CN2694211Y

CN2694211Y - Hot pipe

Info

Publication number: CN2694211Y
Application number: CN 200420044132
Authority: CN
Inventors: 颜士杰
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2004-03-25
Filing date: 2004-03-25
Publication date: 2005-04-20
Anticipated expiration: 2014-03-25

Abstract

The utility model discloses a hot pipe, comprising an outer pipe filled with working liquid; the outer tube contains an evaporation end and a condensation end. Wherein the outer tube is provided with an inner tube holding the working liquid; the inner tube contains an evaporation end and a condensation end, and the evaporation end of the inner tube is positioned in the evaporation of the outer tube; the upper part of the condensation end of the inner tube is provided with an opening which causes the working liquid in the outer tube and the inner tube to flow in the interactive method, which is in favor of the sufficient condensation and the back flow of the working liquid.

Description

Heat pipe

[technical field]

The utility model relates to a kind of heat pipe, refers in particular to a kind of heat pipe with great heat radiation effect that is applied to electronic element radiating.

[background technology]

Along with the lifting of electronic installation internal electronic element arithmetic speed and the increase of consumed power, the heat of corresponding generation also increases severely thereupon, for electronic component can be operated under normal working temperature, need to set up a radiator usually and in time discharge the heat that electronic component produces at electronical elements surface.

Traditional radiating mode is the radiator that a metal material is set above heat-generating electronic elements; this radiator has pedestal; the pedestal lower surface contacts with electronic component; its upper surface then is provided with some fins; pedestal absorbs the heat that electronic component produces, and by fin heat is distributed in the surrounding air, for strengthening the rate of heat exchange of fin and surrounding air; usually also above fin, add and put a fan, to strengthen gaseous exchange.Though above-mentioned heat abstractor can be used for distributing the heat that electronic component produces,, rely on the radiator of metal material to conduct heat merely, the coefficient of heat conduction of metal is limited, causes the amount of thermal conduction of radiator under unit interval, unit volume also limited.Traditional simple metal radiator heat-dissipation mode can not satisfy the radiating requirements of golf calorific value electronic component.

For this reason, temperature remained unchanged when industry technology personage utilized liquid to change between the vapour-liquid binary states, absorbed simultaneously or the operation principle of emitting big calorimetric has been invented heat pipe.Heat pipe commonly used generally comprises a shell, capillary structure and hydraulic fluid, and this hydraulic fluid is heated, cools off, and changes between the gas-liquid binary states and absorbs or emit a large amount of heat, thereby make heat reach the other end rapidly by body one end.Though this heat pipe has thermal conductivity and isothermal preferably, but less and heat pipe of hydraulic fluid and heater element contact area are less in the heat pipe, only there is a little amount of work liquid that contacts with body in the evaporator section capillary structure to absorb heat, the maximal heat transfer amount of heat pipe is restricted, can not have satisfied the electronic element radiating requirement that caloric value improves constantly.

Therefore, how increasing the working solution scale of construction that absorbs heat in the heat pipe is to promote the problem that the heat pipe heat radiation performance must solve.

[summary of the invention]

The purpose of this utility model is to provide a kind of heat pipe with more hydraulic fluid.

The purpose of this utility model realizes in the following way: the utility model heat pipe comprises that one is equipped with the outer tube of hydraulic fluid, and this outer tube comprises an evaporation ends and a condensation end.Be provided with an interior pipe that hydraulic fluid is housed in its middle external tube, pipe comprises an evaporation ends and a condensation end in this, and the evaporation ends of interior pipe is positioned at the evaporation ends of outer tube, and pipework condensation end top is provided with an opening in this.

Compare with known heat pipe, the utility model heat pipe comprises pipe in an outer tube and, so the utility model heat pipe can be equipped with more work liquid; And when the utility model heat pipe was worked, the evaporation ends of outer tube and interior pipe can absorb heat simultaneously, thereby the utility model heat pipe has more work liquid absorption heat of vaporization so can transmit more heat; Simultaneously, the backflow of hydraulic fluid has two paths, and return flow path is designed to slightly be the rapid backflow of tilting to help hydraulic fluid, thereby improves the service behaviour of heat pipe.

In conjunction with the embodiments the utility model heat pipe is further described with reference to the accompanying drawings.

[description of drawings]

Fig. 1 is the utility model heat pipe first embodiment generalized section vertically.

Fig. 2 is along the generalized section of II-II line among Fig. 1.

Fig. 3 is the utility model heat pipe second embodiment generalized section vertically.

Fig. 4 is along the generalized section of V-V line among Fig. 3.

Fig. 5 is the utility model heat pipe course of work schematic diagram.

Fig. 6 is the structural representation of another embodiment of outer tube of the utility model heat pipe.

[specific embodiment]

Please refer to first embodiment of Fig. 1 to the utility model heat pipe 100 shown in Figure 2, this heat pipe 100 comprises that an outer tube 110 and is positioned at the pipe 120 of outer tube 110, its middle external tube 110 comprises an evaporation ends 117 and a condensation end 118, interior pipe 120 also comprises an evaporation ends 127 and a condensation end 128, and the evaporation ends 127 of interior pipe 120 is positioned at evaporation ends 117 1 sides of outer tube 110.Hydraulic fluid 116 and its bottom interior surface are housed in the outer tube 110 tilt, its included angle A with horizontal plane is about 1 to be spent, and is beneficial to hydraulic fluid 116 and is back to evaporation ends 117 from condensation end 118; In pipe 120 comprise housing 122, capillary structure 124, hydraulic fluid 116 and be positioned at the support 125 of pipe 120 outsides, interior pipe 120 by support 125 with outer tube 110 interference fit and being fixed in the outer tube 110, and

interior pipe

120 and 110 formation of outer tube gap.Interior pipe 120 housings 122 outer surface of upper tilt, the included angle B of itself and horizontal plane is about 1 degree, and on its condensation end 128, be provided with an oblong openings 129, in this oblong openings 129 relies on pipe 120 evaporation ends 127 1 ends be provided with comprise one bend towards in pipe 120 inner and be the kinks of 45 degree approximately with vertical direction, pipe 120 in the hydraulic fluid 116 that helps cooling off enters through opening 129, hydraulic fluid 116 in making in pipe 120 and the outer tube 110 passes through these opening 129 mutual periodic duties, thereby helps the abundant condensation and the backflow of hydraulic fluid 116.

Fig. 3 and Figure 4 shows that the utility model heat pipe 100A second embodiment, present embodiment is close with first example structure, the fixed structure of 110 of pipe 120 and outer tubes in difference is.Pipe 120 is by supporting 125A and outer tube 110 interference fit and being fixed in the outer tube 110 in the present embodiment.This support 125A slabbing and outer tube 110 is divided into two chambers up and down that only communicate with condensation end 118 at evaporation ends 117 with the space of 120 of interior pipes, steam state hydraulic fluid 116 and liquid hydraulic fluid 116 are separated flow, thereby avoid 116 of vapour-liquid binary states hydraulic fluids to interfere mutually and influence its flowability.

Figure 5 shows that the course of work of the utility model heat pipe 100: the evaporation ends 117 of the outer tube 110 of heat pipe 100 contacts (not shown) and absorbs the heat that the element that is cooled produces with the element that is cooled, and makes the hydraulic fluid 116 in the evaporation ends 117 be subjected to thermal evaporation to form the condensation end 118 that vapor stream 150 flows to outer tube 110.Vapor stream 150 at first contacts with the evaporation ends 127 of interior pipe 120 hydraulic fluid 116 in 120 evaporation ends 127 of pipe in a part of heat transferred, in interior pipe 120, form another strand vapor stream 160, thereby in heat pipe 100, form two strands of vapor streams 150,160 simultaneously.The vapor stream 160 inwardly condensation end 128 of pipe 120 flows, part vapor stream 160 is back to evaporation ends 127 after condensation end 128 is cooled to liquid state, another part is uncolled to become liquid vapor stream 160 to enter the gap of 120 of outer tube 110 and interior pipes along opening 129, flows to outer tube 110 condensation ends 118 with vapor stream 150.When vapor stream 150,160 flowed to condensation end 118 outside interior pipe 120, a part was cooled to liquid along the interior pipe 120 of opening 129 inflows, evaporates the hydraulic fluid 116 that enters outer tube 110 to manage 120 in replenishing; The vapor stream 150,160 of one-tenth steam state that another part is uncolled flows to condensation end 118.The hydraulic fluid 116 of steam state slightly is the evaporation ends 117 that inclined bottom is back to outer tube 110 along outer tube 110 after condensation end 118 is cooled to liquid state.

Above-mentioned is two specific embodiments and the course of work thereof of the utility model heat pipe 100, but the structure of the utility model heat pipe 100 is not limited in this, the bottom of outer tube 110 can be made as required with horizontal plane slightly to be the inclined plane of 1 degree angle to help the backflow of hydraulic fluid 116; And contact with the element that is cooled for ease of heat pipe 100, the inclined plane can be located at outer tube 110 inside, be illustrated in figure 6 as another structural representation of outer tube 110A; And first among the embodiment in the quantity and the position on interior pipe 120 thereof of support 125 of pipe 120 all can do corresponding change according to actual needs.

As previously mentioned, the utility model heat pipe 100 comprises pipe 120 in an interior outer tube 110 and, and hydraulic fluid 116 all is housed in the two, can adorn more work liquid 116 so compare the utility model heat pipe 100 with known heat pipe; When heat pipe 100 work, can heat pipe 100 in, form two strands of vapor streams 150,160, thereby the utility model heat pipe 100 is compared with known heat pipe and is had more work liquid 116 absorption heat of vaporization and die and can transmit more heat; Simultaneously, the backflow of hydraulic fluid 116 has two paths, and return flow path is designed to slightly be inclination, helps the rapid backflow of hydraulic fluid 116, thereby improves the service behaviour of heat pipe 100;

Claims

1. heat pipe, comprise that one is equipped with the outer tube of hydraulic fluid, this outer tube comprises an evaporation ends and a condensation end, it is characterized in that: be provided with an interior pipe that hydraulic fluid is housed in this outer tube, interior pipe comprises an evaporation ends and a condensation end, and the evaporation ends of interior pipe is positioned at the evaporation ends of outer tube, and pipework condensation end top is provided with an opening in this.

2. heat pipe as claimed in claim 1 is characterized in that: interior pipe is fixed in the outer tube by its outside supporting construction.

3. heat pipe as claimed in claim 2 is characterized in that: this supporting construction becomes chamber up and down with interior pipe with separated between outer tube, this two chamber communicates with the outer tube condensation end at the outer tube evaporation ends.

4. heat pipe as claimed in claim 1 is characterized in that: the bottom interior surface of this outer tube be one from the outer tube condensation end to inclined plane that the outer tube evaporation ends tilts.

5. heat pipe as claimed in claim 1 is characterized in that: the inclined plane of the outer surface of upper of pipe for tilting from the outside pipework condensation end of outer tube evaporation ends in this.

6. heat pipe as claimed in claim 1 is characterized in that: be provided with capillary structure in the pipe in this.

7. heat pipe as claimed in claim 1 is characterized in that: pipe evaporation ends one end was provided with one and bends towards the inner kink of interior pipe in this opening relied on.