CN111403203A - Change-over switch device - Google Patents

Abstract

The present invention relates to a transfer switch device, comprising: the first switch unit drives the first movable contact component by the pivoting motion of a first handle of the first switch unit, so that the first movable contact component can move between a closing state and an opening state; the second switch unit drives the second moving contact component by the pivoting motion of a second handle of the second switch unit, so that the second moving contact can move between a closing state and an opening state; an interlock disposed about a first pin at the moving end of the first handle and a second pin at the moving end of the second handle; an actuating device for actuating the interlock device, the first pin and the second pin such that the change-over switch device has the following operating states: the first moving contact is in a closing state, and the second moving contact is in an opening state; the second moving contact is in a closing state, and the first moving contact is in an opening state; the first moving contact and the second moving contact are in an opening state at the same time.

Description

Transfer switch device

technical field

The present invention relates to a transfer switch device, in particular, to a dual power automatic transfer switch (ATS).

Background technique

Dual power automatic transfer switch (ATS) is a widely used switching appliance. With the increasing attention of power supply continuity, it is used in more and more occasions, and people have put forward more and more demands on its performance. High requirements, which require engineers to continuously develop new ATS products to meet the new needs of the market.

However, the research and development of ATS generally requires a long period, and its products have many similar characteristics to switching appliances. How to reuse these switching appliances as ATS components is a very valuable thing. It can shorten the R&D cycle of ATS products, reduce the R&D cost of ATS products, and at the same time inherit the performance of the reused switching appliances and ensure product quality.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides a transfer switch device based on a double breakpoint switch.

According to one aspect of the present invention, a transfer switch device is provided, which includes: a first switch unit, which includes a first frame, a first handle, a first transmission mechanism and a first movable contact assembly, the first The handle is pivotally mounted on the first frame, the first movable contact assembly is connected to the first handle through a first transmission mechanism, and the pivotal movement of the first handle drives the first handle through the first transmission mechanism a movable contact assembly, so that the first movable contact of the first movable contact assembly can move between the closing state and the opening state, so as to connect and disconnect the first power supply static contact and the load first terminal electrical connection between,

The second switch unit includes a second frame, a second handle, a second transmission mechanism and a second movable contact assembly, the second handle is pivotally mounted on the second frame, and the second movable contact The assembly is connected to the second handle through a second transmission mechanism, and the pivotal movement of the second handle drives the second movable contact assembly through the second transmission mechanism, so that the second movable contact assembly of the second movable contact assembly is The moving contact can move between the closing state and the opening state, so as to connect and disconnect the electrical connection between the static contact of the second power supply and the second terminal of the load,

an interlock arranged around a first pin at the moving end of the first handle and a second pin at the moving end of the second handle such that the first and second pins are close to each other, to drive the first handle and the second handle to move together,

An actuating device for actuating the interlocking device, the first pin and the second pin, so that the transfer switch device has the following working states:

the interlocking device, the first pin and the second pin are in a first position, the first movable contact is in a closed state, and the second movable contact is in an open state;

the interlocking device, the first pin and the second pin are in a second position, the second movable contact is in a closed state, and the first movable contact is in an open state;

The interlocking device, the first pin and the second pin are in an intermediate position, and the first movable contact and the second movable contact are in an open state at the same time.

According to another aspect of the present invention, the actuating device comprises:

a first actuating portion capable of moving in a first direction and moving the interlock, the first pin and the second pin from an intermediate position to a first position or from a second position to an intermediate position; a second actuating portion a moving part which is movable in a second direction and moves the interlocking device, the first pin and the second pin from the intermediate position to the second position or from the first position to the intermediate position.

According to an embodiment of the present invention, the actuating device includes an electromagnet or a motor for driving the first actuating portion and the second actuating portion.

According to a preferred embodiment of the present invention, the actuating device includes a rod, a groove is provided on the rod, the first pin and the second pin are provided in the groove, and the first actuating portion and the first pin are arranged in the groove. The second actuating part is the inner edge of the slot, and when the rod moves in the first direction or the second direction, the inner edge of the slot pushes the first pin and the second pin toward the first direction or the second direction.

According to another preferred embodiment of the present invention, the actuating device includes a first rod and a second rod, the first rod and the second rod are respectively provided with a first groove and a second groove, and the first pin and the second pin are arranged in the first slot and the second slot, the first actuating part and the second actuating part are the inner edge of the first slot and the inner edge of the second slot, respectively, When the first rod moves in the first direction, the inner edge of the first slot pushes the first pin and the second pin in the first direction, and when the second rod moves in the second direction, the second The inner edge of the slot pushes the first and second pins in the second direction.

According to a further embodiment of the present invention, the first return spring is used for biasing the first rod toward the second direction; the second return spring is used for biasing the second rod toward the first direction.

According to another aspect of the present invention, the first transmission mechanism includes a first elastic member, a first main link and a first secondary link, and the first main link is pivotally mounted on the first frame , the moving end of the first main link is connected to the moving end of the first handle via the first elastic member, one end of the first secondary link is pivotally connected to the moving end of the first main link, and the other end is connected to the first moving contact assembly, thus, when the first handle pivots, the first elastic member applies a rotational torque to the first main link, and the first main link drives the first movable contact through the first link. The rotation of the contact assembly enables the first movable contact of the first movable contact assembly to move between the closed state and the open state;

The second transmission mechanism includes a second elastic member, a second main link and a second secondary link, the second main link is pivotally mounted on the second frame, the second main link The moving end of the second connecting rod is connected to the moving end of the second handle via the second elastic member, one end of the second connecting rod is connected to the moving end of the second main connecting rod, and the other end is connected to the second moving contact assembly, thereby , when the second handle pivots, the second elastic member applies a rotational torque to the second main link, and the second main link drives the rotation of the second movable contact assembly via the second link, so that the first The second movable contact of the two movable contact assembly can move between a closed state and an open state.

Preferably, the first frame includes a first opening stopper, and when the first switch unit is opened, the first movable contact assembly rotates toward the opening direction until it abuts against the first opening. a gate stop; the second frame includes a second opening stop, when the second switch unit is opened, the second movable contact assembly rotates toward the opening direction until it abuts against the first switch unit. The second opening stopper.

Therefore, during the movement of the interlocking device, the first pin and the second pin from the intermediate position to the first position, the first handle drives the first movable contact assembly to rotate through the first transmission mechanism, so that it rotates from the divided position The closing state is moved to the closing state, and the second movable contact is kept in the opening state by abutting against the second opening stopper. In addition, during the movement of the interlocking device, the first pin and the second pin from the intermediate position to the second position, the second handle drives the second movable contact assembly to rotate through the second transmission mechanism, so that the second moving contact assembly is rotated from the opening The state is moved to the closed state, and the first movable contact remains in the open state by abutting against the first opening stopper.

According to yet another aspect of the present invention, one end of the first movable contact can be in electrical contact with the first power supply static contact, and the other end of the first movable contact can be in electrical contact with the first terminal of the load; the One end of the second movable contact can be in electrical contact with the second power supply static contact, and the other end of the second movable contact can be in electrical contact with the second terminal of the load.

According to the above disclosure, the present invention provides a three-position transfer switch device by reusing two double-breakpoint switches. The present invention constructs a high-performance dual-power automatic transfer switch by adding a small number of new parts-the interlocking device and the actuating device as described above in the two double-breakpoint switches. The transfer switch device according to the present invention fully inherits the excellent electrical life of the double break switch, and greatly reduces the time and cost in the development process of the transfer switch device.

Description of drawings

Those skilled in the art will have a better understanding of the present disclosure, and the advantages of the present disclosure will be more clearly demonstrated by the following drawings. The drawings described herein are for illustrative purposes only of selected embodiments, not all possible implementations, and are not intended to limit the scope of the present disclosure.

FIG. 1 shows an exemplary embodiment of a transfer switch device according to the invention in plan view;

FIG. 2 partially shows an exemplary embodiment of a transfer switch device according to the invention in a perspective view

3 to 5 are schematic views of the transfer switch device according to the present invention in different states.

Detailed ways

The preferred embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will further understand the features and advantages of the present invention through the accompanying drawings and the corresponding written description. Obviously, the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

In the description of the present invention, the orientations or positional relationships indicated by "up", "down", "left", "right", etc. are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations that are usually placed when the product of the invention is used. Or positional relationship, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

Figures 1 and 2 show an exemplary embodiment of a transfer switch device according to the present invention in plan view and perspective view, respectively. The transfer switch device includes a first switch unit 1 at an upper position and a second switch unit 2 at a lower position. The first switch unit 1 and the second switch unit 0 2 are, for example, double breakpoint switches.

The first switch unit 1 includes a first frame 10 and a first movable contact assembly 16 mounted on the first frame 10 . The first movable contact assembly 16 includes a first movable contact 160 , one end of the first movable contact 160 can be in electrical contact with the first power supply static contact 17 , and the other end can be in electrical contact with the load first terminal 18 . . The first movable contact 160 can move between a closed state and an open state. In the closed state, the first moving contact 160 connects the electrical connection between the first power supply static contact 17 and the load first terminal 18, and in the open state, the first moving contact 160 disconnects the first power supply static contact Electrical connection between the contact 17 and the first terminal 18 of the load.

The second switch unit 2 includes a second frame 20 and a second movable contact assembly 26 mounted on the second frame 20 . The second movable contact assembly 26 includes a second movable contact 260, one end of the second movable contact 260 can be in electrical contact with the second power supply static contact 27, and the other end can be in electrical contact with the load second terminal 28 . The second movable contact 260 can move between a closed state and an open state. In the closed state, the second movable contact 260 connects the electrical connection between the second power supply static contact 27 and the load second terminal 28, and in the open state, the second movable contact 260 disconnects the second power supply static contact Electrical connection between the contacts 27 and the second terminal 28 of the load.

The first power supply static contact 17 is, for example, connected to a backup power supply, and the second power supply static contact 27 is, for example, connected to a common power supply. Both the load first terminal 18 and the load second terminal 28 are connected to the load.

Further, the first switch unit 1 further includes a first handle 11 which is pivotally mounted on the first frame 10 . As shown in FIG. 1 , the first handle 11 is mounted on the first frame 10 at its pivot end 11 - 1 , for example, and can pivotally move around the pivot end 11 - 1 . The first switch unit 1 also includes a first transmission mechanism 12 connecting the first handle 11 to the first movable contact 160 element, so as to convert the pivoting movement of the first handle 11 into the closed state of the first movable contact 160 Rotational movement between and open state.

According to an exemplary embodiment of the present invention, the first transmission mechanism 12 may include a first elastic member 13 (eg, a spring, as best shown in FIG. 2 , which is only schematically shown in a dashed line in FIG. 1 for the sake of clarity) ground), the first main link 14 and the first secondary link 15. The first main link 14 is pivotally mounted on the first frame 10 . The first handle 11 is mounted to the first frame 10, for example at its pivot end 11-1, and is pivotable about this pivot end 14-1. The moving end 14 - 2 of the first main link 14 is connected to the moving end 11 - 2 of the first handle 11 via the first elastic member 13 . One end of the first link 15 is pivotally connected to the moving end 14 - 2 of the first main link 14 , and the other end is connected to the first movable contact assembly 16 .

Specifically, referring to FIG. 2 , the moving end 11 - 2 of the first handle 11 is provided with a first pin 110 , and the moving end 14 - 2 of the first main link 14 is provided with a third pin 140 . The first spring member is sleeved to the first pin 110 of the first handle 11 at one end, and is sleeved to the third pin 140 of the first handle 11 at the other end, so as to connect the movement of the first handle 11 and the first main link 14 End 14-2.

Therefore, when the first handle 11 is pivoted, the first elastic member 13 applies a rotational torque to the first main link 14 , and the rotation of the first main link 14 drives the first moving contact through the first link 15 . The rotation of the head assembly 16 enables the first movable contact 160 of the first movable contact assembly 16 to move between the closed state and the open state.

Preferably, the first frame 10 includes a first opening stopper 101 (not shown), when the first switch unit 1 is opened, the first movable contact assembly 16 rotates toward the opening direction until abut against the first opening stopper 101 .

Likewise, the second switch unit 2 also includes a second handle 21 pivotally mounted on the second frame 20 . As shown in FIG. 1 , the second handle 21 is mounted on the second frame 20 at its pivot end 21 - 1 , for example, and can pivotally move around the pivot end 21 - 1 . The second switch unit 2 also includes a second transmission mechanism 22 that connects the second handle 21 to the second movable contact 260 element, so as to convert the pivoting movement of the second handle 21 into the closed state of the second movable contact 260 Rotational movement between and open state.

The second transmission mechanism 22 may include a second elastic member 23 (eg, a spring, as best shown in FIG. 2 , only schematically represented by a dotted line in FIG. 1 for clarity), a second main link 24 and the second link 25. The second main link 24 is pivotally mounted on the second frame 20 . The second handle 21 is mounted to the second frame 20, for example at its pivot end 24-1, and is pivotally movable about the pivot end 24-1. The moving end 24 - 2 of the second main link 24 is connected to the moving end 21 - 2 of the second handle 21 via the second elastic member 23 . One end of the second secondary link 25 is pivotally connected to the moving end 24 - 2 of the second main link 24 , and the other end is connected to the second movable contact assembly 26 .

Specifically, referring to FIG. 2 , the moving end 21 - 2 of the second handle 21 is provided with a second pin 210 , and the moving end 24 - 2 of the second main link 24 is provided with a fourth pin 240 . The second elastic member 23 is sleeved to the second pin 210 of the second handle 21 at one end, and is sleeved to the fourth pin 240 of the second handle 21 at the other end, so as to connect the second handle 21 and the second main link 24 Athletic end 24-2.

Thus, when the second handle 21 is pivoted, the second elastic member 23 applies a rotational torque to the second main link 24 , and the second main link 24 drives the second movable contact assembly via the second secondary link 25 The rotation of 26 enables the second movable contact 260 of the second movable contact assembly 26 to move between the closing state and the opening state.

Preferably, the second frame 20 includes a second opening stopper 201 (not shown), and when the second switch unit 2 is opened, the second movable contact assembly 26 rotates toward the opening direction until abut against the second opening stopper 201 .

As shown in FIGS. 1 and 2 , the changeover switch device according to the present invention further includes an interlocking device 3 to move the first handle 11 and the second handle 21 together. According to an exemplary embodiment, the interlocking device 3 is, for example, an oblong ring, which surrounds the first pin 110 at the moving end 11 - 2 of the first handle 11 and the second pin 110 at the moving end 11 - 2 of the first handle 11 . A second pin 210 at the moving end 21-2 of the handle 21 is provided. The first pin 110 and the second pin 210 are always confined inside the interlocking device 3 and close to each other during the movement of the first handle 11 and the second handle 21 . On the one hand, the size of the interlocking device 3 cannot be set too small to ensure that its inner space can provide the freedom of movement of the first pin 110 and the second pin 210 therein, so as to prevent the first handle 11 and the second handle 21 from A mechanism lock occurs during the linkage process. On the other hand, the size of the interlocking device 3 cannot be set too large to ensure that the first handle 11 and the second handle 21 move substantially synchronously.

The transfer switch device according to the invention further comprises actuating means 4 for actuating the interlocking means 3 , the first pin 110 and the second pin 210 .

Referring to FIGS. 1 and 2 , as an example, the actuating device 4 includes a first rod 41 and a second rod 42 disposed between the first switch unit 1 and the second switch unit 2 . The first rod 41 and the second rod 42 are respectively provided with a first groove 43 and a second groove 44 . The first rod 41 extends from left to right and is provided with a first groove 43 at its right end, and the second rod 42 extends from right to left and is provided with a second groove 44 at its left end. It should be understood that the positions of the first groove 43 and the second groove 44 on the first rod 41 and the second rod 42 are not limited to the situation described in the above embodiment, and the first groove 43 and the second groove 44 can also be provided in At other positions on the first rod 41 and the second rod 42, such as an intermediate position.

The first pin 110 of the first handle 11 and the second pin 210 of the second handle 21 are disposed in the first groove 43 and the second groove 44 . The first slot 43 includes a left inner edge 43-1 and a right inner edge 43-2, and the second slot 44 also includes a left inner edge 44-1 and a right inner edge 44-2 as shown in FIG. 2 . When the first lever 41 moves to the left, the right inner edge 43 - 2 of the first slot 43 will engage with the first pin 110 or the second pin 210 and push the interlock 3 , the first pin 110 and the second pin 210 Movement to the left. When the second lever 42 moves to the right, the left inner edge 44-1 of the second slot 44 will engage with the first pin 110 or the second pin 210 and push the interlock 3, the first pin 110 and the second pin 210 Move to the right. In this case, the leftward and rightward movements of the interlocking device 3 , the first pin 110 and the second pin 210 are driven by the movement of the first lever 41 and the second lever 42 , respectively.

According to a variant not shown, the actuating device 4 may comprise only one rod. The rod extends from left to right and is provided with a slot as described above at its right end, or the rod extends from right to left and is provided with a slot as described above at its left end. In this case, the lever can be moved left or right to actuate the interlock 3 , the first pin 110 and the second pin 210 . When the lever is moved to the left, the right inner edge of the slot will engage either the first pin 110 or the second pin 210 and push the interlock 3, the first pin 110 and the second pin 210 to the left. When the lever is moved to the right, the left inner edge of the slot will engage the first pin 110 or the second pin 210 and push the interlock 3, the first pin 110 and the second pin 210 to the right.

According to one embodiment, the movement of the above-mentioned rod may be driven by a drive means such as an electromagnet or a motor. As an example, as shown in FIG. 2, the first rod 41 is driven by a one-way electromagnet 5, and when the coil of the one-way electromagnet 5 is energized, the first rod 41 moves to the left. Likewise, the second rod 42 is driven by another one-way electromagnet 6 (not shown), which moves to the right when the coil of the one-way electromagnet 6 is energized.

In addition, a first return spring 45 and a second return spring 46 may also be provided for the first lever 41 and the second lever 42, respectively, not shown. When the first rod 41 moves to the left from the initial position shown in FIG. 2 , the first return spring 45 biases the first rod 41 to the right, after the coil of the electromagnet 5 is de-energized, the first rod 41 Return to the original position. When the second rod 42 moves to the right from the initial position shown in FIG. 2 , the second return spring 46 biases the second rod 42 to the left, causing the second rod 42 to be de-energized after the coil of the electromagnet 6 is de-energized Return to the original position.

Of course, those skilled in the art can also envisage other forms of actuating devices and driving devices, so as to realize the first pin 110 and the second pin 210 in two directions, as shown in FIG. 1 as leftward and rightward directions exercise.

Under the action of the above-mentioned actuating device 4, the transfer switch device according to the present invention can have the following working states.

The interlocking device 3, the first pin 110 and the second pin 210 are in the first position, the first movable contact 160 is in a closed state, and the second movable contact 260 is in an open state (see FIG. 3 ). );

The interlocking device 3, the first pin 110 and the second pin 210 are in the second position, the second movable contact 260 is in a closed state, and the first movable contact 160 is in an open state (see FIG. 5 ). );

The interlocking device 3 , the first pin 110 and the second pin 210 are in the middle position, and the first movable contact 160 and the second movable contact 260 are in an open state at the same time (see FIG. 4 ).

The operation of the transfer switch device according to the present invention will be described below with reference to FIGS. 3 to 5 .

In FIG. 4 , the interlocking device 3 , the first pin 110 and the second pin 210 are in the middle position, the first movable contact 160 of the first switch unit 1 is in the open state and in its maximum open distance position, The second movable contact 260 of the second switch unit 2 is also in the open state and at its maximum open distance position.

4, when the first lever 41 moves to the left, the right inner edge 43-2 of the first slot 43 engages with the first pin 110 or the second pin 210 and pushes the interlocking device 3, the second The first pin 110 and the second pin 210 move to the left.

On the side of the first switch unit 1 , the first handle 11 starts to rotate clockwise from the position shown in FIG. 4 , and the first elastic member 13 applies a rotational torque to the first main link 14 and rotates it counterclockwise. The rotational movement of the first main link 14 then drives the first movable contact assembly 16 to rotate clockwise toward the closing direction through the first link 15 until the first movable contact 160 reaches the closing position shown in FIG. 3 . At this time, the first movable contact 160 communicates with the electrical connection between the first power supply static contact 17 and the load first terminal 18 .

On the side of the second switch unit 2, the second handle 21 starts to rotate counterclockwise from the position shown in FIG. 4 . Since the second moving contact assembly 26 remains against the second opening stopper 201 , that is, the second opening stopper 201 blocks the counterclockwise rotation of the second moving contact assembly 26 , the second elastic The component 23 is stretched, but will not drive the second main link 24 and the second link 25 to rotate, and the second movable contact 260 is maintained in the open state as shown in FIG. 3 .

Contrary to the process described above, starting from the position shown in FIG. 3 , when the second lever 42 is moved to the right, the left inner edge 44 - 1 of the second slot 44 engages the first pin 110 or the second pin 210 and Push the interlocking device 3 , the first pin 110 and the second pin 210 to move to the right to return to the neutral position shown in FIG. 4 , wherein the first movable contact 160 and the second movable contact 260 are in the same position open state.

4, when the second lever 42 moves to the left, the left inner edge 44-2 of the second slot 44 engages with the first pin 110 or the second pin 210 and pushes the interlock 3, the second The first pin 110 and the second pin 210 move to the left.

On the side of the second switch unit 2 , the second handle 21 rotates clockwise from the position shown in FIG. 4 , and the second elastic member 23 applies a rotational torque to the second main link 24 and rotates it counterclockwise. The rotational movement of the second main link 24 then drives the second movable contact assembly 26 to rotate clockwise toward the closing direction through the second link 25 until the second movable contact 260 reaches the closing position shown in FIG. 5 . At this time, the second movable contact 260 communicates with the electrical connection between the second power supply static contact 27 and the load second terminal 28 .

On the side of the first switch unit 1 , the first handle 11 starts to rotate counterclockwise from the position shown in FIG. 4 . Since the first moving contact assembly 16 remains against the first opening stopper 101 , that is, the first opening stopper 101 blocks the counterclockwise rotation of the first moving contact assembly 16 , the first elastic The component 13 is stretched, but will not drive the first main link 14 and the first link 15 to rotate, and the first movable contact 160 is maintained in the open state as shown in FIG. 5 .

Contrary to the process described above, starting from the position shown in FIG. 5 , when the first lever 41 is moved to the left, the right inner edge 43 - 2 of the first slot 43 engages with the first pin 110 or the second pin 210 and Push the interlocking device 3 , the first pin 110 and the second pin 210 to move to the left so that it returns to the middle position shown in FIG. 4 , wherein the first movable contact 160 and the second movable contact 260 are in the same position open state.

It is worth noting that due to the existence of the interlocking device 3, the first handle 11 and the first pin 110 and the second pin 210 of the second handle 21 are always close to each other during the movement, so the first switch unit 1 and the second switch At most one switch unit in unit 2 can be in the closed state, and there will be no situation where both switch units are in the closed state.

Further features of the invention can be found in the claims, the drawings and the description of the drawings. The features and feature combinations mentioned above in the description and further in the description of the drawings and/or individually shown in the drawings are used not only in the respectively indicated combination but also in other combinations or alone, whereas without departing from the scope of the present invention. Details of the invention which are not explicitly shown and explained in the figures, but which emerge from the explained details and can be produced by individual feature combinations are hereby included and disclosed. Accordingly, details and feature combinations that do not have all the features of the original independent claims should also be regarded as disclosed.

Claims (9)

1. A transfer switch device comprising: A first switch unit (1), comprising a first frame (10), a first handle (11), a first transmission mechanism (12) and a first movable contact assembly (16), the first handle (11) ) is pivotally mounted on the first frame (10), the first movable contact assembly (16) is connected to a first handle (11) through a first transmission mechanism (12), and the first handle (11) The pivoting movement of the motor drives the first movable contact assembly (16) via the first transmission mechanism (12), so that the first movable contact (160) of the first movable contact assembly (16) can moving between the closing state and the opening state, thereby connecting and disconnecting the electrical connection between the first power supply static contact (17) and the load first terminal (18); The second switch unit (2) includes a second frame (20), a second handle (21), a second transmission mechanism (22) and a second movable contact assembly (26), the second handle (21) ) is pivotally mounted on the second frame (20), the second movable contact assembly (26) is connected to a second handle (21) through a second transmission mechanism (22), and the second handle (21) The pivoting movement of the second moving contact assembly (26) drives the second moving contact assembly (26) via the second transmission mechanism (22), so that the second moving contact (260) of the second moving contact assembly (26) can moving between the closing state and the opening state, thereby connecting and disconnecting the electrical connection between the second power supply static contact (27) and the load second terminal (28); An interlocking device (3) surrounding a first pin (110) located at the moving end (11-2) of the first handle (11) and a moving end (21-2) located at the second handle (21) The second pin (210) of the ) is arranged so that the first pin (110) and the second pin (210) are close to each other, so as to drive the first handle (11) and the second handle (21) to move together; An actuating device (4) for actuating the interlocking device (3), the first pin (110) and the second pin (210), so that the transfer switch device has the following working states: The interlocking device (3), the first pin (110) and the second pin (210) are in a first position, the first movable contact (160) is in a closed state, and the second movable contact ( 260) in the open state; The interlocking device (3), the first pin (110) and the second pin (210) are in the second position, the second movable contact (260) is in a closed state, and the first movable contact ( 160) in the open state; The interlocking device (3), the first pin (110) and the second pin (210) are in an intermediate position, and the first movable contact (160) and the second movable contact (260) are in a separate position at the same time. gate status. 2. The transfer switch device according to claim 1, the actuating means (4) comprising: A first actuating portion (43-2) capable of moving in a first direction (d1) and moving the interlocking device (3), the first pin (110) and the second pin (210) from an intermediate position to the first position or from the second position to an intermediate position; The second actuating part (44-1), which is movable in the second direction (d2) and moves the interlocking device (3), the first pin (110) and the second pin (210) from the neutral position to the second position or from the first position to an intermediate position. 3. The transfer switch device according to claim 2, wherein the actuating device (4) comprises an electromagnet or a motor for driving the first actuating part (43-2) and the second actuating part (44) -1). 4. The transfer switch device according to claim 2 or 3, the actuating device (4) comprising a rod provided with a slot, the first pin (110) and the second pin (210) being provided In the groove, the first actuating portion (43-2) and the second actuating portion (44-1) are the inner edges of the groove, When the rod moves in the first direction (d1) or the second direction (d2), the inner edge of the slot moves the first pin (110) and the second pin (210) in the first direction (d1) or the second direction Push in direction (d2). 5. The transfer switch device according to claim 2 or 3, the actuating device (4) comprising a first lever (41) and a second lever (42), the first lever (41) and the second lever (42) are respectively provided with a first groove (43) and a second groove (44), and the first pin (110) and the second pin (210) are provided in the first groove (43) and the second groove In (44), the first actuating portion (43-2) and the second actuating portion (44-1) are the inner edge (43-2) of the first groove (43) and the second actuating portion (44-1), respectively. The inner edge (44-1) of the second groove (44), When the first rod (41) moves toward the first direction (d1), the inner edge (43-2) of the first groove (43) moves the first pin (110) and the second pin (210) toward the first pin (110) and the second pin (210). Push in one direction (d1), When the second rod (42) moves toward the second direction (d2), the inner edge (44-1) of the second groove (44) moves the first pin (110) and the second pin (210) toward the first pin (110) and the second pin (210). Push in the second direction (d2). 6. The transfer switch apparatus of claim 5, comprising: a first return spring (45) for biasing the first rod (41) towards the second direction (d2); A second return spring (46) for biasing the second lever (42) towards the first direction (d1). 7. The transfer switch device of any one of claims 1 to 3, wherein, The first transmission mechanism (12) includes a first elastic member (13), a first main link (14) and a first secondary link (15), the first main link (14) being pivotable Installed on the first frame (10), the moving end (14-2) of the first main link (14) is connected to the moving end (11) of the first handle (11) via the first elastic member (13) -2), one end of the first link (15) is pivotally connected to the moving end (14-2) of the first main link (14), and the other end is connected to the first moving contact assembly (16) ; The second transmission mechanism (22) includes a second elastic member (23), a second main link (24) and a second secondary link (25), the second main link (24) being pivotable Installed on the second frame (20), the moving end (24-2) of the second main link (24) is connected to the moving end (21) of the second handle (21) via the second elastic member (23) -2), one end of the second secondary link (25) is connected to the moving end (24-2) of the second main link (24), and the other end is connected to the second movable contact assembly (26). 8. The transfer switch device of any one of claims 1 to 3, wherein, The first frame (10) includes a first opening stopper (101), and when the first switch unit (1) is opened, the first moving contact assembly (16) faces the opening direction Rotate until it abuts against the first opening stopper (101); The second frame (20) includes a second opening stopper (201), and when the second switch unit (2) is opened, the second movable contact assembly (26) faces the opening direction Rotate until it abuts against the second opening stop (201). 9. The transfer switch device of claim 1, wherein One end of the first movable contact (160) can be in electrical contact with the first power supply static contact (17), and the other end of the first movable contact (160) can be in electrical contact with the load first terminal (18) touch; One end of the second movable contact (260) can be in electrical contact with the second power supply static contact (27), and the other end of the second movable contact (260) can be in electrical contact with the load second terminal (28) touch.

Images