JP5748334B2 - Connectors and connector units - Google Patents

Description

  The present invention relates to a connector and a connector unit.

  Conventionally, a board connector (board-to-board connector) has been used as a connector for connecting the surfaces of boards.

  As a receptacle connector, the board connector is provided with a groove in which the plug-side connector is inserted on the upper surface of the plate-shaped housing, and contacts are arranged in the groove, and the side wall is provided with a shell for reinforcing the connector and electromagnetically shielding the contact. In some cases, a structure having a surrounding structure is used.

  Here, as a structure of the shell for reinforcing the connector, there is a structure in which a U-shaped shell 81b is press-fitted into both ends in the longitudinal direction of the housing 81a as in the connector 81 shown in FIG. 16 (Patent Document 1).

  On the other hand, in the structure of Patent Document 1, the end portion of the contact connected to the substrate side is exposed from the side wall in the longitudinal direction of the housing 81a, and electromagnetic shielding of this portion is insufficient. There is a risk of signals flowing through the contacts.

  Therefore, like the connector 83 shown in FIG. 17, a structure in which a U-shaped shell 83b surrounding the end of the contact 83c connected to the substrate side is provided around the housing 83a (Patent Document 2), As in the connector 85 shown in FIG. 18, there is a structure in which a pair of L-shaped shells 85b are provided so as to surround the housing 85a (Patent Document 3).

  However, in the structures of Patent Document 2 and Patent Document 3, since the shell is not connected in the short side direction of the housing, when the mating connector is inserted, the housing is bent in the short side direction. The structure for reinforcing the housing is insufficient.

  Therefore, like the shell 87 shown in FIG. 19, the center 87a of the plate material is punched out, and the four sides (sides 87b, 87c, 87d, 87e) are bent into a box shape to surround the entire circumference of the housing with one component. A structure is known in which the housing is reinforced and electromagnetic shielding is achieved (Patent Document 4).

JP 2011-60650 A JP 2008-146870 A JP-A-10-208816 JP 2006-202645 A

  However, in the structure as in Patent Document 4, although the entire circumference of the housing is surrounded by a single component, slits must be provided at each of the four corners in order to bend the four sides, and electromagnetic shielding at the four slits is prevented. There was a problem of becoming insufficient.

  Furthermore, in the structure as disclosed in Patent Document 4, the shell is formed by insert molding, or the shell is formed by punching the center of the plate material, and the material of the punched part is wasted. There was a problem of being bad.

  As described above, the conventional board connector has a trade-off relationship between strength, electromagnetic shielding, and production cost, and there is no structure that can satisfy all of them.

  This invention is made | formed in view of the said problem, The subject is providing the connector which can satisfy all of intensity | strength, electromagnetic shielding, and production cost.

  In order to solve the above-mentioned problem, according to the first aspect of the present invention, a pair of first side walls facing each other and a pair of second side walls facing each other by connecting the ends of the pair of first side walls. And a contact held by the housing in a pitch direction along the first side wall, and held by at least one of the first side wall and the second side wall of the housing. A pair of shells, wherein the pair of shells is connected to the connection main body portion disposed along the second side wall portion, and is connected to one end portion of the connection main body portion. A short-side main body disposed along the first portion, and a long-side main body disposed continuously along the other first side wall from the other end of the coupling main-body, In the contact pitch direction, the length of the short-side main body is the length. Connector, characterized in that less than the length of the main body portion can be obtained.

  The short side main body portion has a short side locking portion that engages with one of the first side wall portions, and the long side main body portion is an end portion that engages with the other first side wall portion. It is desirable to have a locking portion at the end.

  Further, the short side locking portion is provided between the contact closest to the connection main body portion and the connection main body portion, and the end locking portion is more than the contact farthest from the connection main body portion. It is desirable to be provided at a position far from the connection main body.

  Furthermore, it is desirable that the long side main body portion has a long side locking portion formed at a position facing the short side locking portion.

  On the other hand, it is desirable that the connection main body portion has a shell-side ground portion that is connected to the ground terminal of the mating connector.

  Moreover, it is desirable that each of the pair of shells has the same shape.

  Further, the housing has a plate-like shape having a rectangular planar shape, the first side wall portion corresponds to the long side of the rectangle, and the second side wall portion corresponds to the short side of the rectangle. desirable. In this case, the housing is provided on the rectangular surface along the long side, and has a pair of grooves into which the mating connector is inserted, and the contacts are respectively disposed in the pair of grooves, A U-shaped U-shaped contact portion that comes into contact with the contact of the mating connector sandwiched therebetween, and an end extending from one end portion of the U-shaped contact portion to the first side wall portion side are provided. It is desirable to have an external connection.

  On the other hand, according to the second aspect of the present invention, the ground terminal includes the connector and a mating connector that fits into the connector, and the mating connector contacts the shell-side ground portion of the connector. A connector unit characterized by having:

  According to the present invention, a connector capable of satisfying all of strength, electromagnetic shielding, and production cost can be provided.

1 is a perspective view showing a connector unit 100 according to a first embodiment. It is 2-2 sectional drawing of FIG. 1 is a perspective view showing a connector 1. FIG. FIG. 4 is a plan view of FIG. 3. FIG. 6 is a perspective view showing a housing 5. FIG. 6 is a plan view of FIG. 5. It is a perspective view which shows the contact 3a. FIG. 8 is a side view of FIG. 7. It is a perspective view which shows the shell 7a. FIG. 10 is a plan view of FIG. 9. It is a top view which shows the case where only shell 7a, 7b is illustrated in FIG. It is sectional drawing which shows the state which combined the connector 1 and the other party connector 3 from the state of FIG. It is 13-13 sectional drawing of FIG. 1, Comprising: It is a figure which shows the state which combined the connector 1 and the other party connector 3 from the state of FIG. It is a perspective view which shows the shell 7c which concerns on 2nd Embodiment. FIG. 15 is a plan view of FIG. 14. It is a disassembled perspective view of the connector 81 of a prior art. It is a perspective view of the connector 83 of a prior art. It is a disassembled perspective view of the connector 85 of a prior art. It is a perspective view which shows the shell 87 of a prior art.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments suitable for the invention will be described in detail with reference to the drawings.

  First, with reference to FIGS. 1-4, the outline of each connector which comprises the connector unit 100 which concerns on this embodiment, and the connector unit 100 is demonstrated.

  Here, as the connector unit 100, a combination of a receptacle connector of a board connector and a plug connector is illustrated.

  As shown in FIGS. 1 and 2, a connector unit 100 includes a connector 1 that is a receptacle connector connected to a board (not shown) and a plug connector that is connected to another board (not shown) and fitted to the connector 1. The other party connector 3 is provided.

  As shown in FIGS. 1 to 4, the connector 1 surrounds a thick plate-like housing 5 having a rectangular planar shape, contacts 3 a and 3 b held by the housing 5, and the housing 5 and the contacts 3 a and 3 b. It has a pair of shells 7a and 7b provided on the side wall of the housing 5 and grounded to a substrate (not shown).

  As shown in FIGS. 1 and 2, the mating connector 3 includes a long plate-shaped main body 9, a pair of long plate-shaped mating fitting portions 15 a and 15 b that protrude in parallel from the lower surface of the main body 9, and a mating connector. Provided at a predetermined pitch in the longitudinal direction of the side fitting portions 15a and 15b, and connected to the contacts 3a and 3b of the connector 1 at both ends of the plurality of counterpart contacts 11a and 11b and the counterpart fitting portions 15a and 15b. The ground terminals 12a and 12b for grounding are provided and connected to the shells 7a and 7b.

  Next, the structure of each member constituting the connector 1 will be described in more detail.

  First, the structure of the housing 5 will be described with reference to FIGS. 5 and 6.

  As shown in FIG. 5, the housing 5 has a longitudinal direction in the pitch direction of the contacts 3a, 3b, and each of the pair of first side wall portions 5a, 5b and the pair of first side wall portions 5a, 5b facing each other. It has a pair of 2nd side wall parts 5c and 5d which connect between edge parts and oppose. In FIG. 5, the first side wall portions 5a and 5b are portions corresponding to the long sides of the rectangle, and the second side wall portions 5c and 5d are portions corresponding to the short sides of the rectangle.

  As shown in FIG. 6, groove portions 33 a and 33 b into which the mating mating portions 15 a and 15 b of the mating connector 3 are inserted are provided on the upper surface of the housing 5 along the long sides of the rectangle. Contact insertion holes 37a and 37b into which the contacts 3a and 3b are inserted are provided at a predetermined pitch in the longitudinal direction so as to straddle 33a and 33b.

  The end portions of the groove portions 33a and 33b are connected by connecting grooves 35a and 35b provided along the short sides of the rectangle, and the planar shape as a whole is a "mouth" shape, and the central portion is a block shape. A convex portion 17 is formed.

  Further, corner frames 39a, 39b, 43a, 43b for holding the shells 7a, 7b are provided at portions corresponding to the four corners of the rectangle of the housing 5, and the longitudinal direction of the rectangle, that is, the first Side frames 41a and 41b for holding the shells 7a and 7b are also provided at positions corresponding to the contacts 3a and 3b of the side walls 5a and 5b, respectively.

  The gap between the corner frame 39a and the side frame 41a forms a press-fit portion 47a, and the gap between the side frame 41a and the corner frame 43a forms a press-fit portion 49a.

  Similarly, the gap between the corner frame 43b and the side frame 41b forms a press-fit portion 49b, and the gap between the side frame 41b and the corner frame 39b forms a press-fit portion 47b.

  An insertion portion 45a is provided between the corner frames 43a and 43b, and an insertion portion 45b is provided between the corner frames 39a and 39b.

  The press-fit portions 47a, 49a, 47b, 49b and the insertion portions 45a, 45b are portions that engage with the shells 7a, 7b when the shells 7a, 7b are fixed to the housing 5, and will be described in detail later.

  Further, part of the insertion portions 45a and 45b form notches 51a and 51b whose inner sides are notched, and in a state where the shells 7a and 7b are assembled, a shell-side grounding portion of the shells 7a and 7b described later. 61 is arranged.

  Next, the structure of the contact 3a will be described with reference to FIGS. Since the structure of the contact 3b is the same as that of the contact 3a, description thereof is omitted.

  As shown in FIGS. 7 and 8, the contact 3 a is disposed in the groove portions 33 a and 33 b of the housing 5, and contacts with the mating contacts 11 a and 11 b of the mating connector 3. 41 and an L-shaped external connection portion 43 provided so as to extend from one end portion of the U-shaped contact portion 41 to the first side wall portion 5a side.

  Next, the structure of the shells 7a and 7b will be described with reference to FIGS. In the first embodiment, since the shape of the shell 7b is the same as the shape of the shell 7a, the structure of the shell 7a will be mainly described here.

  As shown in FIGS. 9 to 11, the shell 7 a is connected to the plate-like connecting main body 51 arranged along the second side wall 5 c and one end of the connecting main body 51. A plate-like short-side main body portion 55 arranged along the first side wall portion 5b and a plate-like shape arranged continuously from the other end portion of the connecting main body portion 51 and arranged along the other first side wall portion 5a. The long side main body portion 53 has a “J” -shaped planar shape in which the length 65 of the short side main body portion 55 is shorter than the length 63 of the long side main body portion 53 in the pitch direction of the contacts 3a and 3b. Have.

  Further, the connecting main body 51 has a bent portion 57, and protrudes from the bent portion 57 toward the inside of the shell 7a (the side where the short-side main body portion 55 and the long-side main body portion 53 are connected). In addition, a grounding shell side grounding portion 61 that contacts the grounding terminal 12a of the mating connector 3 is provided.

  On the other hand, at the end of the short side main body 55 opposite to the connection main body 51, a plate-like short for engaging and fixing the shell 7a to the housing 5 and connecting to a ground terminal of a substrate (not shown). A side locking portion 55a is provided so as to protrude downward.

  Similarly, a plate-like end locking portion 53a for connection to a ground terminal of a substrate (not shown) is provided at the end of the long side main body 53 opposite to the connection main body 51, Further, long side locking portions 53b and 53c are also provided in the vicinity of the connection portion with the connection main body portion 51 so as to protrude downward. The long side locking portion 53b is used for engaging and fixing the shell 7a to the housing 5, and the long side locking portion 53c is used for connection to a ground terminal of a substrate (not shown). You may use 53b for the connection with the ground terminal of the board | substrate which is not illustrated. Further, a locking projection (not shown) may be provided on the end locking portion 53a so that the shell 7a can be used for engaging and fixing to the housing 5. Furthermore, although the long side locking part 53b and the long side locking part 53c are formed through a gap, the long side locking part 53b and the long side locking part 53c are integrally formed without providing a gap. May be.

  The length 63 of the long-side main body 53 is such that it completely surrounds the contacts 3a in the pitch direction, specifically, at the end portions on the second side wall 5c and the second side wall 5d side. The length corresponds to the length between the contacts 3a.

  On the other hand, the length 65 of the short-side main body portion 55 is a length corresponding to the length between the second side wall portion 5c and the contact 3b at the extreme end on the second side wall portion 5c side.

  Further, the short side locking portion 55 a is provided between the contact 3 b closest to the connection main body portion 51 and the connection main body portion 51, and the end portion locking portion 53 a is more than the contact 3 a farthest from the connection main body portion 51. Is also provided at a position far from the connection main body 51.

  Thus, by making the shape of the shells 7a and 7b have a “J” -shaped planar shape, for example, as shown in FIG. 4, the shells 7a and 7b (long-side main body portion 53) are connected to the contacts 3a. 3b is arranged so as to oppose 3b, so that electromagnetic shielding can be reliably performed.

  Further, as shown in FIG. 11, in the state where the shell 7a and the shell 7b are combined, there are only two gaps, so that the reduction of the electromagnetic shielding effect caused by the gap generated by dividing the shell is minimized. Can be suppressed.

  Moreover, since the shell is connected in the short side direction of the housing 5 by making the shape of the shells 7 a and 7 b into a “J” -shaped planar shape, the housing when the mating connector 3 is inserted. Reinforcing effect can be exerted against twisting in the short side direction.

  Furthermore, since the shells 7a and 7b have a “J” -shaped planar shape, the shells 7a and 7b can be manufactured by bending a plate material. Compared to the case of manufacturing the shell by punching, the production cost can be reduced because less material is wasted during the manufacturing.

  That is, the shells 7a and 7b have a structure that can satisfy all of the electromagnetic shielding effect, the reinforcing effect, and the production cost.

  The long side locking portion 53b and the short side locking portion 55a have the same shape at positions facing each other, and the end locking portion 53a and the long side locking portion 53c have the same shape. As shown in FIG. 11, when the shell 7a and the shell 7b are combined, the end locking portion 53a of the shell 7a and the long side locking portion 53c of the shell 7b face each other. ing.

  The positional relationship between the press-fit portions 47a, 49a, 47b, and 49b is 180 ° rotationally symmetric.

  With such an arrangement, when the shells 7a and 7b and the housing 5 are combined, they can be attached at any rotational position.

In addition, with this arrangement, if the arrangement of the ground terminal on the board (not shown) is 180 ° rotationally symmetric, it can be locked to the ground terminal at any rotational position even when attached to the board. Can be connected.
The above is description of the structure of each member which comprises the connector 1. FIG.

  Next, in the connector unit 100, a procedure for assembling the connector 1 and a procedure for fitting the mating connector 3 to the connector 1 will be briefly described.

  First, the procedure for assembling the connector 1 will be described with reference to FIGS.

  First, the contacts 3a and 3b are press-fitted (from below) into the contact insertion holes 37a and 37b of the housing 5 shown in FIG.

  Next, the engaging portions of the shells 7 a and 7 b shown in FIG. 9 are engaged with the press-fitting portions (see FIG. 6) of the side wall portion of the housing 5 and fixed to the housing 5.

  Specifically, the short side locking portion 55a of the shell 7a is press-fitted into the press-fit portion 47b of the housing 5, the long-side lock portions 53b and 53c are press-fitted into the press-fit portion 47a, and the end lock portion 53a is pressed into the press-fit portion 49a. The bent portion 57 is inserted into the insertion portion 45 b, and the lower surface of the shell 7 a is abutted against the square frames 39 a and 39 b and the side frame 41 a of the housing 5 and fixed to the housing 5. At this time, the shell-side ground portion 61 is disposed in the notch 51b.

Similarly, the short side locking portion 55a of the shell 7b is pressed into the press-fit portion 49a of the housing 5, the long side locking portions 53b and 53c are press-fit into the press-fit portion 49b, and the end locking portion 53a is inserted into the press-fit portion 47b. The bent portion 57 is inserted into the insertion portion 45 a, and the lower surface of the shell 7 b is abutted against the square frames 43 a and 43 b and the side frames 41 b of the housing 5 and fixed to the housing 5. At this time, the shell side grounding portion 61 is disposed in the notch 51a.
In this way, the connector 1 is assembled.

  Next, a procedure for fitting the mating connector 3 to the connector 1 will be described with reference to FIGS. 2, 6, 12, and 13.

  First, as shown in FIG. 2, the grooves 33a and 33b of the connector 1 and the mating mating parts 15a and 15b of the mating connector 3 are aligned on the plane, and the mating mating part 15a is placed in the grooves 33a and 33b. , 15b are inserted.

  Then, as shown in FIG. 12, the mating contacts 11 a and 11 b of the mating connector 3 are connected to each other so that they are sandwiched between the U-shaped contact portions 41 of the contacts 3 a and 3 b of the connector 1.

On the other hand, as shown in FIG. 13, the ground terminals 12a and 12b of the mating connector 3 are inserted into the connecting grooves 35a and 35b (see FIG. 6) of the connector 1 and come into contact with the shell-side ground portions 61 of the shells 7a and 7b. Grounded.
In this way, the mating connector 3 is fitted to the connector 1 and is electrically connected.

  As described above, according to the first embodiment, the connector 1 of the connector unit 100 includes the thick plate-shaped housing 5 having a rectangular planar shape, the contacts 3a and 3b held by the housing 5, the housing 5 and the contacts. It has a pair of J-shaped shells 7a and 7b arranged on the side wall of the housing 5 so as to surround 3a and 3b.

  Therefore, the connector 1 can satisfy all of strength, electromagnetic shielding, and production cost.

  Next, a second embodiment will be described with reference to FIGS. 14 and 15.

  In the second embodiment, the shell side grounding portion 61 of the shell 7 a is provided inside the long side main body portion 53 in the first embodiment.

  In the second embodiment, elements having the same functions as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 14 and 15, in the shell 7 c according to the second embodiment, the shell side grounding portion 61 is provided on the inner side of the long side main body portion 53 (side facing the short side main body portion 55). .

  Thus, the position of the shell side grounding portion 61 is not necessarily limited to the connection main body portion 51, and can be provided at an arbitrary position of the shell 7c. In the case of the second embodiment, notches 51a and 51b provided in the second side walls 5c and 5d are formed in the first side walls 5a and 5b, and the shell side grounding is formed on the notches. In the ground terminals 12a, 12b for grounding the mating connector, the mating contacts 11a, 11b may be disposed at locations where the mating contacts are disposed.

As described above, according to the second embodiment, the connector 1 of the connector unit 100 includes the thick plate-like housing 5 having a rectangular planar shape, the contacts 3a and 3b held by the housing 5, the housing 5 and the contacts. It has a pair of J-shaped shells 7c and 7d (7d not shown) disposed on the side wall of the housing 5 so as to surround 3a and 3b.
Accordingly, the same effects as those of the first embodiment are obtained.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment.

  It will be understood by those skilled in the art that various modifications and improvements are conceived within the technical scope of the present invention, and these are also included in the scope of the present invention.

  For example, in the above-described embodiment, the short side locking portion 55a of the shell 7a is press-fitted into the press-fit portion 47b of the housing 5, the long-side lock portions 53b and 53c are press-fitted into the press-fit portion 47a, and the end lock portion 53a is press-fitted. The shell 7a is fixed to the housing 5 by inserting it into the portion 49a and inserting the bent portion 57 into the insertion portion 45b. However, the locking portion to be press-fitted and the locking portion to be inserted are not limited to the above combination, and the short-side locking portion 55a and the long-side locking portion 53b are engaged / fixed to the housing 5 and a substrate (not shown). However, by providing a terminal for connection with the ground terminal of the substrate (not shown) in the other part of the shell 7a, the short side locking portion 55a can be used. And the long side locking portion 53b may be used only for engagement / fixation to the housing 5.

1 connector 3 mating connector 3a contact 3b contact 5 housing 5a first side wall 5b first side wall 5c second side wall 5d second side wall 7a shell 7b shell 7c shell 9 main body 11a mating contact 11b mating contact 12a grounding Terminal 12b Ground terminal 15a Mating portion 15b Mating portion 17 Protruding portion 33a Groove portion 33b Groove portion 35a Connection groove 35b Connection groove 37a Contact insertion hole 37b Contact insertion hole 39a Square frame 39b Square frame 41 U-shaped contact portion 41a side Frame 41b Side frame 43 External connection portion 43a Square frame 43b Square frame 45a Insertion portion 45b Insertion portion 47a Press-fit portion 47b Press-fit portion 49a Press-fit portion 49b Press-fit portion 51 Connection main body portion 51a Notch portion 51b Notch portion 53 Long side main body portion 53a End portion Locking part 53b Long side locking part 53c Long side locking part 55 Short side body part 55a Short side locking part 57 Bending part 61 Shell side grounding part 100 Connector unit

Claims (8)

A housing having a pair of first side wall portions facing each other, and a pair of second side wall portions connecting and opposing ends of the pair of first side wall portions;
Contacts held in the housing in a pitch direction along the first side wall,
A pair of shells held on at least one of the first side wall and the second side wall of the housing;
Have
The pair of shells is
A connecting main body disposed along the second side wall;
A short-side main body provided continuously from one end of the connection main body and disposed along one first side wall;
A long-side main body provided continuously from the other end of the connecting main body and disposed along the other first side wall;
Have
In the pitch direction of the contacts, the length of the shorter side body portion rather short than the length of the long side body portion,
The short side main body portion has a short side locking portion that engages with one of the first side wall portions at an end portion,
The long-side main body has an end locking portion that engages with the other first side wall at the other end . The short side locking portion is provided between the contact closest to the connection main body and the connection main body,
It said end locking portion, the connector according to claim 1, characterized in that provided at a position farther from the coupling body portion than the farthest the contact from the coupling body portion. The long side body portion, the connector according to any one of claims 1 or 2, characterized by further comprising the long side locking portion which is formed at a position facing the short side locking portion. The connecting body portion, the connector according to any one of claims 1 to 3, characterized in that it has a shell-side grounding portion connected to the ground terminal of the mating connector. Each of a pair of said shells has the same shape, The connector as described in any one of Claims 1-4 characterized by the above-mentioned. The housing has a plate-like shape with a rectangular planar shape,
The first side wall corresponds to the long side of the rectangle;
The said 2nd side wall part respond | corresponds to the said rectangular short side, The connector as described in any one of Claims 1-5 characterized by the above-mentioned. The housing is provided on the rectangular surface along the long side, and has a pair of grooves into which a mating connector is inserted.
The contacts are arranged in a pair of the groove portions, and contact each other so as to sandwich the contact of the mating connector, and the first side wall portion from one end of the U-shaped contact portion. The connector according to claim 6, further comprising an external connection portion provided to be extended so that the tip is exposed on the side. And a connector according to any one of claims 1 to 7 and a mating connector to be fitted to the connector,
The mating connector has a ground terminal that contacts the shell-side ground portion of the connector.

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