CN212515299U

CN212515299U - Compact high heat dispersion bar LED light source

Info

Publication number: CN212515299U
Application number: CN202021401027.9U
Authority: CN
Inventors: 陈云峰; 邱长春
Original assignee: Wuhan Kesai Intelligent Electronic Co Ltd
Current assignee: Wuhan Kesai Intelligent Electronic Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-02-09
Anticipated expiration: 2030-07-16

Abstract

The utility model provides a compact high heat dispersion bar-shaped LED light source, which comprises a box body, a light source side plate, a first clapboard, a fan and a plurality of light-equalizing parts, wherein both ends of the box body along the length extending direction are fixedly connected with the light source side plate; a first partition board is fixedly arranged in the box body, the first partition board is arranged along the length extension direction of the box body, two ends of the first partition board are abutted against the light source side board, and the first partition board, the box body and the light source side board are enclosed to form a first inner cavity and a second inner cavity which are separated; a through opening part is arranged on the box body at one side of the first partition plate, the light source is fixedly arranged on the surface of the first partition plate forming the first inner cavity, a light equalizing part is arranged on the box body at the opening part, and light rays emitted by the light source sequentially pass through the first inner cavity and the light equalizing part and are emitted outwards; and the surface of one side of the box body, which is far away from the opening part, is provided with a through air inlet and a fan mounting hole, the air inlet and the fan mounting hole are communicated with the second inner cavity, and the fan is fixedly arranged on the box body at the fan mounting hole.

Description

Compact high heat dispersion bar LED light source

Technical Field

The utility model relates to a machine vision is with LED light source technical field, especially relates to a compact high heat dispersion bar LED light source.

Background

High-speed online product quality detection systems based on machine vision technology are increasingly applied to various continuous high-speed production lines. In a continuous material high-speed production line, a quality inspection system based on a line scanning industrial camera is widely applied. When the line scanning industrial camera works, in order to meet the requirement of high resolution, the exposure time is very short, and generally only a few microseconds to dozens of microseconds. Therefore, the light source for providing illumination for photographing the line scanning camera can help the line scanning camera to image on a curved, uneven or bright surface. The light source needs to meet the requirements of high brightness, uniform light spots, low temperature rise of a light source device, slow attenuation change of the performance of the LED lamp bead, long service life of the device and the like.

The line scanning industrial camera photographing imaging light source is mainly divided into a dome positive light source and a strip backlight source. At present, the bar LED light source in a poor light on the market, it is reasonable inadequately to have device shell heat dissipation design, and wind channel structure radiating efficiency is lower, the device adopts the fan of blowing in a large number, the wiring assembly is complicated, the device rises in temperature when continuous operation, LED lamp pearl performance decay is too fast, the device life-span is shorter, more not enough such as customer maintenance cost height.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a compact high heat dispersion bar LED light source that heat radiation structure is compact reasonable, wiring is convenient, the continuous operation temperature rise is low.

The technical scheme of the utility model is realized like this: the utility model provides a compact high heat dispersion bar-shaped LED light source, which comprises a box body (1), a light source (2), a light source side plate (3), a first clapboard (4), a fan (5) and a plurality of light-equalizing parts (6), wherein both ends of the box body (1) along the length extension direction are fixedly connected with the light source side plate (3); a first partition plate (4) is fixedly arranged in the box body (1), the first partition plate (4) is arranged along the length extension direction of the box body (1), two ends of the first partition plate (4) are abutted against the light source side plate (3), and the first partition plate (4), the box body (1) and the light source side plate (3) are encircled to form a first inner cavity (10) and a second inner cavity (20) which are separated; a through opening part (11) is arranged on the box body (1) on one side of the first partition plate (4), the light source (2) is fixedly arranged on the surface of the first partition plate (4) forming the first inner cavity (10), a light-equalizing part (6) is arranged on the box body (1) of the opening part (11), and light rays emitted by the light source (2) sequentially pass through the first inner cavity (10) and the light-equalizing part (6) and are emitted outwards; one side surface of the box body (1) far away from the opening part (11) is provided with a through air inlet (7) and a fan mounting hole (8), the air inlet (7) and the fan mounting hole (8) are communicated with the second inner cavity (20), and the fan (5) is fixedly mounted on the box body (1) at the fan mounting hole (8).

On the basis of the technical scheme, preferably, a plurality of second partition plates (9) are arranged in the second inner cavity (20) at intervals, the second partition plates (9) are arranged along the extending direction of the box body (1), one ends of the second partition plates (9) are fixedly connected with the inner surface of the first partition plate (4) forming the second inner cavity (20), the other ends of the second partition plates (9) extend towards the inner surface of the box body (1) far away from one end of the opening part (11) and are fixedly connected with the inner surface, the second partition plates (9) divide the second inner cavity (20) into a plurality of parallel air channels, and each air channel is communicated with the air inlet (7) and the fan mounting hole (8).

More preferably, the surface of the second partition plate (9) is continuously provided with arc-shaped bulges (91), and the bulges (91) are arranged along the extending direction of the box body (1).

Still further preferably, the air inlets (7) are arranged between two end faces of the box body (1) in the extending direction at intervals, the air inlets (7) at two end parts of the box body (1) are arranged close to the end face of the box body (1), and the fan mounting hole (8) and the fan (5) are arranged on the box body (1) between the adjacent air inlets (7).

More preferably, the air inlet (7) is a plurality of kidney-shaped through holes which are arranged at intervals along the extending direction of the box body (1), each kidney-shaped through hole extends towards the direction of the opening part (11), and each kidney-shaped through hole penetrates through one side of the box body (1) far away from the opening part (11) and partially penetrates through each second partition plate (9).

Further preferably, the thickness of the first partition (4) is greater than the thickness of the second partition (9).

On the basis of the technical scheme, preferably, a plurality of light homogenizing part installation grooves (12) are formed in the box body (1) of the opening part (11), the light homogenizing part (6) is embedded in the light homogenizing part installation grooves (12), and the light homogenizing part (6) is arranged in parallel with the first partition plate (4).

Further preferably, the light-homogenizing part (6) is made of frosted organic glass.

On the basis of the above technical solution, preferably, the inner surface of the box body (1) close to the opening (11) and the surface of the first partition plate (4) are further provided with a reflective film.

On the basis of the technical scheme, preferably, the box body (1), the light source side plate (3), the first partition plate (4) and the second partition plate (9) are all made of aluminum alloy materials.

The utility model provides a pair of compact high heat dispersion bar LED light source for prior art, has following beneficial effect:

(1) the utility model discloses a set up first inner chamber and second cavity that are not communicated each other in a box, be used for placing the light source and forming the wind channel that circulates respectively, under the convulsions effect of fan, the air enters through the air intake, is discharged by the fan, and the air takes place forced heat exchange with the baffle, takes away the heat that the continuous high strength work of light source produced, can reach higher heat dispersion in compact structure;

(2) the air inlets at the two ends of the box body are arranged close to the end face of the box body as much as possible, so that an air draft dead zone can be prevented from being generated by the fan, the number of the fan and the number of the air inlets can be correspondingly adjusted according to the extension length of the box body, and the heat dissipation requirements of light sources with different lengths are met;

(3) the second partition plates are arranged at intervals, so that the total heat dissipation area is increased, air is increased, the heat exchange efficiency is improved, the gaps between the heat dissipation fins and the arc-shaped cover body are small, and the formed parallel air channels can prevent the heat dissipation efficiency from being reduced due to the fact that turbulent flow is generated in the second inner cavity;

(4) when heat is conducted from the first partition plate to the second partition plate, the thickness of the first partition plate is larger than that of the second partition plate, namely the thicknesses of the heat on the first partition plate and the second partition plate are sequentially reduced, so that the heat conduction efficiency is kept at a higher level;

(5) the arc-shaped bulge part arranged on the surface of the second partition plate can further increase the contact area of the second partition plate and the air in the second inner cavity, and improve the heat conduction efficiency;

(6) the reflective films on the surface of the box body in the first inner cavity and the surface of the first partition plate can improve the reflectivity of light emitted by the light source, reduce the light attenuation of the inner wall of the first inner cavity and improve the brightness output by the light source;

(7) the opening part of the box body is provided with a plurality of light-equalizing part mounting grooves, the position of a single light-equalizing part can be adjusted to deal with the light-equalizing effect of different scenes, and two or more light-equalizing parts can be placed in each light-equalizing part mounting groove to achieve the better effect of equalizing light spots.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a compact high heat dissipation property bar-shaped LED light source of the present invention;

fig. 2 is a perspective view of the compact high heat dissipation performance bar-shaped LED light source of the present invention after a light source side plate is removed;

fig. 3 is a perspective view of the compact high heat dissipation performance bar-shaped LED light source of the present invention in a combined state with the first partition plate and the second partition plate;

fig. 4 is a front view of fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the utility model provides a compact high heat dispersion bar LED light source, including box 1, light source 2, light source curb plate 3, first baffle 4, fan 5, a plurality of even light part 6 and second baffle 9, wherein:

the box body 1 is internally provided with a space for accommodating the light source 2 and the fan 5, and a light emitting light path and a circulating air channel for radiating the light source 2 are formed;

a light source 2, a light emitting part, which provides exposure illumination for the line scanning industrial camera;

a light source side plate 3 for closing both ends of the case 1 in the length extending direction;

a first partition plate 4 for partitioning the inside of the case 1;

the light equalizing part 6 is used for protecting the light source 2 and equalizing the light emitted by the light source 2;

the fan 5 is used for forcibly exhausting air and taking away heat generated by continuous work of the light source 2.

Specifically, a first partition plate 4 is fixedly arranged in the box body 1, the first partition plate 4 is arranged along the length extension direction of the box body 1, two ends of the first partition plate 4 are abutted against the light source side plate 3, and the first partition plate 4, the box body 1 and the light source side plate 3 are encircled to form a first inner cavity 10 and a second inner cavity 20 which are separated; a through opening part 11 is arranged on the box body 1 at one side of the first partition plate 4, the light source 2 is fixedly arranged on the surface of the first partition plate 4 forming the first inner cavity 10, a light-equalizing part 6 is arranged on the box body 1 of the opening part 11, and light rays emitted by the light source 2 sequentially pass through the first inner cavity 10 and the light-equalizing part 6 and are emitted outwards; the air inlet 7 and the fan mounting hole 8 that link up are seted up to the side surface that the opening 11 is kept away from to box 1, and air inlet 7 and fan mounting hole 8 all communicate with second inner chamber 20, and fan 5 fixed mounting is on the box 1 of fan mounting hole 8 department. It can be seen that when the fan 5 is operated, air circulates through the air inlet 7, the second cavity 20 and the fan 5, and when the air flows through the first partition 4, the air carries away heat generated by the continuous operation of the light source 2 on the first partition 4. The utility model discloses a bar LED light source can be chooseed for use to light source 2, and it has a plurality of LED lamp pearls along the extending direction linear arrangement of first baffle 4, and the light that light source 2 sent is through when light-uniforming part 6, is handled by its light-uniforming. The opening 11 facilitates mounting and fixing of the light source 2.

As shown in fig. 2 with reference to fig. 3 and 4, a plurality of second partition plates 9 are arranged at intervals in the second inner cavity 20, the second partition plates 9 are arranged along the extending direction of the box body 1, one end of each second partition plate 9 is fixedly connected with the inner surface of the first partition plate 4 constituting the second inner cavity 20, the other end of each second partition plate 9 extends towards the inner surface of the end of the box body 1 far away from the opening 11 and is fixedly connected with the inner surface, the second inner cavity 20 is divided into a plurality of parallel air ducts by the second partition plates 9, and each air duct is communicated with the air inlet 7 and the fan mounting hole 8. The second partition 9 further divides the second inner chamber 20, further defining the flow direction of the air. The number, shape and tolerance settings of the second partition plates 9 can sufficiently take into account the variation in thermal conductance between the first partition plate 4 and the fan 5. Each second partition plate 9 increases the heat exchange area with the air, and can improve the heat exchange efficiency. As a further improvement of the present invention, the thickness of the first partition plate 4 is greater than that of the second partition plate 9. On the path of heat conduction to the second inner cavity 20, the thickness of the material should be gradually reduced according to the heat conduction effect, otherwise, the heat dissipation efficiency is reduced. On the heat conduction path constructed by the first partition plate 4 and the second partition plate 9, mounting holes or the like penetrating the first partition plate 4 cannot be provided because the through holes of these greatly reduce the heat conduction efficiency of the first partition plate 4. For improving the heat dissipation efficiency, reducing the product weight, the utility model discloses a box 1, light source curb plate 3, first baffle 4 and second baffle 9 all can adopt the aluminum alloy material.

As shown in fig. 4, in order to further increase the heat exchange effect of the second separator 9, arc-shaped protrusions 91 are continuously arranged on the surface of the second separator 9, and the protrusions 91 are arranged along the extending direction of the tank 1.

As shown in fig. 1, the length of the box 1 can be changed as required, in order to ensure the heat exchange effect and stabilize the temperature of the light source 2 during continuous operation, the air inlets 7 are arranged between the two end faces of the box 1 in the extending direction at intervals, the air inlets 7 at the two end parts of the box 1 are arranged close to the end face of the box 1, and the fan mounting holes 8 and the fans 5 are arranged on the box 1 between the adjacent air inlets 7. The number of the air inlets 7 and the number of the fans 5 can be increased or decreased according to actual needs.

As shown in fig. 2, the air inlet 7 may be a single through hole or may be formed by a plurality of through hole arrays. The air inlet 7 is a plurality of kidney-shaped through holes which are arranged at intervals along the extending direction of the box body 1, each kidney-shaped through hole extends towards the direction of the opening part 11, and each kidney-shaped through hole penetrates through one side of the box body 1 far away from the opening part 11 and partially penetrates through each second partition plate 9.

In order to fix the light-equalizing part 6, a plurality of light-equalizing part mounting grooves 12 are arranged on the box body 1 of the opening part 11, the light-equalizing part 6 is embedded in the light-equalizing part mounting grooves 12, and the light-equalizing part 6 is arranged in parallel with the first partition plate 4. The light-equalizing part 6 is made of frosted organic glass. The light-equalizing component mounting grooves 12 in the attached drawings are two, the requirements of light-equalizing effect under different application scenes can be met, one light-equalizing component 6 can be mounted in different light-equalizing component mounting grooves 12, or the light-equalizing components 6 can be mounted in the two light-equalizing component mounting grooves 12 simultaneously.

The inner surface of the box body 1 close to the opening part 11 and the surface of the first clapboard 4 are also provided with a reflective film. The reflective film can improve the reflection effect of light emitted by the light source 2, reduce the light attenuation of the inner wall of the first inner cavity 10 and improve the output brightness of the light source.

For convenience of processing, the box body 1, the first partition plate 4 and the second partition plate 9 may be integrally formed.

An electrical interface can be further arranged on the light source side plate 3, so that the light source side plate can be electrically connected with the light source 2 or the fan 5 conveniently, an electrical circuit can be hidden in the box body 1, wiring is simplified, and the appearance of the strip-shaped light source is more attractive.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a compact high heat dispersion bar LED light source which characterized in that: the LED lamp box comprises a box body (1), a light source (2), a light source side plate (3), a first partition plate (4), a fan (5) and a plurality of light-equalizing parts (6), wherein two ends of the box body (1) in the length extension direction are fixedly connected with the light source side plate (3); a first partition plate (4) is fixedly arranged in the box body (1), the first partition plate (4) is arranged along the length extension direction of the box body (1), two ends of the first partition plate (4) are abutted against the light source side plate (3), and the first partition plate (4), the box body (1) and the light source side plate (3) are encircled to form a first inner cavity (10) and a second inner cavity (20) which are separated; a through opening part (11) is arranged on the box body (1) on one side of the first partition plate (4), the light source (2) is fixedly arranged on the surface of the first partition plate (4) forming the first inner cavity (10), a light-equalizing part (6) is arranged on the box body (1) of the opening part (11), and light rays emitted by the light source (2) sequentially pass through the first inner cavity (10) and the light-equalizing part (6) and are emitted outwards; one side surface of the box body (1) far away from the opening part (11) is provided with a through air inlet (7) and a fan mounting hole (8), the air inlet (7) and the fan mounting hole (8) are communicated with the second inner cavity (20), and the fan (5) is fixedly mounted on the box body (1) at the fan mounting hole (8).

2. The compact high heat dissipation strip LED light source of claim 1, wherein: the interval is provided with a plurality of second baffle (9) in second inner chamber (20), second baffle (9) set up along the extending direction of box (1), the one end of second baffle (9) and the internal surface fixed connection who constitutes first baffle (4) of second inner chamber (20), the other end of second baffle (9) keep away from the internal surface extension of opening (11) one end and rather than fixed connection towards box (1), second baffle (9) are cut apart into a plurality of parallel wind channels with second inner chamber (20), each wind channel all communicates with air intake (7) and fan mounting hole (8).

3. A compact high heat dissipation strip LED light source as recited in claim 2, wherein: arc-shaped protrusions (91) are continuously arranged on the surface of the second partition plate (9), and the protrusions (91) are arranged along the extending direction of the box body (1).

4. A compact high heat dissipation strip LED light source as recited in claim 3, wherein: air intake (7) interval setting is between the both ends face of box (1) extending direction, and air intake (7) at box (1) both ends are close to the terminal surface setting of box (1), and fan mounting hole (8) and fan (5) set up on box (1) between adjacent air intake (7).

5. The compact high heat dissipation strip LED light source of claim 4, wherein: the air inlet (7) is a plurality of kidney-shaped through holes which are arranged at intervals along the extending direction of the box body (1), each kidney-shaped through hole extends towards the direction of the opening part (11), and each kidney-shaped through hole penetrates through one side, far away from the opening part (11), of the box body (1) and partially penetrates through each second partition plate (9).

6. A compact high heat dissipation strip LED light source as recited in claim 2, wherein: the thickness of the first clapboard (4) is larger than that of the second clapboard (9).

7. The compact high heat dissipation strip LED light source of claim 1, wherein: the light-homogenizing device is characterized in that a plurality of light-homogenizing part installation grooves (12) are formed in the box body (1) of the opening portion (11), the light-homogenizing parts (6) are embedded in the light-homogenizing part installation grooves (12), and the light-homogenizing parts (6) are arranged in parallel with the first partition plate (4).

8. The compact high heat dissipation strip LED light source of claim 7, wherein: the light equalizing part (6) is made of frosted organic glass.

9. The compact high heat dissipation strip LED light source of claim 1, wherein: the inner surface of the box body (1) close to the opening part (11) and the surface of the first partition plate (4) are also provided with a reflective film.

10. The compact high heat dissipation strip LED light source of claim 1, wherein: the box body (1), the light source side plate (3), the first partition plate (4) and the second partition plate (9) are all made of aluminum alloy materials.