JP2006178701A - Memory card - Google Patents

Memory card Download PDF

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Publication number
JP2006178701A
JP2006178701A JP2004370512A JP2004370512A JP2006178701A JP 2006178701 A JP2006178701 A JP 2006178701A JP 2004370512 A JP2004370512 A JP 2004370512A JP 2004370512 A JP2004370512 A JP 2004370512A JP 2006178701 A JP2006178701 A JP 2006178701A
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JP
Japan
Prior art keywords
connector
memory card
lt
gt
case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2004370512A
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Japanese (ja)
Inventor
Minoru Shinohara
Tamaki Wada
Yuichiro Yamada
環 和田
有一郎 山田
稔 篠原
Original Assignee
Renesas Technology Corp
株式会社ルネサステクノロジ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renesas Technology Corp, 株式会社ルネサステクノロジ filed Critical Renesas Technology Corp
Priority to JP2004370512A priority Critical patent/JP2006178701A/en
Publication of JP2006178701A publication Critical patent/JP2006178701A/en
Application status is Pending legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To improve the reliability of a memory card by sharply reducing defective connection between a printed board and a connector due to ejection of the memory card from a slot. <P>SOLUTION: In a memory card 1 to be used for a playing machine such as Pachinko, fixing projection parts 2b, 3b are respectively formed on the inner surface of one long side of each of caps 2, 3 consisting of acrylic resin in the vicinity of the outer peripheral part of the long side. On both the side faces of a connector 6 joined to the printed board 4, engaging grooves 6<SB>1</SB>are formed in the longitudinal direction. In the case of forming a case of the memory card 1 by superposing the caps 2, 3 on each other, the engaging grooves 6<SB>1</SB>of the connector 6 are respectively engaged with the fixing projection parts 2b, 3b of the caps 2, 3 to fix the connector 6. Consequently the connector 6 joined to the printed board 4 is fixed and application of stress to a joint part between the printed board 4 and the connector 6 at the time of inserting/ejecting the memory card 1 can be prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technology for improving the reliability of a memory card, and more particularly to a technology effective for preventing poor connection of a memory card used in a gaming machine such as a pachinko machine.

  As a gaming machine, for example, pachinko is widely known. In general, in pachinko, a non-volatile semiconductor memory such as a flash memory is used as a semiconductor memory for storing software used for displaying images on a display as a game progresses.

  The flash memory is mounted on a printed wiring board of an electronic system provided inside the pachinko, for example, via an IC socket in consideration of dust resistance and vibration resistance.

  However, the present inventors have found that there are the following problems in the flash memory mounting technology in gaming machines such as pachinko machines as described above.

  As the diversification and expansion of gaming machines progresses, advanced production of the gaming machines is widely desired, and in order to improve the visual production, the video display displayed on the display of the gaming machine The software used tends to increase in capacity.

  As a result, the number of flash memories used tends to increase. As described above, since the flash memory is mounted on the printed wiring board via the IC socket, there is a problem that the mounting area becomes very large and the cost associated with mounting increases.

  According to a study by the present inventor, by using a flash memory as a card and using it as a memory card, it is possible to achieve high-density mounting, large data capacity, and low mounting cost.

  As memory cards, for example, personal computers such as CF (Compact Flash®) cards and external storage media such as multi-function terminals are widely known. In the case of this CF card, for example, it is composed of an upper lid, a printed wiring board on which a cap serving as a lower lid and a flash memory are mounted, and a connector.

  A connector is connected in the vicinity of a side of the printed wiring board. This connector is connected to the connector of the memory slot. And the cap used as an upper cover and a lower cover is adhere | attached so that a connector may be inserted | pinched.

  The connector is formed so that the tip end portion (memory slot side) is widened toward the end, and at both ends of the connector, there are provided an upper lid and a protruding portion that engages with a cap serving as a lower lid.

  When the CF card is removed from the slot, the caps serving as the upper lid and the lower lid receive the protruding portion of the connector to reduce the stress applied to the connector. When the CF card is inserted into the slot, In this configuration, the tip of the connector, which is formed in a divergent shape, is pressed against the cap to disperse the stress applied to the connector, thereby reducing contact failure between the connector and the printed wiring board.

  In the above-mentioned CF card, since the cap is made of metal, sufficient strength can be maintained. However, when a memory card is used in a game machine such as a pachinko machine, it is mounted on a printed wiring board due to legal restrictions. There is a restriction that the cap must be formed of a transparent material such as plastic so that the flash memory can be seen.

  Therefore, if the memory card used in the gaming machine has the same structure as the CF card, the strength of the cap will be insufficient, and a large stress will be applied to the connector due to the insertion and removal of the memory card. Connection failure may occur.

  An object of the present invention is to provide a memory card that can greatly reduce the connection failure between a printed wiring board and a connector due to insertion / removal from / from a slot and improve reliability.

  The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  A memory card according to the present invention includes a printed wiring board on which a semiconductor device is mounted, a connector for slot connection mounted along one side of the four sides of the printed wiring board, a first A case body and a second case body, each of which includes a case in which inner surfaces of three outer peripheral portions of the first and second case bodies are joined to each other, and the first and second cases are: Fixing protrusions are provided on the inner surfaces of the first and second cases to fit the connectors, and the connectors are fitted to the fixing protrusions provided on the inner surfaces of the first and second cases, respectively. When the first case body and the second case body are joined, the fixing protrusion is fitted into the fitting groove to fix the connector.

  Moreover, the outline | summary of the other invention of this application is shown briefly.

  In the memory card of the present invention, the semiconductor device is composed of a nonvolatile semiconductor memory.

  In the memory card of the present invention, the first and second case bodies are formed of a transparent resin.

  Furthermore, in the memory card of the present invention, the fitting groove of the connector is formed from one end of the connector to the other end in the longitudinal direction of the connector, and the fixing protrusion corresponds to the fitting groove. It was formed to fit together.

  Among the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows.

  (1) Since stress is not applied to the printed wiring board when the memory card is inserted and removed, it is possible to prevent poor contact between the printed wiring board and the connector.

  (2) According to the above (1), the reliability of the memory card can be greatly improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

  1 is a plan view of a memory card according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the memory card shown in FIG. 1, and FIG. 3 is an explanatory view at the time of forming a case of the memory card shown in FIG. is there.

  The memory card 1 stores data used for video display on a display in a gaming machine such as a pachinko machine. The memory card 1 is composed of, for example, a rectangular card having a length of about 35.0 mm, a width of about 56.0 mm, and a thickness of about 3.0 mm.

  As shown in FIGS. 1 and 2, the memory card 1 includes a cap (first case body) 2, a cap (second case body) 3, and a printed wiring board 4.

  The caps 2 and 3 are made of, for example, a transparent acrylic resin. Outer abutting portions 2a and 3a are respectively formed on the inner surfaces of the outer peripheral portions of the three sides of the caps 2 and 3, and the fixing protrusions are formed on the inner surfaces of the remaining sides of the caps 2 and 3 near the outer peripheral portion. Portions 2b and 3b are formed.

  Further, a projecting portion 2 c is formed at an end portion on the short side of the cap 2 so as to go around the remaining one side of the cap 2. Similarly, a projecting portion is formed at an end portion on the short side of the cap 3 so as to go around the other side of the cap 3. Then, the case of the memory card 1 is formed by joining the caps 2 and 3 together.

  In this case, a printed wiring board 4 made of a glass epoxy board or the like is provided. The printed wiring board 4 is a rectangular double-sided mounting board, and a rectangular connector 6 is mounted on one long side of the printed wiring board 4.

  The connector 6 has a shape corresponding to a memory slot (for example, about 120 pins) mounted on a printed wiring board provided in an electronic system serving as a host device provided in the gaming machine.

  The electrode of the connector 6 and the electrode of the memory slot are electrically connected to exchange data between the memory card 1 and the host device.

  For example, a male slot is provided in a memory slot provided in the electronic system, and the connector 6 corresponding to the slot has a female pin structure. For example, the memory card 1 is mounted in a memory slot so as to be perpendicular to a printed wiring board provided in the electronic system.

  On one mounting surface of the printed wiring board 4, eight flash memories (semiconductor devices and non-volatile semiconductor memories) 5 are mounted at equal intervals in two upper and lower rows. Similarly, eight flash memories are mounted on the other mounting surface of the printed wiring board 4 in two rows at equal intervals.

  As described above, since the caps 2 and 3 are made of transparent acrylic resin or the like, the 16 flash memories 5 mounted on the printed wiring board 4 should be visually observed with the caps 2 and 3 attached. Can do.

  Further, the connector 6 is provided with a base 6a serving as a case, and a plurality of female pins are embedded in the base 6a at positions corresponding to the male pins of the slots.

Base 6a is made of, for example, LCP (liquid crystal polyester) resin, the sides of the base 6a, longitudinally securing lug 2b, a fitting groove 61 to be fitted to 3b are formed. For example, the fitting groove is formed continuously from one end of the connector 6 to the other end in the longitudinal direction of the connector 6.

  When forming the case of the memory card 1 with the caps 2 and 3, as shown in FIG. 3, the outer peripheral butted portions 2a and 3a of the caps 2 and 3 are overlapped, for example, by ultrasonic fusion (or Join with adhesive.

Then, the outer peripheral abutting portion 2a of the cap 2, 3a is when superimposed each fitting groove 61 is the securing lug 2b of the cap 2, 3 of the connector 6, respectively fitted to 3b the The connector 6 is fixed, and the protrusions 2c formed on the caps 2 and 3 are engaged with both ends of the connector 6 to reduce the right and left displacement of the connector.

  Thus, only the connector 6 mounted on the printed wiring board 4 is fixed by the caps 2 and 3, and the printed wiring board 4 is not fixed.

  Next, the operation of the fixing protrusions 2b and 3b formed on the memory card 1 in the present embodiment will be described.

When the memory card 1 is inserted and removed from the memory slot provided in the electronic system, the force at that time is applied to the connector 6 of the memory card 1, and the stress is applied to the fitting groove 6 of the connector 6. The fixing protrusions 2b and 3b fitted to 1 are received.

  Accordingly, the connector 6 can be securely fixed even with the caps 2 and 3 made of an acrylic resin that is inferior in strength to metal or the like. When the memory card 1 is inserted and removed, the printed wiring board 4 and the connector 6 It is possible to prevent stress from being applied to the joint.

  Thereby, in the present embodiment, the connector 6 can be securely fixed, so that it is possible to prevent a poor contact between the printed wiring board 4 and the connector 6 due to the insertion / extraction of the memory card 1. The reliability of the memory card 1 can be improved.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in the above-described embodiment, the connector is a mespin structure and the memory slot provided in the electronic system is the ospin structure. However, the connector provided in the memory card may be the ospin structure.

  FIG. 4 is a partial cross-sectional view of the memory card 1 in which the connector 6 has a mespin structure, and FIG. 5 shows a partial plan view of the memory card 1 in which the connector 6 has a mespin structure.

  In this case, the connector 6 is formed such that a plurality of male pins (pin headers) 6c protrude from a base 6b made of, for example, LCP (liquid crystal polyester) resin, and the male pins 6c are formed in a memory slot. It becomes the structure joined to.

The connector 6, as with the first embodiment, longitudinally securing lug 2b, fitting groove 6 2 for fitting to 3b are respectively formed at both sides of the base 6b.

  The structure of the caps 2 and 3 is the same as that of the first embodiment (FIGS. 1 and 2), and the description thereof is omitted.

  When the case of the memory card 1 is formed, the outer peripheral abutting portions 2a and 3a of the caps 2 and 3 are overlapped and joined by, for example, ultrasonic fusion (or adhesive).

In this case, the fitting groove 6 2 securing lug 2b of the cap 2, 3 of the connector 6, 3b (FIG. 1, FIG. 2) Since each fitted, it is possible to securely fix the connector 6 .

  As a result, it is possible to prevent poor contact between the printed wiring board 4 and the connector 6 when the memory card 1 is inserted and removed, and the reliability of the memory card 1 can be improved.

  Moreover, in the said embodiment, although it was set as the structure which provided the fitting groove | channel in the connector and provided the protrusion part for fixation in the cap, for example, the protrusion part for fixation was provided in the connector and the cap was formed in this connector It is good also as a structure which formed the fitting groove | channel corresponding to the protrusion part for fixation.

  In that case, by providing the cap with the fitting groove, the thickness of the cap at the portion where the fitting groove is formed becomes thin, and the desired strength may not be maintained. Therefore, the plate thickness of the cap is adjusted so as to obtain a desired strength.

  The present invention is suitable for, for example, a technique for improving the reliability of a memory card in which a case is formed of a transparent resin used in gaming machines such as pachinko machines.

1 is a plan view of a memory card according to an embodiment of the present invention. It is sectional drawing of the memory card of FIG. It is explanatory drawing at the time of case formation of the memory card of FIG. It is a partial sectional view of a memory card according to another embodiment of the present invention. FIG. 5 is a partial plan view of the memory card shown in FIG. 4.

Explanation of symbols

1 Memory card 2 Cap (first case body)
2a Peripheral butting part 2b Fixing protrusion 2c Protruding part 3 Cap (second case body)
3a Peripheral butting part 3b Fixing protrusion 4 Printed wiring board 5 Flash memory (semiconductor device, nonvolatile semiconductor memory)
6 Connector 6a, 6b Base 6c Male pin 6 1 Fitting groove 6 2 Fitting groove

Claims (4)

  1. A printed wiring board on which a semiconductor device is mounted;
    A connector for slot connection mounted along one side of the four sides of the printed wiring board;
    A case having a first case body and a second case body, the inner surfaces of three outer peripheral portions of the first and second case bodies being joined to each other;
    The first and second cases are:
    Provided on the inner surfaces of the first and second cases are fixing protrusions that fit into the connectors,
    The connector is
    Providing fitting grooves to be fitted to the fixing protrusions provided on the inner surfaces of the first and second cases,
    A memory card, wherein when the first case body and the second case body are joined, the fixing protrusion is fitted into the fitting groove to fix the connector.
  2. The memory card according to claim 1,
    The memory card, wherein the semiconductor device is a nonvolatile semiconductor memory.
  3. The memory card according to claim 1 or 2,
    The memory card, wherein the first and second case bodies are formed of a transparent resin.
  4. The memory card according to any one of claims 1 to 3,
    The fitting groove of the connector is
    In the longitudinal direction of the connector, formed from one end of the connector to the other end,
    The fixing protrusion is
    A memory card formed so as to be fitted in correspondence with the fitting groove.
JP2004370512A 2004-12-22 2004-12-22 Memory card Pending JP2006178701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004370512A JP2006178701A (en) 2004-12-22 2004-12-22 Memory card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004370512A JP2006178701A (en) 2004-12-22 2004-12-22 Memory card

Publications (1)

Publication Number Publication Date
JP2006178701A true JP2006178701A (en) 2006-07-06

Family

ID=36732767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004370512A Pending JP2006178701A (en) 2004-12-22 2004-12-22 Memory card

Country Status (1)

Country Link
JP (1) JP2006178701A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10501477A (en) * 1994-06-20 1998-02-10 エルコ コーポレーション Detachable device connector latch
JPH11175684A (en) * 1997-12-16 1999-07-02 Japan Aviation Electron Ind Ltd Electronic card
JPH11175685A (en) * 1997-12-16 1999-07-02 Japan Aviation Electron Ind Ltd Electronic card and its manufacture
JP2000276572A (en) * 1999-03-29 2000-10-06 Citizen Watch Co Ltd Ic card
JP2000514226A (en) * 1996-08-12 2000-10-24 グレート アメリカン ガムボール コーポレイション It surrounds of small electric devices
JP2002351322A (en) * 2001-05-22 2002-12-06 Sato Corp Method of manufacturing label and label

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10501477A (en) * 1994-06-20 1998-02-10 エルコ コーポレーション Detachable device connector latch
JP2000514226A (en) * 1996-08-12 2000-10-24 グレート アメリカン ガムボール コーポレイション It surrounds of small electric devices
JPH11175684A (en) * 1997-12-16 1999-07-02 Japan Aviation Electron Ind Ltd Electronic card
JPH11175685A (en) * 1997-12-16 1999-07-02 Japan Aviation Electron Ind Ltd Electronic card and its manufacture
JP2000276572A (en) * 1999-03-29 2000-10-06 Citizen Watch Co Ltd Ic card
JP2002351322A (en) * 2001-05-22 2002-12-06 Sato Corp Method of manufacturing label and label

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