JP2012069353A - Shield case, connector and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shield case capable of improving an exfoliation strength to a substrate, and restraining deterioration of a strength and an EMI characteristic of the shield case even if an elastic contact piece is provided.SOLUTION: A shield case 100 comprises a relative inner wall 110, in which a plug P can be inserted; an elastic contact piece 111 formed by cutting one part of the inner wall 110 inward; an opening 112 around it; a bottom plate part 120 provided at a lower end 110c of a front portion of the inner wall 110; a folding part 130 communicated with a front end 110a of the inner wall 110 and folded toward a rear end 110b of the inner wall 110; an outer wall 140 communicated with the folding part 130, arranged along an outer surface of the inner wall 110, and covering the opening 112; and a first connecting leg part 160a provided at a front portion of the outer wall 140 in an inserting direction α.

Description

  The present invention relates to a shield case, a connector using the shield case, and an electronic apparatus including the connector.

  This type of receptacle connector includes a cylindrical shield case, a body accommodated in a back side portion of the shield case, and a plurality of contacts arranged in the body. The front portion of the shield case and the front surface of the body define an insertion hole into which the plug connector can be inserted. The shield case is suspended from a bottom plate portion, a pair of side wall portions facing each other, a pair of elastic contact pieces that are partly raised and inclined inwardly, and a back side portion of the side wall portion, and And a pair of connecting legs that are solder-connected to the substrate (see page 7, FIG. 1 and FIG. 2 of Patent Document 1).

Special Table 2000-515302

  By the way, the elastic contact piece is disposed on the front side portion of the side wall portion of the shield case in order to make elastic contact with the shell of the plug connector inserted into the insertion hole. Further, since the body is accommodated in the back side portion of the shield case, the bottom plate portion is provided between the near side portions of the side wall portions. Due to the structure of such a shield case, the connecting leg can be provided only on the back side of the side wall. Therefore, when a load is applied to the front side of the shield case and / or the front surface of the body in the state where the plug connector is inserted into the shield case, the connecting leg located on the back side of the shield case serves as a fulcrum. Since the receptacle connector operates, a large load is applied to the solder connection portion between the connection leg and the substrate. Thus, the receptacle connector had a weak peel strength with respect to the substrate.

  Further, an opening is formed around the elastic contact piece on the side wall by cutting and raising the elastic contact piece. Therefore, in the receptacle connector, the strength of the shield case is lowered and the EMI characteristics of the shield case are also lowered.

  The present invention was devised in view of the above circumstances, and the object of the present invention is to improve the peel strength with respect to the substrate and to provide the strength of the shield case even if the elastic contact piece is provided. An object of the present invention is to provide a shield case, a connector, and an electronic device that can suppress a decrease in EMI characteristics.

  In order to solve the above-mentioned problems, the shield case of the present invention is opposed to each other, and a mating connector can be inserted between the first and second ends in the insertion direction of the mating connector and intersects the first and second ends. A pair of inner wall portions each having a third end, a pair of elastic contact pieces partially cut and raised inside, and an inner wall portion formed to raise the elastic contact pieces on the inner wall portion. A pair of openings or notches, a first connecting part for connecting the third end of the inner wall part, and a first end of the inner wall part, which is connected to the second end side of the inner wall part A pair of folded portions, a pair of outer wall portions that are provided along the outer surface of the inner wall portion and are provided along the outer surface of the inner wall portion and cover the opening or notch portion, and the outer wall portion in the insertion direction. And a pair of first connecting legs provided on the side portion.

  According to the invention of this aspect, even if a mating connector is inserted into the front side portion of the shield case in the insertion direction and a load is applied to the shield case, the first connecting leg portion is placed on the front side portion of the outer wall portion. Therefore, as compared with the conventional example in which the connecting leg portion is located on the back side portion, it is possible to reduce the load applied to the solder connecting portion between the first connecting leg portion and the substrate. Therefore, the peel strength of the shield case with respect to the substrate can be improved. Moreover, since the outer wall portion is arranged along the outer surface of the inner wall portion and reinforces the inner wall portion, even if the inner wall portion is cut and raised to create an elastic contact piece, the strength of the shield case is reduced. Can be suppressed. Furthermore, since the outer wall covers the opening or notch of the inner wall, even if a part of the inner wall is raised to create the elastic contact piece, it is possible to suppress the deterioration of the EMI characteristics of the shield case. .

  The shield case may further include a second connecting portion. In this case, the outer wall portion has a first end facing the third end of the inner wall portion and a second end opposite to the first end. The second connecting portion connects between the second ends of the outer wall portions. In this case, at least the inner wall portion, the first connecting portion, and the second connecting portion define an accommodation space. According to the aspect of the invention, the strength of the shield case is improved because the third end of the inner wall portion is connected to the first connecting portion and the second end of the outer wall portion is connected to the second connecting portion. Can be made.

  The inner wall portion may further include a fourth end opposite to the third end. In this case, the second connecting portion may be configured to connect not the second end of the outer wall portion but the fourth end of the inner wall portion. According to such an aspect of the invention, since the third end of the inner wall portion is connected to the first connecting portion and the fourth end of the inner wall portion is connected to the second connecting portion, the strength of the shield case is improved. Can be made.

  The shield case may be configured to further include a cover portion that is connected to the second connection portion and closes an open portion on one side of the accommodation space in the insertion direction. According to the invention of such an aspect, since the open part of the accommodation space is closed by the cover part, it is possible to further improve the EMI characteristics of the shield case.

  The shield case may further include a pair of tabs that are connected to both ends of the cover portion or the second end of the inner wall portion and that extend along the outer surface of the outer wall portion. According to the invention of such an embodiment, the tab functions as a restraining portion by being along the outer surface of the outer wall portion. For this reason, the strength of the shield case can be further improved.

  It is possible to provide a locking projection on the outer wall and a locking recess or a locking hole for locking the locking projection on the tab. Alternatively, it is possible to provide a locking projection on the tab and a locking recess or a locking hole for locking the locking projection on the outer wall. According to the aspect of the invention, the tab is maintained along the outer surface of the outer wall portion by locking the locking convex portion with the locking concave portion or the locking hole. Therefore, there is an advantage in further improving the strength of the shield case.

  The shield case may further include a lock piece provided on at least one of the first and second connecting portions and capable of locking a mating connector inserted into the housing space. . According to such an aspect of the invention, the mating connector can be locked with the locking piece, so that the mating connector is securely connected, and as a result, the connection reliability of the connector using the shield case is improved. It becomes possible to make it.

  The outer wall portion can be provided with an escape hole communicating with the opening and having a smaller outer shape than the opening. In this case, when the elastic contact piece makes elastic contact with the mating connector, the distal end portion of the elastic contact piece is displaced outward and inserted into the escape hole. According to the invention of this aspect, although the escape hole is provided in the outer wall portion, the escape hole has a smaller outer shape than the opening, so that the shield is shielded compared to the conventional connector in which the opening is directly exposed to the outside. The EMI characteristics of the case can be improved.

  The shield case may further include a pair of second connection legs provided on a back side portion in the insertion direction of the outer wall portion. According to such an aspect of the invention, since the first and second connecting legs are solder-connected to the substrate, the peel strength of the shield case with respect to the substrate can be further improved.

  The connector of the present invention includes the shield case described above, an insulating body accommodated in the accommodation space, and a plurality of contacts arranged in the body.

  The electronic device of the present invention includes the connector as an external interface.

It is the perspective view represented from the front, the plane, and the right side of the receptacle connector which concerns on embodiment of this invention. It is the perspective view represented from the back surface, bottom surface, and right side surface side of the receptacle connector. It is a front view of the connector. It is a rear view of the connector. It is a top view of the connector. It is a bottom view of the connector. It is a right view of the connector. It is 4A-4A sectional drawing in FIG. 2A of the said connector. 4B is an explanatory view showing both the 4B-4B cross-sectional view of the connector in FIG. 2A and a schematic cross-sectional view of the mating plug before connection. FIG. 4C is an explanatory view of the connector along 4C-4C in FIG. 2A and a schematic cross-sectional view of the mating plug before connection. It is 5A-5A sectional drawing in FIG. 1A of the shield case of the said connector. It is 5B-5B sectional drawing in FIG. 1A of the shield case of the said connector. It is the perspective view represented from the front, the plane, and the right side of the body holding the first and second contacts of the connector. It is the perspective view represented from the front, bottom face, and left side of the body holding the first and second contacts of the connector. It is a typical top view of the board | substrate with which the said connector is mounted. It is a schematic front view which shows the example of a design change of the said connector.

  Hereinafter, a receptacle connector according to an embodiment of the present invention will be described with reference to FIGS. 1A to 7. A receptacle connector (hereinafter, “receptacle R”) shown in FIGS. 1A to 3C is mounted on a substrate 10 (see FIG. 7) of an electronic device (not shown) and used as an external interface of the electronic device. Thus, the plug connector for USB 3.0 (hereinafter, plug P) shown in FIGS. 4B and 4C can be connected. The receptacle R includes a shield case 100, a body 200, four first contacts 300a for USB 2.0, and five second contacts 300b for USB 3.0. Hereinafter, each part of the receptacle R will be described in detail. 4B to 5B, the insertion direction of the plug P is indicated by α.

  As shown in FIGS. 1A to 3C, 5A, and 5B, the shield case 100 is formed by press-molding a single metal plate having conductivity. The shield case 100 includes a pair of inner wall portions 110, a bottom plate portion 120 (first connection portion), a pair of folded portions 130, a pair of outer wall portions 140, a top plate portion 150 (second connection portion), A pair of first and second connecting legs 160a and 160b, a pair of pedestals 170, a cover 180, and a pair of tabs 190 are provided.

  The pair of inner wall portions 110 are substantially rectangular plate portions disposed so as to face each other, and a plug P can be inserted therebetween. As shown in FIGS. 5A and 5B, an elastic contact piece 111 is provided on the front side portion of each inner wall portion 110 in the insertion direction α. The elastic contact piece 111 is a piece member in which a part of the front side portion is cut and raised inward, and extends toward the front side in the insertion direction α and is inclined inward. The distal end portion of the elastic contact piece 111 is curved in an approximately V shape in plan view. The distance between the tops of both elastic contact pieces 111 is slightly smaller than the distance between both side surfaces of the shell P1 of the plug P. A substantially rectangular opening 112 is formed around the elastic contact piece 111 in the front side portion. The opening 112 is formed as a result of cutting the periphery of the elastic contact piece 111 in the front side portion in order to cut and raise the elastic contact piece 111. In addition, a guide groove 113 extending in the insertion direction α is provided on the inner side of each inner wall 110 in the insertion direction α. A locking piece 114 is provided below the guide groove 113 in the back side portion. The locking piece 114 is also a piece member in which a part of the back side portion is cut and raised, and extends to the near side in the insertion direction α and is inclined inward. A substantially rectangular opening 115 is formed around the locking piece 114 at the back side portion. The opening 115 is formed as a result of cutting the periphery of the locking piece 114 in the back side portion in order to cut and raise the locking piece 114. In addition, the front end 110a on the near side in the insertion direction α of each inner wall 110 and the rear end 110b on the back side are the first and second ends and the lower end 110c in the insertion direction of the inner wall in the claims, and the front end 110a and the rear end. A third end that intersects 110b at a right angle and an upper end 110d are a fourth end opposite to the lower end 110c.

  As shown in FIG. 5B, the bottom plate portion 120 has a pair of connecting plates 121 and 122. The connecting plate 121 is a rectangular plate that is connected to the front side portion of the lower end 110 c of one inner wall 110 and is bent at a substantially right angle with respect to the inner wall 110. The connecting plate 122 is a rectangular plate that is connected to the front side portion of the lower end 110 c of the other inner wall portion 110 and is bent at a substantially right angle with respect to the inner wall portion 110. The inner end portions of the connecting portions 121 and 122 have an uneven shape like a jigsaw puzzle piece, and are fitted and crimped to each other. Thus, the bottom plate part 120 connects the lower ends 110c of the inner wall parts 110 by connecting the inner ends of the connecting parts 121 and 122. In addition, lock pieces 121 a and 122 a are provided at the center of the connecting portions 121 and 122. The lock pieces 121a and 122a are piece members obtained by cutting and raising part of the central portions of the connecting portions 121 and 122, and extend to the front side in the insertion direction α and are inclined upward. The locking pieces 121a and 122a can be locked in a pair of lower locking holes of the shell P1 of the plug P inserted into the insertion hole S1 described later. In addition, on the inner portions of the rear ends of the connecting portions 121 and 122, fitting convex portions 121b and 122b that are convex in the insertion direction α are provided.

  As shown in FIGS. 5A and 5B, each folded portion 130 is connected to the front end 110a of the inner wall portion 110 and folded back to the outside and rear side (that is, the rear end 110b side of the inner wall portion 110). It is a character-shaped board part. The inner end portion of the folded portion 130 is continuous with the front end 110 a of the inner wall portion 110, and the outer end portion of the folded portion 130 is continuous with the front end of the outer wall portion 140.

  As shown in FIGS. 5A and 5B, each outer wall portion 140 is a rectangular plate portion whose outer shape is slightly larger than that of the inner wall portion 110. The outer wall portion 140 is disposed along the outer surface of the inner wall portion 110 and is in contact with the outer surface of the inner wall portion 110. Further, the outer wall portion 140 covers the openings 112 and 115 and the guide groove 113 of the inner wall portion 110. A substantially rectangular relief hole 141 is provided at a position on the front side of the outer wall 140 in the insertion direction α at a position where the tip of the elastic contact piece 111 faces through the opening 112. The outer shape of the escape hole 141 is smaller than the outer shape of the opening 112 of the inner wall portion 110 and slightly larger than the outer shape of the distal end portion of the elastic contact piece 111. That is, the escape hole 141 can be inserted through the opening 112 at the tip of the elastic contact piece 111. Note that the lower end 140a of the outer wall 140 is a first end opposite to the third end (that is, the lower end 110c) of the inner wall of the outer wall in the claims, and the upper end 140b is a second end opposite to the first end. It is.

  At the lower end 140a of each outer wall portion 140, a first connection leg 160a is suspended from the front portion in the insertion direction α, and a second connection leg 160b is suspended from the back portion in the insertion direction α. The first and second connecting legs 160a and 160b are inwardly bent pieces for DIP soldering and can be soldered to the first and second through holes 11 and 12 of the substrate 10 shown in FIG. It has become. The shield case 100 is connected to the ground of the substrate 10 through the first and second through holes 11 and 12. A rectangular pedestal 170 is provided between the first and second connecting legs 160a and 160b at the lower end 140a of the outer wall 140. The height position of the lower end of the pedestal portion 170 coincides with the height position of the lower end of the main body portion 210 of the body 200 as shown in FIGS. 4B and 4C. That is, the pedestal 150 is a part that is placed on the substrate 10 together with the main body 210 of the body 200.

  As shown in FIG. 1A, the top plate portion 150 is a rectangular plate portion that connects the upper ends 140b of both outer wall portions 140. The top plate portion 150, the pair of inner wall portions 110, and the bottom plate portion 120 define an accommodation space S for accommodating the body 200 (see FIGS. 5A and 5B). Further, in the accommodation space S, the near side portions of the pair of inner wall portions 110, the bottom plate portion 120, the near side portion in the insertion direction α of the top plate portion 150, and the front surface (front surface of the body) of the main body portion 210 of the body 200. The partitioned space is the insertion hole S1 (see FIGS. 4A to 4C). The plug P can be inserted into the insertion hole S1 along the insertion direction α. A pair of lock pieces 151 are provided on the front side portion of the top plate 150. The lock piece 151 is a piece member in which a part of the front side portion of the top plate portion 150 is cut and raised, and extends to the front side in the insertion direction α and is inclined downward. Further, an elastic contact piece 152 is provided between the lock pieces 151 in the front side portion. The elastic contact piece 152 is a piece member in which a part of the front side portion is cut and raised, and extends to the back side in the insertion direction α and is inclined downward. The lock pieces 151 can be respectively locked in the pair of upper locking holes of the shell P1 of the plug P inserted into the insertion hole S1. The elastic contact piece 152 can be elastically contacted with the upper surface of the shell P1 of the plug P inserted into the insertion hole S1. Further, a pair of stopper projections 153 are provided on the inner side of the top plate 150 in the insertion direction α.

  As shown in FIGS. 4B to 5B, the cover portion 180 is a rectangular plate portion that is connected to the rear end of the top plate portion 150 and is bent at a substantially right angle with respect to the top plate portion 150. The width dimension of the cover part 180 is slightly larger than the linear distance between the outer surfaces of the outer wall part 140, and the height dimension of the cover part 180 is substantially the same as the linear distance from the upper surface of the top plate part 150 to the lower surface of the bottom plate part 120. It has become. The cover portion 180 closes the open portion on the rear side (one side) in the insertion direction α of the accommodation space S and covers the rear surface (rear surface of the body 200) of the main body portion 210 of the body 200. A pair of tabs 190 are connected to both ends of the cover portion 180 in the width direction. Each tab 190 is a rectangular plate portion bent at a substantially right angle with respect to the cover portion 180 and is in contact with the outer surface along the outer surface of the outer side portion of the outer wall portion 140 in the insertion direction α. A rectangular locking recess 191 is provided at the lower end of the tab 190. On the other hand, a locking projection 142 is provided at a position corresponding to the locking recess 191 on the back side of each outer wall 140. The locking convex portion 142 is a single member obtained by cutting and raising a part of the back side portion of the outer wall portion 140 to the outside, and is fitted in the locking concave portion 191. Thereby, the state in which the tab 190 followed the outer surface of the back | inner side part of the outer wall part 140 is maintained.

  The body 200 is an injection molded product made of insulating resin. As shown in FIGS. 6A and 6B, the body 200 has a substantially rectangular main body 210 and a plate-like convex portion 220 protruding from the center of the front surface of the main body 210. . The main body 210 is accommodated in the back space in the insertion direction α of the accommodation space S of the shield case 100, and the convex portion 220 is accommodated in the front space in the insertion direction α of the accommodation space S (that is, the insertion hole S 1). . A pair of guide convex portions 211 extending in the insertion direction α is provided at the upper end portions of both side surfaces in the width direction of the main body portion 210. Locking grooves 212 extending in the vertical direction are provided below the guide convex portions 211 on the both side surfaces of the main body 210. A pair of recesses 213 is provided at the upper end of the front surface of the main body 210. At the lower end of the front surface of the main body 210, a plate-like support 214 that is convex forward (on the front side in the insertion direction α) is provided. A rectangular fitting recess 215 is provided at the upper center of the support portion 214 on the front surface of the main body 210.

  As shown in FIGS. 4A to 4C, the guide convex portion 211 is inserted into the guide groove 113 of the inner wall portion 110 of the shield case 100 movably in the insertion direction α, and the concave portion 213 has the top plate portion 150 of the shield case 100. The projection 153 is fitted, the fitting convex portions 121 b and 122 b of the bottom plate portion 120 are fitted to the fitting concave portion 215, the locking piece 114 of the shield case 100 is locked to the locking groove 212, and the support portion 214. Supports the bottom plate portion 120 of the shield case 100. Further, the rear surface of the main body part 210 is in contact with the cover part 180 of the shield case 100. That is, the main body 210 is sandwiched between the projection 153 of the top plate 150 and the rear end surface of the bottom plate 120 of the shield case 100 and the cover 180, and the guide convex portion 211 is engaged with the guide groove 113. The engaging piece 114 is fitted into the retaining groove 212 and the fitting convex portions 121 b and 122 b of the bottom plate portion 120 are fitted into the fitting concave portion 215, whereby the main body portion 210 is in the back space of the housing space S of the shield case 100. The position is fixed.

  In the central portion of the main body 210, four through holes 216 that penetrate in the insertion direction α are arranged at predetermined intervals in the width direction. Further, four receiving grooves 217 are provided on the rear surface of the main body 210 at the same interval as the through holes 216. The housing groove 217 communicates with the through hole 216. Four accommodating recesses 221 are provided on the upper surface of the protrusion 220 at the same interval as the through holes 216. The housing recess 221 communicates with the through hole 216. Further, as shown in FIG. 4B, the accommodation recess 221 is constant after the depth dimension increases for a while toward the near side in the insertion direction α. A stopper part 221a projects from the edge of the housing recess 221 on the near side in the insertion direction α. Five substantially rectangular holes 222 are provided on the front side end in the insertion direction α on the upper surface of the convex portion 220. The accommodating recess 221 and the hole 222 are staggered.

  As shown in FIGS. 4A to 4C, the first and second contacts 300 a and 300 b are arranged in a staggered manner in the width direction in the upper and lower rows in the body 200. As shown in FIG. 4B, each first contact 300a is a substantially L-shaped metal plate having conductivity, and has a movable part 310a, a fixed part 320a, a hanging part 330a, and a tail part 340a. is doing. The fixing portion 320a is a plate portion that is slightly wider than the through-hole 216 of the body 200, and is press-fitted into the through-hole 216 from behind and fixed. The movable portion 310a is a long plate portion that is connected to the front end portion in the insertion direction α of the fixed portion 320a, and is accommodated in the accommodating recess 221 of the body 200 so as to be movable up and down. The distal end portion of the movable portion 310a is bent upward in a V-shape, and the distal end elastically abuts against the contact stop portion 221a of the housing recess 221 from below. The drooping portion 330a is a long plate portion that is connected to the end on the far side in the insertion direction α of the fixing portion 320a and is bent substantially at right angles to the fixing portion 320a. Is housed in. The tail portion 340 a is a linear pin that is connected to the lower end of the drooping portion 330 a and protrudes from the lower surface of the main body portion 210 of the body 200, and can be soldered to the third through hole 13 of the substrate 10. . The first contact 300 a is connected to the signal line of the substrate 10 through the third through hole 13.

  As shown in FIG. 4C, each second contact 300b is a substantially L-shaped metal plate having conductivity, and has a contact portion 310b, a fixing portion 320b, and a tail portion 330b. The fixing part 320 b is a substantially L-shaped plate part embedded in the main body part 210 and the convex part 220 of the body 200. The contact portion 310 b is a substantially L-shaped plate portion that is connected to the front end portion in the insertion direction α of the fixing portion 320 b, and the tip portion is exposed from the hole portion 222 of the body 200. The tail portion 330b is a straight pin that is connected to the lower end of the fixing portion 320b and protrudes from the lower surface of the main body portion 210 of the body 200, and can be soldered to the fourth through hole 14 of the substrate 10. The second contact 300 b is connected to another signal line of the substrate 10 through the fourth through hole 14.

  Hereinafter, a procedure for assembling the receptacle R configured as described above will be described in detail. First, the first and second contacts 300a and 300b are formed by press molding a conductive metal plate. Thereafter, the body 200 in which the rear end portion of the contact portion 310b of the second contact 300b and the fixing portion 320b are embedded by insert molding is prepared. At the time of press molding, the tip of the contact portion 310 b is exposed from the hole 222 of the body 200. Thereafter, when the movable portions 310a of the first contacts 300a are respectively inserted into the through holes 216 of the body 200 from the rear, and the fixed portions 320a are press-fitted into the through holes 216, the movable portions 310a are inserted into the housing recesses 221 of the body 200, The hanging portion 330 a is received in the receiving groove 217 of the body 200. At this time, the tip of the movable portion 310a elastically abuts against the stopper portion 221a of the housing recess 221 from below. By repeating this, all the first contacts 300 a are fixed to the body 200.

  Thereafter, a single metal plate having conductivity is press-molded to prepare a shield case 100 in which the cover portion 180 is linear with respect to the top plate portion 150. Thereafter, the body 200 is inserted into the housing space S of the shield case 100 from behind while the guide convex portion 211 of the body 200 is inserted into the guide groove 113 of the shield case 100. Then, the protrusion 153 of the top plate portion 150 of the shield case 100 is fitted into the concave portion 213 of the body 200, and the fitting convex portions 121 b and 122 b of the bottom plate portion 120 are fitted into the fitting concave portion 215 of the body 200. The locking piece 114 of the shield case 100 is locked in the locking groove 212, and the support portion 214 of the body 200 abuts against the bottom plate portion 120 of the shield case 100 from below. At this time, the convex portion 220 of the body 200 is inserted into the insertion hole S1 of the accommodation space S. Thereafter, the cover portion 180 of the shield case 100 is bent at a substantially right angle with respect to the top plate portion 150 and brought into contact with the rear surface of the body 200. At this time, the tab 190 of the shield case 100 abuts on the outer surface of the back side portion of the outer wall portion 140, and the locking convex portion 142 of the outer wall portion 140 is fitted into the locking concave portion 191 of the tab 190.

  Hereinafter, the receptacle R assembled in this way is mounted on the substrate 10. Specifically, the pair of first and second connection legs 160 a and 160 b of the receptacle R are inserted into the pair of first and second through holes 11 and 12, respectively. At the same time, the tail portions 340a and 330b of the first and second contacts 300a and 300b of the receptacle R are inserted into the third and fourth through holes 13 and 14 of the substrate 10, respectively. In this state, the first and second connecting legs 160a and 160b are soldered to the first and second through holes 11 and 12, respectively, and the tail portions 340a and 330b are soldered to the third and fourth through holes 13 and 14, respectively. .

  Hereinafter, a method for connecting the plug P to the receptacle R mounted on the substrate 10 in this manner will be described, and the operation of each part of the receptacle R will be described. The connecting portion on the distal end side of the plug P is configured such that a body in which first and second contacts for USB 3.0 and 2.0 are arranged in a rectangular tube-shaped conductive metal shell P1 is accommodated. It has become.

  When the connecting portion of the plug P is inserted into the insertion hole S1 of the receptacle R, the first contact P2a of the plug P is connected to the movable portion 310a of the first contact 300a of the receptacle R, and the second contact P2b of the plug P is connected to the receptacle R. Each of the contact portions 310b of the second contact 300b is elastically contacted. At this time, the locking pieces 121a and 122a of the receptacle R are respectively locked to the pair of lower locking holes of the shell P1 of the plug P, and the locking piece 151 is locked to the pair of upper locking holes of the shell P1 of the plug P. The state where P is connected to the receptacle R is maintained. At the same time, the tip ends of the pair of elastic contact pieces 111 of the receptacle R are in elastic contact with both side surfaces in the width direction of the shell P1 of the plug P, and the elastic contact pieces 152 are in elastic contact with the upper surface of the shell P1. As a result, the shell P <b> 1 is electrically connected to the shield case 100 and is connected to the ground of the substrate 10 through the shield case 100.

  When the distal end portion of the elastic contact piece 111 elastically contacts the both side surfaces of the shell P1 of the plug P, the elastic contact piece 111 is elastically deformed, the distal end portion is displaced outward, and the outer wall passes through the opening 112 of the inner wall portion 110. The part 140 is inserted into the escape hole 141. When the elastic contact piece 152 also elastically contacts the upper surface of the shell P1, the elastic contact piece 152 is elastically deformed upward and the tip portion is displaced upward.

  In the case of such a receptacle R, since the first connecting leg portion 160a is provided on the front side portion of the outer wall portion 140 of the shield case 100, the connecting portion of the plug P is inserted into the insertion hole S1, Even when a load is applied to the receptacle R, the load applied to the solder connecting portion between the first connecting leg 160a and the substrate 10 is reduced as compared with the conventional example in which the connecting leg is located in the back side portion. Can be achieved. Moreover, a second connection leg 160b is provided on the back side of the outer wall 140. Therefore, the peel strength of the receptacle R with respect to the substrate 10 can be improved.

  In addition, the outer wall portion 140 is disposed along the outer surface of the inner wall portion 110, reinforces the inner wall portion 110, and the tab 190 is disposed along the outer surface of the back side portion of the outer wall portion 140. The portion 110 is reinforced. Therefore, even if it cuts and raises the elastic contact piece 111 grade | etc., In the inner wall part 110, the strength reduction of the shield case 100 can be suppressed. In addition, since the upper end 140b of the outer wall part 140 is connected by the top plate part 150, the strength (including the twisting strength) of the shield case 100 can be improved. Furthermore, since the outer wall portion 140 covers the openings 112 and 115 of the inner wall portion 110, even if the elastic contact piece 111 or the like is cut and raised on the inner wall portion 110, the deterioration of the EMI characteristics of the shield case 100 is suppressed. Can do.

  Note that the receptacle R and the shield case 100 described above are not limited in the above embodiment, and can be arbitrarily changed in design within the scope of the claims. Details will be described below.

  In the above embodiment, the outer wall portion is in contact with the inner wall portion, but the outer wall portion may be disposed along the inner wall portion to such an extent that the strength of the inner wall portion can be reinforced. For example, the outer wall portion may be arranged with a slight gap in the inner wall portion, and may be supported in contact with the outer wall portion when the inner wall portion bends. In the above embodiment, the opening is formed as a result of the elastic contact piece being cut and raised in the inner wall, but the design can be changed so that a notch or the like is formed instead of the opening. is there. Even when the notch portion is formed in the inner wall portion, the outer wall portion is arranged along the inner wall portion, so that the strength reduction of the shield case can be suppressed and the EMI characteristics of the shield case can be reduced. The decrease can also be suppressed. Moreover, in the said embodiment, although the escape hole was provided in the outer wall part, when the displacement amount of the front-end | tip part of an elastic contact piece is small, an escape hole can be abbreviate | omitted.

  In the above embodiment, the folded portion is connected to the front end of the inner wall portion and folded to the rear end side. However, the folded portion is connected to the rear end of the inner wall portion and folded to the front end side. It is possible. In other words, the first end in the insertion direction of the inner wall portion in the claims can be the rear end of the inner wall portion, and the second end of the inner wall portion can be the front end.

  In the above embodiment, the first and second connecting legs are suspended from the lower end of the outer wall, but at least the first connecting legs are provided on the front side of the outer wall in the insertion direction. It is possible to change the design as long as possible. Therefore, the first and second connecting legs do not need to be suspended from the lower end of the outer wall, and are a part of the outer wall (for example, a portion that does not cover the opening of the inner wall or the notch). You may make it cut and raise. Furthermore, although the first and second connecting legs are DIP soldering pieces, the SMT legs that are bent substantially at right angles to the outer wall and can be connected to the electrodes on the substrate It is also possible to do. Similarly, the tail portions of the first and second contacts can be bent at substantially right angles to form SMT legs that can be connected to electrodes on the substrate. The first and second connecting legs can be provided not on the outer wall but on the tab.

  In the said embodiment, although the top-plate part has connected the upper end of the outer wall part, it is not limited to this. For example, as shown in FIG. 8, the design can be changed so that the top plate 150 'connects between the upper ends 110d' of the inner wall 110 '. In this case, the top plate portion 150 ′, the inner wall portion 110 ′, and the bottom plate portion 120 define the housing space S, and the front surface of the top plate portion 150 ′, the inner wall portion 110 ′, the bottom plate portion 120, and the body 200 has the insertion hole S1. It is partitioned. The accommodation space S is not defined only by the top plate portion, the inner wall portion, and the bottom plate portion. When the shape of the opening or notch portion of the inner wall portion is large, the top plate portion, the inner wall portion, the outer wall portion, and It is also possible to change the design so that it is partitioned by the bottom plate portion, and it is also possible to change the design of the insertion hole S1 so that it is partitioned by adding the outer wall portion. It is also possible to omit the top plate. In this case, for example, an internal frame of the electronic device can be used instead of the top plate. Moreover, in the said embodiment, although the bottom plate part consists of two connection plates and inner side edge parts fit, it is not limited to this. For example, it is possible to form the top plate portion with two connecting plates and to join the inner end portions.

  In the above embodiment, the lock pieces are provided on the top plate portion and the bottom plate portion. However, the lock pieces may be provided only on either the top plate portion or the bottom plate portion, and both may be omitted. Is possible. Moreover, in the said embodiment, although the elastic contact piece was provided also in the baseplate part, it is omissible.

  In the said embodiment, although the cover part closed the back of the storage space S, it is not limited to this, A cover part can also be abbreviate | omitted. When the cover part is omitted, the tab is also omitted. Moreover, in the said embodiment, although the tab was provided in the both ends of the width direction of a cover part, it is provided in the 2nd end of an inner wall part, it folds in the 1st end side, and follows the outer surface of an outer wall part. It is also possible to arrange them.

  In the above embodiment, the tab is provided with the locking concave portion and the outer wall portion is provided with the locking convex portion. However, the tab can be provided with the locking convex portion and the outer wall portion can be provided with the locking concave portion. Moreover, it is also possible to change the design so that the locking concave portion is replaced with the locking hole and the locking convex portion is locked to the locking hole. The locking projection is not limited to a rounded piece, and can be arbitrarily changed in design as long as it has a protruding shape.

  In the above embodiment, the receptacle includes the first and second contacts. However, it is sufficient that the receptacle includes at least one type of contact. In the above embodiment, the body has a main body portion and a convex portion. However, the shape of the body can be changed to any shape as long as the body can be accommodated in the shielding space and can hold the contact. It doesn't matter.

  In the above-described embodiment, the materials, shapes, dimensions, arrangement, etc. constituting each part of the shield case, the body, and the contact are examples, and the design can be arbitrarily changed as long as the same function can be realized. Is possible. In the above embodiment, the present invention has been described by taking the receptacle connector for Std-USB as an example. However, the present invention can also be applied to other receptacle connectors and plug connectors. When the present invention is applied to a plug connector, for example, a cable may be connected to an end portion of a substrate on which a shield case is mounted.

R ... Receptacle 100 ... Shield case 110 ... Inner wall 110a / Front end (first end)
110b · Rear end (second end)
110c, lower end (third end)
110d ・ Upper end (4th end)
111 .. Elastic contact piece 112 .. Opening 113 .. Guide groove 114 .. Locking piece 115 .. Opening 120... Bottom plate portion 121 a, 122 a Lock piece 130.・ Lower end (first end)
140b-upper end (second end)
141 .. Relief hole 142 .. Locking convex part 150 .. Top plate part
151 .. Lock piece 152 .. Elastic contact piece 153 .. Protrusion 160a .. First connection leg 160b .. Second connection leg 170 ... Base 180 ... Cover 190 ... Tab 191 .. Locking recess S.... Storage space S1... Insertion hole 200... Body 210... Body portion 220 ... Protrusion portion 300 a ... First contact 310 a. .. Fixing part 330a .. Hanging part 340a .. Tail part 300b ... Second contact 310b ... Contact part 320b ... Fixing part 330b ... Tail part alpha ... Insertion direction 10 ...・ Boards 11-14 ・ First to fourth through holes P ・ ・ ・ Plug P1 ・ ・ Shell

Claims (12)

A pair of inner wall portions, each of which has a first end and a second end in the insertion direction of the counterpart connector and a third end intersecting the first and second ends;
A pair of elastic contact pieces in which a part of the inner wall portion is cut and raised inward;
A pair of openings or notches formed to cut up the elastic contact piece on the inner wall, and
A first connecting part for connecting the third ends of the inner wall part;
A pair of folded portions connected to the first end of the inner wall portion and folded back to the second end side of the inner wall portion;
A pair of outer wall portions that are connected to the folded portion and are arranged along the outer surface of the inner wall portion and cover the opening or the notch portion;
A shield case comprising a pair of first connecting legs provided on a front side portion of the outer wall in the insertion direction. The shield case according to claim 1,
A second connecting portion;
The outer wall portion has a first end facing the third end of the inner wall portion and a second end opposite to the first end.
The second connecting part connects between the second ends of the outer wall part,
A shield case in which at least the inner wall portion, the first connecting portion, and the second connecting portion define an accommodation space. The shield case according to claim 1,
A second connecting portion;
The inner wall portion further has a fourth end opposite to the third end,
The second connecting part connects between the fourth ends of the inner wall part,
A shield case in which at least the inner wall portion, the first connecting portion, and the second connecting portion define an accommodation space. In the shield case according to claim 2 or 3,
The shield case further provided with the cover part which is connected with the said 2nd connection part, and obstruct | occludes the opening part of the one side of the said insertion direction of the said accommodation space. The shield case according to claim 4,
A shield case further comprising a pair of tabs that are connected to both ends of the cover part or the second end of the inner wall part and extend along the outer surface of the outer wall part. The shield case according to claim 5,
The outer wall is provided with a locking projection,
A shield case in which the tab is provided with a locking recess or a locking hole for locking the locking projection. The shield case according to claim 5,
The tab is provided with a locking projection,
A shield case in which the outer wall portion is provided with a locking recess or a locking hole for locking the locking projection. The shield case according to any one of claims 2 to 7,
A shield case further comprising a lock piece provided on at least one of the first and second connecting portions and capable of locking a mating connector inserted into the housing space. The shield case according to any one of claims 2 to 8,
The outer wall portion is provided with a relief hole communicating with the opening and having an outer shape smaller than the opening,
When the elastic contact piece makes elastic contact with a mating connector, the tip of the elastic contact piece is displaced outward and inserted into the escape hole. The shield case according to any one of claims 2 to 9,
A shield case further comprising a pair of second connection legs provided on a back side portion of the outer wall in the insertion direction. A shield case according to any one of claims 2 to 10,
An insulating body housed in the housing space;
A connector having a plurality of contacts arranged in the body.   An electronic device comprising the connector according to claim 11 as an external interface.

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