The socket electric connector of tool masking device
The utility model relates to a kind of electric connector, refer to especially a kind of can prevent electromagnetic interference really and reduce cost, the socket electric connector of simple fabrication schedule.
Socket electric connector (audio connector or phone connector) is located on the circuit board and is exposed the computer chassis outside so that the connection of sound equipment signal to be provided.Existing socket electric connector is shown in Fig. 5,6, and this socket electric connector 9 includes insulation shell 91, some contact chips 92, earth terminal 93 and covers sheath body 94; This insulation shell 91 is the connection-pegs 911 that protrude out a tool spliced eye 912, and in addition, insulation shell 91 is provided with in a side of connection-peg 911 and runs through the containing hole 913 of insulation shell 91 in order to be embedded earth terminal 93.These some contact chips 92 are to be located in the insulation shell 91, and have the welding foot 921 that protrudes out insulation shell 91, in order to be welded on the circuit board.This earth terminal 93 is the containing holes 913 that are embedded at insulation shell 91, and the one end has protruded out welding foot 931, in order to be welded on the circuit board.This covers sheath body 94 and includes one and coat the sheath body sheet 941 and two compressing tablets 942,943 of connection-peg 911, and borrows this compressing tablet 942,943 to press to touch in earth terminal 93 and two-phase connects, so as to preventing electromagnetic interference (EMI).Above-mentioned prior art socket electric connector 9 is lower than the surface of insulation shell 91 owing to earth terminal 93 and the contact point that covers valve jacket 94, make that both contact difficultly earth terminal 93 with covering valve jacket 94, and often have because of loose contact and cause the situation that prevents that electromagnetic interference function lost efficacy.Moreover the assembling of covering valve jacket 94 is difficult for, and must cooperate specific tool post forming, so that compressing tablet 942,943 pressures are sandwiched in the two ends of earth terminal 93, so relatively will increase the loaded down with trivial details of manufacturing cost and assembling.
Main purpose of the present utility model is: a kind of socket electric connector that prevents electromagnetic interference really that has is provided, and it can make the electromagnetism noise around the socket electric connector be got rid of rapidly through shading member, to guarantee the quality of transmission signal.
A purpose more of the present utility model is: a kind of socket electric connector with assembling facility and better quality is provided, its shading member needn't utilize other specific tools when being assembled in insulation shell, and can direct sheathed combination, its assembly program is simplified rapidly, and can reduce fraction defective and lifting quality that the socket electric connector is made.
Another purpose of the present utility model is: a kind of masking device that contacts with computer chassis that has is provided, and this shading member has the shell fragment that protrudes out and contact with computer chassis, and makes the function of socket electric connector eliminating electromagnetism noise rapid more, effective really.
Principal character of the present utility model is: the insulation shell of this socket electric connector is provided with a shading member, the connection-peg corresponding position of this shading member and socket electric connector is provided with the grounding elastic part and the pressure that protrude out and touches shell fragment, and borrow this grounding elastic part to contact with computer chassis, press simultaneously and touch shell fragment and press and touch in the earth terminal of socket electric connector, socket electric connector electromagnetism noise is on every side got rid of, to guarantee the quality of transmission signal rapidly through shading member.
The utility model is compared with prior art and is had the following advantages:
This shading member has a pressure contravention to earth terminal contact direction extension bending, just connect mutually with earth terminal after borrowing this pressure contravention can make shading member be located at insulation shell, and the location moulding that needn't use other specific tools, to reduce assembly cost and to simplify processing procedure.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a three-dimensional exploded view of the present utility model.
Fig. 2 is a three-dimensional combination figure of the present utility model.
Fig. 3 is the cutaway view along Fig. 2 III-III hatching direction gained.
Fig. 4 is the end view of the utility model and casing butt.
Fig. 5 is the stereogram of prior art socket electric connector.
Fig. 6 is the three-dimensional exploded view with respect to Fig. 5 other direction.
See also Fig. 1, Fig. 3, the utility model 1 includes insulation shell 2, some contact chips 3, earth terminal 4 and shading member 5, this insulation shell 2 is slightly to be a rectangular body, it has protruded out a connection-peg 21, be provided with a spliced eye 22 in this connection-peg 21, use for the butt joint of banjo connector and plant (not shown), in addition, insulation shell 2 is provided with a through hole that runs through 23 in order to bearing earth terminal 4, and protrudes out fixture block 24 (appearance aftermentioned) in order to the blocking shading member in the side of insulation shell 2; These some contact chips 3 are to be embedded in the insulation shell 2, and the electric connection when planting with the banjo connector touches (not shown), and it has also protruded out contact feet 31, borrow this contact feet 31 to weld with circuit board; This earth terminal 4 is the through holes 23 that are the bent plate shape and are embedded at insulation shell 2, it includes one and presses the portion 41 that touches, interference part 42 and end pin 43, wherein, this pressure is touched portion 41 and is a curved lamellar body, touch (appearance aftermentioned) in order to the pressure that makes things convenient for shading member 5, and this interference part 42 is to be protruding thorn demihull shape to be fixed in the corresponding position (not shown) of insulation shell 2 in order to interference, again, this end pin 43 is to protrude out insulation shell 2, so as to welding with circuit board; This shading member 5 is the metal lamellar bodies that slightly are a shape, connection-peg 21 directions of its corresponding insulation shell 2 are to extend to be provided with to press to touch shell fragment 51 and grounding elastic part 52, wherein, this pressure is touched shell fragment 51 and is provided with toward the pressure of earth terminal locality bending and touches curved surface 511, touch portion 41 so as to compressing the pressure that is contacted with earth terminal 4, lack portion 512 and press contact 51 and 5 of shading members to be provided with, so that press contact 51 to have elasticity; This contact flat spring 52 is to be a knee-piece shape, is used for contacting at computer chassis 6 (as shown in Figure 4) after the assembling, and in addition, the side of shading member 5 is provided with draw-in groove 53, in order to fixture block 24 clamping mutually of insulation shell 2.
See also Fig. 2, Fig. 4, when shading member 5 clampings are coated on insulation shell 2, the pressure of shading member 5 is touched knee-piece 51, and to stretch into insulation shell 2 just inboard and compress the pressure that is contacted with earth terminal 4 and touch portion 41, contact flat spring 52 then elasticity is connected to computer chassis 6, make the electromagnetism noise around the socket electric connector to discharge rapidly, reach the function that prevents electromagnetic interference by means of the setting of shading member really via the contact of shading member 5 and casing 6.