CN211702631U

CN211702631U - Double-layer shielding box

Info

Publication number: CN211702631U
Application number: CN201922401209.XU
Authority: CN
Inventors: 刘纪宏; 李洪学; 钟观长
Original assignee: Dongguan Zhengsheng Electronic Technology Co ltd
Current assignee: Dongguan Zhengsheng Electronic Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-16
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a double-deck shielded box, include box and connecting cable of constituteing by interior casing and shell body, interior casing and shell body are limited to the inside cavity that has the cavity respectively, the shell body will interior casing cladding is in it and the interval sets up, interior casing internally mounted has first filtering interface, the shell body rear portion is equipped with the mounting groove, the second filtering interface is installed to the mounting groove, first filtering interface is connected with second filtering interface through connecting cable. Install first filtering interface and second filtering interface respectively at interior casing inside and shell body, rethread connecting cable is with first filtering interface and second filtering interface connection, has reduced the signal interference of the inside product of waiting to detect of internal casing of external signal source, and the structure of internal casing and shell body has also effectively improved shielding effect simultaneously.

Description

Double-layer shielding box

Technical Field

The utility model relates to a shielded cell field, in particular to double-deck shielded cell.

Background

In the prior art, signal transmission among various electronic devices tends to develop in a wireless direction. In order to ensure that various electronic devices (such as bluetooth devices and wireless devices (WiFi or 4G products)) have good wireless transmission functions, it is necessary to perform transmission function testing (radio frequency testing) on the products at the development and manufacturing stages of the products, and in order to provide accuracy of the testing results and protect the products from being affected by other external signal testing environments, it is necessary to place the products to be tested in a signal shielding device. The shielding box is used as a signal shielding device, and utilizes shielding bodies in various shapes such as shells, plates and sleeves made of conductive or magnetic conductive materials to limit the electromagnetic capacity in a certain space range, so as to inhibit radiation interference and process conduction and radiation, thereby realizing that the tested wireless communication equipment can be tested in an interference-free testing environment.

In the existing shielding box, the electromagnetic interference to each socket in the box body is large, and for some products with high requirements on wireless transmission, the test effect of the products can be influenced, and the subsequent processing production of the products can be possibly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double-deck shielded cell aims at reducing the signal interference of other external signals to the shielded cell, improves the electromagnetic shield effect of each socket of box simultaneously, improves the accuracy of test product.

In order to achieve the above object, the utility model provides an include box and connecting cable of compriseing interior casing and shell body, interior casing and shell body are defined as the inside cavity that has the cavity respectively, the shell body will interior casing cladding is in it and the interval sets up, interior casing internally mounted has first filtering interface, the shell body rear portion is equipped with the mounting groove, the second filtering interface is installed to the mounting groove, first filtering interface is connected with second filtering interface through connecting cable.

Furthermore, the inner shell is provided with a support for mounting a first filtering interface and a through hole penetrating through the shell, the first filtering interface is mounted on the support, and the connecting cable penetrates through the through hole to be connected with the second filtering interface.

Further, the rear end of the inner shell is provided with a first vent hole, and a first waveguide window is installed in the first vent hole.

Further, the second filtering interface is installed at the rear end of the outer shell.

Further, the shell body is provided with a second vent hole, a second waveguide window is installed in the second vent hole, and a fan is installed on the second waveguide window.

Furthermore, a groove is arranged at the rear end of the inner shell, the through hole and the first waveguide window are arranged in the groove, and a baffle is arranged in the groove towards the second filter interface.

Furthermore, the front ends of the inner shell and the outer shell are respectively provided with a first opening and a second opening, the first opening and the second opening are located at the same horizontal position, the box body further comprises a switch door which can be installed on the outer shell in a pivoting mode, and the switch door can swing between positions where the first opening and the second opening are closed simultaneously and the first opening and the second opening are opened simultaneously.

Furthermore, wave-absorbing cotton and conductive silica gel are arranged between the inner shell and the outer shell at intervals.

Further, LED lamps distributed along the length positions of the inner shell are arranged inside the inner shell.

Furthermore, the first filtering interface and the second filtering interface are composed of a power interface, a signal line interface and a data interface which correspond to each other.

The utility model discloses technical scheme installs first filtering interface and second filtering interface respectively at the inside and shell body of interior casing, and rethread connecting cable is with first filtering interface and second filtering interface connection, has reduced the signal interference that the product was detected to the inside detection of interior casing of external signal source, and the structure of interior casing and shell body has also effectively improved shielding effect simultaneously.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a sectional view of part A;

fig. 4 is a perspective view of the hidden housing of the present invention.

The utility model discloses in, 1 is interior casing, 10 is first opening, 11 is the support, 12 is the through-hole, 13 is first ventilation hole, 14 is first waveguide window, 15 is the baffle, 16 is the recess, 2 is the shell body, 20 is the second opening, 21 is second ventilation hole, 22 is second waveguide window, 23 is the fan, 24 is the mounting groove, 3 is first filtering interface, 4 is second filtering interface, 5 is connecting cable, 6 is the switch door, 7 is the LED lamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indicators (such as … …, upper, lower, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiments of the present invention, the directional indicators are only used to explain the relative position, motion, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a double-deck shielded cell.

In the embodiment of the utility model, as shown in fig. 1 to 4, this double-deck shielded cell, include box and connecting cable 5 that comprise interior casing 1 and shell body 2, the box comprises interior casing 1 and shell body 2, interior casing 1 and shell body 2 are defined as the inside cavity that has the cavity respectively, shell body 2 will interior casing 1 cladding is in it and the interval sets up, interior casing 1 internally mounted has first filtering interface 3, shell body 2 rear portion is equipped with mounting groove 24, second filtering interface 4 is installed to mounting groove 24, first filtering interface 3 is connected with second filtering interface 4 through connecting cable 5. Install first filtering interface 3 and second filtering interface 4 respectively inside 1 inside and shell body 2 at the inner casing, rethread connecting cable 5 is connected first filtering interface 3 and second filtering interface 4, has reduced the signal interference of the internal 1 inside product of waiting to detect of external signal source, and the structure of shell body 1 and shell body 2 has also effectively improved shielding effect simultaneously. The box adopts a double-layer shell and double-interface filtering, and the shielding effect can reach 800MHZ-6GHZ >100db through testing.

Further, the inner shell 1 is provided with a support 11 for mounting the first filtering interface 3 and a through hole 12 penetrating through the shell, the first filtering interface 3 is mounted on the support 11, and the connecting cable 5 penetrates through the through hole 12 to be connected with the second filtering interface 4. Electromagnetic interference inside the inner housing 1 from an external signal source can be reduced by the design of the through-hole 12.

Further, the rear end of the inner housing 1 is provided with a first vent hole 13, and a first waveguide window 14 is installed in the vent hole. The waveguide window is a gas-or liquid-tight barrier designed for substantially transparent transmission of electromagnetic waves.

Specifically, the second filtering interface 4 is installed at the rear end of the outer shell 2.

More specifically, the outer case 2 is provided with a second ventilation hole 21, and the second ventilation hole 21 is mounted with a second waveguide window mounted with a fan 23.

The utility model discloses in, interior casing 1 rear end is equipped with recess 16, recess 16 is equipped with baffle 15 towards 4 directions of second filtering interface, through-hole 12 and first waveguide window 14 set up in recess 16. The through hole 12 is blocked from the outer shell 2 by the baffle 15, and the shielding effect is further improved.

Further, the front ends of the inner shell 1 and the outer shell 2 are respectively provided with a first opening 10 and a second opening 20, the first opening 10 and the second opening 20 are located at the same horizontal position, the box body further comprises a switch door 6 which can be pivotally installed on the outer shell, and the switch door 6 can swing between positions for simultaneously closing the first opening 10 and the second opening 20 and simultaneously opening the first opening 10 and the second opening 20.

The utility model discloses in, be equipped with between 2 intervals of interior casing 1 and shell body and inhale ripples cotton and conductive silica gel, further improve shielding effect through inhaling ripples cotton and conductive silica gel.

Specifically, the inner housing 1 is provided with LED lamps 7 distributed along its length. Generally, the test product has a small volume, and the LED lamp 7 is used for lighting to facilitate taking out and putting in the product.

The utility model discloses in, first filtering interface 3 and second filtering interface 4 comprise corresponding power source, signal line interface (like bluetooth signal) and data interface (like USB).

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A double shielded box, comprising:

the box body consists of an inner shell and an outer shell, the inner shell and the outer shell are respectively defined as chambers with cavities inside, and the inner shell is wrapped in the outer shell at intervals;

the filter comprises an inner shell, a first filter interface and a second filter interface, wherein the first filter interface is arranged in the inner shell;

the rear part of the outer shell is provided with a mounting groove, and the mounting groove is provided with a second filtering interface;

and the first filtering interface is connected with the second filtering interface through the connecting cable.

2. The double-shielded enclosure of claim 1 wherein: the inner shell is provided with a support for mounting a first filtering interface and a through hole penetrating through the shell, the first filtering interface is mounted on the support, and the connecting cable penetrates through the through hole to be connected with a second filtering interface.

3. The double-deck shielding cage of claim 2, wherein: the rear end of the inner shell is provided with a first ventilation hole, and a first waveguide window is installed in the first ventilation hole.

4. The double-shielded enclosure of claim 1 wherein: the second filtering interface is installed at the rear end of the outer shell.

5. The double-shielded enclosure of claim 1 wherein: the shell body is provided with a second ventilation hole, a second waveguide window is installed in the second ventilation hole, and a fan is installed on the second waveguide window.

6. The double-layer shielding cage of claim 3, wherein: the rear end of the inner shell is provided with a groove, the through hole and the first waveguide window are arranged at the groove, and the groove is provided with a baffle towards the second filtering interface.

7. The double-shielded enclosure of claim 1 wherein: the box body further comprises a switch door which can be installed on the outer shell in a pivoting mode, and the switch door can swing between positions where the first opening and the second opening are closed and opened simultaneously.

8. The double-layer shielding cage of claim 7, wherein: be equipped with between interior casing and the shell body interval and inhale ripples cotton and conductive silica gel.

9. The double-shielded enclosure of claim 1 wherein: LED lamps distributed along the length position of the inner shell are arranged inside the inner shell.

10. The double-shielded enclosure of claim 1 wherein: the first filtering interface and the second filtering interface are composed of corresponding power interfaces, signal line interfaces and data interfaces.