JP5672459B2 - Card connector - Google Patents

Description

  The present invention relates to a card connector capable of connecting a plurality of cards such as an IC card and a flash memory card in a multistage arrangement.

  Conventionally, in electronic devices such as mobile phones and digital cameras, it is known to use a plurality of cards, for example, an IC card and a flash memory card as external storage media. At the same time, a so-called two-slot type card connector is used as a card connector for connecting to a printed wiring board in an electronic device.

  The two-slot type card connector 1 includes a housing 4 in which card insertion portions 2 and 3 into which cards are inserted are arranged in two upper and lower stages, and each card insertion portion 2 and 3 exposed in each card insertion portion 2 and 3. Are connected to the printed wiring board C at the same time. (See, for example, Patent Document 1).

  For example, as shown in FIG. 15A, the housing 4 constituting the card connector 1 includes a lower case body 7 having a bottom plate portion 7 a made of an insulating resin material that constitutes the inner bottom portion of the lower card insertion portion 3. And an upper case body 8 formed with a space constituting the upper card insertion portion 2, and the upper case body 8 is joined and integrated on the lower case body 7 so that the card is inserted into the upper and lower two-tier arrangement. The parts 2 and 3 are arranged.

  Further, the upper contacts 5, 5... That come into contact with the card inserted into the upper card insertion portion 2 extend from one end of the fixed piece fixed to the bottom plate portion of the upper case body 8 toward the substrate side. The connection piece piece 5b, which is provided with a shape of the extension piece 5a and is integrally formed at the lower end of the extension piece 5a, is connected to the connection pattern of the printed wiring board P by soldering or the like.

JP 2010-267601 A

  However, in the conventional technology as described above, as shown in FIG. 15B, when heated by reflow work or the like, warping occurs in the bottom plate portion 7a of the lower case body constituting the bottom portion of the lower card insertion portion 3. In this case, the warp of the bottom plate portion 7a lifts the upper-stage bottom plate portion 8a through the side wall portion of the lower case body 7, and thereby the coplanarity of the contacts 5, 5. , The uniformity of the connection state of the contact connection terminal pieces 5b, 5b... To the printed wiring board P is impaired, which may cause a contact failure.

  In addition, when each part constituting the housing is deformed by heating such as reflow work, the deformation affects each other, and the tendency of the uniformity of the connection state of each contact to the printed wiring board is remarkable. Become.

  Furthermore, if the structure is such that the card insertion portion is formed in a multi-stage arrangement by incorporating a plurality of parts in an overlapping arrangement, the tolerances in the connector thickness direction of each part will accumulate, so each part will be considered in consideration of the accumulated tolerance. There is also a problem that high accuracy is required and production cost increases accordingly.

  Therefore, in view of such a conventional problem, the present invention has been made for the purpose of providing a card connector capable of obtaining a stable connection state of each contact even when heated by reflow work or the like.

The feature of the invention according to claim 1 for solving the conventional problem as described above is that a housing having a plurality of card insertion portions into which a card body is inserted in a multi-stage arrangement, and each card supported by the housing. A card connector that protrudes into the insertion portion and includes a plurality of contacts that contact a signal transmission terminal of the card body inserted into each of the card insertion portions, and is capable of connecting the plurality of card bodies to each other in parallel arrangement, The housing is configured by arranging a plurality of housing bodies each having the card insertion portion in multiple stages, and each housing body includes an independent support portion that comes into contact with the surface of the substrate, and the housing is provided via the independent support portion. Each housing body is supported by the substrate, and a clearance is provided between the housing bodies, so that the independent support of the housing body arranged in the upper stage is provided . The holding portion is configured with a support leg protruding from the lower surface of the housing body, and the support leg is disposed on the lower surface of the housing through an insertion portion formed in the housing body disposed on the lower side. There is.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the housing body includes a case main body having a bottom plate portion made of an insulating resin material that constitutes an inner bottom portion of the card insertion portion, and the bottom plate. Formed by incorporating a shield cover having a top plate portion in an opposing arrangement spaced apart from each other, the case main body and the shield cover each having the independent support portion, and the upper end surface of the case main body and the top plate This is to provide a clearance between them.

According to a third aspect of the present invention, in addition to the structure of the first or second aspect , the contact supported by the housing body arranged in the upper stage is an extension of the shape extending from the bottom plate portion toward the substrate side. A board connecting terminal portion having a protruding portion is provided, and the board connecting terminal portion serves as the independent support portion.

  As described above, the card connector according to the present invention includes a housing having a plurality of card insertion portions into which a card body is inserted in a multi-stage arrangement, and is supported by the housing and protrudes into each card insertion portion. A plurality of contacts that contact the signal transmission terminals of the card body inserted into the card unit, the card connectors being capable of connecting the plurality of card bodies to each other in parallel arrangement, wherein the housing includes the card insertion part. The plurality of housing bodies are arranged in multiple stages, and each housing body includes an independent support portion that comes into contact with the surface of the substrate, and is supported by the substrate for each housing body via the independent support portion. In addition, by providing a clearance between the housing bodies, the housing bodies can be heated by reflow work. Tolerance Jill deformation and the housings body can eliminate the influence of the housing body mutually, high coplanarity, i.e., it is possible to secure uniformity of the connection state with respect to the printed circuit board contacts.

  Further, in the present invention, the housing body includes a case main body having a bottom plate portion made of an insulating resin material that constitutes an inner bottom portion of the card insertion portion, and a top plate portion that is disposed opposite to the bottom plate portion. It is formed by incorporating a shield cover, and the case body and the shield cover are each provided with the independent support part, and by providing a clearance between the upper end surface of the case body and the top plate part, The influence which the deformation | transformation which arises in each part between each part which comprises a connector, and the tolerance of each part has on other parts can be excluded.

  Furthermore, in the present invention, the independent support portion of the housing body arranged in the upper stage is configured with a support leg protruding from the lower surface of the housing body, and the support leg is formed in the housing body arranged on the lower stage side. By being arranged on the lower surface of the housing through the inserted portion, the housing body arranged on the upper stage side can be supported on the printed wiring board in a stable state.

  Furthermore, in the present invention, the contact supported by the housing body arranged in the upper stage includes a board connection terminal portion having an extending portion having a shape extending from the bottom plate portion toward the wiring board side. By using the connection terminal portion as the independent support portion, the independent support portion can be configured with a simple structure.

It is a perspective view which shows an example of the card connector which concerns on this invention. It is the perspective view seen from the lower side same as the above. It is an enlarged vertical sectional view same as the above. It is an exploded perspective view same as the above. (A), (b) is a bottom view which shows an example of a card | curd, respectively. (A) is a perspective view which shows the lower case main body in FIG. 1, (b) is the perspective view seen from the same lower side. It is a perspective view which shows arrangement | positioning of each lower stage contact in FIG. (A) is a perspective view which shows a lower shield cover, (b) is the perspective view seen from the same lower side. (A) is the perspective view which shows the upper stage case main body in FIG. 1, (b) is the perspective view seen from the lower side. It is a perspective view which shows arrangement | positioning of the upper stage connector in FIG. (A) is a perspective view which shows an upper shield cover, (b) is the perspective view seen from the same lower side. It is the elements on larger scale AA which show the attachment state to the printed wiring board of the card connector in FIG. It is a partial expanded BB sectional view same as the above. It is a partial expanded CC sectional view taken on the line. (A) is a front view schematically showing a conventional two-slot card connector, and (b) is a front view showing a state deformed by heating or the like by the reflow operation.

  Next, an embodiment of the card connector according to the present invention will be described based on the embodiment shown in FIGS. In the figure, reference numeral 10 is a card connector, reference numerals A and B are card bodies each having the same overall card length, and P is a printed wiring board to which the card connector 10 is connected.

  The card connector 10 protrudes into the housing 13 having a plurality of card insertion portions 11 and 12 into which the card bodies A and B are inserted, and the card insertion portions 11 and 12. And a plurality of contacts having elastic contact pieces that come into contact with the signal transmission terminals of the card bodies A and B inserted into the card body, and the plurality of card bodies A and B are electrically and simultaneously printed via these contacts. P can be connected.

  One card body A is, for example, a small flash memory card as shown in FIG. 5 (a), and is formed in a rectangular shape having a long card overall length compared to the entire card width, and one end in the card full length direction. In addition, it has a narrowed portion Aa having a narrower card width than other portions.

  The reduced width portion Aa is arranged so as to be shifted to one side in the card width direction, and a plurality of signal terminals a1, a1,... Are arranged side by side.

  Further, on this one card body A, a thickened portion Ab having a shape raised on the opposite side to the surface on which the signal terminal is formed is formed at the end opposite to the reduced width portion Aa in the full length direction of the card. Has been.

  The other card body B is, for example, an IC card as shown in FIG. 5B, and is formed in a rectangular shape having a long card length as compared with the entire card width. In the figure, reference numeral Ba denotes a positioning portion having a shape cut out in an oblique direction at one corner of a rectangular shape.

  On one side of the card body B, a pair of signal terminal rows in which a plurality of signal terminals b1, b1... Are arranged in the card width direction are formed in parallel with a gap in the card overall length direction.

  As shown in FIGS. 1 to 4, the housing 13 includes a lower housing body 14 and an upper housing body 15 each having card insertion portions 11 and 12, and the housing bodies 14 and 15 are arranged in two upper and lower stages. It is constituted by.

  Each of the lower housing body 14 and the upper housing body 15 includes an independent support portion that comes into contact with the surface of the printed wiring board P, and the printed wiring board P is independently provided for each of the housing bodies 14 and 15 via the independent support portion. And a clearance c <b> 1 is provided between the housing bodies 14 and 15.

  The lower housing body 14 has a card body insertion direction by combining a lower case body 20 molded with an insulating synthetic resin and a lower shield cover 21 made of a conductive metal plate covering the upper surface and side surfaces thereof. It is formed in a hollow shape with an open front end.

  The lower case body 20 and the lower shield cover 21 are each provided with an independent support portion that abuts the printed wiring board P. The lower case body 20 and the lower shield cover 21 are independently supported by the printed wiring board P via the independent support portion. A clearance c <b> 2 is provided between the upper end surface of the main body 20 and the top plate portion 21 a of the lower shield cover 21.

  As shown in FIG. 6, the lower case body 20 includes a flat bottom plate portion 22 and side wall portions 23 and 23 that are raised from both side edges of the bottom plate portion 22, and the upper surface side is recessed on the bottom plate portion 22. An elliptical card body insertion portion 11 is formed, and an upper surface portion thereof is covered with a top plate portion 21 a of the lower shield cover 21.

  Both side wall parts 23, 23 are provided with a plurality of projecting parts 24, 24... In the shape of projecting outward in the case width direction on the outer side surface part, spaced in the card insertion direction, and concave between the projecting parts 24, 24. Insertion portions 25, 25 are formed.

  In addition, a slit-like insertion groove 26 is formed in each side wall portion 23, 23 inside each overhanging portion 24, 24..., And a side plate portion 21b of a lower shield cover 21 to be described later is formed in this insertion groove 26. , 21b are inserted.

  The one side wall 23 has an overhanging portion for positioning to which the positioning portion Ba of the card body B comes into contact when the card body B is inserted into the lower card insertion portion 11 on the inner side in the card body insertion direction. 27 is integrally formed.

  The bottom plate portion 22 has a flat bottom surface, whereby the bottom plate portion 22 itself constitutes an independent support portion, and the lower case body 20 is independently printed via the independent support portion, that is, the bottom plate portion 22. Has come to be supported.

  In the bottom plate portion 22, a plurality of rectangular rear opening windows 28, 28... Extending in the card body insertion direction penetrating in the bottom plate thickness direction on the back side in the card body insertion direction are arranged in parallel with each other in the connector width direction. A plurality of oblong front-side opening windows 29, 29... In the card body insertion direction penetrating the card body insertion direction front side portion in the bottom plate thickness direction are arranged in parallel with each other. It is formed side by side in the width direction.

  The lower case body 20 is formed by pressing a conductive metal plate material to form the lower contacts 30, 30... On the back side and the lower contacts 31, 31. . And the slid contact members 32, 32... Are integrally integrated by insert molding, and the lower contacts 30 on the back side according to the positions of the open windows 28, 28. 30... Are arranged in parallel with each other in the card insertion direction, and the lower contacts 31, 31. On the front side according to the positions of the respective opening windows 29, 29. .. are arranged in parallel with each other while facing the card insertion direction.

  The lower contacts 30, 30... On the back side are one of a frame-shaped fixed piece portion 33, an elastic contact piece portion 34 that is cut and raised obliquely upward from the inner edge of the fixed piece portion 33, and one of the fixed piece portions 33. And a board connection terminal portion 35 extending outward from the side edge, a fixed piece 33 is embedded in the inner peripheral edge of the opening window 28 by insert molding, and a base end portion of the elastic contact piece 34 is a fixed piece. The contact portion 34 a supported by the bottom plate portion 22 through the portion 33 and formed at the tip of the elastic contact piece 34 protrudes from the bottom plate portion 22 through the opening window 28 and is lifted from the inner bottom portion of the lower card body insertion portion 11. Has been placed.

  Further, one end of the board connection terminal portion 35 is exposed in a state of protruding from the back side end of the bottom plate portion 22 in the card insertion direction, and is soldered to a signal terminal connection pattern formed on the printed wiring board P. .

  On the other hand, the lower contacts 31, 31... On the front side are a U-shaped elastic contact piece having a fixed piece portion 36 fixed to the bottom plate portion 22 by insert molding and an arc-shaped contact portion 37 a on the top portion. The elastic contact piece 37 is integrally supported by the fixed piece 36, the contact point 37a projects from the bottom plate 22 through the opening window 29, and the other end (movable end) is movable. The contact portion 37a at the character-shaped top portion is arranged in a state of being lifted from the inner bottom portion of the lower card body insertion portion 11.

  Further, a substrate connection terminal portion 38 is formed on the front lower contact 31, 31... By cutting and raising a part of the fixed piece portion 36, and the substrate connection terminal portion 38 passes through the opening window 29. It is exposed on the lower surface side of the bottom plate portion 22 and is soldered to a connection pattern formed on the printed wiring board P.

  Each of the lower contacts 30, 30... 31, 31,... Is soldered to a connection pattern formed on the surface of the printed wiring board P, whereby the lower case body. 20 is fixed to the printed wiring board P and also functions as an independent support portion.

  The sliding contact members 32, 32... Are formed of a conductive metal plate, the sliding contact surface portion 32 a is exposed on the inner bottom side of the lower card body insertion portion 11, and the movable end 37 b of the elastic contact piece portion 37. When the card body A is inserted into the lower card body insertion portion 11 so as to be disposed below and the card body A is inserted into the lower card body insertion portion 11, the movable end 37b of the elastic contact piece portion 37 is The movable end 37b comes into contact with the surface and slides on the sliding contact surface portion 32a while applying a reaction force to the sliding contact surface portion 32a against the downward pressing force of the card body A.

  As shown in FIG. 8, the lower shield cover 21 is integrally formed by punching and bending a conductive metal plate material, and is vertically downward from the flat top plate portion 21a and both side edges of the top plate portion 21a. Side plate portions 21b and 21b having a bent shape are provided.

  The lower shield cover 21 includes independent support portions 39 and 39 that come into contact with the printed wiring board P. The lower shield cover 21 is independently supported by the printed wiring board P via the independent support portions 39 and 39, and the lower case body. A clearance c2 is provided between the upper end surface 20 and the top plate portion 21a.

  The top plate portion 21a is formed with a concave cutout 40 on the front side in the card insertion direction, and a bottom support portion 41 is formed that is folded back above the edge in the card insertion direction of the cutout 40.

  Further, a back side wall plate part 42 that is bent vertically downward is formed at the back side edge of the top plate part 21a in the card insertion direction, and this back side wall plate part 42 is the back side in the card insertion direction of the lower card insertion part 11. The opening is closed.

  The side plate portions 21b and 21b are formed in an elongated rectangular shape, and independent support portions 39, 39... Are integrally formed at the lower edge portion thereof, and the lower shield is provided via the independent support portions 39, 39. The cover 21 is independently supported by the printed wiring board P.

  The independent support portion 39 is formed with a vertical portion 39a having a shape projecting downward from the lower edge of the side plate portion 21b, and a substrate connecting piece portion 39b having a shape bent outward in the horizontal direction from the lower edge of the vertical portion 39a. The board connecting piece 39b is disposed on the lower surface of the lower housing body 14 through the insertion parts 25 and 25 when the side plate part 21a is inserted into the insertion groove 26, and comes into contact with the surface of the printed wiring board P and is printed. It is soldered to a ground connection pattern formed on the wiring board P.

  The height of the lower shield cover 21, that is, the distance from the board connecting piece 39b to the top plate 21a, is fixed between the upper surface of the lower case body 20 and the lower surface of the top plate 21a when fixed to the printed wiring board P. The height at which the clearance c2 is formed, that is, the height of the lower case body 20 in the connector thickness direction is set to be higher by a desired height.

  As shown in FIG. 9, the upper housing body 15 is a combination of an upper case body 50 molded with an insulating synthetic resin and an upper shield cover 51 made of a conductive metal plate covering the upper and side portions. Thus, the card body insertion direction front side end is formed in a hollow shape.

  The upper case body 50 and the upper shield cover 51 are each provided with an independent support portion that abuts against the printed wiring board P. The upper case body 50 and the upper shield cover 51 are independently supported by the printed wiring board P via the independent support portion, and the lower shield cover 21 The Clarins c1 is between the upper surface and the lower surface of the upper case body 50, the clearance c3 is between the upper surface of the lower case body 20 and the lower surface of the upper case body 50, and the top plate of the upper case body 50 and the upper shield cover 51 is Clearances c4 are provided between the portions 51a.

  As shown in FIG. 9, the upper case main body 50 includes a flat bottom plate portion 52 and side wall portions 53, 53 having a shape raised from both side edges of the bottom plate portion 52, and the side wall portion 53 on the bottom plate portion 52. , 53 is formed with an upper card body insertion portion 12 having a recessed upper surface side, and the upper surface portion is covered with a top plate portion 51 a of the upper shield cover 51.

  Both side wall parts 53 and 53 are formed so that the distance between side wall parts 53 and 53 may become narrower than the near side in the card insertion direction back side according to the shape of card body A.

  The bottom plate portion 52 is formed in a flat plate shape having a concave cutout portion 54 formed on the front side portion in the card insertion direction, and is disposed on the lower housing body 14, that is, the lower shield cover 21 so as to be overlapped. The bottom support portion 41 of the cover 21 is inserted into the front side of the notch portion 54.

  Support legs 55, 55 ... projecting downward are formed on the bottom surface of the bottom plate 52, and the support legs 55, 55 ... constitute independent support parts, and the support legs 55, 55. Is arranged on the lower surface of the housing 13 through insertion portions 25, 25 formed in the lower housing body 14.

  The protruding height of the support legs 55, 55 is such that when the connector is fixed to the printed wiring board P, the Clarins c1 is between the upper surface of the lower shield cover 21 and the lower surface of the upper case body 50, and the upper surface of the lower case body 20 is And the lower surface of the upper case body 50 are formed so as to be higher by a desired length than the height at which the clearance c3 is formed, that is, the height of the lower housing body 14 in the connector thickness direction.

  The upper contacts 56, 56... Formed in an arrangement as shown in FIG. 10 by pressing a conductive metal plate material are integrally incorporated into the bottom plate portion 52 by insert molding. The upper contacts 56, 56... Oriented in the card insertion direction are arranged in parallel with each other in accordance with the position of the opening window 57 formed in FIG.

  Each of the upper contacts 56, 56... Has an elongated plate-like fixed piece portion 58 whose both ends are embedded in the periphery of the opening window, and a shape in which the proximal end is supported by the fixed piece portion 58 and rises obliquely upward. The elastic contact piece portion 59 and the board connection terminal portion 60 connected to the printed wiring board P are integrally formed, and the base end portion of the elastic contact piece portion 59 is connected to the bottom plate portion 52 via the fixed piece portion 58. The contact portion 59a formed at the tip of the elastic contact piece 59 is arranged so as to protrude from the bottom plate portion 52 through the opening window 57 and to be lifted from the inner bottom portion of the upper card body insertion portion 12.

  The board connection terminal part 60 has an extended part 60a extending from the back end surface part of the bottom plate part 52 toward the board side, and a connecting part 60b bent horizontally outward from the lower end of the extended part 60a. The connection portion 60b is soldered to a connection pattern formed on the printed wiring board P.

  The board connection terminal portion 60 constitutes an independent support portion, and the upper case body 50 is independently supported by the printed wiring board P via the support legs 55, 55... And the board connection terminal portion 60. It has become so.

  As shown in FIG. 11, the upper shield cover 51 is formed by punching and bending a conductive metal plate material, and is bent vertically downward from the flat top plate portion 51a and both side edges of the top plate portion 51a. The side plate portions 51b and 51b are shaped to cover the entire upper surface and side surfaces of the housing 13.

  In the upper shield cover 51, the side plate portions 51b and 51b themselves constitute independent support portions, and the upper shield cover 51 is independently supported by the printed wiring board P via the side plate portions 51b and 51b, and the upper case main body. A clearance c4 is provided between the upper surface of 50 and the top plate portion 51a.

  The top plate portion 51 a has a rectangular notch 61 formed on the front side in the card insertion direction, and a part of the card body A inserted into the upper card insertion portion 12 through the notch 61 is formed on the upper surface of the housing 13. The card body A is exposed and facilitates the insertion / extraction operation.

  In addition, a retaining plate portion 62 that is bent vertically downward is formed at the back edge of the top plate portion 51a in the card insertion direction, and this retaining plate portion 62 is the rear opening portion of the upper card insertion portion 12. Is supposed to be closed.

  The side plate portions 51b and 51b are formed in an elongated rectangular shape that is long in the card insertion direction, and are provided with board connection pieces 63 and 63 that are horizontally inwardly bent at both ends of the card insertion direction at the lower edge portion. A support leg 64 having a shape protruding downward is provided at the center.

  The board connection piece 63 is exposed to the lower surface of the housing 13 by being fitted into the recess 22a formed on the lower surface portion of the bottom plate portion 22 of the lower case body 20, and is soldered to the ground pattern formed on the printed wiring board P. It is like that.

  Further, the side plate portion 51b is formed with engagement holes 66, 66 that engage with the protruding portions 65 of the lower case body 20 that protrude from the outside, and the board connecting pieces 63 By arranging the lower case body 20, the lower shield cover 21 and the upper case body 50 between the top plate portion 51a, even if clearances c1 to c4 are provided between the respective portions, they are not separated and disassembled. .

  Further, the side plate portion 51 b is formed with retaining pieces 67, 67 that are bent inwardly at the inner edge in the card insertion direction, and these retaining pieces are located on the back side of the upper case body 50 and the lower case body 20. By abutting against the end face, relative movement in the card insertion direction with respect to the upper case body 50 and the lower case body 20 of the upper shield cover 51 is restricted.

  As shown in FIGS. 12 to 14, the card connector 10 configured as described above includes a lower case body 20, a lower shield cover 21, an upper case body 50, and an upper shield cover 51, each having an independent support portion. The case body 20, the lower shield cover 21, the upper case body 50, and the upper shield cover 51 are independently supported by the printed wiring board P without depending on other parts, and the lower housing body 14 and the upper housing body 15 are supported. Between the upper end of the lower case body 20 and the top plate portion 21a of the lower shield cover 21, between the upper surface of the lower case body 20 and the lower surface of the upper case body 50, and the upper surface of the upper case body 50 and the upper shield cover. Clearances c <b> 1 to c <b> 4 are respectively formed between the top plate portion 51 a of 51.

  As a result, even when the lower case body 20, the lower shield cover 21, the upper case body 50, and the upper shield cover 51 are deformed by heating or the like due to reflow work, the deformation is caused by the clearances c1 to c4. It is absorbed and does not interfere with other parts.

  Further, when the parts of the lower case body 20, the lower shield cover 21, the upper case body 50, and the upper shield cover 51 are assembled, the tolerances of the parts are not accumulated and do not affect each other. .

  Therefore, the coplanarity of the lower contacts 30, 30 ..., 31, 31 ..., that is, the uniformity of the connection state of the lower contacts 30, 30 ..., 31, 31 ... to the printed wiring board P is .., 31, 31..., That is, the lower case body 20 is independently supported by the printed wiring board P and independently of the other parts. Therefore, a stable connection state can be ensured.

  On the other hand, the coplanarity of the upper contacts 56, 56 ..., that is, the uniformity of the connection state of the upper contacts 56, 56 ... with respect to the printed wiring board P is the portion where the upper contacts 56, 56 ... are supported, That is, the upper case body 50 is independently supported by the printed wiring board P via an independent support portion including support legs 55, 55... And is independent of other portions. The influence can be eliminated, and a stable connection state can be maintained.

  The parts of the lower case body 20, the lower shield cover 21, the upper case body 50, and the upper shield cover 51 are soldered to connection patterns formed on the printed wiring board P through contacts or board connection pieces, respectively. Since it has a structure, each component is fixed to the printed wiring board P in a stable state.

  In the above-described embodiments, the card bodies A and B have been described as being different types of IC cards and flash memory cards. However, the same type of card may be used, and the card body may be a card tray. It may be a card containing a card or an adapter.

  Further, in the above-described embodiment, the example in which the housing 13 is configured by the upper and lower two-stage housing bodies 14 and 15 has been described. However, the housing structure is not limited to this embodiment, and three or more housing bodies are stacked. In this case, each housing body is provided with an independent support portion so that it can be supported independently by the printed wiring board P, and a clearance is provided between the housing bodies. To be able to.

  In addition, the mode of each independent support part for supporting each component of the lower case body, the lower shield cover, the upper case body, and the upper shield cover independently on the printed wiring board P is not limited to the above-described embodiments. As long as it can contact the surface of the printed wiring board P and can support each component independently.

A card body (flash memory card)
B card body (IC card)
10 card connector 11 lower card insertion portion 12 upper card insertion portion 13 housing 14 lower housing body 15 upper housing body 20 lower case body 21 lower shield cover 22 bottom plate portion (independent support portion)
23 Side wall part 24 Overhang part 25 Insertion part 26 Insertion groove 27 Positioning overhang part 28 Back side opening window 29 Front side opening window 30 Back side lower contact 31 Front side lower contact 32 Sliding contact member 33 Fixed piece part 34 Elastic contact Piece 35 Substrate connection terminal portion 36 Fixed piece portion 37 Elastic contact piece portion 38 Substrate connection terminal portion 39 Substrate connection piece portion (independent support portion)
40 Notch 41 Bottom support 50 Upper case body 51 Upper shield cover 52 Bottom plate 53 Side wall 54 Notch 55 Support leg 56 Upper contact 57 Open window 58 Fixed piece 59 Elastic contact piece 60 Substrate connection terminal 61 Notch 62 Retaining plate 63 Board connecting piece 64 Support leg 65 Engaging protrusion

Claims (3)

A housing having a plurality of card insertion portions into which a card body is inserted in a multi-stage arrangement, and is supported by the housing and protrudes into each card insertion portion, and contacts a signal transmission terminal of the card body inserted into each card insertion portion A plurality of contacts, and a card connector capable of connecting the plurality of card bodies in parallel with each other,
The housing is configured by arranging a plurality of housing bodies each having the card insertion portion in multiple stages,
Each housing body includes an independent support portion that abuts on the surface of the substrate, and is supported by the substrate for each housing body via the independent support portion, and a clearance is provided between the housing bodies .
The independent support part of the housing body arranged in the upper stage is configured with a support leg protruding from the lower surface of the housing body, and the support leg passes through an insertion part formed in the housing body arranged in the lower stage side. A card connector characterized by being arranged on the lower surface of the housing . The housing body incorporates a case main body having a bottom plate portion made of an insulating resin material that constitutes an inner bottom portion of the card insertion portion, and a shield cover having a top plate portion in an opposing arrangement spaced apart from the bottom plate portion. Formed by
The card connector according to claim 1, wherein the case main body and the shield cover are each provided with the independent support portion, and a clearance is provided between an upper end surface of the case main body and the top plate portion. The contact supported by the housing body arranged in the upper stage includes a board connection terminal part having an extension part extending toward the wiring board side from the bottom plate part, and the board connection terminal part is supported independently. card connector of claim 1 or 2 comprising as part.

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