A stamped radio frequency plug-in connector

Abstract

The application relates to a stamping radio frequency plug-in connector which comprises a sheath and a conductor assembly arranged in the sheath, the conductor assembly comprises an inner conductor, an insulator and an outer conductor arranged from inside to outside, the outer conductor is axially provided with a counter-plug part, a convex part and a crimping part, the crimping part is sleeved with an injection molding part on one side close to the convex part, the injection molding part has a convex ring coaxial with the convex part, and the convex ring and the convex part are both abutted against the inner side wall of the sheath. The application has the effect of improving the signal transmission quality of the radio frequency connector.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a stamped radio frequency pluggable connector. Background Technology

[0002] Radio frequency (RF) connectors are passive components used to transmit high-frequency radio frequency signals between different electronic modules or devices. With the rapid development of automotive intelligent technology, the demand for high-frequency RF signal transmission in vehicle electronic systems is becoming increasingly critical. In the intelligent functions of new energy vehicles, such as satellite navigation systems, vehicle networking communication modules, and intelligent driving perception units, signal interaction is achieved through RF connectors. Therefore, the signal transmission quality of RF connectors directly determines the response speed and operational reliability of intelligent functions in new energy vehicles.

[0003] In existing technologies, the outer conductors of mainstream RF connectors are mostly designed as a single piece using a stamping process. In order to meet the assembly and positioning requirements between the outer conductor and the connector shell, the outer conductor is often designed with multiple convex structures along the axial direction. However, the design of multiple convex structures increases the structural complexity of the stamping die, resulting in a significant increase in die development costs. At the same time, the stamped multiple convex structures directly change the internal local cross-sectional dimensions, which disrupts the uniformity of the impedance of the RF signal transmission line. When a high-frequency RF signal flows through the area where the convex is located, the impedance change will cause signal reflection, resulting in a decrease in signal transmission quality, which is a significant technical shortcoming. Utility Model Content

[0004] To improve the signal transmission quality of RF connectors, this application provides a stamped RF pluggable connector.

[0005] The stamped RF pluggable connector provided in this application adopts the following technical solution: A stamped radio frequency pluggable connector includes a sheath and a conductor assembly disposed within the sheath. The conductor assembly includes an inner conductor, an insulator, and an outer conductor arranged from the inside out. The outer conductor has a mating portion, a protruding portion, and a crimping portion arranged axially. An injection molded part is sleeved on the side of the crimping portion near the protruding portion. The injection molded part has a protruding ring coaxial with the protruding portion. Both the protruding ring and the protruding portion abut against the inner sidewall of the sheath.

[0006] By adopting the above technical solution, when manufacturing the outer conductor, the stamping die only needs to stamp out an outer conductor component with a single convex bulge. After the stamped outer conductor component is assembled with the insulator, an injection-molded part made by injection molding is then fitted onto the outer surface of the crimping part. After the conductor assembly is completed, the outer conductor is inserted into the sheath. At this time, the convex ring and the convex bulge abut against the inner wall of the sheath, providing reliable assembly positioning for the conductor assembly within the sheath. The injection molding part reduces the structural complexity of the stamping die for manufacturing the outer conductor and reduces the number of convex bulge structures made by stamping, making the internal cross-sectional dimensions of the outer conductor more uniform and reducing the problem of local cross-sectional abrupt changes caused by multiple convex bulge designs, thereby improving the signal transmission quality.

[0007] Optionally, the insulator is disposed inside the mating portion, and a plurality of abutting strips are uniformly disposed circumferentially on the outer periphery of the insulator. The connection between the protruding portion and the pressing portion forms a stepped groove, and the abutting strips abut against the inner wall of the stepped groove.

[0008] By adopting the above technical solution, the insulator separates the inner conductor and the outer conductor to ensure their electrical insulation. At the same time, when the insulator is inserted into the outer conductor, multiple abutment strips form a multi-point uniform radial support between the insulator and the outer conductor, which can limit the insulator's offset or sway in the radial direction, reduce the transmission line impedance change caused by the relative position change of the components, thereby suppressing signal reflection and further improving the transmission quality of high-frequency radio frequency signals.

[0009] Optionally, the inner conductor includes a center pin and a cable, the cable being disposed within the crimping portion, the center pin including a pin body disposed within the insulator, a plurality of limiting protrusions being disposed on the outer periphery of the pin body, the plurality of limiting protrusions abutting against the inner sidewall of the insulator, one end of the pin body being provided with a plug-in portion for insertion into a mating connector, and the other end forming a crimping area for connection with the cable.

[0010] By adopting the above technical solution, when the connector is used, the insertion part is inserted into the mating connector. This allows the current of the cable to be transmitted along the center pin to the mating connector, realizing power transmission. During operation, multiple limiting protrusions restrict the radial displacement of the center pin inside the insulation body, reducing the possibility of the center pin shifting inside the insulation body under automotive driving conditions. This ensures the connection stability between the two ends of the center pin and the cable and mating connector, reducing the possibility of signal transmission interruption due to loosening of the connection caused by vibration, thereby further improving the signal transmission quality.

[0011] Optionally, the insertion part includes a plurality of spring sheets evenly arranged along the circumference of the needle body, the middle part of the spring sheets is bent toward the inside of the central needle, and each spring sheet is provided with a flared plate at the end away from the needle body.

[0012] By adopting the above technical solution, during the connection with the mating connector, the flared plate guides the pin of the mating connector to insert into the interior of multiple spring plates. At this time, the multiple spring plates abut against the pin under their own elastic force, and apply continuous pressure to the pin to ensure that a tight and stable electrical contact is formed between the center pin and the pin, reducing the possibility of the pin and center pin becoming loose due to vibration, thereby further improving the signal transmission quality.

[0013] Optionally, the end of the cable near the needle body is covered with a shielding layer, and the crimping portion surrounds and crimps the outer periphery of the shielding layer.

[0014] By adopting the above technical solution, the shielding layer wraps around the connection between the cable and the center pin, reducing the impact of external electromagnetic interference on the connection and thus improving the transmission quality of the signal between the cable and the center pin.

[0015] Optionally, the outer surface of the crimping part is provided with a plurality of claws, all of which are bent toward the inner side of the crimping part and abut against the outer periphery of the shielding layer.

[0016] By adopting the above technical solution, after the inner conductor is inserted into the outer conductor, a pressing fixture drives multiple claws to bend inward toward the pressing part. The deformation of the claws generates continuous radial pressure on the shielding layer, so that each claw is tightly attached to the outer periphery of the shielding layer. This results in a stable and tight electrical connection between the shielding layer and the pressing part of the outer conductor, ensuring that the shielding function of the shielding layer remains effective. At the same time, it reduces the possibility of loosening of the connection due to the inner conductor shaking inside the outer conductor, further improving the signal transmission quality.

[0017] Optionally, the sheath is provided with a locking assembly, which includes a mounting plate. The outer surface of the sheath has a mounting groove that mates with the mounting plate. The mounting plate has a first locking plate that abuts against the outer periphery of the protrusion. Both sides of the mounting plate have insertion strips. The sheath has insertion grooves that mate with the insertion strips. One end of the insertion strip near the sheath has a limiting protrusion ball, and the other end has a second locking plate. The inner sidewall of the insertion groove has a locking groove that engages with the limiting protrusion ball. The two second locking plates abut against the surface of the injection molded part.

[0018] By adopting the above technical solution, after the conductor assembly is completed, the worker inserts the connector strip into the connector slot on the sheath. As the connector strip is pushed forward, the limiting convex ball is squeezed by the inner wall of the connector slot and undergoes elastic deformation until it reaches the slot position and resets and locks into the slot, thus realizing the installation of the mounting plate on the sheath. At this time, the first locking plate abuts against the outer periphery of the convex part, and the second locking plates on both sides abut against the surface of the injection molded part. The first locking plate and the second locking plate form axial limiting from the convex part and the sides of the injection molded part, respectively. Together with the radial positioning of the convex part and the convex ring inside the sheath, the conductor assembly is restricted inside the sheath, thereby reducing the possibility of the conductor assembly being displaced or shaken in the axial and radial directions due to vibration, and ensuring that the conductor assembly transmits signals stably.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. This application replaces the stamped convex structure with an injection molded part, which reduces the complexity of the stamping die structure for manufacturing the outer conductor and reduces the number of convex structures made by stamping process, making the internal cross-sectional dimensions of the outer conductor more uniform, reducing the problem of local cross-sectional abrupt changes caused by multi-convex design, thereby improving the signal transmission quality. 2. This application uses claw plates to press and fix the cable. The deformation of the claw plates generates continuous radial pressure on the shielding layer, so that each claw plate is tightly attached to the outer periphery of the shielding layer. This results in a stable and tight electrical connection between the shielding layer and the outer conductor, ensuring that the shielding function of the shielding layer remains effective. At the same time, it reduces the possibility of loosening of the connection due to the inner conductor shaking inside the outer conductor, further improving the signal transmission quality. 3. This application uses a locking assembly to fix the conductor assembly. The first locking plate and the second locking plate form axial limits from the convex part and the injection molded part on both sides, respectively. Together with the radial positioning of the convex part and the convex ring on the inner side of the sheath, the conductor assembly is restricted inside the sheath, thereby reducing the possibility of the conductor assembly being displaced or shaken in the axial and radial directions due to vibration, and ensuring that the conductor assembly transmits signals stably. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this application.

[0021] Figure 2 This is a schematic diagram of the conductor assembly in an embodiment of this application.

[0022] Figure 3 This is a cross-sectional view of the conductor assembly in an embodiment of this application.

[0023] Figure 4 This is an exploded view of the insulator, center pin, and cable in an embodiment of this application.

[0024] Figure 5This is an exploded view of the mounting plate and the sheath in an embodiment of this application.

[0025] Figure 6 This is a cross-sectional view of the mounting plate in an embodiment of this application. Explanation of reference numerals in the attached drawings: 1. Sheath; 101. Mounting groove; 102. Insertion groove; 103. Slot; 2. Outer conductor; 3. Insulator; 31. Abutment strip; 4. Inner conductor; 41. Center pin; 411. Pin body; 4111. Limiting protrusion; 412. Insertion part; 4121. Spring plate; 4122. Flared plate; 413. Crimping area; 42. Cable; 421. Shielding layer; 21. Insertion part; 211. Contact piece; 212. Clamping ball; 22. Protrusion; 23. Crimping part; 231. Claw piece; 24. Injection molded part; 241. Protruding ring; 5. Step groove; 6. Locking assembly; 61. Mounting plate; 63. Insertion strip; 62. First locking plate; 64. Limiting protrusion ball; 65. Second locking plate. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0027] This application discloses a stamped radio frequency pluggable connector.

[0028] Reference Figure 1 and Figure 2 A stamped RF pluggable connector includes a sheath 1. Inside the sheath 1, a conductor assembly for signal transmission is provided. The conductor assembly includes an outer conductor 2, an insulator 3, and an inner conductor 4 arranged sequentially from the outside to the inside. The outer conductor 2 has a mating portion 21, a protruding portion 22, and a crimping portion 23 arranged sequentially along the axial direction. The mating portion 21 is used to connect with a mating connector, and there is only one protruding portion 22 along the axial direction.

[0029] Reference Figure 1 and Figure 2 A molded part 24 is fitted on the side of the crimping part 23 near the convex part 22. A convex ring 241 coaxial with the convex part 22 is integrally formed on the injection molded part 24. The convex part 22 and the convex ring 241 both abut against the inner wall of the sheath 1. When manufacturing the outer conductor 2, the stamping die only needs to stamp out the outer conductor 2 component with a convex part 22. After the stamped outer conductor 2 component is assembled with the insulator 3, the injection molded part 24 made by the injection molding process is fitted on the outer surface of the crimping part 23. After the conductor assembly is completed, the outer conductor 2 is inserted into the sheath 1. At this time, the convex ring 241 and the convex part 22 abut against the inner wall of the sheath 1, providing reliable assembly positioning for the conductor assembly in the sheath 1. The setting of injection molded part 24 reduces the complexity of the stamping die structure for manufacturing outer conductor 2 and reduces the number of convex structures made by stamping process, making the internal cross-sectional dimensions of outer conductor 2 more uniform, reducing the problem of local cross-sectional abrupt changes caused by multi-convex design, thereby improving signal transmission quality.

[0030] Reference Figure 2 and Figure 3 Multiple contact pieces 211 are evenly installed circumferentially on the mating part 21. The contact pieces 211 protrude into the mating part 21. Multiple retaining balls 212 are evenly distributed circumferentially on the inner wall of the port of the mating part 21. The retaining balls 212 are inserted into the retaining ball 212 slots on the mating connector. Through the contact pieces 211 and retaining balls 212, a tight electrical contact is formed with the outer conductor 2 of the mating connector, ensuring the stable transmission of high-frequency radio frequency signals at the mating part.

[0031] Reference Figure 2 and Figure 3 The connection between the protruding part 22 and the crimping part 23 forms a stepped groove 5. The insulator 3 is assembled inside the mating part 21. Multiple abutting strips 31 are evenly installed circumferentially on the outer periphery of the insulator 3. In this embodiment, there are three abutting strips 31. The multiple abutting strips 31 abut against the inner wall of the stepped groove 5. When assembling the insulator 3 and the outer conductor 2, the worker inserts the insulator 3 into the outer conductor 2 from the opening of the mating part 21 until the abutting strips 31 abut against the inner wall of the stepped groove 5. At this time, the multiple abutting strips 31 form multiple points of uniform radial support between the insulator 3 and the outer conductor 2, which restricts the insulator 3 from shifting or shaking in the radial direction, and further improves the transmission quality of high frequency radio frequency signals.

[0032] Reference Figure 3 and Figure 4 The inner conductor 4 includes a center pin 41 and a cable 42. The center pin 41 is used to connect with the pin of the mating connector. The center pin 41 includes a pin body 411 assembled inside the insulator 3. Limiting protrusions are installed on both radially opposite sides of the outer surface of the pin body 411. Both limiting protrusions abut against the inner sidewall of the insulator 3. One end of the pin body 411 is provided with a plug portion 412 for plugging into the mating connector, and the other end forms a crimping area 413 for connecting with the cable 42.

[0033] Reference Figure 3 and Figure 4The end of the cable 42 near the needle body 411 is covered with a shielding layer 421. The shielding layer 421 covers the connection between the cable 42 and the center needle 41, reducing the influence of external electromagnetic interference on the connection and thus improving the transmission quality of the signal between the cable 42 and the center needle 41. Multiple claws 231 are installed on the outer surface of the crimping part 23. In this embodiment, there are four claws 231. All four claws 231 are bent toward the inside of the crimping part 23 and abut against the outer periphery of the shielding layer 421.

[0034] When assembling the inner conductor 4 and the insulator 3, the end of the cable 42 near the shielding layer 421 is connected to the needle body 411. Then, the center needle 41 with the connecting wire is inserted into the insulator 3. After assembly, the limiting protrusion abuts against the inner wall of the insulator 3, restricting the radial displacement of the center needle 41 inside the insulator 3, thereby ensuring the stability of the connection between the inner conductor 4 and the insulator 3. Then, the pressing jig drives multiple claws 231 to bend inward toward the pressing part 23. The deformation of the claws 231 generates continuous radial pressure on the shielding layer 421, so that each claw 231 is tightly attached to the outer periphery of the shielding layer 421, thereby forming a stable and tight electrical connection between the shielding layer 421 and the pressing part 23 of the outer conductor 2.

[0035] Reference Figure 3 and Figure 4 The insertion part 412 includes a plurality of spring pieces 4121 evenly arranged around the pin body 411. In this embodiment, there are two spring pieces 4121. The middle part of each spring piece 4121 is bent toward the center pin 41. The ends of the spring pieces 4121 away from the pin body 411 are integrally formed with a flared plate 4122. The inner diameter of the flared plate 4122 gradually increases in the direction close to the insertion part 21. During the connection with the mating connector, the flared plate 4122 guides the pin of the mating connector to insert into the interior of the plurality of spring pieces 4121. At this time, the plurality of spring pieces 4121 abut against the pin under their own elastic force and apply continuous pressure to the pin to ensure that a tight and stable electrical contact is formed between the center pin 41 and the pin.

[0036] Reference Figure 5 and Figure 6The sheath 1 is provided with a locking assembly 6 for fixing the conductor assembly. The locking assembly 6 includes a mounting plate 61. The outer surface of the sheath 1 is provided with a mounting groove 101 that mates with the mounting plate 61. A first locking plate 62 is fixedly connected to the mounting plate 61. Insertion strips 63 are fixedly connected to both opposite sides of the mounting plate 61. The sheath 1 is provided with an insertion groove 102 that mates with the insertion strip 63. One end of the insertion strip 63 near the sheath 1 is integrally formed with a limiting protrusion ball 64, and the other end is fixedly connected with a second locking plate 65. The inner side wall of the insertion groove 102 is provided with a slot 103 that engages with the limiting protrusion ball 64. When the limiting protrusion ball 64 is engaged in the slot 103, the first locking plate 62 abuts against the outer periphery of the protrusion 22, and the two second locking plates 65 abut against the surface of the injection molded part 24.

[0037] After the conductor assembly is completed, the worker inserts the connector strip 63 into the connector slot 102 on the sheath 1. As the connector strip 63 is pushed forward, the limiting protrusion 64 is squeezed by the inner wall of the connector slot 102 and undergoes elastic deformation until it reaches the slot 103 and is reset and locked into the slot 103, thus realizing the installation of the mounting plate 61 on the sheath 1. At this time, the first locking plate 62 abuts against the outer periphery of the protrusion 22, and the second locking plates 65 on both sides abut against the surface of the injection molded part 24. The first locking plate 62 and the second locking plate 65 form axial limiting from the protrusion 22 and the injection molded part 24 respectively. Together with the radial positioning of the protrusion 22 and the protruding ring 241 inside the sheath 1, the conductor assembly is restricted inside the sheath 1, thereby reducing the possibility of the conductor assembly being displaced or shaken in the axial and radial directions due to vibration, and ensuring that the conductor assembly transmits signals stably.

[0038] The implementation principle of a stamped RF pluggable connector according to an embodiment of this application is as follows: During connector manufacturing, the stamping die only needs to stamp out an outer conductor 2 component with a protruding portion 22. Then, the insulator 3 is inserted into the outer conductor 2 component stamped by the stamping die. Next, the injection molded part 24 is fitted onto the crimping portion 23 of the outer conductor 2 component to obtain the entire outer conductor 2. Subsequently, after the cable 42 is stripped according to the wire opening process, the crimping rings are riveted together by crimping. Then, the center pin 41 is riveted together with the riveted cable 42 by crimping to obtain the entire inner conductor 4. Next, the inner conductor 4, after being combined and riveted, is assembled into the insulator 3 after being combined with the outer conductor 2, thus completing the assembly of the conductor assembly. Finally, the conductor assembly is installed in the sheath 1 and the conductor assembly is fixed by the locking component 6, thus completing the overall assembly of the connector. In this application, the injection molded part 24 is used instead of the protrusion 22, which reduces the complexity of the stamping mold structure for manufacturing the outer conductor 2 and reduces the number of protrusion structures made by the stamping process, making the internal cross-sectional dimensions of the outer conductor 2 more uniform, reducing the problem of local cross-sectional abrupt changes caused by the multi-protrusion design, thereby improving the signal transmission quality.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stamped RF pluggable connector for connection with a mating connector, characterized in that, The device includes a sheath (1) and a conductor assembly disposed within the sheath (1). The conductor assembly includes an inner conductor (4), an insulator (3), and an outer conductor (2) arranged from the inside to the outside. The outer conductor (2) is provided with an insertion portion (21), a protrusion portion (22), and a crimping portion (23) along the axial direction. An injection molded part (24) is sleeved on the side of the crimping portion (23) near the protrusion portion (22). The injection molded part (24) has a protruding ring (241) coaxial with the protrusion portion (22). The protruding ring (241) and the protrusion portion (22) both abut against the inner wall of the sheath (1).

2. The stamped RF pluggable connector according to claim 1, characterized in that, The insulator (3) is disposed inside the mating part (21). Multiple abutting strips (31) are uniformly arranged circumferentially on the outer periphery of the insulator (3). The connection between the convex part (22) and the crimping part (23) forms a stepped groove (5). The abutting strips (31) abut against the inner wall of the stepped groove (5).

3. The stamped RF pluggable connector according to claim 1, characterized in that, The inner conductor (4) includes a center pin (41) and a cable (42). The cable (42) is disposed in the crimping part (23). The center pin (41) includes a pin body (411) disposed in the insulator (3). A plurality of limiting protrusions (4111) are provided on the outer periphery of the pin body (411). The plurality of limiting protrusions (4111) abut against the inner sidewall of the insulator (3). One end of the pin body (411) is provided with a plug-in part (412) for plugging into a mating connector, and the other end forms a crimping area (413) for connecting with the cable (42).

4. A stamped RF pluggable connector according to claim 3, characterized in that, The insertion part (412) includes a plurality of spring pieces (4121) evenly arranged around the needle body (411). The middle part of the spring piece (4121) is bent toward the inside of the center needle (41). Each spring piece (4121) is provided with a flared plate (4122) at the end away from the needle body (411).

5. A stamped RF pluggable connector according to claim 3, characterized in that, The end of the cable (42) near the needle body (411) is covered with a shielding layer (421), and the crimping part (23) surrounds and crimps the outer periphery of the shielding layer (421).

6. A stamped RF pluggable connector according to claim 5, characterized in that, The outer surface of the crimping part (23) is provided with a plurality of claws (231), and the plurality of claws (231) are bent toward the inner side of the crimping part (23) and abut against the outer periphery of the shielding layer (421).

7. A stamped RF pluggable connector according to claim 1, characterized in that, The sheath (1) is provided with a locking assembly (6), which includes a mounting plate (61). The outer surface of the sheath (1) is provided with a mounting groove (101) that mates with the mounting plate (61). The mounting plate (61) is provided with a first locking plate (62), which abuts against the outer periphery of the protrusion (22). Insertion strips (63) are provided on opposite sides of the mounting plate (61). The sheath (1) is provided with a plug groove (102) that mates with the plug strip (63). One end of the plug strip (63) near the sheath (1) is provided with a limiting protrusion ball (64), and the other end is provided with a second locking plate (65). The inner sidewall of the plug groove (102) is provided with a locking groove (103) that engages with the limiting protrusion ball (64). The two second locking plates (65) abut against the surface of the injection molded part (24).

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