CN202873254U

CN202873254U - Novel heat pipe type radiating device

Info

Publication number: CN202873254U
Application number: CN 201220526742
Authority: CN
Inventors: 王国辉; 王振华
Original assignee: WEIFANG HI-TECH ZONE ELECTRICAL TECHNOLOGY PROMOTION CENTER
Current assignee: WEIFANG HI-TECH ZONE ELECTRICAL TECHNOLOGY PROMOTION CENTER
Priority date: 2012-10-16
Filing date: 2012-10-16
Publication date: 2013-04-10
Anticipated expiration: 2022-10-16

Abstract

A novel heat pipe type radiating device comprises a heat pipe, a liquid absorption net core, a working medium, and cooling fins. The liquid absorption net core is laid on the inner wall of the heat pipe, the metal cooling fins are adhered to the outer wall of the heat pipe, an electronic component is closely adhered to the outer wall of the heat pipe, and heat generated by the electronic component is transmitted to the working medium inside the heat pipe through the outer wall of the heat pipe; the working medium in a high vacuum state is heated, the phase of the working medium is changed into isothermal saturated steam in an evaporation section, convection heat transfer is generated between the steam and the inner wall of a condensation section of the heat pipe, heat is then transmitted to the cooling fins through a heat conduction effect, heat is brought to the air from the cooling fins by virtue of a convection process of the cooling fins and surrounding cooling air flow, the phase of the steam that releases heat is then changed into liquid, and the steam returns to the evaporation section and is heated and gasified under the acting force of the liquid absorption net core laid on the inner wall of the heat pipe, thereby forming a working medium phase change heat transfer cycle. The utility model aims to provides a novel heat pipe type radiating device which is high in radiating efficiency and safe and convenient to use.

Description

A kind of heat-pipe type heat abstractor

Technical field

The utility model relates to a kind of heat abstractor, is specifically related to a kind of heat-pipe type heat abstractor.

Background technology

The application of electronic component is more and more general, and electronic component all can produce heat in real work, and the overheated problem of electronic component is more and more outstanding; Conventional solution is to increase the radiator heat-dissipation area and adopt fan to strengthen convective heat transfer at present; Yet because the area of dissipation of electronic component is much smaller than the radiator that attaches on it, this just causes the heat of electronic component effectively to conduct, the scaling loss that causes electronic component because internal temperature is too high.

The utility model content

The purpose of this utility model just provides a kind of radiating efficiency a kind of heat-pipe type heat abstractor high, safe and convenient to use.

A kind of heat-pipe type heat abstractor comprises heat pipe, the imbibition web-roll core, working medium, fin, be laid with the imbibition web-roll core on adherent in the described heat pipe, be pasted with metal fin on the heat pipe outer wall, electronic component is close to the outer wall of heat pipe, the heat that electronic component produces sees through heat pipe outer wall and is transferred to the interior working medium of heat pipe, working medium can be pure water or other liquids, to being in the working medium heating of high vacuum state, make working medium become mutually the saturated steam of isothermal at evaporation section, steam arrives at condensation segment after crossing the adiabatic section, owing to almost there not being thermal losses on the way, the temperature that steam arrives behind the condensation segment remains unchanged, and with heat pipe condenser section inwall generation convective heat transfer, by conduction of heat again with heat delivery to heat pipe outer wall be attached on the metal fin on the heat pipe outer wall, by fin and the convection process of cooling blast on every side heat is brought into the air from fin, the steam of releases heat becomes again liquid mutually, and in heat pipe, turn back to again heating and gasifying of evaporation section under the active force of the adherent imbibition web-roll core that lays, consist of the Working fluid phase changing heat transfer cycle.

Heat-pipe radiating apparatus can be arranged in fin on the position away from electronic component, and lengthen condensation segment owing to can increase the fin count of radiator again, so that the fin that is attached on the heat pipe outer wall can equalization be shared hot-fluid, both can guarantee enough area of dissipations, very high radiating efficiency was arranged again.

Description of drawings

Accompanying drawing 1: a kind of heat-pipe type construction for heat radiating device schematic diagram.

Embodiment

A kind of heat-pipe type heat abstractor comprises heat pipe (1), imbibition web-roll core (2), working medium (3), fin (4), be laid with imbibition web-roll core (2) on adherent in the described heat pipe (1), be pasted with metal fin (4) on heat pipe (1) outer wall, electronic component (5) is close to the outer wall of heat pipe (1), the heat that electronic component (5) produces sees through heat pipe (1) outer wall and is transferred to the interior working medium (3) of heat pipe (1), working medium (3) can be pure water or other liquids, to working medium (3) heating that is in the high vacuum state, make working medium (3) become mutually the saturated steam of isothermal at evaporation section (7), steam arrives at condensation segment (9) after crossing adiabatic section (8), owing to almost there not being thermal losses on the way, the temperature that steam arrives behind the condensation segment (9) remains unchanged, and with heat pipe (1) condensation segment (9) inwall generation convective heat transfer, by conduction of heat again with heat delivery to heat pipe (1) outer wall be attached on the metal fin (4) on heat pipe (1) outer wall, by fin (4) and the convection process of cooling blast on every side heat is brought into the air from fin (4), the steam of releases heat becomes again liquid mutually, and in heat pipe (1), turn back to again heating and gasifying of evaporation section (7) under the active force of the adherent imbibition web-roll core (2) that lays, consist of the circulation of working medium (3) phase-change heat transfer.

Heat pipe (1) heat abstractor can be arranged in fin (4) on the position away from electronic component (5), and lengthen condensation segment (9) owing to can increase fin (4) number of radiator again, so that the fin (4) that is attached on heat pipe (1) outer wall can equalization be shared hot-fluid, both can guarantee enough area of dissipations, very high radiating efficiency was arranged again.

Claims

1. a heat-pipe type heat abstractor comprises heat pipe (1), imbibition web-roll core (2), working medium (3), fin (4), it is characterized in that: be laid with imbibition web-roll core (2) on adherent in the described heat pipe (1), be pasted with metal fin (4) on heat pipe (1) outer wall, electronic component (5) is close to the outer wall of heat pipe (1), and the heat that electronic component (5) produces sees through heat pipe (1) outer wall and is transferred to the interior working medium (3) of heat pipe (1).

2. a kind of heat-pipe type heat abstractor according to claim 1, it is characterized in that: to working medium (3) heating that is in the high vacuum state, make working medium (3) become mutually the saturated steam of isothermal at evaporation section (7), steam arrives at condensation segment (9) after crossing adiabatic section (8), and with heat pipe (1) condensation segment (9) inwall generation convective heat transfer, by conduction of heat again with heat delivery to heat pipe (1) outer wall be attached on the metal fin (4) on heat pipe (1) outer wall, by fin (4) and the convection process of cooling blast on every side heat is brought into the air from fin (4), the steam of releases heat becomes again liquid mutually, and turns back to again heating and gasifying of evaporation section (7) under the active force of the adherent imbibition web-roll core (2) that lays in heat pipe (1).