Filament and lamp

Abstract

The utility model discloses a lamp filament and a lamp, and belongs to the field of LED light sources. The lamp filament comprises a substrate, at least one group of color temperature light source modules and at least one group of basic color light source modules are sequentially arranged on the substrate in the length direction of the substrate, and the color temperature light source modules and the basic color light source modules are alternately arranged in the length direction of the substrate to form a lamp filament body; one end or two ends of the substrate are respectively provided with a plurality of positive electrode pins and negative electrode pins, and the positive electrode ends and the negative electrode ends of the color temperature light source modules and the basic color light source modules are correspondingly connected to the positive electrode pins and the negative electrode pins on the substrate; according to the arrangement, the light sources are integrated on one substrate, meanwhile, the mutual influence of the two groups of light sources in the light emitting process is reduced, and the color purity is improved.

Description

Technical Field

[0001] The utility model belongs to the field of LED light sources, and more specifically, relates to a filament and a lamp. Background Art

[0002] As one of the representatives of intelligent lighting, RGBCW filament lamp is highly customizable and scalable.

[0003] In the prior art, the "LED flexible light strip and LED flexible lamp" disclosed in the Chinese patent document, the utility model patent with application number CN201922401006.0 discloses an LED flexible light strip including several groups of monochromatic light source filaments and a flexible light-transmitting layer; the flexible light-transmitting layer is wrapped on the surface of each of the monochromatic light source filaments; each of the monochromatic light source filaments is arranged in parallel to form a strip light strip; in this scheme, the RGBCW light sources are arranged in columns on the substrate, and the RGB and CW are not isolated or separately arranged, so that when the RGB light source and the CW light source emit light, there is a certain interference with the adjacent light sources, making the light color impure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a filament and a lamp, which can realize the integration of multiple color temperatures and multiple colors on the same filament, and the influence between the color temperature light source and the basic color light source is minimized.

[0005] The utility model provides a filament and a lamp, comprising a substrate, wherein at least one group of color temperature light source modules and at least one group of basic color light source modules are sequentially arranged along the length direction of the substrate, and the color temperature light source modules and the basic color light source modules are alternately arranged along the length direction of the substrate to form a filament body; a plurality of positive pins and negative pins are respectively arranged at one end or both ends of the substrate, and the positive terminal and the negative terminal of each color temperature light source module and each basic color light source module are correspondingly connected to the positive pin and the negative pin on the substrate.

[0006] As a further improvement of the present invention, after each basic color light source module is connected in series, in parallel, or in series and in parallel, its positive end is electrically connected to the corresponding positive pin, and its negative end is electrically connected to the negative pin;

[0007] After the color temperature light source modules are connected in series, in parallel, or in series and in parallel, their positive terminals are electrically connected to the other corresponding positive pins, and their negative terminals are electrically connected to the negative pins.

[0008] As a further improvement of the present invention, the color temperature light source module includes a first light-transmitting glue layer and a first light-emitting chip, and a plurality of first light-emitting chips are laid out in a row along the length direction of the substrate, and the positive ends of the light-emitting chips in each row are electrically connected to independent positive pins through first conductive lines connected in series, in parallel, or in series and in parallel, and the negative ends are connected to negative pins; the first light-transmitting glue layer includes a cold white glue layer or a warm white glue layer;

[0009] The first light-emitting chips in each column are covered with a cold white glue layer or a warm white glue layer according to the required color temperature, and are covered to the substrate; after being excited and lit by the cold white glue layer, the first light-emitting chip forms cold white light; or after being excited and lit by the warm white glue layer, the first light-emitting chip forms warm white light.

[0010] As a further improvement of the present invention, the substrate is a flexible light-transmitting substrate, and the other side of the substrate corresponding to the position of the first light-transmitting adhesive layer is respectively covered with a first back light-transmitting adhesive layer.

[0011] As a further improvement of the utility model, the substrate includes a substrate 1; the basic color light source module includes a second light-transmitting adhesive layer and a plurality of natural color light-emitting chips of different colors, the plurality of natural color light-emitting chips are laid out in a row along the length direction of the substrate 1 according to different colors, and the positive ends of the natural color light-emitting chips of the same color in each row are respectively electrically connected to independent positive pins after being connected in series, in parallel, or in series and in parallel through a second conductive circuit, and the negative ends thereof are respectively connected to the negative pins;

[0012] Each row of the same color natural color light emitting chips is respectively covered on the substrate in rows through the second light-transmitting adhesive layer.

[0013] As a further improvement of the present invention, the substrate is a flexible light-transmitting substrate, and the other side of the substrate corresponding to the position of the second light-transmitting adhesive layer is respectively covered with a second back light-transmitting adhesive layer.

[0014] As a further improvement of the present invention, the true color light emitting chip includes a red light emitting chip, a green light emitting chip or a blue light emitting chip.

[0015] As a further improvement of the utility model, the color temperature light source modules and the basic color light source modules are respectively arranged on the front side of the substrate, and a plurality of connecting circuit layers are arranged on the back side of the substrate. The color temperature light source modules or the basic color light source modules are respectively electrically connected to each connecting circuit layer by a first conductive circuit or a second conductive circuit through a plurality of via holes opened on the substrate, and are connected in series / parallel as a whole between the positive pin and the negative pin.

[0016] As a further improvement of the utility model, the width of the substrate is less than or equal to 3 mm; and a heat shrink tubing is provided on the outer jacket of the filament body.

[0017] As a further improvement of the present utility model, a bending portion is provided between the adjacent color temperature light source modules and the basic color light source modules.

[0018] A lamp using any of the above-mentioned filaments comprises a carrier, a filament body is arranged in the carrier, and each positive pin and negative pin of the filament body are electrically connected to a built-in or external power supply.

[0019] As a further improvement of the utility model, the carrier includes a bulb shell, a power driver and a lamp holder for electrically connecting to an external power supply, the filament body is arranged in the bulb shell, the lamp holder is connected to the outside of the bulb shell, the power driver is placed in the lamp holder, and each positive pin and negative pin of the filament body is electrically connected to the power driver and electrically connected to the lamp holder;

[0020] Alternatively, the carrier includes a light-transmitting cover, a lamp holder, a power driver and a lithium battery as a built-in power source, the filament body is arranged in the light-transmitting cover, the power driver and the lithium battery are placed in the lamp holder, and the positive and negative pins of the filament body are electrically connected to the lithium battery via the power driver.

[0021] Compared with the prior art, the beneficial effect of the present invention is that the scheme of the present invention arranges the color temperature light source and the basic color light source alternately on the same filament substrate, which not only realizes the integration of the light source on the same filament, but also reduces the mutual interference between the basic color light source and the color temperature light source when emitting light, thereby improving the color purity.

[0022] The portion adjacent to the color temperature light source and the basic color light source is a bending portion, which can be bent or curved as required, thereby increasing the shaping of the filament and enriching the shape of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the schematic diagrams of the filament structure of the utility model;

[0024] Figure 2 This is the second schematic diagram of the filament structure of the utility model;

[0025] Figure 3 This is the third schematic diagram of the filament structure of the utility model;

[0026] Figure 4 This is one of the schematic diagrams of the front structure of the filament of the utility model;

[0027] Figure 5 This is one of the schematic diagrams of the back structure of the filament of the utility model;

[0028] Figure 6 This is the second schematic diagram of the front structure of the filament of the utility model;

[0029] Figure 7 This is the second schematic diagram of the back structure of the filament of the utility model;

[0030] Figure 8This is the third schematic diagram of the front structure of the filament of the utility model;

[0031] Fig. 9 This is the third schematic diagram of the back structure of the filament of the utility model;

[0032] Fig.10 This is a schematic diagram of the structure of a light bulb of the utility model;

[0033] Fig.11 It is a schematic diagram of the structure of the lamp of the utility model;

[0034] Fig.12 This is a schematic diagram of a filament structure of the utility model in which a positive electrode pin and a negative electrode pin are arranged at the same end.

[0035] Description of the numbers in the figure:

[0036] 1. Substrate; 2. Color temperature light source module; 21. First light-transmitting adhesive layer; 22. Warm white light-emitting chip; 23. Cold white light-emitting chip; 24. First back light-transmitting adhesive layer; 3. Basic color light source module; 31. Second light-transmitting adhesive layer; 32. True color light-emitting chip; 321. Red light-emitting chip; 322. Green light-emitting chip; 323. Blue light-emitting chip; 33. Second back light-transmitting adhesive layer; 4. Positive pin; 41. First positive pin; 42. Second positive pin; 43. Third positive pin; 44. Fourth positive pin; 45. Fifth positive pin; 5. Negative pin; 6. Connecting circuit layer; 7. First conductive circuit; 8. Second conductive circuit; 100. Filament body; 9. Via hole; 30. Bulb shell; 40. Power driver; 50. Lamp holder; 60. Lithium battery; 70. Light-transmitting cover; 80. Lamp holder. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below in conjunction with the embodiments. The following embodiments are intended to explain the present invention but the present invention is not limited to the following embodiments.

[0038] Specific implementation: Please refer to Figure 1-12 A filament comprises a substrate 1, wherein the substrate 1 is sequentially provided with at least one group of color temperature light source modules 2 and at least one group of basic color light source modules 3 along the length direction thereof, the color temperature light source modules 2 and the basic color light source modules 3 are alternately arranged along the length direction of the substrate 1 to form a filament body 100, a plurality of positive pins 4 and negative pins 5 are respectively provided at one end or both ends of the substrate 1, and the positive terminal and the negative terminal of each color temperature light source module 2 and each basic color light source module 3 are correspondingly connected to the positive pin 4 and the negative pin 5 on the substrate.

[0039] After the color temperature light source modules 2 are connected in series, in parallel, or in series and in parallel, their positive terminals are electrically connected to the other corresponding positive pins 4, and their negative terminals are electrically connected to the negative pins 5;

[0040] After the basic color light source modules 3 are connected in series, in parallel, or in series and in parallel, their positive terminals are electrically connected to the corresponding positive pins 4 , and their negative terminals are electrically connected to the negative pins 5 .

[0041] The color temperature light source module 2 includes a first light-transmitting adhesive layer 21 and a plurality of first light-emitting chips. The plurality of first light-emitting chips are arranged in a row along the length direction of the substrate 1 according to different color temperatures. The positive ends of the light-emitting chips with the same color temperature in each row are electrically connected to independent positive pins 4 after being connected in series, in parallel, or in series and in parallel through a first conductive circuit 7, and the negative ends are connected to negative pins 5 respectively; the light-emitting chips with the same color temperature in each row are covered with a corresponding first light-transmitting adhesive layer 21, and cover the substrate 1.

[0042] Optionally, the first light-emitting chip is a blue light-emitting chip, and the first light-transmitting glue layer 21 includes a cold white glue layer or a warm white glue layer; each column of the first light-emitting chips is covered with a cold white glue layer or a warm white glue layer according to the required color temperature, and covered to the substrate; after being excited and lit by the cold white glue layer, the first light-emitting chip forms cold white light; or after being excited and lit by the warm white glue layer, the first light-emitting chip forms warm white light.

[0043] Optionally, the first light-emitting chip may also be directly the warm white light-emitting chip 22 and the cold white light-emitting chip 23 .

[0044] Optionally, the first light-emitting chip is a warm white light-emitting chip 22 and / or a cold white light-emitting chip 23, and several warm white light-emitting chips 22 and / or cold white light-emitting chips 23 are laid out in a row along the length direction of the substrate 1 according to different color temperatures, and the positive ends of the light-emitting chips with the same color temperature in each row are electrically connected to independent positive pins 4 after being connected in series, in parallel, or in series and parallel through the first conductive circuit 7, and their negative ends are respectively connected to the negative pins 5.

[0045] Optionally, the positive ends of the row of warm white light-emitting chips 22 after being electrically connected by the first conductive circuit 7 along the length direction of the substrate 1 are connected to the first positive pin 41; the positive ends of the row of cold white light-emitting chips 23 after being electrically connected by the first conductive circuit 7 along the length direction of the substrate 1 are connected to the second positive pin 42; the negative ends of the row of warm white light-emitting chips 22 and / or the row of cold white light-emitting chips 23 after being electrically connected by the first conductive circuit 7 are uniformly connected to at least one negative pin 5.

[0046] Optionally, the first light-emitting chip is a blue light-emitting chip, and a plurality of blue light-emitting chips are connected in series, in parallel, or in a mixture of series and parallel and laid out along the length direction of the substrate 1 to form a plurality of light-emitting circuits, and the light-emitting circuits are respectively covered with corresponding first light-transmitting adhesive layers 21, and the first light-transmitting adhesive layer 21 is an adhesive layer mixed with fluorescent powder, and the ratio of the fluorescent powder in the first light-transmitting adhesive layer 21 on each light-emitting circuit is different, so corresponding color temperature light source modules 2 are formed respectively.

[0047] The substrate 1 is a flexible light-transmitting substrate, and the other side of the substrate 1 corresponding to the position of the first light-transmitting adhesive layer 21 is respectively covered with a first back light-transmitting adhesive layer 24 .

[0048] The basic color light source module 3 includes a second light-transmitting adhesive layer 31 and a plurality of second light-emitting chips. The plurality of second light-emitting chips are arranged in rows along the length direction of the substrate 1 according to different colors. The positive ends of the natural color light-emitting chips 32 in each column are connected in series, in parallel, or in series and in parallel through the second conductive circuit 8, and the negative ends are respectively electrically connected to the independent positive pins 4, and the negative ends are respectively connected to the negative pins 5; each column of the natural color light-emitting chips 32 of the same color is respectively covered with the corresponding second light-transmitting adhesive layer 31, and covers the substrate 1.

[0049] Optionally, the second light-emitting chip is a natural color light-emitting chip 32 of a different color, and several natural color light-emitting chips 32 are laid out in rows along the length direction of the substrate 1 according to different colors. The positive ends of the natural color light-emitting chips 32 of the same color in each row are connected in series, in parallel, or in series and parallel through the second conductive circuit 8, and their negative ends are respectively electrically connected to independent positive pins 4, and their negative ends are respectively connected to negative pins 5.

[0050] Optionally, the true color light emitting chip 32 includes a red light emitting chip 321 , a green light emitting chip 322 and a blue light emitting chip 323 .

[0051] Optionally, the positive end of the red light emitting chip 321 in a row is connected to the third positive pin 43 after being electrically connected by the second conductive circuit 8 along the length direction of the substrate; the positive end of the green light emitting chip 322 in a row is connected to the fourth positive pin 44 after being electrically connected by the second conductive circuit 8 along the length direction of the substrate; the positive end of the blue light emitting chip 323 in a row is connected to the fifth positive pin 45 after being electrically connected by the second conductive circuit 8 along the length direction of the substrate; the negative ends of the red light emitting chips 321 in a row, the green light emitting chips 322 in a row or the blue light emitting chips 323 in a row after being electrically connected by the second conductive circuit 8 are uniformly connected to at least one negative pin 5.

[0052] Optionally, the second light-emitting chip is a blue light-emitting chip, and several blue light-emitting chips are laid out in a row along the length direction of the substrate 1 to form several columns of light-emitting circuits, and the light-emitting circuits are respectively covered with corresponding second light-transmitting adhesive layers 31. The second light-transmitting adhesive layer 31 covered on one column is a transparent adhesive layer, and the second light-transmitting adhesive layer 31 on the remaining columns is an adhesive layer mixed with fluorescent powder. The ratio of the fluorescent powder in the second light-transmitting adhesive layer 31 on each light-emitting circuit is different, so corresponding basic color light source modules 3 are formed respectively.

[0053] The substrate 1 is a flexible light-transmitting substrate, and the other side of the substrate 1 corresponding to the position of the second light-transmitting adhesive layer 31 is respectively covered with a second back light-transmitting adhesive layer 33 .

[0054] Optionally, the color temperature light source module 2 and the basic color light source module 3 are respectively arranged on the front side of the substrate 1, and a plurality of connecting circuit layers 6 are arranged on the back side of the substrate 1. The color temperature light source modules 2 or the basic color light source modules 3 are respectively electrically connected to each connecting circuit layer 6 by a first conductive circuit 7 or a second conductive circuit 8 through a plurality of vias 9 opened on the substrate 1, and are connected in series / parallel as a whole between the positive pin 4 and the negative pin 5.

[0055] Preferably, the width of the substrate 1 is less than or equal to 3 mm.

[0056] Optionally, the filament body 100 is covered with a heat shrink tubing.

[0057] The area between the color temperature light source module 2 and the basic color light source module 3 is a bending portion; the color temperature light source module 2 and the basic color light source module 3 can be bent along the bending portion.

[0058] Optionally, the substrate is a bendable and curved substrate.

[0059] Optionally, the substrate is a flexible substrate or an aluminum substrate.

[0060] The basic color light source module 3 is one or more of a red light source module, a green light source module, and a blue light source module; the color temperature light source module 2 is a cold white light source module and / or a warm white light source module.

[0061] A lamp using any of the above filaments includes a carrier, a filament body 100 is arranged in the carrier, and each positive electrode pin 4 and negative electrode pin 5 of the filament body 100 is electrically connected to a built-in or external power supply.

[0062] The carrier includes a bulb shell 30, a power driver 40 and a lamp holder 50 for electrically connecting to an external power source. The filament body 100 is arranged in the bulb shell 30, the lamp holder 50 is connected to the outside of the bulb shell 30, the power driver 40 is placed in the lamp holder 50, and each positive electrode pin 4 and negative electrode pin 5 of the filament body 100 is electrically connected to the power driver 40 and electrically connected to the lamp holder 50;

[0063] Alternatively, the carrier includes a light-transmitting cover 70, a lamp holder 80, a power driver 40 and a lithium battery 60 as a built-in power source, the filament body 100 is arranged in the light-transmitting cover 70, the power driver 40 and the lithium battery 60 are placed in the lamp holder 80, and the positive pin 4 and the negative pin 5 of the filament body 100 are electrically connected to the lithium battery 60 via the power driver 40.

[0064] The above is only a preferred specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed in the present application according to the technical solution and improved ideas of the present application, which should be covered by the protection scope of the present application.

Claims

1. A filament, characterized in that: The invention comprises a substrate (1), wherein at least one group of color temperature light source modules (2) and at least one group of basic color light source modules (3) are sequentially arranged along the length direction of the substrate (1), the color temperature light source modules (2) and the basic color light source modules (3) are respectively arranged in sections along the length direction of the substrate (1) to form a filament body (100), one end or both ends of the substrate (1) are respectively provided with a plurality of positive electrode pins (4) and negative electrode pins (5), and the positive terminal and the negative terminal of each color temperature light source module (2) and each basic color light source module (3) are correspondingly connected to the positive electrode pin (4) and the negative electrode pin (5) on the substrate.

2. A filament according to claim 1, characterized in that: After the basic color light source modules (3) are connected in series, in parallel, or in series and in parallel, their positive ends are electrically connected to the corresponding positive pins (4), and their negative ends are electrically connected to the negative pins (5); After the color temperature light source modules (2) are connected in series, in parallel, or in series and in parallel, their positive terminals are electrically connected to the other corresponding positive pins (4), and their negative terminals are electrically connected to the negative pins (5).

3. A filament according to claim 1, characterized in that: The color temperature light source module (2) comprises a first light-transmitting adhesive layer (21) and a plurality of first light-emitting chips, the plurality of first light-emitting chips being arranged in rows along the length direction of the substrate (1), the positive ends of the light-emitting chips in each row being connected in series, in parallel or in series and in parallel via a first conductive circuit (7) being electrically connected to an independent positive electrode pin (4), and the negative ends thereof being electrically connected to a negative electrode pin (5); the first light-transmitting adhesive layer (21) comprises a cold white adhesive layer or a warm white adhesive layer; The first light-emitting chips in each column are covered with a cold white glue layer or a warm white glue layer according to the required color temperature, and are covered to the substrate; After being excited and lit by the cold white glue layer, the first light-emitting chip forms cold white light; or after being excited and lit by the warm white glue layer, the first light-emitting chip forms warm white light.

4. A filament according to claim 3, characterized in that: The substrate (1) is a flexible light-transmitting substrate, and the other side of the substrate (1) corresponding to the position of the first light-transmitting adhesive layer (21) is respectively covered with a first back light-transmitting adhesive layer (24).

5. A filament according to claim 1, characterized in that: The basic color light source module (3) comprises a second light-transmitting adhesive layer (31) and a plurality of natural color light-emitting chips (32) of different colors. The plurality of natural color light-emitting chips (32) are arranged in rows along the length direction of the substrate (1) according to the different colors. The positive ends of the natural color light-emitting chips (32) of the same color in each row are electrically connected to independent positive pins (4) after being connected in series, in parallel, or in series and in parallel through a second conductive circuit (8), and the negative ends are electrically connected to negative pins (5). Each row of true-color light-emitting chips (32) of the same color is covered in rows on the substrate through the second light-transmitting adhesive layer (31).

6. A filament according to claim 5, characterized in that: The substrate (1) is a flexible light-transmitting substrate, and the other side of the substrate (1) corresponding to the position of the second light-transmitting adhesive layer (31) is respectively covered with a second back light-transmitting adhesive layer (33).

7. A filament according to claim 5, characterized in that: The true color light emitting chip (32) comprises a red light emitting chip (321), a green light emitting chip (322), or a blue light emitting chip (323).

8. A filament according to claim 1, characterized in that: The color temperature light source modules (2) and the basic color light source modules (3) are arranged on the front side of the substrate (1), respectively. A plurality of connecting circuit layers (6) are arranged on the back side of the substrate (1). The plurality of color temperature light source modules (2) or the plurality of basic color light source modules (3) are electrically connected to each connecting circuit layer (6) via a plurality of via holes (9) provided on the substrate (1) via a first conductive circuit (7) or a second conductive circuit (8), respectively, and are connected in series or parallel between the positive electrode pin (4) and the negative electrode pin (5).

9. A filament according to claim 1, characterized in that: The width of the substrate (1) is less than or equal to 3 mm; and the outer shell of the filament body (100) is provided with a heat shrink tubing.

10. A filament according to claim 1, characterized in that: The area between the color temperature light source module (2) and the basic color light source module (3) serves as a bending portion.

11. A lamp using the filament according to any one of claims 1 to 10, characterized in that: It comprises a carrier, a filament body (100) is arranged in the carrier, and each positive electrode pin (4) and negative electrode pin (5) of the filament body (100) are electrically connected to a built-in or external power supply respectively.

12. The lamp according to claim 11, characterized in that: The carrier comprises a bulb (30), a power driver (40) and a lamp holder (50) for electrically connecting to an external power source, the filament body (100) is arranged in the bulb (30), the lamp holder (50) is connected to the outside of the bulb (30), the power driver (40) is arranged in the lamp holder (50), and each positive electrode pin (4) and negative electrode pin (5) of the filament body (100) is electrically connected to the power driver (40) and electrically connected to the lamp holder (50); Alternatively, the carrier comprises a light-transmitting cover (70), a lamp holder (80), a power driver (40), and a lithium battery (60) as a built-in power source; the filament body (100) is arranged in the light-transmitting cover (70); the power driver (40) and the lithium battery (60) are placed in the lamp holder (80); and each positive electrode pin (4) and negative electrode pin (5) of the filament body (100) is electrically connected to the lithium battery (60) via the power driver (40).

Images