the linkage 21 rotates from the linkage actuation position to the direction away from the magnetic yoke under the action of the iron core spring 13 to the linkage Stop position, that is, from the linkage actuation position to rotate in the second clockwise direction opposite to the first clockwise (counterclockwise from D to C in Figure 5) to the linkage stop position, driven by the linkage 21, the movable piece 24 resets ; At the same time, the linkage 21 acts on the moving iron core 11 through the rubber gasket 12, thereby driving the moving iron core 11 to reset to the driving stop position.

In this embodiment, one end of the linkage 21 is rotatably connected to the electromagnetic driver 1, but it should be noted that the linkage 21 is a feasible way for the movable member 24 to be movably connected to the electromagnetic driver 1, and the linkage 21 can rotate. One end of the circuit breaker can also be connected to other components and/or positions in the circuit breaker, as long as it is driven by the electromagnetic driver 1, the linkage 21 can rotate around one end between the linkage stop position and the linkage actuation position, and drive the movement Part 24 realizes closing or opening of the circuit breaker.

[lock components]

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

As shown in FIG. 1 , FIG. 2 , FIG. 11( a ) and FIG. 12( a ), the head spacer 32 is disposed at one end inside the base 5 . As shown in FIG. 6 , the head spacer 32 is divided into a first layer on the inside of the paper and a second layer on the outside of the paper by the partition surface 325 . The side of the first layer of the head spacer 32 has an opening button channel 322 and a closing button channel 321. The opening button channel 322 and the closing button channel 321 are respectively used for the opening button head 4210 and the closing button head 4110 to pass through. . The second layer of the head spacer 32 has a positioning shaft 324 on the partition surface 325 , and the positioning shaft 324 cooperates with the shaft hole so that the operating part 31 and the locking part 34 can rotate around the positioning shaft 324 . The partition surface 325 cooperates with the wall perpendicular to the partition surface 325 to define a semi-enclosed channel 323 for the grip portion 311 of the operating member 31 to be placed and to allow the grip portion 311 to

Rotate around the positioning axis 324 within a certain angle range, specifically, one of the walls defining the channel 323 stops at the stop wall 328 . The second layer of the head spacer 32 also has a limiting groove 327 , and a notch 326 is provided on the side wall of the second layer opposite to the limiting groove 327 .

As shown in FIG. 7 , the operating member 31 is in the form of a handle, including an assembly groove 315 , a grip portion 311 located on one side of the assembly groove 315 , and an operating member end 313 located on the other side of the assembly groove 315 . A pivot arm guide slot 312 and a pivot arm slot 314 having a certain width are formed on the side wall of the fitting slot 315 . As shown in Figures 10-12, when the 5 operating part 31 is matched with the head spacer 32, the fitting groove 315 of the operating part 31 is fitted on the positioning shaft 324 of the head spacer 32, so that the operating part 31 can rotate around the positioning shaft 324 turns. 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 the user to turn and/or pull the operating member 31 from the outside of the circuit breaker. In the assembly groove 315 of the operating member 31, a second elastic

part 33, the second elastic part 33 is a torsion spring, a rotating arm of the second elastic part 33 is fixed in the rotating arm groove 314 on the operating part 310, and the other rotating arm protrudes through the rotating arm guide groove 312 and leans against the On the stop wall 328 of the head spacer 32 , the operating member 31 has a tendency to rotate in the second clockwise direction (counterclockwise direction) and return to the first operating position. The surface defining the channel 323 on the stop wall 328 and the surface against which the other arm of the second elastic member 33 abuts are two different surfaces, specifically, the surface defining the channel 323

The length surface of the stop wall 328 is the length surface of the stop wall 328, the surface of the stop wall 328 along the length direction and perpendicular to the partition surface 325, the thickness of the stop wall 328 is the thickness of the stop wall 328 on the surface against which the other arm of the second elastic member 33 The surface, the thickness surface is the surface of the blocking wall 328 along the thickness direction and perpendicular to the partition surface 325 . The second elastic member 33 makes the operating member 31 maintain a tendency to rotate around the positioning axis 324 in the second clockwise direction (counterclockwise direction) in the plane shown in FIGS. 10-12 , that is, the operating member 31 is initially not operated. The bottom is located at the first operating position, and can be rotated by the user in the first clockwise direction (clockwise direction) to the second operating position. After the user releases the operating member 31, the second elastic member 33 can make the operating member 31 rotate counterclockwise and reset to In the first operating position, it can be understood that when the operating member 31 is reset to the first operating position, it abuts against the length surface of the stop wall 328 .

Fig. 8 (a) and Fig. 8 (b) are different angles of view of locking part 34, as can be seen, locking part 34 comprises locking part body 341, is arranged on the first boss 343 on one side of locking part body 341, is arranged on locking part. The second boss 344 on the other side of the piece body 341 away from the first boss 343 is provided with a locking hole 342 at one end of the locking piece body 341, and the locking hole 342 communicates with the side where the first boss 343 is located and the second boss 344 On the other side, the head portion 345 of the locking member extends laterally from the end of the locking member body 341 away from the locking hole 342 and is located between the first boss 343 and the second boss 344 . As shown in Figures 10-12, when the locking piece 34 and the head spacer 32 are matched, the locking hole 342 (not shown in Figures 10-12) of the locking piece 34 is sleeved and fitted on the head spacer 32. on the positioning shaft 324 , so that the locking member 34 can rotate around 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. When it is turned to the bottom, it is in the first locking position, and the head part 345 of the locking part protrudes out of the circuit breaker through the notch 326; (clockwise direction) is in the second locking position when it is turned to the end, and the head 345 of the locking member retracts into the inside of the circuit breaker.

The stopper 35 is movably disposed in the head spacer 32 and can extend or retract from the notch 326 to fix or unfix the circuit breaker. As shown in Figure 9, the stopper 35 includes a stopper body 354, a stopper shaft 353 located on one side of the stopper body 354, and a stopper head located on the other side of the stopper body 354 opposite to the stopper shaft 353 351 , the side of the stopper body 354 is also provided with a matching portion 352 .

As shown in FIG. 10 , the third elastic member 36 is a spring, and the limiting shaft 353 of the stopper 35 is covered with the third elastic member 36 , and the limiting shaft 353 is assembled on the head spacer 32 together with the third elastic member 36 in the limit slot 327 of the The stopper 35 protrudes at least partially out of the circuit breaker without being driven by the operating member 31, specifically, the stopper head 351 may protrude out of the circuit breaker through the notch 326 under the push of the third elastic member 36 outside and engage with the chassis where the circuit breaker is located to prevent the circuit breaker from sliding out of the chassis.

As shown in Figure 11(a), when the locking member 34 is at the first locking position, the operating member 31 is at the first operating position, and the locking member 34 limits the rotation angle of the operating member 31 so that the stopper 35 cannot fully retract the circuit breaker Inside. Specifically, when the operating member 31 is rotated clockwise by the user, the first boss 343 of the locking member 34 abuts against the end 313 of the operating member to restrict the rotating of the operating member 31 to the second operating position, so 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 head of the stopper 351 cannot be retracted into the circuit breaker, thereby prompting the user that the circuit breaker is in the closed state at this time, The operating member 31 cannot be pulled out to remove the circuit breaker from the installation position in the cabinet.

As shown in Figure 12(a), when the locking member 34 is in the second locking position, the first boss 343 no longer restricts the operating member 31 from pressing the stopper 35 (in FIG. 12(a), the locking member 34 is clearly shown, The stopper 35 is omitted in particular), in combination with the stopper 35 in Fig. 10, it can be understood that the first boss 343 can avoid the end 313 of the operating member at this time, and the operating member 31 can be operated by the user from the first operating position Turn to the second operating position and drive the stopper 35 to fully retract into the circuit breaker. Specifically, when the user rotates the operating member 31 clockwise to the second operating position at a large angle, the end portion 313 of the operating member can press the matching portion 352 of the stopper 35 and compress the third elastic member 36 during the rotation, so that the stopper The part head 351 is retracted into the circuit breaker from the outside of the circuit breaker through the notch 326. At this time, if the operating part 31 is pulled, the circuit breaker can be pulled out from the installation position in the chassis; if the operating part 31 is not pulled but released, Under the action of the second elastic member 33, the counterclockwise rotation of the operating member 31 drives the end portion 313 of the operating member to disengage from the matching portion 352 of the stopper 35, and the third elastic member 36 is no longer compressed and rebounds. Under the action of the restoring force of the component 36, the head portion 351 of the stopper protrudes out of the circuit breaker through the notch 326 again and engages with the chassis where the circuit breaker is located to limit the position.

It can be understood that the matching portion 352 can be a groove, a protrusion, or other existing structures or parts; The matching part 352 can also realize that the operating part 31 drives the stopper 35 through a connecting rod or other matching structures between the two.

[The functional relationship between the locking component and the closing and opening button]

Please refer to Fig. 11-Fig. 14, the locking member 34, the closing button 41 and the opening button 42 work together to complete the switching of the locking member 34 between the first locking position and the second locking position, thereby realizing the rotation of the operating member 31 Lock and unlock.

As shown in Figures 1 and 2, the closing button 41 can move from the pop-up state along the first direction (to the right in Fig. 2) to the pressed state to realize closing, and the opening button 42 can move from the pop-up state along the first direction ( Figure 1 to the right) to move to the pressed state to achieve opening. As shown in FIG. 13 and FIG. 14 , the closing button 41 has a first guide portion 412 of a certain length, the opening button 42 has a second guide portion 422 of a certain length, the first guide portion 412 and the second guide portion 422 Both extend along the first direction. The first guide portion 412 and the second guide portion 422 are grooves facing each other with openings, and the grooves have a certain width in the direction opposite to each other, so that the first guide portion 412 and the second guide portion 422 have a common Form an accommodation space. When the closing button 41 and the opening button 42 cooperate with the head spacer 32, the closing button 41 and the opening button 42 are located on the first layer of the head spacer 32, and the lock body 341 of the locking piece 34 is located on the head spacer. Piece 32 of the second layer. The second boss 344 of the locking member 34 protrudes from the locking member body 341 on 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 There is also an opening in the direction facing the second layer of the head spacer 32 (that is, the positive direction of the Z axis, the third direction), so that the second boss 344 protrudes into the first guide part 412 and the second guide part through the opening. 422 in the containing space.

As shown in FIG. 13 , the first guide portion 412 is adjacently arranged in sequence in the first direction with a first guide segment 4121 and a second guide segment 4122 , the first guide segment 4121 has a first width, and the second guide segment 4122 is adjacent to the first guide segment 4122 . The guide section 4121; the width of the second guide section 4122 becomes gradually smaller as it moves away from the first guide section 4121. As shown in FIG. 14 , the second guide portion 422 is adjacently disposed in sequence in the first direction with a third guide segment 4221 , a fourth guide segment 4222 and a fifth guide segment 4223 . The third guide segment 4221 has a second width, the fifth guide segment 4223 has a third width, the third width is smaller than the second width, and the fourth guide segment 4222 between the third guide segment 4221 and the fifth guide segment 4223 is drawn from the second The width gradually transitions to a third width.

As shown in Figure 11(a) and Figure 11(b), when the closing button 41 is in the pressed state, the accommodating space has a first form, and the second boss 344 is limited in the accommodating space of the first form In the first storage position: between the first guide section 4121 of the first guide part 412 and the fifth guide section 4223 of the second guide part 422; at this time, the locking part 34 rotates to the first locking position, and the second locking part 34 A boss 343 is in contact with the end portion 313 of the operating member or the first boss 343 has a small distance from the end portion 313 of the operating member to limit the rotation of the operating member 31, and the head portion 345 of the locking member protrudes out of the circuit breaker, so that the circuit breaker It cannot be loaded into the chassis in the closed state, but can only be loaded into the chassis in the open state, so as to ensure the safety of users.

As shown in Fig. 12(a) and Fig. 12(b), when the opening button 42 is in the pressed state, the accommodating space has a second form, and the second boss 344 is limited in the accommodating space of the second form. The second accommodation position: between the second guide section 4122 of the first guide part 412 and the third guide section 4221 of the second guide part 422; at this time, the locking part 34 rotates to the second locking position, and the locking part head 345 shrinks back into the circuit breaker.

The switching of the locking member 34 between the first locking position and the second locking position is accomplished through the closing button 41 and the opening button 42 . Changing the state of the closing button 41 or the opening button 42 can change the position of the second boss 344 , and then switch the locking position of the locking member 34 .

Please refer to FIG. 11 and FIG. 12 , the locking member 34 needs to press the opening button 42 to switch from the first locking position to the second locking position, and the opening button 42 switches from the ejected state to the pressed state and drives the second guide part 422 to the Moving in the first direction (right direction), due to the action of the closing and opening assembly 4, the closing button 41 switches from the pressed state to the ejected state and drives the first guide part 412 to move in the opposite direction (left direction) to the first direction. The second guiding segment 4122 gradually approaches and contacts the first end portion 3441 of the second boss 344 . Since the width of the second guide section 4122 gradually decreases, as the second guide section 4122 continues to move toward the second boss 344, the second guide section 4122 squeezes the first end 3441 of the second boss 344 and promotes the second The boss 344 gradually moves toward the second guide portion 422 . At the same time, as the second guiding portion 422 moves toward the first direction, the width of the second guiding portion 422 gradually increases. Under the extrusion of the second guide segment 4122, the second boss 344 moves from the first accommodating position to the second accommodating position between the second guide segment 4122 and the third guide segment 4221. Switching from a locked position to a second locked position.

To switch the locking member 34 from the second locking position to the first locking position, the closing button 41 needs to be pressed, and the whole action process is opposite to the aforementioned switching process. At this time, the closing button 41 switches from the pop-up state to the pressed state and drives the first guide part 412 to move in the first direction, and the opening button 42 switches from the pressed state to the pop-up state and drives the second guide part 422 to the first direction. Moving in the opposite direction of the direction, the fourth guiding section 4222 presses the second end portion 3442 of the second boss 344 and prompts the second boss 344 to gradually move toward the first guiding portion 412 . At the same time, as the first guiding portion 412 moves toward the first direction, the width of the first guiding portion 412 gradually increases. Under the pressure of the fourth guide segment 4222, the second boss 344 moves from the second accommodating position to the first accommodating position between the first guide segment 4121 and the fifth guide segment 4223, and the locking member 34 completes the transition from the first guide segment 4121 to the fifth guide segment 4223. Switching from the second locking position to the first locking position.

In this embodiment, when the closing button is pressed, the circuit breaker is in the closing state, and when the opening button is pressed, the circuit breaker is in the opening state, and the locking member 34 at this time shrinks inside the circuit breaker; the stopper head Part 351 has a chamfered part. When the circuit breaker is inserted into the case, one side of the chamfered part contacts the case wall and then compresses the third elastic member 36, so that the stopper 35 also shrinks inside the circuit breaker until the circuit breaker is installed. After entering a specific position in the case, the chamfered part breaks away from the contact with the case wall, and under the action of the third elastic member 36, the stopper 35 pops out of the circuit breaker, and the other side of the chamfered part hangs on the case wall, or The user rotates the operating member 31 to retract the stopper 35 into the circuit breaker until the circuit breaker is installed in a specific position in the chassis, the user releases the operating member 31, and under the action of the third elastic member 36, the stopper 35 Pop out the circuit breaker and hook to the case wall. This embodiment ensures that the circuit breaker can only be loaded into the chassis when it is in the off state, thereby improving the electricity safety of the user during the installation process.

[closing and opening components]

Please refer to Figure 13-19 for the relevant structure of the closing and opening component 4. As shown in Figure 19, the closing and opening assembly 4 includes a closing button 41, an opening button 42, a limiter 43, a fourth elastic member 44, a connecting rod 45, a rotating shaft 46, a fifth elastic member 47, and an intermediate spacer 48 . The connecting rod 45 includes a first connecting rod 451 , a second connecting rod 452 and a third connecting rod 453 . As shown in Fig. 1 and Fig. 2, the closing button 41 and the opening button 42 are movably arranged in the base 5; The states of the brake button 41 and the opening button 42 are different, that is, when the closing button 41 is in the pressed state, the opening button 42 must be in the pop-up state, and when the opening button 42 is in the pressed state, the closing button 41 must be in the pop-up state state. The closing button 41 and the opening button 42 are used for closing and opening of the circuit breaker, and the pressed states of the two correspond to different closing and opening states of the circuit breaker.

As shown in FIG. 13 , in order to facilitate the display of the structure of the closing button 41 , the view in FIG. 13 is obtained after the closing button 41 in FIG. 19 is rotated around the X axis by a certain angle. Closing button 41 comprises one section 4111 of closing button, two sections 4112 of closing button and three sections 4113 of closing button connected in sequence, wherein one section 4111 of closing button and three sections 4113 of closing button are strip structures in the X-axis, and the closing button The second section 4112 of the button is a bar-shaped structure in the Z-axis.

The unconnected end of the closing button section 4111 is the closing button head 4110, which is used for the user to manually press in the first direction to switch the closing button 41 from the pop-up state to the pressed state. The closing button head 4110 passes through the closing button channel 321 on the head spacer 32, and when the closing button 41 moves to the leftmost (opposite direction to the first direction) position, the closing button head 4110 does not exceed the open circuit Therefore, manual pressing here is not direct pressing by hand, but refers to the user manually pressing the closing button 41 with a specific tool. The design that the closing button head 4110 does not exceed the outside of the circuit breaker can avoid misoperation during installation and use.

The first guide part 412 is located at the first section 4111 of the closing button. The first section 4111 of the closing button has a blocking section 414 extending in the positive direction (third direction) of the Z axis between the first guiding section 412 and the second section 4112 of the closing button. The blocking section 414 is configured such that: as shown in FIG. 20 , when the closing button 41 is in the pressed state and the electromagnetic driver 1 is stopped, the blocking section 414 interferes with the resetting movable piece 24 , and the movable piece 24 moves due to abutting against the blocking section 414 Turn to the second active position, when the movable part 24 is in the second active position, cooperate with the second abutment surface 424 on the opening button 42, so that the electromagnetic drive part 1 can drive the movable part 24 to move along the second active path Contact the second abutment surface 424 and press the opening button 42; as shown in Figure 19, when the closing button 41 is in the pop-up state and the electromagnetic driver 1 stops, the blocking section 414 can avoid the reset activity relative to the second active position Part 24, the movable part 24 rotates to the first active position due to abutting against the blocking section 414, and the movable part 24 cooperates with the first abutment surface 415 when the movable part 24 is in the first active position, so that the electromagnetic drive part 1 can drive the movable part 24 After moving along the first active path, contact the first abutment surface 415 and press the closing button 41; the second active position is located downstream of the first active position in the first clockwise direction (clockwise direction), and the first elastic member 23 Connected to the movable part 24, the movable part 24 has a tendency to rotate to the first active position when it is in the second active position, and makes the movable part 24 have a tendency to rotate to the first active path when moving along the second active path.

It can be understood that, without affecting the automatic closing and opening function, when the closing button 41 is in the pop-up state and the electromagnetic drive part 1 is stopped, the movable part 24 can also not abut against the blocking section 414 when it is reset, and it can be linked with The part 21 is straight. At this time, the movable part 24 is in the first active position. When the opening button 42 is in the pop-up state and the electromagnetic drive part 1 is stopped, the movable part 24 abuts against the blocking section 414 and rotates to the second active position when it is reset. .

The blocking section 414 has a step surface 413 at one end away from the movable part 24 and close to the first guide part 412. 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 can make the step The surface 413 supports the stopper 35 from the direction of the Z axis, so as to prevent the stopper 35 from being misaligned or interfering with the operation of other components when retracting or extending out of the circuit breaker.

The second section 4112 of the closing button extends from the first section 4111 of the closing button to the positive direction of the Z axis (the third direction), and has a first contact surface 415 and a second stop surface 419 thereon. During the automatic closing process, the first abutting surface 415 cooperates with the working surface 243 of the movable part 24 to complete the automatic closing of the circuit breaker. The second stop surface 419 contacts the limiting member 43 in the closed state and limits the limiting member 43 to be in the second limiting position.

The third section 4113 of the closing button extends from the second section 4112 of the closing button to the positive direction of the X axis (the first direction), and has a first stop surface 418 on it. The first stop surface 418 is used to contact and The limiting member 43 is at the first limiting position. The unconnected end of the third section 4113 of the closing button also has a first connecting rod hole 416 and a guide 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, and the base 5 has The chute (not shown) cooperating with the guide boss 417, when the closing button 41 moves left and right, the guide boss 417 slides in the chute, thereby avoiding the dislocation of the closing button 41 .

As shown in FIG. 14 , the opening button 42 is a bar-shaped structure in the X-axis. One end of the opening button 42 is the opening button head 4210 , which is used for the user to manually press along the first direction to switch the opening button 42 from the pop-up state to the pressed state. The opening button head 4210 passes through the opening button channel 322 on the head spacer 32 . Like the closing button 41, when the opening button 42 moves to the leftmost position (the opposite direction of the first direction), the head 4210 of the opening button does not exceed the outside of the circuit breaker, so the user can only manually press the opening button with a specific tool 42. Misoperation during installation and use can be avoided.

The other end of the opening button 42 has a replacement platform 428, which has a second connecting rod hole 429, and the opening button 42 is connected to the rotating shaft 46 through the second connecting rod hole 429 and the second connecting rod 452. The platform 428 raises the opening position of the second connecting rod hole 429 to ensure that the fourth connecting rod hole 462 corresponding to the rotating shaft 46 is on the same plane, so that the connecting rod connection is more reliable.

The opening button 42 also has a second guide portion 422 and a limiter installation portion, and the second guide portion 422 and the limiter installation portion are located on the same surface of the opening button 42 as the replacement platform 428 . Wherein, the second guide part 422 is closer to the head part 4210 of the opening button so as to cooperate with the locking part 34 on the head spacer 32 .

As shown in Fig. 15, the installation part of the limiter includes a torsion spring arm groove 4211, a first fan-shaped groove 4212, a second fan-shaped groove 4213, a third stop surface 4214, a support surface 4215, a second abutment surface 424, and a through hole The slot 425 , the through hole 426 , and the abutting platform 427 .

The support surface 4215 is used to carry the limiter 43, and the opening button 42 protrudes from one side of the support surface 4215 toward the closing button 41, so that the limiter 43 is located between the first active path and the second active path, It is convenient for the limiting member 43 to prevent the movable member 24 from rotating to the first movable path when the movable member 24 moves along the second movable path. The protrusion is provided with a through hole 425 and a through hole 426 located at the bottom of the through hole 425 coaxially penetrating through the through hole 425 , and the pivot 435 of the limiting member 43 is rotatably disposed in the through hole 426 . The sidewall of the through hole slot 425 defines a torsion spring arm slot 4211 and a first sector slot 4212 . The fourth elastic member 44 is a torsion spring, and the torsion spring arm groove 4211 is used to assemble and fix a rotating arm of the fourth elastic member 44. The arm can rotate in the first fan-shaped slot 4212 . The circumferential side of the first fan-shaped groove 4212 communicates with a second fan-shaped groove 4213 , and the second fan-shaped groove 4213 is used for accommodating the second protrusion 433 of the limiting member 43 .

The opening button 42 is further provided with an abutment platform 427 on the side where the limiter 43 is installed, and the abutment platform 427 has a second abutment surface 424 . During the automatic opening process, the second abutting surface 424 cooperates with the working surface 243 of the movable part 24 to complete the automatic opening of the circuit breaker. A portion of the abutting platform 427 facing the limiting member 43 is indented to form a third stop surface 4214 for accommodating the limiting member 43 and limiting the rotation range of the limiting member 43 .

As shown in FIG. 16 , the limiting member 43 has an adhering surface 434 that is in contact with the supporting surface 4215 . The limiting member 43 is provided with a first protrusion 431 on a side away from the fitting surface 434 , and the first protrusion 431 is perpendicular to the moving plane of the movable member 24 (ie, the XY plane). The first limiting surface 432 is a surface adjacent to the fitting surface 434 on the limiting member 43, and the first limiting surface 432 is perpendicular to the moving plane of the movable part 24 (that is, the XY plane) and faces the second movable part of the movable part 24. path. 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 opening button 42 until it touches, thereby limiting the maximum limit of the limiting member 43. angle of rotation. The second limiting surface 436 is another surface adjacent to the fitting surface 434 on the limiting member 43, and the second limiting surface 436 is perpendicular to the moving plane of the movable part 24 (that is, the XY plane) and faces the first side of the movable part 24. active path. When the limiting member 43 is in the second limiting position, the second limiting surface 436 is in contact with the second stopping 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 the fourth elastic is sleeved on the pivot 435. When the member 44 is connected, a rotating arm of the fourth elastic member 44 can abut against the second protrusion 433 .

When the limiter 43, the fourth elastic member 44 and the opening button 42 are assembled, the pivot 435 of the limiter 43 is assembled in the through hole 426 of the opening button 42 through the shaft hole fit, so that the limiter 43 can rotate around the axis, and the fourth elastic member 44 is sleeved on the pivot 435 and assembled in the through hole groove 425 at the same time. One rotating arm of the fourth elastic member 44 is assembled in the torsion spring arm groove 4211, and the other rotating arm The arm is assembled in the first fan-shaped slot 4212 and fits against the second protrusion 433 of the limiting member 43 . The fourth elastic member 44 keeps the limiting member 43 to rotate in the first clockwise direction around the pivot 435 (not shown in FIGS. 19 and 20 ) in the plane shown in FIGS. 19 and 20 , that is, to rotate clockwise. the trend of. As shown in Figure 19, when the closing button 41 is in the pop-up state and the circuit breaker is in the opening 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 On the top, the first protrusion 431 can prevent the stopper 43 from being transferred into the third section 4113 of the closing button by the action of the fourth elastic member 44, which will affect the closing of the subsequent circuit breaker. At this time, the stopper 43 is in the first limit position; As shown in Figure 20, when the switch-on button is pressed and the circuit breaker is in the switch-on state, after losing the blocking of the first stop surface 418, the limiting member 43 is acted by the turning force of the fourth elastic member 44 Continue to rotate clockwise until the second limiting surface 436 of the limiting member 43 is in contact with the second stop surface 419 (not shown in FIGS. 19 and 20 ) of the closing button 41, and the limiting member 43 is in the first Two limit positions.

After assembly, the positional relationship between the closing button 41, the opening button 42, the limiter 43, and the movable part 24 is shown in Figure 19, and the first section 4111 of the closing button and the opening button 42 are arranged side by side on the same side of the moving plane of the movable part 24 (the side opposite to the third direction), the blocking section 414 is located on the side of the closing button section 4111 close to the movable part 24, the limiter 43 is located on the side of the opening button 42 close to the movable part 24, and the abutment platform 427 Extending from the opening button 42 to the moving plane of the movable part 24, the second section 4112 of the closing button (blocked by the third section 4113 of the closing button in FIG. 19 and not shown) extends from the first section 4111 of the closing button to the movement of the movable part 24 On the plane, the three sections 4113 of the closing button are parallel to the section 4111 of the closing button.

As shown in Figure 17, the intermediate spacer 48 has a bottom hole 481 opened at the bottom of the intermediate spacer 48, an arc-shaped support platform 482 located on the bottom and coaxially arranged with the bottom hole 481, and a stop platform also located at the bottom 484. The bottom hole 481 of the intermediate spacer 48 is matched with the shaft hole of the base protrusion (not marked in the figure) of the base 5 . The supporting platform 482 cooperates with the bottom surface 467 of the rotating shaft 46 to support the rotating shaft 46 . The fifth elastic member 47 is a torsion spring, and the side surface 483 of the support platform and the stop platform 484 are respectively used to abut against two rotating arms of the fifth elastic member 47 (not shown in FIG. 17 ). The support platform 482 and the stop platform 484 have a certain distance from the bottom hole 481 in the radial direction, leaving room for the first circumferential wall 464 of the rotating shaft 46 to rotate.

Fig. 18 (a) and Fig. 18 (b) are respectively opposite two sides of rotating shaft 16, as can be seen, rotating shaft 16 is cylindrical, and the middle part has through rotating shaft hole 466, and rotating shaft hole 466 cooperates with base protrusion shaft hole. The rotating shaft 46 has a rotating shaft bottom surface 467 on a side close to the intermediate spacer 48 , and a first circumferential wall 464 and a second circumferential wall 465 are disposed on both sides of the rotating shaft hole 466 on the rotating shaft bottom surface 467 . A side of the rotating shaft 46 away from the middle spacer 48 has a third connecting rod hole 461 , a fourth connecting rod hole 462 and a fifth connecting rod hole 463 .

During assembly, the intermediate spacer 48, the fifth elastic member 47 and the rotating shaft 46 are sleeved on the base 5 through the base protrusion (not marked in the figure) in sequence, and a rotating arm of the fifth elastic member 47 is placed on the support platform 482 away from the stop. On one side of the stop platform 484 , another rotating arm is placed on the side of the stop platform 484 away from the support platform 482 . When the rotating shaft 46 rotates clockwise in the plane shown in Figure 19, the first circumferential wall 464 of the rotating shaft 46 drives the rotating arm of the fifth elastic member 47 placed on the side of the stop platform 484 to rotate together, so the fifth elastic member 47 makes the rotating shaft 46 keep rotating in the second clockwise direction (counterclockwise direction), and then drives the closing button 41 to pop up, the opening button 42 is pressed, and the circuit breaker returns to the opening state.

The 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 for connecting the closing button 41 and the rotating shaft 46; the two ends of the second connecting rod 452 are respectively arranged in the second The connecting rod hole 429 and the fifth connecting rod hole 463 are used to connect the opening button 42 and the rotating shaft 46; the two ends of the third connecting rod 453 are respectively arranged on the fourth connecting rod hole 462 and the operating mechanism 6 for connecting Rotating shaft 46 and operating mechanism 6.

Please refer to Fig. 19 and Fig. 20 at the same time. In this embodiment, through the first connecting rod 451, the second connecting rod 452 and the rotating shaft 46, the states of the closing button 41 and the opening button 42 are different, that is, pressing the closing button at the same time 41 and the state of the opening button 42 are different. When the closing button 41 is in the pressed/ejected state, the opening button 42 is correspondingly in the ejected/pressed state: as shown in Figure 19 (although the circuit breaker is in the initial state in Figure 19, But it can still be used to explain the action of each part of the circuit breaker after pressing the opening button 42), when the opening button 42 is pressed, the opening button 42 switches from the pop-up state to the pressed state and pushes the second button to the right (first direction). The connecting rod 452, the second connecting rod 452 drives the rotating shaft 46 to rotate in the second clockwise direction (counterclockwise direction), the rotating shaft 46 drives the first connecting rod 451 to move relatively to the left, and the first connecting rod 451 drives the closing button 41 to move to the left , so that the closing button 41 is switched from the pressed state to the pop-up state, and at the same time, the rotating shaft 46 drives the third connecting rod 453 to move relatively to the left, and the third connecting rod 453 drives the operating mechanism 6. As shown in Figure 1, the operating mechanism 6 makes the dynamic The contact 61 is separated from the static contact 62, and the circuit breaker is in the opening state; as shown in Figure 20, when the closing button 41 is pressed, the closing button 41 switches from the pop-up state to the pressed state and moves to the right (first direction ) to push the first connecting rod 451, the first connecting rod 451 drives the rotating shaft 46 to rotate in the first clockwise direction (clockwise rotation), the rotating shaft 46 drives the second connecting rod 452 to move relatively to the left, and the second connecting rod 452 drives the opening button 42 moves to the left, so that the opening button 42 is switched from the pressed state to the ejected state, and at the same time, the rotating shaft 46 drives the third connecting rod 453 to move relatively to the right (first direction), and the third connecting rod 453 pushes the operating mechanism 6, as shown in the figure 2, the operating mechanism makes the moving contact 61 contact the static contact 62, and the circuit breaker is in the closed state. At this time, the third connecting rod crosses the dead point position, and its locking force is greater than that of the fifth elastic member 47 (not shown in the figure). 2), so as to overcome the turning force and keep the circuit breaker in the closed state.

[Initial opening state]

It can be seen from the above description that in order to improve the safety of electricity consumption by users during the installation process, only when the circuit breaker in this embodiment is in the open state, the locking member 34 will keep shrinking inside the circuit breaker, and then the circuit breaker can be closed. Put it into the chassis. Therefore, the state of the circuit breaker after it is installed in the chassis is the initial opening state as shown in Figure 19. At this time:

The moving iron core 11 of the electromagnetic driver 1 is in the drive stop position, and the linkage 21 of the transmission assembly 2 is in the linkage stop position;

The movable part 24 is in the first active position: under the action of the first elastic part 23, the side of the movable part 24 facing away from the working surface 243 abuts against the blocking section 414 of the closing button 41 in the pop-up state;

The opening button 42 is in a pressed state;

The closing button 41 is in the pop-up 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 fits on the first stop surface 418 of the closing button 41 .

Referring to FIG. 19-FIG. 24, the manual closing and opening and automatic closing and opening processes of the circuit breaker in this embodiment will be described below.

[Manual closing]

When manually closing the circuit breaker in the open state, you need to use a specific tool to press the closing button 41. After completion, the circuit breaker is in the closed state. The status of each component is shown in Figure 20:

The moving iron core 11 is at the drive stop position, and the linkage 21 is at the linkage stop position;

The movable part 24 is in the second active position: when the closing button 41 moves to the right (first direction), the blocking section 414 drives the movable part 24 to rotate clockwise to the second active position;

The closing button 41 is in the pressed state: the closing button 41 moves to the right (first direction) from the ejected state to the pressed state;

The opening button 42 is in the pop-up state: the closing button 41 drives the rotating shaft 46 to rotate clockwise to the end through the first connecting rod 451, and then drives the opening button 42 from the pressed state to the left through the second connecting rod 452 (opposite to the first direction) direction) to the pop-up state;

The limiter 43 is in the second limit position: during the movement of the closing button 41 to the right (first direction), the first protrusion 431 loses the blocking of the first stop surface 418, and the limiter 43 is supported by the fourth elastic member. 44 continues to rotate clockwise until the second limit surface 436 of the limit 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 end 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 its locking force is greater than the turning force of the fifth elastic member 47, so that after the closing button 41 is released, the circuit breaker is still in the closing state.

[Manual opening]

Similarly, when manually opening the circuit breaker in the closed state in Figure 20, it is necessary to use a specific tool to press the opening button 42, the movement process of each component is opposite to that of manual closing, and the circuit breaker returns to the state shown in Figure 19 after completion. The opening state shown. It can be understood that, during the manual opening process, under the action of the rotational force of the first elastic member 23 , the side of the movable member 24 facing away from the working surface 243 always abuts against the blocking section 414 .

[Auto closing]

When the circuit breaker in the opening state is automatically closed, the winding 17 of the electromagnetic drive part 1 is first energized:

As shown in Figure 21, the electromagnetic driver 1 starts after the winding 17 is energized, and the moving iron core 11 moves from the driving stop position to the right (from A to B) to the driving actuation position under the action of electromagnetic force, driving the linkage 21 from The linkage stop position turns clockwise (from C to D) to the linkage actuation position; during the rotation process of the linkage piece 21, the movable piece 24 moves along the first moving path: the movable piece 24 is gradually disengaged from the blocking section 414, in the first Under the rotary force of the elastic member 23 (not shown in FIG. 21 ), the movable member 24 returns to be straight with the linkage member 21 and then rotates with the linkage member 21. The working surface 243 of the movable member 24 is in contact with the second section 4112 of the closing button ( not shown in FIG. 21 ), the movable part 24 presses the second section 4112 of the closing button to transmit the kinetic energy generated by the electromagnetic drive part 1 to the closing button 41, that is, the movable part 24 completes the closing Pressing of the brake button 41; the closing button 41 is switched from the pop-up state to the pressed state, and correspondingly, the opening button 42 becomes the pop-up state; The first protrusion 431 loses the blocking of the first stop surface 418, and the stopper 43 continues to rotate clockwise under the turning force of the fourth elastic member 44 until the second stopper surface 436 of the stopper 43 (not in the shown in FIG. 21 ) is in contact with the second stop surface 419 (not shown in FIG. 21 ) of the closing button 41 .

After switching on, the winding 17 is de-energized, and the electromagnetic drive part 1 stops:

As shown in Figure 22, the iron core spring 13 provides resilience for the linkage 21, so that the linkage 21 rotates counterclockwise, drives the moving iron core 11 to translate to the left, and the moving iron core 11 and the linkage 21 return to the driving stop position and linkage stop position; during the counterclockwise rotation of the linkage member 21, the side of the movable member 24 facing away from the working surface 243 abuts against the blocking section 414 of the closing button 41 in the closing state, because the blocking section 414 has already Move to the right (first direction), so the movable part 24 finally rotates to the second active position; during the counterclockwise rotation of the linkage part 21, the movable part boss 242 (not shown in Fig. 22 ) of the movable part 24 is limited Slide over the second limit surface 436 of the position member 43, and at the same time make the limit member 43 rotate in the second clockwise direction (counterclockwise direction) and abut against the third stop surface 4214 of the abutment platform 427, that is, the movable part protrudes The stage 242 can rotate the stopper 43 toward the second moving path, so that the stopper 43 avoids the movable part 24, and then the movable part 24 is out of contact with the stopper 43, and the stopper 43 is under the turning force of the fourth elastic member 44. Reset under action, the second limiting surface 436 of the limiting member 43 is in contact with the second stopping surface 419 (not shown in FIG. 22 ) of the closing button 41, and the limiting member 43 is in the second limiting position.

After the automatic closing, the link mechanism has passed the dead point, and its 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 driver 1 is powered off.

[Automatic opening]

When the circuit breaker in the closed state is automatically opened, the winding 17 of the electromagnetic drive part 1 is first energized:

The electromagnetic driver 1 starts after the winding 17 is energized, and the moving iron core 11 moves from the driving stop position to the right (first direction) to the driving actuation position under the action of the electromagnetic force, driving the linkage 21 to move from the linkage stop position to the first clockwise direction. direction (clockwise) to the linked actuation position; as shown in Figure 23, during the rotation process of the linkage 21, the movable part 24 moves along the second active path: the movable part 24 keeps in contact with the blocking section 414 on the one hand, On the other hand, it gradually approaches and contacts the limiter 43, and the movable member 24 slides along the contact surface and then presses the opening button 42; Under the action of abutting against the first limiting surface 432 and sliding on the first limiting surface 432, in this way, the limiting member 43 can prevent the movable part 24 from rotating to the first moving path, as shown in Figure 24, the movable part 24 gradually approaches and abuts against the second abutment surface 424 of the abutment platform 427 until the abutment platform 427 is pressed, that is, the movable part 24 completes the pressing of the opening button 42, making it switch from the pop-up state to the pressed state, realizing Opening.

After the switch is turned on, the winding 17 of the electromagnetic driver 1 is de-energized, and the circuit breaker returns to the switch-off state shown in FIG. 19 .

Embodiment two

Please refer to Fig. 25-Fig. 27, compared with the first embodiment, the second embodiment has a different operating part 31', a locking part 34' and a closing button 41', and other components are the same.

As shown in Figure 25, the operating part 31' of the second embodiment widens the arm guide groove 312 on the basis of the operating part 31 of the first embodiment to form the arm guide groove 312', and other features of the operating part 31' and the operating part 31 same.

As shown in FIG. 26 , the locking piece 34' of the second embodiment is provided with a first boss groove 3431' on the first boss 343 of the locking piece 34 of the first embodiment, and the other features of the locking piece 34' are the same as those of the locking piece 34.

As shown in Figure 27, the closing button 41' of the second embodiment removes the second guide section 4122 from the first guide part 412 of the closing button 41 of the first embodiment, and the part of the second guiding section 4122 is replaced by the original first guiding section 4121 continues to replace the integrally formed first guide section 4121 ′, and further constitutes the first guide portion 412 ′. The other features of the closing button 41 ′ are the same as those of the closing button 41 .

As shown in Figures 28-29, during assembly, one arm of the second elastic member 33 is fixed in the arm groove 314, and the other arm is extended through the arm guide groove 312' and no longer rests on the head. The stopper wall 328 of the spacer 32 abuts against the first boss groove 3431 ′. The second elastic member 33 keeps the operating member 31' in the plane shown in FIGS. The locking member 34' maintains a tendency to rotate from the first locking position in the first clockwise direction (clockwise direction) to the second locking position.

As shown in Figure 29, when the circuit breaker is in the closed state, the accommodation space formed by the first guide part 412' and the second guide part 422 has a third shape, and the second boss 344 (not shown in Figure 29 ) is limited to the first accommodating position in the accommodating space of the third form: between the first guiding segment 4121' of the first guiding part 412' and the fifth guiding segment 4223 of the second guiding part 422, the fifth guiding The 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 head 345 of the locking member protrudes out of the circuit breaker, so that the circuit breaker cannot be closed in the closed state. It is loaded into the chassis and can only be loaded into the chassis in the open state, that is, the circuit breaker cannot be taken out in the closed state, so as to ensure the safety of users.

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 section 4222 with a gradually changing width passes the second boss 344 , Since there is no longer the blocking of the fifth guide segment 4223 , the locking member 34 ′ gradually rotates clockwise under the action of the second elastic member 33 , 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 part 412' (not shown in FIG. 28) and the second guide part 422 has a fourth shape, and the elastic force of the second elastic member 33 can limit the second The boss 344 (not shown in FIG. 28 ) is in the second accommodating position: between the first guide segment 4121 ′ (not shown in FIG. 28 ) and the third guide segment 4221 close to the third guide segment 4221 position, the locking member 34' is in the second locking position, and the head 345 of the locking member is retracted into the circuit breaker.

When the circuit breaker of this embodiment is switched from the closing state to the opening state, it is not necessary to rely on the second guiding section 4122 to press the second boss 344 to change the locking position of the locking member 34, which reduces the contact area of related structures. It is beneficial to reduce the resistance of the opening process.

Embodiment Three

In the first embodiment, the limiting member 43 is installed on the opening button 42 . The circuit breaker in this embodiment includes a cover body C and a baffle plate B, and the limiting member A is installed on the cover body C to realize the function of automatic switching on and off.

Fig. 30(a) and Fig. 30(b) are two relative viewing angles of the limiting member A. The limiting member A is in a sheet structure, and the two sides of the sheet structure are the first surface A2 and the second surface A8 respectively. There is a first installation axis A1 on the surface A2, and a second installation axis A6 on the second surface A8, and a limit guide groove A5 and a limit arm groove A7 are opened beside the second installation axis A6. The side of the sheet structure between the first surface A2 and the second surface A8 has a second limiting surface A3 and a first limiting surface A4.

As shown in Figure 31, the baffle B is also a sheet structure, which has a first baffle installation hole B1 through the sheet structure, a second baffle installation hole B2, a baffle limit hole B3 and a close-fitting hole after assembly. The baffle bonding surface B4 of the third section 4113 of the closing button.

As shown in FIG. 32 , the cover body 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 C has a cover installation surface C1, and the cover installation surface C1 is provided with a cover limit hole C2, a cover arm groove C3, a first cover installation axis C4, and a second cover installation axis C5.

The result after assembly is shown in Figure 33. With reference to Figure 30-33, the first installation axis A1 of the limiter A is rotatably assembled in the limit hole C2 of the cover body, and the first surface A2 is in contact with the cover body installation surface. C1 contact; the fourth elastic part D is concentrically assembled on the second installation axis A6 of the limiter A, and a rotating arm of the fourth elastic part D protrudes through the limit guide groove A5 of the limiter A and is placed on the cover In the arm slot C3, another rotating arm is placed in the limiting arm slot A7 of the limiting member A. The fourth elastic member D keeps the limiting member A in the plane shown in Figure 33 to maintain a tendency to rotate counterclockwise around the second installation axis A6, that is, the fourth elastic member D enables the limiting member (A) to maintain a direction toward the first It can be understood that, due to the different viewing angles, the limiter A maintains a tendency to rotate around the second installation axis A6 in the first clockwise direction (clockwise direction) in the plane shown in Figure 34-Figure 39 trend. The first baffle installation hole B1 and the second baffle installation hole B2 of the baffle B are respectively concentrically assembled with the first cover installation axis C4 and the second cover installation axis C5 of the cover C, and the second installation axis A6 can be It is rotatably assembled in the limiting hole B3 of the baffle. Thus, the limiting part A, the baffle B and the fourth elastic part D are fixed between the cover C and the closing button 41 , and the baffle bonding surface B4 of the baffle B is close to the third section 4113 of the closing button.

[Initial opening state]

As shown in Figure 34, when the circuit breaker in this embodiment is in the initial opening state:

The moving iron core 11 of the electromagnetic driver 1 is in the drive stop position, and the linkage 21 of the transmission assembly 2 is in the linkage stop position;

The movable part 24 is in the first active position: under the action of the first elastic part 23, the side of the movable part 24 facing away from the working surface 243 abuts against the blocking section 414 of the closing button 41 in the pop-up state;

The opening button 42 is in a pressed state;

The closing button 41 is in the pop-up state;

It should be noted that, different from the extension direction of the movable part boss 242 of the movable part 24 in Embodiment 1 pointing to the inside of the paper so as to contact and cooperate with the limiter 43 on the opening button 42, the movable part boss 242 in this embodiment The extending direction of is perpendicular to the plane of FIG. 34 and points out of the paper (the third direction), so as to contact and cooperate with the stopper A on the cover C.

Referring to Fig. 34-Fig. 39, the process of manual closing and opening and automatic closing and opening of the circuit breaker in this embodiment will be described below.

[Manual closing]

When manually closing the circuit breaker in the open state, you need to use a specific tool to press the closing button 41. After completion, the circuit breaker is in the closed state. The status of each component is shown in Figure 35:

The moving iron core 11 is at the drive stop position, and the linkage 21 is at the linkage stop position;

The movable part 24 is in the second active position: during the movement of the closing button 41 to the right (first direction), the blocking section 414 drives the movable part 24 to rotate in the first clockwise direction (clockwise) to the second active position. There is no contact between the boss 242 of the movable part and the limiting part A;

The closing button 41 is in the pressed state: the closing button 41 moves to the right (first direction) from the ejected state to the pressed state;

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

The closing button 41 drives the rotating shaft 46 to rotate clockwise to the end through the first connecting rod 451, and then drives the operating mechanism 6 (not shown in FIG. 35 ) through the third connecting rod 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 after the closing button 41 is released, the circuit breaker is still in the closing state.

[Manual opening]

Similarly, when manually opening the circuit breaker in the closed state in Figure 35, it is necessary to use a specific tool to press the opening button 42, the movement process of each component is opposite to that of manual closing, and the circuit breaker returns to the state shown in Figure 34 after completion The opening state shown. It can be understood that, during the manual opening process, under the action of the rotational force of the first elastic member 23 , the side of the movable member 24 facing away from the working surface 243 always abuts against the blocking section 414 .

[Auto closing]

When the circuit breaker in the opening state is automatically closed, the winding 17 of the electromagnetic drive part 1 is first energized:

As shown in Figure 36, the electromagnetic driver 1 starts after the winding 17 is energized, and the moving iron core 11 moves from the driving stop position to the right (from E to F) to the driving actuation position under the action of electromagnetic force, driving the linkage 21 from The linkage stop position turns clockwise (from G to H) to the linkage actuation position; during the rotation process of the linkage piece 21, the movable piece 24 gradually disengages from the blocking section 414, and under the action of the turning force of the first elastic piece 23, the movable piece 24 recovers to be straight with the linkage 21 and rotates together with the linkage 21, the working surface 243 of the movable piece 24 abuts against the first abutment surface 415 (not shown in FIG. 36 ) of the closing button 41, and the electromagnetic driver The kinetic energy generated by 1 is transmitted to the closing button 41, and the closing button 41 translates to the right (first direction) from the pop-up state to the pressed state, and accordingly, the opening button 42 is in the pop-up state.

After energizing and closing the switch, the winding 17 of the electromagnetic driver 1 is de-energized:

As shown in Figure 37, the iron core spring 13 provides a resilience force for the linkage 21, so that the linkage 21 rotates in the second clockwise direction (counterclockwise), and drives the moving iron core 11 to translate to the left, and the moving iron core 11 and the linkage 21 restore the driving stop position and the linkage stop position; during the counterclockwise rotation of the linkage part 21, the side of the movable part 24 facing away from the working surface 243 is attached to the blocking section 414 of the closing button 41 in the closing state. 414 has moved to the right (first direction) relative to the opening state, so the movable part 24 finally rotates to the second active position; during the counterclockwise rotation of the linkage part 21, the movable part boss 242 of the movable part 24 is in the limit position. Sliding over the second limiting surface A3 of part A, and at the same time make the limiting part A rotate in the second clockwise direction (counterclockwise direction). After the two are out of contact, they return to The position of the limiter 43 in the opening state.

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

[Automatic opening]

When the circuit breaker in the closed state is automatically opened, the winding 17 of the electromagnetic drive part 1 is first energized:

As shown in Figure 38, the electromagnetic driver 1 starts after the winding 17 is energized, and the moving iron core 11 moves from the driving stop position to the right (first direction) to the driving actuation position under the action of electromagnetic force, driving the linkage 21 from the linkage The stop position rotates clockwise to the linked actuation position; during the rotation process of the linkage 21, the side of the movable part 24 away from the working surface 243 keeps in contact with the blocking section 414, and the movable part boss 242 of the movable part 24 is on the stopper A Under the guidance of the first limiting surface A4 of the moving part 24, it moves to the right (first direction) and rotates clockwise; 39 ), and then drive the opening button 42 to move from the pop-up state to the right (first direction) to the pressed state to realize the opening.

After the switch is turned on, the winding 17 of the electromagnetic driver 1 is de-energized, and the circuit breaker returns to the switch-off state shown in FIG. 34 .

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (17)

1. A circuit breaker, characterized in that: comprising: base (5); The static contact (62) is fixedly arranged in the base (5); The moving contact (61) is movable and arranged in the base (5); An operating mechanism (6), connected to the moving contact (61) and able to drive the moving contact (61) to contact or move away from the static contact (62) to complete closing or opening; Closing and opening assembly (4), which is moved and arranged in the base (5), and the closing and opening assembly (4) is connected with the operating mechanism (6) for driving the operating mechanism (6) to realize the operation of the circuit breaker. opening and closing; The driving part is arranged in the base (5), the driving part is provided with a driving part near the closing and opening assembly (4), and the closing and opening assembly (4) is provided with an abutment part, so The driving part cooperates with the abutting part to drive the closing and opening assembly (4) to move in the base (5). 2. The circuit breaker according to claim 1, characterized in that: the closing and opening assembly (4) includes a closing button (41), an opening button (42), and a rotating shaft (46); The abutting portion includes a first abutting surface (415) on the closing button (41) and a second abutting surface (424) on the opening button (42); The closing button (41) is also provided with a closing button head (4110), and the closing button head (4110) is used to manually press the closing button (41) along the first direction; The opening button (42) is also provided with an opening button head (4210), and the opening button head (4210) is used to manually press the opening button (42) along the first direction. ; The closing button (41) and the opening button (42) are connected to the operating mechanism (6) through the rotating shaft (46) to drive the operating mechanism (6) to open and close. 3. The circuit breaker according to claim 2, wherein the driving member comprises: An electromagnetic driver (1), arranged in the base (5); The transmission assembly (2) is movably connected to the electromagnetic driver (1), and the electromagnetic driver (1) drives the transmission assembly (2) to drive the closing button (41) or the opening button (42 ) moves within the base (5); the transmission assembly (2) includes a first active position and a second active position, and cooperates with the first abutting surface (415) when in the first active position, The electromagnetic driver (1) can drive the transmission assembly (2) to contact and move the closing button (41); The joint surface (424) cooperates, and the electromagnetic driving member (1) can drive the transmission assembly (2) to contact and move the opening button (42). 4. The circuit breaker according to claim 3, characterized in that: the transmission assembly (2) comprises a linkage part (21) and a movable part (24); One end of the linkage (21) is rotatably connected to the electromagnetic drive (1), and the electromagnetic drive (1) drives the linkage (21) to rotate; The movable part (24) is rotatably connected to the other end of the linkage part (21), including a first active position and a second active position; The movable part (24) cooperates with the first abutment surface (415) when it is in the first movable position, and drives the closing button (41) to move along the first direction to realize closing; the movable When the member (24) is in the second active position, it cooperates with the second abutment surface (424) to drive the opening button (42) to move along the first direction to realize opening. 5. The circuit breaker according to claim 4, characterized in that: on the closing button (41), there is also a gap between the closing button head (4110) and the first abutment surface (415). There is a blocking section (414); the blocking section (414) can interfere with the movable part (24) when the closing button (41) is pressed, so that the movable part (24) is located at the second Active position: the blocking section (414) avoids the movable part (24) when the closing button (41) pops out, so that the movable part (24) is in the first active position. 6. The circuit breaker according to claim 5, characterized in that: the closing button (41) comprises one section of closing button (4111), two sections of closing button (4112) and three sections of closing button ( 4113); One section of the closing button (4111) and the opening button (42) are arranged side by side on the same side of the moving plane of the movable part (24); the head of the closing button (4110) is the The unconnected end of one section (4111); the blocking section (414) is set on the closing button section (4111) on the side close to the movable part (24); The second section of the closing button (4112) extends from the other end of the first section of the closing button (4111) to the moving plane of the movable member (24), and the first abutting surface (415) is located at the The second section of the button (4112); The three sections (4113) of the closing button are parallel to the one section (4111) of the closing button. 7. The circuit breaker according to claim 4, characterized in that: the transmission assembly (2) further comprises a first elastic member ( 23), the first elastic member (23) makes the movable member (24) have a tendency to rotate to the first active position when it is in the second active position; The electromagnetic driver (1) is provided with a reset member, so that the movable member (24) can be reset to the second active position after the closing button (41) is pressed, and the movable member ( 24) It can be reset to the first active position after the opening button (42) is pressed. 8. The circuit breaker according to claim 4, characterized in that: the moving path of the movable member (24) in the first active position is the first active path; the movable member (24) in the The moving path at the second active position is the second active path; The closing and opening assembly (4) also includes a limiter (43) arranged between the first active path and the second active path; The movable part (24) has a movable part boss (242) extending out of the moving plane; The movable member boss (242) can abut the limiting member (43) and contact the second abutting surface (424) when the movable member (24) moves along the second moving path . 9. The circuit breaker according to claim 8, characterized in that: the closing and opening assembly (4) further comprises a fourth elastic member (44), the fourth elastic member (44) is connected to the limit member (43), so that the limiting member (43) maintains a tendency to rotate toward the first moving path. 10. The circuit breaker according to claim 8, characterized in that: the opening button (42) is provided with an abutment platform (427) extending to the moving plane of the movable part (24), and the second The abutment surface (424) is located on the abutment platform (427), and the part of the abutment platform (427) facing the limiter (43) is inset to form a third stopper surface (4214) to accommodate the limiter. Position piece (43) and limit the rotation range of position limiting piece (43). 11. The circuit breaker according to claim 2, characterized in that: the closing and opening assembly (4) further comprises an intermediate spacer (48) and a fifth elastic member (47); There are protrusions on the base (5); The middle spacer (48) has a bottom hole (481), and the bottom hole (481) is matched with the raised shaft hole of the base (5); The rotating shaft (46) has a rotating shaft hole (466), and the rotating shaft hole (466) is matched with the raised shaft hole of the base (5); The intermediate spacer (48), the fifth elastic member (47) and the rotating shaft (46) are sequentially sleeved on the base (5) through the protrusions of the base (5); The fifth elastic member (47) makes the rotating shaft (46) have a tendency to drive the operating mechanism (6) to open. 12. The circuit breaker according to claim 2, characterized in that: the closing and opening assembly (4) further comprises a first connecting rod (451), a second connecting rod (452), a third connecting rod (453) ; The first connecting rod (451) connects the closing button (41) and the rotating shaft (46); The second connecting rod (452) connects the opening button (42) and the rotating shaft (46); The third connecting rod (453) connects the rotating shaft (46) and the operating mechanism (6). 13. The circuit breaker according to any one of claims 2-12, characterized in that: the closing button (41) has a first guide (412), and the opening button (42) has a second guide part (422), the first guide part (412) and the second guide part (422) form an accommodating space. 14. The circuit breaker according to claim 13, characterized in that: the circuit breaker further comprises a locking assembly (3), the locking assembly (3) comprising a head partition (32) and a locking piece (34); The side wall of the head partition (32) is provided with a gap (326); The locking piece (34) is rotatably arranged in the head spacer (32), and one side of the locking piece (34) has a second boss (344), and the second boss (344) is placed The accommodating space includes a first accommodating position and a second accommodating position; Wherein, the second boss (344) is located at the first accommodating position when the switch is closed, so that the locking member (34) protrudes from the notch (326); the second boss (344) It is located at the second accommodating position when the brake is opened, so that the locking member (34) can be retracted from the notch (326). 15. The circuit breaker according to claim 14, characterized in that: the locking assembly (3) further comprises an operating member (31) and a stopper (35); The operating member (31) is rotatably arranged in the head spacer (32), including a gripping portion (311) extending outside the head spacer (32) and the inside of the spacer (32). The end portion (313) of the operating member, the gripping portion (311) is used to control the rotation of the operating member (31) between the first operating position and the second operating position; The stopper (35) is movable and arranged in the head spacer (32), and can extend or retract from the notch (326) to fix or unfix the circuit breaker; When the part (313) is in the second operating position, it can drive the stopper (35) to retract. 16. The circuit breaker according to claim 15, characterized in that: the other side of the locking member (34) away from the second boss (344) has a first boss (343); the second boss When the platform (344) is in the first accommodation position, the first boss (343) can abut and fit with the end of the operating member (313) to limit the operating member (31) to the first position. Operating position: when the second boss (344) is in the second storage position, the first boss (343) can avoid the end of the operating member (313) so that the operating member (31) can Rotate to said second operating position. 17. The circuit breaker according to claim 15, the closing button (41) has a stepped surface (413), and the stepped surface (413) can support the stopper (35) when the stopper (35) is retracted. moving parts (35).

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