A secondary circuit temporary voltage transition management circuit

Abstract

The application discloses a secondary circuit temporary voltage transition management circuit, comprising 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 for inputting AC voltage, and the DC input unit is used for inputting DC voltage; the output module comprises an AC output unit and a DC output unit, the AC output unit is used for outputting AC voltage, and the DC output unit is used for outputting DC 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 AC input unit with the AC output unit or connecting the DC input unit with the DC output unit. According to the power supply requirement required by an actual scene, the AC input unit is connected with the AC output unit for AC output, or the DC input unit is connected with the DC output unit for DC output.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power management, in particular to a secondary circuit temporary voltage transition management circuit. BACKGROUND

[0002] With the rapid development of modern industry and infrastructure construction, the reliability and flexibility of power supply are increasingly required. In particular, in emergency repair, temporary construction or disaster rescue scenarios, it is particularly important to provide power supply for equipment quickly and safely. However, existing power supply equipment can usually only provide a single output, which cannot meet the power supply requirements in different scenarios. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a secondary circuit temporary voltage transition management circuit that can switch between AC and DC output according to requirements.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is:

[0005] A secondary circuit temporary voltage transition management circuit includes an input module, an output module and a switching module. The input module includes an AC input unit and a DC input unit, the AC input unit is used to input AC voltage, and the DC input unit is used to input DC voltage. The output module includes an AC output unit and a DC output unit, the AC output unit is used to output AC voltage, and the DC output unit is used to output DC voltage. The input end of the switching module is connected with the output end of the input module, and the output end of the switching module is connected with the input end of the output module, which is used to connect the AC input unit with the AC output unit, or connect the DC input unit with the DC output unit.

[0006] The present application has the beneficial effect that by inputting DC voltage and AC voltage through the input module respectively, and then connecting the AC input unit with the AC output unit and the DC input unit with the DC output unit through the switching module, 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 scene, thereby realizing switching between AC and DC output according to requirements, while the prior art usually needs to replace the output head to achieve this. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 The module schematic diagram of the secondary circuit temporary voltage transition management circuit in the embodiment of the present application;

[0008] Figure 2A circuit connection schematic diagram of a secondary circuit temporary voltage transition management circuit in an embodiment of the present application;

[0009] Figure 3 A connection schematic diagram of a switching module and an input module and an output module of a secondary circuit temporary voltage transition management circuit in an embodiment of the present application;

[0010] Figure 4 A partial circuit connection schematic diagram of a switching module of a secondary circuit temporary voltage transition management circuit in an embodiment of the present application;

[0011] Figure 5 A circuit connection schematic diagram of a wireless controller of a secondary circuit temporary voltage transition management circuit in an embodiment of the present application;

[0012] Label explanation:

[0013] 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;

[0014] KM1, first AC relay; KM2, first DC relay; U1, first wireless unit; U2, power conversion unit; SB0, second switch; HL0, second state indicator lamp; KA1, second AC relay; KA2, second DC relay; U3, second wireless unit; U5, battery; U4, control unit; SB1, first switch; HL1, first state indicator lamp; M, winding motor. DETAILED DESCRIPTION

[0015] In order to explain the technical content, the achieved purposes and effects of the present application in detail, the following will be explained in combination with the embodiments and the accompanying drawings.

[0016] A secondary circuit temporary voltage transition management circuit, comprising 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 for inputting AC voltage, and the DC input unit is used for inputting DC voltage; the output module comprises an AC output unit and a DC output unit, the AC output unit is used for outputting AC voltage, and the DC output unit is used for outputting DC voltage; an input end of the switching module is connected with an output end of the input module, and an output end of the switching module is connected with an input end of the output module, which is used for connecting the AC input unit with the AC output unit or connecting the DC input unit with the DC output unit.

[0017] From the above description, the beneficial effects of the present application are that: by inputting the direct current voltage and alternating current voltage by the input module respectively, then connecting the alternating current input unit and the alternating current output unit by the switching module, and connecting the direct current input unit and the direct current output unit, the switching module can connect the alternating current input unit and the alternating current output unit for alternating current output, or connect the direct current input unit and the direct current output unit for direct current output according to the power supply demand required by the actual scene, so as to realize the switching of alternating current or direct current output according to the demand, while the prior art usually needs to replace the output head to realize it.

[0018] Further, the switching module comprises a first alternating current relay and a first direct current relay; the switch end of the first alternating current relay connects the alternating current input unit and the alternating current output unit, and the control end of the first alternating current relay is used for receiving an alternating current control signal and controlling the off state of the switch end; the switch end of the first direct current relay connects the direct current input unit and the direct current output unit, and the control end of the first direct current relay is used for receiving a direct current control signal and controlling the off state of the switch end.

[0019] From the above description, by setting the first alternating current relay to control the on-off state of the alternating current loop, and by setting the first direct current relay to control the on-off state of the direct current loop, the switching of alternating current output and direct current output is realized by controlling the first alternating current relay and the first direct current relay.

[0020] Further, the switching module further comprises a first wireless unit, a power conversion unit and a wireless controller; the input end of the power conversion unit is connected with the output end of the input module; the output end of the power conversion unit is connected with the power supply end of the first wireless unit; the first output end of the first wireless unit is connected with the control end of the first alternating current relay, and the second output end of the first wireless unit is connected with the control end of the first direct current relay; the wireless controller and the first wireless unit communicate wirelessly, and the wireless controller is used for sending the alternating current control signal or / and the direct current control signal.

[0021] From the above description, by setting the first wireless unit and the wireless controller, the switching of alternating current output and direct current output can be realized in a remote control manner based on the wireless controller.

[0022] Further, the switching module further comprises a second AC relay and a second DC relay; a control end of the second AC relay is connected with a first output end of the first wireless unit, and a switch end of the second AC relay is connected with a control end of the first AC relay; a control end of the second DC relay is connected with a second output end of the first wireless unit, and a switch end of the second DC relay is connected with a control end of the first DC relay.

[0023] As can be seen from the above description, by setting the second AC relay for controlling the first AC relay and the second DC relay for controlling the first DC relay, the contacts of the first wireless unit can be protected, and the problem of coil inrush of the first AC relay and the first DC relay can be prevented, thereby improving the safety of the circuit.

[0024] Further, the wireless controller comprises a second wireless unit, a battery and a control unit; an output end of the battery is connected with a power supply end of the second wireless unit and a power supply end of the control unit respectively; a signal end of the control unit is connected with a signal end of the second wireless unit, and the control unit is used for generating the AC control signal and the DC control signal; the second wireless unit and the first wireless unit communicate wirelessly.

[0025] As can be seen from the above description, by setting the battery to supply power to the second wireless unit and the control unit, and by the control unit, the control mode such as a key or a touch screen can be realized, thereby meeting the use requirements of different scenes.

[0026] Further, the wireless controller further comprises a first switch and a first status indicator; an output end of the battery is connected with one end of the first switch, and the other end of the first switch is connected with the first status indicator, the power supply end of the second wireless unit and the power supply end of the control unit respectively.

[0027] As can be seen from the above description, by setting the first switch and the first status indicator, the opening or closing state of the wireless controller can be controlled by the first switch, and the opening and closing states can be displayed by the first status indicator.

[0028] Further, the wireless controller further comprises a charging connector; the charging connector is connected with an input end of the battery.

[0029] As can be seen from the above description, by setting the charging connector, the battery can be charged.

[0030] Further, a voltmeter is further included; an input end of the voltmeter is connected with an output end of the input module; and an output end of the voltmeter is connected with a signal end of the first wireless unit.

[0031] From the above description, by setting the voltmeter, the state of the AC voltage and DC voltage input by the input module can be displayed; or by connecting the voltmeter with the output module, the state of the output AC voltage and DC voltage can be displayed.

[0032] Further, the switching module further comprises a second switch and a second state indicating lamp; one end of the power conversion unit is connected with the second switch, and the other end of the second switch is connected with the power supply end of the first wireless unit and the second state indicating lamp respectively.

[0033] From the above description, by setting the second switch and the second state indicating lamp, the opening or closing state of the first wireless unit can be controlled through the second switch, and the opening and closing state can be displayed through the second state indicating lamp.

[0034] Further, it further comprises a winding motor; the input end of the winding motor is connected with the output end of the input module.

[0035] From the above description, by setting the 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.

[0036] The secondary circuit temporary voltage transition management circuit provided by the application can be applied to emergency maintenance, temporary construction or disaster rescue scenes, supports multiple voltage and current specifications output, and adapts to power supply requirements of different devices, and the following will be described through specific embodiments:

[0037] Embodiment one

[0038] Please refer to Figure 1 A secondary circuit temporary voltage transition management circuit, characterized by comprising an input module 1, an output module 2 and a switching module 3; the input module 1 comprises an AC input unit 11 and a DC input unit 12, the AC input unit 11 is used for inputting AC voltage, and the DC input unit 12 is used for inputting DC voltage; the output module 2 comprises an AC output unit 21 and a DC output unit 22, the AC output unit 21 is used for outputting AC voltage, and the DC output unit 22 is used for outputting DC voltage; the input end of the switching module 3 is connected with the output end of the DC input unit 12, and the output end of the switching module 3 is connected with the input end of the DC output unit 22; or, the input end of the switching module 3 is connected with the output end of the AC input unit 11, and the output end of the switching module 3 is connected with the input end of the AC output unit 21.

[0039] Please refer to Figure 2The switching module 3 comprises 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. The input module 1 can adopt a conductive slip ring with a model of XH3899-12P. The output module 2 can adopt a terminal array. The switching end of the first AC relay KM1 connects the AC input unit 11 with the AC output unit 21. The control end of the first AC relay KM1 is used for receiving an AC control signal and controlling the off state of the switching end. The switching end of the first DC relay KM2 connects the DC input unit 12 with the DC output unit 22. The control end of the first DC relay KM2 is used for receiving a DC control signal and controlling the off state of the switching end. As shown in Figure 3 The AC input unit 11 on the left side of the input module 1 is used for inputting a 4-phase AC voltage, including A phase, B phase, C phase and N phase. The DC input unit 12 on the right side of the input module 1 is used for inputting 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 with the AC output unit 21 on the left side of the output unit through the first AC relay KM1. The output end of the DC input unit 12 is connected with the DC output unit 22 on the right side of the output unit through the first DC relay KM2.

[0040] Please refer to Figure 4 The input end of the power conversion unit U2 is connected with the output end of the input module 1. The output end of the power conversion unit U2 is connected with 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 with the control end of the first AC relay KM1. The second output end of the first wireless unit U1 is connected with the control end of the first DC relay KM2. Meanwhile, a second switch SB0 and a second state indicating lamp HL0 are arranged. The output end of the power conversion unit U2 is connected with one end of the second switch SB0. The other end of the second switch SB0 is connected with the power supply end of the first wireless unit U1 and the second state indicating lamp HL0 respectively. The second switch SB0 is arranged at the positive pole (24+) of the output end of the power conversion unit U2. The live wire input end (L) of the power conversion unit U2 is further provided with a control switch SA0, which is used for starting the power conversion unit U2. The wireless controller 4 communicates with the first wireless unit U1 wirelessly. The wireless controller 4 is used for sending an AC control signal or / and a DC control signal.

[0041] In an optional embodiment, the switching module 3 further comprises a second AC relay KA1 and a second DC relay KA2; the control end of the second AC relay KA1 is connected with the first output end (Q0.0) of the first wireless unit U1, and the switching end of the second AC relay KA1 is connected with the control end of the first AC relay KM1; the control end of the second DC relay KA2 is connected with the second output end (Q0.1) of the first wireless unit U1, and the switching end of the second DC relay KA2 is connected with the control end of the first DC relay KM2. Wherein, a voltmeter is further arranged in the circuit; the input end of the voltmeter is connected with the output end of the input module 1; the output end of the voltmeter is connected with the signal end of the first wireless unit U1; as shown in Figure 4 , a DC voltmeter 1, a DC voltmeter 2 and an AC voltmeter 1 are arranged respectively for detecting the input and output voltage conditions.

[0042] Please refer to Figure 5 , the wireless controller 4 comprises a second wireless unit U3, a battery U5, a control unit U4, a first switch SB1 and a first status indicator lamp HL1; the first switch SB1 and the first status indicator lamp HL1 can adopt a metal self-locking button with lamp, and the control unit U4 can adopt a display control PLC (Programmable Logic Controller); the output end (O+ and O-) of the battery U5 is connected with 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 respectively; the signal end (485A and 485B) of the control unit U4 is connected with the signal end (485A and 485B) of the second wireless unit U3, and the control unit U4 is used for generating AC control signals and DC control signals; the second wireless unit U3 and the first wireless unit U1 communicate wirelessly; the output end of the battery U5 is connected with one end of the first switch SB1, and the other end of the first switch SB1 is connected with the first status indicator lamp HL1, the power supply end of the second wireless unit U3 and the power supply end of the control unit U4 respectively. Meanwhile, in a further embodiment, the battery U5 samples a rechargeable lithium battery U5, and a charging connector 5 is further arranged; the charging connector 5 is connected with the input end (in+ and in-) of the battery U5.

[0043] In order to be able to adjust the cable length while supplying power, a winding motor M is further arranged; the input end of the winding motor M is connected with the output end of the input module 1; the winding motor M is controlled by a DC brushless motor controller, and a boat-shaped self-locking three-gear switch and a speed adjusting knob are further arranged for controlling the winding motor M.

[0044] The specific working principle of the above-mentioned secondary circuit temporary voltage transition management circuit is as follows:

[0045] The second AC relay KA1 or the second DC relay KA2 is controlled by the control unit U4 according to the current output requirement, for example, after button or touch screen operation on the remote control screen, the second wireless unit U3 sends a lora wireless signal, then the first wireless unit U1 receives the lora wireless signal, and triggers the second AC relay KA1 or the second DC relay KA2, and 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.

[0046] In summary, the application provides a kind of secondary circuit temporary voltage transition management circuit, by input module respectively with AC voltage and DC voltage input, then by switching module AC input unit and AC output unit are connected, and DC input unit and DC output unit are connected, so that switching module can be required according to the power supply demand of actual scene AC input unit and AC output unit are connected to carry out AC output, or DC input unit and DC output unit are connected to carry out DC output, to realize according to the demand switching AC or DC output.

[0047] The above is only the embodiment of the application, and does not limit the patent scope of the application, any equivalent transformation made by using the content of the specification and drawings, or directly or indirectly applied in related technical field, is also included in the patent protection scope of the application.

Claims

1. A secondary circuit temporary voltage transient management circuit, comprising: It includes an input module, an output module, and a switching module; The input module includes an AC input unit and a DC input unit. The AC input unit is used to input AC voltage, and the DC input unit is used to input DC voltage. The output module includes an AC output unit and a DC output unit. The AC output unit is used to output AC voltage, and the DC output unit is used to output DC voltage. The input terminal of the switching module is connected to the output terminal of the DC input unit, and the output terminal of the switching module is connected to the input terminal of the DC output unit; or, the input terminal of the switching module is connected to the output terminal of the AC input unit, and the output terminal of the switching module is connected to the input terminal of the AC output unit. The switching module includes a first AC relay and a first DC relay; The switching terminal of the first AC relay connects the AC input unit and the AC output unit, and the control terminal of the first AC relay is used to receive AC control signals and control the off state of the switching terminal. The switching terminal of the first DC relay connects the DC input unit and the DC output unit, and the control terminal of the first DC relay is used to receive DC control signals and control the off state of the switching terminal. The switching module also includes a first wireless unit, a power conversion unit, and a wireless controller; The input terminal of the power conversion unit is connected to the output terminal of the input module; The output terminal of the power conversion unit is connected to the power supply terminal of the first wireless unit; The first output terminal of the first wireless unit is connected to the control terminal of the first AC relay, and the second output terminal of the first wireless unit is connected to the control terminal 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.

2. A secondary circuit temporary voltage transient management circuit according to claim 1, wherein, The switching module also includes a second AC relay and a second DC relay; The control terminal of the second AC relay is connected to the first output terminal of the first wireless unit, and the switch terminal of the second AC relay is connected to the control terminal of the first AC relay. The control terminal of the second DC relay is connected to the second output terminal of the first wireless unit, and the switch terminal of the second DC relay is connected to the control terminal of the first DC relay.

3. A secondary circuit temporary voltage transient management circuit according to claim 1, wherein, The wireless controller includes a second wireless unit, a battery, and a control unit; The output terminal of the battery is connected to the power supply terminal of the second wireless unit and the power supply terminal of the control unit, respectively. The signal terminal of the control unit is connected to the signal terminal 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.

4. A secondary circuit temporary voltage transient management circuit according to claim 3, wherein, The wireless controller also includes a first switch and a first status indicator light; The output terminal of the battery is connected to one end of the first switch, and the other end of the first switch is connected to the power supply terminal of the first status indicator, the power supply terminal of the second wireless unit, and the power supply terminal of the control unit.

5. A secondary circuit temporary voltage transient management circuit according to claim 3 or 4, characterised in that, The wireless controller also includes a charging connector; The charging connector is connected with the input end of the battery.

6. A secondary circuit temporary voltage transient management circuit according to claim 1, wherein, A voltmeter is further included; The input end of the voltmeter is connected with the output end of the input module. The output end of the voltmeter is connected with the signal end of the first wireless unit.

7. A secondary circuit temporary voltage transient management circuit according to claim 1, wherein, The switching module further includes a second switch and a second status indicator light; The output end of the power conversion unit is connected with one end of the second switch, and the other end of the second switch is connected with the power supply end of the first wireless unit and the second status indicator light respectively.

8. The secondary circuit temporary voltage transient management circuit of claim 1, wherein, A winding motor is further included; The input end of the winding motor is connected with the output end of the input module.

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