JP5813339B2 - Electrical connector - Google Patents

Description

  The present invention relates to an electrical connector.

  As this type of technology, Patent Document 1 discloses a technology for attaching an electrical connector to printed wiring boards having different thicknesses without problems. That is, the electrical connector of Patent Document 1 includes a first outer shell 301 that houses the terminal holder 300, and a second outer shell 303 that has pin legs 302 for soldering the electrical connector itself to a printed wiring board. I have. The first outer shell 301 and the second outer shell 303 are configured separately. In use, the second outer shell 303 is fitted to the first outer shell 301 using the protrusion 304 of the second outer shell 303 and the recess 305 of the first outer shell 301. Thus, by configuring the first outer shell 301 and the second outer shell 303 as separate bodies, the length of the pin foot 302 can be selected each time according to the thickness of the printed wiring board. . If necessary, refer to claim 1 of Patent Document 1 which refers to a separate configuration.

Utility Model Registration No. 3117155

  By the way, with the recent development of the mobility of electronic devices, the number of connector insertions and removals has increased dramatically.

  Therefore, in the electrical connector disclosed in Patent Document 1 described above, loosening occurs between the protrusion 304 and the recess 305 while the mating connector is being inserted and removed, and as a result, the first outer shell 301 is in contact with the second outer shell 303. In some cases, rattling occurs in the insertion / removal direction.

  An object of the present invention is to provide a technique that makes it difficult to play back and forth even when a mating connector is repeatedly inserted and removed.

  According to a first aspect of the present invention, a contact, a housing holding the contact, a cylindrical inner shell having a mating connector insertion space into which the mating connector is inserted while covering the housing, An outer shell comprising: a top plate covering a part of the peripheral wall of the inner shell; and a holding leg formed extending in a direction away from the top plate so as to wrap the inner shell, An electrical connector that is mounted and used on the connector mounting board by inserting a holding leg into a holding hole of the connector mounting board, wherein the inner shell and the outer shell are integrally formed, and the outer shell The top plate of the shell is formed to be folded back approximately 180 degrees with respect to the peripheral wall of the inner shell, and the top plate of the outer shell is formed of the mating connector. Connected to the peripheral wall of the inner shell at the opening end of the peripheral wall of the inner shell to be inserted, the inner shell is a cylinder formed by bending a metal plate, and the seam of the inner shell Is provided so as to face the connector mounting board.
  According to a second aspect of the present invention, a contact, a housing holding the contact, a cylindrical inner shell having a mating connector insertion space into which the mating connector is inserted while covering the housing, An outer shell comprising: a top plate covering a part of the peripheral wall of the inner shell; and a holding leg formed extending in a direction away from the top plate so as to wrap the inner shell, An electrical connector that is mounted and used on the connector mounting board by inserting a holding leg into a holding hole of the connector mounting board, wherein the inner shell and the outer shell are integrally formed, and the outer shell The top plate of the shell is formed to be folded back approximately 180 degrees with respect to the peripheral wall of the inner shell, and the top plate of the outer shell is formed of the mating connector. Connected to the peripheral wall of the inner shell at the open end of the peripheral wall of the inner shell to be inserted, and the inner shell is a cylindrical body formed by bending a metal plate, An electrical connector is provided in which an end is formed with a retaining portion that is bent to prevent the housing from coming off.
  The outer shell has an overlapping portion overlapping from the outside with respect to the retaining portion of the inner shell.
  The outer shell has a plurality of holding legs, and the plurality of holding legs are formed apart from each other in a connector insertion direction, which is a direction in which the mating connector is inserted into the mating connector insertion space.
  The inner shell has a second holding leg soldered to the connector mounting board, and any one of the plurality of holding legs of the outer shell overlaps with the second holding leg of the inner shell. Yes.

  According to the present invention, even if the mating connector is repeatedly inserted and removed from the electrical connector, the inner shell does not rattle against the outer shell.

FIG. 1 is a perspective view showing a usage state of the electrical connector. (First embodiment) FIG. 2 is a perspective view of the electrical connector before use. (First embodiment) FIG. 3 is an exploded perspective view of the electrical connector. (First embodiment) FIG. 4 is an exploded perspective view seen from another angle of the electrical connector. (First embodiment) FIG. 5 is a perspective view showing a state in which the outer shell is expanded. (First embodiment) 6 is a cross-sectional view taken along line VI-VI in FIG. (First embodiment) FIG. 7 is a perspective view showing a state in which the outer shell is expanded. (Second Embodiment) 8 is a cross-sectional view taken along line VI-VI in FIG. (Third embodiment) FIG. 9 is a diagram corresponding to FIG.

(First embodiment)
Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. In the present specification, the electrical connector 1 is a receptacle connector for HDMI (High-Definition Multimedia Interface).

  As shown in FIGS. 1 to 6, the electrical connector 1 includes a plurality of contacts 2, a housing 3 that holds the plurality of contacts 2, and a shell 4. The shell 4 has an inner shell 5 and an outer shell 6. The inner shell 5 is formed in a cylindrical shape so as to cover the housing 3 and to have a mating connector insertion space 8 into which the mating connector 7 is inserted. The outer shell 6 includes a top plate 6a that covers a part of the peripheral wall 5a of the inner shell 5 and four first holding legs 6b (holding legs) that are formed to extend away from the top plate 6a so as to wrap the inner shell 5. ) And. The electrical connector 1 is used by being mounted on the connector mounting board 9 by inserting the four first holding legs 6b into the plurality of holding holes 10 of the connector mounting board 9, respectively. In the present embodiment, the inner shell 5 and the outer shell 6 are integrally formed. Hereinafter, each component of the electrical connector 1 will be described in detail.

(Connector insertion direction D)
As shown in FIG. 1, the direction in which the mating connector 7 is inserted into the mating connector insertion space 8 is defined as a connector insertion direction D.

(Connector mounting board 9)
As shown in FIG. 1, four holding holes 10 are formed in the connector mounting board 9. The two holding holes 10 out of the four holding holes 10 are arranged on the right side of the electrical connector 1 when viewed from the mating connector 7 before insertion, and are arranged along the connector insertion direction D. . Similarly, the remaining two holding holes (not shown) of the four holding holes 10 are arranged on the left side of the electric connector 1 when viewed from the mating connector 7 before insertion, and the connector is inserted. Lined up in direction D.

(Shell 4: Inner shell 5)
As shown in FIG. 1, the inner shell 5 is a slightly flat cylindrical body formed by bending a metal plate and fitting a convex portion 11 formed at one end into a concave portion 12 formed at the other end. is there. The seam 13 of the inner shell 5 is positioned so as to face the connector mounting board 9. The seam 13 extends substantially parallel to the connector insertion direction D.

  As shown in FIG. 5, the peripheral wall 5a of the inner shell 5 includes a top plate 5b, a pair of side plates 5c, and a bottom plate 5d.

  In order to hold the mating connector 7 with elastic force, two holding plates 14 formed in a cantilever shape are formed on the top plate 5b. No holes are formed in the side plate 5c and the bottom plate 5d so that flux or the like does not enter the inner shell 5 during soldering.

  Then, as shown in FIG. 1, the mating connector 7 is smoothly inserted into the mating connector insertion space 8 into the opening end 15 of the peripheral wall 5 a of the inner shell 5 where the mating connector 7 is inserted and removed. A plurality of guides g are formed. Further, as shown in FIGS. 4 and 5, a pair of second holding legs 17 is formed at the rear end 16 on the opposite side of the opening end 15 of the peripheral wall 5 a of the inner shell 5 in the connector insertion direction D. .

  As shown in FIG. 6, the rear end 16 of the top plate 5 b of the inner shell 5 is formed with a retaining portion 5 e that is bent to prevent the housing 3 from being detached from the shell 4.

(Shell 4: Outer shell 6)
As shown in FIGS. 5 and 6, the outer shell 6 includes a top plate 6a that covers the top plate 5b of the peripheral wall 5a of the inner shell 5, a pair of side plates 6c that covers a pair of side plates 5c of the peripheral wall 5a of the inner shell 5, And four first holding legs 6b. The top plate 6 a of the outer shell 6 is connected to the open end 15 of the top plate 5 b of the peripheral wall 5 a of the inner shell 5. As shown in FIG. 6, the top plate 6 a of the outer shell 6 is formed to be folded back approximately 180 degrees with respect to the top plate 5 b of the peripheral wall 5 a of the inner shell 5. Along with this folding, a folded portion R having a substantially semicircular cross section is formed at the opening end 15 of the top plate 5b of the peripheral wall 5a of the inner shell 5. Further, the top plate 6 a of the outer shell 6 is formed with a relief hole 6 d for allowing elastic deformation of the holding plate 14. As shown in FIG. 1, each side plate 6 c is connected to the top plate 6 a and is orthogonal to the top plate 6 a. Two first holding legs 6b are connected to one side plate 6c. The two first holding legs 6b connected to one side plate 6c are formed slightly apart in the connector insertion direction D. As shown in FIG. 1, each first holding leg 6 b extends in a direction orthogonal to the connector mounting surface 9 a of the connector mounting board 9 and is inserted into each holding hole 10 of the connector mounting board 9.

  In the state shown in FIG. 1, the outer shell 6 covers the inner shell 5. The inner shell 5 is sandwiched between the outer shell 6 and the connector mounting board 9 and is surrounded by the outer shell 6 and the connector mounting board 9.

(how to use)
Next, a method for using the electrical connector 1 will be described. First, each first holding leg 6b of the outer shell 6 shown in FIG. 2 is inserted into each holding hole 10 of the connector mounting board 9 as shown in FIG. Next, the first holding legs 6 b of the outer shell 6 of the shell 4 of the electrical connector 1 are soldered to the holding holes 10 of the connector mounting board 9, respectively. Also, the bottom plate 5d of the inner shell 5 of the electrical connector 1 shown in FIG. 4 is soldered to a first soldering pad (not shown) formed on the connector mounting surface 9a of the connector mounting board 9 shown in FIG. Further, the second holding leg 17 of the inner shell 5 of the electrical connector 1 shown in FIG. 4 is soldered to a second soldering pad (not shown) mounted on the connector mounting surface 9a of the connector mounting board 9 shown in FIG. Thus, the electrical connector 1 is firmly fixed to the connector mounting board 9.

  The preferred first embodiment of the present invention has been described above. In short, the first embodiment has the following features.

(1) The electrical connector 1 has a cylindrical shape having a plurality of contacts 2, a housing 3 holding the plurality of contacts 2, and a mating connector insertion space 8 into which the mating connector 7 is inserted while covering the housing 3. The inner shell 5, the top plate 6a covering the top plate 5b (part) of the peripheral wall 5a of the inner shell 5, and a plurality of first holding members formed extending in a direction away from the top plate 6a so as to wrap the inner shell 5 And an outer shell 6 including a leg 6b. The electrical connector 1 is used by being mounted on the connector mounting board 9 by inserting the plurality of first holding legs 6 b into the plurality of holding holes 10 of the connector mounting board 9. The inner shell 5 and the outer shell 6 are integrally formed. According to the above configuration, even when the mating connector 7 is repeatedly inserted into and removed from the electrical connector 1, the inner shell 5 does not rattle against the outer shell 6.

  Here, Patent Document 1 will be referred to. The basis of the technique of Patent Document 1 is a part that the second outer shell having pin legs is formed separately from the first outer shell in order to attach the electrical connector to the printed wiring boards having different thicknesses without any problem. . Therefore, if the 1st outer shell and the 2nd outer shell are integrated in the technique of patent document 1, it should be noted that the technique of patent document 1 collapses from the root.

(2) The top plate 6 a of the outer shell 6 is formed by being folded back approximately 180 degrees with respect to the peripheral wall 5 a of the inner shell 5. According to the above configuration, the top plate 6a of the outer shell 6 can be formed at low cost by bending.

(3) The top plate 6 a of the outer shell 6 is connected to the peripheral wall 5 a of the inner shell 5 at the opening end 15 of the peripheral wall 5 a of the inner shell 5 where the mating connector 7 is inserted and removed. According to the above configuration, the folded portion R having a substantially semicircular cross section is formed at the opening end 15 of the peripheral wall 5a of the inner shell 5 where the mating connector 7 is inserted and removed. The folded portion R exhibits a function as a guide when the mating connector 7 is inserted into the mating connector insertion space 8 of the inner shell 5.

  In the present embodiment, the holding plate 14 is formed not on the outer shell 6 but on the inner shell 5 as shown in FIG. Therefore, as shown in FIG. 2, a large suction area without a break can be secured on the top plate 6 a of the outer shell 6. This adsorption area is an area used when the electrical connector 1 is picked up by a suction force.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. Here, the present embodiment will be described with a focus on differences from the first embodiment, and overlapping descriptions will be omitted as appropriate. In addition, in principle, the same reference numerals are assigned to components corresponding to the respective components of the first embodiment.

  In the first embodiment, the top plate 6a of the outer shell 6 is connected to the peripheral wall 5a of the inner shell 5 at the open end 15 of the top plate 5b of the peripheral wall 5a of the inner shell 5, as shown in FIG. . However, instead of this, in the present embodiment, the top plate 6a of the outer shell 6 has a peripheral wall 5a of the inner shell 5 at the rear end 16 of the top plate 5b of the peripheral wall 5a of the inner shell 5, as shown in FIG. Connected to.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. Here, the present embodiment will be described with a focus on differences from the first embodiment, and overlapping descriptions will be omitted as appropriate. In addition, in principle, the same reference numerals are assigned to components corresponding to the respective components of the first embodiment.

  In the present embodiment, the outer shell 6 has an overlapping portion 6e as shown in FIG. The overlapping portion 6e is connected to the top plate 6a and partially overlaps from the outside with respect to the retaining portion 5e. According to the above overlapping part 6e, the retaining effect by the retaining part 5e is enhanced.

1 electrical connector 2 multiple contacts 3 housing 4 shell 5 inner shell 5a peripheral wall 5b top plate 5c side plate 5d bottom plate 5e retaining portion 6 outer shell 6a top plate 6b first holding leg 6c side plate 6d escape hole 6e overlapping portion 7 mating connector 8 Connector insertion space 9 Connector mounting board 9a Connector mounting surface 10 Holding hole 11 Convex part 12 Concave part 13 Seam 14 Holding plate 15 Open end 16 Rear end 17 Second holding leg
D Connector insertion direction
R Folding part g Guide

Claims (4)

Contacts,
A housing holding the contact;
A cylindrical inner shell having a mating connector insertion space into which the mating connector is inserted while covering the housing;
An outer shell comprising: a top plate that covers a part of the peripheral wall of the inner shell; and a holding leg that extends in a direction away from the top plate so as to wrap the inner shell.
With
By inserting the holding leg into the holding hole of the connector mounting board, an electrical connector used by being mounted on the connector mounting board,
The inner shell and the outer shell are integrally formed,
The top plate of the outer shell is formed by being folded back approximately 180 degrees with respect to the peripheral wall of the inner shell,
The top plate of the outer shell is connected to the peripheral wall of the inner shell at the open end of the peripheral wall of the inner shell where the mating connector is inserted and removed.
The inner shell is a cylinder formed by bending a metal plate,
The rear end of the inner shell is formed with a retaining portion that is bent to prevent the housing from being detached,
Electrical connector. The electrical connector according to claim 1 ,
The outer shell has an overlapping portion that overlaps from the outside with respect to the retaining portion of the inner shell.
Electrical connector. The electrical connector according to claim 1 or 2 ,
The outer shell has a plurality of the holding legs,
The plurality of holding legs are formed away from each other in a connector insertion direction, which is a direction in which the counterpart connector is inserted into the counterpart connector insertion space.
Electrical connector. The electrical connector according to claim 3 ,
The inner shell has a second holding leg soldered to the connector mounting board,
Any of the plurality of holding legs of the outer shell overlaps with the second holding legs of the inner shell,
Electrical connector.

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