CN217280543U - Rotary energy storage unlocking device for rotary switch - Google Patents

Abstract

The utility model relates to a rotation energy storage unlocking device for rotary switch, it includes: a housing; a knob assembly having a spindle extending downward; a boss member having a first lug on a side thereof; the electronic control trigger mechanism is provided with a first extension part capable of moving up and down; a lock lever pivotably provided at a side portion of the boss member through a return spring and having a first stopper portion engaged with the first lug and a second stopper portion engaged with the first extension portion; and an energy storage spring connected between the boss member and the housing. When the conditions such as overload, short circuit and the like are met, the control center sends a signal to the electric control trigger mechanism, the electric control trigger mechanism does not lock the locking rod any more, the first lug of the shaft sleeve component is not limited by the first limiting part of the locking rod any more, the shaft sleeve component rotates along the first rotating direction under the action of the energy storage spring, and meanwhile, the shaft sleeve component drives the main shaft to rotate through the one-way transmission component, so that the knob component rotates, and the automatic brake-separating and disconnecting operation is completed.

Description

Rotary energy storage unlocking device for rotary switch

Technical Field

The utility model relates to a switch field especially relates to a rotation energy storage unlocking device for rotary switch.

Background

With the wide construction of the photovoltaic system in China, the safety problem of the photovoltaic system is gradually concerned by the masses and becomes a hot point problem in the industry in recent years. The photovoltaic direct-current switch is applied to an inverter and controls the working states of a plurality of core components. The reliability of the photovoltaic direct-current switch is not only related to the good operation of the whole photovoltaic system, but also related to the stable development of the photovoltaic industry.

Reviewing the development history of the photovoltaic industry over the past few years, standards for the adoption of photovoltaic switches are gradually established in the industry. Various manufacturers have been researching to enhance the arc extinguishing capability and the breaking speed of the switch contact. However, the knob-type photovoltaic switches currently used on the market are basically manually operated, requiring the operator to manually turn off the photovoltaic switch after the fault is found, which undoubtedly increases the safety risk for the operator, while at the same time the need for rapid turn-off with problems cannot be fulfilled. If the inverter works abnormally, the power supply can be cut off rapidly, so that the burning accident can be avoided, and the life and property safety of the photovoltaic power station is protected. Therefore, when the circuit has problems, how to rapidly cut off the direct current switch becomes a problem to be solved urgently for the photovoltaic power station.

To the photovoltaic switch of manual disconnection who widely uses on the existing market, need provide a safer, more swift mode of cutting off, guarantee electric operating personnel and maintenance personal's life safety's complementary unit.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art, the utility model provides a rotation energy storage unlocking device for rotary switch, it is when meetting the condition such as transshipping or short circuit, and control center is to automatically controlled trigger mechanism signals, and automatically controlled trigger mechanism no longer locks the hasp pole, and the first lug of axle sleeve component is no longer restricted by the first spacing portion of hasp pole to it is rotatory along first direction of rotation under energy storage spring's torsion effect. The sleeve component drives the main shaft to rotate through the one-way transmission component while rotating along the first rotating direction, so that the knob component rotates from the ON position to the OFF position, and the automatic brake-separating and disconnecting operation is completed.

In order to solve the above problem, the utility model provides a rotation energy storage unlocking device for rotary switch, include: a housing; a knob assembly mounted to the housing and provided with a spindle; a boss member rotatably mounted to the housing, a side of the boss member being provided with a first lug; the electronic control trigger mechanism is provided with a first extension part capable of moving linearly or rotating; the lock catch rod is pivotally arranged at the side part of the shaft sleeve component through a return spring and is provided with a first limit part matched with the first lug of the shaft sleeve component and a second limit part matched with the first extension part of the electric control trigger mechanism; and an energy storage spring connected between the boss member and the housing.

Preferably, the direction of the force applied to the first limiting portion by the first lug is the tangential direction of the arc of the rotating track of the first limiting portion.

Preferably, the bushing member is provided with a second lug, the bushing member drives the energy storage spring to twist to the energy storage state through the second lug, and the energy storage spring can drive the bushing member to rotate in the first rotation direction through the second lug when being released.

Preferably, the energy storage spring is provided in plurality.

Preferably, the energy storage springs are arranged as one.

Preferably, the second lug is provided in plurality.

Preferably, the second lug is provided as one.

Preferably, the boss member is disposed within the housing and is provided at its center with a central hole through which the main shaft passes and is connected with the boss member by a one-way transmission assembly such that the main shaft transmits torque to the boss member when rotated in the second rotational direction and the boss member transmits torque to the main shaft when rotated in the first rotational direction.

Preferably, the unidirectional transmission assembly comprises: at least one scalloped groove disposed in a middle portion of the boss member, the at least one scalloped groove communicating with the central bore; and a shaft pin horizontally mounted to the main shaft, at least one end of the shaft pin extending to an inside of a corresponding one of the sector grooves.

Preferably, the rotary energy storage unlocking device for the rotary switch further comprises a mounting rack, the mounting rack is mounted in the shell, and a clamping groove is formed in the mounting rack; the electronic control trigger mechanism comprises a supporting rod, the supporting rod is provided with a second extending part corresponding to the clamping groove, and the first extending part is arranged on the supporting rod; the second extending part can be clamped in the clamping groove and move along the clamping groove, and the first extending part can lock the second limiting part of the lock catch rod, so that the first limiting part of the lock catch rod can prevent the first lug of the shaft sleeve component from rotating along the first rotating direction; after receiving the control signal, the support rod of the electrically controlled trigger mechanism can drive the first extension portion to move, so that the first extension portion no longer locks the second limiting portion of the lock catch lever, and the first limiting portion of the lock catch lever no longer prevents the first lug of the shaft sleeve member from rotating in the first rotation direction.

Preferably, the electronic control trigger mechanism further comprises a magnetic flux converter, the magnetic flux converter is provided with an output shaft, and the bottom of the support rod is fixedly connected to the output shaft of the magnetic flux converter.

Preferably, one end of the energy storage spring extends along a direction close to the central axis of the energy storage spring, and the extending direction of one end of the energy storage spring and the central axis of the energy storage spring form a certain angle; the other end of the energy storage spring extends along the direction far away from the central shaft of the energy storage spring, and the extending direction of the other end of the energy storage spring and the central shaft of the energy storage spring form a certain angle.

Preferably, the rotary stored energy unlocking device for a rotary switch further comprises: the trigger ejector rod is fixedly connected to the main shaft and rotates along with the rotation of the main shaft, and one end of the trigger ejector rod is provided with a trigger part; the micro switch is arranged in the shell, and the trigger ejector rod can rotate to a state that the trigger part is contacted with the micro switch under the driving of the main shaft.

The utility model discloses a rotation energy storage unlocking device for rotary switch when meetting the condition such as transshipping or short circuit, control center is to automatically controlled trigger mechanism signals, and automatically controlled trigger mechanism no longer locks the hasp pole, and the first lug of axle sleeve component is no longer restricted by the first spacing portion of hasp pole to it is rotatory along first direction of rotation under energy storage spring's torsion effect. The sleeve component drives the main shaft to rotate through the one-way transmission component while rotating along the first rotating direction, so that the knob component rotates from the ON position to the OFF position, and the automatic brake-separating and disconnecting operation is completed.

The device of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following embodiments incorporated herein, which together serve to explain certain principles of the invention.

Drawings

Fig. 1 is a schematic structural view of a rotary energy storage unlocking device for a rotary switch according to an embodiment of the present invention;

FIG. 2 is a schematic view of the housing;

FIG. 3 is a schematic structural diagram of a base;

FIG. 4 is a top view corresponding to FIG. 3;

FIG. 5 is a schematic view of FIG. 2 with the cover omitted;

FIG. 6 is a schematic view of FIG. 5 with the cross shaft and trigger ram omitted;

FIG. 7 is a schematic structural view of a bushing member;

FIG. 8 is a top view corresponding to FIG. 7;

FIG. 9 is a schematic view of an electrically controlled trigger mechanism;

fig. 10 is a schematic structural view of the locking lever;

fig. 11 is a schematic view of the position relationship between the electric control trigger mechanism and the locking lever;

FIG. 12 is a schematic structural view of the energy storage spring;

FIG. 13 is a schematic view of a rotary energy storage unlocking device for a rotary switch in a state of opening;

FIG. 14 is a schematic view of the corresponding internal structure of FIG. 13;

FIG. 15 is the schematic view of FIG. 14 with the cross shaft and trigger ram omitted;

fig. 16 is a schematic diagram of a state of a rotary energy storage unlocking device for a rotary switch when the rotary switch is switched on;

FIG. 17 is a schematic view of the corresponding internal structure of FIG. 16;

FIG. 18 is the schematic view of FIG. 17 with the cross shaft and trigger ram omitted;

FIG. 19 is a schematic diagram of a rotary energy storage unlocking device for a rotary switch in a state of opening in an energy storage state;

FIG. 20 is a schematic view of the corresponding internal structure of FIG. 19;

FIG. 21 is the schematic view of FIG. 20 with the cross-axis and the trigger ram omitted;

fig. 22 is a schematic view of a combination of two stored energy springs.

It is to be understood that the appended drawings are not necessarily to scale, presenting a simplified representation of various features illustrative of the basic principles of the invention. The specific design features disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular environment in which they are used and/or used.

In the drawings, like numerals refer to like or equivalent parts throughout the several views of the drawings.

Detailed Description

Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the present invention will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the invention to these exemplary embodiments. On the contrary, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit of the invention and the scope of the invention as defined by the appended claims.

The rotational energy storage unlocking device for the rotary switch according to the present invention will be described with reference to fig. 1 to 22.

The utility model discloses a rotation energy storage unlocking device for rotary switch, include: the energy-storing and triggering device comprises a shell 100, a knob assembly 200, a triggering ejector rod 300, a shaft sleeve member 400, an electronic control triggering mechanism 500, a lock catch rod 600 and an energy-storing spring 700.

The housing 100 is mounted to a panel of the control box for supporting the knob assembly 200, the trigger lever 300, the boss member 400, the electrically controlled trigger mechanism 500, the latch lever 600 and the energy storage spring 700.

The knob assembly 200 includes a switch body 201 and a main shaft 202 extending downward from the switch body 201, the main shaft 202 being disposed within the housing 100 through an upper surface of the housing 100.

The trigger push rod 300 is fixedly connected to the main shaft 202 and rotates along with the rotation of the main shaft 202, and one end of the trigger push rod 300 is provided with a trigger part 301.

A boss member 400 is provided in the housing 100 and provided at the center thereof with a center hole 401 through which the main shaft 202 passes, the main shaft 202 passing through the center hole 401 and being connected with the boss member 400 through a one-way transmission assembly 800 such that the main shaft 202 transmits torque to the boss member 400 when rotating in the second rotational direction (i.e., clockwise in fig. 13 to 15), the boss member 400 transmits torque to the main shaft 202 when rotating in the first rotational direction (i.e., counterclockwise in fig. 16 to 18), the main shaft 202 does not transmit torque to the boss member 400 when rotating in the first rotational direction (i.e., counterclockwise in fig. 16 to 18), and the boss member 400 does not transmit torque to the main shaft 202 when rotating in the second rotational direction (i.e., clockwise in fig. 16 to 18), and the side of the boss member 400 is provided with a first lug 402. Wherein the torque transmitted by the main shaft 202 to the boss member 400 is generated when the worker manually twists the knob assembly 200, and the torque transmitted by the boss member 400 to the main shaft 202 is generated when the power spring 700 is released.

An electrically controlled trigger mechanism 500 is provided in the housing 100, and is provided with a first extension 501 that is movable in the up-down direction.

The latch lever 600 is pivotably provided at the side of the boss member 400 by a return spring 601, and is provided with a first stopper portion 602 which is engaged with the first lug 402 of the boss member 400 and a second stopper portion 603 which is engaged with the first extension 501 of the electrically controlled trigger mechanism 500.

The energy storage spring 700 is disposed in the housing 100 and is connected between the boss member 400 and the housing 100 in an energy storage state.

During the first turning of the knob assembly 200 from the OFF position to the ON position, the main shaft 202 drives the bushing member 400 to rotate in the second rotation direction (i.e., clockwise direction in fig. 13 to 15) through the one-way transmission assembly 800, so as to complete the closing, and the energy storage spring 700 is changed into the energy storage state.

The utility model discloses an it uses in switch (not shown in the figure) to rotate energy storage unlocking device, before switch (not shown in the figure) combined floodgate and energy storage spring 700 become the energy storage state, optional position pine hand, energy storage spring 700 enables the switch soon to the separating brake position.

After the energy storage spring 700 is changed to the energy storage state, the first extension 501 can lock the second position-limiting portion 603 of the latch lever 600, so that the first position-limiting portion 602 of the latch lever 600 can prevent the first lug 402 of the bushing member 400 from rotating in the first rotational direction, so that the energy storage spring 700 maintains the energy storage state.

When an overload or short circuit occurs, the control center (not shown) sends a signal to the electrically controlled trigger mechanism 500, the first extension portion 501 of the electrically controlled trigger mechanism 500 no longer locks the second position-limiting portion 603 of the locking rod 600, and the first lug 402 of the bushing member 400 is no longer limited by the first position-limiting portion 602 of the locking rod 600, so that the bushing member 400 rotates in the first rotation direction under the torsion force of the energy-storing spring 700. While the bushing member 400 rotates in the first rotation direction, the bushing member 400 rotates the main shaft 202 via the one-way transmission assembly 800, such that the knob assembly 200 rotates from the ON position to the OFF position, completing the automatic opening and closing operation.

In an exemplary embodiment, the force applied by the first lug 402 to the first limiting portion 602 is in a direction tangential to the arc of the rotation trajectory of the first limiting portion 602. Because the acting force is in the tangential direction, the tripping mode is rotating tripping, and no friction is generated.

In an exemplary embodiment, as shown in fig. 1, 3 and 4, the case 100 includes a base 101 and a cover 102 disposed above the base 101, the base 101 is hollow inside, an opening is disposed above, and the cover 102 is mounted on the opening of the base 101 to constitute a receiving space.

The cover 102 is connected to the base 101 by fasteners and snaps.

In an exemplary embodiment, the fastening member is a bolt, and the type of the fastening member is not limited thereto, and may be any type of fastening member in the prior art as long as the above-described function can be achieved.

In an exemplary embodiment, as shown in fig. 2, the cover body 102 is provided with a first boss 103 and a second boss 104 extending upward, the first boss 103 is provided with a knob assembly hole 105 vertically communicating to the accommodating space, and the second boss 104 is provided with a reset hole 106 vertically communicating to the accommodating space.

The switch body 201 is installed above the knob assembly hole 105, and the main shaft 202 extends into the accommodating space after passing through the knob assembly hole 105.

The reset hole 106 is formed to pass through a support rod 503 to be described later.

In an exemplary embodiment, the housing 100 further includes a nut assembly 107, the nut assembly 107 being configured to cover the reset aperture 106, the nut assembly 107 being configured to prevent foreign objects from entering the knob assembly aperture 105 when reset is not desired.

In an exemplary embodiment, as shown in fig. 3, a groove 112 is provided in the base 101, and the groove 112 is used to catch the other end 702 of the return spring 700 described later.

In an exemplary embodiment, as shown in fig. 1, one side of the housing 100 is provided with a signal interface 113, and the signal interface 113 is used for electrical connection with a PCB 902 to be described later.

Specifically, as shown in fig. 3, the signal interface 113 is provided at one side of the base 101.

In an exemplary embodiment, as shown in fig. 3, the base 101 is internally provided with a first receiving chamber 114, and a bushing member 400 is mounted in the first receiving chamber 114.

In an exemplary embodiment, as shown in fig. 3 and 4, the base 101 is provided with an arc-shaped groove 115 on the outer side of the first housing bin 114, and the first lug 402 is movable within the arc-shaped groove 115.

In an exemplary embodiment, as shown in fig. 3 and 4, the base 101 is provided with a buffer 116 at an end of the arc-shaped groove 115 away from the latch lever 600, and when the first lug 402 moves to the end of the arc-shaped groove 115 away from the latch lever 600, the buffer 116 can reduce the impact on the first lug 402 to avoid damaging the first lug 402 as much as possible.

In an exemplary embodiment, the bumper 116 is selected from polyurethane.

In an exemplary embodiment, as shown in fig. 3 and 4, the second accommodating chamber 117 is provided inside the base 101 at one side of the first accommodating chamber 114, and the latch lever 600 is pivotably provided inside the second accommodating chamber 117 by a return spring 601.

In an exemplary embodiment, as shown in fig. 3 and 4, a third receiving chamber 118 is provided inside the base 101 at one side of the first receiving chamber 114, and an electrically controlled trigger mechanism 500 is installed in the third receiving chamber 118.

In an exemplary embodiment, as shown in fig. 1 and 5, the knob assembly 200 further includes a transverse shaft 204 and a screw 203, the switch body 201 is mounted on the top of the main shaft 202 through the transverse shaft 204 and the screw 203, and the switch body 201 can drive the main shaft 202 to rotate around the axis of the main shaft 202 itself through the transverse shaft 204 and the screw 203.

In an exemplary embodiment, the ratio of the length of the second position-limiting portion 603 to the length of the first position-limiting portion 602 of the catch lever 600 ranges from (1.5 to 10): 1.

in one embodiment, the ratio of the length of the second position-limiting portion 603 to the length of the first position-limiting portion 602 of the catch lever 600 is 2.5: 1.

under the condition that the space allows, the ratio of the length of the second limiting part 603 to the length of the first limiting part 602 can be increased as much as possible, friction factors are eliminated, and the requirement on the acting force of the magnetic flux converter can be reduced as much as possible, so that the requirement on an electric control trigger mechanism is greatly reduced, the system redundancy is improved, and the long-term reliable operation can be realized.

In an exemplary embodiment, as shown in fig. 7 and 8, an outer edge of the boss member 400 is provided with a groove 405, the first lug 402 is provided at a bottom 408 of the groove 405, and the first lug 402 includes a connecting portion 406 and a vertical portion 407 formed in one body.

The connection portion 406 extends from a bottom 408 of the groove 405 outward in a radial direction of the boss member 400, the vertical portion 407 extends downward from an outer side of the connection portion 406, and an outer rim of the boss member 400 is closer to the main shaft 202 than an inner surface of the vertical portion 407 to enable the first lug 402 to move within the arc-shaped groove 115.

The first lug 402 does not contact the arc face 119 and the arc face 120 (see fig. 4) of the arc slot 115 during the movement of the arc slot 115.

In an exemplary embodiment, as shown in fig. 7 and 8, the boss member 400 includes a disc-shaped body 403, a center hole 401 is provided on the disc-shaped body 403, and a first lug 402 is located at one side of the disc-shaped body 403.

In an exemplary embodiment, as shown in fig. 7 and 8, the bushing member 400 is provided with a second lug 404 extending downward, the bushing member 400 rotates the energy storage spring 700 to the energy storage state through the second lug 404, and the energy storage spring 700 can rotate the bushing member 400 in the first rotational direction (i.e., counterclockwise direction in fig. 18) through the second lug 404 when being released.

Specifically, the second lug 404 is closer to the central hole 401 than the first lug 402.

Specifically, the second lug 404 extends downward from the disc-shaped body 403.

In the illustrated example, the number of the second lugs 404 is 3, and the number thereof may be adjusted according to circumstances, and for example, may be set to any one of 1 to 5.

In the illustrated embodiment, there are 2 energy storage springs 700 and 3 second lugs 404, wherein 2 second lugs 404 can interact with 1 energy storage spring 700 respectively, and the extra 1 second lug 404 can prevent the torsion spring from shrinking excessively to cause permanent deformation.

In an exemplary embodiment, one end 701 of the power spring 700 extends in a direction close to the central axis of the power spring 700 (i.e., the main shaft 202), and the one end 701 of the power spring 700 extends at an angle to the central axis of the power spring 700.

The other end 702 of the energy storage spring 700 extends in a direction away from the central axis of the energy storage spring 700, and the extending direction of the other end 702 of the energy storage spring 700 is at an angle to the central axis of the energy storage spring 700.

In an exemplary embodiment, as shown in fig. 12 and 22, one end 701 of the power spring 700 extends in a direction close to the central axis (i.e., the main axis 202) of the power spring 700, and the extending direction of the one end 701 of the power spring 700 and the central axis of the power spring 700 form an angle ranging from 80 to 100 degrees.

The other end 702 of the energy storage spring 700 extends along a direction away from the central axis of the energy storage spring 700, and the extension direction of the other end 702 of the energy storage spring 700 and the central axis of the energy storage spring 700 form an included angle of 80-100 degrees.

In one embodiment, one end 701 of energy storage spring 700 extends at a 90 degree angle to the central axis of energy storage spring 700, and the other end 702 of energy storage spring 700 extends at a 90 degree angle to the central axis of energy storage spring 700.

In an exemplary embodiment, the other end 702 of the stored energy spring 700 is captured within the recess 112 of the base 101.

In an exemplary embodiment, as shown in fig. 12, the other end 702 of the energy storage spring 700 is provided with a bent portion 703 extending upward, the bent portion 703 is clamped in the groove 112, and the provision of the bent portion 703 can increase the contact area between the energy storage spring 700 and the housing 100, so as to prevent the housing from being damaged by an excessive force value of the energy storage spring 700 after energy storage.

In an exemplary embodiment, the energy storage spring 700 is provided in 2, and the number thereof may be adjusted according to circumstances, for example, may be provided in any one number of 1 to 5.

By adopting the scheme of a plurality of energy storage springs, the space utilization rate can be improved, and larger pre-tightening torsion can be realized under the smaller spring volume.

Compare in the scheme of only an energy storage spring, single energy storage spring's among a plurality of energy storage springs stress descends by a wide margin for single energy storage spring's among a plurality of energy storage springs life can prolong.

When the boss member 400 rotates, the second lug 404 of the boss member 400 can contact and push one end of the energy storage spring 700 to twist, so that the energy storage spring 700 is twisted to an energy storage state.

It may be that only one stored energy spring is carried by one second lug 404.

It is also possible that one second lug 404 simultaneously carries a plurality of stored energy springs, for example, by connecting one end 701 of all stored energy springs 700 to one second lug 404.

In an exemplary embodiment, as shown in fig. 9 to 11, the automatically controlled opening mechanism further includes a mounting bracket 110, the mounting bracket 110 is mounted in the housing 100, and a locking groove 111 is provided on the mounting bracket 110.

The electrically controlled trigger mechanism 500 includes a support rod 503, the support rod 503 is provided with a second extension portion 502 corresponding to the card slot 111, the first extension portion 501 is disposed on the support rod 503, and the top of the support rod 503 passes through the upper surface of the housing 100.

Specifically, the top of the supporting rod 503 passes through the upper surface of the housing 100 and then extends into the reset hole 106 of the second boss 104 or extends above the reset hole 106, and the staff can press the top of the supporting rod 503 through the reset hole 106.

The second extending portion 502 can be locked in the locking groove 111 (see fig. 11) to prevent the support rod 503 from rotating, the second extending portion 502 can move up and down along the locking groove, and the first extending portion 501 can lock the second position-limiting portion 603 of the locking lever 600, so that the first position-limiting portion 602 of the locking lever 600 can prevent the first lug 402 of the bushing member 400 from rotating in the first rotation direction (see fig. 17 and 18).

After receiving the control signal, the supporting rod 503 of the electrically controlled triggering mechanism 500 drives the first extending portion 501 to move upward, so that the first extending portion 501 no longer locks the second position-limiting portion 603 of the latch lever 600, and thus the first position-limiting portion 602 of the latch lever 600 no longer prevents the first lug 402 of the sleeve member 400 from rotating in the first rotating direction.

Wherein, even if the supporting rod 503 moves upward to a state that the top of the supporting rod 503 is located above the reset hole 106, the top of the supporting rod 503 is still located below the nut assembly 107.

In the exemplary embodiment, after the support rod 503 is moved upward, the top of the support rod 503 is moved just above the reset hole 106 so that the worker presses the top of the support rod 503 after the discharge failure, thereby achieving the reset.

In one embodiment, as shown in fig. 9, the electrically controlled triggering mechanism 500 further comprises a magnetic flux transformer 504, the magnetic flux transformer 504 is provided with an output shaft 505, and the bottom of the supporting rod 503 is fixed to the output shaft 505 of the magnetic flux transformer 504.

The output shaft 505 of the magnetic flux transformer 504 can move upward to drive the support rod 503 to move up and down, thereby driving the first extension part 501 and the second extension part 502 to move up and down.

The release direction of the magnetic flux transformer 504 (i.e., the vertical direction) is perpendicular to the rotation sector of the latch lever (i.e., the horizontal plane in which the first and second rotational directions lie).

In another embodiment, the flux transformer 504 may also be replaced with an electromagnet.

In an exemplary embodiment, as shown in conjunction with fig. 7, 8, 15, 18, and 21, the unidirectional transmission assembly 800 includes: at least one scalloped groove 801, 802 and a pin 803.

At least one sector groove 801, 802 is provided in the middle of said boss member 400, at least one sector groove 801, 802 communicating with the central hole 401.

A shaft pin 803 is horizontally mounted to the main shaft 202, at least one end of the shaft pin 803 extending into the interior of a corresponding one of the scalloped grooves 801 or 802.

In one embodiment, the unidirectional delivery assembly 800 comprises: two scalloped grooves 801, 802 and a pin 803.

The sector grooves 801 and 802 are provided in the middle of the boss member 400 and are symmetrically distributed about the center hole 401, and the sector grooves 801 and 802 communicate with the center hole 401, respectively.

A shaft pin 803 is horizontally mounted to the main shaft 202, one end of the shaft pin 803 extending into the inside of the sector groove 801 and the other end of the shaft pin 803 extending into the inside of the sector groove 802.

In another embodiment, only one of the sector-shaped slots 801 of the uni-directional transmission assembly 800 is provided, and one end of the shaft pin 803 extends into the sector-shaped slot 801 (not shown).

In an exemplary embodiment, as shown in fig. 7 and 8, the scallops 801, 802 are recessed from the surface of the boss member 400, i.e., the scallops 801, 802 are part of the boss member 400.

When the main shaft 202 rotates in the second rotation direction (i.e. clockwise in fig. 13 to 15), the shaft pin 803 can transmit a moment to the sidewall 804 of the sector groove 801 and the sidewall 806 of the sector groove 802, so as to transmit the moment to the bushing member 400, and thus the bushing member 400 is rotated in the second rotation direction to the state shown in fig. 16 to 18.

In fig. 16 to 18, the charging spring 700 is in a charging state.

When the boss member 400 rotates in the first rotational direction (i.e., counterclockwise in fig. 16 to 18), the moment is transmitted to the shaft pin 803 through the side wall 804 of the sector groove 801 and the side wall 806 of the sector groove 802, and is further transmitted to the main shaft 202, i.e., rotates back to the state of fig. 13 to 15. While the main shaft 202 does not transmit torque to the boss member 400 when rotating in the first rotational direction (i.e., counterclockwise in fig. 16-18).

In an exemplary embodiment, as shown in fig. 7 and 8, a through slot 409 extending in a radial direction is provided on the disc-shaped body 403, and the through slot 409 is communicated to one of the at least one sector-shaped slots 801, 802 to facilitate mounting and dismounting of the shaft pin 803.

Specifically, as shown in fig. 7 and 8, the through groove 409 communicates to the sector groove 801.

In an exemplary embodiment, as shown in fig. 5 and 6, the automatically controlled disconnect mechanism further comprises: the microswitch 901 is installed in the housing 100, and the trigger push rod 300 can rotate to a state that the trigger part 301 is in contact with the microswitch 901 under the driving of the main shaft 202, so that the microswitch 901 outputs a closing signal to complete a closing operation.

When the trigger part 301 of the trigger lever 300 does not contact the microswitch 901, the microswitch 901 outputs a brake-off signal.

In an exemplary embodiment, as shown in fig. 5 and 6, the rotational energy storing unlocking device for a rotary switch further includes: a PCB 902 mounted in the housing 100, the PCB 902 being electrically connected to the micro switch 901, the electrically controlled trigger mechanism 500 and the signal interface 113.

The opening signal or the closing signal output by the micro switch 901 is sent to the PCB 902 and finally sent to the relevant load through the signal interface 113.

When the energy storage spring 700 is assembled, the energy storage spring 700 can be rotated by about 5 to 360 degrees in advance to realize the pre-energy storage of the energy storage spring 700, so that the torque of the energy storage spring 700 is increased, and the proper shaft sleeve member 400 is quickly reset.

In an exemplary embodiment, the energy storage spring 700 may be rotated by about 90 to 170 degrees in advance to achieve pre-energy storage of the energy storage spring 700.

The external related signals are transmitted to the PCB 902 through the signal interface 113 and finally transmitted to the electrically controlled trigger mechanism 500.

In the above embodiments, the automatically controlled breaking mechanism is mounted on a horizontal panel, and in addition to this, the automatically controlled breaking mechanism may be mounted on a vertical or inclined panel.

The operation of the rotary energy storage unlocking device for a rotary switch according to the present invention will be described with reference to the accompanying drawings.

In an initial state, the switch body 201 is located at a switching-off position (see fig. 13), one end of the shaft pin 803 is in contact with the side wall 804 of the fan-shaped groove 801, the other end of the shaft pin 803 is in contact with the side wall 806 of the fan-shaped groove 802 (see fig. 15), the trigger part 301 of the trigger push rod 300 is not in contact with the microswitch 901 (see fig. 14), the microswitch 901 provides a switching-off signal, and the automatic control disconnecting mechanism is in a switching-off state. At this time, the latch lever 600 is in a natural state by the return spring 601 (see fig. 14 and 15 in cooperation).

When the switch body 201 is rotated from the open position to the close position (i.e. from the position of fig. 13 to the position of fig. 16) along the second rotation direction (i.e. clockwise direction of fig. 13), the switch body 201 rotates the main shaft 202 along the second rotation direction, the main shaft 202 rotates the shaft pin 803 along the second rotation direction by about 90 degrees (see fig. 18), and the shaft pin 803 pushes the side wall 804 of the fan-shaped groove 801 and the side wall 806 of the fan-shaped groove 802, so that the first lug 402 passes over the first position-limiting portion 602 and is locked by the first position-limiting portion 602 of the locking lever 600.

During the process that the first lug 402 passes over the first position-limiting portion 602, the first lug 402 pushes the first position-limiting portion 602, so that the first position-limiting portion 602 drives the latching lever 600 to overcome the action of the return spring 601 and rotate around the axis of the latching lever 600 itself in the first rotational direction (i.e., counterclockwise in fig. 14 and 18), so that the first position-limiting portion 602 leaves a space for the rotation of the first lug 402.

After the first lug 402 passes the first stopper portion 602 in the second rotational direction (i.e., clockwise in fig. 14 and 18), the latch lever 600 is rotated back to the natural state in the second rotational direction (i.e., clockwise in fig. 18) about the axis of the latch lever 600 itself by the return spring 601 so that the first stopper portion 602 can prevent the first lug 402 from rotating in the first rotational direction (i.e., counterclockwise in fig. 18).

During the process that the first lug 402 passes the first position-limiting portion 602, the second lug 404 pushes one end 701 of the energy storage spring 700 to twist, so that the energy storage spring 700 is twisted to an energy storage state. Since the first lug 402 is locked by the first position-limiting portion 602 of the locking lever 600, the energy-storing spring 700 is always in the energy-storing state.

When the energy storage spring 700 is in the energy storage state, the energy storage spring 700 provides a torque that causes the boss member 400 to have a tendency to rotate in the first rotational direction.

At this time, the trigger portion 301 of the trigger plunger 300 contacts the micro switch 901 (see fig. 17), and the micro switch 901 provides a closing signal.

When the energy storage spring 700 is in the energy storage state, the worker may rotate the switch body 201 in the first rotation direction (i.e., counterclockwise direction in fig. 16) to rotate the main shaft 202 in the first rotation direction (i.e., counterclockwise direction in fig. 16).

The spindle 202 rotates the shaft pin 803 in a first rotational direction (i.e., counterclockwise in fig. 16) from a state of contact with the side walls 804 and 806 of the sector grooves 801 and 802 to a state of contact with the side walls 807 and 805 of the sector grooves 801 and 802 (see fig. 18 and 21). At this time, since the first lug 402 is locked by the first stopper 602 of the locking lever 600, one end of the shaft pin 803 is only rotated between the sidewall 804 and the sidewall 807 of the sector groove 801, and does not push the sidewall 804 or the sidewall 807 of the sector groove 801 to rotate, and the other end of the shaft pin 803 is only rotated between the sidewall 805 and the sidewall 806 of the sector groove 802, and does not push the sidewall 805 and the sidewall 806 of the sector groove 802 to rotate, that is, the shaft pin 803 cannot push the rotation of the boss member 400.

The main shaft 202 drives the trigger ram 300 to rotate in a first rotational direction (i.e., counterclockwise in fig. 17) to a state where the trigger ram does not contact the micro switch 901 (see fig. 17 and 20).

That is, the worker can drive the main shaft 202 to rotate by controlling the rotation of the switch body 201, so as to drive the trigger rod 300 to rotate along the first rotation direction or the first rotation direction, and further control the trigger part 301 of the trigger rod 300 to contact or not contact the micro switch 901, thereby sending a closing signal or an opening signal.

That is, in the energy storage state of the energy storage spring 700, the worker may still manually rotate the switch body 201 in the second rotation direction (i.e., clockwise direction in fig. 16 to 21) to achieve manual closing, or manually rotate the switch body 201 in the first rotation direction (i.e., counterclockwise direction in fig. 16 to 21) to achieve manual opening.

When the automatic controlled disconnecting mechanism is in a closing state and an overload or short circuit occurs, a control center (not shown) sends a signal to the magnetic flux converter 504 of the electronically controlled triggering mechanism 500 through the signal interface 113 and the PCB 902, the output shaft 505 of the magnetic flux converter 504 extends upward to drive the supporting rod 503 to move upward, the first extending portion 501 of the electronically controlled triggering mechanism 500 no longer locks the second limiting portion 603 of the locking lever 600, and the locking lever 600 can rotate in the second rotating direction, so that the first limiting portion 602 of the locking lever 600 no longer locks the first lug 402 of the bushing member 400.

Under the action of the torque provided by the energy storage spring 700, the bushing member 400 rotates along the first rotation direction, the sidewall 804 of the sector groove 801 of the bushing member 400 pushes one end of the shaft pin 803, and the sidewall 806 of the sector groove 802 pushes the other end of the shaft pin 803, so that the shaft pin 803 rotates along the first rotation direction, the shaft pin 803 drives the main shaft 202 to rotate along the first rotation direction, the main shaft 202 drives the trigger plunger 300 to rotate along the second direction, the trigger portion 301 is no longer in contact with the microswitch 901 (see fig. 19 to 21 in a matching manner), and the microswitch 901 sends a brake-off signal, so that automatic brake-off (i.e., brake-off) can be realized. The process is driven by the torsion spring, so that the response is quick, and the problem of low response speed of the traditional scheme is solved.

During the rotation of the bushing member 400 in the first rotation direction (i.e., counterclockwise in fig. 18 and 21), the first lug 402 pushes the first position-limiting portion 602, so that the first position-limiting portion 602 drives the latch lever 600 to overcome the action of the return spring 601 and rotate around the axis of the latch lever 600 itself in the second rotation direction (i.e., clockwise in fig. 18 and 21), so that the first position-limiting portion 602 leaves a space for the rotation of the first lug 402.

After the first lug 402 passes the first stopper portion 602 in the first rotational direction (i.e., counterclockwise in fig. 14 and 18), the latch lever 600 rotates back to the natural state about its axis in the first rotational direction (i.e., counterclockwise in fig. 18) by the return spring 601.

After the worker removes the fault, he opens the nut assembly 107, presses the supporting rod 503, and the first extension 501 of the electrically controlled trigger mechanism 500 locks the second limiting portion 603 of the locking rod 600 again (i.e., resets) to prepare for the next use.

For convenience in explanation and accurate definition in the appended claims, the terms "upper", "lower", "inner", "outer", "upper", "lower", "upward", "downward", "front", "rear", "back", "inside", "outside", "inward", "outward", "inside", "outside", "inner", "outer", "forward", "rearward" are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to make and utilize the invention in various exemplary embodiments and with various alternatives and modifications. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (13)

1. A rotary stored energy unlocking device for a rotary switch, comprising:

a housing;

a knob assembly mounted to the housing and provided with a spindle;

a boss member rotatably mounted to the housing, a side portion of the boss member being provided with a first lug;

the electronic control trigger mechanism is provided with a first extension part capable of moving linearly or rotating;

the lock catch rod is pivotally arranged at the side part of the shaft sleeve component through a return spring and is provided with a first limit part matched with the first lug of the shaft sleeve component and a second limit part matched with the first extension part of the electric control trigger mechanism; and

an energy storage spring connected between the boss member and the housing.

2. A rotary stored energy unlocking device for rotary switch according to claim 1, characterized in that the force direction of the first lug acting on the first limiting portion is the tangential direction of the arc of the rotation locus of the first limiting portion.

3. A rotary stored energy unlocking device for a rotary switch according to claim 1, characterized in that the bushing member is provided with a second lug, the bushing member being adapted to twist the stored energy spring to the stored energy state by means of the second lug, and the stored energy spring being adapted to rotate the bushing member in the first rotational direction by means of the second lug when the stored energy spring is released.

4. A rotary stored energy unlocking device for rotary switch according to claim 3 wherein the stored energy spring is provided in plurality.

5. A rotary stored energy unlocking device for rotary switch according to claim 3 wherein said stored energy spring is provided as one.

6. A rotary stored energy unlocking device for a rotary switch according to claim 3 wherein said second lug is provided in plurality.

7. A rotary stored energy unlocking device for rotary switch according to claim 3, characterized in that the second lug is provided as one.

8. A rotary energy storage unlocking device for a rotary switch according to claim 3 wherein the bushing member is provided within the housing and is provided at its center with a central hole for the passage of the main shaft, the main shaft passing through the central hole and being connected with the bushing member by a one-way transmission assembly such that the main shaft transmits torque to the bushing member upon rotation in the second rotational direction and the bushing member transmits torque to the main shaft upon rotation in the first rotational direction.

9. A rotary energy storage delatch device for a rotary switch as claimed in claim 8, wherein said one-way transmission assembly includes:

at least one scalloped groove disposed in a middle portion of the boss member, the at least one scalloped groove communicating with the central bore; and

a shaft pin horizontally mounted to the main shaft, at least one end of the shaft pin extending to an inside of a corresponding one of the sector grooves.

10. The rotary energy storage unlocking device for the rotary switch according to claim 1, further comprising a mounting rack, wherein the mounting rack is mounted in the housing, and a clamping groove is formed in the mounting rack;

the electronic control trigger mechanism comprises a supporting rod, the supporting rod is provided with a second extending part corresponding to the clamping groove, and the first extending part is arranged on the supporting rod;

the second extending part can be clamped in the clamping groove and move along the clamping groove, and the first extending part can lock the second limiting part of the lock catch rod, so that the first limiting part of the lock catch rod can prevent the first lug of the shaft sleeve component from rotating along the first rotating direction;

after receiving the control signal, the support rod of the electrically controlled trigger mechanism can drive the first extension portion to move, so that the first extension portion no longer locks the second limiting portion of the lock catch lever, and the first limiting portion of the lock catch lever no longer prevents the first lug of the shaft sleeve member from rotating in the first rotation direction.

11. The rotary energy storage unlocking device for a rotary switch according to claim 10, wherein the electrically controlled trigger mechanism further comprises a magnetic flux transformer provided with an output shaft, and the bottom of the support rod is fixedly connected to the output shaft of the magnetic flux transformer.

12. A rotary stored energy unlocking device for a rotary switch according to claim 1 wherein one end of the stored energy spring extends in a direction close to a central axis of the stored energy spring and the extending direction of one end of the stored energy spring is at an angle to the central axis of the stored energy spring;

the other end of the energy storage spring extends along the direction far away from the central shaft of the energy storage spring, and the extending direction of the other end of the energy storage spring and the central shaft of the energy storage spring form a certain angle.

13. A rotary stored energy unlocking device for rotary switch according to claim 1, characterized in that the rotary stored energy unlocking device for rotary switch further comprises:

the trigger ejector rod is fixedly connected to the main shaft and rotates along with the rotation of the main shaft, and one end of the trigger ejector rod is provided with a trigger part;

the micro switch is arranged in the shell, and the trigger ejector rod can rotate to a state that the trigger part is contacted with the micro switch under the driving of the main shaft.

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