CN221958750U - A LED point light source and light strip with back glue filling - Google Patents

Abstract

The utility model relates to the technical field of light sources, specifically a LED point light source and light strip with glue filling on the back, the LED point light source comprising: a lamp housing, a plurality of lamp cavities are provided on the inner upper wall of the lamp housing, the upper part of the lamp cavity is a lens; a bottom cover, the bottom cover is fixedly connected to the bottom of the lamp housing, and at least one glue filling hole is provided on the bottom cover; a PCBA board, the PCBA board is located between the lamp housing and the bottom cover, and a wire, the wire is electrically connected to the PCBA board. The utility model is provided with a lens, and the lamp housing and the lens are integrated. The lens is higher than the upper surface of the lamp housing, so that the light output angle is larger, and the lens can be made into a polarized lens to meet various optical application requirements of customers. By arranging the lamp beads in the lamp cavity, the light-emitting surface is not covered with glue, and the lamp housing and the bottom cover are spliced, and the glue filling holes on the back of the bottom cover are used to fill the glue to fully seal and waterproof, which helps to reduce light loss and improve light efficiency.

Description

A LED point light source and light strip with back glue filling

Technical Field

The utility model relates to the technical field of light sources, in particular to an LED point light source and a light strip with glue poured on the back.

Background Art

LED (light-emitting diode) point light sources are generally used in architectural or municipal lighting. Their structure generally includes a PCBA (Printed Circuit Board Assembly) board on which LED chips are installed, a base to fix the circuit board, and a transparent cover body that is used to cover the circuit board and is used to emit light from the LED chips. Usually, the interior of the LED point light source is a waterproof and sealed structure.

LED point light sources on the market generally use the following two methods of glue filling as a sealing solution: 1. Front glue filling method; 2. Back glue filling method. Among them, the waterproof level of the front glue filling method is not high, and the waterproof level can only reach IP65; and the back glue filling method can only use transparent glue to fill the LED point light source, and the glue directly covers the lamp beads, which causes serious light loss of the lamp beads, affecting the luminous effect and light color; in the back glue filling method structure of the LED point light source, the structure between the waterproof lamp shell and the bottom cover generally adopts a staggered superposition method, and water will directly penetrate into the lamp shell along the surface of the lamp shell, and cannot effectively reach the IP67 waterproof level; the PCBA board of the LED point light source can only be installed by using the bottom cover column to press the PCBA board to prevent glue from entering the inner capsule of the lamp beads. If the bottom cover is deformed, the glue will penetrate into the inner capsule of the lamp beads and cover the lamp beads, affecting the luminous effect.

Utility Model Content

The purpose of the utility model is to provide a LED point light source and a light strip with glue filling on the back, so as to at least solve one of the problems raised in the above background technology.

The technical solution of the utility model is:

A back-filled LED point light source and light strip, comprising:

A lamp housing, wherein a plurality of lamp cavities are formed on the upper wall surface of the lamp housing, and a lens is formed on the upper part of the lamp cavity;

A bottom cover, the bottom cover is fixedly connected to the bottom of the lamp housing, and at least one glue injection hole is opened on the bottom cover;

A PCBA board, wherein the PCBA board is located between the lamp housing and the bottom cover, the upper surface of the PCBA board is tightly connected to the lower surface of the lamp cavity, a glue filling cavity is formed between the PCBA board and the bottom cover, the glue filling cavity is connected to the glue filling hole, and a plurality of lamp beads are electrically connected to the upper surface of the PCBA board, and each of the lamp beads is located in a lamp cavity;

A wire is electrically connected to the PCBA board, and the wire passes through between the lamp housing and the bottom cover.

Furthermore, the lens and the lamp housing are integrally formed, and the lens is higher than an upper surface of the lamp housing.

Furthermore, ultrasonic lines are arranged at four corners of the bottom cover.

Furthermore, a plurality of positioning members are arranged around the lamp cavity in the lamp housing, and a chamfer is arranged on the upper portion of each positioning member.

Furthermore, a plurality of support columns are disposed on the upper surface of the bottom cover, and the distance between the upper surface of the support columns and the lower surface of the lamp cavity is equal to or slightly smaller than the thickness of the PCBA board.

Furthermore, the lamp housing is provided with an upper wire outlet groove near the wire outlet, and the bottom cover is provided with a lower wire outlet groove corresponding to the upper wire outlet groove, the upper wire outlet groove and the lower wire outlet groove form a wire outlet cavity, the wire is located in the wire outlet cavity, the shape of the upper wire outlet groove and the lower wire outlet groove is the same as the shape of the wire, and the wire is sealedly connected to the upper wire outlet groove and the lower wire outlet groove.

Furthermore, the lamp housing is provided with sealing grooves on two bottom sides parallel to the wires, and the bottom cover is provided with sealing rings corresponding to the sealing grooves, and the sealing rings are inserted into the sealing grooves.

Furthermore, a positioning ring is provided on the upper surface of the lamp housing.

Furthermore, an elastic buckle is provided on the outer wall of the lamp housing.

The utility model also provides a light bar, comprising an LED point light source with glue-filled back and a light bar, and also comprising a mounting shell, wherein the mounting shell is provided with a plurality of light holes, and the lenses protrude from the light holes.

The utility model provides an LED point light source and light strip with glue filling on the back through improvement, which has at least one of the following improvements and advantages compared with the prior art:

1. The utility model is provided with a lens, and the lamp housing and the lens are integrated. The lens is higher than the upper surface of the lamp housing, so that the light output angle is larger, and the lens can be made into a polarized lens to meet various optical application requirements of customers.

2. The utility model arranges the lamp beads in the lamp cavity and adopts an open design so that the light-emitting surface is not covered with glue. The lamp housing and the bottom cover are spliced and glue is injected through the glue injection holes on the back of the bottom cover to fully seal and waterproof, which helps to reduce light loss and improve light efficiency.

3. The utility model provides a support column and a first sealing ring to press the PCBA board against the first sealing ring, so that the glue will not enter the lamp cavity during the glue filling process. The second sealing ring is also provided, so that even if a small part of the glue penetrates into the first sealing ring and the lamp housing, the second sealing ring can protect the lamp cavity and prevent the glue from entering, thereby achieving a better sealing effect.

Fourth, the utility model adopts an elastic snap-on installation method, which is convenient for installation and maintenance; and in each point light source string, a single point light source is an independent pixel point, which is convenient for programming control.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

FIG1 is a schematic diagram of the structure of the LED point light source with back glue filling according to the utility model;

FIG2 is an exploded schematic diagram of the structure of the LED point light source with backside glue filling according to the present invention;

FIG3 is a schematic diagram of the structure of the LED point light source lamp housing with glue filling on the back side of the utility model;

FIG4 is a cross-sectional view of the LED point light source with backside glue filling according to the present invention;

FIG5 is a cross-sectional view of the LED point light source with back glue filling according to the present invention from another angle;

FIG6 is a schematic structural diagram of a bottom cover of an LED point light source with glue filling on the back side of the present invention;

7 is a schematic structural diagram of the LED point light source with back glue filling according to the utility model from another angle;

FIG. 8 is a schematic diagram of the installation of the light bar of the present invention.

Description of reference numerals:

1. Lamp housing; 2. Bottom cover; 3. PCBA board; 4. Wire; 5. Mounting housing; 11. Lamp cavity; 111. Lens; 112. Second sealing ring; 12. Positioning piece; 13. Upper outlet groove; 14. Sealing groove; 15. Positioning ring; 16. Elastic buckle; 17. First sealing ring; 18. Positioning groove; 21. Glue injection hole;

22. Ultrasonic line; 23. Support column; 24. Lower outlet groove; 25. Sealing ring; 31. Glue filling cavity;

32. Lamp bead; 51. Lamp hole.

DETAILED DESCRIPTION

The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are described clearly and completely.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

In the description of the present utility model, the meaning of "several" is one or more, the meaning of "many" is two or more, "greater than", "less than", "exceed", etc. are understood to exclude the number, and "above", "below", "within", etc. are understood to include the number. It should also be understood that the term "and/or" used in the specification of this application and the attached claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

The utility model provides an LED point light source and a light strip with glue filling on the back through improvement. The technical solution of the utility model is:

As shown in FIG1 , a back-filled LED point light source and light strip includes:

A lamp housing 1, wherein a plurality of lamp cavities 11 are formed on the inner upper wall surface of the lamp housing 1, wherein a lens 111 is formed on the upper portion of the lamp cavity 11, wherein the lens 111 is formed integrally with the lamp housing 1, and the lamp housing 1 and the lens 111 are integrated, wherein the lens 111 is higher than the upper surface of the lamp housing 1, so that the light output angle is larger, and the lens 111 can be made into a polarized lens 111, so as to meet various optical application requirements of customers.

The bottom cover 2, as shown in FIG7, is fixedly connected to the bottom of the lamp housing 1, and at least one glue injection hole 21 is provided on the bottom cover 2 to reduce the possibility of glue leaking out, thereby enhancing the waterproof effect. By providing the glue injection hole 21 on the bottom cover 2 and adopting a back-side high thermal conductivity fully enclosed glue injection method, the sealing of the lamp is improved, and the waterproof level can be as high as IP67.

PCBA board 3, as shown in FIG2 and FIG4, the PCBA board 3 is located between the lamp housing 1 and the bottom cover 2, the upper surface of the PCBA board 3 is tightly connected to the lower surface of the lamp cavity 11, and the PCBA board 3 seals the lamp cavity 11 so that glue does not enter the lamp cavity 11. As shown in FIG4 and FIG5, a glue filling cavity 31 is formed between the PCBA board 3 and the bottom cover 2, the glue filling cavity 31 is connected to the glue filling hole 21, and the glue filling cavity 31 is not connected to the lamp cavity 11. The light-emitting surface of the lamp bead 32 in the lamp cavity 11 is not covered with glue, and the light-emitting effect is not affected. A plurality of lamp beads 32 are electrically connected to the upper surface of the PCBA board 3, and each of the lamp beads 32 is located in a lamp cavity 11. The lamp bead 32 of the LED point light source is partially located in the lamp cavity 11, and adopts an open design so that the light-emitting surface is not covered with glue. The lamp housing 1 and the bottom cover 2 are spliced together, and glue is injected through the glue injection hole 21 on the back of the bottom cover 2 to fully seal and waterproof, which helps to reduce light loss and improve light efficiency.

Wire 4, as shown in FIG2, is electrically connected to the PCBA board 3, and the wire 4 passes through between the lamp housing 1 and the bottom cover 2. The wire 4 can be a flat wire with a flat cross-section, which can fit the mounting surface tightly, thus saving space during installation and making the lamp more compact. And because the flat wire has a large contact area, the heat conduction efficiency with the lamp housing 1 and the bottom cover 2 is higher. This helps to dissipate heat from the back-filled LED point light source described in this embodiment, and prevents the performance of the LED from being reduced or the life of the LED from being shortened due to overheating.

In some embodiments, as shown in FIG3 , a first sealing ring 17 is disposed on a side of the lamp housing 1 close to the PCBA board 3, and a second sealing ring 112 is disposed on a side of the lamp cavity 11 close to the PCBA board 3, and the first sealing ring 17 and the second sealing ring 112 are at the same height. The first sealing ring 17 and the second sealing ring 112 are used to further seal the lamp cavity 11 to prevent glue from entering the lamp cavity 11.

In some embodiments, as shown in FIG6 , a plurality of support columns 23 are disposed on the upper surface of the bottom cover 2, and the distance between the upper surface of the support columns 23 and the lower surface of the lamp cavity 11 is equal to or slightly less than the thickness of the PCBA board 3. The support columns 23 are used to cooperate with the first sealing ring 17 and the second sealing ring 112 to press the PCBA board 3 to prevent glue from entering the lamp cavity 11.

In some embodiments, as shown in FIG3 , a plurality of positioning members 12 are arranged around the lamp cavity 11 in the lamp housing 1, and a chamfer is arranged on the upper portion of each positioning member 12. The positioning members 12 are evenly distributed around the first sealing ring 17. The positioning members 12 are used to position and limit the PCBA board 3, and the chamfer is used for guiding when the PCBA board 3 is installed.

When pouring glue, first put the PCBA board 3 into the lamp housing 1, and then cover the bottom cover 2 onto the lamp housing 1. At this time, the support column 23 cooperates with the first sealing ring 17 to press the PCBA board 3 onto the first sealing ring 17, so that when pouring glue, the glue will not enter the lamp cavity 11. By providing the second sealing ring 112, even if a small part of the glue penetrates into the first sealing ring 17 and the lamp housing 1, the second sealing ring 112 protects the lamp cavity 11 to prevent the glue from entering, thereby achieving a better sealing effect.

In some embodiments, as shown in Fig. 6, ultrasonic lines 22 are arranged at four corners of the bottom cover 2. The ultrasonic lines 22 are used for ultrasonic welding, and the bottom cover 2 and the lamp housing 1 are ultrasonically welded to improve the waterproof effect.

In some embodiments, as shown in FIG. 3 and FIG. 6 , the lamp housing 1 is provided with an upper wire outlet groove 13 near the wire 4, and the bottom cover 2 is provided with a lower wire outlet groove 24 corresponding to the upper wire outlet groove 13, and the upper wire outlet groove 13 and the lower wire outlet groove 24 form a wire outlet cavity, and the wire 4 is located in the wire outlet cavity, and the shapes of the upper wire outlet groove 13 and the lower wire outlet groove 24 are the same as those of the wire 4, and the wire 4 is tightly connected to the upper wire outlet groove 13 and the lower wire outlet groove 24. The upper wire outlet groove 13 and the lower wire outlet groove 24 are used to fix the wire 4.

In some embodiments, as shown in FIG3 and FIG6 , the lamp housing 1 is provided with sealing grooves 14 on both bottom sides parallel to the wires 4, and the bottom cover 2 is provided with sealing rings 25 corresponding to the sealing grooves 14, and the sealing rings 25 are inserted into the sealing grooves 14. Toothed positioning grooves 18 are provided on both sides of the upper wire outlet groove 13 and the lower wire outlet groove 24, and the toothed positioning grooves 18 on both sides of the upper wire outlet groove 13 and the lower wire outlet groove 24 are engaged with each other, and are used for positioning and fixing the lamp housing 1 and the bottom cover 2 when they are installed.

In some embodiments, as shown in FIG2 , a positioning ring 15 is provided on the upper surface of the lamp housing 1, and the positioning ring 15 is used to position the LED point light source with back glue filling described in this embodiment when it is installed on the light bar. As shown in FIG3 , an elastic buckle 16 is provided on the outer wall of the lamp housing 1, and the LED point light source with back glue filling described in this embodiment adopts the elastic buckle 16 installation method, which is convenient for installation and disassembly, and further facilitates the installation and maintenance of the lamp.

The utility model also provides a light bar, including an LED point light source and a light bar with glue filling on the back, as shown in Figure 8, and also includes a mounting shell 5, a plurality of lamp holes 51 are opened on the mounting shell 5, the lens 111 protrudes from the lamp holes 51, the lamp holes 51 are used for emitting light, and the lamp holes 51 cooperate with the positioning ring 15 to position the LED point light source for installation.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a back encapsulating LED pointolite which characterized in that includes:

The upper wall surface of the inside of the lamp housing is provided with a plurality of lamp cavities, and the upper parts of the lamp cavities are lenses;

The bottom cover is fixedly connected with the bottom of the lamp housing, and at least one glue filling hole is formed in the bottom cover;

The PCBA board is positioned between the lamp shell and the bottom cover, the upper surface of the PCBA board is connected with the lower surface of the lamp cavity in a sealing way, a glue filling cavity is formed between the PCBA board and the bottom cover, the glue filling cavity is communicated with the glue filling hole, the upper surface of the PCBA board is electrically connected with a plurality of lamp beads, and each lamp bead is positioned in one lamp cavity;

and the lead is electrically connected with the PCBA and penetrates out from between the lamp shell and the bottom cover.

2. The back-glued LED point light source of claim 1, wherein the lens is integrally formed with the lamp housing, the lens being higher than the upper surface of the lamp housing.

3. The back-glued LED point light source of claim 1, wherein the four corners of the bottom cover are each provided with ultrasonic lines.

4. The back glue-pouring LED point light source according to claim 1, wherein a plurality of positioning pieces are arranged around the lamp cavity in the lamp housing, and chamfers are arranged on the upper portions of the positioning pieces.

5. The back-glued LED point light source of claim 4, wherein the top surface of the bottom cover is provided with a plurality of support posts, and the distance between the top surface of the support posts and the bottom surface of the lamp cavity is equal to or slightly smaller than the thickness of the PCBA board.

6. The back glue-pouring LED point light source according to claim 1, wherein an upper wire outlet groove is formed in the lamp housing near the wire outlet, a lower wire outlet groove is formed in the bottom cover corresponding to the upper wire outlet groove, the upper wire outlet groove and the lower wire outlet groove form a wire outlet cavity, the wire is located in the wire outlet cavity, the shape of the upper wire outlet groove and the shape of the lower wire outlet groove are the same as the shape of the wire, and the wire is connected with the upper wire outlet groove and the lower wire outlet groove in a sealing mode.

7. The back glue-filled LED point light source according to claim 1, wherein sealing grooves are formed in two bottom edges of the lamp housing, which are parallel to the conducting wires, and sealing rings are arranged at positions of the bottom cover, which correspond to the sealing grooves, and the sealing rings are clamped into the sealing grooves.

8. The back-glued LED point light source of claim 1, wherein the upper surface of the lamp housing is provided with a positioning ring.

9. The back-glued LED point light source of claim 8, wherein the outer wall of the lamp housing is provided with elastic snap-fit.

10. A light bar, characterized by comprising the back glue-filled LED point light source and light bar according to any one of claims 1-9, and further comprising a mounting shell, wherein the mounting shell is provided with a plurality of lamp holes, and the lens protrudes from the inside of the lamp holes.