CN201919288U

CN201919288U - Shielding box

Info

Publication number: CN201919288U
Application number: CN2010206744898U
Authority: CN
Inventors: 黄朝祥; 傅仁轩
Original assignee: GCI Science and Technology Co Ltd
Current assignee: GCI Science and Technology Co Ltd
Priority date: 2010-12-22
Filing date: 2010-12-22
Publication date: 2011-08-03
Anticipated expiration: 2020-12-22

Abstract

The utility model discloses a shielding box, which comprises a metal box body and metal box cover. A chamber is arranged on the side surface of the box body. The box cover is connected with the box body and is used for sealing the opening of the chamber of the box body. The chamber of the box body is divided into at least two chamber units by baffles in the chamber, wherein adjacent chamber units are communicated with each other via through holes on the baffles. By using the shielding box, different radio-frequency circuit boards can be respectively installed in the different chamber units and therefore electromagnetic interfere is prevented from being caused among the radio-frequency circuit boards.

Description

A kind of shielding box

Technical field

The utility model relates to the shell of electric equipment, especially a kind of shell that is used to adorn radio frequency circuit board.

Background technology

In existing wireless signal transmission and accepting device, several different radio frequency circuit boards are placed in the same chamber of housing usually, cause easily between the different radio frequency circuit board to interfere with each other, and the signal that influence transmits and receives is inaccurate.

Summary of the invention

The purpose of this utility model is, a kind of shielding box is provided, and it can prevent the phenomenon that several different radio frequency circuit boards generate electromagnetic waves mutually and disturb in same box body.

A kind of shielding box that the utility model provides, it comprises metal case and metal box-lid, on the side of this box body, be provided with chamber, this lid is connected with this box body, be used for closure of openings with the chamber of this box body, the chamber of described box body is separated at least two chamber unit by the dividing plate that is located in the chamber, and hole or the groove of adjacent two chamber unit on dividing plate is communicated with.

Preferably, be equipped with described chamber on two of described box body relative sides, the through hole of these two chambers through being located at cavity bottom is communicated with; Described lid is two, is used for respectively the closure of openings with described two chambers.

Preferably, on one of them sidewall of described chamber, offer installing hole, and the transparent plexiglass plate that matches with this installing hole is installed at this installing hole place.

Preferably, on the contact-making surface of described box body and described lid, be provided with the mounting groove that extends along the opening of described chamber, be built-in with the metallic seal bar at this mounting groove.

Preferably, opening compartment of terrain at the described chamber in the contact-making surface upper edge of described box body and described lid is provided with counterbore, and be embedded in nut at this counterbore, and on described lid, being provided with and the corresponding screw of this nut, box body is connected with the bolt thread of lid through passing this screw and nut.

Preferably, the thickness of described each chamber unit bottom is inequality.

Preferably, the thickness of described each chamber unit bottom is 6～15mm.

Preferably, on the outer surface of described box body and/or described lid, be provided with fin.

Preferably, described fin is the plough groove type fin.

Preferably, described box body and described lid are made by aluminium.

Compared with prior art, the utlity model has following advantage.

(1), different radio frequency circuit boards can be installed in respectively in the different chamber unit, thereby avoid the phenomenon that generates electromagnetic waves mutually between them and disturb by shielding box of the present utility model.

(2) bottom of each chamber unit of shielding box of the present utility model makes it to reach the effect of heat radiation according to the heat radiation thickness of its needs of power various computing of radio circuit, does not increase the weight of structure again; And in order to increase the complete machine radiating effect, the outer surface of box body and lid adopts the design of slot type fin.

(3) shielding box of the present utility model, by the metallic seal bar is set between box body and lid, and, adopt comparatively intensive screw fixation method between box body and the lid, not only increase effectiveness, but also can play good waterproof effect.

(4) shielding box of the present utility model, inserted num on box body causes screw hole position stripped thread to prevent from repeatedly to dismantle.

(5) shielding box of the present utility model embeds transparent plexiglass plate on one of them sidewall of chamber, make equipment attractive in appearance and do not influence transmitting of radio circuit, reaches waterproof requirement simultaneously.

Description of drawings

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is the vertical view of the box body of the utility model embodiment.

Fig. 3 is the upward view of the box body of the utility model embodiment.

Fig. 4 is the right view of the box body of the utility model embodiment.

Fig. 5 is the stereogram that the box body of the utility model embodiment is seen from a direction.

Fig. 6 is the stereogram that the box body of the utility model embodiment is seen from another direction.

Fig. 7 is the vertical view of the preceding lid of the utility model embodiment.

Fig. 8 is the upward view of the back lid of the utility model embodiment.Description of reference numerals: 1-box body; The 11-dividing plate; The 11a-line of rabbet joint; 12-front chamber unit; 13-rear chamber unit; The 14-through hole; The 15-mounting groove; The 16-nut; 17-joint installing hole; The 18-fin; The 19-installing hole; Lid before the 2-; The 21-screw; The 22-fin; Lid behind the 3-; The 31-screw; The 4-poly (methyl methacrylate) plate.

Embodiment

Shielding box of the present utility model is made up of box body 1, preceding lid 2 and back lid 3, box body 1, preceding lid 2 and afterwards lid 3 make by aluminium.To shown in Figure 6, on former and later two sides of box body 1, be milled with 6 front chamber unit 12 and 3 rear chamber unit 13 that are used to hold radio frequency circuit board that are used to hold radio frequency circuit board as Fig. 1 respectively.For the ease of wiring, on the dividing plate 11 between adjacent two chamber unit, be provided with line of rabbet joint 11a, the bottom of front chamber unit 12 and rear chamber unit 13 is provided with through hole 14 therein.By different radio frequency circuit boards is installed in respectively in the different chamber unit, thereby avoid the phenomenon that generates electromagnetic waves mutually between them and disturb.

Each

chamber unit

12,13 bottoms make it to reach the effect of heat radiation according to the heat radiation thickness of its needs of power various computing of radio circuit, do not increase the weight of structure again.In the present embodiment, the bottom thickness that is used for the chamber unit of erection unit power amplifier is not less than 10mm.The bottom thickness that is used to install the chamber unit of miscellaneous equipment is not less than 6mm.In order to increase the complete machine radiating effect, on the outer surface of box body 1, be provided with plough groove type fin 18.

On the sidewall of box body 1, offer the joint installing hole 17 that communicates with front chamber unit 12 and rear chamber unit 13, and on the top of box body 1, offer the rectangle installing hole 19 that communicates with one of them front chamber unit 12, and the transparent plexiglass plate 4 that matches with this installing hole 19 is installed at these installing hole 19 places, make equipment attractive in appearance and do not influence transmitting of radio circuit, reach waterproof requirement simultaneously.

Preceding lid 2 and back lid 3 are used for the closure of openings of each front chamber unit 12 of difference and each rear chamber unit 13.On the contact-making surface of box body 1 and preceding lid 2 and back lid 3, be respectively equipped with the mounting groove 15 that extends along the opening of chamber, be built-in with metallic seal bar (not shown on the figure) at this mounting groove 15.Simultaneously, on the contact-making surface of box body 1 and preceding lid 2 and back lid 3, be respectively equipped with and be provided with a counterbore, and be embedded in nut 16 at this counterbore along the every interval 8～12mm of the opening of chamber.Referring to Fig. 7 and Fig. 8, on preceding lid 2 and back lid 3, be provided with and this nut 16 corresponding screws 21,31, box body 1 is connected with the bolt thread of back lid 3 through passing this screw 21,31 and nut 16 with preceding lid 2.In addition, on the surface of preceding lid 2, be provided with plough groove type fin 22, to increase the radiating effect of complete machine.

Only be specific embodiment of the utility model below, do not limit protection range of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection range of the present utility model.

Claims

1. shielding box, it comprises metal case and metal box-lid, on the side of this box body, be provided with chamber, this lid is connected with this box body, be used for closure of openings with the chamber of this box body, it is characterized in that: the chamber of described box body is separated at least two chamber unit by the dividing plate that is located in the chamber, and through hole or the line of rabbet joint of adjacent two chamber unit on dividing plate is communicated with.

2. shielding box according to claim 1 is characterized in that: be equipped with described chamber on two of described box body relative sides, the through hole of these two chambers through being located at cavity bottom is communicated with; Described lid is two, is used for respectively the closure of openings with described two chambers.

3. shielding box according to claim 1 is characterized in that: offer installing hole on one of them sidewall of described chamber, and at this installing hole place the transparent plexiglass plate that matches with this installing hole is installed.

4. shielding box according to claim 1 is characterized in that: be provided with the mounting groove that extends along the opening of described chamber on the contact-making surface of described box body and described lid, be built-in with the metallic seal bar at this mounting groove.

5. shielding box according to claim 4, it is characterized in that: the every interval 8～12mm of opening at the described chamber in the contact-making surface upper edge of described box body and described lid is provided with a counterbore, and be embedded in nut at this counterbore, be provided with on described lid and the corresponding screw of this nut, box body is connected with the bolt thread of lid through passing this screw and nut.

6. the described shielding box arbitrary according to claim 1 to 5 is characterized in that: the thickness of described each chamber unit bottom is inequality.

7. shielding box according to claim 6 is characterized in that: the thickness of described each chamber unit bottom is 6～15mm.

8. shielding box according to claim 7 is characterized in that: be provided with fin on the outer surface of described box body and/or described lid.

9. shielding box according to claim 8 is characterized in that: described fin is the plough groove type fin.

10. shielding box according to claim 6 is characterized in that: described box body and described lid are made by aluminium.