CN201113054Y - Connectors for coaxial wires - Google Patents

Abstract

The utility model relates to a connector of coaxial electric wire belongs to the electromechanical class. It includes a joint shell body, it has opposite first end and second end; a grounding connecting pipe, which is provided with a pipe body and a projecting ring body and is arranged on the periphery of one end part of the pipe body, and the grounding connecting pipe is accommodated in the jointing shell; the gasket is accommodated in the concave ring groove and spans the direction of the convex ring body towards the first end of the joint shell; and the insulating sleeve is sleeved inside the tube body of the grounding connecting tube, and the terminal is accommodated inside the insulating sleeve. Has the advantages that: simple structure, the accuracy control is easy, and compatibility and practicality are strong.

Description

Connectors for coaxial wires

technical field

The utility model relates to electromechanical products, in particular to a connector for coaxial wires.

Background technique

As we all know, as far as the wires of electrical products are concerned, the most traditional one is single-core wire, but it has noise, poor quality, and slow transmission speed; for this reason, a coaxial wire appears to overcome the disadvantages of traditional single-core wire. Disadvantages: As shown in accompanying drawings 1 to 4, the general coaxial wire 10 has a core wire 11, an inner insulating layer 12, an outer metal mesh layer 13 and an insulating skin 14 in sequence from its inner layer to its outer layer;

The connector is provided as a joint between coaxial wires and other coaxial wires or other objects; when the coaxial wire is connected to the connector, except for the core wire 11 of the coaxial wire 10, it must be combined with the terminal contained inside the connector In addition, the outer metal mesh layer 13 of the coaxial wire must also be grounded with the connector;

In the past, the implementation of connectors for coaxial wires, as shown in accompanying drawings 1 to 4, wherein the connector 20 includes a joint shell 21, a ground connection tube 22, a buckle 23, a washer 24 and a Insulating sleeve 25; wherein, the inner wall of joint housing 21 has internal thread 211 and groove 212; grounding connection pipe 22 has a pipe body 221, and at different positions on the outer periphery of the pipe toward its front end, an outer protruding ring is arranged in sequence 222, a recessed ring groove 223 and a shoulder 224; the front end of the ground connection pipe 22 is accommodated in the interior of the joint housing 21, and its outer protruding ring 222 resists the rear end of the joint housing 21; the buckle 23 is buckled in the recessed ring groove 223 of the ground connecting pipe 22, and then buckled and accommodated in the groove 212 of the joint housing 21, and the combination of the ground connection pipe 22 and the joint housing 21 is achieved by the buckle ring 23; the washer 24 It is accommodated inside the joint housing 21 and resists the shoulder 224 of the ground connection pipe 22 to further limit the position of the ground connection pipe 22; the insulating sleeve 25 is accommodated inside the ground connection pipe 22 for the coaxial wire The terminal 15 of 10 is accommodated inside the insulating sleeve 25, and is insulated from the ground connection pipe 22 by the insulating sleeve 25;

As shown in accompanying drawing 3 and accompanying drawing 4, the core wire 11 of coaxial electric wire 10 is welded with a terminal 15 (male terminal or female terminal), when coaxial electric wire 10 and connector 20 are assembled and engaged, the coaxial electric wire 10 The terminal 15 extends into the interior of the insulating sleeve 25 of the connector 20, and then the pipe body 221 of the grounding connection pipe 22 is placed between the inner insulating layer 12 and the outer metal mesh layer 13 of the coaxial wire 10, and then A separately made fixing sleeve 30 is placed on the outer periphery of the outer metal mesh layer 13, and fixed by riveting, so as to achieve the ground connection between the outer metal mesh layer 13 and the ground connection pipe 22 of the connector 20;

However, the above-mentioned common connector 20 has the following obvious shortcomings in the implementation and use: First, the outer circumference of the grounding connection pipe has many different outer diameter step structures such as the outer protruding ring 222, the concave ring groove 223 and the protruding shoulder portion 224, etc. It cannot be molded with a pipe body, but must be processed and produced one by one with a bar with a lathe, its production capacity is limited, its cost is high, and its precision control is not easy; the second is the pipe body 221 of the ground connection pipe 22 of the connector 20 The outer circumference of the inner insulating layer 12 of the coaxial wire 10 must be covered with a moderate size to maintain the concentricity and roundness of the coaxial wire. However, for coaxial wires with different wire diameters, the outer diameter of the inner insulating layer 12 also varies. It will be different. For this, the commonly used connector 20 must prepare a variety of connectors with different pipe body 221 sizes, which increases the storage space and cost of the entire set of connectors 20, that is, the applicability of the commonly used connector 20 is not good. A single size connector is suitable for coaxial wires of different wire diameters and needs to be improved.

Utility model content

The purpose of the utility model is to provide a connector for coaxial wires, which solves the problems of high cost, difficult precision control, poor compatibility and practicability of common connectors.

The technical scheme of the utility model is: the coaxial wire has a core wire, an inner insulating layer, an outer metal mesh layer and an insulating skin in order from its inner layer to the outer layer, and the connector is used to connect the coaxial wire with a terminal, and the terminal Welded to the core wire; wherein, the connector includes a joint shell, which is a cylindrical shell with opposite first and second ends, the inner wall of the first end is provided with internal threads, and the first The inner wall of the end is slightly larger than the inner wall of the second end, and a concave ring groove is provided between the inner wall of the first end and the inner wall of the second end;

A ground connection pipe has a pipe body and a protruding ring body, which is arranged on the outer periphery of one end of the pipe body, the ground connection pipe is accommodated in the joint housing, and the protruding ring body is accommodated in the concave ring groove , a part of the pipe body protrudes from the outside of the joint housing to form a protrusion, and the protrusion is joined to the outer metal mesh layer through a connecting unit;

a washer, accommodated in the groove of the concave ring, and straddling the direction of the protruding ring body towards the first end of the joint housing;

An insulating sleeve is sleeved inside the body of the ground connection pipe, and the terminal is accommodated inside the insulating sleeve;

Wherein, the connection unit is a retainer, the retainer has a protruding tube and an outer protruding ring, which is arranged on the outer circumference of one end of the protruding tube, and the protruding tube is assembled with the protruding part between the outer metal mesh layer and the ground connection tube between, and the outer metal mesh layer and the grounding connection pipe are connected to each other;

The connection unit includes an inner sleeve, which is sleeved on the outer periphery of the inner insulating layer, and the protruding part of the ground connection pipe and the outer metal mesh layer are sequentially covered on the outer circumference of the inner sleeve; a fixed sleeve, which is sleeved and fixed on the The outer metal mesh layer is connected with the outer metal mesh layer and the ground connection pipe.

The utility model has the advantages of simple structure, easy precision control, strong compatibility and practicability.

Description of drawings:

Figure 1 is an exploded schematic diagram of a commonly used connector;

Fig. 2 is a combined three-dimensional cross-sectional schematic diagram of a commonly used connector;

Figure 3 is an exploded schematic diagram of a commonly used connector and coaxial wire;

Figure 4 is a schematic cross-sectional view of a combination of a common connector and a coaxial wire;

Fig. 5 is the exploded schematic view of the utility model;

Fig. 6 is a combined three-dimensional cross-sectional schematic view of the utility model;

Figure 7 is an exploded schematic diagram of an embodiment of the combination relationship between the utility model and coaxial wires;

Fig. 8 is a combined cross-sectional schematic diagram of Fig. 7;

Fig. 9 is an exploded schematic diagram of another embodiment of the combination relationship between the utility model and the coaxial wire;

FIG. 10 is a combined cross-sectional schematic view of FIG. 9 .

Detailed ways:

As shown in accompanying drawing 5 and accompanying drawing 6, the utility model connector 40 comprises a joint housing 41, a ground connection pipe 42, a gasket 43 and an insulating sleeve 44, wherein the joint housing 41 is a cylindrical The housing has opposite first end 411 and second end 412, the inner wall of the first end is provided with internal thread 413, and the inner wall of the first end is slightly larger than the inner wall of the second end 412, and at the first A concave ring groove 414 is provided between the inner wall of the end 411 and the inner wall of the second end 412;

The ground connection pipe 42 has a pipe body 421 and a protruding ring body 422, which are formed on the outer periphery of one end of the pipe body 421. The ground connection pipe 42 is in the form of a pipe body, and can be mass-produced using molds, with low cost and Precision control is easy, time-saving and material-saving; the ground connection pipe 42 is accommodated inside the joint housing 41 from the direction of the first end 411 of the joint housing 41, and the protruding ring body 422 is accommodated inside the concave ring groove 414; A part of the tube body 421 of the connecting pipe 42 protrudes from the outside of the joint housing 41 to form a protruding part 423, which is joined with the outer metal mesh layer 13 of the coaxial wire 10 through a connecting unit 50;

The gasket 43 is also accommodated inside the concave ring groove 414 of the joint housing 41 from the direction of the first end 411 of the joint housing 41 , and straddles the protruding ring body 422 of the ground connection pipe 42 toward the first end 411 of the joint housing 41 The direction of the gasket 43 has a slightly larger outer diameter than the protruding ring body 422, which is used to limit the position of the ground connection pipe 42 inside the joint housing 41, and firmly achieve the combination between the ground connection pipe 42 and the joint housing 41;

The insulating sleeve 44 is sleeved inside the body 421 of the ground connection pipe 42 , and is used for accommodating the terminals of the coaxial wires and insulating the ground connection pipe 42 .

As shown in accompanying drawing 7 and accompanying drawing 8, the core wire 11 of coaxial electric wire 10 is welded with a terminal 15 (male terminal or female terminal), and above-mentioned connection unit 50 comprises an inner sleeve 51 and a fixed sleeve 52, in When the coaxial wire 10 is assembled and joined with the connector 40, the inner sleeve 51 is placed on the outer circumference of the inner insulating layer 12 of the coaxial wire 10, and the outer circumference of the inner sleeve 51 covers the protruding part of the ground connection pipe 42 in sequence. 413 and the outer metal mesh layer 13; at the same time, the terminal 15 of the coaxial wire 10 is inserted into the interior of the insulating sleeve 44 accommodated in the connector 40; And give riveting, and thereby reach to metal net layer 13 and grounding connection pipe 42 mutual engagement and grounding; Inner sleeve 51 has two kinds of functions here, one is to strengthen the intensity of coaxial wire 10 inner insulating layer 12 , the other is to fill the gap between the inner insulating layer 12 and the protruding part 423 of the ground connection pipe 42, so as to maintain the good concentric circle and roundness of the coaxial wire;

When the wire diameters of the coaxial wires 10 are different, it is only necessary to change the size of the inner sleeve 51 without replacing the whole set of connectors 40, that is, the same connector 40 can be used for coaxial wires with different wire diameters. , to reduce the storage space and cost of the entire set of connectors.

As shown in accompanying drawing 9 and accompanying drawing 10, connecting unit 50 is a retainer 53, and it has a protruding tube 531 and an outer protruding ring 532, and it is located at the periphery of an end of this protruding tube 531; The convex tube 531 is assembled between the outer metal mesh layer 13 of the coaxial wire 10 and the protruding part 423 of the ground connection pipe 42, that is, the convex tube 531 is welded to the outer periphery of the outer metal mesh layer 13, and then tightly fitted on the protruding part 423, so as to achieve the mutual engagement and grounding of the outer metal mesh layer 13 and the ground connection pipe 42; the connection unit 50 of this embodiment, the retainer 53 does not need to be riveted, and the coaxial wire can be obtained more Precise concentric circles and true roundness;

Likewise, when the wire diameters of the coaxial wires 10 are different, only the size of the holder 53 needs to be changed without replacing the entire set of connectors 40 , which reduces the storage space and cost of the entire set of connectors.

Claims (3)

1. A connector for coaxial wires, characterized in that: the connector includes a joint housing, which is a cylindrical housing, which has a first end and a second end opposite to each other, and the inner wall of the first end is provided with There are internal threads, and the inner wall of the first end is slightly larger than the inner wall of the second end, and a concave ring groove is provided between the inner wall of the first end and the inner wall of the second end; A ground connection pipe has a pipe body and a protruding ring body, which is arranged on the outer periphery of one end of the pipe body, the ground connection pipe is accommodated in the joint housing, and the protruding ring body is accommodated in the concave ring groove , a part of the pipe body protrudes from the outside of the joint housing to form a protrusion, and the protrusion is joined to the outer metal mesh layer through a connecting unit; a washer, accommodated in the groove of the concave ring, and straddling the direction of the protruding ring body towards the first end of the joint housing; An insulating sleeve is sleeved inside the body of the ground connection pipe, and the terminal is accommodated inside the insulating sleeve. 2. The connector for coaxial wires according to claim 1, characterized in that: said connecting unit is a retainer, the retainer has a protruding tube and a protruding ring, which is located at one end of the protruding tube The protruding tube is assembled between the outer metal mesh layer and the protruding part of the ground connection pipe, and is joined with the outer metal mesh layer and the ground connection pipe. 3. The connector for coaxial wires according to claim 1, characterized in that: said connection unit includes an inner sleeve, which is sleeved on the outer periphery of the inner insulating layer, and the outer periphery of the inner sleeve is sequentially Covering the protruding part of the ground connection pipe and the outer metal mesh layer; a fixed sleeve, sleeved and fixed on the outer metal mesh layer, and jointed with the outer metal mesh layer and the ground connection pipe.

Images