CN213880343U - Light-emitting device and refrigerator - Google Patents
Light-emitting device and refrigerator Download PDFInfo
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- CN213880343U CN213880343U CN202022802677.0U CN202022802677U CN213880343U CN 213880343 U CN213880343 U CN 213880343U CN 202022802677 U CN202022802677 U CN 202022802677U CN 213880343 U CN213880343 U CN 213880343U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a light emitting device and refrigerator, light emitting device includes: the light-emitting unit adjusts the luminous intensity according to the light sensed by the sensing device, and the sensing device and the light-emitting device are arranged in a separated mode. Compared with the prior art, the utility model discloses can adjust light-emitting device's luminous luminance according to different light intensity environment, can also reduce the influence of light-emitting device to induction system daylighting effect simultaneously.
Description
Technical Field
The utility model relates to an electrical apparatus field, especially a illuminator and refrigerator.
Background
The brightness of a display panel of the electric control refrigerator is usually fixed, the display panel is lightened under the operation of a person, and the display panel is extinguished after 1 minute under the operation of no person. The display mode reduces the energy consumption of the refrigerator, but has a problem at the same time. In places with strong light, such as exhibition halls and sales places, the display effect is not clear enough; in the home of the user, the display panel of the refrigerator is turned on at night to be dazzled. It is desirable to introduce a means for collecting the intensity of light that increases the brightness of the display panel when the light is strong and decreases when the light is weak. The problems of weak acquisition current signals, poor consistency of amplification by using an operational amplifier, high price of using a visible light module and the like exist in the industry when the visible light detector is adopted. In the mounting mode, when the display panel is lighted, the LED light of the display panel is scattered through reflection, and the visible light collection precision is influenced.
Therefore, how to design a light emitting device and a refrigerator to avoid the problem that the light emitting device affects the visible light collection precision is an urgent technical problem to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
To the technical problem that display panel LED lamp influences the accuracy is gathered to visible light among the prior art, the utility model provides a illuminator and refrigerator.
The technical scheme of the utility model for, a display device is proposed, include: the light-emitting unit adjusts the luminous intensity according to the light sensed by the sensing device, and the sensing device and the light-emitting device are arranged in a separated mode.
Further, the light emitting unit includes: the light-emitting unit comprises a light-emitting circuit and a sampling circuit, wherein the sampling circuit is connected with the induction device, and the light-emitting unit adjusts the light-emitting intensity according to a sampling signal of the sampling circuit.
The control unit is connected with the light-emitting circuit and the sampling circuit, the sampling circuit sends the sampling signal to the control unit, and the control unit adjusts the light-emitting state of the light-emitting circuit according to the sampling signal.
Further, the sampling circuit comprises a resistor R70, a resistor R71, a capacitor C9 and a connector CN 1;
one end of the resistor R70 is connected with the control unit, the other end of the resistor R70 is connected with the power supply after being connected with the connector CN1 in series, one end of the capacitor C9 is connected between the resistor R70 and the control unit, the other end of the capacitor C9 is grounded, one end of the resistor R71 is connected between the capacitor C9 and the ground, the other end of the resistor R70 is connected between the resistor R1 and the connector CN1 is connected with the sensing device. Further, the light emitting circuit includes: a transistor Q1 to a transistor Q5, a transistor Q17 to a transistor Q24, a resistor R3 to a resistor R9, a resistor R90 to a resistor R97, and an LED lamp L1 to an LED lamp L73;
the emitting electrodes of the triodes Q1 to Q5 are connected to the ground, the bases of the triodes Q3878 and Q5 are connected to the lamp scanning port COM1 and the lamp scanning port COM5, and the collectors of the triodes Q1 to Q5 are respectively connected with the resistors R3 to R9 and the resistors R90 to R97;
the other ends of the resistors R3 to R9 are respectively connected with a lamp scanning port SEG1 to a lamp scanning port SEG7, the other ends of the resistors R90 to R97 are connected with the collector of the triode Q17 to the collector of the triode Q24, the bases of the triodes Q17 to Q24 are respectively connected with the lamp scanning port SEG8 to the lamp scanning port SEG15, and the emitters of the triodes Q17 to Q24 are grounded;
the LED lamps L1 to L73 are connected in series between the lamp scanning ports COM1 to COM5 and the resistors R3 to R9 and R90 to R97.
Further, the control unit includes: the lamp scanning port COM1 to lamp scanning port COM5, the lamp scanning port SEG1 to lamp scanning port SEG15, the lamp scanning port COM1 to lamp scanning port COM5, and the lamp scanning port SEG1 to lamp scanning port SEG15 are connected with the light-emitting circuit.
Further, still including the installation induction system's PCB board, the sampling circuit pass through the PCB board with induction system connects.
Further, the PCB is mounted on the bracket of the light-emitting device and is arranged above the light-emitting device.
Further, the PCB comprises a light-blocking plastic part coated with glass printing ink, wherein the light-blocking plastic part wraps the PCB;
and the glass printing ink is provided with a photosensitive window matched with the sensing device in size at the sensing device.
The utility model also provides a refrigerator, the refrigerator adopts above-mentioned illuminator.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1. through the cooperation of luminescence unit and induction system, can be under the environment of different light intensity, corresponding luminous intensity who adjusts illuminator to be suitable for different environmental demands.
2. The induction device and the light-emitting device are arranged separately and arranged on the support of the light-emitting device, and meanwhile, the light-blocking plastic piece and the light-sensitive window are arranged, so that the technical problem that the light emitted by the light-emitting device is reflected or scattered to the induction device to influence the collection precision of visible light can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of a light emitting device of the present invention;
fig. 2 is a schematic structural diagram of the sampling circuit of the present invention;
fig. 3 is a schematic structural diagram of the light emitting circuit of the present invention;
fig. 4 is a schematic structural diagram of the control unit of the present invention;
the display panel 1, the PCB 2 and the induction device 3 are respectively arranged on the display panel, the PCB and the induction device.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Thus, a feature indicated in this specification will serve to explain one of the features of an embodiment of the invention, and not to imply that every embodiment of the invention must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.
The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.
The utility model provides a light-emitting device, its induction system 3 and the luminescence unit including response environment light, the luminescence unit adjusts luminous intensity according to the light of induction system 3 response, and its induction system 3 separates the setting with light-emitting device.
Referring to fig. 1, specifically, the light emitting unit of the present invention is a display panel 1, and the sensing device 3 is separated from the display panel 1, mounted on the support of the display panel 1, and disposed above the display panel 1, and separated from the display panel 1, so as to reduce the influence of the light emitted by the display panel 1 on the light collected by the sensing device 3. If it is mounted on the display panel 1, the emitted light beam is easily emitted or scattered to the sensing device 3 when the display panel 1 emits light, thereby affecting the detection effect of the sensing device 3, and if the sensing device 3 is placed at another position, it is easily covered by dust, resulting in the loss of the detection function. Specifically, the sensing device 3 adopts a photosensitive diode HOICD0201B, and the wavelength range of the collected visible light is 450 nm-750 nm.
Further, still include PCB board 2 that is used for installing induction system 3, induction system 3 welds on PCB board 2, and sampling circuit passes through PCB board 2 and is connected with induction system.
For the better detection that the light that guarantees that display screen 1 sends can not influence induction system 3, be equipped with the working of plastics that hinders at PCB board 2 department, should hinder the working of plastics parcel PCB board 2, can reduce the influence that display screen 1 brought. Still the coating has glass printing ink on hindering light working of plastics, and a circular shape sensitization window has been seted up in photosensitive element 3 department to this glass printing ink, and its size and photosensitive element 3 phase-match make visible light can see through the opening to reduce the influence of glass printing ink to illumination intensity.
Specifically, the light emitting unit includes: the sampling circuit is connected with the induction device through the PCB 2 and can generate sampling signals according to the visible light brightness induced by the induction device 3, and the light-emitting unit adjusts the light-emitting intensity according to the sampling signals of the sampling circuit.
The light-emitting device further comprises a control unit, the control unit is connected with the light-emitting circuit and the sampling circuit, the sampling circuit sends the sampling signal to the control unit, and the control unit adjusts the light-emitting state of the light-emitting circuit according to the sampling signal.
Referring to fig. 2, specifically, the sampling circuit includes a resistor R70, a resistor R71, a capacitor C9 and a connector CN1, one end of the resistor R70 is connected to the control unit, the other end is connected in series with the connector CN1 and then connected to the power supply, where the power supply voltage is 5V, one end of the capacitor C9 is connected between the resistor R70 and the control unit, the other end is grounded, one end of the resistor R71 is connected between the capacitor C9 and the ground, and the other end is connected between the resistor R70 and the connector CN 1.
Connector CN1 is the 2PIN connector, and the sampling circuit is connected to the PCB board through this 2PIN connector, and resistance R70 and electric capacity C9 constitute filter circuit, filters the collection voltage, and when illumination intensity changed, the photosensitive current that the photosensitive diode gathered also is different, and the voltage on the resistance R71 is also different, and the voltage signal that the control unit received is also different. The control unit can receive different voltage signals, sampling signals, according to different illumination intensity sensed by the photosensitive diode, and after the control unit receives different sampling signals, the control unit can control the light-emitting unit to generate different light-emitting intensity according to different sampling signals.
Referring to fig. 3, in particular, the light emitting circuit includes: a transistor Q1 to a transistor Q5, a transistor Q17 to a transistor Q24, a resistor R3 to a resistor R9, a resistor R90 to a resistor R97, and an LED lamp L1 to an LED lamp L73;
the emitting electrodes of the triodes Q1 to Q5 are connected with the ground, the bases of the triodes Q3878 and Q5 are connected with the lamp scanning ports COM1 and COM5, and the collectors of the triodes Q1 and Q5 are respectively connected with the resistors R3 to R9 and the resistors R90 to R97;
the other ends of the resistors R3 and R9 are respectively connected with a lamp scanning port SEG1 and a lamp scanning port SEG7, the other ends of the resistors R90 and R97 are connected with a triode Q17 and a collector of a triode Q24, the bases of the triodes Q17 and Q24 are respectively connected with the lamp scanning port SEG8 and the lamp scanning port SEG15, and the emitters of the triodes Q17 and Q24 are grounded;
the LED lamps L1 to L73 are connected in series between the lamp scanning ports COM1 to COM5 and the resistors R3 to R9 and R90 to R97.
Referring to fig. 4, specifically, the control unit includes: the lamp scanning port COM1 to lamp scanning port COM5, the lamp scanning port SEG1 to lamp scanning port SEG15, the lamp scanning port COM1 to lamp scanning port COM5, and the lamp scanning port SEG1 to lamp scanning port SEG15 are connected with a light-emitting circuit. The control unit also has a pin DSNK, and one end of the resistor R70 in the sampling circuit is connected to the pin DSNK of the control unit.
The following is to the utility model discloses a specific explanation is done to the principle of giving out light, at first induction system 3 sets up on PCB board 2, it is used for gathering the visible light, and produce different photosensitive current through different illumination intensity, sampling circuit is connected to this PCB board 2 through connector CN1, when photosensitive current changes, voltage on each resistance also can change among the sampling circuit, the sampling signal of pin DSNK output also can change, after the control unit received this sampling signal, through the scanning frequency and the pulse width who change lamp scanning mouth COM1 to lamp scanning mouth COM5, change display panel LED lamp luminance.
See the utility model discloses a lighting circuit, its lamp scanning mouth COM1 to lamp scanning mouth COM5 are connected to triode Q1 to triode Q5's base respectively, can be through the switching on of voltage control triode Q1 to triode Q5 of control lamp scanning mouth COM1 to lamp scanning mouth COM5 to adjust LED lamp L1 to LED lamp L73's luminous state. The lamp scanning ports SEG1 to SEG7 of the control unit are connected to resistors R3 to R9 of a light-emitting circuit, the control unit can change the light-emitting intensity of an LED lamp L1 to an LED lamp L35 by controlling the voltage from the lamp scanning ports SEG1 to SEG7, meanwhile, the lamp scanning ports SEG8 to SEG15 are connected to the bases of a triode Q17 to a triode Q24, and the control unit can change the light-emitting states of the LED lamp L36 to the LED lamp L73 according to the voltage from the lamp scanning ports SEG8 to SEG 15.
Specifically, the display panel 1 is provided with three brightness levels, which correspond to the conditions of daytime, cloudy day and night respectively, and when detecting that the illumination intensity of light is very large in daytime, the scanning pulse width is increased, the brightness of the LED lamp of the display panel 1 is clear, when detecting that the illumination intensity of visible light in cloudy day is general, the scanning pulse width is set to be a middle level, the brightness of the LED lamp of the display panel 1 is a middle level, and when detecting that the brightness of visible light in night is very weak, the scanning pulse width is reduced, and the brightness of the LED lamp of the display panel 1 is soft.
The illumination intensity of the LED illumination control circuit is adjusted according to the voltage received by the control unit, the voltage received by the control unit DSNK is the voltage of the sampling circuit, the sampling circuit is connected to the PCB, the photosensitive diodes are arranged on the PCB, the photosensitive currents of the photosensitive diodes are different when the illumination intensity of visible light is different, and the voltages received by the control unit are different. The control unit can be according to the voltage size difference of gathering promptly to calculate the different current signal of department, according to photodiode's characteristic, its photosensitive current corresponds different illumination intensity respectively, and the control unit is different according to its received voltage, calculates different current signal, thereby reachs current illumination intensity, can adjust the different luminance of LED lamp according to illumination intensity.
Compared with the prior art, the utility model discloses can change luminescence intensity of luminescence unit according to the illumination intensity of the visible light of difference to improve its display effect, simultaneously, set up visible light sensing device on the PCB board, and set up in the display panel top, can avoid the not good problem of detection effect that the reflection of light of display panel leads to, simultaneously, the utility model discloses still be provided with the working of plastics of hindering light and glass printing ink, can further eliminate the daylighting problem that the display panel reflection of light or scattering caused.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A light emitting device comprising: the illuminating device comprises a sensing device for sensing ambient light and a light-emitting unit, wherein the light-emitting unit adjusts the light-emitting intensity according to the light sensed by the sensing device;
the light emitting unit includes: the sampling circuit is connected with the induction device, and the light-emitting unit adjusts the light-emitting intensity according to the sampling signal of the sampling circuit;
the control unit is connected with the light-emitting circuit and the sampling circuit;
the sampling circuit comprises a resistor R70, a resistor R71, a capacitor C9 and a connector CN 1;
one end of the resistor R70 is connected with the control unit, the other end of the resistor R70 is connected with the power supply after being connected with the connector CN1 in series, one end of the capacitor C9 is connected between the resistor R70 and the control unit, the other end of the capacitor C9 is grounded, one end of the resistor R71 is connected between the capacitor C9 and the ground, the other end of the resistor R70 is connected between the resistor R1 and the connector CN1 is connected with the sensing device.
2. The lighting apparatus according to claim 1, wherein the sampling circuit sends the sampling signal to the control unit, and the control unit adjusts a lighting state of the lighting circuit according to the sampling signal.
3. The light-emitting apparatus according to claim 1, wherein the light-emitting circuit comprises: a transistor Q1 to a transistor Q5, a transistor Q17 to a transistor Q24, a resistor R3 to a resistor R9, a resistor R90 to a resistor R97, and an LED lamp L1 to an LED lamp L73;
the emitting electrodes of the triodes Q1 to Q5 are connected to the ground, the bases of the triodes Q3878 and Q5 are connected to the lamp scanning port COM1 and the lamp scanning port COM5, and the collectors of the triodes Q1 to Q5 are respectively connected with the resistors R3 to R9 and the resistors R90 to R97;
the other ends of the resistors R3 to R9 are respectively connected with a lamp scanning port SEG1 to a lamp scanning port SEG7, the other ends of the resistors R90 to R97 are connected with the collector of the triode Q17 to the collector of the triode Q24, the bases of the triodes Q17 to Q24 are respectively connected with the lamp scanning port SEG8 to the lamp scanning port SEG15, and the emitters of the triodes Q17 to Q24 are grounded;
the LED lamps L1 to L73 are connected in series between the lamp scanning ports COM1 to COM5 and the resistors R3 to R9 and R90 to R97.
4. The lighting apparatus according to claim 2, wherein the control unit includes: the lamp scanning port COM1 to lamp scanning port COM5, the lamp scanning port SEG1 to lamp scanning port SEG15, the lamp scanning port COM1 to lamp scanning port COM5, and the lamp scanning port SEG1 to lamp scanning port SEG15 are connected with the light-emitting circuit.
5. The lighting device of claim 1, further comprising a PCB board on which the sensing device is mounted, the sampling circuit being connected to the sensing device through the PCB board.
6. The lighting device according to claim 5, wherein the PCB is mounted on a bracket of the lighting device and is disposed above the lighting device.
7. The light-emitting device according to claim 5, further comprising a light-blocking plastic member coated with glass ink, the light-blocking plastic member covering the PCB board;
and the glass printing ink is provided with a photosensitive window matched with the sensing device in size at the sensing device.
8. The refrigerator, characterized in that the refrigerator employs the light emitting device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802677.0U CN213880343U (en) | 2020-11-27 | 2020-11-27 | Light-emitting device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802677.0U CN213880343U (en) | 2020-11-27 | 2020-11-27 | Light-emitting device and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213880343U true CN213880343U (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022802677.0U Active CN213880343U (en) | 2020-11-27 | 2020-11-27 | Light-emitting device and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213880343U (en) |
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2020
- 2020-11-27 CN CN202022802677.0U patent/CN213880343U/en active Active
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