JP2007027030A - Connector for card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a card having a simple structure, capable of reducing a cost, miniaturizable, and capable of properly detecting a card ejecting operation by securing a sufficiently long delay time, and of surely detecting the presence of the card. <P>SOLUTION: This connector for a card includes: a card ejection operation detection switch for detecting ejection of a card from a housing; and a card detection switch for detecting contact between a terminal member of the card and a connection terminal. The card ejection operation detection switch comprises a first contact member attached to the housing and a common contact member and detects the start of the ejection of the card while the card is moved in the insertion direction by a push operation and reaches an end point from a lock position; and the card detection switch comprises a second contact member attached to the housing and a common contact member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a card connector.

  Conventionally, in electronic devices such as personal computers, mobile phones, PDAs (Personal Digital Assistants), digital cameras, video cameras, music players, game consoles, vehicle navigation devices, SIM (Subscriber Identity Module) cards, MMC (Multi Media). Card connector (R), SD (Secure Digital) (R) card, Mini SD (R) card, Memory Stick (R), SmartMedia (R), etc. ing.

  FIG. 7 shows a conventional card connector.

  In the figure, reference numeral 301 denotes an insulating housing for a card connector, and a front end of a memory card (not shown) is inserted from the top to the bottom in the figure. A plurality of terminals 302 are attached to the insulating housing 301, and the terminals 302 are in contact with contact pads of the memory card. Reference numeral 303 denotes a cam slider in the card ejection mechanism, and the protrusion engages with a part of the memory card and slides along the slide wall 304 formed on the side surface of the insulating housing 301. The cam slider 303 is urged upward by a coil spring 305 in the drawing.

  Further, a detection switch for detecting the presence or absence of the memory card is disposed on the inner wall (the lower side in the figure) of the insulating housing 301. The detection switch has a movable contact member 306 having elasticity and a fixed contact member 307 fixed. As shown in the figure, in the state where no memory card is inserted in the insulating housing 301, the movable contact member is provided. 306 and the fixed contact member 307 are in contact with each other and are ON. When the memory card is inserted into the insulative housing 301, the movable contact member 306 is displaced by being pushed by the tip of the memory card and is not in contact with the fixed contact member 307, and the detection switch is turned off. . Thereby, it is detected that the memory card is inserted.

Incidentally, there has been proposed a delay switch for detecting an operation of pulling out a memory card loaded in an electronic device at an early stage (see, for example, Patent Document 1). For example, if the memory card is pulled out while the computing means of the electronic device is accessing the memory card, the data bus connecting the computing means and the memory card is disconnected during data transfer. As a result, the data may be destroyed or the arithmetic means may not return with the operation stopped. The delay switch detects the operation of pulling out the memory card at an early stage, thereby connecting the computing means and the memory card until the contact between the terminal of the card connector and the contact pad of the memory card is cut off. This switch earns time for safely disconnecting the data bus.
JP 2003-203209 A

  However, the conventional card connector cannot employ a delay switch as described in Patent Document 1. The delay switch described in Patent Document 1 assumes an electronic device using an IC card such as a credit card, and requires a discharge lever operated by a user's hand. . For this reason, a so-called push-in push-out type or push / push-type card connector for using a relatively small memory card as shown in FIG. Such a delay switch cannot be employed.

  However, in the card connector as shown in FIG. 7, it is conceivable to use a detection switch for detecting the presence or absence of a memory card as a delay switch for detecting an operation of pulling out the memory card. However, when the memory card is ejected, a delay time from when the movable contact member 306 and the fixed contact member 307 come into contact with each other until contact between the terminal 302 and the contact pad of the memory card is cut off, that is, It is difficult to take a sufficiently long delay time.

  The present invention solves the problems of the conventional card connector and includes a card ejection operation detection switch that includes a reciprocating stroke in a push operation when ejecting a card in a delay time, and the card is loaded. By having a card detection switch for detecting this, the structure is simple, the cost can be reduced, the size can be reduced, and a sufficiently long delay time can be secured to eject the card. An object of the present invention is to provide a card connector that can detect properly and can reliably detect the presence of a card.

  Therefore, in the card connector according to the present invention, the housing including the card having the terminal member, the connection terminal attached to the housing and contacting the terminal member of the card, and the card being discharged from the housing. A card ejection operation detection switch for detecting the card, a card detection switch for detecting that the terminal member of the card is in contact with the connection terminal, and a biasing member for biasing the card in a direction opposite to the insertion direction. The card is held in the locked position, and when the card moves in the insertion direction by the push operation of pushing the card in the insertion direction and reaches the terminal point, the card is terminated by the biasing force of the biasing member. A card connector having a card guide mechanism for discharging from a point in a direction opposite to the insertion direction, the card connector, The card discharge operation detection switch includes a first contact member and a common contact member attached to the housing, and the card moves in the insertion direction by the push operation until the card reaches the terminal point from the lock position. Further, it is detected that the ejection of the card is started, and the card detection switch includes a second contact member and a common contact member attached to the housing.

  In the card connector according to another aspect of the invention, the first contact member and the second contact member are formed of a plate material made of a conductive material having a spring property, and are displaced when the card contacts.

  In still another card connector of the present invention, the first contact member is attached to the back wall portion of the housing, and is displaced when the front surface in the card insertion direction comes into contact.

  In still another card connector of the present invention, the second contact member is attached to a side portion of the housing, and is displaced when the lower surface of the card abuts.

  In still another card connector according to the present invention, the card ejection operation detection switch further detects that the ejection of the card is started by contacting the first contact member with a common contact member, The card detection switch detects that the terminal member of the card and the connection terminal are in contact with each other when the second contact member comes into contact with the common contact member.

  According to the present invention, a card connector has a card ejection operation detection switch that includes a reciprocating stroke in a push operation when ejecting a card in a delay time, and a card for detecting that a card is loaded. It also has a detection switch. Therefore, the structure is simple, the cost can be reduced, the size can be reduced, a sufficiently long delay time can be secured, the operation of ejecting the card can be detected properly, and the presence of the card can be detected. It can be detected reliably.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a plan view showing a state in which the shell of the card connector according to the first embodiment of the present invention is removed, and FIG. 2 is a perspective view showing the card connector according to the first embodiment of the present invention. 3 is a perspective view showing a switch of the card connector according to the first embodiment of the present invention. FIG.

  In the figure, reference numeral 10 denotes a card connector in the present embodiment, which is attached to an electronic device (not shown). A card 31 described later is inserted into the card connector 10, and the card 31 is attached to the electronic device via the card connector 10. The electronic device is, for example, a personal computer, a mobile phone, a PDA, a digital camera, a video camera, a music player, a game machine, a vehicle navigation device, or the like, but may be any type of device.

  The card 31 is, for example, a SIM card, an MMC (R), an SD (R) card, a mini SD (R) card, a memory stick (R), a smart media (R), or a T-Flash (Trans-Flash) memory. An IC card such as a card or a micro SD (R) card, which may be any type of card, but in the present embodiment, it will be described as a mini SD (R) card. Further, in the present embodiment, the expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part of the card connector 10 are absolute. This is appropriate when the card connector 10 or its parts are in the posture shown in the figure, but when the card connector 10 or its parts change, the posture changes. It should be interpreted accordingly.

  Here, as shown in FIG. 2, the card connector 10 includes a housing 11 for housing a card 31 integrally formed of an insulating material such as a synthetic resin, and a plate material made of a conductive material such as metal. And a shell 12 attached to the upper side of the housing 11 by molding such as punching and bending. The card connector 10 has a roughly flat rectangular parallelepiped shape, is attached to the electronic device, and a card 31 is inserted from the front (upper left in FIG. 2).

  FIG. 1 is a view showing the card connector 10 with the shell 12 removed for explanation. As shown in FIG. 1, the housing 11 includes a bottom wall portion 11 a having a shape in which a front edge side (upper left side in FIG. 1) that is the front side in the insertion direction of the card 31 is cut into a substantially U shape, and The bottom wall portion 11a includes a back wall portion 11b that extends along the edge on the back side and is erected from the bottom wall portion 11a. Here, a plurality of terminal loading grooves 11e formed so as to extend in the front-rear direction are formed on the upper surface of the bottom wall portion 11a, and the terminals 13 as connection terminals are inserted and attached to the terminal loading grooves 11e. ing. The terminal 13 is attached to a portion of the terminal loading groove 11e near the front edge of the bottom wall portion 11a in the terminal loading groove 11e, and its tip portion extends obliquely upward toward the back wall portion 11b. And it protrudes upwards from the upper surface of the bottom wall part 11a. The distal end portion of the terminal 13 functions as a contact portion, and is in contact with and electrically connected to a contact pad as a terminal member disposed on the lower surface of the card 31. Also, a solder tail portion 13a extending from the base portion of the terminal 13 projects forward from the front edge of the bottom wall portion 11a, and is formed on a signal line or contact pad formed on a wiring board or the like in the electronic device. And electrically connected to a terminal or the like, that is, a counterpart terminal member by soldering or the like.

  The housing 11 includes a first side wall part 11c as an L-shaped side wall part extending in the front-rear direction along one side edge of the bottom wall part 11a, and the other side edge of the bottom wall part 11a. A second side wall part 11d as a side wall part extending in the front-rear direction is provided. A slide member 14 in a card guide mechanism for guiding a card 31 inserted into the card connector 10 is attached to the second side wall portion 11d so as to be slidable in the front-rear direction. The slide member 14 includes a first engagement portion 14a and a second engagement portion 14b formed so as to protrude from the inner side surface. The first engagement portion 14 a and the second engagement portion 14 b engage with the engagement portion formed on the side surface of the card 31.

  Here, the card connector 10 requires an operation of pushing the card 31 both when the card 31 is inserted into the card connector 10 and when the card 31 is taken out from the card connector 10. The so-called push-in push-out type or push / push type is commonly called. A cam device 17 in a card guide mechanism for performing a push / push operation is attached to the second side wall portion 11d. In the present embodiment, the cam device 17 is formed integrally with the slide member 14. The cam device 17 includes, for example, a cam groove and cooperates with the cam pin 18 engaged with the cam groove so that the slide member 14 moving with the card 31 performs a push / push operation. It has become.

  A mechanism for performing the push / push operation such as the cam device 17 is well known in the art and will not be described.

  Further, a biasing member 15 for biasing the slide member 14 in a direction opposite to the insertion direction of the card 31, that is, forward is attached to the second side wall portion 11d. The urging member 15 is formed of a coil spring, and both ends thereof are in contact with the locking portion 11f of the back wall portion 11b and the locking portion 14c of the slide member 14. The card guide mechanism includes the urging member 15, and the urging force of the urging member 15 when the card 31 moves in the insertion direction and reaches the terminal point by a push operation of pushing the card 31 in the insertion direction. Thus, the card 31 is moved from the end point in the direction opposite to the insertion direction and discharged. Note that the card guide mechanism may be disposed not on the second side wall portion 11d but on the first side wall portion 11c.

  Further, a first contact member 21 that forms a delay switch as a card discharge operation detection switch for detecting the discharge of the card 31 from the housing 11 at the back of the housing 11, specifically, the back wall 11b, and A common contact member 22 is attached. The delay switch is activated when the card 31 moves, and the first contact member 21 and the common contact member 22 are brought into and out of contact with each other, so that the delay switch is turned on and turned off. Become. Here, the delay switch is a switch that detects a push operation for causing the card guide mechanism to perform an operation of pushing and ejecting the card 31 inserted into the card connector 10.

  In the push operation, the slide member 14 of the card guiding mechanism is moved with the card 31 by receiving a force applied to the card 31 by a user's finger or the like, and the card 31 is locked in the card connector 10. Is moved toward the back wall portion 11b from the lock position held at, and reaches the terminal point, which is the most advanced position, and becomes a full stroke state. Subsequently, when the force applied to the card 31 by the user is released, the slide member 14 and the card 31 are moved in a direction away from the back wall portion 11b due to the repulsive force of the biasing member 15, Return to the locked position. That is, the stroke from the lock position to the end point is reciprocated. Then, the slide member 14 and the card 31 pass through the lock position and further move in the direction opposite to the insertion direction of the card 31.

  In this case, the delay switch changes from the non-conducting state to the conducting state in the middle of the forward stroke in which the slide member 14 and the card 31 move from the lock position to the terminal point, and thus the push operation is started. Is detected. On the other hand, the contact pad of the card 31 is not actually in contact with the tip of the terminal 13 after the slide member 14 reaches the lock position in the return stroke from the end point. That is, in the forward stroke, the time until the slide member 14 and the card 31 reach the termination point from the point where the delay switch changes to the conductive state, and in the return stroke, the slide member 14 and the card 31 are locked from the termination point. The delay time can be included in the delay time. Thereby, the delay time, that is, the delay time can be made sufficiently long. The delay time refers to the time from when the delay switch detects that the push operation has started until the contact pad of the card 31 is not in contact with the tip of the terminal 13.

  As shown in FIG. 3, the first contact member 21 includes a root portion 21a attached to the back wall portion 11b, and a lateral portion (upper right in FIG. 3) extending from the root portion 21a. It has a main body portion 21c having a shape like a long and thin plate-shaped cantilever. The first contact member 21 is a member formed by punching or bending a plate made of a conductive material having a spring property such as metal, and the base portion 21a is a main body portion. It is bent so as to form a predetermined angle with respect to 21c. In the present embodiment, the angle between the root portion 21a and the main body portion 21c is an acute angle, and the first contact member 21 has a generally V-shaped shape. The base portion 21a of the first contact member 21 is substantially parallel to the side surface of the back wall portion 11b, and the main body portion 21c has a side surface of the back wall portion 11b in a state where the card 31 is not inserted into the card connector 10. The card 31 is disposed so as to protrude toward the near side in the insertion direction of the card 31.

  Further, the root portion 21a includes a solder tail portion 21b at the lower end thereof. The solder tail portion 21b is soldered and electrically connected to a signal line, a contact pad, a terminal or the like formed on a wiring board or the like in the electronic device, that is, a counterpart terminal member. On the other hand, the first contact portion 21d is connected to the tip of the main body portion 21c. The first contact portion 21d is bent so as to be substantially perpendicular to the main body portion 21c, and protrudes forward from the lower end edge of the front end of the main body portion 21c. The lower surface of the portion that bulges downward from the first contact portion 21 d functions as a contact surface that contacts the common contact member 22. The first contact portion 21d is positioned below the upper surface of the bottom wall portion 11a and does not contact the lower surface of the card 31.

  The common contact member 22 includes a root portion 22a attached to the back wall portion 11b and a main body portion 22c bent so as to be substantially perpendicular to the root portion 22a. The common contact member 22 is a member formed by punching or bending a plate made of a conductive material having a spring property such as metal. The main body portion 22c is substantially parallel to the top surface of the bottom wall portion 11a, is accommodated in a recess formed in the bottom wall portion 11a, is positioned below the top surface of the bottom wall portion 11a, and is the bottom surface of the card 31. It is supposed not to touch. Further, the main body portion 22c includes a first branch portion 22d and a second branch portion 22f that are shaped like an elongated plate-like cantilever extending in the horizontal direction (upper right in FIG. 3). The first branch portion 22d is located in front of the second branch portion 22f, but is shorter than the second branch portion 22f.

  Further, the root portion 22a includes a solder tail portion 22b at the lower end thereof. The solder tail portion 22b is soldered and electrically connected to a signal line, a contact pad, a terminal or the like formed on a wiring board or the like in the electronic device, that is, a counterpart terminal member. Further, since the first branch portion 22d and the second branch portion 22f are located below the upper surface of the bottom wall portion 11a, they are located below the main body portion 21c of the first contact member 21.

  And the common contact 1st contact part 22e is connected to the front-end | tip of the 1st branch part 22d. The common contact first contact portion 22e protrudes forward from the tip of the first branch portion 22d, and its upper surface bulges downward from the first contact portion 21d of the first contact member 21. It functions as an abutting surface that abuts on the lower surface of the portion to be engaged.

  On the other hand, a common contact second contact portion 22g is connected to the tip of the second branch portion 22f. The common contact second contact portion 22g protrudes forward from the tip of the second branch portion 22f, and the upper surface functions as a contact surface that contacts the second contact member 23.

  Here, the common contact member 22 detects that the contact pad as the terminal member of the card 31 and the terminal 13 as the connection terminal are in contact with the second contact member 23, and the card 31 is used for the card. A card detection switch for detecting that the connector 10 is loaded is formed. The card detection switch is activated when the card 31 is moved, and the second contact member 23 and the common contact member 22 are brought into contact with and separated from each other, thereby conducting, that is, ON and non-conducting, that is, an OFF state. It becomes. In the present embodiment, the card detection switch is OFF when the card 31 is not inserted into the card connector 10 and is initially OFF when the card 31 is loaded into the card connector 10. It will be described as being of the type.

  The second contact member 23 includes a back root portion 23a attached to the back wall portion 11b and a side root portion 23b attached to the first side wall portion 11c, and the back wall portion 11b and the side root portion 23b. Has a substantially L-shaped main body portion 23c extending along the line. Moreover, it has the arm part 23d which is the shape like the elongate plate-shaped cantilever extended toward back (right lower side in FIG. 3) from the side root part 23b of this main-body part 23c. The second contact member 23 is a member formed by punching or bending a plate made of a conductive material having a spring property such as metal. The arm portion 23d is bent so as to be substantially perpendicular to the main body portion 23c, and is substantially parallel to the bottom wall portion 11a.

  Further, the rear root portion 23a includes a solder tail portion 23g at the lower end thereof. The solder tail portion 23g is soldered and electrically connected to a signal line, a contact pad, a terminal or the like formed on a wiring board or the like in the electronic device, that is, a counterpart terminal member. The arm portion 23d is positioned below the upper surface of the bottom wall portion 11a.

  And the 2nd contact part 23f is connected to the front-end | tip of the arm part 23d via the upward protrusion part 23e. The upper projecting portion 23e and the second contact portion 23f are portions formed by bending the tip of the arm portion 23d, and have a crank shape or an S-shape when the arm portion 23d is viewed from the side. It is formed by bending. And the upper surface of the upper protrusion part 23e is located above the upper surface of the bottom wall part 11a, and contact | abuts the lower surface of the card | curd 31 loaded. The second contact portion 23 f bulges downward, and the lower surface functions as a contact surface that contacts the upper surface of the common contact second contact portion 22 g of the common contact member 22.

  Next, the operation of the card connector 10 having the above configuration will be described.

  FIG. 4 is a perspective view showing a state in which the card is inserted and locked in the card connector according to the first embodiment of the present invention, and FIG. 5 is a diagram of ejecting the card to the card connector according to the first embodiment of the present invention. It is a perspective view which shows the state used as the full stroke by operation | movement.

  First, the operation of inserting the card 31 into the card connector 10 and mounting the card 31 on the electronic device to which the card connector 10 is attached will be described. 4 and 5 show a state in which the shell 12 is removed for explanation, as in FIG. Further, only the outer shape of the card 31 is drawn with dotted lines in order to show the movement of the first contact member 21, the common contact member 22, and the second contact member 23.

  In this case, the user inserts the card 31 from the front of the card connector 10 with fingers or the like. In an initial state of insertion, a contact pad (not shown) disposed on the lower surface of the card 31 does not reach the position of the terminal 13. Further, the engaging portion formed on one side of the card 31 is not engaged with the first engaging portion 14a and the second engaging portion 14b of the slide member 14 of the card guiding mechanism. Further, the first contact member 21 and the common contact member 22 are not in contact with each other, and the delay switch is in an OFF state. Further, the second contact member 23 and the common contact member 22 are not in contact with each other, and the card detection switch is in an OFF state.

  Subsequently, when the user pushes the card 31 and pushes it further, the engaging portion of the card 31 engages with the first engaging portion 14a and the second engaging portion 14b of the slide member 14, and the card 31 Together with the slide member 14, it moves toward the back wall portion 11 b. At this time, since the slide member 14 compresses the urging member 15 formed of a coil spring, the slide member 14 and the card 31 receive the repulsive force of the urging member 15, and the repulsive force is exerted by the user's fingers and the like. Therefore, it moves against the repulsive force.

  And the slide member 14 and the card | curd 31 reach | attain the terminal point which is the most advanced position, and will be in a full stroke state. In the middle of the process until the card 31 reaches the end point, the lower surface abuts on the upper protrusion 23e of the second contact member 23, and the tip of the arm 23d is displaced downward. As a result, the second contact portion 23 f of the second contact member 23 contacts the common contact second contact portion 22 g of the common contact member 22. Further, the front surface in the insertion direction of the card 31 abuts on the main body 21c of the first contact member 21, and the main body 21c is displaced in the direction of the back wall 11b. Then, as the card 31 moves toward the back wall portion 11b, the main body portion 21c is largely displaced, and the first contact portion 21d of the first contact member 21 is the common contact first contact portion 22e of the common contact member 22. Abut. Finally, when the full stroke state is reached, the main body portion 21 c of the first contact member 21 is pressed against the side surface of the back wall portion 11 b by the card 31.

  Subsequently, when the user stops pushing the card 31 and releases the pushing force against the card 31, the sliding member 14 and the card 31 move in a direction to be detached from the back wall portion 11b by the repulsive force of the biasing member 15. Be made. Then, as shown in FIG. 4, the slide member 14 and the card 31 stop at a lock position where the card 31 is held in a locked state in the card connector 10. This is because the movement of the slide member 14 is restricted by the cam device 17 and stopped at the lock position.

  And the card | curd 31 will be in the state which can transmit / receive data between the calculating means etc. of the electronic device to which the connector 10 for cards was attached by being hold | maintained in a locked position. When the card 31 is held in the locked position, a contact pad (not shown) on the lower surface of the card 31 is in contact with the distal end portion of the terminal 13 and is conductive. In the second contact member 23, the upper protrusion 23e is in contact with the lower surface of the card 31 and the tip of the arm 23d is displaced downward, so the second contact 23f is common to the common contact member 22. The contact is in contact with the second contact portion 22g. Therefore, the card detection switch is in an ON state. Since the first contact portion 21d of the first contact member 21 is not in contact with the common contact first contact portion 22e of the common contact member 22, the delay switch is in an OFF state.

  Next, an operation for ejecting the card 31 from the card connector 10 will be described.

  In this case, when the user pushes and pushes the card 31 with fingers or the like, the slide member 14 and the card 31 are moved from the lock position toward the back wall portion 11b. Then, the front surface in the insertion direction of the card 31 comes into contact with the main body portion 21c of the first contact member 21, displaces the main body portion 21c in the direction of the back wall portion 11b, and the first contact portion 21d is moved to the common contact member 22. It is made to contact | abut to the common contact 1st contact part 22e. Accordingly, the delay switch detects that the push operation for discharging the card 31 is started from the non-conductive state to the conductive state, that is, from OFF to ON. During this time, since the second contact member 23 and the common contact member 22 are kept in contact with each other, the card detection switch is kept in the ON state.

  Subsequently, when the user pushes the card 31 and further pushes in, the slide member 14 and the card 31 reach the terminal point that is the most advanced position and enter a full stroke state, as shown in FIG. . During this time, since the first contact member 21 and the common contact member 22 are kept in contact with each other, the delay switch is kept in the ON state. In addition, since the second contact member 23 and the common contact member 22 are kept in contact with each other, the card detection switch is also kept on.

  Subsequently, when the user stops pushing the card 31 and releases the pushing force against the card 31, the sliding member 14 and the card 31 move in a direction to be detached from the back wall portion 11b by the repulsive force of the biasing member 15. To return to the locked position. In this case, since the movement of the slide member 14 is not restricted by the cam device 17 and cannot be stopped at the locked position, the slide member 14 and the card 31 pass through the locked position and are in a direction opposite to the insertion direction of the card 31. Go further. Then, the engagement between the engagement portion of the card 31 and the first engagement portion 14a and the second engagement portion 14b of the slide member 14 is released, and the slide member 14 and the card 31 return to the initial insertion state. In the middle of returning from the terminal point to the lock position, the main body portion 21c of the first contact member 21 is restored to its original posture by its own spring property, so that the first contact member 21 and the common contact member 22 are restored. Are not in contact with each other. Therefore, the delay switch changes from ON to OFF. Further, the arm portion 23d of the second contact member 23 is also restored to its original posture by its own springiness, so that the second contact member 23 and the common contact member 22 are not in contact with each other. For this reason, the card detection switch also changes from ON to OFF.

  As described above, when the card 31 is ejected from the card connector 10 and taken out, the delay switch changes from OFF to ON during the forward stroke in which the slide member 14 and the card 31 move from the lock position to the terminal point. The push operation is detected. The contact pad of the card 31 is actually not in contact with the terminal 13 after the slide member 14 reaches the lock position in the return stroke from the terminal point. Therefore, in the forward stroke, the slide member 14 and the card 31 reach the terminal point from the point where the delay switch changes to the conductive state, and in the return stroke, the slide member 14 and the card 31 lock from the terminal point to the locked position. The delay time can be included in the delay time. As a result, the delay time from when the delay switch detects that the push operation is started to when the contact pad of the card 31 is actually not in contact with the terminal 13 can be made sufficiently long.

  In order to lengthen the delay time, it is desirable to bring the point where the delay switch changes to ON as close as possible to the lock position. For example, when the distance that the slide member 14 and the card 31 move from the lock position to the end point, that is, the stroke length from the lock position to the end point is 0.8 [mm], the point where the delay switch changes to ON. Is preferably about 0.2 mm from the lock position.

  As described above, in the present embodiment, the card connector 10 includes the delay switch that includes the reciprocating stroke in the push operation when the card 31 is ejected in the delay time, and detects that the card 31 is loaded. It also has a card detection switch. The delay switch includes a first contact member 21 that is displaced by the movement of the card 31, and the first contact member 21 contacts the common contact member 22 during a reciprocating stroke in a push operation when the card 31 is ejected. It comes to be turned on. Therefore, since the reciprocating stroke in the push operation when the card 31 is ejected is included in the delay time, a sufficiently long delay time can be ensured. Therefore, when the card 31 is ejected from the card connector 10, the electronic device to which the card connector 10 is attached safely shuts off the circuit that connects the computing means and the card 31 during the delay time. Can do.

  In addition, the delay switch includes the first contact member 21 and the common contact member 22 formed by processing a plate material having a spring property such as metal, so that the structure is simple, the cost can be reduced, and the size can be reduced. it can. Further, the card connector 10 having the delay switch can also be simplified in structure and reduced in cost, and can be reduced in size.

  Further, since the forward stroke in the push operation when the card 31 is ejected is due to the user pushing the card 31 against the repulsive force of the biasing member 15 with a finger or the like, the moving speed of the card 31 is Becomes lower. Therefore, the delay time including the forward stroke can be made sufficiently long.

  Further, the card detection switch has a second contact member 23 that is displaced by the movement of the card 31, and when the card 31 is loaded, the second contact member 23 comes into contact with the common contact member 22 and is turned on. It has become. Therefore, it is possible to reliably detect that the contact pad of the card 31 is in contact with the terminal 13, and the electronic device to which the card connector 10 is attached connects the computing means and the card 31 during the delay time. A circuit to be connected can be safely turned on.

  Furthermore, since the card detection switch is composed of the second contact member 23 and the common contact member 22 obtained by processing a plate material having a spring property such as metal, the structure can be simplified, the cost can be reduced, and the size can be reduced. Can do. Furthermore, the card connector 10 having the card detection switch can also be simplified in structure and reduced in cost, and can be reduced in size.

  In this case, the lower surface of the card 31 comes into contact with the upper surface of the upper protruding portion 23e of the second contact member 23, so that the arm portion 23d is displaced downward, and the second contact portion 23f becomes the common contact number of the common contact member 22. 2 abuts against the abutment portion 22g. That is, the dimension in the thickness direction of the card 31 is replaced with the displacement amount of the second contact member 23 so that the contact between the second contact member 23 and the common contact member 22 is brought into contact. Therefore, since the dimension in the width direction of the card 31 is not used, the influence of the play in the width direction existing between the card 31 and the card connector 10, the influence of the card 31 being inclined, the width direction of the card 31 The displacement amount of the second contact member 23 is stabilized, and the contact pressure and the wiping amount of the contact are stabilized. Thereby, the electrical contact in the contact of a switch can be ensured and reliability can be improved. Although it may be affected by variations in the thickness of the card 31, the second contact member 23 has a small size variation because the thickness is smaller than the width. The effect on the amount of displacement is extremely small.

  Furthermore, since the delay switch and the card detection switch use the common contact member 22 in common, the number of parts including the delay switch and the card detection switch can be reduced. Therefore, the structure of the delay switch and the card detection switch can be simplified, the cost can be reduced, and the size can be reduced.

  In the present embodiment, the main body portion 22c of the common contact member 22 includes the first branch portion 22d and the second branch portion 22f, and the common contact first contact portion 22e at the tip of the first branch portion 22d is the first branch portion 22d. The case where the first contact member 21 abuts and the common contact second contact portion 22g at the tip of the second branch portion 22f abuts the second contact member 23 has been described. However, the first branch portion 22d and the second branch portion are described. 22f can also be integrated. In this case, the common contact first contact portion 22e and the common contact second contact portion 22g are also integrated into a single contact portion so as to contact the first contact member 21 and the second contact member 23.

  Next, a second embodiment of the present invention will be described. In addition, about what has the same structure as 1st Embodiment, the description is abbreviate | omitted by providing the same code | symbol. The description of the same operation and the same effect as those of the first embodiment is also omitted.

  FIG. 6 is a perspective view showing a state in which the shell of the card connector in the second embodiment of the present invention is removed.

  In the figure, 41 is a first contact member in the present embodiment, and 42 is a common contact member in the present embodiment. The first contact member 41 and the common contact member 42 are attached to the back wall portion 11b and form a delay switch as a card ejection operation detection switch. The first contact member 41 is like a root portion 41a attached to the back wall portion 11b, and an elongated plate-like cantilever extending from the root portion 41a laterally (lower left in the figure). It has a main body portion 41c having a simple shape. The first contact member 41 is a member formed by punching or bending a plate made of a conductive material having a spring property such as metal, and the base portion 41a is a main body portion. It is bent so as to form a predetermined angle with respect to 41c. In the present embodiment, the angle between the root portion 41a and the main body portion 41c is an acute angle, and the first contact member 41 has a generally V-shaped shape. The base portion 41a of the first contact member 41 is substantially parallel to the side surface of the back wall portion 11b, and the main body portion 41c has a side surface of the back wall portion 11b in a state where the card 31 is not inserted into the card connector 10. The card 31 is disposed so as to protrude toward the near side in the insertion direction of the card 31.

  Further, the root portion 41a includes a solder tail portion 41b at the lower end thereof. The solder tail 41b is soldered and electrically connected to a signal line, contact pad, terminal, etc. formed on a wiring board or the like in the electronic device, that is, a counterpart terminal member. On the other hand, the first contact portion 41d is connected to the tip of the main body portion 41c. The first contact portion 41d is bent so as to be substantially perpendicular to the main body portion 41c, and protrudes forward from the lower end edge of the front end of the main body portion 41c. The lower surface of the portion that bulges downward from the first contact portion 41 d functions as a contact surface that contacts the common contact member 42. The first abutting portion 41d is positioned below the upper surface of the bottom wall portion 11a and does not contact the lower surface of the card 31.

  The common contact member 42 has a root portion 42a attached to the back wall portion 11b, and a main body portion 42c bent so as to be substantially perpendicular to the root portion 42a. The common contact member 42 is a member formed by punching or bending a plate made of a conductive material having a spring property such as metal. The main body portion 42c is substantially parallel to the upper surface of the bottom wall portion 11a, is accommodated in a recess formed in the bottom wall portion 11a, is positioned below the upper surface of the bottom wall portion 11a, and is the lower surface of the card 31. It is supposed not to touch.

  And the main-body part 42c is provided with the elongate plate-like shape extended toward the left-right direction, and the common contact 1st contact part 42d and the common contact 2nd contact part 42e are connected to both ends. The common contact first contact portion 42 d protrudes forward from the left end of the main body portion 42 c, and the upper surface functions as a contact surface that contacts the first contact member 41. The common contact second contact portion 42e protrudes forward from the right end of the main body portion 42c, and the upper surface functions as a contact surface that contacts the second contact member 23.

  Further, the root portion 42a includes a solder tail portion 42b at the lower end thereof. The solder tail portion 42b is soldered and electrically connected to a signal line, a contact pad, a terminal or the like formed on a wiring board or the like in the electronic device, that is, a counterpart terminal member. The main body portion 42c is positioned below the upper surface of the bottom wall portion 11a, and thus is positioned below the main body portion 41c of the first contact member 41.

  The configuration of other points is the same as that of the first embodiment, and a description thereof will be omitted. The operation is also the same as that in the first embodiment, and a description thereof will be omitted.

  Thus, in the present embodiment, the main body portion 42c of the common contact member 42 has an elongated plate-like shape extending in the left-right direction, and the common contact first contact portion 42d and the common contact portion 42 are provided at both ends. A contact second contact portion 42e is connected. Therefore, the configuration of the common contact member 42 that is commonly used by the delay switch and the card detection switch can be simplified, the cost can be reduced, and the size can be reduced. Also, the contact of the delay switch and the contact of the card detection switch are arranged separately on the left and right, and the configuration of the card connector 10 can be simplified.

  The effects of other points are the same as those in the first embodiment, and a description thereof will be omitted.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

It is a top view which shows the state which removed the shell of the connector for cards in the 1st Embodiment of this invention. It is a perspective view which shows the connector for cards in the 1st Embodiment of this invention. It is a perspective view which shows the switch of the connector for cards in the 1st Embodiment of this invention. It is a perspective view which shows the state which inserted and locked the card | curd in the card | curd connector in the 1st Embodiment of this invention. It is a perspective view which shows the state used as the full stroke by the operation | movement which discharges | emits a card | curd to the card | curd connector in the 1st Embodiment of this invention. It is a perspective view which shows the state which removed the shell of the connector for cards in the 2nd Embodiment of this invention. It is a figure which shows the conventional card connector.

Explanation of symbols

10 Card connector 11 Housing 11a Bottom wall portion 11b Back wall portion 11c First side wall portion 11d Second side wall portion 11e Terminal loading groove 11f, 14c Locking portion 12 Shell 13, 302 Terminals 13a, 21b, 22b, 23g, 41b, 42b Solder tail portion 14 Slide member 14a First engagement portion 14b Second engagement portion 15 Energizing member 17 Cam device 18 Cam pins 21, 41 First contact members 21a, 22a, 41a, 42a Root portions 21c, 22c, 23c, 41c, 42c Main body portions 21d, 41d First contact portions 22, 42 Common contact member 22d First branch portions 22e, 42d Common contact first contact portions 22f Second branch portions 22g, 42e Common contact second contact portions 23 Second contact member 23a Back root 23b Side root 23d Arm 23e Upper protrusion 23f Second abutment 31 Card 301 Insulating housing 303 Cam slider 304 Slide wall 305 Coil spring 306 Movable contact member 307 Fixed contact member

Claims (5)

(A) a housing (11) for housing a card (31) having a terminal member;
(B) a connection terminal (13) attached to the housing (11) and contacting a terminal member of the card (31);
(C) a card ejection operation detection switch for detecting that the card (31) is ejected from the housing (11);
(D) a card detection switch for detecting that the terminal member of the card (31) and the connection terminal (13) are in contact;
(E) An urging member (15) for urging the card (31) in a direction opposite to the insertion direction is provided, the card (31) is held in a locked position, and the card (31) is inserted in the insertion direction. When the card (31) moves in the insertion direction by the push-in operation to reach the terminal point, the card (31) is moved from the terminal point in the direction opposite to the insertion direction by the biasing force of the biasing member (15). A card connector (10) having a card guide mechanism for moving and discharging;
(F) The card discharge operation detection switch includes a first contact member (21, 41) and a common contact member (22, 42) attached to the housing (11), and the card (31) is formed by the push operation. Detects that the card (31) has started to be ejected during the period from the lock position to the terminal point after moving in the insertion direction,
(G) The card connector (10), wherein the card detection switch includes a second contact member (23) and a common contact member (22, 42) attached to the housing (11). The said 1st contact member (21, 41) and the 2nd contact member (23) are shape | molded from the board | plate material which consists of an electroconductive material with spring property, and they are displaced when the said card | curd (31) contact | abuts. A card connector (10) according to claim 1. The said 1st contact member (21, 41) is attached to the back wall part (11b) of the said housing (11), and is displaced when the front surface of the insertion direction of the said card | curd (31) contact | abuts. Card connector (10). The card connector (10) according to claim 2, wherein the second contact member (23) is attached to a side portion of the housing (11), and is displaced when the lower surface of the card (31) contacts. The card ejection operation detection switch detects that the ejection of the card (31) is started when the first contact member (21, 41) contacts the common contact member (22, 42), and the card The detection switch detects that the terminal member of the card (31) and the connection terminal (13) are in contact with each other when the second contact member (23) contacts the common contact member (22, 42). The card connector (10) according to any one of claims 1 to 4.

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