Coaxial Connectors

Abstract

The present invention relates to a coaxial connector, which is improved on the basis of the existing first outer conductor, second outer conductor, inner conductor and insulating support with a center hole, that is, two slots are axially spaced on the inner conductor, there are two insulating supports, which are respectively clamped in the corresponding slots of the inner conductor through the center hole, and a support piece is also sleeved on the inner conductor between the two insulating supports, whose two ends are respectively against the insulating supports on the corresponding sides, and the support piece and the two insulating supports form an assembly, and the two ends of the assembly are respectively against the inner step surface of the first outer conductor and the end face of one end of the second outer conductor. With this structure, the inner conductor of the present invention is not easy to be eccentric, the positioning is reliable, and it has the advantages of low dielectric constant, stable performance, low processing cost, high assembly efficiency and good coaxiality, so that the present invention has stronger market competitiveness.

Description

Technical Field

[0001] The invention relates to a coaxial connector, in particular to a coaxial connector using air as an insulating medium. Background Art

[0002] With the rapid development of the communication industry, the requirements for electronic devices are getting higher and higher. Among them, the coaxial connector, as a separable component for electrical connection of the transmission system, is also developing in the direction of miniaturization, high frequency, and multi-function, that is, it is constantly being updated. In order to have a more ideal matching transmission characteristic in a wider working frequency band, air is introduced as an insulating medium in the existing coaxial connector, and in order to position and fix the inner conductor in the coaxial connector, a thinner insulator is used to support the inner conductor. For example, the coaxial connector disclosed in the document with the Chinese patent authorization announcement number CN103326206B includes an outer conductor, an inner conductor and an insulating support. The outer conductor is composed of a shell and a sleeve. There is a card slot for fixing the insulating support on the sleeve. The insulating support is composed of three thin-sheet insulators, which are fixed in the card slot of the sleeve and support the inner conductor to be placed in the center of the outer conductor. The coaxial connector can simultaneously ensure good microwave transmission performance and mechanical support strength, so that it has excellent electrical characteristics and high mechanical reliability, and can efficiently and stably transmit microwave signals with a frequency of up to 65GHz.

[0003] In addition, there is a coaxial connector disclosed in a document with Chinese patent authorization announcement number CN102931548B, which includes a left outer conductor, a right outer conductor, an inner conductor, an upper semi-insulating support, a lower semi-insulating support and a clamping ring; a small-diameter cavity and a large-diameter cavity that are coaxial and connected to each other are provided inside the left outer conductor; the right outer conductor is tubular and is arranged in the large-diameter cavity of the left outer conductor; the inner conductor, the upper semi-insulating support, the lower semi-insulating support and the clamping ring are all arranged inside the left outer conductor; the inner conductor is a left-right symmetrical structure, including a left outer cylinder, a left compensation step cylinder, an insulating support slot cylinder, a right compensation step cylinder and a right outer cylinder connected in sequence, the upper semi-insulating support and the lower semi-insulating support are together embraced on the insulating support slot cylinder, and the upper semi-insulating support, the lower semi-insulating support and the insulating support slot cylinder are clamped by the clamping ring, the clamping ring is arranged in the large-diameter cavity, and is clamped by the left outer conductor and the right outer conductor, and the outer wall of the clamping ring is connected to the left outer conductor with a tight fit. The coaxial connector can reduce the discontinuity caused by adding insulation compensation, ensuring that the product has good voltage standing wave ratio and operating frequency characteristics.

[0004] However, after carefully analyzing the structures in the above documents, it is found that the former document uses three thin-sheet insulators to support the inner conductor. Although it can solve the eccentricity problem of the inner conductor, it is difficult to assemble. This is because: when the three thin-sheet insulators are positioned in the corresponding grooves of the inner conductor, and then inserted into the shell (the upper and lower sleeves are tightly fitted in the inner cavity of the shell) after being held tightly by the upper and lower sleeves, the upper and lower sleeves are split structures, and they are easily separated by external forces. That is, during the assembly process, the inner conductor, the three thin-sheet insulators and the sleeve cannot be easily inserted as a whole, thereby affecting the assembly efficiency and the positioning of the inner conductor during the assembly process, and also affecting the coaxiality between the inner conductor and the outer conductor after assembly to a certain extent. In addition, the sleeve is divided into two into an upper and lower sleeve, which has high processing costs and is difficult to ensure coaxiality with the inner cavity of the shell.

[0005] For the coaxial connector in the latter document, only one insulating support is used. Although the structure is simple and easy to produce, the thickness of the insulating support is generally less than 1.7 mm due to the frequency. However, it cannot be made too thin, otherwise it is easy to make the inner conductor eccentric; and it cannot be made too thick, otherwise it will affect the transmission performance. Therefore, it is difficult to achieve a balance between preventing the inner conductor from being eccentric and the transmission performance in actual production. In order to facilitate assembly to the inner conductor, the insulating support in the document is also made into a split structure of upper and lower semi-insulating supports (due to the increase in thickness, the overall structure is difficult to assemble into the slot of the inner conductor by axial sliding). In this way, the defect in the former document will appear again, that is, the upper and lower semi-insulating supports and the inner conductor are easy to separate. Even if there is a clamping ring on the outer periphery, during the process of inserting into the left outer conductor, when the clamping ring or the insulating support is under axial force, the clamping ring and the upper and lower semi-insulating supports and the inner conductor will still separate from each other. Therefore, there is still the disadvantage of inconvenience in assembly, and it is also difficult to ensure the transmission characteristics after assembly. Furthermore, processing the insulating support into an upper part and a lower part also has the disadvantage of high processing cost. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a coaxial connector with good coaxiality and easy processing and assembly in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a coaxial connector, including a first outer conductor, a second outer conductor, an inner conductor and an insulating support with a center hole, the first outer conductor has a small diameter cavity and a large diameter cavity coaxially distributed and interconnected, an inner step surface is formed on the inner wall of the first outer conductor between the large and small diameter cavities, the second outer conductor is hollow and one end of the second outer conductor is connected to the large diameter cavity of the first outer conductor, characterized in that: two slots are axially spaced apart on the inner conductor, there are two insulating supports, which are respectively clamped in the corresponding slots of the inner conductor through the center hole, and a support member whose two ends are respectively abutted against the insulating supports on the corresponding sides is also sleeved on the inner conductor between the two insulating supports, the support member and the two insulating supports form an assembly, and the two ends of the assembly are respectively abutted against the inner step surface of the first outer conductor and the end face of one end of the second outer conductor.

[0008] In the above scheme, the structure of the support member can have various forms. A preferred structure is that the support member is designed as a tubular body, and at least one of the two end faces of the tubular body is provided with a limiting groove for the insulating support on the corresponding side to sit. At this time, the depth of the limiting groove is preferably equal to the thickness of the insulating support, so that the surface of the insulating support sitting in the limiting groove is flush with the corresponding end face of the tubular body, so that the overall stability after assembly is better.

[0009] In the above preferred solution, the tubular body can be designed as follows: the tubular body has the above-mentioned limit groove on one end surface adjacent to the inner step surface, the tubular body has a notch on the outer circumferential surface of the other end away from the inner step surface to form an outer step surface, and the outer diameter of the other end of the tubular body is equal to the outer diameter of the insulating support at the other end, and the other end of the tubular body and the insulating support at the other end are covered with a limit sleeve that abuts against the outer step surface. This solution has relatively low processing accuracy for the insulating support, the inner conductor and the tubular body, which is convenient for processing.

[0010] Of course, the support member can also be designed as a straight tube, and the two insulating supports are respectively attached to the two end surfaces of the straight tube. In this case, it is preferred that the outer diameter of the two insulating supports is less than or equal to the outer diameter of the straight tube, so as to facilitate processing and assembly, and also achieve the purpose of being able to make an integral part.

[0011] In addition to the above-mentioned support member structure, the preferred support member is designed as a cylindrical body formed by a spiral wire. The spiral structure allows air to be accommodated between adjacent spiral turns, so that the coaxial connector of the same size has better transmission characteristics.

[0012] In order to improve the strength of the cylindrical body, adjacent spiral turns in the cylindrical body are connected with axially extending connecting strips to prevent the cylindrical body from axially shrinking.

[0013] In the above schemes, the insulating support may be provided with a radially extending radial slit, the outer end of which is located at the outer edge of the insulating support, and the inner end of which extends to the radial middle of the insulating support after passing through the center of the central hole of the insulating support; or the insulating support may be provided with a radially extending radial slit, the outer end of which is located at the outer edge of the insulating support, and the inner end of which is located at the edge of the central hole. During assembly, the central hole of the insulating support may be slightly enlarged by utilizing the radial slit to facilitate assembly, thereby further improving assembly efficiency.

[0014] It is further preferred that the thickness of the insulating support is 0.45 mm to 0.55 mm, which not only meets the requirements of mechanical support, but also allows as much air medium as possible between the inner conductor and the outer conductor. Insulating supports of this thickness are easy to stamp, have high production efficiency and low cost.

[0015] Compared with the prior art, since the present invention adopts two insulating supports, it can not only ensure that the inner conductor is not easy to be eccentric, but also allow the insulating supports to be made thin enough while meeting the mechanical strength requirements, so that the dielectric constant is low and the performance is stable; secondly, with the help of the support member, the two insulating supports can be reliably positioned under the action of the slot and the support member, and form an organic integrated part with the inner conductor and the support member, and will not spread out from each other, but can provide good axial holding force and reliable fixation; furthermore, as an integrated part (or in sequence), it is easy to insert during the assembly process of the first outer conductor, so that the assembly efficiency is high and the coaxiality is good; at the same time, such insulating supports and support members are also easy to process, which can reduce the production cost to a certain extent, making the present invention more competitive in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the inner conductor, the tubular body and two insulating supports;

[0018] Figure 3 for Figure 2 A schematic diagram showing that after the guide sleeves are put on both ends of the inner conductor, the insulating support is axially slid onto the inner conductor;

[0019] Figure 4 for Figure 1 Front view of the middle insulation support;

[0020] Figure 5 for Figure 4 AA section view;

[0021] Figure 6 is a schematic structural diagram of a second embodiment of the present invention;

[0022] Figure 7 for Figure 6 A schematic diagram of the structure of the inner conductor, the tubular body and two insulating supports;

[0023] Figure 8 It is a schematic structural diagram of an inner conductor, a tubular body and two insulating supports in a third embodiment of the present invention;

[0024] Fig. 9 It is a schematic structural diagram of an inner conductor, a tubular body and two insulating supports in a fourth embodiment of the present invention;

[0025] Fig.10 for Fig. 9 Schematic diagram of the three-dimensional decomposition of

[0026] Fig.11 is a schematic structural diagram of a fifth embodiment of the present invention;

[0027] Fig.12 FIG. 6 is a schematic structural diagram of a sixth embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the terms "center", "depth", "thickness", "up", "down", "front", "back", "left", "right", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] First embodiment: Figures 1 to 5As shown, the coaxial connector includes a first outer conductor 1, a second outer conductor 2, an inner conductor 3, an insulating support 4 with a center hole 41, and a support member 5, wherein the first outer conductor 1 has a small diameter cavity 11 and a large diameter cavity 12 coaxially distributed and interconnected, and an inner step surface 13 is formed on the inner wall of the first outer conductor between the large and small diameter cavities; the second outer conductor 2 is hollow and one end of the second outer conductor 2 is connected to the large diameter cavity 12 of the first outer conductor 1. In the figure, one end of the second outer conductor 2 is directly and tightly inserted into the large diameter cavity 12 of the first outer conductor 1 (that is, one end of the second outer conductor 2 becomes the insertion end). Of course, the second outer conductor 2 and the first outer conductor 1 can also be assembled in other existing ways, as long as the following installation and positioning of the integral part are met.

[0031] Two slots 31 are axially spaced apart on the inner conductor 3; there are two insulating supports 4, which are respectively clamped in the corresponding slots 31 of the inner conductor 3 through the center hole 41. Considering the convenience of processing and assembly, the two insulating supports 4 are made of the same structure, and because they are thin, they can be processed by stamping to improve production efficiency; the support member 5 is sleeved on the inner conductor 3 between the two insulating supports 4, and the two ends of the support member 5 are respectively against the insulating supports 4 on the corresponding side, so that the support member 5 and the two insulating supports 4 form an assembly, and the two ends of the assembly are respectively against the inner step surface 13 of the first outer conductor 1 and the end surface of the insertion end of the second outer conductor 2. In the present embodiment, the support member specifically adopts a tubular structure. In order to distinguish it from the tubular body in the second embodiment described below, the tubular body in the present embodiment is referred to as the first tubular body 5a. A limiting groove 51 for the insulating support 4 on the left side to sit is opened on one of the two end faces of the first tubular body facing the inner step surface 13 (i.e., the left end face in the figure), and the depth of the limiting groove 51 is equal to the thickness of the insulating support 4 on the left side, so that the surface of the insulating support 4 sitting in the limiting groove 51 is flush with the left end face of the first tubular body 5a.

[0032] In order to improve the assembly efficiency, a conical guide sleeve 6 is also sleeved on the end of the inner conductor 3, and the large end of the conical guide sleeve 6 is smoothly connected with the outer periphery of the inner conductor 3, and the small end of the conical guide sleeve 6 can be inserted into the central hole 41 of the insulating support 4. In this embodiment, the structure of the insulating support 4 is preferably designed as follows: the thickness of the insulating support 4 is 0.50 mm (of course, it can also be 0.45 mm or 0.55 mm), and a radial slit 42 extending radially is opened on the insulating support 4, the outer end of the radial slit 42 is located at the outer edge of the insulating support 4, and the inner end of the radial slit 42 extends to the radial middle of the insulating support 4 after passing through the center of the central hole 41 of the insulating support 4, see Figure 4 and Figure 5 .

[0033] In this way, when assembling, the insulating support 4 on the left side is guided by the guide sleeve 6 at the left end of the inner conductor 3, and the radial gap 42 is used to make the center hole 41 of the insulating support 4 on the left side slightly larger, so that the insulating support 4 on the left side can quickly slide axially into the left-side slot 31 of the inner conductor 3, and then the first tubular body 5a is moved to allow the insulating support 4 on the left side to fall into the limiting groove 51 of the first tubular body at the same time, and then the insulating support 4 on the right end is assembled. Similarly, with the assistance of the guide sleeve 6 at the right end, the radial gap 42 is used to make the center hole 41 of the insulating support 4 on the right side slightly larger, and then it is quickly axially slid into the slot 31 on the right side. At this time, the insulating support 4 on the right side just abuts against the right end face of the first tubular body 5a. At this time, the two insulating supports 4 have been organically combined with the inner conductor 3 into an integral part under the action of the corresponding slot 31 of the inner conductor and the first tubular body 5a. Then the integrated part is inserted into the large diameter cavity 12 of the first outer conductor 1 until the left end face of the component abuts against the inner step face 13 on the first outer conductor, and then the second outer conductor 2 is tightly inserted into the large diameter cavity 12 of the first outer conductor, so that the right end face of the component abuts against the insertion end of the second outer conductor 2 (i.e., the left end face of the second outer conductor 2 in the figure). Obviously, in this embodiment, when assembled in place, the left end face of the component is a partial end face of the left insulating support 4 and the left end face of the first tubular body 5a abut against the inner step face 13, and the right end of the component is only the right end face of the insulating support abutting against the insertion end of the second outer conductor. In order to better position the insulating support 4 on the right side at this time, a positioning groove 21 is opened on the end face of the insertion end of the second outer conductor 2, and the insulating support 4 on the right side is limited in the positioning groove 21. Such a scheme has relatively low requirements on the processing accuracy of the first tubular body 5a, so as to further reduce the processing cost.

[0034] In addition to the above structure, the first outer conductor 1 of the coaxial connector may be provided with a first screw sleeve 7 according to the prior art, and the second outer conductor may be provided with a second screw sleeve 8, and the first and second screw sleeves may be used to connect the coaxial connector to an external plug.

[0035] In this embodiment, the two ends of the inner conductor 3 have the same structure. Of course, they can also be made into different structures according to the plug-in requirements in the prior art to meet the plug-in connection requirements in different occasions.

[0036] The above-assembled integrated part of the two insulating supports 4, the first tubular body 5a and the inner conductor 3 can be used as a standard part of the same type of coaxial connector, which greatly reduces the inventory of parts and can be used in coaxial connectors in various application scenarios such as adapters, cable connectors, panel connectors, etc.

[0037] Second embodiment: Figure 6 and Figure 7, which is different from the first embodiment described above in that: a limiting groove 51 for the right insulating support to be seated is also provided on the right end surface of the first tubular body, and the tubular body with two limiting grooves is called the second tubular body 5b. Although there is no need to provide a positioning groove on the second outer conductor 2, the insulating support on the right side must be located in the slot 31 and fall into the limiting groove 51, so the processing accuracy of the second tubular body is relatively high. Its assembly method is the same as that of the first embodiment described above, and will not be repeated here.

[0038] The third embodiment: Figure 8 As shown in FIG. 1 , in order to reduce the machining accuracy of the second tubular body 5b in the second embodiment, as a further preferred solution, the structure of the first tubular body 5a is further improved, that is, a notch is opened in the circumferential direction on the outer peripheral surface of the right end of the first tubular body 5a, so that the tubular body at this time is called the third tubular body 5c, and the outer surface of the third tubular body 5c forms an outer step surface 52, so that the outer diameter of the right end of the third tubular body 5c is equal to the outer diameter of the insulating support 4 on the right side, when the insulating support 4 on the right side abuts against the outer diameter of the third tubular body 5c, the outer diameter of the third tubular body 5c is equal to the outer diameter of the insulating support 4 on the right side, and the outer diameter of the third tubular body 5c is equal to the outer diameter of the insulating support 4 on the right side. When the right end surface is formed, a limiting sleeve 10 is arranged on the right end of the third tubular body and the outer outer shell of the insulating support 4 on the right side. That is, at this time, the second tubular body 5b in the second embodiment is made into two parts, which can reduce the processing requirements of the second tubular body 5b. However, at the same time, since the limiting sleeve 10 abuts against the outer step surface 52, when force is applied in the insertion direction, the limiting sleeve 10, the third tubular body 5c, the two insulating supports 4 and the inner conductor 3 will not be dispersed, and the requirement of organic integration can still be met for the purpose of rapid insertion.

[0039] Fourth embodiment: Fig. 9 and Fig.10 In order to introduce more air and obtain better matching transmission characteristics, the support member 5 is designed to be a cylindrical body 5d formed by a spiral wire. At this time, there is air between adjacent spiral turns in the cylindrical body 5d, so that the transmission characteristics of such a coaxial connector are better. In order to improve the supporting strength, an axially extending connecting strip 53 is connected between adjacent spiral turns of the cylindrical body 5d to prevent the cylindrical body 5d from axially shrinking.

[0040] The assembly method of this embodiment is the same as that of the first embodiment, that is, the left insulating support 4 is first assembled on the inner conductor in the manner of the first embodiment, so that it is clamped in the left clamping groove 31, then the cylindrical body 5d is sleeved on the inner conductor 3, and then the right insulating support 4 is sleeved in the manner of the first embodiment, so that it is clamped in the right clamping groove 31. The assembled integrated part is then inserted into the first outer conductor 1, and then the second outer conductor is assembled in the manner of the first embodiment.

[0041] Of course, during assembly, the inner conductor 3, the insulating support on the left, the cylindrical body 5d, and the insulating support on the right can also be sequentially installed on the first outer conductor 1, that is, after the insulating support 4 on the left is clamped in the left clamping groove of the inner conductor 3, the inner conductor 3 with the insulating support 4 on the left is inserted into the first outer conductor 1, so that the insulating support 4 on the left abuts against the inner step surface 13, and then the cylindrical body 5d is sleeved on the inner conductor 3, so that the left end face of the cylindrical body 5d abuts against the right end face of the insulating support 4 on the left, and then the insulating support 4 on the right is sleeved on the inner conductor 3, so that it is clamped in the right clamping groove 31 and abuts against the right end face of the cylindrical body 5d, and finally the second outer conductor 2 is tightly inserted into the large diameter cavity of the first outer conductor 1.

[0042] Fifth embodiment: Fig.11 As shown, the difference between the embodiment 1 and the embodiment 2 is that the support member is designed as a straight tube 5e, and the two insulating supports 4 are respectively attached to the two end surfaces of the straight tube 5f, and the outer diameters of the two insulating supports 4 are equal to the outer diameter of the straight tube 5e. After assembly, the insulating support 4 on the left side directly abuts against the inner step surface 13, and the insulating support 4 on the right side directly abuts against the insertion end of the second outer conductor 2. This solution simplifies the processing of the support member, but can also achieve the purpose of the present invention.

[0043] The assembly method of this embodiment can be referred to the fourth embodiment and will not be described in detail here.

[0044] Sixth embodiment: Fig.12 As shown, the difference between the fifth embodiment and the above-mentioned embodiment is that the outer diameters of the two insulating supports 4 are smaller than the outer diameter of the straight tube 5f. After assembly, the insulating support 4 on the left side directly abuts against the inner step surface, and the insulating support 4 on the right side directly abuts against the insertion end of the second outer conductor 2. Such a solution is also simple in processing the support member and can also achieve the purpose of the present invention.

[0045] The assembly method of this embodiment can be referred to the fourth embodiment and will not be described in detail here.

Claims

1. A coaxial connector, comprising a first outer conductor (1), a second outer conductor (2), an inner conductor (3) and an insulating support (4) with a central hole (41), wherein the first outer conductor (1) has a small diameter cavity (11) and a large diameter cavity (12) coaxially distributed and interconnected, an inner step surface (13) is formed on the inner wall of the first outer conductor (1) between the large and small diameter cavities, the second outer conductor (2) is hollow and one end of the second outer conductor (2) is connected to the large diameter cavity (12) of the first outer conductor (1), characterized in that: The inner conductor (3) is provided with two slots (31) spaced apart in the axial direction, the insulating supports (4) are provided with two slots (31) respectively fixed in the corresponding slots (31) of the inner conductor (3) through the center hole (41), and a support member (5) is sleeved on the inner conductor (3) between the two insulating supports (4), the two ends of which are respectively abutted against the insulating supports (4) on the corresponding sides, the support member (5) and the two insulating supports (4) form an assembly, the two ends of which are respectively abutted against the inner step surface (13) of the first outer conductor (1) and the end surface of one end of the second outer conductor (2); The support member (5) is designed as a tubular body, and at least one of the two end faces of the tubular body is provided with a limiting groove (51) for the insulating support (4) on the corresponding side to be seated; The tubular body is provided with the limiting groove (51) on one end face adjacent to the inner step face (13), and the tubular body is provided with a notch in the circumferential direction on the outer peripheral face of the other end away from the inner step face (13) to form an outer step face (52), and the outer diameter of the other end of the tubular body is equal to the outer diameter of the insulating support (4) at the other end, and a limiting sleeve (10) is sleeved on the other end of the tubular body and the insulating support (4) at the other end to abut against the outer step face (52).

2. The coaxial connector according to claim 1, characterized in that: The depth of the limiting groove (51) is equal to the thickness of the insulating support (4), so that the surface of the insulating support (4) located in the limiting groove (51) is flush with the corresponding end surface of the tubular body.

3. The coaxial connector according to claim 1, characterized in that: The support member is designed as a straight cylinder (5f), and the two insulating supports (4) are respectively attached to the two end surfaces of the straight cylinder (5f).

4. The coaxial connector according to claim 3, characterized in that: The outer diameters of the two insulating supports (4) are smaller than or equal to the outer diameter of the straight tube (5f).

5. The coaxial connector according to claim 1, characterized in that: The support member is designed as a cylindrical body (5d) formed by a spiral wire.

6. The coaxial connector according to claim 5, characterized in that: Adjacent spiral turns in the cylindrical body (5d) are connected by axially extending connecting strips (53).

7. The coaxial connector according to any one of claims 1 to 6, characterized in that: The insulating support (4) is provided with a radial slit extending radially, the outer end of the radial slit being located at the outer edge of the insulating support (4), and the inner end of the radial slit extending through the center of the central hole (41) of the insulating support to the radial middle of the insulating support (4); Alternatively, a radial slit extending radially is formed on the insulating support, the outer end of the radial slit is located at the outer edge of the insulating support, and the inner end of the radial slit is located at the edge of the central hole.

8. The coaxial connector according to any one of claims 1 to 6, characterized in that: The thickness of the insulating support (4) is 0.45 mm to 0.55 mm.

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