CN202281104U

CN202281104U - Low thermal resistance LED lamp support

Info

Publication number: CN202281104U
Application number: CN2011204306499U
Authority: CN
Inventors: 吴国锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-03
Filing date: 2011-11-03
Publication date: 2012-06-20
Anticipated expiration: 2021-11-03

Abstract

The utility model relates to a low thermal resistance LED lamp support comprising a heat dissipation body and a light transmission plastic housing, which are extended along the length direction, and are buckled together in an upper-lower manner. The heat dissipation body and the light transmission plastic housing are buckled together respectively by hanging buckling protruding parts of extension ends of two sides and hooks with hanging buckling concave parts. A circuit board of and LED illuminant is tightly attached to an inner end surface of the heat dissipation body covered by the light transmission plastic housing. Elastic pressing sheets of the pressing circuit board are respectively inclinedly extended from the light transmission plastic housing with respect to two sides of the circuit board. The LED lamp support, which is capable of dissipating heat quickly and adopts the above mentioned structure, has advantages of simple, reasonable, tight structure, and abilities of improving the heat transfer efficiency between the circuit board and the radiator, increasing the creepage distance, reducing the light decay phenomenon, prolonging the service lifetime of the LED lamp, and reducing the brightness decay. Two sides of the radiator plane are free of traditional groove hooks, thereby the light can be prevented from being shielded by the hooks, the luminescence angle can be increased, the light extraction efficiency can be improved, and the installation can be convenient.

Description

A kind of LED lamp support of low thermal resistance

Technical field

The utility model relates to a kind of LED lamp support, but relates in particular to a kind of LED lamp support of quick heat radiating.

Background technology

At present; The LED light fixture is equipped with good energy-saving effect and is widely used in lighting field; But the LED lamp is higher to the temperature requirement of working environment simultaneously, so must be provided with the good radiator structure of structure simultaneously, could guarantee that the service life of LED lamp is less than length and brightness decay; Existing LED lamp support; Like Fig. 1-shown in Figure 2, the flange 101 of plastic jacket 1 through the left and right sides be sheathed to be gone in the guide groove 201 of radiator 2 both sides connection is installed, and wherein radiator 2 both sides of plastic jacket 1 top are extended with the cushion cap 202 that supporting is equipped with circuit board 3; During installation; Be equally with circuit board 3 along the sheathed other end that extends to of cushion cap 202 1 ends, 1), owing to be to connect with sheathed form there is following defective in this structure LED lamp support:, cushion cap 202 upper groove 202-1 must reserve abundant space could let circuit board 3 sheathed entering; Cause install after; Produce slit 4 between circuit board 3 and the radiator 2, the circuit board that the LED lamp is housed in actual use is generally to lower angle to be installed, and can produce bigger slit; Greatly reduce the heat transference efficiency between circuit board 3 and the radiator 2, thereby reduce the service life and the brightness decay of accelerating LED lamp 5 of the LED lamp 5 on the circuit board 4; 2), have again; When going on the cushion cap 202 groove 202-1, wipe off, reduces the heat transfer effect between circuit board 3 and the radiator 2 by the heat-conducting silicone grease that will be coated in advance on the radiator 2 easily sheathed for circuit board 3; Owing to adopt guide tracked insert structure; Make between circuit board 3 and the radiator 2 to get loose easily when mounted, send sound, transportation produces vibrations and causes that easily the electronic component rosin joint comes off etc.; 3), because radiator 2 both sides exist to connect the cushion cap 202 of supporting circuit board 3, when LED lamp 5 was luminous, part light was blocked by the cushion cap 202 of both sides, has reduced the irradiating angle of light, thus the irradiated area that has reduced light with reduced light extraction efficiency; 4), because radiator is made of metal and is exposed to the shell of product usually, cushion cap 202 is easy to generate burr when producing in batches, and the creep age distance between the circuit board is easy to generate the arc through phenomenon, is difficult to detect through safety.

Summary of the invention

The purpose of the utility model is to solve the deficiency of above-mentioned prior art; And provide a kind of simple and reasonable for structure, compact, and improve the heat transference efficiency between circuit board and the radiator, prolong LED lamp service life; The brightness decay of slowing down, and the LED lamp support of quick heat radiating easily is installed.

The utility model solves the technical scheme that its technical problem adopted: a kind of LED lamp support of low thermal resistance; Comprise the radiator and the light-passing plastic cover that are length direction extension and upper and lower mutual snapping; It is characterized in that; Said radiator and light-passing plastic cover be buckling protuberance and being with the mutual snapping of Hook that buckles recess through the both sides extending end respectively; The radiator inner face that is covered with by the light-passing plastic cover is glued with the circuit board that the LED illuminator is installed, and the light-passing plastic cover updip inclined of corresponding circuits plate both sides is extended with the elastic pressuring plate that compresses circuit board respectively; Adopt the LED lamp support of the quick heat radiating of this structure; Installation between radiator and the light-passing plastic cover adopts the Hook that band on protuberance and the light-passing plastic cover buckles recess that buckles on the radiator to carry out snapping each other; During snapping, the Hook that the band of light-passing plastic cover one side buckles recess snapping is in advance gone into buckling on the protuberance of a side on the radiator, because the light-passing plastic cover that plastic body is processed has certain plasticity; The Hook that the band of its opposite side buckles recess is tightly gone into the formula snapping again and is gone into buckling on the protuberance of radiator opposite side; Promptly accomplish being connected of radiator and light-passing plastic cover, it connects simple, rationally, and is quick, compact; Moreover; The circuit board that the LED illuminator is installed directly is bonded on the radiator inner face; The heat that sends during its work is directly taken away by radiator, effectively improves heat transference efficiency and creep age distance between circuit board and the radiator, has reduced the light decay phenomenon; Prolong LED lamp service life, its brightness decay is slow; Have again; Corresponding light-passing plastic cover both sides are extended with the elastic pressuring plate that behind radiator and the mutual snapping of light-passing plastic cover, can compress circuit board; Both sides, radiator plane cancellation groove structure body; Avoid causing light to block, enlarged lighting angle, thereby make the real 180 degree light-emitting areas of realizing of LED illuminator.

The utility model can also adopt following technical measures to solve: as improvement further, said radiator outer face longitudinal extension has a plurality of radiating fins, and each radiating fin is provided with ripple glaze in its surface of outward inclining respectively; The setting of ripple glaze increases the area of dissipation of radiating fin, the scattering and disappearing of accelerated heat; In addition, the shaped design of this fin is compared with plane formula, except increasing under the identical appearance and size the surface area of radiator, and the fine vortex phenomenon that has produced when also having strengthened with the air thermal convection current, thus accelerated radiating rate.

The recess that buckles that buckles protuberance and Hook of said mutual snapping is provided with the circular arc chamfering face; The setting of circular arc chamfering face, what be convenient to buckle protuberance and Hook buckles snapping between the recess along sliding, improves installation effectiveness.

Said elastic pressuring plate is the thin plate shape, is tilting by the inner face of light-passing plastic cover and extends to the circuit board both sides, and terminal the compressing with the circuit board two-side elastic of elastic pressuring plate offsets when making the mutual snapping of radiator and light-passing plastic cover; The elastic pressuring plate that is the thin plate shape of tilting setting possesses on the better elastic basis elastic pressuring plate; Can not damage circuit board by pressure, can press circuit board again itself and radiator inner face are close to, and have only its end and circuit board to compress to offset; Reduce heat by the elastic pressuring plate transmission; Reduce the temperature deformation of light-passing plastic cover, guaranteed the light scattering area of LED illuminator, effectively enlarged the range of exposures of light etc.

Said elastic pressuring plate and light-passing plastic cover are monolithic; Increase the intensity of elastic pressuring plate, need not mounting screw or other securing members, reduce production costs.

Said LED illuminator is welded on circuit board surface through SMD encapsulation paster technique, and SMD encapsulation paster technique is ripe, and working (machining) efficiency is high, and yield rate is high, and luminous efficiency is high, and high conformity is convenient to safeguard.

Said LED illuminator and circuit board are for adopting the disposable encapsulated LED lamp plate of COB technology; The advantage of COB technology is to save a packaging cost, photo engine module cost of manufacture and the secondary light-distribution cost of LED; The COB encapsulation is meant that led chip directly carries out bundled encapsulation on substrate, and in the lighting system of identical function, actual measuring and calculating can reduce the light source cost about 30%; The COB light source module can be avoided drawbacks such as some light that the discrete light sources combination of devices exists, dazzle effectively; Can also under the not obvious reduction source efficiency and the prerequisite in life-span, improve the colour rendering of light source effectively through adding suitable red chip combination; On using, it is simpler and convenient that the COB light source module can make the installation of lighting factory produce, and reduced application cost effectively.

The beneficial effect of the utility model is: the LED lamp support of a kind of low thermal resistance of (1), the utility model; Adopt the LED lamp support of the quick heat radiating of this structure; Installation between radiator and the light-passing plastic cover adopts the Hook that band on protuberance and the light-passing plastic cover buckles recess that buckles on the radiator to carry out snapping each other; During snapping, the Hook that the band of light-passing plastic cover one side buckles recess snapping is in advance gone into buckling on the protuberance of a side on the radiator, because the light-passing plastic cover that plastic body is processed has certain plasticity; The Hook that the band of its opposite side buckles recess is tightly gone into the formula snapping again and is gone into buckling on the protuberance of radiator opposite side; Promptly accomplish being connected of radiator and light-passing plastic cover, it connects simple, rationally, and is quick, compact.

(2), the LED lamp support of a kind of low thermal resistance of the utility model; The circuit board that the LED illuminator is installed directly is bonded on the radiator inner face; The heat that sends during its work is directly taken away by radiator, effectively improves heat transference efficiency and creep age distance between circuit board and the radiator, has reduced the light decay phenomenon; Prolong LED lamp service life, its brightness decay is slow.

(3), the LED lamp support of a kind of low thermal resistance of the utility model; Have, corresponding light-passing plastic cover both sides are extended with the elastic pressuring plate that behind radiator and the mutual snapping of light-passing plastic cover, can compress circuit board again, both sides, radiator plane cancellation groove Hook; When avoiding producing burr because of production technology; Also avoid causing light to block, enlarged lighting angle, thereby make the real 180 degree lighting angles of realizing of LED illuminator.

Description of drawings

Fig. 1 is the prior art constructions sketch map.

Fig. 2 is another kind of prior art constructions sketch map.

Fig. 3 is the structural representation of the utility model.

Fig. 4 is the structural representation of another angle of the utility model.

Fig. 5 is the structural representation of light-passing plastic cover in the utility model.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Extremely shown in Figure 5 like Fig. 3; A kind of LED lamp support of low thermal resistance; Comprise the radiator 1 and light-passing plastic cover 2 that are length direction extension and upper and lower mutual snapping; Said radiator 1 and light-passing plastic cover 2 be buckling protuberance 101 and being with the Hook 201 mutual snappings that buckle recess 201-1 through the both sides extending end respectively; Radiator 1 inner face 102 that is covered with by light-passing plastic cover 2 is glued with the circuit board 4 that LED illuminator 3 is installed, and the light-passing plastic cover 2 updip inclineds of corresponding circuits plate 4 both sides are extended with the elastic pressuring plate 202 that compresses circuit board 4 respectively; Adopt the LED lamp support of the quick heat radiating of this structure; Installation between radiator 1 and the light-passing plastic cover 2 adopts the protuberance 101 that buckles on the radiator 1 to carry out snapping each other with the Hook 201 that band on the light-passing plastic cover 2 buckles recess 201-1; During snapping; The Hook 201 that the band of light-passing plastic cover 2 one sides buckles recess 201-1 snapping is in advance gone into buckling on the protuberance 101 of a side on the radiator 1; Because the light-passing plastic cover 2 processed of plastic body has certain plasticity, the Hook 201 that the band of its opposite side buckles recess 201-1 is tightly gone into the formula snapping again and is gone into buckling on the protuberance 101 of radiator 1 opposite side, promptly accomplishes being connected of radiator 1 and light-passing plastic cover 2; It connects simple, reasonable, quick, compact; Moreover; The circuit board 4 that the LED illuminator is installed directly is bonded on radiator 1 inner face 102, and the heat that sends during its work is directly taken away by radiator 1, effectively improves the heat transference efficiency between circuit board 4 and the radiator 1; Prolong 3 service lifes of LED illuminator, its brightness decay is slow; Have again; Corresponding light-passing plastic cover 2 both sides are extended with the elastic pressuring plate 202 that behind radiator 1 and light-passing plastic cover 2 mutual snappings, can compress circuit board 4; Both sides, radiator 1 plane cancellation groove structure body avoids causing light to block, thereby makes the LED illuminator 3 real 180 degree light-emitting areas of realizing.

As improvement further, said radiator 1 outer face 103 longitudinal extensions have a plurality of radiating fin 103-1, and each radiating fin 103-1 is provided with ripple glaze 103-1a in its surface of outward inclining respectively; The setting of ripple glaze 103-1a increases the area of dissipation of radiating fin 103-1, the scattering and disappearing of accelerated heat.

The recess 201-1 that buckles that buckles protuberance 101 and Hook 201 of said mutual snapping is provided with circular arc chamfering face 101-1,201-1a; The setting of circular arc chamfering face 101-1,201-1a, what be convenient to buckle protuberance 101 and Hook 201 buckles snapping between the recess 201-1 along sliding, improves installation effectiveness.

Said elastic pressuring plate 202 is the thin plate shape, is tilting by the inner face of light-passing plastic cover 2 and extends to circuit board 4 both sides, and terminal and circuit board 4 two-side elastics of elastic pressuring plate 202 compress and offset when making the mutual snapping of radiator 1 and light-passing plastic cover 2; The elastic pressuring plate 202 that is the thin plate shape of tilting setting possesses on the better elastic basis elastic pressuring plate 202; Can not damage circuit board 4 by pressure, can press circuit board 4 again itself and radiator 1 inner face 102 are close to, and have only its end and circuit board 4 to compress to offset; Reduce heat by the elastic pressuring plate transmission; Reduce the temperature deformation of light-passing plastic cover, guaranteed the light scattering area of LED illuminator 3, effectively enlarged the range of exposures of light etc.

Said elastic pressuring plate 202 is a monolithic with light-passing plastic cover 2; Increase the intensity of elastic pressuring plate 202, need not mounting screw or other securing members, reduce production costs.

Said LED illuminator 3 is welded on circuit board 4 surfaces through SMD encapsulation paster technique, and SMD encapsulation paster technique is ripe, and working (machining) efficiency is high, and yield rate is high, and luminous efficiency is high, and high conformity is convenient to safeguard.

Said LED illuminator 3 is the disposable encapsulated LED lamp plate of employing COB technology with circuit board 4; The advantage of COB technology is to save a packaging cost, photo engine module cost of manufacture and the secondary light-distribution cost of LED; The COB encapsulation is meant that led chip directly carries out bundled encapsulation on substrate, and in the lighting system of identical function, actual measuring and calculating can reduce the light source cost about 30%; The COB light source module can be avoided drawbacks such as some light that the discrete light sources combination of devices exists, dazzle effectively; Can also under the not obvious reduction source efficiency and the prerequisite in life-span, improve the colour rendering of light source effectively through adding suitable red chip combination; On using, it is simpler and convenient that the COB light source module can make the installation of lighting factory produce, and reduced application cost effectively.

Above-described specific embodiment is merely the utility model preferred embodiment, the equivalent arrangements of being done according to the utility model claim such as, and the technology that all should be the utility model contains.

Claims

1. the LED lamp support of a low thermal resistance; Comprise the radiator (1) and the light-passing plastic cover (2) that are length direction extension and upper and lower mutual snapping; It is characterized in that; Said radiator (1) and light-passing plastic cover (2) buckle Hook (201) that protuberance (101) and band buckle recess (201-1) snapping each other through the both sides extending end respectively; Radiator (1) inner face (102) that is covered with by light-passing plastic cover (2) is glued with the circuit board (4) that LED illuminator (3) are installed, and light-passing plastic cover (2) the updip inclined of corresponding circuits plate (4) both sides is extended with the elastic pressuring plate (202) that compresses circuit board (4) respectively.

2. according to the LED lamp support of the said low thermal resistance of claim 1; It is characterized in that; Said radiator (1) outer face (103) longitudinal extension has a plurality of radiating fins (103-1), and each radiating fin (103-1) its surface of outward inclining respectively is provided with ripple glaze (103-1a).

3. according to the LED lamp support of the said low thermal resistance of claim 1, it is characterized in that the recess (201-1) that buckles that buckles protuberance (101) and Hook (201) of said mutual snapping is provided with circular arc chamfering face (101-1,201-1a).

4. according to the LED lamp support of the said low thermal resistance of claim 1; It is characterized in that; Said elastic pressuring plate (202) is the thin plate shape; Be tilting by the inner face of light-passing plastic cover (2) and extend to circuit board (4) both sides, make radiator (1) and light-passing plastic cover (2) each other during snapping terminal the compressing of elastic pressuring plate (202) with circuit board (4) two-side elastic offset.

5. according to the LED lamp support of claim 1 or 4 said low thermal resistances, it is characterized in that said elastic pressuring plate (202) and light-passing plastic cover (2) are monolithic.

6. according to the LED lamp support of the said low thermal resistance of claim 1, it is characterized in that said LED illuminator (3) is welded on circuit board (4) surface through SMD encapsulation paster technique.

7. according to the LED lamp support of the said low thermal resistance of claim 1, it is characterized in that said LED illuminator (3) and circuit board (4) are for adopting the disposable encapsulated LED lamp plate of COB technology.