JP2013206663A - Card connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card connector capable of reducing its height, and ensuring stable behavior of contacts when a card body is inserted into a housing.SOLUTION: A contact 5 comprises a holding piece part 20 fixed on a bottom plate part 8 consisting of an insulation synthetic resin by insert molding; and an elastic contact piece part 21 in which one edge thereof is a holding edge 29 and the other edge thereof is a movable edge 33. A contact part 31 is formed between the holding edge 29 and the movable edge 33 of the elastic contact piece part 21. The bottom plate part 8 is exposed to an inner bottom side of a card body insertion part 2, and has a metal slid contact member 12 integrally having a slid contact surface part 40 arranged under the movable edge 33. When the card body A is inserted into a card body insertion part 2, the elastic contact piece part 21 is pressed against the card body A and is deformed, the movable edge 33 is slid against the slid contact surface part 40, and both edges 29, 33 of the elastic contact piece part 21 are supported by the bottom plate part 8.

Description

  The present invention relates to a card connector for connecting a card body such as an IC card or a flash memory card to a printed wiring board mounted on an electronic device such as a mobile phone or a smartphone.

  Conventionally, a card body such as an IC card or a flash memory card is used as an external storage medium of an electronic device such as a mobile phone or a smartphone. The card body and a printed wiring board mounted on the electronic device are connected via a card connector. Are electrically connected.

  This type of card connector includes a housing having a card body insertion portion into which a card body such as an IC card is inserted, and a plurality of conductive metal plate members having elastic contact pieces protruding from the bottom of the card body insertion portion. And the card body is inserted into the card body insertion portion, so that the signal transmission terminal (pad) formed on one side of the card body comes into contact with the corresponding elastic contact piece of the contact, and the printed wiring board and the card It is designed to connect the body electrically.

  The contact used in such a card connector is a cantilever in which the front end portion of the elastic contact piece in the card body insertion direction is supported on the bottom of the housing and the other contact side is lifted from the bottom. The structure is widely used, and when the card body is inserted into the card body insertion portion, the card body presses the elastic contact piece, and the elastic contact piece is elastically deformed with the fixed end side supported. (For example, see Patent Document 1).

  However, along with miniaturization and low profile of electronic devices such as mobile phones and smartphones and miniaturization of card bodies such as IC cards, this type of card connector has also been miniaturized and low profile. The plate thickness of the conductive metal plate material to be formed has to be reduced, and the elastic contact piece of the cantilever support sometimes cannot secure the elasticity (spring constant) necessary to obtain a sufficient contact pressure.

  Therefore, in view of the problems as described above, a contact having a U-shaped elastic contact piece having a contact portion formed on the top is used, and a force in a downward direction is applied to the elastic contact piece by being pressed by the edge of the card body. A card connector has been developed in which an elastic contact piece is elastically deformed with both ends thereof supported by a housing when it is actuated to improve the elasticity (spring constant) of the elastic contact piece (for example, a patent) Reference 2).

  This card connector includes a mold case made of an insulating synthetic resin that constitutes a housing, and contacts are incorporated into a bottom plate portion of the mold case in a card insertion / removal direction.

  The contact is provided with a resilient contact piece in a side view with the top contact side facing upward, and a movable end and a fixed end each projecting outward from both side edges at both ends of the elastic contact piece. It is integrally formed.

  On the other hand, an opening window penetrating in the thickness direction of the bottom plate is formed in the bottom plate portion of the mold case in the card body insertion / removal direction, and the movable end portion of the elastic contact piece is continuously connected to the back side of the opening direction of the card body An insertion groove is formed so as to be movably inserted, and a press-fitting groove that is continuous to the front side of the card body insertion / extraction direction of the opening window and penetrates to the outer edge of the mold case is formed.

  Then, by inserting the contact from the insertion groove side into the bottom of the mold case, the movable end of the elastic contact piece is movably inserted into the insertion groove, and the fixed end of the elastic contact piece is press-fitted into the press-fit groove. The contact is assembled with the fixed end fixed to the bottom of the mold case, the card body is inserted into the card body insertion portion, and the card body receives a pressing force when the edge of the card body presses the elastic contact piece. The movable end is slid while taking a reaction force on the bottom of the insertion groove, and is elastically brought into contact with both ends against the force in the push-down direction.

  The press-fit groove has a structure in which the contact is inserted from the press-fit groove side toward the insertion groove side, and is formed with a pair of projecting portions projecting inward from the side edge in an arrangement opposed to the inner bottom portion. The locking portions protruding from both side edges are inserted between the inner bottom portion and the protruding portion by press fitting, and are fixed to the bottom of the mold case by biting into the inner side wall.

  In addition, the insertion groove has a pair of shoulder portions that protrudes inward from the side edges in a position opposite to the inner bottom portion, and guide portions that protrude from both side edges of the movable end portion are between the inner bottom portion and the shoulder portions. The movable end portion can be moved in the insertion groove in a state where movement of the movable end portion is restricted.

JP-A-11-250202 JP 2008-097947 A

  However, the conventional technology as described above has a structure in which the contact is fixed to the mold case by press-fitting the fixed end of the elastic contact piece under the overhang of the press-fitting groove. Therefore, if the overhang is thin, the strength is insufficient. There is a possibility that the resin molded part may be deformed by this, and therefore, a certain thickness is required for the overhanging part and the groove bottom part, and it is difficult to reduce the height of the connector.

  In particular, the fixed end of the elastic contact piece is press-fitted into the press-fitting groove, and the engaging part is engaged with both inner edges of the press-fitting groove, so that stress remains at both inner edges of the press-fitting groove. When the card connector is heated through reflow soldering or the like, there is a possibility that the insulating synthetic resin portion around the fixed end portion may be deformed. It was necessary to have a thickness.

  In the conventional technology as described above, when the card body is inserted, the elastic contact piece is elastically deformed by being pressed by the card body, and the movable end portion slides while taking a reaction force against the bottom of the insertion groove. Therefore, there is a risk that the inner bottom of the insertion groove made of an insulating synthetic resin may be scraped at the edge portion of the sliding movable piece portion, and the movable end is caught by the scraped portion of the inner bottom portion of the insertion groove. There is a problem in the predetermined behavior of the contact piece, and there is a concern about deformation of the elastic contact piece.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has been made with the object of providing a card connector that can be reduced in height and that allows a contact to behave stably when a card body is inserted into a housing. Is.

  The feature of the invention described in claim 1 for solving the conventional problems as described above and achieving the intended object is that the card body has a bottom plate portion made of an insulating synthetic resin. In a card connector comprising a housing in which a card body insertion portion to be inserted is formed, and a plurality of contacts that protrude from an inner bottom portion of the card body insertion portion and contact a signal transmission terminal formed in the card body, The contact has a fixed piece portion fixed to the bottom plate portion by insert molding, a fixed end fixed to the bottom plate portion through the fixed piece portion, and a card having a fixed end that is movable at the other end. A contact portion that contacts the signal transmission terminal of the card body between the fixed end and the movable end of the elastic contact piece. Float from bottom The bottom plate portion is formed in a raised arrangement, and the bottom plate portion is exposed to an inner bottom side of the card body insertion portion, and a metal sliding contact member integrally including a sliding contact surface portion disposed below the movable end. The elastic contact piece is pressed against the card body and elastically deformed when the card body is inserted into the card body insertion portion, and the movable end is in sliding contact with the sliding contact surface portion, Both ends are supported by the bottom plate.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, an elongated opening window is formed in the bottom plate portion in the card body insertion / extraction direction, and the sliding contact is formed inside the opening window. The sliding contact member is fixed to the housing so that the surface portion is disposed, the fixed piece portion of the contact is fixed to the one end side edge portion of the opening window, and the movable end side end portion of the elastic contact piece portion Is inserted on the other end side of the opening window and above the sliding contact surface portion.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the sliding contact member is integrally provided with an embedded portion integrated with the bottom plate portion by insert molding.

  According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the embedded portion has a rising piece that rises from a side edge of the slidable contact surface portion, and outwards from an upper edge of the rising piece. It is to be provided with an overhanging protruding piece.

  According to a fifth aspect of the present invention, in addition to the configuration of the first to third or fourth aspects, the contact member is integrally provided on the contact.

  According to a sixth aspect of the present invention, in addition to the configuration of the fifth aspect, the contact includes a support piece portion disposed on an outer peripheral side of the movable end portion, the support piece portion and the fixed end portion. A connecting piece portion to be connected, and a sliding contact surface portion plate portion integrally supported on the periphery of the supporting piece portion, and the sliding contact surface portion plate portion is folded back from the periphery of the supporting piece portion. The sliding contact surface portion is formed under the movable end.

  According to a seventh aspect of the present invention, in addition to the configuration of the first or second aspect, the sliding contact plate material includes a pair of press-fitting portions having a shape raised in the vertical direction from both side edges of the sliding contact surface portion. In addition, the sliding contact surface portion is fixed to the housing by press-fitting both the press-fitting portions into press-fitting holes formed in the bottom plate portion.

  As described above, the card connector according to the present invention includes a housing having a bottom plate portion made of an insulating synthetic resin, and a card body insertion portion into which the card body is inserted on the bottom plate portion, and the card body. A card connector comprising a plurality of contacts protruding from an inner bottom portion of the insertion portion and contacting a signal transmission terminal formed on the card body, wherein the contact is a fixed piece portion fixed to the bottom plate portion by insert molding And an elastic contact piece portion in the card body insertion direction which is a fixed end fixed to the bottom plate portion via the fixed piece portion and the other end is a movable end. A contact portion that contacts the signal transmission terminal of the card body is formed between the fixed end and the movable end of the contact piece portion so as to be raised from the inner bottom portion of the card body insertion portion, and the bottom plate portion is A metal sliding contact member that is exposed on the inner bottom side of the card body insertion portion and that has a sliding contact surface portion that is disposed below the movable end and is inserted into the card body insertion portion. When the elastic contact piece is pressed against the card body and elastically deformed, the movable end is slidably contacted with the sliding contact surface portion, and both ends of the elastic contact piece are supported by the bottom plate portion. This makes it possible to reduce the thickness of the bottom plate portion, and to prevent the generation of shaving dust caused by sliding of the movable end and poor behavior due to scraping by supporting the movable end with a metal sliding contact surface portion. be able to.

  Further, in the present invention, the sliding contact member is formed so that an elongated window-like opening window facing the card body insertion / extraction direction is formed in the bottom plate portion, and the sliding contact surface portion is disposed inside the opening window. While fixing to the housing, the fixed piece of the contact is fixed to the edge of one end of the opening window, and the movable end of the elastic contact piece is the other end of the opening window and the sliding contact By being inserted above the surface portion, the overall height of the connector can be reduced, and deformation of the contact when the card body is inserted and removed can be prevented.

  Furthermore, in the present invention, the sliding contact member is integrally provided with an embedded portion that is integrated with the bottom plate portion by insert molding, so that the housing bottom plate portion can be thinned.

  Furthermore, in the present invention, the embedded portion includes a rising piece raised from a side edge of the sliding contact surface portion, and a protruding piece protruding outward from the upper edge of the rising piece. The sliding contact surface portion is arranged on the inner bottom portion of the opening window, and a high proof strength against the pressing force associated with the sliding contact of the movable end of the elastic contact piece is obtained.

  In the present invention, since the sliding contact member is provided integrally with the contact, the sliding contact member can be easily and preferably incorporated into the bottom plate portion of the housing.

  Furthermore, in this invention, while the said contact is provided with the support piece part arrange | positioned at the outer peripheral side of the said movable end part, and a connection piece part which connects this support piece part and the said fixed end part, The said support piece A sliding contact surface portion plate portion integrally supported on the periphery of the support portion, and the sliding contact surface portion plate portion is folded back from the periphery of the support piece portion to form the sliding contact surface portion below the movable end. Thus, the sliding contact member can be suitably integrated with the contact.

  In the present invention, the slidable contact member includes a pair of press-fit portions that are vertically raised from both side edges of the slidable contact surface portion, and the press-fit portions that are formed on the bottom plate portion. Since the sliding contact surface portion is fixed to the housing by being press-fitted into the hole, the sliding contact member can be incorporated into the housing bottom plate portion with a simple structure.

1 is a perspective view showing a first embodiment of a card connector according to the present invention. It is the perspective view seen from the lower side same as the above. It is a bottom view which shows an example of a card body. It is a top view which shows the state which removed the shield cover same as the above. It is a longitudinal cross-sectional view same as the above. It is a perspective view which shows arrangement | positioning of each contact and sliding member in FIG. (A) is a top view which shows a contact same as the above, (b) is the longitudinal cross-sectional view. FIG. 2 is a partially enlarged longitudinal sectional view showing a state of a contact portion on the near side of the card connector shown in FIG. 1. It is a perspective view which shows the to-be-slidable contact member in FIG. 4, Comprising: (a) is the state seen from the top, (b) is the state seen from the bottom. It is a top view for demonstrating the manufacturing process of each contact and a to-be-slidable contact member. FIG. 2 is an enlarged longitudinal sectional view showing a state where a card body is inserted into the card connector in FIG. 1. It is a top view which shows the state which removed the shield cover of 2nd Embodiment of the card connector which concerns on this invention. It is a perspective view which shows the contact in FIG. It is a top view which shows the state which removed the shield cover of 3rd Embodiment of the card connector which concerns on this invention. It is a perspective view which shows the state of arrangement | positioning of the contact member in FIG. It is a perspective view which shows the state which removed the shield cover of 4th Embodiment of the card connector which concerns on this invention. It is the perspective view seen from the bottom same as the above. It is an enlarged vertical sectional view same as the above. (A) is a top view which shows the to-be-slidable member in FIG. 16, (b) is the front view, (c) is the longitudinal cross-sectional view.

  Next, a first 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 1 denotes a card connector, and reference numeral A denotes a card body such as an IC card.

  The card body A is, for example, an IC card as shown in FIG. 3, which is formed in a rectangular shape having a longer card length than the entire card width, and has a shape that is cut in an oblique direction at one corner of the rectangular shape. Part Aa is formed.

  On one side of the card body A, a pair of signal terminal arrays in which a plurality of signal terminals a1, a1... Are arranged in the card width direction are formed in parallel with a gap in the entire card length direction.

  The card connector 1 includes a housing 3 in which a card body insertion portion 2 into which the card body A is inserted, and two types of contacts 4 and 5 having elastic contact pieces protruding into the card body insertion portion 2. When the card body A is inserted into the card body insertion portion 2, the signal transmission terminals (pads) a1, a1... Formed on one side of the card body A come into contact with the corresponding contacts 4, 5, and the card body A and the printed wiring board are electrically connected via a connector.

  The housing 3 is formed by combining a mold case 6 molded with an insulating synthetic resin and a shield cover 7 made of a conductive metal plate covering the upper surface portion, the back surface portion, and the side surface portion of the housing 3 in front of the card body insertion direction. It is formed in a hollow shape whose side ends are open.

  As shown in FIGS. 4 and 5, the mold case 6 includes a flat bottom plate portion 8 and side wall portions 9 and 9 raised from both side edges of the bottom plate portion 8, and the upper surface side is recessed on the bottom plate portion 8. An oval card body insertion portion 2 is formed, and the upper surface portion thereof is covered with a shield cover 7.

  One side wall 9 has a positioning overhang 9a against which the positioning portion Aa of the card body A comes into contact when the card body A is inserted into the card body insertion portion 2 on the back side in the card body insertion direction. It is integrally formed.

  In the bottom plate portion 8, a plurality of rectangular back side opening windows 10, 10... 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 11, 11... Which are formed side by side and extend in the card body insertion direction and which pass through the bottom plate thickness direction, are arranged in parallel with each other. It is formed side by side in the width direction.

  Further, the mold case 6 is formed by press-working a conductive metal plate material to form the back contacts 4, 4..., The near contacts 5, 5. The sliding members 12, 12... Are integrally incorporated by insert molding, and the contacts 4, 4,... On the back side are aligned with the positions of the opening windows 10, 10. Are arranged side by side in parallel with each other in the card insertion direction, and the contacts 5, 5... On the front side are inserted into the cards in accordance with the positions of the respective opening windows 11, 11. They are oriented side by side and parallel to each other. In the present embodiment, the elastic contact pieces of the contacts 4 and 5 arranged on one side are removed by cutting in order to correspond to the number of signal transmission electrons of the card body A.

  The back side contacts 4, 4... Have a frame-shaped fixed piece portion 14, an elastic contact piece portion 15 that is cut and raised obliquely upward from the inner edge of the fixed piece portion 14, and one of the fixed piece portions 14. And a board connecting terminal portion 16 extending outward from the side edge. The fixed piece portion 14 is embedded in the inner peripheral edge portion of the opening window 10, 10... By insert molding, and the base end of the elastic contact piece 15. Is supported by the bottom plate portion 8 via the fixed piece portion 14, and a contact portion 17 formed at the tip of the elastic contact piece 15 protrudes from the bottom plate portion 8 through the opening window 10 and floats from the inner bottom portion of the card body insertion portion 2. The elastic contact piece 15 is cantilevered.

  On the other hand, as shown in FIG. 7, the front side contacts 5, 5... Are fixed to the bottom plate portion 8 by insert molding, and the arc-shaped contact portion 31 is arranged on the top portion. A letter-shaped elastic contact piece 21 is integrally provided.

  The fixed piece 20 includes a rectangular flat plate-like base portion 22 and a pair of insert portions 23 and 23 extending from both sides of the base portion 22 in the card body insertion direction, and is formed in a U shape in plan view. Both side portions of the base portion 22 and both insert portions 23 and 23 are both side edge portions of the opening windows 11, 11... By insert molding, and are embedded in substantially the middle portion of the bottom plate portion 8 in the thickness direction.

  Each insert portion 23, 23 is formed in an elongated plate shape in the card body insertion direction, a long hole-like through hole 24 is formed in the center portion thereof, and an insulating synthetic resin is inserted into this through hole 24 by insert molding. The fixed piece portion 20 can be firmly fixed to the bottom plate portion 8 by entering.

  In the base portion 22, a cut 25 for cutting and raising is formed in the base portion 22 at a substantially central portion, and a substrate connection terminal portion 26 is formed by cutting and raising.

  The board connection terminal portion 26 has a slant piece 26b that is bent obliquely downward from a fold portion 26a formed on the front side portion in the card body insertion direction, and a front end of the slant piece 26b toward the horizontal card body insertion side. The connection piece 26c is exposed to the lower surface side of the bottom plate portion 8 through the opening windows 10, 10... And soldered to the connection pattern formed on the printed circuit board. It has become.

  In addition, the base 22 is formed with a pair of connection support portions 28, 28 by making cuts 25, 27, and one end of the elastic contact piece 21 is integrally supported via the connection support portions 28, 28. One end of the elastic contact piece portion 21, that is, the fixed end 29 is fixed to the bottom plate portion 8 via the fixed piece portion 20.

  The elastic contact piece 21 includes a fixed side piece 30 having a shape inclined toward the upper side in the card body insertion direction from the fixed end 29, a contact portion 31 having a shape in which the distal end side of the fixed side piece 30 is bent in an arc shape, A movable side piece 32 having a shape inclined from the other end side of the contact part 31 toward the lower side in the card body insertion direction. The fixed side piece 30, the contact part 31 and the movable side piece 32 are used as the top part. A contact 31 that contacts the signal transmission terminal of the card body A is formed between the fixed end 29 and the movable end 33 of the elastic contact piece 21.

  The fixed side piece 30 and the movable side piece 32 are respectively formed with slits 30a and 32a directed in the card body insertion direction.

  As shown in FIG. 8, the elastic contact piece 21 is arranged at one end in the opening windows 11, 11... By the fixed piece 20 being incorporated into the bottom plate 8 by insert molding. Then, the contact portion 31 side of the fixed side piece 30 extending obliquely upward from the fixed end 29 protrudes from the inner bottom surface of the bottom plate portion 8 to the card body insertion portion 2 through the opening windows 11, 11. The contact portion 31 formed between the fixed end 29 and the movable end 33 is formed so as to be lifted from the inner bottom portion of the card body insertion portion 2.

  Further, since the elastic contact piece 21 is formed in a U shape, the end of the elastic contact piece 21 on the movable end 33 side is the other end side of the opening windows 11, 11. By inserting the fixed end 29 and the movable end 33 into the opening windows 11, 11,..., The overall height of the card connector can be reduced, and the card body A can be elastically inserted and removed. It is possible to prevent deformation due to contact between both ends of the contact piece 21, in particular, the movable end 33 with the edge of the card body A. Further, even if an inappropriate card-like object is accidentally inserted, the elastic contact piece 21 due to the movable end 33 coming into contact with the edge or the like of the inserted card-like object in the same manner. Can be prevented from being deformed.

  As shown in FIG. 9, the sliding members 12, 12... Are formed of a conductive metal plate material, and have a flat plate-like sliding contact surface portion 40 and an embedded portion 41 embedded in the bottom plate portion 8 by insert molding. , 41, and the sliding contact surface portion 40 is fixed to the bottom plate portion 8 so as to be exposed on the inner bottom side of the card body insertion portion 2 and disposed below the movable end 33 of the elastic contact piece portion 21. ing.

The sliding contact surface portion 40 is formed in an elongated plate shape that is long in the connector width direction, and is connected to the back side contact 4 via the connecting piece 13 during insert molding.

  In FIG. 6, the contact 4 and the slidable contact member 12 are shown in a separated state. However, at the time of pressing, the contact 4 and the slidable contact member 12 are shown in FIG. 10 (a). It is in a continuous state via the connecting piece 13 and is cut off by cutting the connecting piece 13 after insert molding.

  Further, as shown in FIG. 10 (b), the carrier C1 that supports the contacts 4, 4... And the slid contact members 12, 12. By bringing the carrier C2 close to each other, the sliding contact surface portion 40 of the sliding contact member 12 is disposed under the movable end 33 of the elastic contact piece 21 of the contact 5, and insert molding is performed in this state. ing.

  The embedded portions 41 and 41 include a rising piece 42 raised from the side edge of the sliding contact surface portion 40 and a protruding piece 43 protruding outward from the upper edge of the rising piece 42 in the horizontal direction. The protruding piece 43 is opened. The sliding contact surface portion 40 is arranged at the inner bottom portion of the opening window 11, 11 ... by being embedded in both side edges of the other end portion of the window 11, 11 ... and in the substantially middle portion in the thickness direction of the bottom plate portion 8. Are exposed to the inner bottom side of the card body insertion portion 2 through the opening windows 11, 11... And disposed below the movable end 33 of the elastic contact piece portion 21.

  In addition, arc-shaped cutouts 44 are formed on the outer edge portions of the projecting pieces 43, 43, and an insulating synthetic resin enters the cutouts at the time of insert molding, so that the sliding contact members 12, 12. Movement in the card insertion direction is restricted.

  In the card connector 1 configured as described above, when the card body A is inserted into the card body insertion portion 2, the edge of the card body A comes into contact with the upper surface side of the fixed side piece 30 of the elastic contact piece portion 21, and the fixed end. When the elastic contact piece portion 21 is rotated with reference to 29 and the card body A is further pushed in, the elastic contact piece portion 21 is elastically deformed and the movable end 33 comes into contact with the surface of the slidable contact surface portion 40. The movable end 33 slides on the sliding contact surface portion 40 while taking a reaction force on the sliding contact surface portion 40 against the downward pressing force.

  At this time, since the sliding contact surface portion 40 is made of metal, it is possible to prevent scraping compared to the case of sliding on a surface made of a conventional insulating synthetic resin material, and furthermore, the sliding contact surface portion 40. Therefore, the movable end 32 can smoothly slide on the slidable contact surface 40, and the elastic contact piece 21 can operate stably.

  Then, as shown in FIG. 11, when the card body A is pushed to a predetermined position, the signal transmission terminals a1, a1... Formed on one side of the card body A correspond to the contact portions of the contacts 4, 5. 17 and 31 come into contact with each other, and the elastic contact pieces 15 and 21 receive a downward pressing force from the card body A.

  With respect to this pressing force, one end of the elastic contact piece 21, that is, the fixed end 29 is fixed to the bottom plate portion 8 via the fixed piece portion 20, and the other end, that is, the movable end 33 is fixed to the sliding contact members 12, 12. Since it is supported by the bottom plate part 8 via ..., reaction forces are taken at both ends so that they come into contact with each other at a suitable contact pressure.

  At this time, the slidable contact member 12 is provided with projecting pieces 43 and 43 having a shape projecting in the horizontal direction, and the projecting pieces 43 and 43 are embedded in the bottom plate portion 8, thereby allowing the movable end of the elastic contact piece 21 to move. The movable end 33 is supported in a stable state against the pressing force accompanying the sliding contact of the 33.

  Next, a second embodiment of the card connector according to the present invention will be described based on the embodiment shown in FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to the above-mentioned Example, and description is abbreviate | omitted.

  In this card connector, the contacts 50, 50 ... on the front side are integrally provided with a sliding contact member, and the contact 50 on the front side is incorporated into the bottom plate portion 8 of the housing 3 by insert molding. The surface portion 51 is exposed on the inner bottom side of the card body insertion portion 2 and is arranged below the movable end 33.

  As shown in FIG. 13, the contact 50 on the near side is formed by punching and bending a conductive metal plate, and is fixed to a rectangular frame-shaped fixed piece 52 fixed to the bottom plate 8 by insert molding. An elastic contact piece portion 21 having an arcuate shape with an arc-shaped contact portion 31 disposed on the top portion of which one end is fixed to the inner edge portion of the piece portion 52 is integrally provided.

  The fixed piece 52 includes a rectangular flat plate-like base 53, support pieces 54 formed in parallel with each other at intervals in the card insertion direction, and between the side portions of the base 53 and the support piece 54. Are connected to each other, and the base 53, the support piece 54, and the two connection pieces 55, 55 form a rectangular frame shape.

  In the base portion 53, a cut 25 for cutting and raising is formed in the base portion 53 at a substantially central portion, and the substrate connection terminal portion 26 is formed by cutting and raising.

  The board connection terminal portion 26 has a slant piece 26b that is bent obliquely downward from a fold portion 26a formed on the front side portion in the card body insertion direction, and a front end of the slant piece 26b toward the horizontal card body insertion side. The connection piece 26c is exposed to the lower surface side of the bottom plate portion 8 through the opening windows 10, 10... And is soldered to the connection pattern formed on the printed wiring board. ing.

  On the other hand, the elastic contact piece 21 is formed inside the frame of the fixed piece 52 by cutting and raising, and the fixed side piece having a shape inclined toward the upper side in the card body insertion direction from the fixed end 29 as in the above-described embodiment. 30, a contact portion 31 having a shape in which the tip side of the fixed side piece 30 is bent in an arc shape, and a movable side piece 32 having a shape inclined from the other end side of the contact portion 31 downward in the card body insertion direction, The fixed side piece 30, the contact portion 31 and the movable side piece 32 form a square shape with the contact portion 31 as the top, and between the fixed end 29 and the movable end 33 of the elastic contact piece portion 21. A contact portion 31 that contacts the signal transmission terminal of the card body A is formed.

  Thus, by forming the elastic contact piece portion 21 by cutting and raising, the support piece portion 54 is disposed on the outer peripheral side of the movable end 33 in the card body insertion direction.

  The supporting piece portion 54 is integrally provided with a sliding contact surface portion plate portion 56 on the inner peripheral side in the card body insertion direction, and the sliding contact surface portion plate portion 56 is provided below the periphery of the supporting piece portion 54. The sliding contact surface portion 51 is formed under the movable end 33 by folding back.

  When the contact 50 is incorporated into the bottom plate portion 8 by insert molding, the sliding contact surface portion 51 is disposed on the inner bottom portion of the opening windows 11, 11 ..., and the card body insertion portion is passed through the opening windows 11, 11 .... 2 is exposed on the inner bottom side and is disposed below the movable end 33 of the elastic contact piece 21.

  When the card body A is inserted into the card body insertion portion 2, the elastic contact piece 21 is pressed against the card body A and is elastically deformed so that the movable end 33 is slidably contacted with the slidable contact surface portion 51. Both ends of the portion 21 are supported by the bottom plate portion 8.

  Next, a third embodiment of the card connector according to the present invention will be described based on the embodiment shown in FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to the above-mentioned Example, and description is abbreviate | omitted.

  In this card connector, a plurality of oblong opening windows 60, 60... Are opened in the card body insertion direction penetrating in the bottom plate thickness direction on both sides of the card body insertion direction in the bottom plate portion 8 made of insulating synthetic resin. .. Are formed in a symmetrical arrangement with each other in the card body insertion direction.

  Further, a pair of contact members 61, 61 made of conductive metal plates arranged as shown in FIG. 15 are integrally incorporated in the mold case 6 by insert molding, and each of the opening windows 60, 60 ... The contacts 62 are arranged in parallel to each other in the card insertion direction, and the sliding contact member 63 exposes the sliding contact surface portion 64 to the inner bottom side of the card body insertion portion 2. And it is integrated so that it may be arranged under the movable end 33.

  The contact members 61 and 61 are formed by punching and bending a conductive metal plate material, and are integrally provided with a contact 62 and a sliding contact member 63 for mating contact. The sliding contact member 63 for the counterpart contact is separated. In addition, the code | symbol 65 is a cutting part cut | disconnected after insert molding in the figure.

  The contact 62 has an L-shaped fixed piece 66 fixed to the bottom plate portion 8 by insert molding, and a U-shaped contact portion 31 arranged on the top of which one end is fixed to the fixed piece 66. The elastic contact piece 21 is integrally provided.

  The fixed piece 66 includes a rectangular flat base 67 and a connecting piece 68 extending from one side edge of the base 67 toward the card body insertion / extraction direction. The base 67 and the connecting piece 68 are L-shaped. It has a shape.

  Then, by insert molding, both side portions of the base portion 67 are embedded in both side edge portions of the opening end 60 on the mold case side edge side, the connecting piece portion 68 is embedded in the bottom plate portion 8, and the fixed piece portion 66 is embedded in the bottom plate portion 8. It is fixed to.

  In the base 67, a cut 25 for cutting and raising is formed in the base 67 at a substantially central portion, and the substrate connection terminal portion 26 is formed by cutting and raising.

  The board connection terminal portion 26 has a slant piece 26b that is bent obliquely downward from a fold portion 26a formed on the front side portion in the card body insertion direction, and a front end of the slant piece 26b toward the horizontal card body insertion side. The connection piece 26c is exposed to the lower surface side of the bottom plate portion 8 through the opening windows 60, 60... And is soldered to the connection pattern formed on the printed circuit board. It has become.

  Further, the base 67 is formed with a pair of connection support portions 28, 28 by making the cut 25, and one end of the elastic contact piece portion 21 is integrally supported via the connection support portions 28, 28. One end of the elastic contact piece portion 21, that is, the fixed end 29 is fixed to the bottom plate portion 8 via the fixed piece portion 66.

  As in the first embodiment, the elastic contact piece 21 has a fixed side piece 30 that is inclined from the fixed end 29 toward the upper side in the card body insertion direction, and the tip side of the fixed side piece 30 is arcuate. And a movable side piece 32 having a shape inclined toward the lower side in the card body insertion direction from the other end side of the contact part 31, and includes a fixed side piece 30, the contact part 31, and a movable part. The side contact 32 forms a square shape with the contact 31 as the top, and the contact 31 contacts the signal transmission terminal of the card body A between the fixed end 29 and the movable end 33 of the elastic contact 21. Is formed.

  The sliding member 63 is integrally provided with a flat sliding contact surface portion 64 and a connecting piece 69 extending from one side edge portion of the sliding contact surface portion 64 toward the contact 62 side. The contact surface portion 64 and the connecting piece portion 69 form an L shape.

  The connecting piece 68 of the contact 62 and the connecting piece 69 of the slidable contact member 63 are formed continuously and integrally with each other through the cutting portion 65 before insert molding.

  The pair of contact members 61, 61 are arranged so that they are symmetrical with each other in the card body insertion / removal direction and one sliding contact surface portion 64 is positioned below the movable end 33 of the other contact 62, and in this state, molding is performed. By doing so, the slidable contact surface portion 64 is disposed on the inner bottom portion of the opening windows 60, 60 ..., exposed to the inner bottom side of the card body insertion portion 2 through the opening windows 60, 60 ..., and elastically contacted. It is disposed below the movable end 33 of the piece 21.

  Further, by cutting and removing the cutting portion 65 after the insert molding, the contact 62 of each contact member 61, 61 and the sliding contact member 63 are separated and insulated.

  In the card connector configured as described above, when the card body A is inserted into the card body insertion portion 2, the elastic contact piece portion 21 is pressed against the card body A and is elastically deformed, so that the movable end 33 is a sliding surface portion. 64, and both ends of the elastic contact piece 21 are supported by the bottom plate portion 8.

  In each of the above-described embodiments, the example in which the sliding contact member is integrated into the bottom plate portion 8 of the mold case 6 by insert molding has been described. However, as shown in FIGS. May be fixed by press-fitting (fourth embodiment). In addition, the same code | symbol is attached | subjected to the structure similar to the above-mentioned Example, and description is abbreviate | omitted.

  In this card connector, a plurality of elongated opening windows 71, 71... Extending in the card body insertion direction penetrating in the card body insertion direction on both sides in the card body insertion direction are parallel to each other. Open window groups formed side by side in the connector width direction in the arrangement are formed symmetrically with each other in the card body insertion direction.

  Further, in the bottom plate portion 8, a contact 72 made of a conductive metal plate material is integrally incorporated by insert molding, and each contact 72 is directed in the card insertion direction in accordance with the position of each opening window 71, 71. And they are arranged in parallel to each other.

  The contact 72 includes an elastic contact piece 73 formed in a U-shape, and a fixed piece 74 integrally formed at one end of the contact 72 is embedded in the bottom edge of the opening window 71 on the side edge side by insert molding. Is done. In the figure, reference numeral 75 denotes a board connection terminal portion extending outward from the fixed piece portion 74.

  On the other hand, a recess 76 is formed on the bottom surface of the bottom plate 8 in accordance with the center side end position of the opening window 71, and the bottom plate 8 is disposed in the thickness direction on both sides of each opening window 71 of the recess 76. A pair of press-fitting holes 77, 77 are formed through.

  Then, the sliding contact surface portion 78 of the sliding contact member 70 is fitted into the hollow portion 76, whereby the sliding contact surface portion 78 is disposed on the inner bottom portion of each opening window 71, and the card body insertion portion 2 passes through the opening window 71. The elastic contact piece 73 is exposed to the inner bottom side and is disposed below the movable end 73a of the elastic contact piece 73.

  As shown in FIG. 19, the sliding contact member 70 is formed by punching and bending a conductive metal plate material, and stands from a flat sliding contact surface portion 78 and both side edges of the sliding contact surface portion 78. A pair of raised press-fitting pieces 79, 79 are integrally provided.

  The press-fitting piece portion 79 is formed in a rectangular shape and includes locking protrusions 80 and 80 that protrude from both side edges thereof.

  The press-fitting pieces 79, 79 are press-fitted into the press-fitting holes 77, 77 formed on both side edges of the opening window 71 from the lower surface side of the bottom plate 8, and the locking protrusions 80, 80 are bited into the inner edges of the press-fitting holes 77. As a result, the sliding contact member 70 is fixed to the bottom plate portion 8, the sliding contact surface portion 78 is fitted into the recessed portion 76, and the sliding contact surface portion 78 is arranged at the inner bottom portion of each opening window 71.

  In the above embodiment, an IC card is used as an example of the card body A. However, it may be a memory card such as a flash memory card, or a card tray or card adapter containing the card. .

A card body C carrier 1 card connector 2 card body insertion part 3 housing 4 contact 5 contact 6 mold case 7 shield cover 8 bottom plate part 9 side wall part 10 opening window 11 opening window 12 sliding member 13 coupling piece 14 fixing piece part 15 Elastic contact piece 16 Substrate connection terminal portion 17 Contact portion 20 Fixed piece portion 21 Elastic contact piece portion 22 Base portion 23 Insert portion 24 Through hole 25 Cut 26 Substrate connection terminal portion 27 Cut 28 Connection support portion 29 Fixed end 30 Fixed side piece 31 Contact Part 32 Movable side piece 33 Movable end 40 Sliding contact surface part 41 Buried part 42 Standing piece 43 Overhanging piece 44 Notch 50 Contact 51 Sliding contact surface part 52 Fixed piece part 53 Base part 54 Supporting piece part 55 Linking piece part 56 Sliding contact Surface portion plate portion 60 Opening window 61 Contact member 62 Contact 63 Sliding contact member 64 Sliding contact surface 65 cutting part 66 fixing piece part 67 base part 68 connecting piece part 69 connecting piece part 70 sliding contact member 71 opening window 72 contact 73 elastic contact piece part 74 fixing piece part 75 substrate connection terminal part 76 recess part 77 press fit hole 78 covered Contact surface 79 Press-fit piece 80 Locking protrusion

Claims (7)

A housing having a bottom plate portion made of an insulating synthetic resin, and a card body insertion portion on which the card body is inserted is formed on the bottom plate portion, and formed on the card body protruding from the inner bottom portion of the card body insertion portion. In a card connector comprising a plurality of contacts in contact with the signal transmission terminals made,
The contact has a fixed piece portion fixed to the bottom plate portion by insert molding, a fixed end fixed to the bottom plate portion through the fixed piece portion, and a card having a fixed end that is movable at the other end. A contact portion that contacts the signal transmission terminal of the card body between the fixed end and the movable end of the elastic contact piece. It is formed in an arrangement that floats from the bottom,
The bottom plate portion includes a metal sliding contact member that is exposed on the inner bottom side of the card body insertion portion and integrally includes a sliding contact surface portion disposed below the movable end,
When the card body is inserted into the card body insertion portion, the elastic contact piece is pressed and elastically deformed by the card body, the movable end is slidably in contact with the sliding contact surface portion, and both ends of the elastic contact piece are A card connector characterized by being supported by the bottom plate portion.   A slotted opening window facing the card body insertion / extraction direction is formed in the bottom plate portion, and the sliding contact member is fixed to the housing so that the sliding contact surface portion is disposed inside the opening window, The fixed piece portion of the contact is fixed to the edge portion on one end side of the opening window, and the movable end side end portion of the elastic contact piece portion is inserted on the other end side of the opening window and on the sliding contact surface portion. The card connector according to claim 1.   The card connector according to claim 1, wherein the sliding contact member is integrally provided with an embedded portion that is embedded in the bottom plate portion by insert molding.   The card connector according to claim 3, wherein the embedded portion includes a rising piece raised from a side edge of the sliding contact surface portion and a protruding piece protruding outward from the upper edge of the rising piece.   The card connector according to claim 1, wherein the sliding contact member is provided integrally with the contact.   The contact is integrally provided with a supporting piece portion disposed on the outer peripheral side of the movable end, and is provided with a plate portion for a sliding contact surface portion that is integrally supported on a peripheral edge of the supporting piece portion, and the sliding contact surface portion. The card connector according to claim 5, wherein the sliding contact surface portion is formed under the movable end by folding the plate portion from the periphery of the support piece portion.   The sliding plate material includes a pair of press-fitting portions that are vertically raised from both side edges of the sliding surface portion, and press-fitting both the press-fitting portions into press-fitting holes formed in the bottom plate portion, The card connector according to claim 1, wherein the sliding contact surface portion is fixed to the housing.

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