Anti-loosening charging plug device

By using an insulating plate and housing design in the electric vehicle charging plug, the short circuit problem caused by plug loosening is solved, and the anti-loosening performance and durability of the plug device are improved.

CN223809350UActive Publication Date: 2026-01-16PINAVISEN (SUZHOU) ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202423100637.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2026-01-16
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing electric vehicle charging plugs are prone to loosening after prolonged use, leading to poor contact of the pins and potentially causing a short circuit.

Method used

The signal pins are isolated from the power pins using an isolation plate, and the plug assembly is prevented from loosening through the housing and pull ring design. The housing is integrally molded to form a waterproof structure, improving the overall quality and durability of the plug device.

Benefits of technology

It effectively prevents the plug assembly from loosening, avoids short circuits, improves the applicability and durability of the charging plug device, and enhances the stability of the cable assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-loosening charging plug device, which isolates a signal pin from a power supply pin by using an isolating sheet, thereby preventing short circuit of a plug assembly caused by contact between the signal pin and the power supply pin. The outer shell is used for installing the plug assembly and protecting a signal contact pin and a power supply contact pin of the plug assembly at the same time, and by means of the pull ring, butt joint and separation of the plug assembly and equipment needing to be charged are facilitated. The integrally formed shell is beneficial to preventing the plug assembly from loosening, so that the overall quality of the anti-loosening charging plug device is improved, a waterproof structure is formed, the applicability of the anti-loosening charging plug device is improved, meanwhile, the cable assembly can be prevented from loosening, and the durability of the anti-loosening charging plug device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to charging plug technical field especially relates to a charging plug device of anti loosening. BACKGROUND

[0002] With the popularity of electric vehicles, the charging of electric vehicles is also paid more and more attention, the current electric vehicle usually uses the charging plug to connect the electric vehicle and power supply, so as to charge the electric vehicle, and the current plug is assembled by using the same two half shells to fix the power line, therefore, after long time use, the power pin and signal pin of the plug are loose, which can easily cause short circuit. UTILITY MODEL CONTENTS

[0003] In order to overcome the above-mentioned shortcomings, the utility model discloses a charging plug device of anti loosening, signal pin and power plug are isolated by the isolation sheet, so as to prevent the short circuit of plug assembly caused by the contact of signal pin and power pin, the shell body is used for installing plug assembly, and signal pin and power pin of plug assembly are protected, and the pull ring is used, so as to facilitate the butt joint and separation of plug assembly and the equipment needing charging, the integrated shell is beneficial to preventing the loosening of plug assembly, so as to improve the overall quality of the charging plug device of anti loosening, form waterproof structure, improve the applicability of the charging plug device of anti loosening, prevent the loosening of cable assembly, and improve the durability of the charging plug device of anti loosening.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that a charging plug device of anti loosening, comprising:

[0005] Plug assembly, the plug assembly includes signal pin, power pin and plug shell, the isolation sheet is arranged between the power pin and the signal pin, and the isolation sheet is fixed on the plug shell;

[0006] Shell body, the plug assembly is fixed on the shell body, and the shell body is provided with a pull ring away from the plug assembly;

[0007] Cable assembly, the cable assembly is fixed on the shell body, and the cable assembly is connected with the signal pin and the power pin.

[0008] The plug assembly is used for connecting the device needing to be charged, the plug assembly is connected with the device needing to be charged through the signal pin, and the device needing to be charged is connected with the power pin through the power pin, so that the device needing to be charged is charged, the signal pin is isolated from the power pin through the isolation sheet, so that the signal pin and the power pin are prevented from being short-circuited; the shell body is used for installing the plug assembly, and the signal pin and the power pin of the plug assembly are protected, and the plug assembly is connected with the device needing to be charged through the pull ring, and the plug assembly is connected with the device needing to be charged through the pull ring; the cable assembly is used for connecting the power supply with the power pin and the signal pin, so that the external device connected with the plug assembly is charged, and communication is performed with the external device; the integrally formed shell is beneficial to preventing the plug assembly from loosening, so that the overall quality of the anti-loose charging plug device is improved, and a waterproof structure is formed, so that the applicability of the anti-loose charging plug device is improved, and the durability of the anti-loose charging plug device is improved.

[0009] In some embodiments, the anti-loose charging plug device further comprises an inner support assembly, the plug assembly is fixed on the shell body through the inner support assembly, and the inner support assembly is provided with a plug opening, and the plug assembly is connected to the inner support through the plug opening.

[0010] In this technical solution, the support assembly is used for supporting the shell body, so as to provide a containing space for the installation of the plug assembly, and the plug assembly is protected.

[0011] In some embodiments, the shell body is provided with a cable connection end, and the cable assembly is fixed on the shell body through the cable connection end.

[0012] In this technical solution, the cable connection end is used for connecting and fixing the cable assembly.

[0013] In some embodiments, the inner support assembly further comprises a cable opening, and the cable assembly is connected to the plug assembly through the cable opening.

[0014] In this technical solution, the inner support assembly is used for installing and fixing the cable assembly, so as to facilitate the connection of the cable assembly with the plug assembly.

[0015] In some embodiments, the anti-loose charging plug device further comprises a metal crimping ring, and the metal crimping ring is arranged at one end of the cable assembly close to the shell body.

[0016] In this technical solution, the metal crimping ring is used to form an anti-pulling structure, so as to protect the cable assembly and prevent the cable assembly from falling off the plug assembly.

[0017] In some embodiments, the plug housing is provided with a pin cavity, and the signal pin, the power pin and the isolation sheet are arranged in the pin cavity.

[0018] In this technical solution, the pin wall is used to accommodate the signal pin and the power pin, and protects the signal pin and the power pin.

[0019] In some embodiments, the plug assembly further comprises a signal pin tail and a power pin tail, the signal pin tail is arranged at one end of the signal pin away from the pin cavity, and the power pin tail is arranged at one end of the power pin away from the pin cavity.

[0020] In this technical solution, the signal pin tail is used to connect the signal pin with other equipment, so that the plug assembly communicates with other equipment, and the power pin tail is used to connect the power pin, so that the current is introduced into the power pin.

[0021] In some embodiments, the signal pin is connected to the cable assembly through the signal pin tail, and the power pin is connected to the cable assembly through the power pin tail.

[0022] In this technical solution, the signal pin tail facilitates the installation and fixation of the cable assembly, thereby increasing the firmness of the plug assembly and the cable assembly.

[0023] In some embodiments, the plug assembly further comprises a pin tail baffle, the pin tail baffle is arranged between the power pin tail and the signal pin tail, and the pin tail baffle is fixed on the plug housing.

[0024] In this technical solution, the pin tail baffle is used to isolate the signal pin tail and the power pin tail, so as to prevent the signal pin tail and the power pin tail from being short-circuited.

[0025] In some embodiments, the isolation sheet and the pin tail baffle are made of insulating material.

[0026] In this technical solution, the insulating material is used to prevent the signal pin and the power pin from being short-circuited, and the signal pin tail and the power pin tail from being short-circuited.

[0027] The beneficial effects of the utility model are that the signal pin and the power pin are isolated by the isolation sheet, so as to prevent the signal pin and the power pin from being short-circuited due to contact; the shell body is used to install the plug assembly, and protects the signal pin and the power pin of the plug assembly, and the plug assembly and the equipment to be charged are docked and separated by the pull ring; the integrated shell is beneficial to preventing the plug assembly from loosening, thereby improving the overall quality of the anti-loosening charging plug device, forming a waterproof structure, and improving the applicability of the anti-loosening charging plug device, preventing the cable assembly from loosening, and improving the durability of the anti-loosening charging plug device. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is whole schematic view of the anti-loose charging plug device of one embodiment of the utility model;

[0029] Figure 2 It is schematic view of each part of the anti-loose charging plug device of one embodiment of the utility model;

[0030] Figure 3 It is plug assembly schematic of the anti-loose charging plug device of one embodiment of the utility model Figure 1 ;

[0031] Figure 4 It is plug assembly schematic of the anti-loose charging plug device of one embodiment of the utility model Figure 2 ;

[0032] In the drawing: 1, plug assembly;11, signal pin;12, power pin;13, plug shell;131, pin cavity;14, isolation sheet;15, signal pin tail;16, power pin tail;17, pin tail baffle;2, outer shell;21, pull ring;3, inner support assembly;31, plug opening;32, cable opening;4, cable assembly;41, metal crimp ring. DETAILED DESCRIPTION

[0033] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0034] With reference to the drawings Figure 1 to the drawings Figure 3 The utility model provides a kind of anti-loose charging plug device, comprising:

[0035] Plug assembly 1, the plug assembly 1 includes signal pin 11, power pin 12 and plug shell 13, the power pin 12 and the signal pin 11 between being provided with isolation sheet 14, the isolation sheet 14 is fixed on the plug shell 13;

[0036] Outer shell 2, the plug assembly 1 is fixed on the outer shell 2, the outer shell 2 is provided with pull ring 21 on the side away from the plug assembly 1;

[0037] Cable assembly 4, the cable assembly 4 is fixed on the outer shell 2, and the cable assembly 4 is connected signal pin 11 and power pin 12.

[0038] The plug assembly 1 is used to connect to a device that needs to be charged. The plug assembly 1 establishes an information connection with the device using signal differential and electrically connects to the device using power pins 12, thereby enabling charging. An insulating plate 14 isolates the signal pins 11 from the power pins 12, preventing short circuits caused by contact between the signal pins 11 and power pins 12. The housing 2 is used to mount the plug assembly 1 and protect the signal pins 11 and power pins 12. A pull ring 21 facilitates the connection and disconnection of the plug assembly 1 from the device. The cable assembly 4 connects the power supply to the power pins 12 and signal pins 11, enabling charging of the external device connected to the plug assembly 1 and communication with the external device. The one-piece molded housing helps prevent the plug assembly 1 from loosening, improving the overall quality of the anti-loosening charging plug device and forming a waterproof structure, thus enhancing the applicability of the anti-loosening charging plug device. It also prevents the cable assembly 4 from loosening, thereby improving the durability of the anti-loosening charging plug device.

[0039] Continue to combine with the appendix Figure 2 As shown, in some embodiments, the anti-loosening charging plug device further includes an inner support component 3. The plug component 1 is fixed to the outer shell 2 by the inner support component 3. The inner support component 3 is provided with a plug opening 31. The plug component 1 is connected to the inner support through the plug opening 31. The support component is used to support the outer shell 2, thereby providing space for the installation of the plug component 1 and protecting the plug component 1.

[0040] Continue to combine with the appendix Figure 1 and attached Figure 2 As shown, in some embodiments, the outer casing 2 is provided with a cable connection end, and the cable assembly 4 is fixed to the outer casing 2 through the cable connection end, which is used to connect and fix the cable assembly 4.

[0041] Continue to combine with the appendix Figure 2 As shown, in some embodiments, the inner support component 3 further includes a cable opening 32, through which the cable assembly 4 is connected to the plug assembly 1. The inner support component 3 is used to install and fix the cable assembly 4, so as to facilitate the connection of the cable assembly 4 to the plug assembly 1.

[0042] Continue to combine with the appendix Figure 2 As shown, in some embodiments, the anti-loosening charging plug device further includes a metal crimping ring 41, which is disposed at one end of the cable assembly 4 near the housing 2. The metal crimping ring 41 is used to form an anti-pull-out structure to protect the cable assembly 4 and prevent the cable assembly 4 from falling off the plug assembly 1.

[0043] With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a plug shell 13, a signal pin 11, a power pin 12 and an isolation sheet 14, the signal pin 11 and the power pin 12 are arranged in the plug shell 13, and the isolation sheet 14 is arranged between the signal pin 11 and the power pin 12. Figure 3 With reference to the accompanying drawings, in some embodiments, the plug shell 13 is provided with a pin cavity 131, the signal pin 11, the power pin 12 and the isolation sheet 14 are arranged in the pin cavity 131, and a pin wall is used to accommodate the signal pin 11 and the power pin 12 and protect the signal pin 11 and the power pin 12.

[0044] With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a signal pin tail 15 and a power pin tail 16, the signal pin tail 15 is arranged at one end of the signal pin 11 away from the pin cavity 131, and the power pin tail 16 is arranged at one end of the power pin 12 away from the pin cavity 131, the signal pin tail 15 is used to connect the signal pin 11 with other devices, so that the plug assembly 1 communicates with other devices, and the power pin tail 16 is used to connect the power pin 12, so as to guide current into the power pin 12. Figure 2 Figure 4 With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a signal pin tail 15 and a power pin tail 16, the signal pin tail 15 is arranged at one end of the signal pin 11 away from the pin cavity 131, and the power pin tail 16 is arranged at one end of the power pin 12 away from the pin cavity 131, the signal pin tail 15 is used to connect the signal pin 11 with other devices, so that the plug assembly 1 communicates with other devices, and the power pin tail 16 is used to connect the power pin 12, so as to guide current into the power pin 12.

[0045] With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a signal pin tail 15 and a power pin tail 16, the signal pin tail 15 is arranged at one end of the signal pin 11 away from the pin cavity 131, and the power pin tail 16 is arranged at one end of the power pin 12 away from the pin cavity 131, the signal pin tail 15 is used to connect the signal pin 11 with other devices, so that the plug assembly 1 communicates with other devices, and the power pin tail 16 is used to connect the power pin 12, so as to guide current into the power pin 12. Figure 2 With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a signal pin tail 15 and a power pin tail 16, the signal pin tail 15 is arranged at one end of the signal pin 11 away from the pin cavity 131, and the power pin tail 16 is arranged at one end of the power pin 12 away from the pin cavity 131, the signal pin tail 15 is used to connect the signal pin 11 with other devices, so that the plug assembly 1 communicates with other devices, and the power pin tail 16 is used to connect the power pin 12, so as to guide current into the power pin 12.

[0046] Figure 2 With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a signal pin tail 15 and a power pin tail 16, the signal pin tail 15 is arranged at one end of the signal pin 11 away from the pin cavity 131, and the power pin tail 16 is arranged at one end of the power pin 12 away from the pin cavity 131, the signal pin tail 15 is used to connect the signal pin 11 with other devices, so that the plug assembly 1 communicates with other devices, and the power pin tail 16 is used to connect the power pin 12, so as to guide current into the power pin 12. Figure 4 With reference to the accompanying drawings, in some embodiments, the plug assembly 1 further comprises a signal pin tail 15 and a power pin tail 16, the signal pin tail 15 is arranged at one end of the signal pin 11 away from the pin cavity 131, and the power pin tail 16 is arranged at one end of the power pin 12 away from the pin cavity 131, the signal pin tail 15 is used to connect the signal pin 11 with other devices, so that the plug assembly 1 communicates with other devices, and the power pin tail 16 is used to connect the power pin 12, so as to guide current into the power pin 12.

[0047] In some embodiments, the isolation sheet 14 and the pin tail baffle 17 are made of insulating material, which prevents the signal pin 11 and the power pin 12 from being short-circuited and the signal pin tail 15 and the power pin tail 16 from being short-circuited.

[0048] ​​In summary, the utility model provides a kind of anti-loose charging plug device, signal contact pin is isolated from power plug by using isolating sheet, to prevent signal contact pin and power contact pin contact from causing plug assembly short circuit;Shell body is used to install plug assembly, while protecting plug assembly signal contact pin and power contact pin, and by using pull ring, it is convenient for plug assembly and the docking and separation of the equipment that need to be charged;The shell of integrated molding is beneficial to prevent the loosening of plug assembly, to improve the overall quality of anti-loose charging plug device, and form waterproof structure, to improve the applicability of anti-loose charging plug device, while it can prevent cable assembly loosening, to improve the durability of anti-loose charging plug device.

[0049] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model, and any equivalent changes or modifications made according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A charging plug device for preventing loosening, characterized in that, The utility model relates to a plug assembly, an outer shell, a cable assembly and an inner support assembly. The plug assembly includes a signal pin, a power pin and a plug shell, an isolation sheet is arranged between the power pin and the signal pin, and the isolation sheet is fixed to the plug shell. The outer shell is arranged with a pull ring on the side away from the plug assembly. The cable assembly is fixed to the outer shell and connects the signal pin and the power pin. The inner support assembly is arranged with a plug opening, and the plug assembly is connected to the inner support through the plug opening. The outer shell is arranged with a cable connecting end, and the cable assembly is fixed to the outer shell through the cable connecting end.

2. The anti-loose charging plug device according to claim 1, wherein, The inner support assembly is also arranged with a cable opening, and the cable assembly connects the plug assembly through the cable opening.

3. The anti-loose charging plug device of claim 1, wherein, The utility model also includes a metal crimping ring arranged at the end of the cable assembly close to the outer shell.

4. The anti-loose charging plug device of claim 1, wherein, The plug shell is arranged with a pin cavity, and the signal pin, the power pin and the isolation sheet are arranged in the pin cavity.

5. The anti-loose charging plug device according to claim 4, wherein, The plug assembly is also arranged with a signal pin tail and a power pin tail, the signal pin tail is arranged at the end of the signal pin away from the pin cavity, and the power pin tail is arranged at the end of the power pin away from the pin cavity.

6. The anti-loose charging plug device according to claim 5, wherein, The signal pin connects the cable assembly through the signal pin tail, and the power pin connects the cable assembly through the power pin tail.

7. The anti-loose charging plug device according to claim 6, wherein, The plug assembly is also arranged with a pin tail baffle arranged between the power pin tail and the signal pin tail, and the pin tail baffle is fixed to the plug shell.

8. The anti-loose charging plug device according to claim 7, wherein, The isolation sheet and the pin tail baffle are made of insulating material.