Novel plug

The modular design of the plug, with its plug-in snap-fit ​​structure and insulation layout, solves the problems of complex assembly and easy loosening of traditional plugs, achieving the effects of simplified installation and improved safety.

CN223986757UActive Publication Date: 2026-03-10NINGBO QUANWANG ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional two-prong plugs have problems such as complex assembly, high contact resistance, and easy loosening.

Method used

The plug features a modular design, a snap-fit ​​structure, and an optimized insulation layout. It secures the plug section to the conductive sheet by snapping it in place, and combines this with the design of the terminal crimp assembly and insulating sleeve to ensure smooth current transmission and safety.

Benefits of technology

It simplifies the installation process, reduces production costs, improves safety and security, enhances mechanical stability, and meets international safety regulations.

✦ Generated by Eureka AI based on patent content.

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Abstract

A novel plug comprises a first housing, a second housing, a plugging part, a wiring terminal pressing assembly and a connecting seat. The plug-in part is arranged on the connecting seat in cooperation with the wiring terminal pressing assembly, the plug-in part and the wiring terminal pressing assembly are installed in the second shell together, and the first shell covers and is fixed to the top of the second shell in a detachable mode; the plugging part and the clamping part of the conductive sheet member form clamping fixation, and the plugging part is fixedly assembled on the wiring terminal pressing assembly through clamping. By adopting the plug-in structure, the installation process is simplified, and the production cost is reduced; the safety level is improved through the design of the double insulation sleeves and the split shell; due to the design of the conducting strip bending part, the conducting strip can be more stably arranged in the wiring terminal pressing assembly, the mechanical stability is enhanced, the electric connection capability is also improved, and the loosening condition is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of civilian plugs and sockets, and in particular to a novel plug. Background Technology

[0002] Traditional two-prong plugs typically use welding or screws to fix the conductive plates and plugs, which results in complex assembly, high contact resistance, and easy loosening. For example, the utility model patent with publication number CN221508541U, entitled "A Two-Prong Plug," includes a shell composed of an upper shell and a lower shell joined together, and prongs fixed to the shell. One end of the prong extends into the shell, and the other end extends out of the shell. An upper sheath extending outward is integrally provided on the upper shell, and a lower sheath extending outward is integrally provided on the lower shell. The upper and lower sheaths are joined together to form a tube that wraps around the prongs and exposes the ends of the prongs. A groove is provided in the middle of the prongs for the upper and lower sheaths to be inserted.

[0003] To address the aforementioned issues, this utility model proposes a modular plug design that improves installation efficiency and safety through a plug-in snap-fit ​​structure and optimized insulation layout. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a modularly designed plug that improves installation efficiency and safety through a plug-in snap-fit ​​structure and optimized insulation layout.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel plug includes a housing 1, a housing 2, a plug part, a terminal crimping assembly, and a connector; the plug part is configured in conjunction with the terminal crimping assembly in the connector and is installed together inside the housing 2; the housing 1 is detachably covered and fixed to the top of the housing 2; the plug part is snapped into and fixed to the conductive sheet by a snap-fit ​​part, and is assembled to the terminal crimping assembly by the snap-fit.

[0007] The above design ensures the overall structural stability and safety of the plug. At the same time, the cooperation between the plug part and the conductive plate allows for smooth current transmission while maintaining good electrical contact.

[0008] Preferably, the plug-in section includes one or more plug-ins; one end of the plug-in is provided with a connector that mates with the snap-fit ​​portion of the conductive sheet; the connector is snapped into the snap-fit ​​portion via a plug-in slot.

[0009] The above design allows the plug-in slot to provide guidance during insertion, facilitating installation.

[0010] Preferably, the conductive sheet includes one or more conductive sheets; the conductive sheet includes a conductive sheet protrusion that mates with the plug-in slot, a conductive sheet connecting portion integral with the conductive sheet protrusion, and a conductive sheet bending portion; the conductive sheet is fixed by being snapped onto the outer edge of the terminal crimping assembly through the conductive sheet bending portion.

[0011] The above-described technical solution, including the specific structure of the conductive sheet and its connection method with the plug-in section, ensures that current can be transmitted from the power cord to the outside of the plug. The design of the conductive sheet protrusion and the conductive sheet snap-fit ​​channel ensures a tight fit between the conductive sheet and the plug-in, thereby achieving stable power transmission.

[0012] Preferably, the terminal crimping assembly includes one or more terminal crimping members; the terminal crimping member includes a metal crimping member and a locking bolt for locking the power cord; the locking bolt is screwed into the conductive sheet connection portion and moves up and down in the metal crimping member.

[0013] The above-mentioned technical solution, the specific structure of the terminal crimping assembly, ensures that the power cord can be firmly connected to the plug. The design of the locking bolt allows the power cord to be easily inserted and locked, while avoiding the risk of short circuit caused by the end of the locking bolt contacting the conductive plate.

[0014] Preferably, a conductive sheet insertion channel is provided between the conductive sheet protrusion and the conductive sheet connection portion for the insertion slot of the plug-in. The conductive sheet insertion channel has an abutting protrusion that abuts against the outside of the insertion portion. The plug-in is inserted into the conductive sheet insertion channel in the vertical direction through the insertion slot and is respectively connected to the conductive sheet protrusion and the abutting protrusion in the vertical and horizontal directions of the conductive sheet.

[0015] The above-mentioned technical solution, with its conductive sheet insertion channel design, facilitates the insertion of the plug-in slot into the plug. After being inserted into place, the point contact of the abutment protrusion and the surface contact of the conductive sheet protrusion greatly improve the fixing effect and also provide a stable guarantee for power transmission.

[0016] Preferably, the conductive sheet protrusion is provided with a conductive sheet insertion channel, and the plug is inserted into the conductive sheet insertion channel through the plug insertion slot to cooperate and connect with the conductive sheet protrusion. The plug is designed to be perpendicular to the conductive sheet.

[0017] The above-mentioned technical solution and the above-mentioned socket are three-prong designs. According to the three-prong design, after the plug-in slot is inserted into the conductive sheet insertion channel, it is designed to be perpendicular to it, which facilitates the insertion and removal of the three-prong plug.

[0018] Preferably, the second housing has a mounting base inside which the terminal crimping assembly and the plug-in part are fixedly placed. The connecting base and the terminal crimping assembly cooperate with each other and are installed on the mounting base. The first housing covers the above-mentioned components and cooperates with the second housing.

[0019] The above-described technical solution involves the connector and the terminal crimping assembly working together to cover and install on the mounting base, which improves the fixation position of the internal components of the socket and enhances stability.

[0020] Preferably, one end of the grounding plug passes through the mounting base, and the other end is fixed in the terminal crimping assembly by a grounding conductive connecting piece integrally formed therewith.

[0021] Preferably, each of the plugs is fitted with an insulating sleeve; the insulating sleeve is close to the plug portion.

[0022] The above-mentioned technical solution, with its insulating sleeve on the plug-in, ensures that the plug-in will not leak electricity during use. The insulating sleeve increases the safety performance of the plug-in and protects users from electric shock.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This utility model adopts a plug-in structure to simplify the installation process and reduce production costs;

[0025] The double insulation sleeve and split housing design enhance the safety level;

[0026] The design of the conductive sheet bending section allows the conductive sheet to be more stably configured in the terminal crimping assembly, enhancing mechanical stability and improving electrical connection capability, while preventing loosening.

[0027] The anti-accidental contact design of the terminal crimping assembly meets international safety standards. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0029] Figure 1 This is a three-dimensional exploded structural diagram of the present invention;

[0030] Figure 2 This is a schematic diagram of the exploded structure from the front view of this utility model;

[0031] Figure 3 This is a schematic diagram of the plug-in part of this utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the conductive sheet of this utility model;

[0033] Figure 5 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 6 This is a three-dimensional exploded structural diagram of the present invention;

[0035] Figure 7 This is a schematic diagram of the internal structure of the present invention;

[0036] Figure 8 for Figure 7 A schematic diagram of the explosion structure.

[0037] Drawing number explanation:

[0038] 1. Shell 1;

[0039] 2. Shell II;

[0040] 3. Plug-in section; 31. Connector section; 32. Plug-in connector slot; 33. Plug-in arc-shaped slot;

[0041] 4. Connecting base;

[0042] 5. Terminal crimping assembly; 51. Locking bolt; 52. Metal clamping parts;

[0043] 6. Insulating sleeve;

[0044] 7. Conductive sheet; 70. Snap-fit ​​part; 71. Conductive sheet protrusion; 72. Conductive sheet connecting part; 73. Conductive sheet bending part; 74. Conductive sheet insertion channel; 75. Conductive sheet screw; 76. Abutting protrusion;

[0045] 8. Grounding plug, 81. Grounding conductive connector. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings.

[0047] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0048] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0049] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0050] Please see Figure 1-5 A novel plug is a two-prong plug. The plug-in part 3 is in a horizontal direction with the combined housing 1 and housing 2. It includes housing 1, housing 2 which can cooperate with housing 1, connector 4, terminal crimping assembly 5, plug-in part 3, insulating sleeve 6 sleeved on plug-in part 3, and conductive sheet 7. One end of the conductive sheet 7 is electrically connected to plug-in part 3, and the other end is connected to terminal crimping assembly 5. The plug-in part 3 consists of two plugs. One end of the plug is provided with a plug-in part 31 that cooperates with the snap-fit ​​part 71 of the conductive sheet 7. After the plug-in part 31 and the snap-fit ​​part 70 are snapped together, they are connected to the terminal crimping assembly 5 and disposed in connector 4.

[0051] Reference Figure 5 The aforementioned conductive sheet 7 includes two conductive sheets. Each conductive sheet includes a conductive sheet protrusion 71 that mates with the plug-in slot 32, a conductive sheet connecting portion 72 integral with the conductive sheet protrusion 71, and a conductive sheet bending portion 73. A conductive sheet insertion channel 74 is designed between the conductive sheet protrusion 71 and the conductive sheet connecting portion 72 to facilitate insertion into the plug-in slot 32. The aforementioned snap-fit ​​portion 70 is designed with a bent shape, and the conductive sheet insertion channel 74 is located at this bend. The conductive sheet insertion channel 74 is also provided with an abutment protrusion 76 near the conductive sheet connection part 72. When the plug is inserted vertically through the plug insertion groove 32 from the conductive sheet insertion channel 74, the outer end of the plug part 31 abuts against the abutment protrusion 76 at a point contact in the horizontal direction, while the plug insertion groove 32 engages with the conductive sheet protrusion 71 in the vertical direction, which is a surface contact. The combination of a point contact and a surface contact greatly improves the connection strength and electrical connection strength after mating.

[0052] Please see Figure 1-5The aforementioned terminal crimping assembly 5 includes one or more terminal crimping components; the terminal crimping component 5 includes a metal crimping component 52 and a locking bolt 51 for locking the power cord. The locking bolt 51 is first screwed into the metal crimping component 52, then further screwed into the conductive sheet connecting portion 72, and finally screwed to the bottom of the metal crimping component 52 to fix it. Specifically, the conductive sheet connecting portion 72 has a conductive sheet screw hole 75 for easy screwing of the locking bolt 51. That is, the locking bolt is screwed into the conductive sheet screw hole 75 of the conductive sheet connecting portion and moves up and down in the metal crimping component 52 in a screwed manner, thereby locking or loosening the external power cord. (Refer to...) Figure 1 In order to ensure that the conductive sheet 7 can be firmly disposed in the metal pressure member 52, the conductive sheet is fixed by being snapped into the outer edge of the metal pressure member 52 by the conductive sheet bending part 73.

[0053] Reference Figure 3 The aforementioned plug-in part 3 includes two plug-ins. The plug-in part 31 of the aforementioned plug-ins has symmetrical plug-in mounting and fixing slots 30 at its upper and lower ends. The aforementioned plug-ins can be accurately installed and fixed in the connector 4 through the plug-in mounting and fixing slots 30 on the plug-in part 31, and kept in the same horizontal direction to prevent the plug-in position from being deviated.

[0054] Principle: Please refer to Figure 1-5 First, the plug-in part 3 with insulating sheet 6 is inserted into the conductive sheet 7 and fixed by snap-fit. Then, the conductive sheet 7 passes through the metal pressure piece 52 and the locking bolt 5 is screwed into the conductive sheet screw hole 75 of the metal pressure piece 52 and the conductive sheet 7 in sequence to fix the position of the conductive sheet 7 in the mounting base 21 of the housing 2. Then, the connecting seat 4 firmly fixes the terminal pressure piece 5, the conductive sheet 7 and the plug-in part 31 of the plug-in part 3 together in the mounting base 21. Moreover, the connecting seat 4 is locked in the mounting base 21 of the housing 2 by bolts to ensure that the position of the terminal pressure piece 5, the conductive sheet 7 and the plug-in part 3 is guaranteed. Finally, the housing 1 is fitted into the guide groove 20 of the housing 2 by its multiple guide plates 11. After the guide snap-fit ​​is completed, the housing 2 is firmly locked and fixed to the housing 1 by passing through the housing 1. Example

[0055] Please see Figure 3 , Figure 6 , Figure 7 , Figure 8A novel plug, a three-prong plug, wherein the plug-in part 3 is aligned vertically with the combined housing 1 and housing 2; housing 1 covers and is fixed above housing 2 and can be locked in place by bolts; housing 2 has a mounting base 21 inside, which is used to fix the terminal crimping assembly 5 and the plug-in part 3; the plug-in part 3 includes two plugs of the same specification, each plug having a plug-in part 31, which is engaged with the snap-fit ​​part 70 of the conductive sheet 7; the terminal crimping assembly... Component 5 includes three terminal clamps, each consisting of a metal clamp 52 and a locking bolt 51, used to clamp the power cord and connect it to the conductive sheet. Two plug-ins are inserted into the metal clamp 52 by the plug-in part 31 engaging with the engaging part 70 of the conductive sheet 7. At the same time, the grounding plug-in 8 is also fixed to the metal clamp 52 by the grounding conductive connecting piece 81 integrally formed therewith. The connecting seat 4 is used to install the plug-in part 3, the conductive sheet 7 and the terminal clamp assembly 5 together in the mounting seat 21 of the housing 2.

[0056] Please see Figure 3 , Figure 6 , Figure 7 , Figure 8 The connection between the plug-in part 3 and the conductive sheet 7 is achieved by the plug-in part 31 being connected to the snap-fit ​​part 70 via the plug-in slot 32 of the plug-in part 31, ensuring a secure connection between the two. The plug-in slot 32 is also provided with a plug-in arc groove 33. The plug-in arc groove 33 is designed to prevent the plug from burning out after high voltage overload and has the function of releasing high voltage arc. The conductive sheet includes a conductive sheet protrusion 71, a conductive sheet connecting part 72, and a conductive sheet bending part 73. The conductive sheet protrusion 71 cooperates with the plug-in slot 32, and the conductive sheet bending part 73 is snapped onto the outer edge of the metal pressure member 52 for fixation.

[0057] Please see Figure 3 , Figure 6 , Figure 7 , Figure 8 The terminal crimping assembly 5 is designed to include one or more terminal crimping components. Each crimping component consists of a metal crimping component 52 and a locking bolt 51. The locking bolt 51 passes through the conductive sheet connecting part 72 and moves up and down in the metal crimping component 52 to lock the power cord. The conductive sheet protrusion 71 is provided with an inwardly bent conductive sheet insertion channel 74. The plug is inserted into the conductive sheet insertion channel 74 through the plug insertion slot 32 and connects with the conductive sheet protrusion 71 to ensure that the plug is connected to the conductive sheet in a perpendicular design.

[0058] Please see Figure 3 , Figure 6 , Figure 7 , Figure 8The housing design includes a mounting base 21 inside the housing 2 for fixing the terminal crimping assembly 5 and the plug-in part 3. The connecting seat 4 and the terminal crimping assembly 5 cooperate with each other and are installed on the mounting base 21. The housing 1 covers the above-mentioned components and cooperates with the housing 2. The housing 2 is provided with a fastener 22 that engages with the housing 1. The fastener 22 engages with the fastener groove 12 of the housing 1 and is finally locked and fixed by bolts.

[0059] Please see Figure 3 , Figure 6 , Figure 7 , Figure 8 For insulation protection, each plug is fitted with an insulating sleeve 6, which is close to the plug part 31 to prevent short circuits and other electrical faults and improve the safety of the plug.

[0060] Principle: Please refer to Figure 3 , Figure 6 , Figure 7 , Figure 8 First, the plug-in part 3 with insulating sheet 6 is inserted into the conductive sheet 7 and fixed by snap-fit. Then, the plug-in part 3 with conductive sheet 7 and the grounding plug-in 8 with grounding conductive connecting piece 81 are inserted through the metal pressure piece 52 in sequence. The locking bolt 5 is screwed into the conductive sheet screw hole 75 of the metal pressure piece 52, the conductive sheet 7, and the grounding conductive connecting piece 81 in sequence to fix the position of the conductive sheet 7 in the mounting base 21 of the housing 2. Then, the connecting base 4 firmly fixes the terminal pressure piece 5, the conductive sheet 7, the plug-in part 31 of the plug-in part 3, and the grounding conductive connecting piece 81 of the grounding plug-in 8 together in the mounting base 21. Finally, the housing 1 is fitted into the fastener 22 of the housing 2 through the fastening groove 12. After the fastening is completed, the housing 2 is firmly locked and fixed to the housing 1 by passing through the housing 1.

[0061] This utility model has the following beneficial effects:

[0062] This utility model adopts a plug-in structure to simplify the installation process and reduce production costs;

[0063] The double insulation sleeve and split housing design enhance the safety level;

[0064] The design of the conductive sheet bending section allows the conductive sheet to be more stably configured in the terminal crimping assembly, enhancing mechanical stability and improving electrical connection capability, while preventing loosening.

[0065] The anti-accidental contact design of the terminal crimping assembly meets international safety standards.

[0066] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A new type of plug, comprising a shell one, a shell two, a plug-in part, a terminal pressing assembly and a connecting seat; the plug-in part is matched with the terminal pressing assembly and is arranged in the connecting seat, and is installed together in the interior of the shell two, and the shell one is detachably covered and fixed on the top of the shell two; characterized in that: The plug-in part is clamped and fixed with the clamping part of the conductive sheet part, and is assembled in the wiring terminal pressing assembly through the clamping and fixing. ​ 2. A new plug as claimed in claim 1, wherein: The plug-in part includes one or more plug-ins; one end of the plug-in is provided with a plug-in part matched with the clamping part of the conductive sheet part; the plug-in part is clamped with the clamping part through the plug-in plug-in slot.

3. A new plug as claimed in claim 2, characterized in that: The conductive sheet part includes one or more conductive sheets; the conductive sheet includes a conductive sheet protruding part matched with the plug-in plug-in slot, a conductive sheet connecting part integrated with the conductive sheet protruding part, and a conductive sheet bending part; the conductive sheet is clamped and fixed in the outer end of the wiring terminal pressing assembly through the conductive sheet bending part.

4. A novel plug as claimed in claim 3, wherein: The wiring terminal pressing assembly includes one or more wiring terminal pressing parts; the wiring terminal pressing part includes a metal pressing part and a locking bolt for locking the power line; the locking bolt is screwed into the conductive sheet connecting part and moves up and down in the metal pressing part.

5. A novel plug as claimed in claim 4, wherein: The conductive sheet protruding part and the conductive sheet connecting part are provided with a conductive sheet plug-in channel for the plug-in plug-in slot to pass through, the conductive sheet plug-in channel is built-in with an abutting protruding block abutting the outside of the plug-in part, and the plug-in is inserted into the conductive sheet plug-in channel in the vertical direction through the plug-in plug-in slot, and is connected with the conductive sheet protruding part and the abutting protruding block in the vertical direction and the horizontal direction of the conductive sheet, respectively.

6. A novel plug as claimed in claim 5, wherein: The second housing is internally provided with a mounting seat for fixedly placing the wiring terminal pressing assembly; the connecting seat is matched with the wiring terminal pressing assembly to be covered and mounted in the mounting seat and locked and fixed by a bolt, and the first housing is covered in the above-mentioned components and matched with the second housing.

7. A new type of plug according to claim 4, characterized in that: The conductive sheet protruding part is provided with a conductive sheet plug-in channel, the plug-in is inserted into the conductive sheet plug-in channel through the plug-in plug-in slot to be connected with the conductive sheet protruding part, and the plug-in is designed to be connected vertically with the conductive sheet.

8. A new type of plug according to claim 7, characterized by: The second housing is internally provided with a mounting seat for fixedly placing the wiring terminal pressing assembly and the plug-in part matched with each other, the connecting seat is matched with the wiring terminal pressing assembly to be covered and mounted in the mounting seat, and the first housing is covered in the above-mentioned components and matched with the second housing.

9. A new type of plug according to claim 8, characterized in that: The grounding plug-in is provided; one end of the grounding plug-in passes through the mounting seat, and the other end is fixed in the wiring terminal pressing assembly through a grounding conductive connecting sheet integrally formed therewith.

10. A new type of plug according to claim 9 or 5, characterized in that: The plug-in is provided with an insulating sleeve; the insulating sleeve is close to the plug-in part.

Citation Information

Patent Citations

  • Two-pin plug

    CN221508541U