CN219759612U

CN219759612U - LED support

Info

Publication number: CN219759612U
Application number: CN202320912664.XU
Authority: CN
Inventors: 谢杏星; 谢宗贤; 汪仁凯; 林远彬; 赵强
Original assignee: Hubei Xinying Photoelectric Co ltd
Current assignee: Hubei Xinying Photoelectric Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-09-26
Anticipated expiration: 2033-04-21

Abstract

The utility model relates to an LED support, comprising: a substrate; the lower part of the reflecting cup is provided with a mounting through hole, the upper part of the reflecting cup is provided with a light transmission hole, the mounting through hole is communicated with the light transmission hole, the aperture of the light transmission hole is smaller than that of the mounting through hole, and the lower part of the reflecting cup is connected with the substrate to form an accommodating space; the lamp bead is arranged on the substrate, the lamp bead penetrates through the installation through hole to extend into the accommodating space, and light emitted by the lamp bead can penetrate through the light-transmitting opening. Because the aperture of the installation through hole is larger than the light transmission hole, the lamp bead can be conveniently covered outside the lamp bead so that the lamp bead is accommodated in the accommodating space, light rays emitted by the lamp bead can be reflected in the reflecting cup and finally emitted to the light transmission hole communicated with the installation through hole, and the light rays are transmitted out from the small-aperture side, so that the light condensation effect can be improved. Therefore, the LED bracket with better light condensing effect is provided.

Description

LED support

Technical Field

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

Background

At present, common patch type LED devices in the market comprise a TOP LED and a CHIP LED, and brackets used by the TOP LED and the CHIP LED are respectively a TOP bracket structure and a PCB circuit board.

The TOP LED support structure is provided with a reflecting cup structure formed integrally, and the light emitted by the lamp beads can be collected by the reflecting cup through arranging the lamp beads at the bottom of the reflecting cup, so that the light gathering effect is improved.

However, because the reflecting cup and the bracket main body are integrally injection molded, the inclination angle of the cup wall of the reflecting cup is actually determined by the demolding angle of the injection molding mechanism, so that the existing reflecting cup is of a structure with gradually increased openings, the gathering effect of the reflecting cup on the light rays of the lamp beads is required to be improved, and particularly when the light quantity of the lamp beads is small, the brightness of the existing LED bracket is difficult to meet the requirements of customers.

Disclosure of Invention

The embodiment of the utility model provides an LED bracket, which aims to solve the problem of poor condensation effect of a reflecting cup in the related art.

In a first aspect, there is provided an LED support comprising: a substrate; the lower part of the reflecting cup is provided with a mounting through hole, the upper part of the reflecting cup is provided with a light transmission hole, the mounting through hole is communicated with the light transmission hole, the aperture of the light transmission hole is smaller than that of the mounting through hole, and the lower part of the reflecting cup is connected with the substrate to form an accommodating space; the lamp bead is arranged on the substrate, the lamp bead penetrates through the installation through hole to extend into the accommodating space, and light emitted by the lamp bead can penetrate through the light-transmitting opening.

In some embodiments, the reflective cup comprises a cup body, and a light reflecting layer is arranged on the inner wall of the cup body.

In some embodiments, the light reflective layer is coated on an inner wall of the cup.

In some embodiments, the material of the cup is ceramic, BT resin, or FR4.

In some embodiments, the inner wall of the cup body encloses a light-emitting channel, wherein the inner wall of the lower part of the cup body is a light-reflecting section provided with a light-reflecting layer, the inner wall of the upper part of the cup body is a light-guiding section not provided with the light-reflecting layer, the light-guiding section is connected with the light-reflecting section, one end of the light-guiding section away from the light-reflecting section encloses the light-transmitting opening, and one end of the light-reflecting section away from the light-guiding section encloses the mounting through hole; the radial size of the area surrounded by the light reflecting section is larger than that of the area surrounded by the light guiding section.

In some embodiments, the radial dimension of the area surrounded by the light reflecting section gradually decreases along the direction away from the lamp bead.

In some embodiments, the reflective cup is connected to the substrate through a lamination adhesive layer.

In some embodiments, the reflective cup is filled with an encapsulant connecting the reflective cup and the substrate.

In some embodiments, the encapsulant is wrapped outside the lamp beads and connected to the substrate.

In some embodiments, the inner wall of the reflecting cup gradually contracts toward the center of the reflecting cup along a direction away from the lamp bead, and the center of the light transmitting opening coincides with the center of the reflecting cup.

The technical scheme provided by the utility model has the beneficial effects that:

compared with a support structure which is manufactured integrally, the LED support provided by the embodiment of the utility model has the advantages that the opening angle direction of the reflecting cup can be set to be a structure with gradually reduced opening, the lower part of the reflecting cup is covered outside the lamp beads, the aperture of the mounting through hole is larger than that of the light transmitting hole, the mounting through hole can be covered outside the lamp beads more conveniently, so that the lamp beads are contained in the containing space, light rays emitted by the lamp beads can be reflected in the reflecting cup and finally emitted to the light transmitting hole communicated with the mounting through hole, and the light rays are transmitted from the small aperture side, so that the light gathering effect can be improved. Compared with the prior art that the small opening end is close to the lamp bead, and the large opening end faces to the outer side, the LED lamp has better light-gathering effect, and when the brightness of the lamp bead is insufficient, the LED lamp can also improve the luminous brightness through the better light-gathering effect of the reflecting cup. And the light-transmitting opening is arranged as a small opening, so that the area of the inner side surface of the reflecting cup seen by the outside can be reduced, the front black occupation ratio is increased, and the contrast ratio is improved. Therefore, the LED bracket with better light condensing effect is provided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic cross-sectional structure of an LED support according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional structure diagram of another LED support according to an embodiment of the present utility model.

In the figure:

1. a substrate;

2. a lamp bead;

3. a reflective cup; 31. a light transmission port; 32. a cup body; 33. a light reflection layer; 34. a light-emitting channel; 341. a light reflecting section; 342. a light guide section;

4. and (5) laminating the adhesive layer.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model provides an LED bracket which can solve the problem of poor condensation effect of a reflecting cup in the related art.

Referring to fig. 1, an LED support according to an embodiment of the present utility model includes: a substrate 1; the lower part of the reflecting cup 3 is provided with a mounting through hole, the upper part of the reflecting cup 3 is provided with a light transmission hole 31, the mounting through hole is communicated with the light transmission hole 31, the aperture of the light transmission hole 31 is smaller than that of the mounting through hole, and the lower part of the reflecting cup 3 is connected with the substrate 1 to form an accommodating space; the lamp bead 2, the lamp bead 2 install in base plate 1, just the lamp bead 2 passes the installation through-hole stretches into in the accommodation space, the light of lamp bead 2 emission can pass the light-transmitting opening 31.

By providing the substrate 1 separately from the reflecting cup 3, the shape of the reflecting cup 3 is not limited by the substrate 1. The reflecting cup 3 can be conveniently arranged into two openings with different sizes, the lower part provided with the mounting through hole is covered outside the lamp bead 2, the lamp bead 2 can be conveniently contained in the containing space, and light is emitted by utilizing the light transmitting port 31 of the mounting through hole, wherein the aperture of the light transmitting port 31 is smaller than the mounting through hole, and the light gathering effect on the lamp bead 2 can be improved. Compared with the integrated injection molding of the substrate 1 and the reflecting cup 3, the utility model can improve the light condensing effect on the lamp beads 2 and improve the actual brightness of the lamp beads 2 with small luminous quantity. In this embodiment, the diameter of the reflecting cup 3 is uniformly changed from large to small, and in other embodiments, a stepped hole may be formed in the reflecting cup 3, so long as the light can be reflected to the light transmitting hole 31 with a small aperture. And by setting the light-transmitting opening 31 to a small aperture, the area of the reflecting surface on the inner side of the reflecting cup 3 seen from the outside can be reduced, the front black occupancy ratio can be increased, and the contrast can be improved.

Referring to fig. 1 and 2, in some alternative embodiments, the reflective cup 3 includes a cup body 32, and a light reflecting layer 33 is disposed on an inner wall of the cup body 32. In this embodiment, the light reflection layer 33 is formed using a silver-white paint, and in other embodiments, the light reflection layer 33 may be formed using a white paint. Since the cup 32 has more material choices by providing the light reflecting layer 33 on the inner wall of the cup 32. In this embodiment, the cup body 32 is made of ceramic, BT resin or FR4 material, and the ceramic material has better mechanical properties; the BT material is synthesized by bismaleimide and cyanate resin, and has better dielectric property, low thermal expansion rate and good mechanical characteristics. FR4 is a material specification that the resin material must be able to self-extinguish when in a burning state, and FR4 material can provide good flame-retardant properties. The cup 32 may be set to a dark color to reduce the light crosstalk of the finished LED.

Referring to fig. 1 and 2, in some alternative embodiments, the light reflective layer 33 is coated on the inner wall of the cup 32. By forming the light reflecting layer 33 by coating the reflective coating on the inner wall of the cup body 32, the light reflecting layer 33 and the cup body 32 can be firmly connected. And the process of the light reflecting layer 33 is also simpler. In other embodiments, the light reflecting layer 33 may be manufactured separately, and the light reflecting layer 33 may be mounted on the inner wall of the cup 32, where the light reflecting layer 33 may be connected to the cup 32 by adhesion, clamping, or the like.

In some alternative embodiments, the material of the cup 32 is ceramic, BT resin, or FR4. By using ceramic material, BT resin or FR4 material for the cup 32, the cup 32 has good mechanical characteristics, and the service life of the cup 32 is prolonged.

In order to be able to enhance the condensing effect of the reflector cup even further, reference is made to fig. 2. The inner wall of the cup body 32 encloses a light-emitting channel 34, wherein the inner wall of the lower part of the cup body 32 is a light-reflecting section 341 provided with a light-reflecting layer 33, the inner wall of the upper part of the cup body 32 is a light-guiding section 342 not provided with the light-reflecting layer 33, the light-guiding section 342 is connected with the light-reflecting section 341, one end of the light-guiding section 342 far away from the light-reflecting section 341 encloses the light-transmitting opening 31, and one end of the light-reflecting section 341 far away from the light-guiding section 342 encloses the mounting through hole; the radial dimension of the area surrounded by the light reflecting section 341 is greater than the radial dimension of the area surrounded by the light guiding section 342.

Compared to the embodiment provided in fig. 1 in which the light reflecting layer 33 is provided on the entire inner wall of the cup 32, the embodiment of fig. 2 provides a solution in which the light reflecting layer 33 is provided only in the bottom area of the cup 32, since the light guiding section 342 at the upper portion of the cup 32 is not provided with the light reflecting layer 33, and the radial dimension of the area surrounded by the light guiding section 342 is smaller than the radial dimension of the area surrounded by the light reflecting section 341, when a user views the inside of the cup 32 through the light transmitting port 31, the light reflecting layer 33 mounted by the light reflecting section 341 is not seen by the restriction of the light guiding section 342. The front black duty ratio is increased, and the contrast ratio is improved. And the amount of the light reflecting layer 33 is reduced. In this embodiment, the light reflecting segment 341 has a tapered structure, and in other embodiments, the light reflecting segment 341 may have other shapes with a larger aperture than the light guiding segment 342, for example, the light reflecting segment 341 is configured as a hemispherical shape or a spherical shape.

In some alternative embodiments, as shown in fig. 2, the radial dimension of the area surrounded by the light-reflecting segment 341 gradually decreases in a direction away from the lamp bead 2. By gradually reducing the aperture of the light reflecting segment 341 along the direction away from the lamp bead 2, the light can be guided to be converged at the light guiding segment 342 by the light reflecting segment 341. The probability of light collection in the light guide section 342 by the lamp beads 2 is improved.

Referring to fig. 1 and 2, in some alternative embodiments, the reflective cup 3 is connected to the substrate 1 through a lamination adhesive layer 4. That is, the colloid is arranged between the substrate 1 and the reflective cup 3, the lamination adhesive layer 4 and the substrate 1 are connected in a lamination manner, so that the connection strength of the substrate 1 and the reflective cup 3 is improved, and the lamination connection manner can reduce the pores between the substrate 1 and the reflective cup 3 and reduce the light leakage probability. In the embodiment, the lamination adhesive layer 4 is an epoxy adhesive, has good toughness, moisture resistance and sealing performance, and has good chemical stability and good electrical insulation property after hardening.

Referring to fig. 1 and 2, in some alternative embodiments, the reflective cup 3 is filled with an encapsulant that connects the reflective cup 3 and the substrate 1. That is, the contact area of the reflecting cup 3 with the substrate 1 is increased by connecting the cup wall of the reflecting cup 3 with the substrate 1 through the encapsulant, compared with connecting only the end surface of the reflecting cup 3 with the substrate 1. The strength of the connection between the substrate 1 and the reflecting cup 3 is improved. Because the big mouth end of the reflecting cup 3 is connected with the substrate 1, the small mouth end of the reflecting cup 3 is positioned at one side far away from the lamp beads 2, and the packaging colloid filled in the reflecting cup 3 can be contained in the cavity formed by the reflecting cup 3 under the limit of the small mouth end, so that the probability that the packaging colloid falls off from the reflecting cup 3 is reduced.

In some embodiments, the encapsulant is wrapped around the lamp beads 2 and connected to the substrate 1. The lamp bead 2 is wrapped by the packaging colloid, so that the connection strength of the lamp bead 2 and the substrate 1 can be improved, and the air tightness of the lamp bead 2 is enhanced.

In some alternative embodiments, as shown in fig. 1, the inner wall of the reflective cup 3 gradually contracts toward the center of the reflective cup 3 in a direction away from the lamp bead 2, and the center of the light-transmitting opening 31 coincides with the center of the reflective cup 3. By gradually shrinking the inner wall of the reflecting cup 3 in the center, a conical light-emitting channel 34 is formed, and compared with other special-shaped reflecting cups 3, the manufacturing difficulty of the reflecting cup 3 is reduced, and the reflecting cup 3 can be manufactured at lower cost.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An LED support, comprising:

a substrate (1);

the reflecting cup (3), the lower part of the reflecting cup (3) is provided with a mounting through hole, the upper part of the reflecting cup (3) is provided with a light transmission opening (31), the mounting through hole is communicated with the light transmission opening (31), the aperture of the light transmission opening (31) is smaller than that of the mounting through hole, and the lower part of the reflecting cup (3) is connected with the substrate (1) to form an accommodating space;

the lamp bead (2), lamp bead (2) install in base plate (1), just lamp bead (2) pass the installation through-hole stretches into in the accommodation space, the light of lamp bead (2) emission can pass light-transmitting port (31).

2. The LED support as set forth in claim 1, wherein:

the reflection cup (3) comprises a cup body (32), and a light reflection layer (33) is arranged on the inner wall of the cup body (32).

3. The LED support as set forth in claim 2, wherein:

the light reflecting layer (33) is coated on the inner wall of the cup body (32).

4. The LED support as set forth in claim 2, wherein:

the cup body (32) is made of ceramic, BT resin or FR4.

5. The LED support as set forth in claim 2, wherein:

the inner wall of the cup body (32) encloses a light-emitting channel (34), wherein the inner wall of the lower part of the cup body (32) is a light reflecting section (341) provided with a light reflecting layer (33), the inner wall of the upper part of the cup body (32) is a light guiding section (342) not provided with the light reflecting layer (33), the light guiding section (342) is connected with the light reflecting section (341), one end of the light guiding section (342) far away from the light reflecting section (341) encloses the light-transmitting opening (31), and one end of the light reflecting section (341) far away from the light guiding section (342) encloses the mounting through hole;

the radial size of the area surrounded by the light reflecting section (341) is larger than that of the area surrounded by the light guiding section (342).

6. The LED cradle of claim 5, wherein:

the radial size of the area surrounded by the reflecting section (341) gradually reduces along the direction away from the lamp bead (2).

7. The LED support as set forth in claim 1, wherein:

the reflecting cup (3) is connected with the substrate (1) through a laminating adhesive layer (4).

8. The LED support as set forth in claim 1, wherein:

the reflective cup (3) is filled with packaging colloid for connecting the reflective cup (3) and the substrate (1).

9. The LED cradle of claim 8, wherein:

the packaging colloid is wrapped outside the lamp beads (2) and is connected with the substrate (1).

10. The LED support as set forth in claim 1, wherein:

the inner wall of the reflecting cup (3) gradually contracts towards the center of the reflecting cup (3) along the direction away from the lamp beads (2), and the center of the light transmitting opening (31) coincides with the center of the reflecting cup (3).