CN2896591Y

CN2896591Y - Structure of preventing electromagnetic interference for 1394-type electronic connector

Info

Publication number: CN2896591Y
Application number: CN 200620002047
Authority: CN
Inventors: 黄钦雄; 陈宏明; 张宏州
Original assignee: Joinsoon Electronic Manufacturing Co Ltd
Current assignee: DONGGUAN JOINSOON ELECTRONICS Manufacturing Co Ltd
Priority date: 2006-02-06
Filing date: 2006-02-06
Publication date: 2007-05-02
Anticipated expiration: 2016-02-06

Abstract

A 1394-type electronic adapter with anti-electromagnetic interference structure contains a terminal housing, embedded with a plurality of terminals. Wherein, the terminal housing is lock-jointed with a housing, whose rear terminal closely grips a signal wire. The peripheral housing is surrounded by an external metal housing, on which at least one elastic strip is formed, to enable each elastic strip to flexibly attach to a metal housing of the socket when the adapter inserts into the corresponding socket, thereby eliminating the electromagnetic wave produced by the metal housing of the adapter to connect with the grounding circuit after conducting to the metal housing of the socket. The utility model enables the electromagnetic wave that is produced by the metal housing of the adapter to eliminate by the grounding circuit which is connected with the metal housing of the socket, thereby improving the quality of the signal transmission of the adapter.

Description

The electric power connector of 1394 types prevent electromagnetic interference structure

Technical field

The utility model relates to a kind of electromagnetic interference structure that prevents, relate in particular to the electromagnetism electric wave that a kind of metal shell body that makes connector is responded to, the earthed circuit ground connection that is connected through the socket metal shell is eliminated, thus improve connector the signal transmission quality 1394 types electric power connector prevent electromagnetic interference structure.

Background technology

Be applied to 1394 type connectors of electric signal transmission at present, as shown in Figure 6, contain a terminal body 81, be equipped with a plurality of terminals in this terminal body 81, these terminal body 81 peripheral jacket one inner housings 82, the rear end of this inner housing 82 inserts and puts a lead 83, and the periphery of this inner housing 82 wears an outer plastic casing 84.After said modules was finished in assembling, back segment outer rim of plastic casing 84 outside this coated a layer insulating 85 again, and finishes the making of this connector.The leading portion of this connector is to be inserted in the slotting cave 862 that is made of a shell body 861 on the corresponding socket 86 on using, and 861 of the inner housing 82 of this connector and the shell bodies of socket 86 are this outer plastic casing 84.Though the inner housing 82 of this connector is to adopt metal material with the shell body 862 of socket 86, effect with shield electromagnetic interference, but this is useful when the transmission lower frequency is following as 800MHz just, but the signal transmission frequency is along with the lifting of technology now, often its frequency reaches 1.6GHz, even reach more than the 3.2GHz, at this moment, if only with the reduction of above-mentioned existing connector, the structure of elimination electromagnetic interference, promptly enclose in the structure of terminal body 81 peripheries, then only can reduce the electromagnetic interference of part with an inner housing 82 frames.When transmission frequency promotes again, its effect that reduces electromagnetic interference can't promote thereupon, makes the existing structure that reduces, eliminates electromagnetic interference, when being applied to the high-frequency signals transmission, and can't obtain desirable reduction, elimination electromagnetic interference efficient and effect, necessity of improvement is arranged in fact.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the defective that prior art exists, and provide a kind of 1394 types electric power connector prevent electromagnetic interference structure, the electromagnetism electric wave that it is responded to the metal shell body of connector, eliminate through the earthed circuit ground connection that the socket metal shell is connected, thus the signal transmission quality of raising connector.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of electric power connector of 1394 types prevent electromagnetic interference structure, this connector contains a terminal body, set a plurality of terminals, this terminal body is snapped with a housing outward, a signal line is gripped in the rear end of this housing, it is characterized in that: the peripheral ground snapping one metal shell body that surrounds of this housing, form at least one shell fragment on this metal shell body, when making this connector insert in the corresponding socket, each shell fragment flexibly is close on the metal shell of this socket, the electromagnetism electric wave that the metal shell body of connector is responded to, the earthed circuit ground connection that metal shell connected that conducts to socket is eliminated.

The electric power connector of aforementioned 1394 types prevent electromagnetic interference structure, wherein the metal shell body is a frame shaped, its front end ora terminalis is the radially curved stopper that is provided with, for the housing leading edge that is resisted against this connector.

The electric power connector of aforementioned 1394 types prevent electromagnetic interference structure, wherein be equipped with button hole on the metal shell body, for the corresponding button hook of the described housing of buckle accordingly, make described metal shell body be closely buckled in described housing periphery.

The electric power connector of aforementioned 1394 types prevent electromagnetic interference structure, wherein the metal shell body is to be concaved with a plurality of recesses, for being cross-placed on the described housing, makes the contour dimension of described metal shell body meet the standard of IEEE 1394.

The electric power connector of aforementioned 1394 types prevent electromagnetic interference structure, wherein be formed with overlap on the metal shell body, to be positioned at the shell fragment position on its metal shell corresponding to described socket, when making connector insert in the described socket, socket is positioned at the shell fragment on the metal shell, and elasticity presses on the overlap of metal shell body accordingly.

The beneficial effects of the utility model are that the electromagnetism electric wave that it is responded to the metal shell body of connector is eliminated through the earthed circuit ground connection that the socket metal shell is connected, thereby improves the signal transmission quality of connector.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is an exploded structural representation of the present utility model.

Fig. 2 is a combining structure schematic diagram of the present utility model.

Fig. 3 is the schematic diagram of the utility model connector and the separated attitude of socket.

Fig. 4 is that connector shown in the utility model inserts the schematic diagram in the socket.

Fig. 5 is the partial sectional view of 5-5 direction shown in Figure 4.

Fig. 6 is the schematic diagram of prior art 1394 type connectors and the separated attitude of socket.

The number in the figure explanation:

100 connectors, 10 terminal body, 11 terminals

20 housing 20a, the first housing 20b, second housing

21 button hooks, 30 signal line, 40 metal shell bodies

41 shell fragments, 42 stoppers, 43 button holes

44 ones 45 overlap 50 sockets

51 metal shells, 511 shell fragments, 60 insulating barriers

81 terminal body, 82 inner housings, 83 leads

84 outer plastic casing 85 insulating barriers 86 sockets

861 shell bodies 862 are inserted the cave

Embodiment

See also Fig. 1 to shown in Figure 5, the utility model be a kind of 1394 types electric power connector prevent electromagnetic interference structure, this connector 100, comprise: a terminal body 10, set a plurality of terminals 11, outside this terminal body 10, be to be snapped with a housing 20, a signal line 30 is gripped in the rear end of this housing 20, it is characterized in that: at these housing 20 peripheral ground snapping one metal shell bodies 40 that surround, and on this metal shell body 40, forming at least one shell fragment 41, when making this connector 100 insert in the corresponding socket 50, each shell fragment 41 is flexibly to be close on the metal shell 51 of this socket 50, with the electromagnetism electric wave that will be responded to, eliminate through the earthed circuit ground connection that the metal shell 51 of socket 50 is connected,, improve the signal transmission quality of connector 100 effectively to prevent electromagnetic interference.

The above-mentioned outer housing 20 of terminal body 10 that is buckled in can by the first housing 20a and second housing 20b be involutory forms, with this terminal body 10 of clip; Because this terminal body 10 and housing 20 structures are not technical characterictic of the present utility model, so the utility model does not limit the structure or the shape of this terminal body 10, housing 20.

Connector 100 of the present utility model, wherein this metal shell body 40 is one-body molded by the single metal plate material, be a frame shaped, at its front end ora terminalis, be radially curvedly to be provided with stopper 42, with housing 20 leading edges that are resisted against this connector 100, with block resistance, locate this housing 20, and after assembling is finished, coat a layer insulating 60 in the back segment outer rim of this metal shell body 40.In addition, on this metal shell body 40, be to be equipped with button hole 43, with the button hook 21 that is snapped in this housing 20 accordingly, make this metal shell body 40 be closely buckled in this housing 20 peripheries.

The electric power connector of the utility model 1394 types prevent electromagnetic interference structure, be to be concaved with a plurality of recesses 44 wherein at this metal shell body 40, to be cross-placed on this housing 20, make the contour dimension of this metal shell body 40 meet the standard of IEEE 1394.

The utility model is on this metal shell body 40, be formed with overlap 45, to be positioned at shell fragment 511 positions on its metal shell 51 corresponding to this socket 50, like this, when this connector 100 inserts in this socket 50, socket 50 be positioned on the metal shell 51 shell fragment 511 just accordingly elasticity press on the overlap 45 of metal shell body 40, make the utility model except the shell fragment on metal shell body 40 41 flexibly with the metal shell 40 of socket 50 contacts, shell fragment 511 elasticity that also can make socket 50 be positioned at metal shell 51 are pressed against on the metal shell body 40.

The main architectural feature of the utility model is in housing 20 peripheries of this connector 100 outside terminal body 10, frame exclosure snapping one metal shell body 40, flexiblely on this metal shell body 40 be provided with at least one shell fragment 42, connector 100 of the present utility model, after inserting a corresponding socket 50, the outermost layer of this connector 100, it is metal shell body 40, can overlap really with the metal shell 51 of this socket 50, the electromagnetism electric wave that this metal shell body 40 is responded to, can eliminate through the earthed circuit ground connection that socket 50 is connected, to improve the signal transmission quality of this connector.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

The electric power connector of a type prevent electromagnetic interference structure, this connector contains a terminal body, sets a plurality of terminals, this terminal body is snapped with a housing outward, a signal line is gripped in the rear end of this housing, it is characterized in that:

The peripheral ground snapping one metal shell body that surrounds of this housing forms at least one shell fragment on this metal shell body, when making this connector insert in the corresponding socket, each shell fragment flexibly is close on the metal shell of this socket.
2. according to the electromagnetic interference structure that prevents of the electric power connector of described 1394 types of claim 1, it is characterized in that described metal shell body is a frame shaped, its front end ora terminalis is the radially curved stopper that is provided with, for the housing leading edge that is resisted against this connector.
3. according to the electromagnetic interference structure that prevents of the electric power connector of described 1394 types of claim 1, it is characterized in that being equipped with button hole on the described metal shell body, supply the corresponding button hook of the described housing of buckle accordingly, make described metal shell body be closely buckled in described housing periphery.
4. according to the electromagnetic interference structure that prevents of the electric power connector of described 1394 types of claim 1, it is characterized in that described metal shell body, be to be concaved with a plurality of recesses,, make the contour dimension of described metal shell body meet the standard of IEEE 1394 for being cross-placed on the described housing.
5. according to the electromagnetic interference structure that prevents of the electric power connector of described 1394 types of claim 1, it is characterized in that being formed with overlap on the described metal shell body, to be positioned at the shell fragment position on its metal shell corresponding to described socket, when making connector insert in the described socket, socket is positioned at the shell fragment on the metal shell, and elasticity presses on the overlap of metal shell body accordingly.