CN1132279C

CN1132279C - Socket with shield

Info

Publication number: CN1132279C
Application number: CN99103157A
Authority: CN
Inventors: 林政德
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 1999-02-26
Filing date: 1999-02-26
Publication date: 2003-12-24
Anticipated expiration: 2019-02-26
Also published as: CN1264938A

Abstract

The present invention relates to a socket provided with a shield. The present invention comprises the matching end (13), an insulating frame (10) which is connected with an auxiliary maching socket, a spring part (22) for being connected with a shield plate of the matching socket, and a ground part (26, 27) which extends from a second shield plate, wherein a plurality of terminals are arranged on the frame. A first shield plate (11) which is made of high elastic materials is arranged on the frame. A second shield plate (12) which is made of a high electric conducting material is arranged on the frame, and is connected with the first shield plate (11).

Description

The socket of band shielding

Usually, the present invention relates to a kind of socket technology, particularly the socket with discrepancy of prevention electromagnetism and radio frequency interference of band shielding.

Circuit has usually prevent the electromagnetic interference (EMI) that emits and the protective device of radio frequency interference (RFI) from system.At present, though EMI and RFI usually exchange use, EMI makes the energy that contains ubiquitous in electromagnetic spectrum; RFI is limited to disturb in radio communication frequency bands all the time.The EMI energy can produce internal system and outside.In system, outside EMI energy can EVAC (Evacuation Network Computer Model) in the operation of electric equipment, and inner EMI energy can produce " cross-talk " and " noise " and the propagation of the data that lead to errors.

Because the terminal of electrical equipment and cable have a large amount of contact surfaces and opening, socket especially is subject to the destruction from the EMI energy.The socket of electricity commonly used contains an Insulating frame that a plurality of conductive terminals are installed.Framework can have anterior mating part.For the damage that prevents that socket from being caused by the EMI energy, barricade is round the framework of insulation, mating part especially wherein.Above-mentioned barricade usually forms with the compacting of conduction sheet metal material.The book steel board is compacting earlier, is shaped then or is folded into jack housing.

A difficult problem that designs this socket barricade is, barricade has different effects in different socket applications, and the material of these effects and barricade may be incongruent.For example barricade can have spring section, such as the spring thin slice of cantilever, is used to connect the barricade of auxiliary cooperation socket.These spring thin slices preferably have high resiliency or elastic force, so that they set up good cooperation with the barricade of the cooperation socket of assisting.For example, can provide the quality material that is used for barricade of high-tension can be stainless steel.But stainless steel is relatively costly.For the minimizing expense, can select to electroplate phosphor bronze, but this material can not provide stainless resilience force.

In addition, this barricade usually uses on the socket of installing on the printed circuit board (PCB), and barricade can have one or more pin, is used for the earthed circuit on the connecting plate.Socket can be installed in the cinclides in the dividing plate, for example: base plate, and also barricade also can have around cinclides and connects the flange that base plate stretches out.Therefore, barricade should have high conductivity, and stainless steel material is not a best choice for grounding function, and it is more suitable to electroplate the phosphor bronze material.

The present invention has solved above problem according to above-mentioned different intention by the multicomponent barricade that different materials is provided.

Therefore, one object of the present invention provides a kind of socket new, improved band shielding.

In an embodiment of the present invention, socket comprises an insulation crust with the preceding abutting end that docks with a mate-assist socket.Many terminals are installed on the shell and comprise the contact portion that is used for and cooperates the suitable terminal of socket to be connected.First barricade of first kind of material is installed in the shell front portion at least, and comprises the spring section that at least one is used for and cooperates the barricade of socket to combine.Secondly, the secondary shielding plate of second kind of material is installed in the rear portion of shell and preceding barricade at least.

As disclosed here, first barricade comprises that at least one preceding abutting end at shell is used to receive the socket aperture that cooperates socket.The spring section of first barricade is a cantilever type spring thin slice that enters socket aperture.First barricade by such as stainless steel or similarly highly elastic material make, thereby make the powerful barricade that cooperates socket that connects of spring thin slice.First barricade can comprise that also at least one to the stop flange that stretch out the outside, is used to connect the side of second barricade.

When mounting receptacle, second barricade comprises the flange that at least one stretches out to the outside, but is used to connect the dividing plate of the cinclides that is close to mounting receptacle.Second barricade also comprises a leg that is used to connect circuit on the printed circuit board (PCB) at least.Second barricade made by the material that has high conductivity, be easy to weld, and as the bronze plating material, is connected thereby make the flange stretch out and leg and dividing plate and circuit board set up good ground connection.

In addition, the present invention also comprises a shell portion with the contact site that stretches into socket aperture and terminal forward and platform placed on it.Shell portion comprises that at least one its outer surface is used to receive the part of first barricade, first barricade is remained on the recess of shell portion.As disclosed here, the part of the recess of shell portion and first barricade is the complementation of T shape.

With reference to accompanying drawing, can be so that other purpose of the present invention by the following detailed description, feature and advantage are clearer.

In appended claims, the characteristics of the present invention that it is believed that have been described in detail with novelty.Can understand the present invention and purpose thereof well in conjunction with the accompanying drawings with reference to following description, represent corresponding parts with reference number in the accompanying drawing, wherein:

Fig. 1 is with the part perspective view of shielding socket according to prior art;

Fig. 2 is the partial view of shell that the prior art socket of Fig. 1 is installed;

Fig. 3 is the front view according to band shielding socket of the present invention;

The view similar that the exterior shield plate of Fig. 4 shown in being removed from socket to Fig. 3;

Fig. 5 is the part perspective view of socket of the present invention;

Fig. 6 is the partial view that the shell of socket of the present invention is installed.

Fig. 1 is at first seen in narration with reference to the accompanying drawings, and a kind of socket with shielding according to prior art as shown in the figure comprises barricade 3 behind 1, one preceding barricade 2 of Insulating frame and.Framework is to form by plastic material is molded, and the front and back barricade is to be formed by the compacting of sheet metal material.

The preceding mating surface 1a of framework has a pair of insertion groove 4.Many terminals are installed in the framework, and terminal has afterbody part 5, the lower surface 1b place that it relies on framework, be used for inserting hole suitable on the printed circuit board (PCB) and be connected by welding to plate and/or the hole on suitable circuit.Terminal has the contact portion (not shown) of exposing 4 li of insertion grooves, and the suitable terminal that this contact portion is used on the mate-assist socket with insertion groove links to each other.

The anterior metal shielding board 2 of the socket of prior art and rear portion metal shielding board 3 center on framework 1 in fact, thereby provide EMI protection to socket.Barricade is by a pair of back barricade 3 offsides of being positioned at, and the gib tongue 8 in the gib hole 9 of barricade 2 offsides pins jointly before being entrapped in

The anterior metal shielding board 2 of the socket of prior art comprises a pair of preceding ground connection thin slice 6 that forms in the front panel 2a outside compacting of barricade, and a pair of ground connection leg 7, their rely on the sidewall 2b of barricade, insert hole suitable on the printed circuit board (PCB) and be connected by welding to circuit board and/or the hole in suitable ground path on.Anterior barricade 2 has a pair of and 4 alignment of framework 1 insertion groove, is used to receive the socket aperture 2c of mate-assist socket.A plurality of cantilever thin slice 2d from the edge of socket aperture 2c stretch out backward and insertion groove 4 in the recess 4a that stops engage, thereby keep the preceding barricade of framework 1.

Fig. 1 prior art socket can be installed in " A " obturator shown in Figure 2, and it can be a counter body.Cooperate socket receiver hole A1 quilt to separate with the transverse belt A2 that the ground connection thin slice 6 of the preceding barricade 2 of existing socket engages.Hole A1 aligns with the socket aperture 2c of anterior barricade 2 and the insertion groove 4 of jack frame 1.

Above-mentioned description to Fig. 1 and the existing socket of Fig. 2 has exemplified a difficult problem of describing in background technology.The thin slice 2d that particularly expects barricade 2 is useful on the high-tension that connects cooperation socket barricade.Can provide high-tension by barricade 2 such as stainless steel material production.But stainless steel costs an arm and a leg.In addition, the ground connection thin slice 6 and the ground connection leg 7 of barricade 2 provide the high-effective conductive performance, so that barricade has the good earth effect to printed circuit board (PCB) and/or framework or casing " A ".For grounding function, stainless steel is not only electric conducting material.On the other hand, if be used for barricade such as the suitable electric conducting material of bronze plating, this material then can not provide high-tension to the thin slice 2d that connects the barricade that cooperates socket.This defective or a difficult problem can solve by the following socket of the present invention that will narrate.

With reference to figure 3-5, the socket of band shielding of the present invention comprises Insulating frame 10, one front portions or internal shield plate 11, one rear portions or exterior shield plate 12.Socket is fit to be installed on the printed circuit board (PCB), such as the mate-assist socket that is used to connect surrounding devices in computer.

The insulating material compacting of framework 10 usefulness such as plastics or similar material forms, and comprises pair of parallel plate or terminal platform 13.A plurality of terminals 14 are installed in the framework, and comprise dependence afterbody 14a therewith, in order to insert in the hole suitable on the printed circuit board (PCB) and to be connected by welding on the suitable ground path in circuit board and/or the hole.Terminal has on the base of terminal platform 13 juxtaposed, the contact portion 14b (being shown on the platform) that is connected with suitable terminal on the cooperation socket.One baffle wall 15 and keeps equi-spaced apart with platform between terminal platform 13.To the bottom platform 16 of stretching out previously be positioned at terminal platform 13 below.The a pair of groove of inlaying 19 constitutes at the bottom of platform 16 downside.At last, the top of framework 10 and side are recessed at label 17 places, and comprise T type groove 18, so that the internal shield plate to be installed on framework easily.

Inner barricade 11 is by forming such as stainless high resiliency sheet metal material compacting.Barricade has a banded front end face 20 that separates a pair of socket aperture.A plurality of spring thin slices 22 are suppressed outside the sidewall of barricade and are formed, and stretch into socket aperture 21 so that the high-tension that provides by the barricade of being made by stainless steel material and being connected with the barricade that cooperates socket.A plurality of stop flange 23 are adjacent by the leading edge 12a (Fig. 5) of the anterior protruding and exterior shield plate 12 of internal shield plate.Install on the notched region 17 of framework 10 at the rear portion of barricade 11, and the internal shield plate has three T type parts 24, is used in the T of framework type recess 18 location, thereby makes the internal shield plate remain in the framework.At last, internal shield plate 11 has to suppress outside its each relative side and forms and outwardly directed gib contact pin 25, is used for fixing on the exterior shield plate 12 on the socket, and this will be described below.

Exterior shield plate 12 is box types, is installed in as shown in Figure 3 on framework 10 and the internal shield plate 11.The exterior shield plate has a plurality of ground connection legs 26, in order to insert in the hole suitable on the printed circuit board (PCB) and to be connected by welding on the suitable ground path in circuit board and/or the hole.One ground connection leg 27 is from the opposite side of exterior shield plate 12, and is protruding at its leading edge 12a place, but to connect dividing plate or the base plate adjacent to the centre bore of mounting receptacle, this will be described below.Each sidewall of exterior shield plate 12 comprises a gib cinclides 28, is used to connect the gib contact pin 25 of internal shield plate 11, thereby the exterior shield plate is fixed on internal shield plate and the framework.At last, the exterior shield plate comprises a plurality of inside straight shape nibs 29 that collude, and is used to slip into the installation groove 19 of platform 16 bottoms of framework, with the sidewall that prevents the exterior shield plate separately.Because the ground connection leg 26 and the ground connection flange 27 of exterior shield plate 12 preferably have good electrical conductivity, so the exterior shield plate is preferably by making such as the material of electroplating phosphor bronze.

Narration by the front by by making the internal shield plate such as stainless highly elastic material, can make the spring thin slice 22 of internal shield plate 11 as can be known, and top flange 23 and gib thin slice 25 have high-tension.Otherwise, because the exterior shield plate has used the material different with the internal shield plate, as: above-mentioned bronze plating material, the ground connection leg 26 and the ground connection flange 27 of outside barricade 12 have high conductivity.

Socket can be installed in the B1 place, hole of obturator B shown in Figure 6.Ground connection flange 27 is connected with dividing plate around hole B1, thereby makes barricade 11 and 12 be arranged in obturator B.Because ground connection flange 27 is protruding at leading edge portion 12a place from the opposite side of exterior shield plate 12, so hole B1 do not need the transverse belt A2 of the hole A1 of similar prior art, therefore and the hole of the obturator that cooperates of socket of the present invention more simple.

Obviously, under the situation that does not deviate from essence of the present invention and principal character, the present invention can comprise other form.Therefore embodiments of the invention can be thought explanation, rather than restriction, and the present invention also is not limited to described in the literary composition.

Claims

1. be with shielding socket for one kind, comprise:

One has the preceding Insulating frame (10) of abutting end (13) to be connected with a mate-assist socket;

Be installed in a plurality of terminals on the described framework, described terminal comprises the bonding part (14b) that is used to connect the suitable terminal that cooperates socket;

One is installed in a front portion of described framework at least by metal first barricade of high resiliency (11), and this first barricade includes at least one spring section (22) that is used to connect a barricade of described cooperation socket;

A secondary shielding plate (12) of being made by high conductive material is installed on the described framework (10), and extends at the rear portion of framework (10) and the rear portion of described first barricade (11).

2. band shielding socket according to claim 1 is characterized in that, described first barricade (11) comprises that a preceding abutting end at framework is used to connect the socket aperture (21) that cooperates socket.

3. band shielding socket according to claim 2 is characterized in that, the described spring section of described first barricade comprises a spring thin slice (22) that stretches into described socket aperture (21).

4. band shielding socket according to claim 2 is characterized in that, described framework (10) comprises a platform (13) that moves forward into described socket aperture (21), and the described contact portion (14b) of described terminal is also put on described platform.

5. band shielding socket according to claim 1 is characterized in that, described first barricade (11) comprises at least one stop flange of stretching out to the outside (23), is used to connect an edge (12a) of described secondary shielding plate (12).

6. band shielding socket according to claim 1 is characterized in that, described secondary shielding plate (12) comprises at least one flange that stretches out to the outside (27), is used to connect the dividing plate that vicinity can be installed a hole of described socket.

7. band shielding socket according to claim 1 is characterized in that, described secondary shielding plate (12) comprise one be used to be connected to a circuit-line on the printed circuit board (PCB) by pin (ground connection leg) (26).

8. band shielding socket according to claim 7 is characterized in that, described secondary shielding plate (12) is the made of welding with easily.

9. band shielding socket according to claim 1, it is characterized in that, described framework (10) comprises a recess (18) at the one outer surface, and this recess is used to connect the part (24) of first barricade (11), thereby described first barricade is remained on the described framework.

10. band shielding socket according to claim 9 is characterized in that, described recess (18) and described part (24) are complementary T type profiles.

11. band shielding socket according to claim 1 is characterized in that, described first barricade (11) is used the stainless steel manufacturing, and described secondary shielding plate (12) is made with bronze plating.