JP5357563B2 - High voltage multi-pole plug connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: since it is required to provide a long insulation distance between adjacent terminals in order to secure electrical performance of a high voltage used for a power supply, in a multipole plug connector to connect a multicore cable, making the pug connecter compact and reducing its mounting area are precluded. <P>SOLUTION: This multipole plug adaptable to a high voltage is composed of a multipole plug A in which the contact parts 5 of a signal terminal are provided on the end face 3 and the peripheral face 4 of a protrusion 2, and a pair of facing prismatic cut grooves 6 having the end face sides and the peripheral face sides opened toward the based part 1 side from the end face of the protrusion in parallel with its axial center are formed, and the contact parts of a high voltage current terminal are provided on the bottom faces 16 of the cut grooves, and a multipole socket in which a recessed and bored part for the protrusion of the multipole plug to be inserted and to get engaged with is formed on the inner diameter side, the contact parts of the signal terminal are provided at positions corresponding to the bottom face and the inner peripheral surface of the recessed and bored part respectively, a prismatic protrusion is formed from the bottom face, and the contact part of the high voltage current terminal is formed at a position corresponding to the end face of the prismatic protrusion. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a high-voltage compatible multipolar plug connector, and more particularly, to a compact high-voltage compatible multipolar plug connector that can meet the demand for narrowing the mounting space.

  A multi-pole connector is an electrical connector composed of a multi-pole plug and a multi-pole socket into which the multi-pole plug is inserted and fitted, and is widely used in various electronic devices such as automobiles, industrial equipment, and medical equipment. Many have high voltage terminals.

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  In the conventional multipolar plug connector, in order to maintain the electrical performance, it is usual to secure the insulation distance between adjacent terminals by extending the distance on the plane. Also, attempts have been made to secure electrical performance by providing a beam-like step on the plane between the terminals, thereby increasing the creepage distance between the terminals.

  However, in order to increase the insulation distance between the terminals, it is necessary to increase the mounting area on the plane. On the other hand, to increase the creepage distance by providing a step like a beam between the terminals, increase the thickness. Whichever method is used, the increase in size is inevitable, and as a result, the mounting area increases, and the demand for downsizing of the equipment and the reduction of the mounting area cannot be fully met. It was.

  In particular, in the case of a multipolar plug connector having a high-voltage line used for a power source among a plurality of terminals, it is necessary to provide a long insulation distance in order to ensure its electrical performance. In order to secure it by the clearance distance and creepage distance, the mounting area was inconveniently large.

The present invention has been made as a solution to the above-mentioned problems in the multipolar plug connector having the high-voltage current conductor, and has a sufficient electrical performance, is compact, and is sufficient for the demand for a narrow mounting area. The object is to provide a multi-pole plug connector that can meet the requirements.

The distal end side of the base with a hollow cylindrical, insulative columnar projections made of material formed concentrically, the protrusion end face and the contact portions of the signal terminals in a proper position of the peripheral surface contacting surface thereof Are formed so as to be substantially perpendicular to the axial center, and a pair of opposed prismatic shapes in which the end surface side and the peripheral surface side are open from the end surface of the protrusion in parallel to the axial center toward the base side. A multipolar plug having a notch groove formed therein, and a bottom surface of the notch groove provided with a high-voltage current terminal contact portion shifted from the signal terminal ; A concave hole is formed on the side where the protrusion of the multipolar plug is inserted and fitted, and the signal terminal of the multipolar plug contacts the corresponding position on the bottom surface and the inner peripheral surface of the concave hole. A contact portion of a signal terminal that is in electrical contact with the portion is provided, A multipolar socket in which a prismatic protrusion into which the cutout groove of the multipolar plug fits is formed from the bottom surface, and a contact portion for a high-voltage current terminal is formed at a corresponding position on the end surface of the prismatic protrusion The above-mentioned problems have been solved by constructing a high-voltage compatible plug connector.

Fitted insert a protrusion of the multipolar plug multipole socket凹穿portion, the contact portion of the contact portion and the high voltage current terminal of each of the signal terminals by pressure contact, in those things which electrically conductive through However, the contact portion of the high-voltage current terminal of the multipolar plug is formed on the bottom surface of the notch groove so as to be shifted from the signal terminal, so that each of the signal terminal and the high-voltage current terminal A sufficient creepage distance is ensured between the contact parts, and the overall dimensions of the multi-pole plug and multi-pole socket can be reduced compared with the case where the insulation distance is secured on the same plane, and the mounting area is reduced. Narrowing is realized.

  In addition, when the pair of notch grooves formed in the protrusions are asymmetric, it is possible to prevent erroneous fitting of the multipolar plug to the multipolar socket.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The expanded perspective view of the principal part of the multipolar plug A which is a component of this invention. Similarly, the expanded perspective view of the principal part of the multipolar socket B which is the component.

The prismatic cutout grooves formed on the projecting portion of the multipolar plug, by providing the contact portion of the high-voltage current terminal on the bottom of the notched groove, the contact portion and the contact portion of signal terminals of the high-voltage current terminal A significant feature exists in that a step is created between them, thereby ensuring a creepage distance between them.

  The high-voltage compatible multipolar plug connector according to the present invention includes a multipolar plug A and a multipolar socket B into which the multipolar plug A is inserted and fitted.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a base portion of the multipolar plug A, which has an air cylindrical shape and is made of a synthetic resin having insulating properties. A cylindrical projection 2 made of a synthetic resin having an insulating property with a smaller diameter is formed concentrically on the distal end side of the base 1, and an end surface 3 and a peripheral surface 4 of the projection 2 are formed. The contact portion 5 of the signal terminal is formed at an appropriate position so that the contact surface thereof is substantially perpendicular to the axis .

A pair of prismatic cutout grooves 6 and 6 having openings on the end surface 3 side and the peripheral surface 4 side are formed in parallel to the axial center from the end surface 3 of the protrusion 2. The bottom surface 16 of the notch groove 6 is formed in a direction perpendicular to the axis, that is, in a direction parallel to the end surface 3. The bottom surface 16 is formed so that the contact portion 7 of the high-voltage current terminal is displaced from the contact portion 5 of the signal terminal . The pair of cutout grooves 6 and 6 may be formed asymmetrically. In that case, erroneous insertion into the multipolar socket B described later can be prevented.

  Further, a multi-core cable 18 is inserted through the rear end surface 8 of the base 1 having a columnar shape, and the signal conductor and the high-voltage current conductor in the multi-core cable 18 are respectively inside the base 1. It is connected to the corresponding signal terminal and high-voltage current terminal.

On the other hand, as shown in FIG. 3, the multipolar socket B electrically connected to the multipolar plug A has a cylindrical shape, and its rear end is fixed to the substrate 17. A concave hole 9 into which the protrusion 2 of the pole plug A is inserted and fitted is formed. The protrusion 2 of the multipolar plug A is inserted and fitted into the bottom surface 10 and the inner peripheral wall 11 of the concave hole 9. The contact portions 12 of the signal terminals that are in electrical contact with the contact portions 5 of the multipolar plug A are formed at positions corresponding to the contact points.
Furthermore, a prismatic projection 13 into which the cutout groove 6 of the multipolar plug A is fitted is formed from the bottom surface 10, and a contact portion 15 for a high-voltage current terminal is provided on the end surface 14 of the prismatic projection 13. ing. Of course, when the cutout grooves 6 and 6 of the multipolar plug A are formed asymmetrically, the prismatic protrusions 13 and 13 are also formed asymmetrically corresponding to this.

The examples are intended to have a configuration as described above, as indicated by the arrows in FIG. 1, the凹穿portion 9 of the multipolar socket A fitted insertion protrusions 2 of the multipolar plug B, and contact portion 5 of the signal terminals and 12, and is pressed against the contact portion 7 and 15 of the high-voltage current terminal, although these things to electrically conductive through, the high-voltage current terminals of the multipolar plug a Since the contact portion 7 is formed on the bottom surface 16 of the notch groove 6, a step is formed between the contact portion 5 and the fixed portion of the contact portion 5 of the signal terminal. As compared with the case of securing an insulation distance on the same plane, the overall dimensions of the multipolar plug A and the multipolar socket B can be reduced, and the mounting area can be reduced.

  In addition, when the pair of cutout grooves 6 formed in the protrusion 2 is asymmetrical, it is possible to prevent erroneous fitting of the multipolar plug A to the multipolar socket B.

  It can be widely used for various electronic devices such as automobiles, industrial devices, and medical devices.

A Multi-polar plug B Multi-polar socket 1 Base 2 Projection 3 End surface 4 Circumferential surface 5 Contact portion of signal terminal 6 Notch groove 7 Contact portion of high-voltage current terminal 8 Rear end surface 9 Recessed portion 10 Bottom surface 11 Inner peripheral wall 12 Signal Terminal contact portion 13 Square columnar protrusion 14 End surface 15 High voltage current terminal contact portion 16 Bottom surface 17 Substrate 18 Multi-core cable

Claims (2)

The distal end side of the base with a hollow cylindrical, insulative columnar projections made of material formed concentrically, the protrusion end face and the contact portions of the signal terminals in a proper position of the peripheral surface contacting surface thereof Are formed so as to be substantially perpendicular to the axial center, and a pair of opposed prismatic shapes in which the end surface side and the peripheral surface side are open from the end surface of the protrusion in parallel to the axial center toward the base side. A multipolar plug having a notch groove formed therein, and a bottom surface of the notch groove provided with a high-voltage current terminal contact portion shifted from the signal terminal ; A concave hole is formed on the side where the protrusion of the multipolar plug is inserted and fitted, and the signal terminal of the multipolar plug contacts the corresponding position on the bottom surface and the inner peripheral surface of the concave hole. A contact portion of a signal terminal that is in electrical contact with the portion is provided, A multipolar socket in which a prismatic protrusion into which the cutout groove of the multipolar plug fits is formed from the bottom surface, and a contact portion for a high-voltage current terminal is formed at a corresponding position on the end surface of the prismatic protrusion A high-voltage-compatible plug connector.   2. The plug connector for high voltage according to claim 1, wherein the pair of cutout grooves of the multipolar plug and the prismatic protrusions of the pair of multipolar sockets corresponding thereto are formed in an asymmetric shape.

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