Signal transmission structure of coaxial female end connector

Abstract

The utility model discloses a coaxial female end connector signal transmission structure, which relates to the technical field of connectors, and comprises an insulating core, a central conductor and a coaxial cable, one end of the coaxial cable is connected with the central conductor, and the central conductor is inserted in the insulating core; the center conductor is provided with three anti-retreat clamping thorns, the three anti-retreat clamping thorns are arranged in a matched mode and fixedly connected with the center conductor, the insulating core is provided with a pair of stop skylights, and the pair of stop skylights are arranged on the insulating core in a matched mode. When the central conductor is inserted into the insulating core, one anti-retreating clamping thorn can be matched with one stopping skylight, so that the problem that when a signal transmission structure of a conventional coaxial female end connector is in use, the signal transmission structure cannot be used due to the poor anti-retreating effect of the central conductor is solved. Therefore, the problems of unstable connection between the central conductor and the insulating core and unstable signal transmission of the coaxial female end connector are solved.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a signal transmission structure for a coaxial female connector. Background Technology

[0002] With the rapid development of the automotive industry, the demands for intelligent and autonomous driving technologies in automobiles are becoming increasingly stringent, placing higher requirements on the data transmission and stability of high-speed automotive connectors. Coaxial female connectors, as crucial components and solutions in the automotive radio frequency field, play a vital role in automotive navigation systems, in-vehicle phones, audio equipment, electronic radar, cameras, and other applications.

[0003] In existing technologies, coaxial female connectors generally include a plastic shell, a shielding shell, and a signal transmission structure. The signal transmission structure typically includes an insulating core, a center conductor, and a coaxial cable. Currently, the insulating core and center conductor in most signal transmission structures rely solely on a pair of anti-retraction clips for tack protection. This structure results in poor tack protection for the center conductor during use, easily leading to unstable connections between the center conductor and the insulating core, and consequently, unstable signal transmission in the coaxial female connector.

[0004] Therefore, we urgently need a signal transmission structure that can effectively prevent the center conductor from derailing. Utility Model Content

[0005] Based on this, and in response to the above problems, this utility model proposes a signal transmission structure for a coaxial female connector, which solves the problem that the current signal transmission structure for coaxial female connectors suffers from poor anti-retraction effect of the center conductor, resulting in unstable connection between the center conductor and the insulating core, and unstable signal transmission of the coaxial female connector.

[0006] The technical solution of this utility model is:

[0007] A signal transmission structure for a coaxial female connector includes an insulating core, a center conductor, and a coaxial cable. One end of the coaxial cable is connected to the center conductor, and the center conductor is inserted into the insulating core.

[0008] The center conductor is provided with three anti-reverse clips, which are set together and fixedly connected to the center conductor. The insulating core is provided with a pair of stop windows, which are set together on the insulating core.

[0009] When the center conductor is inserted into the insulating core, one of the anti-reverse clips can cooperate with one of the stop windows.

[0010] Preferably, the center conductor includes a spring clip, a conductor body, and a cable crimping wing. The spring clip is fixedly disposed on one side of the conductor body, the cable crimping wing is fixedly disposed on the other side of the conductor body, and three anti-reverse clips are fitted onto the conductor body and fixedly connected to the conductor body.

[0011] Preferably, one end of the coaxial cable is fixedly connected to the central conductor via a cable crimping wing, and the end of the cable crimping wing that contacts the coaxial cable is provided with several anti-detachment grooves.

[0012] Preferably, the spring portion includes a pair of mating arc-shaped springs, one end of each pair of arc-shaped springs is fixedly connected to the conductor body, and the other end is provided with an arc-shaped portion. The arc-shaped portions on the pair of arc-shaped springs can cooperate to form a trumpet-shaped guide portion.

[0013] Preferably, the conductor body is provided with a flanged stop block, and the insulating core is provided with a conductor stop surface that cooperates with the flanged stop block. When the center conductor is inserted into the insulating core, the flanged stop block contacts and limits the contact with the conductor stop surface.

[0014] Preferably, the insulating core is provided with spring clip clearance holes, which are matched with a pair of arc-shaped spring clips.

[0015] Preferably, the insulating core is provided with at least one pair of interference ribs, and the at least one pair of interference ribs are arranged on the insulating core and fixedly connected to the insulating core.

[0016] Preferably, the insulating core is provided with an annular stop groove, which is located on one side of the interference rib.

[0017] Preferably, the coaxial cable includes, from the inside out, a copper core, an insulation layer, an aluminum foil shielding layer, a copper wire shielding layer, and an insulation sheath. One end of the copper core is fixedly connected to the central conductor via a cable crimping wing, and several anti-detachment grooves are provided in conjunction with the copper core.

[0018] Preferably, one end of the copper wire shielding layer of the cable is provided with a crimping ring, one end of the crimping ring is provided with a triangular crimping wing, and the other end is provided with a triangular crimping groove that cooperates with the triangular crimping wing. When the crimping ring is crimped onto the copper wire shielding layer of the cable, the triangular crimping wing is located in the triangular crimping groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention features three anti-retraction spikes on the center conductor and a pair of stop windows on the insulating core. During use, when the center conductor is inserted into the insulating core, the anti-retraction spikes cooperate with the stop windows to prevent retraction. Compared to traditional designs that rely on only two spikes for anti-retraction, this invention offers a stronger anti-retraction effect. Furthermore, the three anti-retraction spikes are independent of the assembly direction; regardless of the orientation, one anti-retraction spike will engage with one of the stop windows when the center conductor is inserted into the insulating core, effectively preventing the center conductor from slipping out of the insulating core. This significantly improves the stability of the connection between the center conductor and the insulating core, thereby ensuring the stability of signal transmission in the coaxial female connector. This solves the problem of unstable connection between the center conductor and the insulating core, and unstable signal transmission in current coaxial female connector signal transmission structures, caused by poor anti-retraction performance of the center conductor. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of a signal transmission structure for a coaxial female connector as described in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the insulating core described in the embodiments of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the central conductor described in the embodiment of this utility model;

[0024] Figure 4 This is a partially enlarged structural schematic diagram of a coaxial female connector signal transmission structure described in this embodiment of the present invention;

[0025] Figure 5 This is a partial cross-sectional enlarged structural schematic diagram of a coaxial female connector signal transmission structure as described in this embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the coaxial cable described in the embodiments of this utility model;

[0027] Figure 7 This is a partial structural schematic diagram of the coaxial cable described in this embodiment of the utility model;

[0028] Figure 8 This is a partial cross-sectional structural schematic diagram of a coaxial female connector signal transmission structure as described in an embodiment of this utility model;

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Insulating core, 101-Center conductor, 102-Coaxial cable, 103-Anti-removal spike, 104-Stop window, 105-Spring part, 106-Conductor body, 107-Cable crimping wing, 108-Anti-detachment groove, 109-Arc-shaped spring, 110-Arc-shaped part, 111-Guide part, 112-Flanged stop block, 113-Conductor stop surface, 114-Spring avoidance hole, 115-Interference rib, 116-Annular stop groove, 117-Cable copper core, 118-Cable insulation layer, 119-Cable shielding aluminum foil layer, 120-Cable shielding copper wire layer, 121-Cable insulation outer sheath, 122-Crimping ring, 123-Triangular crimping wing, 124-Triangular crimping groove. Detailed Implementation

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] Example:

[0033] like Figures 1 to 3 As shown, in order to solve the above problems, this embodiment discloses a signal transmission structure for a coaxial female connector, including an insulating core 100, a center conductor 101 and a coaxial cable 102. One end of the coaxial cable 102 is connected to the center conductor 101, and the center conductor 101 is inserted into the insulating core 100.

[0034] The center conductor 101 is provided with three anti-reverse clips 103, which are configured in cooperation and fixedly connected to the center conductor 101. The insulating core 100 is provided with a pair of stop windows 104, which are configured in cooperation on the insulating core 100.

[0035] When the center conductor 101 is inserted into the insulating core 100, one of the anti-retraction clips 103 can cooperate with one of the stop windows 104.

[0036] This invention features three anti-retraction spikes 103 on the center conductor 101 and a pair of stop windows 104 on the insulating core 100. During use, when the center conductor 101 is inserted into the insulating core 100, the anti-retraction spikes 103 cooperate with the stop windows 104 to prevent retraction. Compared to traditional designs that rely on only two spikes for anti-retraction, this invention offers a stronger anti-retraction effect. Furthermore, the three anti-retraction spikes 103 are independent of the assembly direction. During use, regardless of the assembly direction, when the center conductor 101 is inserted into the insulating core 100, one anti-retraction spike 103 will engage with one of the stop windows 104, effectively preventing the center conductor 101 from exiting the insulating core 100. This significantly improves the stability of the connection between the center conductor 101 and the insulating core 100, thereby ensuring the stability of signal transmission in the coaxial female connector. This invention solves the problem that the current coaxial female connector signal transmission structure has an unstable connection between the center conductor 101 and the insulating core 100, and unstable signal transmission of the coaxial female connector, due to the poor anti-retraction effect of the center conductor 101 during use.

[0037] like Figure 4 As shown, in order to improve the reliability of the connection between the coaxial cable 102 and the center conductor 101, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the center conductor 101 includes a spring piece 105, a conductor body 106 and a cable crimping wing 107. The spring piece 105 is fixedly disposed on one side of the conductor body 106, the cable crimping wing 107 is fixedly disposed on the other side of the conductor body 106, and three anti-reverse clips 103 are disposed on the conductor body 106 and fixedly connected to the conductor body 106.

[0038] One end of the coaxial cable 102 is fixedly connected to the central conductor 101 through the cable crimping wing 107, and the end of the cable crimping wing 107 that contacts the coaxial cable 102 is provided with several anti-detachment grooves 108.

[0039] In use, the center conductor 101 employs a combination design of a spring clip 105, a conductor body 106, and a cable crimping wing 107 to securely connect the cable crimping wing 107 to the coaxial cable 102. Several anti-detachment grooves 108 at its contact end increase the friction and engagement force with the coaxial cable 102, preventing cable detachment, ensuring stable electrical connection, and improving the reliability of the connection between the coaxial cable 102 and the center conductor 101. This structure effectively prevents signal interruption due to cable loosening in vibration environments.

[0040] like Figure 3As shown, in order to facilitate connection with the board end connector, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the spring part 105 includes a pair of cooperating arc-shaped springs 109. One end of the pair of arc-shaped springs 109 is fixedly connected to the conductor body 106, and the other end is provided with an arc-shaped part 110. The arc-shaped parts 110 on the pair of arc-shaped springs 109 can cooperate to form a trumpet-shaped guide part 111.

[0041] In use, the pair of arc-shaped springs 109 of the spring section 105 form a horn-shaped guide section 111, which facilitates connection with other components, ensures good electrical contact, reduces contact resistance, reduces signal transmission loss, and improves signal transmission efficiency and quality. It is suitable for high-speed data transmission and other scenarios with high requirements for signal quality.

[0042] like Figure 5 As shown, in order to further improve the reliability of the connection between the center conductor 101 and the insulating core 100, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the conductor body 106 is provided with a flanged stop block 112, and the insulating core 100 is provided with a conductor stop surface 113 that cooperates with the flanged stop block 112. When the center conductor 101 is inserted into the insulating core 100, the flanged stop block 112 contacts and limits the contact with the conductor stop surface 113.

[0043] In use, the flanged stop block 112 on the conductor body 106 cooperates with the conductor stop surface 113 inside the insulating core 100 to form precise limiting and positioning. At the same time, when the center conductor 101 is inserted into the insulating core 100, the flanged stop block 112 contacts and limits the conductor stop surface 113, which not only ensures the correct position of the center conductor 101 inside the insulating core 100, but also further enhances the stability of the connection.

[0044] like Figure 5 As shown, in order to facilitate the deformation of the arc-shaped spring 109 and avoid interference, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the insulating core 100 is provided with a spring shim hole 114, which is configured to cooperate with a pair of arc-shaped springs 109.

[0045] When in use, the setting of the spring clip clearance hole 114 can effectively prevent the arc-shaped spring clip 109 from interfering with the insulating core 100 during operation, ensuring the normal operation of the arc-shaped spring clip 109, maintaining a good electrical connection, and facilitating stable signal transmission.

[0046] like Figure 2As shown, in order to facilitate the stable installation of the insulating core 100 inside the shielding metal shell structure, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the insulating core 100 is provided with at least one pair of interference ribs 115. The at least one pair of interference ribs 115 are arranged on the insulating core 100 and are fixedly connected to the insulating core 100.

[0047] By setting at least one pair of interference ribs 115, interference can be formed when the insulating core 100 is installed inside the shielding metal shell structure, thereby increasing the stability of the connection between the insulating core 100 and the shielding metal shell structure.

[0048] The insulating core 100 is provided with an annular stop groove 116, which is located on one side of the interference rib 115.

[0049] In use, the stability of the connection between the insulating core 100 and the shielding metal shell structure can be further enhanced by setting the annular stop groove 116.

[0050] like Figures 6 to 7 As shown, the coaxial cable 102 includes a copper core 117, an insulation layer 118, a shielding aluminum foil layer 119, a shielding copper wire layer 120, and an insulation sheath 121 arranged sequentially from the inside out. One end of the copper core 117 is fixedly connected to the central conductor 101 through a cable crimping wing 107. Several anti-detachment grooves 108 are arranged in conjunction with the copper core 117.

[0051] One end of the cable shielding copper wire layer 120 is provided with a crimping ring 122. One end of the crimping ring 122 is provided with a triangular crimping wing 123, and the other end is provided with a triangular crimping groove 124 that cooperates with the triangular crimping wing 123. When the crimping ring 122 is crimped onto the cable shielding copper wire layer 120, the triangular crimping wing 123 is located in the triangular crimping groove 124.

[0052] The aluminum foil shielding layer 119 and copper wire shielding layer 120 of the coaxial cable 102 effectively shield against external electromagnetic interference, ensuring that internal signal transmission is unaffected. The crimping ring 122 at one end of the copper wire shielding layer 120, through the engagement of a triangular crimping wing 123 and a triangular crimping groove 124, ensures that the crimping ring 122 is firmly crimped onto the copper wire shielding layer 120, enhancing connection stability and further improving signal transmission stability. The cable insulation layer 118 and the cable insulation sheath 121 provide insulation protection for the internal structure of the cable, preventing leakage and short circuits, and ensuring the normal operation of the connector.

[0053] like Figure 8 As shown, after the crimping ring 122 is crimped onto one end of the cable shielding copper wire layer 120, one end of the cable shielding copper wire layer 120 needs to be folded back to cover the crimping ring 122.

[0054] Working principle of this utility model:

[0055] This invention features three anti-retraction spikes 103 on the center conductor 101 and a pair of stop windows 104 on the insulating core 100. During use, when the center conductor 101 is inserted into the insulating core 100, the anti-retraction spikes 103 cooperate with the stop windows 104 to prevent retraction. Compared to traditional designs that rely on only two spikes for anti-retraction, this invention offers a stronger anti-retraction effect. Furthermore, the three anti-retraction spikes 103 are independent of the assembly direction. During use, regardless of the assembly direction, when the center conductor 101 is inserted into the insulating core 100, one anti-retraction spike 103 will engage with one of the stop windows 104, effectively preventing the center conductor 101 from exiting the insulating core 100. This significantly improves the stability of the connection between the center conductor 101 and the insulating core 100, thereby ensuring the stability of signal transmission in the coaxial female connector.

[0056] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A signal transmission structure for a coaxial female connector, characterized in that, It includes an insulating core (100), a center conductor (101) and a coaxial cable (102), one end of which is connected to the center conductor (101), and the center conductor (101) is inserted into the insulating core (100); The center conductor (101) is provided with three anti-reverse clips (103), which are arranged in a coordinated manner and fixedly connected to the center conductor (101). The insulating core (100) is provided with a pair of stop windows (104), which are arranged in a coordinated manner on the insulating core (100). When the center conductor (101) is inserted into the insulating core (100), one of the anti-reverse clips (103) can cooperate with one of the stop windows (104).

2. The signal transmission structure of a coaxial female connector according to claim 1, characterized in that, The center conductor (101) includes a spring piece (105), a conductor body (106), and a cable crimping wing (107). The spring piece (105) is fixedly disposed on one side of the conductor body (106), and the cable crimping wing (107) is fixedly disposed on the other side of the conductor body (106). Three anti-reverse clips (103) are disposed on the conductor body (106) and are fixedly connected to the conductor body (106).

3. The signal transmission structure of a coaxial female connector according to claim 2, characterized in that, One end of the coaxial cable (102) is fixedly connected to the center conductor (101) through the cable crimping wing (107), and the end of the cable crimping wing (107) that contacts the coaxial cable (102) is provided with several anti-detachment grooves (108).

4. The signal transmission structure of a coaxial female connector according to claim 3, characterized in that, The spring section (105) includes a pair of matching arc-shaped springs (109). One end of each pair of arc-shaped springs (109) is fixedly connected to the conductor body (106), and the other end is provided with an arc-shaped part (110). The arc-shaped parts (110) on the pair of arc-shaped springs (109) can cooperate to form a trumpet-shaped guide part (111).

5. The signal transmission structure of a coaxial female connector according to claim 4, characterized in that, The conductor body (106) is provided with a flanged stop block (112), and the insulating core (100) is provided with a conductor stop surface (113) that cooperates with the flanged stop block (112). When the center conductor (101) is inserted into the insulating core (100), the flanged stop block (112) contacts and limits the contact with the conductor stop surface (113).

6. The signal transmission structure of a coaxial female connector according to claim 5, characterized in that, The insulating core (100) is provided with a spring clip clearance hole (114), which is matched with a pair of arc-shaped spring clips (109).

7. A signal transmission structure for a coaxial female connector according to claim 1 or 6, characterized in that, The insulating core (100) is provided with at least one pair of interference ribs (115), which are arranged on the insulating core (100) and fixedly connected to the insulating core (100).

8. The signal transmission structure of a coaxial female connector according to claim 7, characterized in that, An annular stop groove (116) is provided on the insulating core (100), and the annular stop groove (116) is located on one side of the interference rib (115).

9. The signal transmission structure of a coaxial female connector according to claim 8, characterized in that, The coaxial cable (102) includes, from the inside out, a copper core (117), a cable insulation layer (118), a cable shielding aluminum foil layer (119), a cable shielding copper wire layer (120), and a cable insulation outer sheath (121). One end of the copper core (117) is fixedly connected to the center conductor (101) through a cable crimping wing (107). Several anti-detachment grooves (108) are provided in conjunction with the copper core (117).

10. The signal transmission structure of a coaxial female connector according to claim 9, characterized in that, One end of the cable shielding copper wire layer (120) is provided with a crimping ring (122), one end of the crimping ring (122) is provided with a triangular crimping wing (123), and the other end is provided with a triangular crimping groove (124) that cooperates with the triangular crimping wing (123). When the crimping ring (122) is crimped onto the cable shielding copper wire layer (120), the triangular crimping wing (123) is located in the triangular crimping groove (124).

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