CN105674081A

CN105674081A - Led lamp

Info

Publication number: CN105674081A
Application number: CN201610179047.8A
Authority: CN
Inventors: 叶伟炳
Original assignee: Dongguan Wenyu Industrial Co Ltd
Current assignee: Dongguan Wenyu Industrial Co Ltd
Priority date: 2014-10-25
Filing date: 2014-10-25
Publication date: 2016-06-15

Abstract

The invention discloses an LED lamp which comprises a substrate, a control panel electrically connected with LED lamp beads and a base connected with the substrate. The LED lamp beads are integrally packaged on the surface of the substrate. The base comprises a plurality of radiating holes and switch pieces matched with the radiating holes. The switch pieces are made of shape memory alloy materials. The switch pieces can be bent and deformed in the direction away from the radiating holes when heated to reach a preset temperature value. By means of the LED lamp, the radiating holes can be closed through the switch pieces at the normal temperature, so that the base is in a closed state. When the LED lamp is turned on, the switch pieces made of the shape memory alloy materials can be heated to be bent and deformed in the direction away from the radiating holes, so that the radiating holes are opened, and the radiating efficiency is improved.

Description

LED

Technical field

The present invention relates to a kind of LED, refer specifically to a kind of LED with radiator structure.

Background technology

LED (LightEmittingDiode), i.e. semi-conductor electricity light source, light emitting diode, also referred to as semiconductor lamp, it is a kind of electric light source without filament, directly electric energy is converted into luminous energy.

LED has feature energy-conservation, life-span length, it is to avoid often needs the trouble more changed the bulb, is subject to the favor of increasing user. But, the heat dissipation problem of LED is also Important Problems, and heat dissipation problem badly influences light efficiency and the life-span of LED light source. Traditional LED, it is typically all the cylindrical shape of closing equipped with the base of LED light source, so makes chassis interior air to circulate with the air of outside in time, causes radiating efficiency low, cause that LED light source and power source temperature are too high, thus having had influence on light efficiency and the life-span of LED. Although now with LED base also have a louvre, but for preventing dust moistureproof, its louvre is less, the problem such as cause heat radiation unobstructed not, this also will have influence on the service life of LED.

Summary of the invention

Based on this, it is necessary to provide a kind of radiating efficiency high, the LED of dust and moisture.

This LED includes: surface integration packaging has the panel that the substrate of LED lamp bead electrically connects and the base being connected described substrate with described LED lamp bead, it is characterized in that: described base includes multiple louvre and the switch plate matched with described louvre, described louvre is along the radial direction, equally spaced evenly distributed of described base, and this described louvre is square; Described switch plate is arranged at described louvre edge; Described base is circular tube shaped, and this base outer wall is connected to a plurality of radiating fin, and described louvre is located between adjacent heat radiation fin; Described switch plate is made up of shape memory alloy material, and described switch plate is heated when reaching preset temperature value to produce to the Bending Deformation away from described louvre direction; Forming a cavity in described base, described base inner wall has several inwardly protruded holding sections, and described substrate edges is provided with groove, and described groove is arranged in described holding section.

Wherein in an embodiment, described preset temperature value is 45 DEG C.

Wherein in an embodiment, between described substrate (110) and described base (130) inwall, scribble heat conductive silica gel.

Wherein in an embodiment, described radiating fin (133) is that radioactivity stretches out from the outer wall of described base (130), and described radiating fin (133) is along the arranged radially of base (130).

Above-mentioned LED, at normal temperatures, louvre can be closed by switch plate, makes base be in the state of closing. When opening LED, base and switch plate temperature can gradually rise. Owing to switch plate is made up of shape memory alloy material, therefore switch plate is heated after reaching preset temperature produces, to the Bending Deformation away from louvre direction, to make louvre open, and improves radiating efficiency. And when LED does not use, louvre can be closed by switch plate, be conducive to reducing dust and protection against the tide, LED radiating efficiency and safety can be improved.

Switch plate is arranged on louvre edge and more efficiently can be closed by louvre and open. The a plurality of radiating fin being arranged on base outer wall can provide bigger area of dissipation to help base heat radiation. Scribble heat conductive silica gel between substrate and base and can reduce the thermal resistance of heat transmission, heat transfer efficiency can be improved.

Accompanying drawing explanation

Fig. 1 is the structural representation of the LED louvre closed state of an embodiment of the present invention;

Fig. 2 is the exploded perspective view of LED shown in Fig. 1;

Fig. 3 is the structural representation of LED louvre open mode shown in Fig. 1;

In accompanying drawing, the implication of each label is:

10-LED lamp;

110-substrate, 111-LED lamp bead, 112-groove;

120-panel;

130-base, 131-louvre, 132-switch plate, 133-radiating fin;

134-holding section.

Detailed description of the invention

As depicted in figs. 1 and 2, it is the exploded perspective view of the structural representation of LED 10 of an embodiment of the present invention and Fig. 2 LED 10 of the present invention, and wherein acquiescence Fig. 1 is the structural representation of LED 10 louvre 131 closed state is general state.

This LED 10 includes: surface integration packaging has the panel 120 that the substrate 110 of LED lamp bead 111 electrically connects and the base 130 being connected substrate 110 with LED lamp bead 111. Substrate 110 edge is provided with groove 112, scribbles heat conductive silica gel between substrate 110 and base 130 inwall. Base 130 includes multiple louvre 131 and the switch plate 132 matched with louvre 131, and under general state, louvre 131 can be closed by switch plate 132. Wherein, louvre 131 can be arbitrary shape, it is preferred that for square. Switch plate 132 is arranged at louvre 131 edge. Base 130 outer wall can also be connected to a plurality of radiating fin 133 to improve area of dissipation. Base 130 is tubulose, it is preferred that for circular tube shaped. Louvre 131 is along the arranged radially of base 130, it is preferred that equally spaced evenly distributed. Base 130 inwall has several inwardly protruded holding sections 134, and holding section 134 can be used for card and sets the groove 112 of substrate 110.

With reference to Fig. 3, it is the structural representation of LED 10 louvre 131 open mode of the present invention. Switch plate 132 is made up of shape memory alloy material, and switch plate 132 can produce when being heated and reaching preset temperature value to the Bending Deformation away from louvre 131 direction, in order to opens louvre. Wherein, preset temperature value is 45 DEG C. Radiating fin 133 is that radioactivity stretches out from the outer wall of base 130, and radiating fin 133, along the arranged radially of base 130, considerably increases area of dissipation, improves radiating effect.

Above-mentioned LED 10, under the room temperature of general state, louvre 131 can be closed by switch plate 132, makes base 130 be in the state of closing. When opening LED 10, the heat that LED lamp bead 111 produces is gathered in the cavity that base 130 is closed, and at this moment base 130 and switch plate 132 temperature can gradually rise.Owing to switch plate 132 is made up of shape memory alloy material, and marmem has shape memory effect, its be heated reach preset temperature after can produce deformation. Switch plate 132 is heated after reaching preset temperature to produce to the Bending Deformation away from louvre 131 direction, louvre 131 is made to open, so that base 130 inner air and outside air circulation, make the heat rapid evacuation that LED lamp bead 111 produces in air, improve radiating efficiency. And when LED 10 does not use, louvre 131 can be closed by switch plate 132, be conducive to reducing dust and protection against the tide, LED 10 radiating efficiency and safety can be improved.

Switch plate 132 is arranged on louvre 131 edge and more efficiently can be closed by louvre 131 and open. The a plurality of radiating fin 133 being arranged on base 130 outer wall can provide bigger area of dissipation to help base 130 to dispel the heat. Scribble heat conductive silica gel between substrate 110 and base 130 and can reduce the thermal resistance of heat transmission, heat transfer efficiency can be improved.

Embodiment described above only have expressed the preferred embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims

1. a LED (10), including: surface integration packaging has the substrate (110) of LED lamp bead (111), the panel (120) electrically connected with described LED lamp bead (111) and the base (130) being connected described substrate (110), it is characterized in that: described base (130) includes multiple louvre (131) and the switch plate (132) matched with described louvre (131), described louvre (131) is along the radial direction of described base (130), equally spaced evenly distributed, this described louvre (131) is for square, described switch plate (132) is arranged at described louvre (131) edge, described base (130) is circular tube shaped, and this base (130) outer wall is connected to a plurality of radiating fin (133), and described louvre (131) is located between adjacent heat radiation fin (133), described switch plate (132) is made up of shape memory alloy material, and described switch plate (132) is heated when reaching preset temperature value to produce to the Bending Deformation away from described louvre (131) direction, a cavity is formed in described base (130), described base (130) inwall has several inwardly protruded holding sections (134), described substrate (110) edge is provided with groove (112), and described groove (112) is arranged in described holding section (134).

2. LED according to claim 1 (10), it is characterised in that: described preset temperature value is 45 DEG C.

3. LED according to claim 1 (10), it is characterised in that: scribble heat conductive silica gel between described substrate (110) and described base (130) inwall.

4. LED according to claim 1 (10), it is characterized in that: described radiating fin (133) is that radioactivity stretches out from the outer wall of described base (130), described radiating fin (133) is along the arranged radially of base (130).