An outer conductor contact and radio frequency connector

By designing the outer conductor contact with a housing and a flexible cantilever structure, the problem of wear and deformation of RF connectors during long-term use was solved, improving the reliability and stability of the contact, reducing precision requirements, and enhancing contact stability.

CN224472751UActive Publication Date: 2026-07-07KUNSHAN KTA COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN KTA COMM TECH CO LTD
Filing Date
2024-11-21
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The outer conductor contacts of existing RF connectors are prone to wear and deformation during long-term use or insertion and removal, which leads to a decrease in contact performance and affects reliability and stability.

Method used

Design an external conductor contact, including a housing, an elastic cantilever, and an elastic contact portion. The elastic cantilever consists of a support portion, a transition portion, and an extension portion. The support portion is connected to the housing, the transition portion is bent and extended, the elastic contact portion protrudes and contacts the inner wall of the housing, and the extension portion is within the projection of the housing, thereby reducing friction and enhancing stability.

Benefits of technology

It improves the reliability and stability of the outer conductor contact, reduces the precision requirements, enhances the contact stability between the elastic contact and the fitting, and reduces friction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an outer conductor contact piece and radio frequency connector belong to electric connector technical field, including the casing, set up in the elastic suspension arm of casing and elastic contact part, the elastic suspension arm includes the support portion, transition portion and extension portion connected in proper order, the support portion is connected with the casing, the transition portion is from the support portion and is bent and extends to the direction of deviating from the casing, the extension portion is connected with the transition portion, the elastic contact part is connected with the support portion and the extension portion respectively, the elastic contact part protrudes to the direction of deviating from the casing, the projection of the elastic contact part along the support portion is at least partially located outside the support portion in the direction of approaching the casing, the projection of the extension portion along the support portion is at least partially located in the support portion in the direction of approaching the casing. The utility model reaches the technical effect of improving reliability, improving stability and can reduce the requirement of precision.
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Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology, and specifically relates to an outer conductor contact and a radio frequency connector. Background Technology

[0002] The performance of the outer conductor contacts directly affects the signal transmission quality and stability of RF connectors. With the increasing prevalence of electronic devices and rising performance requirements, higher demands are being placed on the contact performance, stability, and durability of RF connectors. Currently, RF connector technology typically employs cylindrical sleeves with high-precision dimensions or structures with a small number of elastic elements. However, during prolonged use or insertion / removal, wear and deformation can easily occur, leading to a decline in contact performance and affecting the reliability and stability of contact continuity.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is the problem of low reliability, poor stability, and high precision requirements.

[0005] To solve the above-mentioned technical problems, this utility model provides an external conductor contact, which includes: a housing, an elastic cantilever disposed in the housing, and an elastic contact portion. The elastic cantilever includes a support portion, a transition portion, and an extension portion connected in sequence. The support portion is connected to the housing. The transition portion bends and extends from the support portion in a direction away from the housing. The extension portion is connected to the transition portion. The elastic contact portion is connected to the support portion and the extension portion respectively. The elastic contact portion protrudes in a direction away from the inside of the housing. The projection of the elastic contact portion on the support portion along the direction of the support portion near the housing is at least partially located outside the support portion. The projection of the extension portion on the support portion along the direction of the support portion near the housing is at least partially located inside the support portion.

[0006] Optionally, the number of elastic cantilever arms and the number of elastic contact parts are both multiple, and the multiple elastic cantilever arms and the multiple elastic contact parts are distributed in a one-to-one correspondence, and the multiple elastic cantilever arms are distributed at intervals.

[0007] Optionally, the elastic contact portion includes two support surfaces and a protruding surface connected to the two support surfaces respectively. The two support surfaces are connected to the support portion and the extension portion respectively. The projection of the protruding surface on the support portion along the direction of the support portion near the housing is at least partially located outside the support portion.

[0008] Optionally, the raised surfaces of the plurality of elastic contacts are located in the same plane, and the plane is perpendicular to the centerline of the housing.

[0009] Optionally, the plurality of elastic contact portions include a plurality of first elastic contact portions and a plurality of second elastic contact portions, and the plurality of elastic cantilever portions include a plurality of first elastic cantilever portions and a plurality of second elastic cantilever portions. The plurality of first elastic cantilever portions and the plurality of second elastic cantilever portions are arranged alternately at intervals. The plurality of first elastic contact portions are distributed in a one-to-one correspondence with the plurality of first elastic cantilever portions, and the plurality of second elastic contact portions are distributed in a one-to-one correspondence with the plurality of second elastic cantilever portions. A second elastic cantilever portion is arranged between two adjacent first elastic cantilever portions, and the distance between the extension portion of the first elastic cantilever portion and the housing is smaller than the distance between the extension portion of the second elastic cantilever portion and the housing.

[0010] Optionally, the first protruding surfaces of the plurality of first elastic contact portions are located in a first plane, and the second protruding surfaces of the plurality of second elastic contact portions are located in a second plane. The first plane and the second plane are respectively perpendicular to the centerline of the housing, and the first plane is located between the second plane and the housing.

[0011] Optionally, the housing is cylindrical, the outer wall of the support portion and the outer wall of the extension portion are arc-shaped surfaces, and the center line of the outer wall of the support portion and the center line of the outer wall of the extension portion are parallel to the center line of the housing.

[0012] Optionally, the outer walls of the plurality of support portions enclose to form a first receiving cavity, the plurality of transition portions enclose to form a second receiving cavity, and the plurality of extension portions enclose to form a third receiving cavity. The interior of the housing, the first receiving cavity, the second receiving cavity, and the third receiving cavity are sequentially connected. The outer diameter of the first receiving cavity is equal to the outer diameter of the housing, and the outer diameter of the third receiving cavity is smaller than the outer diameter of the first receiving cavity.

[0013] Optionally, a through groove is provided on the elastic cantilever, the through groove extending from the support portion through the transition portion to the extension portion, and the through groove is directly opposite the elastic contact portion.

[0014] Optionally, the number of elastic contact portions is two, and the transition portion is located between the two elastic contact portions.

[0015] According to another aspect of the present invention, the present invention also provides an RF connector, the RF connector including the aforementioned outer conductor contact, and further including a mating part, wherein the elastic contact portion contacts the inner wall of the mating part.

[0016] Beneficial effects:

[0017] This invention provides an external conductor contact element, which is mounted on a housing via an elastic cantilever. The elastic cantilever comprises a support portion, a transition portion, and an extension portion connected sequentially. The support portion is connected to the housing, and the transition portion bends and extends from the support portion in a direction away from the housing. The extension portion is connected to the transition portion. The elastic contact portion is connected to both the support portion and the extension portion, and protrudes in a direction away from the interior of the housing. The projection of the elastic contact portion onto the support portion along the direction of the support portion near the housing is at least partially located outside the support portion, while the projection of the extension portion onto the support portion along the direction of the support portion near the housing is at least partially located inside the support portion. This design allows the housing to support the flexible cantilever, with the support portion of the cantilever directly connected to the housing. The elastic contact portions, connected to both the support and extension portions, protrude away from the interior of the housing, allowing them to elastically contact the inner wall of the fitting. Along the direction from the support portion towards the housing, the projection of the elastic contact portion onto the support portion is at least partially outside the support portion, while the projection of the extension portion onto the support portion is at least partially inside the support portion. This ensures that the elastic contact portion protrudes from the outside of the support portion and contacts the inner wall of the fitting, while neither the extension nor the support portion of the flexible cantilever contacts the inner wall of the fitting. This reduces friction between the flexible cantilever and the fitting, while enhancing the stability of the contact between the elastic contact portion and the fitting. This achieves the technical effects of improved reliability, enhanced stability, and reduced precision requirements. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an external conductor contact provided in an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the structure of a first embodiment of an external conductor contact provided by this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of an elastic contact portion in an external conductor contact element provided for an embodiment of the present utility model.

[0022] Figure 4 This is a schematic diagram of a second embodiment of an external conductor contact provided by this utility model.

[0023] Figure 5 This is a schematic diagram of a third embodiment of an external conductor contact provided by this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the elastic contact portion and the fitting in a radio frequency connector provided for an embodiment of the present utility model.

[0025] Figure 7 This is a schematic diagram of the structure of an accessory in a radio frequency connector provided in an embodiment of the present utility model.

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] 1—Housing, 11—Centerline; 2—Elastic cantilever, 21—Support, 211—First receiving cavity, 22—Transition, 221—Second receiving cavity, 23—Extension, 231—Third receiving cavity, 241—First elastic cantilever, 242—Second elastic cantilever, 25—Through groove; 3—Elastic contact, 31—Support surface, 32—Protruding surface; 4—First elastic contact, 41—First protruding surface; 5—Second elastic contact, 51—Second protruding surface; 6—Matching fitting. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0031] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0032] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.

[0033] This utility model provides an external conductor contact element according to Embodiment 1. Please refer to [link to related documentation]. Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the structure of an external conductor contact provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of one embodiment of the first type of external conductor contact provided by this utility model. Figure 3 This is a schematic diagram of the structure of the elastic contact portion 3 in an external conductor contact element provided in an embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of a second embodiment of an external conductor contact provided by this utility model. Figure 5This is a schematic diagram of a third embodiment of an external conductor contact provided by this utility model. The external conductor contact provided by this utility model includes a housing 1, an elastic cantilever 2, and an elastic contact portion 3. The elastic cantilever 2 is disposed on the housing 1 and includes a support portion 21, a transition portion 22, and an extension portion 23. The support portion 21, transition portion 22, and extension portion 23 are connected sequentially. The support portion 21 is connected to the housing 1. The transition portion 22 bends and extends from the support portion 21 in a direction away from the housing 1. The extension portion 23 is connected to the transition portion 22. The elastic contact portion 3 is connected to both the support portion 21 and the extension portion 23. The elastic contact portion 3 protrudes in a direction away from the interior of the housing 1. The projection of the elastic contact portion 3 along the direction of the support portion 21 near the housing 1 onto the support portion 21 is at least partially located outside the support portion 21. The projection of the extension portion 23 along the direction of the support portion 21 near the housing 1 onto the support portion 21 is at least partially located inside the support portion 21.

[0034] The shell 1, support 21, transition 22, and extension 23 can be integrally formed. The elastic contact portion 3, when projected onto the support 21 along the direction of the support 21 near the shell 1, is at least partially located outside the support 21. This means that, when viewed from the direction of the support 21 near the shell 1, at least a portion of the elastic contact portion 3 is located outside the support 21. Figure 2 The elastic contact portion 3 shown protrudes from the exterior of the housing 1, support portion 21, transition portion 22, and extension portion 23, respectively, so that the elastic contact portion 3 directly contacts the inner wall of the fitting 6. The extension portion 23, along the direction of the support portion 21 near the housing 1, is at least partially located inside the support portion 21 in its projection onto the support portion 21. Figure 1 and Figure 2 The distance between the extension 23 and the inner wall of the fitting 6 is greater than the distance between the support 21 and the inner wall of the fitting 6, that is, the support 21 is closer to the inner wall of the fitting 6 than the extension 23.

[0035] In this embodiment, an elastic cantilever 2 is mounted on the housing 1. The elastic cantilever 2 comprises a support portion 21, a transition portion 22, and an extension portion 23 connected sequentially. The support portion 21 is connected to the housing 1. The transition portion 22 extends from the support portion 21 in a direction away from the housing 1, and the extension portion 23 is connected to the transition portion 22. An elastic contact portion 3 is connected to both the support portion 21 and the extension portion 23. The elastic contact portion 3 protrudes in a direction away from the interior of the housing 1. The projection of the elastic contact portion 3 onto the support portion 21 along the direction of the support portion 21 near the housing 1 is at least partially located outside the support portion 21. The projection of the extension portion 23 onto the support portion 21 along the direction of the support portion 21 near the housing 1 is at least partially located inside the support portion 21. In this way, the housing 1 provides support for the elastic cantilever 2. The support portion 21 of the elastic cantilever 2 is directly connected to the housing 1. The elastic contact portion 3, which is connected to the support portion 21 and the extension portion 23 respectively, protrudes in a direction away from the interior of the housing 1. The elastic contact portion 3 can elastically contact the inner wall of the fitting 6. Along the direction of the support portion 21 close to the housing 1, the projection of the elastic contact portion 3 on the support portion 21 is at least partially located outside the support portion 21, and the projection of the extension portion 23 on the support portion 21 is at least partially located inside the support portion 21. This makes the elastic contact portion 3 protrude from the outside of the support portion 21 and contact the inner wall of the fitting 6. Neither the extension portion 23 nor the support portion 21 of the elastic cantilever 2 contacts the inner wall of the fitting 6, which helps to reduce the friction between the elastic cantilever 2 and the fitting 6, and at the same time enhances the stability of the contact between the elastic contact portion 3 and the fitting 6. This achieves the technical effects of improving reliability, enhancing stability, and reducing the accuracy requirements.

[0036] In one implementation, there are multiple elastic cantilever arms 2 and multiple elastic contact parts 3. The multiple elastic cantilever arms 2 and multiple elastic contact parts 3 are distributed in a one-to-one correspondence, and the multiple elastic cantilever arms 2 are spaced apart from each other. That is, each elastic cantilever arm 2 can be provided with one elastic contact part 3. The spaced distribution of the elastic cantilever arms 2 reduces the contact area with the accessory 6, thus reducing friction. When subjected to external force, each elastic cantilever arm 2 and elastic contact part 3 can independently undergo elastic deformation, which helps to improve the stability and durability of the connection.

[0037] In some embodiments, the elastic contact portion 3 includes two support surfaces 31 and a raised surface 32. The two support surfaces 31 are respectively connected to the support portion 21 and the extension portion 23, and the raised surface 32 is respectively connected to the two support surfaces 31. The projection of the raised surface 32 along the direction of the support portion 21 near the housing 1 onto the support portion 21 is at least partially located outside the support portion 21. The two support surfaces 31 and the raised surface 32 enable the elastic contact portion 3 to undergo more stable elastic deformation when subjected to external forces. The raised surface 32 allows the elastic contact portion 3 to better contact the inner wall of the fitting 6, improving the tightness and stability of the contact.

[0038] In some embodiments, the raised surfaces 32 of the multiple elastic contact portions 3 are all located on the same plane, and this plane is perpendicular to the center line 11 of the housing 1. That is, the raised surfaces 32 of the multiple elastic contact portions 3 are all located in a plane perpendicular to the center line 11 of the housing 1. Having the raised surfaces 32 of the multiple elastic contact portions 3 located in the same plane allows the outer conductor contact to form a more uniform contact surface when connected to the fitting 6. This not only improves the stability of the connection but also reduces the precision requirements of the fitting 6, making the outer conductor contact applicable to a wider variety of fittings 6.

[0039] In some embodiments, the plurality of elastic contact portions 3 include a plurality of first elastic contact portions 4 and a plurality of second elastic contact portions 5, and the plurality of elastic cantilever arms 2 include a plurality of first elastic cantilever arms 241 and a plurality of second elastic cantilever arms 242. The plurality of first elastic cantilever arms 241 and the plurality of second elastic cantilever arms 242 are arranged alternately in sequence. The plurality of first elastic contact portions 4 are distributed in a one-to-one correspondence with the plurality of first elastic cantilever arms 241, and the plurality of second elastic contact portions 5 are distributed in a one-to-one correspondence with the plurality of second elastic cantilever arms 242. A second elastic cantilever arm 242 is provided between two adjacent first elastic cantilever arms 241, and the distance between the extension portion 23 of the first elastic cantilever arm 241 and the housing 1 is smaller than the distance between the extension portion 23 of the second elastic cantilever arm 242 and the housing 1. For example, assuming there are 6 elastic contact parts 3, then there are 3 first elastic contact parts 4 and 3 second elastic contact parts 5. Similarly, assuming there are 6 elastic cantilever arms 2, then there are 3 first elastic cantilever arms 241 and 3 second elastic cantilever arms 242. Each first elastic cantilever arm 241 has one first elastic contact part 4, and each second elastic cantilever arm 242 has one second elastic contact part 5. The three first elastic cantilever arms 241 and the three second elastic cantilever arms 242 are alternately arranged. Figure 4 The length of the first elastic cantilever 241 shown is less than the length of the second elastic cantilever 242, which helps the outer conductor contact to better adapt to the fittings 6 of different sizes and shapes.

[0040] In some embodiments, the first protruding surfaces 41 of a plurality of first elastic contact portions 4 are located in a first plane, and the second protruding surfaces 51 of a plurality of second elastic contact portions 5 are located in a second plane. The first plane and the second plane are perpendicular to the center line 11 of the housing 1, and the first plane is located between the second plane and the housing 1. Since the first elastic contact portion 4 and the elastic contact portion 3 described above have the same structure and principle, the first elastic contact portion 4 will not be described further. Similarly, since the second elastic contact portion 5 and the elastic contact portion 3 described above have the same structure and principle, the second elastic contact portion 5 will not be described further. Figure 4The different positions of the first protrusions 41 of the multiple first elastic contact portions 4 and the second protrusions 51 of the multiple second elastic contact portions 5 make it possible for the first protrusions 41 of the multiple first elastic contact portions 4 to first contact the inner wall of the fitting 6 during the insertion process, and then the second protrusions 51 of the multiple second elastic contact portions 5 to contact the inner wall of the fitting 6. This results in the insertion and extraction force being increased in stages, thereby increasing the stability of insertion and contact.

[0041] In some embodiments, the housing 1 is cylindrical, with the outer walls of the support portion 21 and the extension portion 23 being arc-shaped surfaces. Furthermore, the centerlines of the outer walls of the support portion 21 and the extension portion 23 are parallel to the centerline 11 of the housing 1. The arc-shaped surface of the support portion 21 provides sufficient support when connected to the housing 1. Since the centerlines of the support portion 21 and the extension portion 23 are parallel to the centerline 11 of the housing 1, it helps maintain the overall stability and balance of the outer conductor contact.

[0042] In some embodiments, the outer walls of multiple support portions 21 enclose a first receiving cavity 211, multiple transition portions 22 enclose a second receiving cavity 221, and multiple extension portions 23 enclose a third receiving cavity 231. The interior of the housing 1, the first receiving cavity 211, the second receiving cavity 221, and the third receiving cavity 231 are sequentially interconnected. The outer diameter of the first receiving cavity 211 is equal to the outer diameter of the housing 1, and the outer diameter of the third receiving cavity 231 is smaller than the outer diameter of the first receiving cavity 211. This allows the outer conductor contact to form a multi-layered structure inside, which helps to enhance the overall stability and load-bearing capacity.

[0043] In some embodiments, a through groove 25 is provided in the elastic cantilever 2. The through groove 25 extends sequentially from the support portion 21, the transition portion 22 to the extension portion 23, and the through groove 25 is directly opposite the elastic contact portion 3. This allows the elastic contact portion 3 to more flexibly deform elastically when subjected to external force, improving the tightness of the contact between the elastic contact portion 3 and the inner wall of the fitting 6. It also helps to distribute the force more evenly across the entire elastic cantilever 2 when the elastic contact portion 3 is subjected to external force, improving the overall stability and durability.

[0044] In some embodiments, there are two elastic contact portions 3, with a transition portion 22 located between them. Specifically, two elastic contact portions 3 are provided on each side of the transition portion 22 of an elastic cantilever 2. The elastic contact portions 3 are connected to the support portion 21 and the extension portion 23, respectively, and both elastic contact portions 3 protrude in a direction away from the interior of the housing 1. A transition portion 22 is provided between the two elastic contact portions 3. This transition portion 22 enhances the overall structural stability of the elastic cantilever 2, and allows for a more uniform stress distribution when the two elastic contact portions 3 are under force, which is beneficial for improving the reliability and stability of the outer conductor contact. In actual operation, when the outer conductor contact is inserted into the fitting 6, the two elastic contact portions 3 located on the elastic cantilever 2 will first contact the inner wall of the fitting 6. The elasticity of the elastic contact portions 3 allows them to adapt to the inner wall of the fitting 6, achieving stable signal transmission.

[0045] To provide a detailed description of the radio frequency connector provided by this utility model, the above embodiment 1 provides a detailed description of an outer conductor contact. Based on the same inventive concept, this application also provides a radio frequency connector, as detailed in embodiment 2.

[0046] Please see Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the structure of the elastic contact portion 3 and the fitting 6 in an RF connector according to an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the mating accessory 6 in a radio frequency connector provided by an embodiment of the present invention. Embodiment two of the present invention provides a radio frequency connector, including the aforementioned outer conductor contact, and further including the mating accessory 6, with the elastic contact portion 3 contacting the inner wall of the mating accessory 6.

[0047] This utility model provides a flexible cantilever 2 mounted on a housing 1. The flexible cantilever 2 comprises a support portion 21, a transition portion 22, and an extension portion 23 connected sequentially. The support portion 21 is connected to the housing 1. The transition portion 22 extends from the support portion 21 in a direction away from the housing 1, and the extension portion 23 is connected to the transition portion 22. An elastic contact portion 3 is connected to both the support portion 21 and the extension portion 23. The elastic contact portion 3 protrudes in a direction away from the interior of the housing 1. The projection of the elastic contact portion 3 onto the support portion 21 along the direction of the support portion 21 near the housing 1 is at least partially located outside the support portion 21. The projection of the extension portion 23 onto the support portion 21 along the direction of the support portion 21 near the housing 1 is at least partially located inside the support portion 21. In this way, the housing 1 provides support for the elastic cantilever 2. The support portion 21 of the elastic cantilever 2 is directly connected to the housing 1. The elastic contact portion 3, which is connected to the support portion 21 and the extension portion 23 respectively, protrudes in a direction away from the interior of the housing 1. The elastic contact portion 3 can elastically contact the inner wall of the fitting 6. Along the direction of the support portion 21 close to the housing 1, the projection of the elastic contact portion 3 on the support portion 21 is at least partially located outside the support portion 21, and the projection of the extension portion 23 on the support portion 21 is at least partially located inside the support portion 21. This makes the elastic contact portion 3 protrude from the outside of the support portion 21 and contact the inner wall of the fitting 6. Neither the extension portion 23 nor the support portion 21 of the elastic cantilever 2 contacts the inner wall of the fitting 6, which helps to reduce the friction between the elastic cantilever 2 and the fitting 6, and at the same time enhances the stability of the contact between the elastic contact portion 3 and the fitting 6. This achieves the technical effects of improving reliability, enhancing stability, and reducing the accuracy requirements.

[0048] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An external conductor contact, characterized in that, The outer conductor contact includes: a housing, an elastic cantilever disposed in the housing, and an elastic contact portion. The elastic cantilever includes a support portion, a transition portion, and an extension portion connected in sequence. The support portion is connected to the housing. The transition portion bends and extends from the support portion in a direction away from the housing. The extension portion is connected to the transition portion. The elastic contact portion is connected to the support portion and the extension portion respectively. The elastic contact portion protrudes in a direction away from the interior of the housing. The projection of the elastic contact portion on the support portion along the direction of the support portion near the housing is at least partially located outside the support portion. The projection of the extension portion on the support portion along the direction of the support portion near the housing is at least partially located inside the support portion.

2. The external conductor contact according to claim 1, characterized in that: The number of elastic cantilever arms and the number of elastic contact parts are both multiple, and the multiple elastic cantilever arms and the multiple elastic contact parts are distributed in a one-to-one correspondence, and the multiple elastic cantilever arms are distributed at intervals.

3. The external conductor contact according to claim 2, characterized in that: The elastic contact portion includes two support surfaces and a raised surface connected to each of the two support surfaces. The two support surfaces are connected to the support portion and the extension portion, respectively. The projection of the raised surface on the support portion along the direction of the support portion near the housing is at least partially located outside the support portion.

4. The external conductor contact according to claim 3, characterized in that: The raised surfaces of the plurality of elastic contact portions are located in the same plane, and the plane is perpendicular to the centerline of the housing.

5. The external conductor contact according to claim 2, characterized in that: The plurality of elastic contact portions include a plurality of first elastic contact portions and a plurality of second elastic contact portions, and the plurality of elastic cantilever portions include a plurality of first elastic cantilever portions and a plurality of second elastic cantilever portions. The plurality of first elastic cantilever portions and the plurality of second elastic cantilever portions are arranged alternately at intervals. The plurality of first elastic contact portions are distributed in a one-to-one correspondence with the plurality of first elastic cantilever portions, and the plurality of second elastic contact portions are distributed in a one-to-one correspondence with the plurality of second elastic cantilever portions. A second elastic cantilever portion is arranged between two adjacent first elastic cantilever portions, and the distance between the extension portion of the first elastic cantilever portion and the housing is smaller than the distance between the extension portion of the second elastic cantilever portion and the housing.

6. The external conductor contact according to claim 5, characterized in that: The first protruding surfaces of the plurality of first elastic contact portions are located in a first plane, and the second protruding surfaces of the plurality of second elastic contact portions are located in a second plane. The first plane and the second plane are respectively perpendicular to the center line of the housing, and the first plane is located between the second plane and the housing.

7. The external conductor contact according to claim 2, characterized in that: The shell is cylindrical, and the outer walls of the support and the extension are arc-shaped surfaces. The center lines of the outer walls of the support and the extension are parallel to the center line of the shell.

8. The external conductor contact according to claim 7, characterized in that: The outer walls of the plurality of support portions enclose to form a first receiving cavity, the plurality of transition portions enclose to form a second receiving cavity, and the plurality of extension portions enclose to form a third receiving cavity. The interior of the housing, the first receiving cavity, the second receiving cavity, and the third receiving cavity are sequentially connected. The outer diameter of the first receiving cavity is equal to the outer diameter of the housing, and the outer diameter of the third receiving cavity is smaller than the outer diameter of the first receiving cavity.

9. The external conductor contact according to claim 2, characterized in that: The elastic cantilever is provided with a through groove, which extends from the support portion through the transition portion to the extension portion, and the through groove is directly opposite the elastic contact portion.

10. The external conductor contact according to claim 1, characterized in that: The number of elastic contact portions is two, and the transition portion is located between the two elastic contact portions.

11. A radio frequency connector, characterized in that, The radio frequency connector includes an outer conductor contact as described in any one of claims 1 to 10, and further includes a mating part, wherein the resilient contact portion contacts the inner wall of the mating part.