CN215722609U

CN215722609U - LED lamp bead

Info

Publication number: CN215722609U
Application number: CN202122051445.0U
Authority: CN
Inventors: 胡亮; 刘平; 李德志; 张卫朋
Original assignee: Guang Dong Mason Technologies Co ltd
Current assignee: Guang Dong Mason Technologies Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-01
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses an LED lamp bead, which comprises a support, a light-emitting chip arranged on the support, and an inner colloid wrapping part of the support and containing the light-emitting chip, wherein the colloid comprises a cylindrical part, an arc part and a conical part which are connected, the support part extends into the cylindrical part, the arc part is positioned at one end of the cylindrical part far away from the support, the tip of the conical part is positioned on the axis of the cylindrical part, and the radius of the arc part is larger than that of the cylindrical part. The LED lamp bead provided by the utility model has higher brightness on the premise of having a specific half-value angle so as to meet the use requirement, and the appearance of the colloid of the LED lamp bead is only designed, so that the material cost is not increased.

Description

LED lamp bead

Technical Field

The utility model relates to the technical field of lamps, in particular to an LED lamp bead.

Background

The direct-insert LED lamp is a product widely applied to the fields of household appliances, communication equipment, computers, fire-fighting equipment and the like, and is mainly used for indication and backlight.

The requirements for the direct-plug type LED lamp are mainly larger half-value angle (30-40 degrees) and higher brightness besides reliability, and the half-value angle of the direct-plug type LED lamp is generally in inverse proportion to the value of light intensity, namely the larger the half-value angle is, the smaller the light intensity is. The existing direct-insert LED lamp generally adopts a potting mode to form colloid outside a light-emitting chip to encapsulate the light-emitting chip, the top of the colloid generally has two forms, one is a flat plane or an arc surface, the structure is favorable for realizing a half-value angle of 30-40 degrees, but the light intensity of the direct-insert LED lamp is lower, or a sharp conical surface or an arc surface is adopted, the structure can effectively improve the light intensity of the direct-insert LED lamp, but is not favorable for realizing the half-value angle of 30-40 degrees. Therefore, an LED lamp bead with high brightness at a specific half-value angle is needed.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: provided is an LED lamp bead with high brightness under a specific half-value angle.

In order to solve the technical problems, the utility model adopts the technical scheme that: an LED lamp bead comprises a support, a light-emitting chip arranged on the support, and a wrapping part, wherein the support contains the light-emitting chip in an inner colloid, the colloid comprises a cylindrical part, an arc-shaped part and a conical part which are connected, the support part extends into the cylindrical part, the arc-shaped part is positioned at one end, far away from the support, of the cylindrical part, the tip end of the conical part is positioned on the axis of the cylindrical part, and the radius of the arc-shaped part is larger than that of the cylindrical part.

Further, the conical part is conical, and a generatrix of the conical part is tangent to the arc-shaped part.

Further, the side surface of the conical part is an arc surface which is concave towards the inner side of the conical part, and the radius of the arc surface is smaller than that of the arc part.

Further, the radius of cambered surface is 0.5mm, the radius of arc portion is 2mm, the radius of cylinder portion is 1.5 mm.

Further, the half-value angle of the LED lamp bead is 30-40 degrees.

Further, the support comprises a bowl-shaped part, and the light emitting chip is located in the bowl-shaped part and wrapped by the colloid.

Furthermore, the colloid is made of epoxy resin.

The utility model has the beneficial effects that: according to the LED lamp bead provided by the utility model, the arc-shaped part is arranged on the colloid, so that the LED lamp bead has a larger half-value angle, the conical part is arranged at the top of the colloid to collect light, so that the LED lamp bead has higher brightness, the LED lamp bead has higher brightness on the premise of having a specific half-value angle, the use requirement is met, and the appearance of the colloid of the LED lamp bead is only designed, so that the material cost is not increased.

Drawings

Fig. 1 is a schematic structural diagram of an LED lamp bead according to a first embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural diagram of an LED lamp bead according to a second embodiment of the present invention;

fig. 4 is an enlarged view at B in fig. 3.

Description of reference numerals:

1. a support; 11. a bowl-shaped part; 2. a light emitting chip; 3. a colloid; 31. a cylindrical portion; 32. an arc-shaped portion; 33. a tapered portion; 34. and (4) cambered surface.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 4, an LED lamp bead includes a support 1, a light emitting chip 2 disposed on the support 1, and an encapsulant 3 wrapping a portion of the support 1 and accommodating the light emitting chip 2, where the encapsulant 3 includes a cylindrical portion 31, an arc portion 32, and a tapered portion 33 connected to each other, the support 1 partially extends into the cylindrical portion 31, the arc portion 32 is located at an end of the cylindrical portion 31 away from the support 1, a tip of the tapered portion 33 is located on an axis of the cylindrical portion 31, and a radius of the arc portion 32 is greater than a radius of the cylindrical portion 31.

From the above description, the beneficial effects of the present invention are: the LED lamp bead provided by the utility model has higher brightness on the premise of having a specific half-value angle so as to meet the use requirement, and the appearance of the colloid 3 of the LED lamp bead is only designed, so that the material cost is not increased.

Further, the tapered portion 33 has a conical shape, and a generatrix of the tapered portion 33 is tangent to the arc portion 32.

As can be seen from the above description, the tapered portion 33 may be set to be a sharp corner to converge the light generated by the light emitting chip 2, so as to improve the brightness of the LED lamp bead.

Further, the side surface of the tapered portion 33 is an arc surface 34 recessed inward of the tapered portion 33, and the radius of the arc surface 34 is smaller than that of the arc portion 32.

As can be seen from the above description, the side surface of the tapered portion 33 may be provided with an arc surface 34 recessed towards the inner side of the tapered portion 33, and the radius of the arc surface 34 is smaller than that of the arc portion 32, so as to converge the light generated by the light emitting chip 2 to realize high brightness of the LED lamp bead.

Further, the radius of the arc surface 34 is 0.5mm, the radius of the arc portion 32 is 2mm, and the radius of the cylindrical portion 31 is 1.5 mm.

From the above description, it can be known that the radii of the cylindrical portion 31, the arc portion 32 and the arc surface 34 can be selected as required, so that the LED lamp bead has a specific half-value angle and high brightness.

Further, the half-value angle of the LED lamp bead is 30-40 degrees.

From the above description, the half-value angle of the LED lamp bead reaches 30 ° -40 ° by the design of the arc portion 32, so that the light emitted by the LED lamp bead has a suitable radiation range to meet the use requirement.

Further, the bracket 1 includes a bowl-shaped portion 11, the light emitting chip 2 is located in the bowl-shaped portion 11, and the colloid 3 wraps the bowl-shaped portion 11.

From the above description, set up the bowl form portion 11 that is used for fixed luminescent chip 2 positions on support 1 to make LED lamp pearl packaging process in-process colloid 3 wrap up luminescent chip 2 smoothly.

Further, the material of the colloid 3 is epoxy resin.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: an LED lamp bead is installed in household appliances, communication equipment, computers, fire-fighting equipment and other equipment and used for indicating and backlighting.

As shown in fig. 1, the LED lamp bead includes a support 1, a light emitting chip 2 disposed on the support 1 and a colloid 3 wrapping the support 1, the light emitting chip 2 is accommodated in the colloid 3, and when the LED lamp bead works, the light emitting chip 2 emits light and the light passes through the colloid 3 to enter the external environment, so as to play a role of indication or backlight.

Specifically, the colloid 3 includes a cylindrical portion 31, an arc portion 32 and a tapered portion 33, which are connected in sequence, wherein the support 1 partially extends into the cylindrical portion 31, the cylindrical portion 31 wraps the light emitting chip 2, the arc portion 32 is located at one end of the cylindrical portion 31 away from the support 1, the radius of the arc portion 32 is larger than that of the cylindrical portion 31, so that light generated by the light emitting chip 2 reaches the top end of the arc portion 32 and is collected under the action of the arc portion 32, so as to adjust the half-value angle of the LED lamp bead to a proper range, the tapered portion 33 is located at one end of the arc portion 32 away from the cylindrical portion 31, the tip of the tapered portion 33 is located on the axis of the cylindrical portion 31, and part of the light generated by the light emitting chip 2 passes through the cylindrical portion 31 and the arc portion 32 and enters the tapered portion 33 and is collected under the action of the tapered portion 33, the brightness of the top end of the LED lamp bead is improved, so that the LED lamp bead has higher brightness on the premise of meeting the requirement on the half-value angle, and the use requirement is met.

In this embodiment, the radius of the cylindrical portion 31 is 1.5mm, and the radius of the arc portion 32 is 2mm, so that the half-value angle of the LED lamp bead reaches 30-40 °.

Referring to fig. 2, in the present embodiment, the tapered portion 33 is conical, and a generatrix of the tapered portion 33 is tangent to the arc portion 32, so that the tapered portion 33 is smoothly connected to the arc portion 32, the brightness of the LED lamp bead is improved without changing the material of the colloid 3, and the material cost of the LED lamp bead is not increased.

As shown in fig. 1, in order to facilitate production of the LED lamp bead, a bowl-shaped portion 11 for accommodating the light emitting chip 2 is disposed on the bracket 1, the light emitting chip 2 is fixed in the bowl-shaped portion 11, the colloid 3 wraps the bowl-shaped portion 11, and one end of the bracket 1 having the bowl-shaped portion 11 extends into the colloid 3, so that the colloid 3 completely wraps the light emitting chip 2.

In detail, the colloid 3 is made of epoxy resin, so that the visual effect of the LED lamp bead is improved. In the process of producing the LED lamp bead, epoxy resin is encapsulated on the support 1 to form the colloid 3, and then the encapsulation of the LED lamp bead can be completed.

Example two

Referring to fig. 3 and 4, the second embodiment of the present invention provides another technical solution for the structure of the colloid 3 based on the first embodiment, which is different from the first embodiment only in the structure of the colloid 3.

Referring to fig. 3 and 4, in this embodiment, the side surface of the tapered portion 33 of the colloid 3 is an arc surface 34, the arc surface 34 is recessed toward the inner side of the tapered portion 33, and the radius of the arc surface 34 is smaller than the radius of the arc portion 32, so as to form a tip on the top of the tapered portion 33, and the arc surface 34 is smoothly connected with the arc portion 32, so as to improve the brightness of the LED lamp bead without changing the material used for the colloid 3, and the material cost of the LED lamp bead is not increased.

In summary, the colloid of the LED lamp bead provided by the present invention adopts a structural form of a cylindrical portion, an arc portion and a conical portion which are connected, wherein the radius of the arc portion is greater than the radius of the cylindrical portion to adjust the half-value angle of the LED lamp bead, so that the half-value angle of the LED lamp bead is within 30 ° to 40 °, and the conical portion arranged at the top end of the colloid collects light generated by the light emitting chip, thereby improving the brightness at the top end of the LED lamp bead, so that the LED lamp bead has high brightness on the premise of having a specific half-value angle, so as to meet the use requirement.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a LED lamp pearl, includes the support and sets up luminous chip on the support, its characterized in that: the LED lamp further comprises a colloid which wraps part of the support and contains the light-emitting chip, wherein the colloid comprises a cylindrical part, an arc part and a conical part which are connected, the support part extends into the cylindrical part, the arc part is positioned at one end, far away from the support, of the cylindrical part, the tip end of the conical part is positioned on the axis of the cylindrical part, and the radius of the arc part is larger than that of the cylindrical part.

2. The LED lamp bead of claim 1, wherein: the conical part is conical, and a generatrix of the conical part is tangent to the arc-shaped part.

3. The LED lamp bead of claim 1, wherein: the side of the conical part is an arc surface which is concave towards the inner side of the conical part, and the radius of the arc surface is smaller than that of the arc part.

4. The LED lamp bead of claim 3, wherein: the radius of cambered surface is 0.5mm, the radius of arc portion is 2mm, the radius of cylinder portion is 1.5 mm.

5. The LED lamp bead of claim 1, wherein: the half-value angle of the LED lamp bead is 30-40 degrees.

6. The LED lamp bead of claim 1, wherein: the support includes bowl form portion, the luminescence chip is located just the colloid parcel in the bowl form portion.

7. The LED lamp bead of claim 1, wherein: the colloid is made of epoxy resin.