Operating mechanism of dual-power automatic change-over switch

Abstract

The invention relates to an operating mechanism of a dual-power automatic change-over switch, which comprises a shell and an automatic change-over assembly, and is characterized in that the automatic change-over assembly comprises a mechanism frame, a motor, a change-over disc, a change-over shaft, a first rotating frame, a first change-over pull plate, two first energy storage springs, a second rotating frame, a second change-over pull plate, two second energy storage springs and a change-over driving part; a driving part is arranged on the side, facing the first rotating frame, of the conversion driving part in a linkage mode, a shifting shaft matched with the driving part is arranged at one end of the first rotating frame, a shifting groove matched with the shifting shaft is formed in the driving part, and one end of the shifting shaft moves along with the first rotating frame and moves in the shifting groove in a reciprocating mode. And linkage matching between the driving piece and the first rotating frame is formed. The circuit breaker has the advantages of simple structure, stable and reliable performance, rapid and reliable conversion and high breaking capacity.

Description

Technical Field

[0001] The invention relates to a dual power automatic transfer switch, in particular to an operating mechanism of the dual power automatic transfer switch. Background Art

[0002] At present, the dual power automatic transfer switch, as the name implies, is to automatically connect to the backup power supply through the dual power switch when the power is suddenly cut off, so that our operation will not be interrupted and can continue to operate. The purpose of the dual power automatic transfer switch is simply to use one line for common use and one line for backup. When the common power suddenly fails or the power is cut off, the dual power switch is automatically put into the backup power supply so that the equipment can still operate normally. Many industries and departments have very high requirements for the reliability of power supply. In order to ensure the continuity of power supply, many important occasions use dual power automatic transfer switches to power electrical appliances. As an essential device for power switching, the requirements for its technical performance are getting higher and higher. The operating mechanism of the existing dual power automatic transfer switch has a slow conversion speed, cannot realize the rapid opening or closing of the dual power automatic transfer switch, has a low breaking capacity, and the structural design of the operating mechanism is relatively complex. The conversion reliability of the two power supplies is low, which easily causes the circuit breaker switch to be incomplete, which seriously affects the working stability of the dual power automatic transfer switch. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an operating mechanism for a dual power automatic transfer switch with a simple structure, stable and reliable performance, rapid and reliable conversion and high breaking capacity.

[0004] To achieve the above-mentioned purpose, the present invention adopts an operating mechanism of a dual power automatic conversion switch, comprising a housing, an automatic conversion component arranged in the housing, the automatic conversion component comprising a mechanism frame arranged in the housing, a motor arranged on the mechanism frame, a conversion disk linked to the output shaft of the motor, a conversion shaft rotatably arranged on the mechanism frame, a first rotating frame rotatably arranged on the conversion shaft, a first conversion pull plate arranged between one end of the first rotating frame and the conversion disk, two first energy storage springs arranged between the two ends of the first rotating frame and the mechanism frame, a second rotating frame linked to the conversion shaft, a second conversion pull plate arranged between one end of the second rotating frame and the mechanism frame, two second energy storage springs arranged between the two ends of the second rotating frame and the mechanism frame, and a conversion drive member linked to the conversion shaft and used to drive the contact system to perform a conversion action, wherein the conversion drive member is linked to a driving member on one side of the first rotating frame, a toggle shaft matched with the driving member is arranged on one end of the first rotating frame, a toggle groove matched with the toggle shaft is arranged on the driving member, one end of the toggle shaft moves with the first rotating frame and reciprocates in the toggle groove, and constitutes a linkage match between the driving member and the first rotating frame.

[0005] The beneficial effect of the above structure is that the automatic conversion component of the operating mechanism adopts a double spring energy storage structure design, so as to ensure that the conversion speed of the operating mechanism is faster, which is conducive to the rapid opening or closing of the dual power automatic conversion switch, and the breaking capacity is higher. During operation, the motor drives the first conversion pull plate and the second conversion pull plate to move respectively through the conversion disk, and the first conversion pull plate and the second conversion pull plate drive the first rotating frame and the second rotating frame to rotate respectively. The first rotating frame compresses the first energy storage spring. When the first energy storage spring releases energy (the first energy storage spring passes the dead point), the first rotating frame quickly performs the conversion action by toggling the conversion drive member through the toggle shaft and the drive member, and the second rotating frame compresses the second energy storage spring. When the second energy storage spring releases energy (the second energy storage spring passes the dead point), the second rotating frame drives the conversion drive member through the conversion shaft to quickly perform the conversion action. Thereby realizing the rapid conversion of the dual power automatic conversion switch. The conversion disc drives the first rotating frame and the second rotating frame to move through the first conversion pull plate and the second conversion pull plate, thereby realizing the reliable conversion of the three working positions of the automatic conversion component, namely, the normal power position, the double-off position, and the standby power position, thereby ensuring the conversion reliability of the operating mechanism. Therefore, the dual power automatic conversion switch has the advantages of simple structure, stable and reliable performance, rapid and reliable conversion, and high breaking capacity.

[0006] In particular, the conversion disc is provided with a manual operation hole, and the housing is provided with a bar-shaped hole at a position corresponding to the manual operation hole. The manual operation hole is provided on the conversion disc, so that the user can operate manually and the operation is more convenient.

[0007] In particular, the conversion disc is provided with a double split mark, a normal power mark, and a standby power mark, and the housing is provided with an indication hole that matches the double split mark, the normal power mark, and the standby power mark. The double split mark, the normal power mark, and the standby power mark are provided on the conversion disc, so that the working state indication of the conversion disc can be realized, which is beneficial to improving the working reliability of the dual power automatic conversion switch.

[0008] In particular, two arc-shaped guide holes are arranged on the mechanism frame at the two ends of the toggle shaft, the two ends of the toggle shaft are inserted into the two arc-shaped guide holes, and the toggle shaft reciprocates and slides in the two arc-shaped guide holes along with the movement of the first rotating shaft. The two arc-shaped guide holes of the mechanism frame guide the toggle shaft, thereby ensuring that the toggle shaft can move reliably, which is beneficial to improving the working reliability of the automatic conversion assembly.

[0009] In particular, the first conversion pull plate includes two first pull plates, a first drive shaft disposed between one ends of the two first pull plates, the second conversion pull plate includes two second pull plates, a second drive shaft disposed between one ends of the two second pull plates, and a guide shaft disposed between the other ends of the second pull plates and connected to one end of the second rotating frame, the other ends of the two first pull plates are connected to the toggle shaft, and two drive holes are disposed on the conversion disc corresponding to the first drive shaft and the second drive shaft, the first drive shaft and the second drive shaft are respectively inserted into the two drive holes, and constitute the linkage cooperation of the first drive shaft, the second drive shaft and the conversion disc. The first conversion pull plate adopts a double first pull plate structure design, and the second conversion pull plate adopts a double second pull plate structure design, so as to ensure the transmission reliability of the first conversion pull plate and the second conversion pull plate, and ensure that the transmission of the first conversion pull plate, the second conversion pull plate and the conversion disc is more reliable.

[0010] In particular, two arc-shaped sliding holes are arranged on the mechanism frame at the two ends of the corresponding guide shaft, the two ends of the guide shaft are inserted into the two arc-shaped sliding holes, and the guide shaft moves with the second rotating frame and reciprocates in the two arc-shaped sliding holes. The two arc-shaped sliding holes of the mechanism frame guide the guide shaft, thereby ensuring that the guide shaft can move reliably, which is conducive to improving the working reliability of the automatic conversion component.

[0011] In particular, the conversion disc is provided with a clamping hole matched with the output shaft of the motor, and the output shaft is clamped in the clamping hole. The conversion disc is clamped on the output shaft of the motor through the clamping hole, thereby facilitating the assembly of the conversion disc and the output shaft, and the assembly is more convenient.

[0012] In particular, the tail of the output shaft has a positioning part, the mechanism frame is provided with a positioning hole matched with the positioning part, the positioning part is inserted into the positioning hole, the positioning part moves with the output shaft and reciprocates in the positioning hole. The positioning part of the tail of the output shaft of the motor is inserted into the positioning hole of the mechanism frame, thereby ensuring that the output shaft can reliably rotate in the mechanism frame, which is conducive to improving the working reliability of the operating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of an embodiment of the present invention.

[0014] Figure 2 It is a three-dimensional diagram of the automatic conversion component according to an embodiment of the present invention.

[0015] Figure 3 Detailed description of the invention The figure is an exploded view of the automatic conversion assembly according to the embodiment of the invention.

[0016] Figure 4 It is a three-dimensional diagram of a conversion disc according to an embodiment of the present invention.

[0017] Figure 5 It is an assembly diagram of the conversion drive member and the drive member according to an embodiment of the present invention.

[0018] Figure 6 It is a three-dimensional diagram of the first conversion pull plate and the second conversion pull plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] like Figures 1 to 6As shown, the embodiment of the present invention is an operating mechanism of a dual power automatic transfer switch, including a housing 10, an automatic transfer assembly 20 arranged in the housing 10, the automatic transfer assembly 20 including a mechanism frame 21 arranged in the housing 10, a motor 22 arranged on the mechanism frame 21, a transfer disc 23 linked to an output shaft 221 of the motor 22, a transfer shaft 24 rotatably arranged on the mechanism frame 21, a first rotating frame 25 rotatably arranged on the transfer shaft 24, a first transfer pull plate 26 arranged between one end of the first rotating frame 25 and the transfer disc 23, two first energy storage springs 27 arranged between the two ends of the first rotating frame 25 and the mechanism frame 21, a second rotating frame 28 linked to the transfer shaft 24, and a first transfer pull plate 26 arranged between the first rotating frame 25 and the transfer disc 23. A second conversion pull plate 29 between one end of the second rotating frame 28 and the mechanism frame 21, two second energy storage springs 30 arranged between the two ends of the second rotating frame 28 and the mechanism frame 21, and a conversion drive member 31 arranged on the conversion shaft 24 and used to drive the contact system to perform the conversion action, the conversion drive member 31 is arranged on the side of the first rotating frame 25, and a driving member 32 is arranged on the conversion drive member 31, and a toggle shaft 251 matched with the driving member 32 is arranged on one end of the first rotating frame 25, and a toggle groove 321 matched with the toggle shaft 251 is arranged on the driving member 32, and one end of the toggle shaft 251 moves with the first rotating frame 25 and reciprocates in the toggle groove 321, and constitutes the linkage cooperation between the driving member 32 and the first rotating frame 25. A manual operation hole 231 is arranged on the conversion disc 23, and a bar hole 101 is arranged at the housing 10 corresponding to the manual operation hole 231. The manual operation hole is arranged on the conversion disc, so that the user can operate manually and the operation is more convenient. The conversion disc 23 is provided with a double split mark 232, a normal power mark 233, and a standby power mark 234, respectively, and the housing 10 is provided with an indication hole 102 that matches the double split mark 232, the normal power mark 233, and the standby power mark 234. The double split mark, the normal power mark, and the standby power mark are provided on the conversion disc, so that the working state indication of the conversion disc can be realized, which is beneficial to improving the working reliability of the dual power automatic conversion switch. The mechanism frame 21 is provided with two arc guide holes 211 at the two ends of the corresponding toggle shaft 251, and the two ends of the toggle shaft 251 are inserted in the two arc guide holes 211, and the toggle shaft 251 moves with the first rotating shaft 25 and reciprocates in the two arc guide holes 211. The two arc guide holes of the mechanism frame play a guiding role for the toggle shaft, so as to ensure that the toggle shaft can move reliably, which is beneficial to improving the working reliability of the automatic conversion component.

[0020] like Figure 2 , 3As shown in Figure 6, the first conversion pull plate 26 includes two first pull plates 261 and a first drive shaft 262 arranged between one ends of the two first pull plates 261. The second conversion pull plate 29 includes two second pull plates 291, a second drive shaft 292 arranged between one ends of the two second pull plates 291, and a guide shaft 281 arranged between the other ends of the second pull plates 291 and connected to one end of the second rotating frame 28. The other ends of the two first pull plates 261 are connected to the toggle shaft 251. Two drive holes 235 are arranged on the conversion disc 23 corresponding to the first drive shaft 262 and the second drive shaft 292. The first drive shaft 262 and the second drive shaft 292 are respectively inserted into the two drive holes 235, and constitute the linkage cooperation between the first drive shaft 262, the second drive shaft 292 and the conversion disc 23. The first conversion pull plate adopts a double first pull plate structure design, and the second conversion pull plate adopts a double second pull plate structure design, so as to ensure the transmission reliability of the first conversion pull plate and the second conversion pull plate, and ensure that the transmission of the first conversion pull plate, the second conversion pull plate and the conversion disc is more reliable. Two arc-shaped sliding holes 212 are provided at the two ends of the corresponding guide shaft 281 on the mechanism frame 21, and the two ends of the guide shaft 281 are inserted into the two arc-shaped sliding holes 212, and the guide shaft 281 moves with the second rotating frame 28 and reciprocates in the two arc-shaped sliding holes 212. The two arc-shaped sliding holes of the mechanism frame guide the guide shaft, so as to ensure that the guide shaft can move reliably, which is conducive to improving the working reliability of the automatic conversion component.

[0021] like Figure 1 , 2 As shown in Figures 3 and 4, the conversion disc 23 is provided with a snap-in hole 236 that matches the output shaft 221 of the motor 22, and the output shaft 221 is snap-fitted into the snap-in hole 236. The conversion disc is snap-fitted onto the output shaft of the motor through the snap-in hole, thereby facilitating the assembly of the conversion disc and the output shaft, and making the assembly more convenient. The tail of the output shaft 221 is provided with a positioning portion 222, and the mechanism frame 21 is provided with a positioning hole 213 that matches the positioning portion 222. The positioning portion 222 is inserted into the positioning hole 213, and the positioning portion 222 moves with the output shaft 221 and reciprocates in the positioning hole 213. The positioning portion at the tail of the output shaft of the motor is inserted into the positioning hole of the mechanism frame, thereby ensuring that the output shaft can reliably rotate in the mechanism frame, which is beneficial to improving the working reliability of the operating mechanism.

[0022] The automatic conversion component of the operating mechanism adopts a double-spring energy storage structure design, which can ensure that the conversion speed of the operating mechanism is faster, which is conducive to the rapid opening or closing of the dual power automatic conversion switch, and the breaking capacity is higher. During operation, the motor drives the first conversion pull plate and the second conversion pull plate to move respectively through the conversion disk, and the first conversion pull plate and the second conversion pull plate drive the first rotating frame and the second rotating frame to rotate respectively. The first rotating frame compresses the first energy storage spring. When the first energy storage spring releases energy (the first energy storage spring passes the dead point), the first rotating frame quickly performs the conversion action by toggling the conversion drive member through the toggle shaft and the drive member, and the second rotating frame compresses the second energy storage spring. When the second energy storage spring releases energy (the second energy storage spring passes the dead point), the second rotating frame drives the conversion drive member through the conversion shaft to quickly perform the conversion action. Thereby, the rapid conversion of the dual power automatic conversion switch is realized. The conversion disc drives the first rotating frame and the second rotating frame to move through the first conversion pull plate and the second conversion pull plate, thereby realizing the reliable conversion of the three working positions of the automatic conversion component, namely, the normal power position, the double-off position, and the standby power position, thereby ensuring the conversion reliability of the operating mechanism. Therefore, the dual power automatic conversion switch has the advantages of simple structure, stable and reliable performance, rapid and reliable conversion, and high breaking capacity.

Claims

1. An operating mechanism for a dual power automatic transfer switch, characterized in that: The invention comprises a shell and an automatic conversion component arranged in the shell, wherein the automatic conversion component comprises a mechanism frame arranged in the shell, a motor arranged on the mechanism frame, a conversion disk linked to the output shaft of the motor, a conversion shaft rotatably arranged on the mechanism frame, a first rotating frame rotatably arranged on the conversion shaft, a first conversion pull plate arranged between one end of the first rotating frame and the conversion disk, two first energy storage springs arranged between two ends of the first rotating frame and the mechanism frame, a second rotating frame linked to the conversion shaft, a second conversion pull plate arranged between one end of the second rotating frame and the mechanism frame, two second energy storage springs arranged between two ends of the second rotating frame and the mechanism frame, and a conversion drive member linked to the conversion shaft and used to drive the contact system to perform a conversion action, wherein the conversion drive member is linked to a driving member on one side of the first rotating frame, a toggle shaft matched with the driving member is arranged on one end of the first rotating frame, a toggle groove matched with the toggle shaft is arranged on the driving member, one end of the toggle shaft moves with the first rotating frame and reciprocates in the toggle groove, and constitutes a linkage match between the driving member and the first rotating frame.

2. The operating mechanism of the dual power automatic transfer switch according to claim 1 is characterized in that: The conversion disc is provided with a manual operation hole, and the shell is provided with a strip hole at a position corresponding to the manual operation hole.

3. The operating mechanism of the dual power automatic transfer switch according to claim 1 or 2, characterized in that: The conversion disc is respectively provided with a double-split mark, a normal power mark and a standby power mark, and the shell is provided with an indication hole matched with the double-split mark, the normal power mark and the standby power mark.

4. The operating mechanism of the dual power automatic transfer switch according to claim 1 or 2, characterized in that: Two arc-shaped guide holes are arranged on the mechanism frame at the two ends of the toggle shaft, the two ends of the toggle shaft are inserted into the two arc-shaped guide holes, and the toggle shaft moves along with the first rotating shaft and slides back and forth in the two arc-shaped guide holes.

5. The operating mechanism of the dual power automatic transfer switch according to claim 1 or 2, characterized in that: The first conversion pull plate includes two first pull plates and a first drive shaft arranged between one ends of the two first pull plates; the second conversion pull plate includes two second pull plates, a second drive shaft arranged between one ends of the two second pull plates, and a guide shaft arranged between the other ends of the second pull plates and connected to one end of the second rotating frame; the other ends of the two first pull plates are connected to the toggle shaft; two drive holes are arranged on the conversion disc corresponding to the first drive shaft and the second drive shaft; the first drive shaft and the second drive shaft are respectively inserted into the two drive holes, and constitute a linkage cooperation between the first drive shaft, the second drive shaft and the conversion disc.

6. The operating mechanism of the dual power automatic transfer switch according to claim 5 is characterized in that: Two arc-shaped sliding holes are arranged on the mechanism frame at the two ends of the corresponding guide shaft, the two ends of the guide shaft are inserted into the two arc-shaped sliding holes, and the guide shaft moves with the second rotating frame and slides back and forth in the two arc-shaped sliding holes.

7. The operating mechanism of the dual power automatic transfer switch according to claim 1 or 2, characterized in that: The conversion disc is provided with a clamping hole matched with the output shaft of the motor, and the output shaft is clamped in the clamping hole.

8. The operating mechanism of the dual power automatic transfer switch according to claim 7 is characterized in that: The tail of the output shaft is provided with a positioning part, and the mechanism frame is provided with a positioning hole matched with the positioning part. The positioning part is inserted into the positioning hole, and the positioning part moves with the output shaft and reciprocates in the positioning hole.

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