Radio frequency coaxial needle connector

Abstract

The utility model provides a radio frequency coaxial pinhead connector, which comprises a pin, an insulating shell, a connecting petal, a shell and a threaded sleeve, and is characterized in that the pin is arranged in the insulating shell, the insulating shell is arranged in the shell, and the connecting petal is coated outside the insulating shell and is connected with the shell; the thread sleeve is sleeved outside the shell and is movably connected with the shell; an internal thread is arranged on the inner wall of the thread sleeve; the shell comprises a first mounting section and a fixing section which are coaxially arranged in sequence; the insulating shell comprises a first connecting section, a second mounting section and a second connecting section which are coaxially arranged in sequence; the contact pin comprises a pin head section, a third mounting section and a welding section which are coaxially arranged in sequence; the third mounting section and the welding section are correspondingly inserted into the second mounting section; the end, away from the welding section, of the needle section forms a conical head. A core wire connecting hole is formed in the end, away from the needle head section, of the welding section, a through welding hole is formed in the side wall of the core wire connecting hole, and when a cable is connected, a core wire of the cable is inserted into the core wire connecting hole, and the core wire is connected with the side wall of the core wire connecting hole in a welded mode through the welding hole.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and particularly relates to a radio frequency coaxial pin connector. Background Art

[0002] Radio frequency coaxial connectors are important components widely used in fields such as communication and electronic devices. Traditional radio frequency coaxial connectors usually adopt a direct plug-in connection, that is, the hole end of the hole head connector is plugged into the pin end of the pin head connector, so that the hole head of the pin of the hole head connector and the pin head of the pin of the pin head connector are directly butted, and the connection stability is insufficient, and it is easy to break away under the action of external force; in addition, the pins of the connector and the core wires of the cable are welded at the end. It is necessary to relatively fix the connector and the core wire of the cable before welding, the operation is not easy, and the welding at the end is unreliable and easy to fall off; this may lead to signal leakage or signal loss. Therefore, it is necessary to provide a radio frequency coaxial pin connector to solve or at least partially solve the above problems. Summary of the Utility Model

[0003] An embodiment of the utility model provides a radio frequency coaxial pin connector, which optimizes the structure. The pin is provided with a core wire connection hole and a welding hole to realize reliable welding connection between the pin and the core wire; the outer shell is movably connected to a screw sleeve, and the screw sleeve is provided with internal threads to realize reliable threaded connection of the outer shell.

[0004] A radio frequency coaxial pin connector provided by an embodiment of the utility model includes a pin, an insulating shell, a connecting lobe, an outer shell and a screw sleeve. The pin is arranged in the insulating shell, the insulating shell is arranged in the outer shell, and the connecting lobe is wrapped outside the insulating shell to connect the outer shell; the screw sleeve is sleeved outside the outer shell and is movably connected to the outer shell, and the inner wall of the screw sleeve is provided with internal threads; the outer shell includes a first installation section and a fixed section arranged coaxially in sequence; the insulating shell includes a first connection section, a second installation section and a second connection section arranged coaxially in sequence, and the pin includes a pin head section, a third installation section and a welding section arranged coaxially in sequence; the third installation section and the welding section are correspondingly inserted into the second installation section; a part of the second connection section and the second installation section is inserted and fixed on the inner wall of the first installation section, and the remaining part of the second installation section and the first connection section are located inside the screw sleeve; the end of the pin head section far from the welding section forms a conical head; an assembly groove is arranged on the outer wall of the third installation section; a core wire connection hole is arranged at the end of the welding section far from the pin head section, and a through welding hole is arranged on the side wall of the core wire connection hole. When connecting a cable, the core wire of the cable is inserted into the core wire connection hole, and the core wire is welded and connected to the side wall of the core wire connection hole through the welding hole.

[0005] Preferably, the inner wall of the first mounting section is sequentially provided with a first step, a second step, and a third step from the end away from the fixed end to the end connecting the fixed section. The inner diameters of the first step, the second step, and the third step decrease in sequence. The inner diameter of the second step matches the outer diameter of the second mounting section, and the inner diameter of the third step matches the outer diameter of the second connecting section.

[0006] Preferably, the inner diameter of the first step matches the outer diameter of the end of the connecting lobe connecting the housing. A fixing groove is provided on the outer wall of the end of the second mounting section close to the second connecting section. The diameter of the fixing groove matches the outer diameter of the end of the connecting lobe connecting the housing. When the insulating shell is disposed in the housing, the connecting lobe is arranged between the fixing groove and the first step to fix the insulating shell.

[0007] Preferably, a flange is provided on the outer wall of the end of the connecting lobe away from the housing, and the end of the connecting lobe away from the housing is equally spaced and divided into multiple lobes.

[0008] Preferably, the inner diameter of the second connecting section is the same as the inner diameter of the fixed section. The length of the core wire of the cable is the same as the length of the core wire connection hole. The core wire of the cable is welded to the core wire connection hole. When the pin, the insulating shell, the connecting lobe, and the housing are completed with installation, the second connecting section of the insulating shell and the fixed section of the housing are both covered outside the cable.

[0009] Preferably, the diameter of the cable is slightly smaller than the inner diameter of the fixed section, and the cable is locked by pressing the fixed section to deform it.

[0010] Preferably, an assembly protrusion matching the assembly groove is provided on the inner wall of the second mounting section, and the pin is installed by matching the assembly groove with the assembly protrusion.

[0011] Preferably, a first card slot is provided on the outer wall of the first mounting section, a second card slot is provided on the inner wall of the screw sleeve, a snap ring is provided in the first card slot, and the outer diameter of the snap ring is greater than the outer diameter of the first mounting section and greater than the inner diameter of the screw sleeve and less than the inner diameter of the second card slot. When the snap ring is simultaneously engaged in the first card slot and the second card slot, the screw sleeve is movably connected to the housing.

[0012] Preferably, the material of the pin is beryllium copper, the material of the insulating shell is plastic, and the material of the housing is metal.

[0013] Compared with the prior art, the technical solution of the present utility model has beneficial effects.

[0014] For example, a radio frequency coaxial needle connector includes a pin, an insulating housing, a connecting flap, an outer housing, and a screw sleeve. The pin is disposed in the insulating housing, the insulating housing is disposed in the outer housing, and the connecting flap is wrapped around the insulating housing to connect the outer housing; the screw sleeve is sleeved outside the outer housing and is movably connected to the outer housing, and an internal thread is provided on the inner wall of the screw sleeve; the outer housing includes a first mounting section and a fixing section arranged coaxially in sequence; the insulating housing includes a first connecting section, a second mounting section, and a second connecting section arranged coaxially in sequence, and the pin includes a needle tip section, a third mounting section, and a welding section arranged coaxially in sequence; the third mounting section and the welding section are correspondingly inserted into the second mounting section; a part of the second connecting section and the second mounting section is inserted and fixed on the inner wall of the first mounting section, and the remaining part of the second mounting section and the first connecting section are located inside the screw sleeve; the end of the needle tip section away from the welding section forms a conical head; an assembly groove is provided on the outer wall of the third mounting section; a core wire connection hole is provided at the end of the welding section away from the needle tip section, and a through welding hole is provided on the side wall of the core wire connection hole. When connecting a cable, the core wire of the cable is inserted into the core wire connection hole, and the core wire is welded to the side wall of the core wire connection hole through the welding hole to achieve a reliable welded connection between the pin and the core wire; the outer housing is movably connected to the screw sleeve, and an internal thread is provided on the inner wall of the screw sleeve to achieve a reliable threaded connection of the outer housing; the reasonable deployment and connection of the pin, the insulating housing, the connecting flap, the outer housing, and the screw sleeve make the structure more stable and reliable; there are fewer components, simplifying the time and steps required for assembly, and improving the assembly efficiency and error tolerance rate.

[0015] For another example, a flange is provided on the outer wall of the end of the connecting flap away from the outer housing, and the end of the connecting flap away from the outer housing is equally spaced and divided into multiple petals, which improves the firmness and reliability of the connection when paired with the connector.

[0016] For another example, when the core wire of the cable is welded to the core wire connection hole and the pin, the insulating housing, the gasket, and the outer housing are installed, the third connecting section of the insulating housing and the fixing section of the outer housing are both wrapped around the cable; the diameter of the cable is slightly smaller than the inner diameter of the fixing section, and the cable is locked by pressing the fixing section to deform it; ensuring good fixation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the radio frequency coaxial needle connector in an embodiment of the present invention;

[0018] Figure 2 is a cross-sectional view of the radio frequency coaxial needle connector in an embodiment of the present invention;

[0019] Figure 3 is a cross-sectional view of the outer housing in an embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of the pin in an embodiment of the present invention

[0021] Figure 5It is a cross-sectional view of the pin in the embodiment of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Nut

[0024] 2. Outer shell; 21. First mounting section; 22. Fixed section; 211. First step; 212. Second step; 213. Third step; 214. First card slot

[0025] 3. Insulating shell; 31. First connecting section; 32. Second mounting section; 33. Second connecting section

[0026] 4. Connecting flap; 41. Flange

[0027] 5. Pin; 51. Needle tip section; 511. Tapered head; 52. Third mounting section; 53. Welding section; 54. Assembly groove; 55. Core wire connection hole; 56. Welding hole

[0028] 6. Snap ring Detailed implementation manners

[0029] For the purpose, features and beneficial effects of the present utility model to be more obvious and understandable, the following will combine with the drawings to make a detailed description of the specific implementation manners of the present utility model. It can be understood that the following described specific implementation manners are only used to explain the present utility model, rather than limiting the present utility model. And, in the drawings, the same or similar reference numerals may be used to refer to the same or similar elements in different embodiments, and the descriptions of the same or similar elements in different embodiments and the descriptions of the prior art elements, features, effects, etc. may also be omitted.

[0030] Refer to Figures 1 - 5 , the embodiment of the present utility model provides a radio frequency coaxial needle connector.

[0031] Specifically, the radio frequency coaxial needle connector includes a pin 5, an insulating shell 3, a connecting lobe 4, an outer shell 2, and a screw sleeve 1. The pin 5 is disposed in the insulating shell 3, the insulating shell 3 is disposed in the outer shell 2, and the connecting lobe 4 is wrapped outside the insulating shell 3 to connect the outer shell 2; the screw sleeve 1 is sleeved outside the outer shell 2 and is movably connected to the outer shell 2, and the inner wall of the screw sleeve 1 is provided with an internal thread; the outer shell 2 includes a first mounting section 21 and a fixing section 22 arranged coaxially in sequence; the insulating shell 3 includes a first connecting section 31, a second mounting section 32, and a second connecting section 33 arranged coaxially in sequence, and the pin 5 includes a needle tip section 51, a third mounting section 52, and a welding section 53 arranged coaxially in sequence; the third mounting section 52 and the welding section 53 are correspondingly inserted into the second mounting section 32; a part of the second connecting section 33 and the second mounting section 32 is inserted and fixed on the inner wall of the first mounting section 21, and the remaining part of the second mounting section 32 and the first connecting section 31 are located inside the screw sleeve 1; the end of the needle tip section 51 away from the welding section 53 forms a conical head 511; an assembly groove 54 is provided on the outer wall of the third mounting section 52; a core wire connection hole 55 is provided at the end of the welding section 53 away from the needle tip section 51, and a through welding hole 56 is provided on the side wall of the core wire connection hole 55. When connecting a cable, the core wire of the cable is inserted into the core wire connection hole 55, and the core wire is welded to the side wall of the core wire connection hole 55 through the welding hole 56 to achieve a reliable welded connection between the pin 5 and the core wire; the outer shell 2 is movably connected to the screw sleeve 1, and the inner wall of the screw sleeve 1 is provided with an internal thread to achieve a reliable threaded connection of the outer shell 2; the reasonable deployment and connection of the pin 5, the insulating shell 3, the connecting lobe 4, the outer shell 2, and the screw sleeve 1 make the structure more stable and reliable; there are fewer components, which simplifies the time and steps required for assembly and improves the assembly efficiency and error tolerance rate.

[0032] In some embodiments, the inner wall of the first mounting section 21 is sequentially provided with a first step 211, a second step 212, and a third step 213 from the end away from the fixed end 22 to the end connecting the fixed section 22. The inner diameters of the first step 211, the second step 212, and the third step 213 decrease in sequence. The inner diameter of the second step 212 matches the outer diameter of the second mounting section 32, and the inner diameter of the third step 213 matches the outer diameter of the second connecting section 33.

[0033] In some embodiments, the inner diameter of the first step 211 matches the outer diameter of the end of the connecting lobe 4 connecting the outer shell 2; a fixing groove is provided on the outer wall of the end of the second mounting section 32 close to the second connecting section 33, and the diameter of the fixing groove matches the outer diameter of the end of the connecting lobe 4 connecting the outer shell 2. When the insulating shell 3 is disposed in the outer shell 2, the connecting lobe 4 is disposed between the fixing groove and the first step 211 to fix the insulating shell 3.

[0034] In some embodiments, a flange 41 is provided on the outer wall of the end of the connecting lobe 4 away from the outer shell 2, and the end of the connecting lobe 4 away from the outer shell 2 is equally divided into multiple lobes, which improves the firmness and reliability of the connection when paired with the connector.

[0035] In some embodiments, the inner diameter of the second connecting section 33 is the same as that of the fixing section 22. The length of the core wire of the cable is the same as the length of the core wire connection hole 55. When the core wire of the cable is welded to the core wire connection hole 55, and the pin 5, the insulating shell 3, the connecting lobe 4 and the outer shell 2 are installed, both the second connecting section 33 of the insulating shell 3 and the fixing section 22 of the outer shell 2 are wrapped around the cable; the diameter of the cable is slightly smaller than the inner diameter of the fixing section 22, and the cable is locked by pressing the fixing section 22 to deform it, ensuring good fixation of the cable.

[0036] In some embodiments, the inner wall of the second installation section 32 is provided with an installation protrusion matching the assembly groove 54, and the pin 5 is installed through the matching of the assembly groove 54 and the installation protrusion.

[0037] In some embodiments, the outer wall of the first installation section 21 is provided with a first card slot 214, the inner wall of the screw sleeve 1 is provided with a second card slot, a snap ring 6 is arranged in the first card slot 214, the outer diameter of the snap ring 6 is greater than the outer diameter of the first installation section 21 and at the same time greater than the inner diameter of the screw sleeve 1 and less than the inner diameter of the second card slot. When the snap ring 6 is simultaneously engaged in the first card slot 214 and the second card slot, the screw sleeve 1 is movably connected to the outer shell 2.

[0038] In some embodiments, the material of the pin 5 is beryllium copper, the material of the insulating shell 3 is plastic, and the material of the outer shell 2 is metal.

[0039] In summary, the radio frequency coaxial needle connector of the present utility model includes a pin 5, an insulating shell 3, a connecting lobe 4, an outer shell 2, and a screw sleeve 1. The pin 5 is arranged in the insulating shell 3, the insulating shell 3 is arranged in the outer shell 2, and the connecting lobe 4 is wrapped outside the insulating shell 3 to connect the outer shell 2. The screw sleeve 1 is sleeved outside the outer shell 2 and is movably connected to the outer shell 2. The inner wall of the screw sleeve 1 is provided with internal threads. The outer shell 2 includes a first installation section 21 and a fixed section 22 arranged coaxially in sequence. The insulating shell 3 includes a first connection section 31, a second installation section 32, and a second connection section 33 arranged coaxially in sequence. The pin 5 includes a needle tip section 51, a third installation section 52, and a welding section 53 arranged coaxially in sequence. The third installation section 52 and the welding section 53 are correspondingly inserted into the second installation section 32. A part of the second connection section 33 and the second installation section 32 is inserted and fixed on the inner wall of the first installation section 21, and the remaining part of the second installation section 32 and the first connection section 31 are located inside the screw sleeve 1. The end of the needle tip section 51 away from the welding section 53 forms a conical head 511. The outer wall of the third installation section 52 is provided with an assembly groove 52. The end of the welding section 53 away from the needle tip section 51 is provided with a core wire connection hole 55, and the side wall of the core wire connection hole 55 is provided with a through welding hole 56. When connecting a cable, the core wire of the cable is inserted into the core wire connection hole 55, and the core wire is welded to the side wall of the core wire connection hole 55 through the welding hole 56 to achieve a reliable welded connection between the pin 5 and the core wire. The outer shell 2 is movably connected to the screw sleeve 1, and the inner wall of the screw sleeve 1 is provided with internal threads to achieve a reliable threaded connection of the outer shell 2. The reasonable deployment and connection of the pin 5, the insulating shell 3, the connecting lobe 4, the outer shell 2, and the screw sleeve 1 make the structure more stable and reliable. The number of components is small, which simplifies the time and steps required for assembly, and improves the assembly efficiency and error tolerance rate.

[0040] Furthermore, on the outer wall of the end of the connecting lobe 4 of the present utility model away from the outer shell 2, a flange 41 is provided. The end of the connecting lobe 4 away from the outer shell 2 is equally spaced and divided into multiple lobes, which improves the firmness and reliability of the connection when paired with the connector.

[0041] Furthermore, when the core wire of the cable of the present utility model is welded to the core wire connection hole 55, and when the pin 5, the insulating shell 3, the connecting lobe 4, and the outer shell 2 are installed, the second connection section 33 of the insulating shell 3 and the fixed section 22 of the outer shell 2 are both wrapped outside the cable. The diameter of the cable is slightly smaller than the inner diameter of the fixed section 22, and the cable is locked by pressing the fixed section 22 to deform it, ensuring good fixation of the cable.

[0042] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure of the present utility model, even in the case where a single embodiment is described only with respect to specific features. The feature examples provided in the disclosure of the present utility model are intended for illustration rather than limitation, unless otherwise stated. In specific implementations, according to actual needs and where technically feasible, the technical features of one or more dependent claims can be combined with the technical features of the independent claim, and can be from the technical features of the corresponding independent claim through any appropriate means rather than only through the specific combinations listed in the claims.

[0043] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. A radio frequency coaxial needle connector, characterized in that, It includes a pin, an insulating shell, a connecting lobe, an outer shell and a screw sleeve. The pin is arranged in the insulating shell, the insulating shell is arranged in the outer shell, and the connecting lobe is wrapped outside the insulating shell to connect the outer shell; the screw sleeve is sleeved outside the outer shell and is movably connected to the outer shell, and an internal thread is provided on the inner wall of the screw sleeve; the outer shell includes a first installation section and a fixed section arranged coaxially in sequence; the insulating shell includes a first connection section, a second installation section and a second connection section arranged coaxially in sequence, and the pin includes a needle tip section, a third installation section and a welding section arranged coaxially in sequence; the third installation section and the welding section are correspondingly inserted into the second installation section; a part of the second connection section and the second installation section is inserted and fixed on the inner wall of the first installation section, and the remaining part of the second installation section and the first connection section are located inside the screw sleeve; the end of the needle tip section away from the welding section forms a conical head; an assembly groove is provided on the outer wall of the third installation section; a core wire connection hole is provided at the end of the welding section away from the needle tip section, and a through welding hole is provided on the side wall of the core wire connection hole. When connecting a cable, the core wire of the cable is inserted into the core wire connection hole, and the core wire is welded and connected to the side wall of the core wire connection hole through the welding hole.

2. The RF coaxial needle connector according to claim 1, wherein The inner wall of the first installation section is sequentially provided with a first step, a second step and a third step from the end away from the fixed section to the end connecting the fixed section. The inner diameters of the first step, the second step and the third step decrease in sequence. The inner diameter of the second step matches the outer diameter of the second installation section, and the inner diameter of the third step matches the outer diameter of the second connection section.

3. The RF coaxial needle connector according to claim 2, wherein, The inner diameter of the first step matches the outer diameter of the end of the connecting lobe connecting the outer shell; a fixing groove is provided on the outer wall of the end of the second installation section close to the second connection section, and the diameter of the fixing groove matches the outer diameter of the end of the connecting lobe connecting the outer shell. When the insulating shell is arranged in the outer shell, the connecting lobe is arranged between the fixing groove and the first step to fix the insulating shell.

4. The RF coaxial needle connector according to claim 3, wherein, A flange is provided on the outer wall of the end of the connecting lobe away from the outer shell, and the end of the connecting lobe away from the outer shell is equally divided into multiple lobes.

5. The RF coaxial needle connector according to claim 1, wherein The inner diameter of the second connection section is the same as the inner diameter of the fixed section, the length of the core wire of the cable is the same as the length of the core wire connection hole, and after the core wire of the cable is welded to the core wire connection hole, when the pin, the insulating shell, the connecting lobe and the outer shell are installed, the second connection section of the insulating shell and the fixed section of the outer shell both cover the cable.

6. The RF coaxial needle connector according to claim 5, wherein The diameter of the cable is slightly smaller than the inner diameter of the fixed section, and the cable is locked by pressing the fixed section to deform it.

7. The RF coaxial needle connector according to claim 1, wherein An assembly protrusion matching the assembly groove is provided on the inner wall of the second installation section, and the pin is installed through the matching of the assembly groove and the assembly protrusion.

8. The RF coaxial needle connector according to claim 1, characterized in that, A first clamping groove is provided on the outer wall of the first mounting section, a second clamping groove is provided on the inner wall of the sleeve, a snap ring is provided in the first clamping groove, the outer diameter of the snap ring is larger than the outer diameter of the first mounting section and larger than the inner diameter of the sleeve and smaller than the inner diameter of the second clamping groove, and when the snap ring is simultaneously clamped into the first clamping groove and the second clamping groove, the sleeve is movably connected to the housing.

9. The radio frequency coaxial needle connector according to claim 1, characterized in that, The material of the pin is beryllium copper, the material of the insulating housing is plastic, and the material of the housing is metal.

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