Optimal power supply mode switching method and device for multi-source power supply system
Through a multi-source power supply system that works in concert with a modular plug and voltage sensor, automatic switching and abnormal isolation is achieved, solving the problems of low switching efficiency and insufficient safety in the existing technology, and improving the stability and safety of the power supply system.
Patent Information
- Application Number
- CN202510495309.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-07-22
AI Technical Summary
The switching process of existing multi-source power supply systems relies on manual operation or semi-automatic control, which has low efficiency, lagging response, insufficient safety, and lack of real-time monitoring and protection mechanisms, resulting in power supply interruption or equipment damage.
It adopts a modular design convenient plug and connection hole, combined with a push rod and a voltage sensor, to achieve automatic switching and abnormal isolation; integrates voltage sensors, temperature monitors and alarms to form a multi-level monitoring network to provide real-time feedback on the power supply status; configures insulating blocks and buffer capacitor groups to ensure electrical safety and power supply continuity.
Significantly reduce manual switching time, improve system response speed and operating reliability, ensure stable voltage supply of load equipment, reduce operation and maintenance costs, and adapt to variable environmental conditions.
Smart Images
Figure CN120357609A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of optimal power supply mode switching methods and devices for multi-source power supply systems, and in particular to an optimal power supply mode switching method and device for multi-source power supply systems. Background Art
[0002] With the diversified development of renewable energy, power supply systems are gradually adopting a multi-source hybrid power supply mode such as wind energy, solar energy, and commercial power. However, in the prior art, the switching process of multi-source power supply systems usually relies on manual operation or semi-automatic control, and there are problems such as low efficiency, response lag, and insufficient safety. For example, the output characteristics of different power generation methods are greatly affected by factors such as weather and load fluctuations. If the optimal power supply mode is not switched in time, power outages or equipment damage may occur. In addition, traditional switching devices lack a real-time monitoring and protection mechanism for voltage abnormalities. When the voltage of a certain power supply is unstable or exceeds the threshold, it is unable to automatically cut off the faulty line and switch to the standby power supply, which is likely to cause safety hazards. The plug-in structures in the prior art are mostly fixed, difficult to quickly adapt to different power generation interfaces, and lack intelligent data feedback and alarm functions, resulting in relatively high maintenance costs. Therefore, there is an urgent need for an optimal power supply mode switching device for multi-source power supply systems that can integrate functions such as automatic switching, real-time monitoring, abnormal alarm, and efficient heat dissipation, so as to improve the stability, safety, and operation and maintenance efficiency of the power supply system.
[0003] Therefore, we propose an optimal power supply mode switching method and device for multi-source power supply systems to solve the above problems. Summary of the Invention
[0004] The purpose of the present invention is to provide an optimal power supply mode switching method and device for multi-source power supply systems. Through the convenient plugs and connection holes with modular design, it can quickly be compatible with various power generation interfaces such as wind energy, solar energy, and commercial power, significantly reducing the manual switching operation time. The coordinated operation of the electric push rod and the voltage sensor realizes the automatic switching and abnormal isolation of the power supply line: when voltage fluctuations or overlimits are detected, the system quickly cuts off the faulty line and switches to the standby power supply, avoiding damage to load equipment caused by unstable voltage. In addition, the configuration of the insulating blocks and buffer capacitor groups on the outer wall of the power transmission line ensures electrical safety and power supply continuity during the switching process, effectively improving the response speed and operation reliability of the system, so as to solve the problems raised in the above background art.
[0005] To achieve the above object, the present invention provides the following technical solutions: An optimal power supply mode switching device for a multi-source power supply system, including a main box, a switching box is installed in the inner wall of the main box, a power supply line is arranged on one side of the switching box, and a power transmission line is installed on the other side of the switching box; An insulating block is installed on the outer wall of the transmission line, and a convenient plug is provided at one end of the transmission line. An electric push rod is provided on one side of the insulating block. One end of the electric push rod is provided with a connector, and a connection hole is provided on the outer wall of the connector. A voltage sensor is installed at the upper end of the connector, and a wire is provided at one end of the voltage sensor; One end of the wire is connected to an alarm. A temperature monitor is installed at the lower end of the alarm, and an air outlet is provided on one side of the temperature monitor.
[0006] In a further embodiment, the convenient plug is inserted into the inner wall of the connection hole. One end of the connection hole is provided with a wire connected to the switching box. A convenient plug is also provided at the transmission line, and it has the same structure as that at the power supply line.
[0007] In a further embodiment, a data display and a manual controller are provided at the front end of the switching box, and the data display is respectively connected to the alarm, the voltage sensor, and the fan at the air outlet.
[0008] In a further embodiment, the front end of the alarm is provided with upper and lower surfaces. The upper end is a voltage display, and the lower end is an alarm lamp. The fan at the air outlet is installed inside the alarm.
[0009] An optimal power supply mode switching device for a multi-source power supply system, comprising: S1. Multi-source access: Insert the power supply lines of power generation devices such as wind energy and solar energy into the connection holes of the switching box through convenient plugs, and connect the transmission lines to the load end; S2. Real-time monitoring: The voltage sensor continuously collects the input voltages of each connection hole, and the temperature monitor 17 detects the temperature inside the box; S3. Abnormality determination: If the voltage of a certain path exceeds the set threshold or the temperature exceeds the safe range, it is determined as an abnormal state; S4. Automatic switching: The electric push rod drives the connector to pull out the convenient plug of the abnormal line, the switching box switches to other normal power supply lines, and at the same time the alarm gives out a sound and light alarm; S5. Data feedback: The abnormal information is displayed on the data display in real time, and maintenance personnel can intervene and operate through the manual controller.
[0010] In a further embodiment, in the S1-S5 switching method, the system dynamically calculates the priority based on the real-time collected voltage data and the load demand, and preferentially switches to the power supply line with the highest voltage stability and the best power matching degree; when the wind power generation causes a voltage drop due to insufficient wind speed, it automatically switches to the solar energy or mains line to ensure continuous supply of the load power.
[0011] In a further embodiment, in S3, if all power supply lines are abnormal (such as continuous voltage overlimit or too high temperature), the switching box sequentially pulls out all convenient plugs through an electric push rod, cuts off the output of the transmission line, and at the same time, the buzzer of the alarm starts a high-frequency alarm, the alarm light switches to a red constant-on mode, and "total failure" is marked on the data display to prompt immediate maintenance.
[0012] In a further embodiment, in S2, the temperature monitor triggers different heat dissipation modes according to the temperature value inside the box: when the temperature reaches the first threshold (such as 50 °C), the fan at the air outlet runs at a low speed; if the temperature rises to the second threshold (such as 70 °C), the fan switches to the high-speed mode, and at the same time, a high-temperature warning pops up on the data display; if the temperature continues to rise to the third threshold (such as 90 °C), the system automatically cuts off the current power supply line and starts full heat dissipation.
[0013] In a further embodiment, in S5, the manual control logic is refined, and the manual controller provides three operation gears: "priority lock", "forced switch", and "reset"; for priority lock, a certain power supply line can be preset as a fixed priority, for example, locking the mains line at night; for forced switch, the target power supply line is directly selected through a physical button, ignoring the automatic determination result; for reset, the alarm status is cleared and the automatic switching program is restarted to restore the system default operation mode.
[0014] Compared with the prior art, the beneficial effects of the present invention are: First, in the present invention, through the modularized design of convenient plugs and connection holes, it can quickly be compatible with various power generation interfaces such as wind energy, solar energy, and mains electricity, significantly reducing the manual switching operation time. The coordinated work of the electric push rod and the voltage sensor realizes the automatic switching and abnormal isolation of the power supply line: when voltage fluctuations or overlimits are detected, the system quickly cuts off the faulty line and switches to the standby power supply, avoiding damage to load devices caused by unstable voltage. In addition, the configuration of the insulating block and the buffer capacitor group on the outer wall of the transmission line ensures electrical safety and power supply continuity during the switching process, effectively improving the response speed and operation reliability of the system; Second, in the present invention, a multi-level monitoring network is formed through the voltage sensor, temperature monitor, and alarm integrated in the device to real-time feedback the power supply status and environmental parameters. When the voltage is abnormal or the temperature exceeds the limit, the alarm light and the buzzer trigger sound and light warnings simultaneously, and at the same time, the abnormal data is displayed on the data display in real time, facilitating maintenance personnel to quickly locate the problem. The combination of the temperature monitor and the hierarchical heat dissipation strategy (such as low-speed / high-speed fan mode) can dynamically adjust the temperature rise inside the box and extend the life of electronic components. The redundant design of the manual controller further strengthens the flexibility of the system, supports manual intervention to cope with complex working conditions, and greatly reduces the operation and maintenance cost and the fault troubleshooting time; III. In the present invention, by highly integrating power supply switching, status monitoring, abnormal protection, and heat dissipation functions within the main box, a compact integrated solution is formed. Its adaptive switching logic can dynamically match the output characteristics of different power generation methods. For example, when there is insufficient sunlight, it preferentially switches to wind energy or mains power to ensure a stable supply of load power. The integration of the modular plug-in structure, intelligent decision-making algorithm, and hierarchical response mechanism enables the device to adapt to variable environmental conditions (such as extreme temperatures and voltage fluctuations), and is applicable to complex scenarios such as off-grid power stations and hybrid energy base stations, significantly improving the comprehensive efficiency and long-term stability of multi-source power supply systems. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a schematic diagram of the overall structure of a method for switching the optimal power supply mode of a multi-source power supply system and a device; Figure 2 FIG. is a schematic diagram of the structure at the insulating block of a method for switching the optimal power supply mode of a multi-source power supply system and a device; Figure 3 FIG. is a method for switching the optimal power supply mode of a multi-source power supply system and a device Figure 2 and the enlarged structure schematic diagram at position A in the device; Figure 4 FIG. is a schematic diagram of the structure at the convenient plug of a method for switching the optimal power supply mode of a multi-source power supply system and a device; Figure 5 FIG. is a schematic diagram of the structure at the switching box of a method for switching the optimal power supply mode of a multi-source power supply system and a device; Figure 6 FIG. is a schematic diagram of the structure at the alarm of a method for switching the optimal power supply mode of a multi-source power supply system and a device.
[0016] In the figure: 1, main box; 2, switching box; 3, power supply line; 4, transmission line; 5, insulating block; 6, convenient plug; 7, electric push rod; 8, connection hole; 9, connector; 10, voltage sensor; 11, wire; 12, data display; 13, manual controller; 14, alarm; 15, voltage display; 16, alarm lamp; 17, temperature monitor; 18, air vent. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plural" is two or more.
[0018] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0020] Please refer to Figure 1-6 , an optimal power supply mode switching and device for a multi-source power supply system, including a main box 1. A switching box 2 is installed inside the main box 1. The left side of the switching box 2 is connected to various power generation devices such as wind energy, solar energy, and commercial power through a power supply line 3, and the right side supplies power to the load end through a power transmission line 4. The specific functions and connection relationships of each component are as follows: For the power supply line 3 and the power transmission line 4, convenient plugs 6 are provided at the ends of both the power supply line 3 and the power transmission line 4, which can be inserted into the connection holes 8 on the side wall of the switching box 2. The convenient plugs 6 adopt a standardized interface design, support quick plugging and unplugging, and are adapted to the output interfaces of different power generation devices; an insulating block 5 is installed on the outer wall of the power transmission line 4, which is made of high-temperature resistant ceramic material to ensure avoiding the risk of electric arc or electric leakage during the plugging and unplugging process; The electric push rod 7 and the connector 9. The electric push rod 7 is fixed on the inner wall of the switching box 2, and one end thereof is rigidly connected to the connector 9 through a threaded structure. The electric push rod 7 is internally provided with a stepper motor. After receiving the abnormal signal of the voltage sensor 10 or the temperature monitor 17, it drives the connector 9 to move axially, pulls out the convenient plug 6 from the connection hole 8. The displacement stroke of the connector 9 is 3 - 5 cm, and a limit switch is provided at the end to ensure accurate operation in place; The voltage sensor 10 and the alarm system. The voltage sensor 10 is embedded in the connection hole 8 to detect the input voltage in real time. If the voltage exceeds the preset threshold, such as overvoltage of 250 V or undervoltage of 180 V, the sensor signal is transmitted to the alarm 14 through the wire 11; The front end of the alarm 14 is divided into upper and lower parts: the upper end is the voltage display 15, which displays the voltage values of each line in real time; the lower end is the alarm light 16, which switches to the red flashing mode and triggers the buzzer alarm when abnormal; Temperature monitoring and heat dissipation system. The temperature monitor 17 is attached to the surface of the circuit board on the inner wall of the switching box 2 to collect the temperature inside the box in real time. When the temperature reaches 50 °C, the fan at the air outlet 18 starts in the low-speed mode of 1200 rpm; if the temperature rises to 70 °C, the fan switches to the high-speed mode of 3000 rpm; when the temperature exceeds 90 °C, the system automatically cuts off the current power supply line and triggers a full alarm; The heat dissipation air flow path of the air outlet 18 is designed as an "S"-shaped air duct to extend the air residence time to improve the heat dissipation efficiency; The human-computer interaction module. A data display 12 and a manual controller 13 are installed at the front end of the switching box 2. The data display 12 is linked with the alarm 14, the voltage sensor 10 and the fan, and displays the voltage, temperature and power supply line status in real time; The manual controller 13 provides three functions: Priority lock: A certain power supply line 3 can be preset as a fixed priority, such as locking the mains at night; Forced switching: Directly select the target line through the physical button; Reset: Clear the alarm status and restart the automatic switching program.
[0021] The working principle of the present invention is as follows: As shown in the figure, it includes a main body 1, which is the main base of the whole device and is set around this main body 1 during use. Among them, a crushing cylinder 2 is provided at the upper end of the main body 1. Two sets of crushing rollers 5 are provided inside the crushing cylinder 2. The upper crushing roller 5 first crushes the larger pieces of heparin sodium to make them into small pieces, and then drops to the lower crushing roller 5 for further crushing into a smaller state; And a connecting cylinder 3 is provided at the upper end of the crushing cylinder 2 for connecting the feeding cylinder 4. After the heparin sodium is poured from the upper opening into the feeding cylinder 4, it will slide on the inner wall of the feeding cylinder 4. The inner wall is provided with a heating inner wall 6. Through the sliding of the heparin sodium, it is dried. And a leakage port 7 is provided at one end of the heating inner wall 6 to collect the undried moisture into the outer connecting pipe 8 at the lower end to avoid accumulation therein; When heparin sodium slips off, it will be guided through the connecting cylinder 3 into the crushing cylinder 2 for crushing, and then it will fall all the way to the discharge port 9 provided at the inner wall of the main body 1, and then be recycled by the receiving plate 10.
[0022] An optimal power supply mode switching method for a multi-source power supply system, and the specific implementation process of the power supply mode switching method: Multi-source access and initialization configuration: Insert the power supply lines (3) of power generation equipment such as wind energy and solar energy into the connection holes 8 of the switching box 2 through the convenient plugs 6, connect the power transmission line 4 to the load equipment, set the power supply priority (such as solar energy > wind energy > commercial power) through the manual controller 13, and input voltage thresholds, temperature limits, and capacity parameters of the buffer capacitor bank; Real-time monitoring and dynamic decision-making: The voltage sensor 10 samples the voltages of each line at a period of 100 ms, and the temperature monitor 17 uploads the temperature inside the box at a period of 1 s. The system dynamically calculates the priority based on the real-time data: preferentially select the line with a voltage fluctuation less than ±5% and the highest power matching degree. For example, when the output of solar energy decreases due to cloudy days, it automatically switches to the wind energy or commercial power line; Abnormal response and automatic switching, voltage abnormal handling: If the voltage of a certain line exceeds the limit, the electric push rod 7 immediately drives the connector 9 to pull out the corresponding convenient plug 6, and at the same time, the buffer capacitor bank provides temporary power supply for 0.1 to 0.5 seconds to ensure that the load equipment does not restart due to power failure. Temperature overlimit handling: The temperature monitor 17 triggers a hierarchical heat dissipation strategy. If the temperature continues to rise to 90 °C, the system cuts off all power supply lines and triggers a full alarm (the alarm light 16 turns red and stays on constantly, and the buzzer sounds continuously); Manual intervention and maintenance: Maintenance personnel view the historical fault records (such as voltage fluctuation curves, temperature rise data) through the data display 12, use the manual controller 13 to perform forced switching or reset operations. After the maintenance is completed, reconnect the power supply, and the system resumes the automatic operation mode.
[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0024] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An optimal power supply mode switching device for a multi-source power supply system, characterized in that: It includes a main box (1), in the inner wall of the main box (1), a switching box (2) is installed. One side of the switching box (2) is provided with a power supply line (3), and on the other side of the switching box (2), a power transmission line (4) is installed; On the outer wall of the power transmission line (4), an insulating block (5) is installed. At one end of the power transmission line (4), a convenient plug (6) is provided. On one side of the insulating block (5), an electric push rod (7) is provided. At one end of the electric push rod (7), a connection head (9) is provided. And on the outer wall of the connection head (9), a connection hole (8) is provided. On the upper end of the connection head (9), a voltage sensor (10) is installed. At one end of the voltage sensor (10), a wire (11) is provided; One end of the wire (11) is connected to an alarm (14). At the low end of the alarm (14), a temperature monitor (17) is installed. And on one side of the temperature monitor (17), an air outlet (18) is provided.
2. The optimal power supply device of a multi-source power supply system according to claim 1, characterized in that: The convenient plug (6) is inserted into the inner wall of the connection hole (8). One end of the connection hole (8) is provided with an electric wire connected to the switching box (2). And at the power transmission line (4), a convenient plug (6) is also provided, with the same structure as that at the power supply line (3).
3. The optimal power supply device of a multi-source power supply system according to claim 1, characterized in that: At the front end of the switching box (2), a data display (12) and a manual controller (13) are provided. And the data display (12) is respectively connected to the alarm (14), the voltage sensor (10), and the fan at the air outlet (18).
4. The optimal power supply device for a multi-source power supply system according to claim 1, characterized in that: At the front end of the alarm (14), there are upper and lower two sides. The upper end is a voltage display (15), and the lower end is an alarm lamp (16). And the fan at the air outlet (18) is installed in the inner wall of the alarm (14).
5. An optimal power supply mode switching method for a multi-source power supply system, characterized in that: The optimal power supply mode switching method of this device includes the following steps: S1. Multi-source access: Insert the power supply line (3) of power generation devices such as wind energy and solar energy into the connection hole (8) of the switching box (2) through the convenient plug (6), and the power transmission line (4) is connected to the load end; S2. Real-time monitoring: The voltage sensor (10) continuously collects the input voltage of each connection hole (8), and the temperature monitor (17) detects the temperature inside the box; S3. Abnormality determination: If the voltage of a certain path exceeds the set threshold, or the temperature exceeds the safe range, it is determined as an abnormal state; S4. Automatic switching: The electric push rod (7) drives the connection head (9) to pull out the convenient plug (6) of the abnormal line, the switching box (2) switches to other normal power supply lines, and at the same time, the alarm (14) issues an audible and visual alarm; S5. Data feedback: The abnormal information is displayed on the data display (12) in real time, and maintenance personnel can intervene and operate through the manual controller (13).
6. The optimal power supply mode switching method for a multi-source power supply system according to claim 5, characterized in that: In the switching method of S1 - S5, the system dynamically calculates the priority based on the real-time collected voltage data and load requirements, and preferentially switches to the power supply line with the highest voltage stability and the best power matching degree; when the wind power generation causes the voltage to drop due to insufficient wind speed, it automatically switches to the solar energy or mains power line to ensure continuous supply of the load power.
7. The optimal power supply mode switching method for a multi-source power supply system according to claim 5, characterized in that: In step S3, if all power supply lines are abnormal (such as continuous voltage overlimit or too high temperature), the switching box (2) pulls out all the convenient plugs (6) in sequence through the electric push rod (7), cuts off the output of the power transmission line (4), and at the same time, the buzzer of the alarm (14) starts a high-frequency alarm, the alarm light (16) switches to the red constant-on mode, and "Total Failure" is marked on the data display (12) to prompt immediate maintenance.
8. The optimal power supply mode switching method for a multi-source power supply system according to claim 5, characterized in that: In step S2, the temperature monitor (17) triggers different heat dissipation modes according to the temperature value inside the box: when the temperature reaches the first threshold (such as 50 °C), the fan at the air outlet (18) runs at a low speed; if the temperature rises to the second threshold (such as 70 °C), the fan switches to the high-speed mode, and at the same time, a high-temperature warning pops up on the data display (12); if the temperature continues to rise to the third threshold (such as 90 °C), the system automatically cuts off the current power supply line and starts full-scale heat dissipation.
9. The optimal power supply mode switching method for a multi-source power supply system according to claim 5, characterized in that: In step S5, the manual control logic is refined, and the manual controller (13) provides three operation gears: "Priority Lock", "Forced Switch", and "Reset"; for priority lock, a certain power supply line (3) can be preset as the fixed priority, for example, locking the mains line at night; for forced switch, the target power supply line can be directly selected through the physical button, ignoring the automatic determination result; for reset, the alarm status is cleared and the automatic switching program is restarted to restore the system default operation mode.