CN111192766B - Spring operating mechanism and circuit breaker - Google Patents
Spring operating mechanism and circuit breaker Download PDFInfo
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- CN111192766B CN111192766B CN201911327325.XA CN201911327325A CN111192766B CN 111192766 B CN111192766 B CN 111192766B CN 201911327325 A CN201911327325 A CN 201911327325A CN 111192766 B CN111192766 B CN 111192766B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
The invention relates to a spring operating mechanism and a circuit breaker, wherein a latch of the spring operating mechanism is assembled on a rack in a swinging manner, a main electromagnet and an auxiliary electromagnet are arranged in the extending direction of a striker and are respectively positioned at two opposite sides of the latch, the axis of a driving rod of the auxiliary electromagnet is parallel to or coincided with the axis of a driving rod of the main electromagnet, a hook is arranged on the driving rod of the auxiliary electromagnet, when the main electromagnet is normal, the latch action space ensures that the latch and the auxiliary electromagnet do not interfere, and when the main electromagnet fails, the latch can be driven to act through the hook on the driving rod of the auxiliary electromagnet. Compared with the mode of arranging two electromagnets in parallel, the distance between the driving rods of the two electromagnets is smaller or zero, and a striker is not required to be arranged on the latch to be matched with the two electromagnet driving rods with longer distance, so that the problem that the spring operating mechanism occupies larger space due to the fact that the existing spring operating mechanism needs to reserve larger moving space of the striker is solved.
Description
Technical Field
The invention relates to a spring operating mechanism and a circuit breaker.
Background
The breaker spring operating mechanism comprises a rack, an output rotating shaft and an energy storage shaft are rotatably mounted on the rack, a connecting lever is sleeved on the upper rotating shaft, a cam is sleeved on the upper rotating shaft of the energy storage shaft, the cam is connected with a closing spring, an opening spring is connected onto the connecting lever, after the energy storage of the closing spring is released, the cam can drive the connecting lever to enable the output rotating shaft to rotate towards the closing direction, after the energy storage of the opening spring is released, the opening spring drives an output shaft to rotate towards the opening direction through the connecting lever, a closing pawl and an opening pawl are further arranged on the rack, the opening pawl and the closing pawl are used for placing the opening spring and the closing spring in an energy storage holding state, in order to avoid the action of the pawl, the control of the pawl is realized, and the spring operating mechanism is generally provided with a tripping system.
The Chinese invention patent application with the application publication number of CN109166741A and the application publication number of 2019.01.08 discloses a circuit breaker, a spring operating mechanism and a latch assembly thereof, wherein the spring operating mechanism comprises a latch and a latch assembly, the latch assembly comprises a base and a latch which is rotatably assembled on the base, the latch is provided with a stopping position for stopping the latch and an abdicating position for abdicating the latch on a controlled reciprocating swinging stroke, the base is provided with at least two electromagnets which are arranged in parallel and can independently drive the latch to be swung from the stopping position to the abdicating position, the latch and the electromagnets are propped and matched through a collision rod on the latch and a collision rod of the electromagnets, the two electromagnets of the spring operating mechanism are mutually independent and can realize the independent drive of the latch, but the electromagnets are arranged in parallel, a larger installation space is needed in the extending direction of a latch swinging axis, and the distance between driving rods of the two electromagnets is longer during installation, the striker is required to be arranged on the latch, the length of the striker is long, the striker needs a large installation space along with the swing of the latch, and the problem of large occupied space of the latch assembly exists.
Disclosure of Invention
The invention aims to provide a spring operating mechanism, which is used for solving the problem that the existing spring operating mechanism needs to reserve a larger activity space of a collision bar, so that the occupied space of the spring operating mechanism is larger; in addition, the invention also aims to provide a circuit breaker using the spring operating mechanism.
The spring operating mechanism adopts the following technical scheme:
a frame;
a detent;
the lock latch is assembled on the frame in a swinging manner;
a main electromagnet and a secondary electromagnet which can independently drive the latch to act,
the main electromagnet comprises a main electromagnet driving rod which is used for being matched with the latch in an abutting mode so as to drive the latch to act;
the auxiliary electromagnet comprises an auxiliary electromagnet driving rod, the axis of the auxiliary electromagnet driving rod is parallel to or coincident with the axis of the main electromagnet driving rod, a hook is arranged on the auxiliary electromagnet driving rod and used for being matched with a latch hook to drive the latch to act, a latch matching part matched with the latch hook is arranged on the hook, and a latch acting space for the latch to act is formed in one side of the latch matching part, facing the latch, of the latch matching part;
the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the main electromagnet driving rod; in the extending direction of the main electromagnet driving rod, the main electromagnet and the auxiliary electromagnet are respectively positioned at two opposite sides of the latch;
the latch comprises an abutting matching part which is in abutting matching with the main electromagnet driving rod and a hook matching part which is matched with the hook.
The invention has the beneficial effects that: the latch of the spring operating mechanism is assembled on the frame in a swinging mode, the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the striker and are respectively positioned on two opposite sides of the latch, the axis of the driving rod of the auxiliary electromagnet is parallel to or coincident with the axis of the driving rod of the main electromagnet, the driving rod of the auxiliary electromagnet is provided with a hook, when the main electromagnet is normal, the latch action space ensures that the latch does not interfere with the auxiliary electromagnet, and when the main electromagnet fails, the latch can be driven to act through the hook on the driving rod of the auxiliary electromagnet. Compared with the mode of arranging two electromagnets in parallel, the distance between the driving rods of the two electromagnets is smaller or zero, and a striker is not required to be arranged on the latch to be matched with the two electromagnet driving rods with longer distance, so that the problem that the spring operating mechanism occupies larger space due to the fact that the existing spring operating mechanism needs to reserve larger moving space of the striker is solved.
Further, the hooking engagement portion and the abutting engagement portion are arranged in the extending direction of the latch swing axis. The action strokes of the two electromagnets on the lock latch are the same, and the specifications of the two electromagnets can be the same.
Further, the abutting engagement portion and a latch stop engagement portion of the latch for engagement with the latch stop are arranged in a direction perpendicular to the swing axis of the latch, and the hook engagement portion is suspended to the side of the abutting engagement portion. The main electromagnet is used as a common electromagnet, can stably apply force to the latch, and prolongs the service life of the mechanism.
Furthermore, the hook is detachably and fixedly connected with the auxiliary electromagnet driving rod. Because the hook is easy to wear, the hook and the auxiliary electromagnet driving rod can be detached, and the hook is convenient to replace.
Furthermore, the lock latch matching part and the auxiliary electromagnet driving rod are arranged in the axial direction of the auxiliary electromagnet driving rod at intervals, and a lock latch action space is arranged between the lock latch matching part and the auxiliary electromagnet driving rod. The action force applied to the latch by the auxiliary electromagnet driving rod is ensured to be in the axial direction of the auxiliary electromagnet driving rod, the existence of offset distance is avoided, and the stability is good.
Furthermore, the hook is a U-shaped hook for inserting a lock bolt, the U-shaped hook comprises two parallel sections and a connecting section for connecting the two parallel sections, one parallel section forms the lock bolt matching part, the other parallel section is fixed with the driving rod of the auxiliary electromagnet, and the lock bolt action space is positioned between the two parallel sections. The U-shaped hook is simple in structure and convenient to process and mount.
Furthermore, a threaded hole is formed in a parallel section fixed with the auxiliary electromagnet driving rod, and the parallel section is fixed with the auxiliary electromagnet driving rod through the threaded hole. The hook is convenient to replace, and the threaded hole is simple in structure and convenient to install.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in the holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the holder of the auxiliary electromagnet and the rack; and/or a main electromagnet holder hole for fixing the main electromagnet is arranged on the main electromagnet holder, the main electromagnet holder hole extends along the extension direction of the main electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the main electromagnet holder and the frame. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in a holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, an auxiliary electromagnet fixing hole corresponding to the auxiliary electromagnet holder hole is formed in the rack, at least one of the auxiliary electromagnet fixing hole and the auxiliary electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the auxiliary electromagnet; and/or the main electromagnet holder is provided with a main electromagnet holder hole for fixing the main electromagnet, the main electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, the rack is provided with a main electromagnet fixing hole corresponding to the main electromagnet holder hole, at least one of the main electromagnet fixing hole and the main electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the main electromagnet. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
The technical scheme of the circuit breaker comprises the following steps:
the circuit breaker includes spring operating mechanism, and spring operating mechanism includes:
a frame;
a detent;
the lock latch is assembled on the frame in a swinging manner;
a main electromagnet and a secondary electromagnet which can independently drive the latch to act,
the main electromagnet comprises a main electromagnet driving rod which is used for being matched with the latch in an abutting mode so as to drive the latch to act;
the auxiliary electromagnet comprises an auxiliary electromagnet driving rod, the axis of the auxiliary electromagnet driving rod is parallel to or coincident with the axis of the main electromagnet driving rod, a hook is arranged on the auxiliary electromagnet driving rod and used for being matched with a latch hook to drive the latch to act, a latch matching part matched with the latch hook is arranged on the hook, and a latch acting space for the latch to act is formed in one side of the latch matching part, facing the latch, of the latch matching part;
the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the main electromagnet driving rod; in the extending direction of the main electromagnet driving rod, the main electromagnet and the auxiliary electromagnet are respectively positioned at two opposite sides of the latch;
the latch comprises an abutting matching part which is in abutting matching with the main electromagnet driving rod and a hook matching part which is matched with the hook.
The invention has the beneficial effects that: the latch of the spring operating mechanism is assembled on the frame in a swinging mode, the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the striker and are respectively positioned on two opposite sides of the latch, the axis of the driving rod of the auxiliary electromagnet is parallel to or coincident with the axis of the driving rod of the main electromagnet, the driving rod of the auxiliary electromagnet is provided with a hook, when the main electromagnet is normal, the latch action space ensures that the latch does not interfere with the auxiliary electromagnet, and when the main electromagnet fails, the latch can be driven to act through the hook on the driving rod of the auxiliary electromagnet. Compared with the mode of arranging two electromagnets in parallel, the distance between the driving rods of the two electromagnets is smaller or zero, and a striker is not required to be arranged on the latch to be matched with the two electromagnet driving rods with longer distance, so that the problem that the spring operating mechanism occupies larger space due to the fact that the existing spring operating mechanism needs to reserve larger moving space of the striker is solved.
Further, the hooking engagement portion and the abutting engagement portion are arranged in the extending direction of the latch swing axis. The action strokes of the two electromagnets on the lock latch are the same, and the specifications of the two electromagnets can be the same.
Further, the abutting engagement portion and a latch stop engagement portion of the latch for engagement with the latch stop are arranged in a direction perpendicular to the swing axis of the latch, and the hook engagement portion is suspended to the side of the abutting engagement portion. The main electromagnet is used as a common electromagnet, can stably apply force to the latch, and prolongs the service life of the mechanism.
Furthermore, the hook is detachably and fixedly connected with the auxiliary electromagnet driving rod. Because the hook is easy to wear, the hook and the auxiliary electromagnet driving rod can be detached, and the hook is convenient to replace.
Furthermore, the lock latch matching part and the auxiliary electromagnet driving rod are arranged in the axial direction of the auxiliary electromagnet driving rod at intervals, and a lock latch action space is arranged between the lock latch matching part and the auxiliary electromagnet driving rod. The action force applied to the latch by the auxiliary electromagnet driving rod is ensured to be in the axial direction of the auxiliary electromagnet driving rod, the existence of offset distance is avoided, and the stability is good.
Furthermore, the hook is a U-shaped hook for inserting a lock bolt, the U-shaped hook comprises two parallel sections and a connecting section for connecting the two parallel sections, one parallel section forms the lock bolt matching part, the other parallel section is fixed with the driving rod of the auxiliary electromagnet, and the lock bolt action space is positioned between the two parallel sections. The U-shaped hook is simple in structure and convenient to process and mount.
Furthermore, a threaded hole is formed in a parallel section fixed with the auxiliary electromagnet driving rod, and the parallel section is fixed with the auxiliary electromagnet driving rod through the threaded hole. The hook is convenient to replace, and the threaded hole is simple in structure and convenient to install.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in the holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the holder of the auxiliary electromagnet and the rack; and/or a main electromagnet holder hole for fixing the main electromagnet is arranged on the main electromagnet holder, the main electromagnet holder hole extends along the extension direction of the main electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the main electromagnet holder and the frame. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in a holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, an auxiliary electromagnet fixing hole corresponding to the auxiliary electromagnet holder hole is formed in the rack, at least one of the auxiliary electromagnet fixing hole and the auxiliary electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the auxiliary electromagnet; and/or the main electromagnet holder is provided with a main electromagnet holder hole for fixing the main electromagnet, the main electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, the rack is provided with a main electromagnet fixing hole corresponding to the main electromagnet holder hole, at least one of the main electromagnet fixing hole and the main electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the main electromagnet. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
Drawings
Fig. 1 is a schematic structural view of a circuit breaker according to an embodiment 1 of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic view of an assembly structure of two electromagnets, a part of a frame and a latch in the embodiment 1 of the circuit breaker of the present invention;
fig. 4 is a schematic view of an assembly structure of two electromagnets and latches in embodiment 1 of the circuit breaker of the present invention;
fig. 5 is a schematic view of an assembly structure of two electromagnets and a latch from another view angle in the embodiment 1 of the circuit breaker of the present invention;
fig. 6 is a schematic diagram of the position relationship between the driving rods and the latches of two electromagnets in the embodiment 1 of the circuit breaker of the present invention;
in the figure: 1-a circuit breaker body; 2-a spring operating mechanism; 21-a frame; 22-a latch; 221-a latch stop engagement portion; 222-a counter-engaging portion; 223-hooking engagement portions; 23-a main electromagnet; 231-main electromagnet cage; 2311-main electromagnet holder aperture; 232-main electromagnet moving iron; 233-main electromagnet drive rod; 24-a secondary electromagnet; 241-auxiliary electromagnet retainer; 2411-auxiliary electromagnet holder hole; 242-secondary electromagnet moving iron; 243-auxiliary electromagnet driving rod; 244-hooks; 2441-connecting segment; 2442-latch mating part; 2443-fixed section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the circuit breaker of the present invention: as shown in fig. 1, the circuit breaker includes a circuit breaker body 1 and a spring operating mechanism 2, the spring operating mechanism 2 includes a frame 21 and two latches, one of the two latches is an opening latch, the other is a closing latch, and both the opening latch and the closing latch are connected to a tripping system.
As shown in fig. 2 to 6, the opening tripping system of the spring-operated mechanism includes a latch 22 pivotably mounted on a frame 21, a main electromagnet 23 for driving the latch 22 individually, and a sub-electromagnet 24 for driving the latch 22 individually, and the latch 22 includes a latch stop engagement portion 221 for engaging with the opening latch stop to limit the opening latch release.
The main electromagnet 23 includes a main electromagnet holder 231, a main electromagnet coil, a main electromagnet moving iron 232, and a main electromagnet driving rod 233, the main electromagnet holder 231 is fixed to the frame 21, two main electromagnet holder holes 2311 are formed in the main electromagnet holder 231, main electromagnet fixing holes corresponding to the main electromagnet holder holes 2311 are formed in the frame 21, and the main electromagnet holding holes 2311 are fixed to the frame 21 by two fixing bolts penetrating through the main electromagnet holder holes 2311, and the axes of the two fixing bolts are parallel to the axis of the main electromagnet driving rod 233, so that the position of the main electromagnet 23 in the extending direction of the main electromagnet driving rod 233 can be adjusted by adding an adjusting shim, and the gap between the main electromagnet driving rod 233 and the latch 22 is appropriate. The main electromagnet driving rod 233 is fixed to the main electromagnet moving iron 232, and has an abutting end for abutting and cooperating with the latch 22 to drive the latch 22 to move.
The sub-electromagnet 24 includes a sub-electromagnet holder 241, a sub-electromagnet coil, a sub-electromagnet moving iron 242, and a sub-electromagnet drive lever 243, the axis of the sub-electromagnet drive lever 243 is parallel to the axis of the main electromagnet drive lever 233, and the main electromagnet 23 and the sub-electromagnet 24 are arranged in the extending direction of the main electromagnet drive lever 233. In the extending direction of the main electromagnet driving rod 233, the main electromagnet 23 and the auxiliary electromagnet 24 are respectively located at two opposite sides of the latch 22, so that the distance between the auxiliary electromagnet driving rod 243 and the main electromagnet driving rod 233 is reduced, the smaller latch 22 can be matched with the two electromagnets, and the occupied space of the spring operating mechanism 2 is reduced.
The auxiliary electromagnet holder 241 is fixed to the frame 21, and as shown in fig. 2, two auxiliary electromagnet holder holes 2411 are provided in the auxiliary electromagnet holder 241, and fixed to the frame 21 by passing through the auxiliary electromagnet holder holes 2411 with two fixing bolts, and auxiliary electromagnet fixing holes corresponding to the auxiliary electromagnet holder holes 2411 are provided in the frame 21. The auxiliary electromagnet holder hole 2411 extends along the extending direction of the auxiliary electromagnet driving rod 243, and the axes of the two fixing bolts are parallel to the axis of the auxiliary electromagnet driving rod 243, so that the position of the auxiliary electromagnet 24 in the extending direction of the auxiliary electromagnet driving rod 243 can be adjusted by adding an adjusting gasket, and the position of the auxiliary electromagnet driving rod 243 is proper.
The auxiliary electromagnet driving rod 243 is fixed on the auxiliary electromagnet moving iron 242, and a hook 244 is fixed at one end of the auxiliary electromagnet driving rod, and the hook 244 is used for being hooked with the latch 22 to drive the latch 22 to move. The hook 244 is a U-shaped hook, the U-shaped hook comprises two parallel sections and a connecting section 2441 for connecting the two parallel sections, one of the parallel sections forms a latch matching part 2442 matched with the latch 22 in a hooking manner, the other parallel section is a fixing section 2443 fixed with the auxiliary electromagnet driving rod 243, a threaded hole is formed in the fixing section 2443, a threaded section matched with the threaded hole in a threaded manner is arranged on the auxiliary electromagnet driving rod 243, and the auxiliary electromagnet driving rod 243 is fixed with the hook 244 through the threaded section. Because the auxiliary electromagnet driving rod 243 requires to use non-magnetic materials, the auxiliary electromagnet driving rod 243 uses materials which are not wear-resistant, and the U-shaped fixing block and the auxiliary electromagnet driving rod 243 are detachably connected in a split manner, so that the hook 244 is made of wear-resistant materials and is convenient to replace after being worn.
The latch fitting portion 2442 and the sub-electromagnet drive lever 243 are provided at an interval in the axial direction of the sub-electromagnet drive lever 243, a latch operation space for operating the latch 22 is formed therebetween, and a force receiving point of the hook 244 is located on an extension line of the sub-electromagnet drive lever 243, thereby ensuring that the sub-electromagnet 24 stably applies force to the latch 22.
The latch 22 further includes an abutting engagement portion 222 which is in abutting engagement with the main electromagnet driving lever 233 and a hook engagement portion 223 which is in engagement with the hook 244. Since the main electromagnet 23 is a conventional electromagnet and the abutting engagement portion 222 engaged with the main electromagnet driving rod 233 is a portion with a higher frequency of use, in this embodiment, in order to improve the stability of the spring operating mechanism 2, the abutting engagement portion 222 and the separating brake latch stop engagement portion 221 are disposed in a direction perpendicular to the swing axis of the latch 22, so that the distance between the two portions in the extending direction of the swing axis of the latch 22 is zero, thereby reducing the eccentric torque of the latch. For the hook engaging portion 223, because the secondary electromagnet 24 is not commonly used, the hook engaging portion 223 and the abutting engaging portion 222 are arranged in the extending direction of the swing axis of the lock bar 22, and the hook engaging portion 223 is suspended beside the abutting engaging portion 222, so that the volume of the lock bar 22 is not changed as much as possible on the premise of not influencing the normal operation, the original assembling relation of the lock bar 22 is not changed, and only the convex abutting engaging portion 222 needs to be arranged on the original lock bar 22, the structure is simple, and the cost is low.
The spring operating mechanism 2 is provided with a controller for controlling the main electromagnet 23 and the auxiliary electromagnet 24 to independently drive the latch 22 to act, when the spring operating mechanism 2 drives the breaker body 1 to open the brake, the brake opening spring stores energy, the controller receives a brake opening command and then controls the main electromagnet 23 to act, so that the main electromagnet driving rod 233 drives the latch 22 to act, the latch 22 releases the blocking of the split brake catch, the split brake catch is released, and the split brake spring releases elastic potential energy to open the breaker.
The closing pawl of the invention is also provided with a closing tripping system, and the action mode of the closing tripping system on the closing pawl is the same as the action mode of the opening tripping system on the opening pawl in principle, and the details are not repeated here.
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: one of the auxiliary electromagnet fixing hole and the corresponding auxiliary electromagnet retainer hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part, so that the position of the auxiliary electromagnet is conveniently adjusted, and the hook corresponds to the position of the latch. In other embodiments, both of the secondary electromagnet fixing hole and the secondary electromagnet holder hole may be elongated holes. In other embodiments, one of the main electromagnet fixing hole and the corresponding main electromagnet holder hole is a long hole extending in the arrangement direction of the abutting engagement portion and the hooking engagement portion
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: the abutting engagement portion is suspended on a side of the hooking engagement portion, and the hooking engagement portion and the abutting engagement portion are arranged in an extending direction of a swing axis of the latch. In other embodiments, when the latch has a larger extension of the rotation axis, the two parts are not suspended; of course, when the latch has a large dimension in the direction in which the rotation axis extends, both the hooking engagement portion and the abutting engagement portion may be partially suspended.
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: the hook is welded and fixed with the auxiliary electromagnet driving rod. In other embodiments, the hook and the secondary electromagnet driving rod can be integrally formed or fixed through a flange.
The circuit breaker in this embodiment is different from the above circuit breaker in only the following specific implementation: the hooking engagement portion and the abutting engagement portion are arranged in the latch swing shaft radial direction, that is, in the latch length direction.
The circuit breaker in this embodiment is different from the above circuit breaker in only the following specific implementation: the lock latch matching part can be directly arranged at the side of the auxiliary electromagnet driving rod, and the lock latch matching part and the auxiliary electromagnet driving rod are arranged in an L shape. In other embodiments, the latch mating portion is in a J-shaped arrangement with the secondary electromagnet drive bar.
The circuit breaker in this embodiment is different from the circuit breaker in the above embodiment only in that: the axis of the auxiliary electromagnet driving rod coincides with the axis of the main electromagnet driving rod, and at the moment, the latch matching part on the hook and the auxiliary electromagnet driving rod are staggered in the axial direction of the auxiliary electromagnet driving rod.
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: and the retainer of the auxiliary electromagnet is welded and fixed on the rack. In other embodiments, the secondary-electromagnet holder hole extends in a direction perpendicular to the direction in which the secondary-electromagnet drive rod extends. Similarly, the main electromagnet holder can be welded and fixed on the frame, and the main electromagnet holder hole can also extend along the direction perpendicular to the extension direction of the auxiliary electromagnet driving rod.
In the embodiment of the spring operating mechanism of the present invention, the specific implementation manner of the spring operating mechanism in this embodiment is the same as the structure of the spring operating mechanism described in the specific embodiment of any one of the above-mentioned circuit breakers, and details are not repeated.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The spring operating mechanism includes:
a frame;
a detent;
it is characterized in that the spring operating mechanism further comprises:
the lock latch is assembled on the frame in a swinging manner;
a main electromagnet and a secondary electromagnet which can independently drive the latch to act,
the main electromagnet comprises a main electromagnet driving rod which is used for being matched with the latch in an abutting mode so as to drive the latch to act;
the auxiliary electromagnet comprises an auxiliary electromagnet driving rod, the axis of the auxiliary electromagnet driving rod is parallel to or coincident with the axis of the main electromagnet driving rod, a hook is arranged on the auxiliary electromagnet driving rod and used for being matched with a latch hook to drive the latch to act, a latch matching part matched with the latch hook is arranged on the hook, and a latch acting space for the latch to act is formed in one side of the latch matching part, facing the latch, of the latch matching part;
the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the main electromagnet driving rod; the main electromagnet is positioned at one side of the latch in the extending direction of the main electromagnet driving rod, and the auxiliary electromagnet is positioned at the other side of the latch in the extending direction of the main electromagnet driving rod;
the latch comprises an abutting matching part which is in abutting matching with the main electromagnet driving rod and a hook matching part which is matched with the hook.
2. The spring operating mechanism of claim 1, wherein the hooking engagement portion and the abutting engagement portion are disposed in a direction in which the latch pivot axis extends.
3. The spring operated mechanism of claim 2 wherein the abutting engagement portion and a latch stop engagement portion of the latch for engaging the latch stop are disposed in a direction perpendicular to the swing axis of the latch, and the hook engagement portion is suspended laterally of the abutting engagement portion.
4. The spring operating mechanism of claim 1, 2 or 3, wherein the latch is removably secured to the secondary electromagnet drive rod.
5. The spring operating mechanism of claim 1, 2 or 3, wherein the latch engagement portion and the secondary electromagnet drive lever are spaced apart in an axial direction of the secondary electromagnet drive lever, and the latch actuation space is provided between the latch engagement portion and the secondary electromagnet drive lever.
6. The spring operated mechanism of claim 5, wherein the hook is a clevis into which the latch is inserted, the clevis including two parallel sections and a connecting section connecting the two parallel sections, one of the parallel sections forming the latch engaging portion and the other parallel section being fixed to the secondary electromagnet driving lever, the latch actuating space being defined between the two parallel sections.
7. The spring operating mechanism of claim 6, wherein the parallel section fixed to the secondary electromagnet driving rod is provided with a threaded hole, and the parallel section is fixed to the secondary electromagnet driving rod through the threaded hole.
8. The spring operating mechanism according to claim 1, 2 or 3, wherein the holder of the secondary electromagnet is provided with a secondary electromagnet holder hole for fixing the secondary electromagnet, the secondary electromagnet holder hole extends along the extension direction of the secondary electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the holder of the secondary electromagnet and the rack; and/or a main electromagnet holder hole for fixing the main electromagnet is arranged on the main electromagnet holder, the main electromagnet holder hole extends along the extension direction of the main electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the main electromagnet holder and the frame.
9. The spring operating mechanism according to claim 1, 2 or 3, wherein the holder of the auxiliary electromagnet is provided with an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet, the auxiliary electromagnet holder hole extends in the direction in which the auxiliary electromagnet drive lever extends, the frame is provided with an auxiliary electromagnet fixing hole corresponding to the auxiliary electromagnet holder hole, at least one of the auxiliary electromagnet fixing hole and the auxiliary electromagnet holder hole is a long hole, and the long hole extends in the direction in which the abutting engagement portion and the hooking engagement portion are arranged, for adjusting the fixing position of the auxiliary electromagnet; and/or the main electromagnet holder is provided with a main electromagnet holder hole for fixing the main electromagnet, the main electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, the rack is provided with a main electromagnet fixing hole corresponding to the main electromagnet holder hole, at least one of the main electromagnet fixing hole and the main electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the main electromagnet.
10. A circuit breaker including a spring operated mechanism, wherein the spring operated mechanism is a spring operated mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327325.XA CN111192766B (en) | 2019-12-20 | 2019-12-20 | Spring operating mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327325.XA CN111192766B (en) | 2019-12-20 | 2019-12-20 | Spring operating mechanism and circuit breaker |
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| Publication Number | Publication Date |
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| CN111192766A CN111192766A (en) | 2020-05-22 |
| CN111192766B true CN111192766B (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911327325.XA Active CN111192766B (en) | 2019-12-20 | 2019-12-20 | Spring operating mechanism and circuit breaker |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112700993B (en) * | 2020-12-09 | 2024-04-19 | 河南平高电气股份有限公司 | Spring operating mechanism and latch assembly device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0521789Y2 (en) * | 1987-12-14 | 1993-06-04 | ||
| CN2337667Y (en) * | 1998-03-05 | 1999-09-08 | 高玉龙 | Switching on-off electric magnet |
| CN103400711B (en) * | 2013-08-19 | 2015-06-10 | 富英 | High-power spring operation mechanism |
| CN104332334A (en) * | 2014-10-30 | 2015-02-04 | 贵州长征开关制造有限公司 | Novel self-locking driving structure of single rotating shaft of double-fragment automatic change-over switching device |
| CN204289139U (en) * | 2014-12-04 | 2015-04-22 | 中国西电电气股份有限公司 | A kind of breaker operation mechanism |
| CN205751904U (en) * | 2016-06-27 | 2016-11-30 | 江苏明及电气股份有限公司 | A kind of sincere sub-axle for breaker spring operating mechanism |
| CN206806200U (en) * | 2017-05-25 | 2017-12-26 | 昆明湘云衡电气设备有限公司 | A kind of 35kV interlocking device of high-voltage switch cabinet |
| CN111312535B (en) * | 2018-09-12 | 2021-11-16 | 平高集团有限公司 | Circuit breaker, spring operating mechanism and plunger latch assembly thereof |
| CN209544177U (en) * | 2018-12-26 | 2019-10-25 | 山东泰开电器机构有限公司 | A kind of high-voltage breaker spring operating mechanism and transmission device |
| CN110137045B (en) * | 2019-04-25 | 2022-07-05 | 河南平高电气股份有限公司 | Spring operating mechanism and circuit breaker using same |
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