JP4738444B2 - connector - Google Patents

Description

  The present invention relates to a connector for connecting a cable to a counterpart connector.

  As a connector for connecting a cable including a shielded wire (drain wire) to a substrate via a mating connector, there is one disclosed in Patent Document 1, for example.

Japanese Patent No. 3824269

  In recent years, with the increase in frequency of signals, the importance of EMI countermeasures has also increased. As a measure against EMI in the connector, the shield of the connector by the shell can be strengthened by connecting the shield wire of the cable to the ground plane of the board through the shell of the connector and the shell of the counterpart connector.

  From this point of view, when the shell of the connector is composed of two members, a front shell and a rear shell, as in Patent Document 1, it is necessary that both be securely connected. However, in the case of the connector described in Patent Document 1, contact may not be achieved depending on the fitting state of the front shell and the rear shell. In the connector of Patent Document 1, as a means for ensuring the connection between the front shell and the rear shell, it is conceivable to solder between the two. There is also a problem that increases.

  Accordingly, an object of the present invention is to provide a connector in which a front shell and a rear shell are securely connected without increasing the number of steps such as soldering.

According to the present invention, as the first connector,
The rear shell,
A connector is obtained which is a front shell combined with the rear shell and includes a front shell having a rear shell fixing portion for fixing the rear shell and a rear shell connecting portion connected to the rear shell.

According to the present invention, as the second connector, in the first connector,
The front shell includes a spring piece,
The rear shell fixing portion and the rear shell connecting portion are integrally formed on the spring piece,
The rear shell is formed with an opening,
When the rear shell fixing portion is engaged with the opening, a connector is obtained in which the rear shell is fixed to the front shell.

According to the present invention, as the third connector, in the second connector,
The front shell has a positioning portion that performs relative positioning of the rear shell with respect to the front shell when combined with the rear shell;
The rear shell connecting portion is located between the positioning portion and the rear shell fixing portion, and a connector that establishes the connection by contacting the inner surface of the rear shell is obtained.

According to the present invention, as the fourth connector, in the second or third connector,
A contact and a housing for holding the contact;
The housing is covered by at least the front shell;
The housing is provided with a fixing portion,
A connector is obtained in which the front shell is provided with a fixing piece for fixing the relative position between the front shell and the housing together with the fixing portion.

According to the present invention, as the fifth connector, in the fourth connector,
The connector is to be mated with the counterpart connector in the first direction,
The front shell includes two spring pieces and two fixed pieces,
The two spring pieces are provided on the front shell so as to face each other in a second direction orthogonal to the first direction,
A connector provided on the front shell is obtained so that the two fixing pieces face each other in a third direction orthogonal to both the first direction and the second direction.

According to the present invention, as the sixth connector, in the fifth connector,
The housing has two of the fixing portions,
The two fixing portions protrude outward in the third direction,
Each of the fixed pieces has an accommodating portion penetrating in the third direction,
The fixing portions are accommodated in the accommodating portions of the fixing pieces, respectively, thereby obtaining a connector in which the front shell is fixed to the housing.

  In the case of Patent Document 1, there is a case where the rear shell and the front shell are connected by the rear shell fixing portion (lance), but the main purpose is the fixing of the rear shell and the front shell, and thus the connection between the two may not be achieved. There was also. On the other hand, in the present invention, the rear shell connecting portion is provided in the front shell as a part different from the rear shell fixing portion, and the fixing of the rear shell to the front shell and the connection between the rear shell and the front shell are functionally separated. The rear shell and the front shell can be securely connected.

  In particular, if the rear shell connecting part is also provided on the spring piece on which the rear shell fixing part is formed, the spring force of the spring piece used for fixing the rear shell and the front shell can be used, so the connector is enlarged. Therefore, the connection between the front shell and the rear shell can be reliably achieved.

  Furthermore, if a rear shell positioning part is provided in the front shell and the rear shell connection part is positioned between the positioning part and the rear shell fixing part, the connection of the rear shell connection part to the rear shell is made more reliable. Can do.

  As shown in FIGS. 1 to 3, the connector 100 according to the embodiment of the present invention is a board that fits with a counterpart connector (not shown) in the Y direction (first direction) and is connected to the counterpart connector. A cable 200 is connected to a cable (not shown), and is combined with a plurality of contacts 10, a housing 20 made of an insulating member that holds the contacts 10, a rear shell 30, and a rear shell 30. And a front shell 40 for covering.

  As shown in FIG. 2, the housing 20 in the present embodiment has two fixing portions 21 that protrude outward in the X direction (third direction). The fixing portion 21 in the present embodiment is located at the rear end portion of the housing 20. The fixed portion 21 has a substantially square shape when viewed from the X direction, and has a substantially pentagonal shape with one corner of the rectangle beveled when viewed from the Z direction (second direction). is doing. In each fixing portion 21, the substantially pentagonal bevel portion is located on the front side when viewed from the Z direction.

  As shown in FIG. 2, openings 31 are formed in the upper and lower portions of the rear shell 30. Each opening 31 has a rectangular shape when viewed from the Z direction, and is formed at a position closer to the rear end 33 than to the front end 32. As understood from FIGS. 1 and 3, the rear end portion 33 of the rear shell 30 is connected to the shield portion 202 of the cable 200, and shields the rear end of the contact 10 held by the housing 20 from the outside. Yes.

  As shown in FIGS. 2 and 5 to 7, the front shell 40 includes two spring pieces 41 having a free end on the rear side. In particular, as shown in FIGS. 6 and 7, the spring pieces 41 are provided so as to face each other in the Z direction, and are bent in a zigzag shape so as to have two vertices protruding outward in the Z direction. It has been. Of the two vertices of each spring piece 41, the one located on the rear side is engaged with the opening 31 of the rear shell 30 to bring the rear shell 30 to the front shell 40 as shown in FIGS. 1 and 3. The rear shell connecting portion 42 functions as a rear shell fixing portion 42 to be fixed, and the front apex is in contact with the inner surface 34 of the rear shell 30 to electrically connect the rear shell 30 and the front shell 40 as shown in FIG. 43 functions. As shown in FIGS. 3, 6, and 7, in the present embodiment, the rear shell fixing portion 42 projects outward from the rear shell connecting portion 43 in the Z direction.

  As shown in FIGS. 1 to 3, the front shell 40 is further provided with a positioning portion 44 for positioning the rear shell 30 and a fixing piece 45 fixed to the fixing portion 21 of the housing 20. . More specifically, the front shell 40 according to the present embodiment is provided with two positioning portions 44 and two fixing pieces 45 each.

  As shown in FIGS. 3, 4, 6 and 7, the positioning portions 44 are provided so as to face each other in the Z direction, as can be understood from FIGS. 2, 3, and 5, respectively. , As viewed from the Z direction, after making a U-shaped cut, the inner part of the cut is bent so as to rise outward in the Z direction. As shown in FIGS. 1 and 3, each positioning portion 44 is in contact with the front end portion 32 of the rear shell 30 to determine the relative position of the rear shell 30 with respect to the front shell 40. In the present embodiment, the positioning portion 44 positions the rear shell 30 with respect to the front shell 40, and the rear shell 30 thus positioned is fixed to the front shell 40 by the rear shell fixing portion 42. Assembly to the front shell 40 can be performed easily. In addition, since the rear shell connection portion 43 is provided between the positioning portion 44 and the rear shell fixing portion 42, the rear shell connection portion 43 is formed on the inner surface 34 of the rear shell 30 without performing a secondary process such as soldering. It can be reliably contacted.

  2 and 5, the fixing pieces 45 are provided so as to face each other in the X direction. As shown in FIGS. 6 and 7, respectively, the fixed pieces 45 are substantially W when viewed from the X direction. It has a letter-shaped outer shape. Specifically, as shown in FIG. 7, the left fixed piece 45 is configured by arranging a J-shaped portion on a line target so as to have a substantially W-shaped outer shape. As shown in FIGS. 6 and 7, the substantially W-shaped fixed piece 45 extends rearward from the side portion of the front shell 40, and the center portion 45 a of the fixed piece 45 faces forward. An accommodation portion 46 that penetrates the fixed piece 45 in the X direction is formed in front of the central portion 45a of the fixed piece 45. In the housing portion 46, the fixing portion 21 of the housing 20 is located. With this arrangement, the central portion 45a of the fixed piece 45 abuts against the rear end of the fixed portion 21 and restricts the movement of the fixed portion 21, thereby fixing the relative position of the housing 20 with respect to the front shell 40. The fixed portion 21 and the central portion 45a of the fixed piece 45 do not necessarily have to be in contact with each other, and some play may be provided between them.

  The embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications and applications are possible. For example, as shown in FIG. 8, the rear shell may be composed of two members, a rear shell upper part 30a and a rear shell lower part 30b.

  In the embodiment described above, the spring pieces 41 are provided above and below the front shell 40, but may be provided on the left and right.

  Furthermore, in the above-described embodiment, the pair of rear shell fixing portions 42 and the rear shell connecting portion 43 are formed on one spring piece 41. However, they may not be formed on the spring piece 41. The rear shell fixing portion 42 may be formed on the spring piece 41 while the rear shell connection portion 43 may be formed as a convex portion (abutted against the inner surface 34 of the rear shell 30) provided separately from the spring piece 41. .

It is a perspective view which shows the connector by embodiment of this invention. It is a disassembled perspective view which shows the connector of FIG. It is sectional drawing which shows the cross section along the III-III line of the connector of FIG. It is a front view which shows the structure which consists of a front shell, a housing, and a contact of the connector of FIG. It is a top view which shows the structure of FIG. It is a right view which shows the structure of FIG. It is a left view which shows the structure of FIG. It is a disassembled perspective view which shows the modification of the connector of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Contact 20 Housing 21 Fixing part 30 Rear shell 30a Rear shell upper part 30b Rear shell lower part 31 Opening part 32 Front end part 33 Rear end part 34 Inner surface 40 Front shell 41 Spring piece 42 Rear shell fixing part 43 Rear shell connection part 44 Positioning part 45 Fixing piece 45a Center part 46 Housing part 100 Connector 200 Cable 202 Shield part

Claims (6)

The rear shell,
A front shell combined with the rear shell, the rear shell fixing part for fixing the rear shell, and a connector having a front shell having a rear shell connection part for connecting to the rear shell ,
The front shell includes a spring piece,
The rear shell fixing portion and the rear shell connecting portion are integrally formed on the spring piece,
The rear shell is formed with an opening,
The rear shell is fixed to the front shell by engaging the rear shell fixing portion with the opening.
connector. The connector according to claim 1 , wherein
The front shell has a positioning portion that performs relative positioning of the rear shell with respect to the front shell when combined with the rear shell;
The rear shell connecting portion is located between the positioning portion and the rear shell fixing portion, and is a connector that establishes the connection by contacting the inner surface of the rear shell. The connector according to claim 1 or claim 2,
The connector is to be mated with the counterpart connector in the first direction,
The spring piece has a free end and is formed to be zigzag bent so as to have two vertices protruding outward in a second direction orthogonal to the first direction,
  Of the two vertices of the spring piece, a vertex close to the free end functions as the rear shell fixing portion, while a vertex far from the free end functions as the rear shell connecting portion.
connector. The connector according to any one of claims 1 to 3 ,
A contact and a housing for holding the contact;
The housing is covered by at least the front shell;
The housing is provided with a fixing portion,
The front shell is provided with a fixing piece for fixing a relative position between the front shell and the housing together with the fixing portion. The connector according to claim 4, wherein
The connector is to be mated with the counterpart connector in the first direction,
The front shell includes two spring pieces and two fixed pieces,
The two spring pieces are provided on the front shell so as to face each other in a second direction orthogonal to the first direction,
The two fixing pieces are connectors provided on the front shell so as to face each other in a third direction orthogonal to both the first direction and the second direction. The connector according to claim 5, wherein
The housing has two of the fixing portions,
The two fixing portions protrude outward in the third direction,
Each of the fixed pieces has an accommodating portion penetrating in the third direction,
Each of the fixing portions is accommodated in the accommodating portion of the fixing piece, whereby the front shell is fixed to the housing.

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