Cable connector

Abstract

The utility model discloses a cable connector, including insulating seat body, inner conductor, outer conductor, insulator and cable, and the inner conductor is inserted in the insulator and is equipped with the insertion part and the connecting part, and the outer conductor is sleeved in the insulator outside, and the insulator insulating separates the inner conductor and the outer conductor, and the outer conductor is fixed in the insulating seat body and is equipped with the contact head of front end and the fixed tail of rear end, and the cable is equipped with the center conductor, the insulating layer of wrapping center conductor and the metal braid layer of being located in the insulating layer outside, and the connecting part is connected with the center conductor, and the fixed tail is connected with the braid layer. The contact head is equipped with a plurality of elastic tongues and a plurality of slots between the adjacent two elastic tongues along the circumferential distribution, and the slot is formed from the front end of the contact head to the rear extension, and each elastic tongue is provided with the slot from the front end to the rear extension, and the slot does not exceed the slot in the axial direction to the rear. Each elastic tongue of the outer conductor adds a slot, and the insertion force of the cable connector is reduced when plugging.

Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, and in particular to a high-quality cable connector for use in automobiles. Background Technology

[0002] The main application areas for electrical connectors include transportation, communication, networking, IT, medical, home appliances, and military electronic products. The rapid development of product technology and market growth in these application areas strongly drives the development of connector technology. To date, electrical connectors have evolved into a series of specialized products with a complete range of types and specifications, diverse structures, specialized focuses, distinct industry characteristics, and standardized systems. The MiniFakra connector is a well-known standard connector in the automotive electronics industry.

[0003] Existing MiniFakra connector assemblies are used for data transmission between automotive devices. They include board-end connectors and wire-end connectors. The wire-end connector comprises a housing, inner conductor, outer conductor, and insulating sleeve. The outer conductor is fixed within the housing, and the insulating sleeve is fixed within the outer conductor. The outer conductor is electrically connected to the shielding layer of the coaxial cable. The inner conductor is fixed within the insulating sleeve and is electrically connected to the center conductor of the coaxial cable. In actual production or assembly operations, due to limitations imposed by conditions and the environment, board-end connectors and wire-end connectors are typically not directly aligned. This places high demands on the mating ends of the connectors. However, existing wire-end connectors have poor tolerance capabilities, which can easily lead to misalignment when board-end connectors and wire-end connectors are mated.

[0004] Therefore, it is hoped that a new cable connector can be proposed to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a cable connector that reduces the insertion force during mating.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cable connector, comprising an insulating base, an inner conductor, an outer conductor, an insulator, and a cable extending rearward from the insulating base. The inner conductor is inserted into the insulator and has a plug-in portion at the front end and a connecting portion at the rear end. The outer conductor is sleeved on the outside of the insulator. The insulator insulatingly separates the inner conductor and the outer conductor. The outer conductor is fixed within the insulating base and has a contact head at the front end and a fixed tail at the rear end. The cable has a center conductor, an insulating layer wrapping the center conductor, and a metal braided layer located outside the insulating layer. The connecting portion of the inner conductor is connected to the center conductor, and the fixed tail of the outer conductor is connected to the braided layer. The contact head is provided with several elastic tongues evenly distributed in the circumferential direction and several slots located between each two adjacent elastic tongues. The slots are formed by extending axially backward from the front end face of the contact head. Each elastic tongue is provided with a slot extending axially backward from the front end face. The slot does not extend axially beyond the slot.

[0007] In a preferred embodiment, the elastic tongue is divided into two symmetrical elastic arms by the corresponding slot, and the slot and the groove are spaced apart in the circumferential direction.

[0008] In a preferred embodiment, the outer conductor is a sleeve structure made by deep drawing of metal and has a cylindrical main body. The contact head extends forward along the axial direction from the main body, the fixed tail extends backward along the axial direction from the main body, and the slot extends to the front end face of the main body.

[0009] In a preferred embodiment, the cable connector includes a rivet that is riveted to the fixed tail of the outer conductor, and the front end of the braided layer is clamped and fixed between the rivet and the fixed tail.

[0010] In a preferred embodiment, the cable has an insulating outer sheath, the braided layer is located between the insulating layer and the insulating outer sheath, and the riveting member has a front riveting part and a rear riveting part connected front and rear. The front riveting part is riveted to the fixed tail and the braided layer, and the rear riveting part is riveted to the outer side of the insulating outer sheath.

[0011] In a preferred embodiment, the insulating base has several plug cavities that extend through the axial direction. The plug cavities are arranged in two rows vertically, and the inner conductor, the outer conductor, and the insulator are housed in the corresponding plug cavities.

[0012] In a preferred embodiment, the plug cavity is provided with a forward-through insertion hole and a fixing hole extending rearward from the insertion hole, the insertion part and the contact head are located in the insertion hole, and the connecting part, the main body part, the fixing tail part and at least part of the cable are located in the fixing hole.

[0013] In a preferred embodiment, the insulating base is provided with a recessed groove from the top, the groove being connected downward to the fixing hole, and the cable connector includes a secondary latching member fixed in the plug cavity, the secondary latching member being inserted from the groove into the insulating base and locking with the insulating base.

[0014] In a preferred embodiment, the secondary fastener has a base housed in the slot and several fastening arms extending downward from the base. The fastening arms are vertically inserted to the bottom of the insulating base and located between two adjacent fixing holes.

[0015] In a preferred embodiment, the outer conductor is provided with a rubber sleeve that is injection molded on the outer periphery of the main body, and two adjacent buckle arms are engaged with the rubber sleeve of the outer conductor.

[0016] Compared with the prior art, this utility model has the following beneficial effects: The contact head is provided with several elastic tongues evenly distributed circumferentially and several slots located between each pair of adjacent elastic tongues. The slots are formed by extending axially backward from the front end face of the contact head. Each elastic tongue is provided with a slot extending axially backward from the front end face, and the slot does not extend axially beyond the slot. The addition of a slot in each elastic tongue of the outer conductor reduces the insertion force of the cable connector during mating, thereby ensuring smooth mating of the cable connector and avoiding connector malfunction during mating operations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the cable connector in a preferred embodiment of the present invention.

[0018] Figure 2 yes Figure 1 The diagram shows a three-dimensional view of the cable connector from another angle.

[0019] Figure 3 yes Figure 1 The diagram shown is an exploded view of the cable connector.

[0020] Figure 4 yes Figure 3 The diagram shows a three-dimensional representation of the outer conductor in the cable connector. Detailed Implementation

[0021] Please see Figures 1 to 4As shown, a preferred embodiment of this utility model discloses a cable connector 100, which can be used for data transmission between automotive devices. The cable connector 100 includes an insulating base 10, an inner conductor 20, an outer conductor 30, an insulator 40, a riveting member 50, a cable 60, and a secondary locking member 70. The cable 60 extends rearward out of the insulating base 10. The insulating base 10 has several plug cavities 11 that extend axially through it. The plug cavities 11 are arranged in two vertical rows, and the inner conductor 20, outer conductor 30, and insulator 40 are housed within the corresponding plug cavities 11.

[0022] The plug cavity 11 is provided with a forward-through insertion hole 12 and a rearward-through fixing hole 13. The insertion hole 12 is located at the front end of the insulating base 10, and the fixing hole 13 extends rearward from the insertion hole 12 and penetrates the rear end face of the insulating base 10. The insulating base 10 is also provided with a groove 14 that is recessed inward from the top surface, and the groove 14 communicates downward with the fixing hole 13.

[0023] The inner conductor 20 is configured as a tubular structure and inserted into the insulator 40. The inner conductor 20 has a plug-in portion 21 at the front end and a connecting portion 22 at the rear end. The plug-in portion 21 is annular, and its front end has an insertion port for inserting the mating terminals of a connector. The connecting portion 22 is connected to the front end of the cable 60. The outer conductor 30 is sleeved on the outside of the insulator 40, so that the insulator 40 provides insulation between the inner conductor 20 and the outer conductor 30.

[0024] The outer conductor 30 is a sleeve structure made by deep drawing of metal and is fixed inside the plug cavity 11 of the insulating base 10. The outer conductor 30 has a cylindrical main body 31, a contact head 32 at the front end, and a fixed tail 33 at the rear end. The insulator 40 is disposed inside the cylindrical main body 31, which increases the stability of the hollow cylindrical inner side and the insulator 40 support connection, improves the positional accuracy of the inner conductor 20, and makes its contact with the mating connector reliable. The contact head 32 extends forward along the axial direction from the main body 31, and the fixed tail 33 extends backward along the axial direction from the main body 31.

[0025] In this embodiment, the plug-in portion 21 and the contact head 32 are located in the plug-in hole 12, and the connecting portion 22, the main body portion 31, the fixing tail portion 33, and at least a portion of the cable 60 are located in the fixing hole 13. Further, the contact head 32 is provided with several elastic tongues 34 evenly distributed circumferentially and several slots 35 located between each pair of adjacent elastic tongues 34. The slots 35 extend axially backward from the front end face of the contact head 32 and extend to the front end face of the main body portion 31. In this embodiment, the number of elastic tongues 34 is three, which can largely ensure the stability of the contact between the outer conductor 30 and the other connector. Simultaneously, each elastic tongue 34 is provided with a slot 341 extending axially backward from the front end face, and the slot 341 does not extend axially beyond the slot 35. That is, the elastic tongue 34 is divided into two symmetrical elastic arms 342 by the corresponding slot 341, and the slots 341 and slots 35 are spaced apart circumferentially.

[0026] The riveting member 50 is riveted to the fixed tail 33 of the outer conductor 30, and the riveting member 50 has a front riveting part 51 and a rear riveting part 52 connected front and rear. The cable 60 has a center conductor, an insulating layer wrapping the center conductor, a metal braided layer located outside the insulating layer, and an insulating outer sheath, with the braided layer located between the insulating layer and the insulating outer sheath. The connecting part 22 of the inner conductor 20 is connected to the center conductor, and the fixed tail 33 of the outer conductor 30 is connected to the braided layer, with the front end of the braided layer clamped and fixed between the riveting member 50 and the fixed tail 33. Specifically, the front riveting part 51 is riveted to the fixed tail 33 of the outer conductor 30 and the braided layer, and the rear riveting part 52 is riveted to the outer side of the insulating outer sheath.

[0027] The secondary latching member 70 is fixed in the plug cavity 11. The secondary latching member 70 is inserted into the insulating base 10 from the slot 14 and locks with the insulating base 10. The secondary latching member 70 has a base 71 received in the slot 14 and several latching arms 72 extending downward from the base 71. The latching arms 72 are vertically inserted to the bottom of the insulating base 10 and located between two adjacent fixing holes 13. Further, the outer conductor 30 has a rubber sleeve 36 injection-molded on the outer periphery of the main body 31. Two adjacent latching arms 72 are latched on the rubber sleeve 36 of the outer conductor 30. At the same time, the lateral side of the latching arm 72 has an arc-shaped structure. The two arc-shaped structures between two adjacent latching arms 72 form a bracket-shaped clamping groove 73. Each clamping groove 73 clamps the rubber sleeves 36 of two vertically arranged outer conductors 30.

[0028] In this invention, the contact head 32 is provided with several elastic tongues 34 evenly distributed circumferentially and several slots 35 located between each pair of adjacent elastic tongues 34. The slots 35 extend axially backward from the front end face of the contact head 32. Each elastic tongue 34 is provided with a slot 341 extending axially backward from the front end face, and the slot 341 does not extend axially beyond the slot 35. The addition of a slot 341 to each elastic tongue 34 of the outer conductor 30 reduces the insertion force of the cable connector 100 during mating, thereby ensuring smooth mating of the cable connector 100 and preventing connector malfunction during mating operations.

[0029] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. A cable connector comprising an insulating base, an inner conductor, an outer conductor, an insulator, and a cable extending rearward from the insulating base, wherein the inner conductor is inserted into the insulator, the inner conductor having a front insertion portion and a rear connection portion, the outer conductor being sleeved on the outside of the insulator, the insulator insulatingly separating the inner conductor and the outer conductor, the outer conductor being fixed within the insulating base and having a front contact head and a rear fixed tail, the cable having a center conductor, an insulating layer wrapping the center conductor, and a metal braided layer outside the insulating layer, the connection portion of the inner conductor being connected to the center conductor, and the fixed tail of the outer conductor being connected to the braided layer; characterized in that: The contact head is provided with several elastic tongues evenly distributed in the circumferential direction and several slots located between each two adjacent elastic tongues. The slots are formed by extending axially backward from the front end face of the contact head. Each elastic tongue is provided with a slot extending axially backward from the front end face. The slot does not extend axially beyond the slot.

2. The cable connector as described in claim 1, characterized in that: The elastic tongue is divided into two symmetrical elastic arms by the corresponding slot, and the slot and the groove are spaced apart in the circumferential direction.

3. The cable connector as described in claim 2, characterized in that: The outer conductor is a sleeve structure made by deep drawing of metal and has a cylindrical main body. The contact head extends forward along the axial direction from the main body, the fixed tail extends backward along the axial direction from the main body, and the slot extends to the front end face of the main body.

4. The cable connector as described in claim 3, characterized in that: The cable connector includes a rivet that is riveted to the fixed tail of the outer conductor, and the front end of the braided layer is clamped and fixed between the rivet and the fixed tail.

5. The cable connector as described in claim 4, characterized in that: The cable has an insulating outer sheath, and the braided layer is located between the insulating layer and the insulating outer sheath. The riveting member has a front riveting part and a rear riveting part connected front and rear. The front riveting part is riveted to the fixed tail and the braided layer, and the rear riveting part is riveted to the outer side of the insulating outer sheath.

6. The cable connector as described in claim 3, characterized in that: The insulating base has several plug cavities that extend through the axial direction. The plug cavities are arranged in two rows vertically, and the inner conductor, the outer conductor, and the insulator are housed in the corresponding plug cavities.

7. The cable connector as described in claim 6, characterized in that: The plug cavity is provided with a forward-through insertion hole and a fixing hole extending rearward from the insertion hole. The insertion part and the contact head are located in the insertion hole, and the connecting part, the main body, the fixing tail and at least part of the cable are located in the fixing hole.

8. The cable connector as described in claim 7, characterized in that: The insulating base has a recessed groove that extends inward from the top and is connected downward to the fixing hole. The cable connector includes a secondary latching member fixed in the plug cavity. The secondary latching member is inserted into the insulating base from the groove and locks with the insulating base.

9. The cable connector as described in claim 8, characterized in that: The secondary fastener has a base housed in the slot and several fastening arms extending downward from the base. The fastening arms are vertically inserted to the bottom of the insulating base and located between two adjacent fixing holes.

10. The cable connector as described in claim 9, characterized in that: The outer conductor is provided with a rubber sleeve that is injection molded on the outer periphery of the main body, and two adjacent buckle arms are held in place by the rubber sleeve of the outer conductor.

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