CN201360390Y

CN201360390Y - Heat radiator

Info

Publication number: CN201360390Y
Application number: CNU2008201296760U
Authority: CN
Inventors: 张耀伦
Original assignee: Dongguan Molex Interconnect Co Ltd; Molex LLC
Current assignee: Dongguan Molex Interconnect Co Ltd; Molex LLC
Priority date: 2008-12-26
Filing date: 2008-12-26
Publication date: 2009-12-09
Anticipated expiration: 2018-12-26

Abstract

The utility model relates to a heat radiator, which comprises a substrate, a heat transferring plate, a heat radiating fin assembly and three U-shaped heat pipes which pass through and are arranged on the heat radiation sheet unit, wherein the U-shape heat pipe comprises a heat absorption section and two heat releasing sections, and the heat releasing sections pass through and are arranged on the heat radiation sheet unit, and the middle part of the substrate is provided with a through hole, and two opposite sides of the through hole of the substrate are respectively provided with a lug boss part; the upper surface of the heat transferring plate is provided with three grooves, and two opposite sides of the heat transferring plate are respectively provided with a flange; the heat transferring plate is arranged inside the through hole of the substrate, and the two flanges of the heat transferring plate are correspondently fixed on the two lug boss parts of the substrate, and the heat absorption section of the U-shaped heat pipes is correspondently fixed inside the grooves of the heat transferring plate. The heat transferring plate of the heat radiator is uneasy to drop off the substrate, and the cost and the weight of the heat radiator are reduced.

Description

Radiator

Technical field

The utility model relates to a kind of radiator, relates in particular to a kind of heat-pipe radiator.

Background technology

The structure of heat-pipe radiator is varied, and industry is carried out heat sink conception optimization by different structural design modes, strives that obtained performance is good, the fansink designs that weight and cost are all lower.As: Chinese patent CN 200520001517.9 disclosed a kind of heat-pipe radiators, it comprises the pedestal that a side has peristome, and this pedestal is that aluminium is made; Be arranged on the heat-conducting plate of peristome, this heat-conducting plate is made with copper material or aluminium, and this heat-conducting plate is provided with at least one elongated slot; At least one heat pipe with heating end and colling end, this heating end are arranged in the elongated slot of this heat-conducting plate; Be arranged on the radiator on the pedestal, the biend of this radiator is respectively arranged with recess, the wherein corresponding setting of heating end of a recess and heat pipe, the colling end of heat pipe then is arranged on another indent of this radiator end face, this structure can reduce the overall weight of radiator, and increase the contact area of this heat pipe and radiator, thereby improve the heat conduction efficiency of this radiator.

Yet, the heat-pipe radiator structure of this prior art, because being the mode by the side solder bond, its pedestal and heat-conducting plate be fixed together, and this heat-conducting plate can be up and down with respect to pedestal before welding is fixing, therefore being difficult to pressurize when welding is close together two medial surfaces of this heat-conducting plate two lateral surfaces parallel with elongated slot and this pedestal opening portion, so that welding effect is good inadequately, causes bigger reduction heat dispersion of interface resistance or not prison welding between pedestal and the heat-conducting plate to cause heat-conducting plate to come off from pedestal easily.

And for example: the disclosed a kind of computer heat radiating device of Chinese patent CN01275062.X, it comprises fan, fin, some " U " shape heat pipes, heat-conducting plate and framework; Fin is made of the radiating fin that several are arranged in parallel; The openend of heat pipe vertically inserts in the fin and is affixed with fin, and the blind end of heat pipe is connected with the upper surface of heat-conducting plate; The lower surface of heat-conducting plate contacts with components and parts, and its heat that is produced when utilizing heat pipe central processing unit can be worked guides to fin fast and equably, again by fin and ventilation fan heat radiation.This design can utilize heat pipe that the heat on the heat-conducting plate is transmitted to fin apace and distribute, can promote the radiating efficiency of radiator significantly.

Yet, heat-conducting plate in the heat-pipe radiator structure of this prior art is made into integration with a kind of material, if adopt aluminium to make heat-conducting plate, then can be owing to the thermal conductivity of aluminium is lower, thus the heat that thermal resistance is difficult to greatly swimmingly components and parts be produced is transmitted on the whole heat-conducting plate; If the employing copper material, though the thermal conductivity of copper is higher, the heat that can comparatively swimmingly components and parts be produced is transmitted on the whole heat-conducting plate, because the price and the proportion of copper material are all higher, can correspondingly increase the cost and the weight of radiator again.

The utility model content

The utility model is intended to overcome the deficiencies in the prior art, and provides a kind of welding effect that helps obtaining preferably to make heat-conducting plate be difficult for coming off from pedestal, and the cost of radiator and all lower radiator of weight.

To achieve these goals, the utility model proposes a kind of radiator, comprise a pedestal, one heat-conducting plate, one groups of fins and be located at least one U-shaped heat pipe on the groups of fins, this U-shaped heat pipe comprises endotherm section and heat release section, wherein this heat release section is located on this groups of fins, a through hole is offered at this pedestal middle part, respectively is provided with a boss portion in the relative both sides of this through hole of this pedestal; The upper surface of this heat-conducting plate offers at least one groove, and the relative both sides of this heat-conducting plate respectively are provided with a flange; This heat-conducting plate is installed in the through hole of this pedestal, and two flange correspondences of this heat-conducting plate are fixed on two boss portion of this pedestal, and the endotherm section of described U-shaped heat pipe is then corresponding to be fixed in the described groove of this heat-conducting plate.

Described U-shaped heat pipe comprises an endotherm section and bends extended two heat release section respectively from the both sides of this endotherm section, be formed with a bending changeover portion between this heat release section and this endotherm section, two heat release section of described U-shaped heat pipe are arranged in this groups of fins, and this endotherm section exposes to this groups of fins and is placed in the described groove.

Both sides relatively in addition at this through hole are provided with a holding part, and the groove on this heat-conducting plate and this holding part connect, and the bending changeover portion of described U-shaped heat pipe exposes to this groups of fins and correspondence is housed in this holding part.

The holding part of this pedestal comprises the same number of storage tank with described U-shaped heat pipe, and the mutually perforation corresponding with the position of the described storage tank of this pedestal of the described groove on this heat-conducting plate.

Compared with prior art, useful technique effect of the present utility model is:

1) is provided with flange by both sides at heat-conducting plate, be provided with the design of boss portion in the through hole both sides of pedestal correspondence, make heat-conducting plate can't deviate from pedestal downwards, help when welding from above heat-conducting plate pressurizeed it is close on the pedestal, welding effect prevents that heat-conducting plate from getting loose thereby obtain preferably;

2) by fastener is replaced above heat-conducting plate, make the lower surface of heat-conducting plate cling to the design of the upper surface of a heat-generating electronic elements, can prevent further that heat-conducting plate from upwards coming off from pedestal;

3) pedestal and the heat-conducting plate made of copper by being used in combination aluminum, and the bending changeover portion of the ccontaining heat pipe of holding part is set on the pedestal of aluminum, thereby can satisfy under the prerequisite of heat dispersion, reduce the length of copper heat-conducting plate, thereby lower the weight and the cost of radiator.

Description of drawings

Fig. 1 is the stereogram of the radiator of the utility model preferred embodiment;

Fig. 2 is the three-dimensional exploded view at a visual angle of the radiator of the utility model preferred embodiment;

Fig. 3 is the three-dimensional exploded view at another visual angle of the radiator of the utility model preferred embodiment;

Fig. 4 is the vertical view of the radiator of the utility model preferred embodiment;

Fig. 5 is that Y-Y among Fig. 4 is to cutaway view;

Fig. 6 is that Z-Z among Fig. 4 is to cutaway view.

Embodiment

Below in conjunction with accompanying drawing, the utility model is given elaboration further.

Referring to Fig. 1 to Fig. 6, radiator of the present utility model comprises pedestal 1, one heat-conducting plate, 2, one groups of fins 3 and is located in three U-shaped heat pipes 4 on the groups of fins 3.

With reference to Fig. 2,3, this pedestal 1 is made by aluminium; It has upper surface 14 and lower surface 15.Offer on this pedestal 1 and run through upper and lower surperficial 14,15 through hole 11, this through hole 11 is a rectangle.The inwardly prominent boss portion 12 that sets out in bottom in the relative both sides of the through hole 11 of this pedestal 1, and be respectively equipped with a holding part 13 in the both sides relatively in addition of this through hole 11, this holding part 13 comprises three storage tanks 131.

With reference to Fig. 2,3, this heat-conducting plate 2 is made by copper material; This heat-conducting plate 2 is also rectangular, and it has upper surface 24 and lower surface 25.The groove 21 that it is the plane that the upper surface 24 of this heat-conducting plate 2 is provided with three bottom surfaces, described groove 21 is corresponding with described storage tank 131; Each sets out a flange 22 to evagination the top of these heat-conducting plate 2 relative both sides.

With reference to Fig. 2,3, this groups of fins 3 is formed by stacking by a plurality of fin 35 that are parallel to pedestal 1 upper surface 14, and these fin 35 are provided with six perforation 37.Centre position below groups of fins 3 forms an opening 31.And offering a perforation 32 that runs through groups of fins 3 up and down at the middle position of groups of fins 3, this perforation 32 connects with this opening 31.This groups of fins 3 comprises that also one covers the wind scooper 33 of these fin 35 tops, and to limit the side inflow of air-flow from fin 35, behind the fin 35 of flowing through, the opposite side from fin 35 flows out again.

With reference to Fig. 3 and Fig. 5, each U-shaped heat pipe 4 comprises an endotherm section 41 and is positioned at two heat release section 43 of these endotherm section 41 both sides, this two heat release section 43 is extended by the vertical respectively bending in the both sides of this endotherm section 41, is formed with a bending changeover portion 42 between heat release section 43 and the endotherm section 41.These U-shaped heat pipes 4 are through flattening processing, and the upper surface and the lower surface of its endotherm section 41 are all the plane, thereby can cling to the bottom surface that groove 21 is the plane preferably, obtain heat-transfer effect preferably.

Describe the assembling process of radiator of the present utility model in detail hereinafter with reference to Fig. 2, Fig. 5 and Fig. 6.

At first this heat-conducting plate 2 is embedded in the through hole 11 of this pedestal 1, make the lower surface correspondence of two flanges 22 of this heat-conducting plate 2 be fitted in the upper surface of two boss portion 12 of this pedestal 1, thereby make six storage tanks, the 131 corresponding and mutual perforations on three grooves 21 and this pedestal 1 on this heat-conducting plate 2.

Two heat release section 43 on each U-shaped heat pipe 4 are arranged in the perforation 37 of groups of fins 3, endotherm section 41 and two bending changeover portions 42 then expose to below groups of fins 3, that be provided with opening 31 again.Endotherm section 41 correspondences with three U-shaped heat pipes 4 are encased in three grooves 21 of this heat-conducting plate 2 then, and the bending changeover portion 42 of three U-shaped heat pipes 4 then correspondence is housed in six storage tanks 131 of pedestal 1.

In the time of assembling, between two boss portion 12 of two flanges 22 of this heat-conducting plate 2 and pedestal 1, between the heat release section 43 of the perforation 37 of fin 35 and heat pipe 4 and the composition surface between the groove 21 of the endotherm section 41 of heat pipe 4 and heat-conducting plate 2 be coated with and spread welding compound, re-use anchor clamps (figure do not show) and add the endotherm section 41 that is pressed in heat-conducting plate 2 and heat pipe 4 from the top and make its groove 21 that clings to pedestal 1 and heat-conducting plate 2 respectively, heating makes after the welding compound fusing again that cooled and solidified can be weldingly fixed on each parts of this radiator together.

The last both sides that again these wind scooper 33 usefulness screw correspondences locked to this pedestal 1.

Next, in actual applications, can radiator of the present utility model be fastened to a heat-generating electronic elements (figure does not show) top by the fastener 5 in the opening 31 that is arranged on the groups of fins 3.Adjusting bolt 51 on the fastener 5 can be twisted solid operation by the screwdriver that is arranged in the perforation 32 on the groups of fins 3, make fastener 5 closely replace upper surface 24 at heat-conducting plate 2, cling to the heat-generating electronic elements top that needs heat radiation with the lower surface 25 of guaranteeing heat-conducting plate 2, so that radiator of the present utility model plays the effect of distribute heat preferably.

Compared with prior art, radiator of the present utility model, be provided with flange 22 by both sides at heat-conducting plate 2, both sides correspondence at the through hole 11 of pedestal 1 is provided with boss portion 12, thereby heat-conducting plate 2 can't be deviate from the through hole 11 of pedestal 1 downwards, 2 pressurizations are close on the boss portion 12 of pedestal 1 flange 22 from the top to heat-conducting plate to help using when welding anchor clamps (figure does not show), after the boss portion 12 that spreads upon pedestal 1 and the flange 22 welding compound cooled and solidified between the two of heat-conducting plate 2 it is combined, welding effect prevents that heat-conducting plate 2 from getting loose thereby obtain preferably; And by the bending changeover portion 42 of storage tank 131 ccontaining heat pipes 4 is set on the pedestal 1 of aluminum, thereby can satisfy under the prerequisite of heat dispersion, reduce the use of copper material by the length that reduces copper heat-conducting plate 2, and then lower the weight and the cost of radiator; Again by using fastener 5 to replace above heat-conducting plate 2, make the lower surface 25 of heat-conducting plate 2 cling to the upper surface of heat-generating electronic elements, can prevent further that heat-conducting plate 2 from upwards coming off from pedestal 1.

Mentioned quantity and top in the foregoing description, terms such as sidewall are used for explanation, it only is preferred embodiment of the present utility model, be not to be used to limit embodiment of the present utility model, those of ordinary skills are according to main design of the present utility model and spirit, can carry out corresponding flexible or modification very easily, for example be to adopt the mode of welding that the boss portion 12 of this pedestal 1 and the flange 22 of this heat-conducting plate 2 are combined in the present embodiment, and in other similar embodiment (figure does not show), can on boss portion and flange, offer screw, and use bolt that it is combined; Two flanges 22 in the present embodiment are to establish to evagination from the top of these heat-conducting plate 2 both sides, this two boss portion 12 is inwardly to dash forward in the bottom of the relative both sides of this through hole 11 from this pedestal 1 to establish, and in other similar embodiment (figure does not show), also can turn round, making its two flange is to establish to evagination from the bottom of these heat-conducting plate both sides, and this two boss portion is inwardly to dash forward on the top of the relative both sides of this through hole from this pedestal to establish; Holding part 13 in the present embodiment comprises three storage tanks 131, and also can change a bigger storage tank in other similar embodiment (figure does not show); These changes all have the effect similar with the utility model, so protection range of the present utility model should be as the criterion with the desired protection range of claims.

Claims

1. radiator, comprise a pedestal, one heat-conducting plate, one groups of fins and be located at least one U-shaped heat pipe on the groups of fins, described U-shaped heat pipe comprises endotherm section and heat release section, wherein said heat release section is located on this groups of fins, it is characterized in that: a through hole is offered at this pedestal middle part, respectively is provided with a boss portion in the relative both sides of the through hole of this pedestal; The upper surface of this heat-conducting plate offers at least one groove, and the relative both sides of this heat-conducting plate respectively are provided with a flange; This heat-conducting plate is installed in the through hole of this pedestal, and two flange correspondences of this heat-conducting plate are fixed on two boss portion of this pedestal, and the endotherm section of described U-shaped heat pipe is then corresponding to be fixed in the described groove of this heat-conducting plate.

2. radiator as claimed in claim 1, it is characterized in that: described U-shaped heat pipe comprises an endotherm section and bends extended two heat release section respectively from the both sides of this endotherm section, be formed with a bending changeover portion between this heat release section and this endotherm section, two heat release section of described U-shaped heat pipe are arranged in this groups of fins, and this endotherm section then exposes to this groups of fins and is fixed in the described groove.

3. radiator as claimed in claim 2, it is characterized in that: this pedestal respectively is provided with a holding part in the both sides relatively in addition of this through hole, groove on this heat-conducting plate and this holding part connect, and the bending changeover portion of described U-shaped heat pipe exposes to this groups of fins and correspondence is housed in this holding part.

4. radiator as claimed in claim 3 is characterized in that: each holding part of this pedestal comprises the same number of storage tank with described U-shaped heat pipe, and the mutually perforation corresponding with the position of the described storage tank of this pedestal of the described groove on this heat-conducting plate.

5. radiator as claimed in claim 1 is characterized in that: this pedestal is an aluminium material, and this heat-conducting plate is a copper material.

6. radiator as claimed in claim 1, it is characterized in that: two flanges of this heat-conducting plate are to establish to evagination from the top of these heat-conducting plate both sides, two boss portion of this pedestal be from this pedestal in the bottom of the relative both sides of this through hole inwardly prominent establishing, corresponding being fixed together of upper surface of the flange lower surface of this heat-conducting plate and this boss portion.

7. as each described radiator of claim 1 to 6, it is characterized in that: this radiator also comprises a fastener, and this fastener is the upper surface of replacing at this heat-conducting plate, thereby this radiator pressure is established the top that is fixed to an electronic component.

8. radiator as claimed in claim 7 is characterized in that: middle part, the below of this groups of fins is provided with an opening, and this fastener is to be installed in the opening of this groups of fins.

9. as each described radiator of claim 1 to 6, it is characterized in that: the lower surface of the endotherm section of described U-shaped heat pipe and the groove floor of this heat-conducting plate are all the plane.

10. as each described radiator of claim 1 to 6, it is characterized in that: the through hole of this pedestal and this heat-conducting plate are rectangle, and the boss portion of this pedestal and the flange of this heat-conducting plate are by solder bond together.