WO2015013938A1 - Led light-emitting device - Google Patents

Abstract

An LED light-emitting device (100, 200) comprises an LED light-emitting element (10), a control module (20, 220) and a luminance line (30, 230). The control module (20, 220) is connected between a circuit switch and the luminance line (30, 230), and is used for recording the number of turning on times and the turn on time of the circuit switch and input parameters of the luminance line (30, 230), and controls the luminance line (30, 230) according to the recorded number of turning on times, the turn on time and the input parameters. The luminance line (30, 230) is connected betweent he LED light-emitting element (10) and the control module (20, 220), and adjusts the luminance of the LED light-emitting element (10) according to control of the control module (20, 220). Without changing the originally used circuit, the LED light-emitting device can adjusts the luminance of the LED light-emitting element by adding a control module and a luminance line in the LED light-emitting element, thereby being beneficial to energy conservation and being convenient for a user to use.

Description

 LED light emitting device Instruction manual

 LED light emitting device

 [Technical Field]

 The present invention relates to the field of illumination, and in particular to an illumination device in which an LED (Light Emitting Diode) is a light source.

 【Background technique】

 led As the most promising lighting product, lighting source has been receiving attention from all quarters, and has been continuously investing in research and development, and has continuously developed more new products with distinctive features.

 Currently, LED Lighting applications are extremely broad, and LED lighting chips are widely used in both public and residential homes, both for large outdoor lighting and for display rear projection products. LED used as lighting The illuminating device is adapted to use the button switch, that is, through a single-pole double-throw switch, press the circuit to turn on the illumination, press again, disconnect the circuit, and turn off the illumination. This kind of LED The most obvious flaw in lighting is the inability to adjust the brightness of this LED. When the lamp is in use, there is only one kind of brightness, and the illumination intensity and the brightness of the illumination cannot be adjusted according to actual needs. In everyday life, the use of indoor lighting, especially in indoor homes, requires different lighting in different scenarios, such as reading or writing, in a light-filled and bright environment. In this case, the illumination needs to be brighter; if it is active before going to sleep, it needs soft and weak light, only need to be able to view the low illumination, in this case, neither need nor hope too much illumination. Strong. However, existing LED lighting device brightness can not be adjusted, which has the following shortcomings: First, it will bring inconvenience to people's life; Second, it may need to install different intensity of lighting, resulting in waste of financial resources; Third, there is a problem of wasted energy.

 [Summary of the Invention]

 The invention provides an LED light-emitting device, which can adjust the brightness of the LED light-emitting element by daily switching, without changing the original line Under the premise of the circuit, the illumination intensity of the illuminating device can be adjusted only by the push button switch.

 The invention provides an LED lighting device, including an LED a light-emitting element, a control module, and a brightness line, the control module is connected between the circuit switch and the brightness line, wherein the control module is configured to record the number of times the circuit switch is turned on, the turn-on time, and the output parameter of the brightness line, and according to The number of times the circuit switch is turned on, the turn-on time, and an output parameter of the brightness line to control the brightness line; the brightness line is connected Between the LED lighting component and the control module, the brightness line adjusts the brightness of the LED lighting component according to the control of the control module.

 The luminance line includes a voltage dividing resistor in parallel with the LED lighting element and a current limiting resistor in series with the LED lighting element.

The control module includes a timer, a memory and a controller connected to the controller, the timer starts counting when the circuit switch is turned on, and transmits a result record to the controller, the memory recording circuit The number of times the switch is opened and closed, and the record is transmitted to the controller, and the controller reacts according to the setting to control the brightness line.

 The output parameter of the brightness line is a resistance value, a voltage value or a current value.

 The control module adjusts the LED by controlling the magnitude or current of the brightness line loaded on the LED lighting element. The brightness of the light-emitting element.

 The LED lighting element, control module and brightness line are packaged together to form an LED light.

 The LED light-emitting elements constitute a light string.

The LED lighting device is controlled as follows: when the circuit switch is first turned on, it is recorded as t ₀ , and the timer of the control module starts to record the starting time of the circuit switch opening. The number of memory records opened by the control module is '1', and the adjustment of the brightness line is controlled according to this condition, and the resistance of the voltage dividing resistor of the brightness line is changed, so that the voltage applied to the LED light-emitting element is gradually increased, and Raising to the highest voltage within a predetermined time T ₁ ;

The point in time when the circuit switch is first turned off is recorded as t ₁ . If the time relationship between the first closing time of the circuit switch and the first opening satisfies t ₁ - t ₀ < T ₁ , the memory recording circuit switch of the control module switches off the time t _{1 for} the first time and the voltage when the brightness line is turned off. If the relationship between the first closing time of the circuit switch and the first opening time satisfies t ₁ - t ₀ ≥ T ₁ , the number of times the last circuit switch recorded in the memory is turned on is cleared; of course, the control module can also be set. Record the voltage at the time of shutdown and the time of shutdown;

When the circuit switch is turned on for the second time, it is recorded as t ₂ . If the relationship between the second opening time of the circuit switch and the first closing time satisfies t ₂ -t ₁ < T ₂ , T ₂ is the second preset time, then The second opening is effective, and the control module controls the voltage on the LED light-emitting component to be the voltage when the first time t ₁ is turned off; if the second opening time of the circuit switch and the first closing time satisfy the t ₂ -t ₁ ≥ T ₂ , the memory of the control module is automatically cleared, and the number of open records opened this time is '1'. According to this condition and control circuit adjust the brightness, the resistance changes in luminance dividing resistor circuit such that the voltage loaded on the LED light emitting element gradually increases and rise within _a first predetermined time T at the highest voltage.

The size of T ₁ is 0.5 to 5 seconds, and the size of T ₂ is 0 to 10 seconds.

The size of T ₁ is 1 to 3 seconds, and the size of T ₂ is 0.5 to 5 seconds.

 The LED light-emitting device of the invention can pass through the LED without changing the original used circuit The control module and the brightness line are added to the light-emitting element to adjust the LED by the number and time of opening and closing the existing circuit switch. The brightness of the light-emitting element, the control module performs timing and judgment according to the set time, records the time when the circuit switch is turned on or off, and controls the brightness line according to the judgment result to adjust the LED Light-emitting element. Allow users to adjust LEDs according to their needs The brightness of the light is therefore beneficial to energy saving and user-friendly use, and it is easy to carry out engineering transformation by simple replacement in the existing circuit, and is convenient and simple to implement.

 [Description of the Drawings]

 1 is a block diagram of an LED lighting apparatus according to Embodiment 1 of the present invention;

 Figure 2 is a block diagram of an LED lighting device of Embodiment 2 of the present invention;

 Fig. 3 is a flow chart showing the control of the LED lighting apparatus of the first embodiment of the present invention.

 Of which: 100, 200, LED lighting device; 10, LED lighting components; 20, 220 , control module; 21, 221, timer; 22, 222, memory; 23, 223, controller; 30, 230, brightness line; 31, 231 , voltage divider resistor; 32, 232, current limiting resistor; 210, light string.

 【detailed description】

 The LED light-emitting device of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

 Embodiment 1 : As shown in FIG. 1 , an LED lighting device 100 is shown, including an LED lighting component 10 and a control module. 20 and the brightness line 30, the control module 20 is connected between the circuit switch and the brightness line 30, and the control module 20 is used to record the number of times the circuit switch is turned on, the on time and the brightness line 30. The output parameter is controlled according to the number of times the circuit switch is turned on and the turn-on time; the brightness line 30 is connected between the LED light-emitting element 10 and the control module 20, the brightness line 30 adjusts the brightness of the LED lighting element 10 according to the control of the control module 20. In detail, the output parameter of the brightness line 30 can be a resistance value, a voltage value or a current value; the control module 20 The brightness of the LED lighting element 10 can be adjusted by controlling the magnitude of the current or voltage applied to the LED lighting element 10 by the brightness line 30. It can be understood that the LED light-emitting element 10 The control module 20 and the brightness line 30 can be packaged together to form an LED.

 Specifically, in the embodiment, the brightness line 30 may include a voltage dividing resistor 31 and a parallel with the LED light emitting element 10 A current limiting resistor 32 in series with the LED light emitting element. The control module 20 can include a timer 21, a memory 22, and a controller 23, the timer 21 and the memory 22 Connected to the controller 23, the timer 21 starts timing when the circuit switch is turned on, and transmits the result record to the controller 23, which records the number of circuit switch opening and closing times and transmits the record to the controller. 23, the controller 23 reacts according to the setting and controls the brightness line 30.

 The control module 20 records the turn-on time of the circuit switch through the timer 21 and passes through the memory 22 The number of times the circuit switch is turned on, the recording result of the timer 21 and the memory 22 are transmitted to the controller 23, and by comparison, the control result for the luminance line 30 is obtained, and the luminance line 30 is obtained. The voltage dividing resistor 31 is controlled to adjust the brightness of the LED light-emitting element 10, and the control flow chart is shown in Fig. 3. The whole process is as follows:

When the circuit switch is first turned on, it is recorded as t ₀ , and the timer of the control module starts to record the starting time of the circuit switch open. The number of memory records opened by the control module is '1', and the adjustment of the brightness line is controlled according to this condition, and the resistance of the voltage dividing resistor of the brightness line is changed, so that the voltage applied to the LED light-emitting element is gradually increased, and It rose to the highest voltage within a preset time ₁ T.

The point in time when the circuit switch is first turned off is recorded as t ₁ . If the time relationship between the first closing time of the circuit switch and the first opening satisfies t ₁ - t ₀ < T ₁ , the memory recording circuit switch of the control module switches off the time t _{1 for} the first time and the voltage when the brightness line is turned off. If the relationship between the first closing time of the circuit switch and the first opening time satisfies t ₁ - t ₀ ≥ T ₁ , the number of times the last circuit switch recorded in the memory is turned on is cleared; of course, the control module can also be set. Record the voltage at shutdown and the time it was turned off.

When the circuit switch is turned on for the second time, it is recorded as t ₂ . If the relationship between the second opening time of the circuit switch and the first closing time satisfies t ₂ -t ₁ < T ₂ (T ₂ is the second preset time), The second time is valid, the control module controls the brightness line to load the voltage on the LED light-emitting element to be the voltage when the first time t ₁ is turned off; if the second opening time of the circuit switch and the first closing time relationship satisfy t ₂ - When t ₁ ≥ T ₂ , the memory of the control module is automatically cleared, and the number of open records opened this time is '1'. According to this condition and adjust the brightness control circuit, the resistance of the dividing resistor to change the brightness of the line, so that the voltage loaded on the LED light emitting element gradually increases and rise within _a first predetermined time T at the highest voltage. In the third and subsequent circuit switches, the steps of the second circuit switch being turned on may be repeated.

The first preset time T ₁ is a time required for the voltage applied to the LED light-emitting element to decrease from a minimum value to a maximum value, and the size of T ₁ may be 0.5 to 5 seconds, preferably 1 to 3 seconds; The second preset time T ₂ is the maximum duration of the control module capable of recording the voltage state of the last off time, and the magnitude of T ₂ may be 0 to 10 seconds, preferably 0.5 to 5 seconds. When the size of T ₁ is 1~3 seconds and the size of T ₂ is 0.5~5 seconds, the LED light-emitting device can be made

 Embodiment 2, as shown in FIG. 2, shows a group of LED lighting devices 200 having LED strings, including a plurality of LEDs The lamp string 210 formed by the lamps in series is provided with a circuit switch in the string circuit, and a control module 220 is connected between the circuit switch and the lamp string. The control module 220 includes a timer 221 and a memory 222. And a controller 223, the timer 221 and the memory 222 are connected to the controller 223, the timer 221 is timed from the circuit switch on time, and the result record is transmitted to the controller 223. The memory 222 records the number of circuit switch opening and closing times, and transmits the record to the controller 223, which performs a reaction control brightness line 230 according to the setting. Light string 210 can be made up of several LED light-emitting components. The brightness line 230 includes a current limiting resistor 232 and a voltage dividing resistor 231. In the preferred embodiment, one end of the string is connected to the finite current resistor R1, and the string 210 includes Three LED illuminators, D1, D2, and D3, respectively, have a voltage divider resistor in parallel with D1 and D2, which are R2 and R3. Where R1 resistance is 120 Ω, R2 has a resistance of 470 Ω and R3 has a resistance of 2KΩ. If the resistor R2 and the resistor R3 are not connected in parallel on D1 and D2, the adjustment range of the input power unit is 9-12V, when the resistor R2 and the resistor R3 are respectively connected in parallel on D1 and D2, the adjustable range of the input power unit 102 of the string 101 is 3-12V. At the same time, a smoother and larger proportion of light and dark contrast can be obtained.

 The LED light-emitting device of the invention can pass through the LED without changing the original used circuit The control module and the brightness line are added to the light-emitting element to adjust the LED by the number and time of opening and closing the existing circuit switch. The brightness of the light-emitting element, the control module performs timing and judgment according to the set time, records the time when the circuit switch is turned on or off, and adjusts the brightness line according to the judgment structure to adjust the LED Light-emitting element. Allow users to adjust LEDs according to their needs The brightness of the light is therefore advantageous for energy saving and user-friendly use, and it is easy to carry out the modification work in the existing circuit, and the realization is convenient.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention is disclosed by the preferred embodiments thereof, it is not intended to limit the invention, and any skilled person skilled in the art. The present invention may be modified or modified to be equivalent to equivalent embodiments without departing from the technical scope of the present invention, without departing from the technical scope of the present invention. Any simple modifications, equivalent changes and modifications made by the above embodiments are within the scope of the technical solutions of the present invention.

Claims (1)

1. An LED lighting device characterized by comprising an LED a light-emitting element, a control module, and a brightness line, the control module is connected between the circuit switch and the brightness line, wherein the control module is configured to record the number of times the circuit switch is turned on, the turn-on time, and the output parameter of the brightness line, and according to The number of times the circuit switch is turned on, the turn-on time, and an output parameter of the brightness line to control the brightness line; the brightness line is connected Between the LED lighting component and the control module, the brightness line adjusts the brightness of the LED lighting component according to the control of the control module. 2. The LED lighting device of claim 1 wherein the brightness line comprises a voltage dividing resistor in parallel with the LED lighting element and a A current limiting resistor in series with the LED illuminating element. 3. The LED according to claim 1 The illuminating device is characterized in that the control module comprises a timer, a memory and a controller, the timer and the memory are connected to the controller, the timer starts counting when the circuit switch is turned on, and transmits the result record to the controller The controller records the number of times the circuit switch is turned on and off, and transmits the record to the controller, and the controller reacts according to the setting to control the brightness line. 4. The LED according to claim 1 The illuminating device is characterized in that the output parameter of the brightness line is a resistance value, a voltage value or a current value. 5. The LED lighting device of claim 1, wherein the control module is loaded on the LED by controlling a brightness line The current or voltage on the illuminating element adjusts the brightness of the LED illuminating element. 6. The LED lighting device of claim 1 wherein the LED The illuminating element, the control module and the brightness line are packaged together to form an LED lamp. 7. The LED lighting device of claim 1, wherein the LED lighting element constitutes a light string. 8. The LED lighting device according to claim 1, wherein the control method is as follows: When the circuit switch is first turned on, it is recorded as t ₀ , and the timer of the control module starts to record the starting time of the circuit switch open. The number of memory records opened by the control module is '1', and the adjustment of the brightness line is controlled according to this condition, and the resistance of the voltage dividing resistor of the brightness line is changed, so that the voltage applied to the LED light-emitting element is gradually increased, and It rose to the highest voltage within a preset time ₁ T. The point in time when the circuit switch is first turned off is recorded as t ₁ . If the relationship between the first closing time of the circuit switch and the first opening time satisfies t ₁ - t ₀ < T ₁ , the memory recording circuit switch of the control module switches off the time t _{1 for} the first time and the voltage when the brightness line is turned off. If the relationship between the first closing time of the circuit switch and the first opening time satisfies t ₁ - t ₀ ≥ T ₁ , the number of times the last circuit switch recorded in the memory is turned on is cleared; of course, the control module can also be set. Record the voltage at shutdown and the time it was turned off. When the circuit switch is turned on for the second time, it is recorded as t ₂ . If the relationship between the second opening time of the circuit switch and the first closing time satisfies t ₂ -t ₁ < T ₂ , T ₂ is the second preset time, then The second opening is effective, and the control module controls the voltage on the LED light-emitting component to be the voltage when the first time t ₁ is turned off; if the second opening time of the circuit switch and the first closing time satisfy the t ₂ -t ₁ ≥ T ₂ , the memory of the control module is automatically cleared, and the number of open records opened this time is '1'. According to this condition and adjust the brightness control circuit, the resistance of the dividing resistor to change the brightness of the line, so that the voltage loaded on the LED light emitting element gradually increases and rise within _a first predetermined time T at the highest voltage. 9. The control method of claim 8 LED light emitting device, characterized wherein, T is _a size of 0.5 to 5 seconds, T 0 is the size of ₂ to 10 seconds. 10. The control method of claim 9 LED light emitting device, characterized wherein, T is a size of ₁ to 3 seconds, T ₂ is the size of 0.5 to 5 seconds.

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