JP5480003B2 - Tray type card connector - Google Patents

Description

  The present invention relates to a tray type card connector. In particular, the present invention relates to the structure of a tray-type connector that is electrically connected to a memory card such as a SIM (Subscriber Identity Module) card.

  A memory card, which is a card-type storage device, employs a flash memory as a storage medium. A memory card is very small and consumes little electric power for reading and writing data. For example, it is widely used as a recording medium for portable information devices represented by mobile phones and PDAs (Personal Digital Assistance).

  In recent years, a mobile phone is equipped with a memory card for information management and a memory card for recording. The former information management memory card is, for example, a SIM card, and the latter recording memory card is, for example, an SD (Secure Digital) card.

  In the SIM card, contractor information contracted with a mobile phone company is recorded. The user can be identified by inserting the SIM card into the mobile phone. In other words, by replacing the SIM card, it is possible to use mobile phones of different models that are handled by the same contractor.

  In general, a plurality of connection terminals are exposed on one surface of the SIM card. The bellows-type contact provided in the SIM card connector biases these connection terminals, whereby the SIM card and the card connector are electrically connected.

  As the card connector described above, there is disclosed a tray type card connector that facilitates the insertion / removal of a card into / from the tray and does not operate the ejection mechanism when a tray without a card is accommodated in the connector ( For example, see Patent Document 1).

  The card connector according to Patent Document 1 includes a housing in which a concave portion is formed, a cover that covers the concave portion of the housing, a tray that accommodates the card and can be advanced and retracted, and an eject mechanism that ejects the card. The ejection mechanism has a slider that can move following the card only when the card is accommodated in the tray.

  The card connector described above is a tray type card connector disposed inside an opening / closing lid provided on a side surface of a mobile phone or the like, and the card connector can be miniaturized. A tray-type card connector having excellent tray operability is disclosed (see, for example, Patent Document 2).

  The card connector according to Patent Document 2 is disposed inside an opening / closing lid provided on a side surface of a mobile phone or the like, and slides the tray in a state where the opening / closing lid opens the tray that stores the card and the tray that stores the card. The tray is configured to be pulled out of the connector body in accordance with the operation of opening the opening / closing lid and pushed into the connector body in accordance with the operation of closing the opening / closing lid.

JP 2006-351426 A JP 2009-81022 A

  However, since the card connector according to Patent Document 1 includes an ejection mechanism, the external dimensions are large. Therefore, a card connector with an eject mechanism is not appropriate for mounting on a portable information device that is required to be small and thin, such as a recent cellular phone.

  On the other hand, the card connector according to Patent Document 2 has a simple configuration and a small outer dimension. Therefore, the card connector according to Patent Document 2 is suitable for mounting on a portable information device that is required to be small and thin.

  However, the card connector according to Patent Document 2 has a problem that the degree of freedom in designing a portable information device is restricted, for example, a claw for pulling out the tray needs to be provided inside the opening / closing lid.

  Furthermore, the card connector according to Patent Document 2 needs to pull out the card from the tray by pressing the surface of the end of the card with a fingertip. For this reason, there is a problem that it is difficult to take out the card from the tray when the area to be pressed with a finger is narrow or when the fingertip is dry.

  If it is a tray type card connector with a simple structure and can easily remove the card from the tray, the portable information device can be miniaturized and the card can be easily removed. It is. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such a problem, and provides a tray-type card connector having a simple configuration and capable of easily removing a card from the tray. With the goal.

  In the reverse type card connector, the present inventors take out the card from the tray by configuring the card connector so that the card is inclined by the urging force of the contact when the tray is pulled out from the connector body. Based on this, the inventors have invented the following new tray type card connector.

  (1) a flat plate-like tray having a substantially rectangular first recess on which a card is placed; a flat plate-like housing having a second recess, which is disposed at an end of the printed circuit board and allows the tray to advance and retreat; A cover plate that covers the second recess of the housing; and a plurality of cantilevered contacts that are arranged in the housing and electrically connect the connection terminal provided on one surface of the card and the printed circuit board. The first recess of the tray includes a rear edge that prevents movement of the card when the tray has advanced into the housing, and a front edge that prevents movement of the card when the tray is retracted from the housing. The contact has a front end so that a rear edge of the card is separated from a bottom surface of the first recess when the tray is pulled out from the housing to a predetermined position. Tray type card connector having a resilient oblique piece for biasing the force the card to the front edge of the card to pivot tilts the front edge of the card.

  The tray type card connector according to the invention of (1) includes a flat tray, a flat housing, a cover plate, and a plurality of cantilevered contacts. The tray has a substantially rectangular first recess in which a card is placed. The housing is disposed at an end of the printed circuit board, and has a second recess that allows the tray to advance and retract. The cover plate covers the second recess of the housing. The contacts are arranged in the housing and electrically connect the connection terminals provided on one side of the card and the printed board.

  The first recess of the tray has a trailing edge and a leading edge. The trailing edge prevents the card from moving when the tray is advanced into the housing. The leading edge prevents the card from moving when retracted from the housing.

  The contact has an elastic slant piece. This elastic slant is a force that tilts the card with the front edge of the card as a fulcrum so that the rear edge of the card is separated from the bottom surface of the first recess when the tray is pulled out from the housing to a predetermined position. To the front edge of the card.

  The tray may be made of an elastic member that can be easily bent and deformed (bent) in the thickness direction, or a synthetic resin having an insulating property may be molded to obtain a tray having a desired shape, and a rigid body having conductivity. The metal plate may be processed to obtain a tray having a desired shape.

  The housing has an insulating property. The insulating housing may be a housing made of a non-conductive material, and a synthetic resin can be molded to obtain an insulating housing having a desired shape.

  The housing is preferably provided with a pair of opposing side walls that guide both side surfaces of the tray, and a space surrounded by the side walls can be a second recess in which the tray can advance and retreat. A stop wall that abuts the front portion of the tray and stops the advancement of the tray may be provided in the second recess, and this stop wall may be provided on the cover plate. When the tray moves forward and backward in the second recess, it means that a card can be placed on the tray and the tray can be advanced into the housing together with the card, or can be retracted from the housing.

  The printed circuit board includes a rigid rigid board, can include a single-sided board with a pattern on only one side, can include a double-sided board with a pattern on both sides, and includes a multilayer board in which insulators and patterns are stacked Can do.

  The housing being arranged at the end of the printed circuit board means a horizontally mounted connector that is mounted on the printed circuit board so that the connecting direction of the card connector and the card is horizontal. The horizontally mounted connector is also called a side connector, and can be mounted on a portable information device that is required to be thin because it can be mounted on a printed circuit board at a low height.

  The cover plate is preferably made of a conductive metal plate, and the developed metal can be formed to obtain a conductive cover plate having a desired shape. The cover plate can function as a shield plate that surrounds the card and protects against unnecessary electromagnetic waves, and can also function as a conductive shell that covers the second recess and forms the outer shell of the card connector.

  One side of the card is the side where the sectioned pattern that becomes the connection terminal is exposed, and the card and tray urged by the contact are restricted by the cover plate from moving in the plate thickness direction, A predetermined contact pressure can be obtained.

  The contact has conductivity, and a conductive contact having a desired shape can be obtained by punching or bending a conductive metal plate. In consideration of easiness of processing, spring characteristics, conductivity, and the like, for example, a copper alloy is preferably used for the contact, but the contact is not limited to the copper alloy.

  The contact is composed of a cantilever leaf spring called a bellows contact or a cantilever contact. The contact includes a fixed piece fixed to the housing, and the fixed piece includes a form that is press-fitted into the housing, and the fixed piece may include a single-piece form that is molded into the housing. The fixed piece is preferably formed with a lead portion soldered to the printed circuit board.

  The elastic slant piece is an elastic piece extending so as to incline upward from the fixed piece. In addition, the elastic slant piece has a contact point that contacts the connection terminal of the card. When the tray is advanced into the housing, the elastic inclined piece is tilted by being pushed by the card, and the contact can apply a predetermined contact pressure to the connection terminal of the card by the reaction force (elastic return force) of the elastic inclined piece.

  The tray type card connector according to the invention of (1) includes a tray, a housing, a cover plate, and a plurality of contacts, and has a simple configuration. The tray type card connector according to the invention of (1) is suitable for mounting on a portable information device that is required to be small and thin.

  In the tray type card connector according to the invention of (1), the contact has an elastic slant piece, and when the tray is pulled out from the housing to a predetermined position, the back end edge of the card is the first. 1 The card tilting force is applied to the front end edge of the card so as to be separated from the bottom surface of the concave portion with the front end edge side of the card as a fulcrum. Therefore, it is easy to take out the card from the tray.

  (2) The card has a cut-out oblique side for preventing erroneous mounting at one corner on the rear edge side, and the tray has one surface of the card on which the connection terminal is provided, the first recess. (1) In the corner portion of the rear edge of the first recess, a hypotenuse wall that engages with the notched hypotenuse and defines the mounting direction of the card is disposed on the opposite side of the bottom surface of the first recess. Tray type card connector.

  The tray type card connector according to the invention of (2) is suitable for a so-called reverse type card connector in which one surface of the card on which the connection terminal is provided is disposed on the opposite side to the bottom surface of the first concave portion of the tray. Yes.

  The tray type card connector according to the present invention has a simple structure, and the card tilts with the front edge of the card as a fulcrum so that the rear edge of the card is separated from the bottom surface of the first recess when the tray is pulled out. Therefore, the card can be easily taken out, which is convenient.

It is a perspective view which shows the structure of the tray type card connector by one Embodiment of this invention, and has shown the reverse type card connector. It is a perspective view which shows the external appearance of the tray for reverse types with which the tray type card connector by the said embodiment is equipped. It is a perspective view which shows the structure of the tray type card connector by the said embodiment, and is the state figure by which the tray for reverse types was pulled out. FIG. 3 is an exploded perspective view showing a configuration of a main body of a tray type card connector according to the embodiment, and illustration of the tray is omitted. 5A and 5B are diagrams illustrating a configuration of a main body of a tray type card connector according to the embodiment, FIG. 5A is a plan view of the main body, FIG. 5B is a front view of the main body, and FIG. FIG. 5D is a bottom view of the main body. FIG. 6A is a longitudinal sectional view of a tray type card connector according to the embodiment, FIG. 6A is a state diagram in which a reverse type tray is inserted into the main body, and FIG. 6B is a reverse type tray. FIG. 4 is a state diagram in which the card is tilted by being pulled out from the main body. FIG. 3 is a perspective view of a tray type card connector according to the embodiment, and is a state diagram in which a reverse type tray is pulled out from a main body. It is a perspective view of the tray type card connector according to the embodiment, and is a state diagram in which the card is tilted.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[Configuration of tray type card connector]
(Overall configuration of card connector)
First, the configuration of a tray type card connector according to an embodiment of the present invention will be described. FIG. 1 is a perspective view showing a configuration of a tray type card connector according to an embodiment of the present invention, and shows a reverse type card connector.

  FIG. 2 is a perspective view showing an appearance of a reverse type tray provided in the tray type card connector according to the embodiment. FIG. 3 is a perspective view showing a configuration of a tray type card connector according to the embodiment, and is a state diagram in which a reverse type tray is pulled out.

  FIG. 4 is a perspective exploded view showing the configuration of the main body of the tray-type card connector according to the embodiment, and the illustration of the tray is omitted. 5A and 5B are diagrams showing the configuration of the main body of the tray-type card connector according to the embodiment. FIG. 5A is a plan view of the main body, FIG. 5B is a front view of the main body, and FIG. (C) is a right side view of the main body, and FIG. 5 (D) is a bottom view of the main body.

  1 to 3, a tray-type card connector (hereinafter abbreviated as a connector) 10 according to an embodiment of the present invention includes a flat reverse tray 3, a flat housing 4, and A cover plate 5 is provided.

  With reference to FIG. 1 or FIG. 4, the connector 10 includes four cantilevered contacts 61 arranged in the front row of the housing 4 and three cantilevered contacts 62 arranged in the rear row of the housing 4. Yes. These contacts 61 and 62 electrically connect the connection terminal 1 a provided on one surface 11 of the card 1 and the printed board 1 p.

  With reference to FIGS. 1 to 4, the tray 3 has a substantially rectangular first recess 31 on which the card 1 is placed. The housing 4 is disposed at the end of the printed circuit board 1p. The housing 4 has a second recess 42 in which the tray 3 can be advanced and retracted. The cover plate 5 covers the second recess 42 of the housing 4.

  Referring to FIGS. 1 to 3, the first recess 31 of the tray 3 has a rear edge 31 a that is partially formed and a pair of front edges 31 b and 31 b that are spaced apart from each other. The trailing edge 31 a prevents the card 1 from moving when the tray 3 has advanced into the housing 4. The pair of front edges 31 b and 31 b prevent the card 1 from moving when retracted from the housing 4.

  Referring to FIGS. 1 to 3, the card 1 has a notched hypotenuse 1b at one corner on the rear end edge 13a side for preventing erroneous mounting. On the other hand, the tray 3 has a hypotenuse wall 3 b at the corner of the rear edge 31 a of the first recess 31. The oblique side wall 3b can be engaged with the notched oblique side 1b to define the mounting direction of the card 1.

  Referring to FIGS. 1 to 3, the illustrated connector 10 is a so-called reverse type in which one surface 11 of the card 1 on which the connection terminal 1 a is provided is disposed on the opposite side to the bottom surface of the first recess 31 of the tray 3. This is a card connector.

  Referring to FIGS. 1 to 3, the tray 3 has a notch 32 on the rear edge 31 a side for lifting the card 1 placed in the first recess 31 with a finger. Further, the tray 3 has an escape portion 33 on the front edge 31b side for tilting the front edge 13b of the card 1 when the tray 3 is pulled out from the housing 4. Further, on both side surfaces of the tray 3, a pair of steps 34, 34 are formed that abut against the housing 4 and define the pushing depth of the tray 3 when the tray 3 is advanced into the housing 4.

(Structure of card connector body)
Next, the configuration of the main body 10B of the connector 10 according to the embodiment will be described. Referring to FIG. 4 or 5, the main body 10 </ b> B includes a housing 4, a cover plate 5, and a plurality of contacts 61 and 62.

  Referring to FIG. 1, the main body 10B according to the embodiment is mounted on the other surface 12p of the printed circuit board 1p. The main body 10B can be mounted on one surface 11p of the printed circuit board 1p. The main body 10B according to the embodiment shows a reverse type card connector, but it can also be a normal type card connector by changing the mounting direction on the printed circuit board 1p.

  Referring to FIG. 2 or 4, the housing 4 is provided with a pair of opposed side walls 41 and 41 for guiding both side surfaces 31 c and 31 c of the tray 3, and a space surrounded by the side walls 41 and 41. Is defined as a second recess 42 in which the tray 3 can be advanced and retracted. Then, the tray 3 on which the card 1 is placed can be inserted from an opening (slot) surrounded by the cover plate 5 (see FIG. 1).

  Referring to FIG. 4 or 5, the cover plate 5 has a main surface plate 50 having a large area facing the second recess 42. The cover plate 5 has a pair of opposed bent pieces 51 and 51 obtained by bending both wings of the main surface plate 50 at substantially right angles.

  With reference to FIG. 4 or FIG. 5, a pair of locking holes 51a and 51a are opened in the pair of bent pieces 51 and 51. On the other hand, the housing 4 is provided with a pair of engaging protrusions 41a and 41a. The cover plate 5 is locked to the housing 4 by engaging the locking holes 51 a with the engaging protrusions 41 a.

  Referring to FIG. 4 or FIG. 5, the cover plate 5 has a pair of opposed cantilevered leaf spring pieces 51b and 51b. These leaf spring pieces 51b and 51b sandwich both side surfaces 31c and 31c of the tray 3 (see FIG. 2).

  Referring to FIG. 2 or 4, a pair of depressions 31 d and 31 d are formed on the side of the front edge 31 b of both side surfaces 31 c and 31 c of the tray 3. When the tray 3 is pulled out from the main body 10B and the bent portions of the pair of leaf spring pieces 51b and 51b are depressed into the pair of depressions 31d and 31d, it is difficult to further pull out the tray 3.

  Referring to FIG. 4 or FIG. 5, the contact 61 includes a fixed piece 6a, an elastic oblique piece 6b that can be elastically deformed, and an extending piece 6c. Similarly, the contact 62 includes a fixed piece 6a, an elastic oblique piece 6b that can be elastically deformed, and an extending piece 6c. Further, the elastic slanting piece 6b and the extending piece 6c of the contact 61 branch from the fixed piece 6a into a fork. Similarly, the elastic slanting piece 6b and the extending piece 6c of the contact 62 are bifurcated from the fixed piece 6a.

  Referring to FIG. 4 or FIG. 5, the fixed piece 6 a of the contact 61 is fixed to the housing 4. A part of the fixed piece 6a of the contact 61 protrudes forward of the housing 4 to form a lead portion 61f that is soldered to the printed circuit board 1p.

  Referring to FIG. 4 or FIG. 5, the fixing piece 6 a of the contact 62 is fixed to the housing 4. A part of the fixed piece 6a of the contact 62 protrudes rearward of the housing 4 to form a lead portion 62r that is soldered to the printed circuit board 1p. Further, a part of the fixed piece 6a of the contact 62 protrudes forward of the housing 4 to form a lead portion 62f that is soldered to the printed circuit board 1p. The lead portions 61f and the lead portions 62f are alternately arranged in a line.

  Referring to FIG. 4 or FIG. 5, the contact 61 and the contact 62 have the same main body composed of the fixed piece 6a, the elastic inclined piece 6b, and the extending piece 6c. I will explain.

  Referring to FIG. 4, the elastic slanting piece 6b is an elastic piece extending so as to incline upward from the fixed piece 6a. Further, the elastic slanting piece 6b is provided with a contact point that contacts the connection terminal 1a of the card 1 at the end of the extending piece 6c. When the tray 3 is advanced into the housing 4, the elastic slant piece 6 b is tilted by being pushed by the card 1, and the contact is given a predetermined contact pressure by the reaction force (elastic return force) of the elastic slant piece 6 b. Can be granted.

[Operation of tray-type card connector]
Next, the operation and effect of the connector 10 will be described while explaining the operation of the connector 10 according to the embodiment.

  FIG. 6 is a longitudinal sectional view of the tray type card connector according to the embodiment, FIG. 6A is a state diagram in which a reverse type tray is inserted into the main body, and FIG. 6B is a reverse view. FIG. 6 is a state diagram in which the type tray is pulled out from the main body and the card is tilted.

  FIG. 7 is a perspective view of the tray type card connector according to the embodiment, and is a state diagram in which the reverse type tray is pulled out from the main body. FIG. 8 is a perspective view of the tray-type card connector according to the embodiment, in which the card is tilted.

  Referring to FIG. 6A, the tray 3 is inserted into the main body 10B, and the plurality of contacts 61 and 62 electrically connect the connection terminal 1a provided on one surface 11 of the card 1 and the printed board 1p. ing.

  6A, when the tray 3 is pulled out from the main body 10B to the end (predetermined position) as shown in FIG. 7, the connection between the plurality of contacts 61 and 62 and the connection terminal 1a of the card 1 is established. It has been released.

  In the state shown in FIG. 6B or FIG. 8, the elastic slanting piece 6 b of the contact 62 in the rear row has a force for tilting the card 1 with the front end edge 13 b side of the other surface 12 of the card 1 as a fulcrum. The card 1 is biased toward the front edge 13b of one surface 11 thereof. Accordingly, the card 1 can be tilted so that the rear edge 13 a of the card 1 is separated from the bottom surface of the first recess 31. Then, the card 1 can be easily taken out from the tray 3.

  Referring to FIG. 6A, it is preferable that the distance L between the contact portion (contact point) of the contact 62 and the edge of the printed circuit board 1p is shortened to, for example, about 5 mm. 6B, when the tray 3 is pulled out from the main body 10B to the end, the front edge 13b of the card 1 is slightly over the contact portion of the contact 62. It is preferable to set the positional relationship of the contacts 62 in advance. Thereby, the card | curd 1 can be tilted reliably.

  As described above, the connector 10 according to the embodiment includes the tray 3, the housing 4, the cover plate 5, and the plurality of contacts 61 and 62, and has a simple configuration. And the connector 10 by embodiment is suitable for mounting in the portable information device by which size reduction and thickness reduction are calculated | required.

  Further, the connector 10 according to the embodiment has a simple configuration, and when the tray 3 is pulled out, the rear end edge 13a of the card 1 is tilted so as to be separated from the bottom surface of the tray 3, so that the card can be easily taken out. And convenient.

1 Card 1a Connection Terminal 1p Printed Circuit Board 3 Tray 4 Housing 5 Cover Plate 6b Elastic Slant 10 Connector (Tray Type Card Connector)
13a rear edge (rear edge of card 1)
13b Front edge (front edge of card 1)
31 1st recessed part 31a Trailing edge (trailing edge of tray 3)
31b Front edge (front edge of tray 3)
42 Second recess 61/62 Contact

Claims (2)

A flat tray having a substantially rectangular first recess on which a card is placed;
A flat plate-like housing disposed at an end of the printed circuit board and having a second recess in which the tray can be advanced and retracted;
A cover plate covering the second recess of the housing;
A plurality of cantilevered contacts arranged in the housing and electrically connecting the connection terminals provided on one surface of the card and the printed circuit board;
The first recess of the tray includes a rear edge that prevents movement of the card when the tray has advanced into the housing, and a front edge that prevents movement of the card when the tray is retracted from the housing; Have
The contact has the front edge of the card as a fulcrum so that the rear edge of the card is separated from the bottom surface of the first recess when the tray is pulled out from the housing to a predetermined position. A tray-type card connector having elastic slanting pieces for biasing the tilting force toward the front end edge of the card. The card has a notched hypotenuse at one corner on the rear edge side to prevent erroneous mounting,
The tray defines the mounting direction of the card by engaging the notched oblique side so that one surface of the card on which the connection terminal is provided is disposed on the opposite side of the bottom surface of the first recess. The tray-type card connector according to claim 1, wherein a diagonal wall is provided at a corner of a rear edge of the first recess.

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