JP5397643B2 - Manufacturing method of card connector - Google Patents

Description

  The present invention relates to a method of manufacturing 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.

  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 electrically connected via a card connector. Connected.

  Conventionally, 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 into the card body insertion portion. And a signal transmission terminal (pad) formed on one side of the card body comes into contact with the corresponding elastic contact piece of the printed circuit board, by inserting the card body into the card body insertion portion. The card body is electrically connected.

  As a contact used in such a card connector, a piece in which the front end of the elastic contact piece in the card body insertion direction is supported on the bottom of the housing and the other end contact side is lifted from the bottom. When the card body is inserted into the card body insertion part, the card body presses the elastic contact piece, and the elastic contact piece is elastically deformed while supporting the fixed end side. (For example, refer to Patent Document 1).

  However, along with the miniaturization and low profile of mobile phones and smartphones, and the 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 has to be reduced, and the spring constant necessary for obtaining a sufficient contact pressure may not be ensured with the elastic contact piece portion of the cantilever support.

  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 is pressed by the edge of the card body to be pushed down to the elastic contact piece. A card connector has been developed in which when the force is applied, the elastic contact piece is elastically deformed with both ends supported by the housing, and the elasticity (spring constant) of the elastic contact piece is improved. (For example, see Patent Document 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 includes elastic contact pieces in a side view 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. The parts are 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 of the elastic contact piece portion is continuously connected to the back side of the opening window in the card body insertion / removal direction An insertion groove into which the part is movably inserted is formed, and a press-fitting groove that is continuous to the front side of the opening window in the card body insertion / extraction direction and penetrates to the outer edge of the mold case is formed.

  The press-fitting groove is formed with a pair of overhanging portions projecting inward from the side edges in an arrangement opposite to the inner bottom portion, and locking portions overhanging from both side edges of the fixed end portion are formed between the inner bottom portion and the overhanging portion by press fitting. It is inserted in between and fixed to the bottom of the mold case by biting into the inner 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.

  In order to manufacture the card connector configured as described above, a mold case made of an insulating synthetic resin and a contact made of a conductive metal plate material are separately manufactured, and the contact is inserted into the bottom plate portion 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 under both overhanging portions of the press-fitting groove, so that the contact of the mold case It is designed to be incorporated into the bottom plate.

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

  However, in the conventional technology as described above, when the elastic contact piece is pressed against the card body and elastically deformed, the elastic contact piece is supported at both ends of the fixed end and the movable end. Where it is necessary to provide a portion where the movable end portion is supported (in the above-described embodiment, the bottom portion in the insertion groove), in insert molding, a portion where the movable end portion is supported is provided below the movable end of the contact. Since it is very difficult due to the structure of the resin mold, the mold case and the contact are manufactured separately, and then the contact is incorporated into the mold case by insertion. For this reason, the manufacturing has a problem that man-hours are large and work efficiency is poor.

  Furthermore, since the contact is fixed to the mold case by press-fitting the fixed end of the elastic contact piece under the overhanging portion of the press-fit groove, if the overhanging portion is thin, deformation of the resin molded portion due to insufficient strength will occur. For this reason, a certain thickness is required for the overhang and the bottom of the groove, which makes it difficult to reduce the height of the connector.

  Particularly, the elastic contact piece has a structure in which 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, and the stress remains in both inner edges of the press-fitting groove. Therefore, when the card connector is heated through reflow soldering work, etc., there is a possibility that the insulating synthetic resin part around the fixed end part may be deformed. It was necessary to have a certain thickness.

  Further, 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 accordingly, the movable end 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 insulating synthetic resin may be scraped to the sliding movable end, and the movable end is caught by the scraped portion of the inner bottom of the insertion groove, thereby making an elastic contact. The predetermined behavior of the one part is hindered, and there is a concern about deformation of the elastic contact piece.

  In view of such a conventional problem, the present invention can incorporate a contact having an elastic contact piece portion that is elastically deformed by being pressed by a card body and supports both ends of the bottom plate portion into the bottom plate portion of the housing by insert molding. In addition, the present invention has been made for the purpose of providing a method of manufacturing a card connector for manufacturing a card connector that can be reduced in height and can stably move a contact when a card body is inserted into a housing. .

  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. A housing in which a card body insertion portion to be inserted is formed, and a plurality of contacts having elastic contact pieces protruding from an inner bottom portion of the card body insertion portion and contacting a signal transmission terminal formed in the card body. In the card connector manufacturing method, the conductive metal plate material is pressed so as to be detachably supported on the side edge of one of the belt-like carrier bodies, and the one contact is connected via a connecting piece. And a fixed piece portion detachably supported by the side edge of the other carrier body in the band shape, and fixing with one end fixed to the fixed piece portion. end The other end of the elastic contact piece having a movable end that is movable, and a contact portion that is lifted between the fixed end and the movable end of the elastic contact piece. After the press working step of forming the other press member provided with the two carrier bodies, the two carrier bodies are arranged in parallel with a distance from each other, and the movable end of the other contact is arranged on the sliding member The two pressing members are moved as described above, and in this state, the one contact, the slidable contact member, and the other contact are placed in a resin mold to perform insert molding, and the one contact, The sliding contact member and the other contact are incorporated into the bottom plate portion made of an insulating synthetic resin, and the sliding contact surface portion provided in the sliding contact member is exposed to the inner bottom side of the card body insertion portion. Previous Is placed under the movable end, thereafter, is to cut the connecting piece for connecting the between one contact said and the sliding member.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, in the press working step, the two press members are parallel to each other by the one press mold, and the sliding member is parallel to each other. And the movable end of the other contact are formed to be spaced from each other in the direction between the two carrier bodies, and then the two carrier bodies are moved in a direction approaching each other, and the other contact is placed on the sliding member. The movable end of the contact is arranged.

  According to a third aspect of the present invention, in addition to the configuration of the first aspect, in the press working step, the both pressing members are fixedly supported by a side edge of each carrier body so as to be detachable, and one end A fixed end fixed to the fixed piece portion, and an elastic contact piece portion having the other end movable. The contact portion is between the fixed end and the movable end of the elastic contact piece portion. A contact formed in a raised arrangement, and the sliding contact member disposed at a distance from the other carrier body side of the movable end, the sliding contact member and the fixed piece portion being connected to the elastic member After forming into a shape connected by a connecting piece arranged in parallel with the contact piece, the press members are symmetrical to each other and the sliding contact member of one press member is positioned below the movable end of the contact of the other carrier And after each insert molding It is to cut the connecting piece for connecting the contact and slide contact member Les member.

  In addition to the structure of claim 1, 2 or 3, the invention feature of claim 4 is a set of the one contact, the sliding member and the other contact arranged in the direction between the two carrier bodies. Constituting a contact row, arranging the plurality of contact rows in parallel with each other in the longitudinal direction of the carrier body, and appropriately selecting one or more of the plurality of contact rows in the pressing step, and selecting the selected contacts After connecting and cutting the elastic contact piece portion of the one contact constituting the row and performing the insert molding, the one contact constituting the other contact row and the sliding contact member are coupled. Only a piece is cut and removed, and a detection switch in which the sliding contact surface portion is a fixed contact and the movable end of the elastic contact piece portion is a movable contact in the selected contact row portion. It is to form a.

  As described above, the card connector manufacturing method according to the present invention has a bottom plate portion made of an insulating synthetic resin, and a housing in which a card body insertion portion into which a card body is inserted is formed on the bottom plate portion, In a manufacturing method of a card connector comprising a plurality of contacts having elastic contact piece portions protruding from an inner bottom portion of the card body insertion portion and contacting a signal transmission terminal formed on the card body, a conductive metal plate material One of the contacts, which is detachably supported by the side edge of one of the belt-shaped carrier bodies by pressing, and one of the sliding contact members connected to the one contact via a connecting piece A pressing member, a fixed piece part that is detachably supported by the side edge of the other carrier body in the band shape, a fixed end that is fixed to the fixed piece part, and a movable end that is movable at the other end And forming the other press member having the other contact formed by arranging the contact portion to be lifted between the fixed end and the movable end of the elastic contact piece. After the press working step, the two press members are moved so that the two carrier bodies are arranged in parallel with a distance from each other, and the movable end of the other contact is arranged on the sliding member. In this state, the one contact, the slidable contact member, and the other contact are placed in a resin mold to perform insert molding, and the one contact, the slidable contact member, and the other contact are insulatively synthesized. Incorporated into the bottom plate portion made of resin and disposed under the movable end in a state where the sliding contact surface portion provided in the sliding contact member is exposed to the inner bottom side of the card body insertion portion. By cutting the connecting piece that connects the one contact and the sliding contact member, when the card body is inserted into the card body insertion portion, the card body is pressed and elastically deformed, and both ends thereof are bottom plate portions. A contact having an elastic contact piece to be supported on the metal and a metal sliding contact member disposed below the movable end of the contact can be incorporated into the bottom plate portion by insert molding, and accordingly, the card connector has a low profile. In addition, it is possible to prevent the sliding contact portion from being scraped by sliding of the movable end. Moreover, it is not necessary to perform secondary processing of each contact after insert molding, the contact height of each contact is stabilized, and the manufacturing cost can be suppressed.

  In the present invention, in the pressing step, the two pressing members are parallel to each other by one pressing die, and the sliding member and the movable end of the other contact are both carrier main bodies. Each contact is formed by placing the carrier bodies in a direction approaching each other and arranging the movable end of the other contact on the sliding member. Further, the sliding contact member can be formed with one press mold, and the manufacturing cost can be suppressed.

  Further, in the present invention, in the press working step, the two pressing members are a fixed piece portion that is detachably supported on the side edge of each carrier body, and a fixed end that is fixed to the fixed piece portion. An elastic contact piece that is a movable end that can be moved, and a contact formed in an arrangement in which a contact portion is raised between the fixed end and the movable end of the elastic contact piece, and the movable end of the movable end The sliding contact member disposed at an interval on the other carrier body side, and the sliding contact member and the fixed piece portion are connected by a connecting piece arranged in parallel with the elastic contact piece portion. After forming into a shape, the two press members are moved symmetrically with each other so that the sliding contact member of one press member is positioned below the movable end of the contact of the other carrier. Contact and sliding contact By cutting the connecting piece that connects the material, both ends of the elastic support piece portions of the pair of contacts arranged in the card body insertion direction can be formed to be supported when the card body is inserted, and each contact can be moved. A metal sliding contact member can be arranged below the end.

  In the present invention, the one contact, the slidable contact member, and the other contact arranged in the direction between the two carrier bodies constitute a set of contact rows, and the plurality of contact rows are parallel to each other. In the press working step, one or more of the plurality of contact rows are selected as appropriate, and the elastic contact piece portion of the one contact constituting the selected contact row is cut. And after the insert molding is performed, only the connecting piece connecting the one contact constituting the other contact row and the sliding contact member is cut and removed, and the selected contact row portion is removed. Forming a detection switch in which the sliding contact surface portion is a fixed contact and the movable end of the elastic contact piece portion is a movable contact. The number and arrangement of contacts can be made to correspond to the number and arrangement of signal transmission terminals formed on the card body, and a detection switch for detecting the card body insertion state using unnecessary contacts can be provided. As a result, there is no need to provide a separate detection switch, thereby saving space and reducing the number of parts.

It is a perspective view which shows an example of the card connector manufactured by this invention method. 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 | curd body, Comprising: (a) is 6 PIN type, (b) is 8 PIN type. It is a top view which shows the state which removed the shield cover of the housing in FIG. 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. FIG. 2 is an enlarged longitudinal sectional view showing a state where a card body is inserted into the card connector in FIG. 1. (A) is a top view for demonstrating the press work process in this invention method, (b) is a top view for demonstrating the press member movement process. (C) is a top view for demonstrating an insert molding process same as the above, (d) is a top view for demonstrating the connection piece cutting process. It is a top view of the state which removed the shield cover which shows an example of the card connector manufactured by the other embodiment of the method of this invention. It is a perspective view which shows arrangement | positioning of the contact member in FIG. It is a top view which shows the press member used for the method of this invention same as the above. It is a top view for demonstrating a press member moving process same as the above. It is a top view of the state which removed the shield cover which shows an example of the card connector manufactured by the further another aspect of the manufacturing method of the card connector which concerns on this invention. (A) is a top view for demonstrating the other embodiment of the manufacturing method of the card connector which concerns on this invention, (b) is a top view for demonstrating the press member moving process. (C) is a top view for demonstrating an insert molding process same as the above, (d) is a top view for demonstrating the connection piece cutting process.

  Next, a method for manufacturing a 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 manufactured by the method of the present invention, 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 rows in which a plurality of signal transmission terminals a1, a1... Are arranged in the card width direction are formed in parallel with a gap in the entire card length direction. This card body A may have different numbers and arrangements of signal transmission terminals a1, a1,..., Even if they have the same outer shape. For example, FIG. On the other hand, it is 8 PIN in FIG.

  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.

  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, in the mold case 6, the back side contacts 4, 4... Made of a conductive metal plate material, the front side contacts 5, 5... And the sliding contact members 12, 12. Integrated into the bottom plate 8, the contacts 4, 4 ... on the back side are arranged in parallel with each other in the card insertion direction in accordance with the positions of the open windows 10, 10 ... on the back side of the bottom plate 8 Are arranged in parallel with each other while facing the card insertion direction in accordance with the position of each opening window 11, 11.

  In the figure, reference symbol E denotes a stopper member, which is incorporated into the bottom plate portion 8 by insert molding, and the leading edge of the card body is stoppered to the rising piece Ea that is raised to the back side in the card body insertion direction. It has come to be.

  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 portion 20 includes a rectangular flat plate-like base portion 22 and a pair of insert portions 23 and 23 extending from both side portions of the base portion 22 in the card body insertion direction, and is formed in a U shape in plan view. Yes.

  Each insert part 23, 23 is formed in an elongated plate shape facing the card body insertion direction, and a long hole-like through hole 24 is formed in the central part thereof.

  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 has a fixed end 29 arranged on one end side in the opening windows 11, 11. 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. 29 and the movable end 33 are formed so that the contact portion 31 is 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. When the card is not inserted, the movable end 33 is detached from the sliding contact surface portion 40.

  As shown in FIG. 9, the sliding members 12, 12... Are formed of a conductive metal plate material, a flat 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 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. By being embedded in both side edges of the other end of the windows 11, 11... And substantially in the middle in the thickness direction of the bottom plate portion 8, the sliding contact surface portion 40 is disposed on the inner bottom portion of the opening window 11. It is exposed to the inner bottom side of the card body insertion portion 2 and is disposed under 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. 10, 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 corresponding thereto. 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 with the 33.

  The card connector manufacturing method configured as described above forms the contacts 4, 5 and the sliding contact member 12 made of a conductive metal material by pressing (pressing process), and after each pressing process, The position of the member is adjusted (press member moving process), and a mold case 6 in which the contacts 4, 5 and the sliding contact member 12 are integrated is formed by insert molding (insert molding process, connecting piece cutting process), The housing 3 is formed by combining the mold case 6 and the shield cover 7.

  In the pressing process, a pair of band-shaped carrier bodies formed in parallel arrangement with a space between each other as shown in FIG. 11A by pressing one conductive metal plate material with one pressing die. One contact 4, the slidable contact member 12, and the other contact 5 arranged in the direction between both carrier bodies between C1 and C2 are set as a set of contact rows, and the plurality of contact rows D1 to D4 are carriers in parallel to each other. A set of press members P1 and P2 constituting one card connector 1 is formed so as to be arranged side by side in the longitudinal direction of the main body.

  Further, the press-molded product composed of this set of press members P1 and P2 is continuously formed in the longitudinal direction of the carrier body so as to cope with mass production. In addition, the code | symbol C3 in a figure is a carrier connection member which connects between both carrier main bodies C1 and C2, and partitions off between each press-formed product.

  One of the press members P1 is a plurality of contacts 4, 4... Arranged in parallel to each other and detachably supported on the side edge of one carrier body, and a connecting piece 13 connected to each one of the contacts 4. It is shape | molded by the shape provided with the to-be-slidably contacted member 12,12 ... connected.

  The stopper member E is connected to one of the contacts 4 and 4 constituting the contact rows D2 and D3 via connecting pieces 50 and 50.

  Each of the contacts 4, 4... Has a frame-shaped fixed piece 14, an elastic contact piece 15 having a shape cut and raised obliquely upward from the inner edge of the fixed piece 14, and one side edge of the fixed piece 14. The carrier body C1 is supported by the carrier-side connecting piece 51 that is formed into a shape including the board connection terminal portion 16 that extends more outward and is formed integrally with the tip portion of the board connection terminal portion 16. ing.

  The connecting piece 13 that connects the contact 4 and the slidable contact member 12 includes a bent portion that is bent downward from the edge of the fixed piece portion 14 on the slidable contact member 12 side, and the other end in the horizontal direction. And a horizontal portion bent toward the carrier body C2 side, the tip of the horizontal portion being continuous on the same plane as the sliding contact surface portion 40 of the sliding contact member 12, and the sliding contact surface portion 40 and the horizontal portion And T-shaped.

  Further, by providing a step through the bent portion, the sliding contact surface portion 40 is arranged at a position lower than the fixed piece portion 14 of the contact 4.

  The other pressing member P2 has a fixed piece 20 that is detachably supported by the side edge of the other band-shaped carrier body C2, and a fixed end 29 having one end fixed to the fixed piece 20, and the other end moves. A plurality of other elastic contact pieces 21, each of which has a movable end 33, and a contact portion 31 is formed between the fixed end 29 and the movable end 33 of the elastic contact piece 21. The contacts 5, 5... Are formed in a shape provided in parallel with each other.

  Each contact 5 is formed in a shape in which the base end edge side portion of the fixed piece 20 and the other carrier body C2 are connected by a pair of connecting pieces 52, 52 parallel to each other, and cuts the connecting pieces 52, 52. As a result, the contacts 5, 5... Are separated from the carrier body C2.

  At the time of this pressing process, the outer shape of each part is formed by punching one conductive metal plate material, and the structure of bending the parts, the sliding contact member 12 and the other contact 5 The movable end 33 is formed so as to be spaced in the direction between the two carrier bodies.

  Further, at the time of this press working step, the contact line D1 at the end of the plurality of contact lines D1 to D4 is selected, and the elastic contact piece 15 of one contact 4 constituting the selected contact line D1 and The elastic contact piece 21 of the other contact 5 is cut and removed, so that it corresponds to a 6 PIN card body with an 8 PIN card body mold.

  Next, after passing through the above-described pressing process, the carrier coupling bodies C3 and C3 are cut and removed, the press members P1 and P2 are made independent from each other, and the carrier bodies C1 and C2 are spaced in parallel with each other. Both press members P1 and P2 are moved so that the movable end 33 of the other contact 5 is disposed on the sliding contact member 12.

  That is, both the press members P1, P2 are horizontally moved in the direction between the carrier bodies C1, C2 so as to approach each other, and the other contact 5 is placed on the sliding contact surface portion 40 of each sliding contact member 12, 12. The movable end 33 is disposed.

  And as shown in FIG.12 (c), both press member P1, P2, ie, one contact 4, the to-be-slidable contact member 12, and the other contact 5 is installed in a resin molding die in that state, and insert molding is carried out. The mold case 6 is molded, and one of the contacts 4, 4..., The sliding contact members 12, 12... And the other contacts 5, 5. Incorporate into.

  In the resin molding die used for insert molding, the bottom plate portion 8 does not have a resin molded portion protruding inward from the inner edge portions of the opening windows 10 and 11, and the elastic contact piece portion 21 of the other contact 5 is movable. By forming the portion that supports the end 33 with the sliding contact member 12 made of a conductive metal plate material, it is formed in a shape that can be divided in the thickness direction of the bottom plate portion after insert molding.

  By this insert molding, opening windows 10, 10... Are formed on the back side of the bottom plate portion 8 in the card insertion direction, and the fixed piece portion 14 of one contact 4 is the inner edge portion of the opening window 10 and the bottom plate portion. It is embedded at a substantially intermediate position in the plate thickness direction, the base end portion of the elastic contact piece 15 is supported by the bottom plate portion 8 via the fixed piece portion 14, and the contact portion 17 formed at the tip of the elastic contact piece 15 is the opening window 10. It protrudes from the bottom plate part 8 through and is arranged in a state of being lifted from the inner bottom part of the card body insertion part 2.

  Further, by insert molding, the opening windows 11, 11... Are formed on the front side of the bottom plate 8 in the card insertion direction, and the fixed piece 20 is embedded in the front side of the opening window 11 in the card insertion direction. The fixed end 29 is disposed on one end side in the opening window 11, and the contact portion 31 side of the fixed side piece 30 extending obliquely upward from the fixed end 29 passes through the opening window 11 from the inner bottom surface of the bottom plate portion 8 to the card body insertion portion 2. The contact portion 31 formed between the fixed end 29 of the elastic contact piece 21 and the movable end 33 is formed so as to be lifted from the inner bottom portion of the card body insertion portion 2.

  Also, 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. Inserted above, the fixed end 29 and the movable end 33 are arranged in the opening windows 11, 11.

  Furthermore, the embedded portions 41 and 41 of the sliding contact member 12 are embedded on both sides of the opening window 11 in the card insertion direction, and the sliding contact surface portion 40 passes through the opening window 11 toward the inner bottom side of the card body insertion portion 2. The sliding contact member 12 is fixed to the bottom plate portion 8 so as to be exposed and disposed below the movable end 33 of the elastic contact piece portion 21.

  Next, as shown in FIG. 12 (d), tie bar cutting is performed at a predetermined position, the connecting piece 13 is cut, the one contact 4 and the sliding contact member 12 are separated and insulated, and each contact 4 , 5 and the carrier-side connecting pieces 51, 52 that connect the carrier bodies C1, C2 are cut off, and the mold case 6 is separated from the carrier bodies C1, C2. Further, the connecting piece 50 is cut to separate the contacts 4 and 4 from the stopper member E.

  Finally, the housing 3 is assembled by combining the mold case 6 and the shield cover 7 to complete the card connector 1.

  According to the method of the present invention, each of the contacts 4 and 5 can be formed into a completed shape in the press working step, and can be incorporated into the bottom plate portion 8 by insert molding. There is no need to perform processing, and the contacts 4 and 5 can be formed in a state where the contact height is stable.

  Further, according to the method of the present invention, the one contact 4, the sliding contact member 12, and the other contact 5 can be incorporated into the bottom plate portion 8 by insert molding, so that the fixing strength is higher than when the contacts are fixed by press-fitting. Therefore, the bottom plate can be thinned.

  Next, another embodiment of the card connector manufacturing method 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 respect to each other.

  In order to manufacture this mold case 6, first, a pair of press members P3 and P3 having the same shape are formed by pressing a conductive metal plate material in a pressing process.

  In this pressing process, the pair of press members P3 and P3 may be formed in a symmetrical arrangement with one press mold, or the one press member P3 may be formed with one press mold. Good.

  As shown in FIG. 15, the press member P <b> 3 includes a contact 62 supported by a belt-like carrier body C and a sliding contact member 63 for mating contact, and connects the contact 62 and the sliding contact member 63. A plurality of contact members 61, 61... Connected by the piece 70 are formed in parallel with each other along the longitudinal direction of the carrier body C.

  The contact 62 has a fixed piece 66 that is detachably supported on the side edge of the carrier main body C, and an arcuate elastic shape in which an arc-shaped contact portion 31 is arranged on the top of which one end is fixed to the fixed piece 66. The contact piece 21 is integrally formed.

  The contact 62 is integrally connected to the carrier main body C by carrier-side connecting pieces 71 and 71 at the edge of the fixed piece 66.

  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.

  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 includes a slant piece that is bent obliquely downward from a crease formed on the front side portion in the card body insertion direction, and a connection piece that extends from the front end of the slant piece toward the horizontal card body insertion side. The connection piece 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 wiring board.

  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.

  Then, the connecting piece portion 68 of the contact 62 and the connecting piece portion 69 of the sliding contact member 63 are formed continuously and integrally with each other via the cutting portion 65, and the sliding contact member 63 and the fixed piece portion 66 are elastically formed. It is formed in a shape connected by a connecting piece 70 arranged in parallel with the contact piece portion 21.

  Next, as shown in FIG. 16, the pair of press members P3 and P3 are arranged so that the carrier main bodies C and C are parallel to each other with a space therebetween, and are symmetrical to each other and one sliding contact surface portion 64 is the other. The contact 62 is moved to be positioned below the movable end 33.

  At this time, the sliding members 63 and 63 interfere with each other only by horizontally sliding the press members P3 and P3 in the direction between the carrier bodies C and C, so that the carrier bodies C and C are brought closer to each other. When the carrier body C is moved, the carrier body C is twisted to rotate the contact members 61 and 61 around the base shaft in the direction between the two carrier bodies, so that the sliding contact members 63 and 63 are avoided from each other. By rotating, it is moved in the direction between the two carrier bodies while avoiding interference with each other, and one slidable contact surface portion 64 is positioned below the movable end 33 of the other contact 62.

  As a result, one contact 62 arranged in the direction between the two carrier bodies, the sliding contact members 63 and 63, and the other contact 62 form a pair of contact rows, and the plurality of contact rows are parallel to each other in the longitudinal direction of the carrier body. Arranged side by side.

  In this state, the press members P3 and P3 are placed in a resin mold and insert molding is performed to mold the mold case 6 and open both sides of the base 67 of each contact 62, 62 ... The fixed side is embedded in both side edges of the mold case side edge of the window 60, the fixed end 29 is disposed on one end side in the open windows 60, 60, and extends obliquely upward from the fixed end 29. The contact portion 31 side of the piece 30 projects from the inner bottom surface of the bottom plate portion 8 through the opening window 60 to the card body insertion portion 2, and the contact portion 31 formed between the fixed end 29 and the movable end 33 of the elastic contact piece portion 21 is a card. It is formed in an arrangement that is raised above the inner bottom of the 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 inserted on the other end side of the opening window 60 and the sliding contact surface portion 64, The fixed end 29 and the movable end 33 are disposed in the opening window 60.

  On the other hand, the sliding contact surface portion 64 is disposed inside the opening window 60, exposed to the inner bottom side of the card body insertion portion 2 through the opening window 60, and disposed below the movable end 33 of the elastic contact piece portion 21.

  Then, after the insert molding, as shown in FIG. 13, by cutting and removing the cutting portion 65 at a predetermined position, the contact 62 and the sliding contact member 63 of each contact member 61 are separated and insulated. . Further, the mold case 6 is separated from the carrier bodies C, C by cutting the carrier side connecting pieces 71, 71.

  Finally, the housing 3 is assembled by combining the mold case 6 and the shield cover 7 to complete the card connector.

  Further, in the method of the present invention, as shown in FIGS. 17 to 19, the endmost contact row D1 is selected from among the plurality of contact rows D1 to D4, and the card body A is inserted into the contact row D1 portion. You may make it form the detection switch 80 which detects a state. In addition, the same code | symbol is attached | subjected to the structure similar to the above-mentioned Example, and description is abbreviate | omitted.

  In order to form the detection switch 80, first, in the pressing process, the contact line D1 at the end of the plurality of contact lines D1 to D4 is selected, and one of the contacts constituting the selected contact line D1 is selected. Only the elastic contact piece 15 of 4 is cut and removed.

  Next, as shown in FIGS. 18B to 19C, the press members P1 and P2 are horizontally moved in the direction between the carrier bodies C1 and C2 in the direction in which the carrier bodies C1 and C2 approach each other. The movable end 33 of the other contact 5 is disposed on the sliding contact surface portion 40 of the sliding contact member 12, 12..., And in this state, the press members P1, P2 are placed in the resin molding die and insert molding is performed. I do.

  Finally, as shown in FIG. 19 (d), only the connecting piece 13 connecting the one contact 4 and the sliding contact member 12 constituting the other contact rows D2, D3... Is cut and removed. As a result, one of the contacts 4 constituting the other contact rows D2 and D3 and the sliding contact member 12 are insulated, and the sliding contact surface portion 40 is fixed to the selected contact row D1 portion as a fixed contact, elastic contact piece. A detection switch 80 having the movable end 33 of the portion 21 as a movable contact is formed.

  That is, in the selected contact row D <b> 1, the state in which the sliding contact member 12 and the fixed piece portion 14 of one contact 4 are electrically connected via the connecting piece 13 is maintained.

  In the card connector thus manufactured, when the card body A is inserted into the card body insertion portion 2, the elastic contact piece 21 of the other contact 5 constituting the selected contact row D1 is pressed against the card body A. The movable contact 33 is slidably contacted with the fixed contact 40 due to elastic deformation, and the substrate connection terminal portion 16 constituting one contact 4 and the substrate connection terminal portion 26 constituting the other contact 5 are electrically connected to each other to detect the switch. 80 is turned on, and the insertion state of the card body A can be detected.

  On the other hand, when the card body A is pulled out from the card body insertion portion 2, the elastic contact piece 21 of the contact 5 is restored by elasticity, the movable contact 33 is detached from the fixed contact 40, and the detection switch 80 is turned off.

  Thus, by selecting one contact row D1 out of the plurality of contact rows D1 to D4 and forming the detection switch 80 in the contact row D1 portion, the card body A is formed with one press mold. The number and arrangement of the contacts 4 and 5 can be made to correspond to the number and arrangement of the signal transmission terminals a1, a1..., And it is not necessary to provide a separate detection switch. The number of points can be reduced.

A card body C carrier body D contact row P press member 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 Connecting piece 14 Fixed piece portion 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 Fixing End 30 Fixed side piece 31 Contact portion 32 Movable side piece 33 Movable end 40 Sliding contact surface portion 41 Buried portion 42 Standing piece 43 Overhanging piece 44 Notch 50-52 Connection piece 60 Opening window 61 Contact member 62 Contact 63 Sliding contact member 64 Sliding contact surface portion 65 Cutting portion 66 Fixed piece portion 67 Base portion 68 Connection piece portion 9 connecting piece 70 connecting piece

Claims (4)

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 method of manufacturing a card connector comprising a plurality of contacts having elastic contact pieces that come into contact with the signal transmission terminals made,
By pressing the conductive metal sheet,
One press member provided with one contact that is detachably supported on the side edge of the one carrier body in a strip shape, and a sliding contact member that is connected to the one contact via a connecting piece;
A fixed piece part that is detachably supported on the side edge of the other carrier body of the belt-like shape, and an elastic contact piece part that has one end fixed to the fixed piece part and a movable end that is movable at the other end. And after undergoing a pressing process step of forming the other pressing member having the other contact formed in the arrangement in which the contact portion is lifted between the fixed end and the movable end of the elastic contact piece portion ,
The two press members are moved so that the two carrier bodies are arranged in parallel with a distance from each other, and the movable end of the other contact is arranged on the sliding member,
In this state, the one contact, the slidable contact member, and the other contact are placed in a resin mold to perform insert molding, and the one contact, the slidable contact member, and the other contact are insulative synthetic resin. In the state where it is incorporated in the bottom plate portion, and the sliding contact surface portion provided in the sliding contact member is disposed below the movable end in a state of being exposed on the inner bottom side of the card body insertion portion,
Thereafter, the card connector manufacturing method is characterized in that the connecting piece connecting the one contact and the sliding contact member is cut.   In the pressing process, the two pressing members are paralleled to each other by one pressing mold, and the sliding member and the movable end of the other contact are spaced apart in the direction between the two carrier main bodies. 2. The method of manufacturing a card connector according to claim 1, wherein the carrier body is moved in a direction approaching each other, and the movable end of the other contact is disposed on the sliding member. . In the press working step, the press members are fixed piece portions supported so as to be separable on the side edges of the carrier bodies, and fixed ends with one end fixed to the fixed piece portion, and the other ends are movable. An elastic contact piece as a movable end, and a contact formed in an arrangement in which a contact portion is raised between the fixed end and the movable end of the elastic contact piece, and the other carrier body side of the movable end The sliding contact member disposed at a distance from the sliding contact member, and the sliding contact member and the fixed piece portion are formed into a shape connected by a connecting piece disposed in parallel with the elastic contact piece portion. ,
The press members are moved symmetrically with each other so that the sliding contact member of one press member is positioned below the movable end of the contact of the other carrier,
The manufacturing method of the card connector of Claim 1 which cut | disconnects the connection piece which connects each contact of each said press member, and a to-be-slidable contact member after insert molding. The one contact arranged in the direction between the two carrier bodies, the slidable contact member and the other contact constitute a set of contact rows, and the plurality of contact rows are arranged in parallel in the longitudinal direction of the carrier body. Let
In the press working step, one or more of the plurality of contact rows are appropriately selected, and the elastic contact piece portion of the one contact constituting the selected contact row is cut and removed, and the insert molding is performed. After that, only the connecting piece connecting the one contact constituting the other contact row and the sliding contact member is cut and removed, and the sliding contact surface portion is fixed to the selected contact row portion. 4. A method of manufacturing a card connector according to claim 1, wherein a detection switch is formed in which the movable end of the elastic contact piece is a movable contact.

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