CN214505784U - Puncture type electric connector and jig for jointing electric connector and cable - Google Patents

Abstract

A puncture type electric connector and a jig for jointing the electric connector and a cable comprise an insulation base and a terminal component. The insulating base includes first holding portion and second holding portion, and the one end of cable sets up in the second holding portion, and the cable includes electrically conductive heart yearn and the insulating layer of cladding heart yearn. The terminal assembly comprises a butt terminal arranged in the first accommodating part and a puncture terminal arranged in the second accommodating part and electrically connected with the butt terminal, the puncture terminal is electrically connected with the cable, and the butt terminal is electrically connected with a terminal of the opponent electric connector. The puncture terminal comprises a blade part which punctures the insulating layer and is electrically connected with the core wire, and a first angle which is larger than 90 degrees and smaller than 180 degrees is formed between the blade part and the bearing surface of the second accommodating part for bearing the cable. The electric connector and the cable jointing fixture make the puncture type electric connector electrically connected with the cable, and make the knife edge part of the puncture terminal bent with the first angle puncture the insulating layer of the cable and electrically connected with the core wire.

Description

Puncture type electric connector and jig for jointing electric connector and cable

Technical Field

The present invention relates to the field of electrical connector piercing terminal assembly technology, and more particularly to a piercing connector and a fixture for electrical connector and cable assembly, wherein the piercing connector has an inclination angle and can bear vertical and horizontal force application when the piercing connector is engaged with a cable.

Background

The conventional piercing terminal of the piercing connector directly pierces the insulation coating layer of the core wire of the cable to contact with the conducting wire in the core wire to form electrical connection. The assembling mode is quite quick, the procedure of stripping the insulating coating of the core wire can be omitted, the welding of the cable and the terminal is not required, the working hour can be saved, and the manufacturing cost of the product is reduced. However, since the cable is hard and not easy to bend and the blade of the piercing terminal is vertical, when the cable is pressed against the blade of the piercing terminal, the blade cannot bear the force in the vertical and horizontal directions, and therefore the cable may be separated from the piercing terminal under the action of external force, thereby interrupting the signal transmission.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a puncture type electric connector, an inclination angle is formed between a puncture terminal and a bearing surface, so that the puncture terminal can bear force application in vertical and horizontal directions, even if a cable is under the action of external force, the puncture terminal can still keep electric connection with a core wire of the cable, and the problem of signal interruption caused by separation of the core wire of the cable and the puncture terminal due to the fact that the puncture terminal of the existing electric connector cannot bear the force application in the horizontal and vertical directions is solved.

In order to solve the technical problem, the present application is implemented as follows:

the electrical connector includes an insulative housing and a terminal assembly. The insulating base includes first holding portion and second holding portion, and the one end of cable sets up in the second holding portion, and the cable includes electrically conductive heart yearn and the insulating layer of cladding heart yearn. The terminal assembly comprises a butt terminal arranged in the first accommodating part and a puncture terminal arranged in the second accommodating part and electrically connected with the butt terminal, the puncture terminal is electrically connected with the cable, and the butt terminal is electrically connected with a terminal of the opponent electric connector. The puncture terminal comprises a blade part which punctures the insulating layer and is electrically connected with the core wire, and a first angle which is larger than 90 degrees and smaller than 180 degrees is formed between the blade part and the bearing surface of the second accommodating part for bearing the cable.

In one embodiment, the cable connector further comprises a combination component for combining the cable with the insulating base, the combination component comprises a crimping piece intersecting with the extending direction of the cable, the crimping piece comprises a base part, a bending part connected with the base part and a crimping part connected with the bending part, the crimping part is crimped on the insulating layer of the cable, a second angle smaller than 180 degrees is formed between the bending part and the base part, and a third angle smaller than 180 degrees is formed between the crimping part and the bending part.

In one embodiment, the coupling assembly further includes a carrier for carrying a surface of the insulating base away from the second accommodating portion, and the pressing member is connected to the carrier and extends toward the second accommodating portion.

In one embodiment, the terminal assembly further includes a connector connecting the butt terminal and the piercing terminal, the connector extends along the bearing surface of the second accommodating portion, and a fourth angle greater than 90 degrees is formed between the blade portion and the connector.

In one embodiment, the fourth angle is equal to the first angle.

In one embodiment, the piercing terminal includes a pair of blade portions, the cable is a coaxial cable, and a core wire of the cable is disposed between and electrically connected to the pair of blade portions.

The application also provides a jig for jointing the electric connector and the cable, which enables the puncture type electric connector to be electrically connected with the cable.

In one embodiment, the cable connection structure further includes a positioning edge connected to the pressing edge and disposed on opposite sides of the pressing edge, the cable connection structure is a recess formed by connecting the pressing edge and the positioning edge, the electrical connector and the cable are accommodated in the recess, the positioning edges respectively abut against opposite sides of the electrical connector, and the over-pressure protrusion over-presses the insulation layer of the cable, so that the blade portion and the carrying surface form a first angle.

In one embodiment, the cable engagement structure further includes a pair of flared edges connected to the pair of retention lips, the distance between the pair of flared edges increasing from their connection to the retention lips.

In one embodiment, the over-embossing is in the center of the press-against edge.

This application is the puncture terminal that is the slope form through the setting, makes puncture terminal can have elasticity and can bear the application of force in level and vertical direction, even under the cable receives the condition of external force, punctures the terminal and can slightly do the removal and can not separate with the heart yearn along with the heart yearn to avoid the situation of signal interruption, solve prior art heart yearn and puncture terminal separation and lead to the problem of signal interruption easily under external force.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of a piercing connector and a jig for connecting the electrical connector to a cable according to a first embodiment of the present application;

FIG. 2 is a top view of the electrical pierce connector of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is an exploded perspective view of the electrical pierce connector of FIG. 1;

FIG. 5 is a side view of FIG. 4;

fig. 6 is a perspective view of the jig for connecting the electrical connector and the cable of fig. 1;

fig. 7 is a front view of the electrical connector and cable engagement jig of fig. 6;

FIG. 8 is a top view of the electrical connector of FIG. 1 with a cable engagement fixture for crimping a cable to the electrical connector;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;

FIG. 10 is a perspective view of a poke-in electrical connector of a second embodiment of the present application;

FIG. 11 is a top view of the electrical pierce connector of FIG. 10;

FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;

FIG. 13 is a cross-sectional view taken along line E-E of FIG. 11;

FIG. 14 is a perspective view of a poke-in electrical connector of a third embodiment of the present application;

FIG. 15 is a top view of the electrical pierce connector of FIG. 14;

fig. 16 is a cross-sectional view taken along line F-F of fig. 15.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, wherein fig. 1 is a perspective view of a electrical puncture connector and a jig for connecting the electrical puncture connector with a cable according to a first embodiment of the present disclosure, fig. 2 is a top view of the electrical puncture connector of fig. 1, fig. 3 is a cross-sectional view of fig. 2 along line B-B, fig. 4 is an exploded perspective view of the electrical puncture connector of fig. 1, and fig. 5 is a side view of fig. 4. As shown, the electrical piercing connector of the present embodiment includes an insulating base 10 and a terminal assembly 20. The insulation base 10 includes a first accommodating portion 11 and a second accommodating portion 12, and a partition wall 13 is disposed between the first accommodating portion 11 and the second accommodating portion 12. The terminal assembly 20 includes a mating terminal 21 provided in the first accommodating portion 11 and a pierce terminal 22 provided in the second accommodating portion 12 and electrically connected to the mating terminal 21. The terminal assembly 20 and the insulation base 10 are formed by injection molding so that the terminal assembly 20 is fixedly held to the partition walls 13 of the insulation base 10 while the mating terminal 21 is positioned in the first accommodating portion 11 and the piercing terminal 22 is positioned in the second accommodating portion 12.

One end of the cable C is disposed in the second accommodating portion 12, and the cable C includes a conductive core wire C1 and an insulating layer C2 covering the core wire C1. As shown in fig. 3, 4 and 5, the piercing terminal 22 pierces the insulating layer C2 and enters the insulating layer C2 to contact the conductive core wire C1, thereby serving as an electrical connection. The counterpart terminal 21 is electrically connected to a terminal of a counterpart electrical connector. The piercing terminal 22 includes a blade 221 piercing the insulating layer C2 and electrically connected to the core wire C1, and a first angle θ 1 between the blade 221 and the bearing surface 121 of the second accommodating portion 12 for bearing the cable C is greater than 90 degrees and less than 180 degrees, so that the blade 221 is inclined with respect to the bearing surface 121. In the present embodiment, the first angle θ 1 is 115 degrees, but the present invention is not limited to this embodiment.

The terminal assembly 20 further includes a connector 23 connecting the butt terminal 21 and the piercing terminal 22, wherein the connector 23 extends along the bearing surface 121 of the second accommodating portion 12, and a fourth angle θ 4 greater than 90 degrees is formed between the blade portion 221 and the connector 23. Since the connector 23 is disposed in parallel and in contact with the receiving surface 121, the fourth angle θ 4 between the blade portion 221 and the connector 23 is the same as the first angle θ 1 between the blade portion 221 and the receiving surface 121.

As shown in fig. 1 and 5, the electrical puncture connector of the present embodiment further includes a coupling assembly 30 for coupling the cable C to the insulating base 10, and the coupling assembly 30 includes a crimping member 31 intersecting with the extending direction of the cable C. The coupling assembly 30 further includes a carrier 32 for carrying the surface 14 of the insulation base 10 away from the second accommodating portion 12, and the pressing member 31 is connected to the carrier 32 and extends toward the second accommodating portion 12. The surface 14 of the bottom of the insulation base 10 is provided on the carrier 32, the crimping pieces 31 extend upward from the opposite side edges of the carrier 32, so that the insulation base 10 is sandwiched between the crimping pieces 31 on both sides of the carrier 32, so that the crimping pieces 31 cannot move while restricting the insulation base 10, the crimping pieces 31 are bent to abut horizontally on the side walls of the insulation base 10 constituting the second accommodating portion 12, and are crimped to the insulation layer C2 of the cable C located in the second accommodating portion 12, so that the insulation base 10 is restricted from moving in the vertical direction while the cable C is positioned in the second accommodating portion 12.

Referring to fig. 6 and 7, fig. 6 is a perspective view of the jig for connecting an electrical connector and a cable of fig. 1, and fig. 7 is a front view of the jig for connecting an electrical connector and a cable of fig. 6. The jig 40 includes a jig body 41 and a cable engagement structure 42 disposed on the jig body 41. The jig body 41 of the present embodiment has a rectangular plate shape, and the cable connecting structure 42 is disposed on an edge of one side of the jig body 41.

The cable engagement structure 42 includes a pressing edge 421 and an over-pressure protrusion 422 disposed on the pressing edge 421, the over-pressure protrusion 422 protrudes from the pressing edge 421, and the over-pressure protrusion 422 corresponds to the blade portion 221 of the piercing terminal 22 of the piercing electrical connector. The cable engagement structure 42 further includes positioning edges 423 connected to the abutting edges 421 and disposed on opposite sides of the abutting edges 421. The cable connecting structure 42 is connected by the pressing edge 421 and the positioning edge 423 to form a notch 424 on one side edge of the fixture body 41. The cable engagement structure 42 further includes a pair of flared edges 425 connected to the pair of retention lips 423, the distance between the pair of flared edges 425 increasing from their connection to the retention lips 423. That is, the flared edges 425 are provided at the opening of the jig body 41 in the notch 424, the pair of inclined flared edges 425 are respectively connected to one ends of the pair of parallel positioning end edges 423, and the other ends of the pair of parallel positioning end edges 423 are respectively connected to the pair of abutting end edges 421 in an orthogonal manner. The overpressure protrusion 422 is located at the center of the pressing edge 421.

Referring to fig. 8 and 9, fig. 8 is a top view of the electrical connector and the cable bonding jig of fig. 1 for crimping a cable to the electrical connector, and fig. 9 is a cross-sectional view of fig. 8 along the line C-C. As shown, electrical stab connector and cable C are guided into recess 424 by flared edge 425 and are received in recess 424. The positioning edges 423 are respectively abutted against two opposite sides of the electrical puncture connector, and in detail, the positioning edges 423 are abutted against the side surfaces of the pair of pressing members 31 of the coupling assembly 30, so that the electrical puncture connector and the cable C disposed in the second accommodating portion 12 thereof are clamped and positioned between the pair of positioning edges 423, and the abutting edge 421 is abutted against the pair of bent pressing members 31, at this time, the overpressure convex portion 422 at the center of the abutting edge 421 is in overpressure abutment against the cable C, so that the blade portion 221 having the first angle θ 1 with the bearing surface 121 pierces through the insulating layer C2 of the cable C and is electrically connected with the core wire C1.

The blade part 221 of the pierce terminal 22 of the pierce type electrical connector of the present embodiment has the first angle θ 1 inclined so that the blade part 221 of the pierce terminal 22 can receive a biasing force in the horizontal and vertical directions, when an external force acts on the cable C, the blade part 221 of the pierce terminal 22 can keep electrical connection with the core wire C1 of the cable C as the core wire C1 moves, the core wire C1 of the cable C does not separate from the blade part 221 of the pierce terminal 22, and thus there is no signal interruption problem. The piercing terminal 22 of the present embodiment has a pair of blade portions 221, the piercing electrical connector of the present embodiment may be, but is not limited to, a connector of a coaxial cable, the cable C may also be, but is not limited to, a coaxial cable, and the core wire C1 of the cable C is disposed between the pair of blade portions 221 and abuts against the pair of blade portions 221 to form an electrical connection, specifically, by the structural arrangement of the pair of blade portions 221, when an external force acts on the cable C, the core wire C1 may be stably limited between the two blade portions 221, as shown in fig. 12, and therefore, the present embodiment mode may effectively prevent the problem of signal transmission interruption between the core wire C1 and the pair of blade portions 221.

Referring to fig. 10, 11, 12 and 13, fig. 10 is a perspective view of a electrical puncture connector according to a second embodiment of the present application, fig. 11 is a top view of the electrical puncture connector of fig. 10, fig. 12 is a cross-sectional view of fig. 14 taken along line D-D, and fig. 13 is a cross-sectional view of fig. 14 taken along line E-E. As shown in the drawings, the piercing electrical connector of the present embodiment is configured such that the bent crimping piece 31 is pressed against the insulating layer C2 of the cable C, so that the blade portion 221 having the first angle θ 1 with the bearing surface 121 pierces through the insulating layer C2 of the cable C and is electrically connected to the core wire C1. The same components as those in the first embodiment are denoted by the same symbols, and the structure and the function thereof will not be described repeatedly. The difference between the present embodiment and the first embodiment is that the portion of the crimping piece 31 of the present embodiment, which is bent and extended upward from the edge of the bearing piece 32, includes a base portion 311, a bent portion 312 connected to the base portion 311, and a crimping portion 313 connected to the bent portion 312, the base portion 311 extends horizontally, the bent portion 312 and the base portion 311 have a second angle θ 2 smaller than 180 degrees, and the crimping portion 313 and the bent portion 312 have a third angle θ 3 smaller than 180 degrees. The pressure-bonding part 313 is pressed against the insulating layer C2 of the cable C so that the blade 221 and the receiving surface 121 have the first angle θ 1 therebetween. In the present embodiment, the third angle θ 3 is larger than the second angle θ 2. And both the second angle theta 2 and the third angle theta 3 are greater than 90 degrees.

The electrical pierce connector of the present embodiment forms the bent portion 312 and the crimp portion 313 by bending the crimp 31, and by providing the blade portion 221 with the first angle θ 1, the blade portion 221 of the pierce terminal 22 can bear the force in the horizontal and vertical directions, when the external force is applied to the cable C, the blade portion 221 of the pierce terminal 22 can keep the electrical connection with the core wire C1 of the cable C as the core wire C1 moves, the core wire C1 of the cable C does not separate from the blade portion 221 of the pierce terminal 22, and thus there is no problem of signal interruption.

Referring to fig. 14, 15 and 16, fig. 14 is a perspective view of a electrical puncture connector according to a third embodiment of the present application, fig. 15 is a top view of the electrical puncture connector of fig. 14, and fig. 16 is a cross-sectional view of fig. 15 along the line F-F. In the present embodiment, the jig 30 of the first embodiment and the crimping piece 31 of the second embodiment having the base 311, the bending part 312 and the crimping part 313 are pressed against the insulating layer C2 of the cable C doubly, so that the blade part 221 having the first angle θ 1 with the bearing surface 121 pierces through the insulating layer C2 of the cable C and is electrically connected to the core wire C1.

The utility model provides a puncture terminal that is the slope form is set up, utilizes the tool or combines the crimping spare of subassembly to make puncture terminal puncture the insulating layer of cable and be connected with the heart yearn electricity moreover. The piercing terminal for piercing the insulating layer and the bearing surface are provided with a first inclined angle, so that the piercing terminal can have elasticity in the horizontal and vertical directions and can bear the force application, and even under the condition that the cable is subjected to external force, the piercing terminal can slightly move along with the core wire and cannot be separated from the core wire, thereby avoiding the signal interruption condition and solving the problem that the core wire is easily separated from the piercing terminal under the external force to cause signal interruption in the prior art.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A electrical pierce connector comprising:

an insulating base (10) including a first accommodating part (11) and a second accommodating part (12), one end of a cable (C) being disposed at the second accommodating part (12), the cable (C) including a conductive core wire (C1) and an insulating layer (C2) covering the core wire (C1);

a terminal assembly (20) including a mating terminal (21) provided in the first accommodating portion (11) and a piercing terminal (22) provided in the second accommodating portion (12) and electrically connected to the mating terminal (21), the piercing terminal (22) being electrically connected to the cable (C);

the puncture terminal (22) comprises a blade part (221) which punctures the insulating layer (C2) and is electrically connected with the core wire (C1), a first angle (theta 1) which is larger than 90 degrees and smaller than 180 degrees is formed between the blade part (221) and a bearing surface (121) of the second accommodating part (12) for bearing the cable (C), and the blade part (221) is arranged in an inclined plane.

2. A puncture-type electrical connector according to claim 1, further comprising a bonding assembly (30) for bonding the cable (C) to the insulating base (10), wherein the bonding assembly (30) comprises a crimping part (31) intersecting with the extending direction of the cable (C), the crimping part (31) comprises a base part (311), a bending part (312) connected to the base part (311), and a crimping part (313) connected to the bending part (312), the crimping part (313) is crimped to the insulating layer (C2) of the cable (C), the bending part (312) and the base part (311) have a second angle (θ 2) smaller than 180 degrees, and the crimping part (313) and the bending part (312) have a third angle (θ 3) smaller than 180 degrees.

3. Electrical puncture connector according to claim 2, wherein the coupling assembly (30) further comprises a carrier (32) carrying the surface (14) of the insulating base (10) remote from the second receptacle (12), the crimp (31) being connected to the carrier (32) and extending towards the second receptacle (12).

4. The electrical pierce connector according to claim 1, wherein the terminal assembly (20) further comprises a connector (23) connecting the mating terminal (21) and the piercing terminal (22), the connector (23) extending along the bearing surface (121) of the second receptacle (12), and the blade portion (221) and the connector (23) have a fourth angle (θ 4) therebetween greater than 90 degrees.

5. The electrical pierce connector according to claim 4, wherein the fourth angle (θ 4) is equal to the first angle (θ 1).

6. The electrical pierce connector according to claim 1, wherein the pierce terminal (22) includes a pair of the blade portions (221), the cable (C) is a coaxial cable, and the core wire (C1) of the cable (C) is disposed between the pair of blade portions (221) and electrically connected to the pair of blade portions (221).

7. An electrical connector and cable joint jig (40) for electrically connecting the puncture type electrical connector according to any one of claims 1 to 6 with a cable (C), comprising a jig body (41) and a cable joint structure (42) disposed on the jig body (41), wherein the cable joint structure (42) comprises a pressing end edge (421) and an overpressure convex part (422) disposed on the pressing end edge (421), the overpressure convex part (422) protrudes from the pressing end edge (421), and the overpressure convex part (422) corresponds to the blade part (221) of the puncture terminal (22) of the puncture type electrical connector.

8. The tool (40) for connecting an electrical connector and a cable according to claim 7, wherein the cable connecting structure (42) further includes a positioning end edge (423) connected to the abutting end edge (421) and disposed at two opposite sides of the abutting end edge (421), the cable connecting structure (42) is a notch (424) formed by connecting the abutting end edge (421) and the positioning end edge (423), the electrical connector and the cable (C) are accommodated in the notch (424), the positioning end edges (423) respectively abut against two opposite sides of the electrical connector, and the overpressure protrusion (422) is pressed against the insulation layer (C2) of the cable (C) to form the first angle (θ 1) between the blade portion (221) and the carrying surface (121).

9. The jig (40) for joining an electrical connector and a cable according to claim 8, wherein the cable joining structure (42) further comprises a pair of flared edges (425) connected to the pair of positioning end edges (423), and a distance between the pair of flared edges (425) is gradually increased from a connection point thereof with the positioning end edges (423).

10. The jig (40) for connecting an electrical connector and a cable according to claim 7, wherein the over-voltage protrusion (422) is located at the center of the abutting end edge (421).

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