KR20200070612A - Connector - Google Patents

Abstract

The present invention relates to a connector configured to prevent a terminal from being deformed and prevent a terminal contact from being unstable due to the movement of a cable even after a female shell coupled to the cable is coupled to a male shell and, more specifically, to a FAKRA connector comprising female/male housings fastened to each other by a male and female coupling structure, the female shell installed in the female housing and having the end of the cable coupled thereto, and the male shell installed in the male housing and terminal-coupled to the female shell. On one end of the female shell coupled to the male shell, at least a plurality of terminal coupling portions extend to be formed at regular intervals along the circumferential end of the female shell in a longitudinal direction in which the female shell is coupled. At least one terminal support portion is formed in the male shell, to which the plurality of the terminal coupling portions are coupled, wherein the terminal support portion is inserted between the terminal coupling portions when the terminal coupling portions are coupled to prevent the terminal coupling portions from rotating along the circumferential surface of the male shell.

Description

Connector {CONNECTOR}

The present invention relates to a connector, and particularly, to a Parker connector configured to prevent the terminal contact from becoming unstable due to the flow of the cable and the terminal to be deformed even after the female shell to which the cable is coupled is coupled to the male shell. will be.

US Published Patent Publication No. 2003/0176104 A1 discloses a coaxial connector with a plastic housing according to the FAKRA standard system for SMB connections. A plastic housing is provided for preserving and protecting the connector and for pre-positioning the connector for connection with other connectors having a plastic housing. The housing is also provided with mechanical coding so that only the housings corresponding to each other can be plugged together.

Plastic housings for this type of coaxial connector, also known as FAKRA housings, are used in data transmission cables in the automotive technology sector. Such data transmission cables are, for example, coaxial cables based on electrical conductors or similar cables. The mechanical size of this type of FAKRA housing in the interface region, axial area of the housing cooperating with the complementary plug to achieve a mechanical connection between the two plastic housings, was revised in October 2004, DIN (German Industry Standard, Hereinafter referred to as "DIN") according to standard 72594-1. "Road vehicles-50 Ohm radio frequency interface (50Ω-RFI)-part 1: Dimensions and electrical" described in the DIN standard 72594-1 "Road vehicles-50 Ω radio frequency interface (50 RFI)-Part 1: Dimensions and electrical requirements)" specifies the plug and coupler of the interface with the impedance of 50 Ω (50 Ω-RFI) for the field of radio frequency applications for road vehicles, and guarantees communication inside and outside the vehicle. In this part, the size and electrical requirements and characteristics are specified, and their interchangeability is guaranteed. All famous vehicle manufacturers use these standards in their manufacturing. The content of these standards is established by the FAKRA.

The Automotive Standards Association in DIN (FAKRA) represents regional, national and international interest in standards for the automotive industry. FAKRA's areas of responsibility include all road vehicle compatibility, interchangeability and safety in accordance with DIN 70010 (excluding agricultural tractors), regardless of whether the road vehicle is equipped with an internal combustion engine, electric motor or hybrid drive. Areas that draft standards are included. FAKRA also sets standards for the bodywork of these road vehicles (excluding municipal vehicles, fire trucks and ambulances). FAKRA is also responsible for the standardization of all devices for the vehicles and body mentioned above and the standardization of cargo containers (ISO containers). Standardization not only promotes rationalization and quality assurance when manufacturing vehicles, but also promotes environmental durability. This standardization will also help current technological science for increasing vehicle and traffic safety and will benefit manufacturers and users.

1A is a perspective view showing the overall coupling structure of a conventional female housing and a mail housing, and FIG. 1B (a) is a combined perspective view of a female shell and a mail shell coupled to a conventional female housing and a mail housing, and FIG. 1B (B) is an exploded perspective view of a conventional female housing and a female shell and a mail shell coupled to the inside of the mail housing.

Referring to FIG. 1, the female housing 10 and the male housing 20 are male and female coupled to each other, and the female shell 11 is coupled to the female housing 10 and the mail housing 20 is connected to the female housing 10. The mail shell 21 is coupled. A cable (not shown) is electrically coupled to the female shell 11 and a terminal coupling structure between the female shell 11 and the mail shell 21 when the female housing 10 and the mail housing 20 are combined Have

At this time, the Parkra connector is coupled on the basis of the female shell 11 and the male shell 21, and the terminal coupling portion 12 is formed at regular intervals along the circumferential direction at the ends of the female shell 11 to form a female. When the shell 11 and the mail shell 21 are fastened to each other, the terminal coupling portion 12 of the female shell 11 presses the circumferential surface of one side of the mail shell 21 at a predetermined pressure and has a structure in which the terminals are contacted. . That is, the female shell 11 and the mail shell 21 are made of a conductor, and the contact surface itself serves as a terminal while the engaging inner surface of the female shell 11 presses the engaging outer surface of the mail shell 21.

However, in the case of the Parkra connector, the female housing 10 and the female shell 11 are rotatable in order to improve assembly. Therefore, the terminal contact state is unstable as the female shell 11 is rotated by the cable flow even after the coupling, and the problem that the terminal is deformed while the cable flow is continued has been raised.

Domestic registered patent No. 10-1394065

The technical problem to be solved by the present invention is to provide a connector to which the anti-rotation structure is applied to solve the above-described problem.

Another technical problem to be solved by the present invention is to provide a connector with improved terminal contact retention.

Another technical problem to be solved by the present invention is to provide a connector designed so that the terminal support portion is guided between the terminal coupling portions and is easily positioned when the female shell and the male shell are fastened.

According to a feature of the present invention for achieving the above technical problem, the connector of the present invention is installed on the female/male housing and the female housing which are fastened to each other by a male and female coupling structure, and the ends of the cables are provided. A connector comprising a female shell to be coupled and a mail shell to be terminal-connected to the female shell in the mail housing, wherein one end of the female shell coupled to the mail shell is a peripheral end of the female shell. At least a plurality of terminal coupling portions are formed at regular intervals in a lengthwise direction in which the female shell is coupled, and the male shell coupled with the plurality of terminal coupling portions is inserted between the terminal coupling portions when the terminal coupling portion is coupled. It is characterized in that at least one terminal support is formed to prevent the terminal coupling portion from rotating along the circumferential surface of the male shell.

In addition, a fitting groove is formed along an outer circumferential surface of the outer circumferential portion of the terminal coupling portion, and the fitting groove has at least one support ring that prevents the terminal coupling portion from spreading outward beyond a predetermined radius when coupled to the mail shell. It is characterized by being further combined.

In addition, one side of the support ring is characterized in that the open state.

In addition, the inner surface of the terminal coupling portion is characterized in that it is further provided with a terminal contact portion protruding inward so as to be in contact with the outer circumferential surface of the male shell when the female shell and the male shell are engaged.

One end of the terminal coupling portion is characterized in that it is formed to have an increasingly narrow width in the end direction.

The connector according to the present invention described above has the following effects.

First, the connection structure of the terminal coupling portion and the terminal support portion enables a more robust connection than the prior art, and it is possible to effectively prevent the female shell from rotating along the circumferential surface of the male shell even when the cable flows.

In addition, if a plurality of terminal coupling portions are formed at regular intervals, and the terminal support portion is inserted between each terminal coupling portion, the rotation preventing force can be greatly improved, and the terminal contact portion is formed protruding inward in each terminal coupling portion. By doing so, the terminal contact holding power can also be improved.

In addition, by preventing the terminal coupling portion from spreading over a certain radius in the outward direction even with the flow of the cable with the configuration of the support ring, it is possible to reinforce the terminal contact force and maintain the terminal contact force constant at all times.

In addition, by manufacturing one side of the support ring in an open form, it is possible to easily perform the fastening operation when combined.

In addition, by configuring the width of one end of the terminal coupling portion to taper so as to gradually decrease in the direction of the end portion, the guide portion is automatically moved between the terminal coupling portions by moving along the tapered surface of the terminal coupling portion when the female shell and the male shell are engaged. can do.

Figure 1a is a perspective view showing the overall coupling structure of a conventional female housing and a mail housing,
Figure 1b (a) is a perspective view of a conventional female shell and a mail shell and a mail shell coupled to the inside of the mail housing,
Figure 1b (b) is an exploded perspective view of a conventional female housing and a female shell and a mail shell coupled to the mail housing,
Figure 2 is a perspective view showing an overall coupling structure of the connector according to the present invention,
Figure 3 is an exploded perspective view of a female shell and a mail shell according to the present invention,
Figure 4 is a combined perspective view of the female shell and the mail shell according to the present invention,
Fig. 5 is a sectional view of Fig. 4;

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the embodiments of the present invention, when it is determined that detailed descriptions of related well-known structures or functions interfere with the understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), and the like can be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to the other component, but another component between each component It should be understood that may be "connected", "coupled" or "connected".

According to the drawings, the connector (Parkra connector) of the present invention is a female housing (F) and a male housing (M) that are fastened to each other by a male and female coupling structure. It is configured, the female housing (F), a female shell (100, female shell) is built in, and the mail housing (M) is provided with a mail shell (200, male shell).

The female housing (F) and the mail housing (M) are made of a non-conductive material such as plastic, and the female shell 100 and the mail shell 200 are made of a conductive material such as metal or electrically connected when combined. It has a structure.

On the other hand, the basic structure of the female housing (F), the mail housing (M), the female shell 100 and the mail shell 200 is the same as in the prior art, and it is determined that there is a concern that the subject matter of the present invention may be obscured. The detailed description of the structure will be omitted.

A cable (not shown) is electrically coupled to the female shell 100, and a terminal (not shown in the drawing) and a cable formed in the mail shell 200 as the female shell 100 and the mail shell 200 are conductor-coupled. It has a structure that is electrically connected.

Since the female shell 100 is formed in a cylindrical shape as a whole and installed in a rotatable structure in the female housing F for assembly convenience, the contact force between the female shell 100 and the mail shell 200 due to cable flow in the course of work This can degrade. Therefore, in the present invention, when the female shell 100 and the mail shell 200 are coupled to each other, the rotation of the female shell 100 due to cable flow, etc., and the terminals between the female shell 100 and the mail shell 200 In order to prevent a decrease in contact force, a rotation preventing structure is applied, which will be described in more detail with reference to FIGS. 3 to 5.

First, the female shell 100 applied to the present invention includes a terminal coupling portion 110, a support ring 120 and a terminal contact portion 130.

The terminal coupling part 110 is formed to extend to the coupling end of the female shell 100 and is coupled to one side of the mail shell 200. That is, at one end of the female shell 100 along the circumference of the female shell 100, the female shell 100 is coupled to the mail shell 200 in the longitudinal direction, the terminal coupling portion 110 at regular intervals. Is formed. A plurality of terminal coupling portions 110 may be spaced apart at regular intervals along the circumference of the coupling end portion of the female shell 100, and in one embodiment of the present invention, the terminal coupling portion 110 is composed of eight. The spaces between the terminal coupling portions 110, that is, the spaces between the terminal coupling portions 110, respectively, form the support groove 111. The width of the support groove 111 corresponds to the width of the terminal support portion 210 to be described later.

One end of the terminal coupling portion 110 is formed to have an increasingly narrow width in the end direction. That is, as shown in'A' portion of FIG. 3, the coupling end of the terminal coupling portion 110 has a triangular shape, and has a tapered shape to widen from the front end to the rear end based on the coupling direction. At this time, the front end portion is rounded and guide surfaces 113 are formed at both rear ends of the front end portion, and when the female shell 100 is coupled to the mail shell 200, the terminal support portion 210, which will be described later, rides on the guide surface 113. Sliding is guided to the support groove (111). In other words, if the tip has a sharp edge, the female shell 100 may be deformed, such as bending or bending the tip of the female shell 100 when the female shell 200 is fastened to the terminal support 210 when fastened to the mail shell 200. , Even if the terminal support portion 210 is caught by the rounding shape, the terminal support portion 210 slides along the guide surface 113 and is gently inserted into the support groove 111.

A fitting groove 112 is formed along the circumferential direction on the outer circumferential surface of the rear end of the terminal coupling portion 110. Support ring 120 is coupled to the fitting groove 112 to be seated. The support ring 120 prevents the terminal coupling portion 110 from being opened outside a predetermined radius when the female shell 100 is coupled to the male shell 200. Therefore, the inner radius of the support ring 120, the elastic modulus, etc., when the female shell 100 and the mail shell 200 are coupled, the terminal contact portion 130, which will be described later, should not fall off from the mail shell 200. It is desirable to decide. The support ring 120 may be configured as one or a plurality. In addition, the support ring 120 is configured to open one side of the support ring 120 rather than the closed ring form so that the fastening operation can be performed more easily and the elastic modulus can be set when fastened to the fitting groove 112. desirable.

On the other hand, referring to Figure 5, the inner shell of the terminal coupling portion 110, the female shell 100 and the female shell 200 when the coupling of the female shell 200 coupled to the outer circumferential surface of the female shell (100) ) Is provided with a terminal contact portion 130 protruding inward so as to be supported. Since the terminal contact unit 130 is located inside the rear side of the terminal coupling unit 110 rather than the front end portion, the terminal defect of the terminal coupling unit 110 may be solved due to a gap between the front end portion and the like. In addition, the terminal contact portion 130 is formed on the inner surface of the terminal coupling portion 110 immediately adjacent to the fitting groove 112 in the front end direction from the fitting groove 112, so that the terminal contact force and the contact by the support ring 120 also The holding power is greatly improved.

The mail shell 200 is a terminal coupled to a board or the like, and the female shell 100 as described above is coupled to one side.

One side of the mail shell 200 is inserted into the inside of the female shell 100, that is, the terminal coupling portion 110, and thus corresponds to the inner shape of the terminal coupling portion 110. At this time, a terminal support portion 210 is formed in a longitudinal direction in which the female shell 100 is coupled to one side of the circumferential surface of the mail shell 200. The terminal support part 210 is inserted into the support groove 111 formed between the terminal coupling parts 110 as described above, so that the female shell 100 is along the circumferential surface of the mail shell 200 by cable flow or the like. It prevents rotation. Therefore, the width of the terminal support portion 210 corresponds to the width of the support groove 111, and the height of the terminal support portion 210 is preferably configured to be at least the same as the height of the support groove 111.

When explaining the assembled state of the female shell 100 and the mail shell 200 of the connector of the present invention described above is as follows.

First, the support ring 120 is coupled to the fitting groove 112 of the female shell 100.

The terminal coupling portion 110 of the female shell 100 to which the support ring 120 is coupled is fastened to one side of the male shell 200. At this time, the terminal support portion 210 of the mail shell 200 may be directly inserted into the support groove 111 in a fixed position, but slides on the guide surface 113 of the terminal coupling portion 110 to support the groove ( 111).

As the terminal support portion 210 is inserted into the support groove 111, the female shell 100 is positioned and coupled. That is, the female shell 100 may rotate a predetermined angle until the terminal support 210 is inserted into the support groove 111, but after the terminal support 210 is inserted into the support groove 111, the female shell Since the shell 100 and the mail shell 200 are assembled to each other, rotation of the female shell 100 is prevented.

In the pre-assembled state, the terminal contact unit 130 is supported on the outer circumferential surface of the mail shell 200 at each position where the terminal coupling units 110 are arranged at regular intervals. At this time, the terminal coupling portion 110 may be opened in the outer direction while being coupled to one side of the mail shell 200, but is prevented from being opened beyond a certain radius by the support ring 120 fastened to the fitting groove 112 The terminal contact force can always be kept constant. Particularly, since the degree of opening of the terminal contact portion 130 adjacent to the support ring 120 becomes smaller than a certain radius, the terminal contact portion 130 is formed compared to that formed at the front end portion of the terminal coupling portion 110. The contact force of 130 can be greatly improved.

Due to the above-described combination, the terminal contact force can always be kept constant even in the flow of the cable and the like, and rotation of the female shell 100 is prevented, so that terminal deformation and swelling can be minimized.

In the above, even if all the components constituting the embodiments of the present invention are described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, if it is within the scope of the present invention, all of the components may be selectively combined and operated. In addition, the terms "include", "consist" or "have" as described above mean that the corresponding component can be intrinsic, unless specifically stated otherwise, to exclude other components. It should not be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the contextual meaning of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the equivalent range should be interpreted as being included in the scope of the present invention.

10: female housing 11: female shell
12: terminal coupling section 20: mail housing
21: mail shell
100: female shell 110: terminal coupling portion
111: support groove 112: fitting groove
113: guide surface 120: support ring
130: terminal contact
200: mail shell 210: terminal support
F: Female housing
M: Mail housing

Claims (5)

A female/male housing that is fastened to each other by a male and female coupling structure, and a female shell that is installed on the female housing and the ends of the cables are coupled, and is installed on the mail housing and terminalally coupled to the female shell. In the connector comprising a mail shell,
At one end of the female shell coupled to the mail shell, at least a plurality of terminal coupling parts are formed at regular intervals in the longitudinal direction in which the female shell is coupled along the circumferential end of the female shell,
A connector in which at least one terminal support part is formed in the male shell in which the plurality of the terminal coupling portions are coupled to be inserted between the terminal coupling portions when the terminal coupling portion is coupled to prevent the terminal coupling portion from rotating along the circumferential surface of the mail shell. .
According to claim 1,
A fitting groove is formed along an outer circumferential surface of the outer circumferential portion of the terminal coupling portion, and at least one support ring that prevents the terminal coupling portion from spreading outward beyond a predetermined radius when coupled to the mail shell is further coupled to the fitting groove. Connector.
According to claim 2,
One side of the support ring is an open connector.
According to claim 1,
A connector provided with a terminal contact portion protruding inward so as to be in contact with the outer circumferential surface of the mail shell when the female shell and the mail shell are joined to the inner surface of the terminal coupling part.
The method according to any one of claims 1 to 4,
One end of the terminal coupling portion is formed to have an increasingly narrow width in the end direction.

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