CN117198771A - Operating assembly for a moving part and dual power transfer switch - Google Patents

Abstract

The present invention provides an operation assembly for operating a moving member movable between a first position and a second position and including a first driven portion and a second driven portion, the operation assembly comprising: a driving member movable between an initial position and a driving position, and including a first driving portion and a second driving portion; wherein when the moving member is at the first position, the first driving part drives the first driven part by the movement of the driving member from the initial position to the driving position so as to move the moving member from the first position toward the second position; and wherein the second driving portion drives the second driven portion by movement of the driving member from the initial position to the driving position when the moving member is in the second position, so that the moving member moves from the second position toward the first position. The invention also provides a dual power transfer switch comprising the operating component.

Description

Operating assembly for a moving part and dual power transfer switch

Technical Field

The present invention relates to an operating assembly for a moving part and a dual power transfer switch including the same.

Background

In some mechanical devices, moving parts are often included, which can typically move between two positions. In the electrical field, a dual power Transfer Switch (TSE) is a relatively important electrical device switch for powering important loads to ensure electrical continuity. The TSE typically includes a moving contact lever, a two-position TSE having a normal position a (power on 1) and a standby position B (power on 2), as shown in fig. 7.

In the prior art, if the movable contact crank arm 1 needs to be switched between the positions A and B, driving forces in different directions need to be applied. The common scheme is that two sets of unidirectional driving devices are arranged for the crank arm 1 so as to apply driving forces along different directions respectively; or a set of devices capable of performing bidirectional driving is arranged. Both of these existing schemes have the disadvantages of complex structure, many parts and poor reliability.

Disclosure of Invention

In view of the above-mentioned problems and needs, the present disclosure proposes a novel technical solution, which solves the above-mentioned problems and brings about other technical effects due to the following technical features.

The present invention provides an operation assembly for operating a moving member movable between a first position and a second position and including a first driven portion and a second driven portion, the operation assembly comprising: a driving member movable between an initial position and a driving position, and including a first driving portion and a second driving portion; wherein when the moving member is at the first position, the first driving part drives the first driven part by the movement of the driving member from the initial position to the driving position so as to move the moving member from the first position toward the second position; and wherein the second driving portion drives the second driven portion by movement of the driving member from the initial position to the driving position when the moving member is in the second position, so that the moving member moves from the second position toward the first position.

Preferably, the first driven portion and the first driving portion are close to each other and the second driven portion and the second driving portion are distant from each other when the moving member is in the first position, and the first driven portion and the first driving portion are distant from each other and the second driven portion and the second driving portion are close to each other when the moving member is in the second position.

Preferably, the driving member is configured to: after the first driving part drives the first driven part and reaches the driving position of the driving piece, the second driven part applies a force to the second driving part along with the movement part continuing to move towards the second position so as to enable the driving piece to return to the initial position, and after the second driving part 2 drives the second driven part and reaches the driving position of the driving piece, the first driven part applies a force to the first driving part along with the movement part continuing to move towards the first position so as to enable the driving piece to return to the initial position.

Preferably, the first driven portion and/or the second driven portion comprises a roller.

Preferably, the moving component further comprises an energy storage mechanism, wherein the energy storage mechanism stores energy in the process of driving the first driven part by the first driving part, and releases the stored energy to enable the moving component to move to the second position after the first driving part is separated from the first driven part; and the energy storage mechanism stores energy in the process of driving the second driven part by the second driving part, and releases the energy storage after the second driving part is separated from the second driven part so as to enable the moving part to move to the first position.

Preferably, the energy storage mechanism is provided as a compression spring and is pivotally connected to one end of the moving member, and the compression spring is in a dead-centre position when the driving member reaches the driving position.

Preferably, the drive member has a pivot axis and the drive member is rotatable about the pivot axis between an initial position and a drive position.

Preferably, the driving member is formed as a plate-like member, a portion of its outer contour serving as the first driving portion and another portion of its outer contour serving as the second driving portion.

Preferably, the operating assembly further comprises an actuator movable between an initial position and an actuated position, wherein the actuator urges the drive member from the initial position to the drive position during movement from the initial position to the actuated position.

Preferably, the operating assembly further comprises a transmission member pivotally connected to the driving member by a pivot shaft and having a first end and a second end on opposite sides of the pivot shaft; wherein the first end is movably disposed in a chute on the drive member and the second end is movable along a first contour of the actuator member during movement of the actuator member from the initial position to the actuated position such that the actuator member urges the drive member from the initial position to the drive position via the transmission member.

Preferably, the driving member includes a return spring capable of returning the driving member from the driving position to the initial position, the return spring being connected to the first end of the transmission member.

Preferably, the first profile applies a first torque about the pivot of the transmission member to the second end during movement of the actuation member from the initial position to the actuated position such that the first end of the transmission member is held against the distal end of the chute.

Preferably, the actuator further comprises a second contour which is continuous with the first contour, wherein, after the actuator has reached the actuated position, the second end of the transmission element is disengaged from the first contour of the actuator and moves onto the second contour.

Preferably, when the second end of the transmission member moves to a portion of the second profile that meets the first profile, the meeting portion applies a second torque to the second end about the pivot of the transmission member such that the second end of the transmission member moves along the second profile and the second torque is opposite the first torque.

Preferably, the second profile of the actuator moves away from the second end of the transmission member during return of the actuator from the actuated position to the initial position.

Preferably, after the second profile of the actuator moves away from the second end of the driver, the return spring continues to contract and pivot the driver about its pivot to return the second end of the driver to the first profile of the actuator.

Preferably, the actuator comprises energy storage means which are capable of releasing energy from the actuator to move the actuator from the initial position to the actuated position.

Preferably, the energy storage device has a fixed pivot end and a movable pivot end pivotally connected to the actuator, wherein the energy storage device, when storing energy, causes the actuator to pivot from the actuated position to the initial position.

Preferably, the operating assembly further comprises a stop arranged to exert a stop effect on one of the actuator and the energy storage device to stop the actuator in its actuated position.

The invention also provides a double-power transfer switch which comprises the movable contact crank arm as a moving part and the operation assembly.

According to the invention, the free switching of the moving part between the first position and the second position can be realized by only one set of operating component mechanism through the unidirectional movement of the single driving piece, so that the structure is simpler, and the occupied space is less.

Drawings

FIGS. 1-3 are schematic diagrams of operational components according to the present invention shown at different viewing angles;

FIG. 4 is a schematic illustration of a process of moving a movable contact lever from a first position to a second position by an operating assembly according to the present invention;

FIG. 5 is a schematic illustration of the movement of the movable contact lever from the second position to the first position by the operating assembly according to the present invention;

fig. 6A and 6B are schematic illustrations of the interaction relationship between the transmission member and the actuating member during operation of the operating assembly according to the present invention.

Fig. 7 is a schematic view of different on positions of the movable contact lever.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the specific embodiments of the present disclosure. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Possible implementations within the scope of the present disclosure may have fewer components, have other components not shown in the drawings, different components, differently arranged components, differently connected components, etc., than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Where the number of components is not specified, the number of components may be one or more; likewise, the terms "a," "an," "the," and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "mounted," "configured," "connected," or "connected" and the like are not limited to physical or mechanical mounting, configuration, connection, but may include electrical mounting, configuration, connection, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships when the apparatus is in use or positional relationships shown in the drawings, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.

According to the present invention, an operating assembly for a moving part is provided. And the invention is described hereinafter by way of example of an operating assembly for a moving contact lever in a TSE. It will be appreciated that the locking mechanism of the present invention may also be applied to any other electrical device, mechanical device, etc. including circuit breakers, relays, like moving parts.

As previously mentioned, fig. 7 shows a common lever 1 for a moving contact (as an example of the moving part) which can be moved between a first position and a second position (for example, corresponding to the normal position a and the standby position B shown in fig. 7, respectively). The switching between the different positions of the lever 1 can be caused by, for example, a manual switching mechanism or an electric switching mechanism of the TSE or the like. In addition, the lever 1 generally comprises a charge spring 13 pivotally connected thereto. During the movement of the lever 1 from the normal position a or from the standby position B towards the intermediate position, the lever 1 charges the charge spring 13 (the spring is compressed), and when the lever 1 is in the intermediate position, the charge spring 13 is in the spring dead center position. It should be noted that although an intermediate position is described, the moving lever 1 does not stay in the intermediate position due to its inertia, but only moves between the first position and the second position without the other mechanism locking.

Further, referring to fig. 1-3, the lever 1 comprises a first driven part 11 and a second driven part 12, which may for example form a protrusion or the like at a suitable location of the lever 1 for being driven by the operating assembly according to the invention. In a preferred embodiment, the first driven part 11 and the second driven part 12 each comprise a roller, which can be configured to rotate about a pivot provided on the lever 1. By providing rollers, the interaction between the driving part and the driven part can be improved, friction can be reduced, and the movement between them can be smoother.

According to a preferred embodiment of the invention, the operating assembly comprises a drive 2 for driving the lever 1. The driving member 2 is movable between an initial position and a driving position, and includes a first driving portion 21 and a second driving portion 22. Specifically, when the crank arm 1 is in the first position, the first driving portion 21 drives the first driven portion 11 by the movement of the driving member 2 from the initial position to the driving position to move the moving member from the first position toward the second position; when the lever 1 is in the second position, the second driving portion 22 drives the second driven portion 12 by the movement of the driver 2 from the initial position to the driving position, so that the moving member moves from the second position toward the first position.

According to the present invention, since the positions of the lever 1 in the first position and the second position are different, the positions of the first driven portion 11 and the second driven portion 12 are also changed accordingly, and thus by properly setting the positions of the first driven portion 11 and the second driven portion 12 on the lever 1, it is possible to realize a state in which the lever 1 is to be driven by different driven portions when in different positions. For example, when the lever 1 is in the first position, the first driven portion 11 and the first driving portion 21 are close to each other and the second driven portion 12 and the second driving portion 22 are distant from each other; when the lever 1 is in the second position, the first driven portion 11 and the first driving portion 21 are away from each other and the second driven portion 12 and the second driving portion 22 are close to each other. With this arrangement, in either position of the lever 1, the driving member 2 can drive the corresponding driven portion only by unidirectional movement toward the driving position, so that the lever 1 moves toward the other position.

Compared with the complex prior art that two sets of driving devices are respectively arranged for the movement towards two positions or a complex bidirectional driving mechanism is arranged in one set of driving device, the invention can realize the two-position driving of the crank arm 1 by only arranging a single driving piece capable of carrying out unidirectional movement. It should be understood that the "unidirectional movement" as described herein is that the driving direction of the driving member is unidirectional, but that the driving member may still return to the original position.

It should be understood that the movement of the driving member may take a variety of forms, such as translational or rotational movement, as long as it is capable of acting on the respective driving portion during unidirectional movement, in accordance with the principles of the present invention.

The specific structure of each component and the like in a preferred embodiment of the operation assembly according to the present invention will be described below.

Referring to fig. 1 to 5, the first driven part 11 and the second driven part 12 may be disposed at both sides of the pivot shaft 10 of the crank arm 1, preferably, a line between the first driven part 11 and the pivot center of the pivot shaft 10 and a line between the second driven part 12 and the pivot center of the pivot shaft 10 have an obtuse angle toward the driver 2.

The drive element 2 is preferably formed as a plate-shaped element, a part of its outer contour (or outer edge) being used as a first drive 21 and another part of its outer contour being used as a second drive 22. The driving member 2 also preferably has a pivot 20 and the driving member 2 is arranged for rotational movement about the pivot 20 between an initial position and a driving position. The driving member 2 may also be implemented in other shapes or structures according to the principle of the present invention, for example, may be formed in a rod shape or a block shape, and may include protruding portions as a first driving portion and a second driving portion, additional mounting members, and the like.

The power source of the driving member 2 may take a variety of forms. For example, it is possible to provide simply an application motor for the driver 2 to rotate the driver 20 about its pivot axis between the initial position and the drive position. Alternatively, the driving member 2 may be actuated by an actuating member 3 described later, for example.

Further preferably, the driving member 2 may further include a return spring (not shown) that returns the driving member 2 from the driving position to the initial position. The return spring may be provided at any suitable location of the driver 2, for example, to enable the driver 2 to return when the power urging the movement of the driver 2 is removed.

Further preferably, the invention proposes to cause the movement of the driving member 2 from the initial position towards the driving position by means of an actuating member 3 as shown. In particular, the actuator 3 is arranged to be movable between an initial position and an actuated position, whereby the actuator 3 preferably also has the feature of unidirectional movement. The actuator 3 moves the driver 2 from the initial position to the driving position during the movement from the initial position to the actuating position. It will be appreciated that the unidirectional movement of the actuator 3 may also be a rotational movement or a translational movement. In the preferred embodiment shown in the drawings, the actuator 3 is embodied as a plate-like member and is rotatable about its pivot 30.

The actuator 3 may apply the actuation force directly to the drive 2, for example by hinging the two, or may effect an indirect power transmission through a linkage or the like. In a preferred embodiment according to the invention, the transmission actuation of the driving element 2 by the actuating element 3 is achieved by providing a transmission element 4.

In particular, the transmission element 4 may be embodied as a plate-like or rod-like element, which is pivotally connected to the drive element 2 by means of a pivot 40. The pivot 40 may be provided on the driving member 2, for example as a post integrally formed with the driving member 2 or fixedly attached in any way. The transmission member 4 may have a first end 41 and a second end 42 on either side of the pivot 40.

Further, the first end 41 is movably disposed in the slide groove 23 of the driving element 2. The second end 42 is movable in relation to the actuator 3. According to a preferred embodiment, the actuator 3 may comprise a first profile 31. During the movement of the actuator 3 from the initial position to the actuated position, the second end 42 follows the first contour 31 of the actuator 3, so that the actuator 3 via the transmission element 4 forces the drive element 2 from the initial position to the drive position. In addition, in order to facilitate the movement of the second end 42 on the first profile 31 of the actuator 3, this second end 42 may preferably comprise a roller. The first profile 31 is preferably formed as a concave arcuate profile.

As previously described, the driving member 2 may be reset by a reset spring. In the preferred embodiment shown in the drawings, the driving member 2 may comprise a return spring 24 connected to a first end 41 of the driving member 4, for example to a stud protruding from the first end 41, as shown in fig. 2. The return spring 24 may be stretched during the movement of the actuating member 3 to urge the actuating member 2 towards the actuated position and return the actuating member 2 to its initial position when the return spring 24 releases its elastic potential energy.

On the one hand, although the return spring 24 is not directly connected to the driving member 2, the force of the return spring 24 can be transmitted to the driving member 2 through the first end 41 provided in the chute 23 of the driving member 2 to return the driving member 2.

On the other hand, with further reference to fig. 6A, during the movement of the actuator 3 from the initial position to the actuated position, the first profile 31 of the actuator 3 applies a first torque (clockwise in the orientation of fig. 6A, as indicated by the arrow) about the pivot 40 of the actuator 4 to the second end of the actuator 4, so that this first end 41 abuts against the extremity of the chute 23 (right extremity in fig. 6A), while the first profile 31 of the actuator 3 also applies a torque in the same direction to the second end 42, so that the actuator 4 remains stable at all times, ensuring that the actuator 3 transmits the actuation force to the driver 2 through the actuator 4.

Preferably, two sub-components constituting the transmission element 4 can be provided on both sides of the driving element 2, the driving element 2 being located between the two sub-components. Accordingly, two return springs 24 may be provided for the two sub-components, as shown in fig. 1-2.

Further preferably, the actuator 3 may also comprise a second profile 32, which is continuous with the first profile 31. The second profile 32 is preferably formed as a convex arcuate profile. The angle between the chord of the arc of the first profile 31 and the chord of the arc of the second profile 32 is preferably less than or equal to 90 °. In addition, in the case where the second profile 32 is preferably formed as a convex arc profile, the first profile 31 may also be preferably formed to have a convex arc profile at a portion that meets the second profile 32, and a concave arc profile, i.e., to have a substantially S-shaped profile, at a portion that is remote from the second profile 32, according to various embodiments. The functional relationship between the first profile 31 and the second profile 32 and the respective components will be further described in connection with the operation of the operating assembly.

According to the invention, the actuating member 3 may be caused to exert an actuating action on the driving member 2 by any suitable means or mechanism. For example, an electromotive device can be used simply for the actuator 3 in order to rotate the actuator 3 between the initial position and the actuating position.

According to a preferred embodiment of the invention, the actuator 3 may comprise energy storage means 33 which are capable of releasing energy storage to the actuator 3 to move the actuator 3 from the initial position to the actuated position. The energy storage device 33 may be operated by an external mechanism, not shown, which is typically actively operated by a user. In particular, the energy storage means 33 may comprise, for example, a compression spring. The energy storage device 33 may have a fixed pivot end 331 and a movable pivot end 332 pivotally connected to the actuator 3. The movable pivot end 332 may be directly pivotally connected to a suitable location of the actuator 3, for example. Alternatively, in the preferred embodiment shown in the drawings, the movable pivot end 332 may be pivotally connected to one end of a web 34 fixedly mounted to the actuator 3 as shown in fig. 3 (the web 34 is omitted from fig. 1 and 2 for clarity of illustration).

With this construction, the energy storage device 33 can bring the actuator 3 from the actuated position to the initial position when energy is stored, and the energy storage device 33 can cause the actuator 3 to move from the initial position to the actuated position when energy is released. The functional relationship between the energy storage device 33 and the actuator 3 will be described later in connection with the operation of the operating assembly.

Furthermore, the operating assembly according to the invention may further comprise a stop member 35 arranged to exert a stop effect on one of the actuator member 3 (including its connecting plate 34) and the energy storage device 33 to stop the actuator member 3 in its actuated position. In the preferred embodiment shown in the figures, the stop 35 is embodied as a pin against which the actuator 3 will rest when it reaches the actuated position, and will not return the actuator 3 from the actuated position to the initial position until the energy storage means 33 of the actuator 3 are operated by an external mechanism.

In addition, although not shown, the operating assembly further includes a frame for mounting various components of the operating assembly, such as the crank arm 1, the driving member 2, the actuating member 3, the energy stocking mechanism 13, the pivot of the energy stocking means 33, the fixed end of the return spring 24, the stopper 35, and the like. The housing may be part of a housing or frame of a dual power transfer switch.

The operation of the operating assembly according to the present invention is described below in connection with the staged illustrations of fig. 4 and 5. It should be understood that in order to show the states of the respective components, the respective components are subjected to transparent processing in fig. 4 and 5.

Referring to stage I of fig. 4, before the operating assembly begins to operate, the lever 1 is in the first position and the energy storage device 33 of the actuator 3 is in the stored energy state (i.e. the compression spring is in the compressed state). From this state, if the energy storage device 33 releases its energy storage (e.g. according to an active operation by the user), the energy storage device 33 will simultaneously rotate and its compression spring will extend. The actuator 3, which is pivotally connected to the energy storage means 33, will rotate counter-clockwise from the initial position towards the actuated position. The actuator 3 will in turn push the second end 42 of the transmission member 4 via its first contour 31 and push the driving member 2 via the transmission member 4 to rotate counter-clockwise from the initial position towards the driving position. The return spring 24 connected to the first end 41 of the transmission member 4 will also be stretched. As shown in this stage I, the first driving portion 21 of the driver 2 is located close to the first driven portion 11 of the lever 1.

See stage II of fig. 4. As the actuator 3 rotates under the pushing of the energy storage device 33, the first driving portion 21 of the driving member 2 pushes the first driven portion 11, so that the lever 1 further rotates, and the rotation of the lever 1 also causes the energy storage mechanism 13 thereof to store energy (i.e. the compression spring is compressed). To the state shown in this phase II, the relevant components are in the following states:

the first driving part 21 of the driving member 2 has completed driving the crank arm 1, and the driving member 2 reaches the driving position, and at this time, the second driving part 22 of the driving member 2 also reaches a position close to the second driven part 12;

the compression spring of the energy storage mechanism 13 of the lever 1 is in the under dead point position (i.e. has not yet reached the true spring dead point position), thereby ensuring that the lever 1 cannot be rotated further due to the lever 1 reaching the spring dead point while the driver 2 reaches the driving position;

the actuator 3 reaches the actuated position and the actuator 3 can stay in this actuated position temporarily without returning to the initial position (the return of the actuator 3 will depend on when its energy storage means 33 is operated by an external mechanism);

the second end 42 of the transmission element 4 is disengaged from the first contour 31 of the actuating element 3 and moves onto the second contour 32 and will then be free to move relative to this second contour 32.

See stage III of fig. 4. Since the crank arm 1 always moves under the drive of the driving piece 2 from the stage I to the stage II, the moving crank arm 1 can continue to move under the inertia action of the driving piece 2, the first driving part 21 is separated from the first driven part 11, then the crank arm 1 passes through the spring dead point of the energy storage mechanism 13, and the energy storage mechanism 13 releases the elastic potential energy after passing the dead point, so that the crank arm 1 is further pushed to rotate towards the second position;

with further rotation of the lever 1, the second driven portion 12 thereof will exert a force on the second driving portion 22 of the driver 2 to urge the driver 2 to return clockwise from the driving position to the initial position;

since the second end 42 of the transmission member 4 has disengaged from the first contour 31 of the actuator 3, the return spring 24 will contract in case the second end 42 of the transmission member 4 loses the support of the first contour 31; on the one hand, the return spring 24 pulls the driving member 2 further back towards the initial position through the first end 41 of the transmission member 4; on the other hand, referring to fig. 6B, when the portion of the second profile 32 of the transmission member 4 meets the first profile 31, this meeting portion applies to said second end 42 a second torque (anticlockwise torque, as indicated by the arrow in the orientation shown in fig. 6B) about the pivot 40 of the transmission member 4, so that the second end 42 of the transmission member 4 moves along this second profile 32, and this second torque is opposite to the first torque previously described (as indicated by the arrow in fig. 6A); further, as the transmission member 4 is rotated by the counterclockwise torque, the first end 41 moves in the chute 23, and the second end 42 of the transmission member 4 moves freely on the second profile 32 of the actuator 3 under the action of the return spring 24;

by the end of this phase III, the driving element 2 returns to the initial position and the lever 1 reaches the second position, thus completing the switching of the double power transfer switch from the normal position to the standby position.

Stage IV of fig. 4 mainly relates to the energy storage operation of the energy storage device 33 of the actuator 3. Specifically, the energy storing means 33 of the actuator 3 may be operated by an external mechanism, not shown, to compress its compression spring again, while the energy storing means 33 will rotate counterclockwise, and thus the actuator 3 pivotally connected thereto will rotate clockwise towards its initial position; as a result of the rotation of the actuator 3, its second contour 32 will disengage from the second end 42 of the transmission member 4 and the return spring 24 will also contract further, bringing the transmission member 4 into rotation, returning the second end 42 to the first contour 31. So far, the components of the operating assembly have been returned to the initial position and are ready for the switching operation of the lever 1 from the second position towards the first position.

Fig. 5 shows the switching of the lever 1 from the second position into the first position under the operation of the operating assembly according to the invention. Thus, following the stage numbering of fig. 4, the process of fig. 5 is labeled stage IV, stage V, stage VI, stage VII.

Due to the "single driving member-unidirectional movement" feature of the present invention, the operation mode of the operation assembly during the switching process of fig. 5 is different only in the driving stage of the driving member 2 on the crank arm 1, except for the state of the crank arm 1, which is different from that of fig. 4, compared with the operation process shown in fig. 4. And at the end of the operating procedure shown in fig. 5 (stage VII), the lever 1 and the operating assembly also return to the same state as stage I in fig. 4.

The operation procedure shown in fig. 5 is briefly described below, and the description of the same is simplified as that in fig. 4.

In particular, starting from phase IV of fig. 5, if the energy storage device 33 releases its energy storage, the actuator 3 pivotally connected thereto will also rotate counter-clockwise from the initial position towards the actuated position. The actuator 3 will then push the driving member 2 via the transmission member 4 to rotate counter-clockwise from the initial position towards the driving position. The second driving part 22 of the driving element 2 is located close to the second driven part 12 of the pushing lever 1.

See stage V of fig. 5. As the actuator 3 further rotates, the second driving portion 22 of the driving member 2 pushes the second driven portion 12 to further rotate the crank arm 1, and the energy storage mechanism 13 thereof stores energy. To the state shown in this phase V, the relevant components are in the following states:

the second driving part 22 of the driving member 2 has completed driving the crank arm 1, the driving member 2 reaches the driving position, and the first driving part 21 of the driving member 2 also reaches a position close to the first driven part 11;

the compression spring of the energy storage mechanism 13 of the crank arm 1 is at a dead-point position;

the actuator 3 reaches an actuated position and the actuator 3 can temporarily stay in the actuated position without returning to the initial position;

the second end 42 of the transmission element 4 is disengaged from the first contour 31 of the actuating element 3 and moves onto the second contour 32.

See stage VI of fig. 5. As the moving crank arm 1 continues to move under the inertia effect of the crank arm, the second driving part 22 is separated from the second driven part 12, then the crank arm 1 passes through the spring dead point of the energy storage mechanism 13, and the energy storage mechanism 13 further pushes the crank arm 1 to rotate towards the first position after passing the dead point;

with further rotation of the lever 1, the first driven portion 11 thereof will exert a force on the first driving portion 21 of the driver 2 to urge the driver 2 to return clockwise from the driving position to the initial position;

since the second end 42 of the transmission element 4 has been disengaged from the first contour 31 of the actuating element 3, the return spring 24 will contract and pull the driving element 2 further back towards the initial position and rotate the transmission element 4, causing its first end 41 to move in the chute 23 and its second end 42 to move freely on the second contour 32 of the actuating element 3;

by the end of this phase VI, the driving member 2 returns to the initial position and the lever 1 reaches the first position, thus completing the switching of the double power transfer switch from the standby position to the normal position.

Stage VII of fig. 5 also mainly relates to the energy storage operation of the energy storage device 33 of the actuator 3. Briefly, the energy storage means 33 of the actuator 3 can store energy again, the actuator 3 being rotated clockwise towards its initial position; the return spring 24 will also contract further bringing the transmission member 4 into rotation, returning the second end 42 to the first profile 31. So far, the components of the operating assembly have been returned to the initial position (the same as the phase I state in fig. 4) and are ready for the switching operation of the lever 1 from the first position towards the second position.

The exemplary implementation of the present disclosure has been described in detail hereinabove with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and adaptations to the specific embodiments described above may be made and that various combinations of the technical features and structures set forth in the present disclosure may be practiced without departing from the scope of the present disclosure, which is defined in the appended claims.

Claims (20)

1. An operating assembly for operating a moving member movable between a first position and a second position and comprising a first driven portion (11) and a second driven portion (12), the operating assembly comprising:

a driving member (2) movable between an initial position and a driving position, and including a first driving portion (21) and a second driving portion (22);

wherein when the moving member is in the first position, the first driving part (21) drives the first driven part (11) by the movement of the driving member (2) from the initial position to the driving position so as to move the moving member from the first position toward the second position; and

wherein when the moving member is in the second position, the second driving part (22) drives the second driven part (12) by the movement of the driving member (2) from the initial position to the driving position, so that the moving member moves from the second position toward the first position.

2. The operating assembly of claim 1, wherein,

when the moving member is in the first position, the first driven portion (11) and the first driving portion (21) are close to each other and the second driven portion (12) and the second driving portion (22) are distant from each other, and

when the moving member is in the second position, the first driven portion (11) and the first driving portion (21) are away from each other and the second driven portion (12) and the second driving portion (22) are close to each other.

3. An operating assembly according to claim 1, wherein the driving member (2) is arranged to:

after the first driving part (21) drives the first driven part (11) and reaches the driving position of the driving piece (2), the second driven part (12) applies a force to the second driving part (22) to promote the driving piece (2) to return to the initial position along with the movement of the moving part to the second position, and

after the second driving part (22) drives the second driven part (12) and reaches the driving position of the driving piece (2), the first driven part (11) applies a force to the first driving part (21) along with the movement of the moving part towards the first position so as to promote the driving piece (2) to return to the initial position.

4. An operating assembly according to claim 3, wherein the first driven part (11) and/or the second driven part (12) comprises a roller.

5. The operating assembly of claim 3, wherein,

the moving part further comprises an energy storage mechanism (13), wherein,

the energy storage mechanism (13) stores energy in the process of driving the first driven part (11) by the first driving part (21), and the energy storage mechanism (13) releases the energy storage after the first driving part (21) is separated from the first driven part (11) so as to enable the moving part to move to the second position; and

the energy storage mechanism (13) stores energy during the driving of the second driven part (12) by the second driving part (22), and the energy storage mechanism (13) releases the stored energy after the second driving part (22) is separated from the second driven part (12) so as to enable the moving component to move to the first position.

6. An operating assembly according to claim 5, wherein the energy storage mechanism (13) is provided as a compression spring and is pivotally connected to one end of the moving part, and the compression spring is in a dead-centre position when the drive member (2) reaches the drive position.

7. An operating assembly according to claim 1, wherein the driving member (2) has a pivot (20) and the driving member (2) is in rotational movement about the pivot (20) between an initial position and a driving position.

8. An operating assembly according to claim 1, wherein the driving member (2) is formed as a plate-like member, a part of its outer contour serving as the first driving portion (21) and another part of its outer contour serving as the second driving portion (22).

9. The operating assembly according to any one of claims 1-8, further comprising an actuator (3) movable between an initial position and an actuated position,

wherein the actuator (3) urges the driver (2) from the initial position to the driving position during movement from the initial position to the actuated position.

10. The operating assembly according to claim 9, further comprising a transmission member (4) pivotally connected to the driving member (2) by a pivot (40) and having a first end (41) and a second end (42) on both sides of the pivot (40);

wherein the first end (41) is movably arranged in a slide groove (23) on the driving member (2), and the second end (42) is movable along a first contour (31) of the driving member (3) during movement of the driving member (3) from the initial position to the actuated position, so that the driving member (3) urges the driving member (2) from the initial position to the driven position via the transmission member (4).

11. An operating assembly according to claim 10, wherein the driving member (2) comprises a return spring (24) which enables the driving member (2) to return from the driving position to the initial position, the return spring being connected to the first end (41) of the transmission member (4).

12. An operating assembly according to claim 11, wherein the first profile (31) applies a first torque about the pivot (40) of the transmission member (4) to the second end (42) during movement of the actuation member (3) from the initial position to the actuated position, such that the first end (41) of the transmission member (4) is held against the extremity of the chute (23).

13. An operating assembly according to claim 12, wherein the actuator (3) further comprises a second profile (32) which is continuous with the first profile (31),

wherein, after the actuating element (3) has reached the actuating position, the second end (42) of the transmission element (4) is disengaged from the first contour (31) of the actuating element (3) and moves onto the second contour (32).

14. An operating assembly according to claim 13, wherein, when the second end (42) of the transmission member (4) moves to a portion of the second profile (32) that meets the first profile (31), said meeting portion applies a second torque to said second end (42) about the pivot (40) of the transmission member (4) such that the second end (42) of the transmission member (4) moves along the second profile (32) and the second torque is opposite to the first torque.

15. An operating assembly according to claim 14, wherein the second contour (32) of the actuator (3) moves away from the second end (42) of the transmission member (4) during the return of the actuator (3) from the actuated position to the initial position.

16. An operating assembly according to claim 15, wherein after the second profile (32) of the actuator (3) moves away from the second end (42) of the transmission member (4), the return spring (24) continues to contract and rotate the transmission member (4) about its pivot (40) to return the second end (42) of the transmission member (4) to the first profile (31) of the actuator (3).

17. An operating assembly according to claim 9, wherein the actuating member (3) comprises energy storage means (33) which are capable of releasing energy storage to the actuating member (3) to move the actuating member (3) from the initial position to the actuated position.

18. The operating assembly according to claim 17, wherein the energy storage device (33) has a fixed pivot end (331) and a movable pivot end (332) pivotally connected to the actuator (3), wherein the energy storage device (33) when storing energy brings the actuator (3) to pivot from the actuated position to the initial position.

19. An operating assembly according to claim 17, further comprising a stop member (35) arranged to exert a stop effect on one of the actuator member (3) and the energy storage device (33) to stop the actuator member (3) in its actuated position.

20. A dual power transfer switch comprising a moving contact lever as a moving part and an operating assembly as claimed in any one of claims 1 to 19.