CN202220993U

CN202220993U - LED (light-emitting diode) module and illuminating device

Info

Publication number: CN202220993U
Application number: CN201120287229XU
Authority: CN
Inventors: 赵玉喜
Original assignee: Shenzhen Refond Optoelectronics Co Ltd
Current assignee: Shenzhen Refond Optoelectronics Co Ltd
Priority date: 2011-08-09
Filing date: 2011-08-09
Publication date: 2012-05-16
Anticipated expiration: 2021-08-09

Abstract

The utility model is suitable for the field of LED (light-emitting diode) illumination and provides an LED module and an illuminating device. The LED module comprises a substrate capable of dissipating heat and a reflection shell arranged on the substrate. A flange is arranged along the periphery of the substrate. The reflection shell is correspondingly provided with a groove capable of being clamped with the flange of the substrate, so that the reflection shell is in clamped connection with the substrate. According to the utility model, the flange is arranged along the periphery of the substrate so as to form a circular groove at the periphery of the bottom of the substrate, and the periphery of the reflection shell is correspondingly provided with the groove capable of being clamped with the flange of the substrate so as to ensure the reflection shell to be in clamped connection with the substrate, thus, the edge of the substrate is totally surrounded by the reflection shell, and a junction area between the reflection shell and the substrate is contacted with the outside air at the bottom of the substrate. Due to the adoption of the structure, the water vapor permeating path is prolonged, the water vapor is difficult to flow downwards, and the water vapor is difficult to infiltrate into the module, so that the airtightness of the integral module is greatly improved, the normal work of a chip is ensured, and the stability of the LED module is improved.

Description

A kind of LED module and lighting device

Technical field

The utility model belongs to the LED lighting field, relates in particular to a kind of LED module and lighting device.

Background technology

In conjunction with accompanying drawing 1, common circuit template LED module mainly comprises a substrate 11 at present, on substrate 11, is provided with reflection housing 12, and reflection housing 12 has comprised several reflectors 121, and at least one luminescence chip 13 is set in each reflector 121.In this traditional modular structure, combine closely with substrate 11 even reflect housing 12, but the two is not integrative-structure after all; Therefore at the fringe region of entire module, certainly will there be the bad problem of air-tightness between reflection housing 12 and the substrate 11, like Fig. 2; Steam infiltrates module internal (referring to the trend of the arrow Fig. 2) from fringe region easily, and chip 13 is easy and substrate 11 disengagings under wet environment, and then pull off bonding line; Circuit is broken off, cause the dead lamp of corresponding illuminator.Simultaneously, can cause other related with it illuminator electric currents excessive behind the dead lamp of certain illuminator again, decay is quickened, and then influences the luminescent properties and the stability of entire module, reduction of service life.

The utility model content

The purpose of the utility model is to provide a kind of LED module, is intended to solve the problem of existing LED module moisture resistance difference.

The utility model is to realize like this; A kind of LED module; Comprise the substrate that can dispel the heat and be arranged at the reflection housing on the said substrate; Be provided with flange along said substrate periphery, said reflection housing correspondence is provided with said reflection housing is connected with said substrate engaging.

Optimal technical scheme as the utility model:

Said reflection housing periphery is to extending below a L shaped structure, the groove that formation one engages with said substrate flange.

Said substrate offers at least one step trough, and the bottom correspondence of said reflection housing is provided with the boss that can be sticked in the said step trough.

Said step trough and boss be shaped as T shape.

Said step trough is provided with a plurality of, and is uniformly distributed on the said substrate.

Said substrate is circular or square.

Another purpose of the utility model is to provide a kind of lighting device, comprises luminous component, and said luminous component adopts above-mentioned LED module.

The utility model is provided with flange along substrate periphery, makes the base plate bottom periphery form an annular groove, and the peripheral correspondence of reflection housing is provided with the groove that can engage with the substrate flange; The engaging of reflection housing and substrate is connected, like this, the substrate edges housing encirclement that is reflected fully; The reflection housing contact with outside air in the bottom of substrate with juncture area between the substrate, this structure to prolong the path of water vapor permeable, and steam is difficult against last and go; Therefore be difficult for infiltrating module internal; The air-tightness of entire module is improved greatly, guaranteed the operate as normal of chip, improved the stability of LED module.The lighting moisture resistance that this LED module is installed is good, adaptive capacity is strong, is particularly suitable for using in the moist out of doors rugged environment.

Description of drawings

Fig. 1 is the cross-sectional view of existing LED module;

Fig. 2 is the marginal texture enlarged drawing of LED module shown in Figure 1;

Fig. 3 is the cross-sectional view of the utility model embodiment LED module;

Fig. 4 be in the utility model embodiment LED module substrate look up structural representation ();

Fig. 5 is the marginal texture enlarged drawing of LED module shown in Figure 3;

Fig. 6 is the cross-sectional view of substrate in the utility model embodiment LED module;

Fig. 7 is the sketch map that substrate combines with the reflection housing in the utility model embodiment LED module;

Fig. 8 be in the utility model embodiment LED module substrate look up structural representation (two).

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

In conjunction with accompanying drawing 3; This LED module mainly comprises a substrate that can dispel the heat 31 and is arranged at the reflection housing 32 on the substrate 31; This reflection housing 32 is provided with several reflectors 321, is provided with chip 33 in the reflector 321, also can be filled with packaging plastic 34 in the reflector 321; This packaging plastic 34 can be mixed with fluorescent material according to actual needs, to obtain the light of required color.Further combine accompanying drawing 3,4; In order to improve the humidity resistance of LED module; In the present embodiment, be provided with flange 311 along the periphery of substrate 31, promptly the bottom periphery at substrate 31 has formed a ring-shaped step groove; Reflection housing 32 correspondences are provided with the groove 322 that can engage with substrate flange 311, and reflection housing 32 is connected with substrate 31 engagings.The polycrystalline substance that should be appreciated that substrate 31 shown in Figure 4 has been merely the position that is provided with of explanation flange 311, and the shape of substrate 31 is not limited only to circle shown in Figure 4, can also be square, bar shaped etc.Through above-mentioned structural design, the side of substrate 31 housing 32 that is reflected fully surrounds, in conjunction with Fig. 5; Reflection housing 32 contacts with outside air in the bottom of substrate 31 with juncture area between the substrate 31, this structure to prolong the permeation pathway of steam, and steam is difficult against last and go; Therefore be difficult to infiltrate module internal; The air-tightness of entire module is improved greatly, and then improved the moisture resistance of module, guaranteed the operate as normal of chip 33; Improved the stability of LED module, made it to have longer service life.

Concrete, can form the groove 322 that engages with substrate flange 311 with the periphery that reflects housing to extending below a L shaped structure.

In conjunction with accompanying drawing 6,7; In the present embodiment, substrate 31 can also be offered several step troughs 312, and is corresponding; The bottom of reflection housing 32 is equipped with the stairstepping boss 323 that can engage with step trough 312; Stairstepping boss 323 engages with step trough 312, makes to reflect tightr that housing 32 combines with substrate 31, strengthens the steadiness of LED module.

Further combine accompanying drawing 6,7, this step trough 312 specifically can be a kind of T shape groove, and corresponding, stairstepping boss 323 is a T shape boss, is convenient to processing.Concrete, this T shape hole can be made up of cylindrical (or prismatic) hole of two different-diameters that connect each other.

In conjunction with accompanying drawing 8, in the present embodiment, substrate 31 can be for circular or square, and step trough 312 can be evenly distributed on the substrate 31, the also corresponding bottom that is arranged at reflection housing 32 uniformly of stairstepping boss 323 of reflection housing 32 bottoms.

In the present embodiment, the chip 33 in the reflector 321 directly is mounted on substrate 31 surfaces, therefore the thermal conductivity of substrate 31 is had relatively high expectations, and the substrate 31 in the present embodiment is preferably processed by metal material.

In the present embodiment, reflection housing 32 preferably is made up of epoxide resin material, and the air-tightness of this material itself is superior to traditional plastic material, can further improve the moisture resistance of entire module.

In the present embodiment, reflection housing 32 can be formed on the substrate 31 through injection molding way, makes the air-tightness between reflection housing 32 and the substrate 31 better; Equally, in the process of injection moulding, can directly in step trough 312, form stairstepping boss 323, make reflection housing 32 combine closelyr with substrate 31.

Above-mentioned a kind of preferred embodiment that the utility model only is provided; Substrate shape wherein, material; Thickness, the material of reflection housing, the quantity of reflector and structure etc. all can be selected different designs according to actual needs, are to be understood that; As long as the periphery at substrate is provided with flange, and the edge of reflection housing is engaged to improve bubble-tight LED module all in the protection domain of the utility model with the substrate flange.This LED module is suitable as luminous component and is installed in the lighting device, and this lighting device moisture resistance is good, adaptive capacity is strong, stable luminescent property, and long service life is particularly suitable for in the moist rugged environment out of doors.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. LED module; Comprise the substrate that can dispel the heat and be arranged at the reflection housing on the said substrate; It is characterized in that, be provided with flange along said substrate periphery, said reflection housing correspondence is provided with said reflection housing is connected with said substrate engaging.

2. LED module as claimed in claim 1 is characterized in that, said reflection housing periphery is to extending below a L shaped structure, the groove that formation one engages with said substrate flange.

3. LED module as claimed in claim 1 is characterized in that said substrate offers at least one step trough, and the bottom correspondence of said reflection housing is provided with the boss that can be sticked in the said step trough.

4. LED module as claimed in claim 3 is characterized in that, said step trough and boss be shaped as T shape.

5. LED module as claimed in claim 3 is characterized in that said step trough is provided with a plurality of, and is uniformly distributed on the said substrate.

6. like claim 1 or 5 described LED modules, it is characterized in that said substrate is circular or square.

7. a lighting device comprises luminous component, it is characterized in that, said luminous component adopts each described LED module of claim 1 to 6.