Energy storage structure and rotating disconnector

Abstract

The present application relates to the field of low-voltage electrical apparatus, in particular to a kind of energy storage structure and a kind of rotary disconnecting switch comprising the energy storage structure, energy storage structure includes the operating shaft between closing position and opening position rotation, delay energy storage mechanism and locking mechanism, delay energy storage mechanism includes first energy storage spring and with operating shaft drive cooperation and rotates between energy release position and energy storage position rotary disc, locking mechanism is used to lock rotary disc in energy storage position, operating shaft is rotated from opening position to closing position, rotary disc is rotated from energy release position to energy storage position with operating shaft rotation, while driving first energy storage spring energy storage;The rotary disc is coaxially arranged with operating shaft;The rotary disc reaches energy storage position when or before operating shaft reaches closing position;The energy storage structure and rotary disconnecting switch, remote opening control function is reliable and stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of low-voltage electrical apparatus, in particular to an energy storage structure and a rotary disconnector comprising the energy storage structure. BACKGROUND

[0002] With the wide application of rotary disconnectors, new functional requirements are put forward for rotary disconnectors, that is, the rotary disconnector has a remote tripping function when the system line fails, and can be manually closed after the fault is cleared, and the remote tripping function does not affect the manual closing and opening operation of the disconnector.

[0003] The existing rotary disconnector with remote tripping function realizes the remote tripping function by setting a delay energy storage mechanism. Due to the structural constraints, the energy storage process of the delay energy storage mechanism and the closing of the switch cannot be synchronized, and the closing of the switch must be completed first, and then the energy storage of the delay energy storage mechanism is completed. After the switch is closed, the operator mistakenly believes that the energy storage of the delay energy storage mechanism has been completed, resulting in energy storage failure, which cannot perform remote opening operation when the system line fails, and safety hazards occur.

[0004] In addition, the structure of the existing rotary disconnector with remote tripping function, which realizes the remote tripping function without affecting the manual closing and opening operation of the disconnector, is complex and cumbersome to install.

[0005] In addition, the spring of the delay energy storage mechanism of the existing rotary disconnector with remote tripping function is sleeved on the operating shaft and in contact with the operating shaft. Firstly, it is easy to cause wear of parts, and secondly, the friction between the spring and the operating shaft affects the action performance, for example: the friction between the spring and the operating shaft causes power attenuation, when the friction is greater than the power output by the spring, the rotary disconnector appears an abnormal state between closing and opening, that is, the opening operation fails. SUMMARY

[0006] The present application aims to overcome at least one of the defects of the prior art, and provides an energy storage structure and a rotary disconnector comprising the energy storage structure, which has reliable and stable remote opening control function.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] An energy storage structure comprising an operating shaft, a delay energy storage mechanism and a locking mechanism, the delay energy storage mechanism comprising a first energy storage spring and a rotating disc;

[0009] The operating shaft rotates between the opening position and the closing position, the rotating disc rotates between the energy releasing position and the energy storage position, and the locking mechanism is used to lock the rotating disc at the energy storage position;

[0010] The operation shaft is driven by the rotating disc, and when the operation shaft rotates from the open position to the closed position, the rotating disc rotates from the energy storage position to the energy release position.

[0011] The rotating disc is coaxial with the operation shaft, and when the operation shaft reaches or before the closed position, the rotating disc reaches the energy storage position.

[0012] Further, the locking mechanism includes a locking piece, and the locking piece includes a locking piece locking portion;

[0013] The rotating disc includes a locking arm locking surface, and the locking arm locking surface is locked with the locking piece locking portion to keep the rotating disc in the energy storage position.

[0014] The locking arm locking surface turns over the locking piece locking portion when the operation shaft reaches or before the closed position.

[0015] Further, the rotating disc includes a first surface, and the operation shaft is provided with a driving finger, and the driving finger is in transmission cooperation with the first surface to drive the rotating disc to rotate to the energy storage position.

[0016] The end of the locking arm locking surface away from the rotating axis of the rotating disc is offset to the side of the first surface relative to the end of the locking arm locking surface close to the rotating axis of the rotating disc.

[0017] The locking arm locking surface is located outside the first surface in the radial direction of the rotating disc.

[0018] The included angle between the locking arm locking surface and the extension surface of the first surface is greater than or equal to 0° and less than or equal to 10°.

[0019] Further, when the locking mechanism releases the locking of the rotating disc, the first energy storage spring releases energy to drive the rotating disc to rotate from the energy storage position to the energy release position, and the rotating disc drives the operation shaft to rotate from the closed position to the open position.

[0020] Further, the rotating disc includes a rotating disc shaft hole and at least one rotating disc driven hole, the operation shaft passes through the rotating disc shaft hole, and the first surface is arranged on the side wall of the rotating disc driven hole.

[0021] Further, when the rotating disc is in the energy storage position, the operation shaft is free to rotate between the open position and the closed position.

[0022] Further, there is an open travel between the rotating disc and the operation shaft, and when the operation shaft rotates from the closed position to the open position, the rotating disc passes through the open travel.

[0023] Further, the open travel is arranged in the rotating disc driven hole, and when the rotating disc is in the energy storage position, the operation shaft rotates from the closed position to the open position, and the driving finger passes through the open travel while the rotating disc remains stationary.

[0024] Further, the rotating disc driven hole is a sector hole, the center of the sector hole coincides with the axis of the rotating disc; two ends of the sector hole in the circumferential direction are respectively provided with a first surface and a second surface, and the split gap idle stroke is arranged between the first surface and the second surface.

[0025] Further, the two sector holes are symmetrically arranged on the two sides of the operating shaft in the radial direction; the delay energy storage mechanism further comprises a driving key arranged on the operating shaft, and the two ends of the driving key protrude on the two ends of the operating shaft on the two sides in the radial direction as two driving fingers.

[0026] Further, the rotating disc further comprises a rotating disc main plate and a rotating disc locking arm, the rotating disc driven hole is arranged on the rotating disc main plate, the rotating disc locking arm is arranged on the edge of the rotating disc, the locking arm locking surface is arranged on the edge of the rotating disc locking arm, and the locking arm locking surface is not coplanar with the rotating disc main plate.

[0027] Further, the energy storage structure further comprises a first bushing rotatably arranged on the operating shaft; the first energy storage spring is a torsion spring arranged on the first bushing, one end of the torsion spring is matched with the rotating disc, and the other end is fixedly arranged.

[0028] Further, the first bushing is coaxially fixedly connected with the rotating disc and is arranged in synchronous rotation.

[0029] Further, the first bushing is provided with a bushing protrusion, the rotating disc is provided with a rotating disc opening, and the bushing protrusion is inserted into the rotating disc opening.

[0030] Further, the first bushing is provided with two groups of bushing protrusions, the sector hole of the rotating disc serves as the rotating disc opening, the two groups of bushing protrusions are arranged in the two groups of sector holes respectively, and the driving key of the delay energy storage mechanism is located between the two groups of bushing protrusions.

[0031] Further, the energy storage structure further comprises a housing upper cover, a housing partition plate and a gasket; one end of the first bushing is limitingly matched with the housing upper cover, the other end is matched with the rotating disc, the gasket is arranged on the housing partition plate as a rotating disc bearing structure, and the rotating disc is arranged on the gasket.

[0032] Further, the first bushing comprises a first bushing head and a first bushing body arranged coaxially, the outer diameter of the first bushing head is greater than the outer diameter of the first bushing body and the outer diameter of the first spring helix, one end of the first bushing body is connected with the first bushing head, the other end is matched with the rotating disc, and the first spring helix is arranged on the first bushing body.

[0033] A rotating disconnecting switch comprises the energy storage structure.

[0034] The energy storage structure of the application can complete energy storage during the closing operation of the operation shaft, that is, the delay energy storage mechanism completes energy storage before or at the time of closing of the operation mechanism, avoiding the failure of energy storage leading to the failure of remote opening control operation.

[0035] In addition, the first face and the second face are provided with an opening stroke, which realizes the remote tripping function without affecting the manual opening and closing operation, and has simple structure, easy production and assembly.

[0036] In addition, the first energy storage spring is sleeved on the first bushing, avoiding the situation that the first energy storage spring is locked during torsional energy storage, and better fixing the first energy storage spring to prevent its deflection and ensure the reliable and stable work of the delay energy storage mechanism; the first bushing is limited on the disc bearing structure in cooperation with the disc, which is conducive to keeping the disc in a horizontal state (that is, perpendicular to the axial direction of the operation shaft), avoiding the warping of the disc under the action of the torsional moment of the first energy storage spring, and ensuring the reliable and stable work of the delay energy storage mechanism.

[0037] In addition, the first bushing is coaxially fixed and connected with the disc and is synchronously rotated, the first bushing provides radial support for the disc, avoiding the radial friction between the disc and the operation shaft, improving the smoothness of the disc, reducing the wear of the disc and the operation shaft, and prolonging the service life of the product.

[0038] The rotary disconnecting switch of the application includes the energy storage structure, and the remote opening control function is reliable and stable, ensuring the reliable and stable work of the rotary disconnecting switch. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structural schematic diagram of the disconnecting switch of the application;

[0040] Figure 2 is a projection view of the delay energy storage mechanism, the locking mechanism and the tripping mechanism of the application, and the delay energy storage mechanism is in the energy storage state;

[0041] Figure 3 is a three-dimensional structural schematic diagram of the delay energy storage mechanism, the locking mechanism and the tripping mechanism of the application from one perspective, and the delay energy storage mechanism is in the energy storage process;

[0042] Figure 4 is a projection view of the delay energy storage mechanism, the locking mechanism and the tripping mechanism of the application, and the delay energy storage mechanism is in the energy storage state;

[0043] Figure 5 is a three-dimensional structural schematic diagram of the delay energy storage mechanism, the locking mechanism and the tripping mechanism of the application from another perspective, and the delay energy storage mechanism is in the energy storage state;

[0044] Figure 6 This is an exploded view of the time-delay energy storage mechanism of the present invention;

[0045] Figure 7 This is a schematic diagram of the assembly structure of the turntable, operating shaft, drive key, gasket and housing partition of the present invention;

[0046] Figure 8a This is a three-dimensional structural diagram of the turntable of the present invention;

[0047] Figure 8b This is a projected view of the turntable of the present invention;

[0048] Figure 9 This is a schematic diagram of the structure of the first bushing of the present invention;

[0049] Figure 10 This is a cross-sectional schematic diagram of the housing of the device of the present invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Operating device; 1-1 Housing base; 1-2 Housing partition; 1-25 Housing partition spring limiting groove; 1-26 Turntable stop; 1-3 Housing top cover; 100s first space; 200s second space; p partition plate; 1-4 Operating shaft; 1-40 Operating shaft insertion hole; 1-5 Gasket; 1-6 Locking fastener; 1-60 Locking fastener main board; 1-61 Locking fastener locking part; 1-7r Locking fastener reset element; 1-7 First bushing; 1-70 First bushing body; 1-71 First bushing head; 1-72 Bushing protrusion; 1-8 First storage 1-80 First spring fixed end; 1-81 First spring driven end; 1-9 Turntable; 1-90 Turntable main board; 1-91 Turntable shaft hole; 1-92 Turntable locking arm; 1-920 Turntable locking arm mating surface; 1-921 Locking arm locking surface; 1-93 Turntable mating arm; 1-930 Turntable mating arm mating side edge; 1-931 Turntable mating arm limiting side edge; 1-94 Turntable driven hole; 1-940 First surface; 1-941 Second surface; 1-10 Drive key; 1-11 Tripping device; 2 Switch body; 4 Handle. Detailed Implementation

[0052] The specific embodiments of the energy storage structure of the present invention are further described below with reference to the accompanying drawings. The energy storage structure of the present invention is not limited to the descriptions in the following embodiments.

[0053] This invention discloses a disconnecting switch, preferably a rotary disconnecting switch, and more preferably a remotely controlled rotary disconnecting switch.

[0054] like Figure 1 As shown, the disconnecting switch of the present invention includes an operating device 1 and a switch body 2 connected to the circuit. The operating device 1 drives the switch body 2 to connect or disconnect the circuit.

[0055] As shown in Figures 2-7 , the operating device 1 comprises an energy storage structure, a real-time energy storage mechanism (not shown in the figure) and a tripping mechanism, the energy storage structure comprises an operating shaft 1-4 arranged to rotate around its own axis, a time-delay energy storage mechanism and a locking mechanism, the operating shaft 1-4 is used to drive the real-time energy storage mechanism and the time-delay energy storage mechanism to store energy, the operating shaft 1-4 can rotate between an open position and a closed position, and the operating shaft 1-4 drives the real-time energy storage mechanism to store energy first and then release energy when rotating, so that the operating device 1 drives the switch body 2 to normally open and close. The operating shaft 1-4 drives the time-delay energy storage mechanism to store energy when rotating from the open position to the closed position, the locking mechanism is used to lock the time-delay energy storage mechanism in the energy storage state, and the tripping mechanism is used to trigger the locking mechanism to be unlocked with the time-delay energy storage mechanism, so that the time-delay energy storage mechanism releases energy, and the operating device 1 drives the switch body 2 to open. The tripping mechanism can be remotely controlled, thereby realizing the remote opening control function of the disconnecting switch. Further, the operating shaft 1-4 reciprocally rotates in two opposite directions to rotate between the open position and the closed position.

[0056] As shown in Figure 1 and 10 , the operating device 1 further comprises a device housing, and the time-delay energy storage mechanism, the real-time energy storage mechanism, the locking mechanism and the tripping mechanism are all arranged in the device housing. Further, as shown in Figure 10 , the device housing comprises a first space 100s and a second space 200s arranged along the axial direction of the operating shaft 1-4, a partition plate p is arranged between the first space 100s and the second space 200s, the time-delay energy storage mechanism is arranged in the first space 100s, the real-time energy storage mechanism is arranged in the second space 200s, the partition plate p is provided with a partition plate shaft hole for the operating shaft 1-4 to pass through, the operating shaft 1-4 is inserted in the first space 100s and the second space 200s and cooperates with the time-delay energy storage mechanism and the real-time energy storage mechanism respectively, one end of the operating shaft 1-4 protrudes outside the device housing for operation, and the other end is inserted in the second space 200s after sequentially passing through the first space 100s and the partition plate p. Further, the device housing comprises a housing upper cover 1-3, a housing partition plate 1-2 and a housing base 1-1 which are sequentially cooperated, the housing upper cover 1-3 and the housing partition plate 1-2 are buckled to form the first space 100s, the housing partition plate 1-2 and the housing base 1-1 are buckled to form the second space 200s, and the housing partition plate 1-2 comprises the partition plate p.

[0057] As shown in Figure 1 , the operating device 1 further comprises a handle 4, and one end of the operating shaft 1-4 away from the real-time energy storage mechanism is an operating shaft connecting end used to be connected with the handle 4 by plug-in connection; an external force drives the operating shaft 1-4 to rotate between the closed position and the open position through the handle 4.

[0058] The real-time energy storage mechanism includes a second energy storage spring, when the operating shaft 1-4 rotates between the open position and the closed position, the second energy storage spring is driven to store energy first and release energy later, to drive the operating device 1 to quickly switch between the closed state and the open state, so as to drive the switch body 2 to quickly break or connect the circuit; that is, the operating shaft 1-4 is used to output the opening or closing operating force to the real-time energy storage mechanism, so that the real-time energy storage mechanism stores energy first and releases energy later. Further, during the energy storage process of the second energy storage spring, the switch body 2 does not act, and when the second energy storage spring releases energy, the switch body 2 is driven to quickly break or connect the circuit. The real-time energy storage mechanism can be realized by the existing technology, and the detailed structure is not described here.

[0059] As shown in Figures 5-6 , it is one embodiment of the delay energy storage mechanism.

[0060] When the operating shaft 1-4 rotates from the open position to the closed position in the open state of the operating device 1, the delay energy storage mechanism is switched from the energy release state to the energy storage state and is locked with the locking mechanism to remain in the energy storage state; in the energy storage state, the operating shaft 1-4 can be freely switched between the closed position and the open position under external force operation without changing the state of the delay energy storage mechanism; when the trip mechanism receives the remote opening signal and acts in the closed state of the operating device 1, the locking mechanism and the delay energy storage mechanism are unlocked, the delay energy storage mechanism releases energy and drives the operating device 1 to switch from the closed state to the open state, and the operating device 1 drives the switch body 2 to break the circuit. Further, in the closed state of the operating device 1, the delay energy storage mechanism releases energy to drive the operating shaft 1-4 to rotate from the closed position to the open position, and then the operating shaft 1-4 drives the operating device 1 to switch to the open state through the real-time energy storage mechanism, that is, the transmission path of the delay energy storage mechanism to drive the operating device 1 to open is: delay energy storage mechanism→operating shaft 1-4→real-time energy storage mechanism. Compared with the delay energy storage mechanism directly acting on the real-time energy storage mechanism in the prior art, the overall structure of the operating device is simplified, and the working stability and reliability are improved. In this embodiment, the rotary disconnector needs to output the opening or closing operating force through the operating shaft 1-4, and complete the opening operation or closing operation through the real-time energy storage mechanism, whether it is manually operated or remotely controlled.

[0061] As shown in Figures 2-7 , one improvement of the present application is that the delay energy storage mechanism:

[0062] The time delay energy storage mechanism of the embodiment comprises a rotating disc 1-9 and a first energy storage spring 1-8; the rotating disc 1-9 is capable of rotating between an energy releasing position and an energy storage position, the operating shaft 1-4 is in driving cooperation with the rotating disc 1-9, during the rotation of the operating shaft 1-4 from the open position to the closed position, the rotating disc 1-9 is driven to rotate from the energy releasing position to the energy storage position, the rotating disc 1-9 drives the first energy storage spring 1-8 to store energy so that the first energy storage spring 1-8 is switched to the energy storage state; the rotating disc 1-9 is locked by the locking mechanism in the energy storage position, so that the rotating disc 1-9 is kept in the energy storage position and is prevented from rotating to the energy releasing position; the rotating disc 1-9 reaches the energy storage position when or before the operating shaft 1-4 reaches the closed position, that is, the time delay energy storage mechanism completes the energy storage when or before the operating shaft 1-4 completes the closing operation; in the existing rotary disconnecting switch, the tripper reset of the operating device and the time delay energy storage mechanism are separately actuated, when the closing operation is performed, the closing operation is first completed, then the energy storage operation of the time delay energy storage mechanism is completed, and then the reset of the tripper is completed at the same time when the time delay energy storage mechanism completes the energy storage operation; the above sequence is a fixed sequence, once the sequence is adjusted, the closing operation cannot be completed or the time delay energy storage mechanism cannot store enough energy to drive the operating device to open, that is, the time delay energy storage mechanism cannot drive the real-time energy storage mechanism to drive the disconnecting switch to open (in other words, the energy stored in the time delay energy storage mechanism is not enough for the real-time energy storage mechanism to complete the energy storage and enter the energy releasing process); in the embodiment, the rotating disc 1-9 reaches the energy storage position when or before the operating shaft 1-4 reaches the closed position, so as to ensure that the time delay energy storage mechanism can complete the energy storage during the closing operation of the operating shaft 1-4, and avoid the failure of the time delay energy storage mechanism to store energy, which leads to the failure of the remote opening control operation; when the locking mechanism is driven by the tripping mechanism to release the locking of the rotating disc 1-9, the first energy storage spring 1-8 releases energy to drive the rotating disc 1-9 to rotate from the energy storage position to the energy releasing position, and the first energy storage spring 1-8 is switched to the energy releasing state, and the rotating disc 1-9 drives the operating shaft 1-4 to rotate from the closed position to the open position.

[0063] As Figures 2-7As shown, the locking member 1-6 of the locking mechanism includes a locking member locking portion 1-61; the rotating disc 1-9 is coaxially arranged with the operating shaft 1-4 and includes a locking arm locking surface 1-921, which is in locking cooperation with the locking member locking portion 1-61 to keep the rotating disc 1-9 in the energy storage position; when the rotating disc 1-9 is in the energy release position, the locking arm locking surface 1-921 faces away from the locking member locking portion 1-61, and when the rotating disc 1-9 is in the energy storage position, the locking arm locking surface 1-921 faces the locking member locking portion 1-61 and is in locking cooperation with the locking member locking portion 1-61; the locking arm locking surface 1-921 turns past the locking member locking portion 1-61 when or before the operating shaft 1-4 reaches the closed position, and after the energy storage structure is switched to the closed state by the operating shaft 1-4 reaching the closed position, the locking arm locking surface 1-921 is in limiting cooperation with the locking member locking portion 1-61 to prevent the rotating disc 1-9 from rotating to the open position, so that the energy storage process of the time-delay energy storage mechanism is synchronized with the closing process of the operating device 1 (i.e., the process of the operating shaft 1-4 rotating from the open position to the closed position) or the former is completed earlier than the latter, thereby ensuring that the time-delay energy storage mechanism successfully completes the energy storage to ensure the effectiveness of the remote open control function; that is to say: at the moment when the operating shaft 1-4 rotates to the closed position to switch the operating device 1 to the closed state, the locking arm locking surface 1-921 turns past the locking member locking portion 1-61 and reaches the energy storage position, and the locking arm locking surface 1-921 is in limiting cooperation with the locking member locking portion 1-61 to keep the rotating disc 1-9 in the energy storage position; or, during the process of the operating shaft 1-4 rotating from the open position to the closed position, at the moment when the operating shaft 1-4 rotates to a preset position and has not reached the closed position but the operating device 1 is closed, the locking arm locking surface 1-921 turns past the locking member locking portion 1-61, and after the operating shaft 1-4 continues to rotate to the closed position to switch the operating device 1 to the closed state, the first energy storage spring 1-8 drives the rotating disc 1-9 to rotate back (i.e., the rotating disc 1-9 rotates to the energy release position) by a smaller angle, and then the locking arm locking surface 1-921 is in limiting cooperation with the locking member locking portion 1-61 to keep the rotating disc 1-9 in the energy storage position. After receiving the tripping signal, the tripping device 1-11 drives the locking member 1-6 and the rotating disc 1-9 to be out of locking cooperation, the first energy storage spring 1-8 drives the rotating disc 1-9 to rotate from the energy storage position to the energy release position, and the rotating disc 1-9 drives the operating shaft 1-4 to rotate from the closed position to the open position.

[0064] As Figures 7-8bAs shown, the turntable 1-9 further includes a first surface 1-940, and the rotation axis of the turntable 1-9 is located on the extended surface of the first surface 1-940. The energy storage structure also includes a drive finger disposed on the operating shaft 1-4 and rotating synchronously therewith. In this embodiment, the drive finger is a drive key 1-10 protruding radially on the operating shaft 1-4. The drive finger is in transmission cooperation with the first surface 1-940 to drive the turntable 1-9 to rotate towards the energy storage position. Further, the turntable 1-9 includes a turntable shaft hole 1-91 and at least one turntable driven hole 1-94. The first surface 1-940 is provided on the side wall of the turntable driven hole 1-94. The operating shaft 1-4 passes through the turntable shaft hole 1-91, and the drive finger is located inside the turntable driven hole 1-94.

[0065] Furthermore, the end of the locking arm locking surface 1-921 away from the rotation axis of the turntable 1-9 is offset towards the side where the first surface 1-940 is located, relative to the end of the locking arm locking surface 1-921 near the rotation axis of the turntable 1-9 (that is, the locking arm locking surface 1-921 gradually tilts towards the first surface 1-940 from the end near the rotation axis of the turntable 1-9 to the end away from the rotation axis of the turntable 1-9, and the vertical distance between the end of the locking arm locking surface 1-921 near the rotation axis of the turntable 1-9 and the first surface 1-940 is greater than the vertical distance between the end of the locking arm locking surface 1-921 away from the rotation axis of the turntable 1-9 and the first surface 1-940); the locking arm locking surface 1-921 is positioned relative to the first surface 1-940 near the energy release position of the turntable 1-9. The first surface 1-940 is positioned near the energy storage position of the turntable 1-9 relative to the locking arm locking surface 1-921. The locking arm locking surface 1-921 is located radially outward of the first surface 1-940 on the turntable 1-9. The angle between the extended surfaces of the locking arm locking surface 1-921 and the first surface 1-940 is greater than or equal to 0° and less than or equal to 10°, and this angle is θ. When θ=0°, the turntable 1-9 reaches the energy storage position at the same time as the operating shaft 1-4 reaches the closing position. When θ>0° and ≤10°, the turntable 1-9 reaches the energy storage position before the operating shaft 1-4 reaches the closing position. This ensures that the locking arm locking surface 1-921 rotates past the locking part 1-61 of the locking fastener 1-6 when or before the operating shaft 1-4 reaches the closing position, so that the time-delay energy storage mechanism completes the energy storage operation. Furthermore, the radial direction of the turntable 1-9 refers to the direction that radiates outward from the axis of the turntable 1-9 within the plane containing the turntable 1-9.

[0066] Specifically, such as Figure 8a In the direction shown, with Figure 8a The top, bottom, left, and right are the top, bottom, left, and right of the turntable 1-9. The locking arm locking surface 1-921 tilts to the right from the bottom to the top.

[0067] The automatic transfer switch of the embodiment is used to realize remote opening control function without affecting the opening function of the driven switch: when the rotating disc 1-9 is in the energy storage position, the operating shaft 1-4 is avoided; when the operating device 1 is in the closing state, i.e. the operating shaft 1-4 is in the closing position, there is an opening air gap between the rotating disc 1-9 and the operating shaft 1-4; when the operating shaft 1-4 is driven to switch the operating device 1 to the opening state from the closing position to the opening position, the operating shaft 1-4 passes through the opening air gap relative to the rotating disc 1-9, and the rotating disc 1-9 will not be driven to rotate, i.e. the state of the time delay energy storage mechanism will not be changed.

[0068] As shown in Figures 7-8b , further, the rotating disc driven hole 1-94 is provided with an opening air gap, when the rotating disc 1-9 is in the energy storage position, the operating shaft 1-4 is driven to pass through the opening air gap from the closing position to the opening position, and the rotating disc 1-9 remains stationary. Further, the side wall of the rotating disc driven hole 1-94 is further provided with a second surface 1-941, the second surface 1-941 and the first surface 1-940 are located at both ends of the driving finger stroke, the first surface 1-940 and the second surface 1-941 are two opposite surfaces in the rotating disc driven hole 1-94, and the opening air gap is provided between the first surface 1-940 and the second surface 1-941, and when the operating shaft 1-4 is in the closing position, the second surface 1-941 and the driving finger form an opening air gap.

[0069] When the operating shaft 1-4 is in the opening position and the rotating disc 1-9 is in the energy releasing position, the driving finger is in contact with or close to the first surface 1-940, when the operating shaft 1-4 rotates from the opening position to the closing position, the first surface 1-940 is pushed by the driving finger to drive the rotating disc 1-9 to rotate from the energy releasing position to the energy storage position, the rotating disc 1-9 drives the first energy storage spring 1-8 to store energy, and before or when the operating shaft 1-4 reaches the closing position, the locking arm locking surface 1-921 of the rotating disc 1-9 turns over the locking part 1-61 of the locking piece, and can be locked in the energy storage position by the locking piece 1-6, and the first energy storage spring 1-8 remains in the energy storage state. When the operating shaft 1-4 is in the closing position, the driving finger is in contact with or close to the first surface 1-940, and an opening air gap is formed between the driving finger and the second surface 1-941, and when the operating shaft 1-4 rotates from the closing position to the opening position, the driving finger rotates between the first surface 1-940 and the second surface 1-941, and will not drive the rotating disc 1-9 to rotate in the opposite direction, i.e. will not drive the rotating disc 1-9 to rotate to the energy releasing position. When the operating shaft 1-4 is in the closing position, the driving finger is in contact with or close to the first surface 1-940, and the locking piece 1-6 is disengaged from the rotating disc 1-9, the first energy storage spring 1-8 releases energy to drive the rotating disc 1-9 to rotate from the energy storage position to the energy releasing position, and the rotating disc 1-9 acts on the driving finger through the first surface 1-940 to drive the operating shaft 1-4 to rotate from the closing position to the opening position.

[0070] As shown in Figures 7-8b , the turntable 1-9 further comprises a turntable main plate 1-90 and a turntable locking arm 1-92, the turntable main plate 1-90 is coaxial with the operation shaft 1-4, a turntable driven hole 1-94 is arranged on the turntable main plate 1-90, the turntable locking arm 1-92 is arranged on the edge of the turntable main plate 1-90, the turntable locking arm 1-92 is provided with a locking arm locking surface 1-921, the locking arm locking surface 1-921 is arranged on the edge of the turntable locking arm 1-92, and the locking arm locking surface 1-921 is not coplanar with the turntable main plate 1-90. Further, as shown in Figures 8a-8b , the rotation plane of the turntable main plate 1-90 (i.e. the plane where the turntable main plate 1-90 is located) is perpendicular to the axial direction of the operation shaft 1-4, the plane where the turntable locking arm 1-92 is located is parallel to the plane where the turntable main plate 1-90 is located, and the turntable locking arm 1-92 is preferably coplanar with the turntable main plate 1-90.

[0071] Specifically, as shown in Figures 7-8b , the turntable driven hole 1-94 is a sector-shaped hole, the center of the sector-shaped hole coincides with the axis of the turntable 1-9; the two ends in the circumferential direction of the sector-shaped hole are respectively provided with a first surface 1-940 and a second surface 1-941. Further, the two sector-shaped holes are symmetrically arranged on the two sides of the operation shaft 1-4 in the radial direction; the delay energy storage mechanism further comprises a driving key 1-10 arranged on the operation shaft 1-4, the two ends of the driving key 1-10 protrude on the two ends of the operation shaft 1-4 in the radial direction as two driving fingers. Further, the middle of the turntable main plate 1-90 is provided with a turntable shaft hole 1-91 through which the operation shaft 1-4 passes, and the radial inner ends of the two sector-shaped holes are in communication with the turntable shaft hole 1-91; the operation shaft 1-4 is provided with an operation shaft insertion hole 1-40 for mounting the driving key 1-10.

[0072] Further, as shown in Figures 8a-8b , the turntable locking arm 1-92 comprises a locking arm matching part, which is a triangular plate structure, the first side of which is connected with the turntable main plate 1-90, the second side is limitedly matched with the locking part locking surface, and the third side is matched with the locking part guide surface. Further, the turntable locking arm 1-92 comprises a turntable locking arm matching surface 1-920 and a turntable locking arm locking surface 1-921, the turntable locking arm matching surface 1-920 is an inverted chamfered surface arranged on the third side and matched with the locking part guide surface, and the turntable locking arm locking surface 1-921 is matched with the locking part locking surface to lock the turntable 1-9 in the energy storage position.

[0073] As shown in Figures 3-6As shown, the first energy storage spring 1-8 is a torsion spring, which is sleeved on the operation shaft 1-4, one end of which is the first spring fixed end 1-80 and is fixedly arranged (for example, fixedly arranged on the device housing), and the other end is the first spring driven end 1-81 and cooperates with the rotating disc 1-9; the rotating disc 1-9 rotates from the energy releasing position to the energy storage position, drives the first spring driven end 1-81 to swing, and makes the first energy storage spring 1-8 store energy in torsion. Further, the first energy storage spring 1-8 comprises a first spring helix, which is sleeved on the operation shaft 1-4, and the first spring fixed end 1-80 and the first spring driven end 1-81 are respectively connected to two ends of the first spring helix. Further, as shown in Figure 3 and 7 As shown, the housing partition plate 1-2 is provided with a housing partition plate spring limiting groove 1-25, and the first spring fixed end 1-80 is arranged in the housing partition plate spring limiting groove 1-25. Further, the housing partition plate 1-2 is also provided with a rotating disc stop table 1-26, and the housing partition plate spring limiting groove 1-25 is arranged on the rotating disc stop table 1-26.

[0074] As other embodiments, the first energy storage spring 1-8 is a linear compression spring, one end of which is rotatably arranged on the housing partition plate 1-2 of the device housing, and the other end is rotatably connected to the rotating disc 1-9; the rotating disc 1-9 rotates from the energy releasing position to the energy storage position, so that the first energy storage spring 1-8 is compressed to store energy, and the energy storage position of the rotating disc 1-9 is before the dead point position of the first energy storage spring 1-8. The dead point position of the first energy storage spring 1-8 refers to the position of the first energy storage spring 1-8 when the geometric axis of the first energy storage spring 1-8 and the axis of the rotating disc 1-9 are located on the same straight line. Of course, when the first energy storage spring 1-8 is a torsion spring, it can also be arranged in the following manner: the two ends of the torsion spring are rotatably connected to the housing partition plate 1-2 and the rotating disc 1-9 respectively, and at this time, the dead point position of the first energy storage spring 1-8 refers to the position of the first energy storage spring 1-8 when the two ends of the torsion spring and the rotating disc 1-9 are located on the same straight line. The above implementation mode will increase the occupied space of the time delay energy storage mechanism, and therefore, the first energy storage spring 1-8 of the present embodiment preferably adopts a torsion spring which is rotatably sleeved on the operation shaft 1-4.

[0075] As shown in Figure 3 , 5As shown in Figure 8b, the turntable 1-9 further includes a turntable mating arm 1-93. The driven end 1-81 of the first spring mates with the turntable mating arm 1-93. When the turntable 1-9 rotates from the energy release position to the energy storage position, the turntable mating arm 1-93 pushes the driven end 1-81 of the first spring to swing, causing the first energy storage spring 1-8 to store energy. Further, the turntable mating arm 1-93 is disposed on the edge of the turntable main board 1-90, and includes a turntable mating arm limiting side edge 1-931 and a turntable mating arm mating side edge 1-930 disposed opposite to each other. The turntable mating arm limiting side edge 1-931 engages with the device housing to limit the turntable 1-9 to the energy release position, and the turntable mating arm mating side edge 1-930 engages with the driven end 1-81 of the first spring.

[0076] Furthermore, the turntable engagement arm limiting side edge 1-931 engages with the turntable stop 1-26 of the housing partition 1-2 to limit the turntable 1-9 to the energy release position.

[0077] Furthermore, the extension direction of the turntable mating arm 1-93 is perpendicular to the plane where the turntable main board 1-90 is located.

[0078] like Figures 2-6 As shown, the energy storage structure also includes a first bushing 1-7, which is rotatably sleeved on the operating shaft 1-4. One end of the first bushing 1-7 cooperates with the turntable 1-9 to limit the turntable 1-9 on the turntable bearing structure, while the other end is limited to prevent the first bushing 1-7 from moving away from the turntable 1-9 along the axial direction of the operating shaft 1-4. This helps to keep the turntable 1-9 in a horizontal state (that is, a state perpendicular to the axial direction of the operating shaft 1-4), preventing the turntable 1-9 from warping under the torsional torque of the first energy storage spring 1-8, and ensuring the reliable and stable operation of the time-delay energy storage mechanism. The first spring helix of the first energy storage spring 1-8 is sleeved on the first bushing 1-7, preventing the first energy storage spring 1-8 from seizing the operating shaft 1-4 when it is tortuously storing energy, and also better fixing the first energy storage spring 1-8 to prevent it from deflecting, thus ensuring the reliable and stable operation of the time-delay energy storage mechanism.

[0079] Furthermore, such as Figures 2-6 As shown in Figures 9 and 1, the first bushing 1-7 includes a first bushing head 1-71 and a first bushing body 1-70 coaxially arranged. The outer diameter of the first bushing head 1-71 is larger than the outer diameter of the first bushing body 1-70 and the outer diameter of the first spring helical body. One end of the first bushing body 1-70 is connected to the first bushing head 1-71, and the other end is engaged with the turntable 1-9. The first spring helical body is sleeved on the first bushing body 1-70 and is reliably limited between the first bushing head 1-71 and the turntable 1-9.

[0080] Further, the first bushing 1-7 is coaxially fixed and synchronously rotated with the rotating disc 1-9, the first bushing 1-7 provides radial support for the rotating disc 1-9, avoiding radial friction between the rotating disc 1-9 and the operating shaft 1-4, which not only improves the smoothness of the rotating disc 1-9, but also reduces the wear of the rotating disc 1-9 and the operating shaft 1-4, thereby prolonging the service life of the product. Further, as shown in Figure 6 and 9 the first bushing 1-7 is provided with a bushing protrusion 1-72 at one end, the rotating disc 1-9 is provided with a rotating disc hole, and the bushing protrusion 1-72 is inserted into the rotating disc hole to detachably fix the first bushing 1-7 and the rotating disc 1-9. Further, the first bushing 1-7 is provided with two groups of bushing protrusions 1-72, the fan-shaped holes of the rotating disc 1-9 serve as rotating disc holes, and the two groups of bushing protrusions 1-72 are respectively arranged in the two groups of fan-shaped holes of the rotating disc 1-9, and the drive key 1-10 is located between the two groups of bushing protrusions 1-72.

[0081] As other embodiments, the first bushing 1-7 and the rotating disc 1-9 are of an integrated structure.

[0082] Further, as shown in Figures 6-7 the energy storage structure further includes a gasket 1-5; one end of the first bushing 1-7 is limitingly matched with the shell upper cover 1-3, and the other end is matched with the rotating disc 1-9, the gasket 1-5 is arranged on the shell partition plate 1-2 as a rotating disc bearing structure, the rotating disc 1-9 is arranged on the gasket 1-5, and the gasket 1-5 protects the shell partition plate 1-2, avoiding that the rotating disc 1-9 wears the shell partition plate 1-2 during rotation, which is conducive to prolonging the service life of the operating device 1 and the energy storage structure. Further, as shown in Figure 6 the gasket 1-5 is provided with a gasket avoiding hole through which the operating shaft 1-4 passes, a gasket counterbore arranged on the side of the gasket 1-5 facing the rotating disc 1-9, and a gasket opening through which the drive key 1-10 of the delay energy storage mechanism passes, the inner diameter of the gasket counterbore is greater than the inner diameter of the gasket avoiding hole and less than the outer diameter of the rotating disc main plate 1270 of the rotating disc 1-9, the gasket opening is in communication with the gasket counterbore, the drive key 1-10 passes through the gasket opening and is inserted on the operating shaft 1-4 in the gasket counterbore, and swings in the gasket counterbore; during assembly of the operating device, the operating shaft 1-4 and the real-time energy storage mechanism are first assembled together, and then the delay energy storage mechanism is assembled, the gasket opening facilitates assembly of the drive key 1-10 and the operating shaft 1-4, thereby improving assembly efficiency.

[0083] As shown in Figures 2-7As shown, the locking member 1-6 is pivotally arranged, one end of which is in driving cooperation with the tripping device 1-11 of the tripping mechanism, and the other end is in driving cooperation with the tripping device 1-11 of the tripping mechanism. The tripping device 1-11 drives the locking member 1-6 to rotate in the unlocking direction (i.e. the first direction) so as to release the locking cooperation between the locking member locking portion 1-61 and the rotating disc locking arm 1-92.

[0084] Further, as shown in Figures 2-7 , the locking member 1-6 is pivotally arranged, one end of which is in driving cooperation with the tripping device 1-11 of the tripping mechanism, and the other end is in driving cooperation with the tripping device 1-11 of the tripping mechanism. The tripping device 1-11 drives the locking member 1-6 to rotate in the unlocking direction (i.e. the first direction) so as to release the locking cooperation between the locking member locking portion 1-61 and the rotating disc locking arm 1-92.

[0085] Further, as shown in Figure 5 , the locking member locking portion 1-61 comprises a locking member locking surface, which is located on one side of a straight line extending along the extension direction of the locking member main plate 1-60 and passing through the rotation center of the locking member 1-6.

[0086] Further, as shown in Figure 5 , the locking member locking portion 1-61 comprises a locking portion guide surface and a locking portion locking surface. The rotating disc locking arm 1-92 presses against the locking portion guide surface to make the locking member 1-6 rotate in the first direction, and the rotating disc locking arm 1-92 is in limiting cooperation with the locking portion locking surface to lock the rotating disc 1-9 in the energy storage position.

[0087] As shown in Figure 6 , the locking mechanism further comprises a locking member resetting element 1-7r. The locking member resetting element 1-7r applies a force to the locking member 1-6 to make the locking member 1-6 rotate in the second direction (i.e. the locking direction) to reset, and also to make the locking member locking portion 1-61 keep in limiting cooperation with the rotating disc locking arm 1-92 of the rotating disc 1-9, so as to lock the rotating disc 1-9 in the energy storage position.

[0088] As shown in Figures 2-4 , 7, the tripping mechanism comprises a tripping device 1-11, which is preferably a magnetic flux tripping device, for driving the locking member 1-6 to act so as to release the locking cooperation with the time delay energy storage mechanism. After receiving a tripping signal (i.e. a remote tripping control signal), the tripping device 1-11 drives the locking member 1-6 to release the locking cooperation with the time delay energy storage mechanism.

[0089] The real-time energy storage mechanism and the tripping mechanism of the isolating switch of the present application can be realized by the prior art, and will not be described here.

[0090] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating relative importance.

[0091] The above is a further detailed description of the present application in conjunction with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, a number of simple deductions or substitutions can be made without departing from the concept of the present application, and all should be considered within the scope of protection of the present application.

Claims

1. An energy storage structure, comprising an operating shaft (1-4), a time-delayed energy storage mechanism and a locking mechanism, wherein the time-delayed energy storage mechanism comprises a first energy storage spring (1-8) and a turntable (1-9). The operating shaft (1-4) rotates between the open and closed positions, the turntable (1-9) rotates between the energy release and energy storage positions, and the locking mechanism is used to lock the turntable (1-9) in the energy storage position. The operating shaft (1-4) and the turntable (1-9) are driven together. When the operating shaft (1-4) rotates from the open position to the closed position, the turntable (1-9) rotates from the energy release position to the energy storage position along with the operating shaft (1-4), and at the same time drives the first energy storage spring (1-8) to store energy. Its features are: The turntable (1-9) is coaxially arranged with the operating shaft (1-4); the turntable (1-9) reaches the energy storage position when or before the operating shaft (1-4) reaches the closing position; The locking mechanism includes a locking element (1-6), which includes a locking part (1-61); the turntable (1-9) includes a locking arm locking surface (1-921), which engages with the locking part (1-61) to keep the turntable (1-9) in the energy storage position; the locking arm locking surface (1-921) rotates past the locking part (1-61) when the operating shaft (1-4) reaches the closing position. The turntable (1-9) includes a first surface (1-940), and a driving finger is provided on the operating shaft (1-4). The driving finger is in transmission cooperation with the first surface (1-940) to drive the turntable (1-9) to rotate towards the energy storage position. The locking arm locking surface (1-921) is offset from the end of the turntable (1-9) away from the rotation axis of the turntable (1-9) to the side where the first surface (1-940) is located, relative to the end of the locking arm locking surface (1-921) close to the rotation axis of the turntable (1-9). The locking arm locking surface (1-921) is located on the outer side of the first surface (1-940) in the radial direction of the turntable (1-9). The locking arm locking surface (1-921) and the extended surface of the first surface (1-940) form an angle.

2. The energy storage structure according to claim 1, characterized in that: The angle between the locking surface (1-921) of the locking arm and the extended surface of the first surface (1-940) is greater than or equal to 0° and less than or equal to 10°.

3. The energy storage structure according to claim 1, characterized in that: When the locking mechanism releases the lock on the turntable (1-9), the first energy storage spring (1-8) releases energy and drives the turntable (1-9) to rotate from the energy storage position to the energy release position. The turntable (1-9) then drives the operating shaft (1-4) to rotate from the closed position to the open position.

4. The energy storage structure according to claim 1, characterized in that: The turntable (1-9) includes a turntable shaft hole (1-91) and at least one turntable driven hole (1-94). The operating shaft (1-4) passes through the turntable shaft hole (1-91), and a first surface (1-940) is provided on the side wall of the turntable driven hole (1-94).

5. The energy storage structure according to claim 4, characterized in that: When the turntable (1-9) is in the energy storage position, the operating shaft (1-4) can rotate freely between the open and closed positions.

6. The energy storage structure according to claim 5, characterized in that: There is a tripping travel between the turntable (1-9) and the operating shaft (1-4); when the operating shaft (1-4) rotates from the closed position to the open position, it travels the tripping travel relative to the turntable (1-9).

7. The energy storage structure according to claim 6, characterized in that: The open circuit is set in the rotating disk's driven hole (1-94); when the rotating disk (1-9) is in the energy storage position, when the operating shaft (1-4) rotates from the closed position to the open position, the drive finger passes through the open circuit and the rotating disk (1-9) remains stationary.

8. The energy storage structure according to claim 7, characterized in that: The rotating disk driven hole (1-94) is a fan-shaped hole, and the center of the fan-shaped hole coincides with the axis of the rotating disk (1-9). The two ends of the fan-shaped hole in the circumferential direction are respectively provided with a first surface (1-940) and a second surface (1-941), and the opening idle stroke is provided between the first surface (1-940) and the second surface (1-941).

9. The energy storage structure according to claim 8, characterized in that: The two fan-shaped holes are symmetrically arranged on both sides of the operating shaft (1-4); the time-delay energy storage mechanism also includes a drive key (1-10) arranged on the operating shaft (1-4), with the two ends of the drive key (1-10) protruding on both sides of the operating shaft (1-4) as two drive fingers.

10. The energy storage structure according to claim 4, characterized in that: The turntable (1-9) also includes a turntable main board (1-90) and a turntable locking arm (1-92). The turntable moving hole (1-94) is provided on the turntable main board (1-90), and the turntable locking arm (1-92) is provided on the edge of the turntable (1-9). The locking arm locking surface (1-921) is provided on the edge of the turntable locking arm (1-92), and the locking arm locking surface (1-921) is not coplanar with the turntable main board (1-90).

11. The energy storage structure according to claim 1, characterized in that: The energy storage structure also includes a first bushing (1-7) rotatably sleeved on the operating shaft (1-4); the first energy storage spring (1-8) is a torsion spring sleeved on the first bushing (1-7), one end of which cooperates with the turntable (1-9), and the other end is fixedly set.

12. The energy storage structure according to claim 11, characterized in that: The first bushing (1-7) is coaxially and fixedly connected to the turntable (1-9) and rotates synchronously.

13. The energy storage structure according to claim 12, characterized in that: The first bushing (1-7) is provided with a bushing protrusion (1-72), and the turntable (1-9) is provided with a turntable opening. The bushing protrusion (1-72) is inserted into the turntable opening.

14. The energy storage structure according to claim 13, characterized in that: The first bushing (1-7) is provided with two sets of bushing protrusions (1-72), the fan-shaped hole of the turntable (1-9) serves as the turntable opening, the two sets of bushing protrusions (1-72) are respectively set in the two sets of fan-shaped holes, and the drive key (1-10) of the time-delay energy storage mechanism is located between the two sets of bushing protrusions (1-72).

15. The energy storage structure according to claim 11, characterized in that: The energy storage structure also includes a shell cover (1-3) and a shell partition (1-2), as well as a gasket (1-5); one end of the first bushing (1-7) is limited to the shell cover (1-3), and the other end is engaged with the turntable (1-9). The gasket (1-5) is set on the shell partition (1-2) as a turntable bearing structure, and the turntable (1-9) is set on the gasket (1-5).

16. The energy storage structure according to claim 11, characterized in that: The first bushing (1-7) includes a first bushing head (1-71) and a first bushing body (1-70) arranged coaxially. The outer diameter of the first bushing head (1-71) is larger than the outer diameter of the first bushing body (1-70) and the outer diameter of the first spring helical body. One end of the first bushing body (1-70) is connected to the first bushing head (1-71), and the other end is engaged with the turntable (1-9). The first spring helical body is sleeved on the first bushing body (1-70).

17. A rotary disconnect switch, characterized in that: The rotary disconnect switch includes the energy storage structure described in any one of claims 1-16.

18. The rotary disconnector according to claim 17, characterized in that: The rotary disconnect switch also includes a real-time energy storage mechanism. When the operating shaft (1-4) rotates, it drives the real-time energy storage mechanism to store energy and then release energy, so that the rotary disconnect switch can open and close.

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