Multi-path power supply control circuit
Through the multi-channel power control circuit, combined with components such as three-phase AC contactors and leakage protectors, safe power supply management of radio frequency power equipment is achieved, the problem of insufficient power supply safety is solved, and the safety and equipment protection capabilities are improved in the event of failures.
Patent Information
- Application Number
- CN202422242673.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In existing power supply systems, the power supply safety of RF power supply equipment is insufficient, especially in the failure handling capacity such as overcurrent and leakage.
Multi-channel power supply control circuit is adopted, including a first power supply module, a second power supply module and a control module. The power output is controlled through the control module, and combined with a three-phase AC contactor, a leakage protector and an air circuit breaker, safe power supply management of radio frequency power equipment is realized.
It improves the power supply safety of RF power supply equipment, can quickly cut off the power output in case of failure, prevent equipment damage and fire and other accidents, and enhances overall safety.
Smart Images
Figure CN223285591U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of power management, and in particular to a multi-channel power supply control circuit. Background Art
[0002] In modern industrial equipment power supply systems, the power supply of RF power equipment is a critical link. The stable operation of RF power equipment plays a vital role in the normal operation of the entire system.
[0003] However, conventional power supply systems typically only provide a fixed voltage output and have limited ability to handle faults such as overcurrent and leakage. Therefore, improving the power supply safety of RF power supplies has become an urgent issue to be addressed. Utility Model Content
[0004] In order to achieve safe power supply management for multiple radio frequency power supply devices, the present application provides a multi-channel power supply control circuit.
[0005] The present application provides a multi-channel power supply control circuit that adopts the following technical solution:
[0006] A multi-way power supply control circuit includes: a first power supply module, including a first power supply and a first connection port, the first connection port being provided on a first radio frequency power supply device; a second power supply module, including a second power supply and a second connection port, the second connection port being provided on a second radio frequency power supply device; a control module, wherein an output end of the control module is electrically connected to a control end of the first power supply module and a control end of the second power supply module; the control module is configured to control the electrical connection or disconnection between the output end of the first power supply and the first connection port, and the electrical connection or disconnection between the second power supply and the second connection port.
[0007] By adopting the above technical solution, under normal working conditions, the control module controls the output voltage of the first power supply to be output to the first connection port, and the control module controls the output voltage of the second power supply to be output to the second connection port, thereby enabling the first RF power supply device and the second RF power supply device to output voltage normally; when the first RF power supply device and / or the second RF power supply device fails, the control module can prevent the output voltage of the first power supply from being output to the first connection port, and prevent the output voltage of the second power supply from being output to the second connection port, thereby enabling power supply management of multiple RF power supply devices and improving overall safety.
[0008] Preferably, the first power supply module also includes a three-phase AC contactor KM1, the output end L1, output end L2 and output end L3 of the first power supply are respectively electrically connected to the three input ends of the three-phase AC contactor KM1, and the output end N of the first power supply is electrically connected to the A2 end of the three-phase AC contactor KM1; the three output ends and the output end N of the three-phase AC contactor KM1 are respectively electrically connected to the four power supply connection ends of the first connection port, and the A1 end of the three-phase AC contactor KM1 is set as the control end of the first power supply module.
[0009] By adopting the above technical solution, when the control module controls the three-phase AC contactor KM1 to be in a closed state, the output voltage of the first power supply can be output to the first connection port; when the output end of the control module controls the three-phase AC contactor KM1 to be in an open state, the output voltage of the first power supply cannot be output to the first connection port.
[0010] Preferably, the first power supply module further includes a four-phase leakage protector OF1, and the output terminals L1, L2, L3 and N of the first power supply are electrically connected to the three-phase AC contactor KM1 through the leakage protector OF1.
[0011] By adopting the above technical solution and setting up the leakage protector OP1, it is possible to monitor in real time whether there is leakage in the circuit. Once leakage is detected, the leakage protector OP1 will automatically disconnect the circuit immediately to ensure the safety of personnel and equipment.
[0012] Preferably, the first power supply module further includes a three-phase air circuit breaker OF2, and the three output ends of the three-phase AC contactor KM1 are electrically connected to the first connection port through the air circuit breaker OF2.
[0013] By adopting the above technical solution, when an overcurrent fault occurs in the first RF power supply device, the air circuit breaker OF2 will automatically disconnect, thereby preventing safety accidents such as equipment damage or fire caused by excessive current.
[0014] Preferably, the second power supply module also includes a three-phase AC contactor KM2, the output terminal L1, output terminal L2 and output terminal L3 of the second power supply are respectively electrically connected to the three input terminals of the three-phase AC contactor KM2, and the output terminal N of the second power supply is electrically connected to the A2 terminal of the three-phase AC contactor KM2; the three output terminals and the output terminal N of the three-phase AC contactor KM2 are respectively electrically connected to the four power supply connection terminals of the second connection port, and the A1 terminal of the three-phase AC contactor KM2 is set as the control terminal of the second power supply module.
[0015] By adopting the above technical solution, when the control module controls the three-phase AC contactor KM2 to be in a closed state, the output voltage of the second power supply can be output to the second connection port; when the output end of the control module controls the three-phase AC contactor KM2 to be in an open state, the output voltage of the second power supply cannot be output to the second connection port.
[0016] Preferably, the second power supply module further includes a four-phase leakage protector OF3, and the output terminals L1, L2, L3 and N of the second power supply are electrically connected to the three-phase AC contactor KM2 through the leakage protector OF3.
[0017] By adopting the above technical solution, preferably, the second power supply module further includes a three-phase air circuit breaker OF4, and the three output ends of the three-phase AC contactor KM2 are electrically connected to the second connection port through the air circuit breaker OF4.
[0018] By adopting the above technical solution, when an overcurrent fault occurs in the second RF power supply device, the air circuit breaker OF4 will automatically disconnect, thereby preventing safety accidents such as equipment damage or fire caused by excessive current.
[0019] Preferably, the control module includes a transformer and an intermediate relay KM3, pin 1 of the transformer is electrically connected to the output terminal L1 of the first power supply or the second power supply, pin 2 of the transformer is electrically connected to the output terminal N of the first power supply or the second power supply, pin 3 of the transformer U1 is electrically connected to pin 1 of the intermediate relay KA1 through the emergency stop switch KM3, and pin 4 of the transformer U1 is electrically connected to pin 2 of the intermediate relay KA1; pin 8 of the intermediate relay KA1 is electrically connected to pin 1 of the transformer U1, and pin 5 of the intermediate relay KA1 is electrically connected to the control end of the first power supply module and the control end of the second power supply module.
[0020] By adopting the above technical solution, a transformer can be used to convert the output voltage of the first or second power supply into a voltage that can be received by the intermediate relay KM3. Under normal operation, the emergency stop switch KM3 is in the closed state, at which time the intermediate relay KA1 can be in the normally closed state, allowing the output voltage of the first or second power supply to be input to the control end of the first power supply module and the second power supply module through the transformer, so that both the first connection port and the second connection port can receive voltage. When the RF power supply device fails, the emergency stop switch KM3 can be opened to disconnect the power supply to the RF power supply device, resulting in no voltage output, thus providing protection.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. By setting up the first power supply module and the second power supply module, it is possible to power on RF power devices with different power supply requirements, and the control module can control the power supply of multiple RF power devices; in an emergency, the user can quickly cut off the voltage output of the RF power device by turning on the emergency stop switch, thereby improving overall safety.
[0023] 2. By setting up air circuit breakers and leakage protectors, multiple safety protections can be achieved. When an overcurrent or leakage fault occurs in the RF power supply, the circuit can be automatically disconnected, greatly improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a circuit diagram of an embodiment of the present application.
[0025] Figure numerals: 1. First power supply module; 2. Second power supply module; 3. Control module. DETAILED DESCRIPTION
[0026] The following is combined with Figure 1 This application is described in further detail.
[0027] The embodiments of the present application disclose a multi-channel power supply control circuit.
[0028] Reference Figure 1 , a multi-channel power supply control circuit, including a first power supply module 1, a second power supply module 2 and a control module 3. The first power supply module 1 includes a first power supply and a first connection port P1, and the first connection port P1 is set as the power supply port of the first radio frequency power supply device; the second power supply module 2 includes a second power supply and a second connection port P2, and the second connection port P2 is set as the power supply port of the second radio frequency power supply device. The first power supply module 1 and the second power supply module 2 are both provided with control ends, and the control ends of the first control end and the second control end are both electrically connected to the output end of the control module 3. The control module 3 can be used to control the electrical connection or disconnection between the output end of the first power supply and the first connection port, as well as the electrical connection or disconnection between the second power supply and the second connection port, so as to control the power supply conditions of different radio frequency power supply devices. When multiple radio frequency power supply devices fail, relevant personnel can directly switch the power supply to multiple radio frequency power supply devices through the control module, thereby improving overall safety.
[0029] The first power supply module 1 also includes a three-phase AC contactor KM1, a four-phase leakage protector OF1 and a three-phase air circuit breaker OF2. The first power supply is provided with four output terminals, and in this embodiment, the first power supply is set to a three-phase four-wire AC current of 208V. The output terminals L1, L2, L3 and N of the first power supply are respectively electrically connected to one end of the four-phase leakage protector OF1, and the output terminal L1 of the first power supply is electrically connected to pin 1 of the three-phase AC contactor KM1 through the leakage protector OF1, the output terminal L2 of the first power supply is electrically connected to pin 3 of the three-phase AC contactor KM1 through the leakage protector OF1, the output terminal L3 of the first power supply is electrically connected to pin 5 of the three-phase AC contactor KM1 through the leakage protector OF1, and the output terminal N of the first power supply is electrically connected to the A2 terminal of the three-phase AC contactor KM1 through the leakage protector OF1. Pin 2 of the three-phase AC contactor KM1 is electrically connected to pin 2 of the first connection port P1 via the three-phase air circuit breaker OF2. Pin 4 of the three-phase AC contactor KM1 is electrically connected to pin 2 of the first connection port P1 via the three-phase air circuit breaker OF2. Pin 6 of the three-phase AC contactor KM1 is electrically connected to pin 5 of the first connection port P1 via the three-phase air circuit breaker OF2. Pin 3 of the first connection port P1 is grounded, and pin 4 of the first connection port is electrically connected to terminal A2 of the three-phase AC contactor KM1. Terminal A1 of the three-phase AC contactor KM1 is configured as the control terminal of the first power supply module 1.
[0030] When an overcurrent fault occurs in the first RF power supply device, that is, the current in the circuit exceeds the threshold set by the air circuit breaker OF2, the air circuit breaker OF2 will automatically disconnect, thereby preventing equipment damage or safety accidents such as fire caused by excessive current. In addition, by setting up a leakage protector OP1, it is possible to monitor in real time whether there is leakage in the circuit. Once leakage is detected, the leakage protector OP1 will immediately and automatically disconnect the circuit to ensure the safety of personnel and equipment. Before use, the relevant personnel will first close the air circuit breaker OF2; when the control module 3 triggers the three-phase AC contactor KM1 to be in a closed state, pin 1 of the three-phase AC contactor KM1 is electrically connected to pin 2, pin 3 to pin 4, and pin 5 to pin 6, so that the output voltage of the first power supply can be input to the first connection port P1, thereby enabling the first RF power supply device to have a voltage output.
[0031] The second power supply module 2 has the same structure as the first power supply module 1, including a three-phase AC contactor KM2, a four-phase leakage protector OF3, and a three-phase air circuit breaker OF4. In this embodiment, the second power supply is set to 380V AC current, and the A1 terminal of the three-phase AC contactor KM2 is configured as the control terminal of the second power supply module 2. When the control module 3 triggers the three-phase AC contactor KM2 to enter the closed state, the output voltage of the second power supply can be input to the second connection port P2, thereby enabling the second RF power supply device to generate a voltage output.
[0032] The control module 3 includes a transformer U1 and an intermediate relay KA1. Pin 1 of the transformer U1 is electrically connected to the output terminal L1 of the second power supply, pin 2 of the transformer U1 is electrically connected to the output terminal N of the second power supply, pin 3 of the transformer U1 is electrically connected to pin 1 of the intermediate relay KA1 via the emergency stop switch KM3, and pin 4 of the transformer U1 is electrically connected to pin 2 of the intermediate relay KA1. The transformer U1 is used to convert AC power into DC current that can drive the intermediate relay KA1, and in this embodiment, the output voltage of pin 3 of the transformer U1 is a 24V DC voltage. Pin 8 of the intermediate relay KA1 is electrically connected to pin 1 of the transformer U1, and pin 5 of the intermediate relay KA1 is electrically connected to the A1 terminal of the three-phase AC contactor KM1 and the A1 terminal of the three-phase AC contactor KM2. That is, pin 5 of the intermediate relay KA1 is electrically connected to the control terminal of the first power supply module 1 and the control terminal of the second power supply module 2.
[0033] Under normal operation, the emergency stop switch KM3 is closed, which in turn keeps the intermediate relay KA1 in its normally closed state. This allows the output voltage of the second power supply's output terminal L1 to be input to terminals A1 of the three-phase AC contactors KM1 and KM2 via the intermediate relay KA1. By controlling the electrical connection or disconnection of air circuit breakers OF2 and OF4, the power to the first and second connection ports P1 and P2 can be controlled.
[0034] When problems occur in multiple RF power supplies at the same time, relevant personnel can open the emergency stop switch in time to open the intermediate relay KA1, and then turn on the three-phase AC contactor KM1 and the three-phase AC contactor KM2, so that multiple RF power supplies have no voltage output.
[0035] Preferably, this embodiment may further include multiple other power modules, and the structures of the other power modules are the same as those of the first power supply module 1. The other power modules include other power supplies and other connection ports, and the control ends of the other power modules are electrically connected to the output ends of the control module 3, thereby being able to control more circuits.
[0036] The implementation principle of a multi-power supply control circuit in an embodiment of the present application is as follows: by setting a first power supply module 1 and a second power supply module 2, it is possible to power on RF power devices with different power supply requirements, and the power supply of multiple RF power devices can be controlled by the control module 3. When multiple RF power devices fail at the same time, the power supply to the power supply devices of multiple devices can be cut off at the same time through the control module 3, thereby improving overall safety.
[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A multi-channel power supply control circuit, characterized in that: include: A first power supply module (1) comprising a first power supply and a first connection port, wherein the first connection port is provided on a first radio frequency power supply device; A second power supply module (2) comprising a second power supply and a second connection port, wherein the second connection port is provided on a second radio frequency power supply device; A control module (3), wherein the output end of the control module (3) is electrically connected to the control end of the first power supply module (1) and the control end of the second power supply module (2); the control module (3) is used to control the electrical connection or disconnection between the output end of the first power supply and the first connection port, and the electrical connection or disconnection between the second power supply and the second connection port.
2. The multi-channel power supply control circuit according to claim 1, characterized in that: The first power supply module (1) further comprises a three-phase AC contactor KM1, wherein the output terminal L1, the output terminal L2 and the output terminal L3 of the first power supply are respectively electrically connected to the three input terminals of the three-phase AC contactor KM1, and the output terminal N of the first power supply is electrically connected to the A2 terminal of the three-phase AC contactor KM1; the three output terminals and the output terminal N of the three-phase AC contactor KM1 are respectively electrically connected to the four power supply connection terminals of the first connection port, and the A1 terminal of the three-phase AC contactor KM1 is set as the control terminal of the first power supply module (1).
3. The multi-channel power supply control circuit according to claim 2, characterized in that: The first power supply module (1) further comprises a four-phase leakage protector OF1, and the output terminals L1, L2, L3 and N of the first power supply are all electrically connected to the three-phase AC contactor KM1 via the leakage protector OF1.
4. A multi-channel power supply control circuit according to claim 2 or 3, characterized in that: The first power supply module (1) further comprises a three-phase air circuit breaker OF2, and the three output ends of the three-phase AC contactor KM1 are electrically connected to the first connection port via the air circuit breaker OF2.
5. The multi-channel power supply control circuit according to claim 1, characterized in that: The second power supply module (2) further comprises a three-phase AC contactor KM2, wherein the output terminal L1, the output terminal L2 and the output terminal L3 of the second power supply are respectively electrically connected to the three input terminals of the three-phase AC contactor KM2, and the output terminal N of the second power supply is electrically connected to the A2 terminal of the three-phase AC contactor KM2; the three output terminals and the output terminal N of the three-phase AC contactor KM2 are respectively electrically connected to the four power supply connection terminals of the second connection port, and the A1 terminal of the three-phase AC contactor KM2 is set as the control terminal of the second power supply module (2).
6. The multi-channel power supply control circuit according to claim 5, characterized in that: The second power supply module (2) further comprises a four-phase leakage protector OF3, and the output terminals L1, L2, L3 and N of the second power supply are all electrically connected to the three-phase AC contactor KM2 via the leakage protector OF3.
7. A multi-channel power supply control circuit according to claim 5 or 6, characterized in that: The second power supply module (2) further comprises a three-phase air circuit breaker OF4, and the three output ends of the three-phase AC contactor KM2 are electrically connected to the second connection port via the air circuit breaker OF4.
8. The multi-channel power supply control circuit according to claim 1, characterized in that: The control module (3) includes a transformer and an intermediate relay KM3, wherein pin 1 of the transformer is electrically connected to the output terminal L1 of the first power supply or the second power supply, pin 2 of the transformer is electrically connected to the output terminal N of the first power supply or the second power supply, pin 3 of the transformer U1 is electrically connected to pin 1 of the intermediate relay KA1 through the emergency stop switch KM3, and pin 4 of the transformer U1 is electrically connected to pin 2 of the intermediate relay KA1; pin 8 of the intermediate relay KA1 is electrically connected to pin 1 of the transformer U1, and pin 5 of the intermediate relay KA1 is electrically connected to the control terminal of the first power supply module (1) and the control terminal of the second power supply module (2).