A three-core plug-in rotatable DC connector

By designing a rotatable plug structure and wire connection method in the three-core DC connector, the problem that existing DC connectors cannot meet the requirements of multi-functional and flexible design is solved, achieving 360-degree rotation and stable connection, thus improving the user experience.

CN224595990UActive Publication Date: 2026-08-04JIANGMEN SHENGHAO LIGHTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN SHENGHAO LIGHTING CO LTD
Filing Date
2025-08-20
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing two-core pluggable and rotatable DC connector cannot meet the requirements of multi-functional design, while the three-core DC connector cannot be rotated, resulting in poor performance.

Method used

Design a three-core pluggable and rotatable DC connector. By sequentially wrapping an inner pin, a middle female socket, and an outer male socket inside the male and female plugs, and providing wire through holes on the inside of the connector body, 360-degree rotation and flexible connection can be achieved.

Benefits of technology

The DC plug features a multi-functional design, meeting the flexibility requirements of power supply + data signal or power supply + ground wire, improving performance and stability, and avoiding the problem of plug breakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a three-pin pluggable and rotatable DC connector, including a first connecting body and a second connecting body connected to the first connecting body. A circular male plug is installed on the inner side of the first connecting body, and a circular female plug corresponding to the circular male plug is installed on the inner side of the second connecting body. The inner side of the circular male plug is sequentially wrapped with an inner pin, a middle female socket, and an outer male socket from the inside out. The inner side of the circular female plug is sequentially wrapped with an inner socket, a middle male socket, and an outer female socket from the inside out. The inner pin is inserted into the inner socket, the middle male socket is inserted into the middle female socket, and the outer male socket is inserted into the outer female socket. This utility model has a stable structure, and the circular male plug can rotate 360 ​​degrees relative to the circular female plug, meeting the requirements of multi-functional design and the flexibility requirements of power + data signal or power + ground design, resulting in good performance.
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Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a three-core pluggable and rotatable DC connector. Background Technology

[0002] DC connectors are commonly used adapters in daily life, primarily used for voltage and current stabilization, power control, and DC circuit protection. DC connectors typically include male and female connectors. Commercially available DC connectors generally include two-core and three-core connectors. However, existing two-core pluggable and rotatable DC connectors do not meet the requirements of multi-functional designs; while three-core pluggable DC connectors are non-rotatable, failing to meet the flexibility requirements of grounding or data lines, resulting in unsatisfactory performance. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide a three-core pluggable and rotatable DC connector that meets the requirements of multi-functional design and has good performance.

[0004] This utility model is achieved through the following technical solution:

[0005] A three-pin pluggable and rotatable DC connector includes a first connecting body and a second connecting body connected to the first connecting body. A circular male plug is installed on the inner side of the first connecting body, and a circular female plug corresponding to the circular male plug is installed on the inner side of the second connecting body. The inner side of the circular male plug is wrapped with an inner pin, a middle female socket, and an outer male socket in sequence from the inside to the outside. The inner side of the circular female plug is wrapped with an inner socket, a middle male socket, and an outer female socket in sequence from the inside to the outside. The inner pin is inserted into the inner socket, the middle male socket is inserted into the middle female socket, and the outer male socket is inserted into the outer female socket.

[0006] Furthermore, the inner connector is connected to a first wire, the middle female connector is connected to a second wire, and the outer male connector is connected to a third wire.

[0007] Furthermore, the inner side of the first connecting body is provided with a first opening for the first wire, the second wire and the third wire to pass through.

[0008] Furthermore, the inner socket is connected to a fourth wire, the middle male socket is connected to a fifth wire, and the outer female socket is connected to a sixth wire.

[0009] Furthermore, the inner side of the second connecting body is provided with a second opening for the fourth, fifth and sixth wires to pass through.

[0010] Furthermore, the circular male plug and the circular female plug are insulators.

[0011] Furthermore, both the first connecting body and the second connecting body are circular connecting bodies, with the second connecting body inserted into the first connecting body.

[0012] Furthermore, an insulating sleeve is provided at the end of the external male connector.

[0013] Furthermore, the side of the first connecting body is provided with an internal threaded hole.

[0014] Furthermore, the outer side of the second connecting body is provided with external threads.

[0015] Compared to existing technologies, this utility model features an inner male connector, a middle female connector sleeve, and an outer male connector sleeve, all wrapped sequentially from the inside out on the inner side of the circular male connector. Similarly, an inner female connector, a middle male connector sleeve, and an outer female connector sleeve are also wrapped sequentially from the inside out on the inner side of the circular female connector. The inner male connector is inserted into the inner connector sleeve, the middle male connector sleeve into the middle female connector sleeve, and the outer male connector sleeve into the outer female connector sleeve. The circular male connector can rotate relative to the circular female connector, allowing for free assembly and replacement of the product. It can rotate 360 ​​degrees, meeting the requirements of multi-functional design and solving the problem of easily broken DC connectors. During insertion, the sub-product can rotate 360 ​​degrees functionally, satisfying the flexible design requirements of power + data signal or power + ground, resulting in excellent performance. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of the three-core pluggable and rotatable DC connector of this utility model;

[0018] Figure 2 This is an exploded view of the first structure of the three-core pluggable and rotatable DC connector of this utility model.

[0019] Figure 3 This is an exploded view of the second structure of the three-core pluggable and rotatable DC connector of this utility model.

[0020] In the diagram: 1-First connecting body; 2-Second connecting body; 3-Round male plug; 4-Round female plug; 5-Inner pin; 6-Middle female socket; 7-Outer male socket; 8-Inner socket; 9-Middle male socket; 10-Outer female socket; 11-First wire; 12-Second wire; 13-Third wire; 14-First opening; 15-Fourth wire; 16-Fifth wire; 17-Sixth wire; 18-Insulating sleeve; 19-Internal threaded hole; 20-External thread. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 3 The present invention discloses a three-core pluggable and rotatable DC connector, comprising a first connecting body 1 and a second connecting body 2 connected to the first connecting body 1. A circular male plug 3 is installed on the inner side of the first connecting body 1, and a circular female plug 4 corresponding to the circular male plug 3 is installed on the inner side of the second connecting body 2. The inner side of the circular male plug 3 is wrapped with an inner pin 5, a middle female plug sleeve 6 and an outer male plug sleeve 7 from the inside to the outside. The inner side of the circular female plug 4 is wrapped with an inner plug sleeve 8, a middle male plug sleeve 9 and an outer female plug sleeve 10 from the inside to the outside. The inner pin 5 is inserted into the inner plug sleeve 8, the middle male plug sleeve 9 is inserted into the middle female plug sleeve 6, and the outer male plug sleeve 7 is inserted into the outer female plug sleeve 10. The round male plug 3 can rotate relative to the round female plug 4, allowing the product to be freely assembled and replaced. It can rotate 360 ​​degrees, meeting the requirements of multi-functional design and solving the problem of DC plugs being easily broken. When plugged in, the sub-product end can rotate 360 ​​degrees functionally, meeting the flexible design requirements of power + data signal or power + ground wire, and has a good performance.

[0023] The inner pin 5 is connected to the first wire 11, the middle female connector 6 is connected to the second wire 12, and the outer male connector 7 is connected to the third wire 13, which facilitates the conductive connection and data transmission connection of the round male connector 3.

[0024] The inner side of the first connecting body 1 is provided with a first opening 14 for the first wire 11, the second wire 12 and the third wire 13 to pass through, so as to facilitate the connection and arrangement of the first wire 11, the second wire 12 and the third wire 13.

[0025] The inner socket 8 is connected to the fourth wire 15, the middle male socket 9 is connected to the fifth wire 16, and the outer female socket 10 is connected to the sixth wire 17, which facilitates the conductive connection and data transmission connection of the round female plug 4.

[0026] The inner side of the second connecting body 2 is provided with a second opening for the fourth wire 15, the fifth wire 16 and the sixth wire 17 to pass through, so as to facilitate the connection and arrangement of the fourth wire 15, the fifth wire 16 and the sixth wire 17.

[0027] The round male plug 3 and the round female plug 4 are insulators, which facilitates the insertion between them and effectively prevents short circuits.

[0028] Both the first connecting body 1 and the second connecting body 2 are circular connecting bodies. The second connecting body 2 is inserted into the first connecting body 1, making the circular male plug 3 more stable to rotate relative to the circular female plug 4.

[0029] An insulating sleeve 18 is provided at the end of the male connector 7, which can effectively prevent the male connector 7 from contacting the female connector 6 when under pressure, thereby improving the safety of the device.

[0030] The side of the first connecting body 1 is provided with an internal threaded hole 19, which facilitates the connection and installation of the first connecting body 1.

[0031] The outer side of the second connecting body 2 is provided with external threads 20, which facilitates the connection and installation of the second connecting body 2.

[0032] The first connecting body 1 and the second connecting body 2 can be made of metal or other hard materials to improve robustness. The second connecting body 2 is fitted inside the first connecting body 1, effectively solving the problem of DC plugs being easily broken.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three core, plug-in, plug-out, rotatable DC connector characterized by: The device includes a first connecting body and a second connecting body connected to the first connecting body. A circular male plug is installed on the inner side of the first connecting body, and a circular female plug corresponding to the circular male plug is installed on the inner side of the second connecting body. The inner side of the circular male plug is wrapped with an inner pin, a middle female plug sleeve, and an outer male plug sleeve from the inside to the outside. The inner side of the circular female plug is wrapped with an inner plug sleeve, a middle male plug sleeve, and an outer female plug sleeve from the inside to the outside. The inner pin is inserted into the inner plug sleeve, the middle male plug sleeve is inserted into the middle female plug sleeve, and the outer male plug sleeve is inserted into the outer female plug sleeve.

2. The three-core plug-jack rotatable DC joint of claim 1, wherein: The inner connector is connected to a first wire, the middle female connector is connected to a second wire, and the outer male connector is connected to a third wire.

3. The three-core plug-jack rotatable DC joint of claim 2, wherein: The inner side of the first connecting body is provided with a first opening for the first wire, the second wire and the third wire to pass through.

4. The three-pin pluggable and rotatable DC connector according to claim 1, characterized in that: The inner socket is connected to a fourth wire, the middle male socket is connected to a fifth wire, and the outer female socket is connected to a sixth wire.

5. The tri-conductor plug-jack of claim 4, wherein: The inner side of the second connecting body is provided with a second opening for the fourth, fifth and sixth wires to pass through.

6. The tri-conductor plug-jack of claim 1, wherein: The circular male plug and the circular female plug are insulators.

7. The tri-conductor plug-jack of claim 1, wherein: Both the first connecting body and the second connecting body are circular connecting bodies, and the second connecting body is inserted into the first connecting body.

8. The tri-conductor plug-jack of claim 1, wherein: An insulating sleeve is provided at the end of the external male connector.

9. The tri-conductor plug-jack of claim 1, wherein: The side of the first connecting body is provided with an internal threaded hole.

10. The tri-conductor plug-jack of claim 1, wherein: The outer side of the second connecting body is provided with external threads.