KR20110058689A - Connector for card - Google Patents

Abstract

PURPOSE: A connector for a card is provided to prevent the deformation of a housing due to a re-flow heat. CONSTITUTION: A connector for a card comprises a housing(2) and a cover(3). The housing has sidewall parts(5,6). The sidewall part is formed along the insertion direction of the card. The cover is inserted to the housing from the card insertion direction. An engagement portion(32) is formed on the sidewall part. The engagement portion prevents the deformation of the housing. The engagement portion hangs on to the cover by being inserted to the cover.

Description

Connector for Cards {CONNECTOR FOR CARD}

The present invention relates to a card connector, and more particularly, to a card connector corresponding to a small card such as an SD card.

In general, in a card connector, a resinous housing is used in order to electrically separate a plurality of terminals and arrange them. In recent years, with the miniaturization of cards, miniaturization of card connectors has been demanded. The card connector corresponding to such a small card is mounted on the circuit board by soldering, but there is a problem that the housing is easily deformed by the reflow heat.

Background Art Conventionally, it is known to suppress deformation of a housing due to reflow heat as a card connector corresponding to a small card (see Patent Document 1, for example). The card connector is assembled by engaging and securing a locking piece extending downward from the metal cover to the locking hole formed in the upper surface of the resin housing. The housing has a U-shape when viewed from an upper surface of which a pair of side wall portions extends forward from an inner wall portion holding a plurality of terminals, and a card insertion space is formed between the pair of side wall portions.

The cover is provided with a plurality of restricting pieces for restricting the deformation of the pair of side wall portions in accordance with the position of the tip side of the pair of side wall portions. The card connector restrains deformation of the housing by regulating the tip side of the pair of side wall portions susceptible to the reflow heat by the restriction piece formed on the cover. This configuration prevents the pair of side wall portions from falling down toward the insertion space of the card, thereby preventing the card from being inserted into or removed from the card connector.

Japanese Laid-Open Patent Publication 2003-331975

However, in the conventional card connector as described above, when attaching the cover to the housing, it is necessary to align the restricting piece of the cover with respect to the engaging hole of the housing and the pair of side walls of the housing, respectively. There existed a problem that assembly property was bad.

This invention is made | formed in view of such a situation, Comprising: It aims at providing the card connector which is excellent in assembly property while suppressing the deformation | transformation of the housing by reflow heat.

The card connector of the present invention includes a housing having a side wall portion formed along the insertion direction of the card, and a cover attached to the housing by inserting the housing from the direction along the insertion direction of the card, wherein the side wall portion is provided. An engaging portion is formed in the cover by hooking the cover from a direction along the insertion direction of the card to restrict the deformation of the housing.

According to this configuration, by engaging the cover and the engaging portion formed in the side wall portion, deformation of the housing due to reflow heat during soldering of the card connector is suppressed. In particular, when the housing is formed in a U shape when viewed from an upper surface of the pair of side wall portions extending forward from the inner wall portion, deformation of the side wall portion susceptible to the influence of reflow heat can be suppressed. In addition, since the cover is engaged with the engaging portion by fitting the cover from the direction along the insertion direction with respect to the housing, high positioning is unnecessary at the time of mounting the cover to the housing. Therefore, the deformation of the housing due to the reflow heat can be suppressed, and the assembly of the card connector can be improved.

In the card connector, the cover is provided with a cutout portion cut out from the front end to the rear side along the insertion direction of the card, and the engaging portion protrudes outward from the outer surface of the side wall portion. And a protruding portion fitted into the notch portion, and a restricting portion which is formed in a gap between the protruding end portion of the protruding portion and the outer surface of the side wall portion so as to interpose the cover.

According to this configuration, the projection is fitted to the notch by inserting the cover from the direction along the insertion direction with respect to the housing, and the cover is interposed in the gap formed between the outer surface of the side wall and the restricting portion. The housing is reinforced by a cover interposed between the outer surface of the side wall portion and the restricting portion, so that deformation of the housing due to reflow heat is regulated. In addition, since the engagement area by the engagement portion can be increased along the insertion direction of the card, it is possible to increase the strength of the housing without increasing the size of the card connector.

The present invention is also characterized in that in the card connector, the notch portion is formed so as to extend from the portion in the middle of the extension direction toward the front end side.

According to this structure, when fitting a cover from the direction along the insertion direction with respect to a housing, it can make it easy to fit a protrusion part from the front end side of a notch part.

The present invention is also characterized in that in the card connector, the protruding portion has a crush rib that is deformed by fitting into the notch portion.

According to this configuration, the crush rib is deformed by inserting the protrusion into the notch, thereby suppressing the rattling in the vertical direction.

In the card connector, a guide groove for guiding the card in the insertion direction is formed on an inner surface of the card insertion space side of the side wall portion, and the engaging portion is formed on the outer surface of the side wall portion. It is characterized in that formed in the front and back relationship with respect to the guide groove.

According to this configuration, by forming the engaging portion in the front and back relationship with respect to the guide groove, the connector for the card can be made thinner as compared with the configuration in which the engaging portion is formed at a position separated from the guide groove in the thickness direction of the card.

The present invention is also characterized in that, in the card connector, the engaging portion is formed at an insertion opening side of the side wall portion.

According to this structure, deformation of the insertion opening side of the housing which is susceptible to the influence of reflow heat can be suppressed.

In addition, the present invention, in the card connector, after the insertion relative to the housing, by restricting the movement of the cover in the opposite side to the insertion direction, prevents the cover from falling out of the housing It is characterized by having a part.

According to this configuration, it is possible to prevent the cover from coming off the housing after the cover is fitted in the housing.

In addition, in the card connector, the cover is formed so as to surround an outer surface and a lower surface of the side wall portion along the insertion direction of the card, the upper plate portion covering the upper surface of the housing and the upper plate portion. It is characterized by having a fence portion.

According to this configuration, when the cover is fitted to the housing, the upper plate portion and the fence portion can be guided to the housing.

The present invention is also characterized in that in the card connector, the engaging portion extends along the insertion direction of the card.

According to this structure, the engagement area | region of a fastening part and a cover can be widened, without making a card connector large.

According to the present invention, an object of the present invention is to provide a card connector with good assembly property while suppressing deformation of the housing due to reflow heat.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of the card connector which concerns on this invention, and is a perspective view of a card connector.
Fig. 2 is a diagram showing an embodiment of a card connector according to the present invention, which is an exploded perspective view of the card connector viewed from the back side.
It is a figure which shows embodiment of the card connector which concerns on this invention, and is a figure which shows the middle of the insertion of the cover with respect to a housing.
It is a figure which shows embodiment of the card connector which concerns on this invention, and is explanatory drawing of the deformation prevention structure of a housing.
Fig. 5 is a diagram showing an embodiment of a card connector according to the present invention, and is an explanatory view of assembling the card connector.
6 is a view showing an embodiment of a card connector according to the present invention, which is a plan view of a card.

DETAILED DESCRIPTION OF THE INVENTION

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail with reference to an accompanying drawing. In addition, below, the case where the present invention is applied to a reverse type card connector which is inserted with the card pad facing upward is inserted. However, the application object of the card connector which concerns on this embodiment is not limited to this, It can change suitably.

First, before describing the card connector which concerns on embodiment of this invention, the card used as a mounting object is demonstrated. 6 is a plan view of a card according to an embodiment of the present invention, where (a) is a surface view and (b) is a rear view.

As shown in Figs. 6A and 6B, the card 61 is a so-called SD (Secure Digital) memory card used as a storage medium, and is formed in a substantially rectangular shape when viewed from the top. . At one corner of the card 61, an inclined surface 62 cut off and inclined at about 45 degrees is formed. The inclined surface 62 is used to identify the insertion direction of the card 61, so that the side on which the inclined surface 62 is formed becomes the front end side in the insertion direction, and the opposite side is the rear end side in the insertion direction. Becomes Only when this inclined surface 62 is inserted from the front end side on which the inclined surface 62 is inserted, the card 61 is attached to the card connector 1.

On the front end side of the card 61, a plurality of groove portions 64 are formed by a plurality of partitions 63 extending in the insertion direction. The groove portion 64 is provided with a plurality of pads 65 in contact with the plurality of connection terminals 11 of the card connector 1. Moreover, the notch part 66 latched and fixed to the slide member 14 mentioned later is formed in one side surface of the card 61. The card 61 comprised in this way is attached to the connector for cards 1 in the state which the back surface in which the some pad 65 was formed faced upward.

Next, with reference to FIG. 1 and FIG. 2, the whole structure of the card connector is demonstrated. 1 is a perspective view of a card connector according to an embodiment of the present invention. 2 is an exploded perspective view of the card connector according to the embodiment of the present invention as seen from the back side.

As shown in FIG. 1 and FIG. 2, the card connector 1 according to the present embodiment includes a housing 2 made of synthetic resin, and a metal cover 3 attached to the housing 2. The housing 2 and the cover 3 are combined to form a box-shaped body having an insertion opening 4. The housing 2 is formed by the upper wall portion 7 positioned at approximately the rear end of the pair of side wall portions 5 and 6 facing each other, with the approximately entire front portion of the upper surface and the lower surface of the upper portion of the insertion opening 4 being open. The insertion space of the card 61 is formed. The card connector 1 inserts the cover 3 from the rear side with respect to the housing 2, so that the card 61 is opened from the bottom along the side wall portions 5 and 6 in the opened lower surface of the housing 2. The bottom wall part supporting () is formed.

In the substantially center part of the upper wall part 7 of the housing | casing 2, the some terminal 11 is formed. Each connection terminal 11 formed in the upper wall part 7 extends toward the inner wall part 8 from the center part of the upper wall part 7. In addition, each connection terminal 11 is connected to the some external terminal 12 formed in the inner wall part 8 with the electrode pattern embedded in the housing 2 interposed. Each external terminal 12 formed in the inner wall portion 8 extends from the inner wall portion 8 toward the outside.

In one side wall portion 5 of the housing 2, an insertion detection switch portion 13 of the card 61 is formed. The switch part 13 is supported so that contact fixing is possible with respect to the fixed contact provided in the upper part, and is elastically supported with respect to the fixed contact by the winding spring in the separation direction. When the switch part 13 is pressed against the elastic force of the winding spring by insertion of the card 61, it contacts with a fixed contact, and detects insertion of the card 61. As shown in FIG.

The other side wall portion 6 facing the one side wall portion 5 of the housing 2 is stretched in accordance with sliding of the slide member 14 and the slide member 14 which are slidable along the side wall portion 6. A coil-shaped discharge spring 15 is formed. One end of the discharge spring 15 abuts against the inner wall portion 8, and the other end abuts the slide member 14, and the slide spring 14 is elastically supported in the discharge direction. The slide member 14 is comprised so that sliding to the insertion and discharge | release direction is possible in the state elastically supported by the discharge | emission spring 15. As shown in FIG.

On the rear end side of the slide member 14, the inclined convex part 21 which protrudes toward the center of the housing | casing 2 is formed. The inclined convex part 21 has the inclined surface which narrows the width direction of the insertion space toward the rear end of the slide member 14, and this inclined surface is inclined at about 45 degrees so as to abut on the inclined surface 62 of the card 61. Since the card 61 is guided to the mounting position only at the time of positive insertion contacting the inclined surface 62 of the card 61 by the inclined surface of the inclined convex portion 21, the misalignment of the card 61 is prevented. Is prevented.

The heart cam groove which is not shown in figure is formed in the front end side upper surface of the slide member 14, The position of the slide member 14 is prescribed | regulated by this heart cam groove and the latch pin 22 formed in the front end side of the side wall part 6. As shown in FIG. do. The latch pin 22 extends along the side wall part 6, and both ends are bent at substantially right angles toward the bottom. One end of the latch pin 22 is supported so as to be rotatable on the front end side of the side wall 6, and the other end is slidably moved on the heart cam groove of the slide member 14.

The heart cam groove has a plurality of steps and inclinations and is formed in a heart-shaped annular shape when viewed from the top, and slides the other end of the latch pin 22 in one direction in accordance with the sliding of the slide member 14. When the slide member 14 is pushed into the mounting position near the inner wall portion 8, the other end of the latch pin 22 is caught by the engaging portion of the heart cam groove, and the slide member 14 is caused by the elasticity of the discharge spring 15. Return is regulated. When the slide member 14 is pushed further in this state, the latching state of the latch pin 22 and the heart cam groove is released, and the slide member 14 is returned by the elasticity of the discharge spring 15. Thus, the latch pin 22 and the heart cam groove have the holding | maintenance function in the mounting position of the slide member 14. As shown in FIG.

In addition, the slide member 14 is provided with a metallic leaf spring 23 extending in the insertion direction, and is fixed to the notch portion 66 of the inserted card 61 on the plate surface of the leaf spring 23. The locking convex part 24 is formed. The notch part 66 of the card 61 is caught by this latching convex part 24, and the slide member 14 slides integrally with the card 61. As shown in FIG.

On the inner side surfaces of the side walls 5 and 6 of the housing 2, guide grooves 31 for guiding the insertion of the card 61 at the front end are formed. Moreover, the engaging part 32 is formed in the outer side of the side wall part 5, 6 of the housing | casing 2 with respect to each guide groove | channel 31 in the front-end part. The engagement part 32 is formed so that it may be engaged with the front end side of the cover 3 side plate part 36, and mainly engages the front end side of the side wall parts 5 and 6 by engaging with the cover 3. Reinforce. In addition, the detail of the engagement part 32 is mentioned later.

The cover 3 includes an upper plate portion 34 covering the upper surface of the housing 2, and a fence portion 35 bent to cover the outer surface and the lower surface of the side wall portions 5 and 6 from both side ends of the upper plate portion 34. Have The cover 3 is attached to the housing 2 by pushing the upper plate portion 34 and the fence portion 35 along the housing 2 from the rear side. That is, the upper plate portion 34 and the fence portion 35 function as guides when the cover 3 is inserted into the housing 2.

The pin presser 41 which presses the latch pin 22 is formed in one side of the upper board part 34. The pin presser 41 is a one-side supported spring cut out to the lower plate portion 37 side, presses the middle portion of the latch pin 22 downward, and presses the other end of the latch pin 22 to the heart cam groove. At approximately half of the insertion port 4 side of the upper plate portion 34, a braking piece 42 for preventing the card 61 from popping out is formed. The braking piece 42 is a one-side support spring, which is slightly cut downward, and is in contact with the back surface of the card 61 to suppress protruding upon ejection of the card 61.

The fence part 35 is comprised from the side board part 36 which covers the outer surface of the side wall parts 5 and 6, and the lower board part 37 which forms the bottom wall part of the card connector 1. As shown in FIG. In the side plate part 36, the notch part 45 cut out from the front end toward the back side is formed. The notch 45 is engaged with the engaging portion 32 by inserting the cover 3 from the rear side with respect to the housing 2. Thus, the front end side of the side wall parts 5 and 6 is engaged with the cover 3, so that the side wall parts 5 and 6 which are susceptible to the influence of the reflow heat at the time of soldering of the card connector 1 are used. Strain is suppressed. In addition, the notch part 45 is mentioned later in detail.

On the rear end side of the side plate portion 36, a fall prevention portion 46 which prevents the cover 3 from coming out of the housing 2 is formed. The fall prevention part 46 is a one-side support spring extended toward the back side from the side plate part 36, and the tip end part is bent inward and is formed. The fall prevention part 46 bends outward from the side wall parts 5 and 6 at the time of the movement to the insertion direction of the cover 3 with respect to the housing 2, and the attachment of the cover 3 with respect to the housing 2 is carried out. Allow.

The fall prevention part 46 returns to the original position from the outside, when the cover 3 is attached to the housing 2. At this time, the tip of the fall prevention part 46 abuts against the contact part 44 formed in the side wall parts 5 and 6, and restrict | limits the movement of the cover 3 to the opposite side to a fitting direction. In this way, when the cover 3 is inserted into the housing 2, the front end of the release preventing portion 46 and the contact portion 44 of the side wall portions 5 and 6 come into contact with each other to cover the housing 2. (3) is prevented from falling out.

Next, with reference to FIG. 3, the engaging part formed in the housing and the notch part formed in the cover are demonstrated in detail. Fig. 3 is a diagram showing the middle of fitting the cover to the housing. In addition, only one side wall part is demonstrated for convenience of description.

As shown in FIG. 3, the engaging portion 32 includes a protrusion 48 protruding laterally from the outer surface 51 of the side wall portion 5, and a protrusion 2 of the housing 2 from the protruding end of the protrusion 48. It has a restricting portion 49 that extends in the thickness direction, and is formed in a T shape when viewed from a cross section. In addition, the engaging part 32 is formed in front and back with respect to the guide groove 31 formed in the inner side surface of the side wall part 5. Therefore, the thickness of the housing 2 can be made thin compared with the structure where the engaging part 32 and the guide groove 31 were separated in the height direction, and it becomes possible to thin the connector 1 for cards (FIG. See (a) of 4).

The protruding length of the protruding portion 48 is determined by the side plate portion 36 of the cover 3 between the outer side surface 51 of the side wall portion 5 and the restricting portion 49 facing the outer side surface 51. It has a length to allow intrusion. The height dimension between the upper surface 53a and the lower surface 53b of the protruding portion 48 has a length approximately equal to the notch width of the notched portion 45 formed in the side plate portion 36. Therefore, the side plate part 36 has the upper surface 53a and the lower surface 53b of the protrusion part 48 as a guide surface, and the outer surface 51 of the side wall part 5 and the restricting surface 52a of the restricting part 49 are shown. , 52b) is infiltrated into the gaps 54a and 54b.

The restricting portion 49 has restricting surfaces 52a and 52b facing the outer surface 51 of the side wall portion 5, and the side plate portion 36 is provided between the restricting surfaces 52a and 52b and the outer surface 51. ), Gaps 54a and 54b are formed. The restricting portion 49 restricts the deformation of the side wall portion 5 by interposing the side plate portion 36 in the gaps 54a and 54b. The restricting surfaces 52a and 52b of the restricting portion 49 function when the side plate portion 36 intrudes into the gaps 54a and 54b and serves as a guide surface on the outer surface of the side plate portion 36. Thus, the side plate part 36 intrudes in the state which was positioned up-down-left-right by the engagement part 32 with respect to the clearance gap 54a, 54b. Further, the rear end side of the restricting portion 49 is chamfered so that the gaps 54a and 54b widen toward the rear side. The regulation part 49 makes it easy for the front end surface of the side plate part 36 to enter into the clearance gap 54a, 54b by chamfering.

The notch part 45 is formed in the substantially intermediate position of the height direction of the side plate part 36, and extends back from a front end surface. The front end side of the side plate part 36 is bifurcated by the notch part 45, and is interposed in the clearance gap 54a, 54b formed above and below the engaging part 32. As shown in FIG. In addition, in the notch part 45, the notch width between the opposing surfaces 55a and 55b facing the height direction is equal to the height dimension of the upper surface 53a and the lower surface 53b of the protrusion 48 as described above. Roughly matched. Therefore, the protrusion part 48 of the engagement part 32 is inserted in the notch part 45, making the opposing surface 55a, 55b of the notch part 45 into a guide surface. In addition, the front end side of the notch part 45 is chamfered so that the notch width may spread to the front side. The notch part 45 makes it easy to fit the protrusion part 48 of the engaging part 32 into the notch part 45 by chamfering.

In this way, in the engaging portion 32, the projection 48 is fitted into the notch portion 45, and the front end side of the side plate portion 36 penetrates into the gaps 54a and 54b, thereby providing the housing 2. And cover (3). In this case, the connector 1 for a card is designed so that the front end side of the engagement part 32 and the side plate part 36 may be engaged by inserting the cover 3 with respect to the housing 2 from the back side. . Therefore, alignment is unnecessary for the engagement of the engaging part 32 and the side plate part 36 front end side. In addition, by engaging the engaging portion 32 and the front end of the side plate portion 36, the deformation of the housing 2 due to the reflow heat during the soldering of the card connector 1 is suppressed. In addition, the size of the gaps 54a and 54b may have a margin such that the function of the connector 1 for a card does not interfere with the deformation of the housing 2.

In addition, in the said embodiment, in the notch part 45, the notch width | variety between the opposing surfaces 55a and 55b which opposes a height direction is the height dimension of the upper surface 53a and the lower surface 53b of the protrusion 48. Although the setting was approximately matched to the above, instead of this, the crush ribs may be projected to be formed on the lower surface 53b of the protruding portion 48, and may be set so as to become slightly tighter than the notch width of the notch portion 45 before assembling. In such a case, the crush rib is deformed by inserting the protrusion 48 into the notch 45, so that rattling in the vertical direction can be suppressed.

Hereinafter, the deformation preventing structure of the housing will be described with reference to FIG. 4. 4 is an explanatory view of a deformation preventing structure of a housing.

FIG. 4A shows an initial state in which the card connector 1 is not soldered. In this case, the protrusion part 48 of the engagement part 32 is fitted in the notch part 45 of the side plate part 36, and the front end side of the side plate part 36 is interposed in the clearance 54a, 54b. When the card connector 1 is soldered from this initial state, the deformation of the side wall portion 5 due to the reflow heat is regulated by the engagement of the front end of the protruding portion 48 and the side plate portion 36.

For example, as shown in FIG.4 (b), when the side wall part 5 curves inwardly which narrows the insertion space, the control surface 52a, 52b of the control part 49 is a side plate part ( The deformation toward the inner side of the side wall portion 5 in contact with the outer surface 56 of the 36 is restricted. On the other hand, when the side wall portion 5 is bent outwardly to widen the insertion space, the outer side surface 51 of the side wall portion 5 abuts against the inner surface 57 of the side plate portion 36, and the side wall portion ( 5) outward deformation is regulated.

As shown in FIG. 4C, when the side wall portion 5 is twisted downward, the upper side of the outer side surface 51 of the side wall portion 5 is the inner surface 57 of the side plate portion 36. ), The restricting surface 52b below the restricting portion 49 abuts against the lower side of the outer surface 56 of the side plate portion 36, and the deformation of the side wall portion 5 is restricted. On the other hand, when the side wall portion 5 is twisted upward, the regulating surface 52a on the upper side of the restricting portion 49 abuts on the upper side of the outer surface 56 of the side plate portion 36 and the side wall portion 5 is out of the side. The lower side of the side surface 51 abuts the lower side of the inner surface 57 of the side plate portion 36, so that the deformation of the side wall portion 5 is restricted.

And as shown in FIG.4 (d), when the side wall part 5 bends downward, the lower surface 53b of the protrusion part 48 will be matched with the opposing surface 55b below the notch part 45. As shown in FIG. In contact, the downward deformation of the side wall portion 5 is restricted. On the other hand, when the side wall portion 5 is bent upwards, the upper surface 53a of the protruding portion 48 abuts against the opposing surface 55a above the notch portion 45 and faces upward of the side wall portion 5. Deformation is regulated.

In this way, the engagement of the engaging portion 32 and the front side of the side plate portion 36 restricts the deformation in the vertical and horizontal directions and the torsional direction of the side wall portion 5. In particular, since the warp toward the inside of the side wall portion 5 is restricted, insertion and removal of the card 61 with respect to the card connector 1 is inhibited without narrowing the insertion space of the card 61. none. Moreover, since the curvature toward the downward side of the side wall part 5 is regulated, the cover 3 is prevented from lifting from the board | substrate 59 by lowering the front side of the side wall part 5, and the cover 3 Soldering is not impeded.

Referring to Fig. 5, the assembly of the card connector will be described. 5 is an explanatory diagram for assembling the connector for a card. In addition, in FIG. 5, (a) and (c) are explanatory drawing of the card connector seen from the upper surface, (b) and (d) are explanatory drawing of the card connector seen from the side surface.

First, as illustrated in FIGS. 5A and 5B, the upper plate portion 34, the side plate portion 36, and the lower plate portion 37 of the cover 3 are aligned with respect to the housing 2. Specifically, the upper plate portion 34 is positioned on the upper surface of the housing 2, the side plate portion 36 is positioned on the outer surface of the housing 2, and the lower plate portion 37 is positioned on the lower surface of the housing 2, respectively. Then, the cover 3 is inserted from the rear side of the housing 2, and the cover 3 is slid relative to the housing 2 with the upper plate portion 34, the side plate portion 36, and the lower plate portion 37 guided. . At this time, the cover 3 is slid in a state where the cover 3 is positioned.

Next, when the cover 3 is fitted to the front end side of the housing 2, the engagement of the front end side of the cover 3 and the engagement portion 32 starts. At this time, as shown in FIG.5 (c), (d), the front end side of the cover 3 is the restricting surface 52a, 52b of the restricting part 49, the upper surface 53a of the protrusion part 48, and the lower surface. Guided by 53b, it enters into the clearance gap 54a, 54b between the outer side surface 51 of the side wall part 5, and the control surface 52a, 52b of the control part 49. As shown in FIG. In addition, when the front end side of the cover 3 enters the gaps 54a and 54b, the protruding portion 48 guides the opposing surfaces 55a and 55b of the notch portion 45 and guides it into the notch portion 45. Is put in.

And when the cover 3 is fully inserted in the housing 2, the fall prevention part 46 of the rear end side of the cover 3 abuts against the contact part 44 of the housing 2, and the card connector ( 1) is assembled. In this case, the engaging portion 32 and the notched portion 45 are designed to be aligned by inserting the cover 3 relative to the housing 2. Therefore, at the time of assembling the cover 3 with respect to the housing 2, the alignment between the engagement portion 32 and the notch portion 45 becomes unnecessary, so that the assemblability of the card connector 1 can be improved. Will be.

As described above, according to the connector 1 for a card according to the present embodiment, the connector 1 for a card 1 is engaged with the engaging portion 32 formed on the side wall 5 and the front end of the cover 3. ), Deformation of the housing 2 due to reflow heat is suppressed. In addition, since the cover 3 is engaged with the engaging portion 32 by inserting the cover 3 from the rear side along the insertion direction with respect to the housing 2, the cover 3 is mounted with respect to the housing 2. At the time of mounting, high level alignment is unnecessary. Therefore, the deformation of the housing 2 due to the reflow heat can be suppressed and the assemblability of the card connector 1 can be improved.

In the above embodiment, the present invention has been described in the case where the present invention is applied to a reverse type card connector in which the back surface of the card pad is inserted facing upward, but is not limited to this configuration. You may apply this invention to the card connector of the normal type which inserts the back surface in which the pad of the card was formed facing down.

In addition, in the above embodiment, the case where the present invention is applied to the card connector corresponding to the SD card has been described. However, the present invention is not limited to this configuration. The present invention may be applied to a card connector that corresponds to a card other than an SD card.

In addition, in the above-mentioned embodiment, although the housing which opened in the whole lower surface was illustrated and demonstrated, it is not limited to this structure. The housing may have any configuration as long as the housing has a side wall portion extending in the insertion direction of the card.

In addition, in the said embodiment, although the engagement part was made into the structure which protrudes in T shape from the outer side surface of the side wall part at the cross section, it is not limited to this structure. The engagement portion may be any configuration as long as it is a configuration that is engaged with the cover by inserting the cover from the direction along the insertion direction of the card. For example, the engaging portion may protrude from the upper surface of the side wall portion, or may be configured to protrude in an L shape when viewed in cross section.

In addition, in the above-mentioned embodiment, although the engagement part was formed in the front-back relationship with the guide groove formed in the side wall part, it is not limited to this structure. For example, in the case of a large card connector, the engaging portion and the guide groove may be formed to be shifted in the height direction.

In addition, in said embodiment, although the engagement part was formed in the insertion opening side of the side wall part, it is not limited to this structure. For example, as long as the deformation amount of the side wall part is small, it is good also as a structure formed in the intermediate position in the extending direction of a side wall part.

Moreover, in embodiment mentioned above, although the fall prevention part was formed in the cover, it is not limited to this structure. The card connector should just be provided with the fall prevention part, for example, it is good also as a structure which forms a fall prevention part in a housing.

In addition, in the above embodiment, the engaging portion may be configured to extend along the insertion direction of the card and to be long. With such a configuration, the engagement area between the engagement portion and the cover can be widened without increasing the size of the card connector, and the strength of the housing can be increased.

In addition, embodiment disclosed this time is an illustration in all the points, and is not limited to this embodiment. The scope of the present invention is disclosed not only by the description of the above embodiments, but also by the claims, and includes all changes within the meaning and range equivalent to those of the claims.

As described above, the present invention has the effect of suppressing deformation of the housing due to reflow heat and improving the assemblability, and is particularly useful for card connectors corresponding to small cards such as SD cards. .

1 connector for card 2 housing
3: cover 4: insertion hole
5, 6: side wall portion 31: guide groove
32: engaging portion 34: the upper plate
35: fence portion 36: side plate portion
37: lower plate 44: abutting portion
45: notch 46: fall prevention unit
48: protrusion 49: regulatory portion
54a, 54b: gap 61: card

Claims (9)

A housing having sidewall portions formed along the insertion direction of the card;
And a cover mounted to the housing by inserting the card from the direction along the insertion direction of the card,
And the engaging portion for engaging the cover by inserting the cover from the direction along the insertion direction of the card, the side wall portion being provided to restrict the deformation of the housing. The method of claim 1,
The cover is formed with a cutout cut out from the front end to the rear along the insertion direction of the card,
The engaging portion protrudes outward from the outer surface of the side wall portion, and is a gap in which the cover can be interposed between the protrusion inserted into the notch portion and the protruding end portion of the protrusion, and the outer surface of the side wall portion. Card connector, characterized in that it has a regulating portion to form a. The method of claim 2,
And the notch portion is formed so as to extend from the portion in the middle of the extending direction toward the front end side. The method of claim 2,
The protruding portion has a crush rib that is deformed by being inserted into the notch portion. The method according to any one of claims 1 to 4,
Guide grooves for guiding the card in the insertion direction are formed on the inner surface of the card insertion space side of the side wall portion.
The engaging portion is a card connector, characterized in that formed on the outer surface of the side wall portion with respect to the guide groove. The method according to any one of claims 1 to 4,
The engaging portion is a card connector, characterized in that formed on the insertion port side of the side wall portion. The method according to any one of claims 1 to 4,
And a release preventing portion which prevents the cover from being pulled out of the housing by regulating the movement of the cover in a direction opposite to the insertion direction after being inserted into the housing. The method according to any one of claims 1 to 4,
And the cover has an upper plate portion covering the upper surface of the housing, and a fence portion which is continuous to the upper plate portion and surrounds the outer surface and the lower surface of the side wall portion in the insertion direction of the card. The method according to any one of claims 1 to 4,
And said engaging portion extends along the insertion direction of said card.

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