LED outdoor wall washer capable of being preheated

Abstract

According to the LED outdoor wall washing lamp capable of being preheated, the temperature in the lamp can be collected through an AD collecting module and fed back to a main control chip in real time, when the temperature in the lamp is lower than a preset value, the main control chip sends a PWM signal to a heating module, and the heating module outputs actual heating power through the signal sent by the main control chip; and when the temperature detected by the AD acquisition module is greater than a preset value, the main control chip sends a signal to enable the heating module to stop outputting, so that electronic components in the lamp can be always kept in a working temperature range.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED technical field, concretely relates to a preheating's LED outdoor wall washing lamp. BACKGROUND

[0002] Now, outdoor lamps have been widely used in decorating building outer wall, stair profile, river embankment, open-air square, park, stage and other places needing large area floodlighting, therefore outdoor lamps often work in open-air environment, but in some extremely severe weather, such as extremely cold weather, lamps often fail because of too low temperature. SUMMARY

[0003] In view of the deficiency of prior art, the utility model provides a preheating's LED outdoor wall washing lamp, utilize heating module to make preheating treatment for electronic components in lamp, make electronic components in lamp can always keep in working temperature, ensure that lamp normally works in extremely cold weather.

[0004] The application provides a preheating's LED outdoor wall washing lamp, including: AD acquisition module is used for detecting temperature in lamp, main control module includes main control chip, the main control module is electrically connected with AD acquisition module through pin, the main control module is used for receiving the information sent by AD acquisition module, and whether heating instruction is sent based on the information received, DC-DC power supply module is used for connecting with external power supply and power supply to main control module, heating module, heating module is connected with main control module to receive the heating instruction, the heating module includes step-down module and heating main part, the input end of step-down module is electrically connected with DC-DC power supply module, and the output end of step-down module is electrically connected with heating main part, and heating main part is used to heat light source module, light source module includes one or more LED light sources.

[0005] In some embodiments, the main control chip is M058DM.

[0006] In some embodiments, the heating main part includes a polyimide heating sheet.

[0007] In some embodiments, the main control module and the heating module are connected by pins to transmit the heating instruction, and the heating module includes a step-down module, which is a TD1602 voltage stabilizing chip, and the TD1602 voltage stabilizing chip is used to stabilize external voltage and power supply for the heating module.

[0008] The heating module includes a heating main part, which is an NCE6003Y, and the NCE6003Y controls output voltage according to the heating instruction, thereby controlling the output power of the polyimide heating sheet.

[0009] In some embodiments, the heating module further comprises a plurality of sampling resistors for regulating the output voltage of the TD1602 voltage stabilizing chip.

[0010] In some embodiments, a temperature control switch is further included in the heating module.

[0011] In some embodiments, the outdoor wall washing lamp further comprises a communication module electrically connected to the main control chip, for sending and receiving communication signals from a host computer.

[0012] In some embodiments, the DC-DC power supply module comprises an XL1509 voltage stabilizing chip.

[0013] In some embodiments, the heating module comprises a step-down module and a heating body.

[0014] In some embodiments, the outdoor wall washing lamp further comprises a constant current module, the input end of which is electrically connected to the main control module, and the output end of which is electrically connected to the light source module, for providing a constant current to the light source module; the constant current module comprises a constant current chip MBI6656.

[0015] In some embodiments, the AD acquisition module comprises a thermistor NTC.

[0016] In some embodiments, the communication module comprises a 75176 communication chip.

[0017] Based on the above embodiments, the present patent adopts a polyimide heating sheet and uses M058DM as the main control chip, utilizes the heating characteristics of the polyimide heating sheet to preheat the electronic components in the lamp, and is provided with a temperature acquisition module inside the lamp to collect the temperature inside the lamp and feed back to the main control chip in real time. When the temperature inside the lamp is lower than the preset value, the main control chip sends a PWM signal to the heating module, and the heating module outputs the actual heating power according to the signal sent by the main control chip. When the temperature acquisition module is greater than the preset value, the main control chip sends a signal to stop the output of the heating module, so that the electronic components in the lamp can always be kept within the working temperature, ensuring the normal operation of the lamp in extremely cold weather (for example, -40℃ to -60℃).

[0018] In addition, the preheatable LED outdoor wall washing lamp of the present application can be compatible with multiple control protocols, including RDM communication protocol and DMX512 protocol. The preheatable LED outdoor wall washing lamp of the present application also supports wide voltage input DC24V-36V. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1A control system schematic diagram of a preheatable LED outdoor wall washing lamp is provided for an embodiment of the present application.

[0020] Figure 2 A circuit structure schematic diagram of a DC-DC power supply module is provided for an embodiment of the present application.

[0021] Figure 3 A circuit structure schematic diagram of a main control module is provided for an embodiment of the present application.

[0022] Figure 4 A circuit structure schematic diagram of a communication module is provided for an embodiment of the present application.

[0023] Figure 5 A circuit structure schematic diagram of an AD detection module is provided for an embodiment of the present application.

[0024] Figure 6 A circuit structure schematic diagram of a voltage reduction part is provided for an embodiment of the present application.

[0025] Figure 7 A circuit structure schematic diagram of a heating main body is provided for an embodiment of the present application.

[0026] Figure 8 A circuit structure schematic diagram of a constant current module is provided for an embodiment of the present application.

[0027] Figure 9 A circuit structure schematic diagram of a light source module is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0029] The present application provides a preheatable LED outdoor wall washing lamp, which can be applied in the field of outdoor brightening, such as Figures 1-9 As shown in the drawings, the present application comprises:

[0030] An analog digital converter (AD) acquisition module 10 is used for detecting the temperature in the lamp;

[0031] A main control module 30 comprises a main control chip, and is electrically connected with the AD acquisition module through a pin. The main control module is used for receiving the information sent by the AD acquisition module, and judging whether to send a heating instruction based on the received information.

[0032] a DC-DC power supply module 20, configured to be connected with an external power supply and supply power to the master control module and the heating module;

[0033] a heating module 50, connected with the master control module to receive the heating instruction, the heating module comprising a step-down module and a heating body, an input end of the step-down module being electrically connected with the DC-DC power supply module, and an output end of the step-down module being electrically connected with the heating body, the heating body being configured to heat the light source module.

[0034] a light source module 40, comprising one or more light emitting diode (LED) light sources.

[0035] According to the above technical solution, the temperature inside the lamp can be collected by the AD acquisition module 10, and real-time feedback can be provided to the master control chip. When the temperature inside the lamp is lower than the preset value, the master control chip sends a pulse width modulation (PWM) signal to the heating module, and the heating module 50 outputs actual heating power according to the signal sent by the master control chip. When the temperature detected by the AD acquisition module 10 is greater than the preset value, the master control chip sends a signal to stop the output of the heating module 50, so that the electronic components inside the lamp can always be kept within the working temperature. In summary, the preheatable LED outdoor wall washing lamp has a state feedback function, and the lamp can be detected in real time to ensure normal operation of the lamp in extremely cold weather (for example, -40℃ to -60℃).

[0036] In some embodiments, the heating body comprises a polyimide heating sheet. The polyimide heating sheet has good insulation capacity, is lighter than traditional heating sheets, is flexible, and can be designed into a corresponding shape according to the needs of different lamps.

[0037] In some embodiments, the heating sheet can be pasted inside the lamp body, and has certain requirements for electrical protection.

[0038] In some embodiments, the master control module 30 can comprise an M058DM master control chip. The application can also be compatible with multiple control protocols, including RDM communication protocol, DMX512 protocol, etc.

[0039] In some embodiments, the application can also comprise a communication module for sending and receiving communication signals and contacting the host computer. The application can also comprise a constant current module for providing constant current to the light source module.

[0040] In some embodiments, as Figure 2As shown, the DC-DC power supply module 20 includes an XL1509 voltage stabilizing chip and its peripheral circuit. Among them, the module can be used as the main power source of the main control chip M058DM. Specifically, when the external power supply (DC 24~DC 36V) is stepped down to 5V by the XL1509, the main control chip is powered. Figure 2 Among them, C1, C2 are input filter capacitors, L1 is a filter inductor, and C7, C8, C5 are output filter capacitors.

[0041] In some embodiments, as shown in Figure 3 As shown, the main control module 30 includes a single-chip microcomputer M058DM and its peripheral circuit; the M058DM is connected to the AD acquisition module through pin 46, continuously receives information sent by the AD acquisition module, and judges in real time whether to send a heating instruction through pin 48; pins 20 and 21 are used as LED constant current modules, and the PWM sending port is used to control the light effect change; J1 is a program burning port, and X1 is a crystal oscillator; RR1, R6, and R8 are current limiting resistors; R3 and R5 are pull-up resistors, and RR2 is a pull-down resistor; C9, C11, C12, and C6 are filter capacitors.

[0042] In some embodiments, as shown in Figure 4 As shown, the communication module can be composed of a U3 (75176) communication chip and its peripheral circuit, and the communication module is electrically connected with the main control chip and is used for sending communication signals and receiving communication signals from the upper computer. When the communication signal (upper computer) sends signals through pins 7 and 6, the corresponding information is sent to the main control chip through pins 1 and 2 after internal processing, and the main control chip can also send the collected temperature data to the upper computer in real time through pins 1 and 2, so that the user can detect the temperature in the lamp in real time; R4 and R7 are current limiting resistors, D2 and D3 are voltage stabilizing diodes, R1 is a pull-down resistor, and R2 is a pull-up resistor.

[0043] In some embodiments, as shown in Figure 5 As shown in the temperature detection circuit in the AD acquisition module 10: the negative temperature coefficient (NTC) is a thermistor, which changes its resistance value according to different temperatures when the temperature of the lamp changes, and the higher the temperature, the smaller the resistance value; the voltage between the NTC and R9 also changes with the resistance value of the NTC; the single-chip microcomputer calculates the temperature of the lamp at this time by comparing the voltage values of the supply voltage (Volt Current Condenser, VCC), the NTC, and R9; C10 is a filter capacitor.

[0044] In some embodiments, the heating module includes a step-down module and a heating body, and the step-down module is as shown in Figure 6As shown; the heating body is as follows Figure 7 As shown. The heating module uses a U4 (TD1602) voltage regulator chip to regulate the external voltage to DC12V to power the heating module. Q1 (NCE6003Y) receives information from the main control chip and controls the output voltage to control the J4 polyimide heating element and output power (heat). S1 is a temperature control switch, which acts as a temperature control fuse. When the temperature is uncontrollable, the switch opens to protect the circuit. R12 and R13 are sampling resistors. The output voltage of U4 is adjusted by adjusting these resistors. The formula is Vout = 1.23 * (1 + R1 / R2). Note: The output voltage cannot exceed the input voltage. C21, C22, and C23 are input filter capacitors, and L3 and L2 are filter inductors. C17, C18, C19, and C20 are output filter capacitors.

[0045] In some implementations, such as Figure 8 As shown, the constant current module, also known as the LED constant current module, has its input terminal electrically connected to the main control module and its output terminal electrically connected to the light source module. This module consists of constant current chips U5 and U6 (MBI6656), an LED light source, and its peripheral circuitry; D8 and D9 are freewheeling diodes, L4 and L5 are filter inductors, RS1-RS4 are sampling resistors, C13 and C14 are input filter capacitors, and C15 and C16 are output filter capacitors.

[0046] In some implementations, the light source module, or LED light source module, can be as follows: Figure 9 As shown.

[0047] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preheatable LED outdoor wall washer, characterized in that The application relates to a lamp heating device. An AD acquisition module is arranged for detecting the temperature in the lamp. A main control module is arranged and comprises a main control chip. The main control module is electrically connected with the AD acquisition module through a pin. The main control module is arranged for receiving information sent by the AD acquisition module and judging whether to send a heating instruction based on the received information. A DC-DC power supply module is arranged for being connected with an external power supply and supplying power to the main control module and a heating module.

2. The preheatable LED outdoor wall washer of claim 1, wherein, The heating module is connected with the main control module to receive the heating instruction.

3. The preheatable LED outdoor wall washer of claim 2, wherein, The heating module comprises a step-down module and a heating main body. The input end of the step-down module is electrically connected with the DC-DC power supply module. The output end of the step-down module is electrically connected with the heating main body.

4. The preheatable LED outdoor wall washer of claim 3, wherein, The heating main body is arranged for heating a light source module.

5. The preheatable LED outdoor wall washer of claim 4, wherein, The light source module comprises one or more LED light sources.

6. The preheatable LED outdoor wall washer of any of claims 1-5, wherein, The heating main body comprises a polyimide heating sheet.

7. The preheatable LED outdoor wall washer of claim 6, wherein, The main control module and the heating module are connected through a pin to transmit the heating instruction.

8. The preheatable LED outdoor wall washer of any of claims 1-5, wherein, The step-down module is a TD1602 voltage stabilizing chip.

9. The preheatable LED outdoor wall washer of any of claims 1-5, wherein, The heating main body is an NCE6003Y.

10. The preheatable LED outdoor wall wash luminaire of any of claims 1-5, wherein, The NCE6003Y controls the output voltage according to the heating instruction, thereby controlling the output power of the polyimide heating sheet. The heating module further comprises a plurality of sampling resistors arranged for adjusting the output voltage of the TD1602 voltage stabilizing chip. The heating module further comprises a temperature control switch. The application further comprises a communication module electrically connected with the main control chip and arranged for sending a communication signal and receiving a communication signal from an upper computer. The communication module comprises a 75176 communication chip. The DC-DC power supply module comprises an XL1509 voltage stabilizing chip. The application further comprises a constant current module. The input end of the constant current module is electrically connected with the main control module. The output end of the constant current module is electrically connected with the light source module. The constant current module is arranged for providing a constant current for the light source module. The constant current module comprises a constant current chip MBI6656. The AD acquisition module comprises a thermistor NTC.

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