A compact connector

Abstract

The utility model discloses a compact connector, include: shell body, the inner shell body is clamped in the shell body, and the one end of inner shell body extends to have first step flange, and the other end of inner shell body extends to have second step flange, and the first insulator is arranged in the inner shell body, and the one end of first insulator is in abutment with first step flange, and the connector inner conductor is connected on first insulator, and the one end of inner shell body is connected with cable close to second step flange, and the one end of cable is connected with second insulator, and second insulator sets up between cable and first insulator, and the one end of cable is in abutment with second step flange and cable inner conductor passes through second insulator and inserts into connector inner conductor, through above -mentioned mode, the utility model can shorten the axial length of connector.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a compact connector. Background Technology

[0002] K-type connectors possess excellent performance characteristics, such as good electrical properties, strong environmental resistance, and reliable connection. A key feature of K-type connectors is their threaded shielded housing, which effectively shields against external interference. With the development of communication technology, K-type connectors have gradually become one of the most commonly used connectors in the radio frequency (RF) field. They are widely used in wireless communication, satellite communication, radar, and other areas. To meet higher performance requirements, 3.5mm and 2.92mm connectors have also been developed.

[0003] Driven by Moore's Law, the integrated circuit industry is continuously and significantly reducing circuit size, volume, and cost while improving processing speed and performance. Traditional 3.5mm and 2.92mm connectors do not offer a size advantage in certain specific applications. Traditional connectors, such as 3.5mm and 2.92mm connectors, such as... Figure 1 As shown, traditional connectors use a single insulator installed between the inner conductor and the housing, with air gaps at the front and rear ends to support the inner conductor. To achieve the ideal support effect, the radial dimension of this insulator is relatively long, resulting in a relatively long overall connector length, which limits its use in many compact and small devices. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a compact connector that can shorten the axial length of the connector.

[0005] To solve the above-mentioned technical problems, the present invention provides a compact connector, comprising: a housing, an inner housing fitted inside the housing, a first stepped flange extending inward from one end of the inner housing, a second stepped flange extending inward from the other end of the inner housing, a first insulator disposed within the inner housing, one end of the first insulator abutting against the first stepped flange, and a connector inner conductor connected to the first insulator.

[0006] A cable is connected to one end of the inner housing near the second step flange. One end of the cable is connected to a second insulator. The second insulator is located between the cable and the first insulator. One end of the cable abuts against the second step flange, and the inner conductor of the cable passes through the second insulator and is inserted into the inner conductor of the connector.

[0007] Preferably, the inner housing extends to a connecting portion at the end near the cable, through which the cable is fixedly connected to the connector.

[0008] Preferably, a first air gap is formed between the first insulator and the second insulator.

[0009] Preferably, a second air gap is provided at the end of the second insulator near the cable.

[0010] Preferably, the second air gap is conical or cylindrical.

[0011] Preferably, the end of the second insulator near the inner conductor of the connector abuts against the inner conductor of the connector.

[0012] Preferably, a first limiting protrusion and a second limiting protrusion extend outward from the outer edge of the inner shell, and a first limiting groove is formed between the first limiting protrusion and the second limiting protrusion. A limiting retaining ring is provided inside the outer shell, and the limiting retaining ring cooperates with the first limiting groove.

[0013] Preferably, a welding vent hole is provided on the side wall of the inner conductor of the connector.

[0014] The beneficial effects of this utility model are:

[0015] 1. By adopting a support structure with a first insulator and a second insulator and an axially separated design, the axial length of the connector is significantly shortened while ensuring the electrical performance and mechanical reliability of the connector. This solves the problem of excessive axial length caused by radial dimension limitations in traditional single-insulator connectors.

[0016] 2. The first air gap maintains impedance matching, and the conical or cylindrical second air gap at the end of the second insulator enhances the standing wave performance at 40GHz high frequency, while also accommodating cable burrs and improving assembly yield. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of a traditional connector;

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] The components in the attached diagram are labeled as follows:

[0020] 1. Outer shell; 11. Limiting retaining ring;

[0021] 2. Inner shell; 21. First stepped flange; 22. Second stepped flange; 23. Connecting part; 24. First limiting protrusion; 25. Second limiting protrusion;

[0022] 3. First insulator;

[0023] 4. Second insulator; 41. Second air gap;

[0024] 5. Connector inner conductor; 51. Welding vent hole;

[0025] 6. Inner conductor of the cable;

[0026] 7. First air gap;

[0027] 8. Cables. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Unless otherwise specified, physical quantities in formulas should be understood as basic quantities of SI base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0035] Example:

[0036] A compact connector includes: a housing 1, an inner housing 2 fitted inside the housing 1, the inner housing 2 being rotatably connected to the housing 1, a first stepped flange 21 extending inward from one end of the inner housing 2, a second stepped flange 22 extending inward from the other end of the inner housing 2, a first insulator 3 assembled inside the inner housing 2, one end of the first insulator 3 abutting against the first stepped flange 21, a connector inner conductor 5 connected to the first insulator 3, the connector inner conductor 5 being insertable onto the axis of the first insulator 3. A cable 8 is connected to the end of the inner housing 2 near the second stepped flange 22, one end of the cable 8 abutting against the second stepped flange 22 and the cable inner conductor 6 being inserted into the connector inner conductor 5, thereby forming an electrical connection, and a second insulator 4 connected to one end of the cable 8, the second insulator 4 being located in the inner housing 2 and distributed between the cable 8 and the first insulator 3. The first stepped flange 21 provides axial positioning for the first insulator 3 within the inner housing 2, and the second stepped flange 22 provides axial positioning for one end of the cable 8, thereby ensuring the overall assembly relationship between the internal components of the connector when assembly is complete. The first insulator 3 and the second insulator 4 are made of PEI material.

[0037] Two support points are formed by the first insulator 3 and the second insulator 4, which support the inner conductor 5 of the connector and the inner conductor 6 of the cable. The second insulator 4 is connected to one end of the cable 8, thereby reducing the requirement for the axial length of the connector. Compared with the traditional connector that uses a large insulator to support the inner conductor through the support surface, the overall axial length of the connector can be shortened while ensuring the support strength, so that the connector can be used in more compact and small devices.

[0038] The inner housing 2 extends to a connecting part 23 near the end of the cable 8. The cable 8 is welded to the connecting part 23 through its outer conductor to achieve a fixed connection with the inner housing 2, thereby achieving a fixed connection between the cable 8 and the connector.

[0039] A large first air gap 7 is formed between the first insulator 3 and the second insulator 4, which helps to maintain good high-frequency performance, such as impedance characteristics, so that the connector can have good performance at a frequency of 40GHz.

[0040] The second insulator 4 has a second air gap 41 near one end of the cable 8. The second air gap 41 is conical or cylindrical, which facilitates the control of air compensation and enables the connector to have good standing wave performance at a high frequency of 40GHz. Furthermore, if there are slight burrs at the end where the cable 8 connects to the connector, the burrs can be contained by the second air gap 41, thus not affecting the assembly of the cable 8 and the connector and improving the assembly yield.

[0041] The end of the second insulator 4 near the inner conductor 5 of the connector abuts against the inner conductor 5 of the connector. Thus, when the cable 8 is assembled, one end of the cable 8 abuts against the end of the second insulator 4 away from the inner conductor 5 of the connector, and forces the end of the second insulator 4 near the inner conductor 5 of the connector to abut against the end of the inner conductor 5 near the second insulator 4. This causes the inner conductor 5 of the connector to abut against the first insulator 3, and forces the first insulator 3 to abut against the first stepped flange 21 of the inner housing 2.

[0042] In order to limit the position of the inner shell 2 in the outer shell 1, a first limiting protrusion 24 and a second limiting protrusion 25 extend outward from the outer edge of the inner shell 2. A first limiting groove is formed between the first limiting protrusion 24 and the second limiting protrusion 25. A limiting ring 11 is engaged inside the outer shell 1. The limiting ring 11 cooperates with the first limiting groove, thereby limiting the position of the inner shell 2 in the outer shell 1 and realizing the rotation of the inner shell 2 in the outer shell 1.

[0043] After the inner conductor 6 of the cable and the inner conductor 5 of the connector are assembled, they need to be welded together. A welding vent hole 51 is provided on the side wall of the inner conductor 5 of the connector to effectively discharge the gas generated during welding.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A compact connector, characterized in that, include: An outer shell (1) is fitted with an inner shell (2). One end of the inner shell (2) extends inward with a first stepped flange (21), and the other end of the inner shell (2) extends inward with a second stepped flange (22). A first insulator (3) is disposed inside the inner shell (2). One end of the first insulator (3) abuts against the first stepped flange (21). A connector inner conductor (5) is connected to the first insulator (3). The inner housing (2) is connected to a cable (8) at one end near the second step flange (22). One end of the cable (8) is connected to a second insulator (4). The second insulator (4) is disposed between the cable (8) and the first insulator (3). One end of the cable (8) abuts against the second step flange (22), and the inner conductor (6) of the cable passes through the second insulator (4) and is inserted into the inner conductor (5) of the connector.

2. A compact connector according to claim 1, characterized in that: The inner housing (2) has a connecting part (23) extending from one end near the cable (8), and the cable (8) is fixedly connected to the connector through the connecting part (23).

3. A compact connector according to claim 1, characterized in that: A first air gap (7) is formed between the first insulator (3) and the second insulator (4).

4. A compact connector according to claim 1, characterized in that: The second insulator (4) has a second air gap (41) at one end near the cable (8).

5. A compact connector according to claim 4, wherein: The second air gap (41) is conical or cylindrical.

6. A compact connector according to claim 1, characterized in that: The end of the second insulator (4) near the inner conductor (5) of the connector abuts against the inner conductor (5).

7. A compact connector according to claim 1, characterized in that: The inner shell (2) has a first limiting protrusion (24) and a second limiting protrusion (25) extending outward from its outer edge. A first limiting groove is formed between the first limiting protrusion (24) and the second limiting protrusion (25). A limiting ring (11) is provided inside the outer shell (1), and the limiting ring (11) cooperates with the first limiting groove.

8. A compact connector according to claim 1, characterized in that: The inner conductor (5) of the connector has a welding vent hole (51) on its side wall.

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