CN201706265U

CN201706265U - LED module light source

Info

Publication number: CN201706265U
Application number: CN2010201957864U
Authority: CN
Inventors: 刘鑫
Original assignee: Shenzhen Refond Optoelectronics Co Ltd
Current assignee: Shenzhen Refond Optoelectronics Co Ltd
Priority date: 2010-05-19
Filing date: 2010-05-19
Publication date: 2011-01-12
Anticipated expiration: 2020-05-19

Abstract

The utility model relates to a luminescence light source, particularly to an LED module light source, which comprises an LED chip, a first reflector cup, a second reflector cup and a baseplate, wherein the first reflector cup is arranged on the surface of the baseplate, and the second reflector cup is arranged on one side of the rim surface of the first reflector cup in the light direction and the bottom surface of the second reflector cup comprises one or more first reflector cup rim surfaces. Since the second reflector cup is additionally arranged on one side of the first reflector cup, the whole light emitted by the LED chip is all reflected through the first reflector cup basically, the light source efficiency is high, the light reaches to the bottom surface of the second reflector cup after being refracted and scattered by the silica gel in the first reflector cup, and then the light refracted and scattered by the silica gel in the second reflector cup again, the light extraction surface of the second reflector cup serves as a surface light source with larger area, therefore, the light is even and soft, strong string light is eliminated, and the high requirement of such fields as indoor illumination for the luminescence light source is satisfied.

Description

A kind of LED die set light source

Technical field

The utility model relates to a kind of illuminating source, specifically is meant a kind of LED die set light source.

Background technology

LED has the light efficiency height; long service life; energy-conservation; numerous advantages such as environmental protection; more and more widely be applied to numerous fields; as room lighting; outdoor lighting; backlight etc.; existing LED die set light source generally comprises led chip; reflector and substrate; reflector is arranged on substrate surface; each reflector bottom surface is provided with the led chip more than or; be filled with the silica gel material that shields in the reflector; because the rim of a cup face of reflector is less; so the rim of a cup face of reflector can be regarded spot light as; and the LED die set light source is exactly the combination of many spot lights; since each spot light be reflected the cup wall of cup separate; and the brightness of each spot light can not be accomplished in full accord; so the light that existing LED die set light source general performance goes out is even inadequately; soft; even also having stronger string light, the field of having relatively high expectations for room lighting etc. still can not meet the demands fully.

The utility model content

The technical problem that the utility model mainly solves provides the LED die set light source of even, soft, the no string light of a kind of brightness.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of LED die set light source is provided, comprise led chip, first reflector, substrate, described first reflector is arranged on substrate surface, each first reflector bottom surface is provided with the led chip more than or, be filled with silica gel in first reflector, described LED die set light source also comprises at least one second reflector, second reflector is arranged on the side of the first reflector rim of a cup face along light direction, the second reflector bottom surface comprises the one or more first reflector rim of a cup face, is filled with silica gel in second reflector.

The beneficial effects of the utility model are: because the utility model LED die set light source has been set up second reflector at the first reflector rim of a cup face along a side of light direction, the bottom surface of second reflector comprises the one or more first reflector rim of a cup face, the light that led chip sends substantially all reflects through first reflector, so source efficiency is very high, light in first reflector silica gel refraction and scattering after the bottom surface of arrival second reflector, silica gel in second reflector and the cup thereof carries out unirefringence and scattering to light again, the exiting surface of second reflector becomes the bigger area source of area, so light is more even, soft, and eliminated strong string light, can satisfy the high request of fields such as room lighting lighting source.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is the structural representation of the utility model LED die set light source embodiment one;

Fig. 2 is an A-A cutaway view among Fig. 1;

Fig. 3 is the structural representation of the utility model LED die set light source embodiment two;

Fig. 4 is a B-B cutaway view among Fig. 3.

Wherein, 1, substrate; 2, led chip; 3, first reflector; 4, second reflector; 5, silica gel; 6, through hole.

The specific embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

First embodiment as the utility model LED die set light source; see also Fig. 1 and Fig. 2; comprise led chip 2; first reflector 3; substrate 1; described first reflector 3 is arranged on substrate 1 surface; each first reflector, 3 bottom surface is provided with a LEDs chip 2; be filled with silica gel 5 in first reflector 3; be used to protect led chip 2; described LED die set light source also comprises one second reflector 4; second reflector 4 is arranged on the side of first reflector, 3 rim of a cup faces along light direction; second reflector, 4 bottom surfaces comprise the rim of a cup face of all first reflectors 3; first reflector 3 and second reflector 4 are arranged on substrate 1 surface by the mode of integrated injection molding; substrate 1 place corresponding with first reflector, 3 lower surfaces is provided with through hole 6; when

first reflector

3 and 4 injection mo(u)ldings of second reflector; injected plastics material flows in the through hole 6; thereby first reflector 3 and second reflector 4 tightly are fixed on the substrate 1; the injected plastics material of first reflector 3 and second reflector 4 can be PPA (polyphthalamide) or PA (polyamide; be commonly called as nylon); the lateral cross section of second reflector 4 is a quadrangle; different shapes such as circle; second reflector, 4 height H, 1 preferred value is to be filled with silica gel 5 equally in 1/10～1/2, second reflector 4 of first reflector, 3 height H 2.

After described first reflector of present embodiment and second reflector are one-body molded, also can be arranged on substrate surface by bonding way.

Because the utility model LED die set light source has been set up second reflector at the first reflector rim of a cup face along a side of light direction, the bottom surface of second reflector comprises the first all reflector rim of a cup faces, the light that led chip sends substantially all reflects through first reflector, so source efficiency is very high, light in first reflector silica gel refraction and scattering after the bottom surface of arrival second reflector, silica gel in second reflector and the cup thereof carries out unirefringence and scattering to light again, the exiting surface of second reflector becomes the bigger area source of area, so light is more even, soft, and eliminated strong string light, can satisfy the high request of fields such as room lighting lighting source.

Second embodiment as the utility model LED die set light source, see also Fig. 3 and Fig. 4, be that with embodiment one difference the LED die set light source comprises 4 second reflectors 4, each second reflector, 4 bottom surface comprises the first reflector rim of a cup face of 1/4 quantity in the LED die set light source, other structure, operation principle and beneficial effect are all consistent with embodiment one, repeat no more herein.

What deserves to be mentioned is: if at first reflector or/and some red line emitting phosphors are set in second reflector, perhaps a part of chip in all led chips is changed into the red LED chip of wavelength 620-650nm, just can improve the color rendering of whole LED die set light source, thereby improve the object color reducing power, satisfy the high request of field such as room lighting more lighting source.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. LED die set light source, comprise led chip, first reflector, substrate, described first reflector is arranged on substrate surface, each first reflector bottom surface is provided with the led chip more than or, be filled with silica gel in first reflector, it is characterized in that: described LED die set light source also comprises at least one second reflector, second reflector is arranged on the side of the first reflector rim of a cup face along light direction, the second reflector bottom surface comprises the one or more first reflector rim of a cup face, is filled with silica gel in second reflector.

2. LED die set light source according to claim 1 is characterized in that: the lateral cross section of described second reflector is quadrangle or circle.

3. LED die set light source according to claim 1 is characterized in that: the described second reflector height H 1 is 1/10～1/2 of the first reflector height H 2.

4. LED die set light source according to claim 1 is characterized in that: described first reflector and second reflector are arranged on substrate surface by the mode of integrated injection molding, and the substrate place corresponding with the first reflector lower surface is provided with through hole.

5. LED die set light source according to claim 1 is characterized in that: described first reflector and second reflector are formed in one, and are arranged on substrate surface by bonding way.

6. according to claim 1 or 4 or 5 described LED die set light sources, it is characterized in that: described first reflector and second reflector are made by PPA or PA material.

7. according to each described LED die set light source of claim 1 to 5, it is characterized in that: described first reflector is or/and also be provided with red line emitting phosphors in second reflector.

8. according to each described LED die set light source of claim 1 to 5, it is characterized in that: segment chip is the red LED chip of wavelength 620-650nm in the described led chip.