High-reliability dual-power automatic change-over switch
By introducing buffer components into the dual power automatic conversion switch, the operating force inertia of the buffering conversion shaft is solved, and the automatic conversion mechanism is not in place when performing the conversion action and the contact system is easily damaged, which improves the working reliability and service life of the equipment.
Patent Information
- Application Number
- CN202422131600.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-31
AI Technical Summary
When the existing dual power automatic conversion switch performs the conversion action, due to the inertia of the operating force, the automatic conversion mechanism has the defect of insufficient rotation action, and it is easy to damage the contact system, which has low working reliability and short service life.
A high-reliability dual power automatic conversion switch is adopted, including a buffer assembly, which includes a buffer member arranged on the conversion shaft and a buffer torsion spring arranged between the conversion shaft and the support plate. The buffer member acts with the conversion shaft and resists the buffer torsion spring. The buffer torsion spring plays a buffering role on the buffer member, and the buffer assembly plays a buffering role on the conversion shaft to avoid inadequate rotational action caused by operating force inertia.
Through the design of the buffer assembly, the operating force inertia of the buffer conversion shaft ensures that the automatic conversion mechanism rotates in place, avoids damage to the contact system, and improves working reliability and service life.
Smart Images
Figure CN222980334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a dual-power automatic transfer switch, in particular to a high-reliability 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 existing dual power automatic transfer switch includes a contact system and an automatic conversion mechanism for driving the contact system to perform a conversion action. When the automatic conversion mechanism of the existing dual power automatic transfer switch performs a conversion action, due to the inertia of the operating force, the automatic conversion mechanism has the defect of not rotating in place, and it is easy to damage the contact system, the working reliability is not high, and the service life is short. Summary of the invention
[0003] The utility model aims to overcome the defects of the prior art and provide a high-reliability dual-power automatic transfer switch with simple structure, stable and reliable performance and long service life.
[0004] To achieve the above-mentioned purpose, the utility model adopts a high-reliability dual-power automatic conversion switch, including a contact system and an automatic conversion mechanism for driving the contact system to perform two-way power conversion. The automatic conversion mechanism includes a shell, a mechanism frame arranged in the shell, a motor arranged on the mechanism frame, a motor gear arranged on the rotating shaft of the motor, a manual operating shaft rotatably arranged on the mechanism frame, a driving gear arranged on the manual operating shaft, a transmission gear set between the driving gear and the motor gear, a support plate arranged in the shell, a conversion shaft rotatably arranged on the support plate and linked with the manual operating shaft, and a buffer component arranged on the conversion shaft. The conversion shaft moves with the manual operating shaft and drives the contact system to perform two-way power conversion. The buffer component includes a buffer member linked to the conversion shaft, a buffer torsion spring arranged between the conversion shaft and the support plate and matched with the buffer member, and the buffer member moves with the conversion shaft and contacts the buffer torsion spring.
[0005] The beneficial effects of the above structure are as follows: The buffer assembly buffers the conversion shaft, can buffer the operating force inertia of the conversion shaft, can ensure that the rotation action of the automatic conversion mechanism is in place, avoid damaging the contact system, has higher working reliability and longer service life. When the automatic conversion mechanism performs the conversion action, the buffer member moves with the conversion shaft, and the buffer member abuts against the buffer torsion spring, so as to achieve the purpose of buffering the operating force of the conversion shaft. Therefore, the dual-power automatic transfer switch has the advantages of simple structure, stable and reliable performance, long service life, and high reliability.
[0006] Particularly, two guiding holes are arranged on the support plate corresponding to both ends of the buffer torsion spring. Both ends of the buffer torsion spring have two buffer arms that cooperate with the buffer member. The tails of the two buffer arms are respectively inserted into the two guiding holes. The buffer arms buffer the buffer member, and the buffer arms are clamped in the guiding holes of the support plate, so as to facilitate the assembly of the buffer torsion spring with the conversion shaft and the support plate, and the assembly is more convenient.
[0007] Particularly, a jack for cooperating with the manual operating shaft is arranged at one end of the conversion shaft. One end of the manual operating shaft is inserted into the jack, and a pin for connecting with the manual operating shaft is arranged on the conversion shaft. The conversion shaft and the manual operating shaft are assembled in a clamping and cooperating manner, and the conversion shaft and the manual operating shaft are inserted through the pin, so as to facilitate the assembly of the conversion shaft and the manual operating shaft, and the assembly efficiency is higher.
[0008] Particularly, an indicating disk exposed outside the housing is linked and arranged at the other end of the manual operating shaft, and an indicating mark is arranged on the indicating disk. The indicating disk can indicate the working state, so as to facilitate the user's operation and is beneficial to improving the working reliability of the dual-power automatic transfer switch.
[0009] Particularly, two microswitches are arranged on the housing corresponding to both sides of the indicating disk. Bolts for cooperating with the two microswitches are arranged on the indicating disk. The bolts move with the indicating disk and respectively trigger the two microswitches to realize the on or off of the microswitches. The two microswitches can monitor the position of the indicating disk, so as to realize the remote monitoring of the working state of the dual-power automatic transfer switch, which is beneficial to improving the working reliability of the dual-power automatic transfer switch. Description of the Drawings
[0010] Figure 1 It is a three-dimensional view of an embodiment of the present invention.
[0011] Figure 2 It is an internal structure diagram of the automatic conversion mechanism of an embodiment of the present invention.
[0012] Figure 3 It is an exploded view of the automatic conversion mechanism of an embodiment of the present invention. Detailed Embodiment
[0013] As shown Figures 1 to 3 in the figure, an embodiment of the utility model is a highly reliable automatic transfer switch for dual power supplies, which includes a contact system 10 and an automatic transfer mechanism 20 for driving the contact system 10 to perform the dual power supply conversion action. The automatic transfer mechanism 20 includes a housing 21, a mechanism frame 22 arranged in the housing 21, a motor 23 arranged on the mechanism frame 22, a motor gear 24 arranged on the rotating shaft of the motor 23, a manual operation shaft 25 rotatably arranged on the mechanism frame 22, a driving gear 26 arranged on the manual operation shaft 25, a transmission gear set 27 arranged between the driving gear 26 and the motor gear 24, a support plate 28 arranged in the housing 10, a conversion shaft 29 rotatably arranged on the support plate 28 and linked with the manual operation shaft 25, and a buffer assembly 30 arranged on the conversion shaft 29. The conversion shaft 29 moves with the manual operation shaft 25 and drives the contact system 10 to perform the dual power supply conversion action. The buffer assembly 30 includes a buffer member 31 linked to the conversion shaft 29 and a buffer torsion spring 32 arranged between the conversion shaft 29 and the support plate 28 and cooperating with the buffer member 31. The buffer member 31 moves with the conversion shaft 29 and abuts against the buffer torsion spring 32. Two guiding holes 281 are arranged on the support plate 28 corresponding to both ends of the buffer torsion spring 32. Both ends of the buffer torsion spring 32 have two buffer arms 321 cooperating with the buffer member 31. The tails of the two buffer arms 321 are respectively inserted into the two guiding holes 281. The buffer arms play a buffering role for the buffer member, and the buffer arms are clamped in the guiding holes of the support plate, so as to facilitate the assembly of the buffer torsion spring with the conversion shaft and the support plate, and the assembly is more convenient. One end of the conversion shaft 29 is provided with a jack 291 cooperating with the manual operation shaft 25. One end of the manual operation shaft 25 is inserted into the jack 291, and a pin 290 connected with the manual operation shaft 25 is arranged on the conversion shaft 29. The conversion shaft and the manual operation shaft are assembled in a clamping cooperation manner, and the conversion shaft and the manual operation shaft are inserted through the pin, so as to facilitate the assembly of the conversion shaft and the manual operation shaft, and the assembly efficiency is higher. An indicating disk 11 exposed outside the housing 21 is linked to the other end of the manual operation shaft 25, and an indicating mark 111 is arranged on the indicating disk 11. The indicating disk can play a role in indicating the working state, so as to facilitate the user's operation and is beneficial to improving the working reliability of the automatic transfer switch for dual power supplies.
[0014] As shown Figure 1As shown in the figure, two microswitches 12 are provided on the housing 10 corresponding to both sides of the indicating disc 11. A bolt 13 that cooperates with the two microswitches 12 is provided on the indicating disc 11. The bolt 13 moves with the indicating disc 11 and triggers the two microswitches 12 respectively, realizing the on or off of the microswitches 12. The two microswitches can monitor the position of the indicating disc, so as to realize the remote monitoring of the working state of the double power supply automatic transfer switch, which is beneficial to improving the working reliability of the double power supply automatic transfer switch.
[0015] The buffer assembly plays a buffering role on the conversion shaft, can buffer the operating force inertia of the conversion shaft, can ensure that the rotation action of the automatic conversion mechanism is in place, avoid damaging the contact system, has higher working reliability and longer service life. When the automatic conversion mechanism performs the conversion action, the buffer member moves with the conversion shaft, and the buffer member abuts against the buffer torsion spring, so as to achieve the purpose of buffering the operating force of the conversion shaft. Therefore, the double power supply automatic transfer switch has the advantages of simple structure, stable and reliable performance, long service life and high reliability.
Claims
1. A high-reliability dual-power automatic transfer switch, comprising a contact system and an automatic transfer mechanism for driving the contact system to perform a two-way power transfer action, characterized in that: The automatic conversion mechanism includes a shell, a mechanism frame arranged in the shell, a motor arranged on the mechanism frame, a motor gear arranged on the rotating shaft of the motor, a manual operating shaft rotatably arranged on the mechanism frame, a driving gear arranged on the manual operating shaft, a transmission gear set arranged between the driving gear and the motor gear, a support plate arranged in the shell, a conversion shaft rotatably arranged on the support plate and linked with the manual operating shaft, and a buffer assembly arranged on the conversion shaft. The conversion shaft moves with the manual operating shaft and drives the contact system to perform a two-way power conversion action. The buffer assembly includes a buffer member linked to the conversion shaft, a buffer torsion spring arranged between the conversion shaft and the support plate and matched with the buffer member, and the buffer member moves with the conversion shaft and contacts the buffer torsion spring.
2. The high-reliability dual-power automatic transfer switch according to claim 1 is characterized in that: Two guide holes are arranged on the support plate corresponding to the two ends of the buffer torsion spring. The two ends of the buffer torsion spring have two buffer arms matched with the buffer member. The tails of the two buffer arms are respectively inserted into the two guide holes.
3. The high-reliability dual-power automatic transfer switch according to claim 1 or 2, characterized in that: One end of the conversion shaft is provided with a socket matched with the manual operating shaft, one end of the manual operating shaft is inserted into the socket, and the conversion shaft is provided with a pin connected with the manual operating shaft.
4. The high-reliability dual-power automatic transfer switch according to claim 1 or 2, characterized in that: The other end of the manual operating shaft is linked to be provided with an indicator disk exposed outside the housing, and an indicator mark is provided on the indicator disk.
5. The high-reliability dual-power automatic transfer switch according to claim 4 is characterized in that: Two micro switches are arranged on the housing at both sides of the corresponding indicator disk. Bolts matching the two micro switches are arranged on the indicator disk. The bolts move with the indicator disk and trigger the two micro switches respectively to realize the connection or disconnection of the micro switches.