Anti-rotation radio frequency connector

Abstract

The utility model discloses an anti-rotation radio frequency connector, which belongs to the technical field of radio frequency connectors and comprises a fixing part, a mounting part and a welding needle core. The mounting part is positioned on the left side of the fixing part; the left end of the welding needle core is located in the mounting part, and the right end of the welding needle core is located in the fixing part; a supporting piece, a clamping ring and a bidirectional connecting cylinder are arranged in the mounting part; the supporting piece is used for supporting the part, extending into the mounting part, of the welding needle core; the clamping ring is used for fixing the bidirectional connecting cylinder in the mounting part; the bidirectional connecting cylinder comprises a first sleeve and a second sleeve; the first sleeve is located on the left side of the clamping ring and used for being connected with an external cable. The second sleeve is located on the right side of the clamping ring and used for being in sliding connection with the left end of the welding needle core. According to the utility model, when the cable is installed, the welding needle core does not rotate, so that the PCB bonding pad is prevented from being torn off, and the installation reliability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of radio frequency connectors, and in particular relates to an anti-rotation radio frequency connector. Background Art

[0002] RF coaxial connectors are usually considered to be a component installed on cables or instruments, as a component for electrical connection or separation of transmission lines. SMT welding technology is a kind of assembly technology that directly solders RF coaxial connectors to the specified position on the PCB surface without drilling holes on the PCB. It is also a commonly used welding technology for RF coaxial connectors.

[0003] An RF connector generally includes two mating parts. However, during the installation of the RF connector, there is a hidden danger of unstable connection between the two parts. In addition, when the RF connector is assembled and tightened with the cable, the needle core inside the RF connector will rotate, causing the microstrip line on the PCB to be torn off, thereby causing the solder pad of the PCB to be torn off and damaging the PCB.

[0004] The utility model patent with application number CN200720194472.0 discloses a radio frequency connector, which realizes positioning by setting a flange, thereby ensuring that the radio frequency connector will not be pulled off the PCB or become loose during installation, thereby improving the connection reliability. However, the patent has the problem that the microstrip line is torn off due to the rotation of the pin core inside the radio frequency connector, resulting in the pad of the PCB being torn off, which poses an installation hazard. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-rotation RF connector to address the above shortcomings, and to solve the problem that the pin core of the current RF connector rotates during installation, causing the PCB pad to be torn off. To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-rotation radio frequency connector comprises a fixing part, a mounting part and a welding needle core; the mounting part is located on the left side of the fixing part; the left end of the welding needle core is located in the mounting part, and the right end of the welding needle core is located in the fixing part; a support member, a clamping ring and a two-way connecting cylinder are arranged in the mounting part; the support member is used to provide support for the part of the welding needle core extending into the mounting part; the clamping ring is used to fix the two-way connecting cylinder in the mounting part; the two-way connecting cylinder comprises a first sleeve and a second sleeve; the first sleeve is located on the left side of the clamping ring and is used to connect to an external cable; the second sleeve is located on the right side of the clamping ring and is used to be slidably connected to the left end of the welding needle core.

[0007] Further, the mounting portion includes an mounting outer shell and an mounting inner shell; an mounting inner shell is arranged inside the mounting outer shell; a retaining ring is fixed inside the mounting inner shell; the retaining ring is sleeved on the outer side wall of the two-way connecting cylinder and is located between the first sleeve and the second sleeve; the axis of the first sleeve, the axis of the second sleeve, the axis of the welding needle core, the axis of the mounting inner shell and the axis of the mounting outer shell are located on the same straight line.

[0008] Furthermore, the installation shell also has a cable installation space, and the cable installation space is located on the left side of the installation inner shell.

[0009] Furthermore, the first sleeve has a first mounting groove recessed to the right; and the second sleeve has a second mounting groove recessed to the left.

[0010] Furthermore, the first sleeve also includes a plurality of first openings connected to the interior of the first installation groove; the plurality of first openings are located on the side wall of the left end of the first sleeve and are evenly arranged along the circumference of the first sleeve.

[0011] Furthermore, a contact portion is provided at the left end of the welding needle core; the contact portion is used to extend into the second mounting groove and to make sliding contact with the second mounting groove.

[0012] Furthermore, a limiting portion is provided on the welding needle core; the limiting portion is located between the second sleeve and the support member, and the limiting portion is used to contact with the second sleeve to limit the distance that the contact portion of the welding needle core slides to the left, or to contact with the support member to limit the distance that the welding needle core slides to the right.

[0013] Furthermore, the second sleeve also includes a plurality of second openings connected to the interior of the second mounting groove; the plurality of second openings are located on the side wall of the right end of the second sleeve and are evenly arranged along the circumference of the second sleeve.

[0014] Furthermore, the cross section of the right end of the first installation groove and the cross section of the left end of the second installation groove are both conical.

[0015] Furthermore, the support member is sleeved on the outer side wall of the welding needle core and is located on the right side of the limiting portion; the support member is movably connected to the welding needle core.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model utilizes a bidirectional connecting tube to change the electrical connection mode between the welding needle core and the cable, thereby ensuring that the welding needle core will not rotate during the process of installing the cable on the mounting piece, so that the microstrip line will not be pulled, and the pad of the PCB board will not be torn off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] In the accompanying drawings: 1-fixing part, 2-installing part, 3-welding needle core, 4-supporting part, 5-clamping ring, 6-bidirectional connecting cylinder, 21-installing outer shell, 22-installing inner shell, 31-contact part, 32-limiting part, 61-first sleeve, 62-second sleeve, 211-cable installation space, 611-first installation groove, 612-first opening, 611-second installation groove, 622-second opening. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the present invention is not limited to the following embodiments.

[0022] Embodiment 1:

[0023] See attached Figures 1-2. An anti-rotation radio frequency connector comprises a fixing part 1, a mounting part 2 and a welding needle core 3; the mounting part 2 is located on the left side of the fixing part 1; the left end of the welding needle core 3 is located in the mounting part 2, and the right end of the welding needle core 3 is located in the fixing part 1; a support member 4, a clamping ring 5 and a two-way connecting cylinder 6 are arranged in the mounting part 2; the support member 4 is used to provide support for the part of the welding needle core 3 extending into the mounting part 2; the clamping ring 5 is used to fix the two-way connecting cylinder 6 in the mounting part 2; the two-way connecting cylinder 6 comprises a first sleeve 61 and a second sleeve 62; the first sleeve 61 is located on the left side of the clamping ring 5, and is used to connect with an external cable; the second sleeve 62 is located on the right side of the clamping ring 5, and is used to slide with the left end of the welding needle core 3. It can be seen from the above structure that the fixing part 1 is fixedly connected to the PCB board, and the mounting part 2 is located on the left side of the fixing part 1, and is used to install the external cable in the mounting part 2, and then realize a stable electrical connection between the cable and the welding needle core 3. The welding needle core 3 is arranged inside the RF connector, and the left end of the welding needle core 3 is located in the mounting portion 2, and the right end of the welding needle core 3 is located in the fixing portion 1, and the right end of the welding needle core 3 is connected to a microstrip line, and the microstrip line is fixedly connected to the PCB board through a soldering pad. A support member 4, a clamping ring 5 and a bidirectional connection cylinder 6 are arranged inside the mounting portion 2. Among them, the support member 4 is used to provide support for the portion of the welding needle core 3 extending into the mounting portion 2. The clamping ring 5 is used to fix the bidirectional connection cylinder 6 inside the mounting portion 2. The bidirectional connection cylinder 6 is made of a conductive material, and the bidirectional connection cylinder 6 includes a first sleeve 61 and a second sleeve 62. The first sleeve 61 located on the left side of the clamping ring 5 is used to connect to an external cable, and the second sleeve 62 located on the right side of the clamping ring 5 is used to be slidably connected to the left end of the welding needle core 3. When installing the cable in an ordinary RF connector, because the welding needle core 3 will be in direct contact with the cable, the welding needle core 3 will be driven to rotate during the process of rotating the cable, so that the microstrip line on the PCB board will be pulled and broken, and finally the pad of the PCB board will be torn off, damaging the PCB board. In the present utility model, when the cable is connected to the mounting part 2 by rotating installation, the right end of the cable will not directly touch the welding needle core 3, but the cable and the welding needle core 3 are separated by a two-way connecting tube 6, so that the cable and the welding needle core 3 are electrically connected through indirect contact. When the present utility model is used, the fixed part is first welded by SMT welding technology, and then the cable is installed. At this time, the mounting part 2 will be subjected to external forces, including circumferential rotation force and horizontal rightward force. When the right end of the cable contacts the first sleeve 61, the first sleeve 61 will be subjected to contact friction and transfer the contact friction to the second sleeve 62. Then, the welding needle core 3 slidingly connected to the second sleeve 62 will be subjected to horizontal rightward contact friction, but the welding needle core 3 will not rotate.The utility model utilizes the bidirectional connecting tube 6 to change the electrical connection mode between the welding needle core 3 and the cable, ensuring that the welding needle core 3 will not rotate during the installation of the cable on the installation part, so as to protect the microstrip line from being pulled and the soldering pad of the PCB board from being torn off, and the installation reliability is strong.

[0024] Embodiment 2:

[0025] See attached Figures 1-2. An anti-rotation radio frequency connector comprises a fixing part 1, a mounting part 2 and a welding needle core 3; the mounting part 2 is located on the left side of the fixing part 1; the left end of the welding needle core 3 is located in the mounting part 2, and the right end of the welding needle core 3 is located in the fixing part 1; a support member 4, a clamping ring 5 and a two-way connecting cylinder 6 are arranged in the mounting part 2; the support member 4 is used to provide support for the part of the welding needle core 3 extending into the mounting part 2; the clamping ring 5 is used to fix the two-way connecting cylinder 6 in the mounting part 2; the two-way connecting cylinder 6 comprises a first sleeve 61 and a second sleeve 62; the first sleeve 61 is located on the left side of the clamping ring 5, and is used to connect with an external cable; the second sleeve 62 is located on the right side of the clamping ring 5, and is used to slide with the left end of the welding needle core 3. It can be seen from the above structure that the fixing part 1 is fixedly connected to the PCB board, and the mounting part 2 is located on the left side of the fixing part 1, and is used to install the external cable in the mounting part 2, and then realize a stable electrical connection between the cable and the welding needle core 3. The welding needle core 3 is arranged inside the RF connector, and the left end of the welding needle core 3 is located in the mounting portion 2, and the right end of the welding needle core 3 is located in the fixing portion 1, and the right end of the welding needle core 3 is connected to a microstrip line, and the microstrip line is fixedly connected to the PCB board through a soldering pad. A support member 4, a clamping ring 5 and a bidirectional connection cylinder 6 are arranged inside the mounting portion 2. Among them, the support member 4 is used to provide support for the portion of the welding needle core 3 extending into the mounting portion 2. The clamping ring 5 is used to fix the bidirectional connection cylinder 6 inside the mounting portion 2. The bidirectional connection cylinder 6 is made of a conductive material, and the bidirectional connection cylinder 6 includes a first sleeve 61 and a second sleeve 62. The first sleeve 61 located on the left side of the clamping ring 5 is used to connect to an external cable, and the second sleeve 62 located on the right side of the clamping ring 5 is used to be slidably connected to the left end of the welding needle core 3. When installing the cable in an ordinary RF connector, because the welding needle core 3 will be in direct contact with the cable, the welding needle core 3 will be driven to rotate during the process of rotating the cable, so that the microstrip line on the PCB board will be pulled and broken, and finally the pad of the PCB board will be torn off, damaging the PCB board. In the present utility model, when the cable is connected to the mounting part 2 by rotating installation, the right end of the cable will not directly touch the welding needle core 3, but the cable and the welding needle core 3 are separated by a two-way connecting tube 6, so that the cable and the welding needle core 3 are electrically connected through indirect contact. When the present utility model is used, the fixed part is first welded by SMT welding technology, and then the cable is installed. At this time, the mounting part 2 will be subjected to external forces, including circumferential rotation force and horizontal rightward force. When the right end of the cable contacts the first sleeve 61, the first sleeve 61 will be subjected to contact friction and transfer the contact friction to the second sleeve 62. Then, the welding needle core 3 slidingly connected to the second sleeve 62 will be subjected to horizontal rightward contact friction, but the welding needle core 3 will not rotate.The utility model utilizes the bidirectional connecting tube 6 to change the electrical connection mode between the welding needle core 3 and the cable, ensuring that the welding needle core 3 will not rotate during the installation of the cable on the installation part, so as to protect the microstrip line from being pulled and the soldering pad of the PCB board from being torn off, and the installation reliability is strong.

[0026] The mounting portion 2 includes a mounting outer shell 21 and a mounting inner shell 22; the mounting inner shell 22 is provided inside the mounting outer shell 21; a snap ring 5 is fixed inside the mounting inner shell 22; the snap ring 5 is sleeved on the outer side wall of the two-way connecting cylinder 6 and is located between the first sleeve 61 and the second sleeve 62; the axis of the first sleeve 61, the axis of the second sleeve 62, the axis of the welding needle core 3, the axis of the mounting inner shell 22 and the axis of the mounting outer shell 21 are located on the same straight line. As can be seen from the above structure, the mounting portion 2 includes a mounting outer shell 21 and a mounting inner shell 22, the mounting outer shell 21 is also provided with an external thread, and the mounting inner shell 22 is provided inside. A snap ring 5 is fixed inside the mounting inner shell 22, and the snap ring 5 is sleeved on the outer side wall of the two-way connecting cylinder 6, used to fix the position of the two-way connecting cylinder 6 inside the mounting outer shell 21, and the snap ring 5 is located between the first sleeve 61 and the second sleeve 62, used to separate the positions of the first sleeve 61 and the second sleeve 62. In addition, the axis of the first sleeve 61, the axis of the second sleeve 62, the axis of the welding needle core 3, the axis of the mounting inner shell 22, and the axis of the mounting outer shell 21 are located on the same straight line. This arrangement is to ensure that the cable can transfer the contact friction force when it contacts the first sleeve 61 to the second sleeve 62 that is in sliding contact with the welding needle core 3 in the horizontal direction.

[0027] The installation shell 21 further has a cable installation space 211, and the cable installation space 211 is located on the left side of the installation inner shell 22. As can be seen from the above structure, the installation shell 21 further has a cable installation space 211, and the cable installation space 211 is located on the left side of the installation inner shell 22. The cable installation space 211 is reserved for cable installation. During installation, the cable will be partially pressed into the cable installation space 211, and the right end of the cable will contact the first sleeve 61.

[0028] The first sleeve 61 has a first installation groove 611 that is recessed to the right; the second sleeve 62 has a second installation groove 621 that is recessed to the left. As can be seen from the above structure, the first sleeve 61 has a first installation groove 611 that is recessed to the right so as to contact and accommodate the right end of the cable extending to the right, and the second sleeve 62 has a second installation groove 621 that is recessed to the left, and the left end of the welding needle core 3 will extend into the second installation groove 621 and can slide horizontally relative to the second sleeve 62.

[0029] The first sleeve 61 also includes a plurality of first openings 612 connected to the interior of the first installation groove 611; the plurality of first openings 612 are located on the side wall of the left end of the first sleeve 61 and are evenly arranged along the circumference of the first sleeve 61. As can be seen from the above structure, when the right end of the cable extends into the first installation groove 611 of the first sleeve 61, a certain pressure will be exerted on the first sleeve 61. The first sleeve 61 is provided with a plurality of first openings 612, which can enable the left end of the first sleeve 61 to have a certain ability to expand outward, help the right end to be pressed into the interior of the first sleeve 61, and enable the cable to be stably installed on the installation portion 2. The plurality of first openings 612 are evenly arranged along the circumference of the first sleeve 61, which can ensure that the left end of the first sleeve 61 is subjected to uniform force in all directions when under pressure.

[0030] The left end of the welding needle core 3 is provided with a contact portion 31; the contact portion 31 is used to extend into the second mounting groove 621 and slide in contact with the second mounting groove 621. As can be seen from the above structure, the left end of the welding needle core 3 extends into the mounting housing 21 of the mounting portion 2, and the left end of the welding needle core 3 is provided with a contact portion 31, so that the contact portion 31 slides in contact with the second mounting groove 621, which not only enables the cable and the welding needle core 3 to achieve indirect electrical connection through the bidirectional connecting cylinder 6 to ensure connection stability, but also protects the welding needle core 3 from rotating when the cable is rotated for installation, so as to prevent the microstrip line from being pulled, thereby preventing the pad on the PCB from being torn off, and ensuring the reliability of installation.

[0031] The welding needle core 3 is also provided with a limiting portion 32; the limiting portion 32 is located between the second sleeve 62 and the support member 4, and the limiting portion 32 is used to contact with the second sleeve 62 to limit the distance that the contact portion 31 of the welding needle core 3 slides to the left, or to contact with the support member 4 to limit the distance that the welding needle core 3 slides to the right. As can be seen from the above structure, the welding needle core 3 is also provided with a limiting portion 32 located between the second sleeve 62 and the support member 4. When the limiting portion 32 contacts with the second sleeve 62, the welding needle core 3 is limited to continue to move to the left, ensuring that the welding needle core 3 will not fall out of the fixing portion 1 due to excessive movement to the left. When the limiting portion 32 contacts with the support member 4, the welding needle core 3 is limited to continue to move to the right, ensuring that the welding needle core 3 will not fall out of the mounting portion 2 due to excessive movement to the left. Specifically, the limiting portion 32 can be set as a circular boss protruding outward along the circumference of the welding needle core 3, or can be set as a boss symmetrically arranged on the outer wall of the welding needle core 3.

[0032] Embodiment three:

[0033] See attached Figures 1-2. An anti-rotation radio frequency connector comprises a fixing part 1, a mounting part 2 and a welding needle core 3; the mounting part 2 is located on the left side of the fixing part 1; the left end of the welding needle core 3 is located in the mounting part 2, and the right end of the welding needle core 3 is located in the fixing part 1; a support member 4, a clamping ring 5 and a two-way connecting cylinder 6 are arranged in the mounting part 2; the support member 4 is used to provide support for the part of the welding needle core 3 extending into the mounting part 2; the clamping ring 5 is used to fix the two-way connecting cylinder 6 in the mounting part 2; the two-way connecting cylinder 6 comprises a first sleeve 61 and a second sleeve 62; the first sleeve 61 is located on the left side of the clamping ring 5, and is used to connect with an external cable; the second sleeve 62 is located on the right side of the clamping ring 5, and is used to slide with the left end of the welding needle core 3. It can be seen from the above structure that the fixing part 1 is fixedly connected to the PCB board, and the mounting part 2 is located on the left side of the fixing part 1, and is used to install the external cable in the mounting part 2, and then realize a stable electrical connection between the cable and the welding needle core 3. The welding needle core 3 is arranged inside the RF connector, and the left end of the welding needle core 3 is located in the mounting portion 2, and the right end of the welding needle core 3 is located in the fixing portion 1, and the right end of the welding needle core 3 is connected to a microstrip line, and the microstrip line is fixedly connected to the PCB board through a soldering pad. A support member 4, a clamping ring 5 and a bidirectional connection cylinder 6 are arranged inside the mounting portion 2. Among them, the support member 4 is used to provide support for the portion of the welding needle core 3 extending into the mounting portion 2. The clamping ring 5 is used to fix the bidirectional connection cylinder 6 inside the mounting portion 2. The bidirectional connection cylinder 6 is made of a conductive material, and the bidirectional connection cylinder 6 includes a first sleeve 61 and a second sleeve 62. The first sleeve 61 located on the left side of the clamping ring 5 is used to connect to an external cable, and the second sleeve 62 located on the right side of the clamping ring 5 is used to be slidably connected to the left end of the welding needle core 3. When installing the cable in an ordinary RF connector, because the welding needle core 3 will be in direct contact with the cable, the welding needle core 3 will be driven to rotate during the process of rotating the cable, so that the microstrip line on the PCB board will be pulled and broken, and finally the pad of the PCB board will be torn off, damaging the PCB board. In the present utility model, when the cable is connected to the mounting part 2 by rotating installation, the right end of the cable will not directly touch the welding needle core 3, but the cable and the welding needle core 3 are separated by a two-way connecting tube 6, so that the cable and the welding needle core 3 are electrically connected through indirect contact. When the present utility model is used, the fixed part is first welded by SMT welding technology, and then the cable is installed. At this time, the mounting part 2 will be subjected to external forces, including circumferential rotation force and horizontal rightward force. When the right end of the cable contacts the first sleeve 61, the first sleeve 61 will be subjected to contact friction and transfer the contact friction to the second sleeve 62. Then, the welding needle core 3 slidingly connected to the second sleeve 62 will be subjected to horizontal rightward contact friction, but the welding needle core 3 will not rotate.The utility model utilizes the bidirectional connecting tube 6 to change the electrical connection mode between the welding needle core 3 and the cable, ensuring that the welding needle core 3 will not rotate during the installation of the cable on the installation part, so as to protect the microstrip line from being pulled and the soldering pad of the PCB board from being torn off, and the installation reliability is strong.

[0034] The mounting portion 2 includes a mounting outer shell 21 and a mounting inner shell 22; the mounting inner shell 22 is provided inside the mounting outer shell 21; a snap ring 5 is fixed inside the mounting inner shell 22; the snap ring 5 is sleeved on the outer side wall of the two-way connecting cylinder 6 and is located between the first sleeve 61 and the second sleeve 62; the axis of the first sleeve 61, the axis of the second sleeve 62, the axis of the welding needle core 3, the axis of the mounting inner shell 22 and the axis of the mounting outer shell 21 are located on the same straight line. As can be seen from the above structure, the mounting portion 2 includes a mounting outer shell 21 and a mounting inner shell 22, the mounting outer shell 21 is also provided with an external thread, and the mounting inner shell 22 is provided inside. A snap ring 5 is fixed inside the mounting inner shell 22, and the snap ring 5 is sleeved on the outer side wall of the two-way connecting cylinder 6, used to fix the position of the two-way connecting cylinder 6 inside the mounting outer shell 21, and the snap ring 5 is located between the first sleeve 61 and the second sleeve 62, used to separate the positions of the first sleeve 61 and the second sleeve 62. In addition, the axis of the first sleeve 61, the axis of the second sleeve 62, the axis of the welding needle core 3, the axis of the mounting inner shell 22, and the axis of the mounting outer shell 21 are located on the same straight line. This arrangement is to ensure that the cable can transfer the contact friction force when it contacts the first sleeve 61 to the second sleeve 62 that is in sliding contact with the welding needle core 3 in the horizontal direction.

[0035] The installation shell 21 further has a cable installation space 211, and the cable installation space 211 is located on the left side of the installation inner shell 22. As can be seen from the above structure, the installation shell 21 further has a cable installation space 211, and the cable installation space 211 is located on the left side of the installation inner shell 22. The cable installation space 211 is reserved for cable installation. During installation, the cable will be partially pressed into the cable installation space 211, and the right end of the cable will contact the first sleeve 61.

[0036] The first sleeve 61 has a first installation groove 611 that is recessed to the right; the second sleeve 62 has a second installation groove 621 that is recessed to the left. As can be seen from the above structure, the first sleeve 61 has a first installation groove 611 that is recessed to the right so as to contact and accommodate the right end of the cable extending to the right, and the second sleeve 62 has a second installation groove 621 that is recessed to the left, and the left end of the welding needle core 3 will extend into the second installation groove 621 and can slide horizontally relative to the second sleeve 62.

[0037] The first sleeve 61 also includes a plurality of first openings 612 connected to the interior of the first installation groove 611; the plurality of first openings 612 are located on the side wall of the left end of the first sleeve 61 and are evenly arranged along the circumference of the first sleeve 61. As can be seen from the above structure, when the right end of the cable extends into the first installation groove 611 of the first sleeve 61, a certain pressure will be exerted on the first sleeve 61. The first sleeve 61 is provided with a plurality of first openings 612, which can enable the left end of the first sleeve 61 to have a certain ability to expand outward, help the right end to be pressed into the interior of the first sleeve 61, and enable the cable to be stably installed on the installation portion 2. The plurality of first openings 612 are evenly arranged along the circumference of the first sleeve 61, which can ensure that the left end of the first sleeve 61 is subjected to uniform force in all directions when under pressure.

[0038] The left end of the welding needle core 3 is provided with a contact portion 31; the contact portion 31 is used to extend into the second mounting groove 621 and slide in contact with the second mounting groove 621. As can be seen from the above structure, the left end of the welding needle core 3 extends into the mounting housing 21 of the mounting portion 2, and the left end of the welding needle core 3 is provided with a contact portion 31, so that the contact portion 31 slides in contact with the second mounting groove 621, which not only enables the cable and the welding needle core 3 to achieve indirect electrical connection through the bidirectional connecting cylinder 6 to ensure connection stability, but also protects the welding needle core 3 from rotating when the cable is rotated for installation, so as to prevent the microstrip line from being pulled, thereby preventing the pad on the PCB from being torn off, and ensuring the reliability of installation.

[0039] The welding needle core 3 is also provided with a limiting portion 32; the limiting portion 32 is located between the second sleeve 62 and the support member 4, and the limiting portion 32 is used to contact with the second sleeve 62 to limit the distance that the contact portion 31 of the welding needle core 3 slides to the left, or to contact with the support member 4 to limit the distance that the welding needle core 3 slides to the right. As can be seen from the above structure, the welding needle core 3 is also provided with a limiting portion 32 located between the second sleeve 62 and the support member 4. When the limiting portion 32 contacts with the second sleeve 62, the welding needle core 3 is limited to continue to move to the left, ensuring that the welding needle core 3 will not fall out of the fixing portion 1 due to excessive movement to the left. When the limiting portion 32 contacts with the support member 4, the welding needle core 3 is limited to continue to move to the right, ensuring that the welding needle core 3 will not fall out of the mounting portion 2 due to excessive movement to the left. Specifically, the limiting portion 32 can be set as a circular boss protruding outward along the circumference of the welding needle core 3, or can be set as a boss symmetrically arranged on the outer wall of the welding needle core 3.

[0040] The second sleeve 62 also includes a plurality of second openings 622 connected to the inside of the second installation groove 621; the plurality of second openings 622 are located on the side wall of the right end of the second sleeve 62, and are evenly arranged along the circumference of the second sleeve 62. As can be seen from the above structure, since the first sleeve 61 and the second sleeve 62 are respectively arranged on both sides of the clamping ring 5, a plurality of second openings 622 are arranged on the side wall of the right end of the second sleeve 62, and the plurality of second openings 622 are evenly arranged along the circumference of the second sleeve 62, when the clamping ring 5 is installed inside the installation inner shell 22, even if the positions of the first sleeve 61 and the second sleeve 62 are swapped, the second sleeve 62 can still be connected to the cable, and this arrangement facilitates the rapid installation of the two-way connecting cylinder 6 on the installation inner shell 22.

[0041] The cross section of the right end of the first installation groove 611 and the cross section of the left end of the second installation groove 621 are both conical. From the above structure, it can be seen that the cross section of the right end of the first installation groove 611 and the cross section of the left end of the second installation groove 621 are both conical, which are used to match the left end of the welding needle core 3 of different shapes.

[0042] The support member 4 is sleeved on the outer wall of the welding needle core 3 and is located on the right side of the limiting portion 32; the support member 4 is movably connected to the welding needle core 3. As can be seen from the above structure, the support member 4 can make the axis of the welding needle core 3 and the axis of the second sleeve 62 be located on the same straight line, thereby realizing the axial positioning of the welding needle core 3. In addition, the support member 4 is made of resin material. After welding using the SMT welding technology, the support member 4 near the fixed part will expand due to the high temperature, causing the part of the support member 4 that was originally stably connected to the welding needle core 3 to loosen. Therefore, the welding needle core 3 can theoretically rotate, but the support member 4 and the second sleeve 62 are in elastic contact with the limiting portion 32 of the welding needle core 3, so that the welding needle core 3 is only subjected to friction in the horizontal direction and does not rotate.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An anti-rotation radio frequency connector, characterized in that: The invention comprises a fixing part (1), a mounting part (2) and a welding needle core (3); the mounting part (2) is located on the left side of the fixing part (1); the left end of the welding needle core (3) is located in the mounting part (2), and the right end of the welding needle core (3) is located in the fixing part (1); a supporting member (4), a clamping ring (5) and a two-way connecting cylinder (6) are arranged in the mounting part (2); the supporting member (4) is used to provide support for the part of the welding needle core (3) extending into the mounting part (2); the clamping ring (5) is used to fix the two-way connecting cylinder (6) in the mounting part (2); the two-way connecting cylinder (6) comprises a first sleeve (61) and a second sleeve (62); the first sleeve (61) is located on the left side of the clamping ring (5) and is used to be connected to an external cable; the second sleeve (62) is located on the right side of the clamping ring (5) and is used to be slidably connected to the left end of the welding needle core (3).

2. The anti-rotation RF connector according to claim 1, characterized in that: The mounting portion (2) comprises a mounting outer shell (21) and a mounting inner shell (22); the mounting outer shell (21) is provided with a mounting inner shell (22); a snap ring (5) is fixedly provided inside the mounting inner shell (22); the snap ring (5) is sleeved on the outer side wall of the two-way connecting cylinder (6) and is located between the first sleeve (61) and the second sleeve (62); the axis of the first sleeve (61), the axis of the second sleeve (62), the axis of the welding needle core (3), the axis of the mounting inner shell (22) and the axis of the mounting outer shell (21) are located on the same straight line.

3. The anti-rotation radio frequency connector according to claim 2, characterized in that: The installation outer shell (21) also has a cable installation space (211) therein, and the cable installation space (211) is located on the left side of the installation inner shell (22).

4. The anti-rotation RF connector according to claim 2, characterized in that: The first sleeve (61) has a first installation groove (611) recessed toward the right; the second sleeve (62) has a second installation groove (621) recessed toward the left.

5. The anti-rotation radio frequency connector according to claim 4, characterized in that: The first sleeve (61) further comprises a plurality of first openings (612) communicating with the interior of the first mounting groove (611); the plurality of first openings (612) are located on the side wall at the left end of the first sleeve (61) and are evenly arranged along the circumference of the first sleeve (61).

6. The anti-rotation radio frequency connector according to claim 4, characterized in that: A contact portion (31) is provided at the left end of the welding needle core (3); the contact portion (31) is used to extend into the second installation groove (621) and to be in sliding contact with the second installation groove (621).

7. The anti-rotation radio frequency connector according to claim 6, characterized in that: The welding needle core (3) is also provided with a limiting portion (32); the limiting portion (32) is located between the second sleeve (62) and the support member (4), and the limiting portion (32) is used to contact with the second sleeve (62) to limit the distance that the contact portion (31) of the welding needle core (3) slides to the left, or to contact with the support member (4) to limit the distance that the welding needle core (3) slides to the right.

8. The anti-rotation radio frequency connector according to claim 4, characterized in that: The second sleeve (62) further comprises a plurality of second openings (622) communicating with the interior of the second mounting groove (621); the plurality of second openings (622) are located on the side wall at the right end of the second sleeve (62) and are evenly arranged along the circumference of the second sleeve (62).

9. The anti-rotation radio frequency connector according to claim 4, characterized in that: The cross section of the right end of the first mounting groove (611) and the cross section of the left end of the second mounting groove (621) are both conical.

10. The anti-rotation radio frequency connector according to claim 7, characterized in that: The support member (4) is sleeved on the outer side wall of the welding needle core (3) and is located on the right side of the limiting portion (32); the support member (4) is movably connected to the welding needle core (3).

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