CN218032709U

CN218032709U - Waterproof type LED light source module

Info

Publication number: CN218032709U
Application number: CN202222331569.9U
Authority: CN
Inventors: 陈保朝; 陈杰
Original assignee: Yangzhou Boda Energy Technology Co ltd
Current assignee: Yangzhou Boda Energy Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-13
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses a waterproof LED light source module, including lens housing and aluminium base board, a plurality of LED chips are pasted on the front of aluminium base board, the lens housing is provided with a cavity with an open upper port, a plurality of light distribution lenses are distributed on the bottom wall of the lens housing, the aluminium base board is embedded in the cavity of the lens housing, and the LED chips on the front of the aluminium base board are laminated on the light distribution lenses of the lens housing in a one-to-one correspondence manner; the square wave radiator is placed on the back of the aluminum substrate and formed by continuously bending a thin plate, the root of the square wave radiator is located in a cavity of the lens shell, and the back of the aluminum substrate and the root of the square wave radiator are jointly covered with an encapsulating adhesive layer. Two ends of the lens shell are respectively provided with a shell flange and a fixing hole; or the shell flange is injected with a metal connecting piece. The light source module has the advantages of few assembling parts, simple structure, light weight, low production cost, convenient and quick manufacturing process, easy mastering, good waterproof performance of products and long service life.

Description

Waterproof type LED light source module

Technical Field

The utility model relates to a light source module, in particular to waterproof type LED light source module belongs to waterproof lamps and lanterns technical field.

Background

The manufacturing method of the outdoor LED light source module used in the current market comprises the following steps: a stretching aluminum profile is used as a support of the LED light source module, the stretching aluminum profile is 6 series of alloy aluminum such as 6063 or 6060, for example, for a street lamp, the back face, namely the upper portion of the stretching aluminum profile is provided with a plurality of sheet-shaped heat dissipation ribs, the lower surface of the stretching aluminum profile is a plane bottom plate, a lens of an LED aluminum substrate and the LED light source module is fixed on the plane bottom plate, the lens is made of PC plastic or acrylic plastic, and fixing holes are formed in two ends of the stretching aluminum profile to connect the LED light source module with a lamp shell or a fixing support.

In order to enable the waterproof grade of the light source module to reach IP66 or IP68, a silicon rubber sealing ring is arranged around the aluminum substrate and the lens, or a circle of sealant is extruded around the aluminum substrate and the lens. Through market application in recent years, after outdoor LED light source module work a period, stroboscopic, the light decay of all can appear in the different degree or dead lamp pearl phenomenon, the reason of doing things into its cause:

the first radiator is 6 series of stretched aluminum profiles, the aluminum alloy is affected by the stretching process during stretching, the thickness of each radiating rib is generally between 1.2 and 3.0mm, and the distance between two radiating ribs is generally about 10 mm. The thickness of the heat dissipation ribs, the distance between each heat dissipation rib and the height of the heat dissipation ribs are in direct proportion. The higher the heat dissipation rib is, the thicker the thickness of the heat dissipation rib is required to be, the larger the distance between the adjacent heat dissipation ribs is, the smaller the heat dissipation specific surface area is, and meanwhile, the larger the weight of the aluminum stretching support of the LED light source module is. After working for a period of time, often expose outdoors, easily take place the oxidation, after surface oxidation, seriously influence the radiating effect of tensile aluminium upper portion heat dissipation muscle, and the heat radiating area of tensile aluminium is limited, and the heat of LED light source can't effectively be derived, causes LED lamp pearl light decay or dead lamp pearl.

Secondly, in the LED outdoor light source module on the market, a circle of silica gel is arranged around the aluminum substrate or a silicon rubber sealing ring is installed and fixed between the aluminum substrate and the lens, after the LED outdoor light source module runs for a period of time, because the aluminum substrate, the radiator and the fixing support are made of aluminum, the lens is made of PC (polycarbonate) plastic or acrylic plastic, the sealing ring is made of silicon rubber, the sealing mode is only around the LED outdoor light source module, the outdoor working temperature of the lamp can be uninterruptedly switched between the normal temperature (-20 ℃ -40 ℃) and the LED working temperature of 100 ℃, the sealing effect of the sealing ring can be changed in different degrees, fog and accumulated water can be generated in the LED light source module, and the phenomena of stroboflash, light attenuation and dead lamp beads of the LED light source module are caused.

And thirdly, the bracket of the LED light source module used in the market at the present stage is made of a stretched aluminum alloy material. Under the influence of the aluminum stretching process, the thickness of the upper radiating rib, the thickness of the lower bottom plate and the thickness of the connecting parts at two ends are all different from 1.5 to 5mm. The whole support has heavy weight, high cost and serious waste.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, overcome the problem that exists among the prior art, provide a waterproof type LED light source module, the equipment part is few, and the structure is succinct, light in weight, low in production cost, manufacturing process convenient and fast easily masters, and product waterproof performance is good, long service life.

In order to solve the technical problem, the utility model discloses a waterproof LED light source module, including lens housing and aluminium base board, a plurality of LED chips are pasted on the front of aluminium base board, the lens housing is equipped with the open die cavity of upper port, it distributes on the bottom wall of lens housing and has a plurality of grading lenses, aluminium base board inlays in the die cavity of lens housing, the LED chips on the front of aluminium base board one-to-one laminating is on the grading lens of lens housing; the square wave radiator is placed on the back of the aluminum substrate and formed by continuously bending a thin plate, the root of the square wave radiator is located in a cavity of the lens shell, and the back of the aluminum substrate and the root of the square wave radiator are jointly covered with an encapsulating adhesive layer.

As an improvement of the utility model, the thickness of the encapsulating adhesive layer is 2-5mm.

As a further improvement of the utility model, the square wave radiator is formed by punching an aluminum plate with the thickness of 0.10-0.20mm, the height of the fins of the square wave radiator is 15-50mm, and the upper port of the lens shell is exposed.

As a further improvement, the both ends of the lens housing in the length direction are respectively provided with a housing flange extending outwards, and the housing flange is respectively provided with a fixing hole.

As a further improvement of the utility model, the connection position of the shell flange is provided with a metal connecting piece and is molded in the shell flange.

As a further improvement of the utility model, the upper surface of the shell flange is respectively provided with tooth-shaped lines.

As a further improvement, the inner wall of the cavity of the lens shell is provided with tooth-shaped lines.

As a further improvement of the present invention, the bottom wall middle part of the lens housing is provided with a drive module installation cavity recessed downward.

Compared with the prior art, the utility model discloses following beneficial effect has been obtained: traditional light source module is equipped with aluminium alloy support plane bottom plate, need pass through a N fix with screw between aluminium base board of module and the radiator, aluminium alloy support plane bottom plate need process a N screw and put the tooth tapping, lens and aluminium alloy support also need a N fix with screw, need place the sealing washer between aluminium base board and lens, beat sealed glue. This LED light source module directly adopts the lens casing as the support of LED light source module, has replaced the connection of numerous screws or buckle with whole encapsulating, has also cancelled sealing washer and sealed glue between aluminium base board and the lens, makes the structure of light source module succinct more, and the preparation technology is simpler.

Drawings

Fig. 1 is a front view of a first embodiment of a waterproof LED light source module according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

fig. 4 is a first perspective view of a second embodiment of the waterproof LED light source module according to the present invention;

fig. 5 is a second perspective view of a second embodiment of the waterproof LED light source module according to the present invention;

fig. 6 is an exploded view of a waterproof LED light source module according to a second embodiment of the present invention;

fig. 7 is an exploded view of a second embodiment of the waterproof LED light source module according to the present invention.

In the figure: 1. a lens housing; 1a, a light distribution lens; 1b, driving the module installation cavity; 1c, a housing flange; 1d, fixing holes; 1e, forming a cavity; 1f, tooth-shaped lines; 2. an aluminum substrate; 3, LED chip; 4. a square wave radiator.

Detailed Description

In the following description of the present invention, the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplified description, and do not mean that the device must have a specific orientation. Taking a common street lamp as an example, the downward surface is simply referred to as the "front surface", and the upward surface is simply referred to as the "back surface".

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 to 7, the utility model discloses a waterproof type LED light source module includes lens housing 1 and aluminium base board 2, and aluminium base board 2's front is pasted and is had a plurality of LED chips 3 LED lamp pearls promptly, and lens housing 1's material is PC plastics, and lens housing 1 is half surrounding structure, is equipped with the open die cavity 1e of last port, and it has a plurality of grading lens 1a to distribute on lens housing 1's the diapire, carries out the secondary grading according to luminous requirement. The aluminum substrate 2 is embedded in the cavity 1e of the lens housing 1, and the LED chips 3 on the front surface of the aluminum substrate 2 are correspondingly attached to the light distribution lens 1a of the lens housing 1 one by one.

The diapire middle part of lens housing 1 is equipped with the drive module installation cavity 1b of undercut, and drive module installation cavity 1b is divided into bilateral symmetry's two halves, the drive module at sharing middle part with the light source module.

The square wave radiator 4 is placed on the back of the aluminum substrate 2, the square wave radiator 4 is formed by continuously stamping and bending a thin plate with the thickness of 0.10-0.20mm, and can be made of 3003 antirust aluminum plates which are exposed in an outdoor humid environment, are not oxidized, rusty, stable in heat-conducting property and low in manufacturing cost. The aluminum substrate 2 and the square wave radiator 4 are both attached in the lens cavity, fixed by a clamp, and poured into the lens cavity 1e, so that the lens, the aluminum substrate 2 and the radiator are integrated into a whole through the pouring sealant. And after the pouring sealant is solidified, removing the fixing clamp.

By adopting the square-wave radiator 4, good contact with the aluminum substrate 2 can be ensured all the time after glue filling, the weight is light, the specific surface area is large, and the heat dissipation effect is good. The root of the square wave heat sink 4 is located in the cavity 1e of the lens housing 1, and the upper part of the square wave heat sink 4 is exposed from the upper port of the lens housing 1.

A sealing ring and a sealant are arranged between the aluminum substrate 2 and the lens of the traditional light source module, only linear sealing can be realized, and sealing failure can be caused once the sealing performance at the sealing ring is reduced; especially, when the LED light source module works for a long time in an outdoor sun-rain environment, fog and accumulated water generated in the LED light source module still exist, and the phenomena of stroboflash, light attenuation and lamp bead death of the LED light source module are caused. The back surface of the aluminum substrate 2 and the root part of the square wave-shaped radiator 4 are covered with a potting adhesive layer, the whole potting is carried out by using the potting adhesive, the surface sealing is realized, and the thickness of the potting adhesive layer is 2-5mm.

The height of the fins of the square-wave radiator 4 is 15-50mm, the bottom of the radiator and the aluminum substrate 2 are tightly attached together after potting, the upper part of the radiator is exposed outside through the potting sealant, the heat conduction effect is good, the heat dissipation area is large, and the weight is light. The sealing performance and the sealing effect are remarkably improved, so that the service life of the LED outdoor light source module is prolonged to 6-10 years or even more than 10 years from 2-4 years which is common at present.

When the thickness of the potting adhesive layer is 5mm or more, the waterproof grade can completely reach more than IP68, the potting adhesive layer is completely suitable for outdoor rain environment, and can also be used for illumination of underwater landscape lamps.

This LED light source module's manufacturing cost is lower, takes an outdoor 50WLED light source module in the existing market as an example: the outdoor 50WLED light source module with the traditional structure has the manufacturing cost of about 40.00 yuan and the weight of about 400g, and the cost of the fully-glue-pouring outdoor 50WLED light source module developed at this time is about 25.00 yuan and the weight of about 200 g.

The both ends of 1 length direction of lens casing are equipped with outside extension's casing flange 1c respectively, are equipped with fixed orifices 1d on the casing flange 1c respectively, and accessible fixed orifices 1d and lamps and lanterns shell or fixed bolster are connected, also can be when moulding plastics, and the both ends of lens are moulded plastics together to the metal connecting piece of putting into in the casing flange 1c at both ends, intensity when increasing the connection.

As shown in fig. 5 to 7, the inner wall of the cavity of the lens housing 1 may be provided with a tooth-shaped pattern 1f, so that the combination of the potting adhesive and the inner wall of the cavity is more reliable.

The upper surface of the shell flange 1c can also be provided with tooth-shaped lines 1f, and when the shell flange 1c is connected with a lamp shell or a fixed support through bolts, tooth tops of the tooth-shaped lines 1f generate certain elastic deformation, so that the shell flange is favorable for fastening and is not easy to loosen.

The foregoing is only a preferred and exemplary embodiment of the present invention, and the basic principles and main features of the present invention and the advantages of the present invention have been shown and described, without thereby limiting the scope of the present invention, which should be understood by those skilled in the art, and the present invention is not limited by the foregoing exemplary embodiments. In addition to the above embodiments, the present invention can have other embodiments without departing from the spirit and scope of the present invention. The utility model discloses still can have various changes and improvements, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the protection scope that the utility model discloses required. The scope of the invention is defined by the appended claims and equivalents thereof. The undescribed technical features of the present invention can be realized by or using the prior art, and are not described herein again.

Claims

1. The utility model provides a waterproof type LED light source module, includes lens casing and aluminium base board, the front of aluminium base board is pasted and is had a plurality of LED chips, characterized by: the lens shell is provided with a cavity with an open upper port, a plurality of light distribution lenses are distributed on the bottom wall of the lens shell, the aluminum substrate is embedded in the cavity of the lens shell, and the LED chips on the front surface of the aluminum substrate are correspondingly attached to the light distribution lenses of the lens shell one by one; the square wave-shaped radiator is placed on the back face of the aluminum base plate and formed by continuously bending a thin plate, the root of the square wave-shaped radiator is located in a cavity of the lens shell, and the back face of the aluminum base plate and the root of the square wave-shaped radiator are jointly covered with an encapsulating adhesive layer.

2. The waterproof LED light source module according to claim 1, wherein: the thickness of the potting adhesive layer is 2-5mm.

3. The waterproof LED light source module of claim 1, wherein: the square wave radiator is formed by punching an aluminum plate with the thickness of 0.10-0.20mm, the height of a fin of the square wave radiator is 15-50mm, and the fin is exposed out of an upper port of the lens shell.

4. The waterproof LED light source module of claim 1, wherein: the lens shell is characterized in that two ends of the lens shell in the length direction are respectively provided with a shell flange extending outwards, and the shell flanges are respectively provided with a fixing hole.

5. The waterproof LED light source module according to claim 4, wherein: and the connecting part of the shell flange is provided with a metal connecting piece and is injected into the shell flange.

6. The waterproof LED light source module of claim 4, wherein: the upper surface of the shell flange is provided with tooth-shaped lines respectively.

7. The waterproof LED light source module of claim 1, wherein: and tooth-shaped grains are arranged on the inner wall of the cavity of the lens shell.

8. The waterproof LED light source module according to any one of claims 1 to 7, wherein: and the middle part of the bottom wall of the lens shell is provided with a driving module mounting cavity which is sunken downwards.