A snap-in power connector

The locking power connector design, which uses a female end cover to contact the male end shell, combined with a spring and pin structure, solves the problems of sealing and stability after installation, achieving stable electrical connection and dustproof effect, and enhancing the reliability of the connector.

CN224342658UActive Publication Date: 2026-06-09WUXI MUTUAL ELECTRONIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI MUTUAL ELECTRONIC TECH CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing snap-on power connectors are difficult to guarantee sealing and connection stability after installation, affecting ease of use and stability.

Method used

A locking power connector was designed. By setting the female end cover to contact the male end shell, combined with a spring and pin structure, the connector is ensured to remain in place. The design also incorporates a sealing ring and positioning element to prevent dust and moisture from entering, providing a stable electrical connection and a flexible locking function.

Benefits of technology

It achieves the sealing and stability of the connector, prevents loosening, ensures the reliability of electrical connection, reduces poor contact caused by vibration or external force, and provides an efficient sealing and dustproof design.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of power connector technology and discloses a locking power connector, including a male terminal wire, a male terminal shell fixedly connected to the front of the male terminal wire, a male terminal sealing ring inserted inside the male terminal shell, a male terminal terminal inserted inside the male terminal shell, a male terminal positioning member inserted at the bottom of the male terminal terminal, a female terminal shell inserted at the bottom of the male terminal positioning member, and a spring fixedly connected to the top of the female terminal shell. This utility model, by setting the rear end of the female terminal cover to contact the front surface of the male terminal shell, and the female terminal cover being connected to the female terminal spring pressure plate via a pin, can lock the male and female terminal shells together, ensuring that the connector will not loosen during use. Through efficient sealing and dustproof design, stable electrical connection and reliable contact, and flexible locking and protection functions, this connector achieves this.
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Description

Technical Field

[0001] This utility model relates to the field of power connector technology, and in particular to a locking power connector. Background Technology

[0002] A snap-lock power connector is a type of power connector that achieves a secure connection through a locking mechanism, and is widely used in home appliances, industrial equipment, and other fields. A snap-lock power connector typically consists of a plug, a socket, and a locking mechanism. The locking mechanism can be a single-lock or multi-lock design, such as TE Connectivity's triple-lock power connector (PTL), which uses multiple locks to ensure connection stability. When the plug and socket mate, the locks automatically engage, producing a clear locking sound to ensure a secure connection.

[0003] An existing type of latching power connector makes it difficult for operators to ensure the sealing and stability of the connection after the connector is installed in the appropriate position, thus affecting the convenience and stability of the connector during use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a locking power connector.

[0005] This utility model is achieved using the following technical solution: a latching power connector, including a male terminal wire, a male terminal housing fixedly connected to the front of the male terminal wire, a male terminal sealing ring inserted inside the male terminal housing, a male terminal terminal inserted inside the male terminal housing, a male terminal positioning member inserted at the bottom of the male terminal terminal, a female terminal housing inserted at the bottom of the male terminal positioning member, a spring fixedly connected to the top of the female terminal housing, a female terminal spring pressure plate rotatably connected inside the female terminal housing, a pin rotatably connected inside the female terminal spring pressure plate, a female terminal cover plate hinged to the surface of the pin, and a female terminal terminal inserted inside the female terminal housing.

[0006] With the above technical solution, the cover plate buckle is engaged with the groove on the back of the male terminal. A male terminal sealing ring is inserted inside the male terminal housing, and a male terminal is located inside the sealing ring. The bottom of the male terminal seal contacts the top surface of the male terminal positioning component, effectively preventing dust and moisture from entering the connector, protecting the male terminal from contamination and corrosion, and ensuring the reliability of the electrical connection.

[0007] As a further improvement to the above solution, a male terminal is provided inside the male end sealing ring, and the bottom of the male end sealing ring contacts the top surface of the male end positioning member.

[0008] As a further improvement to the above solution, the rear end of the female end cover plate contacts the front surface of the male end housing, and the bottom of the male end housing contacts the top surface of the female end housing.

[0009] Using the above technical solution, a force is applied to the female end cover to lift the cover to about °15, and the female end cover will automatically lift to °90. The maximum opening and closing range of the female end cover is about °140.

[0010] As a further improvement to the above solution, the female terminal is located inside the male housing, and the male housing is located at the rear end of the pin.

[0011] With the above technical solution, the male terminal is inserted into the inside of the male housing, and the female terminal is inserted into the inside of the female housing, which can ensure that the male and female terminals can make close contact during the insertion process and provide a stable electrical connection.

[0012] As a further improvement to the above solution, the male end housing is located at the rear end of the female end spring pressure plate, and the male end housing is located at the top of the spring.

[0013] As a further improvement to the above scheme, the number of springs is set to two, and the two springs are symmetrically distributed on the left and right sides with the female end shell as the center.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model features a female end cover that contacts the front surface of the male end housing. The female end cover is connected to the female end spring pressure plate via a pin, which locks the male and female end housings together, ensuring that the connector will not loosen during use. It also features an efficient sealing and dustproof design, stable electrical connection and reliable contact, and flexible locking and protection functions.

[0016] This invention provides elastic cushioning by using two springs symmetrically distributed around the female end shell, reducing connector loosening caused by vibration or external force and enhancing connector reliability. A male end positioning component is inserted into the bottom of the male end terminal, and the female end shell is inserted into the bottom of the male end positioning component. The male end positioning component ensures accurate positioning of the male end terminal during insertion, preventing poor contact caused by misalignment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0020] Figure 4 This is a schematic diagram of the right-side structure of this utility model.

[0021] Explanation of key symbols:

[0022] 1. Male terminal wire; 2. Male terminal housing; 3. Male terminal sealing ring; 4. Male terminal; 5. Male terminal positioning component; 6. Female terminal cover plate; 7. Pin; 8. Female terminal spring pressure plate; 9. Spring; 10. Female terminal housing; 11. Female terminal. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figures 1-4 This embodiment of a locking power connector includes a male terminal wire 1, a male terminal housing 2 fixedly connected to the front of the male terminal wire 1, a male terminal sealing ring 3 inserted inside the male terminal housing 2, a male terminal terminal 4 inserted inside the male terminal housing 2, a male terminal positioning member 5 inserted at the bottom of the male terminal terminal 4, a female terminal housing 10 inserted at the bottom of the male terminal positioning member 5, a spring 9 fixedly connected to the top of the female terminal housing 10, and a female terminal spring 9 pressure plate 8 rotatably connected inside the female terminal housing 10. A pin 7 is rotatably connected, and a female end cover 6 is hinged to the surface of the pin 7. A female end terminal 11 is inserted into the inside of the female end housing 10. By setting the rear end of the female end cover 6 to contact the front surface of the male end housing 2, the female end cover 6 is connected to the female end spring 9 pressure plate 8 through the pin 7. The female end cover 6 can lock the male end housing 2 and the female end housing 10, ensuring that the connector will not loosen during use. It features efficient sealing and dustproof design, stable electrical connection and reliable contact, and flexible locking and protection functions.

[0026] With the cover plate snapped into the groove on the back of the male connector, a male connector sealing ring 3 is inserted inside the male connector housing 2. A male connector terminal 4 is located inside the male connector sealing ring 3, with its bottom contacting the top surface of the male connector positioning member 5. This effectively prevents dust and moisture from entering the connector, protecting the male connector terminal 4 from contamination and corrosion, and ensuring the reliability of the electrical connection.

[0027] The male end sealing ring 3 has a male end terminal 4 inside, and the bottom of the male end sealing ring 3 is in contact with the top surface of the male end positioning member 5.

[0028] The rear end of the female end cover 6 contacts the front surface of the male end housing 2, and the bottom of the male end housing 2 contacts the top surface of the female end housing 10.

[0029] Apply a force to the female end cover 6 to lift the cover to about °15. The female end cover 6 will automatically lift to °90. The maximum opening and closing range of the female end cover 6 is about °140.

[0030] The female terminal 11 is located inside the male housing 2, which is located at the rear end of the pin 7.

[0031] The male terminal 4 is inserted into the inside of the male housing 2, and the female terminal 11 is inserted into the inside of the female housing 10, which ensures that the male terminal 4 and the female terminal 11 can make close contact during the insertion process and provide a stable electrical connection.

[0032] The male end housing 2 is located at the rear end of the female end spring 9 pressure plate 8 and at the top of the spring 9. By setting the number of springs 9 to two and symmetrically distributed on the left and right sides with the female end housing 10 as the center, a certain elastic buffer can be provided to reduce the loosening of the connector caused by vibration or external force and enhance the reliability of the connector. The bottom of the male end terminal 4 is inserted with a male end positioning member 5, and the bottom of the male end positioning member 5 is inserted with the female end housing 10. The male end positioning member 5 can ensure the accurate positioning of the male end terminal 4 during the insertion process and prevent poor contact caused by misalignment.

[0033] The number of springs 9 is set to two, and the two springs 9 are symmetrically distributed on the left and right sides with the female end shell 10 as the center.

[0034] The implementation principle of a locking power connector in this application embodiment is as follows: This product includes a male terminal and a female terminal, both of which are made of rigid plastic. The male and female terminals consist of a power pin and a signal pin, meeting the needs of customers for multiple applications. The male terminal is manufactured using engineering plastic injection molding, and its head is designed with a groove, which, together with a sealing ring, ensures excellent sealing and waterproof performance, meeting IP67 standards. The female terminal is designed with an automatic cover plate for easy protection when not in use, and the cover plate head is designed with a snap-fit ​​mechanism that engages with the groove on the back of the male terminal for a locking effect. After installation, the female terminal is injected with epoxy resin adhesive, providing excellent stability and waterproof performance. By setting the rear end of the female terminal cover plate 6 to contact the front surface of the male terminal housing 2, the female terminal cover plate 6 is secured by a pin. The pin 7 is connected to the female end spring 9 and the pressure plate 8, which can lock the male end shell 2 and the female end shell 10 through the female end cover plate 6, ensuring that the connector will not loosen during use. Through efficient sealing and dustproof design, stable electrical connection and reliable contact, flexible locking and protection functions, and by setting two springs 9, which are symmetrically distributed on the left and right sides with the female end shell 10 as the center, a certain elastic buffer can be provided to reduce the loosening of the connector caused by vibration or external force, and enhance the reliability of the connector. The bottom of the male end terminal 4 is inserted with a male end positioning piece 5, and the bottom of the male end positioning piece 5 is inserted with the female end shell 10. The male end positioning piece 5 can ensure the accurate positioning of the male end terminal 4 during the insertion process and prevent poor contact caused by misalignment.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A latching power connector, characterized in that, The device includes a male terminal wire (1), a male terminal housing (2) fixedly connected to the front of the male terminal wire (1), a male terminal sealing ring (3) inserted inside the male terminal housing (2), a male terminal terminal (4) inserted inside the male terminal housing (2), a male terminal positioning member (5) inserted at the bottom of the male terminal terminal (4), a female terminal housing (10) inserted at the bottom of the male terminal positioning member (5), a spring (9) fixedly connected to the top of the female terminal housing (10), a female terminal spring pressure plate (8) rotatably connected inside the female terminal housing (10), a pin (7) rotatably connected inside the female terminal spring pressure plate (8), a female terminal cover plate (6) hinged to the surface of the pin (7), and a female terminal terminal (11) inserted inside the female terminal housing (10).

2. The locking power connector as described in claim 1, characterized in that: The male end sealing ring (3) is provided with a male end terminal (4) inside, and the bottom of the male end sealing ring (3) is in contact with the top surface of the male end positioning member (5).

3. A locking power connector as described in claim 1, characterized in that: The rear end of the female end cover (6) is in contact with the front surface of the male end shell (2), and the bottom of the male end shell (2) is in contact with the top surface of the female end shell (10).

4. A locking power connector as described in claim 1, characterized in that: The female terminal (11) is located inside the male housing (2), which is located at the rear end of the pin (7).

5. A locking power connector as described in claim 1, characterized in that: The male end housing (2) is located at the rear end of the female end spring pressure plate (8), and the male end housing (2) is located at the top of the spring (9).

6. A locking power connector as described in claim 1, characterized in that: The number of springs (9) is set to two, and the two springs (9) are symmetrically distributed on the left and right sides with the female end shell (10) as the center.