Large-current power plug structure

Abstract

The utility model discloses a heavy current power plug structure, a metal ring, a rubber core and a metal needle are arranged in a power plug, the outer wall of the metal ring is of a step structure, a first positioning piece and more than one clamping piece are arranged on the outer wall of the metal ring, the rubber core is of a step structure and is arranged on the metal ring, and the metal needle is embedded on the inner wall of the rubber core in a matched mode. According to the utility model, the structure is simple, the connection is stable, the copper shell can be stably fixed in the power plug to realize the negative pole conduction by arranging the clamping piece, the positioning groove and the external thread without additionally arranging an elastic piece, and meanwhile, a relatively large clamping contact area forms a relatively large conduction contact area; a relatively large conduction current can be obtained, and a relatively good plugging hand feeling can be obtained at the same time; through the arrangement of the connecting structure and the L-shaped cutting groove, stable connection of the metal needle, the rubber core and the connecting piece can be realized so as to realize positive pole conduction.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plug technical field, especially large current power plug structure. BACKGROUND

[0002] Power plug is widely used in daily production and life various electronic equipment, along with the current electronic equipment function increasingly complex, electronic equipment needs greater access current to support its operation. But currently some small size power plug exists inside the too small electric area and difficult to load large current problem. On the other hand, due to the plug inside the electric structure size is small, its connection is mostly not stable enough, external force accidental pulling very easily makes internal conduction piece disengages connection. SUMMARY

[0003] In view of the above prior art problems of large current power plug structure, the utility model provides large current power plug structure, simple structure, connection is stable, can obtain larger on -off current and simultaneously obtains better plug -in feel.

[0004] To solve the above technical problem, the utility model takes a technical scheme as follows:

[0005] Large current power plug structure, the plug is equipped with positive electrode conductive plate and negative electrode conductive plate;The power plug is equipped with metal ring, rubber core and metal needle, and the metal ring and metal needle are electrically connected with the positive electrode conductive plate and negative electrode conductive plate through a connecting piece, wherein:

[0006] The outer wall of the metal ring is a stepped structure, and a first positioning member and one or more clamping members are arranged on the outer wall of the metal ring;

[0007] The rubber core is annular structure and its outer wall is stepped structure, and the shoulder is matched and abutted on the end portion with smaller outer diameter of the metal ring, one end extends to the radial inner side of the metal ring, and the other end extends to the axial outer side of the metal ring;

[0008] The metal needle is matched and embedded on the inner wall of the rubber core, and a connecting structure is arranged on the end portion away from the metal ring.

[0009] As a further elaboration of the above technical scheme:

[0010] In the above technical scheme, the first positioning member includes positioning grooves and external threads arranged on both sides of the shoulder of the metal ring, the external threads are arranged on the outer wall of the end portion with smaller outer diameter of the metal ring, and the positioning grooves are annular structure and arranged on the side wall of the end portion with larger outer diameter of the metal ring.

[0011] In the above technical scheme, each clamping member is a clamping groove arranged on the side wall of the end portion with larger outer diameter of the plug, and the bottom end portion of each clamping groove is an arc surface.

[0012] In the technical scheme, the end part of the metal ring with a large outer diameter is further formed with a round corner.

[0013] In the technical scheme, the outer wall of the rubber core is further formed with an L-shaped cutting groove on the side of the metal needle, one arm of the L-shaped cutting groove is parallel to and passes through the central axis of the rubber core, and the other arm penetrates through one side wall of the rubber core.

[0014] In the technical scheme, the connecting structure is a blind hole arranged on the shaft center of one end part of the metal needle.

[0015] Compared with the prior art, the utility model has the advantages of simple structure, stable connection, and the like, and the copper shell can be stably fixed in the power plug to realize negative electrode conduction without additional elastic members, and a relatively large clamping contact area forms a large conduction contact surface, so that a large conduction current can be obtained and a good plugging feeling can be obtained. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the embodiment;

[0017] Figure 2 is an exploded structural schematic view of the embodiment.

[0018] In the figure: 10, metal ring; 11, first positioning member; 1, positioning groove; 2, external thread; 12, clamping member; 13, round corner; 20, rubber core; 21, L-shaped cutting groove; 30, metal needle; 31, connecting structure; 32, positioning clamping groove. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail in combination with the drawings.

[0020] The embodiments described with reference to the accompanying drawings are illustrative and intended to explain the present application, and should not be construed as limiting the present application. In the description of this application, it should be understood that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features referred to. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this application, "several" and "a plurality" mean two or more, unless otherwise specifically defined. In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly below or diagonally below the second feature, or simply indicate that the first feature is at a lower level than the second feature.

[0021] like Figure 1-2 The high-current power plug structure shown in FIG. includes a positive conductive plate and a negative conductive plate. Inside the power plug are a metal ring 10, a rubber core 20, and a metal pin 30. The metal ring 10 and the metal pin 30 are electrically connected to the positive and negative conductive plates, respectively, via a connector. In this embodiment, the metal ring 10 and the metal pin 30 are both made of copper.

[0022] The outer wall of the metal ring 10 is stepped, and a first positioning member 11 and one or more clamping members 12 are arranged on the outer wall. In this embodiment, the first positioning member 11 includes a positioning groove 1 and an external thread 2 arranged on the two sides of the shoulder of the metal ring 10, the external thread 2 is arranged on the outer wall of the end portion with smaller outer diameter of the metal ring 10, and the positioning groove 1 is annular and arranged on the side wall of the end portion with larger outer diameter of the metal ring 10; each clamping member 12 is a clamping groove arranged on the side wall of the end portion with larger outer diameter of the metal ring 10, and the bottom end portion of each clamping groove is arc-shaped; and a rounded corner 13 is further formed on the end portion with larger outer diameter of the metal ring 10.

[0023] It can be understood that the positioning groove 1 can be clamped with a connecting member, the external thread 2 is convenient to process and can increase the surface roughness of the end portion of the metal ring 10, so as to increase the tin adhesion and ensure that the metal ring 10 and the connecting member are tightly fixed together; the clamping member 12 can be matched with the connecting member to clamp the metal ring 10 thereon, without the need to additionally increase the clamping structure, and the annular arc-shaped groove not only can obtain a better plugging feeling during plugging of the negative electrode lead, but also can ensure that the metal ring 10 and the connecting member have a larger and stable contact area, and the overcurrent between the two can meet the use needs of a large-current electrical device; and the rounded corner 13 can play a guiding role during plugging and can avoid scratching the metal ring.

[0024] The rubber core 20 is annular and its outer wall is stepped, the shoulder thereof is matched and abuts against the end portion with smaller outer diameter of the metal ring 10, one end thereof extends to the radial inner side of the metal ring 10, and the other end thereof extends to the axial outer side of the metal ring 10. In this embodiment, an L-shaped cutting groove 21 is further formed on the outer wall of the rubber core 20 on one side of the metal needle 30, one arm of the L-shaped cutting groove 21 is parallel to and passes through the central axis of the rubber core 20, and the other arm penetrates through one side wall of the rubber core 20.

[0025] The metal needle 30 is matched and embedded on the inner wall of the rubber core 20, and a connecting structure 31 is arranged on the end portion away from the metal ring 10. In this embodiment, the connecting structure 31 is a blind hole arranged on the central axis of one end portion of the metal needle 30. In this embodiment, two or more positioning clamping grooves 32 are further arranged on the outer wall of the metal needle 30 and are matched with the inner wall of the rubber core 20 in the axial direction, so as to stably fix the metal needle 30 on the rubber core 20. In use, the connecting structure 31 and the side wall of the metal needle 30 exposed outside the L-shaped cutting groove 21 are fixedly connected with another connecting member to realize positive electrode conduction.

[0026] The utility model has a simple structure and a stable connection. By providing the clamping member 12, the positioning groove 1 and the external thread 2, the copper shell 10 can be firmly fixed in the power plug to achieve negative pole conduction without the need for additional elastic members. At the same time, the relatively large clamping contact area forms a larger conduction contact surface, which can obtain a larger conduction current and a better plugging and unplugging feel. By providing the connecting structure 31 and the L-shaped groove 21, the metal needle 30 can be firmly connected with the rubber core 20 and the connecting member to achieve positive pole conduction.

[0027] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high-current power plug structure, wherein the power plug is provided with a positive conductive plate and a negative conductive plate; characterized in that: The power plug is provided with a metal ring, a rubber core and a metal needle, and the metal ring and the metal needle are electrically connected to the positive conductive plate and the negative conductive plate respectively through a connector, wherein: The outer wall of the metal ring is a stepped structure, and a first positioning member and one or more clamping members are provided on the outer wall; The rubber core is an annular structure and its outer wall is a stepped structure, the shoulder of which matches and abuts against the end of the metal ring with a smaller outer diameter, one end of which extends to the radial inner side of the metal ring and the other end extends to the axial outer side of the metal ring; The metal needle is matched and embedded on the inner wall of the rubber core, and a connection structure is provided at the end thereof away from the metal ring.

2. The high current power plug structure according to claim 1, characterized in that: The first positioning member includes a positioning groove and an external thread respectively arranged on both sides of the metal ring shoulder. The external thread is arranged on the outer wall of the end with smaller outer diameter of the metal ring. The positioning groove is an annular structure and is arranged on the side wall of the end with larger outer diameter of the metal ring.

3. The high current power plug structure according to claim 1, characterized in that: Each of the clamping parts is a clamping groove provided on the side wall of the end portion with a larger outer diameter of the metal ring, and the bottom end portion of each of the clamping grooves is an arc surface.

4. The high current power plug structure according to claim 1, characterized in that: The end portion of the metal ring with a larger outer diameter is also formed with a rounded corner.

5. The high-current power plug structure according to any one of claims 1 to 4, characterized in that: An L-shaped groove is formed on the outer wall of the rubber core beside one side of the metal needle, one arm of the L-shaped groove is parallel to the central axis of the rubber core and passes through the central axis, and the other arm passes through a side wall of the rubber core.

6. The high current power plug structure according to claim 5, characterized in that: The connecting structure is a blind hole arranged on the axis of one end of the metal needle.

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