Voltage regulator for motorcycle main and auxiliary batteries

Abstract

The utility model discloses a kind of voltage regulator for motorcycle main battery and auxiliary battery, it is related to voltage regulator technical field.The voltage regulator includes voltage regulating module, voltage regulator includes two ac-dc conversion voltage regulating unit and output circuit, the magnetic motor winding of motorcycle is winding A and winding B respectively, the output end of winding A is connected with the input end of one ac-dc conversion voltage regulating unit, the output end of winding B is connected with the input end of another ac-dc conversion voltage regulating unit, the output end of two ac-dc conversion voltage regulating units is output two-way voltage V1+ and V2+ after output circuit, voltage V1+ is divided into two ways, first road is connected with the anode of main battery after sequentially through fuse FU1 and switch S1, second road is grounded after sequentially through switch S2 and main load;Voltage V2+ is divided into two ways, first road is connected with the anode of auxiliary battery after sequentially through fuse FU2 and switch S3, second road is grounded after sequentially through switch S4 and auxiliary load.The voltage regulator has the advantages of low cost, good heat dissipation etc..

Description

Technical Field

[0001] This utility model relates to the field of voltage regulator technology, and in particular to a voltage regulator for motorcycle main battery and auxiliary battery. Background Technology

[0002] With the rapid development of motorcycle technology and the increasing number of onboard devices, the demands on batteries are also rising. Batteries need to have large capacity, long range, and high safety, while also being small in size and low in cost. Therefore, in practical applications, more and more vehicle models are choosing a compromise solution: a dual-battery power system consisting of a main battery and a secondary battery. The roles of the main battery and the secondary battery are as follows: Main battery: primarily responsible for high-power instantaneous discharge scenarios such as engine starting, ensuring reliable starting; Secondary battery: continuously supplies power to auxiliary devices (such as in-vehicle multimedia, lighting systems, and navigation systems), preventing the main battery from being depleted too quickly. Vehicles with dual-battery power systems typically require a high-power voltage regulator to simultaneously charge both the main and auxiliary batteries while the vehicle is running. Currently available high-power magnetos and voltage regulators operate on the following principles: Figure 1 As shown. Due to the high power consumption during operation, i.e., the large current flowing through the coil windings in the magneto and the rectifier bridge in the voltage regulator, more heat is generated. Therefore, higher temperature-resistant enameled wire and a rectifier bridge with higher current resistance are required, along with a larger volume to provide a better heat dissipation environment. Ultimately, this results in a large overall system size, weight, and cost, and also prevents targeted control of the main and auxiliary batteries. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to provide a low-cost, high-heat-dissipation voltage regulator for motorcycle main batteries and auxiliary batteries.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a voltage regulator for a motorcycle main battery and a secondary battery, including a voltage regulating module. The voltage regulator includes two AC / DC conversion voltage regulating units and an output circuit. On the stator frame of the motorcycle's magneto, two completely isolated three-phase windings, namely winding A and winding B, are wound simultaneously. The output terminal of winding A is connected to the input terminal of one AC / DC conversion voltage regulating unit, and the output terminal of winding B is connected to the input terminal of another AC / DC conversion voltage regulating unit. The output terminals of the two AC / DC conversion voltage regulating units output two voltages, V1+ and V2+, after passing through the output circuit. Voltage V1+ is divided into two paths. The first path passes through fuse FU1 and switch S1 in sequence and is connected to the positive terminal of the main battery. The second path passes through switch S2 and the main load in sequence and is grounded. Voltage V2+ is divided into two paths. The first path passes through fuse FU2 and switch S3 in sequence and is connected to the positive terminal of the secondary battery. The second path passes through switch S4 and the secondary load in sequence and is grounded.

[0005] A further technical solution is as follows: the output circuit includes diode D1, the anode of diode D1 is connected to the output terminal of one of the voltage regulators, the cathode of diode D1 is connected to the output terminal of another voltage regulator; the anode of diode D2 is connected to the anode of diode D1, and the cathode of diode D2 is divided into two paths: the first path is connected to the drain of MOSFET F1, the source of F1 is the voltage V2+ output terminal, and the second path is connected to resistor R7. It is then connected to the collector of transistor T1; the collector of transistor T1 is connected to the gate of F1 via resistor R6; the base of transistor T1 is connected to one end of resistor R3 and the emitter of transistor T2 via resistor R2; the collector of transistor T2 is grounded; the other end of resistor R3 is connected to a +12V power supply; the base of transistor T2 is connected to the anode of diode D3 via resistor R5; the cathode of diode D3 is grounded via control switch S5; the cathode of diode D1 is the output voltage V1+.

[0006] The beneficial effects of adopting the above technical solution are as follows: By dividing the output of the magneto into two paths, this application effectively reduces the output current. The dual-path winding method can reduce the requirements for the diameter and temperature resistance of the enameled wire in the magneto. Furthermore, the dual-path voltage regulation method can effectively reduce the power requirements of the rectifier bridge in the AC-DC conversion voltage regulation unit, thus effectively reducing the cost of the device. In addition, in this application, the charging target of the voltage regulator can be flexibly selected according to the actual situation through the control signal, making it more convenient to use. Attached Figure Description

[0007] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0008] Figure 1 This is a schematic diagram of an AC / DC conversion voltage regulation unit in the existing technology; Figure 2 This is a schematic diagram of the voltage regulator described in this embodiment of the utility model. Figure 3 This is a block diagram illustrating the principle of the voltage regulating module in the voltage regulator described in this embodiment of the utility model. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0011] like Figures 2-3 As shown in the figure, this utility model discloses a voltage regulator for a motorcycle main battery and auxiliary battery, including a voltage regulating module. The voltage regulator includes two AC / DC conversion voltage regulating units and an output circuit. The AC / DC conversion voltage regulation unit includes a control chip and peripheral circuitry connected to the control chip. The peripheral circuitry includes MOS transistors QA1-QA6 connected to the input terminal of the control chip. It should be noted that the specific circuit structure of the AC / DC conversion voltage regulation unit in this application can be found by referring to... Figure 1 As shown, other specific structures will not be elaborated here.

[0012] On the stator frame of the motorcycle's magneto, two completely isolated three-phase windings, namely winding A and winding B, are wound simultaneously. The output terminal of winding A is connected to the input terminal of an AC / DC converter voltage regulator unit, and the output terminal of winding B is connected to the input terminal of another AC / DC converter voltage regulator unit. The output terminals of the two AC / DC converter voltage regulator units output two voltages, V1+ and V2+, through an output circuit. Voltage V1+ is divided into two paths: the first path passes through fuse FU1 and switch S1 and is connected to the positive terminal of the main battery; the second path passes through switch S2 and the main load and is grounded. Voltage V2+ is also divided into two paths: the first path passes through fuse FU2 and switch S3 and is connected to the positive terminal of the auxiliary battery; the second path passes through switch S4 and the auxiliary load and is grounded. It should be noted that the voltage regulator also includes a V1- port paired with V1+ and a V2- port paired with V2+, which together constitute the corresponding voltage output ports.

[0013] Furthermore, such as Figure 3As shown, the output circuit includes diode D1. The anode of diode D1 is connected to the output terminal of one of the voltage regulators, and the cathode of diode D1 is connected to the output terminal of the other voltage regulator. The anode of diode D2 is connected to the anode of diode D1. The cathode of diode D2 is divided into two paths: the first path is connected to the drain of MOSFET F1, and the source of F1 is the output terminal of voltage V2+; the second path is connected to the transistor via resistor R7. The collector of transistor T1 is connected; the collector of transistor T1 is connected to the gate of F1 via resistor R6; the base of transistor T1 is connected to one end of resistor R3 and the emitter of transistor T2 via resistor R2; the collector of transistor T2 is grounded; the other end of resistor R3 is connected to a +12V power supply; the base of transistor T2 is connected to the anode of diode D3 via resistor R5; the cathode of diode D3 is grounded via control switch S5; the cathode of diode D1 is the output voltage V1+.

[0014] In this application, a MOSFET is added in series in the output circuit of the auxiliary battery. This MOSFET can be controlled by an external input signal to achieve the following functions: MOSFET on: The voltage regulator charges both the main battery and the auxiliary battery simultaneously. MOSFET off: The voltage regulator only charges the main battery, ensuring sufficient power for the normal starting of the motorcycle. Furthermore, the external input control signal can be manual or automatically controlled by other controllers.

[0015] This application effectively reduces the output current by dividing the magneto output into two paths. The dual-path winding method reduces the requirements for the enameled wire diameter and temperature resistance in the magneto. Furthermore, the dual-path voltage regulation method effectively reduces the power requirement of the rectifier bridge in the AC-DC conversion voltage regulation unit, thus effectively reducing the cost of the components. In addition, this application allows for flexible selection of the charging target of the voltage regulator based on actual conditions through control signals, making it more convenient to use.

Claims

1. A voltage regulator for a motorcycle main battery and auxiliary battery, characterized in that: The system includes a voltage regulating module, which comprises two AC / DC conversion voltage regulating units and an output circuit. Two completely isolated three-phase windings, winding A and winding B, are wound simultaneously on the stator frame of the motorcycle's magneto. The output terminal of winding A is connected to the input terminal of one AC / DC conversion voltage regulating unit, and the output terminal of winding B is connected to the input terminal of the other AC / DC conversion voltage regulating unit. The output terminals of the two AC / DC conversion voltage regulating units output two voltages, V1+ and V2+, through the output circuit. Voltage V1+ is divided into two paths: the first path connects to the positive terminal of the main battery via fuse FU1 and switch S1, and the second path connects to ground via switch S2 and the main load. Voltage V2+ is also divided into two paths: the first path connects to the positive terminal of the auxiliary battery via fuse FU2 and switch S3, and the second path connects to ground via switch S4 and the auxiliary load.

2. The voltage regulator for motorcycle main battery and auxiliary battery as described in claim 1, characterized in that: The output circuit includes diode D1, the anode of which is connected to the output terminal of one of the voltage regulators, and the cathode of which is connected to the output terminal of the other voltage regulator. Diode D2's anode is connected to the anode of diode D1, and its cathode is split into two paths: the first path is connected to the drain of MOSFET F1, with the source of F1 being the output voltage V2+; the second path is connected to the collector of transistor T1 via resistor R7. The collector of transistor T1 is connected to the gate of F1 via resistor R6. The base of transistor T1 is connected to one end of resistor R3 and the emitter of transistor T2 via resistor R2. The collector of transistor T2 is grounded, and the other end of resistor R3 is connected to a +12V power supply. The base of transistor T2 is connected to the anode of diode D3 via resistor R5, and the cathode of diode D3 is grounded via control switch S5. The cathode of diode D1 is the output voltage V1+.

3. The voltage regulator for motorcycle main battery and auxiliary battery as described in claim 1, characterized in that: The AC / DC conversion voltage regulation unit includes a control chip and peripheral circuits connected to the control chip.

4. The voltage regulator for motorcycle main battery and auxiliary battery as described in claim 3, characterized in that: The peripheral circuit includes MOS transistors QA1-QA6 connected to the input terminal of the control chip.

5. The voltage regulator for motorcycle main battery and auxiliary battery as described in claim 1, characterized in that: The voltage regulator also includes a V1- port paired with the V1+ and a V2- port paired with the V2+.

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