An SMA connector

Abstract

The utility model discloses a kind of SMA connector including first body, second body and third body, wherein, third body 45 ° is bent to form first part and second part, first body is screw-connected in the first part of third body, second body is screw-connected in the second part of third body, the inside after first body, second body and third body are connected to form medium passage;Medium passage is equipped with center conductor, the first end of center conductor is installed at first body close by through first insulating medium, the second end of center conductor is installed at second body close by through second insulating medium;The utility model can solve the problem that the angle of traditional SMA radio frequency connector joint is fixed, difficult to adjust direction, so it is often connected with half rigid wire in the mode of throwing wire, and half rigid wire is bent, but, manual bending can lead to angle inaccuracy or bending shape irregular, affect signal transmission performance.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency coaxial connectors, specifically to a 45° SMA connector with adjustable male and female heads. Background Technology

[0002] SMA connectors are small threaded coaxial connectors widely used in high-frequency scenarios such as 5G base stations, satellite communications, and radar. They are commonly straight or 90-degree bent. In certain installation environments, such as confined internal spaces and connections between multi-layer circuit boards, existing SMA connectors are difficult to adjust due to their fixed angle. Therefore, a method of connecting semi-rigid wires by bending them is often used. However, manual bending may lead to inaccurate angles or irregular bend shapes, affecting signal transmission performance. Furthermore, multiple bends or excessively small bending radii may damage the internal structure of the semi-rigid wire, increasing the risk of signal attenuation and reflection. Long-term use may also lead to fatigue fracture and reduce system reliability. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an SMA connector.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes a first body, a second body, and a third body. The third body is bent at 45° to form a first part and a second part. The first body is threadedly connected to the first part of the third body, and the second body is threadedly connected to the second part of the third body. A medium channel is formed inside the first body, the second body, and the third body after they are connected. A central conductor is provided in the medium channel. The first end of the central conductor is installed near the first body through a first insulating medium, and the second end of the central conductor is installed near the second body through a second insulating medium.

[0005] In the preferred embodiment of the SMA connector described above, the first body includes a first connector head and a first connecting portion, the first connecting portion having a thread adapted to the first part of the third body, and the first connecting portion being snapped into the first connector head.

[0006] In the preferred embodiment of the SMA connector described above, the first connector has a first annular groove, the outer periphery of the first connector has a second annular groove, and the first and second annular grooves have stop members.

[0007] In the preferred embodiment of the SMA connector described above, the second body includes a second connector head, an outer sleeve, and a second connecting portion. One end of the second connecting portion is threadedly connected to a second part of the third body. The outer sleeve is disposed on the outer periphery of the second connecting portion, and the second connector head is at least partially installed inside the outer sleeve by means of an elastic member.

[0008] In the preferred embodiment of the SMA connector described above, the second connecting portion extends into the outer sleeve at the end away from the third body and has a stepped layer, and the end of the second connector extends into the second connecting portion and abuts against the step.

[0009] In the preferred embodiment of the SMA connector described above, the dielectric channel is filled with a mixture of polytetrafluoroethylene dielectric and air.

[0010] In the preferred embodiment of the SMA connector described above, the first insulating medium and the second insulating medium are made of polytetrafluoroethylene.

[0011] In the preferred embodiment of the SMA connector described above, a flange is provided on the outer periphery of the outer jacket.

[0012] In the preferred embodiment of the SMA connector described above, the elastic element is a spring or elastic steel. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 This diagram shows the connection relationship between the first main body and the central conductor.

[0015] Figure 3 This is a sectional view of the second main body;

[0016] In the figure: First body 1, First connector 11, First annular groove 111, First connecting part 12, Second annular groove 121, Second body 2, Second connector 21, Outer sleeve 22, Second connecting part 23, Third body 3, First part 31, Second part 32, Medium channel 4, Center conductor 5, First insulating medium 6, Stop 7, Elastic element 8, Second insulating medium 9. Detailed Implementation

[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0018] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figures 1 to 3 As shown, the SMA connector of this utility model includes a first body 1, a second body 2, and a third body 3. The third body 3 is bent at a 45° angle to form a first part 31 and a second part 32. The first body 1 is threadedly connected to the first part 31 of the third body 3, and the second body 2 is threadedly connected to the second part 32 of the third body 3. The first body 1, the second body 2, and the third body 3 form a medium channel 4 after being connected. A center conductor 5 is provided in the medium channel 4. The first end of the center conductor 5 is installed near the first body 1 through a first insulating medium 6, and the second end of the center conductor 5 is installed near the second body 2 through a second insulating medium 9.

[0021] See Figure 1The third body 3 is bent at a 45° angle from its middle position, forming a first part 31 and a second part 32. One end of the first body 1 is threaded onto the first part 31 of the third body 3, and one end of the second body 2 is threaded onto the second part 32 of the third body 3. The first body 1, the second body 2, and the third body 3 are hollow structures. When assembled, a medium channel 4 is formed inside the first body 1, the second body 2, and the third body 3. A 45° bent center conductor 5 is installed inside the medium channel 4. The center conductor is coaxial with the medium channel 4, and the first end of the center conductor 5 is installed in the medium channel 4 through a first insulating medium 6. Inside, the second end of the center conductor 5 is installed in the medium channel 4 through the second insulating medium 9. The first end of the center conductor 5 is located opposite to the first body 1, and the second end of the center conductor 5 is located opposite to the second body 2. It can be understood that the first body 1 is a male connector and the second body 2 is a female connector. This application uses the third body 3 as a connector to connect the first body 1 and the second body 2. At the same time, it enables the first body 1 and the second body 2 to achieve a precise 45° connection, which meets the requirements of complex wiring environments, improves the stability and reliability of signal transmission, and solves the shortcomings of traditional SMA connectors in terms of wiring flexibility and angle adjustment.

[0022] In one or more embodiments, the first body 1 includes a first connector 11 and a first connecting part 12. The first connecting part 12 has a thread that is adapted to the first part 31 of the third body 3. The first connecting part 12 is snapped into the first connector 11. The first connector 11 is provided with a first annular groove 111. The outer periphery of the first connecting part 12 is provided with a second annular groove 121. The first annular groove 111 and the second annular groove 121 are provided with a stop member 7.

[0023] See Figure 1 , Figure 2 The first body 1 includes a first connector 11 and a first connecting part 12. The first body 1 is threadedly installed on the first part 31 of the third body 3 through the first connecting part 12. This arrangement can effectively improve the connection strength and connection efficiency between the first body 1 and the third body 3. In addition, by opening a first annular groove 111 on the inner side of the first connector 11 and opening a second annular groove 121 on the outer periphery of the first connecting part 12 corresponding to the first annular groove 111, and installing a stop member 7 in the first annular groove 111 and the second annular groove 121, the assembly of the first body 1 is completed. In other possible embodiments, the first connector 11 and the first connecting part 12 can be threadedly connected, and there is no specific limitation.

[0024] In one or more embodiments, the second body 2 includes a second connector 21, an outer sleeve 22 and a second connecting portion 23. One end of the second connecting portion 23 is threadedly connected to the second part 32 of the third body 3. The outer sleeve 22 is disposed on the outer periphery of the second connecting portion 23. The second connector 21 is at least partially installed inside the outer sleeve 22 by means of an elastic member 8.

[0025] See Figure 1 , Figure 3 The second body 2 includes a second connector 21, an outer sleeve 22, and a second connecting portion 23. The second body 2 is threadedly connected to the second part 32 of the third body 3 via the second connecting portion 23. This arrangement improves the connection strength and efficiency between the second body 2 and the third body 3. It should be noted that the outer periphery of the second connecting portion 23 has an annular protrusion. The outer sleeve 22 abuts against and is fixed to the protrusion of the second connecting portion 23. At least part of the second connecting portion 23 extends into the outer sleeve 22 at the end furthest from the third body 3. The second connector 21 is at least partially installed inside the outer sleeve 22 by means of an elastic member 8. By adding an elastic member 8 to the second body 2, this application allows the second connector 21 to float axially and radially during use, improving the adjustment effect of the connector.

[0026] In one or more embodiments, the second connecting portion 23 extends into the outer sleeve 22 at the end away from the third body 3 and has a stepped layer, and the end of the second connector 21 extends into the second connecting portion 23 and abuts against the step.

[0027] See Figure 1 , Figure 3 The second connector 21 has a relief groove corresponding to the stepped layer on the outer peripheral surface of one end near the second connecting part 23. When the second connector 21 is in a stationary position, the relief groove around the end of the second connector 21 enters the stepped layer of the second connecting part 23. This arrangement can improve the connection strength between the second connector 21 and the second connecting part 23 and improve the accuracy of the second body 2 when it is adjusted along the axial direction.

[0028] In one or more embodiments, the medium channel 4 is filled with polytetrafluoroethylene-mixed air.

[0029] It is understandable that polytetrafluoroethylene (PTFE) has a relative permittivity of approximately 2.02. When mixed with air (which has a relative permittivity of 1), the dielectric properties of the connector can be precisely controlled to ensure transmission efficiency and signal integrity. At the same time, the mixed medium can reduce the overall dielectric constant, thereby reducing delay and loss during signal transmission and meeting the requirements of high-frequency applications such as 5G and satellite communication.

[0030] In one or more embodiments, the first insulating medium 6 and the second insulating medium 9 are made of polytetrafluoroethylene (PTFE). The PTFE material of the first insulating medium 6 and the second insulating medium 9 has a low dielectric constant, which ensures mechanical fixation of the center conductor 5 while reducing the delay of the radio frequency signal during transmission and improving signal propagation efficiency.

[0031] In one or more embodiments, a flange is provided on the outer periphery of the outer jacket 22. See also Figure 3 The flange helps to fix the second body 2 and ensures the stability of the connector when it is fixed.

[0032] In one or more embodiments, the elastic element 8 is a spring or elastic steel.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An SMA connector, characterized in that, The device includes a first body, a second body, and a third body. The third body is bent at a 45° angle to form a first part and a second part. The first body is threadedly connected to the first part of the third body, and the second body is threadedly connected to the second part of the third body. The first body, the second body, and the third body form a medium channel inside the device after they are connected. A central conductor is provided in the medium channel. The first end of the central conductor is installed near the first body through a first insulating medium, and the second end of the central conductor is installed near the second body through a second insulating medium.

2. The SMA connector according to claim 1, characterized in that: The first body includes a first connector and a first connecting part. The first connecting part has a thread that is adapted to the first part of the third body, and the first connecting part is snapped into the first connector.

3. The SMA connector according to claim 2, characterized in that: The first connector has a first annular groove, and the outer periphery of the first connector has a second annular groove. The first annular groove and the second annular groove are provided with stop members.

4. The SMA connector according to claim 1, characterized in that: The second main body includes a second connector, an outer sleeve, and a second connecting portion. One end of the second connecting portion is threadedly connected to the second part of the third main body. The outer sleeve is disposed on the outer periphery of the second connecting portion. The second connector is at least partially installed inside the outer sleeve by means of an elastic element.

5. The SMA connector according to claim 4, characterized in that: The second connecting part extends into the outer casing at the end away from the third body and has a stepped layer. The end of the second connector extends into the second connecting part and abuts against the step.

6. The SMA connector according to claim 1, characterized in that: The medium channel is filled with a mixture of polytetrafluoroethylene (PTFE) and air.

7. The SMA connector according to claim 1, characterized in that: The first insulating medium and the second insulating medium are made of polytetrafluoroethylene.

8. The SMA connector according to claim 4, characterized in that: The outer periphery of the outer jacket is provided with a flange.

9. The SMA connector according to claim 4, characterized in that: The elastic element is a spring or elastic steel.

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