Automobile radio frequency connector terminal

Abstract

The utility model discloses an automobile radio frequency connector terminal, which comprises a female terminal and a male terminal matched with the female terminal, each of the male terminal and the female terminal comprises an outer conductor, and the outer conductor comprises a head part, an outer insulation assembly area and a tail part which are connected in sequence; the inner insulator is arranged in the outer conductor; the inner conductor is arranged in the inner insulator; the riveting ring is sleeved on the tail part of the outer conductor; and the outer insulation is sleeved on the outer insulation assembly area of the outer conductor. According to the utility model, the main body of the outer conductor adopts the processing technology of traction and stretching, the rejection rate is low, and the main body is seamless and has good shielding performance. The outer terminal main body and the outer terminal insulation are assembled in an interference mode, and compared with a traditional integrated forming mode, the cost is lower. The valve body is compact in overall structure, optimizes assembling conditions of the radio frequency connector terminal and components thereof, and is widely applied to the field of automobile auxiliary driving.

Description

Technical Field

[0001] This invention relates to the field of automotive radio frequency connection technology, specifically to an automotive radio frequency connector terminal. Background Technology

[0002] Automotive RF connectors are key components in automotive electronic systems used to transmit high-frequency signals (such as radio frequency signals and microwave signals). They are essential components of automotive electrical systems, used for power transmission, signal delivery, and control, such as connecting antennas, sensors, communication modules, navigation systems, and in-vehicle entertainment systems. They are crucial in ensuring the stability, interference resistance, and durability of signal transmission.

[0003] Currently, the two most widely used methods for manufacturing RF connector metal shells are machining and stamping. Machined metal shells have good shielding performance but are expensive, while stamped terminals are cheaper but may have gaps after assembly, affecting shielding performance. Each of the two processing methods has its advantages and disadvantages.

[0004] Automotive RF connector terminals are important components of automotive RF connectors. Automotive RF connector terminals are divided into male and female types, and connections are achieved through plugging and unplugging. Utility Model Content

[0005] This utility model provides an automotive radio frequency connector terminal. The radio frequency connector terminal and its assembly consist of three main components: an outer terminal, an inner terminal, and a rivet ring. The metal body of the outer terminal is manufactured using a traction stretching process, resulting in a seamless body with excellent shielding performance. The rivet ring has a hexagonal crimping shape, providing a larger contact surface with the wire and better retention force.

[0006] An automotive radio frequency connector terminal includes: a female terminal and a male terminal that mates with the female terminal, wherein both the male terminal and the female terminal include:

[0007] The outer conductor includes a head, an outer insulation assembly area, and a tail connected thereto;

[0008] Internal insulation is provided within the outer conductor;

[0009] The inner conductor is disposed within the inner insulation;

[0010] A rivet ring is fitted onto the tail of the outer conductor;

[0011] External insulation is fitted onto the external insulation assembly area of ​​the outer conductor.

[0012] In this utility model, the automotive RF connector terminals are divided into male and female terminals. The male and female terminals also include: a crimping ring, an inner conductor (male or female), inner insulation, an outer conductor (male or female), and outer insulation. The crimping ring is connected to the outer insulation sleeve of the cable. The front section of the inner conductor is a plug-in area, and the rear section is provided with a crimping area. The crimping area and the metal wire of the cable are assembled together by crimping. The inner insulation is cylindrical, and the front end can be assembled with the outer conductor by interference fit. It is also provided with a positioning slot to limit the assembly position of the inner conductor. The outer conductor is stepped cylindrical, with the front end being a plug-in area where the male and female terminals can be mated. The rear end has an inner terminal insertion hole and a crimping ring crimping area. The outer insulation is cylindrical and can be snapped with the outer terminal by interference fit.

[0013] The outer diameters of the head, outer insulation assembly area, and tail of the outer conductor are different. The outer diameter of the outer insulation assembly area is smaller than that of the head and larger than that of the tail.

[0014] The aforementioned rivet ring is a machined part, the inner conductor is a stamped part, and the inner and outer insulations are injection molded parts.

[0015] The outer conductor is a drawn and stretched molded part. It is manufactured using a drawn and stretched process, resulting in a seamless, one-piece design and improved shielding performance.

[0016] The crimping ring is formed and fastened to the tail of the outer conductor by pressing the outer surface. The crimping ring needs to be crimped into a hexagonal shape.

[0017] The female outer conductor has an outwardly inclined guide edge at its front end, and the male outer conductor has an inwardly inclined guide edge at its front end.

[0018] The outer insulation has multiple annular grooves for assembly with automotive RF connectors. The outer insulation and outer conductor are detachable and assembled via interference fit. The outer insulation also features annular protruding rings, with annular grooves formed between them.

[0019] The inner insulation is a stepped cylindrical shape, and its outer surface mates with the inner surface of the outer conductor, allowing it to be embedded within the outer conductor. The inner insulation and outer conductor are detachable and assembled via interference fit.

[0020] The internal insulation includes a connector and a limiting body connected in sequence, wherein the outer diameter of the limiting body is larger than the outer diameter of the connector.

[0021] The limiting body is provided with a positioning slot, which can be fixed in conjunction with the spring sheet structure on the inner conductor.

[0022] The inner conductor includes a connector area, a conductive area, and a crimping area connected thereto. The conductive area is provided with a spring sheet structure, which cooperates with the positioning slot.

[0023] The male terminal has a male pin in the insertion area on its inner conductor, and the female terminal has a female pin in the insertion area on its inner conductor. The male and female terminals have the same basic structure, but the insertion areas of the inner conductors of the male and female terminals have different structures. Insertion and removal are accomplished through the cooperation of the male and female pins.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] In this invention, the outer conductor body is processed using a traction and stretching technique, resulting in a low scrap rate and excellent shielding performance due to its seamless construction. The insulation between the outer terminal body and the outer terminal is achieved through interference fit assembly, which is less costly than traditional one-piece molding.

[0026] The valve body of this utility model has a compact overall structure and optimizes the assembly conditions of the radio frequency connector terminals and their components, making it widely used in the field of automotive driver assistance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the male terminal of the radio frequency connector of this utility model;

[0028] Figure 2 This is a schematic diagram of the female terminal of the radio frequency connector of this utility model;

[0029] Figure 3 This is a schematic diagram of the disassembled structure of the male terminal component of the radio frequency connector of this utility model;

[0030] Figure 4 This is a schematic diagram of the disassembled structure of the female terminal component of the radio frequency connector of this utility model;

[0031] Figure 5 This is a schematic diagram of the male and female inner conductors of the RF connector terminals of this utility model;

[0032] Figure 6 This is a schematic diagram of the internal insulation of the male and female terminals of the radio frequency connector of this utility model;

[0033] Figure 7 This is a schematic diagram of the female outer conductor of the RF connector terminal of this utility model;

[0034] Figure 8 This is a schematic diagram of the male outer conductor of the RF connector terminal of this utility model;

[0035] Figure 9 This is a schematic diagram of the external insulation of the RF connector terminals of this utility model;

[0036] Figure 10 This is a schematic diagram of the hexagonal shape of the RF connector terminal crimping ring after crimping.

[0037] Figure 11 This is a schematic diagram of the stretching step of the present invention;

[0038] Figure 12 This is a schematic diagram of the process of one punching step of the present invention;

[0039] Figure 13 This is a schematic diagram of the secondary stamping step of the present invention;

[0040] Figure 14 This is a magnified view of a portion of transition surface 4.1;

[0041] Figure 15 This is a magnified view of a portion of transition surface 5.1;

[0042] Figure 16 This is a structural diagram of the lower part of the punch of the present invention. Detailed Implementation

[0043] The radio frequency connector terminals and their components of this utility model will be described in further detail below with reference to the accompanying drawings.

[0044] like Figure 1-4 As shown, the automotive RF connector terminals are divided into male and female terminals. Each male and female terminal also includes: a crimping ring 1, an inner conductor 2 (male / female), inner insulation 3, an outer conductor 4 (male / female), and outer insulation 5. The crimping ring 1 is connected to the outer insulation sleeve of the cable (not shown in the cable diagram). The outer conductor 4 includes a head, an outer insulation assembly area, and a tail connected thereto. The inner insulation 3 is disposed within the outer conductor 4. The inner conductor 2 is disposed within the inner insulation 3. The crimping ring 1 is fitted onto the tail of the outer conductor 4. The outer insulation 5 is fitted onto the outer insulation assembly area of ​​the outer conductor 4.

[0045] like Figure 3 , Figure 4 As shown, the outer diameters of the head, outer insulation assembly area, and tail of the outer conductor 4 are different. The outer diameter of the outer insulation assembly area is smaller than that of the head and larger than that of the tail.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the rivet ring 1 is fastened to the tail of the outer conductor 4 by pressing its outer surface. (As indicated...) Figure 10 As shown, the rivet ring 1 needs to be crimped into a hexagon.

[0047] like Figure 3 , Figure 4 As shown, the outer insulation has multiple annular grooves. Figure 3There are two annular grooves in the middle. The outer insulation 5 and the outer conductor 4 are detachable and assembled by interference fit. The outer insulation 5 has three annular protruding rings, and the three protruding rings form two annular grooves.

[0048] like Figure 5 As shown, the inner conductor 2 includes a connector area 11, a conductive area, and a crimping area 12 connected thereto. The conductive area is provided with a spring clip structure 13, which cooperates with the positioning slot 17. The front section of the inner conductor 2 is the connector area 11, and the rear section is provided with the crimping area 12. The crimping area 12 is assembled with the metal wire of the cable by crimping. The middle section of the inner conductor has a spring clip structure 13 that can be engaged with the inner insulation positioning slot 17. The connector area 11 on the inner conductor 2 of the male terminal is provided with a male pin, and the connector area 11 on the inner conductor 2 of the female terminal is provided with a female pin. The basic structures of the male and female terminals are the same, but the structures of the connector areas of the inner conductors of the male and female terminals are different. Insertion and removal are completed through the mutual cooperation of the male and female pins.

[0049] like Figure 3 and Figure 4 As shown, the male and female terminals have the same basic structure, and the male terminal has internal insulation 3 (as shown). Figure 3 The structure of the inner insulation 3 of the inner conductor 2 and the female conductor 4 differs, but both inner insulation 3 include a connecting body and a limiting body connected in sequence. The outer diameter of the limiting body is larger than the outer diameter of the connecting body. The limiting body is provided with a positioning groove 17, which can cooperate with the spring structure 13 on the inner conductor 2 for fixation. The outer surface of the inner insulation 3 mates with the inner surface of the outer conductor 4, and the inner insulation 3 can be embedded in the outer conductor 4. The inner insulation 3 and the outer conductor 4 are detachable and assembled by interference fit.

[0050] like Figure 6 As shown, the inner insulation 3 of the female terminal is a stepped cylindrical shape. It is assembled with the outer conductor 4 by means of interference of the cylindrical structure 14. The tail end is the inner conductor insertion port 15. The tail end is provided with a reinforcing rib structure 16 to prevent structural damage during assembly. It also has a positioning slot 17 to engage with the inner conductor spring structure 13.

[0051] like Figure 7 and Figure 8 As shown, the outer conductor 4 is a stepped cylinder with a connector area 18 at the front end, where male and female terminals can be mated. The middle section is an outer insulation assembly area 19, and the end has an inner terminal insertion hole 20 and a crimping ring crimping area 21. As shown in 7, the female outer conductor has an outwardly inclined guide edge at its front end. As shown in 8, the male outer conductor has an inwardly inclined guide edge at its front end.

[0052] like Figure 9 As shown, the outer insulation 5 is cylindrical with an internal reinforcing rib structure 22, which can be clamped to the outer terminal through interference.

[0053] The crimping ring 1 is a machined part, the inner conductor 2 is a stamped part, and the inner insulation 3 and outer insulation 5 are injection molded parts. The outer conductor 4 is a stretch-formed part. The outer conductor 4 is manufactured through a stretching process, resulting in a seamless, one-piece design with better shielding performance.

[0054] like Figures 11 to 15 As shown, the method for manufacturing the outer conductor 4 includes the following steps:

[0055] (1) Material preparation: Prepare metal sheets;

[0056] (2) Stamping: The metal sheet is placed on a stamping device, and the stamping die stretches and shapes it into a cylindrical structure with an open top and a closed bottom. This cylindrical structure is the first semi-finished product. Figure 11 As shown;

[0057] (3) Stretching: The fixture holds the first semi-finished product, and the conveyor belt sends the fixture to the stamping die for multiple stampings. The lower end of the first semi-finished product is then stretched and narrowed to form the second semi-finished product, which has an outer diameter of Φ1. Figure 11 As shown;

[0058] (4) Single punching: The second semi-finished product is further punched several times using a stamping die. Through the cooperation of the punch and ejector pin of the stamping die, the second semi-finished product is punched out into a second cylindrical structure, forming the third semi-finished product, such as... Figure 12 As shown, the outer diameter of the upper half is Φ2, and the outer diameter of the lower half is Φ3, where Φ3 is smaller than Φ2.

[0059] (5) Secondary stamping: The third semi-finished product is further stamped several times using a stamping die. Through the cooperation of the punch and ejector pin of the stamping die, the lower half of the third semi-finished product is punched out to form a third cylindrical structure, and the excess structure is removed to form the fourth semi-finished product, such as... Figure 13 As shown, the outer diameter of the upper part is Φ4, the outer diameter of the middle part is Φ5, and the outer diameter of the lower part is Φ6, where Φ6 is less than Φ5 and less than Φ4.

[0060] like Figure 13 and Figure 14 As shown, the lower end of the first cylindrical structure and the upper end of the second cylindrical structure are connected by a transition surface (such as...). Figure 13 and 14 (Point A in the middle) connects, the transition surface height is H1, and the transition surface is either a slope or an arc surface.

[0061] like Figure 13 and Figure 15 As shown, the lower end of the second cylindrical structure and the upper end of the third cylindrical structure are connected by a transition surface (such as...). Figure 13 and 15 The connection at point B has a transition surface height of H2, and the transition surface is either a slope or an arc.

[0062] (6) Blanking: The terminal housing is punched out using a stamping die, such as... Figure 16 As shown.

Claims

1. An automotive radio frequency connector terminal, comprising: A female terminal and a male terminal that mates with the female terminal, characterized in that both the male terminal and the female terminal comprise: The outer conductor includes a head, an outer insulation assembly area, and a tail connected thereto; Internal insulation is provided within the outer conductor; The inner conductor is disposed within the inner insulation; A rivet ring is fitted onto the tail of the outer conductor; External insulation is fitted onto the external insulation assembly area of ​​the outer conductor.

2. The automotive radio frequency connector terminal according to claim 1, characterized in that, The outer diameters of the head, outer insulation assembly area, and tail of the outer conductor are different. The outer diameter of the outer insulation assembly area is smaller than that of the head and larger than that of the tail.

3. The automotive radio frequency connector terminal according to claim 1, characterized in that, The outer conductor is a stretch-formed part.

4. The automotive radio frequency connector terminal according to claim 1, characterized in that, The rivet ring is formed and fastened to the tail of the outer conductor by pressing the outer surface.

5. The automotive radio frequency connector terminal according to claim 1, characterized in that, The outer insulation is provided with multiple annular grooves.

6. The automotive radio frequency connector terminal according to claim 1, characterized in that, The inner insulation is a stepped cylindrical shape, and the outer surface of the inner insulation mates with the inner surface of the outer conductor.

7. The automotive radio frequency connector terminal according to claim 1, characterized in that, The internal insulation includes a connector and a limiting body connected in sequence, wherein the outer diameter of the limiting body is larger than the outer diameter of the connector.

8. The automotive radio frequency connector terminal according to claim 7, characterized in that, The limiting body is provided with a positioning slot.

9. The automotive radio frequency connector terminal according to claim 8, characterized in that, The inner conductor includes a connector area, a conductive area, and a crimping area connected thereto. The conductive area is provided with a spring sheet structure, which cooperates with the positioning slot.

10. The automotive radio frequency connector terminal according to claim 9, characterized in that, The male terminal has a male pin in the insertion area on the inner conductor, and the female terminal has a female pin in the insertion area on the inner conductor.

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