Coaxial connection assembly and communication equipment

Abstract

The embodiment of the utility model relates to the technical field of connectors, and discloses a coaxial connection assembly and communication equipment, the coaxial connection assembly comprises a board end connector and a plug connector, the board end connector comprises a first metal shell, the plug connector comprises a second metal shell, and the first metal shell comprises a first metal shell and a second metal shell. An annular protruding part is arranged on the inner circumferential face of the first metal shell, an annular contact part matched with the annular protruding part is arranged on the outer circumferential face of the second metal shell, and the annular protruding part and the annular contact part are matched to form circumferential continuous contact. By means of the mode, the defects of a traditional point contact mode can be overcome, and contact is more reliable and stable. The circumferential continuous contact not only improves the grounding effect, but also enhances the shielding effect, and effectively prevents signal interference.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a coaxial connection assembly and a communication device. Background Technology

[0002] Coaxial connectors are widely used in various electronic devices for transmitting high-frequency signals. Existing coaxial connectors typically consist of two parts: a board-end connector and a plug connector. The board-end connector has a metal housing, insulation, and signal terminals; the plug connector also has a corresponding metal housing, insulation, and signal terminals. In practical applications, the board-end connector is usually fixedly mounted on a circuit board, while the plug connector connects to the coaxial cable. When the two are connected, not only is a reliable connection of the signal terminals required, but grounding and electromagnetic shielding functions must also be achieved through the contact between the metal housings.

[0003] In implementing the embodiments of this application, the inventors discovered that when existing board-end connectors and plug connectors mate, their metal housings often only form a few discrete point contacts. This contact method results in a small contact area and uneven distribution of contact points, leading to unsatisfactory grounding performance and affecting the electromagnetic shielding performance of the product. Utility Model Content

[0004] The main technical problem addressed by the embodiments of this application is to provide a coaxial connection component and communication device that can improve the shortcomings of traditional point contact methods, making the contact more reliable and stable. Circumferential continuous contact not only improves the grounding effect but also enhances the shielding effect, effectively preventing signal interference.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: providing a coaxial connection assembly, including a board-end connector and a plug connector. The board-end connector includes a first metal housing, a first insulating member, and a first terminal. The first insulating member is disposed in the first metal housing, and the first terminal is disposed within the first insulating member. The first terminal is used for signal transmission. The plug connector includes a second metal housing, a second insulating member, and a second terminal. The second insulating member is disposed in the second metal housing, and the second terminal is disposed within the second insulating member. The second terminal is used for mating with the first terminal. The inner circumferential surface of the first metal housing is provided with an annular protrusion, and the outer circumferential surface of the second metal housing is provided with an annular contact portion that matches the annular protrusion. The annular protrusion and the annular contact portion cooperate to form a continuous circumferential contact.

[0006] Optionally, the annular protrusion includes a plurality of protrusions, adjacent protrusions are connected by a transition surface, and the protrusions are evenly distributed along the inner circumferential surface of the first metal shell.

[0007] Optionally, the annular contact portion includes a plurality of contact steps, adjacent contact steps are connected by a slope transition, and the contact steps are evenly distributed along the outer peripheral surface of the second metal shell.

[0008] Optionally, the first metal housing includes a fixing section and a receiving section, the receiving section extending from one side of the fixing section, the first insulating member being disposed within the receiving section, and the annular protrusion being disposed on the inner circumferential surface of the receiving section.

[0009] Optionally, the second metal housing includes a connecting section and an insertion section, the connecting section being used to connect with the coaxial cable, the insertion section being disposed at one end of the connecting section, and the annular contact portion being disposed on the outer peripheral surface of the insertion section.

[0010] Optionally, a gap is formed between the outer peripheral surface of the first insulating member and the inner peripheral surface of the first metal housing, and the annular protrusion is located at the gap.

[0011] Optionally, one end of the first metal housing is provided with a mounting portion, which is used to fix it to the circuit board.

[0012] Optionally, the first terminal includes a fixing part and a contact part. The fixing part is fixed inside the first insulating member, and the contact part extends from the fixing part. One end of the second terminal is provided with an inner cavity, and the inner wall of the inner cavity is provided with a plurality of elastic contact arms, which abut against the contact part.

[0013] Optionally, the outer peripheral surface of the first insulating member is provided with a positioning protrusion extending axially, and the inner peripheral surface of the first metal housing is provided with a positioning groove adapted to the positioning protrusion.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a communication device, including any of the communication devices described above.

[0015] This application provides a coaxial connection assembly, including a board-end connector and a plug connector. The board-end connector includes a first metal housing, a first insulating member, and a first terminal. The first insulating member is disposed within the first metal housing, and the first terminal is disposed within the first insulating member. The first terminal is used for signal transmission. The plug connector includes a second metal housing, a second insulating member, and a second terminal. The second insulating member is disposed within the second metal housing, and the second terminal is disposed within the second insulating member. The second terminal is used to mate with the first terminal. The inner circumferential surface of the first metal housing has an annular protrusion, and the outer circumferential surface of the second metal housing has an annular contact portion that matches the annular protrusion. The annular protrusion and the annular contact portion mate to form a continuous circumferential contact. The coaxial connection assembly achieves continuous circumferential contact between the two metal housings by providing an annular protrusion on the inner circumferential surface of the first metal housing and a matching annular contact portion on the outer circumferential surface of the second metal housing. This design improves upon the shortcomings of traditional point contact methods, making the contact more reliable and stable. Continuous circumferential contact not only improves the grounding effect but also enhances the shielding effect, effectively preventing signal interference. At the same time, this structural design also overcomes the problem of metal shell deformation caused by stamping process and assembly, ensuring the overall performance of the connector. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the coaxial connection assembly according to an embodiment of this application;

[0018] Figure 2 This is an exploded view of the coaxial connection assembly according to an embodiment of this application;

[0019] Figure 3 This is an exploded view of the coaxial connection assembly according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the board-end connector according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the plug connector according to an embodiment of this application.

[0022] The reference numerals in the detailed embodiments are as follows: 100, coaxial connection assembly; 10, board-end connector; 11, first metal housing; 12, first insulating element; 13, first terminal; 20, plug connector; 21, second metal housing; 22, second insulating element; 23, second terminal; 14, annular protrusion; 24, annular contact portion; 141, protrusion; 241, contact step; 111, fixing section; 112, receiving section; 113, mounting portion; 211, connecting section; 212, insertion section; 131, fixing portion; 132, contact portion; 231, fixing portion; 121, positioning protrusion. Detailed Implementation

[0023] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see Figures 1 to 3The coaxial connection assembly 100 includes a board-end connector 10 and a plug connector 20. The board-end connector 10 includes a first metal housing 11, a first insulating member 12, and a first terminal 13. The first insulating member 12 is disposed within the first metal housing 11. The first terminal 13 is disposed within the first insulating member 12 and is used for signal transmission. The plug connector 20 includes a second metal housing 21, a second insulating member 22, and a second terminal 23. The second insulating member 22 is disposed within the second metal housing 21. The second terminal 23 is disposed within the second insulating member 22 and is used to mate with the first terminal 13. An annular protrusion 14 is provided on the inner circumferential surface of the first metal housing 11. An annular contact portion 24 is provided on the outer circumferential surface of the second metal housing 21. The annular protrusion 14 matches the annular contact portion 24. When the plug connector 20 is inserted into the board-end connector 10, the annular protrusion 14 and the annular contact portion 24 form a continuous circumferential contact. The continuous circumferential contact improves the grounding effect of the coaxial connection assembly 100 and enhances its shielding effect. The engagement of the annular protrusion 14 and the annular contact portion 24 overcomes the deformation problems of the first metal housing 11 and the second metal housing 21 caused by stamping and assembly processes, resulting in a more reliable contact effect for the coaxial connection assembly 100. The first terminal 13 and the second terminal 23 cooperate to transmit signals. The first metal housing 11 and the second metal housing 21 cooperate to shield the signals transmitted by the first terminal 13 and the second terminal 23. The first insulating member 12 and the second insulating member 22 provide insulation and fixation.

[0027] Please see Figure 4 In the board-end connector 10, the annular protrusion 14 includes a plurality of protrusions 141. The protrusions 141 are evenly distributed along the inner circumferential surface of the first metal housing 11. A transition surface is provided between adjacent protrusions 141. The transition surface makes the transition between adjacent protrusions 141 smoother, and the structure of the annular protrusion 14 avoids sharp edges, reducing wear between the first metal housing 11 and the second metal housing 21 during insertion and removal. The structure of the annular protrusion 14 also increases the contact area between the first metal housing 11 and the second metal housing 21.

[0028] For further details, please refer to Figure 5In the plug connector 20, the annular contact portion 24 includes a plurality of contact steps 241. The contact steps 241 are evenly distributed along the outer peripheral surface of the second metal housing 21. Adjacent contact steps 241 are connected by a beveled transition. The beveled design makes the transition between adjacent contact steps 241 smoother, and the structure of the annular contact portion 24 avoids sharp edges, reducing wear between the second metal housing 21 and the first metal housing 11 during insertion and removal. The structure of the annular contact portion 24 also increases the contact area between the second metal housing 21 and the first metal housing 11.

[0029] When the plug connector 20 is inserted into the board connector 10, the protrusion 141 of the annular protrusion 14 engages with the contact step 241 of the annular contact portion 24. The engagement of the protrusion 141 and the contact step 241 forms a continuous circumferential contact, which improves the grounding and shielding effects of the coaxial connection assembly 100. The engagement of the protrusion 141 and the contact step 241 overcomes the deformation problems of the first metal housing 11 and the second metal housing 21 caused by the stamping process and assembly, resulting in a more reliable contact effect for the coaxial connection assembly 100.

[0030] In this embodiment, the transition surface and the inclined surface enhance the contact effect between the protrusion 141 and the contact step 241, further improving the grounding and shielding effects of the coaxial connection assembly 100. The transition surface and the inclined surface also increase the service life of the coaxial connection assembly 100.

[0031] Please continue reading. Figure 4 and Figure 5The first metal housing 11 includes a fixing section 111 and a receiving section 112. The receiving section 112 extends from one side of the fixing section 111. The first insulating member 12 is disposed within the receiving section 112. The annular protrusion 14 is disposed on the inner peripheral surface of the receiving section 112. The fixing section 111 is used to fix the first metal housing 11. The receiving section 112 is used to accommodate the first insulating member 12 and the first terminal 13. The arrangement of the receiving section 112 makes the structure of the coaxial connection assembly 100 more compact; furthermore, the second metal housing 21 includes a connecting section 211 and an insertion section 212. The connecting section 211 is used to connect with a coaxial cable. The insertion section 212 is disposed at one end of the connecting section 211. The annular contact portion 24 is disposed on the outer peripheral surface of the insertion section 212. The connecting section 211 is used to fix the plug connector 20 to the coaxial cable. The insertion section 212 is used to insert into the receiving section 112 of the board-end connector 10. The insertion section 212 facilitates the insertion of the plug connector 20 and the board end connector 10.

[0032] In this embodiment, a gap is formed between the outer peripheral surface of the first insulating member 12 and the inner peripheral surface of the first metal housing 11. The annular protrusion 14 is located at the gap. The gap is configured to provide space for the annular protrusion 14. The gap also avoids interference between the first insulating member 12 and the first metal housing 11. When the plug connector 20 is inserted into the board-end connector 10, the insertion section 212 is inserted into the receiving section 112. The annular contact portion 24 engages with the annular protrusion 14. The engagement forms a continuous circumferential contact. The connecting section 211 engages with the fixing section 111. The engagement enhances the connection strength between the plug connector 20 and the board-end connector 10.

[0033] Please refer to the following: Figure 3 The first metal housing 11 has a mounting portion 113 at one end. The mounting portion 113 is used for fixed connection with the circuit board. The mounting portion 113 improves the installation stability of the coaxial connection assembly 100, so that the coaxial connection assembly 100 can be firmly fixed on the circuit board.

[0034] Please continue reading. Figure 4 and Figure 5In this embodiment, the first terminal 13 includes a fixing portion 131 and a contact portion 132. The fixing portion 131 is fixed within the first insulating member 12. The contact portion 132 extends from the fixing portion 131. One end of the second terminal 23 is provided with an inner cavity 231. The inner wall of the inner cavity is provided with a plurality of elastic contact arms 232. The elastic contact arms abut against the contact portions 132. The fixing portion 131 is used to fix the first terminal 13 within the first insulating member 12. The contact portion 132 is used to cooperate with the elastic contact arms of the second terminal 23. The provision of the elastic contact arms enhances the contact effect between the first terminal 13 and the second terminal 23, improving the reliability of signal transmission.

[0035] In this embodiment, the outer peripheral surface of the first insulating member 12 is provided with the positioning protrusion 121 extending axially. The inner peripheral surface of the first metal housing 11 is provided with the positioning groove (not shown). The positioning groove is adapted to the positioning protrusion 121. The arrangement of the positioning protrusion 121 and the positioning groove improves the assembly accuracy between the first insulating member 12 and the first metal housing 11. The arrangement of the positioning protrusion 121 and the positioning groove also prevents the first insulating member 12 from rotating within the first metal housing 11.

[0036] When the plug connector 20 is inserted into the board connector 10, the elastic contact arm of the second terminal 23 abuts against the contact portion 132 of the first terminal 13. This abutment forms a reliable electrical connection. The elastic deformation of the elastic contact arm provides contact pressure, ensuring the stability of signal transmission. Simultaneously, the cooperation of the positioning protrusion 121 and the positioning groove 221 ensures accurate mating between the first terminal 13 and the second terminal 23. The mounting portion 113 securely fixes the coaxial connection assembly 100 onto the circuit board, preventing displacement of the coaxial connection assembly 100 during use.

[0037] This application provides a coaxial connection assembly 100, including a board-end connector 10 and a plug connector 20. The board-end connector 10 includes a first metal housing 11, a first insulating member 12, and a first terminal 13. The first insulating member 12 is disposed within the first metal housing 11, and the first terminal 13 is disposed within the first insulating member 12. The first terminal 13 is used for signal transmission. The plug connector 20 includes a second metal housing 21, a second insulating member 22, and a second terminal 23. The second insulating member 22 is disposed within the second metal housing 21, and the second terminal 23 is disposed within the second metal housing 21. Within the second insulating member 22, the second terminal 23 is used to mate with the first terminal 13. The inner circumferential surface of the first metal housing 11 is provided with an annular protrusion 14, and the outer circumferential surface of the second metal housing 21 is provided with an annular contact portion 24 that matches the annular protrusion 14. The annular protrusion 14 and the annular contact portion 24 mate to form a continuous circumferential contact. The coaxial connection assembly 100 achieves continuous circumferential contact between the two metal housings by providing an annular protrusion 14 on the inner circumferential surface of the first metal housing 11 and a matching annular contact portion 24 on the outer circumferential surface of the second metal housing 21. This design improves upon the shortcomings of traditional point contact methods, making the contact more reliable and stable. Continuous circumferential contact not only improves the grounding effect but also enhances the shielding effect, effectively preventing signal interference. Simultaneously, this structural design overcomes the problem of metal housing deformation caused by stamping processes and assembly, ensuring the overall performance of the connector.

[0038] This application also provides an embodiment of a communication device, which includes the coaxial connection component 100 described above. For the specific structure and function of the communication device, please refer to the above embodiments, which will not be repeated here.

[0039] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A coaxial connection assembly, characterized in that, include: A board-end connector includes a first metal housing, a first insulating member, and a first terminal. The first insulating member is disposed in the first metal housing, and the first terminal is disposed within the first insulating member. The first terminal is used to transmit signals. A plug connector includes a second metal housing, a second insulating member, and a second terminal. The second insulating member is disposed in the second metal housing, and the second terminal is disposed within the second insulating member. The second terminal is used to mate with the first terminal. The first metal shell has an annular protrusion on its inner circumferential surface, and the second metal shell has an annular contact portion that matches the annular protrusion on its outer circumferential surface. The annular protrusion and the annular contact portion cooperate to form a continuous circumferential contact.

2. The coaxial connection assembly according to claim 1, characterized in that, The annular protrusion includes a plurality of protrusions, which are connected by a transition surface and are evenly distributed along the inner circumferential surface of the first metal shell.

3. The coaxial connection assembly according to claim 2, characterized in that, The annular contact portion includes a plurality of contact steps, and adjacent contact steps are connected by a slope transition. The contact steps are evenly distributed along the outer circumferential surface of the second metal shell.

4. The coaxial connection assembly according to claim 1, characterized in that, The first metal housing includes a fixing section and a receiving section. The receiving section extends from one side of the fixing section. The first insulating member is disposed within the receiving section, and the annular protrusion is disposed on the inner circumferential surface of the receiving section.

5. The coaxial connection assembly according to claim 4, characterized in that, The second metal housing includes a connecting section and an insertion section. The connecting section is used to connect with a coaxial cable, the insertion section is disposed at one end of the connecting section, and the annular contact portion is disposed on the outer peripheral surface of the insertion section.

6. The coaxial connection assembly according to claim 5, characterized in that, A gap is formed between the outer peripheral surface of the first insulating member and the inner peripheral surface of the first metal housing, and the annular protrusion is located at the gap.

7. The coaxial connection assembly according to claim 4, characterized in that, One end of the first metal housing is provided with a mounting part, which is used to fix it to the circuit board.

8. The coaxial connection assembly according to claim 1, characterized in that, The first terminal includes a fixing part and a contact part. The fixing part is fixed inside the first insulating member, and the contact part extends from the fixing part. One end of the second terminal is provided with an inner cavity, and the inner wall of the inner cavity is provided with a plurality of elastic contact arms, which abut against the contact part.

9. The coaxial connection assembly according to claim 1, characterized in that, The outer peripheral surface of the first insulating member is provided with a positioning protrusion extending along the axial direction, and the inner peripheral surface of the first metal housing is provided with a positioning groove that matches the positioning protrusion.

10. A communication device, characterized in that, Includes the coaxial connection assembly as described in any one of claims 1-9.

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