TWM635883U - Plug connector - Google Patents

Abstract

This work is a plug connector, including a first shell, a second shell and The cable assembly between the second housings, the cable assembly includes a pair of terminals, two wire cores connected to the tails of the pair of terminals, and a cable sleeve wrapping the wire cores in sequence from front to back, and the second housing includes A pair of terminal slots for accommodating a pair of terminals, a wire core holding part for holding two wire cores, and the first and second housings are provided with mutually matched cable holding parts for holding the cable sleeve . Such setting can stably hold the terminals, wire cores and cable sleeves, avoiding impedance fluctuations caused by shaking or loosening during application.

Description

plug connector

The present invention relates to a plug connector.

For connectors used in the automotive field, higher reliability is required than conventional connectors, especially in vibration and shock environments, and it is necessary to ensure that both the inside and outside of the connector are loose. For the inside of the connector, if it is a cable connector with a double-terminal structure, the terminal, the wire core connected to the terminal, and the cable sleeve surrounding the wire core may shake or loosen under vibration and shock, especially for the wire core. In other words, the shaking between the two cores will affect the impedance of the connector, resulting in impedance fluctuations, thereby affecting the performance of the connector. Similarly, if the terminal and the cable sleeve are shaken or loosened, the wire core will also be shaken.

Therefore, it is necessary to provide an improved plug connector to solve the above problems.

The purpose of the invention is to provide a plug connector with a wire core holding portion.

In order to achieve the above purpose, this creation can adopt the following technical solutions:

A plug connector, comprising a first housing, a second housing, and a cable assembly held between the first and second housings, the cable assembly sequentially includes a pair of terminals from front to back, connected to the pair of terminals The two wire cores at the tail and the cable sleeve wrapping the wire cores, the second housing includes a pair of terminal slots for accommodating a pair of terminals, and a wire core holding part for holding the two wire cores. The first, The second housing is provided with mutually matched cable clamping parts for clamping the cable sleeve.

Compared with the conventional technology, the invention has the following effects: the wire core is held by the wire core holding part, thereby avoiding shaking of the two wire cores, maintaining the distance between the wire cores, and avoiding impedance fluctuations.

100: plug connector

1: Plastic case

11: Docking cavity

111: Rear end face

12: storage tank

13:Lock arm

131: Docking cavity

14: First latch slot

2: Plastic inner shell

21: First shell

211: Groove

212: Hook

213: lock block

214: limit block

215: Lock recess

22: Second shell

220: second latch slot

221: terminal slot

222: Wire core holding part

223: card embedding slot

224: Terminal holding part

225: Step Department

226: fixed slot

227: opening

228: limit slot

229: lock wall

23: Cable holding part

24: card slot

25: Cable groove

3: Cable assembly

31: terminal

311: contact part

312: contraction part

313: Cable holding part

314: Resistance Department

32: wire core

33: Cable sleeve

331: Cable limiting groove

4: Latch

41: Raised

The first figure is a perspective view of the plug connector of this creation; the second figure is a perspective view from another perspective shown in the first figure; the third figure is an exploded view of the plug connector shown in the first figure; Figure 4 is an exploded view of the plastic inner shell and cable shown in Figure 3; Figure 5 is a further exploded view shown in Figure 4; Figure 6 is an exploded view from another perspective shown in Figure 5; Figure 3 is a perspective view of the plastic housing shown in Figure 3; Figure 8 is a cross-sectional view along VIII-VIII in Figure 1; and Figure 9 is a cross-sectional view along IX-IX in Figure 1.

In order to facilitate a better understanding of the purpose, structure, features, and effects of this creation, this creation will now be further described in conjunction with the accompanying drawings and specific implementation methods.

Referring to FIGS. 1 to 9 , the plug connector 100 includes a plastic shell 1 , a plastic inner shell 2 accommodated in the plastic shell 1 , and a cable assembly 3 fixed on the plastic inner shell 2 . The plastic inner shell 2 includes a first shell 21 and a second shell 22 that cooperate with each other. The cable assembly 3 sequentially includes a pair of terminals 31 , two wire cores 32 connected to tails of the pair of terminals 31 , and a cable sheath 33 wrapping the wire cores 32 in sequence from front to back. The first and second shells 21 , 22 are combined up and down to form a cable slot 25 for clamping a cable sleeve 33 . The second housing 22 includes a pair of terminal slots 221 for accommodating a pair of terminals 31 , and a wire core holding portion 222 for holding two wire cores 32 . The first and second housings 21 , 22 are provided with mutually matched cable clamping portions 23 for clamping the cable sleeve 33 .

The two wire cores 32 are arranged in parallel at the wire core clamping portion 222 . The wire core holding part 222 can be integrally provided with the second housing 22 , or can be separately provided. Of course, in this embodiment, the wire core holding part 222 is integrally provided with the second housing 22 . The wire core clamping part 222 is provided with a pair of parallel engaging grooves 223, and the wire core 32 is fixed in the engaging groove 223, so as to ensure that the distance between the two wire cores 32 remains unchanged, and avoids the wire core 32 from shaking. Impedance fluctuations.

Please refer to FIG. 4 to FIG. 6 , the terminal groove 221 is provided with a terminal holding portion 224 surrounding the end of the contact portion 311 and the front end of the cable holding portion 313 . The terminal holding portion 224 extends upwards from both sides of the terminal groove 221 and fits into the corresponding groove 211 of the first housing 21 . The terminal holding portion 224 is in interference fit with the terminal 31 to prevent the terminal 31 from moving up and down. On both sides of the end of the contact part 311, there are abutting parts 314 formed by tearing and extending straight backwards. The terminal groove 221 is provided with a step part 225 matched with the contraction part 312. The abutting part 314 is abutted against the front end of the step part 225 backwards. Avoid terminal 31 moving backwards.

The first housing 21 has a pair of C-shaped elastic hooks 212 at its front end and locking blocks 213 protruding outward from both sides of its rear end. The second housing 22 has a fixing slot 226 at its front end that fits with the hook 212 , and an opening 227 at its rear end that fits with the locking block 213 . The first housing 21 extends forward at the middle position of the front end to form a limiting block 214 , and the second housing 22 is provided with a limiting groove 228 cooperating with the limiting block 214 . Both sides of the rear end of the second housing 22 extend upward to form locking walls 229 , and the opening 227 is disposed on the locking walls 229 . When the first and second shells 21 and 22 are assembled up and down, the stop block 214 at the front end and the stop slot 228 cooperate with the lock block 213 at the rear end and the opening 227, so that the first and second shells 21 , 22 precisely fit and fixed.

Both sides of the cable cover 33 are provided with vertically extending cable limiting grooves 331, and the cable clamping parts 23 of the first and second housings 21 and 22 are combined in the vertical direction to be clamped in the cable limiting grooves 331 . Compared with conventional connectors that use sharp ribs or teeth to directly clamp the cable cover 33 and cause damage, the cable limiting groove 331 can pre-control the cutting position on the cable cover to avoid accidental damage, and at the same time ensure that the plastic inner shell 2 The retaining force with the cable sheath 33 prevents the external stress from being transmitted to the wire core or terminal through the cable sheath to cause impedance fluctuations.

The plastic housing 1 includes a docking cavity 11 penetrating forward and a receiving groove 12 penetrating backward. The first and second casings 21 and 22 are accommodated in the receiving groove 12 . The plastic housing 1 is further provided with an elastic locking arm 13 extending forward between the docking cavity 11 and the receiving groove 12 , as shown in FIG. 7 . The locking arm 13 extends forward and does not exceed the rear end surface 111 of the docking cavity 11 . The outer surface of the first housing 21 is provided with a locking recess 215 that cooperates with the locking arm 13 to ensure that the plastic inner shell 2 is installed in place, and can also limit the axial position of the plastic inner shell 2 .

As shown in FIG. 3 , the plug connector 100 further includes an L-shaped latch 4 and a latch groove penetrating through the plastic shell 1 and the second housing 22 in the transverse direction. The latch slot is formed at the junction of the plastic housing 1 and the second housing 22 , and the latch slot includes the first latch slot 14 formed in the plastic housing 1 and the second latch slot 220 formed in the second housing 22 . The latch member 4 is accommodated in the latch groove, and is used for restricting the axial movement of the first and second housings 21 and 22 . The latch 4 is provided with a protrusion 41 , and the second housing 22 is provided with a locking groove 24 cooperating with the protrusion 41 , so that the latch 4 is stably held in the latch groove.

To sum up, this creation meets the requirements of a new patent, and a patent application is filed according to law. However, the above-mentioned ones are only preferred embodiments of this creation, and the scope of this creation is not limited to the above-mentioned embodiments. All equivalent modifications or changes made by those who are familiar with the skills of this case in accordance with the spirit of this creation are welcome. Should be covered in the scope of the following patent applications.

100: plug connector

1: Plastic case

11: Docking cavity

14: First latch slot

21: First shell

22: Second shell

220: second latch slot

4: Latch

41: Raised

Claims (10)

A plug connector, comprising a first housing, a second housing, and a cable assembly held between the first and second housings, the cable assembly sequentially includes a pair of terminals from front to back, connected to the pair of terminals The two wire cores at the tail and the cable sleeve covering the wire cores, wherein: the second housing includes a pair of terminal slots for accommodating a pair of terminals, and a wire core holding part for holding the two wire cores. 1. The second housing is provided with mutually cooperating cable clamping parts for clamping the cable sleeve. The plug connector according to claim 1, wherein the two wire cores are arranged in parallel at the wire core holding portion. The plug connector according to claim 2, wherein the terminal includes a contact portion, a cable holding portion, and a contraction portion connected between the contact portion and the cable holding portion, and the contraction portion is connected to the end of the contact portion and the cable The front end of the holding part forms a dumbbell-shaped limiting part that is thinner in the middle and thicker at the two ends. The plug connector as described in claim 3, wherein the terminal groove is provided with a terminal holding portion that surrounds the end of the contact portion and the front end of the cable holding portion, and the terminal holding portion extends from both sides of the terminal groove. extending laterally and embedded in a groove corresponding to the first shell. The plug connector as described in claim 4, wherein the two sides of the end of the contact part are provided with resisting parts formed by tearing and extending straight backward, and the terminal groove is provided with a step part matching the contraction part, so The abutting portion is abutted against the front end surface of the stepped portion backward. The plug connector according to claim 5, wherein the first housing is provided with a pair of C-shaped elastic hooks at its front end and locking blocks protruding outward on both sides of its rear end, and the second housing The front end of the body is provided with a fixing groove for matching with the hook, and the rear end is provided with an opening for matching with the locking block. The plug connector according to claim 1, wherein the two sides of the cable sleeve are provided with vertically extending cable limiting grooves, and the cable clamping parts of the first and second housings are combined in the vertical direction to be clamped in the cable limiting groove. The plug connector according to claim 1, wherein the plug connector further includes a plastic shell for housing the first and second shells, the plastic shell includes a docking cavity penetrating forward and a receiving groove penetrating backward, so The first and second casings are accommodated in the accommodating groove. The plug connector according to claim 8, wherein the plastic shell is further provided with an elastic locking arm extending forward between the docking cavity and the receiving groove, and the outer surface of the first shell is provided with a The lock arm is matched with the lock recess. The plug connector according to claim 9, wherein the plug connector further includes a latch and a latch groove passing through the plastic shell and the second housing in a transverse direction, and the latch is accommodated in The latch slot is used to limit the axial movement of the first and second housings.

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