WO2021051263A1

WO2021051263A1 - Candle lamp and circuit for implementing persistence of vision effect thereof

Info

Publication number: WO2021051263A1
Application number: PCT/CN2019/106156
Authority: WO
Inventors: 武文静
Original assignee: 武文静
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2021-03-25
Also published as: CN112823570B; CN112823570A

Abstract

The present application relates to the technical field of candle lamps and provides a candle lamp and a circuit for implementing a persistence of vision effect thereof. According to embodiments of the present application, an optical signal in an environment is collected by a daylighting panel and is converted into a weak current signal, so that power supply can be implemented by using the optical signal in the environment, which is low-carbon and environmentally-friendly, and it is not required to provide an additional battery; the weak current signal is collected by means of an I/O port of a controller to charge an energy storage module, so that the weak current signal can be effectively collected, and the weak current signal is directly collected by means of the I/O port, which is low in power consumption and can effectively reduce power loss; a pulse signal is output to at least one LED lamp by means of the controller, so as to adjust the magnitude and frequency of a drive current signal output by the energy storage module to the at least one LED lamp, thereby driving the at least one LED lamp to flicker and implementing the persistence of vision effect of the candle lamp. The present invention may implement a more realistic flame jumping effect, does not need to provide a swing device, and is simple in structure and low in power consumption.

Description

A candle lamp and its visual persistence effect realization circuit

Technical field

The application belongs to the technical field of candle lamps, and in particular relates to a candle lamp and a circuit for realizing a visual persistence effect.

Background technique

The shape of the candle lamp is similar to that of a candle, which can visually realize the flame flicker effect of the candle without producing smoke or carcinogens, and is widely favored by consumers. The candle light usually achieves the flame bounce effect by controlling the LED light to flicker or driving the flame piece to swing through a swinging device, and the LED light or swinging device is powered by a battery.

technical problem

Existing candle lights usually achieve the flame bounce effect by controlling the blinking of the LED lamp or driving the flame piece to swing by a swing device. The LED lamp or the swing device is powered by a battery, and the flame bounce effect is not ideal and the battery needs to be replaced or recharged regularly.

Technical solutions

The first aspect of the embodiments of the present application provides a circuit for implementing a visual persistence effect of a candle lamp, which includes a lighting board, a controller, an energy storage module, and at least one LED lamp;

The daylighting board is electrically connected to the first I/O port of the controller, the controller is electrically connected to the energy storage module, and at least one second I/O port of the controller is respectively connected to the at least one One LED lamp is electrically connected in a one-to-one correspondence, and the energy storage module is electrically connected with the at least one LED lamp;

The daylighting board is used to collect light signals in the environment and convert them into weak electric signals;

The controller is used for:

Collecting the weak current signal through the first I/O port to charge the energy storage module;

A pulse signal is output to the at least one LED lamp through the at least one second I/O port, so as to adjust the magnitude and frequency of the driving current signal output by the energy storage module to the at least one LED lamp, and drive the at least one LED lamp. One LED light flashes to realize the visual persistence effect of the candle light.

In one embodiment, the visual persistence effect realization circuit includes at least two LED lights, and the pulse signals output by the controller to the at least two LED lights have the same duty cycle and the starting time point of the rising edge different;

Alternatively, the duty ratios of the pulse signals output by the controller to the at least two LED lamps are different.

In one embodiment, the duty cycle of the pulse signal is greater than 0 and less than or equal to 1/24.

In an embodiment, the visual persistence effect realization circuit includes two of the LED lights;

The duty cycle of the pulse signal output by the controller to one of the LED lights is 1/24;

The duty ratio of the pulse signal output by the controller to the other LED lamp is 1/48.

In one embodiment, the controller includes a core and an electric gathering element, an analog-to-digital converter, a voltage comparator, and a PWM chip electrically connected to the core. The electric gathering element is also connected to the daylighting board, the An analog-to-digital converter is electrically connected to the PWM chip, the analog-to-digital converter is also electrically connected to the voltage comparator, and the PWM chip is also electrically connected to the energy storage module;

The electric gathering element is used to collect the weak electric signal output by the daylighting board through the first I/O port, and gather the weak electric signal;

The analog-to-digital converter is used to sample the voltage of the collected weak electric signal;

The voltage comparator is used to compare the voltage of the collected weak electric signal with a preset voltage threshold;

The core is configured to wake up the PWM chip when the voltage of the gathered weak current signal is greater than a preset voltage threshold;

The PWM chip is used to convert the collected weak current signal into a current signal of a preset current value to charge the energy storage module.

In one embodiment, the electrical gathering element includes at least one of a MOS tube, a charge storage diode, a capacitor, and an electrical coupling element.

In an embodiment, the controller further includes a register and a timer electrically connected to the core;

The kernel is used for:

Power-on resets the register and the timer according to the weak current signal, and initializes the system clock and user data to wake up the controller; wherein the system clock is used to start timing after initialization, and the user data includes The preset voltage threshold and the preset current value;

After waking up the controller, triggering the controller to enter the sleep state.

In an embodiment, the controller further includes a low-voltage detection chip electrically connected to the core and the energy storage module;

The low voltage detection chip is used for:

Detecting the voltage and power of the energy storage module to obtain low-voltage detection data;

When the voltage or power of the energy storage module reaches a preset percentage of the capacity of the energy storage module, output a low voltage signal to the core;

The core is also used to wake up the controller when receiving the low voltage signal, so that the controller enters a working state.

In an embodiment, the visual persistence effect realization circuit further includes a switch electrically connected to the controller;

The switch is used for a user to send an LED control signal to the core;

The controller is also used to control the working state of each of the LED lights according to the LED control signal.

In one embodiment, the daylighting panel includes a weak photovoltaic panel, and the energy storage module includes at least one of a capacitor, a rechargeable battery, a memory metal, a fuel cell, a primary battery, a secondary battery, and a flash storage battery.

The second aspect of the embodiments of the present application provides a candle lamp, which includes the visual persistence effect realization circuit as described in the first aspect of the embodiments of the present application.

In one embodiment, the daylighting panel is a flexible daylighting panel, the flexible daylighting panel constitutes the hollow shell of the candle lamp, and the controller, the energy storage module and the at least one LED lamp are arranged in In the housing, the housing includes a light-transmitting area.

In one embodiment, the housing is in the shape of a candle, the housing includes a hollow main housing in the shape of a candle body and a flame piece in the shape of a candle, and the controller and the energy storage module are arranged on the main In the housing, the daylighting board constitutes the main housing, the at least one LED lamp is arranged at the junction of the main housing and the flame piece, and the junction is a light-transmitting area.

In one embodiment, the candle lamp includes a hollow shell, the shell includes a light-transmitting area, and the daylighting board, the controller, the energy storage module and the at least one LED lamp are arranged in the In the housing, the daylighting board and the at least one LED lamp are located in the light-transmitting area.

In one embodiment, the housing is in the shape of a candle, the housing includes a hollow main housing in the shape of a candle body and a flame piece in the shape of a candle, and the controller and the energy storage module are arranged on the main In the housing, the daylighting board and the at least one LED lamp are arranged at the junction of the main housing and the flame piece, and the junction and all or part of the main housing are the transparent Light area.

In one embodiment, the flame piece is a free-form surface condenser, which is used to converge the light emitted by the at least one LED lamp on the surface of the flame piece.

Beneficial effect

The embodiment of the application provides a circuit for realizing the visual persistence effect of a candle light including a lighting board, a controller, an energy storage module and at least one LED lamp. The light signal in the environment is collected by the lighting board and converted into a weak electrical signal. Use the light signal in the environment to achieve power supply, thereby effectively saving energy consumption, low carbon and environmental protection, without additional batteries; collecting weak current signals through the first I/O port of the controller to charge the energy storage module, which can realize the effectiveness of weak current signals Collect and collect weak current signals directly through the I/O port, which has low power consumption and can effectively reduce power consumption; output pulse signals to at least one LED light through at least one second I/O port of the controller to adjust the energy storage module The size and frequency of the drive current signal output to at least one LED lamp, and drive at least one LED lamp to blink, to achieve the visual persistence effect of the candle lamp, and to achieve a more realistic flame beating effect. There is no need to set up a swing device, the structure is simple, and the function Low consumption.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the present application. For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a circuit for realizing a visual persistence effect of a candle lamp provided by an embodiment of the present application;

Fig. 2 is another schematic diagram of the structure of the circuit for realizing the visual persistence effect of the candle lamp provided by the embodiment of the present application;

FIG. 3 is a schematic diagram of another structure of the circuit for realizing the visual persistence effect of the candle lamp provided by the embodiment of the present application;

4 is a schematic diagram of a structure of a candle lamp provided by an embodiment of the present application;

Fig. 5 is a schematic diagram of another structure of a candle lamp provided by an embodiment of the present application.

Embodiments of the present invention

In order to enable those skilled in the art to better understand the solution of the application, the technical solutions in the embodiments of the application will be clearly described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are of the application. Part of the embodiment, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

The term "comprising" in the specification and claims of the present application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

As shown in FIG. 1, this embodiment provides a circuit 10 for realizing a visual persistence effect of a candle lamp, which includes a lighting board 1, a controller 2, an energy storage module 3, and at least one LED lamp 41, 42, ... 4N; Wherein, N≥2 and N is an integer.

In application, the number of LED lights included in the visual persistence effect realization circuit can be set according to actual needs.

In application, the visual persistence effect realization circuit can be applied to candle lights of any shape and structure. In this embodiment, only the content related to the visual persistence effect realization circuit is introduced, and the candle lamp is not particularly limited. The visual persistence effect realization circuit may include a circuit board, a daylighting board, a controller, an energy storage module, and at least one LED lamp are integrated on the circuit board or electrically connected to the circuit board. The circuit board can be a printed circuit board (Printed Circuit Board, PCB) or a flexible printed circuit board (Flexible Printed Circuit, FPC).

As shown in Figure 1, in this embodiment, the daylighting panel 1 is electrically connected to the first I/O port of the controller 2, the controller 2 is electrically connected to the energy storage module 3, and at least one second I/O port of the controller 2 The O ports are respectively electrically connected with at least one LED lamp 41-4N in a one-to-one correspondence, and the energy storage module 3 is electrically connected with at least one LED lamp 41-4N.

In this embodiment, the electrical connection refers to a connection realized by a cable for transmitting electrical signals such as current signals, voltage signals, pulse signals, and electrical carrier signals.

In the application, the daylighting panel can be a weak photovoltaic panel, which can convert the light signal into an electrical signal in a low light environment. The light intensity range of the light signal in a low light environment can be set to [5lux, 50lux]. Weak photovoltaic panels can be silicon solar cells (for example, amorphous silicon solar cells, monocrystalline silicon solar cells, polycrystalline silicon solar cells, etc.), compound cells (for example, gallium arsenide solar cells, cadmium telluride solar cells, etc.), thin film solar cells Batteries (for example, copper-indium-selenium thin-film batteries, copper-zinc-tin-sulfur thin-film solar cells, etc.), fuel-sensitized solar cells, organic solar cells, perovskite solar cells, graphene solar cells, quantum dot solar cells, etc.

In applications, the light signals in the environment include natural light signals and unnatural light signals. Natural light signals include direct sunlight and sunlight reflected, transmitted or refracted by objects. Unnatural light signals can be electric lights, televisions, displays, igniters, etc. The light signal emitted by the luminous unnatural object can also be the fire light emitted by the combustible object.

In application, the weak electrical signal includes at least one of a millivolt level voltage signal, a nanoampere current signal, a microampere current signal, and a weak charge signal.

In applications, the controller can be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processors). Signal Processor, DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, a micro-control unit (Microcontroller Unit, MCU), single-chip microcomputer (Single Chip Microcomputer) or the processor can also be any conventional processor. The first I/O port and the second I/O port may be GPIO (General-purpose input/output) ports.

In an embodiment, the energy storage module includes at least one of a capacitor, a rechargeable battery, a memory metal, a fuel cell, a primary battery, a secondary battery, and a flash battery.

In applications, energy storage modules can include capacitors (for example, bile capacitors, farad capacitors, ceramic capacitors, etc.), rechargeable batteries (for example, nickel-metal hydride batteries, lithium batteries, etc.), memory metals, fuel cells, primary batteries, and secondary batteries. At least one of secondary battery, flash storage battery, etc. can be selected according to the required storage capacity. When the energy storage module includes two or more batteries, the priority of charging the battery can be set according to the voltage rise rate or the generated power, for example, the voltage rise rate is greater than the preset speed or the generated power is greater than the preset preset power When setting the priority of a battery with a large storage capacity over a battery with a small storage capacity, the battery with a large storage capacity is given priority; on the contrary, the priority of a battery with a small storage capacity is set higher than that of the storage capacity. A battery with a large capacity is to give priority to a battery with a small capacity. The preset speed and preset power can be set according to actual needs, and the preset power is greater than the preset power threshold.

In this embodiment, the daylighting panel 1 is used to collect light signals in the environment and convert them into weak electrical signals;

Controller 2 is used for:

Collect weak current signals through the first I/O port to charge the energy storage module 3;

Output a pulse signal to at least one LED lamp 41~4N through at least one second I/O port to adjust the size and frequency of the drive current signal output by the energy storage module 3 to the at least one LED lamp 41~4N to drive at least one LED lamp Flashing 41~4N, realize the visual persistence effect of candle light.

In application, the controller separately outputs a pulse signal to each LED lamp. The size and frequency of the drive current signal output by the energy storage module to each LED lamp can be adjusted by changing the duty cycle of the pulse signal. When the pulse signal rises Edge trigger LED lights to light up, trigger LED lights to go out on the falling edge of the pulse signal, LED lights alternately turn on and off at a certain frequency to achieve the flicker effect, by making two or more LED lights flicker at different frequencies. The time point is different or the flicker frequency and the flicker time point are different. Based on the principle of persistence of vision, when the flicker frequency of the LED lamp is faster, the human eye can observe the flame beating effect similar to the candle.

In one embodiment, the visual persistence effect realization circuit includes at least two LED lights, and the duty cycle of the pulse signal output by the controller to the at least one LED light is the same and the starting time points of the rising edges are different ；

Alternatively, the duty cycle of the pulse signal output by the controller to the at least one LED lamp is different.

In the application, the value of the flicker frequency of the LED lamp is equal to the reciprocal of the duty cycle of the pulse signal. The smaller the duty cycle, the higher the flicker frequency of the LED lamp, and the lower the power consumption of the LED lamp. The duty cycle is directly proportional to the voltage and current. A decrease in the duty cycle will reduce the average current value of the drive current signal, thereby reducing the brightness and power consumption of the LED lamp. For example, if the duty cycle is 1/24, the frequency is 24 Hz, and the LED light flashes 24 times per second; if the duty cycle is 1/48, the frequency is 48 Hz, and the LED light flashes 48 times per second. The duty cycle of the pulse signal can be adjusted to 1, so that the LED light does not flicker, that is, the LED light is always on.

As shown in FIG. 2, in an embodiment of the present application, the visual persistence effect realization circuit 10 further includes a switch 5 electrically connected to the controller 2;

The switch 5 is used for the user to send an LED control signal to the controller 2;

The controller 2 is also used to control the working state of each LED lamp according to the LED control signal.

In the application, the switch can be a sound control switch, a touch switch, a light sensor switch, a sound and light control switch, a toggle switch or a push switch, etc. The user can control the lighting, extinguishing, brightness, and flashing frequency of each LED light through the switch. Waiting for the working status. The LED control signal is an electrical signal, and the switch converts the user's operation into an electrical signal and then sends it to the core of the controller.

As shown in FIG. 3, in an embodiment of the present application, the controller 2 includes a core 20 and an electric aggregation element 21 electrically connected to the core 20, an analog-to-digital converter 22, a voltage comparator 23, and a PWM chip 24. The element 21 is also electrically connected to the daylighting board 1, the analog-to-digital converter 22 and the PWM chip 21, the analog-to-digital converter 22 is also electrically connected to the voltage comparator 23, and the PWM chip 24 is also electrically connected to the energy storage module 3;

The electric gathering element 21 is used to collect the weak electric signal output by the daylighting board 1 through the first I/O port, and gather the weak electric signal;

The analog-to-digital converter 22 is used to sample the voltage of the collected weak electric signal;

The voltage comparator 23 is used to compare the voltage of the collected weak electric signal with the preset voltage threshold;

The core 20 is used to wake up the PWM chip 24 when the voltage of the collected weak current signal is greater than the preset voltage threshold;

The PWM chip 24 is used to convert the collected weak current signal into a current signal with a preset current value to charge the energy storage module 3.

In application, the controller is integrated with electric gathering elements for gathering weak electric signals. The electric gathering elements include MOS tubes, charge storage diodes, capacitors, and charge-coupled devices (CCD).

In application, the voltage of the collected weak current signal can be sampled by the analog-to-digital converter inside the controller, and then the voltage of the collected weak current signal can be compared with the preset voltage threshold by the voltage comparator inside the controller to detect Whether the voltage of the collected weak current signal is greater than the preset voltage threshold. The preset voltage threshold can be set as a voltage value capable of providing a stable charging voltage and current for the energy storage module according to actual needs.

In application, charging the energy storage module by outputting a current signal with a preset current value can improve charging stability and efficiency, ensure charging safety, and increase the life of the energy storage module.

In the application, according to the voltage of the gathered weak current signal, the PWM is awakened by a timer interrupt (Pulse The Width Modulation (Pulse Width Modulation) chip charges the energy storage module, and the PWM chip converts the voltage waveform and current waveform of the gathered weak current signal into a waveform suitable for charging the energy storage module to charge the energy storage module.

As shown in FIG. 3, in an embodiment of the present application, the controller 2 is also electrically connected to the register 25 and the timer 26 of the core 20;

Kernel 20 is used for:

According to the power-on reset register 25 and timer 26 of the weak current signal, initialize the system clock and user data to wake up the controller; wherein, the system clock is used to start timing after initialization, and the user data includes preset voltage thresholds and preset current values;

After the controller 2 is awakened, the controller 2 is triggered to enter the sleep state.

In the application, after the first I/O port of the controller collects the weak current signal, the weak current signal triggers the controller to wake up for a short time, resets the controller's registers and timers and initializes the system clock and user data to make the system clock Start timing and load user data so that the subsequent steps can be performed normally. After a short time waking up the controller, the controller enters the dormant state again to reduce power consumption and power consumption, so as to maximize the accumulation of more weak current signals as energy storage modules Recharge.

As shown in FIG. 3, in an embodiment of the present application, the controller 2 further includes an SPI bus 27 electrically connected to the core 20;

The kernel 20 is specifically used for:

Power-on reset the register 25 and timer 26 of the controller according to the weak current signal;

Define the stack domain;

Initialize the interrupt vector table;

Initialize the system clock;

Call entry function;

The I/O port, SPI bus 27, analog-to-digital converter 22, voltage comparator 23 and user data of the controller 2 are initialized; wherein, the user data also includes low-voltage detection data.

In the application, the above reset and initialization operations performed by the kernel are the startup programs of the software program system solidified in the internal storage space of the controller. The software program system can be written in assembly language, and the entry function includes the main function; the main function is called , It starts to execute the system program to initialize the various hardware and software data inside the controller. The low voltage detection chip inside the controller provides the low voltage detection interrupt function, which can detect the voltage value and the voltage value of the renewable energy power generation module or the energy storage module. Electricity, so as to obtain low-voltage detection data.

As shown in FIG. 3, in an embodiment of the present application, the controller 2 further includes a low-voltage detection chip 28 electrically connected to the core 20 and the energy storage module 3;

The low voltage detection chip 28 is used for:

Detect the voltage and power of the energy storage module 3 to obtain low-voltage detection data;

When the voltage or power of the energy storage module 3 reaches a preset percentage of the capacity of the energy storage module, output a low voltage signal to the core 20;

The core 20 is also used to wake up the controller 2 when receiving a low voltage signal, so that the controller 2 enters a working state.

In applications, the low-voltage detection chip is used to detect the voltage and power of the energy storage module. When the voltage or power of the energy storage module reaches a certain level (for example, the voltage is greater than or equal to 80% of the rated voltage of the energy storage module, and the power is greater than or equal to 80% of the rated voltage of the energy storage module). When the capacity of the energy storage module is 80%), the low-voltage detection chip outputs a low-voltage signal to wake up the controller and make the controller enter the working state to supply power to the LED lights.

The embodiment corresponding to FIG. 3 directly collects the weak current signal output by the daylighting panel through the I/O port of the controller, and collects the weak current signal, and when the voltage of the collected weak current signal is greater than the preset voltage threshold, the preset current is output The value of the current signal charges the energy storage module, which can effectively collect weak current signals, has low power consumption, and can effectively reduce power consumption, thereby effectively reducing the power consumption of candle lights.

In this embodiment, by providing a lighting board, a controller, an energy storage module, and at least one LED lamp, the visual persistence effect realization circuit of a candle lamp is provided. The light signal in the environment is collected by the lighting board and converted into a weak electric signal, which can be used The light signal in the environment can be supplied with power, which effectively saves energy, is low-carbon and environmentally friendly, and does not require additional batteries; collect weak current signals through the first I/O port of the controller to charge the energy storage module, which can achieve effective collection of weak current signals , And directly collect weak current signals through the I/O port, with low power consumption, which can effectively reduce power loss; output pulse signals to at least one LED light through at least one second I/O port of the controller to adjust the output of the energy storage module Up to the size and frequency of the driving current signal of at least one LED light, drive at least one LED light to blink, realize the visual persistence effect of the candle light, and achieve a more realistic flame beating effect, no need to set up a swing device, simple structure, and power consumption low.

As shown in FIG. 4 or FIG. 5, an embodiment of the present application provides a candle lamp 100, which includes the visual persistence effect realization circuit 10 in the foregoing embodiment.

As shown in FIG. 4, in one embodiment, the daylighting panel 1 is a flexible daylighting panel, and the flexible daylighting panel constitutes the hollow housing 101 of the candle lamp 100, and the controller 2, the energy storage module 3 and at least one LED lamp are arranged in the housing. In the body, the housing 101 includes a light-transmitting area 1010.

In application, the shape and structure of the candle light can be set according to actual needs, for example, candle shape, candlelight shape, torch shape, flame shape, etc. The hollow shell of the candle lamp is provided with a bracket or a partition, which is used to fix the visual persistence effect and realize the various components in the circuit.

As shown in FIG. 4 exemplarily, the housing 101 of the candle lamp 100 is in the shape of a candle, the housing 101 includes a hollow main housing 1011 in the shape of a candle body and a flame piece 1012 in the shape of a candle, a controller 2 and an energy storage module 3 Set in the main housing 1011, the daylighting panel 1 constitutes the main housing 1011, two LED lights 41 and 42 are arranged at the junction of the main housing 1011 and the flame sheet 1012, and the junction is the light-transmitting area 1010.

As shown in FIG. 5, in one embodiment, the candle lamp 100 includes a hollow housing 101, the housing 101 includes a light-transmitting area 1010, the daylighting board 1, the controller 2, the energy storage module 3, and at least one LED lamp are arranged in In the housing 101, the daylighting panel 1 and at least one LED lamp are located in the light-transmitting area 1010.

In application, when the daylighting board is set inside the shell, the shell can transmit light completely or partially. In order to hide the visual persistence effect and realize the circuit and improve the aesthetics, only part of the shell can be set to transmit light. area. The light-transmitting area can be made of transparent or translucent materials, for example, glass, acrylic, plastic, and the like.

In one embodiment, the casing includes a hollow main casing in the shape of a candle body and a flame piece in the shape of a candlelight, the controller and the energy storage module are arranged in the main casing, and the daylighting board Is arranged in the main housing, the at least one LED lamp is arranged at the junction of the main housing and the flame piece, and the junction and all or part of the main housing are the transparent Light area.

In application, the main casing can be made of light-transmitting material in whole or in part, so that the light signal in the environment can be collected by the lighting panel through the main casing.

As shown in FIG. 5 exemplarily, the housing 101 of the candle lamp 100 is candle-shaped, the housing 101 includes a candle-shaped hollow main housing 1011 and a candle-shaped flame piece 1012, a controller 2 and an energy storage module 3. The lighting panel 1 and the two LED lights 41 and 42 are arranged at the junction of the main housing 1011 and the flame sheet 1012. The upper half of the main housing 1011 and the junction are the light-transmitting area 1010.

In application, a through hole is opened at the joint, and the light emitted by the LED lamp is transmitted to the flame through the through hole.

In application, by setting the flame piece as a free-form surface condenser, a curved light-concentrating effect can be achieved, so that the light converging on the flame piece is closer to the luminous effect of a real candle.

In application, the candle light can also include a condensing lens and a light guide rod arranged between the LED lamp and the junction, which is used to converge and transmit the light emitted by the LED lamp to the flame slice to enhance the convergence of the light on the flame slice effect.

It should be understood that FIGS. 4 and 5 only exemplarily show the relative positional relationship between the components in the candle lamp, and are not used to limit the actual shape and structure of the candle lamp.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that it can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in Within the scope of protection of this application.

Claims

A circuit for realizing a visual persistence effect of a candle lamp, which is characterized in that it comprises a lighting board, a controller, an energy storage module and at least one LED lamp;

The daylighting board is electrically connected to the first I/O port of the controller, the controller is electrically connected to the energy storage module, and at least one second I/O port of the controller is respectively connected to the at least one One LED lamp is electrically connected in a one-to-one correspondence, and the energy storage module is electrically connected with the at least one LED lamp;

The daylighting board is used to collect light signals in the environment and convert them into weak electric signals;

The controller is used for:

Collecting the weak current signal through the first I/O port to charge the energy storage module;

A pulse signal is output to the at least one LED lamp through the at least one second I/O port, so as to adjust the magnitude and frequency of the driving current signal output by the energy storage module to the at least one LED lamp, and drive the at least one LED lamp. One LED light flashes to realize the visual persistence effect of the candle light.
The visual persistence effect realization circuit of the candle lamp according to claim 1, wherein the persistence visual effect realization circuit comprises at least two LED lamps, and the controller outputs to the at least two LED lamps. The duty cycle of the pulse signal is the same and the starting time point of the rising edge is different;

Alternatively, the duty ratios of the pulse signals output by the controller to the at least two LED lamps are different.
The circuit for realizing the persistence effect of the candle lamp according to claim 2, wherein the duty cycle of the pulse signal is greater than 0 and less than or equal to 1/24.
3. The visual persistence effect realization circuit of the candle lamp according to claim 3, characterized in that, the visual persistence effect realization circuit comprises two of the LED lights;

The duty cycle of the pulse signal output by the controller to one of the LED lights is 1/24;

The duty ratio of the pulse signal output by the controller to the other LED lamp is 1/48.
The circuit for realizing the persistence effect of the candle lamp according to any one of claims 1 to 4, wherein the controller includes a core and an electric gathering element electrically connected to the core, an analog-to-digital converter, and a voltage A comparator and a PWM chip, the electric gathering element is also electrically connected to the daylighting plate, the analog-to-digital converter and the PWM chip, the analog-to-digital converter is also electrically connected to the voltage comparator, the The PWM chip is also electrically connected to the energy storage module;

The electric gathering element is used to collect the weak electric signal output by the daylighting board through the first I/O port, and gather the weak electric signal;

The analog-to-digital converter is used to sample the voltage of the collected weak electric signal;

The voltage comparator is used to compare the voltage of the collected weak electric signal with a preset voltage threshold;

The core is configured to wake up the PWM chip when the voltage of the gathered weak current signal is greater than a preset voltage threshold;

The PWM chip is used to convert the collected weak current signal into a current signal of a preset current value to charge the energy storage module.
The circuit for implementing the visual persistence effect of the candle lamp according to claim 5, wherein the electrical gathering element includes at least one of a MOS tube, a charge storage diode, a capacitor, and an electrical coupling element.
The circuit for implementing the persistence effect of the candle light according to claim 5, wherein the controller further comprises a register and a timer electrically connected to the core;

The kernel is used for:

Power-on resets the register and the timer according to the weak current signal, and initializes the system clock and user data to wake up the controller; wherein the system clock is used to start timing after initialization, and the user data includes The preset voltage threshold and the preset current value;

After waking up the controller, triggering the controller to enter the sleep state.
The circuit for realizing the visual persistence effect of the candle lamp according to claim 5, wherein the controller further comprises a low-voltage detection chip electrically connected with the core and the energy storage module;

The low voltage detection chip is used for:

Detecting the voltage and power of the energy storage module to obtain low-voltage detection data;

When the voltage or power of the energy storage module reaches a preset percentage of the capacity of the energy storage module, output a low voltage signal to the core;

The core is also used to wake up the controller when receiving the low voltage signal, so that the controller enters a working state.
8. The visual persistence effect realization circuit of the candle lamp according to claim 8, wherein the visual persistence effect realization circuit further comprises a switch electrically connected to the controller;

The switch is used for a user to send an LED control signal to the core;

The controller is also used to control the working state of each of the LED lights according to the LED control signal.
The circuit for realizing the visual persistence effect of the candle lamp according to any one of claims 1 to 4, wherein the daylighting panel includes a weak photovoltaic panel, and the energy storage module includes a capacitor, a rechargeable battery, a memory metal, At least one of a fuel cell, a primary battery, a secondary battery, and a flash storage battery.
A candle lamp, characterized by comprising the visual persistence effect realization circuit according to any one of claims 1-10.
The candle lamp of claim 11, wherein the daylighting board is a flexible daylighting board, the flexible daylighting board constitutes the hollow shell of the candle lamp, the controller, the energy storage module, and The at least one LED lamp is arranged in the housing, and the housing includes a light-transmitting area.
The candle lamp of claim 12, wherein the housing is in the shape of a candle, and the housing includes a hollow main housing in the shape of a candle body and a flame piece in the shape of a candle, the controller and the The energy storage module is arranged in the main housing, the daylighting board constitutes the main housing, the at least one LED lamp is arranged at the junction of the main housing and the flame piece, and the junction is Transparent area.
The candle lamp of claim 11, wherein the candle lamp comprises a hollow shell, the shell includes a light-transmitting area, the daylighting board, the controller, the energy storage module, and the The at least one LED lamp is arranged in the housing, and the daylighting plate and the at least one LED lamp are located in the light-transmitting area.
The candle lamp of claim 14, wherein the housing is in the shape of a candle, and the housing includes a hollow main housing in the shape of a candle body and a flame piece in the shape of a candle, the controller and the The energy storage module is arranged in the main housing, the daylighting board and the at least one LED lamp are arranged at the junction of the main housing and the flame piece, and all of the junction and the main housing The area or part of the area is the light-transmitting area.
The candle lamp according to claim 13 or 15, wherein the flame piece is a free-form surface condenser, which is used to converge the light emitted by the at least one LED lamp on the surface of the flame piece.