CN114999863A - Hybrid switch for realizing switching-on and switching-off of circuit breaker and circuit breaker - Google Patents

Abstract

The invention discloses a hybrid switch for realizing switching on and switching off of a circuit breaker and the circuit breaker, and relates to the technical field of switching appliances. The hybrid switch comprises an electronic switch, a solid-state circuit switch and a mechanical switch, wherein the solid-state circuit switch and the mechanical switch are connected in series in a circuit relationship, the mechanical switch comprises at least one operating part, a fixed contact and a movable contact, the fixed contact is fixed relative to a shell of the circuit breaker, the movable contact is connected with the operating part, the fixed contact is arranged opposite to the movable contact, the operating part is movably arranged on the shell, a trigger part is arranged on the operating part, and the trigger part can trigger the electronic switch to enable the solid-state circuit switch to be switched on and off. According to the hybrid switch provided by the invention, the position relation between the trigger part and the electronic switch and the motion track of the operating part are utilized, so that the electronic switch is triggered by the trigger part after a certain time delay after the mechanical switch is switched on to conduct the solid-state circuit switch, and the mechanical switch is switched off after the solid-state circuit switch is switched off after a certain time delay, thereby ensuring the real arc-free breaking and the use safety.

Description

Hybrid switch for realizing switching-on and switching-off of circuit breaker and circuit breaker

Technical Field

The invention relates to the technical field of switching devices, in particular to a hybrid switch for realizing switching on and off of a circuit breaker and the circuit breaker.

Background

The circuit breaker is a common electrical appliance protection device, has the functions of short-circuit protection and overload protection, and can quickly cut off fault current when overload and short-circuit faults occur to a power distribution system so as to protect the power distribution system and electrical equipment.

With the continuous development and innovation of the circuit breaker technology, an electronic and mechanical combined hybrid switch also appears, which comprises a quick mechanical switch, a full-control type solid-state switch module, a thyristor module and a lightning arrester, wherein the quick mechanical switch is connected with the full-control type solid-state switch module in series and then is respectively connected with the thyristor module and the lightning arrester in parallel, and the reliable breaking of fault current is realized through the combination of the quick mechanical switch, the full-control type solid-state switch and the thyristor. The fast mechanical switch is subjected to switching-off under the working condition of zero current and low voltage after the inherent switching-off delay, although the structural design of the hybrid switch can reduce the ablation of electric arcs on moving and static contacts, the switching-off sequence is assumed by only depending on time difference, the non-arc switching-off can not be ensured, the electric arcs still exist, and meanwhile, in the process that the breaker is installed in the cabinet, if a bus bar in the cabinet is electrified, when the breaker is in a switching-on state, a small electric arc can be generated between a wiring terminal of the breaker and the bus bar, so that safety accidents are easily caused.

Disclosure of Invention

In view of this, the present invention aims to overcome the defects in the prior art, and aims to provide a hybrid switch for implementing the opening and closing of a circuit breaker, which can prevent the generation of electric arcs and is safe and reliable.

The present invention provides:

a hybrid switch for realizing circuit breaker divide-shut brake, this hybrid switch for realizing circuit breaker divide-shut brake includes: an electronic switch, a solid state circuit switch and a mechanical switch in series relation in circuit relation;

the mechanical switch comprises at least one operating part, a fixed contact fixed relative to a shell of the circuit breaker and a movable contact connected with the operating part, wherein the movable contact is arranged opposite to the fixed contact, the operating part is movably arranged on the shell, and a trigger part is arranged on the operating part;

the trigger piece can trigger the electronic switch to switch on and off the solid-state circuit switch;

the operating piece is driven to move for a first preset distance along a first direction, and the moving contact is connected with the fixed contact; continuously driving the operating element to move for a second preset distance along the first direction, and moving the triggering element to a preset position to trigger the electronic switch to conduct the solid-state circuit switch so as to realize the switching-on of the breaker; or driving the operating element to move the second preset distance along a second direction, the trigger element is far away from the electronic switch to disconnect the solid-state circuit switch, the operating element is continuously driven to move the first preset distance along the second direction, the moving contact is separated from the fixed contact to realize the opening of the circuit breaker, and the second direction is opposite to the first direction.

In addition, the hybrid switch for realizing the opening and closing of the circuit breaker can also have the following additional technical characteristics:

in some embodiments of the invention, the operating member comprises:

the drawing button is arranged on the shell of the circuit breaker in a sliding manner;

the linkage mechanism is rotatably arranged in the shell, one end of the linkage mechanism is connected with the drawing button, and the other end of the linkage mechanism is connected with the moving contact;

wherein, the trigger piece is arranged on the drawing button or the linkage mechanism.

In some embodiments of the invention, the linkage comprises:

the rotating structure is rotatably arranged on the shell and is connected with the moving contact;

one end of the first connecting rod is connected with the drawing button, and the other end of the first connecting rod is connected with the rotating structure;

wherein, the trigger piece is arranged on the drawing button or the rotating structure.

In some embodiments of the invention, the rotating structure comprises:

the rotating plate is rotatably arranged on the shell and is connected with the first connecting rod;

the contact support and the rotating plate are arranged at intervals along the first direction and are rotatably arranged on the shell, and the moving contact is arranged on the contact support;

one end of the second connecting rod is connected with the rotating plate, and the other end of the second connecting rod is connected with the contact support;

wherein, the trigger piece is arranged on the drawing button or the rotating plate.

In some embodiments of the present invention, when the trigger is disposed on the pull button, a strip-shaped groove is disposed on the pull button, and an end of the first link connected to the pull button is located in the strip-shaped groove.

In some embodiments of the invention, the length of the strip-shaped groove in the first direction or the second direction is equal to the second preset distance.

In some embodiments of the invention, the operating member comprises:

the rotary button is rotatably arranged on a shell of the circuit breaker;

the linkage assembly is rotatably arranged in the shell, one end of the linkage assembly is connected with the rotary button, and the other end of the linkage assembly is connected with the moving contact;

wherein the trigger is disposed on the rotary button.

In some embodiments of the present invention, the electronic switch is a micro switch, and when the trigger moves to the preset position, the trigger abuts against an action reed of the micro switch to turn on the micro switch.

In some embodiments of the present invention, the electronic switch is a hall switch, the trigger is a magnet, and when the magnet moves to the preset position, the magnet triggers the hall switch to be turned on.

In some embodiments of the present invention, the electronic switch is a photoelectric switch, and the trigger is a shutter, and when the shutter moves to the preset position, the shutter triggers the photoelectric switch to be turned on.

The invention also provides a circuit breaker, which comprises the hybrid switch for realizing the opening and closing of the circuit breaker in any embodiment.

Further, the circuit breaker is a solid state circuit breaker.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a hybrid switch for realizing switching-on and switching-off of a circuit breaker, which comprises a mechanical switch and an electronic switch which are connected in series, wherein the mechanical switch comprises an operating part which is slidably arranged on a shell of the circuit breaker, a trigger part for triggering the electronic switch to be switched on and switched off is arranged on the operating part, and the connection and the separation of a moving contact and a static contact are realized under the action of the movement of the operating part so as to realize the switching-on and the switching-off of the mechanical switch. Meanwhile, the on-off of the electronic switch is realized under the action that the trigger part moves along with the operating part.

When the breaker is switched on, the driving operation part moves for a first preset distance along the first direction, the moving contact is connected with the fixed contact, at the moment, the electronic switch is still in a disconnected state, the driving operation part continues to move for a second preset distance along the first direction, and the trigger part moves to a preset position to trigger the electronic switch so as to switch on the solid-state circuit switch, so that the breaker is switched on, namely, the mechanical switch is switched on firstly, the electronic switch is switched on later, and finally the breaker is switched on. Therefore, the electric arc generation at the moving contact and the static contact caused by the simultaneous conduction of the mechanical switch and the electronic switch is avoided. The circuit breaker can realize real non-arc breaking, thereby prolonging the service life of the circuit breaker and ensuring the use safety.

When the circuit breaker is opened, the driving operation part moves a second preset distance along a second direction opposite to the first direction, the trigger part is far away from the preset position to trigger the electronic switch to disconnect the solid-state circuit switch, so that the circuit breaker is opened, the driving operation part continues to move the first preset distance along the second direction, the moving contact is separated from the static contact, and namely, when the circuit breaker is opened, the electronic switch is disconnected before the mechanical switch. According to the hybrid switch provided by the invention, the mechanical switch is driven to be switched on after being switched on for a period of time by utilizing the position relation between the trigger part and the electronic switch and the motion track of the operating part, and the mechanical switch is switched off after being switched off for a period of time after the solid-state circuit switch is switched off, so that the mechanical switch is in a zero-voltage zero-current state when being switched off, the real arc-free breaking is ensured to be realized, the service life of the circuit breaker is prolonged, and the use safety is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic partial structural diagram of a circuit breaker used in a hybrid switch for implementing opening and closing of the circuit breaker according to some embodiments of the present invention;

FIG. 2 is an enlarged schematic view of part A of FIG. 1;

FIG. 3 is a schematic diagram illustrating the mechanical switch being first closed when the operating element is moved a first predetermined distance in a first direction according to some embodiments of the present invention;

FIG. 4 is a schematic diagram illustrating a post-closing operation of the electronic switch of FIG. 3 when the operating member continues to move in the first direction for a second predetermined distance;

FIG. 5 is a schematic view of the electronic switch being turned off when the operating member is moved a second predetermined distance in a second direction according to some embodiments of the present invention;

FIG. 6 is a schematic diagram showing the rear opening of the mechanical switch in FIG. 5 when the operating member continues to move in the second direction by the first predetermined distance;

fig. 7 is a partial schematic structural diagram of a circuit breaker using a hybrid switch for implementing opening and closing of the circuit breaker according to another embodiment of the present invention;

fig. 8 shows a schematic circuit diagram of a hybrid switch for implementing circuit breaker switching on and off according to some embodiments of the present invention.

Description of the main element symbols:

100-hybrid switch; 10-a mechanical switch; 11-a stationary contact; 12-a moving contact; 13-an operating member; 131-a trigger; 132-pull button; 1321-strip groove; 133-a linkage mechanism; 1331-a rotating structure; 13311-rotating the plate; 13312-a contact holder; 13313-a second link; 1332-a first link; 134-rotating button; 135-a linkage assembly; 20-an electronic switch; 30-solid state circuit switches; 1000-circuit breaker; 200-shell.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Examples

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a hybrid switch 100 for implementing opening and closing of a circuit breaker 1000, which is mainly used for implementing closing and opening of a solid-state circuit breaker 1000. The hybrid switch 100 includes an electronic switch 20, a solid state circuit switch 30 and a mechanical switch 10 in series circuit relationship.

The mechanical switch 10 includes at least one operating element 13, a stationary contact 11 fixed with respect to the housing 200 of the circuit breaker 1000, and a movable contact 12 connected to the operating element 13. The moving contact 12 is arranged opposite to the fixed contact 11, so that the fixed contact 11 is located within the range of the moving track of the moving contact 12, and the moving contact 12 and the fixed contact 11 are connected or separated. The operation element 13 is movably disposed on the housing 200, and a trigger 131 is disposed on the operation element 13, and the trigger 131 can trigger the electronic switch 20 to turn on or off the solid-state circuit switch 30. Referring to fig. 3 and 4, in particular, when the operating element 13 is driven to move a first preset distance along a first direction, the moving contact 12 is engaged with the stationary contact 11; and continuing to drive the operating element 13 to move a second preset distance along the first direction, and moving the triggering element 131 to a preset position to trigger the electronic switch 20 to turn on the solid-state circuit switch 30, so as to close the circuit breaker 1000.

Referring to fig. 5 and 6, the operating element 13 is driven to move the second preset distance along a second direction, the triggering element 131 is far away from the electronic switch 20 to turn off the solid-state circuit switch 30, at this time, the circuit breaker 1000 realizes opening, the operating element 13 is continuously driven to move the first preset distance along the second direction, the movable contact 12 is separated from the fixed contact 11, and the second direction is opposite to the first direction.

For example, the first direction is that the operating element 13 moves from left to right, and the second direction is that the operating element 13 moves from right to left. The first preset distance and the second preset distance may be designed according to actual needs, and in this implementation, the first preset distance and the second preset distance are not specifically limited.

In the hybrid switch 100 for implementing switching on and off of the circuit breaker 1000 according to the embodiment of the invention, in a use process, when the circuit breaker 1000 performs switching on, the operating element 13 is driven to move a first preset distance along the first direction, the moving contact 12 is connected with the static contact 11, at this time, the electronic switch 20 is still in a disconnected state, the operating element 13 is continuously driven to move a second preset distance along the first direction, the trigger 131 moves to a preset position to trigger the electronic switch 20 to conduct the solid-state circuit switch 30, so that the circuit breaker 1000 is switched on, that is, the mechanical switch 10 conducts switching on first, the solid-state circuit switch 30 conducts after the electronic switch 20, and finally the circuit breaker 1000 is switched on. Therefore, when the mechanical switch 10 is switched on, the switching state is in a zero-voltage zero-current state, and the generation of electric arcs at the moving contact 12 and the static contact 11 caused by the simultaneous conduction of the mechanical switch 10 and the electronic switch 20 is avoided.

When the circuit breaker 1000 is opened, the operating element 13 is driven to move a second preset distance along a second direction opposite to the first direction, and the trigger 131 is far away from the electronic switch 20 to open the solid-state circuit switch 30, so that the circuit breaker 1000 is opened; the operating element 13 is continuously driven to move for a first preset distance along the second direction, and the moving contact 12 is separated from the fixed contact 11, so that when the circuit breaker 1000 is opened, the electronic switch 20 is disconnected before the mechanical switch 10, and the mechanical switch 10 is in a zero-voltage zero-current state when being opened and closed, thereby well avoiding the generation of electric arcs.

In this embodiment, the electronic switch 20 is triggered by the trigger 131 to turn on the solid-state circuit switch 30 by delaying a time after the mechanical switch 10 is switched on by the position relationship between the trigger 131 and the electronic switch 20 and the motion track of the operating element 13, the delay is realized by the motion track of the operating element 13, rather than by a time difference delay, so that the solid-state circuit switch 30 is turned off after the electronic switch 20 is triggered by the trigger 131, and thus, the mechanical switch 10 can be switched off by delaying a time, that is, after the solid-state circuit switch 30, the mechanical switch 10 is in a power-off state when being switched on, thereby ensuring that real arc-free breaking is realized, prolonging the service life of the circuit breaker 1000, and ensuring safety in use.

As shown in fig. 1 and 3, in some embodiments of the present invention, optionally, the operating member 13 includes a pull button 132 and a linkage 133.

Specifically, the drawing button 132 is slidably disposed in the housing 200 of the circuit breaker 1000 along the first direction and the second direction, so that the drawing button 132 reciprocally slides in the first direction and the second direction with respect to the housing 200.

The linkage 133 is rotatably disposed in the housing 200, and one end of the linkage 133 is connected to the pull button 132, and the other end is connected to the movable contact 12. Thus, when the pull button 132 slides along the first direction for a first preset distance, the linkage mechanism 133 rotates and drives the movable contact 12 to rotate, so as to combine the movable contact 12 with the fixed contact 11, and when the pull button 132 continues to slide along the first direction for a second preset distance, the linkage mechanism 133 continues to rotate, at this time, the trigger 131 reaches the preset position, and triggers the electronic switch 20 at the preset position, so that the circuit of the electronic switch 20 is turned on. When the pull button 132 slides a second preset distance along the second direction, the trigger 131 leaves the preset position to trigger the electronic switch 20 to be turned off, at this time, the moving contact 12 and the static contact 11 are still in a connected state, and when the pull button continues to move the first preset distance along the second direction, the moving contact 12 and the static contact 11 are separated, so that the mechanical switch 10 is turned off.

In this embodiment, the trigger 131 may be disposed on the pull button 132, and the electronic switch 20 is located in a motion track of the trigger 131, so that the trigger 131 can trigger on/off of the electronic switch 20. Of course, the triggering member 131 may also be disposed on the linkage 133, and at this time, the electronic switch 20 is still located in the motion track of the triggering member 131, so as to enable the triggered member 131 to be triggered.

Further, the link mechanism 133 includes a rotating structure 1331 and a first link 1332.

The rotating structure 1331 is rotatably disposed on the housing 200 and connected to the movable contact 12, one end of the first connecting rod 1332 is connected to the drawing button 132, and the other end is connected to the rotating structure 1331.

Specifically, when the pull button 132 slides along the first direction for a first preset distance, the first link 1332 drives the rotating structure 1331 to rotate clockwise and drive the movable contact 12 to rotate, so as to combine the movable contact 12 with the stationary contact 11, and when the pull button continues to slide along the first direction for a second preset distance, the first link 1332 drives the rotating structure 1331 to continue to rotate, and at this time, the trigger 131 reaches the preset position, and triggers the electronic switch 20 at the preset position, so that the circuit of the electronic switch 20 is turned on. When the pull button 132 slides a second preset distance along the second direction, the trigger 131 leaves the preset position to trigger the electronic switch 20 to be turned off, at this time, the movable contact 12 and the fixed contact 11 are still in a connected state, and when the pull button continues to move the first preset distance along the second direction, the first connection rod 1332 drives the rotating structure 1331 to rotate counterclockwise so as to separate the movable contact 12 from the fixed contact 11, thereby implementing the turning off of the mechanical switch 10.

Optionally, the trigger 131 is disposed on the pulling button 132, and the electronic switch 20 is located in a motion track of the trigger 131, so that the trigger 131 can trigger on and off of the electronic switch 20. Of course, the trigger 131 can also be disposed on the rotating structure 1331, and at this time, the electronic switch 20 is still located in the motion track of the trigger 131, so as to enable the triggered of the triggered piece 131.

In this embodiment, the first connecting rod 1332 and the rotating structure 1331 are provided, so that the movement structure is simple and the operation is convenient.

As shown in fig. 3, further, the rotating structure 1331 includes a rotating plate 13311, a contact holder 13312 and a second link 13313.

The rotating plate 13311 is rotatably disposed on the housing 200 and connected to the first connecting rod 1332. Specifically, the rotating plate 13311 is rotatably connected to the housing 200 through a rotating shaft. The first connecting rod and the second connecting rod are both in a U-shaped rod shape, the rotating plate 13311 is respectively provided with a first connecting hole and a second connecting hole which are matched with the first connecting rod 1332 and the second connecting rod 13313, one end of the first connecting rod 1332 is connected with the drawing button 132, and the other end of the first connecting rod 1332 is inserted into the first connecting hole.

One end of the second link 13313 is inserted into the second connecting hole so that the second link 13313 is connected to the rotary plate 13311, and the other end is connected to the contact holder 13312. The contact holder 13312 and the rotating plate 13311 are arranged at an interval along the first direction, and are rotatably arranged on the housing 200, and the contact holder 13312 is rotatably connected with the housing 200 through a pin shaft. The movable contacts 12 are disposed on the contact supports 13312.

As shown in fig. 3 and 4, taking the first direction from left to right and the second direction from right to left, the trigger 131 is disposed on the pull button 132 as an example, the pull button 132 slides to the right for a first preset distance, the first link 1332 drives the rotating plate 13311 to rotate clockwise and drives the support of the contact 12 to rotate, the movable contact 12 rotates along with the support of the contact 13312 to combine the movable contact 12 with the fixed contact 11, when the pull button 132 continues to be pushed to the right for a second preset distance, at this time, the first link 1332 drives the rotating plate 13311 to continue to rotate clockwise, at this time, the trigger 131 reaches a preset position, and triggers the electronic switch 20 at the preset position to conduct the circuit of the electronic switch 20.

Of course, in other embodiments, the triggering member 131 may also be disposed on the rotating plate 13311, and in this case, the electronic switch 20 is disposed below the rotating plate 13311, so that the triggering member 131 triggers the same.

In this embodiment, the layout of the first link 1332, the rotating plate 13311, the second link 13313, and the contact holder 13312 can reduce the space occupied by the linkage mechanism 133 for the strip-shaped solid-state circuit breaker 1000.

It should be understood that the above-mentioned linkage mechanism 133 can also adopt other linkage structures in the mechanical switch of the circuit breaker, and is not limited to the linkage mechanism 133 in the embodiment.

As shown in fig. 1 and 2, in the above embodiment of the present invention, when the trigger 131 is disposed on the pull button 132, a strip-shaped slot 1321 is disposed on the pull button 132, and one end of the first link 1332 connected to the pull button 132 is located in the strip-shaped slot 1321. Thus, when the drawing button 132 moves in the first direction (rightward), the left groove wall of the groove 1321 abuts on the first link 1332, and the first link 1332 is pushed to move. When the circuit breaker 1000 is switched from the closing state to the opening state, that is, when the pull button 132 moves in the second direction (leftward), the first link 1332 slides relatively in the strip 1321 without rotating the rotating plate 13311, so that the trigger 131 leaves the predetermined position to trigger the electronic switch 20 to be turned off. Therefore, when the breaker 1000 is in a closed state, if the breaker 1000 is pulled out by misoperation, the electronic switch 20 is switched off, so that the breaker 1000 is in an open state, and safety accidents caused by electric arcs generated by the mechanical switch 10 are avoided.

In the above embodiment of the present invention, the length of the strip groove 1321 in the first direction or the second direction is equal to the second preset distance. Thus, the pulling button 132 is moved leftward by a distance of the strip 1321 to realize that the trigger 131 leaves the preset position and triggers the electronic switch 20 to be turned off.

As shown in fig. 7, in other embodiments of the present invention, as for the option of using the pull button 132, other options may also be used, for example, the operation member 13 includes a rotation button 134 and a linkage assembly 135, the rotation button 134 is rotatably disposed on the housing 200 of the circuit breaker 1000; the linkage assembly 135 is rotatably disposed in the housing 200, and one end of the linkage assembly 135 is connected to the rotary button 134, and the other end is connected to the movable contact 12. Wherein, the trigger 131 is disposed on the rotating button 134.

In this embodiment, the rotating button 134 is rotated by a first preset distance in the counterclockwise direction, the rotating button 134 is continuously rotated by a second preset distance in the counterclockwise direction, and the triggering element 131 moves to a preset position to trigger the electronic switch 20 to turn on the solid-state circuit switch 30, so as to close the circuit breaker 1000. On the contrary, the rotating button 134 is rotated clockwise by a second preset distance, the trigger 131 is far away from the electronic switch 20 to disconnect the solid-state circuit switch 30, so as to realize the opening of the circuit breaker 1000, the rotating button 134 is continuously rotated clockwise by the first preset distance, the moving contact 12 is separated from the static contact 11, and the mechanical switch 10 is ensured to be in a zero-voltage and zero-current state when being separated.

In addition, it should be noted that the linkage assembly 135 includes a contact bracket 13312 and a second link 13313. One end of the second link 13313 is connected to the rotary button 134, and the other end is connected to the contact support 13312, and the movable contact 12 is disposed on the contact support 13312. Of course, in other embodiments, the linkage assembly 135 may also employ other linkage structures in the mechanical switch of the circuit breaker.

In some embodiments of the present invention, optionally, the electronic switch 20 is a micro switch, and when the trigger 131 moves to the preset position, the trigger 131 abuts against an action reed of the micro switch, so that the micro switch is turned on, and the closing of the circuit breaker 1000 is achieved. In addition, when the trigger 131 leaves the preset position, the trigger 131 is separated from the action reed of the micro switch, so that the micro switch is turned off.

In other embodiments of the present invention, the electronic switch 20 may also be a hall switch, and the trigger 131 is a magnet, and when the magnet moves to the preset position, the magnet triggers the hall switch to be turned on. When the operating member 13 moves a second predetermined distance in a second direction, the magnet moves away from the magnetic induction range of the hall switch, causing the hall switch to open the previous conduction path.

Of course, in other embodiments of the present invention, the electronic switch 20 may also be a photoelectric switch, and the triggering member 131 is a blocking plate, and when the blocking plate moves to the preset position, the blocking plate blocks the triggering light of the photoelectric switch, so that the blocking plate triggers the photoelectric switch to be turned on. When the operating member 13 moves a second predetermined distance in a second direction, the shutter leaves the light range of the photoelectric switch, causing the photoelectric switch to open the conducting circuit before it is turned off.

As shown in fig. 8, it should be noted that, during the process of turning on and off the solid-state circuit switch 30, a processor may also be added to control the turning on of the solid-state circuit switch 30, that is, by determining whether the trigger 131 triggers the electronic switch 20 to turn on or off at a preset position, the turning on or off of the solid-state circuit switch 30 is further controlled.

As shown in fig. 1, an embodiment of the present invention further provides a circuit breaker 1000, where the circuit breaker 1000 includes the hybrid switch 100 for implementing opening and closing of the circuit breaker 1000 in any of the above embodiments.

Specifically, the operation element 13 is slidably disposed in the housing 200 of the circuit breaker 1000, the movable contact 12 is movably disposed in the housing 200, the stationary contact 11 is directly or indirectly fixed in the housing 200, and the electronic switch 20 is located in the housing 200.

The circuit breaker 1000 provided in this embodiment includes the hybrid switch 100 in any of the above embodiments, and therefore, all the effects of the hybrid switch 100 are achieved, which is not described herein again.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (11)

1. A hybrid switch for implementing circuit breaker divide-shut brake, characterized in that, hybrid switch includes: an electronic switch (20), a solid-state circuit switch (30) and a mechanical switch (10) in series relation in the circuit relationship;

the mechanical switch (10) comprises at least one operating part (13), a static contact (11) fixed relative to a shell (200) of the circuit breaker (1000), and a moving contact (12) connected with the operating part (13), wherein the moving contact (12) is arranged opposite to the static contact (11), the operating part (13) is movably arranged on the shell (200), and the operating part (13) is provided with a trigger part (131); the trigger (131) can trigger the electronic switch (20) to switch on and off the solid-state circuit switch (30);

the operating piece (13) is driven to move a first preset distance along a first direction, and the moving contact (12) is connected with the fixed contact (11); continuing to drive the operating element (13) to move a second preset distance along the first direction, and moving the trigger element (131) to a preset position to trigger the electronic switch (20) to conduct the solid-state circuit switch (30) so as to realize the switching-on of the circuit breaker (1000); or driving the operating element (13) to move the second preset distance along a second direction, and enabling the trigger element (131) to be far away from the electronic switch (20) to open the solid-state circuit switch (30) so as to realize the opening of the breaker (1000); and continuously driving the operating piece (13) to move the first preset distance along the second direction, wherein the moving contact (12) is separated from the fixed contact (11), and the second direction is opposite to the first direction.

2. Hybrid switch for realizing circuit breaker opening and closing according to claim 1, characterized in that said operating member (13) comprises:

a pull button (132) slidably disposed in a housing (200) of the circuit breaker (1000);

the linkage mechanism (133) is rotatably arranged in the shell (200), one end of the linkage mechanism (133) is connected with the pull button (132), and the other end of the linkage mechanism (133) is connected with the moving contact (12);

wherein the trigger (131) is arranged on the pull button (132) or the linkage mechanism (133).

3. Hybrid switch for realizing circuit breaker opening and closing according to claim 2, characterized in that said linkage (133) comprises:

the rotating structure (1331) is rotatably arranged on the shell (200) and is connected with the moving contact (12);

a first connecting rod (1332), one end of the first connecting rod (1332) is connected with the drawing button (132), and the other end is connected with the rotating structure (1331);

wherein the trigger (131) is disposed on the drawing button (132) or the rotating structure (1331).

4. Hybrid switch for realizing circuit breaker opening and closing according to claim 3, characterized in that said rotating structure (1331) comprises:

a rotating plate (13311) rotatably disposed on the housing (200) and connected to the first connecting rod (1332);

the contact support (13312) and the rotating plate (13311) are arranged at intervals along the first direction and are rotatably arranged on the shell (200), and the moving contact (12) is arranged on the contact support (13312);

a second link (13313), one end of the second link (13313) being connected to the rotary plate (13311) and the other end being connected to the contact holder (13312);

wherein the trigger (131) is provided on the drawing button (132) or the rotating plate (13311).

5. The hybrid switch for realizing opening and closing of the circuit breaker according to claim 3, wherein when the trigger (131) is arranged on the drawing button (132), a strip-shaped groove (1321) is arranged on the drawing button (132), and one end of the first connecting rod (1332) connected with the drawing button (132) is located in the strip-shaped groove (1321).

6. The hybrid switch for realizing circuit breaker opening and closing according to claim 5, characterized in that the length of said strip-shaped groove (1321) along said first direction or said second direction is equal to said second preset distance.

7. Hybrid switch for realizing circuit breaker opening and closing according to claim 1, characterized in that said operating member (13) comprises:

a rotary button (134) rotatably provided in a case (200) of the circuit breaker (1000);

the linkage assembly (135) is rotatably arranged in the shell (200), one end of the linkage assembly (135) is connected with the rotary button (134), and the other end of the linkage assembly (135) is connected with the moving contact (12);

wherein the trigger (131) is disposed on the rotary button (134).

8. The hybrid switch for realizing circuit breaker opening and closing according to any one of claims 1 to 7, characterized in that the electronic switch (20) is a microswitch, and when the trigger (131) moves to the preset position, the trigger (131) abuts against an action reed of the microswitch so as to enable the microswitch to be turned on.

9. The hybrid switch for realizing circuit breaker opening and closing according to any one of claims 1 to 7, characterized in that the electronic switch (20) is a Hall switch, the trigger (131) is a magnet, and when the magnet moves to the preset position, the magnet triggers the Hall switch to conduct.

10. The hybrid switch for realizing breaker switching-on and switching-off according to any one of claims 1 to 7, characterized in that the electronic switch (20) is a photoelectric switch, and the trigger member (131) is a baffle plate, and when the baffle plate moves to the preset position, the baffle plate triggers the photoelectric switch to be conducted.

11. A circuit breaker, characterized by comprising a hybrid switch for realizing circuit breaker opening and closing according to any one of claims 1 to 10.

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