SMA type reversed polarity straight cable connector

Abstract

The utility model discloses an SMA type reversed polarity straight type cable connector, which relates to the technical field of cable connectors and comprises a shell and a cable, a pin is arranged in the shell, a first medium is wrapped between the shell and the pin, a connector is fixedly connected onto the shell, a pressing pipe is arranged on the outer wall of the connector, and a second medium is arranged on the outer wall of the pressing pipe. A second medium is attached to the inner side of the connector and wraps the outer wall of the contact pin. According to the utility model, the cable joint is arranged in the pressure tube, and the pressure tube, the housing and the cable shield are compressed by the crimping pliers, so that the stable connection between the cable and the contact pin is realized, the durability of the connection is obviously improved, and compared with the traditional connection mode, the cable can be effectively prevented from falling off from the contact pin; therefore, the stability and reliability of signal transmission are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable connectors, in particular to an SMA type reverse polarity straight cable connector. Background Art

[0002] The SMA reverse polarity straight cable connector is a connector widely used in the RF and microwave fields. It has a characteristic impedance of 50Ω and a threaded locking design. It is an ultra-small coaxial cable connector. The SMA reverse polarity straight cable connector is mainly used to provide reliable electrical connections in situations where high-frequency, high-precision RF connections are required. For example, SMA connectors play an important role in laboratories, test equipment, wireless communications, and antenna interfaces. In addition, due to its small size and compact structure, SMA connectors are also very suitable for electronic equipment and systems with limited space.

[0003] However, in existing communication technologies, the SMA reverse polarity straight cable connector is a key component, and its connection performance and stability are crucial to the quality of signal transmission. Existing cable connection methods often have the problem of the cable easily falling off the pins. Even if there are a few methods that can achieve fastening of the cable to the pins, their structure is too complicated, which affects the use of the connector, and thus affects the stability of signal transmission. It may also cause signal interruption or performance degradation, thus failing to meet the high reliability and durability requirements of modern communication systems. Utility Model Content

[0004] In order to solve the problems raised by the above background technology, the present invention proposes an SMA type reverse polarity straight cable connector.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] An SMA type reverse polarity straight cable connector includes a housing and a cable. A pin is provided inside the housing, and a first dielectric is wrapped between the housing and the pin. A connector is fixedly connected to the housing, a pressure tube is provided on the outer wall of the connector, and a second dielectric is fitted on the inner side of the connector, and the second dielectric is wrapped around the outer wall of the pin.

[0007] As a further preferred embodiment of the present technical solution: a fixing nut is fixedly connected to the outer wall of the shell, and a movable nut movably connected to the shell is provided on one side of the fixing nut.

[0008] As a further preferred embodiment of the present technical solution: an inner-toothed elastic washer and an elastic washer are sleeved on the outer side of the shell, and the inner-toothed elastic washer and the elastic washer are arranged between the fixed nut and the movable nut.

[0009] As a further preferred embodiment of the present technical solution: the pressure tube is provided with a socket for inserting a cable.

[0010] As a further preferred embodiment of the present technical solution: an internal tooth structure for limiting and locking is provided on the inner side of the internal tooth elastic washer.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the present invention, the cable connector is placed inside the crimping tube, and the crimping pliers are used to press the crimping tube, the shell and the cable shield together, thereby achieving a stable connection between the cable and the pin and significantly improving the durability of the connection. Compared with the traditional connection method, it can effectively prevent the cable from falling off the pin, thereby ensuring the stability and reliability of signal transmission.

[0013] 2. In the present invention, elastic washers and internal tooth elastic washers are provided to enhance the tightness of the movable nut, effectively preventing the nut from loosening due to vibration or external force during use, and reducing the risk of signal interruption or performance degradation due to loose connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of an SMA type reverse polarity straight cable connector.

[0015] Legend: 1. Housing; 2. Medium No. 1; 3. Pin; 4. Fixing nut; 5. Internally toothed elastic washer; 6. Elastic washer; 7. Movable nut; 8. Connector; 9. Pressure tube; 10. Socket; 11. Cable; 12. Medium No. 2. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1The present application provides an SMA type reverse polarity straight cable connector, including a shell 1 and a cable 11, a pin 3 is provided inside the shell 1, and a No. 1 dielectric 2 is wrapped between the shell 1 and the pin 3, which can prevent the pin 3 from shaking in the inner cavity of the shell 1, a connector 8 is fixedly connected to the shell 1, a pressure tube 9 is provided on the outer wall of the connector 8, a No. 2 dielectric 12 is fitted on the inner side of the connector 8, and the No. 2 dielectric 12 is wrapped on the outer wall of the pin 3, the cable 11 connector is placed inside the pressure tube 9, and the pressure tube 9, the shell 1 and the cable 11 shield are compressed by using a crimping pliers, thereby achieving a stable connection between the cable 11 and the pin 3, and significantly improving the durability of the connection. Compared with the traditional connection method, it can effectively prevent the cable 11 from falling off the pin 3, thereby ensuring the stability and reliability of signal transmission.

[0018] A fixing nut 4 is fixedly connected to the outer wall of the shell 1, and a movable nut 7 movably connected to the shell 1 is provided on one side of the fixing nut 4. An inner-toothed elastic washer 5 and an elastic washer 6 are provided on the outer side of the shell 1, and the inner-toothed elastic washer 5 and the elastic washer 6 are arranged between the fixed nut 4 and the movable nut 7. A socket 10 for inserting a cable 11 is provided on the pressure tube 9, and an inner-toothed elastic washer 5 is provided on the inner side of the inner-toothed elastic washer 5 with an inner-tooth structure for limiting locking. By providing the elastic washer 6 and the inner-toothed elastic washer 5, the tightness of the movable nut 7 is enhanced, which effectively prevents the nut from loosening due to vibration or external force during use, and reduces the risk of signal interruption or performance degradation due to loose connection.

[0019] Working principle: First, connect the cable 11 to the pin 3, which can be connected by soldering. Then, the joint of the cable 11 is set inside the pressure tube 9, and the other part of the pressure tube 9 is occupied by the connector 8 and the pin 3 inside the connector 8. At this time, the pressure tube 9, the shell 1, and the cable 11 shield are compressed by using crimping pliers, and the No. 2 medium 12 wrapped around the outside of the pin 3 can protect the pin 3 from bending and damage during the compression process. At this point, the cable 11 is firmly connected to the pin 3 through the No. 2 medium 12. Compared with the traditional method, the cable 11 is not easy to detach from the pin 3, and the structure is simple and easy to operate. Finally, the setting of the elastic washer 6 can increase the tightness of the tightening of the movable nut 7 to prevent it from loosening. Secondly, the inner side of the inner tooth elastic washer 5 is provided with an inner tooth structure, which makes it more stable and ensures long-term and stable use in the SMA type reverse polarity straight cable connector.

[0020] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An SMA type reverse polarity straight cable connector, comprising a housing (1) and a cable (11), characterized in that: A pin (3) is provided inside the shell (1), and a first medium (2) is wrapped between the shell (1) and the pin (3); a connector (8) is fixedly connected to the shell (1), a pressure tube (9) is provided on the outer wall of the connector (8), and a second medium (12) is fitted on the inner side of the connector (8), and the second medium (12) is wrapped on the outer wall of the pin (3).

2. The SMA type reverse polarity straight cable connector according to claim 1, characterized in that: A fixing nut (4) is fixedly connected to the outer wall of the housing (1), and a movable nut (7) movably connected to the housing (1) is provided on one side of the fixing nut (4).

3. The SMA type reverse polarity straight cable connector according to claim 2, characterized in that: An inner-toothed elastic washer (5) and an elastic washer (6) are sleeved on the outer side of the housing (1), and the inner-toothed elastic washer (5) and the elastic washer (6) are arranged between the fixed nut (4) and the movable nut (7).

4. The SMA type reverse polarity straight cable connector according to claim 1, characterized in that: The pressure tube (9) is provided with a socket (10) for inserting a cable (11).

5. The SMA type reverse polarity straight cable connector according to claim 3, characterized in that: An inner tooth structure for limiting and locking is provided on the inner side of the inner tooth elastic washer (5).

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