Solar lamp control module, solar lamp power supply device and solar lamp system

Abstract

The invention relates to a solar lamp control module, a solar lamp power supply device and a solar lamp system. The solar lamp control module comprises a charging circuit, a first power supply circuit and a control circuit. The charging circuit comprises a first switch assembly and an energy storage assembly, one end of the first switch assembly is connected with an external solar power generation assembly, and the other end of the first switch assembly is connected with the energy storage assembly; the first power supply circuit comprises a second switch assembly and an inversion booster circuit, one end of the second switch assembly is connected with the energy storage assembly, the other end of the second switch assembly is connected with the input end of the inversion booster circuit, and the output end of the inversion booster circuit is connected with an external lamp; the control circuit is connected with the first switch assembly and the second switch assembly and used for controlling the first switch assembly and the second switch assembly to be switched on and off according to the ambient light signals. The solar lamp control module can improve the performance of a solar lamp system.

Description

Technical Field

[0001] The present application relates to the technical field of solar lamps, and in particular to a solar lamp control module, a solar lamp power supply device and a solar lamp system. Background Art

[0002] With the development of solar energy technology, the cost of solar power generation components (such as photovoltaic panels) has been greatly reduced. Since solar lamps have the advantages of safety, high efficiency, energy saving and environmental protection, solar lamps have attracted great attention and have been widely used in daily life.

[0003] However, the performance of current solar lamp systems needs to be further improved. Summary of the invention

[0004] Based on this, it is necessary to provide a solar lamp control module, a solar lamp power supply device and a solar lamp system which can improve the performance of the solar lamp system.

[0005] In a first aspect, the present application provides a solar lamp control module, which includes: a charging circuit, a first power supply circuit and a control circuit; the charging circuit includes a first switch component and an energy storage component, one end of the first switch component is connected to an external solar power generation component, and the other end of the first switch component is connected to the energy storage component; the first power supply circuit includes a second switch component and an inverter boost circuit, one end of the second switch component is connected to the energy storage component, the other end of the second switch component is connected to the input end of the inverter boost circuit, and the output end of the inverter boost circuit is connected to an external lamp; the control circuit is connected to both the first switch component and the second switch component, and is used to control the switching of the first switch component and the second switch component according to an ambient light signal.

[0006] In one embodiment, the ambient light signal includes a first ambient light signal and a second ambient light signal, and the signal strength of the first ambient light signal is greater than the signal strength of the second ambient light signal; when the control circuit receives the first ambient light signal, the control circuit sends a first drive signal with a first effective potential to the first switch component to open the first switch component so that the solar power generation component charges the energy storage component; the control circuit also sends a second drive signal with a second failure potential to the second switch component to turn off the second switch component so that the energy storage component stops supplying power to the lamp through the inverter boost circuit.

[0007] In one embodiment, when the control circuit receives the second ambient light signal, the control circuit sends a second drive signal having a second effective potential to the second switch component to open the second switch component, so that the energy storage component supplies power to the lamp through the inverter boost circuit.

[0008] In one embodiment, the solar lamp control module also includes a detection circuit, a second power supply circuit and a third switch component; the detection circuit is connected in parallel with the energy storage component; one end of the second power supply circuit is connected to the AC power; the first end of the third switch component is connected to the output end of the inverter boost circuit, the second end of the third switch component is connected to the other end of the second power supply circuit, and the third end of the third switch component is connected to the lamp; the control circuit is also connected to both the detection circuit and the third switch component, and is used to control the switch of the third switch component according to the detection signal.

[0009] In one of the embodiments, the ambient light signal includes a first ambient light signal and a second ambient light signal, and the signal strength of the first ambient light signal is greater than the signal strength of the second ambient light signal; when the control circuit receives the first ambient light signal, the control circuit sends a third drive signal with a third effective potential to the third switch component, so that the inverter boost circuit is connected to the lamp; when the control circuit receives the second ambient light signal, when the detection signal is less than or equal to the threshold signal, the control circuit sends a third drive signal with a third failure potential to the third switch component, so that the second power supply circuit is connected to the lamp, so as to power the lamp through the AC power.

[0010] In one embodiment, the first switch component includes a first switch transistor, a second switch transistor and a first pull-up resistor; the first electrode of the first switch transistor is connected to the first end of the solar power generation component, the second electrode of the first switch transistor is connected to the first end of the energy storage component, and the control electrode of the first switch transistor is connected to the first electrode of the second switch transistor; the second electrode of the second switch transistor is connected to the second end of the solar power generation component and the second end of the energy storage component and is grounded, and the control electrode of the second switch transistor is connected to the control circuit; the first end of the first pull-up resistor is connected between the first electrode of the first switch transistor and the first end of the solar power generation component, and the second end of the first pull-up resistor is connected between the control electrode of the first switch transistor and the first electrode of the second switch transistor.

[0011] In one embodiment, the second switch component includes a third switch transistor, a fourth switch transistor and a second pull-up resistor; the first electrode of the third switch transistor is connected to the first end of the energy storage component, the second electrode of the third switch transistor is connected to the input end of the inverter boost circuit, and the control electrode of the third switch transistor is connected to the first electrode of the fourth switch transistor; the second electrode of the fourth switch transistor is connected to the second end of the energy storage component and the ground end of the inverter boost circuit and is grounded, and the control electrode of the fourth switch transistor is connected to the control circuit; the first end of the second pull-up resistor is connected between the first electrode of the third switch transistor and the first end of the energy storage component, and the second end of the second pull-up resistor is connected between the control electrode of the third switch transistor and the first electrode of the fourth switch transistor.

[0012] In one embodiment, the third switch component includes a fifth switch transistor and a relay; the control electrode of the fifth switch transistor is connected to the control circuit, the first electrode of the fifth switch transistor is connected to the control end of the relay, and the second electrode of the fifth switch transistor is grounded; the power supply end of the relay is connected to the energy storage component, the normally open end of the relay is connected to the output end of the inverter boost circuit, the normally closed end of the relay is connected to the other end of the second power supply circuit, and the common end of the relay is connected to the lamp.

[0013] In one embodiment, the solar lamp control module further includes a fourth switch component, a first end of the fourth switch component is connected to the third end of the third switch component, and a second end of the fourth switch component is connected to the lamp.

[0014] In one embodiment, the charging circuit further includes a charging management circuit connected between the first switch component and the energy storage component.

[0015] In a second aspect, the present application further provides a solar lamp power supply device, which includes a solar power generation component and a solar lamp control module as described in any one of the first aspects above.

[0016] In a third aspect, the present application further provides a solar lamp system, which includes a lamp and the solar lamp power supply device described in the second aspect.

[0017] The above-mentioned solar lamp control module is provided with an inverter boost circuit, which can not only improve the output voltage to ensure the normal operation of the lamp when the output voltage of the energy storage component decreases due to aging or bad weather conditions, that is, improve the stability of the solar lamp system, but also adjust the output voltage according to actual needs, so that the lamp can maintain a high luminous efficiency under different lighting conditions, which helps to make full use of the electric energy generated by the energy storage component and reduce energy waste, that is, improve the energy utilization efficiency of the solar lamp system. In addition, the solar lamp control module as a whole can be used after being connected to the solar power generation component and the lamp, and its installation and wiring are relatively simple, so the maintenance cost is low. In short, the solar lamp control module of the present application can improve the performance of the solar lamp system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1This is one of the structural schematic diagrams of a solar lamp control module in one embodiment;

[0020] Figure 2 This is a second structural diagram of a solar lamp control module in an embodiment;

[0021] Figure 3 is a schematic structural diagram of a first switch assembly in an embodiment;

[0022] Figure 4 is a schematic structural diagram of a second switch assembly in one embodiment;

[0023] Figure 5 is a schematic structural diagram of a third switch assembly in one embodiment;

[0024] Figure 6 This is a third structural diagram of a solar lamp control module in an embodiment;

[0025] Figure 7 This is a fourth structural diagram of a solar lamp control module in an embodiment;

[0026] Figure 8 This is the fifth structural diagram of a solar lamp control module in an embodiment.

[0027] Description of reference numerals:

[0028] 10-solar lamp control module, 20-solar power generation components, 30-lamp, 40-mains electricity;

[0029] 101-charging circuit, 1011-first switch component, 1012-energy storage component, 1013-charging management circuit; 102-first power supply circuit, 1021-second switch component, 1022-inverter boost circuit; 103-control circuit;

[0030] 201-detection circuit, 202-second power supply circuit, 203-third switch component, 601-fourth switch component;

[0031] P-photosensitive sensor; Q1-first switch transistor, Q2-second switch transistor, Q3-third switch transistor, Q4-fourth switch transistor, Q5-fifth switch transistor; K1-relay, K2-double-pole double-throw switch; D1-first diode;

[0032] R1-first pull-up resistor, R2-first pull-down resistor, R3-first drive resistor, R4-second drive resistor, R5-second pull-up resistor, R6-second pull-down resistor, R7-third drive resistor, R8-fourth drive resistor, R9-fifth drive resistor, R10-sixth drive resistor, R11-seventh drive resistor, R12-first sampling resistor, R13-second sampling resistor. DETAILED DESCRIPTION

[0033] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0035] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0036] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0037] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0038] In one embodiment, Figure 1 As shown, a solar lamp control module is provided. The solar lamp control module 10 includes: a charging circuit 101 , a first power supply circuit 102 and a control circuit 103 .

[0039] The charging circuit 101 includes a first switch component 1011 and an energy storage component 1012. One end of the first switch component 1011 is connected to an external solar power generation component 20, and the other end of the first switch component 1011 is connected to the energy storage component 1012. The first power supply circuit 102 includes a second switch component 1021 and an inverter boost circuit 1022. One end of the second switch component 1021 is connected to the energy storage component 1012, and the other end of the second switch component 1021 is connected to the input end of the inverter boost circuit 1022. The output end of the inverter boost circuit 1022 is connected to an external lamp 30. The control circuit 103 is connected to both the first switch component 1011 and the second switch component 1021, and is used to control the switching of the first switch component 1011 and the second switch component 1021 according to the ambient light signal.

[0040] The solar power generation assembly 20 includes a photovoltaic panel, which may be composed of solar cells. The energy storage assembly 1012 includes a battery unit and a management system (Battery Management System, BMS), etc. Of course, the energy storage assembly 1012 may only include a battery unit.

[0041] The first switch component 1011 and the second switch component 1021 each include at least one semiconductor power device, and the specific structures of the first switch component 1011 and the second switch component 1021 are not limited herein. The first switch component 1011 and the second switch component 1021 are both used to realize opening and closing under the control of the control circuit 103.

[0042] The inverter boost circuit 1022 includes components such as a transformer, and the specific structure of the inverter boost circuit 1022 is not limited here. The inverter boost circuit 1022 is used to increase the output voltage of the energy storage component 1012, increase the output power, and convert the direct current output by the energy storage component 1012 into alternating current.

[0043] The control circuit may include an MCU (Microcontroller Unit), which is also called a single chip microcomputer, and is used to control the switching of the first switch component 1011 and the second switch component 1021 .

[0044] The measurement of the ambient light signal can be achieved by a photosensor P. The ambient light signal includes a first ambient light signal and a second ambient light signal, and the signal strength of the first ambient light signal is greater than the signal strength of the second ambient light signal. The first ambient light signal and the second ambient light signal can be specifically judged by a signal strength threshold, that is, when the signal strength of the ambient light signal received by the control circuit 103 is greater than or equal to the signal strength threshold, the received ambient light signal is the first ambient light signal; when the signal strength of the ambient light signal received by the control circuit 103 is less than the signal strength threshold, the received ambient light signal is the second ambient light signal. Among them, the first ambient light signal is used to represent the day; the second ambient light signal is used to represent the night.

[0045] Based on this, Figure 1 The working principle of the solar lamp control module 10 shown is as follows: when the control circuit 103 receives the first ambient light signal, the control circuit 103 sends a first drive signal PWM1 having a first effective potential (e.g., a high level potential) to the first switch component 1011 to turn on the first switch component 1011, so that the solar power generation component 20 charges the energy storage component 1012; the control circuit 103 also sends a second drive signal PWM2 having a second failure potential (e.g., a low level potential) to the second switch component 1021 to turn off the second switch component 1021, so that the energy storage component 1012 stops supplying power to the lamp 30 through the inverter boost circuit 1022. In other words, during the day, the first switch component 1011 is turned on and the second switch component 1021 is turned off, so that the energy storage component 1012 is charged and the lamp 30 is turned off during the day.

[0046] When the control circuit 103 receives the second ambient light signal, the control circuit 103 sends a second driving signal PWM2 having a second effective potential (e.g., a high level potential) to the second switch component 1021 to turn on the second switch component 1021, so that the energy storage component 1012 supplies power to the lamp through the inverter boost circuit 1022. In other words, at night, the second switch component 1021 is turned on to achieve lighting at night.

[0047] It should be noted that when the control circuit 103 receives the second ambient light signal, the control circuit 103 can continue to send the first drive signal PWM1 having a first effective potential to the first switch component 1011 to open the first switch component 1011, so that the solar power generation component 20 charges the energy storage component 1012. In this way, the energy storage component 1012 can continue to be charged when the environment is bright during the night time period.

[0048] It can be understood that when the control circuit 103 receives the second ambient light signal, the control circuit 103 can also send a first drive signal PWM1 having a first failure potential (e.g., a low level potential) to the first switch component 1011, or not send any drive signal, so as to turn off the first switch component 1011, so that the solar power generation component 20 stops charging the energy storage component 1012, thereby achieving a relatively reduced power consumption of the control circuit 103 during the night time period.

[0049] The above-mentioned solar lamp control module 10 is provided with an inverter boost circuit 1022, which can not only improve the output voltage to ensure that the lamp 30 can work normally when the output voltage of the energy storage component 1012 decreases due to aging or bad weather conditions, that is, improve the stability of the solar lamp system, but also adjust the output voltage according to actual needs, so that the lamp 30 can maintain a high luminous efficiency under different lighting conditions, which helps to make full use of the electric energy generated by the energy storage component 1012 and reduce energy waste, that is, improve the energy utilization efficiency of the solar lamp system. In addition, the solar lamp control module 10 as a whole can be used after being connected to the solar power generation component 20 and the lamp 30, and its installation and wiring are relatively simple, so the maintenance cost is low. In short, the solar lamp control module 10 of the present application can improve the performance of the solar lamp system.

[0050] In one embodiment, if Figure 2 As shown, based on Figure 1 Another solar lamp control module is provided. The solar lamp control module 10 also includes a detection circuit 201, a second power supply circuit 202 and a third switch component 203; the detection circuit 201 is connected in parallel with the energy storage component 1012; one end of the second power supply circuit 202 is connected to the mains 40; the first end of the third switch component 203 is connected to the output end of the inverter boost circuit 1022, the second end of the third switch component 203 is connected to the other end of the second power supply circuit 202, and the third end of the third switch component 203 is connected to the lamp 30; the control circuit 103 is also connected to both the detection circuit 201 and the third switch component 203, and is used to control the switch of the third switch component 203 according to the detection signal.

[0051] Among them, the detection circuit 201 includes a first sampling resistor R12 and a second sampling resistor R13 connected in series. The electrical connection point between the first sampling resistor R12 and the second sampling resistor R13 is connected to the control circuit 103. The control circuit 103 can obtain the detection signal of the energy storage component 1012 through the detection circuit 201, and specifically can obtain the voltage signal of the energy storage component 1012 to realize undervoltage detection of the energy storage component 1012. When the detection signal is less than the threshold signal, that is, when the voltage signal is less than or equal to the voltage threshold, it indicates that the energy storage component 1012 is undervoltage. Of course, the control circuit 103 can also detect whether the energy storage component 1012 is fully charged through the detection circuit 201.

[0052] The second power supply circuit 202 includes a mains interface connected to the mains 40. The third switch assembly 203 includes components such as relays. By properly connecting the third switch assembly 203, it can be achieved that when the third switch assembly 203 is turned on, the lamp 30 is connected to the inverter boost circuit 1022; when the third switch assembly 203 is turned off, the lamp 30 is connected to the mains 40. Of course, it can also be achieved that when the third switch assembly 203 is turned off, the lamp 30 is connected to the inverter boost circuit 1022, and when the third switch assembly 203 is turned on, the lamp 30 is connected to the mains 40.

[0053] Based on this, Figure 2 The working principle of the solar lamp control module 10 shown is as follows: when the control circuit 103 receives the second ambient light signal, when the detection signal is less than or equal to the threshold signal, the control circuit 103 sends a third drive signal PWM3 having a third failure potential (e.g., a low level potential) to the third switch component 203, so that the second power supply circuit 202 is connected to the lamp 30 to supply power to the lamp 30 through the mains 40. In other words, at night, when the energy storage component 1012 is undervoltage, the lamp 30 disconnects the inverter boost circuit 1022 and connects to the mains 40.

[0054] When the control circuit 103 receives the first ambient light signal, the control circuit 103 sends a third driving signal PWM3 having a third effective potential (e.g., a high level potential) to the third switch component 203, so that the inverter boost circuit 1022 is connected to the lamp 30. In other words, during the day, the lamp 30 is connected to the inverter boost circuit 1022 and disconnects the mains 40, but since the second switch component 1021 is turned off during the day, even if the lamp 30 is connected to the inverter boost circuit 1022, the lamp 30 is still out of power.

[0055] In this embodiment, when the energy storage component 1012 is undervoltage, the AC power 40 is connected to power the lamp 30, thereby realizing the complementarity of solar power supply and AC power, ensuring that the lamp 30 can also work normally when the energy storage component 1012 is undervoltage, and further ensuring the stability of the solar lamp system.

[0056] In one embodiment, if Figure 3 As shown, the present application provides a first switch component, the first switch component 1011 includes a first switch transistor Q1, a second switch transistor Q2 and a first pull-up resistor R1; the first electrode of the first switch transistor Q1 is connected to the first end of the solar power generation component 20, the second electrode of the first switch transistor Q1 is connected to the first end of the energy storage component 1012, and the control electrode of the first switch transistor Q1 is connected to the first electrode of the second switch transistor Q2; the second electrode of the second switch transistor Q2 is connected to the second end of the solar power generation component 20 and the second end of the energy storage component 1012 and is grounded, and the control electrode of the second switch transistor Q2 is connected to the control circuit 103; the first end of the first pull-up resistor R1 is connected between the first electrode of the first switch transistor Q1 and the first end of the solar power generation component 20, and the second end of the first pull-up resistor R1 is connected between the control electrode of the first switch transistor Q1 and the first electrode of the second switch transistor Q2.

[0057] Wherein, the first switch transistor Q1 and the second switch transistor Q2 can both be MOS tubes (Metal-Oxide-Semiconductor Field-Effect Transistor), or MOS tubes with diodes connected to the source and drain, or IGBT tubes (Insulated Gate Bipolar Transistor), or triodes. Preferably, the first switch transistor Q1 and the second switch transistor Q2 are both MOS tubes or MOS tubes with diodes connected to the source and drain.

[0058] The first switch transistor Q1 and the second switch transistor Q2 may be MOS transistors with different channels. For example, the first switch transistor Q1 may be a P-type MOS transistor, and the second switch transistor Q2 may be an N-type MOS transistor. The first electrode of the first switch transistor Q1 may be a source electrode, the second electrode of the first switch transistor Q1 may be a drain electrode, and the control electrode of the first switch transistor Q1 may be a gate electrode. The first electrode of the second switch transistor Q2 may be a drain electrode, the second electrode of the second switch transistor Q2 may be a source electrode, and the control electrode of the second switch transistor Q2 may be a gate electrode.

[0059] Figure 3The working principle of the first switch component 1011 shown is as follows: the control circuit 103 sends a first drive signal PWM1 having a first effective potential (e.g., a high level potential) to the second switch transistor Q2, and the second switch transistor Q2 is turned on. Due to the effect of the first pull-up resistor R1, the first switch transistor Q1 is turned on, thereby opening the first switch component 1011. The control circuit 103 sends a first drive signal PWM1 having a first failure potential (e.g., a low level potential) to the second switch transistor Q2, and the second switch transistor Q2 is turned off, thereby turning off the first switch transistor Q1, and further turning off the first switch component 1011.

[0060] In one example, continue to refer to Figure 3 As shown, the first switch component 1011 further includes a first pull-down resistor R2, a first end of the first pull-down resistor R2 is connected to a second end of the first pull-up resistor R1, and a second end of the first pull-down resistor R2 is connected to a first electrode of the second switch transistor Q2. Setting the first pull-down resistor R2 can avoid the risk of the first switch transistor Q1 being easily damaged due to overvoltage.

[0061] In another example, continue to refer to Figure 3 As shown, the first switch component 1011 also includes a first drive resistor R3 and / or a second drive resistor R4. The first end of the first drive resistor R3 is connected to the control electrode of the second switch transistor Q2, and the second end of the first drive resistor R3 is connected to the control circuit 103; the first end of the second drive resistor R4 is connected between the first end of the first drive resistor R3 and the control electrode of the second switch transistor Q2, and the second end of the second drive resistor R4 is connected to the second electrode of the second switch transistor Q2 and grounded. The first drive resistor R3 can provide current limiting protection and oscillation suppression for the second switch transistor Q2; the second drive resistor R4 can prevent the second switch transistor Q2 from being damaged by electrostatic interference.

[0062] In one embodiment, if Figure 4As shown, the present application provides a second switch component, the second switch component 1021 includes a third switch transistor Q3, a fourth switch transistor Q4 and a second pull-up resistor R5; the first electrode of the third switch transistor Q3 is connected to the first end of the energy storage component 1012, the second electrode of the third switch transistor Q3 is connected to the input end of the inverter boost circuit 1022, and the control electrode of the third switch transistor Q3 is connected to the first electrode of the fourth switch transistor Q4; the second electrode of the fourth switch transistor Q4 is connected to the second end of the energy storage component 1012 and the ground end of the inverter boost circuit 1022 and is grounded, and the control electrode of the fourth switch transistor Q4 is connected to the control circuit 103; the first end of the second pull-up resistor R5 is connected between the first electrode of the third switch transistor Q3 and the first end of the energy storage component 1012, and the second end of the second pull-up resistor R5 is connected between the control electrode of the third switch transistor Q3 and the first electrode of the fourth switch transistor Q4.

[0063] The third switch transistor Q3 and the fourth switch transistor Q4 can both be MOS transistors, or MOS transistors with diodes connected to the source and drain, or IGBT transistors, or triodes. Preferably, the third switch transistor Q3 and the fourth switch transistor Q4 are both MOS transistors or MOS transistors with diodes connected to the source and drain.

[0064] The third switch transistor Q3 and the fourth switch transistor Q4 may be MOS transistors with different channels. For example, the third switch transistor Q3 may be a P-type MOS transistor, and the fourth switch transistor Q4 may be an N-type MOS transistor. The first electrode of the third switch transistor Q3 may be a source electrode, the second electrode of the third switch transistor Q3 may be a drain electrode, and the control electrode of the third switch transistor Q3 may be a gate electrode. The first electrode of the fourth switch transistor Q4 may be a drain electrode, the second electrode of the fourth switch transistor Q4 may be a source electrode, and the control electrode of the fourth switch transistor Q4 may be a gate electrode.

[0065] Figure 4 The working principle of the second switch component 1021 shown is as follows: the control circuit 103 sends a second drive signal PWM2 with a second effective potential (for example, a high level potential) to the fourth switch transistor Q4, and the fourth switch transistor Q4 is turned on. Due to the effect of the second pull-up resistor R5, the third switch transistor Q3 is turned on, thereby realizing the opening of the second switch component 1021. The control circuit 103 sends a second drive signal PWM2 with a second failure potential (for example, a low level potential) to the fourth switch transistor Q4, and the fourth switch transistor Q4 is turned off, thereby turning off the third switch transistor Q3, and then realizing the turning off of the second switch component 1021.

[0066] In one example, continue to refer to Figure 4As shown, the second switch component 1021 further includes a second pull-down resistor R6, a first end of the second pull-down resistor R6 is connected to a second end of the second pull-up resistor R5, and a second end of the second pull-down resistor R6 is connected to a first electrode of the fourth switch transistor Q4. The second pull-down resistor R6 can avoid the risk of the third switch transistor Q3 being easily damaged due to overvoltage.

[0067] In another example, continue to refer to Figure 4 As shown, the second switch component 1021 also includes a third drive resistor R7 and / or a fourth drive resistor R8. The first end of the third drive resistor R7 is connected to the control electrode of the fourth switch transistor Q4, and the second end of the third drive resistor R7 is connected to the control circuit 103; the first end of the fourth drive resistor R8 is connected between the first end of the third drive resistor R7 and the control electrode of the fourth switch transistor Q4, and the second end of the fourth drive resistor R8 is connected to the second electrode of the fourth switch transistor Q4 and grounded. The third drive resistor R7 can provide current limiting protection and oscillation suppression for the fourth switch transistor Q4; the fourth drive resistor R8 can prevent the fourth switch transistor Q4 from being damaged by electrostatic interference.

[0068] In one embodiment, if Figure 5 As shown, a third switch component is provided, and the third switch component 203 includes a fifth switch transistor Q5 and a relay K1; the control electrode of the fifth switch transistor Q5 is connected to the control circuit 103, the first electrode of the fifth switch transistor Q5 is connected to the control end of the relay K1, and the second electrode of the fifth switch transistor Q5 is grounded; the power supply end of the relay K1 is connected to the energy storage component 1012 (marked with BAT in the figure), the normally open end of the relay K1 is connected to the output end of the inverter boost circuit 1022, the normally closed end of the relay K1 is connected to the other end of the second power supply circuit 202, and the common end of the relay K1 is connected to the lamp.

[0069] The fifth switch transistor Q5 can be a MOS transistor or a MOS transistor with a diode connected to the source and drain, or an IGBT transistor, or a triode. Preferably, the fifth switch transistor Q5 is a MOS transistor or a MOS transistor with a diode connected to the source and drain.

[0070] The fifth switch transistor Q5 may be an N-type MOS tube. The first electrode of the fifth switch transistor Q5 may be a drain electrode, the second electrode of the fifth switch transistor Q5 may be a source electrode, and the control electrode of the fifth switch transistor Q5 may be a gate electrode. The relay K1 may be a double-position switching relay, that is, having two normally open terminals, two normally closed terminals, and two common terminals.

[0071] Figure 5The working principle of the third switch component 203 shown is as follows: the control circuit 103 sends a third drive signal PWM3 with a third effective potential (e.g., a high level potential) to the fifth switch transistor Q5, the fifth switch transistor Q5 is turned on, the normally open end of the relay K1 and the common end of the relay K1 are closed, so that the inverter boost circuit 1022 is connected to the lamp 30. The control circuit 103 sends a third drive signal PWM3 with a third failure potential (e.g., a low level potential) to the fifth switch transistor Q5, the fifth switch transistor Q5 is turned off, the normally closed end of the relay K1 and the common end of the relay K1 are closed, so that the second power supply circuit 202 is connected to the lamp 30.

[0072] In one example, continue to refer to Figure 5 As shown, the third switch component 203 further includes a first diode D1, an anode of the first diode D1 is connected between the first electrode of the fifth switch transistor Q5 and the control end of the relay K1, and a cathode of the first diode D1 is connected between the power supply end of the relay K1 and the energy storage component 1012. The first diode D1 can prevent the risk of overvoltage at the control end of the relay K1 causing damage to the fifth switch transistor Q5 when the fifth switch transistor Q5 is turned off.

[0073] In another example, continue to refer to Figure 5 As shown, the third switch component 203 also includes a fifth drive resistor R9 and a sixth drive resistor R10. The first end of the fifth drive resistor R9 is connected to the control electrode of the fifth switch transistor Q5, and the second end of the fifth drive resistor R9 is connected to the control circuit 103; the first end of the sixth drive resistor R10 is connected between the first end of the fifth drive resistor R9 and the control electrode of the fifth switch transistor Q5, and the second end of the sixth drive resistor R10 is connected to the second electrode of the fifth switch transistor Q5 and grounded. The fifth drive resistor R9 can provide current limiting protection and oscillation suppression for the fifth switch transistor Q5; the sixth drive resistor R10 can prevent the fifth switch transistor Q5 from being damaged by electrostatic interference.

[0074] In one example, the third switch component 203 further includes a seventh drive resistor R11; a first end of the seventh drive resistor R11 is connected to the energy storage component 1012, and a second end of the seventh drive resistor R11 is connected to the cathode of the first diode D1. The seventh drive resistor R11 is provided to provide current limiting protection for the relay K1.

[0075] In one embodiment, if Figure 6 As shown, based on Figure 2 Another solar lamp control module is provided. The solar lamp control module 10 further includes a fourth switch component 601 . A first end of the fourth switch component 601 is connected to a third end of the third switch component 203 . A second end of the fourth switch component 601 is connected to the lamp 30 .

[0076] The fourth switch assembly 601 includes a double-pole double-throw switch K2, and the fourth switch assembly 601 can protect the maintenance personnel when they install or remove the lamp 30. For example, before installing the lamp 30, the double-pole double-throw switch K2 is turned off, and after the installation is completed, the double-pole double-throw switch K2 is turned on.

[0077] In one embodiment, if Figure 7 As shown, based on Figure 6 Another solar lamp control module is provided. The charging circuit 101 further includes a charging management circuit 1013 . The charging management circuit 1013 is connected between the first switch component 1011 and the energy storage component 1012 .

[0078] Among them, the charging management circuit 1013 can be a constant voltage and constant current circuit, which can adjust the charging method according to the real-time status of the energy storage component 1012 (such as voltage, current and temperature, etc.), ensure that the energy storage component 1012 is charged in the best way, help to extend the service life of the energy storage component 1012, and improve its charging efficiency. The charging management circuit 1013 can also prevent the energy storage component 1012 from overcharging and / or over-discharging, thereby protecting the energy storage component 1012 from damage. For example, when the energy storage component 1012 is close to being fully charged, the charging management circuit 1013 will automatically reduce the charging current to prevent the energy storage component 1012 from being overcharged.

[0079] In summary, based on the above Figures 1 to 7 , provides another solar lamp control module, such as Figure 8 As shown, it is the most detailed solar lamp control module. Figure 8 The connection relationship and working principle of each device have been explained in detail above and will not be repeated here.

[0080] In one embodiment, the present application further provides a solar lamp power supply device, which includes a solar power generation component and a solar lamp control module described in any one of the above solar lamp control module embodiments.

[0081] In one embodiment, the present application further provides a solar lamp system, which includes a lamp and the solar lamp power supply device described in the above solar lamp power supply device embodiment. The solar lamp system in this embodiment can be applied to street lamp scenes.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A solar lamp control module, characterized in that: The solar lamp control module includes: a charging circuit, a first power supply circuit and a control circuit; The charging circuit includes a first switch component and an energy storage component, one end of the first switch component is connected to an external solar power generation component, and the other end of the first switch component is connected to the energy storage component; The first power supply circuit includes a second switch component and an inverter boost circuit, one end of the second switch component is connected to the energy storage component, the other end of the second switch component is connected to the input end of the inverter boost circuit, and the output end of the inverter boost circuit is connected to an external lamp; The control circuit is connected to both the first switch component and the second switch component, and is used to control the switching of the first switch component and the second switch component according to the ambient light signal.

2. The solar lamp control module according to claim 1, characterized in that: The ambient light signal comprises a first ambient light signal and a second ambient light signal, wherein the signal strength of the first ambient light signal is greater than the signal strength of the second ambient light signal; When the control circuit receives the first ambient light signal, the control circuit sends a first drive signal having a first effective potential to the first switch component to turn on the first switch component, so that the solar power generation component charges the energy storage component; The control circuit also sends a second drive signal having a second failure potential to the second switch component to turn off the second switch component, so that the energy storage component stops supplying power to the lamp through the inverter boost circuit.

3. The solar lamp control module according to claim 2, characterized in that: When the control circuit receives the second ambient light signal, the control circuit sends a second drive signal having a second effective potential to the second switch component to open the second switch component, so that the energy storage component supplies power to the lamp through the inverter boost circuit.

4. The solar lamp control module according to claim 1, characterized in that: The solar lamp control module also includes a detection circuit, a second power supply circuit and a third switch component; The detection circuit is connected in parallel with the energy storage component; one end of the second power supply circuit is connected to the mains; the first end of the third switch component is connected to the output end of the inverter boost circuit, the second end of the third switch component is connected to the other end of the second power supply circuit, and the third end of the third switch component is connected to the lamp; The control circuit is also connected to both the detection circuit and the third switch component, and is used to control the switching of the third switch component according to the detection signal.

5. The solar lamp control module according to claim 4, characterized in that: The ambient light signal comprises a first ambient light signal and a second ambient light signal, wherein the signal strength of the first ambient light signal is greater than the signal strength of the second ambient light signal; When the control circuit receives the first ambient light signal, the control circuit sends a third driving signal having a third effective potential to the third switch component, so that the inverter boost circuit is connected to the lamp; When the control circuit receives the second ambient light signal, when the detection signal is less than or equal to the threshold signal, the control circuit sends a third drive signal with a third failure potential to the third switch component, so that the second power supply circuit is connected to the lamp to power the lamp through the AC power.

6. The solar lamp control module according to any one of claims 1 to 5, characterized in that: The first switch component includes a first switch transistor, a second switch transistor and a first pull-up resistor; The first electrode of the first switch transistor is connected to the first end of the solar power generation component, the second electrode of the first switch transistor is connected to the first end of the energy storage component, and the control electrode of the first switch transistor is connected to the first electrode of the second switch transistor; The second electrode of the second switch transistor is connected to the second end of the solar power generation component and the second end of the energy storage component and is grounded, and the control electrode of the second switch transistor is connected to the control circuit; The first end of the first pull-up resistor is connected between the first electrode of the first switch transistor and the first end of the solar power generation component, and the second end of the first pull-up resistor is connected between the control electrode of the first switch transistor and the first electrode of the second switch transistor.

7. The solar lamp control module according to any one of claims 1 to 5, characterized in that: The second switch component includes a third switch transistor, a fourth switch transistor and a second pull-up resistor; The first electrode of the third switch transistor is connected to the first end of the energy storage component, the second electrode of the third switch transistor is connected to the input end of the inverter boost circuit, and the control electrode of the third switch transistor is connected to the first electrode of the fourth switch transistor; The second electrode of the fourth switch transistor is connected to the second end of the energy storage component and the grounding end of the inverter boost circuit and is grounded, and the control electrode of the fourth switch transistor is connected to the control circuit; The first end of the second pull-up resistor is connected between the first electrode of the third switch transistor and the first end of the energy storage component, and the second end of the second pull-up resistor is connected between the control electrode of the third switch transistor and the first electrode of the fourth switch transistor.

8. The solar lamp control module according to claim 4 or 5, characterized in that: The third switch assembly includes a fifth switch transistor and a relay; The control electrode of the fifth switch transistor is connected to the control circuit, the first electrode of the fifth switch transistor is connected to the control end of the relay, and the second electrode of the fifth switch transistor is grounded; The power supply end of the relay is connected to the energy storage component, the normally open end of the relay is connected to the output end of the inverter boost circuit, the normally closed end of the relay is connected to the other end of the second power supply circuit, and the common end of the relay is connected to the lamp.

9. The solar lamp control module according to claim 4 or 5, characterized in that: The solar lamp control module also includes a fourth switch component, a first end of the fourth switch component is connected to the third end of the third switch component, and a second end of the fourth switch component is connected to the lamp.

10. The solar lamp control module according to claim 1, characterized in that: The charging circuit also includes a charging management circuit, which is connected between the first switch component and the energy storage component.

11. A solar lamp power supply device, characterized in that: The solar lamp power supply device comprises a solar power generation component and a solar lamp control module as described in any one of claims 1 to 10 above.

12. A solar light system, characterized in that: The solar lamp system comprises a lamp and the solar lamp power supply device as claimed in claim 11.

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