CN214125568U - LED lamp - Google Patents
LED lamp Download PDFInfo
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- CN214125568U CN214125568U CN202023335023.8U CN202023335023U CN214125568U CN 214125568 U CN214125568 U CN 214125568U CN 202023335023 U CN202023335023 U CN 202023335023U CN 214125568 U CN214125568 U CN 214125568U
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Abstract
The application relates to the technical field of lighting equipment, and provides an LED lamp which comprises a dimmer, a first LED module, a second LED module, a first LED power supply and a second LED power supply; the first LED module is connected with the first LED power supply, and the second LED module is connected with the second LED power supply; the first LED power supply and the second LED power supply are connected in parallel to a mains supply and are connected in parallel with the dimmer. The LED lamp provided by the application utilizes the series circuit and the dimmer to improve the light emitting uniformity of the lamp, and can obtain a better lighting effect.
Description
Technical Field
The application relates to the field of lighting equipment, in particular to an LED lamp.
Background
The traditional LED line lamp or wall washer lamp generally adopts a constant voltage source, a plurality of LED lamps are connected in parallel in a circuit, a DC-DC constant current module can be adopted in the LED lamps to supply power, or each LED lamp can be internally provided with an AC-DC constant current power supply.
However, due to the internal resistance in the wire, the actual operating current is still different even though the resistance and voltage of each LED lamp in the parallel circuit are the same. Therefore, the actual output power of each LED lamp is different, and the different output powers show that the brightness of the lamp is different, so that when the influence of the internal resistance on the brightness of the lamp cannot be ignored, the brightness of the whole linear lamp is not uniform, and the use experience is influenced.
In some large places, the LED lamps need to be arranged in parallel for a long distance, and the tail end of a circuit may cause poor constant current effect and uneven brightness of the lamps due to pressure difference. The traditional LED line lamp is inconvenient to adjust the brightness, so that some supplementary lamps can be added, and the light-emitting uniformity is more difficult to ensure.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems or at least partially solve the above technical problems, an LED lamp is provided herein, including:
the LED driving circuit comprises a dimmer, a first LED module, a second LED module, a first LED power supply and a second LED power supply;
the first LED module is connected with the first LED power supply, and the second LED module is connected with the second LED power supply;
the first LED power supply and the second LED power supply are connected in parallel to a mains supply and are connected in parallel with the dimmer.
Optionally, the power rating of the first LED power supply matches the power rating of the first LED module.
Optionally, the rated power of the second LED power supply is greater than the rated power of the second LED module, and the dimmer is configured to adjust the actual output power of the second LED power supply to the rated power of the second LED module.
Optionally, the first LED module comprises a plurality of LED lighting units.
Alternatively, the respective LED light emitting units are connected in series.
Optionally, the second LED module comprises a plurality of LED lighting units.
Optionally, the LED light emitting units of the first LED module and the second LED module are uniformly distributed in a staggered manner.
Optionally, the LED lamp is a line lamp, and the LED light emitting units are arranged along a length direction of the line lamp.
Optionally, the number ratio of the LED light emitting units of the first LED module and the second LED module is in the range of 1:1 to 1: 3.
Optionally, the number ratio of the LED light emitting units of the first LED module and the second LED module is 1: 2.
Compared with the prior art, the LED lamp has the advantages that the output of the power supply can be adjusted through the light modulator, so that the output power of the LED light-emitting units at different positions is the same, the light-emitting brightness is kept consistent, the light-emitting uniformity of the LED lamp can be improved, and the lighting effect is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be clear that the drawings in the following description are only intended to illustrate some embodiments of the present application, and that for a person skilled in the art, it is possible to derive from these drawings, without inventive effort, technical features, connections or even method steps not mentioned in the other drawings.
Fig. 1 is a block diagram of an LED lamp according to an embodiment of the present disclosure.
Description of the reference numerals
1-a dimmer; 2-a first LED module; 3-a second LED module; 4-a first LED power supply; 5-a second LED power supply; 6-LED lighting unit.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The inventor of the invention finds that in the prior art, the LED lamps need to be arranged in parallel for a long distance, and the tail end of a circuit may cause poor constant current effect and uneven brightness of the lamps due to pressure difference, so that the lighting effect of the lamps is influenced. Moreover, the constant voltage source in the prior art is mostly 24V or 48V, and the low voltage makes the proportion of electric energy consumed on the transmission line larger, resulting in larger line loss, further affecting the uniformity of illumination.
In order to solve the above problems or at least partially solve the above technical problems, the present application provides an LED lamp, as shown in fig. 1, including a dimmer 1, a first LED module 2, a second LED module 3, a first LED power source 4, and a second LED power source 5; the first LED module 2 is connected with a first LED power supply 4, and the second LED module 3 is connected with a second LED power supply 5; the first LED power supply 4 and the second LED power supply 5 are connected in parallel to the mains supply and are connected in parallel with the dimmer 1.
A Dimmer (Dimmer) is an electrical device that adjusts the level of illumination by reducing or increasing the RMS voltage to change the luminous flux of the light source in the lighting device, causing the average power of the lamp light to produce light output of different intensities, thereby adjusting the different intensities of the lamp light.
In the present application, the first LED module 2 and the second LED module 3 may include a plurality of LED light emitting units 6 to ensure the illumination brightness of the LED lamp. The LED lighting unit 6 may be a single LED lamp bead in the prior art, or a combination of a plurality of LED lamp beads.
The power supply is connected in series with the LED modules so that the first LED module 2 and the second LED module 3 have the same current. Compared with the prior art, the output of the power supply can be adjusted through the dimmer 1, so that the output power of each LED light-emitting unit 6 of the first LED module 2 and the second LED module 3 is the same, the light-emitting brightness is consistent, the light-emitting uniformity of the LED lamp can be improved, and the lighting effect is guaranteed.
In the present application, the LED lighting units 6 may be connected in series, and the current of the series circuit is equal everywhere, so the internal resistance of the wire does not affect the output power of the LED lighting units 6. The output of the power supply is adjusted through the dimmer 1, so that the same output power and consistent brightness of the LED light-emitting units 6 at all positions can be ensured, and the illumination brightness of the LED lamp is more uniform.
It can be understood that when the LED lamp such as a line lamp or a wall washer is arranged in a long distance, there are corner positions, and the actual wiring is restricted by the field length, so the number of the LED light emitting units 6 arranged in the second LED module 3 may be less than that of the first LED module 2.
For this purpose, the power rating of the first LED power supply 4 may be matched to the power rating of the first LED module 2, so that the first LED module 2 can operate at the power rating. Whereas the power rating of the second LED power supply 5 may be larger than the power rating of the second LED module 3, the dimmer 1 can be used to adjust the actual output power of the second LED power supply 5 to the power rating of the second LED module 3.
When the output powers of the respective LED light emitting units 6 are equal, the light emitting luminance is uniform. As a possible embodiment, the present application may use the same type of LED lighting unit 6, and the output power of each LED lighting unit 6 is equal to the rated power.
For example, if the first LED power source 4 and the second LED power source 5 are rated at 50W, the LED lighting unit 6 is rated at 10W. Each LED power supply can be connected in series with a plurality of LED lighting units 6 according to rated power, and at this time, the first LED module 2 can set up 5 LED lighting units 6 at most, and the second LED module 3 can set up 3 LED lighting units 6 at most.
Assuming that the power supply voltage is 50V, each LED lighting unit 6 can be divided into 10V, and when the current reaches 1A, the LED lighting unit 6 can emit light with rated power. Since the number of LED lighting units 6 of the second LED module 3 is small, the total resistance is small and the current is large when the supply voltage is the same.
The dimmer 1 can adjust the voltage of the second LED power supply 5 to be equal to 30V, the current can be reduced to 1A, and the actual output power of each LED lighting unit 6 is 10W. That is to say, the dimmer 1 of the present application can adjust the actual output power of the second LED power supply 5 to the rated power (i.e. 30W) of the second LED module 3, thereby ensuring that the light-emitting brightness of the LED light-emitting units 6 at different positions is consistent.
Of course, different models of LED lighting units 6 can be used, and the object of the present application can still be achieved by adjusting the dimmer 1.
Further, the LED light emitting units 6 of the first LED module 2 and the second LED module 3 may be uniformly staggered in the present application. Because the LED light-emitting units 6 of different LED modules are uniformly distributed in a staggered manner, the illumination intensity of light can be superposed in a short distance, so that an obvious bright part or dark part does not exist, the light of the lamp is more uniform, and the lamp has a better lighting effect.
It can be understood that the whole light-emitting brightness of the lamp can be adjusted in a grading way by controlling the on-off of the power supply. Specifically, there may be three possible usage modes: 1. only the first LED module 2 is controlled to work; 2. only the second LED module 3 is controlled to work; 3. and simultaneously controlling the first LED module 2 and the second LED module 3 to work.
The LED light-emitting unit 6 can emit light at a rated power in both the use mode 1 and the use mode 2. The dimmer 1 can adjust the actual output power of the first LED power supply 4 and the second LED power supply 5, so that the actual output power of part of the LED light-emitting units 6 can be smaller than the rated power, thereby obtaining a two-stage illumination brightness adjustment. When the first LED module 2 and the second LED module 3 are operated simultaneously, the luminaire can obtain a brighter lighting effect. Therefore, the bright lighting effect can be obtained by using the mode 3, the dark lighting effect can be obtained by using the mode 2 after using the mode 1, and therefore the application can adjust the lighting brightness of the lamp in a grading manner and has good applicability; and it is very convenient to adjust the brightness using the dimmer 1.
In addition, aiming at the use modes 1 and 2, only part of the electric appliances work, so that the fault rate is low, the electric energy loss is less, and the energy-saving and environment-friendly effects are achieved.
Preferably, the LED lamp can be a line lamp, the first LED module 2 and the second LED module 3 can be provided in plurality as required, the LED modules are connected in parallel, and each LED module can be wired inside the lamp independently, or can be connected in parallel by a DC bus of the light source board.
Each LED light-emitting unit 6 can be arranged along the length direction of the linear lamp, and the LED light-emitting units 6 which are uniformly staggered along the length direction can freely adjust the output power through the dimmer 1, so that the LED light-emitting unit is suitable for light and shade scenes, and has better use experience.
It can be understood that the greater the difference between the numbers of the LED light-emitting units 6 of the first LED module 2 and the second LED module 3, the greater the difference between the total output powers of the LED modules, so that the luminance of the first LED module 2 is visually greater than that of the second LED module 3, and when the first LED module 2 and the second LED module 3 operate simultaneously, the lighting of the lamp is not uniform. Therefore, in the present application, the ratio of the number of the LED light emitting units 6 of the first LED module 2 and the second LED module 3 may be in the range of 1:1 to 1: 3. The number ratio of the LED light-emitting units 6 is controlled within the range, so that the lighting effect of the lamp can be well ensured.
Preferably, referring to fig. 1, the number ratio of the LED light emitting units 6 of the first LED module 2 and the second LED module 3 may be 1: 2. In the present application, the number of the LED light emitting units 6 of the first LED module 2 and the second LED module 3 may be set to 6 and 3, respectively, as shown in fig. 1.
When in connection, the 6 LED light-emitting units 6 are connected in series to form a first LED module 2, and the first LED module 2 is connected in series with the first LED power supply 4; the 3 LED light-emitting units 6 are connected in series to form a second LED module 3, and the second LED module 3 is connected in series with a second LED power supply 5; the DALI or 1-10V signal lines of the power supplies may be connected in parallel, with the first LED power supply 4 and the second LED power supply 5 connected in parallel to the neutral and live lines and in parallel to the dimmer 1.
When each LED light-emitting unit 6 works at rated power, aiming at the first use mode, the total output power of the LED module is 60W, and the light-emitting brightness is L1(ii) a Aiming at the second use mode, the total output power of the LED module is 30W, and the luminous brightness is L2(L2＜L1) (ii) a Aiming at the third use mode, the total output power of the LED module is 90W, and the luminous brightness is larger than L1Thus, different shading effects can be obtained.
Since the number ratio of the LED light emitting units 6 of the first LED module 2 and the second LED module 3 is 1:2, L1And L2The size of the light-emitting area is not too different, and the brightness of the light-emitting area is not differentThe difference is not obvious. Preferably, the LED light emitting units 6 of the 1 second LED modules 3 may be staggered between the LED light emitting units 6 of the 2 first LED modules 2, so that light waves can be superimposed at a short distance, uniformity of light emission of the lamp is ensured, and lighting effect is improved.
It is to be understood that the terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only, and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a" and "an" typically include at least two, but do not exclude the presence of at least one.
It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe certain components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. For example, a first certain component may also be referred to as a second certain component, and similarly, a second certain component may also be referred to as a first certain component without departing from the scope of embodiments herein.
In the embodiments of the present application, "substantially equal to", "substantially perpendicular", "substantially symmetrical", and the like mean that the macroscopic size or relative positional relationship between the two features referred to is very close to the stated relationship. However, it is clear to those skilled in the art that the positional relationship of the object is difficult to be exactly constrained at small scale or even at microscopic angles due to the existence of objective factors such as errors, tolerances, etc. Therefore, even if a slight point error exists in the size and position relationship between the two, the technical effect of the present application is not greatly affected.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
Finally, it should be noted that those skilled in the art will appreciate that embodiments of the present application present many technical details for the purpose of enabling the reader to better understand the present application. However, the technical solutions claimed in the claims of the present application can be basically implemented without these technical details and various changes and modifications based on the above-described embodiments. Accordingly, in actual practice, various changes in form and detail may be made to the above-described embodiments without departing from the spirit and scope of the present application.
Claims (10)
1. An LED lamp, comprising:
the LED driving circuit comprises a dimmer, a first LED module, a second LED module, a first LED power supply and a second LED power supply;
the first LED module is connected with the first LED power supply, and the second LED module is connected with the second LED power supply;
the first LED power supply and the second LED power supply are connected in parallel to a mains supply and are connected in parallel with the dimmer.
2. The LED light fixture of claim 1 wherein the power rating of the first LED power supply matches the power rating of the first LED module.
3. The LED light fixture of claim 2 wherein the power rating of the second LED power supply is greater than the power rating of the second LED module, the dimmer being configured to adjust the actual output power of the second LED power supply to the power rating of the second LED module.
4. The LED light fixture of claim 1 wherein the first LED module comprises a plurality of LED lighting units.
5. The LED lamp of claim 4, wherein the LED lighting units are connected in series.
6. The LED light fixture of claim 4 wherein the second LED module comprises a plurality of LED lighting units.
7. The LED lamp of claim 6, wherein the LED light emitting units of the first LED module and the second LED module are uniformly distributed in a staggered manner.
8. The LED lamp according to claim 7, wherein the LED lamp is a linear lamp, and each LED light-emitting unit is arranged along the length direction of the linear lamp.
9. The LED lamp of claim 7, wherein the number ratio of the LED lighting units of the first LED module and the second LED module is in the range of 1:1 to 1: 3.
10. The LED light fixture of claim 9 wherein the first LED module and the second LED module have a 1:2 ratio of LED lighting units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023335023.8U CN214125568U (en) | 2020-12-30 | 2020-12-30 | LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023335023.8U CN214125568U (en) | 2020-12-30 | 2020-12-30 | LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214125568U true CN214125568U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023335023.8U Active CN214125568U (en) | 2020-12-30 | 2020-12-30 | LED lamp |
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| Country | Link |
|---|---|
| CN (1) | CN214125568U (en) |
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2020
- 2020-12-30 CN CN202023335023.8U patent/CN214125568U/en active Active
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