WO2010078699A1

WO2010078699A1 - Led source module and lamp

Info

Publication number: WO2010078699A1
Application number: PCT/CN2009/000206
Authority: WO
Inventors: 史杰
Original assignee: She Jie
Priority date: 2008-12-30
Filing date: 2009-02-26
Publication date: 2010-07-15

Abstract

A LED source module includes a light-transmitting shade (1), a lamp cup (2), a plurality of LED sources (3), a sealing member (4), a flexible circuit board (5) and a radiating block (61). Each LED source (3) is electrically connected with the flexible circuit board (5). The light-transmitting shade (1) is mounted at the lower portion of the lamp cup (2). Holding holes whose number and positions correspond to the number and mounting positions of the LED sources (3) are arranged on the flexible circuit board (5). The flexible circuit board (5) is affixed at the inner side of the radiating block (61). Each LED source (3) is directly welded on the surface of the inner side of the radiating block (61) through one holding hole of the flexible circuit board (5). Through holes whose number and positions correspond to the number and mounting positions of the LED sources (3) are arranged at the top of the lamp cup (2). The lamp cup (2) is fixed at the lower portion of the radiating block (61), making each LED source (3) mounted on the radiating block (61) pass through the corresponding through hole and enter the inside of the lamp cup (2). Sealing is carried out using the sealing member (4), thus forming a closed cavity among the light-transmitting shade (1), the lamp cup (2) and the LED sources (3).

Description

LED light source module and luminaire

The utility model belongs to the technical field of semiconductor illumination, in particular to an LED light source module and a lamp. The LED light source module is used to replace the conventional fluorescent light source, and is especially suitable for embedded, ceiling-mounted lamps, and various types of light strips and combined lamps by means of their own combination and adding decorative parts. Background technique

Currently widely used lamps (including downlights, grille lamps, etc.) use fluorescent lamps as a light source. Such fluorescent lamps generally have high power consumption and short lamp life; and the light color is not soft enough to be flickering; the opening delay time is long; and the use of mercury can harm the environment.

Light-emitting diodes, also known as LEDs (Light Emitting Diodes), use solid-state semiconductor chips as luminescent materials. When appropriate voltages are applied across the ends, carriers in the semiconductor recombine, releasing excess energy and causing photon emission to produce visible light. The LED light source has high luminous efficiency and low power consumption; and its light has good monochromaticity and narrow light; it can directly emit colored visible light without filtering. In the case of the same lighting effect, the power consumption is one eighth of the incandescent bulb and one-half of the fluorescent tube. Long service life, up to 100,000 hours. It has strong safety and reliability, low calorific value and no heat radiation. It is a cold light source. It can be safely touched and can precisely control the light type and illumination angle. The light color is soft, no glare, and it does not contain mercury, sodium and other substances that may be harmful to health. Highly controllable, the built-in micro-processing system can control the luminous intensity, adjust the lighting method, and present a colorful seven-color brilliance to achieve the combination of light and art.

The existing LED light source solves some shortcomings existing in the conventional fluorescent lamp, but since the low-power LED is generally used as the light source, the luminous flux is obviously insufficient; due to the sealing in the glass tube, the heat dissipation is poor and the maintenance is inconvenient. Utility model content

The purpose of the utility model is to overcome the deficiencies of the existing fluorescent lamps and low-power LED light sources, and to provide a novel LED light source module with good heat dissipation effect, strong interchangeability, simple structure and convenient maintenance.

A technical solution for achieving the object of the present invention is as follows:

LED light source module, comprising a transparent cover, a lamp cup, a plurality of LED light sources, a sealing member, a flexible circuit board And a heat dissipating block; wherein each of the LED light sources is electrically connected to the flexible circuit board; the translucent cover is mounted on a lower portion of the lamp cup; and the utility model is characterized in that: Having a hole, the number and position of the accommodating hole corresponding to the number and mounting position of the LED light source; the flexible circuit board is pasted on the inner side of the heat sink block; each of the LED light sources passes through a receiving hole of the flexible circuit board is directly soldered on the inner surface of the heat dissipating block; a through hole is also formed in the top of the lamp cup, and the number and position of the through hole are opposite to the LED light source The number corresponds to the installation position; the lamp cup is fixed to the lower portion of the heat dissipation block, and each of the LED light sources mounted on the heat dissipation block passes through the corresponding through hole to enter the lamp cup Internally; sealing is performed by using the sealing member to form a closed cavity between the transparent cover, the lamp cup and the LED light source; the heat dissipation block and the lamp cup may be separated or integrated structure.

Another technical solution for achieving the object of the present invention is as follows:

An LED light source module comprising: a light transmissive cover, a plurality of LED light sources, a sealing member, a flexible circuit board, a lamp body and at least two end caps; wherein each of the LED light sources is electrically connected to the flexible circuit board The translucent cover is mounted on a lower portion of the lamp body; and is characterized by:

The lamp body includes an elongated top portion and side wings extending downward from two side edges of the top portion; a top portion of the lamp body forms a heat dissipation block; and the end cover is respectively disposed at an end of the lamp body ;

Having a receiving hole on the flexible circuit board, the number and position of the receiving hole correspond to the number of LED light sources and the mounting position; the flexible circuit board is pasted on the inner side of the heat dissipation block; Each of the LED light sources is directly soldered to a surface of the inner side of the heat dissipating block through a receiving hole of the flexible circuit board; sealing is performed using the sealing member, thereby causing the translucent cover, the A sealed cavity is formed between the LED light source, the lamp body and the end cap.

Preferably, the LED light source module further includes a top reflector and at least two side reflectors; wherein the side reflectors are respectively disposed on inner sides of the two side wings of the lamp body; A through hole is also formed in the upper portion, and the number and position of the through hole correspond to the number of LED light sources and the mounting position; the top reflector is fixed at a lower portion of the heat dissipation block, and is mounted on the heat dissipation Each of the LED light sources on the block passes through a corresponding through hole into the interior of the lamp body.

Preferably, a heat dissipation rib is further disposed on an outer side of the heat dissipation block of the LED light source module.

The present invention also provides a luminaire comprising one or more of the above LED light source modules.

In the utility model, since the LED light source is in direct contact with the heat dissipating block, and the heat dissipating ribs are disposed on the outer side, the heat generated by the LED light source can be quickly dissipated, thereby ensuring the normal working of the LED light source with a larger power. The required working ambient temperature extends the life of the LED luminaire. In the utility model, the lamp cup adopts a mirror aluminum plate with high reflectivity, or a reflector plate is arranged in the lamp body to form an optical reflection system, redistributing light generated by the LED light source, thereby enhancing light reflection and improving the entire module. The light effect. The LED light source module of the utility model can be used as a light source of a downlight, a grille lamp and the like, and has low power consumption and soft light color. The utility model adopts the module mode, can be directly installed without disassembly during installation, and can also be made into various shapes of light belts, combined lamps, etc., and has good interchangeability. In short, the utility model has the advantages of reasonable structure, good heat dissipation, good interchangeability and integrity, easy manufacture and assembly, and low production cost.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

1 is a cross-sectional view showing a first embodiment of an LED light source module of the present invention;

2 is a schematic perspective view of the LED light source module shown in FIG. 1;

3 is a schematic exploded perspective view of the LED light source module shown in FIG. 2;

4 is a schematic view of the LED light source module shown in FIG. 1 applied to an embedded downlight;

Figures 5 and 6 are schematic views of the LED light source module shown in Figure 1 applied to a square and cylindrical ceiling-mounted downlight;

7 is a cross-sectional view of a second embodiment of the LED light source module of the present invention, wherein the LED light sources are arranged in a single row;

8 and 9 are schematic views of other variations of the LED light source module shown in FIG. 7, wherein the LED light sources are respectively arranged in two rows and three rows;

10 is a perspective structural view of the LED light source module shown in FIG. 7;

11 is a schematic exploded perspective view of the LED light source module shown in FIG. 7;

12 and FIG. 13 are respectively a bottom view and a top perspective view of the LED light source module shown in FIG. 7 applied to the grid lamp.

The reference numerals are as follows:

1. Translucent cover; 2. Light cup; 3. LED light source; 4. Sealing piece; 5. Flexible circuit board; 61. Heat sink block; 62. Heat radiating rib; 7. Lamp body; 8. End cap; Top reflector; 92, side reflector. detailed description

Example 1

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the LED light source module in this embodiment is an LED light source module having six LED light sources, and the six LED light sources 3 may be a monochromatic light source, or Red, green and blue (RGB) tri-color source. The LED light source module comprises a transparent cover 1, a light cup 2, an LED light source 3, a sealing port 4, a flexible circuit board 5, a heat dissipation block 61 and a heat dissipation rib 62.

Wherein, six accommodating holes are opened in the flexible circuit board 5, and the positions of the accommodating holes correspond to the mounting positions of the LED light source 3; the flexible circuit board 5 is pasted on the inner side of the heat radiating block 61; each LED light source 3 is worn A receiving hole of the flexible circuit board 5 is directly soldered to the inner surface of the heat slug 61 to improve the heat dissipation effect. Each LED light source 3 is electrically connected to the flexible circuit board 5 through a pin.

Six through holes are also formed in the top of the lamp cup 2, and the positions of the through holes correspond to the mounting positions of the LED light source 3; the lamp cup 2 is fixed to the lower portion of the heat sink block 61, and each of the heat sink blocks 61 is mounted thereon. The LED light sources 3 pass through the corresponding through holes and enter the inside of the lamp cup 2.

The translucent cover 1 is mounted on the lower portion of the lamp cup 2. The translucent cover 1 can be made of transparent white glass or prismatic plexiglass (PMMA) or other material having good heat transmissibility.

The seal 圏 4 is used to seal between the upper portion of the lamp cup 2 and the heat sink block 61, so that a sealed cavity is formed between the light-transmitting cover 1, the lamp cup 2 and the LED light source 3, and has a dustproof function.

In this embodiment, the heat sink block 61 and the lamp cup 2 are of a separate structure. The lamp cup 2 can be made of a mirror glass with high reflectivity to enhance the reflection of light and improve the light efficiency of the entire module.

The inner side surface of the lamp cup 2 may be parabolic or conical, may be quadrangular pyramidal, or may be other pyramids or prismatic. The heat sink block 61 and the lamp cup 2 can also adopt an integrated structure.

The heat dissipating block 61 can be a flat plate structure formed by extruding an aluminum alloy, and a heat dissipating strip 6 ^{2 is} disposed on the outer side to facilitate the dissipation of heat on the heat dissipating rib 62 by air convection and heat radiation, thereby ensuring the normal operation of the LED light source. The working ambient temperature thus extends the life of the LED luminaire. The heat dissipation ribs 62 may be parallel strips, radial or other shapes, and depending on the distribution of temperature gradients, the heat dissipation ribs 62 may have different heights and be distributed in an arc shape. The LED light source module according to the embodiment can be used in embedded, ceiling-mounted and other forms of lamps; can be used for circular lamps, square lamps, and other forms of lamps. As shown in FIG. 4, the LED light source module of this embodiment is mounted in a recessed downlight.

As shown in Figs. 5 and 6, the LED light source modules according to the present embodiment are respectively mounted in square and cylindrical ceiling downlights.

Among them, the LED light source 3 can be used in different numbers to form LED light source modules of different sizes and powers, so as to meet the requirements of different lamps for size and power. Example 2

As shown in FIG. 7, FIG. 10 and FIG. 11, the LED light source module of the embodiment is a single-row LED light source module with 15 LED light sources, including a transparent cover 1, an LED light source 3, a sealing strip 4, and a flexible The circuit board 5, the lamp body 7, the two end covers 8, the top reflector 91 and the two side reflectors 92.

Among them, the lamp body 7 is formed by extrusion using an aluminum alloy, and includes an elongated top portion and side wings extending downward from both side edges of the top portion. The heat dissipating block 61 is formed on the top of the lamp body 7, that is, the heat dissipating block 61 and the lamp body 7 are integrated (in other embodiments, the heat dissipating block 61 and the lamp body 7 may also be separate structures).

15 accommodating holes are opened in the flexible circuit board 5, and the positions of the accommodating holes correspond to the mounting positions of the LED light source 3; the flexible circuit board 5 is pasted on the inner side of the heat radiating block 61; each LED light source 3 passes through the flexible circuit A receiving hole of the plate 5 is directly soldered to the inner surface of the heat sink block 61 to improve the heat dissipation effect. Each LED light source 3 is electrically connected to the flexible circuit board 5 through a pin.

15 through holes are also formed in the top reflector 91, and the positions of the through holes correspond to the mounting positions of the LED light source 3; the top reflector 91 is fixed to the lower portion of the heat sink 61, and is mounted on the heat sink 61. Each LED light source 3 passes through a corresponding through hole and enters the inside of the lamp body 7. The two side reflectors 92 (in other embodiments, the side reflectors 92 may be two or more) are respectively mounted in slots in the inner side of the two side wings of the lamp body 7. The top reflector 91 and the side reflector 92 constitute an optical reflection system for redistributing the light generated by the LED light source 3 to improve the light efficiency of the entire module.

The translucent cover 1 is mounted in a slot in the lower portion of the lamp body 7. The translucent cover 1 can be made of transparent white glass with high transmittance, prismatic plexiglass (PMMA), or other materials with good heat resistance and transparency.

The end cap 8 is made of a flame-retardant polymer material, and the two end caps 8 are respectively fixed to both end portions of the lamp body 7 by means of bonding or screws. Sealing is performed using the sealing strip 4, and the sealing strip 4 is disposed between the translucent cover 1 and the lamp body 7 to form a closed cavity between the translucent cover 1, the LED light source 3, the lamp body 7 and the end cap 8, Dustproof function. The shape of the cavity may be trapezoidal, square, semi-circular, parabolic or other shapes. A heat dissipating rib 62 is disposed on the outer side of the heat dissipating block 61 to facilitate the dissipation of heat on the heat dissipating rib 62 by air convection and heat radiation to ensure the working environment temperature required for the normal operation of the LED light source, thereby prolonging the service life of the LED lamp. . The heat dissipation ribs 62 may be parallel strips, radial or other shapes, and depending on the distribution of the temperature gradients, the heat dissipation ribs 62 may have different heights and be distributed in an arc shape.

As shown in Fig. 8 and Fig. 9, the LED light sources 3 in the LED light source module are arranged in two rows and three rows, respectively. In other embodiments, the LED light sources 3 can also be arranged in other forms of arrays. The LED light source 3 may be monochromatic light or a combination of colors.

The LED light source module according to the embodiment can replace the existing low-power LED straight tube light source and T8, Τ5 straight tube fluorescent lamp, and is applicable to two-tube, three-tube, four-tube and embedded, ceiling-mounted lamps. Grille fixtures. Figure 12 and Figure 13 show the overall effect of the LED light source module shown in Figure 7 applied to a three-tube embedded grille lamp. The LED light source 3 can be used in different numbers to form modules of different sizes and powers to suit different lamp sizes and power requirements.

The utility model not only has good heat dissipation effect, strong interchangeability, unique structure and convenient maintenance, and uses high-power LED as a light source, and can use various monochromatic lights, and can be used together with various grid lamps.

Claims

Rights request

1. An LED light source module comprising a light transmissive cover (1), a lamp cup (2), a plurality of LED light sources (3), a sealing member (4), a flexible circuit board (5) and a heat dissipation block (61); Wherein each of the LED light sources (3) is electrically connected to the flexible circuit board (5); the light transmissive cover (1) is installed at a lower portion of the lamp cup (2); The flexible circuit board (5) is provided with an accommodating hole, and the number and position of the accommodating holes correspond to the number of the LED light sources (3) and the mounting position; the flexible circuit board (5) is pasted Inside the heat dissipating block (61); each of the LED light sources (3) is directly soldered to a surface of the inner side of the heat dissipating block (61) through a receiving hole of the flexible circuit board (5) a through hole is also formed at the top of the lamp cup (2), the number and position of the through holes corresponding to the number and mounting position of the LED light source (3); the lamp cup (2) is Fixed to a lower portion of the heat dissipation block (61), and passes each of the LED light sources (3) mounted on the heat dissipation block (61) through a phase Entering the inside of the lamp cup (2) through the through hole; sealing with the sealing member (4), so that the light transmissive cover (1), the lamp cup (2) and the LED light source (3) forming a closed cavity; the heat sink block (61) and the lamp cup (2) may be of a separate or integrated structure.

2. The LED light source module according to claim 1, wherein: the heat dissipation block (61) and the lamp cup (2) are separated structures, and the lamp cup (2) is a mirror aluminum plate with high reflectivity. .

3. An LED light source module comprising a light transmissive cover (1), a plurality of LED light sources (3), a sealing member (4), a flexible circuit board (5), a lamp body (7) and two end caps (8) Wherein each of the LED light sources (3) is electrically connected to the flexible circuit board (5); the light transmissive cover (1) is mounted on the lower portion of the lamp body (7); : ,

The lamp body (7) includes an elongated top portion and side wings extending downward from both side edges of the top portion; a top portion of the lamp body (7) forms a heat dissipation block (61); the end cover (8) ) respectively disposed at the end of the lamp body ( 7 );

A accommodating hole is formed in the flexible circuit board (5), and the number and position of the accommodating holes correspond to the number and mounting position of the LED light source (3); the flexible circuit board (5) is Pasting on the inner side of the heat dissipation block (61); each of the LED light sources (3) is directly soldered to the inner side of the heat dissipation block (61) through a receiving hole of the flexible circuit board (5) Surface sealing; using the sealing member (4) for sealing, so that the light transmissive cover (1), the LED light source (3), A sealed cavity is formed between the lamp body (7) and the end cap (8).

The LED light source module according to claim 3, further comprising: a top reflector (91) and at least two side reflectors (92); wherein the side reflectors (92) are respectively set On the inner side of the two side wings of the lamp body (7); a through hole is also formed in the top reflector (91), the number and position of the through holes and the number of the LED light sources (3) The mounting position corresponds to; the top reflector (91) is fixed to the lower portion of the heat sink block (61), and each of the LED light sources (3) mounted on the heat sink block (61) passes through Corresponding through holes enter the interior of the lamp body (7).

The LED light source module according to claim 4, wherein the top reflector (91) and the side reflector (92) are high-reflectivity mirror aluminum plates.

The LED light source module according to any one of claims 1 to 4, characterized in that:

A heat dissipation rib (62) is further disposed outside the heat dissipation block (61).

The LED light source module according to claim 6, wherein: the heat dissipation ribs (62) may be parallel strips, radial or other shapes, and the heat dissipation ribs appear different according to the temperature gradient distribution. Height, showing an arc-shaped distribution.

The LED light source module according to any one of claims 1 to 4, wherein: the transparent cover (1) is made of transparent white glass or prismatic plexiglass or other heat resistant high transmittance. A material with good light transmission.

The LED light source module according to any one of claims 1 to 4, wherein the cavity is shaped like a trapezoid, a square, a semicircular arc, a paraboloid or the like.

A luminaire comprising a light source, characterized in that: the light source comprises an LED light source module as claimed in any one of claims 1-4.