CN111628342B

CN111628342B - Plug connector and connector combination with same

Info

Publication number: CN111628342B
Application number: CN202010356374.2A
Authority: CN
Inventors: 张文昌; 杨启晓; 陈志坤
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-09-21
Anticipated expiration: 2040-04-29
Also published as: CN111628342A

Abstract

The invention discloses a plug connector, which is used for matching with a socket connector and comprises a plug body and a plug body, wherein the plug body is provided with a plug hole; the insulating body comprises a main body part and a latch arm, the latch arm is provided with a first elastic arm extending upwards and backwards from the main body part and a second elastic arm extending forwards from the first elastic arm, the second elastic arm is positioned above the first elastic arm, the front end of the second elastic arm passes forwards over the first elastic arm, a separation groove is formed between the first elastic arm and the second elastic arm, the first elastic arm is provided with a downward locking part for locking the buckling part of the electric connector, the second elastic arm is provided with a first blocking part located in front of the locking part and a second blocking part located in front of the first blocking part, the locking arm is provided with a pressing part on the second elastic arm, the pressing part is pressed, the first blocking part abuts against the first elastic arm before the second blocking part abuts against the main body part, the pressing part is continuously pressed after the first blocking part abuts against the first elastic arm, the locking part and the buckling part are mutually released after the locking part continuously moves upwards, and the second blocking part abuts against the main body part and is used for inhibiting the second elastic arm from excessively pressing downwards.

Description

Plug connector and connector combination with same

[ technical field ] A method for producing a semiconductor device

The present invention relates to a plug connector and a connector assembly having the same, and more particularly, to a connector assembly having a latch arm for latching a receptacle connector.

[ background of the invention ]

There is a plug connector and a socket connector butted thereto, the plug connector and the socket connector constitute a connector assembly, the socket connector includes an insulating base and a plurality of conductive terminals disposed on the insulating base, the insulating base is provided with a butt space formed by recessing the front end surface of the insulating base to the back and a top wall located above the butt space, the top wall is provided with a buckling part protruding upwards from the top surface of the top wall, the plug connector is provided with an insulating body and a plurality of butt terminals disposed on the insulating body, the insulating body is provided with a main body part, a supporting part formed by extending upwards from the top surface of the main body part vertically and an elastic arm connected to the supporting part, the elastic arm includes a pressing arm formed by extending forwards horizontally relative to the supporting part and a buckling arm formed by extending backwards horizontally relative to the supporting part, the supporting part is connected to the middle position of the elastic arm in the front-back direction, a buckling part is arranged at the rear end of the buckling arm in a downward protruding mode, the plug connector is inserted into the butt joint space of the socket connector backwards, the butt joint terminal and the conductive terminal are connected in a mutually guiding mode, the buckling part and the buckling part are buckled mutually, the pressing arm is pressed downwards, the supporting part is stressed to deform, and the buckling part moves upwards to achieve mutual tripping of the buckling part and the buckling part.

Because the length of buckle arm receives the restriction of plug connector's size makes the whole arm of force of buckle arm is very short, and elasticity is relatively weak, makes press the arm and need press great distance downwards, just can realize buckle portion with the dropout of buckling parts, and buckle portion with the in-process that the buckling parts was tripped each other, the atress of bullet arm is all concentrated the supporting part leads to the internal stress of supporting part is very big, appears easily supporting part department cracked condition causes plug connector's life is short.

Therefore, there is a need to design a new plug connector and a connector assembly having the same to overcome the above problems.

[ summary of the invention ]

In view of the problems in the prior art, an object of the present invention is to provide a plug connector and a connector assembly having the plug connector, which can release the plug connector and the receptacle connector from each other with a small amount of downward movement of a pressing portion of the plug connector.

In order to achieve the purpose, the invention adopts the following technical means:

a plug connector for mating with a receptacle connector, comprising; an insulating body, including a main body and a latch arm, the latch arm has a first elastic arm extending upward and backward from the top surface of the main body and a second elastic arm extending forward from the first elastic arm, the second elastic arm is located above the first elastic arm, and the front end of the second elastic arm passes forward over the first elastic arm, a separation groove is formed between the first elastic arm and the second elastic arm, the first elastic arm has a downward latch part for latching a latch holding part of the socket connector, the second elastic arm is provided with a first stop part located in front of the latch part and a second stop part located in front of the first stop part, the latch arm is provided with a pressing part on the second elastic arm, the pressing part is pressed downward, the first stop part is abutted downward against the first elastic arm before the second stop part abuts against the top surface of the main body, the first blocking part is abutted with the first elastic arm downwards and then continuously presses the pressing part downwards, so that the locking part and the buckling holding part are mutually released only after the locking part continuously moves upwards, and the second blocking part is abutted with the top surface of the main body part downwards to inhibit the second elastic arm from being excessively pressed downwards; the butt-joint terminal is arranged on the insulating body and is provided with a butt-joint part for being in conductive connection with at least one conductive terminal of the socket connector.

Further, the locking part and the second blocking part are both located below the first blocking part.

Furthermore, the pressing part is formed by upward protruding from the front end of the second elastic arm, a protruding part is formed by downward protruding from the second elastic arm, the second blocking part is formed at the bottom end of the protruding part, and the pressing part and the second blocking part are arranged in an up-and-down alignment manner.

Further, the pressing part is located behind the first blocking part.

Further, a distance between the first stopper portion and the first arm spring in the vertical direction is smaller than a distance between the second stopper portion and the first arm spring in the vertical direction.

Further, the locking part is located behind the main body part and is higher than the top surface of the main body part in the vertical direction.

Further, the first elastic arm is provided with a supporting portion, a deflection portion and a connecting portion, the supporting portion vertically extends upwards from the top surface of the main body portion to form the supporting portion, the connecting portion extends between the deflection portion and the locking portion, the deflection portion enables the connecting portion to be higher than the supporting portion, the locking portion is formed by protruding downwards from the connecting portion, and the pressing portion is pressed downwards to enable the first stopping portion to abut against the supporting portion.

Furthermore, the second elastic arm is provided with a first part connected with the first elastic arm and a second part formed by extending the first part forwards, the pressing part is formed by extending the second part upwards in a protruding manner, and the top surface of the second part is lower than that of the first part.

Furthermore, the main body part is provided with at least one accommodating hole for accommodating at least one butt-joint terminal and at least one through hole penetrating through the top surface of the main body part, the accommodating hole penetrates through the main body part from front to back, each through hole is communicated with one of the accommodating holes, each butt-joint terminal is provided with a blocking part, the blocking part protrudes into the through hole to prevent the butt-joint terminal from exiting the accommodating hole, and the front end surface of the second elastic arm is positioned behind the through hole.

In another aspect, a plug connector assembly is provided, comprising; the socket connector comprises an insulating seat and at least one conductive terminal arranged on the insulating seat, wherein the insulating seat comprises a rear wall and two side walls positioned on the left side and the right side of the rear wall, the rear wall and the two side walls enclose a butting space, the rear wall is provided with a buckling part, and the conductive terminal is provided with a contact part exposed in the butting space; a plug connector inserted into the butt space of the socket connector, the plug connector including an insulating body and at least one butt terminal provided in the insulating body, the insulating body having a main body and a latch arm, the latch arm having a first resilient arm extending upward and rearward from a top surface of the main body and a second resilient arm extending forward from the first resilient arm, the second resilient arm being located above the first resilient arm and a front end of the second resilient arm passing forward over the first resilient arm, a separation groove being formed between the first resilient arm and the second resilient arm, the first resilient arm having a downwardly facing latch portion for latching the latching portion, the second resilient arm having a first stop portion located forward of the latch portion and a second stop portion located forward of the first stop portion, the latch arm having a pressing portion on the second resilient arm, the pressing part is pressed downwards, the first blocking part is abutted with the first elastic arm downwards before the second blocking part is abutted with the top surface of the main body part downwards, the first blocking part is abutted with the first elastic arm downwards and then continuously pressed downwards to enable the locking part to continuously move upwards to realize mutual tripping of the locking part and the buckling part, and the second blocking part is abutted with the top surface of the main body part downwards to inhibit the second elastic arm from excessively pressing downwards.

Furthermore, the first elastic arm is provided with a supporting part vertically extending upwards from the top surface of the main body part, a horizontal part horizontally extending backwards from the supporting part, a deflection part extending backwards and obliquely upwards from the horizontal part, and a connecting part formed by continuing from the rear end of the deflection part, the locking part is formed by extending downwards from the rear end of the connecting part, and the first blocking part is positioned right above the supporting part.

Furthermore, the insulating body is provided with at least one accommodating hole for accommodating the at least one butting terminal correspondingly and a lug corresponding to each accommodating hole, and the lug is positioned in front of the corresponding conductive terminal and used for limiting the conductive terminal from being excessively inserted into the corresponding accommodating hole forwards.

Furthermore, each side wall comprises an extension arm and an elastic arm which is arranged close to the butt joint space relative to the extension arm, the elastic arm is provided with a first arm extending forwards from the extension arm and a second arm bending reversely from the first arm and extending backwards, the second arm is connected with the rear wall backwards, a groove penetrating forwards is formed between the first arm and the extension arm, a through groove is formed between the second arm and the first arm, a buckling part is arranged on one side of the second arm, which is far away from the first arm, and the buckling part is arranged corresponding to the through groove and the groove in the left-right direction; the left side and the right side of the main body part are respectively provided with a buckling part correspondingly buckled with the buckling part for buckling the plug connector and the socket connector.

Further, the through slot extends rearwardly beyond the slot.

Further, the open slot comprises a first slot and a second slot connected with the rear end of the first slot, the first slot penetrates through the side wall forwards, and the width of the front end of the first slot in the left-right direction is larger than that of the rear end of the first slot in the left-right direction.

Furthermore, each extension arm is fixed with a mounting, the mounting is equipped with a holding portion and an installation department, holding portion is in slotted rear interference is fixed in the lateral wall, the installation department is used for installing in a circuit board.

Furthermore, the insulating seat further comprises a top wall connected with the rear wall, the top wall is located above the butt joint space, a groove is formed in the left side and the right side of the front end of the top wall in a backward concave mode respectively, the groove is adjacent to the corresponding second arm, the buckling portion is located behind the buckling portion, and the buckling portion is exposed out of the corresponding groove.

Furthermore, the left side and the right side of the insulating body are respectively provided with a guide part which is positioned below the corresponding buckling part, the guide parts respectively exceed the buckling parts forwards and backwards, and in the butt joint process of the socket connector and the plug connector, the guide parts guide the insulating body to be inserted into the butt joint space backwards below the corresponding buckling parts.

Compared with the prior art, the plug connector and the connector combination with the plug connector have the following beneficial effects:

the latch arm is provided with the first elastic arm and the second elastic arm extending forwards from the first elastic arm, the second elastic arm is positioned above the first elastic arm, the front end of the second elastic arm forwards passes over the first elastic arm, and the separation groove is formed between the first elastic arm and the second elastic arm, so that the length of the integral force arm of the latch arm is increased, the elasticity is good, the latch arm is not easy to fatigue, and the service life is prolonged; the second elastic arm is provided with the first stopping part positioned in front of the locking part and the second stopping part positioned in front of the first stopping part, the pressing part positioned on the second elastic arm is pressed downwards, the first stopping part is abutted against the first elastic arm downwards before the second stopping part is abutted against the top surface of the main body part downwards, the first stopping part is abutted against the first elastic arm downwards and then continuously presses the second elastic arm downwards, so that the mutual tripping of the locking part and the buckling part is realized after the locking part continuously moves upwards, the second stopping part is abutted against the top surface of the main body part downwards to inhibit the second elastic arm from being pressed downwards excessively, a movable supporting point for the upward movement of the locking part is formed on the first elastic arm, and no overlarge stress is generated at the position where the first elastic arm is connected with the main body part, but distribute stress in first bullet arm with the second bullet arm utilizes lever principle, thereby is favorable to thereby the hasp portion rebound realizes hasp portion with detain the mutual dropout of holding, when increasing the length of hasp arm of force, ensures the hasp arm occupies less space, satisfies practical requirement.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of a plug connector and a connector assembly having the plug connector according to the present invention;

FIG. 2 is a perspective assembly view of FIG. 1;

fig. 3 is a perspective view of the receptacle connector of fig. 2 from another perspective;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is an enlarged view of C in FIG. 4;

FIG. 6 is a schematic view of the plug connector and the receptacle connector of FIG. 5 before the mating is completed;

FIG. 7 is a perspective view taken along line A-A of FIG. 2;

FIG. 8 is a side view of the plug connector of FIG. 2;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 10 is a schematic view of the plug connector of fig. 9 being disengaged from the receptacle connector;

fig. 11 is a schematic view of the plug connector and the receptacle connector of fig. 9 after they are disengaged from each other.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

As shown in fig. 1 and 2, a plug connector 200 and a connector assembly having the plug connector 200 according to the present invention are provided. The forward direction in the front-rear direction is defined as the positive X-axis direction, the leftward direction in the left-right direction is defined as the positive Y-axis direction, and the upward direction in the up-down direction is defined as the positive Z-axis direction.

Referring to fig. 1, 2 and 9, a plug connector 200 and a connector assembly having the plug connector 200 according to the present invention are shown, the connector assembly includes a receptacle connector 100 and the plug connector 200, the receptacle connector 100 is downwardly mounted on a circuit board 300, and the plug connector 200 is used for electrically connecting a cable (not shown).

As shown in fig. 1 and 3, the receptacle connector 100 includes an insulative housing 1, a plurality of conductive terminals 2 received in the insulative housing 1, and two fixing members 3. In other embodiments, only one conductive terminal 2 may be provided.

As shown in fig. 1 and fig. 3, the insulating base 1 includes a rear wall 11 and two side walls 12 located at the left and right sides of the rear wall 11, the two side walls 12 connect the rear wall 11, and the rear wall 11 and the two side walls 12 enclose an abutting space 13. The insulating base 1 further comprises a top wall 14 connected to the rear wall 11, the top wall 14 connects the two side walls 12 in the left-right direction, and the top wall 14 is located above the docking space 13.

As shown in fig. 1, 3 and 9, the rear wall 11 is provided with a plurality of terminal holes 111 and a plurality of positioning grooves 112. The terminal holes 111 penetrate through the rear wall 11 in the front-rear direction, each of the positioning grooves 112 is formed by being recessed rearward from the front end surface of the rear wall 11, and the positioning groove 112 penetrates downward through the bottom surface of the rear wall 11 but does not penetrate rearward through the rear end surface of the rear wall 11. Two positioning grooves 112 are provided, the positioning grooves 112 and the terminal holes 111 are arranged in a staggered manner in the left-right direction, and the two positioning grooves 112 are approximately positioned at the left side and the right side of the rear wall 11. The rear wall 11 further includes a fastening portion 15, the fastening portion 15 is a plastic portion that is recessed forward from the rear end face of the rear wall 11 and does not pass through the front end face of the rear wall, and the fastening portion 15 is located above the terminal holes 111.

As shown in fig. 3 and 4, each of the sidewalls 12 is provided with an extension arm 120 and a resilient arm 121 disposed close to the docking space 13 relative to the extension arm 120, a slot 122 is formed between the resilient arm 121 and the extension arm 120, the slot 122 extends in a front-back direction and forwardly penetrates through the corresponding sidewall 12, and the slot 122 simultaneously penetrates through the corresponding sidewall 12 up and down.

As shown in fig. 2 and 3, each of the extension arms 120 is provided with a fixing groove 123, the fixing groove 123 is communicated with the slot 122 in the left-right direction, and the fixing groove 123 penetrates through the corresponding side arm in the front-rear direction.

As shown in fig. 3 and 4, the elastic arm 121 has a first arm 124 formed by extending forward from the extension arm 120 and a second arm 125 formed by bending and extending backward from the first arm 124, the second arm 125 is connected backward to the rear wall 11, and the second arm 125 is disposed close to the docking space 13 in the left-right direction with respect to the first arm 124.

As shown in fig. 3, 4 and 5, the slot 122 is formed between the first arm 124 and the extension arm 120, the slot 122 includes a first slot 122a and a second slot 122b connected to a rear end of the first slot 122a, the first slot 122a extends forward through the sidewall 12, a width W1 of a front end of the first slot 122a in the left-right direction is greater than a width W2 of a rear end thereof in the left-right direction, and a rear end of the second slot 122b is located in front of the rear wall 11. The first arm 124 has an inclined surface 128 connected to the front end surface thereof and facing the slot 122, and the inclined surface 128 is disposed corresponding to the first slot 122 a.

As shown in fig. 3, 4 and 5, the second arm 125 is disposed parallel to the first arm 124 and forms a through slot 126 therebetween, the through slot 126 extends rearward beyond the slot 122 but does not extend rearward through the rear wall 11, and the through slot 126 extends up and down through the side wall 12. The through slot 126 includes a front through slot 126a and a rear through slot 126b, and the width W3 of the front through slot 126a in the left-right direction is greater than the width W4 of the rear through slot 126b in the left-right direction. A fastening portion 127 is disposed on a side of the second arm 125 away from the first arm 124, the fastening portion 127 is formed by protruding the second arm 125 to the docking space 13, a distance between the fastening portion 127 and a front end surface corresponding to the side wall 12 is smaller than a distance between the fastening portion 127 and a front end surface of the rear wall 11, the fastening portion 127 is located behind a front end of the top wall 14, and the fastening portion 127 is disposed corresponding to the front through groove 126a and the open groove 122 in the left-right direction. The second arm 125 is further provided with a guiding inclined surface 129 connected to the front end surface thereof and facing the docking space 13, the guiding inclined surface 129 is used for guiding the plug connector 200 to be inserted into the docking space 13, and the rear end of the inclined surface 128 exceeds the guiding inclined surface 129.

As shown in fig. 3 and 4, a notch 141 and two grooves 142 are formed by recessing from the front end of the top wall 14, the notch 141 is located between the two grooves 142 in the left-right direction and is spaced from the three grooves, the notch 141 is communicated with the docking space 13 in the up-down direction, and the notch 141 is located right in front of the latching portion 15. The width of the groove 142 in the left-right direction is smaller than that of the notch 141, the notch 141 extends rearward to the rear wall 11, and the groove 142 does not extend rearward to the rear wall 11, that is, the rear end of the groove 142 is located forward of the notch 141, so that the notch 141 divides the top wall 14 into two parts. The rear end of the groove 142 is flush with the rear end of the second slot 122b in the front-rear direction, the groove 142 is disposed adjacent to the corresponding second arm 125, the rear end of the groove 142 is located behind the corresponding latching portion 127, the groove 142 has a side edge 143 in the left-right direction, and the latching portion 127 does not exceed the side edge 143 of the corresponding groove 142 in the left-right direction.

As shown in fig. 1, fig. 3 and fig. 9, the conductive terminals 2 are formed by blanking a metal plate, a plurality of conductive terminals 2 are accommodated in the plurality of terminal holes 111 in a one-to-one correspondence manner, each conductive terminal 2 is provided with a fixing portion 21, a contact portion 22 extending forward from the fixing portion and a welding portion 23 extending backward from the fixing portion 21, the fixing portion 21 is fixed to the corresponding terminal hole 111 in the up-down direction, the contact portion 22 protrudes forward into the butt joint space 13, and the welding portion 23 protrudes downward out of the bottom surface of the insulating base 1 to be welded to the circuit board 300.

As shown in fig. 2, 3 and 6, two fixing members 3 are fixed to the fixing grooves 123 of the two side walls 12, that is, each fixing member 3 is fixed to one of the fixing grooves 123, the fixing member 3 protrudes rearward beyond the front end surface of the rear wall 11, and one side of the fixing member 3 facing the docking space 13 in the left-right direction is exposed to the corresponding slot 122. The fixing member 3 is provided with a fixing portion 31 extending front and back and an installation portion 32 exposing downwards to the bottom surface of the fixing arm, the fixing portion 31 is located behind the installation portion 32, the fixing portion 31 is provided with a plurality of protruding spines 311, the protruding spines 311 are arranged behind the second grooves 122b to interfere with the side walls 12, the installation portion 32 is located in front of the buckling portion 127, and the installation portion 32 is welded downwards to the circuit board 300 (see fig. 9 for assistance) to fix the socket connector 100.

As shown in fig. 1 and 9, the plug connector 200 includes an insulative housing 4 and a plurality of mating terminals 5 received in the insulative housing 4. In other embodiments, only one of the docking terminals 5 may be provided.

As shown in fig. 1, 4 and 8, the insulating body 4 includes a main body 41, a locking portion 42 and a guiding portion 43 respectively located at the left and right sides of the main body 41, a plurality of positioning protrusions 44 protruding backward from the main body 41, and a locking arm 45 extending upward from the main body 41.

As shown in fig. 1, 4 and 9, the main body 41 is inserted into the docking space 13 backward, and the main body 41 has a top surface 411 in the vertical direction. The main body 41 is provided with a plurality of receiving holes 412, each receiving hole 412 penetrates the main body 41 in a front-back direction, a protrusion 413 protrudes upwards from the main body 41 corresponding to each receiving hole 412, and the protrusion 413 is located in front of the corresponding contact portion 22 to limit the conductive terminal 2 from being excessively inserted into the corresponding receiving hole 412 in a forward direction. The main part 41 is provided with a plurality of through holes 414 and two abdicating grooves 415 which run through the top surface 411 but do not run through the bottom surface, a plurality of the through holes 414 communicate one by one a plurality of the receiving holes 412, two the abdicating grooves 415 are provided a plurality of the left and right sides of the through holes 414, and the abdicating grooves 415 are adjacent to the through holes 414 which are arranged in a staggered manner and communicated with each other, in the embodiment, a plurality of the through holes 414 are communicated with each other along the left and right directions.

As shown in fig. 1, 4 and 5, the latching portion 42 and the guiding portion 43 respectively protrude from the main body 41 in the left-right direction, on the same side of the main body 41, the guiding portion 43 is located below the latching portion 42 and is connected to and corresponds to the latching portion 42 in the up-down direction, the guiding portion 43 extends forward to the front end surface of the main body 41 and extends backward to the rear end surface of the main body 41, the front end surface and the rear end surface of the latching portion 42 and the main body 41 have a certain distance, the distance between the latching portion 42 and the front end surface of the main body 41 is smaller than the distance between the latching portion 42 and the rear end surface of the main body 41, the latching portion 42 and the corresponding latching portion 127 are latched with each other to lock the socket connector 100 and the plug connector 200, the latching portion 42 is located behind the latching portion 127, the fastening portions 42 are upwardly exposed from the corresponding grooves 142. The guiding portion 43 is located below the engaging portion 42 to prevent the plug connector 200 from moving up excessively. Every buckling parts 42 corresponds 7 wherein one of them in the left and right directions the groove 415 of stepping down sets up, the groove 415 of stepping down for corresponding buckling parts 42 provides the deformation space.

As shown in fig. 4, 5 and 6, in the process of fastening the fastening portion 42 and the fastening portion 127 to each other, the elastic arm 121 may be biased toward the extension arm 120, the slot 122 provides a deformation space for the first arm 124, the through slot 126 provides a deformation space for the second arm 125, so that the arm of force of the elastic arm 121 is increased, the elasticity is improved, the service life is prolonged, and the fastening portion 42 is deformed toward the receding slot 415.

As shown in fig. 1 and 3, a plurality of positioning protrusions 44 are formed by protruding rearward from the rear end surface of the main body 41, in this embodiment, the number of the positioning protrusions 44 corresponds to the number of the positioning slots 112, and two positioning protrusions 44 are also provided, and each positioning protrusion 44 is inserted rearward into one of the positioning slots 112 to position the plug connector 200 with respect to the receptacle connector 100.

As shown in fig. 1, 8 and 9, the latch arm 45 projects rearwardly into the recess 141 and above the rear wall 11. The latch arm 45 has a first elastic arm 451 extending upward and rearward from the top surface 411 of the body 41 and a second elastic arm 452 extending forward from the first elastic arm 451, the second elastic arm 452 is located above the first elastic arm 451 and a separation groove 453 is formed therebetween, and the latch arm 45 has a latch portion 454 disposed on the first elastic arm 451, a pressing portion 455 disposed on the second elastic arm 452, a protruding portion 456, a first blocking portion 457 and a second blocking portion 458.

As shown in fig. 1, 8 and 9, the first elastic arm 451 is provided with a supporting portion 4511, a horizontal portion 4512, an offset portion 4513 and a connecting portion 4514, the supporting portion 4511 is vertically and upwardly extended from the top surface 411, the horizontal portion 4512 is horizontally and rearwardly extended from the supporting portion 4511, the offset portion 4513 is formed by rearwardly and obliquely upwardly extended from the horizontal portion 4512, the connecting portion 4514 extends between the offset portion 4513 and the locking portion 454, the offset portion 4513 makes the connecting portion 4514 higher than the supporting portion 4511, the locking portion 454 is downwardly protruded from the connecting portion 4514, and when the pressing portion 455 is pressed down, the first stopping portion 457 abuts against the supporting portion 4511.

As shown in fig. 1, 8 and 9, the latch portion 454 of the first elastic arm 451 faces downward to latch the holding portion 15, and the latch portion 454 extends rearward beyond the rear end surface of the main body 41 and is disposed higher than the top surface 411 of the main body 41 in the vertical direction.

As shown in fig. 1, 8 and 9, the second elastic arm 452 includes a first portion 4521 connected to the rear end of the first elastic arm 451 and a second portion 4522 formed by extending forward from the first portion 4521, a front end surface of the second portion 4522 is located behind the through hole 414, a top surface of the second portion 4522 is lower than a top surface of the first portion 4521, and a bottom surface of the second portion 4522 is lower than a bottom surface of the first portion 4521. The joint of the first portion 4521 and the first elastic arm 451 extends rearward beyond the rear end surface of the main body portion 41. The pressing portion 455 protrudes upward from the top surface of the front end of the second portion 4522, the pressing portion 455 is located in front of the first stopping portion 457, a protruding portion 456 protrudes downward from the bottom surface of the front end of the second portion 4522, the first stopping portion 457 is formed on the bottom surface of the rear end of the second portion 4522, the second stopping portion 458 is formed at the bottom end of the protruding portion 456, the first stopping portion 457 is located in front of the locking portion 454, the second stopping portion 458 is located in front of the first stopping portion 457, the second stopping portion 458 and the pressing portion 455 are aligned up and down, and the locking portion 454 and the second stopping portion 458 are both located below the first stopping portion 457. A distance between the first stopper 457 and the first elastic arm 451 in the vertical direction is defined as a first distance D1, a distance between the second stopper 458 and the top surface 411 of the main body 41 in the vertical direction is defined as a second distance D2, a distance between the second stopper 458 and the first elastic arm 451 in the vertical direction is defined as a third distance D3, the first distance D1 is smaller than the second distance D2, and the first distance D1 is smaller than the third distance D3.

As shown in fig. 9, 10 and 11, the first stopping portion 457 abuts the first elastic arm 451 downward before the second stopping portion 458 abuts the top surface 411 of the main body 41 downward, the first stopping portion 457 abuts the first elastic arm 451 downward and then continuously presses the pressing portion 455 downward, so that the locking portion 454 and the retaining portion 15 are disengaged from each other only after the locking portion 454 continues to move upward, and the second stopping portion 458 abuts the top surface 411 of the main body 41 downward to prevent the second elastic arm 452 from being pressed down excessively and prevent the locking arm 45 from being broken from the main body 41.

As shown in fig. 1 and 9, the butt terminal 5 is formed by press-forming a metal plate, the butt terminals 5 are accommodated in the accommodating holes 412 in a one-to-one correspondence, and each butt terminal 5 is provided with a base portion 51 accommodated in the accommodating hole 412, a butt portion 52 extending rearward from the base portion 51, and a wire connecting portion 53 extending forward from the base portion 51. A blocking portion 511 extending upward is disposed on the base 51, the blocking portion 511 is formed by tearing the plate surface of the base 51, and the blocking portion 511 protrudes into the corresponding through hole 414 to prevent the docking terminal 5 from exiting the receiving hole 412. The abutting portion 52 is provided with two abutting elastic pieces 521 extending backwards, the two abutting elastic pieces 521 are used for clamping the contact portion 22 in the left-right direction, and the two abutting elastic pieces are electrically connected. The wire connecting portion 53 is used to connect the cable (not shown).

In summary, the plug connector and the connector assembly having the plug connector of the present invention have the following advantages:

(1) the latch arm 45 is provided with the first elastic arm 451 and the second elastic arm 452 extending forwards from the first elastic arm 451, the second elastic arm 452 is located above the first elastic arm 451, the front end of the second elastic arm 452 passes forwards over the first elastic arm 451, and a separation groove 453 is formed between the first elastic arm 451 and the second elastic arm 452, so that the length of the overall arm of force of the latch arm 45 is increased, the elasticity is good, the latch arm 45 is not easy to fatigue, and the service life is prolonged; the second elastic arm 452 is provided with the first stopping portion 457 located in front of the latch portion 454 and the second stopping portion 458 located in front of the first stopping portion 457, the pressing portion 455 located on the second elastic arm 452 is pressed downward, the first stopping portion 457 abuts the first elastic arm 451 downward before the second stopping portion abuts the top surface 411 of the main body 41 downward, the first stopping portion 457 abuts the first elastic arm 451 downward and then continues to press the second elastic arm 452 downward, so that the latch portion 454 and the latching portion 15 are disengaged from each other only after the latch portion 454 continues to move upward, the second stopping portion 458 abuts the top surface 411 of the main body 41 downward to restrain the second elastic arm 452 from being pressed downward excessively, so that a movable supporting point for the upward movement of the latch portion 454 is formed on the first elastic arm 451, the first elastic arm 451 is not connected with the main body 41 to generate excessive stress, but the stress is distributed on the first elastic arm 451 and the second elastic arm 452, and the lever principle is utilized to facilitate the upward movement of the latch part 454 to realize the mutual tripping of the latch part 454 and the buckling part 15, so that the length of the force arm of the latch arm 45 is increased, and meanwhile, the latch arm 45 is ensured to occupy smaller space, and the practical requirement is met.

(2) The blocking portion 511 of the butt terminal 5 protrudes into the through hole 414 to prevent the butt terminal 5 from exiting the accommodating hole 412, and the front end surface of the second arm 125 is located behind the through hole 414, so as to facilitate the molding of the slider of the through hole 414 for demolding.

(3) The protrusion 413 is disposed in front of the corresponding conductive terminal 2, so as to limit the conductive terminal 2 from being excessively inserted into the corresponding receiving hole 412 forward, and ensure stable conduction between the conductive terminal 2 and the mating terminal 5.

(4) The left side and the right side of the insulating body 4 are respectively provided with the guide parts 43 which are positioned correspondingly below the buckling parts 42, the guide parts 43 respectively exceed the buckling parts 42 forwards and backwards, in the butt joint process of the socket connector 100 and the plug connector 200, the guide parts 43 correspond to the lower parts of the buckling parts 127, so that the insulating body 4 is inserted backwards into the butt joint space 13, the plug connector 200 can be prevented from excessively moving upwards in the installation process, and the accurate matching of the two is facilitated.

(5) By the elastic arm 121 having the first arm 124 extending forward from the extension arm 120 and the second arm 125 bending and extending backward from the first arm 124, the second arm 125 being connected backward to the rear wall 11, the slot 122 passing forward is formed between the first arm 124 and the extension arm 120, the through slot 126 is formed between the second arm 125 and the first arm 124, the latch portion 127 is disposed on a side of the second arm 125 away from the first arm 124, and the latch portion 127 is disposed corresponding to the through slot 126 and the slot 122 in the left-right direction, that is, by the "n" shaped structure of the elastic arm 121, the overall length of the elastic arm 121 deformed is increased, so that the elastic arm 121 becomes more elastic, and the number of inserting and removing of the plug connector 100 and the plug connector 200 is increased, the service requirement is met, the service life of the elastic arm 121 is prolonged, and the processing cost is saved.

(6) The slot 122 includes the first groove 122a and the second groove 122b connected to the rear end of the first groove 122a, the first groove 122a penetrates the sidewall 12 forward, the width W1 of the front end of the first groove 122a in the left-right direction is greater than the width W2 of the rear end in the left-right direction, which provides a sufficient yielding space for the elastic arm 121 to deform in the left-right direction, so as to prevent the first arm 124 from colliding with the extension arm 120, resulting in damage to the insulating base 1.

(7) Each of the extension arms 120 is fixed with one of the fixing members 3, the fixing member 3 is provided with the fixing portion 31 and the mounting portion 32, the fixing portion 31 is fixed to the side wall 12 at the rear of the slot 122 in an interference manner, so that the fixing member 3 can be fixed to the side wall 12 avoiding the slot 122, the side wall 12 is not damaged by an interference force given by the fixing member 3, the mounting portion 32 is located in front of the fastening portion 127, the soldering portion 23 of the conductive terminal 2 is exposed to the rear wall 11 and is soldered to the circuit board 300, the mounting portion 32 is configured to be mounted on the circuit board 300, and the front end and the rear end of the receptacle connector 100 can be simultaneously located on the circuit board 300.

(8) The insulating base 1 further includes the top wall 14 connected to the rear wall 11, the top wall 14 is located above the abutting space 13, the left and right sides of the front end of the top wall 14 are respectively recessed backward with the grooves 142, the grooves 142 are adjacent to the corresponding second arms 125, the rear ends of the grooves 142 are located behind the corresponding buckling parts 127, so as to provide enough space for molding the buckling parts 127; the buckling part 42 is exposed to the corresponding groove 142, so that whether the buckling part 127 and the buckling part 42 are buckled in place or not can be conveniently detected, and the situation that the buckling part and the buckling part are not buckled is prevented.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. A plug connector for mating with a receptacle connector, comprising;

an insulating body, including a main body and a latch arm, the latch arm has a first elastic arm extending upward and backward from the top surface of the main body and a second elastic arm extending forward from the first elastic arm, the second elastic arm is located above the first elastic arm, and the front end of the second elastic arm passes forward over the first elastic arm, a separation groove is formed between the first elastic arm and the second elastic arm, the first elastic arm has a downward latch part for latching a latch holding part of the socket connector, the second elastic arm is provided with a first stop part located in front of the latch part and a second stop part located in front of the first stop part, the latch arm is provided with a pressing part on the second elastic arm, the pressing part is pressed downward, the first stop part is abutted downward against the first elastic arm before the second stop part abuts against the top surface of the main body, the first blocking part is abutted with the first elastic arm downwards and then continuously presses the pressing part downwards, so that the locking part and the buckling holding part are mutually released only after the locking part continuously moves upwards, and the second blocking part is abutted with the top surface of the main body part downwards to inhibit the second elastic arm from being excessively pressed downwards;

the butt-joint terminal is arranged on the insulating body and is provided with a butt-joint part for being in conductive connection with at least one conductive terminal of the socket connector.

2. The plug connector of claim 1, wherein: the locking part and the second blocking part are both positioned below the first blocking part.

3. The plug connector of claim 1, wherein: the pressing part is formed by upward protruding from the front end of the second elastic arm, a protruding part is formed by downward protruding from the second elastic arm, the second blocking part is formed at the bottom end of the protruding part, and the pressing part and the second blocking part are arranged in an up-and-down alignment mode.

4. The plug connector of claim 1, wherein: the pressing part is positioned in front of the first blocking part.

5. The plug connector of claim 1, wherein: the distance between the first stopping part and the first elastic arm in the vertical direction is smaller than the distance between the second stopping part and the first elastic arm in the front-back direction.

6. The plug connector of claim 1, wherein: the locking part is positioned behind the main body part and is higher than the top surface of the main body part in the vertical direction.

7. The plug connector of claim 1, wherein: the first elastic arm is provided with a supporting part, a deflection part and a connecting part, the supporting part vertically extends upwards from the top surface of the main body part, the connecting part extends between the deflection part and the lock catch part, the deflection part enables the connecting part to be higher than the supporting part, the lock catch part is formed by downward protruding from the connecting part, and the pressing part is pressed downwards to enable the first blocking part to abut against the supporting part.

8. The plug connector of claim 1, wherein: the second elastic arm is provided with a first portion connected with the first elastic arm and a second portion formed by extending the first portion forwards, the pressing portion is formed by protruding the second portion upwards, and the top surface of the second portion is lower than that of the first portion.

9. The plug connector of claim 1, wherein: the main body part is provided with at least one accommodating hole for accommodating at least one butt-joint terminal and at least one through hole penetrating through the top surface of the main body part, the main body part penetrates through the accommodating holes from front to back, each through hole is communicated with one of the accommodating holes, each butt-joint terminal is provided with a blocking part, the blocking part protrudes into the through hole to prevent the butt-joint terminal from exiting from the accommodating hole, and the front end surface of the second elastic arm is positioned behind the through hole.

10. A connector assembly, comprising;

the socket connector comprises an insulating seat and at least one conductive terminal arranged on the insulating seat, wherein the insulating seat comprises a rear wall and two side walls positioned on the left side and the right side of the rear wall, the rear wall and the two side walls enclose a butting space, the rear wall is provided with a buckling part, and the conductive terminal is provided with a contact part exposed in the butting space;

a plug connector inserted into the butt space, the plug connector including an insulating body and at least one butt terminal disposed on the insulating body, the insulating body having a main body and a latch arm, the latch arm having a first resilient arm extending upward and rearward from a top surface of the main body and a second resilient arm extending forward from the first resilient arm, the second resilient arm being disposed above the first resilient arm and a front end of the second resilient arm passing forward over the first resilient arm, a separation groove being formed between the first resilient arm and the second resilient arm, the first resilient arm having a downwardly facing latch portion for latching the latch portion, the second resilient arm having a first stop portion disposed in front of the latch portion and a second stop portion disposed in front of the first stop portion, the latch arm having a pressing portion disposed on the second resilient arm, the pressing part is pressed downwards, the first blocking part is abutted with the first elastic arm downwards before the second blocking part is abutted with the top surface of the main body part downwards, the first blocking part is abutted with the first elastic arm downwards and then continuously pressed downwards to enable the locking part to continuously move upwards to realize mutual tripping of the locking part and the buckling part, and the second blocking part is abutted with the top surface of the main body part downwards to inhibit the second elastic arm from excessively pressing downwards.

11. The connector assembly of claim 10, wherein: the pressing part is formed by upward protruding from the front end of the second elastic arm, a protruding part is formed by downward protruding from the second elastic arm, the second blocking part is formed at the bottom end of the protruding part, and the pressing part and the second blocking part are arranged in an up-and-down alignment mode.

12. The connector assembly of claim 10, wherein: the first elastic arm is provided with a supporting portion extending upwards from the top surface of the main body portion, a horizontal portion extending backwards from the supporting portion, a deflection portion extending backwards and obliquely upwards from the horizontal portion, and a connecting portion extending from the rear end of the deflection portion, the locking portion extends downwards from the rear end of the connecting portion, and the first blocking portion is located right above the supporting portion.

13. The connector assembly of claim 10, wherein: the main body part is provided with at least one accommodating hole for accommodating at least one butt-joint terminal and at least one through hole penetrating through the top surface of the main body part, the main body part penetrates through the accommodating holes from front to back, each through hole is communicated with one of the accommodating holes, each butt-joint terminal is provided with a blocking part, the blocking part protrudes into the through hole to prevent the butt-joint terminal from exiting from the accommodating hole, and the front end surface of the second elastic arm is positioned behind the through hole.

14. The connector assembly of claim 10, wherein: the insulating body is provided with at least one accommodating hole for accommodating the at least one butting terminal correspondingly and a lug corresponding to each accommodating hole, and the lug is positioned in front of the corresponding conductive terminal and used for limiting the conductive terminal from being excessively inserted into the corresponding accommodating hole forwards.

15. The connector assembly of claim 10, wherein: each side wall comprises an extension arm and an elastic arm which is arranged close to the butt joint space relative to the extension arm, the elastic arm is provided with a first arm extending forwards from the extension arm and a second arm bending reversely from the first arm and extending backwards, the second arm is connected with the rear wall backwards, a groove penetrating forwards is formed between the first arm and the extension arm, a through groove is formed between the second arm and the first arm, a buckling part is arranged on one side of the second arm, which is far away from the first arm, and the buckling part is arranged corresponding to the through groove and the groove in the left-right direction; the left side and the right side of the main body part are respectively provided with a buckling part correspondingly buckled with the buckling part for buckling the plug connector and the socket connector.

16. The connector assembly of claim 15, wherein: the through slot extends rearwardly beyond the slot.

17. The connector assembly of claim 15, wherein: the slotted structure comprises a side wall, a slotted groove and a plurality of slots, wherein the slotted groove comprises a first groove and a second groove connected with the rear end of the first groove, the first groove penetrates through the side wall forwards, and the width of the front end of the first groove in the left-right direction is larger than that of the rear end of the first groove in the left-right direction.

18. The connector assembly of claim 15, wherein: each extension arm is fixed with a mounting, the mounting is equipped with a holding portion and an installation department, holding portion is in slotted rear interference is fixed in the lateral wall, the installation department is used for installing in a circuit board.

19. The connector assembly of claim 15, wherein: the insulating seat further comprises a top wall connected with the rear wall, the top wall is located above the butt joint space, a groove is formed in the left side and the right side of the front end of the top wall in a backward concave mode respectively, the groove is adjacent to the corresponding second arm, the buckling portion is located behind the buckling portion, and the buckling portion is exposed out of the corresponding groove.

20. The connector assembly of claim 15, wherein: the left side and the right side of the insulating body are respectively provided with a guide part which is positioned below the corresponding buckling part, the guide parts respectively exceed the buckling parts forwards and backwards, and in the butt joint process of the socket connector and the plug connector, the guide parts guide the insulating body to be inserted into the butt joint space backwards under the corresponding buckling parts.