CN2907182Y

CN2907182Y - Fixing fastener

Info

Publication number: CN2907182Y
Application number: CN 200620072095
Authority: CN
Inventors: 于建春
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2007-05-30
Anticipated expiration: 2016-03-31

Abstract

The utility model discloses a clipping element convenient for disassembling and installing, which is applied in the radiating technology of the heating chip of an electric product by adapting the radiating fin. The fixing clipping element comprises a body, the middle part of the body is a cylinder structure, a nut cap is extended from one end of the cylinder structure, a clipping spring bench is arranged at the position near the nut cap, an assembling screw thread is extended from the other end of the cylinder structure corresponding to the nut cap, the fixing clipping element is matched with the assembling screw thread with a nut locking body, a nut structure is arranged in the nut locking body, the assembling screw thread is arranged in the nut structure, and a thread structure is extended from one side of the nut structure. In addition, the fixing clipping element also comprises a spring, which can fix the radiating fin onto the heating chip though the structure conveniently.

Description

Fixed fastener

[technical field]

The relevant a kind of fixed fastener of the utility model, and particularly relevant for a kind of Spring screws fixed fastener that is applied to convenient disassembly in the heat dissipation technology.

[background technology]

Along with the development of electronic industry, the transistor density of various electronic building bricks increases day by day, and the speed of deal with data is also more and more faster.As everyone knows, electronic building brick all can produce heat when work, and increase along with arithmetic speed, the power of its consumption and the heat of generation also increase thereupon, therefore we must utilize heat abstractor to come to distribute the heat that electronic building brick produces to the external world in time, be used for reducing the temperature of electronic building brick, to keep its normal steady operation.

Fastener is one of heat abstractor accessory of fixing cooling fins and euthermic chip, the elastic force of fastener directly affects the contact pressure between fin and the euthermic chip, pressure is big more in theory, contact area between fin and the euthermic chip is big more, thermal resistance is just more little, yet, increase the contact area of above-mentioned fin and euthermic chip, just need the corresponding fixed fastener of design.Please refer to and Figure 1 shows that existing a kind of fixed fastener, this fixed fastener comprise a bolt 20 and a compression spring 21.Wherein, these bolt 20 1 ends are provided with a nut 25, and this nut has a cylinder 25 times, and this cylinder end is provided with a screw thread 24, and these screw thread 24 diameters are slightly less than the upper end cylinder; And be provided with a draw-in groove 22 above screw thread 24 nearby, it can match with a C type clasp 23, and this C type clasp 23 is the annular that a sheet has opening, and it is outstanding that hoop inside convexes with some dentations in it; And there is a compression spring 21 to be arranged on the cylinder.

Please refer to shown in Figure 2, when assembling is used, at first will compress on the cylinder that spring 21 is sheathed on this fixed fastener, then this fixed fastener is passed through hole 11 and be sheathed on the fin 10, push bolt 20 top nuts 25 downwards, make draw-in groove 22 appear from heat abstractor 10 bottoms, snap in C type clasp 23 this draw-in groove 22 in by specific purpose tool this moment, fixed fastener just has been fixed on the fin 10 like this, with corresponding the tightening of screw (not illustrating among the figure) on these fixed fasteners and the locking and fastening system, so fin can be fixed on the euthermic chip.

Be not difficult to find out that there is following shortcoming in above-mentioned Spring screws fixed fastener:

1. need the C type be buckled with the tool of special use when assembling and be stuck in the draw-in groove assembling trouble, and difficulty.

2. dismounting difficulty, and the C type is buckled under the dismounting in a single day, and the C type is buckled and will be scrapped, and can not reuse.

The Spring screws fixed fastener that in view of this, be necessary in fact to provide a kind of simple in structure and easy accessibility, can reuse.

[summary of the invention]

Therefore, the purpose of this utility model is to provide a kind of fixed fastener, the simple in structure and easy accessibility of this fixed fastener, can reuse.

For reaching above-mentioned purpose, the invention provides a kind of fixed fastener of easy accessibility, this fixed fastener comprises a body, this body middle part is a cylindrical structure, one end of this cylindrical structure is extended with a nut, and be provided with an engaging spring step in position near nut, this cylindrical structure of the other end with respect to nut is extended with a combined screw tooth literary composition, and the said fixing fastener cooperates this combined screw tooth literary composition also to comprise a nut locking body, this nut locking body is provided with a nut structure, and be provided with combined screw Nei Yawen in this nut structure, and a side of nut structure is extended with a helicitic texture, in addition, the said fixing fastener also comprises a spring, this spring is placed on the body by engaging spring step, can easily this fixed fastener be assembled on the product by said structure, realizes its fixed function.

Compared to prior art, the utility model assembling is simple, convenient; And production cost has been saved in easily dismounting and recycling to a certain extent.

For making the purpose of this utility model, structural feature and function thereof there are further understanding, cooperate diagram to be described in detail as follows now:

[description of drawings]

Fig. 1 illustrates the structural representation of existing a kind of fixed fastener.

Fig. 2 illustrates the concrete application schematic diagram of existing a kind of fixed fastener.

Fig. 3 illustrates the perspective exploded view of the utility model one preferred embodiment.

Fig. 4 illustrates the concrete application schematic diagram of the utility model one preferred embodiment.

[embodiment]

See also shown in Figure 3ly, be the perspective exploded view of the utility model one preferred embodiment.This dismantled and assembled fixed fastener of Spring screws easily comprises a body 100, these body 100 middle parts are a cylindrical structure, and an end of this cylindrical structure is extended with a nut 101, and this cylindrical structure also is provided with an engaging spring step 103, this engaging spring step 103 is in the position near nut 101, also be extended with a combined screw tooth literary composition 105 with respect to the described cylindrical structure of the other end of nut 101, described fixed fastener cooperates combined screw tooth literary composition 105 also to comprise a nut locking body 200.This nut locking body 200 comprises in a nut structure 203 and this nut structure 203 and is provided with combined screw Nei Yawen 205, and a side of described nut structure 203 is extended with a helicitic texture 207, in addition, the said fixing fastener also comprises a spring 300, and this spring 300 is placed on the body 100 by engaging spring step 103.

See also Fig. 3, shown in Figure 4, during assembling, earlier spring 300 is clamped on the body 100 by engaging spring step 103, again the assembly hole (not illustrating among the figure) on the nut locking body 200 corresponding fin 400 is placed, then the combined screw Nei Yawen 205 on the literary composition of the combined screw tooth on the body 100 105 corresponding nut locking bodies 200 is tightened, promptly this fixed fastener is fixed on the fin 400, relends by above-mentioned helicitic texture 207 fin 400 is fixed on the euthermic chip (not illustrating among the figure).

The Spring screws fixed fastener that the utility model provides a kind of easy accessibility compared with prior art has following good effect:

1. assembling is simple, convenient.

2. make things convenient for dismounting, and can reuse, saved to a certain extent cost.

Claims

1, a kind of Spring screws fixed fastener, cooperate fin to be applied in the heat dissipation technology of euthermic chip on the electronic product, this fixed fastener comprises a body, this body middle part is a cylindrical structure, it is characterized in that: an end of this cylindrical structure is extended with a nut, this cylindrical structure of the other end with respect to nut is extended with a combined screw tooth literary composition, and this fixed fastener cooperates this combined screw tooth literary composition also to comprise a nut locking body, this nut locking body is provided with a nut structure, and be provided with combined screw Nei Yawen in this nut structure, and a side of nut structure is extended with a helicitic texture.

2, require 1 described Spring screws fixed fastener as profit, it is characterized in that: described cylindrical structure also is provided with an engaging spring step, and this engaging spring step is in the position near nut, so that spring is sticked on the body.