CN217656093U

CN217656093U - Coaxial cable connector

Info

Publication number: CN217656093U
Application number: CN202221401512.5U
Authority: CN
Inventors: 金海伟; 赖小林; 尹绪引
Original assignee: Shenzhen Electric Connector Technology Co Ltd
Current assignee: Shenzhen Electric Connector Technology Co Ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-10-25
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a coaxial cable connector, including insulating base, set up in insulating base and with the signal terminal of the inner conductor electrical contact of cable to and set up in the insulating base outside and with the shielding shell of the shielding layer electrical contact of cable. The signal terminal comprises a substrate, a contact part positioned below the substrate, a U-shaped clamping part positioned at the rear end of the substrate, a transition section positioned at the front end of the substrate and a bending part connected with the transition section and extending backwards. When the coaxial cable connector is assembled with the cable, the inner conductor penetrates through the U-shaped clamping portion to be electrically connected with the signal terminal, and the inner conductor of the bending portion is clamped between the U-shaped clamping portion and the bending portion. Compared with the prior art, the coaxial cable connector claimed by the application has high precision and high contact stability.

Description

Coaxial cable connector

Technical Field

The utility model relates to an electric connector technical field especially relates to a coaxial cable connector.

Background

With the rapid development of the internet technology, the internet of things technology is becoming mature day by day, and miniature coaxial cable connectors are adopted in various electronic products and electronic equipment, such as digital home appliances, security monitoring, positioning navigation, self-service terminals and the like. As the requirements for transmission speed and transmission precision increase, the requirements for connection precision and technical requirements of coaxial cable connectors also increase. The signal terminal and the cable in the existing coaxial cable connector are generally fixed together by spot welding, the requirement on a welding process is extremely high, and the problems of poor contact, low signal transmission precision and the like of the coaxial cable connector are caused by poor welding in the actual industrial production or use process.

Therefore, a coaxial cable connector with high precision and high contact stability is needed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a coaxial cable connector, which has the performances of high contact stability, high precision and the like under the condition of meeting the development requirement of product miniaturization.

In order to realize the purpose, the utility model discloses the technical scheme who takes is:

a coaxial cable connector comprising an insulating base, a signal terminal provided in the insulating base, and a shield shell provided outside the insulating base, wherein:

the signal terminal comprises a substrate, a contact part positioned below the substrate, a U-shaped clamping part positioned at the rear end of the substrate, a transition section positioned at the front end of the substrate and a bending part which is connected with the transition section and extends backwards;

the signal terminal is electrically contacted with the inner conductor of the cable, and the shielding shell is electrically contacted with the shielding layer of the cable;

when the coaxial cable connector is assembled with a cable, the inner conductor penetrates through the U-shaped clamping portion to be electrically connected with the signal terminal, the bending portion is bent, and the inner conductor is clamped between the U-shaped clamping portion and the bending portion.

Preferably, a first cable contact part protruding upwards is arranged on the bottom of the U-shaped clamping part.

Preferably, the side walls of the two sides of the U-shaped clamping portion are provided with second cable contact portions protruding inwards.

Preferably, a third cable contact part protruding downwards is arranged on the bending part.

Preferably, the bending part is provided with a tongue piece structure extending downwards.

Preferably, a first through hole structure is arranged on the substrate, and after the coaxial cable connector is assembled with the cable bent at the bending part, the first through hole structure is located right below the tongue piece structure.

Preferably, the contact part is a U-shaped structure, and the first through hole structure is located at the bottom of the U-shaped structure.

The beneficial effects of the utility model reside in that: set up U type joint portion in the rear end of the base plate of signal terminal, the changeover portion that the front end of base plate set up extends backward and forms the portion of bending, the inner conductor of cable passes U type joint portion, it rocks to restrict about it, the portion of bending buckles downwards, make its end be located the inslot of U type joint portion, thereby make the inner conductor by the centre gripping between U type joint portion and the portion of bending, form stable electrical contact, not only be favorable to improving coaxial cable connector's contact stability, still help improving its precision.

Drawings

Fig. 1 is a schematic structural view of a coaxial cable connector (not fastened) according to an embodiment of the present invention;

fig. 2 is an exploded view of a coaxial cable connector (not shown) according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a coaxial cable connector (snap fit) according to an embodiment of the present invention;

fig. 4 is a schematic view of another perspective of the coaxial cable connector (snap fit) according to the embodiment of the present invention;

fig. 5 is a schematic first cross-sectional view of a coaxial cable connector (snap fit) according to an embodiment of the present invention;

fig. 6 is a second cross-sectional view of a coaxial cable connector (snap fit) according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a signal terminal (an unbent bent portion) according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a signal terminal (bending portion) according to an embodiment of the present invention;

fig. 9 is a schematic structural view illustrating a signal terminal and a cable fixed together according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of the signal terminal of fig. 9 secured to a cable.

Description of the drawings: 100. an insulating base; 110. an insulating body; 120. a capping part; 200. a shield case; 210. a joint portion; 220. an upper cover body; 300. a signal terminal; 310. a substrate; 311. a first via structure; 320. a contact portion; 330. a U-shaped clamping part; 331. a first cable contact; 332. a second cable contact; 340. a transition section; 350. a bending part; 351. a third cable contact; 352. a tongue structure; 400. a cable; 410. an inner conductor; 420. an insulating layer; 430. and a shielding layer.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from the embodiments described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not limited to the embodiments disclosed below.

The embodiment of the application provides a coaxial cable connector, and solves the technical problems of poor contact and low signal transmission precision of the coaxial cable connector caused by poor welding in the prior art. It should be noted that, in the present application, the upper, top or top refers to the direction of the coaxial cable connector when the coaxial cable connector is connected with the mating connector in a mating manner, and the opposite direction is lower, bottom or bottom; rear, rear or rear end refers to the direction in which the cable is located relative to the signal terminals, the opposite direction being front, forward or front end.

As shown in fig. 1 to 10, the embodiment of the present application:

a coaxial cable connector includes an insulating base 100, a signal terminal 300 disposed in the insulating base 100, and a shield shell 300 disposed outside the insulating base 100. The cable 400 connected to the coaxial cable connector includes an inner conductor 410, an insulating layer 420 and a shielding layer 430, which are sequentially disposed from inside to outside, and generally, a coating layer is often disposed outside the shielding layer 430. When the coaxial cable connector is assembled with the cable 400, the signal terminal 300 is electrically connected to the inner conductor 410, and the shield shell 200 is electrically connected to the shield layer 430.

The signal terminal 300 includes a substrate 310, a contact portion 320 located below the substrate 310, a U-shaped clamping portion 330 located at the rear end of the substrate 310, a transition section 340 located at the front end of the substrate 310, and a bending portion 350 connected to the transition section 340 and extending backward. The contact portion 320 is used for electrically contacting with a mating connector (not shown) to transmit signals and/or power. When the coaxial cable connector is assembled with the cable 400, the inner conductor 410 passes through the U-shaped clamping portion 330, the U-shaped clamping portion 330 limits the inner conductor 410 from shaking or separating from the signal terminal 300 in the left-right direction, at this time, the bending portion 350 is bent to make the tail end of the inner conductor located in the groove of the U-shaped clamping portion 330, and the inner conductor 410 is clamped between the bottom of the U-shaped clamping portion 330 and the bending portion 350, so that stable electrical contact between the coaxial cable connector and the cable 400 can be ensured. In addition, the U-shaped clamping portion 330 is also easy to spot weld, so as to further ensure a stable electrical contact between the coaxial cable connector and the cable.

Illustratively, in one embodiment, the insulating base 100 includes an insulating body 110 and a capping portion 120, the shielding shell 200 includes a joint portion 210 and an upper cover 220, and the signal terminal 300 includes a substrate 310, a contact portion 320, a U-shaped clamping portion 330, a transition segment 340 and a bending portion 350. The insulative housing 110 is located inside the engaging portion 210, the contact portion 320 is located inside the insulative housing 110 and exposed at a bottom surface thereof to electrically contact with a terminal structure of the mating connector for transmitting signals and/or power, and the engaging portion 210 is electrically contacted with a shielding structure of the mating connector for improving electromagnetic shielding performance and preventing signal leakage or signal interference. When the coaxial cable connector is assembled with a cable, the bending portion 350 is bent to connect the cable 400 and the signal terminal 300, and then the capping portion 120 is turned over to further reinforce the contact stability between the cable 400 and the signal terminal 300, and then the cover 220 is turned over, so that the coaxial cable connector has excellent electromagnetic shielding performance while having excellent contact stability and high precision. The assembly process of the coaxial cable connector is simple and efficient, and the production efficiency is improved.

For solving among the prior art coaxial cable connector because the bad contact that leads to of welding, the technical problem that the signal transmission precision is low, this application sets up U type joint portion through the rear end at the base plate of signal terminal, the changeover portion that the front end of base plate set up extends backward and forms the portion of bending, the inner conductor of cable passes U type joint portion, it shakes to restrict about it, the portion of bending of buckling downwards, make its end be located the inslot of U type joint portion, thereby make the inner conductor by the centre gripping between U type joint portion and the portion of bending, form stable electrical contact, not only be favorable to improving coaxial cable connector's contact stability, still help improving its precision.

Preferably, the bottom of the U-shaped clamping portion 330 is provided with a first cable contact portion 331 protruding upward, for increasing the clamping force of the U-shaped clamping portion 330 and the bending portion 350 on the inner conductor 410 of the cable 400, thereby being beneficial to further improving the contact stability and transmission precision of the coaxial cable connector.

Preferably, the second cable contact portions 332 protruding inwards are disposed on the sidewalls of the two sides of the U-shaped clamping portion 330, so as to further limit the moving space of the inner conductor 410 in the U-shaped clamping portion 330, and further facilitate further improving the contact stability of the coaxial cable connector. In some embodiments, the first cable contact portion 331 and the second cable contact portion 332 are connected to each other and can be formed simultaneously by the same processing technology, and the processing technology is simple, which is beneficial to improving the production efficiency.

Preferably, the bending part 350 is provided with a third cable contact part 351 protruding downward, so as to increase the clamping force of the U-shaped clamping part 330 and the bending part 350 on the inner conductor 410 of the cable 400, thereby being beneficial to further improving the contact stability of the coaxial cable connector. In some embodiments, the bending portion 330 is provided with a third cable contact portion 351, the u-shaped clamping portion 330 is provided with a first cable contact portion 331, when the coaxial cable connector is assembled with a cable, after the bending portion 350 is bent, the third cable contact portion 351 is disposed opposite to the first cable contact portion 331, and the inner conductor 410 is tightly clamped between the first cable contact portion 331 and the third cable contact portion 351, so that the coaxial cable connector and the cable have excellent contact stability and high transmission precision.

Preferably, the bending portion 350 is provided with a tongue structure 352 extending downwards. Generally, when the coaxial cable connector is assembled, the free end of the tongue structure 352 is in electrical contact with the substrate 310, which is beneficial to reduce the overall distance that the signal terminals 300 are in contact. In addition, the tongue piece structure 352 has a certain supporting function, so that the structural strength of the bending part 350 is increased, and the performance of the bending part is prevented from being influenced by deformation in the bending process; the tongue structure 352 may also intercept the inner conductor 410, preventing the inner conductor 410 from being assembled into the signal terminal 300 too long, which may affect the consistency of the coaxial cable connector structure and performance. Specifically, the substrate 310 is provided with a first through hole structure 311, and after the cable 400 is assembled on the coaxial cable connector and the bending portion 350 is bent, the first through hole structure 311 is located right below the tongue piece structure 352. More specifically, the contact portion 320 has a U-shaped structure, and the first via structure 311 is located at the bottom of the U-shaped structure.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A coaxial cable connector comprising an insulative base, signal terminals disposed within the insulative base, and a shield shell disposed outside the insulative base, wherein:

the signal terminal comprises a substrate, a contact part positioned below the substrate, a U-shaped clamping part positioned at the rear end of the substrate, a transition section positioned at the front end of the substrate and a bending part connected with the transition section and extending backwards;

2. The coaxial cable connector defined in claim 1, wherein: and a first cable contact part protruding upwards is arranged at the bottom of the U-shaped clamping part.

3. The coaxial cable connector defined in claim 1, wherein: and the side walls of the two sides of the U-shaped clamping part are provided with second cable contact parts protruding inwards.

4. The coaxial cable connector defined in claim 1, wherein: and a third cable contact part protruding downwards is arranged on the bending part.

5. The coaxial cable connector defined in claim 1, wherein: and a tongue piece structure extending downwards is arranged on the bending part.

6. The coaxial cable connector defined in claim 5, wherein: be equipped with first through-hole structure on the base plate, work as coaxial cable connector assembly cable is buckled behind the portion of bending, first through-hole structure is located under the tongue piece structure.

7. The coaxial cable connector defined in claim 6, wherein: the contact part is of a U-shaped structure, and the first through hole structure is located at the bottom of the U-shaped structure.