CN213299688U - Colorful LED lamp strip - Google Patents

Abstract

The utility model relates to a colorful LED lamp strip, a plurality of LED chips on including the base plate and locating the base plate, it is a plurality of the LED chip forms at least one luminescence unit, and every luminescence unit includes first luminescence chip second luminescence chip and first excitation chip, first excitation chip is covered with phosphor powder in order to send predetermined look color light, first excitation is equipped with the first barrier dam of adiacticity between chip and the first luminescence chip, first barrier dam with first luminescence chip second luminescence chip light isolation outside first excitation chip so that first excitation chip does not receive first luminescence chip to influence. The exciting chip is separated from the light-emitting chip through the blocking dam, and the influence of light emission of other chips is avoided, so that the light-emitting effect is better, the light-emitting efficiency is better, the expected light-emitting requirement is met, meanwhile, the blocking dam can effectively protect the fluorescent powder and the LED light-emitting chip, the service life of the lamp strip is prolonged, and the market requirement is met to a greater extent.

Description

Colorful LED lamp strip

Technical Field

The utility model relates to a relevant product technology field of LED lamp, concretely relates to colorful LED lamp area.

Background

As a novel solid-state illumination light source, the LED has the characteristics of excellent energy conservation, environmental protection, low cost, long service life and the like, so that the LED is widely researched and applied in the fields of illumination and display lamps in recent years. Meanwhile, with the high requirements of people on light quality and the diverse requirements of different application scenes on light source selection, light sources with more colors or performances are required in the future to meet the increasing illumination application.

In the prior art, the LED lamp strip is generally only an RGB lamp strip, an LED monochromatic lamp strip and phosphor powder to excite white light, and the phosphor powder is generally covered on the surface of the light emitting chip and is not protected, so that the LED lamp strip has a short service life, and the implementation method is not diversified enough, and is difficult to meet the requirements of users.

SUMMERY OF THE UTILITY MODEL

In view of this, a need exists for a multi-color LED strip, which solves the problems of short service life, unsatisfactory lighting effect and single implementation method of the LED strip in the prior art.

The utility model provides a colorful LED lamp area, includes the base plate and locates a plurality of LED chips on the base plate, and is a plurality of the LED chip forms at least one luminescence unit, and every luminescence unit includes first luminescence chip second luminescence chip and first excitation chip, first excitation chip coats and has phosphor powder in order to send predetermined look color light, first excitation chip and first luminescence chip between be equipped with an impervious first barrier dam, first barrier dam is isolated first luminescence chip light so that first excitation chip does not receive first luminescence chip to influence.

Further, the at least one light emitting unit includes a plurality of light emitting units, a plurality of first light emitting chips in the plurality of light emitting units are connected in series to form a first independent circuit, and a plurality of first excitation chips of the plurality of light emitting units are connected in series to form a third independent circuit.

Furthermore, each light-emitting unit further comprises a second light-emitting chip, a plurality of second light-emitting chips are connected in series to form a second path of independent circuit, the first light-emitting chip is a blue light chip, the second light-emitting chip is a green light chip or a red light chip or the second light-emitting chip is coated with fluorescent powder to emit green light or red light, and the first excitation chip is a blue light chip or a violet light chip.

Further, the LED chips on the plurality of light emitting units are arranged according to a predetermined rule, and the LED chips are respectively coated with packaging glue or coated with continuous packaging glue according to a predetermined rule.

Further, each light emitting unit further comprises a third light emitting chip, the third light emitting chip is a chip emitting red light or green light, and a plurality of the third light emitting chips are connected in series to form a fourth independent circuit.

Furthermore, each light-emitting unit further comprises a second excitation chip, the second excitation chip is a blue light chip or a purple light chip, a plurality of second excitation chips of the light-emitting units are connected in series to form a fifth independent circuit, and the second excitation chips are coated with fluorescent powder to emit light with preset color.

Furthermore, a second light-tight barrier dam is arranged between the second excitation chip and the rest of the chips, and the second barrier dam isolates the light of the first light-emitting chip, the second light-emitting chip, the third light-emitting chip and the first excitation chip.

Further, the fluorescent powder on the first excitation chip is excited to emit white light with a first color temperature, and the fluorescent powder on the second excitation chip is excited to emit white light with a second color temperature.

Further, the first excitation chips and the second excitation chips are alternately arranged in a line or are respectively arranged in a line, the first light-emitting chips and the second light-emitting chips are alternately arranged in a line or are respectively arranged in a line, the third light-emitting chips are alternately arranged with the first light-emitting chips and the second light-emitting chips or are self-arranged in a line, and a blocking dam is arranged between the first excitation chips and the second excitation chips in the line or all the excitation chips are isolated from the light-emitting chips by a line of blocking dams.

Further, the colorful LED lamp bar comprises a plurality of sections of luminous strips, and each section of luminous strip comprises more than 6 luminous units. Specifically, every section luminous band both ends have anodal pad and negative pole pad respectively, and every end of every section luminous band all has a common polarity pad and a plurality of opposite sex pad, and a plurality of opposite sex pads are different with the polarity of common polarity pad, common polarity pad is anodal pad or negative pole pad, and the one end of each way of independent circuit in the same section luminous band is connected to common polarity pad jointly and the other end is connected to corresponding opposite sex pad respectively, and the anodal pad and the negative pole pad of every end all have the indicator of tailorring to in order to cut out required lamp strip length.

In the colorful LED lamp strip, one or more than two color lights are arranged in each light emitting unit, the exciting chip is separated from the light emitting chips through the blocking dam, and the influence of light emission of other chips is avoided, so that the light emitting effect of the exciting chip is better, the light emitting efficiency is better, the light emitting color is more vivid, and the expected light emitting requirement is met. Meanwhile, the barrier dam can effectively protect the fluorescent powder and the LED light-emitting chips, the service life of the lamp strip is prolonged, and the market requirements are met to a greater extent.

Drawings

Fig. 1 is a schematic structural diagram of a multi-color LED lamp strip provided in the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a multi-color LED lamp strip provided by the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a colorful LED lamp strip provided by the embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and drawings.

Please refer to fig. 1, which illustrates a multi-color LED light strip 100 provided in an embodiment of the present invention, including a substrate 30 and a plurality of LED chips disposed on the substrate, a plurality of the LED chips form at least one light emitting unit 10, each light emitting unit 10 includes a first light emitting chip 11 and a first excitation chip 151, the first excitation chip 151 is covered with a phosphor 16 to emit a predetermined color light, an opaque first blocking dam 17 is disposed between the first excitation chip 151 and the first light emitting chip, the first blocking dam 17 isolates the light of the first light emitting chip 11 outside the first excitation chip so that the first excitation chip is not affected by the first light emitting chip 11.

In a preferred embodiment, each of the light emitting units further includes a second light emitting chip 12 and a plurality of second light emitting chips 151 connected in series to form a second independent circuit. The first blocking dam 17 simultaneously isolates light of the second light emitting chip 12 outside the first excitation chip 151 so that the first excitation chip 151 is not affected by the second light emitting chip 12.

Specifically, the LED chips on the light emitting units are arranged according to a predetermined rule, for example, in a single-row manner, or in two-row manner, or even in a multi-row manner, or the LED chips on each light emitting unit are in a delta shape or other uniformly distributed shape. The plurality of LED chips are coated with an encapsulation adhesive 18, respectively, or coated with an encapsulation adhesive 18 in a direction of a predetermined regular arrangement. The LED chips are arranged on the substrate 30 in a flip-chip structure, and the package adhesive 18 is in a continuous adhesive tape shape extending along the arrangement direction of the plurality of light emitting chips to seal the LED chips, thereby protecting the LED chips.

Specifically, the at least one light emitting unit 10 includes a plurality of light emitting units, the first light emitting chip 11 is a blue light emitting chip, the second light emitting chip 12 is a green light emitting chip, the first excitation chip 151 is a blue light emitting chip or a red light emitting chip, the phosphor on the first excitation chip 151 is excited to emit light of another wavelength or color, and the phosphor excited by a corresponding color is used as needed to find light of a predetermined color. The plurality of first light emitting chips 11 are connected in series to form a first independent circuit, the plurality of second light emitting chips 12 are connected in series to form a second independent circuit, the plurality of first exciting chips 151 are connected in series to form a third independent circuit, the three independent circuits can share one anode or cathode, the other poles of the first independent circuit, the second independent circuit and the third independent circuit are respectively connected to external corresponding polar contacts, three lights of the three independent circuits are combined to form a front-color RGB lamp strip, and a white light bar is formed in practical use.

Furthermore, the colorful LED lamp strip comprises a plurality of sections of luminous strips, and the plurality of sections of luminous strips are continuous and in the shape of a lamp strip and can be wound together. Each segment of the light-emitting strip comprises more than 6 light-emitting units, and the number of the light-emitting units can be 7 or 8, and the like, and is specifically set according to the voltage. Specifically, every section of luminous band both ends have anodal pad 31 and negative pole pad 32 respectively, and every end of every section of luminous band all has a common polarity pad 31a and a plurality of opposite sex pad 31 or 32, and a plurality of opposite sex pads 31 or 32 are different with the polarity of common polarity pad 31a, common polarity pad 31a is anodal pad or negative pole pad, and the one end of every way of independent circuit in the same section of luminous band is connected to common polarity pad 31a jointly and the other end is connected to corresponding opposite sex pad 31 or 32 respectively, and anodal pad and the negative pole pad 2 of every one end all have the cutting indicator line to in order to cut out required lamp strip length.

In the embodiment shown in fig. 1, the common polarity pad 31a is a positive electrode pad 31a, and the opposite electrode pad is a plurality of negative electrode pads 32, so that the positive electrode terminal of each of the independent circuits is commonly connected to the common polarity pad 31a and the negative electrode terminals are respectively connected to the corresponding negative electrode pads 32. Preferably, the voltage across each segment of the light emitting strip is 24V.

Please refer to fig. 2, which shows a multi-color LED lamp strip 200 according to the second embodiment of the present invention, the structure of the LED lamp strip 200 is substantially the same as that of the LED lamp strip 100, the main difference lies in the light emitting units 10a, each light emitting unit 10a further includes a third light emitting chip 14, the third light emitting chip 14 is a red light emitting chip, a plurality of third light emitting chips 14 of the light emitting units are connected in series to form a fourth independent circuit, and at the same time, the phosphor 16 on the first excitation chip 151 emits a first color temperature white light when being excited, so as to form an RGB + W lamp strip.

Please refer to fig. 3, which illustrates a multi-color LED light strip 300 according to a third embodiment of the present invention, wherein the structure of the LED light strip 300 is substantially the same as that of the LED light strip 200, the main difference is that the light emitting unit 10b further includes a second excitation chip 152, the second excitation chip 152 is a blue light chip or a violet light chip, a plurality of second excitation chips 152 of the light emitting units 10b are connected in series to form a fifth independent circuit, and the second excitation chip 152 is covered with phosphor 16 to emit a fifth color light. The phosphors on the second excitation chip 152 are excited to emit light of another wavelength or color, and the phosphors excited corresponding to the color are used to find light of a predetermined color as needed. Be equipped with the second barrier dam 19 of adiacticity between second excitation chip 152 and each other chip, second barrier dam 19 is with the optoisolation of first luminescence chip 11, second luminescence chip 12, third luminescence chip 14 and first excitation chip 151, phosphor powder 16 on the second excitation chip 152 is for receiving the excitation and send the white light of second colour temperature to form RGB + full color temperature lamp strip.

In other embodiments, the first and second firing chips 151 and 152 are alternately aligned in a column or rows, i.e., the first firing chip 151 is aligned in a first row, and then the second firing chip 152 is aligned in a second row. The first light emitting chips and the second light emitting chips are alternately arranged in a column or are respectively arranged in a column, and the third light emitting chips are alternately arranged with the first light emitting chips and the second light emitting chips or are arranged in a column, for example, the first light emitting chips, the second light emitting chips and the third light emitting chips are alternately arranged, and each of the first light emitting chips, the second light emitting chips and the third light emitting chips is close to one first excitation chip 151 and one second excitation chip 152 to form a single light emitting unit, that is, an RGB + full color temperature light emitting unit is formed. In another embodiment, the first, second and third light emitting chips are arranged in a column, respectively, as a third column, a fourth column and a fifth column next to the second excitation chip 152. The first and second excitation chips in the row have a blocking dam therebetween or all the excitation chips are isolated from the light emitting chips by a row of blocking dams, for example, the first and second rows of the first and second excitation chips 152.

In the colorful LED strip 100, each light emitting unit has one or more color lights, wherein the exciting chips 151 and 152 are separated from the light emitting chips by the barrier dam, and are prevented from being affected by the light emission of the other chips, so that the exciting chips have better light emitting effect, better light emitting efficiency and more vivid light emitting color, and meet the expected light emitting requirement. Meanwhile, the barrier dam can effectively protect the fluorescent powder and the LED light-emitting chips, the service life of the lamp strip is prolonged, and the market requirements are met to a greater extent.

Furthermore, each light-emitting unit comprises three or more independent circuits, fluorescent powder is coated on the light-emitting chip of at least one independent circuit, the light-emitting chip and the fluorescent powder are surrounded by the blocking dam, and the fluorescent powder on the light-emitting chip can be excited to emit light with different colors or white light with different color temperatures.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and other changes and modifications can be made by those skilled in the art according to the spirit of the present invention, and these changes and modifications made according to the spirit of the present invention should be included in the scope of the present invention as claimed.

Claims (10)

1. The utility model provides a colorful LED lamp strip, includes the base plate and locates a plurality of LED chips on the base plate, its characterized in that, and is a plurality of the LED chip forms at least one luminescence unit, and every luminescence unit includes first luminescence chip second luminescence chip and first excitation chip, first excitation chip coats and is equipped with phosphor powder in order to send predetermined colour light, first excitation chip and first luminescence chip between be equipped with an adiactinic first barrier dam, first barrier dam is with first luminescence chip optoisolation outside first excitation chip so that first excitation chip does not receive first luminescence chip to influence.

2. The multi-color LED light bar of claim 1, wherein the at least one light-emitting unit comprises a plurality of light-emitting units, a plurality of first light-emitting chips of the plurality of light-emitting units are connected in series to form a first independent circuit, and a plurality of first excitation chips of the plurality of light-emitting units are connected in series to form a third independent circuit.

3. The multi-color LED light bar of claim 2, wherein each light-emitting unit further comprises a second light-emitting chip, a plurality of second light-emitting chips are connected in series to form a second independent circuit, the first light-emitting chip is a blue light chip, the second light-emitting chip is a green light chip or a red light chip or the second light-emitting chip is coated with phosphor powder to emit green light or red light, and the first excitation chip is a blue light chip or a violet light chip.

4. The multi-color LED light bar of claim 1, wherein the LED chips of the plurality of light-emitting units are arranged according to a predetermined rule, and the LED chips are coated with an encapsulating adhesive or coated with a continuous encapsulating adhesive according to a predetermined rule.

5. The multi-color LED light bar of claim 3, wherein each light-emitting unit further comprises a third light-emitting chip, the third light-emitting chip is a red or green light-emitting chip, and a plurality of the third light-emitting chips are connected in series to form a fourth independent circuit.

6. The multi-color LED light bar of claim 5, wherein each light-emitting unit further comprises a second excitation chip, the second excitation chip is a blue chip or a violet chip, a plurality of second excitation chips of the plurality of light-emitting units are connected in series to form a fifth independent circuit, and the second excitation chips are coated with phosphor powder to emit light of a predetermined color.

7. The multi-color LED light bar of claim 6, wherein a second barrier is disposed between the second excitation chip and each of the other chips, and the second barrier optically isolates the first, second, third and first excitation chips.

8. The multi-color LED light bar of claim 7, wherein the phosphors on the first excitation chip are excited to emit white light of a first color temperature, and the phosphors on the second excitation chip are excited to emit white light of a second color temperature.

9. The multi-color LED light bar of claim 8, wherein the first and second excitation chips are alternately arranged in a row or in each row, the first and second light emitting chips are alternately arranged in a row or in each row, the third light emitting chip is alternately arranged with the first and second light emitting chips or in each row, and a blocking dam is provided between the first and second excitation chips in each row or all the excitation chips are isolated from the light emitting chips by a row of blocking dams.

10. The multi-color LED light bar of claim 1, wherein the multi-color LED light bar comprises a plurality of segments, each segment comprising more than 6 light-emitting units; every section luminous band both ends have anodal pad and negative pole pad respectively, and every end of every section luminous band all has a common polarity pad and a plurality of opposite sex pad, and a plurality of opposite sex pads are different with the polarity of common polarity pad, common polarity pad is anodal pad or negative pole pad, and the one end of each way of independent circuit in the same section luminous band is connected to common polarity pad jointly and the other end is connected to corresponding opposite sex pad respectively, and the anodal pad and the negative pole pad of every end all have the instruction line of tailorring to required lamp strip length is convenient for cut out.

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