CN201213336Y

CN201213336Y - Electronic device cabinet

Info

Publication number: CN201213336Y
Application number: CNU2008200398292U
Authority: CN
Inventors: 张卫民; 万永志; 吴明
Original assignee: Nanjing NARI Group Corp; State Grid Electric Power Research Institute
Current assignee: Nari Technology Co Ltd
Priority date: 2008-07-01
Filing date: 2008-07-01
Publication date: 2009-03-25
Anticipated expiration: 2018-07-01

Abstract

The utility model provides an electronic equipment box with enhanced rigidity and hard deformation. The electronic equipment box comprises a basic framework formed by a left lateral plate and a right lateral plate connecting a plurality of cross beams as well as a front panel and a back panel, wherein each cross beam is provided with panel mounting screw holes and lateral plate mounting holes. The electronic equipment box is characterized in that the upper end and the lower rend of the lateral plates are respectively and additionally provided with longitudinal beams which are vertical to the cross beams, and the longitudinal beams are fixedly connected to the cross beams through fastening pieces. Since the longitudinal beams which are vertical to the cross beams are additionally arranged, an original cross beam framework of the box body is improved to be an across framework so as to increase the strength of the box for resisting the external force and improve the integral stress state of the box.

Description

Electronic equipment chassis

Technical field

The utility model relates to the general cabinet of electronic equipment class, relates in particular to a kind of framework and the panel electronic equipment chassis of assembly unit mutually.

Background technology

Electronic equipment chassis mostly adopts the aluminium section bar splicing structure at present, and promptly cabinet connects some crossbeams by left side plate and forms basic framework, adds upper cover plate and front and back panel and forms complete cabinet.This cabinet is at present by industry-wide adoption, and has the following advantages:

1, material adopts aluminium section bar and aluminium sheet, the Sheet-metal machine box of comparative steel plate structure, and the weight of cabinet own reduces greatly, makes that electronic equipment is light and handy, is easy to install and carry.

2, the splicing structure of crossbeam skeleton by adjusting the casing structure size that the crossbeam size can obtain needs, is very beneficial for modularization and standardized design.

3, the basic structure form of cabinet is not because of size changes, and casing structure spares such as relevant hinge, printed board guide rail, fixture can form general part.

4, aluminium itself can carry out surface treatments such as electrophoresis, oxidation, spraying, and process of surface treatment comparative maturity and have certain ornamentally can obtain the better products outward appearance.

But existing above-mentioned cabinet also exists following defective simultaneously: the cabinet insufficient rigidity easily causes printed board to come off in guide rail behind the stress deformation; Side plate and cover plate splice place are prone to the slit, have reduced Electromagnetic Compatibility of Power Electronics (EMC) performance; The securing member quantity of crossbeam junction is more and expose, and influences product appearance.

In addition, existing cabinet normally processes several circular holes on crossbeam when mounting guide rail, is provided with buckle in the guide rail bottom, and by tightly on crossbeam, the buckle fastening is finished installation at crossbeam circular hole edge with guide rail.This mounting means complex structure, processing capacity is big, is unfavorable for the further reduction of cabinet processing cost.

The utility model content

The technical problem that the utility model at first will solve provides a kind of rigidity enhancing, on-deformable electronic equipment chassis.

Electronic equipment chassis described in the utility model comprises by left side plate connecting basic framework and the front and back panel that some crossbeams are formed; Described crossbeam is provided with panel screw and side plate installing hole is installed; It is characterized in that: the longeron that becomes vertical placement with crossbeam is set up at the two ends up and down at side plate respectively, and is fixedly connected on the crossbeam by securing member.

Because the utility model has increased the longeron that becomes vertical placement with crossbeam, and cabinet itself is improved to the intersection skeleton by original crossbeam skeleton, increase cabinet and supported the intensity that is subjected to external force, improved the whole force-bearing situation of cabinet.

Secondly, in order to reduce or eliminate the slit at cabinet side board and cover plate splice place, improve the Electro Magnetic Compatibility of cabinet, longeron described in the utility model has lid pressing plate and the side guide that can be respectively fits with cover plate and side plate, the side guide of longeron and lid pressing plate are pushed down side plate and cover plate respectively, be fixed on the crossbeam by securing member, realize the whole closely splicing of side plate and cover plate.By the longeron setting of this kind structure, can whole compress the splicing of cabinet side board and cover plate, the slit of effectively reducing this splicing place.

In addition, in order further to improve the rigidity of cabinet, the cross section that is provided with the installation panel screw of crossbeam described in the utility model is less than the opposite side cross section, and sets up an installing hole on this opposite side cross section.The main cause of aluminium section bar splicing structure cabinet distortion commonly used is that the not enough deflection deformation that takes place of transverse beam rigidity causes.Cabinet described in the utility model, its section of beam shape is rationalized, and to change an original installing hole be two installing holes, has improved the crossbeam the moment of inertia effectively, and cabinet rigidity is further improved.

In addition, the guide rail on the crossbeam medial surface is installed for convenience, and the utility model can offer the groove of the guide rail bracket of can packing at described crossbeam medial surface, makes the opposite side cross section that is provided with the installation panel screw be down " U " tee section.During installation, guide rail bracket penetrates in the groove of crossbeam medial surface, and guide rail can directly be fixed on the guide rail bracket, and this mode has been avoided the circular hole processing capacity of original crossbeam, can effectively reduce the cabinet processing cost.

Get rusty for the connection securing member that prevents to pass longeron exposes, the utility model offers groove on the lateral surface of described longeron, loads the enclosed elastic bar in this groove.Block securing member by the enclosed elastic bar, also improved the cabinet outward appearance.

Description of drawings

Fig. 1 is the decomposition texture schematic diagram of existing cabinet;

Fig. 2 is the decomposition texture schematic diagram of the utility model cabinet;

Fig. 3 is the utility model cabinet end view;

Fig. 4 is the enlarged diagram at the A place of Fig. 3;

Fig. 5 is the section of beam schematic diagram that existing cabinet is adopted;

Fig. 6, Fig. 7 and Fig. 8 are the section of beam schematic diagrames that the utility model cabinet is adopted.

Embodiment

As shown in Figure 1, the basic structure of existing cabinet is interconnected to form skeleton by front column 1, rear column 5, crossbeam 2, side plate 4, and in addition cover plate 3 and front and back panel are formed up and down.Front and back panel changes because of various electronic equipments are different, so conceal in the drawings.As shown in Figure 1, the slit 9 of existing cabinet side board and cover plate is outside being directly exposed to, and this slit easily makes the signal of equipment own expose, and suffers interference from outside signals easily.

As Fig. 2, shown in Figure 3, the utility model cabinet has increased longeron 6, is interconnected to form the intersection skeleton by front column 1, rear column 5, crossbeam 2, longeron 6 and side plate 4, and longeron 6 compresses side plate 4 by securing member and fixedlys connected with crossbeam 2.

As shown in Figures 3 and 4, longeron 6 has respectively lid pressing plate 61 and the side guide 62 that fits with cover plate and side plate, side guide 62 and lid pressing plate 61 are pushed down side plate 4 and cover plate 3 respectively, securing member 8 passes stringer sides pressing plate 62, longeron 6 is fixed on the crossbeam 2, realizes that side plate 4 and the whole of cover plate 3 closely splice, cover plate 3 is pushed down by longeron 6 with the slit 9 that side plate 4 forms, become closed, make cabinet form complete shield.

As Fig. 2 and shown in Figure 4, offer groove 63 on the lateral surface of longeron 6, in groove 63, can load enclosed elastic bar 7.Enclosed elastic bar 7 can adopt soft rubber-plastics material, can be embedded in the longeron after each securing member assembling of cabinet is finished, and blocks the longeron securing member, and the cabinet outward appearance be can't see securing member, and appearance is preferably arranged.With enclosed elastic bar 7.

As shown in Figure 5, the cross section of the crossbeam that existing cabinet is adopted, the panel that is provided with horizontally set is installed nut cylindrical void 21 and side plate installing hole 22, and its opposite side remaining cross-section is less, is tabular.

As Fig. 6, Fig. 7 and shown in Figure 8, the utility model cabinet has redesigned the cross section of crossbeam 2, the panel that is not provided with of crossbeam 2 is installed the cross section of the cross section of nut cylindrical void 21 1 sides greater than opposite side, and sets up an installing hole 22 on the cross section that is not provided with panel installation nut cylindrical void 21 1 sides.The section of beam of the existing cabinet of contrast, this Cross section Design has improved the rigidity of crossbeam, makes the also corresponding increase of intensity of cabinet.Simultaneously, offered the groove 23 of the guide rail bracket that is used to pack on the medial surface of crossbeam 2, made the cross section of a side that is not provided with the installation panel screw be down " U " tee section.

As shown in Figure 7, the nut cylindrical void 21 that is used to install cabinet panel also can vertically be provided with.

As shown in Figure 8, can not use nut strip that cabinet panel is installed, and screw 21 is directly processed on crossbeam, this and nut strip effect are equal to.

Claims

1, a kind of electronic equipment chassis comprises by left side plate connecting basic framework and the front and back panel that some crossbeams are formed; Described crossbeam is provided with panel screw and side plate installing hole is installed; It is characterized in that: the longeron that becomes vertical placement with crossbeam is set up at the two ends up and down at side plate respectively, and is fixedly connected on the crossbeam by securing member.

2, electronic equipment chassis as claimed in claim 1 is characterized in that: described longeron has side guide and the lid pressing plate that can be respectively fits with cover plate and side plate.

3, electronic equipment chassis as claimed in claim 1 or 2 is characterized in that: the cross section that is provided with the installation panel screw of described crossbeam is less than the opposite side cross section, and sets up an installing hole on this opposite side cross section.

4, electronic equipment chassis as claimed in claim 3 is characterized in that: described crossbeam medial surface offers the groove of the guide rail bracket of can packing into, is down " U " tee section in the opposite side cross section that is provided with the installation panel screw.

5, as claim 1,2 or 3 described electronic equipment chassis, it is characterized in that: offer groove on the lateral surface of described longeron, be filled with the enclosed elastic bar in this groove.

6, electronic equipment chassis as claimed in claim 4 is characterized in that: offer groove on the lateral surface of described longeron, be filled with the enclosed elastic bar in this groove.