Radio frequency connector for stable connection and signal transmission

Abstract

The utility model discloses a radio frequency connector for stable connection and signal transmission, which comprises an SMA male head mechanism and an SMA female head mechanism, the SMA male head mechanism comprises a shell, a mounting groove is arranged at the central position in the left side surface of the shell, a main body is arranged at the central position in the shell, an insulator is arranged at the central position in the main body, and the insulator is arranged at the central position in the shell. The outer surface of the insulator is provided with a male head outer conductor, and the leftmost side of the outer surface of the male head outer conductor is provided with a protruding ring cutting groove. Through the arrangement of the protruding ring cutting groove, the protruding ring cutting groove is formed in the leftmost side of the outer surface of the male head outer conductor, so that the male head outer conductor has elasticity, and when the SMA male head mechanism and the SMA female head mechanism are oppositely locked, the male head outer conductor can be inserted into the SMA female head mechanism and can be in close contact with the female head outer conductor; signal jump caused by poor contact is prevented, and the stability of signal transmission of the SMA connector is improved.

Description

Technical Field

[0001] This utility model relates to the field of SMA connector technology, specifically to a radio frequency connector for stable connection and signal transmission. Background Technology

[0002] SMA connectors are widely used small threaded coaxial connectors. Their compact size makes them suitable for space-constrained applications, facilitating installation and wiring in compact devices. The threaded connection ensures a secure connection with good mechanical strength and durability, allowing them to withstand a certain degree of vibration, shock, and environmental changes. SMA connectors exhibit excellent electrical performance across the DC to microwave frequency range, with low insertion loss, return loss, and voltage standing wave ratio (VSWR), ensuring high-quality signal transmission. With their small size, superior performance, reliable connection, and wide range of applications, SMA connectors have become an indispensable component in the radio frequency (RF) field. As communication technology continues to develop, SMA connectors will continue to play a vital role and drive the advancement of RF technology.

[0003] SMA connectors generally consist of two structures: an SMA male connector and an SMA female connector. However, since the outer conductors of the SMA male and SMA female connectors are currently loosely fitted with a gap, the outer conductors of the two connectors may not make contact when they are installed, resulting in poor signal transmission, signal jumps, and affecting the stability of the signal transmission of the SMA connector. Therefore, a radio frequency connector with stable connection and signal transmission is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a radio frequency connector that provides stable connection and signal transmission, which can solve the problem of signal abrupt changes caused by the inability of the outer conductor of the traditional SMA connector to make contact.

[0005] To achieve the above objectives, a radio frequency connector for stable connection and signal transmission is provided, including an SMA male connector mechanism and an SMA female connector mechanism. The SMA male connector mechanism includes a housing, a mounting groove is provided in the center of the left side of the housing, a main body is installed in the center of the housing, and an insulator is installed in the center of the main body.

[0006] A male outer conductor is mounted on the outer surface of the insulator, and a protruding annular groove is mounted on the leftmost side of the outer surface of the male outer conductor.

[0007] According to the radio frequency connector for stable connection and signal transmission, the rightmost end of the male outer conductor is mounted and connected to the main body, and the male outer conductor and the protruding annular groove are both located inside the mounting groove.

[0008] According to the radio frequency connector for stable connection and signal transmission, a silicone ring and a retaining ring are installed in the cavity between the housing and the body. The silicone ring is located on the far left of the cavity between the housing and the body, and the retaining ring is located on the right side of the silicone ring and is tightly attached to the silicone ring.

[0009] According to the radio frequency connector for stable connection and signal transmission, a connecting shaft is installed between the housing and the body, and the connecting shaft is located at the rightmost end between the housing and the body.

[0010] According to the radio frequency connector for stable connection and signal transmission, a male inner conductor is installed at the central position inside the insulator, and the head of the male inner conductor is located inside the mounting groove.

[0011] According to the radio frequency connector for stable connection and signal transmission, the inner surface of the housing is provided with an internal thread groove, which is located inside the mounting groove.

[0012] According to the radio frequency connector for stable connection and signal transmission, the SMA female connector mechanism includes a female outer conductor, and the outer surface of the female outer conductor is provided with an external threaded groove for mounting.

[0013] According to the radio frequency connector for stable connection and signal transmission, the mounting external thread groove is located on the far right of the female outer conductor, and the female inner conductor is located at the center of the female outer conductor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This RF connector for stable connection and signal transmission features a protruding annular groove. By installing the protruding annular groove on the leftmost side of the outer surface of the male connector's outer conductor, the male connector's outer conductor becomes elastic. When the SMA male connector mechanism and the SMA female connector mechanism are locked together, the male connector's outer conductor can be inserted into the SMA female connector mechanism while also making tight contact with the female connector's outer conductor. This prevents signal jumps caused by poor contact and improves the stability of the SMA connector's signal transmission.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a plan view of the SMA male connector mechanism of a radio frequency connector for stable connection and signal transmission according to the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the SMA male connector mechanism of a radio frequency connector for stable connection and signal transmission according to this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the SMA male and SMA female connectors of the radio frequency connector for stable connection and signal transmission according to this utility model during installation.

[0021] Figure 4 For the present utility model Figure 3 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. SMA male connector mechanism; 2. SMA female connector mechanism; 3. Housing; 301. Mounting slot; 3001. Mounting internal thread slot; 4. Main body; 5. Insulator; 6. Male connector outer conductor; 7. Protruding annular groove; 8. Silicone ring; 9. Retaining ring; 10. Connecting shaft; 11. Male connector inner conductor; 12. Female connector outer conductor; 1201. Mounting external thread slot; 13. Female connector inner conductor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a radio frequency connector for stable connection and signal transmission, including an SMA male connector 1 and an SMA female connector 2. The SMA male connector 1 includes a housing 3. A mounting groove 301 is provided in the center of the left side of the housing 3. A main body 4 is installed in the center of the inside of the housing 3. An insulator 5 is installed in the center of the inside of the main body 4.

[0025] A male outer conductor 6 is mounted on the outer surface of the insulator 5. A protruding annular groove 7 is mounted on the leftmost side of the outer surface of the male outer conductor 6. By setting the protruding annular groove 7, the male outer conductor 6 becomes elastic. When the SMA male connector mechanism 1 and the SMA female connector mechanism 2 are locked together, the male outer conductor 6 can be inserted into the SMA female connector mechanism 2 and can also be in close contact with the female outer conductor 12, preventing signal jumps due to poor contact and improving the stability of SMA connector signal transmission.

[0026] The rightmost end of the male outer conductor 6 is connected to the main body 4. The male outer conductor 6 and the protruding annular groove 7 are both located inside the mounting groove 301. A silicone ring 8 and a retaining ring 9 are installed in the cavity between the outer shell 3 and the main body 4. The silicone ring 8 is located on the leftmost side of the cavity between the outer shell 3 and the main body 4, and the retaining ring 9 is located on the right side of the silicone ring 8 and is tightly attached to the silicone ring 8. By setting the silicone ring 8, the pressure on the SMA male connector mechanism 1 during the installation of the SMA connector is reduced. Due to the elasticity of the silicone ring 8 itself, the silicone ring 8 deforms under pressure during installation, which changes the internal structure of the SMA male connector mechanism 1, protects the SMA male connector mechanism 1 from damage, and improves the service life of the SMA connector.

[0027] A connecting shaft 10 is installed between the outer shell 3 and the main body 4. The connecting shaft 10 is located at the rightmost end between the outer shell 3 and the main body 4. A male inner conductor 11 is installed in the center of the interior of the insulator 5. The head of the male inner conductor 11 is located inside the mounting groove 301.

[0028] The inner surface of the outer shell 3 is provided with an internal thread groove 3001, which is located inside the mounting groove 301. The SMA female connector mechanism 2 includes a female outer conductor 12, and the outer surface of the female outer conductor 12 is provided with an external thread groove 1201, which is located on the far right side of the female outer conductor 12. The female inner conductor 13 is located in the center of the inner part of the female outer conductor 12. By setting the internal thread groove 3001 and the external thread groove 1201, the installation between the male and female parts of the SMA connector is realized. The internal thread groove 3001 and the external thread groove 1201 are threadedly connected, so that when the SMA female connector mechanism 2 is rotated, the head of the SMA female connector mechanism 2 slowly enters the interior of the mounting groove 301 until the head of the SMA female connector mechanism 2 is completely entered into the interior of the SMA male connector mechanism 1. At this time, the installation of the SMA connector is completed.

[0029] Working principle: When installing the male and female connectors of the SMA connector, first align the head of the SMA female connector mechanism 2 with the opening of the mounting slot 301, then insert the head of the SMA female connector mechanism 2 into the mounting slot 301. At the same time, rotate the SMA female connector mechanism 2, and the head of the SMA female connector mechanism 2 slowly enters the SMA male connector mechanism 1 until it can no longer be rotated. Stop rotating. At this time, the surfaces of the male outer conductor 6 and the female outer conductor 12 are in contact with each other, and the head of the male inner conductor 11 is inserted into the slot at the tail of the female inner conductor 13. This realizes the internal signal connection and transmission of the SMA connector, and completes the installation between the male and female connectors of the SMA connector.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A radio frequency connector for stable connection and signal transmission, comprising an SMA male connector (1) and an SMA female connector (2), characterized in that, The SMA male connector (1) includes a housing (3), a mounting groove (301) is provided in the center of the left side of the housing (3), a main body (4) is installed in the center of the housing (3), and an insulator (5) is installed in the center of the main body (4). The outer surface of the insulator (5) is fitted with a male outer conductor (6), and the leftmost side of the outer surface of the male outer conductor (6) is fitted with a protruding annular groove (7).

2. The RF connector for stable connection and signal transmission as described in claim 1, characterized in that: The rightmost end of the male outer conductor (6) is installed and connected to the main body (4), and the male outer conductor (6) and the protruding annular groove (7) are both located inside the mounting groove (301).

3. The RF connector for stable connection and signal transmission as described in claim 1, characterized in that: A silicone ring (8) and a retaining ring (9) are installed in the cavity between the outer shell (3) and the main body (4). The silicone ring (8) is located on the leftmost side of the cavity between the outer shell (3) and the main body (4), and the retaining ring (9) is located on the right side of the silicone ring (8) and is close to the silicone ring (8).

4. The RF connector for stable connection and signal transmission as described in claim 1, characterized in that: A connecting shaft (10) is installed between the outer shell (3) and the main body (4), and the connecting shaft (10) is located at the rightmost end between the outer shell (3) and the main body (4).

5. The RF connector for stable connection and signal transmission as described in claim 1, characterized in that: A male inner conductor (11) is installed in the center of the interior of the insulator (5), and the head of the male inner conductor (11) is located inside the mounting groove (301).

6. The RF connector for stable connection and signal transmission as described in claim 1, characterized in that: The inner surface of the outer shell (3) is provided with an internal thread groove (3001), which is located inside the mounting groove (301).

7. The RF connector for stable connection and signal transmission as described in claim 1, characterized in that: The SMA female head mechanism (2) includes a female head outer conductor (12), and the outer surface of the female head outer conductor (12) is provided with an external thread groove (1201).

8. The RF connector for stable connection and signal transmission as described in claim 7, characterized in that: The mounting external thread groove (1201) is located on the far right of the female outer conductor (12), and the female inner conductor (13) is located in the center of the female outer conductor (12).

Images