新型耐插拔的高效屏蔽结构及应用其的车载同轴连接器

Abstract

本实用新型公开了新型耐插拔的高效屏蔽结构及应用其的车载同轴连接器。该高效屏蔽结构包括:屏蔽壳本体以及锁紧套；屏蔽壳本体尾端的固线端连接线缆且其头端为和母端子装配的插接端，插接端外壁圆周阵列设有多个弹性齿片且其内壁圆周阵列设有多个触块，弹性齿片压贴母端子且触块紧贴合母端子，插接端内侧形成小直径的紧固环，锁紧套套接在紧固环外，且锁紧套的锁接孔过盈连接紧固环的定位锁块，形成高强度的屏蔽结构；锁紧套后端被外塑壳的弹性挡柱抵紧贴合。本实用新型具有高强度结构的屏蔽结构，耐插拔，使用寿命长，且信号损耗少，有效保证射频信号的高效传输的效果。

Claims

1. A novel plug-resistant, high-efficiency shielding structure, characterized by, Includes: a shielding shell body (1) made of a good conductive material and a locking sleeve (2) made of a high-strength metal material; The shield shell body (1) has an open-shaped wire-fixing end (11) at the tail end and an annular plug-in end (12) at the head end. The plug-in end (12) has multiple openings (121) arranged in a circumferential array on the outer wall and multiple elastic teeth (122) integrally connected in each opening (121). The inner wall of the front end of the plug-in end (12) is integrally provided with several protruding contact blocks (123). A small-diameter fastening ring (13) is formed on the inner side of the plug-in end (12). The outer wall of the fastening ring (13) is symmetrically provided with multiple protruding positioning locking blocks (14). The locking sleeve (2) is annular and its outer peripheral wall is provided with a locking hole (21) that cooperates with the positioning locking block (14). The locking sleeve (2) is sleeved on the outside of the fastening ring (13), and its locking hole (21) is interference-connected to the positioning locking block (14), thereby forming a high-strength shielding structure. After the cable is inserted into the fixed end (11), it is riveted and connected. The female terminal is inserted through the gap of the plug end (12) and the fastening ring (13) is interference-fitted. The elastic toothed plate (122) presses against the female terminal and the contact block (123) is tightly attached to the female terminal. The rear end of the locking sleeve (2) is pressed against the elastic stop post (011) of the outer plastic shell (01).

2. The novel plug-resistant, high-efficiency shielding structure of claim 1, wherein, The outer wall of the fastening ring (13) is symmetrically provided with two sets of positioning locking blocks (14). Each set of positioning locking blocks (14) includes a front locking block and a rear locking block. The outer peripheral wall of the locking sleeve (2) is symmetrically provided with two sets of locking holes (21). Each set of front and rear locking holes (21) is respectively interference-fitted to the front locking block and the rear locking block.

3. The novel plug-resistant, high-efficiency shielding structure of claim 2, wherein, The front locking block and the rear locking block are two right-angled triangular prisms with opposite sharp corners, and the locking hole (21) is two rectangular openings.

4. The novel, pluggable, and highly efficient shielding structure according to claim 2, characterized in that, The locking sleeve (2) has multiple protruding rectangular first reinforcing blocks (22) integrally arranged in a circumferential array on the outer wall of the rear end, and the first reinforcing blocks (22) tightly press against the inner wall of the outer plastic shell (01); Alternatively, the outer wall of the plug-in end (12) may be provided with a plurality of protruding second reinforcing blocks (124) arranged in a circular array, and the second reinforcing blocks (124) press tightly against the inner wall of the outer plastic shell (01).

5. The novel plug-resistant, high-efficiency shielding structure according to any one of claims 1 to 4, characterized in that, The locking sleeve (2) is made of 304 stainless steel, and the shielding shell body (1) is made of C5210 phosphor bronze.

6. The novel plug-resistant, high-efficiency shielding structure of claim 1, wherein, The contact block (123) is a rectangular protrusion. The front end of the contact block (123) is provided with an inclined guide surface (125) and the upper surface is provided with a first rounded corner (126). Each of the contact blocks (123) is located between two elastic teeth (122), increasing the contact area and improving the shielding efficiency.

7. The novel plug-resistant, high-efficiency shielding structure of claim 1, wherein A small-diameter connecting tube (16) is also provided between the fastening ring (13) and the wire fixing end (11), and a first shoulder (15) is formed between the connecting tube (16) and the fastening ring (13). Alternatively, the fixed end (11) may be V-shaped or U-shaped, and the inner wall of the fixed end (11) may be formed with reinforcing ribs (111) and anti-detachment blocks (112).

8. The novel plug-resistant, high-efficiency shielding structure of claim 1, wherein, The shield shell body (1) is formed by punching and bending the strip. The rear end of the fixed wire end (11) is integrally connected to the positioning plate (18) through the connecting end (17).

9. A coaxial connector for use in a vehicle, characterized by include: The novel, pluggable, high-efficiency shielding structure of any one of claims 1 to 8, which is fitted into the outer plastic shell (01) and the shaft hole (010) of the outer plastic shell (01).

10. The coaxial connector of claim 9, wherein, One end of the shaft hole (010) is fixedly connected to the fixed wire end (11) and the other end of the shaft hole is fixedly connected to the plug end (12). The shaft hole (010) has a notch (012) in the middle and an elastic stop post (011) integrally provided in the notch (012). The locking sleeve (2) passes through the middle of the shaft hole (010) and the elastic stop post (011) abuts against the locking sleeve (2).

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