JPS5936843Y2 - Coaxial cable connector - Google Patents

Description

[Detailed description of the invention] The present invention relates to the invention of a coaxial cable connector, which enables the coaxial cable connector used for the connection of televisions and other electrical equipment to be manufactured easily and at low cost, and also ensures a favorable shielding effect. This is how it was done.

It is necessary to connect televisions and other electrical equipment with coaxial cables, and various types of coaxial cable connectors have been proposed and put into practical use, but in general, they are made of insulators. Since the outer casing is molded into multiple pieces and is assembled into the interior, a structure or member is required to connect and tighten the multiple outer casings, and a shielding member is required in addition to a connecting or grounding member. Since the structure is complicated and requires a lot of man-hours and costs for manufacturing and assembly, the coaxial cable also has a shielding effect and a grounding effect to prevent noise. Since the shield layer is formed as a braided wire layer on the outside of the core wire (center conductor) and the outside is covered with an insulating protective layer, the coaxial cable itself is expensive, and the braided wire layer and the grounding member are It takes a considerable amount of man-hours to connect the cables, that is, it is necessary to solder the grounding terminal member to the braided wire layer 21, and it takes a lot of time to process the cable terminals. Peel off the outer protective layer, align the braided wires so as not to damage them, and insert the core wire 20.
If the cables are not pulled out to one side and then the respective connection parts are formed, a stable connection by soldering cannot be obtained, which requires training in the cable processing work, and the number of man-hours involved is also considerable. In addition, since the braided wire layer 21 described above is weak against oil and has a texture of fine wires, the braided structure may shift during handling operations, causing wire breakage and noise. However, there are drawbacks such as the fact that it is not always possible to effectively obtain the desired functions.

The present invention was devised after repeated studies to eliminate the disadvantages and shortcomings of the conventional ones as described above, and is a method of inserting a contact body connected to the core wire of a coaxial cable into the center of an insulating board. the insulating board is placed inside the conductor tube, and the terminal member crimped to the conductive polymer molded layer layered on the core wire via the insulating layer is anchored to the conductor tube;
The present invention is characterized in that an insulating tube is attached to the conductor tube, and an insulating sleeve is integrally molded to cover the insulating tube, the tail end side of the conductor section, and the connection portion of the coaxial cable.

That is, to explain the specific embodiment shown in the attached drawings, a contact body 2 connected to a core wire 11 of a coaxial cable 1 is inserted into the center of an insulating board 3 provided in the middle of a conductor tube 4. A conductive polymer molded layer 13 is layered on the outside of the core wire 11 via an insulating layer 12 to form the coaxial cable 1. The terminal member 5 is inserted into the notch 4a formed at the base end, and is formed on one side of the terminal member 5, which is covered with the tail end of the conductor tube 4, as shown in FIG. The conductive polymer molded layer 13 is connected to the conductive polymer molded layer 13 by the crimped portion 5a.

Further, the conductor tube 4 as described above is covered with an insulating tube 6.

An engagement groove 6a is formed on the outside of the insulating cylinder 6,
The tail end side of the insulating tube 6 and the conductor tube 4 and the connection part of the coaxial cable 1 drawn out from the insulating tube 6 and the connecting portion of the coaxial cable 1 drawn out from the insulating tube 6 are integrally coated with an insulating jacket 7 made of rubber or synthetic resin. The coating portion of the insulating sleeve 7 for the coaxial cable 1 is made smaller in diameter, and a groove 8 is appropriately provided in the portion to give the portion appropriate flexibility, and the coating portion for the insulating tube 6 is A locking recess 9 is provided on the outside of the portion to serve as a handhold during insertion/removal operations.

According to the present invention as described above, since the insulating casing 7 is integrally molded, there is no need for the complicated structure and man-hours of assembling a plurality of conventional insulating outer casings. After assembling the parts shown in Figure 2, the insulating jacket 7 can be integrally molded from synthetic resin, etc., so the desired connector can be easily manufactured, and the desired product can be obtained at a low cost. Moreover, a connection part is formed in a state where the conductor tube 4 and the cap-shaped terminal member 5 completely cover each other, and a conductive polymer molded layer 13 is further layered as the coaxial cable 1. Since the conductive polymer molded layer 13 is directly and firmly connected to the crimped portion 5a of the terminal member 5, the connection at this portion is also stable, and in any case, noise and other causes of trouble are effectively avoided. In addition, the overall structure is extremely simple, and there are almost no parts that require manual assembly operations, and it can be manufactured efficiently using a mass production method. In addition, a product with high mechanical and electrical strength and long durability can be obtained, and since the connection port and the cable pulling direction are perpendicular to each other, it can be used on walls and aircraft bodies. It has many functions and effects, such as being able to position cables along the surface and being extremely advantageous in using indoor spaces where televisions and other electrical equipment are installed, and is a highly effective device in terms of practical production. It is.

The conductive polymer molded layer as described above can be formed by mixing conductive material powder such as metallic powder or carbonaceous powder into a polymer material such as rubber, nylon, vinyl, or other synthetic resin. Various methods have been proposed, and the present invention can widely adopt these methods and ensure an appropriate shielding effect.

Further, when the coaxial cable 1 is used as a long cable exceeding 2 m, the extension wire 10 may be embedded in the conductive polymer material layer.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a perspective view of the device according to the present invention, FIG. 2 is a perspective view showing an exploded state of its interior components, and FIG. 3 is a sectional view of the device according to the present invention. It is. In these drawings, 1 is a cable, 2 is a contact body, 3 is an insulating board, 4 is a conductor tube, 5 is a terminal member, 6 is an insulating tube, 7 is an insulating jacket, 11 is a core wire, and 13 is a highly conductive tube. This shows a layer of molecular moldings.

Claims (1)

[Scope of utility model registration request] A contact body connected to the core wire of the coaxial cable is inserted into the center of an insulating board, and the insulating board is set inside the conductor cylinder, and a conductive polymer layered on the core wire via an insulating layer. The terminal member crimped to the molded material layer is attached to the above-mentioned conductor tube, an insulating tube is attached to the conductor tube, and an insulating jacket is attached to the insulating tube, the tail end side of the conductor tube, and the connection part of the coaxial cable. A coaxial cable connector characterized by being integrally coated and molded.