A high-power push-in RF coaxial connector

Abstract

This invention discloses a high-power push-in RF coaxial connector, belonging to the field of communication technology. The high-power push-in RF coaxial connector includes a socket and a plug. The socket consists of a socket housing, a socket insulator, and a socket inner conductor. The plug consists of a plug housing, a plug insulator, and a plug inner conductor. By improving the dimensions and technical details of the conductor, insulator, and housing, the connector ensures excellent radial and axial float capability after mating, improving the overall product's radial and axial deviation compatibility and power capacity. Even with large radial and axial deviations between the connector plug and socket, it can still carry a large power. This invention also has advantages such as simple structure and convenient processing, and has broad application prospects.

Description

Technical Field

[0001] This invention belongs to the field of communication technology, and in particular relates to a high-power push-in radio frequency coaxial connector. Background Technology

[0002] Driven by the development of information technology equipment, domestic and international RF connector manufacturers have optimized and improved connectors used in fields such as communications, railway transportation, aerospace, medical instruments, and high-end weaponry. Research has focused on high density, modularity, high reliability, and high power to meet the modular, integrated, and high-power application requirements of system transmission. However, with the advent of the high-speed communication era, the structural and performance requirements for RF connectors have become more stringent, especially in terms of increasingly smaller size, higher power, and higher performance and reliability. Currently, RF connectors generally cannot be simultaneously plugged and unplugged and cannot withstand 200W of high power in a vacuum environment. After connector mating, they lack radial and axial floating capabilities, resulting in poor radial and axial deviation compatibility and power capacity for the entire product. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a high-power push-in RF coaxial connector. Employing a novel structure, it improves the dimensions and technical details of the conductor, insulator, and shell to ensure excellent radial and axial floating capabilities after mating. This enhances the overall product's radial and axial deviation compatibility and power capacity in a vacuum environment. Even with significant radial and axial deviations between the connector plug and socket, it can still handle substantial power. Furthermore, this invention boasts advantages such as simple structure and easy processing, and has broad application prospects.

[0004] The present invention solves the above problems through the following technical means:

[0005] A high-power push-in RF coaxial connector, characterized in that it comprises a socket and a plug, wherein: the socket is composed of a socket housing, a socket insulator, and a socket inner conductor; the socket housing has a slotted structure at its end, and an outer bulge is provided at the end face of the slotted structure; the socket insulator is coaxially mounted in the socket housing; the socket inner conductor is coaxially mounted in the socket insulator via a barbed structure; the end of the socket inner conductor has a socket with a slotted and tapered structure; the plug is composed of a plug housing, a plug insulator, and a plug inner conductor; the end of the plug housing has a stepped socket for mating with the slotted structure; the stepped socket has an annular groove for limiting the outer bulge; the plug insulator is coaxially mounted in the plug housing; the plug inner conductor is coaxially mounted in the plug insulator; and a pin at the end of the plug inner conductor is used to insert into the socket.

[0006] Preferably, the outer diameter of the stepped socket is in the range of 4.76-4.84 mm, the diameter of the annular groove is in the range of 4.34-4.42 mm, and the inner diameter of the stepped socket is in the range of 4.21-4.29 mm.

[0007] Preferably, the diameter of the pins in the inner conductor of the plug is in the range of 0.55-0.62 mm.

[0008] Preferably, the chamfer of the annular groove is in the range of 26-34 degrees.

[0009] Preferably, the outer hole depth of the stepped insertion port is in the range of 0.83-0.95mm, and the depth of the annular groove is in the range of 0.52-0.60mm.

[0010] Preferably, the chamfer range of the stepped insertion is 26-34 degrees.

[0011] Preferably, the total depth of the stepped insertion is in the range of 3.16-3.24 mm.

[0012] Preferably, the pin length of the inner conductor of the plug is in the range of 1.70-1.80 mm.

[0013] Preferably, the chamfer depth of the plug is 0.15-0.17mm, and the end face chamfer of the plug is 26-34 degrees.

[0014] Preferably, the length of the slotted structure is 2.7-2.8 mm, the diameter of the slotted structure is 4.48-4.56 mm, the end face distance of the socket insulator is 0.00-0.10 mm, the end face distance of the inner conductor of the socket is 0.00-0.20 mm, and the width of the outer bulge is 0.44-0.66 mm.

[0015] The high-power push-in RF coaxial connector of the present invention has the following advantages:

[0016] This high-power push-in RF coaxial connector adopts a novel structure. By improving the dimensions and technical details of the conductor, insulator, and shell, it ensures excellent radial and axial floating capabilities after the connector is mated, enhancing the overall product's radial and axial deviation compatibility and power capacity. Even when the connector plug and socket have large radial and axial deviations, it can still carry a large power. Therefore, it can meet the requirements of five, ten, or dozens of connectors per group, simultaneous board-to-board insertion and removal, and withstand high power of 200W in aerospace vacuum environments. This invention also has the advantages of simple structure and convenient processing, and has broad application prospects. Attached Figure Description

[0017] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation of the plug and socket in this invention;

[0020] Figure 3 This is a schematic diagram of the socket structure in this invention;

[0021] Figure 4 This is a schematic diagram of the plug structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the plug dimensions in this invention;

[0023] Figure 6 This is a schematic diagram of the socket dimensions in this invention.

[0024] Among them, 1-socket, 101-socket housing, 102-socket insulator, 103-socket inner conductor, 1011-slotted structure, 1012-outer bulge, 1031-socket hole, 1032-barbed structure, 2-plug, 201-plug housing, 202-plug insulator, 203-plug inner conductor, 2011-stepped socket, 2012-annular groove. Detailed Implementation

[0025] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1 to 4 As shown, this high-power push-in RF coaxial connector includes a socket 1 and a plug 2. Plugs 2 are installed at both ends of the socket 1. The socket 1 consists of a socket housing 101, a socket insulator 102, and a socket inner conductor 103. The plug 2 consists of a plug housing 201, a plug insulator 202, and a plug inner conductor 203. In this design, one end of the plug and socket has a certain radial float and power tolerance, and the insertion and separation forces are moderate. The connector interface has relatively large inner and outer conductor dimensions, achieving higher power capacity. The socket end features a six-slot elastic contact design, making the insertion and extraction forces gentle and facilitating air expulsion, reducing the risk of micro-discharge in a vacuum environment. The connector mating depth can reach approximately 3mm, increasing the reliability of axial float. After mating, the inner diameter of the plug end face is larger than the contact head diameter, and the six-lobed elastic design of the contact head further increases the reliability of radial float.

[0028] In the figure, the end of the socket housing 101 is provided with a slotted structure 1011. The slotted structure 1011 is a six-slot elastic contact design, which makes the insertion and extraction forces of the product gentle and helps the air to be discharged smoothly, reducing the risk of micro-discharge in a vacuum environment. The end face of the slotted structure 1011 is provided with an outer circular bulge 1012. After insertion, the inner diameter of the plug end face is larger than the diameter of the contact head, and the contact head is a six-lobed elastic design, which increases the reliability of radial floating. The socket insulator 102 is coaxially installed in the socket housing 101. The socket inner conductor 103 is coaxially installed in the socket insulator 102 through a barbed structure 1032. The end of the socket inner conductor 103 is provided with a socket hole 1031. The socket hole 1031 is a slotted and tapered structure with rounded corners at the opening to increase the guiding effect and reduce the risk of sharp discharge.

[0029] Figures 2 to 4 In this design, the end of the plug housing 201 has a stepped socket 2011 for mating with the slotted structure 1011. Inside the stepped socket 2011 is an annular groove 2012 for limiting the outer bulge 1012. The plug insulator 202 is coaxially mounted in the plug housing 201, and the plug inner conductor 203 is coaxially mounted in the plug insulator 202. The pin at the end of the plug inner conductor 203 is used to engage with the socket 1031. Specifically, the stepped socket 2011 is designed with rounded corners and a tapered surface structure so that when there is a large radial deviation between the plug connector housing and the socket connector housing during mating, the plug connector housing can smoothly insert into the inner hole of the socket connector housing.

[0030] In this embodiment, both the plug connector and the socket connector are made of beryllium bronze, which undergoes aging treatment after processing to achieve high hardness. The surfaces of all parts are gold-plated, providing high thermal conductivity.

[0031] like Figure 5 and Figure 6As shown, the outer diameter *a* of the stepped socket 2011 ranges from 4.76 to 4.84 mm, the diameter *b* of the annular groove 2012 ranges from 4.34 to 4.42 mm, and the inner diameter *c* of the stepped socket 2011 ranges from 4.21 to 4.29 mm. The pin diameter *d* of the inner conductor 203 of the plug ranges from 0.55 to 0.62 mm. The chamfer *e* of the annular groove 2012 ranges from 26 to 34 degrees. The outer depth *f* of the stepped socket 2011 ranges from 0.83 to 0.95 mm, and the depth *g* of the annular groove 2012 ranges from 0.52 to 0.60 mm. The chamfer *h* of the stepped socket 2011 ranges from 26 to 34 degrees. The total depth *i* of the stepped socket 2011 ranges from 3.16 to 3.24 mm. The pin length *j* of the inner conductor 203 of the plug ranges from 1.70 to 1.80 mm. The chamfer depth k of plug 2 is 0.15-0.17mm, and the end face chamfer l of plug 2 is 26-34 degrees. The length m of the slotted structure 1011 is 2.7-2.8mm, the diameter n of the slotted structure 1011 is 4.48-4.56mm, the end face distance o of the socket insulator 102 is 0.00-0.10mm, the end face distance p of the socket inner conductor 103 is 0.00-0.20mm, and the width q of the outer bulge 1012 is 0.44-0.66mm.

[0032] It should be noted that the outer periphery of the socket housing has a slotted, open structure, which can be tightened inwards during insertion and springs outwards when fully engaged, increasing the contact stability between the housing and the socket housing. The mating end of the socket housing has a large chamfer, allowing the plug housing to smoothly insert into the socket housing's hole even when there is a significant radial deviation between the plug housing and the socket housing. An annular groove is machined on the left side of the plug housing's reference surface to accommodate the outer bulge of the mating end, ensuring a certain meshing force after the plug and socket connectors are mated, thus improving their contact stability. The plug housing extends a certain distance to the left above the socket reference surface, allowing it to compress to the right under external force. Even with a gap between the reference surfaces of the plug and socket connectors, the socket and plug housings maintain good contact, ensuring electrical continuity. These methods achieve compatibility with radial and axial deviations during connector head and socket mating, allowing the connector plug and socket to still mate smoothly even with significant radial deviations. This design is characterized by its simple structure and ease of manufacturing.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-power push-in RF coaxial connector, characterized in that, Includes a socket (1) and a plug (2), wherein: The socket (1) is composed of a socket housing (101), a socket insulator (102) and a socket inner conductor (103). The socket housing (101) has a slotted structure (1011) at its end and an outer bulge (1012) at the end face of the slotted structure (1011). The socket insulator (102) is coaxially installed in the socket housing (101). The socket inner conductor (103) is coaxially installed in the socket insulator (102) through a barbed structure (1032). The socket inner conductor (103) has a socket hole (1031) at its end. The socket hole (1031) is a slotted and closed structure. The plug (2) is composed of a plug housing (201), a plug insulator (202), and a plug inner conductor (203). The end of the plug housing (201) is provided with a stepped socket (2011) for fitting into the slotted structure (1011). The interior of the stepped socket (2011) is provided with an annular groove (2012) for fitting into the outer bulge (1012). The plug insulator (202) is coaxially installed in the plug housing (201), and the plug inner conductor (203) is coaxially installed in the plug insulator (202). The pin at the end of the plug inner conductor (203) is used to fit into the socket (1031). The outer diameter (a) of the stepped socket (2011) ranges from 4.76 to 4.84 mm, the diameter (b) of the annular groove (2012) ranges from 4.34 to 4.42 mm, and the inner diameter (c) of the stepped socket (2011) ranges from 4.21 to 4.29 mm. The pin diameter (d) of the inner conductor (203) of the plug ranges from 0.55 to 0.62 mm; The chamfer (e) of the annular groove (2012) ranges from 26 to 34 degrees; The outer hole depth (f) of the stepped socket (2011) ranges from 0.83 to 0.95 mm, and the depth (g) of the annular groove (2012) ranges from 0.52 to 0.60 mm; The chamfer (h) of the stepped socket (2011) ranges from 26 to 34 degrees; The total depth (i) of the stepped socket (2011) ranges from 3.16 to 3.24 mm; The pin length (j) of the inner conductor (203) of the plug ranges from 1.70 to 1.80 mm; The chamfer depth (k) of the plug (2) is 0.15-0.17mm, and the end face chamfer (l) of the plug (2) is 26-34 degrees; The length (m) of the slotted structure (1011) is 2.7-2.8 mm, the diameter (n) of the slotted structure (1011) is 4.48-4.56 mm, the end face distance (o) of the socket insulator (102) is 0.00-0.10 mm, the end face distance (p) of the socket inner conductor (103) is 0.00-0.20 mm, and the width (q) of the outer bulge (1012) is 0.44-0.66 mm.

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