A kind of electronic devices and components liquid cooling heat radiation system
Technical field
The utility model relates to the heat dissipation technology field of electronic devices and components, is specifically related to a kind of electronic devices and components liquid cooling heat radiation system.
Background technology
Along with the development of electronic product packaging technology, the application of power component is more and more, add the development of semiconductor fabrication, more transistor is incorporated in one chip, various large electric currents, high-speed, high power density electronic devices and components are as resistor, transistor, high-power integrated circuit etc., all obtain application widely in the various aspects of control field, cause electronic component overall power consumption and caloric value to increase, cause electronic component temperature constantly to rise, if dispel the heat and will cause inefficacy or the damage of electronic component not in time.
At present under technical conditions, conventional IGBT radiating mode mainly contains three kinds: Fin, heat pipe heat radiation and liquid-cooling heat radiation, wherein Fin and heat pipe heat radiation mainly adopt the mode of forced air cooling, and liquid-cooling heat radiation mainly adopts liquid (mixture of water and the ethylene glycol) circulatory system cooling.Finned radiator compact conformation, volume is moderate, heat conduction is stable, but needs subsidiary auxiliary air channel, fan performance is had relatively high expectations, and blower fan easily produces serious noise pollution in the time of operation; Heat-pipe radiator volume is large, structure is heavy, installation and removal are difficult, but heat-sinking capability will be got well compared with finned radiator.By contrast, the heat-sinking capability of liquid cooling heat radiator is for the strongest.
Chinese Patent Application No. CN200920297561.7 has proposed a kind of " automobile motor controller water cooler ", its cooler by cooler base plate, with groove and cooler water inlet pipe and water outlet pipe form, wherein cooler base plate and cooler welding, cooler and the welding of controller body bottom surface, cooler water inlet pipe and water outlet pipe is connected with cooler.This technical scheme, mainly by cooling water flow subcooler base plate, is taken away power model and is produced heat.Because cooling water is to be flowed into by one end of base plate, flowed out by the other end, along with cooling water flows through base plate, temperature rises gradually, easily cause the power device heat radiation of coolant outlet end insufficient, power device non-uniform temperature, cooling water inlet end is low and the port of export is high, causes the unbalanced of electronic power components performance.
Utility model content
The purpose of this utility model is to overcome the lack of uniformity of the cooling degree of existing electronic devices and components, and a kind of electronic devices and components liquid cooling heat radiation system is provided, and in realizing electronic devices and components efficiently radiates heat, ensures the consistency of electronic devices and components temperature.
The utility model is that technical solution problem adopts following technical scheme:
The utility model electronic devices and components liquid cooling heat radiation system, be characterized in: liquid cooling heat radiator is set, described liquid cooling heat radiator be by tabula therein the liquid plate of penetrating in chamber be separated into admission chamber and go out sap cavity, described go out the base plate of sap cavity be heat-conducting substrate, the cooling base of described heat-conducting substrate and electronic devices and components fits; Inner surface at described heat-conducting substrate arranges cone, liquid shoot hole is set penetrating on liquid plate, and described cone is corresponding one by one with the position of the thermal source on liquid shoot hole and cooling base, described cone with; In described liquid cooling heat radiator, filled liquid cooled working medium is connected with condenser with micropump by pipeline and forms liquid cooled duplex matter system; In one end of described liquid cooling heat radiator, the side that is positioned at described admission chamber arranges cooling working medium entrance, a side that goes out sap cavity described in being positioned at arranges cooling working medium outlet, the flow direction of described liquid cooled working medium is enter admission chamber, liquid shoot hole directive cone in penetrating liquid plate and enter fluid chamber from cooling working medium entrance, until go out liquid cooling heat radiator at cooling working medium outlet guide.
The design feature of the utility model electronic devices and components liquid cooling heat radiation system is also:
The diameter of described liquid shoot hole is the bottom surface diameter of cone
Described liquid cooled working medium is water, liquid alcohol or liquid metal.
On the contact-making surface that described heat-conducting substrate and cooling base fit, be coated with heat-conducting cream.
Compared with prior art, the utility model beneficial effect is embodied in:
In the utility model, liquid cooled working medium penetrates by liquid shoot hole from admission chamber, impact each cone on heat-conducting substrate, can carry out effectively jet heat radiation rapidly to each thermal source of the corresponding electronic device of cone base plate simultaneously, and, because the cooling working medium temperature of each cone of flowing through is identical with flow, it is equal that this just makes each cone obtain degree of heat radiation, ensured the consistency of electronic devices and components temperature.
Brief description of the drawings
Fig. 1 is the utility model electronic devices and components liquid cooling heat radiation system schematic diagram.
Number in the figure: 1 admission chamber, 2 penetrate liquid plate, and 3 go out sap cavity, 4 heat-conducting substrates, 5 cooling bases, 6 electronic devices and components, 7 thermals source, 8 liquid cooling heat radiators, 9 cones, 10 liquid shoot holes, 11 cooling working medium entrances, 12 condensers, 13 blower fans, 14 micropumps, 15 cooling working medium outlets.
Embodiment
Referring to Fig. 1, in the present embodiment, the version of electronic devices and components liquid cooling heat radiation system is:
Liquid cooling heat radiator 8 is set, liquid cooling heat radiator 8 be by tabula therein the liquid plate 2 of penetrating in chamber be separated into admission chamber 1 and go out sap cavity 3, the base plate that goes out sap cavity 3 is heat-conducting substrate 4, heat-conducting substrate 4 fits with the cooling base 5 of electronic devices and components 6; At the inner surface of heat-conducting substrate 4, cone 9 is set, liquid shoot hole 10 is set penetrating on liquid plate 2, cone 9 is corresponding one by one with the position of the thermal source 7 on liquid shoot hole 10 and cooling base 5, cone 9 with; In liquid cooling heat radiator 8, filled liquid cooled working medium is connected with condenser 12 with micropump 14 by pipeline and forms liquid cooled duplex matter system, and heat cooling working medium being carried at the blower fan 13 of condenser 12 arranged outside is taken away.
; In one end of liquid cooling heat radiator 8, the side that is positioned at admission chamber 1 arranges cooling working medium entrance 11, a side that is positioned at sap cavity 3 arranges cooling working medium outlet 15, the flow direction of liquid cooled working medium is enter admission chamber 1, liquid shoot hole 10 directive cones 9 in penetrating liquid plate 2 and enter fluid chamber 3 from cooling working medium entrance 11, until derive liquid cooling heat radiators 8 in cooling working medium outlet 15.
In concrete enforcement, corresponding structure setting also comprises:
Diameter that liquid shoot hole 10 is set is the bottom surface diameter of cone 9
in the present embodiment, be taken as
liquid cooled working medium is water, liquid alcohol or liquid metal; On the contact-making surface that heat-conducting substrate 4 and cooling base 5 fit, be coated with heat-conducting cream, to increase heat conductivility.
In the present embodiment, because heat-conducting substrate 4 and cooling base 5 is generally all that copper or the aluminum high with heat conductivility made, this reaches rapidly on the cone 9 that it is corresponding the heat that in electronic devices and components 6, each thermal source 7 produces, the cooling working medium penetrating by liquid shoot hole 10 is again the taper seat shooting heat radiation to cone 9 rapidly, can each thermal source of powerful electronic devices and components 67 be carried out to the rapid heat radiation of equal extent simultaneously, ensure the temperature consistency of electronic devices and components 6.