CN2566416Y

CN2566416Y - Optical drive with airflow guide design

Info

Publication number: CN2566416Y
Application number: CN 02247588
Authority: CN
Inventors: 吕逸伟; 吴仁琛; 林荣贵
Original assignee: Msi Technology Co ltd
Current assignee: Msi Technology Co ltd; Micro Star International Co Ltd
Priority date: 2002-08-28
Filing date: 2002-08-28
Publication date: 2003-08-13
Anticipated expiration: 2012-08-28

Abstract

The utility model relates to an optical disk drive with an airflow guide design, which comprises a main body and a tray, wherein the main body is provided with a shell body and a plurality of electronic elements which are contained in the shell body. An opening is arranged on the front side of the shell body. The tray holds the optical disk and is provided with a disk surface. Moreover, the disk surface is provided with a downward concave shallow groove for containing the optical disk. The front end and the back end outside the shallow groove are respectively provided with at least one through hole. Therefore, the airflow on and above the tray can be communicated through each through hole during the operating state of the optical disk so as to reduce the pressure difference on the upper side and the lower side of the tray. Therefore, the vibration of the tray can be suppressed, noise is reduced, and the reading accuracy for the optical disk is raised.

Description

The CD drive of tool air-flow guiding design

[technical field]

The utility model relates to a kind of CD drive, particularly relates to a kind of CD drive that reduces the tool air-flow guiding design of noise vibration.

[background technology]

With digital age arriving and development of information industry, CD drive can be said so, and computer is main now one of is equipped with substantially, its data reading speed is from early stage two times of speed, four times of low-speed ranges such as speed, rapid amplifying has reached 50 times more than the speed so far, CD speed then surpasses 10,000rpm, but the vibration problems of its generation that runs up is all the more serious relatively, and may influence the accuracy that cd resource reads or writes, and its noise also makes us, and unbearably it is disturbed.

An existing CD drive as shown in Figure 1 comprises a loam cake 91, a support 92, a protecgulum 93, a lower cover 94 and a pallet 95.Pallet 95 is driven by the driving mechanism (figure does not show) on the support 92, enters CD drive inside and can carry a CD 96, and this CD 96 also is subjected to another driving mechanism (figure does not show) to drive rising, carries out the data reading-writing action for an optical read/write head 97.

But to shown in Figure 4, in real-world operation, air-flow 951 is more smooth-going because structural obstruction is less in pallet 95 tops as Fig. 2, and pressure 952 is lower so flow velocity is very fast.Hinder more because of 95 times square structures of pallet on the contrary, air-flow 953 flow velocitys are slow and pressure 954 is bigger, so near an opening 955 places that pallet 95 moves for optical read head 97, exist and showing pressure differential, cause pallet 95 vibrations and CD 96 faces to rock, form unsettled wind and cut and cause vibrations, noise and read difficulty.

So, how to improve existing CD drive because of the vibrating noise problem that pallet upper and lower air-flow differential produces, be research and development emphasis of the present utility model.

[utility model content]

Fundamental purpose of the present utility model is to provide a kind of CD drive of tool air-flow guiding design, can guide the pallet upper and lower sides airflow of CD, with balance pallet upper and lower pressure, thereby can suppress the vibrations of pallet and reduce noise, promote CD and read accuracy; And do not need to increase additional components and make simple.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of CD drive of tool air-flow guiding design, comprise a main body and a pallet, this main body has a housing and is placed in most electronic mechanism elements of this enclosure interior, an opening is also established in this housing front side, this pallet carries this CD, this pallet has a card, and this card is provided with the recessed shallow slot of ccontaining this CD, it is characterized in that:

This card is respectively equipped with at least one through hole along this shallow slot outside front end and rear end.

The CD drive of tool air-flow guiding design of the present utility model can also have following additional technical feature:

This pallet card is to be provided with two through hole along this rear end, shallow slot outside.

Respectively this through hole can be triangular in shape, and this triangle comprises a base and the summit away from this shallow slot towards this shallow slot, and this base is circular-arc.

This pallet card also can be provided with a through hole along this rear end, shallow slot outside, this through hole is quadrilateral, this pallet card is provided with two through holes and triangular in shape along this shallow slot outside front end, and this triangle comprises a base and the summit away from this shallow slot towards this shallow slot, and this base is circular-arc.

Whereby, under the CD operating condition, the air-flow of pallet upper and lower sides can be communicated with through the guiding of each through hole, and reduces the pressure differential of pallet upper and lower sides, thereby can suppress the vibrations of pallet and reduce noise, promotes CD and reads accuracy.Therefore moreover the design of this through hole need not increase extra materials and parts or complex process, can not increase production cost and meets economic benefit.

[description of drawings]

Be elaborated below by Cui embodiment and accompanying drawing CD player to the utility model tool air-flow guiding design, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of an existing CD drive;

Fig. 2 is an one pallet top gas flowfield schematic top plan view under this existing CD drive operating condition;

Fig. 3 is this pallet below gas flowfield elevational schematic view under this existing CD drive operating condition;

Fig. 4 is the opening part front-view schematic diagram that this pallet moves for an optical read head under this existing CD drive operating condition, to show this pallet upper and lower air-flow and pressure state;

Fig. 5 is the exploded perspective view of the utility model one than Cui embodiment;

Fig. 6 is the exploded perspective view of the utility model one second embodiment

Fig. 7 is that this is than one pallet top gas flowfield schematic top plan view under the Cui embodiment operating condition;

Fig. 8 is that this is than this pallet below gas flowfield elevational schematic view under the Cui embodiment operating condition; And

Fig. 9 is this opening part front-view schematic diagram that moves for an optical read head than this pallet under the Cui embodiment operating condition, to show this pallet upper and lower air-flow and pressure state.

[embodiment]

As shown in Figure 5, the CD drive one of the utility model tool air-flow guiding design comprises the pallet 3 of a main body 1 and a carrying one CD 2 than Cui embodiment, and can and 2 of CDs carry out reading or/and writing of data.

Main body 1 has a housing 11 and is placed in housing 11 inside to carry out most electronic mechanism elements 12 that the data clearing house needs with CD 2.Housing 11 comprises a loam cake 111, a support 112, a protecgulum 113 and a lower cover 114, is provided with and define an accommodation space 115 power supply clamp mechanism elements 12 jointly in its inside.Protecgulum 113 also is provided with an opening 116, and one can be in blocking or open the catch 117 that pivots and switch between these opening 116 two positions.12 of electronic mechanism elements comprise an optical read/write head 13 that reads or write optical data as the Spindle Motor assembly 121 of a drive CD 2 rotations, from CD 2 corresponding tracks, a driving mechanism that reaches drive pallet 3 front and back and move up and down (figure does not show) etc., because main body 1 is roughly the same with existing CD drive corresponding position, so its detail structure and effect not elsewhere specified (NES).

Pallet 3 is driven by the driving mechanism of main body 1 inside, and but carrying disc 2 is through the accommodation space 115 of protecgulum 113 openings 116 turnover housings 11 inside, and after pallet 3 enters accommodation space 115, CD 2 can be subjected to another driving mechanism (figure does not show) to drive rising, carries out the data reading-writing action for optical read/write head 13.Pallet 3 has a rectangular horizontal card 31, and it is one slightly recessed and cooperate the circular shallow slot 311 of CD 2 size shapes that card 31 front sides form, for CD 2 suitable ccontaining location.Card 31 forms two through hole 312 respectively along shallow slot 311 outside front ends and rear end.Each through hole 312 roughly is a triangle in the present embodiment, be the base 313 of partial arc shape and comprise one towards shallow slot 311,314 of this triangular apex are positioned at the side away from shallow slot 311, and each through hole 312 roughly disposes along shallow slot 311 outer ring Zhou Fangxiang equal angles.

In addition, among another embodiment as shown in Figure 6, card 31 ' only has single slightly rectangular through hole 312 ' in rear end, the shallow slot 311 ' outside, changes in the example in other, and this through hole 312 ' then can further be done the variation of quantity or shape.

As shown in Figs. 7-9, borrow each through hole 312 that is provided with in pallet 3 cards 31 shallow slots 311 outside front and back ends, can guide the air-

flow

32,33 of pallet 3 upper and lower sides, and sidewind 33 is upwards flowed from pallet 3 belows, the

pressure

34,35 of self-poise pallet 3 and CD 2 upper and lowers is poor, and can suppress the vibrations of pallet 3 and reduce noise, promote CD 2 and read accuracy.Therefore moreover the design of this through hole 312 must not increase extra materials and parts or complex process, can not increase production cost and meets economic benefit.

Claims

1, a kind of CD drive of tool air-flow guiding design, comprise a main body and a pallet, this main body has a housing and is placed in most electronic mechanism elements of this enclosure interior, an opening is also established in this housing front side, this pallet carries this CD, this pallet has a card, and this card is provided with the recessed shallow slot of ccontaining this CD, it is characterized in that:

2, the CD drive of tool air-flow guiding design as claimed in claim 1 is characterized in that: this pallet card is to be provided with two through hole along this rear end, shallow slot outside.

3, the CD drive of tool air-flow guiding design as claimed in claim 1 or 2, it is characterized in that: respectively this through hole is triangular in shape, and this triangle comprises a base and the summit away from this shallow slot towards this shallow slot, and this base is circular-arc.

4, the CD drive of tool air-flow guiding design as claimed in claim 1, it is characterized in that: this pallet card is provided with a through hole along this rear end, shallow slot outside, this through hole is quadrilateral, this pallet card is provided with two through holes and triangular in shape along this shallow slot outside front end, this triangle comprises a base and the summit away from this shallow slot towards this shallow slot, and this base is circular-arc.