Quick-response power supply switching control module

Abstract

The utility model relates to the field of power electronics, in particular to a quick-response power supply switching control module, which comprises a power supply conversion unit, a manual switching unit and a load driving unit. According to the utility model, a switching circuit composed of a relay JK1, a contactor JK2 and a contactor JK3 is used and controlled by a controller S1 and a controller S2. When the controller S1 and the controller S2 are open-circuited, a contact 3-5 of the relay JK1 is closed, XQ1 + is connected to a 24V power supply, the contactor JK2 is closed, and the output is Out-1. And when the controller S1 and the controller S2 are short-circuited, a contact 3-4 of the relay JK1 is closed, XQ2 + is connected to a 24V power supply, the contactor JK3 is closed, and the output is Out-2. The control circuit controls the on-off of the current of the main circuit, the power supply and the load are isolated through the relay, the risk of circuit faults is reduced, the operation safety is ensured, meanwhile, the circuit complexity is reduced, the overall size is reduced, and the space utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the field of power electronics, and particularly to a power supply switching control module with fast response. Background Art

[0002] At present, large fishing boats generally use fish attracting lights to attract fish schools. In order to adapt to the visual characteristics of different types of fish, the fish attracting lights usually use white or red light sources. The power supply system is powered by a generator and is converted by a DC power supply module to supply power to the lights. Given the very limited space on the ship, the power supply method adopts a centralized design, and usually each light is equipped with an independent power supply module to ensure the stability and reliability of the system.

[0003] However, considering the large number of fish attracting lights on the ship and the two colors, during fishing, usually only one color of light can be turned on for different types of fish schools. If each light is equipped with a separate DC power supply module, it will occupy a large amount of space and increase costs. In addition, during fishing operations, it is crucial to quickly switch the light color according to the change of the target fish school, because the length of the switching time directly affects the number of fish schools caught.

[0004] To solve the above problems, a power supply switching control module with fast response is proposed. This module can divide the single DC power output into two paths and quickly switch between them, so that a single power supply module can support two-color lights at the same time. In this way, users can complete the switching of the light color within one second, thus meeting the rapidly changing fishing requirements. The core of this solution lies in the efficient switching circuit, which not only reduces the number of required power supply modules, saves space, reduces costs, but also realizes the rapid switching of lights and improves fishing efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a power supply switching control module with fast response to solve the problems of low voltage equalization accuracy and high energy consumption of the passive equalization circuit in the above background art.

[0006] The utility model provides the following technical solutions. A power supply switching control module with fast response includes: a power conversion unit, a manual switching unit, and a load driving unit. The power conversion unit is connected in parallel with the manual switching unit and the load driving unit, where:

[0007] The manual switching unit includes a controller S1, a controller S2, and a control circuit. The controller S1 is connected to terminal X2 port 1. Terminal X2 port 2 is connected to the controller S2. The controller S2 is connected to the cathode of diode D3. The anode of diode D3 is connected to relay JK1 contact 1, and is also connected to the anode of diode D4 and the negative electrode of electrolytic capacitor CD3. Relay JK1 contact 2 is connected to resistor R1 and the negative electrode of electrolytic capacitor CD2. The other end of resistor R1 is connected to the positive pole of switching power supply M1. Relay JK1 contact 3 is connected to the positive pole of switching power supply M1. Relay JK1 contact 4 is connected to path XQ2+. Relay JK1 contact 5 is connected to path XQ1+.

[0008] As a further improvement of this technical solution, the power conversion unit is provided with a switching power supply M1. The switching power supply M1 is an AC 220V to DC 24V power supply. The AC side of the switching power supply M1 is connected to the zero line and the live line. The positive pole of the DC side of the switching power supply M1 is connected to the positive electrode of electrolytic capacitor CD1. The negative pole of the DC side of the switching power supply M1 is connected to the negative electrode of electrolytic capacitor CD1. The DC side of the switching power supply M1 is connected in parallel with the manual switching unit and the load driving unit.

[0009] As a further improvement of this technical solution, the load driving unit includes a load driving end 1 and a load driving end 2. Diode D2 is provided at the load driving end 1. The cathode of diode D2 is connected to path XQ1+ and is also connected to capacitor C2. The anode of diode D2 is connected to the positive pole of switching power supply M1. Diode D1 is provided at the load driving end 2. The cathode of diode D1 is connected to path XQ2+ and is also connected to capacitor C1. The anode of diode D1 is connected to the positive pole of switching power supply M1.

[0010] As a further improvement of this technical solution, path XQ1+ is connected to contactor JK2 contact 2. Contactor JK2 contact 1 is connected to path XQ1-. Contactor JK2 contacts 3 and 4 are connected to output path Out-1. Path XQ2+ is connected to contactor JK3 contact 2. Contactor JK3 contact 1 is connected to path XQ3-. Contactor JK3 contacts 3 and 4 are connected to output path Out-2.

[0011] As a further improvement of this technical solution, the output path Out-1, the output path Out-2, and the output path OUT+ are all connected to a DC power supply.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. In this fast-response power switching control module, a switching circuit composed of a relay JK1, a contactor JK2, and a contactor JK3 is used. The controller S1 and the controller S2 control the contact of the relay JK1 to be attracted, changing the current direction. When the current flows to the contactor JK2, the contactor JK2 is attracted. When the current flows to the contactor JK3, the contactor JK3 is attracted, achieving fast and reliable power switching. This enables a single power module to support two different-color lamps and complete the switching within one second. At the same time, the number of required power modules is reduced, saving space and cost.

[0014] 2. In this fast-response power switching control module, 24V direct current is used as the control signal. The relay isolates the power supply and the load, realizing the control of a high-voltage and large-current circuit by a low-voltage and small-current circuit, simplifying the overall circuit, reducing the risk of circuit failures, and enhancing the safety, stability, and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the relay circuit of the present utility model;

[0017] Figure 3 is a schematic diagram of the output terminal circuit of the present utility model; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0020] To describe the technical content, structural features, achieved objectives, and effects of the present invention in detail, the following is described in detail in conjunction with the embodiments and with reference to the drawings.

[0021] Please refer to Figures 1-3 , an embodiment provided by the present utility model:

[0022] A fast-response power switching control module includes: a power conversion unit, a manual switching unit, and a load driving unit. The power conversion unit is connected in parallel with the manual switching unit and the load driving unit, where:

[0023] The manual switching unit includes a controller S1, a controller S2, and a control circuit. The controller S1 is connected to terminal X2 port 1, terminal X2 port 2 is connected to the controller S2, the controller S2 is connected to the cathode of diode D3, the anode of diode D3 is connected to relay JK1 contact 1 and is also connected to the anode of diode D4 and the negative electrode of electrolytic capacitor CD3. Relay JK1 contact 2 is connected to resistor R1 and is also connected to the negative electrode of electrolytic capacitor CD2. The other end of resistor R1 is connected to the positive electrode of switching power supply M1. Relay JK1 contact 3 is connected to the positive electrode of switching power supply M1. Relay JK1 contact 4 is connected to path XQ2+. Relay JK1 contact 5 is connected to path XQ1+. The function of diode D3 is to prevent reverse connection when multiple groups of controls are in parallel. Resistor R1, electrolytic capacitor CD2, and electrolytic capacitor CD3 can form an RC time constant to smooth the control signal and reduce jitter during switching. Diode D4 is used to prevent reverse current. The states of controller S1 and controller S2 determine the working mode of relay JK1. When controller S1 and controller S2 are open, contacts 3-5 of relay JK1 are closed, enabling the 24V power supply to supply the contactor JK2 through path XQ1+; conversely, when controller S1 and controller S2 are shorted, contacts 3-4 of relay JK1 are closed, and the 24V power supply supplies the contactor JK3 through path XQ2+. The suction times of relay JK1, contactor JK2, and contactor JK3 are all less than 50ms, allowing for fast switching of the lights.

[0024] The power conversion unit is provided with a switching power supply M1. The switching power supply M1 converts AC 220V to DC 24V power. The AC side of the switching power supply M1 is connected to the zero line and the live line. The positive electrode of the DC side of the switching power supply M1 is connected to the positive electrode of electrolytic capacitor CD1, and the negative electrode of the DC side of the switching power supply M1 is connected to the negative electrode of electrolytic capacitor CD1. The DC side of the switching power supply M1 is connected in parallel with the manual switching unit and the load driving unit. This unit contains a switching power supply M1 for converting the AC 220V input voltage into a DC 24V output voltage. The AC side of the switching power supply M1 is directly connected to the live line and the zero line of the power grid. The DC side is filtered through electrolytic capacitor CD1 and is respectively connected to the manual switching unit and the load driving unit.

[0025] The load driving unit includes load driving terminal 1 and load driving terminal 2. A diode D2 is provided at load driving terminal 1. The cathode of diode D2 is connected to path XQ1+ and is connected in parallel with capacitor C2. The anode of diode D2 is connected to the positive pole of switching power supply M1. A diode D1 is provided at load driving terminal 2. The cathode of diode D1 is connected to path XQ2+ and is connected in parallel with capacitor C1. The anode of diode D1 is connected to the positive pole of switching power supply M1. Diodes D1 and D2 are used to protect the circuit against reverse current, and capacitors C1 and C2 are used for filtering and energy storage.

[0026] Path XQ1+ is connected to contact 2 of contactor JK2. Contact 1 of contactor JK2 is connected to path XQ1-. Contacts 3 and 4 of contactor JK2 are connected to output path Out-1. Path XQ2+ is connected to contact 2 of contactor JK3. Contact 1 of contactor JK3 is connected to path XQ3-. Contacts 3 and 4 of contactor JK3 are connected to output path Out-2. Power is supplied to lamps of different colors through contactor JK2 or JK3, and load driving terminal 1 and load driving terminal 2 respectively correspond to different lamps. When contactor JK2 is closed, current reaches contact 2 of contactor JK2 through path XQ1+, and then contacts 3-4 of contactor JK2 are closed to supply power to a group of lamps. Similarly, when contactor JK3 is closed, current reaches contact 2 of contactor JK3 through path XQ2+, and then contacts 3-4 of contactor JK3 are closed to supply power to another group of lamps.

[0027] Output path Out-1, output path Out-2, and output path OUT+ are all connected to a DC power supply. The DC power supply is the main energy source output to the lamps. The entire switching process controls the direct current of the main circuit through a low-voltage control circuit (24V DC), which can effectively isolate the power supply and the load, reduce the risk of circuit failures, simplify the circuit design, and improve safety and reliability.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model 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 by the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A fast-response power switching control module, characterized in that: include: A power conversion unit, a manual switching unit and a load driving unit, wherein the power conversion unit is connected in parallel to the manual switching unit and the load driving unit, wherein: The manual switching unit includes a controller S1, a controller S2 and a control circuit, the controller S1 is connected to the terminal X2 port 1, the terminal X2 port 2 is connected to the controller S2, the controller S2 is connected to the cathode of the diode D3, the anode of the diode D3 is connected to the contact 1 of the relay JK1 and is connected to the anode of the diode D4 and the cathode of the electrolytic capacitor CD3, the contact 2 of the relay JK1 is connected to the resistor R1 and is connected to the cathode of the electrolytic capacitor CD2, the other end of the resistor R1 is connected to the anode of the switching power supply M1, the contact 3 of the relay JK1 is connected to the anode of the switching power supply M1, the contact 4 of the relay JK1 is connected to the path XQ2+, and the contact 5 of the relay JK1 is connected to the path XQ1+.

2. The fast-response power switching control module according to claim 1, characterized in that: The power conversion unit is provided with a switching power supply M1, which is an AC 220V to DC 24V power supply. The AC side of the switching power supply M1 is connected to a neutral line and a live line, the positive pole of the DC side of the switching power supply M1 is connected to the positive pole of the electrolytic capacitor CD1, the negative pole of the DC side of the switching power supply M1 is connected to the negative pole of the electrolytic capacitor CD1, and the DC side of the switching power supply M1 is connected in parallel to a manual switching unit and a load driving unit.

3. The fast-response power switching control module according to claim 2, characterized in that: The load driving unit includes a load driving end 1 and a load driving end 2. The load driving end 1 is provided with a diode D2, the cathode of the diode D2 is connected to the path XQ1+ and is connected in parallel with the capacitor C2, and the anode of the diode D2 is connected to the positive electrode of the switching power supply M1. The load driving end 2 is provided with a diode D1, the cathode of the diode D1 is connected to the path XQ2+ and is connected in parallel with the capacitor C1, and the anode of the diode D1 is connected to the positive electrode of the switching power supply M1.

4. The fast-response power switching control module according to claim 3, characterized in that: The path XQ1+ is connected to contactor JK2 contact 2, the contactor JK2 contact 1 is connected to path XQ1-, the contactor JK2 contact 3 and contactor JK2 contact 4 are connected to the output path Out-1, the path XQ2+ is connected to contactor JK3 contact 2, the contactor JK3 contact 1 is connected to path XQ3-, and the contactor JK3 contact 3 and contactor JK3 contact 4 are connected to the output path Out-2.

5. The fast-response power switching control module according to claim 4, characterized in that: The output path Out-1, the output path Out-2 and the output path OUT+ are all connected to a DC power supply.

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