Energy release system, circuit breaker and switchgear cabinet

Abstract

The present invention relates to an energy release system, comprising: a guide plate, which is set to be fixed and immovable, and has a wavy guide surface provided thereon; a slave switch, which has a tripping portion, a closing portion and a pivot connection portion, and is capable of rotating around a pivot; and an actuating plate, the first end of which is fixedly connected to the slave switch, and the second end of which is set to be capable of sliding along the wavy guide surface during the moving-out process, so as to drive the first end to perform a wavy motion and drive the slave switch to pivot; wherein the slave switch is set such that when rotating in a first direction, the tripping portion will drive the tripping half shaft of the circuit breaker to perform a tripping operation, and when rotating around the pivot in a second direction, the closing portion will drive the closing half shaft of the circuit breaker to perform a closing operation, and wherein the wavy guide surface comprises at least three successive inclined wave surfaces. The present invention also relates to a circuit breaker, which comprises such an energy release system. The present invention also relates to a switchgear cabinet, which comprises such a circuit breaker.

Description

Technical Field

[0001] The present invention relates to an energy release system for releasing the energy of a closing energy storage spring of a circuit breaker during a process of moving the circuit breaker from a test position in a switch cabinet along a moving-out direction to outside the switch cabinet. The present invention also relates to a circuit breaker including such an energy release system and a switch cabinet including the circuit breaker. Background Art

[0002] When the circuit breaker currently on the market is moved from the test position in the switch cabinet to the outside of the switch cabinet for maintenance and other operations, the energy in the closing energy storage spring of the circuit breaker may not be completely released, so that there is still residual energy in the closing energy storage spring. The residual energy may cause the closing action of the circuit breaker, which may pose a certain hidden danger to the personal safety of the operator.

[0003] Therefore, an energy release system is needed, which can substantially completely release the energy of the closing energy storage spring of the circuit breaker during the process of moving the circuit breaker out of the switch cabinet from the test position in the switch cabinet along the moving direction. Summary of the invention

[0004] To this end, according to a first aspect of the present invention, the present invention provides an energy release system, which is used to release the energy of the closing energy storage spring of the circuit breaker during the process of moving the circuit breaker from a test position in the switch cabinet along a moving direction to outside the switch cabinet, wherein the energy release system comprises:

[0005] The guide plate is arranged to be fixed and immovable, and a wavy guide surface is arranged on the guide plate.

[0006] A driven switch has an opening part, a closing part and a pivot connection part, and can rotate around a pivot fixed relative to the circuit breaker through its pivot connection part, and

[0007] an actuating plate having a first end and an opposite second end, wherein the first end is fixedly connected to the driven switch in an offset manner from the pivot connection portion of the driven switch, and the second end is configured to be able to slide along the wavy guide surface during the removal process, thereby driving the first end to perform an undulating motion and driving the driven switch to pivot,

[0008] Wherein, the driven switch is configured such that when the driven switch rotates in a first direction around the pivot, the opening portion drives the opening half-shaft of the circuit breaker to perform an opening operation, and when the driven switch rotates in a second direction opposite to the first direction around the pivot, the closing portion drives the closing half-shaft of the circuit breaker to perform a closing operation, and

[0009] Wherein, the wavy guiding surface includes at least three successive inclined wave surfaces such that during the removal process, the circuit breaker can successively experience at least a first opening position, an intermediate closing position, and a second opening position.

[0010] According to some embodiments, the at least three inclined wave surfaces include a first inclined wave surface, a second inclined wave surface, and a third inclined wave surface.

[0011] Wherein, the first inclined wave surface and the third inclined wave surface are inclined in a first inclination direction, the second inclined wave surface is inclined in a second inclination direction intersecting the first inclination direction, and

[0012] Wherein, during the removal process, at the end of the first inclined wave surface, the circuit breaker experiences the first opening position, at the end of the second inclined wave surface, the circuit breaker experiences the intermediate closing position, and at the end of the third inclined wave surface, the circuit breaker experiences the second opening position.

[0013] According to some embodiments, the closing portion and the opening portion of the slave switch are respectively in the form of a closing arm and an opening arm extending from the pivot connection portion.

[0014] According to some embodiments, the first end of the actuating plate is fixedly connected to a first connecting arm extending from the pivot connection portion of the slave switch, and the first connecting arm is separately arranged from the closing arm and the opening arm.

[0015] According to some embodiments, the first end of the actuating plate is fixedly connected to a second connecting arm extending from the opening arm or the closing arm.

[0016] According to some embodiments, a guiding shaft for sliding on the wavy guiding surface is provided at the second end of the actuating plate, and the guiding shaft passes through a first guiding groove provided in a slot plate fixedly installed relative to the circuit breaker, and the extending direction of the first guiding groove is perpendicular to the removal direction, such that when the guiding shaft slides along the wavy guiding surface, the guiding shaft moves along the first guiding groove.

[0017] According to some embodiments, a bent plate fixedly connected to the guiding shaft is further provided at the second end of the braking plate, the bent plate is arranged parallel to the slot plate and abuts against the slot plate, a second guiding groove extending parallel to the first guiding groove is provided in the bent plate, and the energy release system further includes at least one guiding stopper, the at least one guiding stopper includes a guiding column and a guiding cover fixedly connected to each other, the guiding column passes through the second guiding groove and is fixed to the slot plate, and the width of the guiding cover is set to be greater than the width of the second guiding groove, so that the bent plate is between the guiding cover and the slot plate.

[0018] According to some embodiments, the energy release system further includes a first reset elastic member and a second reset elastic member disposed parallel to the extending direction of the first guiding groove. The first ends of the first reset elastic member and the second reset elastic member are fixed on a convex portion fixedly disposed relative to the groove plate, and the second ends of the first reset elastic member and the second reset elastic member are respectively fixed to two ends of the bending plate.

[0019] According to some embodiments, the convex portion is arranged to pass through the second guiding groove.

[0020] According to some embodiments, the slave switch is made of a plastic material.

[0021] According to some embodiments, the guiding shaft and the bending plate are separate components fixedly connected together.

[0022] According to some embodiments, the guiding shaft and the bending plate are integrally formed.

[0023] According to a second aspect of the present invention, a circuit breaker is provided, which includes the energy release system according to the present invention.

[0024] According to a third aspect of the present invention, a switch cabinet is provided, which includes the circuit breaker according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0026] Figure 1 is a three-dimensional schematic view of a part of the energy release system according to the present invention connected to a circuit breaker;

[0027] Figure 2 is a plan view of a guiding plate of the energy release system according to the present invention;

[0028] Figure 3 is a three-dimensional schematic view of a part of a circuit breaker equipped with the energy release system according to the present invention, particularly showing its closing energy storage spring; and

[0029] Figure 4 is a schematic diagram showing the interaction between the energy release system according to the present invention and the closing half shaft and the opening half shaft of the circuit breaker.

[0030] LIST OF REFERENCE NUMERALS

[0031] 10 Guide plate

[0032] 11 Wavy guide surface

[0033] 12 Guide path

[0034] 13 Upper plate

[0035] 14 Lower plate

[0036] 111 First inclined wave surface

[0037] 112 Second inclined wave surface

[0038] 113 Third inclined wave surface

[0039] 20 Driven switch

[0040] 21 Closing part

[0041] 22 Opening part

[0042] 23 Pivotal connection part

[0043] 24 Pivot

[0044] 25 First connecting arm

[0045] 26 Second connecting arm

[0046] 30 Actuating plate

[0047] 31 First end

[0048] 32 Second end

[0049] 33 Guide shaft

[0050] 34 Bending plate

[0051] 341, 342 Two ends of the bending plate 34

[0052] 35 Second guide groove

[0053] 40 Groove plate

[0054] 41 First guide groove

[0055] 42 Guide stop

[0056] 421 Guide cover

[0057] 51 First reset elastic member

[0058] 52 Second reset elastic member

[0059] 53 Protrusion

[0060] 2 Circuit breaker

[0061] 201 Closing energy storage spring

[0062] 202 Mounting plate

[0063] 203 Tripping half shaft

[0064] 204 Closing half shaft Detailed implementation manners

[0065] Next, with reference to the drawings, an energy release system according to an embodiment of the present disclosure will be described in detail. The energy release system is used to release the energy of the closing energy storage spring of a circuit breaker during the process of moving the circuit breaker out of the test position in a switchgear cabinet in the removal direction and out of the switchgear cabinet. To make the purpose, technical solutions, and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure.

[0066] Therefore, the following detailed description of the embodiments of the present disclosure provided in conjunction with the drawings is not intended to limit the scope of the present disclosure claimed, but merely represents selected embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts fall within the scope of protection of the present disclosure.

[0067] Unless otherwise defined in the context, the singular forms include the plural forms. Throughout the specification, the terms "including", "having", etc. are used herein to specify the presence of the described features, numbers, steps, operations, elements, components, or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0068] In addition, even though ordinal terms such as "first", "second", etc. may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one element from other elements. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may be referred to as the first component.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the disclosed product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present disclosure.

[0070] As Figures 1-3 shown, according to the first aspect of the present invention, an energy release system is provided, which is configured to release the energy of the closing energy storage spring 201 of the circuit breaker 2 during the removal process of moving the circuit breaker 2 from the test position in the switchgear cabinet out of the switchgear cabinet in the removal direction for maintenance and other operations. Specifically, during this removal process, the presence of the energy release system will cause the circuit breaker initially in the closed state in the test position to at least sequentially experience a first opening position, an intermediate closing position, and a second opening position. Thus, during the removal process of moving the circuit breaker from the test position in the switchgear cabinet out of the switchgear cabinet in the removal direction, the circuit breaker changes from the initial closed state to the first opening state during the process of the circuit breaker reaching the first opening position from the test position; subsequently, during the process of the circuit breaker reaching the intermediate closing position from the first opening position, the circuit breaker changes from the opening state to the closing state, that is, the circuit breaker performs a closing operation, so that the energy possibly existing in its closing energy storage spring is substantially all released; then, during the process of the circuit breaker reaching the second opening position from the intermediate closing position, the circuit breaker changes from the closing state to the opening state again, and at this time, there is no or almost no energy in the closing energy storage spring of the circuit breaker, so that there is no safety hazard to the operator from the circuit breaker.

[0071] To this end, according to an embodiment of the present invention, the energy release system will at least include a guide plate 10, a driven switch 20 for driving the circuit breaker 2 to perform closing and opening actions when rotating, and an actuating plate 30 for driving the driven switch 20 to rotate, wherein during the removal process, the guide plate 10 will guide the sliding of the actuating plate 30.

[0072] According to some specific embodiments, the guide plate 10 is set to be fixed and immovable, that is, during the removal process of moving the circuit breaker out of the switchgear cabinet to the outside of the switchgear cabinet, the guide plate 10 will always remain stationary; more specifically, the guide plate 10 can be a plate member constituting the switchgear cabinet. In addition, as Figure 2 clearly described, the guide plate 10 is provided with a wavy guide surface 11, and the wavy guide surface 11 includes at least three inclined wave surfaces arranged successively, that is, a first inclined wave surface 111, a second inclined wave surface 112, and a third inclined wave surface 113, and as Figure 2 shown, the first inclined wave surface 111 and the third inclined wave surface 113 are inclined along a first inclination direction, and the second inclined wave surface 112 is inclined along a second inclination direction intersecting the first inclination direction, so that the connecting portion between the first inclined wave surface 111 and the second inclined wave surface 112 forms a wave trough or a wave peak, and the connecting portion between the second inclined wave surface 112 and the third inclined wave surface 113 correspondingly forms a wave peak or a wave trough. Optionally, as Figure 2As shown, the first inclined wave surface 111, the second inclined wave surface 112, and the third inclined wave surface 113 can be set to be at least partially arc-shaped, and preferably arc-shaped at the wave crest or wave trough positions to facilitate the guiding effect; as Figure 2 As shown, more specifically, it is arc-shaped with a smaller radius of curvature at the wave crest and arc-shaped with a larger radius of curvature at the wave trough, and these inclined wave surfaces can be partially straight inclined surfaces and partially arc surfaces. Of course, this is schematic, and the specific shapes of these inclined wave surfaces can be set as needed.

[0073] More specifically, as Figure 2 As shown, the guiding plate 10 includes an upper plate 13 and a lower plate 14, and the wavy guiding surface 11 is arranged on the lower plate 14 and forms the upper edge of the lower plate 14. The lower edge of the upper plate 13 is set to be at least partially complementary to the shape of the upper edge of the lower plate 14 to define at least partially a winding guiding path 12 between the lower edge of the upper plate 13 and the upper edge of the lower plate 14.

[0074] Especially as Figure 1 As shown, according to some specific embodiments, the slave switch 20 is made of, for example, a plastic material and can at least include a pivot connection portion 23 and a closing portion 21 and a tripping portion 22 extending from the pivot connection portion 23. The pivot connection portion 23 of the slave switch 20 is installed around a pivot 24 fixedly arranged relative to the circuit breaker 2 and can rotate around the pivot 24. The pivot 24 is fixedly arranged, for example, as Figure 3 As shown, on a mounting plate 202 of the circuit breaker 2. More specifically, as Figure 1 As shown, the closing portion 21 and the tripping portion 22 of the slave switch 20 are respectively arranged as a closing arm and a tripping arm extending from the pivot connection portion 23. The slave switch 20 is arranged such that when it rotates around the pivot 24 in a first direction, the tripping portion 22 will drive the tripping half shaft 203 of the circuit breaker 2 (as Figure 4 As shown) to perform a tripping operation, and when it rotates around the pivot 24 in a second direction opposite to the first direction, the closing portion 21 will drive the closing half shaft 204 of the circuit breaker 2 (as Figure 4 As shown) to perform a closing operation. That is, in the energy release system according to the present invention, the operations of the first tripping, intermediate closing, and second tripping of the circuit breaker 2 are all realized by the closing portion 21 and the tripping portion 22 of the slave switch 20 interacting with the corresponding closing half shaft 204 and tripping half shaft 203 of the circuit breaker 2 through rotation.

[0075] As Figure 1As shown, according to some specific embodiments, the actuating plate 30 includes a first end 31 and a second end 32 opposite to the first end 31. The first end 31 is fixedly connected to the pivoting connection portion 23 of the slave switch 20 with an offset. The second end 32 is arranged to be able to slide along the wavy guiding surface 11 on the guiding plate 10 during the process of moving the circuit breaker out of the test position in the switch cabinet to the outside of the switch cabinet. And as described above, in the case where the guiding plate 10 includes an upper plate 13 and a lower plate 14 and a guiding path 12 that is at least partially meandering is defined between the upper plate 13 and the lower plate 14, it slides along the guiding path 12. In this case, the guiding path 12 can be arranged to restrict the second end 32 of the actuating plate 30 on the guiding path 12 without jolting. Due to the existence of the wavy guiding surface 11, during the moving-out process, the second end 32 of the actuating plate 30 will follow the undulations of the wavy guiding surface 11 and experience, for example, upward and downward movements, and thus drive the first end 31 of the actuating plate 30 to also experience, for example, upward and downward movements accordingly. At this time, since the first end 31 of the actuating plate 30 is fixedly connected to the slave switch 20 with an offset relative to the pivoting connection portion 23 of the slave switch 20, the first end 31 can apply an eccentric force to the slave switch 20, thereby driving the slave switch 20 to rotate around its pivot 24 through its pivoting connection portion 23. As described above, when the slave switch 20 rotates, it can drive the corresponding closing half shaft 204 and opening half shaft 203 of the circuit breaker 2 to perform closing operation and opening operation respectively through its closing portion 21 and opening portion 22.

[0076] Combined with Figure 1 and Figure 2 a specific exemplary configuration shown in, in this example, the upward movement of the first end 31 of the actuating plate 30 will drive the slave switch 20 to rotate counterclockwise, and it is stipulated in this example that this will cause the opening portion 22 of the slave switch 20 to drive the opening half shaft 203 of the circuit breaker 2 to rotate and perform an opening operation; while the downward movement of the first end 31 of the actuating plate 30 will drive the slave switch 20 to rotate clockwise, and it is stipulated in this example that this will cause the closing portion 21 of the slave switch 20 to drive the closing half shaft 204 of the circuit breaker 2 to rotate and perform a closing operation. Of course, this illustrated example is only illustrative, and the rotation direction of the slave switch can be changed according to actual applications.

[0077] In addition, still according to Figure 1 and Figure 2In the specific exemplary structure shown, when the circuit breaker is moved out of the test position in the switchgear cabinet to outside the switchgear cabinet, the second end 32 of the actuating plate 30 will slide along the wavy guiding surface 11 of the guiding plate 10. During this moving-out process, first, the second end 32 of the actuating plate 30 will rise along the first inclined wave surface 111. As a result, the first end 31 of the actuating plate will also rise and will drive the driven switch 20 to rotate counterclockwise, so that its tripping part 22 will drive the tripping half shaft 203 of the circuit breaker 2 to rotate as shown in Figure 4 and when reaching the top of the first inclined wave surface 111, drive the tripping half shaft 203 of the circuit breaker 2 to complete the tripping operation, that is, at this time the circuit breaker 2 is in the first tripping position; subsequently, the second end 32 of the actuating plate 30 will descend along the second inclined wave surface 112. As a result, the first end 31 of the actuating plate 30 will also descend and will drive the driven switch 20 to rotate clockwise, so that its closing part 21 will drive the closing half shaft 204 of the circuit breaker 2 to rotate as shown in Figure 4 and when reaching the bottom of the second inclined wave surface 112, drive the closing half shaft 204 of the circuit breaker 2 to complete the closing operation, that is, at this time the circuit breaker 2 is in the intermediate closing position. At this time, through such a closing operation, the energy that may exist in the closing energy storage spring 201 is basically completely released; after that, the second end 32 of the actuating plate 30 will rise again along the third inclined wave surface 113. As a result, the first end 31 of the actuating plate 30 will also rise again and will drive the driven switch 20 to rotate counterclockwise again, so that its tripping part 22 will drive the tripping half shaft 203 of the circuit breaker 2 to rotate as shown in Figure 4 and when reaching the top of the third inclined wave surface 113, drive the tripping half shaft 203 of the circuit breaker 2 to complete the tripping operation again, that is, at this time the circuit breaker 2 is in the second tripping position. At this time, the circuit breaker can be safely moved out of the switchgear cabinet, that is, there is no longer any potential safety hazard to the operating personnel for the circuit breaker at this time. Of course, this example is only illustrative, and the specific inclination directions of the first inclined wave surface, the second inclined wave surface and the third inclined wave surface can be set according to actual needs.

[0078] It can be seen from this that according to the energy release system of the present invention, the energy that may still exist in the closing energy storage spring of the circuit breaker can be basically completely or completely released during the process of moving the circuit breaker from the test position in the switchgear cabinet out of the switchgear cabinet with a simple structure and automated operation, and such an energy release system can make full use of the available space in the switchgear cabinet, so as to realize a very compact overall structure.

[0079] As shown in Figure 1As shown, in a specific embodiment, as described above, the closing portion 21 and the opening portion 22 of the slave switch 20 are in the form of a closing arm and an opening arm respectively extending from the pivot connection portion 23. In this case, according to a more specific embodiment, the first end 31 of the actuating plate 30 is fixedly connected to a first connecting arm 25 extending from the pivot connection portion 23 of the slave switch 20, and the first connecting arm 25 is arranged separately from the closing arm and the opening arm. That is, in this case, the first end 31 of the actuating plate 30 will apply a biasing force to the slave switch 20 through the first connecting arm 25 and cause the rotation of the slave switch 20 and its closing arm and opening arm. The arrangement of the first connecting arm 25 can ensure that the position of the actuating plate 30 and its position relative to the slave switch 20 can be set more flexibly according to the available space. More specifically, as Figure 1 shown, the first end 31 of the actuating plate 30 is fixedly connected to a second connecting arm 26 extending from the closing arm; of course, according to an embodiment not shown, such a second connecting arm can also extend from the opening arm and be fixedly connected relative to the first end of the actuating plate; in this case, the transmission of the force from the first end 31 of the actuating plate 30 to the slave switch 20 will be further ensured, so that the closing arm and the opening arm can be more stable, and thus the actuation of the closing half shaft and the opening half shaft of the circuit breaker can be further ensured.

[0080] As Figures 1-3 shown, in a more specific embodiment, a guide shaft 33 for sliding on the wavy guide surface 11 of the guide plate 10 is provided at the second end 32 of the actuating plate 30. That is, during the removal process, it is the guide shaft 33 that slides along the wavy guide surface 11 of the guide plate 10 and drives the remaining part of the actuating plate 30 and the first end 31 to perform corresponding undulating movements. The guide shaft 33 can be a component separate from the remaining part of the actuating plate 30 and is fixed to the remaining part of the actuating plate 30 by, for example, welding or riveting; the guide shaft 33 can also be a component integrally formed with the actuating plate 30. In this case, the guide shaft 33 can be arranged to pass through a first guide groove 41 formed in a groove plate 40 fixedly installed relative to the circuit breaker, and the extending direction of the first guide groove 41 is perpendicular to the removal direction along which the circuit breaker 2 is removed from the switch cabinet, so that when the guide shaft 33 slides along the wavy guide surface 11, the guide shaft 33 moves, for example, up and down along the first guide groove 41. Through such a groove plate 40 and such a first guide groove 41, an outward pulling force can be applied to the guide shaft 33 of the actuating plate 30 when the circuit breaker 2 is removed and make it slide along the wavy guide surface 11, and the phenomenon of the guide shaft 33 slipping or sliding reversely relative to the wavy guide surface 11 can be prevented, so that the robust operation of the energy release system can be ensured.

[0081] As Figure 1As shown more clearly, according to a more specific embodiment, a bending plate 34 fixedly connected or integrally provided with the guiding shaft 33 is further provided at the second end 32 of the actuating plate 30. The bending plate 34 is arranged parallel to the groove plate 40 and abuts against the groove plate 40, and a second guiding groove 35 extending parallel to the first guiding groove 41 is provided in the bending plate 34. And, according to this specific embodiment, the energy release system further includes at least one guiding stopper 42, for example, two guiding stoppers 42. The guiding stopper 42 includes a guiding column (not shown) and a guiding cover 421 fixedly connected to each other. The guiding column passes through the second guiding groove 35 and is fixed to the groove plate 40, and the width of the guiding cover 421 is set to be greater than the width of the second guiding groove 35, so that the bending plate 34 is located between the guiding cover 421 and the groove plate 40. That is, the guiding cover 421 of the guiding stopper 42 does not extend into the second guiding groove 35. Thus, the movement of the actuating plate 30 in a direction perpendicular to the moving-out direction and perpendicular to the extending direction of the second guiding groove 35 can be restricted, further ensuring the stable operation of the energy release system.

[0082] Still as Figure 1 shown, according to a more specific embodiment, the energy release system further includes a first reset elastic member 51 and a second reset elastic member 52 arranged parallel to the extending direction of the first guiding groove 41, for example, in the form of springs respectively. The first ends of the first reset elastic member 51 and the second reset elastic member 52 are fixed on a convex portion 53 fixedly provided relative to the groove plate 40, and the second ends of the first reset elastic member 51 and the second reset elastic member 52 are respectively fixed to the two ends 341, 342 of the bending plate 34. More specifically, the convex portion 53 can be arranged to pass through the second guiding groove 35. Thus, by providing the first reset elastic member 51 and the second reset elastic member 52, after the circuit breaker is pulled out of the switchgear cabinet, for example, the reset of the actuating plate 30 can be realized, that is, the actuating plate 30 is restored to its original rest position.

[0083] The exemplary embodiments of the energy release system proposed by the present invention have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present invention, various variations and modifications can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present invention can be made, without exceeding the protection scope of the present invention.

[0084] The scope of the present disclosure is not limited by the embodiments described above, but is defined by the appended claims and their equivalent scope.

Claims

1. An energy release system for releasing the energy of the closing energy storage spring (201) of a circuit breaker (2) during the process of moving the circuit breaker (2) from the test position in a switchgear cabinet out of the switchgear cabinet in the removal direction, wherein, The energy release system includes: A guide plate (10), which is set to be fixed and immovable, and a wavy guide surface (11) is provided on the guide plate (10). A slave switch (20), which has a tripping part (22), a closing part (21) and a pivot connection part (23), and can rotate around a pivot (24) fixed relative to the circuit breaker (2) through its pivot connection part (23), and An actuating plate (30), which has a first end (31) and an opposite second end (32). The first end (31) is fixedly connected to the slave switch (20) offset from the pivot connection part (23) of the slave switch (20). The second end (32) is set to be able to slide along the wavy guide surface (11) during the moving-out process, thereby driving the first end (31) to perform a undulating motion and driving the slave switch (20) to pivot. Wherein, the slave switch (20) is set such that when rotating around the pivot (24) in a first direction, the tripping part (22) will drive the tripping half shaft (203) of the circuit breaker (2) to perform a tripping operation, and when rotating around the pivot (24) in a second direction opposite to the first direction, the closing part (21) will drive the closing half shaft (204) of the circuit breaker (2) to perform a closing operation, and Wherein, the wavy guide surface (11) includes at least three successive inclined wave surfaces, such that during the moving-out process, the circuit breaker (2) can at least successively experience a first tripping position, an intermediate closing position and a second tripping position.

2. The energy release system according to claim 1, wherein, The at least three inclined wave surfaces include a first inclined wave surface (111), a second inclined wave surface (112) and a third inclined wave surface (113). Wherein, the first inclined wave surface (111) and the third inclined wave surface (113) are inclined in a first inclined direction, the second inclined wave surface (112) is inclined in a second inclined direction intersecting with the first inclined direction, and Wherein, during the moving-out process, at the end of the first inclined wave surface (111), the circuit breaker (2) experiences the first tripping position, at the end of the second inclined wave surface (112), the circuit breaker (2) experiences the intermediate closing position, and at the end of the third inclined wave surface (113), the circuit breaker (2) experiences the second tripping position.

3. The energy release system according to claim 2, wherein, The closing part (21) and the tripping part (22) of the slave switch (20) are respectively set as a closing arm and a tripping arm extending from the pivot connection part (23).

4. The energy release system according to claim 3, wherein, The first end (31) of the actuating plate (30) is fixedly connected to a first connecting arm (25) extending from the pivot connection part (23) of the slave switch (20), and the first connecting arm (25) is arranged separately from the closing arm and the tripping arm.

5. The energy release system according to claim 3 or 4, wherein The first end (31) of the actuating plate (30) is fixedly connected to a second connecting arm (26) extending from the tripping arm or the closing arm.

6. The energy release system according to any one of claims 1 to 4, wherein, The second end (32) of the actuating plate (30) is provided with a guide shaft (33) for sliding on the wavy guide surface (11), and the guide shaft (33) passes through a first guide groove (41) provided in a groove plate (40) fixedly installed relative to the circuit breaker (2). The extending direction of the first guide groove (41) is perpendicular to the moving-out direction, so that when the guide shaft (33) slides along the wavy guide surface (11), the guide shaft (33) moves along the first guide groove (41).

7. The energy release system according to claim 6, wherein The second end (32) of the actuating plate (30) is further provided with a bent plate (34) fixedly connected to the guide shaft (33). The bent plate (34) is arranged parallel to the groove plate (40) and abuts against the groove plate (40). A second guide groove (35) extending parallel to the first guide groove (41) is provided in the bent plate (34), and The energy release system further includes at least one guide stopper (42). The at least one guide stopper (42) includes a guide post and a guide cover (421) fixedly connected to each other. The guide post passes through the second guide groove (35) and is fixed to the groove plate (40). The width of the guide cover (421) is set to be greater than the width of the second guide groove (35), so that the bent plate (34) is located between the guide cover (421) and the groove plate (40).

8. The energy release system according to claim 7, wherein The energy release system further includes a first reset elastic member (51) and a second reset elastic member (52) arranged parallel to the extending direction of the first guide groove (41). The first ends of the first reset elastic member (51) and the second reset elastic member (52) are fixed on a convex portion (53) fixedly arranged relative to the groove plate (40). The second ends of the first reset elastic member (51) and the second reset elastic member (52) are respectively fixed to both ends (341, 342) of the bent plate (34).

9. The energy release system according to claim 8, wherein, The convex portion (53) is arranged to pass through the second guide groove (35).

10. The energy release system according to any one of claims 1 to 4, wherein, The slave switch (20) is made of a plastic material.

11. The energy release system according to claim 7, wherein The guide shaft (33) and the bent plate (34) are separate components fixedly connected together.

12. The energy release system according to claim 7, wherein, The guide shaft (33) and the bent plate (34) are integrally formed.

13. A circuit breaker, wherein, The circuit breaker includes the energy release system according to any one of claims 1 to 12.

14. A switchgear cabinet, wherein, The switchgear includes the circuit breaker according to claim 13.

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