Lighting device and circuit capable of indicating lighting lifetime

Abstract

The utility model relates to a lighting device and a circuit capable of indicating lighting lifetime. The lighting device includes a lighting diode having a rated lighting lifetime and connected to an external power source to receive power from the external power source and emit light; a controller connected to the lighting diode to accumulate a lighting duration of the lighting diode when the lighting diode receives power and emits light; the indicating diode is connected between the controller and the negative electrode of the external power supply so as to receive a control signal from the controller; wherein when the accumulated lighting duration is equal to or greater than the rated lighting life, a control signal is sent out. According to the lighting device and the circuit, the service life condition of the lighting device can be effectively indicated to a user, so that potential safety risks of the lighting device are avoided, eyestrain of the user is avoided, and the sales volume of the lighting device is increased.

Description

Technical Field

[0001] The present disclosure relates to the field of lighting, and particularly to a lighting device and a circuit capable of indicating the lighting life. Background Art

[0002] Generally, the rated life of a lighting device (or an LED lamp) is between 10,000 hours and 50,000 hours. When the life is about to end, there are safety risks in the lighting device. First, the lumen (representing the total amount of light emitted by the light source) significantly decreases; second, there may be phenomena such as smoking or fire in the lighting device.

[0003] To solve the safety risks existing when the lighting device is about to end its life, the present disclosure proposes a lighting device and a circuit capable of indicating the lighting life. The lighting device and the circuit use a set LED lamp as a life indicator, and the life indicator gives a prompt when the lighting device reaches its rated life, so that the user can perform operations such as detecting, maintaining, or replacing the lighting device that has reached its rated life, to avoid potential safety risks of the lighting device, avoid causing eye fatigue to the user, and increase the sales volume of the lighting device.

[0004] Through the above design, the lighting device and the circuit of the present disclosure can effectively indicate the life situation of the lighting device to the user and help the user take timely measures. Summary of the Utility Model

[0005] In view of this, the present disclosure aims to propose an improved lighting device and a circuit, which can effectively indicate the lighting life situation of the lighting device to the user by the controller accumulating the lighting duration of the lighting diode and the indicating diode indicating that the accumulated lighting duration is equal to or greater than the rated lighting life, so as to avoid potential safety risks of the lighting device, avoid causing eye fatigue to the user, and increase the sales volume of the lighting device.

[0006] According to one aspect of the present disclosure, there is provided a lighting device capable of indicating the lighting life. The lighting device includes a lighting diode having a rated lighting life, and the lighting diode is connected to an external power supply to receive power from the external power supply and emit light; a controller connected to the lighting diode to accumulate the lighting duration of the lighting diode when the lighting diode receives power and emits light; an indicating diode connected between the controller and the negative pole of the external power supply to receive a control signal from the controller, and the control signal controls the conduction, turning off, or brightness change of the indicating diode; wherein the controller compares the rated lighting life of the lighting diode with the accumulated lighting duration, and when the accumulated lighting duration is equal to or greater than the rated lighting life, a control signal is issued.

[0007] In this way, by the controller accumulating the lighting duration of the lighting diode and by the indicating diode indicating that the accumulated lighting duration is equal to or greater than the rated lighting life, the present disclosure can simply and effectively indicate the life condition of the lighting diode by the indicating diode, so as to avoid potential safety risks of the lighting device, avoid causing eye fatigue of users and increase the sales volume of the lighting device.

[0008] According to an exemplary embodiment of the present disclosure, the lighting device further includes a MOS transistor, the source electrode of the MOS transistor is connected to the lighting diode, the gate electrode is connected to the controller, and the drain electrode is connected to the indicating diode to adjust the current flowing through the indicating diode.

[0009] In this way, the MOS transistor, as a current controller, can effectively adjust the brightness of the lighting diode to achieve the adjustment and control of the lighting effect; by adjusting the connection between the drain electrode and the indicating diode, precise control of the current of the indicating diode can be achieved to meet the brightness adjustment under different lighting requirements. However, the present disclosure can also use a triode to replace the MOS transistor.

[0010] According to an exemplary embodiment of the present disclosure, the lighting device further includes a bridge rectifier connected between the external power supply and the lighting diode, and the bridge rectifier rectifies the alternating current of the external power supply into direct current suitable for the lighting diode.

[0011] In this way, the bridge rectifier can convert the alternating current of the external power supply into direct current, which can eliminate the fluctuation of the current and ensure the stable operation of the lighting diode.

[0012] According to an exemplary embodiment of the present disclosure, the lighting device further includes a lighting power supply module connected between the positive electrode of the external power supply and the positive electrode of the lighting diode, and the lighting power supply module supplies power to the lighting diode.

[0013] According to an exemplary embodiment of the present disclosure, the lighting power supply module is a constant current source, so that the current flowing through the lighting diode is constant.

[0014] In this way, the lighting power supply module can effectively control the working current of the lighting diode, can provide a stable current output, and avoid the situation that the lamp works unstably or is damaged due to voltage fluctuation or other external factors.

[0015] According to an exemplary embodiment of the present disclosure, the controller is a microcontroller unit. When the accumulated lighting duration is equal to or greater than the rated lighting life, the state of the relevant port of the microcontroller unit changes to indicate that the indicating diode is turned on.

[0016] According to an exemplary embodiment of the present disclosure, the lighting device further includes a controller power supply module connected between the positive electrode of an external power supply and the controller. The controller power supply module converts the current from the external power supply to drive the controller.

[0017] In this way, the controller power supply module can convert the current from the external power supply into a current suitable for the controller, meeting different lighting needs of users and providing guarantee for a comfortable, energy-saving and safe lighting environment.

[0018] According to an exemplary embodiment of the present disclosure, the number of lighting diodes is one or more.

[0019] According to an exemplary embodiment of the present disclosure, when the number of lighting diodes is multiple, the multiple lighting diodes are connected in series or in parallel.

[0020] In this way, by connecting multiple lighting diodes in series or in parallel, the dimming and color mixing functions of the light can be realized, improving the flexibility and applicability of the light and meeting the lighting requirements of different scenarios and needs.

[0021] According to an exemplary embodiment of the present disclosure, the lighting diodes include red light diodes emitting red light, green light diodes emitting green light or blue light diodes emitting blue light.

[0022] In this way, the lighting diodes can emit various colors of light such as red, green and blue, and different colors of light can be mixed according to needs to achieve a rich and colorful lighting effect.

[0023] According to an exemplary embodiment of the present disclosure, the indicator diode is one indicator diode or multiple indicator diodes connected in series.

[0024] In this way, the indicator diode is a simple and effective component for indicating the circuit state. By changing its brightness or color, it can quickly judge whether the circuit is working properly; connecting multiple indicator diodes in series can achieve a more rich data display function. For example, by arranging multiple indicator diodes of different colors, different states or values can be displayed.

[0025] According to an exemplary embodiment of the present disclosure, the lighting device is a light bulb, the lighting diodes are located inside the bulb shell of the light bulb, and the indicator diodes are located at a position close to the bulb shell of the light bulb.

[0026] In this way, placing the lighting diodes inside the bulb shell can effectively improve the lighting effect, making the light more uniform and soft. In addition, this arrangement can also enhance the practicality and diversity of the light bulb.

[0027] According to an exemplary embodiment of the present disclosure, the lighting diode is located on a circuit board inside the bulb shell, and the indicating diode is located at the edge of the circuit board and close to the bulb shell.

[0028] According to an exemplary embodiment of the present disclosure, the part of the bulb shell close to the indicating diode is transparent so that the state of the indicating diode can be observed.

[0029] According to an exemplary embodiment of the present disclosure, the lighting diode is located on a circuit board inside the bulb shell, the indicating diode is located inside the insulating body of the bulb, and a part of the insulating body is transparent so that the state of the indicating diode can be observed.

[0030] According to an exemplary embodiment of the present disclosure, the controller is connected in parallel to the lighting diode, and the indicating diode is arranged on the parallel branch where the controller is located.

[0031] According to another aspect of the present disclosure, there is provided a circuit capable of indicating the lighting life, the circuit including a power supply and the above-mentioned lighting device.

[0032] In the embodiment of the present disclosure, there is provided a technical solution of accumulating the lighting duration of the lighting diode through the controller and indicating through the indicating diode that the accumulated lighting duration is equal to or greater than the rated lighting life, so as to at least solve the technical problem of the safety risk existing in the lighting device when the life is about to end in the prior art, and achieve the technical effects of simply and effectively indicating the lighting life, avoiding the potential safety risk of the lighting device, avoiding causing eye fatigue of users, and increasing the sales volume of the lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The illustrative embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0034] Figure 1 is a schematic diagram showing a circuit capable of indicating the lighting life according to an embodiment of the present disclosure;

[0035] Figure 2 is a schematic diagram showing a circuit capable of indicating the lighting life according to another embodiment of the present disclosure.

[0036] Figure 3 is a schematic diagram showing the structure with the lighting diode located inside the bulb.

[0037] REFERENCE SIGNS

[0038] 1: Lighting device;

[0039] 10: Lighting diode;

[0040] 20: Controller;

[0041] 30: Indicating diode;

[0042] 40: MOS transistor;

[0043] 50: Bridge rectifier;

[0044] 60: Lighting power supply module;

[0045] 70: Controller power supply module;

[0046] 80: Power supply;

[0047] 90: Bulb shell;

[0048] 100: Circuit board;

[0049] 110: Insulating body. Detailed implementation manners

[0050] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the embodiments of the present application. However, the present application can be implemented in many different forms and should not be construed as limited to the embodiments described herein. In the drawings, parts irrelevant to the description of the present application will be omitted for clarity. Similar reference numerals refer to similar elements throughout the description. In addition, when providing a description with reference to the accompanying drawings, although the elements are denoted by the same numerals, the reference numerals related to the elements may be changed, and the reference numerals are only described for convenience of description and should not be understood as limiting the concept, features, functions or effects of the elements.

[0051] In practical applications, when the cumulative lighting duration of a lighting device (or LED lamp) is equal to or greater than the rated lighting life, not only does the lumen decrease, but there may also be safety hazards such as smoking or fire, insufficient brightness causing user eye fatigue, and low sales volume of the lighting device.

[0052] Therefore, it is crucial to determine whether the lighting device has reached the rated lighting life and how to indicate that the rated lighting life has been reached.

[0053] For this purpose, the present disclosure proposes an improved lighting device and circuit capable of indicating the lighting life, which can control an indicating diode to give an indication when the cumulative lighting duration is equal to or greater than the rated lighting life, thereby facilitating the user to check, repair or replace the lighting device according to the indication.

[0054] Figure 1 is a schematic diagram showing a circuit capable of indicating the lighting life according to an embodiment of the present disclosure.

[0055] A circuit capable of indicating the lighting life includes a power supply 80 and a lighting device 1. The types of the power supply 80 may include renewable energy, mobile power supply, etc., and the present disclosure is not limited thereto. The voltage of the power supply 80 may be 220V, 380V, etc.

[0056] The lighting device 1 can be electrically connected to the power supply 80 through a wire. The lighting device 1 can also be wirelessly connected to the power supply 80.

[0057] The lighting device 1 includes a lighting diode 10, a controller 20, an indicating diode 30, a bridge rectifier 50, a lighting power supply module 60, and a controller power supply module 70.

[0058] The lighting diode 10 has a rated lighting life, for example, 10,000 hours to 50,000 hours, and the lighting diode is connected to an external power supply 80 to receive power from the external power supply 80 and emit light.

[0059] The lighting diode 10 can convert electrical energy into light energy. The lighting diode has the advantages of high efficiency, long life, low energy consumption, etc., and thus is widely used in the lighting field. Common lighting diodes include LEDs (light-emitting diodes), etc.

[0060] Generally, after the cumulative lighting duration of the lighting diode 10 reaches the rated lighting life, the lighting diode 10 can still continue to emit light, but the emitted light will weaken, and dangerous phenomena such as smoking or fire will occur.

[0061] The controller 20 is connected to the lighting diode 10 to accumulate the lighting duration of the lighting diode 10 when the lighting diode 10 receives power and emits light. For example, the controller 20 is connected in parallel to the lighting diode 10.

[0062] The controller 20 is, for example, a microcontroller unit MCU, including a processor, a memory, and an oscillator. After the controller 20 receives power, the oscillator generates a stable clock signal, the processor performs operations such as arithmetic and logical judgment according to the instructions in the program, and the memory is used to store program codes, data, and intermediate results. The processor, memory, and oscillator in the controller 20 work together to achieve the control function.

[0063] The indicating diode 30 is connected between the controller 20 and the negative pole of the external power supply 80 to receive a control signal from the controller 20, and the control signal controls the conduction, turning off, or brightness change of the indicating diode 30. For example, the indicating diode 30 is arranged on the parallel branch where the controller 20 is located.

[0064] The indicating diode 30 is a simple and effective component for displaying the circuit state, and by changing its brightness or color, it can quickly determine whether the circuit is working properly.

[0065] For example, in the initial state, the indicating diode 30 is in the conducting state and emits light. The controller 20 compares the rated lighting life of the lighting diode 10 with the accumulated lighting duration, and when the accumulated lighting duration is equal to or greater than the rated lighting life, the controller 20 sends a control signal to the indicating diode 30. The control signal controls the indicating diode 30 to turn off, so that the current life situation of the lighting diode is indicated to the user by the turning-off of the indicating diode 30.

[0066] For example, in the initial state, the indicating diode 30 is in the off state and does not emit light. The controller 20 compares the rated lighting life of the lighting diode 10 with the accumulated lighting duration, and when the accumulated lighting duration is equal to or greater than the rated lighting life, the controller 20 sends a control signal to the indicating diode 30. The control signal controls the indicating diode 30 to conduct and emit light, so that the current life situation of the lighting diode is indicated to the user by the conduction of the indicating diode 30.

[0067] For example, in the initial state, the indicating diode 30 is in the conducting state and emits light. The controller 20 compares the rated lighting life of the lighting diode 10 with the accumulated lighting duration, and when the accumulated lighting duration is equal to or greater than the rated lighting life, the controller 20 sends a control signal to the indicating diode 30. The control signal controls the brightness change of the indicating diode 30, so that the current life situation of the lighting diode is indicated to the user by the brightness change of the indicating diode 30.

[0068] Figure 2 FIG. is a schematic diagram showing a circuit capable of indicating lighting life according to another embodiment of the present disclosure.

[0069] Different from Figure 1 the embodiment shown, in Figure 2 , the lighting device 1 further includes an MOS transistor 40. The source electrode of the MOS transistor is connected to the lighting diode 10, the gate electrode is connected to the controller 20, and the drain electrode is connected to the indicating diode 30 to adjust the current flowing through the indicating diode 30.

[0070] As a current controller, the MOS transistor can effectively adjust the brightness of the lighting diode 30, realizing the adjustment and control of the lighting effect; by adjusting the connection between the drain electrode and the indicating diode 30, precise control of the current of the indicating diode 30 can be achieved, meeting the brightness adjustment under different lighting requirements.

[0071] For example, compared with Figure 1 the situation where the controller 20 shown directly supplies power to the indicating diode 30, after adopting the MOS transistor, the current supplied to the indicating diode 30 increases, and the brightness of the indicating diode 30 for emitting light increases, thereby enhancing the indicating effect.

[0072] The present disclosure may also use a triode to replace the above MOS transistor, and the present disclosure is not limited thereto.

[0073] In Figure 1 the illustrated embodiment or Figure 2 in the illustrated embodiment, the lighting device 1 further includes a bridge rectifier 50 connected between an external power supply 80 and the lighting diode. The bridge rectifier 50 rectifies the alternating current of the external power supply 80 into direct current suitable for the lighting diode 10.

[0074] The bridge rectifier 50 is composed of four diodes. It can not only rectify the alternating current into direct current suitable for the lighting diode 10, but also eliminate the fluctuations in the current to ensure the stable operation of the lighting diode 10.

[0075] The lighting device 1 further includes a lighting power supply module 60 connected between the positive pole of the external power supply 80 and the positive pole of the lighting diode 10. The lighting power supply module 60 can, for example, act as a constant current source to make the current flowing through the lighting diode 10 constant, avoiding the situation that the lamp works unstably or is damaged due to voltage fluctuations or other external factors.

[0076] The lighting device 1 further includes a controller power supply module 70 connected between the positive pole of the external power supply 80 and the controller 20. The controller power supply module 70 converts the current from the external power supply 80 to drive the controller 20, meeting different lighting needs of users and providing guarantee for a comfortable, energy-saving and safe lighting environment.

[0077] In the present disclosure, the number of lighting diodes 10 is one or more; when the number of lighting diodes 10 is multiple, the multiple lighting diodes 10 are connected in series or in parallel.

[0078] By connecting multiple lighting diodes 10 in series or in parallel, the present disclosure can achieve the functions of dimming and color mixing of the light, improving the flexibility and applicability of the light and meeting the lighting requirements of different scenarios and needs.

[0079] In the present disclosure, the lighting diode 10 includes a red light diode emitting red light, a green light diode emitting green light or a blue light diode emitting blue light.

[0080] The lighting diode 10 can emit various colors of light such as red, green and blue, and can mix different colors of light as needed to achieve a rich and colorful lighting effect.

[0081] In the present disclosure, the indicating diode 30 is one indicating diode or multiple indicating diodes connected in series.

[0082] The present disclosure can quickly determine the working condition of the circuit by changing the brightness or color of the indicating diode 30; connecting multiple indicating diodes 30 in series can achieve a richer data display function. For example, by arranging multiple indicating diodes 30 of different colors, different states or values can be displayed, and different states or values can further refine the life condition of the lighting diode 10.

[0083] In addition, as Figure 3 shown, the lighting device can be a light bulb, the lighting diode 10 is located inside the bulb shell 90 of the light bulb, and the indicating diode 30 is located at a position close to the bulb shell 90 of the light bulb. Specifically, the lighting diode 10 is located on the circuit board 100 inside the bulb shell 90, and the indicating diode 30 is located at the edge of the circuit board 100 and close to the bulb shell 90. Multiple diodes are placed on the circuit board 100, one of which is set as the indicating diode 30, and the rest are lighting diodes 10. The part of the bulb shell 90 close to the indicating diode 30 is transparent so that the state of the indicating diode 30 can be observed. For example, a worker can directly see whether the indicating diode 30 is lit from the outside of the light bulb.

[0084] As another example, the lighting diode 10 is located on the circuit board 100 inside the bulb shell, the indicating diode 30 is located inside the insulating body 110 of the light bulb, and a part of the insulating body 110 is transparent so that the state of the indicating diode 30 can be observed.

[0085] If the lighting diode 10 fails to work properly due to a fault, the indicating diode 30 will also light up to play a role in indicating to the user.

[0086] The present disclosure can, without the need to rely on an additional device, only through the structure of the lamp itself, prompt the user of the safety risk existing when the lamp is about to end its life, and avoid causing eye fatigue to the user.

[0087] In the embodiments of the present disclosure, there are provided technical solutions for accumulating the lighting duration of the lighting diode by a controller and indicating by the indicating diode that the accumulated lighting duration is equal to or greater than the rated lighting life, so as to at least solve the technical problem of the safety risk existing when the lighting device is about to end its life in the prior art, and achieve the technical effects of simply and effectively indicating the lighting life, avoiding potential safety risks of the lighting device, avoiding causing eye fatigue to the user, and increasing the sales volume of the lighting device.

[0088] In the above embodiments of the present disclosure, the descriptions of the respective embodiments have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0089] In several embodiments provided by the present disclosure, it should be understood that the disclosed technical content can be implemented in other ways.

[0090] The above are only the preferred embodiments of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present disclosure, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present disclosure.

Claims

1. A lighting device (1) capable of indicating the lighting life, characterized in that, The lighting device includes: A lighting diode (10) having a rated lighting life, and the lighting diode is connected to an external power supply to receive power from the external power supply and emit light; A controller (20) connected to the lighting diode to accumulate the lighting duration of the lighting diode when the lighting diode receives power and emits light; An indicating diode (30) connected between the controller and the negative pole of the external power supply to receive a control signal from the controller, and the control signal controls the conduction, cutoff or brightness change of the indicating diode; Wherein, the controller compares the rated lighting life of the lighting diode with the accumulated lighting duration, and when the accumulated lighting duration is equal to or greater than the rated lighting life, issues the control signal.

2. The lighting device according to claim 1, characterized in that, The lighting device further includes a MOS transistor (40), the source electrode of the MOS transistor is connected to the lighting diode, the gate electrode is connected to the controller, and the drain electrode is connected to the indicating diode to adjust the current flowing through the indicating diode.

3. The lighting device according to claim 1 or 2, characterized in that, The lighting device further includes a bridge rectifier (50) connected between the external power supply and the lighting diode, and the bridge rectifier rectifies the alternating current of the external power supply into direct current suitable for the lighting diode.

4. The lighting device according to claim 1 or 2, characterized in that, The lighting device further includes a lighting power supply module (60) connected between the positive pole of the external power supply and the positive pole of the lighting diode, and the lighting power supply module supplies power to the lighting diode.

5. The lighting device according to claim 4, characterized in that, The lighting power supply module is a constant current source, so that the current flowing through the lighting diode is constant.

6. The lighting device according to claim 1 or 2, characterized in that, The controller (20) is a microcontroller unit. When the accumulated lighting duration is equal to or greater than the rated lighting life, the state of the relevant port of the microcontroller unit changes to indicate that the indicating diode is conducting.

7. The lighting device according to claim 1 or 2, characterized in that, The lighting device further includes a controller power supply module (70) connected between the positive pole of the external power supply and the controller, and the controller power supply module converts the current from the external power supply to drive the controller.

8. The lighting device according to claim 1 or 2, characterized in that, The number of the lighting diodes is one or more.

9. The lighting device according to claim 8, characterized in that, When the number of the lighting diodes is multiple, the multiple lighting diodes are connected in series or in parallel.

10. The lighting device according to claim 1 or 2, characterized in that, The lighting diode includes a red light diode emitting red light, a green light diode emitting green light or a blue light diode emitting blue light.

11. The lighting device according to claim 1 or 2, characterized in that, The indicating diode is one indicating diode or multiple indicating diodes connected in series.

12. The lighting device according to claim 1 or 2, characterized in that, The lighting device is a light bulb, the lighting diode is located inside the bulb shell (90) of the light bulb, and the indicating diode is located at a position close to the bulb shell of the light bulb.

13. The lighting device according to claim 12, characterized in that, The lighting diode is located on a circuit board (100) inside the bulb shell, and the indicating diode is located at the edge of the circuit board and close to the bulb shell.

14. The lighting device according to claim 13, characterized in that, The part of the bulb shell close to the indicating diode is transparent so that the state of the indicating diode can be observed.

15. The lighting device according to claim 12, characterized in that, The lighting diode is located on a circuit board (100) within the bulb shell, the indicating diode is located inside an insulating body (110) of the bulb, and a part of the insulating body is transparent so that the state of the indicating diode can be observed.

16. The lighting device according to claim 1, characterized in that, The controller is connected in parallel to the lighting diode, and the indicating diode is arranged on the parallel branch where the controller is located.

17. A circuit capable of indicating the lighting life, characterized in that, The circuit includes: a power supply (80); and a lighting device (1) according to any one of claims 1 to 16.

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