A sudden jump structure of an isolating switch and the isolating switch

Abstract

The present invention belongs to the field of low-voltage switches, and specifically relates to a snap structure of an isolating switch and an isolating switch, comprising a housing assembly and a snap member, a linkage member, an energy-gathering elastic member, a closing limit member, and an opening limit member. Different from the rotational motion of the snap member and the linkage member in the existing conventional snap mechanism, the snap member and the linkage member of the present invention are linear motions, the energy-gathering elastic member adopts a compression spring limited between the snap member and the linkage member and enables it to only perform telescopic motion along the first direction X to store / release energy, during the opening and closing movement, the opening limit member or the closing limit member limits the snap member so that it cannot move to the opening position or the closing position, forming a linkage member relative to the snap member to drive the energy-gathering elastic member to compress and store energy, and after the linkage member pushes the opening limit member or the closing limit member to unlock, the snap member quickly moves to the opening position or the closing position under the energy release of the energy-gathering elastic member, the movement is reliable, and the overall volume is small.

Description

Technical Field

[0001] The invention belongs to the field of low-voltage switches, and in particular relates to a sudden jump structure of an isolating switch and the isolating switch. Background Art

[0002] Isolators are used to prevent or allow current flow when powered on, reliably isolating the power distribution device from the live parts. They are widely used in photovoltaic, wind power, and other power systems. In isolators, a kick mechanism is typically incorporated into the operating module to rapidly disconnect the switch during opening and closing. The kick mechanism typically includes a linkage member linked to the input shaft, a kick member linked to the output shaft, and an energy storage member connected between the linkage member and the kick member. Both the linkage member and the kick member rotate. During the opening and closing process, the energy storage member first stores energy and then releases it, driving the kick member to rapidly open and close the moving contacts. At present, the common snap mechanisms in disconnectors mainly include two structures that use torsion springs and compression springs as energy storage parts. For example, the disconnector disclosed in patent CN202123242505.3 uses a torsion spring as the energy storage part of the snap mechanism. The two arms of the torsion spring cooperate with the rotatable linkage part and the snap part. During the opening and closing process, the two arms of the torsion spring are subjected to a large torque force, which affects the fatigue life; for example, the disconnector disclosed in patent CN202110738929.4 uses a compression spring as the energy storage part of the snap mechanism. The compression spring is connected to one end or both ends of the rotatable snap part. The snap part rotates in the first half of the movement. When it moves to the extreme compression position of the compression spring, the compression spring releases energy to assist the snap part in rotating in the second half of the movement. However, the installation space required for this snap mechanism is large, which has a greater impact on the overall volume of the disconnector. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide a disconnector snap structure and disconnector.

[0004] The technical solution adopted by the present invention is as follows: a snap structure of an isolating switch, comprising a housing assembly and a snap mechanism disposed in the housing assembly, wherein the snap mechanism comprises a snap member, a linkage member, an energy-gathering elastic member, a closing limit member, and an opening limit member;

[0005] The jump member is limited in the housing assembly so that it can only move linearly along the first direction X and has an opening position and a closing position at both ends of the sliding path, and is provided with a first abutment surface and a second abutment surface spaced a certain distance apart along the first direction X;

[0006] The linkage member is limited in the housing assembly so that it can only move linearly along the first direction X and is provided with a first abutting surface and a second abutting surface at both ends of the sliding path, which are spaced a certain distance apart along the first direction X;

[0007] The energy-gathering elastic member is a compression spring, which is limited between the jump member and the linkage member so that it can only perform telescopic movement along the first direction X to store / release energy, and the energy-gathering elastic member is also limited between the first abutting surface and the second abutting surface and between the first abutting surface and the second abutting surface;

[0008] The closing limiter is movable and has a locking position and an unlocking position. The closing limiter in the locking position limits the jumper so that it cannot move to the closing position, and acts on the closing limiter in the locking position to move the linkage member to the unlocking position in the path of the linkage member moving from the opening position to the closing position.

[0009] The trip limiter is movable and has a locking position and an unlocking position. The trip limiter in the locking position limits the jumper so that it cannot move to the trip position, and acts on the trip limiter in the locking position in the path of the linkage part moving from the closing position to the opening position to move it to the unlocking position.

[0010] Further preferably, the sudden jump member has two side plates arranged opposite to each other, the inner walls of the side plates are provided with a second sliding groove, and the two ends of the second sliding groove along the first direction X respectively constitute a first abutting surface and a second abutting surface;

[0011] The linkage member is arranged between two oppositely arranged side plates of the jump member and cooperates with the jump member to limit the linkage member so that the linkage member can only slide linearly along the first direction X. The linkage member is provided with a spring mounting groove, and the two ends of the spring mounting groove respectively form a first abutment surface and a second abutment surface;

[0012] The energy-gathering elastic member is limited in the spring mounting groove and the two sides thereof are protruded relative to the two sides of the linkage member. The protruding parts of the energy-gathering elastic member relative to the side faces of the linkage member are limitedly matched with the second sliding groove. The two ends of the energy-gathering elastic member are matched with the first abutting surface and the second abutting surface as well as the first abutting surface and the second abutting surface, so that the energy-gathering elastic member can only perform telescopic movements along the first direction X.

[0013] Further preferably, the inner wall of the side plate of the jumping member is provided with a first sliding groove arranged along the first direction X, and a limiting block is formed on the protrusion of the side wall of the linkage member. The limiting block is limited in the first sliding groove so that the linkage member and the jumping member form a limited sliding fit along the first direction X.

[0014] Further preferably, the jump member is a U-shaped member composed of a bottom plate and two oppositely arranged side plates connected to each other, the second sliding groove is arranged above the first sliding groove and is provided with a through groove to connect the two, and there is an opening above the second sliding groove.

[0015] Further preferably, the closing limiter and the opening limiter are respectively connected to limit elastic members, and the opening limiter and the closing limiter are kept in the locked position under the action of the limit elastic members.

[0016] Further preferably, the closing limiter located in the locking position and the jumper located in the opening position form a lock so that the jumper cannot move in the closing direction; the opening limiter located in the locking position and the jumper located in the closing position form a lock so that the jumper cannot move in the opening direction.

[0017] Further preferably, the closing limiter and the opening limiter each have a rotating shaft whose central axis is along a second direction Y perpendicular to the first direction X, and a stopper connected to the rotating shaft, wherein the rotating shaft is plugged into and matched with the inner wall of the housing assembly so that the opening limiter can rotate around the central axis of the rotating shaft;

[0018] The two ends of the jump member along the first direction X are respectively provided with a closing limit member matching groove and an opening limit member matching groove that match the closing limit member and the opening limit member. The closing limit member matching groove is provided with a first limit block that can abut and match with the closing limit member located in the locking position and a first release surface that can match with the closing limit member located in the unlocking position. The first limit block is arranged close to the outer end relative to the first release surface. The opening limit member matching groove is provided with a second limit block that can abut and match with the opening limit member located in the locking position and a second release surface that can match with the opening limit member located in the unlocking position. The second limit block is arranged close to the outer end relative to the second release surface.

[0019] An isolating switch provided with a kick structure as described above comprises an operating module and a contact module, wherein the operating module comprises a rotary motion input shaft and a rotary motion output shaft, and the contact module comprises a moving contact, wherein the rotary motion output shaft is linked with the moving contact so that the rotary motion of the rotary motion output shaft drives the moving contact to open and close the switch; a first transmission structure is provided between the linkage member and the rotary motion input shaft, and the first transmission structure converts the rotary motion of the rotary motion input shaft into linear motion of the linkage member along a first direction X; a second transmission structure is provided between the kick member and the rotary motion output shaft, and the second transmission structure converts the linear motion of the kick member along the first direction X into rotational motion of the rotary motion output shaft.

[0020] Further preferably, the first transmission structure includes a first gear, a second gear and a rack that are meshed together in sequence, the first gear is a bevel gear with a central axis arranged along a third direction Z, the second gear is a bevel gear with a central axis arranged along a second direction Y perpendicular to the first direction X, the rack is fixedly connected to the linkage member, the first gear is provided with a first rotational motion input shaft with a rotation center in the third direction Z perpendicular to the first direction X and the second direction Y, and the second gear is provided with a second rotational motion input shaft with a rotation center in the second direction Y.

[0021] Further preferably, the second transmission structure includes a driving member, and the driving member includes a connecting platform, on which a rotating output shaft and a driving block are formed, whose central axis is along a second direction Y perpendicular to the first direction X. The rotating output shaft and the housing assembly are limitedly cooperated so that the driving member can only rotate around the central axis of the rotating output shaft. A U-shaped driving groove is provided on the jumping member, and the driving block cooperates with the driving groove to form a jumping member sliding along the first direction X, driving the driving member to rotate around the central axis along the second direction Y.

[0022] Further preferably, the driving member includes a connecting column and two connecting platforms respectively connected to both ends of the connecting column, and the rotating output shaft protrusion is formed on the outer side surface of the connecting platform.

[0023] The beneficial effects of the present invention are as follows: The present invention provides a new jump structure of an isolating switch. Different from the rotational movement of the jump member and the linkage member in the existing conventional jump mechanism, the jump member and the linkage member of the present invention are linear motions. The energy-gathering elastic member adopts a compression spring limited between the jump member and the linkage member and enables it to only perform telescopic movements along the first direction X to store / release energy. During the opening and closing movements, the opening limit member or the closing limit member limits the jump member so that it cannot move to the opening position or the closing position, forming a linkage member that moves relative to the jump member to drive the energy-gathering elastic member to compress and store energy. After the linkage member moves to push the opening limit member or the closing limit member to unlock, the jump member quickly moves to the opening position or the closing position under the energy release of the energy-gathering elastic member. The movement is reliable and the overall volume is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0025] Figure 1 This is a schematic structural diagram of a photovoltaic isolating switch in an embodiment of the present invention;

[0026] Figure 2 This is an exploded schematic diagram of an operating module in one embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of an operating module in an embodiment of the present invention;

[0028] Figure 4 This is a schematic structural diagram of a bottom shell in an embodiment of the present invention;

[0029] Figure 5 This is a schematic structural diagram of a shell cover in one embodiment of the present invention;

[0030] Figure 6 This is a schematic structural diagram of an output transmission assembly in one embodiment of the present invention;

[0031] Figure 7 A schematic diagram of the three-dimensional structure of a sudden jump member at one angle in one embodiment of the present invention;

[0032] Figure 8 A schematic diagram of the three-dimensional structure of the kicking member from another angle in one embodiment of the present invention;

[0033] Figure 9 A cross-sectional view of a kicking member in one embodiment of the present invention;

[0034] Figure 10 A top view of a kicking member in one embodiment of the present invention;

[0035] Figure 11 A schematic structural diagram of a linkage member in an embodiment of the present invention;

[0036] Figure 12 A schematic diagram of the structure of the linkage member and the energy-gathering elastic member in one embodiment of the present invention;

[0037] Figure 13 A schematic structural diagram of a closing limiter and an opening limiter in one embodiment of the present invention;

[0038] Figure 14 A schematic diagram of a closing limiter in a locked position according to an embodiment of the present invention;

[0039] Figure 15 A schematic diagram of a closing limiter in an embodiment of the present invention in an unlocked position;

[0040] Figure 16 This is a schematic structural diagram of a driving member in one embodiment of the present invention;

[0041] Figure 17 A cross-sectional view of an operating module in an open state according to an embodiment of the present invention;

[0042] Figure 18 A cross-sectional view of an operating module in a closed state according to an embodiment of the present invention;

[0043] Figure 19 This is a schematic diagram of the operation of the forced release mechanism of the operating module in one embodiment of the present invention;

[0044] In the figure, the operating module 100, the contact module 200, the bottom shell 310, the first operating half hole 311, the second operating hole 312, the first driving through hole 313, the first positioning hole 1 314, the second positioning hole 1 315, the first limiting strip 316, the shell cover 320, the second operating half hole 321, the second driving through hole 322, the first positioning hole 2 323, the second positioning hole 2 324, the second limiting strip 325, the first Gear 410, first rotational motion input shaft 411, second gear 420, second rotational motion input shaft 421, rack 430, jumper 510, drive slot 511, closing limiter matching slot 512, first limit block 5121, first release surface 5122, opening limiter matching slot 513, second limit block 5131, second release surface 5132, first guide slot 514, second guide slot 515 , first sliding groove -516, second sliding groove -517, first abutting surface -5171, second abutting surface -5172, through groove -518, third sliding groove -519, breaking block -5191, linkage -520, spring mounting frame -521, first abutting surface -5211, second abutting surface -5212, limiting block -522, push block -523, first push-out block -524, second push-out block -525, closing limiter -530, connection Plate-531, extension piece-532, rotating shaft-533, fixed shaft-534, stop piece-535, limiting protrusion-536, opening limit piece-540, limiting elastic piece-550, energy-gathering elastic piece-560, driving piece-600, connecting column-610, first connecting platform-620, first driving block-621, first rotating output shaft-622, second connecting platform-630, second driving block-631, second rotating output shaft-632. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0046] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0047] The terms used herein, such as "up," "down," "front," "back," "left," "right," "inside," "outside," "top," "bottom," and "side," are intended solely to refer to the accompanying drawings. These terms are intended to illustrate and facilitate understanding of the present invention and are not intended to limit its scope.

[0048] The first direction X, the second direction Y, and the third direction Z mentioned in this embodiment are perpendicular to each other.

[0049] A photovoltaic isolating switch, such as Figure 1 As shown, it includes an operating module 100 and a contact module 200 .

[0050] like Figure 2 、 Figure 3 As shown, the operating module 100 includes a housing assembly, an output transmission assembly, a kick mechanism, and a driving member 600 .

[0051] The housing assembly includes a bottom shell 310 and a housing cover 320, which are connected to form a chamber for installing the output transmission assembly, the sudden jump mechanism and the driving member. Figure 4 As shown, the bottom shell 310 is provided with a first operating half hole 311, a second operating hole 312, a first driving through hole 313, a first positioning hole 314, a second positioning hole 315, and a first limiting strip 316. The first operating half hole 311 is provided on one side wall of the bottom shell 310. The second operating hole 312 and the first driving through hole 313 are circular holes provided on the bottom plate of the bottom shell 310 at different positions and with the central axis direction along the second direction Y. The first positioning hole 314, the second positioning hole 315, and the first limiting strip 316 are all provided on the bottom plate of the bottom shell 310. Figure 5 As shown, the shell cover 320 is provided with a second operating half hole 321, a second driving through hole 322, a first positioning hole 323, a second positioning hole 324, and a second limiting strip 325. The second operating half hole 321 is arranged on one side wall of the shell cover 320 and is combined with the first operating half hole 311 to form a first operating hole with a central axis direction along the third direction Z. The second driving through hole 322 is a circular hole arranged on the bottom plate of the shell cover 320 and with a central axis direction along the second direction Y. The second driving through hole 322 and the first driving through hole 313 are concentric circular holes. The first positioning hole 323, the second positioning hole 324, and the second limiting strip 325 are all arranged on the bottom plate of the shell cover 320. The first positioning hole 1 314 and the first positioning hole 2 323 are concentrically arranged to form a group of first positioning holes. The first positioning hole 2 323 and the second positioning hole 2 324 are concentrically arranged to form a group of second positioning holes.

[0052] like Figure 6As shown, the output transmission assembly includes a first gear 410, a second gear 420 and a rack 430 that are meshed in sequence; the first gear 410 is a bevel gear with a central axis arranged along the third direction Z, and is provided with a first rotational motion input shaft 411 with a central axis direction along the third direction Z. The first rotational motion input shaft 411 is arranged corresponding to the first operating hole, and the first gear 410 can be rotated around the third direction Z by driving the first rotational motion input shaft 411; the second gear 420 is a bevel gear with a central axis arranged along the second direction Y, and is provided with a second rotational motion input shaft 421 with a central axis direction along the second direction Y. The second rotational motion input shaft 421 is arranged corresponding to the second operating hole 312, and the second gear 420 can be rotated around the second direction Y; the rack 430 can slide in the first direction X. The first rotary motion input shaft 411 and the second rotary motion input shaft 421 can both be used to connect to the drive mechanism to realize the input of the opening and closing action of the operating module 100, and drive the rack 430 to slide along the first direction X through gear transmission. The drive mechanism can be an operating handle or an electric drive mechanism.

[0053] The sudden jump mechanism includes a sudden jump member 510 , a linkage member 520 , a closing limit member 530 , an opening limit member 540 , a limit elastic member 550 and an energy-gathering elastic member 560 .

[0054] like Figure 7-10 As shown, the jump member 510 is a U-shaped member consisting of a bottom plate and two oppositely arranged side plates. Figure 7 、 Figure 8 As shown, a U-shaped driving groove 511 with an open upper end is provided in the middle of the outer side walls of the two side plates of the jumper 510, and a closing limiter matching groove 512 and an opening limiter matching groove 513 are provided at both ends of the outer side walls of the two side plates, respectively. The closing limiter matching groove 512 is L-shaped, and is provided with a first limiting block 5121 close to the lower end and relatively close to the outer end and a first release surface 5122 close to the top and relatively close to the inner end. The opening limiter matching groove 513 is L-shaped, and is provided with a second limiting block 5131 close to the lower end and relatively close to the outer end and a second release surface 5132 close to the top and relatively close to the inner end. A first guide groove 514 and a second guide groove 515 are formed on the outer side walls of the two side plates, respectively. The first guide groove 514 and the second guide groove 515 cooperate with the first limiting strip 316 of the bottom shell 310 and the second limiting strip 325 of the shell cover 320 to form a limiting sliding effect on the jumper 510 along the first direction X. As shown Figure 9 、 Figure 10As shown, a first sliding groove 516 and a second sliding groove 517 arranged along the first direction X are provided on the inner walls of the two side plates of the jumping member 510, the second sliding groove 517 is arranged above the first sliding groove 516 and is provided with a through groove 518 to connect the two, the second sliding groove 517 is opened above, and the two ends of the second sliding groove 517 respectively constitute a first abutting surface 5171 and a second abutting surface 5172.

[0055] like Figure 11 As shown, the linkage member 520 is provided with a spring mounting frame 521. The spring mounting frame 521 is hollow to form a spring mounting groove. The two ends of the spring mounting groove along the first direction X respectively form a first abutment surface 5211 and a second abutment surface 5212. The rack 430 is fixed to the linkage member 520 and the two are linked together. Specifically, the rack 430 and the linkage member 520 adopt an integrally formed fixed connection structure. The linkage member 520 has a protruding limit block 522 formed on the side wall. The linkage member 520 is arranged between the two side plates of the jump member 510. The limit block 522 is limited in the first sliding groove 516, so that the linkage member 520 and the jump member 510 form a limited sliding fit along the first direction X. The upper end of the linkage member 520 has two upwardly protruding first and second push-out blocks 524 and 525.

[0056] like Figure 12 As shown, the energy-gathering elastic member 560 is a compression spring, which is arranged in the spring mounting groove of the spring mounting frame 521 of the linkage member 520 and has two sides protruding relative to the two sides of the linkage member 520. The protruding parts of the energy-gathering elastic member 550 relative to the side of the linkage member 520 are limited by the second sliding groove 517, so that the energy-gathering elastic member 550 can only perform telescopic movements along the first direction X. During the relative sliding process of the linkage member 520 and the jump member 510, the energy-gathering elastic member 560 is realized by changing the relative positions of the first abutting surface 5211 and the second abutting surface 5212, the first abutting surface 5171 and the second abutting surface 5172. The energy storage / release of energy is achieved. During assembly, first install the energy-gathering elastic member 560 into the spring mounting groove of the linkage member 520, and then install the linkage member 520 and the energy-gathering elastic member 560 from the opening above the jump member 510. The opening above the second sliding groove 517 facilitates the installation of the energy-gathering elastic member 560, and the setting of the through groove 518 facilitates the limiting block 522 to pass through the second sliding groove 517 and enter the first sliding groove 516.

[0057] The structures of the closing limiter 530 and the opening limiter 540 are as follows: Figure 13As shown, it includes a connecting plate 531, two extension members 532 arranged at a certain distance from each other at the upper end of the connecting plate 531, the outer end of the extension member 532 protrudes to form a rotating shaft 533 whose central axis direction is along the second direction Y, the rotating shaft 533 of the closing limit member 530 and the rotating shaft 533 of the opening limit member 540 are respectively positioned and matched with the first positioning hole and the second positioning hole of the housing assembly, so that the closing limit member 530 and the opening limit member 540 can rotate around the corresponding rotating shaft 533 respectively, the inner end of one extension member 532 protrudes to form a fixed axis 534 along the second direction Y, and a gap is formed between the fixed axis 534 and the other extension member 532, the two sides of the connecting plate 531 protrude to form two oppositely arranged stoppers 535, the outer end of the stopper 535 is a smooth convex surface, and the connecting plate 531 forms a limiting protrusion 536 between the two stoppers 535. The closing limit member 530 has the following features: Figure 14 The locked position shown and Figure 15 As shown in the unlocked position, in the locked position, the force center B of the stopper 535 is lower than the rotation pivot A. In the unlocked position, the force center B of the stopper 535 is higher than the rotation pivot A. The same is true for the opening limiter 540. The limiting elastic member 550 is a torsion spring, which is sleeved outside the fixed shaft 534 and has its two ends respectively abutting against the inner wall of the housing assembly and the connecting plate 531. The limiting elastic member 550 keeps the closing limiter 530 and the opening limiter 540 in the locked position. Figure 3 As shown, the closing limiter 530 and the opening limiter 540 are respectively arranged on both sides of the jumper 510, and the stopper 535 of the closing limiter 530 and the stopper 535 of the opening limiter 540 cooperate with the closing limiter matching groove 512 and the opening limiter matching groove 513 of the jumper 510. When the closing limiter 530 is in the locking position and the jumper 510 is in the opening position, the closing limiter 530 abuts against the first limit block 5121 of the closing limiter matching groove 512 to limit the jumper 510 so that it cannot move in the closing direction. When the limit member 540 is in the locked position and the jump member 510 is in the closed position, the opening limit member 540 cooperates with the second limit block 5131 of the opening limit member matching groove 513 to form a limit so that it cannot move in the opening direction. The limiting protrusion 536 of the closing limit member 530 and the limiting protrusion 536 of the opening limit member 540 respectively cooperate with the first pushing block 524 and the second pushing block 525 on both sides of the upper end of the linkage member 520, so that the linkage member 520 slides along the first direction X to push the closing limit member 530 and the opening limit member 540 from the locked position to the unlocked position.

[0058] The structure of the driving member 600 is as follows Figure 16As shown, it includes a connecting column 610 and a first connecting platform 620 and a second connecting platform 630 respectively connected to both ends of the connecting column 610. The outer sides of the first connecting platform 620 and the second connecting platform 630 are respectively protruded to form a first rotation output shaft 622 and a second rotation output shaft 632 set concentrically. The eccentric positions of the inner sides of the first connecting platform 620 and the second connecting platform 630 are respectively protruded to form a first driving block 621 and a second driving block 631. The first rotation output shaft 622 and the second rotation output shaft 632 are respectively plugged into the first driving through hole 313 and the second driving through hole 322 of the housing component to make the driving member 600 It can only rotate around the central axis of the first driving through hole 313 and the second driving through hole 322. The first connecting platform 620 and the second connecting platform 630 are respectively located on the outer sides of the two side plates of the jump member. The first driving block 621 and the second driving block 631 respectively cooperate with the two driving grooves 511 of the jump member 510, forming a jump member 510 sliding along the first direction X to drive the driving member 600 to rotate around the central axis along the second direction Y. The outer ends of the first rotation output shaft 622 and the second rotation output shaft 632 of the driving member 600 are both provided with driving connection grooves, both of which can serve as driving shafts for driving the contact module 200, that is, the driving mechanism of this embodiment can be as follows Figure 1 As shown, the contact module 200 is provided only on one side, or the contact modules 200 can be provided on both sides at the same time to form a central torque output function.

[0059] The opening and closing process of this embodiment is as follows: The position of the operating mechanism in the opening state of this embodiment is as follows: Figure 17As shown, at this time, the jump member 510 and the linkage member 520 are both located at the far left, and the closing limit member 530 located on the right is in a locked position under the action of the limiting elastic member 550 arranged on it, and the blocking member 535 of the closing limit member 530 is against the first limiting block 5121 of the closing limit member matching groove 512 on the right side of the jump member 510. Since the force center B of the blocking member 535 is lower than the rotation pivot A, the jump member 510 and the closing limit member 530 form a mutual locking effect, and the opening limit member 540 located on the left side is against the second release surface 5132 of the opening limit member matching groove 513 on the left side of the jump member 510 under the action of the second pushing block 525 of the linkage member 520, and the energy-gathering elastic member 560 is in an energy-releasing state. At this time, when the closing drive is performed, the output transmission assembly is actuated to move the linkage member 520 to the right, and the jump member 510 does not move under the locking of the closing limit member 530. The energy-gathering elastic member 560 compresses and stores energy. When the linkage member 520 moves to the right to the first push-up block 524 at its right end and abuts against the limiting protrusion 536 of the closing limit member 530, the closing limit member 530 is pushed to rotate to the unlocked position. Since the force center B of the stop member 535 is higher than the rotation pivot A, the jump member 510 interacts with the closing limit member 530, and the stop member 535 of the closing limit member 530 swings to leave the first limiting block 5121. The energy-gathering elastic member 560 releases energy to drive the jump member 510 to move to the right, driving the driving member 600 to rotate and output the closing action, until Figure 18 As shown in the closing state, the jump member 510 and the linkage member 520 are both located at the far right, while the opening operation is opposite.

[0060] The operating mechanism of this embodiment uses a sudden jump mechanism to realize the rapid opening and closing of the contact mechanism, avoiding adverse interference from human factors. When closing, the contacts are quickly connected, and there will be no phenomenon of seemingly connected but not connected. The contact pressure is stable, avoiding the welding problem; when opening, the contacts are quickly disconnected, the arcing time is short, and the arc has little harm to the contacts from burning, thereby improving the service life of the switch.

[0061] When the switch is poorly soldered, the driving force of the energy-gathering elastic member 560 of the sudden jump mechanism may not be sufficient to drive the contacts to open. In order to solve the above problem, this embodiment further provides a forced release mechanism between the sudden jump member 510 and the linkage member 520. Specifically, Figure 7 、 Figure 8 As shown, a third sliding groove 519 is formed in the middle of the upper end of the two side plates of the sudden jump member 510, and the end of the third sliding groove 519 close to the opening position constitutes a breaking block 5191, as shown in FIG. Figure 11As shown, a push block 523 is formed on the side wall of the linkage member 520. During the normal opening and closing process of the switch, the push block 523 slides in the third sliding groove 519. When the switch is in the closed state and the dynamic and static contacts are not welded, the output transmission component moves the linkage member 520, pushing the opening limit member 540 to rotate, releasing the lock on the jump member 510. Since the contacts are not welded, the jump structure will not jump, and the contact mechanism will not open. The rotation drive continues, as shown in FIG. Figure 19 As shown, the push block 523 of the linkage part 520 contacts the breaking block 5191 of the jump part 510 and prompts the jump part 510 to move toward the opening limit part 540 through the breaking block 5191. The jump part 510 transmits force to the moving and static contacts through the driving part 600 and the contact mechanism. When the force is sufficient to overcome the virtual welding force between the moving and static contacts, the moving and static contacts are separated and the switch is opened.

[0062] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A snap-action structure of an isolating switch, characterized in that: It includes a housing assembly and a sudden jump mechanism arranged in the housing assembly, wherein the sudden jump mechanism includes a sudden jump member, a linkage member, an energy-gathering elastic member, a closing limit member, and an opening limit member; The jump member is limited in the housing assembly so that it can only move linearly along the first direction X and has an opening position and a closing position at both ends of the sliding path, and is provided with a first abutment surface and a second abutment surface spaced a certain distance apart along the first direction X; The linkage member is limited in the housing assembly so that it can only move linearly along the first direction X and is provided with a first abutting surface and a second abutting surface at both ends of the sliding path, which are spaced a certain distance apart along the first direction X; The energy-gathering elastic member is a compression spring, which is limited between the jump member and the linkage member so that it can only perform telescopic movement along the first direction X to store / release energy, and the energy-gathering elastic member is also limited between the first abutting surface and the second abutting surface and between the first abutting surface and the second abutting surface; The sudden jump member has a side plate, the inner wall of the side plate is provided with a second sliding groove, and the two ends of the second sliding groove along the first direction X respectively form a first abutting surface and a second abutting surface; The linkage member is provided with a spring installation slot, and both ends of the spring installation slot constitute a first abutting surface and a second abutting surface respectively; The energy-gathering elastic member is limitedly located in the spring mounting groove and has a side surface opposite to the side projection of the linkage member. The portion of the energy-gathering elastic member opposite to the side projection of the linkage member is limitedly engaged with the second sliding groove. Both ends of the energy-gathering elastic member engage with the first abutting surface and the second abutting surface as well as the first abutting surface and the second abutting surface, so that the energy-gathering elastic member can only perform telescopic movement along the first direction X. The closing limiter is movable and has a locking position and an unlocking position. The closing limiter in the locking position limits the jumper so that it cannot move to the closing position, and acts on the closing limiter in the locking position to move the linkage member to the unlocking position in the path of the linkage member moving from the opening position to the closing position. The opening limiter is movable and has a locking position and an unlocking position. The opening limiter in the locking position limits the jumper so that it cannot move to the opening position, and acts on the opening limiter in the locking position to move it to the unlocking position in the path where the linkage member moves from the closing position to the opening position. The jump member is provided with a first limit block and a first release surface at one end thereof along the first direction X, and a second limit block and a second release surface at the other end thereof which cooperate with the opening limit member. The first limit block can be abutted and cooperated with the closing limit member located in the locked position, and the first release surface can cooperate with the closing limit member located in the unlocked position. The first limit block is arranged close to the outer end relative to the first release surface, the second limit block can be abutted and cooperated with the opening limit member located in the locked position, the second release surface can cooperate with the opening limit member located in the unlocked position, and the second limit block is arranged close to the outer end relative to the second release surface.

2. The kick structure of the disconnector according to claim 1, characterized in that: The jump piece has two side plates arranged opposite to each other; The linkage member is disposed between two oppositely disposed side plates of the jump member and cooperates with the jump member to limit the linkage member so that the linkage member can only slide linearly along the first direction X; The two sides of the energy-gathering elastic member are convex relative to the two sides of the linkage member.

3. The kick structure of the disconnector according to claim 2, characterized in that: The inner wall of the side plate of the jumping member is provided with a first sliding groove arranged along the first direction X, and a limiting block is formed on the protrusion of the side wall of the linkage member. The limiting block is limited in the first sliding groove so that the linkage member and the jumping member form a limited sliding fit along the first direction X.

4. The snap structure of the disconnector according to claim 1, characterized in that: The closing limiter and the opening limiter are respectively connected to limit elastic members, and the opening limiter and the closing limiter are kept in a locked position under the action of the limit elastic members.

5. The kick structure of the disconnector according to claim 4, characterized in that: The closing limiter at the locking position and the kick piece at the opening position form a lock so that the kick piece cannot move in the closing direction; the opening limiter at the locking position and the kick piece at the closing position form a lock so that the kick piece cannot move in the opening direction.

6. The kick structure of the disconnector according to claim 4, characterized in that: The closing limiter and the opening limiter both have a rotating shaft with a central axis along a second direction Y perpendicular to the first direction X, and a stopper connected to the rotating shaft. The rotating shaft is plugged into the inner wall of the housing assembly so that the opening limiter can rotate around the central axis of the rotating shaft. The two ends of the jump member along the first direction X are respectively provided with a closing limit member matching groove and an opening limit member matching groove that cooperate with the closing limit member and the opening limit member, the first limit block and the first release surface are arranged in the closing limit member matching groove, and the second limit block and the second release surface are arranged in the opening limit member matching groove.

7. A disconnector provided with a snap-action structure according to any one of claims 1 to 6, comprising an operating module and a contact module, wherein the operating module comprises a rotary motion input shaft and a rotary motion output shaft, and the contact module comprises a movable contact, wherein the rotary motion output shaft is linked to the movable contact so that the rotary motion of the rotary motion output shaft drives the opening and closing of the movable contact; characterized in that: A first transmission structure is provided between the linkage member and the rotary motion input shaft, and the first transmission structure converts the rotary motion of the rotary motion input shaft into linear motion of the linkage member along the first direction X. A second transmission structure is provided between the jump member and the rotary motion output shaft, and the second transmission structure converts the linear motion of the jump member along the first direction X into rotary motion of the rotary motion output shaft.

8. The disconnector according to claim 7, characterized in that: The first transmission structure includes a first gear, a second gear and a rack that are meshed together in sequence. The first gear is a bevel gear with a central axis arranged along a third direction Z. The second gear is a bevel gear with a central axis arranged along a second direction Y perpendicular to the first direction X. The rack is fixedly connected to a linkage member. The first gear is provided with a first rotational motion input shaft whose rotation center is in the third direction Z perpendicular to the first direction X and the second direction Y. The second gear is provided with a second rotational motion input shaft whose rotation center is in the second direction Y.

9. The disconnector according to claim 7, characterized in that: The second transmission structure includes a driving member, which includes a connecting platform. A rotating output shaft and a driving block are formed on the connecting platform, whose central axis is along a second direction Y perpendicular to the first direction X. The rotating output shaft and the housing assembly are limitedly matched so that the driving member can only rotate around the central axis of the rotating output shaft. A U-shaped driving groove is provided on the jumping member, and the driving block cooperates with the driving groove to form a jumping member sliding along the first direction X to drive the driving member to rotate around the central axis along the second direction Y.

10. The disconnector according to claim 9, characterized in that: The driving member includes a connecting column and two connecting platforms respectively connected to both ends of the connecting column, and the rotating output shaft protrusion is formed on the outer side surface of the connecting platform.

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