CN101600322B

CN101600322B - Heat radiator

Info

Publication number: CN101600322B
Application number: CN200810067582XA
Authority: CN
Inventors: 吴宜强; 陈俊吉
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2008-06-04
Filing date: 2008-06-04
Publication date: 2011-12-28
Anticipated expiration: 2028-06-04
Also published as: CN101600322A

Abstract

The invention relates to a heat radiator for radiating the heat of an electronic component fixed on a circuit board. The heat radiator comprises a base board, a cooling fin group, a heat pipe and a fan, wherein the cooling fin group is arranged above the base board, the heat pipe is used for connecting the base board and the cooling fin group, and the fan is arranged on one side of the cooling fin group. The heat radiator also comprises a fan fixed frame fixed on one side of the cooling fin group, wherein the fan is fixed on the fixed frame; a supporting frame fixed on the fan fixed frame which comprises a fixing part and two supporting arms, the fixing part is fixed on the base board; the two supporting arms extend from the fixing part, and the two supporting arms are fixedly connected with the fan so as to supporting the fan. Compared with the prior art, the fan of the heat radiator is supported by the supporting frame, thereby the pressure on the heat pipe from the fan is reduced, the press deformation of the heat pipe is avoided, and the heat radiating efficiency of the heat radiator is ensured.

Description

Heat abstractor

Technical field

The present invention relates to a kind of heat abstractor, particularly to the heat abstractor of electronic element radiating.

Background technology

As everyone knows, electronic component such as central processing unit produces a large amount of heat in running.For preventing that thereby this electronic component from making its temperature rising cause its fluctuation of service, this electronic component need install a heat abstractor usually additional with auxiliary its heat radiation because of the accumulation of heat.

Traditional tower heat abstractor is to be stacked on the base by the radiating fin of heat pipe with some parallel interval settings, radiating fin one side is installed a fan simultaneously, radiating fin and fan only rely on heat pipe to support, when after radiator work a period of time or in the transportation, owing to the gravity and the frequent radiating efficiency that causes the heat pipe distortion to influence heat abstractor that shakes of fan.

Summary of the invention

In view of this, be necessary to provide the heat abstractor of the not yielding and good heat dispersion performance of a kind of heat pipe.

A kind of heat abstractor, be used for being fixed in the electronic element radiating on the circuit board, this heat abstractor comprises a substrate, be arranged at a groups of fins of substrate top, connect a heat pipe of substrate and groups of fins and be arranged at a fan of groups of fins one side, wherein said heat abstractor also comprises a fan Fixture and a bracing frame, described fan Fixture is fixed in a side of groups of fins, described fan is fixed on the described fan Fixture, support frame as described above comprises the fixed part that is fixed on the described substrate and two support arms that extend from fixed part, thereby described two support arms are fixedlyed connected supports fan with fan.

Compared with prior art, the fan of heat abstractor of the present invention is supported by bracing frame, thereby has reduced the pressure of fan opposite heat tube, thereby has avoided the heat pipe compressive deformation, has ensured the radiating efficiency of heat abstractor.

With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional assembly diagram of heat abstractor of the present invention.

Fig. 2 is the three-dimensional exploded view of heat abstractor among Fig. 1.

Fig. 3 is the three-dimensional exploded view of another angle of heat abstractor among Fig. 1.

Embodiment

As shown in Figures 1 and 2, heat abstractor of the present invention is used for being fixed in heat-generating electronic elements (figure does not show) heat radiation on the circuit board (figure does not show).This heat abstractor comprise with a substrate 20 of this heat-generating electronic elements contact, be positioned at substrate 20 tops a groups of fins 10, is connected groups of fins 10 and substrate 20 three heat pipes 30, be installed on two fan Fixtures 50 of groups of fins 10 1 sides, a bracing frame 70 of the fan 60, a connection fan 60 and the substrate 20 that are connected with fan Fixture 50, reach substrate 20 be fixed on two fixed mounts 40 on the circuit board.

Described three heat pipes 30 are provided with at interval and all take the shape of the letter U.Each heat pipe 30 comprises straight evaporation section 31, two linkage sections 33 that spontaneous evaporation section 31 relative two lateral bucklings extend and two condensation segments 35 that vertically extend from two linkage sections 33.

Described groups of fins 10 comprises some being parallel to each other and fin 11 that equidistant buckle is provided with.Each fin 11 is roughly T-shaped, and it has the body 110 of a rectangle and a rectangle extension 111 that outwards protrudes out from body 110 middle parts.Each fin 11 bodies 110 left and right sides opposite end is respectively arranged with a buckle structure (figure is mark not), is used to connect adjacent fin 11.The forward edge place of body 110 opposite ends of each fin 11 is provided with a location notch 13 respectively in order to cooperate with fan Fixture 50.The opposite end of each fin 11 body 110 dashes respectively and is provided with three through holes 15.The condensation segment 35 of heat pipe 30 is arranged in respectively in these through holes 15, and supports these fin 11.

Please consult Fig. 3 simultaneously, described substrate 20 comprises that a fixed head 23 and is positioned at the loading plate 21 of fixed head 23 belows.This loading plate 21 is roughly corresponding with the shape of fixed head 23, and both are by the heat conductivility good metal such as copper, aluminium etc. are made and roughly rectangular.These loading plate 21 middle parts offer three parallel and accepting grooves 213 at interval, and these fixed head 23 middle parts offer the holddown groove 233 corresponding with accepting groove 213.Passage is accommodated in these accepting grooves 213 and holddown groove 233 common formation three.The evaporation section 31 of heat pipe 30 is contained in these and accommodates in the passage, and the linkage section 33 of heat pipe 30 is positioned at the relative both sides of substrate 20.Groups of fins 10 is positioned at the top of fixed head 23 and is provided with at interval with described fixed head 23.

Described two fixed mounts 40 are installed on the rear and front end of the loading plate 21 of substrate 20 respectively.Each fixed mount 40 comprises the installation portion 41 that is connected with loading plate 21 and from two angles 43 of the outward-dipping extension of installation portion 41 opposite ends.The opposite end of loading plate 21 is located in 41 of the installation portions of two fixed mounts 40.Four jiaos of fixed head 23 cooperate with double-screw bolt (figure is mark) that two installation portions, 41 two ends wear respectively and are welded in loading plate 21 upper surfaces, thereby substrate 20 is fixed on the fixed mount 40.Two fixtures 45 pass two angles 43 of a fixed mount 40 and cooperate with circuit board and substrate 20 is fixed on the circuit board.

Described two fan Fixtures 50 cooperate with the location notch 13 of groups of fins 10 respectively.Each fan Fixture 50 is a bending metal lamellar body, comprise the portion that plugs 51 of a lengthwise, certainly plug portion's clamping part 53 that vertically extend towards the fan bending at two ends 51 about, certainly plug a lengthwise stop section 55 that the vertical outwards bending of portion's 51 1 sides extends, and from the stop section two installing departments 57 of two ends vertical extent, connection clamping part 53 about in the of 55.The middle part of each installing department 57 offers an installation hole 571.The portion that plugs 51 of two fan Fixtures 50 inserts respectively in the location notch 13 of groups of fins 10, its clamping part 53 is replaced the two ends up and down of groups of fins 10, its stop section 55 lays respectively at the relative both sides of groups of fins 10 and against groups of fins 10, its installing department 57 is positioned at the front side of groups of fins 10.

Support frame as described above 70 is a bending metal lamellar body, roughly takes the shape of the letter U.This bracing frame 70 comprises that a straight fixed part 71 reaches two support arms 73 that upwards bend extension from fixed part 71 opposite ends.Two screws (figure mark) pass the fixed part 71 of this bracing frame 70 and cooperate with fixed head 23 front ends of substrate 20 and bracing frame 70 is fixed on the substrate 20.

Described fan 60 is positioned at the front side of radiator fin group 10, and the fixed head 23 of its bottom and substrate 20 is provided with at interval.This fan 60 has a fan frame and is placed in the motor of fanning in the frame.This fan frame comprises the two square plate bodys that be arranged in parallel 61,63, and four jiaos of this two plate body 61,63 offer corresponding installing hole 611,631 respectively.Four long spiro nails 80 pass the installing hole 611,631 of fan 60 respectively, and cooperate with the installation hole 571 of the installing department 57 of fan Fixture 50 and fan 60 is fixed on the fan Fixture 50.Two support arms 73 of bracing frame 70 are folded between the plate body 61,63 of fan 60, and are resisted against two corners of plate body 63 lower ends.Two long spiro nails 80 that are positioned at fan 60 lower ends pass two support arms 73 of bracing frame 70, and bracing frame 70 is connected with fan 60.So, bracing frame 70 has carried the weight of the fan 60 of groups of fins 10 1 sides, thereby has alleviated the pressure that heat pipe 30 is born, thereby the compressive deformation of having avoided heat pipe 30 because load is excessive has been guaranteed the heat dispersion of heat abstractor.

Claims

1. heat abstractor, be used for being fixed in the electronic element radiating on the circuit board, this heat abstractor comprises a substrate, be arranged at a groups of fins of substrate top, connect a heat pipe of substrate and groups of fins and be arranged at a fan of groups of fins one side, it is characterized in that: described heat abstractor also comprises a fan Fixture and a bracing frame, described fan Fixture is fixed in a side of groups of fins, described fan is fixed on the described fan Fixture, support frame as described above comprises the fixed part that is fixed on the described substrate and two support arms that extend from fixed part, thereby described two support arms are fixedlyed connected supports fan with fan.

2. heat abstractor as claimed in claim 1 is characterized in that: support arm is connected with fan with fan thereby some long spiro nails wear described support arm.

3. heat abstractor as claimed in claim 1 is characterized in that: support frame as described above is a metal lamellar body, and roughly takes the shape of the letter U, and described two support arms extend upward formation from described fixed part opposite end.

4. heat abstractor as claimed in claim 3 is characterized in that: described fan comprises that one fans frame and is placed in the motor of fanning in the frame, and described fan frame has two mutual parallel plate bodys, and the support arm of support frame as described above is between two plate bodys.

5. heat abstractor as claimed in claim 4 is characterized in that: described plate body is square, and described two support arms are resisted against the plate body lower end away from groups of fins, the setting of being separated by of described groups of fins and fan bottom and described substrate.

6. heat abstractor as claimed in claim 1, it is characterized in that: described fan Fixture comprises the portion of plugging of a lengthwise and two installing departments that extend from the portion of plugging, the described portion of plugging inserts in the groups of fins, and described installation site is connected in a side of groups of fins and with fan.

7. heat abstractor as claimed in claim 6, it is characterized in that: described fan Fixture further comprise from the portion of plugging up and down two clamping parts that extend towards the fan bending of two ends, plug a lengthwise stop section that bends extension outside portion's one side direction certainly, described two installing departments extend and the connection clamping part from the stop section opposite end, described clamping part is replaced the top and the bottom of groups of fins, and described stop section is positioned at the groups of fins outermost end and against groups of fins.

8. heat abstractor as claimed in claim 1 is characterized in that: described heat pipe comprises an evaporation section and a condensation segment, and described evaporation section is fixed in the substrate, and described condensation segment wears and support described groups of fins.

9. heat abstractor as claimed in claim 8 is characterized in that: described substrate comprises a loading plate and is positioned at a fixed head of loading plate top that the evaporation section of described heat pipe is located between described loading plate and the fixed head.