Automatic charging remote controller

Abstract

The utility model discloses an automatic charging remote controller which comprises a remote controller body, a solar panel, a rechargeable battery, a main charging circuit and a supplementary charging circuit, the rechargeable battery is arranged in the remote controller body, is connected with the remote controller body and provides electric energy for the remote controller body; the solar panel is connected with the rechargeable battery through the main charging circuit to supply power to the rechargeable battery, and the charging circuit controls the charging process of the rechargeable battery; the supplementary charging circuit is connected with the solar panel and the remote controller body and used for transmitting electric energy of the solar panel to the remote controller body. According to the utility model, the charging steps can be reduced, the endurance anxiety of the remote controller is eliminated, the battery of the remote controller can be fully charged, the remote controller can be continuously used in the charging process, and the charging stop protection of the charged battery is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of remote controllers, and particularly relates to an automatically charging remote controller. Background Art

[0002] In the prior art, remote controllers are mainly powered by batteries. When the battery is in a low power state, the remote controller will give a low power alarm. The operator needs to remove the battery and replace it with a new one in a short time to continue using. The low power battery needs to be put into a battery charger for charging. This operation wastes working hours and causes range anxiety. Therefore, there is a need for an automatically charging remote controller to reduce the charging steps and eliminate the range anxiety of the remote controller. Summary of the Invention

[0003] According to an embodiment of the utility model, there is provided an automatically charging remote controller, comprising: a remote controller body, a solar panel, a rechargeable battery, a main charging circuit and a supplementary charging circuit;

[0004] The rechargeable battery is arranged in the remote controller body and is connected to the remote controller body to provide electric energy for the remote controller body;

[0005] The solar panel is connected to the rechargeable battery through the main charging circuit to supply power to the rechargeable battery, and the charging circuit controls the charging process of the rechargeable battery;

[0006] The supplementary charging circuit is connected to the solar panel and the remote controller body for delivering the electric energy of the solar panel to the remote controller body.

[0007] Further, the main charging circuit comprises: a solar charging management chip, a PMOS transistor, a first inductor, a first diode, a second diode and a first resistor;

[0008] The solar charging management chip is a CN3722 chip. The 1st pin and the 15th pin of the solar charging management chip are connected to the solar panel. The 16th pin of the solar charging management chip is connected to the gate of the PMOS transistor. The 14th pin of the solar charging management chip is connected to the rechargeable battery. The solar charging management chip controls the charging process of the rechargeable battery;

[0009] The source of the PMOS transistor is connected to the solar panel, and the drain of the PMOS transistor is connected to the anode of the first diode;

[0010] The cathode of the second diode is connected to the cathode of the first diode, and the anode of the second diode is grounded;

[0011] Both ends of the first inductor are respectively connected to the cathode of the first diode and the first resistor, and the first resistor is connected to the rechargeable battery.

[0012] Further, the main charging circuit further includes: a second resistor and a third resistor. One end of the second resistor and one end of the third resistor are connected to the 7th pin of the solar charging management chip. The other end of the second resistor is connected to the solar panel, and the other end of the third resistor is grounded. The 7th pin of the solar charging management chip detects the voltage of the solar panel.

[0013] Further, the main charging circuit further includes: a fourth resistor, a fifth resistor and a first capacitor;

[0014] One end of the fourth resistor and one end of the fifth resistor are connected to the 10th pin of the solar charging management chip. The other end of the fourth resistor is grounded, and the other end of the fifth resistor is connected to the charging battery;

[0015] The first capacitor is connected in parallel across the two ends of the fifth resistor;

[0016] The solar charging management chip detects the voltage of the charging battery.

[0017] Further, a first indicator resistor and a first indicator are connected in series in sequence to the 4th pin of the solar charging management chip, and a second indicator resistor and a second indicator are connected in series in sequence to the 5th pin of the solar charging management chip. The first indicator and the second indicator are connected to the solar panel.

[0018] Further, the supplementary charging circuit includes: a power supply chip, a second inductor, a third diode and a fourth diode;

[0019] The input end of the power supply chip is connected to the solar panel. The output end of the power supply chip is connected in series with the second inductor and the third diode in sequence. The cathode of the third diode is connected to the remote control body;

[0020] The cathode of the fourth diode is connected to the output end of the power supply chip, and the anode of the fourth diode is grounded.

[0021] Further, the third diode and the fourth diode are reverse cut-off diodes.

[0022] The automatic charging remote control according to the embodiment of the present invention can reduce the charging steps, eliminate the endurance anxiety of the remote control, ensure that the remote control battery can be fully charged, and the remote control can continue to be used during the charging process, realizing the charging stop protection for the fully charged battery.

[0023] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic connection diagram of the solar panel and the charging circuit of the automatic charging remote control according to the embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the connection between the rechargeable battery and the charging circuit of the automatic charging remote control according to an embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the main charging circuit principle of the automatic charging remote control according to an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the indicator light connection of the automatic charging remote control according to an embodiment of the present invention;

[0028] Figure 5 Schematic diagram of the supplementary charging circuit principle of the automatic charging remote control according to an embodiment of the present invention. Detailed implementation manners

[0029] Hereinafter, with reference to the accompanying drawings, the preferred embodiments of the present invention will be described in detail to further elaborate on the present invention.

[0030] First, in combination with Figures 1 - 5 Describe an automatic charging remote control according to an embodiment of the present invention, which is used to realize the automatic charging of the remote control battery and has a wide range of application scenarios.

[0031] As Figures 1 - 5 shown, the automatic charging remote control according to an embodiment of the present invention includes: an automatic charging remote control, including: a remote control body, a solar panel, a rechargeable battery, a main charging circuit, and a supplementary charging circuit.

[0032] Specifically, as Figures 1 - 5 shown, in this embodiment, the rechargeable battery is arranged in the remote control body and is connected to the remote control body to provide electrical energy for the remote control body; the solar panel is connected to the rechargeable battery through the main charging circuit to supply power to the rechargeable battery, and the charging circuit controls the charging process of the rechargeable battery; the supplementary charging circuit is connected to the solar panel and the remote control body and is used to deliver the electrical energy of the solar panel to the remote control body. When the charging circuit charges the rechargeable battery, the supplementary charging circuit supplies power to the remote control body to achieve continuous power supply during charging. After the rechargeable battery is fully charged, the solar panel will stop charging the rechargeable battery and continue to generate electricity in the presence of sunlight to share the power supply pressure of the remote control body with the rechargeable battery.

[0033] Furthermore, as Figures 1 - 5As shown, in this embodiment, the main charging circuit includes: a solar charging management chip U2, a PMOS transistor U1, a first inductor L1, a first diode D2, a second diode D3, and a first resistor R2; the solar charging management chip U2 is a CN3722 chip, the PMOS transistor U1 is a STM9435 chip, the 1st pin and the 15th pin of the solar charging management chip U2 are connected to the solar panel, the 16th pin of the solar charging management chip U2 is connected to the gate (4th pin) of the PMOS transistor U1, the 14th pin of the solar charging management chip U2 is connected to the charging battery, and the solar charging management chip U2 controls the charging process of the charging battery; the source (1st, 2nd, and 3rd pins) of the PMOS transistor U1 is connected to the solar panel, and the drain (5th, 6th, 7th, and 8th pins) of the PMOS transistor U1 is connected to the anode of the first diode D2; the cathode of the second diode D3 is connected to the cathode of the first diode D2, and the anode of the second diode D3 is grounded; both ends of the first inductor L1 are respectively connected to the cathode of the first diode D2 and the first resistor R2, the first resistor R2 is connected to the charging battery, and both the first diode D2 and the second diode D3 are reverse cutoff diodes with the model number SS34, ensuring that the current flows unidirectionally from the solar panel to the battery to protect the circuit, and the charging logic is implemented through the DC-DC circuit composed of the first inductor L1 and the second diode D3; in this embodiment, the electricity generated by the solar panel is used to power the solar charging management chip U2. After the solar charging management chip U2 is powered on, it controls the 16th pin, which is the gate of the PMOS transistor U1, to charge the subsequent charging battery. The control principle is based on periodically controlling the switching of the power electronic switching device, and in this way, pulse modulation is performed on the input voltage to achieve voltage conversion and automatic voltage regulation. The output voltage and current are adjusted by controlling the frequency and duty cycle of the switch. At the same time, components such as the capacitor C6 and the first resistor R2 in the output circuit can stabilize the output voltage and current to ensure the stable operation of the device.

[0034] Further, as Figures 1 - 5 shown, in this embodiment, the main charging circuit further includes: a second resistor R3 and a third resistor R7. One end of the second resistor R3 and one end of the third resistor R7 are connected to the 7th pin of the solar charging management chip U2, the other end of the second resistor R3 is connected to the solar panel, the other end of the third resistor R7 is grounded, the 7th pin of the solar charging management chip U2 detects the voltage of the solar panel, and a resistor voltage division network is formed by the second resistor R3 and the third resistor R7 to detect the voltage of the solar panel. The 7th pin of the solar charging management chip U2 is the maximum power point tracking terminal of the solar panel. During normal operation, the voltage of this pin is modulated to 1.04V (25°C), and the temperature coefficient is -0.4% / °C, which conforms to the temperature coefficient of the maximum power point voltage of the solar panel.

[0035] Further, as Figures 1 - 5As shown, in this embodiment, the main charging circuit further includes: a fourth resistor R6, a fifth resistor R5, and a first capacitor C11; one end of the fourth resistor R6 and one end of the fifth resistor R5 are connected to the 10th pin of the solar charging management chip U2, the other end of the fourth resistor R6 is grounded, and the other end of the fifth resistor R5 is connected to the charging battery; the first capacitor C11 is connected in parallel across the two ends of the fifth resistor R5; the solar charging management chip U2 detects the voltage of the charging battery; the 10th pin of the solar charging management chip U2 is the battery voltage feedback terminal, and the battery voltage is detected in the form of an externally connected voltage-dividing resistor; when the full-charge voltage value is reached, the periodic switching state of the PMOS transistor U1 is stopped, and the PMOS transistor U1 is directly changed to the conducting state to stop charging the battery to meet the requirement of stopping charging when full. The remaining COM pins of the solar charging management chip U2 are the loop compensation input terminals, and capacitors of this type of pin need to be connected to ground.

[0036] Further, as Figures 1 - 5 shown, in this embodiment, a first indicator resistor R9 and a first indicator D4 are sequentially connected in series to the 4th pin of the solar charging management chip U2, a second indicator resistor R10 and a second indicator D5 are sequentially connected in series to the 5th pin of the solar charging management chip U2, and the first indicator D4 and the second indicator D5 are connected to the solar panel. The 4th pin and the 5th pin of the solar charging management chip U2 are indicator pins. When charging, the 4th pin of the solar charging management chip U2 will output a low level to control the first indicator D4 to light up; when charging is completed, the 5th pin of the solar charging management chip U2 will output a low level to control the second indicator D5 to light up.

[0037] Further, as Figures 1 - 5As shown, in this embodiment, the supplementary charging circuit includes: a power supply chip U3, a second inductor L2, a third diode D6, and a fourth diode D7; the model of the power supply chip U3 is LM2576-ADJ. The input terminal of the power supply chip U3 is connected to the solar panel. The output terminal of the power supply chip U3 is sequentially connected in series with the second inductor L2 and the third diode D6, and the cathode of the third diode D6 is connected to the remote control body; the cathode of the fourth diode D7 is connected to the output terminal of the power supply chip U3, and the anode of the fourth diode D7 is grounded. When the solar charging remote control needs to continue using the functions of the remote control during charging, in order not to affect the charging speed and charging efficiency, additional power supply is required to supply power to the remote control during charging to share the power supply pressure for the solar charging management chip U2. The supplementary charging circuit uses the power supply VSUN converted by the solar panel as the input to the DC-DC power supply chip U3. By periodically controlling the switching of the power electronic switching device, the input voltage is pulse-width modulated in this way to achieve voltage conversion and automatic voltage stabilization. The output voltage and current are adjusted by controlling the frequency and duty cycle of the switch. At the same time, components such as capacitors and resistors in the output circuit can stabilize the output voltage and current to ensure the stable operation of the device. The voltage is stabilized at the battery charging voltage and the power supply voltage of the remote control body, so that while sharing the charging pressure, it also supplies power to the remote control body. The third diode D6 and the fourth diode D7 are reverse cut-off diodes to ensure the unidirectional flow of current and protect the circuit.

[0038] Through the above main charging circuit and supplementary charging circuit, four functions are integrated: solar voltage acquisition, charging of the remote control transmitter battery, power supply to the remote control body during solar charging, and automatic detection of full charge and stop charging. The modular design allows this module to be installed on different remote controls and facilitates later maintenance and replacement.

[0039] As Figures 1 - 5 shown, the external solar panel collects sunlight and enters the charging circuit through the terminal block J1. The diode D1 conducts unidirectionally to ensure that the current direction is from the solar panel to the battery, playing a role in protecting the solar panel; the capacitors C1 and C2 are filter capacitors to make the waveform of the voltage value converted by the solar panel smoother and ensure charging stability. VSUN is the circuit label for the conversion by the solar panel. VSUN supplies power to two circuits in total. One circuit supplies power to the solar charging management chip U2 for the purpose of charging the charging battery. One circuit supplies power to the power supply chip U3 for the purpose of supplying power to the remote control body during the charging of the charging battery.

[0040] During the charging process of the rechargeable battery, VSUN supplies power to the solar charging management chip U2 on the one hand, and on the other hand, as the main power source for pulse modulation, it charges the rechargeable battery. When charging the rechargeable battery as the main power source for pulse modulation, VSUN is connected to the PMOS transistor U1, and the gate of the PMOS transistor U1 is controlled through the 16th pin of the solar charging management chip U2. According to the duty cycle and other set values set by the solar charging management chip U2, the gate of the PMOS transistor U1 is turned on at the set duty cycle to complete the charging voltage setting. The charging logic is realized through the switching of the PMOS transistor U1 and the DC-DC circuit composed of the first inductor L1 and the second diode D3.

[0041] During the charging process of the remote control, VSUN supplies power to the power chip U3 to ensure charging efficiency. U3 is a DC-DC power chip. Connect VSUN to the 1st pin VIN of the power chip U3 to provide input power. The 5th pin of the power chip U3 is the chip working switch pin. Connecting it to the ground can make the chip enter the working state. The power chip U3 detects the output voltage through the 4th pin FB, and modifies the feedback value through resistor voltage division to the voltage value required for power supply to the remote control body. The power chip U3 outputs through the 2nd pin VOUT, and forms a DC-DC circuit through the second inductor L2 and the sixth diode D7 to output a smooth power supply to the remote control body. The power supply network number of the remote control body is VCAP. VCAP is connected to the battery network number VBAT through the diode D8 at the terminal block J4, and the terminal block J4 is connected to the rechargeable battery VBAT, which can supply power to the circuit board of the remote control body.

[0042] When the battery is fully charged, the solar charging management chip U2 stops controlling the gate of the PMOS transistor U1 through the 16th pin and stops charging. At this time, the battery discharges to the terminal block J4 through the network number VBAT and reaches the circuit board of the remote control body through the terminal block J4.

[0043] Above, with reference to Figures 1 - 5 An automatic charging remote control according to an embodiment of the present invention is described, which can reduce the charging steps, eliminate the endurance anxiety of the remote control, ensure that the remote control battery can be fully charged, and the remote control can continue to be used during the charging process, realizing the stop charging protection of the battery after charging.

[0044] It should be noted that in this specification, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "comprising..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0045] Although the content of the present utility model has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation to the present utility model. After those skilled in the art have read the above content, various modifications and alternatives to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. An automatic charging remote control, characterized in that, It includes: a remote control body, a solar panel, a rechargeable battery, a main charging circuit, and a supplementary charging circuit; The rechargeable battery is arranged inside the remote control body and connected to the remote control body to provide electrical energy for the remote control body; The solar panel is connected to the rechargeable battery through the main charging circuit to supply power to the rechargeable battery, and the charging circuit controls the charging process of the rechargeable battery; The supplementary charging circuit is connected to the solar panel and the remote control body for delivering the electrical energy of the solar panel to the remote control body; The main charging circuit includes: a solar charging management chip, a PMOS transistor, a first inductor, a first diode, a second diode, and a first resistor; The solar charging management chip is a CN3722 chip. The 1st pin and the 15th pin of the solar charging management chip are connected to the solar panel. The 16th pin of the solar charging management chip is connected to the gate of the PMOS transistor. The 14th pin of the solar charging management chip is connected to the rechargeable battery. The solar charging management chip controls the charging process of the rechargeable battery; The source of the PMOS transistor is connected to the solar panel, and the drain of the PMOS transistor is connected to the anode of the first diode; The cathode of the second diode is connected to the cathode of the first diode, and the anode of the second diode is grounded; Both ends of the first inductor are respectively connected to the cathode of the first diode and the first resistor, and the first resistor is connected to the rechargeable battery.

2. The automatic charging remote controller according to claim 1, characterized in that The main charging circuit further includes: a second resistor and a third resistor. One end of the second resistor and one end of the third resistor are connected to the 7th pin of the solar charging management chip. The other end of the second resistor is connected to the solar panel, and the other end of the third resistor is grounded. The 7th pin of the solar charging management chip detects the voltage of the solar panel.

3. The automatic charging remote controller according to claim 1, wherein, The main charging circuit further includes: a fourth resistor, a fifth resistor, and a first capacitor; One end of the fourth resistor and one end of the fifth resistor are connected to the 10th pin of the solar charging management chip. The other end of the fourth resistor is grounded, and the other end of the fifth resistor is connected to the rechargeable battery; The first capacitor is connected in parallel across both ends of the fifth resistor; The solar charging management chip detects the voltage of the rechargeable battery.

4. The automatic charging remote controller according to claim 1, wherein A first indicator resistor and a first indicator are connected in series in sequence to the 4th pin of the solar charging management chip. A second indicator resistor and a second indicator are connected in series in sequence to the 5th pin of the solar charging management chip. The first indicator and the second indicator are connected to the solar panel.

5. The automatic charging remote controller according to claim 1, wherein The supplementary charging circuit includes: a power supply chip, a second inductor, a third diode, and a fourth diode; The input end of the power supply chip is connected to the solar panel. The output end of the power supply chip is connected in series with the second inductor and the third diode in sequence. The cathode of the third diode is connected to the remote control body; The cathode of the fourth diode is connected to the output end of the power supply chip, and the anode of the fourth diode is grounded.

6. The automatic charging remote controller according to claim 5, characterized in that, The third diode and the fourth diode are reverse cutoff diodes.

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