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CN-224218772-U - LED SMD luminous tube

CN224218772UCN 224218772 UCN224218772 UCN 224218772UCN-224218772-U

Abstract

The utility model discloses an LED SMD luminous tube which comprises a luminous chip component, an inner shell and an outer shell, wherein the outer shell is provided with a groove for accommodating the inner shell, the outer shell is black in color, the inner shell is provided with a plurality of cavities with upward openings, and the cavities are used for accommodating the luminous chip component, and the colors of the inner shell and the outer shell are different from each other. In the utility model, the color separation design is carried out on the inner shell and the outer shell, the black color of the outer shell reduces the reflection, the contrast of the display screen is improved, the inner shell is of a color different from that of the outer shell, the light reflection efficiency is improved, the light emitting brightness of the light emitting chip is improved, and meanwhile, the nesting structure of the inner shell and the outer shell strengthens the whole air tightness and the mechanical strength of the package. In addition, the light-emitting chip assembly can comprise two red chips connected in series, and the two red chips can improve the brightness of the red chips by multiple levels after being connected in series, so that the color matching and energy saving of pixels are facilitated.

Inventors

  • LI XIAOJIE

Assignees

  • 李枭杰

Dates

Publication Date
20260508
Application Date
20250516

Claims (10)

  1. 1. The utility model provides a LED SMD luminotron, its characterized in that, includes luminous chip subassembly, inner shell body and shell body, the shell body has been seted up and has been used for the holding the recess of inner shell body, the colour of outer shell body is black, the colour of inner shell body is white, the inner shell body is equipped with a plurality of openings ascending cavitys, the cavity is used for the holding luminous chip subassembly.
  2. 2. The LED SMD light emitting tube of claim 1, further comprising an electrode holder including a first electrode pad and a plurality of second electrode pads, said first electrode pad and said second electrode pad being at least partially located in said cavity, at least partially extending outwardly through said inner and outer housings to extend beyond said outer housing to form a weld leg.
  3. 3. The LED SMD light emitting tube of claim 2, wherein said first electrode pad comprises a first pole piece portion, a second pole piece portion and a third pole piece portion, said first pole piece portion is stepped, said second pole piece portion and said third pole piece portion are respectively disposed on two sides of said first pole piece portion, and said second pole piece portion and said third pole piece portion are respectively extended from two ends of said first pole piece portion.
  4. 4. The LED SMD light emitting tube of claim 1, wherein said outer housing is comprised of black polyphthalamide and said inner housing is comprised of polyphthalamide.
  5. 5. The LED SMD light emitting tube of claim 2, wherein said number of cavities is three, said three cavities being arranged side by side in a horizontal first direction, and said cavities having a cross section that increases progressively upwards in a vertical direction.
  6. 6. The LED SMD light emitting tube of claim 5, wherein said light emitting chip assembly is an RGB three color chip, said three color chips being located within three of said cavities, respectively.
  7. 7. The LED SMD light emitting tube of claim 6, wherein at least one of said RGB three color chips is mounted on said first electrode pad.
  8. 8. The LED SMD light emitting tube of claim 6, wherein said RGB three-color chips have two red chips, one of said red chips is located on said first electrode pad, the other red chip is located on said second electrode pad, and said two red chips are symmetrically arranged with respect to a horizontal first direction as an axis of symmetry.
  9. 9. The LED SMD light emitting tube of claim 1, wherein said outer housing includes two baffles disposed on a separator of said inner housing.
  10. 10. The LED SMD light emitting tube of claim 1, further comprising a sealing gel, said sealing gel covering said light emitting chip assembly.

Description

LED SMD luminous tube Technical Field The utility model relates to the technical field of LED (light-emitting diode) lighting, in particular to an LED SMD (surface mounted device) lighting tube. Background Along with the rapid development of the LED display technology, LED SMDs (Surface Mount light Emitting diodes) are widely used in the field of indoor and outdoor display screens due to their small size, high density mounting capability and excellent display effect. Particularly, under the background of increasing demands of small-space LED display screens, the black LED SMD luminous tube becomes an important technical direction for improving the display image quality due to the characteristics of high contrast and low reflection. At present, a mode of replacing black injection molding glue materials in a traditional white LED SMD support mold is generally adopted in the industry to prepare a black LED SMD luminous tube. However, the technology has some defects, such as insufficient brightness and poor light transmittance of the black glue, so that the brightness of the black LEDs of the same type is only 1/2-1/3 of that of the white glue. In order to meet the brightness requirement in the outdoor environment, the driving current is required to be increased, so that the power consumption is increased, the chip is overheated, the light attenuation is accelerated, and the service life of the display screen is shortened. Disclosure of utility model The utility model aims to solve the technical problem of providing an LED SMD luminous tube so as to solve the problem that the existing black LED SMD luminous tube is poor in light transmittance. In order to solve the technical problems, the LED SMD luminous tube comprises a luminous chip component, an inner shell and an outer shell, wherein the outer shell is provided with a groove for accommodating the inner shell, the outer shell is black, the inner shell is provided with a plurality of cavities with upward openings, the cavities are used for accommodating the luminous chip component, and the colors of the inner shell and the outer shell are different from each other. Further, in the LED SMD luminous tube of the present utility model, the LED SMD luminous tube further includes an electrode holder, the electrode holder includes a first electrode plate and a plurality of second electrode plates, the first electrode plate and the second electrode plates are at least partially located in the cavity, and at least partially extend outwards through the inner housing and the outer housing so as to extend out of the outer housing to form a welding pin. Further, in the LED SMD luminous tube according to the present utility model, the first electrode sheet includes a first pole piece portion, a second pole piece portion and a third pole piece portion, the first pole piece portion is in a step shape, the second pole piece portion and the third pole piece portion are respectively disposed at two sides of the first pole piece portion, and the second pole piece portion and the third pole piece portion respectively extend from two ends of the first pole piece portion. In the LED SMD luminous tube of the present utility model, the outer housing is made of black polyphthalamide, and the inner housing is made of white polyphthalamide. Further, in the LED SMD luminous tube according to the present utility model, the number of the cavities is three, the three cavities are arranged side by side along the horizontal first direction, and the cross sections of the cavities gradually increase upwards along the vertical direction. Further, in the LED SMD luminous tube of the present utility model, the luminous chip component is an RGB three-color chip, and the three-color chips are respectively located in the three cavities. Further, in the LED SMD luminous tube according to the present utility model, at least one of the chips of each color of the RGB three-color chips is fixed on the first electrode sheet. Further, in the LED SMD luminous tube according to the present utility model, the number of red chips in the RGB three-color chips is two, one of the red chips is located on the first electrode plate, the other one of the red chips is located on the second electrode plate, and the two red chips are symmetrically arranged with the horizontal first direction as a symmetry axis. Further, in the LED SMD luminous tube according to the present utility model, the outer case includes two baffles, and the two baffles are correspondingly disposed on the partition plate of the inner case. Further, in the LED SMD luminous tube of the present utility model, the LED SMD luminous tube further includes a sealing colloid, and the sealing colloid covers the luminous chip assembly. The LED SMD luminous tube has the beneficial effects that the LED SMD luminous tube is provided, the packaging structure of the LED SMD luminous tube is divided into the inner shell and the outer shell, the inner shell and th