Dual-power switching system and low-voltage magnetic control circuit breaker thereof

Abstract

The utility model discloses a dual-power switching system and a magnetic control circuit breaker thereof. The dual-power switching system comprises a control module; the executing mechanism comprises a first low-voltage magnetic control circuit breaking unit and a second low-voltage magnetic control circuit breaking unit, the first low-voltage magnetic control circuit breaking unit and the second low-voltage magnetic control circuit breaking unit are both connected with the control module, and the executing mechanism is used for executing dual-power-supply switching; and the quick connection module is connected with the third end of the execution mechanism. According to the technical scheme of the embodiment, the power supply can be quickly switched, the switching-on and switching-off speed is high, and power failure is effectively realized without perception.

Description

Technical Field

[0001] This utility model relates to the field of power distribution automation technology, and in particular to a dual power supply switching system and its magnetically controlled circuit breaker. Background Technology

[0002] With continuous economic development, power quality is receiving increasing attention, and power supply continuity is a crucial aspect of power quality. Critical locations such as hospitals, steel mills, and fire-fighting facilities require linked power supplies to maintain power continuity. Traditional dual-power switching systems suffer from non-fully electric operation, slow closing speeds, and difficulties in integrating circuit breakers, failing to meet users' needs for seamless power outage response. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a dual power supply switching system and its low-voltage magnetically controlled circuit breaker, which can quickly switch power supplies and has a fast opening and closing speed, effectively achieving seamless power outage.

[0004] On one hand, the dual power supply switching system and its low-voltage magnetically controlled circuit breaker according to embodiments of the present invention include:

[0005] Control module;

[0006] An actuator, comprising a first low-voltage magnetically controlled circuit breaker unit and a second low-voltage magnetically controlled circuit breaker unit, both of which are connected to the control module, is used to perform dual power supply switching.

[0007] A quick-connect module is connected to the actuator.

[0008] According to some embodiments of the present invention, the dual power switching system is further provided with a display module, which is connected to the actuator, and the display module is provided with a plurality of indicator lights for displaying the status of the actuator.

[0009] According to some embodiments of the present invention, the quick connection module is provided with multiple quick connectors, and the quick connection module is used to connect the power supply side and the load side of the control module and the actuator.

[0010] According to some embodiments of this utility model, the dual power supply switching system is provided with an incoming cable inlet, an outgoing cable inlet, and an emergency power inlet. The first low-voltage magnetically controlled circuit breaker unit is provided with a first switch, a second switch, and a third switch. The second low-voltage magnetically controlled circuit breaker unit is provided with a fourth switch, a fifth switch, and a sixth switch. One end of the first switch, the second switch, and the third switch is connected to the incoming cable inlet. The other end of the first switch, the second switch, and the third switch, and one end of the fourth switch, the fifth switch, and the sixth switch are all connected to the outgoing cable inlet. The other end of the fourth switch, the fifth switch, and the sixth switch is connected to the emergency power inlet.

[0011] According to some embodiments of the present invention, the first switch, the second switch, and the third switch form a first linkage switch unit, and the fourth switch, the fifth switch, and the sixth switch form a second linkage switch unit. The first low-voltage magnetic circuit breaker unit and the second low-voltage magnetic circuit breaker unit communicate via RS-485.

[0012] According to some embodiments of the present invention, the dual power supply switching system is further provided with an electrical protection module, which is connected to the display module and the actuator respectively.

[0013] According to some embodiments of this utility model, the electrical protection module is provided with a first fuse, a second fuse, a third fuse, and a fourth fuse; the display module is provided with a first indicator light, a second indicator light, and a third indicator light; one end of the first fuse is connected to one end of the first indicator light, and the other end of the first fuse is connected to the actuator; one end of the second fuse is connected to one end of the second indicator light, and the other end of the second fuse is connected to the actuator; one end of the third fuse is connected to one end of the third indicator light, and the other end of the third fuse is connected to the actuator; the other ends of the first indicator light, the second indicator light, and the third indicator light are all connected to one end of the fourth fuse; and the other end of the second fuse is grounded.

[0014] The dual power supply switching system and its magnetically controlled circuit breaker according to embodiments of the present invention have at least the following features:

[0015] Beneficial effects:

[0016] The system includes a control module and an actuator, comprising a first low-voltage magnetically controlled circuit breaker unit and a second low-voltage magnetically controlled circuit breaker unit, both connected to the control module. The actuator is used to perform dual power supply switching. A quick-connect module is also included, connected to the third terminal of the actuator. According to the technical solution of this embodiment, power supply switching can be performed quickly, with fast opening and closing speeds, effectively achieving seamless power outage detection.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the dual power supply switching system according to an embodiment of the present invention;

[0020] Figure 2 This is a primary wiring diagram of the dual power supply switching system according to an embodiment of the present invention. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1 and Figure 2This utility model embodiment proposes a dual power supply switching system. The dual power supply system includes a control module 100; an actuator 200, which includes a first low-voltage magnetically controlled circuit breaker unit 210 and a second low-voltage magnetically controlled circuit breaker unit 220, both connected to the control module 100. The actuator 200 is used to perform dual power supply switching; and a quick-connect module 300, connected to the actuator 200. According to the technical solution of this embodiment, power supply can be switched quickly, and the opening and closing speed is fast, effectively achieving seamless power outage detection.

[0025] It should be noted that the control module 100 is used to monitor and control the working status of the dual power switching module in the actuator 200, so that the first low-voltage magnetically controlled circuit breaker unit 210 and the second low-voltage magnetically controlled circuit breaker unit 220 can perform dual power switching actions. When the control module 100 detects a power failure, it quickly issues a command, and the first low-voltage magnetically controlled circuit breaker unit 210 and the second low-voltage magnetically controlled circuit breaker unit 220 quickly act, disconnecting the main power supply and connecting the backup power supply, thereby realizing the dual power supply switching of the actuator 200 and the tripping of both sides. In addition, in this embodiment, the opening and closing operations of the first low-voltage magnetically controlled circuit breaker unit 210 and the second low-voltage magnetically controlled circuit breaker unit 220 are both completed by the magnetic control mechanism, which is faster than the opening and closing speed of ordinary spring-type circuit breakers in the prior art. The switching time of a single unit is ≤15ms, and the switching speed can be ≤20ms by using two low-voltage magnetically controlled circuit breaker units for dual power switching. Furthermore, the control module 100 and the actuator 200 are connected via the quick-connect module 300 to the power supply and load sides on both sides, thereby supplying power to the dual power switching system.

[0026] It should be noted that the first low-voltage magnetic control circuit breaker unit 210 and the second low-voltage magnetic control circuit breaker unit 220 in the actuator 200 are both intelligent circuit breaker units. After the first low-voltage magnetic control circuit breaker unit 210 and the second magnetic control circuit breaker unit are preset, the functions of automatic switching and automatic recovery, automatic switching without automatic recovery, switching delay, overvoltage protection and undervoltage protection are realized.

[0027] It should be noted that this utility model does not involve any improvement of software methods. In other words, the data processing process of the control module 100 and the actuator 200 triggering control signals has not been improved and belongs to the prior art.

[0028] The dual power switching system is also equipped with a display module 400, which is connected to the actuator 200. The display module 400 is equipped with multiple indicator lights for displaying the status of the actuator 200.

[0029] It should be noted that the display mechanism is equipped with multiple indicator lights, each corresponding to the open or closed state of the actuator 200. When the actuator 200 is in the open or closed state, the corresponding status signal will trigger the corresponding indicator light to light up or turn off, thus intuitively displaying the status of the actuator 200. This allows operators to make timely decisions and operations based on the indicator light status, thereby improving the safety and reliability of the dual power supply switching system. Furthermore, operators can also determine the location and cause of faults by observing the on / off status of the indicator lights, enabling rapid fault localization in the system.

[0030] The quick-connect module 300 is provided with multiple quick connectors 310, which are used to connect the power supply side and load side of the control module 100 and the actuator 200.

[0031] It should be noted that the quick-connect module 300, by setting multiple quick connectors 310, achieves efficient connection between the power supply side and load side of the control module 100 and the actuator 200, and provides power to both the control module 100 and the actuator 200. This simplifies the complex steps of the transmission wiring method, reduces the possibility of wiring errors, and thus improves the connection efficiency of the dual power supply switching system. Simultaneously, the quick connectors 310 also effectively reduce the installation and commissioning time of the dual power supply switching system. Furthermore, the quick connectors 310 also have anti-error and anti-dislodgement functions, further enhancing the safety of the dual power supply switching system.

[0032] The dual power supply switching system is equipped with an incoming cable inlet 110, an outgoing cable inlet 120, and an emergency power inlet 130. The first low-voltage magnetic circuit breaker unit 210 is equipped with a first switch S1, a second switch S2, and a third switch S3. The second low-voltage magnetic circuit breaker unit 220 is equipped with a fourth switch S4, a fifth switch S5, and a sixth switch S6. One end of the first switch S1, the second switch S2, and the third switch S3 is connected to the incoming cable inlet 110. The other end of the first switch S1, the second switch S2, and the third switch S3, and one end of the fourth switch S4, the fifth switch S5, and the sixth switch S6 are all connected to the outgoing cable inlet 120. The other end of the fourth switch S4, the fifth switch S5, and the sixth switch S6 is all connected to the emergency power inlet 130.

[0033] It should be noted that the main power supply is connected through the incoming cable inlet 110, while the backup power supply is connected through the emergency power inlet 130. In the event of a main power supply failure, the system can quickly switch to the backup power supply, ensuring continuous power supply and thus improving power reliability. By controlling the switching states of the first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220, the dual-power switching system can flexibly switch between the main power supply and the backup power supply.

[0034] The first switch S1, the second switch S2 and the third switch S3 form the first linkage switch unit, and the fourth switch S4, the fifth switch S5 and the sixth switch S6 form the second linkage switch unit. The first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220 communicate via 485.

[0035] It should be noted that each interlocking switch unit contains multiple switches, which are redundant in design and function. When one switch fails, the others can still operate normally, thus ensuring the continuity and stability of the system. Furthermore, the first and second interlocking switch units are connected in series by stainless steel ropes to achieve mechanical interlocking between the first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220. When both the first and second low-voltage magnetic circuit breaker units 210 and 220 are in the closed state, the stainless steel ropes are in a slack state, therefore, when the first and second low-voltage magnetic circuit breaker units 210 and 220 open, they do not... Due to the influence of the stainless steel rope, when one of the first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220 is in the open state and the other is in the closed state, the stainless steel rope is in a near-tight state. Therefore, the first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220 are not affected by the stainless steel rope. When the first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220 have a tendency to close, the stainless steel rope is taut, thereby avoiding the situation where the outgoing lines of the first low-voltage magnetic circuit breaker unit 210 and the second low-voltage magnetic circuit breaker unit 220 close at the same time.

[0036] Furthermore, the RS-485 communication protocol, with its differential signal transmission method, has strong anti-interference capabilities and can maintain stable communication in complex electromagnetic environments. By adopting RS-485 communication, data transmission between the first low-voltage magnetically controlled circuit breaker unit 210 and the second low-voltage magnetically controlled circuit breaker unit 220 is more reliable, reducing system malfunctions or downtime caused by communication failures.

[0037] The dual power supply switching system is also equipped with an electrical protection module 500, which is connected to the display module 400 and the actuator 200 respectively.

[0038] It should be noted that when a fault occurs in the dual power supply switching system, the electrical protection module 500 can respond quickly and trigger the corresponding protection mechanism. Through its connection with the display module 400, the dual power supply switching system can immediately display fault information and notify maintenance personnel for handling. Simultaneously, its connection with the actuator 200 enables the system to automatically execute preset fault handling procedures, such as switching to the backup power supply and activating backup equipment, thereby improving fault response speed and handling efficiency.

[0039] The electrical protection module 500 is equipped with a first fuse Q1, a second fuse Q2, a third fuse Q3, and a fourth fuse Q4. The display module 400 is equipped with a first indicator light L1, a second indicator light L2, and a third indicator light L3. One end of the first fuse Q1 is connected to one end of the first indicator light L1, and the other end of the first fuse Q1 is connected to the actuator 200. One end of the second fuse Q2 is connected to one end of the second indicator light L2, and the other end of the second fuse Q2 is connected to the actuator 200. One end of the third fuse Q3 is connected to one end of the third indicator light L3, and the other end of the third fuse Q3 is connected to the actuator 200. The other ends of the first indicator light L1, the second indicator light L2, and the third indicator light L3 are all connected to one end of the fourth fuse Q4. The other end of the second fuse Q2 is grounded.

[0040] It should be noted that the electrical protection unit uses multiple fuses to protect the multiple indicator lights in the display module 400, preventing multiple indicator lights from short-circuiting. By using multiple fuses to protect the multiple indicator lights in the display module 400, timely and effective protection can be ensured in the event of a short circuit in any indicator light, preventing damage to the indicator light and other circuit components. Once a fuse blows, personnel can easily locate the fault by inspecting the fuse, thereby improving troubleshooting and repair efficiency.

[0041] Secondly, this utility model embodiment also proposes a low-voltage magnetically controlled circuit breaker, including the dual power supply switching system as described in the first aspect.

[0042] In the description of this specification, references to terms such as "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dual power supply switching system, characterized in that, include: Control module; An actuator, comprising a first low-voltage magnetically controlled circuit breaker unit and a second low-voltage magnetically controlled circuit breaker unit, both of which are connected to the control module, is used to perform dual power supply switching. A quick-connect module is connected to the actuator.

2. The dual power supply switching system according to claim 1, characterized in that, The dual power switching system is also equipped with a display module, which is connected to the actuator and has multiple indicator lights for displaying the status of the actuator.

3. The dual power supply switching system according to claim 1, characterized in that, The quick-connect module is equipped with multiple quick connectors, which are used to connect the power supply side and load side of the control module and the actuator.

4. The dual power supply switching system according to claim 1, characterized in that, The dual power supply switching system is provided with an incoming cable inlet, an outgoing cable inlet, and an emergency power inlet. The first low-voltage magnetic circuit breaker unit is provided with a first switch, a second switch, and a third switch. The second low-voltage magnetic circuit breaker unit is provided with a fourth switch, a fifth switch, and a sixth switch. One end of the first switch, the second switch, and the third switch is connected to the incoming cable inlet. The other end of the first switch, the second switch, and the third switch, and one end of the fourth switch, the fifth switch, and the sixth switch are all connected to the outgoing cable inlet. The other end of the fourth switch, the fifth switch, and the sixth switch is connected to the emergency power inlet.

5. The dual power supply switching system according to claim 4, characterized in that, The first switch, the second switch, and the third switch form a first linkage switch unit, and the fourth switch, the fifth switch, and the sixth switch form a second linkage switch unit. The first low-voltage magnetic circuit breaker unit and the second low-voltage magnetic circuit breaker unit communicate using 485.

6. The dual power supply switching system according to claim 2, characterized in that, The dual power supply switching system is also equipped with an electrical protection module, which is connected to the display module and the actuator respectively.

7. The dual power supply switching system according to claim 6, characterized in that, The electrical protection module is equipped with a first fuse, a second fuse, a third fuse, and a fourth fuse. The display module is equipped with a first indicator light, a second indicator light, and a third indicator light. One end of the first fuse is connected to one end of the first indicator light, and the other end of the first fuse is connected to the actuator. One end of the second fuse is connected to one end of the second indicator light, and the other end of the second fuse is connected to the actuator. One end of the third fuse is connected to one end of the third indicator light, and the other end of the third fuse is connected to the actuator. The other ends of the first indicator light, the second indicator light, and the third indicator light are all connected to one end of the fourth fuse. The other end of the second fuse is grounded.

8. A low-voltage magnetically controlled circuit breaker, characterized in that, include: The dual power supply switching system as described in any one of claims 1 to 7.

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