Remote control and time-sharing starting control circuit
By designing remote control and time-sharing start-up control circuits, the problem of inconsistent AC and DC power supply demand and excessive current in large electronic facilities systems is solved, and remote control and time-sharing start-up of multiple load circuits is realized, improving the System security and operational convenience.
Patent Information
- Application Number
- CN202420908323.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-04-25
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
In large electronic facility systems, the different requirements for AC and DC power supply are caused by inconsistent equipment management. At the same time, the current is too high when multiple equipment starts at the same time, which poses safety hazards. The layout of the equipment is affected by space and environment, making it inconvenient to operate.
Design a remote control and time-sharing start-up control circuit, including DC and AC distribution circuits. The remote control circuit receives external signals, and starts each output port in turn through the time-sharing start-up circuit, and realizes the time-sharing of the power supply using the optocoupler and the driver chip. Control to avoid current shock.
Remote control and time-sharing start of multiple load circuits is realized, avoiding the impact of excessive current on the distribution system, improving safety and operation convenience, and meeting the power supply needs of multiple loads.
Smart Images
Figure CN222191915U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of automatic power distribution, and more specifically, to a control circuit for remote control and time-sharing start-up. Background Art
[0002] In some large electronic facilities, the power supply requirements of electrical equipment are different. Some require AC 220V / 50Hz mains power supply, while others require DC 28V power supply. Due to the different power supplies, the power supply equipment selected is different, and unified management cannot be achieved. In addition, there are many electronic equipment, and when they are powered on at the same time, the starting current is too large, which will cause an impact on the overall power distribution system and pose a safety hazard. In addition, the layout of some electronic equipment is affected by space and environment, which is not conducive to on-site operation. Summary of the invention
[0003] The present invention is to solve the problems of remote control and time-sharing start-up of AC and DC unified power distribution, protect the power supply and distribution system, and provide a control circuit for remote control and time-sharing start-up of power supply and distribution for each electrical equipment.
[0004] In order to achieve the above objectives, the technical solutions adopted in this disclosure are as follows:
[0005] A control circuit for remote control and time-sharing start-up, comprising the following circuits;
[0006] A DC power distribution circuit, used for outputting multiple DC power distribution output ports;
[0007] AC power distribution circuit, used for outputting multiple AC power distribution output ports;
[0008] A remote control circuit receives an external control signal and controls a time-sharing start circuit;
[0009] A time-sharing starting circuit receives a control signal from a remote control circuit and sequentially starts each output port of a DC power distribution circuit and / or each output port of an AC power distribution circuit in a time-sharing manner;
[0010] A DC power supply circuit, used for providing a DC power supply;
[0011] An AC power circuit, used for providing AC power;
[0012] The remote control circuit is connected to the DC power distribution circuit and the AC power distribution circuit respectively through the time-sharing starting circuit; the DC power supply circuit is connected to the DC power distribution circuit, and the AC power supply circuit is connected to the AC power distribution circuit.
[0013] Optionally, the time-sharing startup circuit includes a controller and a plurality of first driver chips, the controller is connected to each first driver chip, and each first driver chip is connected to at least one optocoupler control circuit;
[0014] The optocoupler control circuits have the same structure, and both include a first optocoupler and a socket control circuit. The first driver chip is connected to the socket control circuit via the first optocoupler, and the socket control circuit is connected to the DC power distribution circuit or the AC power distribution circuit.
[0015] Optionally, the plurality of first optical couplers are integrated into an optical coupler module.
[0016] Optionally, the remote control circuit includes a second optocoupler and a second driver chip, and the external control signal is connected to the controller after passing through the second optocoupler and the second driver chip.
[0017] Optionally, two of the second optocoupler and the second driver chip are provided, wherein one group of the second optocoupler and the second driver chip is used to receive a DC control signal and transmit it to the controller, and the other group of the second optocoupler and the second driver chip is used to receive an AC control signal and transmit it to the controller.
[0018] Optionally, the second driver chip and one of the first driver chips share the same driver chip.
[0019] Optionally, the DC power distribution circuit includes a plurality of DC socket circuits, each of which is connected to the time-sharing starting circuit;
[0020] The DC socket circuit includes a DC relay, a DC fuse and a DC socket. The time-sharing starting circuit is connected to the DC socket through the DC relay and the DC fuse in sequence. A DC indicator light is also connected in parallel to the DC socket. The multiple socket control circuits in the time-sharing starting circuit are connected one-to-one with the control ends of the multiple DC relays.
[0021] Optionally, the AC power distribution circuit includes a plurality of AC socket circuits, each of which is connected to the time-sharing starting circuit;
[0022] The AC socket circuit includes an AC relay, a first circuit breaker and an AC socket. The time-sharing starting circuit is connected in sequence through the AC relay, the first circuit breaker and the AC socket. Each AC socket is also connected to an AC indicator light. The multiple socket control circuits in the time-sharing starting circuit are connected one-to-one with the control ends of the multiple AC relays.
[0023] Optionally, the AC power supply circuit includes a second circuit breaker, a third circuit breaker and a power surge protector, the external AC power supply is connected to the controlled end of each AC relay after passing through the second circuit breaker, and the third circuit breaker is connected to the power surge protector and then grounded.
[0024] The present invention provides a remote control circuit for remotely switching on and off DC power distribution output ports and AC power distribution output ports, and a time-sharing starting circuit for sequentially starting each output port of the DC distribution circuit and / or each output port of the AC distribution circuit in a time-sharing manner, so as to avoid safety hazards caused by excessive starting current on the overall power distribution system when multiple devices are powered on at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 The figure is a schematic diagram of the structure of the control circuit for remote control and time-sharing start-up disclosed in the present invention.
[0027] Figure 2 The circuit principle of the control circuit for remote control and time-sharing start in the present disclosure Figure 1 .
[0028] Figure 3 The circuit principle of the control circuit for remote control and time-sharing start in the present disclosure Figure 2 .
[0029] Figure 4 The circuit principle of the remote control circuit and the optocoupler control circuit in the present disclosure is Figure 1 .
[0030] Figure 5 The circuit principle of the optocoupler control circuit in this disclosure is Figure 2 .
[0031] Figure 6 The circuit principle of the optocoupler control circuit in this disclosure is Figure 3 . DETAILED DESCRIPTION
[0032] The preferred embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present disclosure can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present disclosure.
[0033] See also Figure 1As shown, a control circuit for remote control and time-sharing start-up includes a DC power distribution circuit 1, an AC power distribution circuit 2, a remote control circuit 3, a time-sharing start-up circuit 4, a DC power supply circuit 5, and an AC power supply circuit 6; the remote control circuit 3 is connected to the DC power distribution circuit 1 and the AC power distribution circuit 2 respectively through the time-sharing start-up circuit 4; the DC power supply circuit 1 is connected to the DC distribution circuit 1, and the AC power supply circuit 2 is connected to the AC power distribution circuit 2;
[0034] The DC power distribution circuit 1 is used to output multiple DC power distribution output ports, which can be sockets or direct line outputs, and can be used as power sources for multiple DC power-consuming devices;
[0035] The AC power distribution circuit 2 is used to output multiple AC power distribution output ports, which can be sockets or direct line outputs, and can be used as power sources for multiple AC power-consuming devices;
[0036] The remote control circuit 3 is used to receive an external control signal and control the time-sharing start circuit 4 according to the control signal, which may include a control signal for controlling the opening of the DC power distribution output port, an AC control signal for controlling the opening of the DC power distribution output port, etc.;
[0037] The time-sharing starting circuit 4 is used to receive the control signal of the remote control circuit 3, and start each output port of the DC power distribution circuit 1 and / or each output port of the AC power distribution circuit 2 in turn in a time-sharing manner;
[0038] The DC power supply circuit 5 is used to provide a DC power supply, which may be an external DC power supply or a UPS, etc. The DC power supply circuit 5 may also provide a DC power supply to a controller in the device.
[0039] The AC power supply circuit 6 is used to provide AC power, which can be an external AC power supply or a UPS, etc.;
[0040] See also Figure 2 , Figure 3 As shown, the time-sharing start circuit includes a controller A2 and a plurality of first driver chips (D2-D4), the controller A2 is connected to each first driver chip (D2-D4), and each first driver chip (D2-D4) is connected to at least one optocoupler control circuit; the controller A2 can adopt a development board of STM32F103ZET6, wherein the written control program can drive the optocoupler control circuit to be powered on in sequence, and finally control the DC power supply circuit 1 and / or the AC power supply circuit 2 to be powered on in sequence in sequence. The written control program is a prior art, and a person with programming ability can easily realize the function, and will not be repeated here.
[0041] See also Figures 4 to 6As shown, the optocoupler control circuit structure can be the same, both including a first optocoupler and a socket control circuit, multiple first optocouplers can be integrated in an optocoupler module (D5-D10), the first driver chip (D2-D4) is connected to the socket control circuit through the first optocoupler, and the socket control circuit is connected to the DC distribution circuit 1 or the AC distribution circuit 2.
[0042] In another specific embodiment, see Figure 4 as well as Figure 2 , Figure 3 As shown, the remote control circuit 3 includes a second optocoupler and a second driver chip, and two of the second optocoupler and the second driver chip are provided, wherein one group of the second optocoupler and the second driver chip is used to receive a DC control signal and transmit it to the controller as a control signal for powering on and off the DC line, and another group of the second optocoupler and the second driver chip is used to receive an AC control signal and transmit it to the controller as a control signal for powering on and off the AC line. The external control signal is connected to the controller A2 after passing through the second optocoupler and the second driver chip. The second driver chip and one of the first driver chips share the same driver chip D2. The integrated module can reduce costs and improve wiring efficiency. The driver chip can use 54LS244, which is an 8-way in-phase three-state line driver, which can enhance the driving current of the circuit.
[0043] There are two types of photocouplers, TH281-4 and TH627-4. Photocouplers have strong anti-interference capabilities and can achieve electrical isolation between the input and output ends. The photocoupler module D1 uses TH281-4, and the photocoupler modules (D5-D10) use TH627-4.
[0044] In a specific implementation, the DC power distribution circuit 1 includes a plurality of DC socket circuits, each of which is connected to the time-sharing starting circuit 4;
[0045] The DC socket circuit includes a DC relay (K1-K11), a DC fuse (F3-F13) and a DC socket. The time-sharing start circuit 4 is connected to the DC socket through the DC relay (K1-K11) and the DC fuse (F3-F13) in sequence. The DC socket is also connected in parallel with a DC indicator light (HL3-HL13). The multiple socket control circuits in the time-sharing start circuit 4 are connected to the control ends of the multiple DC relays (K1-K11) in a one-to-one correspondence. Each DC relay (K1-K11) controls a socket control circuit, and finally controls a DC socket to be powered on.
[0046] In another embodiment, the AC power distribution circuit 2 includes a plurality of AC socket circuits, each of which is connected to the time-sharing start circuit 4;
[0047] The AC socket circuit 4 includes an AC relay (K12-K22), a first circuit breaker (Q5-Q15) and an AC socket. The time-sharing start circuit 4 is connected in sequence through the AC relay (K12-K22), the first circuit breaker (Q5-Q15) and the AC socket, and each AC socket is also connected with an AC indicator light (HL16-HL26); the multiple socket control circuits in the time-sharing start circuit 4 are connected to the control ends of the multiple AC relays (K12-K22) in a one-to-one correspondence. Each AC relay (K12-K22) controls a socket control circuit, and finally controls an AC socket to be energized.
[0048] See also Figure 3 As shown, the AC power supply circuit 6 includes a second circuit breaker Q1, a third circuit breaker Q2 and a power surge protector F1. The external AC power is connected to the input port of each AC relay (K12-K22) through the second circuit breaker Q1. The second circuit breaker Q1 is also grounded through the third circuit breaker Q2 and the power surge protector F1 in sequence. The first circuit breaker and the second circuit breaker can both be residual current operated circuit breakers. It has a lightning protection function. When the AC power phase line or neutral line is struck by lightning (or power surge), the power input can be automatically cut off.
[0049] After the remote control circuit 3 gives the control voltage of "AC power-on" or "DC power-on", the 28V control voltage is converted into a low level of a digital signal through the action of the photocoupler TH281-4. The low level is then driven by the circuit 54LS244, and the program of the controller A2 is activated. According to the set logical relationship, the low level valid signals are output in sequence in time-sharing, and these signals are returned to the input end of the circuit 54LS244 respectively. The output end of the circuit 54LS244 is connected to the photocoupler TH627-4. One circuit 54LS244 can drive two photocouplers TH627-4. In this example, three 54LS244s and six photocouplers TH627-4 are set as an example. They are turned on in sequence in a logical order, and the DC electromagnetic relays connected in series of the 11 AC branches and 11 DC branches controlled are attracted, and the corresponding branch routes are turned on. Each branch is powered on in time and starts to work normally.
[0050] The purpose of this disclosure is to help operators remotely turn on and off equipment. In particular, when equipment fails, remote operation can be quickly implemented to reduce losses; power supply time-sharing startup is realized. After receiving the remote control signal, each power supply channel of the same type can be connected in sequence according to the control logic, and the time for all power supply channels of the same type to be connected is no more than 10s, to avoid the impact of excessive starting current on the overall power distribution system when multiple devices are powered on at the same time, which may cause safety hazards; multiple AC outputs and multiple DC outputs are realized to meet the distribution of various load circuits;
[0051] Although the embodiments of the present disclosure are described in conjunction with the accompanying drawings, the patent owner may make various variations or modifications within the scope of the appended claims. As long as they do not exceed the protection scope described by the claims of the present disclosure, they should be within the protection scope of the present disclosure.
Claims
1. A control circuit for remote control and time-sharing start, characterized in that: Includes the following circuits; A DC power distribution circuit, used for outputting multiple DC power distribution output ports; AC power distribution circuit, used for outputting multiple AC power distribution output ports; A remote control circuit receives an external control signal and controls a time-sharing start circuit; A time-sharing starting circuit receives a control signal from a remote control circuit and sequentially starts each output port of a DC power distribution circuit and / or each output port of an AC power distribution circuit in a time-sharing manner; A DC power supply circuit, used for providing a DC power supply; An AC power circuit, used for providing AC power; The remote control circuit is connected to the DC power distribution circuit and the AC power distribution circuit respectively through the time-sharing starting circuit; the DC power supply circuit is connected to the DC power distribution circuit, and the AC power supply circuit is connected to the AC power distribution circuit.
2. The control circuit for remote control and time-sharing start-up according to claim 1, characterized in that: The time-sharing startup circuit includes a controller and a plurality of first driver chips, the controller is connected to each first driver chip, and each first driver chip is connected to at least one optocoupler control circuit; The optocoupler control circuits have the same structure, and both include a first optocoupler and a socket control circuit. The first driver chip is connected to the socket control circuit via the first optocoupler, and the socket control circuit is connected to the DC power distribution circuit or the AC power distribution circuit.
3. The control circuit for remote control and time-sharing start-up according to claim 2, characterized in that: The plurality of first optical couplers are integrated into an optical coupler module.
4. The control circuit for remote control and time-sharing start-up according to claim 1, characterized in that: The remote control circuit comprises a second optical coupler and a second driver chip, and an external control signal is connected to the controller after passing through the second optical coupler and the second driver chip.
5. The control circuit for remote control and time-sharing start-up according to claim 4, characterized in that: There are two of each of the second optocoupler and the second driver chip, one group of which is used to receive a DC control signal and transmit it to the controller, and the other group of which is used to receive an AC control signal and transmit it to the controller.
6. The control circuit for remote control and time-sharing start-up according to claim 4, characterized in that: The second driver chip shares a same driver chip with one of the first driver chips.
7. The control circuit for remote control and time-sharing start-up according to claim 2, characterized in that: The DC power distribution circuit includes a plurality of DC socket circuits, each of which is connected to the time-sharing starting circuit; The DC socket circuit includes a DC relay, a DC fuse and a DC socket. The time-sharing starting circuit is connected to the DC socket through the DC relay and the DC fuse in sequence. A DC indicator light is also connected in parallel to the DC socket. The multiple socket control circuits in the time-sharing starting circuit are connected one-to-one with the control ends of the multiple DC relays.
8. The control circuit for remote control and time-sharing start-up according to claim 2, characterized in that: The AC power distribution circuit includes a plurality of AC socket circuits, each of which is connected to the time-sharing start circuit; The AC socket circuit includes an AC relay, a first circuit breaker and an AC socket. The time-sharing starting circuit is connected in sequence through the AC relay, the first circuit breaker and the AC socket. Each AC socket is also connected to an AC indicator light. The multiple socket control circuits in the time-sharing starting circuit are connected one-to-one with the control ends of the multiple AC relays.
9. The control circuit for remote control and time-sharing start-up according to claim 8, characterized in that: The AC power supply circuit includes a second circuit breaker, a third circuit breaker and a power surge protector. The external AC power supply is connected to the controlled end of each AC relay after passing through the second circuit breaker. The third circuit breaker is connected to the power surge protector and then grounded.