Secondary circuit temporary voltage transition management circuit

Abstract

The invention discloses a temporary voltage transition management circuit for a secondary circuit. The temporary voltage transition management circuit comprises an input module, an output module and a switching module, the input module comprises an alternating-current input unit and a direct-current input unit, the alternating-current input unit is used for inputting alternating-current voltage, and the direct-current input unit is used for inputting direct-current voltage; the output module comprises an alternating-current output unit and a direct-current output unit, the alternating-current output unit is used for outputting alternating-current voltage, and the direct-current output unit is used for outputting direct-current voltage; the input end of the switching module is connected with the output end of the input module, the output end of the switching module is connected with the input end of the output module, and the switching module is used for connecting the alternating current input unit with the alternating current output unit or connecting the direct current input unit with the direct current output unit. The alternating current input unit and the alternating current output unit are connected for alternating current output according to power supply requirements required by actual scenes, or the direct current input unit and the direct current output unit are connected for direct current output.

Description

Technical Field

[0001] The invention relates to the technical field of power management, and in particular to a secondary circuit temporary voltage transition management circuit. Background Art

[0002] With the rapid development of modern industry and infrastructure construction, the reliability and flexibility of power supply are becoming increasingly demanding. Especially in scenarios such as emergency repairs, temporary construction or disaster relief, it is particularly important to quickly and safely provide power to equipment. However, existing power supply equipment can usually only provide a single output and cannot meet the power needs in different scenarios. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a secondary circuit temporary voltage transition management circuit to achieve switching between AC and DC output according to demand.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A secondary circuit temporary voltage transition management circuit comprises an input module, an output module and a switching module; the input module comprises an AC input unit and a DC input unit, the AC input unit is used to input an AC voltage, and the DC input unit is used to input a DC voltage; the output module comprises an AC output unit and a DC output unit, the AC output unit is used to output an AC voltage, and the DC output unit is used to output a DC voltage; the input end of the switching module is connected to the output end of the input module, and the output end of the switching module is connected to the input end of the output module, so as to connect the AC input unit with the AC output unit, or to connect the DC input unit with the DC output unit.

[0005] The beneficial effect of the present invention is that after the DC voltage and the AC voltage are inputted respectively by the input module, the AC input unit is connected to the AC output unit, and the DC input unit is connected to the DC output unit through the switching module, so that the switching module can connect the AC input unit to the AC output unit for AC output, or connect the DC input unit to the DC output unit for DC output according to the power supply requirements of the actual scenario, thereby realizing switching of AC or DC output according to the requirements, while the prior art usually requires replacing the output head to achieve this. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a module schematic diagram of a secondary circuit temporary voltage transition management circuit in an embodiment of the present invention; Figure 2 It is a circuit connection diagram of a secondary circuit temporary voltage transition management circuit in an embodiment of the present invention; Figure 3 It is a schematic diagram of the connection between the switching module, the input module and the output module in a secondary circuit temporary voltage transition management circuit in an embodiment of the present invention; Figure 4 It is a partial circuit connection diagram of a switching module in a secondary circuit temporary voltage transition management circuit in an embodiment of the present invention; Figure 5 A circuit connection diagram of a wireless controller of a secondary circuit temporary voltage transition management circuit in an embodiment of the present invention; Description of labels: 1. Input module; 11. AC input unit; 12. DC input unit; 2. Output module; 21. AC output unit; 22. DC output unit; 3. Switching module; 4. Wireless controller; 5. Charging connector; KM1, first AC relay; KM2, first DC relay; U1, first wireless unit; U2, power conversion unit; SB0, second switch; HL0, second status indicator light; KA1, second AC relay; KA2, second DC relay; U3, second wireless unit; U5, battery; U4, control unit; SB1, first switch; HL1, first status indicator light; M, winding motor. DETAILED DESCRIPTION

[0007] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0008] A secondary circuit temporary voltage transition management circuit comprises an input module, an output module and a switching module; the input module comprises an AC input unit and a DC input unit, the AC input unit is used to input an AC voltage, and the DC input unit is used to input a DC voltage; the output module comprises an AC output unit and a DC output unit, the AC output unit is used to output an AC voltage, and the DC output unit is used to output a DC voltage; the input end of the switching module is connected to the output end of the input module, and the output end of the switching module is connected to the input end of the output module, so as to connect the AC input unit with the AC output unit, or to connect the DC input unit with the DC output unit.

[0009] From the above description, it can be seen that the beneficial effect of the present invention is that after the DC voltage and the AC voltage are respectively input by the input module, the AC input unit is connected to the AC output unit, and the DC input unit is connected to the DC output unit through the switching module, so that the switching module can connect the AC input unit to the AC output unit for AC output, or connect the DC input unit to the DC output unit for DC output according to the power supply requirements of the actual scenario, thereby realizing switching of AC or DC output according to demand, which is usually achieved by replacing the output head in the prior art.

[0010] Furthermore, the switching module includes a first AC relay and a first DC relay; the switch end of the first AC relay connects the AC input unit with the AC output unit, and the control end of the first AC relay is used to receive an AC control signal and control the off state of the switch end; the switch end of the first DC relay connects the DC input unit with the DC output unit, and the control end of the first DC relay is used to receive a DC control signal and control the off state of the switch end.

[0011] From the above description, it can be seen that by setting the first AC relay to control the on / off state of the AC circuit, and by using the first DC relay to control the on / off state of the DC circuit, the switching between AC output and DC output is achieved by controlling the first AC relay and the first DC relay.

[0012] Furthermore, the switching module also includes a first wireless unit, a power conversion unit and a wireless controller; the input end of the power conversion unit is connected to the output end of the input module; the output end of the power conversion unit is connected to the power supply end of the first wireless unit; the first output end of the first wireless unit is connected to the control end of the first AC relay, and the second output end of the first wireless unit is connected to the control end of the first DC relay; the wireless controller communicates wirelessly with the first wireless unit, and the wireless controller is used to send the AC control signal and / or DC control signal.

[0013] It can be seen from the above description that by providing the first wireless unit and the wireless controller, the switching between the AC output and the DC output can be achieved by remote control based on the wireless controller.

[0014] Furthermore, the switching module also includes a second AC relay and a second DC relay; the control end of the second AC relay is connected to the first output end of the first wireless unit, and the switch end of the second AC relay is connected to the control end of the first AC relay; the control end of the second DC relay is connected to the second output end of the first wireless unit, and the switch end of the second DC relay is connected to the control end of the first DC relay.

[0015] From the above description, it can be seen that by setting a second AC relay to control the first AC relay, and by using a second DC relay to control the first DC relay, the contacts of the first wireless unit can be protected, and the surge problem of the output coil of the first AC relay and the first DC relay can be prevented, thereby improving the circuit safety.

[0016] Furthermore, the wireless controller includes a second wireless unit, a battery and a control unit; the output end of the battery is respectively connected to the power supply end of the second wireless unit and the power supply end of the control unit; the signal end of the control unit is connected to the signal end of the second wireless unit, and the control unit is used to generate the AC control signal and the DC control signal; the second wireless unit communicates wirelessly with the first wireless unit.

[0017] From the above description, it can be seen that by setting a battery to power the second wireless unit and the control unit, the control unit can be controlled by buttons or touch screens to meet the usage requirements of different scenarios.

[0018] Furthermore, the wireless controller also includes a first switch and a first status indicator light; the output end of the battery is connected to one end of the first switch, and the other end of the first switch is respectively connected to the first status indicator light, the power supply end of the second wireless unit and the power supply end of the control unit.

[0019] It can be seen from the above description that by providing the first switch and the first status indicator light, the on or off status of the wireless controller can be controlled by the first switch, and the on and off status can be displayed by the first status indicator light.

[0020] Furthermore, the wireless controller also includes a charging connector; the charging connector is connected to the input end of the battery.

[0021] It can be seen from the above description that the battery can be charged by providing a charging connector.

[0022] Furthermore, it also includes a voltmeter; the input end of the voltmeter is connected to the output end of the input module; the output end of the voltmeter is connected to the signal end of the first wireless unit.

[0023] From the above description, it can be seen that by setting a voltmeter, the status of the AC voltage and DC voltage input by the input module can be displayed; or by connecting the voltmeter to the output module, the status of the output AC voltage and DC voltage can be displayed.

[0024] Furthermore, the switching module also includes a second switch and a second status indicator light; the output end of the power conversion unit is connected to one end of the second switch, and the other end of the second switch is respectively connected to the power supply end of the first wireless unit and the second status indicator light.

[0025] It can be seen from the above description that by providing the second switch and the second status indicator light, the on or off status of the first wireless unit can be controlled by the second switch, and the on and off status can be displayed by the second status indicator light.

[0026] Furthermore, it also includes a winding motor; the input end of the winding motor is connected to the output end of the input module.

[0027] It can be seen from the above description that by providing a winding motor, the circuit can control the length of the wiring cable while supplying power to the outside, which is more conducive to supplying power to the outside.

[0028] The secondary circuit temporary voltage transition management circuit provided by the present invention can be applied to emergency maintenance, temporary construction or disaster relief scenarios, and supports multiple voltage and current specification outputs to meet the power requirements of different devices. The following is an explanation through specific implementation methods: Embodiment 1 Please refer to Figure 1 A secondary circuit temporary voltage transition management circuit, characterized in that it includes an input module 1, an output module 2 and a switching module 3; the input module 1 includes an AC input unit 11 and a DC input unit 12, the AC input unit 11 is used to input AC voltage, and the DC input unit 12 is used to input DC voltage; the output module 2 includes an AC output unit 21 and a DC output unit 22, the AC output unit 21 is used to output AC voltage, and the DC output unit 22 is used to output DC voltage; the input end of the switching module 3 is connected to the output end of the DC input unit 12, and the output end of the switching module 3 is connected to the input end of the DC output unit 22; or, the input end of the switching module 3 is connected to the output end of the AC input unit 11, and the output end of the switching module 3 is connected to the input end of the AC output unit 21.

[0029] Please refer to Figure 2, the switching module 3 includes a first AC relay KM1, a first DC relay KM2, a first wireless unit U1, a power conversion unit U2 and a wireless controller 4; wherein, the input module 1 can use a conductive slip ring, model XH3899-12P; the output module 2 can use a terminal block; the switch end of the first AC relay KM1 connects the AC input unit 11 with the AC output unit 21, and the control end of the first AC relay KM1 is used to receive an AC control signal and control the off state of the switch end; the switch end of the first DC relay KM2 connects the DC input unit 12 with the DC output unit 22, and the control end of the first DC relay KM2 is used to receive a DC control signal and control the off state of the switch end. Figure 3 As shown, the AC input unit 11 on the left side of the input module 1 is used to input a 4-phase AC voltage, including phase A, phase B, phase C and phase N; the DC input unit 12 on the right side of the input module 1 is used to input a protection voltage (BM- and BM+) and a control voltage (KM- and KM+); then, the output end of the AC input unit 11 is connected to the AC output unit 21 on the left side of the output unit through the first AC relay KM1, and the output end of the DC input unit 12 is connected to the DC output unit 22 on the right side of the output unit through the first DC relay KM2.

[0030] Please refer to Figure 4 , the input end of the power conversion unit U2 is connected to the output end of the input module 1; the output end of the power conversion unit U2 is connected to the power supply end (24+ and 24-) of the first wireless unit U1; the first output end of the first wireless unit U1 is connected to the control end of the first AC relay KM1, and the second output end of the first wireless unit U1 is connected to the control end of the first DC relay KM2; at the same time, a second switch SB0 and a second status indicator light HL0 are also provided; the output end of the power conversion unit U2 is connected to one end of the second switch SB0, and the other end of the second switch SB0 is respectively connected to the power supply end of the first wireless unit U1 and the second status indicator light HL0; the second switch SB0 is set at the positive pole (24+) of the output end of the power conversion unit U2; wherein the live wire input end (L) of the power conversion unit U2 is also provided with a control switch SA0 for starting the power conversion unit U2; the wireless controller 4 communicates wirelessly with the first wireless unit U1, and the wireless controller 4 is used to send an AC control signal or / and a DC control signal.

[0031] In an optional embodiment, the switching module 3 also includes a second AC relay KA1 and a second DC relay KA2; the control end of the second AC relay KA1 is connected to the first output end (Q0.0) of the first wireless unit U1, and the switch end of the second AC relay KA1 is connected to the control end of the first AC relay KM1; the control end of the second DC relay KA2 is connected to the second output end (Q0.1) of the first wireless unit U1, and the switch end of the second DC relay KA2 is connected to the control end of the first DC relay KM2. A voltmeter is also provided in the circuit; the input end of the voltmeter is connected to the output end of the input module 1; the output end of the voltmeter is connected to the signal end of the first wireless unit U1; Figure 4 As shown, a DC voltmeter 1, a DC voltmeter 2 and an AC voltmeter 1 are provided respectively for detecting the input and output voltage conditions.

[0032] Please refer to Figure 5 The wireless controller 4 includes a second wireless unit U3, a battery U5, a control unit U4, a first switch SB1 and a first status indicator light HL1; the first switch SB1 and the first status indicator light HL1 can be metal self-locking buttons with lights, and the control unit U4 can be a display and control PLC (Programmable Logic Controller); the output end (O+ and O-) of the battery U5 is respectively connected to the power supply end (24+ and 24-) of the second wireless unit U3 and the power supply end (24+ and 24-) of the control unit U4; the signal end (485A and 485B) of the control unit U4 is connected to the signal end (485A and 485B) of the second wireless unit U3, and the control unit U4 is used to generate AC control signals and DC control signals; the second wireless unit U3 communicates wirelessly with the first wireless unit U1; the output end of the battery U5 is connected to one end of the first switch SB1, and the other end of the first switch SB1 is respectively connected to the first status indicator light HL1, the power supply end of the second wireless unit U3 and the power supply end of the control unit U4. Meanwhile, in a further embodiment, the battery U5 is a rechargeable lithium battery U5 and is further provided with a charging connector 5 ; the charging connector 5 is connected to the input terminals (in+ and in-) of the battery U5 .

[0033] In order to be able to adjust the cable length while supplying power, a winding motor M is also provided; the input end of the winding motor M is connected to the output end of the input module 1; the winding motor M is controlled by a DC brushless motor controller, and at the same time, a boat-shaped self-locking three-speed switch and a speed control knob are provided to control the winding motor M.

[0034] The specific working principle of the above secondary circuit temporary voltage transition management circuit is as follows: The second AC relay KA1 or the second DC relay KA2 is controlled by the control unit U4 according to the current output demand. For example, after pressing a button or touching the screen on the remote control screen, the second wireless unit U3 sends a lora wireless signal, and then the first wireless unit U1 receives the lora wireless signal and triggers the second AC relay KA1 or the second DC relay KA2. Then the second AC relay KA1 or the second DC relay KA2 further triggers the first AC relay KM1 or the first DC relay KM2, so that the first AC relay KM1 connects the AC input unit 11 with the AC output unit 21, or the first DC relay KM2 connects the DC input unit 12 with the DC output unit 22.

[0035] In summary, the present invention provides a secondary circuit temporary voltage transition management circuit, which inputs the DC voltage and the AC voltage respectively through the input module, and then connects the AC input unit with the AC output unit, and connects the DC input unit with the DC output unit through the switching module, so that the switching module can connect the AC input unit with the AC output unit for AC output, or connect the DC input unit with the DC output unit for DC output according to the power supply requirements of the actual scenario, thereby realizing switching of AC or DC output according to demand.

[0036] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A secondary circuit temporary voltage transition management circuit, characterized in that: It includes input module, output module and switching module; The input module includes an AC input unit and a DC input unit, the AC input unit is used to input an AC voltage, and the DC input unit is used to input a DC voltage; The output module includes an AC output unit and a DC output unit, wherein the AC output unit is used to output an AC voltage, and the DC output unit is used to output a DC voltage; The input end of the switching module is connected to the output end of the DC input unit, and the output end of the switching module is connected to the input end of the DC output unit; or, the input end of the switching module is connected to the output end of the AC input unit, and the output end of the switching module is connected to the input end of the AC output unit.

2. A secondary circuit temporary voltage transition management circuit according to claim 1, characterized in that: The switching module includes a first AC relay and a first DC relay; The switch end of the first AC relay connects the AC input unit with the AC output unit, and the control end of the first AC relay is used to receive an AC control signal and control the off state of the switch end; The switch end of the first DC relay connects the DC input unit with the DC output unit, and the control end of the first DC relay is used to receive a DC control signal to control the off state of the switch end.

3. A secondary circuit temporary voltage transition management circuit according to claim 2, characterized in that: The switching module also includes a first wireless unit, a power conversion unit and a wireless controller; The input end of the power conversion unit is connected to the output end of the input module; The output end of the power conversion unit is connected to the power supply end of the first wireless unit; The first output end of the first wireless unit is connected to the control end of the first AC relay, and the second output end of the first wireless unit is connected to the control end of the first DC relay; The wireless controller communicates wirelessly with the first wireless unit, and the wireless controller is used to send the AC control signal and / or the DC control signal.

4. A secondary circuit temporary voltage transition management circuit according to claim 3, characterized in that: The switching module also includes a second AC relay and a second DC relay; The control end of the second AC relay is connected to the first output end of the first wireless unit, and the switch end of the second AC relay is connected to the control end of the first AC relay; The control end of the second DC relay is connected to the second output end of the first wireless unit, and the switch end of the second DC relay is connected to the control end of the first DC relay.

5. A secondary circuit temporary voltage transition management circuit according to claim 3, characterized in that: The wireless controller includes a second wireless unit, a battery and a control unit; The output end of the battery is connected to the power supply end of the second wireless unit and the power supply end of the control unit respectively; The signal end of the control unit is connected to the signal end of the second wireless unit, and the control unit is used to generate the AC control signal and the DC control signal; The second wireless unit communicates wirelessly with the first wireless unit.

6. A secondary circuit temporary voltage transition management circuit according to claim 5, characterized in that: The wireless controller also includes a first switch and a first status indicator light; The output end of the battery is connected to one end of the first switch, and the other end of the first switch is respectively connected to the first status indicator light, the power supply end of the second wireless unit, and the power supply end of the control unit.

7. A secondary circuit temporary voltage transition management circuit according to claim 5 or 6, characterized in that: The wireless controller also includes a charging connector; The charging connector is connected to the input terminal of the battery.

8. A secondary circuit temporary voltage transition management circuit according to claim 3, characterized in that: Also included is a voltmeter; The input end of the voltmeter is connected to the output end of the input module; The output end of the voltmeter is connected to the signal end of the first wireless unit.

9. A secondary circuit temporary voltage transition management circuit according to claim 3, characterized in that: The switching module also includes a second switch and a second status indicator light; The output end of the power conversion unit is connected to one end of the second switch, and the other end of the second switch is respectively connected to the power supply end of the first wireless unit and the second status indicator light.

10. A secondary circuit temporary voltage transition management circuit according to claim 1, characterized in that: Also includes a winding motor; The input end of the winding motor is connected to the output end of the input module.

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