CN202889857U

CN202889857U - Heat conducting member

Info

Publication number: CN202889857U
Application number: CN 201220450492
Authority: CN
Inventors: 廖南练
Original assignee: Special Heat Transfer Technology (zhongshan) Co Ltd
Current assignee: Special Heat Transfer Technology (zhongshan) Co Ltd
Priority date: 2012-09-05
Filing date: 2012-09-05
Publication date: 2013-04-17
Anticipated expiration: 2022-09-05

Abstract

The utility model provides a heat conducting member, which is used for transmitting the heat radiated from a heat source to a radiator. The heat conducting member comprises a heat-conducting plate attached to the heat source and a heat-conducting pipe arranged on the heat-conducting plate and connected with the heat conducting member; a vacuum accommodation chamber is formed by the enclosure of the heat-conducting plate and the heat-conducting pipe; operating fluid is provided in the vacuum accommodation chamber; the inner wall of the heat-conducting pipe is provided with a liquid absorption core layer; one side surface of the heat-conducting plate is provided with an annular groove; one end of the heat-conducting pipe is provided with a flange fixedly clamped in the annular groove; and a liquid absorption core layer is arranged at the enclosure zone of the inner ring of the annular groove on the heat-conducting plate member. According to the utility model, the plate is provided with the annular groove, the pipe is provided with the flange, the flange is rightly arranged in the annular groove in a buckling manner, the heat conducting member is approximate to the integral structure comprising a copper plate and a copper pipe, the contact-making surface is large when the flange and the plate are welded together, thereby the thermal resistance between the flange and the plate is reduced, the area of the liquid absorption core layer is increased, the structures of the plate and the pipe are simple, and processing is very convenient.

Description

A kind of heat-conducting piece

Technical field

The hot conduction of the utility model field relates in particular to a kind of improvement of heat-conducting piece structure.

Background technology

Electronic component integrated and microminiaturized so that heat is also relatively concentrated, will cause the electronic component local temperature too high if can not in time distribute, and affects its normal operation.General heat dissipation element commonly used is mainly heat pipe, temperature-uniforming plate, thermal conductance post and radiating fin etc., usually thermal source is affixed on the temperature-uniforming plate, in time distribute by the heat pipe that is connected with temperature-uniforming plate or thermal conductance post and the radiating fin adapting device heat with electronic component.Because present heat pipe, thermal conductance post and temperature-uniforming plate all is to process separately respectively, if the heat abstractor of system only adopts heat pipe or heating column or adopts simultaneously heat pipe and temperature-uniforming plate, all can there be so the excessive problem of contact heat resistance between heat-conducting substrate and heat pipe or thermal conductance post, temperature-uniforming plate and the heat pipe, affect the heat transfer efficiency of whole heat abstractor, and some has the heat-conducting piece of integrated function, but structure is complicated, and processing is inconvenient.

The utility model content

The purpose of this utility model is to overcome the defective of prior art, provides that a kind of contact heat resistance is little, the heat-conducting piece of high-efficiency heat conduction.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of heat-conducting piece is provided, for the heat transferred radiator that thermal source is distributed, comprise that one fits in the heat conduction plate on the described thermal source and is located on the described heat conduction plate and the heat conduction pipe fitting that links to each other with described radiator, described heat conduction plate and described heat conduction pipe fitting enclose and form the vacuum container cavity, the built-in hydraulic fluid of described container cavity, and the inwall of described heat conduction pipe fitting is equipped with the imbibition sandwich layer, described heat conduction plate one side surface is provided with cannelure, described heat conduction pipe fitting one end is provided with the flange that is fastened in the described cannelure, and the interior ring of described heat conduction plate pressed on ring shape groove encloses the district and is provided with the imbibition sandwich layer.

Further, the contact-making surface of described thermal source and described heat conduction plate encloses in the district over against the interior ring of described cannelure.

Further, the connecting end surface of described flange is provided with the imbibition sandwich layer.

Particularly, described imbibition sandwich layer all is made as the copper powder layer through oversintering.

Further, described heat conduction pipe fitting is provided with the first reducing away from heat conduction plate end.

Further, also comprise the heating column that at least one inwall is provided with the imbibition sandwich layer and all is connected with described radiator, end away from the heat conduction plate of described heat conduction pipe fitting also is provided with second reducing at least, and described the second reducing connection corresponding to described heating column and described container cavity and each described heating column inner chamber connect.

Again further, the end away from the second reducing of described heating column is provided with the 3rd reducing.

Particularly, all add the imbibition sandwich layer junction of the imbibition sandwich layer of described flange and described heat conduction plate liquid-sucking core layer junction and described heating column and described heat conduction pipe fitting the copper mesh structure.

Further, the connecting end surface of described flange is that the connecting end surface of plane or described flange is provided with thin reinforcement.

Further, described heat conduction plate is provided be used to the connecting hole that is fixed on the described thermal source.

The utlity model has following technique effect:

The utility model just is fastened on the flange of heat conduction pipe fitting in the cannelure of heat conduction plate, so that the heat conduction pipe fitting is embedded in the heat conduction plate, the inner chamber of heat conduction pipe fitting and heat conduction plate are structure as a whole, approximate function integration with temperature-uniforming plate and heat pipe, and the interior ring of flange and heat conduction plate to enclose the contact area in district larger, reduce the thermal resistance between heat conduction pipe fitting and the heat conduction plate, also strengthened the area that is coated with of imbibition sandwich layer simultaneously, be conducive to the heat transfer efficiency of whole heat-conducting piece; And each structure of heat-conducting piece is also all fairly simple, convenient processing.

Description of drawings

Fig. 1 is copper coin structural representation among the utility model embodiment;

Fig. 2 is the utility model preferred embodiment structural representation;

Fig. 3 is the structural representation that vacuumizes among Fig. 2 embodiment;

Fig. 4 is the structural representation that the utility model comprises heat pipe embodiment;

Fig. 5 is the A place enlarged drawing of Fig. 2.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Referring to Fig. 1, Fig. 2 and Fig. 5, the utility model embodiment provides a kind of heat-conducting piece, for the heat transferred radiator (not shown) that the thermal source (not shown) is distributed, mainly comprise the copper pipe 200 that one side is fitted in the copper coin 100 on thermal source surface and is welded on copper coin 100 another sides 110, and copper pipe 200 is located in the radiator, copper pipe 200 encloses the container cavity 300 that forms vacuum with copper coin 100, container cavity 300 is built-in with hydraulic fluid, and is equipped with imbibition sandwich layer 211 at the inwall 210 of copper pipe 200; Another side 110 at copper coin 100 is provided with a cannelure 111, and the interior ring of cannelure 111 encloses district 120 and is provided with imbibition sandwich layer 121 in also, and is provided with flange 220 at the link of copper pipe 200 and copper coin 100, and flange 220 just is fastened in the cannelure 111.Under the effect of flange 220 and cannelure 111, copper coin 100 forms integral structure with copper pipe 200, and connection area between the two is larger, so that thermal resistance between the two is less, also strengthen simultaneously the area that is coated with of imbibition sandwich layer, be beneficial to the heat-conducting effect of heat-conducting piece; Copper coin 100 is relative with the structure of copper pipe 200 all fairly simple, easy to process, and also only with airtight with cannelure 111 welding the flange 220 of copper pipe 200, operation is also simple during installation.

Further, copper coin 100 will enclose in the district 120 over against interior ring with the contact-making surface of thermal source.When the thermal source transferring heat, heat just in time substantially all imports in the container cavity 300 through copper coin 100 like this, thereby so that the heat conduction of this process is more efficient.

Again further, connecting end surface 221 at flange 220 also is provided with imbibition sandwich layer 222, flange 220 embed cannelure 111 interior after, the imbibition sandwich layer 222 of flange 220 connecting end surfaces 221 and interior ring enclose district's 120 interior imbibition sandwich layers 121 and are connected airtightly, have strengthened the imbibition effect and have been beneficial to heat conduction.

In the concrete scheme of the present embodiment, each imbibition sandwich layer is the copper powder layer of sintering, and is not only simple and convenient, and it also has stronger adsorption capacity, also greatly improved thermal resistance radially simultaneously, is beneficial to heat conduction.

Referring to Fig. 3, when making heat-conducting piece, copper pipe 200 be provided with the first reducing 230 away from the copper coin end, be used for connecting vacuum exhaust pipe 400, so that be the vacuum state that hydraulic fluid is only arranged in the container cavity 300, and seam seals the first reducing 230 after finishing the operation of bleeding.

Further referring to Fig. 4, another program of the present embodiment, when distant between radiator and thermal source, can also be at copper pipe 200 be provided with at least second reducing 240 away from copper coin 100 ends, and all be welded with at each the second reducing 240 place connect radiator thin copper pipe 500 as heating column, and so that the inner chamber 510 of container cavity 300 and each thin copper pipe 500 connects, the inwall 520 of each thin copper pipe 500 is equipped with the imbibition sandwich layer 521 with the copper powder sintering, simultaneously thin copper pipe 500 is provided with for the 3rd reducing 530 that connects vacuum exhaust pipe 400 away from the second reducing 240 ends, and seam sealing after finding time.

The imbibition sandwich layer 222 of the imbibition sandwich layer 121 that further, encloses district 120 at the interior ring of cannelure 111 and imbibition sandwich layer 222 junctions of flange 220 and copper pipe 200 is equipped with copper mesh structure (not shown) with the junction of thin copper pipe 500.Even like this imbibition sandwich layer 121 and imbibition sandwich layer 222 in conjunction with the time have the situation that contacts the slit, also can realize that the hydraulic fluid of condensation is back to the high-temperature region of copper coin 100 smoothly by copper mesh.

Certainly, the connecting end surface 221 of flange 220 can be made as the plane, also can be processed with in the plane thin reinforcement, the intensity of reinforcing flange 220 connecting end surfaces 221.

Further, be provided with the connecting hole (not shown) to make things convenient for being connected between copper coin 100 and the thermal source at copper coin 100, connecting hole can be screwed hole or through hole etc.

Be to strengthen the explanation to the present embodiment, below the processing step of heat-conducting piece made further set forth:

S1 intercepts a copper coin 100 that is a bit larger tham the thermal source surface, the wherein one side Vehicle Processing of copper coin 100 is had cannelure 111 greater than the thermal source surface, simultaneously in the tapping of the edge of copper coin 100 or perforation etc.

S2 intercepts all suitable copper pipes 200 of a segment length diameter, end at copper pipe 200 is processed with flange 220, and flange 220 just is fastened in the cannelure 111, the connecting end surface 221 of flange 220 can be processed into the even surface vertical with copper pipe 200 axis, can also process reinforcement at even surface; The other end of copper pipe 200 is processed with a reducing at least.

S3 cleans the copper coin 100 that machines, dry with copper pipe 200.

S4 applies copper powder in the district 120 that encloses of the cannelure 111 interior rings of copper coin 100, and inner surface 210 and flange 220 connecting end surfaces 221 at copper pipe 200 all scribble copper powder simultaneously.

The copper coin 100 that S5 will scribble copper powder carries out respectively sintering with the copper pipe 200 that applies copper powder.

S6 puts copper mesh between the connecting end surface 221 of the cannelure 111 of copper coin 100 and copper pipe 200 flanges 220, weld simultaneously airtight; Can also be at the thin copper pipe 500 of the airtight welding of reducing place of copper pipe 200 if need, thin copper pipe 500 inwalls 510 also sintering have copper powder, and one of them thin copper pipe 510 1 end also is processed with reducing, and thin copper pipe 500 has also been put copper mesh with the faying face of copper pipe 200.

S7 carries out annealing in process to the heat-conducting piece after welding.

S8 from reducing to copper pipe 100 filling hydraulic fluids.

The S9 reducing connects in 400 pairs of copper pipes 100 of vacuum exhaust pipe finds time, and flattens behind the bake out and seals reducing.

Reducing after S10 will flatten adopts the argon arc welding seam airtight.

Certainly, in the process of processing heat-conducting piece, the order of S1 and S2 can be put upside down, and processes first copper pipe 200 and copper coin 100 is processed again.

The above only is the utility model preferred embodiment; its structure is not limited to the above-mentioned shape of enumerating; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims

1. heat-conducting piece, for the heat transferred radiator that thermal source is distributed, comprise that one fits in the heat conduction plate on the described thermal source and is located on the described heat conduction plate and the heat conduction pipe fitting that links to each other with described radiator, described heat conduction plate and described heat conduction pipe fitting enclose and form the vacuum container cavity, the built-in hydraulic fluid of described container cavity, and the inwall of described heat conduction pipe fitting is equipped with the imbibition sandwich layer, it is characterized in that: described heat conduction plate one side surface is provided with cannelure, described heat conduction pipe fitting one end is provided with the flange that is fastened in the described cannelure, and the interior ring of described heat conduction plate pressed on ring shape groove encloses the district and is provided with the imbibition sandwich layer.

2. a kind of heat-conducting piece as claimed in claim 1, it is characterized in that: the contact-making surface of described thermal source and described heat conduction plate encloses in the district over against the interior ring of described cannelure.

3. a kind of heat-conducting piece as claimed in claim 2, it is characterized in that: the connecting end surface of described flange is provided with the imbibition sandwich layer.

4. such as each described a kind of heat-conducting piece of claim 1-3, it is characterized in that: described imbibition sandwich layer all is made as the copper powder layer through oversintering.

5. a kind of heat-conducting piece as claimed in claim 1, it is characterized in that: the end away from the heat conduction plate of described heat conduction pipe fitting is provided with the first reducing.

6. a kind of heat-conducting piece as claimed in claim 1, it is characterized in that: also comprise the heating column that at least one inwall is provided with the imbibition sandwich layer and all is connected with described radiator, end away from the heat conduction plate of described heat conduction pipe fitting also is provided with second reducing at least, and described the second reducing connection corresponding to described heating column and described container cavity and each described heating column inner chamber connect.

7. a kind of heat-conducting piece as claimed in claim 6 is characterized in that: described heating column be provided with the 3rd reducing away from the second necking end.

8. a kind of heat-conducting piece as claimed in claim 6, it is characterized in that: all add the imbibition sandwich layer junction of the imbibition sandwich layer of described flange and described heat conduction plate liquid-sucking core layer junction and described heating column and described heat conduction pipe fitting the copper mesh structure.

9. a kind of heat-conducting piece as claimed in claim 1, it is characterized in that: the connecting end surface of described flange is that the connecting end surface of plane or described flange is provided with thin reinforcement.

10. a kind of heat-conducting piece as claimed in claim 1, it is characterized in that: described heat conduction plate is provided be used to the connecting hole that is fixed on the described thermal source.