CN202734643U

CN202734643U - Fluted tube with outer fin structure

Info

Publication number: CN202734643U
Application number: CN 201220419537
Authority: CN
Inventors: 李庆; 胡忠海; 汤勇; 卿剑波; 陈维
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-02-13
Anticipated expiration: 2022-08-22

Abstract

The utility model discloses a fluted tube with an outer fin structure. The fluted tube comprises a tube body, wherein multiple outer fins are distributed on the outer wall of the tube body in an array mode, the outer fins are mutually spaced, and the mutual spaces form channels; the inner wall of the tube body is provided with a plurality of internal teeth at intervals along the axial direction of the pipe body, and inner grooves are formed on the spaces among the internal teeth; the tube body, the outer fins and the internal teeth are of an integrally-molded structure, contact thermal resistance does not exist between the outer fins and the tube body and between the internal teeth and the tube body, and the heat-conducting property is better; the intensity of the outer fins and the internal teeth is high, the tube body, the outer fins and the internal teeth are of the integrally-molded structure which has less possibility of dropping, the geometric shape parameter is easy to adjust, the external surface of the tube body adopts an outer fin structure, and the external surface area of the tube body is greatly increased; when air convection flows from the surface of the tube body, a turbulent flow is mainly adopted due to the blocking action of the outer fins, and the heat transfer efficiency is greatly improved; and a groove structure is generated at the inner surface of the tube body so as to increase the capillary force of the inner surface of the tube body, and the tube body can operate under an unpowered condition like a heat pipe.

Description

A kind of fluted tube with outer fin structure

Technical field

The utility model relates to the electronic applications thermal component, relates in particular to a kind of fluted tube with outer fin structure.

Background technology

Along with progress and the development of producing, the heat flow density of high-power electronic device increases severely, and the heat dissipation problem of electronic equipment becomes a large difficult point that hinders industry development.Seek a kind of radiating element simple in structure, that radiating efficiency is high and become the human target of pursuing in recent years.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming and defect of prior art, and a kind of fluted tube with outer fin structure is provided.The utility model increases the area of outer surface of tube body and inner surface, strengthens steam-condensation and convection heat transfer' heat-transfer by convection performance, significantly improves the heat transfer property of body.

The utility model is achieved through the following technical solutions:

A kind of fluted tube with outer fin structure comprises body, and the outer wall array distribution of body has a plurality of outer fins, space between each outer fin, and the place, space forms conduit; Described inboard wall of tube body is along several internal tooths that axially offer the space of body, and the interval between the internal tooth forms internal channel.

The two ends of described body can be hermetically-sealed constructions, also can be non-hermetically-sealed constructions.Described body, outer fin, the internal tooth structure that is formed in one.

Described outer fin is rectangular, trapezoidal, in V-arrangement or the U-shaped any one.

In rectangular, the trapezoidal and inverted V-shaped of described internal tooth any one.

Compared with prior art, the utility model advantage and effect are:

(1) there is not thermal contact resistance in the utility model body, outer fin, the internal tooth structure that is formed in one between outer fin and internal tooth and the body, and heat conductivility is better; Outer fin, internal tooth intensity height, outer fin and internal tooth and body are structure as a whole, difficult drop-off, and its geometric shape parameters is adjusted easily.

(2) the utility model fin structure outside outer surface of tube body adopts increases the exterior surface area of body greatly; When cross-ventilation flows through from the body surface, because the barrier effect of outer fin mainly take turbulent flow as main, has improved heat exchange efficiency greatly.

(3) the utility model generates groove structure at inner surface of tube body, increases the area of inner surface, improves heat exchange efficiency; Because groove structure can increase the capillary force of inner surface of tube body, and body can be worked in unpowered situation as heat pipe.

(4) the utility model reliable working performance, radiating efficiency height, technological means is simple and easy to do.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model cross section structure schematic diagram.

Fig. 3 is the cross section structure schematic diagram of the trapezoidal outer fin of the utility model.

The specific embodiment

Below in conjunction with specific embodiment the utility model is done further concrete detailed description the in detail.

Embodiment

Such as Fig. 1, Fig. 2, shown in Figure 3, the utlity model has the fluted tube of outer fin structure, comprise body 3, the outer wall array distribution of body 3 has a plurality of outer fins 2, space between each outer fin 2, the place, space forms conduit 1; Described body 3 inwalls are along several internal tooths 4 that axially offer the space of body 3, and the interval between the internal tooth 4 forms internal channel 5.

According to different heat radiation requirements, hermetically-sealed construction can be made in the two ends of described body 3, is filled with a certain amount of working medium at body 3 before the sealing, and then vacuumizes and with closed at both ends, make it become the heat pipe that need not to consume energy, and carry out heat exchange work; Two ends such as body 3 are unsealed structure, and then liquid can be passed through in body 3 inside, finishes heat exchange work.

Described body 3, outer fin 2, internal tooth 4 can be integrated formed structures.

Described outer fin 2 can be rectangular, trapezoidal, in V-arrangement or the U-shaped any one, certainly internal tooth 4 also can be rectangular, trapezoidal and inverted V-shaped in any one.

Body 3 adopts the higher metal material of thermal conductivity factor.

Conduit 1 also can be finished by planing or milling operation.

Internal tooth 4 can utilize high speed spinning drawing technique to form, and this technology is used comparatively ripe, reliable and stable, can be mass.

The quantity of outer fin 2 and internal tooth 4 is unrestricted, can determine according to the diameter of body 1.

As mentioned above, just can realize preferably the utility model.

Above-described embodiment only is the better embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other are any not to deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.

Claims

1. the fluted tube with outer fin structure is characterized in that, comprises body, and the outer wall array distribution of body has a plurality of outer fins, space between each outer fin, and the place, space forms conduit; Described inboard wall of tube body is along several internal tooths that axially offer the space of body, and the interval between the internal tooth forms internal channel.

2. the fluted tube with outer fin structure according to claim 1 is characterized in that, the two ends of described body are hermetically-sealed construction.

3. each described fluted tube with outer fin structure is characterized in that according to claim 1～2, described body, outer fin, the internal tooth structure that is formed in one.

4. each described fluted tube with outer fin structure is characterized in that according to claim 1～2, and described outer fin is rectangular, trapezoidal, in V-arrangement or the U-shaped any one.

5. each described fluted tube with outer fin structure is characterized in that according to claim 1～2, any one in rectangular, the trapezoidal and inverted V-shaped of described internal tooth.