JP2009020805A - Adapter for memory card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To configure an adaptor for micromemory card so that a satisfactorily accurate contact-pressure is obtained between a terminal of the micro memory card and a micro-memory-card-corresponding terminal, and the contact-pressure between the terminal of the micro memory card and the micro-memory-card-corresponding terminal may be kept at the initial value even if the adaptor for micro memory card is left in a severe environmental condition. <P>SOLUTION: A lower case 50 and an upper case 60 are combined and ultrasonic-welded via an insert-molding module 11. The insert-molding module 11 is configured by insert-molding a plurality of terminal members 12 and a metallic cover 20. A gap 40 smaller than the thickness of the micro memory card 1 exists between the micro-memory-card-corresponding terminal 14 and the metallic cover 20. The mocro memory card 1 is housed in the adaptor by inserting its front edge side to the gap 40 adequately tightly. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an adapter for a memory card, and in particular, a memory card having the same external dimensions as a small-sized memory card and used in the same manner as a small-sized memory card with a micro memory card inserted and mounted. For adapters.

  A memory card refers to a card-shaped auxiliary recording device in which a semiconductor flash memory or the like is incorporated. Currently, as a memory card using a semiconductor flash memory, a standard size memory card to be mounted on a personal computer and a small size small memory card to be mounted on a mobile phone, a digital camera or the like are commercially available. Moreover, adapters for small memory cards are commercially available for effective use of small memory cards. The adapter for the small memory card is the same size as the standard size memory card, and can be loaded with a small memory card. Have been used.

  A conventional example of a small-sized memory card adapter is a combination of a lower cover and an upper cover, both of which are molded products made of synthetic resin, and has a memory card accommodating portion therein, and a plurality of internal portions. In this configuration, the terminal members are incorporated side by side.

  The small-sized memory card is inserted into the memory card housing portion of the memory card adapter, and the terminal on the lower end in the insertion direction is placed on and contacted with the terminal portion at the end of the terminal member. It is inserted into the memory card housing portion while being held down by the upper cover. The small memory card adapter is used by being mounted on a personal computer or the like in the same manner as a standard size memory card in a state where the small memory card is mounted in the memory card housing portion as described above.

  In recent years, miniaturization of portable devices has progressed, and along with this, micro memory cards smaller in size than the above-mentioned small memory cards are being commercialized. In order to make effective use of this micro memory card, specifically, it is desired to develop an adapter for a micro memory card so that the micro memory card can be attached to a small memory card connector provided in a portable device. Yes. The adapter for a micro memory card has an external dimension corresponding to a small memory card and has a micro memory card accommodating portion therein.

  Here, the small memory card has a length of about 30 mm, a width of about 20 mm, and a thickness of about 1.6 mm, and the micro memory card is smaller as will be described later. It is a size. The contact size of the micro memory card is also narrow.

  For this reason, the contact pressure between the terminal of the micro memory card and the terminal in the adapter for the micro memory card is lower than the contact pressure in the adapter for the small memory card. In order to maintain the connection stably, it is important to maintain the contact pressure when the micro memory card is mounted after that.

  Also, because the contact pressure between the micro memory card terminal and the terminal part in the micro memory card adapter is low, the micro memory card will come out of the micro memory card adapter when dropped, for example, when subjected to an impact. Since this can happen, countermeasures against this need to be taken.

  Therefore, an object of the present invention is to provide a memory card adapter made in view of the above points.

The present invention has a second memory card accommodating portion in which a second memory card having a size smaller than that of the first memory card is inserted and accommodated, and the second memory card is the second memory. A memory card adapter having the same outer dimensions as the first memory card, used in a state of being accommodated in a card accommodating portion,
It is a configuration having an insert molding module inside,
The insert molding module is
A plurality of terminal members arranged side by side;
A metal plate cover,
A part of the plurality of terminal members and a part of the metal plate cover are inserted and molded, and has a synthetic resin molding part;
The plurality of terminal members have first memory card corresponding terminals corresponding to the terminals of the first memory card in a portion protruding from the synthetic resin molded portion toward the tip of the memory card adapter. And a second memory card corresponding terminal corresponding to a terminal of the second memory card in a portion protruding in the direction of the second memory card accommodating part from the synthetic resin molded part,
The metal plate cover protrudes from the synthetic resin molded portion in the direction of the second memory card housing portion,
In addition, a gap for inserting the second memory card is formed between the second memory card corresponding terminal and the metal plate cover.

  According to the present invention, since it is an insert molding module, the gap between the second memory card compatible terminal and the metal plate cover is accurately determined, and the second memory card between the assembled memory card adapters. Variation of the contact pressure between the terminals when the is stored in the second memory card storage portion can be suppressed. In addition, since the member that presses the upper surface of the second memory card inserted into the gap between the second memory card compatible terminal and the metal plate cover is made of a metal plate, deformation such as warping even when heat is applied Does not cause. Therefore, even when the memory card adapter accommodated in the second memory card accommodating portion is placed in a harsh environment such as a high temperature, the second memory card terminal and the second memory card The contact pressure with the memory card corresponding terminal can be maintained at the contact pressure when the second memory card is accommodated in the second memory card accommodating portion. Therefore, it can be prevented that the contact pressure between the terminal of the second memory card and the terminal corresponding to the second memory card is lowered and the electrical connection becomes unstable.

  Next, an embodiment of the present invention will be described.

  FIG. 1 shows a micro memory card adapter 10 according to a first embodiment of the present invention together with the micro memory card 1 and a state where the adapter 10 is disassembled. X1-X2 is the width direction of the adapter 10 and the micro memory card 1, Y1-Y2 is the longitudinal direction, and Z1-Z2 is the thickness direction. Y1 is a direction in which the micro memory card 1 is inserted into the adapter 10 and a direction in which the adapter 10 is inserted into the slot of the electronic device. Z1 is the upper side and Z2 is the lower side.

  As shown in FIGS. 2 and 3, the adapter 10 has a configuration in which the lower case 50 and the upper case 60 are combined and ultrasonically welded with the insert molding module 11 interposed therebetween, as will be described later. It is not easily affected by the heat received from the outside, and can maintain the contact pressure to the terminals of the micro memory card 1 even when the micro memory card 1 is stored in a high temperature environment, and the mechanical strength. It has the characteristic that it can be increased. The adapter 10 has a length L10 of about 30 mm, a width W10 of about 20 mm, and a thickness T10 of about 1.6 mm, and has the same outer dimensions as a small memory card as the first memory card. FIG. 3 shows a state where the insert molding module 11 is placed on the lower case 50.

FIG. 5 is a sectional view taken along the line VV passing through the center of the empty adapter 10 of FIG. FIG. 6 is an enlarged view of the central portion in FIG. FIG. 7 is a cross-sectional view of the adapter 10 of FIG. 1 taken along the line VII-VII and viewed from the micro memory card insertion port side of the micro memory card housing portion. FIG. 8 is an enlarged cross-sectional view taken along the line VIII-VIII in FIG. 1 and shows a state in which the ground terminal 13G of the module 11 is in contact with the metal plate cover 20. FIG. 9 is an enlarged cross-sectional view taken along the line IX-IX in FIG. 1 and shows the locking portion 26 of the module 11.
[Micro memory card 1]
For convenience of explanation, first, the micro memory card 1 as the second memory card will be described.

  As shown in an enlarged view in FIG. 4, the micro memory card 1 has a length L1 of about 15 mm, a width W1 of about 12 mm, and a thickness T1 of 1.2 mm, which is smaller than the small memory card.

  The micro memory card 1 has an upper surface 3 and a lower surface 4, and a plurality of terminals 2 are arranged side by side in the X1-X2 direction on the Y1 side of the lower surface 4, and the rib portion 5 is on the side surface side on the X1 side. The rib portion 6 protrudes on the side surface side on the X2 side. The rib portion 5 and the rib portion 6 are formed such that the upper surface thereof is stepped by a dimension a with respect to the upper surface 3, and the lower surface is an extended surface of the lower surface 4. The rib portion 5 has missing portions 5a and 5b in the middle. The missing part 5a is a missing part on the Y1 side. The rib part 6 has a missing part similarly. On the Y2 side of the upper surface 3 of the micro memory card 2, convex portions 7 and 8 projecting to the X1 side and the X2 side are provided.

Next, the adapter 10 will be described.
[Insert molding module 11]
First, the insert molding module 11 will be described.

  FIG. 2B is a perspective view of the insert molding module 11. FIG. 10 is a perspective view showing the insert molding module 11 as viewed from below. FIG. 11 is an enlarged view of a part of FIG. FIG. 12A is a perspective view showing the insert molding module 11 in a state in which the metal plate cover 20 is omitted. FIG. 13 is an enlarged sectional view taken along line XIII-XIII in FIG. FIG. 14 is an enlarged view showing a portion on the Y1 side in a posture in which the insert molding module 11 is turned upside down.

  The insert molding module 11 has a configuration in which a plurality of terminal members 12 and a metal plate cover 20 are insert-molded. The plurality of terminal members 12 and the metal plate cover 20 are integrated by the synthetic resin molding portion 30. The plurality of terminal members 12 and the metal plate cover 20 are both arranged parallel to the XY plane and having different height positions. The module 11 is characterized by having a metal plate cover 20 in addition to the plurality of terminal members 12. The module 11 has a flat shape that fits between the lower case 50 and the upper case 60.

  The synthetic resin molding portion 30 is made of a heat-resistant resin, for example, a liquid crystal polymer, is substantially rectangular when viewed from the Z1 side, has a flat shape, and insert-molds a part of the metal plate cover 20. In consideration of the above, the projections 31 and 32 project in the Z2 direction on the X2 and X2 sides on the Y2 side of the upper surface. The synthetic resin molding part 30 is molded by inserting a part of the terminal member 12 and a part of the metal plate cover 20.

  The plurality of terminal members 12 are long in the Y1 and Y2 directions, are aligned in the X1 and X2 directions, and penetrate the synthetic resin molded portion 30 in the Y1 and Y2 directions. Terminals 13 protrude from the Y1 side of the synthetic resin molding portion 30 and are arranged in an arrangement corresponding to the terminals of the small memory card. The terminal 13 is a small memory card compatible terminal. Terminals 14 protrude from the Y2 side of the synthetic resin molding portion 30 and are arranged in an arrangement corresponding to the terminals 2 of the micro memory card 1. The terminal 14 is a micro memory card compatible terminal. Of the plurality of terminals 13 and 14, the X2 side terminals 13G and 14G are both ground terminals. The ground terminal 14G is bent obliquely in the Z1 direction.

  The metal plate cover 20 is made of stainless steel having a thickness of 0.1 mm, preferably 0.08 mm, and has a shape corresponding to the shape of the upper surface of the micro memory card 1. That is, as shown in FIG. 12B, the metal plate cover 20 includes a central flat plate-like main body portion 21 and step portions 22X1 and 22X2 in the Z2 direction on the X1 and X2 sides of the main body portion 21. The projecting portions 23X1 and 23X2 have projecting portions 23X1 and 23X2 projecting toward the X1 and X2 sides from the Z2 ends of the step portions 22X1 and 22X2, and arm portions 24X1 and 24X2 projecting in the Y1 direction from the projecting portions 23X1 and 23X2. The dimensions of the step portions 22X1 and 22X2 in the Z1 and Z2 directions are the same as the step size a of the micro memory card 1. As shown in FIGS. 12C and 12D, the arm portions 24X1 and 24X2 are formed with rib portions 25X1 and 25X2 that are long in the Y1 and Y2 directions so as to improve the strength. . In addition, the overhanging portion 23X1 is formed with a slit and a locking portion 26 is formed. The locking part 26 is for locking the missing part 5a of the micro memory card 1, and is fixed on the Y2 side and extends in the Y1 direction and has a spring property in the Z1 and Z2 directions. It consists of a portion 26a and a convex portion 26b at the tip of the cantilever portion 26a.

  In the metal plate cover 20, the arm portions 24 </ b> X <b> 1 and 24 </ b> X <b> 2 on both sides are insert-molded on the convex step portions 31 and 32 of the synthetic resin molding portion 30, and are fixed to the synthetic resin molding portion 30. Also, it protrudes in the Y2 direction from the synthetic resin molding portion 30 at a height position biased to the Z1 side. Here, since the arm portions 24X1 and 24X2 are insert-molded in the synthetic resin molding portion 30, the strength of fixing the arm portions 24X1 and 24X2 to the synthetic resin molding portion 30 is that the arm portions 24X1 and 24X are the synthetic resin members. It is higher than the fixed strength of the structure when pressed into the formed slit.

  The rib portions 25X1 and 25X2 reinforce the arm portions 24X1 and 24X2, and the metal plate cover 20 is less likely to be deformed in the direction of warping with respect to the synthetic resin molded portion 30.

  As shown in FIG. 13, the main body portion 21 of the metal plate cover 20 is located above the micro memory card corresponding terminal 14, and there is a gap 40 between the micro memory card corresponding terminal 14 and the main body portion 21. is doing. The dimension A in the Z1-Z2 direction of the gap 40 is 0.9 mm, which is a value slightly smaller than the thickness T1 of the micro memory card 1, and the gap 40 is slightly narrower than the thickness T1 of the micro memory card 1. Here, insert molding is performed by injection-molding resin in a state where a plurality of terminal members 12 and a metal plate cover 20 are sandwiched between molding dies, and between the produced insert molding modules 11. There is almost no variation in the dimension A of the gap 40, and it is determined with high accuracy.

  As shown in FIG. 11, the ground terminal 14G is in contact with the lower surface of the projecting portion 23X2 of the metal plate cover 20, and the ground terminal 14G and the metal plate cover 20 are electrically connected. This is because the potential of the metal plate cover 20 is set to the ground level when the adapter 10 is used.

  As shown in FIG. 14, a rounded portion 13 a is formed at the tip of the terminal 13. This is because when the adapter 10 is inserted into the small memory card connector provided in the portable device, the terminal 13 is smoothly brought into contact with the terminal of the small memory card connector without being caught.

Further, since the metal plate cover 20 has a shape in which the X1 and X2 sides are bent into a crank shape, the strength against the direction of bowing in the direction in which the central portion is convex or concave along the Y1-Y2 line. Is expensive.
[Lower case 50]
FIG. 2C shows the lower case 50. The lower case 50 is a synthetic resin molded part and has a plate shape. A plurality of slits 51 are arranged on the Y1 side so as to correspond to the terminals of the small memory card. A concave portion 52 corresponding to the outline of the synthetic resin molding portion 30 of the module 11 is formed, and on the Y2 side from the concave portion 52, there is a plate-like portion 53 that forms the bottom plate portion of the micro memory card housing portion, In addition, on the X1 and X2 side of the plate-like portion 53, support portions 54X1 and 54X2 for supporting the outer side portions of the projecting portions 23X1 and 23X2 of the metal plate cover 20 are provided.
[Upper case 60]
FIG. 2A shows the upper case 60. The upper case 60 is a synthetic resin molded part, has a plate shape, and a concave portion (not shown) corresponding to the contour of the synthetic resin molded portion 30 of the insert molded module 11 is formed at the center of the lower surface. The Y2 end is open on the Y2 side from the center, and a notch opening 61 having a shape corresponding to the main body 21 of the metal plate cover 20 is formed. 62X1 and 62X2 are lateral arm portions, which are located on both sides of the notch opening 61.
[Adapter 10]
As shown in FIG. 3, the adapter 10 first places the insert molding module 11 on the lower case 50 with its position aligned, and then covers the upper case 60, so that the lower case 50 and the portion around the upper case 60 are superposed. Manufactured by sonic welding.

  In the insert molding module 11, the position of the synthetic resin molding portion 30 is determined by the recess 52 of the lower case 50 and the recess (not shown) of the upper case 60, and the insert molding module 11 is sandwiched between the lower case 50 and the upper case 60. Yes.

  The terminal 13 is exposed to the slit 51. The terminals 14 are aligned on the plate-like portion 53 of the lower case 50.

  As shown in FIG. 7, the projecting portions 23X1 and 23X2 of the metal plate cover 20 are respectively placed on the support portions 54X1 and 54X2 of the lower case 50, and the presser arm portions 62X1 and 54X1 of the support portion 54X1 and 54X2 and the upper case 60 are supported. It is sandwiched between 62X2 and fixed. The main body 21 of the metal plate cover 20 is fitted in the notch opening 61 of the upper case 60 to close the notch opening 61.

  A micro memory card accommodating portion 70 is formed between the plate-like portion 53 of the lower case 50 and the metal plate cover 20.

  Here, the lower case 50 and the upper case 60 sandwich the projecting portions 23X1 and 23X2 of the metal plate cover 20, and the metal plate cover 20 has a convex or concave central portion along the Y1-Y2 line. The micro memory card accommodating portion 70 has a higher mechanical strength than the conventional one because the shape has a high strength with respect to the direction of bowing in a certain direction. The adapter 10 is often subjected to a force in a direction of bowing in the direction in which the central portion is convex or concave along the Y1-Y2 line because of its shape. Strong against forces acting in the direction.

  As shown in FIGS. 6 and 7, a gap 40 between the micro memory card corresponding terminal 14 and the main body 21 has a dimension A in the Z1-Z2 direction that is slightly smaller than the thickness T1 of the micro memory card 1. Is present.

  The micro memory card corresponding terminal 14 is located in the upper surface of the plate-like portion 53 of the lower case 50 and is arranged in the micro memory card accommodating portion 70.

  As shown in FIGS. 6 and 8, the ground terminal 14 </ b> G is pressed against the lower surface of the protruding portion 23 </ b> X <b> 2 of the metal plate cover 20.

  As shown in FIG. 9, the locking portion 26 is positioned at the X1 side portion of the micro memory card housing portion 70, and the convex portion 26 b protrudes into the micro memory card housing portion 70.

  Referring to FIG. 1, reference numeral 71 denotes an entrance to the micro memory card housing portion 70, which has a shape in which the Z 2 side projects in the X 1 and X 2 directions, that is, a cross sectional shape along the X 1 -X 2 line of the micro memory card 1. Have a corresponding shape.

The dimension A of the gap 40 is determined by the insert molding module 11 and is not affected by the assembly work process of the adapter 10, for example, the welding process. Therefore, the dimension A of the gap 40 is accurately determined between the assembled adapters 10.
[Attaching the micro memory card 1 to the adapter 10]
Next, attachment of the micro memory card 1 to the adapter 10 will be described.
[Installation operation]
The operator holds the micro memory card 1 between the fingertips of the hand, and inserts the micro memory card 1 into the micro memory card accommodation unit 70 through the entrance 71 to the final position in the Y1 direction in the posture shown in FIG.

  As shown in FIG. 15, the micro memory card 1 occupies the micro memory card accommodating portion 70, and the Y2 side portion is located at the entrance 71 and closes the entrance 71. The micro memory card 1 is shown with a satin pattern.

Since the cross-sectional shape of the micro memory card 1 and the shape of the entrance 71 are vertically asymmetric, even when trying to insert the micro memory card 1 in a posture different from the above, the micro memory card 1 hits the ridge of the entrance 71 and enters the micro memory card accommodating portion 70. Insertion is restricted, and erroneous insertion is restricted.
[State when attached]
The portion on the Y1 side of the micro memory card 1 rides on the micro memory card corresponding terminal 14 and elastically bends the micro memory card corresponding terminal 14 in the Z2 direction as shown in FIG. Enter moderately tight. As a result, the portion on the Y1 side of the micro memory card 1 is brought into a state in which each terminal 2 is elastically pressed against the corresponding micro memory card corresponding terminal 14 so that each terminal 2 corresponds to the corresponding micro memory card corresponding terminal 14. Are both electrically connected to each other and elastically sandwiched between the main body 21 and the micro memory card corresponding terminal 14. Due to the elasticity of the micro memory card corresponding terminal 14, the micro memory card 1 is pushed up in the Z 1 direction, and the upper surface 3 is pressed against the lower surface of the main body 21 of the metal plate cover 20.

  Here, the metal plate cover 20 is configured to be insert-molded in the synthetic resin molding portion 30, and the position accuracy of the metal plate cover 20 with respect to the micro memory card corresponding terminal 14 is high. The contact pressure with the card corresponding terminal 14 is accurately determined.

  Here, since the metal plate cover 20 is protected by pressing the projecting portions 23X1 and 23X2 on both sides by the lateral arm portions 62X1 and 62X2 of the upper case 60, respectively, the metal plate cover 20 is further synthesized. Since the arm portions 24X1 and 24X2 connected to the resin molding portion 30 are reinforced by the rib portions 25X1 and 25X2, deformation such as warpage of the metal plate cover 20 during handling of the adapter 10 does not occur. This also determines the contact pressure between the terminal 2 and the micro memory card corresponding terminal 14 when the micro memory card 1 is attached to the adapter 10 with high accuracy.

  In addition, as shown in FIG. 17, the missing portion 5a of the micro memory card 1 reaches a location corresponding to the convex portion 26b of the locking portion 26, and the convex portion 26b is fitted into the missing portion 5a. 1 is locked by a locking portion 26.

Since the dimension A of the gap 40 is accurately determined between the assembled adapters 10, terminals when the micro memory card 1 is accommodated in the micro memory card accommodating portion 70 between the assembled memory card adapters. There is almost no variation in contact pressure between 2 and the micro memory card compatible terminal 14.
[State after wearing]
Here, when the upper surface 3 of the micro memory card 1 pushed up in the Z1 direction by the elastic force of the micro memory card corresponding terminal 14 is supported by the synthetic resin plate portion, the thickness of the synthetic resin plate portion is increased. As the thickness of the terminal 2 and the micro memory is deformed so that the plate portion made of the synthetic resin becomes convex upward when high heat is applied from the outside, the thickness may be reduced to about 0.1 mm. The contact pressure with the card corresponding terminal 14 is lowered. However, in the present embodiment, the metal plate cover 20 supports the top surface 3 of the micro memory card 1, and the metal plate cover 20 is insert-molded in the synthetic resin molding portion 30. Therefore, even when high heat is applied from the outside, deformation such as warpage is unlikely to occur. Therefore, even when the adapter 10 with the micro memory card 1 mounted is left on a dashboard of a car during the day, for example, the contact between the terminal 2 and the micro memory card compatible terminal 14 The pressure is maintained at the contact pressure when the micro memory card 1 is mounted, and the contact pressure does not decrease. Therefore, the electrical connection between the terminal 2 of the micro memory card 1 and the micro memory card corresponding terminal 14 is stably maintained.

  Here, since the metal plate cover 20 is protected by pressing the projecting portions 23X1 and 23X2 on both sides by the lateral arm portions 62X1 and 62X2 of the upper case 60, respectively, the metal plate cover 20 is further synthesized. Since the arm portions 24X1 and 24X2 connected to the resin molding portion 30 are reinforced by the rib portions 25X1 and 25X2, deformation such as warpage of the metal plate cover 20 during handling of the adapter 10 does not occur. Also by this, the contact pressure between the terminal 2 and the micro memory card corresponding terminal 14 is maintained at the contact pressure when the micro memory card 1 is mounted, and the contact pressure does not decrease. 2 and the micro memory card corresponding terminal 14 are stably maintained.

  In addition, as shown in FIG. 17, since the convex portion 26b is fitted into the missing portion 5a and the micro memory card 1 is locked by the locking portion 26, for example, the adapter 10 is accidentally dropped on the floor and shock is applied. Even when this occurs, the inconvenience that the micro memory card 1 is unnecessarily pulled out from the micro memory card accommodating portion 70 is less likely to occur.

  In addition, since the micro memory card housing portion 70 has higher mechanical strength than the conventional one, even when the operator inadvertently applies a force to warp the adapter 10 during handling of the adapter 10, The micro memory card accommodating portion 70 is not easily warped, so that the micro memory card 1 is not damaged.

The adapter 10 to which the micro memory card 1 is attached is used in the same manner as a small memory card and is attached to a connector provided in the device. The micro memory card 1 is electrically connected to the connector of the device via the terminal member 12 in a state where it is mounted on the device, and signals are exchanged with the device. Further, the metal plate cover 20 is connected to the ground of the device via the ground terminals 14G and 13G, and the potential of the metal plate cover 20 is set to the ground level.
[Removal of micro memory card 1 from adapter 10]
When the operator pinches the Y2 side end of the adapter 10 of the micro memory card 1 with the fingertip of the hand and pulls it strongly in the Y2 direction, the convex portion 26a is pushed up in the Z1 direction and pushed out from the missing portion 5a. The lock is released and the micro memory card 1 is removed from the adapter 10.

  FIG. 18 shows a micro memory card adapter 10A according to the second embodiment of the present invention. This adapter 10A has a configuration in which the metal plate member 80 shown in FIG. 19 is also provided on the lower case 50A side, and the micro memory card housing portion 70A is formed of the metal plate member 20 and the metal plate member 80. An insulating film is formed on the upper surface of the metal plate member 80 so as not to be electrically connected to the micro memory card corresponding terminal 14.

  The configuration of the present invention can also be applied to a small memory card adapter, which has the same external dimensions as a standard size memory card and to which a small memory card is applied.

It is a perspective view which shows the adapter for micro memory cards which becomes Example 1 of this invention with a micro memory card. It is a figure which decomposes | disassembles and shows the adapter for micro memory cards. It is a perspective view which shows the state in which the insert molding module was mounted on the lower case. It is a perspective view which expands and shows a micro memory card. FIG. 2 is a cross-sectional view of the adapter for a micro memory card along the line V-V in FIG. 1. FIG. 6 is an enlarged view showing a central portion in FIG. 5. FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 1 and viewed from the micro memory card insertion port side of the micro memory card housing portion. FIG. 3 is an enlarged cross-sectional view showing a state in which the ground terminal of the insert molding module is in contact with a metal plate cover in FIG. 1 along the line VIII-VIII. FIG. 2 is a cross-sectional view showing an engaging portion of the insert molding module in an enlarged manner along a line IX-IX in FIG. 1. It is a perspective view shown in the state which looked up at the insert molding module from the lower side. It is a figure which expands and shows a part in FIG. It is a figure which shows an insert molding module. FIG. 11 is an enlarged cross-sectional view taken along line XIII-XIII in FIG. 10. It is a figure which expands and shows the part by the side of Y1 in the attitude | position which reversed the front and back of the insert molding module. It is sectional drawing of the micro memory card of the state in which the micro memory card was accommodated in the micro memory card accommodating part. It is sectional drawing which expands and shows the center part in FIG. It is sectional drawing which expands and shows the state by which the micro memory card was latched by the latching | locking part. It is a perspective view which shows the adapter for micro memory cards which becomes Example 2 of this invention. It is a figure which shows the metal plate member which comprises a part of lower case in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Micro memory card adapter 2 Terminal 3 Upper surface 4 Lower surface 5, 6 Rib part 5a Missing part 10, 10A Micro memory card adapter 11 Insert molding module 12 Terminal member 13 Small memory card corresponding terminal 14 Micro memory card corresponding terminal 13G, 14G Ground terminal 20 Metal plate cover 21 Body portion 22X1, 22X2 Step portion 23X1, 23X2 Overhang portion 24X1, 24X2 Arm portion 25X1, 25X2 Rib portion 26 Locking portion 26a Cantilever portion 26b Convex portion 30 Synthetic resin molding portion 40 Gap 50 Lower case 52 Recessed part 53 Plate-like part 54X1, 54X2 Support part 60 Upper case 61 Notch opening 62X1, 62X2 Lateral arm part 70 Micro memory card accommodating part

Claims (6)

A second memory card accommodating portion into which a second memory card having a size smaller than the first memory card is inserted and accommodated, wherein the second memory card is the second memory card accommodating portion; A memory card adapter having the same outer dimensions as the first memory card, which is used in a state of being accommodated in the memory card,
It is a configuration having an insert molding module inside,
The insert molding module is
A plurality of terminal members arranged side by side;
A metal plate cover;
A part of the plurality of terminal members and a part of the metal plate cover are inserted and molded, and has a synthetic resin molding part;
The plurality of terminal members have first memory card corresponding terminals corresponding to the terminals of the first memory card in a portion protruding from the synthetic resin molded portion toward the tip of the memory card adapter. And a second memory card corresponding terminal corresponding to a terminal of the second memory card in a portion protruding in the direction of the second memory card accommodating part from the synthetic resin molded part,
The metal plate cover protrudes from the synthetic resin molded portion in the direction of the second memory card housing portion,
A memory card adapter having a structure in which a gap into which the second memory card is inserted is formed between the second memory card corresponding terminal and the metal plate cover. Having a combined upper case and lower case,
The metal plate cover is insert-molded in the synthetic resin molded portion at one end side in the longitudinal direction,
The upper case has a notch opening corresponding to the metal plate cover, and has side arms on both sides of the notch opening,
The metal plate cover is exposed to the cutout opening, and both side portions are sandwiched and fixed by both side portions of the lower case and the lateral arm portion of the upper case. Item 5. The memory card adapter according to Item 1. Having a combined upper case and lower case,
The metal plate cover is insert-molded in the synthetic resin molded portion at one end side in the longitudinal direction,
The upper case has a notch opening corresponding to the metal plate cover, and has side arms on both sides of the notch opening,
The metal plate cover has a flat plate-like main body portion at the center, step portions on both sides of the main body portion, and a protruding portion that protrudes outward from the end of the step portion,
In the metal plate cover, the main body portion is exposed to the notch opening, and the protruding portions on both sides are fixed by being sandwiched between both side portions of the lower case and the lateral arm portions of the upper case. The memory card adapter according to claim 1, wherein the memory card adapter is configured as described above.   4. The memory card adapter according to claim 2, wherein the metal plate cover has a rib portion in a portion that is insert-molded in the synthetic resin molding portion. 5. The plurality of terminal members arranged side by side in the insert molding module have a ground terminal member,
2. The memory card adapter according to claim 1, wherein a ground terminal arranged on a side of the second memory card housing portion of the ground terminal member is in contact with a lower surface of the metal plate cover. The metal plate cover of the insert molding module is:
A locking portion that protrudes into a part of the second memory card housing part and that latches the second memory card accommodated in the part so as not to come out of the second memory card housing part. The memory card adapter according to claim 1.

Images