JP2013178888A - Tray type card connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive tray type card connector which can be positioned easily when it is incorporated in an electronic apparatus housing.SOLUTION: The tray type card connector 10 includes a card tray 11 in which a memory card A is housed, a housing 13 into which the card tray 11 is inserted, and a plurality of contacts 14, 14, ... projecting into a tray insertion section 12 and coming into contact with the signal terminals of the memory card A housed in the card tray 11. The card tray 11 includes a tray body 20 in which the memory card is housed, and a movable lid 50 disposed on the tray drawing direction side of the tray body 20, and having a front edge lid 56 which is exposed to the outside surface of the housing through an exposure hole 59 formed in the housing when attached to an electronic apparatus housing C. The movable lid 50 is bonded to the tray body 20 movably in the back and forth, right and left and/or up and down directions.

Description

  The present invention relates to a tray-type card connector for electrically connecting a memory card such as an IC card or a flash memory card and a printed wiring board mounted on an electronic device such as a mobile phone or a smartphone.

  Conventionally, a memory card such as an IC card or a flash memory card has been used as an external storage medium of an electronic device such as a mobile phone or a smartphone. The memory card and a printed circuit board mounted on the electronic device are connected to a card connector. Is electrically connected.

  This type of card connector includes a card tray that can accommodate a memory card, a housing having a tray insertion portion into which the card tray is inserted, and a signal terminal of the memory card that protrudes into the tray insertion portion and is accommodated in the card tray. A tray-type card connector is used that includes a plurality of contacts that come into contact with each other and a take-out mechanism that discharges the card tray from the housing.

  This tray-type card connector is attached to an electronic device in such a manner that the front edge lid portion disposed at the end of the card tray in the pull-out direction is exposed on the outer surface of the electronic device housing, and the card tray is housed by a take-out mechanism. By ejecting it further, it protrudes from the outer surface of the device casing in the pulling direction, and by further pulling it out, the memory card can be inserted into and removed from the card tray outside the electronic device.

  The take-out mechanism includes a push-out arm that is rotatably supported at the back of the card in the card insertion / removal direction of the housing, and pushes one end of the push-out arm with a push pin to turn the push-out arm so that the other end of the arm A device in which the rear edge of the card tray is pushed out in the discharge direction on the side is known (for example, see Patent Document 1).

  In addition, as another take-out mechanism, a push-in / push-out mechanism using a heart cam or the like is provided, and the card tray is held at a predetermined position of the housing by the first card pushing operation, and the holding force is released by pushing again. A device that is pushed out in the pull-out direction by a push-out spring is known (for example, see Patent Document 2).

JP 2008-108695 A JP 2003-317861 A

  However, in the conventional techniques as described above, the position of the front edge lid portion with respect to the electronic device casing affects both the mounting tolerance of the printed wiring board to the electronic device casing and the mounting tolerance of the tray type card connector to the printed wiring board. In order to receive, because there is a possibility that the position of the front edge lid portion arranged on the front edge portion of the card tray and the exposure hole formed in the electronic device housing is displaced, which may cause a problem in insertion and removal of the card tray. There is a problem that the installation work requires high accuracy and is very difficult. Therefore, the assembly work requires a high-performance assembly machine and a skilled worker, and the cost increases accordingly. was there.

  Therefore, in view of such a conventional problem, the present invention has been made for the purpose of providing an inexpensive tray-type card connector that can be easily positioned when incorporated in an electronic device casing.

  The feature of the invention according to claim 1 for solving the conventional problems as described above and achieving the intended object is that a card tray for storing a memory card and a tray insertion portion into which the card tray is inserted A tray-type card connector comprising: a housing having a plurality of contacts that project into the tray insertion portion and contact a signal terminal of a memory card accommodated in the card tray. A tray main body to be accommodated, and a front edge lid portion which is disposed on the tray pulling direction side of the tray main body and is exposed to the outer surface of the housing through an exposure hole formed in the housing when attached to the electronic device housing. A movable lid having a movable lid, and the movable lid is joined to the tray body so as to be movable in the front-rear, left-right, and / or vertical directions.

  According to a second aspect of the present invention, in addition to the structure of the first aspect, the card tray has a joint recess that opens toward the other side at one of the joint ends of the tray body or the movable lid. And a joint convex portion to be inserted into the joint concave portion at the other joint end portion, and a gap for position adjustment is formed between the inner surface of the joint concave portion and the outer surface of the joint convex portion. It is to become.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the card tray includes a rod-shaped bonding member supported by either the bonding concave portion or the bonding convex portion, and the bonding member on the other side. And a gap for position adjustment is formed between the inner side surface of the insertion hole and the outer side surface of the joining member.

  As described above, the tray-type card connector according to the present invention protrudes into the tray insertion portion, the card tray in which the memory card is accommodated, the housing having the tray insertion portion into which the card tray is inserted, and the card tray. In the tray type card connector comprising a plurality of contacts that contact signal terminals of the memory card accommodated in the tray, the card tray includes a tray main body in which the memory card is accommodated, and a tray drawing direction side of the tray main body. And a movable lid having a front edge lid portion that is exposed to the outer surface of the housing through an exposure hole formed in the housing when attached to the electronic device housing. The front edge cover of the electronic device casing and card tray is joined to the main body so as to be movable in the front and rear, left and right and / or up and down directions. The alignment of the can be easily.

  Further, in the present invention, the card tray includes a joint concave portion opened toward the other side at one joint end portion of the tray body or the movable body, and the other joint end portion includes the joint concave portion. And a position adjustment gap is formed between the inner side surface of the joint recess and the outer side surface of the projection, so that alignment in the left-right direction can be suitably performed. it can.

  Furthermore, in the present invention, the card tray has a rod-like joining member supported by either the joining concave portion or the joining convex portion, and an insertion hole into which the joining member is inserted on the other side. By forming a gap for position adjustment between the inner side surface and the outer side surface of the joining member, front-rear and top-bottom positioning can be suitably performed.

(A) The top view which shows an example of the tray type | mold card connector which concerns on this invention, (b) is the bottom view. It is a longitudinal cross-sectional view same as the above. It is a disassembled perspective view of a tray type card connector same as the above. It is a bottom view which shows an example of a memory card. It is a bottom view which shows the card tray in FIG. (A) is a top view which shows an example of the movable cover body in FIG. 5, (b) is the same side view. FIG. 6 is a partially enlarged longitudinal sectional view showing a movable lid part of the card tray shown in FIG. 5. It is a longitudinal cross-sectional view for demonstrating the drawer | drawing-out operation | movement of the card tray which concerns on this invention, Comprising: (a) is the state which accommodated the card tray in the housing, (b) is a state in which a slide knob is pulled out. It is the elements on larger scale which show the movable lid part of the card tray at the time of incorporating the tray type card connector concerning the present invention in electronic equipment, (a) is normal, and (b) has shifted in the horizontal direction. FIG. It is a partial expanded longitudinal cross-sectional view which shows the movable cover part of a card tray same as the above, Comprising: (a) is a normal time, (b) is a figure which shows the case where a shift | offset | difference has arisen in the up-down direction and the front-back direction. It is an enlarged vertical sectional view of the movable cover part which shows other embodiment of the card tray in FIG.

  Next, an embodiment of the tray type card connector according to the present invention will be described based on the embodiment shown in FIGS. In the figure, reference numeral 10 denotes a tray-type card connector, and reference numeral A denotes a memory card such as a flash memory card.

  The tray-type card connector 10 includes a cart tray 11 for storing a memory card A, a housing 13 having a tray insertion portion 12 into which the card tray 11 is inserted, and projects into the tray insertion portion 12 to be accommodated in the card tray 11. A plurality of contacts 14 that contact the signal terminals a1, a1,... Of the memory card A, the memory card A is received in the card tray 11, and the card tray 11 is inserted into the tray insertion portion 12 in this state. .. So that the signal terminals a1, a1... Of the memory card A are elastically contacted with the corresponding contacts 14, 14... So that the memory card A and the printed wiring board are electrically connected via the connector. It has become.

  The memory card A is, for example, a small flash memory card A as shown in FIG. 4 and is formed in a rectangular shape having a long card length compared to the entire card width, and another portion at one end in the card full length direction. It has a narrowed portion Aa whose card width is narrower than that of the card.

  The reduced width portion Aa is arranged so as to be shifted to one side in the card width direction, and a plurality of signal terminals a1, a1,... Are arranged side by side.

  Further, the memory card A is formed with a thickened portion Ab having a raised shape on the side opposite to the surface on which the signal terminals are formed at the end opposite to the reduced width portion Aa in the overall length direction of the card. Yes.

  As shown in FIG. 5, the card tray 11 in which the memory card A is accommodated is a flat tray main body 20 in which the memory card A is accommodated, and a movable body disposed on the tray pulling direction side end of the tray main body 20. The lid 50 is provided as a separate body, and the movable lid 50 is joined to the tray body 20 so as to be movable in the floating state, that is, in the forward / backward, left / right and / or up / down directions.

  Here, front and rear, left and right, and top and bottom refer to the tray insertion / removal direction as front and back, the connector width direction as left and right, and the connector thickness direction as top and bottom, respectively.

  The tray main body 20 is formed in a flat plate shape with an insulating synthetic resin, and a card accommodating portion 22 in which the memory card A is accommodated with its longitudinal direction facing the tray insertion direction is formed on one side portion thereof.

  The card accommodating portion 22 is formed in a shape in which one side portion of the tray main body 20 is recessed according to the outer shape of the memory card A, so that one memory card A is accommodated with the side surface of the signal terminal facing the opening side. It has become.

  That is, the card accommodating portion 22 is continuously arranged on the back side in the tray insertion direction of the tray body 20 so that the reduced width portion Aa of the memory card A is fitted, and on the tray drawing direction side of the reduced width recess 26. It is formed in a shape continuously provided with the wide concave portion 27.

  Further, the wide recessed portion 27 is formed with a thickened portion stepped portion 28 into which the thickened portion Ab is fitted so as to be deeper than the other portions, and the memory card A is accommodated with the side surface of the signal terminal facing the opening side. At this time, the memory card A is accommodated in a flat and stable state with respect to the tray body 20.

  On the other hand, an engagement recess 25 is formed on the side surface of the tray body 20 to engage with the retaining pieces 24 arranged on both sides of the tray insertion portion 12. By engaging the engaging protrusion 24a, the tray main body 20 is locked to the housing 13 with a high holding force, and the movement of the tray main body 20 in the pull-out direction can be restricted.

  Further, the tray main body 20 is provided with a junction recess 51 that opens toward the movable lid 50 at the end of the tray main body 20 in the tray pulling direction, that is, at the junction end with the movable lid 50. The joining convex part 52 with which the cover body 50 was equipped is inserted.

  The joint recess 51 has a pair of support portions 53, 53 formed at an interval in the tray width direction of the tray main body 20 at the end in the tray pull-out direction. It is formed in a rectangular cutout shape that opens to the movable lid 50 side and the body thickness side.

  Further, the joint recess 51 is formed such that the distance between the inner side surfaces facing each other in the left-right direction is wider than the width in the left-right direction of the joint convex portion 52, whereby the inner side surface of the joint concave portion 51 and the outer surface of the joint convex portion are formed. Between them, gaps 62, 62 for position adjustment are formed.

  The gaps 62 and 62 for position adjustment are determined based on the mounting tolerance of the printed wiring board D with respect to the electrical equipment casing C, the mounting tolerance of the tray-type card connector 10 with respect to the printed wiring board D, and the like. .

  Both support portions 53, 53 are formed to be thicker than the plate thickness of other portions of the tray body 20, and when the card tray 11 is inserted into the housing 13, the support portions 53, 53 are on the tray insertion direction side. The end surface is abutted against the end surface of the housing 13.

  Also, in this joint recess 51, a rod-like joint member 54, which is supported at both ends by both support portions 53, 53, is disposed on the side in the tray pulling direction so as to be bridged between the mutually facing inner side surfaces of the joint recess 51. The joining member 54 is inserted into an insertion hole 55 formed in the joining convex portion 52.

  As shown in FIG. 6, the movable lid 50 is formed of an elastic material such as an insulating synthetic resin or a rubber material, and includes a joint convex portion 52 inserted into the joint concave portion 51, and a drawer of the joint convex portion 52. A front edge lid portion 56 disposed at the direction side end portion is integrally provided.

  The joint convex portion 52 is formed in a rectangular parallelepiped shape having the same thickness as or slightly thinner than the support portions 53, 53, and a reduced thickness insertion portion 52a having a thickness smaller than that of the other portion is formed at the end in the tray insertion direction. Has been.

  The reduced thickness insertion portion 52 a is formed to be slightly thinner than the tray main body 20, and is fitted into the opening of the tray insertion portion 12 when the card tray 11 is inserted into the housing 13.

  Further, the joining convex portion 52 is provided with insertion holes 55 opened at both end surfaces in the tray width direction, and the joining member 54 is inserted into the insertion holes 55.

  As shown in FIG. 7, the insertion hole 55 is formed larger than the outer diameter of the joining member 54, so that the vertical adjustment for position adjustment is performed between the inner side surface of the insertion hole 55 and the outer side surface of the joining member 54. Clearances 63, 63 and a clearance 64 in the front-rear direction are formed.

  By forming the gaps 62, 63, 64 for position adjustment in this way, the movable lid 50 is joined to the tray body 20 so as to be movable forward and backward, left and right, and up and down to form a floating structure.

  In addition, the movable lid 50 forms the insertion hole 55 in the shape of a long hole that is long in the tray insertion / removal direction, so that the normal position shown in FIG. The position inserted to the far side and the predetermined drawing position shown in FIG. 8B, that is, the position where the joining member 54 supported by the tray main body 20 is stopped against the inner edge 55a of the end of the insertion hole 55 in the tray insertion direction. You can slide between the two.

  Further, at a predetermined drawing position, that is, at a position where the inner edge 55a of the insertion hole 55 at the tray insertion direction end is abutted against the joining member 54 supported by the tray body 20, the end of the joining member 54 and the insertion hole 55 in the tray insertion direction When the force in the tray pulling direction acts on the movable lid 50, the inner edge 55a of the insertion portion 55 presses the joining member 54 toward the tray pulling direction. Thereby, the force in the tray pulling direction acting on the movable lid 50 is transmitted to the tray body 20 via the joining member 54.

  Accordingly, when the movable lid 50 is picked up by two fingers and a pulling force exceeding a certain level, that is, a force exceeding the holding force for the tray main body 20 and the housing 13, is applied, the retaining pieces 24, 24 are elastically deformed. The holding force is released, the tray body 20 can be pulled out from the tray insertion portion 12, and the card tray 11 can be easily pulled out from the housing 13 and the electronic device casing C without using a push pin or the like. ing.

  The front edge lid portion 56 is disposed on the side of the tray-drawing direction of the horizontal beam portion 57 and the elongated horizontal plate-like beam portion 57 extending in the tray width direction formed integrally with the end portion of the joint convex portion 52 in the drawing direction. When the tray-type card connector 10 is attached to an electronic device, the surface of the lid main body 58 in the tray pull-out direction passes through an exposure hole 59 formed in the electronic device casing C. It is exposed on the outer surface of the housing.

  The lid main body 58 is formed to be larger than the end surface of the horizontal beam portion 57 on the tray pulling direction side, and has a shape in which one side is integrally supported on the end surface of the horizontal beam portion 57 on the tray pulling direction side, Is formed.

  Further, both side portions of the front edge lid portion 56, that is, both end portions of the horizontal beam portion 57 on the tray insertion direction side of the lid body 58 are engaged with inner edges of the exposure holes 59 formed in the electronic device casing C. The locking member 61 is integrally or integrally provided to prevent the front edge lid portion 56 from being pulled out by its own weight or the like.

  The holding force due to the engagement between the locking member 61 and the inner edge of the exposure hole 59 is smaller than the holding force due to the engagement between the retaining piece 24 and the tray body 20.

  The locking member 61 is integrally provided with a protruding portion whose outer end bulges in an arc shape, and this protruding portion is disposed so as to protrude outward from the outer edge of the lid main body 58.

  The housing 13 includes a mold case 31 molded with an insulating synthetic resin, and a shield cover 32 incorporated so as to cover the upper surface and side surfaces of the mold case 31. The tray insertion portion 12 is formed on the upper surface of the mold case 31. The upper surface of the mold case 31 is formed in a concave shape, and the upper surface of the mold case 31 is covered with a shield cover 32.

  In the mold case 31, contacts 14, 14,... Are integrated into the mold case 31 by insert molding, and a signal terminal a1 disposed on one side of the memory card A on the back side of the tray insertion portion 12 in the tray insertion direction. , A1 ... are provided in a parallel arrangement spaced apart in the connector width direction.

  Reference numeral 33 in the figure denotes a lateral avoidance window formed in a shape that is long in the tray width direction and penetrates in the bottom plate thickness direction on the back side of the tray insertion portion 12 in the tray insertion direction.

  On the other hand, the shield cover 32 is formed by punching and bending a conductive metal plate material, and has a flat top plate portion 35 and a shape in which both side portions of the top plate portion 35 are bent toward the mold case 31 side. Side plate portions 36 and 36 are provided.

  On both sides of the top plate portion 35, retaining pieces 24, 24 are formed by cutting and bending, and the shield cover 32 is assembled into the mold case 31 so that both the retaining portions 24, 24 are attached to the tray insertion portion 12. It is arranged on both sides.

  The retaining piece 24 is cut into a shape that is elongated in the tray insertion / removal direction, leaving the crease portion 24b, and is bent into the housing 13 from the crease portion 24b. The tray insertion direction is based on the crease portion 24b. The back side can be elastically deformed in the connector width direction.

  Further, the retaining piece 24 is formed with an arcuate locking projection 24a that protrudes inward by bending, and a predetermined insertion position when the card tray 11 is inserted into the tray insertion portion 12 of the housing 13 is formed. , The engagement protrusion 24a engages with the engagement recess 25 of the tray body 20, thereby restricting the movement of the tray body 20 in the tray insertion / removal direction with respect to the housing 13, thereby causing an impact due to dropping of the electronic device or the like. However, the card tray 11 is prevented from coming out of the housing 13.

  The contacts 14, 14... Are formed by punching and bending an electrically conductive metal plate material having elasticity, a fixed piece portion 40 fixed to the mold case 31, and a card tray 11 insertion / extraction direction in the fixed piece portion 40. And an elastic contact piece 41 supported toward the surface.

  Both ends of the fixing piece 40 are integrally incorporated into the bottom of the mold case 31 by insert molding, and are fixed to an arrangement spanning between inner edge surfaces facing each other in the tray insertion direction of the lateral avoidance window 33. ing.

  Further, the back contact 14 is integrally formed with a connection piece piece 42 having a shape extending in the tray insertion direction in a continuous arrangement with the fixed piece 40, and the tip of the connection terminal piece 42 is the bottom surface of the housing 13. And is fixed to the connection pattern formed on the printed wiring board by soldering.

  The elastic contact piece 41 is formed in a shape inclined from the edge of the fixed piece 40 protruding from the inner edge of the lateral avoidance window 33 toward the back side of the connector insertion direction and toward the shield cover 32, and has an arc shape at the tip thereof. The contact portion 41a is formed.

  The tray-type card connector 10 configured as described above is fixed to the printed wiring board D, and the state of the printed wiring board D is attached to the electronic device casing C, so that the exposed holes formed in the electronic device casing C are exposed. The front edge lid portion 56 is exposed to the outside surface of the housing through 59.

  The exposure hole 59 is provided with a concave stepped portion 70 at the outer edge of the housing. The lid main body 58 of the card tray 11 is fitted into the stepped portion 70, and the lid main body 58 is attached to the electronic device housing C at a normal position. It is exposed on substantially the same plane as the outer surface.

  At the time of this mounting, the positional relationship between the exposure hole 59 formed in the electronic device casing C and the front edge lid portion 56 is determined by the mounting tolerance of the printed wiring board D with respect to the electronic device casing C and the tray type card with respect to the printed wiring board D. Both mounting tolerances of the connector 10 are affected.

  However, in the tray-type card connector 10 according to the present invention, the movable lid 50 is joined to the tray main body 20 in a state in which it can move back and forth, left and right, and up and down, that is, in a floating state. A shift between the design attachment position of the edge lid portion 56 and the actual attachment position can be absorbed, and the alignment can be easily performed.

  For example, in the state where the position of the tray-type card connector 10 relative to the position of the exposure hole 59 is shifted to the left relative to the normal state shown in FIG. 9A, as shown in FIG. When the movable lid 50 moves to the right relative to the main body 20, the shift is absorbed by the position adjustment gaps 62 and 62, and the front edge lid portion 56 is suitably positioned with respect to the exposure hole 59. It is like that.

  Further, when the position of the tray-type card connector 10 relative to the position of the exposure hole 59 is relatively shifted to the rear side and the upper side with respect to the normal state shown in FIG. 10A, as shown in FIG. Further, when the movable lid 50 moves relative to the tray body 20 to the front side and the lower side, the deviation is absorbed by the gaps 63 and 64 for position adjustment, and the front edge lid with respect to the exposure hole 59. The part 56 is suitably positioned.

  In the above-described embodiment, an example in which the insertion hole 55 is formed in a long hole shape in the tray insertion direction and the movable lid can be pulled out from the tray main body has been described. However, as shown in FIG. 55 may be formed in a shape that is slightly larger than the outer diameter of the joining member 54.

  The joining structure of the movable lid to the tray body may be any structure that can join the movable lid to the tray body so as to be movable in the front / rear, left / right and / or up / down directions without being limited to the above-described embodiments.

A Memory card 10 Tray-type card connector 11 Card tray 12 Tray insertion part 13 Housing 14 Contact 20 Tray body 21 Front edge cover part 56
22 card accommodating portion 24 retaining piece 25 engaging recess 26 reduced width recess 27 wide recess 28 stepped portion 31 mold case 32 shield cover 33 avoidance window 35 top plate portion 36 side plate portion 40 fixed piece portion 41 elastic contact piece portion 42 connection terminal One part 50 Movable lid 51 Joint concave part 52 Joint convex part 53 Support part 54 Joint member 55 Insertion hole 56 Front edge lid part 57 Horizontal beam part 58 Lid main body 59 Exposed hole 61 Locking member 70 Step part 71 Claw introduction part

Claims (3)

A card tray for storing a memory card, a housing having a tray insertion portion into which the card tray is inserted, and a plurality of contacts protruding into the tray insertion portion and contacting signal terminals of the memory card accommodated in the card tray In a tray-type card connector comprising:
The card tray is disposed on the side of the tray main body in which the memory card is stored and the tray main body is pulled out, and is attached to the electronic device casing through an exposure hole formed in the casing. A movable lid having a front edge lid exposed on the side surface,
A tray-type card connector, wherein the movable lid is joined to the tray body so as to be movable in the front-rear, left-right, and / or up-down directions.   The card tray is provided with a joint recess that opens toward the other side at one joint end of the tray body or the movable body, and a convex part that is inserted into the joint recess at the other joint end. The tray-type card connector according to claim 1, wherein a gap for position adjustment is formed between an inner surface of the joint recess and an outer surface of the protrusion.   The card tray has a rod-shaped bonding member supported by either the bonding concave portion or the bonding convex portion, and an insertion hole into which the bonding member is inserted, and the inner surface of the insertion hole and the bonding The tray-type card connector according to claim 2, wherein a gap for position adjustment is formed between the outer surface of the member.

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