CN215911675U

CN215911675U - Electrical connector

Info

Publication number: CN215911675U
Application number: CN202121919142.XU
Authority: CN
Inventors: 向兴海; 朱自强
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-25
Anticipated expiration: 2031-08-17

Abstract

An electric connector comprises an insulating shell and a secondary lock, wherein the insulating shell is provided with a latch piece and a channel, the latch piece comprises a latch part and a pressing part so as to be connected with a fulcrum of the insulating shell, and the secondary lock comprises an operating part, an elastic arm extending forwards from the operating part and elastic latch arms extending outwards from two sides of the operating part; the latch piece also comprises a lock catch frame opening, the elastic arm is provided with a limiting part extending downwards and a pressing part which is positioned in front of the limiting part and protrudes downwards, and when the secondary lock is in an unlocking state, the pressing part and the limiting part enter the lock catch frame opening and are respectively positioned at the front end and the rear end of the lock catch frame opening so as to realize self-locking; when the secondary lock is in a lock catch state, the limiting part moves to the upper part of the lock catch part and enters a space between the lock catch part and the inner wall surface of the insulating shell so as to prevent the lock catch part from tilting and unlocking. So set up, the secondary lock is filled in the space between bolt spare and insulating casing internal wall under the hasp state, thereby reduces and lifts the space on the bolt spare and avoid bolt spare pine to take off the unblock.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly, to an electrical connector with a secondary lock.

[ background of the utility model ]

For connectors used in automotive or industrial applications, they are more susceptible to vibration shocks than conventional connectors. In this case, the electric connector cannot ensure its stability by an interference connection or a primary locking fixing method, and in the case of mounting a cable, a cable shielding layer for ground shielding may be in poor contact with a corresponding contact, resulting in poor ground shielding effect.

Therefore, there is a need for a retrofit for existing electrical connectors to overcome the above-mentioned deficiencies.

[ Utility model ] content

The utility model aims to provide an electric connector which is stable in butt joint and is not easily influenced by external force.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an electric connector comprises an insulating shell and a secondary lock mounted on the insulating shell, wherein the insulating shell is provided with a latch piece and a channel for the secondary lock to slide back and forth, the latch piece comprises a latch part at the front end, a pressing part at the rear end and a fulcrum positioned in the middle and connected with the insulating shell, and the secondary lock comprises an operating part, an elastic arm extending forwards from the operating part and elastic latch arms extending outwards from two sides of the operating part; the latch piece also comprises a latch frame opening extending between the latch part and the pressing part, the elastic arm is provided with a limiting part extending downwards and a pressing part which is positioned in front of the limiting part and protrudes downwards, and when the secondary lock is in an unlocking state, the pressing part and the limiting part enter the latch frame opening and are respectively positioned at the front end and the rear end of the latch frame opening so as to realize self-locking; when the secondary lock is in a lock catch state, the limiting part moves to the position above the lock catch part and enters a space between the lock catch part and the inner wall surface of the insulating shell to prevent the lock catch part from tilting and unlocking.

an electric connector comprises an insulating inner shell, a shielding piece and a cable assembly, wherein the shielding piece surrounds the insulating inner shell and is provided with a rear cover which is attached to the rear end face of the insulating inner shell, the rear cover is provided with a through hole for the cable assembly to pass through, the insulating inner shell is provided with an accommodating groove which penetrates backwards, the cable assembly comprises a cable sheath and a cable which enter the accommodating groove, and the cable is provided with a shielding layer surrounded by the cable sheath; the electric connector further comprises a crown spring arranged in the accommodating groove, the crown spring is respectively contacted with the cable sheath and the shielding part, and the cable is electrically connected with the shielding part through the contact of the sheath and the crown spring.

Compared with the prior art, the utility model has the following beneficial effects: the secondary lock is filled in a space between the latch element and the inner wall surface of the insulating shell in a locking state, so that the lifting space of the latch element is reduced, and the latch element is prevented from being released and unlocked; meanwhile, the crown spring is respectively contacted with the cable sheath and the shielding piece, so that even if the crown spring is pulled by external force, the stable electric connection between the cable shielding layer and the shielding piece cannot be influenced.

[ description of the drawings ]

Fig. 1 is a perspective view of an electrical connector and its mating connector of the present invention in an unlocked state.

Fig. 2 is an exploded view of the electrical connector shown in fig. 1.

Fig. 3 is a perspective view of the secondary lock shown in fig. 2.

Fig. 4 is a perspective view of the insulating housing shown in fig. 2.

Fig. 5 is a perspective view of the electrical connector shown in fig. 2 without an insulating housing.

Fig. 6 is a perspective view of the other viewing angle shown in fig. 5.

Fig. 7 is an exploded view of fig. 5.

Fig. 8 is a cross-sectional view taken along the dotted line a-a shown in fig. 5.

Fig. 9 is a perspective view of the secondary lock and latch member in a cutaway state.

Fig. 10 is a cross-sectional view taken along the dashed line B-B shown in fig. 1.

Fig. 11 is a cross-sectional view of the electrical connector of fig. 10 mated with a mating connector.

Fig. 12 is a cross-sectional view of the electrical connector of fig. 10 in a latched state with a mating connector.

[ detailed description ] embodiments

Referring to fig. 1 to 12, an electrical connector 100 according to the present invention includes an insulative housing 1 and a secondary latch 2 mounted to the insulative housing 1. The insulating housing 1 is provided with a latch 11 and a channel 12 for the secondary lock 2 to slide back and forth. The latch 11 includes a locking portion 111 at the front end, a pressing portion 112 at the rear end, and a fulcrum 113 located in the middle and connected to the insulating housing 1. The secondary lock 2 includes an operating portion 21, elastic arms 22 extending forward from the operating portion 21, and elastic snap arms 23 extending outward from both sides of the operating portion 21. The latch 11 further includes a latch bezel 114 extending between the latching portion 111 and the pressing portion 112. The elastic arm 22 has a downwardly extending limiting portion 221 and a pressing portion 222 located in front of the limiting portion 221 and protruding downward. When the secondary lock 2 is in the unlocked state, the pressing portion 222 and the limiting portion 221 enter the lock catch frame opening 114 and are respectively located at the front end and the rear end of the lock catch frame opening 114 to achieve self-locking, that is, a certain gap is formed between the front end of the pressing portion 222 and the inner wall surface of the front end of the lock catch frame opening 114 in an abutting mode or at an interval, and a certain gap is formed between the rear end surface of the limiting portion 221 and the inner wall surface of the rear end of the lock catch frame opening 114 in an abutting mode or at an interval, so that the secondary lock 2 is limited by the lock catch frame opening 114 and cannot move back and forth, and the self-locking function is achieved. When the secondary lock 2 is in the locked state, the limiting portion 221 moves above the locking portion 111 and enters a space between the locking portion 111 and the inner wall surface of the insulating housing 1, so as to prevent the locking portion 111 from tilting and unlocking. When the secondary lock 2 is unlocked from the locked state, an external force presses the pressing part 112 of the latch 11 to enable the front-end latch part 111 to upwarp for a certain amount to float so as to realize unlocking and tripping, and the upwarp space is a space between the latch 11 and the inner wall surface of the insulating shell 1; therefore, by moving the pressing portion 222 of the secondary lock 2 into the upwarping space, the space for lifting the latch 11 can be reduced, and the latch 11 cannot be upwarped to a height that can be unlocked.

Referring to fig. 10, the electrical connector 100 and the mating connector 200 are in an unlocked state or a state before being mated, at this time, the secondary lock 2 is in a self-locking state, and the pressing portion 222 and the limiting portion 221 of the elastic arm 22 are limited in the lock frame opening 114. Referring to fig. 11, in a state where the electrical connector 100 is in a mated state, the secondary lock 2 in a self-locking state starts to contact with the locking protrusion 201 disposed on the mating connector 200, the locking protrusion 201 has a guiding slope and gradually moves toward the secondary lock 2 along with the insertion of the electrical connector 100 and lifts it upward, and when the locking protrusion 201 moves into the locking frame opening 114, the pressing portion 222 of the secondary lock 2 is lifted out of the locking frame opening 114 by the locking protrusion 201, so that the secondary lock 2 is separated from the self-locking state. Referring to fig. 11, the pressing portion 222 moves forward to the locking position after being disengaged from the self-locking state, reaches above the locking portion 111 of the latch 11, and enters into the space between the locking portion 111 and the inner wall surface of the insulating housing 1, and in this embodiment, the pressing portion 222 can press downward against the upper surface of the locking portion 111 due to the elastic force of the elastic arm 22 of the secondary lock 2, so as to ensure the locking effect. When unlocking is required, the secondary lock 2 is moved backward to the rear of the locking part 111, the operating part 21 is pressed down to deflect the pressing part 112 downward, the locking part 111 is lifted up and unlocked by utilizing the lever principle of the fulcrum 113, and at this time, the electrical connector 100 can be pulled out from the mating connector 200.

Referring to fig. 4, the channel 12 includes a pair of side walls 121, the channel 12 is provided with a slide groove 122 adjacent to the upper end of the side walls 121, and the secondary lock 2 slides back and forth along the slide groove 122 and is spaced from the bottom surface of the channel 12. The end of the latch arm 23 is provided with a latch protrusion 231, the side wall 121 is provided with a latch notch 123 matching with the latch protrusion 231, when the secondary lock 2 is in a latch state, the latch protrusion 231 of the latch arm 23 moves along the sliding slot 122 and is latched to the latch notch 123, so as to prevent the secondary lock 2 from moving back out of the latch position. The secondary lock 2 is suspended in the slot 12 by engaging with the sliding slot 122 on the side wall 121 of the slot 12, so that after the operating portion 21 is pressed down by an improper external force, the operating portion 21 is supported by the sliding slot 122 without pressing down the pressing portion 112 of the latch 11 excessively, and the pressing portion 112 is prevented from being deflected excessively downwards and damaged.

The secondary lock 2 further includes guide portions 24 extending forward from the operating portion 21 and located at both sides of the elastic arm 22, and the latch 11 has a certain distance between both sides thereof and the insulating housing 1 to form a guide rail 115 along which the guide portions 24 slide. The guide portion 24 is formed with a slider 241 at its front end projecting downward, the slider 241 entering into the guide rail 115 to slide the guide portion 24 along the guide rail.

The bottom of the operation portion 21 is recessed to form a covering space 212 having a rear wall 211, and the rear wall 212 cooperates with the guiding portion 24 and the limiting portion 221 to cover the pressing portion 112 in the covering space 212. The stopper 221 is a rib extending gradually downward from the front end of the elastic arm 22. The latch arms 23 are formed by extending obliquely outward from both sides of the bottom of the rear wall 211, and the latch arms 23 are provided at their roots with projections 232 projecting outward. With this arrangement, the pressing portion 112 of the latch 11 is covered by the covering space 212, so that the pressing portion 112 is prevented from being damaged by an external force, and the sliding groove 122 supports the latch arm 23 to prevent the pressing portion 112 from being damaged by pressing down the operating portion 21 covered above the pressing portion 112.

The insulating housing 1 includes a top wall 13 above the latch 11, the top wall 13 extending forward from a rear end surface thereof to above the locking portion 111 to form a recess 131 facing the latch 11, and the elastic arm 22 further protruding forward from a front end thereof to form a protrusion 223, the protrusion 223 being located forward of the recess 131 when the secondary lock 2 is in the locked state.

The electrical connector 100 further comprises an insulating inner housing 3 within the insulating outer housing 1, a shield 4 and a cable assembly 5. The shielding element 4 surrounds the inner insulating housing 2 and has a rear cover 41 attached to the rear end surface of the inner insulating housing 3, the rear cover 41 has a through hole 411 for the cable assembly 5 to pass through, the inner insulating housing 3 has a receiving slot 31 penetrating backwards, the cable assembly 5 includes a cable sheath 51 and a cable 52 entering the receiving slot 31, the cable 52 has a shielding layer 521 surrounded by the cable sheath 51, and the cable sheath 51 contacts with the shielding layer 521, as shown in fig. 8. The electrical connector 100 further includes a crown spring 6 mounted in the receiving slot 31, the crown spring 6 is respectively in contact with the cable sheath 51 and the shielding element 4, and the cable 52 is electrically connected to the shielding element 4 through the contact between the cable sheath 51 and the crown spring 6. The crown spring 6 comprises a spring piece 61 bent inwards and a contact spring piece 62 extending outwards out of the accommodating groove 31, the contact spring piece 62 abuts against the rear cover 41, and the cable sheath 51 is in contact with the spring piece 61. With the arrangement, the crown spring 6 is respectively contacted with the cable sheath 51 and the shielding element 4, so that the electric connection between the cable shielding layer 521 and the shielding element 4 is realized; meanwhile, since the spring leaves 61 of the crown spring 6 are arranged around the cable sheath 51, even if the cable 52 is pulled and deflected by an external force, the stable electrical connection between the cable shielding layer 521 and the shielding member 4 can be ensured. Of course, in other embodiments, conductive plastic may be used to surround the cable sheath and fill the shield, instead of the crown spring, to achieve the electrical connection between the shield and the cable sheath.

In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby. All such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.

Claims

1. An electric connector comprises an insulating shell and a secondary lock mounted on the insulating shell, wherein the insulating shell is provided with a latch piece and a channel for the secondary lock to slide back and forth, the latch piece comprises a latch part at the front end, a pressing part at the rear end and a fulcrum positioned in the middle and connected with the insulating shell, and the secondary lock comprises an operating part, an elastic arm extending forwards from the operating part and elastic latch arms extending outwards from two sides of the operating part; the method is characterized in that: the latch piece also comprises a latch frame opening extending between the latch part and the pressing part, the elastic arm is provided with a limiting part extending downwards and a pressing part which is positioned in front of the limiting part and protrudes downwards, and when the secondary lock is in an unlocking state, the pressing part and the limiting part enter the latch frame opening and are respectively positioned at the front end and the rear end of the latch frame opening so as to realize self-locking; when the secondary lock is in a lock catch state, the limiting part moves to the position above the lock catch part and enters a space between the lock catch part and the inner wall surface of the insulating shell to prevent the lock catch part from tilting and unlocking.

2. The electrical connector of claim 1, wherein: the channel includes a pair of lateral wall, the upper end department that the channel is close to the lateral wall is equipped with the spout, secondary lock along the spout slides back and forth and with the certain distance of channel bottom surface interval.

3. The electrical connector of claim 2, wherein: the end of the buckle arm is provided with a buckle protrusion, the side wall is provided with a buckle notch matched with the buckle protrusion, and when the secondary lock is in a buckle state, the buckle protrusion is buckled to the buckle notch.

4. The electrical connector of claim 1, wherein: the secondary lock further comprises guide parts which extend forwards from the operation part and are positioned on two sides of the elastic arm, a certain distance is reserved between the latch part and the insulating shell to form a guide rail, and the guide parts slide along the guide rail.

5. The electrical connector of claim 4, wherein: the bottom of the operation part is concave inwards to form a covering space with a rear wall, and the rear wall is matched with the guide part and the limiting part to cover the pressing part in the covering space.

6. The electrical connector of claim 2, wherein: the limiting part is a rib which extends backwards and downwards gradually from the front end of the elastic arm.

7. The electrical connector of claim 5, wherein: the buckle arm is formed by extending the two sides of the bottom of the rear wall outwards in an inclined mode, and a convex block protruding outwards is arranged at the root of the buckle arm.

8. The electrical connector of claim 1, wherein: the insulating shell comprises a top wall positioned above the latch piece, the top wall extends forwards from the rear end face of the top wall to the position above the locking part to form a groove facing the latch piece, the elastic arm further protrudes forwards from the front end of the elastic arm to form a protruding part, and when the secondary lock is in a locking state, the protruding part is positioned in front of the groove.

9. An electric connector comprises an insulating inner shell, a shielding piece and a cable assembly, wherein the shielding piece surrounds the insulating inner shell and is provided with a rear cover which is attached to the rear end face of the insulating inner shell, the rear cover is provided with a through hole for the cable assembly to pass through, the insulating inner shell is provided with an accommodating groove which penetrates backwards, the cable assembly comprises a cable sheath and a cable which enter the accommodating groove, and the cable is provided with a shielding layer surrounded by the cable sheath; the method is characterized in that: the electric connector further comprises a crown spring arranged in the accommodating groove, the crown spring is respectively contacted with the cable sheath and the shielding part, and the cable is electrically connected with the shielding part through the contact of the sheath and the crown spring.

10. The electrical connector of claim 9, wherein: the crown spring comprises a reed bent inwards and a contact elastic sheet extending outwards out of the accommodating groove, the contact elastic sheet abuts against the rear cover, and the cable sheath is in contact with the reed.