CN218123811U - Electrical connector - Google Patents

Abstract

An electric connector is used for assembling a cable and comprises a shell, a wire harness cover body, a circuit board, a plurality of piercing terminals and a fixing ring. The housing includes a main body portion, an insertion portion connected to the main body portion, and a screwing portion integrally connected to a side of the main body portion opposite to the insertion portion. The cable harness cover comprises a shielding part and a flexible screwing part, the shielding part is pivoted on the main body part, the inserting part and the shielding part form an accommodating space together, the screwing part and the flexible screwing part form a cable harness hole communicated with the accommodating space together, and the cable harness hole is used for cable assembly. The circuit board is arranged in the accommodating space. The puncture terminals are arranged on the circuit board and used for assembling a plurality of core wires of the cable. The fixing ring is screwed on the screwing part and the flexible screwing part, so that the screwing part and the flexible screwing part jointly press the cable.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector.

Background

With the popularity of the internet, electrical connectors for transmitting network signals have become important accessories of electronic devices. Generally, an electrical connector includes a housing, two wire harness covers and a harness ring. The two bunch covers are arranged on the shell, the bunch ring is arranged on the two bunch covers, and the bunch ring is used for forcing the two bunch covers to tightly press the cable so as to fix the cable.

However, since the number of components of the electrical connector is excessive, the assembly is relatively time-consuming and labor-consuming, and the cost is increased, the research and development personnel in the field are trying to find a solution to the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The present invention provides an electrical connector, which is easy and convenient to assemble and has low manufacturing cost.

An embodiment of the present invention discloses an electrical connector for cable assembly, which includes a housing, a wire harness cover, a circuit board, a plurality of piercing terminals, and a fixing ring. The housing includes a main body portion, an insertion portion connected to the main body portion, and a screw portion integrally connected to a side of the main body portion opposite to the insertion portion. The cable harness cover comprises a shielding part and a flexible screwing part, the shielding part is pivoted on the main body part, the inserting part and the shielding part form an accommodating space together, the screwing part and the flexible screwing part form a cable harness hole communicated with the accommodating space together, and the cable harness hole is used for cable assembly. The circuit board is arranged in the accommodating space. The puncture terminals are arranged on the circuit board and used for assembling a plurality of core wires of the cable. The fixing ring is screwed on the screwing part and the flexible screwing part, so that the screwing part and the flexible screwing part jointly press the cable.

According to the electrical connector disclosed in the above embodiment, the number of the wire harness cover bodies can be reduced by arranging the housing to include the screw portions integrally connected to the main body portion, and only one wire harness cover body including the flexible screw portions is required, so that the fixing ring can force the screw portions of the housing and the flexible screw portions of the wire harness cover bodies to tighten the cable after the screw portions of the housing and the flexible screw portions of the wire harness cover bodies are mounted to the screw portions of the housing and the flexible screw portions of the wire harness cover bodies. Therefore, compared to the conventional electrical connector including two harness covers, the electrical connector of the above embodiment not only has a reduced number of components, but also is relatively easy to assemble, and the cost of the electrical connector is relatively reduced.

In addition, the arrangement that the housing includes the screwing part connected with the main body part in an integrated manner and the bunch cover body includes the flexible screwing part can force the center of the cable to move towards the center of the fixing ring after the fixing ring is arranged on the screwing part of the housing and the flexible screwing part of the bunch cover body, so that the center of the cable can be aligned with the center of the fixing ring, the core wires of the cable can be smoothly combined with the puncture terminals, and the quality of signal transmission is ensured.

The above description of the present invention and the following description of the embodiments are provided to illustrate and explain the principles of the present invention and to provide further explanation of the scope of the present invention.

Drawings

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

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a side view of the harness cover of fig. 2.

Fig. 4 is a schematic cross-sectional view of fig. 1.

Fig. 5 is a rear view schematic of the cable of fig. 1 with the cable removed.

Fig. 6 is a rear view of fig. 1.

[ description of reference ]

10: electrical connector

20: cable with a protective layer

21: insulating outer layer

22: shielding layer

23: core wire

100: shell body

110: main body part

111: bottom part

112: top part

113: side part

113a: buckle slot

114: front part

120: plug-in part

130: screw-on part

200: wire harness cover body

210: shielding part

211: buckle lug

220: flexible screw part

221: base seat

222: a first flexible arm

222a: first end

222b: second end

223: a second flexible arm

223a: first end

223b: second end

300: circuit board

400: piercing terminal

500: fixing ring

510: perforation

511: wide section

512: tapered section

513: inner wall surface

520: internal thread structure

600: fastener

610: assembly part

620: fastening part

621: anti-slip structure

700: circuit board seat

800: piercing terminal seat

900: wire arranging piece

910: core wire assembling groove

1000: grounding elastic sheet

1010: fixing part

1020: abutting part

S: containing space

C: round wire

θ: angle of rotation

H: wire harness hole

E: extension surface

Detailed Description

Please refer to fig. 1 and fig. 2. Fig. 1 is a perspective view of an electrical connector and a cable according to an embodiment of the present invention. Fig. 2 is an exploded view of fig. 1.

In the present embodiment, the electrical connector 10 is used for assembling a cable 20, wherein the cable 20 includes an insulating outer layer 21, a shielding layer 22 and a plurality of core wires 23 from outside to inside, and at an end of the cable 20 for assembling the electrical connector 10, the shielding layer 22 and the core wires 23 are exposed from the insulating outer layer 21.

The electrical connector 10 includes a housing 100, a wire harness cover 200, a circuit board 300, a plurality of piercing terminals 400, and a fixing ring 500. In addition, in the present embodiment, the electrical connector 10 may further include a locking element 600, a circuit board base 700, a piercing terminal base 800, a wire arranging element 900 and a grounding elastic sheet 1000.

Next, referring to fig. 2 to 6, fig. 3 is a side view of the wire harness cover body of fig. 2. Fig. 4 is a schematic cross-sectional view of fig. 1. Fig. 5 is a rear view of the cable of fig. 1 with the cable removed. Fig. 6 is a rear view of fig. 1.

The housing 100 includes a main body 110, an inserting portion 120 and a screwing portion 130. The main body 110 includes a bottom 111, a top 112, two sides 113 and a front 114. The bottom 111 and the top 112 are connected through two sides 113 and a front 114, the two sides 113 are opposite to each other, and the plug 120 is connected to the front 114 and is closer to the bottom 111 than the top 112. The threaded portion 130 is integrally connected to a side of the top portion 112 opposite the front portion 114.

In the present embodiment, the main body 110, the plug 120 and the screw 130 of the housing 100 are, for example, integrally formed shells made of metal such as zinc alloy, but the invention is not limited thereto. In other embodiments, only the main body portion and the screwing portion of the housing may be a metal integrally formed housing.

The latch 600 is made of plastic, for example. The locking member 600 includes an assembling portion 610 and a locking portion 620 connected to each other. The assembling portion 610 is mounted on the inserting portion 120 of the casing 100, and the locking portion 620 is used for being clamped to a socket (not shown) when the inserting portion 120 of the casing 100 is inserted into the socket. The buckling part 620 of the buckling piece 600 is pressed by fingers to fix the buckling piece 600 to the socket, so that the plug-in part 120 can be pulled out of the socket. In the embodiment, the fastening portion 620 of the fastening element 600 may have an anti-slip structure 621, and the anti-slip structure 621 is, for example, a groove and can increase the friction between the finger and the fastening element 600. It should be noted that the latch 600 is an optional element and may be omitted in other embodiments.

The harness cover 200 is made of a composite material including nylon and glass fibers, for example. The harness cover 200 includes a shielding portion 210 and a flexible screw portion 220. The shielding part 210 is pivoted to the bottom 111 of the main body 110. The shielding portion 210 has two opposite latching protrusions 211, and two side portions 113 of the main body portion 110 of the housing 100 each have a latching groove 113a. The two latching protrusions 211 of the shielding portion 210 are respectively latched to the two latching grooves 113a of the two sides 113 of the main body portion 110. The main body 110, the inserting part 120 and the shielding part 210 together form an accommodating space S. The flexible screwing portion 220 includes a base 221, a first flexible arm 222 and two second flexible arms 223. One side of the base 221 is connected to the shielding part 210. The first flexible arm 222 has a first end 222a and a second end 222b opposite to each other, and the second flexible arm 223 also has a first end 223a and a second end 223b opposite to each other. The first end 222a of the first flexible arm 222 and the first end 223a of the second flexible arm 223 are connected to a side of the base 221 opposite to the shielding portion 210, and the first flexible arm 222 and the second flexible arm 223 are spaced apart from each other. The first flexible arm 222 is opposite to the screwing portion 130 of the housing 100, and the second flexible arm 223 is closer to the screwing portion 130 of the housing 100 than the first flexible arm 222. The second end 223b of each second flexible arm 223 is further from the first flexible arm 222 than the first end 223 a. That is, the second flexible arm 223 extends from the base 221, and the farther the second flexible arm 223 is away from the base 221, the greater the distance between the second flexible arm 223 and the first flexible arm 222. The second end 222b of the first flexible arm 222 and the second ends 223b of the second flexible arms 223 are located on a circular line C, and an angle θ between the second end 222b of the first flexible arm 222 and the second ends 223b of the second flexible arms 223 is about 120 degrees.

In the present embodiment, the base 221, the first flexible arm 222 and the second flexible arm 223 of the flexible screwing portion 220 and the screwing portion 130 of the housing 100 together form a beam hole H communicating with the accommodating space S. The bundle holes H are used for assembling the cable 20. The rigidity of the screwing portion 130 of the housing 100 is greater than the rigidity of the flexible screwing portion 220 of the harness cover 200. That is, the flexible screwing portion 220 of the harness cover body 200 is more easily elastically deformed than the screwing portion 130 of the case 100.

The circuit board base 700 is located in the accommodating space S of the housing 100 and fixed to the bottom 111 of the main body 110. The circuit board 300 is carried on the circuit board base 700. The puncture terminal block 800 is disposed on the circuit board 300. The piercing terminals 400 are disposed on the circuit board 300 and pass through the piercing terminal block 800. The wire arranging member 900 has a plurality of core wire assembling grooves 910, and the core wire assembling grooves 910 are respectively used for assembling a plurality of core wires 23 of the cable 20. The wire management member 900 is installed on the puncture terminal base 800, and the puncture terminals 400 are respectively inserted into the core wire assembling grooves 910 of the wire management member 900 to be combined with the core wires 23 of the cable 20. The grounding spring 1000 includes a fixing portion 1010 and an abutting portion 1020 connected to each other. The fixing portion 1010 is disposed in the accommodating space S and fixed to the circuit board base 700, and the fixing portion 1010 is electrically contacted to the bottom 111 of the main body 110. The abutting portion 1020 is located in the wire harness hole H and is configured to electrically contact the shielding layer 22 of the cable 20 to eliminate noise in the electrical connector 10. The width of the abutting portion 1020 of the grounding spring 1000 is gradually decreased toward the direction away from the fixing portion 1010.

The retaining ring 500 is similar to a screw cap. The fixing ring 500 has a through hole 510 and an internal thread structure 520 located in the through hole 510. The internal thread structure 520 of the fixing ring 500 is screwed to the screw portion 130 of the housing 100 and the flexible screw portion 220 of the harness cover 200. The through hole 510 of the fixing ring 500 has a wide section 511 and a tapered section 512 connected. The wide section 511 is closer to the shielding portion 210 of the harness cover 200 than the tapered section 512, and the width of the tapered section 512 is gradually reduced in a direction away from the wide section 511. One end of the first flexible arm 222 and the second flexible arm 223 away from the base 221 is pressed by an inner wall surface 513 of the tapered section 512 formed by the fixing ring 500, so that the screwing portion 130 of the housing 100, the first flexible arm 222 and the second flexible arm 223 jointly press the cable 20, and the abutting portion 1020 of the grounding elastic sheet 1000 is pressed by the first flexible arm 222 to tightly press the shielding layer 22 of the cable 20. These core wire assembling grooves 910 of the wire management member 900 are surrounded by the extension plane E located at the inner wall surface 513 of the through hole 510. That is, when the electrical connector 10 is viewed from the perspective of fig. 5, all the core wire assembling grooves 910 of the wire management member 900 can be directly seen through the through holes 510 of the fixing ring 500.

The process of assembling the cable 20 to the electrical connector 10 will be described below. First, the circuit board holder 700, the circuit board 300, the piercing terminal holder 800 and the piercing terminals 400 are already assembled and are disposed outside the housing 100 and the wire harness cover 200. Next, the core wires 23 of the cable 20 are assembled in the core wire assembling grooves 910 of the wire arranging member 900, and then the wire arranging member 900 is pressed down on the puncture terminal base 800, so that the puncture terminals 400 puncture the core wires 23 of the cable 20, and the grounding elastic sheet 1000 contacts the shielding layer 22 of the cable 20. Next, in a state where the harness cover body 200 is opened with respect to the housing 100, the above-described assembled components are put into the housing 100, and then the harness cover body 200 is closed, so that the two latching projections 211 of the shielding portion 210 are respectively latched to the two latching grooves 113a of the two side portions 113 of the main body portion 110. Then, the fixing ring 500 is screwed to the screwing portion 130 of the housing 100 and the flexible screwing portion 220 of the harness cover body 200, thereby completing the assembly of the cable 20.

It should be noted that the two latching protrusions 211 of the shielding portion 210 and the two latching grooves 113a of the two sides 113 of the main body portion 110 are optional structures. In other embodiments, the shielding portion may have no locking protrusion, and the two side portions of the main portion may have no locking groove.

In the present embodiment, the arrangement in which the housing 100 includes the screwing portion 130 integrally connected to the main body portion 110 can reduce the number of the harness cover bodies 200, and only one harness cover body 200 including the flexible screwing portion 220 is required, so that the fixing ring 500 can force the screwing portion 130 of the housing 100 and the flexible screwing portion 220 of the harness cover body 200 to tighten the cable 20 after the screwing portion 130 of the housing 100 and the flexible screwing portion 220 of the harness cover body 200 are mounted. Therefore, compared to the conventional electrical connector including two wire harness covers, the electrical connector 10 of the present embodiment not only has a reduced number of components, but also is relatively easy to assemble the electrical connector 10, and the cost of the electrical connector 10 is relatively reduced.

In addition, the first flexible arm 222 and the second flexible arm 223 of the flexible screwing portion 220 of the harness cover body 200 can be deformed to press the cable 20 by the tapered inner wall surface 513 of the fixing ring 500, so that the cable 20 can be stably fixed to the electrical connector 10.

Furthermore, the second end 223b of each second flexible arm 223 is farther from the first flexible arm 222 than the first end 223a, and the adjacent second ends of the second end 222b of the first flexible arm 222 and the second end 223b of the second flexible arm 223 are spaced by about 120 degrees, so that the periphery of the cable 20 is uniformly pressed by the first flexible arm 222 and the second flexible arm 223, and the stability of the cable 20 fixed to the electrical connector 10 is further ensured.

It should be noted that the second end 223b of each second flexible arm 223 is not limited to being farther away from the first flexible arm 222 than the first end 223 a. In other embodiments, the first end and the second end of the second flexible arm may be at the same distance from the first flexible arm. In addition, the angle between the adjacent second ends of the second ends 222b and 223b of the first flexible arm 222 and the second flexible arm 223 is not limited to 120 degrees. In other embodiments, the angle between adjacent second ends may be other angles.

It should be noted that the number of flexible arms of the flexible screwing portion 220 of the harness cover 200 is not intended to limit the present invention, but can be adjusted as required. For example, the number of flexible arms may be only one, two, or more than three.

In the present embodiment, the abutting portion 1020 of the grounding elastic sheet 1000 is pressed by the first flexible arm 222, so that the abutting portion 1020 of the grounding elastic sheet 1000 is prevented from being separated from the shielding layer 22 of the cable 20 due to an unexpected external force. In addition, the width of the abutting portion 1020 of the ground elastic sheet 1000 is gradually reduced toward the direction away from the fixing portion 1010, so that the abutting portion 1020 of the ground elastic sheet 1000 can more easily contact the shielding layer 22 of the cable 20.

It should be noted that the width of the abutting portion 1020 of the grounding elastic sheet 1000 is not limited to decrease toward the direction away from the fixing portion 1010, and the abutting portion of the grounding elastic sheet may have a uniform width if there is no problem in contact between the abutting portion of the grounding elastic sheet and the shielding layer of the cable. In addition, the grounding spring 1000 is an optional element, and can be omitted if there is no noise problem.

In the present embodiment, with the arrangement in which the rigidity of the screwing portion 130 of the housing 100 is greater than the rigidity of the flexible screwing portion 220 of the harness cover 200, the fixing ring 500 forces the first flexible arm 222 and the second flexible arm 223 of the flexible screwing portion 220 to move the center of the cable 20 toward the center of the fixing ring 500 so that the center of the cable 20 can be aligned with the center of the fixing ring 500 in the process in which the fixing ring 500 is screwed into the screwing portion 130 of the housing 100 and the flexible screwing portion 220 of the cover. Furthermore, the arrangement that the core wire assembling grooves 910 of the wire arranging member 900 are surrounded by the extending surface E of the inner wall surface 513 of the through hole 510 of the fixing ring 500 ensures that the core wires 23 of the cable 20 can be smoothly combined with the piercing terminals 400, thereby ensuring the quality of signal transmission.

It should be noted that the core wire assembling grooves 910 of the wire arranging member 900 are not limited to being surrounded by the extension plane E of the inner wall surface 513 of the through hole 510 of the fixing ring 500. If there is no problem of signal transmission quality, the core wire assembling grooves of the wire arranging member can not be surrounded by the extending surface of the inner wall surface of the through hole of the fixing ring.

The rigidity of the screw portion 130 of the case 100 is greater than the rigidity of the flexible screw portion 220 of the harness cover 200. In other embodiments, the rigidity of the threaded portion of the housing may be equal to or less than the rigidity of the flexible threaded portion of the harness cover.

It should be noted that the electrical connector 10 is not limited to the circuit board socket 700 containing the carrier circuit board 300. In other embodiments, the electrical connector may not have a circuit board holder, and the circuit board may be directly fixed to the bottom of the main body portion of the housing.

In the present embodiment, by matching the wire management member 900 and the piercing terminal block 800, the effect of guiding the wire management member 900 can be provided when the wire management member 900 is installed on the piercing terminal block 800, and the core wires 23 installed in the core wire assembling grooves 910 of the wire management member 900 can be combined with the piercing terminals 400 at one time. It should be noted that the wire management member 900 and the piercing terminal block 800 are optional elements and may be omitted.

According to the electrical connector disclosed in the above embodiment, the number of the wire harness cover bodies can be reduced by arranging the housing to include the screw portions integrally connected to the main body portion, and only one wire harness cover body including the flexible screw portions is required, so that the fixing ring can force the screw portions of the housing and the flexible screw portions of the wire harness cover bodies to tighten the cable after the screw portions of the housing and the flexible screw portions of the wire harness cover bodies are mounted to the screw portions of the housing and the flexible screw portions of the wire harness cover bodies. Therefore, compared to the conventional electrical connector including two wire harness covers, the electrical connector of the above embodiment not only has a reduced number of components, but also is relatively easy to assemble, and the cost of the electrical connector is relatively reduced.

In addition, by the arrangement that the housing includes the screwing portion integrally connected with the main body portion and the harness cover includes the flexible screwing portion, the center of the cable can be forced to move toward the center of the fixing ring after the fixing ring is mounted on the screwing portion of the housing and the flexible screwing portion of the harness cover, so that the center of the cable can be aligned with the center of the fixing ring, and the core wires of the cable can be smoothly bonded to the puncture terminals, thereby ensuring the quality of signal transmission.

Claims (10)

1. An electrical connector for a cable assembly, comprising:

a shell, which comprises a main body part, an inserting part and a screw part, wherein the inserting part is connected with the main body part, and the screw part is integrally connected with one side of the main body part opposite to the inserting part;

a bunch cover body, including a shielding part and a flexible screw part, the shielding part is pivoted to the main body part, the inserting part and the shielding part together form an accommodating space, the screw part and the flexible screw part together form a bunch hole communicated with the accommodating space, the bunch hole is used for assembling the cable;

a circuit board arranged in the accommodating space;

the puncture terminals are arranged on the circuit board and used for assembling a plurality of core wires of the cable; and

a fixing ring screwed on the screw portion and the flexible screw portion to make the screw portion and the flexible screw portion jointly urge the cable.

2. The electrical connector of claim 1, wherein a rigidity of the threaded portion of the housing is greater than a rigidity of the flexible threaded portion of the harness cover.

3. The electrical connector of claim 1, wherein said flexible screwing portion of said harness cover comprises a base and at least one flexible arm, said shielding portion and said at least one flexible arm are respectively connected to two opposite sides of said base, said fixing ring has a through hole, said through hole has a wide section and a tapered section connected, said wide section is closer to said shielding portion of said harness cover than said tapered section, the width of said tapered section is gradually reduced toward a direction away from said wide section, one end of said at least one flexible arm away from said base is pressed by an inner wall surface of said fixing ring forming said tapered section to tighten the cable.

4. The electrical connector of claim 3, wherein the at least one flexible arm includes a first flexible arm and a second flexible arm, the first flexible arm and the second flexible arm being spaced apart from each other, the first flexible arm being adapted to be screwed to the threaded portion of the housing, the second flexible arm being closer to the threaded portion of the housing than the first flexible arm.

5. The electrical connector of claim 4, wherein each of the second flexible arms has a first end and a second end opposite to each other, the first end of each of the second flexible arms is connected to the base, and the second end of each of the second flexible arms is farther from the first flexible arm than the first end.

6. The electrical connector of claim 4, wherein the first flexible arm has a first end and a second end opposite to each other, each of the second flexible arms has a first end and a second end opposite to each other, the first end of the first flexible arm and the first end of each of the second flexible arms are connected to the base, the second end of the first flexible arm and the second ends of the second flexible arms are located on a circular line, and adjacent second ends of the first flexible arm and the second flexible arm are spaced apart by 120 degrees.

7. The electrical connector of claim 1, further comprising a circuit board seat, a piercing terminal seat and a wire management member, wherein the circuit board seat is located in the accommodating space and fixed to the main body of the housing, the circuit board seat carries the circuit board, the piercing terminal seat is disposed on the circuit board, the wire management member has a plurality of core wire assembling slots for assembling the core wires of the cable, and the piercing terminals penetrate through the piercing terminal seat and are inserted into the core wire assembling slots respectively to be combined with the core wires of the cable.

8. The electrical connector as claimed in claim 7, wherein the fixing ring has a through hole, the screw portion and the flexible screw portion are disposed in the through hole, and the plurality of core wire assembling slots are surrounded by an extension surface disposed on an inner wall surface of the through hole.

9. The electrical connector of claim 1, further comprising a latch, the main body comprising a bottom portion, a top portion, two side portions and a front portion, the bottom portion and the top portion being connected to the front portion through the two side portions and the front portion, the two side portions being opposite to each other, the plug portion being connected to the front portion and being closer to the bottom portion than the top portion, the screw portion being integrally connected to a side of the top portion opposite to the front portion, the shielding portion being pivotally connected to the bottom portion of the main body, the latch being connected to the plug portion.

10. The electrical connector of claim 1, further comprising a grounding spring, wherein the grounding spring comprises a fixing portion and an abutting portion connected to each other, the fixing portion is located in the accommodating space and electrically contacts the main body portion, the abutting portion is located in the wire harness hole and electrically contacts a shielding layer of the cable, and a width of the abutting portion of the grounding spring decreases toward a direction away from the fixing portion.

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