CN107658593A

CN107658593A - Electric connector

Info

Publication number: CN107658593A
Application number: CN201710706758.0A
Authority: CN
Inventors: 伍克化; 曾波
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2017-08-17
Filing date: 2017-08-17
Publication date: 2018-02-02
Anticipated expiration: 2037-08-17
Also published as: CN107658593B

Abstract

A kind of electric connector, including：One insulating body, the insulating body include a horizontal part extended forward and the vertical portion below the horizontal part；Multiple terminals, including multiple signal terminals and an at least ground terminal, each terminal has a horizontal arm and the vertical arm being downwardly extending from horizontal arm bending, and the horizontal arm is fixed on the horizontal part, and the vertical arm is fixed on the vertical portion；One metal-back, coats the horizontal part, and the metal-back forms an at least through hole through its surface；One ground strip, the outer metallic surface is installed on, the ground strip has an at least elastic arm, and the elastic arm enters in the metal-back horizontal arm for abutting the ground terminal through the through hole；One shielding case, the vertical portion is coated, the shielding case has an abutment arms, and the abutment arms abut the ground strip.

Description

Electric connector

Technical field

The present invention relates to a kind of electric connector, refers in particular to a kind of heightening type electric connector that can reduce electromagnetic interference.

Background technology

It is currently used in the electric connector of transmission high-frequency signal, electromagnetic interference would generally be produced between terminal, how to be solved Turn into the important topic of industry research with electromagnetic interference is reduced.For example, in the USB TYPE C connectors newly risen, including it is exhausted Edge body and two row's terminals being arranged in insulating body, often arrange terminal includes successively：Ground terminal, a pair of difference signal terminals For transmitting high-frequency signal, power supply terminal, reserved terminal, a pair of signal terminals, reserved terminal, power supply terminal, a pair of difference letters Number terminal is used to transmit high-frequency signal, ground terminal.Each terminal includes the horizontal arm being immobilizated in the insulating body And extend the vertical arm of insulating body from horizontal arm bending, the end of the vertical arm is used for being soldered to a circuit board.

Due to there is the differential signal end for transmitting high-frequency signal in this connector insulating body two rows terminal The horizontal arm of son, when in use, easily produces electromagnetic interference；The electric connector of heightening type especially is being commonly used In, the vertical arm also needs to lengthen, to ensure that the terminal is stably soldered to the circuit board and whole electric coupler component machine The balance of structure.However, after the extended length of the vertical arm, when high-frequency signal passes through the vertical arm, it is more prone to reveal Distortion, or even the transmittability for making the electric connector lose high-frequency signal.

Therefore, it is necessary to a kind of electric connector of improvement is designed, to overcome above mentioned problem.

The content of the invention

For background technology problem encountered, it is an object of the invention to provide one kind by metal-back, shielding case and Ground strip three turns on to form complete earth-return circuit to reduce the electric connector of electromagnetic interference.

To achieve the above object, the present invention uses following technological means：A kind of electric connector, including：One insulating body, institute Stating insulating body includes a horizontal part extended forward and the vertical portion below the horizontal part；Multiple terminals, bag Multiple signal terminals and at least a ground terminal are included, each terminal has a horizontal arm and bent from the horizontal arm downward Extend the vertical arm formed, the horizontal arm is fixed on the horizontal part, and the vertical arm is fixed on the vertical portion；One gold medal Belong to shell, coat the horizontal part, the metal-back forms an at least through hole through its surface；One ground strip, it is installed on the gold Belong to outer surface, the ground strip has an at least elastic arm, and the elastic arm enters in the metal-back through the through hole to be supported Connect the horizontal arm of the ground terminal；One shielding case, coats the vertical portion, and the shielding case has an abutment arms, institute State abutment arms and abut the ground strip；

Further, the ground strip is provided with an at least clasp arm, and the horizontal part corresponds to the through hole and is provided with a groove, the button Gripping arm enters the groove through the through hole, and the opposite sides of the clasp arm protrudes out to form a convex portion respectively, the convex portion With the inwall interference engagement of the groove, paste the ground strip and be fixed on the metal-back surface；

Further, the ground strip is stamped and formed out by a metallic plate, the plate of the plate face of the clasp arm perpendicular to the elastic arm Edge；

Further, the ground strip opens up an opening through its surface, and two sides relative from the opening are bent downwards respectively Extension forms a clasp arm, and a crossbeam connects the other two relative sides of the opening, two clasp arm positions In the both sides of the crossbeam；

Further, a fixed part of extension formation is tilted down forward from the back edge of the through hole, the fixed part is located at institute State in through hole and between the elastic arm and clasp arm and abut the horizontal part；

Further, the electric connector includes two ground strips, amplexiforms respectively in the upper surface of the metal-back and following table Face, the abutment arms abut the ground strip for pasting the metal-back lower surface；

Further, the abutment arms include a horizontally disposed connecting portion, and first bending inclination downwards is prolonged from the connecting portion The abutting part that horizontal forward extension is formed is stretched again, the abutting part abuts the ground strip；

Further, the connecting portion is higher than the metal-back lower surface；

Further, the shielding case has two abutment arms, and the ground strip has two elastic arms, two institutes Abutment arms are stated between two elastic arms；

Further, the shielding case has two abutment arms, and the ground strip has two elastic arms, described in two Abutment arms are between two elastic arms；

Further, multiple terminals are symmetrically immobilizated in the horizontal part in two rows, and the shielding case is provided with least one First shell fragment and at least one second shell fragment, the ground terminal arranged and the ground terminal of lower row are abutted respectively；

Further, first shell fragment abuts the vertical arm of the lower row ground terminal backward, and second shell fragment is forward The vertical arm of the ground terminal is arranged on abutting；

Further, the shielding case has an antetheca, extends the two side to be formed from the antetheca opposite sides, and from two institutes State sidewall edge and extend towards two rear walls to be formed, the plate face blanking of the antetheca is molded two first shell fragments, Mei Yisuo The lower edge for stating rear wall bends extension one second shell fragment of formation separately down.

Compared with prior art, the invention has the advantages that：

The metal-back coats the horizontal part, and the ground strip covers the metal-back surface, and the elastic arm is described in Through hole enters in the metal-back horizontal arm for abutting the ground terminal, and the shielding case coats the vertical arm, described to support Connect arm and abut the ground strip, so make the metal-back, the ground strip and the shielding case in the horizontal arm of the terminal And complete earth-return circuit is formd around the vertical arm, and this earth-return circuit is grounded company by the ground terminal Connect, reduce electromagnetic interference of the electric connector when transmitting high-frequency signal, improve the electric connector high frequency signal transmission Fidelity factor, the demand of the current electric connector high frequency signal transmission is adapted to.

【Brief description of the drawings】

Fig. 1 is the part isometric exploded view of electric connector of the present invention and the electric coupler component of another electric connector composition；

Fig. 2 is the three-dimensional exploded view of electric connector of the present invention；

Fig. 3 is electrical connector portions three-dimensional exploded view of the present invention；

Fig. 4 is the part isometric exploded view at another visual angle of electric connector of the present invention；

Fig. 5 is the three-dimensional combination figure in electric connector Fig. 4 visual angles of the present invention；

Fig. 6 is the stereogram that metal-back and insulating body are removed in electric connector Fig. 5 of the present invention；

Fig. 7 is corresponding side view in electric connector Fig. 6 of the present invention；

Fig. 8 is the three-dimensional combination figure of electric connector of the present invention and the electric coupler component of another electric connector composition；

Fig. 9 is along the sectional view of line A-A in Fig. 8.

The drawing reference numeral explanation of embodiment：

Main body 1	First host cavity 11	Second host cavity 12	Breach 121
				Recess 13	Boss 14	First electric connector 2	Insulating body 21
Horizontal part 211	Groove 2111	Vertical portion 212	First fixed block 2121
				Second fixed block 2122	Terminal 22	Ground terminal 201	Signal terminal 202
Horizontal arm 221	First extension 2211	Vertical arm 222	Second extension 2221
				Metal-back 23	Through hole 231	Fixed part 232	Ground strip 24
Elastic arm 241	Clasp arm 242	Convex portion 2421	Opening 243
				Crossbeam 244	Shielding case 25	Abutment arms 251	Connecting portion 2511
Abutting part 2512	First shell fragment 252	Second shell fragment 253	Antetheca 254
				Side wall 255	Rear wall 256	First shielding piece 26	Secondary shielding piece 27
Contact arm 271	Second electric connector 3	Preceding masking shell 4	Shell 5 is covered afterwards
				Circuit board 6

【Embodiment】

For ease of being better understood from the purpose of the present invention, structure, feature and effect etc., in conjunction with the drawings and specific embodiments The invention will be further described.

As shown in Fig. 1, Fig. 8 and Fig. 9, electric connector of the present invention and another electric connector collectively constitute an electric connector group Part, and the two is soldered to the same circuit board 6 jointly；For convenience of following description, electric connector of the present invention is defined as the first electricity Connector 2, another electric connector are the second electric connector 3.The electric coupler component includes a main body 1, and described first is electrically connected It is interior in setting up and down in the main body 1 to connect device 2 and second electric connector 3；Connect first electric connector 2 and described The preceding masking shell 4 of two electric connectors 3；And the rear masking shell 5 of the masking rear end of main body 1.In the present embodiment, first electricity Connector 2 is identical with the model of the second electric connector 3 and the two all meets USB-TYPE C transmission standard, certainly, at it In its embodiment, the transport-type of first electric connector 2 and second electric connector 3 can according to the actual requirements without Together, it is not limited herein.

As illustrated in figures 1 and 8, the main body 1 is provided with one first host cavity 11 and one second host cavity 12, and described first receives Cavity volume 11 is located at the top of second host cavity 12.First host cavity 11 houses first electric connector 2, and described First host cavity, 11 front and rear insertion.Second host cavity 12 houses second electric connector 3, and second host cavity 12 Lower section is provided with a breach 121 so that second electric connector 3 is welded on the circuit board 6.

Further, the front end of the side surface of the opposite sides of the main body 1 is provided with a recess 13, it is described before masking shell 4 with The recess 13, which coordinates, to be fixed, and cover shell 5 after described fastens the main body 1 from front to back.The lower section of main body 1 is provided with multiple convex Platform 14, it is resisted against the surface of the circuit board 6, makes the circuit board 6 is stable to support the main body 1.

As depicted in figs. 1 and 2, first electric connector 2 includes an insulating body 21, is immobilizated in the insulating body 21 Interior multiple terminals 22, the one first shielding secondary shielding piece 27 of piece 26 and one in the insulating body 21, described in cladding A metal-back 23 and a shielding case 25 for insulating body 21, and two be covered each by the upper and lower surface of metal-back 23 connect Ground piece 24；The metal-back 23 and the ground strip 24 are contained in first host cavity 11, and the shielding case 25 is contained in institute The rear end of insulating body 1 is stated, so that first electric connector 2 is fixed in the main body 1.

As shown in Figure 3 and Figure 4, the insulating body 21 extends forward a horizontal part 211 of formation including one, and is located at One vertical portion 212 of the lower section of horizontal part 211, upper and lower surface difference two grooves of recessed formation of the horizontal part 211 2111, the vertical portion 212 includes one first fixed block 2121 and one second fixed block 2122 assembled along the longitudinal direction.

Multiple terminals 22 in the horizontal part 211 in two rows in being symmetrical arranged, and terminal 22 is horizontal described in each row Include successively to arrangement：Ground terminal 201, a pair of difference signal terminals 202, power supply terminals（Non- label）, reserved terminal（Do not mark Number）, a pair of signal terminals 202, reserved terminal（Non- label）, power supply terminal（Non- label）, a pair of difference signal terminals 202, connect Ground terminal 201, the transmission standard for making first electric connector 2 meet USB-TYPE C.Each terminal 22 has a water Flat arm 221 and bend the vertical arm 222 that vertical extension is formed downwards from the horizontal arm 221, multiple horizontal arms 221 in Being set in the horizontal part 211 in two rows, multiple vertical arm 222 are set in fore-and-aft direction in two rows, further, on The vertical arm 222 that the bending extension of the horizontal arm 221 of row is formed is located at heel row and is immobilizated in second fixed block 2122, the vertical arm 222 that the horizontal arm 221 of lower row is bent to form is positioned at front-seat and be immobilizated in described first Fixed block 2121.The lateral margin of the horizontal arm 221 of each ground terminal 201 extends laterally to form one first extension 2211, First extension 2211 is revealed in the horizontal part 211, the vertical arm of the ground terminal 201 of each upper row 222 lateral margin extends to form one second extension 2221, and second extension 2221 is revealed in second fixed block 2122.

As shown in Figure 4 and Figure 5, the metal-back 23 coats the horizontal part 211, to isolate the high frequency of horizontal arm 221 The leakage of signal；Further, the metal-back 23 extends through corresponding four shapes of groove 2111 of its upper and lower surface Into four through holes 231, extension is tilted down forward from the back edge of each through hole 231 and forms a fixed part 232, four institutes State fixed part 232 to correspond in four through holes 231 respectively and abut the horizontal part 211 simultaneously, make the metal-back 23 are stably fixed on the insulating body 21.

As shown in Fig. 4, Fig. 5 and Fig. 7, the ground strip 24 is stamped and formed out by a metallic plate, and each ground strip 24 passes through Wear its surface and open up an opening 243, bending extension respectively from the opposite sides of the opening 243 forms a clasp arm 242, described Clasp arm 242 enters the groove 2111 through the through hole 231, the ground strip 24 is locked in the insulating body 21；Specifically, in the present embodiment, the opposite sides of the clasp arm 242 protrudes out to form a convex portion 2421, the convex portion respectively 2421 with the inwall of the groove 2111 extruding interference engagement, to realize the lock of the ground strip 24 and the insulating body 21 Button；In other embodiments, the locking mode of the clasp arm 242 and the groove 2111 is not construed as limiting, as long as the two can Stable locking.Further, the plate edge bending extension of each ground strip 24 forms two elastic arms 241, each described Elastic arm 241 is corresponding to abut first extension 2211 through a through hole 231, to realize the ground strip 24 With the conducting of the ground terminal 201.Preferably, the plate face of the clasp arm 242 perpendicular to the elastic arm 241 plate edge, Be advantageous to the overall structure stability of the stress of ground strip 24；In in the same through hole 231, the fixed part 232 is located at Between the elastic arm 241 and the clasp arm 242, increase the stress balance of integrated model.In the present embodiment, positioned at described A crossbeam 244 of the ground strip 24 of the lower section of metal-back 23 provided with 243 other opposite sides sides of the connection opening, two The clasp arm 242 is located at the opposite sides of crossbeam 244 respectively, adds the structural strength of the ground strip 24.Certainly, exist In other embodiments, upper and lower two ground strips 24 can all be provided with the crossbeam 244, not be limited herein.

As shown in Fig. 4, Fig. 6 and Fig. 7, the shielding case 25 has an antetheca 254, prolongs from the opposite sides of antetheca 254 The two side 255 to be formed is stretched, and two rear walls 256 are extended rearwardly to form from two edges of side wall 255, by the antetheca 254th, two 255 and two rear walls 256 of side wall coat first fixed block 2121 and second fixed block jointly 2122, and then make the electromagnetic interference of the maskable vertical arm 222 of the shielding case 25.Further, the plate face of the antetheca 254 Blanking is molded two the first shell fragments 252, and the lower edge of each rear wall 256 bends extension and forms one second shell fragment separately down 253, two first shell fragments 252 abut the vertical arm 222 of two ground terminals 201 of lower row respectively backward, Two second shell fragments 253 respectively forwardly abut two second extensions 2221, with this realize the shielding case 25 with The contact conducting of each ground terminal 201, improves the shielding case 25 and isolates the high frequency signal transmission of vertical arm 222 The ability of electromagnetic interference.

The top edge of the antetheca 254, which upwardly extends, is bent to form two abutment arms 251, while abuts and paste the metal The ground strip 24 of the lower surface of shell 23, the shielding case 25 is set to be connected with the ground strip 24；It is arranged such, just makes the screen Shell 25, the ground strip 24 and the metal-back 23 is covered to form around the horizontal arm 221 and the vertical arm 222 completely Earth-return circuit, and this earth-return circuit realizes multipoint earthing by each ground terminal 201.Further, two institutes Abutment arms 251 are stated to be located between two elastic arms 241 for amplexiforming ground strip 24 described in the lower surface of metal-back 23；It is described Abutment arms 251 include a horizontally disposed connecting portion 2511, and first bending tilts extension again downwards from the connecting portion 2511 The abutting part 2512 that horizontal forward extension is formed, the abutting part 2512 abut positioned at described in the lower section of metal-back 23 upwards The lower surface of ground strip 24；Preferably, the connecting portion 2511 is higher than the lower surface of the metal-back 23, increases the abutting The upward elastic force in portion 2512, the abutting power that the abutment arms 251 abut the ground strip 24 is improved, ensure that the shielding case 25th, the stability for the earth-return circuit that metal-back 23 and the ground strip 24 three is formed.

As shown in Figure 2 and Figure 6, the first shielding piece 26 is immobilizated in the horizontal part 211 and is located at two rows institute Between stating horizontal arm 221, the secondary shielding piece 27 is immobilizated in first fixed block 2121 and second fixed block 2122 Between and between vertical arm 222 described in front two rows, and the secondary shielding piece 27 bend forward extension formed two connect Contact arm 271, contact the first shielding piece 26, the shielding isolation for strengthening the first shielding piece 26 and institute's secondary shielding piece 27 are made With.

In summary, electric connector of the present invention has following beneficial effect：

（1）The metal-back 23 coats the horizontal part 211, and the ground strip 24 covers the surface of metal-back 23, the bullet Property arm 241 enter in the metal-back 23 horizontal arm 221 for abutting the ground terminal 201, the screen through the through hole 231 Cover shell 25 and coat the vertical arm 222, the abutment arms 251 abut the ground strip 24, so make the metal-back 23, described Ground strip 24 and the shielding case 25 form completely around the horizontal arm 221 of the terminal 22 and the vertical arm 222 Earth-return circuit, and this earth-return circuit is grounded connection by the ground terminal 201, reduces first electric connector 2 Electromagnetic interference when transmitting high-frequency signal, the fidelity factor of the high frequency signal transmission of the first electric connector 2 is improved, adapted to The demand of the current high frequency signal transmission of first electric connector 2.

（2）The plate face blanking of the antetheca 254 is molded two the first shell fragments 252, the lower edge difference of each rear wall 256 Bending extension downwards forms one second shell fragment 253, and two first shell fragments 252 abut respectively backward to be connect described in two of lower row The vertical arm 222 of ground terminal 201, two second shell fragments 253 respectively forwardly abut two second extensions 2221, with this realize the shielding case 25 contact with each ground terminal 201 turn on, improve the shielding case 25 every From the ability of the high frequency signal transmission electromagnetic interference of vertical arm 222.

（3）The abutment arms 251 include a horizontally disposed connecting portion 2511, and first downward from the connecting portion 2511 Bending tilts the extension abutting part 2512 that horizontal forward extension is formed again, and the abutting part 2512 abuts the ground strip upwards 24 lower surface；The connecting portion 2511 is higher than the lower surface of the metal-back 23, and it is upward to increase the abutting part 2512 Elastic force, the abutting power that the abutment arms 251 abut the ground strip 24 is improved, ensure that the shielding case 25, the metal The stability for the earth-return circuit that shell 23 and the three of the ground strip 24 are formed.

(4) plate face of the clasp arm 242 is perpendicular to the plate edge of the elastic arm 241, be advantageous to the ground strip 24 by The overall structure stability of power.

Detailed description above is only the explanation of the preferred embodiments of the invention, non-therefore the limitation present invention the scope of the claims, So all, with this creation specification and diagramatic content institute, equivalence techniques changes for it, is both contained in the scope of the claims of this creation It is interior.

Claims

A kind of 1. electric connector, it is characterised in that including：

One insulating body, the insulating body include the horizontal part that extends forward and one perpendicular below the horizontal part Straight portion；

Multiple terminals, including multiple signal terminals and an at least ground terminal, each terminal have a horizontal arm and from institutes The vertical arm that horizontal arm bending is downwardly extending is stated, the horizontal arm is fixed on the horizontal part, and the vertical arm is fixed In the vertical portion；

One metal-back, coats the horizontal part, and the metal-back forms an at least through hole through its surface；

One ground strip, the outer metallic surface is installed on, the ground strip has an at least elastic arm, and the elastic arm passes through institute Through hole is stated into the horizontal arm of the abutting ground terminal in the metal-back；

One shielding case, the vertical portion is coated, the shielding case has an abutment arms, and the abutment arms abut the ground strip.
2. electric connector as claimed in claim 1, it is characterised in that：The ground strip is provided with an at least clasp arm, the water Flat portion corresponds to the through hole and is provided with a groove, and the clasp arm enters the groove, the phase of the clasp arm through the through hole Both sides are protruded out respectively to form a convex portion, the convex portion and the inwall interference engagement of the groove, paste the ground strip solid Due to the metal-back surface.
3. electric connector as claimed in claim 2, it is characterised in that：The ground strip is stamped and formed out by a metallic plate, described Plate edge of the plate face of clasp arm perpendicular to the elastic arm.
4. electric connector as claimed in claim 2, it is characterised in that：The ground strip opens up an opening through its surface, from Two relative sides of the opening bend extension and form a clasp arm respectively, and a crossbeam connects the other phase of the opening To two sides, two clasp arms are located at the both sides of the crossbeam.
5. electric connector as claimed in claim 2, it is characterised in that：Extension is tilted down forward from the back edge of the through hole The fixed part formed, the fixed part is in the through hole and between the elastic arm and clasp arm and described in abutting Horizontal part.
6. electric connector as claimed in claim 1, it is characterised in that：The electric connector includes two ground strips, point Do not amplexiform and paste the described of the metal-back lower surface in the upper and lower surface of the metal-back, the abutment arms abutting and connect Ground piece.
7. electric connector as claimed in claim 1, it is characterised in that：The abutment arms include a horizontally disposed connecting portion, And the extension abutting part that horizontal forward extension is formed again is tilted from the connecting portion first bending downwards, the abutting part abuts The ground strip.
8. electric connector as claimed in claim 7, it is characterised in that：The connecting portion is higher than the metal-back lower surface.
9. electric connector as claimed in claim 1, it is characterised in that：The shielding case has two abutment arms, described Ground strip has two elastic arms, and two abutment arms are between two elastic arms.
10. electric connector as claimed in claim 1, it is characterised in that：Multiple terminals are symmetrically immobilizated in two rows In the horizontal part, the shielding case is provided with least one first shell fragment and at least one second shell fragment, is arranged respectively on abutting described Ground terminal and the ground terminal of lower row.
11. electric connector as claimed in claim 10, it is characterised in that：First shell fragment abuts the lower row ground connection backward The vertical arm of terminal, the vertical arm of second shell fragment row's of abutting ground terminal forward.
12. electric connector as claimed in claim 10, it is characterised in that：The shielding case has an antetheca, from the antetheca Opposite sides extends the two side to be formed, and extends towards two rear walls to be formed from two sidewall edges, the antetheca Plate face blanking is molded two first shell fragments, and the lower edge of each rear wall bends extension and forms one described second separately down Shell fragment.