Novel outer conductor structure used in coaxial connector and coaxial connector

Abstract

The outer conductor structure comprises a first sleeve and a second sleeve, the second end of the first sleeve is inserted into the second end of the second sleeve, and the contact parts of the first sleeve and the second sleeve are electrically and mechanically connected; the middle section of the sleeve II is concave inwards to form an axial limiting area I, the inner insertion part of the sleeve I forms an axial limiting area II, and the axial limiting area II and the circumferential upward convex step surface of the insulating rubber core form an axial limiting structure; the contact portion is at least partially embossed to enhance the connection; the base part and the rod part of the insulating rubber core are respectively matched with the inner diameters of the sleeve II and the sleeve I, and the outer diameter difference of the base part and the rod part is matched with the wall thickness of the sleeve I; the first end of the sleeve II is in matched connection with the coaxial cable outer conductor through the support ring and the folding part, and the periphery of the sleeve II is provided with a crimping groove and a crimping stress release hole corresponding to the window of the support ring. According to the structure, the problems of inaccurate axial positioning, unreliable contact, concentrated crimping stress and the like are solved, and the stability and the reliability of the coaxial connector are improved.

Description

Technical Field

[0001] This invention relates to coaxial connector technology, and particularly to a novel outer conductor structure for use in coaxial connectors and a coaxial connector. Background Technology

[0002] In the use of coaxial connectors, the stability and reliability of the outer conductor structure are crucial to overall performance. In existing technologies, the outer conductor of coaxial connectors often suffers from the following problems:

[0003] Inaccurate axial positioning between the components of the outer conductor can easily lead to relative slippage, resulting in loose connections and affecting electrical connection performance and mechanical stability.

[0004] The connection between the outer conductor and the coaxial cable is not tight and reliable enough, which can easily lead to poor contact and increase signal transmission loss.

[0005] When connected to a coaxial cable, the stress concentration at the crimping point is significant, which can easily lead to damage to the outer conductor or the outer conductor of the cable, reducing the service life and reliability of the connector.

[0006] Insufficient fit between the insulating core and the outer conductor affects the stability of the overall structure, which in turn has an adverse effect on signal transmission.

[0007] Therefore, in view of the problems of inaccurate axial positioning, unreliable contact, stress concentration during crimping, and low insulation fit accuracy of the outer conductor of the coaxial connector in the prior art, it is necessary to design a new outer conductor structure and a coaxial connector incorporating such a structure to solve the above problems. Summary of the Invention

[0008] To overcome the shortcomings of the prior art, the present invention aims to provide a novel outer conductor structure and coaxial connector for use in coaxial connectors, so as to solve the problems of inaccurate axial positioning, unreliable contact, stress concentration during crimping and low insulation fit accuracy in the prior art, thereby improving the stability and reliability of coaxial connectors.

[0009] To achieve the above and other related objectives, the technical solution provided by this invention is: a novel outer conductor structure for use in a coaxial connector, comprising:

[0010] Sleeve 1, the first end of which is used for electrical and mechanical connection with the outer conductor of the mating connector;

[0011] Sleeve 2, the first end of which is used for electrical and mechanical connection with the outer conductor of the coaxial cable;

[0012] Wherein, the second end of the first sleeve is inserted into the second end of the second sleeve, and the contact portion of the first sleeve and the second sleeve is electrically and mechanically connected;

[0013] The middle section of the second sleeve is recessed to form an axial limiting region one inside the cylinder, and the part of the first sleeve inserted into the second sleeve forms an axial limiting region two inside the cylinder. The axial limiting region one and the axial limiting region two constitute an axial limiting structure corresponding to the circumferentially convex step surface of the insulating rubber core.

[0014] The preferred technical solution is that the contact portion is at least partially imprinted.

[0015] A preferred technical solution is that the insulating core has a base and a rod extending along the axial direction, the outer diameter of the base matches the inner diameter of the second sleeve, and the outer diameter of the rod matches the inner diameter of the first sleeve.

[0016] A preferred technical solution is that the difference between the outer diameter of the base and the outer diameter of the rod matches the wall thickness of the sleeve.

[0017] The preferred technical solution is that the middle section of the second sleeve is concave to form an annular groove structure.

[0018] A preferred technical solution is as follows: the insulation layer of the coaxial cable is cut off at the end and a support ring is fitted on it; the outer conductor end of the coaxial cable has a folded portion, which covers the support ring; the end of the coaxial cable is inserted into the first end of the second sleeve; the first end of the second sleeve is electrically connected to the folded portion and mechanically connected to the support ring.

[0019] A preferred technical solution is that the outer periphery of the support ring has a window, and at least one side of the window corresponding to the axial direction is provided with a flange structure that is at least partially formed inward.

[0020] The preferred technical solution is that a pressing groove is formed on the outer periphery of the first end of the second sleeve, and the pressing groove is matched and matched with the window.

[0021] A preferred technical solution is that the outer periphery of the first end of the second sleeve is provided with a pressure stress relief hole, which is located at the end of the pressure groove.

[0022] A coaxial connector comprising the novel outer conductor structure described above.

[0023] Due to the application of the above technical solution, the beneficial effects of this invention are as follows:

[0024] This invention solves the problem of inaccurate axial positioning between various components of the outer conductor by setting up two axial limiting regions, which cooperate with the circumferential convex step surface of the insulating core to form an axial limiting structure, thereby preventing relative slippage and improving the stability of the overall structure.

[0025] The contact portion between sleeve one and sleeve two is at least partially imprinted, which enhances the tightness of the connection between the two, ensures the reliability of the electrical connection, and reduces signal transmission loss.

[0026] The base and rod of the insulating rubber core are matched with the inner diameters of sleeve two and sleeve one, respectively, and the difference between the outer diameters of the base and the rod is matched with the wall thickness of sleeve one. This improves the fitting accuracy between the insulating rubber core and the outer conductor structure and further ensures the stability of the overall structure.

[0027] When connected to a coaxial cable, the combination of the support ring, folded part, window, crimping groove and crimping stress relief hole not only enhances the connection between the sleeve two and the outer conductor of the coaxial cable, but also disperses the crimping stress, avoids damage to the crimping part, and extends the service life of the connector.

[0028] In summary, this invention effectively solves many problems existing in the outer conductor of coaxial connectors in the prior art, significantly improves the stability and reliability of coaxial connectors, and has high practical value. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the female outer conductor and the connecting cable in the assembled state according to the present invention.

[0030] Figure 2 This is a schematic cross-sectional view of the female outer conductor in the assembled state according to the present invention.

[0031] Figure 3 This is a schematic diagram of the support ring structure involved in the present invention. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0033] Please see Figures 1-3It should be noted that in the description of this invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example:

[0036] like Figures 1 to 3 As shown, in one embodiment of the present invention, a novel outer conductor structure for use in a coaxial connector includes sleeve 1 and sleeve 2.

[0037] The first end of sleeve 1 is used to achieve electrical and mechanical connection with the outer conductor of the mating connector. The second end of sleeve 1 is inserted into the second end of sleeve 2. The contact part of the two is treated with embossing to enhance the tightness of the connection and ensure electrical connection performance and mechanical strength.

[0038] The middle section of sleeve 2 is recessed to form an annular groove structure, which serves as axial limiting area 21. The part of sleeve 1 inserted into sleeve 2 forms axial limiting area 11. Axial limiting area 21 and axial limiting area 11 together cooperate with the circumferential convex step surface 33 of insulating core 3 to form an axial limiting structure, thereby achieving precise axial positioning and preventing relative sliding between sleeve 1, sleeve 2 and insulating core 3.

[0039] The insulating core 3 has a base 31 and a rod 32 extending along the axial direction. The outer diameter of the base 31 (boss) matches the inner diameter of the sleeve 2, and the outer diameter of the rod 32 matches the inner diameter of the sleeve 1. The difference between the outer diameter of the base 31 and the outer diameter of the rod 32 matches the wall thickness of the sleeve 1, ensuring the precise fit between the insulating core 3 and the sleeve 1 and the sleeve 2.

[0040] The first end of sleeve 2 is used to connect to coaxial cable 5. After the insulation layer of coaxial cable 5 is cut off, a support ring 4 is fitted onto the end of the coaxial cable 5. The outer conductor end of the coaxial cable 5 forms a folded portion 51 and covers the support ring 4. A window 41 is opened on the outer periphery of the support ring 4. At least one side of the window 41 corresponding to the axial direction has an inwardly oriented flange structure 42. The outer periphery of the first end of sleeve 2 is recessed to form a crimping groove 22 that matches the window 41. A crimping stress relief hole 23 is provided at the end of the crimping groove 22. During assembly, the end of coaxial cable 5 is inserted into the first end of sleeve 2. The sleeve 2 is electrically connected to the folded portion 51 and mechanically connected to the support ring 4 through crimping. The flange structure 42 enhances the fixing effect, and the crimping stress relief hole 23 disperses the crimping stress.

[0041] It should be noted that, in the assembled state, one end of the support ring 4 abuts against the end of the insulation layer of the coaxial cable 5, and the other end wraps around the bent area of ​​the folded part 51 and abuts against the axial limiting area 21 (i.e., the annular groove structure formed by the concave middle section of the sleeve 2), thus constituting axial limiting.

[0042] A coaxial connector includes the novel outer conductor structure described above and possesses all the beneficial effects of the novel outer conductor structure described above.

[0043] Therefore, the present invention has the following advantages:

[0044] This invention solves the problem of inaccurate axial positioning between various components of the outer conductor by setting up two axial limiting regions, which cooperate with the circumferential convex step surface of the insulating core to form an axial limiting structure, thereby preventing relative slippage and improving the stability of the overall structure.

[0045] The contact portion between sleeve one and sleeve two is at least partially imprinted, which enhances the tightness of the connection between the two, ensures the reliability of the electrical connection, and reduces signal transmission loss.

[0046] The base and rod of the insulating rubber core are matched with the inner diameters of sleeve two and sleeve one, respectively, and the difference between the outer diameters of the base and the rod is matched with the wall thickness of sleeve one. This improves the fitting accuracy between the insulating rubber core and the outer conductor structure and further ensures the stability of the overall structure.

[0047] When connected to a coaxial cable, the combination of the support ring, folded part, window, crimping groove and crimping stress relief hole not only enhances the connection between the sleeve two and the outer conductor of the coaxial cable, but also disperses the crimping stress, avoids damage to the crimping part, and extends the service life of the connector.

[0048] In summary, this invention effectively solves many problems existing in the outer conductor of coaxial connectors in the prior art, significantly improves the stability and reliability of coaxial connectors, and has high practical value.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A novel outer conductor structure for use in coaxial connectors, characterized in that, include: Sleeve 1, the first end of which is used for electrical and mechanical connection with the outer conductor of the mating connector; Sleeve 2, the first end of which is used for electrical and mechanical connection with the outer conductor of the coaxial cable; Wherein, the second end of the first sleeve is inserted into the second end of the second sleeve, and the contact portion of the first sleeve and the second sleeve is electrically and mechanically connected; The middle section of the second sleeve is recessed to form an axial limiting region one inside the cylinder, and the part of the first sleeve inserted into the second sleeve forms an axial limiting region two inside the cylinder. The axial limiting region one and the axial limiting region two constitute an axial limiting structure corresponding to the circumferentially convex step surface of the insulating rubber core.

2. The novel outer conductor structure for use in a coaxial connector according to claim 1, characterized in that: The contact portion is at least partially imprinted.

3. A novel outer conductor structure for use in a coaxial connector according to claim 1, characterized in that: The insulating core has a base and a rod extending axially. The outer diameter of the base matches the inner diameter of the second sleeve, and the outer diameter of the rod matches the inner diameter of the first sleeve.

4. A novel outer conductor structure for use in a coaxial connector according to claim 3, characterized in that: The difference between the outer diameter of the base and the outer diameter of the rod is matched with the wall thickness of the sleeve.

5. A novel outer conductor structure for use in a coaxial connector according to claim 1, characterized in that: The middle section of the second sleeve is concave to form an annular groove structure.

6. A novel outer conductor structure for use in a coaxial connector according to claim 1, characterized in that: The insulation layer of the coaxial cable is cut off at the end and a support ring is fitted on it. The outer conductor end of the coaxial cable has a folded portion, which covers the support ring. The end of the coaxial cable is inserted into the first end of the second sleeve. The first end of the second sleeve is electrically connected to the folded portion and mechanically connected to the support ring.

7. A novel outer conductor structure for use in a coaxial connector according to claim 6, characterized in that: The outer periphery of the support ring has a window, and at least one side of the window corresponding to the axial direction is provided with a flange structure that is at least partially provided inward.

8. A novel outer conductor structure for use in a coaxial connector according to claim 7, characterized in that: The outer periphery of the first end of the second sleeve is recessed to form a pressing groove, which is matched and configured to correspond to the window.

9. A novel outer conductor structure for use in a coaxial connector according to claim 8, characterized in that: The outer periphery of the first end of the second sleeve is provided with a pressure stress relief hole, which is located at the end of the pressure groove.

10. A coaxial connector, characterized in that: Includes the novel outer conductor structure as described in any one of claims 1-9.

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