TWM643582U - Improvement device for dual-motor automatic switching switch - Google Patents

Abstract

The present invention provides an improvement device for dual-motor automatic switching switches, which addresses the existing limitations such as the requirement for the circuit breakers to be of the same brand, size, and specification on the same panel, concerns about modifying the circuit breaker itself, and the issue of mechanical interlocking device distance or difficulty in achieving interlocking between circuit breakers. This improvement device solves these functional requirements by using an external interlocking device and improving the motor control method and power circuit detection, and by providing electrical and mechanical interlocking between circuit breakers, even over a long distance, to prevent unintentional operation. The device is simple in structure and easy to install, enhancing the safety of electricity use.

Description

Double-motor automatic switching switch improvement device

This invention creates an improved device for a dual-motor automatic transfer switch, which improves the limitations of the conventional dual-motor automatic transfer switch that the circuit breakers must be of the same brand, same size, and same specification on the same base plate, etc., and overcomes the doubts in the prior art about the damage and modification of the circuit breaker body, and is limited by the distance factor of the mechanical interlock device behind the two circuit breakers, or the mechanical interlock between the circuit breakers is difficult to overcome. This creation can solve the above-mentioned various functional requirements. Detect the power status of the power circuit to improve the control method. For the interlock function of electrical and mechanical multiples between circuit breakers and circuit breakers, and can interlock across long distances to prevent misoperation, provide an interlock device with simple structure and easy installation to improve the safety of electricity use.

The interlocking method between the circuit breakers in the automatic transfer switch in the prior art, such as world-renowned brands such as Schneider and Siemens, generally uses a similar steel cable between the circuit breaker and the circuit breaker, and interlocks between the two (the mechanism on the back of the circuit breaker locks the actuating mechanism of the circuit breaker) to achieve an interlocking relationship. Therefore, there are special requirements on specifications, models, and sizes. The utilization is a common problem in the current market.

In many cases of actual power systems, there are many situations in which two circuit breakers must be locked to each other, that is, two circuit breakers are interlocked (Interlock), that is, only one of the two circuit breakers is powered on, and both cannot be powered on at the same time, which will cause a short circuit accident. Most of the above states use automatic transfer switches (ATS) under normal circumstances, but two automatic transfer switches are generally arranged side by side on the same casing, and the circuit breakers must be of the same specification and size. In the actual situation, all the flexible application methods are lost. If the improved device of the dual-motor automatic switching switch can be used, the long-term inconvenience mentioned above can be solved. However, the safety requirements must be met if the electrical and mechanical interlocking functions can be solved.

For the products in the conventional technology, for the products of the interlocking device of two circuit breakers, the bottom of the circuit breaker is generally destroyed and a seesaw-like insulating device is inserted into the interlocking one. The movable closing contact of the circuit breaker is limited by mechanical interlocking, or the two circuit breakers are locked by sheet metal to the relative tripping mechanism or input mechanism, so as to achieve the interlocking function of the two circuit breakers. This method has many disadvantages, which will cause inconvenience in use and functional limitations, and damage the basic structure of the circuit breaker. Furthermore, switches with different numbers of poles or different types of circuit breakers cannot be manufactured, and electrical and mechanical interlocking functions cannot be done at any position and in any space. In particular, it is limited by the size, brand, model, and specification. Make improvements to meet the actual needs of the market and improve the quality of safety.

In the conventional technology, there will be places where circuit breakers must be interlocked between circuit breakers. The interlock requirements for power supply systems with more than two circuits in the power circuit system, such as the interlock between dual power circuits Power Interlocks…. In order to consider the reliability and stability of the power supply quality, the above power circuit system adopts multi-circuit power supply, so there must be an interlocking mechanism between circuit breakers. At present, automatic transfer switches (ATS) are generally used as interlocking control panels in the market. The automatic transfer switches are bulky, expensive, and take a long time to manufacture. Moreover, the circuit breakers of this device must be of the same brand, specification, size, and accessories. As a result, there are quite a lot of restrictions on actual use, and no changes can be made. Therefore, this problem has not been solved, especially when the load changes or the equipment changes the shape and size, the existing equipment cannot be used, and the capacity equipment cannot be changed, the old and new models cannot be matched, and the presence space cannot be matched, which will cause many troubles.

The main purpose of this creation is to provide an interlocking device used between circuit breakers, a mechanical interlocking device that can achieve the function of electrical and mechanical interlocking, especially suitable for long-distance applications, and avoid malfunction or non-operation due to electrical faults. The main problem is to solve the electrical and mechanical interlock between two circuit breakers by detecting the state of the power circuit, and provide a switch interlock device with simple structure and convenient installation. The solution that can be used in all aspects of the above-mentioned various functional requirements uses the detection of the power state of the power circuit to perform an interlock function, and combines the reliable electrical and mechanical aspects to prevent malfunctions and improve the safety performance of electrical equipment.

In order to achieve the above-mentioned purpose, the electrical and mechanical interlocking of the double-motor automatic transfer switch improvement device must be reliable and safe. It must be able to use any specification, can be interlocked arbitrarily, will not cause misoperation, and is not limited by distance. It is best to have mechanical and electrical contacts, and meet the requirements of permanent components. If it can solve the problem that any specification can be used, the product can be standardized and standardized. For the first Problems that cannot be overcome by the previous technology, and inconvenience in use, such as interlocking between air circuit breakers and molded case circuit breakers, etc., are not limited by the type of equipment. Therefore, there is a product demand for the improved device of the dual-motor automatic switch. By detecting the power state of the power circuit, the circuit breaker and the circuit breaker can perform electrical and mechanical functions to achieve interlocking.

In order to achieve the above-mentioned purpose, the double-motor automatic transfer switch improvement device can improve the interlocking method of conventional circuit breaker panels. For example, use an automatic transfer switch (ATS) to make two interlocking methods for interlocking; or use a sheet metal method or a cable type for interlocking; two of the same brand, specification, and size can be interlocked and the structure of the circuit breaker will be damaged, and three ATS cannot perform the interlocking function; This creation is not limited by the size of the brand name. The circuit breaker panel has a self-protection locking function and can automatically close the circuit breaker. The circuit breaker can be used to detect the power state of the power circuit. The circuit breaker panel and the circuit breaker panel can be interlocked electrically and mechanically. It is not limited by space and can be interlocked across a long distance. The purpose of solving the problem, in addition to novelty and progress, the focus of this creation must also consider market issues. In addition to the functionality of the solution, the market issue is whether it is in an appropriate position or can comply with world regulations such as NEC, IEC, JIS, BS, CCC, CNS...etc.

In order to achieve the above purpose, an improved device for a dual-motor automatic transfer switch is electrically connected to a normal power supply circuit and a backup power supply circuit; the improved device for a dual-motor automatic transfer switch includes: a control power supply unit, an automatic alternate locking control unit, a main circuit breaker, a main circuit breaker locking control unit, an external forced locking trip button switch for the main circuit breaker, an electric motor device for the external linkage operation handle of the main circuit breaker, and a power state detection for the main circuit breaker Actuator, a backup circuit breaker, a backup circuit breaker locking control unit, a backup circuit breaker external forced locking trip button switch, a backup circuit breaker external linkage operation handle electric motor device, a backup circuit breaker power state detection actuator; the control power supply unit can be input by at least one power supply such as the normal power supply circuit or an uninterruptible power supply system or a DC power supply. The automatic alternate locking control unit is provided with a locking alternating relay, which is electrically connected to the common power supply circuit, and the common power supply circuit has power. The normally closed contact of the lock alternate relay is turned on, the normally open contact of the lock alternate relay is connected to the auxiliary circuit breaker closing auxiliary contact of the main circuit breaker and is electrically connected to the external forced locking trip button switch of the spare circuit breaker, the electric motor device of the external linkage operation handle of the spare circuit breaker, and the power state detection actuator of the spare circuit breaker. The circuit breaker's external forced locking trip button switch, the main circuit breaker's external interlocking operation handle electric motor device, and the main circuit breaker's power state detection actuator, so that at least one of the main circuit breaker and the backup circuit breaker in the dual-motor automatic switch improvement device is forced to lock and does not operate; the main circuit breaker is electrically connected to the normal power circuit. The main circuit breaker has a main circuit breaker trip button switch, a main circuit breaker operating handle, and a main circuit breaker. The main circuit breaker is electrically connected with the main circuit breaker's external forced locking trip button switch and the main circuit breaker's external interlocking operation handle electric motor device; the main circuit breaker locking control unit is electrically connected with the control power supply unit. The locking control unit of the main circuit breaker is composed of the parallel connection of the normally closed contact of the locking alternate relay and the closing auxiliary contact of the standby circuit breaker. When the normally closed contact of the locking alternating relay or the closing auxiliary contact of the standby circuit breaker is turned on, it is electrically connected to the external forced locking trip button switch of the main circuit breaker, the electric motor device of the external interlocking operation handle of the main circuit breaker, and the power status detection actuator of the main circuit breaker. The main circuit breaker power state detection actuator is equipped with a main circuit breaker power state detection, a main circuit breaker microprocessor, a main circuit breaker locking actuation circuit, a main circuit breaker closing actuation circuit, and a main circuit breaker opening and closing actuation circuit. The main circuit breaker power supply side and the main circuit breaker load side of the main circuit breaker are electrically connected to detect the power state of the common power supply circuit. The information is judged by the main circuit breaker microprocessor to activate the main circuit breaker locking actuation circuit, the main circuit breaker closing operation circuit, and the main circuit breaker opening and closing actuation circuit. The built-in forced locking trip button switch is electrically connected to the main circuit breaker locking control unit and the main circuit breaker locking actuation circuit. When the main circuit breaker locking control unit or the main circuit breaker locking actuation circuit is activated, the main circuit breaker trip button switch is actuated to lock the main circuit breaker; the main circuit breaker external linkage operation handle electric motor device is electrically connected to the main circuit breaker locking control unit, the main circuit breaker closing actuation circuit, and the main circuit breaker opening and closing Actuating circuit, when the main circuit breaker locking control unit or the main circuit breaker opening and closing actuating circuit is activated, the electric motor device of the external interlocking operation handle of the main circuit breaker is actuated to drive the main circuit breaker operating handle to the on-off position, when only the main circuit breaker is closed and activated When the main circuit breaker is in operation, the main circuit breaker’s external interlocking operation handle electric motor device drives the main circuit breaker’s operating handle to the closed position; the backup circuit breaker is electrically connected to the backup power supply circuit, and the backup circuit breaker has a backup circuit breaker trip button switch, a backup circuit breaker operating handle, and a backup circuit breaker closing auxiliary contact. Electrically connected; the backup circuit breaker locking control unit is electrically connected to the control power supply unit. The backup circuit breaker locking control unit is composed of the blocking alternate relay normally open contact and the main circuit breaker closing auxiliary contact. . The standby circuit breaker power status detection actuator actuates and locks the backup circuit breaker; the backup circuit breaker power status detection actuator is internally equipped with a backup circuit breaker power status detection, a backup circuit breaker microprocessor, a backup circuit breaker locking actuation circuit, a backup circuit breaker closing actuation circuit, a backup circuit breaker opening and closing actuation circuit, the backup circuit breaker power status detection actuator is electrically connected to the backup circuit breaker locking control unit, and the backup circuit breaker external forced locking trip button The switch and the spare circuit breaker are equipped with an external interlocking operation handle electric motor device. The power state detection of the spare circuit breaker is electrically connected to the power supply side of the spare circuit breaker and the load side of the spare circuit breaker to detect the power state of the backup power supply circuit. The information is judged and activated by the microprocessor of the spare circuit breaker. . The electric motor device of the external linkage operation handle of the standby circuit breaker; the external forced locking trip button switch of the standby circuit breaker is electrically connected to the locking control unit of the standby circuit breaker and the locking actuation circuit of the standby circuit breaker. When the locking control unit of the standby circuit breaker or When the standby circuit breaker locking actuation circuit is actuated, the standby circuit breaker tripping button switch is actuated to lock the standby circuit breaker; the standby circuit breaker external linkage operating handle electric motor device is electrically connected to the standby circuit breaker locking control unit, the standby circuit breaker closing actuation circuit, and the standby circuit breaker opening and closing actuation circuit; The device operates to drive the operating handle of the spare circuit breaker to the on-off position. When only the closing action circuit of the spare circuit breaker is activated, the electric motor device of the external interlocking operation handle of the spare circuit breaker is activated to drive the operating handle of the spare circuit breaker to the on-off position. , the standby circuit breaker is forced to lock and does not operate, and the main circuit breaker can normally operate the functions of opening, closing, and tripping according to the power state of the common power circuit. When the common power circuit is out of power, the main circuit breaker is forced to lock and does not operate.

In order to achieve the above-mentioned purpose, an improved device for a dual-motor automatic transfer switch is electrically connected with a normal power circuit and a backup power circuit; the improved device for a dual-motor automatic transfer switch includes: a control power supply unit, an automatic alternate locking control unit, an external command, a main circuit breaker, a main circuit breaker locking control unit, an external forced locking trip button switch for the main circuit breaker, an electric motor device for an external linkage operation handle for the main circuit breaker, a backup circuit breaker, and a backup circuit breaker locking control unit , a spare circuit breaker external forced locking trip button switch, a spare circuit breaker external interlocking operation handle electric motor device; the control power supply unit can be supplied by at least one or more power sources such as the common power supply circuit or an uninterruptible power supply system or a DC power supply. Input, the control power supply unit is equipped with an AC-DC conversion circuit and a step-down circuit, and outputs an appropriate DC current as the working power of the dual-motor automatic switching switch improvement device; the automatic alternate locking control unit is provided with a locking alternate relay, which is electrically connected to the common power circuit, and the common power circuit is powered. The latching alternate relay does not operate, the normally open contact of the latching alternate relay inside the latching alternate relay does not conduct, the normally closed contact of the latching alternate relay conducts, the normally open contact of the latching alternate relay is connected to the main circuit breaker closing auxiliary contact of the main circuit breaker and is electrically connected to the external forced latching trip button switch of the spare circuit breaker, and the electric motor device of the external interlocking operation handle of the spare circuit breaker. The standby circuit breaker of the circuit breaker closes the auxiliary contact and is electrically connected to the main circuit breaker's external forced locking trip button switch and the main circuit breaker's external interlocking operation handle electric motor device, so that at least one of the main circuit breaker and the standby circuit breaker in the dual-motor automatic transfer switch improvement device is forced to lock and does not operate; the external command is provided with an open command and a closing command, and the external command is electrically connected to the external interlocking operation handle electric motor device of the standby circuit breaker; The circuit breaker is electrically connected to the common power supply circuit. The main circuit breaker has a main circuit breaker trip button switch, a main circuit breaker operating handle, and a main circuit breaker closing auxiliary contact. The relay normally closed contact is connected in parallel with the auxiliary circuit breaker closing auxiliary contact. When the latching alternate relay normally closed contact or the auxiliary circuit breaker closing auxiliary contact is turned on, it is actuated, and is electrically connected to the main circuit breaker. The electric motor device of the external interlocking operation handle of the circuit breaker is actuated to lock the main circuit breaker; the external forced locking trip button switch of the main circuit breaker is electrically connected to the main circuit breaker locking control unit. When the unit operates, the electric motor device of the external interlocking operation handle of the main circuit breaker drives the operating handle of the main circuit breaker to the on-off position. The backup circuit breaker has a backup circuit breaker trip button switch, a backup circuit breaker operating handle, and a backup circuit breaker closing auxiliary contact. When the normally open contact of the blocking alternate relay or the closing auxiliary contact of the main circuit breaker is turned on, it is electrically connected to the external forced locking trip button switch of the standby circuit breaker, and the electric motor device of the external linkage operation handle of the standby circuit breaker is actuated to lock the standby circuit breaker; the external forced locking trip button switch of the standby circuit breaker is electrically connected to the locking control unit of the standby circuit breaker. When the unit is activated, the standby circuit breaker trip button switch is activated to lock the standby circuit breaker; the electric motor device of the external linkage operation handle of the standby circuit breaker is electrically connected to the standby circuit breaker locking control unit. When the standby circuit breaker locking control unit is activated, the standby circuit breaker The electric motor device of the external interlocking operating handle of the circuit breaker drives the operating handle of the spare circuit breaker to the on-off position. When the external command and the on-off command are activated, the electric motor device of the external interlocking operating handle of the spare circuit breaker drives the operating handle of the spare circuit breaker to the on-off position. When the power is on, the backup circuit breaker is forced to lock and does not operate. The main circuit breaker can normally operate the functions of opening, closing and tripping according to the power state of the normal power circuit.

100: Double-motor automatic switching switch improvement device

101: Common power circuit

102: Backup power circuit

103: Control power supply unit

104: Automatic alternate locking control unit

105: Locking Alternating Relay

106: Latching alternate relay normally open contact

107: Latching alternate relay normally closed contact

108:Uninterruptible power supply system

109: DC power supply

110: External command

111: start and stop command

112: Close command

200: Main circuit breaker

201: Main circuit breaker trip button switch

202: Main circuit breaker operating handle

203: Main circuit breaker closed auxiliary contact

204: Main circuit breaker power supply side

205: Main circuit breaker load side

210: Main circuit breaker lockout control unit

220: External forced locking trip button switch for main circuit breaker

230: The electric motor device of the external linkage operation handle of the main circuit breaker

240: Main circuit breaker power state detection actuator

241: Main circuit breaker power status detection

242: Main circuit breaker microprocessor

243: Main circuit breaker locking actuation circuit

244: The main circuit breaker closes the action circuit

245: Main circuit breaker start and break actuation circuit

300: backup circuit breaker

301: Backup circuit breaker trip button switch

302: spare circuit breaker operating handle

303: Auxiliary contact for standby circuit breaker closing

304: Backup circuit breaker power supply side

305: Backup circuit breaker load side

310: Standby circuit breaker lockout control unit

320: Spare circuit breaker external forced locking trip button switch

330: Electric motor device with external linkage operation handle for backup circuit breaker

340: Backup circuit breaker power state detection actuator

341: Backup circuit breaker power state detection

342: backup circuit breaker microprocessor

343: Backup circuit breaker locking actuation circuit

344: Standby circuit breaker closed actuation circuit

345: Backup circuit breaker start and break actuation circuit

[Fig. 1] It is a configuration schematic diagram of the first embodiment of a dual-motor automatic switching switch improvement device created by the present invention

[Figure 2] It is a configuration schematic diagram of the second embodiment of a dual-motor automatic switching switch improvement device created by the present invention

The first implementation example of a dual-motor automatic transfer switch improvement device 100 of the present invention is shown in Figure 1, which is electrically connected with a common power supply circuit 101 and a backup power supply circuit 102; the dual-motor automatic transfer switch improvement device 100 includes: a control power supply unit 103, an automatic alternate locking control unit 104, a main circuit breaker 200, a main circuit breaker locking control unit 210, a main circuit breaker external forced locking trip button switch 220, and a main circuit breaker External interlocking operation handle electric motor device 230, a main circuit breaker power state detection actuator 240, a backup breaker Circuit breaker 300, a backup circuit breaker locking control unit 310, a backup circuit breaker external forced locking trip button switch 320, a backup circuit breaker external linkage operation handle electric motor device 330, a backup circuit breaker power state detection actuator 340; The DC conversion circuit and the step-down circuit output an appropriate DC current as the working power of the dual-motor automatic transfer switch improvement device 100; the automatic alternate locking control unit 104 is provided with a locking alternating relay 105, and the locking alternating relay 105 is electrically connected to the normal power circuit 101, and the common power circuit 101 has power. The normally closed contact 107 of the alternate relay is not conducting, the common power supply circuit 101 is out of power, and the latching alternate relay 105 does not act. The normally open contact 106 of the latching alternate relay inside the latching alternate relay 105 is not conducting, and the normally closed contact 107 of the latching alternate relay is conducted. The circuit breaker's external forced locking trip button switch 320, the spare circuit breaker's external interlocking operation handle electric motor device 330, the spare circuit breaker's power state detection actuator 340, the locking alternate relay normally closed contact 107 and the spare circuit breaker closing supplementary contact 303 of the spare circuit breaker 300 are electrically connected to the main circuit breaker's external forced locking trip button switch 220, and the main circuit breaker's external linkage operation The handle electric motor device 230 and the main circuit breaker power state detection actuator 240 reach at least one of the main circuit breaker 200 and the backup circuit breaker 300 in the dual-motor automatic transfer switch improvement device 100. At least one of the main circuit breaker 200 and the backup circuit breaker 300 is forcibly locked and does not operate; the main circuit breaker 200 is electrically connected to the normal power supply circuit 101, and the main circuit breaker 200 has a main circuit breaker trip button switch 201, a main circuit breaker operating handle 202, and a main circuit breaker. Auxiliary contact 203, the main circuit breaker 200 and the main circuit breaker The built-in forced locking trip button switch 220 and the main circuit breaker external interlocking operation handle electric motor device 230 are electrically connected; the main circuit breaker locking control unit 210 is electrically connected to the control power supply unit 103. The auxiliary circuit breaker closing auxiliary contact 303 is activated when it is turned on, and is electrically connected to the main circuit breaker's external forced locking trip button switch 220, the main circuit breaker's external interlocking operation handle electric motor device 230, and the main circuit breaker power state detection actuator 240 to actuate and block the main circuit breaker 200; the main circuit breaker power state detection actuator 240 is internally equipped with a main circuit breaker power state detection 241 and a main circuit breaker microprocessor 242, a main circuit breaker locking actuation circuit 243, a main circuit breaker closing actuation circuit 244, a main circuit breaker opening and closing actuation circuit 245, the main circuit breaker power state detection actuator 240 is electrically connected to the main circuit breaker locking control unit 210, the main circuit breaker external forced locking trip button switch 220, the main circuit breaker external linkage operation handle electric motor device 230, the main circuit breaker power state detection 2 41 Electrically connect the main circuit breaker power supply side 204 and the main circuit breaker load side 205 of the main circuit breaker 200 to detect the power status of the common power circuit 101, and the information is interpreted by the main circuit breaker microprocessor 242 to actuate the main circuit breaker locking operation circuit 243, the main circuit breaker closing operation circuit 244, and the main circuit breaker opening operation circuit 245. 220. The main circuit breaker's external interlocking operation handle electric motor device 230; the main circuit breaker's external forced locking trip button switch 220 is electrically connected to the main circuit breaker locking control unit 210 and the main circuit breaker locking actuation circuit 243. When the main circuit breaker locking control unit 210 or the main circuit breaker locking actuation circuit 243 is actuated, the main circuit breaker tripping button switch 201 actuates to lock the main circuit breaker 200; The electric motor device of the external interlocking operation handle of the main circuit breaker 230 is electrically connected to the main circuit breaker locking control unit 210, the main circuit breaker closing actuation circuit 244, and the main circuit breaker opening and closing actuation circuit 245. When the main circuit breaker locking control unit 210 or the main circuit breaker opening and closing actuation circuit 245 is actuated, the main circuit breaker external interlocking operation handle electric motor device 230 drives the main circuit breaker operating handle 202 to the on-off position. When the closing actuation circuit 244 is actuated, the main circuit breaker external linkage operation handle electric motor device 230 is actuated to drive the main circuit breaker operating handle 202 to the closed position; the backup circuit breaker 300 is electrically connected to the backup power supply circuit 102, and the backup circuit breaker 300 has a backup circuit breaker trip button switch 301, a backup circuit breaker operating handle 302, and a backup circuit breaker closing auxiliary contact 303. The spare circuit breaker external forced locking trip button switch 320 and the spare circuit breaker external interlocking operation handle electric motor device 330 are electrically connected; the standby circuit breaker locking control unit 310 is electrically connected to the control power supply unit 103. 06 or when the main circuit breaker closing auxiliary contact 203 is turned on, it is electrically connected to the external forced locking trip button switch 320 of the standby circuit breaker, the electric motor device 330 of the external interlocking operation handle of the standby circuit breaker, and the power state detection actuator 340 of the standby circuit breaker is actuated to lock the standby circuit breaker 300; circuit breaker microprocessor 342, a backup circuit breaker locking actuation circuit 343, a backup circuit breaker closing actuation circuit 344, a backup circuit breaker opening and closing actuation circuit 345, the backup circuit breaker power state detection actuator 340 is electrically connected to the backup circuit breaker locking control unit 310, the backup circuit breaker external forced locking trip button switch 320, the backup circuit breaker external linkage operation handle electric motor device 330, the backup circuit breaker The power state detection 341 is electrically connected to the backup circuit breaker power of the backup circuit breaker 300 The source side 304 and the backup circuit breaker load side 305 detect the power state of the backup power circuit 102, and the information is interpreted by the backup circuit breaker microprocessor 342 to actuate the backup circuit breaker locking actuation circuit 343, the backup circuit breaker closing actuation circuit 344, and the backup circuit breaker opening and closing actuation circuit 345 is then electrically connected to the backup circuit breaker external forced locking trip button switch 320, the backup circuit breaker external linkage operation handle electric Motor device 330; the spare circuit breaker external forced locking trip button switch 320 is electrically connected to the spare circuit breaker locking control unit 310 and the spare circuit breaker locking actuation circuit 343; The electric motor device 330 is electrically connected to the backup circuit breaker locking control unit 310, the backup circuit breaker closing actuation circuit 344, and the backup circuit breaker opening and closing actuation circuit 345. When the backup circuit breaker locking control unit 310 or the backup circuit breaker opening and closing actuation circuit 345 is actuated, the backup circuit breaker external interlock operation handle electric motor device 330 drives the backup circuit breaker operating handle 302 to the on-off position. When the closing actuation circuit 344 of the standby circuit breaker is actuated, the electric motor device 330 of the external interlocking operation handle of the spare circuit breaker is actuated to drive the operating handle 302 of the spare circuit breaker to the on-off position. When power is on, the backup circuit breaker 300 is forced to lock and does not operate. The main circuit breaker 200 can normally operate the functions of opening, closing and tripping according to the power state of the normal power supply circuit 101.

The second implementation example of a dual-motor automatic transfer switch improvement device 100 of the present invention is shown in Figure 2, which is electrically connected with a common power supply circuit 101 and a backup power supply circuit 102; the dual-motor automatic transfer switch improvement device 100 includes: a control power supply unit 103, an automatic alternate locking control unit 104, an external command 110, a main circuit breaker 200, a main circuit breaker locking control unit 210, and a main circuit breaker external forced locking trip button switch 22 0. An electric motor device 230 with an external interlocking operation handle for the main circuit breaker, a spare circuit breaker 300, a locking control unit 310 for a spare circuit breaker, an external forced locking trip button switch 320 for a spare circuit breaker, an electric motor device 330 for an external interlocking operation handle for a spare circuit breaker; The unit 103 is provided with an AC-DC conversion circuit and a step-down circuit, and outputs an appropriate DC current as the working power of the double-motor automatic switching switch improvement device 100; the automatic alternating locking control unit 104 is provided with a locking alternating relay 105, and the locking alternating relay 105 is electrically connected to the normal power circuit 101, and the common power circuit 101 has power. 6 conduction, the normally closed contact 107 of a blocking alternate relay is not conducting, the common power circuit 101 is out of power, the blocking alternate relay 105 does not act, the internally locked alternate relay normally open contact 106 of the latch alternate relay 105 is not conducting, and the normally closed contact 107 of the latch alternate relay is conducted, the normally open contact 106 of the latch alternate relay is connected to the main circuit breaker closing auxiliary contact 203 of the main circuit breaker 200 Electrically connected to the standby circuit breaker's external forced locking trip button switch 320, the standby circuit breaker's external interlocking operation handle electric motor device 330, the locking alternate relay normally closed contact 107 and the standby circuit breaker closing auxiliary contact 303 of the standby circuit breaker 300 are electrically connected to the main circuit breaker's external forced locking trip button switch 220, and the main circuit breaker's external interlocking operation handle electric motor device 230, reach the double horse At least one of the main circuit breaker 200 and the backup circuit breaker 300 in the automatic transfer switch improvement device 100 is forced to lock and does not work; the external command 110 is provided with an opening command 111 and a closing command 112, and the external command 110 is electrically connected to the external interlocking operation handle electric motor device 330 of the backup circuit breaker; the main circuit breaker 200 is electrically connected to the normal power circuit 101, and the main circuit breaker 200 has a Main circuit breaker trip button switch 201, a main circuit breaker operating handle 202, a main circuit breaker closing auxiliary contact 203, the main circuit breaker 200 is electrically connected with the main circuit breaker external forced locking trip button switch 220, the main circuit breaker external interlocking operation handle electric motor device 230; the main circuit breaker locking control unit 210 is electrically connected with the control power unit 103, the main circuit breaker locking control unit 2 10 is composed of parallel connection of the normally closed contact 107 of the alternate locking relay and the closing auxiliary contact 303 of the backup circuit breaker. When the normally closed contact 107 of the alternate locking relay or the auxiliary closing contact 303 of the backup circuit breaker is turned on, it is actuated and electrically connected to the external forced locking trip button switch 220 of the main circuit breaker, and the electric motor device 230 of the external interlocking operation handle of the main circuit breaker is actuated to block the main circuit breaker 200; The main circuit breaker external forced locking trip button switch 220 is electrically connected to the main circuit breaker locking control unit 210. When the main circuit breaker locking control unit 210 is actuated, the main circuit breaker tripping button switch 201 is actuated to block the main circuit breaker 200; the main circuit breaker external interlocking operation handle electric motor device 230 is electrically connected to the main circuit breaker locking control unit 210. When the main circuit breaker locking control unit 21 When 0 is activated, the electric motor device 230 of the external interlocking operation handle of the main circuit breaker is actuated to drive the operation handle 202 of the main circuit breaker to the on-off position. drive the main circuit breaker operating handle 202 to the closed position; the The backup circuit breaker 300 is electrically connected with the backup power supply circuit 102. The backup circuit breaker 300 has a backup circuit breaker trip button switch 301, a backup circuit breaker operating handle 302, and a backup circuit breaker closing auxiliary contact 303. The circuit breaker locking control unit 310 is electrically connected with the control power supply unit 103. The backup circuit breaker locking control unit 310 is composed of the parallel connection of the blocking alternate relay normally open contact 106 and the main circuit breaker closing auxiliary contact 203. When the blocking alternating relay normally open contact 106 or the main circuit breaker closing auxiliary contact 203 is turned on, it is actuated and electrically connected to the backup circuit breaker. The external forced locking trip button switch 320 The electric motor device 330 of the external linkage operation handle of the standby circuit breaker is actuated to lock the standby circuit breaker 300; the external forced locking trip button switch 320 of the standby circuit breaker is electrically connected to the locking control unit 310 of the standby circuit breaker. The device 330 is electrically connected to the standby circuit breaker locking control unit 310. When the standby circuit breaker locking control unit 310 is actuated, the spare circuit breaker external interlocking operation handle electric motor device 330 drives the standby circuit breaker operating handle 302 to the on-off position. 2 to the on-off position, when the closing command 112 is activated, the electric motor device 330 of the external interlocking operation handle of the standby circuit breaker is actuated to drive the operation handle 302 of the standby circuit breaker to the closed position; wherein the double-motor automatic switching switch improvement device 100, when the normal power supply circuit 101 is powered, the backup circuit breaker 300 is forced to lock and does not operate, and the main circuit breaker 200 can normally operate the functions of opening and closing, closing and tripping according to the power state of the normal power supply circuit 101, When the normal power circuit 101 is out of power, the main circuit breaker 200 forces Blocking does not work, and the backup circuit breaker 300 can normally operate the functions of opening, closing, and tripping according to the power state of the backup power supply circuit 102, so as to achieve the function of an automatic switching switch.

To sum up, this invention creates an improved device for dual-motor automatic switching switches, which further improves the stability and safety of the circuit breaker panel in the power supply system, and has deep industrial applicability. In addition, after checking the relevant products on the market and the approved patent announcements, there is no one with the same technical characteristics as this creation, which also meets the statutory patent application requirements of novelty and advancement. To file a patent application in accordance with the law, I urge your review committee to grant the patent for this case as soon as possible to ensure the rights and interests of the applicant. However, what is disclosed in this case is only a preferred embodiment of this creation, which cannot limit the scope of rights of this creation. All equivalent changes or modifications made in accordance with the spirit of this creation are still covered by the scope of patent application for this creation.

100: Double-motor automatic switching switch improvement device

101: Common power circuit

102: Backup power circuit

103: Control power supply unit

104: Automatic alternate locking control unit

105: Locking Alternating Relay

106: Latching alternate relay normally open contact

107: Latching alternate relay normally closed contact

108:Uninterruptible power supply system

109: DC power supply

200: Main circuit breaker

201: Main circuit breaker trip button switch

202: Main circuit breaker operating handle

203: Main circuit breaker closed auxiliary contact

204: Main circuit breaker power supply side

205: Main circuit breaker load side

210: Main circuit breaker lockout control unit

220: External forced locking trip button switch for main circuit breaker

230: The electric motor device of the external linkage operation handle of the main circuit breaker

240: Main circuit breaker power state detection actuator

241: Main circuit breaker power status detection

242: Main circuit breaker microprocessor

243: Main circuit breaker locking actuation circuit

244: The main circuit breaker closes the action circuit

245: Main circuit breaker start and break actuation circuit

300: backup circuit breaker

301: Backup circuit breaker trip button switch

302: spare circuit breaker operating handle

303: Auxiliary contact for standby circuit breaker closing

304: Backup circuit breaker power supply side

305: Backup circuit breaker load side

310: Standby circuit breaker lockout control unit

320: Spare circuit breaker external forced locking trip button switch

330: Electric motor device with external linkage operation handle for backup circuit breaker

340: Backup circuit breaker power state detection actuator

341: Backup circuit breaker power state detection

342: backup circuit breaker microprocessor

343: Backup circuit breaker locking actuation circuit

344: Standby circuit breaker closed actuation circuit

345: Backup circuit breaker start and break actuation circuit

Claims (2)

An improved device for a dual-motor automatic transfer switch, which is electrically connected to a common power supply circuit and a backup power supply circuit; the improved device for a dual-motor automatic transfer switch includes: a control power supply unit, an automatic alternate locking control unit, a main circuit breaker, a main circuit breaker locking control unit, an external forced locking trip button switch for the main circuit breaker, an electric motor device for external linkage operation handles for the main circuit breaker, a power state detection actuator for the main circuit breaker, a backup circuit breaker, and a backup circuit breaker closure Lock control unit, a spare circuit breaker external forced locking trip button switch, a spare circuit breaker external linkage operation handle electric motor device, a spare circuit breaker power state detection actuator; The control power supply unit can be input by at least one power supply such as the common power supply circuit or an uninterruptible power supply system or a DC power supply. The control power supply unit is internally equipped with an AC-DC conversion circuit and a step-down circuit, and outputs an appropriate DC current as the working power supply of the dual-motor automatic switching switch improvement device; The automatic alternate locking control unit is provided with a blocking alternate relay, which is electrically connected to the common power circuit, and the common power circuit is powered. The normally closed contact of the relay is turned on, the normally open contact of the latching alternate relay is connected to the main circuit breaker closing supplementary contact of the main circuit breaker and is electrically connected to the external forced locking trip button switch of the spare circuit breaker, the electric motor device of the external linkage operation handle of the spare circuit breaker, and the power state detection actuator of the spare circuit breaker. The external forced locking trip button switch of the circuit breaker, the electric motor device of the external interlocking operation handle of the main circuit breaker, the power state detection actuator of the main circuit breaker, so that at least one of the main circuit breaker and the backup circuit breaker in the improved device of the double motor automatic switch is forced to lock and not operate; The main circuit breaker is electrically connected with the common power supply circuit. The main circuit breaker has a main circuit breaker trip button switch, a main circuit breaker operating handle, and a main circuit breaker closing auxiliary contact. The main circuit breaker locking control unit is electrically connected with the control power supply unit. The main circuit breaker locking control unit is composed of the locking alternate relay normally closed contact and the standby circuit breaker closing auxiliary contact. Circuit breaker power status detection actuator actuates and locks the main circuit breaker; The main circuit breaker power state detection actuator is equipped with a main circuit breaker power state detection, a main circuit breaker microprocessor, a main circuit breaker locking actuation circuit, a main circuit breaker closing actuation circuit, and a main circuit breaker opening and closing actuation circuit. Circuit breaker power state detection is electrically connected to the main circuit breaker power supply side of the main circuit breaker, and the main circuit breaker load side detects the power state of the common power supply circuit. The circuit breaker opening and closing actuating circuit is electrically connected to the main circuit breaker's external forced locking trip button switch and the main circuit breaker's external interlocking operation handle electric motor device; The main circuit breaker's external forced locking trip button switch is electrically connected to the main circuit breaker locking control unit and the main circuit breaker locking actuation circuit. When the main circuit breaker locking control unit or the main circuit breaker locking actuation circuit is actuated, the main circuit breaker trip button switch actuates and blocks the main circuit breaker; The main circuit breaker external interlocking operation handle electric motor device is electrically connected to the main circuit breaker locking control unit, the main circuit breaker closing actuation circuit, and the main circuit breaker opening and closing actuation circuit. The electric motor device of the external linkage operating handle of the circuit breaker drives the operating handle of the main circuit breaker to the closed position; The backup circuit breaker is electrically connected with the backup power supply circuit. The backup circuit breaker has a backup circuit breaker trip button switch, a backup circuit breaker operating handle, and a backup circuit breaker closing auxiliary contact. The backup circuit breaker locking control unit is electrically connected with the control power supply unit. The backup circuit breaker locking control unit is composed of the parallel connection of the normally open contact of the locking alternate relay and the closing auxiliary contact of the main circuit breaker. Actuator for circuit power state detection Automatically lock the standby circuit breaker; The backup circuit breaker power state detection actuator is equipped with a backup circuit breaker power status detection, a backup circuit breaker microprocessor, a backup circuit breaker locking actuation circuit, a backup circuit breaker closing actuation circuit, a backup circuit breaker opening and closing actuation circuit, the backup circuit breaker power status detection actuator is electrically connected to the backup circuit breaker locking control unit, the backup circuit breaker external forced locking trip button switch, the backup circuit breaker external linkage operation handle electric motor device, the backup circuit breaker The circuit breaker power state detection is electrically connected to the backup circuit breaker power supply side of the backup circuit breaker, and the backup circuit breaker load side detects the power status of the backup power circuit, and the information is judged and actuated by the backup circuit breaker microprocessor to lock the actuation circuit of the backup circuit breaker and close the actuation circuit of the backup circuit breaker. The backup circuit breaker external forced locking trip button switch is electrically connected to the backup circuit breaker locking control unit and the backup circuit breaker locking actuation circuit, when the backup circuit breaker locking control unit or the backup circuit breaker locking actuation circuit is actuated, the backup circuit breaker trip button switch actuates to lock the backup circuit breaker; The electric motor device of the external interlocking operation handle of the standby circuit breaker is electrically connected to the locking control unit of the standby circuit breaker, the closing actuation circuit of the standby circuit breaker, and the opening and closing actuation circuit of the standby circuit breaker. The electric motor device of the external interlocking operation handle of the circuit breaker drives the operating handle of the spare circuit breaker to the on-off position. The operating handle electric motor device is actuated to drive the standby circuit breaker operating handle to the closed position; Among them, the double-motor automatic switching switch improvement device, when the normal power supply circuit has power, the backup circuit breaker is forced to lock and does not operate, and the main circuit breaker can normally operate the function of opening, closing and tripping according to the power state of the normal power supply circuit. An improved device for a double-motor automatic transfer switch, which is electrically connected to a common power supply circuit and a backup power supply circuit; the improved device for a dual-motor automatic transfer switch includes: a control power supply unit, an automatic alternate locking control unit, an external command, a main circuit breaker, a main circuit breaker locking control unit, an external forced locking trip button switch for the main circuit breaker, an electric motor device with an external linkage operation handle for the main circuit breaker, a backup circuit breaker, a backup circuit breaker locking control unit, and a backup circuit breaker An external forced locking trip button switch, a spare circuit breaker external linkage operation handle electric motor device; The control power supply unit can be input by at least one power supply such as the common power supply circuit or an uninterruptible power supply system or a DC power supply. The control power supply unit is internally equipped with an AC-DC conversion circuit and a step-down circuit, and outputs an appropriate DC current as the working power supply of the dual-motor automatic switching switch improvement device; The automatic alternate locking control unit is provided with a blocking alternate relay, which is electrically connected to the common power circuit, and the common power circuit is powered. The normally closed contact of the relay is turned on, and the latch alternately relays The normally open contact is connected to the main circuit breaker closing auxiliary contact of the main circuit breaker and is electrically connected to the external forced locking trip button switch of the standby circuit breaker and the electric motor device of the external linkage operation handle of the standby circuit breaker. The motor device is capable of making at least one of the main circuit breaker and the backup circuit breaker in the improved device of the dual-motor automatic transfer switch compulsively locked and inoperative; The external command is provided with an opening command and a closing command, and the external command is electrically connected to the electric motor device of the external interlocking operation handle of the backup circuit breaker; The main circuit breaker is electrically connected with the common power supply circuit. The main circuit breaker has a main circuit breaker trip button switch, a main circuit breaker operating handle, and a main circuit breaker closing auxiliary contact. The main circuit breaker locking control unit is electrically connected to the control power supply unit. The main circuit breaker locking control unit is composed of the locking alternate relay normally closed contact and the backup circuit breaker closing auxiliary contact. the main circuit breaker; The main circuit breaker external forced locking trip button switch is electrically connected to the main circuit breaker locking control unit, and when the main circuit breaker locking control unit is actuated, the main circuit breaker tripping button switch is actuated to lock the main circuit breaker; The main circuit breaker's external interlocking operation handle electric motor device is electrically connected to the main circuit breaker to close Lock control unit, when the main circuit breaker locking control unit is actuated, the main circuit breaker external interlocking operation handle electric motor device is actuated to drive the main circuit breaker operating handle to the on-off position; closed position; The backup circuit breaker is electrically connected with the backup power supply circuit. The backup circuit breaker has a backup circuit breaker trip button switch, a backup circuit breaker operating handle, and a backup circuit breaker closing auxiliary contact. The backup circuit breaker locking control unit is electrically connected with the control power supply unit. The backup circuit breaker locking control unit is composed of the blocking alternate relay normally open contact and the main circuit breaker closing auxiliary contact. the standby circuit breaker; The external forced locking trip button switch of the backup circuit breaker is electrically connected to the backup circuit breaker locking control unit, and when the backup circuit breaker locking control unit is actuated, the backup circuit breaker trip button switch is actuated to lock the backup circuit breaker; The electric motor device of the external interlocking operation handle of the spare circuit breaker is electrically connected to the locking control unit of the spare circuit breaker. When the locking control unit of the spare circuit breaker is activated, the electric motor device of the external interlocking operation handle of the spare circuit breaker drives the operating handle of the spare circuit breaker to the on-off position. The motor device drives the operating handle of the standby circuit breaker to the on-off position. When the closing command is activated, the external interlocking operating handle of the standby circuit breaker is driven by the electric motor device to drive the operating handle of the standby circuit breaker to the closed position; Among them, the double-motor automatic switching switch improvement device, when the normal power supply circuit has power, the backup circuit breaker is forced to lock and does not operate, and the main circuit breaker can normally operate the function of opening, closing and tripping according to the power state of the normal power supply circuit.

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