CN113258347B

CN113258347B - Positioning structure, wire positioning structure and manufacturing method thereof

Info

Publication number: CN113258347B
Application number: CN202010089818.0A
Authority: CN
Inventors: 杨闵智
Original assignee: KS Terminals Inc
Current assignee: KS Terminals Inc
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2023-09-08
Anticipated expiration: 2040-02-13
Also published as: CN113258347A

Abstract

The application provides a positioning structure which is arranged on the surface of an electric wire and comprises a fixing piece, an O-shaped ring and another fixing piece which are sequentially sleeved on the electric wire, and an installation piece is embedded to cover the components. When the mounting piece is formed, plastic can be filled in a gap between the O-shaped ring and the fixing piece, so that the inner component is difficult to move along the surface of the electric wire, and the inner component can be ensured not to be pulled by external force to fall off.

Description

Positioning structure, wire positioning structure and manufacturing method thereof

Technical Field

The application relates to an electric wire structure, in particular to a waterproof and push-pull resistant electric wire positioning structure.

Background

When the metal terminal at the tail end of the wire is electrically connected with another electronic component, the wire at the rear of the terminal is simultaneously positioned around the electronic component, so that the electrically connected part is prevented from being pulled by external force to fall off.

If the metal terminal is installed on the precision component, the metal terminal can also be designed to pass through the wire inlet hole of the protective shell, so that the metal terminal is connected with the electronic component in the shell, and furthermore, in order to completely isolate external moisture, the O-shaped ring is installed on the surface of the wire provided with the terminal to seal the wire inlet hole. However, this mounting makes the metal terminal necessarily smaller in volume than the O-ring to ensure that the terminal can pass completely through the wire-in hole, and therefore, the tight fit of the O-ring alone cannot completely prevent the wire from being pulled by an external force to come off, or prevent the waterproof function from being lost due to the pulling.

Disclosure of Invention

Therefore, the main objective of the present application is to provide a positioning structure for electric wires, which has waterproof and anti-push-pull functions.

According to the present application, there is provided a positioning structure for mounting on an electric wire, comprising an inner structure and a mounting member. The internal structure comprises a fixing piece, an O-shaped ring and another fixing piece which are sleeved on the electric wire in sequence. The mounting piece is buried to cover the internal structure, and a plurality of grooves are formed on the surface of the mounting piece to be positioned at a positioning perforation of the protective shell.

Furthermore, the fixing piece of the internal structure has a columnar appearance, and the profile of the cross section of the fixing piece is larger than that of the O-shaped ring, so that plastic can be filled between the O-shaped ring and the fixing piece when the plastic is embedded and injected, and the internal structure of the mounting piece is prevented from being pulled out of the mounting piece by an external wire. In addition, the fixing piece can also have the appearance of a right-angle column, so that the external electric wire is prevented from being aged due to torsional abrasion.

In addition, the groove on the surface of the mounting member may be provided with an O-ring to seal the positioning hole of the protective housing, and the groove may also be used for mounting a positioning member to position a portion of the mounting member inside the protective housing.

In view of the above, the present application further provides a method for manufacturing an electric wire, comprising the steps of: two fixing pieces and an O-shaped ring are arranged on the surface of the electric wire, so that the O-shaped ring is positioned between the two fixing pieces; and embedding and coating the two fixing pieces and the O-shaped ring to form a mounting piece, and forming at least one groove on the surface of the mounting piece.

Other features and embodiments of the present application are described in detail below with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a terminal wire positioning structure;

FIG. 2 is a schematic view of the installation of the terminal wire of FIG. 1;

FIG. 3 is an installation cross-sectional view of the terminal wire of FIG. 1;

fig. 4 is a schematic view of a connector wire positioning structure.

Symbol description

10: wire 20: terminals 30, 60: o-ring

21. 40: metal clasp 50: mounting member 51: rear end

52: front ends 55, 56: groove 70: connector with a plurality of connectors

80: positioning perforations 81: u-shaped fastener

Detailed Description

In order to describe the embodiments and achieve the effects of the present application, an example is provided and described below with reference to the drawings.

Referring to fig. 1 to 3, in the wire positioning structure shown by taking a connection terminal connected to a motor stator as an example, when the wire positioning structure is installed, the metal terminal 20 of the wire 10 passes through the positioning through hole 80 of the motor protection housing (shown in fig. 2) to be electrically connected with the conductive component of the internal stator. In the present embodiment, the end of the wire-mounted metal terminal is described as the front end, so as to meet the general understanding of those skilled in the art.

The wire positioning structure includes an inner structure and a mounting member 50 embedded therein to cover the inner structure. The internal structure is that the metal snap ring 40, the O-shaped ring 30 and the terminal 20 are sleeved in sequence from the front end of the electric wire and positioned on the surface of the electric wire, and the appearance of the mounting part of the metal snap ring 40 and the terminal 20 is slightly columnar so as to be used as a fixing piece of the two opposite side surfaces of the O-shaped ring 30.

Because the metal retaining ring 40, the O-shaped ring 30 and the terminal 20 mounting part form discontinuous surfaces on the surface of the electric wire, when the mounting piece 50 embeds the internal structure, the plastic can fill the gaps among the metal retaining ring 40, the O-shaped ring 30 and the terminal 20 mounting part, so that the internal structure is not easy to be dragged out of the mounting piece 50 by an external electric wire, the anti-dragging effect is achieved, and the O-shaped ring 30 in the mounting piece 50 can prevent water vapor from entering the protective shell from the inside of the mounting piece 50. In addition, the metallic grommet 40 has the appearance of a right-angle post, and prevents the external electric wire from being twisted to wear and age the inside of the mount 50.

The mount 50 has a somewhat cylindrical appearance for positioning the embedded wires in the motor protective housing. The front end 52 of the mounting member 50 completely covers the front end of the electric wire 10 and the mounting portion of the terminal 20, the rear end 51 of the mounting member 50 is radially protruded, the middle section of the mounting member 50 has a contour conforming to the aperture of the positioning hole 80 and is provided with a plurality of annular grooves 55, 56 for positioning the O-ring 60 and the U-shaped fastener 81. Referring to the installation sectional view of fig. 3, after the terminal 20 passes through the positioning hole 80, the rear end 51 of the mounting member 50 is locked to the outer side of the protection housing, the middle section of the mounting member 50 passes through the positioning hole 80, and then the U-shaped fastener 81 is mounted to the annular groove 56, at this time, the mounting member 50 at the front end of the annular groove 56 is limited to the inner side of the protection housing, and the annular groove 55 of the mounting member 50 is located on the inner annular wall of the positioning hole 80, so as to seal the positioning hole 80 through the O-ring 60, thereby preventing moisture from entering the protection housing from the outside of the mounting member 50.

Referring to fig. 4, a cable fixing device is shown by taking a connector cable as an example, the internal structure is disposed on the surface of the cable embedded with a plurality of wires, and a flat cable connector 70 is mounted at the front end of the cable. The difference from the previous embodiment is that the present embodiment uses the metal buckles 21, 40 as two fixing members on both sides of the O-ring 30, and the profile of the two fixing members is larger than that of the O-ring 30. During embedding, plastic fills the surfaces of the two sides of the O-ring, making it difficult for the internal structure to be pulled out of the mounting member 50.

In other embodiments, a groove may be provided in the middle section of the mounting member 50, and after passing through the positioning hole 80, the groove may be located on the inner side of the protective housing and install the U-shaped fastener 81, so that a portion of the mounting member 50 is locked on the surface of the protective housing, and only the O-ring 30 with an internal structure is used to block external moisture.

The application also discloses a manufacturing method of the electric wire, which comprises the following steps:

in step S10, two fixing members and an O-ring 30 are disposed on the surface of the electric wire 10, such that the O-ring 30 is located between the two fixing members, and the fixing members may be metal rings or terminal connection portions according to the type of the electric wire. The fixing piece has a columnar appearance and a cross section larger than that of the O-shaped ring, so that the fixing piece is adjacent to the side surface of the O-shaped ring and forms a cross section with the two sides of the O-shaped ring.

In step S20, the mounting member 50 is formed by embedding and coating the two fixing members and the O-ring 30, and the plastic fills the gap between the fixing members and the O-ring 30, so that the fixing members and the O-ring 30 inside the mounting member 50 are not easily pulled out of the mounting member 50 by external force. The surface of the mounting member 50 may also be recessed to mount or locate the mounting seat of the protective housing. The grooves on the surface of the mounting piece 50 can be provided with waterproof pieces to ensure the water vapor blocking, or positioning pieces to clamp the mounting piece 50 on the mounting seat.

The above examples and/or embodiments are merely for illustrating the preferred embodiments and/or implementations of the present technology, and are not intended to limit the embodiments and implementations of the present technology in any way, and any person skilled in the art should be able to make some changes or modifications to the embodiments and/or implementations without departing from the scope of the technical means disclosed in the present disclosure, and it should be considered that the embodiments and implementations are substantially the same as the present technology.

Claims

1. A positioning structure for mounting to an electrical wire, comprising:

an O-shaped ring sleeved on the surface of the electric wire;

at least two fixing pieces positioned on two side surfaces of the O-shaped ring;

the mounting piece is subjected to embedding molding to cover the O-shaped ring and the fixing pieces, and the O-shaped ring and the fixing pieces form discontinuous surfaces on the surface of the electric wire;

wherein at least one of the fixing members is in a corner post shape.

2. The positioning structure of claim 1, wherein the mounting surface has at least one recess.

3. The positioning structure according to claim 1, wherein the mounting member has a waterproof member or a positioning member provided on a surface thereof.

4. The positioning structure of claim 1, wherein the fixing members have a larger profile than the O-ring.

5. An electric wire passing through and positioned in a positioning hole of a housing, comprising the positioning structure of any one of claims 1 to 4, an outer surface of a mounting member of the positioning structure being positioned in the positioning hole, an O-ring and at least two fixing members being wrapped inside the mounting member.

6. A method of manufacturing an electric wire, comprising:

arranging two fixing pieces and an O-shaped ring on the surface of an electric wire, so that the O-shaped ring is positioned between the fixing pieces, the O-shaped ring and the fixing pieces form a discontinuous surface on the surface of the electric wire, and at least one fixing piece is in a corner column shape; and

the two fixing pieces and the O-shaped ring are buried and coated to form a mounting piece, and at least one groove is formed on the outer surface of the mounting piece.

7. The method of claim 6, wherein the groove is a ring groove.

8. The method of claim 6, wherein the plurality of fixing members have a profile larger than the O-ring.