Connection terminal for riveting core wire and connector thereof
By designing a dovetail-style closing structure and reinforcing ribs for the connecting terminals, the problem of unstable clamping of the core wire during the riveting process was solved, achieving complete wrapping of the core wire and stable signal transmission, thereby improving production efficiency and yield.
Patent Information
- Application Number
- CN202522171056.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-10-14
AI Technical Summary
Existing coaxial cable connectors often suffer from unstable core wire clamping during the riveting process, leading to issues such as scattered core wires, core wire sandwiching, incomplete wrapping, or even core wire breakage, which affects production yield and efficiency.
A connecting terminal for riveting core wires was designed. The core wire wrapping part adopts a dovetail-type closing structure, with both ends bent into semi-cylindrical cavities and vertical curved reinforcing ribs set on the inner side. Combined with chamfering and beveled corner treatment, it ensures that the core wire is completely wrapped and not damaged.
It improves the stability and integrity of core wire crimping, enhances the crimping strength between the core wire and the terminal, reduces signal transmission instability, and improves production yield and adaptability to automated production.
Smart Images
Figure CN223771376U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to a connecting terminal and connector for riveted core wires, and more particularly to a connecting terminal and connector for riveted core wires that can prevent coaxial cables from being broken by riveting, belonging to the field of coaxial cable connection technology. [Background Technology]
[0002] Coaxial cable connectors are primarily used for transmitting high-frequency electrical signals. Their core function is to ensure low-loss, high-shield, and high-stability transmission of various radio frequency (RF) and microwave signals. They are widely used in basic communication infrastructure fields such as 5G / 6G base stations, fiber optic network terminals, and satellite communication equipment. They are also fundamental for precision instruments such as spectrum analyzers and network analyzers to achieve high-precision signal acquisition and analysis. In addition, they are used in defense and aerospace, automotive electronics, medical equipment, and the increasingly prevalent Internet of Things (IoT) and smart home systems. With the rapid development of cutting-edge technologies such as 5G communication, IoT, artificial intelligence, and autonomous driving, stringent requirements are being placed on the performance of connectors.
[0003] However, existing coaxial cable connectors and terminals often suffer from unstable core wire clamping during the coaxial cable crimping process, leading to issues such as scattered core wires, core wire sandwiching, incomplete wrapping, or even broken core wires, which seriously affect production yield and efficiency. [Utility Model Content]
[0004] The purpose of this invention is to overcome the problems mentioned above in the background art: to provide a connecting terminal that can completely wrap the core wire, prevent breakage, and is compatible with automatic machines for producing riveted core wires, as well as a coaxial cable connector containing the connecting terminal.
[0005] The technical solution adopted in this utility model is:
[0006] A connecting terminal for riveting core wires includes a contact portion, a connecting stop portion, and a core wire wrapping portion, wherein the contact portion, the connecting stop portion, and the core wire wrapping portion are arranged sequentially, and the core wire wrapping portion is used for riveting the core wire of a coaxial cable, wherein the two ends of the core wire wrapping portion are dovetail-type closing structures;
[0007] The connecting stop is an inclined surface between the connecting core wire wrapping part and the contact part, used to prevent the core wire from protruding longitudinally.
[0008] As a further improvement to the above solution, the dovetail-shaped end caps of the core wire wrapping section are bent towards the middle to form a semi-cylindrical cavity, and the dovetail-shaped end caps are on the same horizontal plane.
[0009] As a further improvement to the above solution, at least one raised reinforcing rib is provided on the inner side of the core wire wrapping portion.
[0010] As a further improvement to the above solution, two reinforcing ribs are provided perpendicular to the core wire, which are two parallel protrusions with smooth curved surfaces.
[0011] As a further improvement to the above solution, the contact portion includes a bottom body and support arms extending from both sides of the bottom body. The extending direction of the support arms is opposite to the bending direction of the core wire wrapping portion, and the bottom body of the contact portion is above the bottom of the core wire wrapping portion.
[0012] As a further improvement to the above solution, the tail end of the core wire wrapping part is chamfered, and the edge of the dovetail-shaped closing structure is provided with a beveled chamfer.
[0013] Furthermore, a connector including the connection terminal with the above structure further includes an insulating base and a housing. The housing includes a joint, a fastening part, and a wire clamp. The inner side of the joint is provided with a plurality of fixing protrusions. The joint and the fastening part together fix the insulating base in which the connection terminal is assembled. The wire clamp can be connected to the shielding layer and outer sheath of a coaxial cable.
[0014] As a further improvement to the above solution, the insulating base includes a base body for mounting the connecting terminal, a through-hole structure for fitting and exposing the contact portion and matching the support arm, a pressure cover portion for fixing the connecting terminal, and a plurality of groove portions for fixing to the fixing protrusion.
[0015] As a further improvement to the above solution, the wire clamp includes a first wire clamp arm and a second wire clamp arm, wherein the first wire clamp arm directly clamps the shielding layer of the coaxial cable, and the second wire clamp arm directly clamps the outer sheath of the coaxial cable.
[0016] As a further improvement to the above solution, the joint is a cylindrical structure, and the upper edge of the cylindrical structure is provided with a positioning groove for positioning and connection with the docking connector.
[0017] Compared with the prior art, the beneficial effects of the connecting terminal and connector for riveting core wires provided by this utility model are as follows: by adopting a dovetail-type closing structure design at both ends of the core wire wrapping part, the closing stability of the core wire wrapping part structure is improved, which can effectively ensure that the core wire is completely riveted and wrapped, thereby improving the product yield; bending the dovetail-type closing structure at both ends towards the middle can better connect with automated equipment; the vertically set curved reinforcing ribs help to increase the crimping strength between the core wire and the terminal; the chamfering and beveled corner treatment avoids cutting or damaging the core wire during riveting, reducing signal transmission instability. [Attached Image 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 description of the embodiments or the prior art 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 a connecting terminal for riveting core wire according to the present invention;
[0020] Figure 2 This is a schematic diagram of the connection terminal for riveting core wire and the structure of the coaxial cable before riveting, according to the present invention.
[0021] Figure 3 This is a schematic diagram of the connection terminal for riveting core wire and the structure of the coaxial cable after riveting, according to the present invention.
[0022] Figure 4 This is an exploded perspective view of a connector according to the present invention;
[0023] Figure 5 This is a cross-sectional view of a connector and coaxial cable connection according to the present invention;
[0024] The components represented by each number in the attached diagram are explained below:
[0025] 1-Connecting terminal, 11-Contact part, 111-Bottom body, 112-Support arm, 12-Connecting stop part, 13-Core wire wrapping part,
[0026] 131-Dovetail-shaped closing structure, 131a-Beveled chamfer, 132-Reinforcing rib, 133-Chamfer, 2-Base, 21-Base body, 22-Through hole structure, 23-Crimping part, 24-Groove part, 3-Shell, 31-Joint part, 311-Fixing protrusion, 312-Positioning groove, 32-Snap-fit part, 33-Wire clamp part, 331-First wire clamp arm, 332-Second wire clamp arm, 4-Coaxial cable, 41-Core wire, 42-Insulation layer, 43-Shielding layer, 44-Outer sheath.
[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.
Detailed Implementation Methods
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0029] like Figure 1 and Figure 2 As shown, a connecting terminal for crimping core wires includes a contact portion 11, a connecting stop portion 12, and a core wire wrapping portion 13, which are arranged sequentially. The core wire wrapping portion 13 is used to crimp the core wire 41 of a coaxial cable 4. Furthermore, both ends of the core wire wrapping portion 13 are dovetail-shaped closing structures 131. The connecting stop portion 12 is an inclined surface connecting the core wire wrapping portion 13 and the contact portion 11, used to prevent the core wire 41 from protruding longitudinally.
[0030] The design of the dovetail-shaped closing structure 131 at both ends of the core wire wrapping part 13 improves the structural closure stability of the core wire wrapping part 13, effectively ensuring that the core wire 41 is completely riveted and wrapped, and avoiding excessive compression damage to the core wire 41.
[0031] like Figure 1 As shown, further, the dovetail-shaped closing structures 131 at both ends of the core wire wrapping part 13 are bent towards the middle to form a semi-cylindrical cavity, and the dovetail-shaped closing structures 131 at both ends are on the same horizontal plane. The bent connecting terminal 1 can be better connected to the automated equipment, which facilitates automated production operation and improves production efficiency.
[0032] Furthermore, at least one raised reinforcing rib 132 is provided on the inner side of the core wire wrapping part 13.
[0033] Furthermore, two reinforcing ribs 132 are provided perpendicular to the core wire 41, and are two parallel protrusions with smooth curved surfaces. The vertically arranged curved reinforcing ribs 132 help to increase the crimping strength between the core wire 41 and the terminal.
[0034] Furthermore, the contact portion 11 includes a bottom body 111 and support arms 112 extending from both sides of the bottom body 111. The extending direction of the support arms 112 is opposite to the bending direction of the core wire wrapping portion 13. The bottom body 111 of the contact portion 11 is above the bottom of the core wire wrapping portion 13. The connecting stop portion 12 between the contact portion 11 and the core wire wrapping portion 13 is an inclined surface, which can be used to laterally block the longitudinal protrusion of the core wire 41.
[0035] Furthermore, the tail end of the core wire wrapping part 13 is chamfered 133. By making a smooth chamfer at the tail end of the core wire wrapping part 13, the core wire 41 is prevented from being cut laterally during the tightening process of the core wire wrapping part 13 during riveting, which would cause unstable signal transmission. The edge of the dovetail-shaped closing structure 131 is provided with a beveled chamfer 131a, which eliminates the sharp edges at both ends and can significantly reduce the risk of damage to the core wire 41 during riveting.
[0036] like Figure 2 and Figure 3As shown, the connection terminal 1 and the core wire 41 are structurally schematic before and after riveting. The dovetail-shaped closing structures 131 at both ends of the core wire wrapping part 13 are guided by the beveled chamfer 131a set on the edge. The two dovetail-shaped closing structures 131 at both ends, which are on the same horizontal plane, are riveted and contracted synchronously to achieve precise alignment and interlocking. In addition, the chamfer 133 and the beveled chamfer 131a set at the tail end of the core wire wrapping part 13 form a double protection mechanism to ensure the stability of the core wire 41 riveting process.
[0037] like Figure 4 As shown, this utility model also provides a connector including the connection terminal 1 for riveting the core wire as described above. The connector includes an insulating base 2 and a housing 3. The housing 3 includes a joint portion 31, a fastening portion 32 and a wire clamp portion 33. The inner side of the joint portion 31 is provided with a plurality of fixing protrusions 311. The joint portion 31 and the fastening portion 32 together fix the insulating base 2, which is internally equipped with the connection terminal 1. The wire clamp portion 33 is connected to the shielding layer 43 and the outer sheath 44 of the coaxial cable 4.
[0038] Furthermore, the insulating base 2 includes a base body 21 for mounting the connecting terminal 1, a through hole structure 22 for fitting and exposing the contact portion 11 and matching the support arm 112, a pressure cover portion 23 for fixing the connecting terminal, and a plurality of groove portions 24 for fixing to the fixing protrusion 311, which makes the entire connector structure simple and facilitates the processing and manufacturing of the connecting terminal for riveting the core wire and its connector.
[0039] like Figure 5 As shown, the wire clamp portion 33 further includes a first wire clamp arm 331 and a second wire clamp arm 332. The first wire clamp arm 331 directly clamps the shielding layer 43 of the coaxial cable 4, and the second wire clamp arm 332 directly clamps the outer sheath 44 of the coaxial cable 4. The connector housing 3 and the shielding layer 43 are reliably connected, together forming a continuous shield that effectively blocks external electromagnetic interference (EMI) and prevents internal signal leakage.
[0040] Furthermore, the joint 31 is a cylindrical structure, and the upper edge of the cylindrical structure is provided with a positioning groove 312 for positioning and connecting with the docking connector.
[0041] To address the technical problems in existing technologies where unstable clamping of the core wire 41 leads to scattering, core wire clamping, incomplete wrapping, or even breakage of the core wire 41, severely impacting production yield and efficiency, this invention employs a dovetail-shaped closing structure 131 at both ends of the core wire wrapping portion 13. This design enhances the structural closure stability of the core wire wrapping portion 13, effectively ensuring that the core wire 41 is completely riveted and wrapped, thus improving product yield. Bending the dovetail-shaped closing structures 131 at both ends towards the center allows for better connection with automated equipment. Vertically arranged curved reinforcing ribs 132 help increase the crimping strength between the core wire and the terminal. Chamfering 133 and beveled corner 131a prevent the core wire from being cut or damaged during riveting, reducing signal transmission instability.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above embodiments are preferred embodiments of this utility model, but not all embodiments. Any equivalent changes to the technical solutions of this utility model made by those skilled in the art after reading this utility model specification are covered by the claims of this utility model.
Claims
1. A connection terminal for crimping a core wire, comprising a contact part (11), a connection stop part (12) and a core wire wrapping part (13), the contact part (11), the connection stop part (12) and the core wire wrapping part (13) being arranged in sequence, the core wire wrapping part (13) being used for crimping a core wire (41) of a coaxial cable (4), characterized in that: both ends of the core wire wrapping part (13) are dovetail closing structures (131); the connection stop part (12) is a slope between the core wire wrapping part (13) and the contact part (11), used for resisting the longitudinal protrusion of the core wire (41). Both ends of the core wire wrapping part (13) are bent towards the middle to form a semi-cylindrical cavity, and the two ends of the dovetail closing structure (131) are in the same horizontal plane. The inside of the core wire wrapping part (13) is provided with at least one raised reinforcing rib (132).
2. The connecting terminal according to claim 1, characterized by The reinforcing rib (132) is provided with two smooth curved parallel protrusions perpendicular to the core wire (41).
3. The connecting terminal according to claim 1, characterized by The contact part (11) comprises a bottom body (111) and support arms (112) extending from both sides of the bottom body (111), the extension direction of the support arms (112) is opposite to the bending direction of the core wire wrapping part (13), and the bottom body (111) is above the bottom of the core wire wrapping part (13).
4. The connecting terminal according to claim 3, characterized by The tail end of the core wire wrapping part (13) is chamfered (133), and the edge of the dovetail closing structure (131) is provided with a beveled corner (131a).
5. The connecting terminal according to claim 2, characterized by The coaxial cable (4) comprises an insulating base (2), a shell (3) and the connection terminal (1) according to any one of claims 1-6, the shell (3) comprises a joint part (31), a buckling part (32) and a wire clamping part (33), the inside of the joint part (31) is provided with a plurality of fixed protrusions (311), the joint part (31) and the buckling part (32) jointly fix the insulating base (2) which is internally fitted with the connection terminal (1), and the wire clamping part (33) is connected with the shielding layer (43) and the outer skin (44) of the coaxial cable (4).
6. The connection terminal according to claim 1, characterized by The insulating base (2) comprises a base body (21) for mounting the connection terminal (1), a through-hole structure (22) for embedding and exposing the contact part (11) and matching the support arms (112), a gland part (23) for fixing the connection terminal (1), and a plurality of groove parts (24) for mutual fixation with the fixed protrusions (311).
7. A connector characterized by comprising: The wire clamping part (33) comprises a first wire clamping arm (331) and a second wire clamping arm (332), the first wire clamping arm (331) directly clamps the shielding layer (43) of the coaxial cable (4), and the second wire clamping arm (332) directly clamps the outer skin (44) outside the coaxial cable (4).
8. The connector of claim 7, wherein, The joint part (31) is a cylindrical structure, and the upper edge of the cylindrical structure is provided with a positioning groove (312) for positioning connection with a mating connector.
9. The connector of claim 7, wherein, 10. The connector of claim 7, wherein,