LED tubular lamp with adjustable brightness and color temperature

Abstract

The utility model discloses an LED tubular lamp with adjustable brightness and color temperature, which comprises at least two flexible light sources, a transparent protection tube is arranged outside the flexible light sources, the two flexible light sources are fixedly arranged inside the transparent protection tube, a driving controller is fixedly arranged outside the transparent protection tube, and the driving controller is connected with the flexible light sources. The driving controller penetrates through the transparent protection tube to be electrically connected with the flexible light sources, and the two flexible light sources are subjected to three-section dimming operation or three-section color temperature adjustment operation through the driving controller. The LED tubular lamp with the adjustable brightness and color temperature is composed of at least two flexible light sources. Each flexible light source is installed inside a transparent protective tube, and a driving controller is installed outside the transparent protective tube. And the driving controller is electrically connected with the flexible light source through the transparent protection tube. The flexible light source can perform three-section dimming operation or three-section color temperature adjustment operation through the driving controller.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED lamps, and in particular relates to an LED tube lamp with adjustable brightness and color temperature. Background Art

[0002] LED lamps are lighting devices that use LEDs (light-emitting diodes) as light sources. They have the advantages of low energy consumption, long life and high brightness, so they are widely used in many occasions.

[0003] LED lights can be used in home lighting, commercial lighting, automotive lighting, etc. They come in a variety of shapes and sizes, such as LED bulbs, LED light strips, LED downlights, and more.

[0004] A patent with publication number CN203757479U in a traditional device discloses an LED light strip, comprising a sleeve, the top of which is open, a receiving frame arranged inside the sleeve, a circuit board and a plurality of LED light sources mounted on the receiving frame, the circuit board being electrically connected to the LED light source, and the plurality of LED light sources being located at the opening at the top of the sleeve, a transparent protective plate being arranged at the top opening of the sleeve; further comprising a transparent supporting plate, one end of the supporting plate being connected to the transparent protective plate, and the other end of the supporting plate being connected to the inner wall of the sleeve; a cooling pipe being arranged inside the sleeve, and a water inlet and a water outlet being arranged on the cooling pipe, and the receiving frame being an aluminum receiving frame.

[0005] However, there are some problems with the existing technology: the brightness of traditional LED light strips is uncontrollable and the color is single, lacking the basic multi-color display effect when in use. Some LED light strips with multi-color display use one light strip to integrate multiple colors of patches, which may lead to a decrease in the brightness of the light strip. Therefore, we propose an LED tubular lamp with adjustable brightness and color temperature. Utility Model Content

[0006] In response to the problems existing in the prior art, the utility model provides an LED tubular lamp with adjustable brightness and color temperature, which solves the problem that the brightness of traditional LED light strips is uncontrollable and the color is single, and there is a lack of basic multi-color display effect when in use. Some LED lamps with multi-color display use one light strip to integrate patches of multiple colors, which may lead to reduced brightness of the light strip.

[0007] The utility model is implemented as follows: an LED tubular lamp with adjustable brightness and color temperature comprises a flexible light source, wherein the flexible light sources are at least two, a transparent protective tube is arranged outside the flexible light source, the two flexible light sources are fixedly installed inside the transparent protective tube, a driving controller is fixedly installed outside the transparent protective tube, the driving controller is electrically connected to the flexible light source through the transparent protective tube, and the two flexible light sources are controlled by the driving controller to perform three-stage dimming operation or three-stage color temperature adjustment operation.

[0008] As a preferred embodiment of the utility model, the flexible light source is single-ended, the transparent protection tube comprises an outer tube and an inner tube, the inner tube is fixed inside the outer tube, and the flexible light source is located in the inner tube.

[0009] As a preferred embodiment of the present invention, the flexible light source is double-ended.

[0010] As a preferred embodiment of the present invention, the length of the flexible light source includes 300 mm, 500 mm, and 1000 mm, and the length of the flexible light source is not more than six meters.

[0011] As a preferred embodiment of the present invention, the flexible light source input voltage is suitable for AC voltages such as US standard 120 volts, European standard 230 volts and Japanese standard 100 volts.

[0012] As a preferred embodiment of the utility model, three flexible light sources are provided, the three flexible light sources are flexible light sources, and the three flexible light sources are controlled by the driving controller to perform multi-tone light operation.

[0013] As a preferred embodiment of the present invention, two drive controllers are provided, and the two drive controllers are electrically connected to the flexible light source.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is composed of at least two flexible light sources. Each flexible light source is installed inside a transparent protective tube, and a driving controller is installed outside the transparent protective tube. The driving controller is electrically connected to the flexible light source through the transparent protective tube. The flexible light source can perform three-stage dimming operation or three-stage color temperature adjustment operation through the driving controller;

[0016] 2. The control chip model of the drive controller of the utility model is SM2213EA. When SM2213EA is used in a 3-stage brightness adjustment application, the output current can be changed in sequence according to the on and off of the power switch, thereby changing the brightness of the flexible light source, and the adjustment ratio can be adjusted by an external REXT resistor; when SM2213EA is used in a 3-stage color temperature adjustment application, the switch states of the two output ports can be changed in sequence according to the on and off of the power switch, so as to realize the alternating on and off of two flexible light sources of different colors to achieve the purpose of adjusting the color temperature, and the output power can be adjusted by adjusting the external REXT resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the outer tube provided by the embodiment of the utility model;

[0019] Figure 3 The utility model embodiment provides Figure 2 Schematic diagram of the structure at A in the middle;

[0020] Figure 4 It is an overall schematic diagram provided by another embodiment of the utility model;

[0021] Figure 5 This is a schematic circuit diagram of three-stage dimming provided by an embodiment of the utility model;

[0022] Figure 6 This is a schematic circuit diagram of a three-stage color temperature adjustment provided by an embodiment of the utility model;

[0023] Figure 7 The utility model provides a multi-chip control circuit diagram.

[0024] In the figure: 1. outer tube; 2. drive controller; 3. inner tube; 4. flexible light source. DETAILED DESCRIPTION

[0025] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0026] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 7 As shown, an embodiment of the utility model provides an LED tubular lamp with adjustable brightness and color temperature, including a flexible light source 4, at least two flexible light sources 4, a transparent protective tube is provided on the outside of the flexible light source 4, two flexible light sources 4 are fixedly installed inside the transparent protective tube, a drive controller 2 is fixedly installed outside the transparent protective tube, the drive controller 2 is electrically connected to the flexible light source 4 through the transparent protective tube, and the two flexible light sources 4 are controlled by the drive controller 2 to perform three-stage dimming operation or three-stage color temperature adjustment operation.

[0028] The LED tube lamp with adjustable brightness and color temperature is composed of at least two flexible light sources 4. Each flexible light source 4 is installed inside a transparent protective tube, and a driving controller 2 is installed outside the transparent protective tube. The driving controller 2 is electrically connected to the flexible light source 4 through the transparent protective tube. The flexible light source 4 can perform three-stage dimming operation or three-stage color temperature adjustment operation through the driving controller 2;

[0029] The control chip model of the driving controller 2 is SM2213EA. When SM2213EA is used in a 3-stage brightness adjustment application, the output current can be changed in sequence according to turning on and off the power switch, thereby changing the brightness of the flexible light source 4. The adjustment ratio can be adjusted by an external REXT resistor;

[0030] When SM2213EA is used in a 3-stage color temperature adjustment application, the switch states of the two output ports can be changed in sequence according to the on and off of the power switch, so that the two flexible light sources 4 of different colors can be alternately turned on and off to achieve the purpose of adjusting the color temperature. The output power can be adjusted by adjusting the external REXT resistor.

[0031] Single chip application solution 1:

[0032] R1=100Ω,R2=10Ω,when 0.3s<switching period<3s:

[0033] When the switch is turned on for the first time, the average output current IOUT = 30mA;

[0034] When the switch is turned on for the second time, the average output current IOUT = 15mA;

[0035] When the switch is turned on for the third time, the average output current IOUT = 3mA.

[0036] The dimming ratio is 100%, 50%, 10%.

[0037] When the switching period is greater than 3s, the system returns to the initial state and the average output current IOUT = 30mA.

[0038] Single chip application solution 2:

[0039] R1=R2=10Ω, when 0.3s<switching period<3s:

[0040] When the switch is turned on for the first time, the average output current IOUT2 ​​= 30mA.

[0041] When the switch is turned on for the second time, the average output current IOUT1 = IOUT2 ​​= 15mA, and the total output current is 30mA.

[0042] When the switch is turned on for the third time, the average output current IOUT1 = 30mA.

[0043] When the switching period is greater than 3s, the initial state is restored and the average output current IOUT2 ​​= 30mA.

[0044] In this embodiment, the flexible light source 4 is single-ended, the transparent protection tube comprises an outer tube 1 and an inner tube 3 , the inner tube 3 is fixed inside the outer tube 1 , and the flexible light source 4 is located in the inner tube 3 .

[0045] In another embodiment, the flexible light source 4 is double-ended.

[0046] In this embodiment, the length of the flexible light source 4 includes 300 mm, 500 mm, and 1000 mm, and the length of the flexible light source 4 is not greater than six meters.

[0047] In this embodiment, the input voltage of the flexible light source 4 is suitable for AC voltages such as US standard 120 volts, European standard 230 volts and Japanese standard 100 volts.

[0048] In this embodiment, three flexible light sources 4 are provided. The three flexible light sources 4 are three-primary color flexible light sources 4 . The three flexible light sources 4 are controlled by the driving controller 2 to perform multi-color lighting operation.

[0049] In this embodiment, two driving controllers 2 are provided, and the two driving controllers 2 are electrically connected to the flexible light source 4 .

[0050] Multi-chip application solutions:

[0051] R1, R3, R5 = 100Ω, R2, R4, R6 = 10Ω, 0.3s < switching period < 3s:

[0052] When the switch is turned on for the first time, the output current IOUT = 90mA;

[0053] When the switch is turned on for the second time, the output current IOUT = 45mA;

[0054] When the switch is turned on for the third time, the output current IOUT = 9mA.

[0055] The dimming ratio is 100%, 50%, 10%.

[0056] When the switching cycle is greater than 3s, the initial state is restored and the output current IOUT = 45mA.

[0057] The flexible light source is sealed at high temperature, filled with heat dissipation gas, and the light source and lamp housing are integrally molded.

[0058] The working principle of this utility model:

[0059] The flexible light source 4 can perform three-stage dimming operation or three-stage color temperature adjustment operation by driving the controller 2;

[0060] The control chip model of the drive controller 2 is SM2213EA. When SM2213EA is used in a 3-stage brightness adjustment application, the output current can be changed in sequence according to the on and off power switch, thereby changing the brightness of the flexible light source 4, and the adjustment ratio can be adjusted by an external REXT resistor; when SM2213EA is used in a 3-stage color temperature adjustment application, the switch states of the two output ports can be changed in sequence according to the on and off power switch, so as to realize the alternating lighting of two flexible light sources 4 of different colors to achieve the purpose of adjusting the color temperature, and the output power can be adjusted by adjusting the external REXT resistor.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A LED tube lamp with adjustable brightness and color temperature, comprising a flexible light source (4), characterized in that: There are no less than two flexible light sources (4), a transparent protective tube is provided outside the flexible light source (4), the two flexible light sources (4) are fixedly installed inside the transparent protective tube, a drive controller (2) is fixedly installed outside the transparent protective tube, the drive controller (2) is electrically connected to the flexible light source (4) through the transparent protective tube, and the two flexible light sources (4) are controlled by the drive controller (2) to perform three-stage dimming operation or three-stage color temperature adjustment operation.

2. The LED tube lamp with adjustable brightness and color temperature as claimed in claim 1, characterized in that: The flexible light source (4) is single-ended, the transparent protective tube comprises an outer tube (1) and an inner tube (3), the inner tube (3) is fixed inside the outer tube (1), and the flexible light source (4) is located in the inner tube (3).

3. The LED tube lamp with adjustable brightness and color temperature as claimed in claim 1, characterized in that: The flexible light source (4) is double-ended.

4. The LED tube lamp with adjustable brightness and color temperature as claimed in claim 1, characterized in that: The length of the flexible light source (4) mainly includes 300 mm, 500 mm, and 1000 mm, and the length of the flexible light source (4) is not more than six meters.

5. The LED tube lamp with adjustable brightness and color temperature as claimed in claim 1, characterized in that: The input voltage of the flexible light source (4) is suitable for AC voltages such as US standard 120 volts, European standard 230 volts and Japanese standard 100 volts.

6. The LED tube lamp with adjustable brightness and color temperature as claimed in claim 1, characterized in that: The three flexible light sources (4) are provided with three primary colors of flexible light sources (4), and the three flexible light sources (4) are controlled by the driving controller (2) to perform multi-color light operation.

7. The LED tube lamp with adjustable brightness and color temperature as claimed in claim 1, characterized in that: Two drive controllers (2) are provided, and the two drive controllers (2) are electrically connected to the flexible light source (4).

Images