JP2016115562A - Electrical connector - Google Patents

Abstract

An object of the present invention is to prevent a mating connector from being inserted and prevent a shield case or a mating connector from being damaged. An inner shield case 40 of an electrical connector 1 protrudes so as to narrow an interval between the insertion hole 50 and the insertion hole 50 in the vertical direction, and a fitting part 61 and a fitting part 62 adjacent to each other in the insertion hole 50 are provided. By forming a plurality of mating connectors with different left and right widths so that they can be fitted into the insertion hole 50 from the front. The protrusion 60 includes an inclined surface 60a that abuts on a mating connector that is narrower than the left and right widths of the insertion hole 50 that is fitted into the fitting portion 61, and a mating connector that bulges from the inclined surface 60a and has a narrow width. And a movement restricting portion 70 that restricts movement in the width direction. [Selection] Figure 1

Description

  The present invention relates to an electrical connector having a shield case.

  As a conventional electrical connector, there is known an electrical connector that forms a fitting portion to be fitted with a mating connector by a shield case formed of a thin metal plate. Patent Document 1 discloses an electrical connector in which a fitting portion that enables fitting of a plurality of mating connectors having different left and right widths is provided in a shield case.

  In the electrical connector disclosed in Patent Document 1, the mating portions that can be mated with the mating connector are narrowed along the mating direction of the mating connector at the intermediate portion in the width direction, thereby being adjacent to each other in the width direction. A plurality of fitting portions are formed. Moreover, in the electrical connector of patent document 1, the intermediate part by the side of one fitting part is formed as an inclined surface among the some fitting parts adjacent to each other, and it has a width | variety in the intermediate part by the side of one fitting part. The contact part which can narrow the dimension of the one fitting part in the direction and contact the mating connector is provided.

  Such a contact portion is formed by cutting a part of the lower side of the inclined surface formed of the metal plate of the metal shell horizontally with respect to the width direction. By providing such an abutting portion, when the mating connector is fitted to the electrical connector, the mating connector and the abutting portion are brought into contact with each other so that Movement can be regulated.

JP 2009-277497 A

  However, in Patent Document 1, the movement restricting portion that abuts on the mating connector and regulates the movement of the mating connector in the width direction is formed in a state where the metal plate is cut and raised and cantilevered. If a large stress is applied to the movement restricting part when the mating plug is fitted, the movement restricting part may be plastically deformed, making it impossible to insert the mating connector or shielding. There is a problem that the case or the mating connector is damaged.

  An object of the present invention is to provide a mating connector by preventing plastic deformation of the movement regulating portion when a movement regulating portion that regulates movement in the width direction of the mating connector to be connected is provided in a shield case formed of a metal plate. It is an object of the present invention to provide an electrical connector that can prevent a state in which it cannot be inserted and can prevent a shield case or a counterpart connector from being damaged.

The electrical connector according to the present invention has an insulating housing, a conductive contact fixed to the housing, and a shield case formed of a metal plate attached to the housing, An insertion hole in which a part of the contact is located and the front is opened to the outside, a first fitting portion and a second fitting that protrude so as to narrow the interval in the vertical direction of the insertion hole and are adjacent to each other in the insertion hole A plurality of mating connectors having different left and right widths by forming a fitting portion so that the mating connector can be fitted into the insertion hole from the front, and the protruding portion is the first fitting portion. An inclined surface that contacts a mating connector having a width narrower than the left and right widths of the insertion hole that is fitted to the insertion hole, and a movement in the width direction of the mating connector having a narrow width that bulges from the inclined surface. Transfer And a regulating portion.

  The mating connector narrower than the left and right widths of the insertion hole fitted in the first fitting portion abuts on the inclined surface and is restricted from moving in the width direction by the movement restricting portion. Even when a large stress is applied to the movement restricting part by, for example, twisting the narrow mating connector fitted to the first fitting part, the movement restricting part has a shape that bulges from the inclined surface. Does not plastically deform.

  According to the present invention, when the movement restricting portion for restricting the lateral movement of the mating connector to be connected is provided in the shield case formed of the metal plate, the mating connector can be removed by preventing plastic deformation of the movement restricting portion. It is possible to prevent a state in which it cannot be inserted and to prevent the shield case or the mating connector from being damaged.

It is the perspective view seen from the diagonal front above the electrical connector which concerns on embodiment of this invention. It is the perspective view seen from the diagonally forward lower part of the electrical connector which concerns on embodiment of this invention. It is the perspective view seen from diagonally forward above the shield case in the embodiment of the present invention. It is a front view of the shield case in the embodiment of the present invention. It is a front view of the protrusion part in embodiment of this invention. It is a side view of the protrusion part in embodiment of this invention. It is a front view of the shield case which inserted the other party connector of the width same as the width of the insertion hole in the embodiment of the present invention. It is a front view of the shield case which inserted the other party connector narrower than the width | variety of the insertion hole in embodiment of this invention.

  Hereinafter, electrical connectors according to embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In the figure, the x-axis, y-axis, and z-axis form a three-axis orthogonal coordinate system. The positive direction of the y-axis is the forward direction, the negative direction of the y-axis is the backward direction, the x-axis direction is the left-right direction, and the z-axis is A description will be given assuming that the positive direction is upward and the negative direction of the z-axis is downward.

<Configuration of electrical connector>
The configuration of the electrical connector 1 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1 and 2.

  The electrical connector 1 includes a housing 10, a contact 20, an outer shield case 30, and an inner shield case 40.

  The housing 10 is made of an insulating material. The housing 10 includes a plate-like contact support portion 12 and a contact support portion 13 that extend forward from the front wall 11.

  A plurality of contacts 20 are provided, are formed of an electrically conductive material, have an elongated plate shape, and are arranged and fixed to the housing 10 in the left-right direction. The contact 20 includes a connection portion 21 supported by the contact support portion 12 and the contact support portion 13, and a terminal portion 22 that protrudes outward from the housing 10 and is bent into a crank shape.

  The outer shield case 30 is formed by bending a metal plate into a U-shape, an upper wall portion 31 covering the upper side of the inner shield case 40, a side wall portion 32 covering the left and right sides of the inner shield case 40, A leg portion 33 extending downward from the lower end of the side wall portion 32 and connected to a ground portion of a substrate (not shown), and a locking hole 34 penetrating in the thickness direction in the side wall portion 32 are provided.

  The inner shield case 40 is formed by bending a metal plate and is attached to the housing 10. The inner shield case 40 is fixed to the housing 10 by engaging the concavo-convex shape at one end in the bending direction of the plate material with the concavo-convex shape at the other end. The inner shield case 40 is connected to the outer shield case 30 and is connected to the ground of the substrate via the legs 33 of the outer shield case 30. The inner shield case 40 may be provided with a leg portion connected to the ground portion of the substrate.

<Configuration of inner shield case>
The configuration of the inner shield case 40 in the embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 6.

  The inner shield case 40 includes an upper wall part 41, a side wall part 42, a side wall part 43, a bottom wall part 44, a side wall part 45, an insertion hole 50, and a protruding part 60.

  The upper wall portion 41 is disposed to face the bottom wall portion 44, and the upper surface is covered with the upper wall portion 31 of the outer shield case 30. The upper wall portion 41 is provided with an insertion guide portion 47 that extends obliquely upward and forward from the front end of the upper wall portion 41.

  The side wall portion 42 is connected to the upper wall portion 41 and is disposed to face the side wall portion 45. The side wall portion 42 is disposed so as to be perpendicular to the upper wall portion 41 and the bottom wall portion 44. A locking claw 46 that protrudes outward and engages with the locking hole 34 is formed on the side wall 42. The outer surface of the side wall portion 42 is covered with the side wall portion 32 of the outer shield case 30. The outer shield case 30 is fixed to the inner shield case 40 by engaging the engaging claws 46 with the engaging holes 34. The side wall portion 42 is provided with an insertion guide portion 49 that extends from the front end of the side wall portion 42 to the front oblique outer side.

  The side wall portion 43 is connected to the side wall portion 42 and includes an inclined surface that is inclined inwardly downward from a connection portion with the side wall portion 42. The side wall 43 is provided so as to be inclined at a predetermined angle with respect to the bottom wall 44.

  The bottom wall portion 44 is connected to the side wall portion 43 and is disposed to face the upper wall portion 41. At the center in the left-right direction of the bottom wall portion 44, a protruding portion 60 is formed that is bent upward and protrudes so as to narrow the interval between the insertion holes 50 in the vertical direction. The protrusion 60 protrudes so as to narrow the interval in the vertical direction of the insertion hole 50, thereby forming a fitting part 61 and a fitting part 62 adjacent to each other in the insertion hole 50, and a plurality of different left and right widths. The mating connector can be fitted into the insertion hole 50 from the front. An insertion guide portion 48 that extends obliquely forward from the front end of the bottom wall portion 44 is provided at a portion of the bottom wall portion 44 excluding the protruding portion 60.

  The side wall portion 45 is connected to the bottom wall portion 44 and the upper wall portion 41 and is disposed to face the side wall portion 42. The side wall portion 45 is disposed so as to be perpendicular to the upper wall portion 41 and the bottom wall portion 44. The side wall portion 45 is provided with an insertion guide portion 51 extending from the front end of the side wall portion 45 to the front oblique outer side.

  The insertion hole 50 is formed by being surrounded by the upper wall portion 41, the side wall portion 42, the side wall portion 43, the bottom wall portion 44, and the side wall portion 45. The insertion hole 50 opens the front to the outside and enables insertion of a mating connector (not shown) from the front. The fitting part 61 is formed by a part of the upper wall part 41, the side wall part 42, the side wall part 43, a part of the bottom wall part 44, and the protruding part 60, and the width W 1 ( The mating connector having a narrower width W2 (see FIG. 4) than that in FIG. 4) can be fitted. The insertion hole 50 constituted by the fitting part 61 and the fitting part 62 includes an upper wall part 41, a side wall part 42, a side wall part 43, a bottom wall part 44, a side wall part 45, and a protruding part 60. The mating connector having the same width W1 as the width W1 of the insertion hole 50 can be fitted.

  The protrusion 60 has an inclined surface 60a that is inclined at the same angle as the inclined surface of the side wall 43 with respect to the bottom wall 44, a vertical surface 60b that faces the side wall 45 and is perpendicular to the bottom wall 44, have. The inclined surface 60a of the protrusion 60 is provided with a movement restricting portion 70 that bulges into the insertion hole 50 from the inclined surface 60a. The inclined surface 60 a comes into contact with a mating connector having a width W2 fitted to the fitting portion 61 or a mating connector having a width W1 fitted to the fitting portion 61 and the fitting portion 62. The protruding portion 60 is provided with an insertion guide portion 52 extending obliquely forward from the front end of the protruding portion 60.

  The movement restricting portion 70 is parallel to the rear direction that is the fitting direction of the mating connector with respect to the insertion hole 50, faces the side wall portion 42, and is perpendicular to the bottom wall portion 44 or the upper wall portion 41. A vertical surface 71 is provided. The vertical surface 71 is provided over a predetermined length L along the front-rear direction (see FIG. 6). The movement restricting portion 70 has a skirt portion 72 that spreads toward the front end of the insertion hole 50 (see FIG. 6).

<Manufacturing method of electrical connector>
The manufacturing method of the electrical connector 1 according to the embodiment of the present invention will be described in detail below.

  First, after the metal plate is punched, the movement restricting portion 70 is formed by a drawing process in which a predetermined position of the punched metal plate is struck to bulge in one direction. At this time, the vertical surface 71 and the skirt portion 72 of the movement restricting portion 70 are formed. By forming the movement restricting portion 70 by striking and bulging it, the vertical surface 71 can be easily formed without causing burrs.

  By the way, when forming the vertical surface along the insertion direction of the mating connector when the movement restricting portion is cut and raised from the metal plate and cantilevered, there is a risk that burrs may occur at the end of the vertical surface. If there is a burr, the mating connector will be damaged. Further, when processing so as not to generate burrs, the processing of the shield case becomes troublesome. Therefore, when the movement restricting portion is cut and raised from the metal plate and cantilevered, it is difficult to form the vertical surface in order to facilitate the processing of the shield case.

  Next, by bending the metal plate on which the movement restricting portion 70 is formed, the metal plate is attached to the housing 10 prepared in advance, and the uneven shape at one end and the uneven shape at the other end in the bending direction are To be fixed to the housing 10 to form an inner shield case 40. At this time, the vertical surface 71 is bent so as to face the side wall portion 42 and to be perpendicular to the upper wall portion 41 and the bottom wall portion 44.

  Next, separately from the inner shield case 40, the outer shield case 30 is formed by punching a metal plate and performing a pressing process such as a bending process.

Next, the inner shield case 40 is covered with the outer shield case 30, and the engaging claw 46 is engaged with the engaging hole 34 to fix the outer shield case 30 to the inner shield case 40. Thereby, the electrical connector 1 is completed.

<Operation of electrical connector>
The operation of the electrical connector 1 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 7 and 8, the description of the conductive contact of the mating connector is omitted.

  First, the operation of the electrical connector 1 when a mating connector having the same width W1 as the lateral width W1 of the insertion hole 50 is connected to the electrical connector 1 will be described with reference to FIG. Here, the width of the mating connector refers to the width of the fitting portion of the mating connector inserted into the insertion hole 50.

  First, the insertion hole 50 of the electrical connector 1 and the mating connector B1 are roughly aligned, and the mating connector B1 is inserted into the insertion hole 50 from the front.

  The mating connector B1 is inserted into the insertion hole 50 while being guided by the insertion guide portion 47, the insertion guide portion 48, the insertion guide portion 49, the insertion guide portion 51, and the insertion guide portion 52. The mating connector B1 is inserted into the insertion hole 50 while being guided by the insertion guide portion 47, the insertion guide portion 48, the insertion guide portion 49, the insertion guide portion 51, and the insertion guide portion 52. The electrical connector 1 and the mating connector B1 can be easily connected simply by roughly aligning with the connector B1.

  Then, by further inserting the mating connector B1 into the insertion hole 50, the conductive contact (not shown) of the mating connector B1 and the connection portion 21 of the contact 20 supported by the contact support portion 12 and the contact support portion 13 Connect. Thereby, the connection between the electrical connector 1 and the mating connector B1 is completed.

  As shown in FIG. 7, the mating connector B1 includes an upper wall portion 41, a side wall portion 42, a side wall portion 43, a bottom wall portion 44, a side wall portion 45, a protruding portion 60, an inner shield case 40, Is held in the insertion hole 50.

  Next, the operation of the electrical connector 1 when a mating connector having a width W2 narrower than the lateral width W1 of the insertion hole 50 is connected to the electrical connector 1 will be described with reference to FIG.

  First, the fitting portion 61 of the insertion hole 50 of the electrical connector 1 and the mating connector B2 are roughly aligned, and the mating connector B2 is inserted into the fitting portion 61 from the front. At this time, since the mating connector B2 can be inserted into the fitting portion 61 using the protruding portion 60 as a mark, alignment can be easily performed.

  Next, the mating connector B2 is inserted into the fitting portion 61 while being guided by a part of the insertion guide part 47, a part of the insertion guide part 48, the insertion guide part 49, and the insertion guide part 52. Further, the mating connector B2 is inserted into the insertion hole 50 while being in contact with the skirt 72 of the movement restricting portion 70 and being guided by the skirt 72.

The mating connector B2 is inserted into the fitting portion 61 while being guided by a part of the insertion guide part 47, a part of the insertion guide part 48, the insertion guide part 49, and the insertion guide part 52. The electrical connector 1 and the mating connector B2 can be easily connected simply by performing rough positioning with the mating connector B2. Further, since the mating connector B2 is inserted into the fitting portion 61 while the right side surface in FIG. 8 is guided by the skirt portion 72 of the movement restricting portion 70, the mating connector B2 cannot be guided by the insertion guide portion 51. Even if it exists, the electrical connector 1 and the other party connector B2 can be easily connected only by roughly aligning the fitting part 61 and the other party connector B2.

  Next, when the mating connector B2 is further inserted into the fitting portion 61, the mating connector B2 rides on the vertical surface 71 from the skirt portion 72, whereby the side wall portion 42 and the vertical surface 71 are laterally moved. Is inserted into the insertion hole 50 in a state in which the movement of the is restricted.

  Next, the mating connector B2 is further inserted into the fitting portion 61 while being guided by the vertical surface 71 over the length L1 of the vertical surface 71. The mating connector B2 is inserted into the fitting portion 61 while being guided by the vertical surface 71 over the length L1 of the vertical surface 71, so that the mating connector B2 is squeezed in the left-right direction during the insertion. In this case, since the movement in the width direction is restricted by the vertical surface 71, the mating connector B2 is not inclined with respect to the insertion direction, and the mating connector B2 can be smoothly inserted into the fitting portion 61. .

  Next, when the mating connector B2 is further inserted into the fitting portion 61, the mating connector B2 is fitted into the fitting portion 61 and supported by the conductive contact (not shown) of the mating connector B2 and the contact support portion 12. The connection portion 21 of the contact 20 to be connected is connected. Thereby, the connection between the electrical connector 1 and the mating connector B2 is completed.

  As shown in FIG. 8, the mating connector B <b> 2 includes a part of the upper wall part 41, the side wall part 42, the side wall part 43, a part of the bottom wall part 44, and the projecting part 60. , Is held by. By providing the inclined surface 60a of the projecting portion 60, the connection strength against the operation of twisting the mating connector B2 is reduced. By restricting the connection strength, it is possible to improve the connection strength with respect to the operation of twisting the mating connector B2. At this time, even when a large load is applied to the movement restricting portion 70, by making the movement restricting portion 70 bulge into the insertion hole 50, plastic deformation of the movement restricting portion 70 can be prevented. A state in which the mating connector B2 cannot be inserted can be prevented, and damage to the shield case or the mating connector B2 can be prevented.

  According to the present embodiment, by including the movement restricting portion 70 that bulges from the inclined surface 60 a into the insertion hole 50 and restricts the movement in the width direction of the mating connector B <b> 2 that is narrower than the width of the insertion hole 50, The mating connector B2 can be securely held without rattling.

  Further, according to the present embodiment, by providing the movement restricting portion 70 in a portion that becomes a dead space when the mating connector B2 having a width smaller than the width in the left-right direction of the insertion hole 50 is inserted into the insertion hole 50, The movement of the mating connector in the width direction can be restricted without affecting the connection with the mating connector.

  In the present invention, the type, arrangement, number, and the like of the members are not limited to the above-described embodiments, and the constituent elements thereof are appropriately replaced with those having the same effects and the like, without departing from the spirit of the invention. Of course, it can be changed appropriately.

  For example, although the outer shield case 30 is provided in the present embodiment, the entire inner shield case 40 attached to the housing 10 may be exposed to the outside without providing the outer shield case 30.

  Further, although the protrusion 60 is provided on the bottom wall portion 44 of the inner shield case 40, a protrusion that protrudes downward is formed on the upper wall portion 41 of the inner shield case 40 so as to narrow the vertical interval of the insertion holes 50. It is also possible to provide a movement restricting portion on the projecting portion.

  The present invention is suitable for an electrical connector having a shield case.

DESCRIPTION OF SYMBOLS 1 Electrical connector 10 Housing 11 Front wall 12 Contact support part 13 Contact support part 20 Contact 21 Connection part 22 Terminal part 30 Outer shield case 31 Upper wall part 32 Side wall part 33 Leg part 34 Locking hole 40 Inner shield case 41 Upper wall part 42 Side wall part 43 Side wall part 44 Bottom wall part 44a Bottom wall part 44b Bottom wall part 45 Side wall part 46 Locking claw 47 Insertion guide part 48 Insertion guide part 49 Insertion guide part 50 Insertion hole 51 Insertion guide part 52 Insertion guide part 60 Projection Portion 60a Inclined surface 60b Vertical surface 61 Fitting portion 62 Fitting portion 70 Movement restricting portion 71 Vertical surface 72 Bottom portion

Claims (4)

An insulating housing;
A conductive contact fixed to the housing;
A shield case formed of a metal plate attached to the housing;
Have
The shield case is
An insertion hole in which a part of the contact is located and the front is opened to the outside, a first fitting portion and a second fitting that protrude so as to narrow the interval in the vertical direction of the insertion hole and are adjacent to each other in the insertion hole A projecting portion that allows a plurality of mating connectors with different left and right widths to be fitted to the insertion hole from the front by forming a fitting portion;
The protrusion is
An inclined surface that comes into contact with a mating connector having a narrower width than the left and right widths of the insertion hole that is fitted into the first fitting portion, and a width of the mating connector that bulges from the inclined surface and has a narrow width A movement restriction unit for restricting movement in the direction,
An electrical connector characterized by that. The movement restriction unit is
A vertical surface that is parallel to the fitting direction of the narrow mating connector with respect to the first fitting portion and perpendicular to the bottom wall portion or the top wall portion of the shield case;
The electrical connector according to claim 1. The vertical plane is
Having a predetermined length along the fitting direction,
The electrical connector according to claim 2. The movement restriction unit is
The hem is widened toward the front end of the insertion hole.
The electrical connector according to any one of claims 1 to 3, wherein:

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