CN201600066U

CN201600066U - Combined heat pipe radiator

Info

Publication number: CN201600066U
Application number: CN200920074612XU
Authority: CN
Inventors: 黄金鹿; 黄莺; 缪应明; 吴海生
Original assignee: Suzhou Zhongze Optoelectronics Technology Co Ltd
Current assignee: Suzhou Zhongze Optoelectronics Technology Co Ltd
Priority date: 2009-10-15
Filing date: 2009-10-15
Publication date: 2010-10-06
Anticipated expiration: 2019-10-15

Abstract

The utility model discloses a combined heat pipe radiator, which consists of an upper aluminum-base radiator, a lower heat conduction fixed plate and a heat pipe. The upper aluminum-base radiator is fixedly connected with the lower heat conduction fixed plate, upper and lower heat pipe mounting grooves correspondingly form a closed heat pipe fixed mounting hole, the size of the mounting hole corresponds to the size and the appearance of the heat pipe, and the mounting hole tightly matches with the heat pipe. The heat pipe is a sintered heat pipe and consists of a pipe casing, a pipe core and a movable medium, and metal powders with certain meshes are sintered on the inner wall surface of the pipe to form the sintered powder pipe core integrated with the wall of the pipe. The combined heat pipe radiator is applied to integrating high-power LED lamps, can rapidly conduct relatively concentrated heat energy approaching an integrated LED module so as to spread the heat energy to the radiator, effectively balances temperature, and sufficiently utilizes limited radiating area.

Description

A kind of combined hot tube radiator

Technical field

The utility model relates to a kind of radiator, definite a kind of LED light fixture combined hot tube radiator of saying so.

Background technology

Many particles of tradition LED light fixture exists the light source light decay fast, easily aging shortcoming, and a large amount of combined light sources make the fitting structure complexity, installation manufacturing cost height, utilize integrated encapsulation technology that the plurality of LEDs light source is integrated in formation light source module on the fritter area for addressing the above problem the scientific worker, well solved complicated and the fast shortcoming of light decay have been installed, but the heat that the light source of this module type produces is concentrated relatively, make that aluminium base radiator heat transfer plate heat distributed pole is inhomogeneous, be unfavorable for heat radiation, the led chip junction temperature is exceeded standard, then accelerate the led chip light decay and influence service life, the LED light efficiency is also relevant with temperature simultaneously, and therefore effectively control led chip temperature will seem very important.

Summary of the invention

Concentrate for solving high power integrated LED light source light fixture heat, the problem of heat radiation difficulty, the utility model provides a kind of LED light fixture combined hot tube radiator.

The technical solution of the utility model is as follows:

A kind of combined hot tube radiator, combine by last aluminium base radiator, following heat conduction fixed head and heat pipe, going up aluminium base radiator fixedlys connected with following heat conduction fixed head, the corresponding heat pipe that forms closure of heat pipe mounting groove fixedly mounts the hole up and down, installing hole and heat pipe sizes profile correspondence, formation closely cooperate (the heat pipe close installation is in installing hole, and heat pipe is a plus tolerance, and both are closely contacted).

Described aluminium base radiator adopts aluminium to stretch and forms, by some aluminium base fin, the heat transfer aluminium base, heat pipe mounting groove and bolt hole are formed, some fin are fixedly installed on heat transfer aluminium base upper surface, heat pipe mounting groove at regular intervals is established in heat transfer aluminium base lower surface, the size of mounting groove and shape are decided according to the heat pipe gauge size, the aluminium base that conducts heat simultaneously need be provided with the bolt hole (bolt hole secondary operations) that is connected with following heat conduction fixed head, heat transfer aluminium base thickness is set between 0.5-2 centimetre, the thickness of fin is the 0.5-4 millimeter, highly be 2-20 centimetre, spacing is 0.5-2 centimetre.

Described down heat conduction fixed head is stretched by aluminium and forms, and is provided with it on and last aluminium base radiator heat pipe mounting groove and bolt hole (bolt hole secondary operations) one to one.

Described heat pipe is made up of shell, tube core and ACTIVE media, certain order number metal powder sintered forms the sintered powder tube core with the tube wall one at the inside pipe wall face, shell is generally copper pipe, aluminum pipe, stainless steel tube etc., and profile can be designed to circle, square or pancake as required.

Described radiator can be used for the heat radiation of high-power LED street lamp, Tunnel Lamp, floodlight etc.

Good effect of the present utility model

Form sintered powder tube core with the tube wall one at the inside pipe wall face by certain order number metal powder sintered, tube core has higher capillary suction force, and improved radially thermal resistance significantly, and having overcome the shortcoming of web-roll core process repeatability difference, the sintered type micro heat pipe can be taken into account high hot biography amount and low thermal resistance.Because the sintered type micro heat pipe has the advantage of hot biography amount of above-mentioned height and low thermal resistance, the utility model is applied to high-power LED lamp, the heat that makes led chip send is Rapid and uniform to be delivered to fin and to be lost in the air, has fundamentally solved the optical attenuation that the high-power LED light source lamp tool does not freely cause because of heat radiation, has influenced problem such as chip service life.The heat of entire radiator that the heat pipe heat radiation The Application of Technology is greatly even distributes, and has made full use of the heat sinking function of fin, can reduce volume than the traditional heat-dissipating device, improve radiating efficiency, and the utility model heat abstractor long service life, need not maintenance substantially, not power consumption, environmental protection.

Description of drawings:

Fig. 1: be the utility model schematic appearance;

Fig. 2: be the utility model structural representation;

Fig. 3: be the utility model assembling schematic diagram.

Indication legend in the accompanying drawing

1, goes up aluminium base radiator 11, aluminium base fin

12, heat transfer aluminium base 13, heat pipe mounting groove

14, bolt hole 2, following heat conduction fixed head

21, aluminium base 22, heat pipe mounting groove

23, bolt hole 3, heat pipe

The specific embodiment

As shown in Figure 1, 2, a kind of combined hot tube radiator, combine by last aluminium base radiator (1), following heat conduction fixed head (2) and heat pipe (3), going up aluminium base radiator fixedlys connected with following heat conduction fixed head, the corresponding heat pipe that forms closure of heat pipe mounting groove fixedly mounts the hole up and down, installing hole and heat pipe sizes profile correspondence, and formation closely cooperates, and (the heat pipe close installation is in installing hole, heat pipe is a plus tolerance, and both are closely contacted).

As shown in Figure 3, going up aluminium base radiator (1) adopts the aluminium stretching to form, by some aluminium base fin (11), heat transfer aluminium base (12), heat pipe mounting groove (13) and bolt hole (14) are formed, some fin are fixedly installed on heat transfer aluminium base upper surface, heat pipe mounting groove at regular intervals is established in heat transfer aluminium base lower surface, the size of mounting groove and shape are decided according to the heat pipe gauge size, the aluminium base that conducts heat simultaneously need be provided with the bolt hole (bolt hole secondary operations) that is connected with following heat conduction fixed head, heat transfer aluminium base thickness is set between 0.5-2 centimetre, the thickness of fin is the 0.5-4 millimeter, highly be 2-20 centimetre, spacing is 0.5-2 centimetre.

Following heat conduction fixed head (2) is stretched by aluminium and forms, and the bolt hole secondary operations is set it on and last aluminium base radiator heat pipe mounting groove (22) and bolt hole (23) one to one.

Heat pipe is made up of shell, tube core and ACTIVE media, certain order number metal powder sintered forms the sintered powder tube core with the tube wall one at the inside pipe wall face, shell is generally copper pipe, aluminum pipe, stainless steel tube etc., and profile can be designed to circle, square or pancake as required.

Operation principle of the present utility model

Why can heat pipe have so good capacity of heat transmission from thermodynamic (al) angle? the heat absorption of object, heat release are relative, and be every when having temperature difference to exist, and heat just must occur from the phenomenon of high temperature to the transmission of low temperature place.Three kinds of modes from the heat transmission: radiation, convection current, conduction, wherein the heat conduction is the fastest.Heat pipe utilizes sweat cooling exactly, makes that heat pipe two ends temperature difference is very big, and heat is conducted fast.General heat pipe is made up of shell, imbibition core and end cap.Inside heat pipe is to be pumped into negative pressure state, charges into suitable liquid, and this boiling point of liquid is low, easily volatilization.Tube wall has the imbibition core, and it is made of the capillary porous material.Heat pipe is an evaporation ends for one section, other one section is condensation end, when one section of heat pipe is heated, liquid in the capillary evaporates rapidly, and steam flows to an other end under small pressure differential, and discharges heat, regelation becomes liquid, liquid flows back to evaporator section along porous material by the effect of capillary force again, and so circulation is more than, and heat reaches an other end by heat pipe one end.This circulation is carried out fast, and heat can be come by conduction continuously.

The utility model heat-pipe radiator directly is embedded in heat pipe in the heat transfer aluminium base for the compact aesthetic property of easy for installation and light fixture, because radiator adopts sintered heat pipe, is not subjected to the restriction of setting angle and direction during installation.

The heat that the high-power LED light source chip produces is concentrated relatively, distributed pole is inhomogeneous in aluminium base radiator, can not make full use of the efficiently radiates heat area of radiator, this utility model adds heat pipe in the heat transfer aluminium base, it has made full use of the Rapid Thermal hereditary property of heat-conduction principle and refrigeration filling, be delivered to rapidly outside the thermal source through the heat of heat pipe with thermal objects, its capacity of heat transmission surpasses the capacity of heat transmission of any known metal.The operating temperature of guaranteeing luminescence chip has guaranteed the luminous efficiency and the service life of chip below the temperature of setting, cause a series of problems such as optical attenuation thereby fundamentally solved the great power LED luminescence chip because of temperature rise, weak heat-dissipating.

Claims

1. combined hot tube radiator, it is characterized in that: radiator is made up of last aluminium base radiator, following heat conduction fixed head and heat pipe, going up aluminium base radiator fixedlys connected with following heat conduction fixed head, the corresponding heat pipe that forms closure of heat pipe mounting groove fixedly mounts the hole up and down, installing hole and heat pipe sizes profile correspondence, formation closely cooperates.

2. a kind of combined hot tube radiator according to claim 1, it is characterized in that: described aluminium base radiator adopts aluminium to stretch and forms, by some aluminium base fin, the heat transfer aluminium base, heat pipe mounting groove and bolt hole are formed, some fin are fixedly installed on heat transfer aluminium base upper surface, heat pipe mounting groove at regular intervals is established in heat transfer aluminium base lower surface, the size of mounting groove and shape and heat pipe coupling, the aluminium base that conducts heat simultaneously need be provided with the bolt hole that is connected with following heat conduction fixed head, the bolt hole secondary operations, heat transfer aluminium base thickness is set between 0.5-2 centimetre, the thickness of fin is the 0.5-4 millimeter, highly be 2-20 centimetre, spacing is 0.5-2 centimetre.

3. a kind of combined hot tube radiator according to claim 1 is characterized in that: described down heat conduction fixed head is stretched by aluminium and forms, and is provided with it on and last aluminium base radiator heat pipe mounting groove and bolt hole one to one, and bolt hole need secondary operations.

4. a kind of combined hot tube radiator according to claim 1, it is characterized in that: described heat pipe is made up of shell, tube core and ACTIVE media, the metal powder sintered sintered powder tube core that forms at the inside pipe wall face with the tube wall one, shell is generally copper pipe, aluminum pipe or stainless steel tube, and profile can be designed to circle, square or pancake as required.