JP2010157367A - Electrical connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical connector having a high shield effect and easy to be assembled. <P>SOLUTION: The amount L1 of insertion engagement stroke from engagement start to engagement completion of a first engagement projection part 10 and a first engagement recess part 11 with respect to connector connection direction Y1 is made larger than the amount L2 of connection stroke from connection start to connection completion of first and second contacts 7, 13. When first and second connectors 3, 5 are connected, before start of the connection of the first and second contacts 7, 13, insertion engagement of the first insertion engagement projection part 10 and the first engagement recess part 11 is started. Then, first and second shells 8, 14 come into surface-contact with each other on both sides of the first engagement projection part 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electrical connector.

  There is an electrical connector in which a plug connector attached to an end portion of an electric wire is inserted into a receptacle connector fixed to a circuit board in a direction perpendicular to the surface of the circuit board and fitted.

For example, when the receptacle connector and the plug connector are fitted in a direction substantially orthogonal to the direction of the multipolar arrangement, the conductive terminals and the conductive shells of both connectors are brought into contact with each other so that the terminal connection portion and the shell connection portion Has been proposed, and an electrical connector has been proposed in which a shell connection portion is disposed opposite to a terminal connection portion (see Patent Document 1).
JP 2008-147020 A

  However, Patent Document 1 has a problem that it is difficult to confirm when both connectors are half-fitted.

  Further, the terminal connecting portion is formed almost simultaneously with the start of the substantial fitting between the fitting convex portion of the plug connector and the fitting concave portion of the receptacle connector. For this reason, if the position of a fitting convex part and a fitting recessed part is not taken, an excessive load will be applied to a terminal and there exists a possibility that a terminal may produce a deformation | transformation.

  In order to prevent the terminal from being deformed, it is necessary to carefully connect the two connectors, and therefore the assemblability is poor from this point.

  An object of the present invention is to provide an electrical connector that has a high shielding effect and is easy to assemble.

  In order to achieve the above object, the present invention includes first and second connectors coupled to each other along a connector coupling direction, the first connector comprising: an insulating first housing; A plurality of first contacts held by the housing and arranged in a contact arrangement direction orthogonal to the connector connecting direction, a conductive first shell covering the surface of the first housing, and at least by the first shell A first fitting convex portion and a second fitting concave portion that are partially partitioned, wherein the second connector is held by the second housing and the plurality of the second housings. A plurality of second contacts respectively connected to the first contacts, a conductive second shell covering the surface of the second housing, and at least partly defined by the second shell. When the first and second connectors are connected, the first fitting convex portion is fitted into the first fitting concave portion. In addition, the second fitting convex portion is fitted into the second fitting concave portion, and on both sides of the first fitting convex portion in the orthogonal direction perpendicular to both the connector connecting direction and the contact arranging direction, The first and second shells are in surface contact with each other, and the first and second contacts are elastically contacted in the orthogonal direction on one side of the second fitting convex portion with respect to the orthogonal direction. The fitting stroke amount from the start of fitting of the first fitting convex part and the first fitting concave part in the connector connecting direction to the completion of fitting is from the start of connection of the first and second contacts. It is larger than the connection stroke amount until the connection is completed. When connecting the first and second connectors, the first fitting convex portion and the first fitting concave portion are started to be fitted prior to the start of connection of the first and second contacts. It is characterized by that.

  In the present invention, when the two connectors are connected, the first fitting convex portion and the first fitting concave portion are started to be fitted prior to the start of the connection of the first and second contacts. Both connectors can be easily connected without applying unnecessary load to the first and second contacts, and assembly is easy. In addition, it is possible to ensure a contact pressure without bias in each contact. In addition, since the first and second shells are in surface contact at two locations on both sides of the first fitting convex portion, the connection between both shells is reliable and the shielding property can be enhanced.

  In addition, the second shell includes an upper shell and a lower shell that are connected to each other with the second housing interposed between the outer conductors of the plurality of coaxial cables, the ground bars extending in the contact arrangement direction. In some cases, the ground bar is annularly surrounded by the upper shell and the lower shell (claim 2). In this case, the shielding property can be remarkably increased.

  The upper shell has an upper plate that covers the upper surface of the second housing, and the lower shell has a lower plate that covers the lower surface of the second housing, and the upper surface of the upper plate and the lower plate When the first and second connectors are assembled so that the outer dimension of the lower surface corresponds to the height of the electrical connector, the first fitting convex portion and the second fitting convex portion are In some cases, they are arranged side by side (Claim 3). In this case, the electrical connector can be reduced in height and size.

  The upper shell includes a front plate and a rear plate extending downward from the upper plate and facing the contact arrangement direction, and the lower shell extends upward from the lower plate and faces the contact arrangement direction. In some cases, the front plate and the rear plate of the upper shell and the lower shell are arranged along each other. In this case, when the upper shell and the lower shell are assembled, the assembly of the upper shell and the lower shell can be guided by the fact that the front plates and the rear plates are aligned with each other. Further, the upper shell and the lower shell can be firmly connected.

  Further, the ground bar is in surface contact with the lower surface of the upper plate of the upper shell, and a pair of openings are formed to straddle from the upper plate of the upper shell to the front plate and the rear plate of the upper shell, In some cases, an extended portion is formed at each of the pair of end portions in the longitudinal direction of the ground bar, and each opening of the upper shell is covered with a corresponding extended portion of the ground bar. In this case, the connection between the ground bar and the upper shell can be ensured, and the openings of the upper shell are covered with the corresponding extending portions of the ground bar, so that the shielding property can be enhanced.

  Moreover, the edge part of each opening of the said upper shell and the corresponding extension part of a ground bar may be soldered (Claim 6). In this case, a more stable connection can be ensured between the upper shell and the ground bar.

  Further, the upper shell and the lower shell may be connected by caulking (Claim 7). In this case, the upper shell and the lower shell can be easily assembled.

  Further, the first connector includes a third fitting convex portion at least partly defined by the first shell, and the second connector is at least partly defined by the second shell. When the first and second connectors are connected, including the third fitting recess, the third fitting projection is fitted into the third fitting recess, and the third fitting In some cases, the first and second shells are in surface contact with one side surface of the fitting convex portion. In this case, the first and second shells can be brought into surface contact with each other at a total of three locations, two locations on both sides of the first fitting projection and one location on one side of the third fitting projection. Therefore, the connection between the first shell and the second shell is reliable, and the shielding property can be remarkably increased.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic perspective view of an electrical connector according to an embodiment of the present invention. As shown in FIG. 1, the electrical connector 1 includes a first connector 3 attached to the surface 2a of the circuit board 2, and a second connector to which ends of coaxial cables 4 as a plurality of electric wires arranged side by side are attached. And a connector 5.

  As shown in FIG. 2 which is an exploded perspective view, the first connector 3 includes an insulating first housing 6 and a plurality of first connectors 6 held by the first housing 6 and arranged in a predetermined contact arrangement direction X1. 1 contact 7 and a conductive first shell 8 covering the surface of the first housing 6.

  The first housing 6 has a main body 9 arranged in parallel with the circuit board 2. The first connector 3 includes a protrusion protruding from the main body 9 of the first housing 6 toward the second connector 5 in the connector connecting direction Y1 perpendicular to the contact arrangement direction X1, and a first surface covering the surface of the protrusion. The first fitting convex part 10 comprised by the part of 1 shell 8 is provided.

  The second connector 5 includes an insulating second housing 12 that defines a part of the first fitting recess 11 in which the first fitting protrusion 10 is fitted along the connector connecting direction Y1. And a plurality of second contacts 13 (see also FIG. 11) held by the second housing 12 and arranged in the contact arrangement direction X1 and connected to the plurality of first contacts 7, respectively, as shown in FIG. As described above, a conductive second shell 14 that covers the surface of the second housing 12 and defines a part of the first fitting recess 11 is provided.

  The coaxial cable 4 extends in the longitudinal direction along the orthogonal direction Z1 orthogonal to both the contact arrangement direction X1 and the connector coupling direction Y1.

  3 is a cross-sectional view of the first and second connectors 3 and 5 connected together, and FIGS. 4A and 4B are exploded cross-sectional views of the first and second connectors 3 and 5. FIG. Referring to, when connecting the first and second connectors 3 and 5, the first fitting convex portion 10 of the first connector 3 becomes the first fitting concave portion 11 of the second connector 5. The second fitting convex portion 15 provided in the second connector 5 is fitted in the second fitting concave portion 16 provided in the first connector 3, and the first fitting The third fitting convex part 17 provided in the connector 3 is adapted to be fitted into the third fitting concave part 18 provided in the second connector 5.

  In the first connector 3, the second fitting recess 16 is partitioned by a part of the main body 9 of the first housing 6 and a part of the first shell 8. In the first connector 3, the third fitting convex portion 17 is configured by a part of the main body 9 of the first housing 6 and a part of the first shell 8.

  Further, as shown in FIG. 12, in the second connector 5, the second fitting convex portion 15 is configured by a convex portion provided on the second housing 12 and a part of the second shell 14. Yes. Further, in the second connector 5, the third fitting recess 18 is constituted by a convex portion of the second housing 12 and a part of the second shell 14.

  As shown in FIG. 4A, the second fitting recess 16 is formed between the first fitting protrusion 10 and the third fitting protrusion 17. As shown in FIG. 3, the first and second shells 8 and 14 are in surface contact with each other on both sides of the first fitting convex portion 10 in the orthogonal direction Z1. Specifically, the first side plates 38 and 67 of the first and second shells 8 and 14 are in surface contact with each other, and the second side plates 39 and 68 of the first and second shells 8 and 14 are in surface contact with each other. To do.

  Further, the first and second contacts 7 and 13 are elastic in the orthogonal direction Z1 on one side of the second fitting convex portion 15 (one side of the third fitting convex portion 17) with respect to the orthogonal direction Z1. To make contact. Specifically, the contact portion 28 of the first contact 7 is fitted into the contact recess 59 of the second contact 13 and elastically contacts in the orthogonal direction Z1.

  The first and second shells 8 and 14 are in surface contact with each other on the other side of the third fitting convex portion 17. Specifically, the side wall 29 of the first shell 8 is in surface contact with the first side plate 77 of the second shell 14.

  The main feature of the present embodiment is that the first fitting convex portion 10 and the first fitting concave portion 11 in the connector connecting direction Y1 start to be fitted (see FIG. 4A) and the fitting is completed. The fitting stroke amount L1 until (see FIG. 3) is based on the connecting stroke amount L2 from the start of connection of the first and second contacts 7 and 13 (see FIG. 4B) to the completion of connection (see FIG. 3). Is also increased (L1> L2).

  Thus, when the first and second connectors 3 and 5 are coupled, the first fitting convex portion 10 and the first fitting are engaged prior to the start of the connection of the first and second contacts 7 and 13. The mating recess 11 starts to be fitted. As a result, both the connectors 3 and 5 can be easily connected without applying unnecessary load to the first and second contacts 7 and 13.

  In addition, in a state where the first fitting convex portion 10 is properly fitted in the first fitting concave portion 11, as shown in FIG. (Corresponding to the upper surface of the upper plate 37 of the convex cover 33 of the first shell 8) is flush with the peripheral edge 69 a of the opening 69 of the first fitting concave portion 11. It can be easily confirmed visually that both connectors 3 and 5 are properly fitted.

  Next, the first connector 3 will be described in detail with reference to FIGS.

  As shown in FIGS. 5, 6, and 7, the first fitting convex portion 10 is a rectangular parallelepiped block having a length in the contact arrangement direction X <b> 1 and a pair of wall surfaces 19, 20 facing the orthogonal direction Z <b> 1. Is included. As shown in FIG. 5, the first housing 6 is formed with a plurality of contact receiving grooves 21 in a portion forming a part of the first fitting convex portion 10. Each corresponding first contact 7 is accommodated. On the other hand, as shown in FIG. 9, contact housing grooves 23 that face the respective contact housing grooves 21 are formed on one inner wall surface 22 of the second fitting recess 16.

  Each of the first contacts 7 has a main portion 24 having a groove shape protruding upward along the bottom of the corresponding contact receiving groove 21, and extends from one end of the main portion 24 toward the orthogonal direction Z <b> 1. A first elastic piece 25 facing the bottom 16a of the fitting recess 16, and a second elastic piece 26 extending from the tip of the first elastic piece 25 upward (connector connection direction Y1). And a lead 27 extending from the other end of the main body 24 in the orthogonal direction Z1.

  The second elastic piece portion 26 is accommodated in the contact accommodating groove 23. Further, the second elastic piece portion 26 is provided with a contact portion 28 having a mountain shape protruding from the contact receiving groove 23 toward the second fitting recess 16 side (orthogonal direction Z1). As shown in FIG. 3, the contact portion 28 of the first contact 7 is in elastic contact with the second contact 13 in the orthogonal direction Z1. The leads 27 are soldered to corresponding conductive portions (not shown) on the surface 2a of the circuit board 2.

  The first shell 8 is integrally formed of a single sheet metal. 5 to 8, the first shell 8 includes a pair of side walls 29, 30 facing each other in the orthogonal direction Z1, and connecting pieces for connecting the front ends and the rear ends of the pair of side walls 29, 30 respectively. 31 and 32 and covering at least a part of the surface of the convex part of the first housing 6 constituting a part of the first fitting convex part 10 and extending from one side wall 29 to form an inverted L-shape. A convex cover 33 formed, a front wall 34 and a rear wall 35 extending orthogonally from the respective connecting pieces 31 and 32 and covering the front and rear portions of the first housing 6, respectively, and the front wall 34 and the rear wall 35. Lead 36 extending from each of the two. The lead 36 is soldered to a corresponding conductive diagram (not shown) on the surface 2a of the circuit board 2 and is grounded.

  As shown in FIGS. 5, 6, and 9, the convex portion cover 33 includes an upper plate 37 that covers the upper surface of the first fitting convex portion 10, and the first fitting convex portion 10. A first side plate 38 that covers one side surface of the convex portion of the housing 6 and continues to the side wall 30, and a second side plate that covers the other side surface of the convex portion of the first housing 6 that constitutes the first fitting convex portion 10. 39.

  As shown in FIGS. 5 and 8, a locking hole 40 is formed in the side wall 29, and a locking projection 41 of the first housing 6 is locked in the locking hole 40. Further, as shown in FIGS. 5, 6, and 7, each side portion of the front wall 34 and the rear wall 35 has a pair of locking ribs 42 that are formed in an inward saddle shape provided in the first housing 6. It is locked to. The first shell 8 is attached to the first housing 6 by the locking by the locking holes 40 and the locking ribs 42.

  Next, the second connector 5 will be described in detail with reference to FIGS.

  As shown in FIG. 10, the second housing 12 includes a main portion 43, a portion that protrudes downward from the lower surface of the main portion 43 and constitutes a part of the second fitting convex portion 15, and a lower surface of the main portion 43. 10 and 13 and a pair of extending arms 45 projecting from the main body 43 to the opposite side to the coaxial cable 4. Referring to FIG. 10, a third fitting concave portion 18 is formed between the second fitting convex portion 15 and the convex portion 44.

  The coaxial cable 4 includes an inner conductor 4a, an inner insulator 4b that covers the outer periphery of the inner conductor 4a, a net-like outer conductor 4c that covers the outer side of the inner insulator 4b, and an outer insulator that covers the outer side of the outer conductor 4c. A body 4d.

  On the upper surface of the main body 43, contact housing grooves 46 for housing the respective second contacts 13 are formed. The inner conductor 4a of the coaxial cable 4 is connected to each second contact 13 by soldering. A ground bar accommodating portion 47 that communicates with the plurality of contact accommodating grooves 46 is formed on the upper surface of the main portion 43.

  That is, as shown in FIG. 11, the outer conductors 4c of the plurality of coaxial cables 4 are connected to a ground bar 48 extending in the contact arrangement direction X1 by soldering. The plurality of coaxial cables 4 are held by a holder 49 so as to be aligned. The holder 49 has a bottom wall 50, a plurality of partition walls 51 projecting on the bottom wall 50, and a positioning wall 52 projecting downward from the edge of the bottom wall 50.

  A holding groove 53 for holding the corresponding coaxial cable 4 is defined between the adjacent partition walls 51. When the upper end of each partition wall 51 is locked to the ground bar 48, the upper portion of the holding groove 53 is closed.

  The positioning wall 52 is press-fitted into a positioning recess 54 formed at the bottom of the ground bar accommodating portion 47 of the second housing 12. This prevents the ground bar 48 from being twisted.

  Referring to FIG. 10, each second contact 13 is formed on second housing 12 on one side surface of second fitting convex portion 15 (corresponding to the inner side surface of third fitting concave portion 18). A main portion 56 held in the contact receiving groove 55, an orthogonal portion extending from the upper end of the main portion 56 and held in the contact receiving groove 46, and an orthogonal shape from the lower end of the main portion 56. And an extended portion 58 extending along the lower surface of the second fitting convex portion 15.

  A contact recess 59 in which the chevron-shaped contact portion 28 of the first contact 7 is elastically fitted is formed in the middle portion of the main body portion 56. The extended portion 57 is connected to the inner conductor 4a of the coaxial cable 4 by soldering.

  The second shell 14 has an upper shell 60 and a lower shell 61 that are connected to each other with the second housing 12 interposed therebetween. The upper shell 60 and the lower shell 61 surround the ground bar 48 in an annular shape, and the shielding effect is remarkably enhanced.

  As shown in FIGS. 11 and 13, the upper shell 60 includes an upper plate 62, a first front plate 63 and a first rear plate 64 opposed to the front and rear (contact arrangement direction X1), and the front and rear (contact arrangement direction X1). The second front plate 65 and the second rear plate 66 that face each other, and the first side plate 67 and the second side plate 68 that define a part of the first fitting recess 11. Referring to FIG. 10, convex ribs 67a extending in parallel with the contact arrangement direction X1 are formed on the outer surface of the first side plate 67 to improve the strength.

  The upper plate 62 is formed with an opening 69 for opening the first fitting recess 11 upward. The first side plate 67 and the second side plate 68 are extended downward from the upper edge of the opening 69. ing.

  Further, as shown in FIG. 11, a pair of openings 70 are formed so as to straddle the first front plate 63 and the first rear plate 64 from the upper plate 62. On the other hand, extending portions 71 are extended from each of the pair of end portions in the longitudinal direction of the ground bar 48. As shown in FIG. 15, each opening 70 is covered with a corresponding extending portion 71 of the ground bar 48.

  As shown in FIG. 13, the second front plate 65 and the second rear plate 66 are provided along the outer surface of the corresponding extension arm 45 of the second housing 12. The first fitting recess 11 is partitioned in four directions by a pair of extending arms 45, a first side plate 67 and a second side plate 68. The locking pieces 72 bent inward from the lower ends of the second front plate 65 and the second rear plate 66 are respectively engaged with locking grooves 73 (see also FIG. 11) formed in the corresponding extending arms 45. It has been stopped.

  As shown in FIG. 11, the lower shell 61 is formed on the lower plate 74 covering the lower surface of the convex portion 44 of the second housing 12, the front plate 75 along the front surface of the convex portion 44, and the rear surface of the convex portion 44. A rear plate 76 is provided along the first side plate 77 and a second side plate 78 along the pair of side surfaces of the convex portion 44.

  The front plate 75 and the rear plate 76 are provided with receiving grooves 79 for receiving the extended portions 71 at both ends of the ground bar 48, respectively. The second housing 12 is provided with receiving grooves 80 that are connected to the receiving grooves 79 and receive the corresponding extending portions 71. Openings 81 are formed so as to straddle the lower plate 74 from the lower portions of the front plate 75 and the rear plate 76.

  In the state in which the upper shell 60 and the lower shell 61 are assembled, as shown in FIG. 13, the first front plate 63 and the first front plate 63 of the upper shell 60 are respectively formed on the outer surfaces of the front plate 75 and the rear plate 76 of the lower shell 61. The inner surface of the rear plate 64 is aligned. Further, as shown in FIGS. 11 to 13, the locking pieces 82 bent inward from the lower ends of the first front plate 63 and the first rear plate 64 of the upper shell 60 are provided in the opening 81 of the lower shell 61. And is locked in the locking groove 83 of the second housing 12.

  As shown in FIGS. 10, 13, and 15, engaging claws 84 project from the inner surfaces of the pair of extending arms 45 that define the first fitting recess 11. On the other hand, as shown in FIGS. 5 and 6, the engagement recesses that can be engaged with the engagement claws 84 are respectively provided on the front wall and the rear wall of the first fitting projection 10 of the first connector 3. 85 is provided. As each engaging claw 84 engages with the corresponding engaging recess 85, the connection state between the first fitting protrusion 10 and the first fitting recess 11 is maintained with a predetermined holding force. It has become so.

  As shown in FIG. 12, the first side plate 77 of the lower shell 61 is formed with, for example, a mountain-shaped engagement claw 86, and the engagement claw 86 is a third fitting protrusion of the first connector 3. A part of the portion 17 is elastically engaged with the side wall 29 of the first shell 8, and the connection state between the third fitting convex portion 17 and the third fitting concave portion 18 is set to a predetermined holding force. It comes to hold in.

  According to the present embodiment, the fitting stroke amount L1 from the start of fitting to the completion of fitting of the first fitting convex portion 10 and the first fitting concave portion 11 in the connector connecting direction Y1 is the first contact. 7 and the connection stroke amount L2 from the connection start to the connection completion of the second contact 13 (L1> L2). Therefore, when connecting the first and second connectors 3 and 5, prior to the start of connection of the first and second contacts 7 and 13, the first fitting protrusion 10 and the first fitting are connected. The fitting of the recess 11 is started.

  As a result, both connectors 3 and 5 can be easily connected without applying unnecessary load to the first and second contacts 7 and 13, and are easy to assemble. Further, it is possible to ensure a contact pressure without bias in the contacts 7 and 13.

  Further, the first and second shells 8 and 14 are in surface contact at two locations on both sides of the first fitting convex portion 10 in a connected state of the connectors 3 and 5. Specifically, since the first side plate 38 and the second side plate 39 of the convex cover 33 of the first shell 8 are in surface contact with the first side plate 67 and the second side plate 68 of the second shell 14, respectively. The connection between the shells 8 and 14 is reliable, and the shielding property can be enhanced.

  Furthermore, the side wall 29 of the first shell 8 that covers one side surface of the third fitting convex portion 17 of the first connector 3 in the connected state of the connectors 3 and 5 is the second connector 5. Since the first fitting plate 18 is in surface contact with the first side plate 77 of the three fitting recesses 18, two places on both sides of the first fitting projection 10 and one place on one side of the third fitting projection 17 are in total three places. The first and second shells 8 and 14 can be brought into surface contact with each other. Therefore, the connection between the first and second shells 14 is reliable, and the shielding performance can be remarkably increased.

  In addition, since the ground bar 48 that connects the outer conductors 4c of the coaxial cable 4 is surrounded by the upper shell 60 and the lower shell 61 that are connected to each other with the second housing 12 interposed therebetween, From the point of view, the shielding property can be remarkably increased.

  Further, since the upper shell 60 and the lower shell 61 are connected by caulking the locking piece 82 to the locking groove 83, the upper shell 60 and the lower shell 61 can be easily assembled.

  Further, since the ground bar 48 is in surface contact with the lower surface of the upper plate 62 of the upper shell 60, the connection between the ground bar 48 and the upper shell 62 can be ensured, and the upper plate 62 of the upper shell 60 can be secured. The opening 70 formed so as to straddle the first front plate 63 and the first rear plate 64 from each other can enhance the shielding performance by the extending portion 71 at the corresponding end of the ground bar 48.

  In particular, when the edge of each opening 70 of the upper shell 60 and the corresponding extended portion 71 of the ground bar 48 are soldered, a more stable connection between the upper shell 60 and the ground bar 48 is achieved. Can be secured.

  Further, the external dimension H1 between the upper plate 62 of the upper shell 60 covering the upper surface of the second housing 12 and the lower plate 74 of the lower shell 61 covering the lower surface of the second housing is equal to the height of the electrical connector 1. Correspondingly, since the first fitting convex portion 10, the second fitting convex portion 15, and the third fitting convex portion 17 are arranged side by side, the electrical connector 1 is reduced in height, Miniaturization can be achieved.

  Further, in assembling the upper shell 60 and the lower shell 61 in the second connector 5, the first front plate 63 of the upper shell 60 and the front plate 75 of the lower shell 61 are along, and the first rear plate of the upper shell 60 is aligned. By assembling the plate 64 and the rear plate 76 of the lower shell 61, the assembly of the upper shell 60 and the lower shell 61 can be guided, so that the assemblability is improved. Further, the upper shell 60 and the lower shell 61 can be firmly connected.

  Further, as shown in FIG. 10, since the first fitting recess 11 of the second connector 5 is opened upward through the opening 69, both the connectors 3 and 5 are assembled as shown in FIG. Sometimes, the first fitting convex portion 10 can be visually recognized through the first fitting concave portion 11, and therefore, the second connector 5 is easily aligned with the first connector 3 on the circuit board 2. . In addition, with the first fitting convex portion 10 properly fitted in the first fitting concave portion 11, as shown in FIG. Since it is flush with the peripheral edge 69a of the opening 69 of one fitting recess 11, the operator can easily visually confirm that the connectors 3 and 5 are properly fitted. .

  The present invention is not limited to the above embodiment. For example, as shown in FIG. 16, the second housing 12A of the second connector 5A is provided with at least one rib 87 protruding downward, The lower ends 87 a of the ribs 87 may protrude downward from the lower plate 74 of the lower shell 61 of the second shell 14.

  Referring to FIG. 17, ribs 87 protrude downward from the four corners of lower surface 44a (corresponding to the lower surface of second housing 12A) of convex portion 44 of second housing 12A, as in the present embodiment. One rib 87 may be provided, or one to three ribs 87 may be provided. However, it is preferable to provide two or more ribs 87 in order to stably support the second connector 5A on the circuit board 2. 16 and 17, the same components as those in FIG. 10 are denoted by the same reference numerals.

  In the present embodiment, it is possible to reliably prevent the lower plate 74 of the lower shell 61 of the second shell 14 from coming into contact with the surface 2a of the opposing circuit board 2. Therefore, even when the lower surface of the second connector 5 is covered with the lower plate 74 of the lower shell 61 of the second shell 14 in order to enhance electromagnetic shielding properties, the lower plate 74 is formed on the surface 2 a of the circuit board 2. It is possible to form a conductive pattern in a region opposite to. That is, the conductive pattern formation prohibited area can be eliminated on the surface 2 a of the circuit board 2.

  Moreover, in this invention, electric wires other than the coaxial cable 4 can be used. Moreover, the number of electric wires should just be plural. In addition, various modifications can be made within the scope of the present invention.

1 is a schematic perspective view of an electrical connector according to an embodiment of the present invention. It is a disassembled perspective view of an electrical connector. It is sectional drawing of an electrical connector, and has shown the state to which the 1st and 2nd connector which comprises an electrical connector was connected. (A) And (b) is an exploded sectional view showing an assembly process of an electric connector. It is the perspective view which looked at the 1st connector from diagonally forward. It is the perspective view which looked at the 1st connector from diagonally back. It is a top view of the 1st connector. It is a side view of the 1st connector. It is sectional drawing of a 1st connector. It is sectional drawing of a 2nd connector. It is a disassembled perspective view of a 2nd connector. It is the perspective view which looked at the 2nd connector from diagonally downward. It is a bottom view of the 2nd connector. It is sectional drawing of a 2nd connector. It is the perspective view which looked at the 2nd connector from diagonally upward. It is the perspective view which looked at the 2nd connector of another embodiment of this invention from diagonally downward. It is a bottom view of the principal part of the 2nd housing of the 2nd connector of embodiment of FIG. 16, and has shown the layout of the rib.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical connector 2 Circuit board 2a Surface 3 1st connector 4 Coaxial cable (electric wire)
4a inner conductor 4c outer conductors 5, 5A second connector 6 first housing 7 first contact 8 first shell 10 first fitting convex portion 10a (first fitting convex portion) front end surface 11 1st fitting recessed part 12 and 12A 2nd housing 13 2nd contact 14 2nd shell 15 2nd fitting convex part 16 2nd fitting recessed part 17 3rd fitting convex part 18 3rd Fitting recess X1 Contact arrangement direction Y1 Connector connection direction Z1 orthogonal direction 28 contact portion 33 convex portion cover 37 upper plate 38 first side plate 39 second side plate 44 convex portion 45 extended arm 46 contact accommodating groove 47 ground bar accommodating portion 48 ground Bar 49 Holder 60 Upper shell 61 Lower shell 62 Upper plate 63 First front plate 64 First rear plate 65 Second front plate 66 Second rear plate 67 First side plate 68 Second side plate 69 (of the first fitting recess) Opening 69a Peripheral edge 71 of the opening 72 Extending portion 72 Locking piece 73 Locking groove 74 Lower plate 75 Front plate 76 Rear plate 77 First side plate 78 Second side plate 79, 80 Receiving groove 81 Joint claw 85 engaging recess

Claims (8)

Comprising first and second connectors connected to each other along the connector connecting direction;
The first connector includes an insulating first housing, a plurality of first contacts held in the first housing and arranged in a contact arrangement direction orthogonal to the connector connecting direction, and the first housing A first conductive shell that covers the surface of the first and second fitting recesses and at least partly defined by the first shell,
The second connector includes an insulating second housing, a plurality of second contacts held by the second housing and connected to the plurality of first contacts, and a surface of the second housing. A conductive second shell covering; a first fitting concave portion and a second fitting convex portion at least partially defined by the second shell;
When connecting the first and second connectors, the first fitting convex portion is fitted into the first fitting concave portion, and the second fitting convex portion is fitted into the second fitting concave portion. Together
The first and second shells are in surface contact with each other on both sides of the first fitting convex portion with respect to the orthogonal direction orthogonal to both the connector connecting direction and the contact arranging direction,
The first and second contacts are elastically contacted in the orthogonal direction on one side of the second fitting convex portion with respect to the orthogonal direction,
The amount of fitting stroke from the start of fitting to the completion of fitting of the first fitting convex portion and the first fitting concave portion in the connector connecting direction is the connection from the start of connection of the first and second contacts to the completion of connection. The stroke amount is larger than the stroke amount. As a result, when connecting the first and second connectors, the first fitting convex portion and the first fitting portion are connected to the first and second contacts before starting the connection. An electrical connector, wherein fitting of the fitting recess is started. In Claim 1, comprising a ground bar that connects the outer conductors of a plurality of coaxial cables to each other and extends longitudinally in the contact arrangement direction,
The second shell includes an upper shell and a lower shell connected to each other with a second housing interposed therebetween,
An electrical connector, wherein a ground bar is annularly surrounded by an upper shell and a lower shell. In Claim 2, the said upper shell has an upper board which covers the upper surface of the 2nd housing,
The lower shell has a lower plate that covers the lower surface of the second housing,
When the first and second connectors are assembled such that the outer dimension of the upper surface of the upper plate and the lower surface of the lower plate corresponds to the height of the electrical connector, An electrical connector characterized in that the portion and the second fitting convex portion are arranged side by side. In Claim 3, the upper shell includes a front plate and a rear plate extending downward from the upper plate and facing the contact arrangement direction,
The lower shell includes a front plate and a rear plate extending upward from the lower plate and facing the contact arrangement direction,
An electrical connector characterized in that the front and back plates of the upper shell and the lower shell are arranged along each other. In Claim 4, the ground bar is in surface contact with the lower surface of the upper plate of the upper shell,
A pair of openings are formed to straddle the front plate and the rear plate of the upper shell from the upper plate of the upper shell,
An extending portion is formed at each of the pair of end portions in the longitudinal direction of the ground bar,
An electrical connector, wherein each opening of the upper shell is covered with a corresponding extending portion of the ground bar.   6. The electrical connector according to claim 5, wherein an edge portion of each opening of the upper shell and a corresponding extending portion of the ground bar are soldered.   7. The electrical connector according to claim 2, wherein the upper shell and the lower shell are connected by caulking. The first connector according to claim 1, wherein the first connector includes a third fitting convex portion that is at least partially partitioned by the first shell,
The second connector includes a third fitting recess at least partly defined by the second shell,
When connecting the first and second connectors, the third fitting convex portion is fitted into the third fitting concave portion,
An electrical connector, wherein the first and second shells are in surface contact with one side surface of the third fitting convex portion.

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