Showcase projection lamp capable of switching color temperature

Abstract

The utility model discloses a showcase projection lamp capable of switching color temperature, which relates to the technical field of showcase projection lamps and comprises a + 5V power adapter, a touch key KEY1, a VDD voltage, a software downloading port JP1 and a single chip microcomputer U1, and an overvoltage protection resistor R2, a resistor R3, a voltage stabilizing diode ZD1, a triode Q2, a resistor R4, a capacitor C3 and a triode Q1 are arranged at the input end of the VDD voltage. According to the showcase capable of switching the color temperature, the lamp is projected, the touch control is performed for the first time, the lamp is lighted, the color temperature of the lamp is 3000K, the brightness is 100%, the touch control is performed for the second time, the lamp is lighted, the color temperature of the lamp is 3000K, the brightness is 50%, the touch control is performed for the third time, the lamp is lighted, the color temperature of the lamp is 6500K, the brightness is 100%, the touch control is performed for the fourth time, and the lamp is turned off in sequence, so that different customer requirements are met through a single touch key; the projection lamp color temperature can be switched, and meanwhile, a software downloading port JP1 can be convenient for personnel to refresh programs of different versions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of showcase lighting, specifically a showcase lighting with switchable color temperature. BACKGROUND

[0002] Showcase lighting usually refers to a kind of lamp for illuminating the exhibits in the interior of showcase to highlight the display effect, and the lighting is usually installed on the top or side of the showcase to project light onto the exhibits, thereby enhancing the visual appeal and display effect of the exhibits, and the existing showcase lighting still has certain defects when in use.

[0003] The existing showcase lighting can highlight the detail features of exhibits, help the audience better appreciate and understand the exhibits, and in the showcase of a shopping mall, the lighting can attract the attention of customers, guide them to focus on and purchase goods, and the color temperature of the traditional showcase lighting is relatively single and not easy to adjust, so that the color temperature of the showcase lighting is difficult to switch and adjust according to the types of exhibits. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a showcase lighting with switchable color temperature to solve the problem of the current showcase lighting on the market not easy to switch color temperature as proposed in the above background technology.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a kind of display cabinet light of switchable color temperature, comprising: +5V power adapter, touch button KEY1, VDD voltage, software download port JP1 and single-chip microcomputer U1, the VDD voltage input end has overvoltage protection resistance R2, resistance R3, stabilivolt diode ZD1, triode Q2, resistance R4, capacitor C3 and triode Q1 group, be provided with ELVD1 / PA4 pin, TKCAP pin, VDD pin, VSS pin, PA2 / TK2 pin, PA1 / TK1 pin, PA0 / TK0 pin and PA3 / TK3 pin on the single-chip microcomputer U1, be provided with signal line SDA and clock line SCK on the software download port JP1, +5V power adapter one end and resistance R2 and stabilivolt diode ZD1 between series connection, stabilivolt diode ZD1 one end is ground connection, +5V power adapter one end and resistance R2, resistance R3 and the base electrode of triode Q2 are series connection, the collector of triode Q2 is connected with resistance R4, the resistance R4 one end is ground connection, +5V power adapter one end and the emitter of triode Q2 are series connection, triode Q1 and resistance R4 are series connection, diode D1 is in series connection with capacitor C4 and capacitor C5 between VDD voltage and triode Q1, the diode D1 one end is in series connection with capacitor C4 and capacitor C5, capacitor C4 and capacitor C5 are in series connection with the VSS pin on single-chip microcomputer U1, the diode D1, capacitor C4 and capacitor C5 are in series connection with the VDD pin on single-chip microcomputer U1, touch button KEY1 and the PA3 / TK3 pin on single-chip microcomputer U1 are in series connection with resistance R1, the PA3 / TK3 pin on single-chip microcomputer U1 and resistance R1 are in series connection with capacitor C1, the capacitor C1 one end is ground connection, the TKCAP pin on single-chip microcomputer U1 is in series connection with capacitor C2, the capacitor C2 one end is ground connection, the ELVD1 / PA4 pin on the single-chip microcomputer U1 is connected with line Y, the PA2 / TK2 pin on single-chip microcomputer U1 is connected with line W, the PA1 / TK1 pin on single-chip microcomputer U1 and the signal line SDA on software download port JP1 are docked, the PA0 / TK0 pin on single-chip microcomputer U1 and the clock line SCK on software download port JP1 are docked, the software download port JP1 and VDD voltage are docked, the software download port JP1 one end is ground connection.

[0006] Preferably, the triode Q2 and capacitor C3 are in parallel, and the capacitor C4 and capacitor C5 are in parallel.

[0007] Preferably, the over-current self-locking protection mechanism of the line Y is composed of the resistor R6, the resistor R8, the transistor Q4 and the transistor Q5, the resistor R5 is connected in series between the line Y and the resistor R6, the resistor R8 is connected in series with the resistor R9 and the resistor R10 at one end, the resistor R9 and the resistor R10 are connected in parallel, and the resistor R9 and the resistor R10 are connected to the ground at one end, and the resistor R9 and the resistor R10 are connected with the capacitor C6 through the ground.

[0008] Preferably, the resistor R5, the resistor R6 and the transistor Q4 are connected in series with the resistor R7, the resistor R7 is connected in series between the resistor R9 and the resistor R10, the transistor Q3 is connected in series at one end of the resistor R7, and the inductor L2 is connected in series between the transistor Q3 and the capacitor C6.

[0009] Preferably, the inductor L2 is connected with the diode D2 at one end, the diode D2 is connected with the inductor L1 at one end, and the inductor L1 is connected with the VDD voltage at one end.

[0010] Preferably, the over-current self-locking protection mechanism of the line W is composed of the resistor R12, the resistor R14, the transistor Q7 and the transistor Q8, the resistor R11 is connected in series between the line W and the resistor R12, the resistor R14 is connected in series with the resistor R15 and the resistor R16 at one end, the resistor R15 and the resistor R16 are connected in parallel, and the resistor R15 and the resistor R16 are connected to the ground at one end, and the resistor R15 and the resistor R16 are connected with the capacitor C10 through the ground.

[0011] Preferably, the resistor R11, the resistor R12 and the transistor Q7 are connected in series with the resistor R13, the resistor R13 is connected in series between the resistor R15 and the resistor R16, the transistor Q6 is connected in series at one end of the resistor R13, the inductor L4 is connected in series between the transistor Q6 and the capacitor C10, the diode D3 is connected at one end of the inductor L4, the inductor L3 is connected at one end of the diode D3, the inductor L3 is connected with the VDD voltage at one end, the capacitor C7, the capacitor C8 and the capacitor C9 are connected between the inductor L3 and the VDD voltage respectively, the capacitor C7, the capacitor C8 and the capacitor C9 are connected in parallel with each other, and the capacitor C7, the capacitor C8 and the capacitor C9 are connected to the ground at one end.

[0012] Compared with the prior art, the beneficial effects of the display case lamp with switchable color temperature are as follows: the overvoltage protection resistor R2, the resistor R3, the stabilizing diode ZD1, the triode Q2, the resistor R4, the capacitor C3 and the triode Q1 in the VDD voltage input end can effectively prevent the wrong adapter from being used, meanwhile, the diode D1 is designed as polarity anti-reverse connection, so that the harm caused by reverse connection of the line can be avoided, the capacitor C4 and the capacitor C5 are filter capacitors, the capacitor C2 is used for adjusting touch sensitivity, the resistor R5, the resistor R7, the resistor R9, the resistor R10, the triode Q3, the resistor R11, the resistor R13, the resistor R15, the resistor R16 and the triode Q6 are LED driving parts, the capacitor C7, the capacitor C8 and the capacitor C9 are load lamp filter capacitors, meanwhile, the inductor L1, the inductor L2, the diode D2, the capacitor C6, the inductor L3, the inductor L4, the diode D3 and the capacitor C10 are EMI elements, the EMI elements can reduce radiation interference and ensure stable use of the lamp, the ON / OFF of the lamp can be controlled by the single-key touch, the color temperature can be switched, the touch key KEY1 is a touch switch, the lamp is turned on at the first touch, at this time, the color temperature of the lamp is 3000K and the brightness is 100%, the lamp is turned on at the second touch, at this time, the color temperature of the lamp is 3000K and the brightness is 50%, the lamp is turned on at the third touch, at this time, the color temperature of the lamp is 6500K and the brightness is 100%, the lamp is turned off at the fourth touch, the result of the fifth touch is the same as that of the first touch, and the cycle is repeated, so that different customer demands can be met by the single touch key, the lamp color temperature can be switched, and meanwhile, the software download port JP1 can facilitate personnel to refresh different versions of programs. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a circuit control structure schematic diagram of the utility model;

[0014] Figure 2 It is a circuit control structure schematic diagram of the software download port JP1 of the utility model;

[0015] Figure 3 It is a circuit control structure schematic diagram of the line Y of the utility model;

[0016] Figure 4 It is a circuit control structure schematic diagram of the line W of the utility model. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer toFigures 1-4The utility model provides a kind of technical scheme: a kind of display cabinet light of switchable color temperature, comprising: +5V power adapter, touch button KEY1, VDD voltage, software download port JP1 and single-chip microcontroller U1, the VDD voltage input end has overvoltage protection resistance R2, resistance R3, zener diode ZD1, triode Q2, resistance R4, capacitor C3 and triode Q1 are constituted, the single-chip microcontroller U1 is provided with ELVD1 / PA4 pin, TKCAP pin, VDD pin, VSS pin, PA2 / TK2 pin, PA1 / TK1 pin, PA0 / TK0 pin and PA3 / TK3 pin, the software download port JP1 is provided with signal line SDA and clock line SCK, the +5V power adapter one end is connected between resistance R2 and zener diode ZD1 in series, the zener diode ZD1 one end is ground connection, the +5V power adapter one end is connected between resistance R2, resistance R3 and the base of triode Q2 in series, the collector of triode Q2 is connected with resistance R4, the resistance R4 one end is ground connection, the +5V power adapter one end is connected between the emitter of triode Q2 in series, the triode Q1 is connected with resistance R4 in series, the VDD voltage and triode Q1 are commonly connected with diode D1 in series, the diode D1 one end is connected with capacitor C4 and capacitor C5 in series, the capacitor C4 and capacitor C5 are connected with the VSS pin on single-chip microcontroller U1 in series, the diode D1, capacitor C4 and capacitor C5 are connected with the VDD pin on single-chip microcontroller U1 in series, the touch button KEY1 and the PA3 / TK3 pin on single-chip microcontroller U1 are commonly connected with resistance R1 in series, the PA3 / TK3 pin on single-chip microcontroller U1 is connected with capacitor C1 in series between resistance R1, the capacitor C1 one end is ground connection, the TKCAP pin on single-chip microcontroller U1 is connected with capacitor C2 in series, the capacitor C2 one end is ground connection, the ELVD1 / PA4 pin on the single-chip microcontroller U1 is connected with line Y, the PA2 / TK2 pin on single-chip microcontroller U1 is connected with line W, the PA1 / TK1 pin on single-chip microcontroller U1 is connected with the signal line SDA on software download port JP1, the PA0 / TK0 pin on single-chip microcontroller U1 is connected with the clock line SCK on software download port JP1, the software download port JP1 is connected with VDD voltage, the software download port JP1 one end is ground connection, triode Q2 and capacitor C3 are connected in parallel, the capacitor C4 and capacitor C5 are connected in parallel, the overcurrent self-locking protection mechanism of line Y is composed of resistance R6, resistance R8, triode Q4 and triode Q5, the line Y is connected with resistance R5 in series, the resistance R8 one end is connected with resistance R9 and resistance R10 in series, the resistance R9 and resistance R10 are connected in parallel between, and resistance R9 and resistance R10 one end is ground connection, resistance R9 and resistance R10 are connected with capacitor C6 through ground connection,The resistance R5, the resistance R6 and the triode Q4 are connected in series with the resistance R7, the resistance R7 is connected in series between the resistance R9 and the resistance R10, one end of the resistance R7 is connected in series with the triode Q3, the triode Q3 and the inductor L2 are connected in series, one end of the inductor L2 is connected with the diode D2, one end of the diode D2 is connected with the inductor L1, one end of the inductor L1 is connected with the VDD voltage, the overcurrent self-locking protection mechanism of the line W is composed of the resistance R12, the resistance R14, the triode Q7 and the triode Q8, the line W is connected in series with the resistance R11, one end of the resistance R14 is connected in series with the resistance R15 and the resistance R16, the resistance R15 and the resistance R16 are connected in parallel, and one end of the resistance R15 and the resistance R16 is connected with the ground, the resistance R15 and the resistance R16 are connected with the capacitor C10 through the ground, the resistance R11, the resistance R12 and the triode Q7 are connected in series with the resistance R13, the resistance R13 is connected in series between the resistance R15 and the resistance R16, one end of the resistance R13 is connected in series with the triode Q6, the triode Q6 and the capacitor C10 are connected in series, one end of the inductor L4 is connected with the diode D3, one end of the diode D3 is connected with the inductor L3, one end of the inductor L3 is connected with the VDD voltage, the inductor L3 is connected with the capacitor C7, the capacitor C8 and the capacitor C9 respectively between the VDD voltage, the capacitor C7, the capacitor C8 and the capacitor C9 are connected in parallel, and one end of the capacitor C7, the capacitor C8 and the capacitor C9 is connected with the ground.

[0019] In specific implementation, the overvoltage protection resistance R2, the resistance R3, the stabilizing diode ZD1, the triode Q2, the resistance R4, the capacitor C3 and the triode Q1 through the VDD voltage input end can effectively prevent the wrong adapter, at the same time, the diode D1 is the polarity anti-reverse connection design, which can avoid the harm caused by the reverse connection of the line, the capacitor C4 and the capacitor C5 are filter capacitors, the capacitor C2 is used for adjusting the touch sensitivity, the resistance R5, the resistance R7, the resistance R9, the resistance R10, the triode Q3 and the resistance R11, the resistance R13, the resistance R15, the resistance R16 and the triode Q6 are LED driving parts, the capacitor C7, the capacitor C8 and the capacitor C9 are load lamp filter capacitors, at the same time, the inductor L1, the inductor L2, the diode D2, the capacitor C6, the inductor L3, the inductor L4, the diode D3 and the capacitor C10 are EMI elements, the EMI elements can reduce the radiation interference and ensure the stable use of the lamp, the ON / OFF of the single key touch control lamp can switch the color temperature, and the touch key KEY1 is a touch switch.

[0020] Reference Figures 1-4It can be known that the light is on at the first touch, the color temperature of the light is 3000K, and the brightness is 100%; the light is on at the second touch, the color temperature of the light is 3000K, and the brightness is 50%; the light is on at the third touch, the color temperature of the light is 6500K, and the brightness is 100%; the light is off at the fourth touch; the result of the fifth touch is the same as the first touch; and the cycle is repeated, so that different customer requirements are realized through a single touch button, the color temperature of the light can be switched, and the software download port JP1 can facilitate personnel to refresh different versions of programs.

[0021] In summary, when the display case light is used, the ON / OFF of the light can be controlled by a single touch button to switch the color temperature, the touch button KEY1 is a touch switch, the light is on at the first touch, the color temperature of the light is 3000K, and the brightness is 100%; the light is on at the second touch, the color temperature of the light is 3000K, and the brightness is 50%; the light is on at the third touch, the color temperature of the light is 6500K, and the brightness is 100%; the light is off at the fourth touch; the result of the fifth touch is the same as the first touch; and the cycle is repeated, so that different customer requirements are realized through a single touch button, the color temperature of the light can be switched, and the software download port JP1 can facilitate personnel to refresh different versions of programs, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0022] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A display case floodlight with switchable color temperature, comprising: The system comprises a +5V power adapter, a touch button KEY1, a VDD voltage, a software download port JP1, and a microcontroller U1, characterized in that: The VDD voltage input terminal is composed of overvoltage protection resistor R2, resistor R3, Zener diode ZD1, transistor Q2, resistor R4, capacitor C3, and transistor Q1. The microcontroller U1 is equipped with ELVD1 / PA4 pin, TKCAP pin, VDD pin, VSS pin, PA2 / TK2 pin, PA1 / TK1 pin, PA0 / TK0 pin, and PA3 / TK3 pin. The software download port JP1 is equipped with signal line SDA and clock line SCK. One end of the +5V power adapter is connected in series with resistor R2 and Zener diode ZD1. One end of Zener diode ZD1 is grounded. Another end of the +5V power adapter is connected in series with resistors R2 and R3 and the base of transistor Q2. The collector of transistor Q2 is connected to resistor R4, one end of which is grounded. One end of the +5V power adapter is connected in series with the emitter of transistor Q2. Transistor Q1 is connected in series with resistor R4. A diode D1 is connected in series with both the VDD voltage and transistor Q1. One end of diode D1 is connected in series with capacitors C4 and C5. Capacitors C4 and C5 are connected in series with the VSS pin of microcontroller U1. Diode D1, capacitors C4 and C5 are connected in series with the VDD pin of microcontroller U1. The touch button KEY1... A resistor R1 is connected in series with the PA3 / TK3 pin on the microcontroller U1. A capacitor C1 is connected in series between the PA3 / TK3 pin on the microcontroller U1 and the resistor R1, with one end of the capacitor C1 grounded. A capacitor C2 is connected in series with the TKCAP pin on the microcontroller U1, with one end of the capacitor C2 grounded. The ELVD1 / PA4 pin on the microcontroller U1 is connected to line Y. The PA2 / TK2 pin on the microcontroller U1 is connected to line W. The PA1 / TK1 pin on the microcontroller U1 is connected to the signal line SDA on the software download port JP1. The PA0 / TK0 pin on the microcontroller U1 is connected to the clock line SCK on the software download port JP1. The software download port JP1 is connected to the VDD voltage, with one end of the software download port JP1 grounded.

2. The display case floodlight with switchable color temperature according to claim 1, characterized in that: The transistor Q2 is connected in parallel with the capacitor C3, and the capacitors C4 and C5 are connected in parallel.

3. A display case floodlight with switchable color temperature according to claim 1, characterized in that: The overcurrent self-locking protection mechanism of line Y consists of resistors R6 and R8, transistor Q4 and transistor Q5. Resistor R5 is connected in series between line Y and resistor R6. Resistor R9 and resistor R10 are connected in series at one end of resistor R8. Resistor R9 and resistor R10 are connected in parallel, and one end of resistor R9 and resistor R10 is grounded. Resistor R9 and resistor R10 are connected to capacitor C6 through grounding.

4. A display case floodlight with switchable color temperature according to claim 3, characterized in that: The resistors R5, R6, and Q4 are connected in series with a resistor R7. The resistor R7 is connected in series with resistors R9 and R10. One end of the resistor R7 is connected in series with a transistor Q3. The transistor Q3 and capacitor C6 are connected in series with an inductor L2.

5. A display case floodlight with switchable color temperature according to claim 4, characterized in that: One end of the inductor L2 is connected to the diode D2, one end of the diode D2 is connected to the inductor L1, and one end of the inductor L1 is connected to the VDD voltage.

6. A display case floodlight with switchable color temperature according to claim 1, characterized in that: The overcurrent self-locking protection mechanism of line W consists of resistors R12 and R14, transistor Q7 and transistor Q8. Resistor R11 is connected in series between line W and resistor R12. Resistor R15 and resistor R16 are connected in series at one end of resistor R14. Resistor R15 and resistor R16 are connected in parallel, and one end of resistor R15 and resistor R16 is grounded. Resistor R15 and resistor R16 are connected to capacitor C10 through grounding.

7. A display case floodlight with switchable color temperature according to claim 6, characterized in that: Resistors R11 and R12, and transistor Q7 are connected in series with resistor R13. Resistor R13 is connected in series with resistors R15 and R16. Transistor Q6 is connected in series with one end of resistor R13. Transistor Q6 and capacitor C10 are connected in series with inductor L4. One end of inductor L4 is connected to diode D3. One end of diode D3 is connected to inductor L3. One end of inductor L3 is connected to VDD voltage. Capacitors C7, C8, and C9 are connected between inductor L3 and VDD voltage. Capacitors C7, C8, and C9 are connected in parallel. One end of capacitors C7, C8, and C9 is grounded.

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