CN101394727B

CN101394727B - Heat Radiation device

Info

Publication number: CN101394727B
Application number: CN 200710077335
Authority: CN
Inventors: 陈俊吉; 利民; 杨红成
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: 2007-09-21
Filing date: 2007-09-21
Publication date: 2011-12-21
Anticipated expiration: 2027-09-21
Also published as: CN101394727A

Abstract

A radiating device is used for the radiation of heating electronic elements on a circuit board. The radiating device comprises a radiator and a buckling wire. The radiator comprises a bottom panel and a plurality of radiating fins formed on a base; an accommodating groove is formed on the radiator and runs through the radiating fins; the accommodating groove is obliquely formed on the two opposite sides of the bottom panel; the buckling wire comprises a main body accommodated in the accommodating groove and two buckling arms which are extended from both sides of the main body in opposite directions from both ends of the main body; the buckling arms are respectively positioned on both sides of the bottom panel; and the tail ends thereof are buckled with the circuit board. The buckling wire can be formed by bending an elastic metal wire. The buckling wire has the advantages of simple manufacture, low cost and simple use and operation. When the buckling wire is operated, the buckling wire is disposed in the accommodating groove of the radiator and then the two buckling arms at both ends of the buckling wire are rotated to be buckled on the circuit board, without the need of assistance of related auxiliary tools.

Description

Heat abstractor

Technical field

The present invention relates to a kind of heat abstractor, particularly a kind of heat abstractor that is used to electronic component to dispel the heat.

Background technology

When moving, can produce a large amount of heats such as computer cpu, north bridge chips, the contour power electronic element of video card,, will directly cause temperature sharply to rise, and badly influence the normal operation of electronic component if these heats can not be left effectively.For this reason, need heat abstractor to come these electronic components are dispelled the heat, traditional heat abstractor generally includes radiator and radiator is fixed to fastener on the electronic component.

Above-mentioned heat abstractor after elder generation is attached to radiator on the electronic component end face, utilizes the hook between fastener and associated component or structure (for example hole on the circuit board) again and is tight against radiator, and radiator is closely adhered on the electronic component in use.Referring to United States Patent (USP) the 5th, 640,305 and 5,428, No. 897 etc., this two patent all discloses a fastener, wherein, this fastener is formed by metallic rod body bending, and this metallic rod body is to be positioned on the radiator by a clamping action that is fastened on the shell fragment in the radiator in addition.In this design, the arm that this metallic rod body has a horizontal pressure section and roughly oppositely vertical respectively bending is extended from these pressure section two ends, the end of each arm extends a fastener portion, by fastener portion and associated component or interstructural hook, just radiator is closely adhered on the electronic component end face; The cross section of this shell fragment is roughly V-shaped, and its bending zone clamps the pressure section of metallic rod body, and two terminal edge then are fastened on the radiating fin of radiator.But, this design commonly used needs to clamp earlier by a shell fragment in addition the pressure section of metallic rod body, and then this shell fragment and metallic rod body blocking together be positioned in the radiator, therefore operation is gone up complicated, inconvenient and is needed the described shell fragment of independent moulding, and cost is higher.

Summary of the invention

In view of this, be necessary to provide a kind of simple in structure, easy accessibility and lower-cost heat abstractor.

A kind of heat abstractor, in order to the heat-generating electronic elements on the circuit board is dispelled the heat, it comprises a radiator and a button line, described radiator comprises a base plate and is formed at some radiating fins on the pedestal, offer a storage tank that runs through described radiating fin on the described radiator, described storage tank favours the relative dual-side of described base plate, described button line comprises the main body that is contained in the described storage tank and from these main body two ends and respectively two buckles arm to what oppositely extended described main body both sides, described button arm lays respectively at described base plate both sides, and its terminal and circuit board fastening.

Above-mentioned button line can be formed by the elastic metal wire bending, and its manufacturing is simple and cost is low; And use that should the button line is simple to operate, and it is auxiliary to need not related tool, only needs button line is positioned in this radiator storage tank, and the priority arm of buckleing that rotates these button line two ends fastens on the circuit board and gets final product again.

The invention will be further described below in conjunction with the drawings and specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional combination figure of heat abstractor in one embodiment of the present invention.

Fig. 2 is the three-dimensional exploded view of heat abstractor shown in Figure 1.

Fig. 3 is the end view of heat abstractor shown in Figure 2.

Heat abstractor vertical view shown in Fig. 4 Fig. 2.

Embodiment

Fig. 1 to Fig. 2 discloses the heat abstractor in one embodiment of the present invention, it is used to distribute the heat of electronic component (figure does not show) release that is installed on the circuit board (figure does not show), and this heat abstractor comprises a radiator 10 and is used for radiator 10 is fixed to the fastener combination 20 of fitting with electronic component on the circuit board.

Above-mentioned radiator 10 is integrally formed by highly heat-conductive materials such as aluminium, copper, and it comprises a roughly rectangular base plate 12 and the some radiating fins 14 that extend vertically upward from base plate 12.These radiating fin 14 spaces and be parallel to an opposite side of base plate 12, it is respectively offering two at interval grooves 140 near this dual-side position.These grooves 140 near both sides, perpendicular to radiating fin 14, will cut into the cylinder of essentially rectangular near the radiating fin 14 of both sides respectively.The centre position of these radiating fins 14 offers a storage tank 142 that tilts to run through these radiating fins 14, this storage tank 142 between these grooves 140 and with 140 one-tenth one small angle inclination of these grooves, this storage tank 142 is used for cooperating with this fastener combination 20.

Above-mentioned fastener combination 20 comprises a button line 21 and is fixed in the operating parts 23 that this buckles line 21 1 sides.This button line 21 can be formed by the elastic metal wire bending, the two button arms 212 that it comprises a main body 210 and is connected in these main body 210 two ends.This main body 210 is contained in the storage tank 142 of this radiator 10, two pressure sections 2104 that it comprises a limited section 2102 and lays respectively at these 2102 two ends, limited section.This limited section 2102 is from these main body 210 center protrusion and be parallel to this two pressure section 2104, is used to limit this main body 210 so that whole button line 21 rotates in these radiator 10 storage tanks 142.Reverse and the extension that is inclined upwardly to both sides respectively of this two buttons arm 212 from these main body 210 two ends, this two buttons arm 212 all favours the plane at these main body 210 places, and in the time of in this main body 210 is placed in these radiator 10 storage tanks 142, this two buttons arm 212 all is parallel to the radiating fin 14 of this radiator 10.The end of this two buttons arm 212 is formed with a clasp 2120 respectively, this clasp 2120 is to bend bending downwards by these button arm 212 ends inwardly to extend upward and form, and it is used for this circuit board or is fixed on clasp (figure does not show) on this circuit board fastening and this radiator 10 being fixed to this circuit board.

Aforesaid operations spare 23 is integrally formed by plastic material, and it comprises a top board 230 and two side plates 232 that extend vertically downward from these top board 230 adjacent both sides of the edge.This biside plate 232 corner between them forms a breach, and its madial wall forms and respectively forms parallel these top board 230 1 catching grooves 2320.

When above-mentioned fastener combination 20 is in assembled state, the pressure section 2104 of this button line 21 closely is contained in respectively in the catching groove 2320 of these operating parts 23 side plates 232 near an end of buckleing arm 212 and this end of buckleing arm 212 close these pressure sections 2104, thereby this operating parts 23 is fixed on this button line 21.

As shown in Figure 3 and Figure 4, above-mentioned heat abstractor in use, this radiator 10 is placed on the circuit board, its base plate 12 contacts with electronic component; This fastener combination 20 is placed on this radiator 10, and its button line 21 main bodys 210 are placed in these radiator 10 storage tanks 142, and the pressure section 2104 of this main body 210 is pressed on these radiator 10 storage tanks 142 bottom surfaces; The arm 212 of buckleing that these button line 21 1 ends are not fixed with operating parts 23 is rotated down this clasp 2120 of buckleing arm 212 ends is anchored on the circuit board, press down the clasp 2120 that will detain arm 212 ends after this operating parts 23 is rotated down another button arm 212 again and be anchored on the circuit board, radiator 10 just has been fixed on the circuit board like this.

Because the arm 212 of buckleing at these button line 21 two ends all is rotated down back fixing, make whole button line 21 be in twisted state, two pressure sections 2104 of this button line 21 compress the bottom surface of radiator 10 storage tanks 142 downwards under elastic deformation, thereby this radiator 10 are kept down be close on the electronic component on the circuit board.

This shows that above-mentioned button line 21 can be formed by the elastic metal wire bending, its manufacturing is simple and cost is low; And use that should button line 21 is simple to operate, and it is auxiliary to need not related tool, only needs button line 21 is positioned in these radiator 10 storage tanks 142, and the priority arm 212 of buckleing that rotates these button line 21 two ends fastens on the circuit board and gets final product again.In addition, storage tank 142 relative radiators 10 both sides of this radiator 10 are obliquely installed, and can play the effect that prevents that this radiator 10 from moving along these button line 21 directions like this.

Claims

1. heat abstractor, in order to the heat-generating electronic elements on the circuit board is dispelled the heat, it comprises a radiator and a button line, described radiator comprises a base plate and is formed at some radiating fins on the base plate, described radiating fin space also is parallel to the relative dual-side of described base plate, it is characterized in that: offer a storage tank that runs through described radiating fin on the described radiator, described storage tank favours this relative dual-side of described base plate, described button line comprises the main body that is contained in the described storage tank and from these main body two ends and respectively two buckles arm to what oppositely extended described main body both sides, described button arm lays respectively at this relative dual-side of described base plate, and its terminal and circuit board fastening.

2. heat abstractor as claimed in claim 1 is characterized in that: described button arm tilts to extend upward and be parallel to this relative dual-side of described base plate of radiator.

3. heat abstractor as claimed in claim 1 is characterized in that: described button arm end is formed with clasp, and described clasp is rotated down when distortion and described circuit board or is fixed on clasp fastening on the circuit board at described button arm.

4. heat abstractor as claimed in claim 1 is characterized in that: described button arm is parallel to described radiator fins.

5. heat abstractor as claimed in claim 1 is characterized in that: described radiating fin offers the groove that vertically runs through described radiating fin at its place, nearly two ends.

6. heat abstractor as claimed in claim 1 is characterized in that: described main body comprises that one limits the limited section of described button line rotation and is positioned at two pressure sections that the two ends, limited section also compress described radiator downwards.

7. heat abstractor as claimed in claim 6 is characterized in that: described limited section is from described main body middle part projection and be placed in the described main body rotation of restriction in the described storage tank, and described pressure section is pressed on the described storage tank bottom surface.

8. heat abstractor as claimed in claim 1 is characterized in that: also comprise an operating parts, described operating parts be fixed on a described button arm and described button arm and described main body junction near.

9. heat abstractor as claimed in claim 8, it is characterized in that: described operating parts comprises a top board and two sidewalls that extend vertically downward from the adjacent dual-side of described top board, and described inside sidewalls is formed with the catching groove with described button arm and the close described button arm place of described main body snapping.