CN201285657Y

CN201285657Y - Vibration isolation apparatus for hard disc

Info

Publication number: CN201285657Y
Application number: CNU2008201786914U
Authority: CN
Inventors: 李恒
Original assignee: SHENZHEN STREAMING VIDEO TECHNOLOGY Co Ltd
Current assignee: STREAMAX TECHNOLOGY CO., LTD.
Priority date: 2008-11-06
Filing date: 2008-11-06
Publication date: 2009-08-05
Anticipated expiration: 2018-11-06

Abstract

The utility model discloses a hard-disk vibration-isolating device comprising an upper fixing cover, a lower fixing plate and a vibration-isolating cushion, wherein the upper fixing cover and the lower fixing plate are fixedly connected to form a hollow box capable of containing a hard disk; the vibration-isolating cushion is arranged on the internal circumferential surface of the hollow box. The hard-disk vibration-isolating device adopts a rubber vibration-isolating cushion or a foam vibration-isolating cushion which has low cost and excellent vibration-isolating effect. In the structural design, the utility model adopts a simple mode of a sheet metal box, thereby well achieving the effects of high performance, low cost and simple assembly in limited space.

Description

Vibration isolating apparatus for hard disc

Technical field

The utility model relates to a kind of vibration isolating apparatus for hard disc, particularly a kind ofly is used for hard disk measures absorption to energy of vibration isolation mounting.

Background technology

Hard disk applications has the fast advantage of high capacity response in Digital Video System.But the high-accuracy hard disk of physical construction to vibration with impact very sensitively, particularly in automobile scenarios, how to realize the vibration isolation protection of hard disk, very big to the job stability and the reliability effect of hard disk and even whole set equipment.Just present, the vibration isolation of hard disk protection has several implementation methods in the vehicle-mounted machine, is exemplified below:

At first, the hard disk vibration isolation support used of notebook is a kind of common vibration isolating apparatus for hard disc.Shortcoming is: notebook vibration isolation rack space is too small, the design size of vibration insolation means is restricted very big, the scope that material is selected also has been subjected to very big influence, be difficult to accomplish weak in main vibration frequency interval or the partition vibrational energy, only realized design original intention---the shock resistance of notebook hard disk vibration isolation support, and in many cases, the major requirement of especially actual vehicle road condition is the weak or partition that vibrates to external world, and therefore the actual effect of whole vibrating isolation system is undesirable.

Secondly, directly use military project matured product steel-wire isolator as vibration insolation means.Shortcoming is: war products are too expensive, and cost generally is about tens times of preceding a kind of scheme, be unfavorable in civilian main flow marketing, and the steel-wire isolator size take up room morely more greatly, are unfavorable for the product miniaturization.

At last, hard disk directly is rigidly fixed in device interior, handles at the outside anti-vibration and shock that adopts of whole set equipment.Shortcoming is: vibration insolation means exposes and is subjected to the corrosion of various environmental stresses easily, and long-time back usefulness descends, and is difficult in all directions during transport falling and accomplishes buffer protection to hard disk.

The utility model content

Technical problem to be solved in the utility model provides a kind of vibration isolating apparatus for hard disc, and this device vibration isolation efficiency is good, easily assembling, and cost is low.

For solving the problems of the technologies described above, technical scheme provided by the utility model is: a kind of vibration isolating apparatus for hard disc, and this device includes fixed cap, bottom plate and vibration isolator, and the described fixed cap of going up is fixedlyed connected with bottom plate, and formation can be held the sylphon of hard disk; Described vibration isolator is located on the inner peripheral surface of sylphon.

Described vibration isolator is fixedly connected on the inner peripheral surface of sylphon.

Described vibration isolator is a square block.

The advantage that the utlity model has: but outstanding rubber vibration insulating pad, the foam vibration isolator of vibration isolating effect with low cost adopted.Adopt the plain mode of panel beating box on the structural design, in limited space, well reached the effect of high-performance, low cost and simple and easy assembling.

Description of drawings:

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is the scheme of installation of vibration isolator in the last fixed cap.

Embodiment:

As illustrated in fig. 1 and 2, a kind of vibration isolating apparatus for hard disc comprises fixed cap 10 and bottom plate 11 on one, and last fixed cap 10 is locked 11 fixedly connected with bottom plate, and formation can be held the sylphon shape of hard disk 12.Vibration isolator is square, includes two foam vibration isolators 22, two foam vibration isolators 20, a foam vibration isolator 24, four foam vibration isolators 23 and two rubber sleeves 21, all is located on the internal perisporium of sylphon shape, and the hard disk 12 that will hold coats and carries out the vibration isolation effect.Last fixed cap 10 wherein, bottom plate 11 all adopts panel beating.

Four foam vibration isolators 23 stick on respectively on the bottom plate 11.As Fig. 2, stick on the fixed cap 10 shown in two foam vibration isolators, 22, two foam vibration isolators, 20, the one foam vibration isolators 24.Two rubber vibration insulating pads 21 are enclosed within the hard disk both sides, place then in the fixed cap 10.

According to conservation of energy principle, extraneous vibrational energy can be converted into heat by the damping action of rubber vibration insulating pad, is delivered to hard disk again after the vibrational energy decay.Frequency with extraneous vibrational energy is come subregion, is being lower than vibrating isolation system natural frequency place in vibration frequency, is the rigidity of vibrating isolation system to what vibration isolating effect played a major role, claims rigidity control again, and choose reasonable rigidity just can effectively suppress the vibration amplification.At the resonant frequency place, the factor that influences the resonance amplitude amplification is the quality of vibrating isolation system, is called quality control, and the quality of choose reasonable vibrating isolation system just can effectively suppress amplitude and amplify.After having spent resonance zone, mainly the nonlinear interaction by rubber and foam damping system just can effectively absorb the vibration isolation energy that declines.

Notice that the utility model is not limited to embodiment described here, though those sufacing means differences, but apparent, be equal to similarly, equally be in the related protection domain of the utility model.

Claims

1, a kind of vibration isolating apparatus for hard disc is characterized in that: this device includes fixed cap, bottom plate and vibration isolator, and the described fixed cap of going up is fixedlyed connected with bottom plate, and formation can be held the sylphon of hard disk; Described vibration isolator is located on the inner peripheral surface of sylphon.

2, vibration isolating apparatus for hard disc according to claim 1 is characterized in that: described vibration isolator is fixedly connected on the inner peripheral surface of sylphon.

3, vibration isolating apparatus for hard disc according to claim 1 and 2 is characterized in that: described vibration isolator is a square block.