CN203353036U

CN203353036U - Micro integrated terminal feedthrough electromagnetic interference filter

Info

Publication number: CN203353036U
Application number: CN 201320382283
Authority: CN
Inventors: 要国伟; 方国兴
Original assignee: SHANGHAI AERODEV ELECTROMAGNETIC CO Ltd
Current assignee: SHANGHAI AERODEV ELECTROMAGNETIC CO Ltd
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2013-12-18
Anticipated expiration: 2023-06-28

Abstract

The utility model relates to a micro integrated terminal feedthrough electromagnetic interference filter. The micro integrated terminal feedthrough electromagnetic interference filter comprises an input wiring end, wherein the input wiring end is internally provided with wiring end input copper bars, a filter metal casing mounting face of the input wiring end is bonded by a conductive foam, a filter metal casing is arranged on the conductive foam, the filter metal casing is internally provided with core-through capacitors, and two output copper bars are respectively inserted into one corresponding core-through capacitor. The micro integrated terminal feedthrough electromagnetic interference filter is characterized in that the output copper bars and the corresponding input copper bars are integrated into one body, the two output copper bars are distributed in a staggered mode, and the core-through capacitors are fixed in the filter metal casing through a compaction mechanism. According to practical conditions of filter products, an integrated terminal and filter structure is employed, an integrated input and output copper bar structure is further employed, the two output copper bars are distributed in the staggered mode, a needed mounting space is reduced while a product production process is further simplified, a whole process has no welding, production cost is reduced while product reliability is greatly improved.

Description

The integrated feedthrough Electromagnetic interference filter of a kind of miniaturization integrated terminal

Technical field

The utility model relates to a kind of filter that can be widely used in the equipment such as the compact and communication cabinet that inner device volume is strict with of installing space, cabinet, emission for shielding and inhibition electromagnetic interference signal, belong to the Special safety class technical field in information security technology.

Background technology

Due to a variety of causes, current most of integrated terminal feed-through filter product is when producing, its input terminal copper bar is connected with the output copper bar, due to the restriction that is subject to inner feed-through capacitor installation, needs often by securing member, to realize connecting again by the double-screw bolt switching of customization.Although this mode of production is less demanding to equipment, but because production technology is comparatively loaded down with trivial details, parts increase, the frock while not only needing to customize special-purpose connecting stud and welding screw, and soldering not only needs to expend a large amount of scolders and man-hour, cause corresponding cost to rise.More need to pay close attention to,, due to human factor, can there be the rosin joint solder skip in soldering, and is not easy to be detected, and particularly the filter of large electric current requires more to be worthy of careful study to soldering.When serious, can cause damage to custom system.

At current various costs, constantly increase, under Product Cost Control and the more and more higher overall situation of quality requirement, obviously some falls behind above-mentioned technique.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of safe and reliable, the convenient production in enormous quantities in enormous quantities, is easy to the client and installs and uses, and can effectively promote the filter of the Electro Magnetic Compatibility of communication system.

In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide the integrated feedthrough Electromagnetic interference filter of a kind of miniaturization integrated terminal, be provided with the input terminal of terminals input copper bar in comprising, be bonded with conducting foam on the filter metal shell installed surface of input terminal, the filter metal shell is located on conducting foam, be provided with feed-through capacitor in the filter metal shell, two output copper bars insert respectively in feed-through capacitor separately, it is characterized in that: the output copper bar is integrated with corresponding input copper bar, two output copper bars are dislocatedly distributed, feed-through capacitor is fixed in the filter metal shell by hold-down mechanism.

Preferably, described input terminal comprises plastic casing, and wiring end cover is located at the top of plastic casing by mounting screw, is provided with screw assemblies and terminals input copper bar for wiring in plastic casing.

Preferably, described hold-down mechanism comprises the insulating press boards that is pressed in described feed-through capacitor top, be provided with conductive rubber between feed-through capacitor top and insulating press boards, be provided with in the bight of insulating press boards to compress and use screw, each compression penetrates in self-clinching standoff separately with screw, and self-clinching standoff is positioned at described filter metal shell.

The utility model according to the filter product actual conditions, the employing terminal filter is integrated, the input and output copper bar is integrated, the output copper bar is dislocatedly distributed, greatly simplified the production of product when reducing required installing space, omnidistance without soldering, improved widely the reliability of product when reducing production costs.

The utility model has the advantages that:

1, adopt that terminal, filter are integrated realizes miniaturization, cost and be easy to the client and install;

2, the input and output copper bar is integrated, without extra switching part, connects the input and output copper bar, can realize the installation of filtering device by Special compression mechanism, and whole process, without soldering, not only reduces costs, and reliability also improves greatly;

3, the copper bar output is dislocatedly distributed, and not only in filter inside, makes the electric capacity diagonal angle distribute, and takes full advantage of space, and parameter maximizes, and has increased to greatest extent the distance between two copper bars, and fail safe has also facilitated output end wiring when improving.

The accompanying drawing explanation

The schematic appearance of the integrated feedthrough Electromagnetic interference filter of a kind of miniaturization integrated terminal that Fig. 1 provides for the utility model;

The internal structure schematic diagram that Fig. 2 is input terminal;

The schematic internal view that Fig. 3 is the filter metal shell.

Embodiment

For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.

As shown in Figure 1, the integrated feedthrough Electromagnetic interference filter of a kind of novel small size integrated terminal that the utility model provides is comprised of: input terminal 1, conducting foam 2, filter metal shell 3 and the large parts of output copper bar 4 four.

In conjunction with Fig. 2, input terminal 1 material of main part is engineering plastics, comprises plastic casing, and wiring end cover 1.2 is arranged on the top of plastic casing by mounting screw 1.1, at plastic casing, screw assemblies 1.3 and two terminals input copper bar 1.4 for wiring is arranged.Two terminals input copper bars 1.4, by the plastic bar physical isolation, are guaranteed safety.Terminals are provided with the countersunk head installing hole and bayonet socket is installed for filter.

Conducting foam 2 is bonded on the installed surface of filter metal shell 3, guarantees the filter installation afterwards and custom system metal installed surface good contact, the isolation high-frequency interferencing signal.

Filter metal shell 3 and client's metal installed surface good contact, enclosure is equipped with filter circuit various high-frequency interferencing signals is imported to the earth.

In conjunction with Fig. 3, feed-through capacitor 3.1, two output copper bars 4 are installed in filter metal shell 3 and insert respectively in feed-through capacitor 3.1 separately, output copper bar 4 is the integrated design with corresponding input copper bar 1.4, and two output copper bars 4 are dislocatedly distributed.3.1 of feed-through capacitors are fixed in filter metal shell 3 by hold-down mechanism.This hold-down mechanism comprises the insulating press boards 3.2 that is pressed in described feed-through capacitor 3.1 tops, be provided with conductive rubber 3.4 between feed-through capacitor 3.1 tops and insulating press boards 3.2, be provided with in the bight of insulating press boards 3.2 and compress with screw 3.3, each compression penetrates in self-clinching standoff 3.5 separately with screw 3.3, and self-clinching standoff 3.5 is positioned at described filter metal shell 3.

Output copper bar 4 and 1.4 integrated designs of terminals input copper bar, improve reliability.And the output copper bar is dislocatedly distributed, and increases to greatest extent the distance between two copper bars, guarantee that output end wiring is convenient, safety.

During work, electromagnetic interference signal in electrical network enters filter by power line and input terminal 1, after filter suppresses decay, the electromagnetic interference signal level energy that enters electronic product by output copper bar 4 quite a little less than, can not affect and disturb the normal operation of electronic product, play the safeguard protection effect; Equally; the electromagnetic interference signal produced when electronic product works; enter filter through output copper bar 4; after suppressing decay by filter; through input terminal 1 enter electromagnetic interference signal level energy in electrical network quite a little less than; can not affect and pollute electrical network, play the effect of protection and purification electrical network.

Claims

1. the integrated feedthrough Electromagnetic interference filter of miniaturization integrated terminal, be provided with the input terminal (1) of terminals input copper bars (1.4) in comprising, be bonded with conducting foam (2) on the filter metal shell installed surface of input terminal (1), filter metal shell (3) is located on conducting foam (2), be provided with feed-through capacitor (3.1) in filter metal shell (3), two output copper bars (4) insert respectively in feed-through capacitor (3.1) separately, it is characterized in that: output copper bar (4) is integrated with corresponding input copper bar (1.4), two output copper bars (4) are dislocatedly distributed, feed-through capacitor (3.1) is fixed in filter metal shell (3) by hold-down mechanism.

2. the integrated feedthrough Electromagnetic interference filter of a kind of miniaturization integrated terminal as claimed in claim 1, it is characterized in that: described input terminal (1) comprises plastic casing, wiring end cover (1.2) is located at the top of plastic casing by mounting screw (1.1), be provided with screw assemblies for wiring (1.3) and terminals input copper bar (1.4) in plastic casing.

3. the integrated feedthrough Electromagnetic interference filter of a kind of miniaturization integrated terminal as claimed in claim 1, it is characterized in that: described hold-down mechanism comprises the insulating press boards (3.2) that is pressed in described feed-through capacitor (3.1) top, be provided with conductive rubber (3.4) between feed-through capacitor (3.1) top and insulating press boards (3.2), be provided with in the bight of insulating press boards (3.2) and compress with screw (3.3), each compression penetrates in self-clinching standoff (3.5) separately with screw (3.3), and self-clinching standoff (3.5) is positioned at described filter metal shell (3).