CN102543914A

CN102543914A - Heat radiator

Info

Publication number: CN102543914A
Application number: CN2010105791699A
Authority: CN
Inventors: 林孟娴
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: 2010-12-08
Filing date: 2010-12-08
Publication date: 2012-07-04

Abstract

The invention relates to a heat radiator, comprising a base, a heat pipe connected with the base, a fin group and a heat radiation cover sleeve. The fin group is arranged on the heat pipe and comprises a plurality of mutually parallel fins. The fins are provided with through holes for the heat pipe to pass through. The heat pipe comprises a pipe body and an invalid end connected with the pipe body. The diameter of the invalid end is smaller than the diameter of the pipe body. The pipe body and the fin group are in contact. The heat radiation cover sleeve penetrates through a part of the through holes of the fins so as to cover the invalid end and be in contact with the fins. The invalid end is in contact with the heat radiation cover sleeve.

Description

Radiator

Technical field

The present invention relates to a kind of radiator.

Background technology

Along with improving constantly of the central processing unit power of computer, the radiating requirements of central processing unit is also increasingly high, and heat pipe is widely used as the heat transfer unit (HTU) of central processing unit.Heat pipe length in blocks is generally at 100mm～300mm, and possibly can't use so long heat pipe in the computer radiator, at this time just need it be cut off, and crop sealed to let heat pipe bring into play usefulness again again.The position that cuts off just is called the tail that contracts, because the tail end that contracts can't utilize the principle of heat pipe to come heat conduction, therefore also is called invalid end.During use, the body of heat pipe is arranged in radiating fin and constitutes radiator, and the invalid end of heat pipe generally can expose to outside the radiating fin.But the material of this invalid end is the body material of heat pipe, promptly is generally copper, and this invalid end also can be through self as the medium that conducts heat.Therefore, the invalid end of heat pipe can't effectively be utilized, and makes the radiating efficiency of heat pipe and utilance lower.

Summary of the invention

In view of this, be necessary to provide a kind of radiating efficiency of heat pipe and radiator of utilance of improving.

A kind of radiator, it comprises pedestal, is connected in the heat pipe of this pedestal, fins group and dissipating cover cover.This fins group is installed in this heat pipe and comprises a plurality of fins that are parallel to each other; This fin offers the through hole that supplies this heat pipe to wear; This heat pipe comprises body and the invalid end that is connected with this body, and the diameter of this invalid end is littler than the diameter of this body, and this body contacts with this fins group; This dissipating cover cover wears the partial through holes of this fin to be covered on this invalid end and to contact with this fin, and this invalid end contacts with this dissipating cover cover.

Radiator provided by the invention; Install the dissipating cover cover additional and this dissipating cover cover is contacted with fin through invalid end at heat pipe; This invalid end also can have been strengthened radiating rate and heat dissipation capacity, and then improve the radiating efficiency and the utilance of heat pipe through this fin heat radiation.

Description of drawings

The schematic perspective view of a kind of radiator that Fig. 1 provides for first embodiment of the invention.

Fig. 2 is the part decomposing schematic representation of the radiator of Fig. 1.

Fig. 3 is the schematic cross-section of the radiator of Fig. 1 along the III-III line.

The schematic cross-section of a kind of radiator that Fig. 4 provides for second embodiment of the invention.

The main element symbol description

Radiator 100,200

Pedestal 10

Heat pipe 20,600

Fins group 30

Dissipating cover cover

40,80

Fixture 50

Fixing with through hole 101

First surface 102

Second surface 103

Groove 104

Body 201

Invalid end 202,602

Fin 301

Support column 60

Through hole 302

Lid cover through hole 303

Spring 502

Screw 501

Embodiment

To combine below graphic the present invention to be done further explain.

See also Fig. 1 to Fig. 3, a kind of radiator 100 that first embodiment of the invention provides comprises pedestal 10, heat pipe 20, fins group 30, dissipating cover cover 40 and fixture 50.The material of pedestal 10, this fins group 30 and this dissipating cover cover 40 can be selected preferable metallic copper of heat dispersion or aluminium for use.

This pedestal 10 roughly is cuboid, and it offers 4 respectively in 4 corners have fixing with through hole 101.This pedestal 10 comprise first surface 102 and with the opposing second surface 103 of this first surface 102.This first surface 102 and thermal source (figure does not show), contact conducts to this pedestal 10 with the heat with this thermal source through this first surface 102 like central processing unit, through this pedestal 10 heat is conducted to other heat dissipation element of heat pipe 20 and radiator 100 again.This second surface 103 offers groove 104.In this execution mode, the quantity of groove 104 is 2, and these 2 grooves 104 are parallel to each other.Be appreciated that in other embodiments the quantity of groove 104 can be other quantity, the heat pipe that is assembled 20 quantity of the quantity of groove 104 and this radiator 100 are complementary.

In this execution mode, the quantity of this heat pipe 20 is 2, and all is the U type.This heat pipe 20 is connected in this pedestal 10.This heat pipe 20 comprises body 201 and the invalid end 202 that is connected with this body 201.This body 201 contacts with this fins group 30, and body 201 utilizes the operation principle of heat pipe to dispel the heat.The diameter of this invalid end 202 is littler than the diameter of body 201.The sheathing material of body 201 and invalid end 202 also can be selected preferable metallic copper of heat dispersion or aluminium for use.

In this execution mode, this body 201 is the U type.Two ends that body 201 is heat pipe 20 away from an end and the invalid end 202 of invalid end 202.The horizontal tube body portion of this U type body 201 is contained in this groove 104; Therefore; Directly place on the pedestal 10 of not offering groove 104 compared with horizontal tube body portion body 201; Being contained in bodys 201 in this groove 104 has increased the contact area with pedestal 10, thereby has strengthened hot conduction of velocity.The two vertical tube part of this U type body 201 extends upward from this pedestal 10.

This fins group 30 is installed in this heat pipe 20 and comprises a plurality of fins that are parallel to each other 301.In this execution mode; Fin 301 is incorporated into together and is supported on through support column 60 on the pedestal 10, and simultaneously, support column 60 is also processed by heat dispersion preferable metallic copper or aluminium; The heat part of pedestal 10 can increase heated conducting path via support column 60 to fin 301 conduction; 60 of support columns have also increased the area of heat radiation as radiator.

This fin 301 offers the through hole 302 that supplies this heat pipe 20 to wear.In this execution mode, the aperture of the through hole 303 (calling lid cover through hole 303 in the following text) that the invalid end 202 of the heating tube of offering away from 2 fins 301 of pedestal 10 20 passes is bigger than the aperture of the through hole of offering on other fin 301 302.Be appreciated that length and the distance decision between adjacent two fins 301 of the visual dissipating cover cover 40 of quantity of the fin 301 that offers lid cover through hole 303, only need to guarantee that dissipating cover cover 40 and heat pipe 20 all contact with fin 301.

The diameter of this invalid end 202 is littler than the aperture of through hole 302 (comprising lid cover through hole 303).

This dissipating cover cover 40 wears the lid cover through hole 303 of this fin 301 to be covered on this invalid end 202 and to contact with this fin 301.In this execution mode, the end face of this invalid end 202 contacts with this dissipating cover cover 40.Therefore, the heat of this invalid end 202 can overlap 40 through dissipating cover and conducts to fin 301.

This fixture 50 wears this pedestal 10 so that this pedestal 10 is fixed on this thermal source.Particularly, in this execution mode, this fixture 50 comprises screw 501 and spring 502.This spring 502 is sheathed on this screw 501.This screw 501 wears this pedestal 10 fixing with through hole 101 so that this spring 502 contact between the nut of this pedestal 10 and this screw 501.The whole radiator 10 of the elasticity adjusting that spring 502 provides with respect to the perpendicularity of this thermal source so that radiator 100 contact with this thermal source better.

Radiator 100 provided by the invention; Install dissipating cover cover 40 additional and this dissipating cover cover 40 is contacted with fin 301 through invalid end 202 at heat pipe 20; This invalid end 202 also can be dispelled the heat through this fin 301; Strengthen radiating rate and heat dissipation capacity, and then improved the radiating efficiency and the utilance of heat pipe 20.

In addition; Because of in batch dissipating cover cover 40 has unified diameter, the lid that then just can open fixed diameter away from some fins 301 of pedestal 10 overlaps through hole 303, need not set different hole size because of invalid end 202 diameter variation of heat pipe 20; Reduced the manufacture difficulty of radiator 100; And dissipating cover cover 40 has good tight order of contact to reach the effect of heat conduction with fin 301 by this, utilizes the thermal conductive resin of metallic copper can the effect of heat pipe 20 heat conduction be amplified simultaneously, therefore; Each fin 301 of fins group 30 all can utilize heat radiation, has strengthened radiating efficiency.

See also Fig. 4, a kind of radiator 200 that second embodiment of the invention provides.Radiator 100 differences of the radiator 200 and first execution mode are that in radiator 200, the lateral surface of the invalid end 602 of heat pipe 600 all contacts with dissipating cover cover 80 with end face.Therefore, invalid end 602 has increased with the contact area of dissipating cover cover 80, and then has accelerated radiating rate.

In addition, those skilled in the art can also do other variation in spirit of the present invention.Certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims

1. radiator; It comprises pedestal, be connected in the heat pipe of this pedestal, fins group and dissipating cover cover; This fins group is installed in this heat pipe and comprises a plurality of fins that are parallel to each other, and this fin offers the through hole that supplies this heat pipe to wear, and this heat pipe comprises body and the invalid end that is connected with this body; The diameter of this invalid end is littler than the diameter of this body; This body contacts with this fins group, and this dissipating cover cover wears the partial through holes of this fin to be covered on this invalid end and to contact with this fin, and this invalid end contacts with this dissipating cover cover.

2. radiator as claimed in claim 1 is characterized in that, the material of this pedestal, this fins group and this dissipating cover cover is copper or aluminium.

3. radiator as claimed in claim 1 is characterized in that this heat pipe is the U type.

4. radiator as claimed in claim 3 is characterized in that, this pedestal comprises that first surface reaches and the opposing second surface of this first surface, and this first surface contacts with thermal source, and this second surface offers the groove of this body of tank.

5. radiator as claimed in claim 1 is characterized in that this radiator also comprises fixture, and this fixture wears this pedestal so that this pedestal is fixed.

6. radiator as claimed in claim 5 is characterized in that this fixture comprises screw and spring, and this spring housing is located at this screw, and this screw wears this pedestal so that this spring contacts between the nut of this pedestal and this screw.