Solar lamp control circuit capable of automatically supplementing electricity and facilitating long-term transportation and storage

Abstract

The invention discloses a solar lamp control circuit capable of automatically supplementing electricity and facilitating long-term transportation and storage. A solar lamp comprises a solar panel, a battery, a circuit board and a light source board. The control circuit is arranged on the circuit board and comprises a main control chip U4, an induction circuit, a charging circuit, a charging detection circuit, a working circuit and a chip driving circuit. The solar panel is electrically connected with the battery through the charging circuit, the battery is connected with the main control chip U4 through the chip driving circuit and supplies power to the main control chip U4, the main control chip U4 is connected with the light source panel through the working circuit, and the induction circuit is connected with the main control chip U4. The input end of the charging detection circuit is connected with the solar panel, the output end of the charging detection circuit is connected with the main control chip U4, the main control chip U4 can obtain the output voltage of the solar panel through the charging detection circuit, and if the output voltage is zero for a long time, the solar lamp is in a transportation state, and the main control chip U4 enters a dormant state.

Description

Technical Field

[0001] The present invention relates to the field of lamps, and particularly to a solar lamp control circuit that automatically charges and is beneficial for long-term transportation and storage. Background Art

[0002] For considerations of transportation costs, in international trade, a large number of products are mainly transported by container shipping or railway, and such transportation time is relatively long, which may be as long as 15 - 90 days. For the battery in the lamp, a long-term zero-power state is not conducive to the battery life. Maintaining the battery in the range of 20% - 80% is a better choice. Therefore, there is a need for a solar lamp control circuit that automatically charges and is beneficial for long-term transportation and storage, which can determine whether the solar lamp itself is in the transportation state by detecting the output voltage at the solar panel during transportation, and reduce the power consumption during transportation by entering the sleep state, thereby protecting the battery and increasing its service life. Summary of the Invention

[0003] The main object of the present invention is to provide a solar lamp control circuit that automatically charges and is beneficial for long-term transportation and storage, which can determine whether the solar lamp itself is in the transportation state by detecting the output voltage at the solar panel during transportation, and reduce the power consumption during transportation by entering the sleep state, thereby protecting the battery and increasing its service life.

[0004] The present invention provides a solar lamp control circuit that automatically charges and is beneficial for long-term transportation and storage. The solar lamp includes a solar panel, a battery, a circuit board, and a light source board.

[0005] The control circuit is arranged on the circuit board. The control circuit includes a main control chip U4, an induction circuit, a charging circuit, a charging detection circuit, a working circuit, and a chip driving circuit.

[0006] The solar panel is electrically connected to the battery through the charging circuit. The battery is connected to and supplies power to the main control chip U4 through the chip driving circuit. The main control chip U4 is connected to the light source board through the working circuit. The induction circuit is connected to the main control chip U4.

[0007] The input end of the charging detection circuit is connected to the solar panel, and the output end of the charging detection circuit is connected to the main control chip U4. The main control chip U4 can obtain the output voltage of the solar panel through the charging detection circuit. If the output voltage is 0 for a long time, it means that the solar lamp is in the transportation state, and the main control chip U4 enters the sleep state.

[0008] Preferably, the control circuit further includes a battery detection circuit. The battery detection circuit includes a resistor R11 and a resistor R12. One end of the resistor R11 is connected to the battery. The other end of the resistor R11 is grounded through the resistor R12 and connected to an input / output pin of the main control chip U4. The main control chip U4 can obtain the power of the battery through the battery detection circuit, and thus select a suitable working state according to the obtained power.

[0009] Preferably, the induction circuit includes a radar induction circuit. The radar induction circuit is connected to an input / output pin of the main control chip U4. The main control chip U4 can obtain information on whether there are people and objects approaching within the induction range through the radar induction circuit.

[0010] Preferably, the induction circuit further includes an infrared receiving circuit. The infrared receiving circuit is connected to an input / output pin of the main control chip U4. A remote control or other external device can be connected to the main control chip U4 through the infrared receiving circuit and select a suitable working mode.

[0011] Preferably, the control circuit further includes an indicator light circuit. The indicator light circuit is connected to an input / output pin of the main control chip U4.

[0012] Preferably, the charging detection circuit includes a resistor R4 and a resistor R5. One end of the resistor R4 is connected to the solar panel. The other end of the resistor R4 is grounded through the resistor R5 and connected to an input / output pin of the main control chip U4. The main control chip U4 obtains the output voltage when the solar panel charges the battery through the charging detection circuit, and can convert the output voltage into the external light intensity, so that the charging detection circuit can be equivalent to the function of a photosensitive resistor.

[0013] The beneficial effects of the automatic power replenishment of the solar lamp control circuit of the present invention for long-term transportation and storage are as follows:

[0014] 1. By setting up the charging detection circuit, it can enter the sleep mode during long-term transportation, so that the power of the battery will not drop to 0, enabling it to be directly used when delivered to the user, avoiding the user from returning the goods thinking that the solar lamp is damaged. In addition, it can also protect the battery and improve the service life of the battery.

[0015] 2. The main control chip U4 obtains the output voltage when the solar panel charges the battery through the charging detection circuit, and can convert the output voltage into the external light intensity, so that the charging detection circuit can be equivalent to the function of a photosensitive resistor, thereby eliminating the photosensitive resistor and effectively reducing the cost.

[0016] 3. By setting up a battery detection circuit, the solar lamp can enter the exhibition hall mode and maintain the battery power between 20% and 80%, maximizing the battery life and improving the convenience of using the solar lamp in the exhibition hall. Brief Description of the Drawings

[0017] Figure 1 The circuit diagram of the main control chip U4 of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0018] Figure 2 The circuit diagram of the charging circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0019] Figure 3 The circuit diagram of the chip driving circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0020] Figure 4 The circuit diagram of the battery detection circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0021] Figure 5 The circuit diagram of the charging detection circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0022] Figure 6 The circuit diagram of the radar induction circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0023] Figure 7 The circuit diagram of the infrared receiving circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0024] Figure 8 The circuit diagram of the indicator lamp circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0025] Figure 9 The circuit diagram of the working circuit of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention;

[0026] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0027] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Referring to Figures 1 to 9 , an embodiment of the control circuit of the solar lamp with automatic power compensation for long-term transportation and storage according to the present invention is proposed:

[0029] An automatic power replenishment beneficial for long-term transportation and storage solar lamp control circuit, including a main control chip U4, an induction circuit, a charging circuit, a charging detection circuit, a battery detection circuit, an indicator light circuit, a working circuit, and a chip driving circuit.

[0030] The solar lamp includes a solar panel, a battery, a circuit board, and a light source board. The control circuit described in this patent is arranged on the circuit board. The solar panel is electrically connected to the battery through the charging circuit, the battery is connected to and supplies power to the main control chip U4 through the chip driving circuit, and the main control chip U4 is connected to the light source board through the working circuit.

[0031] The battery detection circuit includes a resistor R11 and a resistor R12. One end of the resistor R11 is connected to the battery, and the other end of the resistor R11 is grounded through the resistor R12 and connected to the BAT-TEST pin of the main control chip U4. The main control chip U4 can obtain the battery power through the battery detection circuit, and thus select a suitable working state according to the obtained power.

[0032] The induction circuit includes a radar induction circuit and an infrared receiving circuit. The radar induction circuit is connected to the RD-OUT pin of the main control chip U4, and the main control chip U4 can obtain information on whether there are people or objects approaching within the induction range through the radar induction circuit.

[0033] The infrared receiving circuit is connected to the IR-PORT pin of the main control chip U4. A remote control or other external devices can be connected to the main control chip U4 through the infrared receiving circuit and select a suitable working mode. In actual use, the infrared receiving circuit can also be other wireless communication circuits, such as a Bluetooth antenna circuit, etc.

[0034] The indicator light circuit includes light-emitting diodes L1, L2, L3, L4, and L5, and a resistor R15. One ends of the light-emitting diodes L1, L2, L3, L4, and L5 are respectively connected to the L1, L2, L3, L4, and L5 pins of the main control chip U4. The other ends of the light-emitting diodes L1, L2, L3, L4, and L5 are grounded through the resistor R15.

[0035] The charging detection circuit includes a resistor R4 and a resistor R5. One end of the resistor R4 is connected to the solar panel, and the other end of the resistor R4 is grounded through the resistor R5 and connected to the CDS pin of the main control chip U4. The main control chip U4 obtains the output voltage of the solar panel through the charging detection circuit, and the external light intensity can be converted through the output voltage, so that the charging detection circuit can be equivalent to the function of a photosensitive resistor.

[0036] When in use, the user can use the remote control to select the working state of the solar lamp through the infrared receiving circuit. Under normal conditions, the main control chip U4 can detect the output voltage of the solar panel through the charging detection circuit and convert the output voltage into the external light intensity. When the external light intensity is high, the radar induction circuit does not emit light even if it senses a person. When the external light intensity is low, the radar induction circuit emits light when it senses a person. In this working mode, the charging detection circuit can act as a photoresistor, thus effectively reducing costs.

[0037] When the main control chip U4 detects that the output voltage is 0 for more than 24 hours, it means that the solar lamp is in the transportation state. The main control chip U4 enters the sleep state, that is, the transportation mode. At this time, neither the radar induction circuit nor the infrared receiving circuit can wake up the solar lamp until the main control chip U4 detects that the output voltage is not 0 and exits the sleep mode.

[0038] The user can also use the remote control to select the solar lamp to the exhibition hall mode through the infrared receiving circuit. In the exhibition hall, the solar lamp cannot obtain enough light for charging. After being used for a period of time, it needs to be taken outside for charging or sun exposure for energy replenishment. After setting to the exhibition hall mode, the main control chip U4 will obtain the battery power through the battery detection circuit. When the power drops below 20%, the main control chip U4 will not work even if it receives the information sent by the radar induction circuit. It charges through the lights in the exhibition hall until the power reaches more than 80% and then enters the normal working state. Thus, the power can be maintained between 20% and 80%, maximizing the battery life and improving the convenience of use in the exhibition hall.

[0039] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An automatic power replenishment control circuit for a solar lamp facilitating long-term transportation and storage. The solar lamp includes a solar panel, a battery, a circuit board, and a light source board. It is characterized in that the control circuit is arranged on the circuit board. The control circuit includes a main control chip U4, an induction circuit, a charging circuit, a charging detection circuit, a working circuit, and a chip driving circuit; the solar panel is electrically connected to the battery through the charging circuit, the battery is connected to and supplies power to the main control chip U4 through the chip driving circuit, the main control chip U4 is connected to the light source board through the working circuit, and the induction circuit is connected to the main control chip U4; the input end of the charging detection circuit is connected to the solar panel, and the output end of the charging detection circuit is connected to the main control chip U4. The main control chip U4 can obtain the output voltage of the solar panel through the charging detection circuit. If the output voltage is 0 for a long time, it means the solar lamp is in the transportation state, and the main control chip U4 enters the sleep state.

2. The automatic power replenishment solar lamp control circuit according to claim 1 is characterized in that, The control circuit further includes a battery detection circuit. The battery detection circuit includes a resistor R11 and a resistor R12. One end of the resistor R11 is connected to the battery, and the other end of the resistor R11 is grounded through the resistor R12 and connected to an input / output pin of the main control chip U4. The main control chip U4 can obtain the battery power through the battery detection circuit, so as to select a suitable working state according to the obtained power.

3. The automatic power compensation solar lamp control circuit according to claim 1 is characterized in that, The induction circuit includes a radar induction circuit. The radar induction circuit is connected to an input / output pin of the main control chip U4. The main control chip U4 can obtain information on whether there are people or objects approaching within the induction range through the radar induction circuit.

4. The automatic power replenishment solar lamp control circuit according to claim 1 or 3, characterized in that, The induction circuit further includes an infrared receiving circuit. The infrared receiving circuit is connected to an input / output pin of the main control chip U4. A remote control or other external devices can be connected to the main control chip U4 through the infrared receiving circuit and select a suitable working mode.

5. The automatic power replenishment solar lamp control circuit according to claim 1 is characterized in that The control circuit further includes an indicator light circuit. The indicator light circuit is connected to an input / output pin of the main control chip U4.

6. The automatic power compensation solar lamp control circuit according to claim 1 is characterized in that, The charging detection circuit includes a resistor R4 and a resistor R5. One end of the resistor R4 is connected to the solar panel, and the other end of the resistor R4 is grounded through the resistor R5 and connected to an input / output pin of the main control chip U4. The main control chip U4 obtains the output voltage when the solar panel charges the battery through the charging detection circuit, and can convert the output voltage into the external light intensity, so that the charging detection circuit can be equivalent to the function of a photosensitive resistor.

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