CN2779552Y

CN2779552Y - Optic drive electromagnetic shield structure

Info

Publication number: CN2779552Y
Application number: CN 200520040141
Authority: CN
Inventors: 庄佳晃
Original assignee: Shanghai Huanda Computer Technology Co Ltd; Mitac International Corp
Current assignee: Shanghai Huanda Computer Technology Co Ltd; Mitac International Corp
Priority date: 2005-03-15
Filing date: 2005-03-15
Publication date: 2006-05-10
Anticipated expiration: 2015-03-15

Abstract

The utility model discloses the electromagnetic shielding structure of a CD-ROM, which is used for reducing electromagnetic interference when the CD-ROM and a computer casing are matched for use. The utility model is characterized in that a front plate is arranged on the computer casing and comprises a frame opening and a baffle plate which extends inwards from one side edge of the frame opening; one end of the baffle plate away from the frame opening is provided with a plurality of open holes; a protective clamp is clamped on the baffle plate and is provided with an opening corresponding to the open holes of the baffle plate; the first clamping edge of the protective clamp extends an elastic sheet along the direction of the opening. The elastic sheet is tightly stuck on a main body of the CD-ROM to form a better electric property transmission passage between the main body of the CD-ROM and the baffle plate. Thus, electromagnetic wave energy radiated on the main body is absorbed by the main body of the CD-ROM and is rapidly led into the ground by the elastic sheet, and the protective capacity of the CD-ROM for electromagnetic interference is effectively increased when the DC-ROM is used in a computer system.

Description

The electromagnetic armouring structure of CD-ROM drive

Technical field

The utility model relates to a kind of electromagnetic armouring structure of CD-ROM drive, and particularly about a kind of electromagnetic armouring structure that is applied to the CD-ROM drive in the computer housing.

Background technology

In host computer, the assembly of each charged work is space radiation electromagnetic wave towards periphery all, and electromagnetic wave not only may disturb the work of each assembly in the main frame, and, electromagnetic wave also may leak and the computer user is damaged from computer housing, therefore, we need take to prevent the electromagnetic radiation measure to the electronic package in the computer housing, to reduce the electromagnetic exposure in the cabinet computer user are damaged.Usually, electromagnetic screen is the common method that reduces electromagnetic radiation; In addition, order is set to have good ground connection to improve the continuity of shell conduction to the shell that electromagnetic wave plays shielding action, also is one of effective ways that reduce electromagnetic radiation.

Computer housing (not illustrating among the figure) is the metal shell of an approximate sealing, and this metal shell is connected with the earth, and with the electromagnetic wave of electronic package institute radiation in the shielding case, the minimizing electromagnetic wave releases cabinet outward.But because equipment such as CD-ROM drive is when being used for computer, CD-ROM drive must expose outside computer housing for the interface of user's operation, leaks the gap that the electromagnetic wave in the computer housing just may exist between CD-ROM drive and cabinet and the computer user is damaged.Assembling decomposing schematic representation when the CD-ROM drive that is illustrated in figure 1 as known technology is applied in the host computer.Wherein, body 210 outsides of CD-ROM drive 20 are coated with the shell 220 of metal, and this shell 220 can be protected body 210, and can suitably shield the electromagnetic wave that CD-ROM drive 20 produces when work; And header board 10 is parts of forming computer housing, and the edge of this header board 10 is protruded and is provided with sidewall 130, this sidewall 130 of mat and this header board 10 is fixed in corresponding site on the computer housing; And this header board 10 has a frame mouth 120, and when making CD-ROM drive 20 be assembled in the header board 10, the cover plate 211 of CD-ROM drive 20 exposes from frame mouth 120, operates this CD-ROM drive 20 with the Portable computer user; This header board 10 also is provided with plate washer 110, the body 210 of CD-ROM drive 20 places the sidewall 130 of header board 10 and the space between the plate washer 110, and the cover plate 211 of CD-ROM drive 20 exposes outside frame mouth 120, and mat screw etc. is fixed in the stator 222 that is provided with on the shell 220 the CD-ROM drive fixed mount (not shown) of reserving in the cabinet and CD-ROM drive 20 is fixed.

In the structure that above-mentioned CD-ROM drive 20 and header board 10 are used, header board 10 is the part of the cabinet of computer, and the earth electric connection is set on the cabinet, and the electromagnetic wave energy and the static that are beneficial to absorb on the cabinet, conduct in time import the earth.In known technology, for the convenience of considering that CD-ROM drive 20 and header board 10 collocation are used, so the height between plate washer 110 and the sidewall 130 is arranged to be slightly larger than the thickness of the body 210 of CD-ROM drive 20, when CD-ROM drive 20 and header board 10 are used, there is certain clearance between plate washer 110 and the body 210, so this gap electrically contacts between this plate washer 110 and the body 210 fully because of can not guaranteeing, promptly difficultly between the body 210 of CD-ROM drive 20 and plate washer 110 form good electrical transmission channel continuously, so when the body 210 of CD-ROM drive 20 and shell 220 absorbed radiations to it on behind the electromagnetic wave, electromagnetic wave energy can not be rapidly imports electromagnetic wave into the earth through plate washer 110, has therefore reduced the shielding electromagnetic waves ability.

Summary of the invention

The utility model discloses a kind of electromagnetic armouring structure of CD-ROM drive, and the electromagnetic interference (EMI) of this shielding construction when being used in order to reduce CD-ROM drive and computer housing.

The electromagnetic armouring structure of CD-ROM drive of the present utility model has adopted following technical scheme: a kind of electromagnetic armouring structure of CD-ROM drive, this CD-ROM drive is assembled on the header board of computer housing, described header board comprises the frame mouth, extend the plate washer that is provided with from frame mouth one lateral edges, and the end away from the frame mouth is provided with several square openings on the plate washer, this shielding construction comprises: a guard clip, its have that two of invagination relatively is provided with first, second gripper edge, coat the two sides of the plate washer that is arranged at header board respectively, and the perforate correspondence position on this guard clip and the plate washer is provided with opening, and wherein first gripper edge opening of postponing extends shell fragment; Described shell fragment is a strip sheet metal, and an end of this shell fragment is connected in the tapping of described first gripper edge, and the other end is set to have " V " lower concave part of shape; When the guard clip coating is arranged at plate washer, the opening of guard clip and the overlapping setting of the perforate of plate washer, and described shell fragment extends the tapping that is arranged at plate washer; When CD-ROM drive and header board are used, described shell fragment closely and the body of CD-ROM drive closely attach.

Owing to adopted above technical scheme, the shell fragment that coating is arranged on the guard clip on the washer adhere well on the CD-ROM drive bulk, formed the excellent electrical property transmission channel via shell fragment between the body of washer and CD-ROM drive, avoided having the gap between the washer and body and the defective that can not form electrical transmission channel in the past.So, behind the shell of CD-ROM drive and the bulk absorption radiation electromagnetic wave thereon, electromagnetic energy can import the earth rapidly via shell fragment, be used in the computer system the protective capacities of electromagnetic interference (EMI) thereby effectively raise CD-ROM drive, reduced that electromagnetic wave releases cabinet outward and injury that user health is caused.

Description of drawings

Fig. 1 is that known CD-ROM drive is applied to the decomposing schematic representation in the host computer.

Fig. 2 is the perspective exploded view of the electromagnetic armouring structure of CD-ROM drive of the present utility model.

Fig. 3 is the schematic perspective view of the guard clip in the electromagnetic armouring structure of CD-ROM drive of the present utility model.

Fig. 4 is the part assembling schematic perspective view of the electromagnetic armouring structure of CD-ROM drive of the present utility model.

Fig. 5 is a solid assembling synoptic diagram shown in Figure 4.

Fig. 6 is the diagrammatic cross-section of the electromagnetic armouring structure of CD-ROM drive of the present utility model.

Embodiment

Be illustrated in figure 2 as the perspective exploded view of the electromagnetic armouring structure of the utility model CD-ROM drive.Compare with the known CD-ROM drive 20 and the header board 10 of the computer housing structure of using that matches, the utility model more from prevent cabinet electromagnetic wave leak and to the angle of electromagnetic screen, mat improves the structure that CD-ROM drive 20 matches with the header board 10 of computer housing and uses, make between the header board 10 of computer housing and the CD-ROM drive 20 and have better grounding function, reaching good electromagnetic shielding action, and effectively reduce the gap that electromagnetism exists leak when CD-ROM drive 20 and header board 10 are used.

This electromagnetic armouring structure is that CD-ROM drive 20 is when being used in host computer with header board 10, in order to improve the screening ability of computer housing to electromagnetic radiation; Wherein, header board 10 is assembled in the computer housing, belongs to the part of cabinet.Header board 10 is provided with a frame mouth 120, extends from a lateral edges of frame mouth 120 to be provided with plate washer 110, and a side of this plate washer 110 is provided with according to certain intervals and forms several wavy square openings 111, and Yi is Ji be provided with several button holes 112 on the File plate 110; The edge of this header board 10 is provided with protrudes the sidewall 130 that extends, and wherein a sidewall 130 is provided with respectively with plate washer 110 and the limit, two opposite sides of frame mouth 120, being beneficial to CD-ROM drive 20 is used with header board 10, the end that CD-ROM drive 20 has cover plate 211 can be more easily promotes from the space between sidewall 130 and the plate washer 110, and makes the cover plate 211 of CD-ROM drive 20 expose outside the frame mouth 120 of header board 10.

Compared to the prior art, electromagnetic armouring structure of the present utility model also comprises a guard clip 30, this guard clip 30 have invagination and be oppositely arranged first, second gripper edge 310 and 320, and this is first years old, second gripper edge 310 and 320 and plate washer 110 on perforate 111 correspondence positions be provided with opening 330, simultaneously, be provided with along the shell fragment 340 of the direction extension of opening 330 from first gripper edge 310, these shell fragment 340 integral body are set to a strip sheet metal, one end of this shell fragment 340 is connected in opening 330 places of first gripper edge 310, and the other end is set to have " V " lower concave part of shape, as shown in Figure 3.

Simultaneously, with reference on the Shu File plate 110 Shang Fig. 2 and Fig. 4 several button holes 112 being set, and the position corresponding to button hole 112 is provided with the buckling parts (not shown) that protrudes towards button hole 112 on one of them of first, second gripper edge 310 and 320, and this buckling parts can be interlocked with corresponding button hole 112.First, second gripper edge 310,320 of guard clip 30 is placed the two sides of plate washer 110 respectively, and after making buckling parts and button hole 112 approximate location being alignd, promoting guard clip 30 makes it towards the direction motion that coats plate washer 110, at this moment, the button hole 112 of buckling parts and correspondence position is interlocked and guard clip 30 fixedly is coated on File plate 110, as shown in Figure 4.At this moment, the corresponding one by one coincidence in position of the perforate 111 of setting on the opening 330 that is provided with on the guard clip 30 and the plate washer 110, and shell fragment 340 is positioned at the position of the perforate 111 on the plate washer 110 just.

Simultaneously, because an end of shell fragment 340 is connected in opening 330 places on the guard clip 30, and the other end forms " V " the shape lower concave part, the end portion that is the lower concave part of shell fragment upwarps relatively, convenient CD-ROM drive 20 is assembled among the header board 10, CD-ROM drive 20 as shown in Figure 5 is assembled in the schematic perspective view in the header board 10.Reach as shown in Figure 6 simultaneously that A-B is the diagrammatic cross-section of center line among Fig. 5, as can be seen, the lower concave part of shell fragment 340 is attached on the body 210 of CD-ROM drive 20 closely, and the cover plate 211 of CD-ROM drive 20 exposes outside the frame mouth 120 of header board 10.

In the electromagnetic armouring structure of CD-ROM drive 20 of the present utility model, owing to be provided with the guard clip 30 that coats plate washer 110, the lower concave part of the shell fragment 340 that is provided with on this guard clip 30 can adhere well on the body 210 of CD-ROM drive 20, make between body 210 and the header board 10 and form the electric connection path by shell fragment 340, and the cabinet under the header board 10 is arranged to electrically connect with the earth, thereby forms grounded circuit by shell fragment 340 between the header board 20 of the body 210 of this CD-ROM drive 20 and computer housing.When electromagenetic wave radiation that other electronic package in electromagnetic waves that CD-ROM drive 20 itself produces or the host computer produces is on the shell 220 of CD-ROM drive 20 and body 210, wherein the electromagnetic wave energy that is absorbed by shell 220 and body 210 can conduct to header board 10 via shell fragment 340 rapidly and import the earth, thus when improving CD-ROM drive 20 and being used with header board 10 to the screening ability of electromagnetic radiation.Simultaneously, guard clip in the utility model shielding construction 30 is owing to adopt two first, second gripper edges 310,320 that are provided with relatively of invagination, and fixed by 112 fastenings of the button hole on the buckling parts on it and the plate washer 110, and is easy to assembly.

Claims

1. the electromagnetic armouring structure of a CD-ROM drive, this CD-ROM drive is applied in the computer, is used with computer housing, it is characterized in that this shielding construction comprises:

One header board is the part of computer housing, and this header board has a frame mouth, expose for an end side surface of CD-ROM drive, and extend the plate washer that is provided with from this frame mouth one lateral edges, and the end away from the frame mouth is provided with several square openings on this plate washer;

One guard clip, first, second gripper edge that it has invagination and is oppositely arranged, this first, second gripper edge coats the two sides of the plate washer that is arranged at header board respectively, and the perforate correspondence position on this guard clip and the plate washer is provided with opening, and first gripper edge of this guard clip is provided with along the shell fragment of opening extension;

An end side surface that makes above-mentioned CD-ROM drive exposes from the frame mouth of header board, at this moment, the shell fragment of guard clip adhere well on the body of CD-ROM drive, make between body and the header board and form the excellent electrical property connecting path by shell fragment, the electromagnetic wave energy that makes on the CD-ROM drive to be absorbed can import the cabinet of the computer that is connected with the earth rapidly via the shell fragment of guard clip.

2. the electromagnetic armouring structure of CD-ROM drive as claimed in claim 1 is characterized in that, described shell fragment is a strip sheet metal.

3. the electromagnetic armouring structure of CD-ROM drive as claimed in claim 1 is characterized in that, an end of described shell fragment is connected in the tapping of described first gripper edge, and the other end is set to have " V " lower concave part of shape.

4. the electromagnetic armouring structure of CD-ROM drive as claimed in claim 1, it is characterized in that, described washer is provided with several button holes, and the corresponding position of the button hole of first, second gripper edge of described guard clip and above-mentioned washer is provided with the protrusion buckling parts, and this buckling parts can be fastened in the button hole of washer and make the guard clip fixed packet be overlying on washer.

5. the electromagnetic armouring structure of CD-ROM drive as claimed in claim 1, it is characterized in that, the edge of described header board is provided with the sidewall of protrusion, and wherein a sidewall protrudes frame mouth one side be arranged at described header board, and this sidewall and washer are relatively arranged on the limit, two opposite sides of described frame mouth.

6. the electromagnetic armouring structure of CD-ROM drive as claimed in claim 1 is characterized in that, the side of an end of the body of described CD-ROM drive is provided with cover plate, and the frame mouth on the described header board is arranged to corresponding size with the cover plate of CD-ROM drive and is exposed from the frame mouth for cover plate.