CN219659027U

CN219659027U - Anti-pull-off structure of plug

Info

Publication number: CN219659027U
Application number: CN202320957902.9U
Authority: CN
Inventors: 陈勇; 蒋发伟; 陈建
Original assignee: Chongqing Wuji Beta Power Supply Co ltd
Current assignee: Chongqing Wuji Beta Power Supply Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-09-08
Anticipated expiration: 2033-04-25

Abstract

The utility model provides an anti-pull-off structure of a plug, and belongs to the technical field of chargers; the battery charger comprises a second anti-falling part arranged on a terminal fixing frame shell of the battery charger and an extension part arranged on a plug body, wherein the second anti-falling part is positioned at the outer side of the terminal fixing frame shell. According to the utility model, the second anti-drop part and the groove are arranged, so that the connection strength between the charger terminal fixing frame shell and the plug body is increased, the tensile drop capacity between the charger terminal fixing frame shell and the plug body is improved, the extension part is arranged, and the gap between the charger terminal fixing frame shell and the plug body is avoided, so that the exposure of the charger terminal is avoided, the tensile drop capacity of the charger terminal fixing frame shell and the plug body is further increased through the arrangement of the second anti-drop part and the tooth-shaped structure, the tooth-shaped structure and the extension part formed by injection molding are matched to form the reinforcing rib structure, the strength of the extension part is further enhanced, the tensile drop capacity is further enhanced, and the service life of the charger plug is prolonged.

Description

Anti-pull-off structure of plug

Technical Field

The utility model relates to the technical field of chargers, in particular to an anti-pull-off structure of a plug.

Background

Along with the improvement of the living standard of people and the acceleration of the working rhythm, the riding tool is also updated continuously, and more people choose to ride the electric vehicle. The electric vehicle has the functions of manual riding, saves labor and is convenient, and is particularly suitable for traffic requirements of common people in areas with long travel distance or undeveloped buses due to the expansion of urban scale.

At present, the shell of the terminal fixing frame of the electric vehicle charger and the plug body are easy to loose and separate in the use process of consumers, and electric parts in the plug body are possibly exposed, so that the problems of safety and reliability quality are caused.

For example, chinese patent publication No. CN214625451U discloses an electric vehicle charger plug, including plug housing and terminal support, the terminal support is equipped with three stand, is first stand, second stand and third stand respectively, and is three be the article font between the stand and distribute, first stand is equipped with the earth connection and stretches into the first terminal of plug housing, the second stand is equipped with the power connection negative pole and stretches into the second terminal, the third stand is equipped with the power connection positive pole and stretches into the third terminal, the terminal support is equipped with the recess of placing the connection piece, first terminal passes through with the second terminal the connection piece connects as an organic wholely. The utility model enhances the positive and negative pole insulation electric strength of the plug by arranging the grooves, and in addition, after the plug shell and the external plastic coating are molded by glue injection, the pulling-out force between the plug shell and the external plastic coating is enhanced, and the pulling-out force between the plug shell and the external plastic coating is prevented from being separated, namely the strength of the whole plug is enhanced.

The electric automobile charging plug can increase the connection strength between the charger terminal fixing frame shell and the plug body, increase the pulling-out force between the charger terminal fixing frame shell and the plug body and prevent the charger terminal fixing frame shell and the plug body from being separated, however, the end part of the charger terminal fixing frame shell is contacted with the end part of the plug body, so that a contact gap is formed, the gap is further increased along with the increase of the use frequency, and finally separation can be generated, so that the service life of the charger plug is reduced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an anti-pull-off structure of a plug so as to solve the problem that the end part of the existing charger terminal fixing frame shell is contacted with the end part of a plug body to form a contact gap, the gap is further increased along with the increase of the use frequency, and finally, detachment can be generated, so that the service life of the charger plug is reduced.

In order to solve the technical problems, the utility model provides the following technical scheme:

the anti-pull-out structure of the plug comprises a second anti-pull-out part and an extension part, wherein the second anti-pull-out part is arranged on a shell of a terminal fixing frame of the charger, the extension part is arranged on the plug body, the extension part is arranged on the outer side of the shell of the terminal fixing frame, the second anti-pull-out part and the shell of the terminal fixing frame are integrated through injection molding, and the extension part and the plug body are integrated through injection molding; the second anti-falling part is embedded into the extension part through injection molding and is matched with the groove on the inner side of the extension part to achieve the purpose of releasing.

Preferably, the second anti-falling part comprises a tooth-shaped structure fixedly connected to the charger terminal fixing frame shell, and the tooth-shaped structure is located in the extension part.

Preferably, the tooth structure and the charger terminal fixing frame shell are of an integrated structure.

Preferably, the tooth-type structure comprises external teeth and internal teeth connected.

Preferably, the extension part comprises a groove arranged on the inner side of the extension part, and the groove is matched with the second anti-falling part.

Preferably, the grooves are divided into a plurality of sections, and the sections are mutually spaced to form reinforcing ribs so as to enhance the tensile force of the extension part.

Preferably, the tooth-shaped structure is embedded in the groove by injection molding.

Compared with the prior art, the utility model has at least the following beneficial effects:

in the scheme, through setting up second anticreep portion, recess, after plug body and the cooperation shaping of charger terminal mount casing, the anticreep portion of electrical apparatus terminal mount casing imbeds the recess of plug body to increased the joint strength between charger terminal mount casing and the plug body, improved the tensile ability of taking off between the two.

Through setting up the extension, avoid charger terminal mount casing and plug body cooperation department to avoid charger terminal to expose, through setting up second anticreep portion, tooth type structure, further increase charger terminal mount casing and plug body complex tensile ability of taking off, tooth type structure and the recess cooperation in the extension of moulding plastics formation form the strengthening rib structure, further strengthened the intensity of extension, thereby strengthen the tensile ability of taking off, improved the life of charger plug.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the disclosure and to enable a person skilled in the pertinent art to make and use the disclosure.

Fig. 1 is a schematic diagram of a three-dimensional structure of a charger terminal fixing frame shell and a plug body;

fig. 2 is a schematic view of a partially cut-away structure of the charger terminal holder housing, the plug body, the first and second anti-drop portions;

fig. 3 is a schematic perspective view of a charger terminal fixing frame shell, a first anti-falling part and a second anti-falling part matched with a first view angle;

fig. 4 is a schematic perspective view of a charger terminal holder housing, a first anti-drop portion, and a second anti-drop portion mated with a second viewing angle.

[ reference numerals ]

1. A charger terminal fixing frame shell; 2. a plug body; 3. an extension; 4. a first anti-drop portion; 5. a second anti-drop portion; 6. a tooth structure; 7. an anti-drop ring; 8. a groove; 9. filling a glue hole; 10. external teeth; 11. internal teeth.

While particular structures and devices are shown in the drawings to enable a clear implementation of embodiments of the utility model, this is for illustrative purposes only and is not intended to limit the utility model to the particular structures, devices and environments, which may be modified or adapted by those of ordinary skill in the art, as desired, and which remain within the scope of the appended claims.

Detailed Description

The utility model provides a pull-off prevention structure of a plug, which is described in detail below with reference to the accompanying drawings and specific embodiments. While the utility model has been described herein in terms of the preferred and preferred embodiments, the following embodiments are intended to be more illustrative, and may be implemented in many alternative ways as will occur to those of skill in the art; and the accompanying drawings are only for the purpose of describing the embodiments more specifically and are not intended to limit the utility model specifically.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, the terminology may be understood, at least in part, from the use of context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. In addition, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead, depending at least in part on the context, allow for other factors that are not necessarily explicitly described.

It will be understood that the meanings of "on … …", "over … …" and "over … …" in this disclosure should be interpreted in the broadest sense so that "on … …" means not only "directly on" but also includes meaning "directly on" something with intervening features or layers therebetween, and "over … …" or "over … …" means not only "on" or "over" something, but also may include its meaning "on" or "over" something without intervening features or layers therebetween.

Furthermore, spatially relative terms such as "under …," "under …," "lower," "above …," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented and the spatially relative descriptors used herein may similarly be interpreted accordingly.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a pull-off preventing structure of a plug, which includes a first pull-off preventing portion 4 and a second pull-off preventing portion 5 mounted on a housing 1 of a terminal holder of a charger, an extension portion 3 mounted on a plug body 2, the second pull-off preventing portion 5 being located outside the housing 1 of the terminal holder, the second pull-off preventing portion 5 being integrally formed with the housing 1 of the terminal holder by injection molding, the extension portion 3 being located on the plug body 2, the extension portion 3 being integrally injection molded with the plug body 2; the second anti-drop part 5 is embedded into the extension part 3 through injection molding and is matched with the groove at the inner side of the extension part 3 to achieve the purpose of releasing, the charger terminal fixing frame shell 1, the first anti-drop part 4 and the second anti-drop part 5 are of an integrated structure, the charger terminal is arranged on the charger terminal fixing frame shell 1, the first anti-drop part 4 is positioned in the plug body 2, the first anti-drop part 4 comprises two anti-drop rings 7 fixedly connected to the end part of the charger terminal fixing frame shell 1, the anti-drop rings 7 are provided with grooves 8, the grooves 8 are provided with glue filling holes 9, the charger terminal fixing frame shell 1, the grooves 8 and the anti-drop rings 7 are of an integrated structure, after the plug body 2 is matched with the charger terminal fixing frame shell 1, the plug body 2 is partially injected into the grooves 8 and the anti-drop rings 7, so that the connection strength between the charger terminal fixing frame shell 1 and the plug body 2 is increased, the anti-drop capacity between the two anti-drop rings is improved, as shown in fig. 3, and the second anti-drop part 5 is positioned in the extension part 3 on the plug body 2; the first anticreep portion 4 and the second anticreep portion 5 all are used for the anticreep of charger terminal mount casing 1 and plug body 2 cooperation installation back, second anticreep portion 5 includes tooth form structure 6 of fixed connection on charger terminal mount casing 1, tooth form structure 6 is located extension 3, extension 3 and plug body 2 are integrated into one piece structure, tooth form structure 6 and charger terminal mount casing 1 are integrated into one piece structure, tooth form structure 6 is including external tooth 10 and internal tooth 11 that are connected, as shown in fig. 4, the number of internal tooth 11 that is located on one side of charger terminal mount casing 1 is three, through setting up extension 3, avoid charger terminal mount casing 1 to produce the gap with plug body 2 cooperation department, thereby avoid charger terminal to expose, through setting up second anticreep portion 5, tooth form structure 6, further increase charger terminal mount casing 1 and plug body 2 complex tensile take-off ability, recess 8 divide into the multistage, its interval constitutes the strengthening rib, the tensile take-off force of enhancement extension 3, tooth form structure 6 is through injection molding embedded groove 8, specific tooth form structure 6 and the extension 3 that forms the strengthening rib that the tensile force of moulding, further strengthening rib has been formed through setting up, thereby the tensile strength of extension 3.

According to the technical scheme provided by the utility model, the anti-drop ring and the groove are arranged, and after the plug body and the charger terminal fixing frame shell are matched and molded, part of the plug body is injected into the groove and the anti-drop ring, so that the connection strength between the charger terminal fixing frame shell and the plug body is increased, and the anti-drop capacity between the charger terminal fixing frame shell and the plug body is improved.

Through setting up the extension, avoid charger terminal mount casing and plug body cooperation department to avoid charger terminal to expose, through setting up second anticreep portion, tooth type structure, further increase charger terminal mount casing and plug body complex tensile ability of taking off, tooth type structure and the extension cooperation of moulding plastics formation form the strengthening rib structure, further strengthened the intensity of extension, thereby strengthen tensile ability of taking off.

The utility model is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the utility model. In the following description of preferred embodiments of the utility model, specific details are set forth in order to provide a thorough understanding of the utility model, and the utility model will be fully understood to those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail so as not to unnecessarily obscure aspects of the present utility model.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in implementing the methods of the embodiments described above may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as: ROM/RAM, magnetic disks, optical disks, etc.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a pull-out prevention structure of plug, its characterized in that includes second anticreep portion (5) and extension (3) on plug body (2) of installing on charger terminal mount casing (1), second anticreep portion (5) are located the outside of terminal mount casing (1), second anticreep portion (5) with terminal mount casing (1) become integrative through injection moulding, extension (3) are located on plug body (2), extension (3) and plug body (2) injection moulding become integrative;

the second anti-falling part (5) is embedded into the extension part (3) through injection molding and is matched with a groove on the inner side of the extension part (3) to achieve the purpose of releasing.

2. The pull-out prevention structure of a plug according to claim 1, wherein the second pull-out prevention portion (5) includes a tooth-shaped structure (6) fixedly connected to the charger terminal holder housing (1), the tooth-shaped structure (6) being located in the extension portion (3).

3. The pull-out prevention structure of the plug according to claim 2, wherein the tooth-shaped structure (6) is of an integral structure with the charger terminal holder case (1).

4. A pull-out prevention structure of a plug according to claim 3, characterized in that the tooth structure (6) comprises external teeth (10) and internal teeth (11) connected.

5. The pull-out prevention structure of a plug according to claim 1, wherein the extension (3) includes a groove (8) provided inside the extension (3), the groove (8) being fitted with the second pull-out prevention portion (5).

6. The pull-out preventing structure of the plug according to claim 5, wherein the grooves (8) are divided into a plurality of sections, which are spaced apart from each other to form reinforcing ribs, and the pull-out preventing force of the extension portion (3) is enhanced.

7. Pull-off prevention structure of a plug according to claim 2, characterized in that the tooth structure (6) is embedded in the groove (8) by injection molding.