Safe C7-to-country three-pole male plug adapter
By designing a safe C7 to multinational three-pole male plug adapter, and utilizing a combination of grounding cover, spring and grounding pin, the problem of the lack of grounding protection for C7 plugs is solved, realizing safe adaptation and grounding protection for multinational plugs, and improving the safety and stability of the equipment.
Patent Information
- Application Number
- CN202520238853.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-14
AI Technical Summary
The C7 plug lacks grounding protection, posing a safety hazard and failing to meet the compatibility requirements of plugs from multiple countries.
A safe C7 to multinational three-pole male connector adapter was designed. Through the combination of grounding cover, spring and grounding pin, reliable electrical contact between grounding pin and grounding cover is achieved. It is equipped with pin copper tube and pin clamp to ensure stable connection. Combined with the sliding cooperation of hook groove and grounding slide, the grounding function is realized.
It improves the safety of equipment use, meets the plug specification requirements of different countries, ensures the reliability and stability of grounding protection, prevents leakage risks, and has strong applicability.
Smart Images

Figure CN223912003U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to C7 male plug adapter technical field, concretely relates to a safe C7 turns each country three pole male plug adapter. BACKGROUND
[0002] C7 is a kind of power plug type in international electrotechnical commission (IEC) standard, usually for low-power equipment, such as TV, audio equipment, some types of computer equipment and small household appliances.C7 plug is part of IEC 60320 standard, which specifies different types of power connectors and plugs.
[0003] C7 plug usually only has two contact points, one is "fire line" (L line, Live), and the other is "zero line" (N line, Neutral).This design means that it does not include ground protection wire (ground wire).For this reason, on the market, most of the C7 three pole adapter and standard sheet C7 are only connected to zero and fire line, and the ground wire is not connected, so there is no ground protection, and there is a certain safety hazard. INVENTION CONTENTS
[0004] In view of the above shortcomings, the purpose of the utility model is to provide a safe C7 turns each country three pole male plug adapter with reasonable structure design and safe use.
[0005] To achieve the above purpose, the technical scheme provided by the utility model is:
[0006] A safe C7 turns each country three pole male plug adapter, comprising a C7 adapter body, a grounding cover, a spring and a ground wire plug PIN, the C7 adapter body comprises a fire wire plug PIN, a zero wire plug PIN, a shell, a lower cover and a plug copper tube, the tail of the lower cover is provided with a C7 plug, and the front part is provided with a plug-in part, two plug copper tubes are arranged in the plug hole of the C7 plug, the plug-in part is provided with an opening matched with the grounding cover, the grounding cover is arranged on the opening, the spring abuts against the grounding cover, the ground wire plug PIN, the fire wire plug PIN and the zero wire plug PIN are embedded on the shell, and the shell cover is combined on the plug-in part, so that the ground wire plug PIN is in electrical contact with the grounding cover through the spring, and the fire wire plug PIN and the zero wire plug PIN are in electrical contact with the corresponding plug copper tubes.
[0007] As a preferred scheme of the utility model, the ground wire plug PIN is provided with a plug column capable of being inserted into the spring, and the connection part of the plug column and the ground wire plug PIN is increased in diameter to form a boss capable of abutting against the end part of the spring.The connection stability between the ground wire plug PIN and the spring is improved, the conductivity is good, and the reliability of ground protection is ensured.
[0008] As a preferred scheme of the utility model, the tail end of the pin copper pipe extends to the position of the plug-in part, and is provided with a PIN foot clamp jaw, and the neutral line plug-in PIN and the live wire plug-in PIN are provided with pins capable of being inserted into the PIN foot clamp jaw. After assembly, the pins on the ground wire plug-in PIN and the live wire plug-in PIN can be inserted into the corresponding PIN foot clamp jaw to realize electrical connection, effectively simplify the installation process, and improve the production efficiency.
[0009] As a preferred scheme of the utility model, the plug-in part is provided with a supporting strip for supporting the PIN foot clamp jaw, so that the positioning and supporting effect is good, the stability of the PIN foot clamp jaw is enhanced, and the PIN foot clamp jaw is prevented from being deformed or damaged due to stress in the working process.
[0010] As a preferred scheme of the utility model, the plug-in part is provided with an inner frame for positioning the pin copper pipe, and the pin copper pipe is provided with a positioning claw abutting on the inner frame. The pin copper pipe is effectively prevented from being withdrawn during plug-in, the fixation of the pin copper pipe is more reliable, and the use stability of the product is enhanced.
[0011] As a preferred scheme of the utility model, the inner frame is provided with a spring cavity corresponding to the position of the grounding press cover, and the spring is located in the spring cavity. The ground wire plug-in PIN can stably electrically contact the grounding press cover, so that the stability and reliability of the grounding protection are improved.
[0012] As a preferred scheme of the utility model, the bottom of the plug-in part is symmetrically provided with a hook groove, the charger is provided with a grounding sliding seat matched with the hook groove, and the grounding press cover abuts on the grounding sliding seat. When the safety C7 three-pole male plug adapter is assembled with the charger, the hook groove and the grounding sliding seat are slidably matched and pushed into position, the grounding press cover abuts on the grounding sliding seat to electrically contact, and the purpose of grounding is achieved.
[0013] The utility model has the advantages that: the utility model has reasonable structure, the ground wire plug-in PIN can reliably electrically contact the grounding press cover through the cooperation of the spring and the grounding press cover, the problem of lack of grounding protection of the C7 plug is solved, the function of safe conversion of the C7 plug to the three-pole male plug is realized, and the safety of equipment use is improved. The C7 plug selects the Standardsheet C7 in the safety IEC60320, UL60320 and GB / T17465 as the standard, has strong universality and applicability, and can be directly matched with traditional chargers and the like. The live wire plug-in PIN and the neutral line plug-in PIN can be plug pins of different national standards, such as American standards and Australian standards, have high use flexibility, and meet different national use requirements.
[0014] The utility model is further illustrated below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the three-dimensional structure schematic diagram of the utility model.
[0016] Figure 2 is the internal structure schematic diagram of the utility model.
[0017] Figure 3 is the exploded structure schematic diagram of the utility model.
[0018] Figure 4 is the structure schematic diagram of the utility model when using Figure 1 .
[0019] Figure 5 is the structure schematic diagram of the utility model when using Figure 2 . DETAILED DESCRIPTION
[0020] Embodiment: see Figures 1 to 5 , a kind of safe C7 turns each country three-pole male plug adapter provided in this embodiment, it includes C7 adapter body, ground press cover 1, spring 2 and ground wire plug PIN 3.The C7 adapter body includes firewire plug PIN 4, zero line plug PIN 5, shell 6, lower cover 7 and plug copper tube 8.The firewire plug PIN 4, zero line plug PIN 5 can be different countries' plug pins, such as American rules, Australian rules etc., high flexibility is used, meet the use demand of different countries.
[0021] The tail portion of the lower cover 7 is equipped with C7 plug 71, C7 plug 71 selects the Standard sheet C7 in safety regulation IEC60320, UL60320, GB / T17465 as standard, and has strong universality and applicability, can be directly adapted to traditional charger etc..The front portion of the lower cover 7 is equipped with insertion part 72.
[0022] Two plug copper tubes 8 are arranged in the jack of the C7 plug 71, the insertion part 72 is equipped with the opening 723 matched with the ground press cover 1, the ground press cover 1 is arranged on the opening 723, the spring 2 abuts against the ground press cover 1, the ground wire plug PIN 3, firewire plug PIN 4 and zero line plug PIN 5 are embedded on the shell 6.The ground wire plug PIN 3 and firewire plug PIN 4 are arranged side by side, and are not divided into left and right positions.
[0023] The shell 6 covers the insertion part 72, and the ground pin 3 is in electrical contact with the grounding press cover 1 through the spring 2, and the live pin 4 and the zero pin 5 are in electrical contact with the corresponding pin copper tube 8. Through the cooperation of the spring 2 and the grounding press cover 1, the ground pin 3 can be in reliable electrical contact with the grounding press cover 1, thereby solving the problem of lack of grounding protection of the C7 plug 71, realizing the function of safe conversion of the C7 plug 71 to a three-pole male plug, and improving the safety of equipment use.
[0024] Preferably, the ground pin 3 is provided with a plug column 31 capable of being inserted into the spring 2, and the plug column 31 is radially increased in diameter at the connection with the ground pin 3 to form a boss 32 capable of pressing against the end of the spring 2. The connection stability between the ground pin 3 and the spring 2 is improved, the conductivity is good, and the reliability of grounding protection is ensured. The tail end of the pin copper tube 8 extends to the position of the insertion part 72, and is provided with a PIN jaw 81, the zero pin 5 is provided with a pin 51 capable of being inserted into the PIN jaw 81, and the live pin 4 is provided with a pin capable of being inserted into the PIN jaw 81. After assembly, the pins on the ground pin 3 and the live pin 4 can be inserted into the corresponding PIN jaw 81 to realize electrical connection, effectively simplifying the installation process and improving production efficiency. The insertion part 72 is provided with a support strip 722 for supporting the PIN jaw 81, the positioning and supporting effect is good, the stability of the PIN jaw 81 is enhanced, and deformation or damage of the PIN jaw 81 due to stress during work is prevented.
[0025] The insertion part 72 is provided with an inner frame 9 for positioning the pin copper tube 8, and the pin copper tube 8 is provided with a positioning claw 82 abutting against the inner frame 9. The problem of pin copper tube 8 returning during insertion is effectively prevented, the fixation of the pin copper tube 8 is more reliable, and the use stability of the product is enhanced. The inner frame 9 is provided with a spring cavity 91 corresponding to the position of the grounding press cover 1, and the spring 2 is located in the spring cavity 91. The ground pin 3 can stably contact the grounding press cover 1, thereby improving the stability and reliability of the grounding protection.
[0026] The bottom of the insertion part 72 is symmetrically provided with a hook groove 721 on both sides, the charger is provided with a grounding slide seat matched with the hook groove 721, and the grounding press cover 1 abuts against the grounding slide seat. When the safety C7 conversion adapter for various three-pole male plugs is assembled with the charger, the hook groove 721 and the grounding slide seat are slidably matched and pushed into position, the grounding press cover 1 abuts against the grounding slide seat to make electrical contact, and the purpose of grounding is achieved.
[0027] In use, refer to Figure 4The charger 10 in the figure is provided with an assembly opening 101 which is adapted to the shape of the C7 adapter body, a socket hole 102 which is adapted to the C7 plug 71 is arranged on the vertical surface of the assembly opening 101, and a grounding sliding seat 103 is arranged on the bottom surface of the assembly opening 101. The two sides of the grounding sliding seat 103 are provided with sliding hooks which are adapted to the hook slots 721. The C7 plug 71 can be accurately inserted into the socket hole 102 through the cooperation of the sliding hooks and the hook slots 721. Referring to Figure 5 After the C7 plug 71 is completely inserted into the socket hole 102, the grounding press cover 1 is abutted against the grounding sliding seat 103 to realize electrical contact, thus achieving the grounding purpose, effectively preventing the risk of electric shock caused by electric leakage, ensuring the personal safety of the user, and improving the use safety.
[0028] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above-mentioned embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model. As described in the above embodiments of the utility model, other structures of the adapter obtained by using the same or similar structures are also within the protection scope of the utility model.
Claims
1. A safety C7 to tri-pole male pin adapter comprising a C7 adapter body, characterized in that, It also includes a grounding cover, a spring, and a grounding pin. The C7 adapter body includes a live wire pin, a neutral wire pin, a housing, a lower cover, and copper pin tubes. The lower cover has a C7 plug at the tail and an insertion part at the front. The two copper pin tubes are disposed in the sockets of the C7 plug. The insertion part has an opening adapted to the grounding cover. The grounding cover is disposed on the opening. The spring abuts against the grounding cover. The grounding pin, live wire pin, and neutral wire pin are embedded in the housing. The housing covers the insertion part, and the grounding pin makes electrical contact with the grounding cover through the spring, and the live wire pin and neutral wire pin make electrical contact with their corresponding copper pin tubes.
2. The safety C7 transfer multi-pin male plug adapter of claim 1, wherein, The grounding pin has a post that can be inserted into the spring, and the connection between the post and the grounding pin is radially enlarged to form a boss that can press against the end of the spring.
3. The safety C7 transfer multi-pin male plug adapter of claim 1, wherein, The tail end of the copper tube of the plug extends to the insertion part and is provided with a PIN clip. The neutral wire PIN and the live wire PIN are provided with plugs that can be inserted into the PIN clip.
4. The safety C7 male pin adapter of claim 3, wherein, The insertion part is provided with a support strip to support the PIN foot claw.
5. The safety C7 male pin adapter of claim 3, wherein, The insertion part is provided with an inner frame for positioning the copper tube pin, and the copper tube pin is provided with a positioning claw that abuts against the inner frame.
6. The safety C7 male pin adapter of claim 5, wherein, The inner frame has a spring cavity corresponding to the position of the grounding cover, and the spring is located in the spring cavity.
7. The safety C7 transfer multi-pin male plug adapter according to any one of claims 1-6, wherein, The bottom of the insertion part is symmetrically provided with hook grooves on both sides, and the charger is provided with a grounding slide that is adapted to the hook grooves. The grounding cover abuts against the grounding slide.