CN203707357U - coaxial cable adapter - Google Patents

Abstract

A coaxial cable adapter comprises a body, a tubular conductor arranged in the body, and an insulating bushing arranged between the body and the tubular conductor. The two ends of the tubular conductor are respectively provided with a plurality of guide pieces spaced by gaps, so that a receiving groove for inserting a coaxial cable core wire is formed between the plurality of guide pieces at each end, and the middle section area of the plurality of guide pieces is recessed toward the receiving groove, and the middle section area of each guide piece is convexly provided toward the receiving groove to form an arched flange, so that the tubular conductor can be elastically clamped by the arched flange of the plurality of guide pieces to tightly clamp the coaxial cable core wire inserted in the receiving groove, so as to achieve stable high-frequency signal transmission.

Description

coaxial cable adapter

technical field

The utility model relates to a coaxial cable adapter, in particular to a coaxial cable which can be tightly and elastically clamped and inserted into a containing groove by setting an arched flange inwardly on the middle section of the guide piece. Cable cores for high-frequency signal transmission.

Background technique

Coaxial cable is a signal transmission line that has been widely used in TV and network systems for carrying and transmitting high-frequency signals, and is locked to the corresponding audio-visual or network equipment through the coaxial cable connector at the end. Coaxial cable connector. Take the common F-type coaxial cable connector as an example, which connects the coaxial cable with a sleeve. The front end of the sleeve is provided with a rotatable ring nut, and the inner surface of the ring nut is provided with a female thread. , and its outer surface is provided with a hexagonal outer wall for fingers or holding tools to lock the coaxial cable connector to the coaxial cable connection seat.

When configuring coaxial cables, adapters are often used to electrically connect different cables to each other. Generally speaking, the adapters used for the above-mentioned F-type coaxial cable connectors include conductive external male threads arranged at both ends of the body, axially arranged The conductive terminal in the body, and the insulating bushing arranged between the conductive terminal and the conductive external male thread. The two ends of the conductive terminal each have a clamping end, the clamping end has a plurality of elastic pieces separated by gaps, and the clamping end is provided with a taper formed by tapering its inner diameter axially inwardly from the opening When different coaxial cables are respectively combined with the two ends of the adapter, the core wires of one of the coaxial cables are clamped by the plurality of shrapnels at the clamping end, and the coaxial cables at both ends of the adapter are electrically connected.

In the above-mentioned adapter, it is not only used as a combination element for combining different coaxial cables, but also as a transmission element for electronic transmission between different coaxial cables. Therefore, unstable combination will have negative effects on signal transmission. Influence. Since the combination of the above-mentioned conductive terminal and the core wire of the coaxial cable is to use a plurality of shrapnels to cooperate and elastically clamp the core wire, so that after a period of time, multiple core wire plugging and pulling actions, especially the plugging and pulling actions of different diameter core wires Finally, it is easy to cause poor electrical connection when the shrapnel is elastically fatigued and cannot tightly clamp the core wire, resulting in a loss of high-frequency output efficiency.

Utility model content

In view of this, in order to allow the coaxial cable adapter to obtain a stable bonding state with the core wires combined with each other after multiple coaxial cable core wires are plugged and pulled out, so as to maintain good electrical contact, the inventors actively Years of experience and continuous R&D and improvement lead to the creation of the utility model.

The main purpose of this utility model is to provide a coaxial cable adapter, which can be inserted into the container of the tubular conductor by protruding to form an arched flange on the middle section of each guide piece of the tubular conductor. When placed in the groove, the core wire of the coaxial cable is elastically clamped by the arched flanges on the multi-piece guide pieces at each end of the tubular conductor.

In order to achieve the above-mentioned purpose, the utility model provides a coaxial cable adapter, which includes a body, a tubular conductor disposed in the body, and an insulating bush disposed between the body and the tubular conductor. Each end has a plurality of guide pieces separated by gaps to form accommodating grooves for inserting coaxial cable core wires between the plurality of guide pieces at each end, wherein:

The middle section area of the multi-piece guide pieces is recessed toward the accommodation groove, and the middle section area of each guide piece is protruded into the accommodation groove to form an arched flange, so that the tubular conductor is guided by the arched flange of the multi-piece guide pieces. The core wire of the coaxial cable inserted in the accommodating groove is clamped tightly and elastically.

The coaxial cable adapter, wherein: the arched flange is in the shape of a strip.

Said coaxial cable adapter, wherein: the middle section of each guide piece is provided with a flat bottom concave toward the receiving groove, and the arched flange is arranged on the flat bottom.

The beneficial effect of the utility model is: after the coaxial cable is combined, the core wire of the coaxial cable can be stably combined in the tubular conductor to maintain good electrical contact and obtain better high-frequency transmission efficiency.

In order to further understand the utility model, the preferred embodiments are given below, and with the help of the accompanying drawings and figure numbers, the specific components of the utility model and the functions achieved are described in detail as follows.

Description of drawings

FIG. 1 is a schematic view of an embodiment of the coaxial cable connector of the present invention.

FIG. 2 is a schematic cross-sectional view of the embodiment of FIG. 1 .

FIG. 3 is a schematic diagram of the appearance of the tubular conductor in the embodiment of FIG. 1 .

Fig. 3A is a schematic cross-sectional view of the tubular conductor along the line a-a' in the embodiment of Fig. 3 .

Description of reference signs: 1-body; 10-channel; 11-male thread; 12-flange; 2-tubular conductor; 20-gap; 21-guide; 22-accommodating groove; - arched flange; 3 - insulating bushing; 31 - perforation; 32 - guiding part; 4 - coaxial cable; 41 - connector; 411 - internal female thread; 42 - core wire.

Detailed ways

Please refer to FIGS. 1-2 , which are an embodiment of the coaxial cable connector of the present invention, including a body 1 , a tubular conductor 2 axially disposed in the body 1 , and two insulating bushes 3 .

The body 1 is made of conductive material, and an axial channel 10 is formed inside, and its outer peripheral surface is provided with male threads 11 adjacent to two opposite ends, and the male threads 11 can be connected with the front end of the coaxial cable 4. The inner female thread 411 of the connector 41 matches, and a flange portion 12 is provided between the two male threads 11 .

The two insulating bushings 3 are respectively arranged on the two ends of the tubular conductor 2, and a perforation 31 is provided in the center of each insulating bushing 3, and a guide part 32 extending coaxially inward and having a gradually expanding inner diameter is connected to the perforation 31. , to push against one end of the tubular conductor 2 in the guide portion 32, so as to fix and support the tubular conductor 2 on the body 1 when the tubular conductor 2 and the two insulating bushings 3 are inserted into the channel 10 of the body 1 in channel 10.

Please refer to Fig. 3 and Fig. 3A, the two ends of this tubular conductor 2 have three guide strips 21 that are arranged at equal intervals with slits 20 respectively, so that an accommodating groove 22 is formed between the guide strips 21 at each end of the tubular conductor 2 (as shown in Fig. 2). The middle section of each guide piece 21 is slightly recessed into the accommodation groove 22 to form a planar flat bottom 23, and each flat bottom 23 protrudes toward the accommodation groove 22 to form a strip-shaped arched flange twenty four.

Thus, when the two ends of the body 1 are respectively connected to the joints 41 of the coaxial cable 4, the core wire 42 of the coaxial cable 4 can pass through the perforation 31 of the insulating bushing 3 and be inserted into the capacitive sockets at both ends of the tubular conductor 2. placed in the groove 22, so that the tubular conductor 2 elastically clamps and inserts the coaxial cable 4 core wire 42 inserted in the accommodating groove 22 with the arched flanges 24 of the plurality of guide pieces 21, so that the plurality of arched flanges 24 can apply a pressing force to the core wire 42 at equal intervals, so as to form close contact between the plurality of arched flanges 24 and the core wire 42 . At the same time, the core wires of the coaxial cables at both ends are electrically connected via the tubular conductor 2 , and electrical continuity is established between the shielding parts of the coaxial cables at both ends via the body 1 (not shown in the figure).

In the utility model, an arched flange is provided on the flat bottom at the center of each guide sheet, so that when the guide sheets at each end of the tubular conductor clamp the core wire of the coaxial cable, the clamping stress can be concentrated on the arched flange. and evenly distribute the stress generated by the clamping in a larger area to avoid the elastic fatigue of the guide due to long-term compression deformation, and can be carried out on a core wire with a thicker diameter (such as 1mm). After multiple plugging and unplugging operations, when inserting a core wire with a thinner diameter (such as 0.64mm), the guide pieces at each end of the tubular conductor still maintain a stable clamping force. Therefore, when the utility model is connected to coaxial cable core wires of various diameters (such as 0.64mm-1.07mm), the signal transmission loss of frequency 1GHz can be kept within 30dB, and the signal transmission loss of frequency 3GHz can be kept within 25dB .

In summary, according to the content disclosed above, the utility model can indeed achieve the expected purpose of the utility model, providing a reliable electrical connection, maintaining good electrical contact, and stably transmitting high-frequency signals The coaxial cable adapter is extremely valuable in industry, so a utility model patent application is filed according to law.

Claims (3)

1. a coaxial cable adapter, comprise a body, be located at intrinsic tubular shape conductor and be located at body and tubular shape conductor between insulating bushing, the two ends of this tubular shape conductor have respectively the guide card of multi-disc with gap length, to form the storage tank of planting for coaxial cable core wire between this multi-disc guide card in every one end, it is characterized in that:

The region, stage casing of this multi-disc guide card is towards storage tank sunken inside, and the region, stage casing of each guide card is formed with an arcuate flanges towards being convexly equipped with in storage tank, makes tubular shape conductor be plugged on the coaxial cable core wire in storage tank with the tight resilient clamp of arcuate flanges of this multi-disc guide card.

2. coaxial cable adapter as claimed in claim 1, is characterized in that: this arcuate flanges is strip structure.

3. coaxial cable adapter as claimed in claim 1, it is characterized in that: the region, stage casing of each guide card is provided with the flat bottoms of storage tank sunken inside on one day, and this arcuate flanges is located in this flat bottoms.