CN103574363A - Novel LED candle lamp - Google Patents

Abstract

The invention discloses a novel LED candle lamp, which comprises a lamp base, a transparent lamp tube, a lamp cover, a flame-shaped and hollow wick and an LED light-emitting circuit located in the lamp tube, and the bottom of the lamp tube is installed on the lamp base , the lamp cover is installed on the upper port of the lamp tube, the wick is arranged on the lamp cover, a first through hole is opened on the lamp cover below the wick, and a second through hole is opened on the lamp cover outside the wick, and the LED light-emitting circuit includes a control module, a lighting module, a lighting module and an LED light source, the lighting module and the lighting module are respectively connected to the control module, the control module is connected to the LED light source, the lighting module includes a thermistor, and the sensing end of the thermistor passes through the second through hole The advantage is that the lighting and extinguishing methods are the same as the traditional LED candle lights, which can be used not only in places with modern atmosphere, but also in places with warm and nostalgic atmosphere, with a wide range of applications.

Description

A New Type of LED Candle Lamp

technical field

The invention relates to a candle lamp, in particular to a novel LED candle lamp.

Background technique

The traditional candle lamp is to ignite the fuel with an ignition tool such as a match or a lighter. During the fuel combustion process, a flame is generated as a light source for lighting. When the candle lamp is to be extinguished, it is only necessary to blow out the flame of the fuel. Traditional candle lamps have the following problems: 1. The light source of traditional candle lamps is an open flame, the use environment is limited, and there are potential safety hazards; 2. The fuel is organic materials, and traditional candle lamps need to consume non-renewable resources during the burning process. And will release carbon dioxide, there is a certain environmental pollution.

With the development of science and technology, advanced technology has gradually replaced traditional technology. In the field of lighting, traditional candle lights have been gradually replaced by LED candle lights. The shape of the LED candle lamp is similar to that of a traditional candle lamp, including a driving power supply and an LED light source composed of multiple light-emitting diodes. The driving power supply drives the LED light source to emit light for lighting. Existing LED candle lamps overcome the problems of traditional candle lamps and are widely used in the lighting field. However, the existing LED candle lights are turned on or off by electronic devices (switches), and their lighting and extinguishing methods are completely different from traditional LED candle lights. They cannot replace traditional LED candle lights in some warm and nostalgic places. , the scope of use is limited.

Contents of the invention

The technical problem to be solved by the present invention is to provide a new type of LED candle lamp with a wide range of use, which can be used in places with modern atmospheres as well as in places with warm and nostalgic atmospheres in the same lighting and extinguishing methods as traditional LED candle lights. LED candle lights.

The technical solution adopted by the present invention to solve the above technical problems is: a new type of LED candle lamp, including a lamp holder, a transparent lamp tube, a lamp cover, a flame-shaped and hollow wick and an LED located in the lamp tube. Light-emitting circuit, the bottom of the lamp tube is installed on the lamp holder, the lamp cover is installed on the upper port of the lamp tube, the wick is set on the lamp cover, the The lamp cover below the wick is provided with a first through hole, the lamp cover outside the wick is provided with a second through hole, and the LED lighting circuit includes a control module, a lighting module, a light-off module and an LED light source. The lighting module and the lighting module are respectively connected to the control module, the control module is connected to the LED light source, the lighting module includes a thermistor, and the thermistor The sensing end protrudes from the second through hole. When the sensing end of the thermistor is in contact with the flame for at least 3 seconds, the lighting module generates a lighting signal and sends it to the control module. The control module described above controls the LED light source to emit light, and the light-off module includes a microphone, and the microphone is located directly below the second through hole. When blowing air into the second through hole, The microphone vibrates, the light-off module generates a light-off signal and sends it to the control module, and the control module controls the LED light source to turn off.

The lighting module also includes a first resistor and an NPN transistor, one end of the thermistor is used to connect to the driving voltage, the other end of the thermistor, one end of the first resistor and the The bases of the NPN triode mentioned above are connected, the other end of the first resistor and the emitter of the NPN triode are grounded, and the collector of the NPN triode is the lighting signal output end, and the output The lighting signal.

The control module includes a first chip model SN8P2511-sop8, the LED light source includes a first light emitting diode, a second light emitting diode and a third light emitting diode, the first pin of the first chip, the The anode of the first light-emitting diode, the anode of the second light-emitting diode and the anode of the third light-emitting diode are all connected to the driving voltage, and the second pin of the first chip is connected to the light-off signal, so The third pin of the first chip is connected to the lighting signal, the fifth pin of the first chip is connected to the cathode of the first light-emitting diode, and the sixth pin of the first chip is connected to the negative pole of the first light-emitting diode. The negative pole of the second light emitting diode is connected, the seventh pin of the first chip is connected with the negative pole of the third light emitting diode, and the eighth pin of the first chip is grounded.

The light-off module also includes an amplifier model LM358, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor and a first capacitor, one end of the second resistor, One end of the first capacitor is connected to the input end of the microphone, the other end of the first capacitor and one end of the third resistor are connected to the fifth pin of the amplifier, and the The other end of the second resistor, one end of the sixth resistor is connected to the 8th pin of the amplifier and its connection end is used to access the driving voltage, the other end of the sixth resistor, the first One end of the seven resistors is connected to the third pin of the amplifier, the other end of the seventh resistor, the fourth pin of the amplifier, the other end of the third resistor, the fourth resistor One end of the microphone and the output end of the microphone are both grounded, the other end of the fourth resistor, one end of the fifth resistor are connected to the 6th pin of the amplifier, and the other end of the fifth resistor One end, the 7th pin of the amplifier is connected with the 2nd pin of the amplifier, and the 1st pin of the amplifier outputs the light-off signal.

The LED light-emitting circuit also includes a charging module, and the charging module includes a second chip of model TP4056, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a fourth light-emitting diode, and a fifth light-emitting diode. Diode, second capacitor, third capacitor, fourth capacitor, USB port and rechargeable lithium battery, the light emitting colors of the fourth light emitting diode and the fifth light emitting diode are different, and the The 4th pin of the second chip, the 8th pin of the second chip, one end of the eighth resistor, the anode of the fourth light-emitting diode and the anode of the fifth light-emitting diode are connected, so The other end of the eighth resistor, one end of the third capacitor are connected to the fifth pin of the USB port, the other end of the third capacitor is connected to the first pin of the USB port, the The first pin of the second chip, the third pin of the second chip, one end of the eleventh resistor, one end of the second capacitor, one end of the fourth capacitor and the The negative poles of the lithium batteries are all grounded, the negative poles of the fourth light-emitting diode are connected to one end of the ninth resistor, and the other end of the ninth resistor is connected to the seventh pin of the second chip , the cathode of the fifth light-emitting diode is connected to one end of the tenth resistor, the other end of the tenth resistor is connected to the sixth pin of the second chip, and the second chip’s The second pin is connected to the other end of the eleventh resistor, the fifth pin of the second chip, the other end of the second capacitor, the other end of the fourth capacitor and the The positive pole of the lithium battery is connected and its connection terminal outputs a driving voltage.

The lamp holder, the lamp tube, the lamp cover and the wick are respectively formed by injection molding, and the periphery of the lamp cover is bent downwards and extended to surround the upper part of the lamp tube. On the outside, the edge of the periphery of the lamp cover is irregularly wavy.

Compared with the prior art, the present invention has the advantage that the candle lamp is composed of a lamp holder, a transparent lamp tube, a lamp cover and a flame-shaped and hollow wick, and then LED lighting is realized through an LED light-emitting circuit, and the LED light-emitting circuit It includes a control module, a lighting module, a light-off module and an LED light source. The lighting module and the light-off module are connected to the control module respectively, and the control module is connected to the LED light source. The lighting module includes a thermistor, and the sensing end of the thermistor is connected to the second The through hole protrudes. When the sensing end of the thermistor is in contact with the flame for at least 3 seconds, the lighting module generates a lighting signal and sends it to the control module. The control module controls the LED light source to emit light. The light-off module includes a microphone, and the microphone is located in the second through hole. Directly below, when blowing air into the second through hole, the microphone vibrates, the light-off module generates a light-off signal and sends it to the control module, and the control module controls the LED light source to turn off, so the present invention has the lighting advantages of modern LED lamps Basically, it has the same lighting and extinguishing methods as traditional LED candle lamps, which can be used not only in places with modern atmosphere, but also in places with warm and nostalgic atmosphere, with a wide range of applications;

When the LED light-emitting circuit also includes a charging module, the lithium battery in the power-on module can supply power to the entire LED circuit without connecting to an external power supply. The LED candle lamp of the present invention can move freely according to needs without being limited by power wiring , easy to use;

When the lamp holder, lamp tube, lamp cover and wick are respectively formed by injection molding, the periphery of the lamp cover is bent downward and extends to wrap around the outside of the upper part of the lamp tube, and the edge of the periphery of the lamp cover is irregularly wavy, a On the one hand, the cost is low, on the other hand, it can visually simulate the traditional burning state, which is more vivid and further enhances its nostalgic artistry.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is an explosion diagram of the present invention;

Fig. 3 is the circuit diagram of control module, lighting module and LED light source of the present invention;

Fig. 4 is the circuit diagram of the light-off module of the present invention;

FIG. 5 is a circuit diagram of the charging module of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment 1: As shown in the figure, a new LED candle lamp includes a lamp base 1, a transparent lamp tube 2, a lamp cover 3, a flame-shaped and hollow wick 4 and an LED light-emitting circuit inside the lamp tube 2 , the bottom of the lamp tube 2 is installed on the lamp holder 1, the lamp cover 3 is installed on the upper port of the lamp tube 2, the wick 4 is arranged on the lamp cover, and the lamp cover 3 below the wick 4 is provided with a first through hole 21, The lamp cover 3 on the outside of the wick 4 is provided with a second through hole 22. The LED lighting circuit includes a control module 5, a lighting module 6, a light-off module 7 and an LED light source 8. The lighting module 6 and the light-off module 7 are respectively connected to the control module 5. The control module 5 is connected to the LED light source 8. The lighting module 6 includes a thermistor PT. The sensing end 61 of the thermistor PT protrudes from the second through hole 21. When the sensing end 61 of the thermistor PT is in contact with the flame for at least 3 Seconds, the lighting module 6 generates a lighting signal and sends it to the control module 5, the control module 5 controls the LED light source 8 to emit light, the light-off module 7 includes a microphone MK1, and the microphone MK1 is located directly below the second through hole 22. When blowing air in 22, the microphone MK1 vibrates, and the light-off module 7 generates a light-off signal and sends it to the control module 5, and the control module 5 controls the LED light source 8 to turn off.

As shown in Fig. 3, in this embodiment, the lighting module 6 also includes a first resistor R1 and an NPN transistor Q1, one end of the thermistor PT is used to connect to the driving voltage VCC, the other end of the thermistor PT, the first One end of the resistor R1 is connected to the base of the NPN transistor Q1, the other end of the first resistor R1 and the emitter of the NPN transistor Q1 are grounded, and the collector of the NPN transistor Q1 is the output terminal of the lighting signal, which outputs the lighting signal ; The control module 5 includes the first chip U1 whose model is SN8P2511-sop8, the LED light source 8 includes the first light-emitting diode D1, the second light-emitting diode D2 and the third light-emitting diode D3, the first pin of the first chip, the first light-emitting diode The anode of D1, the anodes of the second light-emitting diode D2 and the third light-emitting diode D3 are all connected to the driving voltage VCC, the second pin of the first chip U1 is connected to the light-off signal CL, and the third pin of the first chip U1 is connected to the light-on signal , the fifth pin of the first chip U1 is connected to the cathode of the first light-emitting diode D1, the sixth pin of the first chip U1 is connected to the negative pole of the second light-emitting diode D2, the seventh pin of the first chip U1 is connected to the third light-emitting diode The negative pole of D3 is connected, and the 8th pin of the first chip is grounded.

As shown in Figure 4, in this embodiment, the light-off module 7 also includes an amplifier U2 whose model is LM358, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor Resistor R7 and the first capacitor C1, one end of the second resistor R2, one end of the first capacitor C1 are connected to the input end of the microphone MK1, the other end of the first capacitor C1, one end of the third resistor R3 and the fifth pin of the amplifier U2 Connection, the other end of the second resistor R2, one end of the sixth resistor R6 are connected to the 8th pin of the amplifier U2 and its connection end is used to access the driving voltage VCC, the other end of the sixth resistor R6, one end of the seventh resistor R7 Connect with the third pin of the amplifier U2, the other end of the seventh resistor R7, the fourth pin of the amplifier U2, the other end of the third resistor R3, one end of the fourth resistor R4 and the output end of the microphone MK1 are all grounded, the fourth resistor The other end of R4, one end of the fifth resistor R5 are connected to the sixth pin of the amplifier U2, the other end of the fifth resistor R5, the seventh pin of the amplifier U2 is connected to the second pin of the amplifier U2, and the first pin of the amplifier U2 outputs Lights out signal CL.

Connect the LED candle lamp of this embodiment to the power supply, and the power supply inputs the driving voltage VCC. The working principle of the LED candle lamp of this embodiment is as follows:

(1) Lighting stage: one end of the thermistor PT is connected to the driving voltage VCC, thus, one end of the thermistor PT is a high voltage end, the other end of the thermistor PT is a low voltage end, the other end of the thermistor PT, One end of the first resistor R1 is connected to the base of the NPN transistor Q1, the first resistor R1 acts as a voltage divider resistor, one end of the first resistor R1 is the high voltage end, and the other end of the first resistor R1 is grounded for the low voltage Therefore, the low-voltage end of the thermistor PT and the high-voltage end of the first resistor R1 are connected to the base of the NPN transistor Q1, and the collector of the NPN transistor Q1 is the output end of the lighting signal, which outputs the lighting signal. The first chip U1 The 3rd pin of the pin is connected to the light signal, and the emitter of the NPN transistor Q1 is grounded; after being ignited by a lighter or a match, the flame touches the sensing end of the thermistor PT for about 3 seconds. At this time, the flame gives the thermistor PT a Regional temperature, the temperature can generally reach 280°C ~ 500°C, the resistance of the thermistor PT drops sharply, the existence of the driving voltage VCC makes the voltage across the thermistor PT decrease, and the first resistor R1 points to the thermistor PT The voltage value rises, the voltage is positively biased between the base and the emitter of the NPN transistor Q1, and a conduction state is formed between the collector and the emitter of the NPN transistor Q1. At this time, the collector of the NPN transistor Q1 Generate a low-level trigger signal, the low-level trigger signal is the lighting signal, the third pin of the first chip U1 is connected to the lighting signal and starts to work, and controls the LED light source 8 to emit light, thereby completing the lighting process;

(2) Light-off stage: When artificially blowing air (the process of blowing out the light), the microphone MK1 vibrates to form a current impedance. Under the action of the driving voltage +VCC and the second resistor R2, a small AC electromagnetic wave is formed, and then passes through the first Capacitor C1 forms a weak potential difference on the third resistor R8, and the potential difference is input into the amplifier U2 (LM358), and the amplifier U2 amplifies the micro potential difference, and compares the amplified potential difference with the marked voltage formed by the sixth resistor R6/seventh resistor R7 to obtain An identification low level is output from the first pin of the amplifier U2. The identification low level is the light-off signal CL (the trigger of LM358 is low level). After the first chip U1 is connected to the light-off signal CL, it controls the LED light source 8 to turn off. Eventually lights out.

Embodiment 2: This embodiment adds a charging module on the basis of Embodiment 1. As shown in Figure 5, the charging module includes a second chip U3 of model TP4056, an eighth resistor R8, a ninth resistor R9, Resistor R10, eleventh resistor R11, fourth light-emitting diode D4, fifth light-emitting diode D5, second capacitor C2, third capacitor C3, fourth capacitor C4, USB port USB and rechargeable lithium battery BT1, the second The four light-emitting diodes and the fifth light-emitting diode have different light-emitting colors. The light-emitting color of the fourth light-emitting diode is red, and the light-emitting color of the fifth light-emitting diode is green. The fourth pin of the second chip U3 and the second chip U3 The 8th pin of the eighth resistor R8, one end of the eighth resistor R8, the anode of the fourth light-emitting diode D4 and the anode of the fifth light-emitting diode D5 are connected, the other end of the eighth resistor R8, one end of the third capacitor C3 and the fifth of the USB port USB Pin connection, the other end of the third capacitor C3, the first pin of the USB port USB, the first pin of the second chip U3, the third pin of the second chip U3, one end of the eleventh resistor R11, the second capacitor C2 One end, one end of the fourth capacitor C2 and the negative pole of the lithium battery BT1 are all grounded, the negative pole of the fourth light-emitting diode D4 is connected to one end of the ninth resistor R9, and the other end of the ninth resistor R9 is connected to the seventh pin of the second chip U3 , the negative pole of the fifth light-emitting diode D5 is connected to one end of the tenth resistor R10, the other end of the tenth resistor R10 is connected to the sixth pin of the second chip U3, the second pin of the second chip U3 is connected to the eleventh resistor R11 The other end is connected, the fifth pin of the second chip U3, the other end of the second capacitor C2, the other end of the fourth capacitor C4 are connected to the positive electrode of the lithium battery BT1 and the connecting end outputs the driving voltage VCC.

In this embodiment, the lithium battery in the charging module provides the driving voltage required by the LED lighting circuit, and the LED lighting circuit does not need to be connected to an external power supply.

In this embodiment, the working principle of the charging module is as follows: an external adapter is connected to the charging module through the USB interface, and the eighth resistor R8 is a protection resistor to adjust the driving voltage of the third chip U3 (TP4056); The fifth light-emitting diode D2 is connected, the fourth light-emitting diode D4 is open, and it shows that charging is in progress. Resistor R10 is the protection resistor of the fourth light-emitting diode D4 and the fifth light-emitting diode D2; the eleventh resistor R11 is a current-limiting resistor to adjust the charging output current, the fourth capacitor C4 is a filter capacitor, and BT1 is a rechargeable battery. The middle lithium battery can be described as DC3.7V.

Embodiment 3: This embodiment is based on Embodiment 1 and Embodiment 2. Lamp holder 1, lamp tube 2, lamp cover 3 and wick 4 are respectively formed by injection molding, and the periphery of lamp cover 3 is bent and extended downwards. Surrounding the outside of the upper part of the lamp tube 2, the edge 31 of the periphery of the lamp cover 3 is irregularly wavy.

In the present invention, an infrared controller can also be added to control the first chip U1 to send a light-on signal or a light-off signal through the infrared controller, so as to realize the remote control operation of the LED candle lamp.

Claims (6)

1. a New LED candle lamp, it is characterized in that comprising lamp socket, transparent fluorescent tube, light cover, profile is the wick of flare shape and hollow and the LED illuminating circuit that is positioned at described fluorescent tube, the bottom of described fluorescent tube is arranged on described lamp socket, described light cover is arranged in the upper port of described fluorescent tube, described wick is arranged on described light cover, on the light cover of described wick below, offer the first through hole, on the light cover in described wick outside, offer the second through hole, described LED illuminating circuit comprises control module, point lamp module, light-off module and LED light source, described some lamp module is connected with described control module respectively with described light-off module, described control module is connected with described LED light source, described some lamp module comprises thermistor, the induction end of described thermistor is stretched out from the second described through hole, when the induction end of described thermistor contacts at least 3 seconds with flame, described some lamp module generates some modulating signal and sends to described control module, it is luminous that described control module is controlled described LED light source, described light-off module comprises microphone, under the second through hole described in described microphone is positioned at, while blowing in the second through hole described in present dynasty, described microphone generating vibrations, described light-off module generates light-off signal and sends to described control module, described control module is controlled described LED light source and is extinguished.

2. a kind of New LED candle lamp according to claim 1, it is characterized in that described some lamp module also comprises the first resistance and NPN type triode, one end of described thermistor is used for accessing driving voltage, one end of the other end of described thermistor, described the first resistance is connected with the base stage three of described NPN type triode, the equal ground connection of emitter stage of the other end of the first described resistance and described NPN type triode, the current collection of the described NPN type triode signal output part of very lighting a lamp, the some modulating signal that output is described.

3. a kind of New LED candle lamp according to claim 1, it is characterized in that described control module comprises that model is the first chip of SN8P2511-sop8, described LED light source comprises the first light emitting diode, the second light emitting diode and the 3rd light emitting diode, the 1st pin of the first described chip, the positive pole of the first described light emitting diode, the positive pole of the second described light emitting diode and the 3rd described light emitting diode all accesses driving voltage, the described light-off signal of the 2nd pin access of the first described chip, the described some modulating signal of the 3rd pin access of the first described chip, the 5th pin of the first described chip is connected with the negative pole of the first described light emitting diode, the 6th pin of the first described chip is connected with the negative pole of the second described light emitting diode, the 7th pin of the first described chip is connected with the negative pole of the 3rd described light emitting diode, the 8th pin ground connection of the first described chip.

4. a kind of New LED candle lamp according to claim 1, is characterized in that described light-off module also comprises that model is the amplifier of LM358, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the first electric capacity, one end of the second described resistance, one end of the first described electric capacity is connected with the input of described microphone, the other end of the first described electric capacity, the 5th pin of one end of the 3rd described resistance and described amplifier is connected, the other end of the second described resistance, the 8th pin of one end of the 6th described resistance and described amplifier is connected and its link is used for accessing driving voltage, the other end of the 6th described resistance, the 3rd pin of one end of the 7th described resistance and described amplifier is connected, the other end of the 7th described resistance, the 4th pin of described amplifier, the other end of the 3rd described resistance, the equal ground connection of output of one end of the 4th described resistance and described microphone, the other end of the 4th described resistance, the 6th pin of one end of the 5th described resistance and described amplifier is connected, the other end of the 5th described resistance, the 7th pin of described amplifier is connected with the 2nd pin of described amplifier, the described light-off signal of the 1st pin output of described amplifier.

5. a kind of New LED candle lamp according to claim 1, is characterized in that described LED illuminating circuit also comprises charging module, and described charging module comprises that model is the second chip of TP4056, the 8th resistance, the 9th resistance, the tenth resistance, the 11 resistance, the 4th light emitting diode, the 5th Light-Emitting Diode, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, USB port and rechargeable lithium battary, the 4th described light emitting diode is different with the glow color of the 5th described Light-Emitting Diode, the 4th pin of the second described chip, the 8th pin of the second described chip, one end of the 8th described resistance, the positive pole of the 4th described light emitting diode is connected with the positive pole of the 5th described light emitting diode, the other end of the 8th described resistance, the 5th pin of one end of the 3rd described electric capacity and described USB port is connected, the other end of the 3rd described electric capacity, the 1st pin of described USB port, the 1st pin of the second described chip, the 3rd pin of the second described chip, one end of the 11 described resistance, one end of the second described electric capacity, the equal ground connection of negative pole of one end of the 4th described electric capacity and described lithium battery, the negative pole of the 4th described light emitting diode is connected with one end of the 9th described resistance, the 7th pin of the other end of the 9th described resistance and the second described chip is connected, the negative pole of the 5th described light emitting diode is connected with one end of the tenth described resistance, the 6th pin of the other end of the tenth described resistance and the second described chip is connected, the 2nd pin of the second described chip is connected with the other end of the 11 described resistance, the 5th pin of the second described chip, the other end of the second described electric capacity, the positive pole of the other end of the 4th described electric capacity and described lithium battery is connected and its link outputting drive voltage.

6. a kind of New LED candle lamp according to claim 1, it is characterized in that described lamp socket, described fluorescent tube, described light cover and described wick form by injection moulding respectively, the periphery of described light cover bends the outside that is surrounded on the top of described fluorescent tube after extension downwards, and the edge of the periphery of described light cover is irregular wave shape wave.

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