CN2824514Y

CN2824514Y - Heat sink assembly

Info

Publication number: CN2824514Y
Application number: CN 200520017079
Authority: CN
Inventors: 胡军良
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2005-04-25
Filing date: 2005-04-25
Publication date: 2006-10-04
Anticipated expiration: 2015-04-25

Abstract

A heat sink assembly includes a heat sink and two fastening devices; the two fastening devices are used for fastening the heat sink to a circuit board, wherein the first fastening device comprises a first fastening member and a second fastening member. The first fastener is provided with a top plate, the top plate is provided with an opening, one end of the opening extends downwards to form a barb, two sides of the top plate are bent downwards to form a side plate, one ends of the two side plates are fixed on the radiator, and the other ends of the two side plates are respectively provided with a sliding chute; the second fastener is arranged in the containing space formed by the two side plates and the top plate of the first fastener in a sliding mode, one end of the second fastener is provided with a hook, the other end of the second fastener is provided with a hook, the middle of the second fastener is provided with a sliding block towards the two sides of the second fastener in a protruding mode, the two sliding blocks can be correspondingly arranged in the two sliding grooves of the first fastener in a sliding mode, when the hook is locked on the circuit board, the hook is matched with the barb, and the second fastener is prevented from sliding relative to the first fastener to be unlocked.

Description

The heat abstractor combination

Technical field

The utility model relates to a kind of heat abstractor combination, refers to a kind of compact conformation especially, and locking is is firmly installed and removed conveniently, is fit to be applied in the heat abstractor combination on the communicating circuit plate.

Background technology

At present, the power of the electronic component on the communicating circuit plate is increasing, the heat that sends is more and more, therefore these electronic components need that also radiator is installed and come distribute heat, and the communication cabinet that is subject to standard universal is (as the 1u server, it highly has only 4.45 centimetres) the inner space less, so the radiator of its use has higher requirements dimensionally, its volume is generally less.

As No. 90206018 described buckling device of TaiWan, China patent application, it is to be formed by the rectangular integrated punching of a metal, the middle part clinching of this buckling device is on radiator, the one end is provided with button hole, this button hole is hooked on the clasp of a connector, its other end is provided with a connecting portion, the both sides of this connecting portion are provided with two pin-jointing pieces, offer the chute of an arch on each pin-jointing piece, these connecting portion bottom central authorities extend upward one first press section, the top of this first press section is bent to form one second press section downwards, the middle part of this second press section protrudes out two drive-connecting shafts, be fastened on respectively in two chutes, the end of this second press section is provided with a button hole, this button hole is hooked on another clasp of connector, during installing/dismounting, driving drive-connecting shaft by the operation press section slides in draw-in groove, can drive button hole enters or breaks away from clasp, this buckling device mounting or dismounting are comparatively convenient, but to cooperate with a connector that adds in addition, and its upwardly extending two press sections have also further increased the whole height of buckling device, are not suitable for being applied on the comparatively compact communicating circuit plate of volume.

No. 88202201 described cooling integrated fastening structure of TaiWan, China patent application for another example, these fin both sides respectively are provided with a device for fastening, this device for fastening comprises a pressing part, one end of this pressing part is provided with the fixed part of an anchor shape, the other end of this pressing part is provided with a fixed leg, this fixed leg end is provided with the circular arc termination, this fixed part is connected between the fin of radiator during assembling, and the circular arc termination of fixed leg is plugged on the circuit board in the corresponding jack, thereby radiator is installed on the circuit board.The anchor shape fixed part of this device for fastening is easier to come off under the lower situation of radiating fin height, and this device for fastening adopts the circular arc termination to be combined in the jack of circuit board on the other hand, and this combination also is unfavorable for dismounting.

Summary of the invention

The purpose of this utility model is to provide a kind of heat abstractor combination, especially a kind of compact conformation, and locking is is firmly installed and removed conveniently, is fit to be applied in the heat abstractor combination on the communicating circuit plate.

For achieving the above object, the utility model provides a kind of heat abstractor combination, comprises a radiator and two device for fastening; This radiator comprises a pedestal and some radiating fins; This two device for fastening is to be used for this radiator is locked to a circuit board, and one of them first device for fastening comprises one first fastener and one second fastener.This first fastener is provided with a top board, the middle part of this top board offers an opening, and an end of this opening extension downwards is provided with a stop section, and each bends out side plate downwards the both sides of this top board, one end of this biside plate is fixed on the radiator, and respectively offers a chute at its other end; This second fastener is to be slidingly installed with at this first fastener to be surrounded in the accommodation space that forms by biside plate and top board, one end of this second fastener is provided with a locking part, its other end is provided with a location division, each prominent sets out a slide block to its both sides at the middle part of this second fastener, this two slide block can corresponding be slidingly installed with in two chutes of first fastener, wherein when the locking part of this first device for fastening locks on the circuit board, the location division of this second fastener is to match with the stop section of this first fastener, stops relative first fastener of second fastener to take place to slide and removes locking.

The utlity model has following beneficial effect: second fastener of this first device for fastening is to be slidingly installed with at this first fastener to be surrounded in the accommodation space that forms by biside plate and top board, its compact conformation, and whole height is less, is fit to be applied on the communicating circuit plate; And when dismounting, only need to pull second fastener by a screwdriver, make clasp deviate from circuit board and get final product, simple to operation.

Description of drawings

Fig. 1 is the three-dimensional exploded view of combination of the utility model heat abstractor and circuit board.

Fig. 2 is the three-dimensional combination figure of combination of the utility model heat abstractor and circuit board.

Fig. 3 is the three-dimensional exploded view of first device for fastening of the utility model heat abstractor combination.

Fig. 4 is the three-dimensional combination figure of first device for fastening of the utility model heat abstractor combination.

Embodiment

See also Fig. 1 to Fig. 4, a kind of heat abstractor combination comprises a radiator 1 and two device for fastening 3,6.

This radiator 1 comprises a pedestal 12 and some by this pedestal 12 upwards projection and the radiating fin 14 that goes out, and the two ends of this radiator 1 pedestal 12 offer two screws (not label) respectively.

This two device for fastening the 3, the 6th is used for this radiator 1 is locked to a circuit board 7, and this circuit board 7 is provided with a heat-generating electronic elements 72, respectively is provided with a snap groove 74 on the relative both side edges of this circuit board 7.

This first device for fastening 3 is ends that are installed in this radiator 1, and it comprises one first fastener 32 and one second fastener 34.

This first fastener 32 is that the one bending forms, and which is provided with a top board 36, and these top board 36 middle parts are provided with an opening 37, and this opening 37 extends a barb 38 near the end bending downwards of radiator 1.Each bends out side plate 40 downward vertically the both sides of this top board 36, and this biside plate 40 extends a fixed part 42 near each level bending of lower edge of an end of radiator 1, respectively is provided with a through hole 44 on this fixed part 42.Respectively be equiped with a bolt 45 that combines with screw on the radiator 1 in this two through hole 44, thereby this first fastener 32 is fixed on the radiator 1.This biside plate 40 respectively offers a chute 46 at its other end away from radiator 1, and also each bends out one to ending plate 48 perpendicular to side plate 40 to the other end of this biside plate 40.

This second fastener 34 also is that the one bending forms, it can be attached to this first fastener 32 and be surrounded in the accommodation space that forms by biside plate 40 and top board 36, one end of this second fastener 34 is provided with a clasp 50, the crotch 52 of the then corresponding warpage that makes progress that is provided with a start groove 51 and matches with this barb 38 of its other end.The middle part of this second fastener 34 is to each prominent slide block 54 that sets out of its both sides, and this two slide block 54 can corresponding be slidingly installed with in two chutes 46 of first fastener 32.

This second device for fastening 6 is the other ends that are installed in this radiator 1, and the one end is provided with an installing department 62, and its other end also is provided with a clasp 66 in order to combine with circuit board 7.This installing department 62 is provided with two through hole 64, respectively is equiped with a bolt 45 that combines with screw on the radiator 1 in this two through hole 64, thereby this second device for fastening 6 is fixed on the radiator 1.

When mounted, be fixed on the circuit board 7 with the end of this second device for fastening 6 earlier radiator 1.And when adopting this first device for fastening 3 to lock to radiator 1 on the circuit board 7, making supporting of this first fastener 32 end plate 48 earlier replaces on the snap groove 74 of circuit board 7, promoting this second fastener 34 then slides backward, this clasp 50 is located in this snap groove 74, and lock on the bottom surface of this circuit board 7, this crotch 52 will match with the barb 38 of first fastener 32 this moment, make second fastener 34 can reach combination to the front slide releasing and the locking condition of circuit board by relative first fastener 32.

Second fastener 34 of this first device for fastening 3 is to be slidingly installed with at this first fastener 32 to be surrounded in the accommodation space that forms by biside plate 40 and top board 36, its compact conformation, and whole height is less, is fit to be applied on the communicating circuit plate; And the time only need use a screwdriver in dismounting, the opening 37 that passes first fastener, 32 top boards 36 acts on this start groove 51, replace and press down this second fastener 34 its crotch 52 is deviate from from the barb 38 of first fastener 32, promote this second fastener 34 then forward and can make clasp 50 deviate from the snap groove 74 of this circuit board 7, it is comparatively convenient to install and remove.

More than be first embodiment of the present utility model, this first device for fastening 3 is that the crotch 52 by second fastener 34 matches with the barb 38 of first fastener 32, stop second fastener, 34 relative first fasteners 32 to front slide, as changing execution mode, also can change end bending downwards an extending elastic arm (figure does not show) at these top board 36 openings 37, and offer a perforation (figure does not show) at the other end of this second fastener 34, when promoting this second fastener 34 backward, this elastic arm stretches under the effect of elastic force also can reach the effect that stops second fastener, 34 relative first fasteners 32 to remove locking to front slide in this perforation.In addition, locking mode between this first device for fastening 3 and the circuit board 7 also can change into and establish a projection (figure does not show) on circuit board 7, and offer a locking hole (figure do not show) at an end of this second fastener 34, the mode that matches with projection on the circuit board 7 by the locking hole of first device for fastening 3 reaches the purpose that radiator 1 is locked to circuit board 7.

Claims

1, a kind of heat abstractor combination comprises a radiator and two device for fastening; This radiator comprises a pedestal and some radiating fins; This two device for fastening is to be used for this radiator is locked to a circuit board, and one of them first device for fastening comprises one first fastener and one second fastener; It is characterized in that:

This first fastener is provided with a top board, the middle part of this top board offers an opening, and an end of this opening extension downwards is provided with a stop section, and each bends out side plate downwards the both sides of this top board, one end of this biside plate is fixed on the radiator, and respectively offers a chute at its other end;

This second fastener is to be slidingly installed with at this first fastener to be surrounded in the accommodation space that forms by biside plate and top board, one end of this second fastener is provided with a locking part, its other end is provided with a location division, each prominent sets out a slide block to its both sides at the middle part of this second fastener, this two slide block can corresponding be slidingly installed with in two chutes of first fastener, wherein when the locking part of this first device for fastening locks on the circuit board, the location division of this second fastener is to match with the stop section of this first fastener, stops relative first fastener of second fastener to take place to slide and removes locking.

2, heat abstractor combination according to claim 1 is characterized in that: this stop section is a barb that extends from the bending downwards of this top board opening one end.

3, heat abstractor combination according to claim 2 is characterized in that: this location division is a upwards crotch of warpage that matches with this barb.

4, heat abstractor according to claim 1 combination is characterized in that: this biside plate is to bend downward vertically from the both sides of this top board respectively.

5, heat abstractor combination according to claim 1 is characterized in that: also each bends out one to ending plate perpendicular to side plate to the other end of this biside plate.

6, heat abstractor combination according to claim 1, it is characterized in that: this locking part is a clasp.

7, heat abstractor according to claim 6 combination is characterized in that: respectively be provided with a snap groove on the relative both side edges of this circuit board, this clasp be located in this snap groove, and locks to the bottom surface of this circuit board.

8, heat abstractor combination according to claim 1 is characterized in that: the lower edge of this biside plate one end level bending respectively extends a fixed part that is connected with radiator.

9, heat abstractor combination according to claim 8, it is characterized in that: two ends of this radiator base respectively offer two screws, the screw of corresponding pedestal is provided with two through hole on this fixed part, thereby respectively be equiped with a bolt in this two through hole this first fastener is fixed on the radiator.

10, heat abstractor combination according to claim 1 is characterized in that: this second fastener middle part also is provided with a start groove.