CN210723414U - Electrical connector - Google Patents

Abstract

The utility model provides an electric connector, which comprises an insulating body, a plurality of conductive terminals fixed in the insulating body and a shielding shell, the conductive terminals comprise a first terminal group and a second terminal group, the insulating body comprises a main body part and a butt joint part, the first terminal group and the second terminal group are both provided with twelve conductive terminals, and the conductive terminals in the first and second terminal sets are arranged oppositely, each conductive terminal has a contact arm, a holding portion and a tail portion, the electric connector also has at least one inner insulator arranged in the insulator body, the first type of conductive terminals are embedded and molded in the inner insulator to form a terminal assembly, two second type of conductive terminals oppositely arranged along the height direction are connected with the fixing part through a bridging part, the tail parts of the second type of conductive terminals are symmetrically arranged along the height direction, and the second type of conductive terminals are directly assembled into the insulating body from back to front. The utility model discloses electric connector can transmit high frequency signal and heavy current, and the processing procedure is simple again.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector.

Background

With the rapid development of science and technology in the electronic industry, the volume of electronic products is developed along the trend of being thinner, thinner and shorter, which requires smaller and smaller components of the electronic products, and the connector industry is the first place.

This results in better mechanical performance requirements and higher product design difficulties due to the smaller size requirements of the new generation of USB Type-C connectors. In order to face thinner and thinner equipment and ensure the reliability of a product structure, various manufacturers have proposed corresponding structural designs.

In the conventional USB Type-C plug connector, two terminal assemblies are usually formed on conductive terminals in an injection molding manner, and then the two terminal assemblies and a front body are assembled into a whole, so that the manufacturing process is complex and tolerance accumulation is likely to occur to cause poor products; and traditional USB Type-C plug connector can not transmit great electric current usually, can not satisfy the application demand.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector that can transmit high frequency signal and heavy current, processing procedure are simple again.

In order to achieve the above object, the present invention provides an electrical connector, which comprises an insulating body, a plurality of conductive terminals fixed in the insulating body, a locking member, and a shielding shell covering the insulating body, wherein the conductive terminals comprise a first terminal set and a second terminal set arranged in two rows along a height direction, the insulating body comprises a main body portion and a butt joint portion located at the front side of the main body portion and forming an accommodating space, the first and second terminal sets are respectively provided with twelve conductive terminals, the conductive terminals in the first and second terminal sets are correspondingly and reversely arranged, each conductive terminal has an elastic contact arm protruding into the accommodating space, a fixing portion fixed in the insulating body, and a tail portion extending backwards from the fixing portion, the electrical connector further comprises at least one inner insulating member installed in the insulating body, the first type of conductive terminals are embedded and molded in the inner insulating piece to form a terminal assembly, two second type conductive terminals which are oppositely arranged along the height direction are connected with the fixing parts through a bridging part to form a conjoined terminal, the tail parts of the two second type conductive terminals forming the conjoined terminal are symmetrically arranged along the height direction, and the second type of conductive terminals are directly assembled into the insulating body from back to front.

As a further improvement of the present invention, the first and second terminal sets include a pair of ground terminals located at the outermost side, a pair of power terminals located at the inner side of the ground terminals, two pairs of high-speed signal terminals located between the ground terminals and the adjacent power terminals, and four signal terminals located between the pair of power terminals, wherein each terminal set includes a first type of conductive terminals and a second type of conductive terminals.

As a further improvement, the utility model discloses a every the afterbody of second type conductive terminal includes the connecting portion that are used for linking to each other the weld part with the circuit board and link to each other with the material area, the rear end face of connecting portion is located the front side of the rear end face of weld part.

As a further improvement of the present invention, the electric connector has an upper row of inner insulators and a lower row of inner insulators assembled to each other in the height direction, and the first type of conductive terminals in the first terminal group and the second terminal group are embedded and formed in the upper row of inner insulators and the lower row of inner insulators respectively.

As a further improvement of the present invention, each of the internal insulators includes a base portion coated outside the fixing portion of the conductive terminal and a gap portion formed by forward sinking of the rear end surface of the base portion, and the gap portion of the internal insulator is relatively disposed and linked to form a containing cavity for containing the locking member.

As a further improvement, the utility model discloses a each the internal insulation still has a at least buckle portion of locating its surface suddenly, buckle portion is located one side that the internal insulation deviates from another internal insulation, be equipped with on insulator's top, the diapire respectively with the buckle groove of buckle portion lock, the buckle groove runs through insulator corresponding roof or diapire along the direction of height.

As a further improvement of the present invention, the insulator further has a mounting space formed by recessing the rear end surface forward, the inner insulator is assembled forward from the rear in the mounting space, each the inner insulator has a pair of recess grooves concavely formed on the top or bottom thereof for accommodating the corresponding power terminals.

As a further improvement of the present invention, the main body further has a transverse wall formed between the top wall and the bottom wall thereof and four extension walls formed by extending rearward from the rear end surface of the transverse wall, each of the extension walls includes a first extension wall extending in the horizontal direction and at least one second extension wall connected to the first extension wall and extending in the height direction.

As the utility model discloses a further improvement, each the groove of stepping down has the first groove of stepping down that runs through the internal insulation along direction of height and does not step down the groove with the second that the internal insulation runs through along direction of height, the preceding terminal surface butt of bridge portion in the rear end face of first extension wall, the rear end face butt of bridge portion in the first back wall in the groove of stepping down.

As a further improvement of the present invention, the insulating body further has a plurality of limiting walls, each of which is disposed in the installation space, the limiting walls extend along the front-rear direction, and the terminal extending grooves of the second type of conductive terminals are formed at intervals between the adjacent limiting walls or the side walls of the insulating body.

The utility model has the advantages that: the utility model discloses electric connector can with the butt joint connector positive and negative insert, and partly conductive terminal inlay bury the shaping in the insulating body of reloading behind the internal insulation spare, in another part conductive terminal directly packs into the insulating body, so both can satisfy the transmission demand of high frequency signal and heavy current, can simplify whole electric connector's processing procedure again.

Drawings

Fig. 1 is a perspective assembly view of a first embodiment of an electrical connector according to the present invention.

Fig. 2 is a view of the electrical connector of fig. 1 from another perspective.

Fig. 3 is a partially exploded view of the electrical connector shown in fig. 1.

Fig. 4 is a view of the electrical connector of fig. 3 from another perspective.

Fig. 5 is a partially exploded view of the electrical connector of fig. 2 with the shutter housing removed.

Fig. 6 is an exploded perspective view of the electrical connector shown in fig. 5 with the insulating body and the metal dome removed.

Fig. 7 is a partially exploded view of a terminal assembly of the electrical connector shown in fig. 5.

Fig. 8 is a cross-sectional view of the dielectric body of the electrical connector shown in fig. 5.

Fig. 9 to 11 are sectional views of the electrical connector shown in fig. 1.

Fig. 12 is a perspective assembly view of a second embodiment of the electrical connector of the present invention.

Fig. 13 is a partially exploded view of the electrical connector of fig. 12.

Fig. 14 is an exploded perspective view of the electrical connector of fig. 13 with the dielectric body removed.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiment, and the structural, method, or functional changes made by those skilled in the art according to the embodiment are all included in the scope of the present invention.

Referring to fig. 1 to 11, an electrical connector 100 according to a first embodiment of the present invention includes an insulating housing 1, a plurality of conductive terminals 2 fixed in the insulating housing 1, a locking member 3, a shielding shell 4 covering the insulating housing 1, and a pair of metal elastic pieces 5 disposed between the insulating housing 1 and the shielding shell 4.

Referring to fig. 1 to 5 and 8 to 11, the insulation body 1 has a main body 11, a butt-joint portion 12 disposed in front of the main body 11, and a mounting portion 13 located behind the main body 11 and protruding outward, wherein the main body 11 and the butt-joint portion 12 are disposed in an oval column shape as a whole, and a receiving space 120 opened forward is formed inside the butt-joint portion 12 for inserting the docking connector forward or backward.

A plurality of terminal receiving grooves 10 are respectively formed on the inner sides of the top wall and the bottom wall of the insulating body 1, and the terminal receiving grooves 10 extend forward to the inner side of the butting portion 12 and are communicated with the receiving space 120. In this embodiment, the terminal receiving grooves 10 do not penetrate through the top wall and the bottom wall corresponding to the insulating body 1 in the height direction, that is, the conductive terminals 2 are not exposed outside the top wall or the bottom wall of the insulating body 1 when viewed from the upper side or the lower side, so that no insulating mylar is required to be used on the upper side and the lower side of the insulating body 1, the number of parts is reduced, the manufacturing cost of the product is reduced, the assembly process of the product is also reduced, and the production efficiency of the product is effectively improved.

The main body 11 has at least one fastening groove 112 formed by respectively recessing from the inner sides of the top wall and the bottom wall, in the embodiment shown in the present invention, the fastening groove 112 penetrates through the corresponding top wall or bottom wall along the height direction, and the top wall and the bottom wall are respectively provided with a plurality of fastening grooves 112.

The utility model discloses in, insulator 1 is upper and lower and left and right sides equal symmetrical formula structure. The main body 11 further has a transverse wall 113 formed between the top and bottom walls thereof and four extension walls 114 extending rearward from the rear end surface 1130 of the transverse wall 113, the extension walls 114 connecting the top and bottom walls of the main body 11. The four extending walls 114 are arranged side by side and at intervals along the transverse direction, wherein two extending walls 114 in the middle are H-shaped, two extending walls 114 at two sides are T-shaped and symmetrically arranged, and the two extending walls 114 at two sides are respectively connected with the side wall of the insulating body 1.

Each of the extension walls 114 includes a first extension wall 1141 extending in a horizontal direction and at least one second extension wall 1142 connected to the first extension wall 1141 and extending in a height direction. Specifically, each of the extension walls 114 located in the middle has a pair of the second extension walls 1142 opposite to and spaced apart from each other in the transverse direction, and each of the extension walls 114 located on both sides has one of the second extension walls 1142 connected to an inner end of the first extension wall 1141 thereof.

The mounting portion 13 includes a fitting portion 131 located at the front side and a protruding portion 132 located at the rear side, and an outer surface of the protruding portion 132 is located outside an outer surface of the fitting portion 131, that is, compared with the fitting portion 131, the protruding portion 132 has an expanded shape.

The two sides of the insulating body 1 in the transverse direction are respectively provided with a slot 14, and a pair of the slots 14 are respectively opened laterally and outwardly, and extend forward from the rear end surface 130 of the insulating body 1 to the butting portion 12, and are transversely communicated with the accommodating space 120 at two sides of the butting portion 12.

Referring to fig. 2 to 3, 5 to 7, and 9 to 11, the conductive terminal 2 includes a first terminal set 21 and a second terminal set 22 arranged in two rows along a height direction, and the first terminal set 21 and the second terminal set 22 are arranged in a reverse direction and correspond to each other.

In this embodiment, the first terminal set 21 and the second terminal set 22 both have twelve conductive terminals, which are respectively, in sequence: a first ground terminal (Gnd)20a, a first pair of high-speed signal terminals (TX1+ -, differential signal terminals for transmitting high-speed signals) 20b, a first Power terminal (Power/VBUS)20c, a function detection terminal (CC1 for detecting the function of forward and reverse insertion and recognizing the function of CABLE), a pair of low-speed signal terminals (D + -, differential signal terminals for transmitting low-speed signals), an expansion terminal (SBU1, which can be defined for other purposes), a second Power terminal (Power/VBUS), a second pair of high-speed signal terminals (RX2+ -, differential signal terminals for transmitting high-speed signals) 20b and a second ground terminal (Gnd)20 a. In other embodiments, the signal terminals (function detection terminal, low-speed signal terminal and expansion terminal) between the two power terminals 20c can be set according to the application requirements.

In other words, the pair of ground terminals 20a is disposed at the outermost side of the first/second terminal set, the pair of power terminals 20c is disposed at the inner side of the pair of ground terminals 20a, and a pair of high-speed signal terminals 20b is disposed between each ground terminal 20a and the adjacent power terminal 20 c.

The conductive terminals 2 include a first type of conductive terminals embedded and molded in the inner insulator 6 to constitute a terminal assembly, and a second type of conductive terminals directly assembled into the insulator 1 from the rear to the front. The terminal assembly has the receiving cavity disposed open rearward and located between the first and second terminal sets 21, 22. In the present invention, in each terminal set (first and second terminal sets), the high-speed signal terminal 20b and the four signal terminals (function detecting terminal, low-speed signal terminal and expansion terminal) are the first type of conductive terminals, and the ground terminal 20a and the power terminal 20c are the second type of conductive terminals.

In addition, referring to fig. 5 and 8 to 9, the insulating main body 1 further has an installation space 15 formed by recessing forward from the rear end surface thereof and a plurality of limiting walls 16 disposed in the installation space 15, each limiting wall 16 extends in the front-back direction and the rear end surface thereof is located at the front side of the rear end surface 130 of the insulating main body 1, the limiting walls 16 are formed on the inner surfaces of the top wall and the bottom wall of the insulating main body 1 in a protruding manner, and the terminal receiving grooves 10 and the locking grooves 112 are both communicated with the installation space 15. Furthermore, a terminal extension groove 101 for receiving and positioning the second type of conductive terminal is formed between each of the limiting walls 16 and the adjacent limiting wall 16 or the side wall of the insulating body 1 at an interval, so as to fix the second type of conductive terminal at the rear half part thereof, so as to prevent the rear half part of the inserted second type of conductive terminal from deflecting.

In the present invention, the limiting wall 16 is connected to the corresponding extending wall 114, and extends backwards from the rear end surface of the corresponding extending wall 114 to accommodate the corresponding conductive terminals 2.

Referring to fig. 2 to 6, 8 and 9, the electrical connector 100 further includes at least one inner insulator 6 assembled in the mounting space 15 from the back to the front. Preferably, the electrical connector 100 has an upper row of inner insulating members and a lower row of inner insulating members assembled with each other in a height direction, and the first type of conductive terminals in the first terminal group 21 and the second terminal group 22 are embedded and formed in the upper row of inner insulating members and the lower row of inner insulating members, respectively.

In the first embodiment of the present invention, the electrical connector 100 has a pair of the inner insulators 6 assembled with each other along the height direction, that is, the upper row of the inner insulators is one inner insulator 6, the lower row of the inner insulators is the other inner insulator 6, and the first type of conductive terminals (the high-speed signal terminals and the middle four signal terminals) in the first terminal group 21 and the second terminal group 22 are embedded and embedded in the corresponding inner insulators 6 respectively to form the first terminal assembly and the second terminal assembly respectively; in other embodiments, the electrical connector 100 may have only one inner insulating member 6, and the first type of conductive terminals in the two rows of conductive terminals may be embedded and molded at the same time.

The two inner insulators 6 in this embodiment are identical in structure and size, so that the first and second terminal assemblies can share a set of mold. Further, each of the inner insulators 6 includes a base portion 61 covering the holding portion 202 of the conductive terminal 2 and a cut portion 62 recessed forward from a rear end surface of the base portion 61, and the cut portions 62 of a pair of the inner insulators 6 are disposed opposite to each other and are communicated with each other to form a receiving cavity.

Each of the inner insulators 6 further has at least one fastening portion 63 protruding from the surface thereof, and the fastening portion 63 is located on a side of the inner insulator 6 away from the other inner insulator 6 to fasten with the fastening grooves 112 on the top and bottom walls of the insulator 1.

The inner insulators 6 are assembled into the mounting spaces 15 at the rear side of the housing 1 from the rear to the front, and each of the inner insulators 6 has a pair of recess grooves 64 recessed at the top or bottom thereof to receive the corresponding power terminals 20 c. In this embodiment, each of the receding grooves 64 has a first receding groove 641 which penetrates through the inner insulating member 6 along the height direction and a second receding groove 642 which does not penetrate through the inner insulating member 6 along the height direction, and the first receding groove 641 and the second receding groove 642 are connected in the front-back direction.

In addition, the inner insulator 6 is partitioned by a pair of the relief grooves 64 to form a pair of side portions 651 at both sides and a middle portion 652 at the middle, in this embodiment, the width of the middle portion 652 in the transverse direction is larger than the width of each side portion 651 in the transverse direction, one latching portion 63 is protrusively provided on each side portion 651, a pair of the latching portions 63 spaced in the transverse direction is formed at the middle portion, the width of the latching portion 63 in the transverse direction is smaller than the width of the side portion 651 in the transverse direction, and the latching portion 63 is located at the middle position of the inner insulator 6 in the front-rear direction. Each of the locking portions 63 has a guide surface 631 formed at a front end thereof and extending obliquely to guide the inner insulator 6 to be inserted into the mounting space 15. The middle portion 652 is sandwiched and sandwiched between two adjacent extending walls 114, and each side portion 651 is sandwiched and sandwiched between two extending walls 114 and adjacent extending walls 114.

The base portion 61 further has a connection wall 611 and protruding strips 612 located at two sides of the connection wall 611, each protruding strip 612 extends along the front-back direction and is connected to the connection wall 611, the connection wall 611 is located at the inner side of the second receding groove 642, that is, the connection wall 611 of the upper inner insulating member 6 is located at the lower side of the second receding groove 642 and is connected to the bottom end of the corresponding protruding strip 612, the connection wall 611 of the lower inner insulating member 6 is located at the upper side of the second receding groove 642 and is connected to the top end of the corresponding protruding strip 612, and the connection wall 611 and the protruding strips 612 at two sides thereof enclose a portion of the second receding groove 642 close to the horizontal central plane of the electrical connector 100.

Further, each of the inner insulators 6 further has at least one protrusion 66 protruding from the base portion 61 and a recess 67 recessed from the base portion 61; in the present embodiment, each of the protruding portions 66 is elongated and extends in the front-rear direction, and a pair of interference portions 661 are formed at two ends of the protruding portion in the longitudinal direction.

In addition, each of the conductive terminals 2 has an elastic contact arm 201 protruding into the receiving space 120, the holding portion 202 fixed in the insulating housing 1, and a tail portion 203 extending backward from the holding portion 202, and the contact arms 201 are arranged in two rows opposite to each other on the upper side and the lower side of the receiving space 120.

In the present embodiment, the contact arms 201 protrude upwards or downwards into the receiving space 120, and have contact portions 2011 at free ends thereof, and the contact portions 2011 protrude towards the corresponding contact arms 201 in the other row, so as to clamp a tongue piece (not shown) of a mating connector between the contact portions 2011. Meanwhile, the terminal receiving grooves 10 correspond to the contact portions 2011 of the conductive terminals 2 up and down to provide a space for the contact portions 2011 of the conductive terminals 2 to float outwards, so that the butt-joint connectors can be conveniently plugged. The positions of the contact portions 2011 of the first terminal set 21 and the second terminal set 22 on the insulative housing 1 are the same as the positions of the mating portions of the corresponding terminals on the standard USB Type-C plug connector.

The ground terminal 20a and the power terminal 20c in the first terminal group 21 are respectively connected with the corresponding ground terminal 20a and the power terminal 20c in the second terminal group 22 to form a connected ground terminal and a connected power terminal respectively. In this embodiment, the holding portions 202 of the ground terminal 20a and the power terminal 20c in the first terminal set 21 are integrally connected to the holding portions 202 of the conductive terminals corresponding to the second terminal set 22 along the height direction through the bridging portions 204, so as to form an integral terminal.

When assembling, the first and second terminal sets 21 and 22 can be assembled into the insulating body 1 at the same time, which brings great convenience to the assembly. In the present embodiment, four signal terminals located inside the power terminal 20c in two rows of terminal groups are separately arranged to constitute conductive terminals independent of each other. As shown in fig. 9, the front end surface of the bridging portion 204 abuts against the rear end surface of the first extending wall 1141, the rear end surface of the bridging portion 204 abuts against the rear wall surface of the first receding groove 641, and the rear half portion of the contact arm 201 is accommodated in the limiting space formed by the extending wall 114, so as to realize the positioning of the conjoined terminal.

In this embodiment, the length of the first receding groove 641 extending rearward from the front end surface of the inner insulating member 6 in a recessed manner is greater than the length of the extending wall 114 extending rearward, so that the bridging portion 204 of the one-piece power terminal is accommodated in the space of the first receding groove 641 which is longer than the extending wall 114.

The tail 203 of each of the second type of conductive terminals (the ground terminal 20a and the power terminal 20c) includes a soldering portion 2031 for connecting with a circuit board (not shown) and a connecting portion 2032 for connecting with a material tape, a rear end surface of the connecting portion 2032 is located on a front side of a rear end surface of the soldering portion 3021, and the connecting portion 2032 is disposed on a side of the soldering portion 2031 deviating from a soldering surface 2033 thereof. In this embodiment, the soldering portions 2031 of the second type of conductive terminals and the tail portions 203 of the first type of conductive terminals extend rearward and beyond the rear end surface 130 of the insulating body 1.

Referring to fig. 4 to 5 in combination with fig. 7 and 8, the locking element 3 is made of metal and is located at the center of the insulating body 1 along the height direction. In the present embodiment, the latch member 3 includes a base 31, the latch arm 32 extending forward from the base 31, and a solder foot 33 extending backward from the base 31 beyond the rear end surface 130 of the insulative housing 1 for soldering on a circuit board (not shown), so that the latch member 3 has a grounding effect.

The base 31 and the latch arm 32 of the latch member 3 are bilaterally symmetrical, and the solder tails 33 extend in the same direction and are disposed on two sides of a circuit board (not shown) in the height direction. The base 31 is a horizontally disposed sheet structure, and includes a cross beam 311 extending along a transverse direction and having a strip shape, and a pair of protruding portions 312 disposed at two sides of the cross beam 311, wherein the protruding portions 312 are formed at two sides of the cross beam 311 in an outward protruding manner along the transverse direction so as to be electrically connected to the shielding shell 4.

The latch arms 32 are formed by extending from two sides of the base 31 in pairs in the same direction, and are disposed at the outer side of the conductive terminal 2 along the transverse direction, each latch arm 32 has a cantilever 321 connected with the base 31 and a latch protrusion 322 disposed at the end of the cantilever 321, and the latch protrusions 322 on the latch arms 32 disposed in pairs protrude in opposite directions.

When the locking element 3 is assembled into the housing 1 from the rear to the front, the base 31 is fixed in the mounting portion 13 of the housing 1, the locking arm 32 is inserted into the corresponding slots 14 at the two sides of the housing 1 from the rear to the front, and the front portion of the cantilever 321 is exposed in the receiving space 120 for locking and retaining with the mating connector. The base 31 and the latch arm 32 are located between the first and second terminal sets 21 and 22 in the vertical direction, and the cross beam 311 is accommodated in the accommodating cavity formed between the first and second terminal sets 21 and 22.

Referring to fig. 1 to 4, the front end of the shielding shell 4 has an oval mating frame opening, which is consistent with the mating frame opening of the standard USB Type-C plug connector, and is used for the positive and negative insertion and matching of the mating connector, and has the advantage of convenience in use applicable to both positive and negative insertion.

The shielding shell 4 is a drawn seamless structure, and includes a frame portion 41 at the front end thereof and an extending portion 42 integrally extending rearward from the frame portion 41, in this embodiment, the extending portion 42 is an expanding structure integrally extending outward from the frame portion 41, wherein the overall height of the extending portion 42 is greater than the overall height of the frame portion 41, and the distance that the extending portion 42 extends outward in the height direction is greater than the distance that the extending portion extends outward in the transverse direction.

When assembling, the shielding shell 4 is sleeved on the outer side of the insulating body 1 from front to back, wherein the frame body 41 is sleeved outside the main body 11 and the abutting portion 12, the extending portion 42 is sleeved on the outer side of the fitting portion 131, and the exposed portion 132 is exposed on the back side of the shielding shell 4.

Referring to fig. 3 to 5, 8 and 9, in the present embodiment, the number of the metal elastic sheets 5 is a pair, each metal elastic sheet 5 has a substrate 51 attached to the outer side of the insulating body 1, a fixing piece 52 bent from two sides of the substrate 51 and fixed in the combining hole 121 of the insulating body 1, a plurality of inner supporting elastic sheets 53 extending forward from the substrate 51 and protruding inward into the accommodating space 110, and a plurality of outer supporting elastic sheets 54 bent outward (upward or downward) from the substrate 51. The substrate 51 is continuously bent, the inner abutting elastic sheet 53 is located on the outer side of the outer abutting elastic sheet 54 along the transverse direction, the inner abutting elastic sheet 53 is used for abutting against a grounding piece on the butting connector, and the outer abutting elastic sheet 54 abuts against the inner wall of the shielding shell 4 (the inner surface of the top wall and/or the bottom wall of the shielding shell 4) outwards to form a grounding effect.

When each metal elastic sheet 5 is placed in the corresponding accommodating area 122 of the insulating body 1, the metal elastic sheet 5 is located in front of the conductive terminal 2 in the front-back direction, the substrate 51 is located in the accommodating area 122, and the inner abutting elastic sheet 53 passes through the corresponding accommodating hole 123 and protrudes into the accommodating space 110 to abut against a grounding piece on the butting connector.

Referring to fig. 12 to 14, a second embodiment of the electrical connector 100 ' of the present invention is shown, in this embodiment, the electrical connector 100 ' is similar to the electrical connector 100 ' of the first embodiment in basic structure, and includes an insulating body 1 ', a plurality of conductive terminals 2 ', a locking member 3 ', a shielding shell 4 ', and an inner insulating member 6 ' integrally formed with a portion of the conductive terminals 2 ', except that:

the two sides of the insulating body 1 ' are respectively provided with a pair of holding grooves 14 ' extending along the front-back direction, the holding grooves 14 ' are symmetrically arranged at the two side parts of the insulating body 1 ', and are respectively recessed forward from the rear end surface of the mounting part 13 ' to the interior of the butt-joint part 12 ' and communicated with the accommodating space 120 '. Each of the holding grooves 14 'is opened to the outside only at portions on both sides of the mating portion 12', and is not opened to the outside at portions on both sides of the main body portion 11 'and the mounting portion 13'.

In this embodiment, the pair of locking members 3 'are disposed independently of each other and are disposed opposite to each other on two sides of the conductive terminal 2' in the transverse direction. Each of the locking pieces 3 ' is vertically disposed as a whole, and has a base 31 ' disposed in a vertical direction and having a plate-like structure, and a solder tail 33 ' at a rear end thereof, the solder tail 33 ' being an asymmetric structure located on only one side of the base 31 ' in a height direction.

In this embodiment, the electrical connector 100 'has eight independent inner insulators 6', and each inner insulator 6 'is elongated and extends in the front-back direction, and is integrally formed with two corresponding conductive terminals 2'. Specifically, each of the inner insulators 6 ' is elongated and extends in the front-rear direction, and has a locking portion 63 ' protruding from the top/bottom surface thereof and protruding strips 612 ' oppositely disposed on both sides in the transverse direction thereof. In addition, an interference portion 661 'on the protruding portion 66' is formed on one side thereof in the lateral direction.

The electric connectors 100, 100 'of the present invention can be inserted into the mating connector in a positive and negative direction, and some conductive terminals 2, 2' including the high frequency signal terminal are embedded and embedded into the inner insulators 6, 6 'and then installed into the insulating body 1, and the other conductive terminal 2 is directly installed into the insulating body 1, so that the electric connectors 100, 100' can transmit high frequency signals, and the process of the whole electric connector 100 can be simplified; in addition, since the grounding terminals 20a of the upper and lower conductive terminals 2 are connected into a whole and the power terminals 20c are connected into a whole, the assembly is convenient and the transmission of large current can be realized.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. An electric connector is provided with an insulating body, a plurality of conductive terminals fixed in the insulating body, a locking piece and a shielding shell coated outside the insulating body, wherein each conductive terminal comprises a first terminal group and a second terminal group which are arranged in two rows along the height direction, the insulating body comprises a main body part and a butt joint part which is positioned at the front side of the main body part and forms a containing space, the first terminal group and the second terminal group are respectively provided with twelve conductive terminals, the conductive terminals in the first terminal group and the second terminal group are correspondingly and reversely arranged, and each conductive terminal is provided with an elastic contact arm protruding into the containing space, a fixing part fixed in the insulating body and a tail part extending backwards from the fixing part, and the electric connector is characterized in that: the electric connector is also provided with at least one inner insulating piece arranged in the insulating body, the first type of conductive terminals are embedded and molded in the inner insulating piece to form a terminal assembly, the two second type of conductive terminals which are oppositely arranged along the height direction are connected with the fixing part through a bridging part to form a conjoined terminal, the tails of the two second type of conductive terminals forming the conjoined terminal are symmetrically arranged along the height direction, and the second type of conductive terminals are directly assembled into the insulating body from back to front.

2. The electrical connector of claim 1, wherein: the first terminal group and the second terminal group respectively comprise a pair of grounding terminals located on the outermost side, a pair of power supply terminals located on the inner side of the grounding terminals, two pairs of high-speed signal terminals located between the grounding terminals and the adjacent power supply terminals thereof, and four signal terminals located between the pair of power supply terminals, wherein in each terminal group, the high-speed signal terminals and the four signal terminals are first-class conductive terminals, and the grounding terminals and the power supply terminals are second-class conductive terminals.

3. The electrical connector of claim 1, wherein: each second type conductive terminal tail part comprises a welding part used for being connected with the circuit board and a connecting part connected with the material belt, and the rear end face of the connecting part is positioned on the front side of the rear end face of the welding part.

4. The electrical connector of claim 3, wherein: the electric connector is provided with an upper row of inner insulating pieces and a lower row of inner insulating pieces which are mutually assembled along the height direction, and the first type of conductive terminals in the first terminal group and the second terminal group are respectively embedded and embedded in the upper row of inner insulating pieces and the lower row of inner insulating pieces.

5. The electrical connector of claim 4, wherein: each internal insulating piece comprises a base part coated outside the holding part of the conductive terminal and a gap part formed by sinking forwards from the rear end surface of the base part, and the gap parts of the pair of internal insulating pieces are oppositely arranged and communicated to form a containing cavity for containing the locking piece.

6. The electrical connector of claim 5, wherein: each internal insulation piece is also provided with at least one buckling part which is arranged on the surface of the internal insulation piece in a protruding mode, the buckling part is located on one side, away from the other internal insulation piece, of the internal insulation piece, buckling grooves which are buckled with the buckling parts are formed in the top wall and the bottom wall of the insulation body respectively, and the corresponding top wall or the corresponding bottom wall of the insulation body is penetrated through by the buckling grooves in the height direction.

7. The electrical connector of claim 6, wherein: the insulating body is also provided with an installation space formed by sinking forwards from the rear end surface of the insulating body, the inner insulating pieces are assembled into the installation space from back to front, and each inner insulating piece is provided with a pair of abdicating grooves concavely arranged on the top or the bottom of the inner insulating piece to accommodate corresponding power terminals.

8. The electrical connector of claim 7, wherein: the main body part is also provided with a transverse wall formed between the top wall and the bottom wall of the main body part and four extension walls formed by extending backwards from the rear end surface of the transverse wall, and each extension wall comprises a first extension wall extending along the horizontal direction and at least one second extension wall which is connected with the first extension wall and extends along the height direction.

9. The electrical connector of claim 8, wherein: each the groove of stepping down has along the direction of height with the first groove of stepping down that interior insulator runs through and not with the second groove of stepping down that interior insulator runs through along the direction of height, the preceding terminal surface butt of bridge portion in the rear end face of first extension wall, the rear end face butt of bridge portion in the back wall in first groove of stepping down.

10. The electrical connector of claim 7, wherein: the insulating body is also provided with a plurality of limiting walls which are oppositely arranged in the mounting space, each limiting wall extends along the front-back direction, and terminal extending grooves for accommodating the second type of conductive terminals are formed between the limiting walls and the side walls of the adjacent limiting walls or the insulating body at intervals.

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