CN201715470U

CN201715470U - LED lamp outer sheath type radiating structure

Info

Publication number: CN201715470U
Application number: CN2010202187467U
Authority: CN
Inventors: 廖梓佑
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-08
Filing date: 2010-06-08
Publication date: 2011-01-19
Anticipated expiration: 2020-06-08

Abstract

The utility model discloses an LED lamp outer sheath type radiating structure comprising a lamp socket, a lamp housing and heat-conduction ceramic, wherein the lamp socket is provided with a shell-shaped base shell; one end of the base shell is opened, and the other end thereof is brought together to form an electric conduction part which is connected with LED lamps through leads; the LED lamps are electrically and mutually connected; one end of a radiating component is in heat conduction connection with all the LED lamps, and the other end thereof is fixed at the bottom of the connected end of the base shell; the lamp housing is sheathed at the opening of the base shell; and the heat-conduction ceramic is in a full slice type, one end of the ceramic is connected with all the LED lamps to form a cold end, and the other end thereof is connected with the radiating component to form a hot end. The radiating structure can keep the luminous efficiency of the LED lamp, and prolong the service life of the lamp. When the LED lamp is electrified for use, the cold end and the hot end of the heat-conduction ceramic form thermoelectromotive force simultaneously, and the heat generated by the LED lamp can be fast and evenly diffused to the radiating component by the guide of the thermoelectromotive force, thus keeping the temperature of the lamp below lumens depreciation temperature, and further prolonging the service life of the lamp.

Description

The LED light fixture covers the radiator structure of shell-type outward

Technical field

The utility model relates to the radiator structure that a kind of LED light fixture covers shell-type outward.

Background technology

Very general of the research and development of LED lamp at present, but the Related product of LED lamp does not then appear on the market widely, this mainly be because the LED lamp when electrified light emitting, temperature is very high, when the efficient of the radiator structure that is mated is not good, temperature will localized accumulated, in case the temperature of this LED lamp and radiator structure joint continues to rise, the LED lamp just very easily produces the phenomenon of hot light decay, and luminous efficient reduces, even damage, therefore necessity of improvement arranged.

The form that someone is designed to radiator structure to expose, No. 98216259 " high efficiency LED lamp " patent of TaiWan, China for example, the heat radiation lamp socket directly is designed to have the nonmetal structure of multi-pore structure, though this structure can directly increase area of dissipation, but its radiator structure exposes, not only outward appearance is indecency, and, user's hand can directly touch, the possibility that the scald of causing is arranged, therefore, someone places this radiator structure in the lamp socket, M356856 number " radiator structure of made from porous material lampshade " patent of TaiWan, China for example, its lampshade is made by porous material, and in establish containing hole, luminescence unit is set, the outside is provided with a metallic sheath, but the containing hole inwall of this luminescence unit and lampshade has one section very big distance, the heat that luminescence unit produces conducts to the lampshade place in thermal-radiating mode, outside metallic sheath, loose in air by lampshade again, the heat transfer efficiency of this heat radiation mode is very low, the heat that can't effectively luminescence unit be produced in the unit interval is taken away, luminescence unit still can produce hot improperly tired achievement phenomenon and make temperature be higher than the light decay temperature, produce relative light decay, influence the service life of luminescence unit, therefore, someone has done improvement again, TaiWan, China M319374 number " thermal source on the led lamp disperses radiating module " patent for example, each heat sink centre is concatenated into one, be in contact with one another, each heat sink is the state of level to external diffusion by the serial connection place, in this structure, each heat sink only is in contact with one another in the center, therefore the heat conduction is outwards transmitted downwards by the center fully, transfer mode like this, cause leading the way of heat guiding structure too narrow concentrated, efficient is limited on the contrary, can't be effectively the thermal conductance of light emitting diode be gone out, and also can cause the heat history of light emitting diode part.

The utility model content

The technical problems to be solved in the utility model provides the radiator structure that a kind of LED light fixture covers shell-type outward, and it can keep the luminous efficiency of LED lamp, and can prolong the service life of LED lamp.

For solving the problems of the technologies described above, LED light fixture of the present utility model covers the radiator structure of shell-type outward, comprising:

One lamp socket, has a shelly seat shell, this shell one end becomes the opening shape, the other end is brought together and is formed and the outside power part that electrically connects, this power part connects each LED lamp to seat shell inside with several leads, each LED lamp electrically connects each other, and a radiating subassembly one end is connected the bottom of the fixing present shell collecting end of the other end with each LED lamp heat conduction;

One lamp housing is enclosed within lamp socket seat shell opener place;

The thermal conductive ceramic of whole piece formula, an end are connected with each LED lamp and form cold junction, and the other end is connected with radiating subassembly and forms the hot junction, when cold junction and hot junction produce heat at each LED lamp electrified light emitting, forms thermo-electromotive force simultaneously.

Described radiating subassembly has the area heat conduction panel identical with thermal conductive ceramic, the thermal conductive ceramic hot junction contacts the heat conduction comprehensively with the heat conduction panel, the center of this heat conduction panel other end is provided with a newel, the center of this newel is passed for a gim peg, be locked in a shell bottom, this radiating subassembly is the center with the newel, outwards forms the sheet fin that is extended by the heat conduction panel in the radial mode of the sun, this fin one end is connected with newel, and the other end is connected with heat conduction panel opposing end surface.

The hot junction of described thermal conductive ceramic protrudes out a large-area extension to the thermal conductive surface plate, and the position relative at radiating subassembly heat conduction panel is concaved with a storage tank in addition, is used for mutual ccontaining cooperation.

Described radiating subassembly heat conduction panel is provided with a storage tank, and the overall volume of thermal conductive ceramic and area shape are suitable with this storage tank, and thermal conductive ceramic holds in this storage tank.

Compared with prior art, LED light fixture of the present utility model covers the radiator structure of shell-type outward, thermal conductive ceramic structure by the design full slice system, make the heat of LED lamp hot localised points can be by the guiding of thermo-electromotive force, diffuse to the whole end face in thermal conductive ceramic hot junction quickly and evenly, then, further by radiating subassembly with heat conduction panel and tab construction, to reach the spread heat in hot junction to each fin, air by flap surface is taken away heat, thereby has reached desirable radiating effect, makes the temperature of LED lamp hot localised points can remain at it below light decay temperature, not only guarantee the LED lamp efficiency, also prolonged the service life of lamp.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

Fig. 1 is a schematic appearance of the present utility model;

Fig. 2 is a perspective exploded view of the present utility model;

Fig. 3 is a cross-sectional plane schematic diagram of the present utility model;

Fig. 4 is the 2nd an embodiment floor map of the utility model thermal conductive ceramic and radiating subassembly fit structure;

Fig. 5 is the 3rd an embodiment floor map of the utility model thermal conductive ceramic and radiating subassembly fit structure.

Description of reference numerals is as follows among the figure:

10: lamp socket 11: the seat shell

12: power part 13: lead

14:LED lamp 20: lamp housing

30: thermal conductive ceramic 301: cold junction

302: hot junction 303: extension

40: radiating subassembly 41: the heat conduction panel

42: newel 420: fin

10: lamp socket 11: the seat shell

410: storage tank 50: gim peg

The specific embodiment

Understand for technology contents of the present utility model, characteristics and effect being had more specifically, existing in conjunction with illustrated embodiment, details are as follows:

Please cooperate shown in Fig. 1 to 3, light fixture of the present utility model mainly comprises lamp socket 10 and is enclosed within the lamp housing 20 of these lamp socket 10 opening parts, wherein, this lamp socket 10 mainly contains the seat shell 11 of a shelly, these shell 11 1 ends become the form and lamp housing 20 sockets of opening, the power part 12 that can electrically connect with the outside is brought and formed to the other end together, this power part 12 is connected to each LED lamp 14 to seat shell 11 inside to count lead 13, each LED lamp 14 electrically connects each other, each LED lamp 14 bottom is fixed on the thermal conductive ceramic 30 of whole piece formula simultaneously, these thermal conductive ceramic 30 other ends are connected with a radiating subassembly 40, and the other end of this radiating subassembly 40 is the bottom of fixing present shell 11 collecting ends then.

Wherein, thermal conductive ceramic 30 of the present utility model is provided with the mode large tracts of land of full wafer, this thermal conductive ceramic 30 forms a cold junction 301 with respect to the end face of LED lamp 14, end face with respect to radiating subassembly 40 then forms a hot junction 302, when LED lamp 14 conductions produce light and heat, the cold junction 301 of thermal conductive ceramic 30 is 302 generations, one thermal conducting kinetic potential to the hot junction, can be fast the heat of cold junction 301 be directed at hot junction 302, and because this thermal conductive ceramic 30 is the setting of large tracts of land full wafer form, when each LED lamp 14 local formation focus produces heat, these amount of localized heat can be by the structure of this large tracts of land full slice system, derived hot localised points, guiding by thermo-electromotive force, to hot junction 302 rapid diffusion, the heat with cold junction 301 each LED lamp 14 hot localised points quickly diffuses to the heat radiation form that hot junction 302 forms gross area by level and vertical direction rapidly, so equably, the surface temperature in full hot junction 302 must be brought down below the temperature of cold junction 301 each hot localised points, with the effect of effective raising integral heat sink.

Inventor's self testing one thickness be the thermal conductive ceramic 30 of 10mm; at electric current is 1.5A; voltage is 30.2V; time is under 15 hours the condition; the performance of mean temperature; temperature in cold junction 301 each LED lamp 14 place's hot localised points is 90 ℃; the temperature on 302 surfaces is 69 ℃ then to the hot junction, effectively temperature is fallen, and the state of falling for gross area; when the thickness increase is 1.5 times; when cold junction 301 local temperatures still were 90 ℃, hot junction 302 surface temperatures were lower, about about 57 ℃; and when thickness is reduced to 0.5 times; cold junction 301 local temperatures are constant, the surface temperature in hot junction 302 then about about 73 ℃, so can effectively keep cold junction 301 in the hot localised points temperature at LED lamp 14 places below the light decay temperature; thereby reach the purpose of protection LED lamp 14, and effectively prolong its service life.

Radiating subassembly 40 has the identical heat conduction panel 41 of an area and thermal conductive ceramic 30 as shown in Figure 3, thermal conductive ceramic 30 hot junctions 302 comprehensive heats can be reached on the heat conduction panel 41; The center of heat conduction panel 41 other ends is provided with a newel 42, and the center of this newel 42 is passed for a gim peg 50, present shell 11 bottoms of locking; Radiating subassembly 40 is that the center outwards forms the fin 420 that is extended sheets by heat conduction panel 41 in the radial mode of the sun with newel 42, fin 420 1 ends are connected with newel 42, the other end is connected with heat conduction panel 41 opposing end faces, the heat that heat conduction panel 41 is directed at can import each fin 420 fast and effectively, and is shed by the surface of each fin 420.

For another shown in Figure 4, the matching relationship of thermal conductive ceramic 30 and radiating subassembly 40, also can protrude out a large-area extension 303 to thermal conductive surface plate 41 in the hot junction 302 of thermal conductive ceramic 30, and be concaved with a storage tank 410 in addition in radiating subassembly 40 heat conduction panels 41 relative positions, with mutual ccontaining cooperation, and the cell wall of this storage tank 410 is contacted with extension 303 definitely, to form more large-area contact heat radiation.In addition can be as shown in Figure 5, wherein, still be provided with storage tank 410 on the radiating subassembly 40 heat conduction panels 41, the overall volume of thermal conductive ceramic 30 and area shape are then suitable with storage tank 410, promptly hold to go in this storage tank 410, still can reach the purpose of quick heat radiating, it mainly is the area that hot junction 302 and the contact area of the heat conduction panel 41 of radiating subassembly 40 by thermal conductive ceramic 30 is greater than thermal conductive ceramic 30 cold junctions 301, effectively improves heat transfer efficiency.

Claims

1. a LED light fixture covers the radiator structure of shell-type outward, it is characterized in that, comprising:

One lamp housing is enclosed within lamp socket seat shell opener place;

2. LED light fixture as claimed in claim 1 covers the radiator structure of shell-type outward, it is characterized in that: described radiating subassembly has the area heat conduction panel identical with thermal conductive ceramic, the thermal conductive ceramic hot junction contacts the heat conduction comprehensively with the heat conduction panel, the center of this heat conduction panel other end is provided with a newel, the center of this newel is passed for a gim peg, be locked in a shell bottom, this radiating subassembly is the center with the newel, outwards form the sheet fin that extends by the heat conduction panel in the radial mode of the sun, this fin one end is connected with newel, and the other end is connected with heat conduction panel opposing end surface.

3. LED light fixture as claimed in claim 1 covers the radiator structure of shell-type outward, it is characterized in that: the hot junction of described thermal conductive ceramic protrudes out a large-area extension to the thermal conductive surface plate, is concaved with a storage tank that is used for mutual ccontaining cooperation in addition in the relative position of radiating subassembly heat conduction panel.

4. LED light fixture as claimed in claim 1 covers the radiator structure of shell-type outward, it is characterized in that: described radiating subassembly heat conduction panel is provided with a storage tank, and the overall volume of thermal conductive ceramic and area shape are suitable with this storage tank, and thermal conductive ceramic holds in this storage tank.