CN219610333U - Separating and combining mechanism and fusion switch - Google Patents

Abstract

The present disclosure provides a switching mechanism and a fusion switch. The separating and combining mechanism comprises: a housing; the driving disc is pivotally arranged on the shell and drives the main contact to be closed or opened; the pre-charging static contact is fixed on the shell; the pre-charging moving contact is pivotally arranged on the shell; and the linkage mechanism is linked with the driving disc and can selectively drive the pre-charging moving contact to rotate so as to contact or separate from the pre-charging fixed contact, the pre-charging moving contact is firstly closed and then the driving contact is closed again during the rotation of the driving disc from the opening position to the closing position, the pre-charging moving contact is firstly separated and then the driving contact is separated during the rotation of the driving disc from the closing position to the opening position, and the pre-charging contact is firstly fully opened and then the main contact is fully opened. Through the structural design, the integrated circuit can integrate the isolation function, the pre-charging function and the main combination function, has a compact structure, improves the integration level of products, reduces the risks of poor circuit impedance and electrical contact, and saves cost.

Description

Separating and combining mechanism and fusion switch

Technical Field

The present disclosure relates to a switching mechanism and a fusion switch including the switching mechanism.

Background

With the vigorous development of new energy industries, research on electrochemical energy storage schemes is receiving a great deal of attention. In the existing switch cabinet, a plurality of electrical components such as a disconnecting switch, a contactor and the like are usually used and electrically connected. The arrangement of a plurality of electrical components not only occupies large space and is high in cost, but also has more electrical connection contact points among the components, so that the risks of line impedance and poor electrical contact are increased.

Therefore, how to design a multifunctional switching device to replace a plurality of electrical components such as a disconnecting switch and a contactor has become an urgent problem to be solved.

Disclosure of Invention

The utility model aims at providing a divide and close mechanism and including this divide and close mechanism's integration switch, a plurality of electrical components such as isolator, contactor make compact structure, improve the integrated level of product, compare in using a plurality of independent electrical components such as isolator and contactor, not only reduced the circuit connection between the electrical components, practice thrift the installation man-hour, but also reduced the probability that circuit impedance and risk take place, practice thrift occupation space to the cost is saved.

The present disclosure provides a separating and combining mechanism, comprising: a housing; the driving disc is pivotally arranged on the shell, can rotate between a closing position and a separating position, and is fixed on the shell; the driving contact is linked with the driving disc, and when the driving disc is positioned at a closing position, the driving contact is contacted with the main fixed contact; when the driving disc is positioned at the opening position, the driving contact is separated from the main fixed contact; the opening and closing mechanism further comprises: the pre-charging static contact is fixed on the shell; the pre-charging moving contact is pivotally arranged on the shell and can rotate between a first position and a second position, wherein the pre-charging moving contact is separated from the pre-charging fixed contact when being in the first position, and the pre-charging moving contact is contacted with the pre-charging fixed contact when being in the second position; and the linkage mechanism is linked with the driving disc and can selectively drive the pre-charging moving contact to rotate, wherein the pre-charging moving contact rotates from the first position to the second position during the rotation of the driving disc from the opening position to the closing position, the driving contact is contacted with the main fixed contact again, the pre-charging moving contact rotates from the second position to be separated from the pre-charging fixed contact during the rotation of the driving disc from the closing position to the opening position, the driving contact is separated from the main fixed contact again, the pre-charging moving contact reaches the first position firstly, and the driving contact is completely opened again.

In one or more embodiments, the linkage includes: the driving piece comprises a first end part and a second end part, the first end part is pivoted with the driving disc, and the second end part is slidably connected with the shell; and the connecting rod assembly comprises a fixed end part and a connecting end part, wherein the fixed end part is pivoted to the shell, and the connecting end part is pivoted to the pre-charging moving contact so as to form a multi-connecting-rod mechanism with the pre-charging moving contact, and the driving piece drives the multi-connecting-rod mechanism to enable the pre-charging moving contact to move towards a direction close to or far away from the pre-charging fixed contact.

In one or more embodiments, the linkage assembly includes a driven pin, and the driver includes a drive portion that selectively drives the driven pin and, in turn, the pre-charge contact.

In one or more embodiments, the connecting rod assembly includes: a first link including the fixed end and a first connection end; and the second connecting rod comprises the connecting end part and a second connecting end part, and the second connecting end part is pivoted with the first connecting end part.

In one or more embodiments, the first connection end is pivotally connected to the second connection end via the driven pin.

In one or more embodiments, the opening and closing mechanism further includes a contact spring acting on the pre-charge moving contact, the pre-charge moving contact having a dead point position between the first position and the second position, wherein the contact spring provides a biasing force to the pre-charge moving contact away from the pre-charge moving contact when the pre-charge moving contact is between the first position and the dead point position, and provides a biasing force to the pre-charge moving contact closer to the pre-charge moving contact when the pre-charge moving contact is between the dead point position and the second position.

In one or more embodiments, the device further comprises a trip mechanism pivotally coupled to the housing and configured to: and when the driving disc is in the switch-on position, the pre-charging moving contact is contacted with the pre-charging fixed contact, the driving disc continuously rotates to drive the driving contact to be contacted with the main fixed contact, and when the driving disc is in the switch-off position, the pre-charging moving contact is separated from the pre-charging fixed contact, and the driving disc continuously rotates to drive the driving contact to be separated from the main fixed contact.

In one or more embodiments, the trip mechanism includes a closing trip member pivotally connected to the housing via a pivot and capable of rotating between a closing release position and a closing stop position, wherein the closing trip member is capable of stopping the driving disc at the ready-to-close position when in the closing stop position, and the closing trip member is not capable of stopping the driving disc from rotating toward the closing position when in the closing release position.

In one or more embodiments, further comprising: an excitation operably coupled to the closing trip piece; and a reset elastic piece acting on the closing release piece, wherein the excitation part enables the closing release piece to pivot from the closing stop position to the closing release position when being excited, and the reset elastic piece enables the closing release piece to return from the closing release position to the closing stop position after being not excited.

In one or more embodiments, the closing trip element includes a closing stop surface and a closing driving surface, and the driving disc includes a stop element, where, when the stop element abuts against the closing stop surface during rotation of the driving disc from the opening position to the closing position, the driving disc is stopped at the ready-to-close position, and when the stop element abuts against the closing driving surface during rotation of the driving disc from the closing position to the opening position, the closing trip element is moved from the closing stop position to the closing release position, so that the driving disc can continue to rotate.

In one or more embodiments, the trip mechanism further includes a trip member pivotally coupled to the housing via the pivot and rotatable between a trip release position and a trip stop position, wherein the trip member is capable of stopping the drive disk in the ready trip position when in the trip stop position, and wherein the trip member does not block rotation of the drive disk toward the trip position when in the trip release position.

In one or more embodiments, the exciting portion drives the closing trip member to rotate, and when the reset elastic member drives the closing trip member to reset, the opening trip member can rotate together with the closing trip member.

In one or more embodiments, the trip mechanism further includes an elastic member, one end of the elastic member is pivoted to the trip release member, the other end of the elastic member is pivoted to the closing trip member, the trip release member has a dead point position and is located between the trip stop position and the trip release position, wherein when the trip release member is located between the trip stop position and the dead point position, the elastic member provides a biasing force for the trip release member to move toward the trip stop position, and when the trip release member is located between the dead point position and the trip release position, the elastic member provides a biasing force for the trip release member to move toward the trip release position.

In one or more embodiments, the opening release member includes an opening stop surface and an opening driving surface, wherein, when the driving disc rotates from the opening position to the closing position, the opening release member rotates from the opening stop position to the opening release position when the stop member abuts against the opening driving surface, and when the driving disc rotates from the closing position to the opening position, the driving disc is blocked at the ready opening position when the stop member abuts against the opening stop surface.

In one or more embodiments, the drive mechanism further comprises a mechanism energy storage configured to provide a force to continue rotation of the drive disk after the drive disk passes through the dead center position.

The disclosure also provides a fusion switch comprising the above-mentioned switching mechanism.

Drawings

The advantages and objects of the present disclosure will be better understood in the following detailed description of the preferred embodiments of the disclosure, taken in conjunction with the accompanying drawings. To better illustrate the relationship of the various components in the figures, the figures are not drawn to scale.

Fig. 1 to 8 are schematic diagrams of a switching mechanism according to an embodiment of the present disclosure in a process of rotating a driving disc from a switching-off position to a ready-to-close position, wherein:

FIG. 1 is a schematic view of a switching mechanism when a driving disc is located at a switching-off position;

FIG. 2 is a schematic view of the trip mechanism of FIG. 1;

FIG. 3 is a schematic view of the opening and closing mechanism prior to the drive plate contacting the opening and closing trip;

FIG. 4 is an enlarged view of a portion of the opening and closing mechanism with the drive plate just contacting the opening and closing trip member in the opening and closing stop position;

FIG. 5 is a schematic view of the opening and closing mechanism with the drive plate abutting the opening and closing release member in the opening and closing release position;

FIG. 6 is a schematic view of the trip mechanism of FIG. 5;

fig. 7 is a schematic diagram of the opening and closing mechanism immediately before the driving disc reaches the ready-to-close position and when the pre-charging moving contact contacts the pre-charging fixed contact;

fig. 8 is a schematic view of the opening and closing mechanism when the driving disc reaches the ready-to-close position.

Fig. 9 to 11 are schematic diagrams of a switching mechanism according to an embodiment of the present disclosure in a process of reversing a driving disc from a ready-to-close position to a switching-off position, wherein:

FIG. 9 is a schematic diagram of the opening and closing mechanism when the drive disk is reversed until the priming movable contact is about to be separated from the priming mirror contact;

FIG. 10 is a schematic diagram of the opening and closing mechanism when the drive disk is reversed until the pre-charge moving contact is separated from the pre-charge mirror contact;

FIG. 11 is a schematic view of the opening and closing mechanism when the driving disk is reversed to the opening position.

Fig. 12 to 14 are schematic diagrams showing a switching mechanism according to an embodiment of the disclosure in a process of rotating a driving disc from a ready-to-close position to a close position, wherein:

fig. 12 is a schematic view of the opening and closing mechanism when the driving disc is located at the ready-to-close position and the closing trip is located at the closing release position;

FIG. 13 is a schematic view of the trip mechanism of FIG. 12;

fig. 14 is a schematic view of the opening and closing mechanism when the driving disc is at the closing position.

Fig. 15 to 20 are schematic diagrams of a switching mechanism according to an embodiment of the present disclosure in a process of reversing a driving disc from a switching-on position to a switching-off position, wherein:

FIG. 15 is a schematic view of the opening and closing mechanism when the drive disk is reversed to the dead point position;

FIG. 16 is a schematic view of the opening and closing mechanism when the drive disk is reversed to the ready-to-open position;

FIG. 17 is a schematic view of the opening and closing mechanism with the drive plate in the ready-to-open position and the opening and closing trip in the open release position;

FIG. 18 is a schematic view of the opening and closing mechanism when the drive disk is reversed beyond the ready-to-open position;

FIG. 19 is a schematic view of the opening and closing mechanism when the driving disc continues to rotate reversely and the pre-charging contact is at the first position;

FIG. 20 is a schematic view of the opening and closing mechanism when the driving plate is reversed to the opening position.

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.

Fig. 1 illustrates a schematic diagram of a switching mechanism, which a fusion switch may include, according to an embodiment of the present disclosure. As shown, the opening and closing mechanism includes a housing H, a drive disk 1, a main contact (not shown), and a precharge contact 2. The driving disc 1 is pivotally provided on the housing H and is rotatable between a closing position (shown in fig. 1) and a separating position (shown in fig. 14), for example, the driving disc 1 may be rotated by an external force such as an electric operating system (e.g., a motor), but the present disclosure is not limited thereto.

The main contact comprises a driving contact and a main static contact, wherein the driving contact is linked with the driving disk 1, and can be driven to contact and be separated from the main static contact in the rotating process of the driving disk 1. Specifically, when the drive disc 1 is in the closing position, the active contact contacts the main stationary contact (i.e., the main contact is closed), and when the drive disc 1 is in the opening position, the active contact separates the main stationary contact (i.e., the main contact is open). The relevant structure of the main contact is well known to those skilled in the art and will not be described in detail herein.

With continued reference to fig. 1, the pre-charge contact 2 includes a pre-charge moving contact 21 and a pre-charge stationary contact 22. The pre-charge stationary contact 22 is fixed to the housing H. The pre-charge contact 21 is pivotally arranged on the housing H and is rotatable between a first position (as shown in fig. 1) in which the pre-charge contact 21 is separated from the pre-charge stationary contact 22 (i.e. the pre-charge contact is open) and a second position (as shown in fig. 7) in which the pre-charge contact 21 is in contact with the pre-charge stationary contact 22 (i.e. the pre-charge contact is closed).

The opening and closing mechanism further comprises a linkage mechanism 3, and the linkage mechanism 3 is linked with the driving disc 1 and can selectively drive the pre-charging moving contact 21 to rotate. Specifically, the linkage 3 includes a link assembly 32 and a driving member 31 that can selectively drive the link assembly 32. The driving member 31 includes a first end portion pivotally connected to the driving disk 1 and a second end portion slidably connected to the housing H such that the driving member 31 can be coupled to the driving disk 1. The link assembly 32 includes a fixed end portion pivotally connected to the housing H and a connecting end portion pivotally connected to the pre-charging contact 21, so that the link assembly 32 and the pre-charging contact 21 can form a multi-link mechanism. The linkage 32 may further include a driven pin 320, and the driving member 31 may correspondingly include a driving portion (e.g., a hook portion, but the disclosure is not limited thereto), and may selectively drive the driven pin 320, and thus the pre-charging contact 21, to rotate.

In one embodiment, the linkage assembly 32 includes a first linkage 321 and a second linkage 322. The first link 321 includes the fixed end portion and the first connection end portion pivotally connected to the housing. The second link 322 includes the connection end portion pivotally connected to the pre-charging contact and the second connection end portion pivotally connected to the first connection end portion, wherein the pivot point between the second link 322 and the pre-charging contact 21 is different from the pivot point between the pre-charging contact 21 and the housing H, so that the pre-charging contact 21, the first link 321 and the second link 322 can form a four-bar mechanism. In the present embodiment, the first link 321 is pivotally connected to the second link 322 via the driven pin 320, but the disclosure is not limited thereto, as long as the link assembly 32 includes the driven pin 320, and the driven pin 320 can be driven by the driving member 31 to drive the pre-charging contact 21 to contact and separate from the pre-charging fixed contact 22.

The opening and closing mechanism of the present disclosure may further include a contact elastic member (not shown) having one end pivotally connected to the housing H and the other end pivotally connected to the pre-charging contact 21. It should be noted that, when the pivot points at the two ends of the contact elastic member and the pivot point of the pre-charging contact 21 pivoted to the housing H are located in the same straight line, the position of the pre-charging contact 21 is referred to as a dead point position. The contact spring provides a biasing force to the pre-charge contact 21 away from the pre-charge stationary contact 22 when the pre-charge contact 21 is between a first position (as shown in fig. 1) and a dead point position, and provides a biasing force to the pre-charge contact 21 toward the pre-charge stationary contact 22 when the pre-charge contact 21 is between the dead point position and a second position (as shown in fig. 7).

Referring to fig. 1 and 2, the opening and closing mechanism further includes a trip mechanism 4 pivotally connected to the housing H. During the rotation of the driving disc 1 from the opening position to the closing position (i.e., during the rotation of the driving disc 1 along the first direction D1 from the position of fig. 1), the trip mechanism 4 may stop the driving disc 1 at the ready-to-close position (as shown in fig. 8), at which time the pre-charge contacts are closed (i.e., the pre-charge moving contact 21 contacts the pre-charge fixed contact 22), but the main contacts are opened, and if the driving disc 1 continues to rotate, the main contacts are driven to contact the main fixed contacts, so as to complete the main contact closing. During the rotation of the driving disc 1 from the closing position to the opening position (i.e., during the rotation of the driving disc 1 along the second direction D2 from the position of fig. 14), the trip mechanism 4 may stop the driving disc 1 at the opening preparation position (as shown in fig. 16), at this time, the pre-charging contact is opened (i.e., the pre-charging moving contact 21 is separated from the pre-charging fixed contact 22), but the main contact is closed, and if the driving disc 1 continues to rotate, the main contact will be separated from the main fixed contact, so as to complete the opening of the main contact.

In one embodiment, as shown in fig. 2, the trip mechanism 4 includes a closing trip member 41 and a opening trip member 42. The closing release member 41 is pivotally connected to the housing H via a pivot R, and is capable of rotating between a closing stop position (as shown in fig. 1) and a closing release position (as shown in fig. 12) under the driving of an external force, wherein the closing release member 41 can stop the driving disc 1 at a ready-to-close position when being located at the closing stop position, and the closing release member 41 cannot stop the driving disc 1 from rotating toward the closing position when being located at the closing release position. In an embodiment, the separating and combining mechanism may further include a reset elastic member and an exciting portion (e.g., an electromagnet), which are not shown. The reset elastic member acts on the closing release member 41, and can maintain the closing release member 41 at the closing stop position without receiving other external forces, as shown in fig. 1. The excitation portion is operatively coupled to the closing release member 41, and when the excitation portion is excited, the closing release member 41 is driven from the closing stop position to the closing release position, and when the excitation portion is not excited, the closing release member 41 is returned from the closing release position to the closing stop position by the reset elastic member.

Specifically, referring to fig. 1 and 2, the closing release piece 41 may include a closing stop surface 410 and a closing driving surface 411. The drive disc 1 may comprise a stop 11. During rotation of the driving disc 1 from the opening position in the first direction D1, the closing stop surface 410 of the closing release member 41 may stop the driving disc 1 at the ready-to-close position by abutting the stopper 11. During the rotation of the driving disc 1 from the closing position along the second direction D2, the stopper 11 may abut against the closing driving surface 411 of the closing release member 41, so that the closing release member 41 rotates toward the closing release position, and further the driving disc 1 may continue to rotate, and after the stopper 11 passes through the closing driving surface 411, the closing release member 41 may return to the closing stop position under the action of the reset elastic member.

With continued reference to fig. 2, the trip release member 42 of the trip mechanism 4 is pivoted to the housing H via a pivot R and is rotatable between a trip stop position (shown in fig. 2) and a trip release position (shown in fig. 5). The opening trip member 42 can stop the driving disc 1 at the opening preparation position when in the opening stop position, and the opening trip member 42 can not stop the driving disc 1 from rotating towards the opening position when in the opening release position.

The trip mechanism 4 further includes an elastic member 43, one end of which is pivotally connected to the opening trip member 42, and the other end of which is pivotally connected to the closing trip member 41. When the pivot points of the two ends of the elastic member 43 and the pivot point of the opening release member 42 pivoted to the housing H are located on the same straight line, the position of the opening release member 42 is referred to as a dead point position thereof, and the dead point position is located between the opening stop position and the opening release position. When the opening release member 42 is located at different positions, the elastic member 43 can provide biasing forces in different directions. Specifically, when the opening trip member 42 is located between the opening stop position and the dead point position thereof, the elastic member 43 provides a biasing force to the opening trip member 42 toward the opening stop position; when the opening release member 42 is located between its dead point position and the opening release position, the elastic member 43 provides a biasing force to the opening release member 42 toward the opening release position.

In one embodiment, as shown in fig. 2, the trip release 42 includes a trip stop surface 420 and a trip driving surface 421. During the rotation of the driving disc 1 from the opening position along the first direction D1, the stop member 11 of the driving disc 1 may abut against the opening driving surface 421, so that the opening release member 42 rotates from the opening stop position toward the opening release position, and when the stop member 11 passes through the opening driving surface 421, the opening release member 42 passes through the dead point position, and at this time, the opening release member 42 is kept at the opening release position under the biasing force of the elastic member 43. During rotation of the drive disc 1 from the closing position in the second direction D2, the opening stop surface 420 may abut against the stop 11 of the drive disc 1, such that the drive disc 1 is stopped in the ready-to-open position.

It should be noted that, the closing trip piece 41 and the opening trip piece 42 rotate around the same pivot R. The opening release member 42 can rotate together with the closing release member 41 in the process that the exciting portion drives the closing release member 41 to rotate and the elastic member resets the closing release member 41.

With continued reference to fig. 1, the separating and combining mechanism further includes a mechanism energy storage member 5, one end of which is pivoted to the driving disc 1, and the other end of which is pivoted to the housing H, so that after the driving disc 1 passes through the dead point position, a force for continuing to rotate the driving disc 1 can be provided by the mechanism energy storage member 5. In an embodiment, the mechanism energy storage member 5 may include a support member 51 and a spring 52, wherein the support member 51 passes through the spring 52 and has one end slidably pivoted to the boss H1 of the housing H and the other end pivoted to the driving disc 1. One end of the spring 52 abuts against the flange 510 on the support 51 and the other end abuts against the boss H1 of the housing H to provide a biasing force for continued rotation of the drive disc 1 after it passes the dead point position.

The specific actions of the other components of the opening and closing mechanism during rotation of the drive disk 1 in different directions will be described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, when the driving disc 1 is located at the opening position, the main contact and the pre-charging contact are completely opened, the pre-charging moving contact 21 is located at the first position, the closing release catch 41 is located at the closing stop position, and the opening release catch 42 is located at the opening stop position.

Referring to fig. 3, when the driving disc 1 is driven by the electrical operating system and rotates in the first direction D1 (clockwise in the drawing), the mechanism energy storage member 5 is compressed and stores energy, and meanwhile, the driving member 31 is linked to the driving disc 1 and drives the driven pin 320, so that the pre-charging moving contact 21 moves towards the pre-charging static contact 22, and at the same time, the driving contact also starts to move slowly.

Referring to fig. 4 to 6, the driving disc 1 continues to rotate along the first direction D1, the mechanical energy storage member 5 continues to be compressed and stored, and meanwhile, the driving member 31 continues to drive the pre-charging moving contact 21 to move towards the pre-charging fixed contact 22, wherein the stop member 11 of the driving disc 1 will abut against the opening release member 42 to move from the opening stop position shown in fig. 4 to the opening release position shown in fig. 6, and the closing release member 41 is always kept at the closing stop position during this process. It should be noted that, if the position of the pre-charging contact 21 shown in fig. 5 is exactly the dead point position, the pre-charging contact 21 will be closed by the biasing force of the contact elastic member if the pre-charging contact 21 moves continuously, even if the pre-charging contact 21 contacts the pre-charging fixed contact 22.

Referring to fig. 7, the driving disc 1 continues to rotate along the first direction D1, the pre-charging contact 21 passes through the dead point position, the biasing force of the contact elastic member drives the pre-charging contact 21 to move towards the pre-charging fixed contact 22, and the driving portion (i.e. the hook portion) of the driving member 31 is separated from the driven pin 320, so that the pre-charging contact is not controlled by the driving member 31, and reaches the second position under the biasing force of the contact elastic member, i.e. the pre-charging contact 21 contacts the pre-charging fixed contact 22, and the pre-charging contact is closed.

Referring to fig. 8, the driving disc 1 continues to rotate along the first direction D1, and the pre-charging static contact 21 is not controlled by the driving member 31, and is kept at the second position under the biasing force of the contact elastic member and has the required pre-charging contact pressure, and the driving contact continues to move towards the main static contact under the driving of the driving disc 1 until the stop member 11 of the driving disc 1 is blocked by the closing release member 41, so that the driving disc 1 stops at the ready-to-close position.

After the driving disc 1 reaches the ready-to-close position shown in fig. 8, it may be judged whether the pre-charging is successful (i.e., whether the pre-charging moving contact contacts the pre-charging fixed contact), and if it is determined that the pre-charging is failed (i.e., the pre-charging moving contact does not contact the pre-charging fixed contact), the motor is reversed, and the driving disc 1 is rotated to the open position in a second direction D2 opposite to the first direction D1, as shown in fig. 9 to 11; if it is determined that the priming is successful (i.e., the priming movable contact has contacted the priming stationary contact), an exciting portion (e.g., an electromagnet) may be energized to actuate the closing release member 6 to move to the closing release position, causing the drive disc 1 to continue rotating to the closing position, as shown in fig. 12-14.

In detail, if the driving disc 1 determines that the pre-charging fails after reaching the ready-to-close position shown in fig. 8, the motor is reversed to rotate the driving disc 1 along the second direction D2, the mechanism energy storage member 5 is compressed to store energy, and the driving disc 1 drives the driving member 31 to contact the driven pin 320 as shown in fig. 9.

Referring to fig. 10 and 11, the driving disc 1 continues to rotate along the second direction D2, the driving portion of the driving member 31 abuts against and drives the driven pin 320 to rotate the pre-charging contact 21 towards the first direction, and the driving disc 1 is not blocked and can rotate to the opening position to enable the pre-charging contact 21 to reach the first position, as shown in fig. 11, because the opening release member 42 is kept at the opening release position under the biasing force of the elastic member 43, i.e. the pre-charging contact is fully opened, and the main contact is also fully opened.

If the driving disc 1 determines that the pre-charging is successful after reaching the ready-to-close position shown in fig. 8, as shown in fig. 12 and 13, the exciting section is energized to actuate the closing trip member 41 to rotate to the closing release position, in the process, the elastic member 43 is pivoted to the end of the actuation closing trip member 41 to move together with the end, and when the actuation closing trip member 41 reaches the closing release position, the relative positions of the opening trip member 42 and the closing trip member 41 are restored to fig. 4.

Referring to fig. 14, the driving disc 1 continues to rotate along the first direction D1 to reach a closing position under the action of the mechanism energy storage member 5, so that the active contact contacts the main static contact to complete closing of the main contact, wherein after the driving disc 1 passes through the ready-to-close position, the exciting portion is powered off, and under the action of the reset elastic member, the closing release member 41 and the opening release member 42 can be reset together, that is, the closing release member 41 is reset to a closing stop position, the opening release member 42 is reset to an opening stop position, and there is no relative displacement therebetween.

Referring to fig. 15, after the driving disc 1 reaches the closing position, the driving disc 1 rotates along the second direction D2 under the driving of the motor, so that the mechanism energy storage member 5 is compressed and stored, and when the driving disc 1 reaches the dead point position, the driving member 31 contacts the driven pin 320, and during this process, the main contact and the pre-charge contact remain closed. When the stop member 11 of the driving disc 1 abuts against the driving surface 411 of the closing release member 41, the closing release member 41 can be rotated toward the closing release position, and after the stop member 11 passes through the driving surface 411, the closing release member 41 is restored to the closing stop position under the action of the reset elastic member.

Referring to fig. 16, the driving disc 1 continues to rotate along the second direction D2 under the action of the mechanism energy storage element 5, and the driving element 31 is driven by the driving disc 1 to abut against the driven pin 31, so that the pre-charging moving contact 21 is separated from the pre-charging static contact 22 until the stop element 11 of the driving disc 1 is blocked by the opening release element 42 at the opening preparation position.

It should be noted that, during the process of rotating the driving disc 1 from the closing position to the ready-to-open position along the second direction D2, the main contact remains closed, which may be accomplished by providing the driving disc 1 with a "lost motion" or other operation, which is well known to those skilled in the art, and thus will not be described herein.

If the main contact needs to be opened, as shown in fig. 17, the exciting portion is energized to actuate the closing trip member 41 and the opening trip member 42 to rotate together, wherein the opening trip member 42 rotates to the opening release position, the driving disc 1 continues to rotate in the second direction D2 under the condition of releasing the blocking, the pre-charging contact 21 is driven to continue to be opened by the driving member 31 and the like, and the main contact also starts to be opened.

Referring to fig. 18, after the driving disc 1 passes through the ready-to-break position, the exciting portion is powered off, and the closing and releasing member 41 and the breaking and releasing member 42 are reset together under the action of the reset spring, and as the driving disc 1 moves, the pre-charging moving contact 21 continues to open, i.e. moves towards the first position, and meanwhile the driving contact opens, i.e. separates from the main stationary contact.

Referring to fig. 19, the driving disc 1 continues to move to a position close to the opening position along the second direction D2 under the driving of the mechanism energy storage member 5, and at this time, the driving member 31 is disengaged from the driven pin 320, so that the pre-charging moving contact 21 is not controlled by the driving member 31, and the pre-charging moving contact 21 moves and remains at the first position under the biasing force of the contact elastic member, i.e. the pre-charging contact is fully opened, and meanwhile, the driving contact continues to be opened under the driving of the driving disc 1.

Referring to fig. 20, the driving disc 1 is driven by the mechanism energy storage member 5 to rotate to the opening position, and the driving contact is completely opened, so as to complete opening.

As can be seen, during the rotation of the driving disc 1 from the opening position to the closing position, the pre-charging moving contact 21 rotates from the first position to the second position to complete the closing of the pre-charging contact, and then the driving contact contacts the main stationary contact to complete the closing of the main contact. During the rotation of the driving disc 1 from the closing position to the opening position, the pre-charging moving contact 21 will first rotate from the second position to be separated from the pre-charging fixed contact 22, the driving contact is separated from the main fixed contact, and along with the rotation of the driving disc 1, the pre-charging moving contact 21 and the driving contact will respectively continue to move in the direction away from the pre-charging fixed contact 22 and the main fixed contact, and the pre-charging moving contact 21 first reaches the first position, and the driving contact is completely opened.

The disclosure also provides a fusion switch comprising the above-mentioned switching mechanism.

In summary, the design of the separating and combining mechanism and the fusion switch of the present disclosure through including the link gear, the pre-charging contact and the tripping mechanism can simultaneously satisfy the isolation function of the isolating switch and the pre-charging and main combining functions of the contactor, so that the structure is compact, the integration level of the product is improved, compared with the use of the isolating switch, the contactor and other independent electrical components, the circuit connection between the electrical components is reduced, the installation man-hour is saved, the probability of bad risk is reduced, the occupied space is saved, and the cost is saved.

While the exemplary implementation of the switching mechanism and the fusion switch provided by the present disclosure has been described above with reference to the preferred embodiments, it will be understood by those skilled in the art that various modifications and adaptations may be made to the specific embodiments described above and that various technical features and structures proposed by the present disclosure may be combined without departing from the scope of the present disclosure, which is defined by the appended claims.

Claims (16)

1. A separating and combining mechanism comprising:

a housing;

the driving disc is arranged on the shell in a pivotable way and can rotate between a closing position and a separating position,

the main fixed contact is fixed on the shell; and

the driving contact is linked with the driving disc, and when the driving disc is positioned at a closing position, the driving contact is contacted with the main fixed contact; when the driving disc is positioned at the opening position, the driving contact is separated from the main fixed contact;

the utility model is characterized in that the separating and combining mechanism also comprises:

the pre-charging static contact is fixed on the shell;

the pre-charging moving contact is pivotally arranged on the shell and can rotate between a first position and a second position, wherein the pre-charging moving contact is separated from the pre-charging fixed contact when being in the first position, and the pre-charging moving contact is contacted with the pre-charging fixed contact when being in the second position; and

the linkage mechanism is linked with the driving disk and can selectively drive the pre-charging moving contact to rotate,

wherein during the rotation of the driving disk from the opening position to the closing position, the pre-charging moving contact rotates from the first position to the second position, the driving contact is contacted with the main fixed contact again,

and during the rotation of the driving disc from the closing position to the opening position, the pre-charging moving contact rotates from the second position to be separated from the pre-charging fixed contact, the driving contact is separated from the main fixed contact, the pre-charging moving contact reaches the first position, and the driving contact is completely opened.

2. The opening and closing mechanism according to claim 1, wherein the linkage mechanism includes:

the driving piece comprises a first end part and a second end part, the first end part is pivoted with the driving disc, and the second end part is slidably connected with the shell; and

the connecting rod assembly comprises a fixed end part and a connecting end part, wherein the fixed end part is pivoted with the shell, the connecting end part is pivoted with the pre-charging contact to form a multi-connecting rod mechanism with the pre-charging contact,

the driving piece drives the multi-link mechanism, so that the pre-charging moving contact can move towards a direction approaching to or away from the pre-charging fixed contact.

3. The separating and combining mechanism according to claim 2, wherein,

the link assembly includes a driven pin that,

the driving piece comprises a driving part which can selectively drive the driven pin and further drive the pre-charging movable contact.

4. The opening and closing mechanism according to claim 3, wherein the link assembly comprises:

a first link including the fixed end and a first connection end; and

the second connecting rod comprises a connecting end part and a second connecting end part, and the second connecting end part is pivoted with the first connecting end part.

5. The release mechanism of claim 4, wherein the first connecting end is pivotally connected to the second connecting end via the driven pin.

6. The separating and combining mechanism according to any one of claim 1 to 5, wherein,

the opening and closing mechanism also comprises a contact elastic piece which acts on the pre-charging moving contact,

the pre-charging contact has a dead point position, is positioned between the first position and the second position,

the contact elastic piece provides a biasing force for the pre-charging moving contact to be far away from the pre-charging fixed contact when the pre-charging moving contact is located between the first position and the dead point position, and provides a biasing force for the pre-charging moving contact to be close to the pre-charging fixed contact when the pre-charging moving contact is located between the dead point position and the second position.

7. The release mechanism of claim 1, further comprising a release mechanism pivotally coupled to the housing and configured to: the driving disc can be stopped at a ready-to-close position during the rotation of the driving disc from the opening position to the closing position, and can be stopped at the ready-to-open position during the rotation of the driving disc from the closing position to the opening position,

wherein when the driving disc is in a ready-to-close position, the pre-charging moving contact is contacted with the pre-charging fixed contact, and the driving disc continuously rotates to drive the driving contact to be contacted with the main fixed contact,

when the driving disc is in a ready-to-switch-off position, the pre-charging moving contact is separated from the pre-charging fixed contact, and the driving disc continues to rotate to drive the driving contact to be separated from the main fixed contact.

8. The trip mechanism of claim 7, wherein the trip mechanism includes a closing trip member pivotally coupled to the housing via a pivot and rotatable between a closing release position and a closing stop position,

wherein the closing release fastener can stop the driving disc at the closing preparation position when being positioned at the closing stop position,

and the closing trip piece is positioned at the closing release position and does not block the driving disc from rotating towards the closing position.

9. The opening and closing mechanism as recited in claim 8, further comprising:

an excitation operably coupled to the closing trip piece; and

a reset elastic piece acting on the closing release piece,

the excitation part enables the closing release piece to pivot from the closing stop position to the closing release position when being excited, and the reset elastic piece enables the closing release piece to return from the closing release position to the closing stop position after being not excited.

10. The separating and combining mechanism of claim 9, wherein,

the closing release fastener comprises a closing stop surface and a closing driving surface,

the drive disc comprises a stop member which,

wherein, when the stop piece abuts against the closing stop surface in the process of rotating the driving disc from the opening position to the closing position, the driving disc is stopped at the closing preparation position,

when the stop piece abuts against the closing driving surface in the process that the driving disc rotates from the closing position to the opening position, the closing disengaging piece can move from the closing stop position to the closing releasing position, and then the driving disc can continue to rotate.

11. The trip mechanism of claim 10, further comprising a trip release member pivotally coupled to the housing via the pivot and rotatable between a trip release position and a trip stop position,

wherein the opening release piece can stop the driving disc at the opening preparation position when being positioned at the opening stop position,

the brake release piece is positioned at the brake release position and does not block the driving disc from rotating towards the brake release position.

12. The opening and closing mechanism of claim 11, wherein the excitation portion drives the closing trip member to rotate, and wherein the opening trip member rotates with the closing trip member when the reset elastic member drives the closing trip member to reset.

13. The separating and combining mechanism of claim 12, wherein,

the tripping mechanism also comprises an elastic piece, one end of the elastic piece is pivoted with the opening tripping piece, the other end is pivoted with the closing tripping piece,

the opening release piece is provided with a dead point position and is positioned between the opening stop position and the opening release position,

wherein when the opening release piece is positioned between the opening stop position and the dead point position thereof, the elastic piece provides a biasing force for the opening release piece to move towards the opening stop position,

when the opening release piece is positioned between the dead point position and the opening release position, the elastic piece provides a biasing force for the opening release piece to move towards the opening release position.

14. The separating and combining mechanism of claim 13, wherein,

the opening release piece comprises an opening stop surface and an opening driving surface,

wherein, when the stop piece abuts against the opening driving surface in the process of rotating the driving disc from the opening position to the closing position, the opening release piece is enabled to rotate from the opening stop position to the opening release position,

when the stop piece abuts against the brake separating stop surface in the process of rotating the driving disc from the brake closing position to the brake separating position, the driving disc is blocked at the brake separating position.

15. The opening and closing mechanism of claim 1, further comprising a mechanism energy storage configured to provide a force to continue rotation of the drive disk after the drive disk passes through the dead center position.

16. A fusion switch comprising the switching mechanism of any one of claims 1-12.