Small RF connectors

By covering the shell and sleeve with a conductive organic layer and a mold-formed organic layer, the high cost and structural strength problems of traditional RF connectors are solved, and a low-cost, high-strength RF connector is realized, which is suitable for transportation vehicles such as vehicles and buses.

CN114914759BActive Publication Date: 2025-09-12DACHANG ELECTRONICS TECH SUZHOU CO LTD
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Patent Information

Application Number
CN202110624744.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-02-08
Filing Date
2021-06-04
Publication Date
2025-09-12
Estimated Expiration
2041-06-04

AI Technical Summary

Technical Problem

Traditional RF connectors use zinc alloy materials, which results in high costs and insufficient assembly tightness, affecting structural strength and failing to meet the connection requirements of transport vehicles.

Method used

The housing and sleeve are covered with a conductive organic layer, which is combined with a molded organic layer and a metal cover to increase structural strength and achieve electromagnetic shielding, complying with Mini FAKRA and USCAR-2 standards.

Benefits of technology

It reduces production costs, improves structural strength and electromagnetic shielding effect, and is suitable for the connection needs of transportation vehicles such as vehicles and buses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a small radio frequency connector comprising a plastic core and a wire end module. The plastic core forms a housing, a first opening, and a second opening. The wire end module comprises a first wire end assembly and a second wire end assembly. The first wire end assembly is coupled to the second wire end assembly. The first wire end assembly further comprises a first terminal, a first housing, a first sleeve, and a first conductive organic layer. The first housing encloses the first terminal, and the first conductive organic layer encloses the first housing. The second wire end assembly further comprises a second terminal, a second housing, a second sleeve, and a second conductive organic layer. The second housing encloses the second terminal, and the second conductive organic layer encloses the second housing.
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Description

Technical field

[0001] The present invention relates to the technical field of connectors, in particular to a small radio frequency connector. [Background Technology]

[0002] Traditional RF connectors are installed on transport carriers and are in the form of coaxial cables or wire-to-board connectors.

[0003] Traditional RF connectors use upper and lower covers made of zinc alloy to cover the terminals set inside the insulator. The use of zinc alloy material is relatively costly, and since the upper and lower covers are separate components pre-cast from the zinc alloy material, the tightness or coverage between the upper cover, insulator and lower cover cannot be guaranteed during the assembly process, which also poses problems with the structural strength of the RF connector.

[0004] In view of this, the present invention proposes a small radio frequency connector to solve the problems caused by traditional connectors or problems that cannot be solved. [Summary of the invention]

[0005] A first object of the present invention is to provide a small radio frequency connector, wherein a conductive organic layer is formed on a housing and a sleeve to eliminate static interference and prevent electronic components from being affected by electromagnetic interference.

[0006] A second object of the present invention is to provide at least two first organic layers and a second organic layer for assembly based on the aforementioned small RF connector, which are molded to completely cover the housing and the sleeve to increase the strength of the structure.

[0007] A third objective of the present invention is to provide an organic layer electrically connected to a metal cover based on the aforementioned small RF connector to achieve electromagnetic shielding.

[0008] A fourth object of the present invention is to provide the aforementioned small RF connector in accordance with the standards of mini fakra, fakra and USCAR-2 so as to be suitable for transportation vehicles such as vehicles and buses.

[0009] A fifth objective of the present invention is that, according to the above-mentioned small RF connector, the sleeve forms a stop ring to fix the sleeve body in the accommodating space.

[0010] A sixth objective of the present invention is to coat at least a portion of the metal cover with a plastic core in the aforementioned small RF connector to significantly increase the structural strength.

[0011] To achieve the above and other objectives, the present invention provides a small RF connector capable of connecting an external connector to a printed circuit board. The small RF connector includes a rubber core and a wire end module. The rubber core forms a storage space, a first opening, and a second opening. The first opening and the second opening are formed on corresponding sides. The first opening allows the external connector to enter or exit the storage space. The wire end module also includes a first wire end assembly and a second wire end assembly. The first wire end assembly is combined with the second wire end assembly. The first wire end assembly includes a first terminal, a first shell, a first sleeve, and a first conductive organic layer. The first terminal also includes a first contact portion, a first connecting portion, and a third contact portion. The first contact portion can connect to the external connector and the third contact portion can connect to the printed circuit board. The first connecting portion connects the first contact portion and the third contact portion. The first shell covers the first connecting portion and exposes the first contact portion and the third contact portion. The first sleeve is combined with the first shell positioned on the first contact portion to cover the first contact portion, and the first sleeve is arranged in the storage space through the second opening. The first conductive organic layer covers the first shell. The second terminal assembly further includes a second terminal, a second housing, a second sleeve, and a second conductive organic layer. The second terminal includes a second contact portion, a second connecting portion, and a fourth contact portion. The second contact portion is capable of connecting to an external connector, and the fourth contact portion is capable of connecting to a printed circuit board. The second connecting portion connects the second contact portion and the fourth contact portion. The second housing encloses the second connecting portion, exposing the second and fourth contact portions. The second sleeve engages with the second housing positioned on the second contact portion to enclose the second contact portion, and the second sleeve is disposed in the accommodating space via the second opening. The second conductive organic layer encloses the second housing.

[0012] The specific technology adopted by the present invention will be further described through the following embodiments and accompanying drawings.

Brief Description of the Drawings

[0013] Figure 1 FIG. 1 is a perspective schematic diagram of a small radio frequency connector according to an embodiment of the present invention.

[0014] Figure 2 This invention is described Figure 1 Exploded diagram of a small RF connector.

[0015] Figure 3 This invention is described Figure 2 Schematic diagram of the combination of the shell and the conductive organic layer.

[0016] Figure 4 This invention is described Figure 1 Schematic diagram of the combination of the shell, sleeve and conductive organic layer.

[0017] Figure 5 This invention is described Figure 1Schematic cross-section of a small RF connector.

[0018] Description of main component symbols:

[0019] 10 Small RF Connectors

[0020] 12 plastic core

[0021] 122 First Opening

[0022] 124 Second Opening

[0023] 126 The Third Opening

[0024] 128 slots

[0025] 14-line end module

[0026] 142 First line end assembly

[0027] 1422 First Terminal

[0028] 14222 First contact

[0029] 14224 First connection

[0030] 14226 Third contact

[0031] 1424 First Shell

[0032] 14242 Anti-slip rib

[0033] 1426 First Casing

[0034] 14262 Stop ring

[0035] 1428 first conductive organic layer

[0036] 14282 snap block

[0037] 14284 First positioning piece

[0038] 144 Second line end assembly

[0039] 1442 Second terminal

[0040] 14422 Second contact

[0041] 14424 Second connection

[0042] 14426 Fourth contact

[0043] 1444 Second Shell

[0044] 14442 Anti-slip rib

[0045] 1446 Second Casing

[0046] 14462 Stop ring

[0047] 1448 second conductive organic layer

[0048] 14482 snap block

[0049] 14484 Second positioning piece

[0050] 14410, 14412 gaps

[0051] 16 Metal cover

[0052] 162 welding pins

[0053] 164 card slots

[0054] SP storage space [Specific implementation method]

[0055] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail with reference to the following specific embodiments and the accompanying drawings.

[0056] Throughout the present invention, the terms "a" or "an" are used to describe units, elements, and components described herein. This is for convenience only and to provide a general understanding of the scope of the present invention. Therefore, unless otherwise apparent, such descriptions should be understood to include one, at least one, and the singular also includes the plural.

[0057] Throughout this disclosure, the terms "comprise," "include," "have," "contain," or any similar terms are intended to cover a non-exclusive inclusion. For example, a component, structure, article, or device comprising multiple elements is not limited to only those elements listed herein but may include additional elements not expressly listed but customarily inherent to such component, structure, article, or device. Furthermore, unless expressly stated to the contrary, the term "or" refers to an inclusive or and not to an exclusive or.

[0058] Please refer to Figure 1 , is a three-dimensional schematic diagram of a small radio frequency connector according to an embodiment of the present invention. Figure 1 The miniature RF connector 10 is capable of connecting an external connector (not shown) to a printed circuit board (PCB) (not shown). The miniature RF connector 10 may comply with Mini FAKRA, FAKRA, USCAR-2, or other connector standards. The miniature RF connector 10 may be used in transportation vehicles, such as automobiles and buses.

[0059] The miniature RF connector 10 includes a plastic core 12 and a wire end module 14. In another embodiment, the miniature RF connector 10 may further include a metal cover 16, which is an optional component. The metal cover 16 also forms solder pins 162 and a plurality of slots 164.

[0060] For reference Figure 2 , is to illustrate the present invention Figure 1 Exploded diagram of a small RF connector. Figure 2 In the embodiment, the rubber core 12 defines a receiving space SP, a first opening 122, and a second opening 124. The first opening 122 and the second opening 124 are formed on opposite sides of the receiving space SP, allowing the receiving space SP to penetrate the rubber core 12. Furthermore, the first opening 122 and the second opening 124 are formed on corresponding sides, namely, in the obliquely lower left direction (first opening 122) and the obliquely upper right direction (second opening 124) in this embodiment. The first opening 122 allows an external connector to enter or exit the receiving space SP. In other embodiments, the rubber core 12 further includes a third opening 126 for engaging with a protrusion (not shown) of an external connector to snap the external connector to the rubber core 12. Furthermore, the rubber core 12, located in the receiving space SP, defines a groove 128 to position the external connector within the receiving space SP. In other embodiments, the groove 128 can be replaced by a rib (not shown), that is, a rib is formed on the rubber core 12. In this embodiment, the plastic core 12 covers at least a portion of the metal cover 16 .

[0061] The terminal module 14 further includes a first terminal component 142 and a second terminal component 144. In this embodiment, the first terminal component 142 is combined with the second terminal component 144, and the aforementioned combination can be fixed by means of snapping, adhesion, locking, etc.

[0062] The first terminal assembly 142 includes a first terminal 1422, a first housing 1424, a first sleeve 1426, and a first conductive organic layer 1428. In this embodiment, the number of first terminals 1422 and first housing 1424 is two. In other embodiments, the number of first terminals 1422 and first housing 1424 may be less than or greater than two.

[0063] For reference Figure 5 , is to illustrate the present invention Figure 1 A cross-sectional diagram of a small RF connector. Figure 5In the embodiment, the first terminal 1422 has a first contact portion 14222, a first connecting portion 14224, and a third contact portion 14226. The first contact portion 14222 can be connected to an external connector, and the third contact portion 14226 can be connected to a printed circuit board. The first connecting portion 14224 connects the first contact portion 14222 and the third contact portion 14226. In this embodiment, the shape of the first terminal 1422 is L-shaped.

[0064] Back to Figure 3 , is to illustrate the present invention Figure 2 Schematic diagram of the combination of the shell and the conductive organic layer. Figure 3 In the embodiment, after the first terminal 1422 is inserted into the first shell 1424, the first shell 1424 is covered by a mold so that the first shell 1424 covers the first connecting portion 14224 and exposes the first contact portion 14222 and the third contact portion 14226. In this embodiment, the material of the first shell 1424 can be an insulating material, such as plastic. The first shell 1424 can be formed by injection molding or mold infusion, and can be an integrally molded component or composed of multiple separate components. In addition, a hollow space is formed in the first shell 1424 to accommodate the first connecting portion 14224 of the first terminal 1422, and the front edge portion of the first shell 1424 is set to a cylindrical shape to match the first sleeve 1426 with a cylindrical hollow appearance, which can be referred to together. Figure 4 , is to illustrate the present invention Figure 2 In another embodiment, the first housing 1424 may form anti-slip ribs 14242 to connect the first sleeve 1426 and the first housing 1424, thereby increasing the strength of the structure.

[0065] In addition, the first conductive organic layer 1428 covers the first housing 1424. For example, the first conductive organic layer 1428 can be formed by injection molding or mold infusion. In this embodiment, the material of the first conductive organic layer 1428 can be conductive plastic or conductive polymer. This can eliminate the damage caused by static electricity to the small RF connector 10. Specifically, the first conductive organic layer 1428 electrically contacts the first sleeve 1426 and the metal cover 16, providing grounding or electromagnetic shielding. This effect can further improve crosstalk and EMI (electromagnetic interference) issues during high-speed transmission. Furthermore, the first conductive organic layer 1428 can form a snap block 14282 and a first positioning member 14284. The snap block 14282 is arranged corresponding to the slot 164. By combining the snap block 14282 with the slot 164, the metal cover 16 is snapped onto the first conductive organic layer 1428. The metal cover 18 can be electromagnetically shielded by the conductive first conductive organic layer 1428, thereby preventing static electricity or electromagnetic interference.

[0066] The second terminal assembly 144 further includes a second terminal 1442, a second housing 1444, a second sleeve 1446, and a second conductive organic layer 1448. The second terminal 1442, the second housing 1444, the second sleeve 1446, and the second conductive organic layer 1448 correspond to the description of the first terminal 1422, the first housing 1424, the first sleeve 1426, and the first conductive organic layer 1428 of the first terminal assembly 142, and are not further described here.

[0067] Second terminal 1442 includes a second contact portion 14422, a second connecting portion 14424, and a fourth contact portion 14426. Second connecting portion 14424 connects second contact portion 14422 and fourth contact portion 14426. The description of second terminal 1442 is the same as that of first terminal 142 and is not repeated here. Second contact portion 14422 can connect to an external connector, and fourth contact portion 14426 can connect to a printed circuit board.

[0068] The second sleeve 1446 is coupled to the second housing 1444 at the second contact portion 14422 to cover the second contact portion 14422, and the second sleeve 1446 is disposed in the accommodation space SP via the second opening 124. In another embodiment, the second housing 1444 may be formed with anti-slip ribs 14442 to couple the second sleeve 1446 and the second housing 1444, thereby increasing the strength of the structure.

[0069] The second conductive organic layer 1448 covers the second shell 1444. In this embodiment, the second conductive organic layer 1448 covers the second shell 1444 in an L-shaped structure, and the second conductive organic layer 1448 also forms a second positioning member 14484 (e.g., a positioning groove) corresponding to the first positioning member 14284 (e.g., a positioning post) to combine the first conductive organic layer 1428 and the second conductive organic layer 1448. Figure 5 The second conductive organic layer 1448 also forms notches 14410 and 14412. After the first conductive organic layer 1428 and the second conductive organic layer 1448 are combined, the notches 14410 and 14412 can block the first terminal 1422 and the second terminal 1442 from electrically connecting the first conductive organic layer 1428 and the second conductive organic layer 1428. Furthermore, the second conductive organic layer 1428 can form a snap block 14482. The snap block 14482 is arranged corresponding to the slot 164. By combining the snap block 14482 and the slot 164, the metal cover 16 is snapped onto the second conductive organic layer 1448. In addition, the second conductive organic layer 1448 electrically contacts the second sleeve 1446 and the metal cover 16 for grounding or electromagnetic shielding. This effect further improves the problems of high-speed transmission crosstalk and EMI (electromagnetic interference).

[0070] Also, reference Figure 2and 5 The first sleeve 1426 forms a stop ring 14262 and the second sleeve 1446 forms a stop ring 14462. By assembling the core 12, the first conductive organic layer 1428, and the second conductive organic layer 1448, the first sleeve 1426 and the second sleeve 1446 are fixed in the accommodation space SP.

[0071] Although the embodiments of the present invention are disclosed as described above, they are not intended to limit the present invention. Anyone skilled in the relevant art may make slight changes to the shapes, structures, features, methods, and quantities described in the claims of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the scope of the claims attached to this specification.

Claims

1. A small radio frequency connector for connecting an external connector to a printed circuit board, characterized in that: The small radio frequency connector comprises: A plastic core, forming an accommodating space, a first opening, and a second opening, wherein the first opening and the second opening are formed on corresponding sides, and the first opening is used for the external connector to enter or exit the accommodating space; The terminal module comprises a first terminal component and a second terminal component, wherein the first terminal component is combined with the second terminal component, and the first terminal component and the second terminal component further comprise: The first terminal assembly further comprises a first terminal, a first housing, a first sleeve, and a first conductive organic layer. The first terminal comprises a first contact portion, a first connecting portion, and a third contact portion. The first contact portion is for connecting to the external connector and the third contact portion is for connecting to the printed circuit board. The first connecting portion connects the first contact portion and the third contact portion. The first housing covers the first connecting portion and exposes the first contact portion and the third contact portion. The first sleeve is combined with the first housing positioned at the first contact portion to cover the first contact portion. The first sleeve is disposed in the accommodating space via the second opening. The first conductive organic layer covers the first housing. as well as The second terminal assembly further comprises a second terminal, a second housing, a second sleeve and a second conductive organic layer, wherein the second terminal comprises a second contact portion, a second connecting portion and a fourth contact portion, wherein the second contact portion is for connecting to the external connector and the fourth contact portion is for connecting to the printed circuit board, the second connecting portion connects the second contact portion and the fourth contact portion, the second housing covers the second connecting portion and exposes the second contact portion and the fourth contact portion, the second sleeve is combined with the second housing positioned at the second contact portion to cover the second contact portion, and the second sleeve is disposed in the accommodating space via the second opening, and the second conductive organic layer covers the second housing, and a metal cover covering the first conductive organic layer and the second conductive organic layer, The first conductive organic layer and the second conductive organic layer are made of conductive plastic or conductive polymer respectively, and the first sleeve, the second sleeve and the metal cover are electrically contacted through the first conductive organic layer and the second conductive organic layer for grounding or electromagnetic shielding.

2. The small radio frequency connector according to claim 1, characterized in that: The first conductive organic layer also forms a first positioning member.

3. The small radio frequency connector according to claim 2, characterized in that: The second conductive organic layer covers the second shell in an L-shaped structure, and the second conductive organic layer also forms a second positioning member. The second positioning member is arranged corresponding to the first positioning member to combine the first conductive organic layer and the second conductive organic layer.

4. The small radio frequency connector according to claim 3, characterized in that: The first positioning member is a positioning column and the second positioning member is a positioning groove.

5. The small radio frequency connector according to claim 1, wherein: The second shell further forms a plurality of gaps to prevent the first terminal and the second terminal from electrically connecting the first conductive organic layer and the second conductive organic layer.

6. The small radio frequency connector according to claim 1, characterized in that: The metal cover further forms welding feet and a plurality of card slots, and the first conductive organic layer and the second conductive organic layer respectively form snap blocks, the welding feet are for welding on the printed circuit board, and the plurality of card slots respectively snap the first conductive organic layer and the second conductive organic layer.

7. The small radio frequency connector according to claim 1, characterized in that: The plastic core covers at least a portion of the metal cover.

8. The small radio frequency connector according to claim 1, wherein: The first sleeve and the second sleeve respectively form a stop ring, and the first sleeve and the second sleeve are fixed in the accommodating space by assembling the rubber core, the first conductive organic layer, and the second conductive organic layer.

9. The small radio frequency connector according to claim 1, wherein: The first shell and the second shell respectively form anti-slip ribs to combine the first sleeve and the first shell and to combine the second shell and the second sleeve.

Citation Information

Patent Citations

  • Miniature radio frequency connector

    CN214899178U