A control device for a trickle flow controller for a vehicle

Abstract

The present invention discloses a control device for a vehicle trickle current generator, which is characterized by comprising: a filter module, a solar panel, a voltage stabilizing module, an output reverse connection protection module, and a display module; the filter module is a capacitor C1 for filtering; the solar panel is used to charge a vehicle battery; the voltage stabilizing module is used to stabilize the circuit voltage; the output reverse connection protection module is used to prevent the vehicle battery from charging the solar panel; and the display module is used to display the vehicle battery power. The present invention provides a control device for a vehicle trickle current generator, which is small in size, consumes less power, is easy to carry, prevents the vehicle battery from reversely charging the solar panel, and can very conveniently display the vehicle battery power.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a control device for a vehicle trickle flow controller. Background Art

[0002] Some cars or motorcycles, when not used for a long time, will lose power due to the self-consumption of the vehicle system and the on-board battery. Generally, users will equip a 10W solar panel to replenish the on-board battery to offset the self-consumption of the battery.

[0003] A control board is needed between the solar panel and the vehicle battery to stabilize the voltage and prevent overcharging. At the same time, in order to prevent the battery power from flowing back into the solar panel at night and causing additional losses, the control board needs to have an anti-reverse charging function. In addition, the output of the solar trickle accumulator is generally equipped with a clip to facilitate users to connect the battery. Some users make operating errors, resulting in reverse output connection, so the control needs to have an anti-output reverse connection function.

[0004] The current solar controllers on the market generally cost tens of yuan, are large in size, and consume a lot of power. The power of the solar trickle condenser itself is relatively small, and the actual working current is only tens of milliamperes. It does not require such a complex three-stage working mode, nor does it require such a high-power controller. This patent uses a simple control device battery to achieve these rigid functions. Summary of the invention

[0005] In view of this, the present invention provides a control device for a vehicle trickle accumulator, which has a small size, consumes less power, is easy to carry, prevents the vehicle battery from reverse charging the solar panel, and can very conveniently display the vehicle battery power.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] A control device for a vehicle trickle flow controller, comprising: a filter module, a solar panel, a voltage stabilizing module, an output reverse connection protection module, and a display module;

[0008] The filtering module is a capacitor C1, which is used for filtering;

[0009] Solar panels are used to charge the onboard battery;

[0010] The voltage stabilizing module is used to stabilize the circuit voltage;

[0011] The output reverse connection protection module is used to prevent the vehicle battery from charging the solar panel;

[0012] The display module is used to display the battery power of the vehicle;

[0013] Furthermore, the positive electrode of the capacitor C1 is connected to the solar cell panel, and the negative electrode is connected to the ground.

[0014] Further, the voltage stabilization module includes a voltage stabilization submodule and a feedback submodule;

[0015] The voltage stabilizing submodule includes: a resistor R4, a diode D1, and a MOS tube Q2;

[0016] The feedback submodule includes: a three-terminal voltage regulator U1, a resistor R5, a resistor R6, and a capacitor C2;

[0017] Furthermore, the output reverse connection protection module includes: a vehicle-mounted battery, a diode D2, a resistor R1, a resistor R2, a resistor R3, and a transistor Q1;

[0018] The base of transistor Q1 is connected to the common end of one end of resistor R1 and one end of resistor R2, the collector is connected to resistor R3, and the emitter is grounded and connected to the other end of resistor R2;

[0019] One end of the resistor R1 is connected to the positive electrode of the vehicle battery, and the other end is connected to the resistor R2 and the base of the transistor Q1; the positive electrode of the vehicle battery is connected to the resistor R1 and the cathode of the diode D2, and the anode of the diode D2 is connected to the resistor R6 of the voltage stabilizing module and the common end of the D pole of the MOS tube Q2;

[0020] Furthermore, the S pole of the MOS tube Q2 of the voltage stabilizing submodule is connected to a common terminal of one end of the resistor R4, the positive pole of the capacitor C1 and the intersection of the solar cell panel, and the anode of the diode D1;

[0021] The G pole of the MOS tube Q2 is connected to the other end of the resistor R4, the cathode of the diode D1, and the common end of the resistor R3;

[0022] The D pole of the MOS tube Q2 is connected to the common end of the resistor R6 and the anode of the diode D2.

[0023] Furthermore, the cathode of the three-terminal voltage regulator U1 of the feedback submodule is connected to the base of the transistor Q1, the resistor R1, and the common end of the resistor R2;

[0024] The anode of the three-terminal voltage regulator U1 is grounded and connected to a common terminal of one end of the resistor R5 and the negative electrode of the capacitor C2;

[0025] The reference end of the three-terminal voltage regulator U1 is connected to the other end of the resistor R5, one end of the resistor R6 and the common end of the positive electrode of the capacitor C2;

[0026] The other end of the resistor R6 is connected to the common end of the D pole of the MOS tube Q2 and the anode of the diode D2.

[0027] Further, the display module includes: a resistor R7, a light emitting diode indicator light D3, a light emitting diode indicator light D4, and a transistor Q3;

[0028] The base of the transistor Q3 is connected to the base of the transistor Q1 and the common end of the resistor R1 and the resistor R2;

[0029] The emitter of the transistor Q3 is grounded and connected to the cathode of the light emitting diode indicator light D4;

[0030] The collector of the transistor Q3 is connected to the anode of the light emitting diode indicator light D4 and the cathode common end of the light emitting diode indicator light D3;

[0031] One end of the resistor R7 is connected to the anode of the light emitting diode indicator light D3, and the other end is connected to the S pole of the MOS tube Q2 of the voltage stabilizing submodule, one end of the resistor R4, and the common end of the anode of the diode D1.

[0032] Further, the LED indicator light D3 displays red light, and the LED indicator light D4 displays green light.

[0033] Beneficial effects:

[0034] The invention provides a control device for a vehicle trickle flow regulator, which has a small size, consumes less power, is easy to carry, prevents a vehicle-mounted battery from reversely charging a solar panel, and can very conveniently display the power level of the vehicle-mounted battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of various modules of a control device for a vehicle trickle flow controller in an embodiment of the present invention;

[0036] Figure 2 A specific circuit connection diagram of each module in a control device for a vehicle trickle flow controller in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] like Figure 1-2 The figure shows a control device for a vehicle trickle flow controller, comprising: a filter module, a solar panel, a voltage stabilizing module, an output reverse connection protection module, and a display module;

[0039] The filtering module is used for filtering;

[0040] Solar panels are used to charge the onboard battery;

[0041] The voltage stabilizing module is used to stabilize the circuit voltage;

[0042] The output reverse connection protection module is used to prevent the vehicle battery from charging the solar panel;

[0043] The display module is used to display the battery power of the vehicle;

[0044] The filtering module is a capacitor C1, the positive electrode of the capacitor C1 is connected to the solar cell panel, and the negative electrode is connected to the ground.

[0045] The output reverse connection protection module includes: a vehicle-mounted battery, a diode D2, a resistor R1, a resistor R2, a resistor R3, and a transistor Q1; the base of the transistor Q1 is connected to the common end of the resistor R1 and the resistor R2, the collector is connected to the resistor R3, and the emitter is grounded and connected to the resistor R2;

[0046] One end of the resistor R1 is connected to the positive electrode of the vehicle battery, and the other end is connected to the resistor R2 and the base of the transistor Q1; the positive electrode of the vehicle battery is connected to the resistor R1 and the cathode of the diode D2, and the anode of the diode D2 is connected to the resistor R6 of the voltage stabilizing module and the common end of the D pole of the MOS tube Q2;

[0047] Figure 2 The DC+ in the figure indicates the positive pole of the vehicle battery, and the negative pole of the vehicle battery is grounded.

[0048] The voltage stabilization module includes a voltage stabilization submodule and a feedback submodule;

[0049] The voltage stabilizing submodule includes: a resistor R4, a diode D1, and a MOS tube Q2;

[0050] The feedback submodule includes: a three-terminal voltage regulator U1, a resistor R5, a resistor R6, and a capacitor C2;

[0051] Furthermore, the S pole of the MOS tube Q2 of the voltage stabilizing submodule is connected to one end of the resistor R4, the positive pole of the capacitor C1 and the intersection end of the solar cell panel, and the common end of the anode of the diode D1;

[0052] The G pole of the MOS tube Q2 is connected to the other end of the resistor R4, the cathode of the diode D1, and the common end of the resistor R3;

[0053] The D pole of the MOS tube Q2 is connected to the common end of the resistor R6 and the anode of the diode D2.

[0054] Furthermore, the cathode C of the three-terminal voltage regulator U1 of the feedback submodule is connected to the base of the transistor Q1, the resistor R1, and the common end of the resistor R2;

[0055] The anode A of the three-terminal voltage regulator U1 is grounded and connected to a common terminal of one end of the resistor R5 and the negative electrode of the capacitor C2;

[0056] The reference terminal R of the three-terminal voltage regulator U1 is connected to the common terminal of the other end of the resistor R5, one end of the resistor R6 and the positive electrode of the capacitor C2;

[0057] The other end of the resistor R6 is connected to the common end of the D pole of the MOS tube Q2 and the anode of the diode D2.

[0058] Preferably, the three-terminal voltage regulator U1 may be TL431.

[0059] The display module includes: a resistor R7, a light emitting diode indicator light D3, a light emitting diode indicator light D4, and a transistor Q3; the light emitting diode indicator light D3 displays red light, and the light emitting diode indicator light D4 displays green light;

[0060] The base of the transistor Q3 is connected to the base of the transistor Q1 and the common end of the resistor R1 and the resistor R2;

[0061] The emitter of the transistor Q3 is grounded and connected to the cathode of the light emitting diode indicator light D4;

[0062] The collector of the transistor Q3 is connected to the anode of the light emitting diode indicator light D4 and the cathode common end of the light emitting diode indicator light D3;

[0063] One end of the resistor R7 is connected to the anode of the light emitting diode indicator light D3, and the other end is connected to the S pole of the MOS tube Q2 of the voltage stabilizing submodule, one end of the resistor R4, and the common end of the anode of the diode D1.

[0064] like Figure 2 As shown, U1, Q1, and Q2 together form a linear voltage regulator circuit. D1 is a gate protection diode for Q2. When the DC+ output is less than 14.4V, EN outputs a high level, Q1 is forward biased and turned on, Q2 is reverse biased and turned on, and the circuit outputs normally. When the DC+ voltage is greater than 14.4V, the EN pin outputs a low level, Q1 is turned off, Q2 is also turned off, and the circuit is not turned on, so that voltage regulation is achieved in this way; at the same time, DC+ can play a role in output reverse connection protection through Q1. When the battery is connected correctly, Q1 is forward biased and turned on, and the system works normally. When the output is reversed, Q1 cannot be turned on, and thus Q2 cannot be turned on either, which protects the circuit control module very well; D2 is used to prevent the battery current from flowing back. When the solar energy is at night, the output voltage is lower than the battery voltage, and D2 can prevent the battery power from flowing back; Q3, D3, and D4 are a charging status display module. When the output is not connected to the battery or the battery is fully charged, EN outputs a low level, D3 turns red, and D4 turns green. When the system works normally, EN outputs a high level, Q3 turns off, and D3 and D4 light up at the same time, thereby displaying the working status.

[0065] Beneficial effects:

[0066] The invention provides a control device for a vehicle trickle flow regulator, which has a small size, consumes less power, is easy to carry, prevents a vehicle-mounted battery from reversely charging a solar panel, and can very conveniently display the power level of the vehicle-mounted battery.

[0067] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A control device for a vehicle trickle flow controller, characterized in that: include: Filter module, solar panel, voltage stabilization module, output reverse connection protection module, display module; The filtering module is a capacitor C1, which is used for filtering; Solar panels are used to charge the onboard battery; The voltage stabilizing module is used to stabilize the circuit voltage; The output reverse connection protection module is used to prevent the vehicle battery from charging the solar panel; The display module is used to display the battery power of the vehicle; The voltage stabilization module includes a voltage stabilization submodule and a feedback submodule; The voltage stabilizing submodule includes: a resistor R4, a diode D1, and a MOS tube Q2; The feedback submodule includes: a three-terminal voltage regulator U1, a resistor R5, a resistor R6, and a capacitor C2; The output reverse connection protection module includes: a vehicle-mounted battery, a diode D2, a resistor R1, a resistor R2, a resistor R3, and a transistor Q1; The base of transistor Q1 is connected to the common end of one end of resistor R1 and one end of resistor R2, the collector is connected to resistor R3, and the emitter is grounded and connected to the other end of resistor R2; One end of the resistor R1 is connected to the positive electrode of the vehicle battery, and the other end is connected to the resistor R2 and the base of the transistor Q1; the positive electrode of the vehicle battery is connected to the resistor R1 and the cathode of the diode D2, and the anode of the diode D2 is connected to the resistor R6 of the voltage stabilizing module and the common end of the D pole of the MOS tube Q2; The S pole of the MOS tube Q2 of the voltage stabilizing submodule is connected to one end of the resistor R4, the positive pole of the capacitor C1 and the intersection end of the solar cell panel, and the common end of the anode of the diode D1; The G pole of the MOS tube Q2 is connected to the other end of the resistor R4, the cathode of the diode D1, and the common end of the resistor R3; The D pole of the MOS tube Q2 is connected to the common end of the anode of the resistor R6 and the diode D2; The cathode of the three-terminal voltage regulator U1 of the feedback submodule is connected to the base of the transistor Q1, the resistor R1, and the common end of the resistor R2; The anode of the three-terminal voltage regulator U1 is grounded and connected to a common terminal of one end of the resistor R5 and the negative electrode of the capacitor C2; The reference end of the three-terminal voltage regulator U1 is connected to the other end of the resistor R5, one end of the resistor R6 and the common end of the positive electrode of the capacitor C2; The other end of the resistor R6 is connected to the common end of the D pole of the MOS tube Q2 and the anode of the diode D2; A linear voltage regulator circuit is formed by three-terminal voltage regulator U1, transistor Q1, and MOS tube Q2. Diode D1 is the gate protection diode of MOS tube Q2. When the positive voltage output of the vehicle battery is less than 14.4V, the base of transistor Q1 inputs a high level, transistor Q1 is forward biased and turned on, MOS tube Q2 is reverse biased and turned on, and the circuit outputs normally. When the positive voltage of the vehicle battery is greater than 14.4V, the base pin of transistor Q1 inputs a low level, transistor Q1 is turned off, MOS tube Q2 is also turned off, and the circuit is not turned on. Voltage stabilization is achieved in the above manner. At the same time, the positive electrode of the vehicle battery can play a role in output reverse connection protection through Q1. When the vehicle battery is connected correctly, transistor Q1 is forward biased and turned on, and the system works normally. When the output is reversed, transistor Q1 cannot be turned on, and thus MOS tube Q2 cannot be turned on.

2. The control device for a vehicle trickle flow controller according to claim 1, characterized in that: The positive electrode of the capacitor C1 is connected to the solar cell panel, and the negative electrode is connected to the ground.

3. The control device for a vehicle trickle flow controller according to claim 1, characterized in that: The display module includes: a resistor R7, a light emitting diode indicator light D3, a light emitting diode indicator light D4, and a transistor Q3; The base of the transistor Q3 is connected to the base of the transistor Q1 and the common end of the resistor R1 and the resistor R2; The emitter of the transistor Q3 is grounded and connected to the cathode of the light emitting diode indicator light D4; The collector of the transistor Q3 is connected to the anode of the light emitting diode indicator light D4 and the cathode common end of the light emitting diode indicator light D3; One end of the resistor R7 is connected to the anode of the light emitting diode indicator light D3, and the other end is connected to the S pole of the MOS tube Q2 of the voltage stabilizing submodule, one end of the resistor R4, and the common end of the anode of the diode D1.

4. The control device for a vehicle trickle flow controller according to claim 3, characterized in that: The LED indicator light D3 displays red light, and the LED indicator light D4 displays green light.

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