CN200986681Y

CN200986681Y - Hard disk shock-absorbing device

Info

Publication number: CN200986681Y
Application number: CN 200620144466
Authority: CN
Inventors: 周学宾
Original assignee: Shenzhen Coship Electronics Co Ltd
Current assignee: Shenzhen Coship Electronics Co Ltd
Priority date: 2006-12-26
Filing date: 2006-12-26
Publication date: 2007-12-05
Anticipated expiration: 2016-12-26

Abstract

The utility model provides a hard disc vibration-damping device, which comprises a bolt insert, an elastic vibration damper and a nut insert. The bolt insert and the nut insert are fixed on the elastic vibration damper. A hollow structure by connecting two cylinders is used for the hard disc vibration-damping device. By changing the material hardness of the elastic vibration damper, an elastic modulus of the whole vibration-damping device can be changed to achieve the ideal vibration damping effect. Compared with the prior art, the vibration-damping device can thoroughly cancel the rigid connection between a hard disc and a vibration source and achieve the good vibration damping effect in the case that the hard disc suffers impacts from various directions. Thus, the vibration-damping device settles the problem of vibration of a vehicle-carried or vessel-carried hard disc due to great impacts.

Description

The hard disk shock-absorbing device

Technical field

The utility model relates to a kind of hard disk and the fixing structure of hard disk rack, especially a kind of hard disk shock-absorbing device.

Background technology

Hard disk and hard disk rack are fixing generally to be by 4 inch screws hard disk to be fixed on the hard disk rack, hard disk all is directly to be connected with hard disk rack and screw with hard disk rack and hard disk, the vibrations of equipment and hard disk rack itself will be passed to hard disk by screw like this, in the time of hard disk work, outside vibrations cause losing of data especially easily even can cause the damage of hard disk.Especially in vehicle-mounted monitoring equipment, hard disk is by general using as storage medium, but usually because vibration problems causes hard disk corruptions to cause loss of data.

Shown in Figure 1 is the structure that a kind of prior art is used for hard disk shock-absorbing, adds rubber blanket 3 and carry out damping between the hard disk rack 4 of hard disk main body 1 and Fixed disk, and screw 2 passes hard disk rack 4 and is installed on hard disk main body 1.The shortcoming of the prior art is:

1, the shockproof effect of rubber blanket is very limited, it only relies on the elastic modulus of elastomeric material itself to play shockproof effect, therefore can only satisfy the working environment of the less situation of exterior vibration, relatively poor to the working environment shockproof effect that amplitude such as mobile unit and frequency are all bigger.

2, the prior art is to vibrations and surge guard poor effect from horizontal direction, and establishes vehicle-mounted

The vibrations of amplitude maximum all come from horizontal direction in being equipped with.

Another prior art is that Chinese patent CN01130712.9 number discloses " oscillation damping method of hard disc of computer and device thereof " on July 5th, 2004.It comprises hard disk main body, hard disk rack, screw, cushion rubber and pad, and cushion rubber and pad are set on the screw, and links together with hard disk main body and hard disk rack.The shortcoming of the prior art is:

1, the screw of Fixed disk and hard disk are still direct-connected relation, and extraneous vibrations still can be conducted on the hard disk by screw;

2, since be subjected to cushion rubber thickness can not very big influence, to bad, behind ageing of rubber, can break in addition, thereby lose antihunt action because being subjected to long-term impact from the impact shockproof effect that is parallel to the gib screw axis direction.

Can not well eliminate vibrations between hard disk main body and the hard disk bracket in view of existing hard disk shock-absorbing device, the hard disk shock-absorbing device that provides a kind of damping effect good is provided.

The utility model content

The hard disk shock-absorbing device that provides a kind of damping effect good is provided the purpose of this utility model.

In order to reach its purpose, the utility model is achieved by the following technical solutions: described hard disk shock-absorbing device comprises screw inserts, elastic shock attenuation body and nut inserts, and this screw inserts and nut inserts are fixed in the elastic shock attenuation body.

Described elastic shock attenuation body is that two cylinders intersect the shape that forms.

Described elastic shock attenuation body adopts hollow-core construction.

Described screw inserts and nut inserts are copper turning parts, have adhesive phase between they and the elastic shock attenuation body.

Compared with prior art, it can completely abolish being rigidly connected between hard disk and the vibroseis, to hard disk under situation about being subjected to from the impact of all directions, all can accomplish shockproof effect preferably, solve the vibration problems under hard disk can be subjected to greater impact vehicle-mounted and carrier-borne etc. the environment for use.

Description of drawings

Fig. 1 is the hard disk shock-absorbing structural representation of prior art.

Fig. 2 is a hard disk shock-absorbing schematic representation of apparatus of the present utility model.

Fig. 3 is the wiring layout of hard disk shock-absorbing device of the present utility model and hard disk main body and hard disk rack.

The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

See also Fig. 2, hard disk shock-absorbing device of the present utility model is made up of screw inserts 20, elastic shock attenuation body 30, nut inserts 40.Screw inserts 20 is a copper turning part, its end is for there being externally threaded screw-rod structure 22, the other end is big " worker " font ledge structures 24 in middle little both sides, should " worker " font ledge structure 24 can guarantee that screw inserts 20 can not deviate from because of being subjected to external force from elastic shock attenuation body 30.Nut inserts 40 is female Screw hole structure, and its profile is big " worker " font ledge structures in middle little both sides, and this structure can guarantee that nut inserts 40 can not deviate from because of being subjected to external force from elastic shock attenuation body 30.Elastic shock attenuation body 30 is to be the elastomeric material goods, also can be other resilient material goods, it is that two right cylinders are handed over the shape of passing through, the center is hollow, when being subjected to external impacts, not only the elastic deformation of elastic shock attenuation body 30 resilient materials itself can play buffer action, because the hollow of elastic shock attenuation body 30 and right cylinder hand over the structure of passing through to make whole parts also can play bigger buffer action because of malformation, this structure has guaranteed that more hard disk can bear bigger impact endurance test shock simultaneously.The material of elastic shock attenuation body 30 is a resilient material, therefore can change the elastic modulus of whole vibroshock by the hardness that changes resilient material, makes it to be applicable to vibration isolation requirements such as different frequency and amplitude.

With the rubber is example, elastic shock attenuation body 30 forms by the injection machine injection, simultaneously screw inserts 20 and nut inserts 40 are embedded in wherein in advance in that elastic shock attenuation body 30 is injection molding, on the outer wall on screw inserts 20 and the nut inserts 40, has special-purpose adhesive phase (figure does not show), can strengthen the combination of screw inserts 20 and nut inserts 40 and elastic shock attenuation body 30, prevent to deviate from because of being subjected to bigger external force screw inserts 20 and nut inserts 40.

Please refer to Fig. 3, be the wiring layout of hard disk shock-absorbing device of the present utility model and hard disk main body 10 and hard disk rack 60.Being connected of DISK to Image shock attenuation device and hard disk main body 10 need be made up of 4 shock attenuation devices of the present utility model, 4 screws 50 and a hard disk rack 60.When assembling, the screw inserts 20 with externally threaded screw-rod structure matches with the screw hole of hard disk bottom, and shock attenuation device of the present utility model and hard disk main body 10 is fixing.Screw 50 passes hard disk rack 60 and cooperates with the nut inserts 40 with internal thread, and hard disk rack 60 and shock attenuation device of the present utility model are fixed.The hard disk shock-absorbing device that the utility model provides is connected between hard disk rack 60 and the hard disk main body 10.

When equipment is given a shock impact, the vibrations of hard disk rack 60 are just isolated by elastic shock attenuation body 30, because the special construction of elastic shock attenuation body 30, can flexible distortion and malformation on all directions, therefore make shock attenuation device of the present utility model when the impact that is subjected to upper and lower, front, rear, left and right all directions, can both play well shockproof and damping effect.Simultaneously because it is the hollow structure that two cylinders intersect, can guarantee that whole shock-damping structure is close at the elastic modulus of all directions, make this mechanism be particularly suitable for hard disk shock-absorbing under all bigger situation of vibration amplitude such as vehicle-mounted or carrier-borne and frequency, in the vehicle-mounted monitoring equipment that uses this device, the spoilage of its hard disk can drop to below 5/1000ths.

Claims

1, a kind of hard disk shock-absorbing device is characterized in that, it comprises screw inserts (20), elastic shock attenuation body (30) and nut inserts (40), and described screw inserts (20) and nut inserts (40) are fixed in elastic shock attenuation body (30).

2, a kind of hard disk shock-absorbing device as claimed in claim 1 is characterized in that, described elastic shock attenuation body (30) is that two cylinders intersect the shape that forms.

3, a kind of hard disk shock-absorbing device as claimed in claim 1 or 2 is characterized in that, described elastic shock attenuation body (30) inside is hollow-core construction.

4, a kind of hard disk shock-absorbing device as claimed in claim 1 is characterized in that, described screw inserts (20) is terminal for externally threaded screw-rod structure (22) is arranged.

5, a kind of hard disk shock-absorbing device as claimed in claim 4 is characterized in that, big " worker " font ledge structure (24) in little both sides in the middle of the end that described screw inserts (20) is connected with elastic shock attenuation body (30) has.

6, a kind of hard disk shock-absorbing device as claimed in claim 1 is characterized in that, described nut inserts (40) is female Screw hole structure.

7, a kind of hard disk shock-absorbing device as claimed in claim 6 is characterized in that, its profile of described nut inserts (40) is big " worker " font ledge structures in middle little both sides.

8, as claim 1 or 4 or 6 described a kind of hard disk shock-absorbing devices, it is characterized in that described screw inserts (20) and nut inserts (40) are copper turning parts.

9, a kind of hard disk shock-absorbing device as claimed in claim 1 is characterized in that, has adhesive phase between described screw inserts (2), nut inserts (40) and the elastic shock attenuation body (30).