JP4858705B2 - Card connector - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing a jump (rapid ejection) when a card is ejected from a connector in a push-push type card connector.

  A first conventional card connector will be described with reference to FIGS.

  FIG. 9 is a top view of the card connector 21 (hereinafter sometimes referred to as “connector 21”), and FIG. 10 is a top view of the connector 21 from which the shell 29 has been removed. The state in the middle of being inserted in 21 is shown.

  The insulator 22 of the connector 21 holds a number of signal terminals 23, a slider 26 that ejects the card 31, a compression coil spring 27 that biases the slider 26, and a hook pin 28 that locks the slider 26. .

  A pair of card pressing pieces 29 a are provided on both sides of the shell 29 disposed on the top surface of the connector 21. Each card holding piece 29 a is installed on the side of the connector 21 close to the card insertion slot 30.

  In the first conventional connector, in order to prevent the card 31 from popping out when it is ejected from the connector 21, a pair of card pressing pieces 29a abut against the upper surface of the card 31 and generate frictional resistance like a brake. This prevents the card 31 from popping out. Therefore, the upper surface of the card 31 and each card pressing piece 29a are in contact with each other when the card is inserted and when the card is ejected, and thus are easily worn.

  When the number of insertion / ejection times of the card 31 is increased, the force with which each card pressing piece 29a comes into contact with the upper surface of the card 31 is reduced due to the wear, so that the card 31 jumps out of the connector 21. Furthermore, since the force with which each card holding piece 29a contacts the upper surface of the card 31 is constant throughout, the contact force of each card holding piece 29a prevents the card 31 from sliding unnecessarily even when the card 31 is inserted deep into the connector 21. Is strongly set, the expansion force of the compression coil spring 27 is weakened in a state where the compression coil spring 27 is expanded to some extent, so that the card 31 is not discharged halfway. On the contrary, if the contact force of each card holding piece 29a is set to be weak, the speed at which the card 31 is ejected cannot be reduced, so that the card 31 jumps out of the connector 21.

  As another means for preventing the card 31 from jumping out from the connector 21, there is a method of applying viscous grease to the slider 26. However, since the viscous grease is altered or flows due to reflow heat of soldering, it is difficult to maintain the function of preventing the card 21 from popping out for a long period of time. Furthermore, since the viscous grease is insulative, when it adheres to the electrical contact portion, there is a drawback that poor conduction occurs.

  Further, in order to reduce the size of the push-push type card connector 21, only one slider 26 is provided on one side of the connector 21, so that only one side of the card 31 contacts the slider 26. Therefore, when the card 31 is ejected, the card 31 is tilted and twisted with respect to the connector 21 as shown in FIG.

  A connector similar to the first conventional card connector is described in a publication distributed before the present application (see, for example, Patent Documents 1 and 2).

  Next, the second conventional card connector will be described with reference to publications distributed before the present application (see, for example, Patent Document 3).

  FIG. 11 is a front view showing a state in which the card 51 is inserted into the card connector 41 (the cover is removed) (hereinafter sometimes referred to as “connector 41”), and FIG. FIG. 13 is a front view showing a state where the card 51 is discharged from the connector 41. FIG.

  A number of contacts 43 are held in a row near the center of the inner portion 42 a in the housing 42 of the connector 41. On the left side in the housing 42, an eject bar (that is, a slider) 44 is held so as to be slidable in the vertical direction. The eject bar 44 is constantly urged toward the inlet 42b side of the housing 42 by a compression coil spring 45. One end 46a of the cam follower 46 is engaged with the groove 44a of the heart cam formed in the eject bar 44, and the other end 46b of the cam follower 46 is rotatably supported by the housing 42. In addition, a corner of the tip of the card 51 comes into contact with the protrusion 44 b formed on the eject bar 44. Further, a rubber brake 47 is disposed at the left corner of the inlet portion 42b.

  When the card 51 is inserted into the housing 42 by an operator's fingers, one corner of the tip of the card 51 pushes the protrusion 44b of the eject bar 44. Therefore, the eject bar 44 slides from the inlet portion 42b side to the inner portion 42a side while compressing the compression coil spring 45. When the insertion process of the card 51 is completed, each contact (not shown) of the card 51 is connected to each contact 43 of the connector 41. At this time, the operation of the eject bar 44 is regulated by the cam follower 46.

  When the card 51 is ejected from the housing 42, a push button (not shown) provided on the housing 42 or the card 51 is pushed. Then, the eject bar 44 is released from the lock by the cam follower 46, and slides from the back part 42a side to the inlet part 42b side by the restoring force of the compression coil spring 45, and reaches the state shown in FIG. At this time, since the protruding portion 44b of the eject bar 44 pushes the tip of the card 51, the card 51 together with the eject bar 44 reaches the state shown in FIG. In this state, one end 44 c of the eject bar 44 starts to compress the rubber brake 47. Subsequently, as shown in FIG. 13, since the rubber brake 47 is elastically deformed in a direction orthogonal to the compression direction, the abutting portion 47 a at the tip of the triangle is in pressure contact with one side portion of the card 51. However, in FIG. 13, the contact portion 47 a is exaggerated so as to bite into the card 51. Therefore, the card 51 is prevented from jumping out of the housing 42 unnecessarily. If the rubber brake 47 is provided with the hollow portion 47b, the rubber brake 47 can be easily elastically deformed.

JP 2001-143816 A JP 2005-317383 A JP-A-2005-353368

  The first conventional connector has the disadvantage that the card pops out of the connector and the card is not ejected by tilting with respect to the connector.

  Further, the second conventional connector can prevent the card from jumping out of the connector, but has a drawback that an extra member called a rubber brake is required.

  Therefore, the present invention provides a card connector that improves the drawbacks of the two conventional connectors, can prevent the card from jumping out of the connector with a simple structure, and does not tilt the cord with respect to the connector. It is something to try.

  The present invention employs the following means in order to solve the above problems.

  1. A housing 2, a first detection terminal 4 held by the housing, a second detection terminal 5 held by the housing, a slider held by the housing, inserted by the card 11, and ejected by the card 6, the first detection terminal includes a fixed terminal portion 4 a, a card contact portion 4 b that can be in contact with and separated from a side edge of the card, and the fixed terminal portion. An arm portion 4c for connecting the card contact portion, the second detection terminal is a fixed terminal portion 5a, and a card contact portion 5b that can be contacted and separated from a side edge of the card; A terminal contact portion 5c formed at the tip of the card contact portion and capable of contacting and separating from the arm portion of the first detection terminal, the fixed terminal portion, and the card contact portion. The side contact edge of the card abuts against the card contact portion of the second detection terminal, so that the terminal contact portion pushes the arm portion of the first detection terminal. A card connector for separating a card contact portion of a detection terminal from a side edge of the card.

  2. The card connector according to 1, wherein the card contact portion of the first detection terminal and the card contact portion of the second detection terminal are formed in an arc shape.

  3. A housing 2; a first detection terminal 14 held in the housing; a second detection terminal 15 held in the housing; a slider held in the housing and inserted by the card 11 and ejects the card. 6 and a card connector having a detection terminal slider 16 that is held in the housing and can be slid in the width direction of the housing by the card, the first detection terminal is a fixed terminal portion 14a. The card contact portion 14b that can be contacted and separated from the side edge of the card, and the arm portion 14c that connects the fixed terminal portion and the card contact portion, the second detection terminal, A fixed terminal portion 15a, a card contact portion 15b capable of contacting and separating from the front end side of the card, and the card contact portion A terminal contact portion 15c that is formed at the tip and can be contacted and separated from the arm portion of the first detection terminal, and an arm portion 15d that connects the fixed terminal portion and the card contact portion. When the side edge of the card abuts against the detection terminal slider, the detection terminal slider pushes the arm portion of the first detection terminal so that the card contact portion of the first detection terminal becomes the side edge of the card. A card connector in which the terminal contact portion of the second detection terminal is in contact with the arm portion of the first detection terminal by being separated from the side and the front end side of the card is in contact with the card contact portion of the second detection terminal .

  4). 4. The card connector according to 3 above, wherein the detection terminal slider has a slope portion 16a, and a side edge of the card contacts the slope portion.

  5. 4. The card connector according to 3, wherein the card contact portion of the first detection terminal is formed in an arc shape.

  6). 4. The card connector according to 1 or 3, wherein the card contact can be recognized by detecting that the terminal contact portion of the second detection terminal is in contact with the arm portion of the first detection terminal.

  As is apparent from the description of the specification, the present invention has the following effects.

  1. When the side edge of the card comes into contact with the card contact portion of the second detection terminal, the terminal contact portion pushes the arm portion of the first detection terminal to separate the card contact portion of the first detection terminal from the side edge of the card. .

  Further, when the side edge of the card abuts against the detection terminal slider, the detection terminal slider pushes the arm portion of the first detection terminal to separate the card contact portion of the first detection terminal from the side edge of the card, When the front end side of the card contacts the card contact portion of the second detection terminal, the terminal contact portion of the second detection terminal contacts the arm portion of the first detection terminal.

  Therefore, the card can be prevented from jumping out of the connector with a simple configuration, and the card is not inclined with respect to the connector.

  2. Of the card contact portion of the first detection terminal and the card contact portion of the second detection terminal, at least the former is formed in an arc shape. Accordingly, since the frictional resistance is small, the card is smoothly inserted and discharged.

  3. The detection terminal slider is formed with a slope portion, and the side edge of the card contacts the slope portion, so that the detection terminal slider slides smoothly.

  4). Since it detects that the terminal contact part of the 2nd detection terminal contacted the arm part of the 1st detection terminal, it can recognize that the card was inserted in the connector.

  The card connector of the two embodiments of the present invention will be described.

  A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a top view showing a part of a shell 9 disposed on the top surface of a card connector 1 (hereinafter sometimes referred to as “connector 1”). FIG. 2 is a top view showing an initial insertion state in which the card 11 is inserted from the card insertion slot 10 of the connector 1 until it abuts against the slider 6. However, the shell 9 has been removed. FIG. 5 is a top view of a state in which the card 11 is further inserted into the connector 1 and locked.

  The first detection terminal 4 is press-fitted and held in the insulator (that is, the housing) 2 on the back side of the connector 1 and extends in the direction of the card insertion slot 10. The first detection terminal 4 includes an SMT (surface mount technology) terminal portion 4a soldered to the substrate on the press-fitted side, and an arc-shaped card contact portion 4b on the side extending in the direction of the card insertion slot 10. And have.

  The second detection terminal 5 is press-fitted and held in the insulator 2 on the back side of the connector 1, and the SMT terminal portion 5 a soldered to the board on the press-fitted and held side and the side extending in the direction of the card insertion slot 10. Are provided with an arc-shaped card contact portion 5b, and a terminal contact portion 5c that contacts the arm portion (the portion from the SMT terminal portion 4a to the card contact portion 4b) 4c of the first detection terminal 4 at the tip of the card contact portion 5b. . The portion from the SMT terminal portion 5a to the card contact portion 5b of the second detection terminal 5 is an arm portion 5d.

  The slider 6 for discharging the card 11 shown on the left side of FIG. 1, the compression coil spring 7 for biasing the slider 6, and the hook pin 8 for locking the slider 6 are components of the discharging mechanism of the connector 1. The configuration is the same as that of a general push-push type card connector.

  Next, the operation of the first embodiment will be described with reference to FIGS.

  When the card 11 is inserted into the connector 1, as shown in FIG. 2, first, one corner on the front end side of the card 11 comes into contact with the bottom of the slider 6. At this time, the card contact portion 4 b of the first detection terminal 4 serves as a guide by contacting the side edge of the card 11. In this state, the second detection terminal 5 is not in contact with the card 11.

  Further, as shown in FIG. 3, when the card 11 is inserted into the connector 1, a plurality of card pads (not shown) provided on the lower surface of the card 11 come into contact with the plurality of signal terminals 3 of the connector 1. Start. At this stage, since the card 11 is not in contact with the second detection terminal 5, the second detection terminal 5 is not displaced. Only the first detection terminal 4 is in contact with the side edge of the card 11 and still serves as a guide so that the card 11 does not tilt with respect to the insertion direction.

  Furthermore, as shown in FIG. 4, when the card 11 is inserted into the connector 1, the other corner on the front end side of the card 11 comes into contact with the card contact portion 5 b of the second detection terminal 5. 1 Displaces in the direction of the detection terminal 4. When the card contact portion 5b is displaced, the terminal contact portion 5c comes into contact with the arm portion 4c of the first detection terminal 4, so that electrical connection is established. At this moment, the connector 1 recognizes that the card 11 has been inserted into the connector 1. Since the first detection terminal 4 having a cantilever structure is displaced to the right by being pushed by the terminal contact portion 5 c of the second detection terminal 5, the card contact portion 4 b of the first detection terminal 4 is the side edge of the card 11. Separate from.

  As shown in FIG. 5, in a state where the card 11 is completely inserted into the connector 1, that is, in a locked state, the second detection terminal 5 abuts on the first detection terminal 4 as in FIG. The card contact portion 4 b of the 1 detection terminal 4 is separated from the side edge of the card 11.

  An operation in which the card 11 is unlocked and the card 11 is ejected from the connector 1 will be described. When the card 11 is unlocked, the card 11 is ejected in the direction opposite to the insertion direction. That is, in the initial ejection state of the card 11, the state is the same as in FIG. 4, and at this time, the second detection terminal 5 is in contact with the card 11. When the card 11 is further ejected, the card 11 is separated from the card contact portion 5b of the second detection terminal 5 and the terminal contact portion 5c is separated from the arm portion 4c of the first detection terminal 4 as shown in FIG. Separate. Therefore, the first detection terminal 4 tries to return to the original position and starts to contact the side edge of the card 11. In the state where the slider 6 is completely returned to the original position, that is, in the state where the ejection of the card 11 shown in FIG. 2 is completed, the card contact portion 4b of the first detection terminal 4 contacts the side edge of the card 11. ing.

  2 and 3, the first detection terminal 4 and the slider 6 are arranged on both sides of the connector 1 with the card 11 in between and are in contact with the side edges of the card 11. Since the card contact portion 4b of the first detection terminal 4 is located near the card insertion opening 10 of the connector 1, it serves as a guide when the card 11 is inserted.

  Next, in the state of FIG. 5 in which the card 11 is completely inserted into the connector 1, the second detection terminal 5 can push the side edge near the tip of the card 11. Regarding the thickness direction of the card 11, each signal terminal 3 presses the card 11 in the direction of the shell 9, and regarding the width direction of the connector 1, the second detection terminal 5 sets the width direction of the card 11 to the direction of the slider 6. Hold on. Therefore, electrical disconnection caused by fluttering (swinging) of the card 11 due to vibration or impact is reduced. Subsequently, when the lock of the card 11 is released, the card 11 is ejected from the connector 1 by utilizing the force that the compressed coil spring 7 expands. Since the compression coil spring 7 is in the most compressed state at the moment of unlocking, the force for discharging the card 11 is the largest. Therefore, the second detection terminal 5 suppresses the speed of the card 11 by coming into contact with the card 11, but the second detection terminal 5 receives a force equivalent to the deformation of the first detection terminal 4, It can abut against the card 11 more strongly than the case of the second detection terminal 5 alone. Accordingly, the speed at the initial discharge of the card 11 decreases.

  Further, when the card 11 is ejected from the connector 1, the second detection terminal 5 is separated from the card 11, but at this moment, the first detection terminal 4 contacts the side edge of the card 11. In the state of FIG. 3 than in the state of FIG. 4, the compression coil spring 7 is slightly expanded, so that the force for discharging the card 11 is weak. In the state of FIG. 3, there is a problem that the card 11 is not ejected when it comes into contact with the card 11 with the force of the second detection terminal 5 at the initial ejection of the card 11. However, in the connector 1 according to the first embodiment, the second detection terminal 5 does not contact the card 11 and the first detection terminal 4 contacts the card 11. Moreover, since the arm part 4c is long, the 1st detection terminal 4 can contact | abut to the card | curd 11 with a weaker force than the 2nd detection terminal 5. FIG. Therefore, the card 11 does not stop in the middle of ejection, and the first detection terminal 4 has the card contact portion 4b in the vicinity of the card insertion slot 10, so that until the end of ejection of the card 11 shown in FIG. By contacting the card 11, the discharging speed of the card 11 can be suppressed.

  A second embodiment of the present invention will be described with reference to FIGS. In the description of the second embodiment, description of the same points as in the first embodiment will be omitted, and different points will be described.

  A detection terminal slider 16 that can slide in the width direction of the housing 2 abuts on the arm portion 14 c of the first detection terminal 14. When the slope 16a is formed on the detection terminal slider 16, and one corner of the end of the card 11 pushes the slope 16a, the detection terminal slider 16 extends along the rail 17 from FIG. 6 to FIG. And slide. At this time, since the arm portion 14c of the first detection terminal 14 is pushed rightward by the detection terminal slider 16, the first detection terminal 14 is displaced. Therefore, the card contact portion 14 b of the first detection terminal 14 is separated from the card 11. When the card 11 is completely inserted into the connector 1, as shown in FIG. 8, the tip side of the card 11 presses the card contact portion 15 b of the second detection terminal 15, so that the terminal contact portion of the second detection terminal 15 15 c contacts the vicinity of the SMT terminal portion 14 a of the first detection terminal 14. At this moment, the connector 1 recognizes that the card 11 has been inserted into the connector 1.

  In the second embodiment, the detection terminal slider 16 hardly affects the insertion / ejection speed of the card 11. Further, the force with which the second detection terminal 15 biases the card 11 in the ejecting direction in a state where the card 11 shown in FIG. 8 is completely inserted into the connector 1 is extremely weak.

  Therefore, the card 11 is prevented from jumping out from the connector 1 by controlling only the spring property of the first detection terminal 14.

It is a top view of the connector for cards of Example 1 of the present invention. However, a part of the shell is cut off. It is a top view of the insertion initial state inserted until the card contacts the slider from the card insertion slot of the connector. However, the shell has been removed. FIG. 3 is a top view of a state in which a card is further inserted from the initial insertion state shown in FIG. 2. FIG. 4 is a top view of a state where a card is further inserted from the state shown in FIG. 3. It is a top view of the state which inserted the card into the connector completely, ie, a locked state. It is a top view of the insertion initial state inserted in the card connector of Example 2 of the present invention until the card comes into contact with the slider from the card insertion opening of the connector. However, the shell has been removed. FIG. 7 is a top view of a state in which a card is further inserted from the initial insertion state shown in FIG. 6. It is a top view of the state which inserted the card into the connector completely, ie, a locked state. It is a top view of the 1st conventional card connector, and shows the state in the middle of a card being inserted in the connector. It is a top view of the same connector from which a shell was removed, and shows the state in the middle of a card being inserted in the same connector. It is a front view in the state where the card is inserted in the 2nd conventional card connector. However, the cover has been removed. It is a front view of the state in the middle of discharging a card from the connector. It is a front view in the state where the card was discharged from the connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Card connector, connector 2 Insulator, housing 3 Signal terminal 4 1st detection terminal 4a SMT terminal part (fixed terminal part)
4b Card contact portion 4c Arm portion 5 Second detection terminal 5a SMT terminal portion (fixed terminal portion)
5b Card contact portion 5c Terminal contact portion 5d Arm portion 6 Slider 7 Compression coil spring 8 Hook pin 9 Shell 10 Card insertion slot 11 Card 14 First detection terminal 14a SMT terminal portion (fixed terminal portion)
14b Card contact portion 14c Arm portion 15 Second detection terminal 15a SMT terminal portion (fixed terminal portion)
15b Card contact portion 15c Terminal contact portion 15d Arm portion 16 Detection terminal slider 16a Slope portion 17 Rail

Claims (6)

A card having a housing, a first detection terminal held in the housing, a second detection terminal held in the housing, and a slider held in the housing, inserted by the card, and ejected from the card Connector for
The first detection terminal includes a fixed terminal portion, a card contact portion that can be in contact with and separated from a side edge of the card, and an arm portion that connects the fixed terminal portion and the card contact portion. And
The second detection terminal is formed at a fixed terminal portion, a card contact portion that can be in contact with and separated from a side edge of the card, a tip of the card contact portion, and the first detection terminal. A terminal contact portion that can abut against and separate from the arm portion, and an arm portion that connects the fixed terminal portion and the card contact portion,
When the side edge of the card abuts against the card contact portion of the second detection terminal, the terminal contact portion pushes the arm portion of the first detection terminal so that the card contact portion of the first detection terminal is placed on the card. A card connector characterized by being separated from a side edge.   The card connector according to claim 1, wherein the card contact portion of the first detection terminal and the card contact portion of the second detection terminal are formed in an arc shape. A housing, a first detection terminal held by the housing, a second detection terminal held by the housing, a slider held by the housing, inserted by a card, and discharging the card; and the housing And a card connector having a detection terminal slider that can be slid in the width direction of the housing by the card.
The first detection terminal includes a fixed terminal portion, a card contact portion that can be in contact with and separated from a side edge of the card, and an arm portion that connects the fixed terminal portion and the card contact portion. And
The second detection terminal is formed at a fixed terminal portion, a card contact portion that can be in contact with and separated from a front end side of the card, a tip of the card contact portion, and the first detection terminal. It is composed of a terminal contact portion that can be in contact with and separated from the arm portion, and an arm portion that connects the fixed terminal portion and the card contact portion,
When the side edge of the card contacts the detection terminal slider, the detection terminal slider pushes the arm portion of the first detection terminal so that the card contact portion of the first detection terminal is moved to the side edge of the card. Away from
A card connector, wherein a front end side of the card abuts on a card contact portion of the second detection terminal, whereby a terminal contact portion of the second detection terminal abuts on an arm portion of the first detection terminal. .   The card connector according to claim 3, wherein the detection terminal slider has a slope portion, and a side edge of the card abuts the slope portion.   The card connector according to claim 3, wherein the card contact portion of the first detection terminal is formed in an arc shape.   The card connector according to claim 1, wherein the card connector can recognize that the card has been inserted by detecting that the terminal contact portion of the second detection terminal is in contact with the arm portion of the first detection terminal.

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