Kick structure of isolating switch and isolating switch

Abstract

The invention belongs to the field of low-voltage switches, and particularly relates to a kick structure of an isolating switch and the isolating switch, and the kick structure comprises a shell assembly, a kick piece, a linkage piece, an energy-gathering elastic piece, a closing limiting piece and an opening limiting piece. Different from rotary motion of a kick piece and a linkage piece in an existing conventional kick mechanism, the kick piece and the linkage piece of the kick mechanism do linear motion, the energy-gathering elastic piece adopts a pressure spring limited between the kick piece and the linkage piece, and the energy-gathering elastic piece can only do telescopic motion in the first direction X to store / release energy; the opening limiting piece or the closing limiting piece limits the kick piece so that the kick piece can not move to the opening position or the closing position, and the linkage piece moves relative to the kick piece to drive the energy-gathering elastic piece to compress and store energy and moves until the linkage piece pushes the opening limiting piece or the closing limiting piece to unlock. The kick piece quickly acts to the opening position or the closing position under the energy release of the energy-gathered elastic piece, the action is reliable, and the overall size 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] The isolating switch is used to prevent or allow the flow of current when the power is on, and to achieve reliable isolation between the power distribution device and the live part. It is widely used in photovoltaic, wind power and other power systems. In the isolating switch, in order to achieve rapid disconnection of the opening and closing action, a sudden jump mechanism is usually set in the operating module. The sudden jump mechanism usually includes a linkage member linked to the input shaft, a sudden jump member linked to the output shaft, and an energy storage member connected between the linkage member and the sudden jump member. Both the linkage member and the sudden jump member are rotational motions. During the opening and closing action, the energy storage member first stores energy and then releases energy, driving the sudden jump member to quickly open and close the moving contact. At present, the common sudden jump 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 sudden jump mechanism, and the two arms of the torsion spring cooperate with the rotatable linkage part and the sudden jump 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 sudden jump mechanism, and the compression spring is connected to one end or both ends of the rotatable sudden jump part. The sudden jump part rotates in the first half, and when it moves to the extreme compression position of the compression spring, the compression spring releases energy to assist the sudden jump part to rotate in the second half. However, this sudden jump mechanism requires a large installation space, 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 sudden jump structure of an isolating switch, comprising a housing assembly and a sudden jump mechanism arranged in the housing assembly, wherein the sudden jump mechanism comprises 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 is respectively in the opening position and the 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 a first abutting surface and a second abutting surface are respectively provided at both ends of the sliding path along the first direction X at a certain distance; 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 a telescopic action 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 closing limiter is movable and has a locking position and an unlocking position. The closing limiter at the locking position limits the jumper so that it cannot move to the closing position, and acts on the closing limiter at the locking position to move the linkage member to the unlocking position in the path where the linkage member moves from the opening position to the closing position. The opening switch limiter is movable and has a locking position and an unlocking position. The opening switch limiter located at the locking position limits the jumper so that it cannot move to the opening position, and acts on the opening switch limiter in the locking position in the path where the linkage part moves from the closing position to the opening position to move it to the unlocking position.

[0005] Further preferably, the 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; 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 installation groove, and the two ends of the spring installation groove respectively constitute a first abutment surface and a second abutment surface; The energy-gathering elastic member is limited in the spring mounting groove and has protrusions on both sides relative to 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 and 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.

[0006] 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.

[0007] 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 the second sliding groove has an opening above it.

[0008] 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 a locked position under the action of the limit elastic members.

[0009] Further preferably, the closing limit member located in the locking position and the jump member located in the opening position form a lock so that the jump member cannot move in the closing direction; the opening limit member located in the locking position and the jump member located in the closing position form a lock so that the jump member cannot move in the opening direction.

[0010] Further preferably, the closing limiter and the opening limiter both have a rotating shaft whose central axis direction is along a second direction Y perpendicular to the first direction X, and a stopper connected to the rotating shaft, and the rotating shaft is plugged 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; 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 which match with the closing limit member and the opening limit member. The closing limit member matching groove is provided with a first limit block which can be abutted and matched with the closing limit member located in the locking position and a first release surface which can be matched 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 which can abutted and matched with the opening limit member located in the locking position and a second release surface which can be matched 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.

[0011] A disconnector provided with a kick structure as described above comprises an operating module and a contact module, wherein the operating module comprises a rotational motion input shaft and a rotational motion output shaft, and the contact module comprises a moving contact, wherein the rotational motion output shaft is linked with the moving contact so that the rotational motion of the rotational 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 rotational motion input shaft, and the first transmission structure converts the rotational motion of the rotational 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 rotational 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 rotational motion output shaft.

[0012] 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 a linkage member, the first gear is provided with a first rotational motion input shaft with a rotation center in a 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.

[0013] 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, and 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, and 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 that slides along the first direction X and drives the driving member to rotate around the central axis along the second direction Y.

[0014] Further preferably, the driving member includes a connecting column and two connecting platforms respectively connected to two ends of the connecting column, and the rotating output shaft protrusion is formed on the outer side surface of the connecting platform.

[0015] The beneficial effects of the present invention are as follows: The present invention provides a new jump structure of an isolating switch, which is 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, and the energy-gathering elastic member adopts a compression spring limited between the jump member and the linkage member so that it can only perform telescopic action 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 relative to the jump member. The movement drives 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

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0017] Figure 1 A schematic diagram of the structure of a photovoltaic isolating switch in an embodiment of the present invention; Figure 2 An exploded schematic diagram of an operating module in an embodiment of the present invention; Figure 3 A schematic diagram of the internal structure of an operating module in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the bottom shell in one embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of a shell cover in one embodiment of the present invention; Figure 6 It is a structural schematic diagram of an output transmission assembly in one embodiment of the present invention; Figure 7 A schematic diagram of a three-dimensional structure of a sudden jump member at one angle in an embodiment of the present invention; Figure 8 A schematic diagram of the three-dimensional structure of a sudden jump member in another embodiment of the present invention from another angle; Fig. 9 A cross-sectional view of a kicking member in one embodiment of the present invention; Fig.10 A top view of a kicking member in one embodiment of the present invention; Fig.11 It is a structural schematic diagram of a linkage member in an embodiment of the present invention; Fig.12 It is a schematic diagram of the structure of the linkage member and the energy-gathering elastic member in one embodiment of the present invention; Fig.13 It is a schematic diagram of the structure of a closing limiter and an opening limiter in one embodiment of the present invention; Fig.14 It is a schematic diagram of a closing limiter in an embodiment of the present invention being located in a locking position; Fig.15 It is a schematic diagram of a closing limiter in an embodiment of the present invention being located in an unlocking position; Fig.16 A schematic diagram of the structure of a driving member in an embodiment of the present invention; Fig.17 A cross-sectional view of an operating module in an open state in an embodiment of the present invention; Fig.18 A cross-sectional view of an operating module in a closed state in an embodiment of the present invention; Fig.19 This is a schematic diagram of the action of the forced release mechanism of the operating module in one embodiment of the present invention; 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 rotation input shaft 411, second gear 420, second rotation 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-up block -524, second push-up 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

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for 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. The subsequent embodiments will not explain this one by one.

[0020] The directions and positions mentioned in the present invention, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only directions or positions with reference to the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but are not intended to limit the scope of protection of the present invention.

[0021] The first direction X, the second direction Y, and the third direction Z mentioned in this embodiment are perpendicular to each other.

[0022] A photovoltaic isolating switch, such as Figure 1 As shown, the operating module 100 and the contact module 200 are included.

[0023] like Figure 2 , Figure 3 As shown, the operating module 100 includes a housing assembly, an output transmission assembly, a sudden jump mechanism and a driving member 600 .

[0024] The housing assembly includes a bottom housing 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 arranged on a side wall of the bottom shell 310. The second operating hole 312 and the first driving through hole 313 are circular holes arranged at different positions on the bottom plate of the bottom shell 310 and the central axis direction is along the second direction Y. The first positioning hole 314, the second positioning hole 315, and the first limiting strip 316 are all arranged 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 a side wall of the shell cover 320 and forms a first operating hole with a central axis direction along the third direction Z after combining with the first operating half hole 311. 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 concentrically arranged 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, and the first positioning hole 2 323 and the second positioning hole 2 324 are concentrically arranged to form a group of second positioning holes.

[0025] 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 a third direction Z, and is provided with a first rotational motion input shaft 411 with a central axis 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 a second direction Y, and is provided with a second rotational motion input shaft 421 with a central axis 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 rotational motion input shaft 411 and the second rotational motion input shaft 421 can be connected to the driving mechanism to realize the input of the opening and closing action of the operating module 100, and the rack 430 is driven to slide along the first direction X through gear transmission. The driving mechanism can be an operating handle or an electric driving mechanism.

[0026] 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 .

[0027] like Figure 7-10 As shown, the jump member 510 is a U-shaped member consisting of a bottom plate and two oppositely disposed 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 walls of the two side plates of the jump member 510, and a closing limit member matching groove 512 and an opening limit member matching groove 513 are provided at both ends of the outer walls of the two side plates, respectively. The closing limit member 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 upper end and relatively close to the inner end, and the opening limit member 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 upper end and relatively close to the inner end. The first guide groove 514 and the second guide groove 515 are respectively formed on the outer walls of the two side plates, and the first guide groove 514 and the second guide groove 515 are respectively matched 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 jump member 510 along the first direction X. As shown Fig. 9 , Fig.10As shown, the inner walls of the two side plates of the jumping member 510 are provided with a first sliding groove 516 and a second sliding groove 517 arranged along the first direction X, 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 abutment surface 5171 and a second abutment surface 5172.

[0028] like Fig.11 As shown, the linkage member 520 is provided with a spring installation frame 521, the spring installation frame 521 is hollow to form a spring installation groove, and the two ends of the spring installation groove along the first direction X respectively form a first abutting surface 5211 and a second abutting surface 5212, the rack 430 is fixed on the linkage member 520 and the two are linked and matched, specifically, the rack 430 and the linkage member 520 adopt an integrally formed fixed connection structure. The side wall of the linkage member 520 is protruded to form a limiting block 522, the linkage member 520 is arranged between the two side plates of the jump member 510, and the limiting 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 match along the first direction X; the upper ends of the linkage member 520 are respectively protruded upward to form a first push-out block 524 and a second push-out block 525.

[0029] like Fig.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 its two sides are protruded relative to the two sides of the linkage member 520. The protruding part of the energy-gathering elastic member 550 relative to the side of the linkage member 520 is limitedly matched with the second sliding groove 517, so that the energy-gathering elastic member 550 can only perform telescopic action along the first direction X. In 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.

[0030] The structures of the closing limiter 530 and the opening limiter 540 are as follows: Fig.13As shown, it includes a connecting plate 531, two extension members 532 arranged at a certain distance on the upper end of the connecting plate 531, the outer end protrusion of the extension member 532 forms 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 protrusion of one of the extension members 532 forms 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 side protrusions of the connecting plate 531 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 a structure as shown in FIG. Fig.14 The locked position shown and Fig.15 In the unlocked position shown in the figure, in the locked position, the force center B of the stopper 535 is lower than the rotation pivot A, and in the unlocked position, the force center B of the stopper 535 is higher than the rotation pivot A, and the same is true for the opening limiter 540. The limiter elastic member 550 is a torsion spring, which is sleeved outside the fixed shaft 534 and has two ends respectively abutting against the inner wall of the housing assembly and the connecting plate 531. The limiter 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 locking position and the jump member 510 is in the closing 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, and 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 push-up block 524 and the second push-up 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 locking position to the unlocking position.

[0031] The structure of the driving member 600 is as follows: Fig.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 first connecting platform 620 and the second connecting platform 630 are respectively protruded on the outer sides to form a first rotating output shaft 622 and a second rotating output shaft 632 arranged concentrically, the first connecting platform 620 and the second connecting platform 630 are respectively protruded at eccentric positions on the inner sides to form a first driving block 621 and a second driving block 631, the first rotating output shaft 622 and the second rotating output shaft 632 are respectively plugged into the first driving through hole 313 and the second driving through hole 322 of the housing component so that 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 are respectively matched with the two driving grooves 511 of the jump member 510, so that the jump member 510 slides 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 rotating output shaft 622 and the second rotating output shaft 632 of the driving member 600 are both provided with driving connecting grooves, which can both be used as driving shafts of the driving contact module 200. That is, the driving mechanism of this embodiment can be as follows Figure 1 As shown, the contact module 200 is arranged only on one side, or the contact modules 200 may be arranged on both sides at the same time to form a central torque output effect.

[0032] 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: Fig.17As shown, at this time, the jump member 510 and the linkage member 520 are both located at the leftmost side, and the closing limit member 530 located on the right side is in a locked position under the action of the limiting elastic member 550 arranged thereon, and the retaining member 535 of the closing limit member 530 abuts 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 retaining 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 abuts 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 release state. When the closing drive is performed at this time, 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 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, thereby driving the driving member 600 to rotate and output the closing action, until the locking device 520 is unlocked. Fig.18 The position in the closed state is shown, at this time, the jump member 510 and the linkage member 520 are both located at the far right, and the opening operation is opposite.

[0033] The operating mechanism of this embodiment realizes rapid opening and closing of the contact mechanism through the jump mechanism, avoiding adverse interference from human factors. When closing, the contacts are quickly connected, and there will be no phenomenon of "seemingly connected" and "not really connected". The contact pressure is stable, avoiding the problem of welding. When opening, the contacts are quickly disconnected, the arcing time is short, and the arc has little harm to the contacts, thereby improving the service life of the switch.

[0034] When the switch is poorly welded, 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, a forced release mechanism is further provided between the sudden jump member 510 and the linkage member 520 in this embodiment. Specifically, Figure 7 , Figure 8 As shown, a third sliding groove 519 is formed in the middle of the upper ends of the two side plates of the jump member 510, and one end of the third sliding groove 519 close to the opening position constitutes a breaking block 5191. Fig.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 moving and static contacts are cold-welded, the output transmission component moves the linkage member 520, pushes the opening limit member 540 to rotate, and releases the lock on the jump member 510. Since the contacts are cold-welded, the jump structure will not jump, and the contact mechanism will not open. The rotation drive continues, as shown in FIG. Fig.19 As shown, the push block 523 of the linkage member 520 contacts the breaking block 5191 of the jump member 510 and causes the jump member 510 to move in the direction of the opening limit member 540 through the breaking block 5191. The jump member 510 transmits the force to the moving and static contacts through the driving member 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 separate and the switch is opened.

[0035] The above disclosure is only the preferred embodiment of the present invention, which 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 sudden jump structure of an isolating switch, characterized in that: It comprises a housing assembly and a sudden jump mechanism arranged in the housing assembly, wherein the sudden jump mechanism comprises 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 is respectively in the opening position and the 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 a first abutting surface and a second abutting surface are respectively provided at both ends of the sliding path along the first direction X at a certain distance; 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 a telescopic action 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 closing limiter is movable and has a locking position and an unlocking position. The closing limiter at the locking position limits the jumper so that it cannot move to the closing position, and acts on the closing limiter at the locking position to move the linkage member to the unlocking position in the path where the linkage member moves from the opening position to the closing position. The opening switch limiter is movable and has a locking position and an unlocking position. The opening switch limiter located at the locking position limits the jumper so that it cannot move to the opening position, and acts on the opening switch limiter in the locking position in the path where the linkage part moves from the closing position to the opening position to move it to the unlocking position.

2. The sudden jump structure of the isolating switch according to claim 1, characterized in that: The jump member has two side plates arranged opposite to each other, the inner wall of the side plates is 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; 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 installation groove, and the two ends of the spring installation groove respectively constitute a first abutment surface and a second abutment surface; The energy-gathering elastic member is limited in the spring mounting groove and has protrusions on both sides relative to 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 and 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.

3. The sudden jump structure of the isolating switch according to claim 2 is characterized in that: The inner wall of the side plate of the jump member is provided with a first sliding groove arranged along the first direction X, and a limiting block is protruded on the side wall of the linkage member. The limiting block is limited in the first sliding groove so that the linkage member and the jump member form a limited sliding cooperation along the first direction X.

4. The snap structure of the isolating switch 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 snap structure of the isolating switch according to claim 4, characterized in that: The closing limiter at the locking position and the kicking member at the opening position form a lock so that the kicking member cannot move in the closing direction; the opening limiter at the locking position and the kicking member at the closing position form a lock so that the kicking member cannot move in the opening direction.

6. The kick structure of the isolating switch according to claim 4, characterized in that: The closing limiter and the opening limiter both 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, and the rotating shaft is plugged 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; 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 which match with the closing limit member and the opening limit member. The closing limit member matching groove is provided with a first limit block which can be abutted and matched with the closing limit member located in the locking position and a first release surface which can be matched 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 which can abutted and matched with the opening limit member located in the locking position and a second release surface which can be matched 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.

7. A disconnector provided with a snap-action structure as claimed in 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, the contact module comprises a moving contact, and 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; characterized in that: A first transmission structure is provided between the linkage member and the rotational motion input shaft, and the first transmission structure converts the rotational motion of the rotational 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 rotational motion output shaft, and the second transmission structure converts the linear motion of the jump member along the first direction X into rotational motion of the rotational motion output shaft.

8. The isolating switch according to claim 7, characterized in that: The first transmission structure includes a first gear, a second gear and a rack that are meshed and connected 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 with a rotation center in a 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.

9. The isolating switch according to claim 7, characterized in that: The second transmission structure includes a driving member, and the driving member 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 jump member, and the driving block cooperates with the driving groove to form a jump 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 isolating switch according to claim 9, characterized in that: The driving member comprises a connecting column and two connecting platforms respectively connected to two ends of the connecting column, and the rotating output shaft protrusion is formed on the outer side surface of the connecting platform.

Images