CN202082687U

CN202082687U - Low-pressure injection-molded LED (light-emitting diode) module

Info

Publication number: CN202082687U
Application number: CN2011201774887U
Authority: CN
Inventors: 梁俊
Original assignee: SHENZHEN RISHANG OPTO-ELECTRONICS CO LTD
Current assignee: Rishang Optoelectronics Co., Ltd.
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2011-12-21
Anticipated expiration: 2021-05-30

Abstract

The utility model provides a low-pressure injection-molded LED (light-emitting diode) module, which comprises an aluminum baseplate and LED lamp beads arranged on the aluminum baseplate, wherein a lens is positioned above the LED lamp beads, a radiator is close to the lower surface of the aluminum baseplate, a PA (polyamide) hot melt adhesive layer is used for coating the radiator, the aluminum baseplate and the lens, and a connecting conducting wire is connected with the aluminum baseplate and led out of two sides of the PA hot melt adhesive layer. The low-pressure injection-molded LED module adopts low-pressure injection molding process for completely sealing the radiator, the aluminum baseplate and the lens, so that the appearance is attractive and unique, the structure is compact, and the waterproof and dustproof effects are great; as a light source part adopts a high-power LED, the illuminating angle of a product is large and the number of arranged lamps in a unit area can be greatly reduced.

Description

Low-pressure injection molding LED module

Technical field

The utility model relates to a kind of LED module, and this module adopts low-pressure injection molding to form, and belongs to LED lighting engineering application.

Background technology

In the LED application industry, the LED module is because of its super brightness, and characteristics such as low-power consumption, irradiated area are big, simple installation are widely used in places such as advertising lamp box, sign signboard, propaganda Warning Mark.Along with the maturation gradually of LED module technology, its range of application is more extensive.

But the LED module overwhelming majority on the market is to adopt the small-power module at present, needs a large amount of led light sources when the cloth lamp, thereby has improved cost.On sealing technology, adopt mostly and irritate epoxy resin, treat that colloid solidifies the back to play the water proof and dust proof effect, because the not anti-UV of epoxy resin itself, characteristic such as easily aging, after the long-term work, the water proof and dust proof performance of module is low with senior general, brings unstable factor also to bury hidden danger for the electrical safety aspect in user's use.

But existing LED module exists following weak point: 1, existing module lighting angle is big inadequately, and irradiated area is wide inadequately; 2, existing module heat dispersion is general, can reduce the performance of LED after work a period of time; 3, existing module power is little, and cloth lamp quantity is many in the unit are.These have all limited the application of LED module.

The utility model content

The utility model promptly is the above-mentioned defective that exists in the existing LED module, and a kind of employing low-pressure injection molding LED module is provided.

Mentality of designing of the present utility model is that aluminium base and lens are fixed on the radiator (die casting aluminium), by low-pressure injection molding radiator and aluminium base and lens is all wrapped up, and reaches the water proof and dust proof effect.

Specifically, low-pressure injection molding LED module described in the utility model, wherein, described LED module comprises aluminium base and the LED lamp pearl that is arranged on the aluminium base, lens are positioned at LED lamp pearl top, and radiator is close to the aluminium base below, and the PA hot melt adhesive layer coats radiator, aluminium base and lens, connect lead and be connected, and draw by PA hot melt adhesive layer both sides with aluminium base.

Described low-pressure injection molding LED module adopts low-pressure injection molding technology that radiator and aluminium base and lens are all wrapped up.

Described low-pressure injection molding LED module, wherein, the number of described LED lamp pearl is more than one.

Described low-pressure injection molding LED module, wherein, described LED lamp pearl comprises large-power LED light bead.Certainly, this product also is not limited to large-power LED light bead, and middle power and low-power LED lamp pearl also can be used.

Described low-pressure injection molding LED module, wherein, the material of described radiator comprises metallic aluminium.

Described low-pressure injection molding LED module, wherein, the irradiating angle of described LED lamp pearl reaches 160 °.

PA claims polyamide again, is that U.S. DuPont company develops the resin that is used for fiber at first, realizes industrialization in nineteen thirty-nine.Begin exploitation the 1950's and produce injection-molded item, with substituted metal, the requirement that satisfy the lightweight of downstream industry goods, reduces cost.PA has good comprehensive performances, comprise mechanical property, hear resistance, mar proof, chemical proofing and self lubricity, and coefficient of friction is low, certain anti-flammability is arranged, be easy to processing, be suitable for, improve performance and enlarge range of application with glass fibre and other filler filling enhancing modified.PA's is various in style, and PA6, PA66, PAll, PAl2, PA46, PA610, PA612, PAl010 etc. are arranged, and a lot of new varieties such as the semi-aromatic nylon PA6T of exploitation in recent years and extraordinary nylon.

PUR is a kind of plastic adhesive, and its physical state changes with temperature change in certain temperature range, and chemical characteristic is constant, and it is nonpoisonous and tasteless, belongs to the environmental-protecting chemical product.PUR is bonding to be to utilize hot melt adhesive machine by heating power PUR to be fused, and the glue behind the melten gel becomes a kind of liquid, by the hot melt pipe and the thermosol gelgun of hot melt adhesive machine, delivers to the adherend surface, has promptly finished bonding after the PUR cooling.

Low pressure injection formaing technology is by using very little injection pressure that encapsulating material is injected the also packaging process of fast curing-formed (5～50 seconds) of mould, to reach effects such as insulation, high-low temperature resistant, shock resistance, vibration damping, protection against the tide, waterproof and dustproof, oil resistant, resistance to chemical attack.

Low-pressure injection molding LED module described in the utility model has the following advantages:

1, adopt low-pressure injection molding technology, the only special ﹑ compact conformation of profile ﹑ attractive in appearance has good water proof and dust proof effect;

2, light source partly adopts great power LED, and the product irradiating angle is big, can significantly reduce cloth lamp quantity in the unit are;

3, adopt low-pressure injection molding, littler to the light source and the electrical equipment influence of LED module than traditional vertical injection moulding.

Description of drawings

Fig. 1 is the external structure schematic diagram of the utility model embodiment;

Fig. 2 is the cross-sectional view of the utility model embodiment;

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

Fig. 4 is the cross-sectional view of another embodiment of the utility model;

Wherein, 1 is that PA hot melt adhesive layer, 2 is that lens, 3 are that LED lamp pearl, 5 is that aluminium base, 6 is a radiator for connecting lead, 4.

The specific embodiment

Below in conjunction with accompanying drawing; low-pressure injection molding LED module described in the utility model is described; purpose is better to understand technology contents described in the utility model for the public; rather than to the restriction of described technology contents; in fact, with identical with the utility model or approximate principle to the improvement that described LED module carries out, comprise increase and decrease and replacement to corresponding construction; and the change of shape, size, material, all within the utility model technical scheme required for protection.

Shown in Fig. 1-2, specifically, low-pressure injection molding LED module described in the utility model, comprise aluminium base 5 and the LED lamp pearl 4 that is arranged on the aluminium base 5, lens 2 are positioned at LED lamp pearl 4 tops, radiator 6 is close to aluminium base 5 belows, PA hot melt adhesive layer 1 coats radiator 6, aluminium base 5 and lens 2, connecting lead 3 is connected with aluminium base 5, and draw by PA hot melt adhesive layer 1 both sides, described LED module adopts low-pressure injection molding technology that radiator 6 and aluminium base 5 and lens 2 usefulness PA PURs are all wrapped up, reaching the excellent waterproof effect, and compact conformation.

Shown in Fig. 3 and 4, described low-pressure injection molding LED module, wherein, the number of described LED lamp pearl is more than one, in Fig. 3, is single LED lamp pearl, and in Fig. 4, then is many (three) LED lamp pearls; Described LED lamp pearl comprises large-power LED light bead, and certainly middle power or low-power LED lamp pearl also can be used, and adopt lens, can make the irradiating angle of described LED lamp pearl reach 160 °, the product irradiating angle is big, can significantly reduce cloth lamp quantity in the unit are, has broad application prospects.

Claims

1. low-pressure injection molding LED module, it is characterized in that: described LED module comprises aluminium base and the LED lamp pearl that is arranged on the aluminium base, lens are positioned at LED lamp pearl top, radiator is close to the aluminium base below, the PA hot melt adhesive layer coats radiator, aluminium base and lens, connect lead and be connected, and draw by PA hot melt adhesive layer both sides with aluminium base.

2. low-pressure injection molding LED module according to claim 1 is characterized in that: the number of described LED lamp pearl is more than one.

3. low-pressure injection molding LED module according to claim 1 is characterized in that: described LED lamp pearl comprises large-power LED light bead.

4. low-pressure injection molding LED module according to claim 1, it is characterized in that: the material of described radiator comprises metallic aluminium.

5. low-pressure injection molding LED module according to claim 1 is characterized in that: the irradiating angle of described LED lamp pearl reaches 160 °.