JP2007134101A - Card connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a so-called multi-card connector allowing a card to be easily inserted and extracted by preventing the inserted card from contacting contacts even if a card insertion opening is shared, and capable of preventing damage of the card. <P>SOLUTION: A long third card 3 is horizontally inserted in a card insertion space 7 through a shared card insertion opening 6 and connected to third contacts 13 for a third card; a short first card 1 is inserted in an obliquely downward direction and connected to first contacts 11 for a first card arranged at a low position relative to the bottom surface of the third card in insertion; and an intermediate-length second card 2 is inserted in an obliquely upward direction and connected to second contacts 12 for a second card arranged at a high position relative to the bottom surface of the third card in insertion. This card connector is provided with: a first contact pressing member 16 for pressing down the first contacts 11 in inserting the second card to prevent it from contacting to the second card 2; and a second contact pressing member 17 for pressing down the second contacts 12 in inserting the third card to prevent it from contacting to the third card 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a card connector for electrically connecting a memory card to a printed wiring board built in an electronic device such as a personal computer, a computer peripheral device such as a printer, and an AV device such as an FPD / DVD. The present invention relates to a so-called multi-card connector, which is compatible with three types of memory cards such as xD picture cards, memory sticks, SD memory cards, and multimedia cards that have different external shapes.

  In this type of card connector, various cards are inserted into the card insertion space in the housing through a common card insertion opening provided at one end of the housing so as to prevent simultaneous insertion of two or more cards. It has become. In this configuration, when a medium-length card or a long card is inserted, there is a problem that the bottom surface is worn by rubbing against a short card contact or a medium-length card contact, and insertion resistance is increased.

The problem is that a conventional card connector that can handle two types of memory cards having different lengths, for example, as described in Patent Document 1, does not contact a long card with a short card contact. The problem can be solved by either pushing up to a position or pushing down a contact for a short card to a position where it does not come into contact with a long card as described in Patent Document 2.
JP 2003-317862 A JP 2003-288932 A

  The problem to be solved by the present invention is a so-called multi-card connector that can handle three types of memory cards. In the former method, when a long card is inserted, the long card is pushed up to a position where it does not come into contact with the short card contact. Furthermore, since it is necessary to push up to a position where it does not come into contact with the medium-length card contact, the height of the connector increases, and the latter means requires that the short card contact be elastically deformed regardless of the type of the inserted card. Yes, and because the deformation is large, the life of contacts for short cards is significantly shorter than that for contacts with medium length cards and contacts for long cards, and for contacts with short cards and medium length cards. The greater the elastic force of the contact, the higher the contact reliability, but the greater the card insertion resistance. For Kunar, given short card contacts and Chucho of contact for card contact reliability improvement and the card insertion resistance reduction and to a point that can not be achieved simultaneously.

  The invention according to claim 1 of the present invention for solving the above-mentioned problems is that the first card is longer than the first card through the common card insertion slot provided on one end side, the lateral width is narrow, the thickness is A second card having a large thickness, a housing having a card insertion space into which a third card having a longer length, a smaller width, and a thicker thickness can be inserted, and through the card insertion slot. The card insertion slot side of the card insertion space so that the contact portion provided on the free end side is brought into contact with and electrically connected to the contact terminal provided on the insertion end side of the bottom surface of the first card inserted into the card insertion space. A first contact provided in a cantilever shape, and a contact portion provided on the free end side on a contact terminal provided on the insertion end side of the bottom surface of the second card inserted into the card insertion space through the card insertion slot To make electrical connection A second contact provided in a cantilever shape behind the first contact in the card insertion space, and an insertion end side of the bottom surface of the third card inserted into the card insertion space through the card insertion slot A third contact provided in a cantilever shape on the back side of the second contact in the card insertion space so that a contact portion provided on the free end is brought into contact with and electrically connected to a contact terminal provided on the card It is provided with a composite card connector that can accommodate three types of memory cards having different external shapes.

  In addition to the above configuration, both side walls of the first card are slidably fitted to both sides so that the first card is inserted and guided obliquely downward from the card insertion slot into the card insertion space. The first guide provided with an inclination angle and the both ends of the surface of the second card are brought into sliding contact with each other, and the second card is inserted and guided obliquely upward from the card insertion slot into the card insertion space. A second guide provided with an inclination angle on both side walls of the card insertion space and a through hole through which the contact portion of the first contact penetrates from the lower surface side to the upper surface side, and one end side of the card insertion space is provided. A first contact pressing member pivotally supported on both side walls and a through hole through which the contact portion of the second contact penetrates from the lower surface side to the upper surface side are provided, and one end side is rotated to both side walls of the card insertion space. A second contact pressing member that is pivotally supported. In addition, the contact portion of the first contact is provided at a lower position than the bottom surface of the third card inserted into the card insertion space in the horizontal direction along the top surface of the card insertion space through the card insertion opening and the second contact at a higher position. The first card rides on the first contact pressing member by inserting the first card obliquely downward into the card insertion space through the card insertion slot, and on the bottom surface of the first card. The first contact pressing member is pressed down, and the contact terminal of the first card comes into contact with the contact portion of the first contact on which the preload is applied in accordance with the pressing of the first contact pressing member, and the second card Is inserted diagonally upward into the card insertion space through the card insertion slot, so that the second card rides on the first contact pressing member, and the second card In the state where the first contact pressing member is pushed down at the bottom surface, and the contact portion of the first contact is pushed down lower than the bottom surface of the second card as the first contact pressing member is pushed down, Rides on the second contact pressing member, pushes down the second contact pressing member on the bottom surface of the second card, and the contact of the second contact that is preloaded along with the pressing of the second contact pressing member The contact terminal of the second card comes into contact with the card, and the third card is inserted into the card insertion space in the horizontal direction through the card insertion slot, so that the third card contacts the contact part of the first contact and the first card. The third card passes through the contact portion of the first contact and the first contact pressing member at a height position where the third card does not contact with the contact pressing member, and the third card is in the second contour. The second contact pressing member is pushed down on the bottom surface of the third card, and the contact portion of the second contact is moved from the bottom surface of the third card as the second contact pressing member is pressed down. The contact terminal of the third card is configured to come into contact with the contact portion of the third contact while being pushed down to a low level.

  According to the first aspect of the present invention, it is possible to configure a so-called multi-card connector capable of supporting three types of memory cards having different external shapes. Then, the first card is inserted obliquely downward into the card insertion space through the card insertion slot, and inserted into the card insertion space horizontally along the top surface of the card insertion space through the card insertion slot. Since the contact terminal of the first card is brought into contact with and electrically connected to the contact portion of the first contact provided at the lower position, the third card only needs to avoid contact with the second contact, and The third card avoids contact with the second contact by pushing down the second contact by the second contact pressing member. Also, the second card is inserted into the card insertion space obliquely upward through the card insertion slot, and is inserted into the card insertion space horizontally along the top surface of the card insertion space through the card insertion slot. Since the contact portion of the second contact provided higher is brought into contact with the contact terminal of the second card to be electrically connected, the first contact is located at a position higher than the card insertion slot on the bottom surface of the second card. And the contact portion of the first contact is provided lower than the bottom surface of the third card inserted into the card insertion space in the horizontal direction along the top surface of the card insertion space through the card insertion slot. The amount by which the first contact is pushed down by the first contact pressing member to avoid contact of the second card with the first contact is small. As a result, when the second card or the third card in a so-called multi-card connector is inserted into the card insertion space through the common card insertion slot, the bottom surface is worn by rubbing against the first contact or the second contact, The problem that the insertion resistance is increased is to suppress an increase in the height of the connector, and to the first card as compared with the second contact for the second card and the third contact for the third card. This can be solved while suppressing the life of the first contact from being significantly shortened.

  Further, the contact terminal of the first card is brought into contact by further pressing down the contact portion of the first contact preloaded by the first contact pressing member, and the contact terminal of the second card is contacted by the second contact pressing member. While the contact portion of the second contact on which the preload is applied is further pushed down to make contact, the second card pushes the first contact from the free state by the first contact pressing member to make contact with the first contact. The third card avoids contact with the second contact by pushing down the second contact from the free state by the second contact pressing member, so that the first card and the second contact for the first card are avoided. It is possible to simultaneously improve the contact reliability of the second contact for the card and reduce the insertion resistance of the second card or the third card.

  As apparent from the above, the invention according to claim 1 of the present invention is such that the second card and the third card are the first contact and the second card for the first card even if the card insertion slot is common. The second card or the third card can be easily inserted and removed without being in contact with the second contact, and the second card or the third card is damaged by the first contact or the second contact. In other words, a so-called multi-card connector can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is an external perspective view of the card connector, FIG. 2 is an external perspective view of the card connector with the cover removed, FIG. 3 is a front view (front view) showing a card insertion slot of the card connector, and FIG. FIG. 5 is a cross-sectional view of the card connector, FIG. 6 is a plan view of the card connector with the cover removed, and FIG. 7 is a view of the first card. FIG. 8 is a cross-sectional view of the card connector showing the inserted state, FIG. 8 is a plan view of the card connector with the cover removed, and FIG. 9 is a cross-sectional view of the card connector showing the inserted state of the second card. FIG. 10 is a plan view of the card connector with its cover removed, and FIG. 11 is a cross-sectional view of the card connector showing the state of insertion of the third card.

  This card connector is mounted on a printed wiring board (not shown) built in a PC peripheral device such as a personal computer or a printer, or an electronic device such as an AV device such as an FPD / DVD, and electrically connects the board and the memory card. Compatible with three types of memory cards (xD picture card shown in FIGS. 6 and 7, SD memory card shown in FIGS. 8 and 9, and memory stick shown in FIGS. 10 and 11) with different connectors. This is a so-called multi-card connector. Since the multimedia card has the same external shape as the SD memory card, there are four types of memory cards that can be handled if this multimedia card is included.

  The external shape (length / width / thickness) of the xD picture card, SD memory card, and memory stick is longer in this order, narrower in width, and thicker. The xD picture card is the first card. 1. The SD memory card is longer than the first card 1, the width is narrower, the second card 2 is thicker, the memory stick is longer than the second card 2, the width is narrower, the thickness Becomes the thick third card 3.

  As shown in FIGS. 1 to 5 and FIGS. 10 and 11, the card connector includes a peripheral side wall 4a along the three side surfaces of the left and right side surfaces and the insertion side end surface of the third card 3, and a space surrounded by the peripheral side wall 4a. The left and right side edges of the rectangular top plate 5a are formed on a resin-made body 4 provided with a front contact base 4b and a rear contact base 4c that form bottoms at the open end side front part and the closed end side rear part, respectively. Further, a cross-sectional shape (width and thickness) of the third card 3 is formed on the front side surface by attaching a conductive cover 5 made of sheet metal with the left and right side plates 5b and the rear plate 5c suspended along the rear edge. The card insertion slot 6 having an opening width W3 and an opening height H3 corresponding to () is opened (see FIG. 3), and the third card 3 extends horizontally along the top plate 5a of the cover 5 through the card insertion slot 6. A third that can be inserted and removed (parallel to the substrate) Constitute a thin rectangular box-shaped housing 8 provided with a card insertion space 7 inside with slightly shorter depth than over de 3.

  Further, as shown in FIGS. 1 to 5 and FIGS. 8 and 9, the left and right inner portions of the peripheral side wall 4a of the body 4 serving as the left and right side walls of the card insertion space 7 are connected to the left and right side portions of the second card 2 from the front end. The second left and right guide grooves 9 are slidably fitted to each other, and the second left and right guide grooves 9 insert the card into the card insertion slot 6 and a depth slightly shorter than the length of the second card 2. The space 7 is expanded corresponding to the cross-sectional shape (horizontal width and thickness) of the second card 2 and the horizontal width W2 corresponding to the cross-sectional shape (horizontal width and thickness) of the second card 2 in the card insertion slot 6. The second card 2 can be inserted into and removed from the card insertion space 7 through an opening portion (see FIG. 3) having a height T2.

  Further, as shown in FIGS. 2 to 5, 6, and 7, the left and right inner side surfaces of the peripheral side wall 4 a of the body 4, which are the left and right side walls of the card insertion space 7 extended by the second left and right guide grooves 9, are provided. A first left and right guide groove 10 for slidably fitting the left and right side portions of the first card 1 from the front end via the second left and right guide grooves 9 is provided. The card insertion slot 6 and the card insertion space 7 having a depth slightly shorter than the length of the first card 1 are formed by the second left and right guide grooves 9, and the cross-sectional shape (lateral width and thickness) of the first card 1. The first card 1 is extended through an opening (see FIG. 3) having a width W1 and a height T1 corresponding to the cross-sectional shape (width and thickness) of the first card 1 in the card insertion slot 6. The card can be inserted into and removed from the card insertion space 7.

  With the above configuration, the housing 8 has a single card insertion slot 6 into which the first card 1, the second card 2, and the third card 3 can be inserted and removed. A card insertion space 7 into which the first card 1, the second card 2 and the third card 3 can be inserted and removed is provided inside. In this way, two or more cards are configured by inserting the first card 1, the second card 2, and the third card 3 into the card insertion space 7 inside the housing 8 through the common card insertion slot 6. It is designed to prevent simultaneous card insertion.

  The cover 5 is fixed to the body 4 by fitting a plurality of engaging claws 4d projecting on the left and right outer surfaces of the peripheral side wall 4a of the body 4 into a plurality of engaging holes 5d formed in the left and right side plates 5b. . A plurality of positioning pins 4 e provided on the bottom surface of the body 4 protrude from the bottom surface of the housing 8. The pin portion 4e is inserted into a positioning hole provided in the board when the card connector is mounted on the board, and positions the card connector with the board. At the four corners of the housing 8, soldering leg portions 5 e provided on the left and right side plates 5 b of the cover 5 protrude substantially flush with the bottom surface of the housing 8. The leg portions 5e are soldered to the ground lands of the board and electrically connected by mounting the card connector on the board. As a result, static electricity from a person is released to the ground through the cover 5 to prevent electrostatic breakdown of various electronic components mounted on the substrate.

  As shown in FIGS. 2 to 5, the card insertion space 7 is provided with a plurality of first contacts 11, a plurality of second contacts 12, and a plurality of third contacts 13. Each of these contacts 11, 12, 13 is made of a thin metal plate (plate spring), the first contact 11 is fixedly supported at the front part to the front contact base 4 b, and the rear part is a card insertion slot of the card insertion space 7. 6 is raised up to the bottom on the side of 6 and is arranged in a cantilever shape on the bottom of the card insertion space 7 on the side of the card insertion slot 6, and inserted into the card insertion space 7 through the card insertion slot 6. A contact portion 11a with a contact terminal (not shown) provided on the insertion end side of the bottom surface of the first card 1 is provided on the rear end side which is the free end side. The second contact 12 is fixedly supported at the rear part to the rear contact base 4c, and the front part is raised to the bottom of the card insertion space 7 on the back side from the first contact 11 so as to be inclined. A contact (not shown) provided on the insertion end side of the bottom surface of the second card 2 that is juxtaposed in a cantilever shape at the bottom of the first contact 11 and inserted into the card insertion space 7 through the card insertion slot 6. The contact portion 12a with the terminal is provided on the front end side which is the free end side. The third contact 11 is provided with a folded portion at an intermediate portion, one end side of the folded portion is fixedly supported on the front contact base 4 b, and the other end side of the folded portion is connected to the second contact 12 in the card insertion space 7. It rises in a rear-upward inclined manner on the bottom on the back side, is arranged in a cantilever shape on the bottom on the back side from the second contact 12 in the card insertion space 7, and enters the card insertion space 7 through the card insertion slot 6. A contact portion 12a with a contact terminal (not shown) provided on the insertion end side of the bottom surface of the inserted third card 1 is provided on the end portion on the other end side from the folded portion on the free end side.

  In addition, a soldering leg portion 11b that protrudes substantially flush with the bottom surface of the housing 8 from the front end of the front contact base 4b is provided on the front end side, which is the fixed end side of the first contact 11, and the second contact 12 is provided. The rear end side which is the fixed end side and the end portion which is one end side from the folded portion which is the fixed end side of the third contact 13 protrude from the rear end of the rear contact base 4c substantially flush with the bottom surface of the housing 8 respectively. Legs 12b and 13b for soldering are provided. Each of these legs 11b, 12b, and 13b is soldered and fixed to a predetermined land on the board by electrically mounting the card connector on the board, and is electrically connected. As a result, the contacts 11, 12, 13 are electrically connected to the substrate.

  Here, as shown in FIGS. 5, 7, and 11, the contact portion 11 a in the free state of the first contact 11 is the top plate 5 a of the cover 5 that becomes the top surface of the card insertion space 7 through the card insertion slot 6. The first card 1 is provided at a position lower than the bottom surface of the third card 3 that is inserted in the horizontal direction along the first direction so that the first card 1 is inserted and guided obliquely downward from the card insertion slot 6 into the card insertion space 7. The first left and right guide grooves 10 that slidably fit the left and right side portions of the card 1 through the second left and right guide grooves 9 are slidably contacted with the bottom surfaces of the left and right side portions of the first card 1. A first guide 14 having an inclination angle θ1 together with the bottom surface 9a of the left and right guide grooves 9 is provided on the left and right inner surfaces of the peripheral side wall 4a of the body 4, and the first guide 14 having the inclination angle θ1 is provided. The first card 1 is not in the horizontal direction (parallel to the substrate) The first card 1 is held in the card insertion space 7 with an inclination angle θ1, and the contact terminal of the first card 1 is connected to the contact terminal The contact portion 11a of the first contact 11 is brought into contact with and electrically connected.

  As shown in FIGS. 5, 7, and 11, the contact portion 12 a in the free state of the second contact 12 is inserted through the card insertion slot 6 in the horizontal direction along the top plate 5 a of the cover 5. The right and left side portions of the second card 2 are slidable so that the second card 2 is inserted and guided obliquely upward into the card insertion space 7 from the card insertion slot 6. A second guide 15 having an inclination angle θ2 on the top surface 9b slidably in contact with the top surface of the left and right side portions of the second card 2 of the second left and right guide groove 9 fitted to the periphery of the body 4 The second card 2 is provided on the inner left and right side surfaces of the side wall 4a, and the second guide 15 having the inclination angle θ2 is inclined upward from the card insertion slot 6 to the card insertion space 7 instead of horizontally (parallel to the substrate). And guide the second card 2 at an inclination angle θ2. Make myself held into the card insertion space 7, it is configured to connect the second contact terminals of the card 2 is brought into contact with the contact portion 12a of the second contact 12 electrically.

  As shown in FIGS. 2 to 5, the card insertion space 7 is provided with a first contact pressing member 16 and a second contact pressing member 17. Each of the contact pressing members 16 and 17 is made of a horizontally long rectangular plate made of resin and having insulating properties. The first contact pressing member 16 penetrates the contact portion 11a of the first contact 11 in the middle portion from the lower surface side to the upper surface side. A plurality of through-holes 16a are arranged in parallel, and the rear end side of the first contact pressing member 16 located on the back side of the contact portion 11a of the first contact 11 in the card insertion space 7 is interposed via the rotation shaft 16a. The left and right inner surfaces of the peripheral side wall 4a of the body 4 are rotatably supported at a position lower than the contact portion 11a of the first contact 11, and the card insertion port 6 side of the contact portion 11a of the first contact 11 in the card insertion space 7 is supported. The upper surface on the front end side of the first contact pressing member 16 positioned at is lifted and supported at substantially the same height as the contact portion 11 a of the first contact 11. Then, as shown in FIG. 7, the first card 1 is inserted into the card insertion space 7 obliquely downward through the card insertion slot 6, so that the first card 1 is placed on the upper surface on the front end side of the first contact pressing member 16. It rides ahead of the contact portion 11 a of the first contact 11, pushes down the first contact pressing member 16 at the bottom surface of the first card 1, and the first contact 11 is accompanied by the pressing down of the first contact pressing member 16. The contact terminal of the first contact 1 is brought into contact with the contact portion 11a of the preloaded first contact 11. Further, as shown in FIG. 9, the second card 2 is inserted into the card insertion space 7 through the card insertion slot 6 obliquely upward, so that the second card 2 is placed on the upper surface of the front end side of the first contact pressing member 16. It rides ahead of the contact portion 11 a of the first contact 11, pushes down the first contact pressing member 16 at the bottom surface of the second contact 2, and the first contact 11 is accompanied by pressing down of the first contact pressing member 16. The contact portion 11a is pushed down below the bottom surface of the second contact 2 so as to avoid contact between the bottom surface of the second card 2 and the contact portion 11a of the first contact 11.

  The second contact pressing member 17 is provided with a plurality of through holes 17a penetrating the contact portion 12a of the second contact 12 from the lower surface side to the upper surface side in the middle portion, so that the first contact pressing force of the card insertion space 7 is reached. The front end side of the second contact pressing member 17 located on the card insertion slot 6 side of the contact portion 12a of the second contact 12 on the back side of the member 16 is contacted with the contact portion 12a of the second contact 12 via the rotation shaft 17a. An intermediate portion of the second contact pressing member 17 which is pivotally supported on the left and right inner side surfaces of the peripheral side wall 4a of the body 4 at a lower position and is positioned immediately before the contact portion 12a of the first contact 12 in the card insertion space 7. The upper surface is inserted into the card insertion space 7 obliquely upward through the card insertion slot 6 and the card 2 is inserted through the card insertion slot 6 in the horizontal direction along the top plate 5a of the cover 5. We are supporting lifting to the bottom higher than the height of the card 3. Then, as shown in FIG. 9, the second card 2 is inserted into the card insertion space 7 obliquely upward through the card insertion slot 6, so that the second card 2 is immediately before the contact portion 12 a of the second contact 12. It rides on the upper surface of the intermediate part of the second contact pressing member 17 and pushes down the second contact pressing member 17 on the bottom surface of the second card 2, and the second contact 12 is accompanied by the pressing down of the second contact pressing member 17. And the contact terminal of the second card 2 is brought into contact with the contact portion 12a of the second contact 12 that has been preloaded. Further, as shown in FIG. 11, the third card 3 is inserted into the card insertion space 7 in the horizontal direction along the top plate 5a of the cover 5 through the card insertion slot 6, so that the third card 3 is connected to the second contact. Riding on the upper surface of the intermediate portion of the second contact pressing member 17 immediately before the 12 contact portions 12a, pressing down the second contact pressing member 17 on the bottom surface of the third card 3, and pressing down the second contact pressing member 17 Along with this, the contact portion 12a of the second contact 12 is completely buried in the through hole 17a of the second contact pressing member 17 and pushed down lower than the bottom surface of the third card 3, and the bottom surface of the third card 3 is pressed. And the contact portion 12a of the second contact 12 is avoided.

  When the second card 2 rides on the first contact pressing member 16 and the second contact pressing member 17, the second card 2 passes through the first contact pressing member 16 and the second contact pressing member 17. The top surface of the left and right sides of the second card 2 is pressed against the second guide 15 by being biased upward by the elastic force of the first contact 11 and the second contact 12. Thus, the second card 2 is guided to be inserted obliquely upward into the card insertion space 7 from the card insertion slot 6 along the second guide 15 having the inclination angle θ2 and the second card 2 is inclined. The card insertion space 7 is held with θ2. Further, when the third card 3 rides on the second contact pressing member 17, the third card 3 is urged upward by the elastic force of the second contact 12 through the second contact pressing member 17, The top surface of the third card 3 is pressed against the top plate 5 a of the cover 5. Thereby, the third card 3 is guided to be inserted into the card insertion space 7 from the card insertion slot 6 in the horizontal direction along the top plate 5 a of the cover 5, and the third card 3 is guided along the top plate 5 a of the cover 5. It is held horizontally in the card insertion space 7.

  As shown in FIGS. 2, 4, 5, and 8, the switch housing portion 18 is provided on the peripheral side wall 4 a of the body 4 adjacent to the second left guide groove 9 on the back side of the first left guide groove 10. Provided in the switch accommodating portion 18 is a write protect switch movable contact member 19 for the second card 2, a card detection switch movable contact member 20 for detecting the second card 2, and each of these movable contact members 19 , 20 is provided with a common fixed contact member 21, and the write protect switch movable contact member 19 and the fixed contact member 21 constitute a write protect switch for the second card 2, and the card detection switch movable contact member. 20 and the fixed contact piece member 21 constitute a detection switch of the second card 2. Each contact member 19, 20, 21 is provided with soldering legs 19 a, 20 a, 21 a that protrude from the peripheral side wall 4 a of the body 4 substantially flush with the bottom surface of the housing 8. Each of these leg portions 19a, 20a, and 21a is soldered and fixed to a predetermined land on the board by electrically mounting the card connector on the board, and is electrically connected. Thereby, each contact piece member 19, 20, and 21 is electrically connected to the substrate. When the second card 2 is completely inserted into the card insertion space 7 through the card insertion slot 6, the card detection switch movable contact member 20 is pressed by the left corner of the insertion side end of the second card 2, If the detection switch of the second card 2 is closed and a write protect slide button (not shown) provided on the left side of the second card 2 is operated to the write protect position at this time, the write protect slide button The write protect switch movable contact member 19 is pressed to close the write protect switch for the second card 2.

  As described above, the card connector is configured as a so-called multi-card connector that can handle three types of memory cards (first card 1, second card 2, and third card 3) having different external shapes.

  When the first card 1 is inserted into the card insertion space 7 through an opening portion having a width W1 and a height T1 corresponding to the cross-sectional shape of the first card 1 in the card insertion slot 6, the first card 1 is shown in FIG. 7, the left and right side portions are guided to be inserted obliquely downward into the card insertion space 7 from the card insertion slot 6 by the first guide 14 having the inclination angle θ1, and the insertion side end portion is the first left and right side. Inserted into the card insertion space 7 obliquely downward to the complete insertion position where the closed end face of the guide groove 10 abuts, and inserted into the card insertion space 7 in the horizontal direction along the top plate 5a of the cover 5 through the card insertion slot 6. The contact terminal of the first card 1 is in contact with and electrically connected to the contact portion 11a of the first contact 11 provided lower than the bottom surface of the card 3. As a result, the substrate and the first card 1 are electrically connected via the first contact 11, and signals and data can be transmitted between the electronic device and the first card 1. The first card 1 that has been completely inserted into the card insertion space 7 through the card insertion slot 6 holds the end of the first card 1 protruding to the front side of the housing 8 through the card insertion slot 6 and pulls it out. The card can be removed from the insertion space 7 through the card insertion slot 6.

  When the second card 2 is inserted into the card insertion space 7 through the opening portion having a width W2 and a height T2 corresponding to the cross-sectional shape of the second card 2 in the card insertion slot 6, the second card 2 is shown in FIG. 9, the left and right side portions are guided to be inserted obliquely upward into the card insertion space 7 from the card insertion slot 6 by the second guide 15 having the inclination angle θ2, and the insertion side end portion is the second left and right side. Inserted into the card insertion space 7 obliquely upward to the complete insertion position where the closed end face of the guide groove 9 abuts, and inserted into the card insertion space 7 in the horizontal direction along the top plate 5a of the cover 5 through the card insertion slot 6. The contact terminal of the second card 2 contacts and is electrically connected to the contact portion 12a of the second contact 12 provided higher than the bottom surface of the card 3. As a result, the substrate and the second card 2 are electrically connected via the second contact 12, and signals and data can be transmitted between the electronic device and the second card 2. The second card 2 completely inserted into the card insertion space 7 through the card insertion slot 6 is grasped and pulled out by holding the end of the second card 2 protruding to the front side of the housing 8 through the card insertion slot 6. The card can be removed from the insertion space 7 through the card insertion slot 6.

  When the third card 3 is inserted into the card insertion space 7 through an opening portion having a width W3 and a height T3 corresponding to the cross-sectional shape of the third card 3 in the card insertion slot 6, the third card 3 is shown in FIG. 11, the top surface of the body 4 is inserted and guided in the horizontal direction from the card insertion slot 6 into the card insertion space 7 by the top plate 5 a of the cover 5, and the insertion side end portion is the rear side wall of the card insertion space 7. The third card 3 is inserted into the card insertion space 7 in the horizontal direction up to the complete insertion position where it hits the rear inner surface of the peripheral side wall 4a, and the third card 3 contacts the contact portion 13a of the third contact 13 provided in the innermost part of the card insertion space 7. Are contacted and electrically connected. As a result, the substrate and the third card 3 are electrically connected via the third contact 13, and signals and data can be transmitted between the electronic device and the third card 3. The third card 3 completely inserted into the card insertion space 7 through the card insertion slot 6 is grasped and pulled out by grasping the end of the third card 3 protruding to the front side of the housing 8 through the card insertion slot 6. The card can be removed from the insertion space 7 through the card insertion slot 6.

  The first card 1 is inserted obliquely downward into the card insertion space 7 through the card insertion slot 6, and is inserted into the card insertion space 7 in the horizontal direction along the top surface of the card insertion space 7 through the card insertion slot 6. Since the contact terminal of the first card 1 is brought into contact with and electrically connected to the contact portion 11a of the first contact 11 provided lower than the bottom surface of the third card 3, the third card 3 is the second contact. The third card 3 only needs to avoid contact with the second contact 12, and the third card 3 pushes down the second contact 12 with the second contact pressing member 17 to avoid contact with the second contact 12. Further, the second card 2 is inserted obliquely upward into the card insertion space 7 through the card insertion slot 6, and is inserted into the card insertion space 7 through the card insertion slot 6 along the top surface of the card insertion space 7 in the horizontal direction. Since the contact portion 12a of the second contact 12 provided higher than the bottom surface of the third card 3 is brought into contact with and electrically connected to the contact terminal of the second card 2, the bottom surface of the second card 2 is the card. The first contact 11 passes through the first contact 11 at a position higher than the insertion slot 6, and the contact portion 11 a of the first contact 11 passes through the card insertion slot 6 along the top surface of the card insertion space 7 in the horizontal direction. Since the second card 2 is provided at a position lower than the bottom surface of the third card 3 to be inserted into the first contact 11, the first contact 11 is connected to the first contact pressing member 16 in order to avoid contact with the first contact 11. More depressing amount requires only a little. Thus, the bottom surface is rubbed against the first contact 11 or the second contact 12 when the second card 3 or the third card 3 in the so-called multi-card connector is inserted into the card insertion space 7 through the common card insertion slot 6. Wear, increase in insertion resistance, increase in connector height, and second contact 12 for the second card 2 and third contact for the third card 3 Compared to 13, it is possible to prevent the life of the first contact 11 for the first card 1 from being remarkably shortened.

  Further, the contact terminal of the first card 1 is brought into contact by further pressing down the contact portion 11a of the first contact 11 preloaded by the first contact pressing member 16, and the contact terminal of the second card 2 is the second contact terminal. While the contact portion 12a of the second contact 12 preloaded by the contact pressing member 17 is further pressed down to make contact, the second card 2 moves the first contact 11 from the free state to the first contact pressing member 16. To avoid contact with the first contact 11, and the third card 3 avoids contact with the second contact 12 by pressing the second contact 12 from the free state by the second contact pressing member 17. Therefore, the contact reliability of the first contact 11 for the first card 1 and the second contact 12 for the second card 2 is improved and the second It can be achieved card 2 or the third card 3 of the insertion resistance reduction and at the same time.

  Therefore, even if the card insertion slot 6 is common, the second card 2 and the third card 3 are in contact with the first contact 11 for the first card 1 and the second contact 12 for the second card 2. The second card 2 and the third card 3 can be easily inserted and removed, and the first contact 11 and the second contact 12 can damage the second card 2 and the third card 3. Absent.

It is an external appearance perspective view of the card connector which is one embodiment of this invention. It is an external appearance perspective view of the state which removed the cover of the card connector. It is a front view (front view) which shows the card insertion slot of the card connector. It is a top view of the state which removed the cover of the card connector. It is sectional drawing of the card connector. It is a top view of the state which removed the cover of the card connector which shows the insertion state of a 1st card | curd. It is principal part sectional drawing of the card connector which shows the insertion state of a 1st card | curd. It is a top view of the state which removed the cover of the card connector which shows the insertion state of a 2nd card | curd. It is principal part sectional drawing of the same card connector which shows the insertion state of a 2nd card | curd. It is a top view of the state which removed the cover of the card connector which shows the insertion state of a 3rd card | curd. It is sectional drawing of the same card connector which shows the insertion state of a 3rd card | curd.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st card 2 2nd card 3 3rd card 4 Body 5 Cover 6 Card insertion slot 7 Card insertion space 8 Housing 9 2nd guide groove 10 1st guide groove 11 1st contact 11a Contact part 12 Second contact 12a Contact portion 13 Third contact 14 First guide 15 Second guide 16 First contact pressing member 16a Through hole 16b Rotating shaft 17 Second contact pressing member 17a Through hole 17b Rotating shaft θ1, θ2 Tilt angle

Claims (1)

  Through a common card insertion slot provided on one end side, the first card, the second card that is longer than the first card, narrower in width, thicker than the first card, and longer than the second card A housing having a card insertion space into which a third card having a long, narrow width and a large thickness can be inserted, and an insertion end side of the bottom surface of the first card inserted into the card insertion space through the card insertion slot A first contact provided in a cantilever shape on the card insertion opening side of the card insertion space so that a contact portion provided on the free end is brought into contact with and electrically connected to a contact terminal provided on the card, and the card insertion The first of the card insertion space is configured such that a contact portion provided on the free end side is brought into contact with and electrically connected to a contact terminal provided on the insertion end side of the bottom surface of the second card inserted into the card insertion space through the opening. Behind the contact A second contact provided in a cantilever shape, and a contact portion provided on the free end side on a contact terminal provided on the insertion end side of the bottom surface of the third card inserted into the card insertion space through the card insertion slot. A third contact provided in the form of a cantilever on the back side of the second contact in the card insertion space so as to be electrically connected by contact with the both ends of the first card is slidably fitted. A first guide provided with an inclined angle on both side walls of the card insertion space so that the first card is inserted and guided obliquely downward from the card insertion slot into the card insertion space; and the surface of the second card A second guide provided with a slant angle on both side walls of the card insertion space so that both side ends of the card are brought into sliding contact with each other to guide the second card into the card insertion space obliquely upward from the card insertion slot; , The contact portion of the first contact on the lower surface side A first contact pressing member that is provided with a through-hole penetrating from the lower surface to the upper surface, and one end of which is pivotally supported on both side walls of the card insertion space, and a contact portion of the second contact from the lower surface to the upper surface And a second contact pressing member pivotally supported on both side walls of the card insertion space by one end side, and horizontally extending along the top surface of the card insertion space through the card insertion slot. A contact portion for the first contact is provided at a position lower than the bottom surface of the third card to be inserted into the card insertion space, a contact portion for the second contact is provided at a higher position, and the first card is inserted into the card insertion space through the card insertion slot. The first card rides on the first contact pressing member, and the first contact pressing member is pushed down on the bottom surface of the first card. The contact terminal of the first card comes into contact with the contact portion of the first contact that has been preloaded as the pressing member is pushed down, and the second card is inserted obliquely upward into the card insertion space through the card insertion slot. By inserting, the second card rides on the first contact pressing member, pushes down the first contact pressing member on the bottom surface of the second card, and the first contact pressing member pushes down the first contact pressing member. The second card rides on the second contact pressing member in a state in which the contact portion of the second card is pushed down lower than the bottom surface of the second card, and the second contact pressing member is pressed down on the bottom surface of the second card, The contact terminal of the second card comes into contact with the contact portion of the second contact that has been preloaded along with the depression of the second contact pressing member, and the third contact By inserting the card into the card insertion space in the horizontal direction through the card insertion slot, the first card is in a height position where the third card does not contact the contact portion of the first contact and the first contact pressing member. Passing through the contact portion of the contact and the first contact pressing member, the third card rides on the second contact pressing member, and the second contact pressing member is pushed down on the bottom surface of the third card. The contact terminal of the third card is brought into contact with the contact portion of the third contact in a state where the contact portion of the second contact is pushed down lower than the bottom surface of the third card as the pressing member is pushed down. A card connector characterized by comprising.

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