A rotating device and a dual-power conversion mechanism using the same

Abstract

A rotating device and a dual-power conversion mechanism using the same belong to the field of power conversion, and include a motor, symmetrically arranged left and right rotating plates, a switch handle fixedly connected to the rotating plates, a circuit breaker located within the clamping jaws of the switch handle. The symmetrically arranged left and right rotating plates are fixed to the upper part of a first rotating disk, and the motor is connected to a second rotating disk. When the motor starts, it drives the second rotating disk to rotate. The second rotating disk then drives the first rotating disk to rotate through an internal rotation control mechanism. The rotating plates on the first rotating disk rotate accordingly. When the switch handle on the rotating plate moves to the corresponding circuit breaker, the opening and closing of the circuit breaker are completed. This structure is used in the operating mechanism of the dual-power conversion mechanism to ensure that when manual operation is performed, the motor does not rotate along with the manual operation. When the motor is working, it can drive the entire switching mechanism to actuate.

Description

Technical Field

[0001] The present invention relates to the field of power conversion, and particularly to a rotating device and a dual-power conversion mechanism using the same. Background Art

[0002] The dual-power conversion mechanism is used to automatically switch the load circuit from one power source to another (standby) power source to ensure the continuous and reliable operation of important loads. The CB-class dual power supply consists of two derivative circuit breaker products (mostly molded case circuit breakers) and a set of operating mechanisms. The operating mechanism acts to close and open the two circuit breakers to complete the conversion of the load circuit. This product has two operating modes, one is manual operation, and the other is motor operation. The former is completed by manually operating the handle by manpower, and the latter is completed by the rotation of the motor itself. In the current market products, when manually operating, the rotation of the rotating device needs to drive the rotation of the motor. Since the passive rotation operation torque of the motor power output shaft is large, it causes laborious manual operation and even damages the motor. Summary of the Invention

[0003] In view of the above existing problems, the object of the present invention is to provide an operating mechanism, which realizes that when manually operating, the motor does not rotate with the entire rotating device, and when the motor rotates, the entire mechanism will rotate with the rotation of the motor. The manual operation and the motor operation share a set of internal control structures, with simple structure, convenient operation and less occupied space.

[0004] The object of the present invention is specifically achieved through the following solutions:

[0005] A rotating device includes a first rotating disk and a second rotating disk. The first rotating disk is provided with a first annular protrusion, and the second rotating disk is provided with a second annular protrusion. The first annular protrusion is movably connected to the second annular protrusion, and a connecting portion is provided in the chamber formed by the two. On both sides of the connecting portion, sliders are symmetrically arranged. The connecting portion and the sliders are respectively movably connected to the first rotating disk. The sliders are connected to the first rotation through positioning shafts. The inner wall of the second annular protrusion has grooves, and both ends of the sliders are in contact with the grooves and the connecting portion respectively. The positive and negative motor is connected to the second rotating disk. When the motor is started, it drives the second rotating disk to rotate. The second rotating disk then drives the first rotating disk to rotate through an internal rotation control mechanism, and the rotating plate follows the rotation. When the switch handle on the rotating plate moves to the corresponding circuit breaker, the opening and closing of the circuit breaker are completed. The motor can rotate forward and backward, thereby realizing the automatic switching of the dual power supply.

[0006] Further, the first rotating disk is provided with a through hole, and the connecting portion is connected to the operating shaft above the first rotating disk through the through hole.

[0007] The slider has a first boss and a third boss, wherein the first boss contacts the connection part, and the third boss is located in the groove of the second annular protrusion. The third boss can slide in the groove, but both ends of the slider are always in contact with the connection part and the groove. Since the connection part is subjected to the same force from the left and right sliders, when the motor is started and drives the second rotating disk to rotate, the first rotating disk can be driven to rotate in the same direction through the connection part, thereby completing the closing and opening operation of the circuit breaker.

[0008] Furthermore, the interior of the first annular protrusion also has a shift shaft and a working groove. One end of the shift shaft is fixedly set on the first rotating disk, and the other end is located inside the working groove and can slide left and right. The third boss can slide in the groove, and its maximum sliding distance is the same as the maximum sliding distance of the shift shaft in the working groove.

[0009] The connecting portion has a protruding structure in the middle of the left and right sliders, and the second boss contacts the protruding structure. Further, the protruding structure is a fan-shaped structure, and the outer arc of the fan-shaped structure is located at one end of the connecting portion away from the first rotating disk.

[0010] The working groove is located on the fan-shaped structure, and the operating shaft controls the rotation of the first rotating disk through the combination of the dial shaft and the working groove. That is, when the operating shaft is manually rotated clockwise, the operating shaft rotates, and the working groove on its fan-shaped structure rotates accordingly, thereby breaking the force balance of the left and right sliders. The third boss of the right slider will be disengaged from the groove of the second annular protrusion due to manual force, so that the working groove can rotate clockwise. When the working groove contacts the dial shaft on the first rotating disk, it will drive the dial shaft to rotate together, thereby driving the first rotating disk to rotate, and then completing the closing and opening operations of the circuit breaker.

[0011] Since the manual operation force is relatively small, the second rotating disk has only a slight friction with the slider, which is insufficient to overcome the resistance of the motor itself, so the motor and the second rotating disk do not rotate.

[0012] Furthermore, the slider has a second boss and a fourth boss, the fourth boss is engaged with the inner wall of the second annular protrusion, the second boss is in contact with the fan-ring structure, and the left and right sliders are connected by an elastic component.

[0013] Two symmetrical pins are arranged on the left and right second bosses, and the elastic component connects the left and right sliders through the pins.

[0014] Furthermore, the elastic component is a spring.

[0015] The first boss, the second boss, the third boss and the third boss are arc-shaped bosses.

[0016] The grooves are at least a pair of symmetrical grooves.

[0017] Further, the rotating plate is connected to the first rotating disk of the rotating device through a dial pin.

[0018] On the other hand, the present invention provides a dual-power conversion mechanism, including an intelligent controller, a circuit breaker, and any one of the above-mentioned rotating devices. The controller completes the closing and opening operations of the circuit breaker by controlling the rotation of the rotating device. Specifically, after the normal power supply has overvoltage, undervoltage, phase loss, etc., the controller will control the rotating device to convert the circuit breaker and switch to the standby power supply. When the normal power supply returns to normal, the controller issues a signal to convert the circuit breaker again and switch to the normal power supply.

[0019] The beneficial effects of the present invention: By sharing a set of internal rotation control mechanisms, both manual operation and motor operation can be realized. The structure is simple, the operation is convenient, the occupied space is small, the manual operation is labor-saving, and the motor will not be damaged during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view schematic diagram of the CB-level dual-power structure;

[0021] Figure 2 It is an assembly schematic diagram of the rotating device and the motor;

[0022] Figure 3 It is a schematic diagram of the structure of the rotating device;

[0023] Figure 4 It is a cross-sectional view of the rotating device in the free state;

[0024] Figure 5 It is a cross-sectional view of the rotating device during manual operation;

[0025] Figure 6 It is a cross-sectional view of the rotating device during motor operation.

[0026] Note: 1 Rotating structure; 2 Rotating plate; 3 Switch handle; 4 Operating shaft; 5 First rotating disk; 51 First annular protrusion; 6 Second rotating disk; 61 Second annular protrusion; 7 Power output shaft; 8 Motor; 9 Dial pin; 10 Slide block; 11 Positioning shaft; 12 Pin; 13 Spring; 14 Working groove; 15 Dial shaft. DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to facilitate the understanding and implementation of the present invention by those of ordinary skill in the art, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The overall structure of the dual-power conversion mechanism is as shown in Figure 1As shown in the figure, the CB-class dual power supply structure mainly includes a rotating device 1, two rotating plates 2 of the same size, a switch handle 3 with a clamping port, and a circuit breaker located at the clamping port of the switch handle 3. The two rotating plates 2 that are symmetric left and right are axially symmetrically arranged on the rotating device 1, and the switch handle 3 is installed at one end of the rotating plate 2. Its operating mode is that the rotating device 1 rotates, thereby driving the rotating plate 2 to rotate, and the rotating plate 2 rotates to drive the rotational movement of the switch handle 3, thereby completing the opening and closing operations of the circuit breaker.

[0029] The main part of the present invention consists of two parts, namely the rotating device 1 and the motor 8. As Figure 2 shown, the motor 8 is connected to the rotating device 1 through the power output shaft 7.

[0030] As Figure 3 shown, the rotating device 1 includes a first rotating disk 5 and a second rotating disk 6. The first rotating disk 5 is provided with a first annular protrusion 51, and the second rotating disk 6 is provided with a second annular protrusion 61. The first annular protrusion 51 is movably connected to the second annular protrusion 61, and a connecting portion is provided in the chamber formed by the two. On both sides of the connecting portion, symmetrically arranged sliders 10 are provided, and the connecting portion and the sliders 10 are respectively movably connected to the first rotating disk 5; the sliders 10 are connected to the first rotating disk 5 through the positioning shafts 11.

[0031] Among them, the inner wall of the second annular protrusion 61 has a pair of symmetric grooves, and both ends of the slider 10 are respectively connected to the grooves and the connecting portion. The first rotating disk 5 is provided with a through hole, and the connecting portion is connected to the operating shaft 4 above the first rotating disk 5 through the through hole.

[0032] The slider 10 has a first boss and a third boss, where the first boss is in contact with the connecting portion, and the third boss is located in the groove of the second annular protrusion 61. The slider 10 also has a second boss and a fourth boss. The second boss is located in the upper part on the same side as the first boss; the fourth boss is located on the same side as the third boss and fits with the inner wall of the second annular protrusion 61.

[0033] The connecting portion has a fan-shaped ring structure in the middle part between the left and right sliders 10. The outer arc of the fan-shaped ring structure is located away from the connecting portion on the first rotating disk 5, and the second boss of the slider 10 is in contact with the fan-shaped ring structure.

[0034] Pins 12 are respectively provided on the second bosses of the sliders 10, and the left and right pins 12 are connected by a spring 13.

[0035] A closed working groove 14 is provided on the fan-shaped ring structure, and two symmetrically positioned positioning shafts 11 and a dial shaft 15 are fixedly provided inside the first annular protrusion 51. The dial shaft 15 is located in the middle of the two positioning shafts 11. The dial shaft 15 is located in the working groove 14 and can slide left and right; the maximum distance that the dial shaft 15 slides in the working groove 14 is the same as the maximum distance that the third boss of the slider 10 can slide in the groove.

[0036] Any of the above-mentioned first boss, second boss, third boss, and fourth boss is an arc-shaped boss.

[0037] On the other hand, the present invention also provides a dual-power conversion mechanism, including a motor 8, symmetrically arranged rotating plates 2 on the left and right, a switch handle 3 fixedly connected to the rotating plate 2, a circuit breaker located in the clamping opening of the switch handle 3, and also including any of the above-mentioned rotating devices. The symmetrically arranged rotating plates 2 driving the left and right are fixed on the upper part of the first rotating disk 5, and the motor 8 is connected to the second rotating disk 6. The rotating plate 2 is connected to the first rotating disk 5 through a dial pin 9.

[0038] After the motor 8 is connected to the second rotating disk 6, when the motor 8 starts, it drives the second rotating disk 6 to rotate. The second rotating disk 6 further drives the first rotating disk 5 to rotate, and the rotating plate 2 rotates accordingly. When the switch handle 3 on the rotating plate 2 moves to the corresponding circuit breaker, the opening and closing of the circuit breaker are completed. The motor 8 can rotate forward and backward, thereby realizing the automatic switching of the dual power supplies.

[0039] As Figure 4 shown, the dial shaft 15 on the first rotating disk 5 is located in the working groove 14 of the fan-shaped ring structure. When the second rotating disk 6 and the first rotating disk 5 are assembled together, the two sliders 10 are symmetrically distributed. At this time, the second boss of the slider 10 is in close contact with the side of the fan-shaped ring structure, and at the same time, the fourth boss of the slider 10 fits with the inner wall of the second annular protrusion 61, the first boss contacts the connecting part, and the third boss is located in the groove on the second annular protrusion 61. The left and right sliders 10 are connected by a spring 13.

[0040] As Figure 5 shown, when the operating shaft 4 rotates clockwise under manual operation, the operating shaft 4 pushes the right slider 10 to rotate, and the third boss on the right slider 10 disengages from the groove of the second annular protrusion 61. Under the action of the spring 13, the fourth boss at the lower left of the left slider 10 fits with the inner arc of the second rotating disk 6. Continuing to rotate the operating shaft 4, the working groove 14 on the fan-shaped ring structure collides with the dial shaft 15 on the first rotating disk 5, and then pushes the first rotating disk 5 to rotate. The dial pin 9 on the first rotating disk 5 drives the rotating plate 2 of the dual-power product to realize the opening and closing operation of the circuit breaker.

[0041] Specifically, during this rotation operation process, due to the small force of manual operation, the second rotating disk 6 only has a slight friction with the slider 10, which is not enough to overcome the resistance of the motor 8 itself. Therefore, the motor 8 and the second rotating disk 6 will not rotate.

[0042] As Figure 6As shown in the figure, when the motor is unlocked and powered on, when the power output shaft 7 of the motor rotates clockwise, the second rotating disk 6 will rotate clockwise together with the motor 8. The arc-shaped third boss on the right slider 10 is embedded in the groove of the second annular protrusion 61. Due to the combined action of the symmetric sliders 10 on the left and right with the working groove 14, the position of the working groove 14 is restored to the middle position. The dial 15 is located in the middle of the working groove 14. The positions of the left and right sliders 10, the connecting part and the working groove 14 are relatively fixed. At this time, there is no additional rotational torque on the left and right sliders 10. Therefore, the left and right arc-shaped third bosses cannot be unlocked and disengaged from the grooves on the second annular protrusion 61 and are fixed relative to the second rotating disk 6. At this time, the second rotating disk 6 continues to rotate, and the first rotating disk 5 rotates clockwise together through the slider 10, so as to realize the rotation of the rotating plate 2 of the dual-power product driven by the dial pin 9 on the first rotating disk 5 to realize the opening and closing operations of the circuit breaker.

[0043] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A rotating device, comprising a first rotating disk (5) and a second rotating disk (6), characterized in that, The first rotating disk (5) is provided with a first annular protrusion (51), and the second rotating disk (6) is provided with a second annular protrusion (61). A chamber is formed between the first annular protrusion (51) and the second annular protrusion (61), and a connecting part is arranged in the chamber. The connecting part is arranged on the first rotating disk (5); Sliders (10) are arranged on both sides of the connecting part. The sliders (10) are arranged on the first rotating disk (5) through positioning shafts (11); The inner wall of the second annular protrusion (61) has grooves. Each slider (10) has a first boss and a third boss, wherein the first boss contacts the connecting part, and the third boss is located in the groove of the second annular protrusion (61); The connecting part has a protruding structure in the middle part between the left and right sliders (10). Each slider (10) also has a second boss and a fourth boss. The second boss is located at the upper part on the same side as the first boss and contacts the protruding structure. The fourth boss is located on the same side as the third boss and fits with the inner wall of the second annular protrusion (61). A pin (12) is arranged on the second boss of the slider (10). The pins (12) on the left and right sliders (10) are connected by a spring (13). A working groove (14) is arranged on the protruding structure. A dial shaft (15) is fixedly arranged inside the first annular protrusion (51), and the dial shaft (15) can slide left and right in the working groove (14).

2. The rotating device according to claim 1, wherein, The first rotating disk (5) is provided with a through hole, and the connecting part is connected to an operating shaft (4) above the first rotating disk (5) through the through hole.

3. The rotating device according to claim 1, characterized in that The protruding structure is a sector ring structure.

4. The rotating device according to claim 1, wherein The maximum distance that the dial shaft (15) slides in the working groove (14) is the same as the maximum distance that the third boss of the slider (10) can slide in the groove.

5. The rotating device according to claim 1, wherein The first boss, the second boss, the third boss, and the fourth boss are arc-shaped bosses.

6. The rotating device according to claim 1, wherein The grooves are at least a pair of symmetrical grooves.

7. A dual-power conversion mechanism, including a motor (8), symmetric left and right rotating plates (2), and is fixedly connected to the rotating plates (2) Closing handle (3), a circuit breaker located within the clamping opening of the switch handle (3), characterized in that, The rotating device according to any one of claims 1-6 is further included. The symmetric left and right rotating plates (2) are fixed on the upper part of the first rotating disk (5), and the motor (8) is connected to the second rotating disk (6).

8. The dual power supply conversion mechanism according to claim 7, characterized in that The rotating plate (2) is connected to the first rotating disk (5) through a peg (9).

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