CN2412321Y

CN2412321Y - Integral radio-frequency screening box

Info

Publication number: CN2412321Y
Application number: CN 99247056
Authority: CN
Inventors: 杨昕; 贾广岩
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-11
Filing date: 1999-11-11
Publication date: 2000-12-27
Anticipated expiration: 2009-11-11

Abstract

The utility model belongs to a screening box with a single layer for holding more than two groups of radio frequency circuits. A cylindrical screening layer, a screening end cover and a middle isolation layer form an integral structure. The screening layer is provided with a regulation hole and a positioning hole. The middle isolation layer is positioned at the middle part of the cylindrical screening layer, and the cylindrical screening layer is divided into two screening space parts. Two groups of trapped waves or wave filtering units are connected with an overline opening. The screening end cover is buckled at both ends of the cylindrical screening layer. Because the utility model adopts an integral single layer screening mode, RF impedance from a ground line is effectively decreased, the integral structure is simplified, and the investment for a production apparatus and material is lowered.

Description

Integrated radio shielding box

The utility model relates to the screening arrangement of radio circuit, specifically is a kind of integrated shielding box that can hold two groups of above radio circuits.

The screen method of present existing trap or filter, general all is earlier two groups of traps or filter unit to be adopted porose screen shielding respectively and debug, two groups of traps or filter unit are not connected as one with one again with the metal outer cylinder of adjustment hole, for making the synthetic integral body of two trap wave units and good common ground property being arranged, must adopt mechanical rolling equipment in the production process, so just, produce two problems, the one, production equipment input and material investment are bigger, the 2nd, can only debug separately each trap wave unit in the production process, and can't carry out uniting and adjustment to two trap wave units, if the finished product imbalance is only scrapped, therefore increased production cost of products.

The purpose of this utility model is to overcome above-mentioned shortcoming, designed a kind of incorporate radio shielding box, solved effectively two traps or filter unit radio frequency altogether with the integration problem, but accomplish and to debug integral united test again separately to each trap or filter unit, and production process is oversimplified, minimizing equipment drops into and material consumption, thereby is satisfying under the prerequisite of technical indicator, reduce production costs, increase economic efficiency.

For achieving the above object, the utility model has been taked following measure: change double layer screen into single-layer shield, it is the integral structure that whole shielding box is made up of tubular screen, shielding end cap and three part of intermediate isolating layer, available copper sheet material is made, have a plurality of adjustment holes and an isolation location hole on the tubular screen, two-port respectively has a plurality of fastening clubfoots.Leave line outlet in the center, involutory limit of tubular screen and isolate location clubfoot and involutory clubfoot.Leave the installing hole of a radio frequency socket at shielding end cap center, periphery has a plurality of clubfoots that are interlocked with the tubular screen, and the two ends that make it to be fastened on the tubular screen become one.The intermediate isolating layer is the circular copper sheet that has breach and locator protrusions, places the middle part in the tubular screen, and its plane and tubular screen axis are perpendicular, and whole shielding box is divided into two shielding spaces.

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

Figure one is the expanded view of tubular screen of the present utility model.

Figure two is shielding end cap schematic diagrames of the present utility model.

Figure three is intermediate isolating layer schematic diagram of the present utility model.

Figure four is profile schematic diagrames of the present utility model.

(1) is adjustment hole among the figure one, has four adjustment holes, and (2) are to isolate location hole, and (3) are to fasten clubfoot, and (4) are line outlets, and (5) are to isolate the location clubfoot, and (6) are involutory clubfoots.(7) are the installing holes of radio frequency socket among the figure two, and (8) are to amount to clubfoot.(9) were the line mouths among the figure three, and (10) are locator protrusionss.(1) is adjustment hole among the figure four, and (2) are to isolate location hole, and (3) are to fasten clubfoot, and (11) are the intermediate isolating layers among the figure three.

Add and man-hour the screen among the figure one is rolled into tubular, and involutory clubfoot (6) pushed down opposite side to play a fixation, separator among the figure three places middle part (seeing figure four) in the cartridge type screen, locator protrusions (10) is inserted in the isolation location hole (2), cross in the slit that line mouth (9) embeds the location clubfoot (5) stoop, and all are connected seam weld with scolding tin, make intermediate isolating layer and tubular screen become the firm one of sealing, again two trap wave units are placed the both sides of intermediate isolating layer respectively, lead-in wire between them connects by the line mouth (9) of crossing of separator, fasten the shielding end cap that has the radio frequency socket at the two ends of tubular screen, skin at shielding box is installed injection casing, just can constitute a complete trapper.Because the utility model can be formed directly in the shielding space of two individual layers, so each trap wave unit " " can directly combine as a whole by the skin shielding, need not pass through other link, and have good radio frequency path altogether, because the shared outer shielding of two groups of trap wave units, and each trap wave unit all has two adjustment holes, so in the complete machine production process, can can two companies transfer again each trap wave unit dullness, increase the flexibility of debugging work.

Claims

1. make with the copper coin material for one kind, can hold the radio shielding box of two groups of traps or filter, it is characterized in that the integral structure that said radio shielding box is made up of tubular screen, shielding end cap and intermediate isolating layer.

2. according to the described radio shielding box of claim 1, it is characterized in that:

A. have a plurality of adjustment holes (1) and an isolation location hole (2) on the said tubular screen, respectively there are a plurality of fastening clubfoots (3) at the two-port place, leaves line outlet (4) in the center on the involutory limit of tubular screen and isolates location clubfoot (5) and involutory clubfoot (6);

The center of b. said shielding end cap leave a radio frequency socket by dress hole (7), the clubfoots (8) that periphery has a plurality of and tubular screen to be interlocked, the two ends that make it to be fastened on the tubular screen become one;

C. said intermediate isolating layer is the circular copper sheet that has breach (9) and locator protrusions (10), places middle part in the tubular screen, and its plane and tubular screen axis are perpendicular.