CN2405262Y

CN2405262Y - Casing for computer

Info

Publication number: CN2405262Y
Application number: CN 99241049
Authority: CN
Inventors: 刘建忠; 陈允隆; 刘宇泰
Original assignee: FUJIN PRECISION INDUSTRY (SHENZHEN) CO LTD; Hon Hai Precision Industry Co Ltd
Current assignee: FUJIN PRECISION INDUSTRY (SHENZHEN) CO LTD; Hon Hai Precision Industry Co Ltd
Priority date: 1999-04-05
Filing date: 1999-12-11
Publication date: 2000-11-08
Anticipated expiration: 2009-12-11
Also published as: TW452112U; CN2407385Y

Abstract

The utility model relates to a computer casing which is provided with an outer casing and a base, wherein, the top wall, the bottom wall and the side wall of the outer casing form an accommodating space. The outer casing is provided with a front wall, and the front wall is provided with an opening which is communicated with the accommodating space. The base can be accommodated in the accommodating space of the outer casing in a sliding mode. The base is provided with a front board, a back board, and a frame body and a bottom board which are in bridge joint between the front board and the back board. The front board of the base and the front wall of the outer casing are clamped and connected together by a connecting device.

Description

Computer casing

The utility model is about a kind of computer casing, refers to a kind of have shell and pedestal especially, guides, assembles the all-in-one-piece computer casing therebetween and by coupling arrangement.

Typical vertical computer casing shape such as box-like body, it has an opening in order to encapsulate such as disc driver, motherboard, CD drive and power supply unit grade system element.This kind housing is surrounded by forward and backward, upper and lower side plate, and side plate is for fixing, and another side plate is then removable, in assembling process, the fixed side of housing must be turned downwards so that removable side plate corresponding opening up in order to assembling.Yet when needing assembling or maintenance, these side plates have limited the installing of computer subsystem element, and for being easy to install and safeguard each the subsystem element in the computer system, the deviser must enlarge the enclosure interior space.

For addressing the above problem, a kind of drawer type housing that can improve computer inner member assembling characteristic is developed.Wherein the motherboard carrier is slidably mounted in the housing, and has dismoutability, and is provided with the slide rail type carrier and is used to install power supply unit and disc driver elements such as (comprising hard, floppy disk driver), thereby is beneficial to assembling.

Along with further developing of science and technology, the speed of central processing unit (CPU) has surpassed 500MHz, and when a central processing unit with 500MHz was installed in the computer casing, the problem that is caused by electromagnetic interference (EMI) will very seriously and essential solve.And above-mentioned housing is to be made by the sheet metal of thickness between 0.7 to 1.2 millimeter, and offer plurality of holes on it, there is the gap between plate, electromagnetic wave can overflow from these holes and gap location, especially the electromagnetic wave that overflows from the gap that the hole and the header board of header board engages with other plate direct projection computer user especially.Therefore the bore hole size on the header board is to be designed to both can prevent electromagnetic-wave leakage, can dissipate computer central interior processor (CPU) and heat that other element produced simultaneously again.

For preventing that electromagnetic wave from missing from the gap location of housing, can add shell fragment or the jerk-finger folder is set, to prevent the gap between two-phase body contact plate in the housing trip edge.Yet, prevent that with shell fragment the method for Electromagnetic Interference from need determine the position that shell fragment is installed, but can not determine to need how many shell fragments could effectively reduce Electromagnetic Interference by after the test for several times.And jerk-finger is general and coverboard is integrally formed, so the coverboard properties of materials has limited the performance of jerk-finger.And behind shell dismounting two to three times, this integrally formed jerk-finger can follow the string and can not contact with coverboard again, so after a computer dismounting three times, computer casing will no longer have the function of anti-electromagnetic interference (EMI).

Can type computer casing then provides and has prevented the electromagnetic interference (EMI) most effectual way.This housing header board and biside plate are affixed with closing-up, so do not have the gap between top board and base plate and these plates.This kind can shell body has a rail mounted installation bracket in order to fixing subsystem element, this rail mounted installation bracket in opening slips into housing after, later plate seals this opening.Yet this carriage only supports by the slide rail of housing, therefore has instability.When shipping, this computer casing structure can't be born the destruction that may occur.And the slide rail type installation bracket has tolerance on fit between housing and carriage, and this can not align the disc driver that is installed on the carriage with header board, and makes the disc driver panel stretch out header board.

The purpose of this utility model is to provide a kind of to be had good anti-electromagnetic interference performance and is easy to assemble the computer casing of performance.

Another purpose of the present utility model is to provide a kind of computer casing, and this housing has the adapting device of guiding and positioning pedestal and shell, thereby strengthens the computer casing structure, and is used to locate and guide the coupling arrangement that pedestal cooperates with shell, thereby is beneficial to assembling.

The technical solution of the utility model is that this computer casing has shell and pedestal, and wherein the roof of shell, diapire and sidewall constitute receiving space, and this shell also has an antetheca, offers the opening of a connection receiving space on the antetheca.Pedestal slidably is contained in the receiving space of shell, and has header board, back plate and bridge joint support body and base plate therebetween.Coupling arrangement is then with pedestal header board and shell antetheca engagement connection one.

By such scheme, the utility model structure is firm, assembling is easy and have good anti-electromagnetic interference performance.

Below in conjunction with accompanying drawing the utility model is further described.

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

Fig. 2 A is the stereographic map of shell antetheca of the present utility model.

Fig. 2 B is the partial enlarged drawing of shell antetheca of the present utility model, to show a lappet.

Fig. 3 A is the stereographic map of pedestal header board of the present utility model.

Fig. 3 B is the partial enlarged drawing of pedestal header board of the present utility model, to show a pilot hole.

Fig. 4 A is under no tolerance on fit, the partial enlarged drawing that pedestal pilot hole of the present utility model cooperates with the shell lappet.

Fig. 4 B is having under the tolerance on fit partial enlarged drawing that pedestal pilot hole of the present utility model cooperates with the shell lappet.

Please refer to Fig. 1, is the three-dimensional exploded view of the utility model computer casing 10, and it comprises a shell 12 and a removable pedestal 14 that is assembled in this shell 12.Wherein shell 12 has a receiving space 19 that is surrounded by antetheca 16, sidewall 18, roof 20 and diapire 22.Are openings 24 with respect to antetheca 16 on the shell 12, antetheca 16 is further offered one first opening 17, to accommodate the disc driver (figure does not show) that is immobilizated on the pedestal 14.Pedestal 14 is to be used to install computer subsystem element, and it has the support body 32 of header board 26, back plate 28, base plate 30 and bridge joint header board 26 and back plate 28.This support body 32 is in order to a disc driver (figure does not show) and a power supply unit (figure does not show) to be installed, also to offer an opening 34 on the header board 26, with the ccontaining front portion that is installed on the disc driver in the support body 32.When this pedestal 14 was installed up to shell 12, header board 26 was fitted to each other with antetheca 16 and first and

second opening

17,34 is run through to accommodate the fixing disc driver.

Please refer to Fig. 2 A, shown the inner structure of shell 12 antethecas 16, form many lappets 36 on the antetheca 16, these lappets 36 vertically extend internally from header board 16 inside surfaces.Cooperate and consult Fig. 2 B, these lappets 36 have a vertical edges 38 and two horizontal location limits 39 and adjoin in aforementioned the two oriented limit 40.

Please refer to Fig. 3 A, shown the front portion structure of pedestal 14, offer many pilot holes 42 on its header board 26.Please in the lump with reference to Fig. 3 B, there are four inclined sides 44 at pilot hole 42 middle parts again, form the rhomboid shape in this.Be correct shell 12 and the pedestal 14 installed, the gulde edge 39 of lappet 36 is maintained in the positioning hole corresponding 42.

Fig. 4 A is ideally (being that 14 of shell 12 and pedestals do not have the assembling tolerance), when pedestal 14 is fixed in the shell 12, and the mated condition of lappet 36 and pilot hole 42.Fig. 4 B has then described in the presence of certain tolerance on fit, the mated condition of lappet 36 and pilot hole 42.

Please more in the lump with reference to Fig. 2 B and Fig. 3 B, the height h1 of lappet 36 is starkly lower than the height h2 of pilot hole 42.Simultaneously, the height t 1 of vertical edges 38 also is starkly lower than the height t 2 of the rhomboid part of pilot hole 42.In the ideal case, shown in Fig. 4 A, lappet 36 will directly extend and pass through pilot hole 42.And generally speaking, there is certain build-up tolerance between shell 12 and the pedestal 14, so the practical set situation shown in Fig. 4 B, the inclined side 44 restricted guidance limits 40 of pilot hole 42 wherein, so can produce a positive force between the inclined side 44 of the guide edge 40 of lappet 36 and pilot hole 42.After lappet 36 inserts, this positive force will make lappet 36 push in the center of pilot hole 42, and the header board 26 of the antetheca 16 of shell 12 and pedestal 14 is fitted to each other and aligns so that pedestal 14 slips are packed in the shell 12 like this.Thereby and first and second opening 17,34 disc driver of tightening device on shell 12 and pedestal 14 that also be fitted to each other.

Claims

1. computer casing, it comprises shell and pedestal, wherein this shell has the receiving space that is surrounded by roof, diapire and sidewall, this pedestal slidably is contained in this receiving space, it is characterized in that: this shell also comprises an antetheca, and this antetheca has at least one lappet that stretches into receiving space, pedestal is corresponding to have header board, offer at least one pilot hole on the header board,, make this shell antetheca and the affixed one of pedestal header board to hold the corresponding lappet of antetheca.

2. computer casing as claimed in claim 1 is characterized in that: the lappet of this shell has a vertical edges at least in free end.

3. computer casing as claimed in claim 2 is characterized in that: this lappet further comprises at least one guide edge, to cooperate with above-mentioned pilot hole.

4. computer casing as claimed in claim 3 is characterized in that: this lappet further comprises at least one gulde edge, so that this lappet is positioned in the pilot hole.

5. computer casing as claimed in claim 3 is characterized in that: this pilot hole middle part has at least one inclined side and contacts with the guide edge of lappet.

6. computer casing as claimed in claim 1 is characterized in that: this pilot hole has at least one inclined side at middle part that is formed to cooperate with lappet.

7. computer casing as claimed in claim 1 is characterized in that: this shell antetheca offers first opening, and the pedestal header board offers second opening, and when lappet was fixed in the pilot hole, first opening and second register were also put.

8. computer casing as claimed in claim 1 is characterized in that: this lappet free end has the adjacent with it guide edge of a vertical edges and two, and this guide edge contacts with the inclined side of pilot hole.

9. computer casing as claimed in claim 8 is characterized in that: this pilot hole has four inclined sides and forms a rhomboid body in the middle part.

10. computer casing as claimed in claim 9 is characterized in that: the height of this vertical edges is lower than the height of pilot hole rhomboid part.

11. computer casing as claimed in claim 10 is characterized in that: the inclined side of this pilot hole impels the guide edge of lappet to be tending towards the center of pilot hole.