CN2826513Y

CN2826513Y - Radiator

Info

Publication number: CN2826513Y
Application number: CN 200520127479
Authority: CN
Inventors: 林书如; 刘立泰
Original assignee: Inventec Corp
Current assignee: Inventec Corp
Priority date: 2005-10-14
Filing date: 2005-10-14
Publication date: 2006-10-11
Anticipated expiration: 2015-10-14

Abstract

The utility model relates to a radiator, which comprises a base, a heat radiation fin sheet and a fixing part, wherein the two sides of the base are provided with cutting grooves to form a deformable part. The radiator of the utility model can lengthen the deformable distance of the base, thereby, heat stress can be effectively reduced. The radiator of the utility model solves the problems that heat stress is damaged, a welding part is cracked, a main plate is deformed, etc. and realizes the purposes of heat stress effective reduction and reliability increase of products.

Description

Heating radiator

Technical field

The utility model is about a kind of heating radiator, particularly the heating radiator that dispels the heat about a kind of heat that heat source generator (Heat Generating Device) is produced.

Background technology

The arithmetic speed of the computer system of Shi Yonging is more and more fast now; operand is also more and more big; therefore; when this computing machine is in the full load running status; inside is central processing unit (CPU for example; Central Processing Unit), microprocessor (Microprocessor) or chipset (Chipset) etc. can produce the heat source generator (Heat Generating Device) of a large amount of thermals source, its surface temperature is higher than 100 through regular meeting.For handling this problems of excessive heat, general solution is to install for example heat abstractor of heating radiator (Heat Sink) and fan etc. in main frame, the heat that is produced from heat source generators such as central processing unit, microprocessor or chipset for example by this heat abstractor loss.

Heat source generator with chipset is an example, as the chipset of one of computer-internal core hinge is to be responsible for coordinating the data transmission between each main chip and peripheral I/O (I/O) external equipment on the mainboard, normally utilize heating radiator closely to contact and locate, in the hope of effectively dispelling the heat with chipset.Existing heating radiator is promptly as Fig. 4 and shown in Figure 5.

As shown in Figure 4, generally be the fixed part 20 that for example iron or aluminium alloy system are set respectively in base 10 both sides such as the heating radiator of aluminum.Then, again as shown in Figure 5, make the heat source generator 30 of these base 10 contact such as chipsets, found this base 10 in these heat source generator 30 tops by these fixed part 20 supports, and for example utilize tin ball (not marking) to form weld part 40 at normal temperatures in mode such as welding, this fixed part 20 is fixed to mainboard 50.

Often make surface temperature be higher than 100 owing to can produce a large amount of thermals source when the computer run such as the heat source generator of chipset, during with this prior art fixed heat sink and heat source generator, can be because various material coefficient of thermal expansion coefficients (the Coefficient ofThermal Expansion that heating radiator uses, CTE) difference causes thermal stress damage, cause this weld part 40 that fracture takes place or make problem such as this mainboard 50 distortion, have a strong impact on reliability of products.

Therefore, how to develop a kind of heating radiator that can effectively reduce thermal stress, solve the fracture of above-mentioned prior art generation weld part or make shortcoming such as this mainboard distortion, the real problem of demanding urgently inquiring into for present industry.

The utility model content

For overcoming the shortcoming of above-mentioned prior art, fundamental purpose of the present utility model is to provide a kind of heating radiator that can effectively reduce thermal stress.

Another purpose of the present utility model is to provide a kind of heating radiator that improves product reliability.

For reaching above-mentioned purpose and other purpose, the utility model provides a kind of heating radiator, and this heating radiator comprises base, radiating fin and fixed part, and these base both sides are to be provided with grooving to form deformable part.

This grooving is to select rectangularly, and this fixed part is located at the corner of this base, and two these fixed parts preferably are set.This fixed part is to be positioned on this deformable part, and this deformable part can be for example rectangular block, and two these deformable part preferably are set.This heating radiator also is provided with for example contact jaw, contact with heat source generator such as chipset, and the shape of this contact jaw is the rectangle that for example can be should heat source generator.In addition, this heating radiator also can select to be provided with weld part.

Compared with prior art, the utility model is by being provided with the base of deformable part, make the deformable distance of this base elongated, can effectively reduce the influence of thermal stress, avoid prior art because the various material coefficient of thermal expansion coefficient differences that heating radiator uses cause thermal stress damage, can not cause this welded heat radiator portion to take place to rupture or make the problems such as mainboard distortion that this heat source generator is set.And design of the present utility model can effectively reduce thermal stress, has solved prior art because of the shortcoming that weld part fracture takes place or makes the mainboard distortion be caused, and can improve reliability of products.

Hence one can see that, and heating radiator of the present utility model has solved prior art and can't avoid thermal stress damage, weld part that problems such as fracture and mainboard distortion take place, and realizes the purpose that effectively reduces thermal stress and improve product reliability.

Description of drawings

Fig. 1 is the structural representation of this heating radiator embodiment;

Fig. 2 is the user mode synoptic diagram of this heating radiator embodiment, and shows heating radiator user mode at normal temperatures among Fig. 2;

Fig. 3 is this heating radiator embodiment user mode synoptic diagram, and is to show heating radiator user mode at high temperature among Fig. 3;

Fig. 4 is the structural representation of existing heating radiator; And

Fig. 5 is the user mode synoptic diagram of existing heating radiator, and is to show heating radiator user mode at normal temperatures among Fig. 5.

Embodiment

Fig. 1 to Fig. 3 is the accompanying drawing of drawing according to the utility model embodiment.It should be noted, heating radiator of the present utility model is to be fitted in a heat source generator (Heat Generating Device), following examples are that the heat source generator of chipset is the example explanation for example to be applied in, but be not as limit, can be applicable to yet such as central processing unit, microprocessor or other heat source generator.

Simultaneously, because existing chipset, central processing unit, microprocessor or other heat source generator all can be applicable objects, its structure does not change, so for simplicity, and make feature of the present utility model and structure more clear understandable, only demonstrate the structure with the utility model direct correlation in the accompanying drawings, all the other partly then slightly remove, and part same as the prior art is then represented it with identical element numbers.And the utility model is not limited to be applied to the heat source generator described in following examples.

As shown in Figure 1, the heating radiator 1 of present embodiment comprises base 11, radiating fin 13 and fixed part 15, and wherein, these base 11 both sides are provided with grooving 111, forms deformable part 17.

In the present embodiment, this base 11 is heat source generators (do not mark in Fig. 1, hold the back statement) of corresponding contact such as chipset, and is heat conduction block in the form of a substantially rectangular, and can be the block of aluminum for example.111 of the groovings of these base 11 both sides are also for example rectangular, and to make the length of this grooving 111 for example be h.Also be provided with a contact jaw 113 at these base 11 substantial middle places, this contact jaw 113 is the heat source generators that are used to contact such as chipset, and also can be for example rectangular.

It should be noted, this base 11, this grooving 111 are not to exceed with described in the present embodiment with the shape of this contact jaw 113, for example this grooving 111 can be Else Rule or irregular shape, has in the affiliated technical field to know that usually the knowledgeable can be according to the correct that needs of actual enforcement.Simultaneously, under have in the technical field and know that usually the knowledgeable should know that the length h of the grooving 111 in the present embodiment is also non-and exceed with the length shown in Fig. 1, make the deformable distance of this base 11 elongated as long as can form this deformable part 17, shown in Fig. 1 is illustrative only, but not is used to limit the utility model.

This radiating fin 13 is in the form of sheets, and is spaced the wherein surface in this base 11, the quick loss of heat that will produce such as the heat source generator base 11 of chipset, and can be the lamellar body of aluminum for example.Will be appreciated that, though be to be that example explains in the present embodiment with sheet and spaced radiating fin 13, but in other embodiments, the shape of this radiating fin 13, quantity is set and arrangement architecture can be changed, be not to exceed with described in the present embodiment, and since this variation have in the technical field under being know usually that the knowledgeable is easy to think and, so at this no longer for giving unnecessary details.Simultaneously, this base 11 all can be for example non-aluminum with this radiating fin 13, but not exceeds with described in the present embodiment.

This fixed part 15 can stand in these base 11 supports this heat source generator top such as chipset, and be fixed on the mainboard that is provided with this heat source generator and (in Fig. 1, do not mark, hold the back statement), and be provided in a side of this base 11 two corners wherein, but should know this fixed part 15 the position is set and quantity is set not limited thereto.Simultaneously, in the present embodiment, this fixed part 15 can be the cylinder of for example iron or aluminium alloy system, strengthening constant intensity, but should know that the material of this fixed part 15 and shape are also non-as limit.

17 of this deformable part are provided in a side of two sides of this base 11, and are block in the form of a substantially rectangular, and this fixed part 15 is to be positioned on this deformable part 17.Though this deformable part 17 is blocks in the form of a substantially rectangular in the present embodiment, has in the affiliated technical field and know that usually the knowledgeable knows that all the shape that can revise this grooving 111 changes the shape of this deformable part 17; Just the shape of this deformable part 17 is to change with the shape of this grooving 111, but not exceeds with described in the present embodiment.

As shown in Figure 2, can for example utilize tin ball (not marking) to form weld part 19 at normal temperatures in mode such as welding, this fixed part 15 is fixed to mainboard 50, make these base 11 correspondences touch heat source generator 30, the effective loss of heat that this heat source generator 30 is produced when the operation by this heating radiator 1 such as chipset.

At this moment, as shown in the figure, the height distance that the base 11 in this heating radiator 1 right side and left side and this mainboard are 50 is a.

As shown in Figure 3, when operation, a large amount of thermals source of heat source generator 30 meeting generations such as chipset make surface temperature raise; At this moment, as shown in Figure 3, for example base 11 sides on this heating radiator 1 right side are out of shape and the height distance of rising b, promptly the height distance of 50 of the base 11 on this heating radiator 1 right side and this mainboards is a+b, base 11 sides in this heating radiator 1 left side are out of shape and the height distance of reduction c, promptly the height distance of 50 of the base 11 in this heating radiator 1 left side and this mainboards is a-c, and b is greater than c.Simultaneously, this base 11 is still corresponding this heat source generator 30 of contact, and this weld part 19 does not all have change with this mainboard 50.

As from the foregoing, because these base 11 both sides are to be provided with grooving 111 to form deformable part 17, the design of this deformable part 17 is for the deformable length that increases this base 11, even the deformable height distance that this base 11 and this mainboard are 50 is elongated, even various material coefficient of thermal expansion coefficients (the Coefficient of Thermal Expansion that this heating radiator 1 uses, CTE) difference can not cause thermal stress damage yet.

Therefore, compared with prior art, design of the present utility model can increase foot of radiator Deformable length effectively reduces the impact of thermal stress whereby, and protection weld part and mainboard possess Good product reliability. Using radiator of the present utility model can solve prior art and not establish Count any distressed structure, when high temperature operates, can't solve thermal stress damage that thermal expansion causes etc. Shortcoming, and relatively can improve the reliability of product.

Claims

1. a heating radiator is characterized in that, this heating radiator comprises base, radiating fin and fixed part, and these base both sides are to be provided with grooving to form deformable part.

2. heating radiator as claimed in claim 1 is characterized in that this grooving is rectangular.

3. heating radiator as claimed in claim 1 is characterized in that this fixed part is located at the corner of this base.

4. heating radiator as claimed in claim 1 is characterized in that, this heating radiator is provided with two these fixed parts.

5. heating radiator as claimed in claim 1 is characterized in that, this fixed part is to be positioned on this deformable part.

6. heating radiator as claimed in claim 1 is characterized in that, this deformable part is the rectangle block.

7. heating radiator as claimed in claim 1 is characterized in that, this heating radiator is provided with two these deformable part.

8. heating radiator as claimed in claim 1 is characterized in that this heating radiator also is provided with contact jaw.

9. heating radiator as claimed in claim 8 is characterized in that this contact jaw is rectangular.

10. heating radiator as claimed in claim 1 is characterized in that this heating radiator also is provided with weld part.