TWI229819B - Card connector with selective card stop mechanism - Google Patents

Abstract

A stop mechanism is disclosed for selectively restricting insertion of a card into a card slot of a card connector. The stop mechanism is positioned in the card slot along a path of insertion of the card into the card slot. A card having a thickness less than a predetermined thickness engages a stop portion of the stop mechanism when inserted into the card slot, preventing further insertion of the card past the stop mechanism. A card having a thickness greater than the predetermined thickness contacts an engagement portion of the stop mechanism when inserted into the card slot, producing a movement of the stop mechanism out of the path of card insertion.

Description

1229819 发明 Description of the invention: [Technical Field of the Invention] [Technical Field] The present invention relates to a card connector, and particularly to a mechanism for restricting the insertion of a 5 card into a card slot of the card connector. [Prior Art] The functionality of electronic devices such as personal computers, mobile phones, and personal digital assistants (PDAs) can be enhanced by installing various types of electronic cards. Various components such as CPU (Central Processing Unit) or Memory 1C (Integrated Circuit) can be incorporated into the card. Specific examples of such cards are PCMCIA (Personal Computer Memory Card International Agreement) cards, SIM (Subscriber Identification Module) cards, MMC (Multimedia Card), SD (Super Density) cards, and SMART cards. The thickness of these cards can vary greatly, some cards are relatively thin and some cards are relatively thick. The card connector has been developed to have two or more card slots, so that the electronic delta device can be used to connect several types of cards. These connectors can be designed to accept two cards with different thicknesses. Fig. 16 shows a specific example of such a card connector 1, in which cards having different thicknesses are inserted into slots 2A and 2B provided in parallel. One thicker card is inserted into the card slot 2A and the other thinner card is inserted into the card slot 2B. The card slot 2A includes a pair of guide slots 7 facing each other, and the card slot 2B also includes a pair of guide slots 8 facing each other 1229819. By contacting the periphery (not shown) of the card with the front ends of the respective slots 7 and ^, and inserting the card in the direction of the card connector, the card is inserted into the card connector 1. Card connectors that are designed to be used with-relatively thicker cards-must have-size deviations to accept card slots for thicker cards. Card connectors are usually combined with electrical contacts or pins that are provided at the plug-in end of the card slot. These locks are arranged to engage the card with the complementary socket connector placed in the card when the card is fully inserted into the card slot. Just as a thicker card may have a greater thickness than a relatively thinner card-the opening that is structured to accept a thicker card will generally be large enough to allow the thinner card to be inserted into the card slot. However, because of its thinner thickness than 10 15 j, the card may not touch the inner surface of the card slot that is designed to restrict and guide the movement of the thicker card. Therefore, since the relatively thin card »moves more freely inside the larger card slot, the movement of the thinner card inside the larger card slot may damage the connecting pin. An object of the present invention is to restrict a thinner card from being inserted into a card slot constituting a relatively thicker card, while still allowing the thicker card to be completely inserted into the card slot. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a card connector according to the present invention in combination with a stop mechanism; FIG. 2 is a perspective view of the card connector of FIG. 1, showing the top plate of the 5 male connector removed 1229819-Figure 3 is the first! Figure 4 is a longitudinal cross-sectional view of a card connector, showing that a thicker card is inserted into a card slot of the connector; Figure 4 is a longitudinal cross-sectional view of Figure 3, which shows that the thicker card is inserted deeper into the connection 5 is a longitudinal sectional view of the card connector of FIG. 1, which shows a thin card inserted into the card slot of the connector; FIG. 6 is a longitudinal sectional view of FIG. 5 , Which shows that the thicker card is inserted deeper into the slot of the connector card; FIG. 7 is a longitudinal sectional view of FIG. 5, which shows that the 10 piece is engaged with a stopper; FIG. 8 is FIG. 5 Figure 9 is a longitudinal sectional view showing that the thinner card is inserted into the card slot at an angle and is engaged with the stop portion of the present invention; Figure 9 is a side view of the connector of Figure 丨, which is shown in Figure 15 The direction indicated by the arrow ιχ shows the inside of the card slot; FIG. 10 is a partial perspective view of the connector of FIG. 5, which shows that it is thinner before joining between the stopper portion of the present invention and the thinner card The card is inserted into the slot; Figure 11 is the part of Figure 10. Sub-perspective view showing the engagement between the thinner card of the present invention and the stopper; FIG. 12 is a perspective view showing a thicker card for insertion into the card connector of the present invention; FIG. 13 Is a side view showing the thicker card of FIG. 12 in the direction indicated by the arrow XII in FIG. 12; 1229819 FIG. 14 is a longitudinal sectional view of FIG. 5 showing that the thinner card system extends past the stopper of the present invention Figure 15 shows a longitudinal cross-sectional view of another specific example of the card connector 5 combined with the blocking mechanism of the present invention; and Figure 16 shows A perspective view of a conventional card connector having two card slots. t Aspects of Implementing the Invention 10 Figures 11-11 show a specific example of the card connector of the present invention. This specific example shows a pair of card slots, and the frame is configured to accept a thinner card in one of the " Hai card slots, and a thicker card in the other card slot. Referring to Figs. 1 and 9, the card connector 1 has a housing of a base plate 10, which is generally rectangular, side walls 9, which extend generally in parallel from opposite sides of the base plate 10, and a top plate 41, which extends generally parallel to the base plate 10. The base plate 10 includes a plurality of protruding blocks 47 for mounting the connector 1 to a printed circuit board coupled to an electronic device (not shown) object by using screws or other hardware.

20 Referring to FIGS. 2, 3, and 9, a guide groove 13 and a guide groove U are formed in each side wall 9 and extend in a card insertion direction indicated by an arrow IX (picture 1). For convenience, the guide groove u is referred to as', the lower guide groove, and the guide groove 13 is referred to as the "upper guide groove." It should be understood that such as ,, left ,,, " The terms "right", "top", 1229819 bottom, upper, "lower" and the like have been used in the description of the invention and in the scope of the patents for a simpler and more comprehensive understanding of the invention. These terms are not intended to limit the invention in any way. As shown in FIG. 9, the upper guide grooves ^ 3 and 5 formed in the side wall 9 are framed to face each other to receive an edge of a flat card. Similarly, the lower guide grooves u formed in the side walls 9 are constructed to be opposed to each other. Each upper guide slot 13 has a relatively large opening having a size capable of receiving a relatively thick card (for example, a PCMCIA card), and each lower guide slot u Both have a relatively narrow opening of 0, which is of a size that can accept a relatively thin card (for example, a SMART card). Referring to Figs. 1, 2 and 9, an intermediate partition 40 is disposed between the base plate 10 and the top plate 41 and generally extends parallel to the base plate 10. The top plate 41, the side wall 9 (including the upper guide slot 13), and the middle 5 partition plate 40 are combined to define an upper card slot hole 13A. The upper guide groove 13 is located above the middle plate 40 and within the upper card slot hole 138. Since the upper guide slot 13 has a relatively wide opening which is sized to receive a relatively thick card 6, the upper card slot 13 is provided to receive the thick card 6. In addition, the middle partition plate 40, the side wall 20 9 (including the lower guide groove u), and the base plate 10 are combined to define a lower card slot hole 11A. The lower guide slot U is located below the middle plate 4Q and is in the lower card slot hole 11A. Because the lower guide slot Η has a relatively narrow 1229819 opening that can accept a relatively thin card 3, the lower card slot ji A is set to accept the thicker card 3 ° Refer to Figure 3-8 A sealing wall 12 is used to seal the side end portions of the upper card slot hole 13A and the lower card slot hole 11A. The sealing wall 512 may be formed of a synthetic resin. As shown in Figs. 3-8, the sealing wall 12 is provided with a connecting pin 14, which forms an electrical connection between the thicker card 6 and the card connector 1. Referring to Figures 3, 4 and 9, the upper card slot 13A is quilted to form an end 100 capable of receiving a thicker card 6 therein. However, a user 10 may mistakenly insert the end 102 of the thicker card into the upper card slot 13A. In order to avoid this, the connector 丨 includes a mechanism 50 for preventing the thicker card 6 from being inserted into the upper card slot 13A (Fig. 9). Referring to Fig. 9, the mechanism 50 includes a right polarized key 52 and a left polarized key 53 formed on the inner surface of the side wall 9 in the upper card slot 13A 15 ', respectively. Although the right key 52 and the left key 53 have the same shape, the left key 53 is set slightly higher than the position where the right key 52 is provided in the upper card slot 13A. As shown in Figs. 12 and 13, a pair of corresponding mounting grooves 54, 55 are respectively formed around the respective sides of the thicker card 6 20 adjacent to one end 100 of the thicker card 6 'the thicker card system is inserted Inside the card slot 13A. However, at the opposite end 102 of the thicker card 6, no slot is formed. Therefore, when the thicker card 6 is inserted into the upper card slot 13a, the right side key 52 is received in the mounting slot 54 and the left side key 53 10 1229819 is received in the mounting slot 55. Because the opposite end 102 of the thicker card 6 does not have a slot for receiving the keys 52 and 54 therein, if the card end 102 is inserted into the upper card slot J 3 a, the keys 52, 54 will abut against the more The end of the thick card 6 is 100, thereby preventing the thicker 5 card 6 from being entirely inserted into the upper card slot. Referring to Figs. 2-8, the connector 1 also includes a selective blocking mechanism for preventing the thinner card 3 from being completely inserted into the upper card slot 13A. The selective stop mechanism includes one or more elements 17 each having a base portion 19, a stop member 106, and a spring portion 21, the spring portion connecting the stop member 1010 and the base portion 19 connection. The base portion 19 in each component 17 is usually fixed to a part of the connector and connected to the upper card slot 13A. In the specific example shown in Figs. 2-8, the base portion 19 is separately provided and fixed to a space of 4G in the lower boundary defining the upper card slot 13A. The spring portion 21 is extended from the base portion 15 minutes 19 and is inclined in a direction generally toward the top plate 41 which defines the upper boundary of the upper card slot 13A.敉 敉 丨 π Press the main spring part _... free end 'and include-engaging part 1 () 4 to join the thicker card 6 or the thinner card 3 to the upper card slot during card insertion Within 13Α. As shown in FIG. 3, the stopper member 106 extends into a path within the upper card slot 1 13 of the two cards, so the card will engage the stopper member ⑽ during the insertion. Since the stopper member 106 is attached to the free end of the spring portion 21 and does not fix the other parts of the connector 20, 1229819, the stopper member 〇〇6 can be moved inside the upper card slot i 3 A. The joint portion 104 is separated from the top plate 41. The stopper member 106 also includes a stopper portion 25 attached to the engaging portion 104. The stopper portion projecting from the engaging portion 104 is usually a series of vertically abutting the top plate 41 defining the upper boundary of the upper card slot 13A. In general, the stopper portion protruding from the engaging portion 104 has a length of 疋 疋 so that the gap between the engaging portion 104 and the top plate 41 is smaller than the thickness of the thin card 3. As described above, the base portion 19, the spring portion 21, and the stopper member 10 106 form a cantilever structure, which together with the top plate 41 defines a closed portion 110 which is structured to receive therein the inserted into the upper card slot UA. Part of the card. The base portion 19, the spring portion 21, and the stopper member 1G6 'of the element 17 can be formed integrally, for example, by molding or stamping. 15 Referring to Figures 3-4, the operation of the selective blocking mechanism during the insertion of a thicker card 6 will now be discussed. The blocking mechanism of the present invention selectively limits the extent to which a relatively thin card can be inserted into a card slot formed by a frame to accept a thicker card, while still allowing the thicker card to be inserted into the card slot. Referring to FIG. 20 and FIG. 3, when the thicker card 6 is inserted into the upper card slot μ, the thicker card 6 will engage the spring portion u in the stopper mechanism 17. Referring to FIG. 4, when the thicker card 6 is inserted into the upper card slot w, the thicker card 6 contacts the engaging portion UM ′ of the stopper member 106 and it presses the spring portion 21 to elastically oppose the spring portion 21. Basal portion 12 1229819 19% turn. Because the stopper member 06 is attached to bend the end of the spring portion 21, the rotation of the spring portion 21 will force the stopper member 106 with a downward force in one direction, thus removing the stopper from the path where the thicker card 6 is inserted The stopper portion 25 allows the thicker card 6 to be inserted into the upper card slot j 3 a 0 through the stopper member 106 into the normal insertion position of the card indicated by the double dotted line. Referring to Figures 5-8, the operation of the selective blocking mechanism during the insertion of the thinner card 6 will now be discussed. Referring to FIG. 5, when the thinner card 3 is inserted into the upper card slot 13 Λ in the direction indicated by the arrow Iχ (Fig. 10), the card 3 will engage the spring portion 21 of the locking mechanism 17. Referring to FIG. 6, when the thinner card 3 is inserted into the upper card slot j 3 A, the thinner card 3 contacts the spring portion 21 and is pushed upward toward the top plate 41 until the card 3 contacts the engagement in the stopper mechanism 17. Section 104. When the gap between the joint 15 portion 104 and the top plate 41 is smaller than the thickness of the thinner card 3, the 'card 3 will be caught between the joint portion 04 and the top plate 41, causing the stopper member 106 to move away. The insertion path of the card 3 moves slightly downward. This creates a slight gap between the stop portion 25 and the top plate 41. When the thinner card 3 is inserted deeper into the upper card slot 201a, the card 3 contacts the stopper portion 25. Because the gap between the stopper 25 and the top plate 41 is not large enough to allow the thinner card 3 to pass through the contact between the stopper 25 and the thinner card 3 to prevent the card 3 from further moving to the upper card slot 13A. within. 13 1229819 It can be seen from the above description and illustration that when a card having a thickness greater than a predetermined thickness is inserted into the upper card slot i3A, the space between the card and the spring portion 21 in the stopper mechanism 17 The contact will cause the spring portion 21 and the stopper member 106 to rotate out of the insertion path of the five pieces of the card, thereby allowing the card to be inserted through the stopper member 106 into the card slot of the access portion. Meanwhile, when a card having a thickness less than a predetermined thickness is inserted into the upper card slot 13A, the rotation movement of the stopper member will be insufficient to remove the stopper portion 25 from the card insertion path. In this case, the stopper portion 25 will engage 10 thinner cards and prevent the card from being inserted beyond the stopper mechanism 17. Referring to Fig. 8, since the thickness of the opening extending into the upper card slot 13 is larger than that of the thin card 3, the card 3 can be inserted into the upper card slot 13A at an angle. When the thinner card 3 inserted into the upper card slot BA enters the card slot, the thinner card 3 contacts the contact portion 104 and the top plate 4 and thus causes the stopper member 106 to slightly downward. Movement caused deviation from the insertion path. As shown in FIG. 6, due to the insertion effect of the card 3 at an angle, the downward movement of the stop member ι06 will be slightly larger than the downward movement of the stop member generated during the insertion of the card 3 in the arrow ιχ direction; Therefore, the gap generated between the stopper portion h and the sheet 41 may be slightly larger than the previous case. When the thinner card 3 is further inserted into the upper card slot UA, the card 3 comes into contact with the supporting portion 25. However, even when the thinner card 3 is inserted into the upper card slot 138 at an angle, the gap between the stop portion 25 and the top plate 41 is not large enough to allow 14 1229819 to allow the thinner card 3 by. Therefore, the engagement between the stopper portion 25 and the thinner card 3 prevents the card 3 from further moving into the upper card slot 13A. 5 10 15 20 Referring to FIG. 14, even in the case where the thinner card 3 is pushed past the stopper knife 25, the thinner card 3 will be in contact with the pin because The contact with the stopper mechanism 17 will cause the thinner card 3 to be biased toward the stopper structure and thus biased toward the top plate 14 ', so the thinner card will be forced to engage the left and right side polarized keys 52, 53 Therefore, if the card is inserted beyond the stopper mechanism 17, the thinner card 3 will slide along the bottom surface of the top plate 4m. According to Fig. 15, in another specific example, the stopper mechanism 17

The base portion 19 may be fixed to—defining—the surface of the upper boundary surface of the upper card slot 13A. In this specific example, the stopper mechanism u and the intermediate partition 40 will form a closed portion 110 of a thinner card 3 for receiving during the card insertion. At the same time, during the card insertion period, the contact between the thin card 3 and the stopper mechanism 17 will cause the relatively thin piece 3 to face the stopper member 106 and thus to the intermediate partition 40. Because: if the card passes over the stopper mechanism 17, When inserted, it slides along the upper surface of the intermediate partition 40. because

When the door is closed, the middle plate 4 is separated-thicker than the thinner card 3 = to make the card pass through the catcher ... it cannot be contacted with the pin 14. Kaixia is J 15 1229819 In another specific example (not shown), a loop can be formed by an elongated member (for example, a metal wire) and is arranged in the upper card slot 13A to be close to a The thinner card 3 inserted into the upper card slot 13A is engaged. 5 It should be understood that the foregoing description is only a detailed description of various different specific examples of the present invention, and many changes can be made based on the content disclosed again without departing from the spirit or scope of the invention. Therefore, the foregoing description is not intended to limit the scope of the invention. Conversely, the scope of this disclosure should only be determined by the scope of the accompanying patent applications and their equivalents. [Circular brief description] Fig. 1 shows a card connector according to the present invention in combination with a stop mechanism. Fig. 2 is a perspective view of the card connector of Fig. 1, which shows the top plate of the connector. Removed; Figure 3 is a longitudinal sectional view of the card connector of Figure 1, which shows the insertion of a thicker card into a card slot of the connector; Figure 4 is a longitudinal sectional view of Figure 3, which shows the The thicker card is inserted deeper into the card slot of the connector; FIG. 5 is a longitudinal sectional view of the card connector of FIG. 1, which shows that a thinner card is inserted into the card slot of the connector; The figure is a longitudinal sectional view of Fig. 5, which shows that the thicker card is inserted deeper into the connector card slot; 16 1229819, which shows the thinner card. Fig. 7 is a longitudinal sectional picture of Fig. 5 and a stop Partially engaged; it shows that the thin cumming stopper is connected to Fig. 8 is a longitudinal sectional view of Fig. 5, and 5 pieces are inserted into the card slot at an angle and merge with the hair; Fig. 9 is i Side view of the connector shown by arrow IX in Figure ^ Shows the inside of the card slot; 10th is a partial perspective view of the connector of 目的 5 mesh, which shows that the thinner 10 card is inserted into the slot before the stopper of the present invention is joined to the thinner card. Figure 11 is a partial perspective view of Figure 10, which shows the engagement between the thinner card of the present invention and the stopper; Figure 12 is a diagram showing the comparison of the card connector for insertion into the card of the present invention. Perspective view of a thick card; 15 FIG. 13 is a side view of the thicker card shown in FIG. 12 in the direction indicated by the arrow XII of FIG. 12; FIG. 14 is a longitudinal sectional view of FIG. The thinner card extends through the blocking mechanism of the present invention to resist a polarization feature combined with the card slot; FIG. 15 shows another specific embodiment of a card connector combined with the blocking mechanism of the present invention. Example is a longitudinal sectional view; and FIG. 16 is a perspective view of a conventional card connector having two card slots. 17 1229819 [Representative symbols for the main components of the diagram] Card connector 1 Middle partition 40 Thinner card 3 Top plate 41 Thicker card 6 Protrusion block 47 Side wall 9 Mechanism 50 Base plate 10 Right polarized key 52 Guide slot 11, 13 Left polarized key 53 Lower card slot 11A Corresponding mounting slot 54, 55 Sealing wall 12 End 100 Upper card slot 13A End 102 Connecting pin 14 Engaging portion 104 Stopper mechanism element 17 Stopper member 106 Base portion 19 Closed portion 110 Spring part 21 Arrow IX Stop part 25

18

Claims (1)

1229819 The scope of patent application: 1. A card connector (1), which includes: a housing defining a card slot (13A) for receiving a card (3, 6) therein; The connector (1) is characterized by a selective stop mechanism (17) fixed to a part of the card connector (丨), the stop mechanism (17) including a movable stop member (106), the stop The component is arranged in a path where a card (3) is inserted into a card slot (13A) to engage the card during card insertion, thereby preventing the card (3) from being inserted beyond the stop member (106). Enter 10 card slots (13A); one of the cards (6) inserted into the card slot (13A) with a thickness greater than a predetermined thickness will engage the blocking member (106) to A movement is generated to move the stopper member (106) out of the insertion path of the card (6), thereby allowing the card (6) to be inserted into the card slot (i3A) 15 beyond the stopper member (106). 2 · If the scope of patent application is the first! The card connector of item, characterized in that the supporting mechanism (17) further comprises a base portion (19) fixed to a portion of the connector (1), and-the base portion (19) extending between the base portion ⑽ and the stopper member Spring section (21). 20 3. The card connector according to item 2 of the scope of patent application, characterized in that the base portion (9), the spring portion (21) and the stopper member (106) are integrally formed. 4. The card connector according to item 丨 of the application scope is characterized in that the insertion effect of the card with a thickness greater than the thickness of the card is caused by the inserting effect of the 19 1229819 stopper member (106) in the Rotate around the base part (19) and turn out the insertion path of the card (6). 5. The card connector according to the scope of the patent application 'characterized in that the blocking structure W) includes a joint portion (104) separated from a surface defining a boundary of the card slot (13A), The engaging portion is used for engaging with the card (3, 6) during card insertion so that the stopper member (106) is moved and an attachment 'the stopper at the engaging portion (104) > ( 25) and a stop portion (25) that abuts a surface that defines the boundary of the card # · hole (13A), wherein the stop portion (25) is engaged with the card (3, 6) during card insertion to avoid Card · 10 (3) Insert the card slot (13A) over the stopper (106). 6. The card connector according to item 5 of the scope of patent application, characterized in that the broadcast stop portion (25) generally extends into the card slot (13A) in a direction perpendicular to the insertion direction of the card (3, 6). 1 7 · If a card connector is required for the full-time item 丨, it is characterized in that the supporting mechanism (17) includes another movable arresting member (touching) separated from the blocking member (106). Another-the blocking member is provided in the path where the card (3, 6) is inserted into a card slot (13A) to engage the card (3, 6) during card insertion, so as to avoid the card from crossing the load The component (gang and inserted into the slot (13A) of the card, one of which is inserted into the card slot (inside) 0-a card (6) having a thickness greater than a predetermined thickness, will join the other " The stopper member (106) generates a movement to move the other stopper member (106) from the insertion path of the card ⑹, thereby allowing the card (6) to be inserted over the other stopper member (106). Inside the card slot (13A). 20 1229819 8 · If the patent application covers a 7 g card connector, it is characterized in that the stop mechanism (17) further includes another part fixed to the connector (1). A base portion (19), and one extending between the other base portion (9) and the other stop member (106) Another spring part (21). 5 9 · Such as the card connector of the first patent application scope, characterized in that the stop mechanism (17) is fixed to a surface connected to the card slot (13A) 10_ If the card connector according to item 9 of the scope of patent application is characterized in that the surface defines the upper boundary of the card slot (13A). 11. If the card connector in item 9 of the scope of patent application is characterized by the The surface boundary 10 defines the lower boundary of the card slot (13A). 12. If the card connector of the scope of application for a patent application is characterized in that the shell defines another card slot (11A). 13. If applying for a full-time enclosure The twelfth card connector is characterized in that the opening is connected 15 times to another card slot (11A) having a size smaller than a predetermined thickness. 14. A type with a pair of opposite surfaces (40, 41) as a boundary To define a card connector (1) of a card slot, the card connector (1) is characterized in that a blocking mechanism (Π) extends from one of the opposing surfaces (40, 41) and abuts to the other An opposing surface (40, 41), and a slot (13A) defined to receive a portion to be inserted 2 Inside the card (3) to prevent the card from being inserted beyond the stopper mechanism (17). 15. As stated in the card connector of the patent claim, a part of the stopper mechanism (Π) is from the opposite surface One of (40,41) is extended to be used for contacting the card during the insertion to deflect the card (3,6) toward the closed portion (11). 21 1229819 16. The card according to item 14 of the scope of patent application The connector is characterized in that the stop mechanism (17) has a cantilever structure, the base portion (19) of the structure is fixed to one of the opposite surfaces (40, 41), and the free end of the structure abuts The other opposite surface (40,41). 5 17.—A card connector (1) comprising a housing defining a housing for use therein Features of the card connector (1): a first card slot (13A) for receiving a first card (6) and a second card slot (11A) for receiving a second card (6) therein The reason is that a movable blocking mechanism (17) extends into the path of the first card slot (13A) for inserting a card slot (13A). 10 The blocking mechanism (17) includes a When the second card (3) is inserted into the first card slot (13A), the blocking member (106) of the second card (3) is engaged to prevent the second card (3) from being inserted into a part of the In the first card slot (13A), the blocking member (106) is used to elastically deviate from the 15 insertion path of the first card (6) during the first card insertion into the first card slot (13A), To allow the card (6) to be inserted into this part of the card slot (13A) within. 18. The card connector according to item 17 of the scope of patent application, characterized in that the first card (6) has a thickness greater than the thickness of the second card (3). twenty two