JP4268059B2 - Card connector device - Google Patents

Description

  The present invention relates to a card connector used in various types of portable information terminals such as mobile phones and PCs, memory compatible devices such as digital cameras and digital AV devices, and small memory cards and card type cartridges used in home game devices. It relates to the structure of the device.

  IC cards (including card-type cartridges) and memory cards are widely used as cards incorporating ICs and memories. A card connector device is used to electrically connect the IC card, memory card, and the like to a circuit board on the device side.

  As a conventional card connector device, a housing body into which a card can be inserted and removed, a connector terminal that is arranged in parallel with the housing body and can come into contact with a contact portion of the card, and can be moved along with insertion and ejection of the card Two types of springs comprising a slider, a compression spring and a tension spring that urges the slider and the card in the ejection direction, a lock member that locks the slider in the card insertion position, and a housing cover that covers the opening of the housing body. Among them, there is known a card connector device that applies an elastic force when one of the cards and the connector terminal is disconnected, and applies the elastic force that urges the card to the ejection position after the card is disconnected ( For example, see Patent Document 1).

Hereinafter, the structure of a conventional card connector device will be described with reference to the drawings.
11 and 12 show the structure of a conventional card connector device, FIG. 11 is an exploded perspective view of the card connector device, and FIG. 12 is a plan view of the card connector device.

  The card connector device is provided with a housing 22 into which the card 21 can be inserted and removed. The housing 22 includes a housing body 23 and a housing cover 24 covering the housing main body 23. The housing body 23 includes a thin plate-like bottom plate 25, a front wall 26 formed at the front end portion, and a side wall 27 formed at the side portion. Ten terminals 28 are arranged in parallel on the front end side of the bottom plate 25. Is arranged.

  An arm receiving groove 34 is formed inside the front wall 26, and a small-diameter round groove 35 (see FIG. 12) is formed in the arm receiving groove 34. A front end portion 37 of an arm 36 is pivotally supported in the circular groove 35. Further, a spring receiving recess 39 is formed in the front wall 26. Further, a corner wall 40 is formed behind the bottom plate 25, and a spring accommodating groove 41 is formed in the corner wall 40.

  The housing cover 24 is bent downward on both sides and is fitted on the housing body 23. Also, an arm presser 43 is bent at the edge of the housing cover 24, and the arm presser 43 presses the arm 36 downward.

  A slider 44 is provided at the end portion 29 of the bottom plate 25. The slider 44 projects inward from the front end portion of the guide portion 45 and the front end portion of the card 21 so that the front end of the card 21 can come into contact therewith. A contact portion 46. A heart cam 47 having an engagement recess 48 is formed on the upper surface side of the guide portion 45, and the rear end portion 38 of the arm 36 can swing along the heart cam 47.

  A spring accommodating groove 49 is formed at the rear end portion of the guide portion 45. The front end portion and the rear end portion of the tension coil spring 51 are accommodated and supported in the spring accommodating grooves 49 and 41, respectively. Further, a notch portion 56 is formed in the contact portion 46, and a rear end portion of the compression coil spring 58 is engaged with the notch portion 56.

  When the card 21 is inserted, the slider 44 moves forward against the elastic force of the tension spring 51 as the card 21 is inserted, and the compression spring 58 contacts the spring receiving recess 39 and is compressed. Then, the rear end portion 38 of the arm portion 36 engages with the engagement recess 48 of the heart cam 47, the slider 44 and the card 21 are locked at the insertion position, and the card 21 and the terminal 28 come into contact with each other.

  In order to eject the card 21 from this state, by further pushing the card 21 in the insertion position, the rear end portion 38 of the arm portion 36 is disengaged from the engagement recess 48 and the slider 44 and the card are pressed by the elastic force of the compression spring 58. After the card 21 and the terminal 28 are separated from each other, the slider 44 and the card 21 are moved back to the discharge position by the elastic force of the tension coil spring 51.

JP 2002-367720 A

  However, in the configuration of the conventional card connector device, since the two types of coil springs urge the slider and the card in the card ejection direction, the card is momentum due to an unexpected factor when the card is ejected. There was a problem that it dropped beyond the discharge position. Further, when an impact is applied to the connector device, the lock may be released and the card may pop out.

  Accordingly, an object of the present invention is to solve the above-described problems and to provide a card connector device that can prevent the card from popping out by reducing the moment when the slide member retracts when the card is ejected.

In order to solve the above-described problems, the present invention provides a housing having a housing portion into which a card is inserted and a side wall arranged at one end of the housing portion so as to be able to come into contact with the external contact portion of the card. Connector terminals, a slide member that can move in the card insertion and ejection direction as the card is inserted and ejected, a biasing member that biases the slide member in the ejection direction, and the biasing member that biases the slide member A heart-shaped cam groove and a lock member that hold the card insertion position against a biasing force of the member, and are opposed to a part of the slide member and a part of the slide member on the discharge direction side of the slide member and the space formed at a position between the portion of arranged the housing, when the slide member is moved to the card ejection position by the biasing member, the discharge direction of the sliding member Was a structure in which an elastic member that emits bullet in the opposite direction.

As a second solution, the elastic member is formed of a metal plate spring having spring properties.
As a third solution, the elastic member is formed integrally with a metal leaf spring that urges the lock member to the heart-shaped cam groove.

  As described above, the card connector device of the present invention includes a housing having a storage portion into which a card is inserted, a connector terminal that is arranged in parallel on one end side of the storage portion and can contact an external contact portion of the card, A slide member that can move in the card insertion and ejection direction along with card insertion and ejection, a biasing member that biases the slide member in the ejection direction, and a card that resists the biasing force of the biasing member. A heart-shaped cam groove and a lock member that are held in the insertion position are provided. When the slide member is moved to the card discharge position by the biasing member between the housing and the slide member, the slide member is opposite to the discharge direction. Since the elastic member that repels in the direction is provided, when the slide member is discharged by the urging force of the urging member when the card is discharged, the slide member is discharged by the elastic force of the elastic member. It is possible to reduce the momentum to return to, it is possible to prevent the jumping out of the card at the time of discharge of the card.

In addition, since the elastic member is integrally provided on the card insertion port side of the housing, the slide member and the housing can be elastically contacted when the card is ejected with a simple configuration in which only the elastic member is provided in the housing. .
In addition, since the elastic member is integrally provided on the card insertion port side of the slide member, the slide member and the housing can be elastically contacted when the card is ejected with a simple configuration in which the elastic member is provided on the slide member. Can do.

In addition, since the elastic member is formed of a metal plate spring having a spring property, it is possible to obtain a reliable elastic force with a simple configuration and to reduce the size.
Further, since the elastic member is formed integrally with the metal leaf spring that urges the lock member to the heart-shaped cam groove, the number of parts can be reduced and the assemblability can be improved.

  Embodiments of the present invention are shown in FIGS. 1 is a plan view of a card connector device, FIG. 2 is a perspective view of a leaf spring and an elastic member, FIG. 3 is a plan view of the card connector device at a card discharge position, and FIG. 5 is a plan view of the card connector device at the card insertion position, FIG. 6 is a partial detailed view of the discharge mechanism, FIG. 7 is a sectional view taken along line 7-7 in FIG. 3, and FIG. FIG. 9 is an enlarged cross-sectional view, FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. 5, and FIG.

  1 and 2, the housing 1 is formed in a rectangular box shape that is opened at the front and top with an insulating material such as synthetic resin. A housing portion 1a is provided at the center of the housing 1, and a card insertion portion 1b extending to the front surface of the housing 1 is formed in the housing 1 so as to be continuous with the housing portion 1a. A plurality of connector terminals 2 made of a conductive metal material having elasticity are arranged side by side in the storage portion 1a.

  The connector terminal 2 is disposed on the back side of the storage portion 1a in the card insertion direction, and has a flat plate-like base portion, and a connection piece 2a and a contact piece formed by bending in a direction facing each other from the base portion. 2b. In the connector terminal 2, the connection piece 2a formed on one end side is disposed so as to be exposed outward from the rear outer surface of the housing 1, and the connection piece 2a is provided in an external circuit such as an electronic device. Signals are transmitted by being soldered and fixed to a circuit pattern on the substrate.

  Further, the contact piece 2b formed to extend to the other end side of the base portion of the connector terminal 2 is disposed so as to protrude into the storage portion 1a. Further, a contact portion 2c connected to an external contact portion of the card 10 described later is formed on the tip side of the contact piece 2b.

  In addition, a spring accommodating portion 1c that accommodates a biasing member 3 formed of a coil spring that biases a slide member 8 (described later) in the card discharge direction is formed on one side of the housing 1. A holding portion 1d that holds the leaf spring 4 and the elastic member 5 formed integrally with the leaf spring 4 is formed on one end side facing the spring accommodating portion 1c. Further, in the vicinity of the holding portion 1d, one end of a lock member 7 made of a metal wire slidably contacted with a heart-shaped cam groove 8c formed on one end side of the slide member 8 described later is pivotally supported. A shaft hole (not shown) is formed, and the other end of the lock member 7 is urged by the leaf spring 4 to the heart-shaped cam groove 8c.

  The plate spring 4 and the elastic member 5 are made of a thin metal plate having spring properties, and the substrate portion 6 is integrally formed. Of these, the plate spring 4 is bent at a right angle from the substrate portion 6 to urge the lock member 7. A flat plate arm portion 4a is formed to extend. On the other hand, the elastic member 5 is bent at a right angle from the substrate portion 6, and then the tip thereof is bent into a substantially U shape to form a spring portion 5a having spring properties. The plate spring 4 and the elastic member 5 are configured such that the base plate portion 6 is engaged with the holding portion 1d in a state where the flat plate arm portion 4a and the spring portion 5a protrude into the housing portion 1a of the housing 1. Is held in.

  Thus, since the elastic member 5 is formed of a metal plate spring made of a thin metal plate having spring properties, a reliable elastic force can be obtained with a simple configuration and can be formed of a plate spring. The storage space may be smaller than that of the housing 1, and the housing 1 can be downsized. Further, since the elastic member 5 is formed integrally with the plate spring 4 made of a thin metal plate that urges the lock member 7 to the heart-shaped cam groove 8c, the number of parts can be reduced and the assemblability can be improved. It has become a thing.

  The slide member 8 is formed in a substantially inverted L shape from an insulating material such as synthetic resin. The slide member 8 is formed with a card abutting portion 8a projecting in a direction perpendicular to the card insertion direction on the front end side in the card insertion direction and a card 10 to be described later. In the center of the member 8, a spring locking portion 8b accommodated in the spring accommodating portion 1c of the housing 1 and to which one end portion of the biasing member 3 is locked is provided.

  Further, a heart-shaped cam groove 8c is formed on the rear end side of the slide member 8 and is pivotally supported at one end side of the housing 1 so that the other end of the lock member 7 is slidably contacted. Has been. The slide member 8 is held at the card insertion position against the urging force of the urging member 3 by the cooperation of the lock member 7 and the heart-shaped cam groove 8c. .

A flat receiving portion 8d is provided at the rear end portion of the slide member 8. When the slide member 8 is urged to the card discharge position by the urging member 3, the receiving portion 8 d comes into contact with the spring portion 5 a of the elastic member 5 held by the holding portion 1 d of the housing 1. It has become.
As described above, since the elastic member 5 is integrally provided on the card insertion port side of the housing 1, the elastic member 5 is simply provided in the housing 1, and the card 10 is ejected when the card 10 is ejected. The slide member 8 and the housing 1 can be brought into elastic contact.

Further, a protrusion 8e is provided at the rear end of the slide member 8 (see FIGS. 5 and 6). When the slide member 8 is urged to the card discharge position by the urging member 3, the receiving portion 8d and the spring portion 5a come into contact with each other, and then the projecting portion 8e comes into contact with the housing 1. Has become.
Thus, since the receiving portion 8d and the spring portion 5a come into contact with each other before the protrusion 8e and the housing 1 come into contact with each other, the moment when the slide member 8 is urged by the urging force of the urging member 3 is applied. Since it does not contact the housing 1 as it is, the impact when the housing 1 and the slide member 8 contact each other is mitigated. Further, since the biasing force in the card discharge direction of the biasing member 3 generates a biasing force stronger than the biasing force in the card insertion direction of the spring portion 5a, the protrusion 8e In contact with the housing 1, the slide member 8 is positioned and held at the card discharge position.

  Further, the one side surface portion of the slide member 8 is engaged with a positioning recess 10b provided on the side surface portion of the card 10 to be described later, which is accommodated in contact with the card contact portion 8a. An engagement piece 9 made of a metal plate or the like having an adhesive is fixed. When the card 10 is inserted, the card 10 is surely positioned at the card insertion position by the spring property of the engagement piece 9.

  Although not shown, a cover member made of a metal plate is attached to the upper surface side of the housing 1 so as to cover the opening on the upper surface side of the housing 1. The cover member is formed so as to cover the upper surface of the connector terminal 2 disposed in the housing portion 1a of the housing 1, and also serves as a shield plate for preventing intrusion of radiation noise from the outside. It has become a thing.

  As shown in FIG. 3, an integrated circuit (IC) is housed in the card 10 and is widely used as a recording medium for electronic devices such as various information terminals and game machines. A plurality of external contact portions (not shown) are formed on one surface of one surface of the card 10, and the external contact portions are disposed in the housing portion 1 a of the connector terminal 2. By making contact with the contact piece 2b, various information processing with an externally connected electronic device is performed.

  Further, a notch portion 10a having an inclined surface is formed at the tip end portion of the card 10, and the tip end portion of the card 10 including the notch portion 10a is in contact with the card contact portion 8a of the slide member 8. It is a contact part. Further, a concave portion 10b for positioning is formed on one side surface portion of the card 10 on the side where the notch portion 10a is formed. When the card 10 is inserted into contact with the card contact portion 8a of the slide member 8, the engagement is provided in the concave portion 10b with a spring property provided on one side surface of the housing portion of the slide member 8. The card 10 is held in the accommodating portion of the slide member 8 by the engagement of the mating piece 9.

  When the card 10 is inserted into the accommodating portion of the slide member 8, the tip of the card 10 abuts against the card abutting portion 8 a of the slide member 8, so that the slide member 8 is inserted into the card 10. Accordingly, it is formed to be movable in the card insertion direction.

Next, the operation when the card 10 is inserted into the connector device will be described with reference to FIGS.
First, in the initial state shown in FIG. 1, that is, when the card 10 is not inserted, the slide member 8 is urged in the card ejection direction by the urging force of the urging member 3. At this time, the slide member 8 has a receiving portion 8d in contact with the spring portion 5a of the elastic member 5 held by the holding portion 1d of the housing 1 and a protrusion 8e in contact with the housing 1. Held in that position.

  Next, as shown in FIG. 3, when the card 10 is inserted into the accommodating portion of the slide member 8, the positioning recess 10 b is engaged with the card 10 by the engagement piece 9. At the same time, the tip end part is brought into contact with and held by the card contact part 8a. At this time, the external contact portion (not shown) of the card 10 is separated from the contact portion 2 c of the contact piece 2 b of the connector terminal 2.

  Next, as shown in FIG. 5, when the card 10 is pressed in the card insertion direction, the slide member 8 can move in the card insertion direction as the card 10 is inserted, and the biasing member 3 is attached. The slide member 8 moves in the card insertion direction against the force, and one end of the lock member 7 traces the heart-shaped cam groove 8c and is locked at the lock position. At this time, the external contact portion of the card 10 comes into contact with the contact portion 2c of the contact piece 2b of the connector terminal 2, and the card 10 is held at the card insertion position.

  When the card 10 is ejected from this state, if the card 10 is further pressed in the card insertion direction from the state of FIG. 5, one end of the lock member 7 traces the heart-shaped cam groove 8c again. As the slide member 8 is urged in the card ejection direction by the urging force of the urging member 3, the card 10 is pushed back in the card ejection direction. 3 is discharged to the card discharge position shown in FIG. 3, and the contact between the external contact portion of the card 10 and the contact portion 2c of the contact piece 2b of the connector terminal 2 is released.

  At this time, as shown in FIG. 4, the receiving portion 8 d formed at the rear end portion of the slide member 8 comes into contact with the spring portion 5 a of the elastic member 5 held by the holding portion 1 d of the housing 1. It will be. At this time, since the impact at the time of return of the slide member 8 is relieved by the elastic force of the spring portion 5a, the impact transmitted to the card 10 when the card 10 is discharged can be suppressed. Thus, the card 10 can be prevented from popping out.

In the above embodiment, the elastic member 5 is provided in the holding portion 1d formed in the housing 1, but instead, the elastic member 5 is attached to the slide member 8 on the card insertion slot side. You may make it provide integrally in a rear-end part.
Even in this case, the slide member 8 can be elastically contacted with the housing 1 when the card 10 is ejected with a simple configuration in which the slide member 8 is simply provided with the elastic member 5.

  According to the configuration of the present invention described above, between the housing 1 in which the card 10 is inserted and the slide member 8 movable in the card insertion and ejection direction as the card 10 is inserted and ejected. When the slide member 8 is moved to the card discharge position by the biasing member 3, the elastic member 5 having a spring portion 5a that repels the slide member 8 in a direction opposite to the card discharge direction is provided. Therefore, when the slide member 8 is pushed back by the urging force of the urging member 3 when the card 10 is ejected, it returns to the card ejection direction of the slide member 8 by the elastic force of the elastic member 3. Since the momentum can be reduced, the card 10 can be prevented from popping out when the card 10 is ejected.

It is a top view which shows the connector apparatus for cards which is one Example of this invention. It is a perspective view which shows the leaf | plate spring and elastic member of this invention. It is a top view which shows the card connector apparatus of the card | curd discharge position of this invention. It is a partial detail drawing which shows the discharge mechanism part of the connector device for cards of this invention. It is a top view which shows the card connector apparatus of the card insertion position of this invention. It is a partial detail drawing which shows the discharge mechanism part of the connector device for cards of this invention. It is sectional drawing in the 7-7 line | wire of FIG. 3 of this invention. It is a principal part expanded sectional view of FIG. 7 of this invention. It is sectional drawing in the 9-9 line | wire of FIG. 5 of this invention. It is a principal part expanded sectional view of FIG. 9 of this invention. It is a disassembled perspective view which shows the conventional card connector apparatus. It is a top view which shows the conventional card connector apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Housing 1a: Storage part 1b: Card insertion part 1c: Spring accommodating part 1d: Holding part 2: Connector terminal 2a: Connection piece 2b: Contact piece 2c: Contact part 3: Biasing member 4: Leaf spring 4a: Flat plate arm Part 5: Elastic member 5a: Spring part 6: Substrate part 7: Lock member 8: Slide member 8a: Card contact part 8b: Spring locking part 8c: Heart-shaped cam groove 8d: Receiving part 8e: Protruding part 9: Engagement Joint 10: Card 10a: Notch 10b: Recess

Claims (3)

  A housing having a storage portion into which a card is inserted, a connector terminal that is arranged in parallel on one end side of the storage portion and can be in contact with an external contact portion of the card, and insertion of the card along with insertion and ejection of the card And a slide member movable in the discharge direction, a biasing member that biases the slide member in the discharge direction, and a heart type that holds the slide member in a card insertion position against the biasing force of the biasing member A cam groove and a lock member are provided, and formed at a position between a part of the slide member and a part of the housing arranged to face a part of the slide member on the discharge direction side of the slide member. An elastic member is provided in the formed space to repel the slide member in a direction opposite to the discharge direction when the slide member is moved to the card discharge position by the biasing member. De connector unit. 2. The card connector device according to claim 1 , wherein the elastic member is formed of a metal plate spring having a spring property. 3. The card connector device according to claim 2 , wherein the elastic member is formed integrally with a metal leaf spring that urges the lock member toward the heart-shaped cam groove.

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