Bushing and sleeve front end structure integral type resistance welded shield, cable clamp, connector

Abstract

The sleeve and sleeve front end structure integral type welding shield sleeve, including for and connector outer shell welding fixed front end, provided with boss rear end, the outer wall of the welding shield sleeve is provided with the installation part for and sleeve welding fixed, the installation part, boss and the outer wall of the welding shield sleeve jointly constitute a groove for binding cable shielding layer; The outer wall of the boss is provided with a taper surface matched with the taper surface of the inner wall of the front end of the shielding ring to compress the cable shielding layer. The integral type welding shield sleeve provided by the application has the sleeve structure and the tail clamp sleeve front end structure of the existing connector cable clamp at the same time, the electrical shielding continuity is more reliable, and the risk of positioning failure and electrical continuity failure caused by the conventional sleeve structure is avoided.

Description

Technical Field

[0001] This invention belongs to the field of electrical connection device technology, specifically relating to an integrated transfer shielding sleeve that combines a bushing structure and a tail clip sleeve front end structure, a cable clamp using the transfer shielding sleeve, and a connector using the cable clamp. Background Technology

[0002] Please see Figure 1 , Figure 2 and Figure 3 Currently, cable clamps with shielding functions typically include a bushing 1 for securing the cable shielding braid. This bushing 1 has two potential structural failure points within the cable clamp tail sleeve 2:

[0003] The first potential hazard is the risk of positioning failure of the bushing within the cable clamp tail sleeve. The radial positioning of bushing 1 and tail sleeve 2 is primarily achieved through the engagement of a rivet 101 protruding from the outer wall of the bushing's front end with a groove 201 inside the front end of tail sleeve 2 to prevent rotation. This structure is prone to riveting failure in environments with strong vibrations. After failure, the radial rotation of bushing 1 can cause the cable shielding braid attached to the bushing to rotate and twist, potentially leading to shielding breakage, the generation of excess material, and ultimately, a failure in shielding continuity.

[0004] The second potential hazard is the risk of electrical continuity failure between the bushing and the connector housing. The electrical continuity between bushing 1 and connector housing 3 is primarily achieved through the engagement and clamping of the end teeth 102 at the front end of bushing 1 and the end teeth 301 at the end of connector housing 3. This structure is prone to connection failure in environments with strong vibrations. For example, if the tail nut 4 becomes loose and cannot be properly engaged, or if the tail nut 5 becomes loose and cannot allow the shielding ring 6 to press against bushing 1, gaps will appear in the engagement of the end teeth between the bushing and the connector housing, leading to a failure of shielding continuity. Summary of the Invention

[0005] To avoid the failure risk of existing connector cable clamps due to bushing structure defects, this invention proposes an integrated transfer shielding sleeve that combines a bushing structure and a tail clamp sleeve front end structure.

[0006] The technical solution of the present invention is achieved by the following technical solution. The bushing and sleeve front end integrated transfer welding shielding sleeve proposed by the present invention includes a front end for welding and fixing to the connector housing, and a rear end with a boss. The outer wall of the transfer welding shielding sleeve has a protruding mounting part for welding and fixing to the sleeve. The mounting part, the boss, and the outer wall of the transfer welding shielding sleeve together form a groove for bundling the cable shielding braided layer. The outer wall of the boss is configured to cooperate with the conical surface of the front end of the inner wall of the shielding ring to press the aforementioned cable shielding braided layer.

[0007] Furthermore, the front end of the transfer welding shield is provided with a step for positioning and welding to cooperate with the step at the rear end of the connector housing.

[0008] Furthermore, the mounting portion includes a support portion extending radially on the outer wall of the transfer welding shield sleeve, and a connecting portion extending axially at the outer edge of the support portion for welding and fixing to a boss on the outer wall of the sleeve.

[0009] The technical solution of the present invention is also implemented by the following technical solution. The cable clamp proposed according to the present invention includes a sleeve, a shielding ring and a rubber ring installed in the sleeve, a tail nut installed at the rear end of the sleeve, and also includes the aforementioned bushing and sleeve front end structure integrated transfer-welded shielding sleeve. The mounting part of the transfer-welded shielding sleeve is welded and fixed to the front end of the sleeve. The rear end of the transfer-welded shielding sleeve is inserted into the sleeve so that the conical surface of the outer wall of the boss matches the conical surface of the front end of the inner wall of the shielding ring to compress the cable shielding braided layer.

[0010] Furthermore, the mounting portion of the transfer welding shield sleeve includes a support portion extending radially on the outer wall of the transfer welding shield sleeve and a connecting portion extending axially at the outer edge of the support portion, the connecting portion being welded and fixed to a boss on the outer wall of the sleeve.

[0011] The technical solution of the present invention is also implemented by the following technical solution. According to the present invention, a connector using the aforementioned cable clamp is provided, wherein the front end of the transfer shielding sleeve is welded and fixed to the connector housing.

[0012] Furthermore, the front end of the transfer welding shielding sleeve is provided with a step, which cooperates with the step at the rear end of the connector housing for positioning and welding fixation.

[0013] The integrated transfer welding shielding sleeve proposed in this invention combines the bushing structure of existing connector cable clamps and the front end structure of the tail clamp sleeve. It is fixed to the sleeve with the tail clamp cap structure removed by welding the mounting part protruding on the outer wall, and fixed to the connector housing by welding the front end. The electrical shielding continuity is more reliable, avoiding the risk of positioning failure and electrical continuity failure caused by conventional bushing structures.

[0014] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a structural diagram of an existing connector cable clamp.

[0016] Figure 2 This is a schematic diagram of the bushing structure in an existing connector.

[0017] Figure 3 This is a schematic diagram of the sleeve structure in an existing connector.

[0018] Figure 4 This is a schematic diagram of the structure of an integrated transfer welding shielding sleeve for the front end of a bushing and sleeve according to the present invention.

[0019] Figure 5 This is a schematic diagram of the cable clamp using the transfer welding shield sleeve proposed in this invention (some components are missing).

[0020] [Explanation of Key Component Symbols]

[0021] 1: Bushing 101: Rivet 102: End teeth

[0022] 2: Sleeve 201: Groove 3: Connector housing

[0023] 301: End tooth; 4: Tail clip nut; 5: Tail nut

[0024] 6: Shielding ring; 7: Transfer soldering shielding sleeve; 701: Boss.

[0025] 702: Support part; 703: Connecting part; 704: Groove

[0026] 2': Sleeve Detailed Implementation

[0027] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. In this embodiment, the position of the connector housing 3 is defined as "front" and the position of the tail nut is defined as "rear".

[0028] Example 1

[0029] Please see Figure 4 Based on the operational requirements of connectors (such as nuclear power connectors) that are resistant to high temperature, high radiation, and high sealing performance, this invention proposes an integrated transfer shielding sleeve with a novel structure. This transfer shielding sleeve 7 has both the bushing 1 structure and the front end structure of the tail clip sleeve 2 included in the existing connector cable clamp.

[0030] The outer wall of the transfer welding shielding sleeve 7 is provided with a mounting portion for fixing to the front end of the sleeve 2'. In this embodiment, the mounting portion includes a support portion 702 extending radially on the outer wall of the transfer welding sleeve and a connecting portion 703 extending axially along the outer edge of the support portion. During assembly, the connecting portion 703 engages with the boss on the outer wall of the sleeve 2' for positioning, and then the end face of the connecting portion 703 is fixed to the front end face of the boss on the outer wall of the sleeve using laser welding, thereby achieving axial and radial positioning of the transfer welding sleeve 7 and the sleeve 2'. Simultaneously, the front end of the transfer welding shielding sleeve 7 is positioned with the connector housing 3 through a step engagement, and then the stepped surface of the front end of the transfer welding shielding sleeve is fixed to the end face of the connector housing using laser welding. Through the aforementioned design, the present invention removes the tail clip cap structure of the existing connector cable clamp sleeve 2 to form the sleeve 2', eliminating the potential risk of shielding continuity failure due to loosening of the tail clip cap in a strong vibration environment. Meanwhile, the present invention integrates the front end structure of the sleeve 2 onto the transfer welding shield sleeve, so that the transfer welding shield sleeve 7 can be directly welded to the connector housing 3 through the front end for axial and radial positioning, eliminating the hidden danger of shield continuity failure caused by the radial rotation of the bushing due to riveting failure in a strong vibration environment.

[0031] The rear end of the transfer-welding shielding sleeve 7 has a boss 701 with a conical outer wall, which engages with the conical surface at the front end of the inner wall of the shielding ring 6 installed inside the sleeve 2' to compress the cable shielding braid under axial pressure. The support part 702, the boss 701, and the outer wall of the transfer-welding shielding sleeve 7 together form a groove 704, which is used to bundle the cable shielding braid. Through the aforementioned design, the present invention integrates the bushing structure included in the existing connector cable clamp into the rear end of the transfer-welding shielding sleeve, enabling reliable electrical continuity between the cable shielding braid and the connector housing.

[0032] Example 2

[0033] Please see Figure 5 The cable clamp using the transfer welding shielding sleeve shown in Embodiment 1 includes a sleeve 2', a shielding ring 6 installed inside the sleeve, a rubber ring, and a tail nut 5 installed at the rear end of the sleeve. The connecting part 703 of the transfer welding shielding sleeve is positioned by cooperating with the boss on the outer wall of the sleeve 2' and is fixed by laser welding. The rear end of the transfer welding shielding sleeve is inserted into the sleeve 2' so that the conical surface of the outer wall of the boss 701 cooperates with the conical surface at the front end of the inner wall of the shielding ring 6.

[0034] Example 3

[0035] Please see Figure 5 The connector using the cable clamp shown in Embodiment 2 has its front end of the transfer welding shield sleeve positioned and its end of the connecting housing by a step engagement and fixed by laser welding.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A bushing and sleeve front end structure integrally welded shielding sleeve, characterized in that... It includes a front end for welding and fixing to the connector housing and a rear end with a boss. The outer wall of the transfer welding shield sleeve has a protruding mounting part for welding and fixing to the sleeve. The mounting part, the boss and the outer wall of the transfer welding shield sleeve together form a groove for bundling the cable shield braided layer. The outer wall of the boss is designed to cooperate with the conical surface of the front end of the inner wall of the shielding ring to press the aforementioned cable shield braided layer.

2. The bushing and sleeve front end structure integrated transfer welding shielding sleeve according to claim 1, characterized in that... The front end of the transfer welding shield is provided with a step for positioning and welding to cooperate with the step at the rear end of the connector housing.

3. The bushing and sleeve front end structure integrated transfer welding shielding sleeve according to claim 1, characterized in that... The mounting portion includes a support portion extending radially on the outer wall of the transfer welding shield sleeve, and a connecting portion extending axially at the outer edge of the support portion for welding and fixing to a boss on the outer wall of the sleeve.

4. A cable clamp, comprising a sleeve, a shielding ring and a rubber ring installed inside the sleeve, and a tail nut installed at the rear end of the sleeve, characterized in that... It also includes the bushing and sleeve front end structure integrated transfer welding shielding sleeve as described in claim 1, wherein the mounting part of the transfer welding shielding sleeve is welded and fixed to the front end of the sleeve, and the rear end of the transfer welding shielding sleeve is inserted into the sleeve so that the conical surface of the outer wall of the boss matches the conical surface of the front end of the inner wall of the shielding ring to compress the cable shielding braided layer.

5. The cable clamp according to claim 4, characterized in that... The mounting portion of the transfer welding shield sleeve includes a support portion extending radially on the outer wall of the transfer welding shield sleeve and a connecting portion extending axially at the outer edge of the support portion, the connecting portion being welded and fixed to a boss on the outer wall of the sleeve.

6. A connector employing the cable clamp of claim 4, characterized in that... The front end of the transfer welding shield is welded and fixed to the connector housing.

7. The connector according to claim 6, characterized in that... The front end of the transfer welding shield is provided with a step, which cooperates with the step at the rear end of the connector housing for positioning and welding fixation.

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