CN2840616Y

CN2840616Y - Heat sink device

Info

Publication number: CN2840616Y
Application number: CN 200520121765
Authority: CN
Inventors: 张�杰
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2005-09-21
Filing date: 2005-09-21
Publication date: 2006-11-22
Anticipated expiration: 2015-09-21

Abstract

A heat dissipating double-fuselage, it includes a heat sink and a buckle, the heat sink includes a base and several heat-dissipating fins extending upwards from the base; the middle part of the buckle is provided with two parallel extending pressing parts, two ends of each pressing part are respectively inclined and upwards extended with an elastic arm, the other ends of every two opposite elastic arms are jointly bent downwards to extend with a buckling part, the buckling part is provided with three buckling holes and a buckling lug, the buckling part is bent above the buckling lug and provided with a protective sheet, and the middle part of the protective sheet is provided with an operation hole, so that a screwdriver can penetrate through the operation hole to press the buckling lug to assemble and disassemble the buckle, and the screwdriver is prevented from slipping to damage a circuit board below the radiator. The heat dissipation device has the advantages of safety and convenience in assembly and disassembly.

Description

Heat abstractor

Technical field

The utility model relates to a kind of heat abstractor, relates in particular to a kind of heat abstractor of installing and removing safe ready.

Background technology

Electronic component on the general electronic device host plate now in working order down all can the evolution of heat, normally stably works in order to guarantee these electronic components, need install a heat abstractor additional on these electronic components usually and dispel the heat.

Existing heat abstractor is shown in No. the 502822nd, Taiwan patent; the button portion of the clamping element of this heat abstractor is provided with button hole; and above button hole, be provided with a compressing tablet that outwards tiltedly sticks up; the clamping element of this structure is to adopt a screwdriver to be pressed on the compressing tablet to dismantle when dismounting; but owing to be not provided with any protection structure near this compressing tablet, the circuit board when dismounting below the easy slippage damage of the screwdriver radiator.

And the geometrical clamp shown in No. 590,242 first figure of Taiwan patent; thereby this geometrical clamp respectively is provided with a fin in the both sides of compressing tablet and surrounds an application of force space; this protection structure can avoid when dismounting screwdriver to the slippage of the left and right sides of compressing tablet; yet when firmly exerting pressure dismounting; the clip of this geometrical clamp can move downward and deform; if the top careless slightly, that screwdriver still might outwards move and cross compressing tablet, collision causes its damage on circuit board.

Summary of the invention

Main purpose of the present utility model is to provide a kind of heat abstractor of installing and removing safe ready.

For achieving the above object, the utility model provides a kind of heat abstractor, and it comprises a radiator and a fastener, and this radiator comprises that a pedestal reaches from the upwardly extending some radiating fins of this pedestal; The middle part of this fastener is provided with two pressure sections that extend in parallel; each tilts to extend upward an elastic arm two ends of each pressure section; a clamping part is extended in the common bending downwards of the other end of per two relative elastic arms; this clamping part is provided with three button holes and a buckle ear; this clamping part bends above this buckle ear and is provided with a screening glass; the middle part of this screening glass offers a handle hole; fastener is installed and removed by being pressed on the buckle ear thereby can use a screwdriver to pass handle hole, prevented that the screwdriver slippage from damaging the circuit board of radiator below.

The utlity model has following beneficial effect: heat abstractor of the present utility model is when installing and removing operation; screwdriver is to be located in the handle hole of this fastener buckle ear is exerted pressure; because this screening glass and buckle ear form a tight guard space that surrounds; so screwdriver can slippage when the application of force damage the circuit board below the radiator, mounting or dismounting safe ready.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model heat abstractor.

Fig. 2 is the stereogram of fastener of the present utility model.

Fig. 3 is the three-dimensional combination figure of the utility model heat abstractor.

Embodiment

See also Fig. 1 and Fig. 3, a kind of heat abstractor, it comprises a firm banking 1, a radiator 3 and a fastener 5, this heat abstractor is used to an electronic component 92 heat radiations on the circuit board 9.

This firm banking 1 can be attached to the top of this electronic component 92, and its middle part offers the opening 12 of a rectangle, and each is provided with three grabs 14 side by side its relative two ends.

This radiator 3 comprises that a pedestal 32 reaches from these pedestal 32 upwardly extending some radiating fins 34.Offer three grooves 36 on these radiating fins 34.This radiator 3 is installed in the top of this firm banking 1, and its pedestal 32 protrudes out a convex jointing part (scheming not shown) downwards, and this convex jointing part passes the opening 12 of this firm banking 1, and the over top of amplexiforming at this heat-generating electronic elements 92 is its heat radiation.

This fastener 5 is formed by sheet metal integrated punching bending, its middle part is provided with two pressure sections that extend in parallel 52, be connected with two positioning ribs 54 between this two pressure section 52 respectively, this two positioning rib 54 and two pressure sections 52 surround and form a location notch 55, thereby this location notch 55 is set in and stops this fastener 5 relative radiators 3 generation slippages on some radiating fins 34.Each tilts to extend upward an elastic arm 56 two ends of each pressure section 52.A clamping part 58 is extended in the common bending downwards of the other end of wherein per two relative elastic arms 56.On this clamping part 58 three grabs 14 that should firm banking 1 are offered three button holes 60.A buckle ear 62 is extended in the vertical outwards bending of upper limb from middle button hole 60 on this clamping part 58.The upper limb of this clamping part 58 extends a screening glass 64 towards these buckle ear 62 bendings, and the middle part of this screening glass 64 offers a handle hole 66.

During installation; three button hole 60 correspondences with fastener 5 one ends are buckled on three grabs 14 of these firm banking 1 one ends earlier; make in the pressure section 52 of this fastener 5 and the groove 36 that elastic arm 56 is housed in radiator 3; making the handle hole 66 that instrument (figure do not show) passes fastener 5 other end clamping parts 58 with a screwdriver then acts on the buckle ear 62; the outside application of force is replaced screening glass 64 when the application of force presses down buckle ear 62; make three button holes 60 of these fastener 5 other ends move downward three grabs 14 crossing this firm banking 1 other end; this fastener 5 clamping parts 58 inside elastic recoverys then; three button holes 60 of the other end can be buckled on the grab 14 of firm banking 1, thereby the pressure section 52 of this fastener 5 is pressed on radiator 3 tops this radiator 3 are fixed on this firm banking 1.And with fastener 5 when firm banking 1 disassembles, only need operate with screwdriver in accordance with the law, the grab 14 that makes the button hole 60 of fastener 5 deviate from firm banking 1 gets final product.

The utility model heat abstractor is when installing and removing operation; screwdriver is to be located in the handle hole 66 of this fastener 5 buckle ear 62 is exerted pressure; because this screening glass 64 forms a tight guard space that surrounds with buckle ear 62; so screwdriver can slippage when the application of force damage the circuit board 9 below the radiator 3, mounting or dismounting safe ready.

Claims

1, a kind of heat abstractor, it comprises a radiator and a fastener, this radiator comprises that a pedestal reaches from the upwardly extending some radiating fins of this pedestal; The middle part of this fastener is provided with two pressure sections that extend in parallel; each tilts to extend upward an elastic arm two ends of each pressure section; a clamping part is extended in the common bending downwards of the other end of per two relative elastic arms; this clamping part is provided with some button holes and a buckle ear; it is characterized in that: this clamping part bends above this buckle ear and is provided with a screening glass; the middle part of this screening glass offers a handle hole; fastener is installed and removed by being pressed on the buckle ear thereby can use an operation tool to pass handle hole, prevented that the operation tool slippage from causing unsuitable damage.

2, heat abstractor according to claim 1 is characterized in that: this clamping part is provided with three button holes, and this buckle ear is that the upper limb from the button hole of centre outwards bends to extend and forms.

3, heat abstractor according to claim 1 is characterized in that: this screening glass is to extend towards this buckle ear bending from the upper limb of this clamping part to form.

4, heat abstractor according to claim 1, it is characterized in that: be connected with two positioning ribs between this two pressure section respectively, this two positioning rib and two pressure sections surround and form a location notch, thereby this location notch is set in and stops the relative radiator generation of this fastener slippage on some radiating fins.

5, heat abstractor according to claim 1 is characterized in that: this fastener is that the integrated punching bending forms, and two pressure sections of this fastener are the tops that is pressed on this radiator.

6, heat abstractor according to claim 1 is characterized in that: this heat abstractor also comprises a firm banking, and the opposite end correspondence of this firm banking is provided with several grabs.

7, heat abstractor according to claim 6, it is characterized in that: this radiator is installed in this firm banking top, the button hole of this fastener is that correspondence is connected on the grab of this firm banking, thereby its pressure section is then replaced and on the radiator this radiator is being fixed on the firm banking.

8, heat abstractor according to claim 7 is characterized in that: this firm banking middle part offers an opening, and the pedestal of this radiator can pass this opening and closely amplexiform mutually with the end face of an electronic component.

9, heat abstractor according to claim 1 is characterized in that: offer several grooves on the radiating fin of this radiator, the pressure section of this fastener and elastic arm are to be housed in the groove of this radiator.

10, heat abstractor according to claim 1 is characterized in that: this operation tool is a screwdriver.