CN213093477U

CN213093477U - Cable connector and connector assembly

Info

Publication number: CN213093477U
Application number: CN202021771438.7U
Authority: CN
Inventors: 杨文初; 陈伟顺; 刘振兴; 李杭
Original assignee: Amphenol Assembletech Xiamen Co Ltd
Current assignee: Amphenol Assembletech Xiamen Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-30
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a cable connector and connector assembly, cable connector includes insulator and PCB board. One end of the PCB is fixedly arranged on the insulating body, and the other end of the PCB freely extends outwards to form an insertion part. The PCB board is provided with a plurality of butt joint parts, the butt joint parts are arranged on the insulating body at intervals, a first limiting gap is formed between the butt joint parts and the PCB board, the wall surface of the gap where the butt joint parts are located is provided with a guide groove, and at least one guide groove penetrates through the extending end of the butt joint part. When the connector and the plate end connector are plugged, the connector can be smoothly inserted into the plate end connector through the stop block on the butt plate end connector and the guide groove on the connector, the structure is simple, and convenience is brought to a user. And during the grafting, when the butt joint slot that corresponds on the board end connector was aimed at to the insertion part of PCB board, the dog on the butt joint slot of board end connector can block the insertion part entering of PCB board, prevents to insert partially.

Description

Cable connector and connector assembly

Technical Field

The utility model relates to a cable connector and connector assembly.

Background

In the prior art, the connector assembly mainly includes a cable connector and a board end connector mated with the cable connector. The cable connector mainly comprises an insulating body, a PCB fixed on the insulating body and a cable with one end electrically connected with the PCB and extending out of the insulating body, wherein the insulating body is provided with a lock catch; the plate-end connector comprises a butt-joint main body, an upper row of conductive terminals and a lower row of conductive terminals which are inserted into the butt-joint main body, and a metal shell which is coated outside the butt-joint main body, wherein a bayonet is arranged on the metal shell.

The correct butt joint process of the connector and the plate end connector comprises the following steps: the PCB of the cable connector is inserted into the opening of the butt joint main body of the board end connector forwards until the PCB is clamped between the conductive terminals, the metal contact piece at the front end of the PCB is electrically connected with the conductive terminals, and the lock catch is clamped in the bayonet, so that the butt joint of the cable connector and the board end connector is realized.

In the actual use process, the cable connector and the plate end connector are inconvenient to plug due to the lack of a guide structure, and the plugging consumes long time. And because operating personnel's inexpert, the problem of production mistake during grafting is inserted and reverse easily: misplug, namely the PCB of the cable connector is inserted forwards into a gap between the butting body of the board end connector and the metal shell; the reverse plug, i.e. the cable connector, is rotated 180 degrees to be inserted into the board end connector. The metal contact surface of the PCB and the conductive terminal cannot be electrically connected due to the misplug and reverse insertion, or the electrical contact is not tight and is easy to loosen, and the like, so that the use is influenced.

SUMMERY OF THE UTILITY MODEL

To solve the technical problems in the background art, an object of the present invention is to provide a cable connector capable of realizing guided docking.

Another object of the present invention is to provide a connector assembly capable of preventing the cable connector from being erroneously inserted when the cable connector is mated with the board-side connector.

It is another object of the present invention to provide a connector assembly capable of preventing a cable connector from being inserted reversely when the cable connector is mated with a board-side connector.

In a first aspect, a cable connector is provided, which includes an insulative housing and a PCB.

Specifically, one end of the PCB is fixedly arranged on the insulating body and is connected with a cable extending out of the insulating body, and the other end of the PCB freely extends outwards to form an insertion part.

The insulation body is provided with a butt joint part which extends outwards and is arranged at an interval with the PCB, and a first limit gap is formed between the butt joint part and the PCB.

In the first limiting gap, a guide groove for a stop block on the plate end connector to enter is formed in the wall surface where the butt joint part is located, and at least one guide groove penetrates through the extending end of the butt joint part.

When the connector and the plate end connector are plugged, the connector can be smoothly inserted into the plate end connector through the stop block on the butt plate end connector and the guide groove on the connector, the structure is simple, and convenience is brought to a user.

And during the grafting, when the butt joint slot that corresponds on the board end connector was aimed at to the insertion part of PCB board, the dog on the butt joint slot of board end connector can block the insertion part entering of PCB board, prevents to insert partially.

Preferably, one guide groove is arranged in the middle of the first limiting gap.

Preferably, the number of the guide grooves is two, and the two guide grooves are symmetrically arranged on two sides of the first limiting gap.

Preferably, the guide groove is perpendicular to the groove wall of the outward extending direction of the PCB is between the groove bottom of the first limit gap and the end part, close to the metal contact of the insulating body, of the PCB, so that the PCB can be inserted into the bottom of the corresponding mounting groove.

Preferably, the end face of the extending end of the butt joint part is flush with or exceeds the end face of the inserting part of the PCB, so that the inserting part of the PCB can be protected from being scratched and damaged easily.

Preferably, a side baffle extends outwards from the insulating body, the side baffle is arranged on the side portions of the butting portion and the PCB and is arranged at an interval with the side end faces of the butting portion and the PCB, and a second limiting gap is formed between the side baffle and the side end faces of the butting portion and the PCB. After the connector and the plate end connector are installed in a butt joint mode, the shell of the plate end connector is clamped into the second limiting gap, and the side baffle plate protects the outer side of the shell of the plate end connector.

Preferably, the side baffle has one piece, and is arranged on one side of the insulating body; or the side baffle has two pieces, and two sides of the side baffle are arranged on the insulating body.

Preferably, the end of the side baffle plate extending outwards is flush with or exceeds the end face of the insertion part of the PCB.

Preferably, the end surface of the side baffle, which is far away from the butt joint part, is provided with a lower baffle plate facing the second limiting gap; or a lower baffle plate which is consistent with the extending direction of the PCB is arranged at one end of the insulating body, which is far away from the butting part, and the distance from the lower baffle plate to the side baffle plate is smaller than the width of the second limiting gap and smaller than the thickness of the shell of the board end connector; when the connector is plugged into the board-end connector, the inner wall surfaces of the side baffle and the lower baffle face the outer wall surface of the shell of the board-end connector, and by arranging the lower baffle, when the insertion part of the PCB is aligned to the butt joint slot of the board-end connector, the shell of the board-end connector corresponding to the lower baffle abuts against the shell, and the main-gear connector is inserted into the board-end connector.

Preferably, the two sides of the insulating body are both provided with side baffles, the side baffles on the two sides are both provided with lower baffles, and the opposite ends of the two lower baffles are connected to form an integral lower baffle.

Preferably, the insulating body further comprises a spring piece, the top of the butt joint part is provided with an installation groove, and the spring piece is installed in the installation groove.

Preferably, the shortest distance from the guide groove to the side of the abutting portion is greater than 0.5mm, and the shortest distance from the guide groove to the spring piece is greater than 0.5 mm.

Preferably, the width of the guide groove is 0.5-2 mm.

Preferably, the thickness of the guide groove is 0.3-1.5 mm.

In a second aspect, a connector assembly is provided, which includes a connector and a board end connector, where the board end connector includes a docking body, two rows of conductive terminals inserted into the docking body, and a docking housing covering the docking body, and the docking housing includes a top wall and a side wall; characterized in that the connector adopts the cable connector provided by the first aspect; a butt joint slot for the butt joint part to insert is arranged between the top wall and the butt joint main body; in the butt joint slot, a stop block corresponding to the guide groove is arranged on the butt joint main body.

During the grafting, when the butt joint slot that corresponds on the board end connector was aimed at to the insertion part of PCB board, the dog on the butt joint slot of board end connector can block the insertion part entering of PCB board, prevents to insert partially.

Preferably, one end of the stop block facing the connector is flush with the notch of the docking slot, so that the PCB board can be completely stopped outside the docking slot.

Preferably, the butt joint shell comprises a bottom wall, and a convex hull is arranged on the outer side surface of the bottom wall close to the end part.

Preferably, at least one of the convex hulls.

Preferably, the top wall and a part of the side wall connected with the top wall extend forwards to form a lug for guiding the butting part of the connector to be butted.

Preferably, there are two guide grooves and two corresponding stoppers.

Preferably, the width of the stop block is 0.4-1.8 mm.

Preferably, the height of the stop block is 0.2-1.3 mm.

The utility model has the advantages that:

1. the connector can be smoothly inserted into the plate end connector by arranging the guide groove on the connector, so that the structure is simple and convenience is brought to a user;

2. the stop block is arranged on the board end connector, so that the phenomenon of biased insertion during butt joint can be prevented, a PCB is inserted into the butt joint slot by mistake, and the PCB is prevented from being damaged;

3. by arranging the lower baffle on the connector, the phenomenon of offset insertion or reverse insertion during butt joint can be further prevented, the PCB is inserted into the butt joint slot by mistake, and the PCB is prevented from being damaged;

4. through set up the convex closure on the board end connector, can further prevent to appear anti-inserting when the butt joint, with PCB board misplug butt joint slot, avoid the PCB board to appear damaging.

Drawings

FIG. 1 is a side view of a cable connector according to an embodiment;

FIG. 2 is a second axial view of a cable connector according to an embodiment;

FIG. 3 is a front view of an embodiment of a cable connector;

FIG. 4 is a cross-sectional view of an exemplary cable connector;

FIG. 5 is a side view of the first axial end of the cable connector of the present embodiment;

FIG. 6 is a side view of the second axial end of the cable connector of the present embodiment;

FIG. 7 is a cross-sectional view of an embodiment of a cable connector;

FIG. 8 is an isometric view of an embodiment three plate end connector;

FIG. 9 is an isometric view of a three-connector assembly of an embodiment (properly mated);

FIG. 10 is a front view (properly mated) of an embodiment three connector assembly;

FIG. 11 is a cross-sectional view of a three-connector assembly of an embodiment (properly mated);

FIG. 12 is an isometric view of a three-connector assembly of an embodiment (reverse);

FIG. 13 is a front view (reverse) of an embodiment three connector assembly;

FIG. 14 is a cross-sectional view (reverse) of an embodiment three connector assembly;

FIG. 15 is an isometric view of a three-connector assembly of an embodiment (mis-plugged);

FIG. 16 is a front view (misplugged) of an embodiment three-connector assembly;

FIG. 17 is a cross-sectional view (misplugged) of an embodiment three-connector assembly;

FIG. 18 is an isometric view of the connector assembly with the male closure (reverse);

FIG. 19 is a cross-sectional view (reverse) of the connector assembly with the male closure;

the labels in the figures are: the connector 1, the insulating body 11, the mating portion 111, the first limit gap 112, the guide groove 113, the side baffle 114, the second limit gap 115, the lower baffle 116, the PCB 12, the insertion portion 121, the board end connector 2, the mating body 21, the mating insertion slot 211, the stopper 212, the conductive terminal 22, the mating housing 23, the top wall 231, the side wall 232, and the convex hull 233.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The first embodiment is as follows:

referring to fig. 1 to 4, a cable connector 1 includes an insulative housing 11 and a PCB 12.

One end of the PCB 12 is fixedly disposed on the insulating body 11 and connected to a cable extending out of the insulating body 11, and the other end freely extends outward to form an insertion portion 121.

The insulating body 11 extends outward to form a butting portion 111 spaced from the PCB 12, and a first limiting gap 112 is formed between the butting portion 111 and the PCB 12. In this embodiment, the end surface of the extending end of the abutting portion 111 is flush with the end surface of the insertion portion 121 of the PCB 12, so that the insertion portion 121 of the PCB 12 is protected from being scratched and damaged. Of course, in other embodiments, the length of the interface portion 111 can exceed the extended length of the PCB board 12.

In first spacing clearance 112, the wall at butt joint portion 111 place is seted up and is supplied the guide way 113 that dog 212 on board end connector 2 got into, and guide way 113 has two, and link up the extension end of butt joint portion 111, and in this embodiment, the width of guide way 113 is 1mm, and thickness is 0.8mm, just guide way 113 reaches the shortest distance of the lateral part of butt joint portion 111 is 1 mm.

When the connector 1 and the plate end connector 2 are plugged, the connector 1 can be smoothly inserted into the plate end connector 2 through the stop 212 on the butt plate end connector 2 and the guide groove 113 on the connector 1, the structure is simple, and convenience is brought to a user.

When the insertion portion 121 of the PCB 12 is aligned with the corresponding mating slot 211 of the board-end connector 2 during plugging, the stopper 212 of the mating slot 211 of the board-end connector 2 can block the insertion portion 121 of the PCB 12 from entering, thereby preventing the plugging deviation.

Referring to fig. 4, in the present embodiment, in order to ensure that the PCB 12 can be completely inserted into the corresponding mounting groove and the circuit is well connected, the groove wall of the guiding groove 113 perpendicular to the outward extending direction of the PCB 12 is located between the groove bottom of the first limiting gap 112 and the end of the metal contact on the PCB 12 close to the insulating body 11.

Further, in order to enhance the protection of the housing of the board end connector 2 and improve the stability, reliability and convenience of the butt joint, a side baffle 114 extends outwards from the insulating body 11, the side baffle 114 is disposed at the side of the butt joint portion 111 and the PCB 12 and is spaced from the side end surface of the butt joint portion 111 and the PCB 12, and the side baffle 114 forms a second limiting gap 115 with the side end surface of the butt joint portion 111 and the PCB 12. In this embodiment, the side baffles 114 are symmetrically disposed on two sides of the insulating body 11, and the end portions of the side baffles 114 extending outward are flush with the end surface of the insertion portion 121 of the PCB 12.

When the connector 1 and the plate-end connector 2 are mounted in a butt joint manner, the housing of the plate-end connector 2 is clamped into the second limiting gap 115, and the side baffle 114 protects the outer side of the housing of the plate-end connector 2.

Example two:

in order to further prevent the occurrence of the offset insertion during the docking, the PCB 12 is inserted into the docking slot 211 by mistake, and the PCB 12 is prevented from being damaged, on the basis of the first embodiment, the end surface of the side baffle 114, which is far away from the docking portion 111, is provided with the lower baffle 116 facing the second limiting gap 115. Referring to fig. 5 to 7, preferably, the side guards 114 at both sides are provided with lower guards 116, and opposite ends of the two lower guards 116 are connected to form an integral lower guard 116.

When the connector 1 is plugged into the board-end connector 2, the inner wall surfaces of the side baffle 114 and the lower baffle 116 face the outer wall surface of the shell of the board-end connector 2, and by arranging the lower baffle 116, when the insertion portion 121 of the PCB 12 is aligned with the butt-joint slot 211 of the board-end connector 2, the lower baffle 116 corresponds to the shell of the board-end connector 2 and abuts against the shell, and the main baffle connector 1 is plugged into the board-end connector 2.

Example three:

a connector 1 assembly comprises a connector 1 and a plate end connector 2.

The connector 1 adopts the cable connector 1 as set forth in the first or second embodiment.

Referring to fig. 8, the board-end connector 2 includes a docking body 21, two rows of conductive terminals 22 inserted into the docking body 21, and a docking housing 23 covering the docking body 21, where the docking housing 23 includes a top wall 231 and a side wall 232. A docking slot 211 for inserting the docking portion 111 is formed between the top wall 231 and the docking body 21. In the docking slot 211, a stopper 212 corresponding to the guide slot 113 is disposed on the docking body 21, and in this embodiment, the stopper 212 has a width of 0.9mm and a thickness of 0.7 mm.

When the inserting portion 121 of the PCB 12 is aligned with the corresponding mating slot 211 of the board-end connector 2, the stopper 212 of the mating slot 211 of the board-end connector 2 can block the inserting portion 121 of the PCB 12 from entering, so as to prevent the inserting deviation.

To completely block the PCB board 12 out of the docking slot 211, an end of the stopper 212 facing the connector 1 is flush with the notch of the docking slot 211.

In other embodiments, the docking housing 23 includes a bottom wall, the outer side surface of the bottom wall near the end is provided with a convex hull 233, and the reverse insertion can be prevented by providing the convex hull 233.

The following further explains the three cases of correct plug-in, reverse plug-in and error plug-in with the schematic diagram:

referring to fig. 9 to 11, for correct insertion, the PCB 12 is inserted into the docking body 21, the docking portion 111 is inserted into the docking slot 211, and the stopper 212 is inserted into the guide slot 113.

Referring to fig. 12 to 14, in the reverse insertion condition, the PCB 12 is aligned with the docking body 21, but the lower stop 116 abuts against the docking body 21 or the stopper 212, so that the connector 1 and the board-side connector 2 cannot be further docked.

Referring to fig. 15 to 17, in the case of misplugging, the PCB 12 is aligned with the mating slot 211, and the stopper 212 of the mating slot 211 abuts against the PCB 12, so that the connector 1 and the board-side connector 2 cannot be mated further.

Referring to fig. 18, a schematic diagram of the board-end connector 2 with the convex hull 233 for preventing backward insertion is shown, in which the convex hull 233 is pressed against the abutting portion 111, and the connector 1 and the board-end connector 2 cannot be further abutted.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A cable connector, comprising:

the PCB comprises an insulating body and a PCB board;

one end of the PCB is fixedly arranged on the insulating body and is connected with a cable extending out of the insulating body, and the other end of the PCB freely extends outwards to form an inserting part;

the insulation body extends outwards to form a butt joint part which is arranged at a distance from the PCB, and a first limit gap is formed between the butt joint part and the PCB;

in the first limiting gap, a guide groove is formed in the wall surface where the butt joint part is located, and at least one guide groove penetrates through the extending end of the butt joint part.

2. A cable connector according to claim 1, wherein:

one guide groove is arranged in the middle of the first limiting gap.

3. A cable connector according to claim 1, wherein:

the guide grooves are two and symmetrically arranged on two sides of the first limiting gap.

4. A cable connector according to claim 1, wherein:

the groove wall of the guide groove perpendicular to the outward extending direction of the PCB is arranged between the groove bottom of the first limiting gap and the end part, close to the insulating body, of the metal contact on the PCB.

5. A cable connector according to claim 1, wherein:

the end face of the extending end of the butting part is flush with or exceeds the end face of the inserting part of the PCB.

6. A cable connector according to claim 1, wherein:

the side baffle is arranged on the side parts of the butt joint part and the PCB and is arranged at intervals with the side end faces of the butt joint part and the PCB, and the side baffle and the side end faces of the butt joint part and the PCB form a second limit gap.

7. A cable connector according to claim 6, wherein:

the side baffle is provided with a piece and is arranged on one side of the insulating body; or the side baffle has two pieces, and two sides of the side baffle are arranged on the insulating body.

8. A cable connector according to claim 6, wherein:

the end part of the side baffle plate extending outwards is flush with or exceeds the end surface of the insertion part of the PCB.

9. A cable connector according to claim 6, wherein:

the end surface of the side baffle, which is far away from the butt joint part, is provided with a lower baffle facing the second limiting gap; or one end of the insulating body, which is far away from the butting part, is provided with a lower baffle consistent with the extending direction of the PCB, and the distance from the lower baffle to the side baffle is smaller than the width of the second limiting gap; when the connector is inserted into the plate end connector, the inner wall surfaces of the side baffle and the lower baffle face the outer wall surface of the shell of the plate end connector.

10. A cable connector according to claim 9, wherein:

the two sides of the insulating body are both provided with side baffles, the side baffles on the two sides are both provided with lower baffles, and the two opposite ends of the lower baffles are connected to form an integral lower baffle.

11. A cable connector according to claim 1, wherein:

the insulating body further comprises an elastic sheet, a mounting groove is formed in the top of the butt joint portion, and the elastic sheet is mounted in the mounting groove.

12. A cable connector according to claim 11, wherein:

the shortest distance from the guide groove to the side part of the butt joint part is more than 0.5mm, and the shortest distance from the guide groove to the elastic piece is more than 0.5 mm.

13. A cable connector according to claim 1, wherein:

the width of the guide groove is 0.5-2 mm.

14. A cable connector according to claim 1, wherein:

the thickness of the guide groove is 0.3-1.5 mm.

15. A connector assembly, including the cable connector and the board end connector of mutual grafting cooperation, its characterized in that: the cable connector according to any one of claims 1 to 14.

16. A connector assembly according to claim 15, wherein:

the plate end connector comprises a butt joint main body, an upper row of conductive terminals and a lower row of conductive terminals which are inserted into the butt joint main body, and a butt joint shell which is coated outside the butt joint main body, wherein the butt joint shell comprises a top wall and a side wall; a butt joint slot for the butt joint part to insert is arranged between the top wall and the butt joint main body; in the butt joint slot, a stop block corresponding to the guide groove is arranged on the butt joint main body.

17. A connector assembly according to claim 16, wherein:

one end of the stop block facing the connector is flush with the notch of the butt joint slot.

18. A connector assembly according to claim 16, wherein:

the butt joint shell comprises a bottom wall, and a convex hull is arranged on the outer side face, close to the end, of the bottom wall.

19. A connector assembly according to claim 18, wherein:

at least one of the convex hulls.

20. A connector assembly according to claim 16, wherein:

the top wall and a part of the side wall connected with the top wall extend forwards to form a lug for guiding the butting part of the connector to be butted.

21. A connector assembly according to claim 16, wherein:

when there are two guide grooves, there are two corresponding stoppers.

22. A connector assembly according to claim 16, wherein:

the width of the stop block is 0.4-1.8 mm.

23. A connector assembly according to claim 16, wherein:

the height of the stop block is 0.2-1.3 mm.